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|
/*
* BIRD -- UNIX Kernel Syncer Configuration
*
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
CF_HDR
#include "sysdep/unix/krt.h"
CF_DEFINES
#define THIS_KRT ((struct krt_config *) this_proto)
#define THIS_KIF ((struct kif_config *) this_proto)
#define KIF_IFACE ((struct kif_iface_config *) this_ipatt)
static void
kif_set_preferred(ip_addr ip)
{
if (ipa_is_ip4(ip))
KIF_IFACE->pref_v4 = ip;
else if (!ipa_is_link_local(ip))
KIF_IFACE->pref_v6 = ip;
else
KIF_IFACE->pref_ll = ip;
}
CF_DECLS
CF_KEYWORDS(KERNEL, PERSIST, SCAN, TIME, LEARN, DEVICE, ROUTES, GRACEFUL, RESTART, KRT_SOURCE, KRT_METRIC, MERGE, PATHS)
CF_KEYWORDS(INTERFACE, PREFERRED)
%type <i> kern_mp_limit
CF_GRAMMAR
/* Kernel syncer protocol */
proto: kern_proto '}' ;
kern_proto_start: proto_start KERNEL {
this_proto = krt_init_config($1);
}
;
kern_proto: kern_proto_start proto_name '{' ;
kern_proto: kern_proto kern_item ';' ;
kern_mp_limit:
/* empty */ { $$ = KRT_DEFAULT_ECMP_LIMIT; }
| LIMIT expr { $$ = $2; if (($2 <= 0) || ($2 > 255)) cf_error("Merge paths limit must be in range 1-255"); }
;
kern_item:
proto_item
| proto_channel { this_proto->net_type = $1->net_type; }
| PERSIST bool { THIS_KRT->persist = $2; }
| SCAN TIME expr {
/* Scan time of 0 means scan on startup only */
THIS_KRT->scan_time = $3 S_;
}
| LEARN bool {
THIS_KRT->learn = $2;
#ifndef KRT_ALLOW_LEARN
if ($2)
cf_error("Learning of kernel routes not supported on this platform");
#endif
}
| GRACEFUL RESTART bool { THIS_KRT->graceful_restart = $3; }
| MERGE PATHS bool kern_mp_limit {
THIS_KRT->merge_paths = $3 ? $4 : 0;
#ifndef KRT_ALLOW_MERGE_PATHS
if ($3)
cf_error("Path merging not supported on this platform");
#endif
}
;
/* Kernel interface protocol */
proto: kif_proto '}' ;
kif_proto_start: proto_start DEVICE { this_proto = kif_init_config($1); }
;
kif_proto: kif_proto_start proto_name '{' ;
kif_proto: kif_proto kif_item ';' ;
kif_item:
proto_item
| INTERFACE kif_iface
| SCAN TIME expr {
/* Scan time of 0 means scan on startup only */
THIS_KIF->scan_time = $3 S_;
}
;
kif_iface_start:
{
this_ipatt = cfg_allocz(sizeof(struct kif_iface_config));
add_tail(&THIS_KIF->iface_list, NODE this_ipatt);
init_list(&this_ipatt->ipn_list);
}
kif_iface_item:
PREFERRED ipa { kif_set_preferred($2); }
;
kif_iface_opts:
/* empty */
| kif_iface_opts kif_iface_item ';'
;
kif_iface_opt_list:
/* empty */
| '{' kif_iface_opts '}'
;
kif_iface:
kif_iface_start iface_patt_list_nopx kif_iface_opt_list;
CF_CODE
CF_END
|
