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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef _NETLINKMANAGER_H
     18 #define _NETLINKMANAGER_H
     19 
     20 #include <sysutils/SocketListener.h>
     21 #include <sysutils/NetlinkListener.h>
     22 
     23 
     24 class NetlinkHandler;
     25 
     26 class NetlinkManager {
     27 private:
     28     static NetlinkManager *sInstance;
     29 
     30 private:
     31     SocketListener       *mBroadcaster;
     32     NetlinkHandler       *mUeventHandler;
     33     NetlinkHandler       *mRouteHandler;
     34     NetlinkHandler       *mQuotaHandler;
     35     NetlinkHandler       *mIfaceIdleTimerHandler;
     36     int                  mUeventSock;
     37     int                  mRouteSock;
     38     int                  mQuotaSock;
     39 
     40 public:
     41     virtual ~NetlinkManager();
     42 
     43     int start();
     44     int stop();
     45 
     46     void setBroadcaster(SocketListener *sl) { mBroadcaster = sl; }
     47     SocketListener *getBroadcaster() { return mBroadcaster; }
     48 
     49     static NetlinkManager *Instance();
     50 
     51     /* This is the nflog group arg that the xt_quota2 neftiler will use. */
     52     static const int NFLOG_QUOTA_GROUP;
     53 
     54     /* This is the group that the xt_IDLETIMER netfilter will use. */
     55     static const int IDLETIMER_GROUP;
     56 
     57 private:
     58     NetlinkManager();
     59     NetlinkHandler* setupSocket(int *sock, int netlinkFamily, int groups,
     60         int format);
     61 };
     62 #endif
     63