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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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4
net/ipv4/ip_output.c
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@@ -1352,7 +1352,8 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
}
{
struct flowi fl = { .nl_u = { .ip4_u =
struct flowi fl = { .oif = arg->bound_dev_if,
.nl_u = { .ip4_u =
{ .daddr = daddr,
.saddr = rt->rt_spec_dst,
.tos = RT_TOS(ip_hdr(skb)->tos) } },
@@ -1376,6 +1377,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
inet->tos = ip_hdr(skb)->tos;
sk->sk_priority = skb->priority;
sk->sk_protocol = ip_hdr(skb)->protocol;
sk->sk_bound_dev_if = arg->bound_dev_if;
ip_append_data(sk, ip_reply_glue_bits, arg->iov->iov_base, len, 0,
&ipc, rt, MSG_DONTWAIT);
if ((skb = skb_peek(&sk->sk_write_queue)) != NULL) {