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ipv4: Add redirect support to all protocol icmp error handlers.

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Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
David S. Miller 2012-07-11 21:27:49 -07:00
commit 55be7a9c60
12 changed files with 110 additions and 16 deletions
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11
net/dccp/ipv4.c
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@ -195,6 +195,14 @@ static inline void dccp_do_pmtu_discovery(struct sock *sk,
} /* else let the usual retransmit timer handle it */
}
static void dccp_do_redirect(struct sk_buff *skb, struct sock *sk)
{
struct dst_entry *dst = __sk_dst_check(sk, 0);
if (dst && dst->ops->redirect)
dst->ops->redirect(dst, skb);
}
/*
* This routine is called by the ICMP module when it gets some sort of error
* condition. If err < 0 then the socket should be closed and the error
@ -259,6 +267,9 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
}
switch (type) {
case ICMP_REDIRECT:
dccp_do_redirect(skb, sk);
goto out;
case ICMP_SOURCE_QUENCH:
/* Just silently ignore these. */
goto out;