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133 lines
3.8 KiB
133 lines
3.8 KiB
/*
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* Copyright 2018, 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 "bridge.h"
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#include "bridge_builder.h"
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#include "commander.h"
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#include "commands/wifi_command.h"
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#include "log.h"
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#include "monitor.h"
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#include "poller.h"
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#include "utils.h"
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#include "wifi_forwarder.h"
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <cutils/properties.h>
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#include <functional>
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static const char kBridgeName[] = "br0";
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static const char kNetworkBridgedProperty[] = "vendor.network.bridged";
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static void usage(const char* name) {
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LOGE("Usage: %s --if-prefix <prefix> --bridge <if1,if2,...>", name);
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LOGE(" <prefix> indicates the name of network interfaces to configure.");
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LOGE(" <ip/mask> is the base IP address to assign to the first interface");
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LOGE(" and mask indicates the netmask and broadcast to set.");
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LOGE(" Additionally mask is used to determine the address");
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LOGE(" for the second interface by skipping ahead one subnet");
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LOGE(" and the size of the subnet is indicated by <mask>");
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}
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static Result addBridgeInterfaces(Bridge& bridge, const char* interfaces) {
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std::vector<std::string> ifNames = explode(interfaces, ',');
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for (const auto& ifName : ifNames) {
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Result res = bridge.addInterface(ifName);
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if (!res) {
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return res;
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}
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}
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return Result::success();
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}
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int main(int argc, char* argv[]) {
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const char* interfacePrefix = nullptr;
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const char* bridgeInterfaces = nullptr;
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for (int i = 1; i < argc; ++i) {
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if (strcmp(argv[i], "--if-prefix") == 0 && i + 1 < argc) {
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interfacePrefix = argv[++i];
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} else if (strcmp(argv[i], "--bridge") == 0 && i + 1 < argc) {
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bridgeInterfaces = argv[++i];
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} else {
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LOGE("Unknown parameter '%s'", argv[i]);
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usage(argv[0]);
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return 1;
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}
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}
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if (interfacePrefix == nullptr) {
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LOGE("Missing parameter --if-prefix");
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}
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if (bridgeInterfaces == nullptr) {
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LOGE("Missing parameter --bridge");
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}
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if (interfacePrefix == nullptr || bridgeInterfaces == nullptr) {
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usage(argv[0]);
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return 1;
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}
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Bridge bridge(kBridgeName);
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Result res = bridge.init();
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if (!res) {
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LOGE("%s", res.c_str());
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return 1;
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}
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res = addBridgeInterfaces(bridge, bridgeInterfaces);
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if (!res) {
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LOGE("%s", res.c_str());
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return 1;
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}
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BridgeBuilder bridgeBuilder(bridge, interfacePrefix);
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property_set(kNetworkBridgedProperty, "1");
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Monitor monitor;
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monitor.setOnInterfaceState(std::bind(&BridgeBuilder::onInterfaceState,
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&bridgeBuilder,
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std::placeholders::_1,
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std::placeholders::_2,
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std::placeholders::_3));
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res = monitor.init();
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if (!res) {
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LOGE("%s", res.c_str());
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return 1;
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}
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Commander commander;
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res = commander.init();
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if (!res) {
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LOGE("%s", res.c_str());
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return 1;
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}
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WifiCommand wifiCommand(bridge);
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commander.registerCommand("wifi", &wifiCommand);
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Poller poller;
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poller.addPollable(&monitor);
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poller.addPollable(&commander);
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return poller.run();
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}
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