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[FreeBSD/releng/10.0.git] / contrib / ipfilter / lib / remove_hash.c
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 }