250 lines
6.0 KiB
JavaScript
250 lines
6.0 KiB
JavaScript
/*
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* Copyright (c) 2015 Christopher M. Baker
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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var child_process = require('child_process');
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/**
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* The **ifconfig** command is used to configure network interfaces.
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*
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* @static
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* @category ifconfig
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*
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*/
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var ifconfig = module.exports = {
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exec: child_process.exec,
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status: status,
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down: down,
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up: up
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};
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/**
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* Parses the status for a single network interface.
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*
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* @private
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* @static
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* @category ifconfig
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* @param {string} block The section of stdout for the interface.
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* @returns {object} The parsed network interface status.
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*
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*/
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function parse_status_block(block) {
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var match;
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var parsed = {
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interface: block.match(/^([^\s]+)/)[1]
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};
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if ((match = block.match(/Link encap:\s*([^\s]+)/))) {
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parsed.link = match[1].toLowerCase();
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}
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if ((match = block.match(/HWaddr\s+([^\s]+)/))) {
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parsed.address = match[1].toLowerCase();
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}
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if ((match = block.match(/inet6\s+addr:\s*([^\s]+)/))) {
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parsed.ipv6_address = match[1];
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}
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if ((match = block.match(/inet\s+addr:\s*([^\s]+)/))) {
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parsed.ipv4_address = match[1];
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}
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if ((match = block.match(/Bcast:\s*([^\s]+)/))) {
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parsed.ipv4_broadcast = match[1];
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}
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if ((match = block.match(/Mask:\s*([^\s]+)/))) {
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parsed.ipv4_subnet_mask = match[1];
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}
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if ((match = block.match(/UP/))) {
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parsed.up = true;
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}
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if ((match = block.match(/BROADCAST/))) {
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parsed.broadcast = true;
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}
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if ((match = block.match(/RUNNING/))) {
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parsed.running = true;
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}
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if ((match = block.match(/MULTICAST/))) {
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parsed.multicast = true;
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}
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if ((match = block.match(/LOOPBACK/))) {
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parsed.loopback = true;
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}
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return parsed;
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}
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/**
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* Parses the status for all network interfaces.
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*
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* @private
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* @static
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* @category ifconfig
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* @param {function} callback The callback function.
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*
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*/
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function parse_status(callback) {
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return function(error, stdout, stderr) {
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if (error) callback(error);
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else callback(error,
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stdout.trim().split('\n\n').map(parse_status_block));
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};
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}
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/**
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* Parses the status for a single network interface.
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*
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* @private
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* @static
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* @category ifconfig
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* @param {function} callback The callback function.
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*
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*/
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function parse_status_interface(callback) {
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return function(error, stdout, stderr) {
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if (error) callback(error);
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else callback(error, parse_status_block(stdout.trim()));
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};
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}
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/**
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* The **ifconfig status** command is used to query the status of all
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* configured interfaces.
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*
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* @static
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* @category ifconfig
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* @param {string} [interface] The network interface.
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* @param {function} callback The callback function.
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* @example
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*
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* var ifconfig = require('wireless-tools/ifconfig');
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*
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* ifconfig.status(function(err, status) {
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* console.log(status);
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* });
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*
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* // =>
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* [
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* {
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* interface: 'eth0',
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* link: 'ethernet',
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* address: 'b8:27:eb:da:52:ad',
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* ipv4_address: '192.168.1.2',
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* ipv4_broadcast: '192.168.1.255',
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* ipv4_subnet_mask: '255.255.255.0',
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* up: true,
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* broadcast: true,
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* running: true,
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* multicast: true
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* },
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* {
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* interface: 'lo',
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* link: 'local',
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* ipv4_address: '127.0.0.1',
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* ipv4_subnet_mask: '255.0.0.0',
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* up: true,
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* running: true,
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* loopback: true
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* },
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* {
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* interface: 'wlan0',
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* link: 'ethernet',
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* address: '00:0b:81:95:12:21',
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* ipv4_address: '192.168.10.1',
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* ipv4_broadcast: '192.168.10.255',
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* ipv4_subnet_mask: '255.255.255.0',
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* up: true,
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* broadcast: true,
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* multicast: true
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* }
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* ]
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*
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*/
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function status(interface, callback) {
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if (callback) {
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this.exec('ifconfig ' + interface, parse_status_interface(callback));
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}
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else {
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this.exec('ifconfig -a', parse_status(interface));
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}
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}
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/**
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* The **ifconfig down** command is used to take down an interface that is up.
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*
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* @static
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* @category ifconfig
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* @param {string} interface The network interface.
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* @param {function} callback The callback function.
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* @returns {process} The child process.
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* @example
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*
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* var ifconfig = require('wireless-tools/ifconfig');
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*
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* ifconfig.down('wlan0', function(err) {
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* // the interface is down
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* });
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*
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*/
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function down(interface, callback) {
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return this.exec('ifconfig ' + interface + ' down', callback);
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}
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/**
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* The **ifconfig up** command is used to bring up an interface with the
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* specified configuration.
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*
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* @static
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* @category ifconfig
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* @param {object} options The interface configuration.
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* @param {function} callback The callback function.
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* @returns {process} The child process.
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* @example
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*
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* var options = {
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* interface: 'wlan0',
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* ipv4_address: '192.168.10.1',
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* ipv4_broadcast: '192.168.10.255',
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* ipv4_subnet_mask: '255.255.255.0'
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* };
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*
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* ifconfig.up(options, function(err) {
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* // the interface is up
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* });
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*
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*/
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function up(options, callback) {
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return this.exec('ifconfig ' + options.interface +
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' ' + options.ipv4_address +
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' netmask ' + options.ipv4_subnet_mask +
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' broadcast ' + options.ipv4_broadcast +
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' up', callback);
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}
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