6cb8f742f1
Process well-known communities before the export filter (old behavior is to process these attributes after, which does not allow to send route with such community) and just for routes received from other BGP protocols. Also fixes a bug in next_hop check.
113 lines
4.9 KiB
Text
113 lines
4.9 KiB
Text
/*
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* BIRD -- Border Gateway Protocol Configuration
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*
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* (c) 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 "proto/bgp/bgp.h"
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CF_DEFINES
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#define BGP_CFG ((struct bgp_config *) this_proto)
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CF_DECLS
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CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY, KEEPALIVE,
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MULTIHOP, STARTUP, VIA, NEXT, HOP, SELF, DEFAULT, PATH, METRIC,
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ERROR, START, DELAY, FORGET, WAIT, ENABLE, DISABLE, AFTER,
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BGP_PATH, BGP_LOCAL_PREF, BGP_MED, BGP_ORIGIN, BGP_NEXT_HOP,
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BGP_ATOMIC_AGGR, BGP_AGGREGATOR, BGP_COMMUNITY, SOURCE, ADDRESS,
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PASSWORD, RR, RS, CLIENT, CLUSTER, ID, AS4, ADVERTISE, IPV4,
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CAPABILITIES, LIMIT, PASSIVE, PREFER, OLDER, MISSING, LLADDR,
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DROP, IGNORE, ROUTE, REFRESH, COMMUNITIES)
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CF_GRAMMAR
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CF_ADDTO(proto, bgp_proto '}' { bgp_check(BGP_CFG); } )
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bgp_proto_start: proto_start BGP {
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this_proto = proto_config_new(&proto_bgp, sizeof(struct bgp_config));
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this_proto->preference = DEF_PREF_BGP;
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BGP_CFG->hold_time = 240;
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BGP_CFG->connect_retry_time = 120;
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BGP_CFG->initial_hold_time = 240;
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BGP_CFG->compare_path_lengths = 1;
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BGP_CFG->start_delay_time = 5;
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BGP_CFG->error_amnesia_time = 300;
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BGP_CFG->error_delay_time_min = 60;
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BGP_CFG->error_delay_time_max = 300;
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BGP_CFG->enable_refresh = 1;
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BGP_CFG->enable_as4 = 1;
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BGP_CFG->capabilities = 2;
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BGP_CFG->advertise_ipv4 = 1;
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BGP_CFG->default_local_pref = 100;
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}
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;
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bgp_proto:
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bgp_proto_start proto_name '{'
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| bgp_proto proto_item ';'
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| bgp_proto LOCAL AS expr ';' { BGP_CFG->local_as = $4; }
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| bgp_proto NEIGHBOR ipa AS expr ';' {
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if (ipa_nonzero(BGP_CFG->remote_ip)) cf_error("Only one neighbor per BGP instance is allowed");
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BGP_CFG->remote_ip = $3;
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BGP_CFG->remote_as = $5;
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}
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| bgp_proto RR CLUSTER ID expr ';' { BGP_CFG->rr_cluster_id = $5; }
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| bgp_proto RR CLIENT ';' { BGP_CFG->rr_client = 1; }
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| bgp_proto RS CLIENT ';' { BGP_CFG->rs_client = 1; }
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| bgp_proto HOLD TIME expr ';' { BGP_CFG->hold_time = $4; }
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| bgp_proto STARTUP HOLD TIME expr ';' { BGP_CFG->initial_hold_time = $5; }
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| bgp_proto CONNECT RETRY TIME expr ';' { BGP_CFG->connect_retry_time = $5; }
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| bgp_proto KEEPALIVE TIME expr ';' { BGP_CFG->keepalive_time = $4; }
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| bgp_proto MULTIHOP expr VIA ipa ';' { BGP_CFG->multihop = $3; BGP_CFG->multihop_via = $5; }
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| bgp_proto NEXT HOP SELF ';' { BGP_CFG->next_hop_self = 1; }
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| bgp_proto MISSING LLADDR SELF ';' { BGP_CFG->missing_lladdr = MLL_SELF; }
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| bgp_proto MISSING LLADDR DROP ';' { BGP_CFG->missing_lladdr = MLL_DROP; }
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| bgp_proto MISSING LLADDR IGNORE ';' { BGP_CFG->missing_lladdr = MLL_IGNORE; }
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| bgp_proto PATH METRIC bool ';' { BGP_CFG->compare_path_lengths = $4; }
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| bgp_proto PREFER OLDER bool ';' { BGP_CFG->prefer_older = $4; }
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| bgp_proto DEFAULT BGP_MED expr ';' { BGP_CFG->default_med = $4; }
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| bgp_proto DEFAULT BGP_LOCAL_PREF expr ';' { BGP_CFG->default_local_pref = $4; }
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| bgp_proto SOURCE ADDRESS ipa ';' { BGP_CFG->source_addr = $4; }
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| bgp_proto START DELAY TIME expr ';' { BGP_CFG->start_delay_time = $5; }
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| bgp_proto ERROR FORGET TIME expr ';' { BGP_CFG->error_amnesia_time = $5; }
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| bgp_proto ERROR WAIT TIME expr ',' expr ';' { BGP_CFG->error_delay_time_min = $5; BGP_CFG->error_delay_time_max = $7; }
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| bgp_proto DISABLE AFTER ERROR bool ';' { BGP_CFG->disable_after_error = $5; }
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| bgp_proto ENABLE ROUTE REFRESH bool ';' { BGP_CFG->enable_refresh = $5; }
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| bgp_proto ENABLE AS4 bool ';' { BGP_CFG->enable_as4 = $4; }
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| bgp_proto CAPABILITIES bool ';' { BGP_CFG->capabilities = $3; }
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| bgp_proto ADVERTISE IPV4 bool ';' { BGP_CFG->advertise_ipv4 = $4; }
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| bgp_proto PASSWORD TEXT ';' { BGP_CFG->password = $3; }
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| bgp_proto ROUTE LIMIT expr ';' { BGP_CFG->route_limit = $4; }
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| bgp_proto PASSIVE bool ';' { BGP_CFG->passive = $3; }
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| bgp_proto IGNORE COMMUNITIES bool ';' { BGP_CFG->ignore_communities = $4; }
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;
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CF_ADDTO(dynamic_attr, BGP_PATH
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{ $$ = f_new_dynamic_attr(EAF_TYPE_AS_PATH, T_PATH, EA_CODE(EAP_BGP, BA_AS_PATH)); })
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CF_ADDTO(dynamic_attr, BGP_LOCAL_PREF
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{ $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(EAP_BGP, BA_LOCAL_PREF)); })
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CF_ADDTO(dynamic_attr, BGP_MED
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{ $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(EAP_BGP, BA_MULTI_EXIT_DISC)); })
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CF_ADDTO(dynamic_attr, BGP_ORIGIN
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{ $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_ENUM_BGP_ORIGIN, EA_CODE(EAP_BGP, BA_ORIGIN)); })
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CF_ADDTO(dynamic_attr, BGP_NEXT_HOP
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{ $$ = f_new_dynamic_attr(EAF_TYPE_IP_ADDRESS, T_IP, EA_CODE(EAP_BGP, BA_NEXT_HOP)); })
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CF_ADDTO(dynamic_attr, BGP_ATOMIC_AGGR
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{ $$ = f_new_dynamic_attr(EAF_TYPE_OPAQUE, T_ENUM_EMPTY, EA_CODE(EAP_BGP, BA_ATOMIC_AGGR)); })
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CF_ADDTO(dynamic_attr, BGP_AGGREGATOR
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{ $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(EAP_BGP, BA_AGGREGATOR)); })
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CF_ADDTO(dynamic_attr, BGP_COMMUNITY
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{ $$ = f_new_dynamic_attr(EAF_TYPE_INT_SET, T_CLIST, EA_CODE(EAP_BGP, BA_COMMUNITY)); })
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CF_ENUM(T_ENUM_BGP_ORIGIN, ORIGIN_, IGP, EGP, INCOMPLETE)
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CF_CODE
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CF_END
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