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 namespace android {
24 namespace net {
25 
26 class NetlinkHandler;
27 
28 class NetlinkManager {
29 private:
30     static NetlinkManager *sInstance;
31 
32 private:
33     SocketListener       *mBroadcaster;
34     NetlinkHandler       *mUeventHandler;
35     NetlinkHandler       *mRouteHandler;
36     NetlinkHandler       *mQuotaHandler;
37     NetlinkHandler       *mStrictHandler;
38     int                  mUeventSock;
39     int                  mRouteSock;
40     int                  mQuotaSock;
41     int                  mStrictSock;
42 
43 public:
44     virtual ~NetlinkManager();
45 
46     int start();
47     int stop();
48 
setBroadcaster(SocketListener * sl)49     void setBroadcaster(SocketListener *sl) { mBroadcaster = sl; }
getBroadcaster()50     SocketListener *getBroadcaster() { return mBroadcaster; }
51 
52     static NetlinkManager *Instance();
53 
54     /* Group used by xt_quota2 */
55     static const int NFLOG_QUOTA_GROUP;
56     /* Group used by StrictController rules */
57     static const int NETFILTER_STRICT_GROUP;
58     /* Group used by WakeupController rules */
59     static const int NFLOG_WAKEUP_GROUP;
60 
61 private:
62     NetlinkManager();
63     NetlinkHandler* setupSocket(int *sock, int netlinkFamily, int groups,
64         int format, bool configNflog);
65 };
66 
67 }  // namespace net
68 }  // namespace android
69 
70 #endif
71