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tests/node_modules/wireless-tools/wpa_supplicant.js

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+/*
+ * Copyright (c) 2015 Christopher M. Baker
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+var child_process = require('child_process');
+
+/**
+ * The **wpa_supplicant** command is used to configure a wireless
+ * network connection for a network interface.
+ *
+ * @static
+ * @category wpa_supplicant
+ *
+ */
+var wpa_supplicant = module.exports = {
+  exec: child_process.exec,
+  disable: disable,
+  enable: enable,
+  manual: manual
+};
+
+/**
+ * The **wpa_supplicant disable** command is used to disconnect from
+ * a wireless network on a specific network interface.
+ *
+ * @static
+ * @category wpa_supplicant
+ * @param {string} interface The network interface.
+ * @param {function} callback The callback function.
+ * @returns {process} The child process.
+ * @example
+ *
+ * var wpa_supplicant = require('wireless-tools/wpa_supplicant');
+ *
+ * wpa_supplicant.disable('wlan0', function(err) {
+ *   // disconnected from wireless network
+ * });
+ *
+ */
+function disable(interface, callback) {
+  var command = 'kill `pgrep -f "wpa_supplicant -i ' +
+    interface + ' .*"` || true';
+
+  return this.exec(command, callback);
+}
+
+/**
+ * The **wpa_supplicant enable** command is used to join a wireless network
+ * on a specific network interface.
+ *
+ * @static
+ * @category wpa_supplicant
+ * @param {object} options The wireless network configuration.
+ * @param {function} callback The callback function.
+ * @returns {process} The child process.
+ * @example
+ *
+ * var wpa_supplicant = require('wireless-tools/wpa_supplicant');
+ *
+ * var options = {
+ *   interface: 'wlan0',
+ *   ssid: 'RaspberryPi',
+ *   passphrase: 'raspberry',
+ *   driver: 'wext'
+ * };
+ *
+ * wpa_supplicant.enable(options, function(err) {
+ *   // connected to the wireless network
+ * });
+ *
+ */
+function enable(options, callback) {
+  var file = options.interface + '-wpa_supplicant.conf';
+
+  var command = 'wpa_passphrase "' + options.ssid + '" "' + options.passphrase
+    + '" > ' + file + ' && wpa_supplicant -i ' + options.interface + ' -B -D '
+    + options.driver + ' -c ' + file + ' && rm -f ' + file;
+
+  return this.exec(command, callback);
+}
+
+/**
+ * launchs wpa manually (as if it were launched by ifup if interface wpa setup
+ * was done in /network/interfaces)
+ * /sbin/wpa_supplicant -s -B -P /run/wpa_supplicant.wlan0.pid -i wlan0 -D nl80211,wext -C /run/wpa_supplicant
+ * options = {
+ *     interface: 'wlan0',
+ *     drivers: [ 'nl80211', 'wext' ]
+ * }
+ */
+function manual(options, callback) {
+  var command = [
+    'wpa_supplicant',
+    '-i', options.interface,
+    '-s -B -P /run/wpa_supplicant/' + options.interface + '.pid',
+    '-D', options.drivers.join(','),
+    '-C /run/wpa_supplicant'
+  ].join(' ');
+
+  return this.exec(command, callback);
+}
+
+