1 /*
2 * Copyright (c) 2023 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 "hks_service_on_remote_request_fuzzer.h"
17
18 #include <securec.h>
19
20 #include "hks_client_service.h"
21 #include "hks_sa.h"
22 #include "huks_service_ipc_interface_code.h"
23
24 namespace OHOS {
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)25 bool DoSomethingInterestingWithMyAPI(const uint8_t *data, size_t size)
26 {
27 // Initialize the huks service
28 HksServiceInitialize();
29 const std::u16string SA_KEYSTORE_SERVICE_DESCRIPTOR = u"ohos.security.hks.service";
30 sptr<OHOS::Security::Hks::HksService> ptrInstance = OHOS::Security::Hks::HksService::GetInstance();
31
32 // use loop to call each service function
33 for (uint32_t msgcode = HKS_MSG_BASE; msgcode < HKS_MSG_MAX; msgcode++) {
34 // init parcel
35 MessageParcel dataParcel;
36 MessageParcel replyParcel;
37 MessageOption optionSync = MessageOption::TF_SYNC;
38 MessageOption optionAsync = MessageOption::TF_ASYNC;
39
40 // Sync
41 dataParcel.WriteInterfaceToken(SA_KEYSTORE_SERVICE_DESCRIPTOR);
42 dataParcel.WriteUint32(0); // outData
43 dataParcel.WriteUint32(static_cast<uint32_t>(size)); // inData
44 dataParcel.WriteBuffer(data, size);
45 (void)ptrInstance->OnRemoteRequest(msgcode, dataParcel, replyParcel, optionSync);
46
47 // Async
48 dataParcel.WriteInterfaceToken(SA_KEYSTORE_SERVICE_DESCRIPTOR);
49 dataParcel.WriteUint32(0); // outData
50 dataParcel.WriteUint32(static_cast<uint32_t>(size)); // inData
51 dataParcel.WriteBuffer(data, size);
52 (void)ptrInstance->OnRemoteRequest(msgcode, dataParcel, replyParcel, optionAsync);
53 }
54 return true;
55 }
56 }
57
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)58 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
59 {
60 OHOS::DoSomethingInterestingWithMyAPI(data, size);
61 return 0;
62 }
63