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/*
* 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/IBinder.h>
#include <binder/IPCThreadState.h>
#include <binder/IResultReceiver.h>
#include <binder/Parcel.h>
#include <binder/Stability.h>
#include <cutils/compiler.h>
#include <utils/KeyedVector.h>
#include <utils/Log.h>
#include <utils/Mutex.h>
#include <utils/threads.h>
namespace android {
class FuzzDeathRecipient : public IBinder::DeathRecipient {
private:
virtual void binderDied(const wp<IBinder>& who) { (void)who; };
};
// Allow objects to be attached that aren't stack locals
static uint32_t objectID = 0;
static uint32_t object = 0;
static uint32_t cleanup_cookie = 0;
/* 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*, IBinder*)>> gIBinderOperations =
{[](FuzzedDataProvider*, IBinder* ibinder) -> void { ibinder->getInterfaceDescriptor(); },
[](FuzzedDataProvider*, IBinder* ibinder) -> void { ibinder->isBinderAlive(); },
[](FuzzedDataProvider*, IBinder* ibinder) -> void { ibinder->pingBinder(); },
[](FuzzedDataProvider* fdp, IBinder* ibinder) -> void {
int fd = STDOUT_FILENO;
std::string rand_str = fdp->ConsumeRandomLengthString(fdp->remaining_bytes());
Vector<String16> args;
args.push(String16(rand_str.c_str()));
ibinder->dump(fd, args);
},
[](FuzzedDataProvider* fdp, IBinder* ibinder) -> void {
objectID = fdp->ConsumeIntegral<uint32_t>();
object = fdp->ConsumeIntegral<uint32_t>();
cleanup_cookie = fdp->ConsumeIntegral<uint32_t>();
IBinder::object_cleanup_func func = IBinder::object_cleanup_func();
ibinder->attachObject(fdp->ConsumeBool() ? reinterpret_cast<void*>(&objectID)
: nullptr,
fdp->ConsumeBool() ? reinterpret_cast<void*>(&object) : nullptr,
fdp->ConsumeBool() ? reinterpret_cast<void*>(&cleanup_cookie)
: nullptr,
func);
},
[](FuzzedDataProvider* fdp, IBinder* ibinder) -> void {
uint32_t id = fdp->ConsumeIntegral<uint32_t>();
ibinder->findObject(reinterpret_cast<void*>(&id));
},
[](FuzzedDataProvider* fdp, IBinder* ibinder) -> void {
uint32_t id = fdp->ConsumeIntegral<uint32_t>();
ibinder->detachObject(reinterpret_cast<void*>(&id));
},
[](FuzzedDataProvider* fdp, IBinder* ibinder) -> void {
uint32_t code = fdp->ConsumeIntegral<uint32_t>();
Parcel p_data;
Parcel reply;
uint32_t flags = fdp->ConsumeIntegral<uint32_t>();
ibinder->transact(code, p_data, &reply, flags);
}};
} // namespace android
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