diff options
| -rw-r--r-- | net/ipv4/tcp_output.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index dda42f0bd7a3..557fe16cbfb0 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -663,10 +663,14 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, th->urg_ptr = 0; /* The urg_mode check is necessary during a below snd_una win probe */ - if (unlikely(tcp_urg_mode(tp) && - between(tp->snd_up, tcb->seq + 1, tcb->seq + 0xFFFF))) { - th->urg_ptr = htons(tp->snd_up - tcb->seq); - th->urg = 1; + if (unlikely(tcp_urg_mode(tp))) { + if (between(tp->snd_up, tcb->seq + 1, tcb->seq + 0xFFFF)) { + th->urg_ptr = htons(tp->snd_up - tcb->seq); + th->urg = 1; + } else if (after(tcb->seq + 0xFFFF, tp->snd_nxt)) { + th->urg_ptr = 0xFFFF; + th->urg = 1; + } } tcp_options_write((__be32 *)(th + 1), tp, &opts, &md5_hash_location); |