mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-11-14 07:08:42 +00:00
20529f5bd1
Some of these new BGP role keywords use generic names that collides with user-defined symbols. Allow them to be redefined. Also remove duplicit keyword definition for 'prefer'.
374 lines
15 KiB
Plaintext
374 lines
15 KiB
Plaintext
/*
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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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#define BGP_CC ((struct bgp_channel_config *) this_channel)
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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, ERROR,
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START, DELAY, FORGET, WAIT, ENABLE, DISABLE, AFTER, BGP_PATH,
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BGP_LOCAL_PREF, BGP_MED, BGP_ORIGIN, BGP_NEXT_HOP, BGP_ATOMIC_AGGR,
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BGP_AGGREGATOR, BGP_COMMUNITY, BGP_EXT_COMMUNITY, BGP_LARGE_COMMUNITY,
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SOURCE, ADDRESS, PASSWORD, RR, RS, CLIENT, CLUSTER, ID, AS4, ADVERTISE,
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IPV4, CAPABILITIES, LIMIT, PASSIVE, PREFER, OLDER, MISSING, LLADDR,
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DROP, IGNORE, ROUTE, REFRESH, INTERPRET, COMMUNITIES, BGP_ORIGINATOR_ID,
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BGP_CLUSTER_LIST, IGP, TABLE, GATEWAY, DIRECT, RECURSIVE, MED, TTL,
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SECURITY, DETERMINISTIC, SECONDARY, ALLOW, BFD, ADD, PATHS, RX, TX,
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GRACEFUL, RESTART, AWARE, CHECK, LINK, PORT, EXTENDED, MESSAGES, SETKEY,
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STRICT, BIND, CONFEDERATION, MEMBER, MULTICAST, FLOW4, FLOW6, LONG,
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LIVED, STALE, IMPORT, IBGP, EBGP, MANDATORY, INTERNAL, EXTERNAL, SETS,
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DYNAMIC, RANGE, NAME, DIGITS, BGP_AIGP, AIGP, ORIGINATE, COST, ENFORCE,
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FIRST, FREE, VALIDATE, BASE, ROLE, ROLES, PEER, PROVIDER, CUSTOMER,
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RS_SERVER, RS_CLIENT, REQUIRE, BGP_OTC, GLOBAL)
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%type <i> bgp_nh
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%type <i32> bgp_afi
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CF_KEYWORDS(CEASE, PREFIX, LIMIT, HIT, ADMINISTRATIVE, SHUTDOWN, RESET, PEER,
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CONFIGURATION, CHANGE, DECONFIGURED, CONNECTION, REJECTED, COLLISION,
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OUT, OF, RESOURCES)
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%type<i> bgp_cease_mask bgp_cease_list bgp_cease_flag bgp_role_name
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CF_GRAMMAR
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/* Workaround for collisions between keywords and symbols */
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symbol: ROLE | PEER | PROVIDER | CUSTOMER | RS_SERVER | RS_CLIENT ;
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proto: bgp_proto '}' ;
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bgp_proto_start: proto_start BGP {
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this_proto = proto_config_new(&proto_bgp, $1);
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BGP_CFG->local_port = BGP_PORT;
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BGP_CFG->remote_port = BGP_PORT;
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BGP_CFG->multihop = -1; /* undefined */
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BGP_CFG->hold_time = 240;
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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->igp_metric = 1;
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BGP_CFG->connect_delay_time = 5;
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BGP_CFG->connect_retry_time = 120;
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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->enable_hostname = 0;
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BGP_CFG->capabilities = 2;
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BGP_CFG->interpret_communities = 1;
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BGP_CFG->allow_as_sets = 1;
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BGP_CFG->default_local_pref = 100;
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BGP_CFG->gr_mode = BGP_GR_AWARE;
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BGP_CFG->gr_time = 120;
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BGP_CFG->llgr_mode = -1;
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BGP_CFG->llgr_time = 3600;
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BGP_CFG->setkey = 1;
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BGP_CFG->local_role = BGP_ROLE_UNDEFINED;
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BGP_CFG->dynamic_name = "dynbgp";
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BGP_CFG->check_link = -1;
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}
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;
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bgp_loc_opts:
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/* empty */
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| bgp_loc_opts PORT expr { BGP_CFG->local_port = $3; if (($3<1) || ($3>65535)) cf_error("Invalid port number"); }
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| bgp_loc_opts AS expr { BGP_CFG->local_as = $3; }
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;
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bgp_nbr_opts:
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/* empty */
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| bgp_nbr_opts PORT expr { BGP_CFG->remote_port = $3; if (($3<1) || ($3>65535)) cf_error("Invalid port number"); }
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| bgp_nbr_opts AS expr { BGP_CFG->remote_as = $3; }
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| bgp_nbr_opts INTERNAL { BGP_CFG->peer_type = BGP_PT_INTERNAL; }
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| bgp_nbr_opts EXTERNAL { BGP_CFG->peer_type = BGP_PT_EXTERNAL; }
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;
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bgp_cease_mask:
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/* true -> all except connection collision */
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bool { $$ = $1 ? ~(1 << 7) : 0; }
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| '{' bgp_cease_list '}' { $$ = $2; }
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;
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bgp_cease_list:
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bgp_cease_flag
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| bgp_cease_list ',' bgp_cease_flag { $$ = $1 | $3; }
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;
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bgp_cease_flag:
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CEASE { $$ = 1 << 0; }
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| PREFIX LIMIT HIT { $$ = 1 << 1; }
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| ADMINISTRATIVE SHUTDOWN { $$ = 1 << 2; }
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| PEER DECONFIGURED { $$ = 1 << 3; }
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| ADMINISTRATIVE RESET { $$ = 1 << 4; }
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| CONNECTION REJECTED { $$ = 1 << 5; }
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| CONFIGURATION CHANGE { $$ = 1 << 6; }
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| CONNECTION COLLISION { $$ = 1 << 7; }
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| OUT OF RESOURCES { $$ = 1 << 8; }
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;
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bgp_role_name:
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PEER { $$ = BGP_ROLE_PEER; }
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| PROVIDER { $$ = BGP_ROLE_PROVIDER; }
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| CUSTOMER { $$ = BGP_ROLE_CUSTOMER; }
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| RS_SERVER { $$ = BGP_ROLE_RS_SERVER; }
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| RS_CLIENT { $$ = BGP_ROLE_RS_CLIENT; }
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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 bgp_proto_channel ';'
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| bgp_proto LOCAL bgp_loc_opts ';'
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| bgp_proto LOCAL ipa ipa_scope bgp_loc_opts ';' {
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BGP_CFG->local_ip = $3;
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if ($4) BGP_CFG->iface = $4;
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}
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| bgp_proto NEIGHBOR bgp_nbr_opts ';'
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| bgp_proto NEIGHBOR ipa ipa_scope bgp_nbr_opts ';' {
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if (ipa_nonzero(BGP_CFG->remote_ip) || BGP_CFG->remote_range)
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cf_error("Only one neighbor per BGP instance is allowed");
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BGP_CFG->remote_ip = $3;
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if ($4) BGP_CFG->iface = $4;
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}
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| bgp_proto NEIGHBOR RANGE net_ip bgp_nbr_opts ';' {
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if (ipa_nonzero(BGP_CFG->remote_ip) || BGP_CFG->remote_range)
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cf_error("Only one neighbor per BGP instance is allowed");
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net_addr *n = cfg_alloc($4.length);
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net_copy(n, &($4));
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BGP_CFG->remote_range = n;
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}
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| bgp_proto INTERFACE TEXT ';' { BGP_CFG->iface = if_get_by_name($3); }
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| bgp_proto RR CLUSTER ID idval ';' { BGP_CFG->rr_cluster_id = $5; }
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| bgp_proto RR CLIENT bool ';' { BGP_CFG->rr_client = $4; }
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| bgp_proto RS CLIENT bool ';' { BGP_CFG->rs_client = $4; }
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| bgp_proto CONFEDERATION expr ';' { BGP_CFG->confederation = $3; }
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| bgp_proto CONFEDERATION MEMBER bool ';' { BGP_CFG->confederation_member = $4; }
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| bgp_proto HOLD TIME expr ';' { BGP_CFG->hold_time = $4; if (($4 && $4<3) || ($4>65535)) cf_error("Hold time must be in range 3-65535 or zero"); }
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| bgp_proto MIN HOLD TIME expr ';' { BGP_CFG->min_hold_time = $5; }
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| bgp_proto STARTUP HOLD TIME expr ';' { BGP_CFG->initial_hold_time = $5; }
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| bgp_proto DIRECT ';' { BGP_CFG->multihop = 0; }
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| bgp_proto MULTIHOP ';' { BGP_CFG->multihop = 64; }
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| bgp_proto MULTIHOP expr ';' { BGP_CFG->multihop = $3; if (($3<1) || ($3>255)) cf_error("Multihop must be in range 1-255"); }
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| bgp_proto DYNAMIC NAME text ';' {
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if (strchr($4, '%')) cf_error("Forbidden character '%%' in dynamic name");
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if (strlen($4) > (SYM_MAX_LEN - 16)) cf_error("Dynamic name too long");
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BGP_CFG->dynamic_name = $4;
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}
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| bgp_proto DYNAMIC NAME DIGITS expr ';' { BGP_CFG->dynamic_name_digits = $5; if ($5>10) cf_error("Dynamic name digits must be at most 10"); }
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| bgp_proto STRICT BIND bool ';' { BGP_CFG->strict_bind = $4; }
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| bgp_proto FREE BIND bool ';' { BGP_CFG->free_bind = $4; }
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| bgp_proto PATH METRIC bool ';' { BGP_CFG->compare_path_lengths = $4; }
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| bgp_proto MED METRIC bool ';' { BGP_CFG->med_metric = $4; }
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| bgp_proto IGP METRIC bool ';' { BGP_CFG->igp_metric = $4; }
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| bgp_proto PREFER OLDER bool ';' { BGP_CFG->prefer_older = $4; }
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| bgp_proto DETERMINISTIC MED bool ';' { BGP_CFG->deterministic_med = $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->local_ip = $4; }
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| bgp_proto START DELAY TIME expr ';' { BGP_CFG->connect_delay_time = $5; log(L_WARN "%s: Start delay time option is deprecated, use connect delay time", this_proto->name); }
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| bgp_proto CONNECT DELAY TIME expr ';' { BGP_CFG->connect_delay_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; if (($4<1) || ($4>65535)) cf_error("Keepalive time must be in range 1-65535"); }
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| bgp_proto MIN KEEPALIVE TIME expr ';' { BGP_CFG->min_keepalive_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 DISABLE AFTER CEASE bgp_cease_mask ';' { BGP_CFG->disable_after_cease = $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 ENABLE EXTENDED MESSAGES bool ';' { BGP_CFG->enable_extended_messages = $5; }
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| bgp_proto ADVERTISE HOSTNAME bool ';' { BGP_CFG->enable_hostname = $4; }
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| bgp_proto CAPABILITIES bool ';' { BGP_CFG->capabilities = $3; }
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| bgp_proto PASSWORD text ';' { BGP_CFG->password = $3; }
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| bgp_proto SETKEY bool ';' { BGP_CFG->setkey = $3; }
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| bgp_proto PASSIVE bool ';' { BGP_CFG->passive = $3; }
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| bgp_proto INTERPRET COMMUNITIES bool ';' { BGP_CFG->interpret_communities = $4; }
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| bgp_proto ALLOW LOCAL AS ';' { BGP_CFG->allow_local_as = -1; }
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| bgp_proto ALLOW LOCAL AS expr ';' { BGP_CFG->allow_local_as = $5; }
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| bgp_proto ALLOW BGP_LOCAL_PREF bool ';' { BGP_CFG->allow_local_pref = $4; }
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| bgp_proto ALLOW AS SETS bool ';' { BGP_CFG->allow_as_sets = $5; }
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| bgp_proto GRACEFUL RESTART bool ';' { BGP_CFG->gr_mode = $4; }
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| bgp_proto GRACEFUL RESTART AWARE ';' { BGP_CFG->gr_mode = BGP_GR_AWARE; }
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| bgp_proto GRACEFUL RESTART TIME expr ';' { BGP_CFG->gr_time = $5; }
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| bgp_proto LONG LIVED GRACEFUL RESTART bool ';' { BGP_CFG->llgr_mode = $6; }
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| bgp_proto LONG LIVED GRACEFUL RESTART AWARE ';' { BGP_CFG->llgr_mode = BGP_LLGR_AWARE; }
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| bgp_proto LONG LIVED STALE TIME expr ';' { BGP_CFG->llgr_time = $6; }
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| bgp_proto TTL SECURITY bool ';' { BGP_CFG->ttl_security = $4; }
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| bgp_proto CHECK LINK bool ';' { BGP_CFG->check_link = $4; }
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| bgp_proto BFD bool ';' { if ($3) init_bfd_opts(&BGP_CFG->bfd); else BGP_CFG->bfd = NULL; }
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| bgp_proto BFD GRACEFUL ';' { init_bfd_opts(&BGP_CFG->bfd); BGP_CFG->bfd->mode = BGP_BFD_GRACEFUL; }
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| bgp_proto BFD { open_bfd_opts(&BGP_CFG->bfd); } bfd_opts { close_bfd_opts(); } ';'
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| bgp_proto ENFORCE FIRST AS bool ';' { BGP_CFG->enforce_first_as = $5; }
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| bgp_proto LOCAL ROLE bgp_role_name ';' { BGP_CFG->local_role = $4; }
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| bgp_proto REQUIRE ROLES bool ';' { BGP_CFG->require_roles = $4; }
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;
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bgp_afi:
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IPV4 { $$ = BGP_AF_IPV4; }
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| IPV6 { $$ = BGP_AF_IPV6; }
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| IPV4 MULTICAST { $$ = BGP_AF_IPV4_MC; }
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| IPV6 MULTICAST { $$ = BGP_AF_IPV6_MC; }
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| IPV4 MPLS { $$ = BGP_AF_IPV4_MPLS; }
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| IPV6 MPLS { $$ = BGP_AF_IPV6_MPLS; }
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| VPN4 MPLS { $$ = BGP_AF_VPN4_MPLS; }
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| VPN6 MPLS { $$ = BGP_AF_VPN6_MPLS; }
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| VPN4 MULTICAST { $$ = BGP_AF_VPN4_MC; }
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| VPN6 MULTICAST { $$ = BGP_AF_VPN6_MC; }
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| FLOW4 { $$ = BGP_AF_FLOW4; }
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| FLOW6 { $$ = BGP_AF_FLOW6; }
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;
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bgp_channel_start: bgp_afi
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{
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const struct bgp_af_desc *desc = bgp_get_af_desc($1);
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if (!desc)
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cf_error("Unknown AFI/SAFI");
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this_channel = channel_config_get(&channel_bgp, desc->name, desc->net, this_proto);
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/* New channel */
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if (!BGP_CC->desc)
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{
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BGP_CC->c.in_filter = FILTER_UNDEF;
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BGP_CC->c.out_filter = FILTER_UNDEF;
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BGP_CC->c.ra_mode = RA_UNDEF;
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BGP_CC->afi = $1;
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BGP_CC->desc = desc;
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BGP_CC->next_hop_keep = 0xff; /* undefined */
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BGP_CC->gr_able = 0xff; /* undefined */
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BGP_CC->llgr_able = 0xff; /* undefined */
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BGP_CC->llgr_time = ~0U; /* undefined */
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BGP_CC->aigp = 0xff; /* undefined */
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}
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};
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bgp_nh:
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bool { $$ = $1; }
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| IBGP { $$ = NH_IBGP; }
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| EBGP { $$ = NH_EBGP; }
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bgp_lladdr: SELF | DROP | IGNORE;
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bgp_channel_item:
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channel_item
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| NEXT HOP ADDRESS ipa { BGP_CC->next_hop_addr = $4; }
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| NEXT HOP SELF bgp_nh { BGP_CC->next_hop_self = $4; }
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| NEXT HOP KEEP bgp_nh { BGP_CC->next_hop_keep = $4; }
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| NEXT HOP PREFER GLOBAL { BGP_CC->next_hop_prefer = NHP_GLOBAL; }
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| MANDATORY bool { BGP_CC->mandatory = $2; }
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| MISSING LLADDR bgp_lladdr { log(L_WARN "%s.%s: Missing lladdr option is deprecated and ignored, remove it", this_proto->name, this_channel->name); }
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| GATEWAY DIRECT { BGP_CC->gw_mode = GW_DIRECT; }
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| GATEWAY RECURSIVE { BGP_CC->gw_mode = GW_RECURSIVE; }
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| SECONDARY bool { BGP_CC->secondary = $2; }
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| VALIDATE bool {
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BGP_CC->validate = $2;
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if (BGP_SAFI(BGP_CC->afi) != BGP_SAFI_FLOW)
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cf_error("Validate option limited to flowspec channels");
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}
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| GRACEFUL RESTART bool { BGP_CC->gr_able = $3; }
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| LONG LIVED GRACEFUL RESTART bool { BGP_CC->llgr_able = $5; }
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| LONG LIVED STALE TIME expr { BGP_CC->llgr_time = $5; }
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| EXTENDED NEXT HOP bool { BGP_CC->ext_next_hop = $4; }
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| ADD PATHS RX { BGP_CC->add_path = BGP_ADD_PATH_RX; }
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| ADD PATHS TX { BGP_CC->add_path = BGP_ADD_PATH_TX; }
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| ADD PATHS bool { BGP_CC->add_path = $3 ? BGP_ADD_PATH_FULL : 0; }
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| IMPORT TABLE bool { BGP_CC->import_table = $3; }
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| EXPORT TABLE bool { BGP_CC->export_table = $3; }
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| AIGP bool { BGP_CC->aigp = $2; BGP_CC->aigp_originate = 0; }
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| AIGP ORIGINATE { BGP_CC->aigp = 1; BGP_CC->aigp_originate = 1; }
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| COST expr { BGP_CC->cost = $2; if ($2 < 1) cf_error("Cost must be positive"); }
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| IGP TABLE rtable {
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if (BGP_CC->desc->no_igp)
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cf_error("IGP table not allowed here");
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if ($3->addr_type == NET_IP4)
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BGP_CC->igp_table_ip4 = $3;
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else if ($3->addr_type == NET_IP6)
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BGP_CC->igp_table_ip6 = $3;
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else
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cf_error("Mismatched IGP table type");
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}
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| BASE TABLE rtable {
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if (BGP_SAFI(BGP_CC->afi) != BGP_SAFI_FLOW)
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cf_error("Base table option limited to flowspec channels");
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if (((BGP_CC->afi == BGP_AF_FLOW4) && ($3->addr_type == NET_IP4)) ||
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((BGP_CC->afi == BGP_AF_FLOW6) && ($3->addr_type == NET_IP6)))
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BGP_CC->base_table = $3;
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else
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cf_error("Mismatched base table type");
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}
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;
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bgp_channel_opts:
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/* empty */
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| bgp_channel_opts bgp_channel_item ';'
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;
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bgp_channel_opt_list:
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/* empty */
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| '{' bgp_channel_opts '}'
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;
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|
bgp_channel_end:
|
|
{
|
|
if (!this_channel->table)
|
|
cf_error("Routing table not specified");
|
|
|
|
this_channel = NULL;
|
|
};
|
|
|
|
bgp_proto_channel: bgp_channel_start bgp_channel_opt_list bgp_channel_end;
|
|
|
|
|
|
dynamic_attr: BGP_ORIGIN
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_ENUM_BGP_ORIGIN, EA_CODE(PROTOCOL_BGP, BA_ORIGIN)); } ;
|
|
dynamic_attr: BGP_PATH
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_AS_PATH, T_PATH, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); } ;
|
|
dynamic_attr: BGP_NEXT_HOP
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_IP_ADDRESS, T_IP, EA_CODE(PROTOCOL_BGP, BA_NEXT_HOP)); } ;
|
|
dynamic_attr: BGP_MED
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(PROTOCOL_BGP, BA_MULTI_EXIT_DISC)); } ;
|
|
dynamic_attr: BGP_LOCAL_PREF
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF)); } ;
|
|
dynamic_attr: BGP_ATOMIC_AGGR
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_OPAQUE, T_ENUM_EMPTY, EA_CODE(PROTOCOL_BGP, BA_ATOMIC_AGGR)); } ;
|
|
dynamic_attr: BGP_AGGREGATOR
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_OPAQUE, T_ENUM_EMPTY, EA_CODE(PROTOCOL_BGP, BA_AGGREGATOR)); } ;
|
|
dynamic_attr: BGP_COMMUNITY
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_INT_SET, T_CLIST, EA_CODE(PROTOCOL_BGP, BA_COMMUNITY)); } ;
|
|
dynamic_attr: BGP_ORIGINATOR_ID
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_ROUTER_ID, T_QUAD, EA_CODE(PROTOCOL_BGP, BA_ORIGINATOR_ID)); } ;
|
|
dynamic_attr: BGP_CLUSTER_LIST
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_INT_SET, T_CLIST, EA_CODE(PROTOCOL_BGP, BA_CLUSTER_LIST)); } ;
|
|
dynamic_attr: BGP_EXT_COMMUNITY
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_EC_SET, T_ECLIST, EA_CODE(PROTOCOL_BGP, BA_EXT_COMMUNITY)); } ;
|
|
dynamic_attr: BGP_AIGP
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_OPAQUE, T_ENUM_EMPTY, EA_CODE(PROTOCOL_BGP, BA_AIGP)); } ;
|
|
dynamic_attr: BGP_LARGE_COMMUNITY
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_LC_SET, T_LCLIST, EA_CODE(PROTOCOL_BGP, BA_LARGE_COMMUNITY)); } ;
|
|
dynamic_attr: BGP_OTC
|
|
{ $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(PROTOCOL_BGP, BA_ONLY_TO_CUSTOMER)); } ;
|
|
|
|
|
|
|
|
CF_ENUM(T_ENUM_BGP_ORIGIN, ORIGIN_, IGP, EGP, INCOMPLETE)
|
|
|
|
CF_CODE
|
|
|
|
CF_END
|