12 files changed, 108 insertions, 60 deletions

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2e5f2ca3bdcd..da74b844f4ea 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2212,10 +2212,10 @@ unsigned int skb_seq_read(unsigned int consumed, const u8 **data,
                 return 0;
 
 next_skb:
-        block_limit = skb_headlen(st->cur_skb);
+        block_limit = skb_headlen(st->cur_skb) + st->stepped_offset;
 
         if (abs_offset < block_limit) {
-                *data = st->cur_skb->data + abs_offset;
+                *data = st->cur_skb->data + (abs_offset - st->stepped_offset);
                 return block_limit - abs_offset;
         }
 
@@ -2250,13 +2250,14 @@ next_skb:
                 st->frag_data = NULL;
         }
 
-        if (st->cur_skb->next) {
-                st->cur_skb = st->cur_skb->next;
+        if (st->root_skb == st->cur_skb &&
+            skb_shinfo(st->root_skb)->frag_list) {
+                st->cur_skb = skb_shinfo(st->root_skb)->frag_list;
                 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;
+        } else if (st->cur_skb->next) {
+                st->cur_skb = st->cur_skb->next;
+                st->frag_idx = 0;
                 goto next_skb;
         }
 
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 42a0f3dd3fd6..d722013c1cae 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1268,6 +1268,9 @@ __be32 __init root_nfs_parse_addr(char *name)
 static int __init ip_auto_config(void)
 {
         __be32 addr;
+#ifdef IPCONFIG_DYNAMIC
+        int retries = CONF_OPEN_RETRIES;
+#endif
 
 #ifdef CONFIG_PROC_FS
         proc_net_fops_create(&init_net, "pnp", S_IRUGO, &pnp_seq_fops);
@@ -1304,9 +1307,6 @@ static int __init ip_auto_config(void)
 #endif
             ic_first_dev->next) {
 #ifdef IPCONFIG_DYNAMIC
-
-                int retries = CONF_OPEN_RETRIES;
-
                 if (ic_dynamic() < 0) {
                         ic_close_devs();
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0cd71b84e483..76b148bcb0dc 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -524,7 +524,8 @@ static int tcp_splice_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
         struct tcp_splice_state *tss = rd_desc->arg.data;
         int ret;
 
-        ret = skb_splice_bits(skb, offset, tss->pipe, rd_desc->count, tss->flags);
+        ret = skb_splice_bits(skb, offset, tss->pipe, min(rd_desc->count, len),
+                              tss->flags);
         if (ret > 0)
                 rd_desc->count -= ret;
         return ret;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index cf5ab0581eba..b7faffe5c029 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -120,8 +120,11 @@ EXPORT_SYMBOL(sysctl_udp_wmem_min);
 atomic_t udp_memory_allocated;
 EXPORT_SYMBOL(udp_memory_allocated);
 
+#define PORTS_PER_CHAIN (65536 / UDP_HTABLE_SIZE)
+
 static int udp_lib_lport_inuse(struct net *net, __u16 num,
                                const struct udp_hslot *hslot,
+                               unsigned long *bitmap,
                                struct sock *sk,
                                int (*saddr_comp)(const struct sock *sk1,
                                                  const struct sock *sk2))
@@ -132,12 +135,17 @@ static int udp_lib_lport_inuse(struct net *net, __u16 num,
         sk_nulls_for_each(sk2, node, &hslot->head)
                 if (net_eq(sock_net(sk2), net)                  &&
                     sk2 != sk                                   &&
-                    sk2->sk_hash == num                         &&
+                    (bitmap || sk2->sk_hash == num)             &&
                     (!sk2->sk_reuse || !sk->sk_reuse)           &&
                     (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if
                         || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) &&
-                    (*saddr_comp)(sk, sk2))
-                        return 1;
+                    (*saddr_comp)(sk, sk2)) {
+                        if (bitmap)
+                                __set_bit(sk2->sk_hash / UDP_HTABLE_SIZE,
+                                          bitmap);
+                        else
+                                return 1;
+                }
         return 0;
 }
 
@@ -160,32 +168,47 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
         if (!snum) {
                 int low, high, remaining;
                 unsigned rand;
-                unsigned short first;
+                unsigned short first, last;
+                DECLARE_BITMAP(bitmap, PORTS_PER_CHAIN);
 
                 inet_get_local_port_range(&low, &high);
                 remaining = (high - low) + 1;
 
                 rand = net_random();
-                snum = first = rand % remaining + low;
-                rand |= 1;
-                for (;;) {
-                        hslot = &udptable->hash[udp_hashfn(net, snum)];
+                first = (((u64)rand * remaining) >> 32) + low;
+                /*
+                 * force rand to be an odd multiple of UDP_HTABLE_SIZE
+                 */
+                rand = (rand | 1) * UDP_HTABLE_SIZE;
+                for (last = first + UDP_HTABLE_SIZE; first != last; first++) {
+                        hslot = &udptable->hash[udp_hashfn(net, first)];
+                        bitmap_zero(bitmap, PORTS_PER_CHAIN);
                         spin_lock_bh(&hslot->lock);
-                        if (!udp_lib_lport_inuse(net, snum, hslot, sk, saddr_comp))
-                                break;
-                        spin_unlock_bh(&hslot->lock);
+                        udp_lib_lport_inuse(net, snum, hslot, bitmap, sk,
+                                            saddr_comp);
+
+                        snum = first;
+                        /*
+                         * Iterate on all possible values of snum for this hash.
+                         * Using steps of an odd multiple of UDP_HTABLE_SIZE
+                         * give us randomization and full range coverage.
+                         */
                         do {
-                                snum = snum + rand;
-                        } while (snum < low || snum > high);
-                        if (snum == first)
-                                goto fail;
+                                if (low <= snum && snum <= high &&
+                                    !test_bit(snum / UDP_HTABLE_SIZE, bitmap))
+                                        goto found;
+                                snum += rand;
+                        } while (snum != first);
+                        spin_unlock_bh(&hslot->lock);
                 }
+                goto fail;
         } else {
                 hslot = &udptable->hash[udp_hashfn(net, snum)];
                 spin_lock_bh(&hslot->lock);
-                if (udp_lib_lport_inuse(net, snum, hslot, sk, saddr_comp))
+                if (udp_lib_lport_inuse(net, snum, hslot, NULL, sk, saddr_comp))
                         goto fail_unlock;
         }
+found:
         inet_sk(sk)->num = snum;
         sk->sk_hash = snum;
         if (sk_unhashed(sk)) {
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e92ad8455c63..f9afb452249c 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4250,7 +4250,7 @@ static struct addrconf_sysctl_table
                         .procname       =       "mc_forwarding",
                         .data           =       &ipv6_devconf.mc_forwarding,
                         .maxlen         =       sizeof(int),
-                        .mode           =       0644,
+                        .mode           =       0444,
                         .proc_handler   =       proc_dointvec,
                 },
 #endif
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 4f433847d95f..36dff8807183 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -443,10 +443,10 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
         if (xfrm_decode_session_reverse(skb, &fl2, AF_INET6))
                 goto relookup_failed;
 
-        if (ip6_dst_lookup(sk, &dst2, &fl))
+        if (ip6_dst_lookup(sk, &dst2, &fl2))
                 goto relookup_failed;
 
-        err = xfrm_lookup(net, &dst2, &fl, sk, XFRM_LOOKUP_ICMP);
+        err = xfrm_lookup(net, &dst2, &fl2, sk, XFRM_LOOKUP_ICMP);
         switch (err) {
         case 0:
                 dst_release(dst);
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 936f48946e20..f171e8dbac91 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -255,6 +255,7 @@ int ip6_mc_input(struct sk_buff *skb)
          *      IPv6 multicast router mode is now supported ;)
          */
         if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding &&
+            !(ipv6_addr_type(&hdr->daddr) & IPV6_ADDR_LINKLOCAL) &&
             likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) {
                 /*
                  * Okay, we try to forward - split and duplicate
@@ -316,7 +317,6 @@ int ip6_mc_input(struct sk_buff *skb)
                 }
 
                 if (skb2) {
-                        skb2->dev = skb2->dst->dev;
                         ip6_mr_input(skb2);
                 }
         }
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 3c51b2d827f4..d19a84b79503 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -365,7 +365,9 @@ static int pim6_rcv(struct sk_buff *skb)
         pim = (struct pimreghdr *)skb_transport_header(skb);
         if (pim->type != ((PIM_VERSION << 4) | PIM_REGISTER) ||
             (pim->flags & PIM_NULL_REGISTER) ||
-            (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
+            (csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
+                             sizeof(*pim), IPPROTO_PIM,
+                             csum_partial((void *)pim, sizeof(*pim), 0)) &&
              csum_fold(skb_checksum(skb, 0, skb->len, 0))))
                 goto drop;
 
@@ -392,7 +394,7 @@ static int pim6_rcv(struct sk_buff *skb)
         skb_pull(skb, (u8 *)encap - skb->data);
         skb_reset_network_header(skb);
         skb->dev = reg_dev;
-        skb->protocol = htons(ETH_P_IP);
+        skb->protocol = htons(ETH_P_IPV6);
         skb->ip_summed = 0;
         skb->pkt_type = PACKET_HOST;
         dst_release(skb->dst);
@@ -481,6 +483,7 @@ static int mif6_delete(struct net *net, int vifi)
 {
         struct mif_device *v;
         struct net_device *dev;
+        struct inet6_dev *in6_dev;
         if (vifi < 0 || vifi >= net->ipv6.maxvif)
                 return -EADDRNOTAVAIL;
 
@@ -513,6 +516,10 @@ static int mif6_delete(struct net *net, int vifi)
 
         dev_set_allmulti(dev, -1);
 
+        in6_dev = __in6_dev_get(dev);
+        if (in6_dev)
+                in6_dev->cnf.mc_forwarding--;
+
         if (v->flags & MIFF_REGISTER)
                 unregister_netdevice(dev);
 
@@ -622,6 +629,7 @@ static int mif6_add(struct net *net, struct mif6ctl *vifc, int mrtsock)
         int vifi = vifc->mif6c_mifi;
         struct mif_device *v = &net->ipv6.vif6_table[vifi];
         struct net_device *dev;
+        struct inet6_dev *in6_dev;
         int err;
 
         /* Is vif busy ? */
@@ -662,6 +670,10 @@ static int mif6_add(struct net *net, struct mif6ctl *vifc, int mrtsock)
                 return -EINVAL;
         }
 
+        in6_dev = __in6_dev_get(dev);
+        if (in6_dev)
+                in6_dev->cnf.mc_forwarding++;
+
         /*
          *      Fill in the VIF structures
          */
@@ -838,8 +850,6 @@ static int ip6mr_cache_report(struct net *net, struct sk_buff *pkt, mifi_t mifi,
 
         skb->dst = dst_clone(pkt->dst);
         skb->ip_summed = CHECKSUM_UNNECESSARY;
-
-        skb_pull(skb, sizeof(struct ipv6hdr));
         }
 
         if (net->ipv6.mroute6_sk == NULL) {
@@ -1222,8 +1232,10 @@ static int ip6mr_sk_init(struct sock *sk)
 
         rtnl_lock();
         write_lock_bh(&mrt_lock);
-        if (likely(net->ipv6.mroute6_sk == NULL))
+        if (likely(net->ipv6.mroute6_sk == NULL)) {
                 net->ipv6.mroute6_sk = sk;
+                net->ipv6.devconf_all->mc_forwarding++;
+        }
         else
                 err = -EADDRINUSE;
         write_unlock_bh(&mrt_lock);
@@ -1242,6 +1254,7 @@ int ip6mr_sk_done(struct sock *sk)
         if (sk == net->ipv6.mroute6_sk) {
                 write_lock_bh(&mrt_lock);
                 net->ipv6.mroute6_sk = NULL;
+                net->ipv6.devconf_all->mc_forwarding--;
                 write_unlock_bh(&mrt_lock);
 
                 mroute_clean_tables(net);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c4a59824ac2c..9c574235c905 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -794,7 +794,7 @@ void ip6_route_input(struct sk_buff *skb)
                 .proto = iph->nexthdr,
         };
 
-        if (rt6_need_strict(&iph->daddr))
+        if (rt6_need_strict(&iph->daddr) && skb->dev->type != ARPHRD_PIMREG)
                 flags |= RT6_LOOKUP_F_IFACE;
 
         skb->dst = fib6_rule_lookup(net, &fl, flags, ip6_pol_route_input);
diff --git a/net/wimax/debugfs.c b/net/wimax/debugfs.c
index 87cf4430079c..94d216a46407 100644
--- a/net/wimax/debugfs.c
+++ b/net/wimax/debugfs.c
@@ -28,17 +28,6 @@
 #include "debug-levels.h"
 
 
-/* Debug framework control of debug levels */
-struct d_level D_LEVEL[] = {
-        D_SUBMODULE_DEFINE(debugfs),
-        D_SUBMODULE_DEFINE(id_table),
-        D_SUBMODULE_DEFINE(op_msg),
-        D_SUBMODULE_DEFINE(op_reset),
-        D_SUBMODULE_DEFINE(op_rfkill),
-        D_SUBMODULE_DEFINE(stack),
-};
-size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
-
 #define __debugfs_register(prefix, name, parent)                        \
 do {                                                                    \
         result = d_level_register_debugfs(prefix, name, parent);        \
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index d4da92f8981a..3869c0327882 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -516,6 +516,19 @@ void wimax_dev_rm(struct wimax_dev *wimax_dev)
 }
 EXPORT_SYMBOL_GPL(wimax_dev_rm);
 
+
+/* Debug framework control of debug levels */
+struct d_level D_LEVEL[] = {
+        D_SUBMODULE_DEFINE(debugfs),
+        D_SUBMODULE_DEFINE(id_table),
+        D_SUBMODULE_DEFINE(op_msg),
+        D_SUBMODULE_DEFINE(op_reset),
+        D_SUBMODULE_DEFINE(op_rfkill),
+        D_SUBMODULE_DEFINE(stack),
+};
+size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
+
+
 struct genl_family wimax_gnl_family = {
         .id = GENL_ID_GENERATE,
         .name = "WiMAX",
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index bc494cef2102..85c9034c59b2 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -498,6 +498,7 @@ static struct ieee80211_regdomain *country_ie_2_rd(
          * calculate the number of reg rules we will need. We will need one
          * for each channel subband */
         while (country_ie_len >= 3) {
+                int end_channel = 0;
                 struct ieee80211_country_ie_triplet *triplet =
                         (struct ieee80211_country_ie_triplet *) country_ie;
                 int cur_sub_max_channel = 0, cur_channel = 0;
@@ -509,9 +510,25 @@ static struct ieee80211_regdomain *country_ie_2_rd(
                         continue;
                 }
 
+                /* 2 GHz */
+                if (triplet->chans.first_channel <= 14)
+                        end_channel = triplet->chans.first_channel +
+                                triplet->chans.num_channels;
+                else
+                        /*
+                         * 5 GHz -- For example in country IEs if the first
+                         * channel given is 36 and the number of channels is 4
+                         * then the individual channel numbers defined for the
+                         * 5 GHz PHY by these parameters are: 36, 40, 44, and 48
+                         * and not 36, 37, 38, 39.
+                         *
+                         * See: http://tinyurl.com/11d-clarification
+                         */
+                        end_channel =  triplet->chans.first_channel +
+                                (4 * (triplet->chans.num_channels - 1));
+
                 cur_channel = triplet->chans.first_channel;
-                cur_sub_max_channel = ieee80211_channel_to_frequency(
-                        cur_channel + triplet->chans.num_channels);
+                cur_sub_max_channel = end_channel;
 
                 /* Basic sanity check */
                 if (cur_sub_max_channel < cur_channel)
@@ -590,15 +607,6 @@ static struct ieee80211_regdomain *country_ie_2_rd(
                         end_channel = triplet->chans.first_channel +
                                 triplet->chans.num_channels;
                 else
-                        /*
-                         * 5 GHz -- For example in country IEs if the first
-                         * channel given is 36 and the number of channels is 4
-                         * then the individual channel numbers defined for the
-                         * 5 GHz PHY by these parameters are: 36, 40, 44, and 48
-                         * and not 36, 37, 38, 39.
-                         *
-                         * See: http://tinyurl.com/11d-clarification
-                         */
                         end_channel =  triplet->chans.first_channel +
                                 (4 * (triplet->chans.num_channels - 1));
 
@@ -1276,7 +1284,7 @@ static void reg_country_ie_process_debug(
         if (intersected_rd) {
                 printk(KERN_DEBUG "cfg80211: We intersect both of these "
                         "and get:\n");
-                print_regdomain_info(rd);
+                print_regdomain_info(intersected_rd);
                 return;
         }
         printk(KERN_DEBUG "cfg80211: Intersection between both failed\n");