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/*
* Copyright (C) 1993-2001 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*
* @(#)ip_frag.h 1.5 3/24/96
* $Id: ip_frag.h,v 2.4.2.2 2000/11/10 13:10:54 darrenr Exp $
* $FreeBSD$
*/
#ifndef __IP_FRAG_H__
#define __IP_FRAG_H__
#define IPFT_SIZE 257
typedef struct ipfr {
struct ipfr *ipfr_next, *ipfr_prev;
void *ipfr_data;
struct in_addr ipfr_src;
struct in_addr ipfr_dst;
void *ipfr_ifp;
u_32_t ipfr_optmsk;
u_short ipfr_secmsk;
u_short ipfr_auth;
u_short ipfr_id;
u_char ipfr_p;
u_char ipfr_tos;
u_short ipfr_off;
u_char ipfr_ttl;
u_char ipfr_seen0;
frentry_t *ipfr_rule;
} ipfr_t;
typedef struct ipfrstat {
u_long ifs_exists; /* add & already exists */
u_long ifs_nomem;
u_long ifs_new;
u_long ifs_hits;
u_long ifs_expire;
u_long ifs_inuse;
struct ipfr **ifs_table;
struct ipfr **ifs_nattab;
} ipfrstat_t;
#define IPFR_CMPSZ (offsetof(ipfr_t, ipfr_off) - \
offsetof(ipfr_t, ipfr_src))
extern int fr_ipfrttl;
extern int fr_frag_lock;
extern ipfrstat_t *ipfr_fragstats __P((void));
extern int ipfr_newfrag __P((ip_t *, fr_info_t *));
extern int ipfr_nat_newfrag __P((ip_t *, fr_info_t *, struct nat *));
extern nat_t *ipfr_nat_knownfrag __P((ip_t *, fr_info_t *));
extern frentry_t *ipfr_knownfrag __P((ip_t *, fr_info_t *));
extern void ipfr_forget __P((void *));
extern void ipfr_forgetnat __P((void *));
extern void ipfr_unload __P((void));
extern void ipfr_fragexpire __P((void));
#ifdef _KERNEL
# if (BSD >= 199306) || SOLARIS || defined(__sgi)
# if defined(SOLARIS2) && (SOLARIS2 < 7)
extern void ipfr_slowtimer __P((void));
# else
extern void ipfr_slowtimer __P((void *));
# endif
# else
extern int ipfr_slowtimer __P((void));
# endif /* (BSD >= 199306) || SOLARIS */
#else
extern void ipfr_slowtimer __P((void));
#endif /* _KERNEL */
#endif /* __IP_FIL_H__ */
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