1 files changed, 70 insertions, 0 deletions
diff --git a/net/ipv4/netfilter/ip_nat_proto_unknown.c b/net/ipv4/netfilter/ip_nat_proto_unknown.c
new file mode 100644
index 00000000000..f5525bd58d1
--- /dev/null
+++ b/net/ipv4/netfilter/ip_nat_proto_unknown.c
@@ -0,0 +1,70 @@
+/* The "unknown" protocol.  This is what is used for protocols we
+ * don't understand.  It's returned by ip_ct_find_proto().
+ */
+
+/* (C) 1999-2001 Paul `Rusty' Russell
+ * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/netfilter.h>
+#include <linux/if.h>
+
+#include <linux/netfilter_ipv4/ip_nat.h>
+#include <linux/netfilter_ipv4/ip_nat_rule.h>
+#include <linux/netfilter_ipv4/ip_nat_protocol.h>
+
+static int unknown_in_range(const struct ip_conntrack_tuple *tuple,
+			    enum ip_nat_manip_type manip_type,
+			    const union ip_conntrack_manip_proto *min,
+			    const union ip_conntrack_manip_proto *max)
+{
+	return 1;
+}
+
+static int unknown_unique_tuple(struct ip_conntrack_tuple *tuple,
+				const struct ip_nat_range *range,
+				enum ip_nat_manip_type maniptype,
+				const struct ip_conntrack *conntrack)
+{
+	/* Sorry: we can't help you; if it's not unique, we can't frob
+	   anything. */
+	return 0;
+}
+
+static int
+unknown_manip_pkt(struct sk_buff **pskb,
+		  unsigned int iphdroff,
+		  const struct ip_conntrack_tuple *tuple,
+		  enum ip_nat_manip_type maniptype)
+{
+	return 1;
+}
+
+static unsigned int
+unknown_print(char *buffer,
+	      const struct ip_conntrack_tuple *match,
+	      const struct ip_conntrack_tuple *mask)
+{
+	return 0;
+}
+
+static unsigned int
+unknown_print_range(char *buffer, const struct ip_nat_range *range)
+{
+	return 0;
+}
+
+struct ip_nat_protocol ip_nat_unknown_protocol = {
+	"unknown", 0,
+	unknown_manip_pkt,
+	unknown_in_range,
+	unknown_unique_tuple,
+	unknown_print,
+	unknown_print_range
+};