projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 2e4e6a17 HW |
1 | #ifndef _XT_SCTP_H_ |
| 2 | #define _XT_SCTP_H_ | |
| 3 | ||
| 4 | #define XT_SCTP_SRC_PORTS 0x01 | |
| 5 | #define XT_SCTP_DEST_PORTS 0x02 | |
| 6 | #define XT_SCTP_CHUNK_TYPES 0x04 | |
| 7 | ||
| 8 | #define XT_SCTP_VALID_FLAGS 0x07 | |
| 9 | ||
| 10 | #define ELEMCOUNT(x) (sizeof(x)/sizeof(x[0])) | |
| 11 | ||
| 12 | ||
| 13 | struct xt_sctp_flag_info { | |
| 14 | u_int8_t chunktype; | |
| 15 | u_int8_t flag; | |
| 16 | u_int8_t flag_mask; | |
| 17 | }; | |
| 18 | ||
| 19 | #define XT_NUM_SCTP_FLAGS 4 | |
| 20 | ||
| 21 | struct xt_sctp_info { | |
| 22 | u_int16_t dpts[2]; /* Min, Max */ | |
| 23 | u_int16_t spts[2]; /* Min, Max */ | |
| 24 | ||
| 25 | u_int32_t chunkmap[256 / sizeof (u_int32_t)]; /* Bit mask of chunks to be matched according to RFC 2960 */ | |
| 26 | ||
| 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 */ | |
| 30 | ||
| 31 | u_int32_t chunk_match_type; | |
| 32 | struct xt_sctp_flag_info flag_info[XT_NUM_SCTP_FLAGS]; | |
| 33 | int flag_count; | |
| 34 | ||
| 35 | u_int32_t flags; | |
| 36 | u_int32_t invflags; | |
| 37 | }; | |
| 38 | ||
| 39 | #define bytes(type) (sizeof(type) * 8) | |
| 40 | ||
| 41 | #define SCTP_CHUNKMAP_SET(chunkmap, type) \ | |
| 42 | do { \ | |
| 43 | chunkmap[type / bytes(u_int32_t)] |= \ | |
| 44 | 1 << (type % bytes(u_int32_t)); \ | |
| 45 | } while (0) | |
| 46 | ||
| 47 | #define SCTP_CHUNKMAP_CLEAR(chunkmap, type) \ | |
| 48 | do { \ | |
| 49 | chunkmap[type / bytes(u_int32_t)] &= \ | |
| 50 | ~(1 << (type % bytes(u_int32_t))); \ | |
| 51 | } while (0) | |
| 52 | ||
| 53 | #define SCTP_CHUNKMAP_IS_SET(chunkmap, type) \ | |
| 54 | ({ \ | |
| 55 | (chunkmap[type / bytes (u_int32_t)] & \ | |
| 56 | (1 << (type % bytes (u_int32_t)))) ? 1: 0; \ | |
| 57 | }) | |
| 58 | ||
| 59 | #define SCTP_CHUNKMAP_RESET(chunkmap) \ | |
| 60 | do { \ | |
| 61 | int i; \ | |
| 62 | for (i = 0; i < ELEMCOUNT(chunkmap); i++) \ | |
| 63 | chunkmap[i] = 0; \ | |
| 64 | } while (0) | |
| 65 | ||
| 66 | #define SCTP_CHUNKMAP_SET_ALL(chunkmap) \ | |
| 67 | do { \ | |
| 68 | int i; \ | |
| 69 | for (i = 0; i < ELEMCOUNT(chunkmap); i++) \ | |
| 70 | chunkmap[i] = ~0; \ | |
| 71 | } while (0) | |
| 72 | ||
| 73 | #define SCTP_CHUNKMAP_COPY(destmap, srcmap) \ | |
| 74 | do { \ | |
| 75 | int i; \ | |
| 76 | for (i = 0; i < ELEMCOUNT(chunkmap); i++) \ | |
| 77 | destmap[i] = srcmap[i]; \ | |
| 78 | } while (0) | |
| 79 | ||
| 80 | #define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) \ | |
| 81 | ({ \ | |
| 82 | int i; \ | |
| 83 | int flag = 1; \ | |
| 84 | for (i = 0; i < ELEMCOUNT(chunkmap); i++) { \ | |
| 85 | if (chunkmap[i]) { \ | |
| 86 | flag = 0; \ | |
| 87 | break; \ | |
| 88 | } \ | |
| 89 | } \ | |
| 90 | flag; \ | |
| 91 | }) | |
| 92 | ||
| 93 | #define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) \ | |
| 94 | ({ \ | |
| 95 | int i; \ | |
| 96 | int flag = 1; \ | |
| 97 | for (i = 0; i < ELEMCOUNT(chunkmap); i++) { \ | |
| 98 | if (chunkmap[i] != ~0) { \ | |
| 99 | flag = 0; \ | |
| 100 | break; \ | |
| 101 | } \ | |
| 102 | } \ | |
| 103 | flag; \ | |
| 104 | }) | |
| 105 | ||
| 106 | #endif /* _XT_SCTP_H_ */ | |
| 107 |