1 /*        $NetBSD: remove_hash.c,v 1.2 2012/07/22 14:27:37 darrenr Exp $        */
2 
3 /*
4  * Copyright (C) 2012 by Darren Reed.
5  *
6  * See the IPFILTER.LICENCE file for details on licencing.
7  *
8  * Id: remove_hash.c,v 1.1.1.2 2012/07/22 13:44:42 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 
17 
18 int
remove_hash(iphp,iocfunc)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