1/* BGP message definition header. 2 Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro 3 4This file is part of GNU Zebra. 5 6GNU Zebra is free software; you can redistribute it and/or modify it 7under the terms of the GNU General Public License as published by the 8Free Software Foundation; either version 2, or (at your option) any 9later version. 10 11GNU Zebra is distributed in the hope that it will be useful, but 12WITHOUT ANY WARRANTY; without even the implied warranty of 13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14General Public License for more details. 15 16You should have received a copy of the GNU General Public License 17along with GNU Zebra; see the file COPYING. If not, write to the Free 18Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 1902111-1307, USA. */ 20 21#ifndef _QUAGGA_BGPD_H 22#define _QUAGGA_BGPD_H 23 24/* For union sockunion. */ 25#include "sockunion.h" 26 27/* Typedef BGP specific types. */ 28typedef u_int32_t as_t; 29typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */ 30typedef u_int16_t bgp_size_t; 31 32/* BGP master for system wide configurations and variables. */ 33struct bgp_master 34{ 35 /* BGP instance list. */ 36 struct list *bgp; 37 38 /* BGP thread master. */ 39 struct thread_master *master; 40 41 /* work queues */ 42 struct work_queue *process_main_queue; 43 struct work_queue *process_rsclient_queue; 44 45 /* Listening sockets */ 46 struct list *listen_sockets; 47 48 /* BGP port number. */ 49 u_int16_t port; 50 51 /* Listener address */ 52 char *address; 53 54 /* BGP start time. */ 55 time_t start_time; 56 57 /* Various BGP global configuration. */ 58 u_char options; 59#define BGP_OPT_NO_FIB (1 << 0) 60#define BGP_OPT_MULTIPLE_INSTANCE (1 << 1) 61#define BGP_OPT_CONFIG_CISCO (1 << 2) 62#define BGP_OPT_NO_LISTEN (1 << 3) 63}; 64 65/* BGP instance structure. */ 66struct bgp 67{ 68 /* AS number of this BGP instance. */ 69 as_t as; 70 71 /* Name of this BGP instance. */ 72 char *name; 73 74 /* Reference count to allow peer_delete to finish after bgp_delete */ 75 int lock; 76 77 /* Self peer. */ 78 struct peer *peer_self; 79 80 /* BGP peer. */ 81 struct list *peer; 82 83 /* BGP peer group. */ 84 struct list *group; 85 86 /* BGP route-server-clients. */ 87 struct list *rsclient; 88 89 /* BGP configuration. */ 90 u_int16_t config; 91#define BGP_CONFIG_ROUTER_ID (1 << 0) 92#define BGP_CONFIG_CLUSTER_ID (1 << 1) 93#define BGP_CONFIG_CONFEDERATION (1 << 2) 94 95 /* BGP router identifier. */ 96 struct in_addr router_id; 97 struct in_addr router_id_static; 98 99 /* BGP route reflector cluster ID. */ 100 struct in_addr cluster_id; 101 102 /* BGP confederation information. */ 103 as_t confed_id; 104 as_t *confed_peers; 105 int confed_peers_cnt; 106 107 struct thread *t_startup; 108 109 /* BGP flags. */ 110 u_int16_t flags; 111#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0) 112#define BGP_FLAG_DETERMINISTIC_MED (1 << 1) 113#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2) 114#define BGP_FLAG_MED_CONFED (1 << 3) 115#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4) 116#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5) 117#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6) 118#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7) 119#define BGP_FLAG_ASPATH_IGNORE (1 << 8) 120#define BGP_FLAG_IMPORT_CHECK (1 << 9) 121#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10) 122#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11) 123#define BGP_FLAG_GRACEFUL_RESTART (1 << 12) 124#define BGP_FLAG_ASPATH_CONFED (1 << 13) 125#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14) 126 127 /* BGP Per AF flags */ 128 u_int16_t af_flags[AFI_MAX][SAFI_MAX]; 129#define BGP_CONFIG_DAMPENING (1 << 0) 130 131 /* Static route configuration. */ 132 struct bgp_table *route[AFI_MAX][SAFI_MAX]; 133 134 /* Aggregate address configuration. */ 135 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX]; 136 137 /* BGP routing information base. */ 138 struct bgp_table *rib[AFI_MAX][SAFI_MAX]; 139 140 /* BGP redistribute configuration. */ 141 u_char redist[AFI_MAX][ZEBRA_ROUTE_MAX]; 142 143 /* BGP redistribute metric configuration. */ 144 u_char redist_metric_flag[AFI_MAX][ZEBRA_ROUTE_MAX]; 145 u_int32_t redist_metric[AFI_MAX][ZEBRA_ROUTE_MAX]; 146 147 /* BGP redistribute route-map. */ 148 struct 149 { 150 char *name; 151 struct route_map *map; 152 } rmap[AFI_MAX][ZEBRA_ROUTE_MAX]; 153 154 /* BGP distance configuration. */ 155 u_char distance_ebgp; 156 u_char distance_ibgp; 157 u_char distance_local; 158 159 /* BGP default local-preference. */ 160 u_int32_t default_local_pref; 161 162 /* BGP default timer. */ 163 u_int32_t default_holdtime; 164 u_int32_t default_keepalive; 165 166 /* BGP graceful restart */ 167 u_int32_t restart_time; 168 u_int32_t stalepath_time; 169 170 /* Maximum-paths configuration */ 171 struct bgp_maxpaths_cfg { 172 u_int16_t maxpaths_ebgp; 173 u_int16_t maxpaths_ibgp; 174 } maxpaths[AFI_MAX][SAFI_MAX]; 175}; 176 177/* BGP peer-group support. */ 178struct peer_group 179{ 180 /* Name of the peer-group. */ 181 char *name; 182 183 /* Pointer to BGP. */ 184 struct bgp *bgp; 185 186 /* Peer-group client list. */ 187 struct list *peer; 188 189 /* Peer-group config */ 190 struct peer *conf; 191}; 192 193/* BGP Notify message format. */ 194struct bgp_notify 195{ 196 u_char code; 197 u_char subcode; 198 char *data; 199 bgp_size_t length; 200}; 201 202/* Next hop self address. */ 203struct bgp_nexthop 204{ 205 struct interface *ifp; 206 struct in_addr v4; 207#ifdef HAVE_IPV6 208 struct in6_addr v6_global; 209 struct in6_addr v6_local; 210#endif /* HAVE_IPV6 */ 211}; 212 213/* BGP router distinguisher value. */ 214#define BGP_RD_SIZE 8 215 216struct bgp_rd 217{ 218 u_char val[BGP_RD_SIZE]; 219}; 220 221#define RMAP_IN 0 222#define RMAP_OUT 1 223#define RMAP_IMPORT 2 224#define RMAP_EXPORT 3 225#define RMAP_MAX 4 226 227/* BGP filter structure. */ 228struct bgp_filter 229{ 230 /* Distribute-list. */ 231 struct 232 { 233 char *name; 234 struct access_list *alist; 235 } dlist[FILTER_MAX]; 236 237 /* Prefix-list. */ 238 struct 239 { 240 char *name; 241 struct prefix_list *plist; 242 } plist[FILTER_MAX]; 243 244 /* Filter-list. */ 245 struct 246 { 247 char *name; 248 struct as_list *aslist; 249 } aslist[FILTER_MAX]; 250 251 /* Route-map. */ 252 struct 253 { 254 char *name; 255 struct route_map *map; 256 } map[RMAP_MAX]; 257 258 /* Unsuppress-map. */ 259 struct 260 { 261 char *name; 262 struct route_map *map; 263 } usmap; 264}; 265 266/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, 267 a peer who's AS is part of our Confederation. */ 268typedef enum 269{ 270 BGP_PEER_IBGP = 1, 271 BGP_PEER_EBGP, 272 BGP_PEER_INTERNAL, 273 BGP_PEER_CONFED, 274} bgp_peer_sort_t; 275 276/* BGP neighbor structure. */ 277struct peer 278{ 279 /* BGP structure. */ 280 struct bgp *bgp; 281 282 /* reference count, primarily to allow bgp_process'ing of route_node's 283 * to be done after a struct peer is deleted. 284 * 285 * named 'lock' for hysterical reasons within Quagga. 286 */ 287 int lock; 288 289 /* BGP peer group. */ 290 struct peer_group *group; 291 u_char af_group[AFI_MAX][SAFI_MAX]; 292 293 /* Peer's remote AS number. */ 294 as_t as; 295 296 /* Peer's local AS number. */ 297 as_t local_as; 298 299 bgp_peer_sort_t sort; 300 301 /* Peer's Change local AS number. */ 302 as_t change_local_as; 303 304 /* Remote router ID. */ 305 struct in_addr remote_id; 306 307 /* Local router ID. */ 308 struct in_addr local_id; 309 310 /* Peer specific RIB when configured as route-server-client. */ 311 struct bgp_table *rib[AFI_MAX][SAFI_MAX]; 312 313 /* Packet receive and send buffer. */ 314 struct stream *ibuf; 315 struct stream_fifo *obuf; 316 struct stream *work; 317 318 /* We use a separate stream to encode MP_REACH_NLRI for efficient 319 * NLRI packing. peer->work stores all the other attributes. The 320 * actual packet is then constructed by concatenating the two. 321 */ 322 struct stream *scratch; 323 324 /* Status of the peer. */ 325 int status; 326 int ostatus; 327 328 /* Peer index, used for dumping TABLE_DUMP_V2 format */ 329 uint16_t table_dump_index; 330 331 /* Peer information */ 332 int fd; /* File descriptor */ 333 int ttl; /* TTL of TCP connection to the peer. */ 334 int gtsm_hops; /* minimum hopcount to peer */ 335 char *desc; /* Description of the peer. */ 336 unsigned short port; /* Destination port for peer */ 337 char *host; /* Printable address of the peer. */ 338 union sockunion su; /* Sockunion address of the peer. */ 339 time_t uptime; /* Last Up/Down time */ 340 time_t readtime; /* Last read time */ 341 time_t resettime; /* Last reset time */ 342 343 unsigned int ifindex; /* ifindex of the BGP connection. */ 344 char *ifname; /* bind interface name. */ 345 char *update_if; 346 union sockunion *update_source; 347 struct zlog *log; 348 349 union sockunion *su_local; /* Sockunion of local address. */ 350 union sockunion *su_remote; /* Sockunion of remote address. */ 351 int shared_network; /* Is this peer shared same network. */ 352 struct bgp_nexthop nexthop; /* Nexthop */ 353 354 /* Peer address family configuration. */ 355 u_char afc[AFI_MAX][SAFI_MAX]; 356 u_char afc_nego[AFI_MAX][SAFI_MAX]; 357 u_char afc_adv[AFI_MAX][SAFI_MAX]; 358 u_char afc_recv[AFI_MAX][SAFI_MAX]; 359 360 /* Capability flags (reset in bgp_stop) */ 361 u_int16_t cap; 362#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */ 363#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */ 364#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */ 365#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */ 366#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */ 367#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */ 368#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */ 369#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */ 370#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */ 371#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */ 372#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */ 373 374 /* Capability flags (reset in bgp_stop) */ 375 u_int16_t af_cap[AFI_MAX][SAFI_MAX]; 376#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */ 377#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */ 378#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */ 379#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */ 380#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */ 381#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */ 382#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */ 383#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */ 384 385 /* Global configuration flags. */ 386 u_int32_t flags; 387#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */ 388#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */ 389#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */ 390#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */ 391#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */ 392#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */ 393#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */ 394#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */ 395#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */ 396 397 /* NSF mode (graceful restart) */ 398 u_char nsf[AFI_MAX][SAFI_MAX]; 399 400 /* Per AF configuration flags. */ 401 u_int32_t af_flags[AFI_MAX][SAFI_MAX]; 402#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */ 403#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */ 404#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */ 405#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */ 406#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */ 407#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */ 408#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */ 409#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */ 410#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */ 411#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */ 412#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */ 413#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */ 414#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */ 415#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */ 416#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */ 417#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */ 418#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */ 419#define PEER_FLAG_NEXTHOP_SELF_ALL (1 << 17) /* next-hop-self all */ 420 421 /* MD5 password */ 422 char *password; 423 424 /* default-originate route-map. */ 425 struct 426 { 427 char *name; 428 struct route_map *map; 429 } default_rmap[AFI_MAX][SAFI_MAX]; 430 431 /* Peer status flags. */ 432 u_int16_t sflags; 433#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */ 434#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */ 435#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */ 436#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */ 437#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */ 438#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */ 439#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */ 440 441 /* Peer status af flags (reset in bgp_stop) */ 442 u_int16_t af_sflags[AFI_MAX][SAFI_MAX]; 443#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */ 444#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */ 445#define PEER_STATUS_DEFAULT_ORIGINATE (1 << 2) /* default-originate peer */ 446#define PEER_STATUS_PREFIX_THRESHOLD (1 << 3) /* exceed prefix-threshold */ 447#define PEER_STATUS_PREFIX_LIMIT (1 << 4) /* exceed prefix-limit */ 448#define PEER_STATUS_EOR_SEND (1 << 5) /* end-of-rib send to peer */ 449#define PEER_STATUS_EOR_RECEIVED (1 << 6) /* end-of-rib received from peer */ 450 451 /* Default attribute value for the peer. */ 452 u_int32_t config; 453#define PEER_CONFIG_WEIGHT (1 << 0) /* Default weight. */ 454#define PEER_CONFIG_TIMER (1 << 1) /* keepalive & holdtime */ 455#define PEER_CONFIG_CONNECT (1 << 2) /* connect */ 456#define PEER_CONFIG_ROUTEADV (1 << 3) /* route advertise */ 457 u_int32_t weight; 458 u_int32_t holdtime; 459 u_int32_t keepalive; 460 u_int32_t connect; 461 u_int32_t routeadv; 462 463 /* Timer values. */ 464 u_int32_t v_start; 465 u_int32_t v_connect; 466 u_int32_t v_holdtime; 467 u_int32_t v_keepalive; 468 u_int32_t v_asorig; 469 u_int32_t v_routeadv; 470 u_int32_t v_pmax_restart; 471 u_int32_t v_gr_restart; 472 473 /* Threads. */ 474 struct thread *t_read; 475 struct thread *t_write; 476 struct thread *t_start; 477 struct thread *t_connect; 478 struct thread *t_holdtime; 479 struct thread *t_keepalive; 480 struct thread *t_asorig; 481 struct thread *t_routeadv; 482 struct thread *t_pmax_restart; 483 struct thread *t_gr_restart; 484 struct thread *t_gr_stale; 485 486 /* workqueues */ 487 struct work_queue *clear_node_queue; 488 489 /* Statistics field */ 490 u_int32_t open_in; /* Open message input count */ 491 u_int32_t open_out; /* Open message output count */ 492 u_int32_t update_in; /* Update message input count */ 493 u_int32_t update_out; /* Update message ouput count */ 494 time_t update_time; /* Update message received time. */ 495 u_int32_t keepalive_in; /* Keepalive input count */ 496 u_int32_t keepalive_out; /* Keepalive output count */ 497 u_int32_t notify_in; /* Notify input count */ 498 u_int32_t notify_out; /* Notify output count */ 499 u_int32_t refresh_in; /* Route Refresh input count */ 500 u_int32_t refresh_out; /* Route Refresh output count */ 501 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */ 502 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */ 503 504 /* BGP state count */ 505 u_int32_t established; /* Established */ 506 u_int32_t dropped; /* Dropped */ 507 508 /* Syncronization list and time. */ 509 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; 510 time_t synctime; 511 512 /* Send prefix count. */ 513 unsigned long scount[AFI_MAX][SAFI_MAX]; 514 515 /* Announcement attribute hash. */ 516 struct hash *hash[AFI_MAX][SAFI_MAX]; 517 518 /* Notify data. */ 519 struct bgp_notify notify; 520 521 /* Whole packet size to be read. */ 522 unsigned long packet_size; 523 524 /* Filter structure. */ 525 struct bgp_filter filter[AFI_MAX][SAFI_MAX]; 526 527 /* ORF Prefix-list */ 528 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; 529 530 /* Prefix count. */ 531 unsigned long pcount[AFI_MAX][SAFI_MAX]; 532 533 /* Max prefix count. */ 534 unsigned long pmax[AFI_MAX][SAFI_MAX]; 535 u_char pmax_threshold[AFI_MAX][SAFI_MAX]; 536 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX]; 537#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 538 539 /* allowas-in. */ 540 char allowas_in[AFI_MAX][SAFI_MAX]; 541 542 /* peer reset cause */ 543 char last_reset; 544#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */ 545#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */ 546#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */ 547#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */ 548#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */ 549#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */ 550#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */ 551#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */ 552#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */ 553#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */ 554#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */ 555#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */ 556#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */ 557#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */ 558#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */ 559#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */ 560#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */ 561#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */ 562#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */ 563#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */ 564#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */ 565#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */ 566 567 /* The kind of route-map Flags.*/ 568 u_char rmap_type; 569#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */ 570#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */ 571#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */ 572#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */ 573#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */ 574#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */ 575#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */ 576#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */ 577}; 578 579#define PEER_PASSWORD_MINLEN (1) 580#define PEER_PASSWORD_MAXLEN (80) 581 582/* This structure's member directly points incoming packet data 583 stream. */ 584struct bgp_nlri 585{ 586 /* AFI. */ 587 afi_t afi; 588 589 /* SAFI. */ 590 safi_t safi; 591 592 /* Pointer to NLRI byte stream. */ 593 u_char *nlri; 594 595 /* Length of whole NLRI. */ 596 bgp_size_t length; 597}; 598 599/* BGP versions. */ 600#define BGP_VERSION_4 4 601 602/* Default BGP port number. */ 603#define BGP_PORT_DEFAULT 179 604 605/* BGP message header and packet size. */ 606#define BGP_MARKER_SIZE 16 607#define BGP_HEADER_SIZE 19 608#define BGP_MAX_PACKET_SIZE 4096 609 610/* BGP minimum message size. */ 611#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) 612#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) 613#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) 614#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) 615#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) 616#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) 617 618/* BGP message types. */ 619#define BGP_MSG_OPEN 1 620#define BGP_MSG_UPDATE 2 621#define BGP_MSG_NOTIFY 3 622#define BGP_MSG_KEEPALIVE 4 623#define BGP_MSG_ROUTE_REFRESH_NEW 5 624#define BGP_MSG_CAPABILITY 6 625#define BGP_MSG_ROUTE_REFRESH_OLD 128 626 627/* BGP open optional parameter. */ 628#define BGP_OPEN_OPT_AUTH 1 629#define BGP_OPEN_OPT_CAP 2 630 631/* BGP4 attribute type codes. */ 632#define BGP_ATTR_ORIGIN 1 633#define BGP_ATTR_AS_PATH 2 634#define BGP_ATTR_NEXT_HOP 3 635#define BGP_ATTR_MULTI_EXIT_DISC 4 636#define BGP_ATTR_LOCAL_PREF 5 637#define BGP_ATTR_ATOMIC_AGGREGATE 6 638#define BGP_ATTR_AGGREGATOR 7 639#define BGP_ATTR_COMMUNITIES 8 640#define BGP_ATTR_ORIGINATOR_ID 9 641#define BGP_ATTR_CLUSTER_LIST 10 642#define BGP_ATTR_DPA 11 643#define BGP_ATTR_ADVERTISER 12 644#define BGP_ATTR_RCID_PATH 13 645#define BGP_ATTR_MP_REACH_NLRI 14 646#define BGP_ATTR_MP_UNREACH_NLRI 15 647#define BGP_ATTR_EXT_COMMUNITIES 16 648#define BGP_ATTR_AS4_PATH 17 649#define BGP_ATTR_AS4_AGGREGATOR 18 650#define BGP_ATTR_AS_PATHLIMIT 21 651 652/* BGP update origin. */ 653#define BGP_ORIGIN_IGP 0 654#define BGP_ORIGIN_EGP 1 655#define BGP_ORIGIN_INCOMPLETE 2 656 657/* BGP notify message codes. */ 658#define BGP_NOTIFY_HEADER_ERR 1 659#define BGP_NOTIFY_OPEN_ERR 2 660#define BGP_NOTIFY_UPDATE_ERR 3 661#define BGP_NOTIFY_HOLD_ERR 4 662#define BGP_NOTIFY_FSM_ERR 5 663#define BGP_NOTIFY_CEASE 6 664#define BGP_NOTIFY_CAPABILITY_ERR 7 665#define BGP_NOTIFY_MAX 8 666 667#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 668 669/* BGP_NOTIFY_HEADER_ERR sub codes. */ 670#define BGP_NOTIFY_HEADER_NOT_SYNC 1 671#define BGP_NOTIFY_HEADER_BAD_MESLEN 2 672#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 673#define BGP_NOTIFY_HEADER_MAX 4 674 675/* BGP_NOTIFY_OPEN_ERR sub codes. */ 676#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 677#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 678#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 679#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 680#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5 681#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 682#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 683#define BGP_NOTIFY_OPEN_MAX 8 684 685/* BGP_NOTIFY_UPDATE_ERR sub codes. */ 686#define BGP_NOTIFY_UPDATE_MAL_ATTR 1 687#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 688#define BGP_NOTIFY_UPDATE_MISS_ATTR 3 689#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 690#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 691#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 692#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7 693#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 694#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 695#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 696#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 697#define BGP_NOTIFY_UPDATE_MAX 12 698 699/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ 700#define BGP_NOTIFY_CEASE_MAX_PREFIX 1 701#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 702#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 703#define BGP_NOTIFY_CEASE_ADMIN_RESET 4 704#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 705#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 706#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 707#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 708#define BGP_NOTIFY_CEASE_MAX 9 709 710/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */ 711#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1 712#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2 713#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3 714#define BGP_NOTIFY_CAPABILITY_MAX 4 715 716/* BGP finite state machine status. */ 717#define Idle 1 718#define Connect 2 719#define Active 3 720#define OpenSent 4 721#define OpenConfirm 5 722#define Established 6 723#define Clearing 7 724#define Deleted 8 725#define BGP_STATUS_MAX 9 726 727/* BGP finite state machine events. */ 728#define BGP_Start 1 729#define BGP_Stop 2 730#define TCP_connection_open 3 731#define TCP_connection_closed 4 732#define TCP_connection_open_failed 5 733#define TCP_fatal_error 6 734#define ConnectRetry_timer_expired 7 735#define Hold_Timer_expired 8 736#define KeepAlive_timer_expired 9 737#define Receive_OPEN_message 10 738#define Receive_KEEPALIVE_message 11 739#define Receive_UPDATE_message 12 740#define Receive_NOTIFICATION_message 13 741#define Clearing_Completed 14 742#define BGP_EVENTS_MAX 15 743 744/* BGP timers default value. */ 745#define BGP_INIT_START_TIMER 5 746#define BGP_ERROR_START_TIMER 30 747#define BGP_DEFAULT_HOLDTIME 180 748#define BGP_DEFAULT_KEEPALIVE 60 749#define BGP_DEFAULT_ASORIGINATE 15 750#define BGP_DEFAULT_EBGP_ROUTEADV 30 751#define BGP_DEFAULT_IBGP_ROUTEADV 5 752#define BGP_CLEAR_CONNECT_RETRY 20 753#define BGP_DEFAULT_CONNECT_RETRY 120 754 755/* BGP default local preference. */ 756#define BGP_DEFAULT_LOCAL_PREF 100 757 758/* BGP graceful restart */ 759#define BGP_DEFAULT_RESTART_TIME 120 760#define BGP_DEFAULT_STALEPATH_TIME 360 761 762/* RFC4364 */ 763#define SAFI_MPLS_LABELED_VPN 128 764 765/* Max TTL value. */ 766#define TTL_MAX 255 767 768/* BGP uptime string length. */ 769#define BGP_UPTIME_LEN 25 770 771/* Default configuration settings for bgpd. */ 772#define BGP_VTY_PORT 2605 773#define BGP_DEFAULT_CONFIG "bgpd.conf" 774 775/* Check AS path loop when we send NLRI. */ 776/* #define BGP_SEND_ASPATH_CHECK */ 777 778/* Flag for peer_clear_soft(). */ 779enum bgp_clear_type 780{ 781 BGP_CLEAR_SOFT_NONE, 782 BGP_CLEAR_SOFT_OUT, 783 BGP_CLEAR_SOFT_IN, 784 BGP_CLEAR_SOFT_BOTH, 785 BGP_CLEAR_SOFT_IN_ORF_PREFIX, 786 BGP_CLEAR_SOFT_RSCLIENT 787}; 788 789/* Macros. */ 790#define BGP_INPUT(P) ((P)->ibuf) 791#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P))) 792#define BGP_IS_VALID_STATE_FOR_NOTIF(S)\ 793 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) 794 795/* Count prefix size from mask length */ 796#define PSIZE(a) (((a) + 7) / (8)) 797 798/* BGP error codes. */ 799#define BGP_SUCCESS 0 800#define BGP_ERR_INVALID_VALUE -1 801#define BGP_ERR_INVALID_FLAG -2 802#define BGP_ERR_INVALID_AS -3 803#define BGP_ERR_INVALID_BGP -4 804#define BGP_ERR_PEER_GROUP_MEMBER -5 805#define BGP_ERR_MULTIPLE_INSTANCE_USED -6 806#define BGP_ERR_PEER_GROUP_MEMBER_EXISTS -7 807#define BGP_ERR_PEER_BELONGS_TO_GROUP -8 808#define BGP_ERR_PEER_GROUP_AF_UNCONFIGURED -9 809#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -10 810#define BGP_ERR_PEER_GROUP_CANT_CHANGE -11 811#define BGP_ERR_PEER_GROUP_MISMATCH -12 812#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -13 813#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -14 814#define BGP_ERR_AS_MISMATCH -15 815#define BGP_ERR_PEER_INACTIVE -16 816#define BGP_ERR_INVALID_FOR_PEER_GROUP_MEMBER -17 817#define BGP_ERR_PEER_GROUP_HAS_THE_FLAG -18 818#define BGP_ERR_PEER_FLAG_CONFLICT -19 819#define BGP_ERR_PEER_GROUP_SHUTDOWN -20 820#define BGP_ERR_PEER_FILTER_CONFLICT -21 821#define BGP_ERR_NOT_INTERNAL_PEER -22 822#define BGP_ERR_REMOVE_PRIVATE_AS -23 823#define BGP_ERR_AF_UNCONFIGURED -24 824#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -25 825#define BGP_ERR_INSTANCE_MISMATCH -26 826#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -27 827#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -28 828#define BGP_ERR_TCPSIG_FAILED -29 829#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -30 830#define BGP_ERR_NO_IBGP_WITH_TTLHACK -31 831#define BGP_ERR_MAX -32 832#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -33 833 834extern struct bgp_master *bm; 835 836extern struct thread_master *master; 837 838/* Prototypes. */ 839extern void bgp_terminate (void); 840extern void bgp_reset (void); 841extern time_t bgp_clock (void); 842extern void bgp_zclient_reset (void); 843extern int bgp_nexthop_set (union sockunion *, union sockunion *, 844 struct bgp_nexthop *, struct peer *); 845extern struct bgp *bgp_get_default (void); 846extern struct bgp *bgp_lookup (as_t, const char *); 847extern struct bgp *bgp_lookup_by_name (const char *); 848extern struct peer *peer_lookup (struct bgp *, union sockunion *); 849extern struct peer_group *peer_group_lookup (struct bgp *, const char *); 850extern struct peer_group *peer_group_get (struct bgp *, const char *); 851extern struct peer *peer_lookup_with_open (union sockunion *, as_t, struct in_addr *, 852 int *); 853extern struct peer *peer_lock (struct peer *); 854extern struct peer *peer_unlock (struct peer *); 855extern bgp_peer_sort_t peer_sort (struct peer *peer); 856extern int peer_active (struct peer *); 857extern int peer_active_nego (struct peer *); 858extern struct peer *peer_create_accept (struct bgp *); 859extern char *peer_uptime (time_t, char *, size_t); 860extern int bgp_config_write (struct vty *); 861extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *); 862 863extern void bgp_master_init (void); 864 865extern void bgp_init (void); 866extern void bgp_route_map_init (void); 867 868extern int bgp_option_set (int); 869extern int bgp_option_unset (int); 870extern int bgp_option_check (int); 871 872extern int bgp_get (struct bgp **, as_t *, const char *); 873extern int bgp_delete (struct bgp *); 874 875extern int bgp_flag_set (struct bgp *, int); 876extern int bgp_flag_unset (struct bgp *, int); 877extern int bgp_flag_check (struct bgp *, int); 878 879extern void bgp_lock (struct bgp *); 880extern void bgp_unlock (struct bgp *); 881 882extern int bgp_router_id_set (struct bgp *, struct in_addr *); 883 884extern int bgp_cluster_id_set (struct bgp *, struct in_addr *); 885extern int bgp_cluster_id_unset (struct bgp *); 886 887extern int bgp_confederation_id_set (struct bgp *, as_t); 888extern int bgp_confederation_id_unset (struct bgp *); 889extern int bgp_confederation_peers_check (struct bgp *, as_t); 890 891extern int bgp_confederation_peers_add (struct bgp *, as_t); 892extern int bgp_confederation_peers_remove (struct bgp *, as_t); 893 894extern int bgp_timers_set (struct bgp *, u_int32_t, u_int32_t); 895extern int bgp_timers_unset (struct bgp *); 896 897extern int bgp_default_local_preference_set (struct bgp *, u_int32_t); 898extern int bgp_default_local_preference_unset (struct bgp *); 899 900extern int peer_rsclient_active (struct peer *); 901 902extern int peer_remote_as (struct bgp *, union sockunion *, as_t *, afi_t, safi_t); 903extern int peer_group_remote_as (struct bgp *, const char *, as_t *); 904extern int peer_delete (struct peer *peer); 905extern int peer_group_delete (struct peer_group *); 906extern int peer_group_remote_as_delete (struct peer_group *); 907 908extern int peer_activate (struct peer *, afi_t, safi_t); 909extern int peer_deactivate (struct peer *, afi_t, safi_t); 910 911extern int peer_group_bind (struct bgp *, union sockunion *, struct peer_group *, 912 afi_t, safi_t, as_t *); 913extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *, 914 afi_t, safi_t); 915 916extern int peer_flag_set (struct peer *, u_int32_t); 917extern int peer_flag_unset (struct peer *, u_int32_t); 918 919extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t); 920extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t); 921extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t); 922 923extern int peer_ebgp_multihop_set (struct peer *, int); 924extern int peer_ebgp_multihop_unset (struct peer *); 925 926extern int peer_description_set (struct peer *, char *); 927extern int peer_description_unset (struct peer *); 928 929extern int peer_update_source_if_set (struct peer *, const char *); 930extern int peer_update_source_addr_set (struct peer *, union sockunion *); 931extern int peer_update_source_unset (struct peer *); 932 933extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *); 934extern int peer_default_originate_unset (struct peer *, afi_t, safi_t); 935 936extern int peer_port_set (struct peer *, u_int16_t); 937extern int peer_port_unset (struct peer *); 938 939extern int peer_weight_set (struct peer *, u_int16_t); 940extern int peer_weight_unset (struct peer *); 941 942extern int peer_timers_set (struct peer *, u_int32_t, u_int32_t); 943extern int peer_timers_unset (struct peer *); 944 945extern int peer_timers_connect_set (struct peer *, u_int32_t); 946extern int peer_timers_connect_unset (struct peer *); 947 948extern int peer_advertise_interval_set (struct peer *, u_int32_t); 949extern int peer_advertise_interval_unset (struct peer *); 950 951extern int peer_interface_set (struct peer *, const char *); 952extern int peer_interface_unset (struct peer *); 953 954extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *); 955extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int); 956 957extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int); 958extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t); 959 960extern int peer_local_as_set (struct peer *, as_t, int, int); 961extern int peer_local_as_unset (struct peer *); 962 963extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *); 964extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int); 965 966extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *); 967extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int); 968 969extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *); 970extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int); 971 972extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *); 973 974extern int peer_password_set (struct peer *, const char *); 975extern int peer_password_unset (struct peer *); 976 977extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t); 978 979extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t); 980extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t); 981 982extern int peer_clear (struct peer *); 983extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type); 984 985extern int peer_ttl_security_hops_set (struct peer *, int); 986extern int peer_ttl_security_hops_unset (struct peer *); 987 988#endif /* _QUAGGA_BGPD_H */ 989