netevent.h revision 331756 
1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice unmodified, this list of conditions, and the following
13 *    disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD: stable/11/sys/compat/linuxkpi/common/include/net/netevent.h 331756 2018-03-30 02:04:46Z emaste $
30 */
31#ifndef	_LINUX_NET_NETEVENT_H_
32#define	_LINUX_NET_NETEVENT_H_
33
34#include <sys/types.h>
35#include <sys/eventhandler.h>
36
37#include <linux/notifier.h>
38
39enum netevent_notif_type {
40	NETEVENT_NEIGH_UPDATE = 0,
41#if 0 /* Unsupported events. */
42	NETEVENT_PMTU_UPDATE,
43	NETEVENT_REDIRECT,
44#endif
45};
46
47struct llentry;
48
49static inline void
50_handle_arp_update_event(void *arg, struct llentry *lle, int evt __unused)
51{
52	struct notifier_block *nb;
53
54	nb = arg;
55	nb->notifier_call(nb, NETEVENT_NEIGH_UPDATE, lle);
56}
57
58static inline int
59register_netevent_notifier(struct notifier_block *nb)
60{
61	nb->tags[NETEVENT_NEIGH_UPDATE] = EVENTHANDLER_REGISTER(
62	    lle_event, _handle_arp_update_event, nb, 0);
63	return (0);
64}
65
66static inline int
67unregister_netevent_notifier(struct notifier_block *nb)
68{
69
70	EVENTHANDLER_DEREGISTER(lle_event, nb->tags[NETEVENT_NEIGH_UPDATE]);
71
72	return (0);
73}
74
75#endif /* _LINUX_NET_NETEVENT_H_ */
76