sysdep/unix/krt.Y

   1 /*
   2  *      BIRD -- UNIX Kernel Syncer Configuration
   3  *
   4  *      (c) 1998--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 #include "lib/krt.h"
  12
  13 CF_DEFINES
  14
  15 #define THIS_KRT ((struct krt_config *) this_proto)
  16 #define THIS_KIF ((struct kif_config *) this_proto)
  17
  18 CF_DECLS
  19
  20 CF_KEYWORDS(KERNEL, PERSIST, SCAN, TIME, LEARN, DEVICE, ROUTES, GRACEFUL, RESTART, KRT_SOURCE, KRT_METRIC)
  21
  22 CF_GRAMMAR
  23
  24 /* Kernel syncer protocol */
  25
  26 CF_ADDTO(proto, kern_proto '}')
  27
  28 kern_proto_start: proto_start KERNEL { this_proto = krt_init_config($1); }
  29  ;
  30
  31 CF_ADDTO(kern_proto, kern_proto_start proto_name '{')
  32 CF_ADDTO(kern_proto, kern_proto proto_item ';')
  33 CF_ADDTO(kern_proto, kern_proto kern_item ';')
  34
  35 kern_item:
  36    PERSIST bool { THIS_KRT->persist = $2; }
  37  | SCAN TIME expr {
  38       /* Scan time of 0 means scan on startup only */
  39       THIS_KRT->scan_time = $3;
  40    }
  41  | LEARN bool {
  42       THIS_KRT->learn = $2;
  43 #ifndef KRT_ALLOW_LEARN
  44       if ($2)
  45         cf_error("Learning of kernel routes not supported in this configuration");
  46 #endif
  47    }
  48  | DEVICE ROUTES bool { THIS_KRT->devroutes = $3; }
  49  | GRACEFUL RESTART bool { THIS_KRT->graceful_restart = $3; }
  50  ;
  51
  52 /* Kernel interface protocol */
  53
  54 CF_ADDTO(proto, kif_proto '}')
  55
  56 kif_proto_start: proto_start DEVICE { this_proto = kif_init_config($1); }
  57  ;
  58
  59 CF_ADDTO(kif_proto, kif_proto_start proto_name '{')
  60 CF_ADDTO(kif_proto, kif_proto proto_item ';')
  61 CF_ADDTO(kif_proto, kif_proto kif_item ';')
  62
  63 kif_item:
  64    SCAN TIME expr {
  65       /* Scan time of 0 means scan on startup only */
  66       THIS_KIF->scan_time = $3;
  67    }
  68  | PRIMARY text_or_none prefix_or_ipa {
  69      struct kif_primary_item *kpi = cfg_alloc(sizeof (struct kif_primary_item));
  70      kpi->pattern = $2;
  71      kpi->prefix = $3.addr;
  72      kpi->pxlen = $3.len;
  73      add_tail(&THIS_KIF->primary, &kpi->n);
  74    }
  75  ;
  76
  77 CF_ADDTO(dynamic_attr, KRT_SOURCE { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_KRT_SOURCE); })
  78 CF_ADDTO(dynamic_attr, KRT_METRIC { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_KRT_METRIC); })
  79
  80 CF_CODE
  81
  82 CF_END