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Merge pull request #4654 from manuhalo/fix_bgp_lbp_warn
[mirror_frr.git] / bgpd / bgp_route.h
CommitLineData
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
4a11bf2c
DL		 24#include <stdbool.h>
25
26#include "hook.h"
fb018d25 27#include "queue.h"
74489921 28#include "nexthop.h"
200df115 29#include "bgp_table.h"
dcc68b5e 30#include "bgp_addpath_types.h"
200df115 31
fb018d25 32struct bgp_nexthop_cache;
7ef5a232 33struct bgp_route_evpn;
fb018d25 34
d62a17ae 35enum bgp_show_type {
36 bgp_show_type_normal,
37 bgp_show_type_regexp,
38 bgp_show_type_prefix_list,
39 bgp_show_type_filter_list,
40 bgp_show_type_route_map,
41 bgp_show_type_neighbor,
42 bgp_show_type_cidr_only,
43 bgp_show_type_prefix_longer,
44 bgp_show_type_community_all,
45 bgp_show_type_community,
46 bgp_show_type_community_exact,
47 bgp_show_type_community_list,
48 bgp_show_type_community_list_exact,
49 bgp_show_type_lcommunity_all,
50 bgp_show_type_lcommunity,
36a206db 51 bgp_show_type_lcommunity_exact,
d62a17ae 52 bgp_show_type_lcommunity_list,
36a206db 53 bgp_show_type_lcommunity_list_exact,
d62a17ae 54 bgp_show_type_flap_statistics,
55 bgp_show_type_flap_neighbor,
56 bgp_show_type_dampend_paths,
dba3c1d3
PG		 57 bgp_show_type_damp_neighbor,
58 bgp_show_type_detail,
b2f0fa55
PG		 59};
60
6392aaa6
PM		 61enum bgp_show_adj_route_type {
62 bgp_show_adj_route_advertised,
63 bgp_show_adj_route_received,
64 bgp_show_adj_route_filtered,
65};
66
b2f0fa55 67
d62a17ae 68#define BGP_SHOW_SCODE_HEADER \
9df8b37c 69 "Status codes: s suppressed, d damped, " \
d62a17ae 70 "h history, * valid, > best, = multipath,\n" \
9df8b37c
PZ		 71 " i internal, r RIB-failure, S Stale, R Removed\n"
72#define BGP_SHOW_OCODE_HEADER "Origin codes: i - IGP, e - EGP, ? - incomplete\n\n"
73#define BGP_SHOW_NCODE_HEADER "Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self\n"
181039f3 74#define BGP_SHOW_HEADER " Network Next Hop Metric LocPrf Weight Path\n"
3f9c7369 75
b57ba6d2
MK		 76/* Maximum number of labels we can process or send with a prefix. We
77 * really do only 1 for MPLS (BGP-LU) but we can do 2 for EVPN-VxLAN.
78 */
79#define BGP_MAX_LABELS 2
80
513386b5
DA		 81/* Error codes for handling NLRI */
82#define BGP_NLRI_PARSE_OK 0
83#define BGP_NLRI_PARSE_ERROR_PREFIX_OVERFLOW -1
84#define BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW -2
85#define BGP_NLRI_PARSE_ERROR_PREFIX_LENGTH -3
86#define BGP_NLRI_PARSE_ERROR_PACKET_LENGTH -4
87#define BGP_NLRI_PARSE_ERROR_LABEL_LENGTH -5
88#define BGP_NLRI_PARSE_ERROR_EVPN_MISSING_TYPE -6
89#define BGP_NLRI_PARSE_ERROR_EVPN_TYPE2_SIZE -7
90#define BGP_NLRI_PARSE_ERROR_EVPN_TYPE3_SIZE -8
91#define BGP_NLRI_PARSE_ERROR_EVPN_TYPE4_SIZE -9
92#define BGP_NLRI_PARSE_ERROR_EVPN_TYPE5_SIZE -10
93#define BGP_NLRI_PARSE_ERROR_FLOWSPEC_IPV6_NOT_SUPPORTED -11
94#define BGP_NLRI_PARSE_ERROR_FLOWSPEC_NLRI_SIZELIMIT -12
95#define BGP_NLRI_PARSE_ERROR_FLOWSPEC_BAD_FORMAT -13
96#define BGP_NLRI_PARSE_ERROR_ADDRESS_FAMILY -14
97#define BGP_NLRI_PARSE_ERROR -32
98
4b7e6066 99/* Ancillary information to struct bgp_path_info,
fb982c25
PJ		 100 * used for uncommonly used data (aggregation, MPLS, etc.)
101 * and lazily allocated to save memory.
102 */
4b7e6066 103struct bgp_path_info_extra {
d62a17ae 104 /* Pointer to dampening structure. */
105 struct bgp_damp_info *damp_info;
fb982c25 106
d62a17ae 107 /* This route is suppressed with aggregation. */
108 int suppress;
fb982c25 109
d62a17ae 110 /* Nexthop reachability check. */
d7c0a89a 111 uint32_t igpmetric;
fb982c25 112
b57ba6d2
MK		 113 /* MPLS label(s) - VNI(s) for EVPN-VxLAN */
114 mpls_label_t label[BGP_MAX_LABELS];
d7c0a89a 115 uint32_t num_labels;
342dd0c6 116
65efcfce 117#if ENABLE_BGP_VNC
d62a17ae 118 union {
119
120 struct {
121 void *rfapi_handle; /* export: NVE advertising this
122 route */
123 struct list *local_nexthops; /* optional, for static
124 routes */
125 } export;
126
127 struct {
128 struct thread *timer;
129 void *hme; /* encap monitor, if this is a VPN route */
130 struct prefix_rd
131 rd; /* import: route's route-distinguisher */
d7c0a89a 132 uint8_t un_family; /* family of cached un address, 0 if
d62a17ae 133 unset */
134 union {
135 struct in_addr addr4;
136 struct in6_addr addr6;
137 } un; /* cached un address */
138 time_t create_time;
996c9314
LB		 139 struct prefix aux_prefix; /* AFI_L2VPN: the IP addr,
140 if family set */
d62a17ae 141 } import;
142
143 } vnc;
65efcfce 144#endif
128ea8ab 145
d62a17ae 146 /* For imported routes into a VNI (or VRF), this points to the parent.
147 */
148 void *parent;
ddb5b488
PZ		 149
150 /*
151 * Some tunnelish parameters follow. Maybe consolidate into an
152 * internal tunnel structure?
153 */
154
155 /*
156 * Original bgp instance for imported routes. Needed for:
157 * 1. Find all routes from a specific vrf for deletion
158 * 2. vrf context of original nexthop
159 *
160 * Store pointer to bgp instance rather than bgp->vrf_id because
161 * bgp->vrf_id is not always valid (or may change?).
162 *
163 * Set to NULL if route is not imported from another bgp instance.
164 */
165 struct bgp *bgp_orig;
166
167 /*
168 * Nexthop in context of original bgp instance. Needed
169 * for label resolution of core mpls routes exported to a vrf.
170 * Set nexthop_orig.family to 0 if not valid.
171 */
172 struct prefix nexthop_orig;
ce3c0614 173 /* presence of FS pbr firewall based entry */
c26edcda 174 struct list *bgp_fs_pbr;
ce3c0614
PG		 175 /* presence of FS pbr iprule based entry */
176 struct list *bgp_fs_iprule;
fb982c25
PJ		 177};
178
4b7e6066 179struct bgp_path_info {
d62a17ae 180 /* For linked list. */
4b7e6066
DS		 181 struct bgp_path_info *next;
182 struct bgp_path_info *prev;
d62a17ae 183
184 /* For nexthop linked list */
4b7e6066 185 LIST_ENTRY(bgp_path_info) nh_thread;
d62a17ae 186
187 /* Back pointer to the prefix node */
188 struct bgp_node *net;
189
190 /* Back pointer to the nexthop structure */
191 struct bgp_nexthop_cache *nexthop;
fb018d25 192
d62a17ae 193 /* Peer structure. */
194 struct peer *peer;
fb018d25 195
d62a17ae 196 /* Attribute structure. */
197 struct attr *attr;
fb018d25 198
d62a17ae 199 /* Extra information */
4b7e6066 200 struct bgp_path_info_extra *extra;
fb018d25 201
cbdfbaa5 202
d62a17ae 203 /* Multipath information */
4b7e6066 204 struct bgp_path_info_mpath *mpath;
de8d5dff 205
d62a17ae 206 /* Uptime. */
207 time_t uptime;
de8d5dff 208
d62a17ae 209 /* reference count */
210 int lock;
cbdfbaa5 211
d62a17ae 212 /* BGP information status. */
d7c0a89a 213 uint16_t flags;
1defdda8
DS		 214#define BGP_PATH_IGP_CHANGED (1 << 0)
215#define BGP_PATH_DAMPED (1 << 1)
216#define BGP_PATH_HISTORY (1 << 2)
217#define BGP_PATH_SELECTED (1 << 3)
218#define BGP_PATH_VALID (1 << 4)
219#define BGP_PATH_ATTR_CHANGED (1 << 5)
220#define BGP_PATH_DMED_CHECK (1 << 6)
221#define BGP_PATH_DMED_SELECTED (1 << 7)
222#define BGP_PATH_STALE (1 << 8)
223#define BGP_PATH_REMOVED (1 << 9)
224#define BGP_PATH_COUNTED (1 << 10)
225#define BGP_PATH_MULTIPATH (1 << 11)
226#define BGP_PATH_MULTIPATH_CHG (1 << 12)
227#define BGP_PATH_RIB_ATTR_CHG (1 << 13)
228#define BGP_PATH_ANNC_NH_SELF (1 << 14)
718e3744 229
d62a17ae 230 /* BGP route type. This can be static, RIP, OSPF, BGP etc. */
d7c0a89a 231 uint8_t type;
cbdfbaa5 232
d62a17ae 233 /* When above type is BGP. This sub type specify BGP sub type
234 information. */
d7c0a89a 235 uint8_t sub_type;
cbdfbaa5
PJ		 236#define BGP_ROUTE_NORMAL 0
237#define BGP_ROUTE_STATIC 1
238#define BGP_ROUTE_AGGREGATE 2
239#define BGP_ROUTE_REDISTRIBUTE 3
65efcfce
LB		 240#ifdef ENABLE_BGP_VNC
241# define BGP_ROUTE_RFP 4
242#endif
ddb5b488 243#define BGP_ROUTE_IMPORTED 5 /* from another bgp instance/safi */
7c8ff89e 244
d7c0a89a 245 unsigned short instance;
a82478b9 246
d62a17ae 247 /* Addpath identifiers */
d7c0a89a 248 uint32_t addpath_rx_id;
dcc68b5e 249 struct bgp_addpath_info_data tx_addpath;
718e3744 250};
251
128ea8ab 252/* Structure used in BGP path selection */
4b7e6066
DS		 253struct bgp_path_info_pair {
254 struct bgp_path_info *old;
255 struct bgp_path_info *new;
128ea8ab 256};
257
718e3744 258/* BGP static route configuration. */
d62a17ae 259struct bgp_static {
260 /* Backdoor configuration. */
261 int backdoor;
718e3744 262
d62a17ae 263 /* Label index configuration; applies to LU prefixes. */
d7c0a89a 264 uint32_t label_index;
1b6d5c7e
VV		 265#define BGP_INVALID_LABEL_INDEX 0xFFFFFFFF
266
d62a17ae 267 /* Import check status. */
d7c0a89a 268 uint8_t valid;
718e3744 269
d62a17ae 270 /* IGP metric. */
d7c0a89a 271 uint32_t igpmetric;
718e3744 272
d62a17ae 273 /* IGP nexthop. */
274 struct in_addr igpnexthop;
718e3744 275
d62a17ae 276 /* Atomic set reference count (ie cause of pathlimit) */
d7c0a89a 277 uint32_t atomic;
718e3744 278
d62a17ae 279 /* BGP redistribute route-map. */
280 struct {
281 char *name;
282 struct route_map *map;
283 } rmap;
137446f9 284
d62a17ae 285 /* Route Distinguisher */
286 struct prefix_rd prd;
684a7227 287
d62a17ae 288 /* MPLS label. */
289 mpls_label_t label;
290
291 /* EVPN */
292 struct eth_segment_id *eth_s_id;
293 struct ethaddr *router_mac;
294 uint16_t encap_tunneltype;
295 struct prefix gatewayIp;
718e3744 296};
297
e00d8008
NT		 298/* Aggreagete address:
299 *
300 * advertise-map Set condition to advertise attribute
301 * as-set Generate AS set path information
302 * attribute-map Set attributes of aggregate
303 * route-map Set parameters of aggregate
304 * summary-only Filter more specific routes from updates
305 * suppress-map Conditionally filter more specific routes from updates
306 * <cr>
307 */
308struct bgp_aggregate {
309 /* Summary-only flag. */
310 uint8_t summary_only;
311
312 /* AS set generation. */
313 uint8_t as_set;
314
315 /* Route-map for aggregated route. */
316 struct route_map *map;
317
318 /* Suppress-count. */
319 unsigned long count;
320
321 /* Count of routes of origin type incomplete under this aggregate. */
322 unsigned long incomplete_origin_count;
323
324 /* Count of routes of origin type egp under this aggregate. */
325 unsigned long egp_origin_count;
326
327 /* Hash containing the communities of all the
328 * routes under this aggregate.
329 */
330 struct hash *community_hash;
331
332 /* Hash containing the extended communities of all the
333 * routes under this aggregate.
334 */
335 struct hash *ecommunity_hash;
336
337 /* Hash containing the large communities of all the
338 * routes under this aggregate.
339 */
340 struct hash *lcommunity_hash;
341
342 /* Hash containing the AS-Path of all the
343 * routes under this aggregate.
344 */
345 struct hash *aspath_hash;
346
347 /* Aggregate route's community. */
348 struct community *community;
349
350 /* Aggregate route's extended community. */
351 struct ecommunity *ecommunity;
352
353 /* Aggregate route's large community. */
354 struct lcommunity *lcommunity;
355
356 /* Aggregate route's as-path. */
357 struct aspath *aspath;
358
359 /* SAFI configuration. */
360 safi_t safi;
361};
362
d62a17ae 363#define BGP_NEXTHOP_AFI_FROM_NHLEN(nhlen) \
364 ((nhlen) < IPV4_MAX_BYTELEN \
365 ? 0 \
366 : ((nhlen) < IPV6_MAX_BYTELEN ? AFI_IP : AFI_IP6))
fe3ca08f 367
d62a17ae 368#define BGP_ATTR_NEXTHOP_AFI_IP6(attr) \
369 (!CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) \
dc94fe42
RW		 370 && ((attr)->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL \
371 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL \
372 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL \
373 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL))
1defdda8
DS		 374#define BGP_PATH_COUNTABLE(BI) \
375 (!CHECK_FLAG((BI)->flags, BGP_PATH_HISTORY) \
376 && !CHECK_FLAG((BI)->flags, BGP_PATH_REMOVED))
80e0ad24 377
1a392d46 378/* Flags which indicate a route is unuseable in some form */
1defdda8
DS		 379#define BGP_PATH_UNUSEABLE \
380 (BGP_PATH_HISTORY | BGP_PATH_DAMPED | BGP_PATH_REMOVED)
1a392d46
PJ		 381/* Macro to check BGP information is alive or not. Sadly,
382 * not equivalent to just checking previous, because of the
383 * sense of the additional VALID flag.
384 */
1defdda8
DS		 385#define BGP_PATH_HOLDDOWN(BI) \
386 (!CHECK_FLAG((BI)->flags, BGP_PATH_VALID) \
387 || CHECK_FLAG((BI)->flags, BGP_PATH_UNUSEABLE))
1a392d46 388
718e3744 389#define DISTRIBUTE_IN_NAME(F) ((F)->dlist[FILTER_IN].name)
390#define DISTRIBUTE_IN(F) ((F)->dlist[FILTER_IN].alist)
391#define DISTRIBUTE_OUT_NAME(F) ((F)->dlist[FILTER_OUT].name)
392#define DISTRIBUTE_OUT(F) ((F)->dlist[FILTER_OUT].alist)
393
394#define PREFIX_LIST_IN_NAME(F) ((F)->plist[FILTER_IN].name)
395#define PREFIX_LIST_IN(F) ((F)->plist[FILTER_IN].plist)
396#define PREFIX_LIST_OUT_NAME(F) ((F)->plist[FILTER_OUT].name)
397#define PREFIX_LIST_OUT(F) ((F)->plist[FILTER_OUT].plist)
398
399#define FILTER_LIST_IN_NAME(F) ((F)->aslist[FILTER_IN].name)
400#define FILTER_LIST_IN(F) ((F)->aslist[FILTER_IN].aslist)
401#define FILTER_LIST_OUT_NAME(F) ((F)->aslist[FILTER_OUT].name)
402#define FILTER_LIST_OUT(F) ((F)->aslist[FILTER_OUT].aslist)
403
fee0f4c6 404#define ROUTE_MAP_IN_NAME(F) ((F)->map[RMAP_IN].name)
405#define ROUTE_MAP_IN(F) ((F)->map[RMAP_IN].map)
406#define ROUTE_MAP_OUT_NAME(F) ((F)->map[RMAP_OUT].name)
407#define ROUTE_MAP_OUT(F) ((F)->map[RMAP_OUT].map)
408
718e3744 409#define UNSUPPRESS_MAP_NAME(F) ((F)->usmap.name)
410#define UNSUPPRESS_MAP(F) ((F)->usmap.map)
411
2ec1e66f
DW		 412/* path PREFIX (addpath rxid NUMBER) */
413#define PATH_ADDPATH_STR_BUFFER PREFIX2STR_BUFFER + 32
414
360660c6
DS		 415enum bgp_path_type {
416 BGP_PATH_SHOW_ALL,
417 BGP_PATH_SHOW_BESTPATH,
418 BGP_PATH_SHOW_MULTIPATH
419};
4092b06c 420
d62a17ae 421static inline void bgp_bump_version(struct bgp_node *node)
3f9c7369 422{
d62a17ae 423 node->version = bgp_table_next_version(bgp_node_table(node));
3f9c7369
DS		 424}
425
d62a17ae 426static inline int bgp_fibupd_safi(safi_t safi)
cd1964ff 427{
d62a17ae 428 if (safi == SAFI_UNICAST || safi == SAFI_MULTICAST
529efa23
PG		 429 || safi == SAFI_LABELED_UNICAST
430 || safi == SAFI_FLOWSPEC)
d62a17ae 431 return 1;
432 return 0;
cd1964ff
DS		 433}
434
0a2f9ac1 435/* Flag if the route path's family matches params. */
436static inline bool is_pi_family_matching(struct bgp_path_info *pi,
437 afi_t afi, safi_t safi)
438{
439 struct bgp_table *table;
440 struct bgp_node *rn;
441
442 rn = pi->net;
443 if (!rn)
444 return false;
445 table = bgp_node_table(rn);
446 if (table &&
447 table->afi == afi &&
448 table->safi == safi)
449 return true;
450 return false;
451}
452
4a11bf2c
DL		 453/* called before bgp_process() */
454DECLARE_HOOK(bgp_process,
455 (struct bgp *bgp, afi_t afi, safi_t safi,
456 struct bgp_node *bn, struct peer *peer, bool withdraw),
457 (bgp, afi, safi, bn, peer, withdraw))
458
718e3744 459/* Prototypes. */
40381db7 460extern void bgp_rib_remove(struct bgp_node *rn, struct bgp_path_info *pi,
db0e1937 461 struct peer *peer, afi_t afi, safi_t safi);
d62a17ae 462extern void bgp_process_queue_init(void);
463extern void bgp_route_init(void);
464extern void bgp_route_finish(void);
465extern void bgp_cleanup_routes(struct bgp *);
466extern void bgp_announce_route(struct peer *, afi_t, safi_t);
3f9c7369 467extern void bgp_stop_announce_route_timer(struct peer_af *paf);
d62a17ae 468extern void bgp_announce_route_all(struct peer *);
469extern void bgp_default_originate(struct peer *, afi_t, safi_t, int);
470extern void bgp_soft_reconfig_in(struct peer *, afi_t, safi_t);
471extern void bgp_clear_route(struct peer *, afi_t, safi_t);
472extern void bgp_clear_route_all(struct peer *);
473extern void bgp_clear_adj_in(struct peer *, afi_t, safi_t);
474extern void bgp_clear_stale_route(struct peer *, afi_t, safi_t);
9dac9fc8
DA		 475extern int bgp_outbound_policy_exists(struct peer *, struct bgp_filter *);
476extern int bgp_inbound_policy_exists(struct peer *, struct bgp_filter *);
d62a17ae 477
478extern struct bgp_node *bgp_afi_node_get(struct bgp_table *table, afi_t afi,
479 safi_t safi, struct prefix *p,
480 struct prefix_rd *prd);
18ee8310
DS		 481extern struct bgp_path_info *bgp_path_info_lock(struct bgp_path_info *path);
482extern struct bgp_path_info *bgp_path_info_unlock(struct bgp_path_info *path);
40381db7 483extern void bgp_path_info_add(struct bgp_node *rn, struct bgp_path_info *pi);
a2e219fe 484extern void bgp_path_info_extra_free(struct bgp_path_info_extra **extra);
40381db7
DS		 485extern void bgp_path_info_reap(struct bgp_node *rn, struct bgp_path_info *pi);
486extern void bgp_path_info_delete(struct bgp_node *rn, struct bgp_path_info *pi);
4b7e6066 487extern struct bgp_path_info_extra *
18ee8310
DS		 488bgp_path_info_extra_get(struct bgp_path_info *path);
489extern void bgp_path_info_set_flag(struct bgp_node *rn,
490 struct bgp_path_info *path, uint32_t flag);
491extern void bgp_path_info_unset_flag(struct bgp_node *rn,
492 struct bgp_path_info *path, uint32_t flag);
40381db7 493extern void bgp_path_info_path_with_addpath_rx_str(struct bgp_path_info *pi,
18ee8310 494 char *buf);
d62a17ae 495
496extern int bgp_nlri_parse_ip(struct peer *, struct attr *, struct bgp_nlri *);
497
498extern int bgp_maximum_prefix_overflow(struct peer *, afi_t, safi_t, int);
499
9de1f7ff
DS		 500extern void bgp_redistribute_add(struct bgp *bgp, struct prefix *p,
501 const union g_addr *nexthop, ifindex_t ifindex,
502 enum nexthop_types_t nhtype, uint32_t metric,
d7c0a89a 503 uint8_t type, unsigned short instance,
9de1f7ff 504 route_tag_t tag);
d7c0a89a
QY		 505extern void bgp_redistribute_delete(struct bgp *, struct prefix *, uint8_t,
506 unsigned short);
507extern void bgp_redistribute_withdraw(struct bgp *, afi_t, int, unsigned short);
d62a17ae 508
509extern void bgp_static_add(struct bgp *);
510extern void bgp_static_delete(struct bgp *);
511extern void bgp_static_redo_import_check(struct bgp *);
512extern void bgp_purge_static_redist_routes(struct bgp *bgp);
513extern void bgp_static_update(struct bgp *, struct prefix *,
514 struct bgp_static *, afi_t, safi_t);
515extern void bgp_static_withdraw(struct bgp *, struct prefix *, afi_t, safi_t);
516
517extern int bgp_static_set_safi(afi_t afi, safi_t safi, struct vty *vty,
518 const char *, const char *, const char *,
519 const char *, int, const char *, const char *,
520 const char *, const char *);
521
522extern int bgp_static_unset_safi(afi_t afi, safi_t safi, struct vty *,
523 const char *, const char *, const char *, int,
524 const char *, const char *, const char *);
718e3744 525
94f2b392 526/* this is primarily for MPLS-VPN */
d7c0a89a 527extern int bgp_update(struct peer *, struct prefix *, uint32_t, struct attr *,
d62a17ae 528 afi_t, safi_t, int, int, struct prefix_rd *,
d7c0a89a
QY		 529 mpls_label_t *, uint32_t, int, struct bgp_route_evpn *);
530extern int bgp_withdraw(struct peer *, struct prefix *, uint32_t, struct attr *,
531 afi_t, safi_t, int, int, struct prefix_rd *,
532 mpls_label_t *, uint32_t, struct bgp_route_evpn *);
718e3744 533
94f2b392 534/* for bgp_nexthop and bgp_damp */
d62a17ae 535extern void bgp_process(struct bgp *, struct bgp_node *, afi_t, safi_t);
cb1faec9
DS		 536
537/*
538 * Add an end-of-initial-update marker to the process queue. This is just a
539 * queue element with NULL bgp node.
540 */
d62a17ae 541extern void bgp_add_eoiu_mark(struct bgp *);
60466a63
QY		 542extern void bgp_config_write_table_map(struct vty *, struct bgp *, afi_t,
543 safi_t);
2b791107 544extern void bgp_config_write_network(struct vty *, struct bgp *, afi_t, safi_t);
60466a63
QY		 545extern void bgp_config_write_distance(struct vty *, struct bgp *, afi_t,
546 safi_t);
d62a17ae 547
4b7e6066
DS		 548extern void bgp_aggregate_increment(struct bgp *bgp, struct prefix *p,
549 struct bgp_path_info *path, afi_t afi,
550 safi_t safi);
551extern void bgp_aggregate_decrement(struct bgp *bgp, struct prefix *p,
552 struct bgp_path_info *path, afi_t afi,
553 safi_t safi);
d62a17ae 554
4b7e6066
DS		 555extern uint8_t bgp_distance_apply(struct prefix *p, struct bgp_path_info *path,
556 afi_t afi, safi_t safi, struct bgp *bgp);
d62a17ae 557
558extern afi_t bgp_node_afi(struct vty *);
559extern safi_t bgp_node_safi(struct vty *);
560
4b7e6066
DS		 561extern struct bgp_path_info *info_make(int type, int sub_type,
562 unsigned short instance,
563 struct peer *peer, struct attr *attr,
564 struct bgp_node *rn);
565
566extern void route_vty_out(struct vty *vty, struct prefix *p,
567 struct bgp_path_info *path, int display, safi_t safi,
568 json_object *json_paths);
569extern void route_vty_out_tag(struct vty *vty, struct prefix *p,
570 struct bgp_path_info *path, int display,
571 safi_t safi, json_object *json);
94d4c685
DS		 572extern void route_vty_out_tmp(struct vty *vty, struct prefix *p,
573 struct attr *attr, safi_t safi, bool use_json,
574 json_object *json_ar);
d62a17ae 575extern void route_vty_out_overlay(struct vty *vty, struct prefix *p,
9b6d8fcf 576 struct bgp_path_info *path, int display,
d62a17ae 577 json_object *json);
578
579extern int subgroup_process_announce_selected(struct update_subgroup *subgrp,
4b7e6066 580 struct bgp_path_info *selected,
d62a17ae 581 struct bgp_node *rn,
d7c0a89a 582 uint32_t addpath_tx_id);
3f9c7369 583
4b7e6066 584extern int subgroup_announce_check(struct bgp_node *rn,
40381db7 585 struct bgp_path_info *pi,
3f9c7369
DS		 586 struct update_subgroup *subgrp,
587 struct prefix *p, struct attr *attr);
588
d62a17ae 589extern void bgp_peer_clear_node_queue_drain_immediate(struct peer *peer);
590extern void bgp_process_queues_drain_immediate(void);
bb86c601 591
65efcfce 592/* for encap/vpn */
d62a17ae 593extern struct bgp_node *bgp_afi_node_lookup(struct bgp_table *table, afi_t afi,
594 safi_t safi, struct prefix *p,
595 struct prefix_rd *prd);
18ee8310
DS		 596extern void bgp_path_info_restore(struct bgp_node *rn,
597 struct bgp_path_info *path);
598
599extern int bgp_path_info_cmp_compatible(struct bgp *bgp,
600 struct bgp_path_info *new,
601 struct bgp_path_info *exist,
fdf81fa0
DS		 602 char *pfx_buf, afi_t afi, safi_t safi,
603 enum bgp_path_selection_reason *reason);
7f323236 604extern void bgp_attr_add_gshut_community(struct attr *attr);
d62a17ae 605
606extern void bgp_best_selection(struct bgp *bgp, struct bgp_node *rn,
607 struct bgp_maxpaths_cfg *mpath_cfg,
4b7e6066 608 struct bgp_path_info_pair *result, afi_t afi,
d62a17ae 609 safi_t safi);
610extern void bgp_zebra_clear_route_change_flags(struct bgp_node *rn);
611extern int bgp_zebra_has_route_changed(struct bgp_node *rn,
4b7e6066 612 struct bgp_path_info *selected);
d62a17ae 613
614extern void route_vty_out_detail_header(struct vty *vty, struct bgp *bgp,
615 struct bgp_node *rn,
616 struct prefix_rd *prd, afi_t afi,
617 safi_t safi, json_object *json);
618extern void route_vty_out_detail(struct vty *vty, struct bgp *bgp,
f08b5ca0
DS		 619 struct bgp_node *bn,
620 struct bgp_path_info *path,
d62a17ae 621 afi_t afi, safi_t safi,
622 json_object *json_paths);
1ae44dfc
LB		 623extern int bgp_show_table_rd(struct vty *vty, struct bgp *bgp, safi_t safi,
624 struct bgp_table *table, struct prefix_rd *prd,
625 enum bgp_show_type type, void *output_arg,
9f049418 626 bool use_json);
00d252cb 627#endif /* _QUAGGA_BGP_ROUTE_H */
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