1 /*
2  * Copyright 2018, 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 #pragma once
18 
19 #include <stddef.h>
20 
21 #ifdef __cplusplus
22 extern "C" {
23 #endif
24 
25 struct ifMonitor;
26 
27 struct ifAddress {
28     int family;
29     int prefix;
30     unsigned char addr[16];
31 };
32 
33 // A callback for when the addresses on an interface changes
34 typedef void (*ifMonitorCallback)(unsigned int /*interface index*/,
35                                   const struct ifAddress* /*addresses*/,
36                                   size_t /*number of addresses */);
37 
38 struct ifMonitor* ifMonitorCreate();
39 void ifMonitorFree(struct ifMonitor* monitor);
40 
41 void ifMonitorSetCallback(struct ifMonitor* monitor,
42                           ifMonitorCallback callback);
43 void ifMonitorRunAsync(struct ifMonitor* monitor);
44 void ifMonitorStop(struct ifMonitor* monitor);
45 
46 #ifdef __cplusplus
47 } // extern "C"
48 #endif
49 
50