1 /* $OpenBSD: names.c,v 1.11 2014/06/12 15:49:29 deraadt Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 61 #include <openssl/evp.h> 62 #include <openssl/objects.h> 63 #include <openssl/x509.h> 64 65 int 66 EVP_add_cipher(const EVP_CIPHER *c) 67 { 68 int r; 69 70 if (c == NULL) 71 return 0; 72 73 OPENSSL_init(); 74 75 r = OBJ_NAME_add(OBJ_nid2sn(c->nid), OBJ_NAME_TYPE_CIPHER_METH, 76 (const char *)c); 77 if (r == 0) 78 return (0); 79 check_defer(c->nid); 80 r = OBJ_NAME_add(OBJ_nid2ln(c->nid), OBJ_NAME_TYPE_CIPHER_METH, 81 (const char *)c); 82 return (r); 83 } 84 85 int 86 EVP_add_digest(const EVP_MD *md) 87 { 88 int r; 89 const char *name; 90 91 OPENSSL_init(); 92 93 name = OBJ_nid2sn(md->type); 94 r = OBJ_NAME_add(name, OBJ_NAME_TYPE_MD_METH, (const char *)md); 95 if (r == 0) 96 return (0); 97 check_defer(md->type); 98 r = OBJ_NAME_add(OBJ_nid2ln(md->type), OBJ_NAME_TYPE_MD_METH, 99 (const char *)md); 100 if (r == 0) 101 return (0); 102 103 if (md->pkey_type && md->type != md->pkey_type) { 104 r = OBJ_NAME_add(OBJ_nid2sn(md->pkey_type), 105 OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS, name); 106 if (r == 0) 107 return (0); 108 check_defer(md->pkey_type); 109 r = OBJ_NAME_add(OBJ_nid2ln(md->pkey_type), 110 OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS, name); 111 } 112 return (r); 113 } 114 115 const EVP_CIPHER * 116 EVP_get_cipherbyname(const char *name) 117 { 118 const EVP_CIPHER *cp; 119 120 cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH); 121 return (cp); 122 } 123 124 const EVP_MD * 125 EVP_get_digestbyname(const char *name) 126 { 127 const EVP_MD *cp; 128 129 cp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH); 130 return (cp); 131 } 132 133 void 134 EVP_cleanup(void) 135 { 136 OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH); 137 OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH); 138 /* The above calls will only clean out the contents of the name 139 hash table, but not the hash table itself. The following line 140 does that part. -- Richard Levitte */ 141 OBJ_NAME_cleanup(-1); 142 143 EVP_PBE_cleanup(); 144 if (obj_cleanup_defer == 2) { 145 obj_cleanup_defer = 0; 146 OBJ_cleanup(); 147 } 148 OBJ_sigid_free(); 149 } 150 151 struct doall_cipher { 152 void *arg; 153 void (*fn)(const EVP_CIPHER *ciph, const char *from, const char *to, 154 void *arg); 155 }; 156 157 static void 158 do_all_cipher_fn(const OBJ_NAME *nm, void *arg) 159 { 160 struct doall_cipher *dc = arg; 161 162 if (nm->alias) 163 dc->fn(NULL, nm->name, nm->data, dc->arg); 164 else 165 dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg); 166 } 167 168 void 169 EVP_CIPHER_do_all(void (*fn)(const EVP_CIPHER *ciph, const char *from, 170 const char *to, void *x), void *arg) 171 { 172 struct doall_cipher dc; 173 174 dc.fn = fn; 175 dc.arg = arg; 176 OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc); 177 } 178 179 void 180 EVP_CIPHER_do_all_sorted(void (*fn)(const EVP_CIPHER *ciph, const char *from, 181 const char *to, void *x), void *arg) 182 { 183 struct doall_cipher dc; 184 185 dc.fn = fn; 186 dc.arg = arg; 187 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, 188 do_all_cipher_fn, &dc); 189 } 190 191 struct doall_md { 192 void *arg; 193 void (*fn)(const EVP_MD *ciph, const char *from, const char *to, 194 void *arg); 195 }; 196 197 static void 198 do_all_md_fn(const OBJ_NAME *nm, void *arg) 199 { 200 struct doall_md *dc = arg; 201 202 if (nm->alias) 203 dc->fn(NULL, nm->name, nm->data, dc->arg); 204 else 205 dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg); 206 } 207 208 void 209 EVP_MD_do_all(void (*fn)(const EVP_MD *md, const char *from, const char *to, 210 void *x), void *arg) 211 { 212 struct doall_md dc; 213 214 dc.fn = fn; 215 dc.arg = arg; 216 OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); 217 } 218 219 void 220 EVP_MD_do_all_sorted(void (*fn)(const EVP_MD *md, 221 const char *from, const char *to, void *x), void *arg) 222 { 223 struct doall_md dc; 224 225 dc.fn = fn; 226 dc.arg = arg; 227 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); 228 } 229