зеркало из https://github.com/mozilla/gecko-dev.git
Bug 919426 - Part 1: Add new file WifiCommand.jsm. r=vchang
WifiCommand.jsm is used to call the native C API and control wpa_supplicant
This commit is contained in:
Henry Chang
Родитель
b611e4f687
Коммит
91f59beeea
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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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this.WifiCommand = function(controlMessage) {
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var command = {};
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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) {
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doBooleanCommand("WPS_PBC", "OK", callback);
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};
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command.wpsPin = function (detail, callback) {
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doStringCommand("WPS_PIN " +
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(detail.bssid === undefined ? "any" : detail.bssid) +
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(detail.pin === undefined ? "" : (" " + detail.pin)),
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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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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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let rval = {};
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var lines = reply.split("\n");
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for (let i = 0; i < lines.length; ++i) {
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let [key, value] = lines[i].split("=");
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switch (key.toUpperCase()) {
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case "RSSI":
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rval.rssi = value | 0;
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break;
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case "LINKSPEED":
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rval.linkspeed = value | 0;
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break;
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default:
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// Ignore.
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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.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.setSuspendOptimizations = 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.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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//--------------------------------------------------
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// Helper functions.
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//--------------------------------------------------
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function voidControlMessage(cmd, callback) {
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controlMessage({ cmd: cmd }, 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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controlMessage(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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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);
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function tick() {
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let result = libcutils.property_get(service);
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if (result === null) {
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callback();
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return;
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}
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if (result === "stopped" || ++count >= 5) {
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// Either we succeeded or ran out of time.
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timer = null;
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callback();
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return;
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}
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// Else it's still running, continue waiting.
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timer.initWithCallback(tick, 1000, Ci.nsITimer.TYPE_ONE_SHOT);
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}
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setProperty("ctl.stop", process, tick);
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}
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// Wrapper around libcutils.property_set that returns true if setting the
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// value was successful.
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// Note that the callback is not called asynchronously.
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function setProperty(key, value, callback) {
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let ok = true;
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try {
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libcutils.property_set(key, value);
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} catch(e) {
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ok = false;
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}
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callback(ok);
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}
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return command;
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};
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