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oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

xt_sctp.h (2329B)

    

  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. #ifndef _XT_SCTP_H_
  3. #define _XT_SCTP_H_
  5. #include <linux/types.h>
  7. #define XT_SCTP_SRC_PORTS	        0x01
  8. #define XT_SCTP_DEST_PORTS	        0x02
  9. #define XT_SCTP_CHUNK_TYPES		0x04
  11. #define XT_SCTP_VALID_FLAGS		0x07
  13. struct xt_sctp_flag_info {
  14. 	__u8 chunktype;
  15. 	__u8 flag;
  16. 	__u8 flag_mask;
  17. };
  19. #define XT_NUM_SCTP_FLAGS	4
  21. struct xt_sctp_info {
  22. 	__u16 dpts[2];  /* Min, Max */
  23. 	__u16 spts[2];  /* Min, Max */
  25. 	__u32 chunkmap[256 / sizeof (__u32)];  /* Bit mask of chunks to be matched according to RFC 2960 */
  27. #define SCTP_CHUNK_MATCH_ANY   0x01  /* Match if any of the chunk types are present */
  28. #define SCTP_CHUNK_MATCH_ALL   0x02  /* Match if all of the chunk types are present */
  29. #define SCTP_CHUNK_MATCH_ONLY  0x04  /* Match if these are the only chunk types present */
  31. 	__u32 chunk_match_type;
  32. 	struct xt_sctp_flag_info flag_info[XT_NUM_SCTP_FLAGS];
  33. 	int flag_count;
  35. 	__u32 flags;
  36. 	__u32 invflags;
  37. };
  39. #define bytes(type) (sizeof(type) * 8)
  41. #define SCTP_CHUNKMAP_SET(chunkmap, type) 		\
  42. 	do { 						\
  43. 		(chunkmap)[type / bytes(__u32)] |= 	\
  44. 			1u << (type % bytes(__u32));	\
  45. 	} while (0)
  47. #define SCTP_CHUNKMAP_CLEAR(chunkmap, type)		 	\
  48. 	do {							\
  49. 		(chunkmap)[type / bytes(__u32)] &= 		\
  50. 			~(1u << (type % bytes(__u32)));	\
  51. 	} while (0)
  53. #define SCTP_CHUNKMAP_IS_SET(chunkmap, type) 			\
  54. ({								\
  55. 	((chunkmap)[type / bytes (__u32)] & 		\
  56. 		(1u << (type % bytes (__u32)))) ? 1: 0;	\
  57. })
  59. #define SCTP_CHUNKMAP_RESET(chunkmap) \
  60. 	memset((chunkmap), 0, sizeof(chunkmap))
  62. #define SCTP_CHUNKMAP_SET_ALL(chunkmap) \
  63. 	memset((chunkmap), ~0U, sizeof(chunkmap))
  65. #define SCTP_CHUNKMAP_COPY(destmap, srcmap) \
  66. 	memcpy((destmap), (srcmap), sizeof(srcmap))
  68. #define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) \
  69. 	__sctp_chunkmap_is_clear((chunkmap), ARRAY_SIZE(chunkmap))
  70. static __inline__ _Bool
  71. __sctp_chunkmap_is_clear(const __u32 *chunkmap, unsigned int n)
  72. {
  73. 	unsigned int i;
  74. 	for (i = 0; i < n; ++i)
  75. 		if (chunkmap[i])
  76. 			return 0;
  77. 	return 1;
  78. }
  80. #define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) \
  81. 	__sctp_chunkmap_is_all_set((chunkmap), ARRAY_SIZE(chunkmap))
  82. static __inline__ _Bool
  83. __sctp_chunkmap_is_all_set(const __u32 *chunkmap, unsigned int n)
  84. {
  85. 	unsigned int i;
  86. 	for (i = 0; i < n; ++i)
  87. 		if (chunkmap[i] != ~0U)
  88. 			return 0;
  89. 	return 1;
  90. }
  92. #endif /* _XT_SCTP_H_ */