1 files changed, 53 insertions, 0 deletions
diff --git a/include/conntrack.h b/include/conntrack.h
new file mode 100644
index 0000000..db434d6
--- /dev/null
+++ b/include/conntrack.h
@@ -0,0 +1,53 @@
+#ifndef _LIBCT_PROTO_H
+#define _LIBCT_PROTO_H
+
+#include "linux_list.h"
+#include <getopt.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+#define LIBCT_VERSION	"0.1.0"
+
+/* FIXME: These should be independent from kernel space */
+#define IPS_ASSURED (1 << 2)
+#define IPS_SEEN_REPLY (1 << 1)
+#define IPS_SRC_NAT_DONE (1 << 7)
+#define IPS_DST_NAT_DONE (1 << 8)
+#define IPS_CONFIRMED (1 << 3)
+
+struct ctproto_handler {
+	struct list_head 	head;
+
+	char 			*name;
+	u_int16_t 		protonum;
+	char			*version;
+
+	enum ctattr_protoinfo	protoinfo_attr;
+	
+	int (*parse_opts)(char c, char *argv[], 
+		     struct nfct_tuple *orig,
+		     struct nfct_tuple *reply,
+		     struct nfct_tuple *mask,
+		     union nfct_protoinfo *proto,
+		     unsigned int *flags);
+
+	int (*final_check)(unsigned int flags,
+			   struct nfct_tuple *orig,
+			   struct nfct_tuple *reply);
+
+	void (*help)();
+
+	struct option 		*opts;
+
+	unsigned int		option_offset;
+};
+
+extern void register_proto(struct ctproto_handler *h);
+extern void unregister_proto(struct ctproto_handler *h);
+
+#define NIPQUAD(addr) \
+	((unsigned char *)&addr)[0], \
+	((unsigned char *)&addr)[1], \
+	((unsigned char *)&addr)[2], \
+	((unsigned char *)&addr)[3]
+
+#endif