dist/ipf/lib/remove_hashnode.c

   1 /*      $NetBSD$        */
   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 }