172 files changed, 9399 insertions, 3366 deletions

diff --git a/net/appletalk/aarp.c b/net/appletalk/aarp.c
index 54640c01b50c..c34614ea5fce 100644
--- a/net/appletalk/aarp.c
+++ b/net/appletalk/aarp.c
@@ -35,6 +35,7 @@
 #include <net/datalink.h>
 #include <net/psnap.h>
 #include <linux/atalk.h>
+#include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
@@ -462,8 +463,7 @@ void aarp_probe_network(struct atalk_iface *atif)
                         aarp_send_probe(atif->dev, &atif->address);
 
                         /* Defer 1/10th */
-                        current->state = TASK_INTERRUPTIBLE;
-                        schedule_timeout(HZ / 10);
+                        msleep(100);
 
                         if (atif->status & ATIF_PROBE_FAIL)
                                 break;
@@ -510,9 +510,8 @@ int aarp_proxy_probe_network(struct atalk_iface *atif, struct atalk_addr *sa)
                 aarp_send_probe(atif->dev, sa);
 
                 /* Defer 1/10th */
-                current->state = TASK_INTERRUPTIBLE;
                 write_unlock_bh(&aarp_lock);
-                schedule_timeout(HZ / 10);
+                msleep(100);
                 write_lock_bh(&aarp_lock);
 
                 if (entry->status & ATIF_PROBE_FAIL)
@@ -565,7 +564,7 @@ int aarp_send_ddp(struct net_device *dev, struct sk_buff *skb,
                          *      numbers we just happen to need. Now put the
                          *      length in the lower two.
                          */
-                        *((__u16 *)skb->data) = htons(skb->len);
+                        *((__be16 *)skb->data) = htons(skb->len);
                         ft = 1;
                 }
                 /*
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 876dbac71060..192b529f86a4 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -401,7 +401,7 @@ out_err:
 }
 
 /* Find a match for a specific network:node pair */
-static struct atalk_iface *atalk_find_interface(int net, int node)
+static struct atalk_iface *atalk_find_interface(__be16 net, int node)
 {
         struct atalk_iface *iface;
 
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index d9b72fde433c..f564ee99782d 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -21,10 +21,7 @@
 
 static struct net_device_stats *br_dev_get_stats(struct net_device *dev)
 {
-        struct net_bridge *br;
-
-        br = dev->priv;
-
+        struct net_bridge *br = netdev_priv(dev);
         return &br->statistics;
 }
 
@@ -54,9 +51,11 @@ int br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 
 static int br_dev_open(struct net_device *dev)
 {
-        netif_start_queue(dev);
+        struct net_bridge *br = netdev_priv(dev);
 
-        br_stp_enable_bridge(dev->priv);
+        br_features_recompute(br);
+        netif_start_queue(dev);
+        br_stp_enable_bridge(br);
 
         return 0;
 }
@@ -67,7 +66,7 @@ static void br_dev_set_multicast_list(struct net_device *dev)
 
 static int br_dev_stop(struct net_device *dev)
 {
-        br_stp_disable_bridge(dev->priv);
+        br_stp_disable_bridge(netdev_priv(dev));
 
         netif_stop_queue(dev);
 
@@ -76,7 +75,7 @@ static int br_dev_stop(struct net_device *dev)
 
 static int br_change_mtu(struct net_device *dev, int new_mtu)
 {
-        if ((new_mtu < 68) || new_mtu > br_min_mtu(dev->priv))
+        if (new_mtu < 68 || new_mtu > br_min_mtu(netdev_priv(dev)))
                 return -EINVAL;
 
         dev->mtu = new_mtu;
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index ef9f2095f96e..069253f830c1 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -57,9 +57,6 @@ int br_forward_finish(struct sk_buff *skb)
 static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)
 {
         skb->dev = to->dev;
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug = 0;
-#endif
         NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
                         br_forward_finish);
 }
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 69872bf3b87e..91bb895375f4 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -314,6 +314,28 @@ int br_min_mtu(const struct net_bridge *br)
         return mtu;
 }
 
+/*
+ * Recomputes features using slave's features
+ */
+void br_features_recompute(struct net_bridge *br)
+{
+        struct net_bridge_port *p;
+        unsigned long features, checksum;
+
+        features = NETIF_F_SG | NETIF_F_FRAGLIST 
+                | NETIF_F_HIGHDMA | NETIF_F_TSO;
+        checksum = NETIF_F_IP_CSUM;     /* least commmon subset */
+
+        list_for_each_entry(p, &br->port_list, list) {
+                if (!(p->dev->features 
+                      & (NETIF_F_IP_CSUM|NETIF_F_NO_CSUM|NETIF_F_HW_CSUM)))
+                        checksum = 0;
+                features &= p->dev->features;
+        }
+
+        br->dev->features = features | checksum | NETIF_F_LLTX;
+}
+
 /* called with RTNL */
 int br_add_if(struct net_bridge *br, struct net_device *dev)
 {
@@ -368,6 +390,7 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
 
         spin_lock_bh(&br->lock);
         br_stp_recalculate_bridge_id(br);
+        br_features_recompute(br);
         spin_unlock_bh(&br->lock);
 
         return 0;
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 2b1cce46cab4..9a45e6279c57 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -23,11 +23,7 @@ const unsigned char bridge_ula[6] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
 
 static int br_pass_frame_up_finish(struct sk_buff *skb)
 {
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug = 0;
-#endif
-        netif_rx(skb);
-
+        netif_receive_skb(skb);
         return 0;
 }
 
@@ -54,6 +50,9 @@ int br_handle_frame_finish(struct sk_buff *skb)
         struct net_bridge_fdb_entry *dst;
         int passedup = 0;
 
+        /* insert into forwarding database after filtering to avoid spoofing */
+        br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
+
         if (br->dev->flags & IFF_PROMISC) {
                 struct sk_buff *skb2;
 
@@ -108,8 +107,7 @@ int br_handle_frame(struct net_bridge_port *p, struct sk_buff **pskb)
         if (!is_valid_ether_addr(eth_hdr(skb)->h_source))
                 goto err;
 
-        if (p->state == BR_STATE_LEARNING ||
-            p->state == BR_STATE_FORWARDING)
+        if (p->state == BR_STATE_LEARNING)
                 br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
 
         if (p->br->stp_enabled &&
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index be03d3ad2648..03ae4edddac3 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -102,10 +102,6 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
 {
         struct nf_bridge_info *nf_bridge = skb->nf_bridge;
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug ^= (1 << NF_BR_PRE_ROUTING);
-#endif
-
         if (nf_bridge->mask & BRNF_PKT_TYPE) {
                 skb->pkt_type = PACKET_OTHERHOST;
                 nf_bridge->mask ^= BRNF_PKT_TYPE;
@@ -182,10 +178,6 @@ static void __br_dnat_complain(void)
  * --Bart, 20021007 (updated) */
 static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
 {
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug |= (1 << NF_BR_PRE_ROUTING) | (1 << NF_BR_FORWARD);
-#endif
-
         if (skb->pkt_type == PACKET_OTHERHOST) {
                 skb->pkt_type = PACKET_HOST;
                 skb->nf_bridge->mask |= BRNF_PKT_TYPE;
@@ -207,10 +199,6 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
         struct iphdr *iph = skb->nh.iph;
         struct nf_bridge_info *nf_bridge = skb->nf_bridge;
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug ^= (1 << NF_BR_PRE_ROUTING);
-#endif
-
         if (nf_bridge->mask & BRNF_PKT_TYPE) {
                 skb->pkt_type = PACKET_OTHERHOST;
                 nf_bridge->mask ^= BRNF_PKT_TYPE;
@@ -382,9 +370,6 @@ static unsigned int br_nf_pre_routing_ipv6(unsigned int hook,
         if (hdr->nexthdr == NEXTHDR_HOP && check_hbh_len(skb))
                         goto inhdr_error;
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug ^= (1 << NF_IP6_PRE_ROUTING);
-#endif
         if ((nf_bridge = nf_bridge_alloc(skb)) == NULL)
                 return NF_DROP;
         setup_pre_routing(skb);
@@ -468,9 +453,6 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb,
                         skb->ip_summed = CHECKSUM_NONE;
         }
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug ^= (1 << NF_IP_PRE_ROUTING);
-#endif
         if ((nf_bridge = nf_bridge_alloc(skb)) == NULL)
                 return NF_DROP;
         setup_pre_routing(skb);
@@ -517,10 +499,6 @@ static int br_nf_forward_finish(struct sk_buff *skb)
         struct net_device *in;
         struct vlan_ethhdr *hdr = vlan_eth_hdr(skb);
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug ^= (1 << NF_BR_FORWARD);
-#endif
-
         if (skb->protocol != __constant_htons(ETH_P_ARP) && !IS_VLAN_ARP) {
                 in = nf_bridge->physindev;
                 if (nf_bridge->mask & BRNF_PKT_TYPE) {
@@ -566,9 +544,6 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff **pskb,
                 (*pskb)->nh.raw += VLAN_HLEN;
         }
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug ^= (1 << NF_BR_FORWARD);
-#endif
         nf_bridge = skb->nf_bridge;
         if (skb->pkt_type == PACKET_OTHERHOST) {
                 skb->pkt_type = PACKET_HOST;
@@ -605,10 +580,6 @@ static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff **pskb,
                 (*pskb)->nh.raw += VLAN_HLEN;
         }
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug ^= (1 << NF_BR_FORWARD);
-#endif
-
         if (skb->nh.arph->ar_pln != 4) {
                 if (IS_VLAN_ARP) {
                         skb_push(*pskb, VLAN_HLEN);
@@ -627,9 +598,6 @@ static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff **pskb,
 /* PF_BRIDGE/LOCAL_OUT ***********************************************/
 static int br_nf_local_out_finish(struct sk_buff *skb)
 {
-#ifdef CONFIG_NETFILTER_DEBUG
-        skb->nf_debug &= ~(1 << NF_BR_LOCAL_OUT);
-#endif
         if (skb->protocol == __constant_htons(ETH_P_8021Q)) {
                 skb_push(skb, VLAN_HLEN);
                 skb->nh.raw -= VLAN_HLEN;
@@ -731,10 +699,6 @@ static unsigned int br_nf_local_out(unsigned int hook, struct sk_buff **pskb,
                                realoutdev, br_nf_local_out_finish,
                                NF_IP_PRI_BRIDGE_SABOTAGE_FORWARD + 1);
         } else {
-#ifdef CONFIG_NETFILTER_DEBUG
-                skb->nf_debug ^= (1 << NF_IP_LOCAL_OUT);
-#endif
-
                 NF_HOOK_THRESH(pf, NF_IP_LOCAL_OUT, skb, realindev,
                                realoutdev, br_nf_local_out_finish,
                                NF_IP_PRI_BRIDGE_SABOTAGE_LOCAL_OUT + 1);
@@ -779,8 +743,6 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
                 printk(KERN_CRIT "br_netfilter: skb->dst == NULL.");
                 goto print_error;
         }
-
-        skb->nf_debug ^= (1 << NF_IP_POST_ROUTING);
 #endif
 
         /* We assume any code from br_dev_queue_push_xmit onwards doesn't care
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index f8fb49e34764..917311c6828b 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -65,6 +65,15 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
                 }
                 break;
 
+        case NETDEV_FEAT_CHANGE:
+                if (br->dev->flags & IFF_UP) 
+                        br_features_recompute(br);
+
+                /* could do recursive feature change notification
+                 * but who would care?? 
+                 */
+                break;
+
         case NETDEV_DOWN:
                 if (br->dev->flags & IFF_UP)
                         br_stp_disable_port(p);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 54d63f1372a0..bdf95a74d8cd 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -174,6 +174,7 @@ extern int br_add_if(struct net_bridge *br,
 extern int br_del_if(struct net_bridge *br,
               struct net_device *dev);
 extern int br_min_mtu(const struct net_bridge *br);
+extern void br_features_recompute(struct net_bridge *br);
 
 /* br_input.c */
 extern int br_handle_frame_finish(struct sk_buff *skb);
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index b91a875aca01..d071f1c9ad0b 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -140,6 +140,9 @@ int br_stp_handle_bpdu(struct sk_buff *skb)
         struct net_bridge *br = p->br;
         unsigned char *buf;
 
+        /* insert into forwarding database after filtering to avoid spoofing */
+        br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
+
         /* need at least the 802 and STP headers */
         if (!pskb_may_pull(skb, sizeof(header)+1) ||
             memcmp(skb->data, header, sizeof(header)))
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 18ebc664769b..c4540144f0f4 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -859,8 +859,7 @@ static int translate_table(struct ebt_replace *repl,
                 if (repl->valid_hooks & (1 << i))
                         if (check_chainloops(newinfo->hook_entry[i],
                            cl_s, udc_cnt, i, newinfo->entries)) {
-                                if (cl_s)
-                                        vfree(cl_s);
+                                vfree(cl_s);
                                 return -EINVAL;
                         }
 
@@ -883,8 +882,7 @@ static int translate_table(struct ebt_replace *repl,
                 EBT_ENTRY_ITERATE(newinfo->entries, newinfo->entries_size,
                    ebt_cleanup_entry, &i);
         }
-        if (cl_s)
-                vfree(cl_s);
+        vfree(cl_s);
         return ret;
 }
 
@@ -1030,8 +1028,7 @@ static int do_replace(void __user *user, unsigned int len)
         }
         vfree(table);
 
-        if (counterstmp)
-                vfree(counterstmp);
+        vfree(counterstmp);
         return ret;
 
 free_unlock:
@@ -1040,8 +1037,7 @@ free_iterate:
         EBT_ENTRY_ITERATE(newinfo->entries, newinfo->entries_size,
            ebt_cleanup_entry, NULL);
 free_counterstmp:
-        if (counterstmp)
-                vfree(counterstmp);
+        vfree(counterstmp);
         /* can be initialized in translate_table() */
         if (newinfo->chainstack) {
                 for (i = 0; i < num_possible_cpus(); i++)
@@ -1049,11 +1045,9 @@ free_counterstmp:
                 vfree(newinfo->chainstack);
         }
 free_entries:
-        if (newinfo->entries)
-                vfree(newinfo->entries);
+        vfree(newinfo->entries);
 free_newinfo:
-        if (newinfo)
-                vfree(newinfo);
+        vfree(newinfo);
         return ret;
 }
 
@@ -1213,8 +1207,7 @@ void ebt_unregister_table(struct ebt_table *table)
         down(&ebt_mutex);
         LIST_DELETE(&ebt_tables, table);
         up(&ebt_mutex);
-        if (table->private->entries)
-                vfree(table->private->entries);
+        vfree(table->private->entries);
         if (table->private->chainstack) {
                 for (i = 0; i < num_possible_cpus(); i++)
                         vfree(table->private->chainstack[i]);
diff --git a/net/core/Makefile b/net/core/Makefile
index 81f03243fe2f..5e0c56b7f607 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -2,7 +2,8 @@
 # Makefile for the Linux networking core.
 #
 
-obj-y := sock.o skbuff.o iovec.o datagram.o stream.o scm.o gen_stats.o gen_estimator.o
+obj-y := sock.o request_sock.o skbuff.o iovec.o datagram.o stream.o scm.o \
+         gen_stats.o gen_estimator.o
 
 obj-$(CONFIG_SYSCTL) += sysctl_net_core.o
 
diff --git a/net/core/dev.c b/net/core/dev.c
index d4d9e2680adb..7016e0c36b3d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -115,18 +115,6 @@
 #endif  /* CONFIG_NET_RADIO */
 #include <asm/current.h>
 
-/* This define, if set, will randomly drop a packet when congestion
- * is more than moderate.  It helps fairness in the multi-interface
- * case when one of them is a hog, but it kills performance for the
- * single interface case so it is off now by default.
- */
-#undef RAND_LIE
-
-/* Setting this will sample the queue lengths and thus congestion
- * via a timer instead of as each packet is received.
- */
-#undef OFFLINE_SAMPLE
-
 /*
  *      The list of packet types we will receive (as opposed to discard)
  *      and the routines to invoke.
@@ -159,11 +147,6 @@ static DEFINE_SPINLOCK(ptype_lock);
 static struct list_head ptype_base[16]; /* 16 way hashed list */
 static struct list_head ptype_all;              /* Taps */
 
-#ifdef OFFLINE_SAMPLE
-static void sample_queue(unsigned long dummy);
-static struct timer_list samp_timer = TIMER_INITIALIZER(sample_queue, 0, 0);
-#endif
-
 /*
  * The @dev_base list is protected by @dev_base_lock and the rtln
  * semaphore.
@@ -215,7 +198,7 @@ static struct notifier_block *netdev_chain;
  *      Device drivers call our routines to queue packets here. We empty the
  *      queue in the local softnet handler.
  */
-DEFINE_PER_CPU(struct softnet_data, softnet_data) = { 0, };
+DEFINE_PER_CPU(struct softnet_data, softnet_data) = { NULL };
 
 #ifdef CONFIG_SYSFS
 extern int netdev_sysfs_init(void);
@@ -761,6 +744,18 @@ int dev_change_name(struct net_device *dev, char *newname)
 }
 
 /**
+ *      netdev_features_change - device changes fatures
+ *      @dev: device to cause notification
+ *
+ *      Called to indicate a device has changed features.
+ */
+void netdev_features_change(struct net_device *dev)
+{
+        notifier_call_chain(&netdev_chain, NETDEV_FEAT_CHANGE, dev);
+}
+EXPORT_SYMBOL(netdev_features_change);
+
+/**
  *      netdev_state_change - device changes state
  *      @dev: device to cause notification
  *
@@ -1351,71 +1346,13 @@ out:
                         Receiver routines
   =======================================================================*/
 
-int netdev_max_backlog = 300;
+int netdev_max_backlog = 1000;
+int netdev_budget = 300;
 int weight_p = 64;            /* old backlog weight */
-/* These numbers are selected based on intuition and some
- * experimentatiom, if you have more scientific way of doing this
- * please go ahead and fix things.
- */
-int no_cong_thresh = 10;
-int no_cong = 20;
-int lo_cong = 100;
-int mod_cong = 290;
 
 DEFINE_PER_CPU(struct netif_rx_stats, netdev_rx_stat) = { 0, };
 
 
-static void get_sample_stats(int cpu)
-{
-#ifdef RAND_LIE
-        unsigned long rd;
-        int rq;
-#endif
-        struct softnet_data *sd = &per_cpu(softnet_data, cpu);
-        int blog = sd->input_pkt_queue.qlen;
-        int avg_blog = sd->avg_blog;
-
-        avg_blog = (avg_blog >> 1) + (blog >> 1);
-
-        if (avg_blog > mod_cong) {
-                /* Above moderate congestion levels. */
-                sd->cng_level = NET_RX_CN_HIGH;
-#ifdef RAND_LIE
-                rd = net_random();
-                rq = rd % netdev_max_backlog;
-                if (rq < avg_blog) /* unlucky bastard */
-                        sd->cng_level = NET_RX_DROP;
-#endif
-        } else if (avg_blog > lo_cong) {
-                sd->cng_level = NET_RX_CN_MOD;
-#ifdef RAND_LIE
-                rd = net_random();
-                rq = rd % netdev_max_backlog;
-                        if (rq < avg_blog) /* unlucky bastard */
-                                sd->cng_level = NET_RX_CN_HIGH;
-#endif
-        } else if (avg_blog > no_cong)
-                sd->cng_level = NET_RX_CN_LOW;
-        else  /* no congestion */
-                sd->cng_level = NET_RX_SUCCESS;
-
-        sd->avg_blog = avg_blog;
-}
-
-#ifdef OFFLINE_SAMPLE
-static void sample_queue(unsigned long dummy)
-{
-/* 10 ms 0r 1ms -- i don't care -- JHS */
-        int next_tick = 1;
-        int cpu = smp_processor_id();
-
-        get_sample_stats(cpu);
-        next_tick += jiffies;
-        mod_timer(&samp_timer, next_tick);
-}
-#endif
-
-
 /**
  *      netif_rx        -       post buffer to the network code
  *      @skb: buffer to post
@@ -1436,7 +1373,6 @@ static void sample_queue(unsigned long dummy)
 
 int netif_rx(struct sk_buff *skb)
 {
-        int this_cpu;
         struct softnet_data *queue;
         unsigned long flags;
 
@@ -1452,38 +1388,22 @@ int netif_rx(struct sk_buff *skb)
          * short when CPU is congested, but is still operating.
          */
         local_irq_save(flags);
-        this_cpu = smp_processor_id();
         queue = &__get_cpu_var(softnet_data);
 
         __get_cpu_var(netdev_rx_stat).total++;
         if (queue->input_pkt_queue.qlen <= netdev_max_backlog) {
                 if (queue->input_pkt_queue.qlen) {
-                        if (queue->throttle)
-                                goto drop;
-
 enqueue:
                         dev_hold(skb->dev);
                         __skb_queue_tail(&queue->input_pkt_queue, skb);
-#ifndef OFFLINE_SAMPLE
-                        get_sample_stats(this_cpu);
-#endif
                         local_irq_restore(flags);
-                        return queue->cng_level;
+                        return NET_RX_SUCCESS;
                 }
 
-                if (queue->throttle)
-                        queue->throttle = 0;
-
                 netif_rx_schedule(&queue->backlog_dev);
                 goto enqueue;
         }
 
-        if (!queue->throttle) {
-                queue->throttle = 1;
-                __get_cpu_var(netdev_rx_stat).throttled++;
-        }
-
-drop:
         __get_cpu_var(netdev_rx_stat).dropped++;
         local_irq_restore(flags);
 
@@ -1732,6 +1652,7 @@ static int process_backlog(struct net_device *backlog_dev, int *budget)
         struct softnet_data *queue = &__get_cpu_var(softnet_data);
         unsigned long start_time = jiffies;
 
+        backlog_dev->weight = weight_p;
         for (;;) {
                 struct sk_buff *skb;
                 struct net_device *dev;
@@ -1767,8 +1688,6 @@ job_done:
         smp_mb__before_clear_bit();
         netif_poll_enable(backlog_dev);
 
-        if (queue->throttle)
-                queue->throttle = 0;
         local_irq_enable();
         return 0;
 }
@@ -1777,8 +1696,7 @@ static void net_rx_action(struct softirq_action *h)
 {
         struct softnet_data *queue = &__get_cpu_var(softnet_data);
         unsigned long start_time = jiffies;
-        int budget = netdev_max_backlog;
-
+        int budget = netdev_budget;
         
         local_irq_disable();
 
@@ -2042,15 +1960,9 @@ static int softnet_seq_show(struct seq_file *seq, void *v)
         struct netif_rx_stats *s = v;
 
         seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
-                   s->total, s->dropped, s->time_squeeze, s->throttled,
-                   s->fastroute_hit, s->fastroute_success, s->fastroute_defer,
-                   s->fastroute_deferred_out,
-#if 0
-                   s->fastroute_latency_reduction
-#else
-                   s->cpu_collision
-#endif
-                  );
+                   s->total, s->dropped, s->time_squeeze, 0,
+                   0, 0, 0, 0, /* was fastroute */
+                   s->cpu_collision );
         return 0;
 }
 
@@ -3292,9 +3204,6 @@ static int __init net_dev_init(void)
 
                 queue = &per_cpu(softnet_data, i);
                 skb_queue_head_init(&queue->input_pkt_queue);
-                queue->throttle = 0;
-                queue->cng_level = 0;
-                queue->avg_blog = 10; /* arbitrary non-zero */
                 queue->completion_queue = NULL;
                 INIT_LIST_HEAD(&queue->poll_list);
                 set_bit(__LINK_STATE_START, &queue->backlog_dev.state);
@@ -3303,11 +3212,6 @@ static int __init net_dev_init(void)
                 atomic_set(&queue->backlog_dev.refcnt, 1);
         }
 
-#ifdef OFFLINE_SAMPLE
-        samp_timer.expires = jiffies + (10 * HZ);
-        add_timer(&samp_timer);
-#endif
-
         dev_boot_phase = 0;
 
         open_softirq(NET_TX_SOFTIRQ, net_tx_action, NULL);
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index f05fde97c43d..a3eeb88e1c81 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -29,7 +29,7 @@ u32 ethtool_op_get_link(struct net_device *dev)
 
 u32 ethtool_op_get_tx_csum(struct net_device *dev)
 {
-        return (dev->features & NETIF_F_IP_CSUM) != 0;
+        return (dev->features & (NETIF_F_IP_CSUM | NETIF_F_HW_CSUM)) != 0;
 }
 
 int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
@@ -42,6 +42,15 @@ int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
         return 0;
 }
 
+int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data)
+{
+        if (data)
+                dev->features |= NETIF_F_HW_CSUM;
+        else
+                dev->features &= ~NETIF_F_HW_CSUM;
+
+        return 0;
+}
 u32 ethtool_op_get_sg(struct net_device *dev)
 {
         return (dev->features & NETIF_F_SG) != 0;
@@ -347,7 +356,7 @@ static int ethtool_set_coalesce(struct net_device *dev, void __user *useraddr)
 {
         struct ethtool_coalesce coalesce;
 
-        if (!dev->ethtool_ops->get_coalesce)
+        if (!dev->ethtool_ops->set_coalesce)
                 return -EOPNOTSUPP;
 
         if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
@@ -682,6 +691,7 @@ int dev_ethtool(struct ifreq *ifr)
         void __user *useraddr = ifr->ifr_data;
         u32 ethcmd;
         int rc;
+        unsigned long old_features;
 
         /*
          * XXX: This can be pushed down into the ethtool_* handlers that
@@ -703,6 +713,8 @@ int dev_ethtool(struct ifreq *ifr)
                 if ((rc = dev->ethtool_ops->begin(dev)) < 0)
                         return rc;
 
+        old_features = dev->features;
+
         switch (ethcmd) {
         case ETHTOOL_GSET:
                 rc = ethtool_get_settings(dev, useraddr);
@@ -712,7 +724,6 @@ int dev_ethtool(struct ifreq *ifr)
                 break;
         case ETHTOOL_GDRVINFO:
                 rc = ethtool_get_drvinfo(dev, useraddr);
-
                 break;
         case ETHTOOL_GREGS:
                 rc = ethtool_get_regs(dev, useraddr);
@@ -801,6 +812,10 @@ int dev_ethtool(struct ifreq *ifr)
         
         if(dev->ethtool_ops->complete)
                 dev->ethtool_ops->complete(dev);
+
+        if (old_features != dev->features)
+                netdev_features_change(dev);
+
         return rc;
 
  ioctl:
@@ -817,3 +832,4 @@ EXPORT_SYMBOL(ethtool_op_get_tx_csum);
 EXPORT_SYMBOL(ethtool_op_set_sg);
 EXPORT_SYMBOL(ethtool_op_set_tso);
 EXPORT_SYMBOL(ethtool_op_set_tx_csum);
+EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 43bdc521e20d..851eb927ed97 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -32,6 +32,7 @@
 #include <net/sock.h>
 #include <linux/rtnetlink.h>
 #include <linux/random.h>
+#include <linux/string.h>
 
 #define NEIGH_DEBUG 1
 
@@ -1276,9 +1277,14 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
                 INIT_RCU_HEAD(&p->rcu_head);
                 p->reachable_time =
                                 neigh_rand_reach_time(p->base_reachable_time);
-                if (dev && dev->neigh_setup && dev->neigh_setup(dev, p)) {
-                        kfree(p);
-                        return NULL;
+                if (dev) {
+                        if (dev->neigh_setup && dev->neigh_setup(dev, p)) {
+                                kfree(p);
+                                return NULL;
+                        }
+
+                        dev_hold(dev);
+                        p->dev = dev;
                 }
                 p->sysctl_table = NULL;
                 write_lock_bh(&tbl->lock);
@@ -1309,6 +1315,8 @@ void neigh_parms_release(struct neigh_table *tbl, struct neigh_parms *parms)
                         *p = parms->next;
                         parms->dead = 1;
                         write_unlock_bh(&tbl->lock);
+                        if (parms->dev)
+                                dev_put(parms->dev);
                         call_rcu(&parms->rcu_head, neigh_rcu_free_parms);
                         return;
                 }
@@ -1546,20 +1554,323 @@ out:
         return err;
 }
 
+static int neightbl_fill_parms(struct sk_buff *skb, struct neigh_parms *parms)
+{
+        struct rtattr *nest = NULL;
+        
+        nest = RTA_NEST(skb, NDTA_PARMS);
+
+        if (parms->dev)
+                RTA_PUT_U32(skb, NDTPA_IFINDEX, parms->dev->ifindex);
+
+        RTA_PUT_U32(skb, NDTPA_REFCNT, atomic_read(&parms->refcnt));
+        RTA_PUT_U32(skb, NDTPA_QUEUE_LEN, parms->queue_len);
+        RTA_PUT_U32(skb, NDTPA_PROXY_QLEN, parms->proxy_qlen);
+        RTA_PUT_U32(skb, NDTPA_APP_PROBES, parms->app_probes);
+        RTA_PUT_U32(skb, NDTPA_UCAST_PROBES, parms->ucast_probes);
+        RTA_PUT_U32(skb, NDTPA_MCAST_PROBES, parms->mcast_probes);
+        RTA_PUT_MSECS(skb, NDTPA_REACHABLE_TIME, parms->reachable_time);
+        RTA_PUT_MSECS(skb, NDTPA_BASE_REACHABLE_TIME,
+                      parms->base_reachable_time);
+        RTA_PUT_MSECS(skb, NDTPA_GC_STALETIME, parms->gc_staletime);
+        RTA_PUT_MSECS(skb, NDTPA_DELAY_PROBE_TIME, parms->delay_probe_time);
+        RTA_PUT_MSECS(skb, NDTPA_RETRANS_TIME, parms->retrans_time);
+        RTA_PUT_MSECS(skb, NDTPA_ANYCAST_DELAY, parms->anycast_delay);
+        RTA_PUT_MSECS(skb, NDTPA_PROXY_DELAY, parms->proxy_delay);
+        RTA_PUT_MSECS(skb, NDTPA_LOCKTIME, parms->locktime);
+
+        return RTA_NEST_END(skb, nest);
+
+rtattr_failure:
+        return RTA_NEST_CANCEL(skb, nest);
+}
+
+static int neightbl_fill_info(struct neigh_table *tbl, struct sk_buff *skb,
+                              struct netlink_callback *cb)
+{
+        struct nlmsghdr *nlh;
+        struct ndtmsg *ndtmsg;
+
+        nlh = NLMSG_NEW_ANSWER(skb, cb, RTM_NEWNEIGHTBL, sizeof(struct ndtmsg),
+                               NLM_F_MULTI);
+
+        ndtmsg = NLMSG_DATA(nlh);
+
+        read_lock_bh(&tbl->lock);
+        ndtmsg->ndtm_family = tbl->family;
+
+        RTA_PUT_STRING(skb, NDTA_NAME, tbl->id);
+        RTA_PUT_MSECS(skb, NDTA_GC_INTERVAL, tbl->gc_interval);
+        RTA_PUT_U32(skb, NDTA_THRESH1, tbl->gc_thresh1);
+        RTA_PUT_U32(skb, NDTA_THRESH2, tbl->gc_thresh2);
+        RTA_PUT_U32(skb, NDTA_THRESH3, tbl->gc_thresh3);
+
+        {
+                unsigned long now = jiffies;
+                unsigned int flush_delta = now - tbl->last_flush;
+                unsigned int rand_delta = now - tbl->last_rand;
+
+                struct ndt_config ndc = {
+                        .ndtc_key_len           = tbl->key_len,
+                        .ndtc_entry_size        = tbl->entry_size,
+                        .ndtc_entries           = atomic_read(&tbl->entries),
+                        .ndtc_last_flush        = jiffies_to_msecs(flush_delta),
+                        .ndtc_last_rand         = jiffies_to_msecs(rand_delta),
+                        .ndtc_hash_rnd          = tbl->hash_rnd,
+                        .ndtc_hash_mask         = tbl->hash_mask,
+                        .ndtc_hash_chain_gc     = tbl->hash_chain_gc,
+                        .ndtc_proxy_qlen        = tbl->proxy_queue.qlen,
+                };
+
+                RTA_PUT(skb, NDTA_CONFIG, sizeof(ndc), &ndc);
+        }
+
+        {
+                int cpu;
+                struct ndt_stats ndst;
+
+                memset(&ndst, 0, sizeof(ndst));
+
+                for (cpu = 0; cpu < NR_CPUS; cpu++) {
+                        struct neigh_statistics *st;
+
+                        if (!cpu_possible(cpu))
+                                continue;
+
+                        st = per_cpu_ptr(tbl->stats, cpu);
+                        ndst.ndts_allocs                += st->allocs;
+                        ndst.ndts_destroys              += st->destroys;
+                        ndst.ndts_hash_grows            += st->hash_grows;
+                        ndst.ndts_res_failed            += st->res_failed;
+                        ndst.ndts_lookups               += st->lookups;
+                        ndst.ndts_hits                  += st->hits;
+                        ndst.ndts_rcv_probes_mcast      += st->rcv_probes_mcast;
+                        ndst.ndts_rcv_probes_ucast      += st->rcv_probes_ucast;
+                        ndst.ndts_periodic_gc_runs      += st->periodic_gc_runs;
+                        ndst.ndts_forced_gc_runs        += st->forced_gc_runs;
+                }
+
+                RTA_PUT(skb, NDTA_STATS, sizeof(ndst), &ndst);
+        }
+
+        BUG_ON(tbl->parms.dev);
+        if (neightbl_fill_parms(skb, &tbl->parms) < 0)
+                goto rtattr_failure;
+
+        read_unlock_bh(&tbl->lock);
+        return NLMSG_END(skb, nlh);
+
+rtattr_failure:
+        read_unlock_bh(&tbl->lock);
+        return NLMSG_CANCEL(skb, nlh);
+ 
+nlmsg_failure:
+        return -1;
+}
+
+static int neightbl_fill_param_info(struct neigh_table *tbl,
+                                    struct neigh_parms *parms,
+                                    struct sk_buff *skb,
+                                    struct netlink_callback *cb)
+{
+        struct ndtmsg *ndtmsg;
+        struct nlmsghdr *nlh;
+
+        nlh = NLMSG_NEW_ANSWER(skb, cb, RTM_NEWNEIGHTBL, sizeof(struct ndtmsg),
+                               NLM_F_MULTI);
+
+        ndtmsg = NLMSG_DATA(nlh);
+
+        read_lock_bh(&tbl->lock);
+        ndtmsg->ndtm_family = tbl->family;
+        RTA_PUT_STRING(skb, NDTA_NAME, tbl->id);
+
+        if (neightbl_fill_parms(skb, parms) < 0)
+                goto rtattr_failure;
+
+        read_unlock_bh(&tbl->lock);
+        return NLMSG_END(skb, nlh);
+
+rtattr_failure:
+        read_unlock_bh(&tbl->lock);
+        return NLMSG_CANCEL(skb, nlh);
+
+nlmsg_failure:
+        return -1;
+}
+ 
+static inline struct neigh_parms *lookup_neigh_params(struct neigh_table *tbl,
+                                                      int ifindex)
+{
+        struct neigh_parms *p;
+        
+        for (p = &tbl->parms; p; p = p->next)
+                if ((p->dev && p->dev->ifindex == ifindex) ||
+                    (!p->dev && !ifindex))
+                        return p;
+
+        return NULL;
+}
+
+int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+{
+        struct neigh_table *tbl;
+        struct ndtmsg *ndtmsg = NLMSG_DATA(nlh);
+        struct rtattr **tb = arg;
+        int err = -EINVAL;
+
+        if (!tb[NDTA_NAME - 1] || !RTA_PAYLOAD(tb[NDTA_NAME - 1]))
+                return -EINVAL;
+
+        read_lock(&neigh_tbl_lock);
+        for (tbl = neigh_tables; tbl; tbl = tbl->next) {
+                if (ndtmsg->ndtm_family && tbl->family != ndtmsg->ndtm_family)
+                        continue;
+
+                if (!rtattr_strcmp(tb[NDTA_NAME - 1], tbl->id))
+                        break;
+        }
+
+        if (tbl == NULL) {
+                err = -ENOENT;
+                goto errout;
+        }
+
+        /* 
+         * We acquire tbl->lock to be nice to the periodic timers and
+         * make sure they always see a consistent set of values.
+         */
+        write_lock_bh(&tbl->lock);
+
+        if (tb[NDTA_THRESH1 - 1])
+                tbl->gc_thresh1 = RTA_GET_U32(tb[NDTA_THRESH1 - 1]);
+
+        if (tb[NDTA_THRESH2 - 1])
+                tbl->gc_thresh2 = RTA_GET_U32(tb[NDTA_THRESH2 - 1]);
+
+        if (tb[NDTA_THRESH3 - 1])
+                tbl->gc_thresh3 = RTA_GET_U32(tb[NDTA_THRESH3 - 1]);
+
+        if (tb[NDTA_GC_INTERVAL - 1])
+                tbl->gc_interval = RTA_GET_MSECS(tb[NDTA_GC_INTERVAL - 1]);
+
+        if (tb[NDTA_PARMS - 1]) {
+                struct rtattr *tbp[NDTPA_MAX];
+                struct neigh_parms *p;
+                u32 ifindex = 0;
+
+                if (rtattr_parse_nested(tbp, NDTPA_MAX, tb[NDTA_PARMS - 1]) < 0)
+                        goto rtattr_failure;
+
+                if (tbp[NDTPA_IFINDEX - 1])
+                        ifindex = RTA_GET_U32(tbp[NDTPA_IFINDEX - 1]);
+
+                p = lookup_neigh_params(tbl, ifindex);
+                if (p == NULL) {
+                        err = -ENOENT;
+                        goto rtattr_failure;
+                }
+        
+                if (tbp[NDTPA_QUEUE_LEN - 1])
+                        p->queue_len = RTA_GET_U32(tbp[NDTPA_QUEUE_LEN - 1]);
+
+                if (tbp[NDTPA_PROXY_QLEN - 1])
+                        p->proxy_qlen = RTA_GET_U32(tbp[NDTPA_PROXY_QLEN - 1]);
+
+                if (tbp[NDTPA_APP_PROBES - 1])
+                        p->app_probes = RTA_GET_U32(tbp[NDTPA_APP_PROBES - 1]);
+
+                if (tbp[NDTPA_UCAST_PROBES - 1])
+                        p->ucast_probes =
+                           RTA_GET_U32(tbp[NDTPA_UCAST_PROBES - 1]);
+
+                if (tbp[NDTPA_MCAST_PROBES - 1])
+                        p->mcast_probes =
+                           RTA_GET_U32(tbp[NDTPA_MCAST_PROBES - 1]);
+
+                if (tbp[NDTPA_BASE_REACHABLE_TIME - 1])
+                        p->base_reachable_time =
+                           RTA_GET_MSECS(tbp[NDTPA_BASE_REACHABLE_TIME - 1]);
+
+                if (tbp[NDTPA_GC_STALETIME - 1])
+                        p->gc_staletime =
+                           RTA_GET_MSECS(tbp[NDTPA_GC_STALETIME - 1]);
+
+                if (tbp[NDTPA_DELAY_PROBE_TIME - 1])
+                        p->delay_probe_time =
+                           RTA_GET_MSECS(tbp[NDTPA_DELAY_PROBE_TIME - 1]);
+
+                if (tbp[NDTPA_RETRANS_TIME - 1])
+                        p->retrans_time =
+                           RTA_GET_MSECS(tbp[NDTPA_RETRANS_TIME - 1]);
+
+                if (tbp[NDTPA_ANYCAST_DELAY - 1])
+                        p->anycast_delay =
+                           RTA_GET_MSECS(tbp[NDTPA_ANYCAST_DELAY - 1]);
+
+                if (tbp[NDTPA_PROXY_DELAY - 1])
+                        p->proxy_delay =
+                           RTA_GET_MSECS(tbp[NDTPA_PROXY_DELAY - 1]);
+
+                if (tbp[NDTPA_LOCKTIME - 1])
+                        p->locktime = RTA_GET_MSECS(tbp[NDTPA_LOCKTIME - 1]);
+        }
+
+        err = 0;
+
+rtattr_failure:
+        write_unlock_bh(&tbl->lock);
+errout:
+        read_unlock(&neigh_tbl_lock);
+        return err;
+}
+
+int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
+{
+        int idx, family;
+        int s_idx = cb->args[0];
+        struct neigh_table *tbl;
+
+        family = ((struct rtgenmsg *)NLMSG_DATA(cb->nlh))->rtgen_family;
+
+        read_lock(&neigh_tbl_lock);
+        for (tbl = neigh_tables, idx = 0; tbl; tbl = tbl->next) {
+                struct neigh_parms *p;
+
+                if (idx < s_idx || (family && tbl->family != family))
+                        continue;
+
+                if (neightbl_fill_info(tbl, skb, cb) <= 0)
+                        break;
+
+                for (++idx, p = tbl->parms.next; p; p = p->next, idx++) {
+                        if (idx < s_idx)
+                                continue;
+
+                        if (neightbl_fill_param_info(tbl, p, skb, cb) <= 0)
+                                goto out;
+                }
+
+        }
+out:
+        read_unlock(&neigh_tbl_lock);
+        cb->args[0] = idx;
+
+        return skb->len;
+}
 
 static int neigh_fill_info(struct sk_buff *skb, struct neighbour *n,
-                           u32 pid, u32 seq, int event)
+                           u32 pid, u32 seq, int event, unsigned int flags)
 {
         unsigned long now = jiffies;
         unsigned char *b = skb->tail;
         struct nda_cacheinfo ci;
         int locked = 0;
         u32 probes;
-        struct nlmsghdr *nlh = NLMSG_PUT(skb, pid, seq, event,
-                                         sizeof(struct ndmsg));
+        struct nlmsghdr *nlh = NLMSG_NEW(skb, pid, seq, event,
+                                         sizeof(struct ndmsg), flags);
         struct ndmsg *ndm = NLMSG_DATA(nlh);
 
-        nlh->nlmsg_flags = pid ? NLM_F_MULTI : 0;
         ndm->ndm_family  = n->ops->family;
         ndm->ndm_flags   = n->flags;
         ndm->ndm_type    = n->type;
@@ -1609,7 +1920,8 @@ static int neigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
                                 continue;
                         if (neigh_fill_info(skb, n, NETLINK_CB(cb->skb).pid,
                                             cb->nlh->nlmsg_seq,
-                                            RTM_NEWNEIGH) <= 0) {
+                                            RTM_NEWNEIGH,
+                                            NLM_F_MULTI) <= 0) {
                                 read_unlock_bh(&tbl->lock);
                                 rc = -1;
                                 goto out;
@@ -2018,7 +2330,7 @@ void neigh_app_ns(struct neighbour *n)
         if (!skb)
                 return;
 
-        if (neigh_fill_info(skb, n, 0, 0, RTM_GETNEIGH) < 0) {
+        if (neigh_fill_info(skb, n, 0, 0, RTM_GETNEIGH, 0) < 0) {
                 kfree_skb(skb);
                 return;
         }
@@ -2037,7 +2349,7 @@ static void neigh_app_notify(struct neighbour *n)
         if (!skb)
                 return;
 
-        if (neigh_fill_info(skb, n, 0, 0, RTM_NEWNEIGH) < 0) {
+        if (neigh_fill_info(skb, n, 0, 0, RTM_NEWNEIGH, 0) < 0) {
                 kfree_skb(skb);
                 return;
         }
@@ -2281,7 +2593,7 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
                 t->neigh_vars[17].extra1 = dev;
         }
 
-        dev_name = net_sysctl_strdup(dev_name_source);
+        dev_name = kstrdup(dev_name_source, GFP_KERNEL);
         if (!dev_name) {
                 err = -ENOBUFS;
                 goto free;
@@ -2352,6 +2664,8 @@ EXPORT_SYMBOL(neigh_update);
 EXPORT_SYMBOL(neigh_update_hhs);
 EXPORT_SYMBOL(pneigh_enqueue);
 EXPORT_SYMBOL(pneigh_lookup);
+EXPORT_SYMBOL(neightbl_dump_info);
+EXPORT_SYMBOL(neightbl_set);
 
 #ifdef CONFIG_ARPD
 EXPORT_SYMBOL(neigh_app_ns);
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 060f703659e8..e2137f3e489d 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -21,6 +21,7 @@
 #define to_net_dev(class) container_of(class, struct net_device, class_dev)
 
 static const char fmt_hex[] = "%#x\n";
+static const char fmt_long_hex[] = "%#lx\n";
 static const char fmt_dec[] = "%d\n";
 static const char fmt_ulong[] = "%lu\n";
 
@@ -91,7 +92,7 @@ static CLASS_DEVICE_ATTR(field, S_IRUGO, show_##field, NULL)		\
 NETDEVICE_ATTR(addr_len, fmt_dec);
 NETDEVICE_ATTR(iflink, fmt_dec);
 NETDEVICE_ATTR(ifindex, fmt_dec);
-NETDEVICE_ATTR(features, fmt_hex);
+NETDEVICE_ATTR(features, fmt_long_hex);
 NETDEVICE_ATTR(type, fmt_dec);
 
 /* use same locking rules as GIFHWADDR ioctl's */
@@ -184,6 +185,22 @@ static ssize_t store_tx_queue_len(struct class_device *dev, const char *buf, siz
 static CLASS_DEVICE_ATTR(tx_queue_len, S_IRUGO | S_IWUSR, show_tx_queue_len, 
                          store_tx_queue_len);
 
+NETDEVICE_SHOW(weight, fmt_dec);
+
+static int change_weight(struct net_device *net, unsigned long new_weight)
+{
+        net->weight = new_weight;
+        return 0;
+}
+
+static ssize_t store_weight(struct class_device *dev, const char *buf, size_t len)
+{
+        return netdev_store(dev, buf, len, change_weight);
+}
+
+static CLASS_DEVICE_ATTR(weight, S_IRUGO | S_IWUSR, show_weight, 
+                         store_weight);
+
 
 static struct class_device_attribute *net_class_attributes[] = {
         &class_device_attr_ifindex,
@@ -193,6 +210,7 @@ static struct class_device_attribute *net_class_attributes[] = {
         &class_device_attr_features,
         &class_device_attr_mtu,
         &class_device_attr_flags,
+        &class_device_attr_weight,
         &class_device_attr_type,
         &class_device_attr_address,
         &class_device_attr_broadcast,
diff --git a/net/core/netfilter.c b/net/core/netfilter.c
index 22a8f127c4aa..076c156d5eda 100644
--- a/net/core/netfilter.c
+++ b/net/core/netfilter.c
@@ -141,136 +141,6 @@ void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
         up(&nf_sockopt_mutex);
 }
 
-#ifdef CONFIG_NETFILTER_DEBUG
-#include <net/ip.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4.h>
-
-static void debug_print_hooks_ip(unsigned int nf_debug)
-{
-        if (nf_debug & (1 << NF_IP_PRE_ROUTING)) {
-                printk("PRE_ROUTING ");
-                nf_debug ^= (1 << NF_IP_PRE_ROUTING);
-        }
-        if (nf_debug & (1 << NF_IP_LOCAL_IN)) {
-                printk("LOCAL_IN ");
-                nf_debug ^= (1 << NF_IP_LOCAL_IN);
-        }
-        if (nf_debug & (1 << NF_IP_FORWARD)) {
-                printk("FORWARD ");
-                nf_debug ^= (1 << NF_IP_FORWARD);
-        }
-        if (nf_debug & (1 << NF_IP_LOCAL_OUT)) {
-                printk("LOCAL_OUT ");
-                nf_debug ^= (1 << NF_IP_LOCAL_OUT);
-        }
-        if (nf_debug & (1 << NF_IP_POST_ROUTING)) {
-                printk("POST_ROUTING ");
-                nf_debug ^= (1 << NF_IP_POST_ROUTING);
-        }
-        if (nf_debug)
-                printk("Crap bits: 0x%04X", nf_debug);
-        printk("\n");
-}
-
-static void nf_dump_skb(int pf, struct sk_buff *skb)
-{
-        printk("skb: pf=%i %s dev=%s len=%u\n", 
-               pf,
-               skb->sk ? "(owned)" : "(unowned)",
-               skb->dev ? skb->dev->name : "(no dev)",
-               skb->len);
-        switch (pf) {
-        case PF_INET: {
-                const struct iphdr *ip = skb->nh.iph;
-                __u32 *opt = (__u32 *) (ip + 1);
-                int opti;
-                __u16 src_port = 0, dst_port = 0;
-
-                if (ip->protocol == IPPROTO_TCP
-                    || ip->protocol == IPPROTO_UDP) {
-                        struct tcphdr *tcp=(struct tcphdr *)((__u32 *)ip+ip->ihl);
-                        src_port = ntohs(tcp->source);
-                        dst_port = ntohs(tcp->dest);
-                }
-        
-                printk("PROTO=%d %u.%u.%u.%u:%hu %u.%u.%u.%u:%hu"
-                       " L=%hu S=0x%2.2hX I=%hu F=0x%4.4hX T=%hu",
-                       ip->protocol, NIPQUAD(ip->saddr),
-                       src_port, NIPQUAD(ip->daddr),
-                       dst_port,
-                       ntohs(ip->tot_len), ip->tos, ntohs(ip->id),
-                       ntohs(ip->frag_off), ip->ttl);
-
-                for (opti = 0; opti < (ip->ihl - sizeof(struct iphdr) / 4); opti++)
-                        printk(" O=0x%8.8X", *opt++);
-                printk("\n");
-        }
-        }
-}
-
-void nf_debug_ip_local_deliver(struct sk_buff *skb)
-{
-        /* If it's a loopback packet, it must have come through
-         * NF_IP_LOCAL_OUT, NF_IP_RAW_INPUT, NF_IP_PRE_ROUTING and
-         * NF_IP_LOCAL_IN.  Otherwise, must have gone through
-         * NF_IP_RAW_INPUT and NF_IP_PRE_ROUTING.  */
-        if (!skb->dev) {
-                printk("ip_local_deliver: skb->dev is NULL.\n");
-        } else {
-                if (skb->nf_debug != ((1<<NF_IP_PRE_ROUTING)
-                                      | (1<<NF_IP_LOCAL_IN))) {
-                        printk("ip_local_deliver: bad skb: ");
-                        debug_print_hooks_ip(skb->nf_debug);
-                        nf_dump_skb(PF_INET, skb);
-                }
-        }
-}
-
-void nf_debug_ip_loopback_xmit(struct sk_buff *newskb)
-{
-        if (newskb->nf_debug != ((1 << NF_IP_LOCAL_OUT)
-                                 | (1 << NF_IP_POST_ROUTING))) {
-                printk("ip_dev_loopback_xmit: bad owned skb = %p: ", 
-                       newskb);
-                debug_print_hooks_ip(newskb->nf_debug);
-                nf_dump_skb(PF_INET, newskb);
-        }
-}
-
-void nf_debug_ip_finish_output2(struct sk_buff *skb)
-{
-        /* If it's owned, it must have gone through the
-         * NF_IP_LOCAL_OUT and NF_IP_POST_ROUTING.
-         * Otherwise, must have gone through
-         * NF_IP_PRE_ROUTING, NF_IP_FORWARD and NF_IP_POST_ROUTING.
-         */
-        if (skb->sk) {
-                if (skb->nf_debug != ((1 << NF_IP_LOCAL_OUT)
-                                      | (1 << NF_IP_POST_ROUTING))) {
-                        printk("ip_finish_output: bad owned skb = %p: ", skb);
-                        debug_print_hooks_ip(skb->nf_debug);
-                        nf_dump_skb(PF_INET, skb);
-                }
-        } else {
-                if (skb->nf_debug != ((1 << NF_IP_PRE_ROUTING)
-                                      | (1 << NF_IP_FORWARD)
-                                      | (1 << NF_IP_POST_ROUTING))) {
-                        /* Fragments, entunnelled packets, TCP RSTs
-                           generated by ipt_REJECT will have no
-                           owners, but still may be local */
-                        if (skb->nf_debug != ((1 << NF_IP_LOCAL_OUT)
-                                              | (1 << NF_IP_POST_ROUTING))){
-                                printk("ip_finish_output:"
-                                       " bad unowned skb = %p: ",skb);
-                                debug_print_hooks_ip(skb->nf_debug);
-                                nf_dump_skb(PF_INET, skb);
-                        }
-                }
-        }
-}
-#endif /*CONFIG_NETFILTER_DEBUG*/
-
 /* Call get/setsockopt() */
 static int nf_sockopt(struct sock *sk, int pf, int val, 
                       char __user *opt, int *len, int get)
@@ -488,14 +358,6 @@ int nf_hook_slow(int pf, unsigned int hook, struct sk_buff **pskb,
         /* We may already have this, but read-locks nest anyway */
         rcu_read_lock();
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        if (unlikely((*pskb)->nf_debug & (1 << hook))) {
-                printk("nf_hook: hook %i already set.\n", hook);
-                nf_dump_skb(pf, *pskb);
-        }
-        (*pskb)->nf_debug |= (1 << hook);
-#endif
-
         elem = &nf_hooks[pf][hook];
 next_hook:
         verdict = nf_iterate(&nf_hooks[pf][hook], pskb, hook, indev,
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index a119696d5521..c327c9edadc5 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -130,19 +130,20 @@ static int checksum_udp(struct sk_buff *skb, struct udphdr *uh,
  */
 static void poll_napi(struct netpoll *np)
 {
+        struct netpoll_info *npinfo = np->dev->npinfo;
         int budget = 16;
 
         if (test_bit(__LINK_STATE_RX_SCHED, &np->dev->state) &&
-            np->poll_owner != smp_processor_id() &&
-            spin_trylock(&np->poll_lock)) {
-                np->rx_flags |= NETPOLL_RX_DROP;
+            npinfo->poll_owner != smp_processor_id() &&
+            spin_trylock(&npinfo->poll_lock)) {
+                npinfo->rx_flags |= NETPOLL_RX_DROP;
                 atomic_inc(&trapped);
 
                 np->dev->poll(np->dev, &budget);
 
                 atomic_dec(&trapped);
-                np->rx_flags &= ~NETPOLL_RX_DROP;
-                spin_unlock(&np->poll_lock);
+                npinfo->rx_flags &= ~NETPOLL_RX_DROP;
+                spin_unlock(&npinfo->poll_lock);
         }
 }
 
@@ -245,6 +246,7 @@ repeat:
 static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
 {
         int status;
+        struct netpoll_info *npinfo;
 
 repeat:
         if(!np || !np->dev || !netif_running(np->dev)) {
@@ -253,8 +255,9 @@ repeat:
         }
 
         /* avoid recursion */
-        if(np->poll_owner == smp_processor_id() ||
-           np->dev->xmit_lock_owner == smp_processor_id()) {
+        npinfo = np->dev->npinfo;
+        if (npinfo->poll_owner == smp_processor_id() ||
+            np->dev->xmit_lock_owner == smp_processor_id()) {
                 if (np->drop)
                         np->drop(skb);
                 else
@@ -341,14 +344,22 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 
 static void arp_reply(struct sk_buff *skb)
 {
+        struct netpoll_info *npinfo = skb->dev->npinfo;
         struct arphdr *arp;
         unsigned char *arp_ptr;
         int size, type = ARPOP_REPLY, ptype = ETH_P_ARP;
         u32 sip, tip;
+        unsigned long flags;
         struct sk_buff *send_skb;
-        struct netpoll *np = skb->dev->np;
+        struct netpoll *np = NULL;
+
+        spin_lock_irqsave(&npinfo->rx_lock, flags);
+        if (npinfo->rx_np && npinfo->rx_np->dev == skb->dev)
+                np = npinfo->rx_np;
+        spin_unlock_irqrestore(&npinfo->rx_lock, flags);
 
-        if (!np) return;
+        if (!np)
+                return;
 
         /* No arp on this interface */
         if (skb->dev->flags & IFF_NOARP)
@@ -429,9 +440,9 @@ int __netpoll_rx(struct sk_buff *skb)
         int proto, len, ulen;
         struct iphdr *iph;
         struct udphdr *uh;
-        struct netpoll *np = skb->dev->np;
+        struct netpoll *np = skb->dev->npinfo->rx_np;
 
-        if (!np->rx_hook)
+        if (!np)
                 goto out;
         if (skb->dev->type != ARPHRD_ETHER)
                 goto out;
@@ -611,9 +622,8 @@ int netpoll_setup(struct netpoll *np)
 {
         struct net_device *ndev = NULL;
         struct in_device *in_dev;
-
-        np->poll_lock = SPIN_LOCK_UNLOCKED;
-        np->poll_owner = -1;
+        struct netpoll_info *npinfo;
+        unsigned long flags;
 
         if (np->dev_name)
                 ndev = dev_get_by_name(np->dev_name);
@@ -624,7 +634,17 @@ int netpoll_setup(struct netpoll *np)
         }
 
         np->dev = ndev;
-        ndev->np = np;
+        if (!ndev->npinfo) {
+                npinfo = kmalloc(sizeof(*npinfo), GFP_KERNEL);
+                if (!npinfo)
+                        goto release;
+
+                npinfo->rx_np = NULL;
+                npinfo->poll_lock = SPIN_LOCK_UNLOCKED;
+                npinfo->poll_owner = -1;
+                npinfo->rx_lock = SPIN_LOCK_UNLOCKED;
+        } else
+                npinfo = ndev->npinfo;
 
         if (!ndev->poll_controller) {
                 printk(KERN_ERR "%s: %s doesn't support polling, aborting.\n",
@@ -692,13 +712,20 @@ int netpoll_setup(struct netpoll *np)
                        np->name, HIPQUAD(np->local_ip));
         }
 
-        if(np->rx_hook)
-                np->rx_flags = NETPOLL_RX_ENABLED;
+        if (np->rx_hook) {
+                spin_lock_irqsave(&npinfo->rx_lock, flags);
+                npinfo->rx_flags |= NETPOLL_RX_ENABLED;
+                npinfo->rx_np = np;
+                spin_unlock_irqrestore(&npinfo->rx_lock, flags);
+        }
+        /* last thing to do is link it to the net device structure */
+        ndev->npinfo = npinfo;
 
         return 0;
 
  release:
-        ndev->np = NULL;
+        if (!ndev->npinfo)
+                kfree(npinfo);
         np->dev = NULL;
         dev_put(ndev);
         return -1;
@@ -706,9 +733,20 @@ int netpoll_setup(struct netpoll *np)
 
 void netpoll_cleanup(struct netpoll *np)
 {
-        if (np->dev)
-                np->dev->np = NULL;
-        dev_put(np->dev);
+        struct netpoll_info *npinfo;
+        unsigned long flags;
+
+        if (np->dev) {
+                npinfo = np->dev->npinfo;
+                if (npinfo && npinfo->rx_np == np) {
+                        spin_lock_irqsave(&npinfo->rx_lock, flags);
+                        npinfo->rx_np = NULL;
+                        npinfo->rx_flags &= ~NETPOLL_RX_ENABLED;
+                        spin_unlock_irqrestore(&npinfo->rx_lock, flags);
+                }
+                dev_put(np->dev);
+        }
+
         np->dev = NULL;
 }
 
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index c57b06bc79f3..975d651312dc 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -151,7 +151,7 @@
 #include <asm/timex.h>
 
 
-#define VERSION  "pktgen v2.61: Packet Generator for packet performance testing.\n"
+#define VERSION  "pktgen v2.62: Packet Generator for packet performance testing.\n"
 
 /* #define PG_DEBUG(a) a */
 #define PG_DEBUG(a) 
@@ -1921,6 +1921,11 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
         struct iphdr *iph;
         struct pktgen_hdr *pgh = NULL;
         
+        /* Update any of the values, used when we're incrementing various
+         * fields.
+         */
+        mod_cur_headers(pkt_dev);
+
         skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16, GFP_ATOMIC);
         if (!skb) {
                 sprintf(pkt_dev->result, "No memory");
@@ -1934,11 +1939,6 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
         iph = (struct iphdr *)skb_put(skb, sizeof(struct iphdr));
         udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
 
-        /* Update any of the values, used when we're incrementing various
-         * fields.
-         */
-        mod_cur_headers(pkt_dev);
-
         memcpy(eth, pkt_dev->hh, 12);
         *(u16*)&eth[12] = __constant_htons(ETH_P_IP);
 
@@ -2192,7 +2192,12 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
         int datalen;
         struct ipv6hdr *iph;
         struct pktgen_hdr *pgh = NULL;
-        
+
+        /* Update any of the values, used when we're incrementing various
+         * fields.
+         */
+        mod_cur_headers(pkt_dev);
+
         skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16, GFP_ATOMIC);
         if (!skb) {
                 sprintf(pkt_dev->result, "No memory");
@@ -2206,17 +2211,9 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
         iph = (struct ipv6hdr *)skb_put(skb, sizeof(struct ipv6hdr));
         udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
 
-
-        /* Update any of the values, used when we're incrementing various
-         * fields.
-         */
-        mod_cur_headers(pkt_dev);
-
-        
         memcpy(eth, pkt_dev->hh, 12);
         *(u16*)&eth[12] = __constant_htons(ETH_P_IPV6);
-        
-        
+
         datalen = pkt_dev->cur_pkt_size-14- 
                 sizeof(struct ipv6hdr)-sizeof(struct udphdr); /* Eth + IPh + UDPh */
 
diff --git a/net/core/request_sock.c b/net/core/request_sock.c
new file mode 100644
index 000000000000..bb55675f0685
--- /dev/null
+++ b/net/core/request_sock.c
@@ -0,0 +1,64 @@
+/*
+ * NET          Generic infrastructure for Network protocols.
+ *
+ * Authors:     Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ *              From code originally in include/net/tcp.h
+ *
+ *              This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU General Public License
+ *              as published by the Free Software Foundation; either version
+ *              2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/random.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+#include <net/request_sock.h>
+
+/*
+ * Maximum number of SYN_RECV sockets in queue per LISTEN socket.
+ * One SYN_RECV socket costs about 80bytes on a 32bit machine.
+ * It would be better to replace it with a global counter for all sockets
+ * but then some measure against one socket starving all other sockets
+ * would be needed.
+ *
+ * It was 128 by default. Experiments with real servers show, that
+ * it is absolutely not enough even at 100conn/sec. 256 cures most
+ * of problems. This value is adjusted to 128 for very small machines
+ * (<=32Mb of memory) and to 1024 on normal or better ones (>=256Mb).
+ * Further increasing requires to change hash table size.
+ */
+int sysctl_max_syn_backlog = 256;
+EXPORT_SYMBOL(sysctl_max_syn_backlog);
+
+int reqsk_queue_alloc(struct request_sock_queue *queue,
+                      const int nr_table_entries)
+{
+        const int lopt_size = sizeof(struct listen_sock) +
+                              nr_table_entries * sizeof(struct request_sock *);
+        struct listen_sock *lopt = kmalloc(lopt_size, GFP_KERNEL);
+
+        if (lopt == NULL)
+                return -ENOMEM;
+
+        memset(lopt, 0, lopt_size);
+
+        for (lopt->max_qlen_log = 6;
+             (1 << lopt->max_qlen_log) < sysctl_max_syn_backlog;
+             lopt->max_qlen_log++);
+
+        get_random_bytes(&lopt->hash_rnd, sizeof(lopt->hash_rnd));
+        rwlock_init(&queue->syn_wait_lock);
+        queue->rskq_accept_head = queue->rskq_accept_head = NULL;
+
+        write_lock_bh(&queue->syn_wait_lock);
+        queue->listen_opt = lopt;
+        write_unlock_bh(&queue->syn_wait_lock);
+
+        return 0;
+}
+
+EXPORT_SYMBOL(reqsk_queue_alloc);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 00caf4b318b2..e013d836a7ab 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -100,6 +100,7 @@ static const int rtm_min[RTM_NR_FAMILIES] =
         [RTM_FAM(RTM_NEWPREFIX)]    = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
         [RTM_FAM(RTM_GETMULTICAST)] = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
         [RTM_FAM(RTM_GETANYCAST)]   = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
+        [RTM_FAM(RTM_NEWNEIGHTBL)]  = NLMSG_LENGTH(sizeof(struct ndtmsg)),
 };
 
 static const int rta_max[RTM_NR_FAMILIES] =
@@ -113,6 +114,7 @@ static const int rta_max[RTM_NR_FAMILIES] =
         [RTM_FAM(RTM_NEWTCLASS)]    = TCA_MAX,
         [RTM_FAM(RTM_NEWTFILTER)]   = TCA_MAX,
         [RTM_FAM(RTM_NEWACTION)]    = TCAA_MAX,
+        [RTM_FAM(RTM_NEWNEIGHTBL)]  = NDTA_MAX,
 };
 
 void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data)
@@ -176,14 +178,14 @@ rtattr_failure:
 
 
 static int rtnetlink_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
-                                 int type, u32 pid, u32 seq, u32 change)
+                                 int type, u32 pid, u32 seq, u32 change, 
+                                 unsigned int flags)
 {
         struct ifinfomsg *r;
         struct nlmsghdr  *nlh;
         unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, type, sizeof(*r));
-        if (pid) nlh->nlmsg_flags |= NLM_F_MULTI;
+        nlh = NLMSG_NEW(skb, pid, seq, type, sizeof(*r), flags);
         r = NLMSG_DATA(nlh);
         r->ifi_family = AF_UNSPEC;
         r->ifi_type = dev->type;
@@ -273,7 +275,10 @@ static int rtnetlink_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *c
         for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) {
                 if (idx < s_idx)
                         continue;
-                if (rtnetlink_fill_ifinfo(skb, dev, RTM_NEWLINK, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, 0) <= 0)
+                if (rtnetlink_fill_ifinfo(skb, dev, RTM_NEWLINK,
+                                          NETLINK_CB(cb->skb).pid,
+                                          cb->nlh->nlmsg_seq, 0,
+                                          NLM_F_MULTI) <= 0)
                         break;
         }
         read_unlock(&dev_base_lock);
@@ -447,7 +452,7 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change)
         if (!skb)
                 return;
 
-        if (rtnetlink_fill_ifinfo(skb, dev, type, 0, 0, change) < 0) {
+        if (rtnetlink_fill_ifinfo(skb, dev, type, current->pid, 0, change, 0) < 0) {
                 kfree_skb(skb);
                 return;
         }
@@ -649,14 +654,16 @@ static void rtnetlink_rcv(struct sock *sk, int len)
 
 static struct rtnetlink_link link_rtnetlink_table[RTM_NR_MSGTYPES] =
 {
-        [RTM_GETLINK  - RTM_BASE] = { .dumpit = rtnetlink_dump_ifinfo },
-        [RTM_SETLINK  - RTM_BASE] = { .doit   = do_setlink            },
-        [RTM_GETADDR  - RTM_BASE] = { .dumpit = rtnetlink_dump_all    },
-        [RTM_GETROUTE - RTM_BASE] = { .dumpit = rtnetlink_dump_all    },
-        [RTM_NEWNEIGH - RTM_BASE] = { .doit   = neigh_add             },
-        [RTM_DELNEIGH - RTM_BASE] = { .doit   = neigh_delete          },
-        [RTM_GETNEIGH - RTM_BASE] = { .dumpit = neigh_dump_info       },
-        [RTM_GETRULE  - RTM_BASE] = { .dumpit = rtnetlink_dump_all    },
+        [RTM_GETLINK     - RTM_BASE] = { .dumpit = rtnetlink_dump_ifinfo },
+        [RTM_SETLINK     - RTM_BASE] = { .doit   = do_setlink            },
+        [RTM_GETADDR     - RTM_BASE] = { .dumpit = rtnetlink_dump_all    },
+        [RTM_GETROUTE    - RTM_BASE] = { .dumpit = rtnetlink_dump_all    },
+        [RTM_NEWNEIGH    - RTM_BASE] = { .doit   = neigh_add             },
+        [RTM_DELNEIGH    - RTM_BASE] = { .doit   = neigh_delete          },
+        [RTM_GETNEIGH    - RTM_BASE] = { .dumpit = neigh_dump_info       },
+        [RTM_GETRULE     - RTM_BASE] = { .dumpit = rtnetlink_dump_all    },
+        [RTM_GETNEIGHTBL - RTM_BASE] = { .dumpit = neightbl_dump_info    },
+        [RTM_SETNEIGHTBL - RTM_BASE] = { .doit   = neightbl_set          },
 };
 
 static int rtnetlink_event(struct notifier_block *this, unsigned long event, void *ptr)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index f65b3de590a9..bb73b2190ec7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -365,9 +365,6 @@ struct sk_buff *skb_clone(struct sk_buff *skb, int gfp_mask)
         C(nfct);
         nf_conntrack_get(skb->nfct);
         C(nfctinfo);
-#ifdef CONFIG_NETFILTER_DEBUG
-        C(nf_debug);
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
         C(nf_bridge);
         nf_bridge_get(skb->nf_bridge);
@@ -432,9 +429,6 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
         new->nfct       = old->nfct;
         nf_conntrack_get(old->nfct);
         new->nfctinfo   = old->nfctinfo;
-#ifdef CONFIG_NETFILTER_DEBUG
-        new->nf_debug   = old->nf_debug;
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
         new->nf_bridge  = old->nf_bridge;
         nf_bridge_get(old->nf_bridge);
@@ -1506,6 +1500,159 @@ void skb_split(struct sk_buff *skb, struct sk_buff *skb1, const u32 len)
                 skb_split_no_header(skb, skb1, len, pos);
 }
 
+/**
+ * skb_prepare_seq_read - Prepare a sequential read of skb data
+ * @skb: the buffer to read
+ * @from: lower offset of data to be read
+ * @to: upper offset of data to be read
+ * @st: state variable
+ *
+ * Initializes the specified state variable. Must be called before
+ * invoking skb_seq_read() for the first time.
+ */
+void skb_prepare_seq_read(struct sk_buff *skb, unsigned int from,
+                          unsigned int to, struct skb_seq_state *st)
+{
+        st->lower_offset = from;
+        st->upper_offset = to;
+        st->root_skb = st->cur_skb = skb;
+        st->frag_idx = st->stepped_offset = 0;
+        st->frag_data = NULL;
+}
+
+/**
+ * skb_seq_read - Sequentially read skb data
+ * @consumed: number of bytes consumed by the caller so far
+ * @data: destination pointer for data to be returned
+ * @st: state variable
+ *
+ * Reads a block of skb data at &consumed relative to the
+ * lower offset specified to skb_prepare_seq_read(). Assigns
+ * the head of the data block to &data and returns the length
+ * of the block or 0 if the end of the skb data or the upper
+ * offset has been reached.
+ *
+ * The caller is not required to consume all of the data
+ * returned, i.e. &consumed is typically set to the number
+ * of bytes already consumed and the next call to
+ * skb_seq_read() will return the remaining part of the block.
+ *
+ * Note: The size of each block of data returned can be arbitary,
+ *       this limitation is the cost for zerocopy seqeuental
+ *       reads of potentially non linear data.
+ *
+ * Note: Fragment lists within fragments are not implemented
+ *       at the moment, state->root_skb could be replaced with
+ *       a stack for this purpose.
+ */
+unsigned int skb_seq_read(unsigned int consumed, const u8 **data,
+                          struct skb_seq_state *st)
+{
+        unsigned int block_limit, abs_offset = consumed + st->lower_offset;
+        skb_frag_t *frag;
+
+        if (unlikely(abs_offset >= st->upper_offset))
+                return 0;
+
+next_skb:
+        block_limit = skb_headlen(st->cur_skb);
+
+        if (abs_offset < block_limit) {
+                *data = st->cur_skb->data + abs_offset;
+                return block_limit - abs_offset;
+        }
+
+        if (st->frag_idx == 0 && !st->frag_data)
+                st->stepped_offset += skb_headlen(st->cur_skb);
+
+        while (st->frag_idx < skb_shinfo(st->cur_skb)->nr_frags) {
+                frag = &skb_shinfo(st->cur_skb)->frags[st->frag_idx];
+                block_limit = frag->size + st->stepped_offset;
+
+                if (abs_offset < block_limit) {
+                        if (!st->frag_data)
+                                st->frag_data = kmap_skb_frag(frag);
+
+                        *data = (u8 *) st->frag_data + frag->page_offset +
+                                (abs_offset - st->stepped_offset);
+
+                        return block_limit - abs_offset;
+                }
+
+                if (st->frag_data) {
+                        kunmap_skb_frag(st->frag_data);
+                        st->frag_data = NULL;
+                }
+
+                st->frag_idx++;
+                st->stepped_offset += frag->size;
+        }
+
+        if (st->cur_skb->next) {
+                st->cur_skb = st->cur_skb->next;
+                st->frag_idx = 0;
+                goto next_skb;
+        } else if (st->root_skb == st->cur_skb &&
+                   skb_shinfo(st->root_skb)->frag_list) {
+                st->cur_skb = skb_shinfo(st->root_skb)->frag_list;
+                goto next_skb;
+        }
+
+        return 0;
+}
+
+/**
+ * skb_abort_seq_read - Abort a sequential read of skb data
+ * @st: state variable
+ *
+ * Must be called if skb_seq_read() was not called until it
+ * returned 0.
+ */
+void skb_abort_seq_read(struct skb_seq_state *st)
+{
+        if (st->frag_data)
+                kunmap_skb_frag(st->frag_data);
+}
+
+#define TS_SKB_CB(state)        ((struct skb_seq_state *) &((state)->cb))
+
+static unsigned int skb_ts_get_next_block(unsigned int offset, const u8 **text,
+                                          struct ts_config *conf,
+                                          struct ts_state *state)
+{
+        return skb_seq_read(offset, text, TS_SKB_CB(state));
+}
+
+static void skb_ts_finish(struct ts_config *conf, struct ts_state *state)
+{
+        skb_abort_seq_read(TS_SKB_CB(state));
+}
+
+/**
+ * skb_find_text - Find a text pattern in skb data
+ * @skb: the buffer to look in
+ * @from: search offset
+ * @to: search limit
+ * @config: textsearch configuration
+ * @state: uninitialized textsearch state variable
+ *
+ * Finds a pattern in the skb data according to the specified
+ * textsearch configuration. Use textsearch_next() to retrieve
+ * subsequent occurrences of the pattern. Returns the offset
+ * to the first occurrence or UINT_MAX if no match was found.
+ */
+unsigned int skb_find_text(struct sk_buff *skb, unsigned int from,
+                           unsigned int to, struct ts_config *config,
+                           struct ts_state *state)
+{
+        config->get_next_block = skb_ts_get_next_block;
+        config->finish = skb_ts_finish;
+
+        skb_prepare_seq_read(skb, from, to, TS_SKB_CB(state));
+
+        return textsearch_find(config, state);
+}
+
 void __init skb_init(void)
 {
         skbuff_head_cache = kmem_cache_create("skbuff_head_cache",
@@ -1544,3 +1691,7 @@ EXPORT_SYMBOL(skb_queue_tail);
 EXPORT_SYMBOL(skb_unlink);
 EXPORT_SYMBOL(skb_append);
 EXPORT_SYMBOL(skb_split);
+EXPORT_SYMBOL(skb_prepare_seq_read);
+EXPORT_SYMBOL(skb_seq_read);
+EXPORT_SYMBOL(skb_abort_seq_read);
+EXPORT_SYMBOL(skb_find_text);
diff --git a/net/core/sock.c b/net/core/sock.c
index 96e00b08698f..a6ec3ada7f9e 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -118,6 +118,7 @@
 #include <linux/netdevice.h>
 #include <net/protocol.h>
 #include <linux/skbuff.h>
+#include <net/request_sock.h>
 #include <net/sock.h>
 #include <net/xfrm.h>
 #include <linux/ipsec.h>
@@ -1363,6 +1364,7 @@ static LIST_HEAD(proto_list);
 
 int proto_register(struct proto *prot, int alloc_slab)
 {
+        char *request_sock_slab_name;
         int rc = -ENOBUFS;
 
         if (alloc_slab) {
@@ -1374,6 +1376,25 @@ int proto_register(struct proto *prot, int alloc_slab)
                                prot->name);
                         goto out;
                 }
+
+                if (prot->rsk_prot != NULL) {
+                        static const char mask[] = "request_sock_%s";
+
+                        request_sock_slab_name = kmalloc(strlen(prot->name) + sizeof(mask) - 1, GFP_KERNEL);
+                        if (request_sock_slab_name == NULL)
+                                goto out_free_sock_slab;
+
+                        sprintf(request_sock_slab_name, mask, prot->name);
+                        prot->rsk_prot->slab = kmem_cache_create(request_sock_slab_name,
+                                                                 prot->rsk_prot->obj_size, 0,
+                                                                 SLAB_HWCACHE_ALIGN, NULL, NULL);
+
+                        if (prot->rsk_prot->slab == NULL) {
+                                printk(KERN_CRIT "%s: Can't create request sock SLAB cache!\n",
+                                       prot->name);
+                                goto out_free_request_sock_slab_name;
+                        }
+                }
         }
 
         write_lock(&proto_list_lock);
@@ -1382,6 +1403,12 @@ int proto_register(struct proto *prot, int alloc_slab)
         rc = 0;
 out:
         return rc;
+out_free_request_sock_slab_name:
+        kfree(request_sock_slab_name);
+out_free_sock_slab:
+        kmem_cache_destroy(prot->slab);
+        prot->slab = NULL;
+        goto out;
 }
 
 EXPORT_SYMBOL(proto_register);
@@ -1395,6 +1422,14 @@ void proto_unregister(struct proto *prot)
                 prot->slab = NULL;
         }
 
+        if (prot->rsk_prot != NULL && prot->rsk_prot->slab != NULL) {
+                const char *name = kmem_cache_name(prot->rsk_prot->slab);
+
+                kmem_cache_destroy(prot->rsk_prot->slab);
+                kfree(name);
+                prot->rsk_prot->slab = NULL;
+        }
+
         list_del(&prot->node);
         write_unlock(&proto_list_lock);
 }
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index c8be646cb191..8f817ad9f546 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -13,12 +13,8 @@
 #ifdef CONFIG_SYSCTL
 
 extern int netdev_max_backlog;
+extern int netdev_budget;
 extern int weight_p;
-extern int no_cong_thresh;
-extern int no_cong;
-extern int lo_cong;
-extern int mod_cong;
-extern int netdev_fastroute;
 extern int net_msg_cost;
 extern int net_msg_burst;
 
@@ -35,19 +31,6 @@ extern int sysctl_somaxconn;
 extern char sysctl_divert_version[];
 #endif /* CONFIG_NET_DIVERT */
 
-/*
- * This strdup() is used for creating copies of network 
- * device names to be handed over to sysctl.
- */
- 
-char *net_sysctl_strdup(const char *s)
-{
-        char *rv = kmalloc(strlen(s)+1, GFP_KERNEL);
-        if (rv)
-                strcpy(rv, s);
-        return rv;
-}
-
 ctl_table core_table[] = {
 #ifdef CONFIG_NET
         {
@@ -99,38 +82,6 @@ ctl_table core_table[] = {
                 .proc_handler   = &proc_dointvec
         },
         {
-                .ctl_name       = NET_CORE_NO_CONG_THRESH,
-                .procname       = "no_cong_thresh",
-                .data           = &no_cong_thresh,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec
-        },
-        {
-                .ctl_name       = NET_CORE_NO_CONG,
-                .procname       = "no_cong",
-                .data           = &no_cong,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec
-        },
-        {
-                .ctl_name       = NET_CORE_LO_CONG,
-                .procname       = "lo_cong",
-                .data           = &lo_cong,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec
-        },
-        {
-                .ctl_name       = NET_CORE_MOD_CONG,
-                .procname       = "mod_cong",
-                .data           = &mod_cong,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec
-        },
-        {
                 .ctl_name       = NET_CORE_MSG_COST,
                 .procname       = "message_cost",
                 .data           = &net_msg_cost,
@@ -174,9 +125,15 @@ ctl_table core_table[] = {
                 .mode           = 0644,
                 .proc_handler   = &proc_dointvec
         },
+        {
+                .ctl_name       = NET_CORE_BUDGET,
+                .procname       = "netdev_budget",
+                .data           = &netdev_budget,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = &proc_dointvec
+        },
         { .ctl_name = 0 }
 };
 
-EXPORT_SYMBOL(net_sysctl_strdup);
-
 #endif
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index ee7bf46eb78a..00233ecbc9cb 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -716,13 +716,13 @@ static int dn_dev_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *a
 }
 
 static int dn_dev_fill_ifaddr(struct sk_buff *skb, struct dn_ifaddr *ifa,
-                                u32 pid, u32 seq, int event)
+                                u32 pid, u32 seq, int event, unsigned int flags)
 {
         struct ifaddrmsg *ifm;
         struct nlmsghdr *nlh;
         unsigned char *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*ifm));
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
         ifm = NLMSG_DATA(nlh);
 
         ifm->ifa_family = AF_DECnet;
@@ -755,7 +755,7 @@ static void rtmsg_ifa(int event, struct dn_ifaddr *ifa)
                 netlink_set_err(rtnl, 0, RTMGRP_DECnet_IFADDR, ENOBUFS);
                 return;
         }
-        if (dn_dev_fill_ifaddr(skb, ifa, 0, 0, event) < 0) {
+        if (dn_dev_fill_ifaddr(skb, ifa, 0, 0, event, 0) < 0) {
                 kfree_skb(skb);
                 netlink_set_err(rtnl, 0, RTMGRP_DECnet_IFADDR, EINVAL);
                 return;
@@ -790,7 +790,8 @@ static int dn_dev_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
                         if (dn_dev_fill_ifaddr(skb, ifa,
                                                NETLINK_CB(cb->skb).pid,
                                                cb->nlh->nlmsg_seq,
-                                               RTM_NEWADDR) <= 0)
+                                               RTM_NEWADDR,
+                                               NLM_F_MULTI) <= 0)
                                 goto done;
                 }
         }
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index f6dfe96f45b7..f32dba9e26fe 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -101,7 +101,6 @@ struct neigh_table dn_neigh_table = {
         .id =                           "dn_neigh_cache",
         .parms ={
                 .tbl =                  &dn_neigh_table,
-                .entries =              0,
                 .base_reachable_time =  30 * HZ,
                 .retrans_time = 1 * HZ,
                 .gc_staletime = 60 * HZ,
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 1e7b5c3ea215..2399fa8a3f86 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1465,7 +1465,8 @@ int dn_route_input(struct sk_buff *skb)
         return dn_route_input_slow(skb);
 }
 
-static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event, int nowait)
+static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
+                           int event, int nowait, unsigned int flags)
 {
         struct dn_route *rt = (struct dn_route *)skb->dst;
         struct rtmsg *r;
@@ -1473,9 +1474,8 @@ static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event, int
         unsigned char *b = skb->tail;
         struct rta_cacheinfo ci;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*r));
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*r), flags);
         r = NLMSG_DATA(nlh);
-        nlh->nlmsg_flags = (nowait && pid) ? NLM_F_MULTI : 0;
         r->rtm_family = AF_DECnet;
         r->rtm_dst_len = 16;
         r->rtm_src_len = 0;
@@ -1596,7 +1596,7 @@ int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
 
         NETLINK_CB(skb).dst_pid = NETLINK_CB(in_skb).pid;
 
-        err = dn_rt_fill_info(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq, RTM_NEWROUTE, 0);
+        err = dn_rt_fill_info(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq, RTM_NEWROUTE, 0, 0);
 
         if (err == 0)
                 goto out_free;
@@ -1644,7 +1644,8 @@ int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb)
                                 continue;
                         skb->dst = dst_clone(&rt->u.dst);
                         if (dn_rt_fill_info(skb, NETLINK_CB(cb->skb).pid,
-                                        cb->nlh->nlmsg_seq, RTM_NEWROUTE, 1) <= 0) {
+                                        cb->nlh->nlmsg_seq, RTM_NEWROUTE, 
+                                        1, NLM_F_MULTI) <= 0) {
                                 dst_release(xchg(&skb->dst, NULL));
                                 rcu_read_unlock_bh();
                                 goto done;
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 597587d170d8..1060de70bc0c 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -342,14 +342,15 @@ static struct notifier_block dn_fib_rules_notifier = {
         .notifier_call =        dn_fib_rules_event,
 };
 
-static int dn_fib_fill_rule(struct sk_buff *skb, struct dn_fib_rule *r, struct netlink_callback *cb)
+static int dn_fib_fill_rule(struct sk_buff *skb, struct dn_fib_rule *r,
+                            struct netlink_callback *cb, unsigned int flags)
 {
         struct rtmsg *rtm;
         struct nlmsghdr *nlh;
         unsigned char *b = skb->tail;
 
 
-        nlh = NLMSG_PUT(skb, NETLINK_CREDS(cb->skb)->pid, cb->nlh->nlmsg_seq, RTM_NEWRULE, sizeof(*rtm));
+        nlh = NLMSG_NEW_ANSWER(skb, cb, RTM_NEWRULE, sizeof(*rtm), flags);
         rtm = NLMSG_DATA(nlh);
         rtm->rtm_family = AF_DECnet;
         rtm->rtm_dst_len = r->r_dst_len;
@@ -394,7 +395,7 @@ int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
         for(r = dn_fib_rules, idx = 0; r; r = r->r_next, idx++) {
                 if (idx < s_idx)
                         continue;
-                if (dn_fib_fill_rule(skb, r, cb) < 0)
+                if (dn_fib_fill_rule(skb, r, cb, NLM_F_MULTI) < 0)
                         break;
         }
         read_unlock(&dn_fib_rules_lock);
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index dad5603912be..28ba5777a25a 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -270,13 +270,13 @@ static int dn_fib_nh_match(struct rtmsg *r, struct nlmsghdr *nlh, struct dn_kern
 
 static int dn_fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
                         u8 tb_id, u8 type, u8 scope, void *dst, int dst_len,
-                        struct dn_fib_info *fi)
+                        struct dn_fib_info *fi, unsigned int flags)
 {
         struct rtmsg *rtm;
         struct nlmsghdr *nlh;
         unsigned char *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*rtm));
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*rtm), flags);
         rtm = NLMSG_DATA(nlh);
         rtm->rtm_family = AF_DECnet;
         rtm->rtm_dst_len = dst_len;
@@ -345,7 +345,7 @@ static void dn_rtmsg_fib(int event, struct dn_fib_node *f, int z, int tb_id,
 
         if (dn_fib_dump_info(skb, pid, nlh->nlmsg_seq, event, tb_id, 
                                 f->fn_type, f->fn_scope, &f->fn_key, z, 
-                                DN_FIB_INFO(f)) < 0) {
+                                DN_FIB_INFO(f), 0) < 0) {
                 kfree_skb(skb);
                 return;
         }
@@ -377,7 +377,7 @@ static __inline__ int dn_hash_dump_bucket(struct sk_buff *skb,
                                 tb->n, 
                                 (f->fn_state & DN_S_ZOMBIE) ? 0 : f->fn_type,
                                 f->fn_scope, &f->fn_key, dz->dz_order, 
-                                f->fn_info) < 0) {
+                                f->fn_info, NLM_F_MULTI) < 0) {
                         cb->args[3] = i;
                         return -1;
                 }
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 6d3e8b1bd1f2..3e63123f7bbd 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -53,6 +53,44 @@ config IP_ADVANCED_ROUTER
 
           If unsure, say N here.
 
+choice 
+        prompt "Choose IP: FIB lookup algorithm (choose FIB_HASH if unsure)"
+        depends on IP_ADVANCED_ROUTER
+        default IP_FIB_HASH
+
+config IP_FIB_HASH
+        bool "FIB_HASH"
+        ---help---
+        Current FIB is very proven and good enough for most users.
+
+config IP_FIB_TRIE
+        bool "FIB_TRIE"
+        ---help---
+        Use new experimental LC-trie as FIB lookup algoritm. 
+        This improves lookup performance if you have a large
+        number of routes.
+
+        LC-trie is a longest matching prefix lookup algorithm which
+        performs better than FIB_HASH for large routing tables.
+        But, it consumes more memory and is more complex.
+        
+        LC-trie is described in:
+        
+        IP-address lookup using LC-tries. Stefan Nilsson and Gunnar Karlsson
+        IEEE Journal on Selected Areas in Communications, 17(6):1083-1092, June 1999
+        An experimental study of compression methods for dynamic tries
+        Stefan Nilsson and Matti Tikkanen. Algorithmica, 33(1):19-33, 2002.
+        http://www.nada.kth.se/~snilsson/public/papers/dyntrie2/
+       
+endchoice
+
+# If the user does not enable advanced routing, he gets the safe
+# default of the fib-hash algorithm.
+config IP_FIB_HASH
+        bool
+        depends on !IP_ADVANCED_ROUTER
+        default y
+
 config IP_MULTIPLE_TABLES
         bool "IP: policy routing"
         depends on IP_ADVANCED_ROUTER
@@ -407,5 +445,112 @@ config IP_TCPDIAG
 config IP_TCPDIAG_IPV6
         def_bool (IP_TCPDIAG=y && IPV6=y) || (IP_TCPDIAG=m && IPV6)
 
+config TCP_CONG_ADVANCED
+        bool "TCP: advanced congestion control"
+        depends on INET
+        ---help---
+          Support for selection of various TCP congestion control
+          modules.
+
+          Nearly all users can safely say no here, and a safe default
+          selection will be made (BIC-TCP with new Reno as a fallback).
+
+          If unsure, say N.
+
+# TCP Reno is builtin (required as fallback)
+menu "TCP congestion control"
+        depends on TCP_CONG_ADVANCED
+
+config TCP_CONG_BIC
+        tristate "Binary Increase Congestion (BIC) control"
+        depends on INET
+        default y
+        ---help---
+        BIC-TCP is a sender-side only change that ensures a linear RTT
+        fairness under large windows while offering both scalability and
+        bounded TCP-friendliness. The protocol combines two schemes
+        called additive increase and binary search increase. When the
+        congestion window is large, additive increase with a large
+        increment ensures linear RTT fairness as well as good
+        scalability. Under small congestion windows, binary search
+        increase provides TCP friendliness.
+        See http://www.csc.ncsu.edu/faculty/rhee/export/bitcp/
+
+config TCP_CONG_WESTWOOD
+        tristate "TCP Westwood+"
+        depends on INET
+        default m
+        ---help---
+        TCP Westwood+ is a sender-side only modification of the TCP Reno
+        protocol stack that optimizes the performance of TCP congestion
+        control. It is based on end-to-end bandwidth estimation to set
+        congestion window and slow start threshold after a congestion
+        episode. Using this estimation, TCP Westwood+ adaptively sets a
+        slow start threshold and a congestion window which takes into
+        account the bandwidth used  at the time congestion is experienced.
+        TCP Westwood+ significantly increases fairness wrt TCP Reno in
+        wired networks and throughput over wireless links.
+
+config TCP_CONG_HTCP
+        tristate "H-TCP"
+        depends on INET
+        default m
+        ---help---
+        H-TCP is a send-side only modifications of the TCP Reno
+        protocol stack that optimizes the performance of TCP
+        congestion control for high speed network links. It uses a
+        modeswitch to change the alpha and beta parameters of TCP Reno
+        based on network conditions and in a way so as to be fair with
+        other Reno and H-TCP flows.
+
+config TCP_CONG_HSTCP
+        tristate "High Speed TCP"
+        depends on INET && EXPERIMENTAL
+        default n
+        ---help---
+        Sally Floyd's High Speed TCP (RFC 3649) congestion control.
+        A modification to TCP's congestion control mechanism for use
+        with large congestion windows. A table indicates how much to
+        increase the congestion window by when an ACK is received.
+        For more detail see http://www.icir.org/floyd/hstcp.html
+
+config TCP_CONG_HYBLA
+        tristate "TCP-Hybla congestion control algorithm"
+        depends on INET && EXPERIMENTAL
+        default n
+        ---help---
+        TCP-Hybla is a sender-side only change that eliminates penalization of
+        long-RTT, large-bandwidth connections, like when satellite legs are
+        involved, expecially when sharing a common bottleneck with normal
+        terrestrial connections.
+
+config TCP_CONG_VEGAS
+        tristate "TCP Vegas"
+        depends on INET && EXPERIMENTAL
+        default n
+        ---help---
+        TCP Vegas is a sender-side only change to TCP that anticipates
+        the onset of congestion by estimating the bandwidth. TCP Vegas
+        adjusts the sending rate by modifying the congestion
+        window. TCP Vegas should provide less packet loss, but it is
+        not as aggressive as TCP Reno.
+
+config TCP_CONG_SCALABLE
+        tristate "Scalable TCP"
+        depends on INET && EXPERIMENTAL
+        default n
+        ---help---
+        Scalable TCP is a sender-side only change to TCP which uses a
+        MIMD congestion control algorithm which has some nice scaling
+        properties, though is known to have fairness issues.
+        See http://www-lce.eng.cam.ac.uk/~ctk21/scalable/
+
+endmenu
+
+config TCP_CONG_BIC
+        tristate
+        depends on !TCP_CONG_ADVANCED
+        default y
+
 source "net/ipv4/ipvs/Kconfig"
 
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index 8b379627ebb6..5718cdb3a61e 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -5,10 +5,13 @@
 obj-y     := utils.o route.o inetpeer.o protocol.o \
              ip_input.o ip_fragment.o ip_forward.o ip_options.o \
              ip_output.o ip_sockglue.o \
-             tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o tcp_minisocks.o \
+             tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o \
+             tcp_minisocks.o tcp_cong.o \
              datagram.o raw.o udp.o arp.o icmp.o devinet.o af_inet.o igmp.o \
-             sysctl_net_ipv4.o fib_frontend.o fib_semantics.o fib_hash.o
+             sysctl_net_ipv4.o fib_frontend.o fib_semantics.o
 
+obj-$(CONFIG_IP_FIB_HASH) += fib_hash.o
+obj-$(CONFIG_IP_FIB_TRIE) += fib_trie.o
 obj-$(CONFIG_PROC_FS) += proc.o
 obj-$(CONFIG_IP_MULTIPLE_TABLES) += fib_rules.o
 obj-$(CONFIG_IP_MROUTE) += ipmr.o
@@ -28,6 +31,13 @@ obj-$(CONFIG_NETFILTER)	+= netfilter/
 obj-$(CONFIG_IP_VS) += ipvs/
 obj-$(CONFIG_IP_TCPDIAG) += tcp_diag.o 
 obj-$(CONFIG_IP_ROUTE_MULTIPATH_CACHED) += multipath.o
+obj-$(CONFIG_TCP_CONG_BIC) += tcp_bic.o
+obj-$(CONFIG_TCP_CONG_WESTWOOD) += tcp_westwood.o
+obj-$(CONFIG_TCP_CONG_HSTCP) += tcp_highspeed.o
+obj-$(CONFIG_TCP_CONG_HYBLA) += tcp_hybla.o
+obj-$(CONFIG_TCP_CONG_HTCP) += tcp_htcp.o
+obj-$(CONFIG_TCP_CONG_VEGAS) += tcp_vegas.o
+obj-$(CONFIG_TCP_CONG_SCALABLE) += tcp_scalable.o
 
 obj-$(CONFIG_XFRM) += xfrm4_policy.o xfrm4_state.o xfrm4_input.o \
                       xfrm4_output.o
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index b3cb49ce5fad..658e7977924d 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1119,6 +1119,10 @@ module_init(inet_init);
 #ifdef CONFIG_PROC_FS
 extern int  fib_proc_init(void);
 extern void fib_proc_exit(void);
+#ifdef CONFIG_IP_FIB_TRIE
+extern int  fib_stat_proc_init(void);
+extern void fib_stat_proc_exit(void);
+#endif
 extern int  ip_misc_proc_init(void);
 extern int  raw_proc_init(void);
 extern void raw_proc_exit(void);
@@ -1139,11 +1143,19 @@ static int __init ipv4_proc_init(void)
                 goto out_udp;
         if (fib_proc_init())
                 goto out_fib;
+#ifdef CONFIG_IP_FIB_TRIE
+         if (fib_stat_proc_init())
+                 goto out_fib_stat;
+ #endif
         if (ip_misc_proc_init())
                 goto out_misc;
 out:
         return rc;
 out_misc:
+#ifdef CONFIG_IP_FIB_TRIE
+        fib_stat_proc_exit();
+out_fib_stat:
+#endif
         fib_proc_exit();
 out_fib:
         udp4_proc_exit();
@@ -1181,6 +1193,7 @@ EXPORT_SYMBOL(inet_stream_connect);
 EXPORT_SYMBOL(inet_stream_ops);
 EXPORT_SYMBOL(inet_unregister_protosw);
 EXPORT_SYMBOL(net_statistics);
+EXPORT_SYMBOL(sysctl_ip_nonlocal_bind);
 
 #ifdef INET_REFCNT_DEBUG
 EXPORT_SYMBOL(inet_sock_nr);
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 0e98f2235b6e..514c85b2631a 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -200,7 +200,7 @@ static void ah4_err(struct sk_buff *skb, u32 info)
         xfrm_state_put(x);
 }
 
-static int ah_init_state(struct xfrm_state *x, void *args)
+static int ah_init_state(struct xfrm_state *x)
 {
         struct ah_data *ahp = NULL;
         struct xfrm_algo_desc *aalg_desc;
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 3cc96730c4ed..d8a10e3dd77d 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -233,11 +233,14 @@ int inet_addr_onlink(struct in_device *in_dev, u32 a, u32 b)
 static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
                          int destroy)
 {
+        struct in_ifaddr *promote = NULL;
         struct in_ifaddr *ifa1 = *ifap;
 
         ASSERT_RTNL();
 
-        /* 1. Deleting primary ifaddr forces deletion all secondaries */
+        /* 1. Deleting primary ifaddr forces deletion all secondaries 
+         * unless alias promotion is set
+         **/
 
         if (!(ifa1->ifa_flags & IFA_F_SECONDARY)) {
                 struct in_ifaddr *ifa;
@@ -251,11 +254,16 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
                                 continue;
                         }
 
-                        *ifap1 = ifa->ifa_next;
+                        if (!IN_DEV_PROMOTE_SECONDARIES(in_dev)) {
+                                *ifap1 = ifa->ifa_next;
 
-                        rtmsg_ifa(RTM_DELADDR, ifa);
-                        notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa);
-                        inet_free_ifa(ifa);
+                                rtmsg_ifa(RTM_DELADDR, ifa);
+                                notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa);
+                                inet_free_ifa(ifa);
+                        } else {
+                                promote = ifa;
+                                break;
+                        }
                 }
         }
 
@@ -281,6 +289,13 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
                 if (!in_dev->ifa_list)
                         inetdev_destroy(in_dev);
         }
+
+        if (promote && IN_DEV_PROMOTE_SECONDARIES(in_dev)) {
+                /* not sure if we should send a delete notify first? */
+                promote->ifa_flags &= ~IFA_F_SECONDARY;
+                rtmsg_ifa(RTM_NEWADDR, promote);
+                notifier_call_chain(&inetaddr_chain, NETDEV_UP, promote);
+        }
 }
 
 static int inet_insert_ifa(struct in_ifaddr *ifa)
@@ -1015,14 +1030,13 @@ static struct notifier_block ip_netdev_notifier = {
 };
 
 static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa,
-                            u32 pid, u32 seq, int event)
+                            u32 pid, u32 seq, int event, unsigned int flags)
 {
         struct ifaddrmsg *ifm;
         struct nlmsghdr  *nlh;
         unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*ifm));
-        if (pid) nlh->nlmsg_flags |= NLM_F_MULTI;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
         ifm = NLMSG_DATA(nlh);
         ifm->ifa_family = AF_INET;
         ifm->ifa_prefixlen = ifa->ifa_prefixlen;
@@ -1075,7 +1089,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
                                 continue;
                         if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
                                              cb->nlh->nlmsg_seq,
-                                             RTM_NEWADDR) <= 0) {
+                                             RTM_NEWADDR, NLM_F_MULTI) <= 0) {
                                 rcu_read_unlock();
                                 goto done;
                         }
@@ -1098,7 +1112,7 @@ static void rtmsg_ifa(int event, struct in_ifaddr* ifa)
 
         if (!skb)
                 netlink_set_err(rtnl, 0, RTMGRP_IPV4_IFADDR, ENOBUFS);
-        else if (inet_fill_ifaddr(skb, ifa, 0, 0, event) < 0) {
+        else if (inet_fill_ifaddr(skb, ifa, current->pid, 0, event, 0) < 0) {
                 kfree_skb(skb);
                 netlink_set_err(rtnl, 0, RTMGRP_IPV4_IFADDR, EINVAL);
         } else {
@@ -1384,6 +1398,15 @@ static struct devinet_sysctl_table {
                         .proc_handler   = &ipv4_doint_and_flush,
                         .strategy       = &ipv4_doint_and_flush_strategy,
                 },
+                {
+                        .ctl_name       = NET_IPV4_CONF_PROMOTE_SECONDARIES,
+                        .procname       = "promote_secondaries",
+                        .data           = &ipv4_devconf.promote_secondaries,
+                        .maxlen         = sizeof(int),
+                        .mode           = 0644,
+                        .proc_handler   = &ipv4_doint_and_flush,
+                        .strategy       = &ipv4_doint_and_flush_strategy,
+                },
         },
         .devinet_dev = {
                 {
@@ -1448,7 +1471,7 @@ static void devinet_sysctl_register(struct in_device *in_dev,
          * by sysctl and we wouldn't want anyone to change it under our feet
          * (see SIOCSIFNAME).
          */     
-        dev_name = net_sysctl_strdup(dev_name);
+        dev_name = kstrdup(dev_name, GFP_KERNEL);
         if (!dev_name)
             goto free;
 
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 053a883247ba..ba57446d5d1f 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -362,7 +362,7 @@ static void esp_destroy(struct xfrm_state *x)
         kfree(esp);
 }
 
-static int esp_init_state(struct xfrm_state *x, void *args)
+static int esp_init_state(struct xfrm_state *x)
 {
         struct esp_data *esp = NULL;
 
@@ -478,7 +478,7 @@ static int __init esp4_init(void)
 {
         struct xfrm_decap_state decap;
 
-        if (sizeof(struct esp_decap_data)  <
+        if (sizeof(struct esp_decap_data)  >
             sizeof(decap.decap_data)) {
                 extern void decap_data_too_small(void);
 
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 563e7d612706..cd8e45ab9580 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -516,6 +516,60 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa)
 #undef BRD1_OK
 }
 
+static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb )
+{
+        
+        struct fib_result       res;
+        struct flowi            fl = { .nl_u = { .ip4_u = { .daddr = frn->fl_addr, 
+                                                            .fwmark = frn->fl_fwmark,
+                                                            .tos = frn->fl_tos,
+                                                            .scope = frn->fl_scope } } };
+        if (tb) {
+                local_bh_disable();
+
+                frn->tb_id = tb->tb_id;
+                frn->err = tb->tb_lookup(tb, &fl, &res);
+
+                if (!frn->err) {
+                        frn->prefixlen = res.prefixlen;
+                        frn->nh_sel = res.nh_sel;
+                        frn->type = res.type;
+                        frn->scope = res.scope;
+                }
+                local_bh_enable();
+        }
+}
+
+static void nl_fib_input(struct sock *sk, int len)
+{
+        struct sk_buff *skb = NULL;
+        struct nlmsghdr *nlh = NULL;
+        struct fib_result_nl *frn;
+        int err;
+        u32 pid;     
+        struct fib_table *tb;
+        
+        skb = skb_recv_datagram(sk, 0, 0, &err);
+        nlh = (struct nlmsghdr *)skb->data;
+        
+        frn = (struct fib_result_nl *) NLMSG_DATA(nlh);
+        tb = fib_get_table(frn->tb_id_in);
+
+        nl_fib_lookup(frn, tb);
+        
+        pid = nlh->nlmsg_pid;           /*pid of sending process */
+        NETLINK_CB(skb).groups = 0;     /* not in mcast group */
+        NETLINK_CB(skb).pid = 0;         /* from kernel */
+        NETLINK_CB(skb).dst_pid = pid;
+        NETLINK_CB(skb).dst_groups = 0;  /* unicast */
+        netlink_unicast(sk, skb, pid, MSG_DONTWAIT);
+}    
+
+static void nl_fib_lookup_init(void)
+{
+      netlink_kernel_create(NETLINK_FIB_LOOKUP, nl_fib_input);
+}
+
 static void fib_disable_ip(struct net_device *dev, int force)
 {
         if (fib_sync_down(0, dev, force))
@@ -604,6 +658,7 @@ void __init ip_fib_init(void)
 
         register_netdevice_notifier(&fib_netdev_notifier);
         register_inetaddr_notifier(&fib_inetaddr_notifier);
+        nl_fib_lookup_init();
 }
 
 EXPORT_SYMBOL(inet_addr_type);
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 6506dcc01b46..b10d6bb5ef3d 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -703,7 +703,8 @@ fn_hash_dump_bucket(struct sk_buff *skb, struct netlink_callback *cb,
                                           &f->fn_key,
                                           fz->fz_order,
                                           fa->fa_tos,
-                                          fa->fa_info) < 0) {
+                                          fa->fa_info,
+                                          NLM_F_MULTI) < 0) {
                                 cb->args[3] = i;
                                 return -1;
                         }
diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index ac4485f75e97..b729d97cfa93 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -30,7 +30,8 @@ extern int fib_nh_match(struct rtmsg *r, struct nlmsghdr *,
                         struct kern_rta *rta, struct fib_info *fi);
 extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
                          u8 tb_id, u8 type, u8 scope, void *dst,
-                         int dst_len, u8 tos, struct fib_info *fi);
+                         int dst_len, u8 tos, struct fib_info *fi,
+                         unsigned int);
 extern void rtmsg_fib(int event, u32 key, struct fib_alias *fa,
                       int z, int tb_id,
                       struct nlmsghdr *n, struct netlink_skb_parms *req);
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 39d0aadb9a2a..0b298bbc1518 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -367,13 +367,14 @@ static struct notifier_block fib_rules_notifier = {
 
 static __inline__ int inet_fill_rule(struct sk_buff *skb,
                                      struct fib_rule *r,
-                                     struct netlink_callback *cb)
+                                     struct netlink_callback *cb,
+                                     unsigned int flags)
 {
         struct rtmsg *rtm;
         struct nlmsghdr  *nlh;
         unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, NETLINK_CREDS(cb->skb)->pid, cb->nlh->nlmsg_seq, RTM_NEWRULE, sizeof(*rtm));
+        nlh = NLMSG_NEW_ANSWER(skb, cb, RTM_NEWRULE, sizeof(*rtm), flags);
         rtm = NLMSG_DATA(nlh);
         rtm->rtm_family = AF_INET;
         rtm->rtm_dst_len = r->r_dst_len;
@@ -422,7 +423,7 @@ int inet_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
         for (r=fib_rules, idx=0; r; r = r->r_next, idx++) {
                 if (idx < s_idx)
                         continue;
-                if (inet_fill_rule(skb, r, cb) < 0)
+                if (inet_fill_rule(skb, r, cb, NLM_F_MULTI) < 0)
                         break;
         }
         read_unlock(&fib_rules_lock);
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 029362d66135..c886b28ba9f5 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -276,7 +276,7 @@ void rtmsg_fib(int event, u32 key, struct fib_alias *fa,
                struct nlmsghdr *n, struct netlink_skb_parms *req)
 {
         struct sk_buff *skb;
-        u32 pid = req ? req->pid : 0;
+        u32 pid = req ? req->pid : n->nlmsg_pid;
         int size = NLMSG_SPACE(sizeof(struct rtmsg)+256);
 
         skb = alloc_skb(size, GFP_KERNEL);
@@ -286,7 +286,7 @@ void rtmsg_fib(int event, u32 key, struct fib_alias *fa,
         if (fib_dump_info(skb, pid, n->nlmsg_seq, event, tb_id,
                           fa->fa_type, fa->fa_scope, &key, z,
                           fa->fa_tos,
-                          fa->fa_info) < 0) {
+                          fa->fa_info, 0) < 0) {
                 kfree_skb(skb);
                 return;
         }
@@ -932,13 +932,13 @@ u32 __fib_res_prefsrc(struct fib_result *res)
 int
 fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
               u8 tb_id, u8 type, u8 scope, void *dst, int dst_len, u8 tos,
-              struct fib_info *fi)
+              struct fib_info *fi, unsigned int flags)
 {
         struct rtmsg *rtm;
         struct nlmsghdr  *nlh;
         unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*rtm));
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*rtm), flags);
         rtm = NLMSG_DATA(nlh);
         rtm->rtm_family = AF_INET;
         rtm->rtm_dst_len = dst_len;
@@ -1035,7 +1035,7 @@ fib_convert_rtentry(int cmd, struct nlmsghdr *nl, struct rtmsg *rtm,
         }
 
         nl->nlmsg_flags = NLM_F_REQUEST;
-        nl->nlmsg_pid = 0;
+        nl->nlmsg_pid = current->pid;
         nl->nlmsg_seq = 0;
         nl->nlmsg_len = NLMSG_LENGTH(sizeof(*rtm));
         if (cmd == SIOCDELRT) {
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
new file mode 100644
index 000000000000..0671569ee6f0
--- /dev/null
+++ b/net/ipv4/fib_trie.c
@@ -0,0 +1,2454 @@
+/*
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version
+ *   2 of the License, or (at your option) any later version.
+ *
+ *   Robert Olsson <robert.olsson@its.uu.se> Uppsala Universitet
+ *     & Swedish University of Agricultural Sciences.
+ *
+ *   Jens Laas <jens.laas@data.slu.se> Swedish University of 
+ *     Agricultural Sciences.
+ * 
+ *   Hans Liss <hans.liss@its.uu.se>  Uppsala Universitet
+ *
+ * This work is based on the LPC-trie which is originally descibed in:
+ * 
+ * An experimental study of compression methods for dynamic tries
+ * Stefan Nilsson and Matti Tikkanen. Algorithmica, 33(1):19-33, 2002.
+ * http://www.nada.kth.se/~snilsson/public/papers/dyntrie2/
+ *
+ *
+ * IP-address lookup using LC-tries. Stefan Nilsson and Gunnar Karlsson
+ * IEEE Journal on Selected Areas in Communications, 17(6):1083-1092, June 1999
+ *
+ * Version:     $Id: fib_trie.c,v 1.3 2005/06/08 14:20:01 robert Exp $
+ *
+ *
+ * Code from fib_hash has been reused which includes the following header:
+ *
+ *
+ * INET         An implementation of the TCP/IP protocol suite for the LINUX
+ *              operating system.  INET is implemented using the  BSD Socket
+ *              interface as the means of communication with the user level.
+ *
+ *              IPv4 FIB: lookup engine and maintenance routines.
+ *
+ *
+ * Authors:     Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ *              This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU General Public License
+ *              as published by the Free Software Foundation; either version
+ *              2 of the License, or (at your option) any later version.
+ */
+
+#define VERSION "0.323"
+
+#include <linux/config.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <linux/errno.h>
+#include <linux/in.h>
+#include <linux/inet.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/proc_fs.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <net/ip.h>
+#include <net/protocol.h>
+#include <net/route.h>
+#include <net/tcp.h>
+#include <net/sock.h>
+#include <net/ip_fib.h>
+#include "fib_lookup.h"
+
+#undef CONFIG_IP_FIB_TRIE_STATS
+#define MAX_CHILDS 16384
+
+#define EXTRACT(p, n, str) ((str)<<(p)>>(32-(n)))
+#define KEYLENGTH (8*sizeof(t_key))
+#define MASK_PFX(k, l) (((l)==0)?0:(k >> (KEYLENGTH-l)) << (KEYLENGTH-l))
+#define TKEY_GET_MASK(offset, bits) (((bits)==0)?0:((t_key)(-1) << (KEYLENGTH - bits) >> offset))
+
+static DEFINE_RWLOCK(fib_lock);
+
+typedef unsigned int t_key;
+
+#define T_TNODE 0
+#define T_LEAF  1
+#define NODE_TYPE_MASK  0x1UL
+#define NODE_PARENT(_node) \
+((struct tnode *)((_node)->_parent & ~NODE_TYPE_MASK))
+#define NODE_SET_PARENT(_node, _ptr) \
+((_node)->_parent = (((unsigned long)(_ptr)) | \
+                     ((_node)->_parent & NODE_TYPE_MASK)))
+#define NODE_INIT_PARENT(_node, _type) \
+((_node)->_parent = (_type))
+#define NODE_TYPE(_node) \
+((_node)->_parent & NODE_TYPE_MASK)
+
+#define IS_TNODE(n) (!(n->_parent & T_LEAF))
+#define IS_LEAF(n) (n->_parent & T_LEAF)
+
+struct node {
+        t_key key;
+        unsigned long _parent;
+};
+
+struct leaf {
+        t_key key;
+        unsigned long _parent;
+        struct hlist_head list;
+};
+
+struct leaf_info {
+        struct hlist_node hlist;
+        int plen;
+        struct list_head falh;
+};
+
+struct tnode {
+        t_key key;
+        unsigned long _parent;
+        unsigned short pos:5;        /* 2log(KEYLENGTH) bits needed */
+        unsigned short bits:5;       /* 2log(KEYLENGTH) bits needed */
+        unsigned short full_children;  /* KEYLENGTH bits needed */
+        unsigned short empty_children; /* KEYLENGTH bits needed */
+        struct node *child[0];
+};
+
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+struct trie_use_stats {
+        unsigned int gets;
+        unsigned int backtrack;
+        unsigned int semantic_match_passed;
+        unsigned int semantic_match_miss;
+        unsigned int null_node_hit;
+};
+#endif
+
+struct trie_stat {
+        unsigned int totdepth;
+        unsigned int maxdepth;
+        unsigned int tnodes;
+        unsigned int leaves;
+        unsigned int nullpointers;
+        unsigned int nodesizes[MAX_CHILDS];
+};    
+
+struct trie {
+        struct node *trie;
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+        struct trie_use_stats stats;
+#endif
+        int size;
+        unsigned int revision;
+};
+
+static int trie_debug = 0;
+
+static int tnode_full(struct tnode *tn, struct node *n);
+static void put_child(struct trie *t, struct tnode *tn, int i, struct node *n);
+static void tnode_put_child_reorg(struct tnode *tn, int i, struct node *n, int wasfull);
+static int tnode_child_length(struct tnode *tn);
+static struct node *resize(struct trie *t, struct tnode *tn);
+static struct tnode *inflate(struct trie *t, struct tnode *tn);
+static struct tnode *halve(struct trie *t, struct tnode *tn);
+static void tnode_free(struct tnode *tn);
+static void trie_dump_seq(struct seq_file *seq, struct trie *t);
+extern struct fib_alias *fib_find_alias(struct list_head *fah, u8 tos, u32 prio);
+extern int fib_detect_death(struct fib_info *fi, int order,
+                            struct fib_info **last_resort, int *last_idx, int *dflt);
+
+extern void rtmsg_fib(int event, u32 key, struct fib_alias *fa, int z, int tb_id,
+               struct nlmsghdr *n, struct netlink_skb_parms *req);
+
+static kmem_cache_t *fn_alias_kmem;
+static struct trie *trie_local = NULL, *trie_main = NULL;
+
+static void trie_bug(char *err)
+{
+        printk("Trie Bug: %s\n", err);
+        BUG();
+}
+
+static inline struct node *tnode_get_child(struct tnode *tn, int i) 
+{
+        if (i >=  1<<tn->bits) 
+                trie_bug("tnode_get_child");
+
+        return tn->child[i];
+}
+
+static inline int tnode_child_length(struct tnode *tn)
+{
+        return 1<<tn->bits;
+}
+
+/*
+  _________________________________________________________________
+  | i | i | i | i | i | i | i | N | N | N | S | S | S | S | S | C |
+  ----------------------------------------------------------------
+    0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15 
+
+  _________________________________________________________________
+  | C | C | C | u | u | u | u | u | u | u | u | u | u | u | u | u |
+  -----------------------------------------------------------------
+   16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
+
+  tp->pos = 7
+  tp->bits = 3
+  n->pos = 15
+  n->bits=4
+  KEYLENGTH=32
+*/
+
+static inline t_key tkey_extract_bits(t_key a, int offset, int bits)
+{
+        if (offset < KEYLENGTH)
+                return ((t_key)(a << offset)) >> (KEYLENGTH - bits);
+        else
+                return 0;
+}
+
+static inline int tkey_equals(t_key a, t_key b)
+{
+  return a == b;
+}
+
+static inline int tkey_sub_equals(t_key a, int offset, int bits, t_key b)
+{
+     if (bits == 0 || offset >= KEYLENGTH)
+            return 1;
+        bits = bits > KEYLENGTH ? KEYLENGTH : bits;
+        return ((a ^ b) << offset) >> (KEYLENGTH - bits) == 0;
+}       
+
+static inline int tkey_mismatch(t_key a, int offset, t_key b)
+{
+        t_key diff = a ^ b;
+        int i = offset;
+
+        if(!diff) 
+          return 0;
+        while((diff << i) >> (KEYLENGTH-1) == 0)
+                i++;
+        return i;
+}
+
+/* Candiate for fib_semantics */
+
+static void fn_free_alias(struct fib_alias *fa)
+{
+        fib_release_info(fa->fa_info);
+        kmem_cache_free(fn_alias_kmem, fa);
+}
+
+/*
+  To understand this stuff, an understanding of keys and all their bits is 
+  necessary. Every node in the trie has a key associated with it, but not 
+  all of the bits in that key are significant.
+
+  Consider a node 'n' and its parent 'tp'.
+
+  If n is a leaf, every bit in its key is significant. Its presence is 
+  necessitaded by path compression, since during a tree traversal (when 
+  searching for a leaf - unless we are doing an insertion) we will completely 
+  ignore all skipped bits we encounter. Thus we need to verify, at the end of 
+  a potentially successful search, that we have indeed been walking the 
+  correct key path.
+
+  Note that we can never "miss" the correct key in the tree if present by 
+  following the wrong path. Path compression ensures that segments of the key 
+  that are the same for all keys with a given prefix are skipped, but the 
+  skipped part *is* identical for each node in the subtrie below the skipped 
+  bit! trie_insert() in this implementation takes care of that - note the 
+  call to tkey_sub_equals() in trie_insert().
+
+  if n is an internal node - a 'tnode' here, the various parts of its key 
+  have many different meanings.
+
+  Example:  
+  _________________________________________________________________
+  | i | i | i | i | i | i | i | N | N | N | S | S | S | S | S | C |
+  -----------------------------------------------------------------
+    0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15 
+
+  _________________________________________________________________
+  | C | C | C | u | u | u | u | u | u | u | u | u | u | u | u | u |
+  -----------------------------------------------------------------
+   16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
+
+  tp->pos = 7
+  tp->bits = 3
+  n->pos = 15
+  n->bits=4
+
+  First, let's just ignore the bits that come before the parent tp, that is 
+  the bits from 0 to (tp->pos-1). They are *known* but at this point we do 
+  not use them for anything.
+
+  The bits from (tp->pos) to (tp->pos + tp->bits - 1) - "N", above - are the
+  index into the parent's child array. That is, they will be used to find 
+  'n' among tp's children.
+
+  The bits from (tp->pos + tp->bits) to (n->pos - 1) - "S" - are skipped bits
+  for the node n.
+
+  All the bits we have seen so far are significant to the node n. The rest 
+  of the bits are really not needed or indeed known in n->key.
+
+  The bits from (n->pos) to (n->pos + n->bits - 1) - "C" - are the index into 
+  n's child array, and will of course be different for each child.
+  
+  The rest of the bits, from (n->pos + n->bits) onward, are completely unknown
+  at this point.
+
+*/
+
+static void check_tnode(struct tnode *tn)
+{
+        if(tn && tn->pos+tn->bits > 32) {
+                printk("TNODE ERROR tn=%p, pos=%d, bits=%d\n", tn, tn->pos, tn->bits);
+        }
+}
+
+static int halve_threshold = 25;
+static int inflate_threshold = 50;
+
+static struct leaf *leaf_new(void)
+{
+        struct leaf *l = kmalloc(sizeof(struct leaf),  GFP_KERNEL);
+        if(l) {
+                NODE_INIT_PARENT(l, T_LEAF);
+                INIT_HLIST_HEAD(&l->list);
+        }
+        return l;
+}
+
+static struct leaf_info *leaf_info_new(int plen)
+{
+        struct leaf_info *li = kmalloc(sizeof(struct leaf_info),  GFP_KERNEL);
+        li->plen = plen;
+        INIT_LIST_HEAD(&li->falh);
+        return li;
+}
+
+static inline void free_leaf(struct leaf *l)
+{
+        kfree(l);
+}
+
+static inline void free_leaf_info(struct leaf_info *li)
+{
+        kfree(li);
+}
+
+static struct tnode* tnode_new(t_key key, int pos, int bits)
+{
+        int nchildren = 1<<bits;
+        int sz = sizeof(struct tnode) + nchildren * sizeof(struct node *);
+        struct tnode *tn = kmalloc(sz,  GFP_KERNEL);
+
+        if(tn)  {
+                memset(tn, 0, sz);
+                NODE_INIT_PARENT(tn, T_TNODE);
+                tn->pos = pos;
+                tn->bits = bits;
+                tn->key = key;
+                tn->full_children = 0;
+                tn->empty_children = 1<<bits;
+        }
+        if(trie_debug > 0) 
+                printk("AT %p s=%u %u\n", tn, (unsigned int) sizeof(struct tnode),
+                       (unsigned int) (sizeof(struct node) * 1<<bits));
+        return tn;
+}
+
+static void tnode_free(struct tnode *tn)
+{
+        if(!tn) {
+                trie_bug("tnode_free\n");
+        }
+        if(IS_LEAF(tn)) {
+                free_leaf((struct leaf *)tn);
+                if(trie_debug > 0 ) 
+                        printk("FL %p \n", tn);
+        }
+        else if(IS_TNODE(tn)) { 
+                kfree(tn);
+                if(trie_debug > 0 ) 
+                        printk("FT %p \n", tn);
+        }
+        else {
+                trie_bug("tnode_free\n");
+        }
+}
+
+/*
+ * Check whether a tnode 'n' is "full", i.e. it is an internal node
+ * and no bits are skipped. See discussion in dyntree paper p. 6
+ */
+
+static inline int tnode_full(struct tnode *tn, struct node *n)
+{
+        if(n == NULL || IS_LEAF(n))
+                return 0;
+
+        return ((struct tnode *) n)->pos == tn->pos + tn->bits;
+}
+
+static inline void put_child(struct trie *t, struct tnode *tn, int i, struct node *n) 
+{
+        tnode_put_child_reorg(tn, i, n, -1);
+}
+
+ /* 
+  * Add a child at position i overwriting the old value.
+  * Update the value of full_children and empty_children.
+  */
+
+static void tnode_put_child_reorg(struct tnode *tn, int i, struct node *n, int wasfull) 
+{
+        struct node *chi;
+        int isfull;
+
+        if(i >=  1<<tn->bits) {
+                printk("bits=%d, i=%d\n", tn->bits, i);
+                trie_bug("tnode_put_child_reorg bits");
+        }
+        write_lock_bh(&fib_lock);
+        chi = tn->child[i];     
+
+        /* update emptyChildren */
+        if (n == NULL && chi != NULL)
+                tn->empty_children++;
+        else if (n != NULL && chi == NULL)
+                tn->empty_children--;
+  
+        /* update fullChildren */
+        if (wasfull == -1)
+                wasfull = tnode_full(tn, chi);
+
+        isfull = tnode_full(tn, n);
+        if (wasfull && !isfull) 
+                tn->full_children--;
+        
+        else if (!wasfull && isfull) 
+                tn->full_children++;
+        if(n) 
+                NODE_SET_PARENT(n, tn); 
+
+        tn->child[i] = n;
+        write_unlock_bh(&fib_lock);
+}
+
+static struct node *resize(struct trie *t, struct tnode *tn) 
+{
+        int i;
+
+        if (!tn)
+                return NULL;
+
+        if(trie_debug) 
+                printk("In tnode_resize %p inflate_threshold=%d threshold=%d\n", 
+                      tn, inflate_threshold, halve_threshold);
+
+        /* No children */
+        if (tn->empty_children == tnode_child_length(tn)) {
+                tnode_free(tn);
+                return NULL;
+        }
+        /* One child */
+        if (tn->empty_children == tnode_child_length(tn) - 1)
+                for (i = 0; i < tnode_child_length(tn); i++) {
+
+                        write_lock_bh(&fib_lock);
+                        if (tn->child[i] != NULL) {
+
+                                /* compress one level */
+                                struct node *n = tn->child[i];
+                                if(n)
+                                        NODE_INIT_PARENT(n, NODE_TYPE(n));
+
+                                write_unlock_bh(&fib_lock);
+                                tnode_free(tn);
+                                return n;
+                        }
+                        write_unlock_bh(&fib_lock);
+                }
+        /* 
+         * Double as long as the resulting node has a number of
+         * nonempty nodes that are above the threshold.
+         */
+
+        /*
+         * From "Implementing a dynamic compressed trie" by Stefan Nilsson of 
+         * the Helsinki University of Technology and Matti Tikkanen of Nokia 
+         * Telecommunications, page 6:
+         * "A node is doubled if the ratio of non-empty children to all 
+         * children in the *doubled* node is at least 'high'."
+         *
+         * 'high' in this instance is the variable 'inflate_threshold'. It 
+         * is expressed as a percentage, so we multiply it with 
+         * tnode_child_length() and instead of multiplying by 2 (since the 
+         * child array will be doubled by inflate()) and multiplying 
+         * the left-hand side by 100 (to handle the percentage thing) we 
+         * multiply the left-hand side by 50.
+         * 
+         * The left-hand side may look a bit weird: tnode_child_length(tn) 
+         * - tn->empty_children is of course the number of non-null children 
+         * in the current node. tn->full_children is the number of "full" 
+         * children, that is non-null tnodes with a skip value of 0.
+         * All of those will be doubled in the resulting inflated tnode, so 
+         * we just count them one extra time here.
+         * 
+         * A clearer way to write this would be:
+         * 
+         * to_be_doubled = tn->full_children;
+         * not_to_be_doubled = tnode_child_length(tn) - tn->empty_children - 
+         *     tn->full_children;
+         *
+         * new_child_length = tnode_child_length(tn) * 2;
+         *
+         * new_fill_factor = 100 * (not_to_be_doubled + 2*to_be_doubled) / 
+         *      new_child_length;
+         * if (new_fill_factor >= inflate_threshold)
+         * 
+         * ...and so on, tho it would mess up the while() loop.
+         * 
+         * anyway,
+         * 100 * (not_to_be_doubled + 2*to_be_doubled) / new_child_length >=
+         *      inflate_threshold
+         * 
+         * avoid a division:
+         * 100 * (not_to_be_doubled + 2*to_be_doubled) >=
+         *      inflate_threshold * new_child_length
+         * 
+         * expand not_to_be_doubled and to_be_doubled, and shorten:
+         * 100 * (tnode_child_length(tn) - tn->empty_children + 
+         *    tn->full_children ) >= inflate_threshold * new_child_length
+         * 
+         * expand new_child_length:
+         * 100 * (tnode_child_length(tn) - tn->empty_children + 
+         *    tn->full_children ) >=
+         *      inflate_threshold * tnode_child_length(tn) * 2
+         * 
+         * shorten again:
+         * 50 * (tn->full_children + tnode_child_length(tn) - 
+         *    tn->empty_children ) >= inflate_threshold * 
+         *    tnode_child_length(tn)
+         * 
+         */
+
+        check_tnode(tn);
+
+        while ((tn->full_children > 0 &&
+               50 * (tn->full_children + tnode_child_length(tn) - tn->empty_children) >=
+                                inflate_threshold * tnode_child_length(tn))) {
+
+                tn = inflate(t, tn);
+        }
+
+        check_tnode(tn);
+
+        /*
+         * Halve as long as the number of empty children in this
+         * node is above threshold.
+         */
+        while (tn->bits > 1 &&
+               100 * (tnode_child_length(tn) - tn->empty_children) <
+               halve_threshold * tnode_child_length(tn))
+
+                tn = halve(t, tn);
+  
+        /* Only one child remains */
+
+        if (tn->empty_children == tnode_child_length(tn) - 1)
+                for (i = 0; i < tnode_child_length(tn); i++) {
+                        
+                        write_lock_bh(&fib_lock);
+                        if (tn->child[i] != NULL) {
+                                /* compress one level */
+                                struct node *n = tn->child[i];
+
+                                if(n)
+                                        NODE_INIT_PARENT(n, NODE_TYPE(n));
+
+                                write_unlock_bh(&fib_lock);
+                                tnode_free(tn);
+                                return n;
+                        }
+                        write_unlock_bh(&fib_lock);
+                }
+
+        return (struct node *) tn;
+}
+
+static struct tnode *inflate(struct trie *t, struct tnode *tn)
+{
+        struct tnode *inode;
+        struct tnode *oldtnode = tn;
+        int olen = tnode_child_length(tn);
+        int i;
+
+        if(trie_debug) 
+                printk("In inflate\n");
+
+        tn = tnode_new(oldtnode->key, oldtnode->pos, oldtnode->bits + 1);
+
+        if (!tn)
+                trie_bug("tnode_new failed");
+
+        for(i = 0; i < olen; i++) {
+                struct node *node = tnode_get_child(oldtnode, i);
+      
+                /* An empty child */
+                if (node == NULL)
+                        continue;
+
+                /* A leaf or an internal node with skipped bits */
+
+                if(IS_LEAF(node) || ((struct tnode *) node)->pos >
+                   tn->pos + tn->bits - 1) {
+                        if(tkey_extract_bits(node->key, tn->pos + tn->bits - 1,
+                                             1) == 0)
+                                put_child(t, tn, 2*i, node);
+                        else
+                                put_child(t, tn, 2*i+1, node);
+                        continue;
+                }
+
+                /* An internal node with two children */
+                inode = (struct tnode *) node;
+
+                if (inode->bits == 1) {
+                        put_child(t, tn, 2*i, inode->child[0]);
+                        put_child(t, tn, 2*i+1, inode->child[1]);
+
+                        tnode_free(inode);
+                }
+
+                        /* An internal node with more than two children */
+                else {
+                        struct tnode *left, *right;
+                        int size, j;
+
+                        /* We will replace this node 'inode' with two new 
+                         * ones, 'left' and 'right', each with half of the 
+                         * original children. The two new nodes will have 
+                         * a position one bit further down the key and this 
+                         * means that the "significant" part of their keys 
+                         * (see the discussion near the top of this file) 
+                         * will differ by one bit, which will be "0" in 
+                         * left's key and "1" in right's key. Since we are 
+                         * moving the key position by one step, the bit that 
+                         * we are moving away from - the bit at position 
+                         * (inode->pos) - is the one that will differ between 
+                         * left and right. So... we synthesize that bit in the
+                         * two  new keys.
+                         * The mask 'm' below will be a single "one" bit at 
+                         * the position (inode->pos)
+                         */
+
+                        t_key m = TKEY_GET_MASK(inode->pos, 1);
+ 
+                        /* Use the old key, but set the new significant 
+                         *   bit to zero. 
+                         */
+                        left = tnode_new(inode->key&(~m), inode->pos + 1,
+                                         inode->bits - 1);
+
+                        if(!left) 
+                                trie_bug("tnode_new failed");
+                        
+                        
+                        /* Use the old key, but set the new significant 
+                         * bit to one. 
+                         */
+                        right = tnode_new(inode->key|m, inode->pos + 1,
+                                          inode->bits - 1);
+
+                        if(!right) 
+                                trie_bug("tnode_new failed");
+                        
+                        size = tnode_child_length(left);
+                        for(j = 0; j < size; j++) {
+                                put_child(t, left, j, inode->child[j]);
+                                put_child(t, right, j, inode->child[j + size]);
+                        }
+                        put_child(t, tn, 2*i, resize(t, left));
+                        put_child(t, tn, 2*i+1, resize(t, right));
+
+                        tnode_free(inode);
+                }
+        }
+        tnode_free(oldtnode);
+        return tn;
+}
+
+static struct tnode *halve(struct trie *t, struct tnode *tn)
+{
+        struct tnode *oldtnode = tn;
+        struct node *left, *right;
+        int i;
+        int olen = tnode_child_length(tn);
+
+        if(trie_debug) printk("In halve\n");
+  
+        tn=tnode_new(oldtnode->key, oldtnode->pos, oldtnode->bits - 1);
+
+        if(!tn) 
+                trie_bug("tnode_new failed");
+
+        for(i = 0; i < olen; i += 2) {
+                left = tnode_get_child(oldtnode, i);
+                right = tnode_get_child(oldtnode, i+1);
+    
+                /* At least one of the children is empty */
+                if (left == NULL) {
+                        if (right == NULL)    /* Both are empty */
+                                continue;
+                        put_child(t, tn, i/2, right);
+                } else if (right == NULL)
+                        put_child(t, tn, i/2, left);
+     
+                /* Two nonempty children */
+                else {
+                        struct tnode *newBinNode =
+                                tnode_new(left->key, tn->pos + tn->bits, 1);
+
+                        if(!newBinNode) 
+                                trie_bug("tnode_new failed");
+
+                        put_child(t, newBinNode, 0, left);
+                        put_child(t, newBinNode, 1, right);
+                        put_child(t, tn, i/2, resize(t, newBinNode));
+                }
+        }
+        tnode_free(oldtnode);
+        return tn;
+}
+
+static void *trie_init(struct trie *t)
+{
+        if(t) {
+                t->size = 0;
+                t->trie = NULL;
+                t->revision = 0;
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+                memset(&t->stats, 0, sizeof(struct trie_use_stats));
+#endif
+        }
+        return t;
+}
+
+static struct leaf_info *find_leaf_info(struct hlist_head *head, int plen)
+{
+        struct hlist_node *node;
+        struct leaf_info *li;
+
+        hlist_for_each_entry(li, node, head, hlist) {
+                  
+                if ( li->plen == plen )
+                        return li;
+        }
+        return NULL;
+}
+
+static inline struct list_head * get_fa_head(struct leaf *l, int plen)
+{
+        struct list_head *fa_head=NULL;
+        struct leaf_info *li = find_leaf_info(&l->list, plen);
+        
+        if(li) 
+                fa_head = &li->falh;
+        
+        return fa_head;
+}
+
+static void insert_leaf_info(struct hlist_head *head, struct leaf_info *new)
+{
+        struct leaf_info *li=NULL, *last=NULL;
+        struct hlist_node *node, *tmp;
+
+        write_lock_bh(&fib_lock);
+        
+        if(hlist_empty(head))
+                hlist_add_head(&new->hlist, head);
+        else {
+                hlist_for_each_entry_safe(li, node, tmp, head, hlist) {
+                        
+                        if (new->plen > li->plen) 
+                                break;
+                        
+                        last = li;
+                }
+                if(last) 
+                        hlist_add_after(&last->hlist, &new->hlist);
+                else 
+                        hlist_add_before(&new->hlist, &li->hlist);
+        }
+        write_unlock_bh(&fib_lock);
+}
+
+static struct leaf *
+fib_find_node(struct trie *t, u32 key)
+{
+        int pos;
+        struct tnode *tn;
+        struct node *n;
+
+        pos = 0;
+        n=t->trie;
+
+        while (n != NULL &&  NODE_TYPE(n) == T_TNODE) {
+                tn = (struct tnode *) n;
+                        
+                check_tnode(tn);
+                        
+                if(tkey_sub_equals(tn->key, pos, tn->pos-pos, key)) {
+                        pos=tn->pos + tn->bits;
+                        n = tnode_get_child(tn, tkey_extract_bits(key, tn->pos, tn->bits));
+                }
+                else
+                        break;
+        }
+        /* Case we have found a leaf. Compare prefixes */
+
+        if (n != NULL && IS_LEAF(n) && tkey_equals(key, n->key)) {
+                struct leaf *l = (struct leaf *) n;
+                return l;
+        }
+        return NULL;
+}
+
+static struct node *trie_rebalance(struct trie *t, struct tnode *tn)
+{
+        int i = 0;
+        int wasfull;
+        t_key cindex, key;
+        struct tnode *tp = NULL;
+
+        if(!tn) 
+                BUG();
+        
+        key = tn->key;
+        i = 0;
+
+        while (tn != NULL && NODE_PARENT(tn) != NULL) {
+
+                if( i > 10 ) {
+                        printk("Rebalance tn=%p \n", tn);
+                        if(tn)          printk("tn->parent=%p \n", NODE_PARENT(tn));
+                        
+                        printk("Rebalance tp=%p \n", tp);
+                        if(tp)          printk("tp->parent=%p \n", NODE_PARENT(tp));
+                }
+
+                if( i > 12 ) BUG();
+                i++;
+
+                tp = NODE_PARENT(tn);
+                cindex = tkey_extract_bits(key, tp->pos, tp->bits);
+                wasfull = tnode_full(tp, tnode_get_child(tp, cindex));
+                tn = (struct tnode *) resize (t, (struct tnode *)tn);
+                tnode_put_child_reorg((struct tnode *)tp, cindex,(struct node*)tn, wasfull);
+                
+                if(!NODE_PARENT(tn))
+                        break;
+
+                tn = NODE_PARENT(tn);
+        }
+        /* Handle last (top) tnode */
+        if (IS_TNODE(tn)) 
+                tn = (struct tnode*) resize(t, (struct tnode *)tn);
+
+        return (struct node*) tn;
+}
+
+static struct list_head *
+fib_insert_node(struct trie *t, u32 key, int plen)
+{
+        int pos, newpos;
+        struct tnode *tp = NULL, *tn = NULL;
+        struct node *n;
+        struct leaf *l;
+        int missbit;
+        struct list_head *fa_head=NULL;
+        struct leaf_info *li;
+        t_key cindex;
+
+        pos = 0;
+        n=t->trie;
+
+        /* If we point to NULL, stop. Either the tree is empty and we should 
+         * just put a new leaf in if, or we have reached an empty child slot, 
+         * and we should just put our new leaf in that.
+         * If we point to a T_TNODE, check if it matches our key. Note that 
+         * a T_TNODE might be skipping any number of bits - its 'pos' need 
+         * not be the parent's 'pos'+'bits'!
+         *
+         * If it does match the current key, get pos/bits from it, extract 
+         * the index from our key, push the T_TNODE and walk the tree.
+         *
+         * If it doesn't, we have to replace it with a new T_TNODE.
+         *
+         * If we point to a T_LEAF, it might or might not have the same key 
+         * as we do. If it does, just change the value, update the T_LEAF's 
+         * value, and return it. 
+         * If it doesn't, we need to replace it with a T_TNODE.
+         */
+
+        while (n != NULL &&  NODE_TYPE(n) == T_TNODE) {
+                tn = (struct tnode *) n;
+                        
+                check_tnode(tn);
+                
+                if(tkey_sub_equals(tn->key, pos, tn->pos-pos, key)) {
+                        tp = tn;
+                        pos=tn->pos + tn->bits;
+                        n = tnode_get_child(tn, tkey_extract_bits(key, tn->pos, tn->bits));
+
+                        if(n && NODE_PARENT(n) != tn) {
+                                printk("BUG tn=%p, n->parent=%p\n", tn, NODE_PARENT(n));
+                                BUG();
+                        }
+                }
+                else
+                        break;
+        }
+
+        /*
+         * n  ----> NULL, LEAF or TNODE
+         *
+         * tp is n's (parent) ----> NULL or TNODE  
+         */
+
+        if(tp && IS_LEAF(tp))
+                BUG();
+
+        t->revision++;
+
+        /* Case 1: n is a leaf. Compare prefixes */
+
+        if (n != NULL && IS_LEAF(n) && tkey_equals(key, n->key)) { 
+                struct leaf *l = ( struct leaf *)  n;
+                
+                li = leaf_info_new(plen);
+                
+                if(! li) 
+                        BUG();
+
+                fa_head = &li->falh;
+                insert_leaf_info(&l->list, li);
+                goto done;
+        }
+        t->size++;
+        l = leaf_new();
+
+        if(! l) 
+                BUG();
+
+        l->key = key;
+        li = leaf_info_new(plen);
+
+        if(! li) 
+                BUG();
+
+        fa_head = &li->falh;
+        insert_leaf_info(&l->list, li);
+
+        /* Case 2: n is NULL, and will just insert a new leaf */
+        if (t->trie && n == NULL) {
+
+                NODE_SET_PARENT(l, tp);
+                
+                if (!tp) 
+                        BUG();
+
+                else {
+                        cindex = tkey_extract_bits(key, tp->pos, tp->bits);
+                        put_child(t, (struct tnode *)tp, cindex, (struct node *)l);
+                }
+        }
+        /* Case 3: n is a LEAF or a TNODE and the key doesn't match. */
+        else {
+                /* 
+                 *  Add a new tnode here 
+                 *  first tnode need some special handling
+                 */
+
+                if (tp)
+                        pos=tp->pos+tp->bits;
+                else
+                        pos=0;
+                if(n) {
+                        newpos = tkey_mismatch(key, pos, n->key);
+                        tn = tnode_new(n->key, newpos, 1);
+                }
+                else {
+                        newpos = 0;
+                        tn = tnode_new(key, newpos, 1); /* First tnode */ 
+                }
+                if(!tn) 
+                        trie_bug("tnode_pfx_new failed");
+
+                NODE_SET_PARENT(tn, tp);
+
+                missbit=tkey_extract_bits(key, newpos, 1);
+                put_child(t, tn, missbit, (struct node *)l);
+                put_child(t, tn, 1-missbit, n);
+
+                if(tp) {
+                        cindex = tkey_extract_bits(key, tp->pos, tp->bits);
+                        put_child(t, (struct tnode *)tp, cindex, (struct node *)tn);
+                }
+                else { 
+                        t->trie = (struct node*) tn; /* First tnode */
+                        tp = tn;
+                }
+        }
+        if(tp && tp->pos+tp->bits > 32) {
+                printk("ERROR tp=%p pos=%d, bits=%d, key=%0x plen=%d\n", 
+                       tp, tp->pos, tp->bits, key, plen);
+        }
+        /* Rebalance the trie */
+        t->trie = trie_rebalance(t, tp);
+done:;
+        return fa_head;
+}
+
+static int
+fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
+               struct nlmsghdr *nlhdr, struct netlink_skb_parms *req)
+{
+        struct trie *t = (struct trie *) tb->tb_data;
+        struct fib_alias *fa, *new_fa;
+        struct list_head *fa_head=NULL;
+        struct fib_info *fi;
+        int plen = r->rtm_dst_len;
+        int type = r->rtm_type;
+        u8 tos = r->rtm_tos;
+        u32 key, mask;
+        int err;
+        struct leaf *l;
+
+        if (plen > 32)
+                return -EINVAL;
+
+        key = 0;
+        if (rta->rta_dst) 
+                memcpy(&key, rta->rta_dst, 4);
+
+        key = ntohl(key);
+
+        if(trie_debug)
+                printk("Insert table=%d %08x/%d\n", tb->tb_id, key, plen);
+
+        mask =  ntohl( inet_make_mask(plen) );
+
+        if(key & ~mask)
+                return -EINVAL;
+
+        key = key & mask;
+
+        if  ((fi = fib_create_info(r, rta, nlhdr, &err)) == NULL)
+                goto err;
+
+        l = fib_find_node(t, key);
+        fa = NULL;      
+
+        if(l) {
+                fa_head = get_fa_head(l, plen);
+                fa = fib_find_alias(fa_head, tos, fi->fib_priority);
+        }
+
+        /* Now fa, if non-NULL, points to the first fib alias
+         * with the same keys [prefix,tos,priority], if such key already
+         * exists or to the node before which we will insert new one.
+         *
+         * If fa is NULL, we will need to allocate a new one and
+         * insert to the head of f.
+         *
+         * If f is NULL, no fib node matched the destination key
+         * and we need to allocate a new one of those as well.
+         */
+
+        if (fa &&
+            fa->fa_info->fib_priority == fi->fib_priority) {
+                struct fib_alias *fa_orig;
+
+                err = -EEXIST;
+                if (nlhdr->nlmsg_flags & NLM_F_EXCL)
+                        goto out;
+
+                if (nlhdr->nlmsg_flags & NLM_F_REPLACE) {
+                        struct fib_info *fi_drop;
+                        u8 state;
+
+                        write_lock_bh(&fib_lock);
+
+                        fi_drop = fa->fa_info;
+                        fa->fa_info = fi;
+                        fa->fa_type = type;
+                        fa->fa_scope = r->rtm_scope;
+                        state = fa->fa_state;
+                        fa->fa_state &= ~FA_S_ACCESSED;
+
+                        write_unlock_bh(&fib_lock);
+
+                        fib_release_info(fi_drop);
+                        if (state & FA_S_ACCESSED)
+                          rt_cache_flush(-1);
+
+                            goto succeeded;
+                }
+                /* Error if we find a perfect match which
+                 * uses the same scope, type, and nexthop
+                 * information.
+                 */
+                fa_orig = fa;
+                list_for_each_entry(fa, fa_orig->fa_list.prev, fa_list) {
+                        if (fa->fa_tos != tos)
+                                break;
+                        if (fa->fa_info->fib_priority != fi->fib_priority)
+                                break;
+                        if (fa->fa_type == type &&
+                            fa->fa_scope == r->rtm_scope &&
+                            fa->fa_info == fi) {
+                                goto out;
+                        }
+                }
+                if (!(nlhdr->nlmsg_flags & NLM_F_APPEND))
+                        fa = fa_orig;
+        }
+        err = -ENOENT;
+        if (!(nlhdr->nlmsg_flags&NLM_F_CREATE))
+                goto out;
+
+        err = -ENOBUFS;
+        new_fa = kmem_cache_alloc(fn_alias_kmem, SLAB_KERNEL);
+        if (new_fa == NULL)
+                goto out;
+
+        new_fa->fa_info = fi;
+        new_fa->fa_tos = tos;
+        new_fa->fa_type = type;
+        new_fa->fa_scope = r->rtm_scope;
+        new_fa->fa_state = 0;
+#if 0
+        new_fa->dst  = NULL;
+#endif
+        /*
+         * Insert new entry to the list.
+         */
+
+        if(!fa_head)
+                fa_head = fib_insert_node(t, key, plen);
+
+        write_lock_bh(&fib_lock);
+
+        list_add_tail(&new_fa->fa_list,
+                 (fa ? &fa->fa_list : fa_head));
+
+        write_unlock_bh(&fib_lock);
+
+        rt_cache_flush(-1);
+        rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id, nlhdr, req);
+succeeded:
+        return 0;
+out:
+        fib_release_info(fi);
+err:;   
+        return err;
+}
+
+static inline int check_leaf(struct trie *t, struct leaf *l,  t_key key, int *plen, const struct flowi *flp, 
+                             struct fib_result *res, int *err)
+{
+        int i;
+        t_key mask;
+        struct leaf_info *li;
+        struct hlist_head *hhead = &l->list;
+        struct hlist_node *node;
+        
+        hlist_for_each_entry(li, node, hhead, hlist) {
+
+                i = li->plen;
+                mask = ntohl(inet_make_mask(i));
+                if (l->key != (key & mask)) 
+                        continue;
+
+                if (((*err) = fib_semantic_match(&li->falh, flp, res, l->key, mask, i)) == 0) {
+                        *plen = i;
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+                        t->stats.semantic_match_passed++;
+#endif
+                        return 1;
+                }
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+                t->stats.semantic_match_miss++;
+#endif
+        }
+        return 0;
+}
+
+static int
+fn_trie_lookup(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
+{
+        struct trie *t = (struct trie *) tb->tb_data;
+        int plen, ret = 0;
+        struct node *n;
+        struct tnode *pn;
+        int pos, bits;
+        t_key key=ntohl(flp->fl4_dst);
+        int chopped_off;
+        t_key cindex = 0;
+        int current_prefix_length = KEYLENGTH;
+        n = t->trie;
+
+        read_lock(&fib_lock);
+        if(!n)
+                goto failed;
+
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+        t->stats.gets++;
+#endif
+
+        /* Just a leaf? */
+        if (IS_LEAF(n)) {
+                if( check_leaf(t, (struct leaf *)n, key, &plen, flp, res, &ret) )
+                        goto found;
+                goto failed;
+        }
+        pn = (struct tnode *) n;
+        chopped_off = 0;
+        
+        while (pn) {
+
+                pos = pn->pos;
+                bits = pn->bits;
+
+                if(!chopped_off) 
+                        cindex = tkey_extract_bits(MASK_PFX(key, current_prefix_length), pos, bits);
+
+                n = tnode_get_child(pn, cindex);
+
+                if (n == NULL) {
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+                        t->stats.null_node_hit++;
+#endif
+                        goto backtrace;
+                }
+
+                if (IS_TNODE(n)) {
+#define HL_OPTIMIZE
+#ifdef HL_OPTIMIZE
+                        struct tnode *cn = (struct tnode *)n;
+                        t_key node_prefix, key_prefix, pref_mismatch;
+                        int mp;
+
+                        /*
+                         * It's a tnode, and we can do some extra checks here if we 
+                         * like, to avoid descending into a dead-end branch.
+                         * This tnode is in the parent's child array at index 
+                         * key[p_pos..p_pos+p_bits] but potentially with some bits 
+                         * chopped off, so in reality the index may be just a 
+                         * subprefix, padded with zero at the end.
+                         * We can also take a look at any skipped bits in this 
+                         * tnode - everything up to p_pos is supposed to be ok, 
+                         * and the non-chopped bits of the index (se previous
+                         * paragraph) are also guaranteed ok, but the rest is 
+                         * considered unknown.
+                         *
+                         * The skipped bits are key[pos+bits..cn->pos].
+                         */
+                        
+                        /* If current_prefix_length < pos+bits, we are already doing 
+                         * actual prefix  matching, which means everything from 
+                         * pos+(bits-chopped_off) onward must be zero along some 
+                         * branch of this subtree - otherwise there is *no* valid 
+                         * prefix present. Here we can only check the skipped
+                         * bits. Remember, since we have already indexed into the 
+                         * parent's child array, we know that the bits we chopped of 
+                         * *are* zero.
+                         */
+
+                        /* NOTA BENE: CHECKING ONLY SKIPPED BITS FOR THE NEW NODE HERE */
+                        
+                        if (current_prefix_length < pos+bits) {
+                                if (tkey_extract_bits(cn->key, current_prefix_length,
+                                                      cn->pos - current_prefix_length) != 0 ||
+                                    !(cn->child[0]))
+                                        goto backtrace;
+                        }
+
+                        /*
+                         * If chopped_off=0, the index is fully validated and we 
+                         * only need to look at the skipped bits for this, the new, 
+                         * tnode. What we actually want to do is to find out if
+                         * these skipped bits match our key perfectly, or if we will
+                         * have to count on finding a matching prefix further down, 
+                         * because if we do, we would like to have some way of 
+                         * verifying the existence of such a prefix at this point. 
+                         */
+
+                        /* The only thing we can do at this point is to verify that
+                         * any such matching prefix can indeed be a prefix to our
+                         * key, and if the bits in the node we are inspecting that
+                         * do not match our key are not ZERO, this cannot be true.
+                         * Thus, find out where there is a mismatch (before cn->pos)
+                         * and verify that all the mismatching bits are zero in the
+                         * new tnode's key.
+                         */
+
+                        /* Note: We aren't very concerned about the piece of the key 
+                         * that precede pn->pos+pn->bits, since these have already been 
+                         * checked. The bits after cn->pos aren't checked since these are 
+                         * by definition "unknown" at this point. Thus, what we want to 
+                         * see is if we are about to enter the "prefix matching" state, 
+                         * and in that case verify that the skipped bits that will prevail 
+                         * throughout this subtree are zero, as they have to be if we are 
+                         * to find a matching prefix.
+                         */
+
+                        node_prefix = MASK_PFX(cn->key, cn->pos);
+                        key_prefix =  MASK_PFX(key, cn->pos);
+                        pref_mismatch = key_prefix^node_prefix;
+                        mp = 0;
+
+                        /* In short: If skipped bits in this node do not match the search 
+                         * key, enter the "prefix matching" state.directly.
+                         */
+                        if (pref_mismatch) {
+                                while (!(pref_mismatch & (1<<(KEYLENGTH-1)))) {
+                                        mp++;
+                                        pref_mismatch = pref_mismatch <<1;
+                                }
+                                key_prefix = tkey_extract_bits(cn->key, mp, cn->pos-mp);
+                                
+                                if (key_prefix != 0)
+                                        goto backtrace;
+
+                                if (current_prefix_length >= cn->pos)
+                                        current_prefix_length=mp;
+                       }
+#endif
+                       pn = (struct tnode *)n; /* Descend */
+                       chopped_off = 0;
+                       continue;
+                } 
+                if (IS_LEAF(n)) {       
+                        if( check_leaf(t, (struct leaf *)n, key, &plen, flp, res, &ret))
+                                goto found;
+               }
+backtrace:
+                chopped_off++;
+
+                /* As zero don't change the child key (cindex) */
+                while ((chopped_off <= pn->bits) && !(cindex & (1<<(chopped_off-1)))) {
+                        chopped_off++;
+                }
+
+                /* Decrease current_... with bits chopped off */
+                if (current_prefix_length > pn->pos + pn->bits - chopped_off)
+                        current_prefix_length = pn->pos + pn->bits - chopped_off;
+                
+                /*
+                 * Either we do the actual chop off according or if we have 
+                 * chopped off all bits in this tnode walk up to our parent.
+                 */
+
+                if(chopped_off <= pn->bits)
+                        cindex &= ~(1 << (chopped_off-1));
+                else {
+                        if( NODE_PARENT(pn) == NULL)
+                                goto failed;
+                        
+                        /* Get Child's index */
+                        cindex = tkey_extract_bits(pn->key, NODE_PARENT(pn)->pos, NODE_PARENT(pn)->bits);
+                        pn = NODE_PARENT(pn);
+                        chopped_off = 0;
+
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+                        t->stats.backtrack++;
+#endif
+                        goto backtrace;
+                } 
+        }
+failed:
+        ret =  1;
+found:
+        read_unlock(&fib_lock);
+        return ret;
+}
+
+static int trie_leaf_remove(struct trie *t, t_key key)
+{
+        t_key cindex;
+        struct tnode *tp = NULL;
+        struct node *n = t->trie;
+        struct leaf *l;
+
+        if(trie_debug) 
+                printk("entering trie_leaf_remove(%p)\n", n);
+
+        /* Note that in the case skipped bits, those bits are *not* checked!
+         * When we finish this, we will have NULL or a T_LEAF, and the 
+         * T_LEAF may or may not match our key.
+         */
+
+        while (n != NULL && IS_TNODE(n)) {
+                struct tnode *tn = (struct tnode *) n;
+                check_tnode(tn);
+                n = tnode_get_child(tn ,tkey_extract_bits(key, tn->pos, tn->bits));
+
+                        if(n && NODE_PARENT(n) != tn) {
+                                printk("BUG tn=%p, n->parent=%p\n", tn, NODE_PARENT(n));
+                                BUG();
+                        }
+        }
+        l = (struct leaf *) n;
+
+        if(!n || !tkey_equals(l->key, key)) 
+                return 0;
+    
+        /* 
+         * Key found. 
+         * Remove the leaf and rebalance the tree 
+         */
+
+        t->revision++;
+        t->size--;
+
+        tp = NODE_PARENT(n);
+        tnode_free((struct tnode *) n);
+
+        if(tp) {
+                cindex = tkey_extract_bits(key, tp->pos, tp->bits);
+                put_child(t, (struct tnode *)tp, cindex, NULL);
+                t->trie = trie_rebalance(t, tp);
+        }
+        else
+                t->trie = NULL;
+
+        return 1;
+}
+
+static int
+fn_trie_delete(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
+               struct nlmsghdr *nlhdr, struct netlink_skb_parms *req)
+{
+        struct trie *t = (struct trie *) tb->tb_data;
+        u32 key, mask;
+        int plen = r->rtm_dst_len;
+        u8 tos = r->rtm_tos;
+        struct fib_alias *fa, *fa_to_delete;
+        struct list_head *fa_head;
+        struct leaf *l;
+
+        if (plen > 32) 
+                return -EINVAL;
+
+        key = 0;
+        if (rta->rta_dst) 
+                memcpy(&key, rta->rta_dst, 4);
+
+        key = ntohl(key);
+        mask =  ntohl( inet_make_mask(plen) );
+
+        if(key & ~mask)
+                return -EINVAL;
+
+        key = key & mask;
+        l = fib_find_node(t, key);
+
+        if(!l)
+                return -ESRCH;
+
+        fa_head = get_fa_head(l, plen);
+        fa = fib_find_alias(fa_head, tos, 0);
+
+        if (!fa)
+                return -ESRCH;
+
+        if (trie_debug)
+                printk("Deleting %08x/%d tos=%d t=%p\n", key, plen, tos, t);
+
+        fa_to_delete = NULL;
+        fa_head = fa->fa_list.prev;
+        list_for_each_entry(fa, fa_head, fa_list) {
+                struct fib_info *fi = fa->fa_info;
+
+                if (fa->fa_tos != tos)
+                        break;
+
+                if ((!r->rtm_type ||
+                     fa->fa_type == r->rtm_type) &&
+                    (r->rtm_scope == RT_SCOPE_NOWHERE ||
+                     fa->fa_scope == r->rtm_scope) &&
+                    (!r->rtm_protocol ||
+                     fi->fib_protocol == r->rtm_protocol) &&
+                    fib_nh_match(r, nlhdr, rta, fi) == 0) {
+                        fa_to_delete = fa;
+                        break;
+                }
+        }
+
+        if (fa_to_delete) {
+                int kill_li = 0;
+                struct leaf_info *li;
+
+                fa = fa_to_delete;
+                rtmsg_fib(RTM_DELROUTE, htonl(key), fa, plen, tb->tb_id, nlhdr, req);
+
+                l = fib_find_node(t, key);
+                li = find_leaf_info(&l->list, plen);
+
+                write_lock_bh(&fib_lock);
+
+                list_del(&fa->fa_list);
+
+                if(list_empty(fa_head)) {
+                        hlist_del(&li->hlist);
+                        kill_li = 1;
+                }
+                write_unlock_bh(&fib_lock);
+                
+                if(kill_li)
+                        free_leaf_info(li);
+
+                if(hlist_empty(&l->list))
+                        trie_leaf_remove(t, key);
+
+                if (fa->fa_state & FA_S_ACCESSED)
+                        rt_cache_flush(-1);
+
+                fn_free_alias(fa);
+                return 0;
+        }
+        return -ESRCH;
+}
+
+static int trie_flush_list(struct trie *t, struct list_head *head)
+{
+        struct fib_alias *fa, *fa_node;
+        int found = 0;
+
+        list_for_each_entry_safe(fa, fa_node, head, fa_list) {
+                struct fib_info *fi = fa->fa_info;
+                
+                if (fi && (fi->fib_flags&RTNH_F_DEAD)) {
+
+                        write_lock_bh(&fib_lock);       
+                        list_del(&fa->fa_list);
+                        write_unlock_bh(&fib_lock); 
+
+                        fn_free_alias(fa);
+                        found++;
+                }
+        }
+        return found;
+}
+
+static int trie_flush_leaf(struct trie *t, struct leaf *l)
+{
+        int found = 0;
+        struct hlist_head *lih = &l->list;
+        struct hlist_node *node, *tmp;
+        struct leaf_info *li = NULL;
+
+        hlist_for_each_entry_safe(li, node, tmp, lih, hlist) {
+                        
+                found += trie_flush_list(t, &li->falh);
+
+                if (list_empty(&li->falh)) {
+
+                        write_lock_bh(&fib_lock); 
+                        hlist_del(&li->hlist);
+                        write_unlock_bh(&fib_lock); 
+
+                        free_leaf_info(li);
+                }
+        }
+        return found;
+}
+
+static struct leaf *nextleaf(struct trie *t, struct leaf *thisleaf)
+{
+        struct node *c = (struct node *) thisleaf;
+        struct tnode *p;
+        int idx;
+
+        if(c == NULL) {
+                if(t->trie == NULL)
+                        return NULL;
+
+                if (IS_LEAF(t->trie))          /* trie w. just a leaf */
+                        return (struct leaf *) t->trie;
+
+                p = (struct tnode*) t->trie;  /* Start */
+        }
+        else 
+                p = (struct tnode *) NODE_PARENT(c);
+        while (p) {
+                int pos, last;
+
+                /*  Find the next child of the parent */
+                if(c)
+                        pos  = 1 + tkey_extract_bits(c->key, p->pos, p->bits);
+                else 
+                        pos = 0;
+
+                last = 1 << p->bits;
+                for(idx = pos; idx < last ; idx++) {
+                        if( p->child[idx]) {
+
+                                /* Decend if tnode */
+
+                                while (IS_TNODE(p->child[idx])) {
+                                        p = (struct tnode*) p->child[idx];
+                                        idx = 0;
+                                        
+                                        /* Rightmost non-NULL branch */
+                                        if( p && IS_TNODE(p) )
+                                                while ( p->child[idx] == NULL && idx < (1 << p->bits) ) idx++;
+
+                                        /* Done with this tnode? */
+                                        if( idx >= (1 << p->bits) || p->child[idx] == NULL ) 
+                                                goto up;
+                                }
+                                return (struct leaf*) p->child[idx];
+                        }
+                }
+up:
+                /* No more children go up one step  */
+                c = (struct node*) p;
+                p = (struct tnode *) NODE_PARENT(p);
+        }
+        return NULL; /* Ready. Root of trie */
+}
+
+static int fn_trie_flush(struct fib_table *tb)
+{
+        struct trie *t = (struct trie *) tb->tb_data;
+        struct leaf *ll = NULL, *l = NULL;
+        int found = 0, h;
+
+        t->revision++;
+
+        for (h=0; (l = nextleaf(t, l)) != NULL; h++) {
+                found += trie_flush_leaf(t, l);
+
+                if (ll && hlist_empty(&ll->list))
+                        trie_leaf_remove(t, ll->key);
+                ll = l;
+        }
+
+        if (ll && hlist_empty(&ll->list))
+                trie_leaf_remove(t, ll->key);
+
+        if(trie_debug) 
+                printk("trie_flush found=%d\n", found);
+        return found;
+}
+
+static int trie_last_dflt=-1;
+
+static void
+fn_trie_select_default(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
+{
+        struct trie *t = (struct trie *) tb->tb_data;
+        int order, last_idx;
+        struct fib_info *fi = NULL;
+        struct fib_info *last_resort;
+        struct fib_alias *fa = NULL;
+        struct list_head *fa_head;
+        struct leaf *l;
+
+        last_idx = -1;
+        last_resort = NULL;
+        order = -1;
+
+        read_lock(&fib_lock);
+        
+        l = fib_find_node(t, 0);
+        if(!l) 
+                goto out;
+
+        fa_head = get_fa_head(l, 0);
+        if(!fa_head)
+                goto out;
+
+        if (list_empty(fa_head)) 
+                goto out;
+
+        list_for_each_entry(fa, fa_head, fa_list) {
+                struct fib_info *next_fi = fa->fa_info;
+                
+                if (fa->fa_scope != res->scope ||
+                    fa->fa_type != RTN_UNICAST)
+                        continue;
+                
+                if (next_fi->fib_priority > res->fi->fib_priority)
+                        break;
+                if (!next_fi->fib_nh[0].nh_gw ||
+                    next_fi->fib_nh[0].nh_scope != RT_SCOPE_LINK)
+                        continue;
+                fa->fa_state |= FA_S_ACCESSED;
+                
+                if (fi == NULL) {
+                        if (next_fi != res->fi)
+                                break;
+                } else if (!fib_detect_death(fi, order, &last_resort,
+                                             &last_idx, &trie_last_dflt)) {
+                        if (res->fi)
+                                fib_info_put(res->fi);
+                        res->fi = fi;
+                        atomic_inc(&fi->fib_clntref);
+                        trie_last_dflt = order;
+                        goto out;
+                }
+                fi = next_fi;
+                order++;
+        }
+        if (order <= 0 || fi == NULL) {
+                trie_last_dflt = -1;
+                goto out;
+        }
+
+        if (!fib_detect_death(fi, order, &last_resort, &last_idx, &trie_last_dflt)) {
+                if (res->fi)
+                        fib_info_put(res->fi);
+                res->fi = fi;
+                atomic_inc(&fi->fib_clntref);
+                trie_last_dflt = order;
+                goto out;
+        }
+        if (last_idx >= 0) {
+                if (res->fi)
+                        fib_info_put(res->fi);
+                res->fi = last_resort;
+                if (last_resort)
+                        atomic_inc(&last_resort->fib_clntref);
+        }
+        trie_last_dflt = last_idx;
+ out:;
+        read_unlock(&fib_lock); 
+}
+
+static int fn_trie_dump_fa(t_key key, int plen, struct list_head *fah, struct fib_table *tb, 
+                           struct sk_buff *skb, struct netlink_callback *cb)
+{
+        int i, s_i;
+        struct fib_alias *fa;
+
+        u32 xkey=htonl(key);
+
+        s_i=cb->args[3];
+        i = 0;
+
+        list_for_each_entry(fa, fah, fa_list) {
+                if (i < s_i) {
+                        i++;
+                        continue;
+                }
+                if (fa->fa_info->fib_nh == NULL) {
+                        printk("Trie error _fib_nh=NULL in fa[%d] k=%08x plen=%d\n", i, key, plen);
+                        i++;
+                        continue;
+                }
+                if (fa->fa_info == NULL) {
+                        printk("Trie error fa_info=NULL in fa[%d] k=%08x plen=%d\n", i, key, plen);
+                        i++;
+                        continue;
+                }
+
+                if (fib_dump_info(skb, NETLINK_CB(cb->skb).pid,
+                                  cb->nlh->nlmsg_seq,
+                                  RTM_NEWROUTE,
+                                  tb->tb_id,
+                                  fa->fa_type,
+                                  fa->fa_scope,
+                                  &xkey,
+                                  plen,
+                                  fa->fa_tos,
+                                  fa->fa_info, 0) < 0) {
+                        cb->args[3] = i;
+                        return -1;
+                        }
+                i++;
+        }
+        cb->args[3]=i;
+        return skb->len;
+}
+
+static int fn_trie_dump_plen(struct trie *t, int plen, struct fib_table *tb, struct sk_buff *skb, 
+                             struct netlink_callback *cb)
+{
+        int h, s_h;
+        struct list_head *fa_head;
+        struct leaf *l = NULL;
+        s_h=cb->args[2];
+
+        for (h=0; (l = nextleaf(t, l)) != NULL; h++) {
+
+                if (h < s_h)
+                        continue;
+                if (h > s_h)
+                        memset(&cb->args[3], 0,
+                               sizeof(cb->args) - 3*sizeof(cb->args[0]));
+
+                fa_head = get_fa_head(l, plen);
+                
+                if(!fa_head)
+                        continue;
+
+                if(list_empty(fa_head))
+                        continue;
+
+                if (fn_trie_dump_fa(l->key, plen, fa_head, tb, skb, cb)<0) {
+                        cb->args[2]=h;
+                        return -1;
+                }
+        }
+        cb->args[2]=h;
+        return skb->len;
+}
+
+static int fn_trie_dump(struct fib_table *tb, struct sk_buff *skb, struct netlink_callback *cb)
+{
+        int m, s_m;
+        struct trie *t = (struct trie *) tb->tb_data;
+
+        s_m = cb->args[1];
+
+        read_lock(&fib_lock);
+        for (m=0; m<=32; m++) {
+
+                if (m < s_m)
+                        continue;
+                if (m > s_m)
+                        memset(&cb->args[2], 0,
+                               sizeof(cb->args) - 2*sizeof(cb->args[0]));
+
+                if (fn_trie_dump_plen(t, 32-m, tb, skb, cb)<0) {
+                        cb->args[1] = m;
+                        goto out;
+                }
+        }
+        read_unlock(&fib_lock);
+        cb->args[1] = m;
+        return skb->len;
+ out:
+        read_unlock(&fib_lock);
+        return -1;
+}
+
+/* Fix more generic FIB names for init later */
+
+#ifdef CONFIG_IP_MULTIPLE_TABLES
+struct fib_table * fib_hash_init(int id)
+#else
+struct fib_table * __init fib_hash_init(int id)
+#endif
+{
+        struct fib_table *tb;
+        struct trie *t;
+
+        if (fn_alias_kmem == NULL)
+                fn_alias_kmem = kmem_cache_create("ip_fib_alias",
+                                                  sizeof(struct fib_alias),
+                                                  0, SLAB_HWCACHE_ALIGN,
+                                                  NULL, NULL);
+
+        tb = kmalloc(sizeof(struct fib_table) + sizeof(struct trie),
+                     GFP_KERNEL);
+        if (tb == NULL)
+                return NULL;
+
+        tb->tb_id = id;
+        tb->tb_lookup = fn_trie_lookup;
+        tb->tb_insert = fn_trie_insert;
+        tb->tb_delete = fn_trie_delete;
+        tb->tb_flush = fn_trie_flush;
+        tb->tb_select_default = fn_trie_select_default;
+        tb->tb_dump = fn_trie_dump;
+        memset(tb->tb_data, 0, sizeof(struct trie));
+
+        t = (struct trie *) tb->tb_data;
+
+        trie_init(t);
+
+        if (id == RT_TABLE_LOCAL) 
+                trie_local=t;
+          else if (id == RT_TABLE_MAIN) 
+                trie_main=t;
+
+        if (id == RT_TABLE_LOCAL)
+                printk("IPv4 FIB: Using LC-trie version %s\n", VERSION);
+
+        return tb;
+}
+
+/* Trie dump functions */
+
+static void putspace_seq(struct seq_file *seq, int n)
+{
+        while (n--) seq_printf(seq, " ");
+}
+
+static void printbin_seq(struct seq_file *seq, unsigned int v, int bits)
+{
+        while (bits--)
+                seq_printf(seq, "%s", (v & (1<<bits))?"1":"0");
+}
+
+static void printnode_seq(struct seq_file *seq, int indent, struct node *n, 
+                   int pend, int cindex, int bits)
+{
+        putspace_seq(seq, indent);
+        if (IS_LEAF(n))
+                seq_printf(seq, "|");
+        else
+                seq_printf(seq, "+");
+        if (bits) {
+                seq_printf(seq, "%d/", cindex);
+                printbin_seq(seq, cindex, bits);
+                seq_printf(seq, ": ");
+        }
+        else
+                seq_printf(seq, "<root>: ");
+        seq_printf(seq, "%s:%p ", IS_LEAF(n)?"Leaf":"Internal node", n);
+
+        if (IS_LEAF(n))
+                seq_printf(seq, "key=%d.%d.%d.%d\n", 
+                           n->key >> 24, (n->key >> 16) % 256, (n->key >> 8) % 256, n->key % 256);
+        else {
+                int plen=((struct tnode *)n)->pos;
+                t_key prf=MASK_PFX(n->key, plen);
+                seq_printf(seq, "key=%d.%d.%d.%d/%d\n", 
+                           prf >> 24, (prf >> 16) % 256, (prf >> 8) % 256, prf % 256, plen);
+        }
+        if (IS_LEAF(n)) {
+                struct leaf *l=(struct leaf *)n;
+                struct fib_alias *fa;
+                int i;
+                for (i=32; i>=0; i--)
+                  if(find_leaf_info(&l->list, i)) {
+                        
+                                struct list_head *fa_head = get_fa_head(l, i);
+                                
+                                if(!fa_head)
+                                        continue;
+
+                                if(list_empty(fa_head))
+                                        continue;
+
+                                putspace_seq(seq, indent+2);
+                                seq_printf(seq, "{/%d...dumping}\n", i);
+
+
+                                list_for_each_entry(fa, fa_head, fa_list) {
+                                        putspace_seq(seq, indent+2);
+                                        if (fa->fa_info->fib_nh == NULL) {
+                                                seq_printf(seq, "Error _fib_nh=NULL\n");
+                                                continue;
+                                        }
+                                        if (fa->fa_info == NULL) {
+                                                seq_printf(seq, "Error fa_info=NULL\n");
+                                                continue;
+                                        }
+
+                                        seq_printf(seq, "{type=%d scope=%d TOS=%d}\n",
+                                              fa->fa_type,
+                                              fa->fa_scope,
+                                              fa->fa_tos);
+                                }
+                        }
+        }
+        else if (IS_TNODE(n)) {
+                struct tnode *tn=(struct tnode *)n;
+                putspace_seq(seq, indent); seq_printf(seq, "|    ");
+                seq_printf(seq, "{key prefix=%08x/", tn->key&TKEY_GET_MASK(0, tn->pos));
+                printbin_seq(seq, tkey_extract_bits(tn->key, 0, tn->pos), tn->pos);
+                seq_printf(seq, "}\n");
+                putspace_seq(seq, indent); seq_printf(seq, "|    ");
+                seq_printf(seq, "{pos=%d", tn->pos);
+                seq_printf(seq, " (skip=%d bits)", tn->pos - pend);
+                seq_printf(seq, " bits=%d (%u children)}\n", tn->bits, (1 << tn->bits));
+                putspace_seq(seq, indent); seq_printf(seq, "|    ");
+                seq_printf(seq, "{empty=%d full=%d}\n", tn->empty_children, tn->full_children);
+        }
+}
+
+static void trie_dump_seq(struct seq_file *seq, struct trie *t)
+{
+        struct node *n=t->trie;
+        int cindex=0;
+        int indent=1;
+        int pend=0;
+        int depth = 0;
+
+        read_lock(&fib_lock);
+
+        seq_printf(seq, "------ trie_dump of t=%p ------\n", t);
+        if (n) {
+                printnode_seq(seq, indent, n, pend, cindex, 0);
+                if (IS_TNODE(n)) {
+                        struct tnode *tn=(struct tnode *)n;
+                        pend = tn->pos+tn->bits;
+                        putspace_seq(seq, indent); seq_printf(seq, "\\--\n");
+                        indent += 3;
+                        depth++;
+
+                        while (tn && cindex < (1 << tn->bits)) {
+                                if (tn->child[cindex]) {
+                                        
+                                        /* Got a child */
+                                        
+                                        printnode_seq(seq, indent, tn->child[cindex], pend, cindex, tn->bits);
+                                        if (IS_LEAF(tn->child[cindex])) { 
+                                                cindex++;
+                                                
+                                        }
+                                        else {
+                                                /* 
+                                                 * New tnode. Decend one level 
+                                                 */
+                                                
+                                                depth++;
+                                                n=tn->child[cindex];
+                                                tn=(struct tnode *)n;
+                                                pend=tn->pos+tn->bits;
+                                                putspace_seq(seq, indent); seq_printf(seq, "\\--\n");
+                                                indent+=3;
+                                                cindex=0;
+                                        }
+                                }
+                                else 
+                                        cindex++;
+
+                                /*
+                                 * Test if we are done 
+                                 */
+                                
+                                while (cindex >= (1 << tn->bits)) {
+
+                                        /*
+                                         * Move upwards and test for root
+                                         * pop off all traversed  nodes
+                                         */
+                                        
+                                        if (NODE_PARENT(tn) == NULL) {
+                                                tn = NULL;
+                                                n = NULL;
+                                                break;
+                                        }
+                                        else {
+                                                cindex = tkey_extract_bits(tn->key, NODE_PARENT(tn)->pos, NODE_PARENT(tn)->bits);
+                                                tn = NODE_PARENT(tn);
+                                                cindex++;
+                                                n=(struct node *)tn;
+                                                pend=tn->pos+tn->bits;
+                                                indent-=3;
+                                                depth--;
+                                        }
+                                }
+                        }
+                }
+                else n = NULL;
+        }
+        else seq_printf(seq, "------ trie is empty\n");
+
+        read_unlock(&fib_lock);
+}
+
+static struct trie_stat *trie_stat_new(void)
+{
+        struct trie_stat *s = kmalloc(sizeof(struct trie_stat), GFP_KERNEL);
+        int i;
+        
+        if(s) {
+                s->totdepth = 0;
+                s->maxdepth = 0;
+                s->tnodes = 0;
+                s->leaves = 0;
+                s->nullpointers = 0;
+                
+                for(i=0; i< MAX_CHILDS; i++)
+                        s->nodesizes[i] = 0;
+        }
+        return s;
+}    
+
+static struct trie_stat *trie_collect_stats(struct trie *t)
+{
+        struct node *n=t->trie;
+        struct trie_stat *s = trie_stat_new();
+        int cindex = 0;
+        int indent = 1;
+        int pend = 0;
+        int depth = 0;
+
+        read_lock(&fib_lock);           
+
+        if (s) {
+                if (n) {
+                        if (IS_TNODE(n)) {
+                                struct tnode *tn = (struct tnode *)n;
+                                pend=tn->pos+tn->bits;
+                                indent += 3;
+                                s->nodesizes[tn->bits]++;
+                                depth++;
+
+                                while (tn && cindex < (1 << tn->bits)) {
+                                        if (tn->child[cindex]) {
+                                                /* Got a child */
+                                        
+                                                if (IS_LEAF(tn->child[cindex])) { 
+                                                        cindex++;
+                                                
+                                                        /* stats */
+                                                        if (depth > s->maxdepth)
+                                                                s->maxdepth = depth;
+                                                        s->totdepth += depth;
+                                                        s->leaves++;
+                                                }
+                                        
+                                                else {
+                                                        /* 
+                                                         * New tnode. Decend one level 
+                                                         */
+                                                
+                                                        s->tnodes++;
+                                                        s->nodesizes[tn->bits]++;
+                                                        depth++;
+                                                
+                                                        n = tn->child[cindex];
+                                                        tn = (struct tnode *)n;
+                                                        pend = tn->pos+tn->bits;
+
+                                                        indent += 3;
+                                                        cindex = 0;
+                                                }
+                                        }
+                                        else {
+                                                cindex++;
+                                                s->nullpointers++; 
+                                        }
+
+                                        /*
+                                         * Test if we are done 
+                                         */
+                                
+                                        while (cindex >= (1 << tn->bits)) {
+
+                                                /*
+                                                 * Move upwards and test for root
+                                                 * pop off all traversed  nodes
+                                                 */
+
+                                                
+                                                if (NODE_PARENT(tn) == NULL) {
+                                                        tn = NULL;
+                                                        n = NULL;
+                                                        break;
+                                                }
+                                                else {
+                                                        cindex = tkey_extract_bits(tn->key, NODE_PARENT(tn)->pos, NODE_PARENT(tn)->bits);
+                                                        tn = NODE_PARENT(tn);
+                                                        cindex++; 
+                                                        n = (struct node *)tn;
+                                                        pend=tn->pos+tn->bits;
+                                                        indent -= 3;
+                                                        depth--;
+                                                }
+                                        }
+                                }
+                        }
+                        else n = NULL;
+                }
+        }
+
+        read_unlock(&fib_lock);         
+        return s;
+}
+
+#ifdef CONFIG_PROC_FS
+
+static struct fib_alias *fib_triestat_get_first(struct seq_file *seq)
+{
+        return NULL;
+}
+
+static struct fib_alias *fib_triestat_get_next(struct seq_file *seq)
+{
+        return NULL;
+}
+
+static void *fib_triestat_seq_start(struct seq_file *seq, loff_t *pos)
+{
+        void *v = NULL;
+
+        if (ip_fib_main_table)
+                v = *pos ? fib_triestat_get_next(seq) : SEQ_START_TOKEN;
+        return v;
+}
+
+static void *fib_triestat_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+        ++*pos;
+        return v == SEQ_START_TOKEN ? fib_triestat_get_first(seq) : fib_triestat_get_next(seq);
+}
+
+static void fib_triestat_seq_stop(struct seq_file *seq, void *v)
+{
+
+}
+
+/* 
+ *      This outputs /proc/net/fib_triestats
+ *
+ *      It always works in backward compatibility mode.
+ *      The format of the file is not supposed to be changed.
+ */
+
+static void collect_and_show(struct trie *t, struct seq_file *seq)
+{
+        int bytes = 0; /* How many bytes are used, a ref is 4 bytes */
+        int i, max, pointers;
+        struct trie_stat *stat;
+        int avdepth;
+
+        stat = trie_collect_stats(t);
+
+        bytes=0;
+        seq_printf(seq, "trie=%p\n", t);
+
+        if (stat) {
+                if (stat->leaves)
+                        avdepth=stat->totdepth*100 / stat->leaves;
+                else
+                        avdepth=0;
+                seq_printf(seq, "Aver depth: %d.%02d\n", avdepth / 100, avdepth % 100 );
+                seq_printf(seq, "Max depth: %4d\n", stat->maxdepth);
+                                
+                seq_printf(seq, "Leaves: %d\n", stat->leaves);
+                bytes += sizeof(struct leaf) * stat->leaves;
+                seq_printf(seq, "Internal nodes: %d\n", stat->tnodes);
+                bytes += sizeof(struct tnode) * stat->tnodes;
+
+                max = MAX_CHILDS-1;
+
+                while (max >= 0 && stat->nodesizes[max] == 0)
+                        max--;
+                pointers = 0;
+
+                for (i = 1; i <= max; i++) 
+                        if (stat->nodesizes[i] != 0) {
+                                seq_printf(seq, "  %d: %d",  i, stat->nodesizes[i]);
+                                pointers += (1<<i) * stat->nodesizes[i];
+                        }
+                seq_printf(seq, "\n");
+                seq_printf(seq, "Pointers: %d\n", pointers);
+                bytes += sizeof(struct node *) * pointers;
+                seq_printf(seq, "Null ptrs: %d\n", stat->nullpointers);
+                seq_printf(seq, "Total size: %d  kB\n", bytes / 1024);
+
+                kfree(stat);
+        }
+
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+        seq_printf(seq, "Counters:\n---------\n");
+        seq_printf(seq,"gets = %d\n", t->stats.gets);
+        seq_printf(seq,"backtracks = %d\n", t->stats.backtrack);
+        seq_printf(seq,"semantic match passed = %d\n", t->stats.semantic_match_passed);
+        seq_printf(seq,"semantic match miss = %d\n", t->stats.semantic_match_miss);
+        seq_printf(seq,"null node hit= %d\n", t->stats.null_node_hit);
+#ifdef CLEAR_STATS
+        memset(&(t->stats), 0, sizeof(t->stats));
+#endif
+#endif /*  CONFIG_IP_FIB_TRIE_STATS */
+}
+
+static int fib_triestat_seq_show(struct seq_file *seq, void *v)
+{
+        char bf[128];
+    
+        if (v == SEQ_START_TOKEN) {
+                seq_printf(seq, "Basic info: size of leaf: %Zd bytes, size of tnode: %Zd bytes.\n", 
+                           sizeof(struct leaf), sizeof(struct tnode));
+                if (trie_local) 
+                        collect_and_show(trie_local, seq);
+
+                if (trie_main) 
+                        collect_and_show(trie_main, seq);
+        }
+        else {
+                snprintf(bf, sizeof(bf),
+                         "*\t%08X\t%08X", 200, 400);
+                
+                seq_printf(seq, "%-127s\n", bf);
+        }
+        return 0;
+}
+
+static struct seq_operations fib_triestat_seq_ops = {
+        .start  = fib_triestat_seq_start,
+        .next   = fib_triestat_seq_next,
+        .stop   = fib_triestat_seq_stop,
+        .show   = fib_triestat_seq_show,
+};
+
+static int fib_triestat_seq_open(struct inode *inode, struct file *file)
+{
+        struct seq_file *seq;
+        int rc = -ENOMEM;
+
+        rc = seq_open(file, &fib_triestat_seq_ops);
+        if (rc)
+                goto out_kfree;
+
+        seq          = file->private_data;
+out:
+        return rc;
+out_kfree:
+        goto out;
+}
+
+static struct file_operations fib_triestat_seq_fops = {
+        .owner          = THIS_MODULE,
+        .open           = fib_triestat_seq_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = seq_release_private,
+};
+
+int __init fib_stat_proc_init(void)
+{
+        if (!proc_net_fops_create("fib_triestat", S_IRUGO, &fib_triestat_seq_fops))
+                return -ENOMEM;
+        return 0;
+}
+
+void __init fib_stat_proc_exit(void)
+{
+        proc_net_remove("fib_triestat");
+}
+
+static struct fib_alias *fib_trie_get_first(struct seq_file *seq)
+{
+        return NULL;
+}
+
+static struct fib_alias *fib_trie_get_next(struct seq_file *seq)
+{
+        return NULL;
+}
+
+static void *fib_trie_seq_start(struct seq_file *seq, loff_t *pos)
+{
+        void *v = NULL;
+
+        if (ip_fib_main_table)
+                v = *pos ? fib_trie_get_next(seq) : SEQ_START_TOKEN;
+        return v;
+}
+
+static void *fib_trie_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+        ++*pos;
+        return v == SEQ_START_TOKEN ? fib_trie_get_first(seq) : fib_trie_get_next(seq);
+}
+
+static void fib_trie_seq_stop(struct seq_file *seq, void *v)
+{
+
+}
+
+/* 
+ *      This outputs /proc/net/fib_trie.
+ *
+ *      It always works in backward compatibility mode.
+ *      The format of the file is not supposed to be changed.
+ */
+
+static int fib_trie_seq_show(struct seq_file *seq, void *v)
+{
+        char bf[128];
+
+        if (v == SEQ_START_TOKEN) {
+                if (trie_local) 
+                        trie_dump_seq(seq, trie_local);
+
+                if (trie_main) 
+                        trie_dump_seq(seq, trie_main);
+        }
+
+        else {
+                snprintf(bf, sizeof(bf),
+                         "*\t%08X\t%08X", 200, 400);
+                seq_printf(seq, "%-127s\n", bf);
+        }
+
+        return 0;
+}
+
+static struct seq_operations fib_trie_seq_ops = {
+        .start  = fib_trie_seq_start,
+        .next   = fib_trie_seq_next,
+        .stop   = fib_trie_seq_stop,
+        .show   = fib_trie_seq_show,
+};
+
+static int fib_trie_seq_open(struct inode *inode, struct file *file)
+{
+        struct seq_file *seq;
+        int rc = -ENOMEM;
+
+        rc = seq_open(file, &fib_trie_seq_ops);
+        if (rc)
+                goto out_kfree;
+
+        seq          = file->private_data;
+out:
+        return rc;
+out_kfree:
+        goto out;
+}
+
+static struct file_operations fib_trie_seq_fops = {
+        .owner          = THIS_MODULE,
+        .open           = fib_trie_seq_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = seq_release_private,
+};
+
+int __init fib_proc_init(void)
+{
+        if (!proc_net_fops_create("fib_trie", S_IRUGO, &fib_trie_seq_fops))
+                return -ENOMEM;
+        return 0;
+}
+
+void __init fib_proc_exit(void)
+{
+        proc_net_remove("fib_trie");
+}
+
+#endif /* CONFIG_PROC_FS */
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 85bf0d3e294b..cb759484979d 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -207,6 +207,7 @@ int sysctl_icmp_ignore_bogus_error_responses;
 
 int sysctl_icmp_ratelimit = 1 * HZ;
 int sysctl_icmp_ratemask = 0x1818;
+int sysctl_icmp_errors_use_inbound_ifaddr;
 
 /*
  *      ICMP control array. This specifies what to do with each ICMP.
@@ -511,8 +512,12 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info)
          */
 
         saddr = iph->daddr;
-        if (!(rt->rt_flags & RTCF_LOCAL))
-                saddr = 0;
+        if (!(rt->rt_flags & RTCF_LOCAL)) {
+                if (sysctl_icmp_errors_use_inbound_ifaddr)
+                        saddr = inet_select_addr(skb_in->dev, 0, RT_SCOPE_LINK);
+                else
+                        saddr = 0;
+        }
 
         tos = icmp_pointers[type].error ? ((iph->tos & IPTOS_TOS_MASK) |
                                            IPTOS_PREC_INTERNETCONTROL) :
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 4e47a2658c7c..af2ec88bbb2f 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -184,6 +184,7 @@ int ip_call_ra_chain(struct sk_buff *skb)
                                         raw_rcv(last, skb2);
                         }
                         last = sk;
+                        nf_reset(skb);
                 }
         }
 
@@ -200,10 +201,6 @@ static inline int ip_local_deliver_finish(struct sk_buff *skb)
 {
         int ihl = skb->nh.iph->ihl*4;
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        nf_debug_ip_local_deliver(skb);
-#endif /*CONFIG_NETFILTER_DEBUG*/
-
         __skb_pull(skb, ihl);
 
         /* Free reference early: we don't need it any more, and it may
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 760dc8238d65..ee07aec215a0 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -107,10 +107,6 @@ static int ip_dev_loopback_xmit(struct sk_buff *newskb)
         newskb->pkt_type = PACKET_LOOPBACK;
         newskb->ip_summed = CHECKSUM_UNNECESSARY;
         BUG_TRAP(newskb->dst);
-
-#ifdef CONFIG_NETFILTER_DEBUG
-        nf_debug_ip_loopback_xmit(newskb);
-#endif
         nf_reset(newskb);
         netif_rx(newskb);
         return 0;
@@ -192,10 +188,6 @@ static inline int ip_finish_output2(struct sk_buff *skb)
                 skb = skb2;
         }
 
-#ifdef CONFIG_NETFILTER_DEBUG
-        nf_debug_ip_finish_output2(skb);
-#endif /*CONFIG_NETFILTER_DEBUG*/
-
         nf_reset(skb);
 
         if (hh) {
@@ -415,9 +407,6 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
         to->nf_bridge = from->nf_bridge;
         nf_bridge_get(to->nf_bridge);
 #endif
-#ifdef CONFIG_NETFILTER_DEBUG
-        to->nf_debug = from->nf_debug;
-#endif
 #endif
 }
 
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 47012b93cad2..f8b172f89811 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -360,14 +360,14 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
         err = copied;
 
         /* Reset and regenerate socket error */
-        spin_lock_irq(&sk->sk_error_queue.lock);
+        spin_lock_bh(&sk->sk_error_queue.lock);
         sk->sk_err = 0;
         if ((skb2 = skb_peek(&sk->sk_error_queue)) != NULL) {
                 sk->sk_err = SKB_EXT_ERR(skb2)->ee.ee_errno;
-                spin_unlock_irq(&sk->sk_error_queue.lock);
+                spin_unlock_bh(&sk->sk_error_queue.lock);
                 sk->sk_error_report(sk);
         } else
-                spin_unlock_irq(&sk->sk_error_queue.lock);
+                spin_unlock_bh(&sk->sk_error_queue.lock);
 
 out_free_skb:   
         kfree_skb(skb);
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 1a23c5263b99..2065944fd9e5 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -236,15 +236,10 @@ static struct xfrm_state *ipcomp_tunnel_create(struct xfrm_state *x)
         t->props.mode = 1;
         t->props.saddr.a4 = x->props.saddr.a4;
         t->props.flags = x->props.flags;
-        
-        t->type = xfrm_get_type(IPPROTO_IPIP, t->props.family);
-        if (t->type == NULL)
-                goto error;
-                
-        if (t->type->init_state(t, NULL))
+
+        if (xfrm_init_state(t))
                 goto error;
 
-        t->km.state = XFRM_STATE_VALID;
         atomic_set(&t->tunnel_users, 1);
 out:
         return t;
@@ -422,7 +417,7 @@ static void ipcomp_destroy(struct xfrm_state *x)
         kfree(ipcd);
 }
 
-static int ipcomp_init_state(struct xfrm_state *x, void *args)
+static int ipcomp_init_state(struct xfrm_state *x)
 {
         int err;
         struct ipcomp_data *ipcd;
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index e21c049ec62a..e4f809a93f47 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1350,6 +1350,7 @@ int ip_mr_input(struct sk_buff *skb)
                              */
                             read_lock(&mrt_lock);
                             if (mroute_socket) {
+                                    nf_reset(skb);
                                     raw_rcv(mroute_socket, skb);
                                     read_unlock(&mrt_lock);
                                     return 0;
diff --git a/net/ipv4/ipvs/Makefile b/net/ipv4/ipvs/Makefile
index a788461a40c9..30e85de9ffff 100644
--- a/net/ipv4/ipvs/Makefile
+++ b/net/ipv4/ipvs/Makefile
@@ -11,7 +11,7 @@ ip_vs_proto-objs-$(CONFIG_IP_VS_PROTO_AH) += ip_vs_proto_ah.o
 
 ip_vs-objs :=   ip_vs_conn.o ip_vs_core.o ip_vs_ctl.o ip_vs_sched.o        \
                 ip_vs_xmit.o ip_vs_app.o ip_vs_sync.o                      \
-                ip_vs_est.o ip_vs_proto.o ip_vs_proto_icmp.o               \
+                ip_vs_est.o ip_vs_proto.o                                  \
                 $(ip_vs_proto-objs-y)
 
 
diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
index 218d9701036e..12a82e91d22a 100644
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ b/net/ipv4/ipvs/ip_vs_ctl.c
@@ -2059,7 +2059,7 @@ ip_vs_copy_service(struct ip_vs_service_entry *dst, struct ip_vs_service *src)
         dst->addr = src->addr;
         dst->port = src->port;
         dst->fwmark = src->fwmark;
-        strcpy(dst->sched_name, src->scheduler->name);
+        strlcpy(dst->sched_name, src->scheduler->name, sizeof(dst->sched_name));
         dst->flags = src->flags;
         dst->timeout = src->timeout / HZ;
         dst->netmask = src->netmask;
@@ -2080,6 +2080,7 @@ __ip_vs_get_service_entries(const struct ip_vs_get_services *get,
                 list_for_each_entry(svc, &ip_vs_svc_table[idx], s_list) {
                         if (count >= get->num_services)
                                 goto out;
+                        memset(&entry, 0, sizeof(entry));
                         ip_vs_copy_service(&entry, svc);
                         if (copy_to_user(&uptr->entrytable[count],
                                          &entry, sizeof(entry))) {
@@ -2094,6 +2095,7 @@ __ip_vs_get_service_entries(const struct ip_vs_get_services *get,
                 list_for_each_entry(svc, &ip_vs_svc_fwm_table[idx], f_list) {
                         if (count >= get->num_services)
                                 goto out;
+                        memset(&entry, 0, sizeof(entry));
                         ip_vs_copy_service(&entry, svc);
                         if (copy_to_user(&uptr->entrytable[count],
                                          &entry, sizeof(entry))) {
@@ -2304,12 +2306,12 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
                 memset(&d, 0, sizeof(d));
                 if (ip_vs_sync_state & IP_VS_STATE_MASTER) {
                         d[0].state = IP_VS_STATE_MASTER;
-                        strcpy(d[0].mcast_ifn, ip_vs_master_mcast_ifn);
+                        strlcpy(d[0].mcast_ifn, ip_vs_master_mcast_ifn, sizeof(d[0].mcast_ifn));
                         d[0].syncid = ip_vs_master_syncid;
                 }
                 if (ip_vs_sync_state & IP_VS_STATE_BACKUP) {
                         d[1].state = IP_VS_STATE_BACKUP;
-                        strcpy(d[1].mcast_ifn, ip_vs_backup_mcast_ifn);
+                        strlcpy(d[1].mcast_ifn, ip_vs_backup_mcast_ifn, sizeof(d[1].mcast_ifn));
                         d[1].syncid = ip_vs_backup_syncid;
                 }
                 if (copy_to_user(user, &d, sizeof(d)) != 0)
diff --git a/net/ipv4/ipvs/ip_vs_proto.c b/net/ipv4/ipvs/ip_vs_proto.c
index 253c46252bd5..867d4e9c6594 100644
--- a/net/ipv4/ipvs/ip_vs_proto.c
+++ b/net/ipv4/ipvs/ip_vs_proto.c
@@ -216,9 +216,6 @@ int ip_vs_protocol_init(void)
 #ifdef CONFIG_IP_VS_PROTO_UDP
         REGISTER_PROTOCOL(&ip_vs_protocol_udp);
 #endif
-#ifdef CONFIG_IP_VS_PROTO_ICMP
-        REGISTER_PROTOCOL(&ip_vs_protocol_icmp);
-#endif
 #ifdef CONFIG_IP_VS_PROTO_AH
         REGISTER_PROTOCOL(&ip_vs_protocol_ah);
 #endif
diff --git a/net/ipv4/ipvs/ip_vs_proto_icmp.c b/net/ipv4/ipvs/ip_vs_proto_icmp.c
deleted file mode 100644
index 191e94aa1c1f..000000000000
--- a/net/ipv4/ipvs/ip_vs_proto_icmp.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * ip_vs_proto_icmp.c:  ICMP load balancing support for IP Virtual Server
- *
- * Authors:     Julian Anastasov <ja@ssi.bg>, March 2002
- *
- *              This program is free software; you can redistribute it and/or
- *              modify it under the terms of the GNU General Public License
- *              version 2 as published by the Free Software Foundation;
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/icmp.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-
-#include <net/ip_vs.h>
-
-
-static int icmp_timeouts[1] =           { 1*60*HZ };
-
-static char * icmp_state_name_table[1] = { "ICMP" };
-
-static struct ip_vs_conn *
-icmp_conn_in_get(const struct sk_buff *skb,
-                 struct ip_vs_protocol *pp,
-                 const struct iphdr *iph,
-                 unsigned int proto_off,
-                 int inverse)
-{
-#if 0
-        struct ip_vs_conn *cp;
-
-        if (likely(!inverse)) {
-                cp = ip_vs_conn_in_get(iph->protocol,
-                        iph->saddr, 0,
-                        iph->daddr, 0);
-        } else {
-                cp = ip_vs_conn_in_get(iph->protocol,
-                        iph->daddr, 0,
-                        iph->saddr, 0);
-        }
-
-        return cp;
-
-#else
-        return NULL;
-#endif
-}
-
-static struct ip_vs_conn *
-icmp_conn_out_get(const struct sk_buff *skb,
-                  struct ip_vs_protocol *pp,
-                  const struct iphdr *iph,
-                  unsigned int proto_off,
-                  int inverse)
-{
-#if 0
-        struct ip_vs_conn *cp;
-
-        if (likely(!inverse)) {
-                cp = ip_vs_conn_out_get(iph->protocol,
-                        iph->saddr, 0,
-                        iph->daddr, 0);
-        } else {
-                cp = ip_vs_conn_out_get(IPPROTO_UDP,
-                        iph->daddr, 0,
-                        iph->saddr, 0);
-        }
-
-        return cp;
-#else
-        return NULL;
-#endif
-}
-
-static int
-icmp_conn_schedule(struct sk_buff *skb, struct ip_vs_protocol *pp,
-                   int *verdict, struct ip_vs_conn **cpp)
-{
-        *verdict = NF_ACCEPT;
-        return 0;
-}
-
-static int
-icmp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
-{
-        if (!(skb->nh.iph->frag_off & __constant_htons(IP_OFFSET))) {
-                if (skb->ip_summed != CHECKSUM_UNNECESSARY) {
-                        if (ip_vs_checksum_complete(skb, skb->nh.iph->ihl * 4)) {
-                                IP_VS_DBG_RL_PKT(0, pp, skb, 0, "Failed checksum for");
-                                return 0;
-                        }
-                }
-        }
-        return 1;
-}
-
-static void
-icmp_debug_packet(struct ip_vs_protocol *pp,
-                  const struct sk_buff *skb,
-                  int offset,
-                  const char *msg)
-{
-        char buf[256];
-        struct iphdr _iph, *ih;
-
-        ih = skb_header_pointer(skb, offset, sizeof(_iph), &_iph);
-        if (ih == NULL)
-                sprintf(buf, "%s TRUNCATED", pp->name);
-        else if (ih->frag_off & __constant_htons(IP_OFFSET))
-                sprintf(buf, "%s %u.%u.%u.%u->%u.%u.%u.%u frag",
-                        pp->name, NIPQUAD(ih->saddr),
-                        NIPQUAD(ih->daddr));
-        else {
-                struct icmphdr _icmph, *ic;
-
-                ic = skb_header_pointer(skb, offset + ih->ihl*4,
-                                        sizeof(_icmph), &_icmph);
-                if (ic == NULL)
-                        sprintf(buf, "%s TRUNCATED to %u bytes\n",
-                                pp->name, skb->len - offset);
-                else
-                        sprintf(buf, "%s %u.%u.%u.%u->%u.%u.%u.%u T:%d C:%d",
-                                pp->name, NIPQUAD(ih->saddr),
-                                NIPQUAD(ih->daddr),
-                                ic->type, ic->code);
-        }
-        printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf);
-}
-
-static int
-icmp_state_transition(struct ip_vs_conn *cp, int direction,
-                      const struct sk_buff *skb,
-                      struct ip_vs_protocol *pp)
-{
-        cp->timeout = pp->timeout_table[IP_VS_ICMP_S_NORMAL];
-        return 1;
-}
-
-static int
-icmp_set_state_timeout(struct ip_vs_protocol *pp, char *sname, int to)
-{
-        int num;
-        char **names;
-
-        num = IP_VS_ICMP_S_LAST;
-        names = icmp_state_name_table;
-        return ip_vs_set_state_timeout(pp->timeout_table, num, names, sname, to);
-}
-
-
-static void icmp_init(struct ip_vs_protocol *pp)
-{
-        pp->timeout_table = icmp_timeouts;
-}
-
-static void icmp_exit(struct ip_vs_protocol *pp)
-{
-}
-
-struct ip_vs_protocol ip_vs_protocol_icmp = {
-        .name =                 "ICMP",
-        .protocol =             IPPROTO_ICMP,
-        .dont_defrag =          0,
-        .init =                 icmp_init,
-        .exit =                 icmp_exit,
-        .conn_schedule =        icmp_conn_schedule,
-        .conn_in_get =          icmp_conn_in_get,
-        .conn_out_get =         icmp_conn_out_get,
-        .snat_handler =         NULL,
-        .dnat_handler =         NULL,
-        .csum_check =           icmp_csum_check,
-        .state_transition =     icmp_state_transition,
-        .register_app =         NULL,
-        .unregister_app =       NULL,
-        .app_conn_bind =        NULL,
-        .debug_packet =         icmp_debug_packet,
-        .timeout_change =       NULL,
-        .set_state_timeout =    icmp_set_state_timeout,
-};
diff --git a/net/ipv4/ipvs/ip_vs_sync.c b/net/ipv4/ipvs/ip_vs_sync.c
index 25c479550a32..574d1f509b46 100644
--- a/net/ipv4/ipvs/ip_vs_sync.c
+++ b/net/ipv4/ipvs/ip_vs_sync.c
@@ -839,10 +839,10 @@ int start_sync_thread(int state, char *mcast_ifn, __u8 syncid)
 
         ip_vs_sync_state |= state;
         if (state == IP_VS_STATE_MASTER) {
-                strcpy(ip_vs_master_mcast_ifn, mcast_ifn);
+                strlcpy(ip_vs_master_mcast_ifn, mcast_ifn, sizeof(ip_vs_master_mcast_ifn));
                 ip_vs_master_syncid = syncid;
         } else {
-                strcpy(ip_vs_backup_mcast_ifn, mcast_ifn);
+                strlcpy(ip_vs_backup_mcast_ifn, mcast_ifn, sizeof(ip_vs_backup_mcast_ifn));
                 ip_vs_backup_syncid = syncid;
         }
 
diff --git a/net/ipv4/ipvs/ip_vs_xmit.c b/net/ipv4/ipvs/ip_vs_xmit.c
index de21da00057f..a8512a3fd08a 100644
--- a/net/ipv4/ipvs/ip_vs_xmit.c
+++ b/net/ipv4/ipvs/ip_vs_xmit.c
@@ -127,7 +127,6 @@ ip_vs_dst_reset(struct ip_vs_dest *dest)
 
 #define IP_VS_XMIT(skb, rt)                             \
 do {                                                    \
-        nf_reset_debug(skb);                            \
         (skb)->nfcache |= NFC_IPVS_PROPERTY;            \
         (skb)->ip_summed = CHECKSUM_NONE;               \
         NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, (skb), NULL,  \
diff --git a/net/ipv4/multipath_drr.c b/net/ipv4/multipath_drr.c
index 9349686131fc..c9cf8726051d 100644
--- a/net/ipv4/multipath_drr.c
+++ b/net/ipv4/multipath_drr.c
@@ -31,6 +31,7 @@
 #include <linux/igmp.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/module.h>
 #include <linux/mroute.h>
 #include <linux/init.h>
 #include <net/ip.h>
@@ -57,7 +58,6 @@ struct multipath_device {
 
 static struct multipath_device state[MULTIPATH_MAX_DEVICECANDIDATES];
 static DEFINE_SPINLOCK(state_lock);
-static struct rtable *last_selection = NULL;
 
 static int inline __multipath_findslot(void)
 {
@@ -111,11 +111,6 @@ struct notifier_block drr_dev_notifier = {
         .notifier_call  = drr_dev_event,
 };
 
-static void drr_remove(struct rtable *rt)
-{
-        if (last_selection == rt)
-                last_selection = NULL;
-}
 
 static void drr_safe_inc(atomic_t *usecount)
 {
@@ -144,14 +139,6 @@ static void drr_select_route(const struct flowi *flp,
         int devidx = -1;
         int cur_min_devidx = -1;
 
-        /* if necessary and possible utilize the old alternative */
-        if ((flp->flags & FLOWI_FLAG_MULTIPATHOLDROUTE) != 0 &&
-            last_selection != NULL) {
-                result = last_selection;
-                *rp = result;
-                return;
-        }
-
         /* 1. make sure all alt. nexthops have the same GC related data */
         /* 2. determine the new candidate to be returned */
         result = NULL;
@@ -229,12 +216,10 @@ static void drr_select_route(const struct flowi *flp,
         }
 
         *rp = result;
-        last_selection = result;
 }
 
 static struct ip_mp_alg_ops drr_ops = {
         .mp_alg_select_route    =       drr_select_route,
-        .mp_alg_remove          =       drr_remove,
 };
 
 static int __init drr_init(void)
@@ -244,7 +229,7 @@ static int __init drr_init(void)
         if (err)
                 return err;
 
-        err = multipath_alg_register(&drr_ops, IP_MP_ALG_RR);
+        err = multipath_alg_register(&drr_ops, IP_MP_ALG_DRR);
         if (err)
                 goto fail;
 
@@ -263,3 +248,4 @@ static void __exit drr_exit(void)
 
 module_init(drr_init);
 module_exit(drr_exit);
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/multipath_random.c b/net/ipv4/multipath_random.c
index 805a16e47de5..5249dbe7c559 100644
--- a/net/ipv4/multipath_random.c
+++ b/net/ipv4/multipath_random.c
@@ -31,6 +31,7 @@
 #include <linux/igmp.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/module.h>
 #include <linux/mroute.h>
 #include <linux/init.h>
 #include <net/ip.h>
@@ -126,3 +127,4 @@ static void __exit random_exit(void)
 
 module_init(random_init);
 module_exit(random_exit);
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/multipath_rr.c b/net/ipv4/multipath_rr.c
index 554a82568160..b6cd2870478f 100644
--- a/net/ipv4/multipath_rr.c
+++ b/net/ipv4/multipath_rr.c
@@ -31,6 +31,7 @@
 #include <linux/igmp.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/module.h>
 #include <linux/mroute.h>
 #include <linux/init.h>
 #include <net/ip.h>
@@ -47,29 +48,12 @@
 #include <net/checksum.h>
 #include <net/ip_mp_alg.h>
 
-#define MULTIPATH_MAX_CANDIDATES 40
-
-static struct rtable* last_used = NULL;
-
-static void rr_remove(struct rtable *rt)
-{
-        if (last_used == rt)
-                last_used = NULL;
-}
-
 static void rr_select_route(const struct flowi *flp,
                             struct rtable *first, struct rtable **rp)
 {
         struct rtable *nh, *result, *min_use_cand = NULL;
         int min_use = -1;
 
-        /* if necessary and possible utilize the old alternative */
-        if ((flp->flags & FLOWI_FLAG_MULTIPATHOLDROUTE) != 0 &&
-            last_used != NULL) {
-                result = last_used;
-                goto out;
-        }
-
         /* 1. make sure all alt. nexthops have the same GC related data
          * 2. determine the new candidate to be returned
          */
@@ -90,15 +74,12 @@ static void rr_select_route(const struct flowi *flp,
         if (!result)
                 result = first;
 
-out:
-        last_used = result;
         result->u.dst.__use++;
         *rp = result;
 }
 
 static struct ip_mp_alg_ops rr_ops = {
         .mp_alg_select_route    =       rr_select_route,
-        .mp_alg_remove          =       rr_remove,
 };
 
 static int __init rr_init(void)
@@ -113,3 +94,4 @@ static void __exit rr_exit(void)
 
 module_init(rr_init);
 module_exit(rr_exit);
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/multipath_wrandom.c b/net/ipv4/multipath_wrandom.c
index c3d2ca1a6781..bd7d75b6abe0 100644
--- a/net/ipv4/multipath_wrandom.c
+++ b/net/ipv4/multipath_wrandom.c
@@ -31,6 +31,7 @@
 #include <linux/igmp.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/module.h>
 #include <linux/mroute.h>
 #include <linux/init.h>
 #include <net/ip.h>
@@ -342,3 +343,4 @@ static void __exit wrandom_exit(void)
 
 module_init(wrandom_init);
 module_exit(wrandom_exit);
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index df79f5ed6a0a..fa1634256680 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -60,7 +60,6 @@ static DECLARE_MUTEX(arpt_mutex);
 
 #define ASSERT_READ_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
 #define ASSERT_WRITE_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
 struct arpt_table_info {
diff --git a/net/ipv4/netfilter/ip_conntrack_amanda.c b/net/ipv4/netfilter/ip_conntrack_amanda.c
index 3dbddd062605..a78a320eee08 100644
--- a/net/ipv4/netfilter/ip_conntrack_amanda.c
+++ b/net/ipv4/netfilter/ip_conntrack_amanda.c
@@ -26,7 +26,6 @@
 #include <net/checksum.h>
 #include <net/udp.h>
 
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/ip_conntrack_amanda.h>
 
@@ -42,7 +41,7 @@ static char *conns[] = { "DATA ", "MESG ", "INDEX " };
 
 /* This is slow, but it's simple. --RR */
 static char amanda_buffer[65536];
-static DECLARE_LOCK(amanda_buffer_lock);
+static DEFINE_SPINLOCK(amanda_buffer_lock);
 
 unsigned int (*ip_nat_amanda_hook)(struct sk_buff **pskb,
                                    enum ip_conntrack_info ctinfo,
@@ -76,7 +75,7 @@ static int help(struct sk_buff **pskb,
                 return NF_ACCEPT;
         }
 
-        LOCK_BH(&amanda_buffer_lock);
+        spin_lock_bh(&amanda_buffer_lock);
         skb_copy_bits(*pskb, dataoff, amanda_buffer, (*pskb)->len - dataoff);
         data = amanda_buffer;
         data_limit = amanda_buffer + (*pskb)->len - dataoff;
@@ -134,7 +133,7 @@ static int help(struct sk_buff **pskb,
         }
 
 out:
-        UNLOCK_BH(&amanda_buffer_lock);
+        spin_unlock_bh(&amanda_buffer_lock);
         return ret;
 }
 
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c
index 09e824622977..4b78ebeb6635 100644
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -38,10 +38,10 @@
 #include <linux/percpu.h>
 #include <linux/moduleparam.h>
 
-/* This rwlock protects the main hash table, protocol/helper/expected
+/* ip_conntrack_lock protects the main hash table, protocol/helper/expected
    registrations, conntrack timers*/
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_conntrack_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_conntrack_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
@@ -57,7 +57,7 @@
 #define DEBUGP(format, args...)
 #endif
 
-DECLARE_RWLOCK(ip_conntrack_lock);
+DEFINE_RWLOCK(ip_conntrack_lock);
 
 /* ip_conntrack_standalone needs this */
 atomic_t ip_conntrack_count = ATOMIC_INIT(0);
@@ -147,7 +147,7 @@ static void destroy_expect(struct ip_conntrack_expect *exp)
 
 static void unlink_expect(struct ip_conntrack_expect *exp)
 {
-        MUST_BE_WRITE_LOCKED(&ip_conntrack_lock);
+        ASSERT_WRITE_LOCK(&ip_conntrack_lock);
         list_del(&exp->list);
         /* Logically in destroy_expect, but we hold the lock here. */
         exp->master->expecting--;
@@ -157,9 +157,9 @@ static void expectation_timed_out(unsigned long ul_expect)
 {
         struct ip_conntrack_expect *exp = (void *)ul_expect;
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         unlink_expect(exp);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
         destroy_expect(exp);
 }
 
@@ -209,7 +209,7 @@ clean_from_lists(struct ip_conntrack *ct)
         unsigned int ho, hr;
         
         DEBUGP("clean_from_lists(%p)\n", ct);
-        MUST_BE_WRITE_LOCKED(&ip_conntrack_lock);
+        ASSERT_WRITE_LOCK(&ip_conntrack_lock);
 
         ho = hash_conntrack(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
         hr = hash_conntrack(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
@@ -240,7 +240,7 @@ destroy_conntrack(struct nf_conntrack *nfct)
         if (ip_conntrack_destroyed)
                 ip_conntrack_destroyed(ct);
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         /* Expectations will have been removed in clean_from_lists,
          * except TFTP can create an expectation on the first packet,
          * before connection is in the list, so we need to clean here,
@@ -254,7 +254,7 @@ destroy_conntrack(struct nf_conntrack *nfct)
         }
 
         CONNTRACK_STAT_INC(delete);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 
         if (ct->master)
                 ip_conntrack_put(ct->master);
@@ -268,12 +268,12 @@ static void death_by_timeout(unsigned long ul_conntrack)
 {
         struct ip_conntrack *ct = (void *)ul_conntrack;
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         /* Inside lock so preempt is disabled on module removal path.
          * Otherwise we can get spurious warnings. */
         CONNTRACK_STAT_INC(delete_list);
         clean_from_lists(ct);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
         ip_conntrack_put(ct);
 }
 
@@ -282,7 +282,7 @@ conntrack_tuple_cmp(const struct ip_conntrack_tuple_hash *i,
                     const struct ip_conntrack_tuple *tuple,
                     const struct ip_conntrack *ignored_conntrack)
 {
-        MUST_BE_READ_LOCKED(&ip_conntrack_lock);
+        ASSERT_READ_LOCK(&ip_conntrack_lock);
         return tuplehash_to_ctrack(i) != ignored_conntrack
                 && ip_ct_tuple_equal(tuple, &i->tuple);
 }
@@ -294,7 +294,7 @@ __ip_conntrack_find(const struct ip_conntrack_tuple *tuple,
         struct ip_conntrack_tuple_hash *h;
         unsigned int hash = hash_conntrack(tuple);
 
-        MUST_BE_READ_LOCKED(&ip_conntrack_lock);
+        ASSERT_READ_LOCK(&ip_conntrack_lock);
         list_for_each_entry(h, &ip_conntrack_hash[hash], list) {
                 if (conntrack_tuple_cmp(h, tuple, ignored_conntrack)) {
                         CONNTRACK_STAT_INC(found);
@@ -313,11 +313,11 @@ ip_conntrack_find_get(const struct ip_conntrack_tuple *tuple,
 {
         struct ip_conntrack_tuple_hash *h;
 
-        READ_LOCK(&ip_conntrack_lock);
+        read_lock_bh(&ip_conntrack_lock);
         h = __ip_conntrack_find(tuple, ignored_conntrack);
         if (h)
                 atomic_inc(&tuplehash_to_ctrack(h)->ct_general.use);
-        READ_UNLOCK(&ip_conntrack_lock);
+        read_unlock_bh(&ip_conntrack_lock);
 
         return h;
 }
@@ -352,7 +352,7 @@ __ip_conntrack_confirm(struct sk_buff **pskb)
         IP_NF_ASSERT(!is_confirmed(ct));
         DEBUGP("Confirming conntrack %p\n", ct);
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
 
         /* See if there's one in the list already, including reverse:
            NAT could have grabbed it without realizing, since we're
@@ -380,12 +380,12 @@ __ip_conntrack_confirm(struct sk_buff **pskb)
                 atomic_inc(&ct->ct_general.use);
                 set_bit(IPS_CONFIRMED_BIT, &ct->status);
                 CONNTRACK_STAT_INC(insert);
-                WRITE_UNLOCK(&ip_conntrack_lock);
+                write_unlock_bh(&ip_conntrack_lock);
                 return NF_ACCEPT;
         }
 
         CONNTRACK_STAT_INC(insert_failed);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 
         return NF_DROP;
 }
@@ -398,9 +398,9 @@ ip_conntrack_tuple_taken(const struct ip_conntrack_tuple *tuple,
 {
         struct ip_conntrack_tuple_hash *h;
 
-        READ_LOCK(&ip_conntrack_lock);
+        read_lock_bh(&ip_conntrack_lock);
         h = __ip_conntrack_find(tuple, ignored_conntrack);
-        READ_UNLOCK(&ip_conntrack_lock);
+        read_unlock_bh(&ip_conntrack_lock);
 
         return h != NULL;
 }
@@ -419,13 +419,13 @@ static int early_drop(struct list_head *chain)
         struct ip_conntrack *ct = NULL;
         int dropped = 0;
 
-        READ_LOCK(&ip_conntrack_lock);
+        read_lock_bh(&ip_conntrack_lock);
         h = LIST_FIND_B(chain, unreplied, struct ip_conntrack_tuple_hash *);
         if (h) {
                 ct = tuplehash_to_ctrack(h);
                 atomic_inc(&ct->ct_general.use);
         }
-        READ_UNLOCK(&ip_conntrack_lock);
+        read_unlock_bh(&ip_conntrack_lock);
 
         if (!ct)
                 return dropped;
@@ -508,7 +508,7 @@ init_conntrack(const struct ip_conntrack_tuple *tuple,
         conntrack->timeout.data = (unsigned long)conntrack;
         conntrack->timeout.function = death_by_timeout;
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         exp = find_expectation(tuple);
 
         if (exp) {
@@ -532,7 +532,7 @@ init_conntrack(const struct ip_conntrack_tuple *tuple,
         list_add(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL].list, &unconfirmed);
 
         atomic_inc(&ip_conntrack_count);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 
         if (exp) {
                 if (exp->expectfn)
@@ -723,17 +723,17 @@ void ip_conntrack_unexpect_related(struct ip_conntrack_expect *exp)
 {
         struct ip_conntrack_expect *i;
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         /* choose the the oldest expectation to evict */
         list_for_each_entry_reverse(i, &ip_conntrack_expect_list, list) {
                 if (expect_matches(i, exp) && del_timer(&i->timeout)) {
                         unlink_expect(i);
-                        WRITE_UNLOCK(&ip_conntrack_lock);
+                        write_unlock_bh(&ip_conntrack_lock);
                         destroy_expect(i);
                         return;
                 }
         }
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 }
 
 struct ip_conntrack_expect *ip_conntrack_expect_alloc(void)
@@ -760,15 +760,11 @@ static void ip_conntrack_expect_insert(struct ip_conntrack_expect *exp)
         exp->master->expecting++;
         list_add(&exp->list, &ip_conntrack_expect_list);
 
-        if (exp->master->helper->timeout) {
-                init_timer(&exp->timeout);
-                exp->timeout.data = (unsigned long)exp;
-                exp->timeout.function = expectation_timed_out;
-                exp->timeout.expires
-                        = jiffies + exp->master->helper->timeout * HZ;
-                add_timer(&exp->timeout);
-        } else
-                exp->timeout.function = NULL;
+        init_timer(&exp->timeout);
+        exp->timeout.data = (unsigned long)exp;
+        exp->timeout.function = expectation_timed_out;
+        exp->timeout.expires = jiffies + exp->master->helper->timeout * HZ;
+        add_timer(&exp->timeout);
 
         CONNTRACK_STAT_INC(expect_create);
 }
@@ -808,7 +804,7 @@ int ip_conntrack_expect_related(struct ip_conntrack_expect *expect)
         DEBUGP("tuple: "); DUMP_TUPLE(&expect->tuple);
         DEBUGP("mask:  "); DUMP_TUPLE(&expect->mask);
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         list_for_each_entry(i, &ip_conntrack_expect_list, list) {
                 if (expect_matches(i, expect)) {
                         /* Refresh timer: if it's dying, ignore.. */
@@ -832,7 +828,7 @@ int ip_conntrack_expect_related(struct ip_conntrack_expect *expect)
         ip_conntrack_expect_insert(expect);
         ret = 0;
 out:
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
         return ret;
 }
 
@@ -841,7 +837,7 @@ out:
 void ip_conntrack_alter_reply(struct ip_conntrack *conntrack,
                               const struct ip_conntrack_tuple *newreply)
 {
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         /* Should be unconfirmed, so not in hash table yet */
         IP_NF_ASSERT(!is_confirmed(conntrack));
 
@@ -851,15 +847,15 @@ void ip_conntrack_alter_reply(struct ip_conntrack *conntrack,
         conntrack->tuplehash[IP_CT_DIR_REPLY].tuple = *newreply;
         if (!conntrack->master && conntrack->expecting == 0)
                 conntrack->helper = ip_ct_find_helper(newreply);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 }
 
 int ip_conntrack_helper_register(struct ip_conntrack_helper *me)
 {
         BUG_ON(me->timeout == 0);
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         list_prepend(&helpers, me);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 
         return 0;
 }
@@ -878,7 +874,7 @@ void ip_conntrack_helper_unregister(struct ip_conntrack_helper *me)
         struct ip_conntrack_expect *exp, *tmp;
 
         /* Need write lock here, to delete helper. */
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         LIST_DELETE(&helpers, me);
 
         /* Get rid of expectations */
@@ -893,7 +889,7 @@ void ip_conntrack_helper_unregister(struct ip_conntrack_helper *me)
         for (i = 0; i < ip_conntrack_htable_size; i++)
                 LIST_FIND_W(&ip_conntrack_hash[i], unhelp,
                             struct ip_conntrack_tuple_hash *, me);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 
         /* Someone could be still looking at the helper in a bh. */
         synchronize_net();
@@ -925,14 +921,14 @@ void ip_ct_refresh_acct(struct ip_conntrack *ct,
                 ct->timeout.expires = extra_jiffies;
                 ct_add_counters(ct, ctinfo, skb);
         } else {
-                WRITE_LOCK(&ip_conntrack_lock);
+                write_lock_bh(&ip_conntrack_lock);
                 /* Need del_timer for race avoidance (may already be dying). */
                 if (del_timer(&ct->timeout)) {
                         ct->timeout.expires = jiffies + extra_jiffies;
                         add_timer(&ct->timeout);
                 }
                 ct_add_counters(ct, ctinfo, skb);
-                WRITE_UNLOCK(&ip_conntrack_lock);
+                write_unlock_bh(&ip_conntrack_lock);
         }
 }
 
@@ -940,10 +936,6 @@ void ip_ct_refresh_acct(struct ip_conntrack *ct,
 struct sk_buff *
 ip_ct_gather_frags(struct sk_buff *skb, u_int32_t user)
 {
-#ifdef CONFIG_NETFILTER_DEBUG
-        unsigned int olddebug = skb->nf_debug;
-#endif
-
         skb_orphan(skb);
 
         local_bh_disable(); 
@@ -953,12 +945,7 @@ ip_ct_gather_frags(struct sk_buff *skb, u_int32_t user)
         if (skb) {
                 ip_send_check(skb->nh.iph);
                 skb->nfcache |= NFC_ALTERED;
-#ifdef CONFIG_NETFILTER_DEBUG
-                /* Packet path as if nothing had happened. */
-                skb->nf_debug = olddebug;
-#endif
         }
-
         return skb;
 }
 
@@ -997,7 +984,7 @@ get_next_corpse(int (*iter)(struct ip_conntrack *i, void *data),
 {
         struct ip_conntrack_tuple_hash *h = NULL;
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         for (; *bucket < ip_conntrack_htable_size; (*bucket)++) {
                 h = LIST_FIND_W(&ip_conntrack_hash[*bucket], do_iter,
                                 struct ip_conntrack_tuple_hash *, iter, data);
@@ -1009,7 +996,7 @@ get_next_corpse(int (*iter)(struct ip_conntrack *i, void *data),
                                 struct ip_conntrack_tuple_hash *, iter, data);
         if (h)
                 atomic_inc(&tuplehash_to_ctrack(h)->ct_general.use);
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 
         return h;
 }
@@ -1201,14 +1188,14 @@ int __init ip_conntrack_init(void)
         }
 
         /* Don't NEED lock here, but good form anyway. */
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         for (i = 0; i < MAX_IP_CT_PROTO; i++)
                 ip_ct_protos[i] = &ip_conntrack_generic_protocol;
         /* Sew in builtin protocols. */
         ip_ct_protos[IPPROTO_TCP] = &ip_conntrack_protocol_tcp;
         ip_ct_protos[IPPROTO_UDP] = &ip_conntrack_protocol_udp;
         ip_ct_protos[IPPROTO_ICMP] = &ip_conntrack_protocol_icmp;
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
 
         for (i = 0; i < ip_conntrack_htable_size; i++)
                 INIT_LIST_HEAD(&ip_conntrack_hash[i]);
diff --git a/net/ipv4/netfilter/ip_conntrack_ftp.c b/net/ipv4/netfilter/ip_conntrack_ftp.c
index dd86503aa788..fea6dd2a00b6 100644
--- a/net/ipv4/netfilter/ip_conntrack_ftp.c
+++ b/net/ipv4/netfilter/ip_conntrack_ftp.c
@@ -16,7 +16,6 @@
 #include <net/checksum.h>
 #include <net/tcp.h>
 
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
 #include <linux/moduleparam.h>
@@ -28,7 +27,7 @@ MODULE_DESCRIPTION("ftp connection tracking helper");
 /* This is slow, but it's simple. --RR */
 static char ftp_buffer[65536];
 
-static DECLARE_LOCK(ip_ftp_lock);
+static DEFINE_SPINLOCK(ip_ftp_lock);
 
 #define MAX_PORTS 8
 static int ports[MAX_PORTS];
@@ -319,7 +318,7 @@ static int help(struct sk_buff **pskb,
         }
         datalen = (*pskb)->len - dataoff;
 
-        LOCK_BH(&ip_ftp_lock);
+        spin_lock_bh(&ip_ftp_lock);
         fb_ptr = skb_header_pointer(*pskb, dataoff,
                                     (*pskb)->len - dataoff, ftp_buffer);
         BUG_ON(fb_ptr == NULL);
@@ -442,7 +441,7 @@ out_update_nl:
         if (ends_in_nl)
                 update_nl_seq(seq, ct_ftp_info,dir);
  out:
-        UNLOCK_BH(&ip_ftp_lock);
+        spin_unlock_bh(&ip_ftp_lock);
         return ret;
 }
 
diff --git a/net/ipv4/netfilter/ip_conntrack_irc.c b/net/ipv4/netfilter/ip_conntrack_irc.c
index 33cc7348b6ee..cd98772cc332 100644
--- a/net/ipv4/netfilter/ip_conntrack_irc.c
+++ b/net/ipv4/netfilter/ip_conntrack_irc.c
@@ -29,7 +29,6 @@
 #include <net/checksum.h>
 #include <net/tcp.h>
 
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/ip_conntrack_irc.h>
 #include <linux/moduleparam.h>
@@ -41,7 +40,7 @@ static int max_dcc_channels = 8;
 static unsigned int dcc_timeout = 300;
 /* This is slow, but it's simple. --RR */
 static char irc_buffer[65536];
-static DECLARE_LOCK(irc_buffer_lock);
+static DEFINE_SPINLOCK(irc_buffer_lock);
 
 unsigned int (*ip_nat_irc_hook)(struct sk_buff **pskb,
                                 enum ip_conntrack_info ctinfo,
@@ -141,7 +140,7 @@ static int help(struct sk_buff **pskb,
         if (dataoff >= (*pskb)->len)
                 return NF_ACCEPT;
 
-        LOCK_BH(&irc_buffer_lock);
+        spin_lock_bh(&irc_buffer_lock);
         ib_ptr = skb_header_pointer(*pskb, dataoff,
                                     (*pskb)->len - dataoff, irc_buffer);
         BUG_ON(ib_ptr == NULL);
@@ -237,7 +236,7 @@ static int help(struct sk_buff **pskb,
         } /* while data < ... */
 
  out:
-        UNLOCK_BH(&irc_buffer_lock);
+        spin_unlock_bh(&irc_buffer_lock);
         return ret;
 }
 
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
index ff8c34a860ff..31d75390bf12 100644
--- a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
@@ -26,7 +26,6 @@
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 #if 0
 #define DEBUGP(format, ...) printk(format, ## __VA_ARGS__)
@@ -35,7 +34,7 @@
 #endif
 
 /* Protects conntrack->proto.sctp */
-static DECLARE_RWLOCK(sctp_lock);
+static DEFINE_RWLOCK(sctp_lock);
 
 /* FIXME: Examine ipfilter's timeouts and conntrack transitions more
    closely.  They're more complex. --RR 
@@ -199,9 +198,9 @@ static int sctp_print_conntrack(struct seq_file *s,
         DEBUGP(__FUNCTION__);
         DEBUGP("\n");
 
-        READ_LOCK(&sctp_lock);
+        read_lock_bh(&sctp_lock);
         state = conntrack->proto.sctp.state;
-        READ_UNLOCK(&sctp_lock);
+        read_unlock_bh(&sctp_lock);
 
         return seq_printf(s, "%s ", sctp_conntrack_names[state]);
 }
@@ -343,13 +342,13 @@ static int sctp_packet(struct ip_conntrack *conntrack,
 
         oldsctpstate = newconntrack = SCTP_CONNTRACK_MAX;
         for_each_sctp_chunk (skb, sch, _sch, offset, count) {
-                WRITE_LOCK(&sctp_lock);
+                write_lock_bh(&sctp_lock);
 
                 /* Special cases of Verification tag check (Sec 8.5.1) */
                 if (sch->type == SCTP_CID_INIT) {
                         /* Sec 8.5.1 (A) */
                         if (sh->vtag != 0) {
-                                WRITE_UNLOCK(&sctp_lock);
+                                write_unlock_bh(&sctp_lock);
                                 return -1;
                         }
                 } else if (sch->type == SCTP_CID_ABORT) {
@@ -357,7 +356,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
                         if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])
                                 && !(sh->vtag == conntrack->proto.sctp.vtag
                                                         [1 - CTINFO2DIR(ctinfo)])) {
-                                WRITE_UNLOCK(&sctp_lock);
+                                write_unlock_bh(&sctp_lock);
                                 return -1;
                         }
                 } else if (sch->type == SCTP_CID_SHUTDOWN_COMPLETE) {
@@ -366,13 +365,13 @@ static int sctp_packet(struct ip_conntrack *conntrack,
                                 && !(sh->vtag == conntrack->proto.sctp.vtag
                                                         [1 - CTINFO2DIR(ctinfo)] 
                                         && (sch->flags & 1))) {
-                                WRITE_UNLOCK(&sctp_lock);
+                                write_unlock_bh(&sctp_lock);
                                 return -1;
                         }
                 } else if (sch->type == SCTP_CID_COOKIE_ECHO) {
                         /* Sec 8.5.1 (D) */
                         if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])) {
-                                WRITE_UNLOCK(&sctp_lock);
+                                write_unlock_bh(&sctp_lock);
                                 return -1;
                         }
                 }
@@ -384,7 +383,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
                 if (newconntrack == SCTP_CONNTRACK_MAX) {
                         DEBUGP("ip_conntrack_sctp: Invalid dir=%i ctype=%u conntrack=%u\n",
                                CTINFO2DIR(ctinfo), sch->type, oldsctpstate);
-                        WRITE_UNLOCK(&sctp_lock);
+                        write_unlock_bh(&sctp_lock);
                         return -1;
                 }
 
@@ -396,7 +395,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
                         ih = skb_header_pointer(skb, offset + sizeof(sctp_chunkhdr_t),
                                                 sizeof(_inithdr), &_inithdr);
                         if (ih == NULL) {
-                                        WRITE_UNLOCK(&sctp_lock);
+                                        write_unlock_bh(&sctp_lock);
                                         return -1;
                         }
                         DEBUGP("Setting vtag %x for dir %d\n", 
@@ -405,7 +404,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
                 }
 
                 conntrack->proto.sctp.state = newconntrack;
-                WRITE_UNLOCK(&sctp_lock);
+                write_unlock_bh(&sctp_lock);
         }
 
         ip_ct_refresh_acct(conntrack, ctinfo, skb, *sctp_timeouts[newconntrack]);
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
index 721ddbf522b4..809dfed766d4 100644
--- a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
@@ -36,7 +36,6 @@
 #include <linux/netfilter_ipv4.h>
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 #if 0
 #define DEBUGP printk
@@ -46,7 +45,7 @@
 #endif
 
 /* Protects conntrack->proto.tcp */
-static DECLARE_RWLOCK(tcp_lock);
+static DEFINE_RWLOCK(tcp_lock);
 
 /* "Be conservative in what you do, 
     be liberal in what you accept from others." 
@@ -330,9 +329,9 @@ static int tcp_print_conntrack(struct seq_file *s,
 {
         enum tcp_conntrack state;
 
-        READ_LOCK(&tcp_lock);
+        read_lock_bh(&tcp_lock);
         state = conntrack->proto.tcp.state;
-        READ_UNLOCK(&tcp_lock);
+        read_unlock_bh(&tcp_lock);
 
         return seq_printf(s, "%s ", tcp_conntrack_names[state]);
 }
@@ -738,14 +737,14 @@ void ip_conntrack_tcp_update(struct sk_buff *skb,
 
         end = segment_seq_plus_len(ntohl(tcph->seq), skb->len, iph, tcph);
         
-        WRITE_LOCK(&tcp_lock);
+        write_lock_bh(&tcp_lock);
         /*
          * We have to worry for the ack in the reply packet only...
          */
         if (after(end, conntrack->proto.tcp.seen[dir].td_end))
                 conntrack->proto.tcp.seen[dir].td_end = end;
         conntrack->proto.tcp.last_end = end;
-        WRITE_UNLOCK(&tcp_lock);
+        write_unlock_bh(&tcp_lock);
         DEBUGP("tcp_update: sender end=%u maxend=%u maxwin=%u scale=%i "
                "receiver end=%u maxend=%u maxwin=%u scale=%i\n",
                 sender->td_end, sender->td_maxend, sender->td_maxwin,
@@ -857,7 +856,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
                                 sizeof(_tcph), &_tcph);
         BUG_ON(th == NULL);
         
-        WRITE_LOCK(&tcp_lock);
+        write_lock_bh(&tcp_lock);
         old_state = conntrack->proto.tcp.state;
         dir = CTINFO2DIR(ctinfo);
         index = get_conntrack_index(th);
@@ -879,7 +878,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
                          * that the client cannot but retransmit its SYN and 
                          * thus initiate a clean new session.
                          */
-                        WRITE_UNLOCK(&tcp_lock);
+                        write_unlock_bh(&tcp_lock);
                         if (LOG_INVALID(IPPROTO_TCP))
                                 nf_log_packet(PF_INET, 0, skb, NULL, NULL, 
                                           "ip_ct_tcp: killing out of sync session ");
@@ -894,7 +893,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
                 conntrack->proto.tcp.last_end = 
                     segment_seq_plus_len(ntohl(th->seq), skb->len, iph, th);
                 
-                WRITE_UNLOCK(&tcp_lock);
+                write_unlock_bh(&tcp_lock);
                 if (LOG_INVALID(IPPROTO_TCP))
                         nf_log_packet(PF_INET, 0, skb, NULL, NULL, 
                                   "ip_ct_tcp: invalid packet ignored ");
@@ -904,7 +903,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
                 DEBUGP("ip_ct_tcp: Invalid dir=%i index=%u ostate=%u\n",
                        dir, get_conntrack_index(th),
                        old_state);
-                WRITE_UNLOCK(&tcp_lock);
+                write_unlock_bh(&tcp_lock);
                 if (LOG_INVALID(IPPROTO_TCP))
                         nf_log_packet(PF_INET, 0, skb, NULL, NULL, 
                                   "ip_ct_tcp: invalid state ");
@@ -918,13 +917,13 @@ static int tcp_packet(struct ip_conntrack *conntrack,
                              conntrack->proto.tcp.seen[dir].td_end)) {  
                         /* Attempt to reopen a closed connection.
                         * Delete this connection and look up again. */
-                        WRITE_UNLOCK(&tcp_lock);
+                        write_unlock_bh(&tcp_lock);
                         if (del_timer(&conntrack->timeout))
                                 conntrack->timeout.function((unsigned long)
                                                             conntrack);
                         return -NF_REPEAT;
                 } else {
-                        WRITE_UNLOCK(&tcp_lock);
+                        write_unlock_bh(&tcp_lock);
                         if (LOG_INVALID(IPPROTO_TCP))
                                 nf_log_packet(PF_INET, 0, skb, NULL, NULL,
                                               "ip_ct_tcp: invalid SYN");
@@ -949,7 +948,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
 
         if (!tcp_in_window(&conntrack->proto.tcp, dir, index, 
                            skb, iph, th)) {
-                WRITE_UNLOCK(&tcp_lock);
+                write_unlock_bh(&tcp_lock);
                 return -NF_ACCEPT;
         }
     in_window:
@@ -972,7 +971,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
         timeout = conntrack->proto.tcp.retrans >= ip_ct_tcp_max_retrans
                   && *tcp_timeouts[new_state] > ip_ct_tcp_timeout_max_retrans
                   ? ip_ct_tcp_timeout_max_retrans : *tcp_timeouts[new_state];
-        WRITE_UNLOCK(&tcp_lock);
+        write_unlock_bh(&tcp_lock);
 
         if (!test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)) {
                 /* If only reply is a RST, we can consider ourselves not to
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_udp.c b/net/ipv4/netfilter/ip_conntrack_proto_udp.c
index 5bc28a224623..8c1eaba098d4 100644
--- a/net/ipv4/netfilter/ip_conntrack_proto_udp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_udp.c
@@ -120,6 +120,7 @@ static int udp_error(struct sk_buff *skb, enum ip_conntrack_info *ctinfo,
          * and moreover root might send raw packets.
          * FIXME: Source route IP option packets --RR */
         if (hooknum == NF_IP_PRE_ROUTING
+            && skb->ip_summed != CHECKSUM_UNNECESSARY
             && csum_tcpudp_magic(iph->saddr, iph->daddr, udplen, IPPROTO_UDP,
                                  skb->ip_summed == CHECKSUM_HW ? skb->csum
                                  : skb_checksum(skb, iph->ihl*4, udplen, 0))) {
diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c
index 46ca45f74d85..42dc95102873 100644
--- a/net/ipv4/netfilter/ip_conntrack_standalone.c
+++ b/net/ipv4/netfilter/ip_conntrack_standalone.c
@@ -28,8 +28,8 @@
 #include <net/checksum.h>
 #include <net/ip.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_conntrack_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_conntrack_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
@@ -119,7 +119,7 @@ static struct list_head *ct_get_idx(struct seq_file *seq, loff_t pos)
 
 static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
 {
-        READ_LOCK(&ip_conntrack_lock);
+        read_lock_bh(&ip_conntrack_lock);
         return ct_get_idx(seq, *pos);
 }
 
@@ -131,7 +131,7 @@ static void *ct_seq_next(struct seq_file *s, void *v, loff_t *pos)
   
 static void ct_seq_stop(struct seq_file *s, void *v)
 {
-        READ_UNLOCK(&ip_conntrack_lock);
+        read_unlock_bh(&ip_conntrack_lock);
 }
  
 static int ct_seq_show(struct seq_file *s, void *v)
@@ -140,7 +140,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
         const struct ip_conntrack *conntrack = tuplehash_to_ctrack(hash);
         struct ip_conntrack_protocol *proto;
 
-        MUST_BE_READ_LOCKED(&ip_conntrack_lock);
+        ASSERT_READ_LOCK(&ip_conntrack_lock);
         IP_NF_ASSERT(conntrack);
 
         /* we only want to print DIR_ORIGINAL */
@@ -239,7 +239,7 @@ static void *exp_seq_start(struct seq_file *s, loff_t *pos)
 
         /* strange seq_file api calls stop even if we fail,
          * thus we need to grab lock since stop unlocks */
-        READ_LOCK(&ip_conntrack_lock);
+        read_lock_bh(&ip_conntrack_lock);
 
         if (list_empty(e))
                 return NULL;
@@ -256,6 +256,7 @@ static void *exp_seq_next(struct seq_file *s, void *v, loff_t *pos)
 {
         struct list_head *e = v;
 
+        ++*pos;
         e = e->next;
 
         if (e == &ip_conntrack_expect_list)
@@ -266,7 +267,7 @@ static void *exp_seq_next(struct seq_file *s, void *v, loff_t *pos)
 
 static void exp_seq_stop(struct seq_file *s, void *v)
 {
-        READ_UNLOCK(&ip_conntrack_lock);
+        read_unlock_bh(&ip_conntrack_lock);
 }
 
 static int exp_seq_show(struct seq_file *s, void *v)
@@ -920,22 +921,22 @@ int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
 {
         int ret = 0;
 
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         if (ip_ct_protos[proto->proto] != &ip_conntrack_generic_protocol) {
                 ret = -EBUSY;
                 goto out;
         }
         ip_ct_protos[proto->proto] = proto;
  out:
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
         return ret;
 }
 
 void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto)
 {
-        WRITE_LOCK(&ip_conntrack_lock);
+        write_lock_bh(&ip_conntrack_lock);
         ip_ct_protos[proto->proto] = &ip_conntrack_generic_protocol;
-        WRITE_UNLOCK(&ip_conntrack_lock);
+        write_unlock_bh(&ip_conntrack_lock);
         
         /* Somebody could be still looking at the proto in bh. */
         synchronize_net();
diff --git a/net/ipv4/netfilter/ip_nat_core.c b/net/ipv4/netfilter/ip_nat_core.c
index 9fc6f93af0dd..739b6dde1c82 100644
--- a/net/ipv4/netfilter/ip_nat_core.c
+++ b/net/ipv4/netfilter/ip_nat_core.c
@@ -22,8 +22,8 @@
 #include <linux/udp.h>
 #include <linux/jhash.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_core.h>
@@ -41,7 +41,7 @@
 #define DEBUGP(format, args...)
 #endif
 
-DECLARE_RWLOCK(ip_nat_lock);
+DEFINE_RWLOCK(ip_nat_lock);
 
 /* Calculated at init based on memory size */
 static unsigned int ip_nat_htable_size;
@@ -65,9 +65,9 @@ static void ip_nat_cleanup_conntrack(struct ip_conntrack *conn)
         if (!(conn->status & IPS_NAT_DONE_MASK))
                 return;
 
-        WRITE_LOCK(&ip_nat_lock);
+        write_lock_bh(&ip_nat_lock);
         list_del(&conn->nat.info.bysource);
-        WRITE_UNLOCK(&ip_nat_lock);
+        write_unlock_bh(&ip_nat_lock);
 }
 
 /* We do checksum mangling, so if they were wrong before they're still
@@ -142,7 +142,7 @@ find_appropriate_src(const struct ip_conntrack_tuple *tuple,
         unsigned int h = hash_by_src(tuple);
         struct ip_conntrack *ct;
 
-        READ_LOCK(&ip_nat_lock);
+        read_lock_bh(&ip_nat_lock);
         list_for_each_entry(ct, &bysource[h], nat.info.bysource) {
                 if (same_src(ct, tuple)) {
                         /* Copy source part from reply tuple. */
@@ -151,12 +151,12 @@ find_appropriate_src(const struct ip_conntrack_tuple *tuple,
                         result->dst = tuple->dst;
 
                         if (in_range(result, range)) {
-                                READ_UNLOCK(&ip_nat_lock);
+                                read_unlock_bh(&ip_nat_lock);
                                 return 1;
                         }
                 }
         }
-        READ_UNLOCK(&ip_nat_lock);
+        read_unlock_bh(&ip_nat_lock);
         return 0;
 }
 
@@ -297,9 +297,9 @@ ip_nat_setup_info(struct ip_conntrack *conntrack,
                 unsigned int srchash
                         = hash_by_src(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
                                       .tuple);
-                WRITE_LOCK(&ip_nat_lock);
+                write_lock_bh(&ip_nat_lock);
                 list_add(&info->bysource, &bysource[srchash]);
-                WRITE_UNLOCK(&ip_nat_lock);
+                write_unlock_bh(&ip_nat_lock);
         }
 
         /* It's done. */
@@ -474,23 +474,23 @@ int ip_nat_protocol_register(struct ip_nat_protocol *proto)
 {
         int ret = 0;
 
-        WRITE_LOCK(&ip_nat_lock);
+        write_lock_bh(&ip_nat_lock);
         if (ip_nat_protos[proto->protonum] != &ip_nat_unknown_protocol) {
                 ret = -EBUSY;
                 goto out;
         }
         ip_nat_protos[proto->protonum] = proto;
  out:
-        WRITE_UNLOCK(&ip_nat_lock);
+        write_unlock_bh(&ip_nat_lock);
         return ret;
 }
 
 /* Noone stores the protocol anywhere; simply delete it. */
 void ip_nat_protocol_unregister(struct ip_nat_protocol *proto)
 {
-        WRITE_LOCK(&ip_nat_lock);
+        write_lock_bh(&ip_nat_lock);
         ip_nat_protos[proto->protonum] = &ip_nat_unknown_protocol;
-        WRITE_UNLOCK(&ip_nat_lock);
+        write_unlock_bh(&ip_nat_lock);
 
         /* Someone could be still looking at the proto in a bh. */
         synchronize_net();
@@ -509,13 +509,13 @@ int __init ip_nat_init(void)
                 return -ENOMEM;
 
         /* Sew in builtin protocols. */
-        WRITE_LOCK(&ip_nat_lock);
+        write_lock_bh(&ip_nat_lock);
         for (i = 0; i < MAX_IP_NAT_PROTO; i++)
                 ip_nat_protos[i] = &ip_nat_unknown_protocol;
         ip_nat_protos[IPPROTO_TCP] = &ip_nat_protocol_tcp;
         ip_nat_protos[IPPROTO_UDP] = &ip_nat_protocol_udp;
         ip_nat_protos[IPPROTO_ICMP] = &ip_nat_protocol_icmp;
-        WRITE_UNLOCK(&ip_nat_lock);
+        write_unlock_bh(&ip_nat_lock);
 
         for (i = 0; i < ip_nat_htable_size; i++) {
                 INIT_LIST_HEAD(&bysource[i]);
diff --git a/net/ipv4/netfilter/ip_nat_helper.c b/net/ipv4/netfilter/ip_nat_helper.c
index 1637b96d8c01..158f34f32c04 100644
--- a/net/ipv4/netfilter/ip_nat_helper.c
+++ b/net/ipv4/netfilter/ip_nat_helper.c
@@ -28,8 +28,8 @@
 #include <net/tcp.h>
 #include <net/udp.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
@@ -47,7 +47,7 @@
 #define DUMP_OFFSET(x)
 #endif
 
-static DECLARE_LOCK(ip_nat_seqofs_lock);
+static DEFINE_SPINLOCK(ip_nat_seqofs_lock);
 
 /* Setup TCP sequence correction given this change at this sequence */
 static inline void 
@@ -70,7 +70,7 @@ adjust_tcp_sequence(u32 seq,
         DEBUGP("ip_nat_resize_packet: Seq_offset before: ");
         DUMP_OFFSET(this_way);
 
-        LOCK_BH(&ip_nat_seqofs_lock);
+        spin_lock_bh(&ip_nat_seqofs_lock);
 
         /* SYN adjust. If it's uninitialized, or this is after last
          * correction, record it: we don't handle more than one
@@ -82,7 +82,7 @@ adjust_tcp_sequence(u32 seq,
                     this_way->offset_before = this_way->offset_after;
                     this_way->offset_after += sizediff;
         }
-        UNLOCK_BH(&ip_nat_seqofs_lock);
+        spin_unlock_bh(&ip_nat_seqofs_lock);
 
         DEBUGP("ip_nat_resize_packet: Seq_offset after: ");
         DUMP_OFFSET(this_way);
@@ -142,9 +142,6 @@ static int enlarge_skb(struct sk_buff **pskb, unsigned int extra)
         /* Transfer socket to new skb. */
         if ((*pskb)->sk)
                 skb_set_owner_w(nskb, (*pskb)->sk);
-#ifdef CONFIG_NETFILTER_DEBUG
-        nskb->nf_debug = (*pskb)->nf_debug;
-#endif
         kfree_skb(*pskb);
         *pskb = nskb;
         return 1;
diff --git a/net/ipv4/netfilter/ip_nat_rule.c b/net/ipv4/netfilter/ip_nat_rule.c
index 581f097f5a24..60d70fa41a15 100644
--- a/net/ipv4/netfilter/ip_nat_rule.c
+++ b/net/ipv4/netfilter/ip_nat_rule.c
@@ -19,8 +19,8 @@
 #include <net/route.h>
 #include <linux/bitops.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ip_nat.h>
diff --git a/net/ipv4/netfilter/ip_nat_standalone.c b/net/ipv4/netfilter/ip_nat_standalone.c
index 79f56f662b33..bc59d0d6e89e 100644
--- a/net/ipv4/netfilter/ip_nat_standalone.c
+++ b/net/ipv4/netfilter/ip_nat_standalone.c
@@ -31,8 +31,8 @@
 #include <net/checksum.h>
 #include <linux/spinlock.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_nat.h>
 #include <linux/netfilter_ipv4/ip_nat_rule.h>
@@ -373,7 +373,6 @@ static int init_or_cleanup(int init)
  cleanup_rule_init:
         ip_nat_rule_cleanup();
  cleanup_nothing:
-        MUST_BE_READ_WRITE_UNLOCKED(&ip_nat_lock);
         return ret;
 }
 
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index e5746b674413..eda1fba431a4 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -3,6 +3,7 @@
  * communicating with userspace via netlink.
  *
  * (C) 2000-2002 James Morris <jmorris@intercode.com.au>
+ * (C) 2003-2005 Netfilter Core Team <coreteam@netfilter.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -17,6 +18,7 @@
  * 2005-01-10: Added /proc counter for dropped packets; fixed so
  *             packets aren't delivered to user space if they're going 
  *             to be dropped. 
+ * 2005-05-26: local_bh_{disable,enable} around nf_reinject (Harald Welte)
  *
  */
 #include <linux/module.h>
@@ -71,7 +73,15 @@ static DECLARE_MUTEX(ipqnl_sem);
 static void
 ipq_issue_verdict(struct ipq_queue_entry *entry, int verdict)
 {
+        /* TCP input path (and probably other bits) assume to be called
+         * from softirq context, not from syscall, like ipq_issue_verdict is
+         * called.  TCP input path deadlocks with locks taken from timer
+         * softirq, e.g.  We therefore emulate this by local_bh_disable() */
+
+        local_bh_disable();
         nf_reinject(entry->skb, entry->info, verdict);
+        local_bh_enable();
+
         kfree(entry);
 }
 
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 8a54f92b8496..c88dfcd38c56 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -67,7 +67,6 @@ static DECLARE_MUTEX(ipt_mutex);
 /* Must have mutex */
 #define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
 #define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
 #if 0
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 0f12e3a3dc73..9cde8c61f525 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -29,7 +29,6 @@
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_CLUSTERIP.h>
 #include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 #define CLUSTERIP_VERSION "0.6"
 
@@ -41,6 +40,8 @@
 #define DEBUGP
 #endif
 
+#define ASSERT_READ_LOCK(x)
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
 MODULE_DESCRIPTION("iptables target for CLUSTERIP");
@@ -67,7 +68,7 @@ static LIST_HEAD(clusterip_configs);
 
 /* clusterip_lock protects the clusterip_configs list _AND_ the configurable
  * data within all structurses (num_local_nodes, local_nodes[]) */
-static DECLARE_RWLOCK(clusterip_lock);
+static DEFINE_RWLOCK(clusterip_lock);
 
 #ifdef CONFIG_PROC_FS
 static struct file_operations clusterip_proc_fops;
@@ -82,9 +83,9 @@ clusterip_config_get(struct clusterip_config *c) {
 static inline void
 clusterip_config_put(struct clusterip_config *c) {
         if (atomic_dec_and_test(&c->refcount)) {
-                WRITE_LOCK(&clusterip_lock);
+                write_lock_bh(&clusterip_lock);
                 list_del(&c->list);
-                WRITE_UNLOCK(&clusterip_lock);
+                write_unlock_bh(&clusterip_lock);
                 dev_mc_delete(c->dev, c->clustermac, ETH_ALEN, 0);
                 dev_put(c->dev);
                 kfree(c);
@@ -97,7 +98,7 @@ __clusterip_config_find(u_int32_t clusterip)
 {
         struct list_head *pos;
 
-        MUST_BE_READ_LOCKED(&clusterip_lock);
+        ASSERT_READ_LOCK(&clusterip_lock);
         list_for_each(pos, &clusterip_configs) {
                 struct clusterip_config *c = list_entry(pos, 
                                         struct clusterip_config, list);
@@ -114,14 +115,14 @@ clusterip_config_find_get(u_int32_t clusterip)
 {
         struct clusterip_config *c;
 
-        READ_LOCK(&clusterip_lock);
+        read_lock_bh(&clusterip_lock);
         c = __clusterip_config_find(clusterip);
         if (!c) {
-                READ_UNLOCK(&clusterip_lock);
+                read_unlock_bh(&clusterip_lock);
                 return NULL;
         }
         atomic_inc(&c->refcount);
-        READ_UNLOCK(&clusterip_lock);
+        read_unlock_bh(&clusterip_lock);
 
         return c;
 }
@@ -160,9 +161,9 @@ clusterip_config_init(struct ipt_clusterip_tgt_info *i, u_int32_t ip,
         c->pde->data = c;
 #endif
 
-        WRITE_LOCK(&clusterip_lock);
+        write_lock_bh(&clusterip_lock);
         list_add(&c->list, &clusterip_configs);
-        WRITE_UNLOCK(&clusterip_lock);
+        write_unlock_bh(&clusterip_lock);
 
         return c;
 }
@@ -172,25 +173,25 @@ clusterip_add_node(struct clusterip_config *c, u_int16_t nodenum)
 {
         int i;
 
-        WRITE_LOCK(&clusterip_lock);
+        write_lock_bh(&clusterip_lock);
 
         if (c->num_local_nodes >= CLUSTERIP_MAX_NODES
             || nodenum > CLUSTERIP_MAX_NODES) {
-                WRITE_UNLOCK(&clusterip_lock);
+                write_unlock_bh(&clusterip_lock);
                 return 1;
         }
 
         /* check if we alrady have this number in our array */
         for (i = 0; i < c->num_local_nodes; i++) {
                 if (c->local_nodes[i] == nodenum) {
-                        WRITE_UNLOCK(&clusterip_lock);
+                        write_unlock_bh(&clusterip_lock);
                         return 1;
                 }
         }
 
         c->local_nodes[c->num_local_nodes++] = nodenum;
 
-        WRITE_UNLOCK(&clusterip_lock);
+        write_unlock_bh(&clusterip_lock);
         return 0;
 }
 
@@ -199,10 +200,10 @@ clusterip_del_node(struct clusterip_config *c, u_int16_t nodenum)
 {
         int i;
 
-        WRITE_LOCK(&clusterip_lock);
+        write_lock_bh(&clusterip_lock);
 
         if (c->num_local_nodes <= 1 || nodenum > CLUSTERIP_MAX_NODES) {
-                WRITE_UNLOCK(&clusterip_lock);
+                write_unlock_bh(&clusterip_lock);
                 return 1;
         }
                 
@@ -211,12 +212,12 @@ clusterip_del_node(struct clusterip_config *c, u_int16_t nodenum)
                         int size = sizeof(u_int16_t)*(c->num_local_nodes-(i+1));
                         memmove(&c->local_nodes[i], &c->local_nodes[i+1], size);
                         c->num_local_nodes--;
-                        WRITE_UNLOCK(&clusterip_lock);
+                        write_unlock_bh(&clusterip_lock);
                         return 0;
                 }
         }
 
-        WRITE_UNLOCK(&clusterip_lock);
+        write_unlock_bh(&clusterip_lock);
         return 1;
 }
 
@@ -286,21 +287,21 @@ clusterip_responsible(struct clusterip_config *config, u_int32_t hash)
 {
         int i;
 
-        READ_LOCK(&clusterip_lock);
+        read_lock_bh(&clusterip_lock);
 
         if (config->num_local_nodes == 0) {
-                READ_UNLOCK(&clusterip_lock);
+                read_unlock_bh(&clusterip_lock);
                 return 0;
         }
 
         for (i = 0; i < config->num_local_nodes; i++) {
                 if (config->local_nodes[i] == hash) {
-                        READ_UNLOCK(&clusterip_lock);
+                        read_unlock_bh(&clusterip_lock);
                         return 1;
                 }
         }
 
-        READ_UNLOCK(&clusterip_lock);
+        read_unlock_bh(&clusterip_lock);
 
         return 0;
 }
@@ -338,7 +339,7 @@ target(struct sk_buff **pskb,
          * error messages (RELATED) and information requests (see below) */
         if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP
             && (ctinfo == IP_CT_RELATED 
-                || ctinfo == IP_CT_IS_REPLY+IP_CT_IS_REPLY))
+                || ctinfo == IP_CT_RELATED+IP_CT_IS_REPLY))
                 return IPT_CONTINUE;
 
         /* ip_conntrack_icmp guarantees us that we only have ICMP_ECHO, 
@@ -578,7 +579,7 @@ static void *clusterip_seq_start(struct seq_file *s, loff_t *pos)
         struct clusterip_config *c = pde->data;
         unsigned int *nodeidx;
 
-        READ_LOCK(&clusterip_lock);
+        read_lock_bh(&clusterip_lock);
         if (*pos >= c->num_local_nodes)
                 return NULL;
 
@@ -608,7 +609,7 @@ static void clusterip_seq_stop(struct seq_file *s, void *v)
 {
         kfree(v);
 
-        READ_UNLOCK(&clusterip_lock);
+        read_unlock_bh(&clusterip_lock);
 }
 
 static int clusterip_seq_show(struct seq_file *s, void *v)
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 57e9f6cf1c36..91e74502c3d3 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -33,7 +33,7 @@ MODULE_DESCRIPTION("iptables MASQUERADE target module");
 #endif
 
 /* Lock protects masq region inside conntrack */
-static DECLARE_RWLOCK(masq_lock);
+static DEFINE_RWLOCK(masq_lock);
 
 /* FIXME: Multiple targets. --RR */
 static int
@@ -103,9 +103,9 @@ masquerade_target(struct sk_buff **pskb,
                 return NF_DROP;
         }
 
-        WRITE_LOCK(&masq_lock);
+        write_lock_bh(&masq_lock);
         ct->nat.masq_index = out->ifindex;
-        WRITE_UNLOCK(&masq_lock);
+        write_unlock_bh(&masq_lock);
 
         /* Transfer from original range. */
         newrange = ((struct ip_nat_range)
@@ -122,9 +122,9 @@ device_cmp(struct ip_conntrack *i, void *ifindex)
 {
         int ret;
 
-        READ_LOCK(&masq_lock);
+        read_lock_bh(&masq_lock);
         ret = (i->nat.masq_index == (int)(long)ifindex);
-        READ_UNLOCK(&masq_lock);
+        read_unlock_bh(&masq_lock);
 
         return ret;
 }
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 266d64979286..915696446020 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -104,10 +104,12 @@ static inline struct rtable *route_reverse(struct sk_buff *skb,
 static void send_reset(struct sk_buff *oldskb, int hook)
 {
         struct sk_buff *nskb;
+        struct iphdr *iph = oldskb->nh.iph;
         struct tcphdr _otcph, *oth, *tcph;
         struct rtable *rt;
         u_int16_t tmp_port;
         u_int32_t tmp_addr;
+        unsigned int tcplen;
         int needs_ack;
         int hh_len;
 
@@ -124,7 +126,16 @@ static void send_reset(struct sk_buff *oldskb, int hook)
         if (oth->rst)
                 return;
 
-        /* FIXME: Check checksum --RR */
+        /* Check checksum */
+        tcplen = oldskb->len - iph->ihl * 4;
+        if (((hook != NF_IP_LOCAL_IN && oldskb->ip_summed != CHECKSUM_HW) ||
+             (hook == NF_IP_LOCAL_IN &&
+              oldskb->ip_summed != CHECKSUM_UNNECESSARY)) &&
+            csum_tcpudp_magic(iph->saddr, iph->daddr, tcplen, IPPROTO_TCP,
+                              oldskb->ip_summed == CHECKSUM_HW ? oldskb->csum :
+                              skb_checksum(oldskb, iph->ihl * 4, tcplen, 0)))
+                return;
+
         if ((rt = route_reverse(oldskb, oth, hook)) == NULL)
                 return;
 
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index 6f2cefbe16cd..52a0076302a7 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -56,7 +56,6 @@
 #include <linux/netfilter.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_ULOG.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <net/sock.h>
 #include <linux/bitops.h>
 
@@ -99,8 +98,8 @@ typedef struct {
 
 static ulog_buff_t ulog_buffers[ULOG_MAXNLGROUPS];      /* array of buffers */
 
-static struct sock *nflognl;    /* our socket */
-static DECLARE_LOCK(ulog_lock); /* spinlock */
+static struct sock *nflognl;            /* our socket */
+static DEFINE_SPINLOCK(ulog_lock);      /* spinlock */
 
 /* send one ulog_buff_t to userspace */
 static void ulog_send(unsigned int nlgroupnum)
@@ -135,9 +134,9 @@ static void ulog_timer(unsigned long data)
 
         /* lock to protect against somebody modifying our structure
          * from ipt_ulog_target at the same time */
-        LOCK_BH(&ulog_lock);
+        spin_lock_bh(&ulog_lock);
         ulog_send(data);
-        UNLOCK_BH(&ulog_lock);
+        spin_unlock_bh(&ulog_lock);
 }
 
 static struct sk_buff *ulog_alloc_skb(unsigned int size)
@@ -193,7 +192,7 @@ static void ipt_ulog_packet(unsigned int hooknum,
 
         ub = &ulog_buffers[groupnum];
         
-        LOCK_BH(&ulog_lock);
+        spin_lock_bh(&ulog_lock);
 
         if (!ub->skb) {
                 if (!(ub->skb = ulog_alloc_skb(size)))
@@ -278,7 +277,7 @@ static void ipt_ulog_packet(unsigned int hooknum,
                 ulog_send(groupnum);
         }
 
-        UNLOCK_BH(&ulog_lock);
+        spin_unlock_bh(&ulog_lock);
 
         return;
 
@@ -288,7 +287,7 @@ nlmsg_failure:
 alloc_failure:
         PRINTR("ipt_ULOG: Error building netlink message\n");
 
-        UNLOCK_BH(&ulog_lock);
+        spin_unlock_bh(&ulog_lock);
 }
 
 static unsigned int ipt_ulog_target(struct sk_buff **pskb,
diff --git a/net/ipv4/netfilter/ipt_hashlimit.c b/net/ipv4/netfilter/ipt_hashlimit.c
index f1937190cd77..564b49bfebcf 100644
--- a/net/ipv4/netfilter/ipt_hashlimit.c
+++ b/net/ipv4/netfilter/ipt_hashlimit.c
@@ -37,7 +37,6 @@
 
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_hashlimit.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 /* FIXME: this is just for IP_NF_ASSERRT */
 #include <linux/netfilter_ipv4/ip_conntrack.h>
@@ -92,7 +91,7 @@ struct ipt_hashlimit_htable {
         struct hlist_head hash[0];      /* hashtable itself */
 };
 
-static DECLARE_LOCK(hashlimit_lock);    /* protects htables list */
+static DEFINE_SPINLOCK(hashlimit_lock); /* protects htables list */
 static DECLARE_MUTEX(hlimit_mutex);     /* additional checkentry protection */
 static HLIST_HEAD(hashlimit_htables);
 static kmem_cache_t *hashlimit_cachep;
@@ -233,9 +232,9 @@ static int htable_create(struct ipt_hashlimit_info *minfo)
         hinfo->timer.function = htable_gc;
         add_timer(&hinfo->timer);
 
-        LOCK_BH(&hashlimit_lock);
+        spin_lock_bh(&hashlimit_lock);
         hlist_add_head(&hinfo->node, &hashlimit_htables);
-        UNLOCK_BH(&hashlimit_lock);
+        spin_unlock_bh(&hashlimit_lock);
 
         return 0;
 }
@@ -301,15 +300,15 @@ static struct ipt_hashlimit_htable *htable_find_get(char *name)
         struct ipt_hashlimit_htable *hinfo;
         struct hlist_node *pos;
 
-        LOCK_BH(&hashlimit_lock);
+        spin_lock_bh(&hashlimit_lock);
         hlist_for_each_entry(hinfo, pos, &hashlimit_htables, node) {
                 if (!strcmp(name, hinfo->pde->name)) {
                         atomic_inc(&hinfo->use);
-                        UNLOCK_BH(&hashlimit_lock);
+                        spin_unlock_bh(&hashlimit_lock);
                         return hinfo;
                 }
         }
-        UNLOCK_BH(&hashlimit_lock);
+        spin_unlock_bh(&hashlimit_lock);
 
         return NULL;
 }
@@ -317,9 +316,9 @@ static struct ipt_hashlimit_htable *htable_find_get(char *name)
 static void htable_put(struct ipt_hashlimit_htable *hinfo)
 {
         if (atomic_dec_and_test(&hinfo->use)) {
-                LOCK_BH(&hashlimit_lock);
+                spin_lock_bh(&hashlimit_lock);
                 hlist_del(&hinfo->node);
-                UNLOCK_BH(&hashlimit_lock);
+                spin_unlock_bh(&hashlimit_lock);
                 htable_destroy(hinfo);
         }
 }
diff --git a/net/ipv4/netfilter/ipt_helper.c b/net/ipv4/netfilter/ipt_helper.c
index 33fdf364d3d3..3e7dd014de43 100644
--- a/net/ipv4/netfilter/ipt_helper.c
+++ b/net/ipv4/netfilter/ipt_helper.c
@@ -53,7 +53,7 @@ match(const struct sk_buff *skb,
                 return ret;
         }
 
-        READ_LOCK(&ip_conntrack_lock);
+        read_lock_bh(&ip_conntrack_lock);
         if (!ct->master->helper) {
                 DEBUGP("ipt_helper: master ct %p has no helper\n", 
                         exp->expectant);
@@ -69,7 +69,7 @@ match(const struct sk_buff *skb,
                 ret ^= !strncmp(ct->master->helper->name, info->name, 
                                 strlen(ct->master->helper->name));
 out_unlock:
-        READ_UNLOCK(&ip_conntrack_lock);
+        read_unlock_bh(&ip_conntrack_lock);
         return ret;
 }
 
diff --git a/net/ipv4/netfilter/ipt_recent.c b/net/ipv4/netfilter/ipt_recent.c
index 25ab9fabdcba..2d44b07688af 100644
--- a/net/ipv4/netfilter/ipt_recent.c
+++ b/net/ipv4/netfilter/ipt_recent.c
@@ -223,7 +223,7 @@ static int ip_recent_ctrl(struct file *file, const char __user *input, unsigned
                         curr_table->table[count].last_seen = 0;
                         curr_table->table[count].addr = 0;
                         curr_table->table[count].ttl = 0;
-                        memset(curr_table->table[count].last_pkts,0,ip_pkt_list_tot*sizeof(u_int32_t));
+                        memset(curr_table->table[count].last_pkts,0,ip_pkt_list_tot*sizeof(unsigned long));
                         curr_table->table[count].oldest_pkt = 0;
                         curr_table->table[count].time_pos = 0;
                         curr_table->time_info[count].position = count;
@@ -502,7 +502,7 @@ match(const struct sk_buff *skb,
                 location = time_info[curr_table->time_pos].position;
                 hash_table[r_list[location].hash_entry] = -1;
                 hash_table[hash_result] = location;
-                memset(r_list[location].last_pkts,0,ip_pkt_list_tot*sizeof(u_int32_t));
+                memset(r_list[location].last_pkts,0,ip_pkt_list_tot*sizeof(unsigned long));
                 r_list[location].time_pos = curr_table->time_pos;
                 r_list[location].addr = addr;
                 r_list[location].ttl = ttl;
@@ -631,7 +631,7 @@ match(const struct sk_buff *skb,
                         r_list[location].last_seen = 0;
                         r_list[location].addr = 0;
                         r_list[location].ttl = 0;
-                        memset(r_list[location].last_pkts,0,ip_pkt_list_tot*sizeof(u_int32_t));
+                        memset(r_list[location].last_pkts,0,ip_pkt_list_tot*sizeof(unsigned long));
                         r_list[location].oldest_pkt = 0;
                         ans = !info->invert;
                 }
@@ -734,10 +734,10 @@ checkentry(const char *tablename,
         memset(curr_table->table,0,sizeof(struct recent_ip_list)*ip_list_tot);
 #ifdef DEBUG
         if(debug) printk(KERN_INFO RECENT_NAME ": checkentry: Allocating %d for pkt_list.\n",
-                        sizeof(u_int32_t)*ip_pkt_list_tot*ip_list_tot);
+                        sizeof(unsigned long)*ip_pkt_list_tot*ip_list_tot);
 #endif
 
-        hold = vmalloc(sizeof(u_int32_t)*ip_pkt_list_tot*ip_list_tot);
+        hold = vmalloc(sizeof(unsigned long)*ip_pkt_list_tot*ip_list_tot);
 #ifdef DEBUG
         if(debug) printk(KERN_INFO RECENT_NAME ": checkentry: After pkt_list allocation.\n");
 #endif
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 5b1ec586bae6..d1835b1bc8c4 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -259,7 +259,7 @@ int raw_rcv(struct sock *sk, struct sk_buff *skb)
         return 0;
 }
 
-static int raw_send_hdrinc(struct sock *sk, void *from, int length,
+static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
                         struct rtable *rt, 
                         unsigned int flags)
 {
@@ -298,7 +298,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, int length,
                 goto error_fault;
 
         /* We don't modify invalid header */
-        if (length >= sizeof(*iph) && iph->ihl * 4 <= length) {
+        if (length >= sizeof(*iph) && iph->ihl * 4U <= length) {
                 if (!iph->saddr)
                         iph->saddr = rt->rt_src;
                 iph->check   = 0;
@@ -332,7 +332,7 @@ static void raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
         u8 __user *type = NULL;
         u8 __user *code = NULL;
         int probed = 0;
-        int i;
+        unsigned int i;
 
         if (!msg->msg_iov)
                 return;
@@ -384,7 +384,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
         int err;
 
         err = -EMSGSIZE;
-        if (len < 0 || len > 0xFFFF)
+        if (len > 0xFFFF)
                 goto out;
 
         /*
@@ -514,7 +514,10 @@ done:
                 kfree(ipc.opt);
         ip_rt_put(rt);
 
-out:    return err < 0 ? err : len;
+out:
+        if (err < 0)
+                return err;
+        return len;
 
 do_confirm:
         dst_confirm(&rt->u.dst);
@@ -610,7 +613,10 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
                 copied = skb->len;
 done:
         skb_free_datagram(sk, skb);
-out:    return err ? err : copied;
+out:
+        if (err)
+                return err;
+        return copied;
 }
 
 static int raw_init(struct sock *sk)
@@ -691,11 +697,11 @@ static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
                         struct sk_buff *skb;
                         int amount = 0;
 
-                        spin_lock_irq(&sk->sk_receive_queue.lock);
+                        spin_lock_bh(&sk->sk_receive_queue.lock);
                         skb = skb_peek(&sk->sk_receive_queue);
                         if (skb != NULL)
                                 amount = skb->len;
-                        spin_unlock_irq(&sk->sk_receive_queue.lock);
+                        spin_unlock_bh(&sk->sk_receive_queue.lock);
                         return put_user(amount, (int __user *)arg);
                 }
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index a682d28e247b..80cf633d9f4a 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1767,7 +1767,7 @@ static inline int ip_mkroute_input_def(struct sk_buff *skb,
                                        struct in_device *in_dev,
                                        u32 daddr, u32 saddr, u32 tos)
 {
-        struct rtable* rth;
+        struct rtable* rth = NULL;
         int err;
         unsigned hash;
 
@@ -1794,7 +1794,7 @@ static inline int ip_mkroute_input(struct sk_buff *skb,
                                    u32 daddr, u32 saddr, u32 tos)
 {
 #ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
-        struct rtable* rth;
+        struct rtable* rth = NULL;
         unsigned char hop, hopcount, lasthop;
         int err = -EINVAL;
         unsigned int hash;
@@ -2239,7 +2239,7 @@ static inline int ip_mkroute_output_def(struct rtable **rp,
                                         struct net_device *dev_out,
                                         unsigned flags)
 {
-        struct rtable *rth;
+        struct rtable *rth = NULL;
         int err = __mkroute_output(&rth, res, fl, oldflp, dev_out, flags);
         unsigned hash;
         if (err == 0) {
@@ -2267,7 +2267,7 @@ static inline int ip_mkroute_output(struct rtable** rp,
         unsigned char hop;
         unsigned hash;
         int err = -EINVAL;
-        struct rtable *rth;
+        struct rtable *rth = NULL;
 
         if (res->fi && res->fi->fib_nhs > 1) {
                 unsigned char hopcount = res->fi->fib_nhs;
@@ -2581,7 +2581,7 @@ int ip_route_output_key(struct rtable **rp, struct flowi *flp)
 }
 
 static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
-                        int nowait)
+                        int nowait, unsigned int flags)
 {
         struct rtable *rt = (struct rtable*)skb->dst;
         struct rtmsg *r;
@@ -2591,9 +2591,8 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 #ifdef CONFIG_IP_MROUTE
         struct rtattr *eptr;
 #endif
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*r));
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*r), flags);
         r = NLMSG_DATA(nlh);
-        nlh->nlmsg_flags = (nowait && pid) ? NLM_F_MULTI : 0;
         r->rtm_family    = AF_INET;
         r->rtm_dst_len  = 32;
         r->rtm_src_len  = 0;
@@ -2744,7 +2743,7 @@ int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
         NETLINK_CB(skb).dst_pid = NETLINK_CB(in_skb).pid;
 
         err = rt_fill_info(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq,
-                                RTM_NEWROUTE, 0);
+                                RTM_NEWROUTE, 0, 0);
         if (!err)
                 goto out_free;
         if (err < 0) {
@@ -2781,8 +2780,8 @@ int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb)
                                 continue;
                         skb->dst = dst_clone(&rt->u.dst);
                         if (rt_fill_info(skb, NETLINK_CB(cb->skb).pid,
-                                         cb->nlh->nlmsg_seq,
-                                         RTM_NEWROUTE, 1) <= 0) {
+                                         cb->nlh->nlmsg_seq, RTM_NEWROUTE, 
+                                         1, NLM_F_MULTI) <= 0) {
                                 dst_release(xchg(&skb->dst, NULL));
                                 rcu_read_unlock_bh();
                                 goto done;
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index e923d2f021aa..72d014442185 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -169,10 +169,10 @@ static inline int cookie_check(struct sk_buff *skb, __u32 cookie)
         return mssind < NUM_MSS ? msstab[mssind] + 1 : 0;
 }
 
-extern struct or_calltable or_ipv4;
+extern struct request_sock_ops tcp_request_sock_ops;
 
 static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
-                                           struct open_request *req,
+                                           struct request_sock *req,
                                            struct dst_entry *dst)
 {
         struct tcp_sock *tp = tcp_sk(sk);
@@ -182,7 +182,7 @@ static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
         if (child)
                 tcp_acceptq_queue(sk, req, child);
         else
-                tcp_openreq_free(req);
+                reqsk_free(req);
 
         return child;
 }
@@ -190,10 +190,12 @@ static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
 struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
                              struct ip_options *opt)
 {
+        struct inet_request_sock *ireq;
+        struct tcp_request_sock *treq;
         struct tcp_sock *tp = tcp_sk(sk);
         __u32 cookie = ntohl(skb->h.th->ack_seq) - 1; 
         struct sock *ret = sk;
-        struct open_request *req; 
+        struct request_sock *req; 
         int mss; 
         struct rtable *rt; 
         __u8 rcv_wscale;
@@ -209,19 +211,20 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 
         NET_INC_STATS_BH(LINUX_MIB_SYNCOOKIESRECV);
 
-        req = tcp_openreq_alloc();
         ret = NULL;
+        req = reqsk_alloc(&tcp_request_sock_ops); /* for safety */
         if (!req)
                 goto out;
 
-        req->rcv_isn            = htonl(skb->h.th->seq) - 1;
-        req->snt_isn            = cookie; 
+        ireq = inet_rsk(req);
+        treq = tcp_rsk(req);
+        treq->rcv_isn           = htonl(skb->h.th->seq) - 1;
+        treq->snt_isn           = cookie; 
         req->mss                = mss;
-        req->rmt_port           = skb->h.th->source;
-        req->af.v4_req.loc_addr = skb->nh.iph->daddr;
-        req->af.v4_req.rmt_addr = skb->nh.iph->saddr;
-        req->class              = &or_ipv4; /* for savety */
-        req->af.v4_req.opt      = NULL;
+        ireq->rmt_port          = skb->h.th->source;
+        ireq->loc_addr          = skb->nh.iph->daddr;
+        ireq->rmt_addr          = skb->nh.iph->saddr;
+        ireq->opt               = NULL;
 
         /* We throwed the options of the initial SYN away, so we hope
          * the ACK carries the same options again (see RFC1122 4.2.3.8)
@@ -229,17 +232,15 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
         if (opt && opt->optlen) {
                 int opt_size = sizeof(struct ip_options) + opt->optlen;
 
-                req->af.v4_req.opt = kmalloc(opt_size, GFP_ATOMIC);
-                if (req->af.v4_req.opt) {
-                        if (ip_options_echo(req->af.v4_req.opt, skb)) {
-                                kfree(req->af.v4_req.opt);
-                                req->af.v4_req.opt = NULL;
-                        }
+                ireq->opt = kmalloc(opt_size, GFP_ATOMIC);
+                if (ireq->opt != NULL && ip_options_echo(ireq->opt, skb)) {
+                        kfree(ireq->opt);
+                        ireq->opt = NULL;
                 }
         }
 
-        req->snd_wscale = req->rcv_wscale = req->tstamp_ok = 0;
-        req->wscale_ok  = req->sack_ok = 0; 
+        ireq->snd_wscale = ireq->rcv_wscale = ireq->tstamp_ok = 0;
+        ireq->wscale_ok  = ireq->sack_ok = 0; 
         req->expires    = 0UL; 
         req->retrans    = 0; 
         
@@ -253,15 +254,15 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
                 struct flowi fl = { .nl_u = { .ip4_u =
                                               { .daddr = ((opt && opt->srr) ?
                                                           opt->faddr :
-                                                          req->af.v4_req.rmt_addr),
-                                                .saddr = req->af.v4_req.loc_addr,
+                                                          ireq->rmt_addr),
+                                                .saddr = ireq->loc_addr,
                                                 .tos = RT_CONN_FLAGS(sk) } },
                                     .proto = IPPROTO_TCP,
                                     .uli_u = { .ports =
                                                { .sport = skb->h.th->dest,
                                                  .dport = skb->h.th->source } } };
                 if (ip_route_output_key(&rt, &fl)) {
-                        tcp_openreq_free(req);
+                        reqsk_free(req);
                         goto out; 
                 }
         }
@@ -272,7 +273,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
                                   &req->rcv_wnd, &req->window_clamp, 
                                   0, &rcv_wscale);
         /* BTW win scale with syncookies is 0 by definition */
-        req->rcv_wscale   = rcv_wscale; 
+        ireq->rcv_wscale  = rcv_wscale; 
 
         ret = get_cookie_sock(sk, skb, req, &rt->u.dst);
 out:    return ret;
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 3aafb298c1c1..e32894532416 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -23,6 +23,7 @@ extern int sysctl_ip_nonlocal_bind;
 extern int sysctl_icmp_echo_ignore_all;
 extern int sysctl_icmp_echo_ignore_broadcasts;
 extern int sysctl_icmp_ignore_bogus_error_responses;
+extern int sysctl_icmp_errors_use_inbound_ifaddr;
 
 /* From ip_fragment.c */
 extern int sysctl_ipfrag_low_thresh;
@@ -117,6 +118,45 @@ static int ipv4_sysctl_forward_strategy(ctl_table *table,
         return 1;
 }
 
+static int proc_tcp_congestion_control(ctl_table *ctl, int write, struct file * filp,
+                                       void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+        char val[TCP_CA_NAME_MAX];
+        ctl_table tbl = {
+                .data = val,
+                .maxlen = TCP_CA_NAME_MAX,
+        };
+        int ret;
+
+        tcp_get_default_congestion_control(val);
+
+        ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos);
+        if (write && ret == 0)
+                ret = tcp_set_default_congestion_control(val);
+        return ret;
+}
+
+int sysctl_tcp_congestion_control(ctl_table *table, int __user *name, int nlen,
+                                  void __user *oldval, size_t __user *oldlenp,
+                                  void __user *newval, size_t newlen,
+                                  void **context)
+{
+        char val[TCP_CA_NAME_MAX];
+        ctl_table tbl = {
+                .data = val,
+                .maxlen = TCP_CA_NAME_MAX,
+        };
+        int ret;
+
+        tcp_get_default_congestion_control(val);
+        ret = sysctl_string(&tbl, name, nlen, oldval, oldlenp, newval, newlen,
+                            context);
+        if (ret == 0 && newval && newlen)
+                ret = tcp_set_default_congestion_control(val);
+        return ret;
+}
+
+
 ctl_table ipv4_table[] = {
         {
                 .ctl_name       = NET_IPV4_TCP_TIMESTAMPS,
@@ -396,6 +436,14 @@ ctl_table ipv4_table[] = {
                 .proc_handler   = &proc_dointvec
         },
         {
+                .ctl_name       = NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR,
+                .procname       = "icmp_errors_use_inbound_ifaddr",
+                .data           = &sysctl_icmp_errors_use_inbound_ifaddr,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = &proc_dointvec
+        },
+        {
                 .ctl_name       = NET_IPV4_ROUTE,
                 .procname       = "route",
                 .maxlen         = 0,
@@ -603,70 +651,6 @@ ctl_table ipv4_table[] = {
                 .proc_handler   = &proc_dointvec,
         },
         {
-                .ctl_name       = NET_TCP_WESTWOOD, 
-                .procname       = "tcp_westwood",
-                .data           = &sysctl_tcp_westwood,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .ctl_name       = NET_TCP_VEGAS,
-                .procname       = "tcp_vegas_cong_avoid",
-                .data           = &sysctl_tcp_vegas_cong_avoid,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .ctl_name       = NET_TCP_VEGAS_ALPHA,
-                .procname       = "tcp_vegas_alpha",
-                .data           = &sysctl_tcp_vegas_alpha,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .ctl_name       = NET_TCP_VEGAS_BETA,
-                .procname       = "tcp_vegas_beta",
-                .data           = &sysctl_tcp_vegas_beta,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .ctl_name       = NET_TCP_VEGAS_GAMMA,
-                .procname       = "tcp_vegas_gamma",
-                .data           = &sysctl_tcp_vegas_gamma,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .ctl_name       = NET_TCP_BIC,
-                .procname       = "tcp_bic",
-                .data           = &sysctl_tcp_bic,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .ctl_name       = NET_TCP_BIC_FAST_CONVERGENCE,
-                .procname       = "tcp_bic_fast_convergence",
-                .data           = &sysctl_tcp_bic_fast_convergence,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .ctl_name       = NET_TCP_BIC_LOW_WINDOW,
-                .procname       = "tcp_bic_low_window",
-                .data           = &sysctl_tcp_bic_low_window,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
                 .ctl_name       = NET_TCP_MODERATE_RCVBUF,
                 .procname       = "tcp_moderate_rcvbuf",
                 .data           = &sysctl_tcp_moderate_rcvbuf,
@@ -683,13 +667,14 @@ ctl_table ipv4_table[] = {
                 .proc_handler   = &proc_dointvec,
         },
         {
-                .ctl_name       = NET_TCP_BIC_BETA,
-                .procname       = "tcp_bic_beta",
-                .data           = &sysctl_tcp_bic_beta,
-                .maxlen         = sizeof(int),
+                .ctl_name       = NET_TCP_CONG_CONTROL,
+                .procname       = "tcp_congestion_control",
                 .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
+                .maxlen         = TCP_CA_NAME_MAX,
+                .proc_handler   = &proc_tcp_congestion_control,
+                .strategy       = &sysctl_tcp_congestion_control,
         },
+
         { .ctl_name = 0 }
 };
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index a037bafcba3c..882436da9a3a 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -271,7 +271,6 @@ int sysctl_tcp_fin_timeout = TCP_FIN_TIMEOUT;
 
 DEFINE_SNMP_STAT(struct tcp_mib, tcp_statistics);
 
-kmem_cache_t *tcp_openreq_cachep;
 kmem_cache_t *tcp_bucket_cachep;
 kmem_cache_t *tcp_timewait_cachep;
 
@@ -317,7 +316,7 @@ EXPORT_SYMBOL(tcp_enter_memory_pressure);
 static __inline__ unsigned int tcp_listen_poll(struct sock *sk,
                                                poll_table *wait)
 {
-        return tcp_sk(sk)->accept_queue ? (POLLIN | POLLRDNORM) : 0;
+        return !reqsk_queue_empty(&tcp_sk(sk)->accept_queue) ? (POLLIN | POLLRDNORM) : 0;
 }
 
 /*
@@ -463,28 +462,15 @@ int tcp_listen_start(struct sock *sk)
 {
         struct inet_sock *inet = inet_sk(sk);
         struct tcp_sock *tp = tcp_sk(sk);
-        struct tcp_listen_opt *lopt;
+        int rc = reqsk_queue_alloc(&tp->accept_queue, TCP_SYNQ_HSIZE);
+
+        if (rc != 0)
+                return rc;
 
         sk->sk_max_ack_backlog = 0;
         sk->sk_ack_backlog = 0;
-        tp->accept_queue = tp->accept_queue_tail = NULL;
-        rwlock_init(&tp->syn_wait_lock);
         tcp_delack_init(tp);
 
-        lopt = kmalloc(sizeof(struct tcp_listen_opt), GFP_KERNEL);
-        if (!lopt)
-                return -ENOMEM;
-
-        memset(lopt, 0, sizeof(struct tcp_listen_opt));
-        for (lopt->max_qlen_log = 6; ; lopt->max_qlen_log++)
-                if ((1 << lopt->max_qlen_log) >= sysctl_max_syn_backlog)
-                        break;
-        get_random_bytes(&lopt->hash_rnd, 4);
-
-        write_lock_bh(&tp->syn_wait_lock);
-        tp->listen_opt = lopt;
-        write_unlock_bh(&tp->syn_wait_lock);
-
         /* There is race window here: we announce ourselves listening,
          * but this transition is still not validated by get_port().
          * It is OK, because this socket enters to hash table only
@@ -501,10 +487,7 @@ int tcp_listen_start(struct sock *sk)
         }
 
         sk->sk_state = TCP_CLOSE;
-        write_lock_bh(&tp->syn_wait_lock);
-        tp->listen_opt = NULL;
-        write_unlock_bh(&tp->syn_wait_lock);
-        kfree(lopt);
+        reqsk_queue_destroy(&tp->accept_queue);
         return -EADDRINUSE;
 }
 
@@ -516,25 +499,23 @@ int tcp_listen_start(struct sock *sk)
 static void tcp_listen_stop (struct sock *sk)
 {
         struct tcp_sock *tp = tcp_sk(sk);
-        struct tcp_listen_opt *lopt = tp->listen_opt;
-        struct open_request *acc_req = tp->accept_queue;
-        struct open_request *req;
+        struct listen_sock *lopt;
+        struct request_sock *acc_req;
+        struct request_sock *req;
         int i;
 
         tcp_delete_keepalive_timer(sk);
 
         /* make all the listen_opt local to us */
-        write_lock_bh(&tp->syn_wait_lock);
-        tp->listen_opt = NULL;
-        write_unlock_bh(&tp->syn_wait_lock);
-        tp->accept_queue = tp->accept_queue_tail = NULL;
+        lopt = reqsk_queue_yank_listen_sk(&tp->accept_queue);
+        acc_req = reqsk_queue_yank_acceptq(&tp->accept_queue);
 
         if (lopt->qlen) {
                 for (i = 0; i < TCP_SYNQ_HSIZE; i++) {
                         while ((req = lopt->syn_table[i]) != NULL) {
                                 lopt->syn_table[i] = req->dl_next;
                                 lopt->qlen--;
-                                tcp_openreq_free(req);
+                                reqsk_free(req);
 
                 /* Following specs, it would be better either to send FIN
                  * (and enter FIN-WAIT-1, it is normal close)
@@ -574,7 +555,7 @@ static void tcp_listen_stop (struct sock *sk)
                 sock_put(child);
 
                 sk_acceptq_removed(sk);
-                tcp_openreq_fastfree(req);
+                __reqsk_free(req);
         }
         BUG_TRAP(!sk->sk_ack_backlog);
 }
@@ -1345,7 +1326,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
                 cleanup_rbuf(sk, copied);
 
-                if (tp->ucopy.task == user_recv) {
+                if (!sysctl_tcp_low_latency && tp->ucopy.task == user_recv) {
                         /* Install new reader */
                         if (!user_recv && !(flags & (MSG_TRUNC | MSG_PEEK))) {
                                 user_recv = current;
@@ -1868,11 +1849,11 @@ static int wait_for_connect(struct sock *sk, long timeo)
                 prepare_to_wait_exclusive(sk->sk_sleep, &wait,
                                           TASK_INTERRUPTIBLE);
                 release_sock(sk);
-                if (!tp->accept_queue)
+                if (reqsk_queue_empty(&tp->accept_queue))
                         timeo = schedule_timeout(timeo);
                 lock_sock(sk);
                 err = 0;
-                if (tp->accept_queue)
+                if (!reqsk_queue_empty(&tp->accept_queue))
                         break;
                 err = -EINVAL;
                 if (sk->sk_state != TCP_LISTEN)
@@ -1895,7 +1876,6 @@ static int wait_for_connect(struct sock *sk, long timeo)
 struct sock *tcp_accept(struct sock *sk, int flags, int *err)
 {
         struct tcp_sock *tp = tcp_sk(sk);
-        struct open_request *req;
         struct sock *newsk;
         int error;
 
@@ -1906,37 +1886,31 @@ struct sock *tcp_accept(struct sock *sk, int flags, int *err)
          */
         error = -EINVAL;
         if (sk->sk_state != TCP_LISTEN)
-                goto out;
+                goto out_err;
 
         /* Find already established connection */
-        if (!tp->accept_queue) {
+        if (reqsk_queue_empty(&tp->accept_queue)) {
                 long timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
 
                 /* If this is a non blocking socket don't sleep */
                 error = -EAGAIN;
                 if (!timeo)
-                        goto out;
+                        goto out_err;
 
                 error = wait_for_connect(sk, timeo);
                 if (error)
-                        goto out;
+                        goto out_err;
         }
 
-        req = tp->accept_queue;
-        if ((tp->accept_queue = req->dl_next) == NULL)
-                tp->accept_queue_tail = NULL;
-
-        newsk = req->sk;
-        sk_acceptq_removed(sk);
-        tcp_openreq_fastfree(req);
+        newsk = reqsk_queue_get_child(&tp->accept_queue, sk);
         BUG_TRAP(newsk->sk_state != TCP_SYN_RECV);
-        release_sock(sk);
-        return newsk;
-
 out:
         release_sock(sk);
+        return newsk;
+out_err:
+        newsk = NULL;
         *err = error;
-        return NULL;
+        goto out;
 }
 
 /*
@@ -1953,6 +1927,25 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
                 return tp->af_specific->setsockopt(sk, level, optname,
                                                    optval, optlen);
 
+        /* This is a string value all the others are int's */
+        if (optname == TCP_CONGESTION) {
+                char name[TCP_CA_NAME_MAX];
+
+                if (optlen < 1)
+                        return -EINVAL;
+
+                val = strncpy_from_user(name, optval,
+                                        min(TCP_CA_NAME_MAX-1, optlen));
+                if (val < 0)
+                        return -EFAULT;
+                name[val] = 0;
+
+                lock_sock(sk);
+                err = tcp_set_congestion_control(tp, name);
+                release_sock(sk);
+                return err;
+        }
+
         if (optlen < sizeof(int))
                 return -EINVAL;
 
@@ -2237,6 +2230,16 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
         case TCP_QUICKACK:
                 val = !tp->ack.pingpong;
                 break;
+
+        case TCP_CONGESTION:
+                if (get_user(len, optlen))
+                        return -EFAULT;
+                len = min_t(unsigned int, len, TCP_CA_NAME_MAX);
+                if (put_user(len, optlen))
+                        return -EFAULT;
+                if (copy_to_user(optval, tp->ca_ops->name, len))
+                        return -EFAULT;
+                return 0;
         default:
                 return -ENOPROTOOPT;
         };
@@ -2250,7 +2253,7 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
 
 
 extern void __skb_cb_too_small_for_tcp(int, int);
-extern void tcpdiag_init(void);
+extern struct tcp_congestion_ops tcp_reno;
 
 static __initdata unsigned long thash_entries;
 static int __init set_thash_entries(char *str)
@@ -2271,13 +2274,6 @@ void __init tcp_init(void)
                 __skb_cb_too_small_for_tcp(sizeof(struct tcp_skb_cb),
                                            sizeof(skb->cb));
 
-        tcp_openreq_cachep = kmem_cache_create("tcp_open_request",
-                                                   sizeof(struct open_request),
-                                               0, SLAB_HWCACHE_ALIGN,
-                                               NULL, NULL);
-        if (!tcp_openreq_cachep)
-                panic("tcp_init: Cannot alloc open_request cache.");
-
         tcp_bucket_cachep = kmem_cache_create("tcp_bind_bucket",
                                               sizeof(struct tcp_bind_bucket),
                                               0, SLAB_HWCACHE_ALIGN,
@@ -2338,7 +2334,7 @@ void __init tcp_init(void)
                         (tcp_bhash_size * sizeof(struct tcp_bind_hashbucket));
                         order++)
                 ;
-        if (order > 4) {
+        if (order >= 4) {
                 sysctl_local_port_range[0] = 32768;
                 sysctl_local_port_range[1] = 61000;
                 sysctl_tcp_max_tw_buckets = 180000;
@@ -2366,6 +2362,8 @@ void __init tcp_init(void)
         printk(KERN_INFO "TCP: Hash tables configured "
                "(established %d bind %d)\n",
                tcp_ehash_size << 1, tcp_bhash_size);
+
+        tcp_register_congestion_control(&tcp_reno);
 }
 
 EXPORT_SYMBOL(tcp_accept);
@@ -2374,7 +2372,6 @@ EXPORT_SYMBOL(tcp_destroy_sock);
 EXPORT_SYMBOL(tcp_disconnect);
 EXPORT_SYMBOL(tcp_getsockopt);
 EXPORT_SYMBOL(tcp_ioctl);
-EXPORT_SYMBOL(tcp_openreq_cachep);
 EXPORT_SYMBOL(tcp_poll);
 EXPORT_SYMBOL(tcp_read_sock);
 EXPORT_SYMBOL(tcp_recvmsg);
diff --git a/net/ipv4/tcp_bic.c b/net/ipv4/tcp_bic.c
new file mode 100644
index 000000000000..ec38d45d6649
--- /dev/null
+++ b/net/ipv4/tcp_bic.c
@@ -0,0 +1,331 @@
+/*
+ * Binary Increase Congestion control for TCP
+ *
+ * This is from the implementation of BICTCP in
+ * Lison-Xu, Kahaled Harfoush, and Injong Rhee.
+ *  "Binary Increase Congestion Control for Fast, Long Distance
+ *  Networks" in InfoComm 2004
+ * Available from:
+ *  http://www.csc.ncsu.edu/faculty/rhee/export/bitcp.pdf
+ *
+ * Unless BIC is enabled and congestion window is large
+ * this behaves the same as the original Reno.
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <net/tcp.h>
+
+
+#define BICTCP_BETA_SCALE    1024       /* Scale factor beta calculation
+                                         * max_cwnd = snd_cwnd * beta
+                                         */
+#define BICTCP_B                4        /*
+                                          * In binary search,
+                                          * go to point (max+min)/N
+                                          */
+
+static int fast_convergence = 1;
+static int max_increment = 32;
+static int low_window = 14;
+static int beta = 819;          /* = 819/1024 (BICTCP_BETA_SCALE) */
+static int low_utilization_threshold = 153;
+static int low_utilization_period = 2;
+static int initial_ssthresh = 100;
+static int smooth_part = 20;
+
+module_param(fast_convergence, int, 0644);
+MODULE_PARM_DESC(fast_convergence, "turn on/off fast convergence");
+module_param(max_increment, int, 0644);
+MODULE_PARM_DESC(max_increment, "Limit on increment allowed during binary search");
+module_param(low_window, int, 0644);
+MODULE_PARM_DESC(low_window, "lower bound on congestion window (for TCP friendliness)");
+module_param(beta, int, 0644);
+MODULE_PARM_DESC(beta, "beta for multiplicative increase");
+module_param(low_utilization_threshold, int, 0644);
+MODULE_PARM_DESC(low_utilization_threshold, "percent (scaled by 1024) for low utilization mode");
+module_param(low_utilization_period, int, 0644);
+MODULE_PARM_DESC(low_utilization_period, "if average delay exceeds then goto to low utilization mode (seconds)");
+module_param(initial_ssthresh, int, 0644);
+MODULE_PARM_DESC(initial_ssthresh, "initial value of slow start threshold");
+module_param(smooth_part, int, 0644);
+MODULE_PARM_DESC(smooth_part, "log(B/(B*Smin))/log(B/(B-1))+B, # of RTT from Wmax-B to Wmax");
+
+
+/* BIC TCP Parameters */
+struct bictcp {
+        u32     cnt;            /* increase cwnd by 1 after ACKs */
+        u32     last_max_cwnd;  /* last maximum snd_cwnd */
+        u32     loss_cwnd;      /* congestion window at last loss */
+        u32     last_cwnd;      /* the last snd_cwnd */
+        u32     last_time;      /* time when updated last_cwnd */
+        u32     delay_min;      /* min delay */
+        u32     delay_max;      /* max delay */
+        u32     last_delay;
+        u8      low_utilization;/* 0: high; 1: low */
+        u32     low_utilization_start;  /* starting time of low utilization detection*/
+        u32     epoch_start;    /* beginning of an epoch */
+#define ACK_RATIO_SHIFT 4
+        u32     delayed_ack;    /* estimate the ratio of Packets/ACKs << 4 */
+};
+
+static inline void bictcp_reset(struct bictcp *ca)
+{
+        ca->cnt = 0;
+        ca->last_max_cwnd = 0;
+        ca->loss_cwnd = 0;
+        ca->last_cwnd = 0;
+        ca->last_time = 0;
+        ca->delay_min = 0;
+        ca->delay_max = 0;
+        ca->last_delay = 0;
+        ca->low_utilization = 0;
+        ca->low_utilization_start = 0;
+        ca->epoch_start = 0;
+        ca->delayed_ack = 2 << ACK_RATIO_SHIFT;
+}
+
+static void bictcp_init(struct tcp_sock *tp)
+{
+        bictcp_reset(tcp_ca(tp));
+        if (initial_ssthresh)
+                tp->snd_ssthresh = initial_ssthresh;
+}
+
+/*
+ * Compute congestion window to use.
+ */
+static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
+{
+        if (ca->last_cwnd == cwnd &&
+            (s32)(tcp_time_stamp - ca->last_time) <= HZ / 32)
+                return;
+
+        ca->last_cwnd = cwnd;
+        ca->last_time = tcp_time_stamp;
+
+        if (ca->epoch_start == 0) /* record the beginning of an epoch */
+                ca->epoch_start = tcp_time_stamp;
+
+        /* start off normal */
+        if (cwnd <= low_window) {
+                ca->cnt = cwnd;
+                return;
+        }
+
+        /* binary increase */
+        if (cwnd < ca->last_max_cwnd) {
+                __u32   dist = (ca->last_max_cwnd - cwnd)
+                        / BICTCP_B;
+
+                if (dist > max_increment)
+                        /* linear increase */
+                        ca->cnt = cwnd / max_increment;
+                else if (dist <= 1U)
+                        /* binary search increase */
+                        ca->cnt = (cwnd * smooth_part) / BICTCP_B;
+                else
+                        /* binary search increase */
+                        ca->cnt = cwnd / dist;
+        } else {
+                /* slow start AMD linear increase */
+                if (cwnd < ca->last_max_cwnd + BICTCP_B)
+                        /* slow start */
+                        ca->cnt = (cwnd * smooth_part) / BICTCP_B;
+                else if (cwnd < ca->last_max_cwnd + max_increment*(BICTCP_B-1))
+                        /* slow start */
+                        ca->cnt = (cwnd * (BICTCP_B-1))
+                                / cwnd-ca->last_max_cwnd;
+                else
+                        /* linear increase */
+                        ca->cnt = cwnd / max_increment;
+        }
+
+        /* if in slow start or link utilization is very low */
+        if ( ca->loss_cwnd == 0 ||
+             (cwnd > ca->loss_cwnd && ca->low_utilization)) {
+                if (ca->cnt > 20) /* increase cwnd 5% per RTT */
+                        ca->cnt = 20;
+        }
+
+        ca->cnt = (ca->cnt << ACK_RATIO_SHIFT) / ca->delayed_ack;
+        if (ca->cnt == 0)                       /* cannot be zero */
+                ca->cnt = 1;
+}
+
+
+/* Detect low utilization in congestion avoidance */
+static inline void bictcp_low_utilization(struct tcp_sock *tp, int flag)
+{
+        struct bictcp *ca = tcp_ca(tp);
+        u32 dist, delay;
+
+        /* No time stamp */
+        if (!(tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr) ||
+             /* Discard delay samples right after fast recovery */
+             tcp_time_stamp < ca->epoch_start + HZ ||
+             /* this delay samples may not be accurate */
+             flag == 0) {
+                ca->last_delay = 0;
+                goto notlow;
+        }
+
+        delay = ca->last_delay<<3;      /* use the same scale as tp->srtt*/
+        ca->last_delay = tcp_time_stamp - tp->rx_opt.rcv_tsecr;
+        if (delay == 0)                 /* no previous delay sample */
+                goto notlow;
+
+        /* first time call or link delay decreases */
+        if (ca->delay_min == 0 || ca->delay_min > delay) {
+                ca->delay_min = ca->delay_max = delay;
+                goto notlow;
+        }
+
+        if (ca->delay_max < delay)
+                ca->delay_max = delay;
+
+        /* utilization is low, if avg delay < dist*threshold
+           for checking_period time */
+        dist = ca->delay_max - ca->delay_min;
+        if (dist <= ca->delay_min>>6 ||
+            tp->srtt - ca->delay_min >=  (dist*low_utilization_threshold)>>10)
+                goto notlow;
+
+        if (ca->low_utilization_start == 0) {
+                ca->low_utilization = 0;
+                ca->low_utilization_start = tcp_time_stamp;
+        } else if ((s32)(tcp_time_stamp - ca->low_utilization_start)
+                        > low_utilization_period*HZ) {
+                ca->low_utilization = 1;
+        }
+
+        return;
+
+ notlow:
+        ca->low_utilization = 0;
+        ca->low_utilization_start = 0;
+
+}
+
+static void bictcp_cong_avoid(struct tcp_sock *tp, u32 ack,
+                              u32 seq_rtt, u32 in_flight, int data_acked)
+{
+        struct bictcp *ca = tcp_ca(tp);
+
+        bictcp_low_utilization(tp, data_acked);
+
+        if (in_flight < tp->snd_cwnd)
+                return;
+
+        if (tp->snd_cwnd <= tp->snd_ssthresh) {
+                /* In "safe" area, increase. */
+                if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+                        tp->snd_cwnd++;
+        } else {
+                bictcp_update(ca, tp->snd_cwnd);
+
+                /* In dangerous area, increase slowly.
+                 * In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd
+                 */
+                if (tp->snd_cwnd_cnt >= ca->cnt) {
+                        if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+                                tp->snd_cwnd++;
+                        tp->snd_cwnd_cnt = 0;
+                } else
+                        tp->snd_cwnd_cnt++;
+        }
+
+}
+
+/*
+ *      behave like Reno until low_window is reached,
+ *      then increase congestion window slowly
+ */
+static u32 bictcp_recalc_ssthresh(struct tcp_sock *tp)
+{
+        struct bictcp *ca = tcp_ca(tp);
+
+        ca->epoch_start = 0;    /* end of epoch */
+
+        /* in case of wrong delay_max*/
+        if (ca->delay_min > 0 && ca->delay_max > ca->delay_min)
+                ca->delay_max = ca->delay_min
+                        + ((ca->delay_max - ca->delay_min)* 90) / 100;
+
+        /* Wmax and fast convergence */
+        if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence)
+                ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta))
+                        / (2 * BICTCP_BETA_SCALE);
+        else
+                ca->last_max_cwnd = tp->snd_cwnd;
+
+        ca->loss_cwnd = tp->snd_cwnd;
+
+
+        if (tp->snd_cwnd <= low_window)
+                return max(tp->snd_cwnd >> 1U, 2U);
+        else
+                return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U);
+}
+
+static u32 bictcp_undo_cwnd(struct tcp_sock *tp)
+{
+        struct bictcp *ca = tcp_ca(tp);
+
+        return max(tp->snd_cwnd, ca->last_max_cwnd);
+}
+
+static u32 bictcp_min_cwnd(struct tcp_sock *tp)
+{
+        return tp->snd_ssthresh;
+}
+
+static void bictcp_state(struct tcp_sock *tp, u8 new_state)
+{
+        if (new_state == TCP_CA_Loss)
+                bictcp_reset(tcp_ca(tp));
+}
+
+/* Track delayed acknowledgement ratio using sliding window
+ * ratio = (15*ratio + sample) / 16
+ */
+static void bictcp_acked(struct tcp_sock *tp, u32 cnt)
+{
+        if (cnt > 0 &&  tp->ca_state == TCP_CA_Open) {
+                struct bictcp *ca = tcp_ca(tp);
+                cnt -= ca->delayed_ack >> ACK_RATIO_SHIFT;
+                ca->delayed_ack += cnt;
+        }
+}
+
+
+static struct tcp_congestion_ops bictcp = {
+        .init           = bictcp_init,
+        .ssthresh       = bictcp_recalc_ssthresh,
+        .cong_avoid     = bictcp_cong_avoid,
+        .set_state      = bictcp_state,
+        .undo_cwnd      = bictcp_undo_cwnd,
+        .min_cwnd       = bictcp_min_cwnd,
+        .pkts_acked     = bictcp_acked,
+        .owner          = THIS_MODULE,
+        .name           = "bic",
+};
+
+static int __init bictcp_register(void)
+{
+        BUG_ON(sizeof(struct bictcp) > TCP_CA_PRIV_SIZE);
+        return tcp_register_congestion_control(&bictcp);
+}
+
+static void __exit bictcp_unregister(void)
+{
+        tcp_unregister_congestion_control(&bictcp);
+}
+
+module_init(bictcp_register);
+module_exit(bictcp_unregister);
+
+MODULE_AUTHOR("Stephen Hemminger");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("BIC TCP");
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
new file mode 100644
index 000000000000..4970d10a7785
--- /dev/null
+++ b/net/ipv4/tcp_cong.c
@@ -0,0 +1,237 @@
+/*
+ * Plugable TCP congestion control support and newReno
+ * congestion control.
+ * Based on ideas from I/O scheduler suport and Web100.
+ *
+ * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <net/tcp.h>
+
+static DEFINE_SPINLOCK(tcp_cong_list_lock);
+static LIST_HEAD(tcp_cong_list);
+
+/* Simple linear search, don't expect many entries! */
+static struct tcp_congestion_ops *tcp_ca_find(const char *name)
+{
+        struct tcp_congestion_ops *e;
+
+        list_for_each_entry_rcu(e, &tcp_cong_list, list) {
+                if (strcmp(e->name, name) == 0)
+                        return e;
+        }
+
+        return NULL;
+}
+
+/*
+ * Attach new congestion control algorthim to the list
+ * of available options.
+ */
+int tcp_register_congestion_control(struct tcp_congestion_ops *ca)
+{
+        int ret = 0;
+
+        /* all algorithms must implement ssthresh and cong_avoid ops */
+        if (!ca->ssthresh || !ca->cong_avoid || !ca->min_cwnd) {
+                printk(KERN_ERR "TCP %s does not implement required ops\n",
+                       ca->name);
+                return -EINVAL;
+        }
+
+        spin_lock(&tcp_cong_list_lock);
+        if (tcp_ca_find(ca->name)) {
+                printk(KERN_NOTICE "TCP %s already registered\n", ca->name);
+                ret = -EEXIST;
+        } else {
+                list_add_rcu(&ca->list, &tcp_cong_list);
+                printk(KERN_INFO "TCP %s registered\n", ca->name);
+        }
+        spin_unlock(&tcp_cong_list_lock);
+
+        return ret;
+}
+EXPORT_SYMBOL_GPL(tcp_register_congestion_control);
+
+/*
+ * Remove congestion control algorithm, called from
+ * the module's remove function.  Module ref counts are used
+ * to ensure that this can't be done till all sockets using
+ * that method are closed.
+ */
+void tcp_unregister_congestion_control(struct tcp_congestion_ops *ca)
+{
+        spin_lock(&tcp_cong_list_lock);
+        list_del_rcu(&ca->list);
+        spin_unlock(&tcp_cong_list_lock);
+}
+EXPORT_SYMBOL_GPL(tcp_unregister_congestion_control);
+
+/* Assign choice of congestion control. */
+void tcp_init_congestion_control(struct tcp_sock *tp)
+{
+        struct tcp_congestion_ops *ca;
+
+        if (tp->ca_ops != &tcp_init_congestion_ops)
+                return;
+
+        rcu_read_lock();
+        list_for_each_entry_rcu(ca, &tcp_cong_list, list) {
+                if (try_module_get(ca->owner)) {
+                        tp->ca_ops = ca;
+                        break;
+                }
+
+        }
+        rcu_read_unlock();
+
+        if (tp->ca_ops->init)
+                tp->ca_ops->init(tp);
+}
+
+/* Manage refcounts on socket close. */
+void tcp_cleanup_congestion_control(struct tcp_sock *tp)
+{
+        if (tp->ca_ops->release)
+                tp->ca_ops->release(tp);
+        module_put(tp->ca_ops->owner);
+}
+
+/* Used by sysctl to change default congestion control */
+int tcp_set_default_congestion_control(const char *name)
+{
+        struct tcp_congestion_ops *ca;
+        int ret = -ENOENT;
+
+        spin_lock(&tcp_cong_list_lock);
+        ca = tcp_ca_find(name);
+#ifdef CONFIG_KMOD
+        if (!ca) {
+                spin_unlock(&tcp_cong_list_lock);
+
+                request_module("tcp_%s", name);
+                spin_lock(&tcp_cong_list_lock);
+                ca = tcp_ca_find(name);
+        }
+#endif
+
+        if (ca) {
+                list_move(&ca->list, &tcp_cong_list);
+                ret = 0;
+        }
+        spin_unlock(&tcp_cong_list_lock);
+
+        return ret;
+}
+
+/* Get current default congestion control */
+void tcp_get_default_congestion_control(char *name)
+{
+        struct tcp_congestion_ops *ca;
+        /* We will always have reno... */
+        BUG_ON(list_empty(&tcp_cong_list));
+
+        rcu_read_lock();
+        ca = list_entry(tcp_cong_list.next, struct tcp_congestion_ops, list);
+        strncpy(name, ca->name, TCP_CA_NAME_MAX);
+        rcu_read_unlock();
+}
+
+/* Change congestion control for socket */
+int tcp_set_congestion_control(struct tcp_sock *tp, const char *name)
+{
+        struct tcp_congestion_ops *ca;
+        int err = 0;
+
+        rcu_read_lock();
+        ca = tcp_ca_find(name);
+        if (ca == tp->ca_ops)
+                goto out;
+
+        if (!ca)
+                err = -ENOENT;
+
+        else if (!try_module_get(ca->owner))
+                err = -EBUSY;
+
+        else {
+                tcp_cleanup_congestion_control(tp);
+                tp->ca_ops = ca;
+                if (tp->ca_ops->init)
+                        tp->ca_ops->init(tp);
+        }
+ out:
+        rcu_read_unlock();
+        return err;
+}
+
+/*
+ * TCP Reno congestion control
+ * This is special case used for fallback as well.
+ */
+/* This is Jacobson's slow start and congestion avoidance.
+ * SIGCOMM '88, p. 328.
+ */
+void tcp_reno_cong_avoid(struct tcp_sock *tp, u32 ack, u32 rtt, u32 in_flight,
+                         int flag)
+{
+        if (in_flight < tp->snd_cwnd)
+                return;
+
+        if (tp->snd_cwnd <= tp->snd_ssthresh) {
+                /* In "safe" area, increase. */
+                if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+                        tp->snd_cwnd++;
+        } else {
+                /* In dangerous area, increase slowly.
+                 * In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd
+                 */
+                if (tp->snd_cwnd_cnt >= tp->snd_cwnd) {
+                        if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+                                tp->snd_cwnd++;
+                        tp->snd_cwnd_cnt = 0;
+                } else
+                        tp->snd_cwnd_cnt++;
+        }
+}
+EXPORT_SYMBOL_GPL(tcp_reno_cong_avoid);
+
+/* Slow start threshold is half the congestion window (min 2) */
+u32 tcp_reno_ssthresh(struct tcp_sock *tp)
+{
+        return max(tp->snd_cwnd >> 1U, 2U);
+}
+EXPORT_SYMBOL_GPL(tcp_reno_ssthresh);
+
+/* Lower bound on congestion window. */
+u32 tcp_reno_min_cwnd(struct tcp_sock *tp)
+{
+        return tp->snd_ssthresh/2;
+}
+EXPORT_SYMBOL_GPL(tcp_reno_min_cwnd);
+
+struct tcp_congestion_ops tcp_reno = {
+        .name           = "reno",
+        .owner          = THIS_MODULE,
+        .ssthresh       = tcp_reno_ssthresh,
+        .cong_avoid     = tcp_reno_cong_avoid,
+        .min_cwnd       = tcp_reno_min_cwnd,
+};
+
+/* Initial congestion control used (until SYN)
+ * really reno under another name so we can tell difference
+ * during tcp_set_default_congestion_control
+ */
+struct tcp_congestion_ops tcp_init_congestion_ops  = {
+        .name           = "",
+        .owner          = THIS_MODULE,
+        .ssthresh       = tcp_reno_ssthresh,
+        .cong_avoid     = tcp_reno_cong_avoid,
+        .min_cwnd       = tcp_reno_min_cwnd,
+};
+EXPORT_SYMBOL_GPL(tcp_init_congestion_ops);
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index 8faa8948f75c..f66945cb158f 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -42,15 +42,8 @@ struct tcpdiag_entry
 
 static struct sock *tcpnl;
 
-
 #define TCPDIAG_PUT(skb, attrtype, attrlen) \
-({ int rtalen = RTA_LENGTH(attrlen);        \
-   struct rtattr *rta;                      \
-   if (skb_tailroom(skb) < RTA_ALIGN(rtalen)) goto nlmsg_failure; \
-   rta = (void*)__skb_put(skb, RTA_ALIGN(rtalen)); \
-   rta->rta_type = attrtype;                \
-   rta->rta_len = rtalen;                   \
-   RTA_DATA(rta); })
+        RTA_DATA(__RTA_PUT(skb, attrtype, attrlen))
 
 static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
                         int ext, u32 pid, u32 seq, u16 nlmsg_flags)
@@ -61,7 +54,6 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
         struct nlmsghdr  *nlh;
         struct tcp_info  *info = NULL;
         struct tcpdiag_meminfo  *minfo = NULL;
-        struct tcpvegas_info *vinfo = NULL;
         unsigned char    *b = skb->tail;
 
         nlh = NLMSG_PUT(skb, pid, seq, TCPDIAG_GETSOCK, sizeof(*r));
@@ -73,9 +65,11 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
                 if (ext & (1<<(TCPDIAG_INFO-1)))
                         info = TCPDIAG_PUT(skb, TCPDIAG_INFO, sizeof(*info));
                 
-                if ((tcp_is_westwood(tp) || tcp_is_vegas(tp))
-                    && (ext & (1<<(TCPDIAG_VEGASINFO-1))))
-                        vinfo = TCPDIAG_PUT(skb, TCPDIAG_VEGASINFO, sizeof(*vinfo));
+                if (ext & (1<<(TCPDIAG_CONG-1))) {
+                        size_t len = strlen(tp->ca_ops->name);
+                        strcpy(TCPDIAG_PUT(skb, TCPDIAG_CONG, len+1),
+                               tp->ca_ops->name);
+                }
         }
         r->tcpdiag_family = sk->sk_family;
         r->tcpdiag_state = sk->sk_state;
@@ -166,23 +160,13 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
         if (info) 
                 tcp_get_info(sk, info);
 
-        if (vinfo) {
-                if (tcp_is_vegas(tp)) {
-                        vinfo->tcpv_enabled = tp->vegas.doing_vegas_now;
-                        vinfo->tcpv_rttcnt = tp->vegas.cntRTT;
-                        vinfo->tcpv_rtt = jiffies_to_usecs(tp->vegas.baseRTT);
-                        vinfo->tcpv_minrtt = jiffies_to_usecs(tp->vegas.minRTT);
-                } else {
-                        vinfo->tcpv_enabled = 0;
-                        vinfo->tcpv_rttcnt = 0;
-                        vinfo->tcpv_rtt = jiffies_to_usecs(tp->westwood.rtt);
-                        vinfo->tcpv_minrtt = jiffies_to_usecs(tp->westwood.rtt_min);
-                }
-        }
+        if (sk->sk_state < TCP_TIME_WAIT && tp->ca_ops->get_info)
+                tp->ca_ops->get_info(tp, ext, skb);
 
         nlh->nlmsg_len = skb->tail - b;
         return skb->len;
 
+rtattr_failure:
 nlmsg_failure:
         skb_trim(skb, b - skb->data);
         return -1;
@@ -455,9 +439,10 @@ static int tcpdiag_dump_sock(struct sk_buff *skb, struct sock *sk,
 }
 
 static int tcpdiag_fill_req(struct sk_buff *skb, struct sock *sk,
-                            struct open_request *req,
+                            struct request_sock *req,
                             u32 pid, u32 seq)
 {
+        const struct inet_request_sock *ireq = inet_rsk(req);
         struct inet_sock *inet = inet_sk(sk);
         unsigned char *b = skb->tail;
         struct tcpdiagmsg *r;
@@ -482,9 +467,9 @@ static int tcpdiag_fill_req(struct sk_buff *skb, struct sock *sk,
                 tmo = 0;
 
         r->id.tcpdiag_sport = inet->sport;
-        r->id.tcpdiag_dport = req->rmt_port;
-        r->id.tcpdiag_src[0] = req->af.v4_req.loc_addr;
-        r->id.tcpdiag_dst[0] = req->af.v4_req.rmt_addr;
+        r->id.tcpdiag_dport = ireq->rmt_port;
+        r->id.tcpdiag_src[0] = ireq->loc_addr;
+        r->id.tcpdiag_dst[0] = ireq->rmt_addr;
         r->tcpdiag_expires = jiffies_to_msecs(tmo),
         r->tcpdiag_rqueue = 0;
         r->tcpdiag_wqueue = 0;
@@ -493,9 +478,9 @@ static int tcpdiag_fill_req(struct sk_buff *skb, struct sock *sk,
 #ifdef CONFIG_IP_TCPDIAG_IPV6
         if (r->tcpdiag_family == AF_INET6) {
                 ipv6_addr_copy((struct in6_addr *)r->id.tcpdiag_src,
-                               &req->af.v6_req.loc_addr);
+                               &tcp6_rsk(req)->loc_addr);
                 ipv6_addr_copy((struct in6_addr *)r->id.tcpdiag_dst,
-                               &req->af.v6_req.rmt_addr);
+                               &tcp6_rsk(req)->rmt_addr);
         }
 #endif
         nlh->nlmsg_len = skb->tail - b;
@@ -513,7 +498,7 @@ static int tcpdiag_dump_reqs(struct sk_buff *skb, struct sock *sk,
         struct tcpdiag_entry entry;
         struct tcpdiagreq *r = NLMSG_DATA(cb->nlh);
         struct tcp_sock *tp = tcp_sk(sk);
-        struct tcp_listen_opt *lopt;
+        struct listen_sock *lopt;
         struct rtattr *bc = NULL;
         struct inet_sock *inet = inet_sk(sk);
         int j, s_j;
@@ -528,9 +513,9 @@ static int tcpdiag_dump_reqs(struct sk_buff *skb, struct sock *sk,
 
         entry.family = sk->sk_family;
 
-        read_lock_bh(&tp->syn_wait_lock);
+        read_lock_bh(&tp->accept_queue.syn_wait_lock);
 
-        lopt = tp->listen_opt;
+        lopt = tp->accept_queue.listen_opt;
         if (!lopt || !lopt->qlen)
                 goto out;
 
@@ -541,13 +526,15 @@ static int tcpdiag_dump_reqs(struct sk_buff *skb, struct sock *sk,
         }
 
         for (j = s_j; j < TCP_SYNQ_HSIZE; j++) {
-                struct open_request *req, *head = lopt->syn_table[j];
+                struct request_sock *req, *head = lopt->syn_table[j];
 
                 reqnum = 0;
                 for (req = head; req; reqnum++, req = req->dl_next) {
+                        struct inet_request_sock *ireq = inet_rsk(req);
+
                         if (reqnum < s_reqnum)
                                 continue;
-                        if (r->id.tcpdiag_dport != req->rmt_port &&
+                        if (r->id.tcpdiag_dport != ireq->rmt_port &&
                             r->id.tcpdiag_dport)
                                 continue;
 
@@ -555,16 +542,16 @@ static int tcpdiag_dump_reqs(struct sk_buff *skb, struct sock *sk,
                                 entry.saddr =
 #ifdef CONFIG_IP_TCPDIAG_IPV6
                                         (entry.family == AF_INET6) ?
-                                        req->af.v6_req.loc_addr.s6_addr32 :
+                                        tcp6_rsk(req)->loc_addr.s6_addr32 :
 #endif
-                                        &req->af.v4_req.loc_addr;
+                                        &ireq->loc_addr;
                                 entry.daddr = 
 #ifdef CONFIG_IP_TCPDIAG_IPV6
                                         (entry.family == AF_INET6) ?
-                                        req->af.v6_req.rmt_addr.s6_addr32 :
+                                        tcp6_rsk(req)->rmt_addr.s6_addr32 :
 #endif
-                                        &req->af.v4_req.rmt_addr;
-                                entry.dport = ntohs(req->rmt_port);
+                                        &ireq->rmt_addr;
+                                entry.dport = ntohs(ireq->rmt_port);
 
                                 if (!tcpdiag_bc_run(RTA_DATA(bc),
                                                     RTA_PAYLOAD(bc), &entry))
@@ -585,7 +572,7 @@ static int tcpdiag_dump_reqs(struct sk_buff *skb, struct sock *sk,
         }
 
 out:
-        read_unlock_bh(&tp->syn_wait_lock);
+        read_unlock_bh(&tp->accept_queue.syn_wait_lock);
 
         return err;
 }
diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c
new file mode 100644
index 000000000000..36c51f8136bf
--- /dev/null
+++ b/net/ipv4/tcp_highspeed.c
@@ -0,0 +1,181 @@
+/*
+ * Sally Floyd's High Speed TCP (RFC 3649) congestion control
+ *
+ * See http://www.icir.org/floyd/hstcp.html
+ *
+ * John Heffner <jheffner@psc.edu>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <net/tcp.h>
+
+
+/* From AIMD tables from RFC 3649 appendix B,
+ * with fixed-point MD scaled <<8.
+ */
+static const struct hstcp_aimd_val {
+        unsigned int cwnd;
+        unsigned int md;
+} hstcp_aimd_vals[] = {
+ {     38,  128, /*  0.50 */ },
+ {    118,  112, /*  0.44 */ },
+ {    221,  104, /*  0.41 */ },
+ {    347,   98, /*  0.38 */ },
+ {    495,   93, /*  0.37 */ },
+ {    663,   89, /*  0.35 */ },
+ {    851,   86, /*  0.34 */ },
+ {   1058,   83, /*  0.33 */ },
+ {   1284,   81, /*  0.32 */ },
+ {   1529,   78, /*  0.31 */ },
+ {   1793,   76, /*  0.30 */ },
+ {   2076,   74, /*  0.29 */ },
+ {   2378,   72, /*  0.28 */ },
+ {   2699,   71, /*  0.28 */ },
+ {   3039,   69, /*  0.27 */ },
+ {   3399,   68, /*  0.27 */ },
+ {   3778,   66, /*  0.26 */ },
+ {   4177,   65, /*  0.26 */ },
+ {   4596,   64, /*  0.25 */ },
+ {   5036,   62, /*  0.25 */ },
+ {   5497,   61, /*  0.24 */ },
+ {   5979,   60, /*  0.24 */ },
+ {   6483,   59, /*  0.23 */ },
+ {   7009,   58, /*  0.23 */ },
+ {   7558,   57, /*  0.22 */ },
+ {   8130,   56, /*  0.22 */ },
+ {   8726,   55, /*  0.22 */ },
+ {   9346,   54, /*  0.21 */ },
+ {   9991,   53, /*  0.21 */ },
+ {  10661,   52, /*  0.21 */ },
+ {  11358,   52, /*  0.20 */ },
+ {  12082,   51, /*  0.20 */ },
+ {  12834,   50, /*  0.20 */ },
+ {  13614,   49, /*  0.19 */ },
+ {  14424,   48, /*  0.19 */ },
+ {  15265,   48, /*  0.19 */ },
+ {  16137,   47, /*  0.19 */ },
+ {  17042,   46, /*  0.18 */ },
+ {  17981,   45, /*  0.18 */ },
+ {  18955,   45, /*  0.18 */ },
+ {  19965,   44, /*  0.17 */ },
+ {  21013,   43, /*  0.17 */ },
+ {  22101,   43, /*  0.17 */ },
+ {  23230,   42, /*  0.17 */ },
+ {  24402,   41, /*  0.16 */ },
+ {  25618,   41, /*  0.16 */ },
+ {  26881,   40, /*  0.16 */ },
+ {  28193,   39, /*  0.16 */ },
+ {  29557,   39, /*  0.15 */ },
+ {  30975,   38, /*  0.15 */ },
+ {  32450,   38, /*  0.15 */ },
+ {  33986,   37, /*  0.15 */ },
+ {  35586,   36, /*  0.14 */ },
+ {  37253,   36, /*  0.14 */ },
+ {  38992,   35, /*  0.14 */ },
+ {  40808,   35, /*  0.14 */ },
+ {  42707,   34, /*  0.13 */ },
+ {  44694,   33, /*  0.13 */ },
+ {  46776,   33, /*  0.13 */ },
+ {  48961,   32, /*  0.13 */ },
+ {  51258,   32, /*  0.13 */ },
+ {  53677,   31, /*  0.12 */ },
+ {  56230,   30, /*  0.12 */ },
+ {  58932,   30, /*  0.12 */ },
+ {  61799,   29, /*  0.12 */ },
+ {  64851,   28, /*  0.11 */ },
+ {  68113,   28, /*  0.11 */ },
+ {  71617,   27, /*  0.11 */ },
+ {  75401,   26, /*  0.10 */ },
+ {  79517,   26, /*  0.10 */ },
+ {  84035,   25, /*  0.10 */ },
+ {  89053,   24, /*  0.10 */ },
+};
+
+#define HSTCP_AIMD_MAX  ARRAY_SIZE(hstcp_aimd_vals)
+
+struct hstcp {
+        u32     ai;
+};
+
+static void hstcp_init(struct tcp_sock *tp)
+{
+        struct hstcp *ca = tcp_ca(tp);
+
+        ca->ai = 0;
+
+        /* Ensure the MD arithmetic works.  This is somewhat pedantic,
+         * since I don't think we will see a cwnd this large. :) */
+        tp->snd_cwnd_clamp = min_t(u32, tp->snd_cwnd_clamp, 0xffffffff/128);
+}
+
+static void hstcp_cong_avoid(struct tcp_sock *tp, u32 adk, u32 rtt,
+                             u32 in_flight, int good)
+{
+        struct hstcp *ca = tcp_ca(tp);
+
+        if (in_flight < tp->snd_cwnd)
+                return;
+
+        if (tp->snd_cwnd <= tp->snd_ssthresh) {
+                if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+                        tp->snd_cwnd++;
+        } else {
+                /* Update AIMD parameters */
+                if (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd) {
+                        while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
+                               ca->ai < HSTCP_AIMD_MAX)
+                                ca->ai++;
+                } else if (tp->snd_cwnd < hstcp_aimd_vals[ca->ai].cwnd) {
+                        while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
+                               ca->ai > 0)
+                                ca->ai--;
+                }
+
+                /* Do additive increase */
+                if (tp->snd_cwnd < tp->snd_cwnd_clamp) {
+                        tp->snd_cwnd_cnt += ca->ai;
+                        if (tp->snd_cwnd_cnt >= tp->snd_cwnd) {
+                                tp->snd_cwnd++;
+                                tp->snd_cwnd_cnt -= tp->snd_cwnd;
+                        }
+                }
+        }
+}
+
+static u32 hstcp_ssthresh(struct tcp_sock *tp)
+{
+        struct hstcp *ca = tcp_ca(tp);
+
+        /* Do multiplicative decrease */
+        return max(tp->snd_cwnd - ((tp->snd_cwnd * hstcp_aimd_vals[ca->ai].md) >> 8), 2U);
+}
+
+
+static struct tcp_congestion_ops tcp_highspeed = {
+        .init           = hstcp_init,
+        .ssthresh       = hstcp_ssthresh,
+        .cong_avoid     = hstcp_cong_avoid,
+        .min_cwnd       = tcp_reno_min_cwnd,
+
+        .owner          = THIS_MODULE,
+        .name           = "highspeed"
+};
+
+static int __init hstcp_register(void)
+{
+        BUG_ON(sizeof(struct hstcp) > TCP_CA_PRIV_SIZE);
+        return tcp_register_congestion_control(&tcp_highspeed);
+}
+
+static void __exit hstcp_unregister(void)
+{
+        tcp_unregister_congestion_control(&tcp_highspeed);
+}
+
+module_init(hstcp_register);
+module_exit(hstcp_unregister);
+
+MODULE_AUTHOR("John Heffner");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("High Speed TCP");
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
new file mode 100644
index 000000000000..40168275acf9
--- /dev/null
+++ b/net/ipv4/tcp_htcp.c
@@ -0,0 +1,289 @@
+/*
+ * H-TCP congestion control. The algorithm is detailed in:
+ * R.N.Shorten, D.J.Leith:
+ *   "H-TCP: TCP for high-speed and long-distance networks"
+ *   Proc. PFLDnet, Argonne, 2004.
+ * http://www.hamilton.ie/net/htcp3.pdf
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <net/tcp.h>
+
+#define ALPHA_BASE      (1<<7)  /* 1.0 with shift << 7 */
+#define BETA_MIN        (1<<6)  /* 0.5 with shift << 7 */
+#define BETA_MAX        102     /* 0.8 with shift << 7 */
+
+static int use_rtt_scaling = 1;
+module_param(use_rtt_scaling, int, 0644);
+MODULE_PARM_DESC(use_rtt_scaling, "turn on/off RTT scaling");
+
+static int use_bandwidth_switch = 1;
+module_param(use_bandwidth_switch, int, 0644);
+MODULE_PARM_DESC(use_bandwidth_switch, "turn on/off bandwidth switcher");
+
+struct htcp {
+        u16     alpha;          /* Fixed point arith, << 7 */
+        u8      beta;           /* Fixed point arith, << 7 */
+        u8      modeswitch;     /* Delay modeswitch until we had at least one congestion event */
+        u8      ccount;         /* Number of RTTs since last congestion event */
+        u8      undo_ccount;
+        u16     packetcount;
+        u32     minRTT;
+        u32     maxRTT;
+        u32     snd_cwnd_cnt2;
+
+        u32     undo_maxRTT;
+        u32     undo_old_maxB;
+
+        /* Bandwidth estimation */
+        u32     minB;
+        u32     maxB;
+        u32     old_maxB;
+        u32     Bi;
+        u32     lasttime;
+};
+
+static inline void htcp_reset(struct htcp *ca)
+{
+        ca->undo_ccount = ca->ccount;
+        ca->undo_maxRTT = ca->maxRTT;
+        ca->undo_old_maxB = ca->old_maxB;
+
+        ca->ccount = 0;
+        ca->snd_cwnd_cnt2 = 0;
+}
+
+static u32 htcp_cwnd_undo(struct tcp_sock *tp)
+{
+        struct htcp *ca = tcp_ca(tp);
+        ca->ccount = ca->undo_ccount;
+        ca->maxRTT = ca->undo_maxRTT;
+        ca->old_maxB = ca->undo_old_maxB;
+        return max(tp->snd_cwnd, (tp->snd_ssthresh<<7)/ca->beta);
+}
+
+static inline void measure_rtt(struct tcp_sock *tp)
+{
+        struct htcp *ca = tcp_ca(tp);
+        u32 srtt = tp->srtt>>3;
+
+        /* keep track of minimum RTT seen so far, minRTT is zero at first */
+        if (ca->minRTT > srtt || !ca->minRTT)
+                ca->minRTT = srtt;
+
+        /* max RTT */
+        if (tp->ca_state == TCP_CA_Open && tp->snd_ssthresh < 0xFFFF && ca->ccount > 3) {
+                if (ca->maxRTT < ca->minRTT)
+                        ca->maxRTT = ca->minRTT;
+                if (ca->maxRTT < srtt && srtt <= ca->maxRTT+HZ/50)
+                        ca->maxRTT = srtt;
+        }
+}
+
+static void measure_achieved_throughput(struct tcp_sock *tp, u32 pkts_acked)
+{
+        struct htcp *ca = tcp_ca(tp);
+        u32 now = tcp_time_stamp;
+
+        /* achieved throughput calculations */
+        if (tp->ca_state != TCP_CA_Open && tp->ca_state != TCP_CA_Disorder) {
+                ca->packetcount = 0;
+                ca->lasttime = now;
+                return;
+        }
+
+        ca->packetcount += pkts_acked;
+
+        if (ca->packetcount >= tp->snd_cwnd - (ca->alpha>>7? : 1)
+                        && now - ca->lasttime >= ca->minRTT
+                        && ca->minRTT > 0) {
+                __u32 cur_Bi = ca->packetcount*HZ/(now - ca->lasttime);
+                if (ca->ccount <= 3) {
+                        /* just after backoff */
+                        ca->minB = ca->maxB = ca->Bi = cur_Bi;
+                } else {
+                        ca->Bi = (3*ca->Bi + cur_Bi)/4;
+                        if (ca->Bi > ca->maxB)
+                                ca->maxB = ca->Bi;
+                        if (ca->minB > ca->maxB)
+                                ca->minB = ca->maxB;
+                }
+                ca->packetcount = 0;
+                ca->lasttime = now;
+        }
+}
+
+static inline void htcp_beta_update(struct htcp *ca, u32 minRTT, u32 maxRTT)
+{
+        if (use_bandwidth_switch) {
+                u32 maxB = ca->maxB;
+                u32 old_maxB = ca->old_maxB;
+                ca->old_maxB = ca->maxB;
+
+                if (!between(5*maxB, 4*old_maxB, 6*old_maxB)) {
+                        ca->beta = BETA_MIN;
+                        ca->modeswitch = 0;
+                        return;
+                }
+        }
+
+        if (ca->modeswitch && minRTT > max(HZ/100, 1) && maxRTT) {
+                ca->beta = (minRTT<<7)/maxRTT;
+                if (ca->beta < BETA_MIN)
+                        ca->beta = BETA_MIN;
+                else if (ca->beta > BETA_MAX)
+                        ca->beta = BETA_MAX;
+        } else {
+                ca->beta = BETA_MIN;
+                ca->modeswitch = 1;
+        }
+}
+
+static inline void htcp_alpha_update(struct htcp *ca)
+{
+        u32 minRTT = ca->minRTT;
+        u32 factor = 1;
+        u32 diff = ca->ccount * minRTT; /* time since last backoff */
+
+        if (diff > HZ) {
+                diff -= HZ;
+                factor = 1+ ( 10*diff + ((diff/2)*(diff/2)/HZ) )/HZ;
+        }
+
+        if (use_rtt_scaling && minRTT) {
+                u32 scale = (HZ<<3)/(10*minRTT);
+                scale = min(max(scale, 1U<<2), 10U<<3); /* clamping ratio to interval [0.5,10]<<3 */
+                factor = (factor<<3)/scale;
+                if (!factor)
+                        factor = 1;
+        }
+
+        ca->alpha = 2*factor*((1<<7)-ca->beta);
+        if (!ca->alpha)
+                ca->alpha = ALPHA_BASE;
+}
+
+/* After we have the rtt data to calculate beta, we'd still prefer to wait one
+ * rtt before we adjust our beta to ensure we are working from a consistent
+ * data.
+ *
+ * This function should be called when we hit a congestion event since only at
+ * that point do we really have a real sense of maxRTT (the queues en route
+ * were getting just too full now).
+ */
+static void htcp_param_update(struct tcp_sock *tp)
+{
+        struct htcp *ca = tcp_ca(tp);
+        u32 minRTT = ca->minRTT;
+        u32 maxRTT = ca->maxRTT;
+
+        htcp_beta_update(ca, minRTT, maxRTT);
+        htcp_alpha_update(ca);
+
+        /* add slowly fading memory for maxRTT to accommodate routing changes etc */
+        if (minRTT > 0 && maxRTT > minRTT)
+                ca->maxRTT = minRTT + ((maxRTT-minRTT)*95)/100;
+}
+
+static u32 htcp_recalc_ssthresh(struct tcp_sock *tp)
+{
+        struct htcp *ca = tcp_ca(tp);
+        htcp_param_update(tp);
+        return max((tp->snd_cwnd * ca->beta) >> 7, 2U);
+}
+
+static void htcp_cong_avoid(struct tcp_sock *tp, u32 ack, u32 rtt,
+                            u32 in_flight, int data_acked)
+{
+        struct htcp *ca = tcp_ca(tp);
+
+        if (in_flight < tp->snd_cwnd)
+                return;
+
+        if (tp->snd_cwnd <= tp->snd_ssthresh) {
+                /* In "safe" area, increase. */
+                if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+                        tp->snd_cwnd++;
+        } else {
+                measure_rtt(tp);
+
+                /* keep track of number of round-trip times since last backoff event */
+                if (ca->snd_cwnd_cnt2++ > tp->snd_cwnd) {
+                        ca->ccount++;
+                        ca->snd_cwnd_cnt2 = 0;
+                        htcp_alpha_update(ca);
+                }
+
+                /* In dangerous area, increase slowly.
+                 * In theory this is tp->snd_cwnd += alpha / tp->snd_cwnd
+                 */
+                if ((tp->snd_cwnd_cnt++ * ca->alpha)>>7 >= tp->snd_cwnd) {
+                        if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+                                tp->snd_cwnd++;
+                        tp->snd_cwnd_cnt = 0;
+                        ca->ccount++;
+                }
+        }
+}
+
+/* Lower bound on congestion window. */
+static u32 htcp_min_cwnd(struct tcp_sock *tp)
+{
+        return tp->snd_ssthresh;
+}
+
+
+static void htcp_init(struct tcp_sock *tp)
+{
+        struct htcp *ca = tcp_ca(tp);
+
+        memset(ca, 0, sizeof(struct htcp));
+        ca->alpha = ALPHA_BASE;
+        ca->beta = BETA_MIN;
+}
+
+static void htcp_state(struct tcp_sock *tp, u8 new_state)
+{
+        switch (new_state) {
+        case TCP_CA_CWR:
+        case TCP_CA_Recovery:
+        case TCP_CA_Loss:
+                htcp_reset(tcp_ca(tp));
+                break;
+        }
+}
+
+static struct tcp_congestion_ops htcp = {
+        .init           = htcp_init,
+        .ssthresh       = htcp_recalc_ssthresh,
+        .min_cwnd       = htcp_min_cwnd,
+        .cong_avoid     = htcp_cong_avoid,
+        .set_state      = htcp_state,
+        .undo_cwnd      = htcp_cwnd_undo,
+        .pkts_acked     = measure_achieved_throughput,
+        .owner          = THIS_MODULE,
+        .name           = "htcp",
+};
+
+static int __init htcp_register(void)
+{
+        BUG_ON(sizeof(struct htcp) > TCP_CA_PRIV_SIZE);
+        BUILD_BUG_ON(BETA_MIN >= BETA_MAX);
+        if (!use_bandwidth_switch)
+                htcp.pkts_acked = NULL;
+        return tcp_register_congestion_control(&htcp);
+}
+
+static void __exit htcp_unregister(void)
+{
+        tcp_unregister_congestion_control(&htcp);
+}
+
+module_init(htcp_register);
+module_exit(htcp_unregister);
+
+MODULE_AUTHOR("Baruch Even");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("H-TCP");
diff --git a/net/ipv4/tcp_hybla.c b/net/ipv4/tcp_hybla.c
new file mode 100644
index 000000000000..13a66342c304
--- /dev/null
+++ b/net/ipv4/tcp_hybla.c
@@ -0,0 +1,187 @@
+/*
+ * TCP HYBLA
+ *
+ * TCP-HYBLA Congestion control algorithm, based on:
+ *   C.Caini, R.Firrincieli, "TCP-Hybla: A TCP Enhancement
+ *   for Heterogeneous Networks",
+ *   International Journal on satellite Communications,
+ *                                     September 2004
+ *    Daniele Lacamera
+ *    root at danielinux.net
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <net/tcp.h>
+
+/* Tcp Hybla structure. */
+struct hybla {
+        u8    hybla_en;
+        u32   snd_cwnd_cents; /* Keeps increment values when it is <1, <<7 */
+        u32   rho;            /* Rho parameter, integer part  */
+        u32   rho2;           /* Rho * Rho, integer part */
+        u32   rho_3ls;        /* Rho parameter, <<3 */
+        u32   rho2_7ls;       /* Rho^2, <<7     */
+        u32   minrtt;         /* Minimum smoothed round trip time value seen */
+};
+
+/* Hybla reference round trip time (default= 1/40 sec = 25 ms),
+   expressed in jiffies */
+static int rtt0 = 25;
+module_param(rtt0, int, 0644);
+MODULE_PARM_DESC(rtt0, "reference rout trip time (ms)");
+
+
+/* This is called to refresh values for hybla parameters */
+static inline void hybla_recalc_param (struct tcp_sock *tp)
+{
+        struct hybla *ca = tcp_ca(tp);
+
+        ca->rho_3ls = max_t(u32, tp->srtt / msecs_to_jiffies(rtt0), 8);
+        ca->rho = ca->rho_3ls >> 3;
+        ca->rho2_7ls = (ca->rho_3ls * ca->rho_3ls) << 1;
+        ca->rho2 = ca->rho2_7ls >>7;
+}
+
+static void hybla_init(struct tcp_sock *tp)
+{
+        struct hybla *ca = tcp_ca(tp);
+
+        ca->rho = 0;
+        ca->rho2 = 0;
+        ca->rho_3ls = 0;
+        ca->rho2_7ls = 0;
+        ca->snd_cwnd_cents = 0;
+        ca->hybla_en = 1;
+        tp->snd_cwnd = 2;
+        tp->snd_cwnd_clamp = 65535;
+
+        /* 1st Rho measurement based on initial srtt */
+        hybla_recalc_param(tp);
+
+        /* set minimum rtt as this is the 1st ever seen */
+        ca->minrtt = tp->srtt;
+        tp->snd_cwnd = ca->rho;
+}
+
+static void hybla_state(struct tcp_sock *tp, u8 ca_state)
+{
+        struct hybla *ca = tcp_ca(tp);
+
+        ca->hybla_en = (ca_state == TCP_CA_Open);
+}
+
+static inline u32 hybla_fraction(u32 odds)
+{
+        static const u32 fractions[] = {
+                128, 139, 152, 165, 181, 197, 215, 234,
+        };
+
+        return (odds < ARRAY_SIZE(fractions)) ? fractions[odds] : 128;
+}
+
+/* TCP Hybla main routine.
+ * This is the algorithm behavior:
+ *     o Recalc Hybla parameters if min_rtt has changed
+ *     o Give cwnd a new value based on the model proposed
+ *     o remember increments <1
+ */
+static void hybla_cong_avoid(struct tcp_sock *tp, u32 ack, u32 rtt,
+                            u32 in_flight, int flag)
+{
+        struct hybla *ca = tcp_ca(tp);
+        u32 increment, odd, rho_fractions;
+        int is_slowstart = 0;
+
+        /*  Recalculate rho only if this srtt is the lowest */
+        if (tp->srtt < ca->minrtt){
+                hybla_recalc_param(tp);
+                ca->minrtt = tp->srtt;
+        }
+
+        if (!ca->hybla_en)
+                return tcp_reno_cong_avoid(tp, ack, rtt, in_flight, flag);
+
+        if (in_flight < tp->snd_cwnd)
+                return;
+
+        if (ca->rho == 0)
+                hybla_recalc_param(tp);
+
+        rho_fractions = ca->rho_3ls - (ca->rho << 3);
+
+        if (tp->snd_cwnd < tp->snd_ssthresh) {
+                /*
+                 * slow start
+                 *      INC = 2^RHO - 1
+                 * This is done by splitting the rho parameter
+                 * into 2 parts: an integer part and a fraction part.
+                 * Inrement<<7 is estimated by doing:
+                 *             [2^(int+fract)]<<7
+                 * that is equal to:
+                 *             (2^int)  *  [(2^fract) <<7]
+                 * 2^int is straightly computed as 1<<int,
+                 * while we will use hybla_slowstart_fraction_increment() to
+                 * calculate 2^fract in a <<7 value.
+                 */
+                is_slowstart = 1;
+                increment = ((1 << ca->rho) * hybla_fraction(rho_fractions))
+                        - 128;
+        } else {
+                /*
+                 * congestion avoidance
+                 * INC = RHO^2 / W
+                 * as long as increment is estimated as (rho<<7)/window
+                 * it already is <<7 and we can easily count its fractions.
+                 */
+                increment = ca->rho2_7ls / tp->snd_cwnd;
+                if (increment < 128)
+                        tp->snd_cwnd_cnt++;
+        }
+
+        odd = increment % 128;
+        tp->snd_cwnd += increment >> 7;
+        ca->snd_cwnd_cents += odd;
+
+        /* check when fractions goes >=128 and increase cwnd by 1. */
+        while(ca->snd_cwnd_cents >= 128) {
+                tp->snd_cwnd++;
+                ca->snd_cwnd_cents -= 128;
+                tp->snd_cwnd_cnt = 0;
+        }
+
+        /* clamp down slowstart cwnd to ssthresh value. */
+        if (is_slowstart)
+                tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
+
+        tp->snd_cwnd = min_t(u32, tp->snd_cwnd, tp->snd_cwnd_clamp);
+}
+
+static struct tcp_congestion_ops tcp_hybla = {
+        .init           = hybla_init,
+        .ssthresh       = tcp_reno_ssthresh,
+        .min_cwnd       = tcp_reno_min_cwnd,
+        .cong_avoid     = hybla_cong_avoid,
+        .set_state      = hybla_state,
+
+        .owner          = THIS_MODULE,
+        .name           = "hybla"
+};
+
+static int __init hybla_register(void)
+{
+        BUG_ON(sizeof(struct hybla) > TCP_CA_PRIV_SIZE);
+        return tcp_register_congestion_control(&tcp_hybla);
+}
+
+static void __exit hybla_unregister(void)
+{
+        tcp_unregister_congestion_control(&tcp_hybla);
+}
+
+module_init(hybla_register);
+module_exit(hybla_unregister);
+
+MODULE_AUTHOR("Daniele Lacamera");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("TCP Hybla");
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5bad504630a3..7bbbbc33eb4b 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -61,7 +61,6 @@
  *              Panu Kuhlberg:          Experimental audit of TCP (re)transmission
  *                                      engine. Lots of bugs are found.
  *              Pasi Sarolahti:         F-RTO for dealing with spurious RTOs
- *              Angelo Dell'Aera:       TCP Westwood+ support
  */
 
 #include <linux/config.h>
@@ -88,23 +87,9 @@ int sysctl_tcp_rfc1337;
 int sysctl_tcp_max_orphans = NR_FILE;
 int sysctl_tcp_frto;
 int sysctl_tcp_nometrics_save;
-int sysctl_tcp_westwood;
-int sysctl_tcp_vegas_cong_avoid;
 
 int sysctl_tcp_moderate_rcvbuf = 1;
 
-/* Default values of the Vegas variables, in fixed-point representation
- * with V_PARAM_SHIFT bits to the right of the binary point.
- */
-#define V_PARAM_SHIFT 1
-int sysctl_tcp_vegas_alpha = 1<<V_PARAM_SHIFT;
-int sysctl_tcp_vegas_beta  = 3<<V_PARAM_SHIFT;
-int sysctl_tcp_vegas_gamma = 1<<V_PARAM_SHIFT;
-int sysctl_tcp_bic = 1;
-int sysctl_tcp_bic_fast_convergence = 1;
-int sysctl_tcp_bic_low_window = 14;
-int sysctl_tcp_bic_beta = 819;          /* = 819/1024 (BICTCP_BETA_SCALE) */
-
 #define FLAG_DATA               0x01 /* Incoming frame contained data.          */
 #define FLAG_WIN_UPDATE         0x02 /* Incoming ACK was a window update.       */
 #define FLAG_DATA_ACKED         0x04 /* This ACK acknowledged new data.         */
@@ -333,15 +318,6 @@ static void tcp_init_buffer_space(struct sock *sk)
         tp->snd_cwnd_stamp = tcp_time_stamp;
 }
 
-static void init_bictcp(struct tcp_sock *tp)
-{
-        tp->bictcp.cnt = 0;
-
-        tp->bictcp.last_max_cwnd = 0;
-        tp->bictcp.last_cwnd = 0;
-        tp->bictcp.last_stamp = 0;
-}
-
 /* 5. Recalculate window clamp after socket hit its memory bounds. */
 static void tcp_clamp_window(struct sock *sk, struct tcp_sock *tp)
 {
@@ -558,45 +534,6 @@ static void tcp_event_data_recv(struct sock *sk, struct tcp_sock *tp, struct sk_
                 tcp_grow_window(sk, tp, skb);
 }
 
-/* When starting a new connection, pin down the current choice of 
- * congestion algorithm.
- */
-void tcp_ca_init(struct tcp_sock *tp)
-{
-        if (sysctl_tcp_westwood) 
-                tp->adv_cong = TCP_WESTWOOD;
-        else if (sysctl_tcp_bic)
-                tp->adv_cong = TCP_BIC;
-        else if (sysctl_tcp_vegas_cong_avoid) {
-                tp->adv_cong = TCP_VEGAS;
-                tp->vegas.baseRTT = 0x7fffffff;
-                tcp_vegas_enable(tp);
-        } 
-}
-
-/* Do RTT sampling needed for Vegas.
- * Basically we:
- *   o min-filter RTT samples from within an RTT to get the current
- *     propagation delay + queuing delay (we are min-filtering to try to
- *     avoid the effects of delayed ACKs)
- *   o min-filter RTT samples from a much longer window (forever for now)
- *     to find the propagation delay (baseRTT)
- */
-static inline void vegas_rtt_calc(struct tcp_sock *tp, __u32 rtt)
-{
-        __u32 vrtt = rtt + 1; /* Never allow zero rtt or baseRTT */
-
-        /* Filter to find propagation delay: */
-        if (vrtt < tp->vegas.baseRTT) 
-                tp->vegas.baseRTT = vrtt;
-
-        /* Find the min RTT during the last RTT to find
-         * the current prop. delay + queuing delay:
-         */
-        tp->vegas.minRTT = min(tp->vegas.minRTT, vrtt);
-        tp->vegas.cntRTT++;
-}
-
 /* Called to compute a smoothed rtt estimate. The data fed to this
  * routine either comes from timestamps, or from segments that were
  * known _not_ to have been retransmitted [see Karn/Partridge
@@ -606,13 +543,10 @@ static inline void vegas_rtt_calc(struct tcp_sock *tp, __u32 rtt)
  * To save cycles in the RFC 1323 implementation it was better to break
  * it up into three procedures. -- erics
  */
-static void tcp_rtt_estimator(struct tcp_sock *tp, __u32 mrtt)
+static void tcp_rtt_estimator(struct tcp_sock *tp, __u32 mrtt, u32 *usrtt)
 {
         long m = mrtt; /* RTT */
 
-        if (tcp_vegas_enabled(tp))
-                vegas_rtt_calc(tp, mrtt);
-
         /*      The following amusing code comes from Jacobson's
          *      article in SIGCOMM '88.  Note that rtt and mdev
          *      are scaled versions of rtt and mean deviation.
@@ -670,7 +604,8 @@ static void tcp_rtt_estimator(struct tcp_sock *tp, __u32 mrtt)
                 tp->rtt_seq = tp->snd_nxt;
         }
 
-        tcp_westwood_update_rtt(tp, tp->srtt >> 3);
+        if (tp->ca_ops->rtt_sample)
+                tp->ca_ops->rtt_sample(tp, *usrtt);
 }
 
 /* Calculate rto without backoff.  This is the second half of Van Jacobson's
@@ -1185,8 +1120,8 @@ void tcp_enter_frto(struct sock *sk)
             tp->snd_una == tp->high_seq ||
             (tp->ca_state == TCP_CA_Loss && !tp->retransmits)) {
                 tp->prior_ssthresh = tcp_current_ssthresh(tp);
-                if (!tcp_westwood_ssthresh(tp))
-                        tp->snd_ssthresh = tcp_recalc_ssthresh(tp);
+                tp->snd_ssthresh = tp->ca_ops->ssthresh(tp);
+                tcp_ca_event(tp, CA_EVENT_FRTO);
         }
 
         /* Have to clear retransmission markers here to keep the bookkeeping
@@ -1252,8 +1187,6 @@ static void tcp_enter_frto_loss(struct sock *sk)
         tcp_set_ca_state(tp, TCP_CA_Loss);
         tp->high_seq = tp->frto_highmark;
         TCP_ECN_queue_cwr(tp);
-
-        init_bictcp(tp);
 }
 
 void tcp_clear_retrans(struct tcp_sock *tp)
@@ -1283,7 +1216,8 @@ void tcp_enter_loss(struct sock *sk, int how)
         if (tp->ca_state <= TCP_CA_Disorder || tp->snd_una == tp->high_seq ||
             (tp->ca_state == TCP_CA_Loss && !tp->retransmits)) {
                 tp->prior_ssthresh = tcp_current_ssthresh(tp);
-                tp->snd_ssthresh = tcp_recalc_ssthresh(tp);
+                tp->snd_ssthresh = tp->ca_ops->ssthresh(tp);
+                tcp_ca_event(tp, CA_EVENT_LOSS);
         }
         tp->snd_cwnd       = 1;
         tp->snd_cwnd_cnt   = 0;
@@ -1596,28 +1530,14 @@ static inline void tcp_moderate_cwnd(struct tcp_sock *tp)
 }
 
 /* Decrease cwnd each second ack. */
-
 static void tcp_cwnd_down(struct tcp_sock *tp)
 {
         int decr = tp->snd_cwnd_cnt + 1;
-        __u32 limit;
-
-        /*
-         * TCP Westwood
-         * Here limit is evaluated as BWestimation*RTTmin (for obtaining it
-         * in packets we use mss_cache). If sysctl_tcp_westwood is off
-         * tcp_westwood_bw_rttmin() returns 0. In such case snd_ssthresh is
-         * still used as usual. It prevents other strange cases in which
-         * BWE*RTTmin could assume value 0. It should not happen but...
-         */
-
-        if (!(limit = tcp_westwood_bw_rttmin(tp)))
-                limit = tp->snd_ssthresh/2;
 
         tp->snd_cwnd_cnt = decr&1;
         decr >>= 1;
 
-        if (decr && tp->snd_cwnd > limit)
+        if (decr && tp->snd_cwnd > tp->ca_ops->min_cwnd(tp))
                 tp->snd_cwnd -= decr;
 
         tp->snd_cwnd = min(tp->snd_cwnd, tcp_packets_in_flight(tp)+1);
@@ -1654,8 +1574,8 @@ static void DBGUNDO(struct sock *sk, struct tcp_sock *tp, const char *msg)
 static void tcp_undo_cwr(struct tcp_sock *tp, int undo)
 {
         if (tp->prior_ssthresh) {
-                if (tcp_is_bic(tp))
-                        tp->snd_cwnd = max(tp->snd_cwnd, tp->bictcp.last_max_cwnd);
+                if (tp->ca_ops->undo_cwnd)
+                        tp->snd_cwnd = tp->ca_ops->undo_cwnd(tp);
                 else
                         tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh<<1);
 
@@ -1767,11 +1687,9 @@ static int tcp_try_undo_loss(struct sock *sk, struct tcp_sock *tp)
 
 static inline void tcp_complete_cwr(struct tcp_sock *tp)
 {
-        if (tcp_westwood_cwnd(tp)) 
-                tp->snd_ssthresh = tp->snd_cwnd;
-        else
-                tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
+        tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
         tp->snd_cwnd_stamp = tcp_time_stamp;
+        tcp_ca_event(tp, CA_EVENT_COMPLETE_CWR);
 }
 
 static void tcp_try_to_open(struct sock *sk, struct tcp_sock *tp, int flag)
@@ -1946,7 +1864,7 @@ tcp_fastretrans_alert(struct sock *sk, u32 prior_snd_una,
                 if (tp->ca_state < TCP_CA_CWR) {
                         if (!(flag&FLAG_ECE))
                                 tp->prior_ssthresh = tcp_current_ssthresh(tp);
-                        tp->snd_ssthresh = tcp_recalc_ssthresh(tp);
+                        tp->snd_ssthresh = tp->ca_ops->ssthresh(tp);
                         TCP_ECN_queue_cwr(tp);
                 }
 
@@ -1963,7 +1881,7 @@ tcp_fastretrans_alert(struct sock *sk, u32 prior_snd_una,
 /* Read draft-ietf-tcplw-high-performance before mucking
  * with this code. (Superceeds RFC1323)
  */
-static void tcp_ack_saw_tstamp(struct tcp_sock *tp, int flag)
+static void tcp_ack_saw_tstamp(struct tcp_sock *tp, u32 *usrtt, int flag)
 {
         __u32 seq_rtt;
 
@@ -1983,13 +1901,13 @@ static void tcp_ack_saw_tstamp(struct tcp_sock *tp, int flag)
          * in window is lost... Voila.                          --ANK (010210)
          */
         seq_rtt = tcp_time_stamp - tp->rx_opt.rcv_tsecr;
-        tcp_rtt_estimator(tp, seq_rtt);
+        tcp_rtt_estimator(tp, seq_rtt, usrtt);
         tcp_set_rto(tp);
         tp->backoff = 0;
         tcp_bound_rto(tp);
 }
 
-static void tcp_ack_no_tstamp(struct tcp_sock *tp, u32 seq_rtt, int flag)
+static void tcp_ack_no_tstamp(struct tcp_sock *tp, u32 seq_rtt, u32 *usrtt, int flag)
 {
         /* We don't have a timestamp. Can only use
          * packets that are not retransmitted to determine
@@ -2003,338 +1921,29 @@ static void tcp_ack_no_tstamp(struct tcp_sock *tp, u32 seq_rtt, int flag)
         if (flag & FLAG_RETRANS_DATA_ACKED)
                 return;
 
-        tcp_rtt_estimator(tp, seq_rtt);
+        tcp_rtt_estimator(tp, seq_rtt, usrtt);
         tcp_set_rto(tp);
         tp->backoff = 0;
         tcp_bound_rto(tp);
 }
 
 static inline void tcp_ack_update_rtt(struct tcp_sock *tp,
-                                      int flag, s32 seq_rtt)
+                                      int flag, s32 seq_rtt, u32 *usrtt)
 {
         /* Note that peer MAY send zero echo. In this case it is ignored. (rfc1323) */
         if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr)
-                tcp_ack_saw_tstamp(tp, flag);
+                tcp_ack_saw_tstamp(tp, usrtt, flag);
         else if (seq_rtt >= 0)
-                tcp_ack_no_tstamp(tp, seq_rtt, flag);
+                tcp_ack_no_tstamp(tp, seq_rtt, usrtt, flag);
 }
 
-/*
- * Compute congestion window to use.
- *
- * This is from the implementation of BICTCP in
- * Lison-Xu, Kahaled Harfoush, and Injog Rhee.
- *  "Binary Increase Congestion Control for Fast, Long Distance
- *  Networks" in InfoComm 2004
- * Available from:
- *  http://www.csc.ncsu.edu/faculty/rhee/export/bitcp.pdf
- *
- * Unless BIC is enabled and congestion window is large
- * this behaves the same as the original Reno.
- */
-static inline __u32 bictcp_cwnd(struct tcp_sock *tp)
-{
-        /* orignal Reno behaviour */
-        if (!tcp_is_bic(tp))
-                return tp->snd_cwnd;
-
-        if (tp->bictcp.last_cwnd == tp->snd_cwnd &&
-           (s32)(tcp_time_stamp - tp->bictcp.last_stamp) <= (HZ>>5))
-                return tp->bictcp.cnt;
-
-        tp->bictcp.last_cwnd = tp->snd_cwnd;
-        tp->bictcp.last_stamp = tcp_time_stamp;
-      
-        /* start off normal */
-        if (tp->snd_cwnd <= sysctl_tcp_bic_low_window)
-                tp->bictcp.cnt = tp->snd_cwnd;
-
-        /* binary increase */
-        else if (tp->snd_cwnd < tp->bictcp.last_max_cwnd) {
-                __u32   dist = (tp->bictcp.last_max_cwnd - tp->snd_cwnd)
-                        / BICTCP_B;
-
-                if (dist > BICTCP_MAX_INCREMENT)
-                        /* linear increase */
-                        tp->bictcp.cnt = tp->snd_cwnd / BICTCP_MAX_INCREMENT;
-                else if (dist <= 1U)
-                        /* binary search increase */
-                        tp->bictcp.cnt = tp->snd_cwnd * BICTCP_FUNC_OF_MIN_INCR
-                                / BICTCP_B;
-                else
-                        /* binary search increase */
-                        tp->bictcp.cnt = tp->snd_cwnd / dist;
-        } else {
-                /* slow start amd linear increase */
-                if (tp->snd_cwnd < tp->bictcp.last_max_cwnd + BICTCP_B)
-                        /* slow start */
-                        tp->bictcp.cnt = tp->snd_cwnd * BICTCP_FUNC_OF_MIN_INCR
-                                / BICTCP_B;
-                else if (tp->snd_cwnd < tp->bictcp.last_max_cwnd
-                                        + BICTCP_MAX_INCREMENT*(BICTCP_B-1))
-                        /* slow start */
-                        tp->bictcp.cnt = tp->snd_cwnd * (BICTCP_B-1)
-                                / (tp->snd_cwnd-tp->bictcp.last_max_cwnd);
-                else
-                        /* linear increase */
-                        tp->bictcp.cnt = tp->snd_cwnd / BICTCP_MAX_INCREMENT;
-        }
-        return tp->bictcp.cnt;
-}
-
-/* This is Jacobson's slow start and congestion avoidance. 
- * SIGCOMM '88, p. 328.
- */
-static inline void reno_cong_avoid(struct tcp_sock *tp)
+static inline void tcp_cong_avoid(struct tcp_sock *tp, u32 ack, u32 rtt,
+                                  u32 in_flight, int good)
 {
-        if (tp->snd_cwnd <= tp->snd_ssthresh) {
-                /* In "safe" area, increase. */
-                if (tp->snd_cwnd < tp->snd_cwnd_clamp)
-                        tp->snd_cwnd++;
-        } else {
-                /* In dangerous area, increase slowly.
-                 * In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd
-                 */
-                if (tp->snd_cwnd_cnt >= bictcp_cwnd(tp)) {
-                        if (tp->snd_cwnd < tp->snd_cwnd_clamp)
-                                tp->snd_cwnd++;
-                        tp->snd_cwnd_cnt=0;
-                } else
-                        tp->snd_cwnd_cnt++;
-        }
+        tp->ca_ops->cong_avoid(tp, ack, rtt, in_flight, good);
         tp->snd_cwnd_stamp = tcp_time_stamp;
 }
 
-/* This is based on the congestion detection/avoidance scheme described in
- *    Lawrence S. Brakmo and Larry L. Peterson.
- *    "TCP Vegas: End to end congestion avoidance on a global internet."
- *    IEEE Journal on Selected Areas in Communication, 13(8):1465--1480,
- *    October 1995. Available from:
- *      ftp://ftp.cs.arizona.edu/xkernel/Papers/jsac.ps
- *
- * See http://www.cs.arizona.edu/xkernel/ for their implementation.
- * The main aspects that distinguish this implementation from the
- * Arizona Vegas implementation are:
- *   o We do not change the loss detection or recovery mechanisms of
- *     Linux in any way. Linux already recovers from losses quite well,
- *     using fine-grained timers, NewReno, and FACK.
- *   o To avoid the performance penalty imposed by increasing cwnd
- *     only every-other RTT during slow start, we increase during
- *     every RTT during slow start, just like Reno.
- *   o Largely to allow continuous cwnd growth during slow start,
- *     we use the rate at which ACKs come back as the "actual"
- *     rate, rather than the rate at which data is sent.
- *   o To speed convergence to the right rate, we set the cwnd
- *     to achieve the right ("actual") rate when we exit slow start.
- *   o To filter out the noise caused by delayed ACKs, we use the
- *     minimum RTT sample observed during the last RTT to calculate
- *     the actual rate.
- *   o When the sender re-starts from idle, it waits until it has
- *     received ACKs for an entire flight of new data before making
- *     a cwnd adjustment decision. The original Vegas implementation
- *     assumed senders never went idle.
- */
-static void vegas_cong_avoid(struct tcp_sock *tp, u32 ack, u32 seq_rtt)
-{
-        /* The key players are v_beg_snd_una and v_beg_snd_nxt.
-         *
-         * These are so named because they represent the approximate values
-         * of snd_una and snd_nxt at the beginning of the current RTT. More
-         * precisely, they represent the amount of data sent during the RTT.
-         * At the end of the RTT, when we receive an ACK for v_beg_snd_nxt,
-         * we will calculate that (v_beg_snd_nxt - v_beg_snd_una) outstanding
-         * bytes of data have been ACKed during the course of the RTT, giving
-         * an "actual" rate of:
-         *
-         *     (v_beg_snd_nxt - v_beg_snd_una) / (rtt duration)
-         *
-         * Unfortunately, v_beg_snd_una is not exactly equal to snd_una,
-         * because delayed ACKs can cover more than one segment, so they
-         * don't line up nicely with the boundaries of RTTs.
-         *
-         * Another unfortunate fact of life is that delayed ACKs delay the
-         * advance of the left edge of our send window, so that the number
-         * of bytes we send in an RTT is often less than our cwnd will allow.
-         * So we keep track of our cwnd separately, in v_beg_snd_cwnd.
-         */
-
-        if (after(ack, tp->vegas.beg_snd_nxt)) {
-                /* Do the Vegas once-per-RTT cwnd adjustment. */
-                u32 old_wnd, old_snd_cwnd;
-
-                
-                /* Here old_wnd is essentially the window of data that was
-                 * sent during the previous RTT, and has all
-                 * been acknowledged in the course of the RTT that ended
-                 * with the ACK we just received. Likewise, old_snd_cwnd
-                 * is the cwnd during the previous RTT.
-                 */
-                old_wnd = (tp->vegas.beg_snd_nxt - tp->vegas.beg_snd_una) /
-                        tp->mss_cache_std;
-                old_snd_cwnd = tp->vegas.beg_snd_cwnd;
-
-                /* Save the extent of the current window so we can use this
-                 * at the end of the next RTT.
-                 */
-                tp->vegas.beg_snd_una  = tp->vegas.beg_snd_nxt;
-                tp->vegas.beg_snd_nxt  = tp->snd_nxt;
-                tp->vegas.beg_snd_cwnd = tp->snd_cwnd;
-
-                /* Take into account the current RTT sample too, to
-                 * decrease the impact of delayed acks. This double counts
-                 * this sample since we count it for the next window as well,
-                 * but that's not too awful, since we're taking the min,
-                 * rather than averaging.
-                 */
-                vegas_rtt_calc(tp, seq_rtt);
-
-                /* We do the Vegas calculations only if we got enough RTT
-                 * samples that we can be reasonably sure that we got
-                 * at least one RTT sample that wasn't from a delayed ACK.
-                 * If we only had 2 samples total,
-                 * then that means we're getting only 1 ACK per RTT, which
-                 * means they're almost certainly delayed ACKs.
-                 * If  we have 3 samples, we should be OK.
-                 */
-
-                if (tp->vegas.cntRTT <= 2) {
-                        /* We don't have enough RTT samples to do the Vegas
-                         * calculation, so we'll behave like Reno.
-                         */
-                        if (tp->snd_cwnd > tp->snd_ssthresh)
-                                tp->snd_cwnd++;
-                } else {
-                        u32 rtt, target_cwnd, diff;
-
-                        /* We have enough RTT samples, so, using the Vegas
-                         * algorithm, we determine if we should increase or
-                         * decrease cwnd, and by how much.
-                         */
-
-                        /* Pluck out the RTT we are using for the Vegas
-                         * calculations. This is the min RTT seen during the
-                         * last RTT. Taking the min filters out the effects
-                         * of delayed ACKs, at the cost of noticing congestion
-                         * a bit later.
-                         */
-                        rtt = tp->vegas.minRTT;
-
-                        /* Calculate the cwnd we should have, if we weren't
-                         * going too fast.
-                         *
-                         * This is:
-                         *     (actual rate in segments) * baseRTT
-                         * We keep it as a fixed point number with
-                         * V_PARAM_SHIFT bits to the right of the binary point.
-                         */
-                        target_cwnd = ((old_wnd * tp->vegas.baseRTT)
-                                       << V_PARAM_SHIFT) / rtt;
-
-                        /* Calculate the difference between the window we had,
-                         * and the window we would like to have. This quantity
-                         * is the "Diff" from the Arizona Vegas papers.
-                         *
-                         * Again, this is a fixed point number with
-                         * V_PARAM_SHIFT bits to the right of the binary
-                         * point.
-                         */
-                        diff = (old_wnd << V_PARAM_SHIFT) - target_cwnd;
-
-                        if (tp->snd_cwnd < tp->snd_ssthresh) {
-                                /* Slow start.  */
-                                if (diff > sysctl_tcp_vegas_gamma) {
-                                        /* Going too fast. Time to slow down
-                                         * and switch to congestion avoidance.
-                                         */
-                                        tp->snd_ssthresh = 2;
-
-                                        /* Set cwnd to match the actual rate
-                                         * exactly:
-                                         *   cwnd = (actual rate) * baseRTT
-                                         * Then we add 1 because the integer
-                                         * truncation robs us of full link
-                                         * utilization.
-                                         */
-                                        tp->snd_cwnd = min(tp->snd_cwnd,
-                                                           (target_cwnd >>
-                                                            V_PARAM_SHIFT)+1);
-
-                                }
-                        } else {
-                                /* Congestion avoidance. */
-                                u32 next_snd_cwnd;
-
-                                /* Figure out where we would like cwnd
-                                 * to be.
-                                 */
-                                if (diff > sysctl_tcp_vegas_beta) {
-                                        /* The old window was too fast, so
-                                         * we slow down.
-                                         */
-                                        next_snd_cwnd = old_snd_cwnd - 1;
-                                } else if (diff < sysctl_tcp_vegas_alpha) {
-                                        /* We don't have enough extra packets
-                                         * in the network, so speed up.
-                                         */
-                                        next_snd_cwnd = old_snd_cwnd + 1;
-                                } else {
-                                        /* Sending just as fast as we
-                                         * should be.
-                                         */
-                                        next_snd_cwnd = old_snd_cwnd;
-                                }
-
-                                /* Adjust cwnd upward or downward, toward the
-                                 * desired value.
-                                 */
-                                if (next_snd_cwnd > tp->snd_cwnd)
-                                        tp->snd_cwnd++;
-                                else if (next_snd_cwnd < tp->snd_cwnd)
-                                        tp->snd_cwnd--;
-                        }
-                }
-
-                /* Wipe the slate clean for the next RTT. */
-                tp->vegas.cntRTT = 0;
-                tp->vegas.minRTT = 0x7fffffff;
-        }
-
-        /* The following code is executed for every ack we receive,
-         * except for conditions checked in should_advance_cwnd()
-         * before the call to tcp_cong_avoid(). Mainly this means that
-         * we only execute this code if the ack actually acked some
-         * data.
-         */
-
-        /* If we are in slow start, increase our cwnd in response to this ACK.
-         * (If we are not in slow start then we are in congestion avoidance,
-         * and adjust our congestion window only once per RTT. See the code
-         * above.)
-         */
-        if (tp->snd_cwnd <= tp->snd_ssthresh) 
-                tp->snd_cwnd++;
-
-        /* to keep cwnd from growing without bound */
-        tp->snd_cwnd = min_t(u32, tp->snd_cwnd, tp->snd_cwnd_clamp);
-
-        /* Make sure that we are never so timid as to reduce our cwnd below
-         * 2 MSS.
-         *
-         * Going below 2 MSS would risk huge delayed ACKs from our receiver.
-         */
-        tp->snd_cwnd = max(tp->snd_cwnd, 2U);
-
-        tp->snd_cwnd_stamp = tcp_time_stamp;
-}
-
-static inline void tcp_cong_avoid(struct tcp_sock *tp, u32 ack, u32 seq_rtt)
-{
-        if (tcp_vegas_enabled(tp))
-                vegas_cong_avoid(tp, ack, seq_rtt);
-        else
-                reno_cong_avoid(tp);
-}
-
 /* Restart timer after forward progress on connection.
  * RFC2988 recommends to restart timer to now+rto.
  */
@@ -2415,13 +2024,18 @@ static int tcp_tso_acked(struct sock *sk, struct sk_buff *skb,
 
 
 /* Remove acknowledged frames from the retransmission queue. */
-static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
+static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p, s32 *seq_usrtt)
 {
         struct tcp_sock *tp = tcp_sk(sk);
         struct sk_buff *skb;
         __u32 now = tcp_time_stamp;
         int acked = 0;
         __s32 seq_rtt = -1;
+        struct timeval usnow;
+        u32 pkts_acked = 0;
+
+        if (seq_usrtt)
+                do_gettimeofday(&usnow);
 
         while ((skb = skb_peek(&sk->sk_write_queue)) &&
                skb != sk->sk_send_head) {
@@ -2448,6 +2062,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
                  */
                 if (!(scb->flags & TCPCB_FLAG_SYN)) {
                         acked |= FLAG_DATA_ACKED;
+                        ++pkts_acked;
                 } else {
                         acked |= FLAG_SYN_ACKED;
                         tp->retrans_stamp = 0;
@@ -2461,6 +2076,10 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
                                 seq_rtt = -1;
                         } else if (seq_rtt < 0)
                                 seq_rtt = now - scb->when;
+                        if (seq_usrtt)
+                                *seq_usrtt = (usnow.tv_sec - skb->stamp.tv_sec) * 1000000
+                                        + (usnow.tv_usec - skb->stamp.tv_usec);
+
                         if (sacked & TCPCB_SACKED_ACKED)
                                 tp->sacked_out -= tcp_skb_pcount(skb);
                         if (sacked & TCPCB_LOST)
@@ -2479,8 +2098,11 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
         }
 
         if (acked&FLAG_ACKED) {
-                tcp_ack_update_rtt(tp, acked, seq_rtt);
+                tcp_ack_update_rtt(tp, acked, seq_rtt, seq_usrtt);
                 tcp_ack_packets_out(sk, tp);
+
+                if (tp->ca_ops->pkts_acked)
+                        tp->ca_ops->pkts_acked(tp, pkts_acked);
         }
 
 #if FASTRETRANS_DEBUG > 0
@@ -2624,257 +2246,6 @@ static void tcp_process_frto(struct sock *sk, u32 prior_snd_una)
         tp->frto_counter = (tp->frto_counter + 1) % 3;
 }
 
-/*
- * TCP Westwood+
- */
-
-/*
- * @init_westwood
- * This function initializes fields used in TCP Westwood+. We can't
- * get no information about RTTmin at this time so we simply set it to
- * TCP_WESTWOOD_INIT_RTT. This value was chosen to be too conservative
- * since in this way we're sure it will be updated in a consistent
- * way as soon as possible. It will reasonably happen within the first
- * RTT period of the connection lifetime.
- */
-
-static void init_westwood(struct sock *sk)
-{
-        struct tcp_sock *tp = tcp_sk(sk);
-
-        tp->westwood.bw_ns_est = 0;
-        tp->westwood.bw_est = 0;
-        tp->westwood.accounted = 0;
-        tp->westwood.cumul_ack = 0;
-        tp->westwood.rtt_win_sx = tcp_time_stamp;
-        tp->westwood.rtt = TCP_WESTWOOD_INIT_RTT;
-        tp->westwood.rtt_min = TCP_WESTWOOD_INIT_RTT;
-        tp->westwood.snd_una = tp->snd_una;
-}
-
-/*
- * @westwood_do_filter
- * Low-pass filter. Implemented using constant coeffients.
- */
-
-static inline __u32 westwood_do_filter(__u32 a, __u32 b)
-{
-        return (((7 * a) + b) >> 3);
-}
-
-static void westwood_filter(struct sock *sk, __u32 delta)
-{
-        struct tcp_sock *tp = tcp_sk(sk);
-
-        tp->westwood.bw_ns_est =
-                westwood_do_filter(tp->westwood.bw_ns_est, 
-                                   tp->westwood.bk / delta);
-        tp->westwood.bw_est =
-                westwood_do_filter(tp->westwood.bw_est,
-                                   tp->westwood.bw_ns_est);
-}
-
-/* 
- * @westwood_update_rttmin
- * It is used to update RTTmin. In this case we MUST NOT use
- * WESTWOOD_RTT_MIN minimum bound since we could be on a LAN!
- */
-
-static inline __u32 westwood_update_rttmin(const struct sock *sk)
-{
-        const struct tcp_sock *tp = tcp_sk(sk);
-        __u32 rttmin = tp->westwood.rtt_min;
-
-        if (tp->westwood.rtt != 0 &&
-            (tp->westwood.rtt < tp->westwood.rtt_min || !rttmin))
-                rttmin = tp->westwood.rtt;
-
-        return rttmin;
-}
-
-/*
- * @westwood_acked
- * Evaluate increases for dk. 
- */
-
-static inline __u32 westwood_acked(const struct sock *sk)
-{
-        const struct tcp_sock *tp = tcp_sk(sk);
-
-        return tp->snd_una - tp->westwood.snd_una;
-}
-
-/*
- * @westwood_new_window
- * It evaluates if we are receiving data inside the same RTT window as
- * when we started.
- * Return value:
- * It returns 0 if we are still evaluating samples in the same RTT
- * window, 1 if the sample has to be considered in the next window.
- */
-
-static int westwood_new_window(const struct sock *sk)
-{
-        const struct tcp_sock *tp = tcp_sk(sk);
-        __u32 left_bound;
-        __u32 rtt;
-        int ret = 0;
-
-        left_bound = tp->westwood.rtt_win_sx;
-        rtt = max(tp->westwood.rtt, (u32) TCP_WESTWOOD_RTT_MIN);
-
-        /*
-         * A RTT-window has passed. Be careful since if RTT is less than
-         * 50ms we don't filter but we continue 'building the sample'.
-         * This minimum limit was choosen since an estimation on small
-         * time intervals is better to avoid...
-         * Obvioulsy on a LAN we reasonably will always have
-         * right_bound = left_bound + WESTWOOD_RTT_MIN
-         */
-
-        if ((left_bound + rtt) < tcp_time_stamp)
-                ret = 1;
-
-        return ret;
-}
-
-/*
- * @westwood_update_window
- * It updates RTT evaluation window if it is the right moment to do
- * it. If so it calls filter for evaluating bandwidth. 
- */
-
-static void __westwood_update_window(struct sock *sk, __u32 now)
-{
-        struct tcp_sock *tp = tcp_sk(sk);
-        __u32 delta = now - tp->westwood.rtt_win_sx;
-
-        if (delta) {
-                if (tp->westwood.rtt)
-                        westwood_filter(sk, delta);
-
-                tp->westwood.bk = 0;
-                tp->westwood.rtt_win_sx = tcp_time_stamp;
-        }
-}
-
-
-static void westwood_update_window(struct sock *sk, __u32 now)
-{
-        if (westwood_new_window(sk)) 
-                __westwood_update_window(sk, now);
-}
-
-/*
- * @__tcp_westwood_fast_bw
- * It is called when we are in fast path. In particular it is called when
- * header prediction is successfull. In such case infact update is
- * straight forward and doesn't need any particular care.
- */
-
-static void __tcp_westwood_fast_bw(struct sock *sk, struct sk_buff *skb)
-{
-        struct tcp_sock *tp = tcp_sk(sk);
-
-        westwood_update_window(sk, tcp_time_stamp);
-
-        tp->westwood.bk += westwood_acked(sk);
-        tp->westwood.snd_una = tp->snd_una;
-        tp->westwood.rtt_min = westwood_update_rttmin(sk);
-}
-
-static inline void tcp_westwood_fast_bw(struct sock *sk, struct sk_buff *skb)
-{
-        if (tcp_is_westwood(tcp_sk(sk)))
-                __tcp_westwood_fast_bw(sk, skb);
-}
-
-
-/*
- * @westwood_dupack_update
- * It updates accounted and cumul_ack when receiving a dupack.
- */
-
-static void westwood_dupack_update(struct sock *sk)
-{
-        struct tcp_sock *tp = tcp_sk(sk);
-
-        tp->westwood.accounted += tp->mss_cache_std;
-        tp->westwood.cumul_ack = tp->mss_cache_std;
-}
-
-static inline int westwood_may_change_cumul(struct tcp_sock *tp)
-{
-        return (tp->westwood.cumul_ack > tp->mss_cache_std);
-}
-
-static inline void westwood_partial_update(struct tcp_sock *tp)
-{
-        tp->westwood.accounted -= tp->westwood.cumul_ack;
-        tp->westwood.cumul_ack = tp->mss_cache_std;
-}
-
-static inline void westwood_complete_update(struct tcp_sock *tp)
-{
-        tp->westwood.cumul_ack -= tp->westwood.accounted;
-        tp->westwood.accounted = 0;
-}
-
-/*
- * @westwood_acked_count
- * This function evaluates cumul_ack for evaluating dk in case of
- * delayed or partial acks.
- */
-
-static inline __u32 westwood_acked_count(struct sock *sk)
-{
-        struct tcp_sock *tp = tcp_sk(sk);
-
-        tp->westwood.cumul_ack = westwood_acked(sk);
-
-        /* If cumul_ack is 0 this is a dupack since it's not moving
-         * tp->snd_una.
-         */
-        if (!(tp->westwood.cumul_ack))
-                westwood_dupack_update(sk);
-
-        if (westwood_may_change_cumul(tp)) {
-                /* Partial or delayed ack */
-                if (tp->westwood.accounted >= tp->westwood.cumul_ack)
-                        westwood_partial_update(tp);
-                else
-                        westwood_complete_update(tp);
-        }
-
-        tp->westwood.snd_una = tp->snd_una;
-
-        return tp->westwood.cumul_ack;
-}
-
-
-/*
- * @__tcp_westwood_slow_bw
- * It is called when something is going wrong..even if there could
- * be no problems! Infact a simple delayed packet may trigger a
- * dupack. But we need to be careful in such case.
- */
-
-static void __tcp_westwood_slow_bw(struct sock *sk, struct sk_buff *skb)
-{
-        struct tcp_sock *tp = tcp_sk(sk);
-
-        westwood_update_window(sk, tcp_time_stamp);
-
-        tp->westwood.bk += westwood_acked_count(sk);
-        tp->westwood.rtt_min = westwood_update_rttmin(sk);
-}
-
-static inline void tcp_westwood_slow_bw(struct sock *sk, struct sk_buff *skb)
-{
-        if (tcp_is_westwood(tcp_sk(sk)))
-                __tcp_westwood_slow_bw(sk, skb);
-}
-
 /* This routine deals with incoming acks, but not outgoing ones. */
 static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
 {
@@ -2884,6 +2255,7 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
         u32 ack = TCP_SKB_CB(skb)->ack_seq;
         u32 prior_in_flight;
         s32 seq_rtt;
+        s32 seq_usrtt = 0;
         int prior_packets;
 
         /* If the ack is newer than sent or older than previous acks
@@ -2902,9 +2274,10 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
                  */
                 tcp_update_wl(tp, ack, ack_seq);
                 tp->snd_una = ack;
-                tcp_westwood_fast_bw(sk, skb);
                 flag |= FLAG_WIN_UPDATE;
 
+                tcp_ca_event(tp, CA_EVENT_FAST_ACK);
+
                 NET_INC_STATS_BH(LINUX_MIB_TCPHPACKS);
         } else {
                 if (ack_seq != TCP_SKB_CB(skb)->end_seq)
@@ -2920,7 +2293,7 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
                 if (TCP_ECN_rcv_ecn_echo(tp, skb->h.th))
                         flag |= FLAG_ECE;
 
-                tcp_westwood_slow_bw(sk,skb);
+                tcp_ca_event(tp, CA_EVENT_SLOW_ACK);
         }
 
         /* We passed data and got it acked, remove any soft error
@@ -2935,22 +2308,20 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
         prior_in_flight = tcp_packets_in_flight(tp);
 
         /* See if we can take anything off of the retransmit queue. */
-        flag |= tcp_clean_rtx_queue(sk, &seq_rtt);
+        flag |= tcp_clean_rtx_queue(sk, &seq_rtt,
+                                    tp->ca_ops->rtt_sample ? &seq_usrtt : NULL);
 
         if (tp->frto_counter)
                 tcp_process_frto(sk, prior_snd_una);
 
         if (tcp_ack_is_dubious(tp, flag)) {
                 /* Advanve CWND, if state allows this. */
-                if ((flag & FLAG_DATA_ACKED) &&
-                    (tcp_vegas_enabled(tp) || prior_in_flight >= tp->snd_cwnd) &&
-                    tcp_may_raise_cwnd(tp, flag))
-                        tcp_cong_avoid(tp, ack, seq_rtt);
+                if ((flag & FLAG_DATA_ACKED) && tcp_may_raise_cwnd(tp, flag))
+                        tcp_cong_avoid(tp, ack,  seq_rtt, prior_in_flight, 0);
                 tcp_fastretrans_alert(sk, prior_snd_una, prior_packets, flag);
         } else {
-                if ((flag & FLAG_DATA_ACKED) && 
-                    (tcp_vegas_enabled(tp) || prior_in_flight >= tp->snd_cwnd))
-                        tcp_cong_avoid(tp, ack, seq_rtt);
+                if ((flag & FLAG_DATA_ACKED))
+                        tcp_cong_avoid(tp, ack, seq_rtt, prior_in_flight, 1);
         }
 
         if ((flag & FLAG_FORWARD_PROGRESS) || !(flag&FLAG_NOT_DUP))
@@ -4552,6 +3923,8 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
 
                 tcp_init_metrics(sk);
 
+                tcp_init_congestion_control(tp);
+
                 /* Prevent spurious tcp_cwnd_restart() on first data
                  * packet.
                  */
@@ -4708,9 +4081,6 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                         if(tp->af_specific->conn_request(sk, skb) < 0)
                                 return 1;
 
-                        init_westwood(sk);
-                        init_bictcp(tp);
-
                         /* Now we have several options: In theory there is 
                          * nothing else in the frame. KA9Q has an option to 
                          * send data with the syn, BSD accepts data with the
@@ -4732,9 +4102,6 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                 goto discard;
 
         case TCP_SYN_SENT:
-                init_westwood(sk);
-                init_bictcp(tp);
-
                 queued = tcp_rcv_synsent_state_process(sk, skb, th, len);
                 if (queued >= 0)
                         return queued;
@@ -4816,7 +4183,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                                  */
                                 if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr &&
                                     !tp->srtt)
-                                        tcp_ack_saw_tstamp(tp, 0);
+                                        tcp_ack_saw_tstamp(tp, 0, 0);
 
                                 if (tp->rx_opt.tstamp_ok)
                                         tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;
@@ -4828,6 +4195,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 
                                 tcp_init_metrics(sk);
 
+                                tcp_init_congestion_control(tp);
+
                                 /* Prevent spurious tcp_cwnd_restart() on
                                  * first data packet.
                                  */
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index dad98e4a5043..ebf112347a97 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -36,7 +36,7 @@
  *                                      ACK bit.
  *              Andi Kleen :            Implemented fast path mtu discovery.
  *                                      Fixed many serious bugs in the
- *                                      open_request handling and moved
+ *                                      request_sock handling and moved
  *                                      most of it into the af independent code.
  *                                      Added tail drop and some other bugfixes.
  *                                      Added new listen sematics.
@@ -869,21 +869,23 @@ static __inline__ u32 tcp_v4_synq_hash(u32 raddr, u16 rport, u32 rnd)
         return (jhash_2words(raddr, (u32) rport, rnd) & (TCP_SYNQ_HSIZE - 1));
 }
 
-static struct open_request *tcp_v4_search_req(struct tcp_sock *tp,
-                                              struct open_request ***prevp,
+static struct request_sock *tcp_v4_search_req(struct tcp_sock *tp,
+                                              struct request_sock ***prevp,
                                               __u16 rport,
                                               __u32 raddr, __u32 laddr)
 {
-        struct tcp_listen_opt *lopt = tp->listen_opt;
-        struct open_request *req, **prev;
+        struct listen_sock *lopt = tp->accept_queue.listen_opt;
+        struct request_sock *req, **prev;
 
         for (prev = &lopt->syn_table[tcp_v4_synq_hash(raddr, rport, lopt->hash_rnd)];
              (req = *prev) != NULL;
              prev = &req->dl_next) {
-                if (req->rmt_port == rport &&
-                    req->af.v4_req.rmt_addr == raddr &&
-                    req->af.v4_req.loc_addr == laddr &&
-                    TCP_INET_FAMILY(req->class->family)) {
+                const struct inet_request_sock *ireq = inet_rsk(req);
+
+                if (ireq->rmt_port == rport &&
+                    ireq->rmt_addr == raddr &&
+                    ireq->loc_addr == laddr &&
+                    TCP_INET_FAMILY(req->rsk_ops->family)) {
                         BUG_TRAP(!req->sk);
                         *prevp = prev;
                         break;
@@ -893,21 +895,13 @@ static struct open_request *tcp_v4_search_req(struct tcp_sock *tp,
         return req;
 }
 
-static void tcp_v4_synq_add(struct sock *sk, struct open_request *req)
+static void tcp_v4_synq_add(struct sock *sk, struct request_sock *req)
 {
         struct tcp_sock *tp = tcp_sk(sk);
-        struct tcp_listen_opt *lopt = tp->listen_opt;
-        u32 h = tcp_v4_synq_hash(req->af.v4_req.rmt_addr, req->rmt_port, lopt->hash_rnd);
-
-        req->expires = jiffies + TCP_TIMEOUT_INIT;
-        req->retrans = 0;
-        req->sk = NULL;
-        req->dl_next = lopt->syn_table[h];
-
-        write_lock(&tp->syn_wait_lock);
-        lopt->syn_table[h] = req;
-        write_unlock(&tp->syn_wait_lock);
+        struct listen_sock *lopt = tp->accept_queue.listen_opt;
+        u32 h = tcp_v4_synq_hash(inet_rsk(req)->rmt_addr, inet_rsk(req)->rmt_port, lopt->hash_rnd);
 
+        reqsk_queue_hash_req(&tp->accept_queue, h, req, TCP_TIMEOUT_INIT);
         tcp_synq_added(sk);
 }
 
@@ -1050,7 +1044,7 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
         }
 
         switch (sk->sk_state) {
-                struct open_request *req, **prev;
+                struct request_sock *req, **prev;
         case TCP_LISTEN:
                 if (sock_owned_by_user(sk))
                         goto out;
@@ -1065,7 +1059,7 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
                  */
                 BUG_TRAP(!req->sk);
 
-                if (seq != req->snt_isn) {
+                if (seq != tcp_rsk(req)->snt_isn) {
                         NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
                         goto out;
                 }
@@ -1254,28 +1248,29 @@ static void tcp_v4_timewait_ack(struct sock *sk, struct sk_buff *skb)
         tcp_tw_put(tw);
 }
 
-static void tcp_v4_or_send_ack(struct sk_buff *skb, struct open_request *req)
+static void tcp_v4_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req)
 {
-        tcp_v4_send_ack(skb, req->snt_isn + 1, req->rcv_isn + 1, req->rcv_wnd,
+        tcp_v4_send_ack(skb, tcp_rsk(req)->snt_isn + 1, tcp_rsk(req)->rcv_isn + 1, req->rcv_wnd,
                         req->ts_recent);
 }
 
 static struct dst_entry* tcp_v4_route_req(struct sock *sk,
-                                          struct open_request *req)
+                                          struct request_sock *req)
 {
         struct rtable *rt;
-        struct ip_options *opt = req->af.v4_req.opt;
+        const struct inet_request_sock *ireq = inet_rsk(req);
+        struct ip_options *opt = inet_rsk(req)->opt;
         struct flowi fl = { .oif = sk->sk_bound_dev_if,
                             .nl_u = { .ip4_u =
                                       { .daddr = ((opt && opt->srr) ?
                                                   opt->faddr :
-                                                  req->af.v4_req.rmt_addr),
-                                        .saddr = req->af.v4_req.loc_addr,
+                                                  ireq->rmt_addr),
+                                        .saddr = ireq->loc_addr,
                                         .tos = RT_CONN_FLAGS(sk) } },
                             .proto = IPPROTO_TCP,
                             .uli_u = { .ports =
                                        { .sport = inet_sk(sk)->sport,
-                                         .dport = req->rmt_port } } };
+                                         .dport = ireq->rmt_port } } };
 
         if (ip_route_output_flow(&rt, &fl, sk, 0)) {
                 IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
@@ -1291,12 +1286,13 @@ static struct dst_entry* tcp_v4_route_req(struct sock *sk,
 
 /*
  *      Send a SYN-ACK after having received an ACK.
- *      This still operates on a open_request only, not on a big
+ *      This still operates on a request_sock only, not on a big
  *      socket.
  */
-static int tcp_v4_send_synack(struct sock *sk, struct open_request *req,
+static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
                               struct dst_entry *dst)
 {
+        const struct inet_request_sock *ireq = inet_rsk(req);
         int err = -1;
         struct sk_buff * skb;
 
@@ -1310,14 +1306,14 @@ static int tcp_v4_send_synack(struct sock *sk, struct open_request *req,
                 struct tcphdr *th = skb->h.th;
 
                 th->check = tcp_v4_check(th, skb->len,
-                                         req->af.v4_req.loc_addr,
-                                         req->af.v4_req.rmt_addr,
+                                         ireq->loc_addr,
+                                         ireq->rmt_addr,
                                          csum_partial((char *)th, skb->len,
                                                       skb->csum));
 
-                err = ip_build_and_send_pkt(skb, sk, req->af.v4_req.loc_addr,
-                                            req->af.v4_req.rmt_addr,
-                                            req->af.v4_req.opt);
+                err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr,
+                                            ireq->rmt_addr,
+                                            ireq->opt);
                 if (err == NET_XMIT_CN)
                         err = 0;
         }
@@ -1328,12 +1324,12 @@ out:
 }
 
 /*
- *      IPv4 open_request destructor.
+ *      IPv4 request_sock destructor.
  */
-static void tcp_v4_or_free(struct open_request *req)
+static void tcp_v4_reqsk_destructor(struct request_sock *req)
 {
-        if (req->af.v4_req.opt)
-                kfree(req->af.v4_req.opt);
+        if (inet_rsk(req)->opt)
+                kfree(inet_rsk(req)->opt);
 }
 
 static inline void syn_flood_warning(struct sk_buff *skb)
@@ -1349,7 +1345,7 @@ static inline void syn_flood_warning(struct sk_buff *skb)
 }
 
 /*
- * Save and compile IPv4 options into the open_request if needed.
+ * Save and compile IPv4 options into the request_sock if needed.
  */
 static inline struct ip_options *tcp_v4_save_options(struct sock *sk,
                                                      struct sk_buff *skb)
@@ -1370,33 +1366,20 @@ static inline struct ip_options *tcp_v4_save_options(struct sock *sk,
         return dopt;
 }
 
-/*
- * Maximum number of SYN_RECV sockets in queue per LISTEN socket.
- * One SYN_RECV socket costs about 80bytes on a 32bit machine.
- * It would be better to replace it with a global counter for all sockets
- * but then some measure against one socket starving all other sockets
- * would be needed.
- *
- * It was 128 by default. Experiments with real servers show, that
- * it is absolutely not enough even at 100conn/sec. 256 cures most
- * of problems. This value is adjusted to 128 for very small machines
- * (<=32Mb of memory) and to 1024 on normal or better ones (>=256Mb).
- * Further increasing requires to change hash table size.
- */
-int sysctl_max_syn_backlog = 256;
-
-struct or_calltable or_ipv4 = {
+struct request_sock_ops tcp_request_sock_ops = {
         .family         =       PF_INET,
+        .obj_size       =       sizeof(struct tcp_request_sock),
         .rtx_syn_ack    =       tcp_v4_send_synack,
-        .send_ack       =       tcp_v4_or_send_ack,
-        .destructor     =       tcp_v4_or_free,
+        .send_ack       =       tcp_v4_reqsk_send_ack,
+        .destructor     =       tcp_v4_reqsk_destructor,
         .send_reset     =       tcp_v4_send_reset,
 };
 
 int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 {
+        struct inet_request_sock *ireq;
         struct tcp_options_received tmp_opt;
-        struct open_request *req;
+        struct request_sock *req;
         __u32 saddr = skb->nh.iph->saddr;
         __u32 daddr = skb->nh.iph->daddr;
         __u32 isn = TCP_SKB_CB(skb)->when;
@@ -1433,7 +1416,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
         if (sk_acceptq_is_full(sk) && tcp_synq_young(sk) > 1)
                 goto drop;
 
-        req = tcp_openreq_alloc();
+        req = reqsk_alloc(&tcp_request_sock_ops);
         if (!req)
                 goto drop;
 
@@ -1461,10 +1444,10 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 
         tcp_openreq_init(req, &tmp_opt, skb);
 
-        req->af.v4_req.loc_addr = daddr;
-        req->af.v4_req.rmt_addr = saddr;
-        req->af.v4_req.opt = tcp_v4_save_options(sk, skb);
-        req->class = &or_ipv4;
+        ireq = inet_rsk(req);
+        ireq->loc_addr = daddr;
+        ireq->rmt_addr = saddr;
+        ireq->opt = tcp_v4_save_options(sk, skb);
         if (!want_cookie)
                 TCP_ECN_create_request(req, skb->h.th);
 
@@ -1523,20 +1506,20 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 
                 isn = tcp_v4_init_sequence(sk, skb);
         }
-        req->snt_isn = isn;
+        tcp_rsk(req)->snt_isn = isn;
 
         if (tcp_v4_send_synack(sk, req, dst))
                 goto drop_and_free;
 
         if (want_cookie) {
-                tcp_openreq_free(req);
+                reqsk_free(req);
         } else {
                 tcp_v4_synq_add(sk, req);
         }
         return 0;
 
 drop_and_free:
-        tcp_openreq_free(req);
+        reqsk_free(req);
 drop:
         TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
         return 0;
@@ -1548,9 +1531,10 @@ drop:
  * now create the new socket.
  */
 struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
-                                  struct open_request *req,
+                                  struct request_sock *req,
                                   struct dst_entry *dst)
 {
+        struct inet_request_sock *ireq;
         struct inet_sock *newinet;
         struct tcp_sock *newtp;
         struct sock *newsk;
@@ -1570,11 +1554,12 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
         newtp                 = tcp_sk(newsk);
         newinet               = inet_sk(newsk);
-        newinet->daddr        = req->af.v4_req.rmt_addr;
-        newinet->rcv_saddr    = req->af.v4_req.loc_addr;
-        newinet->saddr        = req->af.v4_req.loc_addr;
-        newinet->opt          = req->af.v4_req.opt;
-        req->af.v4_req.opt    = NULL;
+        ireq                  = inet_rsk(req);
+        newinet->daddr        = ireq->rmt_addr;
+        newinet->rcv_saddr    = ireq->loc_addr;
+        newinet->saddr        = ireq->loc_addr;
+        newinet->opt          = ireq->opt;
+        ireq->opt             = NULL;
         newinet->mc_index     = tcp_v4_iif(skb);
         newinet->mc_ttl       = skb->nh.iph->ttl;
         newtp->ext_header_len = 0;
@@ -1605,9 +1590,9 @@ static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
         struct iphdr *iph = skb->nh.iph;
         struct tcp_sock *tp = tcp_sk(sk);
         struct sock *nsk;
-        struct open_request **prev;
+        struct request_sock **prev;
         /* Find possible connection requests. */
-        struct open_request *req = tcp_v4_search_req(tp, &prev, th->source,
+        struct request_sock *req = tcp_v4_search_req(tp, &prev, th->source,
                                                      iph->saddr, iph->daddr);
         if (req)
                 return tcp_check_req(sk, skb, req, prev);
@@ -2063,6 +2048,7 @@ static int tcp_v4_init_sock(struct sock *sk)
         tp->mss_cache_std = tp->mss_cache = 536;
 
         tp->reordering = sysctl_tcp_reordering;
+        tp->ca_ops = &tcp_init_congestion_ops;
 
         sk->sk_state = TCP_CLOSE;
 
@@ -2085,6 +2071,8 @@ int tcp_v4_destroy_sock(struct sock *sk)
 
         tcp_clear_xmit_timers(sk);
 
+        tcp_cleanup_congestion_control(tp);
+
         /* Cleanup up the write buffer. */
         sk_stream_writequeue_purge(sk);
 
@@ -2144,13 +2132,13 @@ static void *listening_get_next(struct seq_file *seq, void *cur)
         ++st->num;
 
         if (st->state == TCP_SEQ_STATE_OPENREQ) {
-                struct open_request *req = cur;
+                struct request_sock *req = cur;
 
                 tp = tcp_sk(st->syn_wait_sk);
                 req = req->dl_next;
                 while (1) {
                         while (req) {
-                                if (req->class->family == st->family) {
+                                if (req->rsk_ops->family == st->family) {
                                         cur = req;
                                         goto out;
                                 }
@@ -2159,17 +2147,17 @@ static void *listening_get_next(struct seq_file *seq, void *cur)
                         if (++st->sbucket >= TCP_SYNQ_HSIZE)
                                 break;
 get_req:
-                        req = tp->listen_opt->syn_table[st->sbucket];
+                        req = tp->accept_queue.listen_opt->syn_table[st->sbucket];
                 }
                 sk        = sk_next(st->syn_wait_sk);
                 st->state = TCP_SEQ_STATE_LISTENING;
-                read_unlock_bh(&tp->syn_wait_lock);
+                read_unlock_bh(&tp->accept_queue.syn_wait_lock);
         } else {
                 tp = tcp_sk(sk);
-                read_lock_bh(&tp->syn_wait_lock);
-                if (tp->listen_opt && tp->listen_opt->qlen)
+                read_lock_bh(&tp->accept_queue.syn_wait_lock);
+                if (reqsk_queue_len(&tp->accept_queue))
                         goto start_req;
-                read_unlock_bh(&tp->syn_wait_lock);
+                read_unlock_bh(&tp->accept_queue.syn_wait_lock);
                 sk = sk_next(sk);
         }
 get_sk:
@@ -2179,8 +2167,8 @@ get_sk:
                         goto out;
                 }
                 tp = tcp_sk(sk);
-                read_lock_bh(&tp->syn_wait_lock);
-                if (tp->listen_opt && tp->listen_opt->qlen) {
+                read_lock_bh(&tp->accept_queue.syn_wait_lock);
+                if (reqsk_queue_len(&tp->accept_queue)) {
 start_req:
                         st->uid         = sock_i_uid(sk);
                         st->syn_wait_sk = sk;
@@ -2188,7 +2176,7 @@ start_req:
                         st->sbucket     = 0;
                         goto get_req;
                 }
-                read_unlock_bh(&tp->syn_wait_lock);
+                read_unlock_bh(&tp->accept_queue.syn_wait_lock);
         }
         if (++st->bucket < TCP_LHTABLE_SIZE) {
                 sk = sk_head(&tcp_listening_hash[st->bucket]);
@@ -2375,7 +2363,7 @@ static void tcp_seq_stop(struct seq_file *seq, void *v)
         case TCP_SEQ_STATE_OPENREQ:
                 if (v) {
                         struct tcp_sock *tp = tcp_sk(st->syn_wait_sk);
-                        read_unlock_bh(&tp->syn_wait_lock);
+                        read_unlock_bh(&tp->accept_queue.syn_wait_lock);
                 }
         case TCP_SEQ_STATE_LISTENING:
                 if (v != SEQ_START_TOKEN)
@@ -2451,18 +2439,19 @@ void tcp_proc_unregister(struct tcp_seq_afinfo *afinfo)
         memset(afinfo->seq_fops, 0, sizeof(*afinfo->seq_fops)); 
 }
 
-static void get_openreq4(struct sock *sk, struct open_request *req,
+static void get_openreq4(struct sock *sk, struct request_sock *req,
                          char *tmpbuf, int i, int uid)
 {
+        const struct inet_request_sock *ireq = inet_rsk(req);
         int ttd = req->expires - jiffies;
 
         sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X"
                 " %02X %08X:%08X %02X:%08lX %08X %5d %8d %u %d %p",
                 i,
-                req->af.v4_req.loc_addr,
+                ireq->loc_addr,
                 ntohs(inet_sk(sk)->sport),
-                req->af.v4_req.rmt_addr,
-                ntohs(req->rmt_port),
+                ireq->rmt_addr,
+                ntohs(ireq->rmt_port),
                 TCP_SYN_RECV,
                 0, 0, /* could print option size, but that is af dependent. */
                 1,    /* timers active (only the expire timer) */
@@ -2618,6 +2607,7 @@ struct proto tcp_prot = {
         .sysctl_rmem            = sysctl_tcp_rmem,
         .max_header             = MAX_TCP_HEADER,
         .obj_size               = sizeof(struct tcp_sock),
+        .rsk_prot               = &tcp_request_sock_ops,
 };
 
 
@@ -2660,7 +2650,6 @@ EXPORT_SYMBOL(tcp_proc_register);
 EXPORT_SYMBOL(tcp_proc_unregister);
 #endif
 EXPORT_SYMBOL(sysctl_local_port_range);
-EXPORT_SYMBOL(sysctl_max_syn_backlog);
 EXPORT_SYMBOL(sysctl_tcp_low_latency);
 EXPORT_SYMBOL(sysctl_tcp_tw_reuse);
 
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index eea1a17a9ac2..f42a284164b7 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -684,7 +684,7 @@ out:
  * Actually, we could lots of memory writes here. tp of listening
  * socket contains all necessary default parameters.
  */
-struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req, struct sk_buff *skb)
+struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, struct sk_buff *skb)
 {
         /* allocate the newsk from the same slab of the master sock,
          * if not, at sk_free time we'll try to free it from the wrong
@@ -692,6 +692,8 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
         struct sock *newsk = sk_alloc(PF_INET, GFP_ATOMIC, sk->sk_prot, 0);
 
         if(newsk != NULL) {
+                struct inet_request_sock *ireq = inet_rsk(req);
+                struct tcp_request_sock *treq = tcp_rsk(req);
                 struct tcp_sock *newtp;
                 struct sk_filter *filter;
 
@@ -703,7 +705,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
                 tcp_sk(newsk)->bind_hash = NULL;
 
                 /* Clone the TCP header template */
-                inet_sk(newsk)->dport = req->rmt_port;
+                inet_sk(newsk)->dport = ireq->rmt_port;
 
                 sock_lock_init(newsk);
                 bh_lock_sock(newsk);
@@ -739,14 +741,14 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
                 /* Now setup tcp_sock */
                 newtp = tcp_sk(newsk);
                 newtp->pred_flags = 0;
-                newtp->rcv_nxt = req->rcv_isn + 1;
-                newtp->snd_nxt = req->snt_isn + 1;
-                newtp->snd_una = req->snt_isn + 1;
-                newtp->snd_sml = req->snt_isn + 1;
+                newtp->rcv_nxt = treq->rcv_isn + 1;
+                newtp->snd_nxt = treq->snt_isn + 1;
+                newtp->snd_una = treq->snt_isn + 1;
+                newtp->snd_sml = treq->snt_isn + 1;
 
                 tcp_prequeue_init(newtp);
 
-                tcp_init_wl(newtp, req->snt_isn, req->rcv_isn);
+                tcp_init_wl(newtp, treq->snt_isn, treq->rcv_isn);
 
                 newtp->retransmits = 0;
                 newtp->backoff = 0;
@@ -772,13 +774,15 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
                 newtp->frto_counter = 0;
                 newtp->frto_highmark = 0;
 
+                newtp->ca_ops = &tcp_reno;
+
                 tcp_set_ca_state(newtp, TCP_CA_Open);
                 tcp_init_xmit_timers(newsk);
                 skb_queue_head_init(&newtp->out_of_order_queue);
-                newtp->rcv_wup = req->rcv_isn + 1;
-                newtp->write_seq = req->snt_isn + 1;
+                newtp->rcv_wup = treq->rcv_isn + 1;
+                newtp->write_seq = treq->snt_isn + 1;
                 newtp->pushed_seq = newtp->write_seq;
-                newtp->copied_seq = req->rcv_isn + 1;
+                newtp->copied_seq = treq->rcv_isn + 1;
 
                 newtp->rx_opt.saw_tstamp = 0;
 
@@ -788,10 +792,8 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
                 newtp->probes_out = 0;
                 newtp->rx_opt.num_sacks = 0;
                 newtp->urg_data = 0;
-                newtp->listen_opt = NULL;
-                newtp->accept_queue = newtp->accept_queue_tail = NULL;
-                /* Deinitialize syn_wait_lock to trap illegal accesses. */
-                memset(&newtp->syn_wait_lock, 0, sizeof(newtp->syn_wait_lock));
+                /* Deinitialize accept_queue to trap illegal accesses. */
+                memset(&newtp->accept_queue, 0, sizeof(newtp->accept_queue));
 
                 /* Back to base struct sock members. */
                 newsk->sk_err = 0;
@@ -808,18 +810,18 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
                 newsk->sk_socket = NULL;
                 newsk->sk_sleep = NULL;
 
-                newtp->rx_opt.tstamp_ok = req->tstamp_ok;
-                if((newtp->rx_opt.sack_ok = req->sack_ok) != 0) {
+                newtp->rx_opt.tstamp_ok = ireq->tstamp_ok;
+                if((newtp->rx_opt.sack_ok = ireq->sack_ok) != 0) {
                         if (sysctl_tcp_fack)
                                 newtp->rx_opt.sack_ok |= 2;
                 }
                 newtp->window_clamp = req->window_clamp;
                 newtp->rcv_ssthresh = req->rcv_wnd;
                 newtp->rcv_wnd = req->rcv_wnd;
-                newtp->rx_opt.wscale_ok = req->wscale_ok;
+                newtp->rx_opt.wscale_ok = ireq->wscale_ok;
                 if (newtp->rx_opt.wscale_ok) {
-                        newtp->rx_opt.snd_wscale = req->snd_wscale;
-                        newtp->rx_opt.rcv_wscale = req->rcv_wscale;
+                        newtp->rx_opt.snd_wscale = ireq->snd_wscale;
+                        newtp->rx_opt.rcv_wscale = ireq->rcv_wscale;
                 } else {
                         newtp->rx_opt.snd_wscale = newtp->rx_opt.rcv_wscale = 0;
                         newtp->window_clamp = min(newtp->window_clamp, 65535U);
@@ -842,8 +844,6 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
                 if (newtp->ecn_flags&TCP_ECN_OK)
                         sock_set_flag(newsk, SOCK_NO_LARGESEND);
 
-                tcp_ca_init(newtp);
-
                 TCP_INC_STATS_BH(TCP_MIB_PASSIVEOPENS);
         }
         return newsk;
@@ -851,12 +851,12 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
 
 /* 
  *      Process an incoming packet for SYN_RECV sockets represented
- *      as an open_request.
+ *      as a request_sock.
  */
 
 struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
-                           struct open_request *req,
-                           struct open_request **prev)
+                           struct request_sock *req,
+                           struct request_sock **prev)
 {
         struct tcphdr *th = skb->h.th;
         struct tcp_sock *tp = tcp_sk(sk);
@@ -881,7 +881,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
         }
 
         /* Check for pure retransmitted SYN. */
-        if (TCP_SKB_CB(skb)->seq == req->rcv_isn &&
+        if (TCP_SKB_CB(skb)->seq == tcp_rsk(req)->rcv_isn &&
             flg == TCP_FLAG_SYN &&
             !paws_reject) {
                 /*
@@ -901,7 +901,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
                  * Enforce "SYN-ACK" according to figure 8, figure 6
                  * of RFC793, fixed by RFC1122.
                  */
-                req->class->rtx_syn_ack(sk, req, NULL);
+                req->rsk_ops->rtx_syn_ack(sk, req, NULL);
                 return NULL;
         }
 
@@ -959,7 +959,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
          * Invalid ACK: reset will be sent by listening socket
          */
         if ((flg & TCP_FLAG_ACK) &&
-            (TCP_SKB_CB(skb)->ack_seq != req->snt_isn+1))
+            (TCP_SKB_CB(skb)->ack_seq != tcp_rsk(req)->snt_isn + 1))
                 return sk;
 
         /* Also, it would be not so bad idea to check rcv_tsecr, which
@@ -970,10 +970,10 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
         /* RFC793: "first check sequence number". */
 
         if (paws_reject || !tcp_in_window(TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
-                                          req->rcv_isn+1, req->rcv_isn+1+req->rcv_wnd)) {
+                                          tcp_rsk(req)->rcv_isn + 1, tcp_rsk(req)->rcv_isn + 1 + req->rcv_wnd)) {
                 /* Out of window: send ACK and drop. */
                 if (!(flg & TCP_FLAG_RST))
-                        req->class->send_ack(skb, req);
+                        req->rsk_ops->send_ack(skb, req);
                 if (paws_reject)
                         NET_INC_STATS_BH(LINUX_MIB_PAWSESTABREJECTED);
                 return NULL;
@@ -981,12 +981,12 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 
         /* In sequence, PAWS is OK. */
 
-        if (tmp_opt.saw_tstamp && !after(TCP_SKB_CB(skb)->seq, req->rcv_isn+1))
+        if (tmp_opt.saw_tstamp && !after(TCP_SKB_CB(skb)->seq, tcp_rsk(req)->rcv_isn + 1))
                         req->ts_recent = tmp_opt.rcv_tsval;
 
-                if (TCP_SKB_CB(skb)->seq == req->rcv_isn) {
+                if (TCP_SKB_CB(skb)->seq == tcp_rsk(req)->rcv_isn) {
                         /* Truncate SYN, it is out of window starting
-                           at req->rcv_isn+1. */
+                           at tcp_rsk(req)->rcv_isn + 1. */
                         flg &= ~TCP_FLAG_SYN;
                 }
 
@@ -1003,8 +1003,8 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
                         return NULL;
 
                 /* If TCP_DEFER_ACCEPT is set, drop bare ACK. */
-                if (tp->defer_accept && TCP_SKB_CB(skb)->end_seq == req->rcv_isn+1) {
-                        req->acked = 1;
+                if (tp->defer_accept && TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
+                        inet_rsk(req)->acked = 1;
                         return NULL;
                 }
 
@@ -1026,14 +1026,14 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 
         listen_overflow:
                 if (!sysctl_tcp_abort_on_overflow) {
-                        req->acked = 1;
+                        inet_rsk(req)->acked = 1;
                         return NULL;
                 }
 
         embryonic_reset:
                 NET_INC_STATS_BH(LINUX_MIB_EMBRYONICRSTS);
                 if (!(flg & TCP_FLAG_RST))
-                        req->class->send_reset(skb);
+                        req->rsk_ops->send_reset(skb);
 
                 tcp_synq_drop(sk, req, prev);
                 return NULL;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index fa24e7ae1f40..0e17c244875c 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -111,8 +111,7 @@ static void tcp_cwnd_restart(struct tcp_sock *tp, struct dst_entry *dst)
         u32 restart_cwnd = tcp_init_cwnd(tp, dst);
         u32 cwnd = tp->snd_cwnd;
 
-        if (tcp_is_vegas(tp)) 
-                tcp_vegas_enable(tp);
+        tcp_ca_event(tp, CA_EVENT_CWND_RESTART);
 
         tp->snd_ssthresh = tcp_current_ssthresh(tp);
         restart_cwnd = min(restart_cwnd, cwnd);
@@ -280,6 +279,10 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 #define SYSCTL_FLAG_WSCALE      0x2
 #define SYSCTL_FLAG_SACK        0x4
 
+                /* If congestion control is doing timestamping */
+                if (tp->ca_ops->rtt_sample)
+                        do_gettimeofday(&skb->stamp);
+
                 sysctl_flags = 0;
                 if (tcb->flags & TCPCB_FLAG_SYN) {
                         tcp_header_size = sizeof(struct tcphdr) + TCPOLEN_MSS;
@@ -304,17 +307,8 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb)
                                             (tp->rx_opt.eff_sacks * TCPOLEN_SACK_PERBLOCK));
                 }
                 
-                /*
-                 * If the connection is idle and we are restarting,
-                 * then we don't want to do any Vegas calculations
-                 * until we get fresh RTT samples.  So when we
-                 * restart, we reset our Vegas state to a clean
-                 * slate. After we get acks for this flight of
-                 * packets, _then_ we can make Vegas calculations
-                 * again.
-                 */
-                if (tcp_is_vegas(tp) && tcp_packets_in_flight(tp) == 0)
-                        tcp_vegas_enable(tp);
+                if (tcp_packets_in_flight(tp) == 0)
+                        tcp_ca_event(tp, CA_EVENT_TX_START);
 
                 th = (struct tcphdr *) skb_push(skb, tcp_header_size);
                 skb->h.th = th;
@@ -521,6 +515,7 @@ static int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len)
          * skbs, which it never sent before. --ANK
          */
         TCP_SKB_CB(buff)->when = TCP_SKB_CB(skb)->when;
+        buff->stamp = skb->stamp;
 
         if (TCP_SKB_CB(skb)->sacked & TCPCB_LOST) {
                 tp->lost_out -= tcp_skb_pcount(skb);
@@ -1356,8 +1351,9 @@ int tcp_send_synack(struct sock *sk)
  * Prepare a SYN-ACK.
  */
 struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst,
-                                 struct open_request *req)
+                                 struct request_sock *req)
 {
+        struct inet_request_sock *ireq = inet_rsk(req);
         struct tcp_sock *tp = tcp_sk(sk);
         struct tcphdr *th;
         int tcp_header_size;
@@ -1373,47 +1369,47 @@ struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst,
         skb->dst = dst_clone(dst);
 
         tcp_header_size = (sizeof(struct tcphdr) + TCPOLEN_MSS +
-                           (req->tstamp_ok ? TCPOLEN_TSTAMP_ALIGNED : 0) +
-                           (req->wscale_ok ? TCPOLEN_WSCALE_ALIGNED : 0) +
+                           (ireq->tstamp_ok ? TCPOLEN_TSTAMP_ALIGNED : 0) +
+                           (ireq->wscale_ok ? TCPOLEN_WSCALE_ALIGNED : 0) +
                            /* SACK_PERM is in the place of NOP NOP of TS */
-                           ((req->sack_ok && !req->tstamp_ok) ? TCPOLEN_SACKPERM_ALIGNED : 0));
+                           ((ireq->sack_ok && !ireq->tstamp_ok) ? TCPOLEN_SACKPERM_ALIGNED : 0));
         skb->h.th = th = (struct tcphdr *) skb_push(skb, tcp_header_size);
 
         memset(th, 0, sizeof(struct tcphdr));
         th->syn = 1;
         th->ack = 1;
         if (dst->dev->features&NETIF_F_TSO)
-                req->ecn_ok = 0;
+                ireq->ecn_ok = 0;
         TCP_ECN_make_synack(req, th);
         th->source = inet_sk(sk)->sport;
-        th->dest = req->rmt_port;
-        TCP_SKB_CB(skb)->seq = req->snt_isn;
+        th->dest = ireq->rmt_port;
+        TCP_SKB_CB(skb)->seq = tcp_rsk(req)->snt_isn;
         TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(skb)->seq + 1;
         TCP_SKB_CB(skb)->sacked = 0;
         skb_shinfo(skb)->tso_segs = 1;
         skb_shinfo(skb)->tso_size = 0;
         th->seq = htonl(TCP_SKB_CB(skb)->seq);
-        th->ack_seq = htonl(req->rcv_isn + 1);
+        th->ack_seq = htonl(tcp_rsk(req)->rcv_isn + 1);
         if (req->rcv_wnd == 0) { /* ignored for retransmitted syns */
                 __u8 rcv_wscale; 
                 /* Set this up on the first call only */
                 req->window_clamp = tp->window_clamp ? : dst_metric(dst, RTAX_WINDOW);
                 /* tcp_full_space because it is guaranteed to be the first packet */
                 tcp_select_initial_window(tcp_full_space(sk), 
-                        dst_metric(dst, RTAX_ADVMSS) - (req->tstamp_ok ? TCPOLEN_TSTAMP_ALIGNED : 0),
+                        dst_metric(dst, RTAX_ADVMSS) - (ireq->tstamp_ok ? TCPOLEN_TSTAMP_ALIGNED : 0),
                         &req->rcv_wnd,
                         &req->window_clamp,
-                        req->wscale_ok,
+                        ireq->wscale_ok,
                         &rcv_wscale);
-                req->rcv_wscale = rcv_wscale; 
+                ireq->rcv_wscale = rcv_wscale; 
         }
 
         /* RFC1323: The window in SYN & SYN/ACK segments is never scaled. */
         th->window = htons(req->rcv_wnd);
 
         TCP_SKB_CB(skb)->when = tcp_time_stamp;
-        tcp_syn_build_options((__u32 *)(th + 1), dst_metric(dst, RTAX_ADVMSS), req->tstamp_ok,
-                              req->sack_ok, req->wscale_ok, req->rcv_wscale,
+        tcp_syn_build_options((__u32 *)(th + 1), dst_metric(dst, RTAX_ADVMSS), ireq->tstamp_ok,
+                              ireq->sack_ok, ireq->wscale_ok, ireq->rcv_wscale,
                               TCP_SKB_CB(skb)->when,
                               req->ts_recent);
 
@@ -1448,7 +1444,6 @@ static inline void tcp_connect_init(struct sock *sk)
                 tp->window_clamp = dst_metric(dst, RTAX_WINDOW);
         tp->advmss = dst_metric(dst, RTAX_ADVMSS);
         tcp_initialize_rcv_mss(sk);
-        tcp_ca_init(tp);
 
         tcp_select_initial_window(tcp_full_space(sk),
                                   tp->advmss - (tp->rx_opt.ts_recent_stamp ? tp->tcp_header_len - sizeof(struct tcphdr) : 0),
@@ -1502,7 +1497,6 @@ int tcp_connect(struct sock *sk)
         TCP_SKB_CB(buff)->end_seq = tp->write_seq;
         tp->snd_nxt = tp->write_seq;
         tp->pushed_seq = tp->write_seq;
-        tcp_ca_init(tp);
 
         /* Send it off. */
         TCP_SKB_CB(buff)->when = tcp_time_stamp;
diff --git a/net/ipv4/tcp_scalable.c b/net/ipv4/tcp_scalable.c
new file mode 100644
index 000000000000..70e108e15c71
--- /dev/null
+++ b/net/ipv4/tcp_scalable.c
@@ -0,0 +1,68 @@
+/* Tom Kelly's Scalable TCP
+ *
+ * See htt://www-lce.eng.cam.ac.uk/~ctk21/scalable/
+ *
+ * John Heffner <jheffner@sc.edu>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <net/tcp.h>
+
+/* These factors derived from the recommended values in the aer:
+ * .01 and and 7/8. We use 50 instead of 100 to account for
+ * delayed ack.
+ */
+#define TCP_SCALABLE_AI_CNT     50U
+#define TCP_SCALABLE_MD_SCALE   3
+
+static void tcp_scalable_cong_avoid(struct tcp_sock *tp, u32 ack, u32 rtt,
+                                    u32 in_flight, int flag)
+{
+        if (in_flight < tp->snd_cwnd)
+                return;
+
+        if (tp->snd_cwnd <= tp->snd_ssthresh) {
+                tp->snd_cwnd++;
+        } else {
+                tp->snd_cwnd_cnt++;
+                if (tp->snd_cwnd_cnt > min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT)){
+                        tp->snd_cwnd++;
+                        tp->snd_cwnd_cnt = 0;
+                }
+        }
+        tp->snd_cwnd = min_t(u32, tp->snd_cwnd, tp->snd_cwnd_clamp);
+        tp->snd_cwnd_stamp = tcp_time_stamp;
+}
+
+static u32 tcp_scalable_ssthresh(struct tcp_sock *tp)
+{
+        return max(tp->snd_cwnd - (tp->snd_cwnd>>TCP_SCALABLE_MD_SCALE), 2U);
+}
+
+
+static struct tcp_congestion_ops tcp_scalable = {
+        .ssthresh       = tcp_scalable_ssthresh,
+        .cong_avoid     = tcp_scalable_cong_avoid,
+        .min_cwnd       = tcp_reno_min_cwnd,
+
+        .owner          = THIS_MODULE,
+        .name           = "scalable",
+};
+
+static int __init tcp_scalable_register(void)
+{
+        return tcp_register_congestion_control(&tcp_scalable);
+}
+
+static void __exit tcp_scalable_unregister(void)
+{
+        tcp_unregister_congestion_control(&tcp_scalable);
+}
+
+module_init(tcp_scalable_register);
+module_exit(tcp_scalable_unregister);
+
+MODULE_AUTHOR("John Heffner");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Scalable TCP");
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 799ebe061e2c..b127b4498565 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -464,11 +464,11 @@ out_unlock:
 static void tcp_synack_timer(struct sock *sk)
 {
         struct tcp_sock *tp = tcp_sk(sk);
-        struct tcp_listen_opt *lopt = tp->listen_opt;
+        struct listen_sock *lopt = tp->accept_queue.listen_opt;
         int max_retries = tp->syn_retries ? : sysctl_tcp_synack_retries;
         int thresh = max_retries;
         unsigned long now = jiffies;
-        struct open_request **reqp, *req;
+        struct request_sock **reqp, *req;
         int i, budget;
 
         if (lopt == NULL || lopt->qlen == 0)
@@ -513,8 +513,8 @@ static void tcp_synack_timer(struct sock *sk)
                 while ((req = *reqp) != NULL) {
                         if (time_after_eq(now, req->expires)) {
                                 if ((req->retrans < thresh ||
-                                     (req->acked && req->retrans < max_retries))
-                                    && !req->class->rtx_syn_ack(sk, req, NULL)) {
+                                     (inet_rsk(req)->acked && req->retrans < max_retries))
+                                    && !req->rsk_ops->rtx_syn_ack(sk, req, NULL)) {
                                         unsigned long timeo;
 
                                         if (req->retrans++ == 0)
@@ -527,13 +527,9 @@ static void tcp_synack_timer(struct sock *sk)
                                 }
 
                                 /* Drop this request */
-                                write_lock(&tp->syn_wait_lock);
-                                *reqp = req->dl_next;
-                                write_unlock(&tp->syn_wait_lock);
-                                lopt->qlen--;
-                                if (req->retrans == 0)
-                                        lopt->qlen_young--;
-                                tcp_openreq_free(req);
+                                tcp_synq_unlink(tp, req, reqp);
+                                reqsk_queue_removed(&tp->accept_queue, req);
+                                reqsk_free(req);
                                 continue;
                         }
                         reqp = &req->dl_next;
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
new file mode 100644
index 000000000000..9bd443db5193
--- /dev/null
+++ b/net/ipv4/tcp_vegas.c
@@ -0,0 +1,411 @@
+/*
+ * TCP Vegas congestion control
+ *
+ * This is based on the congestion detection/avoidance scheme described in
+ *    Lawrence S. Brakmo and Larry L. Peterson.
+ *    "TCP Vegas: End to end congestion avoidance on a global internet."
+ *    IEEE Journal on Selected Areas in Communication, 13(8):1465--1480,
+ *    October 1995. Available from:
+ *      ftp://ftp.cs.arizona.edu/xkernel/Papers/jsac.ps
+ *
+ * See http://www.cs.arizona.edu/xkernel/ for their implementation.
+ * The main aspects that distinguish this implementation from the
+ * Arizona Vegas implementation are:
+ *   o We do not change the loss detection or recovery mechanisms of
+ *     Linux in any way. Linux already recovers from losses quite well,
+ *     using fine-grained timers, NewReno, and FACK.
+ *   o To avoid the performance penalty imposed by increasing cwnd
+ *     only every-other RTT during slow start, we increase during
+ *     every RTT during slow start, just like Reno.
+ *   o Largely to allow continuous cwnd growth during slow start,
+ *     we use the rate at which ACKs come back as the "actual"
+ *     rate, rather than the rate at which data is sent.
+ *   o To speed convergence to the right rate, we set the cwnd
+ *     to achieve the right ("actual") rate when we exit slow start.
+ *   o To filter out the noise caused by delayed ACKs, we use the
+ *     minimum RTT sample observed during the last RTT to calculate
+ *     the actual rate.
+ *   o When the sender re-starts from idle, it waits until it has
+ *     received ACKs for an entire flight of new data before making
+ *     a cwnd adjustment decision. The original Vegas implementation
+ *     assumed senders never went idle.
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/tcp_diag.h>
+
+#include <net/tcp.h>
+
+/* Default values of the Vegas variables, in fixed-point representation
+ * with V_PARAM_SHIFT bits to the right of the binary point.
+ */
+#define V_PARAM_SHIFT 1
+static int alpha = 1<<V_PARAM_SHIFT;
+static int beta  = 3<<V_PARAM_SHIFT;
+static int gamma = 1<<V_PARAM_SHIFT;
+
+module_param(alpha, int, 0644);
+MODULE_PARM_DESC(alpha, "lower bound of packets in network (scale by 2)");
+module_param(beta, int, 0644);
+MODULE_PARM_DESC(beta, "upper bound of packets in network (scale by 2)");
+module_param(gamma, int, 0644);
+MODULE_PARM_DESC(gamma, "limit on increase (scale by 2)");
+
+
+/* Vegas variables */
+struct vegas {
+        u32     beg_snd_nxt;    /* right edge during last RTT */
+        u32     beg_snd_una;    /* left edge  during last RTT */
+        u32     beg_snd_cwnd;   /* saves the size of the cwnd */
+        u8      doing_vegas_now;/* if true, do vegas for this RTT */
+        u16     cntRTT;         /* # of RTTs measured within last RTT */
+        u32     minRTT;         /* min of RTTs measured within last RTT (in usec) */
+        u32     baseRTT;        /* the min of all Vegas RTT measurements seen (in usec) */
+};
+
+/* There are several situations when we must "re-start" Vegas:
+ *
+ *  o when a connection is established
+ *  o after an RTO
+ *  o after fast recovery
+ *  o when we send a packet and there is no outstanding
+ *    unacknowledged data (restarting an idle connection)
+ *
+ * In these circumstances we cannot do a Vegas calculation at the
+ * end of the first RTT, because any calculation we do is using
+ * stale info -- both the saved cwnd and congestion feedback are
+ * stale.
+ *
+ * Instead we must wait until the completion of an RTT during
+ * which we actually receive ACKs.
+ */
+static inline void vegas_enable(struct tcp_sock *tp)
+{
+        struct vegas *vegas = tcp_ca(tp);
+
+        /* Begin taking Vegas samples next time we send something. */
+        vegas->doing_vegas_now = 1;
+
+        /* Set the beginning of the next send window. */
+        vegas->beg_snd_nxt = tp->snd_nxt;
+
+        vegas->cntRTT = 0;
+        vegas->minRTT = 0x7fffffff;
+}
+
+/* Stop taking Vegas samples for now. */
+static inline void vegas_disable(struct tcp_sock *tp)
+{
+        struct vegas *vegas = tcp_ca(tp);
+
+        vegas->doing_vegas_now = 0;
+}
+
+static void tcp_vegas_init(struct tcp_sock *tp)
+{
+        struct vegas *vegas = tcp_ca(tp);
+
+        vegas->baseRTT = 0x7fffffff;
+        vegas_enable(tp);
+}
+
+/* Do RTT sampling needed for Vegas.
+ * Basically we:
+ *   o min-filter RTT samples from within an RTT to get the current
+ *     propagation delay + queuing delay (we are min-filtering to try to
+ *     avoid the effects of delayed ACKs)
+ *   o min-filter RTT samples from a much longer window (forever for now)
+ *     to find the propagation delay (baseRTT)
+ */
+static void tcp_vegas_rtt_calc(struct tcp_sock *tp, u32 usrtt)
+{
+        struct vegas *vegas = tcp_ca(tp);
+        u32 vrtt = usrtt + 1; /* Never allow zero rtt or baseRTT */
+
+        /* Filter to find propagation delay: */
+        if (vrtt < vegas->baseRTT)
+                vegas->baseRTT = vrtt;
+
+        /* Find the min RTT during the last RTT to find
+         * the current prop. delay + queuing delay:
+         */
+        vegas->minRTT = min(vegas->minRTT, vrtt);
+        vegas->cntRTT++;
+}
+
+static void tcp_vegas_state(struct tcp_sock *tp, u8 ca_state)
+{
+
+        if (ca_state == TCP_CA_Open)
+                vegas_enable(tp);
+        else
+                vegas_disable(tp);
+}
+
+/*
+ * If the connection is idle and we are restarting,
+ * then we don't want to do any Vegas calculations
+ * until we get fresh RTT samples.  So when we
+ * restart, we reset our Vegas state to a clean
+ * slate. After we get acks for this flight of
+ * packets, _then_ we can make Vegas calculations
+ * again.
+ */
+static void tcp_vegas_cwnd_event(struct tcp_sock *tp, enum tcp_ca_event event)
+{
+        if (event == CA_EVENT_CWND_RESTART ||
+            event == CA_EVENT_TX_START)
+                tcp_vegas_init(tp);
+}
+
+static void tcp_vegas_cong_avoid(struct tcp_sock *tp, u32 ack,
+                                 u32 seq_rtt, u32 in_flight, int flag)
+{
+        struct vegas *vegas = tcp_ca(tp);
+
+        if (!vegas->doing_vegas_now)
+                return tcp_reno_cong_avoid(tp, ack, seq_rtt, in_flight, flag);
+
+        /* The key players are v_beg_snd_una and v_beg_snd_nxt.
+         *
+         * These are so named because they represent the approximate values
+         * of snd_una and snd_nxt at the beginning of the current RTT. More
+         * precisely, they represent the amount of data sent during the RTT.
+         * At the end of the RTT, when we receive an ACK for v_beg_snd_nxt,
+         * we will calculate that (v_beg_snd_nxt - v_beg_snd_una) outstanding
+         * bytes of data have been ACKed during the course of the RTT, giving
+         * an "actual" rate of:
+         *
+         *     (v_beg_snd_nxt - v_beg_snd_una) / (rtt duration)
+         *
+         * Unfortunately, v_beg_snd_una is not exactly equal to snd_una,
+         * because delayed ACKs can cover more than one segment, so they
+         * don't line up nicely with the boundaries of RTTs.
+         *
+         * Another unfortunate fact of life is that delayed ACKs delay the
+         * advance of the left edge of our send window, so that the number
+         * of bytes we send in an RTT is often less than our cwnd will allow.
+         * So we keep track of our cwnd separately, in v_beg_snd_cwnd.
+         */
+
+        if (after(ack, vegas->beg_snd_nxt)) {
+                /* Do the Vegas once-per-RTT cwnd adjustment. */
+                u32 old_wnd, old_snd_cwnd;
+
+
+                /* Here old_wnd is essentially the window of data that was
+                 * sent during the previous RTT, and has all
+                 * been acknowledged in the course of the RTT that ended
+                 * with the ACK we just received. Likewise, old_snd_cwnd
+                 * is the cwnd during the previous RTT.
+                 */
+                old_wnd = (vegas->beg_snd_nxt - vegas->beg_snd_una) /
+                        tp->mss_cache;
+                old_snd_cwnd = vegas->beg_snd_cwnd;
+
+                /* Save the extent of the current window so we can use this
+                 * at the end of the next RTT.
+                 */
+                vegas->beg_snd_una  = vegas->beg_snd_nxt;
+                vegas->beg_snd_nxt  = tp->snd_nxt;
+                vegas->beg_snd_cwnd = tp->snd_cwnd;
+
+                /* Take into account the current RTT sample too, to
+                 * decrease the impact of delayed acks. This double counts
+                 * this sample since we count it for the next window as well,
+                 * but that's not too awful, since we're taking the min,
+                 * rather than averaging.
+                 */
+                tcp_vegas_rtt_calc(tp, seq_rtt*1000);
+
+                /* We do the Vegas calculations only if we got enough RTT
+                 * samples that we can be reasonably sure that we got
+                 * at least one RTT sample that wasn't from a delayed ACK.
+                 * If we only had 2 samples total,
+                 * then that means we're getting only 1 ACK per RTT, which
+                 * means they're almost certainly delayed ACKs.
+                 * If  we have 3 samples, we should be OK.
+                 */
+
+                if (vegas->cntRTT <= 2) {
+                        /* We don't have enough RTT samples to do the Vegas
+                         * calculation, so we'll behave like Reno.
+                         */
+                        if (tp->snd_cwnd > tp->snd_ssthresh)
+                                tp->snd_cwnd++;
+                } else {
+                        u32 rtt, target_cwnd, diff;
+
+                        /* We have enough RTT samples, so, using the Vegas
+                         * algorithm, we determine if we should increase or
+                         * decrease cwnd, and by how much.
+                         */
+
+                        /* Pluck out the RTT we are using for the Vegas
+                         * calculations. This is the min RTT seen during the
+                         * last RTT. Taking the min filters out the effects
+                         * of delayed ACKs, at the cost of noticing congestion
+                         * a bit later.
+                         */
+                        rtt = vegas->minRTT;
+
+                        /* Calculate the cwnd we should have, if we weren't
+                         * going too fast.
+                         *
+                         * This is:
+                         *     (actual rate in segments) * baseRTT
+                         * We keep it as a fixed point number with
+                         * V_PARAM_SHIFT bits to the right of the binary point.
+                         */
+                        target_cwnd = ((old_wnd * vegas->baseRTT)
+                                       << V_PARAM_SHIFT) / rtt;
+
+                        /* Calculate the difference between the window we had,
+                         * and the window we would like to have. This quantity
+                         * is the "Diff" from the Arizona Vegas papers.
+                         *
+                         * Again, this is a fixed point number with
+                         * V_PARAM_SHIFT bits to the right of the binary
+                         * point.
+                         */
+                        diff = (old_wnd << V_PARAM_SHIFT) - target_cwnd;
+
+                        if (tp->snd_cwnd < tp->snd_ssthresh) {
+                                /* Slow start.  */
+                                if (diff > gamma) {
+                                        /* Going too fast. Time to slow down
+                                         * and switch to congestion avoidance.
+                                         */
+                                        tp->snd_ssthresh = 2;
+
+                                        /* Set cwnd to match the actual rate
+                                         * exactly:
+                                         *   cwnd = (actual rate) * baseRTT
+                                         * Then we add 1 because the integer
+                                         * truncation robs us of full link
+                                         * utilization.
+                                         */
+                                        tp->snd_cwnd = min(tp->snd_cwnd,
+                                                           (target_cwnd >>
+                                                            V_PARAM_SHIFT)+1);
+
+                                }
+                        } else {
+                                /* Congestion avoidance. */
+                                u32 next_snd_cwnd;
+
+                                /* Figure out where we would like cwnd
+                                 * to be.
+                                 */
+                                if (diff > beta) {
+                                        /* The old window was too fast, so
+                                         * we slow down.
+                                         */
+                                        next_snd_cwnd = old_snd_cwnd - 1;
+                                } else if (diff < alpha) {
+                                        /* We don't have enough extra packets
+                                         * in the network, so speed up.
+                                         */
+                                        next_snd_cwnd = old_snd_cwnd + 1;
+                                } else {
+                                        /* Sending just as fast as we
+                                         * should be.
+                                         */
+                                        next_snd_cwnd = old_snd_cwnd;
+                                }
+
+                                /* Adjust cwnd upward or downward, toward the
+                                 * desired value.
+                                 */
+                                if (next_snd_cwnd > tp->snd_cwnd)
+                                        tp->snd_cwnd++;
+                                else if (next_snd_cwnd < tp->snd_cwnd)
+                                        tp->snd_cwnd--;
+                        }
+                }
+
+                /* Wipe the slate clean for the next RTT. */
+                vegas->cntRTT = 0;
+                vegas->minRTT = 0x7fffffff;
+        }
+
+        /* The following code is executed for every ack we receive,
+         * except for conditions checked in should_advance_cwnd()
+         * before the call to tcp_cong_avoid(). Mainly this means that
+         * we only execute this code if the ack actually acked some
+         * data.
+         */
+
+        /* If we are in slow start, increase our cwnd in response to this ACK.
+         * (If we are not in slow start then we are in congestion avoidance,
+         * and adjust our congestion window only once per RTT. See the code
+         * above.)
+         */
+        if (tp->snd_cwnd <= tp->snd_ssthresh)
+                tp->snd_cwnd++;
+
+        /* to keep cwnd from growing without bound */
+        tp->snd_cwnd = min_t(u32, tp->snd_cwnd, tp->snd_cwnd_clamp);
+
+        /* Make sure that we are never so timid as to reduce our cwnd below
+         * 2 MSS.
+         *
+         * Going below 2 MSS would risk huge delayed ACKs from our receiver.
+         */
+        tp->snd_cwnd = max(tp->snd_cwnd, 2U);
+}
+
+/* Extract info for Tcp socket info provided via netlink. */
+static void tcp_vegas_get_info(struct tcp_sock *tp, u32 ext,
+                               struct sk_buff *skb)
+{
+        const struct vegas *ca = tcp_ca(tp);
+        if (ext & (1<<(TCPDIAG_VEGASINFO-1))) {
+                struct tcpvegas_info *info;
+
+                info = RTA_DATA(__RTA_PUT(skb, TCPDIAG_VEGASINFO,
+                                          sizeof(*info)));
+
+                info->tcpv_enabled = ca->doing_vegas_now;
+                info->tcpv_rttcnt = ca->cntRTT;
+                info->tcpv_rtt = ca->baseRTT;
+                info->tcpv_minrtt = ca->minRTT;
+        rtattr_failure: ;
+        }
+}
+
+static struct tcp_congestion_ops tcp_vegas = {
+        .init           = tcp_vegas_init,
+        .ssthresh       = tcp_reno_ssthresh,
+        .cong_avoid     = tcp_vegas_cong_avoid,
+        .min_cwnd       = tcp_reno_min_cwnd,
+        .rtt_sample     = tcp_vegas_rtt_calc,
+        .set_state      = tcp_vegas_state,
+        .cwnd_event     = tcp_vegas_cwnd_event,
+        .get_info       = tcp_vegas_get_info,
+
+        .owner          = THIS_MODULE,
+        .name           = "vegas",
+};
+
+static int __init tcp_vegas_register(void)
+{
+        BUG_ON(sizeof(struct vegas) > TCP_CA_PRIV_SIZE);
+        tcp_register_congestion_control(&tcp_vegas);
+        return 0;
+}
+
+static void __exit tcp_vegas_unregister(void)
+{
+        tcp_unregister_congestion_control(&tcp_vegas);
+}
+
+module_init(tcp_vegas_register);
+module_exit(tcp_vegas_unregister);
+
+MODULE_AUTHOR("Stephen Hemminger");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("TCP Vegas");
diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c
new file mode 100644
index 000000000000..ef827242c940
--- /dev/null
+++ b/net/ipv4/tcp_westwood.c
@@ -0,0 +1,259 @@
+/*
+ * TCP Westwood+
+ *
+ *      Angelo Dell'Aera:       TCP Westwood+ support
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/tcp_diag.h>
+#include <net/tcp.h>
+
+/* TCP Westwood structure */
+struct westwood {
+        u32    bw_ns_est;        /* first bandwidth estimation..not too smoothed 8) */
+        u32    bw_est;           /* bandwidth estimate */
+        u32    rtt_win_sx;       /* here starts a new evaluation... */
+        u32    bk;
+        u32    snd_una;          /* used for evaluating the number of acked bytes */
+        u32    cumul_ack;
+        u32    accounted;
+        u32    rtt;
+        u32    rtt_min;          /* minimum observed RTT */
+};
+
+
+/* TCP Westwood functions and constants */
+#define TCP_WESTWOOD_RTT_MIN   (HZ/20)  /* 50ms */
+#define TCP_WESTWOOD_INIT_RTT  (20*HZ)  /* maybe too conservative?! */
+
+/*
+ * @tcp_westwood_create
+ * This function initializes fields used in TCP Westwood+,
+ * it is called after the initial SYN, so the sequence numbers
+ * are correct but new passive connections we have no
+ * information about RTTmin at this time so we simply set it to
+ * TCP_WESTWOOD_INIT_RTT. This value was chosen to be too conservative
+ * since in this way we're sure it will be updated in a consistent
+ * way as soon as possible. It will reasonably happen within the first
+ * RTT period of the connection lifetime.
+ */
+static void tcp_westwood_init(struct tcp_sock *tp)
+{
+        struct westwood *w = tcp_ca(tp);
+
+        w->bk = 0;
+        w->bw_ns_est = 0;
+        w->bw_est = 0;
+        w->accounted = 0;
+        w->cumul_ack = 0;
+        w->rtt_min = w->rtt = TCP_WESTWOOD_INIT_RTT;
+        w->rtt_win_sx = tcp_time_stamp;
+        w->snd_una = tp->snd_una;
+}
+
+/*
+ * @westwood_do_filter
+ * Low-pass filter. Implemented using constant coefficients.
+ */
+static inline u32 westwood_do_filter(u32 a, u32 b)
+{
+        return (((7 * a) + b) >> 3);
+}
+
+static inline void westwood_filter(struct westwood *w, u32 delta)
+{
+        w->bw_ns_est = westwood_do_filter(w->bw_ns_est, w->bk / delta);
+        w->bw_est = westwood_do_filter(w->bw_est, w->bw_ns_est);
+}
+
+/*
+ * @westwood_pkts_acked
+ * Called after processing group of packets.
+ * but all westwood needs is the last sample of srtt.
+ */
+static void tcp_westwood_pkts_acked(struct tcp_sock *tp, u32 cnt)
+{
+        struct westwood *w = tcp_ca(tp);
+        if (cnt > 0)
+                w->rtt = tp->srtt >> 3;
+}
+
+/*
+ * @westwood_update_window
+ * It updates RTT evaluation window if it is the right moment to do
+ * it. If so it calls filter for evaluating bandwidth.
+ */
+static void westwood_update_window(struct tcp_sock *tp)
+{
+        struct westwood *w = tcp_ca(tp);
+        s32 delta = tcp_time_stamp - w->rtt_win_sx;
+
+        /*
+         * See if a RTT-window has passed.
+         * Be careful since if RTT is less than
+         * 50ms we don't filter but we continue 'building the sample'.
+         * This minimum limit was chosen since an estimation on small
+         * time intervals is better to avoid...
+         * Obviously on a LAN we reasonably will always have
+         * right_bound = left_bound + WESTWOOD_RTT_MIN
+         */
+        if (w->rtt && delta > max_t(u32, w->rtt, TCP_WESTWOOD_RTT_MIN)) {
+                westwood_filter(w, delta);
+
+                w->bk = 0;
+                w->rtt_win_sx = tcp_time_stamp;
+        }
+}
+
+/*
+ * @westwood_fast_bw
+ * It is called when we are in fast path. In particular it is called when
+ * header prediction is successful. In such case in fact update is
+ * straight forward and doesn't need any particular care.
+ */
+static inline void westwood_fast_bw(struct tcp_sock *tp)
+{
+        struct westwood *w = tcp_ca(tp);
+
+        westwood_update_window(tp);
+
+        w->bk += tp->snd_una - w->snd_una;
+        w->snd_una = tp->snd_una;
+        w->rtt_min = min(w->rtt, w->rtt_min);
+}
+
+/*
+ * @westwood_acked_count
+ * This function evaluates cumul_ack for evaluating bk in case of
+ * delayed or partial acks.
+ */
+static inline u32 westwood_acked_count(struct tcp_sock *tp)
+{
+        struct westwood *w = tcp_ca(tp);
+
+        w->cumul_ack = tp->snd_una - w->snd_una;
+
+        /* If cumul_ack is 0 this is a dupack since it's not moving
+         * tp->snd_una.
+         */
+        if (!w->cumul_ack) {
+                w->accounted += tp->mss_cache;
+                w->cumul_ack = tp->mss_cache;
+        }
+
+        if (w->cumul_ack > tp->mss_cache) {
+                /* Partial or delayed ack */
+                if (w->accounted >= w->cumul_ack) {
+                        w->accounted -= w->cumul_ack;
+                        w->cumul_ack = tp->mss_cache;
+                } else {
+                        w->cumul_ack -= w->accounted;
+                        w->accounted = 0;
+                }
+        }
+
+        w->snd_una = tp->snd_una;
+
+        return w->cumul_ack;
+}
+
+static inline u32 westwood_bw_rttmin(const struct tcp_sock *tp)
+{
+        struct westwood *w = tcp_ca(tp);
+        return max_t(u32, (w->bw_est * w->rtt_min) / tp->mss_cache, 2);
+}
+
+/*
+ * TCP Westwood
+ * Here limit is evaluated as Bw estimation*RTTmin (for obtaining it
+ * in packets we use mss_cache). Rttmin is guaranteed to be >= 2
+ * so avoids ever returning 0.
+ */
+static u32 tcp_westwood_cwnd_min(struct tcp_sock *tp)
+{
+        return westwood_bw_rttmin(tp);
+}
+
+static void tcp_westwood_event(struct tcp_sock *tp, enum tcp_ca_event event)
+{
+        struct westwood *w = tcp_ca(tp);
+
+        switch(event) {
+        case CA_EVENT_FAST_ACK:
+                westwood_fast_bw(tp);
+                break;
+
+        case CA_EVENT_COMPLETE_CWR:
+                tp->snd_cwnd = tp->snd_ssthresh = westwood_bw_rttmin(tp);
+                break;
+
+        case CA_EVENT_FRTO:
+                tp->snd_ssthresh = westwood_bw_rttmin(tp);
+                break;
+
+        case CA_EVENT_SLOW_ACK:
+                westwood_update_window(tp);
+                w->bk += westwood_acked_count(tp);
+                w->rtt_min = min(w->rtt, w->rtt_min);
+                break;
+
+        default:
+                /* don't care */
+                break;
+        }
+}
+
+
+/* Extract info for Tcp socket info provided via netlink. */
+static void tcp_westwood_info(struct tcp_sock *tp, u32 ext,
+                              struct sk_buff *skb)
+{
+        const struct westwood *ca = tcp_ca(tp);
+        if (ext & (1<<(TCPDIAG_VEGASINFO-1))) {
+                struct rtattr *rta;
+                struct tcpvegas_info *info;
+
+                rta = __RTA_PUT(skb, TCPDIAG_VEGASINFO, sizeof(*info));
+                info = RTA_DATA(rta);
+                info->tcpv_enabled = 1;
+                info->tcpv_rttcnt = 0;
+                info->tcpv_rtt = jiffies_to_usecs(ca->rtt);
+                info->tcpv_minrtt = jiffies_to_usecs(ca->rtt_min);
+        rtattr_failure: ;
+        }
+}
+
+
+static struct tcp_congestion_ops tcp_westwood = {
+        .init           = tcp_westwood_init,
+        .ssthresh       = tcp_reno_ssthresh,
+        .cong_avoid     = tcp_reno_cong_avoid,
+        .min_cwnd       = tcp_westwood_cwnd_min,
+        .cwnd_event     = tcp_westwood_event,
+        .get_info       = tcp_westwood_info,
+        .pkts_acked     = tcp_westwood_pkts_acked,
+
+        .owner          = THIS_MODULE,
+        .name           = "westwood"
+};
+
+static int __init tcp_westwood_register(void)
+{
+        BUG_ON(sizeof(struct westwood) > TCP_CA_PRIV_SIZE);
+        return tcp_register_congestion_control(&tcp_westwood);
+}
+
+static void __exit tcp_westwood_unregister(void)
+{
+        tcp_unregister_congestion_control(&tcp_westwood);
+}
+
+module_init(tcp_westwood_register);
+module_exit(tcp_westwood_unregister);
+
+MODULE_AUTHOR("Stephen Hemminger, Angelo Dell'Aera");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("TCP Westwood+");
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 4a6952e3fee9..7c24e64b443f 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -738,7 +738,7 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg)
                         unsigned long amount;
 
                         amount = 0;
-                        spin_lock_irq(&sk->sk_receive_queue.lock);
+                        spin_lock_bh(&sk->sk_receive_queue.lock);
                         skb = skb_peek(&sk->sk_receive_queue);
                         if (skb != NULL) {
                                 /*
@@ -748,7 +748,7 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg)
                                  */
                                 amount = skb->len - sizeof(struct udphdr);
                         }
-                        spin_unlock_irq(&sk->sk_receive_queue.lock);
+                        spin_unlock_bh(&sk->sk_receive_queue.lock);
                         return put_user(amount, (int __user *)arg);
                 }
 
@@ -848,12 +848,12 @@ csum_copy_err:
         /* Clear queue. */
         if (flags&MSG_PEEK) {
                 int clear = 0;
-                spin_lock_irq(&sk->sk_receive_queue.lock);
+                spin_lock_bh(&sk->sk_receive_queue.lock);
                 if (skb == skb_peek(&sk->sk_receive_queue)) {
                         __skb_unlink(skb, &sk->sk_receive_queue);
                         clear = 1;
                 }
-                spin_unlock_irq(&sk->sk_receive_queue.lock);
+                spin_unlock_bh(&sk->sk_receive_queue.lock);
                 if (clear)
                         kfree_skb(skb);
         }
@@ -1334,7 +1334,7 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
                 struct sk_buff_head *rcvq = &sk->sk_receive_queue;
                 struct sk_buff *skb;
 
-                spin_lock_irq(&rcvq->lock);
+                spin_lock_bh(&rcvq->lock);
                 while ((skb = skb_peek(rcvq)) != NULL) {
                         if (udp_checksum_complete(skb)) {
                                 UDP_INC_STATS_BH(UDP_MIB_INERRORS);
@@ -1345,7 +1345,7 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
                                 break;
                         }
                 }
-                spin_unlock_irq(&rcvq->lock);
+                spin_unlock_bh(&rcvq->lock);
 
                 /* nothing to see, move along */
                 if (skb == NULL)
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index af2392ae5769..66620a95942a 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -33,6 +33,7 @@ static void xfrm4_encap(struct sk_buff *skb)
         struct dst_entry *dst = skb->dst;
         struct xfrm_state *x = dst->xfrm;
         struct iphdr *iph, *top_iph;
+        int flags;
 
         iph = skb->nh.iph;
         skb->h.ipiph = iph;
@@ -51,10 +52,13 @@ static void xfrm4_encap(struct sk_buff *skb)
 
         /* DS disclosed */
         top_iph->tos = INET_ECN_encapsulate(iph->tos, iph->tos);
-        if (x->props.flags & XFRM_STATE_NOECN)
+
+        flags = x->props.flags;
+        if (flags & XFRM_STATE_NOECN)
                 IP_ECN_clear(top_iph);
 
-        top_iph->frag_off = iph->frag_off & htons(IP_DF);
+        top_iph->frag_off = (flags & XFRM_STATE_NOPMTUDISC) ?
+                0 : (iph->frag_off & htons(IP_DF));
         if (!top_iph->frag_off)
                 __ip_select_ident(top_iph, dst, 0);
 
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 223a2e83853f..050611d7a967 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -7,12 +7,20 @@
  *
  */
 
+#include <net/ip.h>
 #include <net/xfrm.h>
 #include <linux/pfkeyv2.h>
 #include <linux/ipsec.h>
 
 static struct xfrm_state_afinfo xfrm4_state_afinfo;
 
+static int xfrm4_init_flags(struct xfrm_state *x)
+{
+        if (ipv4_config.no_pmtu_disc)
+                x->props.flags |= XFRM_STATE_NOPMTUDISC;
+        return 0;
+}
+
 static void
 __xfrm4_init_tempsel(struct xfrm_state *x, struct flowi *fl,
                      struct xfrm_tmpl *tmpl,
@@ -109,6 +117,7 @@ __xfrm4_find_acq(u8 mode, u32 reqid, u8 proto,
 static struct xfrm_state_afinfo xfrm4_state_afinfo = {
         .family                 = AF_INET,
         .lock                   = RW_LOCK_UNLOCKED,
+        .init_flags             = xfrm4_init_flags,
         .init_tempsel           = __xfrm4_init_tempsel,
         .state_lookup           = __xfrm4_state_lookup,
         .find_acq               = __xfrm4_find_acq,
diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 413191f585f6..e1fe360ed27a 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -84,7 +84,7 @@ static void ipip_err(struct sk_buff *skb, u32 info)
                 handler->err_handler(skb, &arg);
 }
 
-static int ipip_init_state(struct xfrm_state *x, void *args)
+static int ipip_init_state(struct xfrm_state *x)
 {
         if (!x->props.mode)
                 return -EINVAL;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 7744a2592693..a54d4ef3fd35 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -57,6 +57,7 @@
 #endif
 #include <linux/delay.h>
 #include <linux/notifier.h>
+#include <linux/string.h>
 
 #include <net/sock.h>
 #include <net/snmp.h>
@@ -131,7 +132,7 @@ static void addrconf_leave_anycast(struct inet6_ifaddr *ifp);
 
 static int addrconf_ifdown(struct net_device *dev, int how);
 
-static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags);
+static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags);
 static void addrconf_dad_timer(unsigned long data);
 static void addrconf_dad_completed(struct inet6_ifaddr *ifp);
 static void addrconf_rs_timer(unsigned long data);
@@ -372,6 +373,7 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
                 ndev->regen_timer.data = (unsigned long) ndev;
                 if ((dev->flags&IFF_LOOPBACK) ||
                     dev->type == ARPHRD_TUNNEL ||
+                    dev->type == ARPHRD_NONE ||
                     dev->type == ARPHRD_SIT) {
                         printk(KERN_INFO
                                 "Disabled Privacy Extensions on device %p(%s)\n",
@@ -491,7 +493,7 @@ void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp)
 
 static struct inet6_ifaddr *
 ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
-              int scope, unsigned flags)
+              int scope, u32 flags)
 {
         struct inet6_ifaddr *ifa = NULL;
         struct rt6_info *rt;
@@ -694,7 +696,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
 
                 if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
                         if (onlink == 0) {
-                                ip6_del_rt(rt, NULL, NULL);
+                                ip6_del_rt(rt, NULL, NULL, NULL);
                                 rt = NULL;
                         } else if (!(rt->rt6i_flags & RTF_EXPIRES)) {
                                 rt->rt6i_expires = expires;
@@ -1319,7 +1321,7 @@ static int __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpad
 
 static void
 addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
-                      unsigned long expires, unsigned flags)
+                      unsigned long expires, u32 flags)
 {
         struct in6_rtmsg rtmsg;
 
@@ -1339,7 +1341,7 @@ addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
         if (dev->type == ARPHRD_SIT && (dev->flags&IFF_POINTOPOINT))
                 rtmsg.rtmsg_flags |= RTF_NONEXTHOP;
 
-        ip6_route_add(&rtmsg, NULL, NULL);
+        ip6_route_add(&rtmsg, NULL, NULL, NULL);
 }
 
 /* Create "default" multicast route to the interface */
@@ -1356,7 +1358,7 @@ static void addrconf_add_mroute(struct net_device *dev)
         rtmsg.rtmsg_ifindex = dev->ifindex;
         rtmsg.rtmsg_flags = RTF_UP;
         rtmsg.rtmsg_type = RTMSG_NEWROUTE;
-        ip6_route_add(&rtmsg, NULL, NULL);
+        ip6_route_add(&rtmsg, NULL, NULL, NULL);
 }
 
 static void sit_route_add(struct net_device *dev)
@@ -1373,7 +1375,7 @@ static void sit_route_add(struct net_device *dev)
         rtmsg.rtmsg_flags       = RTF_UP|RTF_NONEXTHOP;
         rtmsg.rtmsg_ifindex     = dev->ifindex;
 
-        ip6_route_add(&rtmsg, NULL, NULL);
+        ip6_route_add(&rtmsg, NULL, NULL, NULL);
 }
 
 static void addrconf_add_lroute(struct net_device *dev)
@@ -1466,7 +1468,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
                 if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
                         if (rt->rt6i_flags&RTF_EXPIRES) {
                                 if (valid_lft == 0) {
-                                        ip6_del_rt(rt, NULL, NULL);
+                                        ip6_del_rt(rt, NULL, NULL, NULL);
                                         rt = NULL;
                                 } else {
                                         rt->rt6i_expires = rt_expires;
@@ -2228,7 +2230,7 @@ out:
 /*
  *      Duplicate Address Detection
  */
-static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags)
+static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
 {
         struct inet6_dev *idev = ifp->idev;
         struct net_device *dev = idev->dev;
@@ -2621,15 +2623,14 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 }
 
 static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
-                             u32 pid, u32 seq, int event)
+                             u32 pid, u32 seq, int event, unsigned int flags)
 {
         struct ifaddrmsg *ifm;
         struct nlmsghdr  *nlh;
         struct ifa_cacheinfo ci;
         unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*ifm));
-        if (pid) nlh->nlmsg_flags |= NLM_F_MULTI;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
         ifm = NLMSG_DATA(nlh);
         ifm->ifa_family = AF_INET6;
         ifm->ifa_prefixlen = ifa->prefix_len;
@@ -2671,15 +2672,14 @@ rtattr_failure:
 }
 
 static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca,
-                                u32 pid, u32 seq, int event)
+                                u32 pid, u32 seq, int event, u16 flags)
 {
         struct ifaddrmsg *ifm;
         struct nlmsghdr  *nlh;
         struct ifa_cacheinfo ci;
         unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*ifm));
-        if (pid) nlh->nlmsg_flags |= NLM_F_MULTI;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
         ifm = NLMSG_DATA(nlh);
         ifm->ifa_family = AF_INET6;     
         ifm->ifa_prefixlen = 128;
@@ -2708,15 +2708,14 @@ rtattr_failure:
 }
 
 static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca,
-                                u32 pid, u32 seq, int event)
+                                u32 pid, u32 seq, int event, unsigned int flags)
 {
         struct ifaddrmsg *ifm;
         struct nlmsghdr  *nlh;
         struct ifa_cacheinfo ci;
         unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*ifm));
-        if (pid) nlh->nlmsg_flags |= NLM_F_MULTI;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
         ifm = NLMSG_DATA(nlh);
         ifm->ifa_family = AF_INET6;     
         ifm->ifa_prefixlen = 128;
@@ -2785,7 +2784,8 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
                                         continue;
                                 if ((err = inet6_fill_ifaddr(skb, ifa, 
                                     NETLINK_CB(cb->skb).pid, 
-                                    cb->nlh->nlmsg_seq, RTM_NEWADDR)) <= 0)
+                                    cb->nlh->nlmsg_seq, RTM_NEWADDR,
+                                    NLM_F_MULTI)) <= 0)
                                         goto done;
                         }
                         /* temp addr */
@@ -2796,7 +2796,8 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
                                         continue;
                                 if ((err = inet6_fill_ifaddr(skb, ifa, 
                                     NETLINK_CB(cb->skb).pid, 
-                                    cb->nlh->nlmsg_seq, RTM_NEWADDR)) <= 0) 
+                                    cb->nlh->nlmsg_seq, RTM_NEWADDR,
+                                    NLM_F_MULTI)) <= 0) 
                                         goto done;
                         }
 #endif
@@ -2809,7 +2810,8 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
                                         continue;
                                 if ((err = inet6_fill_ifmcaddr(skb, ifmca, 
                                     NETLINK_CB(cb->skb).pid, 
-                                    cb->nlh->nlmsg_seq, RTM_GETMULTICAST)) <= 0)
+                                    cb->nlh->nlmsg_seq, RTM_GETMULTICAST,
+                                    NLM_F_MULTI)) <= 0)
                                         goto done;
                         }
                         break;
@@ -2821,7 +2823,8 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
                                         continue;
                                 if ((err = inet6_fill_ifacaddr(skb, ifaca, 
                                     NETLINK_CB(cb->skb).pid, 
-                                    cb->nlh->nlmsg_seq, RTM_GETANYCAST)) <= 0) 
+                                    cb->nlh->nlmsg_seq, RTM_GETANYCAST,
+                                    NLM_F_MULTI)) <= 0) 
                                         goto done;
                         }
                         break;
@@ -2871,7 +2874,7 @@ static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
                 netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFADDR, ENOBUFS);
                 return;
         }
-        if (inet6_fill_ifaddr(skb, ifa, 0, 0, event) < 0) {
+        if (inet6_fill_ifaddr(skb, ifa, current->pid, 0, event, 0) < 0) {
                 kfree_skb(skb);
                 netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFADDR, EINVAL);
                 return;
@@ -2906,7 +2909,7 @@ static void inline ipv6_store_devconf(struct ipv6_devconf *cnf,
 }
 
 static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev, 
-                             u32 pid, u32 seq, int event)
+                             u32 pid, u32 seq, int event, unsigned int flags)
 {
         struct net_device       *dev = idev->dev;
         __s32                   *array = NULL;
@@ -2917,8 +2920,7 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
         __u32                   mtu = dev->mtu;
         struct ifla_cacheinfo   ci;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*r));
-        if (pid) nlh->nlmsg_flags |= NLM_F_MULTI;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*r), flags);
         r = NLMSG_DATA(nlh);
         r->ifi_family = AF_INET6;
         r->ifi_type = dev->type;
@@ -2985,7 +2987,7 @@ static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
                 if ((idev = in6_dev_get(dev)) == NULL)
                         continue;
                 err = inet6_fill_ifinfo(skb, idev, NETLINK_CB(cb->skb).pid, 
-                                cb->nlh->nlmsg_seq, RTM_NEWLINK);
+                                cb->nlh->nlmsg_seq, RTM_NEWLINK, NLM_F_MULTI);
                 in6_dev_put(idev);
                 if (err <= 0)
                         break;
@@ -3007,7 +3009,7 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
                 netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFINFO, ENOBUFS);
                 return;
         }
-        if (inet6_fill_ifinfo(skb, idev, 0, 0, event) < 0) {
+        if (inet6_fill_ifinfo(skb, idev, current->pid, 0, event, 0) < 0) {
                 kfree_skb(skb);
                 netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFINFO, EINVAL);
                 return;
@@ -3017,18 +3019,15 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
 }
 
 static int inet6_fill_prefix(struct sk_buff *skb, struct inet6_dev *idev,
-                        struct prefix_info *pinfo, u32 pid, u32 seq, int event)
+                        struct prefix_info *pinfo, u32 pid, u32 seq, 
+                        int event, unsigned int flags)
 {
         struct prefixmsg        *pmsg;
         struct nlmsghdr         *nlh;
         unsigned char           *b = skb->tail;
         struct prefix_cacheinfo ci;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*pmsg));
-        
-        if (pid) 
-                nlh->nlmsg_flags |= NLM_F_MULTI;
-        
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*pmsg), flags);
         pmsg = NLMSG_DATA(nlh);
         pmsg->prefix_family = AF_INET6;
         pmsg->prefix_ifindex = idev->dev->ifindex;
@@ -3067,7 +3066,7 @@ static void inet6_prefix_notify(int event, struct inet6_dev *idev,
                 netlink_set_err(rtnl, 0, RTMGRP_IPV6_PREFIX, ENOBUFS);
                 return;
         }
-        if (inet6_fill_prefix(skb, idev, pinfo, 0, 0, event) < 0) {
+        if (inet6_fill_prefix(skb, idev, pinfo, current->pid, 0, event, 0) < 0) {
                 kfree_skb(skb);
                 netlink_set_err(rtnl, 0, RTMGRP_IPV6_PREFIX, EINVAL);
                 return;
@@ -3096,7 +3095,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
         switch (event) {
         case RTM_NEWADDR:
                 dst_hold(&ifp->rt->u.dst);
-                if (ip6_ins_rt(ifp->rt, NULL, NULL))
+                if (ip6_ins_rt(ifp->rt, NULL, NULL, NULL))
                         dst_release(&ifp->rt->u.dst);
                 if (ifp->idev->cnf.forwarding)
                         addrconf_join_anycast(ifp);
@@ -3106,7 +3105,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
                         addrconf_leave_anycast(ifp);
                 addrconf_leave_solict(ifp->idev, &ifp->addr);
                 dst_hold(&ifp->rt->u.dst);
-                if (ip6_del_rt(ifp->rt, NULL, NULL))
+                if (ip6_del_rt(ifp->rt, NULL, NULL, NULL))
                         dst_free(&ifp->rt->u.dst);
                 else
                         dst_release(&ifp->rt->u.dst);
@@ -3439,7 +3438,7 @@ static void addrconf_sysctl_register(struct inet6_dev *idev, struct ipv6_devconf
          * by sysctl and we wouldn't want anyone to change it under our feet
          * (see SIOCSIFNAME).
          */     
-        dev_name = net_sysctl_strdup(dev_name);
+        dev_name = kstrdup(dev_name, GFP_KERNEL);
         if (!dev_name)
             goto free;
 
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index e3ecf626cbf7..986fdfdccbcd 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -339,7 +339,7 @@ static void ah6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
         xfrm_state_put(x);
 }
 
-static int ah6_init_state(struct xfrm_state *x, void *args)
+static int ah6_init_state(struct xfrm_state *x)
 {
         struct ah_data *ahp = NULL;
         struct xfrm_algo_desc *aalg_desc;
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index 5d22ca3cca2e..6b7294047238 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -337,7 +337,7 @@ int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr)
         write_unlock_bh(&idev->lock);
 
         dst_hold(&rt->u.dst);
-        if (ip6_ins_rt(rt, NULL, NULL))
+        if (ip6_ins_rt(rt, NULL, NULL, NULL))
                 dst_release(&rt->u.dst);
 
         addrconf_join_solict(dev, &aca->aca_addr);
@@ -380,7 +380,7 @@ int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr)
         addrconf_leave_solict(idev, &aca->aca_addr);
 
         dst_hold(&aca->aca_rt->u.dst);
-        if (ip6_del_rt(aca->aca_rt, NULL, NULL))
+        if (ip6_del_rt(aca->aca_rt, NULL, NULL, NULL))
                 dst_free(&aca->aca_rt->u.dst);
         else
                 dst_release(&aca->aca_rt->u.dst);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 65b9375df57d..5229365cd8b4 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -353,14 +353,14 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
         err = copied;
 
         /* Reset and regenerate socket error */
-        spin_lock_irq(&sk->sk_error_queue.lock);
+        spin_lock_bh(&sk->sk_error_queue.lock);
         sk->sk_err = 0;
         if ((skb2 = skb_peek(&sk->sk_error_queue)) != NULL) {
                 sk->sk_err = SKB_EXT_ERR(skb2)->ee.ee_errno;
-                spin_unlock_irq(&sk->sk_error_queue.lock);
+                spin_unlock_bh(&sk->sk_error_queue.lock);
                 sk->sk_error_report(sk);
         } else {
-                spin_unlock_irq(&sk->sk_error_queue.lock);
+                spin_unlock_bh(&sk->sk_error_queue.lock);
         }
 
 out_free_skb:   
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index be7095d6babe..324db62515a2 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -296,7 +296,7 @@ static void esp6_destroy(struct xfrm_state *x)
         kfree(esp);
 }
 
-static int esp6_init_state(struct xfrm_state *x, void *args)
+static int esp6_init_state(struct xfrm_state *x)
 {
         struct esp_data *esp = NULL;
 
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 8e0f569b883e..ff3ec9822e36 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -277,8 +277,8 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
 {
         struct inet6_dev *idev = NULL;
         struct ipv6hdr *hdr = skb->nh.ipv6h;
-        struct sock *sk = icmpv6_socket->sk;
-        struct ipv6_pinfo *np = inet6_sk(sk);
+        struct sock *sk;
+        struct ipv6_pinfo *np;
         struct in6_addr *saddr = NULL;
         struct dst_entry *dst;
         struct icmp6hdr tmp_hdr;
@@ -358,6 +358,9 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
         if (icmpv6_xmit_lock())
                 return;
 
+        sk = icmpv6_socket->sk;
+        np = inet6_sk(sk);
+
         if (!icmpv6_xrlim_allow(sk, type, &fl))
                 goto out;
 
@@ -423,9 +426,9 @@ out:
 
 static void icmpv6_echo_reply(struct sk_buff *skb)
 {
-        struct sock *sk = icmpv6_socket->sk;
+        struct sock *sk;
         struct inet6_dev *idev;
-        struct ipv6_pinfo *np = inet6_sk(sk);
+        struct ipv6_pinfo *np;
         struct in6_addr *saddr = NULL;
         struct icmp6hdr *icmph = (struct icmp6hdr *) skb->h.raw;
         struct icmp6hdr tmp_hdr;
@@ -454,6 +457,9 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
         if (icmpv6_xmit_lock())
                 return;
 
+        sk = icmpv6_socket->sk;
+        np = inet6_sk(sk);
+
         if (!fl.oif && ipv6_addr_is_multicast(&fl.fl6_dst))
                 fl.oif = np->mcast_oif;
 
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 405740b75abb..1b354aa97934 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -394,7 +394,7 @@ insert_above:
  */
 
 static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
-    struct nlmsghdr *nlh)
+                struct nlmsghdr *nlh,  struct netlink_skb_parms *req)
 {
         struct rt6_info *iter = NULL;
         struct rt6_info **ins;
@@ -449,7 +449,7 @@ out:
         *ins = rt;
         rt->rt6i_node = fn;
         atomic_inc(&rt->rt6i_ref);
-        inet6_rt_notify(RTM_NEWROUTE, rt, nlh);
+        inet6_rt_notify(RTM_NEWROUTE, rt, nlh, req);
         rt6_stats.fib_rt_entries++;
 
         if ((fn->fn_flags & RTN_RTINFO) == 0) {
@@ -479,7 +479,8 @@ void fib6_force_start_gc(void)
  *      with source addr info in sub-trees
  */
 
-int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int fib6_add(struct fib6_node *root, struct rt6_info *rt, 
+                struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
         struct fib6_node *fn;
         int err = -ENOMEM;
@@ -552,7 +553,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nlmsghdr *nlh,
         }
 #endif
 
-        err = fib6_add_rt2node(fn, rt, nlh);
+        err = fib6_add_rt2node(fn, rt, nlh, req);
 
         if (err == 0) {
                 fib6_start_gc(rt);
@@ -859,7 +860,7 @@ static struct fib6_node * fib6_repair_tree(struct fib6_node *fn)
 }
 
 static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
-    struct nlmsghdr *nlh, void *_rtattr)
+    struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
         struct fib6_walker_t *w;
         struct rt6_info *rt = *rtp;
@@ -915,11 +916,11 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
                 if (atomic_read(&rt->rt6i_ref) != 1) BUG();
         }
 
-        inet6_rt_notify(RTM_DELROUTE, rt, nlh);
+        inet6_rt_notify(RTM_DELROUTE, rt, nlh, req);
         rt6_release(rt);
 }
 
-int fib6_del(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int fib6_del(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
         struct fib6_node *fn = rt->rt6i_node;
         struct rt6_info **rtp;
@@ -944,7 +945,7 @@ int fib6_del(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
 
         for (rtp = &fn->leaf; *rtp; rtp = &(*rtp)->u.next) {
                 if (*rtp == rt) {
-                        fib6_del_route(fn, rtp, nlh, _rtattr);
+                        fib6_del_route(fn, rtp, nlh, _rtattr, req);
                         return 0;
                 }
         }
@@ -1073,7 +1074,7 @@ static int fib6_clean_node(struct fib6_walker_t *w)
                 res = c->func(rt, c->arg);
                 if (res < 0) {
                         w->leaf = rt;
-                        res = fib6_del(rt, NULL, NULL);
+                        res = fib6_del(rt, NULL, NULL, NULL);
                         if (res) {
 #if RT6_DEBUG >= 2
                                 printk(KERN_DEBUG "fib6_clean_node: del failed: rt=%p@%p err=%d\n", rt, rt->rt6i_node, res);
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index a93f6dc51979..0e5f7499debb 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -535,10 +535,12 @@ release:
                 if (err)
                         goto done;
 
-                /* Do not check for fault */
-                if (!freq.flr_label)
-                        copy_to_user(&((struct in6_flowlabel_req __user *) optval)->flr_label,
-                                     &fl->label, sizeof(fl->label));
+                if (!freq.flr_label) {
+                        if (copy_to_user(&((struct in6_flowlabel_req __user *) optval)->flr_label,
+                                         &fl->label, sizeof(fl->label))) {
+                                /* Intentionally ignore fault. */
+                        }
+                }
 
                 sfl1->fl = fl;
                 sfl1->next = np->ipv6_fl_list;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index b78a53586804..06e7cdaeedc5 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -484,9 +484,6 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
         to->nf_bridge = from->nf_bridge;
         nf_bridge_get(to->nf_bridge);
 #endif
-#ifdef CONFIG_NETFILTER_DEBUG
-        to->nf_debug = from->nf_debug;
-#endif
 #endif
 }
 
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 3b1c9fa184ae..ba3b0c267f75 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -882,6 +882,7 @@ ip6ip6_tnl_change(struct ip6_tnl *t, struct ip6_tnl_parm *p)
         t->parms.hop_limit = p->hop_limit;
         t->parms.encap_limit = p->encap_limit;
         t->parms.flowinfo = p->flowinfo;
+        t->parms.link = p->link;
         ip6ip6_tnl_link_config(t);
         return 0;
 }
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 6cde5310cd76..423feb46ccc0 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -234,14 +234,9 @@ static struct xfrm_state *ipcomp6_tunnel_create(struct xfrm_state *x)
         t->props.mode = 1;
         memcpy(t->props.saddr.a6, x->props.saddr.a6, sizeof(struct in6_addr));
 
-        t->type = xfrm_get_type(IPPROTO_IPV6, t->props.family);
-        if (t->type == NULL)
+        if (xfrm_init_state(t))
                 goto error;
 
-        if (t->type->init_state(t, NULL))
-                goto error;
-
-        t->km.state = XFRM_STATE_VALID;
         atomic_set(&t->tunnel_users, 1);
 
 out:
@@ -420,7 +415,7 @@ static void ipcomp6_destroy(struct xfrm_state *x)
         xfrm6_tunnel_free_spi((xfrm_address_t *)&x->props.saddr);
 }
 
-static int ipcomp6_init_state(struct xfrm_state *x, void *args)
+static int ipcomp6_init_state(struct xfrm_state *x)
 {
         int err;
         struct ipcomp_data *ipcd;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 279ab86be662..f3ef4c38d315 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -423,11 +423,12 @@ done:
                         psin6 = (struct sockaddr_in6 *)&greqs.gsr_group;
                         retv = ipv6_sock_mc_join(sk, greqs.gsr_interface,
                                 &psin6->sin6_addr);
-                        if (retv)
+                        /* prior join w/ different source is ok */
+                        if (retv && retv != -EADDRINUSE)
                                 break;
                         omode = MCAST_INCLUDE;
                         add = 1;
-                } else /*IP_DROP_SOURCE_MEMBERSHIP */ {
+                } else /* MCAST_LEAVE_SOURCE_GROUP */ {
                         omode = MCAST_INCLUDE;
                         add = 0;
                 }
diff --git a/net/ipv6/ipv6_syms.c b/net/ipv6/ipv6_syms.c
index 2f4c91ddc9a3..5ade5a5d1990 100644
--- a/net/ipv6/ipv6_syms.c
+++ b/net/ipv6/ipv6_syms.c
@@ -37,5 +37,4 @@ EXPORT_SYMBOL(in6_dev_finish_destroy);
 EXPORT_SYMBOL(xfrm6_rcv);
 #endif
 EXPORT_SYMBOL(rt6_lookup);
-EXPORT_SYMBOL(fl6_sock_lookup);
 EXPORT_SYMBOL(ipv6_push_nfrag_opts);
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 393b6e6f50a9..562fcd14fdea 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -188,6 +188,16 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, struct in6_addr *addr)
         if (!ipv6_addr_is_multicast(addr))
                 return -EINVAL;
 
+        read_lock_bh(&ipv6_sk_mc_lock);
+        for (mc_lst=np->ipv6_mc_list; mc_lst; mc_lst=mc_lst->next) {
+                if ((ifindex == 0 || mc_lst->ifindex == ifindex) &&
+                    ipv6_addr_equal(&mc_lst->addr, addr)) {
+                        read_unlock_bh(&ipv6_sk_mc_lock);
+                        return -EADDRINUSE;
+                }
+        }
+        read_unlock_bh(&ipv6_sk_mc_lock);
+
         mc_lst = sock_kmalloc(sk, sizeof(struct ipv6_mc_socklist), GFP_KERNEL);
 
         if (mc_lst == NULL)
@@ -349,6 +359,7 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
         struct ipv6_pinfo *inet6 = inet6_sk(sk);
         struct ip6_sf_socklist *psl;
         int i, j, rv;
+        int leavegroup = 0;
         int err;
 
         if (pgsr->gsr_group.ss_family != AF_INET6 ||
@@ -368,6 +379,7 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
 
         err = -EADDRNOTAVAIL;
 
+        read_lock_bh(&ipv6_sk_mc_lock);
         for (pmc=inet6->ipv6_mc_list; pmc; pmc=pmc->next) {
                 if (pgsr->gsr_interface && pmc->ifindex != pgsr->gsr_interface)
                         continue;
@@ -401,6 +413,12 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
                 if (rv)         /* source not found */
                         goto done;
 
+                /* special case - (INCLUDE, empty) == LEAVE_GROUP */
+                if (psl->sl_count == 1 && omode == MCAST_INCLUDE) {
+                        leavegroup = 1;
+                        goto done;
+                }
+
                 /* update the interface filter */
                 ip6_mc_del_src(idev, group, omode, 1, source, 1);
 
@@ -453,9 +471,12 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
         /* update the interface list */
         ip6_mc_add_src(idev, group, omode, 1, source, 1);
 done:
+        read_unlock_bh(&ipv6_sk_mc_lock);
         read_unlock_bh(&idev->lock);
         in6_dev_put(idev);
         dev_put(dev);
+        if (leavegroup)
+                return ipv6_sock_mc_drop(sk, pgsr->gsr_interface, group);
         return err;
 }
 
@@ -1280,15 +1301,6 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
                 return NULL;
 
         skb_reserve(skb, LL_RESERVED_SPACE(dev));
-        if (dev->hard_header) {
-                unsigned char ha[MAX_ADDR_LEN];
-
-                ndisc_mc_map(&mld2_all_mcr, ha, dev, 1);
-                if (dev->hard_header(skb, dev, ETH_P_IPV6,ha,NULL,size) < 0) {
-                        kfree_skb(skb);
-                        return NULL;
-                }
-        }
 
         if (ipv6_get_lladdr(dev, &addr_buf)) {
                 /* <draft-ietf-magma-mld-source-05.txt>:
@@ -1312,6 +1324,30 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
         return skb;
 }
 
+static inline int mld_dev_queue_xmit2(struct sk_buff *skb)
+{
+        struct net_device *dev = skb->dev;
+
+        if (dev->hard_header) {
+                unsigned char ha[MAX_ADDR_LEN];
+                int err;
+
+                ndisc_mc_map(&skb->nh.ipv6h->daddr, ha, dev, 1);
+                err = dev->hard_header(skb, dev, ETH_P_IPV6, ha, NULL, skb->len);
+                if (err < 0) {
+                        kfree_skb(skb);
+                        return err;
+                }
+        }
+        return dev_queue_xmit(skb);
+}
+
+static inline int mld_dev_queue_xmit(struct sk_buff *skb)
+{
+        return NF_HOOK(PF_INET6, NF_IP6_POST_ROUTING, skb, NULL, skb->dev,
+                       mld_dev_queue_xmit2);
+}
+
 static void mld_sendpack(struct sk_buff *skb)
 {
         struct ipv6hdr *pip6 = skb->nh.ipv6h;
@@ -1329,7 +1365,7 @@ static void mld_sendpack(struct sk_buff *skb)
         pmr->csum = csum_ipv6_magic(&pip6->saddr, &pip6->daddr, mldlen,
                 IPPROTO_ICMPV6, csum_partial(skb->h.raw, mldlen, 0));
         err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
-                dev_queue_xmit);
+                mld_dev_queue_xmit);
         if (!err) {
                 ICMP6_INC_STATS(idev,ICMP6_MIB_OUTMSGS);
                 IP6_INC_STATS(IPSTATS_MIB_OUTMCASTPKTS);
@@ -1635,12 +1671,6 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         }
 
         skb_reserve(skb, LL_RESERVED_SPACE(dev));
-        if (dev->hard_header) {
-                unsigned char ha[MAX_ADDR_LEN];
-                ndisc_mc_map(snd_addr, ha, dev, 1);
-                if (dev->hard_header(skb, dev, ETH_P_IPV6, ha, NULL, full_len) < 0)
-                        goto out;
-        }
 
         if (ipv6_get_lladdr(dev, &addr_buf)) {
                 /* <draft-ietf-magma-mld-source-05.txt>:
@@ -1668,7 +1698,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         idev = in6_dev_get(skb->dev);
 
         err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
-                dev_queue_xmit);
+                mld_dev_queue_xmit);
         if (!err) {
                 if (type == ICMPV6_MGM_REDUCTION)
                         ICMP6_INC_STATS(idev, ICMP6_MIB_OUTGROUPMEMBREDUCTIONS);
@@ -1682,10 +1712,6 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         if (likely(idev != NULL))
                 in6_dev_put(idev);
         return;
-
-out:
-        IP6_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
-        kfree_skb(skb);
 }
 
 static int ip6_mc_del1_src(struct ifmcaddr6 *pmc, int sfmode,
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 7c291f4e9edc..7ae72d4c9bd2 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -955,7 +955,7 @@ static void ndisc_recv_na(struct sk_buff *skb)
                         struct rt6_info *rt;
                         rt = rt6_get_dflt_router(saddr, dev);
                         if (rt)
-                                ip6_del_rt(rt, NULL, NULL);
+                                ip6_del_rt(rt, NULL, NULL, NULL);
                 }
 
 out:
@@ -1096,7 +1096,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 
         if (rt && lifetime == 0) {
                 neigh_clone(neigh);
-                ip6_del_rt(rt, NULL, NULL);
+                ip6_del_rt(rt, NULL, NULL, NULL);
                 rt = NULL;
         }
 
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index c735276fdd5f..73034511c8db 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -71,7 +71,6 @@ static DECLARE_MUTEX(ip6t_mutex);
 /* Must have mutex */
 #define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
 #define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
 #if 0
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index bfc3d0185d19..c44685e391b7 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -366,8 +366,6 @@ ip6t_log_packet(unsigned int hooknum,
                 const char *level_string,
                 const char *prefix)
 {
-        struct ipv6hdr *ipv6h = skb->nh.ipv6h;
-
         spin_lock_bh(&log_lock);
         printk(level_string);
         printk("%sIN=%s OUT=%s ",
@@ -377,39 +375,25 @@ ip6t_log_packet(unsigned int hooknum,
         if (in && !out) {
                 /* MAC logging for input chain only. */
                 printk("MAC=");
-                if (skb->dev && skb->dev->hard_header_len && skb->mac.raw != (void*)ipv6h) {
-                        if (skb->dev->type != ARPHRD_SIT){
-                          int i;
-                          unsigned char *p = skb->mac.raw;
-                          for (i = 0; i < skb->dev->hard_header_len; i++,p++)
-                                printk("%02x%c", *p,
-                                        i==skb->dev->hard_header_len - 1
-                                        ? ' ':':');
-                        } else {
-                          int i;
-                          unsigned char *p = skb->mac.raw;
-                          if ( p - (ETH_ALEN*2+2) > skb->head ){
-                            p -= (ETH_ALEN+2);
-                            for (i = 0; i < (ETH_ALEN); i++,p++)
-                                printk("%02x%s", *p,
-                                        i == ETH_ALEN-1 ? "->" : ":");
-                            p -= (ETH_ALEN*2);
-                            for (i = 0; i < (ETH_ALEN); i++,p++)
-                                printk("%02x%c", *p,
-                                        i == ETH_ALEN-1 ? ' ' : ':');
-                          }
-                          
-                          if ((skb->dev->addr_len == 4) &&
-                              skb->dev->hard_header_len > 20){
-                            printk("TUNNEL=");
-                            p = skb->mac.raw + 12;
-                            for (i = 0; i < 4; i++,p++)
-                                printk("%3d%s", *p,
-                                        i == 3 ? "->" : ".");
-                            for (i = 0; i < 4; i++,p++)
-                                printk("%3d%c", *p,
-                                        i == 3 ? ' ' : '.');
-                          }
+                if (skb->dev && skb->dev->hard_header_len &&
+                    skb->mac.raw != skb->nh.raw) {
+                        unsigned char *p = skb->mac.raw;
+                        int i;
+
+                        if (skb->dev->type == ARPHRD_SIT &&
+                            (p -= ETH_HLEN) < skb->head)
+                                p = NULL;
+
+                        if (p != NULL)
+                                for (i = 0; i < skb->dev->hard_header_len; i++)
+                                        printk("%02x", p[i]);
+                        printk(" ");
+
+                        if (skb->dev->type == ARPHRD_SIT) {
+                                struct iphdr *iph = (struct iphdr *)skb->mac.raw;
+                                printk("TUNNEL=%u.%u.%u.%u->%u.%u.%u.%u ",
+                                       NIPQUAD(iph->saddr),
+                                       NIPQUAD(iph->daddr));
                         }
                 } else
                         printk(" ");
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index 71407beaf790..c2982efd14af 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -129,13 +129,15 @@ static struct nf_hook_ops ip6t_ops[] = {
           .hook = ip6t_hook, 
           .pf = PF_INET6,
           .hooknum = NF_IP6_PRE_ROUTING,
-          .priority = NF_IP6_PRI_FIRST
+          .priority = NF_IP6_PRI_FIRST,
+          .owner = THIS_MODULE,
         },
         {
           .hook = ip6t_hook, 
           .pf = PF_INET6, 
           .hooknum = NF_IP6_LOCAL_OUT,
-          .priority = NF_IP6_PRI_FIRST
+          .priority = NF_IP6_PRI_FIRST,
+          .owner = THIS_MODULE,
         },
 };
 
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 617645bc5ed6..e2b848ec9851 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -434,12 +434,12 @@ csum_copy_err:
         /* Clear queue. */
         if (flags&MSG_PEEK) {
                 int clear = 0;
-                spin_lock_irq(&sk->sk_receive_queue.lock);
+                spin_lock_bh(&sk->sk_receive_queue.lock);
                 if (skb == skb_peek(&sk->sk_receive_queue)) {
                         __skb_unlink(skb, &sk->sk_receive_queue);
                         clear = 1;
                 }
-                spin_unlock_irq(&sk->sk_receive_queue.lock);
+                spin_unlock_bh(&sk->sk_receive_queue.lock);
                 if (clear)
                         kfree_skb(skb);
         }
@@ -971,11 +971,11 @@ static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
                         struct sk_buff *skb;
                         int amount = 0;
 
-                        spin_lock_irq(&sk->sk_receive_queue.lock);
+                        spin_lock_bh(&sk->sk_receive_queue.lock);
                         skb = skb_peek(&sk->sk_receive_queue);
                         if (skb != NULL)
                                 amount = skb->tail - skb->h.raw;
-                        spin_unlock_irq(&sk->sk_receive_queue.lock);
+                        spin_unlock_bh(&sk->sk_receive_queue.lock);
                         return put_user(amount, (int __user *)arg);
                 }
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 3bf8a0254f81..878789b3122d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -384,12 +384,13 @@ struct rt6_info *rt6_lookup(struct in6_addr *daddr, struct in6_addr *saddr,
    be destroyed.
  */
 
-int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh,
+                void *_rtattr, struct netlink_skb_parms *req)
 {
         int err;
 
         write_lock_bh(&rt6_lock);
-        err = fib6_add(&ip6_routing_table, rt, nlh, _rtattr);
+        err = fib6_add(&ip6_routing_table, rt, nlh, _rtattr, req);
         write_unlock_bh(&rt6_lock);
 
         return err;
@@ -400,7 +401,7 @@ int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
  */
 
 static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
-                                struct in6_addr *saddr)
+                                struct in6_addr *saddr, struct netlink_skb_parms *req)
 {
         int err;
         struct rt6_info *rt;
@@ -432,7 +433,7 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
 
                 dst_hold(&rt->u.dst);
 
-                err = ip6_ins_rt(rt, NULL, NULL);
+                err = ip6_ins_rt(rt, NULL, NULL, req);
                 if (err == 0)
                         return rt;
 
@@ -491,7 +492,8 @@ restart:
                 read_unlock_bh(&rt6_lock);
 
                 nrt = rt6_cow(rt, &skb->nh.ipv6h->daddr,
-                              &skb->nh.ipv6h->saddr);
+                              &skb->nh.ipv6h->saddr,
+                              &NETLINK_CB(skb));
 
                 dst_release(&rt->u.dst);
                 rt = nrt;
@@ -551,7 +553,7 @@ restart:
                 dst_hold(&rt->u.dst);
                 read_unlock_bh(&rt6_lock);
 
-                nrt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src);
+                nrt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src, NULL);
 
                 dst_release(&rt->u.dst);
                 rt = nrt;
@@ -598,7 +600,7 @@ static struct dst_entry *ip6_negative_advice(struct dst_entry *dst)
 
         if (rt) {
                 if (rt->rt6i_flags & RTF_CACHE)
-                        ip6_del_rt(rt, NULL, NULL);
+                        ip6_del_rt(rt, NULL, NULL, NULL);
                 else
                         dst_release(dst);
         }
@@ -787,7 +789,8 @@ int ipv6_get_hoplimit(struct net_device *dev)
  *
  */
 
-int ip6_route_add(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_route_add(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, 
+                void *_rtattr, struct netlink_skb_parms *req)
 {
         int err;
         struct rtmsg *r;
@@ -974,7 +977,7 @@ install_route:
                 rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dst_mtu(&rt->u.dst));
         rt->u.dst.dev = dev;
         rt->rt6i_idev = idev;
-        return ip6_ins_rt(rt, nlh, _rtattr);
+        return ip6_ins_rt(rt, nlh, _rtattr, req);
 
 out:
         if (dev)
@@ -986,7 +989,7 @@ out:
         return err;
 }
 
-int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
         int err;
 
@@ -994,7 +997,7 @@ int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
 
         rt6_reset_dflt_pointer(NULL);
 
-        err = fib6_del(rt, nlh, _rtattr);
+        err = fib6_del(rt, nlh, _rtattr, req);
         dst_release(&rt->u.dst);
 
         write_unlock_bh(&rt6_lock);
@@ -1002,7 +1005,7 @@ int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
         return err;
 }
 
-static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr)
+static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
         struct fib6_node *fn;
         struct rt6_info *rt;
@@ -1029,7 +1032,7 @@ static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_r
                         dst_hold(&rt->u.dst);
                         read_unlock_bh(&rt6_lock);
 
-                        return ip6_del_rt(rt, nlh, _rtattr);
+                        return ip6_del_rt(rt, nlh, _rtattr, req);
                 }
         }
         read_unlock_bh(&rt6_lock);
@@ -1136,11 +1139,11 @@ source_ok:
         nrt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(neigh->dev);
         nrt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dst_mtu(&nrt->u.dst));
 
-        if (ip6_ins_rt(nrt, NULL, NULL))
+        if (ip6_ins_rt(nrt, NULL, NULL, NULL))
                 goto out;
 
         if (rt->rt6i_flags&RTF_CACHE) {
-                ip6_del_rt(rt, NULL, NULL);
+                ip6_del_rt(rt, NULL, NULL, NULL);
                 return;
         }
 
@@ -1204,7 +1207,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
            2. It is gatewayed route or NONEXTHOP route. Action: clone it.
          */
         if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
-                nrt = rt6_cow(rt, daddr, saddr);
+                nrt = rt6_cow(rt, daddr, saddr, NULL);
                 if (!nrt->u.dst.error) {
                         nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
                         if (allfrag)
@@ -1232,7 +1235,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
                 nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
                 if (allfrag)
                         nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
-                ip6_ins_rt(nrt, NULL, NULL);
+                ip6_ins_rt(nrt, NULL, NULL, NULL);
         }
 
 out:
@@ -1305,7 +1308,7 @@ struct rt6_info *rt6_add_dflt_router(struct in6_addr *gwaddr,
 
         rtmsg.rtmsg_ifindex = dev->ifindex;
 
-        ip6_route_add(&rtmsg, NULL, NULL);
+        ip6_route_add(&rtmsg, NULL, NULL, NULL);
         return rt6_get_dflt_router(gwaddr, dev);
 }
 
@@ -1323,7 +1326,7 @@ restart:
 
                         read_unlock_bh(&rt6_lock);
 
-                        ip6_del_rt(rt, NULL, NULL);
+                        ip6_del_rt(rt, NULL, NULL, NULL);
 
                         goto restart;
                 }
@@ -1349,10 +1352,10 @@ int ipv6_route_ioctl(unsigned int cmd, void __user *arg)
                 rtnl_lock();
                 switch (cmd) {
                 case SIOCADDRT:
-                        err = ip6_route_add(&rtmsg, NULL, NULL);
+                        err = ip6_route_add(&rtmsg, NULL, NULL, NULL);
                         break;
                 case SIOCDELRT:
-                        err = ip6_route_del(&rtmsg, NULL, NULL);
+                        err = ip6_route_del(&rtmsg, NULL, NULL, NULL);
                         break;
                 default:
                         err = -EINVAL;
@@ -1546,7 +1549,7 @@ int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
         if (inet6_rtm_to_rtmsg(r, arg, &rtmsg))
                 return -EINVAL;
-        return ip6_route_del(&rtmsg, nlh, arg);
+        return ip6_route_del(&rtmsg, nlh, arg, &NETLINK_CB(skb));
 }
 
 int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
@@ -1556,7 +1559,7 @@ int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
         if (inet6_rtm_to_rtmsg(r, arg, &rtmsg))
                 return -EINVAL;
-        return ip6_route_add(&rtmsg, nlh, arg);
+        return ip6_route_add(&rtmsg, nlh, arg, &NETLINK_CB(skb));
 }
 
 struct rt6_rtnl_dump_arg
@@ -1566,11 +1569,9 @@ struct rt6_rtnl_dump_arg
 };
 
 static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
-                         struct in6_addr *dst,
-                         struct in6_addr *src,
-                         int iif,
-                         int type, u32 pid, u32 seq,
-                         struct nlmsghdr *in_nlh, int prefix)
+                         struct in6_addr *dst, struct in6_addr *src,
+                         int iif, int type, u32 pid, u32 seq,
+                         int prefix, unsigned int flags)
 {
         struct rtmsg *rtm;
         struct nlmsghdr  *nlh;
@@ -1584,11 +1585,7 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
                 }
         }
 
-        if (!pid && in_nlh) {
-                pid = in_nlh->nlmsg_pid;
-        }
-
-        nlh = NLMSG_PUT(skb, pid, seq, type, sizeof(*rtm));
+        nlh = NLMSG_NEW(skb, pid, seq, type, sizeof(*rtm), flags);
         rtm = NLMSG_DATA(nlh);
         rtm->rtm_family = AF_INET6;
         rtm->rtm_dst_len = rt->rt6i_dst.plen;
@@ -1674,7 +1671,7 @@ static int rt6_dump_route(struct rt6_info *rt, void *p_arg)
 
         return rt6_fill_node(arg->skb, rt, NULL, NULL, 0, RTM_NEWROUTE,
                      NETLINK_CB(arg->cb->skb).pid, arg->cb->nlh->nlmsg_seq,
-                     NULL, prefix);
+                     prefix, NLM_F_MULTI);
 }
 
 static int fib6_dump_node(struct fib6_walker_t *w)
@@ -1822,7 +1819,7 @@ int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
                             &fl.fl6_dst, &fl.fl6_src,
                             iif,
                             RTM_NEWROUTE, NETLINK_CB(in_skb).pid,
-                            nlh->nlmsg_seq, nlh, 0);
+                            nlh->nlmsg_seq, 0, 0);
         if (err < 0) {
                 err = -EMSGSIZE;
                 goto out_free;
@@ -1838,17 +1835,25 @@ out_free:
         goto out;       
 }
 
-void inet6_rt_notify(int event, struct rt6_info *rt, struct nlmsghdr *nlh)
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nlmsghdr *nlh, 
+                        struct netlink_skb_parms *req)
 {
         struct sk_buff *skb;
         int size = NLMSG_SPACE(sizeof(struct rtmsg)+256);
+        u32 pid = current->pid;
+        u32 seq = 0;
 
+        if (req)
+                pid = req->pid;
+        if (nlh)
+                seq = nlh->nlmsg_seq;
+        
         skb = alloc_skb(size, gfp_any());
         if (!skb) {
                 netlink_set_err(rtnl, 0, RTMGRP_IPV6_ROUTE, ENOBUFS);
                 return;
         }
-        if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, 0, 0, nlh, 0) < 0) {
+        if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, pid, seq, 0, 0) < 0) {
                 kfree_skb(skb);
                 netlink_set_err(rtnl, 0, RTMGRP_IPV6_ROUTE, EINVAL);
                 return;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 0f69e800a0ad..9dac7fdf4726 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -65,7 +65,7 @@
 #include <linux/seq_file.h>
 
 static void     tcp_v6_send_reset(struct sk_buff *skb);
-static void     tcp_v6_or_send_ack(struct sk_buff *skb, struct open_request *req);
+static void     tcp_v6_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req);
 static void     tcp_v6_send_check(struct sock *sk, struct tcphdr *th, int len, 
                                   struct sk_buff *skb);
 
@@ -394,24 +394,26 @@ static u32 tcp_v6_synq_hash(struct in6_addr *raddr, u16 rport, u32 rnd)
         return c & (TCP_SYNQ_HSIZE - 1);
 }
 
-static struct open_request *tcp_v6_search_req(struct tcp_sock *tp,
-                                              struct open_request ***prevp,
+static struct request_sock *tcp_v6_search_req(struct tcp_sock *tp,
+                                              struct request_sock ***prevp,
                                               __u16 rport,
                                               struct in6_addr *raddr,
                                               struct in6_addr *laddr,
                                               int iif)
 {
-        struct tcp_listen_opt *lopt = tp->listen_opt;
-        struct open_request *req, **prev;  
+        struct listen_sock *lopt = tp->accept_queue.listen_opt;
+        struct request_sock *req, **prev;  
 
         for (prev = &lopt->syn_table[tcp_v6_synq_hash(raddr, rport, lopt->hash_rnd)];
              (req = *prev) != NULL;
              prev = &req->dl_next) {
-                if (req->rmt_port == rport &&
-                    req->class->family == AF_INET6 &&
-                    ipv6_addr_equal(&req->af.v6_req.rmt_addr, raddr) &&
-                    ipv6_addr_equal(&req->af.v6_req.loc_addr, laddr) &&
-                    (!req->af.v6_req.iif || req->af.v6_req.iif == iif)) {
+                const struct tcp6_request_sock *treq = tcp6_rsk(req);
+
+                if (inet_rsk(req)->rmt_port == rport &&
+                    req->rsk_ops->family == AF_INET6 &&
+                    ipv6_addr_equal(&treq->rmt_addr, raddr) &&
+                    ipv6_addr_equal(&treq->loc_addr, laddr) &&
+                    (!treq->iif || treq->iif == iif)) {
                         BUG_TRAP(req->sk == NULL);
                         *prevp = prev;
                         return req;
@@ -906,9 +908,9 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 
         icmpv6_err_convert(type, code, &err);
 
-        /* Might be for an open_request */
+        /* Might be for an request_sock */
         switch (sk->sk_state) {
-                struct open_request *req, **prev;
+                struct request_sock *req, **prev;
         case TCP_LISTEN:
                 if (sock_owned_by_user(sk))
                         goto out;
@@ -923,7 +925,7 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
                  */
                 BUG_TRAP(req->sk == NULL);
 
-                if (seq != req->snt_isn) {
+                if (seq != tcp_rsk(req)->snt_isn) {
                         NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
                         goto out;
                 }
@@ -957,9 +959,10 @@ out:
 }
 
 
-static int tcp_v6_send_synack(struct sock *sk, struct open_request *req,
+static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
                               struct dst_entry *dst)
 {
+        struct tcp6_request_sock *treq = tcp6_rsk(req);
         struct ipv6_pinfo *np = inet6_sk(sk);
         struct sk_buff * skb;
         struct ipv6_txoptions *opt = NULL;
@@ -969,19 +972,19 @@ static int tcp_v6_send_synack(struct sock *sk, struct open_request *req,
 
         memset(&fl, 0, sizeof(fl));
         fl.proto = IPPROTO_TCP;
-        ipv6_addr_copy(&fl.fl6_dst, &req->af.v6_req.rmt_addr);
-        ipv6_addr_copy(&fl.fl6_src, &req->af.v6_req.loc_addr);
+        ipv6_addr_copy(&fl.fl6_dst, &treq->rmt_addr);
+        ipv6_addr_copy(&fl.fl6_src, &treq->loc_addr);
         fl.fl6_flowlabel = 0;
-        fl.oif = req->af.v6_req.iif;
-        fl.fl_ip_dport = req->rmt_port;
+        fl.oif = treq->iif;
+        fl.fl_ip_dport = inet_rsk(req)->rmt_port;
         fl.fl_ip_sport = inet_sk(sk)->sport;
 
         if (dst == NULL) {
                 opt = np->opt;
                 if (opt == NULL &&
                     np->rxopt.bits.srcrt == 2 &&
-                    req->af.v6_req.pktopts) {
-                        struct sk_buff *pktopts = req->af.v6_req.pktopts;
+                    treq->pktopts) {
+                        struct sk_buff *pktopts = treq->pktopts;
                         struct inet6_skb_parm *rxopt = IP6CB(pktopts);
                         if (rxopt->srcrt)
                                 opt = ipv6_invert_rthdr(sk, (struct ipv6_rt_hdr*)(pktopts->nh.raw + rxopt->srcrt));
@@ -1008,10 +1011,10 @@ static int tcp_v6_send_synack(struct sock *sk, struct open_request *req,
                 struct tcphdr *th = skb->h.th;
 
                 th->check = tcp_v6_check(th, skb->len,
-                                         &req->af.v6_req.loc_addr, &req->af.v6_req.rmt_addr,
+                                         &treq->loc_addr, &treq->rmt_addr,
                                          csum_partial((char *)th, skb->len, skb->csum));
 
-                ipv6_addr_copy(&fl.fl6_dst, &req->af.v6_req.rmt_addr);
+                ipv6_addr_copy(&fl.fl6_dst, &treq->rmt_addr);
                 err = ip6_xmit(sk, skb, &fl, opt, 0);
                 if (err == NET_XMIT_CN)
                         err = 0;
@@ -1024,17 +1027,18 @@ done:
         return err;
 }
 
-static void tcp_v6_or_free(struct open_request *req)
+static void tcp_v6_reqsk_destructor(struct request_sock *req)
 {
-        if (req->af.v6_req.pktopts)
-                kfree_skb(req->af.v6_req.pktopts);
+        if (tcp6_rsk(req)->pktopts)
+                kfree_skb(tcp6_rsk(req)->pktopts);
 }
 
-static struct or_calltable or_ipv6 = {
+static struct request_sock_ops tcp6_request_sock_ops = {
         .family         =       AF_INET6,
+        .obj_size       =       sizeof(struct tcp6_request_sock),
         .rtx_syn_ack    =       tcp_v6_send_synack,
-        .send_ack       =       tcp_v6_or_send_ack,
-        .destructor     =       tcp_v6_or_free,
+        .send_ack       =       tcp_v6_reqsk_send_ack,
+        .destructor     =       tcp_v6_reqsk_destructor,
         .send_reset     =       tcp_v6_send_reset
 };
 
@@ -1219,15 +1223,15 @@ static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb)
         tcp_tw_put(tw);
 }
 
-static void tcp_v6_or_send_ack(struct sk_buff *skb, struct open_request *req)
+static void tcp_v6_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req)
 {
-        tcp_v6_send_ack(skb, req->snt_isn+1, req->rcv_isn+1, req->rcv_wnd, req->ts_recent);
+        tcp_v6_send_ack(skb, tcp_rsk(req)->snt_isn + 1, tcp_rsk(req)->rcv_isn + 1, req->rcv_wnd, req->ts_recent);
 }
 
 
 static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
 {
-        struct open_request *req, **prev;
+        struct request_sock *req, **prev;
         struct tcphdr *th = skb->h.th;
         struct tcp_sock *tp = tcp_sk(sk);
         struct sock *nsk;
@@ -1260,21 +1264,13 @@ static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
         return sk;
 }
 
-static void tcp_v6_synq_add(struct sock *sk, struct open_request *req)
+static void tcp_v6_synq_add(struct sock *sk, struct request_sock *req)
 {
         struct tcp_sock *tp = tcp_sk(sk);
-        struct tcp_listen_opt *lopt = tp->listen_opt;
-        u32 h = tcp_v6_synq_hash(&req->af.v6_req.rmt_addr, req->rmt_port, lopt->hash_rnd);
-
-        req->sk = NULL;
-        req->expires = jiffies + TCP_TIMEOUT_INIT;
-        req->retrans = 0;
-        req->dl_next = lopt->syn_table[h];
-
-        write_lock(&tp->syn_wait_lock);
-        lopt->syn_table[h] = req;
-        write_unlock(&tp->syn_wait_lock);
+        struct listen_sock *lopt = tp->accept_queue.listen_opt;
+        u32 h = tcp_v6_synq_hash(&tcp6_rsk(req)->rmt_addr, inet_rsk(req)->rmt_port, lopt->hash_rnd);
 
+        reqsk_queue_hash_req(&tp->accept_queue, h, req, TCP_TIMEOUT_INIT);
         tcp_synq_added(sk);
 }
 
@@ -1284,10 +1280,11 @@ static void tcp_v6_synq_add(struct sock *sk, struct open_request *req)
  */
 static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 {
+        struct tcp6_request_sock *treq;
         struct ipv6_pinfo *np = inet6_sk(sk);
         struct tcp_options_received tmp_opt;
         struct tcp_sock *tp = tcp_sk(sk);
-        struct open_request *req = NULL;
+        struct request_sock *req = NULL;
         __u32 isn = TCP_SKB_CB(skb)->when;
 
         if (skb->protocol == htons(ETH_P_IP))
@@ -1308,7 +1305,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
         if (sk_acceptq_is_full(sk) && tcp_synq_young(sk) > 1)
                 goto drop;
 
-        req = tcp_openreq_alloc();
+        req = reqsk_alloc(&tcp6_request_sock_ops);
         if (req == NULL)
                 goto drop;
 
@@ -1321,28 +1318,28 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
         tmp_opt.tstamp_ok = tmp_opt.saw_tstamp;
         tcp_openreq_init(req, &tmp_opt, skb);
 
-        req->class = &or_ipv6;
-        ipv6_addr_copy(&req->af.v6_req.rmt_addr, &skb->nh.ipv6h->saddr);
-        ipv6_addr_copy(&req->af.v6_req.loc_addr, &skb->nh.ipv6h->daddr);
+        treq = tcp6_rsk(req);
+        ipv6_addr_copy(&treq->rmt_addr, &skb->nh.ipv6h->saddr);
+        ipv6_addr_copy(&treq->loc_addr, &skb->nh.ipv6h->daddr);
         TCP_ECN_create_request(req, skb->h.th);
-        req->af.v6_req.pktopts = NULL;
+        treq->pktopts = NULL;
         if (ipv6_opt_accepted(sk, skb) ||
             np->rxopt.bits.rxinfo ||
             np->rxopt.bits.rxhlim) {
                 atomic_inc(&skb->users);
-                req->af.v6_req.pktopts = skb;
+                treq->pktopts = skb;
         }
-        req->af.v6_req.iif = sk->sk_bound_dev_if;
+        treq->iif = sk->sk_bound_dev_if;
 
         /* So that link locals have meaning */
         if (!sk->sk_bound_dev_if &&
-            ipv6_addr_type(&req->af.v6_req.rmt_addr) & IPV6_ADDR_LINKLOCAL)
-                req->af.v6_req.iif = tcp_v6_iif(skb);
+            ipv6_addr_type(&treq->rmt_addr) & IPV6_ADDR_LINKLOCAL)
+                treq->iif = tcp_v6_iif(skb);
 
         if (isn == 0) 
                 isn = tcp_v6_init_sequence(sk,skb);
 
-        req->snt_isn = isn;
+        tcp_rsk(req)->snt_isn = isn;
 
         if (tcp_v6_send_synack(sk, req, NULL))
                 goto drop;
@@ -1353,16 +1350,17 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 
 drop:
         if (req)
-                tcp_openreq_free(req);
+                reqsk_free(req);
 
         TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
         return 0; /* don't send reset */
 }
 
 static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
-                                          struct open_request *req,
+                                          struct request_sock *req,
                                           struct dst_entry *dst)
 {
+        struct tcp6_request_sock *treq = tcp6_rsk(req);
         struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
         struct tcp6_sock *newtcp6sk;
         struct inet_sock *newinet;
@@ -1426,10 +1424,10 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
                 goto out_overflow;
 
         if (np->rxopt.bits.srcrt == 2 &&
-            opt == NULL && req->af.v6_req.pktopts) {
-                struct inet6_skb_parm *rxopt = IP6CB(req->af.v6_req.pktopts);
+            opt == NULL && treq->pktopts) {
+                struct inet6_skb_parm *rxopt = IP6CB(treq->pktopts);
                 if (rxopt->srcrt)
-                        opt = ipv6_invert_rthdr(sk, (struct ipv6_rt_hdr*)(req->af.v6_req.pktopts->nh.raw+rxopt->srcrt));
+                        opt = ipv6_invert_rthdr(sk, (struct ipv6_rt_hdr *)(treq->pktopts->nh.raw + rxopt->srcrt));
         }
 
         if (dst == NULL) {
@@ -1438,16 +1436,16 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
                 memset(&fl, 0, sizeof(fl));
                 fl.proto = IPPROTO_TCP;
-                ipv6_addr_copy(&fl.fl6_dst, &req->af.v6_req.rmt_addr);
+                ipv6_addr_copy(&fl.fl6_dst, &treq->rmt_addr);
                 if (opt && opt->srcrt) {
                         struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt;
                         ipv6_addr_copy(&final, &fl.fl6_dst);
                         ipv6_addr_copy(&fl.fl6_dst, rt0->addr);
                         final_p = &final;
                 }
-                ipv6_addr_copy(&fl.fl6_src, &req->af.v6_req.loc_addr);
+                ipv6_addr_copy(&fl.fl6_src, &treq->loc_addr);
                 fl.oif = sk->sk_bound_dev_if;
-                fl.fl_ip_dport = req->rmt_port;
+                fl.fl_ip_dport = inet_rsk(req)->rmt_port;
                 fl.fl_ip_sport = inet_sk(sk)->sport;
 
                 if (ip6_dst_lookup(sk, &dst, &fl))
@@ -1482,10 +1480,10 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
         memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-        ipv6_addr_copy(&newnp->daddr, &req->af.v6_req.rmt_addr);
-        ipv6_addr_copy(&newnp->saddr, &req->af.v6_req.loc_addr);
-        ipv6_addr_copy(&newnp->rcv_saddr, &req->af.v6_req.loc_addr);
-        newsk->sk_bound_dev_if = req->af.v6_req.iif;
+        ipv6_addr_copy(&newnp->daddr, &treq->rmt_addr);
+        ipv6_addr_copy(&newnp->saddr, &treq->loc_addr);
+        ipv6_addr_copy(&newnp->rcv_saddr, &treq->loc_addr);
+        newsk->sk_bound_dev_if = treq->iif;
 
         /* Now IPv6 options... 
 
@@ -1498,11 +1496,10 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
         /* Clone pktoptions received with SYN */
         newnp->pktoptions = NULL;
-        if (req->af.v6_req.pktopts) {
-                newnp->pktoptions = skb_clone(req->af.v6_req.pktopts,
-                                              GFP_ATOMIC);
-                kfree_skb(req->af.v6_req.pktopts);
-                req->af.v6_req.pktopts = NULL;
+        if (treq->pktopts != NULL) {
+                newnp->pktoptions = skb_clone(treq->pktopts, GFP_ATOMIC);
+                kfree_skb(treq->pktopts);
+                treq->pktopts = NULL;
                 if (newnp->pktoptions)
                         skb_set_owner_r(newnp->pktoptions, newsk);
         }
@@ -2028,7 +2025,7 @@ static int tcp_v6_init_sock(struct sock *sk)
         sk->sk_state = TCP_CLOSE;
 
         tp->af_specific = &ipv6_specific;
-
+        tp->ca_ops = &tcp_init_congestion_ops;
         sk->sk_write_space = sk_stream_write_space;
         sock_set_flag(sk, SOCK_USE_WRITE_QUEUE);
 
@@ -2050,7 +2047,7 @@ static int tcp_v6_destroy_sock(struct sock *sk)
 
 /* Proc filesystem TCPv6 sock list dumping. */
 static void get_openreq6(struct seq_file *seq, 
-                         struct sock *sk, struct open_request *req, int i, int uid)
+                         struct sock *sk, struct request_sock *req, int i, int uid)
 {
         struct in6_addr *dest, *src;
         int ttd = req->expires - jiffies;
@@ -2058,8 +2055,8 @@ static void get_openreq6(struct seq_file *seq,
         if (ttd < 0)
                 ttd = 0;
 
-        src = &req->af.v6_req.loc_addr;
-        dest = &req->af.v6_req.rmt_addr;
+        src = &tcp6_rsk(req)->loc_addr;
+        dest = &tcp6_rsk(req)->rmt_addr;
         seq_printf(seq,
                    "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
                    "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %p\n",
@@ -2069,7 +2066,7 @@ static void get_openreq6(struct seq_file *seq,
                    ntohs(inet_sk(sk)->sport),
                    dest->s6_addr32[0], dest->s6_addr32[1],
                    dest->s6_addr32[2], dest->s6_addr32[3],
-                   ntohs(req->rmt_port),
+                   ntohs(inet_rsk(req)->rmt_port),
                    TCP_SYN_RECV,
                    0,0, /* could print option size, but that is af dependent. */
                    1,   /* timers active (only the expire timer) */  
@@ -2239,6 +2236,7 @@ struct proto tcpv6_prot = {
         .sysctl_rmem            = sysctl_tcp_rmem,
         .max_header             = MAX_TCP_HEADER,
         .obj_size               = sizeof(struct tcp6_sock),
+        .rsk_prot               = &tcp6_request_sock_ops,
 };
 
 static struct inet6_protocol tcpv6_protocol = {
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index e251d0ba4f39..eff050ac7049 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -300,12 +300,12 @@ csum_copy_err:
         /* Clear queue. */
         if (flags&MSG_PEEK) {
                 int clear = 0;
-                spin_lock_irq(&sk->sk_receive_queue.lock);
+                spin_lock_bh(&sk->sk_receive_queue.lock);
                 if (skb == skb_peek(&sk->sk_receive_queue)) {
                         __skb_unlink(skb, &sk->sk_receive_queue);
                         clear = 1;
                 }
-                spin_unlock_irq(&sk->sk_receive_queue.lock);
+                spin_unlock_bh(&sk->sk_receive_queue.lock);
                 if (clear)
                         kfree_skb(skb);
         }
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index ffcadd68b951..60c26c87277e 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -466,7 +466,7 @@ static void xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
         return;
 }
 
-static int xfrm6_tunnel_init_state(struct xfrm_state *x, void *args)
+static int xfrm6_tunnel_init_state(struct xfrm_state *x)
 {
         if (!x->props.mode)
                 return -EINVAL;
diff --git a/net/key/af_key.c b/net/key/af_key.c
index ce980aa94ed8..4879743b945a 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -656,13 +656,18 @@ static struct sk_buff * pfkey_xfrm_state2msg(struct xfrm_state *x, int add_keys,
         sa->sadb_sa_exttype = SADB_EXT_SA;
         sa->sadb_sa_spi = x->id.spi;
         sa->sadb_sa_replay = x->props.replay_window;
-        sa->sadb_sa_state = SADB_SASTATE_DYING;
-        if (x->km.state == XFRM_STATE_VALID && !x->km.dying)
-                sa->sadb_sa_state = SADB_SASTATE_MATURE;
-        else if (x->km.state == XFRM_STATE_ACQ)
+        switch (x->km.state) {
+        case XFRM_STATE_VALID:
+                sa->sadb_sa_state = x->km.dying ?
+                        SADB_SASTATE_DYING : SADB_SASTATE_MATURE;
+                break;
+        case XFRM_STATE_ACQ:
                 sa->sadb_sa_state = SADB_SASTATE_LARVAL;
-        else if (x->km.state == XFRM_STATE_EXPIRED)
+                break;
+        default:
                 sa->sadb_sa_state = SADB_SASTATE_DEAD;
+                break;
+        }
         sa->sadb_sa_auth = 0;
         if (x->aalg) {
                 struct xfrm_algo_desc *a = xfrm_aalg_get_byname(x->aalg->alg_name, 0);
@@ -685,6 +690,8 @@ static struct sk_buff * pfkey_xfrm_state2msg(struct xfrm_state *x, int add_keys,
                 sa->sadb_sa_flags |= SADB_SAFLAGS_NOECN;
         if (x->props.flags & XFRM_STATE_DECAP_DSCP)
                 sa->sadb_sa_flags |= SADB_SAFLAGS_DECAP_DSCP;
+        if (x->props.flags & XFRM_STATE_NOPMTUDISC)
+                sa->sadb_sa_flags |= SADB_SAFLAGS_NOPMTUDISC;
 
         /* hard time */
         if (hsc & 2) {
@@ -969,6 +976,8 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct sadb_msg *hdr,
                 x->props.flags |= XFRM_STATE_NOECN;
         if (sa->sadb_sa_flags & SADB_SAFLAGS_DECAP_DSCP)
                 x->props.flags |= XFRM_STATE_DECAP_DSCP;
+        if (sa->sadb_sa_flags & SADB_SAFLAGS_NOPMTUDISC)
+                x->props.flags |= XFRM_STATE_NOPMTUDISC;
 
         lifetime = (struct sadb_lifetime*) ext_hdrs[SADB_EXT_LIFETIME_HARD-1];
         if (lifetime != NULL) {
@@ -1091,17 +1100,11 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct sadb_msg *hdr,
                 }
         }
 
-        x->type = xfrm_get_type(proto, x->props.family);
-        if (x->type == NULL) {
-                err = -ENOPROTOOPT;
-                goto out;
-        }
-        if (x->type->init_state(x, NULL)) {
-                err = -EINVAL;
+        err = xfrm_init_state(x);
+        if (err)
                 goto out;
-        }
+
         x->km.seq = hdr->sadb_msg_seq;
-        x->km.state = XFRM_STATE_VALID;
         return x;
 
 out:
@@ -1240,13 +1243,78 @@ static int pfkey_acquire(struct sock *sk, struct sk_buff *skb, struct sadb_msg *
         return 0;
 }
 
+static inline int event2poltype(int event)
+{
+        switch (event) {
+        case XFRM_MSG_DELPOLICY:
+                return SADB_X_SPDDELETE;
+        case XFRM_MSG_NEWPOLICY:
+                return SADB_X_SPDADD;
+        case XFRM_MSG_UPDPOLICY:
+                return SADB_X_SPDUPDATE;
+        case XFRM_MSG_POLEXPIRE:
+        //      return SADB_X_SPDEXPIRE;
+        default:
+                printk("pfkey: Unknown policy event %d\n", event);
+                break;
+        }
+
+        return 0;
+}
+
+static inline int event2keytype(int event)
+{
+        switch (event) {
+        case XFRM_MSG_DELSA:
+                return SADB_DELETE;
+        case XFRM_MSG_NEWSA:
+                return SADB_ADD;
+        case XFRM_MSG_UPDSA:
+                return SADB_UPDATE;
+        case XFRM_MSG_EXPIRE:
+                return SADB_EXPIRE;
+        default:
+                printk("pfkey: Unknown SA event %d\n", event);
+                break;
+        }
+
+        return 0;
+}
+
+/* ADD/UPD/DEL */
+static int key_notify_sa(struct xfrm_state *x, struct km_event *c)
+{
+        struct sk_buff *skb;
+        struct sadb_msg *hdr;
+        int hsc = 3;
+
+        if (c->event == XFRM_MSG_DELSA)
+                hsc = 0;
+
+        skb = pfkey_xfrm_state2msg(x, 0, hsc);
+
+        if (IS_ERR(skb))
+                return PTR_ERR(skb);
+
+        hdr = (struct sadb_msg *) skb->data;
+        hdr->sadb_msg_version = PF_KEY_V2;
+        hdr->sadb_msg_type = event2keytype(c->event);
+        hdr->sadb_msg_satype = pfkey_proto2satype(x->id.proto);
+        hdr->sadb_msg_errno = 0;
+        hdr->sadb_msg_reserved = 0;
+        hdr->sadb_msg_seq = c->seq;
+        hdr->sadb_msg_pid = c->pid;
+
+        pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL);
+
+        return 0;
+}
 
 static int pfkey_add(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
 {
-        struct sk_buff *out_skb;
-        struct sadb_msg *out_hdr;
         struct xfrm_state *x;
         int err;
+        struct km_event c;
 
         xfrm_probe_algs();
         
@@ -1254,6 +1322,7 @@ static int pfkey_add(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr,
         if (IS_ERR(x))
                 return PTR_ERR(x);
 
+        xfrm_state_hold(x);
         if (hdr->sadb_msg_type == SADB_ADD)
                 err = xfrm_state_add(x);
         else
@@ -1262,30 +1331,26 @@ static int pfkey_add(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr,
         if (err < 0) {
                 x->km.state = XFRM_STATE_DEAD;
                 xfrm_state_put(x);
-                return err;
+                goto out;
         }
 
-        out_skb = pfkey_xfrm_state2msg(x, 0, 3);
-        if (IS_ERR(out_skb))
-                return  PTR_ERR(out_skb); /* XXX Should we return 0 here ? */
-
-        out_hdr = (struct sadb_msg *) out_skb->data;
-        out_hdr->sadb_msg_version = hdr->sadb_msg_version;
-        out_hdr->sadb_msg_type = hdr->sadb_msg_type;
-        out_hdr->sadb_msg_satype = pfkey_proto2satype(x->id.proto);
-        out_hdr->sadb_msg_errno = 0;
-        out_hdr->sadb_msg_reserved = 0;
-        out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
-        out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
-
-        pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, sk);
-
-        return 0;
+        if (hdr->sadb_msg_type == SADB_ADD)
+                c.event = XFRM_MSG_NEWSA;
+        else
+                c.event = XFRM_MSG_UPDSA;
+        c.seq = hdr->sadb_msg_seq;
+        c.pid = hdr->sadb_msg_pid;
+        km_state_notify(x, &c);
+out:
+        xfrm_state_put(x);
+        return err;
 }
 
 static int pfkey_delete(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
 {
         struct xfrm_state *x;
+        struct km_event c;
+        int err;
 
         if (!ext_hdrs[SADB_EXT_SA-1] ||
             !present_and_same_family(ext_hdrs[SADB_EXT_ADDRESS_SRC-1],
@@ -1301,13 +1366,19 @@ static int pfkey_delete(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
                 return -EPERM;
         }
         
-        xfrm_state_delete(x);
-        xfrm_state_put(x);
+        err = xfrm_state_delete(x);
+        if (err < 0) {
+                xfrm_state_put(x);
+                return err;
+        }
 
-        pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL, 
-                        BROADCAST_ALL, sk);
+        c.seq = hdr->sadb_msg_seq;
+        c.pid = hdr->sadb_msg_pid;
+        c.event = XFRM_MSG_DELSA;
+        km_state_notify(x, &c);
+        xfrm_state_put(x);
 
-        return 0;
+        return err;
 }
 
 static int pfkey_get(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
@@ -1445,28 +1516,42 @@ static int pfkey_register(struct sock *sk, struct sk_buff *skb, struct sadb_msg
         return 0;
 }
 
+static int key_notify_sa_flush(struct km_event *c)
+{
+        struct sk_buff *skb;
+        struct sadb_msg *hdr;
+
+        skb = alloc_skb(sizeof(struct sadb_msg) + 16, GFP_ATOMIC);
+        if (!skb)
+                return -ENOBUFS;
+        hdr = (struct sadb_msg *) skb_put(skb, sizeof(struct sadb_msg));
+        hdr->sadb_msg_satype = pfkey_proto2satype(c->data.proto);
+        hdr->sadb_msg_seq = c->seq;
+        hdr->sadb_msg_pid = c->pid;
+        hdr->sadb_msg_version = PF_KEY_V2;
+        hdr->sadb_msg_errno = (uint8_t) 0;
+        hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
+
+        pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL);
+
+        return 0;
+}
+
 static int pfkey_flush(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
 {
         unsigned proto;
-        struct sk_buff *skb_out;
-        struct sadb_msg *hdr_out;
+        struct km_event c;
 
         proto = pfkey_satype2proto(hdr->sadb_msg_satype);
         if (proto == 0)
                 return -EINVAL;
 
-        skb_out = alloc_skb(sizeof(struct sadb_msg) + 16, GFP_KERNEL);
-        if (!skb_out)
-                return -ENOBUFS;
-
         xfrm_state_flush(proto);
-
-        hdr_out = (struct sadb_msg *) skb_put(skb_out, sizeof(struct sadb_msg));
-        pfkey_hdr_dup(hdr_out, hdr);
-        hdr_out->sadb_msg_errno = (uint8_t) 0;
-        hdr_out->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
-
-        pfkey_broadcast(skb_out, GFP_KERNEL, BROADCAST_ALL, NULL);
+        c.data.proto = proto;
+        c.seq = hdr->sadb_msg_seq;
+        c.pid = hdr->sadb_msg_pid;
+        c.event = XFRM_MSG_FLUSHSA;
+        km_state_notify(NULL, &c);
 
         return 0;
 }
@@ -1859,6 +1944,35 @@ static void pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, i
         hdr->sadb_msg_reserved = atomic_read(&xp->refcnt);
 }
 
+static int key_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *c)
+{
+        struct sk_buff *out_skb;
+        struct sadb_msg *out_hdr;
+        int err;
+
+        out_skb = pfkey_xfrm_policy2msg_prep(xp);
+        if (IS_ERR(out_skb)) {
+                err = PTR_ERR(out_skb);
+                goto out;
+        }
+        pfkey_xfrm_policy2msg(out_skb, xp, dir);
+
+        out_hdr = (struct sadb_msg *) out_skb->data;
+        out_hdr->sadb_msg_version = PF_KEY_V2;
+
+        if (c->data.byid && c->event == XFRM_MSG_DELPOLICY)
+                out_hdr->sadb_msg_type = SADB_X_SPDDELETE2;
+        else
+                out_hdr->sadb_msg_type = event2poltype(c->event);
+        out_hdr->sadb_msg_errno = 0;
+        out_hdr->sadb_msg_seq = c->seq;
+        out_hdr->sadb_msg_pid = c->pid;
+        pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, NULL);
+out:
+        return 0;
+
+}
+
 static int pfkey_spdadd(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
 {
         int err;
@@ -1866,8 +1980,7 @@ static int pfkey_spdadd(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
         struct sadb_address *sa;
         struct sadb_x_policy *pol;
         struct xfrm_policy *xp;
-        struct sk_buff *out_skb;
-        struct sadb_msg *out_hdr;
+        struct km_event c;
 
         if (!present_and_same_family(ext_hdrs[SADB_EXT_ADDRESS_SRC-1],
                                      ext_hdrs[SADB_EXT_ADDRESS_DST-1]) ||
@@ -1935,31 +2048,23 @@ static int pfkey_spdadd(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
             (err = parse_ipsecrequests(xp, pol)) < 0)
                 goto out;
 
-        out_skb = pfkey_xfrm_policy2msg_prep(xp);
-        if (IS_ERR(out_skb)) {
-                err =  PTR_ERR(out_skb);
-                goto out;
-        }
-
         err = xfrm_policy_insert(pol->sadb_x_policy_dir-1, xp,
                                  hdr->sadb_msg_type != SADB_X_SPDUPDATE);
         if (err) {
-                kfree_skb(out_skb);
-                goto out;
+                kfree(xp);
+                return err;
         }
 
-        pfkey_xfrm_policy2msg(out_skb, xp, pol->sadb_x_policy_dir-1);
+        if (hdr->sadb_msg_type == SADB_X_SPDUPDATE)
+                c.event = XFRM_MSG_UPDPOLICY;
+        else 
+                c.event = XFRM_MSG_NEWPOLICY;
 
-        xfrm_pol_put(xp);
+        c.seq = hdr->sadb_msg_seq;
+        c.pid = hdr->sadb_msg_pid;
 
-        out_hdr = (struct sadb_msg *) out_skb->data;
-        out_hdr->sadb_msg_version = hdr->sadb_msg_version;
-        out_hdr->sadb_msg_type = hdr->sadb_msg_type;
-        out_hdr->sadb_msg_satype = 0;
-        out_hdr->sadb_msg_errno = 0;
-        out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
-        out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
-        pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, sk);
+        km_policy_notify(xp, pol->sadb_x_policy_dir-1, &c);
+        xfrm_pol_put(xp);
         return 0;
 
 out:
@@ -1973,9 +2078,8 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, struct sadb_msg
         struct sadb_address *sa;
         struct sadb_x_policy *pol;
         struct xfrm_policy *xp;
-        struct sk_buff *out_skb;
-        struct sadb_msg *out_hdr;
         struct xfrm_selector sel;
+        struct km_event c;
 
         if (!present_and_same_family(ext_hdrs[SADB_EXT_ADDRESS_SRC-1],
                                      ext_hdrs[SADB_EXT_ADDRESS_DST-1]) ||
@@ -2010,25 +2114,40 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, struct sadb_msg
 
         err = 0;
 
+        c.seq = hdr->sadb_msg_seq;
+        c.pid = hdr->sadb_msg_pid;
+        c.event = XFRM_MSG_DELPOLICY;
+        km_policy_notify(xp, pol->sadb_x_policy_dir-1, &c);
+
+        xfrm_pol_put(xp);
+        return err;
+}
+
+static int key_pol_get_resp(struct sock *sk, struct xfrm_policy *xp, struct sadb_msg *hdr, int dir)
+{
+        int err;
+        struct sk_buff *out_skb;
+        struct sadb_msg *out_hdr;
+        err = 0;
+
         out_skb = pfkey_xfrm_policy2msg_prep(xp);
         if (IS_ERR(out_skb)) {
                 err =  PTR_ERR(out_skb);
                 goto out;
         }
-        pfkey_xfrm_policy2msg(out_skb, xp, pol->sadb_x_policy_dir-1);
+        pfkey_xfrm_policy2msg(out_skb, xp, dir);
 
         out_hdr = (struct sadb_msg *) out_skb->data;
         out_hdr->sadb_msg_version = hdr->sadb_msg_version;
-        out_hdr->sadb_msg_type = SADB_X_SPDDELETE;
+        out_hdr->sadb_msg_type = hdr->sadb_msg_type;
         out_hdr->sadb_msg_satype = 0;
         out_hdr->sadb_msg_errno = 0;
         out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
         out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
-        pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, sk);
+        pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk);
         err = 0;
 
 out:
-        xfrm_pol_put(xp);
         return err;
 }
 
@@ -2037,8 +2156,7 @@ static int pfkey_spdget(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
         int err;
         struct sadb_x_policy *pol;
         struct xfrm_policy *xp;
-        struct sk_buff *out_skb;
-        struct sadb_msg *out_hdr;
+        struct km_event c;
 
         if ((pol = ext_hdrs[SADB_X_EXT_POLICY-1]) == NULL)
                 return -EINVAL;
@@ -2050,24 +2168,16 @@ static int pfkey_spdget(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
 
         err = 0;
 
-        out_skb = pfkey_xfrm_policy2msg_prep(xp);
-        if (IS_ERR(out_skb)) {
-                err =  PTR_ERR(out_skb);
-                goto out;
+        c.seq = hdr->sadb_msg_seq;
+        c.pid = hdr->sadb_msg_pid;
+        if (hdr->sadb_msg_type == SADB_X_SPDDELETE2) {
+                c.data.byid = 1;
+                c.event = XFRM_MSG_DELPOLICY;
+                km_policy_notify(xp, pol->sadb_x_policy_dir-1, &c);
+        } else {
+                err = key_pol_get_resp(sk, xp, hdr, pol->sadb_x_policy_dir-1);
         }
-        pfkey_xfrm_policy2msg(out_skb, xp, pol->sadb_x_policy_dir-1);
 
-        out_hdr = (struct sadb_msg *) out_skb->data;
-        out_hdr->sadb_msg_version = hdr->sadb_msg_version;
-        out_hdr->sadb_msg_type = hdr->sadb_msg_type;
-        out_hdr->sadb_msg_satype = 0;
-        out_hdr->sadb_msg_errno = 0;
-        out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
-        out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
-        pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, sk);
-        err = 0;
-
-out:
         xfrm_pol_put(xp);
         return err;
 }
@@ -2102,22 +2212,34 @@ static int pfkey_spddump(struct sock *sk, struct sk_buff *skb, struct sadb_msg *
         return xfrm_policy_walk(dump_sp, &data);
 }
 
-static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
+static int key_notify_policy_flush(struct km_event *c)
 {
         struct sk_buff *skb_out;
-        struct sadb_msg *hdr_out;
+        struct sadb_msg *hdr;
 
-        skb_out = alloc_skb(sizeof(struct sadb_msg) + 16, GFP_KERNEL);
+        skb_out = alloc_skb(sizeof(struct sadb_msg) + 16, GFP_ATOMIC);
         if (!skb_out)
                 return -ENOBUFS;
+        hdr = (struct sadb_msg *) skb_put(skb_out, sizeof(struct sadb_msg));
+        hdr->sadb_msg_seq = c->seq;
+        hdr->sadb_msg_pid = c->pid;
+        hdr->sadb_msg_version = PF_KEY_V2;
+        hdr->sadb_msg_errno = (uint8_t) 0;
+        hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
+        pfkey_broadcast(skb_out, GFP_ATOMIC, BROADCAST_ALL, NULL);
+        return 0;
 
-        xfrm_policy_flush();
+}
 
-        hdr_out = (struct sadb_msg *) skb_put(skb_out, sizeof(struct sadb_msg));
-        pfkey_hdr_dup(hdr_out, hdr);
-        hdr_out->sadb_msg_errno = (uint8_t) 0;
-        hdr_out->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
-        pfkey_broadcast(skb_out, GFP_KERNEL, BROADCAST_ALL, NULL);
+static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
+{
+        struct km_event c;
+
+        xfrm_policy_flush();
+        c.event = XFRM_MSG_FLUSHPOLICY;
+        c.pid = hdr->sadb_msg_pid;
+        c.seq = hdr->sadb_msg_seq;
+        km_policy_notify(NULL, 0, &c);
 
         return 0;
 }
@@ -2317,11 +2439,23 @@ static void dump_esp_combs(struct sk_buff *skb, struct xfrm_tmpl *t)
         }
 }
 
-static int pfkey_send_notify(struct xfrm_state *x, int hard)
+static int key_notify_policy_expire(struct xfrm_policy *xp, struct km_event *c)
+{
+        return 0;
+}
+
+static int key_notify_sa_expire(struct xfrm_state *x, struct km_event *c)
 {
         struct sk_buff *out_skb;
         struct sadb_msg *out_hdr;
-        int hsc = (hard ? 2 : 1);
+        int hard;
+        int hsc;
+
+        hard = c->data.hard;
+        if (hard)
+                hsc = 2;
+        else
+                hsc = 1;
 
         out_skb = pfkey_xfrm_state2msg(x, 0, hsc);
         if (IS_ERR(out_skb))
@@ -2340,6 +2474,44 @@ static int pfkey_send_notify(struct xfrm_state *x, int hard)
         return 0;
 }
 
+static int pfkey_send_notify(struct xfrm_state *x, struct km_event *c)
+{
+        switch (c->event) {
+        case XFRM_MSG_EXPIRE:
+                return key_notify_sa_expire(x, c);
+        case XFRM_MSG_DELSA:
+        case XFRM_MSG_NEWSA:
+        case XFRM_MSG_UPDSA:
+                return key_notify_sa(x, c);
+        case XFRM_MSG_FLUSHSA:
+                return key_notify_sa_flush(c);
+        default:
+                printk("pfkey: Unknown SA event %d\n", c->event);
+                break;
+        }
+
+        return 0;
+}
+
+static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, struct km_event *c)
+{
+        switch (c->event) {
+        case XFRM_MSG_POLEXPIRE:
+                return key_notify_policy_expire(xp, c);
+        case XFRM_MSG_DELPOLICY:
+        case XFRM_MSG_NEWPOLICY:
+        case XFRM_MSG_UPDPOLICY:
+                return key_notify_policy(xp, dir, c);
+        case XFRM_MSG_FLUSHPOLICY:
+                return key_notify_policy_flush(c);
+        default:
+                printk("pfkey: Unknown policy event %d\n", c->event);
+                break;
+        }
+
+        return 0;
+}
+
 static u32 get_acqseq(void)
 {
         u32 res;
@@ -2856,6 +3028,7 @@ static struct xfrm_mgr pfkeyv2_mgr =
         .acquire        = pfkey_send_acquire,
         .compile_policy = pfkey_compile_policy,
         .new_mapping    = pfkey_send_new_mapping,
+        .notify_policy  = pfkey_send_policy_notify,
 };
 
 static void __exit ipsec_pfkey_exit(void)
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index e41ce458c2a9..fc456a7aaec3 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -315,8 +315,8 @@ err:
 static void netlink_remove(struct sock *sk)
 {
         netlink_table_grab();
-        nl_table[sk->sk_protocol].hash.entries--;
-        sk_del_node_init(sk);
+        if (sk_del_node_init(sk))
+                nl_table[sk->sk_protocol].hash.entries--;
         if (nlk_sk(sk)->groups)
                 __sk_del_bind_node(sk);
         netlink_table_ungrab();
@@ -429,7 +429,12 @@ retry:
         err = netlink_insert(sk, pid);
         if (err == -EADDRINUSE)
                 goto retry;
-        return 0;
+
+        /* If 2 threads race to autobind, that is fine.  */
+        if (err == -EBUSY)
+                err = 0;
+
+        return err;
 }
 
 static inline int netlink_capable(struct socket *sock, unsigned int flag) 
@@ -1095,8 +1100,7 @@ static int netlink_dump(struct sock *sk)
                 return 0;
         }
 
-        nlh = __nlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, NLMSG_DONE, sizeof(int));
-        nlh->nlmsg_flags |= NLM_F_MULTI;
+        nlh = NLMSG_NEW_ANSWER(skb, cb, NLMSG_DONE, sizeof(len), NLM_F_MULTI);
         memcpy(NLMSG_DATA(nlh), &len, sizeof(len));
         skb_queue_tail(&sk->sk_receive_queue, skb);
         sk->sk_data_ready(sk, skb->len);
@@ -1107,6 +1111,9 @@ static int netlink_dump(struct sock *sk)
 
         netlink_destroy_callback(cb);
         return 0;
+
+nlmsg_failure:
+        return -ENOBUFS;
 }
 
 int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
@@ -1178,7 +1185,7 @@ void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err)
         }
 
         rep = __nlmsg_put(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq,
-                          NLMSG_ERROR, sizeof(struct nlmsgerr));
+                          NLMSG_ERROR, sizeof(struct nlmsgerr), 0);
         errmsg = NLMSG_DATA(rep);
         errmsg->error = err;
         memcpy(&errmsg->msg, nlh, err ? nlh->nlmsg_len : sizeof(struct nlmsghdr));
diff --git a/net/rxrpc/krxiod.c b/net/rxrpc/krxiod.c
index 2b537f425a17..dada34a77b21 100644
--- a/net/rxrpc/krxiod.c
+++ b/net/rxrpc/krxiod.c
@@ -138,7 +138,7 @@ static int rxrpc_krxiod(void *arg)
 
                 _debug("### End Work");
 
-                try_to_freeze(PF_FREEZE);
+                try_to_freeze();
 
                 /* discard pending signals */
                 rxrpc_discard_my_signals();
diff --git a/net/rxrpc/krxsecd.c b/net/rxrpc/krxsecd.c
index 6020c89d9228..1aadd026d354 100644
--- a/net/rxrpc/krxsecd.c
+++ b/net/rxrpc/krxsecd.c
@@ -107,7 +107,7 @@ static int rxrpc_krxsecd(void *arg)
 
                 _debug("### End Inbound Calls");
 
-                try_to_freeze(PF_FREEZE);
+                try_to_freeze();
 
                 /* discard pending signals */
                 rxrpc_discard_my_signals();
diff --git a/net/rxrpc/krxtimod.c b/net/rxrpc/krxtimod.c
index 249c2b0290bb..3ac81cdd1211 100644
--- a/net/rxrpc/krxtimod.c
+++ b/net/rxrpc/krxtimod.c
@@ -90,7 +90,7 @@ static int krxtimod(void *arg)
                         complete_and_exit(&krxtimod_dead, 0);
                 }
 
-                try_to_freeze(PF_FREEZE);
+                try_to_freeze();
 
                 /* discard pending signals */
                 rxrpc_discard_my_signals();
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index b0941186f867..7bac249258e3 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -405,7 +405,7 @@ config NET_EMATCH_STACK
         ---help---
           Size of the local stack variable used while evaluating the tree of
           ematches. Limits the depth of the tree, i.e. the number of
-          encapsulated precedences. Every level requires 4 bytes of addtional
+          encapsulated precedences. Every level requires 4 bytes of additional
           stack space.
 
 config NET_EMATCH_CMP
@@ -449,6 +449,19 @@ config NET_EMATCH_META
           To compile this code as a module, choose M here: the
           module will be called em_meta.
 
+config NET_EMATCH_TEXT
+        tristate "Textsearch"
+        depends on NET_EMATCH
+        select TEXTSEARCH
+        select TEXTSEARCH_KMP
+        select TEXTSEARCH_FSM
+        ---help---
+          Say Y here if you want to be ablt to classify packets based on
+          textsearch comparisons.
+
+          To compile this code as a module, choose M here: the
+          module will be called em_text.
+
 config NET_CLS_ACT
         bool "Packet ACTION"
         depends on EXPERIMENTAL && NET_CLS && NET_QOS
diff --git a/net/sched/Makefile b/net/sched/Makefile
index eb3fe583eba8..8f58cecd6266 100644
--- a/net/sched/Makefile
+++ b/net/sched/Makefile
@@ -40,3 +40,4 @@ obj-$(CONFIG_NET_EMATCH_CMP)	+= em_cmp.o
 obj-$(CONFIG_NET_EMATCH_NBYTE)  += em_nbyte.o
 obj-$(CONFIG_NET_EMATCH_U32)    += em_u32.o
 obj-$(CONFIG_NET_EMATCH_META)   += em_meta.o
+obj-$(CONFIG_NET_EMATCH_TEXT)   += em_text.o
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index cafcb084098d..9594206e6035 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -428,15 +428,15 @@ errout:
 
 static int
 tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 pid, u32 seq,
-             unsigned flags, int event, int bind, int ref)
+             u16 flags, int event, int bind, int ref)
 {
         struct tcamsg *t;
         struct nlmsghdr *nlh;
         unsigned char *b = skb->tail;
         struct rtattr *x;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*t));
-        nlh->nlmsg_flags = flags;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
+
         t = NLMSG_DATA(nlh);
         t->tca_family = AF_UNSPEC;
         
@@ -669,7 +669,7 @@ err:
 }
 
 static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event,
-                          unsigned flags)
+                          u16 flags)
 {
         struct tcamsg *t;
         struct nlmsghdr *nlh;
@@ -684,8 +684,7 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event,
 
         b = (unsigned char *)skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*t));
-        nlh->nlmsg_flags = flags;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
         t = NLMSG_DATA(nlh);
         t->tca_family = AF_UNSPEC;
         
@@ -881,7 +880,7 @@ static int __init tc_action_init(void)
                 link_p[RTM_GETACTION-RTM_BASE].dumpit = tc_dump_action;
         }
 
-        printk("TC classifier action (bugs to netdev@oss.sgi.com cc "
+        printk("TC classifier action (bugs to netdev@vger.kernel.org cc "
                "hadi@cyberus.ca)\n");
         return 0;
 }
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 56e66c3fe0fa..1616bf5c9627 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -322,14 +322,13 @@ errout:
 
 static int
 tcf_fill_node(struct sk_buff *skb, struct tcf_proto *tp, unsigned long fh,
-              u32 pid, u32 seq, unsigned flags, int event)
+              u32 pid, u32 seq, u16 flags, int event)
 {
         struct tcmsg *tcm;
         struct nlmsghdr  *nlh;
         unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*tcm));
-        nlh->nlmsg_flags = flags;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
         tcm = NLMSG_DATA(nlh);
         tcm->tcm_family = AF_UNSPEC;
         tcm->tcm_ifindex = tp->q->dev->ifindex;
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index 0d2d4415f334..dfb300bb6baa 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -261,6 +261,9 @@ static int basic_dump(struct tcf_proto *tp, unsigned long fh,
         rta = (struct rtattr *) b;
         RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
 
+        if (f->res.classid)
+                RTA_PUT(skb, TCA_BASIC_CLASSID, sizeof(u32), &f->res.classid);
+
         if (tcf_exts_dump(skb, &f->exts, &basic_ext_map) < 0 ||
             tcf_em_tree_dump(skb, &f->ematches, TCA_BASIC_EMATCHES) < 0)
                 goto rtattr_failure;
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index f1eeaf65cee5..48bb23c2a35a 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -32,7 +32,7 @@
  *            +-----------+                           +-----------+
  *                  |                                       |
  *                  ---> meta_ops[INT][INDEV](...)          |
- *                            |                            |
+ *                            |                             |
  *                  -----------                             |
  *                  V                                       V
  *            +-----------+                           +-----------+
@@ -70,6 +70,7 @@
 #include <net/dst.h>
 #include <net/route.h>
 #include <net/pkt_cls.h>
+#include <net/sock.h>
 
 struct meta_obj
 {
@@ -284,6 +285,214 @@ META_COLLECTOR(int_rtiif)
 }
 
 /**************************************************************************
+ * Socket Attributes
+ **************************************************************************/
+
+#define SKIP_NONLOCAL(skb)                      \
+        if (unlikely(skb->sk == NULL)) {        \
+                *err = -1;                      \
+                return;                         \
+        }
+
+META_COLLECTOR(int_sk_family)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_family;
+}
+
+META_COLLECTOR(int_sk_state)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_state;
+}
+
+META_COLLECTOR(int_sk_reuse)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_reuse;
+}
+
+META_COLLECTOR(int_sk_bound_if)
+{
+        SKIP_NONLOCAL(skb);
+        /* No error if bound_dev_if is 0, legal userspace check */
+        dst->value = skb->sk->sk_bound_dev_if;
+}
+
+META_COLLECTOR(var_sk_bound_if)
+{
+        SKIP_NONLOCAL(skb);
+
+         if (skb->sk->sk_bound_dev_if == 0) {
+                dst->value = (unsigned long) "any";
+                dst->len = 3;
+         } else  {
+                struct net_device *dev;
+                
+                dev = dev_get_by_index(skb->sk->sk_bound_dev_if);
+                *err = var_dev(dev, dst);
+                if (dev)
+                        dev_put(dev);
+         }
+}
+
+META_COLLECTOR(int_sk_refcnt)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = atomic_read(&skb->sk->sk_refcnt);
+}
+
+META_COLLECTOR(int_sk_rcvbuf)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_rcvbuf;
+}
+
+META_COLLECTOR(int_sk_shutdown)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_shutdown;
+}
+
+META_COLLECTOR(int_sk_proto)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_protocol;
+}
+
+META_COLLECTOR(int_sk_type)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_type;
+}
+
+META_COLLECTOR(int_sk_rmem_alloc)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = atomic_read(&skb->sk->sk_rmem_alloc);
+}
+
+META_COLLECTOR(int_sk_wmem_alloc)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = atomic_read(&skb->sk->sk_wmem_alloc);
+}
+
+META_COLLECTOR(int_sk_omem_alloc)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = atomic_read(&skb->sk->sk_omem_alloc);
+}
+
+META_COLLECTOR(int_sk_rcv_qlen)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_receive_queue.qlen;
+}
+
+META_COLLECTOR(int_sk_snd_qlen)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_write_queue.qlen;
+}
+
+META_COLLECTOR(int_sk_wmem_queued)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_wmem_queued;
+}
+
+META_COLLECTOR(int_sk_fwd_alloc)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_forward_alloc;
+}
+
+META_COLLECTOR(int_sk_sndbuf)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_sndbuf;
+}
+
+META_COLLECTOR(int_sk_alloc)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_allocation;
+}
+
+META_COLLECTOR(int_sk_route_caps)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_route_caps;
+}
+
+META_COLLECTOR(int_sk_hashent)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_hashent;
+}
+
+META_COLLECTOR(int_sk_lingertime)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_lingertime / HZ;
+}
+
+META_COLLECTOR(int_sk_err_qlen)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_error_queue.qlen;
+}
+
+META_COLLECTOR(int_sk_ack_bl)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_ack_backlog;
+}
+
+META_COLLECTOR(int_sk_max_ack_bl)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_max_ack_backlog;
+}
+
+META_COLLECTOR(int_sk_prio)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_priority;
+}
+
+META_COLLECTOR(int_sk_rcvlowat)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_rcvlowat;
+}
+
+META_COLLECTOR(int_sk_rcvtimeo)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_rcvtimeo / HZ;
+}
+
+META_COLLECTOR(int_sk_sndtimeo)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_sndtimeo / HZ;
+}
+
+META_COLLECTOR(int_sk_sendmsg_off)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_sndmsg_off;
+}
+
+META_COLLECTOR(int_sk_write_pend)
+{
+        SKIP_NONLOCAL(skb);
+        dst->value = skb->sk->sk_write_pending;
+}
+
+/**************************************************************************
  * Meta value collectors assignment table
  **************************************************************************/
 
@@ -293,41 +502,75 @@ struct meta_ops
                                struct meta_value *, struct meta_obj *, int *);
 };
 
+#define META_ID(name) TCF_META_ID_##name
+#define META_FUNC(name) { .get = meta_##name }
+
 /* Meta value operations table listing all meta value collectors and
  * assigns them to a type and meta id. */
 static struct meta_ops __meta_ops[TCF_META_TYPE_MAX+1][TCF_META_ID_MAX+1] = {
         [TCF_META_TYPE_VAR] = {
-                [TCF_META_ID_DEV]       = { .get = meta_var_dev },
-                [TCF_META_ID_INDEV]     = { .get = meta_var_indev },
-                [TCF_META_ID_REALDEV]   = { .get = meta_var_realdev }
+                [META_ID(DEV)]                  = META_FUNC(var_dev),
+                [META_ID(INDEV)]                = META_FUNC(var_indev),
+                [META_ID(REALDEV)]              = META_FUNC(var_realdev),
+                [META_ID(SK_BOUND_IF)]          = META_FUNC(var_sk_bound_if),
         },
         [TCF_META_TYPE_INT] = {
-                [TCF_META_ID_RANDOM]    = { .get = meta_int_random },
-                [TCF_META_ID_LOADAVG_0] = { .get = meta_int_loadavg_0 },
-                [TCF_META_ID_LOADAVG_1] = { .get = meta_int_loadavg_1 },
-                [TCF_META_ID_LOADAVG_2] = { .get = meta_int_loadavg_2 },
-                [TCF_META_ID_DEV]       = { .get = meta_int_dev },
-                [TCF_META_ID_INDEV]     = { .get = meta_int_indev },
-                [TCF_META_ID_REALDEV]   = { .get = meta_int_realdev },
-                [TCF_META_ID_PRIORITY]  = { .get = meta_int_priority },
-                [TCF_META_ID_PROTOCOL]  = { .get = meta_int_protocol },
-                [TCF_META_ID_SECURITY]  = { .get = meta_int_security },
-                [TCF_META_ID_PKTTYPE]   = { .get = meta_int_pkttype },
-                [TCF_META_ID_PKTLEN]    = { .get = meta_int_pktlen },
-                [TCF_META_ID_DATALEN]   = { .get = meta_int_datalen },
-                [TCF_META_ID_MACLEN]    = { .get = meta_int_maclen },
+                [META_ID(RANDOM)]               = META_FUNC(int_random),
+                [META_ID(LOADAVG_0)]            = META_FUNC(int_loadavg_0),
+                [META_ID(LOADAVG_1)]            = META_FUNC(int_loadavg_1),
+                [META_ID(LOADAVG_2)]            = META_FUNC(int_loadavg_2),
+                [META_ID(DEV)]                  = META_FUNC(int_dev),
+                [META_ID(INDEV)]                = META_FUNC(int_indev),
+                [META_ID(REALDEV)]              = META_FUNC(int_realdev),
+                [META_ID(PRIORITY)]             = META_FUNC(int_priority),
+                [META_ID(PROTOCOL)]             = META_FUNC(int_protocol),
+                [META_ID(SECURITY)]             = META_FUNC(int_security),
+                [META_ID(PKTTYPE)]              = META_FUNC(int_pkttype),
+                [META_ID(PKTLEN)]               = META_FUNC(int_pktlen),
+                [META_ID(DATALEN)]              = META_FUNC(int_datalen),
+                [META_ID(MACLEN)]               = META_FUNC(int_maclen),
 #ifdef CONFIG_NETFILTER
-                [TCF_META_ID_NFMARK]    = { .get = meta_int_nfmark },
+                [META_ID(NFMARK)]               = META_FUNC(int_nfmark),
 #endif
-                [TCF_META_ID_TCINDEX]   = { .get = meta_int_tcindex },
+                [META_ID(TCINDEX)]              = META_FUNC(int_tcindex),
 #ifdef CONFIG_NET_CLS_ACT
-                [TCF_META_ID_TCVERDICT] = { .get = meta_int_tcverd },
-                [TCF_META_ID_TCCLASSID] = { .get = meta_int_tcclassid },
+                [META_ID(TCVERDICT)]            = META_FUNC(int_tcverd),
+                [META_ID(TCCLASSID)]            = META_FUNC(int_tcclassid),
 #endif
 #ifdef CONFIG_NET_CLS_ROUTE
-                [TCF_META_ID_RTCLASSID] = { .get = meta_int_rtclassid },
+                [META_ID(RTCLASSID)]            = META_FUNC(int_rtclassid),
 #endif
-                [TCF_META_ID_RTIIF]     = { .get = meta_int_rtiif }
+                [META_ID(RTIIF)]                = META_FUNC(int_rtiif),
+                [META_ID(SK_FAMILY)]            = META_FUNC(int_sk_family),
+                [META_ID(SK_STATE)]             = META_FUNC(int_sk_state),
+                [META_ID(SK_REUSE)]             = META_FUNC(int_sk_reuse),
+                [META_ID(SK_BOUND_IF)]          = META_FUNC(int_sk_bound_if),
+                [META_ID(SK_REFCNT)]            = META_FUNC(int_sk_refcnt),
+                [META_ID(SK_RCVBUF)]            = META_FUNC(int_sk_rcvbuf),
+                [META_ID(SK_SNDBUF)]            = META_FUNC(int_sk_sndbuf),
+                [META_ID(SK_SHUTDOWN)]          = META_FUNC(int_sk_shutdown),
+                [META_ID(SK_PROTO)]             = META_FUNC(int_sk_proto),
+                [META_ID(SK_TYPE)]              = META_FUNC(int_sk_type),
+                [META_ID(SK_RMEM_ALLOC)]        = META_FUNC(int_sk_rmem_alloc),
+                [META_ID(SK_WMEM_ALLOC)]        = META_FUNC(int_sk_wmem_alloc),
+                [META_ID(SK_OMEM_ALLOC)]        = META_FUNC(int_sk_omem_alloc),
+                [META_ID(SK_WMEM_QUEUED)]       = META_FUNC(int_sk_wmem_queued),
+                [META_ID(SK_RCV_QLEN)]          = META_FUNC(int_sk_rcv_qlen),
+                [META_ID(SK_SND_QLEN)]          = META_FUNC(int_sk_snd_qlen),
+                [META_ID(SK_ERR_QLEN)]          = META_FUNC(int_sk_err_qlen),
+                [META_ID(SK_FORWARD_ALLOCS)]    = META_FUNC(int_sk_fwd_alloc),
+                [META_ID(SK_ALLOCS)]            = META_FUNC(int_sk_alloc),
+                [META_ID(SK_ROUTE_CAPS)]        = META_FUNC(int_sk_route_caps),
+                [META_ID(SK_HASHENT)]           = META_FUNC(int_sk_hashent),
+                [META_ID(SK_LINGERTIME)]        = META_FUNC(int_sk_lingertime),
+                [META_ID(SK_ACK_BACKLOG)]       = META_FUNC(int_sk_ack_bl),
+                [META_ID(SK_MAX_ACK_BACKLOG)]   = META_FUNC(int_sk_max_ack_bl),
+                [META_ID(SK_PRIO)]              = META_FUNC(int_sk_prio),
+                [META_ID(SK_RCVLOWAT)]          = META_FUNC(int_sk_rcvlowat),
+                [META_ID(SK_RCVTIMEO)]          = META_FUNC(int_sk_rcvtimeo),
+                [META_ID(SK_SNDTIMEO)]          = META_FUNC(int_sk_sndtimeo),
+                [META_ID(SK_SENDMSG_OFF)]       = META_FUNC(int_sk_sendmsg_off),
+                [META_ID(SK_WRITE_PENDING)]     = META_FUNC(int_sk_write_pend),
         }
 };
 
@@ -396,9 +639,9 @@ static int meta_int_compare(struct meta_obj *a, struct meta_obj *b)
         /* Let gcc optimize it, the unlikely is not really based on
          * some numbers but jump free code for mismatches seems
          * more logical. */
-        if (unlikely(a == b))
+        if (unlikely(a->value == b->value))
                 return 0;
-        else if (a < b)
+        else if (a->value < b->value)
                 return -1;
         else
                 return 1;
diff --git a/net/sched/em_text.c b/net/sched/em_text.c
new file mode 100644
index 000000000000..873840d8d072
--- /dev/null
+++ b/net/sched/em_text.c
@@ -0,0 +1,157 @@
+/*
+ * net/sched/em_text.c  Textsearch ematch
+ *
+ *              This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU General Public License
+ *              as published by the Free Software Foundation; either version
+ *              2 of the License, or (at your option) any later version.
+ *
+ * Authors:     Thomas Graf <tgraf@suug.ch>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/skbuff.h>
+#include <linux/textsearch.h>
+#include <linux/tc_ematch/tc_em_text.h>
+#include <net/pkt_cls.h>
+
+struct text_match
+{
+        u16                     from_offset;
+        u16                     to_offset;
+        u8                      from_layer;
+        u8                      to_layer;
+        struct ts_config        *config;
+};
+
+#define EM_TEXT_PRIV(m) ((struct text_match *) (m)->data)
+
+static int em_text_match(struct sk_buff *skb, struct tcf_ematch *m,
+                         struct tcf_pkt_info *info)
+{
+        struct text_match *tm = EM_TEXT_PRIV(m);
+        int from, to;
+        struct ts_state state;
+
+        from = tcf_get_base_ptr(skb, tm->from_layer) - skb->data;
+        from += tm->from_offset;
+
+        to = tcf_get_base_ptr(skb, tm->to_layer) - skb->data;
+        to += tm->to_offset;
+
+        return skb_find_text(skb, from, to, tm->config, &state) != UINT_MAX;
+}
+
+static int em_text_change(struct tcf_proto *tp, void *data, int len,
+                          struct tcf_ematch *m)
+{
+        struct text_match *tm;
+        struct tcf_em_text *conf = data;
+        struct ts_config *ts_conf;
+        int flags = 0;
+
+        printk("Configuring text: %s from %d:%d to %d:%d len %d\n", conf->algo, conf->from_offset,
+            conf->from_layer, conf->to_offset, conf->to_layer, conf->pattern_len);
+
+        if (len < sizeof(*conf) || len < (sizeof(*conf) + conf->pattern_len))
+                return -EINVAL;
+
+        if (conf->from_layer > conf->to_layer)
+                return -EINVAL;
+
+        if (conf->from_layer == conf->to_layer &&
+            conf->from_offset > conf->to_offset)
+                return -EINVAL;
+
+retry:
+        ts_conf = textsearch_prepare(conf->algo, (u8 *) conf + sizeof(*conf),
+                                     conf->pattern_len, GFP_KERNEL, flags);
+
+        if (flags & TS_AUTOLOAD)
+                rtnl_lock();
+
+        if (IS_ERR(ts_conf)) {
+                if (PTR_ERR(ts_conf) == -ENOENT && !(flags & TS_AUTOLOAD)) {
+                        rtnl_unlock();
+                        flags |= TS_AUTOLOAD;
+                        goto retry;
+                } else
+                        return PTR_ERR(ts_conf);
+        } else if (flags & TS_AUTOLOAD) {
+                textsearch_destroy(ts_conf);
+                return -EAGAIN;
+        }
+
+        tm = kmalloc(sizeof(*tm), GFP_KERNEL);
+        if (tm == NULL) {
+                textsearch_destroy(ts_conf);
+                return -ENOBUFS;
+        }
+
+        tm->from_offset = conf->from_offset;
+        tm->to_offset   = conf->to_offset;
+        tm->from_layer  = conf->from_layer;
+        tm->to_layer    = conf->to_layer;
+        tm->config      = ts_conf;
+
+        m->datalen = sizeof(*tm);
+        m->data = (unsigned long) tm;
+
+        return 0;
+}
+
+static void em_text_destroy(struct tcf_proto *tp, struct tcf_ematch *m)
+{
+        textsearch_destroy(EM_TEXT_PRIV(m)->config);
+}
+
+static int em_text_dump(struct sk_buff *skb, struct tcf_ematch *m)
+{
+        struct text_match *tm = EM_TEXT_PRIV(m);
+        struct tcf_em_text conf;
+
+        strncpy(conf.algo, tm->config->ops->name, sizeof(conf.algo) - 1);
+        conf.from_offset = tm->from_offset;
+        conf.to_offset = tm->to_offset;
+        conf.from_layer = tm->from_layer;
+        conf.to_layer = tm->to_layer;
+        conf.pattern_len = textsearch_get_pattern_len(tm->config);
+        conf.pad = 0;
+
+        RTA_PUT_NOHDR(skb, sizeof(conf), &conf);
+        RTA_APPEND(skb, conf.pattern_len, textsearch_get_pattern(tm->config));
+        return 0;
+
+rtattr_failure:
+        return -1;
+}               
+
+static struct tcf_ematch_ops em_text_ops = {
+        .kind     = TCF_EM_TEXT,
+        .change   = em_text_change,
+        .match    = em_text_match,
+        .destroy  = em_text_destroy,
+        .dump     = em_text_dump,
+        .owner    = THIS_MODULE,
+        .link     = LIST_HEAD_INIT(em_text_ops.link)
+};
+
+static int __init init_em_text(void)
+{
+        return tcf_em_register(&em_text_ops);
+}
+
+static void __exit exit_em_text(void) 
+{
+        tcf_em_unregister(&em_text_ops);
+}
+
+MODULE_LICENSE("GPL");
+
+module_init(init_em_text);
+module_exit(exit_em_text);
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 07977f8f2679..97c1c75d5c78 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -760,15 +760,14 @@ graft:
 }
 
 static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
-                         u32 pid, u32 seq, unsigned flags, int event)
+                         u32 pid, u32 seq, u16 flags, int event)
 {
         struct tcmsg *tcm;
         struct nlmsghdr  *nlh;
         unsigned char    *b = skb->tail;
         struct gnet_dump d;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*tcm));
-        nlh->nlmsg_flags = flags;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
         tcm = NLMSG_DATA(nlh);
         tcm->tcm_family = AF_UNSPEC;
         tcm->tcm_ifindex = q->dev->ifindex;
@@ -997,7 +996,7 @@ out:
 
 static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
                           unsigned long cl,
-                          u32 pid, u32 seq, unsigned flags, int event)
+                          u32 pid, u32 seq, u16 flags, int event)
 {
         struct tcmsg *tcm;
         struct nlmsghdr  *nlh;
@@ -1005,8 +1004,7 @@ static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
         struct gnet_dump d;
         struct Qdisc_class_ops *cl_ops = q->ops->cl_ops;
 
-        nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*tcm));
-        nlh->nlmsg_flags = flags;
+        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
         tcm = NLMSG_DATA(nlh);
         tcm->tcm_family = AF_UNSPEC;
         tcm->tcm_ifindex = q->dev->ifindex;
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 8a3db9d95bab..13e0e7b3856b 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -18,7 +18,7 @@
 #include <asm/byteorder.h>
 
 
-#if 1 /* control */
+#if 0 /* control */
 #define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
 #else
 #define DPRINTK(format,args...)
@@ -31,7 +31,7 @@
 #endif
 
 
-#define PRIV(sch) qdisc_priv(sch)
+#define PRIV(sch) ((struct dsmark_qdisc_data *) qdisc_priv(sch))
 
 
 /*
@@ -55,145 +55,163 @@
 struct dsmark_qdisc_data {
         struct Qdisc            *q;
         struct tcf_proto        *filter_list;
-        __u8                    *mask;  /* "owns" the array */
-        __u8                    *value;
-        __u16                   indices;
-        __u32                   default_index;  /* index range is 0...0xffff */
+        u8                      *mask;  /* "owns" the array */
+        u8                      *value;
+        u16                     indices;
+        u32                     default_index;  /* index range is 0...0xffff */
         int                     set_tc_index;
 };
 
+static inline int dsmark_valid_indices(u16 indices)
+{
+        while (indices != 1) {
+                if (indices & 1)
+                        return 0;
+                indices >>= 1;
+        }
+ 
+        return 1;
+}
 
-/* ------------------------- Class/flow operations ------------------------- */
+static inline int dsmark_valid_index(struct dsmark_qdisc_data *p, u16 index)
+{
+        return (index <= p->indices && index > 0);
+}
 
+/* ------------------------- Class/flow operations ------------------------- */
 
-static int dsmark_graft(struct Qdisc *sch,unsigned long arg,
-    struct Qdisc *new,struct Qdisc **old)
+static int dsmark_graft(struct Qdisc *sch, unsigned long arg,
+                        struct Qdisc *new, struct Qdisc **old)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
 
-        DPRINTK("dsmark_graft(sch %p,[qdisc %p],new %p,old %p)\n",sch,p,new,
-            old);
-        if (!new)
-                new = &noop_qdisc;
+        DPRINTK("dsmark_graft(sch %p,[qdisc %p],new %p,old %p)\n",
+                sch, p, new, old);
+
+        if (new == NULL) {
+                new = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops);
+                if (new == NULL)
+                        new = &noop_qdisc;
+        }
+
         sch_tree_lock(sch);
-        *old = xchg(&p->q,new);
-        if (*old)
-                qdisc_reset(*old);
+        *old = xchg(&p->q, new);
+        qdisc_reset(*old);
         sch->q.qlen = 0;
-        sch_tree_unlock(sch); /* @@@ move up ? */
+        sch_tree_unlock(sch);
+
         return 0;
 }
 
-
 static struct Qdisc *dsmark_leaf(struct Qdisc *sch, unsigned long arg)
 {
-        struct dsmark_qdisc_data *p = PRIV(sch);
-
-        return p->q;
+        return PRIV(sch)->q;
 }
 
-
-static unsigned long dsmark_get(struct Qdisc *sch,u32 classid)
+static unsigned long dsmark_get(struct Qdisc *sch, u32 classid)
 {
-        struct dsmark_qdisc_data *p __attribute__((unused)) = PRIV(sch);
+        DPRINTK("dsmark_get(sch %p,[qdisc %p],classid %x)\n",
+                sch, PRIV(sch), classid);
 
-        DPRINTK("dsmark_get(sch %p,[qdisc %p],classid %x)\n",sch,p,classid);
-        return TC_H_MIN(classid)+1;
+        return TC_H_MIN(classid) + 1;
 }
 
-
 static unsigned long dsmark_bind_filter(struct Qdisc *sch,
-    unsigned long parent, u32 classid)
+                                        unsigned long parent, u32 classid)
 {
-        return dsmark_get(sch,classid);
+        return dsmark_get(sch, classid);
 }
 
-
 static void dsmark_put(struct Qdisc *sch, unsigned long cl)
 {
 }
 
-
 static int dsmark_change(struct Qdisc *sch, u32 classid, u32 parent,
-    struct rtattr **tca, unsigned long *arg)
+                         struct rtattr **tca, unsigned long *arg)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
         struct rtattr *opt = tca[TCA_OPTIONS-1];
         struct rtattr *tb[TCA_DSMARK_MAX];
+        int err = -EINVAL;
+        u8 mask = 0;
 
         DPRINTK("dsmark_change(sch %p,[qdisc %p],classid %x,parent %x),"
-            "arg 0x%lx\n",sch,p,classid,parent,*arg);
-        if (*arg > p->indices)
-                return -ENOENT;
-        if (!opt || rtattr_parse_nested(tb, TCA_DSMARK_MAX, opt))
-                return -EINVAL;
-        if (tb[TCA_DSMARK_MASK-1]) {
-                if (!RTA_PAYLOAD(tb[TCA_DSMARK_MASK-1]))
-                        return -EINVAL;
-                p->mask[*arg-1] = *(__u8 *) RTA_DATA(tb[TCA_DSMARK_MASK-1]);
-        }
-        if (tb[TCA_DSMARK_VALUE-1]) {
-                if (!RTA_PAYLOAD(tb[TCA_DSMARK_VALUE-1]))
-                        return -EINVAL;
-                p->value[*arg-1] = *(__u8 *) RTA_DATA(tb[TCA_DSMARK_VALUE-1]);
+                "arg 0x%lx\n", sch, p, classid, parent, *arg);
+
+        if (!dsmark_valid_index(p, *arg)) {
+                err = -ENOENT;
+                goto rtattr_failure;
         }
-        return 0;
-}
 
+        if (!opt || rtattr_parse_nested(tb, TCA_DSMARK_MAX, opt))
+                goto rtattr_failure;
+
+        if (tb[TCA_DSMARK_MASK-1])
+                mask = RTA_GET_U8(tb[TCA_DSMARK_MASK-1]);
+
+        if (tb[TCA_DSMARK_VALUE-1])
+                p->value[*arg-1] = RTA_GET_U8(tb[TCA_DSMARK_VALUE-1]);
+                
+        if (tb[TCA_DSMARK_MASK-1])
+                p->mask[*arg-1] = mask;
 
-static int dsmark_delete(struct Qdisc *sch,unsigned long arg)
+        err = 0;
+
+rtattr_failure:
+        return err;
+}
+
+static int dsmark_delete(struct Qdisc *sch, unsigned long arg)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
 
-        if (!arg || arg > p->indices)
+        if (!dsmark_valid_index(p, arg))
                 return -EINVAL;
+        
         p->mask[arg-1] = 0xff;
         p->value[arg-1] = 0;
+
         return 0;
 }
 
-
 static void dsmark_walk(struct Qdisc *sch,struct qdisc_walker *walker)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
         int i;
 
-        DPRINTK("dsmark_walk(sch %p,[qdisc %p],walker %p)\n",sch,p,walker);
+        DPRINTK("dsmark_walk(sch %p,[qdisc %p],walker %p)\n", sch, p, walker);
+
         if (walker->stop)
                 return;
+
         for (i = 0; i < p->indices; i++) {
                 if (p->mask[i] == 0xff && !p->value[i])
-                        continue;
+                        goto ignore;
                 if (walker->count >= walker->skip) {
                         if (walker->fn(sch, i+1, walker) < 0) {
                                 walker->stop = 1;
                                 break;
                         }
                 }
-                walker->count++;
+ignore:         
+                walker->count++;
         }
 }
 
-
 static struct tcf_proto **dsmark_find_tcf(struct Qdisc *sch,unsigned long cl)
 {
-        struct dsmark_qdisc_data *p = PRIV(sch);
-
-        return &p->filter_list;
+        return &PRIV(sch)->filter_list;
 }
 
-
 /* --------------------------- Qdisc operations ---------------------------- */
 
-
 static int dsmark_enqueue(struct sk_buff *skb,struct Qdisc *sch)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
-        struct tcf_result res;
-        int result;
-        int ret = NET_XMIT_POLICED;
+        int err;
+
+        D2PRINTK("dsmark_enqueue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p);
 
-        D2PRINTK("dsmark_enqueue(skb %p,sch %p,[qdisc %p])\n",skb,sch,p);
         if (p->set_tc_index) {
                 /* FIXME: Safe with non-linear skbs? --RR */
                 switch (skb->protocol) {
@@ -210,17 +228,21 @@ static int dsmark_enqueue(struct sk_buff *skb,struct Qdisc *sch)
                                 break;
                 };
         }
-        result = TC_POLICE_OK; /* be nice to gcc */
-        if (TC_H_MAJ(skb->priority) == sch->handle) {
+
+        if (TC_H_MAJ(skb->priority) == sch->handle)
                 skb->tc_index = TC_H_MIN(skb->priority);
-        } else {
-                result = tc_classify(skb,p->filter_list,&res);
-                D2PRINTK("result %d class 0x%04x\n",result,res.classid);
+        else {
+                struct tcf_result res;
+                int result = tc_classify(skb, p->filter_list, &res);
+
+                D2PRINTK("result %d class 0x%04x\n", result, res.classid);
+
                 switch (result) {
 #ifdef CONFIG_NET_CLS_POLICE
                         case TC_POLICE_SHOT:
                                 kfree_skb(skb);
-                                break;
+                                sch->qstats.drops++;
+                                return NET_XMIT_POLICED;
 #if 0
                         case TC_POLICE_RECLASSIFY:
                                 /* FIXME: what to do here ??? */
@@ -237,43 +259,45 @@ static int dsmark_enqueue(struct sk_buff *skb,struct Qdisc *sch)
                                 break;
                 };
         }
-        if (
-#ifdef CONFIG_NET_CLS_POLICE
-            result == TC_POLICE_SHOT ||
-#endif
 
-            ((ret = p->q->enqueue(skb,p->q)) != 0)) {
+        err = p->q->enqueue(skb,p->q);
+        if (err != NET_XMIT_SUCCESS) {
                 sch->qstats.drops++;
-                return ret;
+                return err;
         }
+
         sch->bstats.bytes += skb->len;
         sch->bstats.packets++;
         sch->q.qlen++;
-        return ret;
-}
 
+        return NET_XMIT_SUCCESS;
+}
 
 static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
         struct sk_buff *skb;
-        int index;
+        u32 index;
+
+        D2PRINTK("dsmark_dequeue(sch %p,[qdisc %p])\n", sch, p);
 
-        D2PRINTK("dsmark_dequeue(sch %p,[qdisc %p])\n",sch,p);
         skb = p->q->ops->dequeue(p->q);
-        if (!skb)
+        if (skb == NULL)
                 return NULL;
+
         sch->q.qlen--;
-        index = skb->tc_index & (p->indices-1);
-        D2PRINTK("index %d->%d\n",skb->tc_index,index);
+
+        index = skb->tc_index & (p->indices - 1);
+        D2PRINTK("index %d->%d\n", skb->tc_index, index);
+
         switch (skb->protocol) {
                 case __constant_htons(ETH_P_IP):
-                        ipv4_change_dsfield(skb->nh.iph,
-                            p->mask[index],p->value[index]);
+                        ipv4_change_dsfield(skb->nh.iph, p->mask[index],
+                                            p->value[index]);
                         break;
                 case __constant_htons(ETH_P_IPV6):
-                        ipv6_change_dsfield(skb->nh.ipv6h,
-                            p->mask[index],p->value[index]);
+                        ipv6_change_dsfield(skb->nh.ipv6h, p->mask[index],
+                                            p->value[index]);
                         break;
                 default:
                         /*
@@ -287,152 +311,162 @@ static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
                                        htons(skb->protocol));
                         break;
         };
+
         return skb;
 }
 
-
 static int dsmark_requeue(struct sk_buff *skb,struct Qdisc *sch)
 {
-        int ret;
         struct dsmark_qdisc_data *p = PRIV(sch);
+        int err;
 
-        D2PRINTK("dsmark_requeue(skb %p,sch %p,[qdisc %p])\n",skb,sch,p);
-        if ((ret = p->q->ops->requeue(skb, p->q)) == 0) {
-                sch->q.qlen++;
-                sch->qstats.requeues++;
-                return 0;
+        D2PRINTK("dsmark_requeue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p);
+
+        err = p->q->ops->requeue(skb, p->q);
+        if (err != NET_XMIT_SUCCESS) {
+                sch->qstats.drops++;
+                return err;
         }
-        sch->qstats.drops++;
-        return ret;
-}
 
+        sch->q.qlen++;
+        sch->qstats.requeues++;
+
+        return NET_XMIT_SUCCESS;
+}
 
 static unsigned int dsmark_drop(struct Qdisc *sch)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
         unsigned int len;
         
-        DPRINTK("dsmark_reset(sch %p,[qdisc %p])\n",sch,p);
-        if (!p->q->ops->drop)
-                return 0;
-        if (!(len = p->q->ops->drop(p->q)))
+        DPRINTK("dsmark_reset(sch %p,[qdisc %p])\n", sch, p);
+
+        if (p->q->ops->drop == NULL)
                 return 0;
-        sch->q.qlen--;
+
+        len = p->q->ops->drop(p->q);
+        if (len)
+                sch->q.qlen--;
+
         return len;
 }
 
-
-static int dsmark_init(struct Qdisc *sch,struct rtattr *opt)
+static int dsmark_init(struct Qdisc *sch, struct rtattr *opt)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
         struct rtattr *tb[TCA_DSMARK_MAX];
-        __u16 tmp;
-
-        DPRINTK("dsmark_init(sch %p,[qdisc %p],opt %p)\n",sch,p,opt);
-        if (!opt ||
-            rtattr_parse(tb,TCA_DSMARK_MAX,RTA_DATA(opt),RTA_PAYLOAD(opt)) < 0 ||
-            !tb[TCA_DSMARK_INDICES-1] ||
-            RTA_PAYLOAD(tb[TCA_DSMARK_INDICES-1]) < sizeof(__u16))
-                return -EINVAL;
-        p->indices = *(__u16 *) RTA_DATA(tb[TCA_DSMARK_INDICES-1]);
-        if (!p->indices)
-                return -EINVAL;
-        for (tmp = p->indices; tmp != 1; tmp >>= 1) {
-                if (tmp & 1)
-                        return -EINVAL;
-        }
-        p->default_index = NO_DEFAULT_INDEX;
-        if (tb[TCA_DSMARK_DEFAULT_INDEX-1]) {
-                if (RTA_PAYLOAD(tb[TCA_DSMARK_DEFAULT_INDEX-1]) < sizeof(__u16))
-                        return -EINVAL;
-                p->default_index =
-                    *(__u16 *) RTA_DATA(tb[TCA_DSMARK_DEFAULT_INDEX-1]);
+        int err = -EINVAL;
+        u32 default_index = NO_DEFAULT_INDEX;
+        u16 indices;
+        u8 *mask;
+
+        DPRINTK("dsmark_init(sch %p,[qdisc %p],opt %p)\n", sch, p, opt);
+
+        if (!opt || rtattr_parse_nested(tb, TCA_DSMARK_MAX, opt) < 0)
+                goto errout;
+
+        indices = RTA_GET_U16(tb[TCA_DSMARK_INDICES-1]);
+        if (!indices || !dsmark_valid_indices(indices))
+                goto errout;
+
+        if (tb[TCA_DSMARK_DEFAULT_INDEX-1])
+                default_index = RTA_GET_U16(tb[TCA_DSMARK_DEFAULT_INDEX-1]);
+
+        mask = kmalloc(indices * 2, GFP_KERNEL);
+        if (mask == NULL) {
+                err = -ENOMEM;
+                goto errout;
         }
-        p->set_tc_index = !!tb[TCA_DSMARK_SET_TC_INDEX-1];
-        p->mask = kmalloc(p->indices*2,GFP_KERNEL);
-        if (!p->mask)
-                return -ENOMEM;
-        p->value = p->mask+p->indices;
-        memset(p->mask,0xff,p->indices);
-        memset(p->value,0,p->indices);
-        if (!(p->q = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops)))
+
+        p->mask = mask;
+        memset(p->mask, 0xff, indices);
+
+        p->value = p->mask + indices;
+        memset(p->value, 0, indices);
+
+        p->indices = indices;
+        p->default_index = default_index;
+        p->set_tc_index = RTA_GET_FLAG(tb[TCA_DSMARK_SET_TC_INDEX-1]);
+
+        p->q = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops);
+        if (p->q == NULL)
                 p->q = &noop_qdisc;
-        DPRINTK("dsmark_init: qdisc %p\n",&p->q);
-        return 0;
-}
 
+        DPRINTK("dsmark_init: qdisc %p\n", p->q);
+
+        err = 0;
+errout:
+rtattr_failure:
+        return err;
+}
 
 static void dsmark_reset(struct Qdisc *sch)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
 
-        DPRINTK("dsmark_reset(sch %p,[qdisc %p])\n",sch,p);
+        DPRINTK("dsmark_reset(sch %p,[qdisc %p])\n", sch, p);
         qdisc_reset(p->q);
         sch->q.qlen = 0;
 }
 
-
 static void dsmark_destroy(struct Qdisc *sch)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
         struct tcf_proto *tp;
 
-        DPRINTK("dsmark_destroy(sch %p,[qdisc %p])\n",sch,p);
+        DPRINTK("dsmark_destroy(sch %p,[qdisc %p])\n", sch, p);
+
         while (p->filter_list) {
                 tp = p->filter_list;
                 p->filter_list = tp->next;
                 tcf_destroy(tp);
         }
+
         qdisc_destroy(p->q);
         kfree(p->mask);
 }
 
-
 static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl,
-    struct sk_buff *skb, struct tcmsg *tcm)
+                             struct sk_buff *skb, struct tcmsg *tcm)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
-        unsigned char *b = skb->tail;
-        struct rtattr *rta;
+        struct rtattr *opts = NULL;
+
+        DPRINTK("dsmark_dump_class(sch %p,[qdisc %p],class %ld\n", sch, p, cl);
 
-        DPRINTK("dsmark_dump_class(sch %p,[qdisc %p],class %ld\n",sch,p,cl);
-        if (!cl || cl > p->indices)
+        if (!dsmark_valid_index(p, cl))
                 return -EINVAL;
-        tcm->tcm_handle = TC_H_MAKE(TC_H_MAJ(sch->handle),cl-1);
-        rta = (struct rtattr *) b;
-        RTA_PUT(skb,TCA_OPTIONS,0,NULL);
-        RTA_PUT(skb,TCA_DSMARK_MASK,1,&p->mask[cl-1]);
-        RTA_PUT(skb,TCA_DSMARK_VALUE,1,&p->value[cl-1]);
-        rta->rta_len = skb->tail-b;
-        return skb->len;
+
+        tcm->tcm_handle = TC_H_MAKE(TC_H_MAJ(sch->handle), cl-1);
+
+        opts = RTA_NEST(skb, TCA_OPTIONS);
+        RTA_PUT_U8(skb,TCA_DSMARK_MASK, p->mask[cl-1]);
+        RTA_PUT_U8(skb,TCA_DSMARK_VALUE, p->value[cl-1]);
+
+        return RTA_NEST_END(skb, opts);
 
 rtattr_failure:
-        skb_trim(skb,b-skb->data);
-        return -1;
+        return RTA_NEST_CANCEL(skb, opts);
 }
 
 static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
 {
         struct dsmark_qdisc_data *p = PRIV(sch);
-        unsigned char *b = skb->tail;
-        struct rtattr *rta;
+        struct rtattr *opts = NULL;
 
-        rta = (struct rtattr *) b;
-        RTA_PUT(skb,TCA_OPTIONS,0,NULL);
-        RTA_PUT(skb,TCA_DSMARK_INDICES,sizeof(__u16),&p->indices);
-        if (p->default_index != NO_DEFAULT_INDEX) {
-                __u16 tmp = p->default_index;
+        opts = RTA_NEST(skb, TCA_OPTIONS);
+        RTA_PUT_U16(skb, TCA_DSMARK_INDICES, p->indices);
+
+        if (p->default_index != NO_DEFAULT_INDEX)
+                RTA_PUT_U16(skb, TCA_DSMARK_DEFAULT_INDEX, p->default_index);
 
-                RTA_PUT(skb,TCA_DSMARK_DEFAULT_INDEX, sizeof(__u16), &tmp);
-        }
         if (p->set_tc_index)
-                RTA_PUT(skb, TCA_DSMARK_SET_TC_INDEX, 0, NULL);
-        rta->rta_len = skb->tail-b;
-        return skb->len;
+                RTA_PUT_FLAG(skb, TCA_DSMARK_SET_TC_INDEX);
+
+        return RTA_NEST_END(skb, opts);
 
 rtattr_failure:
-        skb_trim(skb,b-skb->data);
-        return -1;
+        return RTA_NEST_CANCEL(skb, opts);
 }
 
 static struct Qdisc_class_ops dsmark_class_ops = {
@@ -470,10 +504,13 @@ static int __init dsmark_module_init(void)
 {
         return register_qdisc(&dsmark_qdisc_ops);
 }
+
 static void __exit dsmark_module_exit(void) 
 {
         unregister_qdisc(&dsmark_qdisc_ops);
 }
+
 module_init(dsmark_module_init)
 module_exit(dsmark_module_exit)
+
 MODULE_LICENSE("GPL");
diff --git a/net/sched/sch_fifo.c b/net/sched/sch_fifo.c
index 4888305c96da..033083bf0e74 100644
--- a/net/sched/sch_fifo.c
+++ b/net/sched/sch_fifo.c
@@ -11,131 +11,38 @@
 
 #include <linux/config.h>
 #include <linux/module.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <linux/bitops.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/in.h>
 #include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/if_ether.h>
-#include <linux/inet.h>
 #include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/notifier.h>
-#include <net/ip.h>
-#include <net/route.h>
 #include <linux/skbuff.h>
-#include <net/sock.h>
 #include <net/pkt_sched.h>
 
 /* 1 band FIFO pseudo-"scheduler" */
 
 struct fifo_sched_data
 {
-        unsigned limit;
+        u32 limit;
 };
 
-static int
-bfifo_enqueue(struct sk_buff *skb, struct Qdisc* sch)
+static int bfifo_enqueue(struct sk_buff *skb, struct Qdisc* sch)
 {
         struct fifo_sched_data *q = qdisc_priv(sch);
 
-        if (sch->qstats.backlog + skb->len <= q->limit) {
-                __skb_queue_tail(&sch->q, skb);
-                sch->qstats.backlog += skb->len;
-                sch->bstats.bytes += skb->len;
-                sch->bstats.packets++;
-                return 0;
-        }
-        sch->qstats.drops++;
-#ifdef CONFIG_NET_CLS_POLICE
-        if (sch->reshape_fail==NULL || sch->reshape_fail(skb, sch))
-#endif
-                kfree_skb(skb);
-        return NET_XMIT_DROP;
-}
-
-static int
-bfifo_requeue(struct sk_buff *skb, struct Qdisc* sch)
-{
-        __skb_queue_head(&sch->q, skb);
-        sch->qstats.backlog += skb->len;
-        sch->qstats.requeues++;
-        return 0;
-}
-
-static struct sk_buff *
-bfifo_dequeue(struct Qdisc* sch)
-{
-        struct sk_buff *skb;
+        if (likely(sch->qstats.backlog + skb->len <= q->limit))
+                return qdisc_enqueue_tail(skb, sch);
 
-        skb = __skb_dequeue(&sch->q);
-        if (skb)
-                sch->qstats.backlog -= skb->len;
-        return skb;
+        return qdisc_reshape_fail(skb, sch);
 }
 
-static unsigned int 
-fifo_drop(struct Qdisc* sch)
-{
-        struct sk_buff *skb;
-
-        skb = __skb_dequeue_tail(&sch->q);
-        if (skb) {
-                unsigned int len = skb->len;
-                sch->qstats.backlog -= len;
-                kfree_skb(skb);
-                return len;
-        }
-        return 0;
-}
-
-static void
-fifo_reset(struct Qdisc* sch)
-{
-        skb_queue_purge(&sch->q);
-        sch->qstats.backlog = 0;
-}
-
-static int
-pfifo_enqueue(struct sk_buff *skb, struct Qdisc* sch)
+static int pfifo_enqueue(struct sk_buff *skb, struct Qdisc* sch)
 {
         struct fifo_sched_data *q = qdisc_priv(sch);
 
-        if (sch->q.qlen < q->limit) {
-                __skb_queue_tail(&sch->q, skb);
-                sch->bstats.bytes += skb->len;
-                sch->bstats.packets++;
-                return 0;
-        }
-        sch->qstats.drops++;
-#ifdef CONFIG_NET_CLS_POLICE
-        if (sch->reshape_fail==NULL || sch->reshape_fail(skb, sch))
-#endif
-                kfree_skb(skb);
-        return NET_XMIT_DROP;
-}
-
-static int
-pfifo_requeue(struct sk_buff *skb, struct Qdisc* sch)
-{
-        __skb_queue_head(&sch->q, skb);
-        sch->qstats.requeues++;
-        return 0;
-}
-
+        if (likely(skb_queue_len(&sch->q) < q->limit))
+                return qdisc_enqueue_tail(skb, sch);
 
-static struct sk_buff *
-pfifo_dequeue(struct Qdisc* sch)
-{
-        return __skb_dequeue(&sch->q);
+        return qdisc_reshape_fail(skb, sch);
 }
 
 static int fifo_init(struct Qdisc *sch, struct rtattr *opt)
@@ -143,66 +50,59 @@ static int fifo_init(struct Qdisc *sch, struct rtattr *opt)
         struct fifo_sched_data *q = qdisc_priv(sch);
 
         if (opt == NULL) {
-                unsigned int limit = sch->dev->tx_queue_len ? : 1;
+                u32 limit = sch->dev->tx_queue_len ? : 1;
 
                 if (sch->ops == &bfifo_qdisc_ops)
-                        q->limit = limit*sch->dev->mtu;
-                else    
-                        q->limit = limit;
+                        limit *= sch->dev->mtu;
+
+                q->limit = limit;
         } else {
                 struct tc_fifo_qopt *ctl = RTA_DATA(opt);
-                if (opt->rta_len < RTA_LENGTH(sizeof(*ctl)))
+
+                if (RTA_PAYLOAD(opt) < sizeof(*ctl))
                         return -EINVAL;
+
                 q->limit = ctl->limit;
         }
+
         return 0;
 }
 
 static int fifo_dump(struct Qdisc *sch, struct sk_buff *skb)
 {
         struct fifo_sched_data *q = qdisc_priv(sch);
-        unsigned char    *b = skb->tail;
-        struct tc_fifo_qopt opt;
+        struct tc_fifo_qopt opt = { .limit = q->limit };
 
-        opt.limit = q->limit;
         RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
-
         return skb->len;
 
 rtattr_failure:
-        skb_trim(skb, b - skb->data);
         return -1;
 }
 
 struct Qdisc_ops pfifo_qdisc_ops = {
-        .next           =       NULL,
-        .cl_ops         =       NULL,
         .id             =       "pfifo",
         .priv_size      =       sizeof(struct fifo_sched_data),
         .enqueue        =       pfifo_enqueue,
-        .dequeue        =       pfifo_dequeue,
-        .requeue        =       pfifo_requeue,
-        .drop           =       fifo_drop,
+        .dequeue        =       qdisc_dequeue_head,
+        .requeue        =       qdisc_requeue,
+        .drop           =       qdisc_queue_drop,
         .init           =       fifo_init,
-        .reset          =       fifo_reset,
-        .destroy        =       NULL,
+        .reset          =       qdisc_reset_queue,
         .change         =       fifo_init,
         .dump           =       fifo_dump,
         .owner          =       THIS_MODULE,
 };
 
 struct Qdisc_ops bfifo_qdisc_ops = {
-        .next           =       NULL,
-        .cl_ops         =       NULL,
         .id             =       "bfifo",
         .priv_size      =       sizeof(struct fifo_sched_data),
         .enqueue        =       bfifo_enqueue,
-        .dequeue        =       bfifo_dequeue,
-        .requeue        =       bfifo_requeue,
-        .drop           =       fifo_drop,
+        .dequeue        =       qdisc_dequeue_head,
+        .requeue        =       qdisc_requeue,
+        .drop           =       qdisc_queue_drop,
         .init           =       fifo_init,
-        .reset          =       fifo_reset,
-        .destroy        =       NULL,
+        .reset          =       qdisc_reset_queue,
         .change         =       fifo_init,
         .dump           =       fifo_dump,
         .owner          =       THIS_MODULE,
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 87e48a4e1051..7683b34dc6a9 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -243,31 +243,27 @@ static void dev_watchdog_down(struct net_device *dev)
    cheaper.
  */
 
-static int
-noop_enqueue(struct sk_buff *skb, struct Qdisc * qdisc)
+static int noop_enqueue(struct sk_buff *skb, struct Qdisc * qdisc)
 {
         kfree_skb(skb);
         return NET_XMIT_CN;
 }
 
-static struct sk_buff *
-noop_dequeue(struct Qdisc * qdisc)
+static struct sk_buff *noop_dequeue(struct Qdisc * qdisc)
 {
         return NULL;
 }
 
-static int
-noop_requeue(struct sk_buff *skb, struct Qdisc* qdisc)
+static int noop_requeue(struct sk_buff *skb, struct Qdisc* qdisc)
 {
         if (net_ratelimit())
-                printk(KERN_DEBUG "%s deferred output. It is buggy.\n", skb->dev->name);
+                printk(KERN_DEBUG "%s deferred output. It is buggy.\n",
+                       skb->dev->name);
         kfree_skb(skb);
         return NET_XMIT_CN;
 }
 
 struct Qdisc_ops noop_qdisc_ops = {
-        .next           =       NULL,
-        .cl_ops         =       NULL,
         .id             =       "noop",
         .priv_size      =       0,
         .enqueue        =       noop_enqueue,
@@ -285,8 +281,6 @@ struct Qdisc noop_qdisc = {
 };
 
 static struct Qdisc_ops noqueue_qdisc_ops = {
-        .next           =       NULL,
-        .cl_ops         =       NULL,
         .id             =       "noqueue",
         .priv_size      =       0,
         .enqueue        =       noop_enqueue,
@@ -311,97 +305,87 @@ static const u8 prio2band[TC_PRIO_MAX+1] =
    generic prio+fifo combination.
  */
 
-static int
-pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc* qdisc)
+#define PFIFO_FAST_BANDS 3
+
+static inline struct sk_buff_head *prio2list(struct sk_buff *skb,
+                                             struct Qdisc *qdisc)
 {
         struct sk_buff_head *list = qdisc_priv(qdisc);
+        return list + prio2band[skb->priority & TC_PRIO_MAX];
+}
 
-        list += prio2band[skb->priority&TC_PRIO_MAX];
+static int pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc* qdisc)
+{
+        struct sk_buff_head *list = prio2list(skb, qdisc);
 
-        if (list->qlen < qdisc->dev->tx_queue_len) {
-                __skb_queue_tail(list, skb);
+        if (skb_queue_len(list) < qdisc->dev->tx_queue_len) {
                 qdisc->q.qlen++;
-                qdisc->bstats.bytes += skb->len;
-                qdisc->bstats.packets++;
-                return 0;
+                return __qdisc_enqueue_tail(skb, qdisc, list);
         }
-        qdisc->qstats.drops++;
-        kfree_skb(skb);
-        return NET_XMIT_DROP;
+
+        return qdisc_drop(skb, qdisc);
 }
 
-static struct sk_buff *
-pfifo_fast_dequeue(struct Qdisc* qdisc)
+static struct sk_buff *pfifo_fast_dequeue(struct Qdisc* qdisc)
 {
         int prio;
         struct sk_buff_head *list = qdisc_priv(qdisc);
-        struct sk_buff *skb;
 
-        for (prio = 0; prio < 3; prio++, list++) {
-                skb = __skb_dequeue(list);
+        for (prio = 0; prio < PFIFO_FAST_BANDS; prio++, list++) {
+                struct sk_buff *skb = __qdisc_dequeue_head(qdisc, list);
                 if (skb) {
                         qdisc->q.qlen--;
                         return skb;
                 }
         }
+
         return NULL;
 }
 
-static int
-pfifo_fast_requeue(struct sk_buff *skb, struct Qdisc* qdisc)
+static int pfifo_fast_requeue(struct sk_buff *skb, struct Qdisc* qdisc)
 {
-        struct sk_buff_head *list = qdisc_priv(qdisc);
-
-        list += prio2band[skb->priority&TC_PRIO_MAX];
-
-        __skb_queue_head(list, skb);
         qdisc->q.qlen++;
-        qdisc->qstats.requeues++;
-        return 0;
+        return __qdisc_requeue(skb, qdisc, prio2list(skb, qdisc));
 }
 
-static void
-pfifo_fast_reset(struct Qdisc* qdisc)
+static void pfifo_fast_reset(struct Qdisc* qdisc)
 {
         int prio;
         struct sk_buff_head *list = qdisc_priv(qdisc);
 
-        for (prio=0; prio < 3; prio++)
-                skb_queue_purge(list+prio);
+        for (prio = 0; prio < PFIFO_FAST_BANDS; prio++)
+                __qdisc_reset_queue(qdisc, list + prio);
+
+        qdisc->qstats.backlog = 0;
         qdisc->q.qlen = 0;
 }
 
 static int pfifo_fast_dump(struct Qdisc *qdisc, struct sk_buff *skb)
 {
-        unsigned char    *b = skb->tail;
-        struct tc_prio_qopt opt;
+        struct tc_prio_qopt opt = { .bands = PFIFO_FAST_BANDS };
 
-        opt.bands = 3; 
         memcpy(&opt.priomap, prio2band, TC_PRIO_MAX+1);
         RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
         return skb->len;
 
 rtattr_failure:
-        skb_trim(skb, b - skb->data);
         return -1;
 }
 
 static int pfifo_fast_init(struct Qdisc *qdisc, struct rtattr *opt)
 {
-        int i;
+        int prio;
         struct sk_buff_head *list = qdisc_priv(qdisc);
 
-        for (i=0; i<3; i++)
-                skb_queue_head_init(list+i);
+        for (prio = 0; prio < PFIFO_FAST_BANDS; prio++)
+                skb_queue_head_init(list + prio);
 
         return 0;
 }
 
 static struct Qdisc_ops pfifo_fast_ops = {
-        .next           =       NULL,
-        .cl_ops         =       NULL,
         .id             =       "pfifo_fast",
-        .priv_size      =       3 * sizeof(struct sk_buff_head),
+        .priv_size      =       PFIFO_FAST_BANDS * sizeof(struct sk_buff_head),
         .enqueue        =       pfifo_fast_enqueue,
         .dequeue        =       pfifo_fast_dequeue,
         .requeue        =       pfifo_fast_requeue,
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 663843d97a92..7ae6aa772dab 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -191,10 +191,6 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
         asoc->last_cwr_tsn = asoc->ctsn_ack_point;
         asoc->unack_data = 0;
 
-        SCTP_DEBUG_PRINTK("myctsnap for %s INIT as 0x%x.\n",
-                          asoc->ep->debug_name,
-                          asoc->ctsn_ack_point);
-
         /* ADDIP Section 4.1 Asconf Chunk Procedures
          *
          * When an endpoint has an ASCONF signaled change to be sent to the
@@ -211,6 +207,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
 
         /* Make an empty list of remote transport addresses.  */
         INIT_LIST_HEAD(&asoc->peer.transport_addr_list);
+        asoc->peer.transport_count = 0;
 
         /* RFC 2960 5.1 Normal Establishment of an Association
          *
@@ -288,6 +285,7 @@ struct sctp_association *sctp_association_new(const struct sctp_endpoint *ep,
 
         asoc->base.malloced = 1;
         SCTP_DBG_OBJCNT_INC(assoc);
+        SCTP_DEBUG_PRINTK("Created asoc %p\n", asoc);
 
         return asoc;
 
@@ -356,6 +354,8 @@ void sctp_association_free(struct sctp_association *asoc)
                 sctp_transport_free(transport);
         }
 
+        asoc->peer.transport_count = 0;
+
         /* Free any cached ASCONF_ACK chunk. */
         if (asoc->addip_last_asconf_ack)
                 sctp_chunk_free(asoc->addip_last_asconf_ack);
@@ -400,7 +400,7 @@ void sctp_assoc_set_primary(struct sctp_association *asoc,
         /* If the primary path is changing, assume that the
          * user wants to use this new path.
          */
-        if (transport->active)
+        if (transport->state != SCTP_INACTIVE)
                 asoc->peer.active_path = transport;
 
         /*
@@ -428,10 +428,58 @@ void sctp_assoc_set_primary(struct sctp_association *asoc,
         transport->cacc.next_tsn_at_change = asoc->next_tsn;
 }
 
+/* Remove a transport from an association.  */
+void sctp_assoc_rm_peer(struct sctp_association *asoc,
+                        struct sctp_transport *peer)
+{
+        struct list_head        *pos;
+        struct sctp_transport   *transport;
+
+        SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_rm_peer:association %p addr: ",
+                                 " port: %d\n",
+                                 asoc,
+                                 (&peer->ipaddr),
+                                 peer->ipaddr.v4.sin_port);
+
+        /* If we are to remove the current retran_path, update it
+         * to the next peer before removing this peer from the list.
+         */
+        if (asoc->peer.retran_path == peer)
+                sctp_assoc_update_retran_path(asoc);
+
+        /* Remove this peer from the list. */
+        list_del(&peer->transports);
+
+        /* Get the first transport of asoc. */
+        pos = asoc->peer.transport_addr_list.next;
+        transport = list_entry(pos, struct sctp_transport, transports);
+
+        /* Update any entries that match the peer to be deleted. */
+        if (asoc->peer.primary_path == peer)
+                sctp_assoc_set_primary(asoc, transport);
+        if (asoc->peer.active_path == peer)
+                asoc->peer.active_path = transport;
+        if (asoc->peer.last_data_from == peer)
+                asoc->peer.last_data_from = transport;
+
+        /* If we remove the transport an INIT was last sent to, set it to
+         * NULL. Combined with the update of the retran path above, this
+         * will cause the next INIT to be sent to the next available
+         * transport, maintaining the cycle.
+         */
+        if (asoc->init_last_sent_to == peer)
+                asoc->init_last_sent_to = NULL;
+
+        asoc->peer.transport_count--;
+
+        sctp_transport_free(peer);
+}
+
 /* Add a transport address to an association.  */
 struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
                                            const union sctp_addr *addr,
-                                           int gfp)
+                                           const int gfp,
+                                           const int peer_state)
 {
         struct sctp_transport *peer;
         struct sctp_sock *sp;
@@ -442,14 +490,25 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
         /* AF_INET and AF_INET6 share common port field. */
         port = addr->v4.sin_port;
 
+        SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_add_peer:association %p addr: ",
+                                 " port: %d state:%s\n",
+                                 asoc,
+                                 addr,
+                                 addr->v4.sin_port,
+                                 peer_state == SCTP_UNKNOWN?"UNKNOWN":"ACTIVE");
+
         /* Set the port if it has not been set yet.  */
         if (0 == asoc->peer.port)
                 asoc->peer.port = port;
 
         /* Check to see if this is a duplicate. */
         peer = sctp_assoc_lookup_paddr(asoc, addr);
-        if (peer)
+        if (peer) {
+                if (peer_state == SCTP_ACTIVE &&
+                    peer->state == SCTP_UNKNOWN)
+                     peer->state = SCTP_ACTIVE;
                 return peer;
+        }
 
         peer = sctp_transport_new(addr, gfp);
         if (!peer)
@@ -516,8 +575,12 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
         /* Set the transport's RTO.initial value */
         peer->rto = asoc->rto_initial;
 
+        /* Set the peer's active state. */
+        peer->state = peer_state;
+
         /* Attach the remote transport to our asoc.  */
         list_add_tail(&peer->transports, &asoc->peer.transport_addr_list);
+        asoc->peer.transport_count++;
 
         /* If we do not yet have a primary path, set one.  */
         if (!asoc->peer.primary_path) {
@@ -525,8 +588,9 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
                 asoc->peer.retran_path = peer;
         }
 
-        if (asoc->peer.active_path == asoc->peer.retran_path)
+        if (asoc->peer.active_path == asoc->peer.retran_path) {
                 asoc->peer.retran_path = peer;
+        }
 
         return peer;
 }
@@ -537,37 +601,16 @@ void sctp_assoc_del_peer(struct sctp_association *asoc,
 {
         struct list_head        *pos;
         struct list_head        *temp;
-        struct sctp_transport   *peer = NULL;
         struct sctp_transport   *transport;
 
         list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {
                 transport = list_entry(pos, struct sctp_transport, transports);
                 if (sctp_cmp_addr_exact(addr, &transport->ipaddr)) {
-                        peer = transport;
-                        list_del(pos);
+                        /* Do book keeping for removing the peer and free it. */
+                        sctp_assoc_rm_peer(asoc, transport);
                         break;
                 }
         }
-
-        /* The address we want delete is not in the association. */
-        if (!peer)
-                return;
-
-        /* Get the first transport of asoc. */ 
-        pos = asoc->peer.transport_addr_list.next;
-        transport = list_entry(pos, struct sctp_transport, transports);
-
-        /* Update any entries that match the peer to be deleted. */  
-        if (asoc->peer.primary_path == peer)
-                sctp_assoc_set_primary(asoc, transport);
-        if (asoc->peer.active_path == peer)
-                asoc->peer.active_path = transport;
-        if (asoc->peer.retran_path == peer)
-                asoc->peer.retran_path = transport;
-        if (asoc->peer.last_data_from == peer)
-                asoc->peer.last_data_from = transport;
-
-        sctp_transport_free(peer);
 }
 
 /* Lookup a transport by address. */
@@ -608,12 +651,12 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
         /* Record the transition on the transport.  */
         switch (command) {
         case SCTP_TRANSPORT_UP:
-                transport->active = SCTP_ACTIVE;
+                transport->state = SCTP_ACTIVE;
                 spc_state = SCTP_ADDR_AVAILABLE;
                 break;
 
         case SCTP_TRANSPORT_DOWN:
-                transport->active = SCTP_INACTIVE;
+                transport->state = SCTP_INACTIVE;
                 spc_state = SCTP_ADDR_UNREACHABLE;
                 break;
 
@@ -643,7 +686,7 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
         list_for_each(pos, &asoc->peer.transport_addr_list) {
                 t = list_entry(pos, struct sctp_transport, transports);
 
-                if (!t->active)
+                if (t->state == SCTP_INACTIVE)
                         continue;
                 if (!first || t->last_time_heard > first->last_time_heard) {
                         second = first;
@@ -663,7 +706,7 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
          * [If the primary is active but not most recent, bump the most
          * recently used transport.]
          */
-        if (asoc->peer.primary_path->active &&
+        if (asoc->peer.primary_path->state != SCTP_INACTIVE &&
             first != asoc->peer.primary_path) {
                 second = first;
                 first = asoc->peer.primary_path;
@@ -958,7 +1001,7 @@ void sctp_assoc_update(struct sctp_association *asoc,
                                            transports);
                         if (!sctp_assoc_lookup_paddr(asoc, &trans->ipaddr))
                                 sctp_assoc_add_peer(asoc, &trans->ipaddr,
-                                                    GFP_ATOMIC);
+                                                    GFP_ATOMIC, SCTP_ACTIVE);
                 }
 
                 asoc->ctsn_ack_point = asoc->next_tsn - 1;
@@ -998,7 +1041,7 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
 
                 /* Try to find an active transport. */
 
-                if (t->active) {
+                if (t->state != SCTP_INACTIVE) {
                         break;
                 } else {
                         /* Keep track of the next transport in case
@@ -1019,6 +1062,40 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
         }
 
         asoc->peer.retran_path = t;
+
+        SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_update_retran_path:association"
+                                 " %p addr: ",
+                                 " port: %d\n",
+                                 asoc,
+                                 (&t->ipaddr),
+                                 t->ipaddr.v4.sin_port);
+}
+
+/* Choose the transport for sending a INIT packet.  */
+struct sctp_transport *sctp_assoc_choose_init_transport(
+        struct sctp_association *asoc)
+{
+        struct sctp_transport *t;
+
+        /* Use the retran path. If the last INIT was sent over the
+         * retran path, update the retran path and use it.
+         */
+        if (!asoc->init_last_sent_to) {
+                t = asoc->peer.active_path;
+        } else {
+                if (asoc->init_last_sent_to == asoc->peer.retran_path)
+                        sctp_assoc_update_retran_path(asoc);
+                t = asoc->peer.retran_path;
+        }
+
+        SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_update_retran_path:association"
+                                 " %p addr: ",
+                                 " port: %d\n",
+                                 asoc,
+                                 (&t->ipaddr),
+                                 t->ipaddr.v4.sin_port);
+
+        return t;
 }
 
 /* Choose the transport for sending a SHUTDOWN packet.  */
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 334f61773e6d..2ec0320fac3b 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -134,7 +134,6 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
         ep->last_key = ep->current_key = 0;
         ep->key_changed_at = jiffies;
 
-        ep->debug_name = "unnamedEndpoint";
         return ep;
 }
 
diff --git a/net/sctp/input.c b/net/sctp/input.c
index b719a77d66b4..339f7acfdb64 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -178,6 +178,37 @@ int sctp_rcv(struct sk_buff *skb)
 
         asoc = __sctp_rcv_lookup(skb, &src, &dest, &transport);
 
+        if (!asoc)
+                ep = __sctp_rcv_lookup_endpoint(&dest);
+
+        /* Retrieve the common input handling substructure. */
+        rcvr = asoc ? &asoc->base : &ep->base;
+        sk = rcvr->sk;
+
+        /*
+         * If a frame arrives on an interface and the receiving socket is
+         * bound to another interface, via SO_BINDTODEVICE, treat it as OOTB
+         */
+        if (sk->sk_bound_dev_if && (sk->sk_bound_dev_if != af->skb_iif(skb)))
+        {
+                sock_put(sk);
+                if (asoc) {
+                        sctp_association_put(asoc);
+                        asoc = NULL;
+                } else {
+                        sctp_endpoint_put(ep);
+                        ep = NULL;
+                }
+                sk = sctp_get_ctl_sock();
+                ep = sctp_sk(sk)->ep;
+                sctp_endpoint_hold(ep);
+                sock_hold(sk);
+                rcvr = &ep->base;
+        }
+
+        if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
+                goto discard_release;
+
         /*
          * RFC 2960, 8.4 - Handle "Out of the blue" Packets.
          * An SCTP packet is called an "out of the blue" (OOTB)
@@ -187,22 +218,12 @@ int sctp_rcv(struct sk_buff *skb)
          * packet belongs.
          */
         if (!asoc) {
-                ep = __sctp_rcv_lookup_endpoint(&dest);
                 if (sctp_rcv_ootb(skb)) {
                         SCTP_INC_STATS_BH(SCTP_MIB_OUTOFBLUES);
                         goto discard_release;
                 }
         }
 
-        /* Retrieve the common input handling substructure. */
-        rcvr = asoc ? &asoc->base : &ep->base;
-        sk = rcvr->sk;
-
-        if ((sk) && (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)) {
-                goto discard_release;
-        }
-
-
         /* SCTP seems to always need a timestamp right now (FIXME) */
         if (skb->stamp.tv_sec == 0) {
                 do_gettimeofday(&skb->stamp);
@@ -265,13 +286,11 @@ discard_it:
 
 discard_release:
         /* Release any structures we may be holding. */
-        if (asoc) {
-                sock_put(asoc->base.sk);
+        sock_put(sk);
+        if (asoc)
                 sctp_association_put(asoc);
-        } else {
-                sock_put(ep->base.sk);
+        else
                 sctp_endpoint_put(ep);
-        }
 
         goto discard_it;
 }
@@ -334,7 +353,7 @@ void sctp_icmp_proto_unreachable(struct sock *sk,
 
         sctp_do_sm(SCTP_EVENT_T_OTHER,
                    SCTP_ST_OTHER(SCTP_EVENT_ICMP_PROTO_UNREACH),
-                   asoc->state, asoc->ep, asoc, NULL,
+                   asoc->state, asoc->ep, asoc, t,
                    GFP_ATOMIC);
 
 }
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index c9d9ea064734..c7e42d125b9c 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -812,26 +812,23 @@ static int sctp_inet6_bind_verify(struct sctp_sock *opt, union sctp_addr *addr)
         if (addr->sa.sa_family != AF_INET6)
                 af = sctp_get_af_specific(addr->sa.sa_family);
         else {
-                struct sock *sk;
                 int type = ipv6_addr_type(&addr->v6.sin6_addr);
-                sk = sctp_opt2sk(opt);
+                struct net_device *dev;
+
                 if (type & IPV6_ADDR_LINKLOCAL) {
-                        /* Note: Behavior similar to af_inet6.c:
-                         *  1) Overrides previous bound_dev_if
-                         *  2) Destructive even if bind isn't successful.
-                         */
-
-                        if (addr->v6.sin6_scope_id)
-                                sk->sk_bound_dev_if = addr->v6.sin6_scope_id;
-                        if (!sk->sk_bound_dev_if)
+                        if (!addr->v6.sin6_scope_id)
+                                return 0;
+                        dev = dev_get_by_index(addr->v6.sin6_scope_id);
+                        if (!dev)
                                 return 0;
+                        dev_put(dev);
                 }
                 af = opt->pf->af;
         }
         return af->available(addr, opt);
 }
 
-/* Verify that the provided sockaddr looks bindable.   Common verification,
+/* Verify that the provided sockaddr looks sendable.   Common verification,
  * has already been taken care of.
  */
 static int sctp_inet6_send_verify(struct sctp_sock *opt, union sctp_addr *addr)
@@ -842,19 +839,16 @@ static int sctp_inet6_send_verify(struct sctp_sock *opt, union sctp_addr *addr)
         if (addr->sa.sa_family != AF_INET6)
                 af = sctp_get_af_specific(addr->sa.sa_family);
         else {
-                struct sock *sk;
                 int type = ipv6_addr_type(&addr->v6.sin6_addr);
-                sk = sctp_opt2sk(opt);
+                struct net_device *dev;
+
                 if (type & IPV6_ADDR_LINKLOCAL) {
-                        /* Note: Behavior similar to af_inet6.c:
-                         *  1) Overrides previous bound_dev_if
-                         *  2) Destructive even if bind isn't successful.
-                         */
-
-                        if (addr->v6.sin6_scope_id)
-                                sk->sk_bound_dev_if = addr->v6.sin6_scope_id;
-                        if (!sk->sk_bound_dev_if)
+                        if (!addr->v6.sin6_scope_id)
+                                return 0;
+                        dev = dev_get_by_index(addr->v6.sin6_scope_id);
+                        if (!dev)
                                 return 0;
+                        dev_put(dev);
                 }
                 af = opt->pf->af;
         }
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 1b2d4adc4ddb..4eb81a1407b7 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -682,9 +682,9 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 
                 if (!new_transport) {
                         new_transport = asoc->peer.active_path;
-                } else if (!new_transport->active) {
-                        /* If the chunk is Heartbeat or Heartbeat Ack, 
-                         * send it to chunk->transport, even if it's 
+                } else if (new_transport->state == SCTP_INACTIVE) {
+                        /* If the chunk is Heartbeat or Heartbeat Ack,
+                         * send it to chunk->transport, even if it's
                          * inactive.
                          *
                          * 3.3.6 Heartbeat Acknowledgement:
@@ -840,7 +840,8 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
                          * Otherwise, we want to use the active path.
                          */
                         new_transport = chunk->transport;
-                        if (!new_transport || !new_transport->active)
+                        if (!new_transport ||
+                            new_transport->state == SCTP_INACTIVE)
                                 new_transport = asoc->peer.active_path;
 
                         /* Change packets if necessary.  */
@@ -1454,7 +1455,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
                         /* Mark the destination transport address as
                          * active if it is not so marked.
                          */
-                        if (!transport->active) {
+                        if (transport->state == SCTP_INACTIVE) {
                                 sctp_assoc_control_transport(
                                         transport->asoc,
                                         transport,
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index e42fd8c2916b..98d49ec9b74b 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -132,14 +132,25 @@ void sctp_snmp_proc_exit(void)
 static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_common *epb)
 {
         struct list_head *pos;
+        struct sctp_association *asoc;
         struct sctp_sockaddr_entry *laddr;
-        union sctp_addr *addr;
+        struct sctp_transport *peer;
+        union sctp_addr *addr, *primary = NULL;
         struct sctp_af *af;
 
+        if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
+            asoc = sctp_assoc(epb);
+            peer = asoc->peer.primary_path;
+            primary = &peer->saddr;
+        }
+
         list_for_each(pos, &epb->bind_addr.address_list) {
                 laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
                 addr = (union sctp_addr *)&laddr->a;
                 af = sctp_get_af_specific(addr->sa.sa_family);
+                if (primary && af->cmp_addr(addr, primary)) {
+                        seq_printf(seq, "*");
+                }
                 af->seq_dump_addr(seq, addr);
         }
 }
@@ -149,17 +160,54 @@ static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_associa
 {
         struct list_head *pos;
         struct sctp_transport *transport;
-        union sctp_addr *addr;
+        union sctp_addr *addr, *primary;
         struct sctp_af *af;
 
+        primary = &(assoc->peer.primary_addr);
         list_for_each(pos, &assoc->peer.transport_addr_list) {
                 transport = list_entry(pos, struct sctp_transport, transports);
                 addr = (union sctp_addr *)&transport->ipaddr;
                 af = sctp_get_af_specific(addr->sa.sa_family);
+                if (af->cmp_addr(addr, primary)) {
+                        seq_printf(seq, "*");
+                }
                 af->seq_dump_addr(seq, addr);
         }
 }
 
+static void * sctp_eps_seq_start(struct seq_file *seq, loff_t *pos)
+{
+        if (*pos > sctp_ep_hashsize)
+                return NULL;
+
+        if (*pos < 0)
+                *pos = 0;
+
+        if (*pos == 0)
+                seq_printf(seq, " ENDPT     SOCK   STY SST HBKT LPORT   UID INODE LADDRS\n");
+
+        ++*pos;
+
+        return (void *)pos;
+}
+
+static void sctp_eps_seq_stop(struct seq_file *seq, void *v)
+{
+        return;
+}
+
+
+static void * sctp_eps_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+        if (*pos > sctp_ep_hashsize)
+                return NULL;
+
+        ++*pos;
+
+        return pos;
+}
+
+
 /* Display sctp endpoints (/proc/net/sctp/eps). */
 static int sctp_eps_seq_show(struct seq_file *seq, void *v)
 {
@@ -167,38 +215,50 @@ static int sctp_eps_seq_show(struct seq_file *seq, void *v)
         struct sctp_ep_common *epb;
         struct sctp_endpoint *ep;
         struct sock *sk;
-        int hash;
-
-        seq_printf(seq, " ENDPT     SOCK   STY SST HBKT LPORT LADDRS\n");
-        for (hash = 0; hash < sctp_ep_hashsize; hash++) {
-                head = &sctp_ep_hashtable[hash];
-                read_lock(&head->lock);
-                for (epb = head->chain; epb; epb = epb->next) {
-                        ep = sctp_ep(epb);
-                        sk = epb->sk;
-                        seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d ", ep, sk,
-                                   sctp_sk(sk)->type, sk->sk_state, hash,
-                                   epb->bind_addr.port);
-                        sctp_seq_dump_local_addrs(seq, epb);
-                        seq_printf(seq, "\n");
-                }
-                read_unlock(&head->lock);
+        int    hash = *(int *)v;
+
+        if (hash > sctp_ep_hashsize)
+                return -ENOMEM;
+
+        head = &sctp_ep_hashtable[hash-1];
+        sctp_local_bh_disable();
+        read_lock(&head->lock);
+        for (epb = head->chain; epb; epb = epb->next) {
+                ep = sctp_ep(epb);
+                sk = epb->sk;
+                seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
+                           sctp_sk(sk)->type, sk->sk_state, hash-1,
+                           epb->bind_addr.port,
+                           sock_i_uid(sk), sock_i_ino(sk));
+
+                sctp_seq_dump_local_addrs(seq, epb);
+                seq_printf(seq, "\n");
         }
+        read_unlock(&head->lock);
+        sctp_local_bh_enable();
 
         return 0;
 }
 
+static struct seq_operations sctp_eps_ops = {
+        .start = sctp_eps_seq_start,
+        .next  = sctp_eps_seq_next,
+        .stop  = sctp_eps_seq_stop,
+        .show  = sctp_eps_seq_show,
+};
+
+
 /* Initialize the seq file operations for 'eps' object. */
 static int sctp_eps_seq_open(struct inode *inode, struct file *file)
 {
-        return single_open(file, sctp_eps_seq_show, NULL);
+        return seq_open(file, &sctp_eps_ops);
 }
 
 static struct file_operations sctp_eps_seq_fops = {
         .open    = sctp_eps_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = single_release,
+        .release = seq_release,
 };
 
 /* Set up the proc fs entry for 'eps' object. */
@@ -221,6 +281,40 @@ void sctp_eps_proc_exit(void)
         remove_proc_entry("eps", proc_net_sctp);
 }
 
+
+static void * sctp_assocs_seq_start(struct seq_file *seq, loff_t *pos)
+{
+        if (*pos > sctp_assoc_hashsize)
+                return NULL;
+
+        if (*pos < 0)
+                *pos = 0;
+
+        if (*pos == 0)
+                seq_printf(seq, " ASSOC     SOCK   STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
+                                "RPORT LADDRS <-> RADDRS\n");
+
+        ++*pos;
+
+        return (void *)pos;
+}
+
+static void sctp_assocs_seq_stop(struct seq_file *seq, void *v)
+{
+        return;
+}
+
+
+static void * sctp_assocs_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+        if (*pos > sctp_assoc_hashsize)
+                return NULL;
+
+        ++*pos;
+
+        return pos;
+}
+
 /* Display sctp associations (/proc/net/sctp/assocs). */
 static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
 {
@@ -228,43 +322,57 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
         struct sctp_ep_common *epb;
         struct sctp_association *assoc;
         struct sock *sk;
-        int hash;
-
-        seq_printf(seq, " ASSOC     SOCK   STY SST ST HBKT LPORT RPORT "
-                        "LADDRS <-> RADDRS\n");
-        for (hash = 0; hash < sctp_assoc_hashsize; hash++) {
-                head = &sctp_assoc_hashtable[hash];
-                read_lock(&head->lock);
-                for (epb = head->chain; epb; epb = epb->next) {
-                        assoc = sctp_assoc(epb);
-                        sk = epb->sk;
-                        seq_printf(seq,
-                                   "%8p %8p %-3d %-3d %-2d %-4d %-5d %-5d ",
-                                   assoc, sk, sctp_sk(sk)->type, sk->sk_state,
-                                   assoc->state, hash, epb->bind_addr.port,
-                                   assoc->peer.port);
-                        sctp_seq_dump_local_addrs(seq, epb);
-                        seq_printf(seq, "<-> ");
-                        sctp_seq_dump_remote_addrs(seq, assoc);
-                        seq_printf(seq, "\n");
-                }
-                read_unlock(&head->lock);
+        int    hash = *(int *)v;
+
+        if (hash > sctp_assoc_hashsize)
+                return -ENOMEM;
+
+        head = &sctp_assoc_hashtable[hash-1];
+        sctp_local_bh_disable();
+        read_lock(&head->lock);
+        for (epb = head->chain; epb; epb = epb->next) {
+                assoc = sctp_assoc(epb);
+                sk = epb->sk;
+                seq_printf(seq,
+                           "%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ",
+                           assoc, sk, sctp_sk(sk)->type, sk->sk_state,
+                           assoc->state, hash-1, assoc->assoc_id,
+                           (sk->sk_rcvbuf - assoc->rwnd),
+                           assoc->sndbuf_used,
+                           sock_i_uid(sk), sock_i_ino(sk),
+                           epb->bind_addr.port,
+                           assoc->peer.port);
+
+                seq_printf(seq, " ");
+                sctp_seq_dump_local_addrs(seq, epb);
+                seq_printf(seq, "<-> ");
+                sctp_seq_dump_remote_addrs(seq, assoc);
+                seq_printf(seq, "\n");
         }
+        read_unlock(&head->lock);
+        sctp_local_bh_enable();
 
         return 0;
 }
 
+static struct seq_operations sctp_assoc_ops = {
+        .start = sctp_assocs_seq_start,
+        .next  = sctp_assocs_seq_next,
+        .stop  = sctp_assocs_seq_stop,
+        .show  = sctp_assocs_seq_show,
+};
+
 /* Initialize the seq file operations for 'assocs' object. */
 static int sctp_assocs_seq_open(struct inode *inode, struct file *file)
 {
-        return single_open(file, sctp_assocs_seq_show, NULL);
+        return seq_open(file, &sctp_assoc_ops);
 }
 
 static struct file_operations sctp_assocs_seq_fops = {
         .open    = sctp_assocs_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = single_release,
+        .release = seq_release,
 };
 
 /* Set up the proc fs entry for 'assocs' object. */
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 2e1f9c3556f5..5135e1a25d25 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -378,10 +378,13 @@ static int sctp_v4_available(union sctp_addr *addr, struct sctp_sock *sp)
 {
         int ret = inet_addr_type(addr->v4.sin_addr.s_addr);
 
-        /* FIXME: ip_nonlocal_bind sysctl support. */
 
-        if (addr->v4.sin_addr.s_addr != INADDR_ANY && ret != RTN_LOCAL)
+        if (addr->v4.sin_addr.s_addr != INADDR_ANY &&
+           ret != RTN_LOCAL &&
+           !sp->inet.freebind &&
+           !sysctl_ip_nonlocal_bind)
                 return 0;
+
         return 1;
 }
 
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 33ac8bf47b0e..5baed9bb7de5 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1830,7 +1830,7 @@ int sctp_process_init(struct sctp_association *asoc, sctp_cid_t cid,
          * be a a better choice than any of the embedded addresses.
          */
         if (peer_addr)
-                if(!sctp_assoc_add_peer(asoc, peer_addr, gfp))
+                if(!sctp_assoc_add_peer(asoc, peer_addr, gfp, SCTP_ACTIVE))
                         goto nomem;
 
         /* Process the initialization parameters.  */
@@ -1841,6 +1841,14 @@ int sctp_process_init(struct sctp_association *asoc, sctp_cid_t cid,
                         goto clean_up;
         }
 
+        /* Walk list of transports, removing transports in the UNKNOWN state. */
+        list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {
+                transport = list_entry(pos, struct sctp_transport, transports);
+                if (transport->state == SCTP_UNKNOWN) {
+                        sctp_assoc_rm_peer(asoc, transport);
+                }
+        }
+
         /* The fixed INIT headers are always in network byte
          * order.
          */
@@ -1906,7 +1914,8 @@ int sctp_process_init(struct sctp_association *asoc, sctp_cid_t cid,
          * stream sequence number shall be set to 0.
          */
 
-        /* Allocate storage for the negotiated streams if it is not a temporary          * association.
+        /* Allocate storage for the negotiated streams if it is not a temporary
+         * association.
          */
         if (!asoc->temp) {
                 int assoc_id;
@@ -1952,6 +1961,9 @@ clean_up:
                 list_del_init(pos);
                 sctp_transport_free(transport);
         }
+
+        asoc->peer.transport_count = 0;
+
 nomem:
         return 0;
 }
@@ -1995,7 +2007,7 @@ static int sctp_process_param(struct sctp_association *asoc,
                 af->from_addr_param(&addr, param.addr, asoc->peer.port, 0);
                 scope = sctp_scope(peer_addr);
                 if (sctp_in_scope(&addr, scope))
-                        if (!sctp_assoc_add_peer(asoc, &addr, gfp))
+                        if (!sctp_assoc_add_peer(asoc, &addr, gfp, SCTP_ACTIVE))
                                 return 0;
                 break;
 
@@ -2396,7 +2408,7 @@ static __u16 sctp_process_asconf_param(struct sctp_association *asoc,
                  * Due to Resource Shortage'.
                  */
 
-                peer = sctp_assoc_add_peer(asoc, &addr, GFP_ATOMIC);
+                peer = sctp_assoc_add_peer(asoc, &addr, GFP_ATOMIC, SCTP_ACTIVE);
                 if (!peer)
                         return SCTP_ERROR_RSRC_LOW;
 
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index f65fa441952f..778639db125a 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -414,11 +414,13 @@ static void sctp_do_8_2_transport_strike(struct sctp_association *asoc,
          */
         asoc->overall_error_count++;
 
-        if (transport->active &&
+        if (transport->state != SCTP_INACTIVE &&
             (transport->error_count++ >= transport->max_retrans)) {
-                SCTP_DEBUG_PRINTK("transport_strike: transport "
-                                  "IP:%d.%d.%d.%d failed.\n",
-                                  NIPQUAD(transport->ipaddr.v4.sin_addr));
+                SCTP_DEBUG_PRINTK_IPADDR("transport_strike:association %p",
+                                         " transport IP: port:%d failed.\n",
+                                         asoc,
+                                         (&transport->ipaddr),
+                                         transport->ipaddr.v4.sin_port);
                 sctp_assoc_control_transport(asoc, transport,
                                              SCTP_TRANSPORT_DOWN,
                                              SCTP_FAILED_THRESHOLD);
@@ -593,7 +595,7 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
         /* Mark the destination transport address as active if it is not so
          * marked.
          */
-        if (!t->active)
+        if (t->state == SCTP_INACTIVE)
                 sctp_assoc_control_transport(asoc, t, SCTP_TRANSPORT_UP,
                                              SCTP_HEARTBEAT_SUCCESS);
 
@@ -665,8 +667,11 @@ static void sctp_cmd_new_state(sctp_cmd_seq_t *cmds,
 
         asoc->state = state;
 
+        SCTP_DEBUG_PRINTK("sctp_cmd_new_state: asoc %p[%s]\n",
+                          asoc, sctp_state_tbl[state]);
+
         if (sctp_style(sk, TCP)) {
-                /* Change the sk->sk_state of a TCP-style socket that has 
+                /* Change the sk->sk_state of a TCP-style socket that has
                  * sucessfully completed a connect() call.
                  */
                 if (sctp_state(asoc, ESTABLISHED) && sctp_sstate(sk, CLOSED))
@@ -678,6 +683,16 @@ static void sctp_cmd_new_state(sctp_cmd_seq_t *cmds,
                         sk->sk_shutdown |= RCV_SHUTDOWN;
         }
 
+        if (sctp_state(asoc, COOKIE_WAIT)) {
+                /* Reset init timeouts since they may have been
+                 * increased due to timer expirations.
+                 */
+                asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
+                        asoc->ep->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT];
+                asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] =
+                        asoc->ep->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE];
+        }
+
         if (sctp_state(asoc, ESTABLISHED) ||
             sctp_state(asoc, CLOSED) ||
             sctp_state(asoc, SHUTDOWN_RECEIVED)) {
@@ -1120,10 +1135,10 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
                          * to be executed only during failed attempts of
                          * association establishment.
                          */
-                        if ((asoc->peer.retran_path != 
-                             asoc->peer.primary_path) && 
-                            (asoc->counters[SCTP_COUNTER_INIT_ERROR] > 0)) {
-                                sctp_add_cmd_sf(commands, 
+                        if ((asoc->peer.retran_path !=
+                             asoc->peer.primary_path) &&
+                            (asoc->init_err_counter > 0)) {
+                                sctp_add_cmd_sf(commands,
                                                 SCTP_CMD_FORCE_PRIM_RETRAN,
                                                 SCTP_NULL());
                         }
@@ -1237,18 +1252,67 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
                                 sctp_association_put(asoc);
                         break;
 
+                case SCTP_CMD_INIT_CHOOSE_TRANSPORT:
+                        chunk = cmd->obj.ptr;
+                        t = sctp_assoc_choose_init_transport(asoc);
+                        asoc->init_last_sent_to = t;
+                        chunk->transport = t;
+                        t->init_sent_count++;
+                        break;
+
                 case SCTP_CMD_INIT_RESTART:
                         /* Do the needed accounting and updates
                          * associated with restarting an initialization
-                         * timer.
+                         * timer. Only multiply the timeout by two if
+                         * all transports have been tried at the current
+                         * timeout.
+                         */
+                        t = asoc->init_last_sent_to;
+                        asoc->init_err_counter++;
+
+                        if (t->init_sent_count > (asoc->init_cycle + 1)) {
+                                asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] *= 2;
+                                if (asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] >
+                                    asoc->max_init_timeo) {
+                                        asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
+                                                asoc->max_init_timeo;
+                                }
+                                asoc->init_cycle++;
+                                SCTP_DEBUG_PRINTK(
+                                        "T1 INIT Timeout adjustment"
+                                        " init_err_counter: %d"
+                                        " cycle: %d"
+                                        " timeout: %d\n",
+                                        asoc->init_err_counter,
+                                        asoc->init_cycle,
+                                        asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT]);
+                        }
+
+                        sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_RESTART,
+                                        SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT));
+                        break;
+
+                case SCTP_CMD_COOKIEECHO_RESTART:
+                        /* Do the needed accounting and updates
+                         * associated with restarting an initialization
+                         * timer. Only multiply the timeout by two if
+                         * all transports have been tried at the current
+                         * timeout.
                          */
-                        asoc->counters[SCTP_COUNTER_INIT_ERROR]++;
-                        asoc->timeouts[cmd->obj.to] *= 2;
-                        if (asoc->timeouts[cmd->obj.to] >
+                        asoc->init_err_counter++;
+
+                        asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] *= 2;
+                        if (asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] >
                             asoc->max_init_timeo) {
-                                asoc->timeouts[cmd->obj.to] =
+                                asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] =
                                         asoc->max_init_timeo;
                         }
+                        SCTP_DEBUG_PRINTK(
+                                "T1 COOKIE Timeout adjustment"
+                                " init_err_counter: %d"
+                                " timeout: %d\n",
+                                asoc->init_err_counter,
+                                asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE]);
 
                         /* If we've sent any data bundled with
                          * COOKIE-ECHO we need to resend.
@@ -1261,7 +1325,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 
                         sctp_add_cmd_sf(commands,
                                         SCTP_CMD_TIMER_RESTART,
-                                        SCTP_TO(cmd->obj.to));
+                                        SCTP_TO(SCTP_EVENT_TIMEOUT_T1_COOKIE));
                         break;
 
                 case SCTP_CMD_INIT_FAILED:
@@ -1273,12 +1337,13 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
                                               subtype, chunk, cmd->obj.u32);
                         break;
 
-                case SCTP_CMD_COUNTER_INC:
-                        asoc->counters[cmd->obj.counter]++;
+                case SCTP_CMD_INIT_COUNTER_INC:
+                        asoc->init_err_counter++;
                         break;
 
-                case SCTP_CMD_COUNTER_RESET:
-                        asoc->counters[cmd->obj.counter] = 0;
+                case SCTP_CMD_INIT_COUNTER_RESET:
+                        asoc->init_err_counter = 0;
+                        asoc->init_cycle = 0;
                         break;
 
                 case SCTP_CMD_REPORT_DUP:
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 8e01b8f09ac2..86073df418f5 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -92,6 +92,17 @@ static sctp_disposition_t sctp_sf_shut_8_4_5(const struct sctp_endpoint *ep,
                                              sctp_cmd_seq_t *commands);
 static struct sctp_sackhdr *sctp_sm_pull_sack(struct sctp_chunk *chunk);
 
+static sctp_disposition_t sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands,
+                                           __u16 error,
+                                           const struct sctp_association *asoc,
+                                           struct sctp_transport *transport);
+
+static sctp_disposition_t sctp_sf_violation_chunklen(
+                                     const struct sctp_endpoint *ep,
+                                     const struct sctp_association *asoc,
+                                     const sctp_subtype_t type,
+                                     void *arg,
+                                     sctp_cmd_seq_t *commands);
 
 /* Small helper function that checks if the chunk length
  * is of the appropriate length.  The 'required_length' argument
@@ -533,6 +544,9 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
         sctp_add_cmd_sf(commands, SCTP_CMD_PEER_INIT,
                         SCTP_PEER_INIT(initchunk));
 
+        /* Reset init error count upon receipt of INIT-ACK.  */
+        sctp_add_cmd_sf(commands, SCTP_CMD_INIT_COUNTER_RESET, SCTP_NULL());
+
         /* 5.1 C) "A" shall stop the T1-init timer and leave
          * COOKIE-WAIT state.  "A" shall then ... start the T1-cookie
          * timer, and enter the COOKIE-ECHOED state.
@@ -775,8 +789,7 @@ sctp_disposition_t sctp_sf_do_5_1E_ca(const struct sctp_endpoint *ep,
          * from the COOKIE-ECHOED state to the COOKIE-WAIT
          * state is performed.
          */
-        sctp_add_cmd_sf(commands, SCTP_CMD_COUNTER_RESET,
-                        SCTP_COUNTER(SCTP_COUNTER_INIT_ERROR));
+        sctp_add_cmd_sf(commands, SCTP_CMD_INIT_COUNTER_RESET, SCTP_NULL());
 
         /* RFC 2960 5.1 Normal Establishment of an Association
          *
@@ -1019,10 +1032,22 @@ sctp_disposition_t sctp_sf_backbeat_8_3(const struct sctp_endpoint *ep,
         link = sctp_assoc_lookup_paddr(asoc, &from_addr);
 
         /* This should never happen, but lets log it if so.  */
-        if (!link) {
-                printk(KERN_WARNING
-                       "%s: Could not find address %d.%d.%d.%d\n",
-                       __FUNCTION__, NIPQUAD(from_addr.v4.sin_addr));
+        if (unlikely(!link)) {
+                if (from_addr.sa.sa_family == AF_INET6) {
+                        printk(KERN_WARNING
+                               "%s association %p could not find address "
+                               "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
+                               __FUNCTION__,
+                               asoc,
+                               NIP6(from_addr.v6.sin6_addr));
+                } else {
+                        printk(KERN_WARNING
+                               "%s association %p could not find address "
+                               "%u.%u.%u.%u\n",
+                               __FUNCTION__,
+                               asoc,
+                               NIPQUAD(from_addr.v4.sin_addr.s_addr));
+                }
                 return SCTP_DISPOSITION_DISCARD;
         }
 
@@ -2095,9 +2120,7 @@ static sctp_disposition_t sctp_sf_do_5_2_6_stale(const struct sctp_endpoint *ep,
         sctp_errhdr_t *err;
         struct sctp_chunk *reply;
         struct sctp_bind_addr *bp;
-        int attempts;
-
-        attempts = asoc->counters[SCTP_COUNTER_INIT_ERROR] + 1;
+        int attempts = asoc->init_err_counter + 1;
 
         if (attempts >= asoc->max_init_attempts) {
                 sctp_add_cmd_sf(commands, SCTP_CMD_INIT_FAILED,
@@ -2157,8 +2180,7 @@ static sctp_disposition_t sctp_sf_do_5_2_6_stale(const struct sctp_endpoint *ep,
         /* Cast away the const modifier, as we want to just
          * rerun it through as a sideffect.
          */
-        sctp_add_cmd_sf(commands, SCTP_CMD_COUNTER_INC,
-                        SCTP_COUNTER(SCTP_COUNTER_INIT_ERROR));
+        sctp_add_cmd_sf(commands, SCTP_CMD_INIT_COUNTER_INC, SCTP_NULL());
 
         sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
                         SCTP_TO(SCTP_EVENT_TIMEOUT_T1_COOKIE));
@@ -2281,8 +2303,7 @@ sctp_disposition_t sctp_sf_cookie_wait_abort(const struct sctp_endpoint *ep,
         if (len >= sizeof(struct sctp_chunkhdr) + sizeof(struct sctp_errhdr))
                 error = ((sctp_errhdr_t *)chunk->skb->data)->cause;
 
-        sctp_stop_t1_and_abort(commands, error);
-        return SCTP_DISPOSITION_ABORT;
+        return sctp_stop_t1_and_abort(commands, error, asoc, chunk->transport);
 }
 
 /*
@@ -2294,8 +2315,8 @@ sctp_disposition_t sctp_sf_cookie_wait_icmp_abort(const struct sctp_endpoint *ep
                                         void *arg,
                                         sctp_cmd_seq_t *commands)
 {
-        sctp_stop_t1_and_abort(commands, SCTP_ERROR_NO_ERROR);
-        return SCTP_DISPOSITION_ABORT;
+        return sctp_stop_t1_and_abort(commands, SCTP_ERROR_NO_ERROR, asoc,
+                                      (struct sctp_transport *)arg);
 }
 
 /*
@@ -2318,8 +2339,12 @@ sctp_disposition_t sctp_sf_cookie_echoed_abort(const struct sctp_endpoint *ep,
  *
  * This is common code called by several sctp_sf_*_abort() functions above.
  */
-void sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands, __u16 error)
+static sctp_disposition_t sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands,
+                                           __u16 error,
+                                           const struct sctp_association *asoc,
+                                           struct sctp_transport *transport)
 {
+        SCTP_DEBUG_PRINTK("ABORT received (INIT).\n");
         sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
                         SCTP_STATE(SCTP_STATE_CLOSED));
         SCTP_INC_STATS(SCTP_MIB_ABORTEDS);
@@ -2328,6 +2353,7 @@ void sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands, __u16 error)
         /* CMD_INIT_FAILED will DELETE_TCB. */
         sctp_add_cmd_sf(commands, SCTP_CMD_INIT_FAILED,
                         SCTP_U32(error));
+        return SCTP_DISPOSITION_ABORT;
 }
 
 /*
@@ -3672,7 +3698,8 @@ sctp_disposition_t sctp_sf_violation(const struct sctp_endpoint *ep,
  *
  * Generate an  ABORT chunk and terminate the association.
  */
-sctp_disposition_t sctp_sf_violation_chunklen(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_violation_chunklen(
+                                     const struct sctp_endpoint *ep,
                                      const struct sctp_association *asoc,
                                      const sctp_subtype_t type,
                                      void *arg,
@@ -3805,6 +3832,10 @@ sctp_disposition_t sctp_sf_do_prm_asoc(const struct sctp_endpoint *ep,
         sctp_add_cmd_sf(commands, SCTP_CMD_NEW_ASOC,
                         SCTP_ASOC((struct sctp_association *) asoc));
 
+        /* Choose transport for INIT. */
+        sctp_add_cmd_sf(commands, SCTP_CMD_INIT_CHOOSE_TRANSPORT,
+                        SCTP_CHUNK(repl));
+
         /* After sending the INIT, "A" starts the T1-init timer and
          * enters the COOKIE-WAIT state.
          */
@@ -4589,7 +4620,7 @@ sctp_disposition_t sctp_sf_do_6_2_sack(const struct sctp_endpoint *ep,
 }
 
 /*
- * sctp_sf_t1_timer_expire
+ * sctp_sf_t1_init_timer_expire
  *
  * Section: 4 Note: 2
  * Verification Tag:
@@ -4603,7 +4634,59 @@ sctp_disposition_t sctp_sf_do_6_2_sack(const struct sctp_endpoint *ep,
  *     endpoint MUST abort the initialization process and report the
  *     error to SCTP user.
  *
- *   3) If the T1-cookie timer expires, the endpoint MUST retransmit
+ * Outputs
+ * (timers, events)
+ *
+ */
+sctp_disposition_t sctp_sf_t1_init_timer_expire(const struct sctp_endpoint *ep,
+                                           const struct sctp_association *asoc,
+                                           const sctp_subtype_t type,
+                                           void *arg,
+                                           sctp_cmd_seq_t *commands)
+{
+        struct sctp_chunk *repl = NULL;
+        struct sctp_bind_addr *bp;
+        int attempts = asoc->init_err_counter + 1;
+
+        SCTP_DEBUG_PRINTK("Timer T1 expired (INIT).\n");
+
+        if (attempts < asoc->max_init_attempts) {
+                bp = (struct sctp_bind_addr *) &asoc->base.bind_addr;
+                repl = sctp_make_init(asoc, bp, GFP_ATOMIC, 0);
+                if (!repl)
+                        return SCTP_DISPOSITION_NOMEM;
+
+                /* Choose transport for INIT. */
+                sctp_add_cmd_sf(commands, SCTP_CMD_INIT_CHOOSE_TRANSPORT,
+                                SCTP_CHUNK(repl));
+
+                /* Issue a sideeffect to do the needed accounting. */
+                sctp_add_cmd_sf(commands, SCTP_CMD_INIT_RESTART,
+                                SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT));
+
+                sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(repl));
+        } else {
+                SCTP_DEBUG_PRINTK("Giving up on INIT, attempts: %d"
+                                  " max_init_attempts: %d\n",
+                                  attempts, asoc->max_init_attempts);
+                sctp_add_cmd_sf(commands, SCTP_CMD_INIT_FAILED,
+                                SCTP_U32(SCTP_ERROR_NO_ERROR));
+                return SCTP_DISPOSITION_DELETE_TCB;
+        }
+
+        return SCTP_DISPOSITION_CONSUME;
+}
+
+/*
+ * sctp_sf_t1_cookie_timer_expire
+ *
+ * Section: 4 Note: 2
+ * Verification Tag:
+ * Inputs
+ * (endpoint, asoc)
+ *
+ *  RFC 2960 Section 4 Notes
+ *  3) If the T1-cookie timer expires, the endpoint MUST retransmit
  *     COOKIE ECHO and re-start the T1-cookie timer without changing
  *     state.  This MUST be repeated up to 'Max.Init.Retransmits' times.
  *     After that, the endpoint MUST abort the initialization process and
@@ -4613,46 +4696,26 @@ sctp_disposition_t sctp_sf_do_6_2_sack(const struct sctp_endpoint *ep,
  * (timers, events)
  *
  */
-sctp_disposition_t sctp_sf_t1_timer_expire(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_t1_cookie_timer_expire(const struct sctp_endpoint *ep,
                                            const struct sctp_association *asoc,
                                            const sctp_subtype_t type,
                                            void *arg,
                                            sctp_cmd_seq_t *commands)
 {
-        struct sctp_chunk *repl;
-        struct sctp_bind_addr *bp;
-        sctp_event_timeout_t timer = (sctp_event_timeout_t) arg;
-        int timeout;
-        int attempts;
+        struct sctp_chunk *repl = NULL;
+        int attempts = asoc->init_err_counter + 1;
 
-        timeout = asoc->timeouts[timer];
-        attempts = asoc->counters[SCTP_COUNTER_INIT_ERROR] + 1;
-        repl = NULL;
-
-        SCTP_DEBUG_PRINTK("Timer T1 expired.\n");
+        SCTP_DEBUG_PRINTK("Timer T1 expired (COOKIE-ECHO).\n");
 
         if (attempts < asoc->max_init_attempts) {
-                switch (timer) {
-                case SCTP_EVENT_TIMEOUT_T1_INIT:
-                        bp = (struct sctp_bind_addr *) &asoc->base.bind_addr;
-                        repl = sctp_make_init(asoc, bp, GFP_ATOMIC, 0);
-                        break;
-
-                case SCTP_EVENT_TIMEOUT_T1_COOKIE:
-                        repl = sctp_make_cookie_echo(asoc, NULL);
-                        break;
-
-                default:
-                        BUG();
-                        break;
-                };
-
+                repl = sctp_make_cookie_echo(asoc, NULL);
                 if (!repl)
-                        goto nomem;
+                        return SCTP_DISPOSITION_NOMEM;
 
                 /* Issue a sideeffect to do the needed accounting. */
-                sctp_add_cmd_sf(commands, SCTP_CMD_INIT_RESTART,
-                                SCTP_TO(timer));
+                sctp_add_cmd_sf(commands, SCTP_CMD_COOKIEECHO_RESTART,
+                                SCTP_TO(SCTP_EVENT_TIMEOUT_T1_COOKIE));
+
                 sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(repl));
         } else {
                 sctp_add_cmd_sf(commands, SCTP_CMD_INIT_FAILED,
@@ -4661,9 +4724,6 @@ sctp_disposition_t sctp_sf_t1_timer_expire(const struct sctp_endpoint *ep,
         }
 
         return SCTP_DISPOSITION_CONSUME;
-
-nomem:
-        return SCTP_DISPOSITION_NOMEM;
 }
 
 /* RFC2960 9.2 If the timer expires, the endpoint must re-send the SHUTDOWN
diff --git a/net/sctp/sm_statetable.c b/net/sctp/sm_statetable.c
index 8967846f69e8..75ef10408764 100644
--- a/net/sctp/sm_statetable.c
+++ b/net/sctp/sm_statetable.c
@@ -783,7 +783,8 @@ static const sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_
         /* SCTP_STATE_COOKIE_WAIT */ \
         {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
         /* SCTP_STATE_COOKIE_ECHOED */ \
-        {.fn = sctp_sf_t1_timer_expire, .name = "sctp_sf_t1_timer_expire"}, \
+        {.fn = sctp_sf_t1_cookie_timer_expire, \
+         .name = "sctp_sf_t1_cookie_timer_expire"}, \
         /* SCTP_STATE_ESTABLISHED */ \
         {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
         /* SCTP_STATE_SHUTDOWN_PENDING */ \
@@ -802,7 +803,8 @@ static const sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_
         /* SCTP_STATE_CLOSED */ \
         {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
         /* SCTP_STATE_COOKIE_WAIT */ \
-        {.fn = sctp_sf_t1_timer_expire, .name = "sctp_sf_t1_timer_expire"}, \
+        {.fn = sctp_sf_t1_init_timer_expire, \
+         .name = "sctp_sf_t1_init_timer_expire"}, \
         /* SCTP_STATE_COOKIE_ECHOED */ \
         {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
         /* SCTP_STATE_ESTABLISHED */ \
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 0b338eca6dc0..aad55dc3792b 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -262,18 +262,18 @@ static struct sctp_transport *sctp_addr_id2transport(struct sock *sk,
  *             sockaddr_in6 [RFC 2553]),
  *   addr_len - the size of the address structure.
  */
-SCTP_STATIC int sctp_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+SCTP_STATIC int sctp_bind(struct sock *sk, struct sockaddr *addr, int addr_len)
 {
         int retval = 0;
 
         sctp_lock_sock(sk);
 
-        SCTP_DEBUG_PRINTK("sctp_bind(sk: %p, uaddr: %p, addr_len: %d)\n",
-                          sk, uaddr, addr_len);
+        SCTP_DEBUG_PRINTK("sctp_bind(sk: %p, addr: %p, addr_len: %d)\n",
+                          sk, addr, addr_len);
 
         /* Disallow binding twice. */
         if (!sctp_sk(sk)->ep->base.bind_addr.port)
-                retval = sctp_do_bind(sk, (union sctp_addr *)uaddr,
+                retval = sctp_do_bind(sk, (union sctp_addr *)addr,
                                       addr_len);
         else
                 retval = -EINVAL;
@@ -318,23 +318,27 @@ SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
         unsigned short snum;
         int ret = 0;
 
-        SCTP_DEBUG_PRINTK("sctp_do_bind(sk: %p, newaddr: %p, len: %d)\n",
-                          sk, addr, len);
-
         /* Common sockaddr verification. */
         af = sctp_sockaddr_af(sp, addr, len);
-        if (!af)
+        if (!af) {
+                SCTP_DEBUG_PRINTK("sctp_do_bind(sk: %p, newaddr: %p, len: %d) EINVAL\n",
+                                  sk, addr, len);
                 return -EINVAL;
+        }
+
+        snum = ntohs(addr->v4.sin_port);
+
+        SCTP_DEBUG_PRINTK_IPADDR("sctp_do_bind(sk: %p, new addr: ",
+                                 ", port: %d, new port: %d, len: %d)\n",
+                                 sk,
+                                 addr,
+                                 bp->port, snum,
+                                 len);
 
         /* PF specific bind() address verification. */
         if (!sp->pf->bind_verify(sp, addr))
                 return -EADDRNOTAVAIL;
 
-        snum= ntohs(addr->v4.sin_port);
-
-        SCTP_DEBUG_PRINTK("sctp_do_bind: port: %d, new port: %d\n",
-                          bp->port, snum);
-
         /* We must either be unbound, or bind to the same port.  */
         if (bp->port && (snum != bp->port)) {
                 SCTP_DEBUG_PRINTK("sctp_do_bind:"
@@ -816,7 +820,8 @@ out:
  *
  * Basically do nothing but copying the addresses from user to kernel
  * land and invoking either sctp_bindx_add() or sctp_bindx_rem() on the sk.
- * This is used for tunneling the sctp_bindx() request through sctp_setsockopt() * from userspace.
+ * This is used for tunneling the sctp_bindx() request through sctp_setsockopt()
+ * from userspace.
  *
  * We don't use copy_from_user() for optimization: we first do the
  * sanity checks (buffer size -fast- and access check-healthy
@@ -913,6 +918,243 @@ out:
         return err;
 }
 
+/* __sctp_connect(struct sock* sk, struct sockaddr *kaddrs, int addrs_size)
+ *
+ * Common routine for handling connect() and sctp_connectx().
+ * Connect will come in with just a single address.
+ */
+static int __sctp_connect(struct sock* sk,
+                          struct sockaddr *kaddrs,
+                          int addrs_size)
+{
+        struct sctp_sock *sp;
+        struct sctp_endpoint *ep;
+        struct sctp_association *asoc = NULL;
+        struct sctp_association *asoc2;
+        struct sctp_transport *transport;
+        union sctp_addr to;
+        struct sctp_af *af;
+        sctp_scope_t scope;
+        long timeo;
+        int err = 0;
+        int addrcnt = 0;
+        int walk_size = 0;
+        struct sockaddr *sa_addr;
+        void *addr_buf;
+
+        sp = sctp_sk(sk);
+        ep = sp->ep;
+
+        /* connect() cannot be done on a socket that is already in ESTABLISHED
+         * state - UDP-style peeled off socket or a TCP-style socket that
+         * is already connected.
+         * It cannot be done even on a TCP-style listening socket.
+         */
+        if (sctp_sstate(sk, ESTABLISHED) ||
+            (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))) {
+                err = -EISCONN;
+                goto out_free;
+        }
+
+        /* Walk through the addrs buffer and count the number of addresses. */
+        addr_buf = kaddrs;
+        while (walk_size < addrs_size) {
+                sa_addr = (struct sockaddr *)addr_buf;
+                af = sctp_get_af_specific(sa_addr->sa_family);
+
+                /* If the address family is not supported or if this address
+                 * causes the address buffer to overflow return EINVAL.
+                 */
+                if (!af || (walk_size + af->sockaddr_len) > addrs_size) {
+                        err = -EINVAL;
+                        goto out_free;
+                }
+
+                err = sctp_verify_addr(sk, (union sctp_addr *)sa_addr,
+                                       af->sockaddr_len);
+                if (err)
+                        goto out_free;
+
+                memcpy(&to, sa_addr, af->sockaddr_len);
+                to.v4.sin_port = ntohs(to.v4.sin_port);
+
+                /* Check if there already is a matching association on the
+                 * endpoint (other than the one created here).
+                 */
+                asoc2 = sctp_endpoint_lookup_assoc(ep, &to, &transport);
+                if (asoc2 && asoc2 != asoc) {
+                        if (asoc2->state >= SCTP_STATE_ESTABLISHED)
+                                err = -EISCONN;
+                        else
+                                err = -EALREADY;
+                        goto out_free;
+                }
+
+                /* If we could not find a matching association on the endpoint,
+                 * make sure that there is no peeled-off association matching
+                 * the peer address even on another socket.
+                 */
+                if (sctp_endpoint_is_peeled_off(ep, &to)) {
+                        err = -EADDRNOTAVAIL;
+                        goto out_free;
+                }
+
+                if (!asoc) {
+                        /* If a bind() or sctp_bindx() is not called prior to
+                         * an sctp_connectx() call, the system picks an
+                         * ephemeral port and will choose an address set
+                         * equivalent to binding with a wildcard address.
+                         */
+                        if (!ep->base.bind_addr.port) {
+                                if (sctp_autobind(sk)) {
+                                        err = -EAGAIN;
+                                        goto out_free;
+                                }
+                        }
+
+                        scope = sctp_scope(&to);
+                        asoc = sctp_association_new(ep, sk, scope, GFP_KERNEL);
+                        if (!asoc) {
+                                err = -ENOMEM;
+                                goto out_free;
+                        }
+                }
+
+                /* Prime the peer's transport structures.  */
+                transport = sctp_assoc_add_peer(asoc, &to, GFP_KERNEL,
+                                                SCTP_UNKNOWN);
+                if (!transport) {
+                        err = -ENOMEM;
+                        goto out_free;
+                }
+
+                addrcnt++;
+                addr_buf += af->sockaddr_len;
+                walk_size += af->sockaddr_len;
+        }
+
+        err = sctp_assoc_set_bind_addr_from_ep(asoc, GFP_KERNEL);
+        if (err < 0) {
+                goto out_free;
+        }
+
+        err = sctp_primitive_ASSOCIATE(asoc, NULL);
+        if (err < 0) {
+                goto out_free;
+        }
+
+        /* Initialize sk's dport and daddr for getpeername() */
+        inet_sk(sk)->dport = htons(asoc->peer.port);
+        af = sctp_get_af_specific(to.sa.sa_family);
+        af->to_sk_daddr(&to, sk);
+
+        timeo = sock_sndtimeo(sk, sk->sk_socket->file->f_flags & O_NONBLOCK);
+        err = sctp_wait_for_connect(asoc, &timeo);
+
+        /* Don't free association on exit. */
+        asoc = NULL;
+
+out_free:
+
+        SCTP_DEBUG_PRINTK("About to exit __sctp_connect() free asoc: %p"
+                          " kaddrs: %p err: %d\n",
+                          asoc, kaddrs, err);
+        if (asoc)
+                sctp_association_free(asoc);
+        return err;
+}
+
+/* Helper for tunneling sctp_connectx() requests through sctp_setsockopt()
+ *
+ * API 8.9
+ * int sctp_connectx(int sd, struct sockaddr *addrs, int addrcnt);
+ *
+ * If sd is an IPv4 socket, the addresses passed must be IPv4 addresses.
+ * If the sd is an IPv6 socket, the addresses passed can either be IPv4
+ * or IPv6 addresses.
+ *
+ * A single address may be specified as INADDR_ANY or IN6ADDR_ANY, see
+ * Section 3.1.2 for this usage.
+ *
+ * addrs is a pointer to an array of one or more socket addresses. Each
+ * address is contained in its appropriate structure (i.e. struct
+ * sockaddr_in or struct sockaddr_in6) the family of the address type
+ * must be used to distengish the address length (note that this
+ * representation is termed a "packed array" of addresses). The caller
+ * specifies the number of addresses in the array with addrcnt.
+ *
+ * On success, sctp_connectx() returns 0. On failure, sctp_connectx() returns
+ * -1, and sets errno to the appropriate error code.
+ *
+ * For SCTP, the port given in each socket address must be the same, or
+ * sctp_connectx() will fail, setting errno to EINVAL.
+ *
+ * An application can use sctp_connectx to initiate an association with
+ * an endpoint that is multi-homed.  Much like sctp_bindx() this call
+ * allows a caller to specify multiple addresses at which a peer can be
+ * reached.  The way the SCTP stack uses the list of addresses to set up
+ * the association is implementation dependant.  This function only
+ * specifies that the stack will try to make use of all the addresses in
+ * the list when needed.
+ *
+ * Note that the list of addresses passed in is only used for setting up
+ * the association.  It does not necessarily equal the set of addresses
+ * the peer uses for the resulting association.  If the caller wants to
+ * find out the set of peer addresses, it must use sctp_getpaddrs() to
+ * retrieve them after the association has been set up.
+ *
+ * Basically do nothing but copying the addresses from user to kernel
+ * land and invoking either sctp_connectx(). This is used for tunneling
+ * the sctp_connectx() request through sctp_setsockopt() from userspace.
+ *
+ * We don't use copy_from_user() for optimization: we first do the
+ * sanity checks (buffer size -fast- and access check-healthy
+ * pointer); if all of those succeed, then we can alloc the memory
+ * (expensive operation) needed to copy the data to kernel. Then we do
+ * the copying without checking the user space area
+ * (__copy_from_user()).
+ *
+ * On exit there is no need to do sockfd_put(), sys_setsockopt() does
+ * it.
+ *
+ * sk        The sk of the socket
+ * addrs     The pointer to the addresses in user land
+ * addrssize Size of the addrs buffer
+ *
+ * Returns 0 if ok, <0 errno code on error.
+ */
+SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
+                                      struct sockaddr __user *addrs,
+                                      int addrs_size)
+{
+        int err = 0;
+        struct sockaddr *kaddrs;
+
+        SCTP_DEBUG_PRINTK("%s - sk %p addrs %p addrs_size %d\n",
+                          __FUNCTION__, sk, addrs, addrs_size);
+
+        if (unlikely(addrs_size <= 0))
+                return -EINVAL;
+
+        /* Check the user passed a healthy pointer.  */
+        if (unlikely(!access_ok(VERIFY_READ, addrs, addrs_size)))
+                return -EFAULT;
+
+        /* Alloc space for the address array in kernel memory.  */
+        kaddrs = (struct sockaddr *)kmalloc(addrs_size, GFP_KERNEL);
+        if (unlikely(!kaddrs))
+                return -ENOMEM;
+
+        if (__copy_from_user(kaddrs, addrs, addrs_size)) {
+                err = -EFAULT;
+        } else {
+                err = __sctp_connect(sk, kaddrs, addrs_size);
+        }
+
+        kfree(kaddrs);
+        return err;
+}
+
 /* API 3.1.4 close() - UDP Style Syntax
  * Applications use close() to perform graceful shutdown (as described in
  * Section 10.1 of [SCTP]) on ALL the associations currently represented
@@ -1095,7 +1337,7 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
         sp = sctp_sk(sk);
         ep = sp->ep;
 
-        SCTP_DEBUG_PRINTK("Using endpoint: %s.\n", ep->debug_name);
+        SCTP_DEBUG_PRINTK("Using endpoint: %p.\n", ep);
 
         /* We cannot send a message over a TCP-style listening socket. */
         if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING)) {
@@ -1306,7 +1548,7 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
                 }
 
                 /* Prime the peer's transport structures.  */
-                transport = sctp_assoc_add_peer(asoc, &to, GFP_KERNEL);
+                transport = sctp_assoc_add_peer(asoc, &to, GFP_KERNEL, SCTP_UNKNOWN);
                 if (!transport) {
                         err = -ENOMEM;
                         goto out_free;
@@ -2208,6 +2450,12 @@ SCTP_STATIC int sctp_setsockopt(struct sock *sk, int level, int optname,
                                                optlen, SCTP_BINDX_REM_ADDR);
                 break;
 
+        case SCTP_SOCKOPT_CONNECTX:
+                /* 'optlen' is the size of the addresses buffer. */
+                retval = sctp_setsockopt_connectx(sk, (struct sockaddr __user *)optval,
+                                               optlen);
+                break;
+
         case SCTP_DISABLE_FRAGMENTS:
                 retval = sctp_setsockopt_disable_fragments(sk, optval, optlen);
                 break;
@@ -2283,112 +2531,29 @@ out_nounlock:
  *
  * len: the size of the address.
  */
-SCTP_STATIC int sctp_connect(struct sock *sk, struct sockaddr *uaddr,
+SCTP_STATIC int sctp_connect(struct sock *sk, struct sockaddr *addr,
                              int addr_len)
 {
-        struct sctp_sock *sp;
-        struct sctp_endpoint *ep;
-        struct sctp_association *asoc;
-        struct sctp_transport *transport;
-        union sctp_addr to;
-        struct sctp_af *af;
-        sctp_scope_t scope;
-        long timeo;
         int err = 0;
+        struct sctp_af *af;
 
         sctp_lock_sock(sk);
 
-        SCTP_DEBUG_PRINTK("%s - sk: %p, sockaddr: %p, addr_len: %d)\n",
-                          __FUNCTION__, sk, uaddr, addr_len);
-
-        sp = sctp_sk(sk);
-        ep = sp->ep;
-
-        /* connect() cannot be done on a socket that is already in ESTABLISHED
-         * state - UDP-style peeled off socket or a TCP-style socket that
-         * is already connected.
-         * It cannot be done even on a TCP-style listening socket.
-         */
-        if (sctp_sstate(sk, ESTABLISHED) ||
-            (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))) {
-                err = -EISCONN;
-                goto out_unlock;
-        }
-
-        err = sctp_verify_addr(sk, (union sctp_addr *)uaddr, addr_len);
-        if (err)
-                goto out_unlock;
+        SCTP_DEBUG_PRINTK("%s - sk: %p, sockaddr: %p, addr_len: %d\n",
+                          __FUNCTION__, sk, addr, addr_len);
 
-        if (addr_len > sizeof(to))
-                addr_len = sizeof(to);
-        memcpy(&to, uaddr, addr_len);
-        to.v4.sin_port = ntohs(to.v4.sin_port);
-
-        asoc = sctp_endpoint_lookup_assoc(ep, &to, &transport);
-        if (asoc) {
-                if (asoc->state >= SCTP_STATE_ESTABLISHED)
-                        err = -EISCONN;
-                else
-                        err = -EALREADY;
-                goto out_unlock;
-        }
-
-        /* If we could not find a matching association on the endpoint,
-         * make sure that there is no peeled-off association matching the
-         * peer address even on another socket.
-         */
-        if (sctp_endpoint_is_peeled_off(ep, &to)) {
-                err = -EADDRNOTAVAIL;
-                goto out_unlock;
-        }
-
-        /* If a bind() or sctp_bindx() is not called prior to a connect()
-         * call, the system picks an ephemeral port and will choose an address
-         * set equivalent to binding with a wildcard address.
-         */
-        if (!ep->base.bind_addr.port) {
-                if (sctp_autobind(sk)) {
-                        err = -EAGAIN;
-                        goto out_unlock;
-                }
-        }
-
-        scope = sctp_scope(&to);
-        asoc = sctp_association_new(ep, sk, scope, GFP_KERNEL);
-        if (!asoc) {
-                err = -ENOMEM;
-                goto out_unlock;
-        }
-
-        /* Prime the peer's transport structures.  */
-        transport = sctp_assoc_add_peer(asoc, &to, GFP_KERNEL);
-        if (!transport) {
-                sctp_association_free(asoc);
-                goto out_unlock;
-        }
-        err = sctp_assoc_set_bind_addr_from_ep(asoc, GFP_KERNEL);
-        if (err < 0) {
-                sctp_association_free(asoc);
-                goto out_unlock;
-        }
-
-        err = sctp_primitive_ASSOCIATE(asoc, NULL);
-        if (err < 0) {
-                sctp_association_free(asoc);
-                goto out_unlock;
+        /* Validate addr_len before calling common connect/connectx routine. */
+        af = sctp_get_af_specific(addr->sa_family);
+        if (!af || addr_len < af->sockaddr_len) {
+                err = -EINVAL;
+        } else {
+                /* Pass correct addr len to common routine (so it knows there
+                 * is only one address being passed.
+                 */
+                err = __sctp_connect(sk, addr, af->sockaddr_len);
         }
 
-        /* Initialize sk's dport and daddr for getpeername() */
-        inet_sk(sk)->dport = htons(asoc->peer.port);
-        af = sctp_get_af_specific(to.sa.sa_family);
-        af->to_sk_daddr(&to, sk);
-
-        timeo = sock_sndtimeo(sk, sk->sk_socket->file->f_flags & O_NONBLOCK);
-        err = sctp_wait_for_connect(asoc, &timeo);
-
-out_unlock:
         sctp_release_sock(sk);
-
         return err;
 }
 
@@ -2677,12 +2842,15 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len,
         /* Map ipv4 address into v4-mapped-on-v6 address.  */
         sctp_get_pf_specific(sk->sk_family)->addr_v4map(sctp_sk(sk),
                 (union sctp_addr *)&status.sstat_primary.spinfo_address);
-        status.sstat_primary.spinfo_state = transport->active;
+        status.sstat_primary.spinfo_state = transport->state;
         status.sstat_primary.spinfo_cwnd = transport->cwnd;
         status.sstat_primary.spinfo_srtt = transport->srtt;
         status.sstat_primary.spinfo_rto = jiffies_to_msecs(transport->rto);
         status.sstat_primary.spinfo_mtu = transport->pmtu;
 
+        if (status.sstat_primary.spinfo_state == SCTP_UNKNOWN)
+                status.sstat_primary.spinfo_state = SCTP_ACTIVE;
+
         if (put_user(len, optlen)) {
                 retval = -EFAULT;
                 goto out;
@@ -2733,12 +2901,15 @@ static int sctp_getsockopt_peer_addr_info(struct sock *sk, int len,
                 return -EINVAL;
 
         pinfo.spinfo_assoc_id = sctp_assoc2id(transport->asoc);
-        pinfo.spinfo_state = transport->active;
+        pinfo.spinfo_state = transport->state;
         pinfo.spinfo_cwnd = transport->cwnd;
         pinfo.spinfo_srtt = transport->srtt;
         pinfo.spinfo_rto = jiffies_to_msecs(transport->rto);
         pinfo.spinfo_mtu = transport->pmtu;
 
+        if (pinfo.spinfo_state == SCTP_UNKNOWN)
+                pinfo.spinfo_state = SCTP_ACTIVE;
+
         if (put_user(len, optlen)) {
                 retval = -EFAULT;
                 goto out;
@@ -3591,7 +3762,8 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
         int retval = 0;
         int len;
 
-        SCTP_DEBUG_PRINTK("sctp_getsockopt(sk: %p, ...)\n", sk);
+        SCTP_DEBUG_PRINTK("sctp_getsockopt(sk: %p... optname: %d)\n",
+                          sk, optname);
 
         /* I can hardly begin to describe how wrong this is.  This is
          * so broken as to be worse than useless.  The API draft
@@ -4368,15 +4540,11 @@ static struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
                  *  However, this function was corrent in any case. 8)
                  */
                 if (flags & MSG_PEEK) {
-                        unsigned long cpu_flags;
-
-                        sctp_spin_lock_irqsave(&sk->sk_receive_queue.lock,
-                                               cpu_flags);
+                        spin_lock_bh(&sk->sk_receive_queue.lock);
                         skb = skb_peek(&sk->sk_receive_queue);
                         if (skb)
                                 atomic_inc(&skb->users);
-                        sctp_spin_unlock_irqrestore(&sk->sk_receive_queue.lock,
-                                                    cpu_flags);
+                        spin_unlock_bh(&sk->sk_receive_queue.lock);
                 } else {
                         skb = skb_dequeue(&sk->sk_receive_queue);
                 }
@@ -4600,8 +4768,7 @@ out:
         return err;
 
 do_error:
-        if (asoc->counters[SCTP_COUNTER_INIT_ERROR] + 1 >=
-                                                asoc->max_init_attempts)
+        if (asoc->init_err_counter + 1 >= asoc->max_init_attempts)
                 err = -ETIMEDOUT;
         else
                 err = -ECONNREFUSED;
@@ -4686,6 +4853,7 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
         struct sctp_endpoint *newep = newsp->ep;
         struct sk_buff *skb, *tmp;
         struct sctp_ulpevent *event;
+        int flags = 0;
 
         /* Migrate socket buffer sizes and all the socket level options to the
          * new socket.
@@ -4707,6 +4875,17 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
         sctp_sk(newsk)->bind_hash = pp;
         inet_sk(newsk)->num = inet_sk(oldsk)->num;
 
+        /* Copy the bind_addr list from the original endpoint to the new
+         * endpoint so that we can handle restarts properly
+         */
+        if (assoc->peer.ipv4_address)
+                flags |= SCTP_ADDR4_PEERSUPP;
+        if (assoc->peer.ipv6_address)
+                flags |= SCTP_ADDR6_PEERSUPP;
+        sctp_bind_addr_copy(&newsp->ep->base.bind_addr,
+                             &oldsp->ep->base.bind_addr,
+                             SCTP_SCOPE_GLOBAL, GFP_KERNEL, flags);
+
         /* Move any messages in the old socket's receive queue that are for the
          * peeled off association to the new socket's receive queue.
          */
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index f30882e1e96a..0ec0fde6e6c5 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -83,7 +83,9 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
         peer->last_time_used = jiffies;
         peer->last_time_ecne_reduced = jiffies;
 
-        peer->active = SCTP_ACTIVE;
+        peer->init_sent_count = 0;
+
+        peer->state = SCTP_ACTIVE;
         peer->hb_allowed = 0;
 
         /* Initialize the default path max_retrans.  */
diff --git a/net/socket.c b/net/socket.c
index cec0cb38b9ce..6f2a17881972 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -81,6 +81,7 @@
 #include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/kmod.h>
+#include <linux/audit.h>
 
 #ifdef CONFIG_NET_RADIO
 #include <linux/wireless.h>             /* Note : will define WIRELESS_EXT */
@@ -226,7 +227,7 @@ int move_addr_to_kernel(void __user *uaddr, int ulen, void *kaddr)
                 return 0;
         if(copy_from_user(kaddr,uaddr,ulen))
                 return -EFAULT;
-        return 0;
+        return audit_sockaddr(ulen, kaddr);
 }
 
 /**
@@ -382,9 +383,8 @@ int sock_map_fd(struct socket *sock)
                         goto out;
                 }
 
-                sprintf(name, "[%lu]", SOCK_INODE(sock)->i_ino);
+                this.len = sprintf(name, "[%lu]", SOCK_INODE(sock)->i_ino);
                 this.name = name;
-                this.len = strlen(name);
                 this.hash = SOCK_INODE(sock)->i_ino;
 
                 file->f_dentry = d_alloc(sock_mnt->mnt_sb->s_root, &this);
@@ -1906,7 +1906,11 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args)
         /* copy_from_user should be SMP safe. */
         if (copy_from_user(a, args, nargs[call]))
                 return -EFAULT;
-                
+
+        err = audit_socketcall(nargs[call]/sizeof(unsigned long), a);
+        if (err)
+                return err;
+
         a0=a[0];
         a1=a[1];
         
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 9bcec9b927b9..505e2d4b3d62 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -66,10 +66,10 @@ rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt)
         u32                     flavor = pseudoflavor_to_flavor(pseudoflavor);
 
         if (flavor >= RPC_AUTH_MAXFLAVOR || !(ops = auth_flavors[flavor]))
-                return NULL;
+                return ERR_PTR(-EINVAL);
         auth = ops->create(clnt, pseudoflavor);
-        if (!auth)
-                return NULL;
+        if (IS_ERR(auth))
+                return auth;
         if (clnt->cl_auth)
                 rpcauth_destroy(clnt->cl_auth);
         clnt->cl_auth = auth;
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index a33b627cbef4..2f7b867161d2 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -660,14 +660,16 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
 {
         struct gss_auth *gss_auth;
         struct rpc_auth * auth;
+        int err = -ENOMEM; /* XXX? */
 
         dprintk("RPC:      creating GSS authenticator for client %p\n",clnt);
 
         if (!try_module_get(THIS_MODULE))
-                return NULL;
+                return ERR_PTR(err);
         if (!(gss_auth = kmalloc(sizeof(*gss_auth), GFP_KERNEL)))
                 goto out_dec;
         gss_auth->client = clnt;
+        err = -EINVAL;
         gss_auth->mech = gss_mech_get_by_pseudoflavor(flavor);
         if (!gss_auth->mech) {
                 printk(KERN_WARNING "%s: Pseudoflavor %d not found!",
@@ -675,9 +677,8 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
                 goto err_free;
         }
         gss_auth->service = gss_pseudoflavor_to_service(gss_auth->mech, flavor);
-        /* FIXME: Will go away once privacy support is merged in */
-        if (gss_auth->service == RPC_GSS_SVC_PRIVACY)
-                gss_auth->service = RPC_GSS_SVC_INTEGRITY;
+        if (gss_auth->service == 0)
+                goto err_put_mech;
         INIT_LIST_HEAD(&gss_auth->upcalls);
         spin_lock_init(&gss_auth->lock);
         auth = &gss_auth->rpc_auth;
@@ -687,15 +688,18 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
         auth->au_flavor = flavor;
         atomic_set(&auth->au_count, 1);
 
-        if (rpcauth_init_credcache(auth, GSS_CRED_EXPIRE) < 0)
+        err = rpcauth_init_credcache(auth, GSS_CRED_EXPIRE);
+        if (err)
                 goto err_put_mech;
 
         snprintf(gss_auth->path, sizeof(gss_auth->path), "%s/%s",
                         clnt->cl_pathname,
                         gss_auth->mech->gm_name);
         gss_auth->dentry = rpc_mkpipe(gss_auth->path, clnt, &gss_upcall_ops, RPC_PIPE_WAIT_FOR_OPEN);
-        if (IS_ERR(gss_auth->dentry))
+        if (IS_ERR(gss_auth->dentry)) {
+                err = PTR_ERR(gss_auth->dentry);
                 goto err_put_mech;
+        }
 
         return auth;
 err_put_mech:
@@ -704,7 +708,7 @@ err_free:
         kfree(gss_auth);
 out_dec:
         module_put(THIS_MODULE);
-        return NULL;
+        return ERR_PTR(err);
 }
 
 static void
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 02bc029d46fe..f17e6153b688 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -97,12 +97,13 @@ rpc_setup_pipedir(struct rpc_clnt *clnt, char *dir_name)
  * made to sleep too long.
  */
 struct rpc_clnt *
-rpc_create_client(struct rpc_xprt *xprt, char *servname,
+rpc_new_client(struct rpc_xprt *xprt, char *servname,
                   struct rpc_program *program, u32 vers,
                   rpc_authflavor_t flavor)
 {
         struct rpc_version      *version;
         struct rpc_clnt         *clnt = NULL;
+        struct rpc_auth         *auth;
         int err;
         int len;
 
@@ -157,10 +158,11 @@ rpc_create_client(struct rpc_xprt *xprt, char *servname,
         if (err < 0)
                 goto out_no_path;
 
-        err = -ENOMEM;
-        if (!rpcauth_create(flavor, clnt)) {
+        auth = rpcauth_create(flavor, clnt);
+        if (IS_ERR(auth)) {
                 printk(KERN_INFO "RPC: Couldn't create auth handle (flavor %u)\n",
                                 flavor);
+                err = PTR_ERR(auth);
                 goto out_no_auth;
         }
 
@@ -178,6 +180,37 @@ out_no_path:
                 kfree(clnt->cl_server);
         kfree(clnt);
 out_err:
+        xprt_destroy(xprt);
+        return ERR_PTR(err);
+}
+
+/**
+ * Create an RPC client
+ * @xprt - pointer to xprt struct
+ * @servname - name of server
+ * @info - rpc_program
+ * @version - rpc_program version
+ * @authflavor - rpc_auth flavour to use
+ *
+ * Creates an RPC client structure, then pings the server in order to
+ * determine if it is up, and if it supports this program and version.
+ *
+ * This function should never be called by asynchronous tasks such as
+ * the portmapper.
+ */
+struct rpc_clnt *rpc_create_client(struct rpc_xprt *xprt, char *servname,
+                struct rpc_program *info, u32 version, rpc_authflavor_t authflavor)
+{
+        struct rpc_clnt *clnt;
+        int err;
+        
+        clnt = rpc_new_client(xprt, servname, info, version, authflavor);
+        if (IS_ERR(clnt))
+                return clnt;
+        err = rpc_ping(clnt, RPC_TASK_SOFT|RPC_TASK_NOINTR);
+        if (err == 0)
+                return clnt;
+        rpc_shutdown_client(clnt);
         return ERR_PTR(err);
 }
 
@@ -208,6 +241,8 @@ rpc_clone_client(struct rpc_clnt *clnt)
         rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval);
         if (new->cl_auth)
                 atomic_inc(&new->cl_auth->au_count);
+        new->cl_pmap            = &new->cl_pmap_default;
+        rpc_init_wait_queue(&new->cl_pmap_default.pm_bindwait, "bindwait");
         return new;
 out_no_clnt:
         printk(KERN_INFO "RPC: out of memory in %s\n", __FUNCTION__);
@@ -296,6 +331,44 @@ rpc_release_client(struct rpc_clnt *clnt)
                 rpc_destroy_client(clnt);
 }
 
+/**
+ * rpc_bind_new_program - bind a new RPC program to an existing client
+ * @old - old rpc_client
+ * @program - rpc program to set
+ * @vers - rpc program version
+ *
+ * Clones the rpc client and sets up a new RPC program. This is mainly
+ * of use for enabling different RPC programs to share the same transport.
+ * The Sun NFSv2/v3 ACL protocol can do this.
+ */
+struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *old,
+                                      struct rpc_program *program,
+                                      int vers)
+{
+        struct rpc_clnt *clnt;
+        struct rpc_version *version;
+        int err;
+
+        BUG_ON(vers >= program->nrvers || !program->version[vers]);
+        version = program->version[vers];
+        clnt = rpc_clone_client(old);
+        if (IS_ERR(clnt))
+                goto out;
+        clnt->cl_procinfo = version->procs;
+        clnt->cl_maxproc  = version->nrprocs;
+        clnt->cl_protname = program->name;
+        clnt->cl_prog     = program->number;
+        clnt->cl_vers     = version->number;
+        clnt->cl_stats    = program->stats;
+        err = rpc_ping(clnt, RPC_TASK_SOFT|RPC_TASK_NOINTR);
+        if (err != 0) {
+                rpc_shutdown_client(clnt);
+                clnt = ERR_PTR(err);
+        }
+out:    
+        return clnt;
+}
+
 /*
  * Default callback for async RPC calls
  */
@@ -305,38 +378,41 @@ rpc_default_callback(struct rpc_task *task)
 }
 
 /*
- *      Export the signal mask handling for aysnchronous code that
+ *      Export the signal mask handling for synchronous code that
  *      sleeps on RPC calls
  */
+#define RPC_INTR_SIGNALS (sigmask(SIGINT) | sigmask(SIGQUIT) | sigmask(SIGKILL))
  
+static void rpc_save_sigmask(sigset_t *oldset, int intr)
+{
+        unsigned long   sigallow = 0;
+        sigset_t sigmask;
+
+        /* Block all signals except those listed in sigallow */
+        if (intr)
+                sigallow |= RPC_INTR_SIGNALS;
+        siginitsetinv(&sigmask, sigallow);
+        sigprocmask(SIG_BLOCK, &sigmask, oldset);
+}
+
+static inline void rpc_task_sigmask(struct rpc_task *task, sigset_t *oldset)
+{
+        rpc_save_sigmask(oldset, !RPC_TASK_UNINTERRUPTIBLE(task));
+}
+
+static inline void rpc_restore_sigmask(sigset_t *oldset)
+{
+        sigprocmask(SIG_SETMASK, oldset, NULL);
+}
+
 void rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset)
 {
-        unsigned long   sigallow = sigmask(SIGKILL);
-        unsigned long   irqflags;
-        
-        /* Turn off various signals */
-        if (clnt->cl_intr) {
-                struct k_sigaction *action = current->sighand->action;
-                if (action[SIGINT-1].sa.sa_handler == SIG_DFL)
-                        sigallow |= sigmask(SIGINT);
-                if (action[SIGQUIT-1].sa.sa_handler == SIG_DFL)
-                        sigallow |= sigmask(SIGQUIT);
-        }
-        spin_lock_irqsave(&current->sighand->siglock, irqflags);
-        *oldset = current->blocked;
-        siginitsetinv(&current->blocked, sigallow & ~oldset->sig[0]);
-        recalc_sigpending();
-        spin_unlock_irqrestore(&current->sighand->siglock, irqflags);
+        rpc_save_sigmask(oldset, clnt->cl_intr);
 }
 
 void rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset)
 {
-        unsigned long   irqflags;
-        
-        spin_lock_irqsave(&current->sighand->siglock, irqflags);
-        current->blocked = *oldset;
-        recalc_sigpending();
-        spin_unlock_irqrestore(&current->sighand->siglock, irqflags);
+        rpc_restore_sigmask(oldset);
 }
 
 /*
@@ -354,26 +430,26 @@ int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
 
         BUG_ON(flags & RPC_TASK_ASYNC);
 
-        rpc_clnt_sigmask(clnt, &oldset);                
-
         status = -ENOMEM;
         task = rpc_new_task(clnt, NULL, flags);
         if (task == NULL)
                 goto out;
 
+        /* Mask signals on RPC calls _and_ GSS_AUTH upcalls */
+        rpc_task_sigmask(task, &oldset);
+
         rpc_call_setup(task, msg, 0);
 
         /* Set up the call info struct and execute the task */
-        if (task->tk_status == 0)
+        if (task->tk_status == 0) {
                 status = rpc_execute(task);
-        else {
+        } else {
                 status = task->tk_status;
                 rpc_release_task(task);
         }
 
+        rpc_restore_sigmask(&oldset);
 out:
-        rpc_clnt_sigunmask(clnt, &oldset);              
-
         return status;
 }
 
@@ -394,8 +470,6 @@ rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
 
         flags |= RPC_TASK_ASYNC;
 
-        rpc_clnt_sigmask(clnt, &oldset);                
-
         /* Create/initialize a new RPC task */
         if (!callback)
                 callback = rpc_default_callback;
@@ -404,6 +478,9 @@ rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
                 goto out;
         task->tk_calldata = data;
 
+        /* Mask signals on GSS_AUTH upcalls */
+        rpc_task_sigmask(task, &oldset);                
+
         rpc_call_setup(task, msg, 0);
 
         /* Set up the call info struct and execute the task */
@@ -413,9 +490,8 @@ rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
         else
                 rpc_release_task(task);
 
+        rpc_restore_sigmask(&oldset);           
 out:
-        rpc_clnt_sigunmask(clnt, &oldset);              
-
         return status;
 }
 
@@ -593,7 +669,7 @@ call_allocate(struct rpc_task *task)
                 return;
         printk(KERN_INFO "RPC: buffer allocation failed for task %p\n", task); 
 
-        if (RPC_IS_ASYNC(task) || !(task->tk_client->cl_intr && signalled())) {
+        if (RPC_IS_ASYNC(task) || !signalled()) {
                 xprt_release(task);
                 task->tk_action = call_reserve;
                 rpc_delay(task, HZ>>4);
@@ -957,7 +1033,9 @@ call_header(struct rpc_task *task)
         *p++ = htonl(clnt->cl_prog);    /* program number */
         *p++ = htonl(clnt->cl_vers);    /* program version */
         *p++ = htonl(task->tk_msg.rpc_proc->p_proc);    /* procedure */
-        return rpcauth_marshcred(task, p);
+        p = rpcauth_marshcred(task, p);
+        req->rq_slen = xdr_adjust_iovec(&req->rq_svec[0], p);
+        return p;
 }
 
 /*
@@ -986,10 +1064,11 @@ call_verify(struct rpc_task *task)
                         case RPC_AUTH_ERROR:
                                 break;
                         case RPC_MISMATCH:
-                                printk(KERN_WARNING "%s: RPC call version mismatch!\n", __FUNCTION__);
-                                goto out_eio;
+                                dprintk("%s: RPC call version mismatch!\n", __FUNCTION__);
+                                error = -EPROTONOSUPPORT;
+                                goto out_err;
                         default:
-                                printk(KERN_WARNING "%s: RPC call rejected, unknown error: %x\n", __FUNCTION__, n);
+                                dprintk("%s: RPC call rejected, unknown error: %x\n", __FUNCTION__, n);
                                 goto out_eio;
                 }
                 if (--len < 0)
@@ -1040,23 +1119,26 @@ call_verify(struct rpc_task *task)
         case RPC_SUCCESS:
                 return p;
         case RPC_PROG_UNAVAIL:
-                printk(KERN_WARNING "RPC: call_verify: program %u is unsupported by server %s\n",
+                dprintk("RPC: call_verify: program %u is unsupported by server %s\n",
                                 (unsigned int)task->tk_client->cl_prog,
                                 task->tk_client->cl_server);
-                goto out_eio;
+                error = -EPFNOSUPPORT;
+                goto out_err;
         case RPC_PROG_MISMATCH:
-                printk(KERN_WARNING "RPC: call_verify: program %u, version %u unsupported by server %s\n",
+                dprintk("RPC: call_verify: program %u, version %u unsupported by server %s\n",
                                 (unsigned int)task->tk_client->cl_prog,
                                 (unsigned int)task->tk_client->cl_vers,
                                 task->tk_client->cl_server);
-                goto out_eio;
+                error = -EPROTONOSUPPORT;
+                goto out_err;
         case RPC_PROC_UNAVAIL:
-                printk(KERN_WARNING "RPC: call_verify: proc %p unsupported by program %u, version %u on server %s\n",
+                dprintk("RPC: call_verify: proc %p unsupported by program %u, version %u on server %s\n",
                                 task->tk_msg.rpc_proc,
                                 task->tk_client->cl_prog,
                                 task->tk_client->cl_vers,
                                 task->tk_client->cl_server);
-                goto out_eio;
+                error = -EOPNOTSUPP;
+                goto out_err;
         case RPC_GARBAGE_ARGS:
                 dprintk("RPC: %4d %s: server saw garbage\n", task->tk_pid, __FUNCTION__);
                 break;                  /* retry */
@@ -1069,7 +1151,7 @@ out_retry:
         task->tk_client->cl_stats->rpcgarbage++;
         if (task->tk_garb_retry) {
                 task->tk_garb_retry--;
-                dprintk(KERN_WARNING "RPC %s: retrying %4d\n", __FUNCTION__, task->tk_pid);
+                dprintk("RPC %s: retrying %4d\n", __FUNCTION__, task->tk_pid);
                 task->tk_action = call_bind;
                 return NULL;
         }
@@ -1083,3 +1165,30 @@ out_overflow:
         printk(KERN_WARNING "RPC %s: server reply was truncated.\n", __FUNCTION__);
         goto out_retry;
 }
+
+static int rpcproc_encode_null(void *rqstp, u32 *data, void *obj)
+{
+        return 0;
+}
+
+static int rpcproc_decode_null(void *rqstp, u32 *data, void *obj)
+{
+        return 0;
+}
+
+static struct rpc_procinfo rpcproc_null = {
+        .p_encode = rpcproc_encode_null,
+        .p_decode = rpcproc_decode_null,
+};
+
+int rpc_ping(struct rpc_clnt *clnt, int flags)
+{
+        struct rpc_message msg = {
+                .rpc_proc = &rpcproc_null,
+        };
+        int err;
+        msg.rpc_cred = authnull_ops.lookup_cred(NULL, NULL, 0);
+        err = rpc_call_sync(clnt, &msg, flags);
+        put_rpccred(msg.rpc_cred);
+        return err;
+}
diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c
index d0b1d2c34a4d..4e81f2766923 100644
--- a/net/sunrpc/pmap_clnt.c
+++ b/net/sunrpc/pmap_clnt.c
@@ -53,6 +53,9 @@ rpc_getport(struct rpc_task *task, struct rpc_clnt *clnt)
                         task->tk_pid, clnt->cl_server,
                         map->pm_prog, map->pm_vers, map->pm_prot);
 
+        /* Autobind on cloned rpc clients is discouraged */
+        BUG_ON(clnt->cl_parent != clnt);
+
         spin_lock(&pmap_lock);
         if (map->pm_binding) {
                 rpc_sleep_on(&map->pm_bindwait, task, NULL, NULL);
@@ -207,12 +210,10 @@ pmap_create(char *hostname, struct sockaddr_in *srvaddr, int proto)
         xprt->addr.sin_port = htons(RPC_PMAP_PORT);
 
         /* printk("pmap: create clnt\n"); */
-        clnt = rpc_create_client(xprt, hostname,
+        clnt = rpc_new_client(xprt, hostname,
                                 &pmap_program, RPC_PMAP_VERSION,
                                 RPC_AUTH_UNIX);
-        if (IS_ERR(clnt)) {
-                xprt_destroy(xprt);
-        } else {
+        if (!IS_ERR(clnt)) {
                 clnt->cl_softrtry = 1;
                 clnt->cl_chatty   = 1;
                 clnt->cl_oneshot  = 1;
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index c06614d0e31d..2d9eb7fbd521 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -290,7 +290,7 @@ static void rpc_make_runnable(struct rpc_task *task)
                         return;
                 }
         } else
-                wake_up(&task->u.tk_wait.waitq);
+                wake_up_bit(&task->tk_runstate, RPC_TASK_QUEUED);
 }
 
 /*
@@ -555,6 +555,38 @@ __rpc_atrun(struct rpc_task *task)
 }
 
 /*
+ * Helper that calls task->tk_exit if it exists and then returns
+ * true if we should exit __rpc_execute.
+ */
+static inline int __rpc_do_exit(struct rpc_task *task)
+{
+        if (task->tk_exit != NULL) {
+                lock_kernel();
+                task->tk_exit(task);
+                unlock_kernel();
+                /* If tk_action is non-null, we should restart the call */
+                if (task->tk_action != NULL) {
+                        if (!RPC_ASSASSINATED(task)) {
+                                /* Release RPC slot and buffer memory */
+                                xprt_release(task);
+                                rpc_free(task);
+                                return 0;
+                        }
+                        printk(KERN_ERR "RPC: dead task tried to walk away.\n");
+                }
+        }
+        return 1;
+}
+
+static int rpc_wait_bit_interruptible(void *word)
+{
+        if (signal_pending(current))
+                return -ERESTARTSYS;
+        schedule();
+        return 0;
+}
+
+/*
  * This is the RPC `scheduler' (or rather, the finite state machine).
  */
 static int __rpc_execute(struct rpc_task *task)
@@ -566,8 +598,7 @@ static int __rpc_execute(struct rpc_task *task)
 
         BUG_ON(RPC_IS_QUEUED(task));
 
- restarted:
-        while (1) {
+        for (;;) {
                 /*
                  * Garbage collection of pending timers...
                  */
@@ -600,11 +631,12 @@ static int __rpc_execute(struct rpc_task *task)
                  * by someone else.
                  */
                 if (!RPC_IS_QUEUED(task)) {
-                        if (!task->tk_action)
+                        if (task->tk_action != NULL) {
+                                lock_kernel();
+                                task->tk_action(task);
+                                unlock_kernel();
+                        } else if (__rpc_do_exit(task))
                                 break;
-                        lock_kernel();
-                        task->tk_action(task);
-                        unlock_kernel();
                 }
 
                 /*
@@ -624,44 +656,26 @@ static int __rpc_execute(struct rpc_task *task)
 
                 /* sync task: sleep here */
                 dprintk("RPC: %4d sync task going to sleep\n", task->tk_pid);
-                if (RPC_TASK_UNINTERRUPTIBLE(task)) {
-                        __wait_event(task->u.tk_wait.waitq, !RPC_IS_QUEUED(task));
-                } else {
-                        __wait_event_interruptible(task->u.tk_wait.waitq, !RPC_IS_QUEUED(task), status);
+                /* Note: Caller should be using rpc_clnt_sigmask() */
+                status = out_of_line_wait_on_bit(&task->tk_runstate,
+                                RPC_TASK_QUEUED, rpc_wait_bit_interruptible,
+                                TASK_INTERRUPTIBLE);
+                if (status == -ERESTARTSYS) {
                         /*
                          * When a sync task receives a signal, it exits with
                          * -ERESTARTSYS. In order to catch any callbacks that
                          * clean up after sleeping on some queue, we don't
                          * break the loop here, but go around once more.
                          */
-                        if (status == -ERESTARTSYS) {
-                                dprintk("RPC: %4d got signal\n", task->tk_pid);
-                                task->tk_flags |= RPC_TASK_KILLED;
-                                rpc_exit(task, -ERESTARTSYS);
-                                rpc_wake_up_task(task);
-                        }
+                        dprintk("RPC: %4d got signal\n", task->tk_pid);
+                        task->tk_flags |= RPC_TASK_KILLED;
+                        rpc_exit(task, -ERESTARTSYS);
+                        rpc_wake_up_task(task);
                 }
                 rpc_set_running(task);
                 dprintk("RPC: %4d sync task resuming\n", task->tk_pid);
         }
 
-        if (task->tk_exit) {
-                lock_kernel();
-                task->tk_exit(task);
-                unlock_kernel();
-                /* If tk_action is non-null, the user wants us to restart */
-                if (task->tk_action) {
-                        if (!RPC_ASSASSINATED(task)) {
-                                /* Release RPC slot and buffer memory */
-                                if (task->tk_rqstp)
-                                        xprt_release(task);
-                                rpc_free(task);
-                                goto restarted;
-                        }
-                        printk(KERN_ERR "RPC: dead task tries to walk away.\n");
-                }
-        }
-
         dprintk("RPC: %4d exit() = %d\n", task->tk_pid, task->tk_status);
         status = task->tk_status;
 
@@ -759,8 +773,6 @@ void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt, rpc_action call
 
         /* Initialize workqueue for async tasks */
         task->tk_workqueue = rpciod_workqueue;
-        if (!RPC_IS_ASYNC(task))
-                init_waitqueue_head(&task->u.tk_wait.waitq);
 
         if (clnt) {
                 atomic_inc(&clnt->cl_users);
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index d4f26bf9e732..62a073495276 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -41,7 +41,9 @@ EXPORT_SYMBOL(rpc_release_task);
 
 /* RPC client functions */
 EXPORT_SYMBOL(rpc_create_client);
+EXPORT_SYMBOL(rpc_new_client);
 EXPORT_SYMBOL(rpc_clone_client);
+EXPORT_SYMBOL(rpc_bind_new_program);
 EXPORT_SYMBOL(rpc_destroy_client);
 EXPORT_SYMBOL(rpc_shutdown_client);
 EXPORT_SYMBOL(rpc_release_client);
@@ -61,7 +63,6 @@ EXPORT_SYMBOL(rpc_mkpipe);
 
 /* Client transport */
 EXPORT_SYMBOL(xprt_create_proto);
-EXPORT_SYMBOL(xprt_destroy);
 EXPORT_SYMBOL(xprt_set_timeout);
 EXPORT_SYMBOL(xprt_udp_slot_table_entries);
 EXPORT_SYMBOL(xprt_tcp_slot_table_entries);
@@ -129,6 +130,10 @@ EXPORT_SYMBOL(xdr_encode_netobj);
 EXPORT_SYMBOL(xdr_encode_pages);
 EXPORT_SYMBOL(xdr_inline_pages);
 EXPORT_SYMBOL(xdr_shift_buf);
+EXPORT_SYMBOL(xdr_encode_word);
+EXPORT_SYMBOL(xdr_decode_word);
+EXPORT_SYMBOL(xdr_encode_array2);
+EXPORT_SYMBOL(xdr_decode_array2);
 EXPORT_SYMBOL(xdr_buf_from_iov);
 EXPORT_SYMBOL(xdr_buf_subsegment);
 EXPORT_SYMBOL(xdr_buf_read_netobj);
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index bb2d99f33315..e9bd91265f70 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -35,20 +35,24 @@ svc_create(struct svc_program *prog, unsigned int bufsize)
         if (!(serv = (struct svc_serv *) kmalloc(sizeof(*serv), GFP_KERNEL)))
                 return NULL;
         memset(serv, 0, sizeof(*serv));
+        serv->sv_name      = prog->pg_name;
         serv->sv_program   = prog;
         serv->sv_nrthreads = 1;
         serv->sv_stats     = prog->pg_stats;
         serv->sv_bufsz     = bufsize? bufsize : 4096;
-        prog->pg_lovers = prog->pg_nvers-1;
         xdrsize = 0;
-        for (vers=0; vers<prog->pg_nvers ; vers++)
-                if (prog->pg_vers[vers]) {
-                        prog->pg_hivers = vers;
-                        if (prog->pg_lovers > vers)
-                                prog->pg_lovers = vers;
-                        if (prog->pg_vers[vers]->vs_xdrsize > xdrsize)
-                                xdrsize = prog->pg_vers[vers]->vs_xdrsize;
-                }
+        while (prog) {
+                prog->pg_lovers = prog->pg_nvers-1;
+                for (vers=0; vers<prog->pg_nvers ; vers++)
+                        if (prog->pg_vers[vers]) {
+                                prog->pg_hivers = vers;
+                                if (prog->pg_lovers > vers)
+                                        prog->pg_lovers = vers;
+                                if (prog->pg_vers[vers]->vs_xdrsize > xdrsize)
+                                        xdrsize = prog->pg_vers[vers]->vs_xdrsize;
+                        }
+                prog = prog->pg_next;
+        }
         serv->sv_xdrsize   = xdrsize;
         INIT_LIST_HEAD(&serv->sv_threads);
         INIT_LIST_HEAD(&serv->sv_sockets);
@@ -56,8 +60,6 @@ svc_create(struct svc_program *prog, unsigned int bufsize)
         INIT_LIST_HEAD(&serv->sv_permsocks);
         spin_lock_init(&serv->sv_lock);
 
-        serv->sv_name      = prog->pg_name;
-
         /* Remove any stale portmap registrations */
         svc_register(serv, 0, 0);
 
@@ -281,6 +283,7 @@ svc_process(struct svc_serv *serv, struct svc_rqst *rqstp)
         rqstp->rq_res.len = 0;
         rqstp->rq_res.page_base = 0;
         rqstp->rq_res.page_len = 0;
+        rqstp->rq_res.buflen = PAGE_SIZE;
         rqstp->rq_res.tail[0].iov_len = 0;
         /* tcp needs a space for the record length... */
         if (rqstp->rq_prot == IPPROTO_TCP)
@@ -338,7 +341,10 @@ svc_process(struct svc_serv *serv, struct svc_rqst *rqstp)
                 goto sendit;
         }
                 
-        if (prog != progp->pg_prog)
+        for (progp = serv->sv_program; progp; progp = progp->pg_next)
+                if (prog == progp->pg_prog)
+                        break;
+        if (progp == NULL)
                 goto err_bad_prog;
 
         if (vers >= progp->pg_nvers ||
@@ -451,11 +457,7 @@ err_bad_auth:
         goto sendit;
 
 err_bad_prog:
-#ifdef RPC_PARANOIA
-        if (prog != 100227 || progp->pg_prog != 100003)
-                printk("svc: unknown program %d (me %d)\n", prog, progp->pg_prog);
-        /* else it is just a Solaris client seeing if ACLs are supported */
-#endif
+        dprintk("svc: unknown program %d\n", prog);
         serv->sv_stats->rpcbadfmt++;
         svc_putu32(resv, rpc_prog_unavail);
         goto sendit;
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 2b99b4028d31..d6baf6fdf8a9 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -8,6 +8,7 @@
 #include <linux/err.h>
 #include <linux/seq_file.h>
 #include <linux/hash.h>
+#include <linux/string.h>
 
 #define RPCDBG_FACILITY RPCDBG_AUTH
 
@@ -20,14 +21,6 @@
  */
 
 
-static char *strdup(char *s)
-{
-        char *rv = kmalloc(strlen(s)+1, GFP_KERNEL);
-        if (rv)
-                strcpy(rv, s);
-        return rv;
-}
-
 struct unix_domain {
         struct auth_domain      h;
         int     addr_changes;
@@ -55,7 +48,7 @@ struct auth_domain *unix_domain_find(char *name)
         if (new == NULL)
                 return NULL;
         cache_init(&new->h.h);
-        new->h.name = strdup(name);
+        new->h.name = kstrdup(name, GFP_KERNEL);
         new->h.flavour = RPC_AUTH_UNIX;
         new->addr_changes = 0;
         new->h.h.expiry_time = NEVER;
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 05907035bc96..56db8f13e6cb 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1185,8 +1185,8 @@ svc_recv(struct svc_serv *serv, struct svc_rqst *rqstp, long timeout)
         arg->page_len = (pages-2)*PAGE_SIZE;
         arg->len = (pages-1)*PAGE_SIZE;
         arg->tail[0].iov_len = 0;
-        
-        try_to_freeze(PF_FREEZE);
+
+        try_to_freeze();
         if (signalled())
                 return -EINTR;
 
@@ -1227,7 +1227,7 @@ svc_recv(struct svc_serv *serv, struct svc_rqst *rqstp, long timeout)
 
                 schedule_timeout(timeout);
 
-                try_to_freeze(PF_FREEZE);
+                try_to_freeze();
 
                 spin_lock_bh(&serv->sv_lock);
                 remove_wait_queue(&rqstp->rq_wait, &wait);
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 67b9f035ba86..8a4d9c106af1 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -176,21 +176,23 @@ xdr_inline_pages(struct xdr_buf *xdr, unsigned int offset,
         xdr->buflen += len;
 }
 
-void
+ssize_t
 xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base,
                           skb_reader_t *desc,
                           skb_read_actor_t copy_actor)
 {
         struct page     **ppage = xdr->pages;
         unsigned int    len, pglen = xdr->page_len;
+        ssize_t         copied = 0;
         int             ret;
 
         len = xdr->head[0].iov_len;
         if (base < len) {
                 len -= base;
                 ret = copy_actor(desc, (char *)xdr->head[0].iov_base + base, len);
+                copied += ret;
                 if (ret != len || !desc->count)
-                        return;
+                        goto out;
                 base = 0;
         } else
                 base -= len;
@@ -210,6 +212,17 @@ xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base,
         do {
                 char *kaddr;
 
+                /* ACL likes to be lazy in allocating pages - ACLs
+                 * are small by default but can get huge. */
+                if (unlikely(*ppage == NULL)) {
+                        *ppage = alloc_page(GFP_ATOMIC);
+                        if (unlikely(*ppage == NULL)) {
+                                if (copied == 0)
+                                        copied = -ENOMEM;
+                                goto out;
+                        }
+                }
+
                 len = PAGE_CACHE_SIZE;
                 kaddr = kmap_atomic(*ppage, KM_SKB_SUNRPC_DATA);
                 if (base) {
@@ -225,14 +238,17 @@ xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base,
                 }
                 flush_dcache_page(*ppage);
                 kunmap_atomic(kaddr, KM_SKB_SUNRPC_DATA);
+                copied += ret;
                 if (ret != len || !desc->count)
-                        return;
+                        goto out;
                 ppage++;
         } while ((pglen -= len) != 0);
 copy_tail:
         len = xdr->tail[0].iov_len;
         if (base < len)
-                copy_actor(desc, (char *)xdr->tail[0].iov_base + base, len - base);
+                copied += copy_actor(desc, (char *)xdr->tail[0].iov_base + base, len - base);
+out:
+        return copied;
 }
 
 
@@ -616,12 +632,24 @@ xdr_shift_buf(struct xdr_buf *buf, size_t len)
 void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, uint32_t *p)
 {
         struct kvec *iov = buf->head;
+        int scratch_len = buf->buflen - buf->page_len - buf->tail[0].iov_len;
 
+        BUG_ON(scratch_len < 0);
         xdr->buf = buf;
         xdr->iov = iov;
-        xdr->end = (uint32_t *)((char *)iov->iov_base + iov->iov_len);
-        buf->len = iov->iov_len = (char *)p - (char *)iov->iov_base;
-        xdr->p = p;
+        xdr->p = (uint32_t *)((char *)iov->iov_base + iov->iov_len);
+        xdr->end = (uint32_t *)((char *)iov->iov_base + scratch_len);
+        BUG_ON(iov->iov_len > scratch_len);
+
+        if (p != xdr->p && p != NULL) {
+                size_t len;
+
+                BUG_ON(p < xdr->p || p > xdr->end);
+                len = (char *)p - (char *)xdr->p;
+                xdr->p = p;
+                buf->len += len;
+                iov->iov_len += len;
+        }
 }
 EXPORT_SYMBOL(xdr_init_encode);
 
@@ -859,8 +887,34 @@ out:
         return status;
 }
 
-static int
-read_u32_from_xdr_buf(struct xdr_buf *buf, int base, u32 *obj)
+/* obj is assumed to point to allocated memory of size at least len: */
+int
+write_bytes_to_xdr_buf(struct xdr_buf *buf, int base, void *obj, int len)
+{
+        struct xdr_buf subbuf;
+        int this_len;
+        int status;
+
+        status = xdr_buf_subsegment(buf, &subbuf, base, len);
+        if (status)
+                goto out;
+        this_len = min(len, (int)subbuf.head[0].iov_len);
+        memcpy(subbuf.head[0].iov_base, obj, this_len);
+        len -= this_len;
+        obj += this_len;
+        this_len = min(len, (int)subbuf.page_len);
+        if (this_len)
+                _copy_to_pages(subbuf.pages, subbuf.page_base, obj, this_len);
+        len -= this_len;
+        obj += this_len;
+        this_len = min(len, (int)subbuf.tail[0].iov_len);
+        memcpy(subbuf.tail[0].iov_base, obj, this_len);
+out:
+        return status;
+}
+
+int
+xdr_decode_word(struct xdr_buf *buf, int base, u32 *obj)
 {
         u32     raw;
         int     status;
@@ -872,6 +926,14 @@ read_u32_from_xdr_buf(struct xdr_buf *buf, int base, u32 *obj)
         return 0;
 }
 
+int
+xdr_encode_word(struct xdr_buf *buf, int base, u32 obj)
+{
+        u32     raw = htonl(obj);
+
+        return write_bytes_to_xdr_buf(buf, base, &raw, sizeof(obj));
+}
+
 /* If the netobj starting offset bytes from the start of xdr_buf is contained
  * entirely in the head or the tail, set object to point to it; otherwise
  * try to find space for it at the end of the tail, copy it there, and
@@ -882,7 +944,7 @@ xdr_buf_read_netobj(struct xdr_buf *buf, struct xdr_netobj *obj, int offset)
         u32     tail_offset = buf->head[0].iov_len + buf->page_len;
         u32     obj_end_offset;
 
-        if (read_u32_from_xdr_buf(buf, offset, &obj->len))
+        if (xdr_decode_word(buf, offset, &obj->len))
                 goto out;
         obj_end_offset = offset + 4 + obj->len;
 
@@ -915,3 +977,219 @@ xdr_buf_read_netobj(struct xdr_buf *buf, struct xdr_netobj *obj, int offset)
 out:
         return -1;
 }
+
+/* Returns 0 on success, or else a negative error code. */
+static int
+xdr_xcode_array2(struct xdr_buf *buf, unsigned int base,
+                 struct xdr_array2_desc *desc, int encode)
+{
+        char *elem = NULL, *c;
+        unsigned int copied = 0, todo, avail_here;
+        struct page **ppages = NULL;
+        int err;
+
+        if (encode) {
+                if (xdr_encode_word(buf, base, desc->array_len) != 0)
+                        return -EINVAL;
+        } else {
+                if (xdr_decode_word(buf, base, &desc->array_len) != 0 ||
+                    (unsigned long) base + 4 + desc->array_len *
+                                    desc->elem_size > buf->len)
+                        return -EINVAL;
+        }
+        base += 4;
+
+        if (!desc->xcode)
+                return 0;
+
+        todo = desc->array_len * desc->elem_size;
+
+        /* process head */
+        if (todo && base < buf->head->iov_len) {
+                c = buf->head->iov_base + base;
+                avail_here = min_t(unsigned int, todo,
+                                   buf->head->iov_len - base);
+                todo -= avail_here;
+
+                while (avail_here >= desc->elem_size) {
+                        err = desc->xcode(desc, c);
+                        if (err)
+                                goto out;
+                        c += desc->elem_size;
+                        avail_here -= desc->elem_size;
+                }
+                if (avail_here) {
+                        if (!elem) {
+                                elem = kmalloc(desc->elem_size, GFP_KERNEL);
+                                err = -ENOMEM;
+                                if (!elem)
+                                        goto out;
+                        }
+                        if (encode) {
+                                err = desc->xcode(desc, elem);
+                                if (err)
+                                        goto out;
+                                memcpy(c, elem, avail_here);
+                        } else
+                                memcpy(elem, c, avail_here);
+                        copied = avail_here;
+                }
+                base = buf->head->iov_len;  /* align to start of pages */
+        }
+
+        /* process pages array */
+        base -= buf->head->iov_len;
+        if (todo && base < buf->page_len) {
+                unsigned int avail_page;
+
+                avail_here = min(todo, buf->page_len - base);
+                todo -= avail_here;
+
+                base += buf->page_base;
+                ppages = buf->pages + (base >> PAGE_CACHE_SHIFT);
+                base &= ~PAGE_CACHE_MASK;
+                avail_page = min_t(unsigned int, PAGE_CACHE_SIZE - base,
+                                        avail_here);
+                c = kmap(*ppages) + base;
+
+                while (avail_here) {
+                        avail_here -= avail_page;
+                        if (copied || avail_page < desc->elem_size) {
+                                unsigned int l = min(avail_page,
+                                        desc->elem_size - copied);
+                                if (!elem) {
+                                        elem = kmalloc(desc->elem_size,
+                                                       GFP_KERNEL);
+                                        err = -ENOMEM;
+                                        if (!elem)
+                                                goto out;
+                                }
+                                if (encode) {
+                                        if (!copied) {
+                                                err = desc->xcode(desc, elem);
+                                                if (err)
+                                                        goto out;
+                                        }
+                                        memcpy(c, elem + copied, l);
+                                        copied += l;
+                                        if (copied == desc->elem_size)
+                                                copied = 0;
+                                } else {
+                                        memcpy(elem + copied, c, l);
+                                        copied += l;
+                                        if (copied == desc->elem_size) {
+                                                err = desc->xcode(desc, elem);
+                                                if (err)
+                                                        goto out;
+                                                copied = 0;
+                                        }
+                                }
+                                avail_page -= l;
+                                c += l;
+                        }
+                        while (avail_page >= desc->elem_size) {
+                                err = desc->xcode(desc, c);
+                                if (err)
+                                        goto out;
+                                c += desc->elem_size;
+                                avail_page -= desc->elem_size;
+                        }
+                        if (avail_page) {
+                                unsigned int l = min(avail_page,
+                                            desc->elem_size - copied);
+                                if (!elem) {
+                                        elem = kmalloc(desc->elem_size,
+                                                       GFP_KERNEL);
+                                        err = -ENOMEM;
+                                        if (!elem)
+                                                goto out;
+                                }
+                                if (encode) {
+                                        if (!copied) {
+                                                err = desc->xcode(desc, elem);
+                                                if (err)
+                                                        goto out;
+                                        }
+                                        memcpy(c, elem + copied, l);
+                                        copied += l;
+                                        if (copied == desc->elem_size)
+                                                copied = 0;
+                                } else {
+                                        memcpy(elem + copied, c, l);
+                                        copied += l;
+                                        if (copied == desc->elem_size) {
+                                                err = desc->xcode(desc, elem);
+                                                if (err)
+                                                        goto out;
+                                                copied = 0;
+                                        }
+                                }
+                        }
+                        if (avail_here) {
+                                kunmap(*ppages);
+                                ppages++;
+                                c = kmap(*ppages);
+                        }
+
+                        avail_page = min(avail_here,
+                                 (unsigned int) PAGE_CACHE_SIZE);
+                }
+                base = buf->page_len;  /* align to start of tail */
+        }
+
+        /* process tail */
+        base -= buf->page_len;
+        if (todo) {
+                c = buf->tail->iov_base + base;
+                if (copied) {
+                        unsigned int l = desc->elem_size - copied;
+
+                        if (encode)
+                                memcpy(c, elem + copied, l);
+                        else {
+                                memcpy(elem + copied, c, l);
+                                err = desc->xcode(desc, elem);
+                                if (err)
+                                        goto out;
+                        }
+                        todo -= l;
+                        c += l;
+                }
+                while (todo) {
+                        err = desc->xcode(desc, c);
+                        if (err)
+                                goto out;
+                        c += desc->elem_size;
+                        todo -= desc->elem_size;
+                }
+        }
+        err = 0;
+
+out:
+        if (elem)
+                kfree(elem);
+        if (ppages)
+                kunmap(*ppages);
+        return err;
+}
+
+int
+xdr_decode_array2(struct xdr_buf *buf, unsigned int base,
+                  struct xdr_array2_desc *desc)
+{
+        if (base >= buf->len)
+                return -EINVAL;
+
+        return xdr_xcode_array2(buf, base, desc, 0);
+}
+
+int
+xdr_encode_array2(struct xdr_buf *buf, unsigned int base,
+                  struct xdr_array2_desc *desc)
+{
+        if ((unsigned long) base + 4 + desc->array_len * desc->elem_size >
+            buf->head->iov_len + buf->page_len + buf->tail->iov_len)
+                return -EINVAL;
+
+        return xdr_xcode_array2(buf, base, desc, 1);
+}
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index c74a6bb94074..269f217918a3 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -569,8 +569,11 @@ void xprt_connect(struct rpc_task *task)
                 if (xprt->sock != NULL)
                         schedule_delayed_work(&xprt->sock_connect,
                                         RPC_REESTABLISH_TIMEOUT);
-                else
+                else {
                         schedule_work(&xprt->sock_connect);
+                        if (!RPC_IS_ASYNC(task))
+                                flush_scheduled_work();
+                }
         }
         return;
  out_write:
@@ -725,7 +728,8 @@ csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
                 goto no_checksum;
 
         desc.csum = csum_partial(skb->data, desc.offset, skb->csum);
-        xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_and_csum_bits);
+        if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_and_csum_bits) < 0)
+                return -1;
         if (desc.offset != skb->len) {
                 unsigned int csum2;
                 csum2 = skb_checksum(skb, desc.offset, skb->len - desc.offset, 0);
@@ -737,7 +741,8 @@ csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
                 return -1;
         return 0;
 no_checksum:
-        xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_bits);
+        if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_bits) < 0)
+                return -1;
         if (desc.count)
                 return -1;
         return 0;
@@ -821,10 +826,15 @@ tcp_copy_data(skb_reader_t *desc, void *p, size_t len)
 {
         if (len > desc->count)
                 len = desc->count;
-        if (skb_copy_bits(desc->skb, desc->offset, p, len))
+        if (skb_copy_bits(desc->skb, desc->offset, p, len)) {
+                dprintk("RPC:      failed to copy %zu bytes from skb. %zu bytes remain\n",
+                                len, desc->count);
                 return 0;
+        }
         desc->offset += len;
         desc->count -= len;
+        dprintk("RPC:      copied %zu bytes from skb. %zu bytes remain\n",
+                        len, desc->count);
         return len;
 }
 
@@ -863,6 +873,8 @@ tcp_read_fraghdr(struct rpc_xprt *xprt, skb_reader_t *desc)
 static void
 tcp_check_recm(struct rpc_xprt *xprt)
 {
+        dprintk("RPC:      xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u, tcp_flags = %lx\n",
+                        xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen, xprt->tcp_flags);
         if (xprt->tcp_offset == xprt->tcp_reclen) {
                 xprt->tcp_flags |= XPRT_COPY_RECM;
                 xprt->tcp_offset = 0;
@@ -907,6 +919,7 @@ tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc)
         struct rpc_rqst *req;
         struct xdr_buf *rcvbuf;
         size_t len;
+        ssize_t r;
 
         /* Find and lock the request corresponding to this xid */
         spin_lock(&xprt->sock_lock);
@@ -927,15 +940,40 @@ tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc)
                 len = xprt->tcp_reclen - xprt->tcp_offset;
                 memcpy(&my_desc, desc, sizeof(my_desc));
                 my_desc.count = len;
-                xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
+                r = xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
                                           &my_desc, tcp_copy_data);
-                desc->count -= len;
-                desc->offset += len;
+                desc->count -= r;
+                desc->offset += r;
         } else
-                xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
+                r = xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
                                           desc, tcp_copy_data);
-        xprt->tcp_copied += len;
-        xprt->tcp_offset += len;
+
+        if (r > 0) {
+                xprt->tcp_copied += r;
+                xprt->tcp_offset += r;
+        }
+        if (r != len) {
+                /* Error when copying to the receive buffer,
+                 * usually because we weren't able to allocate
+                 * additional buffer pages. All we can do now
+                 * is turn off XPRT_COPY_DATA, so the request
+                 * will not receive any additional updates,
+                 * and time out.
+                 * Any remaining data from this record will
+                 * be discarded.
+                 */
+                xprt->tcp_flags &= ~XPRT_COPY_DATA;
+                dprintk("RPC:      XID %08x truncated request\n",
+                                ntohl(xprt->tcp_xid));
+                dprintk("RPC:      xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
+                                xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen);
+                goto out;
+        }
+
+        dprintk("RPC:      XID %08x read %Zd bytes\n",
+                        ntohl(xprt->tcp_xid), r);
+        dprintk("RPC:      xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
+                        xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen);
 
         if (xprt->tcp_copied == req->rq_private_buf.buflen)
                 xprt->tcp_flags &= ~XPRT_COPY_DATA;
@@ -944,6 +982,7 @@ tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc)
                         xprt->tcp_flags &= ~XPRT_COPY_DATA;
         }
 
+out:
         if (!(xprt->tcp_flags & XPRT_COPY_DATA)) {
                 dprintk("RPC: %4d received reply complete\n",
                                 req->rq_task->tk_pid);
@@ -967,6 +1006,7 @@ tcp_read_discard(struct rpc_xprt *xprt, skb_reader_t *desc)
         desc->count -= len;
         desc->offset += len;
         xprt->tcp_offset += len;
+        dprintk("RPC:      discarded %Zu bytes\n", len);
         tcp_check_recm(xprt);
 }
 
@@ -1064,8 +1104,7 @@ tcp_state_change(struct sock *sk)
         case TCP_SYN_RECV:
                 break;
         default:
-                if (xprt_test_and_clear_connected(xprt))
-                        rpc_wake_up_status(&xprt->pending, -ENOTCONN);
+                xprt_disconnect(xprt);
                 break;
         }
  out:
@@ -1203,6 +1242,8 @@ xprt_transmit(struct rpc_task *task)
                         list_add_tail(&req->rq_list, &xprt->recv);
                         spin_unlock_bh(&xprt->sock_lock);
                         xprt_reset_majortimeo(req);
+                        /* Turn off autodisconnect */
+                        del_singleshot_timer_sync(&xprt->timer);
                 }
         } else if (!req->rq_bytes_sent)
                 return;
@@ -1333,8 +1374,6 @@ xprt_reserve(struct rpc_task *task)
                 spin_lock(&xprt->xprt_lock);
                 do_xprt_reserve(task);
                 spin_unlock(&xprt->xprt_lock);
-                if (task->tk_rqstp)
-                        del_timer_sync(&xprt->timer);
         }
 }
 
@@ -1649,6 +1688,10 @@ xprt_shutdown(struct rpc_xprt *xprt)
         rpc_wake_up(&xprt->backlog);
         wake_up(&xprt->cong_wait);
         del_timer_sync(&xprt->timer);
+
+        /* synchronously wait for connect worker to finish */
+        cancel_delayed_work(&xprt->sock_connect);
+        flush_scheduled_work();
 }
 
 /*
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 2a24b243b841..04bec047fa9a 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -29,6 +29,10 @@
  *      2000-11-14      Henner Eisen    Closing datalink from NETDEV_GOING_DOWN
  *      2002-10-06      Arnaldo C. Melo Get rid of cli/sti, move proc stuff to
  *                                      x25_proc.c, using seq_file
+ *      2005-04-02      Shaun Pereira   Selective sub address matching
+ *                                      with call user data
+ *      2005-04-15      Shaun Pereira   Fast select with no restriction on
+ *                                      response
  */
 
 #include <linux/config.h>
@@ -219,7 +223,8 @@ static void x25_insert_socket(struct sock *sk)
  *      Note: if a listening socket has cud set it must only get calls
  *      with matching cud.
  */
-static struct sock *x25_find_listener(struct x25_address *addr, struct x25_calluserdata *calluserdata)
+static struct sock *x25_find_listener(struct x25_address *addr,
+                                        struct sk_buff *skb)
 {
         struct sock *s;
         struct sock *next_best;
@@ -230,22 +235,23 @@ static struct sock *x25_find_listener(struct x25_address *addr, struct x25_callu
 
         sk_for_each(s, node, &x25_list)
                 if ((!strcmp(addr->x25_addr,
-                             x25_sk(s)->source_addr.x25_addr) ||
-                     !strcmp(addr->x25_addr,
-                             null_x25_address.x25_addr)) &&
-                     s->sk_state == TCP_LISTEN) {
-
+                        x25_sk(s)->source_addr.x25_addr) ||
+                                !strcmp(addr->x25_addr,
+                                        null_x25_address.x25_addr)) &&
+                                        s->sk_state == TCP_LISTEN) {
                         /*
                          * Found a listening socket, now check the incoming
                          * call user data vs this sockets call user data
                          */
-                        if (x25_check_calluserdata(&x25_sk(s)->calluserdata, calluserdata)) {
-                                sock_hold(s);
-                                goto found;
-                        }
-                        if (x25_sk(s)->calluserdata.cudlength == 0) {
+                        if(skb->len > 0 && x25_sk(s)->cudmatchlength > 0) {
+                                if((memcmp(x25_sk(s)->calluserdata.cuddata,
+                                        skb->data,
+                                        x25_sk(s)->cudmatchlength)) == 0) {
+                                        sock_hold(s);
+                                        goto found;
+                                 }
+                        } else
                                 next_best = s;
-                        }
                 }
         if (next_best) {
                 s = next_best;
@@ -497,6 +503,9 @@ static int x25_create(struct socket *sock, int protocol)
         x25->t23   = sysctl_x25_clear_request_timeout;
         x25->t2    = sysctl_x25_ack_holdback_timeout;
         x25->state = X25_STATE_0;
+        x25->cudmatchlength = 0;
+        x25->accptapprv = X25_DENY_ACCPT_APPRV;         /* normally no cud  */
+                                                        /* on call accept   */
 
         x25->facilities.winsize_in  = X25_DEFAULT_WINDOW_SIZE;
         x25->facilities.winsize_out = X25_DEFAULT_WINDOW_SIZE;
@@ -545,6 +554,8 @@ static struct sock *x25_make_new(struct sock *osk)
         x25->t2         = ox25->t2;
         x25->facilities = ox25->facilities;
         x25->qbitincl   = ox25->qbitincl;
+        x25->cudmatchlength = ox25->cudmatchlength;
+        x25->accptapprv = ox25->accptapprv;
 
         x25_init_timers(sk);
 out:
@@ -822,7 +833,6 @@ int x25_rx_call_request(struct sk_buff *skb, struct x25_neigh *nb,
         struct x25_sock *makex25;
         struct x25_address source_addr, dest_addr;
         struct x25_facilities facilities;
-        struct x25_calluserdata calluserdata;
         int len, rc;
 
         /*
@@ -845,19 +855,10 @@ int x25_rx_call_request(struct sk_buff *skb, struct x25_neigh *nb,
         skb_pull(skb,len);
 
         /*
-         *      Incoming Call User Data.
-         */
-        if (skb->len >= 0) {
-                memcpy(calluserdata.cuddata, skb->data, skb->len);
-                calluserdata.cudlength = skb->len;
-        }
-
-        skb_push(skb,len);
-
-        /*
          *      Find a listener for the particular address/cud pair.
          */
-        sk = x25_find_listener(&source_addr,&calluserdata);
+        sk = x25_find_listener(&source_addr,skb);
+        skb_push(skb,len);
 
         /*
          *      We can't accept the Call Request.
@@ -900,11 +901,23 @@ int x25_rx_call_request(struct sk_buff *skb, struct x25_neigh *nb,
         makex25->neighbour     = nb;
         makex25->facilities    = facilities;
         makex25->vc_facil_mask = x25_sk(sk)->vc_facil_mask;
-        makex25->calluserdata  = calluserdata;
-
-        x25_write_internal(make, X25_CALL_ACCEPTED);
+        /* ensure no reverse facil on accept */
+        makex25->vc_facil_mask &= ~X25_MASK_REVERSE;
+        makex25->cudmatchlength = x25_sk(sk)->cudmatchlength;
+
+        /* Normally all calls are accepted immediatly */
+        if(makex25->accptapprv & X25_DENY_ACCPT_APPRV) {
+                x25_write_internal(make, X25_CALL_ACCEPTED);
+                makex25->state = X25_STATE_3;
+        }
 
-        makex25->state = X25_STATE_3;
+        /*
+         *      Incoming Call User Data.
+         */
+        if (skb->len >= 0) {
+                memcpy(makex25->calluserdata.cuddata, skb->data, skb->len);
+                makex25->calluserdata.cudlength = skb->len;
+        }
 
         sk->sk_ack_backlog++;
 
@@ -1288,7 +1301,8 @@ static int x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
                         if (facilities.throughput < 0x03 ||
                             facilities.throughput > 0xDD)
                                 break;
-                        if (facilities.reverse && facilities.reverse != 1)
+                        if (facilities.reverse &&
+                                (facilities.reverse | 0x81)!= 0x81)
                                 break;
                         x25->facilities = facilities;
                         rc = 0;
@@ -1325,6 +1339,44 @@ static int x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
                         break;
                 }
 
+                case SIOCX25SCUDMATCHLEN: {
+                        struct x25_subaddr sub_addr;
+                        rc = -EINVAL;
+                        if(sk->sk_state != TCP_CLOSE)
+                                break;
+                        rc = -EFAULT;
+                        if (copy_from_user(&sub_addr, argp,
+                                        sizeof(sub_addr)))
+                                break;
+                        rc = -EINVAL;
+                        if(sub_addr.cudmatchlength > X25_MAX_CUD_LEN)
+                                break;
+                        x25->cudmatchlength = sub_addr.cudmatchlength;
+                        rc = 0;
+                        break;
+                }
+
+                case SIOCX25CALLACCPTAPPRV: {
+                        rc = -EINVAL;
+                        if (sk->sk_state != TCP_CLOSE)
+                                break;
+                        x25->accptapprv = X25_ALLOW_ACCPT_APPRV;
+                        rc = 0;
+                        break;
+                }
+
+                case SIOCX25SENDCALLACCPT:  {
+                        rc = -EINVAL;
+                        if (sk->sk_state != TCP_ESTABLISHED)
+                                break;
+                        if (x25->accptapprv)    /* must call accptapprv above */
+                                break;
+                        x25_write_internal(sk, X25_CALL_ACCEPTED);
+                        x25->state = X25_STATE_3;
+                        rc = 0;
+                        break;
+                }
+
                 default:
                         rc = dev_ioctl(cmd, argp);
                         break;
diff --git a/net/x25/x25_facilities.c b/net/x25/x25_facilities.c
index a21bdb95f9a8..54278b962f4c 100644
--- a/net/x25/x25_facilities.c
+++ b/net/x25/x25_facilities.c
@@ -17,6 +17,8 @@
  *      X.25 001        Split from x25_subr.c
  *      mar/20/00       Daniela Squassoni Disabling/enabling of facilities 
  *                                        negotiation.
+ *      apr/14/05       Shaun Pereira - Allow fast select with no restriction
+ *                                      on response.
  */
 
 #include <linux/kernel.h>
@@ -43,9 +45,31 @@ int x25_parse_facilities(struct sk_buff *skb,
                 case X25_FAC_CLASS_A:
                         switch (*p) {
                         case X25_FAC_REVERSE:
-                                facilities->reverse = p[1] & 0x01;
-                                *vc_fac_mask |= X25_MASK_REVERSE;
-                                break;
+                                if((p[1] & 0x81) == 0x81) {
+                                        facilities->reverse = p[1] & 0x81;
+                                        *vc_fac_mask |= X25_MASK_REVERSE;
+                                        break;
+                                }
+
+                                if((p[1] & 0x01) == 0x01) {
+                                        facilities->reverse = p[1] & 0x01;
+                                        *vc_fac_mask |= X25_MASK_REVERSE;
+                                        break;
+                                }
+
+                                if((p[1] & 0x80) == 0x80) {
+                                        facilities->reverse = p[1] & 0x80;
+                                        *vc_fac_mask |= X25_MASK_REVERSE;
+                                        break;
+                                }
+
+                                if(p[1] == 0x00) {
+                                        facilities->reverse
+                                                = X25_DEFAULT_REVERSE;
+                                        *vc_fac_mask |= X25_MASK_REVERSE;
+                                        break;
+                                }
+
                         case X25_FAC_THROUGHPUT:
                                 facilities->throughput = p[1];
                                 *vc_fac_mask |= X25_MASK_THROUGHPUT;
@@ -122,7 +146,7 @@ int x25_create_facilities(unsigned char *buffer,
 
         if (facilities->reverse && (facil_mask & X25_MASK_REVERSE)) {
                 *p++ = X25_FAC_REVERSE;
-                *p++ = !!facilities->reverse;
+                *p++ = facilities->reverse;
         }
 
         if (facilities->throughput && (facil_mask & X25_MASK_THROUGHPUT)) {
@@ -171,7 +195,7 @@ int x25_negotiate_facilities(struct sk_buff *skb, struct sock *sk,
         /*
          *      They want reverse charging, we won't accept it.
          */
-        if (theirs.reverse && ours->reverse) {
+        if ((theirs.reverse & 0x01 ) && (ours->reverse & 0x01)) {
                 SOCK_DEBUG(sk, "X.25: rejecting reverse charging request");
                 return -1;
         }
diff --git a/net/x25/x25_subr.c b/net/x25/x25_subr.c
index 183fea3bba67..7fd872ad0c20 100644
--- a/net/x25/x25_subr.c
+++ b/net/x25/x25_subr.c
@@ -19,6 +19,8 @@
  *      mar/20/00       Daniela Squassoni Disabling/enabling of facilities
  *                                        negotiation.
  *      jun/24/01       Arnaldo C. Melo   use skb_queue_purge, cleanups
+ *      apr/04/15       Shaun Pereira           Fast select with no
+ *                                              restriction on response.
  */
 
 #include <linux/kernel.h>
@@ -127,8 +129,12 @@ void x25_write_internal(struct sock *sk, int frametype)
                         len += 1 + X25_ADDR_LEN + X25_MAX_FAC_LEN +
                                X25_MAX_CUD_LEN;
                         break;
-                case X25_CALL_ACCEPTED:
-                        len += 1 + X25_MAX_FAC_LEN + X25_MAX_CUD_LEN;
+                case X25_CALL_ACCEPTED: /* fast sel with no restr on resp */
+                        if(x25->facilities.reverse & 0x80) {
+                                len += 1 + X25_MAX_FAC_LEN + X25_MAX_CUD_LEN;
+                        } else {
+                                len += 1 + X25_MAX_FAC_LEN;
+                        }
                         break;
                 case X25_CLEAR_REQUEST:
                 case X25_RESET_REQUEST:
@@ -203,9 +209,16 @@ void x25_write_internal(struct sock *sk, int frametype)
                                                         x25->vc_facil_mask);
                         dptr    = skb_put(skb, len);
                         memcpy(dptr, facilities, len);
-                        dptr = skb_put(skb, x25->calluserdata.cudlength);
-                        memcpy(dptr, x25->calluserdata.cuddata,
-                               x25->calluserdata.cudlength);
+
+                        /* fast select with no restriction on response
+                                allows call user data. Userland must
+                                ensure it is ours and not theirs */
+                        if(x25->facilities.reverse & 0x80) {
+                                dptr = skb_put(skb,
+                                        x25->calluserdata.cudlength);
+                                memcpy(dptr, x25->calluserdata.cuddata,
+                                       x25->calluserdata.cudlength);
+                        }
                         x25->calluserdata.cudlength = 0;
                         break;
 
@@ -354,21 +367,3 @@ void x25_check_rbuf(struct sock *sk)
         }
 }
 
-/*
- * Compare 2 calluserdata structures, used to find correct listening sockets
- * when call user data is used.
- */
-int x25_check_calluserdata(struct x25_calluserdata *ours, struct x25_calluserdata *theirs)
-{
-        int i;
-        if (ours->cudlength != theirs->cudlength)
-                return 0;
-
-        for (i=0;i<ours->cudlength;i++) {
-                if (ours->cuddata[i] != theirs->cuddata[i]) {
-                        return 0;
-                }
-        }
-        return 1;
-}
-
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index d07f5ce31824..d65ed8684fc1 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -118,7 +118,6 @@ retry:
         xfrm_policy_put_afinfo(afinfo);
         return type;
 }
-EXPORT_SYMBOL(xfrm_get_type);
 
 int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl, 
                     unsigned short family)
@@ -216,8 +215,8 @@ out:
 
 expired:
         read_unlock(&xp->lock);
-        km_policy_expired(xp, dir, 1);
-        xfrm_policy_delete(xp, dir);
+        if (!xfrm_policy_delete(xp, dir))
+                km_policy_expired(xp, dir, 1);
         xfrm_pol_put(xp);
 }
 
@@ -555,7 +554,7 @@ static struct xfrm_policy *__xfrm_policy_unlink(struct xfrm_policy *pol,
         return NULL;
 }
 
-void xfrm_policy_delete(struct xfrm_policy *pol, int dir)
+int xfrm_policy_delete(struct xfrm_policy *pol, int dir)
 {
         write_lock_bh(&xfrm_policy_lock);
         pol = __xfrm_policy_unlink(pol, dir);
@@ -564,7 +563,9 @@ void xfrm_policy_delete(struct xfrm_policy *pol, int dir)
                 if (dir < XFRM_POLICY_MAX)
                         atomic_inc(&flow_cache_genid);
                 xfrm_policy_kill(pol);
+                return 0;
         }
+        return -ENOENT;
 }
 
 int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol)
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index d11747c2a763..9d206c282cf1 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -50,7 +50,7 @@ static DEFINE_SPINLOCK(xfrm_state_gc_lock);
 
 static int xfrm_state_gc_flush_bundles;
 
-static void __xfrm_state_delete(struct xfrm_state *x);
+static int __xfrm_state_delete(struct xfrm_state *x);
 
 static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned short family);
 static void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo);
@@ -154,6 +154,7 @@ static void xfrm_timer_handler(unsigned long data)
                         next = tmo;
         }
 
+        x->km.dying = warn;
         if (warn)
                 km_state_expired(x, 0);
 resched:
@@ -169,9 +170,8 @@ expired:
                 next = 2;
                 goto resched;
         }
-        if (x->id.spi != 0)
+        if (!__xfrm_state_delete(x) && x->id.spi)
                 km_state_expired(x, 1);
-        __xfrm_state_delete(x);
 
 out:
         spin_unlock(&x->lock);
@@ -215,8 +215,10 @@ void __xfrm_state_destroy(struct xfrm_state *x)
 }
 EXPORT_SYMBOL(__xfrm_state_destroy);
 
-static void __xfrm_state_delete(struct xfrm_state *x)
+static int __xfrm_state_delete(struct xfrm_state *x)
 {
+        int err = -ESRCH;
+
         if (x->km.state != XFRM_STATE_DEAD) {
                 x->km.state = XFRM_STATE_DEAD;
                 spin_lock(&xfrm_state_lock);
@@ -245,14 +247,21 @@ static void __xfrm_state_delete(struct xfrm_state *x)
                  * is what we are dropping here.
                  */
                 atomic_dec(&x->refcnt);
+                err = 0;
         }
+
+        return err;
 }
 
-void xfrm_state_delete(struct xfrm_state *x)
+int xfrm_state_delete(struct xfrm_state *x)
 {
+        int err;
+
         spin_lock_bh(&x->lock);
-        __xfrm_state_delete(x);
+        err = __xfrm_state_delete(x);
         spin_unlock_bh(&x->lock);
+
+        return err;
 }
 EXPORT_SYMBOL(xfrm_state_delete);
 
@@ -557,16 +566,18 @@ int xfrm_state_check_expire(struct xfrm_state *x)
 
         if (x->curlft.bytes >= x->lft.hard_byte_limit ||
             x->curlft.packets >= x->lft.hard_packet_limit) {
-                km_state_expired(x, 1);
-                if (!mod_timer(&x->timer, jiffies + XFRM_ACQ_EXPIRES*HZ))
+                x->km.state = XFRM_STATE_EXPIRED;
+                if (!mod_timer(&x->timer, jiffies))
                         xfrm_state_hold(x);
                 return -EINVAL;
         }
 
         if (!x->km.dying &&
             (x->curlft.bytes >= x->lft.soft_byte_limit ||
-             x->curlft.packets >= x->lft.soft_packet_limit))
+             x->curlft.packets >= x->lft.soft_packet_limit)) {
+                x->km.dying = 1;
                 km_state_expired(x, 0);
+        }
         return 0;
 }
 EXPORT_SYMBOL(xfrm_state_check_expire);
@@ -796,34 +807,56 @@ EXPORT_SYMBOL(xfrm_replay_advance);
 static struct list_head xfrm_km_list = LIST_HEAD_INIT(xfrm_km_list);
 static DEFINE_RWLOCK(xfrm_km_lock);
 
-static void km_state_expired(struct xfrm_state *x, int hard)
+void km_policy_notify(struct xfrm_policy *xp, int dir, struct km_event *c)
 {
         struct xfrm_mgr *km;
 
-        if (hard)
-                x->km.state = XFRM_STATE_EXPIRED;
-        else
-                x->km.dying = 1;
+        read_lock(&xfrm_km_lock);
+        list_for_each_entry(km, &xfrm_km_list, list)
+                if (km->notify_policy)
+                        km->notify_policy(xp, dir, c);
+        read_unlock(&xfrm_km_lock);
+}
 
+void km_state_notify(struct xfrm_state *x, struct km_event *c)
+{
+        struct xfrm_mgr *km;
         read_lock(&xfrm_km_lock);
         list_for_each_entry(km, &xfrm_km_list, list)
-                km->notify(x, hard);
+                if (km->notify)
+                        km->notify(x, c);
         read_unlock(&xfrm_km_lock);
+}
+
+EXPORT_SYMBOL(km_policy_notify);
+EXPORT_SYMBOL(km_state_notify);
+
+static void km_state_expired(struct xfrm_state *x, int hard)
+{
+        struct km_event c;
+
+        c.data.hard = hard;
+        c.event = XFRM_MSG_EXPIRE;
+        km_state_notify(x, &c);
 
         if (hard)
                 wake_up(&km_waitq);
 }
 
+/*
+ * We send to all registered managers regardless of failure
+ * We are happy with one success
+*/
 static int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol)
 {
-        int err = -EINVAL;
+        int err = -EINVAL, acqret;
         struct xfrm_mgr *km;
 
         read_lock(&xfrm_km_lock);
         list_for_each_entry(km, &xfrm_km_list, list) {
-                err = km->acquire(x, t, pol, XFRM_POLICY_OUT);
-                if (!err)
-                        break;
+                acqret = km->acquire(x, t, pol, XFRM_POLICY_OUT);
+                if (!acqret)
+                        err = acqret;
         }
         read_unlock(&xfrm_km_lock);
         return err;
@@ -848,13 +881,11 @@ EXPORT_SYMBOL(km_new_mapping);
 
 void km_policy_expired(struct xfrm_policy *pol, int dir, int hard)
 {
-        struct xfrm_mgr *km;
+        struct km_event c;
 
-        read_lock(&xfrm_km_lock);
-        list_for_each_entry(km, &xfrm_km_list, list)
-                if (km->notify_policy)
-                        km->notify_policy(pol, dir, hard);
-        read_unlock(&xfrm_km_lock);
+        c.data.hard = hard;
+        c.event = XFRM_MSG_POLEXPIRE;
+        km_policy_notify(pol, dir, &c);
 
         if (hard)
                 wake_up(&km_waitq);
@@ -1024,6 +1055,43 @@ int xfrm_state_mtu(struct xfrm_state *x, int mtu)
 }
 
 EXPORT_SYMBOL(xfrm_state_mtu);
+
+int xfrm_init_state(struct xfrm_state *x)
+{
+        struct xfrm_state_afinfo *afinfo;
+        int family = x->props.family;
+        int err;
+
+        err = -EAFNOSUPPORT;
+        afinfo = xfrm_state_get_afinfo(family);
+        if (!afinfo)
+                goto error;
+
+        err = 0;
+        if (afinfo->init_flags)
+                err = afinfo->init_flags(x);
+
+        xfrm_state_put_afinfo(afinfo);
+
+        if (err)
+                goto error;
+
+        err = -EPROTONOSUPPORT;
+        x->type = xfrm_get_type(x->id.proto, family);
+        if (x->type == NULL)
+                goto error;
+
+        err = x->type->init_state(x);
+        if (err)
+                goto error;
+
+        x->km.state = XFRM_STATE_VALID;
+
+error:
+        return err;
+}
+
+EXPORT_SYMBOL(xfrm_init_state);
  
 void __init xfrm_state_init(void)
 {
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 97509011c274..ecade4893a13 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -249,17 +249,10 @@ static struct xfrm_state *xfrm_state_construct(struct xfrm_usersa_info *p,
         if ((err = attach_encap_tmpl(&x->encap, xfrma[XFRMA_ENCAP-1])))
                 goto error;
 
-        err = -ENOENT;
-        x->type = xfrm_get_type(x->id.proto, x->props.family);
-        if (x->type == NULL)
-                goto error;
-
-        err = x->type->init_state(x, NULL);
+        err = xfrm_init_state(x);
         if (err)
                 goto error;
 
-        x->curlft.add_time = (unsigned long) xtime.tv_sec;
-        x->km.state = XFRM_STATE_VALID;
         x->km.seq = p->seq;
 
         return x;
@@ -277,6 +270,7 @@ static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
         struct xfrm_usersa_info *p = NLMSG_DATA(nlh);
         struct xfrm_state *x;
         int err;
+        struct km_event c;
 
         err = verify_newsa_info(p, (struct rtattr **) xfrma);
         if (err)
@@ -286,6 +280,7 @@ static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
         if (!x)
                 return err;
 
+        xfrm_state_hold(x);
         if (nlh->nlmsg_type == XFRM_MSG_NEWSA)
                 err = xfrm_state_add(x);
         else
@@ -294,14 +289,24 @@ static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
         if (err < 0) {
                 x->km.state = XFRM_STATE_DEAD;
                 xfrm_state_put(x);
+                goto out;
         }
 
+        c.seq = nlh->nlmsg_seq;
+        c.pid = nlh->nlmsg_pid;
+        c.event = nlh->nlmsg_type;
+
+        km_state_notify(x, &c);
+out:
+        xfrm_state_put(x);
         return err;
 }
 
 static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
 {
         struct xfrm_state *x;
+        int err;
+        struct km_event c;
         struct xfrm_usersa_id *p = NLMSG_DATA(nlh);
 
         x = xfrm_state_lookup(&p->daddr, p->spi, p->proto, p->family);
@@ -313,10 +318,19 @@ static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
                 return -EPERM;
         }
 
-        xfrm_state_delete(x);
+        err = xfrm_state_delete(x);
+        if (err < 0) {
+                xfrm_state_put(x);
+                return err;
+        }
+
+        c.seq = nlh->nlmsg_seq;
+        c.pid = nlh->nlmsg_pid;
+        c.event = nlh->nlmsg_type;
+        km_state_notify(x, &c);
         xfrm_state_put(x);
 
-        return 0;
+        return err;
 }
 
 static void copy_to_user_state(struct xfrm_state *x, struct xfrm_usersa_info *p)
@@ -681,6 +695,7 @@ static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
 {
         struct xfrm_userpolicy_info *p = NLMSG_DATA(nlh);
         struct xfrm_policy *xp;
+        struct km_event c;
         int err;
         int excl;
 
@@ -692,6 +707,10 @@ static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
         if (!xp)
                 return err;
 
+        /* shouldnt excl be based on nlh flags??
+         * Aha! this is anti-netlink really i.e  more pfkey derived
+         * in netlink excl is a flag and you wouldnt need
+         * a type XFRM_MSG_UPDPOLICY - JHS */
         excl = nlh->nlmsg_type == XFRM_MSG_NEWPOLICY;
         err = xfrm_policy_insert(p->dir, xp, excl);
         if (err) {
@@ -699,6 +718,11 @@ static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
                 return err;
         }
 
+        c.event = nlh->nlmsg_type;
+        c.seq = nlh->nlmsg_seq;
+        c.pid = nlh->nlmsg_pid;
+        km_policy_notify(xp, p->dir, &c);
+
         xfrm_pol_put(xp);
 
         return 0;
@@ -816,6 +840,7 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
         struct xfrm_policy *xp;
         struct xfrm_userpolicy_id *p;
         int err;
+        struct km_event c;
         int delete;
 
         p = NLMSG_DATA(nlh);
@@ -843,6 +868,12 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
                                               NETLINK_CB(skb).pid,
                                               MSG_DONTWAIT);
                 }
+        } else {
+                c.data.byid = p->index;
+                c.event = nlh->nlmsg_type;
+                c.seq = nlh->nlmsg_seq;
+                c.pid = nlh->nlmsg_pid;
+                km_policy_notify(xp, p->dir, &c);
         }
 
         xfrm_pol_put(xp);
@@ -852,15 +883,28 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
 
 static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
 {
+        struct km_event c;
         struct xfrm_usersa_flush *p = NLMSG_DATA(nlh);
 
         xfrm_state_flush(p->proto);
+        c.data.proto = p->proto;
+        c.event = nlh->nlmsg_type;
+        c.seq = nlh->nlmsg_seq;
+        c.pid = nlh->nlmsg_pid;
+        km_state_notify(NULL, &c);
+
         return 0;
 }
 
 static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
 {
+        struct km_event c;
+
         xfrm_policy_flush();
+        c.event = nlh->nlmsg_type;
+        c.seq = nlh->nlmsg_seq;
+        c.pid = nlh->nlmsg_pid;
+        km_policy_notify(NULL, 0, &c);
         return 0;
 }
 
@@ -1069,15 +1113,16 @@ nlmsg_failure:
         return -1;
 }
 
-static int xfrm_send_state_notify(struct xfrm_state *x, int hard)
+static int xfrm_exp_state_notify(struct xfrm_state *x, struct km_event *c)
 {
         struct sk_buff *skb;
+        int len = NLMSG_LENGTH(sizeof(struct xfrm_user_expire));
 
-        skb = alloc_skb(sizeof(struct xfrm_user_expire) + 16, GFP_ATOMIC);
+        skb = alloc_skb(len, GFP_ATOMIC);
         if (skb == NULL)
                 return -ENOMEM;
 
-        if (build_expire(skb, x, hard) < 0)
+        if (build_expire(skb, x, c->data.hard) < 0)
                 BUG();
 
         NETLINK_CB(skb).dst_groups = XFRMGRP_EXPIRE;
@@ -1085,6 +1130,131 @@ static int xfrm_send_state_notify(struct xfrm_state *x, int hard)
         return netlink_broadcast(xfrm_nl, skb, 0, XFRMGRP_EXPIRE, GFP_ATOMIC);
 }
 
+static int xfrm_notify_sa_flush(struct km_event *c)
+{
+        struct xfrm_usersa_flush *p;
+        struct nlmsghdr *nlh;
+        struct sk_buff *skb;
+        unsigned char *b;
+        int len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_flush));
+
+        skb = alloc_skb(len, GFP_ATOMIC);
+        if (skb == NULL)
+                return -ENOMEM;
+        b = skb->tail;
+
+        nlh = NLMSG_PUT(skb, c->pid, c->seq,
+                        XFRM_MSG_FLUSHSA, sizeof(*p));
+        nlh->nlmsg_flags = 0;
+
+        p = NLMSG_DATA(nlh);
+        p->proto = c->data.proto;
+
+        nlh->nlmsg_len = skb->tail - b;
+
+        return netlink_broadcast(xfrm_nl, skb, 0, XFRMGRP_SA, GFP_ATOMIC);
+
+nlmsg_failure:
+        kfree_skb(skb);
+        return -1;
+}
+
+static int inline xfrm_sa_len(struct xfrm_state *x)
+{
+        int l = 0;
+        if (x->aalg)
+                l += RTA_SPACE(sizeof(*x->aalg) + (x->aalg->alg_key_len+7)/8);
+        if (x->ealg)
+                l += RTA_SPACE(sizeof(*x->ealg) + (x->ealg->alg_key_len+7)/8);
+        if (x->calg)
+                l += RTA_SPACE(sizeof(*x->calg));
+        if (x->encap)
+                l += RTA_SPACE(sizeof(*x->encap));
+
+        return l;
+}
+
+static int xfrm_notify_sa(struct xfrm_state *x, struct km_event *c)
+{
+        struct xfrm_usersa_info *p;
+        struct xfrm_usersa_id *id;
+        struct nlmsghdr *nlh;
+        struct sk_buff *skb;
+        unsigned char *b;
+        int len = xfrm_sa_len(x);
+        int headlen;
+
+        headlen = sizeof(*p);
+        if (c->event == XFRM_MSG_DELSA) {
+                len += RTA_SPACE(headlen);
+                headlen = sizeof(*id);
+        }
+        len += NLMSG_SPACE(headlen);
+
+        skb = alloc_skb(len, GFP_ATOMIC);
+        if (skb == NULL)
+                return -ENOMEM;
+        b = skb->tail;
+
+        nlh = NLMSG_PUT(skb, c->pid, c->seq, c->event, headlen);
+        nlh->nlmsg_flags = 0;
+
+        p = NLMSG_DATA(nlh);
+        if (c->event == XFRM_MSG_DELSA) {
+                id = NLMSG_DATA(nlh);
+                memcpy(&id->daddr, &x->id.daddr, sizeof(id->daddr));
+                id->spi = x->id.spi;
+                id->family = x->props.family;
+                id->proto = x->id.proto;
+
+                p = RTA_DATA(__RTA_PUT(skb, XFRMA_SA, sizeof(*p)));
+        }
+
+        copy_to_user_state(x, p);
+
+        if (x->aalg)
+                RTA_PUT(skb, XFRMA_ALG_AUTH,
+                        sizeof(*(x->aalg))+(x->aalg->alg_key_len+7)/8, x->aalg);
+        if (x->ealg)
+                RTA_PUT(skb, XFRMA_ALG_CRYPT,
+                        sizeof(*(x->ealg))+(x->ealg->alg_key_len+7)/8, x->ealg);
+        if (x->calg)
+                RTA_PUT(skb, XFRMA_ALG_COMP, sizeof(*(x->calg)), x->calg);
+
+        if (x->encap)
+                RTA_PUT(skb, XFRMA_ENCAP, sizeof(*x->encap), x->encap);
+
+        nlh->nlmsg_len = skb->tail - b;
+
+        return netlink_broadcast(xfrm_nl, skb, 0, XFRMGRP_SA, GFP_ATOMIC);
+
+nlmsg_failure:
+rtattr_failure:
+        kfree_skb(skb);
+        return -1;
+}
+
+static int xfrm_send_state_notify(struct xfrm_state *x, struct km_event *c)
+{
+
+        switch (c->event) {
+        case XFRM_MSG_EXPIRE:
+                return xfrm_exp_state_notify(x, c);
+        case XFRM_MSG_DELSA:
+        case XFRM_MSG_UPDSA:
+        case XFRM_MSG_NEWSA:
+                return xfrm_notify_sa(x, c);
+        case XFRM_MSG_FLUSHSA:
+                return xfrm_notify_sa_flush(c);
+        default:
+                 printk("xfrm_user: Unknown SA event %d\n", c->event);
+                 break;
+        }
+
+        return 0;
+
+}
+
 static int build_acquire(struct sk_buff *skb, struct xfrm_state *x,
                          struct xfrm_tmpl *xt, struct xfrm_policy *xp,
                          int dir)
@@ -1218,7 +1388,7 @@ nlmsg_failure:
         return -1;
 }
 
-static int xfrm_send_policy_notify(struct xfrm_policy *xp, int dir, int hard)
+static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, struct km_event *c)
 {
         struct sk_buff *skb;
         size_t len;
@@ -1229,7 +1399,7 @@ static int xfrm_send_policy_notify(struct xfrm_policy *xp, int dir, int hard)
         if (skb == NULL)
                 return -ENOMEM;
 
-        if (build_polexpire(skb, xp, dir, hard) < 0)
+        if (build_polexpire(skb, xp, dir, c->data.hard) < 0)
                 BUG();
 
         NETLINK_CB(skb).dst_groups = XFRMGRP_EXPIRE;
@@ -1237,6 +1407,103 @@ static int xfrm_send_policy_notify(struct xfrm_policy *xp, int dir, int hard)
         return netlink_broadcast(xfrm_nl, skb, 0, XFRMGRP_EXPIRE, GFP_ATOMIC);
 }
 
+static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *c)
+{
+        struct xfrm_userpolicy_info *p;
+        struct xfrm_userpolicy_id *id;
+        struct nlmsghdr *nlh;
+        struct sk_buff *skb;
+        unsigned char *b;
+        int len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
+        int headlen;
+
+        headlen = sizeof(*p);
+        if (c->event == XFRM_MSG_DELPOLICY) {
+                len += RTA_SPACE(headlen);
+                headlen = sizeof(*id);
+        }
+        len += NLMSG_SPACE(headlen);
+
+        skb = alloc_skb(len, GFP_ATOMIC);
+        if (skb == NULL)
+                return -ENOMEM;
+        b = skb->tail;
+
+        nlh = NLMSG_PUT(skb, c->pid, c->seq, c->event, headlen);
+
+        p = NLMSG_DATA(nlh);
+        if (c->event == XFRM_MSG_DELPOLICY) {
+                id = NLMSG_DATA(nlh);
+                memset(id, 0, sizeof(*id));
+                id->dir = dir;
+                if (c->data.byid)
+                        id->index = xp->index;
+                else
+                        memcpy(&id->sel, &xp->selector, sizeof(id->sel));
+
+                p = RTA_DATA(__RTA_PUT(skb, XFRMA_POLICY, sizeof(*p)));
+        }
+
+        nlh->nlmsg_flags = 0;
+
+        copy_to_user_policy(xp, p, dir);
+        if (copy_to_user_tmpl(xp, skb) < 0)
+                goto nlmsg_failure;
+
+        nlh->nlmsg_len = skb->tail - b;
+
+        return netlink_broadcast(xfrm_nl, skb, 0, XFRMGRP_POLICY, GFP_ATOMIC);
+
+nlmsg_failure:
+rtattr_failure:
+        kfree_skb(skb);
+        return -1;
+}
+
+static int xfrm_notify_policy_flush(struct km_event *c)
+{
+        struct nlmsghdr *nlh;
+        struct sk_buff *skb;
+        unsigned char *b;
+        int len = NLMSG_LENGTH(0);
+
+        skb = alloc_skb(len, GFP_ATOMIC);
+        if (skb == NULL)
+                return -ENOMEM;
+        b = skb->tail;
+
+
+        nlh = NLMSG_PUT(skb, c->pid, c->seq, XFRM_MSG_FLUSHPOLICY, 0);
+
+        nlh->nlmsg_len = skb->tail - b;
+
+        return netlink_broadcast(xfrm_nl, skb, 0, XFRMGRP_POLICY, GFP_ATOMIC);
+
+nlmsg_failure:
+        kfree_skb(skb);
+        return -1;
+}
+
+static int xfrm_send_policy_notify(struct xfrm_policy *xp, int dir, struct km_event *c)
+{
+
+        switch (c->event) {
+        case XFRM_MSG_NEWPOLICY:
+        case XFRM_MSG_UPDPOLICY:
+        case XFRM_MSG_DELPOLICY:
+                return xfrm_notify_policy(xp, dir, c);
+        case XFRM_MSG_FLUSHPOLICY:
+                return xfrm_notify_policy_flush(c);
+        case XFRM_MSG_POLEXPIRE:
+                return xfrm_exp_policy_notify(xp, dir, c);
+        default:
+                printk("xfrm_user: Unknown Policy event %d\n", c->event);
+        }
+
+        return 0;
+
+}
+
 static struct xfrm_mgr netlink_mgr = {
         .id             = "netlink",
         .notify         = xfrm_send_state_notify,