dist/ipf/lib/load_pool.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2002-2005 by Darren Reed.
   5  *
   6  * See the IPFILTER.LICENCE file for details on licencing.
   7  *
   8  * Id: load_pool.c,v 1.14.2.4 2006/06/16 17:21:06 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_pool.h"
  16
  17 static int poolfd = -1;
  18
  19
  20 int load_pool(plp, iocfunc)
  21 ip_pool_t *plp;
  22 ioctlfunc_t iocfunc;
  23 {
  24         iplookupop_t op;
  25         ip_pool_node_t *a;
  26         ip_pool_t pool;
  27
  28         if ((poolfd == -1) && ((opts & OPT_DONOTHING) == 0))
  29                 poolfd = open(IPLOOKUP_NAME, O_RDWR);
  30         if ((poolfd == -1) && ((opts & OPT_DONOTHING) == 0))
  31                 return -1;
  32
  33         op.iplo_unit = plp->ipo_unit;
  34         op.iplo_type = IPLT_POOL;
  35         op.iplo_arg = 0;
  36         strncpy(op.iplo_name, plp->ipo_name, sizeof(op.iplo_name));
  37         op.iplo_size = sizeof(pool);
  38         op.iplo_struct = &pool;
  39         bzero((char *)&pool, sizeof(pool));
  40         strncpy(pool.ipo_name, plp->ipo_name, sizeof(pool.ipo_name));
  41         if (plp->ipo_name[0] == '\0')
  42                 op.iplo_arg |= IPOOL_ANON;
  43
  44         if ((opts & OPT_REMOVE) == 0) {
  45                 if ((*iocfunc)(poolfd, SIOCLOOKUPADDTABLE, &op))
  46                         if ((opts & OPT_DONOTHING) == 0) {
  47                                 perror("load_pool:SIOCLOOKUPADDTABLE");
  48                                 return -1;
  49                         }
  50         }
  51
  52         if (op.iplo_arg & IPOOL_ANON)
  53                 strncpy(pool.ipo_name, op.iplo_name, sizeof(pool.ipo_name));
  54
  55         if ((opts & OPT_VERBOSE) != 0) {
  56                 pool.ipo_list = plp->ipo_list;
  57                 printpool(&pool, bcopywrap, pool.ipo_name, opts);
  58                 pool.ipo_list = NULL;
  59         }
  60
  61         for (a = plp->ipo_list; a != NULL; a = a->ipn_next)
  62                 load_poolnode(plp->ipo_unit, pool.ipo_name, a, iocfunc);
  63
  64         if ((opts & OPT_REMOVE) != 0) {
  65                 if ((*iocfunc)(poolfd, SIOCLOOKUPDELTABLE, &op))
  66                         if ((opts & OPT_DONOTHING) == 0) {
  67                                 perror("load_pool:SIOCLOOKUPDELTABLE");
  68                                 return -1;
  69                         }
  70         }
  71         return 0;
  72 }