From f693586d1b69114049a47fa615872ad4c14dcff2 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 5 Mar 2009 13:26:29 +0100
Subject: src: add support for GRE transport protocol

This patch adds support for GRE transport protocol.

Tested-by: Byan Buff <bduff@ecessa.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 src/conntrack/snprintf_xml.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'src/conntrack/snprintf_xml.c')

diff --git a/src/conntrack/snprintf_xml.c b/src/conntrack/snprintf_xml.c
index b14ff43..cb6fc03 100644
--- a/src/conntrack/snprintf_xml.c
+++ b/src/conntrack/snprintf_xml.c
@@ -59,7 +59,8 @@ static char *proto2str[IPPROTO_MAX] = {
         [IPPROTO_UDPLITE] = "udplite",
         [IPPROTO_ICMP] = "icmp",
         [IPPROTO_ICMPV6] = "icmp6",
-        [IPPROTO_SCTP] = "sctp"
+        [IPPROTO_SCTP] = "sctp",
+        [IPPROTO_GRE] = "gre"
 };
 static char *l3proto2str[AF_MAX] = {
 	[AF_INET] = "ipv4",
@@ -177,6 +178,17 @@ static int __snprintf_proto_xml(char *buf,
 			BUFFER_SIZE(ret, size, len, offset);
 		}
 		break;
+	case IPPROTO_GRE:
+		if (type == __ADDR_SRC) {
+			ret = snprintf(buf, len, "<srckey>0x%x</srckey>", 
+				       ntohs(tuple->l4src.all));
+			BUFFER_SIZE(ret, size, len, offset);
+		} else {
+			ret = snprintf(buf, len, "<dstkey>%u</dstkey>",
+				       ntohs(tuple->l4dst.all));
+			BUFFER_SIZE(ret, size, len, offset);
+		}
+		break;
 	}
 
 	return ret;
-- 
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