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[TCP]: Honour sk_bound_dev_if in tcp_v4_send_ack

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A time_wait socket inherits sk_bound_dev_if from the original socket,
but it is not used when sending ACK packets using ip_send_reply.

Fix by passing the oif to ip_send_reply in struct ip_reply_arg and
use it for output routing.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
2007-06-04 21:32:46 -07:00
committed by David S. Miller
parent b91b9fd112
commit f0e48dbfc5
3 changed files with 6 additions and 1 deletions
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2
net/ipv4/tcp_ipv4.c
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@@ -705,6 +705,8 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk,
ip_hdr(skb)->saddr, /* XXX */
arg.iov[0].iov_len, IPPROTO_TCP, 0);
arg.csumoffset = offsetof(struct tcphdr, check) / 2;
if (twsk)
arg.bound_dev_if = twsk->tw_sk.tw_bound_dev_if;
ip_send_reply(tcp_socket->sk, skb, &arg, arg.iov[0].iov_len);