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[FreeBSD/releng/9.2.git] / contrib / ipfilter / lib / remove_hashnode.c
1 /*      $FreeBSD$       */
2
3 /*
4  * Copyright (C) 2003 by Darren Reed.
5  *
6  * See the IPFILTER.LICENCE file for details on licencing.
7  *
8  * $Id: remove_hashnode.c,v 1.1.4.1 2006/06/16 17:21:16 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 static int hashfd = -1;
18
19
20 int remove_hashnode(unit, name, node, iocfunc)
21 int unit;
22 char *name;
23 iphtent_t *node;
24 ioctlfunc_t iocfunc;
25 {
26         iplookupop_t op;
27         iphtent_t ipe;
28
29         if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
30                 hashfd = open(IPLOOKUP_NAME, O_RDWR);
31         if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
32                 return -1;
33
34         op.iplo_type = IPLT_HASH;
35         op.iplo_unit = unit;
36         op.iplo_size = sizeof(ipe);
37         op.iplo_struct = &ipe;
38         op.iplo_arg = 0;
39         strncpy(op.iplo_name, name, sizeof(op.iplo_name));
40
41         bzero((char *)&ipe, sizeof(ipe));
42         bcopy((char *)&node->ipe_addr, (char *)&ipe.ipe_addr,
43               sizeof(ipe.ipe_addr));
44         bcopy((char *)&node->ipe_mask, (char *)&ipe.ipe_mask,
45               sizeof(ipe.ipe_mask));
46
47         if (opts & OPT_DEBUG) {
48                 printf("\t%s - ", inet_ntoa(ipe.ipe_addr.in4));
49                 printf("%s\n", inet_ntoa(ipe.ipe_mask.in4));
50         }
51
52         if ((*iocfunc)(hashfd, SIOCLOOKUPDELNODE, &op))
53                 if (!(opts & OPT_DONOTHING)) {
54                         perror("remove_hash:SIOCLOOKUPDELNODE");
55                         return -1;
56                 }
57         return 0;
58 }