kopia lustrzana https://github.com/ryukoposting/Signal-Android
168 wiersze
5.2 KiB
C
168 wiersze
5.2 KiB
C
/* ====================================================================
|
|
* Copyright (c) 2006 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/evp.h>
|
|
|
|
/* If this symbol is defined then ENGINE_get_pkey_meth_engine(), the function
|
|
* that is used by EVP to hook in pkey_meth code and cache defaults (etc), will
|
|
* display brief debugging summaries to stderr with the 'nid'. */
|
|
/* #define ENGINE_PKEY_METH_DEBUG */
|
|
|
|
static ENGINE_TABLE *pkey_meth_table = NULL;
|
|
|
|
void ENGINE_unregister_pkey_meths(ENGINE *e)
|
|
{
|
|
engine_table_unregister(&pkey_meth_table, e);
|
|
}
|
|
|
|
static void engine_unregister_all_pkey_meths(void)
|
|
{
|
|
engine_table_cleanup(&pkey_meth_table);
|
|
}
|
|
|
|
int ENGINE_register_pkey_meths(ENGINE *e)
|
|
{
|
|
if(e->pkey_meths)
|
|
{
|
|
const int *nids;
|
|
int num_nids = e->pkey_meths(e, NULL, &nids, 0);
|
|
if(num_nids > 0)
|
|
return engine_table_register(&pkey_meth_table,
|
|
engine_unregister_all_pkey_meths, e, nids,
|
|
num_nids, 0);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void ENGINE_register_all_pkey_meths()
|
|
{
|
|
ENGINE *e;
|
|
|
|
for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))
|
|
ENGINE_register_pkey_meths(e);
|
|
}
|
|
|
|
int ENGINE_set_default_pkey_meths(ENGINE *e)
|
|
{
|
|
if(e->pkey_meths)
|
|
{
|
|
const int *nids;
|
|
int num_nids = e->pkey_meths(e, NULL, &nids, 0);
|
|
if(num_nids > 0)
|
|
return engine_table_register(&pkey_meth_table,
|
|
engine_unregister_all_pkey_meths, e, nids,
|
|
num_nids, 1);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* Exposed API function to get a functional reference from the implementation
|
|
* table (ie. try to get a functional reference from the tabled structural
|
|
* references) for a given pkey_meth 'nid' */
|
|
ENGINE *ENGINE_get_pkey_meth_engine(int nid)
|
|
{
|
|
return engine_table_select(&pkey_meth_table, nid);
|
|
}
|
|
|
|
/* Obtains a pkey_meth implementation from an ENGINE functional reference */
|
|
const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid)
|
|
{
|
|
EVP_PKEY_METHOD *ret;
|
|
ENGINE_PKEY_METHS_PTR fn = ENGINE_get_pkey_meths(e);
|
|
if(!fn || !fn(e, &ret, NULL, nid))
|
|
{
|
|
ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_METH,
|
|
ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD);
|
|
return NULL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* Gets the pkey_meth callback from an ENGINE structure */
|
|
ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e)
|
|
{
|
|
return e->pkey_meths;
|
|
}
|
|
|
|
/* Sets the pkey_meth callback in an ENGINE structure */
|
|
int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f)
|
|
{
|
|
e->pkey_meths = f;
|
|
return 1;
|
|
}
|
|
|
|
/* Internal function to free up EVP_PKEY_METHOD structures before an
|
|
* ENGINE is destroyed
|
|
*/
|
|
|
|
void engine_pkey_meths_free(ENGINE *e)
|
|
{
|
|
int i;
|
|
EVP_PKEY_METHOD *pkm;
|
|
if (e->pkey_meths)
|
|
{
|
|
const int *pknids;
|
|
int npknids;
|
|
npknids = e->pkey_meths(e, NULL, &pknids, 0);
|
|
for (i = 0; i < npknids; i++)
|
|
{
|
|
if (e->pkey_meths(e, &pkm, NULL, pknids[i]))
|
|
{
|
|
EVP_PKEY_meth_free(pkm);
|
|
}
|
|
}
|
|
}
|
|
}
|