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