Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _IPT_SCTP_H_ |
| 2 | #define _IPT_SCTP_H_ |
| 3 | |
| 4 | #define IPT_SCTP_SRC_PORTS 0x01 |
| 5 | #define IPT_SCTP_DEST_PORTS 0x02 |
| 6 | #define IPT_SCTP_CHUNK_TYPES 0x04 |
| 7 | |
| 8 | #define IPT_SCTP_VALID_FLAGS 0x07 |
| 9 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | |
| 11 | struct ipt_sctp_flag_info { |
| 12 | u_int8_t chunktype; |
| 13 | u_int8_t flag; |
| 14 | u_int8_t flag_mask; |
| 15 | }; |
| 16 | |
| 17 | #define IPT_NUM_SCTP_FLAGS 4 |
| 18 | |
| 19 | struct ipt_sctp_info { |
| 20 | u_int16_t dpts[2]; /* Min, Max */ |
| 21 | u_int16_t spts[2]; /* Min, Max */ |
| 22 | |
| 23 | u_int32_t chunkmap[256 / sizeof (u_int32_t)]; /* Bit mask of chunks to be matched according to RFC 2960 */ |
| 24 | |
| 25 | #define SCTP_CHUNK_MATCH_ANY 0x01 /* Match if any of the chunk types are present */ |
| 26 | #define SCTP_CHUNK_MATCH_ALL 0x02 /* Match if all of the chunk types are present */ |
| 27 | #define SCTP_CHUNK_MATCH_ONLY 0x04 /* Match if these are the only chunk types present */ |
| 28 | |
| 29 | u_int32_t chunk_match_type; |
| 30 | struct ipt_sctp_flag_info flag_info[IPT_NUM_SCTP_FLAGS]; |
| 31 | int flag_count; |
| 32 | |
| 33 | u_int32_t flags; |
| 34 | u_int32_t invflags; |
| 35 | }; |
| 36 | |
| 37 | #define bytes(type) (sizeof(type) * 8) |
| 38 | |
| 39 | #define SCTP_CHUNKMAP_SET(chunkmap, type) \ |
| 40 | do { \ |
| 41 | chunkmap[type / bytes(u_int32_t)] |= \ |
| 42 | 1 << (type % bytes(u_int32_t)); \ |
| 43 | } while (0) |
| 44 | |
| 45 | #define SCTP_CHUNKMAP_CLEAR(chunkmap, type) \ |
| 46 | do { \ |
| 47 | chunkmap[type / bytes(u_int32_t)] &= \ |
| 48 | ~(1 << (type % bytes(u_int32_t))); \ |
| 49 | } while (0) |
| 50 | |
| 51 | #define SCTP_CHUNKMAP_IS_SET(chunkmap, type) \ |
| 52 | ({ \ |
| 53 | (chunkmap[type / bytes (u_int32_t)] & \ |
| 54 | (1 << (type % bytes (u_int32_t)))) ? 1: 0; \ |
| 55 | }) |
| 56 | |
| 57 | #define SCTP_CHUNKMAP_RESET(chunkmap) \ |
| 58 | do { \ |
| 59 | int i; \ |
Nicolas Kaiser | bd4cfb5 | 2005-11-20 21:11:31 -0800 | [diff] [blame] | 60 | for (i = 0; i < ARRAY_SIZE(chunkmap); i++) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | chunkmap[i] = 0; \ |
| 62 | } while (0) |
| 63 | |
| 64 | #define SCTP_CHUNKMAP_SET_ALL(chunkmap) \ |
| 65 | do { \ |
| 66 | int i; \ |
Nicolas Kaiser | bd4cfb5 | 2005-11-20 21:11:31 -0800 | [diff] [blame] | 67 | for (i = 0; i < ARRAY_SIZE(chunkmap); i++) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | chunkmap[i] = ~0; \ |
| 69 | } while (0) |
| 70 | |
| 71 | #define SCTP_CHUNKMAP_COPY(destmap, srcmap) \ |
| 72 | do { \ |
| 73 | int i; \ |
Nicolas Kaiser | bd4cfb5 | 2005-11-20 21:11:31 -0800 | [diff] [blame] | 74 | for (i = 0; i < ARRAY_SIZE(chunkmap); i++) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | destmap[i] = srcmap[i]; \ |
| 76 | } while (0) |
| 77 | |
| 78 | #define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) \ |
| 79 | ({ \ |
| 80 | int i; \ |
| 81 | int flag = 1; \ |
Nicolas Kaiser | bd4cfb5 | 2005-11-20 21:11:31 -0800 | [diff] [blame] | 82 | for (i = 0; i < ARRAY_SIZE(chunkmap); i++) { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | if (chunkmap[i]) { \ |
| 84 | flag = 0; \ |
| 85 | break; \ |
| 86 | } \ |
| 87 | } \ |
| 88 | flag; \ |
| 89 | }) |
| 90 | |
| 91 | #define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) \ |
| 92 | ({ \ |
| 93 | int i; \ |
| 94 | int flag = 1; \ |
Nicolas Kaiser | bd4cfb5 | 2005-11-20 21:11:31 -0800 | [diff] [blame] | 95 | for (i = 0; i < ARRAY_SIZE(chunkmap); i++) { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | if (chunkmap[i] != ~0) { \ |
| 97 | flag = 0; \ |
| 98 | break; \ |
| 99 | } \ |
| 100 | } \ |
| 101 | flag; \ |
| 102 | }) |
| 103 | |
| 104 | #endif /* _IPT_SCTP_H_ */ |
| 105 | |