1 /*
2  * Copyright (c) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include "dslm_crypto.h"
17 
18 #include <stddef.h>
19 #include <stdint.h>
20 
21 #include "openssl/rand.h"
22 
GenerateRandom(RandomValue * rand,uint32_t length)23 void GenerateRandom(RandomValue *rand, uint32_t length)
24 {
25     if (rand == NULL) {
26         return;
27     }
28     rand->length = (length > RANDOM_MAX_LEN) ? RANDOM_MAX_LEN : length;
29 #ifdef L2_STANDARD
30     RAND_bytes(&rand->value[0], rand->length);
31 #else
32     rand->value[0] = 1;
33 #endif
34 }
35