18 files changed, 175 insertions, 56 deletions

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index f35c1a378d0f..aff6a779c9c8 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -108,6 +108,7 @@ static void port_carrier_check(struct work_struct *work)
                 spin_unlock_bh(&br->lock);
         }
 done:
+        dev_put(dev);
         rtnl_unlock();
 }
 
@@ -161,7 +162,8 @@ static void del_nbp(struct net_bridge_port *p)
 
         dev_set_promiscuity(dev, -1);
 
-        cancel_delayed_work(&p->carrier_check);
+        if (cancel_delayed_work(&p->carrier_check))
+                dev_put(dev);
 
         spin_lock_bh(&br->lock);
         br_stp_disable_port(p);
@@ -444,7 +446,9 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
         spin_lock_bh(&br->lock);
         br_stp_recalculate_bridge_id(br);
         br_features_recompute(br);
-        schedule_delayed_work(&p->carrier_check, BR_PORT_DEBOUNCE);
+        if (schedule_delayed_work(&p->carrier_check, BR_PORT_DEBOUNCE))
+                dev_hold(dev);
+
         spin_unlock_bh(&br->lock);
 
         dev_set_mtu(br->dev, br_min_mtu(br));
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 8cd3e4229070..3311c4e30829 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -56,7 +56,9 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
 
         case NETDEV_CHANGE:
                 if (br->dev->flags & IFF_UP)
-                        schedule_delayed_work(&p->carrier_check, BR_PORT_DEBOUNCE);
+                        if (schedule_delayed_work(&p->carrier_check,
+                                                BR_PORT_DEBOUNCE))
+                                dev_hold(dev);
                 break;
 
         case NETDEV_FEAT_CHANGE:
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 475bcd1e4181..9b561e633b00 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -871,7 +871,7 @@ static int __init ipip_init(void)
 
         printk(banner);
 
-        if (xfrm4_tunnel_register(&ipip_handler)) {
+        if (xfrm4_tunnel_register(&ipip_handler, AF_INET)) {
                 printk(KERN_INFO "ipip init: can't register tunnel\n");
                 return -EAGAIN;
         }
@@ -893,7 +893,7 @@ static int __init ipip_init(void)
  err2:
         free_netdev(ipip_fb_tunnel_dev);
  err1:
-        xfrm4_tunnel_deregister(&ipip_handler);
+        xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
         goto out;
 }
 
@@ -913,7 +913,7 @@ static void __exit ipip_destroy_tunnels(void)
 
 static void __exit ipip_fini(void)
 {
-        if (xfrm4_tunnel_deregister(&ipip_handler))
+        if (xfrm4_tunnel_deregister(&ipip_handler, AF_INET))
                 printk(KERN_INFO "ipip close: can't deregister tunnel\n");
 
         rtnl_lock();
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index a9eb3635fff2..80f739e21824 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -80,6 +80,10 @@ static void send_reset(struct sk_buff *oldskb, int hook)
         nskb->mark = 0;
         skb_init_secmark(nskb);
 
+        skb_shinfo(nskb)->gso_size = 0;
+        skb_shinfo(nskb)->gso_segs = 0;
+        skb_shinfo(nskb)->gso_type = 0;
+
         tcph = (struct tcphdr *)((u_int32_t*)nskb->nh.iph + nskb->nh.iph->ihl);
 
         /* Swap source and dest */
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index cebe9aa918a3..dc151139b5af 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -481,7 +481,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
                 /* RFC1323: The window in SYN & SYN/ACK segments
                  * is never scaled.
                  */
-                th->window      = htons(tp->rcv_wnd);
+                th->window      = htons(min(tp->rcv_wnd, 65535U));
         } else {
                 th->window      = htons(tcp_select_window(sk));
         }
@@ -2160,7 +2160,7 @@ struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst,
         }
 
         /* RFC1323: The window in SYN & SYN/ACK segments is never scaled. */
-        th->window = htons(req->rcv_wnd);
+        th->window = htons(min(req->rcv_wnd, 65535U));
 
         TCP_SKB_CB(skb)->when = tcp_time_stamp;
         tcp_syn_build_options((__be32 *)(th + 1), dst_metric(dst, RTAX_ADVMSS), ireq->tstamp_ok,
diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c
index 8d30c48f090e..a794a8ca8b4f 100644
--- a/net/ipv4/tunnel4.c
+++ b/net/ipv4/tunnel4.c
@@ -14,9 +14,10 @@
 #include <net/xfrm.h>
 
 static struct xfrm_tunnel *tunnel4_handlers;
+static struct xfrm_tunnel *tunnel64_handlers;
 static DEFINE_MUTEX(tunnel4_mutex);
 
-int xfrm4_tunnel_register(struct xfrm_tunnel *handler)
+int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family)
 {
         struct xfrm_tunnel **pprev;
         int ret = -EEXIST;
@@ -24,7 +25,8 @@ int xfrm4_tunnel_register(struct xfrm_tunnel *handler)
 
         mutex_lock(&tunnel4_mutex);
 
-        for (pprev = &tunnel4_handlers; *pprev; pprev = &(*pprev)->next) {
+        for (pprev = (family == AF_INET) ? &tunnel4_handlers : &tunnel64_handlers;
+             *pprev; pprev = &(*pprev)->next) {
                 if ((*pprev)->priority > priority)
                         break;
                 if ((*pprev)->priority == priority)
@@ -44,14 +46,15 @@ err:
 
 EXPORT_SYMBOL(xfrm4_tunnel_register);
 
-int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler)
+int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family)
 {
         struct xfrm_tunnel **pprev;
         int ret = -ENOENT;
 
         mutex_lock(&tunnel4_mutex);
 
-        for (pprev = &tunnel4_handlers; *pprev; pprev = &(*pprev)->next) {
+        for (pprev = (family == AF_INET) ? &tunnel4_handlers : &tunnel64_handlers;
+             *pprev; pprev = &(*pprev)->next) {
                 if (*pprev == handler) {
                         *pprev = handler->next;
                         ret = 0;
@@ -86,6 +89,26 @@ drop:
         return 0;
 }
 
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+static int tunnel64_rcv(struct sk_buff *skb)
+{
+        struct xfrm_tunnel *handler;
+
+        if (!pskb_may_pull(skb, sizeof(struct iphdr)))
+                goto drop;
+
+        for (handler = tunnel64_handlers; handler; handler = handler->next)
+                if (!handler->handler(skb))
+                        return 0;
+
+        icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
+
+drop:
+        kfree_skb(skb);
+        return 0;
+}
+#endif
+
 static void tunnel4_err(struct sk_buff *skb, u32 info)
 {
         struct xfrm_tunnel *handler;
@@ -101,17 +124,36 @@ static struct net_protocol tunnel4_protocol = {
         .no_policy      =       1,
 };
 
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+static struct net_protocol tunnel64_protocol = {
+        .handler        =       tunnel64_rcv,
+        .err_handler    =       tunnel4_err,
+        .no_policy      =       1,
+};
+#endif
+
 static int __init tunnel4_init(void)
 {
         if (inet_add_protocol(&tunnel4_protocol, IPPROTO_IPIP)) {
                 printk(KERN_ERR "tunnel4 init: can't add protocol\n");
                 return -EAGAIN;
         }
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        if (inet_add_protocol(&tunnel64_protocol, IPPROTO_IPV6)) {
+                printk(KERN_ERR "tunnel64 init: can't add protocol\n");
+                inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP);
+                return -EAGAIN;
+        }
+#endif
         return 0;
 }
 
 static void __exit tunnel4_fini(void)
 {
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        if (inet_del_protocol(&tunnel64_protocol, IPPROTO_IPV6))
+                printk(KERN_ERR "tunnel64 close: can't remove protocol\n");
+#endif
         if (inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP))
                 printk(KERN_ERR "tunnel4 close: can't remove protocol\n");
 }
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index 289146bdb8b0..78e80deb7e89 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c
@@ -27,6 +27,7 @@ static int xfrm4_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32
 {
         switch (nexthdr) {
         case IPPROTO_IPIP:
+        case IPPROTO_IPV6:
                 *spi = skb->nh.iph->saddr;
                 *seq = 0;
                 return 0;
@@ -70,7 +71,8 @@ int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type)
                 if (xfrm_nr == XFRM_MAX_DEPTH)
                         goto drop;
 
-                x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, spi, iph->protocol, AF_INET);
+                x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, spi,
+                                iph->protocol != IPPROTO_IPV6 ? iph->protocol : IPPROTO_IPIP, AF_INET);
                 if (x == NULL)
                         goto drop;
 
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index e54c5494c88f..e1cab33fdad1 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -95,6 +95,7 @@ static int xfrm4_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 
         switch(iph->protocol){
                 case IPPROTO_IPIP:
+                        break;
 #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
                 case IPPROTO_IPV6:
                         break;
diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 1be6762b2d47..3eef06454da9 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -64,24 +64,45 @@ static struct xfrm_tunnel xfrm_tunnel_handler = {
         .priority       =       2,
 };
 
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+static struct xfrm_tunnel xfrm64_tunnel_handler = {
+        .handler        =       xfrm4_rcv,
+        .err_handler    =       xfrm_tunnel_err,
+        .priority       =       2,
+};
+#endif
+
 static int __init ipip_init(void)
 {
         if (xfrm_register_type(&ipip_type, AF_INET) < 0) {
                 printk(KERN_INFO "ipip init: can't add xfrm type\n");
                 return -EAGAIN;
         }
-        if (xfrm4_tunnel_register(&xfrm_tunnel_handler)) {
-                printk(KERN_INFO "ipip init: can't add xfrm handler\n");
+
+        if (xfrm4_tunnel_register(&xfrm_tunnel_handler, AF_INET)) {
+                printk(KERN_INFO "ipip init: can't add xfrm handler for AF_INET\n");
+                xfrm_unregister_type(&ipip_type, AF_INET);
+                return -EAGAIN;
+        }
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        if (xfrm4_tunnel_register(&xfrm64_tunnel_handler, AF_INET6)) {
+                printk(KERN_INFO "ipip init: can't add xfrm handler for AF_INET6\n");
+                xfrm4_tunnel_deregister(&xfrm_tunnel_handler, AF_INET);
                 xfrm_unregister_type(&ipip_type, AF_INET);
                 return -EAGAIN;
         }
+#endif
         return 0;
 }
 
 static void __exit ipip_fini(void)
 {
-        if (xfrm4_tunnel_deregister(&xfrm_tunnel_handler))
-                printk(KERN_INFO "ipip close: can't remove xfrm handler\n");
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        if (xfrm4_tunnel_deregister(&xfrm64_tunnel_handler, AF_INET6))
+                printk(KERN_INFO "ipip close: can't remove xfrm handler for AF_INET6\n");
+#endif
+        if (xfrm4_tunnel_deregister(&xfrm_tunnel_handler, AF_INET))
+                printk(KERN_INFO "ipip close: can't remove xfrm handler for AF_INET\n");
         if (xfrm_unregister_type(&ipip_type, AF_INET) < 0)
                 printk(KERN_INFO "ipip close: can't remove xfrm type\n");
 }
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index deb4101a2a81..79682efb14be 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -156,6 +156,7 @@ config INET6_XFRM_MODE_ROUTEOPTIMIZATION
 config IPV6_SIT
         tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
         depends on IPV6
+        select INET_TUNNEL
         default y
         ---help---
           Tunneling means encapsulating data of one protocol type within
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 30b16da739c2..ae6b0e7eb488 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -172,7 +172,7 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
         const struct in6_addr *saddr = &np->daddr;
         const int dif = sk->sk_bound_dev_if;
         const __portpair ports = INET_COMBINED_PORTS(inet->dport, lport);
-        const unsigned int hash = inet6_ehashfn(daddr, inet->num, saddr,
+        const unsigned int hash = inet6_ehashfn(daddr, lport, saddr,
                                                 inet->dport);
         struct inet_ehash_bucket *head = inet_ehash_bucket(hinfo, hash);
         struct sock *sk2;
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 367b74832986..662edb826899 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1128,7 +1128,7 @@ static int __init ip6_tunnel_init(void)
 {
         int  err;
 
-        if (xfrm6_tunnel_register(&ip6ip6_handler)) {
+        if (xfrm6_tunnel_register(&ip6ip6_handler, AF_INET6)) {
                 printk(KERN_ERR "ip6ip6 init: can't register tunnel\n");
                 return -EAGAIN;
         }
@@ -1147,7 +1147,7 @@ static int __init ip6_tunnel_init(void)
         }
         return 0;
 fail:
-        xfrm6_tunnel_deregister(&ip6ip6_handler);
+        xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6);
         return err;
 }
 
@@ -1171,7 +1171,7 @@ static void __exit ip6ip6_destroy_tunnels(void)
 
 static void __exit ip6_tunnel_cleanup(void)
 {
-        if (xfrm6_tunnel_deregister(&ip6ip6_handler))
+        if (xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6))
                 printk(KERN_INFO "ip6ip6 close: can't deregister tunnel\n");
 
         rtnl_lock();
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 4d3cf301e1fc..862ed7c52c38 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -216,7 +216,7 @@ static void ipip6_tunnel_uninit(struct net_device *dev)
 }
 
 
-static void ipip6_err(struct sk_buff *skb, u32 info)
+static int ipip6_err(struct sk_buff *skb, u32 info)
 {
 #ifndef I_WISH_WORLD_WERE_PERFECT
 
@@ -228,21 +228,22 @@ static void ipip6_err(struct sk_buff *skb, u32 info)
         int type = skb->h.icmph->type;
         int code = skb->h.icmph->code;
         struct ip_tunnel *t;
+        int err;
 
         switch (type) {
         default:
         case ICMP_PARAMETERPROB:
-                return;
+                return 0;
 
         case ICMP_DEST_UNREACH:
                 switch (code) {
                 case ICMP_SR_FAILED:
                 case ICMP_PORT_UNREACH:
                         /* Impossible event. */
-                        return;
+                        return 0;
                 case ICMP_FRAG_NEEDED:
                         /* Soft state for pmtu is maintained by IP core. */
-                        return;
+                        return 0;
                 default:
                         /* All others are translated to HOST_UNREACH.
                            rfc2003 contains "deep thoughts" about NET_UNREACH,
@@ -253,14 +254,18 @@ static void ipip6_err(struct sk_buff *skb, u32 info)
                 break;
         case ICMP_TIME_EXCEEDED:
                 if (code != ICMP_EXC_TTL)
-                        return;
+                        return 0;
                 break;
         }
 
+        err = -ENOENT;
+
         read_lock(&ipip6_lock);
         t = ipip6_tunnel_lookup(iph->daddr, iph->saddr);
         if (t == NULL || t->parms.iph.daddr == 0)
                 goto out;
+
+        err = 0;
         if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)
                 goto out;
 
@@ -271,7 +276,7 @@ static void ipip6_err(struct sk_buff *skb, u32 info)
         t->err_time = jiffies;
 out:
         read_unlock(&ipip6_lock);
-        return;
+        return err;
 #else
         struct iphdr *iph = (struct iphdr*)dp;
         int hlen = iph->ihl<<2;
@@ -332,7 +337,7 @@ out:
         /* Prepare fake skb to feed it to icmpv6_send */
         skb2 = skb_clone(skb, GFP_ATOMIC);
         if (skb2 == NULL)
-                return;
+                return 0;
         dst_release(skb2->dst);
         skb2->dst = NULL;
         skb_pull(skb2, skb->data - (u8*)iph6);
@@ -355,7 +360,7 @@ out:
                 }
         }
         kfree_skb(skb2);
-        return;
+        return 0;
 #endif
 }
 
@@ -791,9 +796,10 @@ static int __init ipip6_fb_tunnel_init(struct net_device *dev)
         return 0;
 }
 
-static struct net_protocol sit_protocol = {
+static struct xfrm_tunnel sit_handler = {
         .handler        =       ipip6_rcv,
         .err_handler    =       ipip6_err,
+        .priority       =       1,
 };
 
 static void __exit sit_destroy_tunnels(void)
@@ -812,7 +818,7 @@ static void __exit sit_destroy_tunnels(void)
 
 static void __exit sit_cleanup(void)
 {
-        inet_del_protocol(&sit_protocol, IPPROTO_IPV6);
+        xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
 
         rtnl_lock();
         sit_destroy_tunnels();
@@ -826,7 +832,7 @@ static int __init sit_init(void)
 
         printk(KERN_INFO "IPv6 over IPv4 tunneling driver\n");
 
-        if (inet_add_protocol(&sit_protocol, IPPROTO_IPV6) < 0) {
+        if (xfrm4_tunnel_register(&sit_handler, AF_INET6) < 0) {
                 printk(KERN_INFO "sit init: Can't add protocol\n");
                 return -EAGAIN;
         }
@@ -848,7 +854,7 @@ static int __init sit_init(void)
  err2:
         free_netdev(ipip6_fb_tunnel_dev);
  err1:
-        inet_del_protocol(&sit_protocol, IPPROTO_IPV6);
+        xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
         goto out;
 }
 
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
index 918d07dd1219..23e2809878ae 100644
--- a/net/ipv6/tunnel6.c
+++ b/net/ipv6/tunnel6.c
@@ -30,9 +30,10 @@
 #include <net/xfrm.h>
 
 static struct xfrm6_tunnel *tunnel6_handlers;
+static struct xfrm6_tunnel *tunnel46_handlers;
 static DEFINE_MUTEX(tunnel6_mutex);
 
-int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
+int xfrm6_tunnel_register(struct xfrm6_tunnel *handler, unsigned short family)
 {
         struct xfrm6_tunnel **pprev;
         int ret = -EEXIST;
@@ -40,7 +41,8 @@ int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
 
         mutex_lock(&tunnel6_mutex);
 
-        for (pprev = &tunnel6_handlers; *pprev; pprev = &(*pprev)->next) {
+        for (pprev = (family == AF_INET6) ? &tunnel6_handlers : &tunnel46_handlers;
+             *pprev; pprev = &(*pprev)->next) {
                 if ((*pprev)->priority > priority)
                         break;
                 if ((*pprev)->priority == priority)
@@ -60,14 +62,15 @@ err:
 
 EXPORT_SYMBOL(xfrm6_tunnel_register);
 
-int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler)
+int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler, unsigned short family)
 {
         struct xfrm6_tunnel **pprev;
         int ret = -ENOENT;
 
         mutex_lock(&tunnel6_mutex);
 
-        for (pprev = &tunnel6_handlers; *pprev; pprev = &(*pprev)->next) {
+        for (pprev = (family == AF_INET6) ? &tunnel6_handlers : &tunnel46_handlers;
+             *pprev; pprev = &(*pprev)->next) {
                 if (*pprev == handler) {
                         *pprev = handler->next;
                         ret = 0;
@@ -103,6 +106,25 @@ drop:
         return 0;
 }
 
+static int tunnel46_rcv(struct sk_buff **pskb)
+{
+        struct sk_buff *skb = *pskb;
+        struct xfrm6_tunnel *handler;
+
+        if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
+                goto drop;
+
+        for (handler = tunnel46_handlers; handler; handler = handler->next)
+                if (!handler->handler(skb))
+                        return 0;
+
+        icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0, skb->dev);
+
+drop:
+        kfree_skb(skb);
+        return 0;
+}
+
 static void tunnel6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
                         int type, int code, int offset, __be32 info)
 {
@@ -119,17 +141,30 @@ static struct inet6_protocol tunnel6_protocol = {
         .flags          = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
 };
 
+static struct inet6_protocol tunnel46_protocol = {
+        .handler        = tunnel46_rcv,
+        .err_handler    = tunnel6_err,
+        .flags          = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
+};
+
 static int __init tunnel6_init(void)
 {
         if (inet6_add_protocol(&tunnel6_protocol, IPPROTO_IPV6)) {
                 printk(KERN_ERR "tunnel6 init(): can't add protocol\n");
                 return -EAGAIN;
         }
+        if (inet6_add_protocol(&tunnel46_protocol, IPPROTO_IPIP)) {
+                printk(KERN_ERR "tunnel6 init(): can't add protocol\n");
+                inet6_del_protocol(&tunnel6_protocol, IPPROTO_IPV6);
+                return -EAGAIN;
+        }
         return 0;
 }
 
 static void __exit tunnel6_fini(void)
 {
+        if (inet6_del_protocol(&tunnel46_protocol, IPPROTO_IPIP))
+                printk(KERN_ERR "tunnel6 close: can't remove protocol\n");
         if (inet6_del_protocol(&tunnel6_protocol, IPPROTO_IPV6))
                 printk(KERN_ERR "tunnel6 close: can't remove protocol\n");
 }
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 25250147bdc3..31f651f95096 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -40,7 +40,8 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
                 if (xfrm_nr == XFRM_MAX_DEPTH)
                         goto drop;
 
-                x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, spi, nexthdr, AF_INET6);
+                x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, spi,
+                                nexthdr != IPPROTO_IPIP ? nexthdr : IPPROTO_IPV6, AF_INET6);
                 if (x == NULL)
                         goto drop;
                 spin_lock(&x->lock);
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index fb0228772f01..ee4b84a33ff4 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -339,17 +339,29 @@ static struct xfrm6_tunnel xfrm6_tunnel_handler = {
         .priority       = 2,
 };
 
+static struct xfrm6_tunnel xfrm46_tunnel_handler = {
+        .handler        = xfrm6_tunnel_rcv,
+        .err_handler    = xfrm6_tunnel_err,
+        .priority       = 2,
+};
+
 static int __init xfrm6_tunnel_init(void)
 {
         if (xfrm_register_type(&xfrm6_tunnel_type, AF_INET6) < 0)
                 return -EAGAIN;
 
-        if (xfrm6_tunnel_register(&xfrm6_tunnel_handler)) {
+        if (xfrm6_tunnel_register(&xfrm6_tunnel_handler, AF_INET6)) {
+                xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
+                return -EAGAIN;
+        }
+        if (xfrm6_tunnel_register(&xfrm46_tunnel_handler, AF_INET)) {
+                xfrm6_tunnel_deregister(&xfrm6_tunnel_handler, AF_INET6);
                 xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
                 return -EAGAIN;
         }
         if (xfrm6_tunnel_spi_init() < 0) {
-                xfrm6_tunnel_deregister(&xfrm6_tunnel_handler);
+                xfrm6_tunnel_deregister(&xfrm46_tunnel_handler, AF_INET);
+                xfrm6_tunnel_deregister(&xfrm6_tunnel_handler, AF_INET6);
                 xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
                 return -EAGAIN;
         }
@@ -359,7 +371,8 @@ static int __init xfrm6_tunnel_init(void)
 static void __exit xfrm6_tunnel_fini(void)
 {
         xfrm6_tunnel_spi_fini();
-        xfrm6_tunnel_deregister(&xfrm6_tunnel_handler);
+        xfrm6_tunnel_deregister(&xfrm46_tunnel_handler, AF_INET);
+        xfrm6_tunnel_deregister(&xfrm6_tunnel_handler, AF_INET6);
         xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
 }
 
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 135087d4213a..396deb71480f 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -71,8 +71,6 @@
 #include <asm/system.h>
 #include <asm/div64.h>
 
-#define HFSC_DEBUG 1
-
 /*
  * kernel internal service curve representation:
  *   coordinates are given by 64 bit unsigned integers.
@@ -211,17 +209,6 @@ do {									\
 } while (0)
 #endif
 
-#if HFSC_DEBUG
-#define ASSERT(cond)                                                    \
-do {                                                                    \
-        if (unlikely(!(cond)))                                          \
-                printk("assertion %s failed at %s:%i (%s)\n",           \
-                       #cond, __FILE__, __LINE__, __FUNCTION__);        \
-} while (0)
-#else
-#define ASSERT(cond)
-#endif /* HFSC_DEBUG */
-
 #define HT_INFINITY     0xffffffffffffffffULL   /* infinite time value */
 
 
@@ -1492,7 +1479,7 @@ hfsc_schedule_watchdog(struct Qdisc *sch, u64 cur_time)
                 if (next_time == 0 || next_time > q->root.cl_cfmin)
                         next_time = q->root.cl_cfmin;
         }
-        ASSERT(next_time != 0);
+        WARN_ON(next_time == 0);
         delay = next_time - cur_time;
         delay = PSCHED_US2JIFFIE(delay);
 
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index c394b413f651..946b715db5ec 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1550,7 +1550,7 @@ xfrm_state_ok(struct xfrm_tmpl *tmpl, struct xfrm_state *x,
               unsigned short family)
 {
         if (xfrm_state_kern(x))
-                return tmpl->optional && !xfrm_state_addr_cmp(tmpl, x, family);
+                return tmpl->optional && !xfrm_state_addr_cmp(tmpl, x, tmpl->encap_family);
         return  x->id.proto == tmpl->id.proto &&
                 (x->id.spi == tmpl->id.spi || !tmpl->id.spi) &&
                 (x->props.reqid == tmpl->reqid || !tmpl->reqid) &&