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 
ossl_digest_default_get_params(OSSL_PARAM params[],size_t blksz,size_t paramsz,unsigned long flags)14 int 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 
44 static 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 };
ossl_digest_default_gettable_params(void * provctx)51 const OSSL_PARAM *ossl_digest_default_gettable_params(void *provctx)
52 {
53     return digest_default_known_gettable_params;
54 }
55