1 /*
2 * Copyright (C) 2021 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 "protocol_common.h"
17 #include "device_auth_defines.h"
18 #include "hc_log.h"
19 #include "hc_types.h"
20 #include "string_util.h"
21
FreeAndCleanKey(Uint8Buff * key)22 void FreeAndCleanKey(Uint8Buff *key)
23 {
24 if (key == NULL || key->val == NULL) {
25 return;
26 }
27 (void)memset_s(key->val, key->length, 0, key->length);
28 HcFree(key->val);
29 key->val = NULL;
30 key->length = 0;
31 }
32
InitSingleParam(Uint8Buff * param,uint32_t len)33 int32_t InitSingleParam(Uint8Buff *param, uint32_t len)
34 {
35 if (param == NULL) {
36 LOGE("Param is null.");
37 return HC_ERR_NULL_PTR;
38 }
39 if (param->val != NULL) {
40 (void)memset_s(param->val, param->length, 0, param->length);
41 HcFree(param->val);
42 }
43 param->length = len;
44 param->val = (uint8_t *)HcMalloc(param->length, 0);
45 if (param->val == NULL) {
46 LOGE("Malloc for param failed.");
47 return HC_ERR_ALLOC_MEMORY;
48 }
49 return HC_SUCCESS;
50 }