| The Android Open Source Project | f7fc46c | 2009-03-03 19:29:23 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Dropbear - a SSH2 server |
| 3 | * |
| 4 | * Copyright (c) 2002,2003 Matt Johnston |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to deal |
| 9 | * in the Software without restriction, including without limitation the rights |
| 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | * copies of the Software, and to permit persons to whom the Software is |
| 12 | * furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 23 | * SOFTWARE. */ |
| 24 | |
| 25 | #ifndef _ALGO_H_ |
| 26 | |
| 27 | #define _ALGO_H_ |
| 28 | |
| 29 | #include "includes.h" |
| 30 | #include "buffer.h" |
| 31 | |
| 32 | struct Algo_Type { |
| 33 | |
| 34 | unsigned char *name; /* identifying name */ |
| 35 | char val; /* a value for this cipher, or -1 for invalid */ |
| 36 | void *data; /* algorithm specific data */ |
| 37 | unsigned usable : 1; /* whether we can use this algorithm */ |
| 38 | |
| 39 | }; |
| 40 | |
| 41 | typedef struct Algo_Type algo_type; |
| 42 | |
| 43 | /* lists mapping ssh types of algorithms to internal values */ |
| 44 | extern algo_type sshkex[]; |
| 45 | extern algo_type sshhostkey[]; |
| 46 | extern algo_type sshciphers[]; |
| 47 | extern algo_type sshhashes[]; |
| 48 | extern algo_type sshcompress[]; |
| 49 | |
| 50 | extern const struct dropbear_cipher dropbear_nocipher; |
| 51 | extern const struct dropbear_hash dropbear_nohash; |
| 52 | |
| 53 | struct dropbear_cipher { |
| 54 | const struct ltc_cipher_descriptor *cipherdesc; |
| 55 | unsigned long keysize; |
| 56 | unsigned char blocksize; |
| 57 | }; |
| 58 | |
| 59 | struct dropbear_hash { |
| 60 | const struct ltc_hash_descriptor *hashdesc; |
| 61 | unsigned long keysize; |
| 62 | unsigned char hashsize; |
| 63 | }; |
| 64 | |
| 65 | void crypto_init(); |
| 66 | int have_algo(char* algo, size_t algolen, algo_type algos[]); |
| 67 | void buf_put_algolist(buffer * buf, algo_type localalgos[]); |
| 68 | |
| 69 | algo_type * svr_buf_match_algo(buffer* buf, algo_type localalgos[], |
| 70 | int *goodguess); |
| 71 | algo_type * cli_buf_match_algo(buffer* buf, algo_type localalgos[], |
| 72 | int *goodguess); |
| 73 | |
| 74 | #endif /* _ALGO_H_ */ |
