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 "multimodal_input_connect_stub.h"
17 #include <sys/types.h>
18 #include <sys/socket.h>
19 #include "error_multimodal.h"
20 #include "mmi_log.h"
21 #include "multimodal_input_connect_define.h"
22 #include "string_ex.h"
23
24 namespace OHOS {
25 namespace MMI {
26 namespace {
27 constexpr OHOS::HiviewDFX::HiLogLabel LABEL = { LOG_CORE, MMI_LOG_DOMAIN, "MultimodalInputConnectStub" };
28 } // namespace
29
OnRemoteRequest(uint32_t code,MessageParcel & data,MessageParcel & reply,MessageOption & option)30 int32_t MultimodalInputConnectStub::OnRemoteRequest(
31 uint32_t code, MessageParcel& data, MessageParcel& reply, MessageOption& option)
32 {
33 MMI_LOGD("enter, code:%{public}d", code);
34
35 std::u16string descriptor = data.ReadInterfaceToken();
36 if (descriptor != IMultimodalInputConnect::GetDescriptor()) {
37 MMI_LOGE("get unexpect descriptor:%{public}s", Str16ToStr8(descriptor).c_str());
38 return ERR_INVALID_STATE;
39 }
40
41 switch (code) {
42 case IMultimodalInputConnect::ALLOC_SOCKET_FD:
43 return StubHandleAllocSocketFd(data, reply);
44 case IMultimodalInputConnect::SET_EVENT_POINTER_FILTER:
45 return StubAddInputEventFilter(data, reply);
46 default:
47 MMI_LOGE("unknown code:%{public}u, go switch defaut", code);
48 return IPCObjectStub::OnRemoteRequest(code, data, reply, option);
49 }
50 }
51
StubAddInputEventFilter(MessageParcel & data,MessageParcel & reply)52 int32_t MultimodalInputConnectStub::StubAddInputEventFilter(MessageParcel& data, MessageParcel& reply)
53 {
54 MMI_LOGD("enter");
55 int32_t ret = RET_OK;
56
57 do {
58 const int32_t uid = IPCSkeleton::GetCallingUid();
59 if (uid != SYSTEM_UID && uid != ROOT_UID) {
60 MMI_LOGE("uid is not root or system");
61 ret = SASERVICE_PERMISSION_FAIL;
62 break;
63 }
64
65 sptr<IRemoteObject> client = data.ReadRemoteObject();
66 if (client == nullptr) {
67 MMI_LOGE("the mouse client value is nullptr");
68 ret = ERR_INVALID_VALUE;
69 break;
70 }
71
72 sptr<IEventFilter> filter = iface_cast<IEventFilter>(client);
73 if (filter == nullptr) {
74 MMI_LOGE("filter is nullptr");
75 ret = ERROR_NULL_POINTER;
76 break;
77 }
78
79 MMI_LOGD("filter iface_cast succeeded");
80
81 ret = AddInputEventFilter(filter);
82 } while (0);
83
84 if (!reply.WriteInt32(ret)) {
85 MMI_LOGE("WriteInt32:%{public}d fail", ret);
86 return IPC_STUB_WRITE_PARCEL_ERR;
87 }
88
89 MMI_LOGD("leave, ret:%{public}d", ret);
90 return RET_OK;
91 }
92 } // namespace MMI
93 } // namespace OHOS