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