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

   1 /*
   2  * Copyright (C) 2002 by Darren Reed.
   3  *
   4  * See the IPFILTER.LICENCE file for details on licencing.
   5  *
   6  * $Id: load_hashnode.c,v 1.2.4.1 2004/03/06 14:33:28 darrenr Exp $
   7  *
   8  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   9  * Use is subject to license terms.
  10  *
  11  * Copyright (c) 2014, Joyent, Inc.  All rights reserved.
  12  */
  13
  14 #include <fcntl.h>
  15 #include <sys/ioctl.h>
  16 #include "ipf.h"
  17 #include "netinet/ip_lookup.h"
  18 #include "netinet/ip_htable.h"
  19 #include "ipfzone.h"
  20
  21 static int hashfd = -1;
  22
  23
  24 int load_hashnode(unit, name, node, iocfunc)
  25 int unit;
  26 char *name;
  27 iphtent_t *node;
  28 ioctlfunc_t iocfunc;
  29 {
  30         iplookupop_t op;
  31         iphtent_t ipe;
  32         int err;
  33
  34         if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
  35                 hashfd = open(IPLOOKUP_NAME, O_RDWR);
  36         if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
  37                 return -1;
  38         if (setzone(hashfd) != 0) {
  39                 close(hashfd);
  40                 return -1;
  41         }
  42
  43         op.iplo_type = IPLT_HASH;
  44         op.iplo_unit = unit;
  45         op.iplo_arg = 0;
  46         op.iplo_size = sizeof(ipe);
  47         op.iplo_struct = &ipe;
  48         strncpy(op.iplo_name, name, sizeof(op.iplo_name));
  49
  50         bzero((char *)&ipe, sizeof(ipe));
  51         ipe.ipe_family = node->ipe_family;
  52         bcopy((char *)&node->ipe_addr, (char *)&ipe.ipe_addr,
  53               sizeof(ipe.ipe_addr));
  54         bcopy((char *)&node->ipe_mask, (char *)&ipe.ipe_mask,
  55               sizeof(ipe.ipe_mask));
  56         bcopy((char *)&node->ipe_group, (char *)&ipe.ipe_group,
  57               sizeof(ipe.ipe_group));
  58
  59         if ((opts & OPT_REMOVE) == 0)
  60                 err = (*iocfunc)(hashfd, SIOCLOOKUPADDNODE, &op);
  61         else
  62                 err = (*iocfunc)(hashfd, SIOCLOOKUPDELNODE, &op);
  63
  64         if (err != 0)
  65                 if (!(opts & OPT_DONOTHING)) {
  66                         perror("load_hash:SIOCLOOKUP*NODE");
  67                         return -1;
  68                 }
  69         return 0;
  70 }