providers/fips/fipsprov.c

   1 /*
   2  * Copyright 2019-2022 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 <assert.h>
  11 #include <openssl/core_dispatch.h>
  12 #include <openssl/core_names.h>
  13 #include <openssl/params.h>
  14 #include <openssl/fips_names.h>
  15 #include <openssl/rand.h> /* RAND_get0_public() */
  16 #include <openssl/proverr.h>
  17 #include "internal/cryptlib.h"
  18 #include "prov/implementations.h"
  19 #include "prov/names.h"
  20 #include "prov/provider_ctx.h"
  21 #include "prov/providercommon.h"
  22 #include "prov/provider_util.h"
  23 #include "prov/seeding.h"
  24 #include "self_test.h"
  25 #include "crypto/context.h"
  26 #include "internal/core.h"
  27
  28 static const char FIPS_DEFAULT_PROPERTIES[] = "provider=fips,fips=yes";
  29 static const char FIPS_UNAPPROVED_PROPERTIES[] = "provider=fips,fips=no";
  30
  31 /*
  32  * Forward declarations to ensure that interface functions are correctly
  33  * defined.
  34  */
  35 static OSSL_FUNC_provider_teardown_fn fips_teardown;
  36 static OSSL_FUNC_provider_gettable_params_fn fips_gettable_params;
  37 static OSSL_FUNC_provider_get_params_fn fips_get_params;
  38 static OSSL_FUNC_provider_query_operation_fn fips_query;
  39
  40 #define ALGC(NAMES, FUNC, CHECK)                \
  41     { { NAMES, FIPS_DEFAULT_PROPERTIES, FUNC }, CHECK }
  42 #define UNAPPROVED_ALGC(NAMES, FUNC, CHECK)     \
  43     { { NAMES, FIPS_UNAPPROVED_PROPERTIES, FUNC }, CHECK }
  44 #define ALG(NAMES, FUNC) ALGC(NAMES, FUNC, NULL)
  45 #define UNAPPROVED_ALG(NAMES, FUNC) UNAPPROVED_ALGC(NAMES, FUNC, NULL)
  46
  47 extern OSSL_FUNC_core_thread_start_fn *c_thread_start;
  48 int FIPS_security_check_enabled(OSSL_LIB_CTX *libctx);
  49
  50 /*
  51  * Should these function pointers be stored in the provider side provctx? Could
  52  * they ever be different from one init to the next? We assume not for now.
  53  */
  54
  55 /* Functions provided by the core */
  56 static OSSL_FUNC_core_gettable_params_fn *c_gettable_params;
  57 static OSSL_FUNC_core_get_params_fn *c_get_params;
  58 OSSL_FUNC_core_thread_start_fn *c_thread_start;
  59 static OSSL_FUNC_core_new_error_fn *c_new_error;
  60 static OSSL_FUNC_core_set_error_debug_fn *c_set_error_debug;
  61 static OSSL_FUNC_core_vset_error_fn *c_vset_error;
  62 static OSSL_FUNC_core_set_error_mark_fn *c_set_error_mark;
  63 static OSSL_FUNC_core_clear_last_error_mark_fn *c_clear_last_error_mark;
  64 static OSSL_FUNC_core_pop_error_to_mark_fn *c_pop_error_to_mark;
  65 static OSSL_FUNC_CRYPTO_malloc_fn *c_CRYPTO_malloc;
  66 static OSSL_FUNC_CRYPTO_zalloc_fn *c_CRYPTO_zalloc;
  67 static OSSL_FUNC_CRYPTO_free_fn *c_CRYPTO_free;
  68 static OSSL_FUNC_CRYPTO_clear_free_fn *c_CRYPTO_clear_free;
  69 static OSSL_FUNC_CRYPTO_realloc_fn *c_CRYPTO_realloc;
  70 static OSSL_FUNC_CRYPTO_clear_realloc_fn *c_CRYPTO_clear_realloc;
  71 static OSSL_FUNC_CRYPTO_secure_malloc_fn *c_CRYPTO_secure_malloc;
  72 static OSSL_FUNC_CRYPTO_secure_zalloc_fn *c_CRYPTO_secure_zalloc;
  73 static OSSL_FUNC_CRYPTO_secure_free_fn *c_CRYPTO_secure_free;
  74 static OSSL_FUNC_CRYPTO_secure_clear_free_fn *c_CRYPTO_secure_clear_free;
  75 static OSSL_FUNC_CRYPTO_secure_allocated_fn *c_CRYPTO_secure_allocated;
  76 static OSSL_FUNC_BIO_vsnprintf_fn *c_BIO_vsnprintf;
  77 static OSSL_FUNC_self_test_cb_fn *c_stcbfn = NULL;
  78 static OSSL_FUNC_core_get_libctx_fn *c_get_libctx = NULL;
  79
  80 typedef struct fips_global_st {
  81     const OSSL_CORE_HANDLE *handle;
  82     SELF_TEST_POST_PARAMS selftest_params;
  83     int fips_security_checks;
  84     const char *fips_security_check_option;
  85 } FIPS_GLOBAL;
  86
  87 void *ossl_fips_prov_ossl_ctx_new(OSSL_LIB_CTX *libctx)
  88 {
  89     FIPS_GLOBAL *fgbl = OPENSSL_zalloc(sizeof(*fgbl));
  90
  91     if (fgbl == NULL)
  92         return NULL;
  93     fgbl->fips_security_checks = 1;
  94     fgbl->fips_security_check_option = "1";
  95
  96     return fgbl;
  97 }
  98
  99 void ossl_fips_prov_ossl_ctx_free(void *fgbl)
 100 {
 101     OPENSSL_free(fgbl);
 102 }
 103
 104 /* Parameters we provide to the core */
 105 static const OSSL_PARAM fips_param_types[] = {
 106     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
 107     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
 108     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
 109     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_STATUS, OSSL_PARAM_INTEGER, NULL, 0),
 110     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_SECURITY_CHECKS, OSSL_PARAM_INTEGER, NULL, 0),
 111     OSSL_PARAM_END
 112 };
 113
 114 static int fips_get_params_from_core(FIPS_GLOBAL *fgbl)
 115 {
 116     /*
 117     * Parameters to retrieve from the core provider - required for self testing.
 118     * NOTE: inside core_get_params() these will be loaded from config items
 119     * stored inside prov->parameters (except for
 120     * OSSL_PROV_PARAM_CORE_MODULE_FILENAME).
 121     * OSSL_PROV_FIPS_PARAM_SECURITY_CHECKS is not a self test parameter.
 122     */
 123     OSSL_PARAM core_params[8], *p = core_params;
 124
 125     *p++ = OSSL_PARAM_construct_utf8_ptr(
 126             OSSL_PROV_PARAM_CORE_MODULE_FILENAME,
 127             (char **)&fgbl->selftest_params.module_filename,
 128             sizeof(fgbl->selftest_params.module_filename));
 129     *p++ = OSSL_PARAM_construct_utf8_ptr(
 130             OSSL_PROV_FIPS_PARAM_MODULE_MAC,
 131             (char **)&fgbl->selftest_params.module_checksum_data,
 132             sizeof(fgbl->selftest_params.module_checksum_data));
 133     *p++ = OSSL_PARAM_construct_utf8_ptr(
 134             OSSL_PROV_FIPS_PARAM_INSTALL_MAC,
 135             (char **)&fgbl->selftest_params.indicator_checksum_data,
 136             sizeof(fgbl->selftest_params.indicator_checksum_data));
 137     *p++ = OSSL_PARAM_construct_utf8_ptr(
 138             OSSL_PROV_FIPS_PARAM_INSTALL_STATUS,
 139             (char **)&fgbl->selftest_params.indicator_data,
 140             sizeof(fgbl->selftest_params.indicator_data));
 141     *p++ = OSSL_PARAM_construct_utf8_ptr(
 142             OSSL_PROV_FIPS_PARAM_INSTALL_VERSION,
 143             (char **)&fgbl->selftest_params.indicator_version,
 144             sizeof(fgbl->selftest_params.indicator_version));
 145     *p++ = OSSL_PARAM_construct_utf8_ptr(
 146             OSSL_PROV_FIPS_PARAM_CONDITIONAL_ERRORS,
 147             (char **)&fgbl->selftest_params.conditional_error_check,
 148             sizeof(fgbl->selftest_params.conditional_error_check));
 149     *p++ = OSSL_PARAM_construct_utf8_ptr(
 150             OSSL_PROV_FIPS_PARAM_SECURITY_CHECKS,
 151             (char **)&fgbl->fips_security_check_option,
 152             sizeof(fgbl->fips_security_check_option));
 153     *p = OSSL_PARAM_construct_end();
 154
 155     if (!c_get_params(fgbl->handle, core_params)) {
 156         ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
 157         return 0;
 158     }
 159
 160     return 1;
 161 }
 162
 163 static const OSSL_PARAM *fips_gettable_params(void *provctx)
 164 {
 165     return fips_param_types;
 166 }
 167
 168 static int fips_get_params(void *provctx, OSSL_PARAM params[])
 169 {
 170     OSSL_PARAM *p;
 171     FIPS_GLOBAL *fgbl = ossl_lib_ctx_get_data(ossl_prov_ctx_get0_libctx(provctx),
 172                                               OSSL_LIB_CTX_FIPS_PROV_INDEX);
 173
 174     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
 175     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL FIPS Provider"))
 176         return 0;
 177     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
 178     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
 179         return 0;
 180     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
 181     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
 182         return 0;
 183     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
 184     if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
 185         return 0;
 186     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_SECURITY_CHECKS);
 187     if (p != NULL && !OSSL_PARAM_set_int(p, fgbl->fips_security_checks))
 188         return 0;
 189     return 1;
 190 }
 191
 192 static void set_self_test_cb(FIPS_GLOBAL *fgbl)
 193 {
 194     const OSSL_CORE_HANDLE *handle =
 195         FIPS_get_core_handle(fgbl->selftest_params.libctx);
 196
 197     if (c_stcbfn != NULL && c_get_libctx != NULL) {
 198         c_stcbfn(c_get_libctx(handle), &fgbl->selftest_params.cb,
 199                               &fgbl->selftest_params.cb_arg);
 200     } else {
 201         fgbl->selftest_params.cb = NULL;
 202         fgbl->selftest_params.cb_arg = NULL;
 203     }
 204 }
 205
 206 static int fips_self_test(void *provctx)
 207 {
 208     FIPS_GLOBAL *fgbl = ossl_lib_ctx_get_data(ossl_prov_ctx_get0_libctx(provctx),
 209                                               OSSL_LIB_CTX_FIPS_PROV_INDEX);
 210
 211     set_self_test_cb(fgbl);
 212     return SELF_TEST_post(&fgbl->selftest_params, 1) ? 1 : 0;
 213 }
 214
 215 /*
 216  * For the algorithm names, we use the following formula for our primary
 217  * names:
 218  *
 219  *     ALGNAME[VERSION?][-SUBNAME[VERSION?]?][-SIZE?][-MODE?]
 220  *
 221  *     VERSION is only present if there are multiple versions of
 222  *     an alg (MD2, MD4, MD5).  It may be omitted if there is only
 223  *     one version (if a subsequent version is released in the future,
 224  *     we can always change the canonical name, and add the old name
 225  *     as an alias).
 226  *
 227  *     SUBNAME may be present where we are combining multiple
 228  *     algorithms together, e.g. MD5-SHA1.
 229  *
 230  *     SIZE is only present if multiple versions of an algorithm exist
 231  *     with different sizes (e.g. AES-128-CBC, AES-256-CBC)
 232  *
 233  *     MODE is only present where applicable.
 234  *
 235  * We add diverse other names where applicable, such as the names that
 236  * NIST uses, or that are used for ASN.1 OBJECT IDENTIFIERs, or names
 237  * we have used historically.
 238  */
 239 static const OSSL_ALGORITHM fips_digests[] = {
 240     /* Our primary name:NiST name[:our older names] */
 241     { PROV_NAMES_SHA1, FIPS_DEFAULT_PROPERTIES, ossl_sha1_functions },
 242     { PROV_NAMES_SHA2_224, FIPS_DEFAULT_PROPERTIES, ossl_sha224_functions },
 243     { PROV_NAMES_SHA2_256, FIPS_DEFAULT_PROPERTIES, ossl_sha256_functions },
 244     { PROV_NAMES_SHA2_384, FIPS_DEFAULT_PROPERTIES, ossl_sha384_functions },
 245     { PROV_NAMES_SHA2_512, FIPS_DEFAULT_PROPERTIES, ossl_sha512_functions },
 246     { PROV_NAMES_SHA2_512_224, FIPS_DEFAULT_PROPERTIES,
 247       ossl_sha512_224_functions },
 248     { PROV_NAMES_SHA2_512_256, FIPS_DEFAULT_PROPERTIES,
 249       ossl_sha512_256_functions },
 250
 251     /* We agree with NIST here, so one name only */
 252     { PROV_NAMES_SHA3_224, FIPS_DEFAULT_PROPERTIES, ossl_sha3_224_functions },
 253     { PROV_NAMES_SHA3_256, FIPS_DEFAULT_PROPERTIES, ossl_sha3_256_functions },
 254     { PROV_NAMES_SHA3_384, FIPS_DEFAULT_PROPERTIES, ossl_sha3_384_functions },
 255     { PROV_NAMES_SHA3_512, FIPS_DEFAULT_PROPERTIES, ossl_sha3_512_functions },
 256
 257     { PROV_NAMES_SHAKE_128, FIPS_DEFAULT_PROPERTIES, ossl_shake_128_functions },
 258     { PROV_NAMES_SHAKE_256, FIPS_DEFAULT_PROPERTIES, ossl_shake_256_functions },
 259
 260     /*
 261      * KECCAK-KMAC-128 and KECCAK-KMAC-256 as hashes are mostly useful for
 262      * KMAC128 and KMAC256.
 263      */
 264     { PROV_NAMES_KECCAK_KMAC_128, FIPS_DEFAULT_PROPERTIES,
 265       ossl_keccak_kmac_128_functions },
 266     { PROV_NAMES_KECCAK_KMAC_256, FIPS_DEFAULT_PROPERTIES,
 267       ossl_keccak_kmac_256_functions },
 268     { NULL, NULL, NULL }
 269 };
 270
 271 static const OSSL_ALGORITHM_CAPABLE fips_ciphers[] = {
 272     /* Our primary name[:ASN.1 OID name][:our older names] */
 273     ALG(PROV_NAMES_AES_256_ECB, ossl_aes256ecb_functions),
 274     ALG(PROV_NAMES_AES_192_ECB, ossl_aes192ecb_functions),
 275     ALG(PROV_NAMES_AES_128_ECB, ossl_aes128ecb_functions),
 276     ALG(PROV_NAMES_AES_256_CBC, ossl_aes256cbc_functions),
 277     ALG(PROV_NAMES_AES_192_CBC, ossl_aes192cbc_functions),
 278     ALG(PROV_NAMES_AES_128_CBC, ossl_aes128cbc_functions),
 279     ALG(PROV_NAMES_AES_256_CBC_CTS, ossl_aes256cbc_cts_functions),
 280     ALG(PROV_NAMES_AES_192_CBC_CTS, ossl_aes192cbc_cts_functions),
 281     ALG(PROV_NAMES_AES_128_CBC_CTS, ossl_aes128cbc_cts_functions),
 282     ALG(PROV_NAMES_AES_256_OFB, ossl_aes256ofb_functions),
 283     ALG(PROV_NAMES_AES_192_OFB, ossl_aes192ofb_functions),
 284     ALG(PROV_NAMES_AES_128_OFB, ossl_aes128ofb_functions),
 285     ALG(PROV_NAMES_AES_256_CFB, ossl_aes256cfb_functions),
 286     ALG(PROV_NAMES_AES_192_CFB, ossl_aes192cfb_functions),
 287     ALG(PROV_NAMES_AES_128_CFB, ossl_aes128cfb_functions),
 288     ALG(PROV_NAMES_AES_256_CFB1, ossl_aes256cfb1_functions),
 289     ALG(PROV_NAMES_AES_192_CFB1, ossl_aes192cfb1_functions),
 290     ALG(PROV_NAMES_AES_128_CFB1, ossl_aes128cfb1_functions),
 291     ALG(PROV_NAMES_AES_256_CFB8, ossl_aes256cfb8_functions),
 292     ALG(PROV_NAMES_AES_192_CFB8, ossl_aes192cfb8_functions),
 293     ALG(PROV_NAMES_AES_128_CFB8, ossl_aes128cfb8_functions),
 294     ALG(PROV_NAMES_AES_256_CTR, ossl_aes256ctr_functions),
 295     ALG(PROV_NAMES_AES_192_CTR, ossl_aes192ctr_functions),
 296     ALG(PROV_NAMES_AES_128_CTR, ossl_aes128ctr_functions),
 297     ALG(PROV_NAMES_AES_256_XTS, ossl_aes256xts_functions),
 298     ALG(PROV_NAMES_AES_128_XTS, ossl_aes128xts_functions),
 299     ALG(PROV_NAMES_AES_256_GCM, ossl_aes256gcm_functions),
 300     ALG(PROV_NAMES_AES_192_GCM, ossl_aes192gcm_functions),
 301     ALG(PROV_NAMES_AES_128_GCM, ossl_aes128gcm_functions),
 302     ALG(PROV_NAMES_AES_256_CCM, ossl_aes256ccm_functions),
 303     ALG(PROV_NAMES_AES_192_CCM, ossl_aes192ccm_functions),
 304     ALG(PROV_NAMES_AES_128_CCM, ossl_aes128ccm_functions),
 305     ALG(PROV_NAMES_AES_256_WRAP, ossl_aes256wrap_functions),
 306     ALG(PROV_NAMES_AES_192_WRAP, ossl_aes192wrap_functions),
 307     ALG(PROV_NAMES_AES_128_WRAP, ossl_aes128wrap_functions),
 308     ALG(PROV_NAMES_AES_256_WRAP_PAD, ossl_aes256wrappad_functions),
 309     ALG(PROV_NAMES_AES_192_WRAP_PAD, ossl_aes192wrappad_functions),
 310     ALG(PROV_NAMES_AES_128_WRAP_PAD, ossl_aes128wrappad_functions),
 311     ALG(PROV_NAMES_AES_256_WRAP_INV, ossl_aes256wrapinv_functions),
 312     ALG(PROV_NAMES_AES_192_WRAP_INV, ossl_aes192wrapinv_functions),
 313     ALG(PROV_NAMES_AES_128_WRAP_INV, ossl_aes128wrapinv_functions),
 314     ALG(PROV_NAMES_AES_256_WRAP_PAD_INV, ossl_aes256wrappadinv_functions),
 315     ALG(PROV_NAMES_AES_192_WRAP_PAD_INV, ossl_aes192wrappadinv_functions),
 316     ALG(PROV_NAMES_AES_128_WRAP_PAD_INV, ossl_aes128wrappadinv_functions),
 317     ALGC(PROV_NAMES_AES_128_CBC_HMAC_SHA1, ossl_aes128cbc_hmac_sha1_functions,
 318          ossl_cipher_capable_aes_cbc_hmac_sha1),
 319     ALGC(PROV_NAMES_AES_256_CBC_HMAC_SHA1, ossl_aes256cbc_hmac_sha1_functions,
 320          ossl_cipher_capable_aes_cbc_hmac_sha1),
 321     ALGC(PROV_NAMES_AES_128_CBC_HMAC_SHA256, ossl_aes128cbc_hmac_sha256_functions,
 322          ossl_cipher_capable_aes_cbc_hmac_sha256),
 323     ALGC(PROV_NAMES_AES_256_CBC_HMAC_SHA256, ossl_aes256cbc_hmac_sha256_functions,
 324          ossl_cipher_capable_aes_cbc_hmac_sha256),
 325 #ifndef OPENSSL_NO_DES
 326     UNAPPROVED_ALG(PROV_NAMES_DES_EDE3_ECB, ossl_tdes_ede3_ecb_functions),
 327     UNAPPROVED_ALG(PROV_NAMES_DES_EDE3_CBC, ossl_tdes_ede3_cbc_functions),
 328 #endif  /* OPENSSL_NO_DES */
 329     { { NULL, NULL, NULL }, NULL }
 330 };
 331 static OSSL_ALGORITHM exported_fips_ciphers[OSSL_NELEM(fips_ciphers)];
 332
 333 static const OSSL_ALGORITHM fips_macs[] = {
 334 #ifndef OPENSSL_NO_CMAC
 335     { PROV_NAMES_CMAC, FIPS_DEFAULT_PROPERTIES, ossl_cmac_functions },
 336 #endif
 337     { PROV_NAMES_GMAC, FIPS_DEFAULT_PROPERTIES, ossl_gmac_functions },
 338     { PROV_NAMES_HMAC, FIPS_DEFAULT_PROPERTIES, ossl_hmac_functions },
 339     { PROV_NAMES_KMAC_128, FIPS_DEFAULT_PROPERTIES, ossl_kmac128_functions },
 340     { PROV_NAMES_KMAC_256, FIPS_DEFAULT_PROPERTIES, ossl_kmac256_functions },
 341     { NULL, NULL, NULL }
 342 };
 343
 344 static const OSSL_ALGORITHM fips_kdfs[] = {
 345     { PROV_NAMES_HKDF, FIPS_DEFAULT_PROPERTIES, ossl_kdf_hkdf_functions },
 346     { PROV_NAMES_TLS1_3_KDF, FIPS_DEFAULT_PROPERTIES,
 347       ossl_kdf_tls1_3_kdf_functions },
 348     { PROV_NAMES_SSKDF, FIPS_DEFAULT_PROPERTIES, ossl_kdf_sskdf_functions },
 349     { PROV_NAMES_PBKDF2, FIPS_DEFAULT_PROPERTIES, ossl_kdf_pbkdf2_functions },
 350     { PROV_NAMES_SSHKDF, FIPS_DEFAULT_PROPERTIES, ossl_kdf_sshkdf_functions },
 351     { PROV_NAMES_X963KDF, FIPS_DEFAULT_PROPERTIES,
 352       ossl_kdf_x963_kdf_functions },
 353     { PROV_NAMES_X942KDF_ASN1, FIPS_DEFAULT_PROPERTIES,
 354       ossl_kdf_x942_kdf_functions },
 355     { PROV_NAMES_TLS1_PRF, FIPS_DEFAULT_PROPERTIES,
 356       ossl_kdf_tls1_prf_functions },
 357     { PROV_NAMES_KBKDF, FIPS_DEFAULT_PROPERTIES, ossl_kdf_kbkdf_functions },
 358     { NULL, NULL, NULL }
 359 };
 360
 361 static const OSSL_ALGORITHM fips_rands[] = {
 362     { PROV_NAMES_CTR_DRBG, FIPS_DEFAULT_PROPERTIES, ossl_drbg_ctr_functions },
 363     { PROV_NAMES_HASH_DRBG, FIPS_DEFAULT_PROPERTIES, ossl_drbg_hash_functions },
 364     { PROV_NAMES_HMAC_DRBG, FIPS_DEFAULT_PROPERTIES, ossl_drbg_ossl_hmac_functions },
 365     { PROV_NAMES_TEST_RAND, FIPS_UNAPPROVED_PROPERTIES, ossl_test_rng_functions },
 366     { NULL, NULL, NULL }
 367 };
 368
 369 static const OSSL_ALGORITHM fips_keyexch[] = {
 370 #ifndef OPENSSL_NO_DH
 371     { PROV_NAMES_DH, FIPS_DEFAULT_PROPERTIES, ossl_dh_keyexch_functions },
 372 #endif
 373 #ifndef OPENSSL_NO_EC
 374     { PROV_NAMES_ECDH, FIPS_DEFAULT_PROPERTIES, ossl_ecdh_keyexch_functions },
 375     { PROV_NAMES_X25519, FIPS_DEFAULT_PROPERTIES, ossl_x25519_keyexch_functions },
 376     { PROV_NAMES_X448, FIPS_DEFAULT_PROPERTIES, ossl_x448_keyexch_functions },
 377 #endif
 378     { PROV_NAMES_TLS1_PRF, FIPS_DEFAULT_PROPERTIES,
 379       ossl_kdf_tls1_prf_keyexch_functions },
 380     { PROV_NAMES_HKDF, FIPS_DEFAULT_PROPERTIES, ossl_kdf_hkdf_keyexch_functions },
 381     { NULL, NULL, NULL }
 382 };
 383
 384 static const OSSL_ALGORITHM fips_signature[] = {
 385 #ifndef OPENSSL_NO_DSA
 386     { PROV_NAMES_DSA, FIPS_DEFAULT_PROPERTIES, ossl_dsa_signature_functions },
 387 #endif
 388     { PROV_NAMES_RSA, FIPS_DEFAULT_PROPERTIES, ossl_rsa_signature_functions },
 389 #ifndef OPENSSL_NO_EC
 390     { PROV_NAMES_ED25519, FIPS_DEFAULT_PROPERTIES, ossl_ed25519_signature_functions },
 391     { PROV_NAMES_ED448, FIPS_DEFAULT_PROPERTIES, ossl_ed448_signature_functions },
 392     { PROV_NAMES_ECDSA, FIPS_DEFAULT_PROPERTIES, ossl_ecdsa_signature_functions },
 393 #endif
 394     { PROV_NAMES_HMAC, FIPS_DEFAULT_PROPERTIES,
 395       ossl_mac_legacy_hmac_signature_functions },
 396 #ifndef OPENSSL_NO_CMAC
 397     { PROV_NAMES_CMAC, FIPS_DEFAULT_PROPERTIES,
 398       ossl_mac_legacy_cmac_signature_functions },
 399 #endif
 400     { NULL, NULL, NULL }
 401 };
 402
 403 static const OSSL_ALGORITHM fips_asym_cipher[] = {
 404     { PROV_NAMES_RSA, FIPS_DEFAULT_PROPERTIES, ossl_rsa_asym_cipher_functions },
 405     { NULL, NULL, NULL }
 406 };
 407
 408 static const OSSL_ALGORITHM fips_asym_kem[] = {
 409     { PROV_NAMES_RSA, FIPS_DEFAULT_PROPERTIES, ossl_rsa_asym_kem_functions },
 410     { NULL, NULL, NULL }
 411 };
 412
 413 static const OSSL_ALGORITHM fips_keymgmt[] = {
 414 #ifndef OPENSSL_NO_DH
 415     { PROV_NAMES_DH, FIPS_DEFAULT_PROPERTIES, ossl_dh_keymgmt_functions,
 416       PROV_DESCS_DH },
 417     { PROV_NAMES_DHX, FIPS_DEFAULT_PROPERTIES, ossl_dhx_keymgmt_functions,
 418       PROV_DESCS_DHX },
 419 #endif
 420 #ifndef OPENSSL_NO_DSA
 421     { PROV_NAMES_DSA, FIPS_DEFAULT_PROPERTIES, ossl_dsa_keymgmt_functions,
 422       PROV_DESCS_DSA },
 423 #endif
 424     { PROV_NAMES_RSA, FIPS_DEFAULT_PROPERTIES, ossl_rsa_keymgmt_functions,
 425       PROV_DESCS_RSA },
 426     { PROV_NAMES_RSA_PSS, FIPS_DEFAULT_PROPERTIES,
 427       ossl_rsapss_keymgmt_functions, PROV_DESCS_RSA_PSS },
 428 #ifndef OPENSSL_NO_EC
 429     { PROV_NAMES_EC, FIPS_DEFAULT_PROPERTIES, ossl_ec_keymgmt_functions,
 430       PROV_DESCS_EC },
 431     { PROV_NAMES_X25519, FIPS_DEFAULT_PROPERTIES, ossl_x25519_keymgmt_functions,
 432       PROV_DESCS_X25519 },
 433     { PROV_NAMES_X448, FIPS_DEFAULT_PROPERTIES, ossl_x448_keymgmt_functions,
 434       PROV_DESCS_X448 },
 435     { PROV_NAMES_ED25519, FIPS_DEFAULT_PROPERTIES, ossl_ed25519_keymgmt_functions,
 436       PROV_DESCS_ED25519 },
 437     { PROV_NAMES_ED448, FIPS_DEFAULT_PROPERTIES, ossl_ed448_keymgmt_functions,
 438       PROV_DESCS_ED448 },
 439 #endif
 440     { PROV_NAMES_TLS1_PRF, FIPS_DEFAULT_PROPERTIES, ossl_kdf_keymgmt_functions,
 441       PROV_DESCS_TLS1_PRF_SIGN },
 442     { PROV_NAMES_HKDF, FIPS_DEFAULT_PROPERTIES, ossl_kdf_keymgmt_functions,
 443       PROV_DESCS_HKDF_SIGN },
 444     { PROV_NAMES_HMAC, FIPS_DEFAULT_PROPERTIES, ossl_mac_legacy_keymgmt_functions,
 445       PROV_DESCS_HMAC_SIGN },
 446 #ifndef OPENSSL_NO_CMAC
 447     { PROV_NAMES_CMAC, FIPS_DEFAULT_PROPERTIES,
 448       ossl_cmac_legacy_keymgmt_functions, PROV_DESCS_CMAC_SIGN },
 449 #endif
 450     { NULL, NULL, NULL }
 451 };
 452
 453 static const OSSL_ALGORITHM *fips_query(void *provctx, int operation_id,
 454                                         int *no_cache)
 455 {
 456     *no_cache = 0;
 457
 458     if (!ossl_prov_is_running())
 459         return NULL;
 460
 461     switch (operation_id) {
 462     case OSSL_OP_DIGEST:
 463         return fips_digests;
 464     case OSSL_OP_CIPHER:
 465         return exported_fips_ciphers;
 466     case OSSL_OP_MAC:
 467         return fips_macs;
 468     case OSSL_OP_KDF:
 469         return fips_kdfs;
 470     case OSSL_OP_RAND:
 471         return fips_rands;
 472     case OSSL_OP_KEYMGMT:
 473         return fips_keymgmt;
 474     case OSSL_OP_KEYEXCH:
 475         return fips_keyexch;
 476     case OSSL_OP_SIGNATURE:
 477         return fips_signature;
 478     case OSSL_OP_ASYM_CIPHER:
 479         return fips_asym_cipher;
 480     case OSSL_OP_KEM:
 481         return fips_asym_kem;
 482     }
 483     return NULL;
 484 }
 485
 486 static void fips_teardown(void *provctx)
 487 {
 488     OSSL_LIB_CTX_free(PROV_LIBCTX_OF(provctx));
 489     ossl_prov_ctx_free(provctx);
 490 }
 491
 492 static void fips_intern_teardown(void *provctx)
 493 {
 494     /*
 495      * We know that the library context is the same as for the outer provider,
 496      * so no need to destroy it here.
 497      */
 498     ossl_prov_ctx_free(provctx);
 499 }
 500
 501 /* Functions we provide to the core */
 502 static const OSSL_DISPATCH fips_dispatch_table[] = {
 503     { OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))fips_teardown },
 504     { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))fips_gettable_params },
 505     { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))fips_get_params },
 506     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))fips_query },
 507     { OSSL_FUNC_PROVIDER_GET_CAPABILITIES,
 508       (void (*)(void))ossl_prov_get_capabilities },
 509     { OSSL_FUNC_PROVIDER_SELF_TEST, (void (*)(void))fips_self_test },
 510     { 0, NULL }
 511 };
 512
 513 /* Functions we provide to ourself */
 514 static const OSSL_DISPATCH intern_dispatch_table[] = {
 515     { OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))fips_intern_teardown },
 516     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))fips_query },
 517     { 0, NULL }
 518 };
 519
 520 /*
 521  * On VMS, the provider init function name is expected to be uppercase,
 522  * see the pragmas in <openssl/core.h>.  Let's do the same with this
 523  * internal name.  This is how symbol names are treated by default
 524  * by the compiler if nothing else is said, but since this is part
 525  * of libfips, and we build our libraries with mixed case symbol names,
 526  * we must switch back to this default explicitly here.
 527  */
 528 #ifdef __VMS
 529 # pragma names save
 530 # pragma names uppercase,truncated
 531 #endif
 532 OSSL_provider_init_fn OSSL_provider_init_int;
 533 #ifdef __VMS
 534 # pragma names restore
 535 #endif
 536 int OSSL_provider_init_int(const OSSL_CORE_HANDLE *handle,
 537                            const OSSL_DISPATCH *in,
 538                            const OSSL_DISPATCH **out,
 539                            void **provctx)
 540 {
 541     FIPS_GLOBAL *fgbl;
 542     OSSL_LIB_CTX *libctx = NULL;
 543     SELF_TEST_POST_PARAMS selftest_params;
 544
 545     memset(&selftest_params, 0, sizeof(selftest_params));
 546
 547     if (!ossl_prov_seeding_from_dispatch(in))
 548         goto err;
 549     for (; in->function_id != 0; in++) {
 550         /*
 551          * We do not support the scenario of an application linked against
 552          * multiple versions of libcrypto (e.g. one static and one dynamic), but
 553          * sharing a single fips.so. We do a simple sanity check here.
 554          */
 555 #define set_func(c, f) if (c == NULL) c = f; else if (c != f) return 0;
 556         switch (in->function_id) {
 557         case OSSL_FUNC_CORE_GET_LIBCTX:
 558             set_func(c_get_libctx, OSSL_FUNC_core_get_libctx(in));
 559             break;
 560         case OSSL_FUNC_CORE_GETTABLE_PARAMS:
 561             set_func(c_gettable_params, OSSL_FUNC_core_gettable_params(in));
 562             break;
 563         case OSSL_FUNC_CORE_GET_PARAMS:
 564             set_func(c_get_params, OSSL_FUNC_core_get_params(in));
 565             break;
 566         case OSSL_FUNC_CORE_THREAD_START:
 567             set_func(c_thread_start, OSSL_FUNC_core_thread_start(in));
 568             break;
 569         case OSSL_FUNC_CORE_NEW_ERROR:
 570             set_func(c_new_error, OSSL_FUNC_core_new_error(in));
 571             break;
 572         case OSSL_FUNC_CORE_SET_ERROR_DEBUG:
 573             set_func(c_set_error_debug, OSSL_FUNC_core_set_error_debug(in));
 574             break;
 575         case OSSL_FUNC_CORE_VSET_ERROR:
 576             set_func(c_vset_error, OSSL_FUNC_core_vset_error(in));
 577             break;
 578         case OSSL_FUNC_CORE_SET_ERROR_MARK:
 579             set_func(c_set_error_mark, OSSL_FUNC_core_set_error_mark(in));
 580             break;
 581         case OSSL_FUNC_CORE_CLEAR_LAST_ERROR_MARK:
 582             set_func(c_clear_last_error_mark,
 583                      OSSL_FUNC_core_clear_last_error_mark(in));
 584             break;
 585         case OSSL_FUNC_CORE_POP_ERROR_TO_MARK:
 586             set_func(c_pop_error_to_mark, OSSL_FUNC_core_pop_error_to_mark(in));
 587             break;
 588         case OSSL_FUNC_CRYPTO_MALLOC:
 589             set_func(c_CRYPTO_malloc, OSSL_FUNC_CRYPTO_malloc(in));
 590             break;
 591         case OSSL_FUNC_CRYPTO_ZALLOC:
 592             set_func(c_CRYPTO_zalloc, OSSL_FUNC_CRYPTO_zalloc(in));
 593             break;
 594         case OSSL_FUNC_CRYPTO_FREE:
 595             set_func(c_CRYPTO_free, OSSL_FUNC_CRYPTO_free(in));
 596             break;
 597         case OSSL_FUNC_CRYPTO_CLEAR_FREE:
 598             set_func(c_CRYPTO_clear_free, OSSL_FUNC_CRYPTO_clear_free(in));
 599             break;
 600         case OSSL_FUNC_CRYPTO_REALLOC:
 601             set_func(c_CRYPTO_realloc, OSSL_FUNC_CRYPTO_realloc(in));
 602             break;
 603         case OSSL_FUNC_CRYPTO_CLEAR_REALLOC:
 604             set_func(c_CRYPTO_clear_realloc,
 605                      OSSL_FUNC_CRYPTO_clear_realloc(in));
 606             break;
 607         case OSSL_FUNC_CRYPTO_SECURE_MALLOC:
 608             set_func(c_CRYPTO_secure_malloc,
 609                      OSSL_FUNC_CRYPTO_secure_malloc(in));
 610             break;
 611         case OSSL_FUNC_CRYPTO_SECURE_ZALLOC:
 612             set_func(c_CRYPTO_secure_zalloc,
 613                      OSSL_FUNC_CRYPTO_secure_zalloc(in));
 614             break;
 615         case OSSL_FUNC_CRYPTO_SECURE_FREE:
 616             set_func(c_CRYPTO_secure_free,
 617                      OSSL_FUNC_CRYPTO_secure_free(in));
 618             break;
 619         case OSSL_FUNC_CRYPTO_SECURE_CLEAR_FREE:
 620             set_func(c_CRYPTO_secure_clear_free,
 621                      OSSL_FUNC_CRYPTO_secure_clear_free(in));
 622             break;
 623         case OSSL_FUNC_CRYPTO_SECURE_ALLOCATED:
 624             set_func(c_CRYPTO_secure_allocated,
 625                      OSSL_FUNC_CRYPTO_secure_allocated(in));
 626             break;
 627         case OSSL_FUNC_BIO_NEW_FILE:
 628             set_func(selftest_params.bio_new_file_cb,
 629                      OSSL_FUNC_BIO_new_file(in));
 630             break;
 631         case OSSL_FUNC_BIO_NEW_MEMBUF:
 632             set_func(selftest_params.bio_new_buffer_cb,
 633                      OSSL_FUNC_BIO_new_membuf(in));
 634             break;
 635         case OSSL_FUNC_BIO_READ_EX:
 636             set_func(selftest_params.bio_read_ex_cb,
 637                      OSSL_FUNC_BIO_read_ex(in));
 638             break;
 639         case OSSL_FUNC_BIO_FREE:
 640             set_func(selftest_params.bio_free_cb, OSSL_FUNC_BIO_free(in));
 641             break;
 642         case OSSL_FUNC_BIO_VSNPRINTF:
 643             set_func(c_BIO_vsnprintf, OSSL_FUNC_BIO_vsnprintf(in));
 644             break;
 645         case OSSL_FUNC_SELF_TEST_CB:
 646             set_func(c_stcbfn, OSSL_FUNC_self_test_cb(in));
 647             break;
 648         default:
 649             /* Just ignore anything we don't understand */
 650             break;
 651         }
 652     }
 653
 654     /*  Create a context. */
 655     if ((*provctx = ossl_prov_ctx_new()) == NULL
 656         || (libctx = OSSL_LIB_CTX_new()) == NULL) {
 657         /*
 658          * We free libctx separately here and only here because it hasn't
 659          * been attached to *provctx.  All other error paths below rely
 660          * solely on fips_teardown.
 661          */
 662         OSSL_LIB_CTX_free(libctx);
 663         goto err;
 664     }
 665
 666     if ((fgbl = ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_FIPS_PROV_INDEX)) == NULL)
 667         goto err;
 668
 669     fgbl->handle = handle;
 670
 671     /*
 672      * We did initial set up of selftest_params in a local copy, because we
 673      * could not create fgbl until c_CRYPTO_zalloc was defined in the loop
 674      * above.
 675      */
 676     fgbl->selftest_params = selftest_params;
 677
 678     fgbl->selftest_params.libctx = libctx;
 679
 680     set_self_test_cb(fgbl);
 681
 682     if (!fips_get_params_from_core(fgbl)) {
 683         /* Error already raised */
 684         goto err;
 685     }
 686     /*
 687      * Disable the conditional error check if it's disabled in the fips config
 688      * file.
 689      */
 690     if (fgbl->selftest_params.conditional_error_check != NULL
 691         && strcmp(fgbl->selftest_params.conditional_error_check, "0") == 0)
 692         SELF_TEST_disable_conditional_error_state();
 693
 694     /* Disable the security check if it's disabled in the fips config file. */
 695     if (fgbl->fips_security_check_option != NULL
 696         && strcmp(fgbl->fips_security_check_option, "0") == 0)
 697         fgbl->fips_security_checks = 0;
 698
 699     ossl_prov_cache_exported_algorithms(fips_ciphers, exported_fips_ciphers);
 700
 701     if (!SELF_TEST_post(&fgbl->selftest_params, 0)) {
 702         ERR_raise(ERR_LIB_PROV, PROV_R_SELF_TEST_POST_FAILURE);
 703         goto err;
 704     }
 705
 706     ossl_prov_ctx_set0_libctx(*provctx, libctx);
 707     ossl_prov_ctx_set0_handle(*provctx, handle);
 708
 709     *out = fips_dispatch_table;
 710     return 1;
 711  err:
 712     fips_teardown(*provctx);
 713     OSSL_LIB_CTX_free(libctx);
 714     *provctx = NULL;
 715     return 0;
 716 }
 717
 718 /*
 719  * The internal init function used when the FIPS module uses EVP to call
 720  * another algorithm also in the FIPS module. This is a recursive call that has
 721  * been made from within the FIPS module itself. To make this work, we populate
 722  * the provider context of this inner instance with the same library context
 723  * that was used in the EVP call that initiated this recursive call.
 724  */
 725 OSSL_provider_init_fn ossl_fips_intern_provider_init;
 726 int ossl_fips_intern_provider_init(const OSSL_CORE_HANDLE *handle,
 727                                    const OSSL_DISPATCH *in,
 728                                    const OSSL_DISPATCH **out,
 729                                    void **provctx)
 730 {
 731     OSSL_FUNC_core_get_libctx_fn *c_internal_get_libctx = NULL;
 732
 733     for (; in->function_id != 0; in++) {
 734         switch (in->function_id) {
 735         case OSSL_FUNC_CORE_GET_LIBCTX:
 736             c_internal_get_libctx = OSSL_FUNC_core_get_libctx(in);
 737             break;
 738         default:
 739             break;
 740         }
 741     }
 742
 743     if (c_internal_get_libctx == NULL)
 744         return 0;
 745
 746     if ((*provctx = ossl_prov_ctx_new()) == NULL)
 747         return 0;
 748
 749     /*
 750      * Using the parent library context only works because we are a built-in
 751      * internal provider. This is not something that most providers would be
 752      * able to do.
 753      */
 754     ossl_prov_ctx_set0_libctx(*provctx,
 755                               (OSSL_LIB_CTX *)c_internal_get_libctx(handle));
 756     ossl_prov_ctx_set0_handle(*provctx, handle);
 757
 758     *out = intern_dispatch_table;
 759     return 1;
 760 }
 761
 762 void ERR_new(void)
 763 {
 764     c_new_error(NULL);
 765 }
 766
 767 void ERR_set_debug(const char *file, int line, const char *func)
 768 {
 769     c_set_error_debug(NULL, file, line, func);
 770 }
 771
 772 void ERR_set_error(int lib, int reason, const char *fmt, ...)
 773 {
 774     va_list args;
 775
 776     va_start(args, fmt);
 777     c_vset_error(NULL, ERR_PACK(lib, 0, reason), fmt, args);
 778     va_end(args);
 779 }
 780
 781 void ERR_vset_error(int lib, int reason, const char *fmt, va_list args)
 782 {
 783     c_vset_error(NULL, ERR_PACK(lib, 0, reason), fmt, args);
 784 }
 785
 786 int ERR_set_mark(void)
 787 {
 788     return c_set_error_mark(NULL);
 789 }
 790
 791 int ERR_clear_last_mark(void)
 792 {
 793     return c_clear_last_error_mark(NULL);
 794 }
 795
 796 int ERR_pop_to_mark(void)
 797 {
 798     return c_pop_error_to_mark(NULL);
 799 }
 800
 801 /*
 802  * This must take a library context, since it's called from the depths
 803  * of crypto/initthread.c code, where it's (correctly) assumed that the
 804  * passed caller argument is an OSSL_LIB_CTX pointer (since the same routine
 805  * is also called from other parts of libcrypto, which all pass around a
 806  * OSSL_LIB_CTX pointer)
 807  */
 808 const OSSL_CORE_HANDLE *FIPS_get_core_handle(OSSL_LIB_CTX *libctx)
 809 {
 810     FIPS_GLOBAL *fgbl = ossl_lib_ctx_get_data(libctx,
 811                                               OSSL_LIB_CTX_FIPS_PROV_INDEX);
 812
 813     if (fgbl == NULL)
 814         return NULL;
 815
 816     return fgbl->handle;
 817 }
 818
 819 void *CRYPTO_malloc(size_t num, const char *file, int line)
 820 {
 821     return c_CRYPTO_malloc(num, file, line);
 822 }
 823
 824 void *CRYPTO_zalloc(size_t num, const char *file, int line)
 825 {
 826     return c_CRYPTO_zalloc(num, file, line);
 827 }
 828
 829 void CRYPTO_free(void *ptr, const char *file, int line)
 830 {
 831     c_CRYPTO_free(ptr, file, line);
 832 }
 833
 834 void CRYPTO_clear_free(void *ptr, size_t num, const char *file, int line)
 835 {
 836     c_CRYPTO_clear_free(ptr, num, file, line);
 837 }
 838
 839 void *CRYPTO_realloc(void *addr, size_t num, const char *file, int line)
 840 {
 841     return c_CRYPTO_realloc(addr, num, file, line);
 842 }
 843
 844 void *CRYPTO_clear_realloc(void *addr, size_t old_num, size_t num,
 845                            const char *file, int line)
 846 {
 847     return c_CRYPTO_clear_realloc(addr, old_num, num, file, line);
 848 }
 849
 850 void *CRYPTO_secure_malloc(size_t num, const char *file, int line)
 851 {
 852     return c_CRYPTO_secure_malloc(num, file, line);
 853 }
 854
 855 void *CRYPTO_secure_zalloc(size_t num, const char *file, int line)
 856 {
 857     return c_CRYPTO_secure_zalloc(num, file, line);
 858 }
 859
 860 void CRYPTO_secure_free(void *ptr, const char *file, int line)
 861 {
 862     c_CRYPTO_secure_free(ptr, file, line);
 863 }
 864
 865 void CRYPTO_secure_clear_free(void *ptr, size_t num, const char *file, int line)
 866 {
 867     c_CRYPTO_secure_clear_free(ptr, num, file, line);
 868 }
 869
 870 int CRYPTO_secure_allocated(const void *ptr)
 871 {
 872     return c_CRYPTO_secure_allocated(ptr);
 873 }
 874
 875 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
 876 {
 877     va_list args;
 878     int ret;
 879
 880     va_start(args, format);
 881     ret = c_BIO_vsnprintf(buf, n, format, args);
 882     va_end(args);
 883     return ret;
 884 }
 885
 886 int FIPS_security_check_enabled(OSSL_LIB_CTX *libctx)
 887 {
 888     FIPS_GLOBAL *fgbl = ossl_lib_ctx_get_data(libctx,
 889                                               OSSL_LIB_CTX_FIPS_PROV_INDEX);
 890
 891     return fgbl->fips_security_checks;
 892 }
 893
 894 void OSSL_SELF_TEST_get_callback(OSSL_LIB_CTX *libctx, OSSL_CALLBACK **cb,
 895                                  void **cbarg)
 896 {
 897     assert(libctx != NULL);
 898
 899     if (c_stcbfn != NULL && c_get_libctx != NULL) {
 900         /* Get the parent libctx */
 901         c_stcbfn(c_get_libctx(FIPS_get_core_handle(libctx)), cb, cbarg);
 902     } else {
 903         if (cb != NULL)
 904             *cb = NULL;
 905         if (cbarg != NULL)
 906             *cbarg = NULL;
 907     }
 908 }