126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/* $FreeBSD$ */
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/*
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* Copyright (C) 2012 by Darren Reed.
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*
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* See the IPFILTER.LICENCE file for details on licencing.
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*
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* @(#)ip_frag.h 1.5 3/24/96
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* $FreeBSD$
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* Id: ip_frag.h,v 2.23.2.1 2004/03/29 16:21:56 darrenr Exp
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*/
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#ifndef __IP_FRAG_H__
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#define __IP_FRAG_H__
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#define IPFT_SIZE 257
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typedef struct ipfr {
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struct ipfr *ipfr_hnext, **ipfr_hprev;
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struct ipfr *ipfr_next, **ipfr_prev;
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void *ipfr_data;
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frentry_t *ipfr_rule;
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u_long ipfr_ttl;
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u_int ipfr_pkts;
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u_int ipfr_bytes;
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u_int ipfr_badorder;
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int ipfr_ref;
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u_short ipfr_off;
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u_short ipfr_firstend;
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u_char ipfr_p;
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u_char ipfr_seen0;
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/*
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* All of the fields, from ipfr_ifp to ipfr_pass, are compared
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* using bcmp to see if an identical entry is present. It is
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* therefore important for this set to remain together.
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*/
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void *ipfr_ifp;
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i6addr_t ipfr_source;
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i6addr_t ipfr_dest;
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u_32_t ipfr_optmsk;
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u_short ipfr_secmsk;
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u_short ipfr_auth;
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u_32_t ipfr_id;
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u_32_t ipfr_pass;
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int ipfr_v;
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} ipfr_t;
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#define ipfr_src ipfr_source.in4
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#define ipfr_dst ipfr_dest.in4
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typedef struct ipfrstat {
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u_long ifs_exists; /* add & already exists */
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u_long ifs_nomem;
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u_long ifs_new;
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u_long ifs_hits;
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u_long ifs_expire;
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u_long ifs_inuse;
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u_long ifs_retrans0;
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u_long ifs_short;
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u_long ifs_bad;
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u_long ifs_overlap;
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u_long ifs_unordered;
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u_long ifs_strict;
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u_long ifs_miss;
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u_long ifs_maximum;
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u_long ifs_newbad;
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u_long ifs_newrestrictnot0;
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struct ipfr **ifs_table;
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struct ipfr **ifs_nattab;
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} ipfrstat_t;
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typedef struct ipf_frag_softc_s {
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ipfrwlock_t ipfr_ipidfrag;
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ipfrwlock_t ipfr_frag;
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ipfrwlock_t ipfr_natfrag;
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int ipfr_size;
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int ipfr_ttl;
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int ipfr_lock;
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int ipfr_inited;
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ipftuneable_t *ipf_frag_tune;
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ipfr_t *ipfr_list;
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ipfr_t **ipfr_tail;
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ipfr_t *ipfr_natlist;
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ipfr_t **ipfr_nattail;
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ipfr_t *ipfr_ipidlist;
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ipfr_t **ipfr_ipidtail;
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ipfr_t **ipfr_heads;
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ipfr_t **ipfr_nattab;
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ipfr_t **ipfr_ipidtab;
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ipfrstat_t ipfr_stats;
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} ipf_frag_softc_t;
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#define IPFR_CMPSZ (offsetof(ipfr_t, ipfr_pass) - \
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offsetof(ipfr_t, ipfr_ifp))
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extern void *ipf_frag_soft_create __P((ipf_main_softc_t *));
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extern int ipf_frag_soft_init __P((ipf_main_softc_t *, void *));
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extern int ipf_frag_soft_fini __P((ipf_main_softc_t *, void *));
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extern void ipf_frag_soft_destroy __P((ipf_main_softc_t *, void *));
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extern int ipf_frag_main_load __P((void));
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extern int ipf_frag_main_unload __P((void));
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extern int ipf_frag_load __P((void));
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extern void ipf_frag_clear __P((ipf_main_softc_t *));
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extern void ipf_frag_expire __P((ipf_main_softc_t *));
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extern void ipf_frag_forget __P((void *));
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extern int ipf_frag_init __P((void));
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extern u_32_t ipf_frag_ipidknown __P((fr_info_t *));
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extern int ipf_frag_ipidnew __P((fr_info_t *, u_32_t));
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extern frentry_t *ipf_frag_known __P((fr_info_t *, u_32_t *));
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extern void ipf_frag_natforget __P((ipf_main_softc_t *, void *));
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extern int ipf_frag_natnew __P((ipf_main_softc_t *, fr_info_t *, u_32_t, struct nat *));
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extern nat_t *ipf_frag_natknown __P((fr_info_t *));
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extern int ipf_frag_new __P((ipf_main_softc_t *, fr_info_t *, u_32_t));
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extern ipfrstat_t *ipf_frag_stats __P((void *));
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extern void ipf_frag_setlock __P((void *, int));
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extern void ipf_frag_pkt_deref __P((ipf_main_softc_t *, void *));
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extern int ipf_frag_pkt_next __P((ipf_main_softc_t *, ipftoken_t *,
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ipfgeniter_t *));
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extern void ipf_frag_nat_deref __P((ipf_main_softc_t *, void *));
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extern int ipf_frag_nat_next __P((ipf_main_softc_t *, ipftoken_t *,
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ipfgeniter_t *));
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extern void ipf_slowtimer __P((ipf_main_softc_t *));
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#endif /* __IP_FRAG_H__ */
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