proto/bgp/config.Y

   1 /*
   2  *      BIRD -- Border Gateway Protocol Configuration
   3  *
   4  *      (c) 2000 Martin Mares <mj@ucw.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 CF_HDR
  10
  11 #include "proto/bgp/bgp.h"
  12
  13 CF_DEFINES
  14
  15 #define BGP_CFG ((struct bgp_config *) this_proto)
  16
  17 CF_DECLS
  18
  19 CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY,
  20         KEEPALIVE, MULTIHOP, STARTUP, VIA, NEXT, HOP, SELF, DEFAULT,
  21         PATH, METRIC, ERROR, START, DELAY, FORGET, WAIT, ENABLE,
  22         DISABLE, AFTER, BGP_PATH, BGP_LOCAL_PREF, BGP_MED, BGP_ORIGIN,
  23         BGP_NEXT_HOP, BGP_ATOMIC_AGGR, BGP_AGGREGATOR, BGP_COMMUNITY,
  24         BGP_EXT_COMMUNITY, SOURCE, ADDRESS, PASSWORD, RR, RS, CLIENT,
  25         CLUSTER, ID, AS4, ADVERTISE, IPV4, CAPABILITIES, LIMIT, PASSIVE,
  26         PREFER, OLDER, MISSING, LLADDR, DROP, IGNORE, ROUTE, REFRESH,
  27         INTERPRET, COMMUNITIES, BGP_ORIGINATOR_ID, BGP_CLUSTER_LIST, IGP,
  28         TABLE, GATEWAY, DIRECT, RECURSIVE, MED, TTL, SECURITY, DETERMINISTIC)
  29
  30 CF_GRAMMAR
  31
  32 CF_ADDTO(proto, bgp_proto '}' { bgp_check_config(BGP_CFG); } )
  33
  34 bgp_proto_start: proto_start BGP {
  35      this_proto = proto_config_new(&proto_bgp, sizeof(struct bgp_config), $1);
  36      BGP_CFG->hold_time = 240;
  37      BGP_CFG->connect_retry_time = 120;
  38      BGP_CFG->initial_hold_time = 240;
  39      BGP_CFG->compare_path_lengths = 1;
  40      BGP_CFG->igp_metric = 1;
  41      BGP_CFG->start_delay_time = 5;
  42      BGP_CFG->error_amnesia_time = 300;
  43      BGP_CFG->error_delay_time_min = 60;
  44      BGP_CFG->error_delay_time_max = 300;
  45      BGP_CFG->enable_refresh = 1;
  46      BGP_CFG->enable_as4 = 1;
  47      BGP_CFG->capabilities = 2;
  48      BGP_CFG->advertise_ipv4 = 1;
  49      BGP_CFG->interpret_communities = 1;
  50      BGP_CFG->default_local_pref = 100;
  51  }
  52  ;
  53
  54 bgp_proto:
  55    bgp_proto_start proto_name '{'
  56  | bgp_proto proto_item ';'
  57  | bgp_proto LOCAL AS expr ';' { BGP_CFG->local_as = $4; }
  58  | bgp_proto LOCAL ipa AS expr ';' { BGP_CFG->source_addr = $3; BGP_CFG->local_as = $5; }
  59  | bgp_proto NEIGHBOR ipa ipa_scope AS expr ';' {
  60      if (ipa_nonzero(BGP_CFG->remote_ip))
  61        cf_error("Only one neighbor per BGP instance is allowed");
  62      if (!ipa_has_link_scope($3) != !$4)
  63        cf_error("Link-local address and interface scope must be used together");
  64
  65      BGP_CFG->remote_ip = $3;
  66      BGP_CFG->iface = $4;
  67      BGP_CFG->remote_as = $6;
  68    }
  69  | bgp_proto RR CLUSTER ID idval ';' { BGP_CFG->rr_cluster_id = $5; }
  70  | bgp_proto RR CLIENT ';' { BGP_CFG->rr_client = 1; }
  71  | bgp_proto RS CLIENT ';' { BGP_CFG->rs_client = 1; }
  72  | bgp_proto HOLD TIME expr ';' { BGP_CFG->hold_time = $4; }
  73  | bgp_proto STARTUP HOLD TIME expr ';' { BGP_CFG->initial_hold_time = $5; }
  74  | bgp_proto CONNECT RETRY TIME expr ';' { BGP_CFG->connect_retry_time = $5; }
  75  | bgp_proto KEEPALIVE TIME expr ';' { BGP_CFG->keepalive_time = $4; }
  76  | bgp_proto MULTIHOP ';' { BGP_CFG->multihop = 64; }
  77  | bgp_proto MULTIHOP expr ';' { BGP_CFG->multihop = $3; if (($3<1) || ($3>255)) cf_error("Multihop must be in range 1-255"); }
  78  | bgp_proto NEXT HOP SELF ';' { BGP_CFG->next_hop_self = 1; }
  79  | bgp_proto MISSING LLADDR SELF ';' { BGP_CFG->missing_lladdr = MLL_SELF; }
  80  | bgp_proto MISSING LLADDR DROP ';' { BGP_CFG->missing_lladdr = MLL_DROP; }
  81  | bgp_proto MISSING LLADDR IGNORE ';' { BGP_CFG->missing_lladdr = MLL_IGNORE; }
  82  | bgp_proto GATEWAY DIRECT ';' { BGP_CFG->gw_mode = GW_DIRECT; }
  83  | bgp_proto GATEWAY RECURSIVE ';' { BGP_CFG->gw_mode = GW_RECURSIVE; }
  84  | bgp_proto PATH METRIC bool ';' { BGP_CFG->compare_path_lengths = $4; }
  85  | bgp_proto MED METRIC bool ';' { BGP_CFG->med_metric = $4; }
  86  | bgp_proto IGP METRIC bool ';' { BGP_CFG->igp_metric = $4; }
  87  | bgp_proto PREFER OLDER bool ';' { BGP_CFG->prefer_older = $4; }
  88  | bgp_proto DETERMINISTIC MED bool ';' { BGP_CFG->deterministic_med = $4; }
  89  | bgp_proto DEFAULT BGP_MED expr ';' { BGP_CFG->default_med = $4; }
  90  | bgp_proto DEFAULT BGP_LOCAL_PREF expr ';' { BGP_CFG->default_local_pref = $4; }
  91  | bgp_proto SOURCE ADDRESS ipa ';' { BGP_CFG->source_addr = $4; }
  92  | bgp_proto START DELAY TIME expr ';' { BGP_CFG->start_delay_time = $5; }
  93  | bgp_proto ERROR FORGET TIME expr ';' { BGP_CFG->error_amnesia_time = $5; }
  94  | bgp_proto ERROR WAIT TIME expr ',' expr ';' { BGP_CFG->error_delay_time_min = $5; BGP_CFG->error_delay_time_max = $7; }
  95  | bgp_proto DISABLE AFTER ERROR bool ';' { BGP_CFG->disable_after_error = $5; }
  96  | bgp_proto ENABLE ROUTE REFRESH bool ';' { BGP_CFG->enable_refresh = $5; }
  97  | bgp_proto ENABLE AS4 bool ';' { BGP_CFG->enable_as4 = $4; }
  98  | bgp_proto CAPABILITIES bool ';' { BGP_CFG->capabilities = $3; }
  99  | bgp_proto ADVERTISE IPV4 bool ';' { BGP_CFG->advertise_ipv4 = $4; }
 100  | bgp_proto PASSWORD TEXT ';' { BGP_CFG->password = $3; }
 101  | bgp_proto ROUTE LIMIT expr ';' { BGP_CFG->route_limit = $4; }
 102  | bgp_proto PASSIVE bool ';' { BGP_CFG->passive = $3; }
 103  | bgp_proto INTERPRET COMMUNITIES bool ';' { BGP_CFG->interpret_communities = $4; }
 104  | bgp_proto IGP TABLE rtable ';' { BGP_CFG->igp_table = $4; }
 105  | bgp_proto TTL SECURITY bool ';' { BGP_CFG->ttl_security = $4; }
 106  ;
 107
 108 CF_ADDTO(dynamic_attr, BGP_ORIGIN
 109         { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_ENUM_BGP_ORIGIN, EA_CODE(EAP_BGP, BA_ORIGIN)); })
 110 CF_ADDTO(dynamic_attr, BGP_PATH
 111         { $$ = f_new_dynamic_attr(EAF_TYPE_AS_PATH, T_PATH, EA_CODE(EAP_BGP, BA_AS_PATH)); })
 112 CF_ADDTO(dynamic_attr, BGP_NEXT_HOP
 113         { $$ = f_new_dynamic_attr(EAF_TYPE_IP_ADDRESS, T_IP, EA_CODE(EAP_BGP, BA_NEXT_HOP)); })
 114 CF_ADDTO(dynamic_attr, BGP_MED
 115         { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(EAP_BGP, BA_MULTI_EXIT_DISC)); })
 116 CF_ADDTO(dynamic_attr, BGP_LOCAL_PREF
 117         { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(EAP_BGP, BA_LOCAL_PREF)); })
 118 CF_ADDTO(dynamic_attr, BGP_ATOMIC_AGGR
 119         { $$ = f_new_dynamic_attr(EAF_TYPE_OPAQUE, T_ENUM_EMPTY, EA_CODE(EAP_BGP, BA_ATOMIC_AGGR)); })
 120 CF_ADDTO(dynamic_attr, BGP_AGGREGATOR
 121         { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(EAP_BGP, BA_AGGREGATOR)); })
 122 CF_ADDTO(dynamic_attr, BGP_COMMUNITY
 123         { $$ = f_new_dynamic_attr(EAF_TYPE_INT_SET, T_CLIST, EA_CODE(EAP_BGP, BA_COMMUNITY)); })
 124 CF_ADDTO(dynamic_attr, BGP_ORIGINATOR_ID
 125         { $$ = f_new_dynamic_attr(EAF_TYPE_ROUTER_ID, T_QUAD, EA_CODE(EAP_BGP, BA_ORIGINATOR_ID)); })
 126 CF_ADDTO(dynamic_attr, BGP_CLUSTER_LIST
 127         { $$ = f_new_dynamic_attr(EAF_TYPE_INT_SET, T_CLIST, EA_CODE(EAP_BGP, BA_CLUSTER_LIST)); })
 128 CF_ADDTO(dynamic_attr, BGP_EXT_COMMUNITY
 129         { $$ = f_new_dynamic_attr(EAF_TYPE_EC_SET, T_ECLIST, EA_CODE(EAP_BGP, BA_EXT_COMMUNITY)); })
 130
 131
 132
 133 CF_ENUM(T_ENUM_BGP_ORIGIN, ORIGIN_, IGP, EGP, INCOMPLETE)
 134
 135 CF_CODE
 136
 137 CF_END