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| 1 /* x509_vpm.c */ | |
| 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
| 3 * project 2004. | |
| 4 */ | |
| 5 /* ==================================================================== | |
| 6 * Copyright (c) 2004 The OpenSSL Project. All rights reserved. | |
| 7 * | |
| 8 * Redistribution and use in source and binary forms, with or without | |
| 9 * modification, are permitted provided that the following conditions | |
| 10 * are met: | |
| 11 * | |
| 12 * 1. Redistributions of source code must retain the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer. | |
| 14 * | |
| 15 * 2. Redistributions in binary form must reproduce the above copyright | |
| 16 * notice, this list of conditions and the following disclaimer in | |
| 17 * the documentation and/or other materials provided with the | |
| 18 * distribution. | |
| 19 * | |
| 20 * 3. All advertising materials mentioning features or use of this | |
| 21 * software must display the following acknowledgment: | |
| 22 * "This product includes software developed by the OpenSSL Project | |
| 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 24 * | |
| 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 26 * endorse or promote products derived from this software without | |
| 27 * prior written permission. For written permission, please contact | |
| 28 * licensing@OpenSSL.org. | |
| 29 * | |
| 30 * 5. Products derived from this software may not be called "OpenSSL" | |
| 31 * nor may "OpenSSL" appear in their names without prior written | |
| 32 * permission of the OpenSSL Project. | |
| 33 * | |
| 34 * 6. Redistributions of any form whatsoever must retain the following | |
| 35 * acknowledgment: | |
| 36 * "This product includes software developed by the OpenSSL Project | |
| 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 38 * | |
| 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 50 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 51 * ==================================================================== | |
| 52 * | |
| 53 * This product includes cryptographic software written by Eric Young | |
| 54 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 55 * Hudson (tjh@cryptsoft.com). | |
| 56 * | |
| 57 */ | |
| 58 | |
| 59 #include <stdio.h> | |
| 60 | |
| 61 #include "cryptlib.h" | |
| 62 #include <openssl/crypto.h> | |
| 63 #include <openssl/lhash.h> | |
| 64 #include <openssl/buffer.h> | |
| 65 #include <openssl/x509.h> | |
| 66 #include <openssl/x509v3.h> | |
| 67 | |
| 68 /* X509_VERIFY_PARAM functions */ | |
| 69 | |
| 70 static void x509_verify_param_zero(X509_VERIFY_PARAM *param) | |
| 71 { | |
| 72 if (!param) | |
| 73 return; | |
| 74 param->name = NULL; | |
| 75 param->purpose = 0; | |
| 76 param->trust = 0; | |
| 77 /*param->inh_flags = X509_VP_FLAG_DEFAULT;*/ | |
| 78 param->inh_flags = 0; | |
| 79 param->flags = 0; | |
| 80 param->depth = -1; | |
| 81 if (param->policies) | |
| 82 { | |
| 83 sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free); | |
| 84 param->policies = NULL; | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void) | |
| 89 { | |
| 90 X509_VERIFY_PARAM *param; | |
| 91 param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM)); | |
| 92 memset(param, 0, sizeof(X509_VERIFY_PARAM)); | |
| 93 x509_verify_param_zero(param); | |
| 94 return param; | |
| 95 } | |
| 96 | |
| 97 void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param) | |
| 98 { | |
| 99 x509_verify_param_zero(param); | |
| 100 OPENSSL_free(param); | |
| 101 } | |
| 102 | |
| 103 /* This function determines how parameters are "inherited" from one structure | |
| 104 * to another. There are several different ways this can happen. | |
| 105 * | |
| 106 * 1. If a child structure needs to have its values initialized from a parent | |
| 107 * they are simply copied across. For example SSL_CTX copied to SSL. | |
| 108 * 2. If the structure should take on values only if they are currently unset. | |
| 109 * For example the values in an SSL structure will take appropriate value | |
| 110 * for SSL servers or clients but only if the application has not set new | |
| 111 * ones. | |
| 112 * | |
| 113 * The "inh_flags" field determines how this function behaves. | |
| 114 * | |
| 115 * Normally any values which are set in the default are not copied from the | |
| 116 * destination and verify flags are ORed together. | |
| 117 * | |
| 118 * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied | |
| 119 * to the destination. Effectively the values in "to" become default values | |
| 120 * which will be used only if nothing new is set in "from". | |
| 121 * | |
| 122 * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether | |
| 123 * they are set or not. Flags is still Ored though. | |
| 124 * | |
| 125 * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead | |
| 126 * of ORed. | |
| 127 * | |
| 128 * If X509_VP_FLAG_LOCKED is set then no values are copied. | |
| 129 * | |
| 130 * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed | |
| 131 * after the next call. | |
| 132 */ | |
| 133 | |
| 134 /* Macro to test if a field should be copied from src to dest */ | |
| 135 | |
| 136 #define test_x509_verify_param_copy(field, def) \ | |
| 137 (to_overwrite || \ | |
| 138 ((src->field != def) && (to_default || (dest->field == def)))) | |
| 139 | |
| 140 /* Macro to test and copy a field if necessary */ | |
| 141 | |
| 142 #define x509_verify_param_copy(field, def) \ | |
| 143 if (test_x509_verify_param_copy(field, def)) \ | |
| 144 dest->field = src->field | |
| 145 | |
| 146 | |
| 147 int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest, | |
| 148 const X509_VERIFY_PARAM *src) | |
| 149 { | |
| 150 unsigned long inh_flags; | |
| 151 int to_default, to_overwrite; | |
| 152 if (!src) | |
| 153 return 1; | |
| 154 inh_flags = dest->inh_flags | src->inh_flags; | |
| 155 | |
| 156 if (inh_flags & X509_VP_FLAG_ONCE) | |
| 157 dest->inh_flags = 0; | |
| 158 | |
| 159 if (inh_flags & X509_VP_FLAG_LOCKED) | |
| 160 return 1; | |
| 161 | |
| 162 if (inh_flags & X509_VP_FLAG_DEFAULT) | |
| 163 to_default = 1; | |
| 164 else | |
| 165 to_default = 0; | |
| 166 | |
| 167 if (inh_flags & X509_VP_FLAG_OVERWRITE) | |
| 168 to_overwrite = 1; | |
| 169 else | |
| 170 to_overwrite = 0; | |
| 171 | |
| 172 x509_verify_param_copy(purpose, 0); | |
| 173 x509_verify_param_copy(trust, 0); | |
| 174 x509_verify_param_copy(depth, -1); | |
| 175 | |
| 176 /* If overwrite or check time not set, copy across */ | |
| 177 | |
| 178 if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME)) | |
| 179 { | |
| 180 dest->check_time = src->check_time; | |
| 181 dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME; | |
| 182 /* Don't need to copy flag: that is done below */ | |
| 183 } | |
| 184 | |
| 185 if (inh_flags & X509_VP_FLAG_RESET_FLAGS) | |
| 186 dest->flags = 0; | |
| 187 | |
| 188 dest->flags |= src->flags; | |
| 189 | |
| 190 if (test_x509_verify_param_copy(policies, NULL)) | |
| 191 { | |
| 192 if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies)) | |
| 193 return 0; | |
| 194 } | |
| 195 | |
| 196 return 1; | |
| 197 } | |
| 198 | |
| 199 int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to, | |
| 200 const X509_VERIFY_PARAM *from) | |
| 201 { | |
| 202 unsigned long save_flags = to->inh_flags; | |
| 203 int ret; | |
| 204 to->inh_flags |= X509_VP_FLAG_DEFAULT; | |
| 205 ret = X509_VERIFY_PARAM_inherit(to, from); | |
| 206 to->inh_flags = save_flags; | |
| 207 return ret; | |
| 208 } | |
| 209 | |
| 210 int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name) | |
| 211 { | |
| 212 if (param->name) | |
| 213 OPENSSL_free(param->name); | |
| 214 param->name = BUF_strdup(name); | |
| 215 if (param->name) | |
| 216 return 1; | |
| 217 return 0; | |
| 218 } | |
| 219 | |
| 220 int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags) | |
| 221 { | |
| 222 param->flags |= flags; | |
| 223 if (flags & X509_V_FLAG_POLICY_MASK) | |
| 224 param->flags |= X509_V_FLAG_POLICY_CHECK; | |
| 225 return 1; | |
| 226 } | |
| 227 | |
| 228 int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param, unsigned long flags) | |
| 229 { | |
| 230 param->flags &= ~flags; | |
| 231 return 1; | |
| 232 } | |
| 233 | |
| 234 unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param) | |
| 235 { | |
| 236 return param->flags; | |
| 237 } | |
| 238 | |
| 239 int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose) | |
| 240 { | |
| 241 return X509_PURPOSE_set(¶m->purpose, purpose); | |
| 242 } | |
| 243 | |
| 244 int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust) | |
| 245 { | |
| 246 return X509_TRUST_set(¶m->trust, trust); | |
| 247 } | |
| 248 | |
| 249 void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth) | |
| 250 { | |
| 251 param->depth = depth; | |
| 252 } | |
| 253 | |
| 254 void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t) | |
| 255 { | |
| 256 param->check_time = t; | |
| 257 param->flags |= X509_V_FLAG_USE_CHECK_TIME; | |
| 258 } | |
| 259 | |
| 260 int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param, ASN1_OBJECT *policy) | |
| 261 { | |
| 262 if (!param->policies) | |
| 263 { | |
| 264 param->policies = sk_ASN1_OBJECT_new_null(); | |
| 265 if (!param->policies) | |
| 266 return 0; | |
| 267 } | |
| 268 if (!sk_ASN1_OBJECT_push(param->policies, policy)) | |
| 269 return 0; | |
| 270 return 1; | |
| 271 } | |
| 272 | |
| 273 int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param, | |
| 274 STACK_OF(ASN1_OBJECT) *policies) | |
| 275 { | |
| 276 int i; | |
| 277 ASN1_OBJECT *oid, *doid; | |
| 278 if (!param) | |
| 279 return 0; | |
| 280 if (param->policies) | |
| 281 sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free); | |
| 282 | |
| 283 if (!policies) | |
| 284 { | |
| 285 param->policies = NULL; | |
| 286 return 1; | |
| 287 } | |
| 288 | |
| 289 param->policies = sk_ASN1_OBJECT_new_null(); | |
| 290 if (!param->policies) | |
| 291 return 0; | |
| 292 | |
| 293 for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++) | |
| 294 { | |
| 295 oid = sk_ASN1_OBJECT_value(policies, i); | |
| 296 doid = OBJ_dup(oid); | |
| 297 if (!doid) | |
| 298 return 0; | |
| 299 if (!sk_ASN1_OBJECT_push(param->policies, doid)) | |
| 300 { | |
| 301 ASN1_OBJECT_free(doid); | |
| 302 return 0; | |
| 303 } | |
| 304 } | |
| 305 param->flags |= X509_V_FLAG_POLICY_CHECK; | |
| 306 return 1; | |
| 307 } | |
| 308 | |
| 309 int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param) | |
| 310 { | |
| 311 return param->depth; | |
| 312 } | |
| 313 | |
| 314 /* Default verify parameters: these are used for various | |
| 315 * applications and can be overridden by the user specified table. | |
| 316 * NB: the 'name' field *must* be in alphabetical order because it | |
| 317 * will be searched using OBJ_search. | |
| 318 */ | |
| 319 | |
| 320 static const X509_VERIFY_PARAM default_table[] = { | |
| 321 { | |
| 322 "default", /* X509 default parameters */ | |
| 323 0, /* Check time */ | |
| 324 0, /* internal flags */ | |
| 325 0, /* flags */ | |
| 326 0, /* purpose */ | |
| 327 0, /* trust */ | |
| 328 100, /* depth */ | |
| 329 NULL /* policies */ | |
| 330 }, | |
| 331 { | |
| 332 "pkcs7", /* S/MIME sign parameters */ | |
| 333 0, /* Check time */ | |
| 334 0, /* internal flags */ | |
| 335 0, /* flags */ | |
| 336 X509_PURPOSE_SMIME_SIGN, /* purpose */ | |
| 337 X509_TRUST_EMAIL, /* trust */ | |
| 338 -1, /* depth */ | |
| 339 NULL /* policies */ | |
| 340 }, | |
| 341 { | |
| 342 "smime_sign", /* S/MIME sign parameters */ | |
| 343 0, /* Check time */ | |
| 344 0, /* internal flags */ | |
| 345 0, /* flags */ | |
| 346 X509_PURPOSE_SMIME_SIGN, /* purpose */ | |
| 347 X509_TRUST_EMAIL, /* trust */ | |
| 348 -1, /* depth */ | |
| 349 NULL /* policies */ | |
| 350 }, | |
| 351 { | |
| 352 "ssl_client", /* SSL/TLS client parameters */ | |
| 353 0, /* Check time */ | |
| 354 0, /* internal flags */ | |
| 355 0, /* flags */ | |
| 356 X509_PURPOSE_SSL_CLIENT, /* purpose */ | |
| 357 X509_TRUST_SSL_CLIENT, /* trust */ | |
| 358 -1, /* depth */ | |
| 359 NULL /* policies */ | |
| 360 }, | |
| 361 { | |
| 362 "ssl_server", /* SSL/TLS server parameters */ | |
| 363 0, /* Check time */ | |
| 364 0, /* internal flags */ | |
| 365 0, /* flags */ | |
| 366 X509_PURPOSE_SSL_SERVER, /* purpose */ | |
| 367 X509_TRUST_SSL_SERVER, /* trust */ | |
| 368 -1, /* depth */ | |
| 369 NULL /* policies */ | |
| 370 }}; | |
| 371 | |
| 372 static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL; | |
| 373 | |
| 374 static int table_cmp(const X509_VERIFY_PARAM *a, const X509_VERIFY_PARAM *b) | |
| 375 | |
| 376 { | |
| 377 return strcmp(a->name, b->name); | |
| 378 } | |
| 379 | |
| 380 DECLARE_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM, | |
| 381 table); | |
| 382 IMPLEMENT_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM, | |
| 383 table); | |
| 384 | |
| 385 static int param_cmp(const X509_VERIFY_PARAM * const *a, | |
| 386 const X509_VERIFY_PARAM * const *b) | |
| 387 { | |
| 388 return strcmp((*a)->name, (*b)->name); | |
| 389 } | |
| 390 | |
| 391 int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param) | |
| 392 { | |
| 393 int idx; | |
| 394 X509_VERIFY_PARAM *ptmp; | |
| 395 if (!param_table) | |
| 396 { | |
| 397 param_table = sk_X509_VERIFY_PARAM_new(param_cmp); | |
| 398 if (!param_table) | |
| 399 return 0; | |
| 400 } | |
| 401 else | |
| 402 { | |
| 403 idx = sk_X509_VERIFY_PARAM_find(param_table, param); | |
| 404 if (idx != -1) | |
| 405 { | |
| 406 ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx); | |
| 407 X509_VERIFY_PARAM_free(ptmp); | |
| 408 (void)sk_X509_VERIFY_PARAM_delete(param_table, idx); | |
| 409 } | |
| 410 } | |
| 411 if (!sk_X509_VERIFY_PARAM_push(param_table, param)) | |
| 412 return 0; | |
| 413 return 1; | |
| 414 } | |
| 415 | |
| 416 const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name) | |
| 417 { | |
| 418 int idx; | |
| 419 X509_VERIFY_PARAM pm; | |
| 420 | |
| 421 pm.name = (char *)name; | |
| 422 if (param_table) | |
| 423 { | |
| 424 idx = sk_X509_VERIFY_PARAM_find(param_table, &pm); | |
| 425 if (idx != -1) | |
| 426 return sk_X509_VERIFY_PARAM_value(param_table, idx); | |
| 427 } | |
| 428 return OBJ_bsearch_table(&pm, default_table, | |
| 429 sizeof(default_table)/sizeof(X509_VERIFY_PARAM)); | |
| 430 } | |
| 431 | |
| 432 void X509_VERIFY_PARAM_table_cleanup(void) | |
| 433 { | |
| 434 if (param_table) | |
| 435 sk_X509_VERIFY_PARAM_pop_free(param_table, | |
| 436 X509_VERIFY_PARAM_free); | |
| 437 param_table = NULL; | |
| 438 } | |
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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