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authorJerome Borsboom <j.borsboom@erasmusmc.nl>2007-07-07 22:19:48 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-10 22:17:12 -0700
commitf4a607bfae30d15aad46e75d2ed7a39f7ce7708b (patch)
treeaefe93235430427833e0eed936ca80a991d9df0d /net
parent7c4e36bc172ae1accde835b880fdc4a2c2a3df57 (diff)
[NETFILTER]: nf_nat_sip: only perform RTP DNAT if SIP session was SNATed
DNAT of the the RTP session is only necessary if the SIP session has been SNATed. Signed-off-by: Jerome Borsboom <j.borsboom@erasmusmc.nl> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/netfilter/nf_nat_sip.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/netfilter/nf_nat_sip.c b/net/ipv4/netfilter/nf_nat_sip.c
index fac97cf51ae..a32d746c459 100644
--- a/net/ipv4/netfilter/nf_nat_sip.c
+++ b/net/ipv4/netfilter/nf_nat_sip.c
@@ -260,7 +260,11 @@ static unsigned int ip_nat_sdp(struct sk_buff **pskb,
DEBUGP("ip_nat_sdp():\n");
/* Connection will come from reply */
- newip = ct->tuplehash[!dir].tuple.dst.u3.ip;
+ if (ct->tuplehash[dir].tuple.src.u3.ip ==
+ ct->tuplehash[!dir].tuple.dst.u3.ip)
+ newip = exp->tuple.dst.u3.ip;
+ else
+ newip = ct->tuplehash[!dir].tuple.dst.u3.ip;
exp->saved_ip = exp->tuple.dst.u3.ip;
exp->tuple.dst.u3.ip = newip;