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89 lines
2.7 KiB
89 lines
2.7 KiB
/*
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* Copyright (C) 2016 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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#define LOG_TAG "ShellCallback"
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#include <unistd.h>
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#include <fcntl.h>
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#include <binder/IShellCallback.h>
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#include <utils/Log.h>
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#include <binder/Parcel.h>
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#include <utils/String8.h>
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namespace android {
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// ----------------------------------------------------------------------
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class BpShellCallback : public BpInterface<IShellCallback>
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{
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public:
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explicit BpShellCallback(const sp<IBinder>& impl)
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: BpInterface<IShellCallback>(impl)
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{
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}
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virtual int openFile(const String16& path, const String16& seLinuxContext,
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const String16& mode) {
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Parcel data, reply;
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data.writeInterfaceToken(IShellCallback::getInterfaceDescriptor());
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data.writeString16(path);
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data.writeString16(seLinuxContext);
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data.writeString16(mode);
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remote()->transact(OP_OPEN_OUTPUT_FILE, data, &reply, 0);
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reply.readExceptionCode();
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int fd = reply.readParcelFileDescriptor();
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return fd >= 0 ? fcntl(fd, F_DUPFD_CLOEXEC, 0) : fd;
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}
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};
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IMPLEMENT_META_INTERFACE(ShellCallback, "com.android.internal.os.IShellCallback")
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// ----------------------------------------------------------------------
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// NOLINTNEXTLINE(google-default-arguments)
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status_t BnShellCallback::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case OP_OPEN_OUTPUT_FILE: {
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CHECK_INTERFACE(IShellCallback, data, reply);
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String16 path(data.readString16());
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String16 seLinuxContext(data.readString16());
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String16 mode(data.readString16());
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int fd = openFile(path, seLinuxContext, mode);
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if (reply != nullptr) {
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reply->writeNoException();
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if (fd >= 0) {
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reply->writeInt32(1);
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reply->writeParcelFileDescriptor(fd, true);
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} else {
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reply->writeInt32(0);
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}
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} else if (fd >= 0) {
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close(fd);
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}
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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} // namespace android
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