Annotation of embedaddon/bird2/proto/bgp/config.Y, revision 1.1
1.1 ! misho 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: #define BGP_CC ((struct bgp_channel_config *) this_channel)
! 17:
! 18: CF_DECLS
! 19:
! 20: CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY, KEEPALIVE,
! 21: MULTIHOP, STARTUP, VIA, NEXT, HOP, SELF, DEFAULT, PATH, METRIC, ERROR,
! 22: START, DELAY, FORGET, WAIT, ENABLE, DISABLE, AFTER, BGP_PATH,
! 23: BGP_LOCAL_PREF, BGP_MED, BGP_ORIGIN, BGP_NEXT_HOP, BGP_ATOMIC_AGGR,
! 24: BGP_AGGREGATOR, BGP_COMMUNITY, BGP_EXT_COMMUNITY, BGP_LARGE_COMMUNITY,
! 25: SOURCE, ADDRESS, PASSWORD, RR, RS, CLIENT, CLUSTER, ID, AS4, ADVERTISE,
! 26: IPV4, CAPABILITIES, LIMIT, PASSIVE, PREFER, OLDER, MISSING, LLADDR,
! 27: DROP, IGNORE, ROUTE, REFRESH, INTERPRET, COMMUNITIES, BGP_ORIGINATOR_ID,
! 28: BGP_CLUSTER_LIST, IGP, TABLE, GATEWAY, DIRECT, RECURSIVE, MED, TTL,
! 29: SECURITY, DETERMINISTIC, SECONDARY, ALLOW, BFD, ADD, PATHS, RX, TX,
! 30: GRACEFUL, RESTART, AWARE, CHECK, LINK, PORT, EXTENDED, MESSAGES, SETKEY,
! 31: STRICT, BIND, CONFEDERATION, MEMBER, MULTICAST, FLOW4, FLOW6, LONG,
! 32: LIVED, STALE, IMPORT, IBGP, EBGP, MANDATORY, INTERNAL, EXTERNAL,
! 33: DYNAMIC, RANGE, NAME, DIGITS, BGP_AIGP, AIGP, ORIGINATE, COST)
! 34:
! 35: %type <i> bgp_nh
! 36: %type <i32> bgp_afi
! 37:
! 38: CF_KEYWORDS(CEASE, PREFIX, LIMIT, HIT, ADMINISTRATIVE, SHUTDOWN, RESET, PEER,
! 39: CONFIGURATION, CHANGE, DECONFIGURED, CONNECTION, REJECTED, COLLISION,
! 40: OUT, OF, RESOURCES)
! 41:
! 42: %type<i> bgp_cease_mask bgp_cease_list bgp_cease_flag
! 43:
! 44: CF_GRAMMAR
! 45:
! 46: proto: bgp_proto '}' ;
! 47:
! 48: bgp_proto_start: proto_start BGP {
! 49: this_proto = proto_config_new(&proto_bgp, $1);
! 50: BGP_CFG->local_port = BGP_PORT;
! 51: BGP_CFG->remote_port = BGP_PORT;
! 52: BGP_CFG->multihop = -1; /* undefined */
! 53: BGP_CFG->hold_time = 240;
! 54: BGP_CFG->initial_hold_time = 240;
! 55: BGP_CFG->compare_path_lengths = 1;
! 56: BGP_CFG->igp_metric = 1;
! 57: BGP_CFG->connect_delay_time = 5;
! 58: BGP_CFG->connect_retry_time = 120;
! 59: BGP_CFG->error_amnesia_time = 300;
! 60: BGP_CFG->error_delay_time_min = 60;
! 61: BGP_CFG->error_delay_time_max = 300;
! 62: BGP_CFG->enable_refresh = 1;
! 63: BGP_CFG->enable_as4 = 1;
! 64: BGP_CFG->capabilities = 2;
! 65: BGP_CFG->interpret_communities = 1;
! 66: BGP_CFG->default_local_pref = 100;
! 67: BGP_CFG->gr_mode = BGP_GR_AWARE;
! 68: BGP_CFG->gr_time = 120;
! 69: BGP_CFG->llgr_mode = -1;
! 70: BGP_CFG->llgr_time = 3600;
! 71: BGP_CFG->setkey = 1;
! 72: BGP_CFG->dynamic_name = "dynbgp";
! 73: BGP_CFG->check_link = -1;
! 74: }
! 75: ;
! 76:
! 77: bgp_loc_opts:
! 78: /* empty */
! 79: | bgp_loc_opts PORT expr { BGP_CFG->local_port = $3; if (($3<1) || ($3>65535)) cf_error("Invalid port number"); }
! 80: | bgp_loc_opts AS expr { BGP_CFG->local_as = $3; }
! 81: ;
! 82:
! 83: bgp_nbr_opts:
! 84: /* empty */
! 85: | bgp_nbr_opts PORT expr { BGP_CFG->remote_port = $3; if (($3<1) || ($3>65535)) cf_error("Invalid port number"); }
! 86: | bgp_nbr_opts AS expr { BGP_CFG->remote_as = $3; }
! 87: | bgp_nbr_opts INTERNAL { BGP_CFG->peer_type = BGP_PT_INTERNAL; }
! 88: | bgp_nbr_opts EXTERNAL { BGP_CFG->peer_type = BGP_PT_EXTERNAL; }
! 89: ;
! 90:
! 91: bgp_cease_mask:
! 92: /* true -> all except connection collision */
! 93: bool { $$ = $1 ? ~(1 << 7) : 0; }
! 94: | '{' bgp_cease_list '}' { $$ = $2; }
! 95: ;
! 96:
! 97: bgp_cease_list:
! 98: bgp_cease_flag
! 99: | bgp_cease_list ',' bgp_cease_flag { $$ = $1 | $3; }
! 100: ;
! 101:
! 102: bgp_cease_flag:
! 103: CEASE { $$ = 1 << 0; }
! 104: | PREFIX LIMIT HIT { $$ = 1 << 1; }
! 105: | ADMINISTRATIVE SHUTDOWN { $$ = 1 << 2; }
! 106: | PEER DECONFIGURED { $$ = 1 << 3; }
! 107: | ADMINISTRATIVE RESET { $$ = 1 << 4; }
! 108: | CONNECTION REJECTED { $$ = 1 << 5; }
! 109: | CONFIGURATION CHANGE { $$ = 1 << 6; }
! 110: | CONNECTION COLLISION { $$ = 1 << 7; }
! 111: | OUT OF RESOURCES { $$ = 1 << 8; }
! 112: ;
! 113:
! 114: bgp_proto:
! 115: bgp_proto_start proto_name '{'
! 116: | bgp_proto proto_item ';'
! 117: | bgp_proto bgp_proto_channel ';'
! 118: | bgp_proto LOCAL bgp_loc_opts ';'
! 119: | bgp_proto LOCAL ipa ipa_scope bgp_loc_opts ';' {
! 120: BGP_CFG->local_ip = $3;
! 121: if ($4) BGP_CFG->iface = $4;
! 122: }
! 123: | bgp_proto NEIGHBOR bgp_nbr_opts ';'
! 124: | bgp_proto NEIGHBOR ipa ipa_scope bgp_nbr_opts ';' {
! 125: if (ipa_nonzero(BGP_CFG->remote_ip) || BGP_CFG->remote_range)
! 126: cf_error("Only one neighbor per BGP instance is allowed");
! 127: BGP_CFG->remote_ip = $3;
! 128: if ($4) BGP_CFG->iface = $4;
! 129: }
! 130: | bgp_proto NEIGHBOR RANGE net_ip bgp_nbr_opts ';' {
! 131: if (ipa_nonzero(BGP_CFG->remote_ip) || BGP_CFG->remote_range)
! 132: cf_error("Only one neighbor per BGP instance is allowed");
! 133: net_addr *n = cfg_alloc($4.length);
! 134: net_copy(n, &($4));
! 135: BGP_CFG->remote_range = n;
! 136: }
! 137: | bgp_proto INTERFACE TEXT ';' { BGP_CFG->iface = if_get_by_name($3); }
! 138: | bgp_proto RR CLUSTER ID idval ';' { BGP_CFG->rr_cluster_id = $5; }
! 139: | bgp_proto RR CLIENT bool ';' { BGP_CFG->rr_client = $4; }
! 140: | bgp_proto RS CLIENT bool ';' { BGP_CFG->rs_client = $4; }
! 141: | bgp_proto CONFEDERATION expr ';' { BGP_CFG->confederation = $3; }
! 142: | bgp_proto CONFEDERATION MEMBER bool ';' { BGP_CFG->confederation_member = $4; }
! 143: | bgp_proto HOLD TIME expr ';' { BGP_CFG->hold_time = $4; }
! 144: | bgp_proto STARTUP HOLD TIME expr ';' { BGP_CFG->initial_hold_time = $5; }
! 145: | bgp_proto DIRECT ';' { BGP_CFG->multihop = 0; }
! 146: | bgp_proto MULTIHOP ';' { BGP_CFG->multihop = 64; }
! 147: | bgp_proto MULTIHOP expr ';' { BGP_CFG->multihop = $3; if (($3<1) || ($3>255)) cf_error("Multihop must be in range 1-255"); }
! 148: | bgp_proto DYNAMIC NAME text ';' {
! 149: if (strchr($4, '%')) cf_error("Forbidden character '%%' in dynamic name");
! 150: if (strlen($4) > (SYM_MAX_LEN - 16)) cf_error("Dynamic name too long");
! 151: BGP_CFG->dynamic_name = $4;
! 152: }
! 153: | 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"); }
! 154: | bgp_proto STRICT BIND bool ';' { BGP_CFG->strict_bind = $4; }
! 155: | bgp_proto PATH METRIC bool ';' { BGP_CFG->compare_path_lengths = $4; }
! 156: | bgp_proto MED METRIC bool ';' { BGP_CFG->med_metric = $4; }
! 157: | bgp_proto IGP METRIC bool ';' { BGP_CFG->igp_metric = $4; }
! 158: | bgp_proto PREFER OLDER bool ';' { BGP_CFG->prefer_older = $4; }
! 159: | bgp_proto DETERMINISTIC MED bool ';' { BGP_CFG->deterministic_med = $4; }
! 160: | bgp_proto DEFAULT BGP_MED expr ';' { BGP_CFG->default_med = $4; }
! 161: | bgp_proto DEFAULT BGP_LOCAL_PREF expr ';' { BGP_CFG->default_local_pref = $4; }
! 162: | bgp_proto SOURCE ADDRESS ipa ';' { BGP_CFG->local_ip = $4; }
! 163: | 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); }
! 164: | bgp_proto CONNECT DELAY TIME expr ';' { BGP_CFG->connect_delay_time = $5; }
! 165: | bgp_proto CONNECT RETRY TIME expr ';' { BGP_CFG->connect_retry_time = $5; }
! 166: | bgp_proto KEEPALIVE TIME expr ';' { BGP_CFG->keepalive_time = $4; }
! 167: | bgp_proto ERROR FORGET TIME expr ';' { BGP_CFG->error_amnesia_time = $5; }
! 168: | bgp_proto ERROR WAIT TIME expr ',' expr ';' { BGP_CFG->error_delay_time_min = $5; BGP_CFG->error_delay_time_max = $7; }
! 169: | bgp_proto DISABLE AFTER ERROR bool ';' { BGP_CFG->disable_after_error = $5; }
! 170: | bgp_proto DISABLE AFTER CEASE bgp_cease_mask ';' { BGP_CFG->disable_after_cease = $5; }
! 171: | bgp_proto ENABLE ROUTE REFRESH bool ';' { BGP_CFG->enable_refresh = $5; }
! 172: | bgp_proto ENABLE AS4 bool ';' { BGP_CFG->enable_as4 = $4; }
! 173: | bgp_proto ENABLE EXTENDED MESSAGES bool ';' { BGP_CFG->enable_extended_messages = $5; }
! 174: | bgp_proto CAPABILITIES bool ';' { BGP_CFG->capabilities = $3; }
! 175: | bgp_proto PASSWORD text ';' { BGP_CFG->password = $3; }
! 176: | bgp_proto SETKEY bool ';' { BGP_CFG->setkey = $3; }
! 177: | bgp_proto PASSIVE bool ';' { BGP_CFG->passive = $3; }
! 178: | bgp_proto INTERPRET COMMUNITIES bool ';' { BGP_CFG->interpret_communities = $4; }
! 179: | bgp_proto ALLOW LOCAL AS ';' { BGP_CFG->allow_local_as = -1; }
! 180: | bgp_proto ALLOW LOCAL AS expr ';' { BGP_CFG->allow_local_as = $5; }
! 181: | bgp_proto ALLOW BGP_LOCAL_PREF bool ';' { BGP_CFG->allow_local_pref = $4; }
! 182: | bgp_proto GRACEFUL RESTART bool ';' { BGP_CFG->gr_mode = $4; }
! 183: | bgp_proto GRACEFUL RESTART AWARE ';' { BGP_CFG->gr_mode = BGP_GR_AWARE; }
! 184: | bgp_proto GRACEFUL RESTART TIME expr ';' { BGP_CFG->gr_time = $5; }
! 185: | bgp_proto LONG LIVED GRACEFUL RESTART bool ';' { BGP_CFG->llgr_mode = $6; }
! 186: | bgp_proto LONG LIVED GRACEFUL RESTART AWARE ';' { BGP_CFG->llgr_mode = BGP_LLGR_AWARE; }
! 187: | bgp_proto LONG LIVED STALE TIME expr ';' { BGP_CFG->llgr_time = $6; }
! 188: | bgp_proto TTL SECURITY bool ';' { BGP_CFG->ttl_security = $4; }
! 189: | bgp_proto CHECK LINK bool ';' { BGP_CFG->check_link = $4; }
! 190: | bgp_proto BFD bool ';' { BGP_CFG->bfd = $3; cf_check_bfd($3); }
! 191: | bgp_proto BFD GRACEFUL ';' { BGP_CFG->bfd = BGP_BFD_GRACEFUL; cf_check_bfd(1); }
! 192: ;
! 193:
! 194: bgp_afi:
! 195: IPV4 { $$ = BGP_AF_IPV4; }
! 196: | IPV6 { $$ = BGP_AF_IPV6; }
! 197: | IPV4 MULTICAST { $$ = BGP_AF_IPV4_MC; }
! 198: | IPV6 MULTICAST { $$ = BGP_AF_IPV6_MC; }
! 199: | IPV4 MPLS { $$ = BGP_AF_IPV4_MPLS; }
! 200: | IPV6 MPLS { $$ = BGP_AF_IPV6_MPLS; }
! 201: | VPN4 MPLS { $$ = BGP_AF_VPN4_MPLS; }
! 202: | VPN6 MPLS { $$ = BGP_AF_VPN6_MPLS; }
! 203: | VPN4 MULTICAST { $$ = BGP_AF_VPN4_MC; }
! 204: | VPN6 MULTICAST { $$ = BGP_AF_VPN6_MC; }
! 205: | FLOW4 { $$ = BGP_AF_FLOW4; }
! 206: | FLOW6 { $$ = BGP_AF_FLOW6; }
! 207: ;
! 208:
! 209: bgp_channel_start: bgp_afi
! 210: {
! 211: const struct bgp_af_desc *desc = bgp_get_af_desc($1);
! 212:
! 213: if (!desc)
! 214: cf_error("Unknown AFI/SAFI");
! 215:
! 216: this_channel = channel_config_get(&channel_bgp, desc->name, desc->net, this_proto);
! 217:
! 218: /* New channel */
! 219: if (!BGP_CC->desc)
! 220: {
! 221: BGP_CC->c.in_filter = FILTER_UNDEF;
! 222: BGP_CC->c.out_filter = FILTER_UNDEF;
! 223: BGP_CC->c.ra_mode = RA_UNDEF;
! 224: BGP_CC->afi = $1;
! 225: BGP_CC->desc = desc;
! 226: BGP_CC->next_hop_keep = 0xff; /* undefined */
! 227: BGP_CC->gr_able = 0xff; /* undefined */
! 228: BGP_CC->llgr_able = 0xff; /* undefined */
! 229: BGP_CC->llgr_time = ~0U; /* undefined */
! 230: BGP_CC->aigp = 0xff; /* undefined */
! 231: }
! 232: };
! 233:
! 234: bgp_nh:
! 235: bool { $$ = $1; }
! 236: | IBGP { $$ = NH_IBGP; }
! 237: | EBGP { $$ = NH_EBGP; }
! 238:
! 239: bgp_channel_item:
! 240: channel_item
! 241: | NEXT HOP ADDRESS ipa { BGP_CC->next_hop_addr = $4; }
! 242: | NEXT HOP SELF bgp_nh { BGP_CC->next_hop_self = $4; }
! 243: | NEXT HOP KEEP bgp_nh { BGP_CC->next_hop_keep = $4; }
! 244: | MANDATORY bool { BGP_CC->mandatory = $2; }
! 245: | MISSING LLADDR SELF { BGP_CC->missing_lladdr = MLL_SELF; }
! 246: | MISSING LLADDR DROP { BGP_CC->missing_lladdr = MLL_DROP; }
! 247: | MISSING LLADDR IGNORE { BGP_CC->missing_lladdr = MLL_IGNORE; }
! 248: | GATEWAY DIRECT { BGP_CC->gw_mode = GW_DIRECT; }
! 249: | GATEWAY RECURSIVE { BGP_CC->gw_mode = GW_RECURSIVE; }
! 250: | SECONDARY bool { BGP_CC->secondary = $2; }
! 251: | GRACEFUL RESTART bool { BGP_CC->gr_able = $3; }
! 252: | LONG LIVED GRACEFUL RESTART bool { BGP_CC->llgr_able = $5; }
! 253: | LONG LIVED STALE TIME expr { BGP_CC->llgr_time = $5; }
! 254: | EXTENDED NEXT HOP bool { BGP_CC->ext_next_hop = $4; }
! 255: | ADD PATHS RX { BGP_CC->add_path = BGP_ADD_PATH_RX; }
! 256: | ADD PATHS TX { BGP_CC->add_path = BGP_ADD_PATH_TX; }
! 257: | ADD PATHS bool { BGP_CC->add_path = $3 ? BGP_ADD_PATH_FULL : 0; }
! 258: | IMPORT TABLE bool { BGP_CC->import_table = $3; }
! 259: | EXPORT TABLE bool { BGP_CC->export_table = $3; }
! 260: | AIGP bool { BGP_CC->aigp = $2; BGP_CC->aigp_originate = 0; }
! 261: | AIGP ORIGINATE { BGP_CC->aigp = 1; BGP_CC->aigp_originate = 1; }
! 262: | COST expr { BGP_CC->cost = $2; if ($2 < 1) cf_error("Cost must be positive"); }
! 263: | IGP TABLE rtable {
! 264: if (BGP_CC->desc->no_igp)
! 265: cf_error("IGP table not allowed here");
! 266:
! 267: if ($3->addr_type == NET_IP4)
! 268: BGP_CC->igp_table_ip4 = $3;
! 269: else if ($3->addr_type == NET_IP6)
! 270: BGP_CC->igp_table_ip6 = $3;
! 271: else
! 272: cf_error("Mismatched IGP table type");
! 273: }
! 274: ;
! 275:
! 276: bgp_channel_opts:
! 277: /* empty */
! 278: | bgp_channel_opts bgp_channel_item ';'
! 279: ;
! 280:
! 281: bgp_channel_opt_list:
! 282: /* empty */
! 283: | '{' bgp_channel_opts '}'
! 284: ;
! 285:
! 286: bgp_channel_end:
! 287: {
! 288: if (!this_channel->table)
! 289: cf_error("Routing table not specified");
! 290:
! 291: this_channel = NULL;
! 292: };
! 293:
! 294: bgp_proto_channel: bgp_channel_start bgp_channel_opt_list bgp_channel_end;
! 295:
! 296:
! 297: dynamic_attr: BGP_ORIGIN
! 298: { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_ENUM_BGP_ORIGIN, EA_CODE(PROTOCOL_BGP, BA_ORIGIN)); } ;
! 299: dynamic_attr: BGP_PATH
! 300: { $$ = f_new_dynamic_attr(EAF_TYPE_AS_PATH, T_PATH, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); } ;
! 301: dynamic_attr: BGP_NEXT_HOP
! 302: { $$ = f_new_dynamic_attr(EAF_TYPE_IP_ADDRESS, T_IP, EA_CODE(PROTOCOL_BGP, BA_NEXT_HOP)); } ;
! 303: dynamic_attr: BGP_MED
! 304: { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(PROTOCOL_BGP, BA_MULTI_EXIT_DISC)); } ;
! 305: dynamic_attr: BGP_LOCAL_PREF
! 306: { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF)); } ;
! 307: dynamic_attr: BGP_ATOMIC_AGGR
! 308: { $$ = f_new_dynamic_attr(EAF_TYPE_OPAQUE, T_ENUM_EMPTY, EA_CODE(PROTOCOL_BGP, BA_ATOMIC_AGGR)); } ;
! 309: dynamic_attr: BGP_AGGREGATOR
! 310: { $$ = f_new_dynamic_attr(EAF_TYPE_OPAQUE, T_ENUM_EMPTY, EA_CODE(PROTOCOL_BGP, BA_AGGREGATOR)); } ;
! 311: dynamic_attr: BGP_COMMUNITY
! 312: { $$ = f_new_dynamic_attr(EAF_TYPE_INT_SET, T_CLIST, EA_CODE(PROTOCOL_BGP, BA_COMMUNITY)); } ;
! 313: dynamic_attr: BGP_ORIGINATOR_ID
! 314: { $$ = f_new_dynamic_attr(EAF_TYPE_ROUTER_ID, T_QUAD, EA_CODE(PROTOCOL_BGP, BA_ORIGINATOR_ID)); } ;
! 315: dynamic_attr: BGP_CLUSTER_LIST
! 316: { $$ = f_new_dynamic_attr(EAF_TYPE_INT_SET, T_CLIST, EA_CODE(PROTOCOL_BGP, BA_CLUSTER_LIST)); } ;
! 317: dynamic_attr: BGP_EXT_COMMUNITY
! 318: { $$ = f_new_dynamic_attr(EAF_TYPE_EC_SET, T_ECLIST, EA_CODE(PROTOCOL_BGP, BA_EXT_COMMUNITY)); } ;
! 319: dynamic_attr: BGP_AIGP
! 320: { $$ = f_new_dynamic_attr(EAF_TYPE_OPAQUE, T_ENUM_EMPTY, EA_CODE(PROTOCOL_BGP, BA_AIGP)); } ;
! 321: dynamic_attr: BGP_LARGE_COMMUNITY
! 322: { $$ = f_new_dynamic_attr(EAF_TYPE_LC_SET, T_LCLIST, EA_CODE(PROTOCOL_BGP, BA_LARGE_COMMUNITY)); } ;
! 323:
! 324:
! 325:
! 326: CF_ENUM(T_ENUM_BGP_ORIGIN, ORIGIN_, IGP, EGP, INCOMPLETE)
! 327:
! 328: CF_CODE
! 329:
! 330: CF_END
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