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| 1 /* tasn_new.c */ | |
| 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
| 3 * project 2000. | |
| 4 */ | |
| 5 /* ==================================================================== | |
| 6 * Copyright (c) 2000-2004 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 | |
| 60 #include <stddef.h> | |
| 61 #include <openssl/asn1.h> | |
| 62 #include <openssl/objects.h> | |
| 63 #include <openssl/err.h> | |
| 64 #include <openssl/asn1t.h> | |
| 65 #include <string.h> | |
| 66 | |
| 67 static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it, | |
| 68 int combine); | |
| 69 static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it); | |
| 70 static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt); | |
| 71 static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it); | |
| 72 | |
| 73 ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it) | |
| 74 { | |
| 75 ASN1_VALUE *ret = NULL; | |
| 76 if (ASN1_item_ex_new(&ret, it) > 0) | |
| 77 return ret; | |
| 78 return NULL; | |
| 79 } | |
| 80 | |
| 81 /* Allocate an ASN1 structure */ | |
| 82 | |
| 83 int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it) | |
| 84 { | |
| 85 return asn1_item_ex_combine_new(pval, it, 0); | |
| 86 } | |
| 87 | |
| 88 static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it, | |
| 89 int combine) | |
| 90 { | |
| 91 const ASN1_TEMPLATE *tt = NULL; | |
| 92 const ASN1_COMPAT_FUNCS *cf; | |
| 93 const ASN1_EXTERN_FUNCS *ef; | |
| 94 const ASN1_AUX *aux = it->funcs; | |
| 95 ASN1_aux_cb *asn1_cb; | |
| 96 ASN1_VALUE **pseqval; | |
| 97 int i; | |
| 98 if (aux && aux->asn1_cb) | |
| 99 asn1_cb = aux->asn1_cb; | |
| 100 else | |
| 101 asn1_cb = 0; | |
| 102 | |
| 103 if (!combine) *pval = NULL; | |
| 104 | |
| 105 #ifdef CRYPTO_MDEBUG | |
| 106 if (it->sname) | |
| 107 CRYPTO_push_info(it->sname); | |
| 108 #endif | |
| 109 | |
| 110 switch(it->itype) | |
| 111 { | |
| 112 | |
| 113 case ASN1_ITYPE_EXTERN: | |
| 114 ef = it->funcs; | |
| 115 if (ef && ef->asn1_ex_new) | |
| 116 { | |
| 117 if (!ef->asn1_ex_new(pval, it)) | |
| 118 goto memerr; | |
| 119 } | |
| 120 break; | |
| 121 | |
| 122 case ASN1_ITYPE_COMPAT: | |
| 123 cf = it->funcs; | |
| 124 if (cf && cf->asn1_new) { | |
| 125 *pval = cf->asn1_new(); | |
| 126 if (!*pval) | |
| 127 goto memerr; | |
| 128 } | |
| 129 break; | |
| 130 | |
| 131 case ASN1_ITYPE_PRIMITIVE: | |
| 132 if (it->templates) | |
| 133 { | |
| 134 if (!ASN1_template_new(pval, it->templates)) | |
| 135 goto memerr; | |
| 136 } | |
| 137 else if (!ASN1_primitive_new(pval, it)) | |
| 138 goto memerr; | |
| 139 break; | |
| 140 | |
| 141 case ASN1_ITYPE_MSTRING: | |
| 142 if (!ASN1_primitive_new(pval, it)) | |
| 143 goto memerr; | |
| 144 break; | |
| 145 | |
| 146 case ASN1_ITYPE_CHOICE: | |
| 147 if (asn1_cb) | |
| 148 { | |
| 149 i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL); | |
| 150 if (!i) | |
| 151 goto auxerr; | |
| 152 if (i==2) | |
| 153 { | |
| 154 #ifdef CRYPTO_MDEBUG | |
| 155 if (it->sname) | |
| 156 CRYPTO_pop_info(); | |
| 157 #endif | |
| 158 return 1; | |
| 159 } | |
| 160 } | |
| 161 if (!combine) | |
| 162 { | |
| 163 *pval = OPENSSL_malloc(it->size); | |
| 164 if (!*pval) | |
| 165 goto memerr; | |
| 166 memset(*pval, 0, it->size); | |
| 167 } | |
| 168 asn1_set_choice_selector(pval, -1, it); | |
| 169 if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL)) | |
| 170 goto auxerr; | |
| 171 break; | |
| 172 | |
| 173 case ASN1_ITYPE_NDEF_SEQUENCE: | |
| 174 case ASN1_ITYPE_SEQUENCE: | |
| 175 if (asn1_cb) | |
| 176 { | |
| 177 i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL); | |
| 178 if (!i) | |
| 179 goto auxerr; | |
| 180 if (i==2) | |
| 181 { | |
| 182 #ifdef CRYPTO_MDEBUG | |
| 183 if (it->sname) | |
| 184 CRYPTO_pop_info(); | |
| 185 #endif | |
| 186 return 1; | |
| 187 } | |
| 188 } | |
| 189 if (!combine) | |
| 190 { | |
| 191 *pval = OPENSSL_malloc(it->size); | |
| 192 if (!*pval) | |
| 193 goto memerr; | |
| 194 memset(*pval, 0, it->size); | |
| 195 asn1_do_lock(pval, 0, it); | |
| 196 asn1_enc_init(pval, it); | |
| 197 } | |
| 198 for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) | |
| 199 { | |
| 200 pseqval = asn1_get_field_ptr(pval, tt); | |
| 201 if (!ASN1_template_new(pseqval, tt)) | |
| 202 goto memerr; | |
| 203 } | |
| 204 if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL)) | |
| 205 goto auxerr; | |
| 206 break; | |
| 207 } | |
| 208 #ifdef CRYPTO_MDEBUG | |
| 209 if (it->sname) CRYPTO_pop_info(); | |
| 210 #endif | |
| 211 return 1; | |
| 212 | |
| 213 memerr: | |
| 214 ASN1err(ASN1_F_ASN1_ITEM_EX_COMBINE_NEW, ERR_R_MALLOC_FAILURE); | |
| 215 #ifdef CRYPTO_MDEBUG | |
| 216 if (it->sname) CRYPTO_pop_info(); | |
| 217 #endif | |
| 218 return 0; | |
| 219 | |
| 220 auxerr: | |
| 221 ASN1err(ASN1_F_ASN1_ITEM_EX_COMBINE_NEW, ASN1_R_AUX_ERROR); | |
| 222 ASN1_item_ex_free(pval, it); | |
| 223 #ifdef CRYPTO_MDEBUG | |
| 224 if (it->sname) CRYPTO_pop_info(); | |
| 225 #endif | |
| 226 return 0; | |
| 227 | |
| 228 } | |
| 229 | |
| 230 static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it) | |
| 231 { | |
| 232 const ASN1_EXTERN_FUNCS *ef; | |
| 233 | |
| 234 switch(it->itype) | |
| 235 { | |
| 236 | |
| 237 case ASN1_ITYPE_EXTERN: | |
| 238 ef = it->funcs; | |
| 239 if (ef && ef->asn1_ex_clear) | |
| 240 ef->asn1_ex_clear(pval, it); | |
| 241 else *pval = NULL; | |
| 242 break; | |
| 243 | |
| 244 | |
| 245 case ASN1_ITYPE_PRIMITIVE: | |
| 246 if (it->templates) | |
| 247 asn1_template_clear(pval, it->templates); | |
| 248 else | |
| 249 asn1_primitive_clear(pval, it); | |
| 250 break; | |
| 251 | |
| 252 case ASN1_ITYPE_MSTRING: | |
| 253 asn1_primitive_clear(pval, it); | |
| 254 break; | |
| 255 | |
| 256 case ASN1_ITYPE_COMPAT: | |
| 257 case ASN1_ITYPE_CHOICE: | |
| 258 case ASN1_ITYPE_SEQUENCE: | |
| 259 case ASN1_ITYPE_NDEF_SEQUENCE: | |
| 260 *pval = NULL; | |
| 261 break; | |
| 262 } | |
| 263 } | |
| 264 | |
| 265 | |
| 266 int ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) | |
| 267 { | |
| 268 const ASN1_ITEM *it = ASN1_ITEM_ptr(tt->item); | |
| 269 int ret; | |
| 270 if (tt->flags & ASN1_TFLG_OPTIONAL) | |
| 271 { | |
| 272 asn1_template_clear(pval, tt); | |
| 273 return 1; | |
| 274 } | |
| 275 /* If ANY DEFINED BY nothing to do */ | |
| 276 | |
| 277 if (tt->flags & ASN1_TFLG_ADB_MASK) | |
| 278 { | |
| 279 *pval = NULL; | |
| 280 return 1; | |
| 281 } | |
| 282 #ifdef CRYPTO_MDEBUG | |
| 283 if (tt->field_name) | |
| 284 CRYPTO_push_info(tt->field_name); | |
| 285 #endif | |
| 286 /* If SET OF or SEQUENCE OF, its a STACK */ | |
| 287 if (tt->flags & ASN1_TFLG_SK_MASK) | |
| 288 { | |
| 289 STACK_OF(ASN1_VALUE) *skval; | |
| 290 skval = sk_ASN1_VALUE_new_null(); | |
| 291 if (!skval) | |
| 292 { | |
| 293 ASN1err(ASN1_F_ASN1_TEMPLATE_NEW, ERR_R_MALLOC_FAILURE); | |
| 294 ret = 0; | |
| 295 goto done; | |
| 296 } | |
| 297 *pval = (ASN1_VALUE *)skval; | |
| 298 ret = 1; | |
| 299 goto done; | |
| 300 } | |
| 301 /* Otherwise pass it back to the item routine */ | |
| 302 ret = asn1_item_ex_combine_new(pval, it, tt->flags & ASN1_TFLG_COMBINE); | |
| 303 done: | |
| 304 #ifdef CRYPTO_MDEBUG | |
| 305 if (it->sname) | |
| 306 CRYPTO_pop_info(); | |
| 307 #endif | |
| 308 return ret; | |
| 309 } | |
| 310 | |
| 311 static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) | |
| 312 { | |
| 313 /* If ADB or STACK just NULL the field */ | |
| 314 if (tt->flags & (ASN1_TFLG_ADB_MASK|ASN1_TFLG_SK_MASK)) | |
| 315 *pval = NULL; | |
| 316 else | |
| 317 asn1_item_clear(pval, ASN1_ITEM_ptr(tt->item)); | |
| 318 } | |
| 319 | |
| 320 | |
| 321 /* NB: could probably combine most of the real XXX_new() behaviour and junk | |
| 322 * all the old functions. | |
| 323 */ | |
| 324 | |
| 325 int ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it) | |
| 326 { | |
| 327 ASN1_TYPE *typ; | |
| 328 ASN1_STRING *str; | |
| 329 int utype; | |
| 330 | |
| 331 if (it && it->funcs) | |
| 332 { | |
| 333 const ASN1_PRIMITIVE_FUNCS *pf = it->funcs; | |
| 334 if (pf->prim_new) | |
| 335 return pf->prim_new(pval, it); | |
| 336 } | |
| 337 | |
| 338 if (!it || (it->itype == ASN1_ITYPE_MSTRING)) | |
| 339 utype = -1; | |
| 340 else | |
| 341 utype = it->utype; | |
| 342 switch(utype) | |
| 343 { | |
| 344 case V_ASN1_OBJECT: | |
| 345 *pval = (ASN1_VALUE *)OBJ_nid2obj(NID_undef); | |
| 346 return 1; | |
| 347 | |
| 348 case V_ASN1_BOOLEAN: | |
| 349 *(ASN1_BOOLEAN *)pval = it->size; | |
| 350 return 1; | |
| 351 | |
| 352 case V_ASN1_NULL: | |
| 353 *pval = (ASN1_VALUE *)1; | |
| 354 return 1; | |
| 355 | |
| 356 case V_ASN1_ANY: | |
| 357 typ = OPENSSL_malloc(sizeof(ASN1_TYPE)); | |
| 358 if (!typ) | |
| 359 return 0; | |
| 360 typ->value.ptr = NULL; | |
| 361 typ->type = -1; | |
| 362 *pval = (ASN1_VALUE *)typ; | |
| 363 break; | |
| 364 | |
| 365 default: | |
| 366 str = ASN1_STRING_type_new(utype); | |
| 367 if (it->itype == ASN1_ITYPE_MSTRING && str) | |
| 368 str->flags |= ASN1_STRING_FLAG_MSTRING; | |
| 369 *pval = (ASN1_VALUE *)str; | |
| 370 break; | |
| 371 } | |
| 372 if (*pval) | |
| 373 return 1; | |
| 374 return 0; | |
| 375 } | |
| 376 | |
| 377 static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it) | |
| 378 { | |
| 379 int utype; | |
| 380 if (it && it->funcs) | |
| 381 { | |
| 382 const ASN1_PRIMITIVE_FUNCS *pf = it->funcs; | |
| 383 if (pf->prim_clear) | |
| 384 pf->prim_clear(pval, it); | |
| 385 else | |
| 386 *pval = NULL; | |
| 387 return; | |
| 388 } | |
| 389 if (!it || (it->itype == ASN1_ITYPE_MSTRING)) | |
| 390 utype = -1; | |
| 391 else | |
| 392 utype = it->utype; | |
| 393 if (utype == V_ASN1_BOOLEAN) | |
| 394 *(ASN1_BOOLEAN *)pval = it->size; | |
| 395 else *pval = NULL; | |
| 396 } | |
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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