1/*	$FreeBSD$	*/
2
3/*
4 * Copyright (C) 2012 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 *
8 * @(#)ip_frag.h	1.5 3/24/96
9 * $FreeBSD$
10 * Id: ip_frag.h,v 2.23.2.1 2004/03/29 16:21:56 darrenr Exp
11 */
12
13#ifndef	__IP_FRAG_H__
14#define	__IP_FRAG_H__
15
16#define	IPFT_SIZE	257
17
18typedef	struct	ipfr	{
19	struct	ipfr	*ipfr_hnext, **ipfr_hprev;
20	struct	ipfr	*ipfr_next, **ipfr_prev;
21	void	*ipfr_data;
22	frentry_t *ipfr_rule;
23	u_long	ipfr_ttl;
24	u_int	ipfr_pkts;
25	u_int	ipfr_bytes;
26	u_int	ipfr_badorder;
27	int	ipfr_ref;
28	u_short	ipfr_off;
29	u_short	ipfr_firstend;
30	u_char	ipfr_p;
31	u_char	ipfr_seen0;
32	/*
33	 * All of the fields, from ipfr_ifp to ipfr_pass, are compared
34	 * using bcmp to see if an identical entry is present.  It is
35	 * therefore important for this set to remain together.
36	 */
37	void	*ipfr_ifp;
38	i6addr_t	ipfr_source;
39	i6addr_t	ipfr_dest;
40	u_32_t	ipfr_optmsk;
41	u_short	ipfr_secmsk;
42	u_short	ipfr_auth;
43	u_32_t	ipfr_id;
44	u_32_t	ipfr_pass;
45	int	ipfr_v;
46} ipfr_t;
47
48#define	ipfr_src	ipfr_source.in4
49#define	ipfr_dst	ipfr_dest.in4
50
51
52typedef	struct	ipfrstat {
53	u_long	ifs_exists;	/* add & already exists */
54	u_long	ifs_nomem;
55	u_long	ifs_new;
56	u_long	ifs_hits;
57	u_long	ifs_expire;
58	u_long	ifs_inuse;
59	u_long	ifs_retrans0;
60	u_long	ifs_short;
61	u_long	ifs_bad;
62	u_long	ifs_overlap;
63	u_long	ifs_unordered;
64	u_long	ifs_strict;
65	u_long	ifs_miss;
66	u_long	ifs_maximum;
67	u_long	ifs_newbad;
68	u_long	ifs_newrestrictnot0;
69	struct	ipfr	**ifs_table;
70	struct	ipfr	**ifs_nattab;
71} ipfrstat_t;
72
73#define	IPFR_CMPSZ	(offsetof(ipfr_t, ipfr_pass) - \
74			 offsetof(ipfr_t, ipfr_ifp))
75
76extern	void	*ipf_frag_soft_create __P((ipf_main_softc_t *));
77extern	int	ipf_frag_soft_init __P((ipf_main_softc_t *, void *));
78extern	int	ipf_frag_soft_fini __P((ipf_main_softc_t *, void *));
79extern	void	ipf_frag_soft_destroy __P((ipf_main_softc_t *, void *));
80extern	int	ipf_frag_main_load __P((void));
81extern	int	ipf_frag_main_unload __P((void));
82extern	int	ipf_frag_load __P((void));
83extern	void	ipf_frag_clear __P((ipf_main_softc_t *));
84extern	void	ipf_frag_expire __P((ipf_main_softc_t *));
85extern	void	ipf_frag_forget __P((void *));
86extern	int	ipf_frag_init __P((void));
87extern	u_32_t	ipf_frag_ipidknown __P((fr_info_t *));
88extern	int	ipf_frag_ipidnew __P((fr_info_t *, u_32_t));
89extern	frentry_t *ipf_frag_known __P((fr_info_t *, u_32_t *));
90extern	void	ipf_frag_natforget __P((ipf_main_softc_t *, void *));
91extern	int	ipf_frag_natnew __P((ipf_main_softc_t *, fr_info_t *, u_32_t, struct nat *));
92extern	nat_t	*ipf_frag_natknown __P((fr_info_t *));
93extern	int	ipf_frag_new __P((ipf_main_softc_t *, fr_info_t *, u_32_t));
94extern	ipfrstat_t	*ipf_frag_stats __P((void *));
95extern	void	ipf_frag_setlock __P((void *, int));
96extern	void	ipf_frag_pkt_deref __P((ipf_main_softc_t *, void *));
97extern	int	ipf_frag_pkt_next __P((ipf_main_softc_t *, ipftoken_t *,
98				       ipfgeniter_t *));
99extern	void	ipf_frag_nat_deref __P((ipf_main_softc_t *, void *));
100extern	int	ipf_frag_nat_next __P((ipf_main_softc_t *, ipftoken_t *,
101				       ipfgeniter_t *));
102extern	void	ipf_slowtimer __P((ipf_main_softc_t *));
103
104#endif	/* __IP_FRAG_H__ */
105