1 /*
2 * Copyright (c) 2022-2024 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 "wappushbuffer_fuzzer.h"
17
18 #ifdef GTEST_API_
19 #define private public
20 #endif
21
22 #include "addsmstoken_fuzzer.h"
23 #include "sms_wap_push_handler.h"
24
25 using namespace OHOS::Telephony;
26 namespace OHOS {
27 static int32_t SIM_COUNT = 2;
28
WapPushBuffer(const uint8_t * data,size_t size)29 void WapPushBuffer(const uint8_t *data, size_t size)
30 {
31 int32_t slotId = static_cast<int32_t>(size % SIM_COUNT);
32 std::string strValue(reinterpret_cast<const char *>(data), size);
33 std::unique_ptr<SmsWapPushHandler> smsWapPushHandler = std::make_unique<SmsWapPushHandler>(slotId);
34 auto indexer = std::make_shared<SmsReceiveIndexer>();
35 smsWapPushHandler->DecodeWapPushPdu(indexer, strValue);
36
37 auto decodeBuffer = std::make_shared<SmsWapPushBuffer>();
38 if (decodeBuffer == nullptr) {
39 return;
40 }
41 uint32_t desLen = static_cast<uint32_t>(size);
42 decodeBuffer->ReadDataBuffer(desLen);
43
44 std::unique_ptr<char[]> inBuff = std::make_unique<char[]>(desLen);
45 decodeBuffer->WriteDataBuffer(std::move(inBuff), desLen);
46 decodeBuffer->GetCurPosition();
47 decodeBuffer->GetSize();
48
49 uint8_t uint8tValue;
50 decodeBuffer->PeekOneByte(uint8tValue);
51 decodeBuffer->IncreasePointer(desLen);
52 decodeBuffer->DecreasePointer(desLen);
53 decodeBuffer->DecodeUintvar(desLen, desLen);
54
55 decodeBuffer->DecodeShortLength(uint8tValue);
56 decodeBuffer->DecodeValueLength(desLen);
57 decodeBuffer->CharIsToken(uint8tValue);
58 decodeBuffer->DecodeTokenText(strValue, desLen);
59 decodeBuffer->DecodeText(strValue, desLen);
60
61 decodeBuffer->DecodeQuotedText(strValue, desLen);
62 decodeBuffer->DecodeShortInteger(uint8tValue);
63
64 uint64_t uint64tValue;
65 decodeBuffer->DecodeLongInteger(uint64tValue);
66 decodeBuffer->DecodeInteger(uint64tValue);
67
68 decodeBuffer->DecodeIsShortInt();
69 decodeBuffer->DecodeIsString();
70 decodeBuffer->DecodeIsValueLength();
71 decodeBuffer->DecodeExtensionMedia();
72 decodeBuffer->DecodeConstrainedEncoding();
73
74 bool isNoValue = slotId == 0 ? true : false;
75 decodeBuffer->DecodeTextValue(strValue, isNoValue);
76 decodeBuffer->DecodeNoValue(isNoValue);
77 decodeBuffer->MarkPosition();
78 decodeBuffer->UnMarkPosition();
79 }
80
DoWapPushBufferWithMyAPI(const uint8_t * data,size_t size)81 void DoWapPushBufferWithMyAPI(const uint8_t *data, size_t size)
82 {
83 if (data == nullptr || size == 0) {
84 return;
85 }
86
87 WapPushBuffer(data, size);
88 }
89 } // namespace OHOS
90
91 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)92 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
93 {
94 /* Run your code on data */
95 OHOS::AddSmsTokenFuzzer token;
96 OHOS::DoWapPushBufferWithMyAPI(data, size);
97 return 0;
98 }
99