1 /*
2 * Copyright (C) 2023 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 "permission_util.h"
17
18 #include "accesstoken_kit.h"
19 #include "data_storage_log_wrapper.h"
20 #include "ipc_skeleton.h"
21
22 namespace OHOS {
23 namespace Telephony {
24 using namespace Security::AccessToken;
25
26 /**
27 * @brief Permission check by callingUid.
28 * @param permissionName permission name.
29 * @return Returns true on success, false on failure.
30 */
CheckPermission(const std::string & permissionName)31 bool PermissionUtil::CheckPermission(const std::string &permissionName)
32 {
33 if (permissionName.empty()) {
34 DATA_STORAGE_LOGD("permission check failed, permission name is empty.");
35 return false;
36 }
37
38 auto callerToken = IPCSkeleton::GetCallingTokenID();
39 int result = AccessTokenKit::VerifyAccessToken(callerToken, permissionName);
40 if (result != PermissionState::PERMISSION_GRANTED) {
41 DATA_STORAGE_LOGD("permission check failed, permission:%{public}s, callerToken:%{public}u",
42 permissionName.c_str(), callerToken);
43 return false;
44 }
45 return true;
46 }
47 } // namespace Telephony
48 } // namespace OHOS
49