sysdep/bsd/krt-sock.Y

   1 /*
   2  *      BIRD -- BSD Kernel Syncer Configuration
   3  *
   4  *      (c) 1999--2000 Martin Mares <mj@ucw.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 CF_HDR
  10
  11 CF_DECLS
  12
  13 CF_KEYWORDS(KERNEL, TABLE, METRIC)
  14
  15 CF_GRAMMAR
  16
  17 kern_proto: kern_proto kern_sys_item ';' ;
  18
  19 kern_sys_item:
  20    KERNEL TABLE expr {
  21         if ($3 && (krt_max_tables == 1))
  22           cf_error("Multiple kernel routing tables not supported");
  23         if ($3 >= krt_max_tables)
  24           cf_error("Kernel table id must be in range 0-%u", krt_max_tables - 1);
  25
  26         THIS_KRT->sys.table_id = $3;
  27    }
  28  | METRIC expr {
  29      if ($2 && !krt_max_metric)
  30        cf_error("Kernel route metric not supported");
  31      if ($2 > krt_max_metric)
  32        cf_error("Kernel table id must be in range 0-%u", krt_max_metric);
  33
  34      THIS_KRT->sys.metric = $2;
  35    }
  36  ;
  37
  38 CF_CODE
  39
  40 CF_END