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 "startdtmf_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #define private public
21 #include "addcalltoken_fuzzer.h"
22 #include "call_manager_service_stub.h"
23
24 using namespace OHOS::Telephony;
25 namespace OHOS {
26 constexpr int32_t CALL_ID_NUM = 10;
27
StartDtmf(const uint8_t * data,size_t size)28 void StartDtmf(const uint8_t *data, size_t size)
29 {
30 if (!IsServiceInited()) {
31 return;
32 }
33
34 int32_t callId = size % CALL_ID_NUM;
35 char str = *reinterpret_cast<const char *>(data);
36 MessageParcel dataMessageParcel;
37 dataMessageParcel.WriteInt32(callId);
38 dataMessageParcel.WriteInt8(str);
39 dataMessageParcel.RewindRead(0);
40 MessageParcel reply;
41 DelayedSingleton<CallManagerService>::GetInstance()->OnStartDtmf(dataMessageParcel, reply);
42 }
43
StopRtt(const uint8_t * data,size_t size)44 void StopRtt(const uint8_t *data, size_t size)
45 {
46 if (!IsServiceInited()) {
47 return;
48 }
49
50 int32_t callId = size % CALL_ID_NUM;
51 MessageParcel dataMessageParcel;
52 dataMessageParcel.WriteInt32(callId);
53 dataMessageParcel.RewindRead(0);
54 MessageParcel reply;
55 DelayedSingleton<CallManagerService>::GetInstance()->OnStopRtt(dataMessageParcel, reply);
56 }
57
SetMuted(const uint8_t * data,size_t size)58 void SetMuted(const uint8_t *data, size_t size)
59 {
60 if (!IsServiceInited()) {
61 return;
62 }
63
64 bool isMute = false;
65 MessageParcel dataMessageParcel;
66 dataMessageParcel.WriteBool(isMute);
67 dataMessageParcel.RewindRead(0);
68 MessageParcel reply;
69 DelayedSingleton<CallManagerService>::GetInstance()->OnSetMute(dataMessageParcel, reply);
70 }
71
MuteRinger(const uint8_t * data,size_t size)72 void MuteRinger(const uint8_t *data, size_t size)
73 {
74 if (!IsServiceInited()) {
75 return;
76 }
77
78 MessageParcel dataMessageParcel;
79 dataMessageParcel.WriteBuffer(data, size);
80 dataMessageParcel.RewindRead(0);
81 MessageParcel reply;
82 DelayedSingleton<CallManagerService>::GetInstance()->OnSetMute(dataMessageParcel, reply);
83 }
84
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)85 void DoSomethingInterestingWithMyAPI(const uint8_t *data, size_t size)
86 {
87 if (data == nullptr || size == 0) {
88 return;
89 }
90
91 StartDtmf(data, size);
92 StopRtt(data, size);
93 SetMuted(data, size);
94 MuteRinger(data, size);
95 }
96 } // namespace OHOS
97
98 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)99 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
100 {
101 OHOS::AddCallTokenFuzzer token;
102 /* Run your code on data */
103 OHOS::DoSomethingInterestingWithMyAPI(data, size);
104 return 0;
105 }
106