dist/ipf/lib/load_hashnode.c

   1 /*      $NetBSD$        */
   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 }