1 /* crypto/evp/names.c */
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 #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 }