source: rtems-libbsd/contrib/pf/rtems/freebsd/net/if_pflog.h @ 9a8e3e0

/* $FreeBSD$ */
/* $OpenBSD: if_pflog.h,v 1.14 2006/10/25 11:27:01 henning Exp $ */
/*
 * Copyright 2001 Niels Provos <provos@citi.umich.edu>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _NET_IF_PFLOG_HH_
#define _NET_IF_PFLOG_HH_

#define PFLOGIFS_MAX    16

#ifdef _KERNEL
struct pflog_softc {
#ifdef __FreeBSD__
        struct ifnet            *sc_ifp;        /* the interface pointer */
#else
        struct ifnet            sc_if;          /* the interface */
#endif
        int                     sc_unit;
        LIST_ENTRY(pflog_softc) sc_list;
};
#endif /* _KERNEL */

#define PFLOG_RULESET_NAME_SIZE 16

struct pfloghdr {
        u_int8_t        length;
        sa_family_t     af;
        u_int8_t        action;
        u_int8_t        reason;
        char            ifname[IFNAMSIZ];
        char            ruleset[PFLOG_RULESET_NAME_SIZE];
        u_int32_t       rulenr;
        u_int32_t       subrulenr;
        uid_t           uid;
        pid_t           pid;
        uid_t           rule_uid;
        pid_t           rule_pid;
        u_int8_t        dir;
        u_int8_t        pad[3];
};

#define PFLOG_HDRLEN            sizeof(struct pfloghdr)
/* minus pad, also used as a signature */
#define PFLOG_REAL_HDRLEN       offsetof(struct pfloghdr, pad)

/* XXX remove later when old format logs are no longer needed */
struct old_pfloghdr {
        u_int32_t af;
        char ifname[IFNAMSIZ];
        short rnr;
        u_short reason;
        u_short action;
        u_short dir;
};
#define OLD_PFLOG_HDRLEN        sizeof(struct old_pfloghdr)

#ifdef _KERNEL

#ifdef __FreeBSD__
struct pf_rule;
struct pf_ruleset;
struct pfi_kif;
struct pf_pdesc;

typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
    u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
    struct pf_ruleset *, struct pf_pdesc *);
extern pflog_packet_t *pflog_packet_ptr;
#define PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) do {  \
        if (pflog_packet_ptr != NULL)           \
        pflog_packet_ptr(i,a,b,c,d,e,f,g,h);    \
} while (0)
#else /* ! __FreeBSD__ */
#if NPFLOG > 0
#define PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) pflog_packet(i,a,b,c,d,e,f,g,h)
#else
#define PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) ((void)0)
#endif /* NPFLOG > 0 */
#endif /* __FreeBSD__ */
#endif /* _KERNEL */
#endif /* _NET_IF_PFLOG_HH_ */