dropbear: common-algo.c annotate

annotate common-algo.c @ 1712:d885a77b98e0

avoid zero length array in base64_decode

author	Matt Johnston <matt@ucc.asn.au>
date	Wed, 10 Jun 2020 23:26:05 +0800
parents	41bf8f216644
children	c2c0f43ff827

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"
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	33 #include "gcm.h"
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	34 #include "chachapoly.h"
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	35 #include "ssh.h"
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 /* 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	38 * 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	39
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	40 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	41 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	42 if (in != out) {
e12c9225acbd - Don't memcpy() in place with void_encrypt Matt Johnston <matt@ucc.asn.au> parents: 503 diff changeset	43 memmove(out, in, len);
e12c9225acbd - Don't memcpy() in place with void_encrypt Matt Johnston <matt@ucc.asn.au> parents: 503 diff changeset	44 }
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	45 return CRYPT_OK;
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	46 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	47
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	48 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	49 const unsigned char* UNUSED(key),
ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	50 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	51 return CRYPT_OK;
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	52 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	53
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 /* Mappings for ciphers, parameters are
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 {&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	56
cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 686 diff changeset	57 /* 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	58
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	59 #if DROPBEAR_AES256
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	60 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	61 {&aes_desc, 32, 16};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	62 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	63 #if DROPBEAR_AES128
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	64 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	65 {&aes_desc, 16, 16};
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	67 #if DROPBEAR_BLOWFISH
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	68 static const struct dropbear_cipher dropbear_blowfish =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 {&blowfish_desc, 16, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	71 #if DROPBEAR_TWOFISH256
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	72 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	73 {&twofish_desc, 32, 16};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	74 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	75 #if DROPBEAR_TWOFISH128
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	76 static const struct dropbear_cipher dropbear_twofish128 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 {&twofish_desc, 16, 16};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	79 #if DROPBEAR_3DES
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	80 static const struct dropbear_cipher dropbear_3des =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 {&des3_desc, 24, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 /* 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	85 const struct dropbear_cipher dropbear_nocipher =
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 {NULL, 16, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	88 /* A few void* s are required to silence warnings
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	89 * 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	90 #if DROPBEAR_ENABLE_CBC_MODE
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	91 const struct dropbear_cipher_mode dropbear_mode_cbc =
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	92 {(void)cbc_start, (void)cbc_encrypt, (void*)cbc_decrypt, NULL, NULL, NULL};
1038 d3925ed45a85 Fix for old compilers, variable declarations at beginning of functions Thorsten Horstmann <thorsten.horstmann@web.de> parents: 1019 diff changeset	93 #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	94
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	95 const struct dropbear_cipher_mode dropbear_mode_none =
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	96 {void_start, void_cipher, void_cipher, NULL, NULL, NULL};
992 731f624af902 Add config option to disable cbc. Disable twofish by default Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	97
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	98 #if DROPBEAR_ENABLE_CTR_MODE
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	99 /* 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	100 static int dropbear_big_endian_ctr_start(int cipher,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	101 const unsigned char *IV,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	102 const unsigned char *key, int keylen,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	103 int num_rounds, symmetric_CTR *ctr) {
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	104 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	105 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	106 const struct dropbear_cipher_mode dropbear_mode_ctr =
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	107 {(void)dropbear_big_endian_ctr_start, (void)ctr_encrypt, (void*)ctr_decrypt, NULL, NULL, NULL};
1038 d3925ed45a85 Fix for old compilers, variable declarations at beginning of functions Thorsten Horstmann <thorsten.horstmann@web.de> parents: 1019 diff changeset	108 #endif /* DROPBEAR_ENABLE_CTR_MODE */
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	109
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 /* 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	111 {&hash_desc, keysize, hashsize} */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	113 #if DROPBEAR_SHA1_HMAC
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	114 static const struct dropbear_hash dropbear_sha1 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 {&sha1_desc, 20, 20};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	117 #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	118 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	119 {&sha1_desc, 20, 12};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	120 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	121 #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	122 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	123 {&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	124 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	125 #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	126 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	127 {&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	128 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	129 #if DROPBEAR_MD5_HMAC
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	130 static const struct dropbear_hash dropbear_md5 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 {&md5_desc, 16, 16};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 #endif
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 const struct dropbear_hash dropbear_nohash =
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 {NULL, 16, 0}; /* used initially */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	138 /* The following map ssh names to internal values.
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	139 * 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	140 * 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	141
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 algo_type sshciphers[] = {
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	143 #if DROPBEAR_CHACHA20POLY1305
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	144 {"[email protected]", 0, &dropbear_chachapoly, 1, &dropbear_mode_chachapoly},
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	145 #endif
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	146
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	147 #if DROPBEAR_ENABLE_GCM_MODE
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	148 #if DROPBEAR_AES128
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	149 {"[email protected]", 0, &dropbear_aes128, 1, &dropbear_mode_gcm},
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	150 #endif
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	151 #if DROPBEAR_AES256
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	152 {"[email protected]", 0, &dropbear_aes256, 1, &dropbear_mode_gcm},
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	153 #endif
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	154 #endif /* DROPBEAR_ENABLE_GCM_MODE */
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	155
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	156 #if DROPBEAR_ENABLE_CTR_MODE
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	157 #if DROPBEAR_AES128
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	158 {"aes128-ctr", 0, &dropbear_aes128, 1, &dropbear_mode_ctr},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	159 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	160 #if DROPBEAR_AES256
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	161 {"aes256-ctr", 0, &dropbear_aes256, 1, &dropbear_mode_ctr},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	162 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	163 #if DROPBEAR_TWOFISH_CTR
1087 1e486f368ec3 Disable twofish-ctr by default, add config option Matt Johnston <matt@ucc.asn.au> parents: 1038 diff changeset	164 /* 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	165 #if DROPBEAR_TWOFISH256
1012 ffd2359564b0 twofish ctr modes Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	166 {"twofish256-ctr", 0, &dropbear_twofish256, 1, &dropbear_mode_ctr},
ffd2359564b0 twofish ctr modes Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	167 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	168 #if DROPBEAR_TWOFISH128
1012 ffd2359564b0 twofish ctr modes Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	169 {"twofish128-ctr", 0, &dropbear_twofish128, 1, &dropbear_mode_ctr},
ffd2359564b0 twofish ctr modes Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	170 #endif
1087 1e486f368ec3 Disable twofish-ctr by default, add config option Matt Johnston <matt@ucc.asn.au> parents: 1038 diff changeset	171 #endif /* DROPBEAR_TWOFISH_CTR */
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	172 #endif /* DROPBEAR_ENABLE_CTR_MODE */
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	173
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	174 #if DROPBEAR_ENABLE_CBC_MODE
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	175 #if DROPBEAR_AES128
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	176 {"aes128-cbc", 0, &dropbear_aes128, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 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_AES256
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	179 {"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	180 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	181 #if DROPBEAR_TWOFISH256
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	182 {"twofish256-cbc", 0, &dropbear_twofish256, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	183 {"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	184 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	185 #if DROPBEAR_TWOFISH128
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	186 {"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	187 #endif
1673 e0871128e61f CBC mode cleanup (#95) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1672 diff changeset	188 #endif /* DROPBEAR_ENABLE_CBC_MODE */
e0871128e61f CBC mode cleanup (#95) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1672 diff changeset	189
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	190 #if DROPBEAR_3DES
1673 e0871128e61f CBC mode cleanup (#95) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1672 diff changeset	191 #if DROPBEAR_ENABLE_CTR_MODE
994 5c5ade336926 Prefer stronger algorithms in algorithm negotiation. Fedor Brunner <fedor.brunner@azet.sk> parents: 992 diff changeset	192 {"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	193 #endif
1673 e0871128e61f CBC mode cleanup (#95) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1672 diff changeset	194 #if DROPBEAR_ENABLE_CBC_MODE
994 5c5ade336926 Prefer stronger algorithms in algorithm negotiation. Fedor Brunner <fedor.brunner@azet.sk> parents: 992 diff changeset	195 {"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	196 #endif
1673 e0871128e61f CBC mode cleanup (#95) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1672 diff changeset	197 #endif /* DROPBEAR_3DES */
e0871128e61f CBC mode cleanup (#95) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1672 diff changeset	198
e0871128e61f CBC mode cleanup (#95) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1672 diff changeset	199 #if DROPBEAR_ENABLE_CBC_MODE
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	200 #if DROPBEAR_BLOWFISH
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	201 {"blowfish-cbc", 0, &dropbear_blowfish, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	202 #endif
992 731f624af902 Add config option to disable cbc. Disable twofish by default Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	203 #endif /* DROPBEAR_ENABLE_CBC_MODE */
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 algo_type sshhashes[] = {
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	208 #if DROPBEAR_SHA1_96_HMAC
1017 a37f8730eb0f Keep sha1 default Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	209 {"hmac-sha1-96", 0, &dropbear_sha1_96, 1, NULL},
a37f8730eb0f Keep sha1 default Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	210 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	211 #if DROPBEAR_SHA1_HMAC
1017 a37f8730eb0f Keep sha1 default Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	212 {"hmac-sha1", 0, &dropbear_sha1, 1, NULL},
a37f8730eb0f Keep sha1 default Matt Johnston <matt@ucc.asn.au> parents: 996 diff changeset	213 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	214 #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	215 {"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	216 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	217 #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	218 {"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	219 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	220 #if DROPBEAR_MD5_HMAC
681 a4b7627b3157 Update insecure-nocrypto to current head Matt Johnston <matt@ucc.asn.au> parents: 679 512 diff changeset	221 {"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	222 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	223 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 };
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 #ifndef DISABLE_ZLIB
575 f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	227 algo_type ssh_compress[] = {
994 5c5ade336926 Prefer stronger algorithms in algorithm negotiation. Fedor Brunner <fedor.brunner@azet.sk> parents: 992 diff changeset	228 {"[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	229 {"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	230 {"none", DROPBEAR_COMP_NONE, NULL, 1, NULL},
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	231 {NULL, 0, NULL, 0, NULL}
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	232 };
996 47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	233
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	234 algo_type ssh_delaycompress[] = {
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	235 {"[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	236 {"none", DROPBEAR_COMP_NONE, NULL, 1, NULL},
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	237 {NULL, 0, NULL, 0, NULL}
47643024fc90 Disable non-delayed zlib for server Matt Johnston <matt@ucc.asn.au> parents: 994 diff changeset	238 };
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 #endif
575 f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	240
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	241 algo_type ssh_nocompress[] = {
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	242 {"none", DROPBEAR_COMP_NONE, NULL, 1, NULL},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	243 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245
1678 4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	246 algo_type sigalgs[] = {
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1527 diff changeset	247 #if DROPBEAR_ED25519
1675 ae41624c2198 split signkey_type and signature_type for RSA sha1 vs sha256 Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	248 {"ssh-ed25519", DROPBEAR_SIGNATURE_ED25519, NULL, 1, NULL},
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1527 diff changeset	249 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	250 #if DROPBEAR_ECDSA
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	251 #if DROPBEAR_ECC_256
1675 ae41624c2198 split signkey_type and signature_type for RSA sha1 vs sha256 Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	252 {"ecdsa-sha2-nistp256", DROPBEAR_SIGNATURE_ECDSA_NISTP256, NULL, 1, NULL},
795 7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	253 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	254 #if DROPBEAR_ECC_384
1675 ae41624c2198 split signkey_type and signature_type for RSA sha1 vs sha256 Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	255 {"ecdsa-sha2-nistp384", DROPBEAR_SIGNATURE_ECDSA_NISTP384, NULL, 1, NULL},
795 7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	256 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	257 #if DROPBEAR_ECC_521
1675 ae41624c2198 split signkey_type and signature_type for RSA sha1 vs sha256 Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	258 {"ecdsa-sha2-nistp521", DROPBEAR_SIGNATURE_ECDSA_NISTP521, NULL, 1, NULL},
795 7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	259 #endif
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	260 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	261 #if DROPBEAR_RSA
1674 ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	262 #if DROPBEAR_RSA_SHA256
1675 ae41624c2198 split signkey_type and signature_type for RSA sha1 vs sha256 Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	263 {"rsa-sha2-256", DROPBEAR_SIGNATURE_RSA_SHA256, NULL, 1, NULL},
1674 ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	264 #endif
ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	265 #if DROPBEAR_RSA_SHA1
1675 ae41624c2198 split signkey_type and signature_type for RSA sha1 vs sha256 Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	266 {"ssh-rsa", DROPBEAR_SIGNATURE_RSA_SHA1, NULL, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 #endif
1674 ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	268 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	269 #if DROPBEAR_DSS
1675 ae41624c2198 split signkey_type and signature_type for RSA sha1 vs sha256 Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	270 {"ssh-dss", DROPBEAR_SIGNATURE_DSS, NULL, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	272 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	275 #if DROPBEAR_DH_GROUP1
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	276 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	277 #endif
1294 56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	278 #if DROPBEAR_DH_GROUP14_SHA1
1204 d2f9ef67af15 diffie-hellman-group14-sha256 Matt Johnston <matt@ucc.asn.au> parents: 1124 diff changeset	279 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	280 #endif
56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	281 #if DROPBEAR_DH_GROUP14_SHA256
1204 d2f9ef67af15 diffie-hellman-group14-sha256 Matt Johnston <matt@ucc.asn.au> parents: 1124 diff changeset	282 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	283 #endif
739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	284 #if DROPBEAR_DH_GROUP16
739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	285 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	286 #endif
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	287
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	288 #if DROPBEAR_ECDH
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	289 #if DROPBEAR_ECC_256
1273 139935236c72 const variables Francois Perrad <francois.perrad@gadz.org> parents: 1248 diff changeset	290 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	291 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	292 #if DROPBEAR_ECC_384
1273 139935236c72 const variables Francois Perrad <francois.perrad@gadz.org> parents: 1248 diff changeset	293 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	294 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	295 #if DROPBEAR_ECC_521
1273 139935236c72 const variables Francois Perrad <francois.perrad@gadz.org> parents: 1248 diff changeset	296 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	297 #endif
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	298 #endif /* DROPBEAR_ECDH */
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	299
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	300 #if DROPBEAR_CURVE25519
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	301 /* Referred to directly */
852 7540c0822374 Various cleanups and fixes for warnings Matt Johnston <matt@ucc.asn.au> parents: 848 diff changeset	302 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	303 #endif
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	304
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	305 /* data == NULL for non-kex algorithm identifiers */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306 algo_type sshkex[] = {
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	307 #if DROPBEAR_CURVE25519
1527 049b28f4be4a add curve25519-sha256 without @libssh.org Matt Johnston <matt@ucc.asn.au> parents: 1518 diff changeset	308 {"curve25519-sha256", 0, &kex_curve25519, 1, NULL},
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	309 {"[email protected]", 0, &kex_curve25519, 1, NULL},
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	310 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	311 #if DROPBEAR_ECDH
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	312 #if DROPBEAR_ECC_521
840 5128e525c8fa Default to some larger key sizes Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	313 {"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	314 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	315 #if DROPBEAR_ECC_384
762 a78a38e402d1 - Fix various hardcoded uses of SHA1 Matt Johnston <matt@ucc.asn.au> parents: 761 diff changeset	316 {"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	317 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	318 #if DROPBEAR_ECC_256
840 5128e525c8fa Default to some larger key sizes Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	319 {"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	320 #endif
bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	321 #endif
1518 b222c027a733 group14-sha256 should be higher than group14-sha1 Matt Johnston <matt@ucc.asn.au> parents: 1477 diff changeset	322 #if DROPBEAR_DH_GROUP14_SHA256
b222c027a733 group14-sha256 should be higher than group14-sha1 Matt Johnston <matt@ucc.asn.au> parents: 1477 diff changeset	323 {"diffie-hellman-group14-sha256", 0, &kex_dh_group14_sha256, 1, NULL},
b222c027a733 group14-sha256 should be higher than group14-sha1 Matt Johnston <matt@ucc.asn.au> parents: 1477 diff changeset	324 #endif
1294 56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	325 #if DROPBEAR_DH_GROUP14_SHA1
56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	326 {"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	327 #endif
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	328 #if DROPBEAR_DH_GROUP1
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	329 {"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	330 #endif
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	331 #if DROPBEAR_DH_GROUP16
739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1225 diff changeset	332 {"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	333 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	334 #if DROPBEAR_KEXGUESS2
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	335 {KEXGUESS2_ALGO_NAME, 0, NULL, 1, NULL},
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	336 #endif
1681 435cfb9ec96e send and handle SSH_MSG_EXT_INFO only at the correct point Matt Johnston <matt@ucc.asn.au> parents: 1678 diff changeset	337 #if DROPBEAR_EXT_INFO
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	338 #if DROPBEAR_CLIENT
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	339 /* Set unusable by svr_algos_initialise() */
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	340 {SSH_EXT_INFO_C, 0, 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	341 #endif
1681 435cfb9ec96e send and handle SSH_MSG_EXT_INFO only at the correct point Matt Johnston <matt@ucc.asn.au> parents: 1678 diff changeset	342 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	343 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	344 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	345
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	346 /* Output a comma separated list of algorithms to a buffer */
1678 4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	347 void buf_put_algolist_all(buffer * buf, const algo_type localalgos[], int useall) {
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	348 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	349 unsigned int donefirst = 0;
1678 4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	350 unsigned int startpos;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	351
1678 4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	352 startpos = buf->pos;
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	353 /* Placeholder for length */
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	354 buf_putint(buf, 0);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	355 for (i = 0; localalgos[i].name != NULL; i++) {
1678 4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	356 if (localalgos[i].usable \|\| useall) {
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	357 if (donefirst) {
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	358 buf_putbyte(buf, ',');
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	359 }
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	360 donefirst = 1;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	361 len = strlen(localalgos[i].name);
1678 4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	362 buf_putbytes(buf, (const unsigned char *) localalgos[i].name, len);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	363 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	364 }
1678 4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	365 /* Fill out the length */
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	366 len = buf->pos - startpos - 4;
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	367 buf_setpos(buf, startpos);
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	368 buf_putint(buf, len);
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	369 TRACE(("algolist add %d '%*s'", len, len, buf_getptr(buf, len)))
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	370 buf_incrwritepos(buf, len);
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	371 }
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	372
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	373 void buf_put_algolist(buffer * buf, const algo_type localalgos[]) {
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	374 buf_put_algolist_all(buf, localalgos, 0);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	375 }
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	376
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	377 /* returns a list of pointers into algolist, of null-terminated names.
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	378 ret_list should be passed in with space for *ret_count elements,
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	379 on return *ret_count has the number of names filled.
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	380 algolist is modified. */
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	381 static void get_algolist(char* algolist, unsigned int algolist_len,
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	382 const char* ret_list, unsigned int ret_count) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	383 unsigned int max_count = *ret_count;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	384 unsigned int i;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	385
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	386 if (*ret_count == 0) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	387 return;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	388 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	389 if (algolist_len > MAX_PROPOSED_ALGO*(MAX_NAME_LEN+1)) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	390 *ret_count = 0;
1683 41bf8f216644 merge rsa-sha256 Matt Johnston <matt@ucc.asn.au> parents: 1673 1681 diff changeset	391 }
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	392
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	393 /* ret_list will contain a list of the strings parsed out.
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	394 We will have at least one string (even if it's just "") */
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	395 ret_list[0] = algolist;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	396 *ret_count = 1;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	397 for (i = 0; i < algolist_len; i++) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	398 if (algolist[i] == '\0') {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	399 /* someone is trying something strange */
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	400 *ret_count = 0;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	401 return;
1683 41bf8f216644 merge rsa-sha256 Matt Johnston <matt@ucc.asn.au> parents: 1673 1681 diff changeset	402 }
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	403
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	404 if (algolist[i] == ',') {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	405 if (*ret_count >= max_count) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	406 /* Too many */
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	407 *ret_count = 0;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	408 return;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	409 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	410 algolist[i] = '\0';
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	411 ret_list[*ret_count] = &algolist[i+1];
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	412 (*ret_count)++;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	413 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	414 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	415 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	416
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	417 /* Return DROPBEAR_SUCCESS if the namelist contains algo,
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	418 DROPBEAR_FAILURE otherwise. buf position is not incremented. */
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	419 int buf_has_algo(buffer buf, const char algo) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	420 unsigned char* algolist = NULL;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	421 unsigned int orig_pos = buf->pos;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	422 unsigned int len, remotecount, i;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	423 const char *remotenames[MAX_PROPOSED_ALGO];
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	424 int ret = DROPBEAR_FAILURE;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	425
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	426 algolist = buf_getstring(buf, &len);
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	427 remotecount = MAX_PROPOSED_ALGO;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	428 get_algolist(algolist, len, remotenames, &remotecount);
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	429 for (i = 0; i < remotecount; i++)
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	430 {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	431 if (strcmp(remotenames[i], algo) == 0) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	432 ret = DROPBEAR_SUCCESS;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	433 break;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	434 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	435 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	436 if (algolist) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	437 m_free(algolist);
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	438 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	439 buf_setpos(buf, orig_pos);
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	440 return ret;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	441 }
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	442
1678 4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	443 algo_type * first_usable_algo(algo_type algos[]) {
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	444 int i;
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	445 for (i = 0; algos[i].name != NULL; i++) {
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	446 if (algos[i].usable) {
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	447 return &algos[i];
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	448 }
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	449 }
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	450 return NULL;
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	451 }
4b4cfc92c5b7 Make server send SSH_MSG_EXT_INFO Matt Johnston <matt@ucc.asn.au> parents: 1676 diff changeset	452
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	453 /* 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	454 * 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	455 * (*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	456 * 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	457 * guessed correctly */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	458 algo_type * buf_match_algo(buffer* buf, algo_type localalgos[],
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	459 int kexguess2, int *goodguess) {
1094 c45d65392c1a Fix pointer differ in signess warnings [-Werror=pointer-sign] Gaël PORTAY <gael.portay@gmail.com> parents: 1038 diff changeset	460 char * algolist = NULL;
c45d65392c1a Fix pointer differ in signess warnings [-Werror=pointer-sign] Gaël PORTAY <gael.portay@gmail.com> parents: 1038 diff changeset	461 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	462 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	463 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	464 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	465 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	466
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	467 if (goodguess) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	468 *goodguess = 0;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	469 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	470
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	471 /* 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	472 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	473 TRACE(("buf_match_algo: %s", algolist))
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	474 remotecount = MAX_PROPOSED_ALGO;
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	475 get_algolist(algolist, len, remotenames, &remotecount);
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	476
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	477 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	478 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	479 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	480 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	481 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	482 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	483 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	484 localcount = i;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	485
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	486 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	487 clinames = remotenames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	488 clicount = remotecount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	489 servnames = localnames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	490 servcount = localcount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	491 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	492 clinames = localnames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	493 clicount = localcount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	494 servnames = remotenames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	495 servcount = remotecount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	496 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	497
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	498 /* 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	499 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	500 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	501 if (!(servnames[j] && clinames[i])) {
857 c19acba28590 use oldstyle comments Matt Johnston <matt@ucc.asn.au> parents: 852 diff changeset	502 /* 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	503 continue;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	504 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	505 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	506 /* set if it was a good guess */
1676 d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	507 if (goodguess != NULL) {
d5cdc60db08e ext-info handling for server-sig-algs Matt Johnston <matt@ucc.asn.au> parents: 1675 diff changeset	508 if (kexguess2) {
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	509 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	510 *goodguess = 1;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	511 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	512 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	513 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	514 *goodguess = 1;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	515 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	516 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	517 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	518 /* 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	519 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	520 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	521 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	522 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	523 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	524 goto out;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	525 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	526 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	527 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	528
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	529 out:
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	530 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	531 return ret;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	532 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	533
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	534 #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	535
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	536 char *
1459 06d52bcb8094 Pointer parameter could be declared as pointing to const Francois Perrad <francois.perrad@gadz.org> parents: 1316 diff changeset	537 algolist_string(const 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	538 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	539 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	540 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	541 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	542 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	543 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	544 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	545 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	546 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	547 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	548 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	549
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	550 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	551 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	552 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	553 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	554 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	555 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	556 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	557 {
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	558 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	559 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	560 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	561
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	562 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	563 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	564
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	565 /* 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	566 * 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	567 * 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	568 int
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	569 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	570 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	571 {
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	572 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	573 char *work_list = m_strdup(user_algo_list);
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	574 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	575 char *c;
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	576 int n;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	577 /* So we can iterate and look for null terminator */
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	578 memset(new_algos, 0x0, sizeof(new_algos));
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	579 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	580 {
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	581 char oc = *c;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	582 if (n >= MAX_PROPOSED_ALGO) {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	583 dropbear_exit("Too many algorithms '%s'", user_algo_list);
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	584 }
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	585 if (c == ',' \|\| c == '\0') {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	586 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	587 *c = '\0';
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	588 match_algo = check_algo(start, algos);
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	589 if (match_algo) {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	590 if (check_algo(start, new_algos)) {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	591 TRACE(("Skip repeated algorithm '%s'", start))
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	592 } else {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	593 new_algos[n] = *match_algo;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	594 n++;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	595 }
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	596 } else {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	597 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	598 }
686 983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	599 c++;
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	600 start = c;
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	601 }
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	602 if (oc == '\0') {
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	603 break;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	604 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	605 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	606 m_free(work_list);
1303 eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	607 /* n+1 to include a null terminator */
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	608 memcpy(algos, new_algos, sizeof(new_algos) (n+1));
eed9376a4ad6 improve algorithm list parsing Matt Johnston <matt@ucc.asn.au> parents: 1273 diff changeset	609 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	610 }
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	611 #endif /* DROPBEAR_USER_ALGO_LIST */

Mercurial > dropbear

annotate common-algo.c @ 1712:d885a77b98e0