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Commit | Line | Data |
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62867571 | 1 | /* |
eec0ad10 | 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
ec577822 | 11 | #include <openssl/evp.h> |
d2ba8123 | 12 | #include <openssl/kdf.h> |
ec577822 | 13 | #include <openssl/x509.h> |
7606bed9 MC |
14 | #include "internal/cryptlib.h" |
15 | #include "internal/namemap.h" | |
16 | #include "crypto/objects.h" | |
25f2138b | 17 | #include "crypto/evp.h" |
d02b48c6 | 18 | |
13588350 | 19 | int EVP_add_cipher(const EVP_CIPHER *c) |
0f113f3e MC |
20 | { |
21 | int r; | |
22 | ||
23 | if (c == NULL) | |
24 | return 0; | |
25 | ||
26 | r = OBJ_NAME_add(OBJ_nid2sn(c->nid), OBJ_NAME_TYPE_CIPHER_METH, | |
27 | (const char *)c); | |
28 | if (r == 0) | |
26a7d938 | 29 | return 0; |
0f113f3e MC |
30 | r = OBJ_NAME_add(OBJ_nid2ln(c->nid), OBJ_NAME_TYPE_CIPHER_METH, |
31 | (const char *)c); | |
26a7d938 | 32 | return r; |
0f113f3e | 33 | } |
5ba4bf35 | 34 | |
13588350 | 35 | int EVP_add_digest(const EVP_MD *md) |
0f113f3e MC |
36 | { |
37 | int r; | |
38 | const char *name; | |
39 | ||
40 | name = OBJ_nid2sn(md->type); | |
41 | r = OBJ_NAME_add(name, OBJ_NAME_TYPE_MD_METH, (const char *)md); | |
42 | if (r == 0) | |
26a7d938 | 43 | return 0; |
0f113f3e MC |
44 | r = OBJ_NAME_add(OBJ_nid2ln(md->type), OBJ_NAME_TYPE_MD_METH, |
45 | (const char *)md); | |
46 | if (r == 0) | |
26a7d938 | 47 | return 0; |
0f113f3e MC |
48 | |
49 | if (md->pkey_type && md->type != md->pkey_type) { | |
50 | r = OBJ_NAME_add(OBJ_nid2sn(md->pkey_type), | |
51 | OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name); | |
52 | if (r == 0) | |
26a7d938 | 53 | return 0; |
0f113f3e MC |
54 | r = OBJ_NAME_add(OBJ_nid2ln(md->pkey_type), |
55 | OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name); | |
56 | } | |
26a7d938 | 57 | return r; |
0f113f3e | 58 | } |
d02b48c6 | 59 | |
7606bed9 MC |
60 | static void cipher_from_name(const char *name, void *data) |
61 | { | |
62 | const EVP_CIPHER **cipher = data; | |
63 | ||
64 | if (*cipher != NULL) | |
65 | return; | |
66 | ||
67 | *cipher = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH); | |
68 | } | |
69 | ||
6b691a5c | 70 | const EVP_CIPHER *EVP_get_cipherbyname(const char *name) |
7606bed9 MC |
71 | { |
72 | return evp_get_cipherbyname_ex(NULL, name); | |
73 | } | |
74 | ||
b4250010 DMSP |
75 | const EVP_CIPHER *evp_get_cipherbyname_ex(OSSL_LIB_CTX *libctx, |
76 | const char *name) | |
0f113f3e MC |
77 | { |
78 | const EVP_CIPHER *cp; | |
7606bed9 MC |
79 | OSSL_NAMEMAP *namemap; |
80 | int id; | |
d02b48c6 | 81 | |
0fc32b07 MC |
82 | if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL)) |
83 | return NULL; | |
7b9f8f7f | 84 | |
0f113f3e | 85 | cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH); |
7606bed9 MC |
86 | |
87 | if (cp != NULL) | |
88 | return cp; | |
89 | ||
90 | /* | |
91 | * It's not in the method database, but it might be there under a different | |
92 | * name. So we check for aliases in the EVP namemap and try all of those | |
93 | * in turn. | |
94 | */ | |
95 | ||
96 | namemap = ossl_namemap_stored(libctx); | |
97 | id = ossl_namemap_name2num(namemap, name); | |
98 | if (id == 0) | |
99 | return NULL; | |
100 | ||
d84f5515 MC |
101 | if (!ossl_namemap_doall_names(namemap, id, cipher_from_name, &cp)) |
102 | return NULL; | |
7606bed9 | 103 | |
26a7d938 | 104 | return cp; |
0f113f3e | 105 | } |
d02b48c6 | 106 | |
7606bed9 MC |
107 | static void digest_from_name(const char *name, void *data) |
108 | { | |
109 | const EVP_MD **md = data; | |
110 | ||
111 | if (*md != NULL) | |
112 | return; | |
113 | ||
114 | *md = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH); | |
115 | } | |
116 | ||
6b691a5c | 117 | const EVP_MD *EVP_get_digestbyname(const char *name) |
0f113f3e | 118 | { |
7606bed9 MC |
119 | return evp_get_digestbyname_ex(NULL, name); |
120 | } | |
121 | ||
b4250010 | 122 | const EVP_MD *evp_get_digestbyname_ex(OSSL_LIB_CTX *libctx, const char *name) |
7606bed9 MC |
123 | { |
124 | const EVP_MD *dp; | |
125 | OSSL_NAMEMAP *namemap; | |
126 | int id; | |
d02b48c6 | 127 | |
0fc32b07 MC |
128 | if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL)) |
129 | return NULL; | |
7b9f8f7f | 130 | |
7606bed9 MC |
131 | dp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH); |
132 | ||
133 | if (dp != NULL) | |
134 | return dp; | |
135 | ||
136 | /* | |
137 | * It's not in the method database, but it might be there under a different | |
138 | * name. So we check for aliases in the EVP namemap and try all of those | |
139 | * in turn. | |
140 | */ | |
141 | ||
142 | namemap = ossl_namemap_stored(libctx); | |
143 | id = ossl_namemap_name2num(namemap, name); | |
144 | if (id == 0) | |
145 | return NULL; | |
146 | ||
d84f5515 MC |
147 | if (!ossl_namemap_doall_names(namemap, id, digest_from_name, &dp)) |
148 | return NULL; | |
7606bed9 MC |
149 | |
150 | return dp; | |
0f113f3e | 151 | } |
d02b48c6 | 152 | |
b3599dbb | 153 | void evp_cleanup_int(void) |
0f113f3e | 154 | { |
d2ba8123 | 155 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_KDF_METH); |
0f113f3e MC |
156 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH); |
157 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH); | |
158 | /* | |
159 | * The above calls will only clean out the contents of the name hash | |
160 | * table, but not the hash table itself. The following line does that | |
161 | * part. -- Richard Levitte | |
162 | */ | |
163 | OBJ_NAME_cleanup(-1); | |
164 | ||
165 | EVP_PBE_cleanup(); | |
0f113f3e | 166 | OBJ_sigid_free(); |
0822e89a PY |
167 | |
168 | evp_app_cleanup_int(); | |
0f113f3e MC |
169 | } |
170 | ||
171 | struct doall_cipher { | |
172 | void *arg; | |
173 | void (*fn) (const EVP_CIPHER *ciph, | |
174 | const char *from, const char *to, void *arg); | |
175 | }; | |
5ba4bf35 DSH |
176 | |
177 | static void do_all_cipher_fn(const OBJ_NAME *nm, void *arg) | |
0f113f3e MC |
178 | { |
179 | struct doall_cipher *dc = arg; | |
180 | if (nm->alias) | |
181 | dc->fn(NULL, nm->name, nm->data, dc->arg); | |
182 | else | |
183 | dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg); | |
184 | } | |
185 | ||
186 | void EVP_CIPHER_do_all(void (*fn) (const EVP_CIPHER *ciph, | |
187 | const char *from, const char *to, void *x), | |
188 | void *arg) | |
189 | { | |
190 | struct doall_cipher dc; | |
7b9f8f7f | 191 | |
0fc32b07 | 192 | /* Ignore errors */ |
f672aee4 | 193 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL); |
7b9f8f7f | 194 | |
0f113f3e MC |
195 | dc.fn = fn; |
196 | dc.arg = arg; | |
197 | OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc); | |
198 | } | |
199 | ||
200 | void EVP_CIPHER_do_all_sorted(void (*fn) (const EVP_CIPHER *ciph, | |
201 | const char *from, const char *to, | |
202 | void *x), void *arg) | |
203 | { | |
204 | struct doall_cipher dc; | |
7b9f8f7f | 205 | |
0fc32b07 | 206 | /* Ignore errors */ |
f672aee4 | 207 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL); |
7b9f8f7f | 208 | |
0f113f3e MC |
209 | dc.fn = fn; |
210 | dc.arg = arg; | |
211 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc); | |
212 | } | |
213 | ||
214 | struct doall_md { | |
215 | void *arg; | |
216 | void (*fn) (const EVP_MD *ciph, | |
217 | const char *from, const char *to, void *arg); | |
218 | }; | |
5ba4bf35 DSH |
219 | |
220 | static void do_all_md_fn(const OBJ_NAME *nm, void *arg) | |
0f113f3e MC |
221 | { |
222 | struct doall_md *dc = arg; | |
223 | if (nm->alias) | |
224 | dc->fn(NULL, nm->name, nm->data, dc->arg); | |
225 | else | |
226 | dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg); | |
227 | } | |
228 | ||
229 | void EVP_MD_do_all(void (*fn) (const EVP_MD *md, | |
230 | const char *from, const char *to, void *x), | |
231 | void *arg) | |
232 | { | |
233 | struct doall_md dc; | |
7b9f8f7f | 234 | |
0fc32b07 | 235 | /* Ignore errors */ |
f672aee4 | 236 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); |
7b9f8f7f | 237 | |
0f113f3e MC |
238 | dc.fn = fn; |
239 | dc.arg = arg; | |
240 | OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); | |
241 | } | |
242 | ||
243 | void EVP_MD_do_all_sorted(void (*fn) (const EVP_MD *md, | |
244 | const char *from, const char *to, | |
245 | void *x), void *arg) | |
246 | { | |
247 | struct doall_md dc; | |
7b9f8f7f | 248 | |
f672aee4 | 249 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); |
7b9f8f7f | 250 | |
0f113f3e MC |
251 | dc.fn = fn; |
252 | dc.arg = arg; | |
253 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); | |
254 | } |