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 "gsmsmsparamcodec_fuzzer.h"
17
18 #define private public
19 #include "addsmstoken_fuzzer.h"
20 #include "i_sms_service_interface.h"
21 #include "sms_service.h"
22
23 using namespace OHOS::Telephony;
24 namespace OHOS {
25 static bool g_isInited = false;
26 static constexpr int32_t UINT8_COUNT = 256;
27 static constexpr int32_t CODE_SCHEME_SIZE = 6;
28 static constexpr int32_t TIME_FORMAT_SIZE = 3;
29
IsServiceInited()30 bool IsServiceInited()
31 {
32 if (!g_isInited) {
33 DelayedSingleton<SmsService>::GetInstance()->OnStart();
34 if (DelayedSingleton<SmsService>::GetInstance()->GetServiceRunningState() ==
35 static_cast<int32_t>(Telephony::ServiceRunningState::STATE_RUNNING)) {
36 g_isInited = true;
37 }
38 }
39 return g_isInited;
40 }
41
EncodePduItemsTest(const uint8_t * data,size_t size)42 void EncodePduItemsTest(const uint8_t *data, size_t size)
43 {
44 if (!IsServiceInited()) {
45 return;
46 }
47 auto codec = std::make_shared<GsmSmsParamCodec>();
48 AddressNumber *pAddress = new AddressNumber();
49 std::string addrParam(reinterpret_cast<const char *>(data), size);
50 codec->EncodeAddressPdu(pAddress, addrParam);
51
52 uint8_t decodeData[UINT8_COUNT + 1];
53 uint16_t len = UINT8_COUNT < size ? UINT8_COUNT : size;
54 if (memcpy_s(decodeData, len, data, len) != EOK) {
55 return;
56 }
57 codec->EncodeSmscPdu(addrParam.c_str(), decodeData);
58 pAddress->address[0] = data[0];
59 codec->EncodeAddressPdu(pAddress, addrParam);
60 codec->EncodeSmscPdu(pAddress, decodeData, len);
61 codec->EncodeAddressPdu(nullptr, addrParam);
62 codec->EncodeSmscPdu(nullptr, decodeData);
63 codec->EncodeSmscPdu(nullptr, decodeData, len);
64
65 std::string timeParam(reinterpret_cast<const char *>(data), size);
66 codec->EncodeTimePdu(nullptr, timeParam);
67 SmsTimeStamp *stamp = new SmsTimeStamp();
68 stamp->format = static_cast<SmsTimeFormat>(size % TIME_FORMAT_SIZE);
69 stamp->time.absolute.timeZone = size;
70 codec->EncodeTimePdu(stamp, timeParam);
71
72 SmsDcs *dcs = new SmsDcs();
73 std::string dcsParam(reinterpret_cast<const char *>(data), size);
74 codec->EncodeDCS(nullptr, dcsParam);
75 dcs->codingGroup = static_cast<PduSchemeGroup>(size % CODE_SCHEME_SIZE);
76 dcs->codingScheme = static_cast<DataCodingScheme>(size % CODE_SCHEME_SIZE);
77 codec->EncodeDCS(dcs, dcsParam);
78 }
79
DecodePduItemsTest(const uint8_t * data,size_t size)80 void DecodePduItemsTest(const uint8_t *data, size_t size)
81 {
82 if (!IsServiceInited()) {
83 return;
84 }
85
86 auto codec = std::make_shared<GsmSmsParamCodec>();
87 std::string pdu(reinterpret_cast<const char *>(data), size);
88 SmsReadBuffer buffer(pdu);
89 AddressNumber *address = new AddressNumber();
90 codec->DecodeAddressPdu(buffer, address);
91
92 SmsTimeStamp *stamp = new SmsTimeStamp();
93 codec->DecodeTimePdu(buffer, stamp);
94
95 SmsDcs *dcs = new SmsDcs();
96 codec->DecodeDcsPdu(buffer, dcs);
97
98 int32_t setType[UINT8_COUNT] = { 0 };
99 int32_t indType[UINT8_COUNT] { 0 };
100 codec->CheckVoicemail(buffer, setType, indType);
101 }
102
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)103 void DoSomethingInterestingWithMyAPI(const uint8_t *data, size_t size)
104 {
105 if (data == nullptr || size == 0) {
106 return;
107 }
108
109 EncodePduItemsTest(data, size);
110 DecodePduItemsTest(data, size);
111 }
112 } // namespace OHOS
113
114 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)115 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
116 {
117 /* Run your code on data */
118 OHOS::AddSmsTokenFuzzer token;
119 OHOS::DoSomethingInterestingWithMyAPI(data, size);
120 return 0;
121 }
122