xref: /netbsd-src/sys/net/npf/if_npflog.h (revision 39013e66c1ab98cbf1ceb3a94595880d6763083b)
1 /*
2  * Copyright 2001 Niels Provos <provos@citi.umich.edu>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 #ifndef _NET_NPF_IF_NPFLOG_H_
26 #define _NET_NPF_IF_NPFLOG_H_
27 
28 #ifndef _KERNEL
29 #error "not supposed to be exposed to userland"
30 #endif
31 
32 #define NPFLOG_RULESET_NAME_SIZE	16
33 
34 /*
35  * For now, we use a header compatible with pflog.
36  * This will be improved in the future.
37  */
38 
39 struct npfloghdr {
40 	uint8_t		length;
41 	sa_family_t	af;
42 	uint8_t		action;
43 	uint8_t		reason;
44 	char		ifname[IFNAMSIZ];
45 	char		ruleset[NPFLOG_RULESET_NAME_SIZE];
46 	uint32_t	rulenr;
47 	uint32_t	subrulenr;
48 	uint32_t	uid;
49 	uint32_t	pid;
50 	uint32_t	rule_uid;
51 	uint32_t	rule_pid;
52 	uint8_t		dir;
53 	uint8_t		pad[3];
54 };
55 
56 #define DLT_NPFLOG	DLT_PFLOG
57 
58 #define NPFLOG_HDRLEN		sizeof(struct npfloghdr)
59 #define NPFLOG_REAL_HDRLEN	offsetof(struct npfloghdr, pad)
60 
61 #endif /* _NET_NPF_IF_NPFLOG_H_ */
62