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 "edm_plugin_fuzzer.h"
17
18 #include "common_fuzzer.h"
19 #include "edm_ipc_interface_code.h"
20 #include "func_code.h"
21
22 namespace OHOS {
23 namespace EDM {
24 constexpr size_t MIN_SIZE = 4;
25 constexpr uint32_t MAX_EDM_INTERFACE_CODE = 1000;
26
27 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)28 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
29 {
30 if (data == nullptr) {
31 return 0;
32 }
33
34 if (size < MIN_SIZE) {
35 return 0;
36 }
37 uint32_t operateType = (CommonFuzzer::GetU32Data(data)) % 3;
38 uint32_t code = (CommonFuzzer::GetU32Data(data)) % 60 + MAX_EDM_INTERFACE_CODE;
39 if (code == EdmInterfaceCode::RESET_FACTORY || code == EdmInterfaceCode::SHUTDOWN ||
40 code == EdmInterfaceCode::REBOOT || code == EdmInterfaceCode::USB_READ_ONLY ||
41 code == EdmInterfaceCode::DISABLED_HDC || code == EdmInterfaceCode::DISABLE_USB ||
42 code == EdmInterfaceCode::SET_WIFI_PROFILE) {
43 return 0;
44 }
45 code = POLICY_FUNC_CODE(operateType, code);
46 MessageParcel parcel;
47 CommonFuzzer::SetParcelContent(parcel, data, size);
48 CommonFuzzer::OnRemoteRequestFuzzerTest(code, data, size, parcel);
49
50 return 0;
51 }
52 } // namespace EDM
53 } // namespace OHOS