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      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 
     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 };
     51 const OSSL_PARAM *ossl_digest_default_gettable_params(void *provctx)
     52 {
     53     return digest_default_known_gettable_params;
     54 }
     55