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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 2.23.2.2 2005/06/10 18:02:37 darrenr Exp $
*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef __IP_FRAG_H__
#define __IP_FRAG_H__
#define IPFT_SIZE 257
typedef struct ipfr {
struct ipfr *ipfr_hnext, **ipfr_hprev;
struct ipfr *ipfr_next, **ipfr_prev;
void *ipfr_data;
void *ipfr_ifp;
i6addr_t ipfr_src;
i6addr_t ipfr_dst;
u_32_t ipfr_optmsk;
u_short ipfr_secmsk;
u_short ipfr_auth;
u_32_t ipfr_id;
u_32_t ipfr_p;
u_32_t ipfr_tos;
u_32_t ipfr_pass;
u_short ipfr_off;
u_long ipfr_ttl;
u_char ipfr_seen0;
frentry_t *ipfr_rule;
int ipfr_ref;
} 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;
u_long ifs_retrans0;
u_long ifs_short;
struct ipfr **ifs_table;
struct ipfr **ifs_nattab;
} ipfrstat_t;
#define IPFR_CMPSZ (offsetof(ipfr_t, ipfr_tos) - \
offsetof(ipfr_t, ipfr_ifp))
extern int fr_fraginit __P((ipf_stack_t *));
extern void fr_fragunload __P((ipf_stack_t *));
extern ipfrstat_t *fr_fragstats __P((ipf_stack_t *));
extern int fr_newfrag __P((fr_info_t *, u_32_t));
extern frentry_t *fr_knownfrag __P((fr_info_t *, u_32_t *));
extern int fr_nat_newfrag __P((fr_info_t *, u_32_t, struct nat *));
extern nat_t *fr_nat_knownfrag __P((fr_info_t *));
extern int fr_ipid_newfrag __P((fr_info_t *, u_32_t));
extern u_32_t fr_ipid_knownfrag __P((fr_info_t *));
extern void fr_fragderef __P((ipfr_t **, ipfrwlock_t *, ipf_stack_t *));
extern void fr_forget __P((void *, ipf_stack_t *));
extern void fr_forgetnat __P((void *, ipf_stack_t *));
extern void fr_fragclear __P((ipf_stack_t *));
extern void fr_fragexpire __P((ipf_stack_t *));
extern int fr_nextfrag __P((ipftoken_t *, ipfgeniter_t *, ipfr_t **, \
ipfr_t ***, ipfrwlock_t *, ipf_stack_t *));
#if defined(_KERNEL) && ((BSD >= 199306) || defined(SOLARIS) || \
defined(__sgi) || defined(__osf__) || \
(defined(__sgi) && (IRIX >= 60500)))
# if defined(SOLARIS2) && (SOLARIS2 < 7)
extern void fr_slowtimer __P((void *));
# else
extern void fr_slowtimer __P((void *));
# endif
#else
# if defined(linux) && defined(_KERNEL)
extern void fr_slowtimer __P((long));
# else
extern int fr_slowtimer __P((void *));
# endif
#endif
#endif /* __IP_FRAG_H__ */
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