1/*	$NetBSD: iptable.h,v 1.4 2012/12/04 23:38:43 spz Exp $	*/
2
3/*
4 * Copyright (C) 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
11 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
12 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
13 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
14 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
15 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
16 * PERFORMANCE OF THIS SOFTWARE.
17 */
18
19/* Id: iptable.h,v 1.4 2007/09/14 01:46:05 marka Exp  */
20
21#ifndef DNS_IPTABLE_H
22#define DNS_IPTABLE_H 1
23
24#include <isc/lang.h>
25#include <isc/magic.h>
26#include <isc/radix.h>
27
28#include <dns/types.h>
29
30struct dns_iptable {
31	unsigned int		magic;
32	isc_mem_t		*mctx;
33	isc_refcount_t		refcount;
34	isc_radix_tree_t	*radix;
35	ISC_LINK(dns_iptable_t)	nextincache;
36};
37
38#define DNS_IPTABLE_MAGIC	ISC_MAGIC('T','a','b','l')
39#define DNS_IPTABLE_VALID(a)	ISC_MAGIC_VALID(a, DNS_IPTABLE_MAGIC)
40
41/***
42 *** Functions
43 ***/
44
45ISC_LANG_BEGINDECLS
46
47isc_result_t
48dns_iptable_create(isc_mem_t *mctx, dns_iptable_t **target);
49/*
50 * Create a new IP table and the underlying radix structure
51 */
52
53isc_result_t
54dns_iptable_addprefix(dns_iptable_t *tab, isc_netaddr_t *addr,
55		      isc_uint16_t bitlen, isc_boolean_t pos);
56/*
57 * Add an IP prefix to an existing IP table
58 */
59
60isc_result_t
61dns_iptable_merge(dns_iptable_t *tab, dns_iptable_t *source, isc_boolean_t pos);
62/*
63 * Merge one IP table into another one.
64 */
65
66void
67dns_iptable_attach(dns_iptable_t *source, dns_iptable_t **target);
68
69void
70dns_iptable_detach(dns_iptable_t **tabp);
71
72ISC_LANG_ENDDECLS
73
74#endif /* DNS_IPTABLE_H */
75