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/*
* Copyright (C) 2017 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.
*/
#include "minijail.h"
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>
#include <libminijail.h>
#include <scoped_minijail.h>
#include <android/log.h>
#ifndef LOG_TAG
#define LOG_TAG "minijail"
#endif
#define ALOGE(...) __android_log_print(ANDROID_LOG_ERROR , LOG_TAG, __VA_ARGS__)
/*
* Class: com_android_tv_tuner_exoplayer_ffmpeg_FfmpegDecoderService
* Method: nativeSetupMinijail
* Signature: (I)V
*/
JNIEXPORT void JNICALL
Java_com_android_tv_tuner_exoplayer_ffmpeg_FfmpegDecoderService_nativeSetupMinijail
(JNIEnv *, jobject, jint policyFd) {
ScopedMinijail jail{minijail_new()};
if (!jail) {
ALOGE("Failed to create minijail");
}
minijail_no_new_privs(jail.get());
minijail_log_seccomp_filter_failures(jail.get());
minijail_use_seccomp_filter(jail.get());
minijail_set_seccomp_filter_tsync(jail.get());
// Transfer ownership of |policy_fd|.
minijail_parse_seccomp_filters_from_fd(jail.get(), policyFd);
minijail_enter(jail.get());
close(policyFd);
}
/*
* Class: com_android_tv_tuner_exoplayer_ffmpeg_FfmpegDecoderService
* Method: nativeTestMinijail
* Signature: ()V
*/
JNIEXPORT void JNICALL
Java_com_android_tv_tuner_exoplayer_ffmpeg_FfmpegDecoderService_nativeTestMinijail
(JNIEnv *, jobject) {
kill(getpid(), SIGUSR1);
}
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