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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 _CONTROLLER_H
18 #define _CONTROLLER_H
19 
20 #include <unistd.h>
21 #include <sys/types.h>
22 
23 #include <utils/List.h>
24 
25 class PropertyManager;
26 class IControllerHandler;
27 
28 #include "PropertyManager.h"
29 
30 class Controller {
31     /*
32      * Name of this controller - WIFI/VPN/USBNET/BTNET/BTDUN/LOOP/etc
33      */
34     char *mName;
35 
36     /*
37      * Name of the system ethernet interface which this controller is
38      * bound to.
39      */
40     char *mBoundInterface;
41 
42 protected:
43     PropertyManager *mPropMngr;
44     IControllerHandler *mHandlers;
45 
46 public:
47     Controller(const char *name, PropertyManager *propMngr,
48                IControllerHandler *handlers);
49     virtual ~Controller();
50 
51     virtual int start();
52     virtual int stop();
53 
getName()54     const char *getName() { return mName; }
getBoundInterface()55     const char *getBoundInterface() { return mBoundInterface; }
56 
57 protected:
58     int loadKernelModule(char *modpath, const char *args);
59     bool isKernelModuleLoaded(const char *modtag);
60     int unloadKernelModule(const char *modtag);
61     int bindInterface(const char *ifname);
62     int unbindInterface(const char *ifname);
63 
64 private:
65     void *loadFile(char *filename, unsigned int *_size);
66 };
67 
68 typedef android::List<Controller *> ControllerCollection;
69 #endif
70