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 "sensoragent_fuzzer.h"
17
18 #include <unistd.h>
19 #include <thread>
20
21 #include "accesstoken_kit.h"
22 #include "token_setproc.h"
23 #include "nativetoken_kit.h"
24 #include "securec.h"
25
26 #include "sensor_agent.h"
27 #include "sensor_agent_type.h"
28 #include "sensor_errors.h"
29
30 namespace OHOS {
31 namespace Sensors {
32 using namespace OHOS::HiviewDFX;
33 using namespace OHOS::Security::AccessToken;
34 using OHOS::Security::AccessToken::AccessTokenID;
35 namespace {
36 constexpr int64_t g_samplingInterval = 200000000;
37 constexpr int64_t g_reportInterval = 200000000;
38 } // namespace
39
40 template<class T>
GetObject(T & object,const uint8_t * data,size_t size)41 size_t GetObject(T &object, const uint8_t *data, size_t size)
42 {
43 size_t objectSize = sizeof(object);
44 if (objectSize > size) {
45 return 0;
46 }
47 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
48 if (ret != EOK) {
49 return 0;
50 }
51 return objectSize;
52 }
53
SetUpTestCase()54 void SetUpTestCase()
55 {
56 const char **perms = new (std::nothrow) const char *[2];
57 CHKPV(perms);
58 perms[0] = "ohos.permission.ACCELEROMETER";
59 perms[1] = "ohos.permission.MANAGE_SENSOR";
60 TokenInfoParams infoInstance = {
61 .dcapsNum = 0,
62 .permsNum = 2,
63 .aclsNum = 0,
64 .dcaps = nullptr,
65 .perms = perms,
66 .acls = nullptr,
67 .processName = "SensorAgentFuzzTest",
68 .aplStr = "system_core",
69 };
70 uint64_t tokenId = GetAccessTokenId(&infoInstance);
71 SetSelfTokenID(tokenId);
72 AccessTokenKit::ReloadNativeTokenInfo();
73 delete[] perms;
74 }
75
SensorDataCallbackImpl(SensorEvent * event)76 void SensorDataCallbackImpl(SensorEvent *event)
77 {
78 if (event == nullptr) {
79 return;
80 }
81 }
82
CheckSensorTypeId(int32_t sensorTypeId)83 bool CheckSensorTypeId(int32_t sensorTypeId)
84 {
85 int32_t count = -1;
86 SensorInfo *sensorInfo = nullptr;
87 int32_t ret = GetAllSensors(&sensorInfo, &count);
88 if (ret != 0) {
89 return false;
90 }
91 for (int32_t i = 0; i < count; i++) {
92 if ((sensorInfo + i)->sensorTypeId == sensorTypeId) {
93 return true;
94 }
95 }
96 return false;
97 }
98
SensorAgentFuzzTest(const uint8_t * data,size_t size)99 void SensorAgentFuzzTest(const uint8_t *data, size_t size)
100 {
101 SetUpTestCase();
102 size_t startPos = 0;
103 int32_t sensorTypeId = 0;
104 int32_t mode = 0;
105 GetObject<int32_t>(sensorTypeId, data + startPos, size - startPos);
106 GetObject<int32_t>(mode, data, size);
107 bool validSensorId = CheckSensorTypeId(sensorTypeId);
108 if (!validSensorId) {
109 sensorTypeId = SENSOR_TYPE_ID_ACCELEROMETER;
110 }
111 SensorUser user;
112 user.callback = SensorDataCallbackImpl;
113 SubscribeSensor(sensorTypeId, &user);
114 SetBatch(sensorTypeId, &user, g_samplingInterval, g_reportInterval);
115 ActivateSensor(sensorTypeId, &user);
116 SetMode(sensorTypeId, &user, mode);
117 std::this_thread::sleep_for(std::chrono::milliseconds(1000));
118 DeactivateSensor(sensorTypeId, &user);
119 UnsubscribeSensor(sensorTypeId, &user);
120 }
121 } // namespace Sensors
122 } // namespace OHOS
123
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)124 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
125 {
126 OHOS::Sensors::SensorAgentFuzzTest(data, size);
127 return 0;
128 }
129
130