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Commit | Line | Data |
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62867571 | 1 | /* |
567db2c1 | 2 | * Copyright 1995-2018 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 | ||
75 | const EVP_CIPHER *evp_get_cipherbyname_ex(OPENSSL_CTX *libctx, const char *name) | |
0f113f3e MC |
76 | { |
77 | const EVP_CIPHER *cp; | |
7606bed9 MC |
78 | OSSL_NAMEMAP *namemap; |
79 | int id; | |
d02b48c6 | 80 | |
0fc32b07 MC |
81 | if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL)) |
82 | return NULL; | |
7b9f8f7f | 83 | |
0f113f3e | 84 | cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH); |
7606bed9 MC |
85 | |
86 | if (cp != NULL) | |
87 | return cp; | |
88 | ||
89 | /* | |
90 | * It's not in the method database, but it might be there under a different | |
91 | * name. So we check for aliases in the EVP namemap and try all of those | |
92 | * in turn. | |
93 | */ | |
94 | ||
95 | namemap = ossl_namemap_stored(libctx); | |
96 | id = ossl_namemap_name2num(namemap, name); | |
97 | if (id == 0) | |
98 | return NULL; | |
99 | ||
100 | ossl_namemap_doall_names(namemap, id, cipher_from_name, &cp); | |
101 | ||
26a7d938 | 102 | return cp; |
0f113f3e | 103 | } |
d02b48c6 | 104 | |
7606bed9 MC |
105 | static void digest_from_name(const char *name, void *data) |
106 | { | |
107 | const EVP_MD **md = data; | |
108 | ||
109 | if (*md != NULL) | |
110 | return; | |
111 | ||
112 | *md = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH); | |
113 | } | |
114 | ||
6b691a5c | 115 | const EVP_MD *EVP_get_digestbyname(const char *name) |
0f113f3e | 116 | { |
7606bed9 MC |
117 | return evp_get_digestbyname_ex(NULL, name); |
118 | } | |
119 | ||
120 | const EVP_MD *evp_get_digestbyname_ex(OPENSSL_CTX *libctx, const char *name) | |
121 | { | |
122 | const EVP_MD *dp; | |
123 | OSSL_NAMEMAP *namemap; | |
124 | int id; | |
d02b48c6 | 125 | |
0fc32b07 MC |
126 | if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL)) |
127 | return NULL; | |
7b9f8f7f | 128 | |
7606bed9 MC |
129 | dp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH); |
130 | ||
131 | if (dp != NULL) | |
132 | return dp; | |
133 | ||
134 | /* | |
135 | * It's not in the method database, but it might be there under a different | |
136 | * name. So we check for aliases in the EVP namemap and try all of those | |
137 | * in turn. | |
138 | */ | |
139 | ||
140 | namemap = ossl_namemap_stored(libctx); | |
141 | id = ossl_namemap_name2num(namemap, name); | |
142 | if (id == 0) | |
143 | return NULL; | |
144 | ||
145 | ossl_namemap_doall_names(namemap, id, digest_from_name, &dp); | |
146 | ||
147 | return dp; | |
0f113f3e | 148 | } |
d02b48c6 | 149 | |
b3599dbb | 150 | void evp_cleanup_int(void) |
0f113f3e | 151 | { |
d2ba8123 | 152 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_KDF_METH); |
0f113f3e MC |
153 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH); |
154 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH); | |
155 | /* | |
156 | * The above calls will only clean out the contents of the name hash | |
157 | * table, but not the hash table itself. The following line does that | |
158 | * part. -- Richard Levitte | |
159 | */ | |
160 | OBJ_NAME_cleanup(-1); | |
161 | ||
162 | EVP_PBE_cleanup(); | |
0f113f3e | 163 | OBJ_sigid_free(); |
0822e89a PY |
164 | |
165 | evp_app_cleanup_int(); | |
0f113f3e MC |
166 | } |
167 | ||
168 | struct doall_cipher { | |
169 | void *arg; | |
170 | void (*fn) (const EVP_CIPHER *ciph, | |
171 | const char *from, const char *to, void *arg); | |
172 | }; | |
5ba4bf35 DSH |
173 | |
174 | static void do_all_cipher_fn(const OBJ_NAME *nm, void *arg) | |
0f113f3e MC |
175 | { |
176 | struct doall_cipher *dc = arg; | |
177 | if (nm->alias) | |
178 | dc->fn(NULL, nm->name, nm->data, dc->arg); | |
179 | else | |
180 | dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg); | |
181 | } | |
182 | ||
183 | void EVP_CIPHER_do_all(void (*fn) (const EVP_CIPHER *ciph, | |
184 | const char *from, const char *to, void *x), | |
185 | void *arg) | |
186 | { | |
187 | struct doall_cipher dc; | |
7b9f8f7f | 188 | |
0fc32b07 | 189 | /* Ignore errors */ |
f672aee4 | 190 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL); |
7b9f8f7f | 191 | |
0f113f3e MC |
192 | dc.fn = fn; |
193 | dc.arg = arg; | |
194 | OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc); | |
195 | } | |
196 | ||
197 | void EVP_CIPHER_do_all_sorted(void (*fn) (const EVP_CIPHER *ciph, | |
198 | const char *from, const char *to, | |
199 | void *x), void *arg) | |
200 | { | |
201 | struct doall_cipher dc; | |
7b9f8f7f | 202 | |
0fc32b07 | 203 | /* Ignore errors */ |
f672aee4 | 204 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL); |
7b9f8f7f | 205 | |
0f113f3e MC |
206 | dc.fn = fn; |
207 | dc.arg = arg; | |
208 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc); | |
209 | } | |
210 | ||
211 | struct doall_md { | |
212 | void *arg; | |
213 | void (*fn) (const EVP_MD *ciph, | |
214 | const char *from, const char *to, void *arg); | |
215 | }; | |
5ba4bf35 DSH |
216 | |
217 | static void do_all_md_fn(const OBJ_NAME *nm, void *arg) | |
0f113f3e MC |
218 | { |
219 | struct doall_md *dc = arg; | |
220 | if (nm->alias) | |
221 | dc->fn(NULL, nm->name, nm->data, dc->arg); | |
222 | else | |
223 | dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg); | |
224 | } | |
225 | ||
226 | void EVP_MD_do_all(void (*fn) (const EVP_MD *md, | |
227 | const char *from, const char *to, void *x), | |
228 | void *arg) | |
229 | { | |
230 | struct doall_md dc; | |
7b9f8f7f | 231 | |
0fc32b07 | 232 | /* Ignore errors */ |
f672aee4 | 233 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); |
7b9f8f7f | 234 | |
0f113f3e MC |
235 | dc.fn = fn; |
236 | dc.arg = arg; | |
237 | OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); | |
238 | } | |
239 | ||
240 | void EVP_MD_do_all_sorted(void (*fn) (const EVP_MD *md, | |
241 | const char *from, const char *to, | |
242 | void *x), void *arg) | |
243 | { | |
244 | struct doall_md dc; | |
7b9f8f7f | 245 | |
f672aee4 | 246 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); |
7b9f8f7f | 247 | |
0f113f3e MC |
248 | dc.fn = fn; |
249 | dc.arg = arg; | |
250 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); | |
251 | } |