Extension revision number support (if kernel supports the getsockopts).
Enhance MARK match with second revision.
Committed in anticipation of the kernel patch being applied.
diff --git a/include/iptables.h b/include/iptables.h
index 6d997f7..25f36ae 100644
--- a/include/iptables.h
+++ b/include/iptables.h
@@ -12,6 +12,18 @@
 #define IPPROTO_SCTP 132
 #endif
 
+#ifndef IPT_SO_GET_REVISION_MATCH /* Old kernel source. */
+#define IPT_SO_GET_REVISION_MATCH	(IPT_BASE_CTL + 2)
+#define IPT_SO_GET_REVISION_TARGET	(IPT_BASE_CTL + 3)
+
+struct ipt_get_revision
+{
+	char name[IPT_FUNCTION_MAXNAMELEN-1];
+
+	u_int8_t revision;
+};
+#endif /* IPT_SO_GET_REVISION_MATCH   Old kernel source */
+
 struct iptables_rule_match
 {
 	struct iptables_rule_match *next;
@@ -26,6 +38,9 @@
 
 	ipt_chainlabel name;
 
+	/* Revision of match (0 by default). */
+	u_int8_t revision;
+
 	const char *version;
 
 	/* Size of match data. */
@@ -76,6 +91,9 @@
 
 	ipt_chainlabel name;
 
+	/* Revision of target (0 by default). */
+	u_int8_t revision;
+
 	const char *version;
 
 	/* Size of target data. */