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https://gitlab.nic.cz/labs/bird.git
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f4a60a9bc4
The patch adds support for channels, structures connecting protocols and tables and handling most interactions between them. The documentation is missing yet.
96 lines
2.4 KiB
Plaintext
96 lines
2.4 KiB
Plaintext
/*
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* BIRD -- UNIX Kernel Syncer Configuration
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*
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* (c) 1998--2000 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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CF_HDR
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#include "lib/krt.h"
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CF_DEFINES
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#define THIS_KRT ((struct krt_config *) this_proto)
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#define THIS_KIF ((struct kif_config *) this_proto)
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static void
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krt_set_merge_paths(struct channel_config *cc, uint merge, uint limit)
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{
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if ((limit <= 0) || (limit > 255))
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cf_error("Merge paths limit must be in range 1-255");
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cc->ra_mode = merge ? RA_MERGED : RA_OPTIMAL;
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cc->merge_limit = limit;
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}
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CF_DECLS
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CF_KEYWORDS(KERNEL, PERSIST, SCAN, TIME, LEARN, DEVICE, ROUTES, GRACEFUL, RESTART, KRT_SOURCE, KRT_METRIC, MERGE, PATHS)
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CF_GRAMMAR
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/* Kernel syncer protocol */
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CF_ADDTO(proto, kern_proto '}')
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kern_proto_start: proto_start KERNEL {
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this_proto = krt_init_config($1);
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}
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;
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CF_ADDTO(kern_proto, kern_proto_start proto_name '{')
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CF_ADDTO(kern_proto, kern_proto kern_item ';')
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kern_item:
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proto_item
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| proto_channel { this_proto->net_type = $1->net_type; }
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| PERSIST bool { THIS_KRT->persist = $2; }
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| SCAN TIME expr {
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/* Scan time of 0 means scan on startup only */
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THIS_KRT->scan_time = $3;
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}
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| LEARN bool {
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THIS_KRT->learn = $2;
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#ifndef KRT_ALLOW_LEARN
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if ($2)
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cf_error("Learning of kernel routes not supported in this configuration");
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#endif
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}
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| DEVICE ROUTES bool { THIS_KRT->devroutes = $3; }
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| GRACEFUL RESTART bool { THIS_KRT->graceful_restart = $3; }
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| MERGE PATHS bool { krt_set_merge_paths(this_channel, $3, KRT_DEFAULT_ECMP_LIMIT); }
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| MERGE PATHS bool LIMIT expr { krt_set_merge_paths(this_channel, $3, $5); }
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;
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/* Kernel interface protocol */
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CF_ADDTO(proto, kif_proto '}')
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kif_proto_start: proto_start DEVICE { this_proto = kif_init_config($1); }
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;
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CF_ADDTO(kif_proto, kif_proto_start proto_name '{')
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CF_ADDTO(kif_proto, kif_proto kif_item ';')
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kif_item:
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proto_item
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| SCAN TIME expr {
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/* Scan time of 0 means scan on startup only */
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THIS_KIF->scan_time = $3;
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}
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| PRIMARY opttext net_or_ipa {
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struct kif_primary_item *kpi = cfg_alloc(sizeof (struct kif_primary_item));
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kpi->addr = $3;
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add_tail(&THIS_KIF->primary, &kpi->n);
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}
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;
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CF_ADDTO(dynamic_attr, KRT_SOURCE { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_KRT_SOURCE); })
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CF_ADDTO(dynamic_attr, KRT_METRIC { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_KRT_METRIC); })
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CF_CODE
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CF_END
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