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a267d569ee
When the kernel filter is anything more sophisticated than FILTER_ACCEPT or FILTER_REJECT, we should ensure that the old route being sent to the kernel protocol is really what was sent there before. This fixes the old misbehavior when an unfiltered old route was used.
140 lines
3.0 KiB
Plaintext
140 lines
3.0 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 "sysdep/unix/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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#define KIF_IFACE ((struct kif_iface_config *) this_ipatt)
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static void
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kif_set_preferred(ip_addr ip)
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{
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if (ipa_is_ip4(ip))
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KIF_IFACE->pref_v4 = ip;
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else if (!ipa_is_link_local(ip))
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KIF_IFACE->pref_v6 = ip;
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else
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KIF_IFACE->pref_ll = ip;
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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_KEYWORDS(INTERFACE, PREFERRED)
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%type <i> kern_mp_limit
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%type <cc> kern_channel_start kern_proto_channel
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CF_GRAMMAR
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/* Kernel syncer protocol */
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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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kern_proto: kern_proto_start proto_name '{' ;
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kern_proto: kern_proto kern_item ';' ;
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kern_mp_limit:
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/* empty */ { $$ = KRT_DEFAULT_ECMP_LIMIT; }
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| LIMIT expr { $$ = $2; if (($2 <= 0) || ($2 > 255)) cf_error("Merge paths limit must be in range 1-255"); }
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;
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kern_channel_start: net_type
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{
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$$ = this_channel = channel_config_get(&channel_krt, net_label[$1], $1, this_proto);
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this_proto->net_type = $1;
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};
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kern_proto_channel: kern_channel_start channel_opt_list channel_end;
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kern_item:
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proto_item
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| kern_proto_channel
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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 S_;
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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 on this platform");
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#endif
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}
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| GRACEFUL RESTART bool { THIS_KRT->graceful_restart = $3; }
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| MERGE PATHS bool kern_mp_limit {
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THIS_KRT->merge_paths = $3 ? $4 : 0;
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#ifndef KRT_ALLOW_MERGE_PATHS
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if ($3)
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cf_error("Path merging not supported on this platform");
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#endif
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}
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;
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/* Kernel interface protocol */
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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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kif_proto: kif_proto_start proto_name '{' ;
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kif_proto: kif_proto kif_item ';' ;
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kif_item:
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proto_item
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| INTERFACE kif_iface
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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 S_;
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}
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;
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kif_iface_start:
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{
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this_ipatt = cfg_allocz(sizeof(struct kif_iface_config));
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add_tail(&THIS_KIF->iface_list, NODE this_ipatt);
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init_list(&this_ipatt->ipn_list);
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}
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kif_iface_item:
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PREFERRED ipa { kif_set_preferred($2); }
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;
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kif_iface_opts:
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/* empty */
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| kif_iface_opts kif_iface_item ';'
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;
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kif_iface_opt_list:
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/* empty */
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| '{' kif_iface_opts '}'
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;
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kif_iface:
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kif_iface_start iface_patt_list_nopx kif_iface_opt_list;
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dynamic_attr: KRT_SOURCE { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_KRT_SOURCE); } ;
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dynamic_attr: KRT_METRIC { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_KRT_METRIC); } ;
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CF_CODE
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CF_END
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