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| 1 /* crypto/engine/eng_lib.c */ | |
| 2 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL | |
| 3 * project 2000. | |
| 4 */ | |
| 5 /* ==================================================================== | |
| 6 * Copyright (c) 1999-2001 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 "eng_int.h" | |
| 60 #include <openssl/rand.h> | |
| 61 | |
| 62 /* The "new"/"free" stuff first */ | |
| 63 | |
| 64 ENGINE *ENGINE_new(void) | |
| 65 { | |
| 66 ENGINE *ret; | |
| 67 | |
| 68 ret = (ENGINE *)OPENSSL_malloc(sizeof(ENGINE)); | |
| 69 if(ret == NULL) | |
| 70 { | |
| 71 ENGINEerr(ENGINE_F_ENGINE_NEW, ERR_R_MALLOC_FAILURE); | |
| 72 return NULL; | |
| 73 } | |
| 74 memset(ret, 0, sizeof(ENGINE)); | |
| 75 ret->struct_ref = 1; | |
| 76 engine_ref_debug(ret, 0, 1) | |
| 77 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ENGINE, ret, &ret->ex_data); | |
| 78 return ret; | |
| 79 } | |
| 80 | |
| 81 /* Placed here (close proximity to ENGINE_new) so that modifications to the | |
| 82 * elements of the ENGINE structure are more likely to be caught and changed | |
| 83 * here. */ | |
| 84 void engine_set_all_null(ENGINE *e) | |
| 85 { | |
| 86 e->id = NULL; | |
| 87 e->name = NULL; | |
| 88 e->rsa_meth = NULL; | |
| 89 e->dsa_meth = NULL; | |
| 90 e->dh_meth = NULL; | |
| 91 e->rand_meth = NULL; | |
| 92 e->store_meth = NULL; | |
| 93 e->ciphers = NULL; | |
| 94 e->digests = NULL; | |
| 95 e->destroy = NULL; | |
| 96 e->init = NULL; | |
| 97 e->finish = NULL; | |
| 98 e->ctrl = NULL; | |
| 99 e->load_privkey = NULL; | |
| 100 e->load_pubkey = NULL; | |
| 101 e->cmd_defns = NULL; | |
| 102 e->flags = 0; | |
| 103 } | |
| 104 | |
| 105 int engine_free_util(ENGINE *e, int locked) | |
| 106 { | |
| 107 int i; | |
| 108 | |
| 109 if(e == NULL) | |
| 110 { | |
| 111 ENGINEerr(ENGINE_F_ENGINE_FREE_UTIL, | |
| 112 ERR_R_PASSED_NULL_PARAMETER); | |
| 113 return 0; | |
| 114 } | |
| 115 if(locked) | |
| 116 i = CRYPTO_add(&e->struct_ref,-1,CRYPTO_LOCK_ENGINE); | |
| 117 else | |
| 118 i = --e->struct_ref; | |
| 119 engine_ref_debug(e, 0, -1) | |
| 120 if (i > 0) return 1; | |
| 121 #ifdef REF_CHECK | |
| 122 if (i < 0) | |
| 123 { | |
| 124 fprintf(stderr,"ENGINE_free, bad structural reference count\n"); | |
| 125 abort(); | |
| 126 } | |
| 127 #endif | |
| 128 /* Free up any dynamically allocated public key methods */ | |
| 129 engine_pkey_meths_free(e); | |
| 130 engine_pkey_asn1_meths_free(e); | |
| 131 /* Give the ENGINE a chance to do any structural cleanup corresponding | |
| 132 * to allocation it did in its constructor (eg. unload error strings) */ | |
| 133 if(e->destroy) | |
| 134 e->destroy(e); | |
| 135 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ENGINE, e, &e->ex_data); | |
| 136 OPENSSL_free(e); | |
| 137 return 1; | |
| 138 } | |
| 139 | |
| 140 int ENGINE_free(ENGINE *e) | |
| 141 { | |
| 142 return engine_free_util(e, 1); | |
| 143 } | |
| 144 | |
| 145 /* Cleanup stuff */ | |
| 146 | |
| 147 /* ENGINE_cleanup() is coded such that anything that does work that will need | |
| 148 * cleanup can register a "cleanup" callback here. That way we don't get linker | |
| 149 * bloat by referring to all *possible* cleanups, but any linker bloat into code | |
| 150 * "X" will cause X's cleanup function to end up here. */ | |
| 151 static STACK_OF(ENGINE_CLEANUP_ITEM) *cleanup_stack = NULL; | |
| 152 static int int_cleanup_check(int create) | |
| 153 { | |
| 154 if(cleanup_stack) return 1; | |
| 155 if(!create) return 0; | |
| 156 cleanup_stack = sk_ENGINE_CLEANUP_ITEM_new_null(); | |
| 157 return (cleanup_stack ? 1 : 0); | |
| 158 } | |
| 159 static ENGINE_CLEANUP_ITEM *int_cleanup_item(ENGINE_CLEANUP_CB *cb) | |
| 160 { | |
| 161 ENGINE_CLEANUP_ITEM *item = OPENSSL_malloc(sizeof( | |
| 162 ENGINE_CLEANUP_ITEM)); | |
| 163 if(!item) return NULL; | |
| 164 item->cb = cb; | |
| 165 return item; | |
| 166 } | |
| 167 void engine_cleanup_add_first(ENGINE_CLEANUP_CB *cb) | |
| 168 { | |
| 169 ENGINE_CLEANUP_ITEM *item; | |
| 170 if(!int_cleanup_check(1)) return; | |
| 171 item = int_cleanup_item(cb); | |
| 172 if(item) | |
| 173 sk_ENGINE_CLEANUP_ITEM_insert(cleanup_stack, item, 0); | |
| 174 } | |
| 175 void engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb) | |
| 176 { | |
| 177 ENGINE_CLEANUP_ITEM *item; | |
| 178 if(!int_cleanup_check(1)) return; | |
| 179 item = int_cleanup_item(cb); | |
| 180 if(item) | |
| 181 sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item); | |
| 182 } | |
| 183 /* The API function that performs all cleanup */ | |
| 184 static void engine_cleanup_cb_free(ENGINE_CLEANUP_ITEM *item) | |
| 185 { | |
| 186 (*(item->cb))(); | |
| 187 OPENSSL_free(item); | |
| 188 } | |
| 189 void ENGINE_cleanup(void) | |
| 190 { | |
| 191 if(int_cleanup_check(0)) | |
| 192 { | |
| 193 sk_ENGINE_CLEANUP_ITEM_pop_free(cleanup_stack, | |
| 194 engine_cleanup_cb_free); | |
| 195 cleanup_stack = NULL; | |
| 196 } | |
| 197 /* FIXME: This should be handled (somehow) through RAND, eg. by it | |
| 198 * registering a cleanup callback. */ | |
| 199 RAND_set_rand_method(NULL); | |
| 200 } | |
| 201 | |
| 202 /* Now the "ex_data" support */ | |
| 203 | |
| 204 int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, | |
| 205 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) | |
| 206 { | |
| 207 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ENGINE, argl, argp, | |
| 208 new_func, dup_func, free_func); | |
| 209 } | |
| 210 | |
| 211 int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg) | |
| 212 { | |
| 213 return(CRYPTO_set_ex_data(&e->ex_data, idx, arg)); | |
| 214 } | |
| 215 | |
| 216 void *ENGINE_get_ex_data(const ENGINE *e, int idx) | |
| 217 { | |
| 218 return(CRYPTO_get_ex_data(&e->ex_data, idx)); | |
| 219 } | |
| 220 | |
| 221 /* Functions to get/set an ENGINE's elements - mainly to avoid exposing the | |
| 222 * ENGINE structure itself. */ | |
| 223 | |
| 224 int ENGINE_set_id(ENGINE *e, const char *id) | |
| 225 { | |
| 226 if(id == NULL) | |
| 227 { | |
| 228 ENGINEerr(ENGINE_F_ENGINE_SET_ID, | |
| 229 ERR_R_PASSED_NULL_PARAMETER); | |
| 230 return 0; | |
| 231 } | |
| 232 e->id = id; | |
| 233 return 1; | |
| 234 } | |
| 235 | |
| 236 int ENGINE_set_name(ENGINE *e, const char *name) | |
| 237 { | |
| 238 if(name == NULL) | |
| 239 { | |
| 240 ENGINEerr(ENGINE_F_ENGINE_SET_NAME, | |
| 241 ERR_R_PASSED_NULL_PARAMETER); | |
| 242 return 0; | |
| 243 } | |
| 244 e->name = name; | |
| 245 return 1; | |
| 246 } | |
| 247 | |
| 248 int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f) | |
| 249 { | |
| 250 e->destroy = destroy_f; | |
| 251 return 1; | |
| 252 } | |
| 253 | |
| 254 int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f) | |
| 255 { | |
| 256 e->init = init_f; | |
| 257 return 1; | |
| 258 } | |
| 259 | |
| 260 int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f) | |
| 261 { | |
| 262 e->finish = finish_f; | |
| 263 return 1; | |
| 264 } | |
| 265 | |
| 266 int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f) | |
| 267 { | |
| 268 e->ctrl = ctrl_f; | |
| 269 return 1; | |
| 270 } | |
| 271 | |
| 272 int ENGINE_set_flags(ENGINE *e, int flags) | |
| 273 { | |
| 274 e->flags = flags; | |
| 275 return 1; | |
| 276 } | |
| 277 | |
| 278 int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns) | |
| 279 { | |
| 280 e->cmd_defns = defns; | |
| 281 return 1; | |
| 282 } | |
| 283 | |
| 284 const char *ENGINE_get_id(const ENGINE *e) | |
| 285 { | |
| 286 return e->id; | |
| 287 } | |
| 288 | |
| 289 const char *ENGINE_get_name(const ENGINE *e) | |
| 290 { | |
| 291 return e->name; | |
| 292 } | |
| 293 | |
| 294 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e) | |
| 295 { | |
| 296 return e->destroy; | |
| 297 } | |
| 298 | |
| 299 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e) | |
| 300 { | |
| 301 return e->init; | |
| 302 } | |
| 303 | |
| 304 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e) | |
| 305 { | |
| 306 return e->finish; | |
| 307 } | |
| 308 | |
| 309 ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e) | |
| 310 { | |
| 311 return e->ctrl; | |
| 312 } | |
| 313 | |
| 314 int ENGINE_get_flags(const ENGINE *e) | |
| 315 { | |
| 316 return e->flags; | |
| 317 } | |
| 318 | |
| 319 const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e) | |
| 320 { | |
| 321 return e->cmd_defns; | |
| 322 } | |
| 323 | |
| 324 /* eng_lib.o is pretty much linked into anything that touches ENGINE already, so | |
| 325 * put the "static_state" hack here. */ | |
| 326 | |
| 327 static int internal_static_hack = 0; | |
| 328 | |
| 329 void *ENGINE_get_static_state(void) | |
| 330 { | |
| 331 return &internal_static_hack; | |
| 332 } | |
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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