1/*
2 * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <openssl/err.h>
11#include <openssl/proverr.h>
12#include "prov/digestcommon.h"
13
14int ossl_digest_default_get_params(OSSL_PARAM params[], size_t blksz,
15                                   size_t paramsz, unsigned long flags)
16{
17    OSSL_PARAM *p = NULL;
18
19    p = OSSL_PARAM_locate(params, OSSL_DIGEST_PARAM_BLOCK_SIZE);
20    if (p != NULL && !OSSL_PARAM_set_size_t(p, blksz)) {
21        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
22        return 0;
23    }
24    p = OSSL_PARAM_locate(params, OSSL_DIGEST_PARAM_SIZE);
25    if (p != NULL && !OSSL_PARAM_set_size_t(p, paramsz)) {
26        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
27        return 0;
28    }
29    p = OSSL_PARAM_locate(params, OSSL_DIGEST_PARAM_XOF);
30    if (p != NULL
31        && !OSSL_PARAM_set_int(p, (flags & PROV_DIGEST_FLAG_XOF) != 0)) {
32        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
33        return 0;
34    }
35    p = OSSL_PARAM_locate(params, OSSL_DIGEST_PARAM_ALGID_ABSENT);
36    if (p != NULL
37        && !OSSL_PARAM_set_int(p, (flags & PROV_DIGEST_FLAG_ALGID_ABSENT) != 0)) {
38        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
39        return 0;
40    }
41    return 1;
42}
43
44static const OSSL_PARAM digest_default_known_gettable_params[] = {
45    OSSL_PARAM_size_t(OSSL_DIGEST_PARAM_BLOCK_SIZE, NULL),
46    OSSL_PARAM_size_t(OSSL_DIGEST_PARAM_SIZE, NULL),
47    OSSL_PARAM_int(OSSL_DIGEST_PARAM_XOF, NULL),
48    OSSL_PARAM_int(OSSL_DIGEST_PARAM_ALGID_ABSENT, NULL),
49    OSSL_PARAM_END
50};
51const OSSL_PARAM *ossl_digest_default_gettable_params(void *provctx)
52{
53    return digest_default_known_gettable_params;
54}
55