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 "createdatachannelstub_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "accesstoken_kit.h"
22 #include "message_parcel.h"
23 #include "nativetoken_kit.h"
24 #include "securec.h"
25 #include "token_setproc.h"
26
27 #include "sensor.h"
28 #include "sensor_service.h"
29
30 namespace OHOS {
31 namespace Sensors {
32 using namespace Security::AccessToken;
33 using Security::AccessToken::AccessTokenID;
34 namespace {
35 constexpr size_t U32_AT_SIZE = 4;
36 auto g_service = SensorDelayedSpSingleton<SensorService>::GetInstance();
37 const std::u16string SENSOR_INTERFACE_TOKEN = u"OHOS.Sensors.ISensorService";
38 static sptr<IRemoteObject> g_remote = new (std::nothrow) IPCObjectStub();
39 } // namespace
40
SetUpTestCase()41 void SetUpTestCase()
42 {
43 const char **perms = new (std::nothrow) const char *[2];
44 if (perms == nullptr) {
45 return;
46 }
47 perms[0] = "ohos.permission.ACCELEROMETER";
48 perms[1] = "ohos.permission.MANAGE_SENSOR";
49 TokenInfoParams infoInstance = {
50 .dcapsNum = 0,
51 .permsNum = 2,
52 .aclsNum = 0,
53 .dcaps = nullptr,
54 .perms = perms,
55 .acls = nullptr,
56 .processName = "CreateDataChannelStubFuzzTest",
57 .aplStr = "system_core",
58 };
59 uint64_t tokenId = GetAccessTokenId(&infoInstance);
60 SetSelfTokenID(tokenId);
61 AccessTokenKit::ReloadNativeTokenInfo();
62 delete[] perms;
63 }
64
65 template<class T>
GetObject(T & object,const uint8_t * data,size_t size)66 size_t GetObject(T &object, const uint8_t *data, size_t size)
67 {
68 size_t objectSize = sizeof(object);
69 if (objectSize > size) {
70 return 0;
71 }
72 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
73 if (ret != EOK) {
74 return 0;
75 }
76 return objectSize;
77 }
78
OnRemoteRequestFuzzTest(const uint8_t * data,size_t size)79 bool OnRemoteRequestFuzzTest(const uint8_t *data, size_t size)
80 {
81 SetUpTestCase();
82 if (g_remote == nullptr || g_service == nullptr) {
83 return false;
84 }
85 MessageParcel datas;
86 datas.WriteInterfaceToken(SENSOR_INTERFACE_TOKEN);
87 int32_t fd = 0;
88 GetObject<int32_t>(fd, data, size);
89 datas.WriteFileDescriptor(fd);
90 datas.WriteRemoteObject(g_remote);
91 datas.RewindRead(0);
92 MessageParcel reply;
93 MessageOption option;
94 g_service->OnRemoteRequest(static_cast<uint32_t>(ISensorServiceIpcCode::COMMAND_TRANSFER_DATA_CHANNEL),
95 datas, reply, option);
96 datas.RewindRead(0);
97 g_service->OnRemoteRequest(static_cast<uint32_t>(ISensorServiceIpcCode::COMMAND_DESTROY_SENSOR_CHANNEL),
98 datas, reply, option);
99 datas.RewindRead(0);
100 g_service->OnRemoteRequest(static_cast<uint32_t>(ISensorServiceIpcCode::COMMAND_CREATE_SOCKET_CHANNEL),
101 datas, reply, option);
102 datas.RewindRead(0);
103 g_service->OnRemoteRequest(static_cast<uint32_t>(ISensorServiceIpcCode::COMMAND_DESTROY_SOCKET_CHANNEL),
104 datas, reply, option);
105 return true;
106 }
107 } // namespace Sensors
108 } // namespace OHOS
109
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)110 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
111 {
112 /* Run your code on data */
113 if (data == nullptr) {
114 return 0;
115 }
116
117 /* Validate the length of size */
118 if (size < OHOS::Sensors::U32_AT_SIZE) {
119 return 0;
120 }
121
122 OHOS::Sensors::OnRemoteRequestFuzzTest(data, size);
123 return 0;
124 }
125