lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the OpenSSL license (the "License"). You may not use |
| 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 |
| 8 | */ |
| 9 | |
| 10 | #include <stdio.h> |
| 11 | #include "internal/cryptlib.h" |
| 12 | #include <openssl/evp.h> |
| 13 | #include "crypto/objects.h" |
| 14 | #include <openssl/x509.h> |
| 15 | #include "crypto/evp.h" |
| 16 | |
| 17 | int EVP_add_cipher(const EVP_CIPHER *c) |
| 18 | { |
| 19 | int r; |
| 20 | |
| 21 | if (c == NULL) |
| 22 | return 0; |
| 23 | |
| 24 | r = OBJ_NAME_add(OBJ_nid2sn(c->nid), OBJ_NAME_TYPE_CIPHER_METH, |
| 25 | (const char *)c); |
| 26 | if (r == 0) |
| 27 | return 0; |
| 28 | r = OBJ_NAME_add(OBJ_nid2ln(c->nid), OBJ_NAME_TYPE_CIPHER_METH, |
| 29 | (const char *)c); |
| 30 | return r; |
| 31 | } |
| 32 | |
| 33 | int EVP_add_digest(const EVP_MD *md) |
| 34 | { |
| 35 | int r; |
| 36 | const char *name; |
| 37 | |
| 38 | name = OBJ_nid2sn(md->type); |
| 39 | r = OBJ_NAME_add(name, OBJ_NAME_TYPE_MD_METH, (const char *)md); |
| 40 | if (r == 0) |
| 41 | return 0; |
| 42 | r = OBJ_NAME_add(OBJ_nid2ln(md->type), OBJ_NAME_TYPE_MD_METH, |
| 43 | (const char *)md); |
| 44 | if (r == 0) |
| 45 | return 0; |
| 46 | |
| 47 | if (md->pkey_type && md->type != md->pkey_type) { |
| 48 | r = OBJ_NAME_add(OBJ_nid2sn(md->pkey_type), |
| 49 | OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name); |
| 50 | if (r == 0) |
| 51 | return 0; |
| 52 | r = OBJ_NAME_add(OBJ_nid2ln(md->pkey_type), |
| 53 | OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name); |
| 54 | } |
| 55 | return r; |
| 56 | } |
| 57 | |
| 58 | const EVP_CIPHER *EVP_get_cipherbyname(const char *name) |
| 59 | { |
| 60 | const EVP_CIPHER *cp; |
| 61 | |
| 62 | if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL)) |
| 63 | return NULL; |
| 64 | |
| 65 | cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH); |
| 66 | return cp; |
| 67 | } |
| 68 | |
| 69 | const EVP_MD *EVP_get_digestbyname(const char *name) |
| 70 | { |
| 71 | const EVP_MD *cp; |
| 72 | |
| 73 | if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL)) |
| 74 | return NULL; |
| 75 | |
| 76 | cp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH); |
| 77 | return cp; |
| 78 | } |
| 79 | |
| 80 | void evp_cleanup_int(void) |
| 81 | { |
| 82 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH); |
| 83 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH); |
| 84 | /* |
| 85 | * The above calls will only clean out the contents of the name hash |
| 86 | * table, but not the hash table itself. The following line does that |
| 87 | * part. -- Richard Levitte |
| 88 | */ |
| 89 | OBJ_NAME_cleanup(-1); |
| 90 | |
| 91 | EVP_PBE_cleanup(); |
| 92 | OBJ_sigid_free(); |
| 93 | |
| 94 | evp_app_cleanup_int(); |
| 95 | } |
| 96 | |
| 97 | struct doall_cipher { |
| 98 | void *arg; |
| 99 | void (*fn) (const EVP_CIPHER *ciph, |
| 100 | const char *from, const char *to, void *arg); |
| 101 | }; |
| 102 | |
| 103 | static void do_all_cipher_fn(const OBJ_NAME *nm, void *arg) |
| 104 | { |
| 105 | struct doall_cipher *dc = arg; |
| 106 | if (nm->alias) |
| 107 | dc->fn(NULL, nm->name, nm->data, dc->arg); |
| 108 | else |
| 109 | dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg); |
| 110 | } |
| 111 | |
| 112 | void EVP_CIPHER_do_all(void (*fn) (const EVP_CIPHER *ciph, |
| 113 | const char *from, const char *to, void *x), |
| 114 | void *arg) |
| 115 | { |
| 116 | struct doall_cipher dc; |
| 117 | |
| 118 | /* Ignore errors */ |
| 119 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL); |
| 120 | |
| 121 | dc.fn = fn; |
| 122 | dc.arg = arg; |
| 123 | OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc); |
| 124 | } |
| 125 | |
| 126 | void EVP_CIPHER_do_all_sorted(void (*fn) (const EVP_CIPHER *ciph, |
| 127 | const char *from, const char *to, |
| 128 | void *x), void *arg) |
| 129 | { |
| 130 | struct doall_cipher dc; |
| 131 | |
| 132 | /* Ignore errors */ |
| 133 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL); |
| 134 | |
| 135 | dc.fn = fn; |
| 136 | dc.arg = arg; |
| 137 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc); |
| 138 | } |
| 139 | |
| 140 | struct doall_md { |
| 141 | void *arg; |
| 142 | void (*fn) (const EVP_MD *ciph, |
| 143 | const char *from, const char *to, void *arg); |
| 144 | }; |
| 145 | |
| 146 | static void do_all_md_fn(const OBJ_NAME *nm, void *arg) |
| 147 | { |
| 148 | struct doall_md *dc = arg; |
| 149 | if (nm->alias) |
| 150 | dc->fn(NULL, nm->name, nm->data, dc->arg); |
| 151 | else |
| 152 | dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg); |
| 153 | } |
| 154 | |
| 155 | void EVP_MD_do_all(void (*fn) (const EVP_MD *md, |
| 156 | const char *from, const char *to, void *x), |
| 157 | void *arg) |
| 158 | { |
| 159 | struct doall_md dc; |
| 160 | |
| 161 | /* Ignore errors */ |
| 162 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); |
| 163 | |
| 164 | dc.fn = fn; |
| 165 | dc.arg = arg; |
| 166 | OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); |
| 167 | } |
| 168 | |
| 169 | void EVP_MD_do_all_sorted(void (*fn) (const EVP_MD *md, |
| 170 | const char *from, const char *to, |
| 171 | void *x), void *arg) |
| 172 | { |
| 173 | struct doall_md dc; |
| 174 | |
| 175 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); |
| 176 | |
| 177 | dc.fn = fn; |
| 178 | dc.arg = arg; |
| 179 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc); |
| 180 | } |