1 files changed, 92 insertions, 0 deletions
diff --git a/include/uapi/linux/netfilter/xt_sctp.h b/include/uapi/linux/netfilter/xt_sctp.h
new file mode 100644
index 0000000..29287be
--- /dev/null
+++ b/include/uapi/linux/netfilter/xt_sctp.h
@@ -0,0 +1,92 @@
+#ifndef _XT_SCTP_H_
+#define _XT_SCTP_H_
+
+#include <linux/types.h>
+
+#define XT_SCTP_SRC_PORTS	        0x01
+#define XT_SCTP_DEST_PORTS	        0x02
+#define XT_SCTP_CHUNK_TYPES		0x04
+
+#define XT_SCTP_VALID_FLAGS		0x07
+
+struct xt_sctp_flag_info {
+	__u8 chunktype;
+	__u8 flag;
+	__u8 flag_mask;
+};
+
+#define XT_NUM_SCTP_FLAGS	4
+
+struct xt_sctp_info {
+	__u16 dpts[2];  /* Min, Max */
+	__u16 spts[2];  /* Min, Max */
+
+	__u32 chunkmap[256 / sizeof (__u32)];  /* Bit mask of chunks to be matched according to RFC 2960 */
+
+#define SCTP_CHUNK_MATCH_ANY   0x01  /* Match if any of the chunk types are present */
+#define SCTP_CHUNK_MATCH_ALL   0x02  /* Match if all of the chunk types are present */
+#define SCTP_CHUNK_MATCH_ONLY  0x04  /* Match if these are the only chunk types present */
+
+	__u32 chunk_match_type;
+	struct xt_sctp_flag_info flag_info[XT_NUM_SCTP_FLAGS];
+	int flag_count;
+
+	__u32 flags;
+	__u32 invflags;
+};
+
+#define bytes(type) (sizeof(type) * 8)
+
+#define SCTP_CHUNKMAP_SET(chunkmap, type) 		\
+	do { 						\
+		(chunkmap)[type / bytes(__u32)] |= 	\
+			1 << (type % bytes(__u32));	\
+	} while (0)
+
+#define SCTP_CHUNKMAP_CLEAR(chunkmap, type)		 	\
+	do {							\
+		(chunkmap)[type / bytes(__u32)] &= 		\
+			~(1 << (type % bytes(__u32)));	\
+	} while (0)
+
+#define SCTP_CHUNKMAP_IS_SET(chunkmap, type) 			\
+({								\
+	((chunkmap)[type / bytes (__u32)] & 		\
+		(1 << (type % bytes (__u32)))) ? 1: 0;	\
+})
+
+#define SCTP_CHUNKMAP_RESET(chunkmap) \
+	memset((chunkmap), 0, sizeof(chunkmap))
+
+#define SCTP_CHUNKMAP_SET_ALL(chunkmap) \
+	memset((chunkmap), ~0U, sizeof(chunkmap))
+
+#define SCTP_CHUNKMAP_COPY(destmap, srcmap) \
+	memcpy((destmap), (srcmap), sizeof(srcmap))
+
+#define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) \
+	__sctp_chunkmap_is_clear((chunkmap), ARRAY_SIZE(chunkmap))
+static inline bool
+__sctp_chunkmap_is_clear(const __u32 *chunkmap, unsigned int n)
+{
+	unsigned int i;
+	for (i = 0; i < n; ++i)
+		if (chunkmap[i])
+			return false;
+	return true;
+}
+
+#define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) \
+	__sctp_chunkmap_is_all_set((chunkmap), ARRAY_SIZE(chunkmap))
+static inline bool
+__sctp_chunkmap_is_all_set(const __u32 *chunkmap, unsigned int n)
+{
+	unsigned int i;
+	for (i = 0; i < n; ++i)
+		if (chunkmap[i] != ~0U)
+			return false;
+	return true;
+}
+
+#endif /* _XT_SCTP_H_ */
+