1 /*
2 * Copyright (C) 2023 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <android-base/logging.h>
18 #include <fuzzbinder/libbinder_driver.h>
19
20 #include "VendorVoldNativeService.h"
21 #include "VoldNativeService.h"
22 #include "sehandle.h"
23
24 using ::android::fuzzService;
25 using ::android::sp;
26
27 struct selabel_handle* sehandle;
28
LLVMFuzzerInitialize(int argc,char argv)29 extern "C" int LLVMFuzzerInitialize(int argc, char argv) {
30 sehandle = selinux_android_file_context_handle();
31 if (!sehandle) {
32 LOG(ERROR) << "Failed to get SELinux file contexts handle in voldFuzzer!";
33 exit(1);
34 }
35 selinux_android_set_sehandle(sehandle);
36 return 0;
37 }
38
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)39 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
40 // TODO(b/183141167): need to rewrite 'dump' to avoid SIGPIPE.
41 signal(SIGPIPE, SIG_IGN);
42 auto voldService = sp<android::vold::VoldNativeService>::make();
43 auto voldVendorService = sp<android::vold::VendorVoldNativeService>::make();
44 fuzzService({voldService, voldVendorService}, FuzzedDataProvider(data, size));
45 return 0;
46 }