Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[safe/jmp/linux-2.6] / net / ipv6 / raw.c
index 0e2b56c..70a57e4 100644 (file)
@@ -7,8 +7,6 @@
  *
  *     Adapted from linux/net/ipv4/raw.c
  *
- *     $Id: raw.c,v 1.51 2002/02/01 22:01:04 davem Exp $
- *
  *     Fixes:
  *     Hideaki YOSHIFUJI       :       sin6_scope_id support
  *     YOSHIFUJI,H.@USAGI      :       raw checksum (RFC2292(bis) compliance)
@@ -35,6 +33,7 @@
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
 
+#include <net/net_namespace.h>
 #include <net/ip.h>
 #include <net/sock.h>
 #include <net/snmp.h>
 #include <net/udp.h>
 #include <net/inet_common.h>
 #include <net/tcp_states.h>
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 #include <net/mip6.h>
 #endif
+#include <linux/mroute6.h>
 
+#include <net/raw.h>
 #include <net/rawv6.h>
 #include <net/xfrm.h>
 
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 
-struct hlist_head raw_v6_htable[RAWV6_HTABLE_SIZE];
-DEFINE_RWLOCK(raw_v6_lock);
-
-static void raw_v6_hash(struct sock *sk)
-{
-       struct hlist_head *list = &raw_v6_htable[inet_sk(sk)->num &
-                                                (RAWV6_HTABLE_SIZE - 1)];
-
-       write_lock_bh(&raw_v6_lock);
-       sk_add_node(sk, list);
-       sock_prot_inc_use(sk->sk_prot);
-       write_unlock_bh(&raw_v6_lock);
-}
-
-static void raw_v6_unhash(struct sock *sk)
-{
-       write_lock_bh(&raw_v6_lock);
-       if (sk_del_node_init(sk))
-               sock_prot_dec_use(sk->sk_prot);
-       write_unlock_bh(&raw_v6_lock);
-}
-
+static struct raw_hashinfo raw_v6_hashinfo = {
+       .lock = __RW_LOCK_UNLOCKED(raw_v6_hashinfo.lock),
+};
 
-/* Grumble... icmp and ip_input want to get at this... */
-struct sock *__raw_v6_lookup(struct sock *sk, unsigned short num,
-                            struct in6_addr *loc_addr, struct in6_addr *rmt_addr,
-                            int dif)
+static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk,
+               unsigned short num, struct in6_addr *loc_addr,
+               struct in6_addr *rmt_addr, int dif)
 {
        struct hlist_node *node;
        int is_multicast = ipv6_addr_is_multicast(loc_addr);
@@ -94,6 +75,9 @@ struct sock *__raw_v6_lookup(struct sock *sk, unsigned short num,
                if (inet_sk(sk)->num == num) {
                        struct ipv6_pinfo *np = inet6_sk(sk);
 
+                       if (!net_eq(sock_net(sk), net))
+                               continue;
+
                        if (!ipv6_addr_any(&np->daddr) &&
                            !ipv6_addr_equal(&np->daddr, rmt_addr))
                                continue;
@@ -137,6 +121,28 @@ static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb)
        return 0;
 }
 
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+static int (*mh_filter)(struct sock *sock, struct sk_buff *skb);
+
+int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
+                                          struct sk_buff *skb))
+{
+       rcu_assign_pointer(mh_filter, filter);
+       return 0;
+}
+EXPORT_SYMBOL(rawv6_mh_filter_register);
+
+int rawv6_mh_filter_unregister(int (*filter)(struct sock *sock,
+                                            struct sk_buff *skb))
+{
+       rcu_assign_pointer(mh_filter, NULL);
+       synchronize_rcu();
+       return 0;
+}
+EXPORT_SYMBOL(rawv6_mh_filter_unregister);
+
+#endif
+
 /*
  *     demultiplex raw sockets.
  *     (should consider queueing the skb in the sock receive_queue
@@ -144,31 +150,28 @@ static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb)
  *
  *     Caller owns SKB so we must make clones.
  */
-int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
+static int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
 {
        struct in6_addr *saddr;
        struct in6_addr *daddr;
        struct sock *sk;
        int delivered = 0;
        __u8 hash;
+       struct net *net;
 
        saddr = &ipv6_hdr(skb)->saddr;
        daddr = saddr + 1;
 
        hash = nexthdr & (MAX_INET_PROTOS - 1);
 
-       read_lock(&raw_v6_lock);
-       sk = sk_head(&raw_v6_htable[hash]);
-
-       /*
-        *      The first socket found will be delivered after
-        *      delivery to transport protocols.
-        */
+       read_lock(&raw_v6_hashinfo.lock);
+       sk = sk_head(&raw_v6_hashinfo.ht[hash]);
 
        if (sk == NULL)
                goto out;
 
-       sk = __raw_v6_lookup(sk, nexthdr, daddr, saddr, IP6CB(skb)->iif);
+       net = dev_net(skb->dev);
+       sk = __raw_v6_lookup(net, sk, nexthdr, daddr, saddr, IP6CB(skb)->iif);
 
        while (sk) {
                int filtered;
@@ -178,16 +181,22 @@ int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
                case IPPROTO_ICMPV6:
                        filtered = icmpv6_filter(sk, skb);
                        break;
-#ifdef CONFIG_IPV6_MIP6
+
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
                case IPPROTO_MH:
+               {
                        /* XXX: To validate MH only once for each packet,
                         * this is placed here. It should be after checking
                         * xfrm policy, however it doesn't. The checking xfrm
                         * policy is placed in rawv6_rcv() because it is
                         * required for each socket.
                         */
-                       filtered = mip6_mh_filter(sk, skb);
+                       int (*filter)(struct sock *sock, struct sk_buff *skb);
+
+                       filter = rcu_dereference(mh_filter);
+                       filtered = filter ? filter(sk, skb) : 0;
                        break;
+               }
 #endif
                default:
                        filtered = 0;
@@ -205,14 +214,25 @@ int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
                                rawv6_rcv(sk, clone);
                        }
                }
-               sk = __raw_v6_lookup(sk_next(sk), nexthdr, daddr, saddr,
+               sk = __raw_v6_lookup(net, sk_next(sk), nexthdr, daddr, saddr,
                                     IP6CB(skb)->iif);
        }
 out:
-       read_unlock(&raw_v6_lock);
+       read_unlock(&raw_v6_hashinfo.lock);
        return delivered;
 }
 
+int raw6_local_deliver(struct sk_buff *skb, int nexthdr)
+{
+       struct sock *raw_sk;
+
+       raw_sk = sk_head(&raw_v6_hashinfo.ht[nexthdr & (MAX_INET_PROTOS - 1)]);
+       if (raw_sk && !ipv6_raw_deliver(skb, nexthdr))
+               raw_sk = NULL;
+
+       return raw_sk != NULL;
+}
+
 /* This cleans up af_inet6 a bit. -DaveM */
 static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 {
@@ -254,7 +274,7 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
                        if (!sk->sk_bound_dev_if)
                                goto out;
 
-                       dev = dev_get_by_index(sk->sk_bound_dev_if);
+                       dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if);
                        if (!dev) {
                                err = -ENODEV;
                                goto out;
@@ -267,7 +287,8 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
                v4addr = LOOPBACK4_IPV6;
                if (!(addr_type & IPV6_ADDR_MULTICAST)) {
                        err = -EADDRNOTAVAIL;
-                       if (!ipv6_chk_addr(&addr->sin6_addr, dev, 0)) {
+                       if (!ipv6_chk_addr(sock_net(sk), &addr->sin6_addr,
+                                          dev, 0)) {
                                if (dev)
                                        dev_put(dev);
                                goto out;
@@ -287,7 +308,7 @@ out:
        return err;
 }
 
-void rawv6_err(struct sock *sk, struct sk_buff *skb,
+static void rawv6_err(struct sock *sk, struct sk_buff *skb,
               struct inet6_skb_parm *opt,
               int type, int code, int offset, __be32 info)
 {
@@ -321,18 +342,47 @@ void rawv6_err(struct sock *sk, struct sk_buff *skb,
        }
 }
 
+void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
+               int type, int code, int inner_offset, __be32 info)
+{
+       struct sock *sk;
+       int hash;
+       struct in6_addr *saddr, *daddr;
+       struct net *net;
+
+       hash = nexthdr & (RAW_HTABLE_SIZE - 1);
+
+       read_lock(&raw_v6_hashinfo.lock);
+       sk = sk_head(&raw_v6_hashinfo.ht[hash]);
+       if (sk != NULL) {
+               /* Note: ipv6_hdr(skb) != skb->data */
+               struct ipv6hdr *ip6h = (struct ipv6hdr *)skb->data;
+               saddr = &ip6h->saddr;
+               daddr = &ip6h->daddr;
+               net = dev_net(skb->dev);
+
+               while ((sk = __raw_v6_lookup(net, sk, nexthdr, saddr, daddr,
+                                               IP6CB(skb)->iif))) {
+                       rawv6_err(sk, skb, NULL, type, code,
+                                       inner_offset, info);
+                       sk = sk_next(sk);
+               }
+       }
+       read_unlock(&raw_v6_hashinfo.lock);
+}
+
 static inline int rawv6_rcv_skb(struct sock * sk, struct sk_buff * skb)
 {
        if ((raw6_sk(sk)->checksum || sk->sk_filter) &&
            skb_checksum_complete(skb)) {
-               /* FIXME: increment a raw6 drops counter here */
+               atomic_inc(&sk->sk_drops);
                kfree_skb(skb);
                return 0;
        }
 
        /* Charge it to the socket. */
        if (sock_queue_rcv_skb(sk,skb)<0) {
-               /* FIXME: increment a raw6 drops counter here */
+               atomic_inc(&sk->sk_drops);
                kfree_skb(skb);
                return 0;
        }
@@ -353,6 +403,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
        struct raw6_sock *rp = raw6_sk(sk);
 
        if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
+               atomic_inc(&sk->sk_drops);
                kfree_skb(skb);
                return NET_RX_DROP;
        }
@@ -362,13 +413,13 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
 
        if (skb->ip_summed == CHECKSUM_COMPLETE) {
                skb_postpull_rcsum(skb, skb_network_header(skb),
-                                  skb->h.raw - skb->nh.raw);
+                                  skb_network_header_len(skb));
                if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
                                     &ipv6_hdr(skb)->daddr,
                                     skb->len, inet->num, skb->csum))
                        skb->ip_summed = CHECKSUM_UNNECESSARY;
        }
-       if (skb->ip_summed != CHECKSUM_UNNECESSARY)
+       if (!skb_csum_unnecessary(skb))
                skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
                                                         &ipv6_hdr(skb)->daddr,
                                                         skb->len,
@@ -376,7 +427,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
 
        if (inet->hdrincl) {
                if (skb_checksum_complete(skb)) {
-                       /* FIXME: increment a raw6 drops counter here */
+                       atomic_inc(&sk->sk_drops);
                        kfree_skb(skb);
                        return 0;
                }
@@ -421,7 +472,7 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
                msg->msg_flags |= MSG_TRUNC;
        }
 
-       if (skb->ip_summed==CHECKSUM_UNNECESSARY) {
+       if (skb_csum_unnecessary(skb)) {
                err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
        } else if (msg->msg_flags&MSG_TRUNC) {
                if (__skb_checksum_complete(skb))
@@ -467,7 +518,7 @@ csum_copy_err:
           as some normal condition.
         */
        err = (flags&MSG_DONTWAIT) ? -EAGAIN : -EHOSTUNREACH;
-       /* FIXME: increment a raw6 drops counter here */
+       atomic_inc(&sk->sk_drops);
        goto out;
 }
 
@@ -513,7 +564,7 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl,
                        if (csum_skb)
                                continue;
 
-                       len = skb->len - (skb->h.raw - skb->data);
+                       len = skb->len - skb_transport_offset(skb);
                        if (offset >= len) {
                                offset -= len;
                                continue;
@@ -525,7 +576,7 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl,
                skb = csum_skb;
        }
 
-       offset += skb->h.raw - skb->data;
+       offset += skb_transport_offset(skb);
        if (skb_copy_bits(skb, offset, &csum, 2))
                BUG();
 
@@ -556,7 +607,6 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
        struct ipv6_pinfo *np = inet6_sk(sk);
        struct ipv6hdr *iph;
        struct sk_buff *skb;
-       unsigned int hh_len;
        int err;
 
        if (length > rt->u.dst.dev->mtu) {
@@ -566,15 +616,15 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
        if (flags&MSG_PROBE)
                goto out;
 
-       hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
-
-       skb = sock_alloc_send_skb(sk, length+hh_len+15,
-                                 flags&MSG_DONTWAIT, &err);
+       skb = sock_alloc_send_skb(sk,
+                                 length + LL_ALLOCATED_SPACE(rt->u.dst.dev) + 15,
+                                 flags & MSG_DONTWAIT, &err);
        if (skb == NULL)
                goto error;
-       skb_reserve(skb, hh_len);
+       skb_reserve(skb, LL_RESERVED_SPACE(rt->u.dst.dev));
 
        skb->priority = sk->sk_priority;
+       skb->mark = sk->sk_mark;
        skb->dst = dst_clone(&rt->u.dst);
 
        skb_put(skb, length);
@@ -583,13 +633,13 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
 
        skb->ip_summed = CHECKSUM_NONE;
 
-       skb->h.raw = skb->nh.raw;
+       skb->transport_header = skb->network_header;
        err = memcpy_fromiovecend((void *)iph, from, 0, length);
        if (err)
                goto error_fault;
 
        IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
-       err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
+       err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
                      dst_output);
        if (err > 0)
                err = np->recverr ? net_xmit_errno(err) : 0;
@@ -611,9 +661,7 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
        struct iovec *iov;
        u8 __user *type = NULL;
        u8 __user *code = NULL;
-#ifdef CONFIG_IPV6_MIP6
        u8 len = 0;
-#endif
        int probed = 0;
        int i;
 
@@ -646,7 +694,6 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
                                probed = 1;
                        }
                        break;
-#ifdef CONFIG_IPV6_MIP6
                case IPPROTO_MH:
                        if (iov->iov_base && iov->iov_len < 1)
                                break;
@@ -660,7 +707,6 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
                                len += iov->iov_len;
 
                        break;
-#endif
                default:
                        probed = 1;
                        break;
@@ -705,6 +751,8 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
         */
        memset(&fl, 0, sizeof(fl));
 
+       fl.mark = sk->sk_mark;
+
        if (sin6) {
                if (addr_len < SIN6_LEN_RFC2133)
                        return -EINVAL;
@@ -755,15 +803,6 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
                fl.fl6_flowlabel = np->flow_label;
        }
 
-       if (ipv6_addr_any(daddr)) {
-               /*
-                * unspecified destination address
-                * treated as error... is this correct ?
-                */
-               fl6_sock_release(flowlabel);
-               return(-EINVAL);
-       }
-
        if (fl.oif == 0)
                fl.oif = sk->sk_bound_dev_if;
 
@@ -772,7 +811,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
                memset(opt, 0, sizeof(struct ipv6_txoptions));
                opt->tot_len = sizeof(struct ipv6_txoptions);
 
-               err = datagram_send_ctl(msg, &fl, opt, &hlimit, &tclass);
+               err = datagram_send_ctl(sock_net(sk), msg, &fl, opt, &hlimit, &tclass);
                if (err < 0) {
                        fl6_sock_release(flowlabel);
                        return err;
@@ -796,7 +835,10 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
        if (err)
                goto out;
 
-       ipv6_addr_copy(&fl.fl6_dst, daddr);
+       if (!ipv6_addr_any(daddr))
+               ipv6_addr_copy(&fl.fl6_dst, daddr);
+       else
+               fl.fl6_dst.s6_addr[15] = 0x1; /* :: means loopback (BSD'ism) */
        if (ipv6_addr_any(&fl.fl6_src) && !ipv6_addr_any(&np->saddr))
                ipv6_addr_copy(&fl.fl6_src, &np->saddr);
 
@@ -818,8 +860,12 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
        if (final_p)
                ipv6_addr_copy(&fl.fl6_dst, final_p);
 
-       if ((err = xfrm_lookup(&dst, &fl, sk, 1)) < 0)
-               goto out;
+       if ((err = __xfrm_lookup(&dst, &fl, sk, XFRM_LOOKUP_WAIT)) < 0) {
+               if (err == -EREMOTE)
+                       err = ip6_dst_blackhole(sk, &dst, &fl);
+               if (err < 0)
+                       goto out;
+       }
 
        if (hlimit < 0) {
                if (ipv6_addr_is_multicast(&fl.fl6_dst))
@@ -827,9 +873,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
                else
                        hlimit = np->hop_limit;
                if (hlimit < 0)
-                       hlimit = dst_metric(dst, RTAX_HOPLIMIT);
-               if (hlimit < 0)
-                       hlimit = ipv6_get_hoplimit(dst->dev);
+                       hlimit = ip6_dst_hoplimit(dst);
        }
 
        if (tclass < 0) {
@@ -854,11 +898,10 @@ back_from_confirm:
                        ip6_flush_pending_frames(sk);
                else if (!(msg->msg_flags & MSG_MORE))
                        err = rawv6_push_pending_frames(sk, &fl, rp);
+               release_sock(sk);
        }
 done:
        dst_release(dst);
-       if (!inet->hdrincl)
-               release_sock(sk);
 out:
        fl6_sock_release(flowlabel);
        return err<0?err:len;
@@ -882,7 +925,7 @@ static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
                return 0;
        default:
                return -ENOPROTOOPT;
-       };
+       }
 
        return 0;
 }
@@ -907,7 +950,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
                return 0;
        default:
                return -ENOPROTOOPT;
-       };
+       }
 
        return 0;
 }
@@ -924,6 +967,19 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
 
        switch (optname) {
                case IPV6_CHECKSUM:
+                       if (inet_sk(sk)->num == IPPROTO_ICMPV6 &&
+                           level == IPPROTO_IPV6) {
+                               /*
+                                * RFC3542 tells that IPV6_CHECKSUM socket
+                                * option in the IPPROTO_IPV6 level is not
+                                * allowed on ICMPv6 sockets.
+                                * If you want to set it, use IPPROTO_RAW
+                                * level IPV6_CHECKSUM socket option
+                                * (Linux extension).
+                                */
+                               return -EINVAL;
+                       }
+
                        /* You may get strange result with a positive odd offset;
                           RFC2292bis agrees with me. */
                        if (val > 0 && (val&1))
@@ -961,7 +1017,8 @@ static int rawv6_setsockopt(struct sock *sk, int level, int optname,
                default:
                        return ipv6_setsockopt(sk, level, optname, optval,
                                               optlen);
-       };
+       }
+
        return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
 }
 
@@ -982,7 +1039,7 @@ static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname,
        default:
                return compat_ipv6_setsockopt(sk, level, optname,
                                              optval, optlen);
-       };
+       }
        return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
 }
 #endif
@@ -998,6 +1055,11 @@ static int do_rawv6_getsockopt(struct sock *sk, int level, int optname,
 
        switch (optname) {
        case IPV6_CHECKSUM:
+               /*
+                * We allow getsockopt() for IPPROTO_IPV6-level
+                * IPV6_CHECKSUM socket option on ICMPv6 sockets
+                * since RFC3542 is silent about it.
+                */
                if (rp->checksum == 0)
                        val = -1;
                else
@@ -1035,7 +1097,8 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname,
                default:
                        return ipv6_getsockopt(sk, level, optname, optval,
                                               optlen);
-       };
+       }
+
        return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
 }
 
@@ -1056,7 +1119,7 @@ static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname,
        default:
                return compat_ipv6_getsockopt(sk, level, optname,
                                              optval, optlen);
-       };
+       }
        return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
 }
 #endif
@@ -1077,13 +1140,17 @@ static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
                        spin_lock_bh(&sk->sk_receive_queue.lock);
                        skb = skb_peek(&sk->sk_receive_queue);
                        if (skb != NULL)
-                               amount = skb->tail - skb->h.raw;
+                               amount = skb->tail - skb->transport_header;
                        spin_unlock_bh(&sk->sk_receive_queue.lock);
                        return put_user(amount, (int __user *)arg);
                }
 
                default:
+#ifdef CONFIG_IPV6_MROUTE
+                       return ip6mr_ioctl(sk, cmd, (void __user *)arg);
+#else
                        return -ENOIOCTLCMD;
+#endif
        }
 }
 
@@ -1091,10 +1158,19 @@ static void rawv6_close(struct sock *sk, long timeout)
 {
        if (inet_sk(sk)->num == IPPROTO_RAW)
                ip6_ra_control(sk, -1, NULL);
-
+       ip6mr_sk_done(sk);
        sk_common_release(sk);
 }
 
+static int raw6_destroy(struct sock *sk)
+{
+       lock_sock(sk);
+       ip6_flush_pending_frames(sk);
+       release_sock(sk);
+
+       return inet6_destroy_sock(sk);
+}
+
 static int rawv6_init_sk(struct sock *sk)
 {
        struct raw6_sock *rp = raw6_sk(sk);
@@ -1118,20 +1194,21 @@ struct proto rawv6_prot = {
        .name              = "RAWv6",
        .owner             = THIS_MODULE,
        .close             = rawv6_close,
+       .destroy           = raw6_destroy,
        .connect           = ip6_datagram_connect,
        .disconnect        = udp_disconnect,
        .ioctl             = rawv6_ioctl,
        .init              = rawv6_init_sk,
-       .destroy           = inet6_destroy_sock,
        .setsockopt        = rawv6_setsockopt,
        .getsockopt        = rawv6_getsockopt,
        .sendmsg           = rawv6_sendmsg,
        .recvmsg           = rawv6_recvmsg,
        .bind              = rawv6_bind,
        .backlog_rcv       = rawv6_rcv_skb,
-       .hash              = raw_v6_hash,
-       .unhash            = raw_v6_unhash,
+       .hash              = raw_hash_sk,
+       .unhash            = raw_unhash_sk,
        .obj_size          = sizeof(struct raw6_sock),
+       .h.raw_hash        = &raw_v6_hashinfo,
 #ifdef CONFIG_COMPAT
        .compat_setsockopt = compat_rawv6_setsockopt,
        .compat_getsockopt = compat_rawv6_getsockopt,
@@ -1139,76 +1216,6 @@ struct proto rawv6_prot = {
 };
 
 #ifdef CONFIG_PROC_FS
-struct raw6_iter_state {
-       int bucket;
-};
-
-#define raw6_seq_private(seq) ((struct raw6_iter_state *)(seq)->private)
-
-static struct sock *raw6_get_first(struct seq_file *seq)
-{
-       struct sock *sk;
-       struct hlist_node *node;
-       struct raw6_iter_state* state = raw6_seq_private(seq);
-
-       for (state->bucket = 0; state->bucket < RAWV6_HTABLE_SIZE; ++state->bucket)
-               sk_for_each(sk, node, &raw_v6_htable[state->bucket])
-                       if (sk->sk_family == PF_INET6)
-                               goto out;
-       sk = NULL;
-out:
-       return sk;
-}
-
-static struct sock *raw6_get_next(struct seq_file *seq, struct sock *sk)
-{
-       struct raw6_iter_state* state = raw6_seq_private(seq);
-
-       do {
-               sk = sk_next(sk);
-try_again:
-               ;
-       } while (sk && sk->sk_family != PF_INET6);
-
-       if (!sk && ++state->bucket < RAWV6_HTABLE_SIZE) {
-               sk = sk_head(&raw_v6_htable[state->bucket]);
-               goto try_again;
-       }
-       return sk;
-}
-
-static struct sock *raw6_get_idx(struct seq_file *seq, loff_t pos)
-{
-       struct sock *sk = raw6_get_first(seq);
-       if (sk)
-               while (pos && (sk = raw6_get_next(seq, sk)) != NULL)
-                       --pos;
-       return pos ? NULL : sk;
-}
-
-static void *raw6_seq_start(struct seq_file *seq, loff_t *pos)
-{
-       read_lock(&raw_v6_lock);
-       return *pos ? raw6_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
-}
-
-static void *raw6_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
-       struct sock *sk;
-
-       if (v == SEQ_START_TOKEN)
-               sk = raw6_get_first(seq);
-       else
-               sk = raw6_get_next(seq, v);
-       ++*pos;
-       return sk;
-}
-
-static void raw6_seq_stop(struct seq_file *seq, void *v)
-{
-       read_unlock(&raw_v6_lock);
-}
-
 static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 {
        struct ipv6_pinfo *np = inet6_sk(sp);
@@ -1221,7 +1228,7 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
        srcp  = inet_sk(sp)->num;
        seq_printf(seq,
                   "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
-                  "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p\n",
+                  "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",
                   i,
                   src->s6_addr32[0], src->s6_addr32[1],
                   src->s6_addr32[2], src->s6_addr32[3], srcp,
@@ -1233,7 +1240,7 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
                   0, 0L, 0,
                   sock_i_uid(sp), 0,
                   sock_i_ino(sp),
-                  atomic_read(&sp->sk_refcnt), sp);
+                  atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
 }
 
 static int raw6_seq_show(struct seq_file *seq, void *v)
@@ -1244,36 +1251,22 @@ static int raw6_seq_show(struct seq_file *seq, void *v)
                           "local_address                         "
                           "remote_address                        "
                           "st tx_queue rx_queue tr tm->when retrnsmt"
-                          "   uid  timeout inode\n");
+                          "   uid  timeout inode  drops\n");
        else
-               raw6_sock_seq_show(seq, v, raw6_seq_private(seq)->bucket);
+               raw6_sock_seq_show(seq, v, raw_seq_private(seq)->bucket);
        return 0;
 }
 
-static struct seq_operations raw6_seq_ops = {
-       .start =        raw6_seq_start,
-       .next =         raw6_seq_next,
-       .stop =         raw6_seq_stop,
+static const struct seq_operations raw6_seq_ops = {
+       .start =        raw_seq_start,
+       .next =         raw_seq_next,
+       .stop =         raw_seq_stop,
        .show =         raw6_seq_show,
 };
 
 static int raw6_seq_open(struct inode *inode, struct file *file)
 {
-       struct seq_file *seq;
-       int rc = -ENOMEM;
-       struct raw6_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
-       if (!s)
-               goto out;
-       rc = seq_open(file, &raw6_seq_ops);
-       if (rc)
-               goto out_kfree;
-       seq = file->private_data;
-       seq->private = s;
-out:
-       return rc;
-out_kfree:
-       kfree(s);
-       goto out;
+       return raw_seq_open(inode, file, &raw_v6_hashinfo, &raw6_seq_ops);
 }
 
 static const struct file_operations raw6_seq_fops = {
@@ -1281,18 +1274,86 @@ static const struct file_operations raw6_seq_fops = {
        .open =         raw6_seq_open,
        .read =         seq_read,
        .llseek =       seq_lseek,
-       .release =      seq_release_private,
+       .release =      seq_release_net,
 };
 
-int __init raw6_proc_init(void)
+static int raw6_init_net(struct net *net)
 {
-       if (!proc_net_fops_create("raw6", S_IRUGO, &raw6_seq_fops))
+       if (!proc_net_fops_create(net, "raw6", S_IRUGO, &raw6_seq_fops))
                return -ENOMEM;
+
        return 0;
 }
 
+static void raw6_exit_net(struct net *net)
+{
+       proc_net_remove(net, "raw6");
+}
+
+static struct pernet_operations raw6_net_ops = {
+       .init = raw6_init_net,
+       .exit = raw6_exit_net,
+};
+
+int __init raw6_proc_init(void)
+{
+       return register_pernet_subsys(&raw6_net_ops);
+}
+
 void raw6_proc_exit(void)
 {
-       proc_net_remove("raw6");
+       unregister_pernet_subsys(&raw6_net_ops);
 }
 #endif /* CONFIG_PROC_FS */
+
+/* Same as inet6_dgram_ops, sans udp_poll.  */
+static const struct proto_ops inet6_sockraw_ops = {
+       .family            = PF_INET6,
+       .owner             = THIS_MODULE,
+       .release           = inet6_release,
+       .bind              = inet6_bind,
+       .connect           = inet_dgram_connect,        /* ok           */
+       .socketpair        = sock_no_socketpair,        /* a do nothing */
+       .accept            = sock_no_accept,            /* a do nothing */
+       .getname           = inet6_getname,
+       .poll              = datagram_poll,             /* ok           */
+       .ioctl             = inet6_ioctl,               /* must change  */
+       .listen            = sock_no_listen,            /* ok           */
+       .shutdown          = inet_shutdown,             /* ok           */
+       .setsockopt        = sock_common_setsockopt,    /* ok           */
+       .getsockopt        = sock_common_getsockopt,    /* ok           */
+       .sendmsg           = inet_sendmsg,              /* ok           */
+       .recvmsg           = sock_common_recvmsg,       /* ok           */
+       .mmap              = sock_no_mmap,
+       .sendpage          = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_sock_common_setsockopt,
+       .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
+};
+
+static struct inet_protosw rawv6_protosw = {
+       .type           = SOCK_RAW,
+       .protocol       = IPPROTO_IP,   /* wild card */
+       .prot           = &rawv6_prot,
+       .ops            = &inet6_sockraw_ops,
+       .capability     = CAP_NET_RAW,
+       .no_check       = UDP_CSUM_DEFAULT,
+       .flags          = INET_PROTOSW_REUSE,
+};
+
+int __init rawv6_init(void)
+{
+       int ret;
+
+       ret = inet6_register_protosw(&rawv6_protosw);
+       if (ret)
+               goto out;
+out:
+       return ret;
+}
+
+void rawv6_exit(void)
+{
+       inet6_unregister_protosw(&rawv6_protosw);
+}