dropbear: common-algo.c annotate

annotate common-algo.c @ 970:0bb16232e7c4

Make keepalive handling more robust, this should now match what OpenSSH does

author	Matt Johnston <matt@ucc.asn.au>
date	Tue, 19 Aug 2014 23:08:56 +0800
parents	c19acba28590
children	89555751c489 731f624af902

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"
759 76fba0856749 More changes for KEX and ECDH. Set up hash descriptors, make ECC code work, Matt Johnston <matt@ucc.asn.au> parents: 756 diff changeset	30 #include "kex.h"
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	31 #include "ltc_prng.h"
ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	32 #include "ecc.h"
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 /* This file (algo.c) organises the ciphers which can be used, and is used to
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 * decide which ciphers/hashes/compression/signing to use during key exchange*/
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	37 static int void_cipher(const unsigned char* in, unsigned char* out,
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	38 unsigned long len, void* UNUSED(cipher_state)) {
543 e12c9225acbd - Don't memcpy() in place with void_encrypt Matt Johnston <matt@ucc.asn.au> parents: 503 diff changeset	39 if (in != out) {
e12c9225acbd - Don't memcpy() in place with void_encrypt Matt Johnston <matt@ucc.asn.au> parents: 503 diff changeset	40 memmove(out, in, len);
e12c9225acbd - Don't memcpy() in place with void_encrypt Matt Johnston <matt@ucc.asn.au> parents: 503 diff changeset	41 }
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	42 return CRYPT_OK;
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	43 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	44
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	45 static int void_start(int UNUSED(cipher), const unsigned char* UNUSED(IV),
ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	46 const unsigned char* UNUSED(key),
ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	47 int UNUSED(keylen), int UNUSED(num_rounds), void* UNUSED(cipher_state)) {
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	48 return CRYPT_OK;
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	49 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	50
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 /* Mappings for ciphers, parameters are
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 {&cipher_desc, keysize, blocksize} */
715 cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 686 diff changeset	53
cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 686 diff changeset	54 /* Remember to add new ciphers/hashes to regciphers/reghashes too */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	56 #ifdef DROPBEAR_AES256
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	57 static const struct dropbear_cipher dropbear_aes256 =
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	58 {&aes_desc, 32, 16};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	59 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	60 #ifdef DROPBEAR_AES128
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	61 static const struct dropbear_cipher dropbear_aes128 =
150 82fcf3185616 Cleaning out various dead wood found with -dead_strip Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	62 {&aes_desc, 16, 16};
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	64 #ifdef DROPBEAR_BLOWFISH
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	65 static const struct dropbear_cipher dropbear_blowfish =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 {&blowfish_desc, 16, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	68 #ifdef DROPBEAR_TWOFISH256
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	69 static const struct dropbear_cipher dropbear_twofish256 =
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	70 {&twofish_desc, 32, 16};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	71 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	72 #ifdef DROPBEAR_TWOFISH128
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	73 static const struct dropbear_cipher dropbear_twofish128 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 {&twofish_desc, 16, 16};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	76 #ifdef DROPBEAR_3DES
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	77 static const struct dropbear_cipher dropbear_3des =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 {&des3_desc, 24, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 /* used to indicate no encryption, as defined in rfc2410 */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 const struct dropbear_cipher dropbear_nocipher =
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 {NULL, 16, 8};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	85 /* A few void* s are required to silence warnings
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	86 * about the symmetric_CBC vs symmetric_CTR cipher_state pointer */
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	87 const struct dropbear_cipher_mode dropbear_mode_cbc =
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	88 {(void)cbc_start, (void)cbc_encrypt, (void*)cbc_decrypt};
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	89 const struct dropbear_cipher_mode dropbear_mode_none =
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	90 {void_start, void_cipher, void_cipher};
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	91 #ifdef DROPBEAR_ENABLE_CTR_MODE
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	92 /* 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	93 static int dropbear_big_endian_ctr_start(int cipher,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	94 const unsigned char *IV,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	95 const unsigned char *key, int keylen,
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	96 int num_rounds, symmetric_CTR *ctr) {
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	97 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	98 }
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	99 const struct dropbear_cipher_mode dropbear_mode_ctr =
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	100 {(void)dropbear_big_endian_ctr_start, (void)ctr_encrypt, (void*)ctr_decrypt};
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	101 #endif
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	102
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 /* 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	104 {&hash_desc, keysize, hashsize} */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 #ifdef DROPBEAR_SHA1_HMAC
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	107 static const struct dropbear_hash dropbear_sha1 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 {&sha1_desc, 20, 20};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 #endif
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	110 #ifdef DROPBEAR_SHA1_96_HMAC
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	111 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	112 {&sha1_desc, 20, 12};
5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	113 #endif
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	114 #ifdef DROPBEAR_SHA2_256_HMAC
03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	115 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	116 {&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	117 #endif
03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	118 #ifdef DROPBEAR_SHA2_512_HMAC
03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	119 static const struct dropbear_hash dropbear_sha2_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	120 {&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	121 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122 #ifdef DROPBEAR_MD5_HMAC
227 ad1b24e39bf3 Make a variables static Matt Johnston <matt@ucc.asn.au> parents: 194 diff changeset	123 static const struct dropbear_hash dropbear_md5 =
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 {&md5_desc, 16, 16};
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 const struct dropbear_hash dropbear_nohash =
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 {NULL, 16, 0}; /* used initially */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	131 /* The following map ssh names to internal values.
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	132 * 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	133 * 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	134
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 algo_type sshciphers[] = {
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	136 #ifdef DROPBEAR_ENABLE_CTR_MODE
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	137 #ifdef DROPBEAR_AES128
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	138 {"aes128-ctr", 0, &dropbear_aes128, 1, &dropbear_mode_ctr},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	139 #endif
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	140 #ifdef DROPBEAR_3DES
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	141 {"3des-ctr", 0, &dropbear_3des, 1, &dropbear_mode_ctr},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	143 #ifdef DROPBEAR_AES256
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	144 {"aes256-ctr", 0, &dropbear_aes256, 1, &dropbear_mode_ctr},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	145 #endif
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	146 #endif /* DROPBEAR_ENABLE_CTR_MODE */
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	147
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	148 /* CBC modes are always enabled */
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	149 #ifdef DROPBEAR_AES128
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	150 {"aes128-cbc", 0, &dropbear_aes128, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	151 #endif
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	152 #ifdef DROPBEAR_3DES
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	153 {"3des-cbc", 0, &dropbear_3des, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	154 #endif
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	155 #ifdef DROPBEAR_AES256
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	156 {"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	157 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	158 #ifdef DROPBEAR_TWOFISH256
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	159 {"twofish256-cbc", 0, &dropbear_twofish256, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	160 {"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	161 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	162 #ifdef DROPBEAR_TWOFISH128
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	163 {"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	164 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	165 #ifdef DROPBEAR_BLOWFISH
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	166 {"blowfish-cbc", 0, &dropbear_blowfish, 1, &dropbear_mode_cbc},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	167 #endif
252 29afa62b5450 - a hack for grahame to run dropbear with "none" cipher. Matt Johnston <matt@ucc.asn.au> parents: 238 diff changeset	168 #ifdef DROPBEAR_NONE_CIPHER
512 0129fd8ccc71 Update nocrypto branch to current head Matt Johnston <matt@ucc.asn.au> parents: 511 diff changeset	169 {"none", 0, (void*)&dropbear_nocipher, 1, &dropbear_mode_none},
252 29afa62b5450 - a hack for grahame to run dropbear with "none" cipher. Matt Johnston <matt@ucc.asn.au> parents: 238 diff changeset	170 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	171 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174 algo_type sshhashes[] = {
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	175 #ifdef 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	176 {"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	177 #endif
03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	178 #ifdef 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	179 {"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	180 #endif
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	181 #ifdef DROPBEAR_SHA1_96_HMAC
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	182 {"hmac-sha1-96", 0, &dropbear_sha1_96, 1, NULL},
228 5e4110bb753a - Fixed twofish algorithm naming so it actually works. Matt Johnston <matt@ucc.asn.au> parents: 227 diff changeset	183 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 #ifdef DROPBEAR_SHA1_HMAC
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	185 {"hmac-sha1", 0, &dropbear_sha1, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 #ifdef DROPBEAR_MD5_HMAC
681 a4b7627b3157 Update insecure-nocrypto to current head Matt Johnston <matt@ucc.asn.au> parents: 679 512 diff changeset	188 {"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	189 #endif
252 29afa62b5450 - a hack for grahame to run dropbear with "none" cipher. Matt Johnston <matt@ucc.asn.au> parents: 238 diff changeset	190 #ifdef DROPBEAR_NONE_INTEGRITY
681 a4b7627b3157 Update insecure-nocrypto to current head Matt Johnston <matt@ucc.asn.au> parents: 679 512 diff changeset	191 {"none", 0, (void*)&dropbear_nohash, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	193 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 #ifndef DISABLE_ZLIB
575 f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	197 algo_type ssh_compress[] = {
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	198 {"zlib", DROPBEAR_COMP_ZLIB, NULL, 1, NULL},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	199 {"[email protected]", DROPBEAR_COMP_ZLIB_DELAY, NULL, 1, NULL},
575 f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	200 {"none", DROPBEAR_COMP_NONE, NULL, 1, NULL},
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	201 {NULL, 0, NULL, 0, NULL}
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	202 };
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 #endif
575 f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	204
f9b5dc0cba61 - Disable compression for non-final multihops Matt Johnston <matt@ucc.asn.au> parents: 543 diff changeset	205 algo_type ssh_nocompress[] = {
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	206 {"none", DROPBEAR_COMP_NONE, NULL, 1, NULL},
43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	207 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 algo_type sshhostkey[] = {
795 7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	211 #ifdef DROPBEAR_ECDSA
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	212 #ifdef DROPBEAR_ECC_256
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	213 {"ecdsa-sha2-nistp256", DROPBEAR_SIGNKEY_ECDSA_NISTP256, NULL, 1, NULL},
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	214 #endif
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	215 #ifdef DROPBEAR_ECC_384
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	216 {"ecdsa-sha2-nistp384", DROPBEAR_SIGNKEY_ECDSA_NISTP384, NULL, 1, NULL},
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	217 #endif
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	218 #ifdef DROPBEAR_ECC_521
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	219 {"ecdsa-sha2-nistp521", DROPBEAR_SIGNKEY_ECDSA_NISTP521, NULL, 1, NULL},
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	220 #endif
7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 766 diff changeset	221 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222 #ifdef DROPBEAR_RSA
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	223 {"ssh-rsa", DROPBEAR_SIGNKEY_RSA, NULL, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 #ifdef DROPBEAR_DSS
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	226 {"ssh-dss", DROPBEAR_SIGNKEY_DSS, NULL, 1, NULL},
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	228 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	231 static const struct dropbear_kex kex_dh_group1 = {DROPBEAR_KEX_NORMAL_DH, dh_p_1, DH_P_1_LEN, NULL, &sha1_desc };
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	232 static const struct dropbear_kex kex_dh_group14 = {DROPBEAR_KEX_NORMAL_DH, dh_p_14, DH_P_14_LEN, NULL, &sha1_desc };
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	233
852 7540c0822374 Various cleanups and fixes for warnings Matt Johnston <matt@ucc.asn.au> parents: 848 diff changeset	234 /* These can't be const since dropbear_ecc_fill_dp() fills out
7540c0822374 Various cleanups and fixes for warnings Matt Johnston <matt@ucc.asn.au> parents: 848 diff changeset	235 ecc_curve at runtime */
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	236 #ifdef DROPBEAR_ECDH
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	237 #ifdef DROPBEAR_ECC_256
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	238 static 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	239 #endif
bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	240 #ifdef DROPBEAR_ECC_384
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	241 static 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	242 #endif
bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	243 #ifdef DROPBEAR_ECC_521
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	244 static 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	245 #endif
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	246 #endif /* DROPBEAR_ECDH */
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	247
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	248 #ifdef DROPBEAR_CURVE25519
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	249 /* Referred to directly */
852 7540c0822374 Various cleanups and fixes for warnings Matt Johnston <matt@ucc.asn.au> parents: 848 diff changeset	250 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	251 #endif
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	252
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253 algo_type sshkex[] = {
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	254 #ifdef DROPBEAR_CURVE25519
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	255 {"[email protected]", 0, &kex_curve25519, 1, NULL},
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	256 #endif
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	257 #ifdef DROPBEAR_ECDH
840 5128e525c8fa Default to some larger key sizes Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	258 #ifdef DROPBEAR_ECC_521
5128e525c8fa Default to some larger key sizes Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	259 {"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	260 #endif
bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	261 #ifdef DROPBEAR_ECC_384
762 a78a38e402d1 - Fix various hardcoded uses of SHA1 Matt Johnston <matt@ucc.asn.au> parents: 761 diff changeset	262 {"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	263 #endif
840 5128e525c8fa Default to some larger key sizes Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	264 #ifdef DROPBEAR_ECC_256
5128e525c8fa Default to some larger key sizes Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	265 {"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	266 #endif
bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	267 #endif
bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	268 {"diffie-hellman-group1-sha1", 0, &kex_dh_group1, 1, NULL},
bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	269 {"diffie-hellman-group14-sha1", 0, &kex_dh_group14, 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	270 #ifdef USE_KEXGUESS2
740 3062da90dab8 Add kexguess2 behaviour Matt Johnston <matt@ucc.asn.au> parents: 715 diff changeset	271 {KEXGUESS2_ALGO_NAME, KEXGUESS2_ALGO_ID, NULL, 1, NULL},
746 465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	272 #endif
502 43bbe17d6ba0 - Add Counter Mode support Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	273 {NULL, 0, NULL, 0, NULL}
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274 };
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276 /* algolen specifies the length of algo, algos is our local list to match
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277 * against.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278 * Returns DROPBEAR_SUCCESS if we have a match for algo, DROPBEAR_FAILURE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 * otherwise */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 int have_algo(char* algo, size_t algolen, algo_type algos[]) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 for (i = 0; algos[i].name != NULL; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 if (strlen(algos[i].name) == algolen
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 && (strncmp(algos[i].name, algo, algolen) == 0)) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294 /* Output a comma separated list of algorithms to a buffer */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	295 void buf_put_algolist(buffer * buf, algo_type localalgos[]) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	297 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	298 unsigned int donefirst = 0;
e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	299 buffer *algolist = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 840 diff changeset	301 algolist = buf_new(200);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302 for (i = 0; localalgos[i].name != NULL; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303 if (localalgos[i].usable) {
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	304 if (donefirst)
e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	305 buf_putbyte(algolist, ',');
e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	306 donefirst = 1;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	307 len = strlen(localalgos[i].name);
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	308 buf_putbytes(algolist, localalgos[i].name, len);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	309 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	310 }
238 e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	311 buf_putstring(buf, algolist->data, algolist->len);
e923801a7678 use a buffer rather than raw char array for creating Matt Johnston <matt@ucc.asn.au> parents: 237 diff changeset	312 buf_free(algolist);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	313 }
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	314
741 eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	315 /* 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	316 * 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	317 * (*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	318 * 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	319 * guessed correctly */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	320 algo_type * buf_match_algo(buffer* buf, algo_type localalgos[],
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	321 enum kexguess2_used kexguess2, int goodguess)
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	322 {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	323
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	324 unsigned char * algolist = NULL;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	325 const unsigned char remotenames[MAX_PROPOSED_ALGO], localnames[MAX_PROPOSED_ALGO];
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	326 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	327 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	328 algo_type * ret = NULL;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	329 const unsigned char clinames, servnames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	330
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	331 if (goodguess) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	332 *goodguess = 0;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	333 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	334
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	335 /* 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	336 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	337 TRACE(("buf_match_algo: %s", algolist))
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	338 if (len > MAX_PROPOSED_ALGO*(MAX_NAME_LEN+1)) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	339 goto out;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	340 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	341
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	342 /* remotenames will contain a list of the strings parsed out */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	343 /* We will have at least one string (even if it's just "") */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	344 remotenames[0] = algolist;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	345 remotecount = 1;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	346 for (i = 0; i < len; i++) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	347 if (algolist[i] == '\0') {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	348 /* someone is trying something strange */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	349 goto out;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	350 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	351 if (algolist[i] == ',') {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	352 algolist[i] = '\0';
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	353 remotenames[remotecount] = &algolist[i+1];
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	354 remotecount++;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	355 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	356 if (remotecount >= MAX_PROPOSED_ALGO) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	357 break;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	358 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	359 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	360 if (kexguess2 && *kexguess2 == KEXGUESS2_LOOK) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	361 for (i = 0; i < remotecount; i++)
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	362 {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	363 if (strcmp(remotenames[i], KEXGUESS2_ALGO_NAME) == 0) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	364 *kexguess2 = KEXGUESS2_YES;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	365 break;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	366 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	367 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	368 if (*kexguess2 == KEXGUESS2_LOOK) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	369 *kexguess2 = KEXGUESS2_NO;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	370 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	371 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	372
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	373 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	374 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	375 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	376 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	377 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	378 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	379 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	380 localcount = i;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	381
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	382 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	383 clinames = remotenames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	384 clicount = remotecount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	385 servnames = localnames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	386 servcount = localcount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	387 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	388 clinames = localnames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	389 clicount = localcount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	390 servnames = remotenames;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	391 servcount = remotecount;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	392 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	393
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	394 /* 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	395 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	396 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	397 if (!(servnames[j] && clinames[i])) {
857 c19acba28590 use oldstyle comments Matt Johnston <matt@ucc.asn.au> parents: 852 diff changeset	398 /* 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	399 continue;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	400 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	401 if (strcmp(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	402 /* set if it was a good guess */
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	403 if (goodguess && kexguess2) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	404 if (*kexguess2 == KEXGUESS2_YES) {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	405 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	406 *goodguess = 1;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	407 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	408
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	409 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	410 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	411 *goodguess = 1;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	412 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	413 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	414 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	415 /* 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	416 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	417 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	418 } else {
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	419 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	420 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	421 goto out;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	422 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	423 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	424 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	425
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	426 out:
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	427 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	428 return ret;
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	429 }
eafdf8b363f5 Get rid of client/server specific buf_match_algo, use single Matt Johnston <matt@ucc.asn.au> parents: 740 diff changeset	430
686 983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	431 #ifdef DROPBEAR_NONE_CIPHER
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	432
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	433 void
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	434 set_algo_usable(algo_type algos[], const char * algo_name, int usable)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	435 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	436 algo_type *a;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	437 for (a = algos; a->name != NULL; a++)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	438 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	439 if (strcmp(a->name, algo_name) == 0)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	440 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	441 a->usable = usable;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	442 return;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	443 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	444 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	445 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	446
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	447 int
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	448 get_algo_usable(algo_type algos[], const char * algo_name)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	449 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	450 algo_type *a;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	451 for (a = algos; a->name != NULL; a++)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	452 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	453 if (strcmp(a->name, algo_name) == 0)
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	454 {
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	455 return a->usable;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	456 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	457 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	458 return 0;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	459 }
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	460
857 c19acba28590 use oldstyle comments Matt Johnston <matt@ucc.asn.au> parents: 852 diff changeset	461 #endif /* DROPBEAR_NONE_CIPHER */
686 983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	462
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	463 #ifdef ENABLE_USER_ALGO_LIST
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	464
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	465 char *
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	466 algolist_string(algo_type algos[])
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	467 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	468 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	469 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	470 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	471 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	472 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	473 buf_setpos(b, 4);
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	474 ret_list = m_strdup(buf_getptr(b, b->len - b->pos));
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	475 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	476 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	477 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	478
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	479 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	480 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	481 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	482 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	483 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	484 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	485 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	486 {
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	487 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	488 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	489 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	490
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	491 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	492 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	493
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	494 static void
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	495 try_add_algo(const char algo_name, algo_type algos,
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	496 const char algo_desc, algo_type new_algos, int *num_ret)
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	497 {
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	498 algo_type *match_algo = check_algo(algo_name, algos);
63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	499 if (!match_algo)
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	500 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	501 dropbear_log(LOG_WARNING, "This Dropbear program does not support '%s' %s algorithm", algo_name, algo_desc);
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	502 return;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	503 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	504
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	505 new_algos[num_ret] = match_algo;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	506 (*num_ret)++;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	507 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	508
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	509 /* 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	510 * 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	511 * 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	512 int
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	513 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	514 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	515 {
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	516 algo_type new_algos[MAX_PROPOSED_ALGO];
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	517 /* this has two passes. first we sweep through the given list of
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	518 * algorithms and mark them as usable=2 in the algo_type[] array... */
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	519 int num_ret = 0;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	520 char *work_list = m_strdup(user_algo_list);
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	521 char *last_name = work_list;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	522 char *c;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	523 for (c = work_list; *c; c++)
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	524 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	525 if (*c == ',')
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	526 {
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	527 *c = '\0';
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	528 try_add_algo(last_name, algos, algo_desc, new_algos, &num_ret);
686 983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	529 c++;
983a817f8e41 - Only request "none" cipher after auth has succeeded Matt Johnston <matt@ucc.asn.au> parents: 684 diff changeset	530 last_name = c;
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	531 }
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	532 }
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	533 try_add_algo(last_name, algos, algo_desc, new_algos, &num_ret);
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	534 m_free(work_list);
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	535
683 63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	536 new_algos[num_ret].name = NULL;
63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	537
63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	538 /* Copy one more as a blank delimiter */
63f8d6c469cf ENABLE_USER_ALGO_LIST should work for the client Matt Johnston <matt@ucc.asn.au> parents: 682 diff changeset	539 memcpy(algos, new_algos, sizeof(new_algos) (num_ret+1));
682 4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	540 return num_ret;
4edea9f363d0 Add rough support for choosing ciphers/hashes with "-c" or "-m" Matt Johnston <matt@ucc.asn.au> parents: 595 diff changeset	541 }
857 c19acba28590 use oldstyle comments Matt Johnston <matt@ucc.asn.au> parents: 852 diff changeset	542 #endif /* ENABLE_USER_ALGO_LIST */

Mercurial > dropbear

annotate common-algo.c @ 970:0bb16232e7c4