96 lines
3.2 KiB
C++
96 lines
3.2 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 <binder/IPCThreadState.h>
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#include <hidl/HidlTransportSupport.h>
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#include <hwbinder/IPCThreadState.h>
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#include "Controllers.h"
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#include "Fwmark.h"
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#include "NetdHwService.h"
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using android::hardware::configureRpcThreadpool;
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using android::hardware::IPCThreadState;
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using android::hardware::Void;
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namespace android {
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namespace net {
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/**
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* This lock exists to make NetdHwService RPCs (which come in on multiple HwBinder threads)
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* coexist with the commands in CommandListener.cpp. These are presumed not thread-safe because
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* CommandListener has only one user (NetworkManagementService), which is connected through a
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* FrameworkListener that passes in commands one at a time.
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*/
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extern android::RWLock gBigNetdLock;
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static INetd::StatusCode toHalStatus(int ret) {
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switch(ret) {
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case 0:
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return INetd::StatusCode::OK;
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case -EINVAL:
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return INetd::StatusCode::INVALID_ARGUMENTS;
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case -EEXIST:
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return INetd::StatusCode::ALREADY_EXISTS;
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case -ENONET:
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return INetd::StatusCode::NO_NETWORK;
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case -EPERM:
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return INetd::StatusCode::PERMISSION_DENIED;
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default:
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ALOGE("HAL service error=%d", ret);
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return INetd::StatusCode::UNKNOWN_ERROR;
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}
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}
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// Minimal service start.
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status_t NetdHwService::start() {
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IPCThreadState::self()->disableBackgroundScheduling(true);
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// Usage of this HAL is anticipated to be thin; one thread should suffice.
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configureRpcThreadpool(1, false /* callerWillNotJoin */);
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// Register hardware service with ServiceManager.
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return INetd::registerAsService();
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}
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Return<void> NetdHwService::createOemNetwork(createOemNetwork_cb _hidl_cb) {
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unsigned netId;
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Permission permission = PERMISSION_SYSTEM;
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android::RWLock::AutoWLock _lock(gBigNetdLock);
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int ret = gCtls->netCtrl.createPhysicalOemNetwork(permission, &netId);
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Fwmark fwmark;
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fwmark.netId = netId;
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fwmark.explicitlySelected = true;
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fwmark.protectedFromVpn = true;
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fwmark.permission = PERMISSION_SYSTEM;
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_hidl_cb(netIdToNetHandle(netId), fwmark.intValue, toHalStatus(ret));
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return Void();
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}
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Return<INetd::StatusCode> NetdHwService::destroyOemNetwork(uint64_t netHandle) {
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unsigned netId = netHandleToNetId(netHandle);
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if ((netId < NetworkController::MIN_OEM_ID) ||
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(netId > NetworkController::MAX_OEM_ID)) {
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return INetd::StatusCode::INVALID_ARGUMENTS;
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}
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android::RWLock::AutoWLock _lock(gBigNetdLock);
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return toHalStatus(gCtls->netCtrl.destroyNetwork(netId));
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}
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} // namespace net
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} // namespace android
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