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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 <IBinderFuzzFunctions.h>
#include <fuzzer/FuzzedDataProvider.h>
#include <binder/BpBinder.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 <stdio.h>
namespace android {
// Static variable to reference so we don't consume a bunch of memory to link and
// unlink DeathRecipients.
static int8_t kBpBinderCookie = 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*, const sp<BpBinder>&,
const sp<IBinder::DeathRecipient>&)>>
gBPBinderOperations =
{[](FuzzedDataProvider* fdp, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>& s_recipient) -> void {
// Clean up possible leftover memory.
wp<IBinder::DeathRecipient> outRecipient(nullptr);
if (!bpbinder->isRpcBinder()) bpbinder->sendObituary();
bpbinder->unlinkToDeath(nullptr, reinterpret_cast<void*>(&kBpBinderCookie), 0,
&outRecipient);
uint32_t flags = fdp->ConsumeIntegral<uint32_t>();
kBpBinderCookie = fdp->ConsumeIntegral<int8_t>();
bpbinder->linkToDeath(s_recipient.get(),
reinterpret_cast<void*>(&kBpBinderCookie), flags);
},
[](FuzzedDataProvider* fdp, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void {
wp<IBinder::DeathRecipient> out_recipient(nullptr);
uint32_t flags = fdp->ConsumeIntegral<uint32_t>();
int8_t random_cookie = fdp->ConsumeIntegral<int8_t>();
bpbinder->unlinkToDeath(nullptr, reinterpret_cast<void*>(&random_cookie),
flags, &out_recipient);
},
[](FuzzedDataProvider*, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void { bpbinder->remoteBinder(); },
[](FuzzedDataProvider*, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void {
if (!bpbinder->isRpcBinder()) bpbinder->sendObituary();
},
[](FuzzedDataProvider* fdp, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void {
uint32_t uid = fdp->ConsumeIntegral<uint32_t>();
bpbinder->getBinderProxyCount(uid);
},
[](FuzzedDataProvider*, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void { bpbinder->enableCountByUid(); },
[](FuzzedDataProvider*, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void { bpbinder->disableCountByUid(); },
[](FuzzedDataProvider*, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void {
Vector<uint32_t> uids;
Vector<uint32_t> counts;
bpbinder->getCountByUid(uids, counts);
},
[](FuzzedDataProvider* fdp, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void {
bool enable = fdp->ConsumeBool();
bpbinder->setCountByUidEnabled(enable);
},
[](FuzzedDataProvider*, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void {
binder_proxy_limit_callback cb = binder_proxy_limit_callback();
bpbinder->setLimitCallback(cb);
},
[](FuzzedDataProvider* fdp, const sp<BpBinder>& bpbinder,
const sp<IBinder::DeathRecipient>&) -> void {
int high = fdp->ConsumeIntegral<int>();
int low = fdp->ConsumeIntegral<int>();
bpbinder->setBinderProxyCountWatermarks(high, low);
}};
} // namespace android
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