netfilter: nf_conntrack_sip: add TCP support

Add TCP support, which is mandated by RFC3261 for all SIP elements.

SIP over TCP is similar to UDP, except that messages are delimited
by Content-Length: headers and multiple messages may appear in one
packet.

Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index 2c6950b8bf7e..fa9bb8981450 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -84,7 +84,8 @@ enum sip_header_types {
         SIP_HDR_FROM,
         SIP_HDR_TO,
         SIP_HDR_CONTACT,
-        SIP_HDR_VIA,
+        SIP_HDR_VIA_UDP,
+        SIP_HDR_VIA_TCP,
         SIP_HDR_EXPIRES,
         SIP_HDR_CONTENT_LENGTH,
 };