~mdw / secnet / blame
| Commit | Line | Data |
|---|---|---|
| ff05a229 | 1 | /* Magic numbers used within secnet */ |
| c215a4bc IJ |
2 | /* |
| 3 | * This file is part of secnet. | |
| 4 | * See README for full list of copyright holders. | |
| 5 | * | |
| 6 | * secnet is free software; you can redistribute it and/or modify it | |
| 7 | * under the terms of the GNU General Public License as published by | |
| 8 | * the Free Software Foundation; either version d of the License, or | |
| 9 | * (at your option) any later version. | |
| 10 | * | |
| 11 | * secnet is distributed in the hope that it will be useful, but | |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * version 3 along with secnet; if not, see | |
| 18 | * https://www.gnu.org/licenses/gpl.html. | |
| 19 | */ | |
| ff05a229 SE |
20 | |
| 21 | #ifndef magic_h | |
| 22 | #define magic_h | |
| 23 | ||
| 5b5f297f IJ |
24 | #define LABEL_NAK 0x00000000 |
| 25 | #define LABEL_MSG0 0x00020200 | |
| 26 | #define LABEL_MSG1 0x01010101 | |
| 27 | #define LABEL_MSG2 0x02020202 | |
| 28 | #define LABEL_MSG3 0x03030303 | |
| 29 | #define LABEL_MSG3BIS 0x13030313 | |
| 30 | #define LABEL_MSG4 0x04040404 | |
| 31 | #define LABEL_MSG5 0x05050505 | |
| 32 | #define LABEL_MSG6 0x06060606 | |
| 33 | #define LABEL_MSG7 0x07070707 | |
| 34 | #define LABEL_MSG8 0x08080808 | |
| 35 | #define LABEL_MSG9 0x09090909 | |
| dd9209d1 | 36 | #define LABEL_PROD 0x0a0a0a0a |
| ff05a229 | 37 | |
| 09a385fb | 38 | /* uses of the 32-bit capability bitmap */ |
| 5b5f297f IJ |
39 | #define CAPAB_EARLY 0x00000000 /* no Early flags yet (see NOTES) */ |
| 40 | #define CAPAB_TRANSFORM_MASK 0x0000ffff | |
| 41 | /* remaining 16 bits are unused */ | |
| 42 | ||
| 43 | /* | |
| 44 | * The transform capability mask is a set of bits, one for each | |
| 45 | * transform supported. The transform capability numbers are set in | |
| 46 | * the configuration (and should correspond between the two sites), | |
| 47 | * although there are sensible defaults. | |
| 48 | * | |
| 49 | * Advertising a nonzero transform capability mask promises that | |
| 50 | * the receiver understands LABEL_MSG3BIS messages, which | |
| 51 | * contain an additional byte specifying the transform capability | |
| 52 | * number actually chosen by the MSG3 sender. | |
| 53 | * | |
| 54 | * Aside from that, an empty bitmask is treated the same as | |
| 55 | * 1u<<CAPAB_TRANSFORMNUM_ANCIENT | |
| 56 | */ | |
| 57 | ||
| 58 | /* bit indices, 0 is ls bit */ | |
| 59 | #define CAPAB_TRANSFORMNUM_USER_MIN 0 | |
| 60 | #define CAPAB_TRANSFORMNUM_USER_MAX 7 | |
| 61 | #define CAPAB_TRANSFORMNUM_SERPENT256CBC 8 | |
| 62 | #define CAPAB_TRANSFORMNUM_EAXSERPENT 9 | |
| 63 | #define CAPAB_TRANSFORMNUM_MAX 15 | |
| 64 | ||
| 65 | #define CAPAB_TRANSFORMNUM_ANCIENT CAPAB_TRANSFORMNUM_SERPENT256CBC | |
| 09a385fb | 66 | |
| ff05a229 | 67 | #endif /* magic_h */ |