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Merge pull request #4273 from donaldsharp/doc_zebra_command
[mirror_frr.git] / bgpd / bgp_route.h
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718e3744 1/* BGP routing information base
896014f4
DL		 2 * Copyright (C) 1996, 97, 98, 2000 Kunihiro Ishiguro
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
718e3744 20
00d252cb 21#ifndef _QUAGGA_BGP_ROUTE_H
22#define _QUAGGA_BGP_ROUTE_H
23
fb018d25 24#include "queue.h"
74489921 25#include "nexthop.h"
200df115 26#include "bgp_table.h"
dcc68b5e 27#include "bgp_addpath_types.h"
200df115 28
fb018d25 29struct bgp_nexthop_cache;
7ef5a232 30struct bgp_route_evpn;
fb018d25 31
d62a17ae 32enum bgp_show_type {
33 bgp_show_type_normal,
34 bgp_show_type_regexp,
35 bgp_show_type_prefix_list,
36 bgp_show_type_filter_list,
37 bgp_show_type_route_map,
38 bgp_show_type_neighbor,
39 bgp_show_type_cidr_only,
40 bgp_show_type_prefix_longer,
41 bgp_show_type_community_all,
42 bgp_show_type_community,
43 bgp_show_type_community_exact,
44 bgp_show_type_community_list,
45 bgp_show_type_community_list_exact,
46 bgp_show_type_lcommunity_all,
47 bgp_show_type_lcommunity,
48 bgp_show_type_lcommunity_list,
49 bgp_show_type_flap_statistics,
50 bgp_show_type_flap_neighbor,
51 bgp_show_type_dampend_paths,
dba3c1d3
PG		 52 bgp_show_type_damp_neighbor,
53 bgp_show_type_detail,
b2f0fa55
PG		 54};
55
6392aaa6
PM		 56enum bgp_show_adj_route_type {
57 bgp_show_adj_route_advertised,
58 bgp_show_adj_route_received,
59 bgp_show_adj_route_filtered,
60};
61
b2f0fa55 62
d62a17ae 63#define BGP_SHOW_SCODE_HEADER \
9df8b37c 64 "Status codes: s suppressed, d damped, " \
d62a17ae 65 "h history, * valid, > best, = multipath,\n" \
9df8b37c
PZ		 66 " i internal, r RIB-failure, S Stale, R Removed\n"
67#define BGP_SHOW_OCODE_HEADER "Origin codes: i - IGP, e - EGP, ? - incomplete\n\n"
68#define BGP_SHOW_NCODE_HEADER "Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self\n"
181039f3 69#define BGP_SHOW_HEADER " Network Next Hop Metric LocPrf Weight Path\n"
3f9c7369 70
b57ba6d2
MK		 71/* Maximum number of labels we can process or send with a prefix. We
72 * really do only 1 for MPLS (BGP-LU) but we can do 2 for EVPN-VxLAN.
73 */
74#define BGP_MAX_LABELS 2
75
513386b5
DA		 76/* Error codes for handling NLRI */
77#define BGP_NLRI_PARSE_OK 0
78#define BGP_NLRI_PARSE_ERROR_PREFIX_OVERFLOW -1
79#define BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW -2
80#define BGP_NLRI_PARSE_ERROR_PREFIX_LENGTH -3
81#define BGP_NLRI_PARSE_ERROR_PACKET_LENGTH -4
82#define BGP_NLRI_PARSE_ERROR_LABEL_LENGTH -5
83#define BGP_NLRI_PARSE_ERROR_EVPN_MISSING_TYPE -6
84#define BGP_NLRI_PARSE_ERROR_EVPN_TYPE2_SIZE -7
85#define BGP_NLRI_PARSE_ERROR_EVPN_TYPE3_SIZE -8
86#define BGP_NLRI_PARSE_ERROR_EVPN_TYPE4_SIZE -9
87#define BGP_NLRI_PARSE_ERROR_EVPN_TYPE5_SIZE -10
88#define BGP_NLRI_PARSE_ERROR_FLOWSPEC_IPV6_NOT_SUPPORTED -11
89#define BGP_NLRI_PARSE_ERROR_FLOWSPEC_NLRI_SIZELIMIT -12
90#define BGP_NLRI_PARSE_ERROR_FLOWSPEC_BAD_FORMAT -13
91#define BGP_NLRI_PARSE_ERROR_ADDRESS_FAMILY -14
92#define BGP_NLRI_PARSE_ERROR -32
93
4b7e6066 94/* Ancillary information to struct bgp_path_info,
fb982c25
PJ		 95 * used for uncommonly used data (aggregation, MPLS, etc.)
96 * and lazily allocated to save memory.
97 */
4b7e6066 98struct bgp_path_info_extra {
d62a17ae 99 /* Pointer to dampening structure. */
100 struct bgp_damp_info *damp_info;
fb982c25 101
d62a17ae 102 /* This route is suppressed with aggregation. */
103 int suppress;
fb982c25 104
d62a17ae 105 /* Nexthop reachability check. */
d7c0a89a 106 uint32_t igpmetric;
fb982c25 107
b57ba6d2
MK		 108 /* MPLS label(s) - VNI(s) for EVPN-VxLAN */
109 mpls_label_t label[BGP_MAX_LABELS];
d7c0a89a 110 uint32_t num_labels;
342dd0c6 111
65efcfce 112#if ENABLE_BGP_VNC
d62a17ae 113 union {
114
115 struct {
116 void *rfapi_handle; /* export: NVE advertising this
117 route */
118 struct list *local_nexthops; /* optional, for static
119 routes */
120 } export;
121
122 struct {
123 struct thread *timer;
124 void *hme; /* encap monitor, if this is a VPN route */
125 struct prefix_rd
126 rd; /* import: route's route-distinguisher */
d7c0a89a 127 uint8_t un_family; /* family of cached un address, 0 if
d62a17ae 128 unset */
129 union {
130 struct in_addr addr4;
131 struct in6_addr addr6;
132 } un; /* cached un address */
133 time_t create_time;
996c9314
LB		 134 struct prefix aux_prefix; /* AFI_L2VPN: the IP addr,
135 if family set */
d62a17ae 136 } import;
137
138 } vnc;
65efcfce 139#endif
128ea8ab 140
d62a17ae 141 /* For imported routes into a VNI (or VRF), this points to the parent.
142 */
143 void *parent;
ddb5b488
PZ		 144
145 /*
146 * Some tunnelish parameters follow. Maybe consolidate into an
147 * internal tunnel structure?
148 */
149
150 /*
151 * Original bgp instance for imported routes. Needed for:
152 * 1. Find all routes from a specific vrf for deletion
153 * 2. vrf context of original nexthop
154 *
155 * Store pointer to bgp instance rather than bgp->vrf_id because
156 * bgp->vrf_id is not always valid (or may change?).
157 *
158 * Set to NULL if route is not imported from another bgp instance.
159 */
160 struct bgp *bgp_orig;
161
162 /*
163 * Nexthop in context of original bgp instance. Needed
164 * for label resolution of core mpls routes exported to a vrf.
165 * Set nexthop_orig.family to 0 if not valid.
166 */
167 struct prefix nexthop_orig;
ce3c0614 168 /* presence of FS pbr firewall based entry */
c26edcda 169 struct list *bgp_fs_pbr;
ce3c0614
PG		 170 /* presence of FS pbr iprule based entry */
171 struct list *bgp_fs_iprule;
fb982c25
PJ		 172};
173
4b7e6066 174struct bgp_path_info {
d62a17ae 175 /* For linked list. */
4b7e6066
DS		 176 struct bgp_path_info *next;
177 struct bgp_path_info *prev;
d62a17ae 178
179 /* For nexthop linked list */
4b7e6066 180 LIST_ENTRY(bgp_path_info) nh_thread;
d62a17ae 181
182 /* Back pointer to the prefix node */
183 struct bgp_node *net;
184
185 /* Back pointer to the nexthop structure */
186 struct bgp_nexthop_cache *nexthop;
fb018d25 187
d62a17ae 188 /* Peer structure. */
189 struct peer *peer;
fb018d25 190
d62a17ae 191 /* Attribute structure. */
192 struct attr *attr;
fb018d25 193
d62a17ae 194 /* Extra information */
4b7e6066 195 struct bgp_path_info_extra *extra;
fb018d25 196
cbdfbaa5 197
d62a17ae 198 /* Multipath information */
4b7e6066 199 struct bgp_path_info_mpath *mpath;
de8d5dff 200
d62a17ae 201 /* Uptime. */
202 time_t uptime;
de8d5dff 203
d62a17ae 204 /* reference count */
205 int lock;
cbdfbaa5 206
d62a17ae 207 /* BGP information status. */
d7c0a89a 208 uint16_t flags;
1defdda8
DS		 209#define BGP_PATH_IGP_CHANGED (1 << 0)
210#define BGP_PATH_DAMPED (1 << 1)
211#define BGP_PATH_HISTORY (1 << 2)
212#define BGP_PATH_SELECTED (1 << 3)
213#define BGP_PATH_VALID (1 << 4)
214#define BGP_PATH_ATTR_CHANGED (1 << 5)
215#define BGP_PATH_DMED_CHECK (1 << 6)
216#define BGP_PATH_DMED_SELECTED (1 << 7)
217#define BGP_PATH_STALE (1 << 8)
218#define BGP_PATH_REMOVED (1 << 9)
219#define BGP_PATH_COUNTED (1 << 10)
220#define BGP_PATH_MULTIPATH (1 << 11)
221#define BGP_PATH_MULTIPATH_CHG (1 << 12)
222#define BGP_PATH_RIB_ATTR_CHG (1 << 13)
223#define BGP_PATH_ANNC_NH_SELF (1 << 14)
718e3744 224
d62a17ae 225 /* BGP route type. This can be static, RIP, OSPF, BGP etc. */
d7c0a89a 226 uint8_t type;
cbdfbaa5 227
d62a17ae 228 /* When above type is BGP. This sub type specify BGP sub type
229 information. */
d7c0a89a 230 uint8_t sub_type;
cbdfbaa5
PJ		 231#define BGP_ROUTE_NORMAL 0
232#define BGP_ROUTE_STATIC 1
233#define BGP_ROUTE_AGGREGATE 2
234#define BGP_ROUTE_REDISTRIBUTE 3
65efcfce
LB		 235#ifdef ENABLE_BGP_VNC
236# define BGP_ROUTE_RFP 4
237#endif
ddb5b488 238#define BGP_ROUTE_IMPORTED 5 /* from another bgp instance/safi */
7c8ff89e 239
d7c0a89a 240 unsigned short instance;
a82478b9 241
d62a17ae 242 /* Addpath identifiers */
d7c0a89a 243 uint32_t addpath_rx_id;
dcc68b5e 244 struct bgp_addpath_info_data tx_addpath;
718e3744 245};
246
128ea8ab 247/* Structure used in BGP path selection */
4b7e6066
DS		 248struct bgp_path_info_pair {
249 struct bgp_path_info *old;
250 struct bgp_path_info *new;
128ea8ab 251};
252
718e3744 253/* BGP static route configuration. */
d62a17ae 254struct bgp_static {
255 /* Backdoor configuration. */
256 int backdoor;
718e3744 257
d62a17ae 258 /* Label index configuration; applies to LU prefixes. */
d7c0a89a 259 uint32_t label_index;
1b6d5c7e
VV		 260#define BGP_INVALID_LABEL_INDEX 0xFFFFFFFF
261
d62a17ae 262 /* Import check status. */
d7c0a89a 263 uint8_t valid;
718e3744 264
d62a17ae 265 /* IGP metric. */
d7c0a89a 266 uint32_t igpmetric;
718e3744 267
d62a17ae 268 /* IGP nexthop. */
269 struct in_addr igpnexthop;
718e3744 270
d62a17ae 271 /* Atomic set reference count (ie cause of pathlimit) */
d7c0a89a 272 uint32_t atomic;
718e3744 273
d62a17ae 274 /* BGP redistribute route-map. */
275 struct {
276 char *name;
277 struct route_map *map;
278 } rmap;
137446f9 279
d62a17ae 280 /* Route Distinguisher */
281 struct prefix_rd prd;
684a7227 282
d62a17ae 283 /* MPLS label. */
284 mpls_label_t label;
285
286 /* EVPN */
287 struct eth_segment_id *eth_s_id;
288 struct ethaddr *router_mac;
289 uint16_t encap_tunneltype;
290 struct prefix gatewayIp;
718e3744 291};
292
e00d8008
NT		 293/* Aggreagete address:
294 *
295 * advertise-map Set condition to advertise attribute
296 * as-set Generate AS set path information
297 * attribute-map Set attributes of aggregate
298 * route-map Set parameters of aggregate
299 * summary-only Filter more specific routes from updates
300 * suppress-map Conditionally filter more specific routes from updates
301 * <cr>
302 */
303struct bgp_aggregate {
304 /* Summary-only flag. */
305 uint8_t summary_only;
306
307 /* AS set generation. */
308 uint8_t as_set;
309
310 /* Route-map for aggregated route. */
311 struct route_map *map;
312
313 /* Suppress-count. */
314 unsigned long count;
315
316 /* Count of routes of origin type incomplete under this aggregate. */
317 unsigned long incomplete_origin_count;
318
319 /* Count of routes of origin type egp under this aggregate. */
320 unsigned long egp_origin_count;
321
322 /* Hash containing the communities of all the
323 * routes under this aggregate.
324 */
325 struct hash *community_hash;
326
327 /* Hash containing the extended communities of all the
328 * routes under this aggregate.
329 */
330 struct hash *ecommunity_hash;
331
332 /* Hash containing the large communities of all the
333 * routes under this aggregate.
334 */
335 struct hash *lcommunity_hash;
336
337 /* Hash containing the AS-Path of all the
338 * routes under this aggregate.
339 */
340 struct hash *aspath_hash;
341
342 /* Aggregate route's community. */
343 struct community *community;
344
345 /* Aggregate route's extended community. */
346 struct ecommunity *ecommunity;
347
348 /* Aggregate route's large community. */
349 struct lcommunity *lcommunity;
350
351 /* Aggregate route's as-path. */
352 struct aspath *aspath;
353
354 /* SAFI configuration. */
355 safi_t safi;
356};
357
d62a17ae 358#define BGP_NEXTHOP_AFI_FROM_NHLEN(nhlen) \
359 ((nhlen) < IPV4_MAX_BYTELEN \
360 ? 0 \
361 : ((nhlen) < IPV6_MAX_BYTELEN ? AFI_IP : AFI_IP6))
fe3ca08f 362
d62a17ae 363#define BGP_ATTR_NEXTHOP_AFI_IP6(attr) \
364 (!CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) \
dc94fe42
RW		 365 && ((attr)->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL \
366 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL \
367 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL \
368 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL))
1defdda8
DS		 369#define BGP_PATH_COUNTABLE(BI) \
370 (!CHECK_FLAG((BI)->flags, BGP_PATH_HISTORY) \
371 && !CHECK_FLAG((BI)->flags, BGP_PATH_REMOVED))
80e0ad24 372
1a392d46 373/* Flags which indicate a route is unuseable in some form */
1defdda8
DS		 374#define BGP_PATH_UNUSEABLE \
375 (BGP_PATH_HISTORY | BGP_PATH_DAMPED | BGP_PATH_REMOVED)
1a392d46
PJ		 376/* Macro to check BGP information is alive or not. Sadly,
377 * not equivalent to just checking previous, because of the
378 * sense of the additional VALID flag.
379 */
1defdda8
DS		 380#define BGP_PATH_HOLDDOWN(BI) \
381 (!CHECK_FLAG((BI)->flags, BGP_PATH_VALID) \
382 || CHECK_FLAG((BI)->flags, BGP_PATH_UNUSEABLE))
1a392d46 383
718e3744 384#define DISTRIBUTE_IN_NAME(F) ((F)->dlist[FILTER_IN].name)
385#define DISTRIBUTE_IN(F) ((F)->dlist[FILTER_IN].alist)
386#define DISTRIBUTE_OUT_NAME(F) ((F)->dlist[FILTER_OUT].name)
387#define DISTRIBUTE_OUT(F) ((F)->dlist[FILTER_OUT].alist)
388
389#define PREFIX_LIST_IN_NAME(F) ((F)->plist[FILTER_IN].name)
390#define PREFIX_LIST_IN(F) ((F)->plist[FILTER_IN].plist)
391#define PREFIX_LIST_OUT_NAME(F) ((F)->plist[FILTER_OUT].name)
392#define PREFIX_LIST_OUT(F) ((F)->plist[FILTER_OUT].plist)
393
394#define FILTER_LIST_IN_NAME(F) ((F)->aslist[FILTER_IN].name)
395#define FILTER_LIST_IN(F) ((F)->aslist[FILTER_IN].aslist)
396#define FILTER_LIST_OUT_NAME(F) ((F)->aslist[FILTER_OUT].name)
397#define FILTER_LIST_OUT(F) ((F)->aslist[FILTER_OUT].aslist)
398
fee0f4c6 399#define ROUTE_MAP_IN_NAME(F) ((F)->map[RMAP_IN].name)
400#define ROUTE_MAP_IN(F) ((F)->map[RMAP_IN].map)
401#define ROUTE_MAP_OUT_NAME(F) ((F)->map[RMAP_OUT].name)
402#define ROUTE_MAP_OUT(F) ((F)->map[RMAP_OUT].map)
403
718e3744 404#define UNSUPPRESS_MAP_NAME(F) ((F)->usmap.name)
405#define UNSUPPRESS_MAP(F) ((F)->usmap.map)
406
2ec1e66f
DW		 407/* path PREFIX (addpath rxid NUMBER) */
408#define PATH_ADDPATH_STR_BUFFER PREFIX2STR_BUFFER + 32
409
360660c6
DS		 410enum bgp_path_type {
411 BGP_PATH_SHOW_ALL,
412 BGP_PATH_SHOW_BESTPATH,
413 BGP_PATH_SHOW_MULTIPATH
414};
4092b06c 415
d62a17ae 416static inline void bgp_bump_version(struct bgp_node *node)
3f9c7369 417{
d62a17ae 418 node->version = bgp_table_next_version(bgp_node_table(node));
3f9c7369
DS		 419}
420
d62a17ae 421static inline int bgp_fibupd_safi(safi_t safi)
cd1964ff 422{
d62a17ae 423 if (safi == SAFI_UNICAST || safi == SAFI_MULTICAST
529efa23
PG		 424 || safi == SAFI_LABELED_UNICAST
425 || safi == SAFI_FLOWSPEC)
d62a17ae 426 return 1;
427 return 0;
cd1964ff
DS		 428}
429
0a2f9ac1 430/* Flag if the route path's family matches params. */
431static inline bool is_pi_family_matching(struct bgp_path_info *pi,
432 afi_t afi, safi_t safi)
433{
434 struct bgp_table *table;
435 struct bgp_node *rn;
436
437 rn = pi->net;
438 if (!rn)
439 return false;
440 table = bgp_node_table(rn);
441 if (table &&
442 table->afi == afi &&
443 table->safi == safi)
444 return true;
445 return false;
446}
447
718e3744 448/* Prototypes. */
40381db7 449extern void bgp_rib_remove(struct bgp_node *rn, struct bgp_path_info *pi,
db0e1937 450 struct peer *peer, afi_t afi, safi_t safi);
d62a17ae 451extern void bgp_process_queue_init(void);
452extern void bgp_route_init(void);
453extern void bgp_route_finish(void);
454extern void bgp_cleanup_routes(struct bgp *);
455extern void bgp_announce_route(struct peer *, afi_t, safi_t);
3f9c7369 456extern void bgp_stop_announce_route_timer(struct peer_af *paf);
d62a17ae 457extern void bgp_announce_route_all(struct peer *);
458extern void bgp_default_originate(struct peer *, afi_t, safi_t, int);
459extern void bgp_soft_reconfig_in(struct peer *, afi_t, safi_t);
460extern void bgp_clear_route(struct peer *, afi_t, safi_t);
461extern void bgp_clear_route_all(struct peer *);
462extern void bgp_clear_adj_in(struct peer *, afi_t, safi_t);
463extern void bgp_clear_stale_route(struct peer *, afi_t, safi_t);
9dac9fc8
DA		 464extern int bgp_outbound_policy_exists(struct peer *, struct bgp_filter *);
465extern int bgp_inbound_policy_exists(struct peer *, struct bgp_filter *);
d62a17ae 466
467extern struct bgp_node *bgp_afi_node_get(struct bgp_table *table, afi_t afi,
468 safi_t safi, struct prefix *p,
469 struct prefix_rd *prd);
18ee8310
DS		 470extern struct bgp_path_info *bgp_path_info_lock(struct bgp_path_info *path);
471extern struct bgp_path_info *bgp_path_info_unlock(struct bgp_path_info *path);
40381db7 472extern void bgp_path_info_add(struct bgp_node *rn, struct bgp_path_info *pi);
a2e219fe 473extern void bgp_path_info_extra_free(struct bgp_path_info_extra **extra);
40381db7
DS		 474extern void bgp_path_info_reap(struct bgp_node *rn, struct bgp_path_info *pi);
475extern void bgp_path_info_delete(struct bgp_node *rn, struct bgp_path_info *pi);
4b7e6066 476extern struct bgp_path_info_extra *
18ee8310
DS		 477bgp_path_info_extra_get(struct bgp_path_info *path);
478extern void bgp_path_info_set_flag(struct bgp_node *rn,
479 struct bgp_path_info *path, uint32_t flag);
480extern void bgp_path_info_unset_flag(struct bgp_node *rn,
481 struct bgp_path_info *path, uint32_t flag);
40381db7 482extern void bgp_path_info_path_with_addpath_rx_str(struct bgp_path_info *pi,
18ee8310 483 char *buf);
d62a17ae 484
485extern int bgp_nlri_parse_ip(struct peer *, struct attr *, struct bgp_nlri *);
486
487extern int bgp_maximum_prefix_overflow(struct peer *, afi_t, safi_t, int);
488
9de1f7ff
DS		 489extern void bgp_redistribute_add(struct bgp *bgp, struct prefix *p,
490 const union g_addr *nexthop, ifindex_t ifindex,
491 enum nexthop_types_t nhtype, uint32_t metric,
d7c0a89a 492 uint8_t type, unsigned short instance,
9de1f7ff 493 route_tag_t tag);
d7c0a89a
QY		 494extern void bgp_redistribute_delete(struct bgp *, struct prefix *, uint8_t,
495 unsigned short);
496extern void bgp_redistribute_withdraw(struct bgp *, afi_t, int, unsigned short);
d62a17ae 497
498extern void bgp_static_add(struct bgp *);
499extern void bgp_static_delete(struct bgp *);
500extern void bgp_static_redo_import_check(struct bgp *);
501extern void bgp_purge_static_redist_routes(struct bgp *bgp);
502extern void bgp_static_update(struct bgp *, struct prefix *,
503 struct bgp_static *, afi_t, safi_t);
504extern void bgp_static_withdraw(struct bgp *, struct prefix *, afi_t, safi_t);
505
506extern int bgp_static_set_safi(afi_t afi, safi_t safi, struct vty *vty,
507 const char *, const char *, const char *,
508 const char *, int, const char *, const char *,
509 const char *, const char *);
510
511extern int bgp_static_unset_safi(afi_t afi, safi_t safi, struct vty *,
512 const char *, const char *, const char *, int,
513 const char *, const char *, const char *);
718e3744 514
94f2b392 515/* this is primarily for MPLS-VPN */
d7c0a89a 516extern int bgp_update(struct peer *, struct prefix *, uint32_t, struct attr *,
d62a17ae 517 afi_t, safi_t, int, int, struct prefix_rd *,
d7c0a89a
QY		 518 mpls_label_t *, uint32_t, int, struct bgp_route_evpn *);
519extern int bgp_withdraw(struct peer *, struct prefix *, uint32_t, struct attr *,
520 afi_t, safi_t, int, int, struct prefix_rd *,
521 mpls_label_t *, uint32_t, struct bgp_route_evpn *);
718e3744 522
94f2b392 523/* for bgp_nexthop and bgp_damp */
d62a17ae 524extern void bgp_process(struct bgp *, struct bgp_node *, afi_t, safi_t);
cb1faec9
DS		 525
526/*
527 * Add an end-of-initial-update marker to the process queue. This is just a
528 * queue element with NULL bgp node.
529 */
d62a17ae 530extern void bgp_add_eoiu_mark(struct bgp *);
60466a63
QY		 531extern void bgp_config_write_table_map(struct vty *, struct bgp *, afi_t,
532 safi_t);
2b791107 533extern void bgp_config_write_network(struct vty *, struct bgp *, afi_t, safi_t);
60466a63
QY		 534extern void bgp_config_write_distance(struct vty *, struct bgp *, afi_t,
535 safi_t);
d62a17ae 536
4b7e6066
DS		 537extern void bgp_aggregate_increment(struct bgp *bgp, struct prefix *p,
538 struct bgp_path_info *path, afi_t afi,
539 safi_t safi);
540extern void bgp_aggregate_decrement(struct bgp *bgp, struct prefix *p,
541 struct bgp_path_info *path, afi_t afi,
542 safi_t safi);
d62a17ae 543
4b7e6066
DS		 544extern uint8_t bgp_distance_apply(struct prefix *p, struct bgp_path_info *path,
545 afi_t afi, safi_t safi, struct bgp *bgp);
d62a17ae 546
547extern afi_t bgp_node_afi(struct vty *);
548extern safi_t bgp_node_safi(struct vty *);
549
4b7e6066
DS		 550extern struct bgp_path_info *info_make(int type, int sub_type,
551 unsigned short instance,
552 struct peer *peer, struct attr *attr,
553 struct bgp_node *rn);
554
555extern void route_vty_out(struct vty *vty, struct prefix *p,
556 struct bgp_path_info *path, int display, safi_t safi,
557 json_object *json_paths);
558extern void route_vty_out_tag(struct vty *vty, struct prefix *p,
559 struct bgp_path_info *path, int display,
560 safi_t safi, json_object *json);
94d4c685
DS		 561extern void route_vty_out_tmp(struct vty *vty, struct prefix *p,
562 struct attr *attr, safi_t safi, bool use_json,
563 json_object *json_ar);
d62a17ae 564extern void route_vty_out_overlay(struct vty *vty, struct prefix *p,
9b6d8fcf 565 struct bgp_path_info *path, int display,
d62a17ae 566 json_object *json);
567
568extern int subgroup_process_announce_selected(struct update_subgroup *subgrp,
4b7e6066 569 struct bgp_path_info *selected,
d62a17ae 570 struct bgp_node *rn,
d7c0a89a 571 uint32_t addpath_tx_id);
3f9c7369 572
4b7e6066 573extern int subgroup_announce_check(struct bgp_node *rn,
40381db7 574 struct bgp_path_info *pi,
3f9c7369
DS		 575 struct update_subgroup *subgrp,
576 struct prefix *p, struct attr *attr);
577
d62a17ae 578extern void bgp_peer_clear_node_queue_drain_immediate(struct peer *peer);
579extern void bgp_process_queues_drain_immediate(void);
bb86c601 580
65efcfce 581/* for encap/vpn */
d62a17ae 582extern struct bgp_node *bgp_afi_node_lookup(struct bgp_table *table, afi_t afi,
583 safi_t safi, struct prefix *p,
584 struct prefix_rd *prd);
18ee8310
DS		 585extern void bgp_path_info_restore(struct bgp_node *rn,
586 struct bgp_path_info *path);
587
588extern int bgp_path_info_cmp_compatible(struct bgp *bgp,
589 struct bgp_path_info *new,
590 struct bgp_path_info *exist,
591 char *pfx_buf, afi_t afi, safi_t safi);
7f323236 592extern void bgp_attr_add_gshut_community(struct attr *attr);
d62a17ae 593
594extern void bgp_best_selection(struct bgp *bgp, struct bgp_node *rn,
595 struct bgp_maxpaths_cfg *mpath_cfg,
4b7e6066 596 struct bgp_path_info_pair *result, afi_t afi,
d62a17ae 597 safi_t safi);
598extern void bgp_zebra_clear_route_change_flags(struct bgp_node *rn);
599extern int bgp_zebra_has_route_changed(struct bgp_node *rn,
4b7e6066 600 struct bgp_path_info *selected);
d62a17ae 601
602extern void route_vty_out_detail_header(struct vty *vty, struct bgp *bgp,
603 struct bgp_node *rn,
604 struct prefix_rd *prd, afi_t afi,
605 safi_t safi, json_object *json);
606extern void route_vty_out_detail(struct vty *vty, struct bgp *bgp,
9b6d8fcf 607 struct prefix *p, struct bgp_path_info *path,
d62a17ae 608 afi_t afi, safi_t safi,
609 json_object *json_paths);
1ae44dfc
LB		 610extern int bgp_show_table_rd(struct vty *vty, struct bgp *bgp, safi_t safi,
611 struct bgp_table *table, struct prefix_rd *prd,
612 enum bgp_show_type type, void *output_arg,
9f049418 613 bool use_json);
00d252cb 614#endif /* _QUAGGA_BGP_ROUTE_H */
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