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[FreeBSD/releng/9.2.git] / contrib / ipfilter / lib / load_hashnode.c
1 /*      $FreeBSD$       */
2
3 /*
4  * Copyright (C) 2003-2005 by Darren Reed.
5  *
6  * See the IPFILTER.LICENCE file for details on licencing.
7  *
8  * $Id: load_hashnode.c,v 1.2.4.2 2006/06/16 17:21:05 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 load_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         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 }