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/commonFuzzHelpers.h b/libs/binder/tests/fuzzers/commonFuzzHelpers.h
new file mode 100644
index 0000000..d58d9b6
--- /dev/null
+++ b/libs/binder/tests/fuzzers/commonFuzzHelpers.h
@@ -0,0 +1,41 @@
+/*
+ * 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 <vector>
+
+// Calls a function from the ops_vector
+template <class F, class T, class... Types>
+void callArbitraryFunction(F* fdp, T const& ops_vector, Types... args) {
+ // Choose which function we'll be calling
+ uint8_t function_id = fdp->template ConsumeIntegralInRange<uint8_t>(0, ops_vector.size() - 1);
+
+ // Call the function we've chosen
+ ops_vector[function_id](fdp, args...);
+}
+
+template <class T>
+T getArbitraryVectorElement(FuzzedDataProvider* fdp, std::vector<T> const& vect, bool allow_null) {
+ // If we're allowing null, give it a 50:50 shot at returning a nullptr
+ if (vect.empty() || (allow_null && fdp->ConsumeBool())) {
+ return nullptr;
+ }
+
+ // Otherwise, return an element from our vector
+ return vect.at(fdp->ConsumeIntegralInRange<size_t>(0, vect.size() - 1));
+}