[deliverable/linux.git] / include / uapi / linux / netfilter / xt_sctp.h

#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 0;
	return 1;
}

#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 0;
	return 1;
}

#endif /* _XT_SCTP_H_ */
Commit	Line	Data
2e4e6a17 HW	1	#ifndef _XT_SCTP_H_
	2	#define _XT_SCTP_H_
	3
60c195c7 AB	4	#include <linux/types.h>
60c195c7 AB	5
2e4e6a17 HW	6	#define XT_SCTP_SRC_PORTS 0x01
	7	#define XT_SCTP_DEST_PORTS 0x02
	8	#define XT_SCTP_CHUNK_TYPES 0x04
	9
	10	#define XT_SCTP_VALID_FLAGS 0x07
	11
2e4e6a17	12	struct xt_sctp_flag_info {
60c195c7 AB	13	__u8 chunktype;
	14	__u8 flag;
	15	__u8 flag_mask;
2e4e6a17 HW	16	};
	17
	18	#define XT_NUM_SCTP_FLAGS 4
	19
	20	struct xt_sctp_info {
60c195c7 AB	21	__u16 dpts[2]; /* Min, Max */
60c195c7 AB	22	__u16 spts[2]; /* Min, Max */
2e4e6a17	23
60c195c7	24	__u32 chunkmap[256 / sizeof (__u32)]; /* Bit mask of chunks to be matched according to RFC 2960 */
2e4e6a17 HW	25
	26	#define SCTP_CHUNK_MATCH_ANY 0x01 /* Match if any of the chunk types are present */
	27	#define SCTP_CHUNK_MATCH_ALL 0x02 /* Match if all of the chunk types are present */
	28	#define SCTP_CHUNK_MATCH_ONLY 0x04 /* Match if these are the only chunk types present */
	29
60c195c7	30	__u32 chunk_match_type;
2e4e6a17 HW	31	struct xt_sctp_flag_info flag_info[XT_NUM_SCTP_FLAGS];
	32	int flag_count;
	33
60c195c7 AB	34	__u32 flags;
60c195c7 AB	35	__u32 invflags;
2e4e6a17 HW	36	};
	37
	38	#define bytes(type) (sizeof(type) * 8)
	39
	40	#define SCTP_CHUNKMAP_SET(chunkmap, type) \
	41	do { \
60c195c7 AB	42	(chunkmap)[type / bytes(__u32)] \|= \
60c195c7 AB	43	1 << (type % bytes(__u32)); \
2e4e6a17 HW	44	} while (0)
	45
	46	#define SCTP_CHUNKMAP_CLEAR(chunkmap, type) \
	47	do { \
60c195c7 AB	48	(chunkmap)[type / bytes(__u32)] &= \
60c195c7 AB	49	~(1 << (type % bytes(__u32))); \
2e4e6a17 HW	50	} while (0)
	51
	52	#define SCTP_CHUNKMAP_IS_SET(chunkmap, type) \
	53	({ \
60c195c7 AB	54	((chunkmap)[type / bytes (__u32)] & \
60c195c7 AB	55	(1 << (type % bytes (__u32)))) ? 1: 0; \
2e4e6a17 HW	56	})
2e4e6a17 HW	57
b9f61b16 JE	58	#define SCTP_CHUNKMAP_RESET(chunkmap) \
	59	memset((chunkmap), 0, sizeof(chunkmap))
	60
	61	#define SCTP_CHUNKMAP_SET_ALL(chunkmap) \
	62	memset((chunkmap), ~0U, sizeof(chunkmap))
	63
	64	#define SCTP_CHUNKMAP_COPY(destmap, srcmap) \
	65	memcpy((destmap), (srcmap), sizeof(srcmap))
	66
	67	#define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) \
	68	__sctp_chunkmap_is_clear((chunkmap), ARRAY_SIZE(chunkmap))
1ffad83d	69	static inline _Bool
60c195c7	70	__sctp_chunkmap_is_clear(const __u32 *chunkmap, unsigned int n)
b9f61b16 JE	71	{
	72	unsigned int i;
	73	for (i = 0; i < n; ++i)
	74	if (chunkmap[i])
1ffad83d MR	75	return 0;
1ffad83d MR	76	return 1;
b9f61b16 JE	77	}
	78
	79	#define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) \
	80	__sctp_chunkmap_is_all_set((chunkmap), ARRAY_SIZE(chunkmap))
1ffad83d	81	static inline _Bool
60c195c7	82	__sctp_chunkmap_is_all_set(const __u32 *chunkmap, unsigned int n)
b9f61b16 JE	83	{
	84	unsigned int i;
	85	for (i = 0; i < n; ++i)
	86	if (chunkmap[i] != ~0U)
1ffad83d MR	87	return 0;
1ffad83d MR	88	return 1;
b9f61b16	89	}
2e4e6a17 HW	90
	91	#endif /* _XT_SCTP_H_ */
	92