load_hashnode.c revision 153881 
1/*	$FreeBSD: head/contrib/ipfilter/lib/load_hashnode.c 153881 2005-12-30 11:52:26Z guido $	*/
2
3/*
4 * Copyright (C) 2002 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 *
8 * $Id: load_hashnode.c,v 1.2.4.1 2004/03/06 14:33:28 darrenr Exp $
9 */
10
11#include <fcntl.h>
12#include <sys/ioctl.h>
13#include "ipf.h"
14#include "netinet/ip_lookup.h"
15#include "netinet/ip_htable.h"
16
17static int hashfd = -1;
18
19
20int load_hashnode(unit, name, node, iocfunc)
21int unit;
22char *name;
23iphtent_t *node;
24ioctlfunc_t iocfunc;
25{
26	iplookupop_t op;
27	iphtent_t ipe;
28	int err;
29
30	if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
31		hashfd = open(IPLOOKUP_NAME, O_RDWR);
32	if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
33		return -1;
34
35	op.iplo_type = IPLT_HASH;
36	op.iplo_unit = unit;
37	op.iplo_arg = 0;
38	op.iplo_size = sizeof(ipe);
39	op.iplo_struct = &ipe;
40	strncpy(op.iplo_name, name, sizeof(op.iplo_name));
41
42	bzero((char *)&ipe, sizeof(ipe));
43	bcopy((char *)&node->ipe_addr, (char *)&ipe.ipe_addr,
44	      sizeof(ipe.ipe_addr));
45	bcopy((char *)&node->ipe_mask, (char *)&ipe.ipe_mask,
46	      sizeof(ipe.ipe_mask));
47	bcopy((char *)&node->ipe_group, (char *)&ipe.ipe_group,
48	      sizeof(ipe.ipe_group));
49
50	if ((opts & OPT_REMOVE) == 0)
51		err = (*iocfunc)(hashfd, SIOCLOOKUPADDNODE, &op);
52	else
53		err = (*iocfunc)(hashfd, SIOCLOOKUPDELNODE, &op);
54
55	if (err != 0)
56		if (!(opts & OPT_DONOTHING)) {
57			perror("load_hash:SIOCLOOKUP*NODE");
58			return -1;
59		}
60	return 0;
61}
62