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      1 /*
      2  * Copyright 2001 Niels Provos <provos (at) 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