1 /*
2 * Copyright (C) 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 "dhcpbinding_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <unistd.h>
21 #include "securec.h"
22 #include "dhcp_binding.h"
23
24 namespace OHOS {
25 namespace Wifi {
26 constexpr size_t DHCP_SLEEP_1 = 2;
27
NextPendingIntervalTest(const uint8_t * data,size_t size)28 void NextPendingIntervalTest(const uint8_t* data, size_t size)
29 {
30 uint64_t index = 0;
31 uint64_t pendingInterval = static_cast<uint64_t>(data[index++]);
32 NextPendingInterval(pendingInterval);
33 }
34
IsExpireTest(const uint8_t * data,size_t size)35 void IsExpireTest(const uint8_t* data, size_t size)
36 {
37 AddressBinding binding;
38 uint64_t index = 0;
39 binding.ipAddress = static_cast<uint32_t>(data[index++]);
40 binding.clientId = static_cast<uint32_t>(data[index++]);
41 binding.bindingTime = static_cast<uint64_t>(data[index++]);
42 binding.pendingTime = static_cast<uint64_t>(data[index++]);
43 binding.expireIn = static_cast<uint64_t>(data[index++]);
44 binding.leaseTime = static_cast<uint64_t>(data[index++]);
45 binding.pendingInterval = static_cast<uint64_t>(data[index++]);
46 IsExpire(&binding);
47 }
48
WriteAddressBindingTest(const uint8_t * data,size_t size)49 void WriteAddressBindingTest(const uint8_t* data, size_t size)
50 {
51 AddressBinding binding;
52 uint64_t index = 0;
53 uint32_t size_t = static_cast<uint64_t>(data[index++]);
54 binding.ipAddress = static_cast<uint32_t>(data[index++]);
55 binding.clientId = static_cast<uint32_t>(data[index++]);
56 binding.bindingTime = static_cast<uint64_t>(data[index++]);
57 binding.pendingTime = static_cast<uint64_t>(data[index++]);
58 binding.expireIn = static_cast<uint64_t>(data[index++]);
59 binding.leaseTime = static_cast<uint64_t>(data[index++]);
60 binding.pendingInterval = static_cast<uint64_t>(data[index++]);
61 char out;
62 if (size > 0) {
63 out = static_cast<char>(data[0]);
64 }
65 WriteAddressBinding(&binding, &out, size_t);
66 }
67
ParseAddressBindingTest(const uint8_t * data,size_t size)68 void ParseAddressBindingTest(const uint8_t* data, size_t size)
69 {
70 AddressBinding binding;
71 uint64_t index = 0;
72 binding.ipAddress = static_cast<uint32_t>(data[index++]);
73 binding.clientId = static_cast<uint32_t>(data[index++]);
74 binding.bindingTime = static_cast<uint64_t>(data[index++]);
75 binding.pendingTime = static_cast<uint64_t>(data[index++]);
76 binding.expireIn = static_cast<uint64_t>(data[index++]);
77 binding.leaseTime = static_cast<uint64_t>(data[index++]);
78 binding.pendingInterval = static_cast<uint64_t>(data[index++]);
79 char buf;
80 if (size > 0) {
81 buf = static_cast<char>(data[0]);
82 }
83 ParseAddressBinding(&binding, &buf);
84 }
85
86 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)87 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
88 {
89 if (data == nullptr) {
90 return 0;
91 }
92 sleep(DHCP_SLEEP_1);
93 OHOS::Wifi::NextPendingIntervalTest(data, size);
94 OHOS::Wifi::IsExpireTest(data, size);
95 OHOS::Wifi::WriteAddressBindingTest(data, size);
96 OHOS::Wifi::ParseAddressBindingTest(data, size);
97 return 0;
98 }
99 } // namespace Wifi
100 } // namespace OHOS
101