From 595a8ecb5fa41295a7010678b60cb2f7ab15fe42 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Tue, 25 Mar 2008 20:22:53 -0700 Subject: [PATCH] [NETFILTER]: nf_conntrack_sip: process ACK and PRACK methods Both may contains SDP offers/answers. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nf_conntrack_sip.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c index 29a37d2126..71f744ad76 100644 --- a/net/netfilter/nf_conntrack_sip.c +++ b/net/netfilter/nf_conntrack_sip.c @@ -624,9 +624,22 @@ static int process_update_response(struct sk_buff *skb, return NF_ACCEPT; } +static int process_prack_response(struct sk_buff *skb, + const char **dptr, unsigned int *datalen, + unsigned int cseq, unsigned int code) +{ + if ((code >= 100 && code <= 199) || + (code >= 200 && code <= 299)) + return process_sdp(skb, dptr, datalen, cseq); + + return NF_ACCEPT; +} + static const struct sip_handler sip_handlers[] = { SIP_HANDLER("INVITE", process_sdp, process_invite_response), SIP_HANDLER("UPDATE", process_sdp, process_update_response), + SIP_HANDLER("ACK", process_sdp, NULL), + SIP_HANDLER("PRACK", process_sdp, process_prack_response), }; static int process_sip_response(struct sk_buff *skb, -- 2.39.5