1/*
2 * Copyright (C) 2003 by Darren Reed.
3 *
4 * See the IPFILTER.LICENCE file for details on licencing.
5 *
6 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
7 */
8
9#ifndef __IP_HTABLE_H__
10#define __IP_HTABLE_H__
11
12#include "netinet/ip_lookup.h"
13
14typedef	struct	iphtent_s	{
15	struct	iphtent_s	*ipe_next, **ipe_pnext;
16	struct	iphtent_s	*ipe_snext, **ipe_psnext;
17	void		*ipe_ptr;
18	sa_family_t	ipe_family;
19	i6addr_t	ipe_addr;
20	i6addr_t	ipe_mask;
21	U_QUAD_T	ipe_hits;
22	U_QUAD_T	ipe_bytes;
23	int		ipe_ref;
24	union	{
25		char	ipeu_char[16];
26		u_long	ipeu_long;
27		u_int	ipeu_int;
28	}ipe_un;
29} iphtent_t;
30
31#define	ipe_value	ipe_un.ipeu_int
32#define	ipe_group	ipe_un.ipeu_char
33
34#define	IPE_HASH_FN(a, m, s)	(((a) * (m)) % (s))
35
36
37typedef	struct	iphtable_s	{
38	ipfrwlock_t	iph_rwlock;
39	struct	iphtable_s	*iph_next, **iph_pnext;
40	struct	iphtent_s	**iph_table;
41	struct	iphtent_s	*iph_list;
42	size_t	iph_size;		/* size of hash table */
43	u_long	iph_seed;		/* hashing seed */
44	u_32_t	iph_flags;
45	u_int	iph_unit;		/* IPL_LOG* */
46	u_int	iph_ref;
47	u_int	iph_type;		/* lookup or group map  - IPHASH_* */
48	u_int	iph_masks[4];		/* IPv4 or IPv6 netmasks in use */
49	char	iph_name[FR_GROUPLEN];	/* hash table number */
50} iphtable_t;
51
52
53/* iph_type */
54#define	IPHASH_LOOKUP	0
55#define	IPHASH_GROUPMAP	1
56#define	IPHASH_ANON	0x80000000
57
58
59typedef	struct	iphtstat_s	{
60	iphtable_t	*iphs_tables;
61	u_long		iphs_numtables;
62	u_long		iphs_numnodes;
63	u_long		iphs_nomem;
64	u_long		iphs_pad[16];
65} iphtstat_t;
66
67
68extern void fr_htable_unload __P((ipf_stack_t *));
69extern int fr_newhtable __P((iplookupop_t *, ipf_stack_t *));
70extern iphtable_t *fr_findhtable __P((int, char *, ipf_stack_t *));
71extern int fr_removehtable __P((iplookupop_t *, ipf_stack_t *));
72extern size_t fr_flushhtable __P((iplookupflush_t *, ipf_stack_t *));
73extern int fr_addhtent __P((iphtable_t *, iphtent_t *, ipf_stack_t *));
74extern int fr_delhtent __P((iphtable_t *, iphtent_t *, ipf_stack_t *));
75extern void fr_derefhtable __P((iphtable_t *, ipf_stack_t *));
76extern void fr_derefhtent __P((iphtent_t *));
77extern void fr_delhtable __P((iphtable_t *, ipf_stack_t *));
78extern void *fr_iphmfindgroup __P((void *, int, void *, ipf_stack_t *));
79extern int fr_iphmfindip __P((void *, int, void *, fr_info_t *, ipf_stack_t *));
80extern int fr_gethtablestat __P((iplookupop_t *, ipf_stack_t *));
81extern int fr_htable_getnext __P((ipftoken_t *, ipflookupiter_t *, ipf_stack_t *));
82extern void fr_htable_iterderef __P((u_int, int, void *, ipf_stack_t *));
83
84#endif /* __IP_HTABLE_H__ */
85