1/* $OpenBSD: if_pflog.h,v 1.13 2006/10/23 12:46:09 henning Exp $ */
2/*-
3 * SPDX-License-Identifier: BSD-2-Clause
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
32#include <sys/types.h>
33
34#include <net/if.h>
35
36#define PFLOG_RULESET_NAME_SIZE 16
37
38struct pfloghdr {
39 u_int8_t length;
40 sa_family_t af;
41 u_int8_t action;
42 u_int8_t reason;
43 char ifname[IFNAMSIZ];
44 char ruleset[PFLOG_RULESET_NAME_SIZE];
45 u_int32_t rulenr;
46 u_int32_t subrulenr;
47 uid_t uid;
48 pid_t pid;
49 uid_t rule_uid;
50 pid_t rule_pid;
51 u_int8_t dir;
52 u_int8_t pad1; /* rewritten, on OpenBSD */
53 sa_family_t naf;
54 u_int8_t pad[1];
55 u_int32_t ridentifier;
56 u_int8_t reserve; /* Appease broken software like Wireshark. */
57 u_int8_t pad2[3];
58};
59
60#define PFLOG_ALIGNMENT sizeof(uint32_t)
61#define PFLOG_ALIGN(x) (((x) + PFLOG_ALIGNMENT - 1) & ~(PFLOG_ALIGNMENT - 1))
62#define PFLOG_HDRLEN PFLOG_ALIGN(offsetof(struct pfloghdr, pad2))
63/* minus pad, also used as a signature */
64#define PFLOG_REAL_HDRLEN offsetof(struct pfloghdr, pad2)
65
66#ifdef _KERNEL
67struct pf_rule;
68struct pf_ruleset;
69struct pfi_kif;
70struct pf_pdesc;
71
72#define PFLOG_PACKET(b,t,c,d,e,f,g,h) do { \
73 if (pflog_packet_ptr != NULL) \
74 pflog_packet_ptr(b,t,c,d,e,f,g,h); \
75} while (0)
76#endif /* _KERNEL */
77#endif /* _NET_IF_PFLOG_H_ */