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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 #ifndef _NETLINKEVENT_H
17 #define _NETLINKEVENT_H
18 
19 #include <sysutils/NetlinkListener.h>
20 
21 #define NL_PARAMS_MAX 32
22 
23 class NetlinkEvent {
24     int  mSeq;
25     char *mPath;
26     int  mAction;
27     char *mSubsystem;
28     char *mParams[NL_PARAMS_MAX];
29 
30 public:
31     const static int NlActionUnknown;
32     const static int NlActionAdd;
33     const static int NlActionRemove;
34     const static int NlActionChange;
35     const static int NlActionLinkDown;
36     const static int NlActionLinkUp;
37     const static int NlActionAddressUpdated;
38     const static int NlActionAddressRemoved;
39 
40     NetlinkEvent();
41     virtual ~NetlinkEvent();
42 
43     bool decode(char *buffer, int size, int format = NetlinkListener::NETLINK_FORMAT_ASCII);
44     const char *findParam(const char *paramName);
45 
getSubsystem()46     const char *getSubsystem() { return mSubsystem; }
getAction()47     int getAction() { return mAction; }
48 
49     void dump();
50 
51  protected:
52     bool parseIfAddrMessage(int type, struct ifaddrmsg *ifaddr, int rtasize);
53     bool parseBinaryNetlinkMessage(char *buffer, int size);
54     bool parseAsciiNetlinkMessage(char *buffer, int size);
55 };
56 
57 #endif
58