providers/defltprov.c

   1 /*
   2  * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (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 <string.h>
  11 #include <stdio.h>
  12 #include <openssl/opensslconf.h>
  13 #include <openssl/core.h>
  14 #include <openssl/core_numbers.h>
  15 #include <openssl/core_names.h>
  16 #include <openssl/params.h>
  17 #include "prov/bio.h"
  18 #include "prov/implementations.h"
  19
  20 /* Functions provided by the core */
  21 static OSSL_core_gettable_params_fn *c_gettable_params = NULL;
  22 static OSSL_core_get_params_fn *c_get_params = NULL;
  23
  24 /* Parameters we provide to the core */
  25 static const OSSL_PARAM deflt_param_types[] = {
  26     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
  27     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
  28     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
  29     OSSL_PARAM_END
  30 };
  31
  32 static const OSSL_PARAM *deflt_gettable_params(const OSSL_PROVIDER *prov)
  33 {
  34     return deflt_param_types;
  35 }
  36
  37 static int deflt_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
  38 {
  39     OSSL_PARAM *p;
  40
  41     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
  42     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Default Provider"))
  43         return 0;
  44     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
  45     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
  46         return 0;
  47     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
  48     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
  49         return 0;
  50
  51     return 1;
  52 }
  53
  54 /*
  55  * For the algorithm names, we use the following formula for our primary
  56  * names:
  57  *
  58  *     ALGNAME[VERSION?][-SUBNAME[VERSION?]?][-SIZE?][-MODE?]
  59  *
  60  *     VERSION is only present if there are multiple versions of
  61  *     an alg (MD2, MD4, MD5).  It may be omitted if there is only
  62  *     one version (if a subsequent version is released in the future,
  63  *     we can always change the canonical name, and add the old name
  64  *     as an alias).
  65  *
  66  *     SUBNAME may be present where we are combining multiple
  67  *     algorithms together, e.g. MD5-SHA1.
  68  *
  69  *     SIZE is only present if multiple versions of an algorithm exist
  70  *     with different sizes (e.g. AES-128-CBC, AES-256-CBC)
  71  *
  72  *     MODE is only present where applicable.
  73  *
  74  * We add diverse other names where applicable, such as the names that
  75  * NIST uses, or that are used for ASN.1 OBJECT IDENTIFIERs, or names
  76  * we have used historically.
  77  *
  78  * Algorithm names are case insensitive, but we use all caps in our "canonical"
  79  * names for consistency.
  80  */
  81 static const OSSL_ALGORITHM deflt_digests[] = {
  82     /* Our primary name:NIST name[:our older names] */
  83     { "SHA1:SHA-1", "default=yes", sha1_functions },
  84     { "SHA2-224:SHA-224:SHA224", "default=yes", sha224_functions },
  85     { "SHA2-256:SHA-256:SHA256", "default=yes", sha256_functions },
  86     { "SHA2-384:SHA-384:SHA384", "default=yes", sha384_functions },
  87     { "SHA2-512:SHA-512:SHA512", "default=yes", sha512_functions },
  88     { "SHA2-512/224:SHA-512/224:SHA512-224", "default=yes",
  89       sha512_224_functions },
  90     { "SHA2-512/256:SHA-512/256:SHA512-256", "default=yes",
  91       sha512_256_functions },
  92
  93     /* We agree with NIST here, so one name only */
  94     { "SHA3-224", "default=yes", sha3_224_functions },
  95     { "SHA3-256", "default=yes", sha3_256_functions },
  96     { "SHA3-384", "default=yes", sha3_384_functions },
  97     { "SHA3-512", "default=yes", sha3_512_functions },
  98
  99     /*
 100      * KECCAK-KMAC-128 and KECCAK-KMAC-256 as hashes are mostly useful for
 101      * the KMAC-128 and KMAC-256.
 102      */
 103     { "KECCAK-KMAC-128:KECCAK-KMAC128", "default=yes", keccak_kmac_128_functions },
 104     { "KECCAK-KMAC-256:KECCAK-KMAC256", "default=yes", keccak_kmac_256_functions },
 105
 106     /* Our primary name:NIST name */
 107     { "SHAKE-128:SHAKE128", "default=yes", shake_128_functions },
 108     { "SHAKE-256:SHAKE256", "default=yes", shake_256_functions },
 109
 110 #ifndef OPENSSL_NO_BLAKE2
 111     /*
 112      * https://blake2.net/ doesn't specify size variants,
 113      * but mentions that Bouncy Castle uses the names
 114      * BLAKE2b-160, BLAKE2b-256, BLAKE2b-384, and BLAKE2b-512
 115      * If we assume that "2b" and "2s" are versions, that pattern
 116      * fits with ours.  We also add our historical names.
 117      */
 118     { "BLAKE2S-256:BLAKE2s256", "default=yes", blake2s256_functions },
 119     { "BLAKE2B-512:BLAKE2b512", "default=yes", blake2b512_functions },
 120 #endif /* OPENSSL_NO_BLAKE2 */
 121
 122 #ifndef OPENSSL_NO_SM3
 123     { "SM3", "default=yes", sm3_functions },
 124 #endif /* OPENSSL_NO_SM3 */
 125
 126 #ifndef OPENSSL_NO_MD5
 127     { "MD5", "default=yes", md5_functions },
 128     { "MD5-SHA1", "default=yes", md5_sha1_functions },
 129 #endif /* OPENSSL_NO_MD5 */
 130
 131     { NULL, NULL, NULL }
 132 };
 133
 134 static const OSSL_ALGORITHM deflt_ciphers[] = {
 135     { "AES-256-ECB", "default=yes", aes256ecb_functions },
 136     { "AES-192-ECB", "default=yes", aes192ecb_functions },
 137     { "AES-128-ECB", "default=yes", aes128ecb_functions },
 138     { "AES-256-CBC", "default=yes", aes256cbc_functions },
 139     { "AES-192-CBC", "default=yes", aes192cbc_functions },
 140     { "AES-128-CBC", "default=yes", aes128cbc_functions },
 141     { "AES-256-OFB", "default=yes", aes256ofb_functions },
 142     { "AES-192-OFB", "default=yes", aes192ofb_functions },
 143     { "AES-128-OFB", "default=yes", aes128ofb_functions },
 144     { "AES-256-CFB", "default=yes", aes256cfb_functions },
 145     { "AES-192-CFB", "default=yes", aes192cfb_functions },
 146     { "AES-128-CFB", "default=yes", aes128cfb_functions },
 147     { "AES-256-CFB1", "default=yes", aes256cfb1_functions },
 148     { "AES-192-CFB1", "default=yes", aes192cfb1_functions },
 149     { "AES-128-CFB1", "default=yes", aes128cfb1_functions },
 150     { "AES-256-CFB8", "default=yes", aes256cfb8_functions },
 151     { "AES-192-CFB8", "default=yes", aes192cfb8_functions },
 152     { "AES-128-CFB8", "default=yes", aes128cfb8_functions },
 153     { "AES-256-CTR", "default=yes", aes256ctr_functions },
 154     { "AES-192-CTR", "default=yes", aes192ctr_functions },
 155     { "AES-128-CTR", "default=yes", aes128ctr_functions },
 156     { "AES-256-XTS", "default=yes", aes256xts_functions },
 157     { "AES-128-XTS", "default=yes", aes128xts_functions },
 158 #ifndef OPENSSL_NO_OCB
 159     { "AES-256-OCB", "default=yes", aes256ocb_functions },
 160     { "AES-192-OCB", "default=yes", aes192ocb_functions },
 161     { "AES-128-OCB", "default=yes", aes128ocb_functions },
 162 #endif /* OPENSSL_NO_OCB */
 163 #ifndef OPENSSL_NO_SIV
 164     { "AES-128-SIV", "default=yes", aes128siv_functions },
 165     { "AES-192-SIV", "default=yes", aes192siv_functions },
 166     { "AES-256-SIV", "default=yes", aes256siv_functions },
 167 #endif /* OPENSSL_NO_SIV */
 168     { "AES-256-GCM:id-aes256-GCM", "default=yes", aes256gcm_functions },
 169     { "AES-192-GCM:id-aes192-GCM", "default=yes", aes192gcm_functions },
 170     { "AES-128-GCM:id-aes128-GCM", "default=yes", aes128gcm_functions },
 171     { "AES-256-CCM:id-aes256-CCM", "default=yes", aes256ccm_functions },
 172     { "AES-192-CCM:id-aes192-CCM", "default=yes", aes192ccm_functions },
 173     { "AES-128-CCM:id-aes128-CCM", "default=yes", aes128ccm_functions },
 174     { "AES-256-WRAP:id-aes256-wrap:AES256-WRAP", "default=yes",
 175       aes256wrap_functions },
 176     { "AES-192-WRAP:id-aes192-wrap:AES192-WRAP", "default=yes",
 177       aes192wrap_functions },
 178     { "AES-128-WRAP:id-aes128-wrap:AES128-WRAP", "default=yes",
 179       aes128wrap_functions },
 180     { "AES-256-WRAP-PAD:id-aes256-wrap-pad:AES256-WRAP-PAD", "default=yes",
 181       aes256wrappad_functions },
 182     { "AES-192-WRAP-PAD:id-aes192-wrap-pad:AES192-WRAP-PAD", "default=yes",
 183       aes192wrappad_functions },
 184     { "AES-128-WRAP-PAD:id-aes128-wrap-pad:AES128-WRAP-PAD", "default=yes",
 185       aes128wrappad_functions },
 186 #ifndef OPENSSL_NO_ARIA
 187     { "ARIA-256-GCM", "default=yes", aria256gcm_functions },
 188     { "ARIA-192-GCM", "default=yes", aria192gcm_functions },
 189     { "ARIA-128-GCM", "default=yes", aria128gcm_functions },
 190     { "ARIA-256-CCM", "default=yes", aria256ccm_functions },
 191     { "ARIA-192-CCM", "default=yes", aria192ccm_functions },
 192     { "ARIA-128-CCM", "default=yes", aria128ccm_functions },
 193     { "ARIA-256-ECB", "default=yes", aria256ecb_functions },
 194     { "ARIA-192-ECB", "default=yes", aria192ecb_functions },
 195     { "ARIA-128-ECB", "default=yes", aria128ecb_functions },
 196     { "ARIA-256-CBC:ARIA256", "default=yes", aria256cbc_functions },
 197     { "ARIA-192-CBC:ARIA192", "default=yes", aria192cbc_functions },
 198     { "ARIA-128-CBC:ARIA128", "default=yes", aria128cbc_functions },
 199     { "ARIA-256-OFB", "default=yes", aria256ofb_functions },
 200     { "ARIA-192-OFB", "default=yes", aria192ofb_functions },
 201     { "ARIA-128-OFB", "default=yes", aria128ofb_functions },
 202     { "ARIA-256-CFB", "default=yes", aria256cfb_functions },
 203     { "ARIA-192-CFB", "default=yes", aria192cfb_functions },
 204     { "ARIA-128-CFB", "default=yes", aria128cfb_functions },
 205     { "ARIA-256-CFB1", "default=yes", aria256cfb1_functions },
 206     { "ARIA-192-CFB1", "default=yes", aria192cfb1_functions },
 207     { "ARIA-128-CFB1", "default=yes", aria128cfb1_functions },
 208     { "ARIA-256-CFB8", "default=yes", aria256cfb8_functions },
 209     { "ARIA-192-CFB8", "default=yes", aria192cfb8_functions },
 210     { "ARIA-128-CFB8", "default=yes", aria128cfb8_functions },
 211     { "ARIA-256-CTR", "default=yes", aria256ctr_functions },
 212     { "ARIA-192-CTR", "default=yes", aria192ctr_functions },
 213     { "ARIA-128-CTR", "default=yes", aria128ctr_functions },
 214 #endif /* OPENSSL_NO_ARIA */
 215 #ifndef OPENSSL_NO_CAMELLIA
 216     { "CAMELLIA-256-ECB", "default=yes", camellia256ecb_functions },
 217     { "CAMELLIA-192-ECB", "default=yes", camellia192ecb_functions },
 218     { "CAMELLIA-128-ECB", "default=yes", camellia128ecb_functions },
 219     { "CAMELLIA-256-CBC:CAMELLIA256", "default=yes", camellia256cbc_functions },
 220     { "CAMELLIA-192-CBC:CAMELLIA192", "default=yes", camellia192cbc_functions },
 221     { "CAMELLIA-128-CBC:CAMELLIA128", "default=yes", camellia128cbc_functions },
 222     { "CAMELLIA-256-OFB", "default=yes", camellia256ofb_functions },
 223     { "CAMELLIA-192-OFB", "default=yes", camellia192ofb_functions },
 224     { "CAMELLIA-128-OFB", "default=yes", camellia128ofb_functions },
 225     { "CAMELLIA-256-CFB", "default=yes", camellia256cfb_functions },
 226     { "CAMELLIA-192-CFB", "default=yes", camellia192cfb_functions },
 227     { "CAMELLIA-128-CFB", "default=yes", camellia128cfb_functions },
 228     { "CAMELLIA-256-CFB1", "default=yes", camellia256cfb1_functions },
 229     { "CAMELLIA-192-CFB1", "default=yes", camellia192cfb1_functions },
 230     { "CAMELLIA-128-CFB1", "default=yes", camellia128cfb1_functions },
 231     { "CAMELLIA-256-CFB8", "default=yes", camellia256cfb8_functions },
 232     { "CAMELLIA-192-CFB8", "default=yes", camellia192cfb8_functions },
 233     { "CAMELLIA-128-CFB8", "default=yes", camellia128cfb8_functions },
 234     { "CAMELLIA-256-CTR", "default=yes", camellia256ctr_functions },
 235     { "CAMELLIA-192-CTR", "default=yes", camellia192ctr_functions },
 236     { "CAMELLIA-128-CTR", "default=yes", camellia128ctr_functions },
 237 #endif /* OPENSSL_NO_CAMELLIA */
 238 #ifndef OPENSSL_NO_DES
 239     { "DES-EDE3-ECB:DES-EDE3", "default=yes", tdes_ede3_ecb_functions },
 240     { "DES-EDE3-CBC:DES3", "default=yes", tdes_ede3_cbc_functions },
 241     { "DES-EDE3-OFB", "default=yes", tdes_ede3_ofb_functions },
 242     { "DES-EDE3-CFB", "default=yes", tdes_ede3_cfb_functions },
 243     { "DES-EDE3-CFB8", "default=yes", tdes_ede3_cfb8_functions },
 244     { "DES-EDE3-CFB1", "default=yes", tdes_ede3_cfb1_functions },
 245     { "DES-EDE-ECB:DES-EDE", "default=yes", tdes_ede2_ecb_functions },
 246     { "DES-EDE-CBC", "default=yes", tdes_ede2_cbc_functions },
 247     { "DES-EDE-OFB", "default=yes", tdes_ede2_ofb_functions },
 248     { "DES-EDE-CFB", "default=yes", tdes_ede2_cfb_functions },
 249     { "DESX-CBC:DESX", "default=yes", tdes_desx_cbc_functions },
 250     { "DES3-WRAP:id-smime-alg-CMS3DESwrap", "default=yes", tdes_wrap_cbc_functions },
 251     { "DES-ECB", "default=yes", des_ecb_functions },
 252     { "DES-CBC:DES", "default=yes", des_cbc_functions },
 253     { "DES-OFB", "default=yes", des_ofb64_functions },
 254     { "DES-CFB", "default=yes", des_cfb64_functions },
 255     { "DES-CFB1", "default=yes", des_cfb1_functions },
 256     { "DES-CFB8", "default=yes", des_cfb8_functions },
 257 #endif /* OPENSSL_NO_DES */
 258 #ifndef OPENSSL_NO_BF
 259     { "BF-ECB", "default=yes", blowfish128ecb_functions },
 260     { "BF-CBC:BF:BLOWFISH", "default=yes", blowfish128cbc_functions },
 261     { "BF-OFB", "default=yes", blowfish64ofb64_functions },
 262     { "BF-CFB", "default=yes", blowfish64cfb64_functions },
 263 #endif /* OPENSSL_NO_BF */
 264 #ifndef OPENSSL_NO_IDEA
 265     { "IDEA-ECB", "default=yes", idea128ecb_functions },
 266     { "IDEA-CBC:IDEA", "default=yes", idea128cbc_functions },
 267     { "IDEA-OFB:IDEA-OFB64", "default=yes", idea128ofb64_functions },
 268     { "IDEA-CFB:IDEA-CFB64", "default=yes", idea128cfb64_functions },
 269 #endif /* OPENSSL_NO_IDEA */
 270 #ifndef OPENSSL_NO_CAST
 271     { "CAST5-ECB", "default=yes", cast5128ecb_functions },
 272     { "CAST5-CBC:CAST-CBC:CAST", "default=yes", cast5128cbc_functions },
 273     { "CAST5-OFB", "default=yes", cast564ofb64_functions },
 274     { "CAST5-CFB", "default=yes", cast564cfb64_functions },
 275 #endif /* OPENSSL_NO_CAST */
 276 #ifndef OPENSSL_NO_SEED
 277     { "SEED-ECB", "default=yes", seed128ecb_functions },
 278     { "SEED-CBC:SEED", "default=yes", seed128cbc_functions },
 279     { "SEED-OFB:SEED-OFB128", "default=yes", seed128ofb128_functions },
 280     { "SEED-CFB:SEED-CFB128", "default=yes", seed128cfb128_functions },
 281 #endif /* OPENSSL_NO_SEED */
 282 #ifndef OPENSSL_NO_SM4
 283     { "SM4-ECB", "default=yes", sm4128ecb_functions },
 284     { "SM4-CBC:SM4", "default=yes", sm4128cbc_functions },
 285     { "SM4-CTR", "default=yes", sm4128ctr_functions },
 286     { "SM4-OFB:SM4-OFB128", "default=yes", sm4128ofb128_functions },
 287     { "SM4-CFB:SM4-CFB128", "default=yes", sm4128cfb128_functions },
 288 #endif /* OPENSSL_NO_SM4 */
 289 #ifndef OPENSSL_NO_RC4
 290     { "RC4", "default=yes", rc4128_functions },
 291     { "RC4-40", "default=yes", rc440_functions },
 292 # ifndef OPENSSL_NO_MD5
 293     { "RC4-HMAC-MD5", "default=yes", rc4_hmac_md5_functions },
 294 # endif /* OPENSSL_NO_MD5 */
 295 #endif /* OPENSSL_NO_RC4 */
 296 #ifndef OPENSSL_NO_RC5
 297     { "RC5-ECB", "default=yes", rc5128ecb_functions },
 298     { "RC5-CBC", "default=yes", rc5128cbc_functions },
 299     { "RC5-OFB", "default=yes", rc5128ofb64_functions },
 300     { "RC5-CFB", "default=yes", rc5128cfb64_functions },
 301 #endif /* OPENSSL_NO_RC5 */
 302 #ifndef OPENSSL_NO_RC2
 303     { "RC2-ECB", "default=yes", rc2128ecb_functions },
 304     { "RC2-CBC", "default=yes", rc2128cbc_functions },
 305     { "RC2-40-CBC", "default=yes", rc240cbc_functions },
 306     { "RC2-64-CBC", "default=yes", rc264cbc_functions },
 307     { "RC2-CFB", "default=yes", rc2128cfb128_functions },
 308     { "RC2-OFB", "default=yes", rc2128ofb128_functions },
 309 #endif /* OPENSSL_NO_RC2 */
 310 #ifndef OPENSSL_NO_CHACHA
 311     { "ChaCha20", "default=yes", chacha20_functions },
 312 # ifndef OPENSSL_NO_POLY1305
 313     { "ChaCha20-Poly1305", "default=yes", chacha20_poly1305_functions },
 314 # endif /* OPENSSL_NO_POLY1305 */
 315 #endif /* OPENSSL_NO_CHACHA */
 316     { NULL, NULL, NULL }
 317 };
 318
 319 static const OSSL_ALGORITHM deflt_macs[] = {
 320 #ifndef OPENSSL_NO_BLAKE2
 321     { "BLAKE2BMAC", "default=yes", blake2bmac_functions },
 322     { "BLAKE2SMAC", "default=yes", blake2smac_functions },
 323 #endif
 324 #ifndef OPENSSL_NO_CMAC
 325     { "CMAC", "default=yes", cmac_functions },
 326 #endif
 327     { "GMAC", "default=yes", gmac_functions },
 328     { "HMAC", "default=yes", hmac_functions },
 329     { "KMAC-128:KMAC128", "default=yes", kmac128_functions },
 330     { "KMAC-256:KMAC256", "default=yes", kmac256_functions },
 331 #ifndef OPENSSL_NO_SIPHASH
 332     { "SIPHASH", "default=yes", siphash_functions },
 333 #endif
 334 #ifndef OPENSSL_NO_POLY1305
 335     { "POLY1305", "default=yes", poly1305_functions },
 336 #endif
 337     { NULL, NULL, NULL }
 338 };
 339
 340 static const OSSL_ALGORITHM deflt_kdfs[] = {
 341     { "HKDF", "default=yes", kdf_hkdf_functions },
 342     { "SSKDF", "default=yes", kdf_sskdf_functions },
 343     { "PBKDF2", "default=yes", kdf_pbkdf2_functions },
 344     { "SSHKDF", "default=yes", kdf_sshkdf_functions },
 345     { "X963KDF", "default=yes", kdf_x963_kdf_functions },
 346     { "TLS1-PRF", "default=yes", kdf_tls1_prf_functions },
 347     { "KBKDF", "default=yes", kdf_kbkdf_functions },
 348 #ifndef OPENSSL_NO_CMS
 349     { "X942KDF", "default=yes", kdf_x942_kdf_functions },
 350 #endif
 351 #ifndef OPENSSL_NO_SCRYPT
 352     { "SCRYPT:id-scrypt", "default=yes", kdf_scrypt_functions },
 353 #endif
 354     { "KRB5KDF", "default=yes", kdf_krb5kdf_functions },
 355     { NULL, NULL, NULL }
 356 };
 357
 358 static const OSSL_ALGORITHM deflt_keyexch[] = {
 359 #ifndef OPENSSL_NO_DH
 360     { "DH:dhKeyAgreement", "default=yes", dh_keyexch_functions },
 361 #endif
 362     { NULL, NULL, NULL }
 363 };
 364
 365 static const OSSL_ALGORITHM deflt_signature[] = {
 366 #ifndef OPENSSL_NO_DSA
 367     { "DSA:dsaEncryption", "default=yes", dsa_signature_functions },
 368 #endif
 369     { NULL, NULL, NULL }
 370 };
 371
 372 static const OSSL_ALGORITHM deflt_asym_cipher[] = {
 373     { "RSA:rsaEncryption", "default=yes", rsa_asym_cipher_functions },
 374     { NULL, NULL, NULL }
 375 };
 376
 377 static const OSSL_ALGORITHM deflt_keymgmt[] = {
 378 #ifndef OPENSSL_NO_DH
 379     { "DH", "default=yes", dh_keymgmt_functions },
 380 #endif
 381 #ifndef OPENSSL_NO_DSA
 382     { "DSA", "default=yes", dsa_keymgmt_functions },
 383 #endif
 384     { "RSA", "default=yes", rsa_keymgmt_functions },
 385     { NULL, NULL, NULL }
 386 };
 387
 388 static const OSSL_ALGORITHM *deflt_query(OSSL_PROVIDER *prov,
 389                                          int operation_id,
 390                                          int *no_cache)
 391 {
 392     *no_cache = 0;
 393     switch (operation_id) {
 394     case OSSL_OP_DIGEST:
 395         return deflt_digests;
 396     case OSSL_OP_CIPHER:
 397         return deflt_ciphers;
 398     case OSSL_OP_MAC:
 399         return deflt_macs;
 400     case OSSL_OP_KDF:
 401         return deflt_kdfs;
 402     case OSSL_OP_KEYMGMT:
 403         return deflt_keymgmt;
 404     case OSSL_OP_KEYEXCH:
 405         return deflt_keyexch;
 406     case OSSL_OP_SIGNATURE:
 407         return deflt_signature;
 408     case OSSL_OP_ASYM_CIPHER:
 409         return deflt_asym_cipher;
 410     }
 411     return NULL;
 412 }
 413
 414 /* Functions we provide to the core */
 415 static const OSSL_DISPATCH deflt_dispatch_table[] = {
 416     { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))deflt_gettable_params },
 417     { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))deflt_get_params },
 418     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))deflt_query },
 419     { 0, NULL }
 420 };
 421
 422 OSSL_provider_init_fn ossl_default_provider_init;
 423
 424 int ossl_default_provider_init(const OSSL_PROVIDER *provider,
 425                                const OSSL_DISPATCH *in,
 426                                const OSSL_DISPATCH **out,
 427                                void **provctx)
 428 {
 429     OSSL_core_get_library_context_fn *c_get_libctx = NULL;
 430
 431     if (!ossl_prov_bio_from_dispatch(in))
 432         return 0;
 433     for (; in->function_id != 0; in++) {
 434         switch (in->function_id) {
 435         case OSSL_FUNC_CORE_GETTABLE_PARAMS:
 436             c_gettable_params = OSSL_get_core_gettable_params(in);
 437             break;
 438         case OSSL_FUNC_CORE_GET_PARAMS:
 439             c_get_params = OSSL_get_core_get_params(in);
 440             break;
 441         case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT:
 442             c_get_libctx = OSSL_get_core_get_library_context(in);
 443             break;
 444         default:
 445             /* Just ignore anything we don't understand */
 446             break;
 447         }
 448     }
 449
 450     if (c_get_libctx == NULL)
 451         return 0;
 452
 453     *out = deflt_dispatch_table;
 454
 455     /*
 456      * We want to make sure that all calls from this provider that requires
 457      * a library context use the same context as the one used to call our
 458      * functions.  We do that by passing it along as the provider context.
 459      */
 460     *provctx = c_get_libctx(provider);
 461     return 1;
 462 }