dropbear: common-algo.c annotate

annotate common-algo.c @ 1437:871b18fd7065 fuzz

merge from main (libtommath/libtomcrypt/curve25510-donna updates)

author	Matt Johnston <matt@ucc.asn.au>
date	Sat, 24 Jun 2017 22:51:45 +0800
parents	2c9dac2d6707
children	06d52bcb8094

rev	line source
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /*
74 e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	2 * Dropbear SSH
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * Copyright (c) 2002,2003 Matt Johnston
74 e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	5 * Copyright (c) 2004 by Mihnea Stoenescu
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 * All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 * Permission is hereby granted, free of charge, to any person obtaining a copy
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * of this software and associated documentation files (the "Software"), to deal
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 * in the Software without restriction, including without limitation the rights
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 * copies of the Software, and to permit persons to whom the Software is
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 * furnished to do so, subject to the following conditions:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 * The above copyright notice and this permission notice shall be included in
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 * all copies or substantial portions of the Software.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 * SOFTWARE. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	26 #include "includes.h"
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 #include "algo.h"
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	28 #include "session.h"
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #include "dbutil.h"
1224 82e2037d34ea Move dh group constants to a separate file Matt Johnston <matt@ucc.asn.au> parents: 1204 diff changeset	30 #include "dh_groups.h"
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	31 #include "ltc_prng.h"
ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	32 #include "ecc.h"
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 /* This file (algo.c) organises the ciphers which can be used, and is used to
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 * decide which ciphers/hashes/compression/signing to use during key exchange*/
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	37 static int void_cipher(const unsigned char* in, unsigned char* out,
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	38 unsigned long len, void* UNUSED(cipher_state)) {
543 e12c9225acbd - Don't memcpy() in place with void_encrypt Matt Johnston <matt@ucc.asn.au> parents: 503 diff changeset	39 if (in != out) {
e12c9225acbd - Don't memcpy() in place with void_encrypt Matt Johnston <matt@ucc.asn.au> parents: 503 diff changeset	40 memmove(out, in, len);
e12c9225acbd - Don't memcpy() in place with void_encrypt Matt Johnston <matt@ucc.asn.au> parents: 503 diff changeset	41 }
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	42 return CRYPT_OK;
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	43 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	44
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	45 static int void_start(int UNUSED(cipher), const unsigned char* UNUSED(IV),
ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	46 const unsigned char* UNUSED(key),
ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	47 int UNUSED(keylen), int UNUSED(num_rounds), void* UNUSED(cipher_state)) {
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	48 return CRYPT_OK;
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	49 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	50
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 /* Mappings for ciphers, parameters are
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 {&cipher_desc, keysize, blocksize} */
715 cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 686 diff changeset	53
cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 686 diff changeset	54 /* Remember to add new ciphers/hashes to regciphers/reghashes too */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	56 #if DROPBEAR_AES256
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	57 static const struct dropbear_cipher dropbear_aes256 =
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	58 {&aes_desc, 32, 16};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	59 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	60 #if DROPBEAR_AES128
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	61 static const struct dropbear_cipher dropbear_aes128 =
150 82fcf3185616 Cleaning out various dead wood found with -dead_strip Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	62 {&aes_desc, 16, 16};
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	64 #if DROPBEAR_BLOWFISH
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	65 static const struct dropbear_cipher dropbear_blowfish =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 {&blowfish_desc, 16, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	68 #if DROPBEAR_TWOFISH256
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	69 static const struct dropbear_cipher dropbear_twofish256 =
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	70 {&twofish_desc, 32, 16};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	71 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	72 #if DROPBEAR_TWOFISH128
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	73 static const struct dropbear_cipher dropbear_twofish128 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 {&twofish_desc, 16, 16};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	76 #if DROPBEAR_3DES
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	77 static const struct dropbear_cipher dropbear_3des =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 {&des3_desc, 24, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 /* used to indicate no encryption, as defined in rfc2410 */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 const struct dropbear_cipher dropbear_nocipher =
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 {NULL, 16, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	85 /* A few void* s are required to silence warnings
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	86 * about the symmetric_CBC vs symmetric_CTR cipher_state pointer */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	87 #if DROPBEAR_ENABLE_CBC_MODE
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	88 const struct dropbear_cipher_mode dropbear_mode_cbc =
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	89 {(void)cbc_start, (void)cbc_encrypt, (void*)cbc_decrypt};
1038 d3925ed45a85 Fix for old compilers, variable declarations at beginning of functions Thorsten Horstmann <thorsten.horstmann@web.de> parents: 1019 diff changeset	90 #endif /* DROPBEAR_ENABLE_CBC_MODE */
992 731f624af902 Add config option to disable cbc. Disable twofish by default Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	91
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	92 const struct dropbear_cipher_mode dropbear_mode_none =
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	93 {void_start, void_cipher, void_cipher};
992 731f624af902 Add config option to disable cbc. Disable twofish by default Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	94
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	95 #if DROPBEAR_ENABLE_CTR_MODE
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	96 /* a wrapper to make ctr_start and cbc_start look the same */
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	97 static int dropbear_big_endian_ctr_start(int cipher,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	98 const unsigned char *IV,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	99 const unsigned char *key, int keylen,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	100 int num_rounds, symmetric_CTR *ctr) {
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	101 return ctr_start(cipher, IV, key, keylen, num_rounds, CTR_COUNTER_BIG_ENDIAN, ctr);
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	102 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	103 const struct dropbear_cipher_mode dropbear_mode_ctr =
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	104 {(void)dropbear_big_endian_ctr_start, (void)ctr_encrypt, (void*)ctr_decrypt};
1038 d3925ed45a85 Fix for old compilers, variable declarations at beginning of functions Thorsten Horstmann <thorsten.horstmann@web.de> parents: 1019 diff changeset	105 #endif /* DROPBEAR_ENABLE_CTR_MODE */
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	106
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 /* Mapping of ssh hashes to libtomcrypt hashes, including keysize etc.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 {&hash_desc, keysize, hashsize} */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	110 #if DROPBEAR_SHA1_HMAC
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	111 static const struct dropbear_hash dropbear_sha1 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 {&sha1_desc, 20, 20};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	114 #if DROPBEAR_SHA1_96_HMAC
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	115 static const struct dropbear_hash dropbear_sha1_96 =
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	116 {&sha1_desc, 20, 12};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	117 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	118 #if DROPBEAR_SHA2_256_HMAC
679 03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	119 static const struct dropbear_hash dropbear_sha2_256 =
03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	120 {&sha256_desc, 32, 32};
03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	121 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	122 #if DROPBEAR_SHA2_512_HMAC
679 03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	123 static const struct dropbear_hash dropbear_sha2_512 =
03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	124 {&sha512_desc, 64, 64};
03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	125 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	126 #if DROPBEAR_MD5_HMAC
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	127 static const struct dropbear_hash dropbear_md5 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 {&md5_desc, 16, 16};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 const struct dropbear_hash dropbear_nohash =
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 {NULL, 16, 0}; /* used initially */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	135 /* The following map ssh names to internal values.
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	136 * The ordering here is important for the client - the first mode
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	137 * that is also supported by the server will get used. */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 algo_type sshciphers[] = {
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	140 #if DROPBEAR_ENABLE_CTR_MODE
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	141 #if DROPBEAR_AES128
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	142 {"aes128-ctr", 0, &dropbear_aes128, 1, &dropbear_mode_ctr},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	143 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	144 #if DROPBEAR_AES256
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	145 {"aes256-ctr", 0, &dropbear_aes256, 1, &dropbear_mode_ctr},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	146 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	147 #if DROPBEAR_TWOFISH_CTR
1087 1e486f368ec3 Disable twofish-ctr by default, add config option Matt Johnston <matt@ucc.asn.au> parents: 1038 diff changeset	148 /* twofish ctr is conditional as it hasn't been tested for interoperability, see options.h */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	149 #if DROPBEAR_TWOFISH256
1012 ffd2359564b0 twofish ctr modes Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	150 {"twofish256-ctr", 0, &dropbear_twofish256, 1, &dropbear_mode_ctr},
ffd2359564b0 twofish ctr modes Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	151 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	152 #if DROPBEAR_TWOFISH128
1012 ffd2359564b0 twofish ctr modes Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	153 {"twofish128-ctr", 0, &dropbear_twofish128, 1, &dropbear_mode_ctr},
ffd2359564b0 twofish ctr modes Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	154 #endif
1087 1e486f368ec3 Disable twofish-ctr by default, add config option Matt Johnston <matt@ucc.asn.au> parents: 1038 diff changeset	155 #endif /* DROPBEAR_TWOFISH_CTR */
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	156 #endif /* DROPBEAR_ENABLE_CTR_MODE */
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	157
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	158 #if DROPBEAR_ENABLE_CBC_MODE
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	159 #if DROPBEAR_AES128
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	160 {"aes128-cbc", 0, &dropbear_aes128, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	161 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	162 #if DROPBEAR_AES256
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	163 {"aes256-cbc", 0, &dropbear_aes256, 1, &dropbear_mode_cbc},
235 c3dbd3e1a8ce Change the preferred algorithm order Matt Johnston <matt@ucc.asn.au> parents: 234 diff changeset	164 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	165 #if DROPBEAR_TWOFISH256
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	166 {"twofish256-cbc", 0, &dropbear_twofish256, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	167 {"twofish-cbc", 0, &dropbear_twofish256, 1, &dropbear_mode_cbc},
235 c3dbd3e1a8ce Change the preferred algorithm order Matt Johnston <matt@ucc.asn.au> parents: 234 diff changeset	168 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	169 #if DROPBEAR_TWOFISH128
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	170 {"twofish128-cbc", 0, &dropbear_twofish128, 1, &dropbear_mode_cbc},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	172 #if DROPBEAR_3DES
994 5c5ade336926 Prefer stronger algorithms in algorithm negotiation. Fedor Brunner <fedor.brunner@azet.sk> parents: 992 diff changeset	173 {"3des-ctr", 0, &dropbear_3des, 1, &dropbear_mode_ctr},
5c5ade336926 Prefer stronger algorithms in algorithm negotiation. Fedor Brunner <fedor.brunner@azet.sk> parents: 992 diff changeset	174 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	175 #if DROPBEAR_3DES
994 5c5ade336926 Prefer stronger algorithms in algorithm negotiation. Fedor Brunner <fedor.brunner@azet.sk> parents: 992 diff changeset	176 {"3des-cbc", 0, &dropbear_3des, 1, &dropbear_mode_cbc},
5c5ade336926 Prefer stronger algorithms in algorithm negotiation. Fedor Brunner <fedor.brunner@azet.sk> parents: 992 diff changeset	177 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	178 #if DROPBEAR_BLOWFISH
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	179 {"blowfish-cbc", 0, &dropbear_blowfish, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	180 #endif
992 731f624af902 Add config option to disable cbc. Disable twofish by default Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	181 #endif /* DROPBEAR_ENABLE_CBC_MODE */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	182 #if DROPBEAR_NONE_CIPHER
512 0129fd8ccc71 Update nocrypto branch to current head Matt Johnston <matt@ucc.asn.au> parents: 511 diff changeset	183 {"none", 0, (void*)&dropbear_nocipher, 1, &dropbear_mode_none},
252 29afa62b5450 - a hack for grahame to run dropbear with "none" cipher. Matt Johnston <matt@ucc.asn.au> parents: 238 diff changeset	184 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	185 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188 algo_type sshhashes[] = {
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	189 #if DROPBEAR_SHA1_96_HMAC
1017 a37f8730eb0f Keep sha1 default Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	190 {"hmac-sha1-96", 0, &dropbear_sha1_96, 1, NULL},
a37f8730eb0f Keep sha1 default Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	191 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	192 #if DROPBEAR_SHA1_HMAC
1017 a37f8730eb0f Keep sha1 default Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	193 {"hmac-sha1", 0, &dropbear_sha1, 1, NULL},
a37f8730eb0f Keep sha1 default Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	194 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	195 #if DROPBEAR_SHA2_256_HMAC
715 cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 686 diff changeset	196 {"hmac-sha2-256", 0, &dropbear_sha2_256, 1, NULL},
679 03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	197 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	198 #if DROPBEAR_SHA2_512_HMAC
715 cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 686 diff changeset	199 {"hmac-sha2-512", 0, &dropbear_sha2_512, 1, NULL},
679 03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	200 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	201 #if DROPBEAR_MD5_HMAC
681 a4b7627b3157 Update insecure-nocrypto to current head Matt Johnston <matt@ucc.asn.au> parents: 679 512 diff changeset	202 {"hmac-md5", 0, (void*)&dropbear_md5, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	204 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 #ifndef DISABLE_ZLIB
575 f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	208 algo_type ssh_compress[] = {
994 5c5ade336926 Prefer stronger algorithms in algorithm negotiation. Fedor Brunner <fedor.brunner@azet.sk> parents: 992 diff changeset	209 {"[email protected]", DROPBEAR_COMP_ZLIB_DELAY, NULL, 1, NULL},
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	210 {"zlib", DROPBEAR_COMP_ZLIB, NULL, 1, NULL},
575 f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	211 {"none", DROPBEAR_COMP_NONE, NULL, 1, NULL},
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	212 {NULL, 0, NULL, 0, NULL}
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	213 };
996 47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	214
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	215 algo_type ssh_delaycompress[] = {
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	216 {"[email protected]", DROPBEAR_COMP_ZLIB_DELAY, NULL, 1, NULL},
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	217 {"none", DROPBEAR_COMP_NONE, NULL, 1, NULL},
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	218 {NULL, 0, NULL, 0, NULL}
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	219 };
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 #endif
575 f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	221
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	222 algo_type ssh_nocompress[] = {
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	223 {"none", DROPBEAR_COMP_NONE, NULL, 1, NULL},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	224 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 algo_type sshhostkey[] = {
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	228 #if DROPBEAR_ECDSA
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	229 #if DROPBEAR_ECC_256
795 7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	230 {"ecdsa-sha2-nistp256", DROPBEAR_SIGNKEY_ECDSA_NISTP256, NULL, 1, NULL},
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	231 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	232 #if DROPBEAR_ECC_384
795 7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	233 {"ecdsa-sha2-nistp384", DROPBEAR_SIGNKEY_ECDSA_NISTP384, NULL, 1, NULL},
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	234 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	235 #if DROPBEAR_ECC_521
795 7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	236 {"ecdsa-sha2-nistp521", DROPBEAR_SIGNKEY_ECDSA_NISTP521, NULL, 1, NULL},
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	237 #endif
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	238 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	239 #if DROPBEAR_RSA
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	240 {"ssh-rsa", DROPBEAR_SIGNKEY_RSA, NULL, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	242 #if DROPBEAR_DSS
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	243 {"ssh-dss", DROPBEAR_SIGNKEY_DSS, NULL, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	245 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	248 #if DROPBEAR_DH_GROUP1
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	249 static const struct dropbear_kex kex_dh_group1 = {DROPBEAR_KEX_NORMAL_DH, dh_p_1, DH_P_1_LEN, NULL, &sha1_desc };
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	250 #endif
1294 56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	251 #if DROPBEAR_DH_GROUP14_SHA1
1204 d2f9ef67af15 diffie-hellman-group14-sha256 Matt Johnston <matt@ucc.asn.au> parents: 1124 diff changeset	252 static const struct dropbear_kex kex_dh_group14_sha1 = {DROPBEAR_KEX_NORMAL_DH, dh_p_14, DH_P_14_LEN, NULL, &sha1_desc };
1294 56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	253 #endif
56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	254 #if DROPBEAR_DH_GROUP14_SHA256
1204 d2f9ef67af15 diffie-hellman-group14-sha256 Matt Johnston <matt@ucc.asn.au> parents: 1124 diff changeset	255 static const struct dropbear_kex kex_dh_group14_sha256 = {DROPBEAR_KEX_NORMAL_DH, dh_p_14, DH_P_14_LEN, NULL, &sha256_desc };
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	256 #endif
739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	257 #if DROPBEAR_DH_GROUP16
739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	258 static const struct dropbear_kex kex_dh_group16_sha512 = {DROPBEAR_KEX_NORMAL_DH, dh_p_16, DH_P_16_LEN, NULL, &sha512_desc };
1225 6a7938ba004a add dh group15 and group16, disabled by default Matt Johnston <matt@ucc.asn.au> parents: 1224 diff changeset	259 #endif
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	260
852 7540c0822374 Various cleanups and fixes for warnings Matt Johnston <matt@ucc.asn.au> parents: 848 diff changeset	261 /* These can't be const since dropbear_ecc_fill_dp() fills out
7540c0822374 Various cleanups and fixes for warnings Matt Johnston <matt@ucc.asn.au> parents: 848 diff changeset	262 ecc_curve at runtime */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	263 #if DROPBEAR_ECDH
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	264 #if DROPBEAR_ECC_256
1273 139935236c72 const variables Francois Perrad <francois.perrad@gadz.org> parents: 1248 diff changeset	265 static const struct dropbear_kex kex_ecdh_nistp256 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp256, &sha256_desc };
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	266 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	267 #if DROPBEAR_ECC_384
1273 139935236c72 const variables Francois Perrad <francois.perrad@gadz.org> parents: 1248 diff changeset	268 static const struct dropbear_kex kex_ecdh_nistp384 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp384, &sha384_desc };
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	269 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	270 #if DROPBEAR_ECC_521
1273 139935236c72 const variables Francois Perrad <francois.perrad@gadz.org> parents: 1248 diff changeset	271 static const struct dropbear_kex kex_ecdh_nistp521 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp521, &sha512_desc };
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	272 #endif
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	273 #endif /* DROPBEAR_ECDH */
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	274
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	275 #if DROPBEAR_CURVE25519
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	276 /* Referred to directly */
852 7540c0822374 Various cleanups and fixes for warnings Matt Johnston <matt@ucc.asn.au> parents: 848 diff changeset	277 static const struct dropbear_kex kex_curve25519 = {DROPBEAR_KEX_CURVE25519, NULL, 0, NULL, &sha256_desc };
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	278 #endif
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	279
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 algo_type sshkex[] = {
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	281 #if DROPBEAR_CURVE25519
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	282 {"[email protected]", 0, &kex_curve25519, 1, NULL},
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	283 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	284 #if DROPBEAR_ECDH
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	285 #if DROPBEAR_ECC_521
840 5128e525c8fa Default to some larger key sizes Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	286 {"ecdh-sha2-nistp521", 0, &kex_ecdh_nistp521, 1, NULL},
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	287 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	288 #if DROPBEAR_ECC_384
762 a78a38e402d1 - Fix various hardcoded uses of SHA1 Matt Johnston <matt@ucc.asn.au> parents: 761 diff changeset	289 {"ecdh-sha2-nistp384", 0, &kex_ecdh_nistp384, 1, NULL},
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	290 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	291 #if DROPBEAR_ECC_256
840 5128e525c8fa Default to some larger key sizes Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	292 {"ecdh-sha2-nistp256", 0, &kex_ecdh_nistp256, 1, NULL},
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	293 #endif
bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	294 #endif
1294 56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	295 #if DROPBEAR_DH_GROUP14_SHA1
56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	296 {"diffie-hellman-group14-sha1", 0, &kex_dh_group14_sha1, 1, NULL},
56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	297 #endif
56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	298 #if DROPBEAR_DH_GROUP14_SHA256
1204 d2f9ef67af15 diffie-hellman-group14-sha256 Matt Johnston <matt@ucc.asn.au> parents: 1124 diff changeset	299 {"diffie-hellman-group14-sha256", 0, &kex_dh_group14_sha256, 1, NULL},
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	300 #endif
739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	301 #if DROPBEAR_DH_GROUP1
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	302 {"diffie-hellman-group1-sha1", 0, &kex_dh_group1, 1, NULL},
1225 6a7938ba004a add dh group15 and group16, disabled by default Matt Johnston <matt@ucc.asn.au> parents: 1224 diff changeset	303 #endif
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	304 #if DROPBEAR_DH_GROUP16
739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	305 {"diffie-hellman-group16-sha512", 0, &kex_dh_group16_sha512, 1, NULL},
1225 6a7938ba004a add dh group15 and group16, disabled by default Matt Johnston <matt@ucc.asn.au> parents: 1224 diff changeset	306 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	307 #if DROPBEAR_KEXGUESS2
740 3062da90dab8 Add kexguess2 behaviour Matt Johnston <matt@ucc.asn.au> parents: 715 diff changeset	308 {KEXGUESS2_ALGO_NAME, KEXGUESS2_ALGO_ID, NULL, 1, NULL},
746 465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	309 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	310 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	311 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	312
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	313 /* algolen specifies the length of algo, algos is our local list to match
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314 * against.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315 * Returns DROPBEAR_SUCCESS if we have a match for algo, DROPBEAR_FAILURE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	316 * otherwise */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317 int have_algo(char* algo, size_t algolen, algo_type algos[]) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	318
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	321 for (i = 0; algos[i].name != NULL; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322 if (strlen(algos[i].name) == algolen
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	323 && (strncmp(algos[i].name, algo, algolen) == 0)) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	324 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	327
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	330
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	331 /* Output a comma separated list of algorithms to a buffer */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	332 void buf_put_algolist(buffer * buf, algo_type localalgos[]) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	333
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	334 unsigned int i, len;
e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	335 unsigned int donefirst = 0;
e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	336 buffer *algolist = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	337
1225 6a7938ba004a add dh group15 and group16, disabled by default Matt Johnston <matt@ucc.asn.au> parents: 1224 diff changeset	338 algolist = buf_new(300);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	339 for (i = 0; localalgos[i].name != NULL; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	340 if (localalgos[i].usable) {
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	341 if (donefirst)
e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	342 buf_putbyte(algolist, ',');
e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	343 donefirst = 1;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	344 len = strlen(localalgos[i].name);
1106 2052b53d3034 Turn Algo_Type's name attribute into const char * Gaël PORTAY <gael.portay@gmail.com> parents: 1094 diff changeset	345 buf_putbytes(algolist, (const unsigned char *) localalgos[i].name, len);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	346 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	347 }
1122 aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings Matt Johnston <matt@ucc.asn.au> parents: 1087 1106 diff changeset	348 buf_putstring(buf, (const char*)algolist->data, algolist->len);
1294 56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	349 TRACE(("algolist add '%*s'", algolist->len, algolist->data))
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	350 buf_free(algolist);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	351 }
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	352
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	353 /* match the first algorithm in the comma-separated list in buf which is
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	354 * also in localalgos[], or return NULL on failure.
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	355 * (*goodguess) is set to 1 if the preferred client/server algos match,
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	356 * 0 otherwise. This is used for checking if the kexalgo/hostkeyalgos are
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	357 * guessed correctly */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	358 algo_type * buf_match_algo(buffer* buf, algo_type localalgos[],
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	359 enum kexguess2_used kexguess2, int goodguess)
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	360 {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	361
1094 c45d65392c1a Fix pointer differ in signess warnings [-Werror=pointer-sign] Gaël PORTAY <gael.portay@gmail.com> parents: 1038 diff changeset	362 char * algolist = NULL;
c45d65392c1a Fix pointer differ in signess warnings [-Werror=pointer-sign] Gaël PORTAY <gael.portay@gmail.com> parents: 1038 diff changeset	363 const char remotenames[MAX_PROPOSED_ALGO], localnames[MAX_PROPOSED_ALGO];
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	364 unsigned int len;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	365 unsigned int remotecount, localcount, clicount, servcount, i, j;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	366 algo_type * ret = NULL;
1094 c45d65392c1a Fix pointer differ in signess warnings [-Werror=pointer-sign] Gaël PORTAY <gael.portay@gmail.com> parents: 1038 diff changeset	367 const char clinames, servnames;
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	368
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	369 if (goodguess) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	370 *goodguess = 0;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	371 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	372
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	373 /* get the comma-separated list from the buffer ie "algo1,algo2,algo3" */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	374 algolist = buf_getstring(buf, &len);
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	375 TRACE(("buf_match_algo: %s", algolist))
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	376 if (len > MAX_PROPOSED_ALGO*(MAX_NAME_LEN+1)) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	377 goto out;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	378 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	379
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	380 /* remotenames will contain a list of the strings parsed out */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	381 /* We will have at least one string (even if it's just "") */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	382 remotenames[0] = algolist;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	383 remotecount = 1;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	384 for (i = 0; i < len; i++) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	385 if (algolist[i] == '\0') {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	386 /* someone is trying something strange */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	387 goto out;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	388 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	389 if (algolist[i] == ',') {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	390 algolist[i] = '\0';
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	391 remotenames[remotecount] = &algolist[i+1];
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	392 remotecount++;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	393 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	394 if (remotecount >= MAX_PROPOSED_ALGO) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	395 break;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	396 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	397 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	398 if (kexguess2 && *kexguess2 == KEXGUESS2_LOOK) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	399 for (i = 0; i < remotecount; i++)
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	400 {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	401 if (strcmp(remotenames[i], KEXGUESS2_ALGO_NAME) == 0) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	402 *kexguess2 = KEXGUESS2_YES;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	403 break;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	404 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	405 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	406 if (*kexguess2 == KEXGUESS2_LOOK) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	407 *kexguess2 = KEXGUESS2_NO;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	408 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	409 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	410
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	411 for (i = 0; localalgos[i].name != NULL; i++) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	412 if (localalgos[i].usable) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	413 localnames[i] = localalgos[i].name;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	414 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	415 localnames[i] = NULL;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	416 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	417 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	418 localcount = i;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	419
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	420 if (IS_DROPBEAR_SERVER) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	421 clinames = remotenames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	422 clicount = remotecount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	423 servnames = localnames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	424 servcount = localcount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	425 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	426 clinames = localnames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	427 clicount = localcount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	428 servnames = remotenames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	429 servcount = remotecount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	430 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	431
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	432 /* iterate and find the first match */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	433 for (i = 0; i < clicount; i++) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	434 for (j = 0; j < servcount; j++) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	435 if (!(servnames[j] && clinames[i])) {
857 c19acba28590 use oldstyle comments Matt Johnston <matt@ucc.asn.au> parents: 852 diff changeset	436 /* unusable algos are NULL */
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	437 continue;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	438 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	439 if (strcmp(servnames[j], clinames[i]) == 0) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	440 /* set if it was a good guess */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	441 if (goodguess && kexguess2) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	442 if (*kexguess2 == KEXGUESS2_YES) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	443 if (i == 0) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	444 *goodguess = 1;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	445 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	446
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	447 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	448 if (i == 0 && j == 0) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	449 *goodguess = 1;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	450 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	451 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	452 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	453 /* set the algo to return */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	454 if (IS_DROPBEAR_SERVER) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	455 ret = &localalgos[j];
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	456 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	457 ret = &localalgos[i];
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	458 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	459 goto out;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	460 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	461 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	462 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	463
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	464 out:
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	465 m_free(algolist);
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	466 return ret;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	467 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	468
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	469 #if DROPBEAR_NONE_CIPHER
686 983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	470
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	471 void
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	472 set_algo_usable(algo_type algos[], const char * algo_name, int usable)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	473 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	474 algo_type *a;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	475 for (a = algos; a->name != NULL; a++)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	476 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	477 if (strcmp(a->name, algo_name) == 0)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	478 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	479 a->usable = usable;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	480 return;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	481 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	482 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	483 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	484
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	485 int
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	486 get_algo_usable(algo_type algos[], const char * algo_name)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	487 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	488 algo_type *a;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	489 for (a = algos; a->name != NULL; a++)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	490 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	491 if (strcmp(a->name, algo_name) == 0)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	492 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	493 return a->usable;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	494 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	495 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	496 return 0;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	497 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	498
857 c19acba28590 use oldstyle comments Matt Johnston <matt@ucc.asn.au> parents: 852 diff changeset	499 #endif /* DROPBEAR_NONE_CIPHER */
686 983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	500
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	501 #if DROPBEAR_USER_ALGO_LIST
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	502
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	503 char *
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	504 algolist_string(algo_type algos[])
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	505 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	506 char *ret_list;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	507 buffer *b = buf_new(200);
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	508 buf_put_algolist(b, algos);
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	509 buf_setpos(b, b->len);
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	510 buf_putbyte(b, '\0');
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	511 buf_setpos(b, 4);
1094 c45d65392c1a Fix pointer differ in signess warnings [-Werror=pointer-sign] Gaël PORTAY <gael.portay@gmail.com> parents: 1038 diff changeset	512 ret_list = m_strdup((const char *) buf_getptr(b, b->len - b->pos));
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	513 buf_free(b);
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	514 return ret_list;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	515 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	516
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	517 static algo_type*
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	518 check_algo(const char* algo_name, algo_type *algos)
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	519 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	520 algo_type *a;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	521 for (a = algos; a->name != NULL; a++)
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	522 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	523 if (strcmp(a->name, algo_name) == 0)
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	524 {
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	525 return a;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	526 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	527 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	528
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	529 return NULL;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	530 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	531
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	532 /* Checks a user provided comma-separated algorithm list for available
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	533 * options. Any that are not acceptable are removed in-place. Returns the
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	534 * number of valid algorithms. */
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	535 int
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	536 check_user_algos(const char* user_algo_list, algo_type * algos,
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	537 const char *algo_desc)
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	538 {
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	539 algo_type new_algos[MAX_PROPOSED_ALGO+1];
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	540 char *work_list = m_strdup(user_algo_list);
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	541 char *start = work_list;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	542 char *c;
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	543 int n;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	544 /* So we can iterate and look for null terminator */
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	545 memset(new_algos, 0x0, sizeof(new_algos));
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	546 for (c = work_list, n = 0; ; c++)
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	547 {
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	548 char oc = *c;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	549 if (n >= MAX_PROPOSED_ALGO) {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	550 dropbear_exit("Too many algorithms '%s'", user_algo_list);
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	551 }
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	552 if (c == ',' \|\| c == '\0') {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	553 algo_type *match_algo = NULL;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	554 *c = '\0';
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	555 match_algo = check_algo(start, algos);
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	556 if (match_algo) {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	557 if (check_algo(start, new_algos)) {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	558 TRACE(("Skip repeated algorithm '%s'", start))
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	559 } else {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	560 new_algos[n] = *match_algo;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	561 n++;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	562 }
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	563 } else {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	564 dropbear_log(LOG_WARNING, "This Dropbear program does not support '%s' %s algorithm", start, algo_desc);
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	565 }
686 983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	566 c++;
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	567 start = c;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	568 }
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	569 if (oc == '\0') {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	570 break;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	571 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	572 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	573 m_free(work_list);
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	574 /* n+1 to include a null terminator */
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	575 memcpy(algos, new_algos, sizeof(new_algos) (n+1));
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	576 return n;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	577 }
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	578 #endif /* DROPBEAR_USER_ALGO_LIST */

Mercurial > dropbear

annotate common-algo.c @ 1437:871b18fd7065 fuzz