tcp: fix TCP_MAXSEG for established IPv6 passive sockets

[pandora-kernel.git] / net / ipv6 / tcp_ipv6.c

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 36131d1..4a56574 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1084,7 +1084,7 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
 
 #ifdef CONFIG_TCP_MD5SIG
        if (sk)
-               key = tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr);
+               key = tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->saddr);
 #endif
 
        if (th->ack)
@@ -1255,6 +1255,13 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
        if (!want_cookie || tmp_opt.tstamp_ok)
                TCP_ECN_create_request(req, tcp_hdr(skb));
 
+       treq->iif = sk->sk_bound_dev_if;
+
+       /* So that link locals have meaning */
+       if (!sk->sk_bound_dev_if &&
+           ipv6_addr_type(&treq->rmt_addr) & IPV6_ADDR_LINKLOCAL)
+               treq->iif = inet6_iif(skb);
+
        if (!isn) {
                struct inet_peer *peer = NULL;
 
@@ -1264,12 +1271,6 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
                        atomic_inc(&skb->users);
                        treq->pktopts = skb;
                }
-               treq->iif = sk->sk_bound_dev_if;
-
-               /* So that link locals have meaning */
-               if (!sk->sk_bound_dev_if &&
-                   ipv6_addr_type(&treq->rmt_addr) & IPV6_ADDR_LINKLOCAL)
-                       treq->iif = inet6_iif(skb);
 
                if (want_cookie) {
                        isn = cookie_v6_init_sequence(sk, skb, &req->mss);
@@ -1493,6 +1494,10 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
        tcp_mtup_init(newsk);
        tcp_sync_mss(newsk, dst_mtu(dst));
        newtp->advmss = dst_metric_advmss(dst);
+       if (tcp_sk(sk)->rx_opt.user_mss &&
+           tcp_sk(sk)->rx_opt.user_mss < newtp->advmss)
+               newtp->advmss = tcp_sk(sk)->rx_opt.user_mss;
+
        tcp_initialize_rcv_mss(newsk);
        if (tcp_rsk(req)->snt_synack)
                tcp_valid_rtt_meas(newsk,