xref: /freebsd/sbin/ipf/libipf/remove_hash.c (revision ec0ea6efa1ad229d75c394c1a9b9cac33af2b1d3)
1 /*	$FreeBSD$	*/
2 
3 /*
4  * Copyright (C) 2012 by Darren Reed.
5  *
6  * See the IPFILTER.LICENCE file for details on licencing.
7  *
8  * $Id$
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 
17 
18 int
19 remove_hash(iphp, iocfunc)
20 	iphtable_t *iphp;
21 	ioctlfunc_t iocfunc;
22 {
23 	iplookupop_t op;
24 	iphtable_t iph;
25 
26 	if (pool_open() == -1)
27 		return -1;
28 
29 	op.iplo_type = IPLT_HASH;
30 	op.iplo_unit = iphp->iph_unit;
31 	strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name));
32 	if (*op.iplo_name == '\0')
33 		op.iplo_arg = IPHASH_ANON;
34 	op.iplo_size = sizeof(iph);
35 	op.iplo_struct = &iph;
36 
37 	bzero((char *)&iph, sizeof(iph));
38 	iph.iph_unit = iphp->iph_unit;
39 	iph.iph_type = iphp->iph_type;
40 	strncpy(iph.iph_name, iphp->iph_name, sizeof(iph.iph_name));
41 	iph.iph_flags = iphp->iph_flags;
42 
43 	if (pool_ioctl(iocfunc, SIOCLOOKUPDELTABLE, &op)) {
44 		if ((opts & OPT_DONOTHING) == 0) {
45 			return ipf_perror_fd(pool_fd(), iocfunc,
46 					     "remove lookup hash table");
47 		}
48 	}
49 	return 0;
50 }
51