92 lines
2.4 KiB
C
92 lines
2.4 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 *digest_table = NULL;
|
||
|
|
|
||
|
|
void ENGINE_unregister_digests(ENGINE *e)
|
||
|
|
{
|
||
|
|
engine_table_unregister(&digest_table, e);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void engine_unregister_all_digests(void)
|
||
|
|
{
|
||
|
|
engine_table_cleanup(&digest_table);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ENGINE_register_digests(ENGINE *e)
|
||
|
|
{
|
||
|
|
if (e->digests) {
|
||
|
|
const int *nids;
|
||
|
|
int num_nids = e->digests(e, NULL, &nids, 0);
|
||
|
|
if (num_nids > 0)
|
||
|
|
return engine_table_register(&digest_table,
|
||
|
|
engine_unregister_all_digests, e,
|
||
|
|
nids, num_nids, 0);
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ENGINE_register_all_digests(void)
|
||
|
|
{
|
||
|
|
ENGINE *e;
|
||
|
|
|
||
|
|
for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
|
||
|
|
ENGINE_register_digests(e);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ENGINE_set_default_digests(ENGINE *e)
|
||
|
|
{
|
||
|
|
if (e->digests) {
|
||
|
|
const int *nids;
|
||
|
|
int num_nids = e->digests(e, NULL, &nids, 0);
|
||
|
|
if (num_nids > 0)
|
||
|
|
return engine_table_register(&digest_table,
|
||
|
|
engine_unregister_all_digests, 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 digest 'nid'
|
||
|
|
*/
|
||
|
|
ENGINE *ENGINE_get_digest_engine(int nid)
|
||
|
|
{
|
||
|
|
return engine_table_select(&digest_table, nid);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Obtains a digest implementation from an ENGINE functional reference */
|
||
|
|
const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid)
|
||
|
|
{
|
||
|
|
const EVP_MD *ret;
|
||
|
|
ENGINE_DIGESTS_PTR fn = ENGINE_get_digests(e);
|
||
|
|
if (!fn || !fn(e, &ret, NULL, nid)) {
|
||
|
|
ENGINEerr(ENGINE_F_ENGINE_GET_DIGEST, ENGINE_R_UNIMPLEMENTED_DIGEST);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Gets the digest callback from an ENGINE structure */
|
||
|
|
ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e)
|
||
|
|
{
|
||
|
|
return e->digests;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Sets the digest callback in an ENGINE structure */
|
||
|
|
int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f)
|
||
|
|
{
|
||
|
|
e->digests = f;
|
||
|
|
return 1;
|
||
|
|
}
|