gecko-dev/dom/wifi/WifiNetUtil.jsm
Henry Chang fd6d2c9083 Bug 919426 - Part 2: Add new file WifiNetUtil.jsm. r=vchang
WifiNetUtil.jsm provides network related facilities.
2013-09-30 11:00:04 +08:00

212 lines
6.3 KiB
JavaScript

/* -*- 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";
const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/systemlibs.js");
XPCOMUtils.defineLazyServiceGetter(this, "gNetworkManager",
"@mozilla.org/network/manager;1",
"nsINetworkManager");
this.EXPORTED_SYMBOLS = ["WifiNetUtil"];
const DHCP_PROP = "init.svc.dhcpcd";
const DHCP = "dhcpcd";
this.WifiNetUtil = function(controlMessage) {
var util = {};
util.configureInterface = function(cfg, callback) {
let message = { cmd: "ifc_configure",
ifname: cfg.ifname,
ipaddr: cfg.ipaddr,
mask: cfg.mask,
gateway: cfg.gateway,
dns1: cfg.dns1,
dns2: cfg.dns2 };
controlMessage(message, function(data) {
callback(!data.status);
});
};
util.runDhcp = function (ifname, callback) {
controlMessage({ cmd: "dhcp_do_request", ifname: ifname }, function(data) {
var dhcpInfo = data.status ? null : data;
util.runIpConfig(ifname, dhcpInfo, callback);
});
};
util.stopDhcp = function (ifname, callback) {
// This function does exactly what dhcp_stop does. Unforunately, if we call
// this function twice before the previous callback is returned. We may block
// our self waiting for the callback. It slows down the wifi startup procedure.
// Therefore, we have to roll our own version here.
let dhcpService = DHCP_PROP + "_" + ifname;
let suffix = (ifname.substr(0, 3) === "p2p") ? "p2p" : ifname;
let processName = DHCP + "_" + suffix;
stopProcess(dhcpService, processName, callback);
};
util.enableInterface = function (ifname, callback) {
controlMessage({ cmd: "ifc_enable", ifname: ifname }, function (data) {
callback(!data.status);
});
};
util.disableInterface = function (ifname, callback) {
controlMessage({ cmd: "ifc_disable", ifname: ifname }, function (data) {
callback(!data.status);
});
};
util.startDhcpServer = function (range, callback) {
gNetworkManager.setDhcpServer(true, range, function (error) {
callback(!error);
});
};
util.stopDhcpServer = function (callback) {
gNetworkManager.setDhcpServer(false, null, function (error) {
callback(!error);
});
};
util.addHostRoute = function (ifname, route, callback) {
controlMessage({ cmd: "ifc_add_host_route", ifname: ifname, route: route }, function(data) {
callback(!data.status);
});
};
util.removeHostRoutes = function (ifname, callback) {
controlMessage({ cmd: "ifc_remove_host_routes", ifname: ifname }, function(data) {
callback(!data.status);
});
};
util.setDefaultRoute = function (ifname, route, callback) {
controlMessage({ cmd: "ifc_set_default_route", ifname: ifname, route: route }, function(data) {
callback(!data.status);
});
};
util.getDefaultRoute = function (ifname, callback) {
controlMessage({ cmd: "ifc_get_default_route", ifname: ifname }, function(data) {
callback(!data.route);
});
};
util.removeDefaultRoute = function (ifname, callback) {
controlMessage({ cmd: "ifc_remove_default_route", ifname: ifname }, function(data) {
callback(!data.status);
});
};
util.resetConnections = function (ifname, callback) {
controlMessage({ cmd: "ifc_reset_connections", ifname: ifname }, function(data) {
callback(!data.status);
});
};
util.releaseDhcpLease = function (ifname, callback) {
controlMessage({ cmd: "dhcp_release_lease", ifname: ifname }, function(data) {
callback(!data.status);
});
};
util.getDhcpError = function (callback) {
controlMessage({ cmd: "dhcp_get_errmsg" }, function(data) {
callback(data.error);
});
};
util.runDhcpRenew = function (ifname, callback) {
controlMessage({ cmd: "dhcp_do_request", ifname: ifname }, function(data) {
callback(data.status ? null : data);
});
};
util.runIpConfig = function (name, data, callback) {
if (!data) {
callback({ info: data });
return;
}
setProperty("net." + name + ".dns1", ipToString(data.dns1),
function(ok) {
if (!ok) {
return;
}
setProperty("net." + name + ".dns2", ipToString(data.dns2),
function(ok) {
if (!ok) {
return;
}
setProperty("net." + name + ".gw", ipToString(data.gateway),
function(ok) {
if (!ok) {
return;
}
callback({ info: data });
});
});
});
};
//--------------------------------------------------
// 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);
}
function ipToString(n) {
return String((n >> 0) & 0xFF) + "." +
((n >> 8) & 0xFF) + "." +
((n >> 16) & 0xFF) + "." +
((n >> 24) & 0xFF);
}
return util;
};