| 1 | /* Magic numbers used within secnet */ |
| 2 | |
| 3 | #ifndef magic_h |
| 4 | #define magic_h |
| 5 | |
| 6 | #define LABEL_NAK 0x00000000 |
| 7 | #define LABEL_MSG0 0x00020200 |
| 8 | #define LABEL_MSG1 0x01010101 |
| 9 | #define LABEL_MSG2 0x02020202 |
| 10 | #define LABEL_MSG3 0x03030303 |
| 11 | #define LABEL_MSG3BIS 0x13030313 |
| 12 | #define LABEL_MSG4 0x04040404 |
| 13 | #define LABEL_MSG5 0x05050505 |
| 14 | #define LABEL_MSG6 0x06060606 |
| 15 | #define LABEL_MSG7 0x07070707 |
| 16 | #define LABEL_MSG8 0x08080808 |
| 17 | #define LABEL_MSG9 0x09090909 |
| 18 | #define LABEL_PROD 0x0a0a0a0a |
| 19 | |
| 20 | /* uses of the 32-bit capability bitmap */ |
| 21 | #define CAPAB_EARLY 0x00000000 /* no Early flags yet (see NOTES) */ |
| 22 | #define CAPAB_TRANSFORM_MASK 0x0000ffff |
| 23 | /* remaining 16 bits are unused */ |
| 24 | |
| 25 | /* |
| 26 | * The transform capability mask is a set of bits, one for each |
| 27 | * transform supported. The transform capability numbers are set in |
| 28 | * the configuration (and should correspond between the two sites), |
| 29 | * although there are sensible defaults. |
| 30 | * |
| 31 | * Advertising a nonzero transform capability mask promises that |
| 32 | * the receiver understands LABEL_MSG3BIS messages, which |
| 33 | * contain an additional byte specifying the transform capability |
| 34 | * number actually chosen by the MSG3 sender. |
| 35 | * |
| 36 | * Aside from that, an empty bitmask is treated the same as |
| 37 | * 1u<<CAPAB_TRANSFORMNUM_ANCIENT |
| 38 | */ |
| 39 | |
| 40 | /* bit indices, 0 is ls bit */ |
| 41 | #define CAPAB_TRANSFORMNUM_USER_MIN 0 |
| 42 | #define CAPAB_TRANSFORMNUM_USER_MAX 7 |
| 43 | #define CAPAB_TRANSFORMNUM_SERPENT256CBC 8 |
| 44 | #define CAPAB_TRANSFORMNUM_EAXSERPENT 9 |
| 45 | #define CAPAB_TRANSFORMNUM_MAX 15 |
| 46 | |
| 47 | #define CAPAB_TRANSFORMNUM_ANCIENT CAPAB_TRANSFORMNUM_SERPENT256CBC |
| 48 | |
| 49 | #endif /* magic_h */ |