1/*
2 * Copyright (C) 2002 by Darren Reed.
3 *
4 * See the IPFILTER.LICENCE file for details on licencing.
5 *
6 * $Id: remove_hash.c,v 1.1 2003/04/13 06:40:14 darrenr Exp $
7 */
8
9#include <fcntl.h>
10#include <sys/ioctl.h>
11#include "ipf.h"
12#include "netinet/ip_lookup.h"
13#include "netinet/ip_htable.h"
14
15static int hashfd = -1;
16
17
18int remove_hash(iphp, iocfunc)
19iphtable_t *iphp;
20ioctlfunc_t iocfunc;
21{
22	iplookupop_t op;
23	iphtable_t iph;
24
25	if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
26		hashfd = open(IPLOOKUP_NAME, O_RDWR);
27	if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
28		return -1;
29
30	op.iplo_type = IPLT_HASH;
31	op.iplo_unit = iphp->iph_unit;
32	strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name));
33	if (*op.iplo_name == '\0')
34		op.iplo_arg = IPHASH_ANON;
35	op.iplo_size = sizeof(iph);
36	op.iplo_struct = &iph;
37
38	bzero((char *)&iph, sizeof(iph));
39	iph.iph_unit = iphp->iph_unit;
40	iph.iph_type = iphp->iph_type;
41	strncpy(iph.iph_name, iphp->iph_name, sizeof(iph.iph_name));
42	iph.iph_flags = iphp->iph_flags;
43
44	if ((*iocfunc)(hashfd, SIOCLOOKUPDELTABLE, &op))
45		if ((opts & OPT_DONOTHING) == 0) {
46			perror("remove_hash:SIOCLOOKUPDELTABLE");
47			return -1;
48		}
49
50	return 0;
51}
52