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329 lines
11 KiB
C
329 lines
11 KiB
C
/** @file
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UEFI Openssl provider implementation.
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Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <string.h>
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#include <stdio.h>
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#include <openssl/opensslconf.h>
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#include <openssl/core.h>
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#include <openssl/core_dispatch.h>
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#include <openssl/core_names.h>
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#include <openssl/params.h>
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#include "prov/bio.h"
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#include "prov/provider_ctx.h"
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#include "prov/providercommon.h"
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#include "prov/implementations.h"
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#include "prov/names.h"
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#include "prov/provider_util.h"
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#include "prov/seeding.h"
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#include "internal/nelem.h"
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#include "provider_local.h"
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OSSL_provider_init_fn ossl_uefi_provider_init;
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const OSSL_PROVIDER_INFO ossl_predefined_providers[] = {
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{ "default", NULL, ossl_uefi_provider_init, NULL, 1 },
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{ NULL, NULL, NULL, NULL, 0 }
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};
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/*
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* Forward declarations to ensure that interface functions are correctly
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* defined.
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*/
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static OSSL_FUNC_provider_gettable_params_fn deflt_gettable_params;
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static OSSL_FUNC_provider_get_params_fn deflt_get_params;
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static OSSL_FUNC_provider_query_operation_fn deflt_query;
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#define ALGC(NAMES, FUNC, CHECK) { { NAMES, "provider=default", FUNC }, CHECK }
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#define ALG(NAMES, FUNC) ALGC(NAMES, FUNC, NULL)
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/* Functions provided by the core */
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static OSSL_FUNC_core_gettable_params_fn *c_gettable_params = NULL;
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static OSSL_FUNC_core_get_params_fn *c_get_params = NULL;
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/* Parameters we provide to the core */
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static const OSSL_PARAM deflt_param_types[] = {
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OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
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OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
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OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
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OSSL_PARAM_DEFN(OSSL_PROV_PARAM_STATUS, OSSL_PARAM_INTEGER, NULL, 0),
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OSSL_PARAM_END
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};
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static const OSSL_PARAM *deflt_gettable_params(void *provctx)
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{
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return deflt_param_types;
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}
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static int deflt_get_params(void *provctx, OSSL_PARAM params[])
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{
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OSSL_PARAM *p;
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p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
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if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Default Provider"))
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return 0;
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p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
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if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
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return 0;
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p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
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if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
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return 0;
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p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
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if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
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return 0;
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return 1;
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}
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/*
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* For the algorithm names, we use the following formula for our primary
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* names:
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*
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* ALGNAME[VERSION?][-SUBNAME[VERSION?]?][-SIZE?][-MODE?]
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*
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* VERSION is only present if there are multiple versions of
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* an alg (MD2, MD4, MD5). It may be omitted if there is only
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* one version (if a subsequent version is released in the future,
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* we can always change the canonical name, and add the old name
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* as an alias).
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*
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* SUBNAME may be present where we are combining multiple
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* algorithms together, e.g. MD5-SHA1.
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*
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* SIZE is only present if multiple versions of an algorithm exist
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* with different sizes (e.g. AES-128-CBC, AES-256-CBC)
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*
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* MODE is only present where applicable.
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*
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* We add diverse other names where applicable, such as the names that
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* NIST uses, or that are used for ASN.1 OBJECT IDENTIFIERs, or names
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* we have used historically.
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*
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* Algorithm names are case insensitive, but we use all caps in our "canonical"
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* names for consistency.
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*/
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static const OSSL_ALGORITHM deflt_digests[] = {
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/* Our primary name:NIST name[:our older names] */
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{ PROV_NAMES_SHA1, "provider=default", ossl_sha1_functions },
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{ PROV_NAMES_SHA2_224, "provider=default", ossl_sha224_functions },
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{ PROV_NAMES_SHA2_256, "provider=default", ossl_sha256_functions },
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{ PROV_NAMES_SHA2_384, "provider=default", ossl_sha384_functions },
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{ PROV_NAMES_SHA2_512, "provider=default", ossl_sha512_functions },
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#ifndef OPENSSL_NO_SM3
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{ PROV_NAMES_SM3, "provider=default", ossl_sm3_functions },
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#endif /* OPENSSL_NO_SM3 */
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#ifndef OPENSSL_NO_MD5
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{ PROV_NAMES_MD5, "provider=default", ossl_md5_functions },
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#endif /* OPENSSL_NO_MD5 */
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{ PROV_NAMES_NULL, "provider=default", ossl_nullmd_functions },
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{ NULL, NULL, NULL }
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};
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static const OSSL_ALGORITHM_CAPABLE deflt_ciphers[] = {
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ALG(PROV_NAMES_NULL, ossl_null_functions),
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ALG(PROV_NAMES_AES_256_ECB, ossl_aes256ecb_functions),
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ALG(PROV_NAMES_AES_192_ECB, ossl_aes192ecb_functions),
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ALG(PROV_NAMES_AES_128_ECB, ossl_aes128ecb_functions),
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ALG(PROV_NAMES_AES_256_CBC, ossl_aes256cbc_functions),
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ALG(PROV_NAMES_AES_192_CBC, ossl_aes192cbc_functions),
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ALG(PROV_NAMES_AES_128_CBC, ossl_aes128cbc_functions),
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ALG(PROV_NAMES_AES_256_CTR, ossl_aes256ctr_functions),
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ALG(PROV_NAMES_AES_192_CTR, ossl_aes192ctr_functions),
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ALG(PROV_NAMES_AES_128_CTR, ossl_aes128ctr_functions),
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ALG(PROV_NAMES_AES_256_GCM, ossl_aes256gcm_functions),
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ALG(PROV_NAMES_AES_192_GCM, ossl_aes192gcm_functions),
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ALG(PROV_NAMES_AES_128_GCM, ossl_aes128gcm_functions),
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{ { NULL, NULL, NULL }, NULL }
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};
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static OSSL_ALGORITHM exported_ciphers[OSSL_NELEM(deflt_ciphers)];
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static const OSSL_ALGORITHM deflt_macs[] = {
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{ PROV_NAMES_HMAC, "provider=default", ossl_hmac_functions },
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{ NULL, NULL, NULL }
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};
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static const OSSL_ALGORITHM deflt_kdfs[] = {
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{ PROV_NAMES_HKDF, "provider=default", ossl_kdf_hkdf_functions },
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{ PROV_NAMES_SSKDF, "provider=default", ossl_kdf_sskdf_functions },
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{ PROV_NAMES_PBKDF2, "provider=default", ossl_kdf_pbkdf2_functions },
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{ PROV_NAMES_SSHKDF, "provider=default", ossl_kdf_sshkdf_functions },
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{ PROV_NAMES_TLS1_PRF, "provider=default", ossl_kdf_tls1_prf_functions },
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{ NULL, NULL, NULL }
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};
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static const OSSL_ALGORITHM deflt_keyexch[] = {
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#ifndef OPENSSL_NO_DH
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{ PROV_NAMES_DH, "provider=default", ossl_dh_keyexch_functions },
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#endif
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#ifndef OPENSSL_NO_EC
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{ PROV_NAMES_ECDH, "provider=default", ossl_ecdh_keyexch_functions },
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#endif
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{ PROV_NAMES_TLS1_PRF, "provider=default", ossl_kdf_tls1_prf_keyexch_functions },
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{ PROV_NAMES_HKDF, "provider=default", ossl_kdf_hkdf_keyexch_functions },
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{ NULL, NULL, NULL }
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};
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static const OSSL_ALGORITHM deflt_rands[] = {
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{ PROV_NAMES_CTR_DRBG, "provider=default", ossl_drbg_ctr_functions },
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{ PROV_NAMES_HASH_DRBG, "provider=default", ossl_drbg_hash_functions },
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{ NULL, NULL, NULL }
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};
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static const OSSL_ALGORITHM deflt_signature[] = {
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{ PROV_NAMES_RSA, "provider=default", ossl_rsa_signature_functions },
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#ifndef OPENSSL_NO_EC
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{ PROV_NAMES_ECDSA, "provider=default", ossl_ecdsa_signature_functions },
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#endif
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{ NULL, NULL, NULL }
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};
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static const OSSL_ALGORITHM deflt_asym_cipher[] = {
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{ PROV_NAMES_RSA, "provider=default", ossl_rsa_asym_cipher_functions },
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{ NULL, NULL, NULL }
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};
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static const OSSL_ALGORITHM deflt_keymgmt[] = {
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#ifndef OPENSSL_NO_DH
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{ PROV_NAMES_DH, "provider=default", ossl_dh_keymgmt_functions,
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PROV_DESCS_DH },
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{ PROV_NAMES_DHX, "provider=default", ossl_dhx_keymgmt_functions,
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PROV_DESCS_DHX },
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#endif
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{ PROV_NAMES_RSA, "provider=default", ossl_rsa_keymgmt_functions,
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PROV_DESCS_RSA },
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{ PROV_NAMES_RSA_PSS, "provider=default", ossl_rsapss_keymgmt_functions,
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PROV_DESCS_RSA_PSS },
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#ifndef OPENSSL_NO_EC
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{ PROV_NAMES_EC, "provider=default", ossl_ec_keymgmt_functions,
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PROV_DESCS_EC },
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#endif
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{ PROV_NAMES_TLS1_PRF, "provider=default", ossl_kdf_keymgmt_functions,
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PROV_DESCS_TLS1_PRF_SIGN },
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{ PROV_NAMES_HKDF, "provider=default", ossl_kdf_keymgmt_functions,
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PROV_DESCS_HKDF_SIGN },
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{ NULL, NULL, NULL }
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};
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static const OSSL_ALGORITHM deflt_decoder[] = {
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#define DECODER_PROVIDER "default"
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#include "decoders.inc"
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{ NULL, NULL, NULL }
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#undef DECODER_PROVIDER
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};
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static const OSSL_ALGORITHM *deflt_query(void *provctx, int operation_id,
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int *no_cache)
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{
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*no_cache = 0;
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switch (operation_id) {
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case OSSL_OP_DIGEST:
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return deflt_digests;
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case OSSL_OP_CIPHER:
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return exported_ciphers;
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case OSSL_OP_MAC:
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return deflt_macs;
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case OSSL_OP_KDF:
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return deflt_kdfs;
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case OSSL_OP_RAND:
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return deflt_rands;
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case OSSL_OP_KEYMGMT:
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return deflt_keymgmt;
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case OSSL_OP_KEYEXCH:
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return deflt_keyexch;
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case OSSL_OP_SIGNATURE:
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return deflt_signature;
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case OSSL_OP_ASYM_CIPHER:
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return deflt_asym_cipher;
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case OSSL_OP_DECODER:
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return deflt_decoder;
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}
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return NULL;
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}
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static void deflt_teardown(void *provctx)
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{
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BIO_meth_free(ossl_prov_ctx_get0_core_bio_method(provctx));
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ossl_prov_ctx_free(provctx);
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}
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/* Functions we provide to the core */
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static const OSSL_DISPATCH deflt_dispatch_table[] = {
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{ OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))deflt_teardown },
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{ OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))deflt_gettable_params },
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{ OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))deflt_get_params },
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{ OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))deflt_query },
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{ OSSL_FUNC_PROVIDER_GET_CAPABILITIES,
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(void (*)(void))ossl_prov_get_capabilities },
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{ 0, NULL }
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};
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OSSL_provider_init_fn ossl_uefi_provider_init;
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int ossl_uefi_provider_init(const OSSL_CORE_HANDLE *handle,
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const OSSL_DISPATCH *in,
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const OSSL_DISPATCH **out,
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void **provctx)
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{
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OSSL_FUNC_core_get_libctx_fn *c_get_libctx = NULL;
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BIO_METHOD *corebiometh;
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if (!ossl_prov_bio_from_dispatch(in)
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|| !ossl_prov_seeding_from_dispatch(in))
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return 0;
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for (; in->function_id != 0; in++) {
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switch (in->function_id) {
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case OSSL_FUNC_CORE_GETTABLE_PARAMS:
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c_gettable_params = OSSL_FUNC_core_gettable_params(in);
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break;
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case OSSL_FUNC_CORE_GET_PARAMS:
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c_get_params = OSSL_FUNC_core_get_params(in);
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break;
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case OSSL_FUNC_CORE_GET_LIBCTX:
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c_get_libctx = OSSL_FUNC_core_get_libctx(in);
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break;
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default:
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/* Just ignore anything we don't understand */
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break;
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}
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}
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if (c_get_libctx == NULL)
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return 0;
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/*
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* We want to make sure that all calls from this provider that requires
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* a library context use the same context as the one used to call our
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* functions. We do that by passing it along in the provider context.
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*
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* This only works for built-in providers. Most providers should
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* create their own library context.
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*/
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if ((*provctx = ossl_prov_ctx_new()) == NULL
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|| (corebiometh = ossl_bio_prov_init_bio_method()) == NULL) {
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ossl_prov_ctx_free(*provctx);
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*provctx = NULL;
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return 0;
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}
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ossl_prov_ctx_set0_libctx(*provctx,
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(OSSL_LIB_CTX *)c_get_libctx(handle));
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ossl_prov_ctx_set0_handle(*provctx, handle);
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ossl_prov_ctx_set0_core_bio_method(*provctx, corebiometh);
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*out = deflt_dispatch_table;
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ossl_prov_cache_exported_algorithms(deflt_ciphers, exported_ciphers);
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return 1;
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}
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