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 "token_sync_manager_stub.h"
17
18 #include "accesstoken_log.h"
19 #include "access_token_error.h"
20 #include "hap_token_info_for_sync_parcel.h"
21 #include "ipc_skeleton.h"
22 #include "native_token_info_for_sync_parcel.h"
23 #include "string_ex.h"
24
25 namespace OHOS {
26 namespace Security {
27 namespace AccessToken {
28 namespace {
29 static constexpr OHOS::HiviewDFX::HiLogLabel LABEL = {LOG_CORE, SECURITY_DOMAIN_ACCESSTOKEN, "TokenSyncManagerStub"};
30 #ifndef ATM_BUILD_VARIANT_USER_ENABLE
31 static const int32_t ROOT_UID = 0;
32 #endif
33 }
34
OnRemoteRequest(uint32_t code,MessageParcel & data,MessageParcel & reply,MessageOption & option)35 int32_t TokenSyncManagerStub::OnRemoteRequest(
36 uint32_t code, MessageParcel& data, MessageParcel& reply, MessageOption& option)
37 {
38 ACCESSTOKEN_LOG_INFO(LABEL, "%{public}s called, code: %{public}d", __func__, code);
39 std::u16string descriptor = data.ReadInterfaceToken();
40 if (descriptor != ITokenSyncManager::GetDescriptor()) {
41 ACCESSTOKEN_LOG_ERROR(LABEL, "Get unexpect descriptor: %{public}s", Str16ToStr8(descriptor).c_str());
42 return ERROR_IPC_REQUEST_FAIL;
43 }
44 switch (code) {
45 case static_cast<uint32_t>(TokenSyncInterfaceCode::GET_REMOTE_HAP_TOKEN_INFO):
46 GetRemoteHapTokenInfoInner(data, reply);
47 break;
48 case static_cast<uint32_t>(TokenSyncInterfaceCode::DELETE_REMOTE_HAP_TOKEN_INFO):
49 DeleteRemoteHapTokenInfoInner(data, reply);
50 break;
51 case static_cast<uint32_t>(TokenSyncInterfaceCode::UPDATE_REMOTE_HAP_TOKEN_INFO):
52 UpdateRemoteHapTokenInfoInner(data, reply);
53 break;
54 default:
55 return IPCObjectStub::OnRemoteRequest(code, data, reply, option);
56 }
57 return NO_ERROR;
58 }
59
IsNativeProcessCalling() const60 bool TokenSyncManagerStub::IsNativeProcessCalling() const
61 {
62 AccessTokenID tokenCaller = IPCSkeleton::GetCallingTokenID();
63 uint32_t type = (reinterpret_cast<AccessTokenIDInner *>(&tokenCaller))->type;
64 ACCESSTOKEN_LOG_DEBUG(LABEL, "Calling type: %{public}d", type);
65 return type == TOKEN_NATIVE;
66 }
67
IsRootCalling() const68 bool TokenSyncManagerStub::IsRootCalling() const
69 {
70 #ifndef ATM_BUILD_VARIANT_USER_ENABLE
71 int callingUid = IPCSkeleton::GetCallingUid();
72 ACCESSTOKEN_LOG_DEBUG(LABEL, "Calling uid: %{public}d", callingUid);
73 return callingUid == ROOT_UID;
74 #else
75 return false;
76 #endif
77 }
78
GetRemoteHapTokenInfoInner(MessageParcel & data,MessageParcel & reply)79 void TokenSyncManagerStub::GetRemoteHapTokenInfoInner(MessageParcel& data, MessageParcel& reply)
80 {
81 if (!IsRootCalling() && !IsNativeProcessCalling()) {
82 ACCESSTOKEN_LOG_ERROR(LABEL, "%{public}s called, permission denied", __func__);
83 reply.WriteInt32(ERR_IDENTITY_CHECK_FAILED);
84 return;
85 }
86
87 std::string deviceID = data.ReadString();
88 AccessTokenID tokenID = data.ReadUint32();
89
90 HapTokenInfoForSync tokenInfo;
91 int result = this->GetRemoteHapTokenInfo(deviceID, tokenID);
92 reply.WriteInt32(result);
93 }
94
DeleteRemoteHapTokenInfoInner(MessageParcel & data,MessageParcel & reply)95 void TokenSyncManagerStub::DeleteRemoteHapTokenInfoInner(MessageParcel& data, MessageParcel& reply)
96 {
97 if (!IsRootCalling() && !IsNativeProcessCalling()) {
98 ACCESSTOKEN_LOG_ERROR(LABEL, "%{public}s called, permission denied", __func__);
99 reply.WriteInt32(ERR_IDENTITY_CHECK_FAILED);
100 return;
101 }
102 AccessTokenID tokenID = data.ReadUint32();
103 int result = this->DeleteRemoteHapTokenInfo(tokenID);
104 reply.WriteInt32(result);
105 }
106
UpdateRemoteHapTokenInfoInner(MessageParcel & data,MessageParcel & reply)107 void TokenSyncManagerStub::UpdateRemoteHapTokenInfoInner(MessageParcel& data, MessageParcel& reply)
108 {
109 if (!IsRootCalling() && !IsNativeProcessCalling()) {
110 ACCESSTOKEN_LOG_ERROR(LABEL, "%{public}s called, permission denied", __func__);
111 reply.WriteInt32(ERR_IDENTITY_CHECK_FAILED);
112 return;
113 }
114
115 sptr<HapTokenInfoForSyncParcel> tokenInfoParcelPtr = data.ReadParcelable<HapTokenInfoForSyncParcel>();
116 int result = RET_FAILED;
117 if (tokenInfoParcelPtr != nullptr) {
118 result = this->UpdateRemoteHapTokenInfo(tokenInfoParcelPtr->hapTokenInfoForSyncParams);
119 }
120 reply.WriteInt32(result);
121 }
122 } // namespace AccessToken
123 } // namespace Security
124 } // namespace OHOS
125