usr/src/cmd/ipf/lib/common/remove_hashnode.c

   1 /*
   2  * Copyright (C) 2002 by Darren Reed.
   3  *
   4  * See the IPFILTER.LICENCE file for details on licencing.
   5  *
   6  * $Id: remove_hashnode.c,v 1.1 2003/04/13 06:40:14 darrenr Exp $
   7  */
   8
   9 #include <fcntl.h>
  10 #include <sys/ioctl.h>
  11 #include "ipf.h"
  12 #include "netinet/ip_lookup.h"
  13 #include "netinet/ip_htable.h"
  14
  15 static int hashfd = -1;
  16
  17
  18 int remove_hashnode(unit, name, node, iocfunc)
  19 int unit;
  20 char *name;
  21 iphtent_t *node;
  22 ioctlfunc_t iocfunc;
  23 {
  24         iplookupop_t op;
  25         iphtent_t ipe;
  26
  27         if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
  28                 hashfd = open(IPLOOKUP_NAME, O_RDWR);
  29         if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
  30                 return -1;
  31
  32         op.iplo_type = IPLT_HASH;
  33         op.iplo_unit = unit;
  34         op.iplo_size = sizeof(ipe);
  35         op.iplo_struct = &ipe;
  36         op.iplo_arg = 0;
  37         strncpy(op.iplo_name, name, sizeof(op.iplo_name));
  38
  39         bzero((char *)&ipe, sizeof(ipe));
  40         bcopy((char *)&node->ipe_addr, (char *)&ipe.ipe_addr,
  41               sizeof(ipe.ipe_addr));
  42         bcopy((char *)&node->ipe_mask, (char *)&ipe.ipe_mask,
  43               sizeof(ipe.ipe_mask));
  44
  45         if (opts & OPT_DEBUG) {
  46                 printf("\t%s - ", inet_ntoa(ipe.ipe_addr.in4));
  47                 printf("%s\n", inet_ntoa(ipe.ipe_mask.in4));
  48         }
  49
  50         if ((*iocfunc)(hashfd, SIOCLOOKUPDELNODE, &op))
  51                 if (!(opts & OPT_DONOTHING)) {
  52                         perror("remove_hash:SIOCLOOKUPDELNODE");
  53                         return -1;
  54                 }
  55         return 0;
  56 }