#ifndef _IPT_SCTP_H_#define _IPT_SCTP_H_#define IPT_SCTP_SRC_PORTS	        0x01#define IPT_SCTP_DEST_PORTS	        0x02#define IPT_SCTP_CHUNK_TYPES		0x04#define IPT_SCTP_VALID_FLAGS		0x07#define ELEMCOUNT(x) (sizeof(x)/sizeof(x[0]))struct ipt_sctp_flag_info {	u_int8_t chunktype;	u_int8_t flag;	u_int8_t flag_mask;};#define IPT_NUM_SCTP_FLAGS	4struct ipt_sctp_info {	u_int16_t dpts[2];  /* Min, Max */	u_int16_t spts[2];  /* Min, Max */	u_int32_t chunkmap[256 / sizeof (u_int32_t)];  /* 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 */	u_int32_t chunk_match_type;	struct ipt_sctp_flag_info flag_info[IPT_NUM_SCTP_FLAGS];	int flag_count;	u_int32_t flags;	u_int32_t invflags;};#define bytes(type) (sizeof(type) * 8)#define SCTP_CHUNKMAP_SET(chunkmap, type) 		\	do { 						\		chunkmap[type / bytes(u_int32_t)] |= 	\			1 << (type % bytes(u_int32_t));	\	} while (0)#define SCTP_CHUNKMAP_CLEAR(chunkmap, type)		 	\	do {							\		chunkmap[type / bytes(u_int32_t)] &= 		\			~(1 << (type % bytes(u_int32_t)));	\	} while (0)#define SCTP_CHUNKMAP_IS_SET(chunkmap, type) 			\({								\	(chunkmap[type / bytes (u_int32_t)] & 			\		(1 << (type % bytes (u_int32_t)))) ? 1: 0;	\})#define SCTP_CHUNKMAP_RESET(chunkmap) 				\	do {							\		int i; 						\		for (i = 0; i < ELEMCOUNT(chunkmap); i++)	\			chunkmap[i] = 0;			\	} while (0)#define SCTP_CHUNKMAP_SET_ALL(chunkmap) 			\	do {							\		int i; 						\		for (i = 0; i < ELEMCOUNT(chunkmap); i++) 	\			chunkmap[i] = ~0;			\	} while (0)#define SCTP_CHUNKMAP_COPY(destmap, srcmap) 			\	do {							\		int i; 						\		for (i = 0; i < ELEMCOUNT(chunkmap); i++) 	\			destmap[i] = srcmap[i];			\	} while (0)#define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) 		\({							\	int i; 						\	int flag = 1;					\	for (i = 0; i < ELEMCOUNT(chunkmap); i++) {	\		if (chunkmap[i]) {			\			flag = 0;			\			break;				\		}					\	}						\        flag;						\})#define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) 		\({							\	int i; 						\	int flag = 1;					\	for (i = 0; i < ELEMCOUNT(chunkmap); i++) {	\		if (chunkmap[i] != ~0) {		\			flag = 0;			\				break;			\		}					\	}						\        flag;						\})#endif /* _IPT_SCTP_H_ */