gecko-dev/dom/network/EthernetManager.js

656 lines
19 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/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
const TOPIC_INTERFACE_STATE_CHANGED = "network-interface-state-changed";
const ETHERNET_NETWORK_IFACE_PREFIX = "eth";
const DEFAULT_ETHERNET_NETWORK_IFACE = "eth0";
const INTERFACE_IPADDR_NULL = "0.0.0.0";
const INTERFACE_GATEWAY_NULL = "0.0.0.0";
const INTERFACE_PREFIX_NULL = 0;
const INTERFACE_MACADDR_NULL = "00:00:00:00:00:00";
const NETWORK_INTERFACE_UP = "up";
const NETWORK_INTERFACE_DOWN = "down";
const IP_MODE_DHCP = "dhcp";
const IP_MODE_STATIC = "static";
const PREF_NETWORK_DEBUG_ENABLED = "network.debugging.enabled";
XPCOMUtils.defineLazyServiceGetter(this, "gNetworkManager",
"@mozilla.org/network/manager;1",
"nsINetworkManager");
XPCOMUtils.defineLazyServiceGetter(this, "gNetworkService",
"@mozilla.org/network/service;1",
"nsINetworkService");
let debug;
function updateDebug() {
let debugPref = false; // set default value here.
try {
debugPref = debugPref || Services.prefs.getBoolPref(PREF_NETWORK_DEBUG_ENABLED);
} catch (e) {}
if (debugPref) {
debug = function(s) {
dump("-*- EthernetManager: " + s + "\n");
};
} else {
debug = function(s) {};
}
}
updateDebug();
// nsINetworkInterface
function EthernetInterface(attr) {
this.info.state = attr.state;
this.info.type = attr.type;
this.info.name = attr.name;
this.info.ipMode = attr.ipMode;
this.info.ips = [attr.ip];
this.info.prefixLengths = [attr.prefixLength];
this.info.gateways = [attr.gateway];
this.info.dnses = attr.dnses;
this.httpProxyHost = "";
this.httpProxyPort = 0;
}
EthernetInterface.prototype = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsINetworkInterface]),
updateConfig: function(config) {
debug("Interface " + this.info.name + " updateConfig " + JSON.stringify(config));
this.info.state = (config.state != undefined) ?
config.state : this.info.state;
this.info.ips = (config.ip != undefined) ? [config.ip] : this.info.ips;
this.info.prefixLengths = (config.prefixLength != undefined) ?
[config.prefixLength] : this.info.prefixLengths;
this.info.gateways = (config.gateway != undefined) ?
[config.gateway] : this.info.gateways;
this.info.dnses = (config.dnses != undefined) ? config.dnses : this.info.dnses;
this.httpProxyHost = (config.httpProxyHost != undefined) ?
config.httpProxyHost : this.httpProxyHost;
this.httpProxyPort = (config.httpProxyPort != undefined) ?
config.httpProxyPort : this.httpProxyPort;
this.info.ipMode = (config.ipMode != undefined) ?
config.ipMode : this.info.ipMode;
},
info: {
getAddresses: function(ips, prefixLengths) {
ips.value = this.ips.slice();
prefixLengths.value = this.prefixLengths.slice();
return this.ips.length;
},
getGateways: function(count) {
if (count) {
count.value = this.gateways.length;
}
return this.gateways.slice();
},
getDnses: function(count) {
if (count) {
count.value = this.dnses.length;
}
return this.dnses.slice();
}
}
};
// nsIEthernetManager
/*
* Network state transition diagram
*
* ---------- enable --------- connect ----------- disconnect --------------
* | Disabled | -----> | Enabled | -------> | Connected | <----------> | Disconnected |
* ---------- --------- ----------- connect --------------
* ^ | | |
* | disable | | |
* -----------------------------------------------------------------------
*/
function EthernetManager() {
debug("EthernetManager start");
// Interface list.
this.ethernetInterfaces = {};
// Used to memorize last connection information.
this.lastStaticConfig = {};
Services.obs.addObserver(this, "xpcom-shutdown", false);
}
EthernetManager.prototype = {
classID: Components.ID("a96441dd-36b3-4f7f-963b-2c032e28a039"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIEthernetManager]),
ethernetInterfaces: null,
lastStaticConfig: null,
observer: function(subject, topic, data) {
switch (topic) {
case "xpcom-shutdown":
debug("xpcom-shutdown");
this._shutdown();
Services.obs.removeObserver(this, "xpcom-shutdown");
break;
}
},
_shutdown: function() {
debug("Shuting down");
(function onRemove(ifnameList) {
if (!ifnameList.length) {
return;
}
let ifname = ifnameList.shift();
this.removeInterface(ifname, { notify: onRemove.bind(this, ifnameList) });
}).call(this, Object.keys(this.ethernetInterfaces));
},
get interfaceList() {
return Object.keys(this.ethernetInterfaces);
},
scan: function(callback) {
debug("Scan");
gNetworkService.getInterfaces(function(success, list) {
let ethList = [];
if (!success) {
if (callback) {
callback.notify(ethList);
}
return;
}
for (let i = 0; i < list.length; i++) {
debug("Found interface " + list[i]);
if (!list[i].startsWith(ETHERNET_NETWORK_IFACE_PREFIX)) {
continue;
}
ethList.push(list[i]);
}
if (callback) {
callback.notify(ethList);
}
});
},
addInterface: function(ifname, callback) {
debug("Add interface " + ifname);
if (!ifname || !ifname.startsWith(ETHERNET_NETWORK_IFACE_PREFIX)) {
if (callback) {
callback.notify(false, "Invalid interface.");
}
return;
}
if (this.ethernetInterfaces[ifname]) {
if (callback) {
callback.notify(true, "Interface already exists.");
}
return;
}
gNetworkService.getInterfaceConfig(ifname, function(success, result) {
if (!success) {
if (callback) {
callback.notify(false, "Netd error.");
}
return;
}
// Since the operation may still succeed with an invalid interface name,
// check the mac address as well.
if (result.macAddr == INTERFACE_MACADDR_NULL) {
if (callback) {
callback.notify(false, "Interface not found.");
}
return;
}
this.ethernetInterfaces[ifname] = new EthernetInterface({
state: result.link == NETWORK_INTERFACE_UP ?
Ci.nsINetworkInfo.NETWORK_STATE_DISABLED :
Ci.nsINetworkInfo.NETWORK_STATE_ENABLED,
name: ifname,
type: Ci.nsINetworkInfo.NETWORK_TYPE_ETHERNET,
ip: result.ip,
prefixLength: result.prefix,
ipMode: IP_MODE_DHCP
});
// Register the interface to NetworkManager.
gNetworkManager.registerNetworkInterface(this.ethernetInterfaces[ifname]);
debug("Add interface " + ifname + " succeeded with " +
JSON.stringify(this.ethernetInterfaces[ifname]));
if (callback) {
callback.notify(true, "ok");
}
}.bind(this));
},
removeInterface: function(ifname, callback) {
debug("Remove interface " + ifname);
if (!ifname || !ifname.startsWith(ETHERNET_NETWORK_IFACE_PREFIX)) {
if (callback) {
callback.notify(false, "Invalid interface.");
}
return;
}
if (!this.ethernetInterfaces[ifname]) {
if (callback) {
callback.notify(true, "Interface does not exist.");
}
return;
}
// Make sure interface is disable before removing.
this.disable(ifname, { notify: function(success, message) {
// Unregister the interface from NetworkManager and also remove it from
// the interface list.
gNetworkManager.unregisterNetworkInterface(this.ethernetInterfaces[ifname]);
delete this.ethernetInterfaces[ifname];
debug("Remove interface " + ifname + " succeeded.");
if (callback) {
callback.notify(true, "ok");
}
}.bind(this)});
},
updateInterfaceConfig: function(ifname, config, callback) {
debug("Update interface config with " + ifname);
this._ensureIfname(ifname, callback, function(iface) {
if (!config) {
if (callback) {
callback.notify(false, "No config to update.");
}
return;
}
// Network state can not be modified externally.
if (config.state) {
delete config.state;
}
let currentIpMode = iface.info.ipMode;
// Update config.
this.ethernetInterfaces[iface.info.name].updateConfig(config);
// Do not automatically re-connect if the interface is not in connected
// state.
if (iface.info.state != Ci.nsINetworkInfo.NETWORK_STATE_CONNECTED) {
if (callback) {
callback.notify(true, "ok");
}
return;
}
let newIpMode = this.ethernetInterfaces[iface.info.name].info.ipMode;
if (newIpMode == IP_MODE_STATIC) {
this._setStaticIP(iface.info.name, callback);
return;
}
if ((currentIpMode == IP_MODE_STATIC) && (newIpMode == IP_MODE_DHCP)) {
gNetworkService.stopDhcp(iface.info.name, function(success) {
if (success) {
debug("DHCP for " + iface.info.name + " stopped.");
}
});
// Clear the current network settings before do dhcp request, otherwise
// dhcp settings could fail.
this.disconnect(iface.info.name, { notify: function(success, message) {
if (!success) {
if (callback) {
callback.notify("Disconnect failed.");
}
return;
}
this._runDhcp(iface.info.name, callback);
}.bind(this) });
return;
}
if (callback) {
callback.notify(true, "ok");
}
}.bind(this));
},
enable: function(ifname, callback) {
debug("Enable interface " + ifname);
this._ensureIfname(ifname, callback, function(iface) {
// Interface can be only enabled in the state of disabled.
if (iface.info.state != Ci.nsINetworkInfo.NETWORK_STATE_DISABLED) {
if (callback) {
callback.notify(true, "Interface already enabled.");
}
return;
}
let ips = {};
let prefixLengths = {};
iface.info.getAddresses(ips, prefixLengths);
let config = { ifname: iface.info.name,
ip: ips.value[0],
prefix: prefixLengths.value[0],
link: NETWORK_INTERFACE_UP };
gNetworkService.setInterfaceConfig(config, function(success) {
if (!success) {
if (callback) {
callback.notify(false, "Netd Error.");
}
return;
}
this.ethernetInterfaces[iface.info.name].updateConfig({
state: Ci.nsINetworkInfo.NETWORK_STATE_ENABLED
});
debug("Enable interface " + iface.info.name + " succeeded.");
if (callback) {
callback.notify(true, "ok");
}
}.bind(this));
}.bind(this));
},
disable: function(ifname, callback) {
debug("Disable interface " + ifname);
this._ensureIfname(ifname, callback, function(iface) {
if (iface.info.state == Ci.nsINetworkInfo.NETWORK_STATE_DISABLED) {
if (callback) {
callback.notify(true, "Interface already disabled.");
}
return;
}
if (iface.info.state == Ci.nsINetworkInfo.NETWORK_STATE_CONNECTED) {
gNetworkService.stopDhcp(iface.info.name, function(success) {
if (success) {
debug("DHCP for " + iface.info.name + " stopped.");
}
});
}
let ips = {};
let prefixLengths = {};
iface.info.getAddresses(ips, prefixLengths);
let config = { ifname: iface.info.name,
ip: ips.value[0],
prefix: prefixLengths.value[0],
link: NETWORK_INTERFACE_DOWN };
gNetworkService.setInterfaceConfig(config, function(success) {
if (!success) {
if (callback) {
callback.notify(false, "Netd Error.");
}
return;
}
this.ethernetInterfaces[iface.info.name].updateConfig({
state: Ci.nsINetworkInfo.NETWORK_STATE_DISABLED
});
debug("Disable interface " + iface.info.name + " succeeded.");
if (callback) {
callback.notify(true, "ok");
}
}.bind(this));
}.bind(this));
},
connect: function(ifname, callback) {
debug("Connect interface " + ifname);
this._ensureIfname(ifname, callback, function(iface) {
// Interface can only be connected in the state of enabled or
// disconnected.
if (iface.info.state == Ci.nsINetworkInfo.NETWORK_STATE_DISABLED ||
iface.info.state == Ci.nsINetworkInfo.NETWORK_STATE_CONNECTED) {
if (callback) {
callback.notify(true, "Interface " + ifname + " is not available or "
+ " already connected.");
}
return;
}
if (iface.info.ipMode == IP_MODE_DHCP) {
this._runDhcp(iface.info.name, callback);
return;
}
if (iface.info.ipMode == IP_MODE_STATIC) {
if (this._checkConfigNull(iface) && this.lastStaticConfig[iface.info.name]) {
debug("Connect with lastStaticConfig " +
JSON.stringify(this.lastStaticConfig[iface.info.name]));
this.ethernetInterfaces[iface.info.name].updateConfig(
this.lastStaticConfig[iface.info.name]);
}
this._setStaticIP(iface.info.name, callback);
return;
}
if (callback) {
callback.notify(false, "IP mode is wrong or not set.");
}
}.bind(this));
},
disconnect: function(ifname, callback) {
debug("Disconnect interface " + ifname);
this._ensureIfname(ifname, callback, function(iface) {
// Interface can be only disconnected in the state of connected.
if (iface.info.state != Ci.nsINetworkInfo.NETWORK_STATE_CONNECTED) {
if (callback) {
callback.notify(true, "Interface is already disconnected");
}
return;
}
let config = { ifname: iface.info.name,
ip: INTERFACE_IPADDR_NULL,
prefix: INTERFACE_PREFIX_NULL,
link: NETWORK_INTERFACE_UP };
gNetworkService.setInterfaceConfig(config, function(success) {
if (!success) {
if (callback) {
callback.notify(false, "Netd error.");
}
return;
}
// Stop dhcp daemon.
gNetworkService.stopDhcp(iface.info.name, function(success) {
if (success) {
debug("DHCP for " + iface.info.name + " stopped.");
}
});
this.ethernetInterfaces[iface.info.name].updateConfig({
state: Ci.nsINetworkInfo.NETWORK_STATE_DISCONNECTED,
ip: INTERFACE_IPADDR_NULL,
prefixLength: INTERFACE_PREFIX_NULL,
gateway: INTERFACE_GATEWAY_NULL
});
gNetworkManager.updateNetworkInterface(this.ethernetInterfaces[ifname]);
debug("Disconnect interface " + iface.info.name + " succeeded.");
if (callback) {
callback.notify(true, "ok");
}
}.bind(this));
}.bind(this));
},
_checkConfigNull: function(iface) {
let ips = {};
let prefixLengths = {};
let gateways = iface.info.getGateways();
iface.info.getAddresses(ips, prefixLengths);
if (ips.value[0] == INTERFACE_IPADDR_NULL &&
prefixLengths.value[0] == INTERFACE_PREFIX_NULL &&
gateways[0] == INTERFACE_GATEWAY_NULL) {
return true;
}
return false;
},
_ensureIfname: function(ifname, callback, func) {
// If no given ifname, use the default one.
if (!ifname) {
ifname = DEFAULT_ETHERNET_NETWORK_IFACE;
}
let iface = this.ethernetInterfaces[ifname];
if (!iface) {
if (callback) {
callback.notify(true, "Interface " + ifname + " is not available.");
}
return;
}
func.call(this, iface);
},
_runDhcp: function(ifname, callback) {
debug("runDhcp with " + ifname);
if (!this.ethernetInterfaces[ifname]) {
if (callback) {
callback.notify(false, "Invalid interface.");
}
return;
}
gNetworkService.dhcpRequest(ifname, function(success, result) {
if (!success) {
if (callback) {
callback.notify(false, "DHCP failed.");
}
return;
}
debug("DHCP succeeded with " + JSON.stringify(result));
// Clear last static network information when connecting with dhcp mode.
if (this.lastStaticConfig[ifname]) {
this.lastStaticConfig[ifname] = null;
}
this.ethernetInterfaces[ifname].updateConfig({
state: Ci.nsINetworkInfo.NETWORK_STATE_CONNECTED,
ip: result.ipaddr_str,
gateway: result.gateway_str,
prefixLength: result.prefixLength,
dnses: [result.dns1_str, result.dns2_str]
});
gNetworkManager.updateNetworkInterface(this.ethernetInterfaces[ifname]);
debug("Connect interface " + ifname + " with DHCP succeeded.");
if (callback) {
callback.notify(true, "ok");
}
}.bind(this));
},
_setStaticIP: function(ifname, callback) {
let iface = this.ethernetInterfaces[ifname];
if (!iface) {
if (callback) {
callback.notify(false, "Invalid interface.");
}
return;
}
let ips = {};
let prefixLengths = {};
iface.info.getAddresses(ips, prefixLengths);
let config = { ifname: iface.info.name,
ip: ips.value[0],
prefix: prefixLengths.value[0],
link: NETWORK_INTERFACE_UP };
gNetworkService.setInterfaceConfig(config, function(success) {
if (!success) {
if (callback) {
callback.notify(false, "Netd Error.");
}
return;
}
// Keep the lastest static network information.
let ips = {};
let prefixLengths = {};
let gateways = iface.info.getGateways();
iface.info.getAddresses(ips, prefixLengths);
this.lastStaticConfig[iface.info.name] = {
ip: ips.value[0],
prefixLength: prefixLengths.value[0],
gateway: gateways[0]
};
this.ethernetInterfaces[ifname].updateConfig({
state: Ci.nsINetworkInfo.NETWORK_STATE_CONNECTED,
});
gNetworkManager.updateNetworkInterface(this.ethernetInterfaces[ifname]);
debug("Connect interface " + ifname + " with static ip succeeded.");
if (callback) {
callback.notify(true, "ok");
}
}.bind(this));
},
}
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([EthernetManager]);