1 /*
2 * Copyright (C) 2021-2022 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 "ipc_callback_stub.h"
17 #include "common_defs.h"
18 #include "hc_log.h"
19 #include "ipc_adapt.h"
20 #include "securec.h"
21 #include "system_ability_definition.h"
22
23 namespace OHOS {
StubDevAuthCb()24 StubDevAuthCb::StubDevAuthCb()
25 {}
26
~StubDevAuthCb()27 StubDevAuthCb::~StubDevAuthCb()
28 {}
29
DoCallBack(int32_t callbackId,uintptr_t cbHook,MessageParcel & dataParcel,MessageParcel & reply,MessageOption & option)30 void StubDevAuthCb::DoCallBack(int32_t callbackId, uintptr_t cbHook,
31 MessageParcel &dataParcel, MessageParcel &reply, MessageOption &option)
32 {
33 int32_t ret;
34 int32_t i;
35 MessageParcel retParcel;
36 IpcDataInfo cbDataCache[MAX_REQUEST_PARAMS_NUM] = { { 0 } };
37
38 if (cbHook == 0x0) {
39 LOGE("Invalid call back hook");
40 return;
41 }
42
43 for (i = 0; i < MAX_REQUEST_PARAMS_NUM; i++) {
44 ret = DecodeIpcData(reinterpret_cast<uintptr_t>(&dataParcel), &(cbDataCache[i].type),
45 &(cbDataCache[i].val), &(cbDataCache[i].valSz));
46 if (ret != HC_SUCCESS) {
47 LOGE("decode failed, ret %d", ret);
48 return;
49 }
50 }
51 ProcCbHook(callbackId, cbHook, cbDataCache, MAX_REQUEST_PARAMS_NUM, reinterpret_cast<uintptr_t>(&reply));
52 return;
53 }
54
OnRemoteRequest(uint32_t code,MessageParcel & data,MessageParcel & reply,MessageOption & option)55 int32_t StubDevAuthCb::OnRemoteRequest(uint32_t code,
56 MessageParcel &data, MessageParcel &reply, MessageOption &option)
57 {
58 if (data.ReadInterfaceToken() != GetDescriptor()) {
59 LOGE("[IPC][S->C]: The client interface token is invalid!");
60 return -1;
61 }
62 int32_t callbackId;
63 uintptr_t cbHook = 0x0;
64
65 switch (code) {
66 case static_cast<uint32_t>(DevAuthCbInterfaceCode::DEV_AUTH_CALLBACK_REQUEST):
67 if (data.GetReadableBytes() < sizeof(int32_t)) {
68 LOGE("Insufficient data available in IPC container. [Data]: callbackId");
69 return -1;
70 }
71 callbackId = data.ReadInt32();
72 cbHook = data.ReadPointer();
73 StubDevAuthCb::DoCallBack(callbackId, cbHook, data, reply, option);
74 break;
75 default:
76 LOGE("Invoke call back cmd id error, %u", code);
77 return IPCObjectStub::OnRemoteRequest(code, data, reply, option);
78 }
79 return 0;
80 }
81 }
82