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
EVP_add_cipher(const EVP_CIPHER * c)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
EVP_add_digest(const EVP_MD * md)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
EVP_get_cipherbyname(const char * name)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
EVP_get_digestbyname(const char * name)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
EVP_cleanup(void)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
do_all_cipher_fn(const OBJ_NAME * nm,void * arg)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
EVP_CIPHER_do_all(void (* fn)(const EVP_CIPHER * ciph,const char * from,const char * to,void * x),void * arg)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
EVP_CIPHER_do_all_sorted(void (* fn)(const EVP_CIPHER * ciph,const char * from,const char * to,void * x),void * arg)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
do_all_md_fn(const OBJ_NAME * nm,void * arg)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
EVP_MD_do_all(void (* fn)(const EVP_MD * md,const char * from,const char * to,void * x),void * arg)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
EVP_MD_do_all_sorted(void (* fn)(const EVP_MD * md,const char * from,const char * to,void * x),void * arg)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