1 /*
2 * Copyright (c) 2024 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 <filesystem>
17
18 #include "app_clone_key_manager.h"
19 #include "crypto/key_manager.h"
20 #include "utils/storage_radar.h"
21 #include "utils/string_utils.h"
22 #include "storage_service_errno.h"
23 #include "storage_service_log.h"
24
25 using namespace OHOS::StorageService;
26 namespace OHOS {
27 namespace StorageDaemon {
28 constexpr const char *NEED_RESTORE_PATH = "/data/service/el1/public/storage_daemon/sd/el1/%d/latest/need_restore";
29
ActiveAppCloneUserKey(unsigned int & failedUserId)30 int AppCloneKeyManager::ActiveAppCloneUserKey(unsigned int &failedUserId)
31 {
32 for (int userId = StorageService::START_APP_CLONE_USER_ID;
33 userId < StorageService::MAX_APP_CLONE_USER_ID; userId++) {
34 std::string keyPath = StringPrintf(NEED_RESTORE_PATH, userId);
35 std::error_code errCode;
36 if (!std::filesystem::exists(keyPath, errCode)) {
37 LOGD("restore path do not exist, errCode %{public}d", errCode.value());
38 continue;
39 }
40 int ret = KeyManager::GetInstance().ActiveCeSceSeceUserKey(userId, EL2_KEY, {}, {});
41 if (ret != E_OK) {
42 failedUserId = static_cast<unsigned int>(userId);
43 LOGE("Active app clone user %{public}u el2 failed, ret=%{public}d.", userId, ret);
44 StorageRadar::ReportActiveUserKey("ActiveUserKey::ActiveAppCloneUserKey", userId, ret, "EL2");
45 return ret;
46 }
47 ret = KeyManager::GetInstance().ActiveCeSceSeceUserKey(userId, EL3_KEY, {}, {});
48 if (ret != E_OK) {
49 failedUserId = static_cast<unsigned int>(userId);
50 LOGE("Active app clone user %{public}u el3 failed, ret=%{public}d.", userId, ret);
51 StorageRadar::ReportActiveUserKey("ActiveUserKey::ActiveAppCloneUserKey", userId, ret, "EL3");
52 return ret;
53 }
54 ret = KeyManager::GetInstance().ActiveCeSceSeceUserKey(userId, EL4_KEY, {}, {});
55 if (ret != E_OK) {
56 failedUserId = static_cast<unsigned int>(userId);
57 LOGE("Active app clone user %{public}u el4 failed, ret=%{public}d.", userId, ret);
58 StorageRadar::ReportActiveUserKey("ActiveUserKey::ActiveAppCloneUserKey", userId, ret, "EL4");
59 return ret;
60 }
61 LOGI("ActiveAppCloneUserKey::userkey %{public}u activated.", userId);
62 return E_OK;
63 }
64 LOGE("ActiveAppCloneUserKey::Did not find app clone userId in valid range = {219 ~ 239}.");
65 return E_NOT_SUPPORT;
66 }
67 } // namespace StorageDaemon
68 } // namespace OHOS