| OLD | NEW |
|---|
| (Empty) |
| 1 /* crypto/engine/eng_init.c */ | |
| 2 /* ==================================================================== | |
| 3 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in | |
| 14 * the documentation and/or other materials provided with the | |
| 15 * distribution. | |
| 16 * | |
| 17 * 3. All advertising materials mentioning features or use of this | |
| 18 * software must display the following acknowledgment: | |
| 19 * "This product includes software developed by the OpenSSL Project | |
| 20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 21 * | |
| 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 23 * endorse or promote products derived from this software without | |
| 24 * prior written permission. For written permission, please contact | |
| 25 * licensing@OpenSSL.org. | |
| 26 * | |
| 27 * 5. Products derived from this software may not be called "OpenSSL" | |
| 28 * nor may "OpenSSL" appear in their names without prior written | |
| 29 * permission of the OpenSSL Project. | |
| 30 * | |
| 31 * 6. Redistributions of any form whatsoever must retain the following | |
| 32 * acknowledgment: | |
| 33 * "This product includes software developed by the OpenSSL Project | |
| 34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 35 * | |
| 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 47 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 48 * ==================================================================== | |
| 49 * | |
| 50 * This product includes cryptographic software written by Eric Young | |
| 51 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 52 * Hudson (tjh@cryptsoft.com). | |
| 53 * | |
| 54 */ | |
| 55 | |
| 56 #include "eng_int.h" | |
| 57 | |
| 58 /* Initialise a engine type for use (or up its functional reference count | |
| 59 * if it's already in use). This version is only used internally. */ | |
| 60 int engine_unlocked_init(ENGINE *e) | |
| 61 { | |
| 62 int to_return = 1; | |
| 63 | |
| 64 if((e->funct_ref == 0) && e->init) | |
| 65 /* This is the first functional reference and the engine | |
| 66 * requires initialisation so we do it now. */ | |
| 67 to_return = e->init(e); | |
| 68 if(to_return) | |
| 69 { | |
| 70 /* OK, we return a functional reference which is also a | |
| 71 * structural reference. */ | |
| 72 e->struct_ref++; | |
| 73 e->funct_ref++; | |
| 74 engine_ref_debug(e, 0, 1) | |
| 75 engine_ref_debug(e, 1, 1) | |
| 76 } | |
| 77 return to_return; | |
| 78 } | |
| 79 | |
| 80 /* Free a functional reference to a engine type. This version is only used | |
| 81 * internally. */ | |
| 82 int engine_unlocked_finish(ENGINE *e, int unlock_for_handlers) | |
| 83 { | |
| 84 int to_return = 1; | |
| 85 | |
| 86 /* Reduce the functional reference count here so if it's the terminating | |
| 87 * case, we can release the lock safely and call the finish() handler | |
| 88 * without risk of a race. We get a race if we leave the count until | |
| 89 * after and something else is calling "finish" at the same time - | |
| 90 * there's a chance that both threads will together take the count from | |
| 91 * 2 to 0 without either calling finish(). */ | |
| 92 e->funct_ref--; | |
| 93 engine_ref_debug(e, 1, -1); | |
| 94 if((e->funct_ref == 0) && e->finish) | |
| 95 { | |
| 96 if(unlock_for_handlers) | |
| 97 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); | |
| 98 to_return = e->finish(e); | |
| 99 if(unlock_for_handlers) | |
| 100 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); | |
| 101 if(!to_return) | |
| 102 return 0; | |
| 103 } | |
| 104 #ifdef REF_CHECK | |
| 105 if(e->funct_ref < 0) | |
| 106 { | |
| 107 fprintf(stderr,"ENGINE_finish, bad functional reference count\n"
); | |
| 108 abort(); | |
| 109 } | |
| 110 #endif | |
| 111 /* Release the structural reference too */ | |
| 112 if(!engine_free_util(e, 0)) | |
| 113 { | |
| 114 ENGINEerr(ENGINE_F_ENGINE_UNLOCKED_FINISH,ENGINE_R_FINISH_FAILED
); | |
| 115 return 0; | |
| 116 } | |
| 117 return to_return; | |
| 118 } | |
| 119 | |
| 120 /* The API (locked) version of "init" */ | |
| 121 int ENGINE_init(ENGINE *e) | |
| 122 { | |
| 123 int ret; | |
| 124 if(e == NULL) | |
| 125 { | |
| 126 ENGINEerr(ENGINE_F_ENGINE_INIT,ERR_R_PASSED_NULL_PARAMETER); | |
| 127 return 0; | |
| 128 } | |
| 129 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); | |
| 130 ret = engine_unlocked_init(e); | |
| 131 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); | |
| 132 return ret; | |
| 133 } | |
| 134 | |
| 135 /* The API (locked) version of "finish" */ | |
| 136 int ENGINE_finish(ENGINE *e) | |
| 137 { | |
| 138 int to_return = 1; | |
| 139 | |
| 140 if(e == NULL) | |
| 141 { | |
| 142 ENGINEerr(ENGINE_F_ENGINE_FINISH,ERR_R_PASSED_NULL_PARAMETER); | |
| 143 return 0; | |
| 144 } | |
| 145 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); | |
| 146 to_return = engine_unlocked_finish(e, 1); | |
| 147 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); | |
| 148 if(!to_return) | |
| 149 { | |
| 150 ENGINEerr(ENGINE_F_ENGINE_FINISH,ENGINE_R_FINISH_FAILED); | |
| 151 return 0; | |
| 152 } | |
| 153 return to_return; | |
| 154 } | |
| 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