1 /* crypto/evp/names.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 #include "cryptlib.h" 61 #include <openssl/evp.h> 62 #include <openssl/objects.h> 63 #include <openssl/x509.h> 64 65 int EVP_add_cipher(const EVP_CIPHER *c) 66 { 67 int r; 68 69 if (c == NULL) return 0; 70 71 OPENSSL_init(); 72 73 r=OBJ_NAME_add(OBJ_nid2sn(c->nid),OBJ_NAME_TYPE_CIPHER_METH,(const char *)c); 74 if (r == 0) return(0); 75 check_defer(c->nid); 76 r=OBJ_NAME_add(OBJ_nid2ln(c->nid),OBJ_NAME_TYPE_CIPHER_METH,(const char *)c); 77 return(r); 78 } 79 80 81 int EVP_add_digest(const EVP_MD *md) 82 { 83 int r; 84 const char *name; 85 OPENSSL_init(); 86 87 name=OBJ_nid2sn(md->type); 88 r=OBJ_NAME_add(name,OBJ_NAME_TYPE_MD_METH,(const char *)md); 89 if (r == 0) return(0); 90 check_defer(md->type); 91 r=OBJ_NAME_add(OBJ_nid2ln(md->type),OBJ_NAME_TYPE_MD_METH,(const char *)md); 92 if (r == 0) return(0); 93 94 if (md->pkey_type && md->type != md->pkey_type) 95 { 96 r=OBJ_NAME_add(OBJ_nid2sn(md->pkey_type), 97 OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,name); 98 if (r == 0) return(0); 99 check_defer(md->pkey_type); 100 r=OBJ_NAME_add(OBJ_nid2ln(md->pkey_type), 101 OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,name); 102 } 103 return(r); 104 } 105 106 const EVP_CIPHER *EVP_get_cipherbyname(const char *name) 107 { 108 const EVP_CIPHER *cp; 109 110 cp=(const EVP_CIPHER *)OBJ_NAME_get(name,OBJ_NAME_TYPE_CIPHER_METH); 111 return(cp); 112 } 113 114 const EVP_MD *EVP_get_digestbyname(const char *name) 115 { 116 const EVP_MD *cp; 117 118 cp=(const EVP_MD *)OBJ_NAME_get(name,OBJ_NAME_TYPE_MD_METH); 119 return(cp); 120 } 121 122 void EVP_cleanup(void) 123 { 124 OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH); 125 OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH); 126 /* The above calls will only clean out the contents of the name 127 hash table, but not the hash table itself. The following line 128 does that part. -- Richard Levitte */ 129 OBJ_NAME_cleanup(-1); 130 131 EVP_PBE_cleanup(); 132 if (obj_cleanup_defer == 2) 133 { 134 obj_cleanup_defer = 0; 135 OBJ_cleanup(); 136 } 137 OBJ_sigid_free(); 138 } 139 140 struct doall_cipher 141 { 142 void *arg; 143 void (*fn)(const EVP_CIPHER *ciph, 144 const char *from, const char *to, void *arg); 145 }; 146 147 static void do_all_cipher_fn(const OBJ_NAME *nm, void *arg) 148 { 149 struct doall_cipher *dc = arg; 150 if (nm->alias) 151 dc->fn(NULL, nm->name, nm->data, dc->arg); 152 else 153 dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg); 154 } 155 156 void EVP_CIPHER_do_all(void (*fn)(const EVP_CIPHER *ciph, 157 const char *from, const char *to, void *x), void *arg) 158 { 159 struct doall_cipher dc; 160 dc.fn = fn; 161 dc.arg = arg; 162 OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc); 163 } 164 165 void EVP_CIPHER_do_all_sorted(void (*fn)(const EVP_CIPHER *ciph, 166 const char *from, const char *to, void *x), void *arg) 167 { 168 struct doall_cipher dc; 169 dc.fn = fn; 170 dc.arg = arg; 171 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn,&dc); 172 } 173 174 struct doall_md 175 { 176 void *arg; 177 void (*fn)(const EVP_MD *ciph, 178 const char *from, const char *to, void *arg); 179 }; 180 181 static void do_all_md_fn(const OBJ_NAME *nm, void *arg) 182 { 183 struct doall_md *dc = arg; 184 if (nm->alias) 185 dc->fn(NULL, nm->name, nm->data, dc->arg); 186 else 187 dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg); 188 } 189 190 void EVP_MD_do_all(void (*fn)(const EVP_MD *md, 191 const char *from, const char *to, void *x), void *arg) 192 { 193 struct doall_md dc; 194 dc.fn = fn; 195 dc.arg = arg; 196 OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); 197 } 198 199 void EVP_MD_do_all_sorted(void (*fn)(const EVP_MD *md, 200 const char *from, const char *to, void *x), void *arg) 201 { 202 struct doall_md dc; 203 dc.fn = fn; 204 dc.arg = arg; 205 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); 206 } 207
