NetBSD/sys/netinet/ip_frag.h

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/* $NetBSD: ip_frag.h,v 1.17 2002/01/24 08:23:12 martti Exp $ */
/*
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* Copyright (C) 1993-2001 by Darren Reed.
*
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* See the IPFILTER.LICENCE file for details on licencing.
*
* @(#)ip_frag.h 1.5 3/24/96
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* Id: ip_frag.h,v 2.4.2.6 2002/01/01 15:09:38 darrenr Exp
*/
#ifndef _NETINET_IP_FRAG_H_
#define _NETINET_IP_FRAG_H_
#define IPFT_SIZE 257
typedef struct ipfr {
struct ipfr *ipfr_next, *ipfr_prev;
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void *ipfr_data;
struct in_addr ipfr_src;
struct in_addr ipfr_dst;
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void *ipfr_ifp;
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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;
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u_char ipfr_ttl;
u_char ipfr_seen0;
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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;
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struct ipfr **ifs_nattab;
} ipfrstat_t;
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#define IPFR_CMPSZ (offsetof(ipfr_t, ipfr_off) - \
offsetof(ipfr_t, ipfr_src))
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extern int fr_ipfrttl;
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extern int fr_frag_lock;
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extern ipfrstat_t *ipfr_fragstats __P((void));
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extern int ipfr_newfrag __P((ip_t *, fr_info_t *, u_int));
extern int ipfr_nat_newfrag __P((ip_t *, fr_info_t *, u_int, struct nat *));
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extern nat_t *ipfr_nat_knownfrag __P((ip_t *, fr_info_t *));
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extern frentry_t *ipfr_knownfrag __P((ip_t *, fr_info_t *));
extern void ipfr_forget __P((void *));
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extern void ipfr_unload __P((void));
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extern void ipfr_fragexpire __P((void));
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#ifdef _KERNEL
# if (BSD >= 199306) || SOLARIS || defined(__sgi)
# if defined(SOLARIS2) && (SOLARIS2 < 7)
extern void ipfr_slowtimer __P((void));
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# else
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extern void ipfr_slowtimer __P((void *));
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# endif
# else
extern int ipfr_slowtimer __P((void));
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# endif /* (BSD >= 199306) || SOLARIS */
#else
extern void ipfr_slowtimer __P((void));
#endif /* _KERNEL */
#endif /* _NETINET_IP_FRAG_H_ */