if_pflog.h revision 155337 
1/*	$FreeBSD: head/sys/contrib/pf/net/if_pflog.h 155337 2006-02-05 17:17:32Z mlaier $	*/
2/* $OpenBSD: if_pflog.h,v 1.11 2004/05/19 17:50:51 dhartmei Exp $ */
3
4/*
5 * Copyright 2001 Niels Provos <provos@citi.umich.edu>
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, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _NET_IF_PFLOG_H_
30#define _NET_IF_PFLOG_H_
31
32struct pflog_softc {
33#ifdef __FreeBSD__
34	struct ifnet	*sc_ifp;  /* the interface */
35	LIST_ENTRY(pflog_softc) sc_next;
36#else
37	struct ifnet	sc_if;  /* the interface */
38#endif
39};
40
41#define PFLOG_RULESET_NAME_SIZE	16
42
43struct pfloghdr {
44	u_int8_t	length;
45	sa_family_t	af;
46	u_int8_t	action;
47	u_int8_t	reason;
48	char		ifname[IFNAMSIZ];
49	char		ruleset[PFLOG_RULESET_NAME_SIZE];
50	u_int32_t	rulenr;
51	u_int32_t	subrulenr;
52	u_int8_t	dir;
53	u_int8_t	pad[3];
54};
55
56#define PFLOG_HDRLEN		sizeof(struct pfloghdr)
57/* minus pad, also used as a signature */
58#define PFLOG_REAL_HDRLEN	offsetof(struct pfloghdr, pad)
59
60/* XXX remove later when old format logs are no longer needed */
61struct old_pfloghdr {
62	u_int32_t af;
63	char ifname[IFNAMSIZ];
64	short rnr;
65	u_short reason;
66	u_short action;
67	u_short dir;
68};
69#define OLD_PFLOG_HDRLEN	sizeof(struct old_pfloghdr)
70
71#ifdef _KERNEL
72
73#ifdef __FreeBSD__
74/* XXX */
75#include <net/pfvar.h>
76
77typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
78    u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
79    struct pf_ruleset *);
80extern pflog_packet_t *pflog_packet_ptr;
81#define	PFLOG_PACKET(i,x,a,b,c,d,e,f,g) do {		\
82	if (pflog_packet_ptr != NULL)			\
83		pflog_packet_ptr(i,a,b,c,d,e,f,g);	\
84} while (0)
85#else
86#if NPFLOG > 0
87#define	PFLOG_PACKET(i,x,a,b,c,d,e,f,g) pflog_packet(i,a,b,c,d,e,f,g)
88#else
89#define	PFLOG_PACKET(i,x,a,b,c,d,e,f,g)	((void)0)
90#endif /* NPFLOG > 0 */
91#endif /* __FreeBSD__ */
92#endif /* _KERNEL */
93#endif /* _NET_IF_PFLOG_H_ */
94