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| 1 /* ssl/ssl_ciph.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This package is an SSL implementation written | |
| 6 * by Eric Young (eay@cryptsoft.com). | |
| 7 * The implementation was written so as to conform with Netscapes SSL. | |
| 8 * | |
| 9 * This library is free for commercial and non-commercial use as long as | |
| 10 * the following conditions are aheared to. The following conditions | |
| 11 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 13 * included with this distribution is covered by the same copyright terms | |
| 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 15 * | |
| 16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 17 * the code are not to be removed. | |
| 18 * If this package is used in a product, Eric Young should be given attribution | |
| 19 * as the author of the parts of the library used. | |
| 20 * This can be in the form of a textual message at program startup or | |
| 21 * in documentation (online or textual) provided with the package. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 26 * 1. Redistributions of source code must retain the copyright | |
| 27 * notice, this list of conditions and the following disclaimer. | |
| 28 * 2. Redistributions in binary form must reproduce the above copyright | |
| 29 * notice, this list of conditions and the following disclaimer in the | |
| 30 * documentation and/or other materials provided with the distribution. | |
| 31 * 3. All advertising materials mentioning features or use of this software | |
| 32 * must display the following acknowledgement: | |
| 33 * "This product includes cryptographic software written by | |
| 34 * Eric Young (eay@cryptsoft.com)" | |
| 35 * The word 'cryptographic' can be left out if the rouines from the library | |
| 36 * being used are not cryptographic related :-). | |
| 37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 38 * the apps directory (application code) you must include an acknowledgement: | |
| 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 40 * | |
| 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 53 * The licence and distribution terms for any publically available version or | |
| 54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 55 * copied and put under another distribution licence | |
| 56 * [including the GNU Public Licence.] | |
| 57 */ | |
| 58 /* ==================================================================== | |
| 59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. | |
| 60 * | |
| 61 * Redistribution and use in source and binary forms, with or without | |
| 62 * modification, are permitted provided that the following conditions | |
| 63 * are met: | |
| 64 * | |
| 65 * 1. Redistributions of source code must retain the above copyright | |
| 66 * notice, this list of conditions and the following disclaimer. | |
| 67 * | |
| 68 * 2. Redistributions in binary form must reproduce the above copyright | |
| 69 * notice, this list of conditions and the following disclaimer in | |
| 70 * the documentation and/or other materials provided with the | |
| 71 * distribution. | |
| 72 * | |
| 73 * 3. All advertising materials mentioning features or use of this | |
| 74 * software must display the following acknowledgment: | |
| 75 * "This product includes software developed by the OpenSSL Project | |
| 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
| 77 * | |
| 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 79 * endorse or promote products derived from this software without | |
| 80 * prior written permission. For written permission, please contact | |
| 81 * openssl-core@openssl.org. | |
| 82 * | |
| 83 * 5. Products derived from this software may not be called "OpenSSL" | |
| 84 * nor may "OpenSSL" appear in their names without prior written | |
| 85 * permission of the OpenSSL Project. | |
| 86 * | |
| 87 * 6. Redistributions of any form whatsoever must retain the following | |
| 88 * acknowledgment: | |
| 89 * "This product includes software developed by the OpenSSL Project | |
| 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
| 91 * | |
| 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 103 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 104 * ==================================================================== | |
| 105 * | |
| 106 * This product includes cryptographic software written by Eric Young | |
| 107 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 108 * Hudson (tjh@cryptsoft.com). | |
| 109 * | |
| 110 */ | |
| 111 /* ==================================================================== | |
| 112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
| 113 * ECC cipher suite support in OpenSSL originally developed by | |
| 114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. | |
| 115 */ | |
| 116 /* ==================================================================== | |
| 117 * Copyright 2005 Nokia. All rights reserved. | |
| 118 * | |
| 119 * The portions of the attached software ("Contribution") is developed by | |
| 120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
| 121 * license. | |
| 122 * | |
| 123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
| 124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
| 125 * support (see RFC 4279) to OpenSSL. | |
| 126 * | |
| 127 * No patent licenses or other rights except those expressly stated in | |
| 128 * the OpenSSL open source license shall be deemed granted or received | |
| 129 * expressly, by implication, estoppel, or otherwise. | |
| 130 * | |
| 131 * No assurances are provided by Nokia that the Contribution does not | |
| 132 * infringe the patent or other intellectual property rights of any third | |
| 133 * party or that the license provides you with all the necessary rights | |
| 134 * to make use of the Contribution. | |
| 135 * | |
| 136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
| 137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
| 138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
| 139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
| 140 * OTHERWISE. | |
| 141 */ | |
| 142 | |
| 143 #include <stdio.h> | |
| 144 #include <openssl/objects.h> | |
| 145 #ifndef OPENSSL_NO_COMP | |
| 146 #include <openssl/comp.h> | |
| 147 #endif | |
| 148 #ifndef OPENSSL_NO_ENGINE | |
| 149 #include <openssl/engine.h> | |
| 150 #endif | |
| 151 #include "ssl_locl.h" | |
| 152 | |
| 153 #define SSL_ENC_DES_IDX 0 | |
| 154 #define SSL_ENC_3DES_IDX 1 | |
| 155 #define SSL_ENC_RC4_IDX 2 | |
| 156 #define SSL_ENC_RC2_IDX 3 | |
| 157 #define SSL_ENC_IDEA_IDX 4 | |
| 158 #define SSL_ENC_NULL_IDX 5 | |
| 159 #define SSL_ENC_AES128_IDX 6 | |
| 160 #define SSL_ENC_AES256_IDX 7 | |
| 161 #define SSL_ENC_CAMELLIA128_IDX 8 | |
| 162 #define SSL_ENC_CAMELLIA256_IDX 9 | |
| 163 #define SSL_ENC_GOST89_IDX 10 | |
| 164 #define SSL_ENC_SEED_IDX 11 | |
| 165 #define SSL_ENC_AES128GCM_IDX 12 | |
| 166 #define SSL_ENC_AES256GCM_IDX 13 | |
| 167 #define SSL_ENC_NUM_IDX 14 | |
| 168 | |
| 169 | |
| 170 static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={ | |
| 171 NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL | |
| 172 }; | |
| 173 | |
| 174 #define SSL_COMP_NULL_IDX 0 | |
| 175 #define SSL_COMP_ZLIB_IDX 1 | |
| 176 #define SSL_COMP_NUM_IDX 2 | |
| 177 | |
| 178 static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL; | |
| 179 | |
| 180 #define SSL_MD_MD5_IDX 0 | |
| 181 #define SSL_MD_SHA1_IDX 1 | |
| 182 #define SSL_MD_GOST94_IDX 2 | |
| 183 #define SSL_MD_GOST89MAC_IDX 3 | |
| 184 #define SSL_MD_SHA256_IDX 4 | |
| 185 #define SSL_MD_SHA384_IDX 5 | |
| 186 /*Constant SSL_MAX_DIGEST equal to size of digests array should be | |
| 187 * defined in the | |
| 188 * ssl_locl.h */ | |
| 189 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST | |
| 190 static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={ | |
| 191 NULL,NULL,NULL,NULL,NULL,NULL | |
| 192 }; | |
| 193 /* PKEY_TYPE for GOST89MAC is known in advance, but, because | |
| 194 * implementation is engine-provided, we'll fill it only if | |
| 195 * corresponding EVP_PKEY_METHOD is found | |
| 196 */ | |
| 197 static int ssl_mac_pkey_id[SSL_MD_NUM_IDX]={ | |
| 198 EVP_PKEY_HMAC,EVP_PKEY_HMAC,EVP_PKEY_HMAC,NID_undef, | |
| 199 EVP_PKEY_HMAC,EVP_PKEY_HMAC | |
| 200 }; | |
| 201 | |
| 202 static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={ | |
| 203 0,0,0,0,0,0 | |
| 204 }; | |
| 205 | |
| 206 static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX]={ | |
| 207 SSL_HANDSHAKE_MAC_MD5,SSL_HANDSHAKE_MAC_SHA, | |
| 208 SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256, | |
| 209 SSL_HANDSHAKE_MAC_SHA384 | |
| 210 }; | |
| 211 | |
| 212 #define CIPHER_ADD 1 | |
| 213 #define CIPHER_KILL 2 | |
| 214 #define CIPHER_DEL 3 | |
| 215 #define CIPHER_ORD 4 | |
| 216 #define CIPHER_SPECIAL 5 | |
| 217 | |
| 218 typedef struct cipher_order_st | |
| 219 { | |
| 220 const SSL_CIPHER *cipher; | |
| 221 int active; | |
| 222 int dead; | |
| 223 struct cipher_order_st *next,*prev; | |
| 224 } CIPHER_ORDER; | |
| 225 | |
| 226 static const SSL_CIPHER cipher_aliases[]={ | |
| 227 /* "ALL" doesn't include eNULL (must be specifically enabled) */ | |
| 228 {0,SSL_TXT_ALL,0, 0,0,~SSL_eNULL,0,0,0,0,0,0}, | |
| 229 /* "COMPLEMENTOFALL" */ | |
| 230 {0,SSL_TXT_CMPALL,0, 0,0,SSL_eNULL,0,0,0,0,0,0}, | |
| 231 | |
| 232 /* "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in A
LL!) */ | |
| 233 {0,SSL_TXT_CMPDEF,0, SSL_kEDH|SSL_kEECDH,SSL_aNULL,~SSL_eNULL,0,0,0,0,0
,0}, | |
| 234 | |
| 235 /* key exchange aliases | |
| 236 * (some of those using only a single bit here combine | |
| 237 * multiple key exchange algs according to the RFCs, | |
| 238 * e.g. kEDH combines DHE_DSS and DHE_RSA) */ | |
| 239 {0,SSL_TXT_kRSA,0, SSL_kRSA, 0,0,0,0,0,0,0,0}, | |
| 240 | |
| 241 {0,SSL_TXT_kDHr,0, SSL_kDHr, 0,0,0,0,0,0,0,0}, /* no such ciphersuit
es supported! */ | |
| 242 {0,SSL_TXT_kDHd,0, SSL_kDHd, 0,0,0,0,0,0,0,0}, /* no such ciphersuit
es supported! */ | |
| 243 {0,SSL_TXT_kDH,0, SSL_kDHr|SSL_kDHd,0,0,0,0,0,0,0,0}, /* no such cip
hersuites supported! */ | |
| 244 {0,SSL_TXT_kEDH,0, SSL_kEDH, 0,0,0,0,0,0,0,0}, | |
| 245 {0,SSL_TXT_DH,0, SSL_kDHr|SSL_kDHd|SSL_kEDH,0,0,0,0,0,0,0,0}, | |
| 246 | |
| 247 {0,SSL_TXT_kKRB5,0, SSL_kKRB5, 0,0,0,0,0,0,0,0}, | |
| 248 | |
| 249 {0,SSL_TXT_kECDHr,0, SSL_kECDHr,0,0,0,0,0,0,0,0}, | |
| 250 {0,SSL_TXT_kECDHe,0, SSL_kECDHe,0,0,0,0,0,0,0,0}, | |
| 251 {0,SSL_TXT_kECDH,0, SSL_kECDHr|SSL_kECDHe,0,0,0,0,0,0,0,0}, | |
| 252 {0,SSL_TXT_kEECDH,0, SSL_kEECDH,0,0,0,0,0,0,0,0}, | |
| 253 {0,SSL_TXT_ECDH,0, SSL_kECDHr|SSL_kECDHe|SSL_kEECDH,0,0,0,0,0,0,0,0}, | |
| 254 | |
| 255 {0,SSL_TXT_kPSK,0, SSL_kPSK, 0,0,0,0,0,0,0,0}, | |
| 256 {0,SSL_TXT_kSRP,0, SSL_kSRP, 0,0,0,0,0,0,0,0}, | |
| 257 {0,SSL_TXT_kGOST,0, SSL_kGOST,0,0,0,0,0,0,0,0}, | |
| 258 | |
| 259 /* server authentication aliases */ | |
| 260 {0,SSL_TXT_aRSA,0, 0,SSL_aRSA, 0,0,0,0,0,0,0}, | |
| 261 {0,SSL_TXT_aDSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, | |
| 262 {0,SSL_TXT_DSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, | |
| 263 {0,SSL_TXT_aKRB5,0, 0,SSL_aKRB5, 0,0,0,0,0,0,0}, | |
| 264 {0,SSL_TXT_aNULL,0, 0,SSL_aNULL, 0,0,0,0,0,0,0}, | |
| 265 {0,SSL_TXT_aDH,0, 0,SSL_aDH, 0,0,0,0,0,0,0}, /* no such ciphersuit
es supported! */ | |
| 266 {0,SSL_TXT_aECDH,0, 0,SSL_aECDH, 0,0,0,0,0,0,0}, | |
| 267 {0,SSL_TXT_aECDSA,0, 0,SSL_aECDSA,0,0,0,0,0,0,0}, | |
| 268 {0,SSL_TXT_ECDSA,0, 0,SSL_aECDSA, 0,0,0,0,0,0,0}, | |
| 269 {0,SSL_TXT_aPSK,0, 0,SSL_aPSK, 0,0,0,0,0,0,0}, | |
| 270 {0,SSL_TXT_aGOST94,0,0,SSL_aGOST94,0,0,0,0,0,0,0}, | |
| 271 {0,SSL_TXT_aGOST01,0,0,SSL_aGOST01,0,0,0,0,0,0,0}, | |
| 272 {0,SSL_TXT_aGOST,0,0,SSL_aGOST94|SSL_aGOST01,0,0,0,0,0,0,0}, | |
| 273 | |
| 274 /* aliases combining key exchange and server authentication */ | |
| 275 {0,SSL_TXT_EDH,0, SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0}, | |
| 276 {0,SSL_TXT_EECDH,0, SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0}, | |
| 277 {0,SSL_TXT_NULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, | |
| 278 {0,SSL_TXT_KRB5,0, SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0}, | |
| 279 {0,SSL_TXT_RSA,0, SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0}, | |
| 280 {0,SSL_TXT_ADH,0, SSL_kEDH,SSL_aNULL,0,0,0,0,0,0,0}, | |
| 281 {0,SSL_TXT_AECDH,0, SSL_kEECDH,SSL_aNULL,0,0,0,0,0,0,0}, | |
| 282 {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0}, | |
| 283 {0,SSL_TXT_SRP,0, SSL_kSRP,0,0,0,0,0,0,0,0}, | |
| 284 | |
| 285 | |
| 286 /* symmetric encryption aliases */ | |
| 287 {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0}, | |
| 288 {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0}, | |
| 289 {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0}, | |
| 290 {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0}, | |
| 291 {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0}, | |
| 292 {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0}, | |
| 293 {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, | |
| 294 {0,SSL_TXT_AES128,0, 0,0,SSL_AES128|SSL_AES128GCM,0,0,0,0,0,0}, | |
| 295 {0,SSL_TXT_AES256,0, 0,0,SSL_AES256|SSL_AES256GCM,0,0,0,0,0,0}, | |
| 296 {0,SSL_TXT_AES,0, 0,0,SSL_AES,0,0,0,0,0,0}, | |
| 297 {0,SSL_TXT_AES_GCM,0, 0,0,SSL_AES128GCM|SSL_AES256GCM,0,0,0,0,0,0}, | |
| 298 {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0}, | |
| 299 {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0}, | |
| 300 {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0
}, | |
| 301 {0,SSL_TXT_CHACHA20 ,0,0,0,SSL_CHACHA20POLY1305,0,0,0,0,0,0}, | |
| 302 | |
| 303 /* MAC aliases */ | |
| 304 {0,SSL_TXT_MD5,0, 0,0,0,SSL_MD5, 0,0,0,0,0}, | |
| 305 {0,SSL_TXT_SHA1,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, | |
| 306 {0,SSL_TXT_SHA,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, | |
| 307 {0,SSL_TXT_GOST94,0, 0,0,0,SSL_GOST94, 0,0,0,0,0}, | |
| 308 {0,SSL_TXT_GOST89MAC,0, 0,0,0,SSL_GOST89MAC, 0,0,0,0,0}, | |
| 309 {0,SSL_TXT_SHA256,0, 0,0,0,SSL_SHA256, 0,0,0,0,0}, | |
| 310 {0,SSL_TXT_SHA384,0, 0,0,0,SSL_SHA384, 0,0,0,0,0}, | |
| 311 | |
| 312 /* protocol version aliases */ | |
| 313 {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0}, | |
| 314 {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0}, | |
| 315 {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0}, | |
| 316 {0,SSL_TXT_TLSV1_2,0, 0,0,0,0,SSL_TLSV1_2, 0,0,0,0}, | |
| 317 | |
| 318 /* export flag */ | |
| 319 {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, | |
| 320 {0,SSL_TXT_EXPORT,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, | |
| 321 | |
| 322 /* strength classes */ | |
| 323 {0,SSL_TXT_EXP40,0, 0,0,0,0,0,SSL_EXP40, 0,0,0}, | |
| 324 {0,SSL_TXT_EXP56,0, 0,0,0,0,0,SSL_EXP56, 0,0,0}, | |
| 325 {0,SSL_TXT_LOW,0, 0,0,0,0,0,SSL_LOW, 0,0,0}, | |
| 326 {0,SSL_TXT_MEDIUM,0, 0,0,0,0,0,SSL_MEDIUM,0,0,0}, | |
| 327 {0,SSL_TXT_HIGH,0, 0,0,0,0,0,SSL_HIGH, 0,0,0}, | |
| 328 /* FIPS 140-2 approved ciphersuite */ | |
| 329 {0,SSL_TXT_FIPS,0, 0,0,~SSL_eNULL,0,0,SSL_FIPS, 0,0,0}, | |
| 330 }; | |
| 331 /* Search for public key algorithm with given name and | |
| 332 * return its pkey_id if it is available. Otherwise return 0 | |
| 333 */ | |
| 334 #ifdef OPENSSL_NO_ENGINE | |
| 335 | |
| 336 static int get_optional_pkey_id(const char *pkey_name) | |
| 337 { | |
| 338 const EVP_PKEY_ASN1_METHOD *ameth; | |
| 339 int pkey_id=0; | |
| 340 ameth = EVP_PKEY_asn1_find_str(NULL,pkey_name,-1); | |
| 341 if (ameth) | |
| 342 { | |
| 343 EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth); | |
| 344 } | |
| 345 return pkey_id; | |
| 346 } | |
| 347 | |
| 348 #else | |
| 349 | |
| 350 static int get_optional_pkey_id(const char *pkey_name) | |
| 351 { | |
| 352 const EVP_PKEY_ASN1_METHOD *ameth; | |
| 353 ENGINE *tmpeng = NULL; | |
| 354 int pkey_id=0; | |
| 355 ameth = EVP_PKEY_asn1_find_str(&tmpeng,pkey_name,-1); | |
| 356 if (ameth) | |
| 357 { | |
| 358 EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth); | |
| 359 } | |
| 360 if (tmpeng) ENGINE_finish(tmpeng); | |
| 361 return pkey_id; | |
| 362 } | |
| 363 | |
| 364 #endif | |
| 365 | |
| 366 void ssl_load_ciphers(void) | |
| 367 { | |
| 368 ssl_cipher_methods[SSL_ENC_DES_IDX]= | |
| 369 EVP_get_cipherbyname(SN_des_cbc); | |
| 370 ssl_cipher_methods[SSL_ENC_3DES_IDX]= | |
| 371 EVP_get_cipherbyname(SN_des_ede3_cbc); | |
| 372 ssl_cipher_methods[SSL_ENC_RC4_IDX]= | |
| 373 EVP_get_cipherbyname(SN_rc4); | |
| 374 ssl_cipher_methods[SSL_ENC_RC2_IDX]= | |
| 375 EVP_get_cipherbyname(SN_rc2_cbc); | |
| 376 #ifndef OPENSSL_NO_IDEA | |
| 377 ssl_cipher_methods[SSL_ENC_IDEA_IDX]= | |
| 378 EVP_get_cipherbyname(SN_idea_cbc); | |
| 379 #else | |
| 380 ssl_cipher_methods[SSL_ENC_IDEA_IDX]= NULL; | |
| 381 #endif | |
| 382 ssl_cipher_methods[SSL_ENC_AES128_IDX]= | |
| 383 EVP_get_cipherbyname(SN_aes_128_cbc); | |
| 384 ssl_cipher_methods[SSL_ENC_AES256_IDX]= | |
| 385 EVP_get_cipherbyname(SN_aes_256_cbc); | |
| 386 ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX]= | |
| 387 EVP_get_cipherbyname(SN_camellia_128_cbc); | |
| 388 ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX]= | |
| 389 EVP_get_cipherbyname(SN_camellia_256_cbc); | |
| 390 ssl_cipher_methods[SSL_ENC_GOST89_IDX]= | |
| 391 EVP_get_cipherbyname(SN_gost89_cnt); | |
| 392 ssl_cipher_methods[SSL_ENC_SEED_IDX]= | |
| 393 EVP_get_cipherbyname(SN_seed_cbc); | |
| 394 | |
| 395 ssl_cipher_methods[SSL_ENC_AES128GCM_IDX]= | |
| 396 EVP_get_cipherbyname(SN_aes_128_gcm); | |
| 397 ssl_cipher_methods[SSL_ENC_AES256GCM_IDX]= | |
| 398 EVP_get_cipherbyname(SN_aes_256_gcm); | |
| 399 | |
| 400 ssl_digest_methods[SSL_MD_MD5_IDX]= | |
| 401 EVP_get_digestbyname(SN_md5); | |
| 402 ssl_mac_secret_size[SSL_MD_MD5_IDX]= | |
| 403 EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]); | |
| 404 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0); | |
| 405 ssl_digest_methods[SSL_MD_SHA1_IDX]= | |
| 406 EVP_get_digestbyname(SN_sha1); | |
| 407 ssl_mac_secret_size[SSL_MD_SHA1_IDX]= | |
| 408 EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]); | |
| 409 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0); | |
| 410 ssl_digest_methods[SSL_MD_GOST94_IDX]= | |
| 411 EVP_get_digestbyname(SN_id_GostR3411_94); | |
| 412 if (ssl_digest_methods[SSL_MD_GOST94_IDX]) | |
| 413 { | |
| 414 ssl_mac_secret_size[SSL_MD_GOST94_IDX]= | |
| 415 EVP_MD_size(ssl_digest_methods[SSL_MD_GOST94_IDX]); | |
| 416 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0); | |
| 417 } | |
| 418 ssl_digest_methods[SSL_MD_GOST89MAC_IDX]= | |
| 419 EVP_get_digestbyname(SN_id_Gost28147_89_MAC); | |
| 420 ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("go
st-mac"); | |
| 421 if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) { | |
| 422 ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX]=32; | |
| 423 } | |
| 424 | |
| 425 ssl_digest_methods[SSL_MD_SHA256_IDX]= | |
| 426 EVP_get_digestbyname(SN_sha256); | |
| 427 ssl_mac_secret_size[SSL_MD_SHA256_IDX]= | |
| 428 EVP_MD_size(ssl_digest_methods[SSL_MD_SHA256_IDX]); | |
| 429 ssl_digest_methods[SSL_MD_SHA384_IDX]= | |
| 430 EVP_get_digestbyname(SN_sha384); | |
| 431 ssl_mac_secret_size[SSL_MD_SHA384_IDX]= | |
| 432 EVP_MD_size(ssl_digest_methods[SSL_MD_SHA384_IDX]); | |
| 433 } | |
| 434 #ifndef OPENSSL_NO_COMP | |
| 435 | |
| 436 static int sk_comp_cmp(const SSL_COMP * const *a, | |
| 437 const SSL_COMP * const *b) | |
| 438 { | |
| 439 return((*a)->id-(*b)->id); | |
| 440 } | |
| 441 | |
| 442 static void load_builtin_compressions(void) | |
| 443 { | |
| 444 int got_write_lock = 0; | |
| 445 | |
| 446 CRYPTO_r_lock(CRYPTO_LOCK_SSL); | |
| 447 if (ssl_comp_methods == NULL) | |
| 448 { | |
| 449 CRYPTO_r_unlock(CRYPTO_LOCK_SSL); | |
| 450 CRYPTO_w_lock(CRYPTO_LOCK_SSL); | |
| 451 got_write_lock = 1; | |
| 452 | |
| 453 if (ssl_comp_methods == NULL) | |
| 454 { | |
| 455 SSL_COMP *comp = NULL; | |
| 456 | |
| 457 MemCheck_off(); | |
| 458 ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp); | |
| 459 if (ssl_comp_methods != NULL) | |
| 460 { | |
| 461 comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)
); | |
| 462 if (comp != NULL) | |
| 463 { | |
| 464 comp->method=COMP_zlib(); | |
| 465 if (comp->method | |
| 466 && comp->method->type == NID_und
ef) | |
| 467 OPENSSL_free(comp); | |
| 468 else | |
| 469 { | |
| 470 comp->id=SSL_COMP_ZLIB_IDX; | |
| 471 comp->name=comp->method->name; | |
| 472 sk_SSL_COMP_push(ssl_comp_method
s,comp); | |
| 473 } | |
| 474 } | |
| 475 sk_SSL_COMP_sort(ssl_comp_methods); | |
| 476 } | |
| 477 MemCheck_on(); | |
| 478 } | |
| 479 } | |
| 480 | |
| 481 if (got_write_lock) | |
| 482 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); | |
| 483 else | |
| 484 CRYPTO_r_unlock(CRYPTO_LOCK_SSL); | |
| 485 } | |
| 486 #endif | |
| 487 | |
| 488 /* ssl_cipher_get_comp sets |comp| to the correct SSL_COMP for the given | |
| 489 * session and returns 1. On error it returns 0. */ | |
| 490 int ssl_cipher_get_comp(const SSL_SESSION *s, SSL_COMP **comp) | |
| 491 { | |
| 492 int i; | |
| 493 | |
| 494 SSL_COMP ctmp; | |
| 495 #ifndef OPENSSL_NO_COMP | |
| 496 load_builtin_compressions(); | |
| 497 #endif | |
| 498 | |
| 499 *comp=NULL; | |
| 500 ctmp.id=s->compress_meth; | |
| 501 if (ssl_comp_methods != NULL) | |
| 502 { | |
| 503 i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp); | |
| 504 if (i >= 0) | |
| 505 *comp=sk_SSL_COMP_value(ssl_comp_methods,i); | |
| 506 else | |
| 507 *comp=NULL; | |
| 508 } | |
| 509 | |
| 510 return 1; | |
| 511 } | |
| 512 | |
| 513 /* ssl_cipher_get_evp_aead sets |*aead| to point to the correct EVP_AEAD object | |
| 514 * for |s->cipher|. It returns 1 on success and 0 on error. */ | |
| 515 int ssl_cipher_get_evp_aead(const SSL_SESSION *s, const EVP_AEAD **aead) | |
| 516 { | |
| 517 const SSL_CIPHER *c = s->cipher; | |
| 518 | |
| 519 *aead = NULL; | |
| 520 | |
| 521 if (c == NULL) | |
| 522 return 0; | |
| 523 if ((c->algorithm2 & SSL_CIPHER_ALGORITHM2_AEAD) == 0) | |
| 524 return 0; | |
| 525 | |
| 526 #ifndef OPENSSL_NO_AES | |
| 527 switch (c->algorithm_enc) | |
| 528 { | |
| 529 case SSL_AES128GCM: | |
| 530 *aead = EVP_aead_aes_128_gcm(); | |
| 531 return 1; | |
| 532 case SSL_CHACHA20POLY1305: | |
| 533 *aead = EVP_aead_chacha20_poly1305(); | |
| 534 return 1; | |
| 535 } | |
| 536 #endif | |
| 537 | |
| 538 return 0; | |
| 539 } | |
| 540 | |
| 541 int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, | |
| 542 const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size) | |
| 543 { | |
| 544 int i; | |
| 545 const SSL_CIPHER *c; | |
| 546 | |
| 547 c=s->cipher; | |
| 548 if (c == NULL) return(0); | |
| 549 | |
| 550 /* This function doesn't deal with EVP_AEAD. See | |
| 551 * |ssl_cipher_get_aead_evp|. */ | |
| 552 if (c->algorithm2 & SSL_CIPHER_ALGORITHM2_AEAD) | |
| 553 return(0); | |
| 554 | |
| 555 if ((enc == NULL) || (md == NULL)) return(0); | |
| 556 | |
| 557 switch (c->algorithm_enc) | |
| 558 { | |
| 559 case SSL_DES: | |
| 560 i=SSL_ENC_DES_IDX; | |
| 561 break; | |
| 562 case SSL_3DES: | |
| 563 i=SSL_ENC_3DES_IDX; | |
| 564 break; | |
| 565 case SSL_RC4: | |
| 566 i=SSL_ENC_RC4_IDX; | |
| 567 break; | |
| 568 case SSL_RC2: | |
| 569 i=SSL_ENC_RC2_IDX; | |
| 570 break; | |
| 571 case SSL_IDEA: | |
| 572 i=SSL_ENC_IDEA_IDX; | |
| 573 break; | |
| 574 case SSL_eNULL: | |
| 575 i=SSL_ENC_NULL_IDX; | |
| 576 break; | |
| 577 case SSL_AES128: | |
| 578 i=SSL_ENC_AES128_IDX; | |
| 579 break; | |
| 580 case SSL_AES256: | |
| 581 i=SSL_ENC_AES256_IDX; | |
| 582 break; | |
| 583 case SSL_CAMELLIA128: | |
| 584 i=SSL_ENC_CAMELLIA128_IDX; | |
| 585 break; | |
| 586 case SSL_CAMELLIA256: | |
| 587 i=SSL_ENC_CAMELLIA256_IDX; | |
| 588 break; | |
| 589 case SSL_eGOST2814789CNT: | |
| 590 i=SSL_ENC_GOST89_IDX; | |
| 591 break; | |
| 592 case SSL_SEED: | |
| 593 i=SSL_ENC_SEED_IDX; | |
| 594 break; | |
| 595 case SSL_AES128GCM: | |
| 596 i=SSL_ENC_AES128GCM_IDX; | |
| 597 break; | |
| 598 case SSL_AES256GCM: | |
| 599 i=SSL_ENC_AES256GCM_IDX; | |
| 600 break; | |
| 601 default: | |
| 602 i= -1; | |
| 603 break; | |
| 604 } | |
| 605 | |
| 606 if ((i < 0) || (i > SSL_ENC_NUM_IDX)) | |
| 607 *enc=NULL; | |
| 608 else | |
| 609 { | |
| 610 if (i == SSL_ENC_NULL_IDX) | |
| 611 *enc=EVP_enc_null(); | |
| 612 else | |
| 613 *enc=ssl_cipher_methods[i]; | |
| 614 } | |
| 615 | |
| 616 switch (c->algorithm_mac) | |
| 617 { | |
| 618 case SSL_MD5: | |
| 619 i=SSL_MD_MD5_IDX; | |
| 620 break; | |
| 621 case SSL_SHA1: | |
| 622 i=SSL_MD_SHA1_IDX; | |
| 623 break; | |
| 624 case SSL_SHA256: | |
| 625 i=SSL_MD_SHA256_IDX; | |
| 626 break; | |
| 627 case SSL_SHA384: | |
| 628 i=SSL_MD_SHA384_IDX; | |
| 629 break; | |
| 630 case SSL_GOST94: | |
| 631 i = SSL_MD_GOST94_IDX; | |
| 632 break; | |
| 633 case SSL_GOST89MAC: | |
| 634 i = SSL_MD_GOST89MAC_IDX; | |
| 635 break; | |
| 636 default: | |
| 637 i= -1; | |
| 638 break; | |
| 639 } | |
| 640 if ((i < 0) || (i > SSL_MD_NUM_IDX)) | |
| 641 { | |
| 642 *md=NULL; | |
| 643 if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef; | |
| 644 if (mac_secret_size!=NULL) *mac_secret_size = 0; | |
| 645 if (c->algorithm_mac == SSL_AEAD) | |
| 646 mac_pkey_type = NULL; | |
| 647 } | |
| 648 else | |
| 649 { | |
| 650 *md=ssl_digest_methods[i]; | |
| 651 if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i]; | |
| 652 if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_siz
e[i]; | |
| 653 } | |
| 654 | |
| 655 if ((*enc != NULL) && | |
| 656 (*md != NULL || (EVP_CIPHER_flags(*enc)&EVP_CIPH_FLAG_AEAD_CIPHER))
&& | |
| 657 (!mac_pkey_type||*mac_pkey_type != NID_undef)) | |
| 658 { | |
| 659 const EVP_CIPHER *evp; | |
| 660 | |
| 661 if (s->ssl_version>>8 != TLS1_VERSION_MAJOR || | |
| 662 s->ssl_version < TLS1_VERSION) | |
| 663 return 1; | |
| 664 | |
| 665 #ifdef OPENSSL_FIPS | |
| 666 if (FIPS_mode()) | |
| 667 return 1; | |
| 668 #endif | |
| 669 | |
| 670 if (c->algorithm_enc == SSL_RC4 && | |
| 671 c->algorithm_mac == SSL_MD5 && | |
| 672 (evp=EVP_get_cipherbyname("RC4-HMAC-MD5"))) | |
| 673 *enc = evp, *md = NULL; | |
| 674 else if (c->algorithm_enc == SSL_AES128 && | |
| 675 c->algorithm_mac == SSL_SHA1 && | |
| 676 (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1"))) | |
| 677 *enc = evp, *md = NULL; | |
| 678 else if (c->algorithm_enc == SSL_AES256 && | |
| 679 c->algorithm_mac == SSL_SHA1 && | |
| 680 (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1"))) | |
| 681 *enc = evp, *md = NULL; | |
| 682 return(1); | |
| 683 } | |
| 684 else | |
| 685 return(0); | |
| 686 } | |
| 687 | |
| 688 int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md) | |
| 689 { | |
| 690 if (idx <0||idx>=SSL_MD_NUM_IDX) | |
| 691 { | |
| 692 return 0; | |
| 693 } | |
| 694 *mask = ssl_handshake_digest_flag[idx]; | |
| 695 if (*mask) | |
| 696 *md = ssl_digest_methods[idx]; | |
| 697 else | |
| 698 *md = NULL; | |
| 699 return 1; | |
| 700 } | |
| 701 | |
| 702 #define ITEM_SEP(a) \ | |
| 703 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) | |
| 704 | |
| 705 static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, | |
| 706 CIPHER_ORDER **tail) | |
| 707 { | |
| 708 if (curr == *tail) return; | |
| 709 if (curr == *head) | |
| 710 *head=curr->next; | |
| 711 if (curr->prev != NULL) | |
| 712 curr->prev->next=curr->next; | |
| 713 if (curr->next != NULL) | |
| 714 curr->next->prev=curr->prev; | |
| 715 (*tail)->next=curr; | |
| 716 curr->prev= *tail; | |
| 717 curr->next=NULL; | |
| 718 *tail=curr; | |
| 719 } | |
| 720 | |
| 721 static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, | |
| 722 CIPHER_ORDER **tail) | |
| 723 { | |
| 724 if (curr == *head) return; | |
| 725 if (curr == *tail) | |
| 726 *tail=curr->prev; | |
| 727 if (curr->next != NULL) | |
| 728 curr->next->prev=curr->prev; | |
| 729 if (curr->prev != NULL) | |
| 730 curr->prev->next=curr->next; | |
| 731 (*head)->prev=curr; | |
| 732 curr->next= *head; | |
| 733 curr->prev=NULL; | |
| 734 *head=curr; | |
| 735 } | |
| 736 | |
| 737 static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, un
signed long *enc, unsigned long *mac, unsigned long *ssl) | |
| 738 { | |
| 739 *mkey = 0; | |
| 740 *auth = 0; | |
| 741 *enc = 0; | |
| 742 *mac = 0; | |
| 743 *ssl = 0; | |
| 744 | |
| 745 #ifdef OPENSSL_NO_RSA | |
| 746 *mkey |= SSL_kRSA; | |
| 747 *auth |= SSL_aRSA; | |
| 748 #endif | |
| 749 #ifdef OPENSSL_NO_DSA | |
| 750 *auth |= SSL_aDSS; | |
| 751 #endif | |
| 752 *mkey |= SSL_kDHr|SSL_kDHd; /* no such ciphersuites supported! */ | |
| 753 *auth |= SSL_aDH; | |
| 754 #ifdef OPENSSL_NO_DH | |
| 755 *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH; | |
| 756 *auth |= SSL_aDH; | |
| 757 #endif | |
| 758 #ifdef OPENSSL_NO_KRB5 | |
| 759 *mkey |= SSL_kKRB5; | |
| 760 *auth |= SSL_aKRB5; | |
| 761 #endif | |
| 762 #ifdef OPENSSL_NO_ECDSA | |
| 763 *auth |= SSL_aECDSA; | |
| 764 #endif | |
| 765 #ifdef OPENSSL_NO_ECDH | |
| 766 *mkey |= SSL_kECDHe|SSL_kECDHr; | |
| 767 *auth |= SSL_aECDH; | |
| 768 #endif | |
| 769 #ifdef OPENSSL_NO_PSK | |
| 770 *mkey |= SSL_kPSK; | |
| 771 *auth |= SSL_aPSK; | |
| 772 #endif | |
| 773 #ifdef OPENSSL_NO_SRP | |
| 774 *mkey |= SSL_kSRP; | |
| 775 #endif | |
| 776 /* Check for presence of GOST 34.10 algorithms, and if they | |
| 777 * do not present, disable appropriate auth and key exchange */ | |
| 778 if (!get_optional_pkey_id("gost94")) { | |
| 779 *auth |= SSL_aGOST94; | |
| 780 } | |
| 781 if (!get_optional_pkey_id("gost2001")) { | |
| 782 *auth |= SSL_aGOST01; | |
| 783 } | |
| 784 /* Disable GOST key exchange if no GOST signature algs are available * *
/ | |
| 785 if ((*auth & (SSL_aGOST94|SSL_aGOST01)) == (SSL_aGOST94|SSL_aGOST01)) { | |
| 786 *mkey |= SSL_kGOST; | |
| 787 } | |
| 788 #ifdef SSL_FORBID_ENULL | |
| 789 *enc |= SSL_eNULL; | |
| 790 #endif | |
| 791 | |
| 792 | |
| 793 | |
| 794 *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0; | |
| 795 *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0; | |
| 796 *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0; | |
| 797 *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0; | |
| 798 *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0; | |
| 799 *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0; | |
| 800 *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0; | |
| 801 *enc |= (ssl_cipher_methods[SSL_ENC_AES128GCM_IDX] == NULL) ? SSL_AES128
GCM:0; | |
| 802 *enc |= (ssl_cipher_methods[SSL_ENC_AES256GCM_IDX] == NULL) ? SSL_AES256
GCM:0; | |
| 803 *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAME
LLIA128:0; | |
| 804 *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAME
LLIA256:0; | |
| 805 *enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814
789CNT:0; | |
| 806 *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED:0; | |
| 807 | |
| 808 *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0; | |
| 809 *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0; | |
| 810 *mac |= (ssl_digest_methods[SSL_MD_SHA256_IDX] == NULL) ? SSL_SHA256:0; | |
| 811 *mac |= (ssl_digest_methods[SSL_MD_SHA384_IDX] == NULL) ? SSL_SHA384:0; | |
| 812 *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94:0; | |
| 813 *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL || ssl_mac_pke
y_id[SSL_MD_GOST89MAC_IDX]==NID_undef)? SSL_GOST89MAC:0; | |
| 814 | |
| 815 } | |
| 816 | |
| 817 static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, | |
| 818 int num_of_ciphers, | |
| 819 unsigned long disabled_mkey, unsigned long disabled_auth, | |
| 820 unsigned long disabled_enc, unsigned long disabled_mac, | |
| 821 unsigned long disabled_ssl, | |
| 822 CIPHER_ORDER *co_list, | |
| 823 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) | |
| 824 { | |
| 825 int i, co_list_num; | |
| 826 const SSL_CIPHER *c; | |
| 827 | |
| 828 /* | |
| 829 * We have num_of_ciphers descriptions compiled in, depending on the | |
| 830 * method selected (SSLv2 and/or SSLv3, TLSv1 etc). | |
| 831 * These will later be sorted in a linked list with at most num | |
| 832 * entries. | |
| 833 */ | |
| 834 | |
| 835 /* Get the initial list of ciphers */ | |
| 836 co_list_num = 0; /* actual count of ciphers */ | |
| 837 for (i = 0; i < num_of_ciphers; i++) | |
| 838 { | |
| 839 c = ssl_method->get_cipher(i); | |
| 840 /* drop those that use any of that is not available */ | |
| 841 if ((c != NULL) && c->valid && | |
| 842 #ifdef OPENSSL_FIPS | |
| 843 (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) && | |
| 844 #endif | |
| 845 !(c->algorithm_mkey & disabled_mkey) && | |
| 846 !(c->algorithm_auth & disabled_auth) && | |
| 847 !(c->algorithm_enc & disabled_enc) && | |
| 848 !(c->algorithm_mac & disabled_mac) && | |
| 849 !(c->algorithm_ssl & disabled_ssl)) | |
| 850 { | |
| 851 co_list[co_list_num].cipher = c; | |
| 852 co_list[co_list_num].next = NULL; | |
| 853 co_list[co_list_num].prev = NULL; | |
| 854 co_list[co_list_num].active = 0; | |
| 855 co_list_num++; | |
| 856 #ifdef KSSL_DEBUG | |
| 857 printf("\t%d: %s %lx %lx %lx\n",i,c->name,c->id,c->algor
ithm_mkey,c->algorithm_auth); | |
| 858 #endif /* KSSL_DEBUG */ | |
| 859 /* | |
| 860 if (!sk_push(ca_list,(char *)c)) goto err; | |
| 861 */ | |
| 862 } | |
| 863 } | |
| 864 | |
| 865 /* | |
| 866 * Prepare linked list from list entries | |
| 867 */ | |
| 868 if (co_list_num > 0) | |
| 869 { | |
| 870 co_list[0].prev = NULL; | |
| 871 | |
| 872 if (co_list_num > 1) | |
| 873 { | |
| 874 co_list[0].next = &co_list[1]; | |
| 875 | |
| 876 for (i = 1; i < co_list_num - 1; i++) | |
| 877 { | |
| 878 co_list[i].prev = &co_list[i - 1]; | |
| 879 co_list[i].next = &co_list[i + 1]; | |
| 880 } | |
| 881 | |
| 882 co_list[co_list_num - 1].prev = &co_list[co_list_num - 2
]; | |
| 883 } | |
| 884 | |
| 885 co_list[co_list_num - 1].next = NULL; | |
| 886 | |
| 887 *head_p = &co_list[0]; | |
| 888 *tail_p = &co_list[co_list_num - 1]; | |
| 889 } | |
| 890 } | |
| 891 | |
| 892 static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, | |
| 893 int num_of_group_aliases, | |
| 894 unsigned long disabled_mkey, unsigned long disabled_auth
, | |
| 895 unsigned long disabled_enc, unsigned long disabled_mac, | |
| 896 unsigned long disabled_ssl, | |
| 897 CIPHER_ORDER *head) | |
| 898 { | |
| 899 CIPHER_ORDER *ciph_curr; | |
| 900 const SSL_CIPHER **ca_curr; | |
| 901 int i; | |
| 902 unsigned long mask_mkey = ~disabled_mkey; | |
| 903 unsigned long mask_auth = ~disabled_auth; | |
| 904 unsigned long mask_enc = ~disabled_enc; | |
| 905 unsigned long mask_mac = ~disabled_mac; | |
| 906 unsigned long mask_ssl = ~disabled_ssl; | |
| 907 | |
| 908 /* | |
| 909 * First, add the real ciphers as already collected | |
| 910 */ | |
| 911 ciph_curr = head; | |
| 912 ca_curr = ca_list; | |
| 913 while (ciph_curr != NULL) | |
| 914 { | |
| 915 *ca_curr = ciph_curr->cipher; | |
| 916 ca_curr++; | |
| 917 ciph_curr = ciph_curr->next; | |
| 918 } | |
| 919 | |
| 920 /* | |
| 921 * Now we add the available ones from the cipher_aliases[] table. | |
| 922 * They represent either one or more algorithms, some of which | |
| 923 * in any affected category must be supported (set in enabled_mask), | |
| 924 * or represent a cipher strength value (will be added in any case becau
se algorithms=0). | |
| 925 */ | |
| 926 for (i = 0; i < num_of_group_aliases; i++) | |
| 927 { | |
| 928 unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey; | |
| 929 unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth; | |
| 930 unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc; | |
| 931 unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac; | |
| 932 unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl; | |
| 933 | |
| 934 if (algorithm_mkey) | |
| 935 if ((algorithm_mkey & mask_mkey) == 0) | |
| 936 continue; | |
| 937 | |
| 938 if (algorithm_auth) | |
| 939 if ((algorithm_auth & mask_auth) == 0) | |
| 940 continue; | |
| 941 | |
| 942 if (algorithm_enc) | |
| 943 if ((algorithm_enc & mask_enc) == 0) | |
| 944 continue; | |
| 945 | |
| 946 if (algorithm_mac) | |
| 947 if ((algorithm_mac & mask_mac) == 0) | |
| 948 continue; | |
| 949 | |
| 950 if (algorithm_ssl) | |
| 951 if ((algorithm_ssl & mask_ssl) == 0) | |
| 952 continue; | |
| 953 | |
| 954 *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); | |
| 955 ca_curr++; | |
| 956 } | |
| 957 | |
| 958 *ca_curr = NULL; /* end of list */ | |
| 959 } | |
| 960 | |
| 961 static void ssl_cipher_apply_rule(unsigned long cipher_id, | |
| 962 unsigned long alg_mkey, unsigned long alg_auth, | |
| 963 unsigned long alg_enc, unsigned long alg_mac, | |
| 964 unsigned long alg_ssl, | |
| 965 unsigned long algo_strength, | |
| 966 int rule, int strength_bits, | |
| 967 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) | |
| 968 { | |
| 969 CIPHER_ORDER *head, *tail, *curr, *curr2, *last; | |
| 970 const SSL_CIPHER *cp; | |
| 971 int reverse = 0; | |
| 972 | |
| 973 #ifdef CIPHER_DEBUG | |
| 974 printf("Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n
", | |
| 975 rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_streng
th, strength_bits); | |
| 976 #endif | |
| 977 | |
| 978 if (rule == CIPHER_DEL) | |
| 979 reverse = 1; /* needed to maintain sorting between currently del
eted ciphers */ | |
| 980 | |
| 981 head = *head_p; | |
| 982 tail = *tail_p; | |
| 983 | |
| 984 if (reverse) | |
| 985 { | |
| 986 curr = tail; | |
| 987 last = head; | |
| 988 } | |
| 989 else | |
| 990 { | |
| 991 curr = head; | |
| 992 last = tail; | |
| 993 } | |
| 994 | |
| 995 curr2 = curr; | |
| 996 for (;;) | |
| 997 { | |
| 998 if ((curr == NULL) || (curr == last)) break; | |
| 999 curr = curr2; | |
| 1000 curr2 = reverse ? curr->prev : curr->next; | |
| 1001 | |
| 1002 cp = curr->cipher; | |
| 1003 | |
| 1004 /* | |
| 1005 * Selection criteria is either the value of strength_bits | |
| 1006 * or the algorithms used. | |
| 1007 */ | |
| 1008 if (strength_bits >= 0) | |
| 1009 { | |
| 1010 if (strength_bits != cp->strength_bits) | |
| 1011 continue; | |
| 1012 } | |
| 1013 else | |
| 1014 { | |
| 1015 #ifdef CIPHER_DEBUG | |
| 1016 printf("\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08l
x Algo_strength = %08lx\n", cp->name, cp->algorithm_mkey, cp->algorithm_auth, cp
->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl, cp->algo_strength); | |
| 1017 #endif | |
| 1018 | |
| 1019 if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) | |
| 1020 continue; | |
| 1021 if (alg_auth && !(alg_auth & cp->algorithm_auth)) | |
| 1022 continue; | |
| 1023 if (alg_enc && !(alg_enc & cp->algorithm_enc)) | |
| 1024 continue; | |
| 1025 if (alg_mac && !(alg_mac & cp->algorithm_mac)) | |
| 1026 continue; | |
| 1027 if (alg_ssl && !(alg_ssl & cp->algorithm_ssl)) | |
| 1028 continue; | |
| 1029 if ((algo_strength & SSL_EXP_MASK) && !(algo_strength &
SSL_EXP_MASK & cp->algo_strength)) | |
| 1030 continue; | |
| 1031 if ((algo_strength & SSL_STRONG_MASK) && !(algo_strength
& SSL_STRONG_MASK & cp->algo_strength)) | |
| 1032 continue; | |
| 1033 } | |
| 1034 | |
| 1035 #ifdef CIPHER_DEBUG | |
| 1036 printf("Action = %d\n", rule); | |
| 1037 #endif | |
| 1038 | |
| 1039 /* add the cipher if it has not been added yet. */ | |
| 1040 if (rule == CIPHER_ADD) | |
| 1041 { | |
| 1042 /* reverse == 0 */ | |
| 1043 if (!curr->active) | |
| 1044 { | |
| 1045 ll_append_tail(&head, curr, &tail); | |
| 1046 curr->active = 1; | |
| 1047 } | |
| 1048 } | |
| 1049 /* Move the added cipher to this location */ | |
| 1050 else if (rule == CIPHER_ORD) | |
| 1051 { | |
| 1052 /* reverse == 0 */ | |
| 1053 if (curr->active) | |
| 1054 { | |
| 1055 ll_append_tail(&head, curr, &tail); | |
| 1056 } | |
| 1057 } | |
| 1058 else if (rule == CIPHER_DEL) | |
| 1059 { | |
| 1060 /* reverse == 1 */ | |
| 1061 if (curr->active) | |
| 1062 { | |
| 1063 /* most recently deleted ciphersuites get best p
ositions | |
| 1064 * for any future CIPHER_ADD (note that the CIPH
ER_DEL loop | |
| 1065 * works in reverse to maintain the order) */ | |
| 1066 ll_append_head(&head, curr, &tail); | |
| 1067 curr->active = 0; | |
| 1068 } | |
| 1069 } | |
| 1070 else if (rule == CIPHER_KILL) | |
| 1071 { | |
| 1072 /* reverse == 0 */ | |
| 1073 if (head == curr) | |
| 1074 head = curr->next; | |
| 1075 else | |
| 1076 curr->prev->next = curr->next; | |
| 1077 if (tail == curr) | |
| 1078 tail = curr->prev; | |
| 1079 curr->active = 0; | |
| 1080 if (curr->next != NULL) | |
| 1081 curr->next->prev = curr->prev; | |
| 1082 if (curr->prev != NULL) | |
| 1083 curr->prev->next = curr->next; | |
| 1084 curr->next = NULL; | |
| 1085 curr->prev = NULL; | |
| 1086 } | |
| 1087 } | |
| 1088 | |
| 1089 *head_p = head; | |
| 1090 *tail_p = tail; | |
| 1091 } | |
| 1092 | |
| 1093 static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, | |
| 1094 CIPHER_ORDER **tail_p) | |
| 1095 { | |
| 1096 int max_strength_bits, i, *number_uses; | |
| 1097 CIPHER_ORDER *curr; | |
| 1098 | |
| 1099 /* | |
| 1100 * This routine sorts the ciphers with descending strength. The sorting | |
| 1101 * must keep the pre-sorted sequence, so we apply the normal sorting | |
| 1102 * routine as '+' movement to the end of the list. | |
| 1103 */ | |
| 1104 max_strength_bits = 0; | |
| 1105 curr = *head_p; | |
| 1106 while (curr != NULL) | |
| 1107 { | |
| 1108 if (curr->active && | |
| 1109 (curr->cipher->strength_bits > max_strength_bits)) | |
| 1110 max_strength_bits = curr->cipher->strength_bits; | |
| 1111 curr = curr->next; | |
| 1112 } | |
| 1113 | |
| 1114 number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int)); | |
| 1115 if (!number_uses) | |
| 1116 { | |
| 1117 SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE); | |
| 1118 return(0); | |
| 1119 } | |
| 1120 memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int)); | |
| 1121 | |
| 1122 /* | |
| 1123 * Now find the strength_bits values actually used | |
| 1124 */ | |
| 1125 curr = *head_p; | |
| 1126 while (curr != NULL) | |
| 1127 { | |
| 1128 if (curr->active) | |
| 1129 number_uses[curr->cipher->strength_bits]++; | |
| 1130 curr = curr->next; | |
| 1131 } | |
| 1132 /* | |
| 1133 * Go through the list of used strength_bits values in descending | |
| 1134 * order. | |
| 1135 */ | |
| 1136 for (i = max_strength_bits; i >= 0; i--) | |
| 1137 if (number_uses[i] > 0) | |
| 1138 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i
, head_p, tail_p); | |
| 1139 | |
| 1140 OPENSSL_free(number_uses); | |
| 1141 return(1); | |
| 1142 } | |
| 1143 | |
| 1144 static int ssl_cipher_process_rulestr(const char *rule_str, | |
| 1145 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p, | |
| 1146 const SSL_CIPHER **ca_list) | |
| 1147 { | |
| 1148 unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_streng
th; | |
| 1149 const char *l, *buf; | |
| 1150 int j, multi, found, rule, retval, ok, buflen; | |
| 1151 unsigned long cipher_id = 0; | |
| 1152 char ch; | |
| 1153 | |
| 1154 retval = 1; | |
| 1155 l = rule_str; | |
| 1156 for (;;) | |
| 1157 { | |
| 1158 ch = *l; | |
| 1159 | |
| 1160 if (ch == '\0') | |
| 1161 break; /* done */ | |
| 1162 if (ch == '-') | |
| 1163 { rule = CIPHER_DEL; l++; } | |
| 1164 else if (ch == '+') | |
| 1165 { rule = CIPHER_ORD; l++; } | |
| 1166 else if (ch == '!') | |
| 1167 { rule = CIPHER_KILL; l++; } | |
| 1168 else if (ch == '@') | |
| 1169 { rule = CIPHER_SPECIAL; l++; } | |
| 1170 else | |
| 1171 { rule = CIPHER_ADD; } | |
| 1172 | |
| 1173 if (ITEM_SEP(ch)) | |
| 1174 { | |
| 1175 l++; | |
| 1176 continue; | |
| 1177 } | |
| 1178 | |
| 1179 alg_mkey = 0; | |
| 1180 alg_auth = 0; | |
| 1181 alg_enc = 0; | |
| 1182 alg_mac = 0; | |
| 1183 alg_ssl = 0; | |
| 1184 algo_strength = 0; | |
| 1185 | |
| 1186 for (;;) | |
| 1187 { | |
| 1188 ch = *l; | |
| 1189 buf = l; | |
| 1190 buflen = 0; | |
| 1191 #ifndef CHARSET_EBCDIC | |
| 1192 while ( ((ch >= 'A') && (ch <= 'Z')) || | |
| 1193 ((ch >= '0') && (ch <= '9')) || | |
| 1194 ((ch >= 'a') && (ch <= 'z')) || | |
| 1195 (ch == '-') || (ch == '.')) | |
| 1196 #else | |
| 1197 while ( isalnum(ch) || (ch == '-') || (ch == '.')) | |
| 1198 #endif | |
| 1199 { | |
| 1200 ch = *(++l); | |
| 1201 buflen++; | |
| 1202 } | |
| 1203 | |
| 1204 if (buflen == 0) | |
| 1205 { | |
| 1206 /* | |
| 1207 * We hit something we cannot deal with, | |
| 1208 * it is no command or separator nor | |
| 1209 * alphanumeric, so we call this an error. | |
| 1210 */ | |
| 1211 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
| 1212 SSL_R_INVALID_COMMAND); | |
| 1213 retval = found = 0; | |
| 1214 l++; | |
| 1215 break; | |
| 1216 } | |
| 1217 | |
| 1218 if (rule == CIPHER_SPECIAL) | |
| 1219 { | |
| 1220 found = 0; /* unused -- avoid compiler warning *
/ | |
| 1221 break; /* special treatment */ | |
| 1222 } | |
| 1223 | |
| 1224 /* check for multi-part specification */ | |
| 1225 if (ch == '+') | |
| 1226 { | |
| 1227 multi=1; | |
| 1228 l++; | |
| 1229 } | |
| 1230 else | |
| 1231 multi=0; | |
| 1232 | |
| 1233 /* | |
| 1234 * Now search for the cipher alias in the ca_list. Be ca
reful | |
| 1235 * with the strncmp, because the "buflen" limitation | |
| 1236 * will make the rule "ADH:SOME" and the cipher | |
| 1237 * "ADH-MY-CIPHER" look like a match for buflen=3. | |
| 1238 * So additionally check whether the cipher name found | |
| 1239 * has the correct length. We can save a strlen() call: | |
| 1240 * just checking for the '\0' at the right place is | |
| 1241 * sufficient, we have to strncmp() anyway. (We cannot | |
| 1242 * use strcmp(), because buf is not '\0' terminated.) | |
| 1243 */ | |
| 1244 j = found = 0; | |
| 1245 cipher_id = 0; | |
| 1246 while (ca_list[j]) | |
| 1247 { | |
| 1248 if (!strncmp(buf, ca_list[j]->name, buflen) && | |
| 1249 (ca_list[j]->name[buflen] == '\0')) | |
| 1250 { | |
| 1251 found = 1; | |
| 1252 break; | |
| 1253 } | |
| 1254 else | |
| 1255 j++; | |
| 1256 } | |
| 1257 | |
| 1258 if (!found) | |
| 1259 break; /* ignore this entry */ | |
| 1260 | |
| 1261 if (ca_list[j]->algorithm_mkey) | |
| 1262 { | |
| 1263 if (alg_mkey) | |
| 1264 { | |
| 1265 alg_mkey &= ca_list[j]->algorithm_mkey; | |
| 1266 if (!alg_mkey) { found = 0; break; } | |
| 1267 } | |
| 1268 else | |
| 1269 alg_mkey = ca_list[j]->algorithm_mkey; | |
| 1270 } | |
| 1271 | |
| 1272 if (ca_list[j]->algorithm_auth) | |
| 1273 { | |
| 1274 if (alg_auth) | |
| 1275 { | |
| 1276 alg_auth &= ca_list[j]->algorithm_auth; | |
| 1277 if (!alg_auth) { found = 0; break; } | |
| 1278 } | |
| 1279 else | |
| 1280 alg_auth = ca_list[j]->algorithm_auth; | |
| 1281 } | |
| 1282 | |
| 1283 if (ca_list[j]->algorithm_enc) | |
| 1284 { | |
| 1285 if (alg_enc) | |
| 1286 { | |
| 1287 alg_enc &= ca_list[j]->algorithm_enc; | |
| 1288 if (!alg_enc) { found = 0; break; } | |
| 1289 } | |
| 1290 else | |
| 1291 alg_enc = ca_list[j]->algorithm_enc; | |
| 1292 } | |
| 1293 | |
| 1294 if (ca_list[j]->algorithm_mac) | |
| 1295 { | |
| 1296 if (alg_mac) | |
| 1297 { | |
| 1298 alg_mac &= ca_list[j]->algorithm_mac; | |
| 1299 if (!alg_mac) { found = 0; break; } | |
| 1300 } | |
| 1301 else | |
| 1302 alg_mac = ca_list[j]->algorithm_mac; | |
| 1303 } | |
| 1304 | |
| 1305 if (ca_list[j]->algo_strength & SSL_EXP_MASK) | |
| 1306 { | |
| 1307 if (algo_strength & SSL_EXP_MASK) | |
| 1308 { | |
| 1309 algo_strength &= (ca_list[j]->algo_stren
gth & SSL_EXP_MASK) | ~SSL_EXP_MASK; | |
| 1310 if (!(algo_strength & SSL_EXP_MASK)) { f
ound = 0; break; } | |
| 1311 } | |
| 1312 else | |
| 1313 algo_strength |= ca_list[j]->algo_streng
th & SSL_EXP_MASK; | |
| 1314 } | |
| 1315 | |
| 1316 if (ca_list[j]->algo_strength & SSL_STRONG_MASK) | |
| 1317 { | |
| 1318 if (algo_strength & SSL_STRONG_MASK) | |
| 1319 { | |
| 1320 algo_strength &= (ca_list[j]->algo_stren
gth & SSL_STRONG_MASK) | ~SSL_STRONG_MASK; | |
| 1321 if (!(algo_strength & SSL_STRONG_MASK))
{ found = 0; break; } | |
| 1322 } | |
| 1323 else | |
| 1324 algo_strength |= ca_list[j]->algo_streng
th & SSL_STRONG_MASK; | |
| 1325 } | |
| 1326 | |
| 1327 if (ca_list[j]->valid) | |
| 1328 { | |
| 1329 /* explicit ciphersuite found; its protocol vers
ion | |
| 1330 * does not become part of the search pattern!*/ | |
| 1331 | |
| 1332 cipher_id = ca_list[j]->id; | |
| 1333 } | |
| 1334 else | |
| 1335 { | |
| 1336 /* not an explicit ciphersuite; only in this cas
e, the | |
| 1337 * protocol version is considered part of the se
arch pattern */ | |
| 1338 | |
| 1339 if (ca_list[j]->algorithm_ssl) | |
| 1340 { | |
| 1341 if (alg_ssl) | |
| 1342 { | |
| 1343 alg_ssl &= ca_list[j]->algorithm
_ssl; | |
| 1344 if (!alg_ssl) { found = 0; break
; } | |
| 1345 } | |
| 1346 else | |
| 1347 alg_ssl = ca_list[j]->algorithm_
ssl; | |
| 1348 } | |
| 1349 } | |
| 1350 | |
| 1351 if (!multi) break; | |
| 1352 } | |
| 1353 | |
| 1354 /* | |
| 1355 * Ok, we have the rule, now apply it | |
| 1356 */ | |
| 1357 if (rule == CIPHER_SPECIAL) | |
| 1358 { /* special command */ | |
| 1359 ok = 0; | |
| 1360 if ((buflen == 8) && | |
| 1361 !strncmp(buf, "STRENGTH", 8)) | |
| 1362 ok = ssl_cipher_strength_sort(head_p, tail_p); | |
| 1363 else | |
| 1364 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
| 1365 SSL_R_INVALID_COMMAND); | |
| 1366 if (ok == 0) | |
| 1367 retval = 0; | |
| 1368 /* | |
| 1369 * We do not support any "multi" options | |
| 1370 * together with "@", so throw away the | |
| 1371 * rest of the command, if any left, until | |
| 1372 * end or ':' is found. | |
| 1373 */ | |
| 1374 while ((*l != '\0') && !ITEM_SEP(*l)) | |
| 1375 l++; | |
| 1376 } | |
| 1377 else if (found) | |
| 1378 { | |
| 1379 ssl_cipher_apply_rule(cipher_id, | |
| 1380 alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, a
lgo_strength, | |
| 1381 rule, -1, head_p, tail_p); | |
| 1382 } | |
| 1383 else | |
| 1384 { | |
| 1385 while ((*l != '\0') && !ITEM_SEP(*l)) | |
| 1386 l++; | |
| 1387 } | |
| 1388 if (*l == '\0') break; /* done */ | |
| 1389 } | |
| 1390 | |
| 1391 return(retval); | |
| 1392 } | |
| 1393 | |
| 1394 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, | |
| 1395 STACK_OF(SSL_CIPHER) **cipher_list, | |
| 1396 STACK_OF(SSL_CIPHER) **cipher_list_by_id, | |
| 1397 const char *rule_str) | |
| 1398 { | |
| 1399 int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; | |
| 1400 unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac,
disabled_ssl; | |
| 1401 STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list; | |
| 1402 const char *rule_p; | |
| 1403 CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; | |
| 1404 const SSL_CIPHER **ca_list = NULL; | |
| 1405 | |
| 1406 /* | |
| 1407 * Return with error if nothing to do. | |
| 1408 */ | |
| 1409 if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL
) | |
| 1410 return NULL; | |
| 1411 | |
| 1412 /* | |
| 1413 * To reduce the work to do we only want to process the compiled | |
| 1414 * in algorithms, so we first get the mask of disabled ciphers. | |
| 1415 */ | |
| 1416 ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc, &
disabled_mac, &disabled_ssl); | |
| 1417 | |
| 1418 /* | |
| 1419 * Now we have to collect the available ciphers from the compiled | |
| 1420 * in ciphers. We cannot get more than the number compiled in, so | |
| 1421 * it is used for allocation. | |
| 1422 */ | |
| 1423 num_of_ciphers = ssl_method->num_ciphers(); | |
| 1424 #ifdef KSSL_DEBUG | |
| 1425 printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers); | |
| 1426 #endif /* KSSL_DEBUG */ | |
| 1427 co_list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_c
iphers); | |
| 1428 if (co_list == NULL) | |
| 1429 { | |
| 1430 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); | |
| 1431 return(NULL); /* Failure */ | |
| 1432 } | |
| 1433 | |
| 1434 ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, | |
| 1435 disabled_mkey, disabled_auth, disabled_enc, d
isabled_mac, disabled_ssl, | |
| 1436 co_list, &head, &tail); | |
| 1437 | |
| 1438 | |
| 1439 /* Now arrange all ciphers by preference: */ | |
| 1440 | |
| 1441 /* Everything else being equal, prefer ephemeral ECDH over other key exc
hange mechanisms */ | |
| 1442 ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &hea
d, &tail); | |
| 1443 ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &hea
d, &tail); | |
| 1444 | |
| 1445 /* CHACHA20 is fast and safe on all hardware and is thus our preferred | |
| 1446 * symmetric cipher, with AES second. */ | |
| 1447 ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20POLY1305, 0, 0, 0, CIPHER_ADD
, -1, &head, &tail); | |
| 1448 ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head,
&tail); | |
| 1449 | |
| 1450 /* Temporarily enable everything else for sorting */ | |
| 1451 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail)
; | |
| 1452 | |
| 1453 /* Low priority for MD5 */ | |
| 1454 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head,
&tail); | |
| 1455 | |
| 1456 /* Move anonymous ciphers to the end. Usually, these will remain disabl
ed. | |
| 1457 * (For applications that allow them, they aren't too bad, but we prefer | |
| 1458 * authenticated ciphers.) */ | |
| 1459 ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head
, &tail); | |
| 1460 | |
| 1461 /* Move ciphers without forward secrecy to the end */ | |
| 1462 ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head
, &tail); | |
| 1463 /* ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, &hea
d, &tail); */ | |
| 1464 ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
&tail); | |
| 1465 ssl_cipher_apply_rule(0, SSL_kPSK, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head,
&tail); | |
| 1466 ssl_cipher_apply_rule(0, SSL_kKRB5, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head,
&tail); | |
| 1467 | |
| 1468 /* RC4 is sort-of broken -- move the the end */ | |
| 1469 ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head,
&tail); | |
| 1470 | |
| 1471 /* Now sort by symmetric encryption strength. The above ordering remain
s | |
| 1472 * in force within each class */ | |
| 1473 if (!ssl_cipher_strength_sort(&head, &tail)) | |
| 1474 { | |
| 1475 OPENSSL_free(co_list); | |
| 1476 return NULL; | |
| 1477 } | |
| 1478 | |
| 1479 /* Now disable everything (maintaining the ordering!) */ | |
| 1480 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail)
; | |
| 1481 | |
| 1482 | |
| 1483 /* | |
| 1484 * We also need cipher aliases for selecting based on the rule_str. | |
| 1485 * There might be two types of entries in the rule_str: 1) names | |
| 1486 * of ciphers themselves 2) aliases for groups of ciphers. | |
| 1487 * For 1) we need the available ciphers and for 2) the cipher | |
| 1488 * groups of cipher_aliases added together in one list (otherwise | |
| 1489 * we would be happy with just the cipher_aliases table). | |
| 1490 */ | |
| 1491 num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER); | |
| 1492 num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; | |
| 1493 ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max); | |
| 1494 if (ca_list == NULL) | |
| 1495 { | |
| 1496 OPENSSL_free(co_list); | |
| 1497 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); | |
| 1498 return(NULL); /* Failure */ | |
| 1499 } | |
| 1500 ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, | |
| 1501 disabled_mkey, disabled_auth, disabled_enc, | |
| 1502 disabled_mac, disabled_ssl, head); | |
| 1503 | |
| 1504 /* | |
| 1505 * If the rule_string begins with DEFAULT, apply the default rule | |
| 1506 * before using the (possibly available) additional rules. | |
| 1507 */ | |
| 1508 ok = 1; | |
| 1509 rule_p = rule_str; | |
| 1510 if (strncmp(rule_str,"DEFAULT",7) == 0) | |
| 1511 { | |
| 1512 ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, | |
| 1513 &head, &tail, ca_list); | |
| 1514 rule_p += 7; | |
| 1515 if (*rule_p == ':') | |
| 1516 rule_p++; | |
| 1517 } | |
| 1518 | |
| 1519 if (ok && (strlen(rule_p) > 0)) | |
| 1520 ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list); | |
| 1521 | |
| 1522 OPENSSL_free((void *)ca_list); /* Not needed anymore */ | |
| 1523 | |
| 1524 if (!ok) | |
| 1525 { /* Rule processing failure */ | |
| 1526 OPENSSL_free(co_list); | |
| 1527 return(NULL); | |
| 1528 } | |
| 1529 | |
| 1530 /* | |
| 1531 * Allocate new "cipherstack" for the result, return with error | |
| 1532 * if we cannot get one. | |
| 1533 */ | |
| 1534 if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) | |
| 1535 { | |
| 1536 OPENSSL_free(co_list); | |
| 1537 return(NULL); | |
| 1538 } | |
| 1539 | |
| 1540 /* | |
| 1541 * The cipher selection for the list is done. The ciphers are added | |
| 1542 * to the resulting precedence to the STACK_OF(SSL_CIPHER). | |
| 1543 */ | |
| 1544 for (curr = head; curr != NULL; curr = curr->next) | |
| 1545 { | |
| 1546 #ifdef OPENSSL_FIPS | |
| 1547 if (curr->active && (!FIPS_mode() || curr->cipher->algo_strength
& SSL_FIPS)) | |
| 1548 #else | |
| 1549 if (curr->active) | |
| 1550 #endif | |
| 1551 { | |
| 1552 sk_SSL_CIPHER_push(cipherstack, curr->cipher); | |
| 1553 #ifdef CIPHER_DEBUG | |
| 1554 printf("<%s>\n",curr->cipher->name); | |
| 1555 #endif | |
| 1556 } | |
| 1557 } | |
| 1558 OPENSSL_free(co_list); /* Not needed any longer */ | |
| 1559 | |
| 1560 tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); | |
| 1561 if (tmp_cipher_list == NULL) | |
| 1562 { | |
| 1563 sk_SSL_CIPHER_free(cipherstack); | |
| 1564 return NULL; | |
| 1565 } | |
| 1566 if (*cipher_list != NULL) | |
| 1567 sk_SSL_CIPHER_free(*cipher_list); | |
| 1568 *cipher_list = cipherstack; | |
| 1569 if (*cipher_list_by_id != NULL) | |
| 1570 sk_SSL_CIPHER_free(*cipher_list_by_id); | |
| 1571 *cipher_list_by_id = tmp_cipher_list; | |
| 1572 (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cm
p); | |
| 1573 | |
| 1574 sk_SSL_CIPHER_sort(*cipher_list_by_id); | |
| 1575 return(cipherstack); | |
| 1576 } | |
| 1577 | |
| 1578 char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) | |
| 1579 { | |
| 1580 int is_export,pkl,kl; | |
| 1581 const char *ver,*exp_str; | |
| 1582 const char *kx,*au,*enc,*mac; | |
| 1583 unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2; | |
| 1584 #ifdef KSSL_DEBUG | |
| 1585 static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s
AL=%lx/%lx/%lx/%lx/%lx\n"; | |
| 1586 #else | |
| 1587 static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\
n"; | |
| 1588 #endif /* KSSL_DEBUG */ | |
| 1589 | |
| 1590 alg_mkey = cipher->algorithm_mkey; | |
| 1591 alg_auth = cipher->algorithm_auth; | |
| 1592 alg_enc = cipher->algorithm_enc; | |
| 1593 alg_mac = cipher->algorithm_mac; | |
| 1594 alg_ssl = cipher->algorithm_ssl; | |
| 1595 | |
| 1596 alg2=cipher->algorithm2; | |
| 1597 | |
| 1598 is_export=SSL_C_IS_EXPORT(cipher); | |
| 1599 pkl=SSL_C_EXPORT_PKEYLENGTH(cipher); | |
| 1600 kl=SSL_C_EXPORT_KEYLENGTH(cipher); | |
| 1601 exp_str=is_export?" export":""; | |
| 1602 | |
| 1603 if (alg_ssl & SSL_SSLV2) | |
| 1604 ver="SSLv2"; | |
| 1605 else if (alg_ssl & SSL_SSLV3) | |
| 1606 ver="SSLv3"; | |
| 1607 else if (alg_ssl & SSL_TLSV1_2) | |
| 1608 ver="TLSv1.2"; | |
| 1609 else | |
| 1610 ver="unknown"; | |
| 1611 | |
| 1612 switch (alg_mkey) | |
| 1613 { | |
| 1614 case SSL_kRSA: | |
| 1615 kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA"; | |
| 1616 break; | |
| 1617 case SSL_kDHr: | |
| 1618 kx="DH/RSA"; | |
| 1619 break; | |
| 1620 case SSL_kDHd: | |
| 1621 kx="DH/DSS"; | |
| 1622 break; | |
| 1623 case SSL_kKRB5: | |
| 1624 kx="KRB5"; | |
| 1625 break; | |
| 1626 case SSL_kEDH: | |
| 1627 kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH"; | |
| 1628 break; | |
| 1629 case SSL_kECDHr: | |
| 1630 kx="ECDH/RSA"; | |
| 1631 break; | |
| 1632 case SSL_kECDHe: | |
| 1633 kx="ECDH/ECDSA"; | |
| 1634 break; | |
| 1635 case SSL_kEECDH: | |
| 1636 kx="ECDH"; | |
| 1637 break; | |
| 1638 case SSL_kPSK: | |
| 1639 kx="PSK"; | |
| 1640 break; | |
| 1641 case SSL_kSRP: | |
| 1642 kx="SRP"; | |
| 1643 break; | |
| 1644 default: | |
| 1645 kx="unknown"; | |
| 1646 } | |
| 1647 | |
| 1648 switch (alg_auth) | |
| 1649 { | |
| 1650 case SSL_aRSA: | |
| 1651 au="RSA"; | |
| 1652 break; | |
| 1653 case SSL_aDSS: | |
| 1654 au="DSS"; | |
| 1655 break; | |
| 1656 case SSL_aDH: | |
| 1657 au="DH"; | |
| 1658 break; | |
| 1659 case SSL_aKRB5: | |
| 1660 au="KRB5"; | |
| 1661 break; | |
| 1662 case SSL_aECDH: | |
| 1663 au="ECDH"; | |
| 1664 break; | |
| 1665 case SSL_aNULL: | |
| 1666 au="None"; | |
| 1667 break; | |
| 1668 case SSL_aECDSA: | |
| 1669 au="ECDSA"; | |
| 1670 break; | |
| 1671 case SSL_aPSK: | |
| 1672 au="PSK"; | |
| 1673 break; | |
| 1674 default: | |
| 1675 au="unknown"; | |
| 1676 break; | |
| 1677 } | |
| 1678 | |
| 1679 switch (alg_enc) | |
| 1680 { | |
| 1681 case SSL_DES: | |
| 1682 enc=(is_export && kl == 5)?"DES(40)":"DES(56)"; | |
| 1683 break; | |
| 1684 case SSL_3DES: | |
| 1685 enc="3DES(168)"; | |
| 1686 break; | |
| 1687 case SSL_RC4: | |
| 1688 enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)") | |
| 1689 :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)"); | |
| 1690 break; | |
| 1691 case SSL_RC2: | |
| 1692 enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)"; | |
| 1693 break; | |
| 1694 case SSL_IDEA: | |
| 1695 enc="IDEA(128)"; | |
| 1696 break; | |
| 1697 case SSL_eNULL: | |
| 1698 enc="None"; | |
| 1699 break; | |
| 1700 case SSL_AES128: | |
| 1701 enc="AES(128)"; | |
| 1702 break; | |
| 1703 case SSL_AES256: | |
| 1704 enc="AES(256)"; | |
| 1705 break; | |
| 1706 case SSL_AES128GCM: | |
| 1707 enc="AESGCM(128)"; | |
| 1708 break; | |
| 1709 case SSL_AES256GCM: | |
| 1710 enc="AESGCM(256)"; | |
| 1711 break; | |
| 1712 case SSL_CAMELLIA128: | |
| 1713 enc="Camellia(128)"; | |
| 1714 break; | |
| 1715 case SSL_CAMELLIA256: | |
| 1716 enc="Camellia(256)"; | |
| 1717 break; | |
| 1718 case SSL_SEED: | |
| 1719 enc="SEED(128)"; | |
| 1720 break; | |
| 1721 case SSL_CHACHA20POLY1305: | |
| 1722 enc="ChaCha20-Poly1305"; | |
| 1723 break; | |
| 1724 default: | |
| 1725 enc="unknown"; | |
| 1726 break; | |
| 1727 } | |
| 1728 | |
| 1729 switch (alg_mac) | |
| 1730 { | |
| 1731 case SSL_MD5: | |
| 1732 mac="MD5"; | |
| 1733 break; | |
| 1734 case SSL_SHA1: | |
| 1735 mac="SHA1"; | |
| 1736 break; | |
| 1737 case SSL_SHA256: | |
| 1738 mac="SHA256"; | |
| 1739 break; | |
| 1740 case SSL_SHA384: | |
| 1741 mac="SHA384"; | |
| 1742 break; | |
| 1743 case SSL_AEAD: | |
| 1744 mac="AEAD"; | |
| 1745 break; | |
| 1746 default: | |
| 1747 mac="unknown"; | |
| 1748 break; | |
| 1749 } | |
| 1750 | |
| 1751 if (buf == NULL) | |
| 1752 { | |
| 1753 len=128; | |
| 1754 buf=OPENSSL_malloc(len); | |
| 1755 if (buf == NULL) return("OPENSSL_malloc Error"); | |
| 1756 } | |
| 1757 else if (len < 128) | |
| 1758 return("Buffer too small"); | |
| 1759 | |
| 1760 #ifdef KSSL_DEBUG | |
| 1761 BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str,alg_m
key,alg_auth,alg_enc,alg_mac,alg_ssl); | |
| 1762 #else | |
| 1763 BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str); | |
| 1764 #endif /* KSSL_DEBUG */ | |
| 1765 return(buf); | |
| 1766 } | |
| 1767 | |
| 1768 char *SSL_CIPHER_get_version(const SSL_CIPHER *c) | |
| 1769 { | |
| 1770 int i; | |
| 1771 | |
| 1772 if (c == NULL) return("(NONE)"); | |
| 1773 i=(int)(c->id>>24L); | |
| 1774 if (i == 3) | |
| 1775 return("TLSv1/SSLv3"); | |
| 1776 else if (i == 2) | |
| 1777 return("SSLv2"); | |
| 1778 else | |
| 1779 return("unknown"); | |
| 1780 } | |
| 1781 | |
| 1782 /* return the actual cipher being used */ | |
| 1783 const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) | |
| 1784 { | |
| 1785 if (c != NULL) | |
| 1786 return(c->name); | |
| 1787 return("(NONE)"); | |
| 1788 } | |
| 1789 | |
| 1790 /* number of bits for symmetric cipher */ | |
| 1791 int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) | |
| 1792 { | |
| 1793 int ret=0; | |
| 1794 | |
| 1795 if (c != NULL) | |
| 1796 { | |
| 1797 if (alg_bits != NULL) *alg_bits = c->alg_bits; | |
| 1798 ret = c->strength_bits; | |
| 1799 } | |
| 1800 return(ret); | |
| 1801 } | |
| 1802 | |
| 1803 unsigned long SSL_CIPHER_get_id(const SSL_CIPHER *c) | |
| 1804 { | |
| 1805 return c->id; | |
| 1806 } | |
| 1807 | |
| 1808 /* return string version of key exchange algorithm */ | |
| 1809 const char* SSL_CIPHER_authentication_method(const SSL_CIPHER* cipher) | |
| 1810 { | |
| 1811 switch (cipher->algorithm_mkey) | |
| 1812 { | |
| 1813 case SSL_kRSA: | |
| 1814 return SSL_TXT_RSA; | |
| 1815 case SSL_kDHr: | |
| 1816 return SSL_TXT_DH "_" SSL_TXT_RSA; | |
| 1817 case SSL_kDHd: | |
| 1818 return SSL_TXT_DH "_" SSL_TXT_DSS; | |
| 1819 case SSL_kEDH: | |
| 1820 switch (cipher->algorithm_auth) | |
| 1821 { | |
| 1822 case SSL_aDSS: | |
| 1823 return "DHE_" SSL_TXT_DSS; | |
| 1824 case SSL_aRSA: | |
| 1825 return "DHE_" SSL_TXT_RSA; | |
| 1826 case SSL_aNULL: | |
| 1827 return SSL_TXT_DH "_anon"; | |
| 1828 default: | |
| 1829 return "UNKNOWN"; | |
| 1830 } | |
| 1831 case SSL_kKRB5: | |
| 1832 return SSL_TXT_KRB5; | |
| 1833 case SSL_kECDHr: | |
| 1834 return SSL_TXT_ECDH "_" SSL_TXT_RSA; | |
| 1835 case SSL_kECDHe: | |
| 1836 return SSL_TXT_ECDH "_" SSL_TXT_ECDSA; | |
| 1837 case SSL_kEECDH: | |
| 1838 switch (cipher->algorithm_auth) | |
| 1839 { | |
| 1840 case SSL_aECDSA: | |
| 1841 return "ECDHE_" SSL_TXT_ECDSA; | |
| 1842 case SSL_aRSA: | |
| 1843 return "ECDHE_" SSL_TXT_RSA; | |
| 1844 case SSL_aNULL: | |
| 1845 return SSL_TXT_ECDH "_anon"; | |
| 1846 default: | |
| 1847 return "UNKNOWN"; | |
| 1848 } | |
| 1849 default: | |
| 1850 return "UNKNOWN"; | |
| 1851 } | |
| 1852 } | |
| 1853 | |
| 1854 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) | |
| 1855 { | |
| 1856 SSL_COMP *ctmp; | |
| 1857 int i,nn; | |
| 1858 | |
| 1859 if ((n == 0) || (sk == NULL)) return(NULL); | |
| 1860 nn=sk_SSL_COMP_num(sk); | |
| 1861 for (i=0; i<nn; i++) | |
| 1862 { | |
| 1863 ctmp=sk_SSL_COMP_value(sk,i); | |
| 1864 if (ctmp->id == n) | |
| 1865 return(ctmp); | |
| 1866 } | |
| 1867 return(NULL); | |
| 1868 } | |
| 1869 | |
| 1870 #ifdef OPENSSL_NO_COMP | |
| 1871 void *SSL_COMP_get_compression_methods(void) | |
| 1872 { | |
| 1873 return NULL; | |
| 1874 } | |
| 1875 int SSL_COMP_add_compression_method(int id, void *cm) | |
| 1876 { | |
| 1877 return 1; | |
| 1878 } | |
| 1879 | |
| 1880 const char *SSL_COMP_get_name(const void *comp) | |
| 1881 { | |
| 1882 return NULL; | |
| 1883 } | |
| 1884 #else | |
| 1885 STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) | |
| 1886 { | |
| 1887 load_builtin_compressions(); | |
| 1888 return(ssl_comp_methods); | |
| 1889 } | |
| 1890 | |
| 1891 int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) | |
| 1892 { | |
| 1893 SSL_COMP *comp; | |
| 1894 | |
| 1895 if (cm == NULL || cm->type == NID_undef) | |
| 1896 return 1; | |
| 1897 | |
| 1898 /* According to draft-ietf-tls-compression-04.txt, the | |
| 1899 compression number ranges should be the following: | |
| 1900 | |
| 1901 0 to 63: methods defined by the IETF | |
| 1902 64 to 192: external party methods assigned by IANA | |
| 1903 193 to 255: reserved for private use */ | |
| 1904 if (id < 193 || id > 255) | |
| 1905 { | |
| 1906 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_COMPRESSION_I
D_NOT_WITHIN_PRIVATE_RANGE); | |
| 1907 return 0; | |
| 1908 } | |
| 1909 | |
| 1910 MemCheck_off(); | |
| 1911 comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)); | |
| 1912 comp->id=id; | |
| 1913 comp->method=cm; | |
| 1914 load_builtin_compressions(); | |
| 1915 if (ssl_comp_methods | |
| 1916 && sk_SSL_COMP_find(ssl_comp_methods,comp) >= 0) | |
| 1917 { | |
| 1918 OPENSSL_free(comp); | |
| 1919 MemCheck_on(); | |
| 1920 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_DUPLICATE_COM
PRESSION_ID); | |
| 1921 return(1); | |
| 1922 } | |
| 1923 else if ((ssl_comp_methods == NULL) | |
| 1924 || !sk_SSL_COMP_push(ssl_comp_methods,comp)) | |
| 1925 { | |
| 1926 OPENSSL_free(comp); | |
| 1927 MemCheck_on(); | |
| 1928 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILUR
E); | |
| 1929 return(1); | |
| 1930 } | |
| 1931 else | |
| 1932 { | |
| 1933 MemCheck_on(); | |
| 1934 return(0); | |
| 1935 } | |
| 1936 } | |
| 1937 | |
| 1938 const char *SSL_COMP_get_name(const COMP_METHOD *comp) | |
| 1939 { | |
| 1940 if (comp) | |
| 1941 return comp->name; | |
| 1942 return NULL; | |
| 1943 } | |
| 1944 | |
| 1945 #endif | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master