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tcp: Fix MD5 signature checking on IPv4 mapped sockets

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Fix MD5 signature checking so that an IPv4 active open
to an IPv6 socket can succeed.  In particular, use the
correct address family's signature generation function
for the SYN/ACK.

Reported-by:   Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: John Dykstra <john.dykstra1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Dykstra
2009-07-16 05:04:51 +00:00
committed by David S. Miller
parent a50a97d415
commit e3afe7b75e
4 changed files with 8 additions and 1 deletions
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2
net/ipv4/tcp_output.c
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@@ -2261,7 +2261,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
#ifdef CONFIG_TCP_MD5SIG
/* Okay, we have all we need - do the md5 hash if needed */
if (md5) {
tp->af_specific->calc_md5_hash(md5_hash_location,
tcp_rsk(req)->af_specific->calc_md5_hash(md5_hash_location,
md5, NULL, req, skb);
}
#endif