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| 1 /* ==================================================================== | |
| 2 * Copyright (c) 2006 The OpenSSL Project. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * | |
| 11 * 2. Redistributions in binary form must reproduce the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer in | |
| 13 * the documentation and/or other materials provided with the | |
| 14 * distribution. | |
| 15 * | |
| 16 * 3. All advertising materials mentioning features or use of this | |
| 17 * software must display the following acknowledgment: | |
| 18 * "This product includes software developed by the OpenSSL Project | |
| 19 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 20 * | |
| 21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 22 * endorse or promote products derived from this software without | |
| 23 * prior written permission. For written permission, please contact | |
| 24 * licensing@OpenSSL.org. | |
| 25 * | |
| 26 * 5. Products derived from this software may not be called "OpenSSL" | |
| 27 * nor may "OpenSSL" appear in their names without prior written | |
| 28 * permission of the OpenSSL Project. | |
| 29 * | |
| 30 * 6. Redistributions of any form whatsoever must retain the following | |
| 31 * acknowledgment: | |
| 32 * "This product includes software developed by the OpenSSL Project | |
| 33 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 34 * | |
| 35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 46 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 47 * ==================================================================== | |
| 48 * | |
| 49 * This product includes cryptographic software written by Eric Young | |
| 50 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 51 * Hudson (tjh@cryptsoft.com). | |
| 52 * | |
| 53 */ | |
| 54 | |
| 55 #include "eng_int.h" | |
| 56 #include "asn1_locl.h" | |
| 57 #include <openssl/evp.h> | |
| 58 | |
| 59 /* If this symbol is defined then ENGINE_get_pkey_asn1_meth_engine(), the | |
| 60 * function that is used by EVP to hook in pkey_asn1_meth code and cache | |
| 61 * defaults (etc), will display brief debugging summaries to stderr with the | |
| 62 * 'nid'. */ | |
| 63 /* #define ENGINE_PKEY_ASN1_METH_DEBUG */ | |
| 64 | |
| 65 static ENGINE_TABLE *pkey_asn1_meth_table = NULL; | |
| 66 | |
| 67 void ENGINE_unregister_pkey_asn1_meths(ENGINE *e) | |
| 68 { | |
| 69 engine_table_unregister(&pkey_asn1_meth_table, e); | |
| 70 } | |
| 71 | |
| 72 static void engine_unregister_all_pkey_asn1_meths(void) | |
| 73 { | |
| 74 engine_table_cleanup(&pkey_asn1_meth_table); | |
| 75 } | |
| 76 | |
| 77 int ENGINE_register_pkey_asn1_meths(ENGINE *e) | |
| 78 { | |
| 79 if(e->pkey_asn1_meths) | |
| 80 { | |
| 81 const int *nids; | |
| 82 int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0); | |
| 83 if(num_nids > 0) | |
| 84 return engine_table_register(&pkey_asn1_meth_table, | |
| 85 engine_unregister_all_pkey_asn1_meths, e, nids, | |
| 86 num_nids, 0); | |
| 87 } | |
| 88 return 1; | |
| 89 } | |
| 90 | |
| 91 void ENGINE_register_all_pkey_asn1_meths(void) | |
| 92 { | |
| 93 ENGINE *e; | |
| 94 | |
| 95 for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e)) | |
| 96 ENGINE_register_pkey_asn1_meths(e); | |
| 97 } | |
| 98 | |
| 99 int ENGINE_set_default_pkey_asn1_meths(ENGINE *e) | |
| 100 { | |
| 101 if(e->pkey_asn1_meths) | |
| 102 { | |
| 103 const int *nids; | |
| 104 int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0); | |
| 105 if(num_nids > 0) | |
| 106 return engine_table_register(&pkey_asn1_meth_table, | |
| 107 engine_unregister_all_pkey_asn1_meths, e, nids, | |
| 108 num_nids, 1); | |
| 109 } | |
| 110 return 1; | |
| 111 } | |
| 112 | |
| 113 /* Exposed API function to get a functional reference from the implementation | |
| 114 * table (ie. try to get a functional reference from the tabled structural | |
| 115 * references) for a given pkey_asn1_meth 'nid' */ | |
| 116 ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid) | |
| 117 { | |
| 118 return engine_table_select(&pkey_asn1_meth_table, nid); | |
| 119 } | |
| 120 | |
| 121 /* Obtains a pkey_asn1_meth implementation from an ENGINE functional reference *
/ | |
| 122 const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid) | |
| 123 { | |
| 124 EVP_PKEY_ASN1_METHOD *ret; | |
| 125 ENGINE_PKEY_ASN1_METHS_PTR fn = ENGINE_get_pkey_asn1_meths(e); | |
| 126 if(!fn || !fn(e, &ret, NULL, nid)) | |
| 127 { | |
| 128 ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_ASN1_METH, | |
| 129 ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD); | |
| 130 return NULL; | |
| 131 } | |
| 132 return ret; | |
| 133 } | |
| 134 | |
| 135 /* Gets the pkey_asn1_meth callback from an ENGINE structure */ | |
| 136 ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e) | |
| 137 { | |
| 138 return e->pkey_asn1_meths; | |
| 139 } | |
| 140 | |
| 141 /* Sets the pkey_asn1_meth callback in an ENGINE structure */ | |
| 142 int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f) | |
| 143 { | |
| 144 e->pkey_asn1_meths = f; | |
| 145 return 1; | |
| 146 } | |
| 147 | |
| 148 /* Internal function to free up EVP_PKEY_ASN1_METHOD structures before an | |
| 149 * ENGINE is destroyed | |
| 150 */ | |
| 151 | |
| 152 void engine_pkey_asn1_meths_free(ENGINE *e) | |
| 153 { | |
| 154 int i; | |
| 155 EVP_PKEY_ASN1_METHOD *pkm; | |
| 156 if (e->pkey_asn1_meths) | |
| 157 { | |
| 158 const int *pknids; | |
| 159 int npknids; | |
| 160 npknids = e->pkey_asn1_meths(e, NULL, &pknids, 0); | |
| 161 for (i = 0; i < npknids; i++) | |
| 162 { | |
| 163 if (e->pkey_asn1_meths(e, &pkm, NULL, pknids[i])) | |
| 164 { | |
| 165 EVP_PKEY_asn1_free(pkm); | |
| 166 } | |
| 167 } | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 /* Find a method based on a string. This does a linear search through | |
| 172 * all implemented algorithms. This is OK in practice because only | |
| 173 * a small number of algorithms are likely to be implemented in an engine | |
| 174 * and it is not used for speed critical operations. | |
| 175 */ | |
| 176 | |
| 177 const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e, | |
| 178 const char *str, int len) | |
| 179 { | |
| 180 int i, nidcount; | |
| 181 const int *nids; | |
| 182 EVP_PKEY_ASN1_METHOD *ameth; | |
| 183 if (!e->pkey_asn1_meths) | |
| 184 return NULL; | |
| 185 if (len == -1) | |
| 186 len = strlen(str); | |
| 187 nidcount = e->pkey_asn1_meths(e, NULL, &nids, 0); | |
| 188 for (i = 0; i < nidcount; i++) | |
| 189 { | |
| 190 e->pkey_asn1_meths(e, &ameth, NULL, nids[i]); | |
| 191 if (((int)strlen(ameth->pem_str) == len) && | |
| 192 !strncasecmp(ameth->pem_str, str, len)) | |
| 193 return ameth; | |
| 194 } | |
| 195 return NULL; | |
| 196 } | |
| 197 | |
| 198 typedef struct | |
| 199 { | |
| 200 ENGINE *e; | |
| 201 const EVP_PKEY_ASN1_METHOD *ameth; | |
| 202 const char *str; | |
| 203 int len; | |
| 204 } ENGINE_FIND_STR; | |
| 205 | |
| 206 static void look_str_cb(int nid, STACK_OF(ENGINE) *sk, ENGINE *def, void *arg) | |
| 207 { | |
| 208 ENGINE_FIND_STR *lk = arg; | |
| 209 int i; | |
| 210 if (lk->ameth) | |
| 211 return; | |
| 212 for (i = 0; i < sk_ENGINE_num(sk); i++) | |
| 213 { | |
| 214 ENGINE *e = sk_ENGINE_value(sk, i); | |
| 215 EVP_PKEY_ASN1_METHOD *ameth; | |
| 216 e->pkey_asn1_meths(e, &ameth, NULL, nid); | |
| 217 if (((int)strlen(ameth->pem_str) == lk->len) && | |
| 218 !strncasecmp(ameth->pem_str, lk->str, lk->len)) | |
| 219 { | |
| 220 lk->e = e; | |
| 221 lk->ameth = ameth; | |
| 222 return; | |
| 223 } | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe, | |
| 228 const char *str, int len) | |
| 229 { | |
| 230 ENGINE_FIND_STR fstr; | |
| 231 fstr.e = NULL; | |
| 232 fstr.ameth = NULL; | |
| 233 fstr.str = str; | |
| 234 fstr.len = len; | |
| 235 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); | |
| 236 engine_table_doall(pkey_asn1_meth_table, look_str_cb, &fstr); | |
| 237 /* If found obtain a structural reference to engine */ | |
| 238 if (fstr.e) | |
| 239 { | |
| 240 fstr.e->struct_ref++; | |
| 241 engine_ref_debug(fstr.e, 0, 1) | |
| 242 } | |
| 243 *pe = fstr.e; | |
| 244 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); | |
| 245 return fstr.ameth; | |
| 246 } | |
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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