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 <cstddef>
17 #include <cstdint>
18 #include <unistd.h>
19 #include "clientstub_fuzzer.h"
20 #include "message_parcel.h"
21 #include "securec.h"
22 #include "dhcp_client_service_impl.h"
23 #include "dhcp_client_stub.h"
24 #include "dhcp_manager_service_ipc_interface_code.h"
25 #include "dhcp_fuzz_common_func.h"
26
27 namespace OHOS {
28 namespace DHCP {
29 constexpr size_t U32_AT_SIZE_ZERO = 4;
30 constexpr size_t DHCP_SLEEP_1 = 1;
31 const std::u16string FORMMGR_INTERFACE_TOKEN = u"ohos.wifi.IDhcpClient";
32 sptr<DhcpClientStub> pDhcpClientStub = DhcpClientServiceImpl::GetInstance();
33
OnRegisterCallBackTest(const std::string & ifname,size_t size)34 void OnRegisterCallBackTest(const std::string& ifname, size_t size)
35 {
36 uint32_t code = static_cast<uint32_t>(DhcpClientInterfaceCode::DHCP_CLIENT_SVR_CMD_REG_CALL_BACK);
37 MessageParcel datas;
38 datas.WriteInterfaceToken(FORMMGR_INTERFACE_TOKEN);
39 datas.WriteInt32(0);
40 datas.WriteString(ifname);
41 datas.RewindRead(0);
42 MessageParcel reply;
43 MessageOption option;
44 pDhcpClientStub->OnRemoteRequest(code, datas, reply, option);
45 }
46
OnStartDhcpClientTest(const std::string & ifname,size_t size,bool ipv6)47 void OnStartDhcpClientTest(const std::string& ifname, size_t size, bool ipv6)
48 {
49 uint32_t code = static_cast<uint32_t>(DhcpClientInterfaceCode::DHCP_CLIENT_SVR_CMD_START_DHCP_CLIENT);
50 MessageParcel datas;
51 datas.WriteInterfaceToken(FORMMGR_INTERFACE_TOKEN);
52 datas.WriteInt32(0);
53 datas.WriteString("");
54 datas.WriteBool(ipv6);
55 datas.RewindRead(0);
56 MessageParcel reply;
57 MessageOption option;
58 pDhcpClientStub->OnRemoteRequest(code, datas, reply, option);
59 }
60
OnStopDhcpClientTest(const std::string & ifname,size_t size,bool ipv6)61 void OnStopDhcpClientTest(const std::string& ifname, size_t size, bool ipv6)
62 {
63 uint32_t code = static_cast<uint32_t>(DhcpClientInterfaceCode::DHCP_CLIENT_SVR_CMD_STOP_DHCP_CLIENT);
64 MessageParcel datas;
65 datas.WriteInterfaceToken(FORMMGR_INTERFACE_TOKEN);
66 datas.WriteInt32(0);
67 datas.WriteString(ifname);
68 datas.WriteBool(ipv6);
69 MessageParcel reply;
70 MessageOption option;
71 pDhcpClientStub->OnRemoteRequest(code, datas, reply, option);
72 }
73
OnSetConfigurationTest(const std::string & ifname)74 void OnSetConfigurationTest(const std::string& ifname)
75 {
76 uint32_t code = static_cast<uint32_t>(DhcpClientInterfaceCode::DHCP_CLIENT_SVR_CMD_SET_CONFIG);
77 MessageParcel datas;
78 datas.WriteInterfaceToken(FORMMGR_INTERFACE_TOKEN);
79 datas.WriteInt32(0);
80 datas.WriteString(ifname);
81 datas.WriteString("bssid");
82 MessageParcel reply;
83 MessageOption option;
84 pDhcpClientStub->OnRemoteRequest(code, datas, reply, option);
85 }
86
87 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)88 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
89 {
90 if ((data == nullptr) || (size <= OHOS::DHCP::U32_AT_SIZE_ZERO)) {
91 return 0;
92 }
93 std::string ifname = "wlan0";
94 OnRegisterCallBackTest(ifname, size);
95 sleep(DHCP_SLEEP_1);
96 OnSetConfigurationTest(ifname);
97 sleep(DHCP_SLEEP_1);
98 OnStartDhcpClientTest(ifname, size, false);
99 sleep(DHCP_SLEEP_1);
100 OnStopDhcpClientTest(ifname, size, false);
101 sleep(DHCP_SLEEP_1);
102 return 0;
103 }
104 } // namespace DHCP
105 } // namespace OHOS
106