gecko-dev/dom/wifi/WifiCommand.jsm

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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
this.EXPORTED_SYMBOLS = ["WifiCommand"];
const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
Cu.import("resource://gre/modules/systemlibs.js");
const SUPP_PROP = "init.svc.wpa_supplicant";
const WPA_SUPPLICANT = "wpa_supplicant";
const DEBUG = false;
this.WifiCommand = function(aControlMessage, aInterface) {
function debug(msg) {
if (DEBUG) {
dump('-------------- WifiCommand: ' + msg);
}
}
var command = {};
//-------------------------------------------------
// General commands.
//-------------------------------------------------
command.loadDriver = function (callback) {
voidControlMessage("load_driver", function(status) {
callback(status);
});
};
command.unloadDriver = function (callback) {
voidControlMessage("unload_driver", function(status) {
callback(status);
});
};
command.startSupplicant = function (callback) {
voidControlMessage("start_supplicant", callback);
};
command.killSupplicant = function (callback) {
// It is interesting to note that this function does exactly what
// wifi_stop_supplicant does. Unforunately, on the Galaxy S2, Samsung
// changed that function in a way that means that it doesn't recognize
// wpa_supplicant as already running. Therefore, we have to roll our own
// version here.
stopProcess(SUPP_PROP, WPA_SUPPLICANT, callback);
};
command.terminateSupplicant = function (callback) {
doBooleanCommand("TERMINATE", "OK", callback);
};
command.stopSupplicant = function (callback) {
voidControlMessage("stop_supplicant", callback);
};
command.listNetworks = function (callback) {
doStringCommand("LIST_NETWORKS", callback);
};
command.addNetwork = function (callback) {
doIntCommand("ADD_NETWORK", callback);
};
command.setNetworkVariable = function (netId, name, value, callback) {
doBooleanCommand("SET_NETWORK " + netId + " " + name + " " +
value, "OK", callback);
};
command.getNetworkVariable = function (netId, name, callback) {
doStringCommand("GET_NETWORK " + netId + " " + name, callback);
};
command.removeNetwork = function (netId, callback) {
doBooleanCommand("REMOVE_NETWORK " + netId, "OK", callback);
};
command.enableNetwork = function (netId, disableOthers, callback) {
doBooleanCommand((disableOthers ? "SELECT_NETWORK " : "ENABLE_NETWORK ") +
netId, "OK", callback);
};
command.disableNetwork = function (netId, callback) {
doBooleanCommand("DISABLE_NETWORK " + netId, "OK", callback);
};
command.status = function (callback) {
doStringCommand("STATUS", callback);
};
command.ping = function (callback) {
doBooleanCommand("PING", "PONG", callback);
};
command.scanResults = function (callback) {
doStringCommand("SCAN_RESULTS", callback);
};
command.disconnect = function (callback) {
doBooleanCommand("DISCONNECT", "OK", callback);
};
command.reconnect = function (callback) {
doBooleanCommand("RECONNECT", "OK", callback);
};
command.reassociate = function (callback) {
doBooleanCommand("REASSOCIATE", "OK", callback);
};
command.setBackgroundScan = function (enable, callback) {
doBooleanCommand("SET pno " + (enable ? "1" : "0"),
"OK",
function(ok) {
callback(true, ok);
});
};
command.doSetScanMode = function (setActive, callback) {
doBooleanCommand(setActive ?
"DRIVER SCAN-ACTIVE" :
"DRIVER SCAN-PASSIVE", "OK", callback);
};
command.scan = function (callback) {
doBooleanCommand("SCAN", "OK", callback);
};
command.setLogLevel = function (level, callback) {
doBooleanCommand("LOG_LEVEL " + level, "OK", callback);
};
command.getLogLevel = function (callback) {
doStringCommand("LOG_LEVEL", callback);
};
command.wpsPbc = function (iface, callback) {
doBooleanCommand("WPS_PBC" + (iface ? (" interface=" + iface) : ""),
"OK", callback);
};
command.wpsPin = function (detail, callback) {
doStringCommand("WPS_PIN " +
(detail.bssid === undefined ? "any" : detail.bssid) +
(detail.pin === undefined ? "" : (" " + detail.pin)) +
(detail.iface ? (" interface=" + detail.iface) : ""),
callback);
};
command.wpsCancel = function (callback) {
doBooleanCommand("WPS_CANCEL", "OK", callback);
};
command.startDriver = function (callback) {
doBooleanCommand("DRIVER START", "OK");
};
command.stopDriver = function (callback) {
doBooleanCommand("DRIVER STOP", "OK");
};
command.startPacketFiltering = function (callback) {
var commandChain = ["DRIVER RXFILTER-ADD 0",
"DRIVER RXFILTER-ADD 1",
"DRIVER RXFILTER-ADD 3",
"DRIVER RXFILTER-START"];
doBooleanCommandChain(commandChain, callback);
};
command.stopPacketFiltering = function (callback) {
var commandChain = ["DRIVER RXFILTER-STOP",
"DRIVER RXFILTER-REMOVE 3",
"DRIVER RXFILTER-REMOVE 1",
"DRIVER RXFILTER-REMOVE 0"];
doBooleanCommandChain(commandChain, callback);
};
command.doGetRssi = function (cmd, callback) {
doCommand(cmd, function(data) {
var rssi = -200;
if (!data.status) {
// If we are associating, the reply is "OK".
var reply = data.reply;
if (reply !== "OK") {
// Format is: <SSID> rssi XX". SSID can contain spaces.
var offset = reply.lastIndexOf("rssi ");
if (offset !== -1) {
rssi = reply.substr(offset + 5) | 0;
}
}
}
callback(rssi);
});
};
command.getRssi = function (callback) {
command.doGetRssi("DRIVER RSSI", callback);
};
command.getRssiApprox = function (callback) {
command.doGetRssi("DRIVER RSSI-APPROX", callback);
};
command.getLinkSpeed = function (callback) {
doStringCommand("DRIVER LINKSPEED", function(reply) {
if (reply) {
reply = reply.split(" ")[1] | 0; // Format: LinkSpeed XX
}
callback(reply);
});
};
command.getConnectionInfoICS = function (callback) {
doStringCommand("SIGNAL_POLL", function(reply) {
if (!reply) {
callback(null);
return;
}
let rval = {};
var lines = reply.split("\n");
for (let i = 0; i < lines.length; ++i) {
let [key, value] = lines[i].split("=");
switch (key.toUpperCase()) {
case "RSSI":
rval.rssi = value | 0;
break;
case "LINKSPEED":
rval.linkspeed = value | 0;
break;
default:
// Ignore.
}
}
callback(rval);
});
};
command.getMacAddress = function (callback) {
doStringCommand("DRIVER MACADDR", function(reply) {
if (reply) {
reply = reply.split(" ")[2]; // Format: Macaddr = XX.XX.XX.XX.XX.XX
}
callback(reply);
});
};
command.setPowerModeICS = function (mode, callback) {
doBooleanCommand("DRIVER POWERMODE " + (mode === "AUTO" ? 0 : 1), "OK", callback);
};
command.setPowerModeJB = function (mode, callback) {
doBooleanCommand("SET ps " + (mode === "AUTO" ? 1 : 0), "OK", callback);
};
command.getPowerMode = function (callback) {
doStringCommand("DRIVER GETPOWER", function(reply) {
if (reply) {
reply = (reply.split()[2]|0); // Format: powermode = XX
}
callback(reply);
});
};
command.setNumAllowedChannels = function (numChannels, callback) {
doBooleanCommand("DRIVER SCAN-CHANNELS " + numChannels, "OK", callback);
};
command.getNumAllowedChannels = function (callback) {
doStringCommand("DRIVER SCAN-CHANNELS", function(reply) {
if (reply) {
reply = (reply.split()[2]|0); // Format: Scan-Channels = X
}
callback(reply);
});
};
command.setBluetoothCoexistenceMode = function (mode, callback) {
doBooleanCommand("DRIVER BTCOEXMODE " + mode, "OK", callback);
};
command.setBluetoothCoexistenceScanMode = function (mode, callback) {
doBooleanCommand("DRIVER BTCOEXSCAN-" + (mode ? "START" : "STOP"),
"OK", callback);
};
command.saveConfig = function (callback) {
// Make sure we never write out a value for AP_SCAN other than 1.
doBooleanCommand("AP_SCAN 1", "OK", function(ok) {
doBooleanCommand("SAVE_CONFIG", "OK", callback);
});
};
command.reloadConfig = function (callback) {
doBooleanCommand("RECONFIGURE", "OK", callback);
};
command.setScanResultHandling = function (mode, callback) {
doBooleanCommand("AP_SCAN " + mode, "OK", callback);
};
command.addToBlacklist = function (bssid, callback) {
doBooleanCommand("BLACKLIST " + bssid, "OK", callback);
};
command.clearBlacklist = function (callback) {
doBooleanCommand("BLACKLIST clear", "OK", callback);
};
command.setSuspendOptimizationsICS = function (enabled, callback) {
doBooleanCommand("DRIVER SETSUSPENDOPT " + (enabled ? 0 : 1),
"OK", callback);
};
command.setSuspendOptimizationsJB = function (enabled, callback) {
doBooleanCommand("DRIVER SETSUSPENDMODE " + (enabled ? 1 : 0),
"OK", callback);
};
command.connectToSupplicant = function(callback) {
voidControlMessage("connect_to_supplicant", callback);
};
command.closeSupplicantConnection = function(callback) {
voidControlMessage("close_supplicant_connection", callback);
};
command.getMacAddress = function(callback) {
doStringCommand("DRIVER MACADDR", function(reply) {
if (reply) {
reply = reply.split(" ")[2]; // Format: Macaddr = XX.XX.XX.XX.XX.XX
}
callback(reply);
});
};
command.setDeviceName = function(deviceName, callback) {
doBooleanCommand("SET device_name " + deviceName, "OK", callback);
};
//-------------------------------------------------
// P2P commands.
//-------------------------------------------------
command.p2pProvDiscovery = function(address, wpsMethod, callback) {
var command = "P2P_PROV_DISC " + address + " " + wpsMethod;
doBooleanCommand(command, "OK", callback);
};
command.p2pConnect = function(config, callback) {
var command = "P2P_CONNECT " + config.address + " " + config.wpsMethodWithPin + " ";
if (config.joinExistingGroup) {
command += "join";
} else {
command += "go_intent=" + config.goIntent;
}
debug('P2P connect command: ' + command);
doBooleanCommand(command, "OK", callback);
};
command.p2pGroupRemove = function(iface, callback) {
debug("groupRemove()");
doBooleanCommand("P2P_GROUP_REMOVE " + iface, "OK", callback);
};
command.p2pEnable = function(detail, callback) {
var commandChain = ["SET device_name " + detail.deviceName,
"SET device_type " + detail.deviceType,
"SET config_methods " + detail.wpsMethods,
"P2P_SET conc_pref sta",
"P2P_FLUSH"];
doBooleanCommandChain(commandChain, callback);
};
command.p2pDisable = function(callback) {
doBooleanCommand("P2P_SET disabled 1", "OK", callback);
};
command.p2pEnableScan = function(timeout, callback) {
doBooleanCommand("P2P_FIND " + timeout, "OK", callback);
};
command.p2pDisableScan = function(callback) {
doBooleanCommand("P2P_STOP_FIND", "OK", callback);
};
command.p2pGetGroupCapab = function(address, callback) {
command.p2pPeer(address, function(reply) {
debug('p2p_peer reply: ' + reply);
if (!reply) {
callback(0);
return;
}
var capab = /group_capab=0x([0-9a-fA-F]+)/.exec(reply)[1];
if (!capab) {
callback(0);
} else {
callback(parseInt(capab, 16));
}
});
};
command.p2pPeer = function(address, callback) {
doStringCommand("P2P_PEER " + address, callback);
};
command.p2pGroupAdd = function(netId, callback) {
doBooleanCommand("P2P_GROUP_ADD persistent=" + netId, callback);
};
command.p2pReinvoke = function(netId, address, callback) {
doBooleanCommand("P2P_INVITE persistent=" + netId + " peer=" + address, "OK", callback);
};
//----------------------------------------------------------
// Private stuff.
//----------------------------------------------------------
function voidControlMessage(cmd, callback) {
aControlMessage({ cmd: cmd, iface: aInterface }, function (data) {
callback(data.status);
});
}
function doCommand(request, callback) {
var msg = { cmd: "command",
request: request,
iface: aInterface };
aControlMessage(msg, callback);
}
function doIntCommand(request, callback) {
doCommand(request, function(data) {
callback(data.status ? -1 : (data.reply|0));
});
}
function doBooleanCommand(request, expected, callback) {
doCommand(request, function(data) {
callback(data.status ? false : (data.reply === expected));
});
}
function doStringCommand(request, callback) {
doCommand(request, function(data) {
callback(data.status ? null : data.reply);
});
}
function doBooleanCommandChain(commandChain, callback, i) {
if (undefined === i) {
i = 0;
}
doBooleanCommand(commandChain[i], "OK", function(ok) {
if (!ok) {
return callback(false);
}
i++;
if (i === commandChain.length || !commandChain[i]) {
// Reach the end or empty command.
return callback(true);
}
doBooleanCommandChain(commandChain, callback, i);
});
}
//--------------------------------------------------
// Helper functions.
//--------------------------------------------------
function stopProcess(service, process, callback) {
var count = 0;
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);
}
return command;
};