eng_lib.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/* 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
* 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 "cryptlib.h"
#include "eng_int.h"
/* The "new"/"free" stuff first */
ENGINE *ENGINE_new(void)
{
{
return NULL;
}
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->load_privkey = NULL;
e->load_pubkey = NULL;
e->flags = 0;
}
{
int i;
if(e == NULL)
{
return 0;
}
if(locked)
else
i = --e->struct_ref;
engine_ref_debug(e, 0, -1)
if (i > 0) return 1;
#ifdef REF_CHECK
if (i < 0)
{
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);
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 int int_cleanup_check(int create)
{
if(cleanup_stack) return 1;
if(!create) return 0;
return (cleanup_stack ? 1 : 0);
}
{
return item;
}
{
if(!int_cleanup_check(1)) return;
if(item)
}
{
if(!int_cleanup_check(1)) return;
if(item)
}
/* The API function that performs all cleanup */
{
}
void ENGINE_cleanup(void)
{
if(int_cleanup_check(0))
{
}
/* FIXME: This should be handled (somehow) through RAND, eg. by it
* registering a cleanup callback. */
}
/* Now the "ex_data" support */
{
}
{
}
{
}
* ENGINE structure itself. */
{
{
return 0;
}
return 1;
}
{
{
return 0;
}
return 1;
}
{
return 1;
}
{
return 1;
}
{
return 1;
}
{
return 1;
}
{
return 1;
}
{
return 1;
}
const char *ENGINE_get_id(const ENGINE *e)
{
return e->id;
}
const char *ENGINE_get_name(const ENGINE *e)
{
return e->name;
}
{
return e->destroy;
}
{
return e->init;
}
{
return e->finish;
}
{
return e->ctrl;
}
int ENGINE_get_flags(const ENGINE *e)
{
return e->flags;
}
{
return e->cmd_defns;
}