providers/legacyprov.c - third_party/openssl - Git at Google

 /*
  * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */

 #include <string.h>
 #include <stdio.h>
 #include <openssl/core.h>
 #include <openssl/core_dispatch.h>
 #include <openssl/core_names.h>
 #include <openssl/params.h>
 #include "prov/provider_ctx.h"
 #include "prov/implementations.h"
 #include "prov/providercommon.h"

 /*
  * Forward declarations to ensure that interface functions are correctly
  * defined.
  */
 static OSSL_FUNC_provider_gettable_params_fn legacy_gettable_params;
 static OSSL_FUNC_provider_get_params_fn legacy_get_params;
 static OSSL_FUNC_provider_query_operation_fn legacy_query;

 #define ALG(NAMES, FUNC) { NAMES, "provider=legacy", FUNC }

 #ifdef STATIC_LEGACY
 OSSL_provider_init_fn ossl_legacy_provider_init;
 # define OSSL_provider_init ossl_legacy_provider_init
 #endif

 /* Functions provided by the core */
 static OSSL_FUNC_core_gettable_params_fn *c_gettable_params = NULL;
 static OSSL_FUNC_core_get_params_fn *c_get_params = NULL;

 /* Parameters we provide to the core */
 static const OSSL_PARAM legacy_param_types[] = {
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_STATUS, OSSL_PARAM_INTEGER, NULL, 0),
     OSSL_PARAM_END
 };

 static const OSSL_PARAM *legacy_gettable_params(void *provctx)
 {
     return legacy_param_types;
 }

 static int legacy_get_params(void *provctx, OSSL_PARAM params[])
 {
     OSSL_PARAM *p;

     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Legacy Provider"))
         return 0;
     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
         return 0;
     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
         return 0;
     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
     if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
         return 0;
     return 1;
 }

 static const OSSL_ALGORITHM legacy_digests[] = {
 #ifndef OPENSSL_NO_MD2
     ALG("MD2", ossl_md2_functions),
 #endif
 #ifndef OPENSSL_NO_MD4
     ALG("MD4", ossl_md4_functions),
 #endif
 #ifndef OPENSSL_NO_MDC2
     ALG("MDC2", ossl_mdc2_functions),
 #endif /* OPENSSL_NO_MDC2 */
 #ifndef OPENSSL_NO_WHIRLPOOL
     ALG("WHIRLPOOL", ossl_wp_functions),
 #endif /* OPENSSL_NO_WHIRLPOOL */
 #ifndef OPENSSL_NO_RMD160
     ALG("RIPEMD-160:RIPEMD160:RIPEMD:RMD160", ossl_ripemd160_functions),
 #endif /* OPENSSL_NO_RMD160 */
     { NULL, NULL, NULL }
 };

 static const OSSL_ALGORITHM legacy_ciphers[] = {
 #ifndef OPENSSL_NO_CAST
     ALG("CAST5-ECB", ossl_cast5128ecb_functions),
     ALG("CAST5-CBC:CAST-CBC:CAST", ossl_cast5128cbc_functions),
     ALG("CAST5-OFB", ossl_cast5128ofb64_functions),
     ALG("CAST5-CFB", ossl_cast5128cfb64_functions),
 #endif /* OPENSSL_NO_CAST */
 #ifndef OPENSSL_NO_BF
     ALG("BF-ECB", ossl_blowfish128ecb_functions),
     ALG("BF-CBC:BF:BLOWFISH", ossl_blowfish128cbc_functions),
     ALG("BF-OFB", ossl_blowfish64ofb64_functions),
     ALG("BF-CFB", ossl_blowfish64cfb64_functions),
 #endif /* OPENSSL_NO_BF */
 #ifndef OPENSSL_NO_IDEA
     ALG("IDEA-ECB", ossl_idea128ecb_functions),
     ALG("IDEA-CBC:IDEA", ossl_idea128cbc_functions),
     ALG("IDEA-OFB:IDEA-OFB64", ossl_idea128ofb64_functions),
     ALG("IDEA-CFB:IDEA-CFB64", ossl_idea128cfb64_functions),
 #endif /* OPENSSL_NO_IDEA */
 #ifndef OPENSSL_NO_SEED
     ALG("SEED-ECB", ossl_seed128ecb_functions),
     ALG("SEED-CBC:SEED", ossl_seed128cbc_functions),
     ALG("SEED-OFB:SEED-OFB128", ossl_seed128ofb128_functions),
     ALG("SEED-CFB:SEED-CFB128", ossl_seed128cfb128_functions),
 #endif /* OPENSSL_NO_SEED */
 #ifndef OPENSSL_NO_RC2
     ALG("RC2-ECB", ossl_rc2128ecb_functions),
     ALG("RC2-CBC:RC2:RC2-128", ossl_rc2128cbc_functions),
     ALG("RC2-40-CBC:RC2-40", ossl_rc240cbc_functions),
     ALG("RC2-64-CBC:RC2-64", ossl_rc264cbc_functions),
     ALG("RC2-CFB", ossl_rc2128cfb128_functions),
     ALG("RC2-OFB", ossl_rc2128ofb128_functions),
 #endif /* OPENSSL_NO_RC2 */
 #ifndef OPENSSL_NO_RC4
     ALG("RC4", ossl_rc4128_functions),
     ALG("RC4-40", ossl_rc440_functions),
 # ifndef OPENSSL_NO_MD5
     ALG("RC4-HMAC-MD5", ossl_rc4_hmac_ossl_md5_functions),
 # endif /* OPENSSL_NO_MD5 */
 #endif /* OPENSSL_NO_RC4 */
 #ifndef OPENSSL_NO_RC5
     ALG("RC5-ECB", ossl_rc5128ecb_functions),
     ALG("RC5-CBC:RC5", ossl_rc5128cbc_functions),
     ALG("RC5-OFB", ossl_rc5128ofb64_functions),
     ALG("RC5-CFB", ossl_rc5128cfb64_functions),
 #endif /* OPENSSL_NO_RC5 */
 #ifndef OPENSSL_NO_DES
     ALG("DESX-CBC:DESX", ossl_tdes_desx_cbc_functions),
     ALG("DES-ECB", ossl_des_ecb_functions),
     ALG("DES-CBC:DES", ossl_des_cbc_functions),
     ALG("DES-OFB", ossl_des_ofb64_functions),
     ALG("DES-CFB", ossl_des_cfb64_functions),
     ALG("DES-CFB1", ossl_des_cfb1_functions),
     ALG("DES-CFB8", ossl_des_cfb8_functions),
 #endif /* OPENSSL_NO_DES */
     { NULL, NULL, NULL }
 };

 static const OSSL_ALGORITHM *legacy_query(void *provctx, int operation_id,
                                           int *no_cache)
 {
     *no_cache = 0;
     switch (operation_id) {
     case OSSL_OP_DIGEST:
         return legacy_digests;
     case OSSL_OP_CIPHER:
         return legacy_ciphers;
     }
     return NULL;
 }

 static void legacy_teardown(void *provctx)
 {
     OSSL_LIB_CTX_free(PROV_LIBCTX_OF(provctx));
     ossl_prov_ctx_free(provctx);
 }

 /* Functions we provide to the core */
 static const OSSL_DISPATCH legacy_dispatch_table[] = {
     { OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))legacy_teardown },
     { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))legacy_gettable_params },
     { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))legacy_get_params },
     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))legacy_query },
     { 0, NULL }
 };

 int OSSL_provider_init(const OSSL_CORE_HANDLE *handle,
                        const OSSL_DISPATCH *in,
                        const OSSL_DISPATCH **out,
                        void **provctx)
 {
     OSSL_FUNC_core_get_libctx_fn *c_get_libctx = NULL;
     OSSL_LIB_CTX *libctx = NULL;

     for (; in->function_id != 0; in++) {
         switch (in->function_id) {
         case OSSL_FUNC_CORE_GETTABLE_PARAMS:
             c_gettable_params = OSSL_FUNC_core_gettable_params(in);
             break;
         case OSSL_FUNC_CORE_GET_PARAMS:
             c_get_params = OSSL_FUNC_core_get_params(in);
             break;
         case OSSL_FUNC_CORE_GET_LIBCTX:
             c_get_libctx = OSSL_FUNC_core_get_libctx(in);
             break;
         /* Just ignore anything we don't understand */
         default:
             break;
         }
     }

     if (c_get_libctx == NULL)
         return 0;

     if ((*provctx = ossl_prov_ctx_new()) == NULL
         || (libctx = OSSL_LIB_CTX_new()) == NULL) {
         OSSL_LIB_CTX_free(libctx);
         legacy_teardown(*provctx);
         *provctx = NULL;
         return 0;
     }
     ossl_prov_ctx_set0_libctx(*provctx, libctx);
     ossl_prov_ctx_set0_handle(*provctx, handle);

     *out = legacy_dispatch_table;

     return 1;
 }
	/*
	* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
	*
	* Licensed under the Apache License 2.0 (the "License"). You may not use
	* this file except in compliance with the License. You can obtain a copy
	* in the file LICENSE in the source distribution or at
	* https://www.openssl.org/source/license.html
	*/

	#include <string.h>
	#include <stdio.h>
	#include <openssl/core.h>
	#include <openssl/core_dispatch.h>
	#include <openssl/core_names.h>
	#include <openssl/params.h>
	#include "prov/provider_ctx.h"
	#include "prov/implementations.h"
	#include "prov/providercommon.h"

	/*
	* Forward declarations to ensure that interface functions are correctly
	* defined.
	*/
	static OSSL_FUNC_provider_gettable_params_fn legacy_gettable_params;
	static OSSL_FUNC_provider_get_params_fn legacy_get_params;
	static OSSL_FUNC_provider_query_operation_fn legacy_query;

	#define ALG(NAMES, FUNC) { NAMES, "provider=legacy", FUNC }

	#ifdef STATIC_LEGACY
	OSSL_provider_init_fn ossl_legacy_provider_init;
	# define OSSL_provider_init ossl_legacy_provider_init
	#endif

	/* Functions provided by the core */
	static OSSL_FUNC_core_gettable_params_fn *c_gettable_params = NULL;
	static OSSL_FUNC_core_get_params_fn *c_get_params = NULL;

	/* Parameters we provide to the core */
	static const OSSL_PARAM legacy_param_types[] = {
	OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
	OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
	OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
	OSSL_PARAM_DEFN(OSSL_PROV_PARAM_STATUS, OSSL_PARAM_INTEGER, NULL, 0),
	OSSL_PARAM_END
	};

	static const OSSL_PARAM legacy_gettable_params(void provctx)
	{
	return legacy_param_types;
	}

	static int legacy_get_params(void *provctx, OSSL_PARAM params[])
	{
	OSSL_PARAM *p;

	p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
	if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Legacy Provider"))
	return 0;
	p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
	if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
	return 0;
	p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
	if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
	return 0;
	p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
	if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
	return 0;
	return 1;
	}

	static const OSSL_ALGORITHM legacy_digests[] = {
	#ifndef OPENSSL_NO_MD2
	ALG("MD2", ossl_md2_functions),
	#endif
	#ifndef OPENSSL_NO_MD4
	ALG("MD4", ossl_md4_functions),
	#endif
	#ifndef OPENSSL_NO_MDC2
	ALG("MDC2", ossl_mdc2_functions),
	#endif /* OPENSSL_NO_MDC2 */
	#ifndef OPENSSL_NO_WHIRLPOOL
	ALG("WHIRLPOOL", ossl_wp_functions),
	#endif /* OPENSSL_NO_WHIRLPOOL */
	#ifndef OPENSSL_NO_RMD160
	ALG("RIPEMD-160:RIPEMD160:RIPEMD:RMD160", ossl_ripemd160_functions),
	#endif /* OPENSSL_NO_RMD160 */
	{ NULL, NULL, NULL }
	};

	static const OSSL_ALGORITHM legacy_ciphers[] = {
	#ifndef OPENSSL_NO_CAST
	ALG("CAST5-ECB", ossl_cast5128ecb_functions),
	ALG("CAST5-CBC:CAST-CBC:CAST", ossl_cast5128cbc_functions),
	ALG("CAST5-OFB", ossl_cast5128ofb64_functions),
	ALG("CAST5-CFB", ossl_cast5128cfb64_functions),
	#endif /* OPENSSL_NO_CAST */
	#ifndef OPENSSL_NO_BF
	ALG("BF-ECB", ossl_blowfish128ecb_functions),
	ALG("BF-CBC:BF:BLOWFISH", ossl_blowfish128cbc_functions),
	ALG("BF-OFB", ossl_blowfish64ofb64_functions),
	ALG("BF-CFB", ossl_blowfish64cfb64_functions),
	#endif /* OPENSSL_NO_BF */
	#ifndef OPENSSL_NO_IDEA
	ALG("IDEA-ECB", ossl_idea128ecb_functions),
	ALG("IDEA-CBC:IDEA", ossl_idea128cbc_functions),
	ALG("IDEA-OFB:IDEA-OFB64", ossl_idea128ofb64_functions),
	ALG("IDEA-CFB:IDEA-CFB64", ossl_idea128cfb64_functions),
	#endif /* OPENSSL_NO_IDEA */
	#ifndef OPENSSL_NO_SEED
	ALG("SEED-ECB", ossl_seed128ecb_functions),
	ALG("SEED-CBC:SEED", ossl_seed128cbc_functions),
	ALG("SEED-OFB:SEED-OFB128", ossl_seed128ofb128_functions),
	ALG("SEED-CFB:SEED-CFB128", ossl_seed128cfb128_functions),
	#endif /* OPENSSL_NO_SEED */
	#ifndef OPENSSL_NO_RC2
	ALG("RC2-ECB", ossl_rc2128ecb_functions),
	ALG("RC2-CBC:RC2:RC2-128", ossl_rc2128cbc_functions),
	ALG("RC2-40-CBC:RC2-40", ossl_rc240cbc_functions),
	ALG("RC2-64-CBC:RC2-64", ossl_rc264cbc_functions),
	ALG("RC2-CFB", ossl_rc2128cfb128_functions),
	ALG("RC2-OFB", ossl_rc2128ofb128_functions),
	#endif /* OPENSSL_NO_RC2 */
	#ifndef OPENSSL_NO_RC4
	ALG("RC4", ossl_rc4128_functions),
	ALG("RC4-40", ossl_rc440_functions),
	# ifndef OPENSSL_NO_MD5
	ALG("RC4-HMAC-MD5", ossl_rc4_hmac_ossl_md5_functions),
	# endif /* OPENSSL_NO_MD5 */
	#endif /* OPENSSL_NO_RC4 */
	#ifndef OPENSSL_NO_RC5
	ALG("RC5-ECB", ossl_rc5128ecb_functions),
	ALG("RC5-CBC:RC5", ossl_rc5128cbc_functions),
	ALG("RC5-OFB", ossl_rc5128ofb64_functions),
	ALG("RC5-CFB", ossl_rc5128cfb64_functions),
	#endif /* OPENSSL_NO_RC5 */
	#ifndef OPENSSL_NO_DES
	ALG("DESX-CBC:DESX", ossl_tdes_desx_cbc_functions),
	ALG("DES-ECB", ossl_des_ecb_functions),
	ALG("DES-CBC:DES", ossl_des_cbc_functions),
	ALG("DES-OFB", ossl_des_ofb64_functions),
	ALG("DES-CFB", ossl_des_cfb64_functions),
	ALG("DES-CFB1", ossl_des_cfb1_functions),
	ALG("DES-CFB8", ossl_des_cfb8_functions),
	#endif /* OPENSSL_NO_DES */
	{ NULL, NULL, NULL }
	};

	static const OSSL_ALGORITHM legacy_query(void provctx, int operation_id,
	int *no_cache)
	{
	*no_cache = 0;
	switch (operation_id) {
	case OSSL_OP_DIGEST:
	return legacy_digests;
	case OSSL_OP_CIPHER:
	return legacy_ciphers;
	}
	return NULL;
	}

	static void legacy_teardown(void *provctx)
	{
	OSSL_LIB_CTX_free(PROV_LIBCTX_OF(provctx));
	ossl_prov_ctx_free(provctx);
	}

	/* Functions we provide to the core */
	static const OSSL_DISPATCH legacy_dispatch_table[] = {
	{ OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))legacy_teardown },
	{ OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))legacy_gettable_params },
	{ OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))legacy_get_params },
	{ OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))legacy_query },
	{ 0, NULL }
	};

	int OSSL_provider_init(const OSSL_CORE_HANDLE *handle,
	const OSSL_DISPATCH *in,
	const OSSL_DISPATCH **out,
	void **provctx)
	{
	OSSL_FUNC_core_get_libctx_fn *c_get_libctx = NULL;
	OSSL_LIB_CTX *libctx = NULL;

	for (; in->function_id != 0; in++) {
	switch (in->function_id) {
	case OSSL_FUNC_CORE_GETTABLE_PARAMS:
	c_gettable_params = OSSL_FUNC_core_gettable_params(in);
	break;
	case OSSL_FUNC_CORE_GET_PARAMS:
	c_get_params = OSSL_FUNC_core_get_params(in);
	break;
	case OSSL_FUNC_CORE_GET_LIBCTX:
	c_get_libctx = OSSL_FUNC_core_get_libctx(in);
	break;
	/* Just ignore anything we don't understand */
	default:
	break;
	}
	}

	if (c_get_libctx == NULL)
	return 0;

	if ((*provctx = ossl_prov_ctx_new()) == NULL
	\|\| (libctx = OSSL_LIB_CTX_new()) == NULL) {
	OSSL_LIB_CTX_free(libctx);
	legacy_teardown(*provctx);
	*provctx = NULL;
	return 0;
	}
	ossl_prov_ctx_set0_libctx(*provctx, libctx);
	ossl_prov_ctx_set0_handle(*provctx, handle);

	*out = legacy_dispatch_table;

	return 1;
	}