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