diff options
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 94f4f89d73e7..04529a3d42cb 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -671,6 +671,7 @@ static bool tcp_v6_inbound_md5_hash(const struct sock *sk, NULL, skb); if (genhash || memcmp(hash_location, newhash, 16) != 0) { + NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPMD5FAILURE); net_info_ratelimited("MD5 Hash %s for [%pI6c]:%u->[%pI6c]:%u\n", genhash ? "failed" : "mismatch", &ip6h->saddr, ntohs(th->source), @@ -1415,6 +1416,7 @@ process: sk = req->rsk_listener; tcp_v6_fill_cb(skb, hdr, th); if (tcp_v6_inbound_md5_hash(sk, skb)) { + sk_drops_add(sk, skb); reqsk_put(req); goto discard_it; } @@ -1471,10 +1473,7 @@ process: if (!sock_owned_by_user(sk)) { if (!tcp_prequeue(sk, skb)) ret = tcp_v6_do_rcv(sk, skb); - } else if (unlikely(sk_add_backlog(sk, skb, - sk->sk_rcvbuf + sk->sk_sndbuf))) { - bh_unlock_sock(sk); - __NET_INC_STATS(net, LINUX_MIB_TCPBACKLOGDROP); + } else if (tcp_add_backlog(sk, skb)) { goto discard_and_relse; } bh_unlock_sock(sk); @@ -1868,17 +1867,6 @@ void tcp6_proc_exit(struct net *net) } #endif -static void tcp_v6_clear_sk(struct sock *sk, int size) -{ - struct inet_sock *inet = inet_sk(sk); - - /* we do not want to clear pinet6 field, because of RCU lookups */ - sk_prot_clear_nulls(sk, offsetof(struct inet_sock, pinet6)); - - size -= offsetof(struct inet_sock, pinet6) + sizeof(inet->pinet6); - memset(&inet->pinet6 + 1, 0, size); -} - struct proto tcpv6_prot = { .name = "TCPv6", .owner = THIS_MODULE, @@ -1920,7 +1908,6 @@ struct proto tcpv6_prot = { .compat_setsockopt = compat_tcp_setsockopt, .compat_getsockopt = compat_tcp_getsockopt, #endif - .clear_sk = tcp_v6_clear_sk, .diag_destroy = tcp_abort, }; |