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/providercommon.h"
  19 #include "prov/implementations.h"
  20 #include "prov/provider_util.h"
  21 #include "internal/nelem.h"
  22
  23 #define ALGC(NAMES, FUNC, CHECK) { { NAMES, "default=yes", FUNC }, CHECK }
  24 #define ALG(NAMES, FUNC) ALGC(NAMES, FUNC, NULL)
  25
  26 /* Functions provided by the core */
  27 static OSSL_core_gettable_params_fn *c_gettable_params = NULL;
  28 static OSSL_core_get_params_fn *c_get_params = NULL;
  29
  30 /* Parameters we provide to the core */
  31 static const OSSL_PARAM deflt_param_types[] = {
  32     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
  33     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
  34     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
  35     OSSL_PARAM_END
  36 };
  37
  38 static const OSSL_PARAM *deflt_gettable_params(const OSSL_PROVIDER *prov)
  39 {
  40     return deflt_param_types;
  41 }
  42
  43 static int deflt_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
  44 {
  45     OSSL_PARAM *p;
  46
  47     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
  48     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Default Provider"))
  49         return 0;
  50     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
  51     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
  52         return 0;
  53     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
  54     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
  55         return 0;
  56
  57     return 1;
  58 }
  59
  60 /*
  61  * For the algorithm names, we use the following formula for our primary
  62  * names:
  63  *
  64  *     ALGNAME[VERSION?][-SUBNAME[VERSION?]?][-SIZE?][-MODE?]
  65  *
  66  *     VERSION is only present if there are multiple versions of
  67  *     an alg (MD2, MD4, MD5).  It may be omitted if there is only
  68  *     one version (if a subsequent version is released in the future,
  69  *     we can always change the canonical name, and add the old name
  70  *     as an alias).
  71  *
  72  *     SUBNAME may be present where we are combining multiple
  73  *     algorithms together, e.g. MD5-SHA1.
  74  *
  75  *     SIZE is only present if multiple versions of an algorithm exist
  76  *     with different sizes (e.g. AES-128-CBC, AES-256-CBC)
  77  *
  78  *     MODE is only present where applicable.
  79  *
  80  * We add diverse other names where applicable, such as the names that
  81  * NIST uses, or that are used for ASN.1 OBJECT IDENTIFIERs, or names
  82  * we have used historically.
  83  *
  84  * Algorithm names are case insensitive, but we use all caps in our "canonical"
  85  * names for consistency.
  86  */
  87 static const OSSL_ALGORITHM deflt_digests[] = {
  88     /* Our primary name:NIST name[:our older names] */
  89     { "SHA1:SHA-1", "default=yes", sha1_functions },
  90     { "SHA2-224:SHA-224:SHA224", "default=yes", sha224_functions },
  91     { "SHA2-256:SHA-256:SHA256", "default=yes", sha256_functions },
  92     { "SHA2-384:SHA-384:SHA384", "default=yes", sha384_functions },
  93     { "SHA2-512:SHA-512:SHA512", "default=yes", sha512_functions },
  94     { "SHA2-512/224:SHA-512/224:SHA512-224", "default=yes",
  95       sha512_224_functions },
  96     { "SHA2-512/256:SHA-512/256:SHA512-256", "default=yes",
  97       sha512_256_functions },
  98
  99     /* We agree with NIST here, so one name only */
 100     { "SHA3-224", "default=yes", sha3_224_functions },
 101     { "SHA3-256", "default=yes", sha3_256_functions },
 102     { "SHA3-384", "default=yes", sha3_384_functions },
 103     { "SHA3-512", "default=yes", sha3_512_functions },
 104
 105     /*
 106      * KECCAK-KMAC-128 and KECCAK-KMAC-256 as hashes are mostly useful for
 107      * the KMAC-128 and KMAC-256.
 108      */
 109     { "KECCAK-KMAC-128:KECCAK-KMAC128", "default=yes", keccak_kmac_128_functions },
 110     { "KECCAK-KMAC-256:KECCAK-KMAC256", "default=yes", keccak_kmac_256_functions },
 111
 112     /* Our primary name:NIST name */
 113     { "SHAKE-128:SHAKE128", "default=yes", shake_128_functions },
 114     { "SHAKE-256:SHAKE256", "default=yes", shake_256_functions },
 115
 116 #ifndef OPENSSL_NO_BLAKE2
 117     /*
 118      * https://blake2.net/ doesn't specify size variants,
 119      * but mentions that Bouncy Castle uses the names
 120      * BLAKE2b-160, BLAKE2b-256, BLAKE2b-384, and BLAKE2b-512
 121      * If we assume that "2b" and "2s" are versions, that pattern
 122      * fits with ours.  We also add our historical names.
 123      */
 124     { "BLAKE2S-256:BLAKE2s256", "default=yes", blake2s256_functions },
 125     { "BLAKE2B-512:BLAKE2b512", "default=yes", blake2b512_functions },
 126 #endif /* OPENSSL_NO_BLAKE2 */
 127
 128 #ifndef OPENSSL_NO_SM3
 129     { "SM3", "default=yes", sm3_functions },
 130 #endif /* OPENSSL_NO_SM3 */
 131
 132 #ifndef OPENSSL_NO_MD5
 133     { "MD5", "default=yes", md5_functions },
 134     { "MD5-SHA1", "default=yes", md5_sha1_functions },
 135 #endif /* OPENSSL_NO_MD5 */
 136
 137     { NULL, NULL, NULL }
 138 };
 139
 140 static const OSSL_ALGORITHM_CAPABLE deflt_ciphers[] = {
 141     ALG("NULL", null_functions),
 142     ALG("AES-256-ECB", aes256ecb_functions),
 143     ALG("AES-192-ECB", aes192ecb_functions),
 144     ALG("AES-128-ECB", aes128ecb_functions),
 145     ALG("AES-256-CBC", aes256cbc_functions),
 146     ALG("AES-192-CBC", aes192cbc_functions),
 147     ALG("AES-128-CBC", aes128cbc_functions),
 148     ALG("AES-256-OFB", aes256ofb_functions),
 149     ALG("AES-192-OFB", aes192ofb_functions),
 150     ALG("AES-128-OFB", aes128ofb_functions),
 151     ALG("AES-256-CFB", aes256cfb_functions),
 152     ALG("AES-192-CFB", aes192cfb_functions),
 153     ALG("AES-128-CFB", aes128cfb_functions),
 154     ALG("AES-256-CFB1", aes256cfb1_functions),
 155     ALG("AES-192-CFB1", aes192cfb1_functions),
 156     ALG("AES-128-CFB1", aes128cfb1_functions),
 157     ALG("AES-256-CFB8", aes256cfb8_functions),
 158     ALG("AES-192-CFB8", aes192cfb8_functions),
 159     ALG("AES-128-CFB8", aes128cfb8_functions),
 160     ALG("AES-256-CTR", aes256ctr_functions),
 161     ALG("AES-192-CTR", aes192ctr_functions),
 162     ALG("AES-128-CTR", aes128ctr_functions),
 163     ALG("AES-256-XTS", aes256xts_functions),
 164     ALG("AES-128-XTS", aes128xts_functions),
 165 #ifndef OPENSSL_NO_OCB
 166     ALG("AES-256-OCB", aes256ocb_functions),
 167     ALG("AES-192-OCB", aes192ocb_functions),
 168     ALG("AES-128-OCB", aes128ocb_functions),
 169 #endif /* OPENSSL_NO_OCB */
 170 #ifndef OPENSSL_NO_SIV
 171     ALG("AES-128-SIV", aes128siv_functions),
 172     ALG("AES-192-SIV", aes192siv_functions),
 173     ALG("AES-256-SIV", aes256siv_functions),
 174 #endif /* OPENSSL_NO_SIV */
 175     ALG("AES-256-GCM:id-aes256-GCM", aes256gcm_functions),
 176     ALG("AES-192-GCM:id-aes192-GCM", aes192gcm_functions),
 177     ALG("AES-128-GCM:id-aes128-GCM", aes128gcm_functions),
 178     ALG("AES-256-CCM:id-aes256-CCM", aes256ccm_functions),
 179     ALG("AES-192-CCM:id-aes192-CCM", aes192ccm_functions),
 180     ALG("AES-128-CCM:id-aes128-CCM", aes128ccm_functions),
 181     ALG("AES-256-WRAP:id-aes256-wrap:AES256-WRAP", aes256wrap_functions),
 182     ALG("AES-192-WRAP:id-aes192-wrap:AES192-WRAP", aes192wrap_functions),
 183     ALG("AES-128-WRAP:id-aes128-wrap:AES128-WRAP", aes128wrap_functions),
 184     ALG("AES-256-WRAP-PAD:id-aes256-wrap-pad:AES256-WRAP-PAD",
 185         aes256wrappad_functions),
 186     ALG("AES-192-WRAP-PAD:id-aes192-wrap-pad:AES192-WRAP-PAD",
 187         aes192wrappad_functions),
 188     ALG("AES-128-WRAP-PAD:id-aes128-wrap-pad:AES128-WRAP-PAD",
 189         aes128wrappad_functions),
 190     ALGC("AES-128-CBC-HMAC-SHA1", aes128cbc_hmac_sha1_functions,
 191          cipher_capable_aes_cbc_hmac_sha1),
 192     ALGC("AES-256-CBC-HMAC-SHA1", aes256cbc_hmac_sha1_functions,
 193          cipher_capable_aes_cbc_hmac_sha1),
 194     ALGC("AES-128-CBC-HMAC-SHA256", aes128cbc_hmac_sha256_functions,
 195         cipher_capable_aes_cbc_hmac_sha256),
 196     ALGC("AES-256-CBC-HMAC-SHA256", aes256cbc_hmac_sha256_functions,
 197          cipher_capable_aes_cbc_hmac_sha256),
 198 #ifndef OPENSSL_NO_ARIA
 199     ALG("ARIA-256-GCM", aria256gcm_functions),
 200     ALG("ARIA-192-GCM", aria192gcm_functions),
 201     ALG("ARIA-128-GCM", aria128gcm_functions),
 202     ALG("ARIA-256-CCM", aria256ccm_functions),
 203     ALG("ARIA-192-CCM", aria192ccm_functions),
 204     ALG("ARIA-128-CCM", aria128ccm_functions),
 205     ALG("ARIA-256-ECB", aria256ecb_functions),
 206     ALG("ARIA-192-ECB", aria192ecb_functions),
 207     ALG("ARIA-128-ECB", aria128ecb_functions),
 208     ALG("ARIA-256-CBC:ARIA256", aria256cbc_functions),
 209     ALG("ARIA-192-CBC:ARIA192", aria192cbc_functions),
 210     ALG("ARIA-128-CBC:ARIA128", aria128cbc_functions),
 211     ALG("ARIA-256-OFB", aria256ofb_functions),
 212     ALG("ARIA-192-OFB", aria192ofb_functions),
 213     ALG("ARIA-128-OFB", aria128ofb_functions),
 214     ALG("ARIA-256-CFB", aria256cfb_functions),
 215     ALG("ARIA-192-CFB", aria192cfb_functions),
 216     ALG("ARIA-128-CFB", aria128cfb_functions),
 217     ALG("ARIA-256-CFB1", aria256cfb1_functions),
 218     ALG("ARIA-192-CFB1", aria192cfb1_functions),
 219     ALG("ARIA-128-CFB1", aria128cfb1_functions),
 220     ALG("ARIA-256-CFB8", aria256cfb8_functions),
 221     ALG("ARIA-192-CFB8", aria192cfb8_functions),
 222     ALG("ARIA-128-CFB8", aria128cfb8_functions),
 223     ALG("ARIA-256-CTR", aria256ctr_functions),
 224     ALG("ARIA-192-CTR", aria192ctr_functions),
 225     ALG("ARIA-128-CTR", aria128ctr_functions),
 226 #endif /* OPENSSL_NO_ARIA */
 227 #ifndef OPENSSL_NO_CAMELLIA
 228     ALG("CAMELLIA-256-ECB", camellia256ecb_functions),
 229     ALG("CAMELLIA-192-ECB", camellia192ecb_functions),
 230     ALG("CAMELLIA-128-ECB", camellia128ecb_functions),
 231     ALG("CAMELLIA-256-CBC:CAMELLIA256", camellia256cbc_functions),
 232     ALG("CAMELLIA-192-CBC:CAMELLIA192", camellia192cbc_functions),
 233     ALG("CAMELLIA-128-CBC:CAMELLIA128", camellia128cbc_functions),
 234     ALG("CAMELLIA-256-OFB", camellia256ofb_functions),
 235     ALG("CAMELLIA-192-OFB", camellia192ofb_functions),
 236     ALG("CAMELLIA-128-OFB", camellia128ofb_functions),
 237     ALG("CAMELLIA-256-CFB", camellia256cfb_functions),
 238     ALG("CAMELLIA-192-CFB", camellia192cfb_functions),
 239     ALG("CAMELLIA-128-CFB", camellia128cfb_functions),
 240     ALG("CAMELLIA-256-CFB1", camellia256cfb1_functions),
 241     ALG("CAMELLIA-192-CFB1", camellia192cfb1_functions),
 242     ALG("CAMELLIA-128-CFB1", camellia128cfb1_functions),
 243     ALG("CAMELLIA-256-CFB8", camellia256cfb8_functions),
 244     ALG("CAMELLIA-192-CFB8", camellia192cfb8_functions),
 245     ALG("CAMELLIA-128-CFB8", camellia128cfb8_functions),
 246     ALG("CAMELLIA-256-CTR", camellia256ctr_functions),
 247     ALG("CAMELLIA-192-CTR", camellia192ctr_functions),
 248     ALG("CAMELLIA-128-CTR", camellia128ctr_functions),
 249 #endif /* OPENSSL_NO_CAMELLIA */
 250 #ifndef OPENSSL_NO_DES
 251     ALG("DES-EDE3-ECB:DES-EDE3", tdes_ede3_ecb_functions),
 252     ALG("DES-EDE3-CBC:DES3", tdes_ede3_cbc_functions),
 253     ALG("DES-EDE3-OFB", tdes_ede3_ofb_functions),
 254     ALG("DES-EDE3-CFB", tdes_ede3_cfb_functions),
 255     ALG("DES-EDE3-CFB8", tdes_ede3_cfb8_functions),
 256     ALG("DES-EDE3-CFB1", tdes_ede3_cfb1_functions),
 257     ALG("DES-EDE-ECB:DES-EDE", tdes_ede2_ecb_functions),
 258     ALG("DES-EDE-CBC", tdes_ede2_cbc_functions),
 259     ALG("DES-EDE-OFB", tdes_ede2_ofb_functions),
 260     ALG("DES-EDE-CFB", tdes_ede2_cfb_functions),
 261     ALG("DESX-CBC:DESX", tdes_desx_cbc_functions),
 262     ALG("DES3-WRAP:id-smime-alg-CMS3DESwrap", tdes_wrap_cbc_functions),
 263     ALG("DES-ECB", des_ecb_functions),
 264     ALG("DES-CBC:DES", des_cbc_functions),
 265     ALG("DES-OFB", des_ofb64_functions),
 266     ALG("DES-CFB", des_cfb64_functions),
 267     ALG("DES-CFB1", des_cfb1_functions),
 268     ALG("DES-CFB8", des_cfb8_functions),
 269 #endif /* OPENSSL_NO_DES */
 270 #ifndef OPENSSL_NO_BF
 271     ALG("BF-ECB", blowfish128ecb_functions),
 272     ALG("BF-CBC:BF:BLOWFISH", blowfish128cbc_functions),
 273     ALG("BF-OFB", blowfish64ofb64_functions),
 274     ALG("BF-CFB", blowfish64cfb64_functions),
 275 #endif /* OPENSSL_NO_BF */
 276 #ifndef OPENSSL_NO_IDEA
 277     ALG("IDEA-ECB", idea128ecb_functions),
 278     ALG("IDEA-CBC:IDEA", idea128cbc_functions),
 279     ALG("IDEA-OFB:IDEA-OFB64", idea128ofb64_functions),
 280     ALG("IDEA-CFB:IDEA-CFB64", idea128cfb64_functions),
 281 #endif /* OPENSSL_NO_IDEA */
 282 #ifndef OPENSSL_NO_CAST
 283     ALG("CAST5-ECB", cast5128ecb_functions),
 284     ALG("CAST5-CBC:CAST-CBC:CAST", cast5128cbc_functions),
 285     ALG("CAST5-OFB", cast564ofb64_functions),
 286     ALG("CAST5-CFB", cast564cfb64_functions),
 287 #endif /* OPENSSL_NO_CAST */
 288 #ifndef OPENSSL_NO_SEED
 289     ALG("SEED-ECB", seed128ecb_functions),
 290     ALG("SEED-CBC:SEED", seed128cbc_functions),
 291     ALG("SEED-OFB:SEED-OFB128", seed128ofb128_functions),
 292     ALG("SEED-CFB:SEED-CFB128", seed128cfb128_functions),
 293 #endif /* OPENSSL_NO_SEED */
 294 #ifndef OPENSSL_NO_SM4
 295     ALG("SM4-ECB", sm4128ecb_functions),
 296     ALG("SM4-CBC:SM4", sm4128cbc_functions),
 297     ALG("SM4-CTR", sm4128ctr_functions),
 298     ALG("SM4-OFB:SM4-OFB128", sm4128ofb128_functions),
 299     ALG("SM4-CFB:SM4-CFB128", sm4128cfb128_functions),
 300 #endif /* OPENSSL_NO_SM4 */
 301 #ifndef OPENSSL_NO_RC4
 302     ALG("RC4", rc4128_functions),
 303     ALG("RC4-40", rc440_functions),
 304 # ifndef OPENSSL_NO_MD5
 305     ALG("RC4-HMAC-MD5", rc4_hmac_md5_functions),
 306 # endif /* OPENSSL_NO_MD5 */
 307 #endif /* OPENSSL_NO_RC4 */
 308 #ifndef OPENSSL_NO_RC5
 309     ALG("RC5-ECB", rc5128ecb_functions),
 310     ALG("RC5-CBC", rc5128cbc_functions),
 311     ALG("RC5-OFB", rc5128ofb64_functions),
 312     ALG("RC5-CFB", rc5128cfb64_functions),
 313 #endif /* OPENSSL_NO_RC5 */
 314 #ifndef OPENSSL_NO_RC2
 315     ALG("RC2-ECB", rc2128ecb_functions),
 316     ALG("RC2-CBC", rc2128cbc_functions),
 317     ALG("RC2-40-CBC", rc240cbc_functions),
 318     ALG("RC2-64-CBC", rc264cbc_functions),
 319     ALG("RC2-CFB", rc2128cfb128_functions),
 320     ALG("RC2-OFB", rc2128ofb128_functions),
 321 #endif /* OPENSSL_NO_RC2 */
 322 #ifndef OPENSSL_NO_CHACHA
 323     ALG("ChaCha20", chacha20_functions),
 324 # ifndef OPENSSL_NO_POLY1305
 325     ALG("ChaCha20-Poly1305", chacha20_poly1305_functions),
 326 # endif /* OPENSSL_NO_POLY1305 */
 327 #endif /* OPENSSL_NO_CHACHA */
 328     { { NULL, NULL, NULL }, NULL }
 329 };
 330 static OSSL_ALGORITHM exported_ciphers[OSSL_NELEM(deflt_ciphers)];
 331
 332 static const OSSL_ALGORITHM deflt_macs[] = {
 333 #ifndef OPENSSL_NO_BLAKE2
 334     { "BLAKE2BMAC", "default=yes", blake2bmac_functions },
 335     { "BLAKE2SMAC", "default=yes", blake2smac_functions },
 336 #endif
 337 #ifndef OPENSSL_NO_CMAC
 338     { "CMAC", "default=yes", cmac_functions },
 339 #endif
 340     { "GMAC", "default=yes", gmac_functions },
 341     { "HMAC", "default=yes", hmac_functions },
 342     { "KMAC-128:KMAC128", "default=yes", kmac128_functions },
 343     { "KMAC-256:KMAC256", "default=yes", kmac256_functions },
 344 #ifndef OPENSSL_NO_SIPHASH
 345     { "SIPHASH", "default=yes", siphash_functions },
 346 #endif
 347 #ifndef OPENSSL_NO_POLY1305
 348     { "POLY1305", "default=yes", poly1305_functions },
 349 #endif
 350     { NULL, NULL, NULL }
 351 };
 352
 353 static const OSSL_ALGORITHM deflt_kdfs[] = {
 354     { "HKDF", "default=yes", kdf_hkdf_functions },
 355     { "SSKDF", "default=yes", kdf_sskdf_functions },
 356     { "PBKDF2", "default=yes", kdf_pbkdf2_functions },
 357     { "SSHKDF", "default=yes", kdf_sshkdf_functions },
 358     { "X963KDF", "default=yes", kdf_x963_kdf_functions },
 359     { "TLS1-PRF", "default=yes", kdf_tls1_prf_functions },
 360     { "KBKDF", "default=yes", kdf_kbkdf_functions },
 361 #ifndef OPENSSL_NO_CMS
 362     { "X942KDF", "default=yes", kdf_x942_kdf_functions },
 363 #endif
 364 #ifndef OPENSSL_NO_SCRYPT
 365     { "SCRYPT:id-scrypt", "default=yes", kdf_scrypt_functions },
 366 #endif
 367     { "KRB5KDF", "default=yes", kdf_krb5kdf_functions },
 368     { NULL, NULL, NULL }
 369 };
 370
 371 static const OSSL_ALGORITHM deflt_keyexch[] = {
 372 #ifndef OPENSSL_NO_DH
 373     { "DH:dhKeyAgreement", "default=yes", dh_keyexch_functions },
 374 #endif
 375 #ifndef OPENSSL_NO_EC
 376     { "X25519", "default=yes", x25519_keyexch_functions },
 377     { "X448", "default=yes", x448_keyexch_functions },
 378 #endif
 379     { NULL, NULL, NULL }
 380 };
 381
 382 static const OSSL_ALGORITHM deflt_signature[] = {
 383 #ifndef OPENSSL_NO_DSA
 384     { "DSA:dsaEncryption", "default=yes", dsa_signature_functions },
 385 #endif
 386     { NULL, NULL, NULL }
 387 };
 388
 389 static const OSSL_ALGORITHM deflt_asym_cipher[] = {
 390     { "RSA:rsaEncryption", "default=yes", rsa_asym_cipher_functions },
 391     { NULL, NULL, NULL }
 392 };
 393
 394 static const OSSL_ALGORITHM deflt_keymgmt[] = {
 395 #ifndef OPENSSL_NO_DH
 396     { "DH:dhKeyAgreement", "default=yes", dh_keymgmt_functions },
 397 #endif
 398 #ifndef OPENSSL_NO_DSA
 399     { "DSA:dsaEncryption", "default=yes", dsa_keymgmt_functions },
 400 #endif
 401     { "RSA:rsaEncryption", "default=yes", rsa_keymgmt_functions },
 402 #ifndef OPENSSL_NO_EC
 403     { "X25519", "default=yes", x25519_keymgmt_functions },
 404     { "X448", "default=yes", x448_keymgmt_functions },
 405 #endif
 406     { NULL, NULL, NULL }
 407 };
 408
 409 static const OSSL_ALGORITHM deflt_serializer[] = {
 410     { "RSA", "default=yes,format=text,type=private",
 411       rsa_priv_text_serializer_functions },
 412     { "RSA", "default=yes,format=text,type=public",
 413       rsa_pub_text_serializer_functions },
 414     { "RSA", "default=yes,format=der,type=private",
 415       rsa_priv_der_serializer_functions },
 416     { "RSA", "default=yes,format=der,type=public",
 417       rsa_pub_der_serializer_functions },
 418     { "RSA", "default=yes,format=pem,type=private",
 419       rsa_priv_pem_serializer_functions },
 420     { "RSA", "default=yes,format=pem,type=public",
 421       rsa_pub_pem_serializer_functions },
 422
 423 #ifndef OPENSSL_NO_DH
 424     { "DH", "default=yes,format=text,type=private",
 425       dh_priv_text_serializer_functions },
 426     { "DH", "default=yes,format=text,type=public",
 427       dh_pub_text_serializer_functions },
 428     { "DH", "default=yes,format=text,type=parameters",
 429       dh_param_text_serializer_functions },
 430     { "DH", "default=yes,format=der,type=private",
 431       dh_priv_der_serializer_functions },
 432     { "DH", "default=yes,format=der,type=public",
 433       dh_pub_der_serializer_functions },
 434     { "DH", "default=yes,format=der,type=parameters",
 435       dh_param_der_serializer_functions },
 436     { "DH", "default=yes,format=pem,type=private",
 437       dh_priv_pem_serializer_functions },
 438     { "DH", "default=yes,format=pem,type=public",
 439       dh_pub_pem_serializer_functions },
 440     { "DH", "default=yes,format=pem,type=parameters",
 441       dh_param_pem_serializer_functions },
 442 #endif
 443
 444 #ifndef OPENSSL_NO_DSA
 445     { "DSA", "default=yes,format=text,type=private",
 446       dsa_priv_text_serializer_functions },
 447     { "DSA", "default=yes,format=text,type=public",
 448       dsa_pub_text_serializer_functions },
 449     { "DSA", "default=yes,format=text,type=parameters",
 450       dsa_param_text_serializer_functions },
 451     { "DSA", "default=yes,format=der,type=private",
 452       dsa_priv_der_serializer_functions },
 453     { "DSA", "default=yes,format=der,type=public",
 454       dsa_pub_der_serializer_functions },
 455     { "DSA", "default=yes,format=der,type=parameters",
 456       dsa_param_der_serializer_functions },
 457     { "DSA", "default=yes,format=pem,type=private",
 458       dsa_priv_pem_serializer_functions },
 459     { "DSA", "default=yes,format=pem,type=public",
 460       dsa_pub_pem_serializer_functions },
 461     { "DSA", "default=yes,format=pem,type=parameters",
 462       dsa_param_pem_serializer_functions },
 463 #endif
 464
 465     { NULL, NULL, NULL }
 466 };
 467
 468 static const OSSL_ALGORITHM *deflt_query(OSSL_PROVIDER *prov,
 469                                          int operation_id,
 470                                          int *no_cache)
 471 {
 472     *no_cache = 0;
 473     switch (operation_id) {
 474     case OSSL_OP_DIGEST:
 475         return deflt_digests;
 476     case OSSL_OP_CIPHER:
 477         ossl_prov_cache_exported_algorithms(deflt_ciphers, exported_ciphers);
 478         return exported_ciphers;
 479     case OSSL_OP_MAC:
 480         return deflt_macs;
 481     case OSSL_OP_KDF:
 482         return deflt_kdfs;
 483     case OSSL_OP_KEYMGMT:
 484         return deflt_keymgmt;
 485     case OSSL_OP_KEYEXCH:
 486         return deflt_keyexch;
 487     case OSSL_OP_SIGNATURE:
 488         return deflt_signature;
 489     case OSSL_OP_ASYM_CIPHER:
 490         return deflt_asym_cipher;
 491     case OSSL_OP_SERIALIZER:
 492         return deflt_serializer;
 493     }
 494     return NULL;
 495 }
 496
 497 /* Functions we provide to the core */
 498 static const OSSL_DISPATCH deflt_dispatch_table[] = {
 499     { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))deflt_gettable_params },
 500     { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))deflt_get_params },
 501     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))deflt_query },
 502     { 0, NULL }
 503 };
 504
 505 OSSL_provider_init_fn ossl_default_provider_init;
 506
 507 int ossl_default_provider_init(const OSSL_PROVIDER *provider,
 508                                const OSSL_DISPATCH *in,
 509                                const OSSL_DISPATCH **out,
 510                                void **provctx)
 511 {
 512     OSSL_core_get_library_context_fn *c_get_libctx = NULL;
 513
 514     if (!ossl_prov_bio_from_dispatch(in))
 515         return 0;
 516     for (; in->function_id != 0; in++) {
 517         switch (in->function_id) {
 518         case OSSL_FUNC_CORE_GETTABLE_PARAMS:
 519             c_gettable_params = OSSL_get_core_gettable_params(in);
 520             break;
 521         case OSSL_FUNC_CORE_GET_PARAMS:
 522             c_get_params = OSSL_get_core_get_params(in);
 523             break;
 524         case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT:
 525             c_get_libctx = OSSL_get_core_get_library_context(in);
 526             break;
 527         default:
 528             /* Just ignore anything we don't understand */
 529             break;
 530         }
 531     }
 532
 533     if (c_get_libctx == NULL)
 534         return 0;
 535
 536     *out = deflt_dispatch_table;
 537
 538     /*
 539      * We want to make sure that all calls from this provider that requires
 540      * a library context use the same context as the one used to call our
 541      * functions.  We do that by passing it along as the provider context.
 542      */
 543     *provctx = c_get_libctx(provider);
 544     return 1;
 545 }