src/parsec/disk-image/parsec/parsec-benchmark/pkgs/libs/ssl/src/crypto/engine/eng_lib.c - public/gem5-resources - Git at Google

 /* crypto/engine/eng_lib.c */
 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
  * project 2000.
  */
 /* ====================================================================
  * Copyright (c) 1999-2001 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * 3. All advertising materials mentioning features or use of this
  *    software must display the following acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  *
  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  *    endorse or promote products derived from this software without
  *    prior written permission. For written permission, please contact
  *    licensing@OpenSSL.org.
  *
  * 5. Products derived from this software may not be called "OpenSSL"
  *    nor may "OpenSSL" appear in their names without prior written
  *    permission of the OpenSSL Project.
  *
  * 6. Redistributions of any form whatsoever must retain the following
  *    acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  *
  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  * ====================================================================
  *
  * This product includes cryptographic software written by Eric Young
  * (eay@cryptsoft.com).  This product includes software written by Tim
  * Hudson (tjh@cryptsoft.com).
  *
  */

 #include "eng_int.h"
 #include <openssl/rand.h>

 /* The "new"/"free" stuff first */

 ENGINE *ENGINE_new(void)
 	{
 	ENGINE *ret;

 	ret = (ENGINE *)OPENSSL_malloc(sizeof(ENGINE));
 	if(ret == NULL)
 		{
 		ENGINEerr(ENGINE_F_ENGINE_NEW, ERR_R_MALLOC_FAILURE);
 		return NULL;
 		}
 	memset(ret, 0, sizeof(ENGINE));
 	ret->struct_ref = 1;
 	engine_ref_debug(ret, 0, 1)
 	CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ENGINE, ret, &ret->ex_data);
 	return ret;
 	}

 /* Placed here (close proximity to ENGINE_new) so that modifications to the
  * elements of the ENGINE structure are more likely to be caught and changed
  * here. */
 void engine_set_all_null(ENGINE *e)
 	{
 	e->id = NULL;
 	e->name = NULL;
 	e->rsa_meth = NULL;
 	e->dsa_meth = NULL;
 	e->dh_meth = NULL;
 	e->rand_meth = NULL;
 	e->store_meth = NULL;
 	e->ciphers = NULL;
 	e->digests = NULL;
 	e->destroy = NULL;
 	e->init = NULL;
 	e->finish = NULL;
 	e->ctrl = NULL;
 	e->load_privkey = NULL;
 	e->load_pubkey = NULL;
 	e->cmd_defns = NULL;
 	e->flags = 0;
 	}

 int engine_free_util(ENGINE *e, int locked)
 	{
 	int i;

 	if(e == NULL)
 		{
 		ENGINEerr(ENGINE_F_ENGINE_FREE_UTIL,
 			ERR_R_PASSED_NULL_PARAMETER);
 		return 0;
 		}
 	if(locked)
 		i = CRYPTO_add(&e->struct_ref,-1,CRYPTO_LOCK_ENGINE);
 	else
 		i = --e->struct_ref;
 	engine_ref_debug(e, 0, -1)
 	if (i > 0) return 1;
 #ifdef REF_CHECK
 	if (i < 0)
 		{
 		fprintf(stderr,"ENGINE_free, bad structural reference count\n");
 		abort();
 		}
 #endif
 	/* Give the ENGINE a chance to do any structural cleanup corresponding
 	 * to allocation it did in its constructor (eg. unload error strings) */
 	if(e->destroy)
 		e->destroy(e);
 	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ENGINE, e, &e->ex_data);
 	OPENSSL_free(e);
 	return 1;
 	}

 int ENGINE_free(ENGINE *e)
 	{
 	return engine_free_util(e, 1);
 	}

 /* Cleanup stuff */

 /* ENGINE_cleanup() is coded such that anything that does work that will need
  * cleanup can register a "cleanup" callback here. That way we don't get linker
  * bloat by referring to all *possible* cleanups, but any linker bloat into code
  * "X" will cause X's cleanup function to end up here. */
 static STACK_OF(ENGINE_CLEANUP_ITEM) *cleanup_stack = NULL;
 static int int_cleanup_check(int create)
 	{
 	if(cleanup_stack) return 1;
 	if(!create) return 0;
 	cleanup_stack = sk_ENGINE_CLEANUP_ITEM_new_null();
 	return (cleanup_stack ? 1 : 0);
 	}
 static ENGINE_CLEANUP_ITEM *int_cleanup_item(ENGINE_CLEANUP_CB *cb)
 	{
 	ENGINE_CLEANUP_ITEM *item = OPENSSL_malloc(sizeof(
 					ENGINE_CLEANUP_ITEM));
 	if(!item) return NULL;
 	item->cb = cb;
 	return item;
 	}
 void engine_cleanup_add_first(ENGINE_CLEANUP_CB *cb)
 	{
 	ENGINE_CLEANUP_ITEM *item;
 	if(!int_cleanup_check(1)) return;
 	item = int_cleanup_item(cb);
 	if(item)
 		sk_ENGINE_CLEANUP_ITEM_insert(cleanup_stack, item, 0);
 	}
 void engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb)
 	{
 	ENGINE_CLEANUP_ITEM *item;
 	if(!int_cleanup_check(1)) return;
 	item = int_cleanup_item(cb);
 	if(item)
 		sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item);
 	}
 /* The API function that performs all cleanup */
 static void engine_cleanup_cb_free(ENGINE_CLEANUP_ITEM *item)
 	{
 	(*(item->cb))();
 	OPENSSL_free(item);
 	}
 void ENGINE_cleanup(void)
 	{
 	if(int_cleanup_check(0))
 		{
 		sk_ENGINE_CLEANUP_ITEM_pop_free(cleanup_stack,
 			engine_cleanup_cb_free);
 		cleanup_stack = NULL;
 		}
 	/* FIXME: This should be handled (somehow) through RAND, eg. by it
 	 * registering a cleanup callback. */
 	RAND_set_rand_method(NULL);
 	}

 /* Now the "ex_data" support */

 int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
 		CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
 	{
 	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ENGINE, argl, argp,
 			new_func, dup_func, free_func);
 	}

 int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg)
 	{
 	return(CRYPTO_set_ex_data(&e->ex_data, idx, arg));
 	}

 void *ENGINE_get_ex_data(const ENGINE *e, int idx)
 	{
 	return(CRYPTO_get_ex_data(&e->ex_data, idx));
 	}

 /* Functions to get/set an ENGINE's elements - mainly to avoid exposing the
  * ENGINE structure itself. */

 int ENGINE_set_id(ENGINE *e, const char *id)
 	{
 	if(id == NULL)
 		{
 		ENGINEerr(ENGINE_F_ENGINE_SET_ID,
 			ERR_R_PASSED_NULL_PARAMETER);
 		return 0;
 		}
 	e->id = id;
 	return 1;
 	}

 int ENGINE_set_name(ENGINE *e, const char *name)
 	{
 	if(name == NULL)
 		{
 		ENGINEerr(ENGINE_F_ENGINE_SET_NAME,
 			ERR_R_PASSED_NULL_PARAMETER);
 		return 0;
 		}
 	e->name = name;
 	return 1;
 	}

 int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f)
 	{
 	e->destroy = destroy_f;
 	return 1;
 	}

 int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f)
 	{
 	e->init = init_f;
 	return 1;
 	}

 int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f)
 	{
 	e->finish = finish_f;
 	return 1;
 	}

 int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f)
 	{
 	e->ctrl = ctrl_f;
 	return 1;
 	}

 int ENGINE_set_flags(ENGINE *e, int flags)
 	{
 	e->flags = flags;
 	return 1;
 	}

 int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns)
 	{
 	e->cmd_defns = defns;
 	return 1;
 	}

 const char *ENGINE_get_id(const ENGINE *e)
 	{
 	return e->id;
 	}

 const char *ENGINE_get_name(const ENGINE *e)
 	{
 	return e->name;
 	}

 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e)
 	{
 	return e->destroy;
 	}

 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e)
 	{
 	return e->init;
 	}

 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e)
 	{
 	return e->finish;
 	}

 ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e)
 	{
 	return e->ctrl;
 	}

 int ENGINE_get_flags(const ENGINE *e)
 	{
 	return e->flags;
 	}

 const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e)
 	{
 	return e->cmd_defns;
 	}

 /* eng_lib.o is pretty much linked into anything that touches ENGINE already, so
  * put the "static_state" hack here. */

 static int internal_static_hack = 0;

 void *ENGINE_get_static_state(void)
 	{
 	return &internal_static_hack;
 	}
	/* crypto/engine/eng_lib.c */
	/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
	* project 2000.
	*/
	/* ====================================================================
	* Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	*
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in
	* the documentation and/or other materials provided with the
	* distribution.
	*
	* 3. All advertising materials mentioning features or use of this
	* software must display the following acknowledgment:
	* "This product includes software developed by the OpenSSL Project
	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	*
	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	* endorse or promote products derived from this software without
	* prior written permission. For written permission, please contact
	* licensing@OpenSSL.org.
	*
	* 5. Products derived from this software may not be called "OpenSSL"
	* nor may "OpenSSL" appear in their names without prior written
	* permission of the OpenSSL Project.
	*
	* 6. Redistributions of any form whatsoever must retain the following
	* acknowledgment:
	* "This product includes software developed by the OpenSSL Project
	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	*
	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	* OF THE POSSIBILITY OF SUCH DAMAGE.
	* ====================================================================
	*
	* This product includes cryptographic software written by Eric Young
	* (eay@cryptsoft.com). This product includes software written by Tim
	* Hudson (tjh@cryptsoft.com).
	*
	*/

	#include "eng_int.h"
	#include <openssl/rand.h>

	/* The "new"/"free" stuff first */

	ENGINE *ENGINE_new(void)
	{
	ENGINE *ret;

	ret = (ENGINE *)OPENSSL_malloc(sizeof(ENGINE));
	if(ret == NULL)
	{
	ENGINEerr(ENGINE_F_ENGINE_NEW, ERR_R_MALLOC_FAILURE);
	return NULL;
	}
	memset(ret, 0, sizeof(ENGINE));
	ret->struct_ref = 1;
	engine_ref_debug(ret, 0, 1)
	CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ENGINE, ret, &ret->ex_data);
	return ret;
	}

	/* Placed here (close proximity to ENGINE_new) so that modifications to the
	* elements of the ENGINE structure are more likely to be caught and changed
	* here. */
	void engine_set_all_null(ENGINE *e)
	{
	e->id = NULL;
	e->name = NULL;
	e->rsa_meth = NULL;
	e->dsa_meth = NULL;
	e->dh_meth = NULL;
	e->rand_meth = NULL;
	e->store_meth = NULL;
	e->ciphers = NULL;
	e->digests = NULL;
	e->destroy = NULL;
	e->init = NULL;
	e->finish = NULL;
	e->ctrl = NULL;
	e->load_privkey = NULL;
	e->load_pubkey = NULL;
	e->cmd_defns = NULL;
	e->flags = 0;
	}

	int engine_free_util(ENGINE *e, int locked)
	{
	int i;

	if(e == NULL)
	{
	ENGINEerr(ENGINE_F_ENGINE_FREE_UTIL,
	ERR_R_PASSED_NULL_PARAMETER);
	return 0;
	}
	if(locked)
	i = CRYPTO_add(&e->struct_ref,-1,CRYPTO_LOCK_ENGINE);
	else
	i = --e->struct_ref;
	engine_ref_debug(e, 0, -1)
	if (i > 0) return 1;
	#ifdef REF_CHECK
	if (i < 0)
	{
	fprintf(stderr,"ENGINE_free, bad structural reference count\n");
	abort();
	}
	#endif
	/* Give the ENGINE a chance to do any structural cleanup corresponding
	* to allocation it did in its constructor (eg. unload error strings) */
	if(e->destroy)
	e->destroy(e);
	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ENGINE, e, &e->ex_data);
	OPENSSL_free(e);
	return 1;
	}

	int ENGINE_free(ENGINE *e)
	{
	return engine_free_util(e, 1);
	}

	/* Cleanup stuff */

	/* ENGINE_cleanup() is coded such that anything that does work that will need
	* cleanup can register a "cleanup" callback here. That way we don't get linker
	* bloat by referring to all possible cleanups, but any linker bloat into code
	* "X" will cause X's cleanup function to end up here. */
	static STACK_OF(ENGINE_CLEANUP_ITEM) *cleanup_stack = NULL;
	static int int_cleanup_check(int create)
	{
	if(cleanup_stack) return 1;
	if(!create) return 0;
	cleanup_stack = sk_ENGINE_CLEANUP_ITEM_new_null();
	return (cleanup_stack ? 1 : 0);
	}
	static ENGINE_CLEANUP_ITEM int_cleanup_item(ENGINE_CLEANUP_CB cb)
	{
	ENGINE_CLEANUP_ITEM *item = OPENSSL_malloc(sizeof(
	ENGINE_CLEANUP_ITEM));
	if(!item) return NULL;
	item->cb = cb;
	return item;
	}
	void engine_cleanup_add_first(ENGINE_CLEANUP_CB *cb)
	{
	ENGINE_CLEANUP_ITEM *item;
	if(!int_cleanup_check(1)) return;
	item = int_cleanup_item(cb);
	if(item)
	sk_ENGINE_CLEANUP_ITEM_insert(cleanup_stack, item, 0);
	}
	void engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb)
	{
	ENGINE_CLEANUP_ITEM *item;
	if(!int_cleanup_check(1)) return;
	item = int_cleanup_item(cb);
	if(item)
	sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item);
	}
	/* The API function that performs all cleanup */
	static void engine_cleanup_cb_free(ENGINE_CLEANUP_ITEM *item)
	{
	(*(item->cb))();
	OPENSSL_free(item);
	}
	void ENGINE_cleanup(void)
	{
	if(int_cleanup_check(0))
	{
	sk_ENGINE_CLEANUP_ITEM_pop_free(cleanup_stack,
	engine_cleanup_cb_free);
	cleanup_stack = NULL;
	}
	/* FIXME: This should be handled (somehow) through RAND, eg. by it
	* registering a cleanup callback. */
	RAND_set_rand_method(NULL);
	}

	/* Now the "ex_data" support */

	int ENGINE_get_ex_new_index(long argl, void argp, CRYPTO_EX_new new_func,
	CRYPTO_EX_dup dup_func, CRYPTO_EX_free free_func)
	{
	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ENGINE, argl, argp,
	new_func, dup_func, free_func);
	}

	int ENGINE_set_ex_data(ENGINE e, int idx, void arg)
	{
	return(CRYPTO_set_ex_data(&e->ex_data, idx, arg));
	}

	void ENGINE_get_ex_data(const ENGINE e, int idx)
	{
	return(CRYPTO_get_ex_data(&e->ex_data, idx));
	}

	/* Functions to get/set an ENGINE's elements - mainly to avoid exposing the
	* ENGINE structure itself. */

	int ENGINE_set_id(ENGINE e, const char id)
	{
	if(id == NULL)
	{
	ENGINEerr(ENGINE_F_ENGINE_SET_ID,
	ERR_R_PASSED_NULL_PARAMETER);
	return 0;
	}
	e->id = id;
	return 1;
	}

	int ENGINE_set_name(ENGINE e, const char name)
	{
	if(name == NULL)
	{
	ENGINEerr(ENGINE_F_ENGINE_SET_NAME,
	ERR_R_PASSED_NULL_PARAMETER);
	return 0;
	}
	e->name = name;
	return 1;
	}

	int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f)
	{
	e->destroy = destroy_f;
	return 1;
	}

	int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f)
	{
	e->init = init_f;
	return 1;
	}

	int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f)
	{
	e->finish = finish_f;
	return 1;
	}

	int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f)
	{
	e->ctrl = ctrl_f;
	return 1;
	}

	int ENGINE_set_flags(ENGINE *e, int flags)
	{
	e->flags = flags;
	return 1;
	}

	int ENGINE_set_cmd_defns(ENGINE e, const ENGINE_CMD_DEFN defns)
	{
	e->cmd_defns = defns;
	return 1;
	}

	const char ENGINE_get_id(const ENGINE e)
	{
	return e->id;
	}

	const char ENGINE_get_name(const ENGINE e)
	{
	return e->name;
	}

	ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e)
	{
	return e->destroy;
	}

	ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e)
	{
	return e->init;
	}

	ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e)
	{
	return e->finish;
	}

	ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e)
	{
	return e->ctrl;
	}

	int ENGINE_get_flags(const ENGINE *e)
	{
	return e->flags;
	}

	const ENGINE_CMD_DEFN ENGINE_get_cmd_defns(const ENGINE e)
	{
	return e->cmd_defns;
	}

	/* eng_lib.o is pretty much linked into anything that touches ENGINE already, so
	* put the "static_state" hack here. */

	static int internal_static_hack = 0;

	void *ENGINE_get_static_state(void)
	{
	return &internal_static_hack;
	}