providers/fips/fipsprov.c

   1 /*
   2  * Copyright 2019-2020 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/core.h>
  13 #include <openssl/core_numbers.h>
  14 #include <openssl/core_names.h>
  15 #include <openssl/params.h>
  16 #include <openssl/err.h>
  17 #include <openssl/evp.h>
  18 #include <openssl/kdf.h>
  19
  20 /* TODO(3.0): Needed for dummy_evp_call(). To be removed */
  21 #include <openssl/sha.h>
  22 #include <openssl/rand_drbg.h>
  23 #include <openssl/ec.h>
  24 #include <openssl/fips_names.h>
  25
  26 #include "internal/cryptlib.h"
  27 #include "internal/property.h"
  28 #include "internal/nelem.h"
  29 #include "openssl/param_build.h"
  30 #include "crypto/evp.h"
  31 #include "prov/implementations.h"
  32 #include "prov/provider_ctx.h"
  33 #include "prov/providercommon.h"
  34 #include "prov/provider_util.h"
  35 #include "self_test.h"
  36
  37 /*
  38  * Forward declarations to ensure that interface functions are correctly
  39  * defined.
  40  */
  41 static OSSL_provider_teardown_fn fips_teardown;
  42 static OSSL_provider_gettable_params_fn fips_gettable_params;
  43 static OSSL_provider_get_params_fn fips_get_params;
  44 static OSSL_provider_query_operation_fn fips_query;
  45
  46 #define ALGC(NAMES, FUNC, CHECK) { { NAMES, "provider=fips,fips=yes", FUNC }, CHECK }
  47 #define ALG(NAMES, FUNC) ALGC(NAMES, FUNC, NULL)
  48
  49 extern OSSL_core_thread_start_fn *c_thread_start;
  50
  51 /*
  52  * TODO(3.0): Should these be stored in the provider side provctx? Could they
  53  * ever be different from one init to the next? Unfortunately we can't do this
  54  * at the moment because c_put_error/c_add_error_vdata do not provide
  55  * us with the OPENSSL_CTX as a parameter.
  56  */
  57
  58 static SELF_TEST_POST_PARAMS selftest_params;
  59
  60 /* Functions provided by the core */
  61 static OSSL_core_gettable_params_fn *c_gettable_params;
  62 static OSSL_core_get_params_fn *c_get_params;
  63 OSSL_core_thread_start_fn *c_thread_start;
  64 static OSSL_core_new_error_fn *c_new_error;
  65 static OSSL_core_set_error_debug_fn *c_set_error_debug;
  66 static OSSL_core_vset_error_fn *c_vset_error;
  67 static OSSL_core_set_error_mark_fn *c_set_error_mark;
  68 static OSSL_core_clear_last_error_mark_fn *c_clear_last_error_mark;
  69 static OSSL_core_pop_error_to_mark_fn *c_pop_error_to_mark;
  70 static OSSL_CRYPTO_malloc_fn *c_CRYPTO_malloc;
  71 static OSSL_CRYPTO_zalloc_fn *c_CRYPTO_zalloc;
  72 static OSSL_CRYPTO_free_fn *c_CRYPTO_free;
  73 static OSSL_CRYPTO_clear_free_fn *c_CRYPTO_clear_free;
  74 static OSSL_CRYPTO_realloc_fn *c_CRYPTO_realloc;
  75 static OSSL_CRYPTO_clear_realloc_fn *c_CRYPTO_clear_realloc;
  76 static OSSL_CRYPTO_secure_malloc_fn *c_CRYPTO_secure_malloc;
  77 static OSSL_CRYPTO_secure_zalloc_fn *c_CRYPTO_secure_zalloc;
  78 static OSSL_CRYPTO_secure_free_fn *c_CRYPTO_secure_free;
  79 static OSSL_CRYPTO_secure_clear_free_fn *c_CRYPTO_secure_clear_free;
  80 static OSSL_CRYPTO_secure_allocated_fn *c_CRYPTO_secure_allocated;
  81 static OSSL_BIO_vsnprintf_fn *c_BIO_vsnprintf;
  82
  83 typedef struct fips_global_st {
  84     const OSSL_CORE_HANDLE *handle;
  85 } FIPS_GLOBAL;
  86
  87 static void *fips_prov_ossl_ctx_new(OPENSSL_CTX *libctx)
  88 {
  89     FIPS_GLOBAL *fgbl = OPENSSL_zalloc(sizeof(*fgbl));
  90
  91     return fgbl;
  92 }
  93
  94 static void fips_prov_ossl_ctx_free(void *fgbl)
  95 {
  96     OPENSSL_free(fgbl);
  97 }
  98
  99 static const OPENSSL_CTX_METHOD fips_prov_ossl_ctx_method = {
 100     fips_prov_ossl_ctx_new,
 101     fips_prov_ossl_ctx_free,
 102 };
 103
 104
 105 /* Parameters we provide to the core */
 106 static const OSSL_PARAM fips_param_types[] = {
 107     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
 108     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
 109     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
 110     OSSL_PARAM_END
 111 };
 112
 113 /*
 114  * Parameters to retrieve from the core provider - required for self testing.
 115  * NOTE: inside core_get_params() these will be loaded from config items
 116  * stored inside prov->parameters (except for
 117  * OSSL_PROV_PARAM_CORE_MODULE_FILENAME).
 118  */
 119 static OSSL_PARAM core_params[] =
 120 {
 121     OSSL_PARAM_utf8_ptr(OSSL_PROV_PARAM_CORE_MODULE_FILENAME,
 122                         selftest_params.module_filename,
 123                         sizeof(selftest_params.module_filename)),
 124     OSSL_PARAM_utf8_ptr(OSSL_PROV_FIPS_PARAM_MODULE_MAC,
 125                         selftest_params.module_checksum_data,
 126                         sizeof(selftest_params.module_checksum_data)),
 127     OSSL_PARAM_utf8_ptr(OSSL_PROV_FIPS_PARAM_INSTALL_MAC,
 128                         selftest_params.indicator_checksum_data,
 129                         sizeof(selftest_params.indicator_checksum_data)),
 130     OSSL_PARAM_utf8_ptr(OSSL_PROV_FIPS_PARAM_INSTALL_STATUS,
 131                         selftest_params.indicator_data,
 132                         sizeof(selftest_params.indicator_data)),
 133     OSSL_PARAM_utf8_ptr(OSSL_PROV_FIPS_PARAM_INSTALL_VERSION,
 134                         selftest_params.indicator_version,
 135                         sizeof(selftest_params.indicator_version)),
 136     OSSL_PARAM_END
 137 };
 138
 139 /* TODO(3.0): To be removed */
 140 static int dummy_evp_call(OPENSSL_CTX *libctx)
 141 {
 142     EVP_MD_CTX *ctx = EVP_MD_CTX_new();
 143     EVP_MD *sha256 = EVP_MD_fetch(libctx, "SHA256", NULL);
 144     EVP_KDF *kdf = EVP_KDF_fetch(libctx, OSSL_KDF_NAME_PBKDF2, NULL);
 145     unsigned char dgst[SHA256_DIGEST_LENGTH];
 146     unsigned int dgstlen;
 147     int ret = 0;
 148     BN_CTX *bnctx = NULL;
 149     BIGNUM *a = NULL, *b = NULL;
 150     unsigned char randbuf[128];
 151     RAND_DRBG *drbg = OPENSSL_CTX_get0_public_drbg(libctx);
 152 #ifndef OPENSSL_NO_EC
 153     EC_KEY *key = NULL;
 154 #endif
 155
 156     static const char msg[] = "Hello World!";
 157     static const unsigned char exptd[] = {
 158         0x7f, 0x83, 0xb1, 0x65, 0x7f, 0xf1, 0xfc, 0x53, 0xb9, 0x2d, 0xc1, 0x81,
 159         0x48, 0xa1, 0xd6, 0x5d, 0xfc, 0x2d, 0x4b, 0x1f, 0xa3, 0xd6, 0x77, 0x28,
 160         0x4a, 0xdd, 0xd2, 0x00, 0x12, 0x6d, 0x90, 0x69
 161     };
 162
 163     if (ctx == NULL || sha256 == NULL || drbg == NULL || kdf == NULL)
 164         goto err;
 165
 166     if (!EVP_DigestInit_ex(ctx, sha256, NULL))
 167         goto err;
 168     if (!EVP_DigestUpdate(ctx, msg, sizeof(msg) - 1))
 169         goto err;
 170     if (!EVP_DigestFinal(ctx, dgst, &dgstlen))
 171         goto err;
 172     if (dgstlen != sizeof(exptd) || memcmp(dgst, exptd, sizeof(exptd)) != 0)
 173         goto err;
 174
 175     bnctx = BN_CTX_new_ex(libctx);
 176     if (bnctx == NULL)
 177         goto err;
 178     BN_CTX_start(bnctx);
 179     a = BN_CTX_get(bnctx);
 180     b = BN_CTX_get(bnctx);
 181     if (b == NULL)
 182         goto err;
 183     BN_zero(a);
 184     if (!BN_one(b)
 185         || !BN_add(a, a, b)
 186         || BN_cmp(a, b) != 0)
 187         goto err;
 188
 189     if (RAND_DRBG_bytes(drbg, randbuf, sizeof(randbuf)) <= 0)
 190         goto err;
 191
 192     if (!BN_rand_ex(a, 256, BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY, bnctx))
 193         goto err;
 194
 195 #ifndef OPENSSL_NO_EC
 196     /* Do some dummy EC calls */
 197     key = EC_KEY_new_by_curve_name_ex(libctx, NID_X9_62_prime256v1);
 198     if (key == NULL)
 199         goto err;
 200
 201     if (!EC_KEY_generate_key(key))
 202         goto err;
 203 #endif
 204
 205     ret = 1;
 206  err:
 207     BN_CTX_end(bnctx);
 208     BN_CTX_free(bnctx);
 209
 210     EVP_KDF_free(kdf);
 211     EVP_MD_CTX_free(ctx);
 212     EVP_MD_free(sha256);
 213
 214 #ifndef OPENSSL_NO_EC
 215     EC_KEY_free(key);
 216 #endif
 217     return ret;
 218 }
 219
 220 static const OSSL_PARAM *fips_gettable_params(void *provctx)
 221 {
 222     return fips_param_types;
 223 }
 224
 225 static int fips_get_params(void *provctx, OSSL_PARAM params[])
 226 {
 227     OSSL_PARAM *p;
 228
 229     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
 230     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL FIPS Provider"))
 231         return 0;
 232     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
 233     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
 234         return 0;
 235     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
 236     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
 237         return 0;
 238
 239     return 1;
 240 }
 241
 242 /* FIPS specific version of the function of the same name in provlib.c */
 243 const char *ossl_prov_util_nid_to_name(int nid)
 244 {
 245     /* We don't have OBJ_nid2n() in FIPS_MODULE so we have an explicit list */
 246
 247     switch (nid) {
 248     /* Digests */
 249     case NID_sha1:
 250         return "SHA1";
 251     case NID_sha224:
 252         return "SHA-224";
 253     case NID_sha256:
 254         return "SHA-256";
 255     case NID_sha384:
 256         return "SHA-384";
 257     case NID_sha512:
 258         return "SHA-512";
 259     case NID_sha512_224:
 260         return "SHA-512/224";
 261     case NID_sha512_256:
 262         return "SHA-512/256";
 263     case NID_sha3_224:
 264         return "SHA3-224";
 265     case NID_sha3_256:
 266         return "SHA3-256";
 267     case NID_sha3_384:
 268         return "SHA3-384";
 269     case NID_sha3_512:
 270         return "SHA3-512";
 271
 272     /* Ciphers */
 273     case NID_aes_256_ecb:
 274         return "AES-256-ECB";
 275     case NID_aes_192_ecb:
 276         return "AES-192-ECB";
 277     case NID_aes_128_ecb:
 278         return "AES-128-ECB";
 279     case NID_aes_256_cbc:
 280         return "AES-256-CBC";
 281     case NID_aes_192_cbc:
 282         return "AES-192-CBC";
 283     case NID_aes_128_cbc:
 284         return "AES-128-CBC";
 285     case NID_aes_256_ctr:
 286         return "AES-256-CTR";
 287     case NID_aes_192_ctr:
 288         return "AES-192-CTR";
 289     case NID_aes_128_ctr:
 290         return "AES-128-CTR";
 291     case NID_aes_256_xts:
 292         return "AES-256-XTS";
 293     case NID_aes_128_xts:
 294         return "AES-128-XTS";
 295     case NID_aes_256_gcm:
 296         return "AES-256-GCM";
 297     case NID_aes_192_gcm:
 298         return "AES-192-GCM";
 299     case NID_aes_128_gcm:
 300         return "AES-128-GCM";
 301     case NID_aes_256_ccm:
 302         return "AES-256-CCM";
 303     case NID_aes_192_ccm:
 304         return "AES-192-CCM";
 305     case NID_aes_128_ccm:
 306         return "AES-128-CCM";
 307     case NID_id_aes256_wrap:
 308         return "AES-256-WRAP";
 309     case NID_id_aes192_wrap:
 310         return "AES-192-WRAP";
 311     case NID_id_aes128_wrap:
 312         return "AES-128-WRAP";
 313     case NID_id_aes256_wrap_pad:
 314         return "AES-256-WRAP-PAD";
 315     case NID_id_aes192_wrap_pad:
 316         return "AES-192-WRAP-PAD";
 317     case NID_id_aes128_wrap_pad:
 318         return "AES-128-WRAP-PAD";
 319     case NID_des_ede3_ecb:
 320         return "DES-EDE3";
 321     case NID_des_ede3_cbc:
 322         return "DES-EDE3-CBC";
 323     case NID_aes_256_cbc_hmac_sha256:
 324         return "AES-256-CBC-HMAC-SHA256";
 325     case NID_aes_128_cbc_hmac_sha256:
 326         return "AES-128-CBC-HMAC-SHA256";
 327     case NID_aes_256_cbc_hmac_sha1:
 328         return "AES-256-CBC-HMAC-SHA1";
 329     case NID_aes_128_cbc_hmac_sha1:
 330         return "AES-128-CBC-HMAC-SHA1";
 331     default:
 332         break;
 333     }
 334
 335     return NULL;
 336 }
 337
 338 /*
 339  * For the algorithm names, we use the following formula for our primary
 340  * names:
 341  *
 342  *     ALGNAME[VERSION?][-SUBNAME[VERSION?]?][-SIZE?][-MODE?]
 343  *
 344  *     VERSION is only present if there are multiple versions of
 345  *     an alg (MD2, MD4, MD5).  It may be omitted if there is only
 346  *     one version (if a subsequent version is released in the future,
 347  *     we can always change the canonical name, and add the old name
 348  *     as an alias).
 349  *
 350  *     SUBNAME may be present where we are combining multiple
 351  *     algorithms together, e.g. MD5-SHA1.
 352  *
 353  *     SIZE is only present if multiple versions of an algorithm exist
 354  *     with different sizes (e.g. AES-128-CBC, AES-256-CBC)
 355  *
 356  *     MODE is only present where applicable.
 357  *
 358  * We add diverse other names where applicable, such as the names that
 359  * NIST uses, or that are used for ASN.1 OBJECT IDENTIFIERs, or names
 360  * we have used historically.
 361  */
 362 static const OSSL_ALGORITHM fips_digests[] = {
 363     /* Our primary name:NiST name[:our older names] */
 364     { "SHA1:SHA-1", "provider=fips,fips=yes", sha1_functions },
 365     { "SHA2-224:SHA-224:SHA224", "provider=fips,fips=yes", sha224_functions },
 366     { "SHA2-256:SHA-256:SHA256", "provider=fips,fips=yes", sha256_functions },
 367     { "SHA2-384:SHA-384:SHA384", "provider=fips,fips=yes", sha384_functions },
 368     { "SHA2-512:SHA-512:SHA512", "provider=fips,fips=yes", sha512_functions },
 369     { "SHA2-512/224:SHA-512/224:SHA512-224", "provider=fips,fips=yes",
 370       sha512_224_functions },
 371     { "SHA2-512/256:SHA-512/256:SHA512-256", "provider=fips,fips=yes",
 372       sha512_256_functions },
 373
 374     /* We agree with NIST here, so one name only */
 375     { "SHA3-224", "provider=fips,fips=yes", sha3_224_functions },
 376     { "SHA3-256", "provider=fips,fips=yes", sha3_256_functions },
 377     { "SHA3-384", "provider=fips,fips=yes", sha3_384_functions },
 378     { "SHA3-512", "provider=fips,fips=yes", sha3_512_functions },
 379
 380     /* Non-FIPS algorithm to support oneshot_hash in the Ed448 code */
 381     { "SHAKE-256:SHAKE256", "provider=fips,fips=no", shake_256_functions },
 382     { NULL, NULL, NULL }
 383 };
 384
 385 static const OSSL_ALGORITHM_CAPABLE fips_ciphers[] = {
 386     /* Our primary name[:ASN.1 OID name][:our older names] */
 387     ALG("AES-256-ECB", aes256ecb_functions),
 388     ALG("AES-192-ECB", aes192ecb_functions),
 389     ALG("AES-128-ECB", aes128ecb_functions),
 390     ALG("AES-256-CBC", aes256cbc_functions),
 391     ALG("AES-192-CBC", aes192cbc_functions),
 392     ALG("AES-128-CBC", aes128cbc_functions),
 393     ALG("AES-256-CFB", aes256cfb_functions),
 394     ALG("AES-192-CFB", aes192cfb_functions),
 395     ALG("AES-128-CFB", aes128cfb_functions),
 396     ALG("AES-256-CFB1", aes256cfb1_functions),
 397     ALG("AES-192-CFB1", aes192cfb1_functions),
 398     ALG("AES-128-CFB1", aes128cfb1_functions),
 399     ALG("AES-256-CFB8", aes256cfb8_functions),
 400     ALG("AES-192-CFB8", aes192cfb8_functions),
 401     ALG("AES-128-CFB8", aes128cfb8_functions),
 402     ALG("AES-256-CTR", aes256ctr_functions),
 403     ALG("AES-192-CTR", aes192ctr_functions),
 404     ALG("AES-128-CTR", aes128ctr_functions),
 405     ALG("AES-256-XTS", aes256xts_functions),
 406     ALG("AES-128-XTS", aes128xts_functions),
 407     ALG("AES-256-GCM:id-aes256-GCM", aes256gcm_functions),
 408     ALG("AES-192-GCM:id-aes192-GCM", aes192gcm_functions),
 409     ALG("AES-128-GCM:id-aes128-GCM", aes128gcm_functions),
 410     ALG("AES-256-CCM:id-aes256-CCM", aes256ccm_functions),
 411     ALG("AES-192-CCM:id-aes192-CCM", aes192ccm_functions),
 412     ALG("AES-128-CCM:id-aes128-CCM", aes128ccm_functions),
 413     ALG("AES-256-WRAP:id-aes256-wrap:AES256-WRAP", aes256wrap_functions),
 414     ALG("AES-192-WRAP:id-aes192-wrap:AES192-WRAP", aes192wrap_functions),
 415     ALG("AES-128-WRAP:id-aes128-wrap:AES128-WRAP", aes128wrap_functions),
 416     ALG("AES-256-WRAP-PAD:id-aes256-wrap-pad:AES256-WRAP-PAD",
 417         aes256wrappad_functions),
 418     ALG("AES-192-WRAP-PAD:id-aes192-wrap-pad:AES192-WRAP-PAD",
 419         aes192wrappad_functions),
 420     ALG("AES-128-WRAP-PAD:id-aes128-wrap-pad:AES128-WRAP-PAD",
 421         aes128wrappad_functions),
 422     ALGC("AES-128-CBC-HMAC-SHA1", aes128cbc_hmac_sha1_functions,
 423          cipher_capable_aes_cbc_hmac_sha1),
 424     ALGC("AES-256-CBC-HMAC-SHA1", aes256cbc_hmac_sha1_functions,
 425          cipher_capable_aes_cbc_hmac_sha1),
 426     ALGC("AES-128-CBC-HMAC-SHA256", aes128cbc_hmac_sha256_functions,
 427          cipher_capable_aes_cbc_hmac_sha256),
 428     ALGC("AES-256-CBC-HMAC-SHA256", aes256cbc_hmac_sha256_functions,
 429          cipher_capable_aes_cbc_hmac_sha256),
 430 #ifndef OPENSSL_NO_DES
 431     ALG("DES-EDE3-ECB:DES-EDE3", tdes_ede3_ecb_functions),
 432     ALG("DES-EDE3-CBC:DES3", tdes_ede3_cbc_functions),
 433 #endif  /* OPENSSL_NO_DES */
 434     { { NULL, NULL, NULL }, NULL }
 435 };
 436 static OSSL_ALGORITHM exported_fips_ciphers[OSSL_NELEM(fips_ciphers)];
 437
 438 static const OSSL_ALGORITHM fips_macs[] = {
 439     { "GMAC", "provider=fips,fips=yes", gmac_functions },
 440     { "HMAC", "provider=fips,fips=yes", hmac_functions },
 441     { NULL, NULL, NULL }
 442 };
 443
 444 static const OSSL_ALGORITHM fips_kdfs[] = {
 445     { "HKDF", "provider=fips,fips=yes", kdf_hkdf_functions },
 446     { "SSKDF", "provider=fips,fips=yes", kdf_sskdf_functions },
 447     { "PBKDF2", "provider=fips,fips=yes", kdf_pbkdf2_functions },
 448     { "TLS1-PRF", "provider=fips,fips=yes", kdf_tls1_prf_functions },
 449     { NULL, NULL, NULL }
 450 };
 451
 452 static const OSSL_ALGORITHM fips_keyexch[] = {
 453 #ifndef OPENSSL_NO_DH
 454     { "DH:dhKeyAgreement", "provider=fips,fips=yes", dh_keyexch_functions },
 455 #endif
 456 #ifndef OPENSSL_NO_EC
 457     { "ECDH", "provider=fips,fips=yes", ecdh_keyexch_functions },
 458     { "X25519", "provider=fips,fips=no", x25519_keyexch_functions },
 459     { "X448", "provider=fips,fips=no", x448_keyexch_functions },
 460 #endif
 461     { NULL, NULL, NULL }
 462 };
 463
 464 static const OSSL_ALGORITHM fips_signature[] = {
 465 #ifndef OPENSSL_NO_DSA
 466     { "DSA:dsaEncryption", "provider=fips,fips=yes", dsa_signature_functions },
 467 #endif
 468     { "RSA:rsaEncryption", "provider=fips,fips=yes", rsa_signature_functions },
 469 #ifndef OPENSSL_NO_EC
 470     { "ED25519", "provider=fips,fips=no", ed25519_signature_functions },
 471     { "ED448", "provider=fips,fips=no", ed448_signature_functions },
 472     { "ECDSA", "provider=fips,fips=yes", ecdsa_signature_functions },
 473 #endif
 474     { NULL, NULL, NULL }
 475 };
 476
 477 static const OSSL_ALGORITHM fips_asym_cipher[] = {
 478     { "RSA:rsaEncryption", "provider=fips,fips=yes", rsa_asym_cipher_functions },
 479     { NULL, NULL, NULL }
 480 };
 481
 482 static const OSSL_ALGORITHM fips_keymgmt[] = {
 483 #ifndef OPENSSL_NO_DH
 484     { "DH:dhKeyAgreement", "provider=fips,fips=yes", dh_keymgmt_functions },
 485 #endif
 486 #ifndef OPENSSL_NO_DSA
 487     { "DSA", "provider=fips,fips=yes", dsa_keymgmt_functions },
 488 #endif
 489     { "RSA:rsaEncryption", "provider=fips,fips=yes", rsa_keymgmt_functions },
 490     { "RSA-PSS:RSASSA-PSS", "provider=default", rsapss_keymgmt_functions },
 491 #ifndef OPENSSL_NO_EC
 492     { "EC:id-ecPublicKey", "provider=fips,fips=yes", ec_keymgmt_functions },
 493     { "X25519", "provider=fips,fips=no", x25519_keymgmt_functions },
 494     { "X448", "provider=fips,fips=no", x448_keymgmt_functions },
 495     { "ED25519", "provider=fips,fips=no", ed25519_keymgmt_functions },
 496     { "ED448", "provider=fips,fips=no", ed448_keymgmt_functions },
 497 #endif
 498     { NULL, NULL, NULL }
 499 };
 500
 501 static const OSSL_ALGORITHM *fips_query(void *provctx, int operation_id,
 502                                         int *no_cache)
 503 {
 504     *no_cache = 0;
 505     switch (operation_id) {
 506     case OSSL_OP_DIGEST:
 507         return fips_digests;
 508     case OSSL_OP_CIPHER:
 509         ossl_prov_cache_exported_algorithms(fips_ciphers, exported_fips_ciphers);
 510         return exported_fips_ciphers;
 511     case OSSL_OP_MAC:
 512         return fips_macs;
 513     case OSSL_OP_KDF:
 514         return fips_kdfs;
 515     case OSSL_OP_KEYMGMT:
 516         return fips_keymgmt;
 517     case OSSL_OP_KEYEXCH:
 518         return fips_keyexch;
 519     case OSSL_OP_SIGNATURE:
 520         return fips_signature;
 521     case OSSL_OP_ASYM_CIPHER:
 522         return fips_asym_cipher;
 523     }
 524     return NULL;
 525 }
 526
 527 static void fips_teardown(void *provctx)
 528 {
 529     OPENSSL_CTX_free(PROV_LIBRARY_CONTEXT_OF(provctx));
 530     PROV_CTX_free(provctx);
 531 }
 532
 533 static void fips_intern_teardown(void *provctx)
 534 {
 535     /*
 536      * We know that the library context is the same as for the outer provider,
 537      * so no need to destroy it here.
 538      */
 539     PROV_CTX_free(provctx);
 540 }
 541
 542 /* Functions we provide to the core */
 543 static const OSSL_DISPATCH fips_dispatch_table[] = {
 544     { OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))fips_teardown },
 545     { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))fips_gettable_params },
 546     { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))fips_get_params },
 547     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))fips_query },
 548     { 0, NULL }
 549 };
 550
 551 /* Functions we provide to ourself */
 552 static const OSSL_DISPATCH intern_dispatch_table[] = {
 553     { OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))fips_intern_teardown },
 554     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))fips_query },
 555     { 0, NULL }
 556 };
 557
 558
 559 int OSSL_provider_init(const OSSL_CORE_HANDLE *handle,
 560                        const OSSL_DISPATCH *in,
 561                        const OSSL_DISPATCH **out,
 562                        void **provctx)
 563 {
 564     FIPS_GLOBAL *fgbl;
 565     OPENSSL_CTX *libctx = NULL;
 566     OSSL_self_test_cb_fn *stcbfn = NULL;
 567     OSSL_core_get_library_context_fn *c_get_libctx = NULL;
 568
 569     for (; in->function_id != 0; in++) {
 570         switch (in->function_id) {
 571         case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT:
 572             c_get_libctx = OSSL_get_core_get_library_context(in);
 573             break;
 574         case OSSL_FUNC_CORE_GETTABLE_PARAMS:
 575             c_gettable_params = OSSL_get_core_gettable_params(in);
 576             break;
 577         case OSSL_FUNC_CORE_GET_PARAMS:
 578             c_get_params = OSSL_get_core_get_params(in);
 579             break;
 580         case OSSL_FUNC_CORE_THREAD_START:
 581             c_thread_start = OSSL_get_core_thread_start(in);
 582             break;
 583         case OSSL_FUNC_CORE_NEW_ERROR:
 584             c_new_error = OSSL_get_core_new_error(in);
 585             break;
 586         case OSSL_FUNC_CORE_SET_ERROR_DEBUG:
 587             c_set_error_debug = OSSL_get_core_set_error_debug(in);
 588             break;
 589         case OSSL_FUNC_CORE_VSET_ERROR:
 590             c_vset_error = OSSL_get_core_vset_error(in);
 591             break;
 592         case OSSL_FUNC_CORE_SET_ERROR_MARK:
 593             c_set_error_mark = OSSL_get_core_set_error_mark(in);
 594             break;
 595         case OSSL_FUNC_CORE_CLEAR_LAST_ERROR_MARK:
 596             c_clear_last_error_mark = OSSL_get_core_clear_last_error_mark(in);
 597             break;
 598         case OSSL_FUNC_CORE_POP_ERROR_TO_MARK:
 599             c_pop_error_to_mark = OSSL_get_core_pop_error_to_mark(in);
 600             break;
 601         case OSSL_FUNC_CRYPTO_MALLOC:
 602             c_CRYPTO_malloc = OSSL_get_CRYPTO_malloc(in);
 603             break;
 604         case OSSL_FUNC_CRYPTO_ZALLOC:
 605             c_CRYPTO_zalloc = OSSL_get_CRYPTO_zalloc(in);
 606             break;
 607         case OSSL_FUNC_CRYPTO_FREE:
 608             c_CRYPTO_free = OSSL_get_CRYPTO_free(in);
 609             break;
 610         case OSSL_FUNC_CRYPTO_CLEAR_FREE:
 611             c_CRYPTO_clear_free = OSSL_get_CRYPTO_clear_free(in);
 612             break;
 613         case OSSL_FUNC_CRYPTO_REALLOC:
 614             c_CRYPTO_realloc = OSSL_get_CRYPTO_realloc(in);
 615             break;
 616         case OSSL_FUNC_CRYPTO_CLEAR_REALLOC:
 617             c_CRYPTO_clear_realloc = OSSL_get_CRYPTO_clear_realloc(in);
 618             break;
 619         case OSSL_FUNC_CRYPTO_SECURE_MALLOC:
 620             c_CRYPTO_secure_malloc = OSSL_get_CRYPTO_secure_malloc(in);
 621             break;
 622         case OSSL_FUNC_CRYPTO_SECURE_ZALLOC:
 623             c_CRYPTO_secure_zalloc = OSSL_get_CRYPTO_secure_zalloc(in);
 624             break;
 625         case OSSL_FUNC_CRYPTO_SECURE_FREE:
 626             c_CRYPTO_secure_free = OSSL_get_CRYPTO_secure_free(in);
 627             break;
 628         case OSSL_FUNC_CRYPTO_SECURE_CLEAR_FREE:
 629             c_CRYPTO_secure_clear_free = OSSL_get_CRYPTO_secure_clear_free(in);
 630             break;
 631         case OSSL_FUNC_CRYPTO_SECURE_ALLOCATED:
 632             c_CRYPTO_secure_allocated = OSSL_get_CRYPTO_secure_allocated(in);
 633             break;
 634         case OSSL_FUNC_BIO_NEW_FILE:
 635             selftest_params.bio_new_file_cb = OSSL_get_BIO_new_file(in);
 636             break;
 637         case OSSL_FUNC_BIO_NEW_MEMBUF:
 638             selftest_params.bio_new_buffer_cb = OSSL_get_BIO_new_membuf(in);
 639             break;
 640         case OSSL_FUNC_BIO_READ_EX:
 641             selftest_params.bio_read_ex_cb = OSSL_get_BIO_read_ex(in);
 642             break;
 643         case OSSL_FUNC_BIO_FREE:
 644             selftest_params.bio_free_cb = OSSL_get_BIO_free(in);
 645             break;
 646         case OSSL_FUNC_BIO_VSNPRINTF:
 647             c_BIO_vsnprintf = OSSL_get_BIO_vsnprintf(in);
 648             break;
 649         case OSSL_FUNC_SELF_TEST_CB: {
 650             stcbfn = OSSL_get_self_test_cb(in);
 651             break;
 652         }
 653         default:
 654             /* Just ignore anything we don't understand */
 655             break;
 656         }
 657     }
 658
 659     if (stcbfn != NULL && c_get_libctx != NULL) {
 660         stcbfn(c_get_libctx(handle), &selftest_params.cb,
 661                &selftest_params.cb_arg);
 662     }
 663     else {
 664         selftest_params.cb = NULL;
 665         selftest_params.cb_arg = NULL;
 666     }
 667
 668     if (!c_get_params(handle, core_params))
 669         return 0;
 670
 671     /*  Create a context. */
 672     if ((*provctx = PROV_CTX_new()) == NULL
 673         || (libctx = OPENSSL_CTX_new()) == NULL) {
 674         /*
 675          * We free libctx separately here and only here because it hasn't
 676          * been attached to *provctx.  All other error paths below rely
 677          * solely on fips_teardown.
 678          */
 679         OPENSSL_CTX_free(libctx);
 680         goto err;
 681     }
 682     PROV_CTX_set0_library_context(*provctx, libctx);
 683     PROV_CTX_set0_handle(*provctx, handle);
 684
 685     if ((fgbl = openssl_ctx_get_data(libctx, OPENSSL_CTX_FIPS_PROV_INDEX,
 686                                      &fips_prov_ossl_ctx_method)) == NULL)
 687         goto err;
 688
 689     fgbl->handle = handle;
 690
 691     selftest_params.libctx = libctx;
 692     if (!SELF_TEST_post(&selftest_params, 0))
 693         goto err;
 694
 695     /*
 696      * TODO(3.0): Remove me. This is just a dummy call to demonstrate making
 697      * EVP calls from within the FIPS module.
 698      */
 699     if (!dummy_evp_call(libctx))
 700         goto err;
 701
 702     *out = fips_dispatch_table;
 703
 704     return 1;
 705  err:
 706     fips_teardown(*provctx);
 707     *provctx = NULL;
 708     return 0;
 709 }
 710
 711 /*
 712  * The internal init function used when the FIPS module uses EVP to call
 713  * another algorithm also in the FIPS module. This is a recursive call that has
 714  * been made from within the FIPS module itself. To make this work, we populate
 715  * the provider context of this inner instance with the same library context
 716  * that was used in the EVP call that initiated this recursive call.
 717  */
 718 OSSL_provider_init_fn fips_intern_provider_init;
 719 int fips_intern_provider_init(const OSSL_CORE_HANDLE *handle,
 720                               const OSSL_DISPATCH *in,
 721                               const OSSL_DISPATCH **out,
 722                               void **provctx)
 723 {
 724     OSSL_core_get_library_context_fn *c_get_libctx = NULL;
 725
 726     for (; in->function_id != 0; in++) {
 727         switch (in->function_id) {
 728         case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT:
 729             c_get_libctx = OSSL_get_core_get_library_context(in);
 730             break;
 731         default:
 732             break;
 733         }
 734     }
 735
 736     if (c_get_libctx == NULL)
 737         return 0;
 738
 739     if ((*provctx = PROV_CTX_new()) == NULL)
 740         return 0;
 741     /*
 742      * Using the parent library context only works because we are a built-in
 743      * internal provider. This is not something that most providers would be
 744      * able to do.
 745      */
 746     PROV_CTX_set0_library_context(*provctx, (OPENSSL_CTX *)c_get_libctx(handle));
 747     PROV_CTX_set0_handle(*provctx, handle);
 748
 749     *out = intern_dispatch_table;
 750     return 1;
 751 }
 752
 753 void ERR_new(void)
 754 {
 755     c_new_error(NULL);
 756 }
 757
 758 void ERR_set_debug(const char *file, int line, const char *func)
 759 {
 760     c_set_error_debug(NULL, file, line, func);
 761 }
 762
 763 void ERR_set_error(int lib, int reason, const char *fmt, ...)
 764 {
 765     va_list args;
 766
 767     va_start(args, fmt);
 768     c_vset_error(NULL, ERR_PACK(lib, 0, reason), fmt, args);
 769     va_end(args);
 770 }
 771
 772 void ERR_vset_error(int lib, int reason, const char *fmt, va_list args)
 773 {
 774     c_vset_error(NULL, ERR_PACK(lib, 0, reason), fmt, args);
 775 }
 776
 777 int ERR_set_mark(void)
 778 {
 779     return c_set_error_mark(NULL);
 780 }
 781
 782 int ERR_clear_last_mark(void)
 783 {
 784     return c_clear_last_error_mark(NULL);
 785 }
 786
 787 int ERR_pop_to_mark(void)
 788 {
 789     return c_pop_error_to_mark(NULL);
 790 }
 791
 792 /*
 793  * This must take a library context, since it's called from the depths
 794  * of crypto/initthread.c code, where it's (correctly) assumed that the
 795  * passed caller argument is an OPENSSL_CTX pointer (since the same routine
 796  * is also called from other parts of libcrypto, which all pass around a
 797  * OPENSSL_CTX pointer)
 798  */
 799 const OSSL_CORE_HANDLE *FIPS_get_core_handle(OPENSSL_CTX *libctx)
 800 {
 801     FIPS_GLOBAL *fgbl = openssl_ctx_get_data(libctx,
 802                                              OPENSSL_CTX_FIPS_PROV_INDEX,
 803                                              &fips_prov_ossl_ctx_method);
 804
 805     if (fgbl == NULL)
 806         return NULL;
 807
 808     return fgbl->handle;
 809 }
 810
 811 void *CRYPTO_malloc(size_t num, const char *file, int line)
 812 {
 813     return c_CRYPTO_malloc(num, file, line);
 814 }
 815
 816 void *CRYPTO_zalloc(size_t num, const char *file, int line)
 817 {
 818     return c_CRYPTO_zalloc(num, file, line);
 819 }
 820
 821 void CRYPTO_free(void *ptr, const char *file, int line)
 822 {
 823     c_CRYPTO_free(ptr, file, line);
 824 }
 825
 826 void CRYPTO_clear_free(void *ptr, size_t num, const char *file, int line)
 827 {
 828     c_CRYPTO_clear_free(ptr, num, file, line);
 829 }
 830
 831 void *CRYPTO_realloc(void *addr, size_t num, const char *file, int line)
 832 {
 833     return c_CRYPTO_realloc(addr, num, file, line);
 834 }
 835
 836 void *CRYPTO_clear_realloc(void *addr, size_t old_num, size_t num,
 837                            const char *file, int line)
 838 {
 839     return c_CRYPTO_clear_realloc(addr, old_num, num, file, line);
 840 }
 841
 842 void *CRYPTO_secure_malloc(size_t num, const char *file, int line)
 843 {
 844     return c_CRYPTO_secure_malloc(num, file, line);
 845 }
 846
 847 void *CRYPTO_secure_zalloc(size_t num, const char *file, int line)
 848 {
 849     return c_CRYPTO_secure_zalloc(num, file, line);
 850 }
 851
 852 void CRYPTO_secure_free(void *ptr, const char *file, int line)
 853 {
 854     c_CRYPTO_secure_free(ptr, file, line);
 855 }
 856
 857 void CRYPTO_secure_clear_free(void *ptr, size_t num, const char *file, int line)
 858 {
 859     c_CRYPTO_secure_clear_free(ptr, num, file, line);
 860 }
 861
 862 int CRYPTO_secure_allocated(const void *ptr)
 863 {
 864     return c_CRYPTO_secure_allocated(ptr);
 865 }
 866
 867 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
 868 {
 869     va_list args;
 870     int ret;
 871
 872     va_start(args, format);
 873     ret = c_BIO_vsnprintf(buf, n, format, args);
 874     va_end(args);
 875     return ret;
 876 }