595 lines
18 KiB
JavaScript
595 lines
18 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.EXPORTED_SYMBOLS = ["WifiCommand"];
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import("resource://gre/modules/systemlibs.js");
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const SUPP_PROP = "init.svc.wpa_supplicant";
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const WPA_SUPPLICANT = "wpa_supplicant";
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const DEBUG = false;
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this.WifiCommand = function(aControlMessage, aInterface, aSdkVersion) {
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function debug(msg) {
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if (DEBUG) {
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dump('-------------- WifiCommand: ' + msg);
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}
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}
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var command = {};
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//-------------------------------------------------
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// Utilities.
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//-------------------------------------------------
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command.getSdkVersion = function() {
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return aSdkVersion;
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};
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//-------------------------------------------------
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// General commands.
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//-------------------------------------------------
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command.loadDriver = function (callback) {
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voidControlMessage("load_driver", function(status) {
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callback(status);
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});
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};
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command.unloadDriver = function (callback) {
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voidControlMessage("unload_driver", function(status) {
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callback(status);
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});
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};
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command.startSupplicant = function (callback) {
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voidControlMessage("start_supplicant", callback);
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};
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command.killSupplicant = function (callback) {
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// It is interesting to note that this function does exactly what
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// wifi_stop_supplicant does. Unforunately, on the Galaxy S2, Samsung
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// changed that function in a way that means that it doesn't recognize
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// wpa_supplicant as already running. Therefore, we have to roll our own
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// version here.
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stopProcess(SUPP_PROP, WPA_SUPPLICANT, callback);
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};
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command.terminateSupplicant = function (callback) {
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doBooleanCommand("TERMINATE", "OK", callback);
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};
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command.stopSupplicant = function (callback) {
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voidControlMessage("stop_supplicant", callback);
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};
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command.listNetworks = function (callback) {
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doStringCommand("LIST_NETWORKS", callback);
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};
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command.addNetwork = function (callback) {
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doIntCommand("ADD_NETWORK", callback);
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};
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command.setNetworkVariable = function (netId, name, value, callback) {
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doBooleanCommand("SET_NETWORK " + netId + " " + name + " " +
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value, "OK", callback);
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};
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command.getNetworkVariable = function (netId, name, callback) {
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doStringCommand("GET_NETWORK " + netId + " " + name, callback);
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};
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command.removeNetwork = function (netId, callback) {
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doBooleanCommand("REMOVE_NETWORK " + netId, "OK", callback);
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};
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command.enableNetwork = function (netId, disableOthers, callback) {
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doBooleanCommand((disableOthers ? "SELECT_NETWORK " : "ENABLE_NETWORK ") +
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netId, "OK", callback);
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};
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command.disableNetwork = function (netId, callback) {
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doBooleanCommand("DISABLE_NETWORK " + netId, "OK", callback);
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};
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command.status = function (callback) {
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doStringCommand("STATUS", callback);
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};
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command.ping = function (callback) {
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doBooleanCommand("PING", "PONG", callback);
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};
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command.scanResults = function (callback) {
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doStringCommand("SCAN_RESULTS", callback);
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};
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command.disconnect = function (callback) {
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doBooleanCommand("DISCONNECT", "OK", callback);
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};
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command.reconnect = function (callback) {
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doBooleanCommand("RECONNECT", "OK", callback);
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};
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command.reassociate = function (callback) {
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doBooleanCommand("REASSOCIATE", "OK", callback);
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};
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command.setBackgroundScan = function (enable, callback) {
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doBooleanCommand("SET pno " + (enable ? "1" : "0"),
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"OK",
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function(ok) {
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callback(true, ok);
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});
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};
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command.doSetScanMode = function (setActive, callback) {
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doBooleanCommand(setActive ?
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"DRIVER SCAN-ACTIVE" :
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"DRIVER SCAN-PASSIVE", "OK", callback);
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};
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command.scan = function (callback) {
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doBooleanCommand("SCAN", "OK", callback);
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};
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command.setLogLevel = function (level, callback) {
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doBooleanCommand("LOG_LEVEL " + level, "OK", callback);
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};
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command.getLogLevel = function (callback) {
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doStringCommand("LOG_LEVEL", callback);
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};
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command.wpsPbc = function (callback, iface) {
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let cmd = 'WPS_PBC';
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// If the network interface is specified and we are based on JB,
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// append the argument 'interface=[iface]' to the supplicant command.
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//
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// Note: The argument "interface" is only required for wifi p2p on JB.
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// For other cases, the argument is useless and even leads error.
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// Check the evil work here:
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// http://androidxref.com/4.2.2_r1/xref/external/wpa_supplicant_8/wpa_supplicant/ctrl_iface_unix.c#172
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//
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if (iface && isJellybean()) {
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cmd += (' inferface=' + iface);
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}
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doBooleanCommand(cmd, "OK", callback);
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};
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command.wpsPin = function (detail, callback) {
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let cmd = 'WPS_PIN ';
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// See the comment above in wpsPbc().
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if (detail.iface && isJellybean()) {
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cmd += ('inferface=' + iface + ' ');
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}
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cmd += (detail.bssid === undefined ? "any" : detail.bssid);
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cmd += (detail.pin === undefined ? "" : (" " + detail.pin));
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doStringCommand(cmd, callback);
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};
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command.wpsCancel = function (callback) {
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doBooleanCommand("WPS_CANCEL", "OK", callback);
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};
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command.startDriver = function (callback) {
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doBooleanCommand("DRIVER START", "OK");
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};
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command.stopDriver = function (callback) {
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doBooleanCommand("DRIVER STOP", "OK");
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};
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command.startPacketFiltering = function (callback) {
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var commandChain = ["DRIVER RXFILTER-ADD 0",
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"DRIVER RXFILTER-ADD 1",
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"DRIVER RXFILTER-ADD 3",
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"DRIVER RXFILTER-START"];
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doBooleanCommandChain(commandChain, callback);
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};
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command.stopPacketFiltering = function (callback) {
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var commandChain = ["DRIVER RXFILTER-STOP",
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"DRIVER RXFILTER-REMOVE 3",
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"DRIVER RXFILTER-REMOVE 1",
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"DRIVER RXFILTER-REMOVE 0"];
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doBooleanCommandChain(commandChain, callback);
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};
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command.doGetRssi = function (cmd, callback) {
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doCommand(cmd, function(data) {
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var rssi = -200;
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if (!data.status) {
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// If we are associating, the reply is "OK".
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var reply = data.reply;
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if (reply !== "OK") {
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// Format is: <SSID> rssi XX". SSID can contain spaces.
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var offset = reply.lastIndexOf("rssi ");
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if (offset !== -1) {
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rssi = reply.substr(offset + 5) | 0;
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}
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}
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}
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callback(rssi);
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});
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};
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command.getRssi = function (callback) {
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command.doGetRssi("DRIVER RSSI", callback);
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};
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command.getRssiApprox = function (callback) {
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command.doGetRssi("DRIVER RSSI-APPROX", callback);
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};
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command.getLinkSpeed = function (callback) {
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doStringCommand("DRIVER LINKSPEED", function(reply) {
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if (reply) {
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reply = reply.split(" ")[1] | 0; // Format: LinkSpeed XX
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}
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callback(reply);
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});
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};
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let infoKeys = [{regexp: /RSSI=/i, prop: 'rssi'},
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{regexp: /LINKSPEED=/i, prop: 'linkspeed'}];
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command.getConnectionInfoICS = function (callback) {
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doStringCommand("SIGNAL_POLL", function(reply) {
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if (!reply) {
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callback(null);
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return;
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}
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// Find any values matching |infoKeys|. This gets executed frequently
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// enough that we want to avoid creating intermediate strings as much as
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// possible.
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let rval = {};
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for (let i = 0; i < infoKeys.length; i++) {
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let re = infoKeys[i].regexp;
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let iKeyStart = reply.search(re);
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if (iKeyStart !== -1) {
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let prop = infoKeys[i].prop;
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let iValueStart = reply.indexOf('=', iKeyStart) + 1;
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let iNewlineAfterValue = reply.indexOf('\n', iValueStart);
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let iValueEnd = iNewlineAfterValue !== -1
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? iNewlineAfterValue
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: reply.length;
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rval[prop] = reply.substring(iValueStart, iValueEnd) | 0;
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}
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}
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callback(rval);
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});
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};
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command.getMacAddress = function (callback) {
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doStringCommand("DRIVER MACADDR", function(reply) {
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if (reply) {
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reply = reply.split(" ")[2]; // Format: Macaddr = XX.XX.XX.XX.XX.XX
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}
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callback(reply);
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});
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};
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command.connectToHostapd = function(callback) {
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voidControlMessage("connect_to_hostapd", callback);
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};
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command.closeHostapdConnection = function(callback) {
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voidControlMessage("close_hostapd_connection", callback);
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};
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command.hostapdCommand = function (callback, request) {
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var msg = { cmd: "hostapd_command",
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request: request,
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iface: aInterface };
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aControlMessage(msg, function(data) {
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callback(data.status ? null : data.reply);
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});
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};
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command.hostapdGetStations = function (callback) {
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var msg = { cmd: "hostapd_get_stations",
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iface: aInterface };
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aControlMessage(msg, function(data) {
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callback(data.status);
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});
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};
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command.setPowerModeICS = function (mode, callback) {
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doBooleanCommand("DRIVER POWERMODE " + (mode === "AUTO" ? 0 : 1), "OK", callback);
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};
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command.setPowerModeJB = function (mode, callback) {
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doBooleanCommand("SET ps " + (mode === "AUTO" ? 1 : 0), "OK", callback);
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};
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command.getPowerMode = function (callback) {
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doStringCommand("DRIVER GETPOWER", function(reply) {
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if (reply) {
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reply = (reply.split()[2]|0); // Format: powermode = XX
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}
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callback(reply);
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});
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};
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command.setNumAllowedChannels = function (numChannels, callback) {
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doBooleanCommand("DRIVER SCAN-CHANNELS " + numChannels, "OK", callback);
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};
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command.getNumAllowedChannels = function (callback) {
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doStringCommand("DRIVER SCAN-CHANNELS", function(reply) {
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if (reply) {
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reply = (reply.split()[2]|0); // Format: Scan-Channels = X
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}
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callback(reply);
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});
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};
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command.setBluetoothCoexistenceMode = function (mode, callback) {
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doBooleanCommand("DRIVER BTCOEXMODE " + mode, "OK", callback);
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};
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command.setBluetoothCoexistenceScanMode = function (mode, callback) {
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doBooleanCommand("DRIVER BTCOEXSCAN-" + (mode ? "START" : "STOP"),
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"OK", callback);
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};
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command.saveConfig = function (callback) {
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// Make sure we never write out a value for AP_SCAN other than 1.
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doBooleanCommand("AP_SCAN 1", "OK", function(ok) {
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doBooleanCommand("SAVE_CONFIG", "OK", callback);
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});
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};
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command.reloadConfig = function (callback) {
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doBooleanCommand("RECONFIGURE", "OK", callback);
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};
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command.setScanResultHandling = function (mode, callback) {
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doBooleanCommand("AP_SCAN " + mode, "OK", callback);
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};
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command.addToBlacklist = function (bssid, callback) {
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doBooleanCommand("BLACKLIST " + bssid, "OK", callback);
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};
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command.clearBlacklist = function (callback) {
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doBooleanCommand("BLACKLIST clear", "OK", callback);
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};
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command.setSuspendOptimizationsICS = function (enabled, callback) {
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doBooleanCommand("DRIVER SETSUSPENDOPT " + (enabled ? 0 : 1),
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"OK", callback);
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};
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command.setSuspendOptimizationsJB = function (enabled, callback) {
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doBooleanCommand("DRIVER SETSUSPENDMODE " + (enabled ? 1 : 0),
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"OK", callback);
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};
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command.connectToSupplicant = function(callback) {
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voidControlMessage("connect_to_supplicant", callback);
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};
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command.closeSupplicantConnection = function(callback) {
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voidControlMessage("close_supplicant_connection", callback);
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};
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command.getMacAddress = function(callback) {
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doStringCommand("DRIVER MACADDR", function(reply) {
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if (reply) {
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reply = reply.split(" ")[2]; // Format: Macaddr = XX.XX.XX.XX.XX.XX
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}
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callback(reply);
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});
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};
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command.setDeviceName = function(deviceName, callback) {
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doBooleanCommand("SET device_name " + deviceName, "OK", callback);
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};
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//-------------------------------------------------
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// P2P commands.
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//-------------------------------------------------
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command.p2pProvDiscovery = function(address, wpsMethod, callback) {
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var command = "P2P_PROV_DISC " + address + " " + wpsMethod;
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doBooleanCommand(command, "OK", callback);
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};
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command.p2pConnect = function(config, callback) {
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var command = "P2P_CONNECT " + config.address + " " + config.wpsMethodWithPin + " ";
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if (config.joinExistingGroup) {
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command += "join";
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} else {
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command += "go_intent=" + config.goIntent;
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}
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debug('P2P connect command: ' + command);
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doBooleanCommand(command, "OK", callback);
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};
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command.p2pGroupRemove = function(iface, callback) {
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debug("groupRemove()");
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doBooleanCommand("P2P_GROUP_REMOVE " + iface, "OK", callback);
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};
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command.p2pEnable = function(detail, callback) {
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var commandChain = ["SET device_name " + detail.deviceName,
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"SET device_type " + detail.deviceType,
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"SET config_methods " + detail.wpsMethods,
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"P2P_SET conc_pref sta",
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"P2P_FLUSH"];
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doBooleanCommandChain(commandChain, callback);
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};
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command.p2pDisable = function(callback) {
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doBooleanCommand("P2P_SET disabled 1", "OK", callback);
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};
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command.p2pEnableScan = function(timeout, callback) {
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doBooleanCommand("P2P_FIND " + timeout, "OK", callback);
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};
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command.p2pDisableScan = function(callback) {
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doBooleanCommand("P2P_STOP_FIND", "OK", callback);
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};
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command.p2pGetGroupCapab = function(address, callback) {
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command.p2pPeer(address, function(reply) {
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debug('p2p_peer reply: ' + reply);
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if (!reply) {
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callback(0);
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return;
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}
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var capab = /group_capab=0x([0-9a-fA-F]+)/.exec(reply)[1];
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if (!capab) {
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callback(0);
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} else {
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callback(parseInt(capab, 16));
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}
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});
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};
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command.p2pPeer = function(address, callback) {
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doStringCommand("P2P_PEER " + address, callback);
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};
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command.p2pGroupAdd = function(netId, callback) {
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doBooleanCommand("P2P_GROUP_ADD persistent=" + netId, callback);
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};
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command.p2pReinvoke = function(netId, address, callback) {
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doBooleanCommand("P2P_INVITE persistent=" + netId + " peer=" + address, "OK", callback);
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};
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//----------------------------------------------------------
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// Private stuff.
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//----------------------------------------------------------
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function voidControlMessage(cmd, callback) {
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aControlMessage({ cmd: cmd, iface: aInterface }, function (data) {
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callback(data.status);
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});
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}
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function doCommand(request, callback) {
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var msg = { cmd: "command",
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request: request,
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iface: aInterface };
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aControlMessage(msg, callback);
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}
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function doIntCommand(request, callback) {
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doCommand(request, function(data) {
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callback(data.status ? -1 : (data.reply|0));
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});
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}
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function doBooleanCommand(request, expected, callback) {
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doCommand(request, function(data) {
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callback(data.status ? false : (data.reply === expected));
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});
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}
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function doStringCommand(request, callback) {
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doCommand(request, function(data) {
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callback(data.status ? null : data.reply);
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});
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}
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function doBooleanCommandChain(commandChain, callback, i) {
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if (undefined === i) {
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i = 0;
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}
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doBooleanCommand(commandChain[i], "OK", function(ok) {
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if (!ok) {
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return callback(false);
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}
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i++;
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if (i === commandChain.length || !commandChain[i]) {
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// Reach the end or empty command.
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return callback(true);
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}
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doBooleanCommandChain(commandChain, callback, i);
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});
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}
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//--------------------------------------------------
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// Helper functions.
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//--------------------------------------------------
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function stopProcess(service, process, callback) {
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var count = 0;
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|
var timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
|
|
function tick() {
|
|
let result = libcutils.property_get(service);
|
|
if (result === null) {
|
|
callback();
|
|
return;
|
|
}
|
|
if (result === "stopped" || ++count >= 5) {
|
|
// Either we succeeded or ran out of time.
|
|
timer = null;
|
|
callback();
|
|
return;
|
|
}
|
|
|
|
// Else it's still running, continue waiting.
|
|
timer.initWithCallback(tick, 1000, Ci.nsITimer.TYPE_ONE_SHOT);
|
|
}
|
|
|
|
setProperty("ctl.stop", process, tick);
|
|
}
|
|
|
|
// Wrapper around libcutils.property_set that returns true if setting the
|
|
// value was successful.
|
|
// Note that the callback is not called asynchronously.
|
|
function setProperty(key, value, callback) {
|
|
let ok = true;
|
|
try {
|
|
libcutils.property_set(key, value);
|
|
} catch(e) {
|
|
ok = false;
|
|
}
|
|
callback(ok);
|
|
}
|
|
|
|
function isJellybean() {
|
|
// According to http://developer.android.com/guide/topics/manifest/uses-sdk-element.html
|
|
// ----------------------------------------------------
|
|
// | Platform Version | API Level | VERSION_CODE |
|
|
// ----------------------------------------------------
|
|
// | Android 4.1, 4.1.1 | 16 | JELLY_BEAN_MR2 |
|
|
// | Android 4.2, 4.2.2 | 17 | JELLY_BEAN_MR1 |
|
|
// | Android 4.3 | 18 | JELLY_BEAN |
|
|
// ----------------------------------------------------
|
|
return aSdkVersion === 16 || aSdkVersion === 17 || aSdkVersion === 18;
|
|
}
|
|
|
|
return command;
|
|
};
|