Adding multiple fuzzers for libbinder.
Adding fuzzers in libbinder for Binder, BpBinder, MemoryHeapBase, ParcelBlob, PersistableBundle, Stability, Status, and TextOutput. These follow the same framework style.
Test: Tested on a Pixel3a device for 500k iterations each.
Signed-off-by: Corbin Souffrant <corbin.souffrant@leviathansecurity.com>
Change-Id: I53b85570a3abde854b01ffefc2739b79b39af7e2
diff --git a/libs/binder/tests/fuzzers/StatusFuzzFunctions.h b/libs/binder/tests/fuzzers/StatusFuzzFunctions.h
new file mode 100644
index 0000000..bc8d17a
--- /dev/null
+++ b/libs/binder/tests/fuzzers/StatusFuzzFunctions.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <fuzzer/FuzzedDataProvider.h>
+
+#include <binder/Parcel.h>
+#include <binder/Status.h>
+#include <stdio.h>
+#include <utils/String8.h>
+#include <cstdint>
+#include <sstream>
+#include <string>
+
+namespace android {
+/* This is a vector of lambda functions the fuzzer will pull from.
+ * This is done so new functions can be added to the fuzzer easily
+ * without requiring modifications to the main fuzzer file. This also
+ * allows multiple fuzzers to include this file, if functionality is needed.
+ */
+static const std::vector<std::function<void(FuzzedDataProvider*, binder::Status*, Parcel*)>>
+ gStatusOperations = {
+ [](FuzzedDataProvider*, binder::Status* status, Parcel* parcel) -> void {
+ parcel->setDataPosition(0);
+ status->readFromParcel(*parcel);
+ },
+ [](FuzzedDataProvider*, binder::Status* status, Parcel* parcel) -> void {
+ status->writeToParcel(parcel);
+ },
+ [](FuzzedDataProvider* fdp, binder::Status* status, Parcel*) -> void {
+ std::string message_str =
+ fdp->ConsumeRandomLengthString(fdp->remaining_bytes());
+ String8 message(message_str.c_str());
+ status->setServiceSpecificError(fdp->ConsumeIntegral<int32_t>(), message);
+ },
+ [](FuzzedDataProvider* fdp, binder::Status* status, Parcel*) -> void {
+ std::string message_str =
+ fdp->ConsumeRandomLengthString(fdp->remaining_bytes());
+ String8 message(message_str.c_str());
+ status->setException(fdp->ConsumeIntegral<int32_t>(), message);
+ },
+ [](FuzzedDataProvider*, binder::Status* status, Parcel*) -> void { status->ok(); },
+ [](FuzzedDataProvider* fdp, binder::Status* status, Parcel*) -> void {
+ std::string message_str =
+ fdp->ConsumeRandomLengthString(fdp->remaining_bytes());
+ String8 message(message_str.c_str());
+ *status = binder::Status::fromExceptionCode(fdp->ConsumeIntegral<int32_t>(),
+ message);
+ },
+ [](FuzzedDataProvider* fdp, binder::Status* status, Parcel*) -> void {
+ *status = binder::Status::fromServiceSpecificError(
+ fdp->ConsumeIntegral<int32_t>());
+ },
+ [](FuzzedDataProvider* fdp, binder::Status*, Parcel*) -> void {
+ binder::Status::exceptionToString(fdp->ConsumeIntegral<int32_t>());
+ },
+ [](FuzzedDataProvider* fdp, binder::Status* status, Parcel*) -> void {
+ std::string message_str =
+ fdp->ConsumeRandomLengthString(fdp->remaining_bytes());
+ String8 message(message_str.c_str());
+ *status = binder::Status::fromServiceSpecificError(fdp->ConsumeIntegral<
+ int32_t>(),
+ message);
+ },
+ [](FuzzedDataProvider* fdp, binder::Status* status, Parcel*) -> void {
+ *status = binder::Status::fromStatusT(fdp->ConsumeIntegral<status_t>());
+ },
+ [](FuzzedDataProvider* fdp, binder::Status* status, Parcel*) -> void {
+ status->setFromStatusT(fdp->ConsumeIntegral<status_t>());
+ },
+ [](FuzzedDataProvider*, binder::Status* status, Parcel*) -> void {
+ std::stringstream ss;
+ ss << *status;
+ },
+};
+
+} // namespace android