--- a/b2g/installer/package-manifest.in
+++ b/b2g/installer/package-manifest.in
@@ -466,16 +466,18 @@
 @BINPATH@/components/MobileMessageDatabaseService.manifest
 @BINPATH@/components/MobileMessageDatabaseService.js
 @BINPATH@/components/WifiWorker.js
 @BINPATH@/components/WifiWorker.manifest
 @BINPATH@/components/DOMWifiManager.js
 @BINPATH@/components/DOMWifiManager.manifest
 @BINPATH@/components/NetworkStatsManager.js
 @BINPATH@/components/NetworkStatsManager.manifest
+@BINPATH@/components/NetworkInterfaceListService.manifest
+@BINPATH@/components/NetworkInterfaceListService.js
 #endif
 #ifdef MOZ_B2G_FM
 @BINPATH@/components/DOMFMRadioChild.js
 @BINPATH@/components/DOMFMRadio.manifest
 #endif
 #ifdef MOZ_ENABLE_DBUS
 @BINPATH@/components/@DLL_PREFIX@dbusservice@DLL_SUFFIX@
 #endif

--- a/dom/system/gonk/Makefile.in
+++ b/dom/system/gonk/Makefile.in
@@ -38,16 +38,18 @@ LOCAL_INCLUDES = \
   $(NULL)
 
 EXTRA_COMPONENTS = \
   NetworkManager.manifest \
   NetworkManager.js \
   RadioInterfaceLayer.manifest \
   RadioInterfaceLayer.js \
   RILContentHelper.js \
+  NetworkInterfaceListService.manifest \
+  NetworkInterfaceListService.js \
   $(NULL)
 
 EXTRA_JS_MODULES = \
   net_worker.js \
   ril_consts.js \
   ril_worker.js \
   systemlibs.js \
   $(NULL)

new file mode 100644
--- /dev/null
+++ b/dom/system/gonk/NetworkInterfaceListService.js
@@ -0,0 +1,63 @@
+/* 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");
+
+const NETWORKLISTSERVICE_CONTRACTID =
+        "@mozilla.org/network/interface-list-service;1";
+const NETWORKLISTSERVICE_CID =
+        Components.ID("{3780be6e-7012-4e53-ade6-15212fb88a0d}");
+
+XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
+                                   "@mozilla.org/childprocessmessagemanager;1",
+                                   "nsISyncMessageSender");
+
+function NetworkInterfaceListService () {
+}
+
+NetworkInterfaceListService.prototype = {
+  classID: NETWORKLISTSERVICE_CID,
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsINetworkInterfaceListService]),
+
+  getDataInterfaceList: function(aConditions) {
+    return new NetworkInterfaceList(
+      cpmm.sendSyncMessage(
+        'NetworkInterfaceList:ListInterface',
+        {
+          excludeSupl: (aConditions &
+                        Ci.nsINetworkInterfaceListService.
+                        LIST_NOT_INCLUDE_SUPL_INTERFACES) != 0,
+          excludeMms: (aConditions &
+                       Ci.nsINetworkInterfaceListService.
+                       LIST_NOT_INCLUDE_MMS_INTERFACES) != 0
+        }
+      )[0]);
+  }
+};
+
+function NetworkInterfaceList (aInterfaces) {
+  this._interfaces = aInterfaces;
+}
+
+NetworkInterfaceList.prototype = {
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsINetworkInterfaceList]),
+  getNumberOfInterface: function() {
+    return this._interfaces.length;
+  },
+
+  getInterface: function(index) {
+    if (!this._interfaces) {
+      return null;
+    }
+    return this._interfaces[index];
+  }
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([NetworkInterfaceListService]);
+

new file mode 100644
--- /dev/null
+++ b/dom/system/gonk/NetworkInterfaceListService.manifest
@@ -0,0 +1,17 @@
+# Copyright 2012 Mozilla Foundation and Mozilla contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# NetworkInterfaceListService.js
+component {3780be6e-7012-4e53-ade6-15212fb88a0d} NetworkInterfaceListService.js
+contract @mozilla.org/network/interface-list-service;1 {3780be6e-7012-4e53-ade6-15212fb88a0d}

--- a/dom/system/gonk/NetworkManager.js
+++ b/dom/system/gonk/NetworkManager.js
@@ -17,16 +17,20 @@ const NETWORKINTERFACE_CONTRACTID = "@mo
 const NETWORKINTERFACE_CID =
   Components.ID("{266c3edd-78f0-4512-8178-2d6fee2d35ee}");
 
 const DEFAULT_PREFERRED_NETWORK_TYPE = Ci.nsINetworkInterface.NETWORK_TYPE_WIFI;
 
 XPCOMUtils.defineLazyServiceGetter(this, "gSettingsService",
                                    "@mozilla.org/settingsService;1",
                                    "nsISettingsService");
+XPCOMUtils.defineLazyGetter(this, "ppmm", function() {
+  return Cc["@mozilla.org/parentprocessmessagemanager;1"]
+         .getService(Ci.nsIMessageBroadcaster);
+});
 
 XPCOMUtils.defineLazyServiceGetter(this, "gDNSService",
                                    "@mozilla.org/network/dns-service;1",
                                    "nsIDNSService");
 
 const TOPIC_INTERFACE_STATE_CHANGED  = "network-interface-state-changed";
 const TOPIC_INTERFACE_REGISTERED     = "network-interface-registered";
 const TOPIC_INTERFACE_UNREGISTERED   = "network-interface-unregistered";
@@ -205,16 +209,18 @@ function NetworkManager() {
         settingsLock.set(SETTINGS_WIFI_ENABLED, aResult, null);
       });
     },
 
     handleError: function (aErrorMessage) {
       debug("Error reading the 'tethering.wifi.enabled' setting: " + aErrorMessage);
     }
   });
+
+  ppmm.addMessageListener('NetworkInterfaceList:ListInterface', this);
 }
 NetworkManager.prototype = {
   classID:   NETWORKMANAGER_CID,
   classInfo: XPCOMUtils.generateCI({classID: NETWORKMANAGER_CID,
                                     contractID: NETWORKMANAGER_CONTRACTID,
                                     classDescription: "Network Manager",
                                     interfaces: [Ci.nsINetworkManager]}),
   QueryInterface: XPCOMUtils.generateQI([Ci.nsINetworkManager,
@@ -315,16 +321,48 @@ NetworkManager.prototype = {
         Services.obs.removeObserver(this, TOPIC_MOZSETTINGS_CHANGED);
         Services.obs.removeObserver(this, TOPIC_INTERFACE_REGISTERED);
         Services.obs.removeObserver(this, TOPIC_INTERFACE_UNREGISTERED);
         Services.obs.removeObserver(this, TOPIC_INTERFACE_STATE_CHANGED);
         break;
     }
   },
 
+  receiveMessage: function receiveMessage(aMsg) {
+    switch (aMsg.name) {
+      case "NetworkInterfaceList:ListInterface": {
+        let excludeMms = aMsg.json.exculdeMms;
+        let excludeSupl = aMsg.json.exculdeSupl;
+        let interfaces = [];
+
+        for each (let i in this.networkInterfaces) {
+          if ((i.type == Ci.nsINetworkInterface.NETWORK_TYPE_MOBILE_MMS && excludeMms) ||
+              (i.type == Ci.nsINetworkInterface.NETWORK_TYPE_MOBILE_SUPL && excludeSupl)) {
+            continue;
+          }
+          interfaces.push({
+            state: i.state,
+            type: i.type,
+            name: i.name,
+            dhcp: i.dhcp,
+            ip: i.ip,
+            netmask: i.netmask,
+            broadcast: i.broadcast,
+            gateway: i.gateway,
+            dns1: i.dns1,
+            dns2: i.dns2,
+            httpProxyHost: i.httpProxyHost,
+            httpProxyPort: i.httpProxyPort
+          });
+        }
+        return interfaces;
+      }
+    }
+  },
+
   // nsINetworkManager
 
   registerNetworkInterface: function registerNetworkInterface(network) {
     if (!(network instanceof Ci.nsINetworkInterface)) {
       throw Components.Exception("Argument must be nsINetworkInterface.",
                                  Cr.NS_ERROR_INVALID_ARG);
     }
     if (network.name in this.networkInterfaces) {

--- a/dom/system/gonk/moz.build
+++ b/dom/system/gonk/moz.build
@@ -12,16 +12,17 @@
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
 XPIDL_SOURCES += [
     'nsIAudioManager.idl',
     'nsINavigatorAudioChannelManager.idl',
+    'nsINetworkInterfaceListService.idl',
     'nsINetworkManager.idl',
     'nsIRadioInterfaceLayer.idl',
     'nsISystemWorkerManager.idl',
     'nsIVolume.idl',
     'nsIVolumeMountLock.idl',
     'nsIVolumeService.idl',
     'nsIVolumeStat.idl',
     'nsIWorkerHolder.idl',

new file mode 100644
--- /dev/null
+++ b/dom/system/gonk/nsINetworkInterfaceListService.idl
@@ -0,0 +1,36 @@
+/* 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/. */
+
+#include "nsINetworkManager.idl"
+#include "nsISupports.idl"
+
+[scriptable, uuid(b44d74db-c9d6-41dd-98ae-a56918d6e6ad)]
+interface nsINetworkInterfaceList : nsISupports
+{
+  /**
+   * Number of the network interfaces that is available.
+   */
+  long getNumberOfInterface();
+
+  /**
+   * Get the i-th interface from the list.
+   * @param interfaceIndex index of interface, from 0 to number of interface - 1.
+   */
+  nsINetworkInterface getInterface(in long interfaceIndex);
+};
+
+[scriptable, uuid(5be50bcb-bfe9-4742-b7e6-3e9bb4835369)]
+interface nsINetworkInterfaceListService : nsISupports
+{
+  const long LIST_NOT_INCLUDE_MMS_INTERFACES = 1;
+  const long LIST_NOT_INCLUDE_SUPL_INTERFACES = 2;
+
+  /**
+   * Obtain a list of network interfaces that satisfy the specified condition.
+   * @param condition flags that specify the interfaces to be returned. This
+   *        can be OR combination of LIST_* flags, or zero to make all available
+   *        interfaces returned.
+   */
+  nsINetworkInterfaceList getDataInterfaceList(in long condition);
+};