bird/sysdep/unix/krt.Y
Martin Mares c10421d3d4 More changes to the kernel syncer.
o  Now compatible with filtering.
o  Learning of kernel routes supported only on CONFIG_SELF_CONSCIOUS
   systems (on the others it's impossible to get it semantically correct).
o  Learning now stores all of its routes in a separate fib and selects
   the ones the kernel really uses for forwarding packets.
o  Better treatment of CONFIG_AUTO_ROUTES ports.
o  Lots of internal changes.
1999-04-03 13:05:18 +00:00

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/*
* BIRD -- UNIX Kernel Syncer Configuration
*
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
CF_HDR
#include "lib/krt.h"
#define THIS_KRT ((struct krt_config *) this_proto)
#define THIS_KIF ((struct kif_config *) this_proto)
CF_DECLS
CF_KEYWORDS(KERNEL, PERSIST, SCAN, TIME, LEARN, DEVICE)
CF_GRAMMAR
/* Kernel syncer protocol */
CF_ADDTO(proto, kern_proto '}')
kern_proto_start: proto_start KERNEL {
if (cf_krt)
cf_error("Kernel protocol already defined");
cf_krt = this_proto = proto_config_new(&proto_unix_kernel, sizeof(struct krt_config));
this_proto->preference = 0;
THIS_KRT->scan_time = 60;
THIS_KRT->learn = THIS_KRT->persist = 0;
krt_scan_preconfig(THIS_KRT);
krt_set_preconfig(THIS_KRT);
}
;
CF_ADDTO(kern_proto, kern_proto_start proto_name '{')
CF_ADDTO(kern_proto, kern_proto proto_item ';')
CF_ADDTO(kern_proto, kern_proto kern_item ';')
kern_item:
PERSIST bool { THIS_KRT->persist = $2; }
| SCAN TIME expr {
/* Scan time of 0 means scan on startup only */
THIS_KRT->scan_time = $3;
}
| LEARN bool {
THIS_KRT->learn = $2;
#ifndef KRT_ALLOW_LEARN
if ($2)
cf_error("Learning of kernel routes not supported in this configuration");
#endif
}
;
/* Kernel interface protocol */
CF_ADDTO(proto, kif_proto '}')
kif_proto_start: proto_start DEVICE {
if (cf_kif)
cf_error("Kernel device protocol already defined");
cf_kif = this_proto = proto_config_new(&proto_unix_iface, sizeof(struct kif_config));
this_proto->preference = DEF_PREF_DIRECT;
THIS_KIF->scan_time = 60;
krt_if_preconfig(THIS_KIF);
}
;
CF_ADDTO(kif_proto, kif_proto_start '{')
CF_ADDTO(kif_proto, kif_proto proto_item ';')
CF_ADDTO(kif_proto, kif_proto kif_item ';')
kif_item:
SCAN TIME expr {
/* Scan time of 0 means scan on startup only */
THIS_KIF->scan_time = $3;
}
;
CF_CODE
CF_END