openssl/crypto/engine/tb_dsa.c

73 lines
1.8 KiB
C

/*
* Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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 "eng_local.h"
static ENGINE_TABLE *dsa_table = NULL;
static const int dummy_nid = 1;
void ENGINE_unregister_DSA(ENGINE *e)
{
engine_table_unregister(&dsa_table, e);
}
static void engine_unregister_all_DSA(void)
{
engine_table_cleanup(&dsa_table);
}
int ENGINE_register_DSA(ENGINE *e)
{
if (e->dsa_meth)
return engine_table_register(&dsa_table,
engine_unregister_all_DSA, e, &dummy_nid,
1, 0);
return 1;
}
void ENGINE_register_all_DSA(void)
{
ENGINE *e;
for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
ENGINE_register_DSA(e);
}
int ENGINE_set_default_DSA(ENGINE *e)
{
if (e->dsa_meth)
return engine_table_register(&dsa_table,
engine_unregister_all_DSA, e, &dummy_nid,
1, 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).
*/
ENGINE *ENGINE_get_default_DSA(void)
{
return engine_table_select(&dsa_table, dummy_nid);
}
/* Obtains an DSA implementation from an ENGINE functional reference */
const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e)
{
return e->dsa_meth;
}
/* Sets an DSA implementation in an ENGINE structure */
int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth)
{
e->dsa_meth = dsa_meth;
return 1;
}