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