]> git.proxmox.com Git - mirror_frr.git/blame - bgpd/bgp_route.c
projects / mirror_frr.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
topotests: Add test to check if eBGP required policy works
[mirror_frr.git] / bgpd / bgp_route.c
CommitLineData
718e3744 1/* BGP routing information
896014f4
DL		 2 * Copyright (C) 1996, 97, 98, 99 Kunihiro Ishiguro
3 * Copyright (C) 2016 Job Snijders <job@instituut.net>
4 *
5 * This file is part of GNU Zebra.
6 *
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
10 * later version.
11 *
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; see the file COPYING; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 */
718e3744 21
22#include <zebra.h>
8d0ab76d 23#include <math.h>
718e3744 24
25#include "prefix.h"
26#include "linklist.h"
27#include "memory.h"
28#include "command.h"
29#include "stream.h"
30#include "filter.h"
718e3744 31#include "log.h"
32#include "routemap.h"
33#include "buffer.h"
34#include "sockunion.h"
35#include "plist.h"
36#include "thread.h"
200df115 37#include "workqueue.h"
3f9c7369 38#include "queue.h"
6e919709 39#include "memory.h"
4dcadbef 40#include "lib/json.h"
d8d084d9 41#include "lib_errors.h"
718e3744 42
43#include "bgpd/bgpd.h"
44#include "bgpd/bgp_table.h"
45#include "bgpd/bgp_route.h"
46#include "bgpd/bgp_attr.h"
47#include "bgpd/bgp_debug.h"
14454c9f 48#include "bgpd/bgp_errors.h"
718e3744 49#include "bgpd/bgp_aspath.h"
50#include "bgpd/bgp_regex.h"
51#include "bgpd/bgp_community.h"
52#include "bgpd/bgp_ecommunity.h"
57d187bc 53#include "bgpd/bgp_lcommunity.h"
718e3744 54#include "bgpd/bgp_clist.h"
55#include "bgpd/bgp_packet.h"
56#include "bgpd/bgp_filter.h"
57#include "bgpd/bgp_fsm.h"
58#include "bgpd/bgp_mplsvpn.h"
59#include "bgpd/bgp_nexthop.h"
60#include "bgpd/bgp_damp.h"
61#include "bgpd/bgp_advertise.h"
62#include "bgpd/bgp_zebra.h"
0a486e5f 63#include "bgpd/bgp_vty.h"
96450faf 64#include "bgpd/bgp_mpath.h"
fc9a856f 65#include "bgpd/bgp_nht.h"
3f9c7369 66#include "bgpd/bgp_updgrp.h"
cd1964ff 67#include "bgpd/bgp_label.h"
dcc68b5e 68#include "bgpd/bgp_addpath.h"
4e802e66 69#include "bgpd/bgp_mac.h"
718e3744 70
65efcfce 71#if ENABLE_BGP_VNC
f8b6f499
LB		 72#include "bgpd/rfapi/rfapi_backend.h"
73#include "bgpd/rfapi/vnc_import_bgp.h"
74#include "bgpd/rfapi/vnc_export_bgp.h"
65efcfce 75#endif
aee875b5
PG		 76#include "bgpd/bgp_encap_types.h"
77#include "bgpd/bgp_encap_tlv.h"
684a7227 78#include "bgpd/bgp_evpn.h"
3da6fcd5 79#include "bgpd/bgp_evpn_vty.h"
dba3c1d3 80#include "bgpd/bgp_flowspec.h"
98a9dbc7 81#include "bgpd/bgp_flowspec_util.h"
45918cfb 82#include "bgpd/bgp_pbr.h"
65efcfce 83
e2a86ad9
DS		 84#ifndef VTYSH_EXTRACT_PL
85#include "bgpd/bgp_route_clippy.c"
86#endif
aee875b5 87
718e3744 88/* Extern from bgp_dump.c */
dde72586
SH		 89extern const char *bgp_origin_str[];
90extern const char *bgp_origin_long_str[];
6b0655a2 91
b7d08f5a 92/* PMSI strings. */
93#define PMSI_TNLTYPE_STR_NO_INFO "No info"
94#define PMSI_TNLTYPE_STR_DEFAULT PMSI_TNLTYPE_STR_NO_INFO
95static const struct message bgp_pmsi_tnltype_str[] = {
96 {PMSI_TNLTYPE_NO_INFO, PMSI_TNLTYPE_STR_NO_INFO},
97 {PMSI_TNLTYPE_RSVP_TE_P2MP, "RSVP-TE P2MP"},
98 {PMSI_TNLTYPE_MLDP_P2MP, "mLDP P2MP"},
99 {PMSI_TNLTYPE_PIM_SSM, "PIM-SSM"},
100 {PMSI_TNLTYPE_PIM_SM, "PIM-SM"},
101 {PMSI_TNLTYPE_PIM_BIDIR, "PIM-BIDIR"},
102 {PMSI_TNLTYPE_INGR_REPL, "Ingress Replication"},
103 {PMSI_TNLTYPE_MLDP_MP2MP, "mLDP MP2MP"},
88fbc36f 104 {0}
105};
b7d08f5a 106
9df8b37c
PZ		 107#define VRFID_NONE_STR "-"
108
d62a17ae 109struct bgp_node *bgp_afi_node_get(struct bgp_table *table, afi_t afi,
110 safi_t safi, struct prefix *p,
111 struct prefix_rd *prd)
112{
113 struct bgp_node *rn;
114 struct bgp_node *prn = NULL;
115
116 assert(table);
117 if (!table)
118 return NULL;
119
120 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)
121 || (safi == SAFI_EVPN)) {
122 prn = bgp_node_get(table, (struct prefix *)prd);
123
67009e22
DS		 124 if (!bgp_node_has_bgp_path_info_data(prn))
125 bgp_node_set_bgp_table_info(
126 prn, bgp_table_init(table->bgp, afi, safi));
d62a17ae 127 else
128 bgp_unlock_node(prn);
67009e22 129 table = bgp_node_get_bgp_table_info(prn);
d62a17ae 130 }
718e3744 131
d62a17ae 132 rn = bgp_node_get(table, p);
718e3744 133
d62a17ae 134 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)
135 || (safi == SAFI_EVPN))
136 rn->prn = prn;
718e3744 137
d62a17ae 138 return rn;
718e3744 139}
6b0655a2 140
d62a17ae 141struct bgp_node *bgp_afi_node_lookup(struct bgp_table *table, afi_t afi,
142 safi_t safi, struct prefix *p,
143 struct prefix_rd *prd)
128ea8ab 144{
d62a17ae 145 struct bgp_node *rn;
146 struct bgp_node *prn = NULL;
128ea8ab 147
d62a17ae 148 if (!table)
149 return NULL;
128ea8ab 150
d62a17ae 151 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)
152 || (safi == SAFI_EVPN)) {
153 prn = bgp_node_lookup(table, (struct prefix *)prd);
154 if (!prn)
155 return NULL;
128ea8ab 156
6f94b685 157 if (!bgp_node_has_bgp_path_info_data(prn)) {
d62a17ae 158 bgp_unlock_node(prn);
159 return NULL;
160 }
128ea8ab 161
67009e22 162 table = bgp_node_get_bgp_table_info(prn);
d62a17ae 163 }
128ea8ab 164
d62a17ae 165 rn = bgp_node_lookup(table, p);
128ea8ab 166
d62a17ae 167 return rn;
128ea8ab 168}
169
18ee8310
DS		 170/* Allocate bgp_path_info_extra */
171static struct bgp_path_info_extra *bgp_path_info_extra_new(void)
fb982c25 172{
4b7e6066
DS		 173 struct bgp_path_info_extra *new;
174 new = XCALLOC(MTYPE_BGP_ROUTE_EXTRA,
175 sizeof(struct bgp_path_info_extra));
b57ba6d2
MK		 176 new->label[0] = MPLS_INVALID_LABEL;
177 new->num_labels = 0;
3e3708cb
PG		 178 new->bgp_fs_pbr = NULL;
179 new->bgp_fs_iprule = NULL;
d62a17ae 180 return new;
fb982c25
PJ		 181}
182
a2e219fe 183void bgp_path_info_extra_free(struct bgp_path_info_extra **extra)
fb982c25 184{
4b7e6066 185 struct bgp_path_info_extra *e;
d62a17ae 186
c93a3b77
DS		 187 if (!extra || !*extra)
188 return;
d62a17ae 189
c93a3b77
DS		 190 e = *extra;
191 if (e->damp_info)
192 bgp_damp_info_free(e->damp_info, 0);
d62a17ae 193
c93a3b77
DS		 194 e->damp_info = NULL;
195 if (e->parent) {
40381db7 196 struct bgp_path_info *bpi = (struct bgp_path_info *)e->parent;
c93a3b77 197
40381db7 198 if (bpi->net) {
0e70e6c8
DL		 199 /* FIXME: since multiple e may have the same e->parent
200 * and e->parent->net is holding a refcount for each
201 * of them, we need to do some fudging here.
202 *
40381db7
DS		 203 * WARNING: if bpi->net->lock drops to 0, bpi may be
204 * freed as well (because bpi->net was holding the
205 * last reference to bpi) => write after free!
0e70e6c8
DL		 206 */
207 unsigned refcount;
208
40381db7
DS		 209 bpi = bgp_path_info_lock(bpi);
210 refcount = bpi->net->lock - 1;
211 bgp_unlock_node((struct bgp_node *)bpi->net);
0e70e6c8 212 if (!refcount)
40381db7
DS		 213 bpi->net = NULL;
214 bgp_path_info_unlock(bpi);
0e70e6c8 215 }
18ee8310 216 bgp_path_info_unlock(e->parent);
c93a3b77 217 e->parent = NULL;
d62a17ae 218 }
c93a3b77
DS		 219
220 if (e->bgp_orig)
221 bgp_unlock(e->bgp_orig);
c26edcda 222
ce3c0614
PG		 223 if ((*extra)->bgp_fs_iprule)
224 list_delete(&((*extra)->bgp_fs_iprule));
c26edcda 225 if ((*extra)->bgp_fs_pbr)
6a154c88 226 list_delete(&((*extra)->bgp_fs_pbr));
c93a3b77
DS		 227 XFREE(MTYPE_BGP_ROUTE_EXTRA, *extra);
228
229 *extra = NULL;
fb982c25
PJ		 230}
231
18ee8310
DS		 232/* Get bgp_path_info extra information for the given bgp_path_info, lazy
233 * allocated if required.
fb982c25 234 */
40381db7 235struct bgp_path_info_extra *bgp_path_info_extra_get(struct bgp_path_info *pi)
fb982c25 236{
40381db7
DS		 237 if (!pi->extra)
238 pi->extra = bgp_path_info_extra_new();
239 return pi->extra;
fb982c25
PJ		 240}
241
718e3744 242/* Free bgp route information. */
9b6d8fcf 243static void bgp_path_info_free(struct bgp_path_info *path)
718e3744 244{
9b6d8fcf
DS		 245 if (path->attr)
246 bgp_attr_unintern(&path->attr);
fb018d25 247
9b6d8fcf
DS		 248 bgp_unlink_nexthop(path);
249 bgp_path_info_extra_free(&path->extra);
250 bgp_path_info_mpath_free(&path->mpath);
62918377
RW		 251 if (path->net)
252 bgp_addpath_free_info_data(&path->tx_addpath,
253 &path->net->tx_addpath);
718e3744 254
9b6d8fcf 255 peer_unlock(path->peer); /* bgp_path_info peer reference */
200df115 256
9b6d8fcf 257 XFREE(MTYPE_BGP_ROUTE, path);
718e3744 258}
259
9b6d8fcf 260struct bgp_path_info *bgp_path_info_lock(struct bgp_path_info *path)
200df115 261{
9b6d8fcf
DS		 262 path->lock++;
263 return path;
200df115 264}
265
9b6d8fcf 266struct bgp_path_info *bgp_path_info_unlock(struct bgp_path_info *path)
200df115 267{
9b6d8fcf
DS		 268 assert(path && path->lock > 0);
269 path->lock--;
d62a17ae 270
9b6d8fcf 271 if (path->lock == 0) {
200df115 272#if 0
273 zlog_debug ("%s: unlocked and freeing", __func__);
274 zlog_backtrace (LOG_DEBUG);
275#endif
9b6d8fcf 276 bgp_path_info_free(path);
d62a17ae 277 return NULL;
278 }
200df115 279
280#if 0
9b6d8fcf 281 if (path->lock == 1)
200df115 282 {
283 zlog_debug ("%s: unlocked to 1", __func__);
284 zlog_backtrace (LOG_DEBUG);
285 }
286#endif
d62a17ae 287
9b6d8fcf 288 return path;
200df115 289}
290
40381db7 291void bgp_path_info_add(struct bgp_node *rn, struct bgp_path_info *pi)
718e3744 292{
4b7e6066 293 struct bgp_path_info *top;
718e3744 294
6f94b685 295 top = bgp_node_get_bgp_path_info(rn);
d62a17ae 296
6f94b685 297 pi->next = top;
40381db7 298 pi->prev = NULL;
d62a17ae 299 if (top)
40381db7 300 top->prev = pi;
6f94b685 301 bgp_node_set_bgp_path_info(rn, pi);
d62a17ae 302
40381db7 303 bgp_path_info_lock(pi);
d62a17ae 304 bgp_lock_node(rn);
40381db7 305 peer_lock(pi->peer); /* bgp_path_info peer reference */
718e3744 306}
307
d62a17ae 308/* Do the actual removal of info from RIB, for use by bgp_process
b40d939b 309 completion callback *only* */
40381db7 310void bgp_path_info_reap(struct bgp_node *rn, struct bgp_path_info *pi)
718e3744 311{
40381db7
DS		 312 if (pi->next)
313 pi->next->prev = pi->prev;
314 if (pi->prev)
315 pi->prev->next = pi->next;
d62a17ae 316 else
6f94b685 317 bgp_node_set_bgp_path_info(rn, pi->next);
d62a17ae 318
40381db7
DS		 319 bgp_path_info_mpath_dequeue(pi);
320 bgp_path_info_unlock(pi);
d62a17ae 321 bgp_unlock_node(rn);
718e3744 322}
323
40381db7 324void bgp_path_info_delete(struct bgp_node *rn, struct bgp_path_info *pi)
b40d939b 325{
40381db7 326 bgp_path_info_set_flag(rn, pi, BGP_PATH_REMOVED);
d62a17ae 327 /* set of previous already took care of pcount */
40381db7 328 UNSET_FLAG(pi->flags, BGP_PATH_VALID);
b40d939b 329}
330
18ee8310 331/* undo the effects of a previous call to bgp_path_info_delete; typically
8d45210e
AS		 332 called when a route is deleted and then quickly re-added before the
333 deletion has been processed */
40381db7 334void bgp_path_info_restore(struct bgp_node *rn, struct bgp_path_info *pi)
8d45210e 335{
40381db7 336 bgp_path_info_unset_flag(rn, pi, BGP_PATH_REMOVED);
d62a17ae 337 /* unset of previous already took care of pcount */
40381db7 338 SET_FLAG(pi->flags, BGP_PATH_VALID);
8d45210e
AS		 339}
340
d62a17ae 341/* Adjust pcount as required */
40381db7 342static void bgp_pcount_adjust(struct bgp_node *rn, struct bgp_path_info *pi)
1a392d46 343{
d62a17ae 344 struct bgp_table *table;
67174041 345
d62a17ae 346 assert(rn && bgp_node_table(rn));
40381db7 347 assert(pi && pi->peer && pi->peer->bgp);
6f58544d 348
d62a17ae 349 table = bgp_node_table(rn);
67174041 350
40381db7 351 if (pi->peer == pi->peer->bgp->peer_self)
d62a17ae 352 return;
353
40381db7
DS		 354 if (!BGP_PATH_COUNTABLE(pi)
355 && CHECK_FLAG(pi->flags, BGP_PATH_COUNTED)) {
d62a17ae 356
40381db7 357 UNSET_FLAG(pi->flags, BGP_PATH_COUNTED);
d62a17ae 358
359 /* slight hack, but more robust against errors. */
40381db7
DS		 360 if (pi->peer->pcount[table->afi][table->safi])
361 pi->peer->pcount[table->afi][table->safi]--;
d8d084d9 362 else
450971aa 363 flog_err(EC_LIB_DEVELOPMENT,
d8d084d9 364 "Asked to decrement 0 prefix count for peer");
40381db7
DS		 365 } else if (BGP_PATH_COUNTABLE(pi)
366 && !CHECK_FLAG(pi->flags, BGP_PATH_COUNTED)) {
367 SET_FLAG(pi->flags, BGP_PATH_COUNTED);
368 pi->peer->pcount[table->afi][table->safi]++;
d62a17ae 369 }
1a392d46
PJ		 370}
371
40381db7
DS		 372static int bgp_label_index_differs(struct bgp_path_info *pi1,
373 struct bgp_path_info *pi2)
28d58fd7 374{
40381db7 375 return (!(pi1->attr->label_index == pi2->attr->label_index));
28d58fd7 376}
1a392d46 377
18ee8310 378/* Set/unset bgp_path_info flags, adjusting any other state as needed.
1a392d46
PJ		 379 * This is here primarily to keep prefix-count in check.
380 */
40381db7 381void bgp_path_info_set_flag(struct bgp_node *rn, struct bgp_path_info *pi,
18ee8310 382 uint32_t flag)
1a392d46 383{
40381db7 384 SET_FLAG(pi->flags, flag);
d62a17ae 385
386 /* early bath if we know it's not a flag that changes countability state
387 */
388 if (!CHECK_FLAG(flag,
1defdda8 389 BGP_PATH_VALID | BGP_PATH_HISTORY | BGP_PATH_REMOVED))
d62a17ae 390 return;
391
40381db7 392 bgp_pcount_adjust(rn, pi);
1a392d46
PJ		 393}
394
40381db7 395void bgp_path_info_unset_flag(struct bgp_node *rn, struct bgp_path_info *pi,
18ee8310 396 uint32_t flag)
1a392d46 397{
40381db7 398 UNSET_FLAG(pi->flags, flag);
d62a17ae 399
400 /* early bath if we know it's not a flag that changes countability state
401 */
402 if (!CHECK_FLAG(flag,
1defdda8 403 BGP_PATH_VALID | BGP_PATH_HISTORY | BGP_PATH_REMOVED))
d62a17ae 404 return;
405
40381db7 406 bgp_pcount_adjust(rn, pi);
1a392d46
PJ		 407}
408
718e3744 409/* Get MED value. If MED value is missing and "bgp bestpath
410 missing-as-worst" is specified, treat it as the worst value. */
d7c0a89a 411static uint32_t bgp_med_value(struct attr *attr, struct bgp *bgp)
d62a17ae 412{
413 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC))
414 return attr->med;
415 else {
416 if (bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST))
417 return BGP_MED_MAX;
418 else
419 return 0;
420 }
718e3744 421}
422
40381db7 423void bgp_path_info_path_with_addpath_rx_str(struct bgp_path_info *pi, char *buf)
2ec1e66f 424{
40381db7
DS		 425 if (pi->addpath_rx_id)
426 sprintf(buf, "path %s (addpath rxid %d)", pi->peer->host,
427 pi->addpath_rx_id);
d62a17ae 428 else
40381db7 429 sprintf(buf, "path %s", pi->peer->host);
d62a17ae 430}
9fbdd100 431
d62a17ae 432/* Compare two bgp route entity. If 'new' is preferable over 'exist' return 1.
433 */
18ee8310
DS		 434static int bgp_path_info_cmp(struct bgp *bgp, struct bgp_path_info *new,
435 struct bgp_path_info *exist, int *paths_eq,
436 struct bgp_maxpaths_cfg *mpath_cfg, int debug,
437 char *pfx_buf, afi_t afi, safi_t safi)
d62a17ae 438{
439 struct attr *newattr, *existattr;
440 bgp_peer_sort_t new_sort;
441 bgp_peer_sort_t exist_sort;
d7c0a89a
QY		 442 uint32_t new_pref;
443 uint32_t exist_pref;
444 uint32_t new_med;
445 uint32_t exist_med;
446 uint32_t new_weight;
447 uint32_t exist_weight;
d62a17ae 448 uint32_t newm, existm;
449 struct in_addr new_id;
450 struct in_addr exist_id;
451 int new_cluster;
452 int exist_cluster;
453 int internal_as_route;
454 int confed_as_route;
04d14c8b 455 int ret = 0;
d62a17ae 456 char new_buf[PATH_ADDPATH_STR_BUFFER];
457 char exist_buf[PATH_ADDPATH_STR_BUFFER];
d7c0a89a
QY		 458 uint32_t new_mm_seq;
459 uint32_t exist_mm_seq;
6d8c603a 460 int nh_cmp;
d62a17ae 461
462 *paths_eq = 0;
463
464 /* 0. Null check. */
465 if (new == NULL) {
466 if (debug)
467 zlog_debug("%s: new is NULL", pfx_buf);
468 return 0;
469 }
2ec1e66f 470
d62a17ae 471 if (debug)
18ee8310 472 bgp_path_info_path_with_addpath_rx_str(new, new_buf);
718e3744 473
d62a17ae 474 if (exist == NULL) {
475 if (debug)
476 zlog_debug("%s: %s is the initial bestpath", pfx_buf,
477 new_buf);
478 return 1;
479 }
2ec1e66f 480
d62a17ae 481 if (debug) {
18ee8310 482 bgp_path_info_path_with_addpath_rx_str(exist, exist_buf);
d62a17ae 483 zlog_debug("%s: Comparing %s flags 0x%x with %s flags 0x%x",
484 pfx_buf, new_buf, new->flags, exist_buf,
485 exist->flags);
486 }
8ff56318 487
d62a17ae 488 newattr = new->attr;
489 existattr = exist->attr;
490
491 /* For EVPN routes, we cannot just go by local vs remote, we have to
492 * look at the MAC mobility sequence number, if present.
493 */
494 if (safi == SAFI_EVPN) {
495 /* This is an error condition described in RFC 7432 Section
496 * 15.2. The RFC
497 * states that in this scenario "the PE MUST alert the operator"
498 * but it
499 * does not state what other action to take. In order to provide
500 * some
501 * consistency in this scenario we are going to prefer the path
502 * with the
503 * sticky flag.
504 */
505 if (newattr->sticky != existattr->sticky) {
506 if (!debug) {
507 prefix2str(&new->net->p, pfx_buf,
508 sizeof(*pfx_buf)
509 * PREFIX2STR_BUFFER);
18ee8310
DS		 510 bgp_path_info_path_with_addpath_rx_str(new,
511 new_buf);
512 bgp_path_info_path_with_addpath_rx_str(
513 exist, exist_buf);
d62a17ae 514 }
515
516 if (newattr->sticky && !existattr->sticky) {
deff24ca
DS		 517 if (debug)
518 zlog_debug(
519 "%s: %s wins over %s due to sticky MAC flag",
520 pfx_buf, new_buf, exist_buf);
d62a17ae 521 return 1;
522 }
523
524 if (!newattr->sticky && existattr->sticky) {
deff24ca
DS		 525 if (debug)
526 zlog_debug(
527 "%s: %s loses to %s due to sticky MAC flag",
528 pfx_buf, new_buf, exist_buf);
d62a17ae 529 return 0;
530 }
531 }
128ea8ab 532
d62a17ae 533 new_mm_seq = mac_mobility_seqnum(newattr);
534 exist_mm_seq = mac_mobility_seqnum(existattr);
8ff56318 535
d62a17ae 536 if (new_mm_seq > exist_mm_seq) {
537 if (debug)
538 zlog_debug(
539 "%s: %s wins over %s due to MM seq %u > %u",
540 pfx_buf, new_buf, exist_buf, new_mm_seq,
541 exist_mm_seq);
542 return 1;
543 }
8ff56318 544
d62a17ae 545 if (new_mm_seq < exist_mm_seq) {
546 if (debug)
547 zlog_debug(
548 "%s: %s loses to %s due to MM seq %u < %u",
549 pfx_buf, new_buf, exist_buf, new_mm_seq,
550 exist_mm_seq);
551 return 0;
552 }
6d8c603a
AK		 553
554 /*
555 * if sequence numbers are the same path with the lowest IP
556 * wins
557 */
558 nh_cmp = bgp_path_info_nexthop_cmp(new, exist);
559 if (nh_cmp < 0) {
560 if (debug)
561 zlog_debug(
562 "%s: %s wins over %s due to same MM seq %u and lower IP %s",
563 pfx_buf, new_buf, exist_buf, new_mm_seq,
564 inet_ntoa(new->attr->nexthop));
565 return 1;
566 }
567 if (nh_cmp > 0) {
568 if (debug)
569 zlog_debug(
570 "%s: %s loses to %s due to same MM seq %u and higher IP %s",
571 pfx_buf, new_buf, exist_buf, new_mm_seq,
572 inet_ntoa(new->attr->nexthop));
573 return 0;
574 }
d62a17ae 575 }
9fbdd100 576
d62a17ae 577 /* 1. Weight check. */
d62a17ae 578 new_weight = newattr->weight;
579 exist_weight = existattr->weight;
8ff56318 580
d62a17ae 581 if (new_weight > exist_weight) {
582 if (debug)
583 zlog_debug("%s: %s wins over %s due to weight %d > %d",
584 pfx_buf, new_buf, exist_buf, new_weight,
585 exist_weight);
586 return 1;
587 }
718e3744 588
d62a17ae 589 if (new_weight < exist_weight) {
590 if (debug)
591 zlog_debug("%s: %s loses to %s due to weight %d < %d",
592 pfx_buf, new_buf, exist_buf, new_weight,
593 exist_weight);
594 return 0;
595 }
9fbdd100 596
d62a17ae 597 /* 2. Local preference check. */
598 new_pref = exist_pref = bgp->default_local_pref;
599
600 if (newattr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF))
601 new_pref = newattr->local_pref;
602 if (existattr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF))
603 exist_pref = existattr->local_pref;
604
605 if (new_pref > exist_pref) {
606 if (debug)
607 zlog_debug(
608 "%s: %s wins over %s due to localpref %d > %d",
609 pfx_buf, new_buf, exist_buf, new_pref,
610 exist_pref);
611 return 1;
612 }
718e3744 613
d62a17ae 614 if (new_pref < exist_pref) {
615 if (debug)
616 zlog_debug(
617 "%s: %s loses to %s due to localpref %d < %d",
618 pfx_buf, new_buf, exist_buf, new_pref,
619 exist_pref);
620 return 0;
621 }
9fbdd100 622
d62a17ae 623 /* 3. Local route check. We prefer:
624 * - BGP_ROUTE_STATIC
625 * - BGP_ROUTE_AGGREGATE
626 * - BGP_ROUTE_REDISTRIBUTE
627 */
90f4f482 628 if (!(new->sub_type == BGP_ROUTE_NORMAL ||
629 new->sub_type == BGP_ROUTE_IMPORTED)) {
d62a17ae 630 if (debug)
631 zlog_debug(
632 "%s: %s wins over %s due to preferred BGP_ROUTE type",
633 pfx_buf, new_buf, exist_buf);
634 return 1;
635 }
718e3744 636
90f4f482 637 if (!(exist->sub_type == BGP_ROUTE_NORMAL ||
88493076 638 exist->sub_type == BGP_ROUTE_IMPORTED)) {
d62a17ae 639 if (debug)
640 zlog_debug(
641 "%s: %s loses to %s due to preferred BGP_ROUTE type",
642 pfx_buf, new_buf, exist_buf);
643 return 0;
6811845b 644 }
718e3744 645
d62a17ae 646 /* 4. AS path length check. */
647 if (!bgp_flag_check(bgp, BGP_FLAG_ASPATH_IGNORE)) {
648 int exist_hops = aspath_count_hops(existattr->aspath);
649 int exist_confeds = aspath_count_confeds(existattr->aspath);
650
651 if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_CONFED)) {
652 int aspath_hops;
653
654 aspath_hops = aspath_count_hops(newattr->aspath);
655 aspath_hops += aspath_count_confeds(newattr->aspath);
656
657 if (aspath_hops < (exist_hops + exist_confeds)) {
658 if (debug)
659 zlog_debug(
660 "%s: %s wins over %s due to aspath (with confeds) hopcount %d < %d",
661 pfx_buf, new_buf, exist_buf,
662 aspath_hops,
663 (exist_hops + exist_confeds));
664 return 1;
665 }
666
667 if (aspath_hops > (exist_hops + exist_confeds)) {
668 if (debug)
669 zlog_debug(
670 "%s: %s loses to %s due to aspath (with confeds) hopcount %d > %d",
671 pfx_buf, new_buf, exist_buf,
672 aspath_hops,
673 (exist_hops + exist_confeds));
674 return 0;
675 }
676 } else {
677 int newhops = aspath_count_hops(newattr->aspath);
678
679 if (newhops < exist_hops) {
680 if (debug)
681 zlog_debug(
682 "%s: %s wins over %s due to aspath hopcount %d < %d",
683 pfx_buf, new_buf, exist_buf,
684 newhops, exist_hops);
685 return 1;
686 }
687
688 if (newhops > exist_hops) {
689 if (debug)
690 zlog_debug(
691 "%s: %s loses to %s due to aspath hopcount %d > %d",
692 pfx_buf, new_buf, exist_buf,
693 newhops, exist_hops);
694 return 0;
695 }
696 }
697 }
9fbdd100 698
d62a17ae 699 /* 5. Origin check. */
700 if (newattr->origin < existattr->origin) {
701 if (debug)
702 zlog_debug("%s: %s wins over %s due to ORIGIN %s < %s",
703 pfx_buf, new_buf, exist_buf,
704 bgp_origin_long_str[newattr->origin],
705 bgp_origin_long_str[existattr->origin]);
706 return 1;
707 }
718e3744 708
d62a17ae 709 if (newattr->origin > existattr->origin) {
710 if (debug)
711 zlog_debug("%s: %s loses to %s due to ORIGIN %s > %s",
712 pfx_buf, new_buf, exist_buf,
713 bgp_origin_long_str[newattr->origin],
714 bgp_origin_long_str[existattr->origin]);
715 return 0;
716 }
718e3744 717
d62a17ae 718 /* 6. MED check. */
719 internal_as_route = (aspath_count_hops(newattr->aspath) == 0
720 && aspath_count_hops(existattr->aspath) == 0);
721 confed_as_route = (aspath_count_confeds(newattr->aspath) > 0
722 && aspath_count_confeds(existattr->aspath) > 0
723 && aspath_count_hops(newattr->aspath) == 0
724 && aspath_count_hops(existattr->aspath) == 0);
725
726 if (bgp_flag_check(bgp, BGP_FLAG_ALWAYS_COMPARE_MED)
727 || (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED) && confed_as_route)
728 || aspath_cmp_left(newattr->aspath, existattr->aspath)
729 || aspath_cmp_left_confed(newattr->aspath, existattr->aspath)
730 || internal_as_route) {
731 new_med = bgp_med_value(new->attr, bgp);
732 exist_med = bgp_med_value(exist->attr, bgp);
733
734 if (new_med < exist_med) {
735 if (debug)
736 zlog_debug(
737 "%s: %s wins over %s due to MED %d < %d",
738 pfx_buf, new_buf, exist_buf, new_med,
739 exist_med);
740 return 1;
741 }
8ff56318 742
d62a17ae 743 if (new_med > exist_med) {
744 if (debug)
745 zlog_debug(
746 "%s: %s loses to %s due to MED %d > %d",
747 pfx_buf, new_buf, exist_buf, new_med,
748 exist_med);
749 return 0;
750 }
751 }
9fbdd100 752
d62a17ae 753 /* 7. Peer type check. */
754 new_sort = new->peer->sort;
755 exist_sort = exist->peer->sort;
756
757 if (new_sort == BGP_PEER_EBGP
758 && (exist_sort == BGP_PEER_IBGP || exist_sort == BGP_PEER_CONFED)) {
759 if (debug)
760 zlog_debug(
761 "%s: %s wins over %s due to eBGP peer > iBGP peer",
762 pfx_buf, new_buf, exist_buf);
763 return 1;
764 }
718e3744 765
d62a17ae 766 if (exist_sort == BGP_PEER_EBGP
767 && (new_sort == BGP_PEER_IBGP || new_sort == BGP_PEER_CONFED)) {
768 if (debug)
769 zlog_debug(
770 "%s: %s loses to %s due to iBGP peer < eBGP peer",
771 pfx_buf, new_buf, exist_buf);
772 return 0;
773 }
8ff56318 774
d62a17ae 775 /* 8. IGP metric check. */
776 newm = existm = 0;
8ff56318 777
d62a17ae 778 if (new->extra)
779 newm = new->extra->igpmetric;
780 if (exist->extra)
781 existm = exist->extra->igpmetric;
9fbdd100 782
d62a17ae 783 if (newm < existm) {
784 if (debug)
785 zlog_debug(
786 "%s: %s wins over %s due to IGP metric %d < %d",
787 pfx_buf, new_buf, exist_buf, newm, existm);
788 ret = 1;
789 }
718e3744 790
d62a17ae 791 if (newm > existm) {
792 if (debug)
793 zlog_debug(
794 "%s: %s loses to %s due to IGP metric %d > %d",
795 pfx_buf, new_buf, exist_buf, newm, existm);
796 ret = 0;
5e242b0d 797 }
5e242b0d 798
d62a17ae 799 /* 9. Same IGP metric. Compare the cluster list length as
800 representative of IGP hops metric. Rewrite the metric value
801 pair (newm, existm) with the cluster list length. Prefer the
802 path with smaller cluster list length. */
803 if (newm == existm) {
804 if (peer_sort(new->peer) == BGP_PEER_IBGP
805 && peer_sort(exist->peer) == BGP_PEER_IBGP
806 && (mpath_cfg == NULL
807 || CHECK_FLAG(
808 mpath_cfg->ibgp_flags,
809 BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN))) {
810 newm = BGP_CLUSTER_LIST_LENGTH(new->attr);
811 existm = BGP_CLUSTER_LIST_LENGTH(exist->attr);
812
813 if (newm < existm) {
814 if (debug)
815 zlog_debug(
816 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
817 pfx_buf, new_buf, exist_buf,
818 newm, existm);
819 ret = 1;
820 }
821
822 if (newm > existm) {
823 if (debug)
824 zlog_debug(
825 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
826 pfx_buf, new_buf, exist_buf,
827 newm, existm);
828 ret = 0;
829 }
830 }
831 }
31a4638f 832
d62a17ae 833 /* 10. confed-external vs. confed-internal */
834 if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) {
835 if (new_sort == BGP_PEER_CONFED
836 && exist_sort == BGP_PEER_IBGP) {
837 if (debug)
838 zlog_debug(
839 "%s: %s wins over %s due to confed-external peer > confed-internal peer",
840 pfx_buf, new_buf, exist_buf);
841 return 1;
842 }
718e3744 843
d62a17ae 844 if (exist_sort == BGP_PEER_CONFED
845 && new_sort == BGP_PEER_IBGP) {
846 if (debug)
847 zlog_debug(
848 "%s: %s loses to %s due to confed-internal peer < confed-external peer",
849 pfx_buf, new_buf, exist_buf);
850 return 0;
851 }
852 }
718e3744 853
d62a17ae 854 /* 11. Maximum path check. */
855 if (newm == existm) {
856 /* If one path has a label but the other does not, do not treat
857 * them as equals for multipath
858 */
a4d82a8a 859 if ((new->extra &&bgp_is_valid_label(&new->extra->label[0]))
d62a17ae 860 != (exist->extra
b57ba6d2 861 && bgp_is_valid_label(&exist->extra->label[0]))) {
d62a17ae 862 if (debug)
863 zlog_debug(
864 "%s: %s and %s cannot be multipath, one has a label while the other does not",
865 pfx_buf, new_buf, exist_buf);
866 } else if (bgp_flag_check(bgp,
867 BGP_FLAG_ASPATH_MULTIPATH_RELAX)) {
868
869 /*
870 * For the two paths, all comparison steps till IGP
871 * metric
872 * have succeeded - including AS_PATH hop count. Since
873 * 'bgp
874 * bestpath as-path multipath-relax' knob is on, we
875 * don't need
876 * an exact match of AS_PATH. Thus, mark the paths are
877 * equal.
878 * That will trigger both these paths to get into the
879 * multipath
880 * array.
881 */
882 *paths_eq = 1;
883
884 if (debug)
885 zlog_debug(
886 "%s: %s and %s are equal via multipath-relax",
887 pfx_buf, new_buf, exist_buf);
888 } else if (new->peer->sort == BGP_PEER_IBGP) {
889 if (aspath_cmp(new->attr->aspath,
890 exist->attr->aspath)) {
891 *paths_eq = 1;
892
893 if (debug)
894 zlog_debug(
895 "%s: %s and %s are equal via matching aspaths",
896 pfx_buf, new_buf, exist_buf);
897 }
898 } else if (new->peer->as == exist->peer->as) {
899 *paths_eq = 1;
900
901 if (debug)
902 zlog_debug(
903 "%s: %s and %s are equal via same remote-as",
904 pfx_buf, new_buf, exist_buf);
905 }
906 } else {
907 /*
908 * TODO: If unequal cost ibgp multipath is enabled we can
909 * mark the paths as equal here instead of returning
910 */
911 if (debug) {
912 if (ret == 1)
913 zlog_debug(
914 "%s: %s wins over %s after IGP metric comparison",
915 pfx_buf, new_buf, exist_buf);
916 else
917 zlog_debug(
918 "%s: %s loses to %s after IGP metric comparison",
919 pfx_buf, new_buf, exist_buf);
920 }
921 return ret;
922 }
718e3744 923
d62a17ae 924 /* 12. If both paths are external, prefer the path that was received
925 first (the oldest one). This step minimizes route-flap, since a
926 newer path won't displace an older one, even if it was the
927 preferred route based on the additional decision criteria below. */
928 if (!bgp_flag_check(bgp, BGP_FLAG_COMPARE_ROUTER_ID)
929 && new_sort == BGP_PEER_EBGP && exist_sort == BGP_PEER_EBGP) {
1defdda8 930 if (CHECK_FLAG(new->flags, BGP_PATH_SELECTED)) {
d62a17ae 931 if (debug)
932 zlog_debug(
933 "%s: %s wins over %s due to oldest external",
934 pfx_buf, new_buf, exist_buf);
935 return 1;
936 }
9fbdd100 937
1defdda8 938 if (CHECK_FLAG(exist->flags, BGP_PATH_SELECTED)) {
d62a17ae 939 if (debug)
940 zlog_debug(
941 "%s: %s loses to %s due to oldest external",
942 pfx_buf, new_buf, exist_buf);
943 return 0;
944 }
945 }
718e3744 946
d62a17ae 947 /* 13. Router-ID comparision. */
948 /* If one of the paths is "stale", the corresponding peer router-id will
949 * be 0 and would always win over the other path. If originator id is
950 * used for the comparision, it will decide which path is better.
951 */
952 if (newattr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID))
953 new_id.s_addr = newattr->originator_id.s_addr;
954 else
955 new_id.s_addr = new->peer->remote_id.s_addr;
956 if (existattr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID))
957 exist_id.s_addr = existattr->originator_id.s_addr;
958 else
959 exist_id.s_addr = exist->peer->remote_id.s_addr;
960
961 if (ntohl(new_id.s_addr) < ntohl(exist_id.s_addr)) {
962 if (debug)
963 zlog_debug(
964 "%s: %s wins over %s due to Router-ID comparison",
965 pfx_buf, new_buf, exist_buf);
966 return 1;
967 }
718e3744 968
d62a17ae 969 if (ntohl(new_id.s_addr) > ntohl(exist_id.s_addr)) {
970 if (debug)
971 zlog_debug(
972 "%s: %s loses to %s due to Router-ID comparison",
973 pfx_buf, new_buf, exist_buf);
974 return 0;
975 }
9fbdd100 976
d62a17ae 977 /* 14. Cluster length comparision. */
978 new_cluster = BGP_CLUSTER_LIST_LENGTH(new->attr);
979 exist_cluster = BGP_CLUSTER_LIST_LENGTH(exist->attr);
980
981 if (new_cluster < exist_cluster) {
982 if (debug)
983 zlog_debug(
984 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
985 pfx_buf, new_buf, exist_buf, new_cluster,
986 exist_cluster);
987 return 1;
988 }
718e3744 989
d62a17ae 990 if (new_cluster > exist_cluster) {
991 if (debug)
992 zlog_debug(
993 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
994 pfx_buf, new_buf, exist_buf, new_cluster,
995 exist_cluster);
996 return 0;
997 }
9fbdd100 998
d62a17ae 999 /* 15. Neighbor address comparision. */
1000 /* Do this only if neither path is "stale" as stale paths do not have
1001 * valid peer information (as the connection may or may not be up).
1002 */
1defdda8 1003 if (CHECK_FLAG(exist->flags, BGP_PATH_STALE)) {
d62a17ae 1004 if (debug)
1005 zlog_debug(
1006 "%s: %s wins over %s due to latter path being STALE",
1007 pfx_buf, new_buf, exist_buf);
1008 return 1;
1009 }
0de5153c 1010
1defdda8 1011 if (CHECK_FLAG(new->flags, BGP_PATH_STALE)) {
d62a17ae 1012 if (debug)
1013 zlog_debug(
1014 "%s: %s loses to %s due to former path being STALE",
1015 pfx_buf, new_buf, exist_buf);
1016 return 0;
1017 }
718e3744 1018
d62a17ae 1019 /* locally configured routes to advertise do not have su_remote */
1020 if (new->peer->su_remote == NULL)
1021 return 0;
1022 if (exist->peer->su_remote == NULL)
1023 return 1;
9fbdd100 1024
d62a17ae 1025 ret = sockunion_cmp(new->peer->su_remote, exist->peer->su_remote);
1026
1027 if (ret == 1) {
1028 if (debug)
1029 zlog_debug(
1030 "%s: %s loses to %s due to Neighor IP comparison",
1031 pfx_buf, new_buf, exist_buf);
1032 return 0;
1033 }
1034
1035 if (ret == -1) {
1036 if (debug)
1037 zlog_debug(
1038 "%s: %s wins over %s due to Neighor IP comparison",
1039 pfx_buf, new_buf, exist_buf);
1040 return 1;
1041 }
9fbdd100 1042
d62a17ae 1043 if (debug)
1044 zlog_debug("%s: %s wins over %s due to nothing left to compare",
1045 pfx_buf, new_buf, exist_buf);
718e3744 1046
d62a17ae 1047 return 1;
718e3744 1048}
1049
65efcfce
LB		 1050/* Compare two bgp route entity. Return -1 if new is preferred, 1 if exist
1051 * is preferred, or 0 if they are the same (usually will only occur if
d62a17ae 1052 * multipath is enabled
65efcfce 1053 * This version is compatible with */
18ee8310
DS		 1054int bgp_path_info_cmp_compatible(struct bgp *bgp, struct bgp_path_info *new,
1055 struct bgp_path_info *exist, char *pfx_buf,
1056 afi_t afi, safi_t safi)
d62a17ae 1057{
1058 int paths_eq;
1059 int ret;
18ee8310
DS		 1060 ret = bgp_path_info_cmp(bgp, new, exist, &paths_eq, NULL, 0, pfx_buf,
1061 afi, safi);
d62a17ae 1062
1063 if (paths_eq)
1064 ret = 0;
1065 else {
1066 if (ret == 1)
1067 ret = -1;
1068 else
1069 ret = 1;
1070 }
1071 return ret;
65efcfce
LB		 1072}
1073
d62a17ae 1074static enum filter_type bgp_input_filter(struct peer *peer, struct prefix *p,
1075 struct attr *attr, afi_t afi,
1076 safi_t safi)
718e3744 1077{
d62a17ae 1078 struct bgp_filter *filter;
718e3744 1079
d62a17ae 1080 filter = &peer->filter[afi][safi];
718e3744 1081
d62a17ae 1082#define FILTER_EXIST_WARN(F, f, filter) \
1083 if (BGP_DEBUG(update, UPDATE_IN) && !(F##_IN(filter))) \
d8d084d9
DS		 1084 zlog_debug("%s: Could not find configured input %s-list %s!", \
1085 peer->host, #f, F##_IN_NAME(filter));
d62a17ae 1086
1087 if (DISTRIBUTE_IN_NAME(filter)) {
1088 FILTER_EXIST_WARN(DISTRIBUTE, distribute, filter);
1089
1090 if (access_list_apply(DISTRIBUTE_IN(filter), p) == FILTER_DENY)
1091 return FILTER_DENY;
1092 }
1093
1094 if (PREFIX_LIST_IN_NAME(filter)) {
1095 FILTER_EXIST_WARN(PREFIX_LIST, prefix, filter);
1096
1097 if (prefix_list_apply(PREFIX_LIST_IN(filter), p) == PREFIX_DENY)
1098 return FILTER_DENY;
1099 }
1100
1101 if (FILTER_LIST_IN_NAME(filter)) {
1102 FILTER_EXIST_WARN(FILTER_LIST, as, filter);
1103
1104 if (as_list_apply(FILTER_LIST_IN(filter), attr->aspath)
1105 == AS_FILTER_DENY)
1106 return FILTER_DENY;
1107 }
1108
1109 return FILTER_PERMIT;
650f76c2 1110#undef FILTER_EXIST_WARN
718e3744 1111}
1112
d62a17ae 1113static enum filter_type bgp_output_filter(struct peer *peer, struct prefix *p,
1114 struct attr *attr, afi_t afi,
1115 safi_t safi)
718e3744 1116{
d62a17ae 1117 struct bgp_filter *filter;
1118
1119 filter = &peer->filter[afi][safi];
1120
1121#define FILTER_EXIST_WARN(F, f, filter) \
1122 if (BGP_DEBUG(update, UPDATE_OUT) && !(F##_OUT(filter))) \
d8d084d9
DS		 1123 zlog_debug("%s: Could not find configured output %s-list %s!", \
1124 peer->host, #f, F##_OUT_NAME(filter));
718e3744 1125
d62a17ae 1126 if (DISTRIBUTE_OUT_NAME(filter)) {
1127 FILTER_EXIST_WARN(DISTRIBUTE, distribute, filter);
718e3744 1128
d62a17ae 1129 if (access_list_apply(DISTRIBUTE_OUT(filter), p) == FILTER_DENY)
1130 return FILTER_DENY;
1131 }
1132
1133 if (PREFIX_LIST_OUT_NAME(filter)) {
1134 FILTER_EXIST_WARN(PREFIX_LIST, prefix, filter);
650f76c2 1135
d62a17ae 1136 if (prefix_list_apply(PREFIX_LIST_OUT(filter), p)
1137 == PREFIX_DENY)
1138 return FILTER_DENY;
1139 }
718e3744 1140
d62a17ae 1141 if (FILTER_LIST_OUT_NAME(filter)) {
1142 FILTER_EXIST_WARN(FILTER_LIST, as, filter);
718e3744 1143
d62a17ae 1144 if (as_list_apply(FILTER_LIST_OUT(filter), attr->aspath)
1145 == AS_FILTER_DENY)
1146 return FILTER_DENY;
1147 }
718e3744 1148
d62a17ae 1149 return FILTER_PERMIT;
650f76c2 1150#undef FILTER_EXIST_WARN
718e3744 1151}
1152
1153/* If community attribute includes no_export then return 1. */
d62a17ae 1154static int bgp_community_filter(struct peer *peer, struct attr *attr)
1155{
1156 if (attr->community) {
1157 /* NO_ADVERTISE check. */
1158 if (community_include(attr->community, COMMUNITY_NO_ADVERTISE))
1159 return 1;
1160
1161 /* NO_EXPORT check. */
1162 if (peer->sort == BGP_PEER_EBGP
1163 && community_include(attr->community, COMMUNITY_NO_EXPORT))
1164 return 1;
1165
1166 /* NO_EXPORT_SUBCONFED check. */
1167 if (peer->sort == BGP_PEER_EBGP
1168 || peer->sort == BGP_PEER_CONFED)
1169 if (community_include(attr->community,
1170 COMMUNITY_NO_EXPORT_SUBCONFED))
1171 return 1;
1172 }
1173 return 0;
718e3744 1174}
1175
1176/* Route reflection loop check. */
d62a17ae 1177static int bgp_cluster_filter(struct peer *peer, struct attr *attr)
718e3744 1178{
d62a17ae 1179 struct in_addr cluster_id;
718e3744 1180
d62a17ae 1181 if (attr->cluster) {
1182 if (peer->bgp->config & BGP_CONFIG_CLUSTER_ID)
1183 cluster_id = peer->bgp->cluster_id;
1184 else
1185 cluster_id = peer->bgp->router_id;
1186
1187 if (cluster_loop_check(attr->cluster, cluster_id))
1188 return 1;
1189 }
1190 return 0;
718e3744 1191}
6b0655a2 1192
d62a17ae 1193static int bgp_input_modifier(struct peer *peer, struct prefix *p,
1194 struct attr *attr, afi_t afi, safi_t safi,
1195 const char *rmap_name)
718e3744 1196{
d62a17ae 1197 struct bgp_filter *filter;
40381db7 1198 struct bgp_path_info rmap_path;
d62a17ae 1199 route_map_result_t ret;
1200 struct route_map *rmap = NULL;
718e3744 1201
d62a17ae 1202 filter = &peer->filter[afi][safi];
718e3744 1203
d62a17ae 1204 /* Apply default weight value. */
1205 if (peer->weight[afi][safi])
1206 attr->weight = peer->weight[afi][safi];
718e3744 1207
d62a17ae 1208 if (rmap_name) {
1209 rmap = route_map_lookup_by_name(rmap_name);
98a4a44e 1210
d62a17ae 1211 if (rmap == NULL)
1212 return RMAP_DENY;
1213 } else {
1214 if (ROUTE_MAP_IN_NAME(filter)) {
1215 rmap = ROUTE_MAP_IN(filter);
98a4a44e 1216
d62a17ae 1217 if (rmap == NULL)
1218 return RMAP_DENY;
1219 }
1220 }
0b16f239 1221
9dac9fc8
DA		 1222 /* RFC 8212 to prevent route leaks.
1223 * This specification intends to improve this situation by requiring the
1224 * explicit configuration of both BGP Import and Export Policies for any
1225 * External BGP (EBGP) session such as customers, peers, or
1226 * confederation boundaries for all enabled address families. Through
1227 * codification of the aforementioned requirement, operators will
1228 * benefit from consistent behavior across different BGP
1229 * implementations.
1230 */
1231 if (peer->bgp->ebgp_requires_policy
1232 == DEFAULT_EBGP_POLICY_ENABLED)
1233 if (!bgp_inbound_policy_exists(peer, filter))
1234 return RMAP_DENY;
1235
d62a17ae 1236 /* Route map apply. */
1237 if (rmap) {
40381db7 1238 memset(&rmap_path, 0, sizeof(struct bgp_path_info));
d62a17ae 1239 /* Duplicate current value to new strucutre for modification. */
40381db7
DS		 1240 rmap_path.peer = peer;
1241 rmap_path.attr = attr;
718e3744 1242
d62a17ae 1243 SET_FLAG(peer->rmap_type, PEER_RMAP_TYPE_IN);
ac41b2a2 1244
d62a17ae 1245 /* Apply BGP route map to the attribute. */
40381db7 1246 ret = route_map_apply(rmap, p, RMAP_BGP, &rmap_path);
0b16f239 1247
d62a17ae 1248 peer->rmap_type = 0;
0b16f239 1249
1f2263be 1250 if (ret == RMAP_DENYMATCH)
d62a17ae 1251 return RMAP_DENY;
0b16f239 1252 }
d62a17ae 1253 return RMAP_PERMIT;
0b16f239
DS		 1254}
1255
d62a17ae 1256static int bgp_output_modifier(struct peer *peer, struct prefix *p,
1257 struct attr *attr, afi_t afi, safi_t safi,
1258 const char *rmap_name)
0b16f239 1259{
40381db7 1260 struct bgp_path_info rmap_path;
d62a17ae 1261 route_map_result_t ret;
1262 struct route_map *rmap = NULL;
d7c0a89a 1263 uint8_t rmap_type;
0b16f239 1264
b787157a
DS		 1265 /*
1266 * So if we get to this point and have no rmap_name
1267 * we want to just show the output as it currently
1268 * exists.
1269 */
1270 if (!rmap_name)
1271 return RMAP_PERMIT;
0b16f239 1272
d62a17ae 1273 /* Apply default weight value. */
1274 if (peer->weight[afi][safi])
1275 attr->weight = peer->weight[afi][safi];
0b16f239 1276
b787157a 1277 rmap = route_map_lookup_by_name(rmap_name);
98a4a44e 1278
b787157a
DS		 1279 /*
1280 * If we have a route map name and we do not find
1281 * the routemap that means we have an implicit
1282 * deny.
1283 */
1284 if (rmap == NULL)
1285 return RMAP_DENY;
0b16f239 1286
40381db7 1287 memset(&rmap_path, 0, sizeof(struct bgp_path_info));
d62a17ae 1288 /* Route map apply. */
b787157a 1289 /* Duplicate current value to new strucutre for modification. */
40381db7
DS		 1290 rmap_path.peer = peer;
1291 rmap_path.attr = attr;
0b16f239 1292
0f672529 1293 rmap_type = peer->rmap_type;
b787157a 1294 SET_FLAG(peer->rmap_type, PEER_RMAP_TYPE_OUT);
0b16f239 1295
b787157a 1296 /* Apply BGP route map to the attribute. */
40381db7 1297 ret = route_map_apply(rmap, p, RMAP_BGP, &rmap_path);
ac41b2a2 1298
0f672529 1299 peer->rmap_type = rmap_type;
b787157a
DS		 1300
1301 if (ret == RMAP_DENYMATCH)
1302 /*
1303 * caller has multiple error paths with bgp_attr_flush()
1304 */
1305 return RMAP_DENY;
ac41b2a2 1306
d62a17ae 1307 return RMAP_PERMIT;
718e3744 1308}
6b0655a2 1309
5000f21c 1310/* If this is an EBGP peer with remove-private-AS */
d62a17ae 1311static void bgp_peer_remove_private_as(struct bgp *bgp, afi_t afi, safi_t safi,
1312 struct peer *peer, struct attr *attr)
1313{
1314 if (peer->sort == BGP_PEER_EBGP
1315 && (peer_af_flag_check(peer, afi, safi,
1316 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)
1317 || peer_af_flag_check(peer, afi, safi,
1318 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE)
1319 || peer_af_flag_check(peer, afi, safi,
1320 PEER_FLAG_REMOVE_PRIVATE_AS_ALL)
1321 || peer_af_flag_check(peer, afi, safi,
1322 PEER_FLAG_REMOVE_PRIVATE_AS))) {
1323 // Take action on the entire aspath
1324 if (peer_af_flag_check(peer, afi, safi,
1325 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)
1326 || peer_af_flag_check(peer, afi, safi,
1327 PEER_FLAG_REMOVE_PRIVATE_AS_ALL)) {
1328 if (peer_af_flag_check(
1329 peer, afi, safi,
1330 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE))
1331 attr->aspath = aspath_replace_private_asns(
1332 attr->aspath, bgp->as);
1333
1334 // The entire aspath consists of private ASNs so create
1335 // an empty aspath
1336 else if (aspath_private_as_check(attr->aspath))
1337 attr->aspath = aspath_empty_get();
1338
1339 // There are some public and some private ASNs, remove
1340 // the private ASNs
1341 else
1342 attr->aspath = aspath_remove_private_asns(
1343 attr->aspath);
1344 }
1345
1346 // 'all' was not specified so the entire aspath must be private
1347 // ASNs
1348 // for us to do anything
1349 else if (aspath_private_as_check(attr->aspath)) {
1350 if (peer_af_flag_check(
1351 peer, afi, safi,
1352 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE))
1353 attr->aspath = aspath_replace_private_asns(
1354 attr->aspath, bgp->as);
1355 else
1356 attr->aspath = aspath_empty_get();
1357 }
1358 }
5000f21c
DS		 1359}
1360
c7122e14 1361/* If this is an EBGP peer with as-override */
d62a17ae 1362static void bgp_peer_as_override(struct bgp *bgp, afi_t afi, safi_t safi,
1363 struct peer *peer, struct attr *attr)
1364{
1365 if (peer->sort == BGP_PEER_EBGP
1366 && peer_af_flag_check(peer, afi, safi, PEER_FLAG_AS_OVERRIDE)) {
1367 if (aspath_single_asn_check(attr->aspath, peer->as))
1368 attr->aspath = aspath_replace_specific_asn(
1369 attr->aspath, peer->as, bgp->as);
1370 }
1371}
1372
7f323236
DW		 1373void bgp_attr_add_gshut_community(struct attr *attr)
1374{
1375 struct community *old;
1376 struct community *new;
1377 struct community *merge;
1378 struct community *gshut;
1379
1380 old = attr->community;
1381 gshut = community_str2com("graceful-shutdown");
1382
990f4f91 1383 assert(gshut);
1384
7f323236
DW		 1385 if (old) {
1386 merge = community_merge(community_dup(old), gshut);
1387
a4d82a8a 1388 if (old->refcnt == 0)
3c1f53de 1389 community_free(&old);
7f323236
DW		 1390
1391 new = community_uniq_sort(merge);
3c1f53de 1392 community_free(&merge);
7f323236
DW		 1393 } else {
1394 new = community_dup(gshut);
1395 }
1396
3c1f53de 1397 community_free(&gshut);
7f323236
DW		 1398 attr->community = new;
1399 attr->flag |= ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES);
1400
1401 /* When we add the graceful-shutdown community we must also
1402 * lower the local-preference */
1403 attr->flag |= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF);
1404 attr->local_pref = BGP_GSHUT_LOCAL_PREF;
1405}
1406
1407
d7c0a89a 1408static void subgroup_announce_reset_nhop(uint8_t family, struct attr *attr)
c7122e14 1409{
960035b2 1410 if (family == AF_INET) {
d62a17ae 1411 attr->nexthop.s_addr = 0;
960035b2
PZ		 1412 attr->mp_nexthop_global_in.s_addr = 0;
1413 }
d62a17ae 1414 if (family == AF_INET6)
1415 memset(&attr->mp_nexthop_global, 0, IPV6_MAX_BYTELEN);
ace295a9
MK		 1416 if (family == AF_EVPN)
1417 memset(&attr->mp_nexthop_global_in, 0, BGP_ATTR_NHLEN_IPV4);
c7122e14
DS		 1418}
1419
40381db7 1420int subgroup_announce_check(struct bgp_node *rn, struct bgp_path_info *pi,
d62a17ae 1421 struct update_subgroup *subgrp, struct prefix *p,
1422 struct attr *attr)
1423{
1424 struct bgp_filter *filter;
1425 struct peer *from;
1426 struct peer *peer;
1427 struct peer *onlypeer;
1428 struct bgp *bgp;
40381db7 1429 struct attr *piattr;
d62a17ae 1430 char buf[PREFIX_STRLEN];
1431 int ret;
1432 int transparent;
1433 int reflect;
1434 afi_t afi;
1435 safi_t safi;
1436 int samepeer_safe = 0; /* for synthetic mplsvpns routes */
1437
1438 if (DISABLE_BGP_ANNOUNCE)
1439 return 0;
1440
1441 afi = SUBGRP_AFI(subgrp);
1442 safi = SUBGRP_SAFI(subgrp);
1443 peer = SUBGRP_PEER(subgrp);
1444 onlypeer = NULL;
1445 if (CHECK_FLAG(peer->flags, PEER_FLAG_LONESOUL))
1446 onlypeer = SUBGRP_PFIRST(subgrp)->peer;
1447
40381db7 1448 from = pi->peer;
d62a17ae 1449 filter = &peer->filter[afi][safi];
1450 bgp = SUBGRP_INST(subgrp);
40381db7
DS		 1451 piattr = bgp_path_info_mpath_count(pi) ? bgp_path_info_mpath_attr(pi)
1452 : pi->attr;
3f9c7369 1453
65efcfce 1454#if ENABLE_BGP_VNC
d62a17ae 1455 if (((afi == AFI_IP) || (afi == AFI_IP6)) && (safi == SAFI_MPLS_VPN)
40381db7
DS		 1456 && ((pi->type == ZEBRA_ROUTE_BGP_DIRECT)
1457 || (pi->type == ZEBRA_ROUTE_BGP_DIRECT_EXT))) {
d62a17ae 1458
1459 /*
1460 * direct and direct_ext type routes originate internally even
1461 * though they can have peer pointers that reference other
1462 * systems
1463 */
1464 prefix2str(p, buf, PREFIX_STRLEN);
1465 zlog_debug("%s: pfx %s bgp_direct->vpn route peer safe",
1466 __func__, buf);
1467 samepeer_safe = 1;
1468 }
65efcfce
LB		 1469#endif
1470
ddb5b488
PZ		 1471 if (((afi == AFI_IP) || (afi == AFI_IP6))
1472 && ((safi == SAFI_MPLS_VPN) || (safi == SAFI_UNICAST))
40381db7
DS		 1473 && (pi->type == ZEBRA_ROUTE_BGP)
1474 && (pi->sub_type == BGP_ROUTE_IMPORTED)) {
ddb5b488
PZ		 1475
1476 /* Applies to routes leaked vpn->vrf and vrf->vpn */
1477
1478 samepeer_safe = 1;
1479 }
1480
d62a17ae 1481 /* With addpath we may be asked to TX all kinds of paths so make sure
40381db7
DS		 1482 * pi is valid */
1483 if (!CHECK_FLAG(pi->flags, BGP_PATH_VALID)
1484 || CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)
1485 || CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) {
d62a17ae 1486 return 0;
1487 }
adbac85e 1488
d62a17ae 1489 /* If this is not the bestpath then check to see if there is an enabled
1490 * addpath
1491 * feature that requires us to advertise it */
40381db7 1492 if (!CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) {
dcc68b5e 1493 if (!bgp_addpath_tx_path(peer->addpath_type[afi][safi], pi)) {
d62a17ae 1494 return 0;
1495 }
1496 }
06370dac 1497
d62a17ae 1498 /* Aggregate-address suppress check. */
40381db7 1499 if (pi->extra && pi->extra->suppress)
d62a17ae 1500 if (!UNSUPPRESS_MAP_NAME(filter)) {
1501 return 0;
1502 }
3f9c7369 1503
13b7e7f0
DS		 1504 /*
1505 * If we are doing VRF 2 VRF leaking via the import
1506 * statement, we want to prevent the route going
1507 * off box as that the RT and RD created are localy
1508 * significant and globaly useless.
1509 */
40381db7
DS		 1510 if (safi == SAFI_MPLS_VPN && pi->extra && pi->extra->num_labels
1511 && pi->extra->label[0] == BGP_PREVENT_VRF_2_VRF_LEAK)
13b7e7f0
DS		 1512 return 0;
1513
d62a17ae 1514 /* If it's labeled safi, make sure the route has a valid label. */
1515 if (safi == SAFI_LABELED_UNICAST) {
40381db7 1516 mpls_label_t label = bgp_adv_label(rn, pi, peer, afi, safi);
d62a17ae 1517 if (!bgp_is_valid_label(&label)) {
1518 if (bgp_debug_update(NULL, p, subgrp->update_group, 0))
1519 zlog_debug("u%" PRIu64 ":s%" PRIu64
1520 " %s/%d is filtered - no label (%p)",
1521 subgrp->update_group->id, subgrp->id,
1522 inet_ntop(p->family, &p->u.prefix,
1523 buf, SU_ADDRSTRLEN),
1524 p->prefixlen, &label);
1525 return 0;
1526 }
1527 }
cd1964ff 1528
d62a17ae 1529 /* Do not send back route to sender. */
1530 if (onlypeer && from == onlypeer) {
1531 return 0;
1532 }
3f9c7369 1533
d62a17ae 1534 /* Do not send the default route in the BGP table if the neighbor is
1535 * configured for default-originate */
1536 if (CHECK_FLAG(peer->af_flags[afi][safi],
1537 PEER_FLAG_DEFAULT_ORIGINATE)) {
1538 if (p->family == AF_INET && p->u.prefix4.s_addr == INADDR_ANY)
1539 return 0;
1540 else if (p->family == AF_INET6 && p->prefixlen == 0)
1541 return 0;
1542 }
4125bb67 1543
d62a17ae 1544 /* Transparency check. */
1545 if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_RSERVER_CLIENT)
1546 && CHECK_FLAG(from->af_flags[afi][safi], PEER_FLAG_RSERVER_CLIENT))
1547 transparent = 1;
1548 else
1549 transparent = 0;
1550
1551 /* If community is not disabled check the no-export and local. */
40381db7 1552 if (!transparent && bgp_community_filter(peer, piattr)) {
d62a17ae 1553 if (bgp_debug_update(NULL, p, subgrp->update_group, 0))
1554 zlog_debug(
1555 "subgrpannouncecheck: community filter check fail");
1556 return 0;
1557 }
3f9c7369 1558
d62a17ae 1559 /* If the attribute has originator-id and it is same as remote
1560 peer's id. */
40381db7
DS		 1561 if (onlypeer && piattr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)
1562 && (IPV4_ADDR_SAME(&onlypeer->remote_id, &piattr->originator_id))) {
d62a17ae 1563 if (bgp_debug_update(NULL, p, subgrp->update_group, 0))
1564 zlog_debug(
1565 "%s [Update:SEND] %s originator-id is same as "
1566 "remote router-id",
1567 onlypeer->host,
1568 prefix2str(p, buf, sizeof(buf)));
1569 return 0;
1570 }
3f9c7369 1571
d62a17ae 1572 /* ORF prefix-list filter check */
1573 if (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_ADV)
1574 && (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_RCV)
1575 || CHECK_FLAG(peer->af_cap[afi][safi],
1576 PEER_CAP_ORF_PREFIX_SM_OLD_RCV)))
1577 if (peer->orf_plist[afi][safi]) {
1578 if (prefix_list_apply(peer->orf_plist[afi][safi], p)
1579 == PREFIX_DENY) {
1580 if (bgp_debug_update(NULL, p,
1581 subgrp->update_group, 0))
1582 zlog_debug(
1583 "%s [Update:SEND] %s is filtered via ORF",
1584 peer->host,
1585 prefix2str(p, buf,
1586 sizeof(buf)));
1587 return 0;
1588 }
1589 }
1590
1591 /* Output filter check. */
40381db7 1592 if (bgp_output_filter(peer, p, piattr, afi, safi) == FILTER_DENY) {
d62a17ae 1593 if (bgp_debug_update(NULL, p, subgrp->update_group, 0))
1594 zlog_debug("%s [Update:SEND] %s is filtered",
1595 peer->host, prefix2str(p, buf, sizeof(buf)));
1596 return 0;
1597 }
3f9c7369
DS		 1598
1599#ifdef BGP_SEND_ASPATH_CHECK
d62a17ae 1600 /* AS path loop check. */
40381db7 1601 if (onlypeer && aspath_loop_check(piattr->aspath, onlypeer->as)) {
d62a17ae 1602 if (bgp_debug_update(NULL, p, subgrp->update_group, 0))
1603 zlog_debug(
1604 "%s [Update:SEND] suppress announcement to peer AS %u "
1605 "that is part of AS path.",
1606 onlypeer->host, onlypeer->as);
1607 return 0;
1608 }
3f9c7369
DS		 1609#endif /* BGP_SEND_ASPATH_CHECK */
1610
d62a17ae 1611 /* If we're a CONFED we need to loop check the CONFED ID too */
1612 if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) {
40381db7 1613 if (aspath_loop_check(piattr->aspath, bgp->confed_id)) {
d62a17ae 1614 if (bgp_debug_update(NULL, p, subgrp->update_group, 0))
1615 zlog_debug(
1616 "%s [Update:SEND] suppress announcement to peer AS %u"
1617 " is AS path.",
1618 peer->host, bgp->confed_id);
1619 return 0;
1620 }
3f9c7369 1621 }
3f9c7369 1622
d62a17ae 1623 /* Route-Reflect check. */
1624 if (from->sort == BGP_PEER_IBGP && peer->sort == BGP_PEER_IBGP)
1625 reflect = 1;
1626 else
1627 reflect = 0;
1628
1629 /* IBGP reflection check. */
1630 if (reflect && !samepeer_safe) {
1631 /* A route from a Client peer. */
1632 if (CHECK_FLAG(from->af_flags[afi][safi],
1633 PEER_FLAG_REFLECTOR_CLIENT)) {
1634 /* Reflect to all the Non-Client peers and also to the
1635 Client peers other than the originator. Originator
1636 check
1637 is already done. So there is noting to do. */
1638 /* no bgp client-to-client reflection check. */
1639 if (bgp_flag_check(bgp, BGP_FLAG_NO_CLIENT_TO_CLIENT))
1640 if (CHECK_FLAG(peer->af_flags[afi][safi],
1641 PEER_FLAG_REFLECTOR_CLIENT))
1642 return 0;
1643 } else {
1644 /* A route from a Non-client peer. Reflect to all other
1645 clients. */
1646 if (!CHECK_FLAG(peer->af_flags[afi][safi],
1647 PEER_FLAG_REFLECTOR_CLIENT))
1648 return 0;
1649 }
1650 }
3f9c7369 1651
d62a17ae 1652 /* For modify attribute, copy it to temporary structure. */
40381db7 1653 bgp_attr_dup(attr, piattr);
d62a17ae 1654
1655 /* If local-preference is not set. */
1656 if ((peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED)
1657 && (!(attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)))) {
1658 attr->flag |= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF);
1659 attr->local_pref = bgp->default_local_pref;
3f9c7369 1660 }
3f9c7369 1661
d62a17ae 1662 /* If originator-id is not set and the route is to be reflected,
1663 set the originator id */
1664 if (reflect
1665 && (!(attr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)))) {
1666 IPV4_ADDR_COPY(&(attr->originator_id), &(from->remote_id));
1667 SET_FLAG(attr->flag, BGP_ATTR_ORIGINATOR_ID);
1668 }
3f9c7369 1669
d62a17ae 1670 /* Remove MED if its an EBGP peer - will get overwritten by route-maps
1671 */
1672 if (peer->sort == BGP_PEER_EBGP
1673 && attr->flag & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)) {
1674 if (from != bgp->peer_self && !transparent
1675 && !CHECK_FLAG(peer->af_flags[afi][safi],
1676 PEER_FLAG_MED_UNCHANGED))
1677 attr->flag &=
1678 ~(ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC));
1679 }
3f9c7369 1680
d62a17ae 1681 /* Since the nexthop attribute can vary per peer, it is not explicitly
1682 * set
1683 * in announce check, only certain flags and length (or number of
1684 * nexthops
1685 * -- for IPv6/MP_REACH) are set here in order to guide the update
1686 * formation
1687 * code in setting the nexthop(s) on a per peer basis in
1688 * reformat_peer().
1689 * Typically, the source nexthop in the attribute is preserved but in
1690 * the
1691 * scenarios where we know it will always be overwritten, we reset the
1692 * nexthop to "0" in an attempt to achieve better Update packing. An
1693 * example of this is when a prefix from each of 2 IBGP peers needs to
1694 * be
1695 * announced to an EBGP peer (and they have the same attributes barring
1696 * their nexthop).
1697 */
1698 if (reflect)
1699 SET_FLAG(attr->rmap_change_flags, BATTR_REFLECTED);
1700
1701#define NEXTHOP_IS_V6 \
1702 ((safi != SAFI_ENCAP && safi != SAFI_MPLS_VPN \
1703 && (p->family == AF_INET6 || peer_cap_enhe(peer, afi, safi))) \
1704 || ((safi == SAFI_ENCAP || safi == SAFI_MPLS_VPN) \
1705 && attr->mp_nexthop_len >= IPV6_MAX_BYTELEN))
1706
1707 /* IPv6/MP starts with 1 nexthop. The link-local address is passed only
1708 * if
1709 * the peer (group) is configured to receive link-local nexthop
1710 * unchanged
1711 * and it is available in the prefix OR we're not reflecting the route
1712 * and
1713 * the peer (group) to whom we're going to announce is on a shared
1714 * network
1715 * and this is either a self-originated route or the peer is EBGP.
1716 */
1717 if (NEXTHOP_IS_V6) {
1718 attr->mp_nexthop_len = BGP_ATTR_NHLEN_IPV6_GLOBAL;
1719 if ((CHECK_FLAG(peer->af_flags[afi][safi],
1720 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED)
1721 && IN6_IS_ADDR_LINKLOCAL(&attr->mp_nexthop_local))
1722 || (!reflect && peer->shared_network
1723 && (from == bgp->peer_self
1724 || peer->sort == BGP_PEER_EBGP))) {
1725 attr->mp_nexthop_len =
1726 BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL;
1727 }
3f9c7369 1728
d62a17ae 1729 /* Clear off link-local nexthop in source, whenever it is not
1730 * needed to
1731 * ensure more prefixes share the same attribute for
1732 * announcement.
1733 */
1734 if (!(CHECK_FLAG(peer->af_flags[afi][safi],
1735 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED)))
1736 memset(&attr->mp_nexthop_local, 0, IPV6_MAX_BYTELEN);
1737 }
3f9c7369 1738
d62a17ae 1739 bgp_peer_remove_private_as(bgp, afi, safi, peer, attr);
1740 bgp_peer_as_override(bgp, afi, safi, peer, attr);
1741
1742 /* Route map & unsuppress-map apply. */
40381db7
DS		 1743 if (ROUTE_MAP_OUT_NAME(filter) || (pi->extra && pi->extra->suppress)) {
1744 struct bgp_path_info rmap_path;
1745 struct bgp_path_info_extra dummy_rmap_path_extra;
d62a17ae 1746 struct attr dummy_attr;
1747
40381db7
DS		 1748 memset(&rmap_path, 0, sizeof(struct bgp_path_info));
1749 rmap_path.peer = peer;
1750 rmap_path.attr = attr;
d37ba549 1751
40381db7
DS		 1752 if (pi->extra) {
1753 memcpy(&dummy_rmap_path_extra, pi->extra,
4b7e6066 1754 sizeof(struct bgp_path_info_extra));
40381db7 1755 rmap_path.extra = &dummy_rmap_path_extra;
16f7ce2b
MK		 1756 }
1757
d62a17ae 1758 /* don't confuse inbound and outbound setting */
1759 RESET_FLAG(attr->rmap_change_flags);
1760
1761 /*
1762 * The route reflector is not allowed to modify the attributes
1763 * of the reflected IBGP routes unless explicitly allowed.
1764 */
1765 if ((from->sort == BGP_PEER_IBGP && peer->sort == BGP_PEER_IBGP)
1766 && !bgp_flag_check(bgp,
1767 BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY)) {
1768 bgp_attr_dup(&dummy_attr, attr);
40381db7 1769 rmap_path.attr = &dummy_attr;
d62a17ae 1770 }
3f9c7369 1771
d62a17ae 1772 SET_FLAG(peer->rmap_type, PEER_RMAP_TYPE_OUT);
3f9c7369 1773
40381db7 1774 if (pi->extra && pi->extra->suppress)
d62a17ae 1775 ret = route_map_apply(UNSUPPRESS_MAP(filter), p,
40381db7 1776 RMAP_BGP, &rmap_path);
d62a17ae 1777 else
1778 ret = route_map_apply(ROUTE_MAP_OUT(filter), p,
40381db7 1779 RMAP_BGP, &rmap_path);
d62a17ae 1780
1781 peer->rmap_type = 0;
1782
1783 if (ret == RMAP_DENYMATCH) {
1784 bgp_attr_flush(attr);
1785 return 0;
1786 }
3f9c7369 1787 }
3f9c7369 1788
9dac9fc8
DA		 1789 /* RFC 8212 to prevent route leaks.
1790 * This specification intends to improve this situation by requiring the
1791 * explicit configuration of both BGP Import and Export Policies for any
1792 * External BGP (EBGP) session such as customers, peers, or
1793 * confederation boundaries for all enabled address families. Through
1794 * codification of the aforementioned requirement, operators will
1795 * benefit from consistent behavior across different BGP
1796 * implementations.
1797 */
1798 if (peer->bgp->ebgp_requires_policy
1799 == DEFAULT_EBGP_POLICY_ENABLED)
1800 if (!bgp_outbound_policy_exists(peer, filter))
1801 return 0;
1802
7f323236 1803 if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) {
a4d82a8a
PZ		 1804 if (peer->sort == BGP_PEER_IBGP
1805 || peer->sort == BGP_PEER_CONFED) {
7f323236
DW		 1806 attr->flag |= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF);
1807 attr->local_pref = BGP_GSHUT_LOCAL_PREF;
1808 } else {
1809 bgp_attr_add_gshut_community(attr);
1810 }
1811 }
1812
d62a17ae 1813 /* After route-map has been applied, we check to see if the nexthop to
1814 * be carried in the attribute (that is used for the announcement) can
1815 * be cleared off or not. We do this in all cases where we would be
1816 * setting the nexthop to "ourselves". For IPv6, we only need to
1817 * consider
1818 * the global nexthop here; the link-local nexthop would have been
1819 * cleared
1820 * already, and if not, it is required by the update formation code.
1821 * Also see earlier comments in this function.
1822 */
1823 /*
1824 * If route-map has performed some operation on the nexthop or the peer
1825 * configuration says to pass it unchanged, we cannot reset the nexthop
1826 * here, so only attempt to do it if these aren't true. Note that the
1827 * route-map handler itself might have cleared the nexthop, if for
1828 * example,
1829 * it is configured as 'peer-address'.
1830 */
1831 if (!bgp_rmap_nhop_changed(attr->rmap_change_flags,
40381db7 1832 piattr->rmap_change_flags)
d62a17ae 1833 && !transparent
1834 && !CHECK_FLAG(peer->af_flags[afi][safi],
1835 PEER_FLAG_NEXTHOP_UNCHANGED)) {
1836 /* We can reset the nexthop, if setting (or forcing) it to
1837 * 'self' */
1838 if (CHECK_FLAG(peer->af_flags[afi][safi],
1839 PEER_FLAG_NEXTHOP_SELF)
1840 || CHECK_FLAG(peer->af_flags[afi][safi],
1841 PEER_FLAG_FORCE_NEXTHOP_SELF)) {
1842 if (!reflect
1843 || CHECK_FLAG(peer->af_flags[afi][safi],
1844 PEER_FLAG_FORCE_NEXTHOP_SELF))
1845 subgroup_announce_reset_nhop(
1846 (peer_cap_enhe(peer, afi, safi)
1847 ? AF_INET6
1848 : p->family),
1849 attr);
1850 } else if (peer->sort == BGP_PEER_EBGP) {
1851 /* Can also reset the nexthop if announcing to EBGP, but
1852 * only if
1853 * no peer in the subgroup is on a shared subnet.
1854 * Note: 3rd party nexthop currently implemented for
1855 * IPv4 only.
1856 */
40381db7 1857 if (!bgp_subgrp_multiaccess_check_v4(piattr->nexthop,
65d4e0c6 1858 subgrp))
d62a17ae 1859 subgroup_announce_reset_nhop(
1860 (peer_cap_enhe(peer, afi, safi)
a4d82a8a
PZ		 1861 ? AF_INET6
1862 : p->family),
d62a17ae 1863 attr);
40381db7 1864 } else if (CHECK_FLAG(pi->flags, BGP_PATH_ANNC_NH_SELF)) {
960035b2
PZ		 1865 /*
1866 * This flag is used for leaked vpn-vrf routes
1867 */
1868 int family = p->family;
1869
1870 if (peer_cap_enhe(peer, afi, safi))
1871 family = AF_INET6;
1872
1873 if (bgp_debug_update(NULL, p, subgrp->update_group, 0))
1874 zlog_debug(
1defdda8 1875 "%s: BGP_PATH_ANNC_NH_SELF, family=%s",
960035b2
PZ		 1876 __func__, family2str(family));
1877 subgroup_announce_reset_nhop(family, attr);
d62a17ae 1878 }
960035b2 1879
d62a17ae 1880 /* If IPv6/MP and nexthop does not have any override and happens
1881 * to
1882 * be a link-local address, reset it so that we don't pass along
1883 * the
1884 * source's link-local IPv6 address to recipients who may not be
1885 * on
1886 * the same interface.
1887 */
1888 if (p->family == AF_INET6 || peer_cap_enhe(peer, afi, safi)) {
1889 if (IN6_IS_ADDR_LINKLOCAL(&attr->mp_nexthop_global))
1890 subgroup_announce_reset_nhop(AF_INET6, attr);
1891 }
1892 }
3f9c7369 1893
d62a17ae 1894 return 1;
3f9c7369
DS		 1895}
1896
d62a17ae 1897void bgp_best_selection(struct bgp *bgp, struct bgp_node *rn,
1898 struct bgp_maxpaths_cfg *mpath_cfg,
4b7e6066
DS		 1899 struct bgp_path_info_pair *result, afi_t afi,
1900 safi_t safi)
1901{
1902 struct bgp_path_info *new_select;
1903 struct bgp_path_info *old_select;
40381db7
DS		 1904 struct bgp_path_info *pi;
1905 struct bgp_path_info *pi1;
1906 struct bgp_path_info *pi2;
1907 struct bgp_path_info *nextpi = NULL;
d62a17ae 1908 int paths_eq, do_mpath, debug;
1909 struct list mp_list;
1910 char pfx_buf[PREFIX2STR_BUFFER];
1911 char path_buf[PATH_ADDPATH_STR_BUFFER];
1912
1913 bgp_mp_list_init(&mp_list);
1914 do_mpath =
1915 (mpath_cfg->maxpaths_ebgp > 1 || mpath_cfg->maxpaths_ibgp > 1);
1916
1917 debug = bgp_debug_bestpath(&rn->p);
1918
1919 if (debug)
1920 prefix2str(&rn->p, pfx_buf, sizeof(pfx_buf));
1921
1922 /* bgp deterministic-med */
1923 new_select = NULL;
1924 if (bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED)) {
1925
1defdda8 1926 /* Clear BGP_PATH_DMED_SELECTED for all paths */
6f94b685
DS		 1927 for (pi1 = bgp_node_get_bgp_path_info(rn); pi1;
1928 pi1 = pi1->next)
40381db7 1929 bgp_path_info_unset_flag(rn, pi1,
18ee8310 1930 BGP_PATH_DMED_SELECTED);
d62a17ae 1931
6f94b685
DS		 1932 for (pi1 = bgp_node_get_bgp_path_info(rn); pi1;
1933 pi1 = pi1->next) {
40381db7 1934 if (CHECK_FLAG(pi1->flags, BGP_PATH_DMED_CHECK))
d62a17ae 1935 continue;
40381db7 1936 if (BGP_PATH_HOLDDOWN(pi1))
d62a17ae 1937 continue;
ea8b2282 1938 if (pi1->peer != bgp->peer_self)
40381db7 1939 if (pi1->peer->status != Established)
d62a17ae 1940 continue;
1941
40381db7
DS		 1942 new_select = pi1;
1943 if (pi1->next) {
1944 for (pi2 = pi1->next; pi2; pi2 = pi2->next) {
1945 if (CHECK_FLAG(pi2->flags,
1defdda8 1946 BGP_PATH_DMED_CHECK))
d62a17ae 1947 continue;
40381db7 1948 if (BGP_PATH_HOLDDOWN(pi2))
d62a17ae 1949 continue;
ea8b2282 1950 if (pi2->peer != bgp->peer_self
d62a17ae 1951 && !CHECK_FLAG(
ea8b2282
DS		 1952 pi2->peer->sflags,
1953 PEER_STATUS_NSF_WAIT))
40381db7 1954 if (pi2->peer->status
d62a17ae 1955 != Established)
1956 continue;
1957
121e245d
DS		 1958 if (!aspath_cmp_left(pi1->attr->aspath,
1959 pi2->attr->aspath)
1960 && !aspath_cmp_left_confed(
40381db7 1961 pi1->attr->aspath,
121e245d
DS		 1962 pi2->attr->aspath))
1963 continue;
d62a17ae 1964
121e245d
DS		 1965 if (bgp_path_info_cmp(
1966 bgp, pi2, new_select,
1967 &paths_eq, mpath_cfg, debug,
1968 pfx_buf, afi, safi)) {
1969 bgp_path_info_unset_flag(
1970 rn, new_select,
1971 BGP_PATH_DMED_SELECTED);
1972 new_select = pi2;
d62a17ae 1973 }
121e245d
DS		 1974
1975 bgp_path_info_set_flag(
1976 rn, pi2, BGP_PATH_DMED_CHECK);
d62a17ae 1977 }
1978 }
18ee8310
DS		 1979 bgp_path_info_set_flag(rn, new_select,
1980 BGP_PATH_DMED_CHECK);
1981 bgp_path_info_set_flag(rn, new_select,
1982 BGP_PATH_DMED_SELECTED);
d62a17ae 1983
1984 if (debug) {
18ee8310
DS		 1985 bgp_path_info_path_with_addpath_rx_str(
1986 new_select, path_buf);
c66faab1 1987 zlog_debug("%s: %s is the bestpath from AS %u",
d62a17ae 1988 pfx_buf, path_buf,
1989 aspath_get_first_as(
1990 new_select->attr->aspath));
1991 }
1992 }
1993 }
96450faf 1994
d62a17ae 1995 /* Check old selected route and new selected route. */
1996 old_select = NULL;
1997 new_select = NULL;
6f94b685
DS		 1998 for (pi = bgp_node_get_bgp_path_info(rn);
1999 (pi != NULL) && (nextpi = pi->next, 1); pi = nextpi) {
40381db7
DS		 2000 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED))
2001 old_select = pi;
d62a17ae 2002
40381db7 2003 if (BGP_PATH_HOLDDOWN(pi)) {
d62a17ae 2004 /* reap REMOVED routes, if needs be
2005 * selected route must stay for a while longer though
2006 */
40381db7
DS		 2007 if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)
2008 && (pi != old_select))
2009 bgp_path_info_reap(rn, pi);
d62a17ae 2010
ddb5b488 2011 if (debug)
40381db7
DS		 2012 zlog_debug("%s: pi %p in holddown", __func__,
2013 pi);
ddb5b488 2014
d62a17ae 2015 continue;
2016 }
96450faf 2017
40381db7
DS		 2018 if (pi->peer && pi->peer != bgp->peer_self
2019 && !CHECK_FLAG(pi->peer->sflags, PEER_STATUS_NSF_WAIT))
2020 if (pi->peer->status != Established) {
ddb5b488
PZ		 2021
2022 if (debug)
2023 zlog_debug(
40381db7
DS		 2024 "%s: pi %p non self peer %s not estab state",
2025 __func__, pi, pi->peer->host);
ddb5b488 2026
d62a17ae 2027 continue;
ddb5b488 2028 }
9fbdd100 2029
d62a17ae 2030 if (bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED)
40381db7
DS		 2031 && (!CHECK_FLAG(pi->flags, BGP_PATH_DMED_SELECTED))) {
2032 bgp_path_info_unset_flag(rn, pi, BGP_PATH_DMED_CHECK);
ddb5b488 2033 if (debug)
40381db7 2034 zlog_debug("%s: pi %p dmed", __func__, pi);
d62a17ae 2035 continue;
2036 }
9fbdd100 2037
40381db7 2038 bgp_path_info_unset_flag(rn, pi, BGP_PATH_DMED_CHECK);
06370dac 2039
40381db7 2040 if (bgp_path_info_cmp(bgp, pi, new_select, &paths_eq, mpath_cfg,
18ee8310 2041 debug, pfx_buf, afi, safi)) {
40381db7 2042 new_select = pi;
d62a17ae 2043 }
2044 }
718e3744 2045
d62a17ae 2046 /* Now that we know which path is the bestpath see if any of the other
2047 * paths
2048 * qualify as multipaths
2049 */
2050 if (debug) {
2051 if (new_select)
18ee8310
DS		 2052 bgp_path_info_path_with_addpath_rx_str(new_select,
2053 path_buf);
d62a17ae 2054 else
2055 sprintf(path_buf, "NONE");
2056 zlog_debug(
2057 "%s: After path selection, newbest is %s oldbest was %s",
2058 pfx_buf, path_buf,
2059 old_select ? old_select->peer->host : "NONE");
96450faf 2060 }
9fbdd100 2061
d62a17ae 2062 if (do_mpath && new_select) {
6f94b685
DS		 2063 for (pi = bgp_node_get_bgp_path_info(rn);
2064 (pi != NULL) && (nextpi = pi->next, 1); pi = nextpi) {
d62a17ae 2065
2066 if (debug)
18ee8310 2067 bgp_path_info_path_with_addpath_rx_str(
40381db7 2068 pi, path_buf);
d62a17ae 2069
40381db7 2070 if (pi == new_select) {
d62a17ae 2071 if (debug)
2072 zlog_debug(
2073 "%s: %s is the bestpath, add to the multipath list",
2074 pfx_buf, path_buf);
40381db7 2075 bgp_mp_list_add(&mp_list, pi);
d62a17ae 2076 continue;
2077 }
2078
40381db7 2079 if (BGP_PATH_HOLDDOWN(pi))
d62a17ae 2080 continue;
2081
40381db7
DS		 2082 if (pi->peer && pi->peer != bgp->peer_self
2083 && !CHECK_FLAG(pi->peer->sflags,
d62a17ae 2084 PEER_STATUS_NSF_WAIT))
40381db7 2085 if (pi->peer->status != Established)
d62a17ae 2086 continue;
2087
40381db7 2088 if (!bgp_path_info_nexthop_cmp(pi, new_select)) {
d62a17ae 2089 if (debug)
2090 zlog_debug(
2091 "%s: %s has the same nexthop as the bestpath, skip it",
2092 pfx_buf, path_buf);
2093 continue;
2094 }
2095
40381db7 2096 bgp_path_info_cmp(bgp, pi, new_select, &paths_eq,
18ee8310 2097 mpath_cfg, debug, pfx_buf, afi, safi);
d62a17ae 2098
2099 if (paths_eq) {
2100 if (debug)
2101 zlog_debug(
2102 "%s: %s is equivalent to the bestpath, add to the multipath list",
2103 pfx_buf, path_buf);
40381db7 2104 bgp_mp_list_add(&mp_list, pi);
d62a17ae 2105 }
2106 }
2107 }
fee0f4c6 2108
18ee8310
DS		 2109 bgp_path_info_mpath_update(rn, new_select, old_select, &mp_list,
2110 mpath_cfg);
2111 bgp_path_info_mpath_aggregate_update(new_select, old_select);
d62a17ae 2112 bgp_mp_list_clear(&mp_list);
96450faf 2113
dcc68b5e
MS		 2114 bgp_addpath_update_ids(bgp, rn, afi, safi);
2115
d62a17ae 2116 result->old = old_select;
2117 result->new = new_select;
96450faf 2118
d62a17ae 2119 return;
fee0f4c6 2120}
2121
3f9c7369
DS		 2122/*
2123 * A new route/change in bestpath of an existing route. Evaluate the path
2124 * for advertisement to the subgroup.
2125 */
d62a17ae 2126int subgroup_process_announce_selected(struct update_subgroup *subgrp,
4b7e6066 2127 struct bgp_path_info *selected,
d62a17ae 2128 struct bgp_node *rn,
d7c0a89a 2129 uint32_t addpath_tx_id)
d62a17ae 2130{
2131 struct prefix *p;
2132 struct peer *onlypeer;
2133 struct attr attr;
2134 afi_t afi;
2135 safi_t safi;
adbac85e 2136
d62a17ae 2137 p = &rn->p;
2138 afi = SUBGRP_AFI(subgrp);
2139 safi = SUBGRP_SAFI(subgrp);
2140 onlypeer = ((SUBGRP_PCOUNT(subgrp) == 1) ? (SUBGRP_PFIRST(subgrp))->peer
2141 : NULL);
2142
e0207895
PZ		 2143 if (BGP_DEBUG(update, UPDATE_OUT)) {
2144 char buf_prefix[PREFIX_STRLEN];
2145 prefix2str(p, buf_prefix, sizeof(buf_prefix));
ddb5b488
PZ		 2146 zlog_debug("%s: p=%s, selected=%p", __func__, buf_prefix,
2147 selected);
e0207895
PZ		 2148 }
2149
d62a17ae 2150 /* First update is deferred until ORF or ROUTE-REFRESH is received */
996c9314
LB		 2151 if (onlypeer && CHECK_FLAG(onlypeer->af_sflags[afi][safi],
2152 PEER_STATUS_ORF_WAIT_REFRESH))
d62a17ae 2153 return 0;
2154
2155 memset(&attr, 0, sizeof(struct attr));
2156 /* It's initialized in bgp_announce_check() */
2157
2158 /* Announcement to the subgroup. If the route is filtered withdraw it.
2159 */
2160 if (selected) {
2161 if (subgroup_announce_check(rn, selected, subgrp, p, &attr))
2162 bgp_adj_out_set_subgroup(rn, subgrp, &attr, selected);
2163 else
2164 bgp_adj_out_unset_subgroup(rn, subgrp, 1,
dcc68b5e 2165 addpath_tx_id);
d62a17ae 2166 }
2167
2168 /* If selected is NULL we must withdraw the path using addpath_tx_id */
2169 else {
2170 bgp_adj_out_unset_subgroup(rn, subgrp, 1, addpath_tx_id);
2171 }
558d1fec 2172
d62a17ae 2173 return 0;
200df115 2174}
fee0f4c6 2175
3064bf43 2176/*
e1072051 2177 * Clear IGP changed flag and attribute changed flag for a route (all paths).
2178 * This is called at the end of route processing.
3064bf43 2179 */
d62a17ae 2180void bgp_zebra_clear_route_change_flags(struct bgp_node *rn)
3064bf43 2181{
40381db7 2182 struct bgp_path_info *pi;
3064bf43 2183
6f94b685 2184 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
40381db7 2185 if (BGP_PATH_HOLDDOWN(pi))
d62a17ae 2186 continue;
40381db7
DS		 2187 UNSET_FLAG(pi->flags, BGP_PATH_IGP_CHANGED);
2188 UNSET_FLAG(pi->flags, BGP_PATH_ATTR_CHANGED);
d62a17ae 2189 }
3064bf43 2190}
2191
2192/*
2193 * Has the route changed from the RIB's perspective? This is invoked only
2194 * if the route selection returns the same best route as earlier - to
2195 * determine if we need to update zebra or not.
2196 */
4b7e6066
DS		 2197int bgp_zebra_has_route_changed(struct bgp_node *rn,
2198 struct bgp_path_info *selected)
d62a17ae 2199{
4b7e6066 2200 struct bgp_path_info *mpinfo;
d62a17ae 2201
2bb9eff4
DS		 2202 /* If this is multipath, check all selected paths for any nexthop
2203 * change or attribute change. Some attribute changes (e.g., community)
2204 * aren't of relevance to the RIB, but we'll update zebra to ensure
2205 * we handle the case of BGP nexthop change. This is the behavior
2206 * when the best path has an attribute change anyway.
d62a17ae 2207 */
1defdda8
DS		 2208 if (CHECK_FLAG(selected->flags, BGP_PATH_IGP_CHANGED)
2209 || CHECK_FLAG(selected->flags, BGP_PATH_MULTIPATH_CHG))
d62a17ae 2210 return 1;
2211
2bb9eff4
DS		 2212 /*
2213 * If this is multipath, check all selected paths for any nexthop change
d62a17ae 2214 */
18ee8310
DS		 2215 for (mpinfo = bgp_path_info_mpath_first(selected); mpinfo;
2216 mpinfo = bgp_path_info_mpath_next(mpinfo)) {
1defdda8
DS		 2217 if (CHECK_FLAG(mpinfo->flags, BGP_PATH_IGP_CHANGED)
2218 || CHECK_FLAG(mpinfo->flags, BGP_PATH_ATTR_CHANGED))
d62a17ae 2219 return 1;
2220 }
3064bf43 2221
d62a17ae 2222 /* Nothing has changed from the RIB's perspective. */
2223 return 0;
3064bf43 2224}
2225
d62a17ae 2226struct bgp_process_queue {
2227 struct bgp *bgp;
a4d82a8a 2228 STAILQ_HEAD(, bgp_node) pqueue;
aac24838
JB		 2229#define BGP_PROCESS_QUEUE_EOIU_MARKER (1 << 0)
2230 unsigned int flags;
2231 unsigned int queued;
200df115 2232};
2233
3103e8d2
DS		 2234/*
2235 * old_select = The old best path
2236 * new_select = the new best path
2237 *
2238 * if (!old_select && new_select)
2239 * We are sending new information on.
2240 *
2241 * if (old_select && new_select) {
2242 * if (new_select != old_select)
2243 * We have a new best path send a change
2244 * else
2245 * We've received a update with new attributes that needs
2246 * to be passed on.
2247 * }
2248 *
2249 * if (old_select && !new_select)
2250 * We have no eligible route that we can announce or the rn
2251 * is being removed.
2252 */
aac24838
JB		 2253static void bgp_process_main_one(struct bgp *bgp, struct bgp_node *rn,
2254 afi_t afi, safi_t safi)
d62a17ae 2255{
4b7e6066
DS		 2256 struct bgp_path_info *new_select;
2257 struct bgp_path_info *old_select;
2258 struct bgp_path_info_pair old_and_new;
ddb5b488
PZ		 2259 char pfx_buf[PREFIX2STR_BUFFER];
2260 int debug = 0;
d62a17ae 2261
2262 /* Is it end of initial update? (after startup) */
2263 if (!rn) {
2264 quagga_timestamp(3, bgp->update_delay_zebra_resume_time,
2265 sizeof(bgp->update_delay_zebra_resume_time));
2266
2267 bgp->main_zebra_update_hold = 0;
05c7a1cc
QY		 2268 FOREACH_AFI_SAFI (afi, safi) {
2269 if (bgp_fibupd_safi(safi))
2270 bgp_zebra_announce_table(bgp, afi, safi);
2271 }
d62a17ae 2272 bgp->main_peers_update_hold = 0;
2273
2274 bgp_start_routeadv(bgp);
aac24838 2275 return;
d62a17ae 2276 }
cb1faec9 2277
b575a12c
A		 2278 struct prefix *p = &rn->p;
2279
ddb5b488
PZ		 2280 debug = bgp_debug_bestpath(&rn->p);
2281 if (debug) {
2282 prefix2str(&rn->p, pfx_buf, sizeof(pfx_buf));
2283 zlog_debug("%s: p=%s afi=%s, safi=%s start", __func__, pfx_buf,
2284 afi2str(afi), safi2str(safi));
2285 }
2286
d62a17ae 2287 /* Best path selection. */
2288 bgp_best_selection(bgp, rn, &bgp->maxpaths[afi][safi], &old_and_new,
2289 afi, safi);
2290 old_select = old_and_new.old;
2291 new_select = old_and_new.new;
2292
2293 /* Do we need to allocate or free labels?
2294 * Right now, since we only deal with per-prefix labels, it is not
57592a53
AD		 2295 * necessary to do this upon changes to best path. Exceptions:
2296 * - label index has changed -> recalculate resulting label
2297 * - path_info sub_type changed -> switch to/from implicit-null
2298 * - no valid label (due to removed static label binding) -> get new one
d62a17ae 2299 */
318cac96 2300 if (bgp->allocate_mpls_labels[afi][safi]) {
d62a17ae 2301 if (new_select) {
2302 if (!old_select
2303 || bgp_label_index_differs(new_select, old_select)
57592a53
AD		 2304 || new_select->sub_type != old_select->sub_type
2305 || !bgp_is_valid_label(&rn->local_label)) {
2306 /* Enforced penultimate hop popping:
2307 * implicit-null for local routes, aggregate
2308 * and redistributed routes
2309 */
d62a17ae 2310 if (new_select->sub_type == BGP_ROUTE_STATIC
57592a53
AD		 2311 || new_select->sub_type
2312 == BGP_ROUTE_AGGREGATE
2313 || new_select->sub_type
2314 == BGP_ROUTE_REDISTRIBUTE) {
d62a17ae 2315 if (CHECK_FLAG(
2316 rn->flags,
2317 BGP_NODE_REGISTERED_FOR_LABEL))
2318 bgp_unregister_for_label(rn);
70e98a7f 2319 label_ntop(MPLS_LABEL_IMPLICIT_NULL, 1,
d62a17ae 2320 &rn->local_label);
2321 bgp_set_valid_label(&rn->local_label);
2322 } else
2323 bgp_register_for_label(rn, new_select);
2324 }
a4d82a8a
PZ		 2325 } else if (CHECK_FLAG(rn->flags,
2326 BGP_NODE_REGISTERED_FOR_LABEL)) {
d62a17ae 2327 bgp_unregister_for_label(rn);
318cac96
DW		 2328 }
2329 } else if (CHECK_FLAG(rn->flags, BGP_NODE_REGISTERED_FOR_LABEL)) {
2330 bgp_unregister_for_label(rn);
d62a17ae 2331 }
cd1964ff 2332
ddb5b488
PZ		 2333 if (debug) {
2334 prefix2str(&rn->p, pfx_buf, sizeof(pfx_buf));
2335 zlog_debug(
2336 "%s: p=%s afi=%s, safi=%s, old_select=%p, new_select=%p",
2337 __func__, pfx_buf, afi2str(afi), safi2str(safi),
2338 old_select, new_select);
2339 }
2340
d62a17ae 2341 /* If best route remains the same and this is not due to user-initiated
2342 * clear, see exactly what needs to be done.
2343 */
d62a17ae 2344 if (old_select && old_select == new_select
2345 && !CHECK_FLAG(rn->flags, BGP_NODE_USER_CLEAR)
1defdda8 2346 && !CHECK_FLAG(old_select->flags, BGP_PATH_ATTR_CHANGED)
dcc68b5e 2347 && !bgp_addpath_is_addpath_used(&bgp->tx_addpath, afi, safi)) {
d62a17ae 2348 if (bgp_zebra_has_route_changed(rn, old_select)) {
65efcfce 2349#if ENABLE_BGP_VNC
d62a17ae 2350 vnc_import_bgp_add_route(bgp, p, old_select);
2351 vnc_import_bgp_exterior_add_route(bgp, p, old_select);
65efcfce 2352#endif
bb744275 2353 if (bgp_fibupd_safi(safi)
ddb5b488
PZ		 2354 && !bgp_option_check(BGP_OPT_NO_FIB)) {
2355
2356 if (new_select->type == ZEBRA_ROUTE_BGP
2357 && (new_select->sub_type == BGP_ROUTE_NORMAL
2358 || new_select->sub_type
2359 == BGP_ROUTE_IMPORTED))
2360
2361 bgp_zebra_announce(rn, p, old_select,
2362 bgp, afi, safi);
2363 }
d62a17ae 2364 }
1defdda8 2365 UNSET_FLAG(old_select->flags, BGP_PATH_MULTIPATH_CHG);
d62a17ae 2366 bgp_zebra_clear_route_change_flags(rn);
2367
2368 /* If there is a change of interest to peers, reannounce the
2369 * route. */
1defdda8 2370 if (CHECK_FLAG(old_select->flags, BGP_PATH_ATTR_CHANGED)
d62a17ae 2371 || CHECK_FLAG(rn->flags, BGP_NODE_LABEL_CHANGED)) {
2372 group_announce_route(bgp, afi, safi, rn, new_select);
2373
2374 /* unicast routes must also be annouced to
2375 * labeled-unicast update-groups */
2376 if (safi == SAFI_UNICAST)
2377 group_announce_route(bgp, afi,
2378 SAFI_LABELED_UNICAST, rn,
2379 new_select);
2380
1defdda8 2381 UNSET_FLAG(old_select->flags, BGP_PATH_ATTR_CHANGED);
d62a17ae 2382 UNSET_FLAG(rn->flags, BGP_NODE_LABEL_CHANGED);
2383 }
fee0f4c6 2384
d62a17ae 2385 UNSET_FLAG(rn->flags, BGP_NODE_PROCESS_SCHEDULED);
aac24838 2386 return;
d62a17ae 2387 }
8ad7271d 2388
d62a17ae 2389 /* If the user did "clear ip bgp prefix x.x.x.x" this flag will be set
2390 */
2391 UNSET_FLAG(rn->flags, BGP_NODE_USER_CLEAR);
2392
2393 /* bestpath has changed; bump version */
2394 if (old_select || new_select) {
2395 bgp_bump_version(rn);
2396
2397 if (!bgp->t_rmap_def_originate_eval) {
2398 bgp_lock(bgp);
2399 thread_add_timer(
2400 bm->master,
2401 update_group_refresh_default_originate_route_map,
2402 bgp, RMAP_DEFAULT_ORIGINATE_EVAL_TIMER,
2403 &bgp->t_rmap_def_originate_eval);
2404 }
2405 }
3f9c7369 2406
d62a17ae 2407 if (old_select)
18ee8310 2408 bgp_path_info_unset_flag(rn, old_select, BGP_PATH_SELECTED);
d62a17ae 2409 if (new_select) {
ddb5b488
PZ		 2410 if (debug)
2411 zlog_debug("%s: setting SELECTED flag", __func__);
18ee8310
DS		 2412 bgp_path_info_set_flag(rn, new_select, BGP_PATH_SELECTED);
2413 bgp_path_info_unset_flag(rn, new_select, BGP_PATH_ATTR_CHANGED);
1defdda8 2414 UNSET_FLAG(new_select->flags, BGP_PATH_MULTIPATH_CHG);
d62a17ae 2415 }
338b3424 2416
65efcfce 2417#if ENABLE_BGP_VNC
d62a17ae 2418 if ((afi == AFI_IP || afi == AFI_IP6) && (safi == SAFI_UNICAST)) {
2419 if (old_select != new_select) {
2420 if (old_select) {
2421 vnc_import_bgp_exterior_del_route(bgp, p,
2422 old_select);
2423 vnc_import_bgp_del_route(bgp, p, old_select);
2424 }
2425 if (new_select) {
2426 vnc_import_bgp_exterior_add_route(bgp, p,
2427 new_select);
2428 vnc_import_bgp_add_route(bgp, p, new_select);
2429 }
2430 }
2431 }
65efcfce
LB		 2432#endif
2433
d62a17ae 2434 group_announce_route(bgp, afi, safi, rn, new_select);
2435
2436 /* unicast routes must also be annouced to labeled-unicast update-groups
2437 */
2438 if (safi == SAFI_UNICAST)
2439 group_announce_route(bgp, afi, SAFI_LABELED_UNICAST, rn,
2440 new_select);
2441
2442 /* FIB update. */
2443 if (bgp_fibupd_safi(safi) && (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW)
2444 && !bgp_option_check(BGP_OPT_NO_FIB)) {
2445 if (new_select && new_select->type == ZEBRA_ROUTE_BGP
2446 && (new_select->sub_type == BGP_ROUTE_NORMAL
ddb5b488 2447 || new_select->sub_type == BGP_ROUTE_AGGREGATE
2b659f33
MK		 2448 || new_select->sub_type == BGP_ROUTE_IMPORTED)) {
2449
2450 /* if this is an evpn imported type-5 prefix,
2451 * we need to withdraw the route first to clear
2452 * the nh neigh and the RMAC entry.
2453 */
2454 if (old_select &&
2455 is_route_parent_evpn(old_select))
2456 bgp_zebra_withdraw(p, old_select, bgp, safi);
ddb5b488 2457
d62a17ae 2458 bgp_zebra_announce(rn, p, new_select, bgp, afi, safi);
2b659f33 2459 } else {
d62a17ae 2460 /* Withdraw the route from the kernel. */
2461 if (old_select && old_select->type == ZEBRA_ROUTE_BGP
2462 && (old_select->sub_type == BGP_ROUTE_NORMAL
ddb5b488
PZ		 2463 || old_select->sub_type == BGP_ROUTE_AGGREGATE
2464 || old_select->sub_type == BGP_ROUTE_IMPORTED))
2465
568e10ca 2466 bgp_zebra_withdraw(p, old_select, bgp, safi);
d62a17ae 2467 }
718e3744 2468 }
3064bf43 2469
5424b7ba
MK		 2470 /* advertise/withdraw type-5 routes */
2471 if ((afi == AFI_IP || afi == AFI_IP6) && (safi == SAFI_UNICAST)) {
f106e3a7 2472 if (advertise_type5_routes(bgp, afi) &&
2473 new_select &&
2474 is_route_injectable_into_evpn(new_select)) {
7e4ed18e
MK		 2475
2476 /* apply the route-map */
2477 if (bgp->adv_cmd_rmap[afi][safi].map) {
2478 int ret = 0;
2479
3518f352
DS		 2480 ret = route_map_apply(
2481 bgp->adv_cmd_rmap[afi][safi].map,
2482 &rn->p, RMAP_BGP, new_select);
7e4ed18e 2483 if (ret == RMAP_MATCH)
3518f352
DS		 2484 bgp_evpn_advertise_type5_route(
2485 bgp, &rn->p, new_select->attr,
2486 afi, safi);
c27ee4c4 2487 else
2488 bgp_evpn_withdraw_type5_route(
2489 bgp, &rn->p, afi, safi);
7e4ed18e
MK		 2490 } else {
2491 bgp_evpn_advertise_type5_route(bgp,
2492 &rn->p,
2493 new_select->attr,
2494 afi, safi);
2495
2496 }
f106e3a7 2497 } else if (advertise_type5_routes(bgp, afi) &&
2498 old_select &&
2499 is_route_injectable_into_evpn(old_select))
31310b25 2500 bgp_evpn_withdraw_type5_route(bgp, &rn->p, afi, safi);
5424b7ba
MK		 2501 }
2502
d62a17ae 2503 /* Clear any route change flags. */
2504 bgp_zebra_clear_route_change_flags(rn);
3064bf43 2505
18ee8310 2506 /* Reap old select bgp_path_info, if it has been removed */
1defdda8 2507 if (old_select && CHECK_FLAG(old_select->flags, BGP_PATH_REMOVED))
18ee8310 2508 bgp_path_info_reap(rn, old_select);
d62a17ae 2509
2510 UNSET_FLAG(rn->flags, BGP_NODE_PROCESS_SCHEDULED);
aac24838 2511 return;
718e3744 2512}
2513
aac24838 2514static wq_item_status bgp_process_wq(struct work_queue *wq, void *data)
200df115 2515{
aac24838
JB		 2516 struct bgp_process_queue *pqnode = data;
2517 struct bgp *bgp = pqnode->bgp;
d62a17ae 2518 struct bgp_table *table;
ac021f40 2519 struct bgp_node *rn;
aac24838
JB		 2520
2521 /* eoiu marker */
2522 if (CHECK_FLAG(pqnode->flags, BGP_PROCESS_QUEUE_EOIU_MARKER)) {
2523 bgp_process_main_one(bgp, NULL, 0, 0);
60466a63
QY		 2524 /* should always have dedicated wq call */
2525 assert(STAILQ_FIRST(&pqnode->pqueue) == NULL);
aac24838
JB		 2526 return WQ_SUCCESS;
2527 }
2528
ac021f40
LB		 2529 while (!STAILQ_EMPTY(&pqnode->pqueue)) {
2530 rn = STAILQ_FIRST(&pqnode->pqueue);
2531 STAILQ_REMOVE_HEAD(&pqnode->pqueue, pq);
b3e1dd3c 2532 STAILQ_NEXT(rn, pq) = NULL; /* complete unlink */
aac24838 2533 table = bgp_node_table(rn);
ac021f40 2534 /* note, new RNs may be added as part of processing */
aac24838 2535 bgp_process_main_one(bgp, rn, table->afi, table->safi);
cb1faec9 2536
aac24838 2537 bgp_unlock_node(rn);
d62a17ae 2538 bgp_table_unlock(table);
2539 }
aac24838
JB		 2540
2541 return WQ_SUCCESS;
2542}
2543
2544static void bgp_processq_del(struct work_queue *wq, void *data)
2545{
2546 struct bgp_process_queue *pqnode = data;
2547
2548 bgp_unlock(pqnode->bgp);
2549
2550 XFREE(MTYPE_BGP_PROCESS_QUEUE, pqnode);
200df115 2551}
2552
d62a17ae 2553void bgp_process_queue_init(void)
200df115 2554{
0ce1ca80 2555 if (!bm->process_main_queue)
d62a17ae 2556 bm->process_main_queue =
2557 work_queue_new(bm->master, "process_main_queue");
2558
aac24838 2559 bm->process_main_queue->spec.workfunc = &bgp_process_wq;
d62a17ae 2560 bm->process_main_queue->spec.del_item_data = &bgp_processq_del;
2561 bm->process_main_queue->spec.max_retries = 0;
2562 bm->process_main_queue->spec.hold = 50;
2563 /* Use a higher yield value of 50ms for main queue processing */
2564 bm->process_main_queue->spec.yield = 50 * 1000L;
200df115 2565}
2566
cfe8d15a 2567static struct bgp_process_queue *bgp_processq_alloc(struct bgp *bgp)
aac24838
JB		 2568{
2569 struct bgp_process_queue *pqnode;
2570
a4d82a8a
PZ		 2571 pqnode = XCALLOC(MTYPE_BGP_PROCESS_QUEUE,
2572 sizeof(struct bgp_process_queue));
aac24838
JB		 2573
2574 /* unlocked in bgp_processq_del */
2575 pqnode->bgp = bgp_lock(bgp);
2576 STAILQ_INIT(&pqnode->pqueue);
2577
aac24838
JB		 2578 return pqnode;
2579}
2580
d62a17ae 2581void bgp_process(struct bgp *bgp, struct bgp_node *rn, afi_t afi, safi_t safi)
fee0f4c6 2582{
aac24838
JB		 2583#define ARBITRARY_PROCESS_QLEN 10000
2584 struct work_queue *wq = bm->process_main_queue;
d62a17ae 2585 struct bgp_process_queue *pqnode;
cfe8d15a 2586 int pqnode_reuse = 0;
495f0b13 2587
d62a17ae 2588 /* already scheduled for processing? */
2589 if (CHECK_FLAG(rn->flags, BGP_NODE_PROCESS_SCHEDULED))
2590 return;
2e02b9b2 2591
aac24838 2592 if (wq == NULL)
d62a17ae 2593 return;
2594
aac24838 2595 /* Add route nodes to an existing work queue item until reaching the
a4d82a8a
PZ		 2596 limit only if is from the same BGP view and it's not an EOIU marker
2597 */
aac24838
JB		 2598 if (work_queue_item_count(wq)) {
2599 struct work_queue_item *item = work_queue_last_item(wq);
2600 pqnode = item->data;
228da428 2601
a4d82a8a
PZ		 2602 if (CHECK_FLAG(pqnode->flags, BGP_PROCESS_QUEUE_EOIU_MARKER)
2603 || pqnode->bgp != bgp
2604 || pqnode->queued >= ARBITRARY_PROCESS_QLEN)
cfe8d15a
LB		 2605 pqnode = bgp_processq_alloc(bgp);
2606 else
2607 pqnode_reuse = 1;
aac24838 2608 } else
cfe8d15a 2609 pqnode = bgp_processq_alloc(bgp);
aac24838 2610 /* all unlocked in bgp_process_wq */
d62a17ae 2611 bgp_table_lock(bgp_node_table(rn));
aac24838 2612
d62a17ae 2613 SET_FLAG(rn->flags, BGP_NODE_PROCESS_SCHEDULED);
aac24838
JB		 2614 bgp_lock_node(rn);
2615
60466a63
QY		 2616 /* can't be enqueued twice */
2617 assert(STAILQ_NEXT(rn, pq) == NULL);
aac24838
JB		 2618 STAILQ_INSERT_TAIL(&pqnode->pqueue, rn, pq);
2619 pqnode->queued++;
2620
cfe8d15a
LB		 2621 if (!pqnode_reuse)
2622 work_queue_add(wq, pqnode);
2623
d62a17ae 2624 return;
fee0f4c6 2625}
0a486e5f 2626
d62a17ae 2627void bgp_add_eoiu_mark(struct bgp *bgp)
cb1faec9 2628{
d62a17ae 2629 struct bgp_process_queue *pqnode;
cb1faec9 2630
d62a17ae 2631 if (bm->process_main_queue == NULL)
2632 return;
2e02b9b2 2633
cfe8d15a 2634 pqnode = bgp_processq_alloc(bgp);
cb1faec9 2635
aac24838 2636 SET_FLAG(pqnode->flags, BGP_PROCESS_QUEUE_EOIU_MARKER);
cfe8d15a 2637 work_queue_add(bm->process_main_queue, pqnode);
cb1faec9
DS		 2638}
2639
d62a17ae 2640static int bgp_maximum_prefix_restart_timer(struct thread *thread)
0a486e5f 2641{
d62a17ae 2642 struct peer *peer;
0a486e5f 2643
d62a17ae 2644 peer = THREAD_ARG(thread);
2645 peer->t_pmax_restart = NULL;
0a486e5f 2646
d62a17ae 2647 if (bgp_debug_neighbor_events(peer))
2648 zlog_debug(
2649 "%s Maximum-prefix restart timer expired, restore peering",
2650 peer->host);
0a486e5f 2651
a9bafa95
DS		 2652 if ((peer_clear(peer, NULL) < 0) && bgp_debug_neighbor_events(peer))
2653 zlog_debug("%s: %s peer_clear failed",
2654 __PRETTY_FUNCTION__, peer->host);
0a486e5f 2655
d62a17ae 2656 return 0;
0a486e5f 2657}
2658
d62a17ae 2659int bgp_maximum_prefix_overflow(struct peer *peer, afi_t afi, safi_t safi,
2660 int always)
718e3744 2661{
d62a17ae 2662 iana_afi_t pkt_afi;
5c525538 2663 iana_safi_t pkt_safi;
9cabb64b 2664
d62a17ae 2665 if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX))
2666 return 0;
e0701b79 2667
d62a17ae 2668 if (peer->pcount[afi][safi] > peer->pmax[afi][safi]) {
2669 if (CHECK_FLAG(peer->af_sflags[afi][safi],
2670 PEER_STATUS_PREFIX_LIMIT)
2671 && !always)
2672 return 0;
e0701b79 2673
d62a17ae 2674 zlog_info(
2675 "%%MAXPFXEXCEED: No. of %s prefix received from %s %ld exceed, "
2676 "limit %ld",
2677 afi_safi_print(afi, safi), peer->host,
2678 peer->pcount[afi][safi], peer->pmax[afi][safi]);
2679 SET_FLAG(peer->af_sflags[afi][safi], PEER_STATUS_PREFIX_LIMIT);
2680
2681 if (CHECK_FLAG(peer->af_flags[afi][safi],
2682 PEER_FLAG_MAX_PREFIX_WARNING))
2683 return 0;
2684
2685 /* Convert AFI, SAFI to values for packet. */
2686 pkt_afi = afi_int2iana(afi);
2687 pkt_safi = safi_int2iana(safi);
2688 {
d7c0a89a 2689 uint8_t ndata[7];
d62a17ae 2690
2691 ndata[0] = (pkt_afi >> 8);
2692 ndata[1] = pkt_afi;
2693 ndata[2] = pkt_safi;
2694 ndata[3] = (peer->pmax[afi][safi] >> 24);
2695 ndata[4] = (peer->pmax[afi][safi] >> 16);
2696 ndata[5] = (peer->pmax[afi][safi] >> 8);
2697 ndata[6] = (peer->pmax[afi][safi]);
2698
2699 SET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW);
2700 bgp_notify_send_with_data(peer, BGP_NOTIFY_CEASE,
2701 BGP_NOTIFY_CEASE_MAX_PREFIX,
2702 ndata, 7);
2703 }
2704
2705 /* Dynamic peers will just close their connection. */
2706 if (peer_dynamic_neighbor(peer))
2707 return 1;
2708
2709 /* restart timer start */
2710 if (peer->pmax_restart[afi][safi]) {
2711 peer->v_pmax_restart =
2712 peer->pmax_restart[afi][safi] * 60;
2713
2714 if (bgp_debug_neighbor_events(peer))
2715 zlog_debug(
2716 "%s Maximum-prefix restart timer started for %d secs",
2717 peer->host, peer->v_pmax_restart);
2718
2719 BGP_TIMER_ON(peer->t_pmax_restart,
2720 bgp_maximum_prefix_restart_timer,
2721 peer->v_pmax_restart);
2722 }
2723
2724 return 1;
2725 } else
2726 UNSET_FLAG(peer->af_sflags[afi][safi],
2727 PEER_STATUS_PREFIX_LIMIT);
2728
2729 if (peer->pcount[afi][safi]
2730 > (peer->pmax[afi][safi] * peer->pmax_threshold[afi][safi] / 100)) {
2731 if (CHECK_FLAG(peer->af_sflags[afi][safi],
2732 PEER_STATUS_PREFIX_THRESHOLD)
2733 && !always)
2734 return 0;
2735
2736 zlog_info(
2737 "%%MAXPFX: No. of %s prefix received from %s reaches %ld, max %ld",
2738 afi_safi_print(afi, safi), peer->host,
2739 peer->pcount[afi][safi], peer->pmax[afi][safi]);
2740 SET_FLAG(peer->af_sflags[afi][safi],
2741 PEER_STATUS_PREFIX_THRESHOLD);
2742 } else
2743 UNSET_FLAG(peer->af_sflags[afi][safi],
2744 PEER_STATUS_PREFIX_THRESHOLD);
2745 return 0;
718e3744 2746}
2747
b40d939b 2748/* Unconditionally remove the route from the RIB, without taking
2749 * damping into consideration (eg, because the session went down)
2750 */
40381db7 2751void bgp_rib_remove(struct bgp_node *rn, struct bgp_path_info *pi,
4b7e6066 2752 struct peer *peer, afi_t afi, safi_t safi)
718e3744 2753{
40381db7 2754 bgp_aggregate_decrement(peer->bgp, &rn->p, pi, afi, safi);
d62a17ae 2755
40381db7
DS		 2756 if (!CHECK_FLAG(pi->flags, BGP_PATH_HISTORY))
2757 bgp_path_info_delete(rn, pi); /* keep historical info */
d62a17ae 2758
2759 bgp_process(peer->bgp, rn, afi, safi);
2760}
2761
40381db7 2762static void bgp_rib_withdraw(struct bgp_node *rn, struct bgp_path_info *pi,
d62a17ae 2763 struct peer *peer, afi_t afi, safi_t safi,
2764 struct prefix_rd *prd)
2765{
d62a17ae 2766 /* apply dampening, if result is suppressed, we'll be retaining
18ee8310 2767 * the bgp_path_info in the RIB for historical reference.
d62a17ae 2768 */
2769 if (CHECK_FLAG(peer->bgp->af_flags[afi][safi], BGP_CONFIG_DAMPENING)
2770 && peer->sort == BGP_PEER_EBGP)
40381db7 2771 if ((bgp_damp_withdraw(pi, rn, afi, safi, 0))
d62a17ae 2772 == BGP_DAMP_SUPPRESSED) {
40381db7 2773 bgp_aggregate_decrement(peer->bgp, &rn->p, pi, afi,
d62a17ae 2774 safi);
2775 return;
2776 }
2777
65efcfce 2778#if ENABLE_BGP_VNC
d62a17ae 2779 if (safi == SAFI_MPLS_VPN) {
2780 struct bgp_node *prn = NULL;
2781 struct bgp_table *table = NULL;
2782
2783 prn = bgp_node_get(peer->bgp->rib[afi][safi],
2784 (struct prefix *)prd);
67009e22
DS		 2785 if (bgp_node_has_bgp_path_info_data(prn)) {
2786 table = bgp_node_get_bgp_table_info(prn);
d62a17ae 2787
2788 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
40381db7 2789 peer->bgp, prd, table, &rn->p, pi);
d62a17ae 2790 }
2791 bgp_unlock_node(prn);
2792 }
2793 if ((afi == AFI_IP || afi == AFI_IP6) && (safi == SAFI_UNICAST)) {
40381db7 2794 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) {
65efcfce 2795
40381db7 2796 vnc_import_bgp_del_route(peer->bgp, &rn->p, pi);
d62a17ae 2797 vnc_import_bgp_exterior_del_route(peer->bgp, &rn->p,
40381db7 2798 pi);
d62a17ae 2799 }
65efcfce 2800 }
d62a17ae 2801#endif
128ea8ab 2802
d62a17ae 2803 /* If this is an EVPN route, process for un-import. */
2804 if (safi == SAFI_EVPN)
40381db7 2805 bgp_evpn_unimport_route(peer->bgp, afi, safi, &rn->p, pi);
128ea8ab 2806
40381db7 2807 bgp_rib_remove(rn, pi, peer, afi, safi);
718e3744 2808}
2809
4b7e6066
DS		 2810struct bgp_path_info *info_make(int type, int sub_type, unsigned short instance,
2811 struct peer *peer, struct attr *attr,
2812 struct bgp_node *rn)
fb018d25 2813{
4b7e6066 2814 struct bgp_path_info *new;
fb018d25 2815
d62a17ae 2816 /* Make new BGP info. */
4b7e6066 2817 new = XCALLOC(MTYPE_BGP_ROUTE, sizeof(struct bgp_path_info));
d62a17ae 2818 new->type = type;
2819 new->instance = instance;
2820 new->sub_type = sub_type;
2821 new->peer = peer;
2822 new->attr = attr;
2823 new->uptime = bgp_clock();
2824 new->net = rn;
d62a17ae 2825 return new;
fb018d25
DS		 2826}
2827
d62a17ae 2828static void overlay_index_update(struct attr *attr,
2829 struct eth_segment_id *eth_s_id,
2830 union gw_addr *gw_ip)
684a7227 2831{
d62a17ae 2832 if (!attr)
2833 return;
684a7227 2834
d62a17ae 2835 if (eth_s_id == NULL) {
2836 memset(&(attr->evpn_overlay.eth_s_id), 0,
2837 sizeof(struct eth_segment_id));
2838 } else {
2839 memcpy(&(attr->evpn_overlay.eth_s_id), eth_s_id,
2840 sizeof(struct eth_segment_id));
2841 }
2842 if (gw_ip == NULL) {
2843 memset(&(attr->evpn_overlay.gw_ip), 0, sizeof(union gw_addr));
2844 } else {
2845 memcpy(&(attr->evpn_overlay.gw_ip), gw_ip,
2846 sizeof(union gw_addr));
2847 }
684a7227
PG		 2848}
2849
40381db7 2850static bool overlay_index_equal(afi_t afi, struct bgp_path_info *path,
d62a17ae 2851 struct eth_segment_id *eth_s_id,
2852 union gw_addr *gw_ip)
2853{
40381db7
DS		 2854 struct eth_segment_id *path_eth_s_id, *path_eth_s_id_remote;
2855 union gw_addr *path_gw_ip, *path_gw_ip_remote;
11ebf4ed
DS		 2856 union {
2857 struct eth_segment_id esi;
2858 union gw_addr ip;
2859 } temp;
d62a17ae 2860
2861 if (afi != AFI_L2VPN)
2862 return true;
40381db7 2863 if (!path->attr) {
11ebf4ed 2864 memset(&temp, 0, sizeof(temp));
40381db7
DS		 2865 path_eth_s_id = &temp.esi;
2866 path_gw_ip = &temp.ip;
11ebf4ed 2867
d62a17ae 2868 if (eth_s_id == NULL && gw_ip == NULL)
2869 return true;
2870 } else {
40381db7
DS		 2871 path_eth_s_id = &(path->attr->evpn_overlay.eth_s_id);
2872 path_gw_ip = &(path->attr->evpn_overlay.gw_ip);
d62a17ae 2873 }
11ebf4ed
DS		 2874
2875 if (gw_ip == NULL) {
2876 memset(&temp, 0, sizeof(temp));
40381db7 2877 path_gw_ip_remote = &temp.ip;
11ebf4ed 2878 } else
40381db7 2879 path_gw_ip_remote = gw_ip;
11ebf4ed
DS		 2880
2881 if (eth_s_id == NULL) {
2882 memset(&temp, 0, sizeof(temp));
40381db7 2883 path_eth_s_id_remote = &temp.esi;
11ebf4ed 2884 } else
40381db7 2885 path_eth_s_id_remote = eth_s_id;
11ebf4ed 2886
40381db7 2887 if (!memcmp(path_gw_ip, path_gw_ip_remote, sizeof(union gw_addr)))
d62a17ae 2888 return false;
11ebf4ed 2889
40381db7 2890 return !memcmp(path_eth_s_id, path_eth_s_id_remote,
d62a17ae 2891 sizeof(struct eth_segment_id));
684a7227
PG		 2892}
2893
c265ee22 2894/* Check if received nexthop is valid or not. */
d62a17ae 2895static int bgp_update_martian_nexthop(struct bgp *bgp, afi_t afi, safi_t safi,
2896 struct attr *attr)
2897{
2898 int ret = 0;
2899
2900 /* Only validated for unicast and multicast currently. */
2901 /* Also valid for EVPN where the nexthop is an IP address. */
2902 if (safi != SAFI_UNICAST && safi != SAFI_MULTICAST && safi != SAFI_EVPN)
2903 return 0;
2904
2905 /* If NEXT_HOP is present, validate it. */
2906 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) {
2907 if (attr->nexthop.s_addr == 0
2908 || IPV4_CLASS_DE(ntohl(attr->nexthop.s_addr))
2909 || bgp_nexthop_self(bgp, attr->nexthop))
2910 return 1;
2911 }
c265ee22 2912
d62a17ae 2913 /* If MP_NEXTHOP is present, validate it. */
2914 /* Note: For IPv6 nexthops, we only validate the global (1st) nexthop;
2915 * there is code in bgp_attr.c to ignore the link-local (2nd) nexthop if
2916 * it is not an IPv6 link-local address.
2917 */
2918 if (attr->mp_nexthop_len) {
2919 switch (attr->mp_nexthop_len) {
2920 case BGP_ATTR_NHLEN_IPV4:
2921 case BGP_ATTR_NHLEN_VPNV4:
2922 ret = (attr->mp_nexthop_global_in.s_addr == 0
2923 || IPV4_CLASS_DE(ntohl(
2924 attr->mp_nexthop_global_in.s_addr))
2925 || bgp_nexthop_self(bgp,
2926 attr->mp_nexthop_global_in));
2927 break;
2928
2929 case BGP_ATTR_NHLEN_IPV6_GLOBAL:
2930 case BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL:
2931 case BGP_ATTR_NHLEN_VPNV6_GLOBAL:
2932 ret = (IN6_IS_ADDR_UNSPECIFIED(&attr->mp_nexthop_global)
2933 || IN6_IS_ADDR_LOOPBACK(&attr->mp_nexthop_global)
2934 || IN6_IS_ADDR_MULTICAST(
5e76ce50 2935 &attr->mp_nexthop_global));
d62a17ae 2936 break;
2937
2938 default:
2939 ret = 1;
2940 break;
2941 }
2942 }
c265ee22 2943
d62a17ae 2944 return ret;
2945}
2946
d7c0a89a 2947int bgp_update(struct peer *peer, struct prefix *p, uint32_t addpath_id,
d62a17ae 2948 struct attr *attr, afi_t afi, safi_t safi, int type,
a4d82a8a 2949 int sub_type, struct prefix_rd *prd, mpls_label_t *label,
d7c0a89a 2950 uint32_t num_labels, int soft_reconfig,
a4d82a8a 2951 struct bgp_route_evpn *evpn)
d62a17ae 2952{
2953 int ret;
2954 int aspath_loop_count = 0;
2955 struct bgp_node *rn;
2956 struct bgp *bgp;
2957 struct attr new_attr;
2958 struct attr *attr_new;
40381db7 2959 struct bgp_path_info *pi;
4b7e6066
DS		 2960 struct bgp_path_info *new;
2961 struct bgp_path_info_extra *extra;
d62a17ae 2962 const char *reason;
2963 char pfx_buf[BGP_PRD_PATH_STRLEN];
d62a17ae 2964 int connected = 0;
2965 int do_loop_check = 1;
2966 int has_valid_label = 0;
65efcfce 2967#if ENABLE_BGP_VNC
d62a17ae 2968 int vnc_implicit_withdraw = 0;
65efcfce 2969#endif
d62a17ae 2970 int same_attr = 0;
718e3744 2971
d62a17ae 2972 memset(&new_attr, 0, sizeof(struct attr));
2973 new_attr.label_index = BGP_INVALID_LABEL_INDEX;
2974 new_attr.label = MPLS_INVALID_LABEL;
f9a3a260 2975
d62a17ae 2976 bgp = peer->bgp;
2977 rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, prd);
b57ba6d2
MK		 2978 /* TODO: Check to see if we can get rid of "is_valid_label" */
2979 if (afi == AFI_L2VPN && safi == SAFI_EVPN)
2980 has_valid_label = (num_labels > 0) ? 1 : 0;
2981 else
2982 has_valid_label = bgp_is_valid_label(label);
718e3744 2983
d62a17ae 2984 /* When peer's soft reconfiguration enabled. Record input packet in
2985 Adj-RIBs-In. */
2986 if (!soft_reconfig
2987 && CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SOFT_RECONFIG)
2988 && peer != bgp->peer_self)
2989 bgp_adj_in_set(rn, peer, attr, addpath_id);
2990
2991 /* Check previously received route. */
6f94b685 2992 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7
DS		 2993 if (pi->peer == peer && pi->type == type
2994 && pi->sub_type == sub_type
2995 && pi->addpath_rx_id == addpath_id)
d62a17ae 2996 break;
2997
2998 /* AS path local-as loop check. */
2999 if (peer->change_local_as) {
c4368918
DW		 3000 if (peer->allowas_in[afi][safi])
3001 aspath_loop_count = peer->allowas_in[afi][safi];
a4d82a8a
PZ		 3002 else if (!CHECK_FLAG(peer->flags,
3003 PEER_FLAG_LOCAL_AS_NO_PREPEND))
d62a17ae 3004 aspath_loop_count = 1;
3005
3006 if (aspath_loop_check(attr->aspath, peer->change_local_as)
3007 > aspath_loop_count) {
3008 reason = "as-path contains our own AS;";
3009 goto filtered;
3010 }
718e3744 3011 }
718e3744 3012
d62a17ae 3013 /* If the peer is configured for "allowas-in origin" and the last ASN in
3014 * the
3015 * as-path is our ASN then we do not need to call aspath_loop_check
3016 */
3017 if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN_ORIGIN))
3018 if (aspath_get_last_as(attr->aspath) == bgp->as)
3019 do_loop_check = 0;
3020
3021 /* AS path loop check. */
3022 if (do_loop_check) {
3023 if (aspath_loop_check(attr->aspath, bgp->as)
3024 > peer->allowas_in[afi][safi]
3025 || (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)
3026 && aspath_loop_check(attr->aspath, bgp->confed_id)
3027 > peer->allowas_in[afi][safi])) {
3028 reason = "as-path contains our own AS;";
3029 goto filtered;
3030 }
3031 }
aac9ef6c 3032
d62a17ae 3033 /* Route reflector originator ID check. */
3034 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)
3035 && IPV4_ADDR_SAME(&bgp->router_id, &attr->originator_id)) {
3036 reason = "originator is us;";
3037 goto filtered;
3038 }
718e3744 3039
d62a17ae 3040 /* Route reflector cluster ID check. */
3041 if (bgp_cluster_filter(peer, attr)) {
3042 reason = "reflected from the same cluster;";
3043 goto filtered;
3044 }
718e3744 3045
d62a17ae 3046 /* Apply incoming filter. */
3047 if (bgp_input_filter(peer, p, attr, afi, safi) == FILTER_DENY) {
3048 reason = "filter;";
3049 goto filtered;
3050 }
718e3744 3051
d62a17ae 3052 bgp_attr_dup(&new_attr, attr);
3053
3054 /* Apply incoming route-map.
3055 * NB: new_attr may now contain newly allocated values from route-map
3056 * "set"
3057 * commands, so we need bgp_attr_flush in the error paths, until we
3058 * intern
3059 * the attr (which takes over the memory references) */
3060 if (bgp_input_modifier(peer, p, &new_attr, afi, safi, NULL)
3061 == RMAP_DENY) {
3062 reason = "route-map;";
3063 bgp_attr_flush(&new_attr);
3064 goto filtered;
3065 }
718e3744 3066
7f323236
DW		 3067 if (peer->sort == BGP_PEER_EBGP) {
3068
a4d82a8a
PZ		 3069 /* If we receive the graceful-shutdown community from an eBGP
3070 * peer we must lower local-preference */
3071 if (new_attr.community
3072 && community_include(new_attr.community, COMMUNITY_GSHUT)) {
7f323236
DW		 3073 new_attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF);
3074 new_attr.local_pref = BGP_GSHUT_LOCAL_PREF;
3075
a4d82a8a
PZ		 3076 /* If graceful-shutdown is configured then add the GSHUT
3077 * community to all paths received from eBGP peers */
3078 } else if (bgp_flag_check(peer->bgp,
3079 BGP_FLAG_GRACEFUL_SHUTDOWN)) {
7f323236
DW		 3080 bgp_attr_add_gshut_community(&new_attr);
3081 }
3082 }
3083
d62a17ae 3084 /* next hop check. */
a4d82a8a
PZ		 3085 if (!CHECK_FLAG(peer->flags, PEER_FLAG_IS_RFAPI_HD)
3086 && bgp_update_martian_nexthop(bgp, afi, safi, &new_attr)) {
d62a17ae 3087 reason = "martian or self next-hop;";
3088 bgp_attr_flush(&new_attr);
3089 goto filtered;
3090 }
718e3744 3091
5c14a191 3092 if (bgp_mac_entry_exists(p) || bgp_mac_exist(&attr->rmac)) {
4e802e66
DS		 3093 reason = "self mac;";
3094 goto filtered;
3095 }
3096
d62a17ae 3097 attr_new = bgp_attr_intern(&new_attr);
3098
3099 /* If the update is implicit withdraw. */
40381db7
DS		 3100 if (pi) {
3101 pi->uptime = bgp_clock();
3102 same_attr = attrhash_cmp(pi->attr, attr_new);
d62a17ae 3103
3104 /* Same attribute comes in. */
40381db7
DS		 3105 if (!CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)
3106 && attrhash_cmp(pi->attr, attr_new)
d62a17ae 3107 && (!has_valid_label
40381db7 3108 || memcmp(&(bgp_path_info_extra_get(pi))->label, label,
b57ba6d2 3109 num_labels * sizeof(mpls_label_t))
d62a17ae 3110 == 0)
3111 && (overlay_index_equal(
40381db7 3112 afi, pi, evpn == NULL ? NULL : &evpn->eth_s_id,
d62a17ae 3113 evpn == NULL ? NULL : &evpn->gw_ip))) {
3114 if (CHECK_FLAG(bgp->af_flags[afi][safi],
3115 BGP_CONFIG_DAMPENING)
3116 && peer->sort == BGP_PEER_EBGP
40381db7 3117 && CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)) {
d62a17ae 3118 if (bgp_debug_update(peer, p, NULL, 1)) {
3119 bgp_debug_rdpfxpath2str(
a4d82a8a
PZ		 3120 afi, safi, prd, p, label,
3121 num_labels, addpath_id ? 1 : 0,
3122 addpath_id, pfx_buf,
3123 sizeof(pfx_buf));
d62a17ae 3124 zlog_debug("%s rcvd %s", peer->host,
3125 pfx_buf);
3126 }
3127
40381db7 3128 if (bgp_damp_update(pi, rn, afi, safi)
d62a17ae 3129 != BGP_DAMP_SUPPRESSED) {
40381db7 3130 bgp_aggregate_increment(bgp, p, pi, afi,
d62a17ae 3131 safi);
3132 bgp_process(bgp, rn, afi, safi);
3133 }
3134 } else /* Duplicate - odd */
3135 {
3136 if (bgp_debug_update(peer, p, NULL, 1)) {
3137 if (!peer->rcvd_attr_printed) {
3138 zlog_debug(
3139 "%s rcvd UPDATE w/ attr: %s",
3140 peer->host,
3141 peer->rcvd_attr_str);
3142 peer->rcvd_attr_printed = 1;
3143 }
3144
3145 bgp_debug_rdpfxpath2str(
a4d82a8a
PZ		 3146 afi, safi, prd, p, label,
3147 num_labels, addpath_id ? 1 : 0,
3148 addpath_id, pfx_buf,
3149 sizeof(pfx_buf));
d62a17ae 3150 zlog_debug(
3151 "%s rcvd %s...duplicate ignored",
3152 peer->host, pfx_buf);
3153 }
3154
3155 /* graceful restart STALE flag unset. */
40381db7 3156 if (CHECK_FLAG(pi->flags, BGP_PATH_STALE)) {
18ee8310 3157 bgp_path_info_unset_flag(
40381db7 3158 rn, pi, BGP_PATH_STALE);
d62a17ae 3159 bgp_process(bgp, rn, afi, safi);
3160 }
3161 }
3162
3163 bgp_unlock_node(rn);
3164 bgp_attr_unintern(&attr_new);
3165
3166 return 0;
3167 }
718e3744 3168
d62a17ae 3169 /* Withdraw/Announce before we fully processed the withdraw */
40381db7 3170 if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) {
d62a17ae 3171 if (bgp_debug_update(peer, p, NULL, 1)) {
3172 bgp_debug_rdpfxpath2str(
a4d82a8a 3173 afi, safi, prd, p, label, num_labels,
d62a17ae 3174 addpath_id ? 1 : 0, addpath_id, pfx_buf,
3175 sizeof(pfx_buf));
3176 zlog_debug(
3177 "%s rcvd %s, flapped quicker than processing",
3178 peer->host, pfx_buf);
3179 }
3180
40381db7 3181 bgp_path_info_restore(rn, pi);
d62a17ae 3182 }
718e3744 3183
d62a17ae 3184 /* Received Logging. */
3185 if (bgp_debug_update(peer, p, NULL, 1)) {
a4d82a8a
PZ		 3186 bgp_debug_rdpfxpath2str(afi, safi, prd, p, label,
3187 num_labels, addpath_id ? 1 : 0,
3188 addpath_id, pfx_buf,
3189 sizeof(pfx_buf));
d62a17ae 3190 zlog_debug("%s rcvd %s", peer->host, pfx_buf);
3191 }
718e3744 3192
d62a17ae 3193 /* graceful restart STALE flag unset. */
40381db7
DS		 3194 if (CHECK_FLAG(pi->flags, BGP_PATH_STALE))
3195 bgp_path_info_unset_flag(rn, pi, BGP_PATH_STALE);
d62a17ae 3196
3197 /* The attribute is changed. */
40381db7 3198 bgp_path_info_set_flag(rn, pi, BGP_PATH_ATTR_CHANGED);
d62a17ae 3199
3200 /* implicit withdraw, decrement aggregate and pcount here.
3201 * only if update is accepted, they'll increment below.
3202 */
40381db7 3203 bgp_aggregate_decrement(bgp, p, pi, afi, safi);
d62a17ae 3204
3205 /* Update bgp route dampening information. */
3206 if (CHECK_FLAG(bgp->af_flags[afi][safi], BGP_CONFIG_DAMPENING)
3207 && peer->sort == BGP_PEER_EBGP) {
3208 /* This is implicit withdraw so we should update
3209 dampening
3210 information. */
40381db7
DS		 3211 if (!CHECK_FLAG(pi->flags, BGP_PATH_HISTORY))
3212 bgp_damp_withdraw(pi, rn, afi, safi, 1);
d62a17ae 3213 }
65efcfce 3214#if ENABLE_BGP_VNC
d62a17ae 3215 if (safi == SAFI_MPLS_VPN) {
3216 struct bgp_node *prn = NULL;
3217 struct bgp_table *table = NULL;
3218
3219 prn = bgp_node_get(bgp->rib[afi][safi],
3220 (struct prefix *)prd);
67009e22
DS		 3221 if (bgp_node_has_bgp_path_info_data(prn)) {
3222 table = bgp_node_get_bgp_table_info(prn);
d62a17ae 3223
3224 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
40381db7 3225 bgp, prd, table, p, pi);
d62a17ae 3226 }
3227 bgp_unlock_node(prn);
3228 }
3229 if ((afi == AFI_IP || afi == AFI_IP6)
3230 && (safi == SAFI_UNICAST)) {
40381db7 3231 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) {
d62a17ae 3232 /*
3233 * Implicit withdraw case.
3234 */
3235 ++vnc_implicit_withdraw;
40381db7
DS		 3236 vnc_import_bgp_del_route(bgp, p, pi);
3237 vnc_import_bgp_exterior_del_route(bgp, p, pi);
d62a17ae 3238 }
3239 }
65efcfce 3240#endif
128ea8ab 3241
d62a17ae 3242 /* Special handling for EVPN update of an existing route. If the
3243 * extended community attribute has changed, we need to
3244 * un-import
3245 * the route using its existing extended community. It will be
3246 * subsequently processed for import with the new extended
3247 * community.
3248 */
3249 if (safi == SAFI_EVPN && !same_attr) {
40381db7 3250 if ((pi->attr->flag
d62a17ae 3251 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES))
3252 && (attr_new->flag
3253 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES))) {
3254 int cmp;
3255
40381db7 3256 cmp = ecommunity_cmp(pi->attr->ecommunity,
d62a17ae 3257 attr_new->ecommunity);
3258 if (!cmp) {
3259 if (bgp_debug_update(peer, p, NULL, 1))
3260 zlog_debug(
3261 "Change in EXT-COMM, existing %s new %s",
3262 ecommunity_str(
40381db7 3263 pi->attr->ecommunity),
d62a17ae 3264 ecommunity_str(
3265 attr_new->ecommunity));
3266 bgp_evpn_unimport_route(bgp, afi, safi,
40381db7 3267 p, pi);
d62a17ae 3268 }
3269 }
3270 }
718e3744 3271
d62a17ae 3272 /* Update to new attribute. */
40381db7
DS		 3273 bgp_attr_unintern(&pi->attr);
3274 pi->attr = attr_new;
d62a17ae 3275
3276 /* Update MPLS label */
3277 if (has_valid_label) {
40381db7 3278 extra = bgp_path_info_extra_get(pi);
8ba71050
NS		 3279 if (extra->label != label) {
3280 memcpy(&extra->label, label,
dbd587da 3281 num_labels * sizeof(mpls_label_t));
8ba71050
NS		 3282 extra->num_labels = num_labels;
3283 }
b57ba6d2
MK		 3284 if (!(afi == AFI_L2VPN && safi == SAFI_EVPN))
3285 bgp_set_valid_label(&extra->label[0]);
fc9a856f 3286 }
718e3744 3287
65efcfce 3288#if ENABLE_BGP_VNC
d62a17ae 3289 if ((afi == AFI_IP || afi == AFI_IP6)
3290 && (safi == SAFI_UNICAST)) {
3291 if (vnc_implicit_withdraw) {
3292 /*
3293 * Add back the route with its new attributes
3294 * (e.g., nexthop).
3295 * The route is still selected, until the route
3296 * selection
3297 * queued by bgp_process actually runs. We have
3298 * to make this
3299 * update to the VNC side immediately to avoid
3300 * racing against
3301 * configuration changes (e.g., route-map
3302 * changes) which
3303 * trigger re-importation of the entire RIB.
3304 */
40381db7
DS		 3305 vnc_import_bgp_add_route(bgp, p, pi);
3306 vnc_import_bgp_exterior_add_route(bgp, p, pi);
d62a17ae 3307 }
3308 }
65efcfce 3309#endif
d62a17ae 3310 /* Update Overlay Index */
3311 if (afi == AFI_L2VPN) {
3312 overlay_index_update(
40381db7 3313 pi->attr, evpn == NULL ? NULL : &evpn->eth_s_id,
d62a17ae 3314 evpn == NULL ? NULL : &evpn->gw_ip);
3315 }
65efcfce 3316
d62a17ae 3317 /* Update bgp route dampening information. */
3318 if (CHECK_FLAG(bgp->af_flags[afi][safi], BGP_CONFIG_DAMPENING)
3319 && peer->sort == BGP_PEER_EBGP) {
3320 /* Now we do normal update dampening. */
40381db7 3321 ret = bgp_damp_update(pi, rn, afi, safi);
d62a17ae 3322 if (ret == BGP_DAMP_SUPPRESSED) {
3323 bgp_unlock_node(rn);
3324 return 0;
3325 }
3326 }
128ea8ab 3327
d62a17ae 3328 /* Nexthop reachability check - for unicast and
3329 * labeled-unicast.. */
3330 if ((afi == AFI_IP || afi == AFI_IP6)
3331 && (safi == SAFI_UNICAST || safi == SAFI_LABELED_UNICAST)) {
3332 if (peer->sort == BGP_PEER_EBGP && peer->ttl == 1
3333 && !CHECK_FLAG(peer->flags,
3334 PEER_FLAG_DISABLE_CONNECTED_CHECK)
3335 && !bgp_flag_check(
3336 bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
3337 connected = 1;
3338 else
3339 connected = 0;
3340
960035b2
PZ		 3341 struct bgp *bgp_nexthop = bgp;
3342
40381db7
DS		 3343 if (pi->extra && pi->extra->bgp_orig)
3344 bgp_nexthop = pi->extra->bgp_orig;
960035b2 3345
40381db7
DS		 3346 if (bgp_find_or_add_nexthop(bgp, bgp_nexthop, afi, pi,
3347 NULL, connected)
a4d82a8a 3348 || CHECK_FLAG(peer->flags, PEER_FLAG_IS_RFAPI_HD))
40381db7 3349 bgp_path_info_set_flag(rn, pi, BGP_PATH_VALID);
d62a17ae 3350 else {
3351 if (BGP_DEBUG(nht, NHT)) {
3352 char buf1[INET6_ADDRSTRLEN];
3353 inet_ntop(AF_INET,
3354 (const void *)&attr_new
3355 ->nexthop,
3356 buf1, INET6_ADDRSTRLEN);
3357 zlog_debug("%s(%s): NH unresolved",
3358 __FUNCTION__, buf1);
3359 }
40381db7 3360 bgp_path_info_unset_flag(rn, pi,
18ee8310 3361 BGP_PATH_VALID);
d62a17ae 3362 }
3363 } else
40381db7 3364 bgp_path_info_set_flag(rn, pi, BGP_PATH_VALID);
d62a17ae 3365
3366#if ENABLE_BGP_VNC
3367 if (safi == SAFI_MPLS_VPN) {
3368 struct bgp_node *prn = NULL;
3369 struct bgp_table *table = NULL;
3370
3371 prn = bgp_node_get(bgp->rib[afi][safi],
3372 (struct prefix *)prd);
67009e22
DS		 3373 if (bgp_node_has_bgp_path_info_data(prn)) {
3374 table = bgp_node_get_bgp_table_info(prn);
d62a17ae 3375
3376 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
40381db7 3377 bgp, prd, table, p, pi);
d62a17ae 3378 }
3379 bgp_unlock_node(prn);
3380 }
3381#endif
718e3744 3382
d62a17ae 3383 /* If this is an EVPN route and some attribute has changed,
3384 * process
3385 * route for import. If the extended community has changed, we
3386 * would
3387 * have done the un-import earlier and the import would result
3388 * in the
3389 * route getting injected into appropriate L2 VNIs. If it is
3390 * just
3391 * some other attribute change, the import will result in
3392 * updating
3393 * the attributes for the route in the VNI(s).
3394 */
3395 if (safi == SAFI_EVPN && !same_attr)
40381db7 3396 bgp_evpn_import_route(bgp, afi, safi, p, pi);
d62a17ae 3397
3398 /* Process change. */
40381db7 3399 bgp_aggregate_increment(bgp, p, pi, afi, safi);
d62a17ae 3400
3401 bgp_process(bgp, rn, afi, safi);
3402 bgp_unlock_node(rn);
558d1fec 3403
ddb5b488
PZ		 3404 if (SAFI_UNICAST == safi
3405 && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF
3406 || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
3407
40381db7 3408 vpn_leak_from_vrf_update(bgp_get_default(), bgp, pi);
ddb5b488
PZ		 3409 }
3410 if ((SAFI_MPLS_VPN == safi)
3411 && (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
3412
40381db7 3413 vpn_leak_to_vrf_update(bgp, pi);
ddb5b488
PZ		 3414 }
3415
28070ee3 3416#if ENABLE_BGP_VNC
d62a17ae 3417 if (SAFI_MPLS_VPN == safi) {
3418 mpls_label_t label_decoded = decode_label(label);
28070ee3 3419
d62a17ae 3420 rfapiProcessUpdate(peer, NULL, p, prd, attr, afi, safi,
3421 type, sub_type, &label_decoded);
3422 }
3423 if (SAFI_ENCAP == safi) {
3424 rfapiProcessUpdate(peer, NULL, p, prd, attr, afi, safi,
3425 type, sub_type, NULL);
3426 }
28070ee3
PZ		 3427#endif
3428
d62a17ae 3429 return 0;
3430 } // End of implicit withdraw
718e3744 3431
d62a17ae 3432 /* Received Logging. */
3433 if (bgp_debug_update(peer, p, NULL, 1)) {
3434 if (!peer->rcvd_attr_printed) {
3435 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer->host,
3436 peer->rcvd_attr_str);
3437 peer->rcvd_attr_printed = 1;
3438 }
718e3744 3439
a4d82a8a 3440 bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, num_labels,
d62a17ae 3441 addpath_id ? 1 : 0, addpath_id, pfx_buf,
3442 sizeof(pfx_buf));
3443 zlog_debug("%s rcvd %s", peer->host, pfx_buf);
3444 }
718e3744 3445
d62a17ae 3446 /* Make new BGP info. */
3447 new = info_make(type, sub_type, 0, peer, attr_new, rn);
718e3744 3448
d62a17ae 3449 /* Update MPLS label */
3450 if (has_valid_label) {
18ee8310 3451 extra = bgp_path_info_extra_get(new);
8ba71050 3452 if (extra->label != label) {
dbd587da
QY		 3453 memcpy(&extra->label, label,
3454 num_labels * sizeof(mpls_label_t));
8ba71050
NS		 3455 extra->num_labels = num_labels;
3456 }
b57ba6d2
MK		 3457 if (!(afi == AFI_L2VPN && safi == SAFI_EVPN))
3458 bgp_set_valid_label(&extra->label[0]);
fc9a856f 3459 }
718e3744 3460
d62a17ae 3461 /* Update Overlay Index */
3462 if (afi == AFI_L2VPN) {
3463 overlay_index_update(new->attr,
3464 evpn == NULL ? NULL : &evpn->eth_s_id,
3465 evpn == NULL ? NULL : &evpn->gw_ip);
3466 }
3467 /* Nexthop reachability check. */
3468 if ((afi == AFI_IP || afi == AFI_IP6)
3469 && (safi == SAFI_UNICAST || safi == SAFI_LABELED_UNICAST)) {
3470 if (peer->sort == BGP_PEER_EBGP && peer->ttl == 1
3471 && !CHECK_FLAG(peer->flags,
3472 PEER_FLAG_DISABLE_CONNECTED_CHECK)
3473 && !bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
3474 connected = 1;
3475 else
3476 connected = 0;
3477
960035b2 3478 if (bgp_find_or_add_nexthop(bgp, bgp, afi, new, NULL, connected)
a4d82a8a 3479 || CHECK_FLAG(peer->flags, PEER_FLAG_IS_RFAPI_HD))
18ee8310 3480 bgp_path_info_set_flag(rn, new, BGP_PATH_VALID);
d62a17ae 3481 else {
3482 if (BGP_DEBUG(nht, NHT)) {
3483 char buf1[INET6_ADDRSTRLEN];
3484 inet_ntop(AF_INET,
3485 (const void *)&attr_new->nexthop,
3486 buf1, INET6_ADDRSTRLEN);
3487 zlog_debug("%s(%s): NH unresolved",
3488 __FUNCTION__, buf1);
3489 }
18ee8310 3490 bgp_path_info_unset_flag(rn, new, BGP_PATH_VALID);
d62a17ae 3491 }
3492 } else
18ee8310 3493 bgp_path_info_set_flag(rn, new, BGP_PATH_VALID);
a82478b9 3494
d62a17ae 3495 /* Addpath ID */
3496 new->addpath_rx_id = addpath_id;
3497
3498 /* Increment prefix */
3499 bgp_aggregate_increment(bgp, p, new, afi, safi);
3500
3501 /* Register new BGP information. */
18ee8310 3502 bgp_path_info_add(rn, new);
d62a17ae 3503
3504 /* route_node_get lock */
3505 bgp_unlock_node(rn);
558d1fec 3506
65efcfce 3507#if ENABLE_BGP_VNC
d62a17ae 3508 if (safi == SAFI_MPLS_VPN) {
3509 struct bgp_node *prn = NULL;
3510 struct bgp_table *table = NULL;
3511
3512 prn = bgp_node_get(bgp->rib[afi][safi], (struct prefix *)prd);
67009e22
DS		 3513 if (bgp_node_has_bgp_path_info_data(prn)) {
3514 table = bgp_node_get_bgp_table_info(prn);
d62a17ae 3515
3516 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3517 bgp, prd, table, p, new);
3518 }
3519 bgp_unlock_node(prn);
3520 }
65efcfce
LB		 3521#endif
3522
d62a17ae 3523 /* If maximum prefix count is configured and current prefix
3524 count exeed it. */
3525 if (bgp_maximum_prefix_overflow(peer, afi, safi, 0))
3526 return -1;
718e3744 3527
d62a17ae 3528 /* If this is an EVPN route, process for import. */
3529 if (safi == SAFI_EVPN)
3530 bgp_evpn_import_route(bgp, afi, safi, p, new);
128ea8ab 3531
d62a17ae 3532 /* Process change. */
3533 bgp_process(bgp, rn, afi, safi);
718e3744 3534
ddb5b488
PZ		 3535 if (SAFI_UNICAST == safi
3536 && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF
3537 || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
3538 vpn_leak_from_vrf_update(bgp_get_default(), bgp, new);
3539 }
3540 if ((SAFI_MPLS_VPN == safi)
3541 && (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
3542
3543 vpn_leak_to_vrf_update(bgp, new);
3544 }
28070ee3 3545#if ENABLE_BGP_VNC
d62a17ae 3546 if (SAFI_MPLS_VPN == safi) {
3547 mpls_label_t label_decoded = decode_label(label);
28070ee3 3548
d62a17ae 3549 rfapiProcessUpdate(peer, NULL, p, prd, attr, afi, safi, type,
3550 sub_type, &label_decoded);
3551 }
3552 if (SAFI_ENCAP == safi) {
3553 rfapiProcessUpdate(peer, NULL, p, prd, attr, afi, safi, type,
3554 sub_type, NULL);
3555 }
28070ee3
PZ		 3556#endif
3557
d62a17ae 3558 return 0;
718e3744 3559
d62a17ae 3560/* This BGP update is filtered. Log the reason then update BGP
3561 entry. */
3562filtered:
3563 if (bgp_debug_update(peer, p, NULL, 1)) {
3564 if (!peer->rcvd_attr_printed) {
3565 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer->host,
3566 peer->rcvd_attr_str);
3567 peer->rcvd_attr_printed = 1;
3568 }
718e3744 3569
a4d82a8a 3570 bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, num_labels,
d62a17ae 3571 addpath_id ? 1 : 0, addpath_id, pfx_buf,
3572 sizeof(pfx_buf));
3573 zlog_debug("%s rcvd UPDATE about %s -- DENIED due to: %s",
3574 peer->host, pfx_buf, reason);
3575 }
128ea8ab 3576
40381db7 3577 if (pi) {
d62a17ae 3578 /* If this is an EVPN route, un-import it as it is now filtered.
3579 */
3580 if (safi == SAFI_EVPN)
40381db7 3581 bgp_evpn_unimport_route(bgp, afi, safi, p, pi);
718e3744 3582
ddb5b488
PZ		 3583 if (SAFI_UNICAST == safi
3584 && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF
3585 || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
3586
40381db7 3587 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp, pi);
ddb5b488
PZ		 3588 }
3589 if ((SAFI_MPLS_VPN == safi)
3590 && (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
3591
40381db7 3592 vpn_leak_to_vrf_withdraw(bgp, pi);
ddb5b488
PZ		 3593 }
3594
40381db7 3595 bgp_rib_remove(rn, pi, peer, afi, safi);
d62a17ae 3596 }
3597
3598 bgp_unlock_node(rn);
558d1fec 3599
97736e32 3600#if ENABLE_BGP_VNC
d62a17ae 3601 /*
3602 * Filtered update is treated as an implicit withdrawal (see
3603 * bgp_rib_remove()
3604 * a few lines above)
3605 */
3606 if ((SAFI_MPLS_VPN == safi) || (SAFI_ENCAP == safi)) {
3607 rfapiProcessWithdraw(peer, NULL, p, prd, NULL, afi, safi, type,
3608 0);
3609 }
97736e32
PZ		 3610#endif
3611
d62a17ae 3612 return 0;
718e3744 3613}
3614
d7c0a89a 3615int bgp_withdraw(struct peer *peer, struct prefix *p, uint32_t addpath_id,
d62a17ae 3616 struct attr *attr, afi_t afi, safi_t safi, int type,
a4d82a8a 3617 int sub_type, struct prefix_rd *prd, mpls_label_t *label,
d7c0a89a 3618 uint32_t num_labels, struct bgp_route_evpn *evpn)
718e3744 3619{
d62a17ae 3620 struct bgp *bgp;
3621 char pfx_buf[BGP_PRD_PATH_STRLEN];
3622 struct bgp_node *rn;
40381db7 3623 struct bgp_path_info *pi;
718e3744 3624
28070ee3 3625#if ENABLE_BGP_VNC
d62a17ae 3626 if ((SAFI_MPLS_VPN == safi) || (SAFI_ENCAP == safi)) {
3627 rfapiProcessWithdraw(peer, NULL, p, prd, NULL, afi, safi, type,
3628 0);
3629 }
28070ee3
PZ		 3630#endif
3631
d62a17ae 3632 bgp = peer->bgp;
3633
3634 /* Lookup node. */
3635 rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, prd);
3636
3637 /* If peer is soft reconfiguration enabled. Record input packet for
3638 * further calculation.
3639 *
3640 * Cisco IOS 12.4(24)T4 on session establishment sends withdraws for all
3641 * routes that are filtered. This tanks out Quagga RS pretty badly due
3642 * to
3643 * the iteration over all RS clients.
3644 * Since we need to remove the entry from adj_in anyway, do that first
3645 * and
3646 * if there was no entry, we don't need to do anything more.
3647 */
3648 if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SOFT_RECONFIG)
3649 && peer != bgp->peer_self)
3650 if (!bgp_adj_in_unset(rn, peer, addpath_id)) {
3651 if (bgp_debug_update(peer, p, NULL, 1)) {
3652 bgp_debug_rdpfxpath2str(
a4d82a8a 3653 afi, safi, prd, p, label, num_labels,
d62a17ae 3654 addpath_id ? 1 : 0, addpath_id, pfx_buf,
3655 sizeof(pfx_buf));
3656 zlog_debug(
3657 "%s withdrawing route %s not in adj-in",
3658 peer->host, pfx_buf);
3659 }
3660 bgp_unlock_node(rn);
3661 return 0;
3662 }
cd808e74 3663
d62a17ae 3664 /* Lookup withdrawn route. */
6f94b685 3665 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7
DS		 3666 if (pi->peer == peer && pi->type == type
3667 && pi->sub_type == sub_type
3668 && pi->addpath_rx_id == addpath_id)
d62a17ae 3669 break;
3670
3671 /* Logging. */
3672 if (bgp_debug_update(peer, p, NULL, 1)) {
a4d82a8a 3673 bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, num_labels,
d62a17ae 3674 addpath_id ? 1 : 0, addpath_id, pfx_buf,
3675 sizeof(pfx_buf));
3676 zlog_debug("%s rcvd UPDATE about %s -- withdrawn", peer->host,
3677 pfx_buf);
3678 }
718e3744 3679
d62a17ae 3680 /* Withdraw specified route from routing table. */
40381db7
DS		 3681 if (pi && !CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)) {
3682 bgp_rib_withdraw(rn, pi, peer, afi, safi, prd);
ddb5b488
PZ		 3683 if (SAFI_UNICAST == safi
3684 && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF
3685 || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
40381db7 3686 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp, pi);
ddb5b488
PZ		 3687 }
3688 if ((SAFI_MPLS_VPN == safi)
3689 && (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
3690
40381db7 3691 vpn_leak_to_vrf_withdraw(bgp, pi);
ddb5b488
PZ		 3692 }
3693 } else if (bgp_debug_update(peer, p, NULL, 1)) {
a4d82a8a 3694 bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, num_labels,
d62a17ae 3695 addpath_id ? 1 : 0, addpath_id, pfx_buf,
3696 sizeof(pfx_buf));
3697 zlog_debug("%s Can't find the route %s", peer->host, pfx_buf);
3698 }
718e3744 3699
d62a17ae 3700 /* Unlock bgp_node_get() lock. */
3701 bgp_unlock_node(rn);
3702
3703 return 0;
718e3744 3704}
6b0655a2 3705
d62a17ae 3706void bgp_default_originate(struct peer *peer, afi_t afi, safi_t safi,
3707 int withdraw)
718e3744 3708{
d62a17ae 3709 struct update_subgroup *subgrp;
3710 subgrp = peer_subgroup(peer, afi, safi);
3711 subgroup_default_originate(subgrp, withdraw);
3f9c7369 3712}
6182d65b 3713
718e3744 3714
3f9c7369
DS		 3715/*
3716 * bgp_stop_announce_route_timer
3717 */
d62a17ae 3718void bgp_stop_announce_route_timer(struct peer_af *paf)
3f9c7369 3719{
d62a17ae 3720 if (!paf->t_announce_route)
3721 return;
3722
3723 THREAD_TIMER_OFF(paf->t_announce_route);
718e3744 3724}
6b0655a2 3725
3f9c7369
DS		 3726/*
3727 * bgp_announce_route_timer_expired
3728 *
3729 * Callback that is invoked when the route announcement timer for a
3730 * peer_af expires.
3731 */
d62a17ae 3732static int bgp_announce_route_timer_expired(struct thread *t)
718e3744 3733{
d62a17ae 3734 struct peer_af *paf;
3735 struct peer *peer;
558d1fec 3736
d62a17ae 3737 paf = THREAD_ARG(t);
3738 peer = paf->peer;
718e3744 3739
d62a17ae 3740 if (peer->status != Established)
3741 return 0;
3f9c7369 3742
d62a17ae 3743 if (!peer->afc_nego[paf->afi][paf->safi])
3744 return 0;
3f9c7369 3745
d62a17ae 3746 peer_af_announce_route(paf, 1);
3747 return 0;
718e3744 3748}
3749
3f9c7369
DS		 3750/*
3751 * bgp_announce_route
3752 *
3753 * *Triggers* announcement of routes of a given AFI/SAFI to a peer.
3754 */
d62a17ae 3755void bgp_announce_route(struct peer *peer, afi_t afi, safi_t safi)
3756{
3757 struct peer_af *paf;
3758 struct update_subgroup *subgrp;
3759
3760 paf = peer_af_find(peer, afi, safi);
3761 if (!paf)
3762 return;
3763 subgrp = PAF_SUBGRP(paf);
3764
3765 /*
3766 * Ignore if subgroup doesn't exist (implies AF is not negotiated)
3767 * or a refresh has already been triggered.
3768 */
3769 if (!subgrp || paf->t_announce_route)
3770 return;
3771
3772 /*
3773 * Start a timer to stagger/delay the announce. This serves
3774 * two purposes - announcement can potentially be combined for
3775 * multiple peers and the announcement doesn't happen in the
3776 * vty context.
3777 */
3778 thread_add_timer_msec(bm->master, bgp_announce_route_timer_expired, paf,
3779 (subgrp->peer_count == 1)
3780 ? BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS
3781 : BGP_ANNOUNCE_ROUTE_DELAY_MS,
3782 &paf->t_announce_route);
3f9c7369
DS		 3783}
3784
3785/*
3786 * Announce routes from all AF tables to a peer.
3787 *
3788 * This should ONLY be called when there is a need to refresh the
3789 * routes to the peer based on a policy change for this peer alone
3790 * or a route refresh request received from the peer.
3791 * The operation will result in splitting the peer from its existing
3792 * subgroups and putting it in new subgroups.
3793 */
d62a17ae 3794void bgp_announce_route_all(struct peer *peer)
718e3744 3795{
d62a17ae 3796 afi_t afi;
3797 safi_t safi;
3798
05c7a1cc
QY		 3799 FOREACH_AFI_SAFI (afi, safi)
3800 bgp_announce_route(peer, afi, safi);
718e3744 3801}
6b0655a2 3802
d62a17ae 3803static void bgp_soft_reconfig_table(struct peer *peer, afi_t afi, safi_t safi,
3804 struct bgp_table *table,
3805 struct prefix_rd *prd)
718e3744 3806{
d62a17ae 3807 int ret;
3808 struct bgp_node *rn;
3809 struct bgp_adj_in *ain;
718e3744 3810
d62a17ae 3811 if (!table)
3812 table = peer->bgp->rib[afi][safi];
718e3744 3813
d62a17ae 3814 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn))
3815 for (ain = rn->adj_in; ain; ain = ain->next) {
ea47320b
DL		 3816 if (ain->peer != peer)
3817 continue;
8692c506 3818
6f94b685
DS		 3819 struct bgp_path_info *pi =
3820 bgp_node_get_bgp_path_info(rn);
d7c0a89a 3821 uint32_t num_labels = 0;
b57ba6d2 3822 mpls_label_t *label_pnt = NULL;
8cb687c2 3823 struct bgp_route_evpn evpn;
b57ba6d2 3824
40381db7
DS		 3825 if (pi && pi->extra)
3826 num_labels = pi->extra->num_labels;
b57ba6d2 3827 if (num_labels)
40381db7 3828 label_pnt = &pi->extra->label[0];
8cb687c2
DS		 3829 if (pi)
3830 memcpy(&evpn, &pi->attr->evpn_overlay,
3831 sizeof(evpn));
3832 else
3833 memset(&evpn, 0, sizeof(evpn));
8692c506 3834
ea47320b
DL		 3835 ret = bgp_update(peer, &rn->p, ain->addpath_rx_id,
3836 ain->attr, afi, safi, ZEBRA_ROUTE_BGP,
a4d82a8a 3837 BGP_ROUTE_NORMAL, prd, label_pnt,
8cb687c2 3838 num_labels, 1, &evpn);
ea47320b
DL		 3839
3840 if (ret < 0) {
3841 bgp_unlock_node(rn);
3842 return;
d62a17ae 3843 }
3844 }
718e3744 3845}
3846
d62a17ae 3847void bgp_soft_reconfig_in(struct peer *peer, afi_t afi, safi_t safi)
718e3744 3848{
d62a17ae 3849 struct bgp_node *rn;
3850 struct bgp_table *table;
718e3744 3851
d62a17ae 3852 if (peer->status != Established)
3853 return;
718e3744 3854
d62a17ae 3855 if ((safi != SAFI_MPLS_VPN) && (safi != SAFI_ENCAP)
3856 && (safi != SAFI_EVPN))
3857 bgp_soft_reconfig_table(peer, afi, safi, NULL, NULL);
3858 else
3859 for (rn = bgp_table_top(peer->bgp->rib[afi][safi]); rn;
67009e22
DS		 3860 rn = bgp_route_next(rn)) {
3861 table = bgp_node_get_bgp_table_info(rn);
3862 if (table != NULL) {
d62a17ae 3863 struct prefix_rd prd;
67009e22 3864
d62a17ae 3865 prd.family = AF_UNSPEC;
3866 prd.prefixlen = 64;
3867 memcpy(&prd.val, rn->p.u.val, 8);
8692c506 3868
d62a17ae 3869 bgp_soft_reconfig_table(peer, afi, safi, table,
3870 &prd);
3871 }
67009e22 3872 }
718e3744 3873}
6b0655a2 3874
228da428 3875
d62a17ae 3876struct bgp_clear_node_queue {
3877 struct bgp_node *rn;
228da428
CC		 3878};
3879
d62a17ae 3880static wq_item_status bgp_clear_route_node(struct work_queue *wq, void *data)
200df115 3881{
d62a17ae 3882 struct bgp_clear_node_queue *cnq = data;
3883 struct bgp_node *rn = cnq->rn;
3884 struct peer *peer = wq->spec.data;
40381db7 3885 struct bgp_path_info *pi;
3103e8d2 3886 struct bgp *bgp;
d62a17ae 3887 afi_t afi = bgp_node_table(rn)->afi;
3888 safi_t safi = bgp_node_table(rn)->safi;
3889
3890 assert(rn && peer);
3103e8d2 3891 bgp = peer->bgp;
d62a17ae 3892
3893 /* It is possible that we have multiple paths for a prefix from a peer
3894 * if that peer is using AddPath.
3895 */
6f94b685 3896 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
40381db7 3897 if (pi->peer != peer)
ea47320b
DL		 3898 continue;
3899
3900 /* graceful restart STALE flag set. */
3901 if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)
3902 && peer->nsf[afi][safi]
40381db7
DS		 3903 && !CHECK_FLAG(pi->flags, BGP_PATH_STALE)
3904 && !CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE))
3905 bgp_path_info_set_flag(rn, pi, BGP_PATH_STALE);
ea47320b
DL		 3906 else {
3907 /* If this is an EVPN route, process for
3908 * un-import. */
3909 if (safi == SAFI_EVPN)
40381db7
DS		 3910 bgp_evpn_unimport_route(bgp, afi, safi, &rn->p,
3911 pi);
3103e8d2
DS		 3912 /* Handle withdraw for VRF route-leaking and L3VPN */
3913 if (SAFI_UNICAST == safi
3914 && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF ||
960035b2 3915 bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
3103e8d2 3916 vpn_leak_from_vrf_withdraw(bgp_get_default(),
40381db7 3917 bgp, pi);
960035b2 3918 }
3103e8d2 3919 if (SAFI_MPLS_VPN == safi &&
960035b2 3920 bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) {
40381db7 3921 vpn_leak_to_vrf_withdraw(bgp, pi);
960035b2 3922 }
3103e8d2 3923
40381db7 3924 bgp_rib_remove(rn, pi, peer, afi, safi);
d62a17ae 3925 }
ea47320b 3926 }
d62a17ae 3927 return WQ_SUCCESS;
200df115 3928}
3929
d62a17ae 3930static void bgp_clear_node_queue_del(struct work_queue *wq, void *data)
200df115 3931{
d62a17ae 3932 struct bgp_clear_node_queue *cnq = data;
3933 struct bgp_node *rn = cnq->rn;
3934 struct bgp_table *table = bgp_node_table(rn);
228da428 3935
d62a17ae 3936 bgp_unlock_node(rn);
3937 bgp_table_unlock(table);
3938 XFREE(MTYPE_BGP_CLEAR_NODE_QUEUE, cnq);
200df115 3939}
3940
d62a17ae 3941static void bgp_clear_node_complete(struct work_queue *wq)
200df115 3942{
d62a17ae 3943 struct peer *peer = wq->spec.data;
64e580a7 3944
d62a17ae 3945 /* Tickle FSM to start moving again */
3946 BGP_EVENT_ADD(peer, Clearing_Completed);
3947
3948 peer_unlock(peer); /* bgp_clear_route */
200df115 3949}
718e3744 3950
d62a17ae 3951static void bgp_clear_node_queue_init(struct peer *peer)
200df115 3952{
d62a17ae 3953 char wname[sizeof("clear xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx")];
3954
3955 snprintf(wname, sizeof(wname), "clear %s", peer->host);
3956#undef CLEAR_QUEUE_NAME_LEN
3957
0ce1ca80 3958 peer->clear_node_queue = work_queue_new(bm->master, wname);
d62a17ae 3959 peer->clear_node_queue->spec.hold = 10;
3960 peer->clear_node_queue->spec.workfunc = &bgp_clear_route_node;
3961 peer->clear_node_queue->spec.del_item_data = &bgp_clear_node_queue_del;
3962 peer->clear_node_queue->spec.completion_func = &bgp_clear_node_complete;
3963 peer->clear_node_queue->spec.max_retries = 0;
3964
3965 /* we only 'lock' this peer reference when the queue is actually active
3966 */
3967 peer->clear_node_queue->spec.data = peer;
65ca75e0
PJ		 3968}
3969
d62a17ae 3970static void bgp_clear_route_table(struct peer *peer, afi_t afi, safi_t safi,
3971 struct bgp_table *table)
65ca75e0 3972{
d62a17ae 3973 struct bgp_node *rn;
3974 int force = bm->process_main_queue ? 0 : 1;
6cf159b9 3975
d62a17ae 3976 if (!table)
3977 table = peer->bgp->rib[afi][safi];
dc83d712 3978
d62a17ae 3979 /* If still no table => afi/safi isn't configured at all or smth. */
3980 if (!table)
3981 return;
dc83d712 3982
d62a17ae 3983 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
40381db7 3984 struct bgp_path_info *pi, *next;
d62a17ae 3985 struct bgp_adj_in *ain;
3986 struct bgp_adj_in *ain_next;
3987
3988 /* XXX:TODO: This is suboptimal, every non-empty route_node is
3989 * queued for every clearing peer, regardless of whether it is
3990 * relevant to the peer at hand.
3991 *
3992 * Overview: There are 3 different indices which need to be
3993 * scrubbed, potentially, when a peer is removed:
3994 *
3995 * 1 peer's routes visible via the RIB (ie accepted routes)
3996 * 2 peer's routes visible by the (optional) peer's adj-in index
3997 * 3 other routes visible by the peer's adj-out index
3998 *
3999 * 3 there is no hurry in scrubbing, once the struct peer is
4000 * removed from bgp->peer, we could just GC such deleted peer's
4001 * adj-outs at our leisure.
4002 *
4003 * 1 and 2 must be 'scrubbed' in some way, at least made
4004 * invisible via RIB index before peer session is allowed to be
4005 * brought back up. So one needs to know when such a 'search' is
4006 * complete.
4007 *
4008 * Ideally:
4009 *
4010 * - there'd be a single global queue or a single RIB walker
4011 * - rather than tracking which route_nodes still need to be
4012 * examined on a peer basis, we'd track which peers still
4013 * aren't cleared
4014 *
4015 * Given that our per-peer prefix-counts now should be reliable,
4016 * this may actually be achievable. It doesn't seem to be a huge
4017 * problem at this time,
4018 *
4019 * It is possible that we have multiple paths for a prefix from
4020 * a peer
4021 * if that peer is using AddPath.
4022 */
4023 ain = rn->adj_in;
4024 while (ain) {
4025 ain_next = ain->next;
4026
4027 if (ain->peer == peer) {
4028 bgp_adj_in_remove(rn, ain);
4029 bgp_unlock_node(rn);
4030 }
4031
4032 ain = ain_next;
4033 }
4034
6f94b685 4035 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = next) {
40381db7
DS		 4036 next = pi->next;
4037 if (pi->peer != peer)
d62a17ae 4038 continue;
4039
4040 if (force)
40381db7 4041 bgp_path_info_reap(rn, pi);
d62a17ae 4042 else {
4043 struct bgp_clear_node_queue *cnq;
4044
4045 /* both unlocked in bgp_clear_node_queue_del */
4046 bgp_table_lock(bgp_node_table(rn));
4047 bgp_lock_node(rn);
4048 cnq = XCALLOC(
4049 MTYPE_BGP_CLEAR_NODE_QUEUE,
4050 sizeof(struct bgp_clear_node_queue));
4051 cnq->rn = rn;
4052 work_queue_add(peer->clear_node_queue, cnq);
4053 break;
4054 }
4055 }
4056 }
4057 return;
4058}
4059
4060void bgp_clear_route(struct peer *peer, afi_t afi, safi_t safi)
4061{
4062 struct bgp_node *rn;
4063 struct bgp_table *table;
4064
4065 if (peer->clear_node_queue == NULL)
4066 bgp_clear_node_queue_init(peer);
4067
4068 /* bgp_fsm.c keeps sessions in state Clearing, not transitioning to
4069 * Idle until it receives a Clearing_Completed event. This protects
4070 * against peers which flap faster than we can we clear, which could
4071 * lead to:
4072 *
4073 * a) race with routes from the new session being installed before
4074 * clear_route_node visits the node (to delete the route of that
4075 * peer)
4076 * b) resource exhaustion, clear_route_node likely leads to an entry
4077 * on the process_main queue. Fast-flapping could cause that queue
4078 * to grow and grow.
4079 */
4080
4081 /* lock peer in assumption that clear-node-queue will get nodes; if so,
4082 * the unlock will happen upon work-queue completion; other wise, the
4083 * unlock happens at the end of this function.
4084 */
4085 if (!peer->clear_node_queue->thread)
4086 peer_lock(peer);
4087
4088 if (safi != SAFI_MPLS_VPN && safi != SAFI_ENCAP && safi != SAFI_EVPN)
4089 bgp_clear_route_table(peer, afi, safi, NULL);
4090 else
4091 for (rn = bgp_table_top(peer->bgp->rib[afi][safi]); rn;
67009e22
DS		 4092 rn = bgp_route_next(rn)) {
4093 table = bgp_node_get_bgp_table_info(rn);
4094 if (!table)
4095 continue;
4096
4097 bgp_clear_route_table(peer, afi, safi, table);
4098 }
d62a17ae 4099
4100 /* unlock if no nodes got added to the clear-node-queue. */
4101 if (!peer->clear_node_queue->thread)
4102 peer_unlock(peer);
718e3744 4103}
d62a17ae 4104
4105void bgp_clear_route_all(struct peer *peer)
718e3744 4106{
d62a17ae 4107 afi_t afi;
4108 safi_t safi;
718e3744 4109
05c7a1cc
QY		 4110 FOREACH_AFI_SAFI (afi, safi)
4111 bgp_clear_route(peer, afi, safi);
65efcfce
LB		 4112
4113#if ENABLE_BGP_VNC
d62a17ae 4114 rfapiProcessPeerDown(peer);
65efcfce 4115#endif
718e3744 4116}
4117
d62a17ae 4118void bgp_clear_adj_in(struct peer *peer, afi_t afi, safi_t safi)
718e3744 4119{
d62a17ae 4120 struct bgp_table *table;
4121 struct bgp_node *rn;
4122 struct bgp_adj_in *ain;
4123 struct bgp_adj_in *ain_next;
718e3744 4124
d62a17ae 4125 table = peer->bgp->rib[afi][safi];
718e3744 4126
d62a17ae 4127 /* It is possible that we have multiple paths for a prefix from a peer
4128 * if that peer is using AddPath.
4129 */
4130 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
4131 ain = rn->adj_in;
43143c8f 4132
d62a17ae 4133 while (ain) {
4134 ain_next = ain->next;
43143c8f 4135
d62a17ae 4136 if (ain->peer == peer) {
4137 bgp_adj_in_remove(rn, ain);
4138 bgp_unlock_node(rn);
4139 }
43143c8f 4140
d62a17ae 4141 ain = ain_next;
4142 }
4143 }
718e3744 4144}
93406d87 4145
d62a17ae 4146void bgp_clear_stale_route(struct peer *peer, afi_t afi, safi_t safi)
4147{
4148 struct bgp_node *rn;
40381db7 4149 struct bgp_path_info *pi;
d62a17ae 4150 struct bgp_table *table;
4151
4152 if (safi == SAFI_MPLS_VPN) {
4153 for (rn = bgp_table_top(peer->bgp->rib[afi][safi]); rn;
4154 rn = bgp_route_next(rn)) {
4155 struct bgp_node *rm;
d62a17ae 4156
4157 /* look for neighbor in tables */
67009e22
DS		 4158 table = bgp_node_get_bgp_table_info(rn);
4159 if (!table)
ea47320b
DL		 4160 continue;
4161
4162 for (rm = bgp_table_top(table); rm;
4163 rm = bgp_route_next(rm))
6f94b685
DS		 4164 for (pi = bgp_node_get_bgp_path_info(rm); pi;
4165 pi = pi->next) {
40381db7 4166 if (pi->peer != peer)
ea47320b 4167 continue;
40381db7 4168 if (!CHECK_FLAG(pi->flags,
1defdda8 4169 BGP_PATH_STALE))
ea47320b
DL		 4170 break;
4171
40381db7 4172 bgp_rib_remove(rm, pi, peer, afi, safi);
ea47320b
DL		 4173 break;
4174 }
d62a17ae 4175 }
4176 } else {
4177 for (rn = bgp_table_top(peer->bgp->rib[afi][safi]); rn;
4178 rn = bgp_route_next(rn))
6f94b685
DS		 4179 for (pi = bgp_node_get_bgp_path_info(rn); pi;
4180 pi = pi->next) {
40381db7 4181 if (pi->peer != peer)
ea47320b 4182 continue;
40381db7 4183 if (!CHECK_FLAG(pi->flags, BGP_PATH_STALE))
d62a17ae 4184 break;
40381db7 4185 bgp_rib_remove(rn, pi, peer, afi, safi);
ea47320b
DL		 4186 break;
4187 }
d62a17ae 4188 }
93406d87 4189}
6b0655a2 4190
9dac9fc8
DA		 4191int bgp_outbound_policy_exists(struct peer *peer, struct bgp_filter *filter)
4192{
4193 if (peer->sort == BGP_PEER_EBGP
4194 && (ROUTE_MAP_OUT_NAME(filter) || PREFIX_LIST_OUT_NAME(filter)
4195 || FILTER_LIST_OUT_NAME(filter)
4196 || DISTRIBUTE_OUT_NAME(filter)))
4197 return 1;
4198 return 0;
4199}
4200
4201int bgp_inbound_policy_exists(struct peer *peer, struct bgp_filter *filter)
4202{
4203 if (peer->sort == BGP_PEER_EBGP
4204 && (ROUTE_MAP_IN_NAME(filter) || PREFIX_LIST_IN_NAME(filter)
4205 || FILTER_LIST_IN_NAME(filter)
4206 || DISTRIBUTE_IN_NAME(filter)))
4207 return 1;
4208 return 0;
4209}
4210
568e10ca 4211static void bgp_cleanup_table(struct bgp *bgp, struct bgp_table *table,
4212 safi_t safi)
bb86c601 4213{
d62a17ae 4214 struct bgp_node *rn;
40381db7 4215 struct bgp_path_info *pi;
4b7e6066 4216 struct bgp_path_info *next;
bb86c601 4217
d62a17ae 4218 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn))
6f94b685 4219 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = next) {
40381db7 4220 next = pi->next;
1b7bb747
CS		 4221
4222 /* Unimport EVPN routes from VRFs */
4223 if (safi == SAFI_EVPN)
4224 bgp_evpn_unimport_route(bgp, AFI_L2VPN,
4225 SAFI_EVPN,
4226 &rn->p, pi);
4227
40381db7
DS		 4228 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)
4229 && pi->type == ZEBRA_ROUTE_BGP
4230 && (pi->sub_type == BGP_ROUTE_NORMAL
4231 || pi->sub_type == BGP_ROUTE_AGGREGATE
4232 || pi->sub_type == BGP_ROUTE_IMPORTED)) {
ddb5b488 4233
d62a17ae 4234 if (bgp_fibupd_safi(safi))
40381db7
DS		 4235 bgp_zebra_withdraw(&rn->p, pi, bgp,
4236 safi);
4237 bgp_path_info_reap(rn, pi);
d62a17ae 4238 }
4239 }
bb86c601
LB		 4240}
4241
718e3744 4242/* Delete all kernel routes. */
d62a17ae 4243void bgp_cleanup_routes(struct bgp *bgp)
4244{
4245 afi_t afi;
4246 struct bgp_node *rn;
67009e22 4247 struct bgp_table *table;
d62a17ae 4248
4249 for (afi = AFI_IP; afi < AFI_MAX; ++afi) {
4250 if (afi == AFI_L2VPN)
4251 continue;
568e10ca 4252 bgp_cleanup_table(bgp, bgp->rib[afi][SAFI_UNICAST],
4253 SAFI_UNICAST);
d62a17ae 4254 /*
4255 * VPN and ENCAP and EVPN tables are two-level (RD is top level)
4256 */
4257 if (afi != AFI_L2VPN) {
4258 safi_t safi;
4259 safi = SAFI_MPLS_VPN;
4260 for (rn = bgp_table_top(bgp->rib[afi][safi]); rn;
4261 rn = bgp_route_next(rn)) {
67009e22
DS		 4262 table = bgp_node_get_bgp_table_info(rn);
4263 if (table != NULL) {
4264 bgp_cleanup_table(bgp, table, safi);
4265 bgp_table_finish(&table);
4266 bgp_node_set_bgp_table_info(rn, NULL);
d62a17ae 4267 bgp_unlock_node(rn);
4268 }
4269 }
4270 safi = SAFI_ENCAP;
4271 for (rn = bgp_table_top(bgp->rib[afi][safi]); rn;
4272 rn = bgp_route_next(rn)) {
67009e22
DS		 4273 table = bgp_node_get_bgp_table_info(rn);
4274 if (table != NULL) {
4275 bgp_cleanup_table(bgp, table, safi);
4276 bgp_table_finish(&table);
4277 bgp_node_set_bgp_table_info(rn, NULL);
d62a17ae 4278 bgp_unlock_node(rn);
4279 }
4280 }
4281 }
4282 }
4283 for (rn = bgp_table_top(bgp->rib[AFI_L2VPN][SAFI_EVPN]); rn;
4284 rn = bgp_route_next(rn)) {
67009e22
DS		 4285 table = bgp_node_get_bgp_table_info(rn);
4286 if (table != NULL) {
4287 bgp_cleanup_table(bgp, table, SAFI_EVPN);
4288 bgp_table_finish(&table);
4289 bgp_node_set_bgp_table_info(rn, NULL);
d62a17ae 4290 bgp_unlock_node(rn);
4291 }
bb86c601 4292 }
718e3744 4293}
4294
d62a17ae 4295void bgp_reset(void)
718e3744 4296{
d62a17ae 4297 vty_reset();
4298 bgp_zclient_reset();
4299 access_list_reset();
4300 prefix_list_reset();
718e3744 4301}
6b0655a2 4302
d62a17ae 4303static int bgp_addpath_encode_rx(struct peer *peer, afi_t afi, safi_t safi)
adbac85e 4304{
d62a17ae 4305 return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ADDPATH_AF_RX_ADV)
4306 && CHECK_FLAG(peer->af_cap[afi][safi],
4307 PEER_CAP_ADDPATH_AF_TX_RCV));
adbac85e
DW		 4308}
4309
718e3744 4310/* Parse NLRI stream. Withdraw NLRI is recognized by NULL attr
4311 value. */
d62a17ae 4312int bgp_nlri_parse_ip(struct peer *peer, struct attr *attr,
4313 struct bgp_nlri *packet)
4314{
d7c0a89a
QY		 4315 uint8_t *pnt;
4316 uint8_t *lim;
d62a17ae 4317 struct prefix p;
4318 int psize;
4319 int ret;
4320 afi_t afi;
4321 safi_t safi;
4322 int addpath_encoded;
d7c0a89a 4323 uint32_t addpath_id;
d62a17ae 4324
d62a17ae 4325 pnt = packet->nlri;
4326 lim = pnt + packet->length;
4327 afi = packet->afi;
4328 safi = packet->safi;
4329 addpath_id = 0;
4330 addpath_encoded = bgp_addpath_encode_rx(peer, afi, safi);
4331
4332 /* RFC4771 6.3 The NLRI field in the UPDATE message is checked for
4333 syntactic validity. If the field is syntactically incorrect,
4334 then the Error Subcode is set to Invalid Network Field. */
4335 for (; pnt < lim; pnt += psize) {
4336 /* Clear prefix structure. */
4337 memset(&p, 0, sizeof(struct prefix));
4338
4339 if (addpath_encoded) {
4340
4341 /* When packet overflow occurs return immediately. */
4342 if (pnt + BGP_ADDPATH_ID_LEN > lim)
513386b5 4343 return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW;
d62a17ae 4344
4345 addpath_id = ntohl(*((uint32_t *)pnt));
4346 pnt += BGP_ADDPATH_ID_LEN;
4347 }
718e3744 4348
d62a17ae 4349 /* Fetch prefix length. */
4350 p.prefixlen = *pnt++;
4351 /* afi/safi validity already verified by caller,
4352 * bgp_update_receive */
4353 p.family = afi2family(afi);
4354
4355 /* Prefix length check. */
4356 if (p.prefixlen > prefix_blen(&p) * 8) {
af4c2728 4357 flog_err(
e50f7cfd 4358 EC_BGP_UPDATE_RCV,
14454c9f 4359 "%s [Error] Update packet error (wrong prefix length %d for afi %u)",
d62a17ae 4360 peer->host, p.prefixlen, packet->afi);
513386b5 4361 return BGP_NLRI_PARSE_ERROR_PREFIX_LENGTH;
d62a17ae 4362 }
6b0655a2 4363
d62a17ae 4364 /* Packet size overflow check. */
4365 psize = PSIZE(p.prefixlen);
4366
4367 /* When packet overflow occur return immediately. */
4368 if (pnt + psize > lim) {
af4c2728 4369 flog_err(
e50f7cfd 4370 EC_BGP_UPDATE_RCV,
d62a17ae 4371 "%s [Error] Update packet error (prefix length %d overflows packet)",
4372 peer->host, p.prefixlen);
513386b5 4373 return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW;
d62a17ae 4374 }
4375
4376 /* Defensive coding, double-check the psize fits in a struct
4377 * prefix */
4378 if (psize > (ssize_t)sizeof(p.u)) {
af4c2728 4379 flog_err(
e50f7cfd 4380 EC_BGP_UPDATE_RCV,
d62a17ae 4381 "%s [Error] Update packet error (prefix length %d too large for prefix storage %zu)",
4382 peer->host, p.prefixlen, sizeof(p.u));
513386b5 4383 return BGP_NLRI_PARSE_ERROR_PACKET_LENGTH;
d62a17ae 4384 }
4385
4386 /* Fetch prefix from NLRI packet. */
a85297a7 4387 memcpy(p.u.val, pnt, psize);
d62a17ae 4388
4389 /* Check address. */
4390 if (afi == AFI_IP && safi == SAFI_UNICAST) {
4391 if (IN_CLASSD(ntohl(p.u.prefix4.s_addr))) {
4392 /* From RFC4271 Section 6.3:
4393 *
4394 * If a prefix in the NLRI field is semantically
4395 * incorrect
4396 * (e.g., an unexpected multicast IP address),
4397 * an error SHOULD
4398 * be logged locally, and the prefix SHOULD be
4399 * ignored.
a4d82a8a 4400 */
af4c2728 4401 flog_err(
e50f7cfd 4402 EC_BGP_UPDATE_RCV,
d62a17ae 4403 "%s: IPv4 unicast NLRI is multicast address %s, ignoring",
4404 peer->host, inet_ntoa(p.u.prefix4));
4405 continue;
4406 }
4407 }
4408
4409 /* Check address. */
4410 if (afi == AFI_IP6 && safi == SAFI_UNICAST) {
4411 if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) {
4412 char buf[BUFSIZ];
4413
af4c2728 4414 flog_err(
e50f7cfd 4415 EC_BGP_UPDATE_RCV,
d62a17ae 4416 "%s: IPv6 unicast NLRI is link-local address %s, ignoring",
4417 peer->host,
4418 inet_ntop(AF_INET6, &p.u.prefix6, buf,
4419 BUFSIZ));
4420
4421 continue;
4422 }
4423 if (IN6_IS_ADDR_MULTICAST(&p.u.prefix6)) {
4424 char buf[BUFSIZ];
4425
af4c2728 4426 flog_err(
e50f7cfd 4427 EC_BGP_UPDATE_RCV,
d62a17ae 4428 "%s: IPv6 unicast NLRI is multicast address %s, ignoring",
4429 peer->host,
4430 inet_ntop(AF_INET6, &p.u.prefix6, buf,
4431 BUFSIZ));
4432
4433 continue;
4434 }
4435 }
4436
4437 /* Normal process. */
4438 if (attr)
4439 ret = bgp_update(peer, &p, addpath_id, attr, afi, safi,
4440 ZEBRA_ROUTE_BGP, BGP_ROUTE_NORMAL,
b57ba6d2 4441 NULL, NULL, 0, 0, NULL);
d62a17ae 4442 else
4443 ret = bgp_withdraw(peer, &p, addpath_id, attr, afi,
4444 safi, ZEBRA_ROUTE_BGP,
a4d82a8a
PZ		 4445 BGP_ROUTE_NORMAL, NULL, NULL, 0,
4446 NULL);
d62a17ae 4447
513386b5
DA		 4448 /* Do not send BGP notification twice when maximum-prefix count
4449 * overflow. */
4450 if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW))
4451 return BGP_NLRI_PARSE_ERROR_PREFIX_OVERFLOW;
4452
4453 /* Address family configuration mismatch. */
d62a17ae 4454 if (ret < 0)
513386b5 4455 return BGP_NLRI_PARSE_ERROR_ADDRESS_FAMILY;
d62a17ae 4456 }
4457
4458 /* Packet length consistency check. */
4459 if (pnt != lim) {
af4c2728 4460 flog_err(
e50f7cfd 4461 EC_BGP_UPDATE_RCV,
d62a17ae 4462 "%s [Error] Update packet error (prefix length mismatch with total length)",
4463 peer->host);
513386b5 4464 return BGP_NLRI_PARSE_ERROR_PACKET_LENGTH;
d62a17ae 4465 }
6b0655a2 4466
513386b5 4467 return BGP_NLRI_PARSE_OK;
718e3744 4468}
4469
d62a17ae 4470static struct bgp_static *bgp_static_new(void)
718e3744 4471{
d62a17ae 4472 return XCALLOC(MTYPE_BGP_STATIC, sizeof(struct bgp_static));
718e3744 4473}
4474
d62a17ae 4475static void bgp_static_free(struct bgp_static *bgp_static)
fee0f4c6 4476{
0a22ddfb 4477 XFREE(MTYPE_ROUTE_MAP_NAME, bgp_static->rmap.name);
b4897fa5 4478 route_map_counter_decrement(bgp_static->rmap.map);
4479
0a22ddfb 4480 XFREE(MTYPE_ATTR, bgp_static->eth_s_id);
d62a17ae 4481 XFREE(MTYPE_BGP_STATIC, bgp_static);
4482}
4483
4484void bgp_static_update(struct bgp *bgp, struct prefix *p,
4485 struct bgp_static *bgp_static, afi_t afi, safi_t safi)
4486{
4487 struct bgp_node *rn;
40381db7 4488 struct bgp_path_info *pi;
4b7e6066 4489 struct bgp_path_info *new;
40381db7 4490 struct bgp_path_info rmap_path;
d62a17ae 4491 struct attr attr;
4492 struct attr *attr_new;
4493 int ret;
65efcfce 4494#if ENABLE_BGP_VNC
d62a17ae 4495 int vnc_implicit_withdraw = 0;
65efcfce 4496#endif
fee0f4c6 4497
d62a17ae 4498 assert(bgp_static);
4499 if (!bgp_static)
4500 return;
dd8103a9 4501
d62a17ae 4502 rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, NULL);
718e3744 4503
d62a17ae 4504 bgp_attr_default_set(&attr, BGP_ORIGIN_IGP);
718e3744 4505
d62a17ae 4506 attr.nexthop = bgp_static->igpnexthop;
4507 attr.med = bgp_static->igpmetric;
4508 attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC);
41367172 4509
d62a17ae 4510 if (bgp_static->atomic)
4511 attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE);
6cf48acc 4512
d62a17ae 4513 /* Store label index, if required. */
4514 if (bgp_static->label_index != BGP_INVALID_LABEL_INDEX) {
4515 attr.label_index = bgp_static->label_index;
4516 attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_PREFIX_SID);
4517 }
718e3744 4518
d62a17ae 4519 /* Apply route-map. */
4520 if (bgp_static->rmap.name) {
4521 struct attr attr_tmp = attr;
80ced710 4522
40381db7
DS		 4523 memset(&rmap_path, 0, sizeof(struct bgp_path_info));
4524 rmap_path.peer = bgp->peer_self;
4525 rmap_path.attr = &attr_tmp;
fee0f4c6 4526
d62a17ae 4527 SET_FLAG(bgp->peer_self->rmap_type, PEER_RMAP_TYPE_NETWORK);
286e1e71 4528
40381db7
DS		 4529 ret = route_map_apply(bgp_static->rmap.map, p, RMAP_BGP,
4530 &rmap_path);
fee0f4c6 4531
d62a17ae 4532 bgp->peer_self->rmap_type = 0;
718e3744 4533
d62a17ae 4534 if (ret == RMAP_DENYMATCH) {
4535 /* Free uninterned attribute. */
4536 bgp_attr_flush(&attr_tmp);
718e3744 4537
d62a17ae 4538 /* Unintern original. */
4539 aspath_unintern(&attr.aspath);
4540 bgp_static_withdraw(bgp, p, afi, safi);
4541 return;
4542 }
7f323236
DW		 4543
4544 if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN))
4545 bgp_attr_add_gshut_community(&attr_tmp);
4546
d62a17ae 4547 attr_new = bgp_attr_intern(&attr_tmp);
7f323236
DW		 4548 } else {
4549
4550 if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN))
4551 bgp_attr_add_gshut_community(&attr);
4552
d62a17ae 4553 attr_new = bgp_attr_intern(&attr);
7f323236 4554 }
718e3744 4555
6f94b685 4556 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7
DS		 4557 if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP
4558 && pi->sub_type == BGP_ROUTE_STATIC)
d62a17ae 4559 break;
4560
40381db7
DS		 4561 if (pi) {
4562 if (attrhash_cmp(pi->attr, attr_new)
4563 && !CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)
d62a17ae 4564 && !bgp_flag_check(bgp, BGP_FLAG_FORCE_STATIC_PROCESS)) {
4565 bgp_unlock_node(rn);
4566 bgp_attr_unintern(&attr_new);
4567 aspath_unintern(&attr.aspath);
4568 return;
4569 } else {
4570 /* The attribute is changed. */
40381db7 4571 bgp_path_info_set_flag(rn, pi, BGP_PATH_ATTR_CHANGED);
d62a17ae 4572
4573 /* Rewrite BGP route information. */
40381db7
DS		 4574 if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED))
4575 bgp_path_info_restore(rn, pi);
d62a17ae 4576 else
40381db7 4577 bgp_aggregate_decrement(bgp, p, pi, afi, safi);
65efcfce 4578#if ENABLE_BGP_VNC
d62a17ae 4579 if ((afi == AFI_IP || afi == AFI_IP6)
4580 && (safi == SAFI_UNICAST)) {
40381db7 4581 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) {
d62a17ae 4582 /*
4583 * Implicit withdraw case.
40381db7 4584 * We have to do this before pi is
d62a17ae 4585 * changed
4586 */
4587 ++vnc_implicit_withdraw;
40381db7 4588 vnc_import_bgp_del_route(bgp, p, pi);
d62a17ae 4589 vnc_import_bgp_exterior_del_route(
40381db7 4590 bgp, p, pi);
d62a17ae 4591 }
4592 }
65efcfce 4593#endif
40381db7
DS		 4594 bgp_attr_unintern(&pi->attr);
4595 pi->attr = attr_new;
4596 pi->uptime = bgp_clock();
65efcfce 4597#if ENABLE_BGP_VNC
d62a17ae 4598 if ((afi == AFI_IP || afi == AFI_IP6)
4599 && (safi == SAFI_UNICAST)) {
4600 if (vnc_implicit_withdraw) {
40381db7 4601 vnc_import_bgp_add_route(bgp, p, pi);
d62a17ae 4602 vnc_import_bgp_exterior_add_route(
40381db7 4603 bgp, p, pi);
d62a17ae 4604 }
4605 }
65efcfce 4606#endif
718e3744 4607
d62a17ae 4608 /* Nexthop reachability check. */
4609 if (bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK)
4610 && (safi == SAFI_UNICAST
4611 || safi == SAFI_LABELED_UNICAST)) {
960035b2
PZ		 4612
4613 struct bgp *bgp_nexthop = bgp;
4614
40381db7
DS		 4615 if (pi->extra && pi->extra->bgp_orig)
4616 bgp_nexthop = pi->extra->bgp_orig;
960035b2
PZ		 4617
4618 if (bgp_find_or_add_nexthop(bgp, bgp_nexthop,
40381db7
DS		 4619 afi, pi, NULL, 0))
4620 bgp_path_info_set_flag(rn, pi,
18ee8310 4621 BGP_PATH_VALID);
d62a17ae 4622 else {
4623 if (BGP_DEBUG(nht, NHT)) {
4624 char buf1[INET6_ADDRSTRLEN];
4625 inet_ntop(p->family,
4626 &p->u.prefix, buf1,
4627 INET6_ADDRSTRLEN);
4628 zlog_debug(
4629 "%s(%s): Route not in table, not advertising",
4630 __FUNCTION__, buf1);
4631 }
18ee8310 4632 bgp_path_info_unset_flag(
40381db7 4633 rn, pi, BGP_PATH_VALID);
d62a17ae 4634 }
4635 } else {
4636 /* Delete the NHT structure if any, if we're
4637 * toggling between
4638 * enabling/disabling import check. We
4639 * deregister the route
4640 * from NHT to avoid overloading NHT and the
4641 * process interaction
4642 */
40381db7
DS		 4643 bgp_unlink_nexthop(pi);
4644 bgp_path_info_set_flag(rn, pi, BGP_PATH_VALID);
d62a17ae 4645 }
4646 /* Process change. */
40381db7 4647 bgp_aggregate_increment(bgp, p, pi, afi, safi);
d62a17ae 4648 bgp_process(bgp, rn, afi, safi);
ddb5b488
PZ		 4649
4650 if (SAFI_UNICAST == safi
4651 && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF
4652 || bgp->inst_type
4653 == BGP_INSTANCE_TYPE_DEFAULT)) {
4654 vpn_leak_from_vrf_update(bgp_get_default(), bgp,
40381db7 4655 pi);
ddb5b488
PZ		 4656 }
4657
d62a17ae 4658 bgp_unlock_node(rn);
4659 aspath_unintern(&attr.aspath);
4660 return;
4661 }
718e3744 4662 }
718e3744 4663
d62a17ae 4664 /* Make new BGP info. */
4665 new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_STATIC, 0, bgp->peer_self,
4666 attr_new, rn);
4667 /* Nexthop reachability check. */
4668 if (bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK)
4669 && (safi == SAFI_UNICAST || safi == SAFI_LABELED_UNICAST)) {
960035b2 4670 if (bgp_find_or_add_nexthop(bgp, bgp, afi, new, NULL, 0))
18ee8310 4671 bgp_path_info_set_flag(rn, new, BGP_PATH_VALID);
d62a17ae 4672 else {
4673 if (BGP_DEBUG(nht, NHT)) {
4674 char buf1[INET6_ADDRSTRLEN];
4675 inet_ntop(p->family, &p->u.prefix, buf1,
4676 INET6_ADDRSTRLEN);
4677 zlog_debug(
4678 "%s(%s): Route not in table, not advertising",
4679 __FUNCTION__, buf1);
4680 }
18ee8310 4681 bgp_path_info_unset_flag(rn, new, BGP_PATH_VALID);
d62a17ae 4682 }
4683 } else {
4684 /* Delete the NHT structure if any, if we're toggling between
4685 * enabling/disabling import check. We deregister the route
4686 * from NHT to avoid overloading NHT and the process interaction
4687 */
4688 bgp_unlink_nexthop(new);
4689
18ee8310 4690 bgp_path_info_set_flag(rn, new, BGP_PATH_VALID);
fc9a856f 4691 }
078430f6 4692
d62a17ae 4693 /* Aggregate address increment. */
4694 bgp_aggregate_increment(bgp, p, new, afi, safi);
718e3744 4695
d62a17ae 4696 /* Register new BGP information. */
18ee8310 4697 bgp_path_info_add(rn, new);
718e3744 4698
d62a17ae 4699 /* route_node_get lock */
4700 bgp_unlock_node(rn);
4701
4702 /* Process change. */
4703 bgp_process(bgp, rn, afi, safi);
4704
ddb5b488
PZ		 4705 if (SAFI_UNICAST == safi
4706 && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF
4707 || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
4708 vpn_leak_from_vrf_update(bgp_get_default(), bgp, new);
4709 }
4710
d62a17ae 4711 /* Unintern original. */
4712 aspath_unintern(&attr.aspath);
718e3744 4713}
4714
d62a17ae 4715void bgp_static_withdraw(struct bgp *bgp, struct prefix *p, afi_t afi,
4716 safi_t safi)
718e3744 4717{
d62a17ae 4718 struct bgp_node *rn;
40381db7 4719 struct bgp_path_info *pi;
718e3744 4720
d62a17ae 4721 rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, NULL);
718e3744 4722
d62a17ae 4723 /* Check selected route and self inserted route. */
6f94b685 4724 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7
DS		 4725 if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP
4726 && pi->sub_type == BGP_ROUTE_STATIC)
d62a17ae 4727 break;
4728
4729 /* Withdraw static BGP route from routing table. */
40381db7 4730 if (pi) {
ddb5b488
PZ		 4731 if (SAFI_UNICAST == safi
4732 && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF
4733 || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
40381db7 4734 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp, pi);
ddb5b488 4735 }
40381db7
DS		 4736 bgp_aggregate_decrement(bgp, p, pi, afi, safi);
4737 bgp_unlink_nexthop(pi);
4738 bgp_path_info_delete(rn, pi);
d62a17ae 4739 bgp_process(bgp, rn, afi, safi);
4740 }
718e3744 4741
d62a17ae 4742 /* Unlock bgp_node_lookup. */
4743 bgp_unlock_node(rn);
718e3744 4744}
4745
137446f9
LB		 4746/*
4747 * Used for SAFI_MPLS_VPN and SAFI_ENCAP
4748 */
d62a17ae 4749static void bgp_static_withdraw_safi(struct bgp *bgp, struct prefix *p,
4750 afi_t afi, safi_t safi,
4751 struct prefix_rd *prd)
718e3744 4752{
d62a17ae 4753 struct bgp_node *rn;
40381db7 4754 struct bgp_path_info *pi;
718e3744 4755
d62a17ae 4756 rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, prd);
718e3744 4757
d62a17ae 4758 /* Check selected route and self inserted route. */
6f94b685 4759 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7
DS		 4760 if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP
4761 && pi->sub_type == BGP_ROUTE_STATIC)
d62a17ae 4762 break;
718e3744 4763
d62a17ae 4764 /* Withdraw static BGP route from routing table. */
40381db7 4765 if (pi) {
65efcfce 4766#if ENABLE_BGP_VNC
d62a17ae 4767 rfapiProcessWithdraw(
40381db7 4768 pi->peer, NULL, p, prd, pi->attr, afi, safi, pi->type,
d62a17ae 4769 1); /* Kill, since it is an administrative change */
65efcfce 4770#endif
ddb5b488
PZ		 4771 if (SAFI_MPLS_VPN == safi
4772 && bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) {
40381db7 4773 vpn_leak_to_vrf_withdraw(bgp, pi);
ddb5b488 4774 }
40381db7
DS		 4775 bgp_aggregate_decrement(bgp, p, pi, afi, safi);
4776 bgp_path_info_delete(rn, pi);
d62a17ae 4777 bgp_process(bgp, rn, afi, safi);
4778 }
718e3744 4779
d62a17ae 4780 /* Unlock bgp_node_lookup. */
4781 bgp_unlock_node(rn);
718e3744 4782}
4783
d62a17ae 4784static void bgp_static_update_safi(struct bgp *bgp, struct prefix *p,
4785 struct bgp_static *bgp_static, afi_t afi,
4786 safi_t safi)
137446f9 4787{
d62a17ae 4788 struct bgp_node *rn;
4b7e6066 4789 struct bgp_path_info *new;
d62a17ae 4790 struct attr *attr_new;
4791 struct attr attr = {0};
40381db7 4792 struct bgp_path_info *pi;
65efcfce 4793#if ENABLE_BGP_VNC
d62a17ae 4794 mpls_label_t label = 0;
65efcfce 4795#endif
d7c0a89a 4796 uint32_t num_labels = 0;
d62a17ae 4797 union gw_addr add;
137446f9 4798
d62a17ae 4799 assert(bgp_static);
137446f9 4800
b57ba6d2
MK		 4801 if (bgp_static->label != MPLS_INVALID_LABEL)
4802 num_labels = 1;
d62a17ae 4803 rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p,
4804 &bgp_static->prd);
137446f9 4805
d62a17ae 4806 bgp_attr_default_set(&attr, BGP_ORIGIN_IGP);
137446f9 4807
d62a17ae 4808 attr.nexthop = bgp_static->igpnexthop;
4809 attr.med = bgp_static->igpmetric;
4810 attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC);
137446f9 4811
d62a17ae 4812 if ((safi == SAFI_EVPN) || (safi == SAFI_MPLS_VPN)
4813 || (safi == SAFI_ENCAP)) {
4814 if (afi == AFI_IP) {
4815 attr.mp_nexthop_global_in = bgp_static->igpnexthop;
4816 attr.mp_nexthop_len = IPV4_MAX_BYTELEN;
4817 }
4818 }
4819 if (afi == AFI_L2VPN) {
4820 if (bgp_static->gatewayIp.family == AF_INET)
4821 add.ipv4.s_addr =
4822 bgp_static->gatewayIp.u.prefix4.s_addr;
4823 else if (bgp_static->gatewayIp.family == AF_INET6)
4824 memcpy(&(add.ipv6), &(bgp_static->gatewayIp.u.prefix6),
4825 sizeof(struct in6_addr));
4826 overlay_index_update(&attr, bgp_static->eth_s_id, &add);
4827 if (bgp_static->encap_tunneltype == BGP_ENCAP_TYPE_VXLAN) {
4828 struct bgp_encap_type_vxlan bet;
4829 memset(&bet, 0, sizeof(struct bgp_encap_type_vxlan));
3714a385 4830 bet.vnid = p->u.prefix_evpn.prefix_addr.eth_tag;
d62a17ae 4831 bgp_encap_type_vxlan_to_tlv(&bet, &attr);
4832 }
4833 if (bgp_static->router_mac) {
4834 bgp_add_routermac_ecom(&attr, bgp_static->router_mac);
4835 }
4836 }
4837 /* Apply route-map. */
4838 if (bgp_static->rmap.name) {
4839 struct attr attr_tmp = attr;
40381db7 4840 struct bgp_path_info rmap_path;
d62a17ae 4841 int ret;
137446f9 4842
40381db7
DS		 4843 rmap_path.peer = bgp->peer_self;
4844 rmap_path.attr = &attr_tmp;
137446f9 4845
d62a17ae 4846 SET_FLAG(bgp->peer_self->rmap_type, PEER_RMAP_TYPE_NETWORK);
137446f9 4847
40381db7
DS		 4848 ret = route_map_apply(bgp_static->rmap.map, p, RMAP_BGP,
4849 &rmap_path);
137446f9 4850
d62a17ae 4851 bgp->peer_self->rmap_type = 0;
137446f9 4852
d62a17ae 4853 if (ret == RMAP_DENYMATCH) {
4854 /* Free uninterned attribute. */
4855 bgp_attr_flush(&attr_tmp);
137446f9 4856
d62a17ae 4857 /* Unintern original. */
4858 aspath_unintern(&attr.aspath);
4859 bgp_static_withdraw_safi(bgp, p, afi, safi,
4860 &bgp_static->prd);
4861 return;
4862 }
137446f9 4863
d62a17ae 4864 attr_new = bgp_attr_intern(&attr_tmp);
4865 } else {
4866 attr_new = bgp_attr_intern(&attr);
4867 }
137446f9 4868
6f94b685 4869 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7
DS		 4870 if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP
4871 && pi->sub_type == BGP_ROUTE_STATIC)
d62a17ae 4872 break;
4873
40381db7 4874 if (pi) {
d62a17ae 4875 memset(&add, 0, sizeof(union gw_addr));
40381db7
DS		 4876 if (attrhash_cmp(pi->attr, attr_new)
4877 && overlay_index_equal(afi, pi, bgp_static->eth_s_id, &add)
4878 && !CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) {
d62a17ae 4879 bgp_unlock_node(rn);
4880 bgp_attr_unintern(&attr_new);
4881 aspath_unintern(&attr.aspath);
4882 return;
4883 } else {
4884 /* The attribute is changed. */
40381db7 4885 bgp_path_info_set_flag(rn, pi, BGP_PATH_ATTR_CHANGED);
d62a17ae 4886
4887 /* Rewrite BGP route information. */
40381db7
DS		 4888 if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED))
4889 bgp_path_info_restore(rn, pi);
d62a17ae 4890 else
40381db7
DS		 4891 bgp_aggregate_decrement(bgp, p, pi, afi, safi);
4892 bgp_attr_unintern(&pi->attr);
4893 pi->attr = attr_new;
4894 pi->uptime = bgp_clock();
65efcfce 4895#if ENABLE_BGP_VNC
40381db7
DS		 4896 if (pi->extra)
4897 label = decode_label(&pi->extra->label[0]);
65efcfce 4898#endif
137446f9 4899
d62a17ae 4900 /* Process change. */
40381db7 4901 bgp_aggregate_increment(bgp, p, pi, afi, safi);
d62a17ae 4902 bgp_process(bgp, rn, afi, safi);
ddb5b488
PZ		 4903
4904 if (SAFI_MPLS_VPN == safi
4905 && bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) {
40381db7 4906 vpn_leak_to_vrf_update(bgp, pi);
ddb5b488 4907 }
65efcfce 4908#if ENABLE_BGP_VNC
40381db7
DS		 4909 rfapiProcessUpdate(pi->peer, NULL, p, &bgp_static->prd,
4910 pi->attr, afi, safi, pi->type,
4911 pi->sub_type, &label);
65efcfce 4912#endif
d62a17ae 4913 bgp_unlock_node(rn);
4914 aspath_unintern(&attr.aspath);
4915 return;
4916 }
4917 }
137446f9
LB		 4918
4919
d62a17ae 4920 /* Make new BGP info. */
4921 new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_STATIC, 0, bgp->peer_self,
4922 attr_new, rn);
1defdda8 4923 SET_FLAG(new->flags, BGP_PATH_VALID);
18ee8310 4924 new->extra = bgp_path_info_extra_new();
b57ba6d2
MK		 4925 if (num_labels) {
4926 new->extra->label[0] = bgp_static->label;
4927 new->extra->num_labels = num_labels;
4928 }
65efcfce 4929#if ENABLE_BGP_VNC
d62a17ae 4930 label = decode_label(&bgp_static->label);
65efcfce 4931#endif
137446f9 4932
d62a17ae 4933 /* Aggregate address increment. */
4934 bgp_aggregate_increment(bgp, p, new, afi, safi);
137446f9 4935
d62a17ae 4936 /* Register new BGP information. */
18ee8310 4937 bgp_path_info_add(rn, new);
d62a17ae 4938 /* route_node_get lock */
4939 bgp_unlock_node(rn);
137446f9 4940
d62a17ae 4941 /* Process change. */
4942 bgp_process(bgp, rn, afi, safi);
137446f9 4943
ddb5b488
PZ		 4944 if (SAFI_MPLS_VPN == safi
4945 && bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) {
4946 vpn_leak_to_vrf_update(bgp, new);
4947 }
65efcfce 4948#if ENABLE_BGP_VNC
d62a17ae 4949 rfapiProcessUpdate(new->peer, NULL, p, &bgp_static->prd, new->attr, afi,
4950 safi, new->type, new->sub_type, &label);
65efcfce
LB		 4951#endif
4952
d62a17ae 4953 /* Unintern original. */
4954 aspath_unintern(&attr.aspath);
137446f9
LB		 4955}
4956
718e3744 4957/* Configure static BGP network. When user don't run zebra, static
4958 route should be installed as valid. */
e2a86ad9
DS		 4959static int bgp_static_set(struct vty *vty, const char *negate,
4960 const char *ip_str, afi_t afi, safi_t safi,
d7c0a89a 4961 const char *rmap, int backdoor, uint32_t label_index)
d62a17ae 4962{
4963 VTY_DECLVAR_CONTEXT(bgp, bgp);
4964 int ret;
4965 struct prefix p;
4966 struct bgp_static *bgp_static;
4967 struct bgp_node *rn;
d7c0a89a 4968 uint8_t need_update = 0;
d62a17ae 4969
4970 /* Convert IP prefix string to struct prefix. */
4971 ret = str2prefix(ip_str, &p);
4972 if (!ret) {
4973 vty_out(vty, "%% Malformed prefix\n");
4974 return CMD_WARNING_CONFIG_FAILED;
4975 }
4976 if (afi == AFI_IP6 && IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) {
4977 vty_out(vty, "%% Malformed prefix (link-local address)\n");
4978 return CMD_WARNING_CONFIG_FAILED;
4979 }
718e3744 4980
d62a17ae 4981 apply_mask(&p);
718e3744 4982
e2a86ad9 4983 if (negate) {
718e3744 4984
e2a86ad9
DS		 4985 /* Set BGP static route configuration. */
4986 rn = bgp_node_lookup(bgp->route[afi][safi], &p);
d62a17ae 4987
e2a86ad9 4988 if (!rn) {
a4d82a8a 4989 vty_out(vty, "%% Can't find static route specified\n");
d62a17ae 4990 return CMD_WARNING_CONFIG_FAILED;
4991 }
4992
5a8ba9fc 4993 bgp_static = bgp_node_get_bgp_static_info(rn);
d62a17ae 4994
e2a86ad9
DS		 4995 if ((label_index != BGP_INVALID_LABEL_INDEX)
4996 && (label_index != bgp_static->label_index)) {
4997 vty_out(vty,
4998 "%% label-index doesn't match static route\n");
4999 return CMD_WARNING_CONFIG_FAILED;
d62a17ae 5000 }
d62a17ae 5001
e2a86ad9
DS		 5002 if ((rmap && bgp_static->rmap.name)
5003 && strcmp(rmap, bgp_static->rmap.name)) {
5004 vty_out(vty,
5005 "%% route-map name doesn't match static route\n");
5006 return CMD_WARNING_CONFIG_FAILED;
d62a17ae 5007 }
718e3744 5008
e2a86ad9
DS		 5009 /* Update BGP RIB. */
5010 if (!bgp_static->backdoor)
5011 bgp_static_withdraw(bgp, &p, afi, safi);
718e3744 5012
e2a86ad9
DS		 5013 /* Clear configuration. */
5014 bgp_static_free(bgp_static);
5a8ba9fc 5015 bgp_node_set_bgp_static_info(rn, NULL);
e2a86ad9
DS		 5016 bgp_unlock_node(rn);
5017 bgp_unlock_node(rn);
5018 } else {
718e3744 5019
e2a86ad9
DS		 5020 /* Set BGP static route configuration. */
5021 rn = bgp_node_get(bgp->route[afi][safi], &p);
718e3744 5022
5a8ba9fc 5023 bgp_static = bgp_node_get_bgp_static_info(rn);
a78beeb5 5024 if (bgp_static) {
e2a86ad9 5025 /* Configuration change. */
e2a86ad9
DS		 5026 /* Label index cannot be changed. */
5027 if (bgp_static->label_index != label_index) {
5028 vty_out(vty, "%% cannot change label-index\n");
5029 return CMD_WARNING_CONFIG_FAILED;
5030 }
d62a17ae 5031
e2a86ad9 5032 /* Check previous routes are installed into BGP. */
a4d82a8a
PZ		 5033 if (bgp_static->valid
5034 && bgp_static->backdoor != backdoor)
e2a86ad9 5035 need_update = 1;
718e3744 5036
e2a86ad9 5037 bgp_static->backdoor = backdoor;
718e3744 5038
e2a86ad9 5039 if (rmap) {
0a22ddfb
QY		 5040 XFREE(MTYPE_ROUTE_MAP_NAME,
5041 bgp_static->rmap.name);
b4897fa5 5042 route_map_counter_decrement(
5043 bgp_static->rmap.map);
e2a86ad9
DS		 5044 bgp_static->rmap.name =
5045 XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap);
5046 bgp_static->rmap.map =
5047 route_map_lookup_by_name(rmap);
b4897fa5 5048 route_map_counter_increment(
5049 bgp_static->rmap.map);
e2a86ad9 5050 } else {
0a22ddfb
QY		 5051 XFREE(MTYPE_ROUTE_MAP_NAME,
5052 bgp_static->rmap.name);
b4897fa5 5053 route_map_counter_decrement(
5054 bgp_static->rmap.map);
e2a86ad9
DS		 5055 bgp_static->rmap.name = NULL;
5056 bgp_static->rmap.map = NULL;
5057 bgp_static->valid = 0;
5058 }
5059 bgp_unlock_node(rn);
5060 } else {
5061 /* New configuration. */
5062 bgp_static = bgp_static_new();
5063 bgp_static->backdoor = backdoor;
5064 bgp_static->valid = 0;
5065 bgp_static->igpmetric = 0;
5066 bgp_static->igpnexthop.s_addr = 0;
5067 bgp_static->label_index = label_index;
718e3744 5068
e2a86ad9 5069 if (rmap) {
0a22ddfb
QY		 5070 XFREE(MTYPE_ROUTE_MAP_NAME,
5071 bgp_static->rmap.name);
b4897fa5 5072 route_map_counter_decrement(
5073 bgp_static->rmap.map);
e2a86ad9
DS		 5074 bgp_static->rmap.name =
5075 XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap);
5076 bgp_static->rmap.map =
5077 route_map_lookup_by_name(rmap);
b4897fa5 5078 route_map_counter_increment(
5079 bgp_static->rmap.map);
e2a86ad9 5080 }
5a8ba9fc 5081 bgp_node_set_bgp_static_info(rn, bgp_static);
e2a86ad9 5082 }
d62a17ae 5083
e2a86ad9
DS		 5084 bgp_static->valid = 1;
5085 if (need_update)
5086 bgp_static_withdraw(bgp, &p, afi, safi);
d62a17ae 5087
e2a86ad9
DS		 5088 if (!bgp_static->backdoor)
5089 bgp_static_update(bgp, &p, bgp_static, afi, safi);
5090 }
d62a17ae 5091
5092 return CMD_SUCCESS;
5093}
5094
5095void bgp_static_add(struct bgp *bgp)
5096{
5097 afi_t afi;
5098 safi_t safi;
5099 struct bgp_node *rn;
5100 struct bgp_node *rm;
5101 struct bgp_table *table;
5102 struct bgp_static *bgp_static;
5103
05c7a1cc
QY		 5104 FOREACH_AFI_SAFI (afi, safi)
5105 for (rn = bgp_table_top(bgp->route[afi][safi]); rn;
5106 rn = bgp_route_next(rn)) {
67009e22 5107 if (!bgp_node_has_bgp_path_info_data(rn))
05c7a1cc 5108 continue;
ea47320b 5109
05c7a1cc
QY		 5110 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)
5111 || (safi == SAFI_EVPN)) {
67009e22 5112 table = bgp_node_get_bgp_table_info(rn);
05c7a1cc
QY		 5113
5114 for (rm = bgp_table_top(table); rm;
5115 rm = bgp_route_next(rm)) {
a78beeb5 5116 bgp_static =
5a8ba9fc
DS		 5117 bgp_node_get_bgp_static_info(
5118 rm);
05c7a1cc
QY		 5119 bgp_static_update_safi(bgp, &rm->p,
5120 bgp_static, afi,
5121 safi);
d62a17ae 5122 }
05c7a1cc 5123 } else {
5a8ba9fc
DS		 5124 bgp_static_update(
5125 bgp, &rn->p,
5126 bgp_node_get_bgp_static_info(rn), afi,
5127 safi);
ea47320b 5128 }
05c7a1cc 5129 }
6aeb9e78
DS		 5130}
5131
718e3744 5132/* Called from bgp_delete(). Delete all static routes from the BGP
5133 instance. */
d62a17ae 5134void bgp_static_delete(struct bgp *bgp)
5135{
5136 afi_t afi;
5137 safi_t safi;
5138 struct bgp_node *rn;
5139 struct bgp_node *rm;
5140 struct bgp_table *table;
5141 struct bgp_static *bgp_static;
5142
05c7a1cc
QY		 5143 FOREACH_AFI_SAFI (afi, safi)
5144 for (rn = bgp_table_top(bgp->route[afi][safi]); rn;
5145 rn = bgp_route_next(rn)) {
67009e22 5146 if (!bgp_node_has_bgp_path_info_data(rn))
05c7a1cc 5147 continue;
ea47320b 5148
05c7a1cc
QY		 5149 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)
5150 || (safi == SAFI_EVPN)) {
67009e22 5151 table = bgp_node_get_bgp_table_info(rn);
05c7a1cc
QY		 5152
5153 for (rm = bgp_table_top(table); rm;
5154 rm = bgp_route_next(rm)) {
a78beeb5 5155 bgp_static =
5a8ba9fc
DS		 5156 bgp_node_get_bgp_static_info(
5157 rm);
c7d14ba6
PG		 5158 if (!bgp_static)
5159 continue;
5160
05c7a1cc
QY		 5161 bgp_static_withdraw_safi(
5162 bgp, &rm->p, AFI_IP, safi,
5163 (struct prefix_rd *)&rn->p);
ea47320b 5164 bgp_static_free(bgp_static);
5a8ba9fc 5165 bgp_node_set_bgp_static_info(rn, NULL);
ea47320b 5166 bgp_unlock_node(rn);
d62a17ae 5167 }
05c7a1cc 5168 } else {
5a8ba9fc 5169 bgp_static = bgp_node_get_bgp_static_info(rn);
05c7a1cc
QY		 5170 bgp_static_withdraw(bgp, &rn->p, afi, safi);
5171 bgp_static_free(bgp_static);
5a8ba9fc 5172 bgp_node_set_bgp_static_info(rn, NULL);
05c7a1cc 5173 bgp_unlock_node(rn);
ea47320b 5174 }
05c7a1cc 5175 }
d62a17ae 5176}
5177
5178void bgp_static_redo_import_check(struct bgp *bgp)
5179{
5180 afi_t afi;
5181 safi_t safi;
5182 struct bgp_node *rn;
5183 struct bgp_node *rm;
5184 struct bgp_table *table;
5185 struct bgp_static *bgp_static;
5186
5187 /* Use this flag to force reprocessing of the route */
5188 bgp_flag_set(bgp, BGP_FLAG_FORCE_STATIC_PROCESS);
05c7a1cc
QY		 5189 FOREACH_AFI_SAFI (afi, safi) {
5190 for (rn = bgp_table_top(bgp->route[afi][safi]); rn;
5191 rn = bgp_route_next(rn)) {
67009e22 5192 if (!bgp_node_has_bgp_path_info_data(rn))
05c7a1cc 5193 continue;
ea47320b 5194
05c7a1cc
QY		 5195 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)
5196 || (safi == SAFI_EVPN)) {
67009e22 5197 table = bgp_node_get_bgp_table_info(rn);
05c7a1cc
QY		 5198
5199 for (rm = bgp_table_top(table); rm;
5200 rm = bgp_route_next(rm)) {
a78beeb5 5201 bgp_static =
5a8ba9fc
DS		 5202 bgp_node_get_bgp_static_info(
5203 rm);
05c7a1cc
QY		 5204 bgp_static_update_safi(bgp, &rm->p,
5205 bgp_static, afi,
5206 safi);
d62a17ae 5207 }
05c7a1cc 5208 } else {
5a8ba9fc 5209 bgp_static = bgp_node_get_bgp_static_info(rn);
05c7a1cc
QY		 5210 bgp_static_update(bgp, &rn->p, bgp_static, afi,
5211 safi);
ea47320b 5212 }
05c7a1cc
QY		 5213 }
5214 }
d62a17ae 5215 bgp_flag_unset(bgp, BGP_FLAG_FORCE_STATIC_PROCESS);
5216}
5217
5218static void bgp_purge_af_static_redist_routes(struct bgp *bgp, afi_t afi,
5219 safi_t safi)
5220{
5221 struct bgp_table *table;
5222 struct bgp_node *rn;
40381db7 5223 struct bgp_path_info *pi;
d62a17ae 5224
5225 table = bgp->rib[afi][safi];
5226 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
6f94b685 5227 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
40381db7
DS		 5228 if (pi->peer == bgp->peer_self
5229 && ((pi->type == ZEBRA_ROUTE_BGP
5230 && pi->sub_type == BGP_ROUTE_STATIC)
5231 || (pi->type != ZEBRA_ROUTE_BGP
5232 && pi->sub_type
d62a17ae 5233 == BGP_ROUTE_REDISTRIBUTE))) {
40381db7 5234 bgp_aggregate_decrement(bgp, &rn->p, pi, afi,
d62a17ae 5235 safi);
40381db7
DS		 5236 bgp_unlink_nexthop(pi);
5237 bgp_path_info_delete(rn, pi);
d62a17ae 5238 bgp_process(bgp, rn, afi, safi);
5239 }
5240 }
5241 }
ad4cbda1 5242}
5243
5244/*
5245 * Purge all networks and redistributed routes from routing table.
5246 * Invoked upon the instance going down.
5247 */
d62a17ae 5248void bgp_purge_static_redist_routes(struct bgp *bgp)
ad4cbda1 5249{
d62a17ae 5250 afi_t afi;
5251 safi_t safi;
ad4cbda1 5252
05c7a1cc
QY		 5253 FOREACH_AFI_SAFI (afi, safi)
5254 bgp_purge_af_static_redist_routes(bgp, afi, safi);
ad4cbda1 5255}
5256
137446f9
LB		 5257/*
5258 * gpz 110624
5259 * Currently this is used to set static routes for VPN and ENCAP.
5260 * I think it can probably be factored with bgp_static_set.
5261 */
d62a17ae 5262int bgp_static_set_safi(afi_t afi, safi_t safi, struct vty *vty,
5263 const char *ip_str, const char *rd_str,
5264 const char *label_str, const char *rmap_str,
5265 int evpn_type, const char *esi, const char *gwip,
5266 const char *ethtag, const char *routermac)
5267{
5268 VTY_DECLVAR_CONTEXT(bgp, bgp);
5269 int ret;
5270 struct prefix p;
5271 struct prefix_rd prd;
5272 struct bgp_node *prn;
5273 struct bgp_node *rn;
5274 struct bgp_table *table;
5275 struct bgp_static *bgp_static;
5276 mpls_label_t label = MPLS_INVALID_LABEL;
5277 struct prefix gw_ip;
5278
5279 /* validate ip prefix */
5280 ret = str2prefix(ip_str, &p);
5281 if (!ret) {
5282 vty_out(vty, "%% Malformed prefix\n");
5283 return CMD_WARNING_CONFIG_FAILED;
5284 }
5285 apply_mask(&p);
5286 if ((afi == AFI_L2VPN)
5287 && (bgp_build_evpn_prefix(evpn_type,
5288 ethtag != NULL ? atol(ethtag) : 0, &p))) {
5289 vty_out(vty, "%% L2VPN prefix could not be forged\n");
5290 return CMD_WARNING_CONFIG_FAILED;
5291 }
718e3744 5292
d62a17ae 5293 ret = str2prefix_rd(rd_str, &prd);
5294 if (!ret) {
5295 vty_out(vty, "%% Malformed rd\n");
5296 return CMD_WARNING_CONFIG_FAILED;
5297 }
718e3744 5298
d62a17ae 5299 if (label_str) {
5300 unsigned long label_val;
5301 label_val = strtoul(label_str, NULL, 10);
5302 encode_label(label_val, &label);
5303 }
9bedbb1e 5304
d62a17ae 5305 if (safi == SAFI_EVPN) {
5306 if (esi && str2esi(esi, NULL) == 0) {
5307 vty_out(vty, "%% Malformed ESI\n");
5308 return CMD_WARNING_CONFIG_FAILED;
5309 }
5310 if (routermac && prefix_str2mac(routermac, NULL) == 0) {
5311 vty_out(vty, "%% Malformed Router MAC\n");
5312 return CMD_WARNING_CONFIG_FAILED;
5313 }
5314 if (gwip) {
5315 memset(&gw_ip, 0, sizeof(struct prefix));
5316 ret = str2prefix(gwip, &gw_ip);
5317 if (!ret) {
5318 vty_out(vty, "%% Malformed GatewayIp\n");
5319 return CMD_WARNING_CONFIG_FAILED;
5320 }
5321 if ((gw_ip.family == AF_INET
3714a385 5322 && is_evpn_prefix_ipaddr_v6(
d62a17ae 5323 (struct prefix_evpn *)&p))
5324 || (gw_ip.family == AF_INET6
3714a385 5325 && is_evpn_prefix_ipaddr_v4(
d62a17ae 5326 (struct prefix_evpn *)&p))) {
5327 vty_out(vty,
5328 "%% GatewayIp family differs with IP prefix\n");
5329 return CMD_WARNING_CONFIG_FAILED;
5330 }
5331 }
5332 }
5333 prn = bgp_node_get(bgp->route[afi][safi], (struct prefix *)&prd);
67009e22
DS		 5334 if (!bgp_node_has_bgp_path_info_data(prn))
5335 bgp_node_set_bgp_table_info(prn,
5336 bgp_table_init(bgp, afi, safi));
67009e22 5337 table = bgp_node_get_bgp_table_info(prn);
d62a17ae 5338
5339 rn = bgp_node_get(table, &p);
5340
67009e22 5341 if (bgp_node_has_bgp_path_info_data(rn)) {
d62a17ae 5342 vty_out(vty, "%% Same network configuration exists\n");
5343 bgp_unlock_node(rn);
5344 } else {
5345 /* New configuration. */
5346 bgp_static = bgp_static_new();
5347 bgp_static->backdoor = 0;
5348 bgp_static->valid = 0;
5349 bgp_static->igpmetric = 0;
5350 bgp_static->igpnexthop.s_addr = 0;
5351 bgp_static->label = label;
5352 bgp_static->prd = prd;
5353
5354 if (rmap_str) {
0a22ddfb 5355 XFREE(MTYPE_ROUTE_MAP_NAME, bgp_static->rmap.name);
b4897fa5 5356 route_map_counter_decrement(bgp_static->rmap.map);
d62a17ae 5357 bgp_static->rmap.name =
5358 XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap_str);
5359 bgp_static->rmap.map =
5360 route_map_lookup_by_name(rmap_str);
b4897fa5 5361 route_map_counter_increment(bgp_static->rmap.map);
d62a17ae 5362 }
718e3744 5363
d62a17ae 5364 if (safi == SAFI_EVPN) {
5365 if (esi) {
5366 bgp_static->eth_s_id =
5367 XCALLOC(MTYPE_ATTR,
5368 sizeof(struct eth_segment_id));
5369 str2esi(esi, bgp_static->eth_s_id);
5370 }
5371 if (routermac) {
5372 bgp_static->router_mac =
28328ea9 5373 XCALLOC(MTYPE_ATTR, ETH_ALEN + 1);
56cb79b6
A		 5374 (void)prefix_str2mac(routermac,
5375 bgp_static->router_mac);
d62a17ae 5376 }
5377 if (gwip)
5378 prefix_copy(&bgp_static->gatewayIp, &gw_ip);
5379 }
5a8ba9fc 5380 bgp_node_set_bgp_static_info(rn, bgp_static);
718e3744 5381
d62a17ae 5382 bgp_static->valid = 1;
5383 bgp_static_update_safi(bgp, &p, bgp_static, afi, safi);
5384 }
718e3744 5385
d62a17ae 5386 return CMD_SUCCESS;
718e3744 5387}
5388
5389/* Configure static BGP network. */
d62a17ae 5390int bgp_static_unset_safi(afi_t afi, safi_t safi, struct vty *vty,
5391 const char *ip_str, const char *rd_str,
5392 const char *label_str, int evpn_type, const char *esi,
5393 const char *gwip, const char *ethtag)
5394{
5395 VTY_DECLVAR_CONTEXT(bgp, bgp);
5396 int ret;
5397 struct prefix p;
5398 struct prefix_rd prd;
5399 struct bgp_node *prn;
5400 struct bgp_node *rn;
5401 struct bgp_table *table;
5402 struct bgp_static *bgp_static;
5403 mpls_label_t label = MPLS_INVALID_LABEL;
5404
5405 /* Convert IP prefix string to struct prefix. */
5406 ret = str2prefix(ip_str, &p);
5407 if (!ret) {
5408 vty_out(vty, "%% Malformed prefix\n");
5409 return CMD_WARNING_CONFIG_FAILED;
5410 }
5411 apply_mask(&p);
5412 if ((afi == AFI_L2VPN)
5413 && (bgp_build_evpn_prefix(evpn_type,
5414 ethtag != NULL ? atol(ethtag) : 0, &p))) {
5415 vty_out(vty, "%% L2VPN prefix could not be forged\n");
5416 return CMD_WARNING_CONFIG_FAILED;
5417 }
5418 ret = str2prefix_rd(rd_str, &prd);
5419 if (!ret) {
5420 vty_out(vty, "%% Malformed rd\n");
5421 return CMD_WARNING_CONFIG_FAILED;
5422 }
718e3744 5423
d62a17ae 5424 if (label_str) {
5425 unsigned long label_val;
5426 label_val = strtoul(label_str, NULL, 10);
5427 encode_label(label_val, &label);
5428 }
718e3744 5429
d62a17ae 5430 prn = bgp_node_get(bgp->route[afi][safi], (struct prefix *)&prd);
67009e22
DS		 5431 if (!bgp_node_has_bgp_path_info_data(prn))
5432 bgp_node_set_bgp_table_info(prn,
5433 bgp_table_init(bgp, afi, safi));
d62a17ae 5434 else
5435 bgp_unlock_node(prn);
67009e22 5436 table = bgp_node_get_bgp_table_info(prn);
718e3744 5437
d62a17ae 5438 rn = bgp_node_lookup(table, &p);
6b0655a2 5439
d62a17ae 5440 if (rn) {
5441 bgp_static_withdraw_safi(bgp, &p, afi, safi, &prd);
73ac8160 5442
5a8ba9fc 5443 bgp_static = bgp_node_get_bgp_static_info(rn);
d62a17ae 5444 bgp_static_free(bgp_static);
5a8ba9fc 5445 bgp_node_set_bgp_static_info(rn, NULL);
d62a17ae 5446 bgp_unlock_node(rn);
5447 bgp_unlock_node(rn);
5448 } else
5449 vty_out(vty, "%% Can't find the route\n");
5450
5451 return CMD_SUCCESS;
5452}
5453
5454static int bgp_table_map_set(struct vty *vty, afi_t afi, safi_t safi,
5455 const char *rmap_name)
5456{
5457 VTY_DECLVAR_CONTEXT(bgp, bgp);
5458 struct bgp_rmap *rmap;
5459
5460 rmap = &bgp->table_map[afi][safi];
5461 if (rmap_name) {
0a22ddfb 5462 XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name);
b4897fa5 5463 route_map_counter_decrement(rmap->map);
d62a17ae 5464 rmap->name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap_name);
5465 rmap->map = route_map_lookup_by_name(rmap_name);
b4897fa5 5466 route_map_counter_increment(rmap->map);
d62a17ae 5467 } else {
0a22ddfb 5468 XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name);
b4897fa5 5469 route_map_counter_decrement(rmap->map);
d62a17ae 5470 rmap->name = NULL;
5471 rmap->map = NULL;
5472 }
73ac8160 5473
d62a17ae 5474 if (bgp_fibupd_safi(safi))
5475 bgp_zebra_announce_table(bgp, afi, safi);
73ac8160 5476
d62a17ae 5477 return CMD_SUCCESS;
73ac8160
DS		 5478}
5479
d62a17ae 5480static int bgp_table_map_unset(struct vty *vty, afi_t afi, safi_t safi,
5481 const char *rmap_name)
73ac8160 5482{
d62a17ae 5483 VTY_DECLVAR_CONTEXT(bgp, bgp);
5484 struct bgp_rmap *rmap;
73ac8160 5485
d62a17ae 5486 rmap = &bgp->table_map[afi][safi];
0a22ddfb 5487 XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name);
b4897fa5 5488 route_map_counter_decrement(rmap->map);
d62a17ae 5489 rmap->name = NULL;
5490 rmap->map = NULL;
73ac8160 5491
d62a17ae 5492 if (bgp_fibupd_safi(safi))
5493 bgp_zebra_announce_table(bgp, afi, safi);
73ac8160 5494
d62a17ae 5495 return CMD_SUCCESS;
73ac8160
DS		 5496}
5497
2b791107 5498void bgp_config_write_table_map(struct vty *vty, struct bgp *bgp, afi_t afi,
60466a63 5499 safi_t safi)
73ac8160 5500{
d62a17ae 5501 if (bgp->table_map[afi][safi].name) {
d62a17ae 5502 vty_out(vty, " table-map %s\n",
5503 bgp->table_map[afi][safi].name);
5504 }
73ac8160
DS		 5505}
5506
73ac8160
DS		 5507DEFUN (bgp_table_map,
5508 bgp_table_map_cmd,
5509 "table-map WORD",
5510 "BGP table to RIB route download filter\n"
5511 "Name of the route map\n")
5512{
d62a17ae 5513 int idx_word = 1;
5514 return bgp_table_map_set(vty, bgp_node_afi(vty), bgp_node_safi(vty),
5515 argv[idx_word]->arg);
73ac8160
DS		 5516}
5517DEFUN (no_bgp_table_map,
5518 no_bgp_table_map_cmd,
5519 "no table-map WORD",
3a2d747c 5520 NO_STR
73ac8160
DS		 5521 "BGP table to RIB route download filter\n"
5522 "Name of the route map\n")
5523{
d62a17ae 5524 int idx_word = 2;
5525 return bgp_table_map_unset(vty, bgp_node_afi(vty), bgp_node_safi(vty),
5526 argv[idx_word]->arg);
73ac8160
DS		 5527}
5528
e2a86ad9
DS		 5529DEFPY(bgp_network,
5530 bgp_network_cmd,
5531 "[no] network \
5532 <A.B.C.D/M$prefix|A.B.C.D$address [mask A.B.C.D$netmask]> \
5533 [{route-map WORD$map_name|label-index (0-1048560)$label_index| \
5534 backdoor$backdoor}]",
5535 NO_STR
5536 "Specify a network to announce via BGP\n"
5537 "IPv4 prefix\n"
5538 "Network number\n"
5539 "Network mask\n"
5540 "Network mask\n"
5541 "Route-map to modify the attributes\n"
5542 "Name of the route map\n"
5543 "Label index to associate with the prefix\n"
5544 "Label index value\n"
5545 "Specify a BGP backdoor route\n")
5546{
5547 char addr_prefix_str[BUFSIZ];
5548
5549 if (address_str) {
5550 int ret;
718e3744 5551
e2a86ad9
DS		 5552 ret = netmask_str2prefix_str(address_str, netmask_str,
5553 addr_prefix_str);
5554 if (!ret) {
5555 vty_out(vty, "%% Inconsistent address and mask\n");
5556 return CMD_WARNING_CONFIG_FAILED;
5557 }
d62a17ae 5558 }
718e3744 5559
a4d82a8a
PZ		 5560 return bgp_static_set(
5561 vty, no, address_str ? addr_prefix_str : prefix_str, AFI_IP,
5562 bgp_node_safi(vty), map_name, backdoor ? 1 : 0,
5563 label_index ? (uint32_t)label_index : BGP_INVALID_LABEL_INDEX);
718e3744 5564}
5565
e2a86ad9
DS		 5566DEFPY(ipv6_bgp_network,
5567 ipv6_bgp_network_cmd,
5568 "[no] network X:X::X:X/M$prefix \
5569 [{route-map WORD$map_name|label-index (0-1048560)$label_index}]",
5570 NO_STR
5571 "Specify a network to announce via BGP\n"
5572 "IPv6 prefix\n"
5573 "Route-map to modify the attributes\n"
5574 "Name of the route map\n"
5575 "Label index to associate with the prefix\n"
5576 "Label index value\n")
718e3744 5577{
a4d82a8a
PZ		 5578 return bgp_static_set(
5579 vty, no, prefix_str, AFI_IP6, bgp_node_safi(vty), map_name, 0,
5580 label_index ? (uint32_t)label_index : BGP_INVALID_LABEL_INDEX);
1b6d5c7e
VV		 5581}
5582
d62a17ae 5583static struct bgp_aggregate *bgp_aggregate_new(void)
718e3744 5584{
d62a17ae 5585 return XCALLOC(MTYPE_BGP_AGGREGATE, sizeof(struct bgp_aggregate));
718e3744 5586}
5587
d62a17ae 5588static void bgp_aggregate_free(struct bgp_aggregate *aggregate)
718e3744 5589{
d62a17ae 5590 XFREE(MTYPE_BGP_AGGREGATE, aggregate);
5591}
718e3744 5592
40381db7 5593static int bgp_aggregate_info_same(struct bgp_path_info *pi, uint8_t origin,
29f7d023 5594 struct aspath *aspath,
3da2cc32 5595 struct community *comm,
dd18c5a9
DS		 5596 struct ecommunity *ecomm,
5597 struct lcommunity *lcomm)
eaaf8adb
DS		 5598{
5599 static struct aspath *ae = NULL;
5600
5601 if (!ae)
5602 ae = aspath_empty();
5603
40381db7 5604 if (!pi)
eaaf8adb
DS		 5605 return 0;
5606
40381db7 5607 if (origin != pi->attr->origin)
eaaf8adb
DS		 5608 return 0;
5609
40381db7 5610 if (!aspath_cmp(pi->attr->aspath, (aspath) ? aspath : ae))
29f7d023
DS		 5611 return 0;
5612
40381db7 5613 if (!community_cmp(pi->attr->community, comm))
eaaf8adb
DS		 5614 return 0;
5615
3da2cc32 5616 if (!ecommunity_cmp(pi->attr->ecommunity, ecomm))
eaaf8adb
DS		 5617 return 0;
5618
dd18c5a9
DS		 5619 if (!lcommunity_cmp(pi->attr->lcommunity, lcomm))
5620 return 0;
5621
40381db7 5622 if (!CHECK_FLAG(pi->flags, BGP_PATH_VALID))
7ce8a8e0
DS		 5623 return 0;
5624
eaaf8adb
DS		 5625 return 1;
5626}
5627
c701010e
DS		 5628static void bgp_aggregate_install(struct bgp *bgp, afi_t afi, safi_t safi,
5629 struct prefix *p, uint8_t origin,
5630 struct aspath *aspath,
5631 struct community *community,
3da2cc32 5632 struct ecommunity *ecommunity,
dd18c5a9 5633 struct lcommunity *lcommunity,
c701010e
DS		 5634 uint8_t atomic_aggregate,
5635 struct bgp_aggregate *aggregate)
5636{
5637 struct bgp_node *rn;
5638 struct bgp_table *table;
6f94b685 5639 struct bgp_path_info *pi, *orig, *new;
c701010e
DS		 5640
5641 table = bgp->rib[afi][safi];
5642
5643 rn = bgp_node_get(table, p);
eaaf8adb 5644
6f94b685 5645 for (orig = pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7
DS		 5646 if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP
5647 && pi->sub_type == BGP_ROUTE_AGGREGATE)
eaaf8adb
DS		 5648 break;
5649
c701010e 5650 if (aggregate->count > 0) {
eaaf8adb
DS		 5651 /*
5652 * If the aggregate information has not changed
5653 * no need to re-install it again.
5654 */
6f94b685 5655 if (bgp_aggregate_info_same(orig, origin, aspath, community,
dd18c5a9 5656 ecommunity, lcommunity)) {
eaaf8adb
DS		 5657 bgp_unlock_node(rn);
5658
5659 if (aspath)
5660 aspath_free(aspath);
5661 if (community)
3c1f53de 5662 community_free(&community);
3da2cc32
DS		 5663 if (ecommunity)
5664 ecommunity_free(&ecommunity);
dd18c5a9
DS		 5665 if (lcommunity)
5666 lcommunity_free(&lcommunity);
eaaf8adb
DS		 5667
5668 return;
5669 }
5670
5671 /*
5672 * Mark the old as unusable
5673 */
40381db7
DS		 5674 if (pi)
5675 bgp_path_info_delete(rn, pi);
eaaf8adb 5676
3da2cc32
DS		 5677 new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_AGGREGATE, 0,
5678 bgp->peer_self,
5679 bgp_attr_aggregate_intern(bgp, origin, aspath,
5680 community, ecommunity,
dd18c5a9 5681 lcommunity,
3da2cc32
DS		 5682 aggregate->as_set,
5683 atomic_aggregate),
5684 rn);
1defdda8 5685 SET_FLAG(new->flags, BGP_PATH_VALID);
c701010e 5686
18ee8310 5687 bgp_path_info_add(rn, new);
c701010e
DS		 5688 bgp_process(bgp, rn, afi, safi);
5689 } else {
6f94b685 5690 for (pi = orig; pi; pi = pi->next)
40381db7
DS		 5691 if (pi->peer == bgp->peer_self
5692 && pi->type == ZEBRA_ROUTE_BGP
5693 && pi->sub_type == BGP_ROUTE_AGGREGATE)
c701010e
DS		 5694 break;
5695
5696 /* Withdraw static BGP route from routing table. */
40381db7
DS		 5697 if (pi) {
5698 bgp_path_info_delete(rn, pi);
c701010e
DS		 5699 bgp_process(bgp, rn, afi, safi);
5700 }
5701 }
5702
5703 bgp_unlock_node(rn);
5704}
5705
b5d58c32 5706/* Update an aggregate as routes are added/removed from the BGP table */
d62a17ae 5707static void bgp_aggregate_route(struct bgp *bgp, struct prefix *p,
fc968841 5708 afi_t afi, safi_t safi,
d62a17ae 5709 struct bgp_aggregate *aggregate)
5710{
5711 struct bgp_table *table;
5712 struct bgp_node *top;
5713 struct bgp_node *rn;
d7c0a89a 5714 uint8_t origin;
d62a17ae 5715 struct aspath *aspath = NULL;
d62a17ae 5716 struct community *community = NULL;
3da2cc32 5717 struct ecommunity *ecommunity = NULL;
dd18c5a9 5718 struct lcommunity *lcommunity = NULL;
40381db7 5719 struct bgp_path_info *pi;
d62a17ae 5720 unsigned long match = 0;
d7c0a89a 5721 uint8_t atomic_aggregate = 0;
d62a17ae 5722
d62a17ae 5723 /* ORIGIN attribute: If at least one route among routes that are
5724 aggregated has ORIGIN with the value INCOMPLETE, then the
5725 aggregated route must have the ORIGIN attribute with the value
5726 INCOMPLETE. Otherwise, if at least one route among routes that
5727 are aggregated has ORIGIN with the value EGP, then the aggregated
5728 route must have the origin attribute with the value EGP. In all
5729 other case the value of the ORIGIN attribute of the aggregated
5730 route is INTERNAL. */
5731 origin = BGP_ORIGIN_IGP;
718e3744 5732
d62a17ae 5733 table = bgp->rib[afi][safi];
718e3744 5734
d62a17ae 5735 top = bgp_node_get(table, p);
5736 for (rn = bgp_node_get(table, p); rn;
c2ff8b3e
DS		 5737 rn = bgp_route_next_until(rn, top)) {
5738 if (rn->p.prefixlen <= p->prefixlen)
5739 continue;
d62a17ae 5740
c2ff8b3e 5741 match = 0;
d62a17ae 5742
6f94b685 5743 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
40381db7 5744 if (BGP_PATH_HOLDDOWN(pi))
c2ff8b3e 5745 continue;
718e3744 5746
40381db7 5747 if (pi->attr->flag
c2ff8b3e
DS		 5748 & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE))
5749 atomic_aggregate = 1;
d62a17ae 5750
40381db7 5751 if (pi->sub_type == BGP_ROUTE_AGGREGATE)
c2ff8b3e 5752 continue;
d62a17ae 5753
f273fef1
DS		 5754 /*
5755 * summary-only aggregate route suppress
5756 * aggregated route announcements.
5757 */
c2ff8b3e 5758 if (aggregate->summary_only) {
40381db7
DS		 5759 (bgp_path_info_extra_get(pi))->suppress++;
5760 bgp_path_info_set_flag(rn, pi,
18ee8310 5761 BGP_PATH_ATTR_CHANGED);
c2ff8b3e 5762 match++;
d62a17ae 5763 }
c2ff8b3e
DS		 5764
5765 aggregate->count++;
5766
f273fef1
DS		 5767 /*
5768 * If at least one route among routes that are
5769 * aggregated has ORIGIN with the value INCOMPLETE,
5770 * then the aggregated route MUST have the ORIGIN
5771 * attribute with the value INCOMPLETE. Otherwise, if
5772 * at least one route among routes that are aggregated
5773 * has ORIGIN with the value EGP, then the aggregated
5774 * route MUST have the ORIGIN attribute with the value
5775 * EGP.
5776 */
fc968841
NT		 5777 switch (pi->attr->origin) {
5778 case BGP_ORIGIN_INCOMPLETE:
5779 aggregate->incomplete_origin_count++;
5780 break;
5781 case BGP_ORIGIN_EGP:
5782 aggregate->egp_origin_count++;
5783 break;
5784 default:
5785 /*Do nothing.
5786 */
5787 break;
5788 }
c2ff8b3e
DS		 5789
5790 if (!aggregate->as_set)
5791 continue;
5792
f273fef1
DS		 5793 /*
5794 * as-set aggregate route generate origin, as path,
5795 * and community aggregation.
5796 */
fc968841
NT		 5797 /* Compute aggregate route's as-path.
5798 */
5799 bgp_compute_aggregate_aspath(aggregate,
5800 pi->attr->aspath);
c2ff8b3e 5801
fc968841
NT		 5802 /* Compute aggregate route's community.
5803 */
5804 if (pi->attr->community)
5805 bgp_compute_aggregate_community(
5806 aggregate,
5807 pi->attr->community);
dd18c5a9 5808
fc968841
NT		 5809 /* Compute aggregate route's extended community.
5810 */
5811 if (pi->attr->ecommunity)
5812 bgp_compute_aggregate_ecommunity(
5813 aggregate,
5814 pi->attr->ecommunity);
5815
5816 /* Compute aggregate route's large community.
5817 */
5818 if (pi->attr->lcommunity)
5819 bgp_compute_aggregate_lcommunity(
5820 aggregate,
5821 pi->attr->lcommunity);
d62a17ae 5822 }
c2ff8b3e
DS		 5823 if (match)
5824 bgp_process(bgp, rn, afi, safi);
5825 }
d62a17ae 5826 bgp_unlock_node(top);
718e3744 5827
718e3744 5828
fc968841
NT		 5829 if (aggregate->incomplete_origin_count > 0)
5830 origin = BGP_ORIGIN_INCOMPLETE;
5831 else if (aggregate->egp_origin_count > 0)
5832 origin = BGP_ORIGIN_EGP;
d62a17ae 5833
fc968841
NT		 5834 if (aggregate->as_set) {
5835 if (aggregate->aspath)
5836 /* Retrieve aggregate route's as-path.
5837 */
5838 aspath = aspath_dup(aggregate->aspath);
d62a17ae 5839
fc968841
NT		 5840 if (aggregate->community)
5841 /* Retrieve aggregate route's community.
5842 */
5843 community = community_dup(aggregate->community);
3da2cc32 5844
fc968841
NT		 5845 if (aggregate->ecommunity)
5846 /* Retrieve aggregate route's ecommunity.
5847 */
5848 ecommunity = ecommunity_dup(aggregate->ecommunity);
dd18c5a9 5849
fc968841
NT		 5850 if (aggregate->lcommunity)
5851 /* Retrieve aggregate route's lcommunity.
5852 */
5853 lcommunity = lcommunity_dup(aggregate->lcommunity);
718e3744 5854 }
718e3744 5855
c701010e 5856 bgp_aggregate_install(bgp, afi, safi, p, origin, aspath, community,
dd18c5a9
DS		 5857 ecommunity, lcommunity, atomic_aggregate,
5858 aggregate);
718e3744 5859}
5860
3b7db173
DS		 5861static void bgp_aggregate_delete(struct bgp *bgp, struct prefix *p, afi_t afi,
5862 safi_t safi, struct bgp_aggregate *aggregate)
5863{
5864 struct bgp_table *table;
5865 struct bgp_node *top;
5866 struct bgp_node *rn;
40381db7 5867 struct bgp_path_info *pi;
3b7db173
DS		 5868 unsigned long match;
5869
5870 table = bgp->rib[afi][safi];
5871
5872 /* If routes exists below this node, generate aggregate routes. */
5873 top = bgp_node_get(table, p);
5874 for (rn = bgp_node_get(table, p); rn;
5875 rn = bgp_route_next_until(rn, top)) {
5876 if (rn->p.prefixlen <= p->prefixlen)
5877 continue;
5878 match = 0;
5879
6f94b685 5880 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
40381db7 5881 if (BGP_PATH_HOLDDOWN(pi))
3b7db173
DS		 5882 continue;
5883
40381db7 5884 if (pi->sub_type == BGP_ROUTE_AGGREGATE)
3b7db173
DS		 5885 continue;
5886
40381db7
DS		 5887 if (aggregate->summary_only && pi->extra) {
5888 pi->extra->suppress--;
3b7db173 5889
40381db7 5890 if (pi->extra->suppress == 0) {
18ee8310 5891 bgp_path_info_set_flag(
40381db7 5892 rn, pi, BGP_PATH_ATTR_CHANGED);
3b7db173
DS		 5893 match++;
5894 }
5895 }
5896 aggregate->count--;
fc968841
NT		 5897
5898 if (pi->attr->origin == BGP_ORIGIN_INCOMPLETE)
5899 aggregate->incomplete_origin_count--;
5900 else if (pi->attr->origin == BGP_ORIGIN_EGP)
5901 aggregate->egp_origin_count--;
5902
5903 if (aggregate->as_set) {
5904 /* Remove as-path from aggregate.
5905 */
5906 bgp_remove_aspath_from_aggregate(
5907 aggregate,
5908 pi->attr->aspath);
5909
5910 if (pi->attr->community)
5911 /* Remove community from aggregate.
5912 */
5913 bgp_remove_community_from_aggregate(
5914 aggregate,
5915 pi->attr->community);
5916
5917 if (pi->attr->ecommunity)
5918 /* Remove ecommunity from aggregate.
5919 */
5920 bgp_remove_ecommunity_from_aggregate(
5921 aggregate,
5922 pi->attr->ecommunity);
5923
5924 if (pi->attr->lcommunity)
5925 /* Remove lcommunity from aggregate.
5926 */
5927 bgp_remove_lcommunity_from_aggregate(
5928 aggregate,
5929 pi->attr->lcommunity);
5930 }
5931
3b7db173
DS		 5932 }
5933
5934 /* If this node was suppressed, process the change. */
5935 if (match)
5936 bgp_process(bgp, rn, afi, safi);
5937 }
5938 bgp_unlock_node(top);
5939}
718e3744 5940
fc968841
NT		 5941static void bgp_add_route_to_aggregate(struct bgp *bgp, struct prefix *aggr_p,
5942 struct bgp_path_info *pinew, afi_t afi,
5943 safi_t safi,
5944 struct bgp_aggregate *aggregate)
5945{
5946 uint8_t origin;
5947 struct aspath *aspath = NULL;
5948 uint8_t atomic_aggregate = 0;
5949 struct community *community = NULL;
5950 struct ecommunity *ecommunity = NULL;
5951 struct lcommunity *lcommunity = NULL;
5952
5953 /* ORIGIN attribute: If at least one route among routes that are
5954 * aggregated has ORIGIN with the value INCOMPLETE, then the
5955 * aggregated route must have the ORIGIN attribute with the value
5956 * INCOMPLETE. Otherwise, if at least one route among routes that
5957 * are aggregated has ORIGIN with the value EGP, then the aggregated
5958 * route must have the origin attribute with the value EGP. In all
5959 * other case the value of the ORIGIN attribute of the aggregated
5960 * route is INTERNAL.
5961 */
5962 origin = BGP_ORIGIN_IGP;
5963
5964 aggregate->count++;
5965
5966 if (aggregate->summary_only)
5967 (bgp_path_info_extra_get(pinew))->suppress++;
5968
5969 switch (pinew->attr->origin) {
5970 case BGP_ORIGIN_INCOMPLETE:
5971 aggregate->incomplete_origin_count++;
5972 break;
5973 case BGP_ORIGIN_EGP:
5974 aggregate->egp_origin_count++;
5975 break;
5976 default:
5977 /* Do nothing.
5978 */
5979 break;
5980 }
5981
5982 if (aggregate->incomplete_origin_count > 0)
5983 origin = BGP_ORIGIN_INCOMPLETE;
5984 else if (aggregate->egp_origin_count > 0)
5985 origin = BGP_ORIGIN_EGP;
5986
5987 if (aggregate->as_set) {
5988 /* Compute aggregate route's as-path.
5989 */
5990 bgp_compute_aggregate_aspath(aggregate,
5991 pinew->attr->aspath);
5992
5993 /* Compute aggregate route's community.
5994 */
5995 if (pinew->attr->community)
5996 bgp_compute_aggregate_community(
5997 aggregate,
5998 pinew->attr->community);
5999
6000 /* Compute aggregate route's extended community.
6001 */
6002 if (pinew->attr->ecommunity)
6003 bgp_compute_aggregate_ecommunity(
6004 aggregate,
6005 pinew->attr->ecommunity);
6006
6007 /* Compute aggregate route's large community.
6008 */
6009 if (pinew->attr->lcommunity)
6010 bgp_compute_aggregate_lcommunity(
6011 aggregate,
6012 pinew->attr->lcommunity);
6013
6014 /* Retrieve aggregate route's as-path.
6015 */
6016 if (aggregate->aspath)
6017 aspath = aspath_dup(aggregate->aspath);
6018
6019 /* Retrieve aggregate route's community.
6020 */
6021 if (aggregate->community)
6022 community = community_dup(aggregate->community);
6023
6024 /* Retrieve aggregate route's ecommunity.
6025 */
6026 if (aggregate->ecommunity)
6027 ecommunity = ecommunity_dup(aggregate->ecommunity);
6028
6029 /* Retrieve aggregate route's lcommunity.
6030 */
6031 if (aggregate->lcommunity)
6032 lcommunity = lcommunity_dup(aggregate->lcommunity);
6033 }
6034
6035 bgp_aggregate_install(bgp, afi, safi, aggr_p, origin,
6036 aspath, community, ecommunity,
6037 lcommunity, atomic_aggregate, aggregate);
6038}
6039
6040static void bgp_remove_route_from_aggregate(struct bgp *bgp, afi_t afi,
6041 safi_t safi,
6042 struct bgp_path_info *pi,
6043 struct bgp_aggregate *aggregate,
6044 struct prefix *aggr_p)
6045{
6046 uint8_t origin;
6047 struct aspath *aspath = NULL;
6048 uint8_t atomic_aggregate = 0;
6049 struct community *community = NULL;
6050 struct ecommunity *ecommunity = NULL;
6051 struct lcommunity *lcommunity = NULL;
6052 unsigned long match = 0;
6053
6054 if (BGP_PATH_HOLDDOWN(pi))
6055 return;
6056
6057 if (pi->sub_type == BGP_ROUTE_AGGREGATE)
6058 return;
6059
6060 if (aggregate->summary_only
6061 && pi->extra
6062 && pi->extra->suppress > 0) {
6063 pi->extra->suppress--;
6064
6065 if (pi->extra->suppress == 0) {
6066 bgp_path_info_set_flag(pi->net, pi,
6067 BGP_PATH_ATTR_CHANGED);
6068 match++;
6069 }
6070 }
6071
6072 if (aggregate->count > 0)
6073 aggregate->count--;
6074
6075 if (pi->attr->origin == BGP_ORIGIN_INCOMPLETE)
6076 aggregate->incomplete_origin_count--;
6077 else if (pi->attr->origin == BGP_ORIGIN_EGP)
6078 aggregate->egp_origin_count--;
6079
6080 if (aggregate->as_set) {
6081 /* Remove as-path from aggregate.
6082 */
6083 bgp_remove_aspath_from_aggregate(aggregate,
6084 pi->attr->aspath);
6085
6086 if (pi->attr->community)
6087 /* Remove community from aggregate.
6088 */
6089 bgp_remove_community_from_aggregate(
6090 aggregate,
6091 pi->attr->community);
6092
6093 if (pi->attr->ecommunity)
6094 /* Remove ecommunity from aggregate.
6095 */
6096 bgp_remove_ecommunity_from_aggregate(
6097 aggregate,
6098 pi->attr->ecommunity);
6099
6100 if (pi->attr->lcommunity)
6101 /* Remove lcommunity from aggregate.
6102 */
6103 bgp_remove_lcommunity_from_aggregate(
6104 aggregate,
6105 pi->attr->lcommunity);
6106 }
6107
6108 /* If this node was suppressed, process the change. */
6109 if (match)
6110 bgp_process(bgp, pi->net, afi, safi);
6111
6112 origin = BGP_ORIGIN_IGP;
6113 if (aggregate->incomplete_origin_count > 0)
6114 origin = BGP_ORIGIN_INCOMPLETE;
6115 else if (aggregate->egp_origin_count > 0)
6116 origin = BGP_ORIGIN_EGP;
6117
6118 if (aggregate->as_set) {
6119 /* Retrieve aggregate route's as-path.
6120 */
6121 if (aggregate->aspath)
6122 aspath = aspath_dup(aggregate->aspath);
6123
6124 /* Retrieve aggregate route's community.
6125 */
6126 if (aggregate->community)
6127 community = community_dup(aggregate->community);
6128
6129 /* Retrieve aggregate route's ecommunity.
6130 */
6131 if (aggregate->ecommunity)
6132 ecommunity = ecommunity_dup(aggregate->ecommunity);
6133
6134 /* Retrieve aggregate route's lcommunity.
6135 */
6136 if (aggregate->lcommunity)
6137 lcommunity = lcommunity_dup(aggregate->lcommunity);
6138 }
6139
6140 bgp_aggregate_install(bgp, afi, safi, aggr_p, origin,
6141 aspath, community, ecommunity,
6142 lcommunity, atomic_aggregate, aggregate);
6143}
6144
d62a17ae 6145void bgp_aggregate_increment(struct bgp *bgp, struct prefix *p,
40381db7 6146 struct bgp_path_info *pi, afi_t afi, safi_t safi)
718e3744 6147{
d62a17ae 6148 struct bgp_node *child;
6149 struct bgp_node *rn;
6150 struct bgp_aggregate *aggregate;
6151 struct bgp_table *table;
718e3744 6152
d62a17ae 6153 table = bgp->aggregate[afi][safi];
f018db83 6154
d62a17ae 6155 /* No aggregates configured. */
6156 if (bgp_table_top_nolock(table) == NULL)
6157 return;
f018db83 6158
d62a17ae 6159 if (p->prefixlen == 0)
6160 return;
718e3744 6161
40381db7 6162 if (BGP_PATH_HOLDDOWN(pi))
d62a17ae 6163 return;
718e3744 6164
d62a17ae 6165 child = bgp_node_get(table, p);
718e3744 6166
d62a17ae 6167 /* Aggregate address configuration check. */
b1e62edd 6168 for (rn = child; rn; rn = bgp_node_parent_nolock(rn)) {
b613a918 6169 aggregate = bgp_node_get_bgp_aggregate_info(rn);
b1e62edd 6170 if (aggregate != NULL && rn->p.prefixlen < p->prefixlen) {
fc968841
NT		 6171 bgp_add_route_to_aggregate(bgp, &rn->p, pi, afi,
6172 safi, aggregate);
d62a17ae 6173 }
b1e62edd 6174 }
d62a17ae 6175 bgp_unlock_node(child);
718e3744 6176}
6177
d62a17ae 6178void bgp_aggregate_decrement(struct bgp *bgp, struct prefix *p,
4b7e6066 6179 struct bgp_path_info *del, afi_t afi, safi_t safi)
718e3744 6180{
d62a17ae 6181 struct bgp_node *child;
6182 struct bgp_node *rn;
6183 struct bgp_aggregate *aggregate;
6184 struct bgp_table *table;
718e3744 6185
d62a17ae 6186 table = bgp->aggregate[afi][safi];
718e3744 6187
d62a17ae 6188 /* No aggregates configured. */
6189 if (bgp_table_top_nolock(table) == NULL)
6190 return;
718e3744 6191
d62a17ae 6192 if (p->prefixlen == 0)
6193 return;
718e3744 6194
d62a17ae 6195 child = bgp_node_get(table, p);
718e3744 6196
d62a17ae 6197 /* Aggregate address configuration check. */
b1e62edd 6198 for (rn = child; rn; rn = bgp_node_parent_nolock(rn)) {
b613a918 6199 aggregate = bgp_node_get_bgp_aggregate_info(rn);
b1e62edd 6200 if (aggregate != NULL && rn->p.prefixlen < p->prefixlen) {
fc968841
NT		 6201 bgp_remove_route_from_aggregate(bgp, afi, safi,
6202 del, aggregate, &rn->p);
d62a17ae 6203 }
b1e62edd 6204 }
d62a17ae 6205 bgp_unlock_node(child);
6206}
718e3744 6207
718e3744 6208/* Aggregate route attribute. */
6209#define AGGREGATE_SUMMARY_ONLY 1
6210#define AGGREGATE_AS_SET 1
6211
d62a17ae 6212static int bgp_aggregate_unset(struct vty *vty, const char *prefix_str,
6213 afi_t afi, safi_t safi)
718e3744 6214{
d62a17ae 6215 VTY_DECLVAR_CONTEXT(bgp, bgp);
6216 int ret;
6217 struct prefix p;
6218 struct bgp_node *rn;
6219 struct bgp_aggregate *aggregate;
718e3744 6220
d62a17ae 6221 /* Convert string to prefix structure. */
6222 ret = str2prefix(prefix_str, &p);
6223 if (!ret) {
6224 vty_out(vty, "Malformed prefix\n");
6225 return CMD_WARNING_CONFIG_FAILED;
6226 }
6227 apply_mask(&p);
6228
6229 /* Old configuration check. */
6230 rn = bgp_node_lookup(bgp->aggregate[afi][safi], &p);
6231 if (!rn) {
6232 vty_out(vty,
6233 "%% There is no aggregate-address configuration.\n");
6234 return CMD_WARNING_CONFIG_FAILED;
6235 }
f6269b4f 6236
b613a918 6237 aggregate = bgp_node_get_bgp_aggregate_info(rn);
09990cdd 6238 bgp_aggregate_delete(bgp, &p, afi, safi, aggregate);
dd18c5a9
DS		 6239 bgp_aggregate_install(bgp, afi, safi, &p, 0, NULL, NULL,
6240 NULL, NULL, 0, aggregate);
d62a17ae 6241
6242 /* Unlock aggregate address configuration. */
b613a918 6243 bgp_node_set_bgp_aggregate_info(rn, NULL);
fc968841
NT		 6244
6245 if (aggregate->community)
6246 community_free(&aggregate->community);
6247
6248 if (aggregate->community_hash) {
6249 /* Delete all communities in the hash.
6250 */
6251 hash_clean(aggregate->community_hash,
6252 bgp_aggr_community_remove);
6253 /* Free up the community_hash.
6254 */
6255 hash_free(aggregate->community_hash);
6256 }
6257
6258 if (aggregate->ecommunity)
6259 ecommunity_free(&aggregate->ecommunity);
6260
6261 if (aggregate->ecommunity_hash) {
6262 /* Delete all ecommunities in the hash.
6263 */
6264 hash_clean(aggregate->ecommunity_hash,
6265 bgp_aggr_ecommunity_remove);
6266 /* Free up the ecommunity_hash.
6267 */
6268 hash_free(aggregate->ecommunity_hash);
6269 }
6270
6271 if (aggregate->lcommunity)
6272 lcommunity_free(&aggregate->lcommunity);
6273
6274 if (aggregate->lcommunity_hash) {
6275 /* Delete all lcommunities in the hash.
6276 */
6277 hash_clean(aggregate->lcommunity_hash,
6278 bgp_aggr_lcommunity_remove);
6279 /* Free up the lcommunity_hash.
6280 */
6281 hash_free(aggregate->lcommunity_hash);
6282 }
6283
6284 if (aggregate->aspath)
6285 aspath_free(aggregate->aspath);
6286
6287 if (aggregate->aspath_hash) {
6288 /* Delete all as-paths in the hash.
6289 */
6290 hash_clean(aggregate->aspath_hash,
6291 bgp_aggr_aspath_remove);
6292 /* Free up the aspath_hash.
6293 */
6294 hash_free(aggregate->aspath_hash);
6295 }
6296
d62a17ae 6297 bgp_aggregate_free(aggregate);
6298 bgp_unlock_node(rn);
6299 bgp_unlock_node(rn);
6300
6301 return CMD_SUCCESS;
6302}
6303
6304static int bgp_aggregate_set(struct vty *vty, const char *prefix_str, afi_t afi,
d7c0a89a 6305 safi_t safi, uint8_t summary_only, uint8_t as_set)
d62a17ae 6306{
6307 VTY_DECLVAR_CONTEXT(bgp, bgp);
6308 int ret;
6309 struct prefix p;
6310 struct bgp_node *rn;
6311 struct bgp_aggregate *aggregate;
6312
6313 /* Convert string to prefix structure. */
6314 ret = str2prefix(prefix_str, &p);
6315 if (!ret) {
6316 vty_out(vty, "Malformed prefix\n");
6317 return CMD_WARNING_CONFIG_FAILED;
6318 }
6319 apply_mask(&p);
6320
3624ac81
DS		 6321 if ((afi == AFI_IP && p.prefixlen == IPV4_MAX_BITLEN) ||
6322 (afi == AFI_IP6 && p.prefixlen == IPV6_MAX_BITLEN)) {
6323 vty_out(vty, "Specified prefix: %s will not result in any useful aggregation, disallowing\n",
6324 prefix_str);
6325 return CMD_WARNING_CONFIG_FAILED;
6326 }
6327
d62a17ae 6328 /* Old configuration check. */
6329 rn = bgp_node_get(bgp->aggregate[afi][safi], &p);
6330
67009e22 6331 if (bgp_node_has_bgp_path_info_data(rn)) {
d62a17ae 6332 vty_out(vty, "There is already same aggregate network.\n");
6333 /* try to remove the old entry */
6334 ret = bgp_aggregate_unset(vty, prefix_str, afi, safi);
6335 if (ret) {
6336 vty_out(vty, "Error deleting aggregate.\n");
6337 bgp_unlock_node(rn);
6338 return CMD_WARNING_CONFIG_FAILED;
6339 }
6340 }
718e3744 6341
d62a17ae 6342 /* Make aggregate address structure. */
6343 aggregate = bgp_aggregate_new();
6344 aggregate->summary_only = summary_only;
6345 aggregate->as_set = as_set;
6346 aggregate->safi = safi;
b613a918 6347 bgp_node_set_bgp_aggregate_info(rn, aggregate);
718e3744 6348
d62a17ae 6349 /* Aggregate address insert into BGP routing table. */
fc968841 6350 bgp_aggregate_route(bgp, &p, afi, safi, aggregate);
718e3744 6351
d62a17ae 6352 return CMD_SUCCESS;
718e3744 6353}
6354
6355DEFUN (aggregate_address,
6356 aggregate_address_cmd,
e3e6107d 6357 "aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
718e3744 6358 "Configure BGP aggregate entries\n"
6359 "Aggregate prefix\n"
6360 "Generate AS set path information\n"
a636c635
DW		 6361 "Filter more specific routes from updates\n"
6362 "Filter more specific routes from updates\n"
6363 "Generate AS set path information\n")
718e3744 6364{
d62a17ae 6365 int idx = 0;
6366 argv_find(argv, argc, "A.B.C.D/M", &idx);
6367 char *prefix = argv[idx]->arg;
6368 int as_set =
6369 argv_find(argv, argc, "as-set", &idx) ? AGGREGATE_AS_SET : 0;
6370 idx = 0;
6371 int summary_only = argv_find(argv, argc, "summary-only", &idx)
6372 ? AGGREGATE_SUMMARY_ONLY
6373 : 0;
e3e6107d 6374
d62a17ae 6375 return bgp_aggregate_set(vty, prefix, AFI_IP, bgp_node_safi(vty),
6376 summary_only, as_set);
718e3744 6377}
6378
e3e6107d
QY		 6379DEFUN (aggregate_address_mask,
6380 aggregate_address_mask_cmd,
6381 "aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
718e3744 6382 "Configure BGP aggregate entries\n"
6383 "Aggregate address\n"
6384 "Aggregate mask\n"
6385 "Generate AS set path information\n"
a636c635
DW		 6386 "Filter more specific routes from updates\n"
6387 "Filter more specific routes from updates\n"
6388 "Generate AS set path information\n")
718e3744 6389{
d62a17ae 6390 int idx = 0;
6391 argv_find(argv, argc, "A.B.C.D", &idx);
6392 char *prefix = argv[idx]->arg;
6393 char *mask = argv[idx + 1]->arg;
6394 int as_set =
6395 argv_find(argv, argc, "as-set", &idx) ? AGGREGATE_AS_SET : 0;
6396 idx = 0;
6397 int summary_only = argv_find(argv, argc, "summary-only", &idx)
6398 ? AGGREGATE_SUMMARY_ONLY
6399 : 0;
6400
6401 char prefix_str[BUFSIZ];
6402 int ret = netmask_str2prefix_str(prefix, mask, prefix_str);
6403
6404 if (!ret) {
6405 vty_out(vty, "%% Inconsistent address and mask\n");
6406 return CMD_WARNING_CONFIG_FAILED;
6407 }
718e3744 6408
d62a17ae 6409 return bgp_aggregate_set(vty, prefix_str, AFI_IP, bgp_node_safi(vty),
6410 summary_only, as_set);
718e3744 6411}
6412
718e3744 6413DEFUN (no_aggregate_address,
6414 no_aggregate_address_cmd,
e3e6107d 6415 "no aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
718e3744 6416 NO_STR
6417 "Configure BGP aggregate entries\n"
a636c635
DW		 6418 "Aggregate prefix\n"
6419 "Generate AS set path information\n"
e3e6107d
QY		 6420 "Filter more specific routes from updates\n"
6421 "Filter more specific routes from updates\n"
6422 "Generate AS set path information\n")
718e3744 6423{
d62a17ae 6424 int idx = 0;
6425 argv_find(argv, argc, "A.B.C.D/M", &idx);
6426 char *prefix = argv[idx]->arg;
6427 return bgp_aggregate_unset(vty, prefix, AFI_IP, bgp_node_safi(vty));
718e3744 6428}
6429
718e3744 6430DEFUN (no_aggregate_address_mask,
6431 no_aggregate_address_mask_cmd,
e3e6107d 6432 "no aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
718e3744 6433 NO_STR
6434 "Configure BGP aggregate entries\n"
6435 "Aggregate address\n"
a636c635
DW		 6436 "Aggregate mask\n"
6437 "Generate AS set path information\n"
e3e6107d
QY		 6438 "Filter more specific routes from updates\n"
6439 "Filter more specific routes from updates\n"
6440 "Generate AS set path information\n")
718e3744 6441{
d62a17ae 6442 int idx = 0;
6443 argv_find(argv, argc, "A.B.C.D", &idx);
6444 char *prefix = argv[idx]->arg;
6445 char *mask = argv[idx + 1]->arg;
718e3744 6446
d62a17ae 6447 char prefix_str[BUFSIZ];
6448 int ret = netmask_str2prefix_str(prefix, mask, prefix_str);
718e3744 6449
d62a17ae 6450 if (!ret) {
6451 vty_out(vty, "%% Inconsistent address and mask\n");
6452 return CMD_WARNING_CONFIG_FAILED;
6453 }
718e3744 6454
d62a17ae 6455 return bgp_aggregate_unset(vty, prefix_str, AFI_IP, bgp_node_safi(vty));
718e3744 6456}
6457
718e3744 6458DEFUN (ipv6_aggregate_address,
6459 ipv6_aggregate_address_cmd,
e3e6107d 6460 "aggregate-address X:X::X:X/M [summary-only]",
718e3744 6461 "Configure BGP aggregate entries\n"
6462 "Aggregate prefix\n"
6463 "Filter more specific routes from updates\n")
6464{
d62a17ae 6465 int idx = 0;
6466 argv_find(argv, argc, "X:X::X:X/M", &idx);
6467 char *prefix = argv[idx]->arg;
6468 int sum_only = argv_find(argv, argc, "summary-only", &idx)
6469 ? AGGREGATE_SUMMARY_ONLY
6470 : 0;
6471 return bgp_aggregate_set(vty, prefix, AFI_IP6, SAFI_UNICAST, sum_only,
6472 0);
718e3744 6473}
6474
6475DEFUN (no_ipv6_aggregate_address,
6476 no_ipv6_aggregate_address_cmd,
e3e6107d 6477 "no aggregate-address X:X::X:X/M [summary-only]",
718e3744 6478 NO_STR
6479 "Configure BGP aggregate entries\n"
16cedbb0
QY		 6480 "Aggregate prefix\n"
6481 "Filter more specific routes from updates\n")
718e3744 6482{
d62a17ae 6483 int idx = 0;
6484 argv_find(argv, argc, "X:X::X:X/M", &idx);
6485 char *prefix = argv[idx]->arg;
6486 return bgp_aggregate_unset(vty, prefix, AFI_IP6, SAFI_UNICAST);
718e3744 6487}
6488
718e3744 6489/* Redistribute route treatment. */
d62a17ae 6490void bgp_redistribute_add(struct bgp *bgp, struct prefix *p,
9de1f7ff
DS		 6491 const union g_addr *nexthop, ifindex_t ifindex,
6492 enum nexthop_types_t nhtype, uint32_t metric,
d7c0a89a
QY		 6493 uint8_t type, unsigned short instance,
6494 route_tag_t tag)
d62a17ae 6495{
4b7e6066 6496 struct bgp_path_info *new;
40381db7
DS		 6497 struct bgp_path_info *bpi;
6498 struct bgp_path_info rmap_path;
d62a17ae 6499 struct bgp_node *bn;
6500 struct attr attr;
6501 struct attr *new_attr;
6502 afi_t afi;
6503 int ret;
6504 struct bgp_redist *red;
6505
6506 /* Make default attribute. */
6507 bgp_attr_default_set(&attr, BGP_ORIGIN_INCOMPLETE);
9de1f7ff 6508
a4d82a8a 6509 switch (nhtype) {
9de1f7ff
DS		 6510 case NEXTHOP_TYPE_IFINDEX:
6511 break;
6512 case NEXTHOP_TYPE_IPV4:
6513 case NEXTHOP_TYPE_IPV4_IFINDEX:
6514 attr.nexthop = nexthop->ipv4;
6515 break;
6516 case NEXTHOP_TYPE_IPV6:
6517 case NEXTHOP_TYPE_IPV6_IFINDEX:
6518 attr.mp_nexthop_global = nexthop->ipv6;
6519 attr.mp_nexthop_len = BGP_ATTR_NHLEN_IPV6_GLOBAL;
6520 break;
6521 case NEXTHOP_TYPE_BLACKHOLE:
74489921
RW		 6522 switch (p->family) {
6523 case AF_INET:
9de1f7ff 6524 attr.nexthop.s_addr = INADDR_ANY;
74489921
RW		 6525 break;
6526 case AF_INET6:
9de1f7ff
DS		 6527 memset(&attr.mp_nexthop_global, 0,
6528 sizeof(attr.mp_nexthop_global));
74489921 6529 attr.mp_nexthop_len = BGP_ATTR_NHLEN_IPV6_GLOBAL;
9de1f7ff 6530 break;
74489921 6531 }
9de1f7ff 6532 break;
d62a17ae 6533 }
74489921 6534 attr.nh_ifindex = ifindex;
f04a80a5 6535
d62a17ae 6536 attr.med = metric;
6537 attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC);
6538 attr.tag = tag;
718e3744 6539
d62a17ae 6540 afi = family2afi(p->family);
6aeb9e78 6541
d62a17ae 6542 red = bgp_redist_lookup(bgp, afi, type, instance);
6543 if (red) {
6544 struct attr attr_new;
718e3744 6545
d62a17ae 6546 /* Copy attribute for modification. */
6547 bgp_attr_dup(&attr_new, &attr);
718e3744 6548
d62a17ae 6549 if (red->redist_metric_flag)
6550 attr_new.med = red->redist_metric;
718e3744 6551
d62a17ae 6552 /* Apply route-map. */
6553 if (red->rmap.name) {
40381db7
DS		 6554 memset(&rmap_path, 0, sizeof(struct bgp_path_info));
6555 rmap_path.peer = bgp->peer_self;
6556 rmap_path.attr = &attr_new;
718e3744 6557
d62a17ae 6558 SET_FLAG(bgp->peer_self->rmap_type,
6559 PEER_RMAP_TYPE_REDISTRIBUTE);
6560
6561 ret = route_map_apply(red->rmap.map, p, RMAP_BGP,
40381db7 6562 &rmap_path);
d62a17ae 6563
6564 bgp->peer_self->rmap_type = 0;
6565
6566 if (ret == RMAP_DENYMATCH) {
6567 /* Free uninterned attribute. */
6568 bgp_attr_flush(&attr_new);
6569
6570 /* Unintern original. */
6571 aspath_unintern(&attr.aspath);
6572 bgp_redistribute_delete(bgp, p, type, instance);
6573 return;
6574 }
6575 }
6576
7f323236
DW		 6577 if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN))
6578 bgp_attr_add_gshut_community(&attr_new);
6579
d62a17ae 6580 bn = bgp_afi_node_get(bgp->rib[afi][SAFI_UNICAST], afi,
6581 SAFI_UNICAST, p, NULL);
6582
6583 new_attr = bgp_attr_intern(&attr_new);
6584
6f94b685
DS		 6585 for (bpi = bgp_node_get_bgp_path_info(bn); bpi;
6586 bpi = bpi->next)
40381db7
DS		 6587 if (bpi->peer == bgp->peer_self
6588 && bpi->sub_type == BGP_ROUTE_REDISTRIBUTE)
d62a17ae 6589 break;
6590
40381db7 6591 if (bpi) {
d62a17ae 6592 /* Ensure the (source route) type is updated. */
40381db7
DS		 6593 bpi->type = type;
6594 if (attrhash_cmp(bpi->attr, new_attr)
6595 && !CHECK_FLAG(bpi->flags, BGP_PATH_REMOVED)) {
d62a17ae 6596 bgp_attr_unintern(&new_attr);
6597 aspath_unintern(&attr.aspath);
6598 bgp_unlock_node(bn);
6599 return;
6600 } else {
6601 /* The attribute is changed. */
40381db7 6602 bgp_path_info_set_flag(bn, bpi,
18ee8310 6603 BGP_PATH_ATTR_CHANGED);
d62a17ae 6604
6605 /* Rewrite BGP route information. */
40381db7
DS		 6606 if (CHECK_FLAG(bpi->flags, BGP_PATH_REMOVED))
6607 bgp_path_info_restore(bn, bpi);
d62a17ae 6608 else
40381db7
DS		 6609 bgp_aggregate_decrement(
6610 bgp, p, bpi, afi, SAFI_UNICAST);
6611 bgp_attr_unintern(&bpi->attr);
6612 bpi->attr = new_attr;
6613 bpi->uptime = bgp_clock();
d62a17ae 6614
6615 /* Process change. */
40381db7 6616 bgp_aggregate_increment(bgp, p, bpi, afi,
d62a17ae 6617 SAFI_UNICAST);
6618 bgp_process(bgp, bn, afi, SAFI_UNICAST);
6619 bgp_unlock_node(bn);
6620 aspath_unintern(&attr.aspath);
ddb5b488
PZ		 6621
6622 if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
6623 || (bgp->inst_type
6624 == BGP_INSTANCE_TYPE_DEFAULT)) {
6625
6626 vpn_leak_from_vrf_update(
40381db7 6627 bgp_get_default(), bgp, bpi);
ddb5b488 6628 }
d62a17ae 6629 return;
6630 }
6631 }
6632
6633 new = info_make(type, BGP_ROUTE_REDISTRIBUTE, instance,
6634 bgp->peer_self, new_attr, bn);
1defdda8 6635 SET_FLAG(new->flags, BGP_PATH_VALID);
d62a17ae 6636
6637 bgp_aggregate_increment(bgp, p, new, afi, SAFI_UNICAST);
18ee8310 6638 bgp_path_info_add(bn, new);
d62a17ae 6639 bgp_unlock_node(bn);
6640 bgp_process(bgp, bn, afi, SAFI_UNICAST);
ddb5b488
PZ		 6641
6642 if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
6643 || (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
6644
6645 vpn_leak_from_vrf_update(bgp_get_default(), bgp, new);
6646 }
d62a17ae 6647 }
6648
6649 /* Unintern original. */
6650 aspath_unintern(&attr.aspath);
718e3744 6651}
6652
d7c0a89a
QY		 6653void bgp_redistribute_delete(struct bgp *bgp, struct prefix *p, uint8_t type,
6654 unsigned short instance)
718e3744 6655{
d62a17ae 6656 afi_t afi;
6657 struct bgp_node *rn;
40381db7 6658 struct bgp_path_info *pi;
d62a17ae 6659 struct bgp_redist *red;
718e3744 6660
d62a17ae 6661 afi = family2afi(p->family);
718e3744 6662
d62a17ae 6663 red = bgp_redist_lookup(bgp, afi, type, instance);
6664 if (red) {
6665 rn = bgp_afi_node_get(bgp->rib[afi][SAFI_UNICAST], afi,
6666 SAFI_UNICAST, p, NULL);
6667
6f94b685 6668 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7 6669 if (pi->peer == bgp->peer_self && pi->type == type)
d62a17ae 6670 break;
6671
40381db7 6672 if (pi) {
ddb5b488
PZ		 6673 if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
6674 || (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
6675
6676 vpn_leak_from_vrf_withdraw(bgp_get_default(),
40381db7 6677 bgp, pi);
ddb5b488 6678 }
40381db7
DS		 6679 bgp_aggregate_decrement(bgp, p, pi, afi, SAFI_UNICAST);
6680 bgp_path_info_delete(rn, pi);
d62a17ae 6681 bgp_process(bgp, rn, afi, SAFI_UNICAST);
6682 }
6683 bgp_unlock_node(rn);
6684 }
6685}
6686
6687/* Withdraw specified route type's route. */
6688void bgp_redistribute_withdraw(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 6689 unsigned short instance)
d62a17ae 6690{
6691 struct bgp_node *rn;
40381db7 6692 struct bgp_path_info *pi;
d62a17ae 6693 struct bgp_table *table;
6694
6695 table = bgp->rib[afi][SAFI_UNICAST];
6696
6697 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
6f94b685 6698 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next)
40381db7
DS		 6699 if (pi->peer == bgp->peer_self && pi->type == type
6700 && pi->instance == instance)
d62a17ae 6701 break;
6702
40381db7 6703 if (pi) {
ddb5b488
PZ		 6704 if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
6705 || (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
6706
6707 vpn_leak_from_vrf_withdraw(bgp_get_default(),
40381db7 6708 bgp, pi);
ddb5b488 6709 }
40381db7 6710 bgp_aggregate_decrement(bgp, &rn->p, pi, afi,
d62a17ae 6711 SAFI_UNICAST);
40381db7 6712 bgp_path_info_delete(rn, pi);
d62a17ae 6713 bgp_process(bgp, rn, afi, SAFI_UNICAST);
6714 }
718e3744 6715 }
718e3744 6716}
6b0655a2 6717
718e3744 6718/* Static function to display route. */
9c92b5f7
MK		 6719static void route_vty_out_route(struct prefix *p, struct vty *vty,
6720 json_object *json)
718e3744 6721{
be054588 6722 int len = 0;
d62a17ae 6723 char buf[BUFSIZ];
50e05855 6724 char buf2[BUFSIZ];
718e3744 6725
d62a17ae 6726 if (p->family == AF_INET) {
c6462ff4 6727 if (!json) {
89e5e9f0
PM		 6728 len = vty_out(
6729 vty, "%s/%d",
6730 inet_ntop(p->family, &p->u.prefix, buf, BUFSIZ),
6731 p->prefixlen);
c6462ff4
MK		 6732 } else {
6733 json_object_string_add(json, "prefix",
6734 inet_ntop(p->family,
6735 &p->u.prefix, buf,
6736 BUFSIZ));
6737 json_object_int_add(json, "prefixLen", p->prefixlen);
37d4e0df 6738 prefix2str(p, buf2, PREFIX_STRLEN);
50e05855 6739 json_object_string_add(json, "network", buf2);
c6462ff4 6740 }
d62a17ae 6741 } else if (p->family == AF_ETHERNET) {
b03b8898
DS		 6742 prefix2str(p, buf, PREFIX_STRLEN);
6743 len = vty_out(vty, "%s", buf);
6744 } else if (p->family == AF_EVPN) {
57f7feb6 6745 if (!json)
60466a63
QY		 6746 len = vty_out(
6747 vty, "%s",
6748 bgp_evpn_route2str((struct prefix_evpn *)p, buf,
6749 BUFSIZ));
57f7feb6 6750 else
60466a63 6751 bgp_evpn_route2json((struct prefix_evpn *)p, json);
dba3c1d3
PG		 6752 } else if (p->family == AF_FLOWSPEC) {
6753 route_vty_out_flowspec(vty, p, NULL,
d33fc23b
PG		 6754 json ?
6755 NLRI_STRING_FORMAT_JSON_SIMPLE :
6756 NLRI_STRING_FORMAT_MIN, json);
9c92b5f7 6757 } else {
c6462ff4 6758 if (!json)
60466a63
QY		 6759 len = vty_out(
6760 vty, "%s/%d",
6761 inet_ntop(p->family, &p->u.prefix, buf, BUFSIZ),
6762 p->prefixlen);
50e05855
AD		 6763 else {
6764 json_object_string_add(json, "prefix",
6765 inet_ntop(p->family,
6766 &p->u.prefix, buf,
6767 BUFSIZ));
6768 json_object_int_add(json, "prefixLen", p->prefixlen);
37d4e0df
AD		 6769 prefix2str(p, buf2, PREFIX_STRLEN);
6770 json_object_string_add(json, "network", buf2);
6771 }
9c92b5f7 6772 }
d62a17ae 6773
9c92b5f7
MK		 6774 if (!json) {
6775 len = 17 - len;
6776 if (len < 1)
6777 vty_out(vty, "\n%*s", 20, " ");
6778 else
6779 vty_out(vty, "%*s", len, " ");
6780 }
718e3744 6781}
6782
d62a17ae 6783enum bgp_display_type {
6784 normal_list,
718e3744 6785};
6786
18ee8310 6787/* Print the short form route status for a bgp_path_info */
4b7e6066 6788static void route_vty_short_status_out(struct vty *vty,
9b6d8fcf 6789 struct bgp_path_info *path,
d62a17ae 6790 json_object *json_path)
718e3744 6791{
d62a17ae 6792 if (json_path) {
b05a1c8b 6793
d62a17ae 6794 /* Route status display. */
9b6d8fcf 6795 if (CHECK_FLAG(path->flags, BGP_PATH_REMOVED))
d62a17ae 6796 json_object_boolean_true_add(json_path, "removed");
b05a1c8b 6797
9b6d8fcf 6798 if (CHECK_FLAG(path->flags, BGP_PATH_STALE))
d62a17ae 6799 json_object_boolean_true_add(json_path, "stale");
b05a1c8b 6800
9b6d8fcf 6801 if (path->extra && path->extra->suppress)
d62a17ae 6802 json_object_boolean_true_add(json_path, "suppressed");
b05a1c8b 6803
9b6d8fcf
DS		 6804 if (CHECK_FLAG(path->flags, BGP_PATH_VALID)
6805 && !CHECK_FLAG(path->flags, BGP_PATH_HISTORY))
d62a17ae 6806 json_object_boolean_true_add(json_path, "valid");
b05a1c8b 6807
d62a17ae 6808 /* Selected */
9b6d8fcf 6809 if (CHECK_FLAG(path->flags, BGP_PATH_HISTORY))
d62a17ae 6810 json_object_boolean_true_add(json_path, "history");
b05a1c8b 6811
9b6d8fcf 6812 if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED))
d62a17ae 6813 json_object_boolean_true_add(json_path, "damped");
b05a1c8b 6814
9b6d8fcf 6815 if (CHECK_FLAG(path->flags, BGP_PATH_SELECTED))
d62a17ae 6816 json_object_boolean_true_add(json_path, "bestpath");
b05a1c8b 6817
9b6d8fcf 6818 if (CHECK_FLAG(path->flags, BGP_PATH_MULTIPATH))
d62a17ae 6819 json_object_boolean_true_add(json_path, "multipath");
b05a1c8b 6820
d62a17ae 6821 /* Internal route. */
9b6d8fcf
DS		 6822 if ((path->peer->as)
6823 && (path->peer->as == path->peer->local_as))
d62a17ae 6824 json_object_string_add(json_path, "pathFrom",
6825 "internal");
6826 else
6827 json_object_string_add(json_path, "pathFrom",
6828 "external");
b05a1c8b 6829
d62a17ae 6830 return;
6831 }
b05a1c8b 6832
d62a17ae 6833 /* Route status display. */
9b6d8fcf 6834 if (CHECK_FLAG(path->flags, BGP_PATH_REMOVED))
d62a17ae 6835 vty_out(vty, "R");
9b6d8fcf 6836 else if (CHECK_FLAG(path->flags, BGP_PATH_STALE))
d62a17ae 6837 vty_out(vty, "S");
9b6d8fcf 6838 else if (path->extra && path->extra->suppress)
d62a17ae 6839 vty_out(vty, "s");
9b6d8fcf
DS		 6840 else if (CHECK_FLAG(path->flags, BGP_PATH_VALID)
6841 && !CHECK_FLAG(path->flags, BGP_PATH_HISTORY))
d62a17ae 6842 vty_out(vty, "*");
6843 else
6844 vty_out(vty, " ");
6845
6846 /* Selected */
9b6d8fcf 6847 if (CHECK_FLAG(path->flags, BGP_PATH_HISTORY))
d62a17ae 6848 vty_out(vty, "h");
9b6d8fcf 6849 else if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED))
d62a17ae 6850 vty_out(vty, "d");
9b6d8fcf 6851 else if (CHECK_FLAG(path->flags, BGP_PATH_SELECTED))
d62a17ae 6852 vty_out(vty, ">");
9b6d8fcf 6853 else if (CHECK_FLAG(path->flags, BGP_PATH_MULTIPATH))
d62a17ae 6854 vty_out(vty, "=");
6855 else
6856 vty_out(vty, " ");
718e3744 6857
d62a17ae 6858 /* Internal route. */
9b6d8fcf
DS		 6859 if (path->peer && (path->peer->as)
6860 && (path->peer->as == path->peer->local_as))
d62a17ae 6861 vty_out(vty, "i");
6862 else
6863 vty_out(vty, " ");
b40d939b 6864}
6865
6866/* called from terminal list command */
4b7e6066 6867void route_vty_out(struct vty *vty, struct prefix *p,
9b6d8fcf 6868 struct bgp_path_info *path, int display, safi_t safi,
4b7e6066 6869 json_object *json_paths)
d62a17ae 6870{
6871 struct attr *attr;
6872 json_object *json_path = NULL;
6873 json_object *json_nexthops = NULL;
6874 json_object *json_nexthop_global = NULL;
6875 json_object *json_nexthop_ll = NULL;
9df8b37c 6876 char vrf_id_str[VRF_NAMSIZ] = {0};
1defdda8 6877 bool nexthop_self =
9b6d8fcf 6878 CHECK_FLAG(path->flags, BGP_PATH_ANNC_NH_SELF) ? true : false;
9df8b37c 6879 bool nexthop_othervrf = false;
43089216 6880 vrf_id_t nexthop_vrfid = VRF_DEFAULT;
4d97eea6 6881 const char *nexthop_vrfname = VRF_DEFAULT_NAME;
d62a17ae 6882
6883 if (json_paths)
6884 json_path = json_object_new_object();
6885
6886 /* short status lead text */
9b6d8fcf 6887 route_vty_short_status_out(vty, path, json_path);
d62a17ae 6888
6889 if (!json_paths) {
6890 /* print prefix and mask */
6891 if (!display)
9c92b5f7 6892 route_vty_out_route(p, vty, json_path);
d62a17ae 6893 else
6894 vty_out(vty, "%*s", 17, " ");
9c92b5f7 6895 } else {
b682f6de 6896 route_vty_out_route(p, vty, json_path);
d62a17ae 6897 }
47fc97cc 6898
d62a17ae 6899 /* Print attribute */
9b6d8fcf 6900 attr = path->attr;
445c2480
DS		 6901 if (!attr) {
6902 if (json_paths)
6903 json_object_array_add(json_paths, json_path);
6904 else
6905 vty_out(vty, "\n");
d62a17ae 6906
445c2480
DS		 6907 return;
6908 }
6909
9df8b37c
PZ		 6910 /*
6911 * If vrf id of nexthop is different from that of prefix,
6912 * set up printable string to append
6913 */
9b6d8fcf 6914 if (path->extra && path->extra->bgp_orig) {
9df8b37c
PZ		 6915 const char *self = "";
6916
6917 if (nexthop_self)
6918 self = "<";
6919
6920 nexthop_othervrf = true;
9b6d8fcf 6921 nexthop_vrfid = path->extra->bgp_orig->vrf_id;
9df8b37c 6922
9b6d8fcf 6923 if (path->extra->bgp_orig->vrf_id == VRF_UNKNOWN)
9df8b37c
PZ		 6924 snprintf(vrf_id_str, sizeof(vrf_id_str),
6925 "@%s%s", VRFID_NONE_STR, self);
6926 else
6927 snprintf(vrf_id_str, sizeof(vrf_id_str), "@%u%s",
9b6d8fcf 6928 path->extra->bgp_orig->vrf_id, self);
9df8b37c 6929
9b6d8fcf
DS		 6930 if (path->extra->bgp_orig->inst_type
6931 != BGP_INSTANCE_TYPE_DEFAULT)
9df8b37c 6932
9b6d8fcf 6933 nexthop_vrfname = path->extra->bgp_orig->name;
9df8b37c
PZ		 6934 } else {
6935 const char *self = "";
6936
6937 if (nexthop_self)
6938 self = "<";
6939
6940 snprintf(vrf_id_str, sizeof(vrf_id_str), "%s", self);
6941 }
6942
445c2480
DS		 6943 /*
6944 * For ENCAP and EVPN routes, nexthop address family is not
6945 * neccessarily the same as the prefix address family.
6946 * Both SAFI_MPLS_VPN and SAFI_ENCAP use the MP nexthop field
6947 * EVPN routes are also exchanged with a MP nexthop. Currently,
6948 * this
6949 * is only IPv4, the value will be present in either
6950 * attr->nexthop or
6951 * attr->mp_nexthop_global_in
6952 */
6953 if ((safi == SAFI_ENCAP) || (safi == SAFI_MPLS_VPN)) {
6954 char buf[BUFSIZ];
6955 char nexthop[128];
6956 int af = NEXTHOP_FAMILY(attr->mp_nexthop_len);
6957
6958 switch (af) {
6959 case AF_INET:
6960 sprintf(nexthop, "%s",
a4d82a8a
PZ		 6961 inet_ntop(af, &attr->mp_nexthop_global_in, buf,
6962 BUFSIZ));
445c2480
DS		 6963 break;
6964 case AF_INET6:
6965 sprintf(nexthop, "%s",
a4d82a8a
PZ		 6966 inet_ntop(af, &attr->mp_nexthop_global, buf,
6967 BUFSIZ));
445c2480
DS		 6968 break;
6969 default:
6970 sprintf(nexthop, "?");
6971 break;
d62a17ae 6972 }
d62a17ae 6973
445c2480
DS		 6974 if (json_paths) {
6975 json_nexthop_global = json_object_new_object();
6976
a4d82a8a
PZ		 6977 json_object_string_add(json_nexthop_global, "afi",
6978 (af == AF_INET) ? "ip" : "ipv6");
445c2480 6979 json_object_string_add(json_nexthop_global,
a4d82a8a 6980 (af == AF_INET) ? "ip" : "ipv6",
445c2480
DS		 6981 nexthop);
6982 json_object_boolean_true_add(json_nexthop_global,
6983 "used");
6984 } else
9df8b37c 6985 vty_out(vty, "%s%s", nexthop, vrf_id_str);
445c2480
DS		 6986 } else if (safi == SAFI_EVPN) {
6987 if (json_paths) {
6988 json_nexthop_global = json_object_new_object();
6989
6990 json_object_string_add(json_nexthop_global, "ip",
6991 inet_ntoa(attr->nexthop));
a4d82a8a
PZ		 6992 json_object_string_add(json_nexthop_global, "afi",
6993 "ipv4");
445c2480
DS		 6994 json_object_boolean_true_add(json_nexthop_global,
6995 "used");
6996 } else
9df8b37c
PZ		 6997 vty_out(vty, "%-16s%s", inet_ntoa(attr->nexthop),
6998 vrf_id_str);
d33fc23b 6999 } else if (safi == SAFI_FLOWSPEC) {
026b914a
PG		 7000 if (attr->nexthop.s_addr != 0) {
7001 if (json_paths) {
7002 json_nexthop_global = json_object_new_object();
7003 json_object_string_add(
7004 json_nexthop_global, "ip",
7005 inet_ntoa(attr->nexthop));
7006 json_object_string_add(json_nexthop_global,
7007 "afi", "ipv4");
50e05855
AD		 7008 json_object_boolean_true_add(
7009 json_nexthop_global,
026b914a
PG		 7010 "used");
7011 } else {
7012 vty_out(vty, "%-16s", inet_ntoa(attr->nexthop));
7013 }
7014 }
d33fc23b 7015 } else if (p->family == AF_INET && !BGP_ATTR_NEXTHOP_AFI_IP6(attr)) {
445c2480
DS		 7016 if (json_paths) {
7017 json_nexthop_global = json_object_new_object();
d62a17ae 7018
a4d82a8a
PZ		 7019 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_EVPN))
7020 json_object_string_add(
7021 json_nexthop_global, "ip",
7022 inet_ntoa(attr->mp_nexthop_global_in));
445c2480 7023 else
a4d82a8a
PZ		 7024 json_object_string_add(
7025 json_nexthop_global, "ip",
7026 inet_ntoa(attr->nexthop));
445c2480 7027
a4d82a8a
PZ		 7028 json_object_string_add(json_nexthop_global, "afi",
7029 "ipv4");
445c2480
DS		 7030 json_object_boolean_true_add(json_nexthop_global,
7031 "used");
7032 } else {
9df8b37c
PZ		 7033 char buf[BUFSIZ];
7034
d87ff2dd 7035 snprintf(buf, sizeof(buf), "%s%s",
7036 inet_ntoa(attr->nexthop), vrf_id_str);
9df8b37c 7037 vty_out(vty, "%-16s", buf);
d62a17ae 7038 }
445c2480 7039 }
b05a1c8b 7040
445c2480 7041 /* IPv6 Next Hop */
a4d82a8a 7042 else if (p->family == AF_INET6 || BGP_ATTR_NEXTHOP_AFI_IP6(attr)) {
445c2480
DS		 7043 int len;
7044 char buf[BUFSIZ];
d62a17ae 7045
445c2480
DS		 7046 if (json_paths) {
7047 json_nexthop_global = json_object_new_object();
a4d82a8a
PZ		 7048 json_object_string_add(
7049 json_nexthop_global, "ip",
7050 inet_ntop(AF_INET6, &attr->mp_nexthop_global,
7051 buf, BUFSIZ));
7052 json_object_string_add(json_nexthop_global, "afi",
7053 "ipv6");
7054 json_object_string_add(json_nexthop_global, "scope",
7055 "global");
445c2480
DS		 7056
7057 /* We display both LL & GL if both have been
7058 * received */
7059 if ((attr->mp_nexthop_len == 32)
9b6d8fcf 7060 || (path->peer->conf_if)) {
a4d82a8a 7061 json_nexthop_ll = json_object_new_object();
d62a17ae 7062 json_object_string_add(
445c2480 7063 json_nexthop_ll, "ip",
a4d82a8a
PZ		 7064 inet_ntop(AF_INET6,
7065 &attr->mp_nexthop_local, buf,
7066 BUFSIZ));
7067 json_object_string_add(json_nexthop_ll, "afi",
7068 "ipv6");
7069 json_object_string_add(json_nexthop_ll, "scope",
445c2480 7070 "link-local");
d62a17ae 7071
a4d82a8a
PZ		 7072 if ((IPV6_ADDR_CMP(&attr->mp_nexthop_global,
7073 &attr->mp_nexthop_local)
445c2480
DS		 7074 != 0)
7075 && !attr->mp_nexthop_prefer_global)
d62a17ae 7076 json_object_boolean_true_add(
a4d82a8a 7077 json_nexthop_ll, "used");
445c2480
DS		 7078 else
7079 json_object_boolean_true_add(
a4d82a8a 7080 json_nexthop_global, "used");
445c2480
DS		 7081 } else
7082 json_object_boolean_true_add(
7083 json_nexthop_global, "used");
7084 } else {
7085 /* Display LL if LL/Global both in table unless
7086 * prefer-global is set */
7087 if (((attr->mp_nexthop_len == 32)
7088 && !attr->mp_nexthop_prefer_global)
9b6d8fcf
DS		 7089 || (path->peer->conf_if)) {
7090 if (path->peer->conf_if) {
a4d82a8a 7091 len = vty_out(vty, "%s",
9b6d8fcf 7092 path->peer->conf_if);
445c2480
DS		 7093 len = 16 - len; /* len of IPv6
7094 addr + max
7095 len of def
7096 ifname */
7097
7098 if (len < 1)
a4d82a8a 7099 vty_out(vty, "\n%*s", 36, " ");
445c2480 7100 else
a4d82a8a 7101 vty_out(vty, "%*s", len, " ");
d62a17ae 7102 } else {
7103 len = vty_out(
9df8b37c 7104 vty, "%s%s",
d62a17ae 7105 inet_ntop(
7106 AF_INET6,
445c2480 7107 &attr->mp_nexthop_local,
9df8b37c
PZ		 7108 buf, BUFSIZ),
7109 vrf_id_str);
d62a17ae 7110 len = 16 - len;
7111
7112 if (len < 1)
a4d82a8a 7113 vty_out(vty, "\n%*s", 36, " ");
d62a17ae 7114 else
a4d82a8a 7115 vty_out(vty, "%*s", len, " ");
d62a17ae 7116 }
445c2480 7117 } else {
a4d82a8a 7118 len = vty_out(
9df8b37c 7119 vty, "%s%s",
a4d82a8a
PZ		 7120 inet_ntop(AF_INET6,
7121 &attr->mp_nexthop_global, buf,
9df8b37c
PZ		 7122 BUFSIZ),
7123 vrf_id_str);
445c2480
DS		 7124 len = 16 - len;
7125
7126 if (len < 1)
7127 vty_out(vty, "\n%*s", 36, " ");
7128 else
7129 vty_out(vty, "%*s", len, " ");
d62a17ae 7130 }
7131 }
445c2480 7132 }
718e3744 7133
445c2480
DS		 7134 /* MED/Metric */
7135 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC))
50e05855
AD		 7136 if (json_paths) {
7137
7138 /*
7139 * Adding "metric" field to match with corresponding
7140 * CLI. "med" will be deprecated in future.
7141 */
a4d82a8a 7142 json_object_int_add(json_path, "med", attr->med);
50e05855
AD		 7143 json_object_int_add(json_path, "metric", attr->med);
7144 } else
445c2480
DS		 7145 vty_out(vty, "%10u", attr->med);
7146 else if (!json_paths)
7147 vty_out(vty, " ");
d62a17ae 7148
445c2480
DS		 7149 /* Local Pref */
7150 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF))
50e05855
AD		 7151 if (json_paths) {
7152
7153 /*
7154 * Adding "locPrf" field to match with corresponding
7155 * CLI. "localPref" will be deprecated in future.
7156 */
445c2480
DS		 7157 json_object_int_add(json_path, "localpref",
7158 attr->local_pref);
50e05855
AD		 7159 json_object_int_add(json_path, "locPrf",
7160 attr->local_pref);
7161 } else
445c2480
DS		 7162 vty_out(vty, "%7u", attr->local_pref);
7163 else if (!json_paths)
7164 vty_out(vty, " ");
d62a17ae 7165
445c2480
DS		 7166 if (json_paths)
7167 json_object_int_add(json_path, "weight", attr->weight);
7168 else
7169 vty_out(vty, "%7u ", attr->weight);
47fc97cc 7170
445c2480
DS		 7171 if (json_paths) {
7172 char buf[BUFSIZ];
a4d82a8a
PZ		 7173 json_object_string_add(
7174 json_path, "peerId",
9b6d8fcf 7175 sockunion2str(&path->peer->su, buf, SU_ADDRSTRLEN));
445c2480 7176 }
b05a1c8b 7177
445c2480
DS		 7178 /* Print aspath */
7179 if (attr->aspath) {
50e05855
AD		 7180 if (json_paths) {
7181
7182 /*
7183 * Adding "path" field to match with corresponding
7184 * CLI. "aspath" will be deprecated in future.
7185 */
445c2480
DS		 7186 json_object_string_add(json_path, "aspath",
7187 attr->aspath->str);
50e05855
AD		 7188 json_object_string_add(json_path, "path",
7189 attr->aspath->str);
7190 } else
445c2480 7191 aspath_print_vty(vty, "%s", attr->aspath, " ");
d62a17ae 7192 }
f1aa5d8a 7193
445c2480
DS		 7194 /* Print origin */
7195 if (json_paths)
a4d82a8a
PZ		 7196 json_object_string_add(json_path, "origin",
7197 bgp_origin_long_str[attr->origin]);
445c2480
DS		 7198 else
7199 vty_out(vty, "%s", bgp_origin_str[attr->origin]);
7200
9df8b37c
PZ		 7201 if (json_paths) {
7202 if (nexthop_self)
7203 json_object_boolean_true_add(json_path,
7204 "announceNexthopSelf");
7205 if (nexthop_othervrf) {
7206 json_object_string_add(json_path, "nhVrfName",
7207 nexthop_vrfname);
7208
7209 json_object_int_add(json_path, "nhVrfId",
7210 ((nexthop_vrfid == VRF_UNKNOWN)
7211 ? -1
7212 : (int)nexthop_vrfid));
7213 }
7214 }
7215
d62a17ae 7216 if (json_paths) {
7217 if (json_nexthop_global || json_nexthop_ll) {
7218 json_nexthops = json_object_new_array();
f1aa5d8a 7219
d62a17ae 7220 if (json_nexthop_global)
7221 json_object_array_add(json_nexthops,
7222 json_nexthop_global);
f1aa5d8a 7223
d62a17ae 7224 if (json_nexthop_ll)
7225 json_object_array_add(json_nexthops,
7226 json_nexthop_ll);
f1aa5d8a 7227
d62a17ae 7228 json_object_object_add(json_path, "nexthops",
7229 json_nexthops);
7230 }
7231
7232 json_object_array_add(json_paths, json_path);
7233 } else {
7234 vty_out(vty, "\n");
65efcfce 7235#if ENABLE_BGP_VNC
d62a17ae 7236 /* prints an additional line, indented, with VNC info, if
7237 * present */
7238 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP))
9b6d8fcf 7239 rfapi_vty_out_vncinfo(vty, p, path, safi);
65efcfce 7240#endif
d62a17ae 7241 }
7242}
718e3744 7243
7244/* called from terminal list command */
d62a17ae 7245void route_vty_out_tmp(struct vty *vty, struct prefix *p, struct attr *attr,
9f049418 7246 safi_t safi, bool use_json, json_object *json_ar)
d62a17ae 7247{
7248 json_object *json_status = NULL;
7249 json_object *json_net = NULL;
7250 char buff[BUFSIZ];
50e05855 7251 char buf2[BUFSIZ];
d62a17ae 7252 /* Route status display. */
7253 if (use_json) {
7254 json_status = json_object_new_object();
7255 json_net = json_object_new_object();
7256 } else {
7257 vty_out(vty, "*");
7258 vty_out(vty, ">");
7259 vty_out(vty, " ");
7260 }
718e3744 7261
d62a17ae 7262 /* print prefix and mask */
50e05855 7263 if (use_json) {
d62a17ae 7264 json_object_string_add(
7265 json_net, "addrPrefix",
7266 inet_ntop(p->family, &p->u.prefix, buff, BUFSIZ));
50e05855 7267 json_object_int_add(json_net, "prefixLen", p->prefixlen);
37d4e0df 7268 prefix2str(p, buf2, PREFIX_STRLEN);
50e05855
AD		 7269 json_object_string_add(json_net, "network", buf2);
7270 } else
9c92b5f7 7271 route_vty_out_route(p, vty, NULL);
d62a17ae 7272
7273 /* Print attribute */
7274 if (attr) {
7275 if (use_json) {
7276 if (p->family == AF_INET
7277 && (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP
7278 || safi == SAFI_EVPN
7279 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr))) {
7280 if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP
7281 || safi == SAFI_EVPN)
7282 json_object_string_add(
7283 json_net, "nextHop",
7284 inet_ntoa(
7285 attr->mp_nexthop_global_in));
7286 else
7287 json_object_string_add(
7288 json_net, "nextHop",
7289 inet_ntoa(attr->nexthop));
7290 } else if (p->family == AF_INET6
7291 || BGP_ATTR_NEXTHOP_AFI_IP6(attr)) {
7292 char buf[BUFSIZ];
7293
7294 json_object_string_add(
aa0a10fc 7295 json_net, "nextHopGlobal",
d62a17ae 7296 inet_ntop(AF_INET6,
7297 &attr->mp_nexthop_global, buf,
7298 BUFSIZ));
7299 }
7300
7301 if (attr->flag
7302 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC))
7303 json_object_int_add(json_net, "metric",
7304 attr->med);
7305
50e05855
AD		 7306 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)) {
7307
7308 /*
7309 * Adding "locPrf" field to match with
7310 * corresponding CLI. "localPref" will be
7311 * deprecated in future.
7312 */
d62a17ae 7313 json_object_int_add(json_net, "localPref",
7314 attr->local_pref);
50e05855
AD		 7315 json_object_int_add(json_net, "locPrf",
7316 attr->local_pref);
7317 }
d62a17ae 7318
7319 json_object_int_add(json_net, "weight", attr->weight);
7320
7321 /* Print aspath */
50e05855
AD		 7322 if (attr->aspath) {
7323
7324 /*
7325 * Adding "path" field to match with
7326 * corresponding CLI. "localPref" will be
7327 * deprecated in future.
7328 */
d62a17ae 7329 json_object_string_add(json_net, "asPath",
7330 attr->aspath->str);
50e05855
AD		 7331 json_object_string_add(json_net, "path",
7332 attr->aspath->str);
7333 }
d62a17ae 7334
7335 /* Print origin */
7336 json_object_string_add(json_net, "bgpOriginCode",
7337 bgp_origin_str[attr->origin]);
7338 } else {
7339 if (p->family == AF_INET
7340 && (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP
7341 || safi == SAFI_EVPN
7342 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr))) {
7343 if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP
7344 || safi == SAFI_EVPN)
7345 vty_out(vty, "%-16s",
7346 inet_ntoa(
7347 attr->mp_nexthop_global_in));
7348 else
7349 vty_out(vty, "%-16s",
7350 inet_ntoa(attr->nexthop));
7351 } else if (p->family == AF_INET6
7352 || BGP_ATTR_NEXTHOP_AFI_IP6(attr)) {
7353 int len;
7354 char buf[BUFSIZ];
7355
7356 len = vty_out(
7357 vty, "%s",
7358 inet_ntop(AF_INET6,
7359 &attr->mp_nexthop_global, buf,
7360 BUFSIZ));
7361 len = 16 - len;
7362 if (len < 1)
7363 vty_out(vty, "\n%*s", 36, " ");
7364 else
7365 vty_out(vty, "%*s", len, " ");
7366 }
7367 if (attr->flag
7368 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC))
7369 vty_out(vty, "%10u", attr->med);
7370 else
7371 vty_out(vty, " ");
718e3744 7372
d62a17ae 7373 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF))
7374 vty_out(vty, "%7u", attr->local_pref);
7375 else
7376 vty_out(vty, " ");
7377
7378 vty_out(vty, "%7u ", attr->weight);
7379
7380 /* Print aspath */
7381 if (attr->aspath)
7382 aspath_print_vty(vty, "%s", attr->aspath, " ");
7383
7384 /* Print origin */
7385 vty_out(vty, "%s", bgp_origin_str[attr->origin]);
7386 }
7387 }
7388 if (use_json) {
7389 json_object_boolean_true_add(json_status, "*");
7390 json_object_boolean_true_add(json_status, ">");
7391 json_object_object_add(json_net, "appliedStatusSymbols",
7392 json_status);
7393 char buf_cut[BUFSIZ];
7394 json_object_object_add(
7395 json_ar,
7396 inet_ntop(p->family, &p->u.prefix, buf_cut, BUFSIZ),
7397 json_net);
7398 } else
7399 vty_out(vty, "\n");
7400}
7401
7402void route_vty_out_tag(struct vty *vty, struct prefix *p,
9b6d8fcf 7403 struct bgp_path_info *path, int display, safi_t safi,
d62a17ae 7404 json_object *json)
7405{
7406 json_object *json_out = NULL;
7407 struct attr *attr;
7408 mpls_label_t label = MPLS_INVALID_LABEL;
7409
9b6d8fcf 7410 if (!path->extra)
d62a17ae 7411 return;
7412
7413 if (json)
7414 json_out = json_object_new_object();
7415
7416 /* short status lead text */
9b6d8fcf 7417 route_vty_short_status_out(vty, path, json_out);
d62a17ae 7418
7419 /* print prefix and mask */
7420 if (json == NULL) {
7421 if (!display)
9c92b5f7 7422 route_vty_out_route(p, vty, NULL);
d62a17ae 7423 else
7424 vty_out(vty, "%*s", 17, " ");
7425 }
7426
7427 /* Print attribute */
9b6d8fcf 7428 attr = path->attr;
d62a17ae 7429 if (attr) {
7430 if (((p->family == AF_INET)
7431 && ((safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP)))
a4d82a8a 7432 || (safi == SAFI_EVPN && !BGP_ATTR_NEXTHOP_AFI_IP6(attr))
d62a17ae 7433 || (!BGP_ATTR_NEXTHOP_AFI_IP6(attr))) {
7434 if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP
7435 || safi == SAFI_EVPN) {
7436 if (json)
7437 json_object_string_add(
7438 json_out, "mpNexthopGlobalIn",
7439 inet_ntoa(
7440 attr->mp_nexthop_global_in));
7441 else
7442 vty_out(vty, "%-16s",
7443 inet_ntoa(
7444 attr->mp_nexthop_global_in));
7445 } else {
7446 if (json)
7447 json_object_string_add(
7448 json_out, "nexthop",
7449 inet_ntoa(attr->nexthop));
7450 else
7451 vty_out(vty, "%-16s",
7452 inet_ntoa(attr->nexthop));
7453 }
7454 } else if (((p->family == AF_INET6)
7455 && ((safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP)))
b03b8898 7456 || (safi == SAFI_EVPN
d62a17ae 7457 && BGP_ATTR_NEXTHOP_AFI_IP6(attr))
7458 || (BGP_ATTR_NEXTHOP_AFI_IP6(attr))) {
ff44f570
DS		 7459 char buf_a[512];
7460 char buf_b[512];
d62a17ae 7461 char buf_c[BUFSIZ];
7462 if (attr->mp_nexthop_len
7463 == BGP_ATTR_NHLEN_IPV6_GLOBAL) {
7464 if (json)
7465 json_object_string_add(
7466 json_out, "mpNexthopGlobalIn",
7467 inet_ntop(
7468 AF_INET6,
7469 &attr->mp_nexthop_global,
11f9b450 7470 buf_a, sizeof(buf_a)));
d62a17ae 7471 else
7472 vty_out(vty, "%s",
7473 inet_ntop(
7474 AF_INET6,
7475 &attr->mp_nexthop_global,
11f9b450 7476 buf_a, sizeof(buf_a)));
d62a17ae 7477 } else if (attr->mp_nexthop_len
7478 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) {
7479 if (json) {
7480 inet_ntop(AF_INET6,
7481 &attr->mp_nexthop_global,
11f9b450 7482 buf_a, sizeof(buf_a));
d62a17ae 7483 inet_ntop(AF_INET6,
7484 &attr->mp_nexthop_local,
11f9b450 7485 buf_b, sizeof(buf_b));
d62a17ae 7486 sprintf(buf_c, "%s(%s)", buf_a, buf_b);
7487 json_object_string_add(
7488 json_out,
7489 "mpNexthopGlobalLocal", buf_c);
7490 } else
7491 vty_out(vty, "%s(%s)",
7492 inet_ntop(
7493 AF_INET6,
7494 &attr->mp_nexthop_global,
11f9b450 7495 buf_a, sizeof(buf_a)),
d62a17ae 7496 inet_ntop(
7497 AF_INET6,
7498 &attr->mp_nexthop_local,
11f9b450 7499 buf_b, sizeof(buf_b)));
d62a17ae 7500 }
7501 }
7502 }
7503
9b6d8fcf 7504 label = decode_label(&path->extra->label[0]);
d62a17ae 7505
7506 if (bgp_is_valid_label(&label)) {
7507 if (json) {
7508 json_object_int_add(json_out, "notag", label);
7509 json_object_array_add(json, json_out);
7510 } else {
7511 vty_out(vty, "notag/%d", label);
7512 vty_out(vty, "\n");
7513 }
7514 }
7515}
718e3744 7516
d62a17ae 7517void route_vty_out_overlay(struct vty *vty, struct prefix *p,
9b6d8fcf 7518 struct bgp_path_info *path, int display,
d62a17ae 7519 json_object *json_paths)
718e3744 7520{
d62a17ae 7521 struct attr *attr;
7522 char buf[BUFSIZ];
7523 json_object *json_path = NULL;
784d3a42 7524
d62a17ae 7525 if (json_paths)
7526 json_path = json_object_new_object();
856ca177 7527
9b6d8fcf 7528 if (!path->extra)
d62a17ae 7529 return;
718e3744 7530
d62a17ae 7531 /* short status lead text */
9b6d8fcf 7532 route_vty_short_status_out(vty, path, json_path);
856ca177 7533
d62a17ae 7534 /* print prefix and mask */
7535 if (!display)
9c92b5f7 7536 route_vty_out_route(p, vty, NULL);
d62a17ae 7537 else
7538 vty_out(vty, "%*s", 17, " ");
7539
7540 /* Print attribute */
9b6d8fcf 7541 attr = path->attr;
d62a17ae 7542 if (attr) {
7543 char buf1[BUFSIZ];
7544 int af = NEXTHOP_FAMILY(attr->mp_nexthop_len);
7545
7546 switch (af) {
7547 case AF_INET:
7548 vty_out(vty, "%-16s",
7549 inet_ntop(af, &attr->mp_nexthop_global_in, buf,
7550 BUFSIZ));
7551 break;
7552 case AF_INET6:
7553 vty_out(vty, "%s(%s)",
7554 inet_ntop(af, &attr->mp_nexthop_global, buf,
7555 BUFSIZ),
7556 inet_ntop(af, &attr->mp_nexthop_local, buf1,
7557 BUFSIZ));
7558 break;
7559 default:
7560 vty_out(vty, "?");
7561 }
988258b4
QY		 7562
7563 char *str = esi2str(&(attr->evpn_overlay.eth_s_id));
7564
7565 vty_out(vty, "%s", str);
7566 XFREE(MTYPE_TMP, str);
7567
3714a385 7568 if (is_evpn_prefix_ipaddr_v4((struct prefix_evpn *)p)) {
988258b4
QY		 7569 vty_out(vty, "/%s",
7570 inet_ntoa(attr->evpn_overlay.gw_ip.ipv4));
3714a385 7571 } else if (is_evpn_prefix_ipaddr_v6((struct prefix_evpn *)p)) {
988258b4
QY		 7572 vty_out(vty, "/%s",
7573 inet_ntop(AF_INET6,
7574 &(attr->evpn_overlay.gw_ip.ipv6), buf,
7575 BUFSIZ));
7576 }
7577 if (attr->ecommunity) {
7578 char *mac = NULL;
7579 struct ecommunity_val *routermac = ecommunity_lookup(
7580 attr->ecommunity, ECOMMUNITY_ENCODE_EVPN,
7581 ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC);
7582 if (routermac)
7583 mac = ecom_mac2str((char *)routermac->val);
7584 if (mac) {
7585 vty_out(vty, "/%s", (char *)mac);
7586 XFREE(MTYPE_TMP, mac);
7587 }
7588 }
7589 vty_out(vty, "\n");
718e3744 7590 }
718e3744 7591
d62a17ae 7592}
718e3744 7593
d62a17ae 7594/* dampening route */
7595static void damp_route_vty_out(struct vty *vty, struct prefix *p,
9b6d8fcf 7596 struct bgp_path_info *path, int display,
4b7e6066 7597 safi_t safi, bool use_json, json_object *json)
d62a17ae 7598{
7599 struct attr *attr;
7600 int len;
7601 char timebuf[BGP_UPTIME_LEN];
7602
7603 /* short status lead text */
9b6d8fcf 7604 route_vty_short_status_out(vty, path, json);
d62a17ae 7605
7606 /* print prefix and mask */
7607 if (!use_json) {
7608 if (!display)
9c92b5f7 7609 route_vty_out_route(p, vty, NULL);
d62a17ae 7610 else
7611 vty_out(vty, "%*s", 17, " ");
7612 }
7613
9b6d8fcf 7614 len = vty_out(vty, "%s", path->peer->host);
d62a17ae 7615 len = 17 - len;
7616 if (len < 1) {
7617 if (!use_json)
7618 vty_out(vty, "\n%*s", 34, " ");
7619 } else {
7620 if (use_json)
7621 json_object_int_add(json, "peerHost", len);
7622 else
7623 vty_out(vty, "%*s", len, " ");
7624 }
7625
7626 if (use_json)
9b6d8fcf 7627 bgp_damp_reuse_time_vty(vty, path, timebuf, BGP_UPTIME_LEN,
d62a17ae 7628 use_json, json);
7629 else
9b6d8fcf
DS		 7630 vty_out(vty, "%s ",
7631 bgp_damp_reuse_time_vty(vty, path, timebuf,
7632 BGP_UPTIME_LEN, use_json,
7633 json));
d62a17ae 7634
7635 /* Print attribute */
9b6d8fcf 7636 attr = path->attr;
d62a17ae 7637 if (attr) {
7638 /* Print aspath */
7639 if (attr->aspath) {
7640 if (use_json)
7641 json_object_string_add(json, "asPath",
7642 attr->aspath->str);
7643 else
7644 aspath_print_vty(vty, "%s", attr->aspath, " ");
7645 }
7646
7647 /* Print origin */
7648 if (use_json)
7649 json_object_string_add(json, "origin",
7650 bgp_origin_str[attr->origin]);
7651 else
7652 vty_out(vty, "%s", bgp_origin_str[attr->origin]);
7653 }
7654 if (!use_json)
7655 vty_out(vty, "\n");
7656}
718e3744 7657
d62a17ae 7658/* flap route */
7659static void flap_route_vty_out(struct vty *vty, struct prefix *p,
9b6d8fcf 7660 struct bgp_path_info *path, int display,
4b7e6066 7661 safi_t safi, bool use_json, json_object *json)
784d3a42 7662{
d62a17ae 7663 struct attr *attr;
7664 struct bgp_damp_info *bdi;
7665 char timebuf[BGP_UPTIME_LEN];
7666 int len;
784d3a42 7667
9b6d8fcf 7668 if (!path->extra)
d62a17ae 7669 return;
784d3a42 7670
9b6d8fcf 7671 bdi = path->extra->damp_info;
784d3a42 7672
d62a17ae 7673 /* short status lead text */
9b6d8fcf 7674 route_vty_short_status_out(vty, path, json);
784d3a42 7675
d62a17ae 7676 /* print prefix and mask */
7677 if (!use_json) {
7678 if (!display)
9c92b5f7 7679 route_vty_out_route(p, vty, NULL);
d62a17ae 7680 else
7681 vty_out(vty, "%*s", 17, " ");
7682 }
784d3a42 7683
9b6d8fcf 7684 len = vty_out(vty, "%s", path->peer->host);
d62a17ae 7685 len = 16 - len;
7686 if (len < 1) {
7687 if (!use_json)
7688 vty_out(vty, "\n%*s", 33, " ");
7689 } else {
7690 if (use_json)
7691 json_object_int_add(json, "peerHost", len);
7692 else
7693 vty_out(vty, "%*s", len, " ");
7694 }
784d3a42 7695
d62a17ae 7696 len = vty_out(vty, "%d", bdi->flap);
7697 len = 5 - len;
7698 if (len < 1) {
7699 if (!use_json)
7700 vty_out(vty, " ");
7701 } else {
7702 if (use_json)
7703 json_object_int_add(json, "bdiFlap", len);
7704 else
7705 vty_out(vty, "%*s", len, " ");
7706 }
7707
7708 if (use_json)
7709 peer_uptime(bdi->start_time, timebuf, BGP_UPTIME_LEN, use_json,
7710 json);
7711 else
996c9314
LB		 7712 vty_out(vty, "%s ", peer_uptime(bdi->start_time, timebuf,
7713 BGP_UPTIME_LEN, 0, NULL));
d62a17ae 7714
9b6d8fcf
DS		 7715 if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED)
7716 && !CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) {
d62a17ae 7717 if (use_json)
9b6d8fcf 7718 bgp_damp_reuse_time_vty(vty, path, timebuf,
d62a17ae 7719 BGP_UPTIME_LEN, use_json, json);
7720 else
7721 vty_out(vty, "%s ",
9b6d8fcf 7722 bgp_damp_reuse_time_vty(vty, path, timebuf,
d62a17ae 7723 BGP_UPTIME_LEN,
7724 use_json, json));
7725 } else {
7726 if (!use_json)
7727 vty_out(vty, "%*s ", 8, " ");
7728 }
7729
7730 /* Print attribute */
9b6d8fcf 7731 attr = path->attr;
d62a17ae 7732 if (attr) {
7733 /* Print aspath */
7734 if (attr->aspath) {
7735 if (use_json)
7736 json_object_string_add(json, "asPath",
7737 attr->aspath->str);
7738 else
7739 aspath_print_vty(vty, "%s", attr->aspath, " ");
7740 }
7741
7742 /* Print origin */
7743 if (use_json)
7744 json_object_string_add(json, "origin",
7745 bgp_origin_str[attr->origin]);
7746 else
7747 vty_out(vty, "%s", bgp_origin_str[attr->origin]);
7748 }
7749 if (!use_json)
7750 vty_out(vty, "\n");
7751}
7752
7753static void route_vty_out_advertised_to(struct vty *vty, struct peer *peer,
7754 int *first, const char *header,
7755 json_object *json_adv_to)
7756{
7757 char buf1[INET6_ADDRSTRLEN];
7758 json_object *json_peer = NULL;
7759
7760 if (json_adv_to) {
7761 /* 'advertised-to' is a dictionary of peers we have advertised
7762 * this
7763 * prefix too. The key is the peer's IP or swpX, the value is
7764 * the
7765 * hostname if we know it and "" if not.
7766 */
7767 json_peer = json_object_new_object();
7768
7769 if (peer->hostname)
7770 json_object_string_add(json_peer, "hostname",
7771 peer->hostname);
7772
7773 if (peer->conf_if)
7774 json_object_object_add(json_adv_to, peer->conf_if,
7775 json_peer);
7776 else
7777 json_object_object_add(
7778 json_adv_to,
7779 sockunion2str(&peer->su, buf1, SU_ADDRSTRLEN),
7780 json_peer);
7781 } else {
7782 if (*first) {
7783 vty_out(vty, "%s", header);
7784 *first = 0;
7785 }
7786
7787 if (peer->hostname
7788 && bgp_flag_check(peer->bgp, BGP_FLAG_SHOW_HOSTNAME)) {
7789 if (peer->conf_if)
7790 vty_out(vty, " %s(%s)", peer->hostname,
7791 peer->conf_if);
7792 else
7793 vty_out(vty, " %s(%s)", peer->hostname,
7794 sockunion2str(&peer->su, buf1,
7795 SU_ADDRSTRLEN));
7796 } else {
7797 if (peer->conf_if)
7798 vty_out(vty, " %s", peer->conf_if);
7799 else
7800 vty_out(vty, " %s",
7801 sockunion2str(&peer->su, buf1,
7802 SU_ADDRSTRLEN));
7803 }
7804 }
784d3a42
PG		 7805}
7806
dcc68b5e
MS		 7807static void route_vty_out_tx_ids(struct vty *vty,
7808 struct bgp_addpath_info_data *d)
7809{
7810 int i;
7811
7812 for (i = 0; i < BGP_ADDPATH_MAX; i++) {
7813 vty_out(vty, "TX-%s %u%s", bgp_addpath_names(i)->human_name,
7814 d->addpath_tx_id[i],
7815 i < BGP_ADDPATH_MAX - 1 ? " " : "\n");
7816 }
7817}
7818
d62a17ae 7819void route_vty_out_detail(struct vty *vty, struct bgp *bgp, struct prefix *p,
9b6d8fcf 7820 struct bgp_path_info *path, afi_t afi, safi_t safi,
d62a17ae 7821 json_object *json_paths)
7822{
7823 char buf[INET6_ADDRSTRLEN];
7824 char buf1[BUFSIZ];
d62a17ae 7825 char buf2[EVPN_ROUTE_STRLEN];
d62a17ae 7826 struct attr *attr;
7827 int sockunion_vty_out(struct vty *, union sockunion *);
7828 time_t tbuf;
7829 json_object *json_bestpath = NULL;
7830 json_object *json_cluster_list = NULL;
7831 json_object *json_cluster_list_list = NULL;
7832 json_object *json_ext_community = NULL;
7833 json_object *json_last_update = NULL;
7fd077aa 7834 json_object *json_pmsi = NULL;
d62a17ae 7835 json_object *json_nexthop_global = NULL;
7836 json_object *json_nexthop_ll = NULL;
7837 json_object *json_nexthops = NULL;
7838 json_object *json_path = NULL;
7839 json_object *json_peer = NULL;
7840 json_object *json_string = NULL;
7841 json_object *json_adv_to = NULL;
7842 int first = 0;
7843 struct listnode *node, *nnode;
7844 struct peer *peer;
7845 int addpath_capable;
7846 int has_adj;
7847 unsigned int first_as;
1defdda8 7848 bool nexthop_self =
9b6d8fcf 7849 CHECK_FLAG(path->flags, BGP_PATH_ANNC_NH_SELF) ? true : false;
dcc68b5e 7850 int i;
d62a17ae 7851
7852 if (json_paths) {
7853 json_path = json_object_new_object();
7854 json_peer = json_object_new_object();
7855 json_nexthop_global = json_object_new_object();
7856 }
7857
d62a17ae 7858 if (!json_paths && safi == SAFI_EVPN) {
b57ba6d2 7859 char tag_buf[30];
d62a17ae 7860
7861 bgp_evpn_route2str((struct prefix_evpn *)p, buf2, sizeof(buf2));
7862 vty_out(vty, " Route %s", buf2);
7863 tag_buf[0] = '\0';
9b6d8fcf
DS		 7864 if (path->extra && path->extra->num_labels) {
7865 bgp_evpn_label2str(path->extra->label,
7866 path->extra->num_labels, tag_buf,
a4d82a8a 7867 sizeof(tag_buf));
d62a17ae 7868 vty_out(vty, " VNI %s", tag_buf);
7869 }
7870 vty_out(vty, "\n");
9b6d8fcf 7871 if (path->extra && path->extra->parent) {
4b7e6066 7872 struct bgp_path_info *parent_ri;
d62a17ae 7873 struct bgp_node *rn, *prn;
7874
9b6d8fcf 7875 parent_ri = (struct bgp_path_info *)path->extra->parent;
d62a17ae 7876 rn = parent_ri->net;
7877 if (rn && rn->prn) {
7878 prn = rn->prn;
7879 vty_out(vty, " Imported from %s:%s\n",
7880 prefix_rd2str(
7881 (struct prefix_rd *)&prn->p,
06b9f471 7882 buf1, sizeof(buf1)),
d62a17ae 7883 buf2);
7884 }
7885 }
7886 }
d62a17ae 7887
9b6d8fcf 7888 attr = path->attr;
d62a17ae 7889
7890 if (attr) {
7891 /* Line1 display AS-path, Aggregator */
7892 if (attr->aspath) {
7893 if (json_paths) {
68e1a55b
DS		 7894 if (!attr->aspath->json)
7895 aspath_str_update(attr->aspath, true);
d62a17ae 7896 json_object_lock(attr->aspath->json);
7897 json_object_object_add(json_path, "aspath",
7898 attr->aspath->json);
7899 } else {
7900 if (attr->aspath->segments)
7901 aspath_print_vty(vty, " %s",
7902 attr->aspath, "");
7903 else
7904 vty_out(vty, " Local");
7905 }
7906 }
7907
9b6d8fcf 7908 if (CHECK_FLAG(path->flags, BGP_PATH_REMOVED)) {
d62a17ae 7909 if (json_paths)
7910 json_object_boolean_true_add(json_path,
7911 "removed");
7912 else
7913 vty_out(vty, ", (removed)");
7914 }
7915
9b6d8fcf 7916 if (CHECK_FLAG(path->flags, BGP_PATH_STALE)) {
d62a17ae 7917 if (json_paths)
7918 json_object_boolean_true_add(json_path,
7919 "stale");
7920 else
7921 vty_out(vty, ", (stale)");
7922 }
7923
7924 if (CHECK_FLAG(attr->flag,
7925 ATTR_FLAG_BIT(BGP_ATTR_AGGREGATOR))) {
7926 if (json_paths) {
7927 json_object_int_add(json_path, "aggregatorAs",
7928 attr->aggregator_as);
7929 json_object_string_add(
7930 json_path, "aggregatorId",
7931 inet_ntoa(attr->aggregator_addr));
7932 } else {
7933 vty_out(vty, ", (aggregated by %u %s)",
7934 attr->aggregator_as,
7935 inet_ntoa(attr->aggregator_addr));
7936 }
7937 }
7938
9b6d8fcf 7939 if (CHECK_FLAG(path->peer->af_flags[afi][safi],
d62a17ae 7940 PEER_FLAG_REFLECTOR_CLIENT)) {
7941 if (json_paths)
7942 json_object_boolean_true_add(
7943 json_path, "rxedFromRrClient");
7944 else
7945 vty_out(vty, ", (Received from a RR-client)");
7946 }
7947
9b6d8fcf 7948 if (CHECK_FLAG(path->peer->af_flags[afi][safi],
d62a17ae 7949 PEER_FLAG_RSERVER_CLIENT)) {
7950 if (json_paths)
7951 json_object_boolean_true_add(
7952 json_path, "rxedFromRsClient");
7953 else
7954 vty_out(vty, ", (Received from a RS-client)");
7955 }
7956
9b6d8fcf 7957 if (CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) {
d62a17ae 7958 if (json_paths)
7959 json_object_boolean_true_add(
7960 json_path, "dampeningHistoryEntry");
7961 else
7962 vty_out(vty, ", (history entry)");
9b6d8fcf 7963 } else if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED)) {
d62a17ae 7964 if (json_paths)
7965 json_object_boolean_true_add(
7966 json_path, "dampeningSuppressed");
7967 else
7968 vty_out(vty, ", (suppressed due to dampening)");
7969 }
7970
7971 if (!json_paths)
7972 vty_out(vty, "\n");
7973
7974 /* Line2 display Next-hop, Neighbor, Router-id */
7975 /* Display the nexthop */
a4d82a8a
PZ		 7976 if ((p->family == AF_INET || p->family == AF_ETHERNET
7977 || p->family == AF_EVPN)
d62a17ae 7978 && (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP
7979 || safi == SAFI_EVPN
7980 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr))) {
7981 if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP
7982 || safi == SAFI_EVPN) {
7983 if (json_paths)
7984 json_object_string_add(
7985 json_nexthop_global, "ip",
7986 inet_ntoa(
7987 attr->mp_nexthop_global_in));
7988 else
7989 vty_out(vty, " %s",
7990 inet_ntoa(
7991 attr->mp_nexthop_global_in));
7992 } else {
7993 if (json_paths)
7994 json_object_string_add(
7995 json_nexthop_global, "ip",
7996 inet_ntoa(attr->nexthop));
7997 else
7998 vty_out(vty, " %s",
7999 inet_ntoa(attr->nexthop));
8000 }
8001
8002 if (json_paths)
8003 json_object_string_add(json_nexthop_global,
8004 "afi", "ipv4");
8005 } else {
8006 if (json_paths) {
8007 json_object_string_add(
8008 json_nexthop_global, "ip",
8009 inet_ntop(AF_INET6,
8010 &attr->mp_nexthop_global, buf,
8011 INET6_ADDRSTRLEN));
8012 json_object_string_add(json_nexthop_global,
8013 "afi", "ipv6");
8014 json_object_string_add(json_nexthop_global,
8015 "scope", "global");
8016 } else {
8017 vty_out(vty, " %s",
8018 inet_ntop(AF_INET6,
8019 &attr->mp_nexthop_global, buf,
8020 INET6_ADDRSTRLEN));
8021 }
8022 }
8023
8024 /* Display the IGP cost or 'inaccessible' */
9b6d8fcf 8025 if (!CHECK_FLAG(path->flags, BGP_PATH_VALID)) {
d62a17ae 8026 if (json_paths)
8027 json_object_boolean_false_add(
8028 json_nexthop_global, "accessible");
8029 else
8030 vty_out(vty, " (inaccessible)");
8031 } else {
9b6d8fcf 8032 if (path->extra && path->extra->igpmetric) {
d62a17ae 8033 if (json_paths)
8034 json_object_int_add(
8035 json_nexthop_global, "metric",
9b6d8fcf 8036 path->extra->igpmetric);
d62a17ae 8037 else
8038 vty_out(vty, " (metric %u)",
9b6d8fcf 8039 path->extra->igpmetric);
d62a17ae 8040 }
8041
8042 /* IGP cost is 0, display this only for json */
8043 else {
8044 if (json_paths)
8045 json_object_int_add(json_nexthop_global,
8046 "metric", 0);
8047 }
8048
8049 if (json_paths)
8050 json_object_boolean_true_add(
8051 json_nexthop_global, "accessible");
8052 }
8053
8054 /* Display peer "from" output */
8055 /* This path was originated locally */
9b6d8fcf 8056 if (path->peer == bgp->peer_self) {
d62a17ae 8057
8058 if (safi == SAFI_EVPN
8059 || (p->family == AF_INET
8060 && !BGP_ATTR_NEXTHOP_AFI_IP6(attr))) {
8061 if (json_paths)
8062 json_object_string_add(
8063 json_peer, "peerId", "0.0.0.0");
8064 else
8065 vty_out(vty, " from 0.0.0.0 ");
8066 } else {
8067 if (json_paths)
8068 json_object_string_add(json_peer,
8069 "peerId", "::");
8070 else
8071 vty_out(vty, " from :: ");
8072 }
8073
8074 if (json_paths)
8075 json_object_string_add(
8076 json_peer, "routerId",
8077 inet_ntoa(bgp->router_id));
8078 else
8079 vty_out(vty, "(%s)", inet_ntoa(bgp->router_id));
8080 }
8081
8082 /* We RXed this path from one of our peers */
8083 else {
8084
8085 if (json_paths) {
8086 json_object_string_add(
8087 json_peer, "peerId",
9b6d8fcf 8088 sockunion2str(&path->peer->su, buf,
d62a17ae 8089 SU_ADDRSTRLEN));
8090 json_object_string_add(
8091 json_peer, "routerId",
8092 inet_ntop(AF_INET,
9b6d8fcf 8093 &path->peer->remote_id, buf1,
06b9f471 8094 sizeof(buf1)));
d62a17ae 8095
9b6d8fcf 8096 if (path->peer->hostname)
d62a17ae 8097 json_object_string_add(
8098 json_peer, "hostname",
9b6d8fcf 8099 path->peer->hostname);
d62a17ae 8100
9b6d8fcf 8101 if (path->peer->domainname)
d62a17ae 8102 json_object_string_add(
8103 json_peer, "domainname",
9b6d8fcf 8104 path->peer->domainname);
d62a17ae 8105
9b6d8fcf 8106 if (path->peer->conf_if)
d62a17ae 8107 json_object_string_add(
8108 json_peer, "interface",
9b6d8fcf 8109 path->peer->conf_if);
d62a17ae 8110 } else {
9b6d8fcf
DS		 8111 if (path->peer->conf_if) {
8112 if (path->peer->hostname
d62a17ae 8113 && bgp_flag_check(
9b6d8fcf 8114 path->peer->bgp,
d62a17ae 8115 BGP_FLAG_SHOW_HOSTNAME))
8116 vty_out(vty, " from %s(%s)",
9b6d8fcf
DS		 8117 path->peer->hostname,
8118 path->peer->conf_if);
d62a17ae 8119 else
8120 vty_out(vty, " from %s",
9b6d8fcf 8121 path->peer->conf_if);
d62a17ae 8122 } else {
9b6d8fcf 8123 if (path->peer->hostname
d62a17ae 8124 && bgp_flag_check(
9b6d8fcf 8125 path->peer->bgp,
d62a17ae 8126 BGP_FLAG_SHOW_HOSTNAME))
8127 vty_out(vty, " from %s(%s)",
9b6d8fcf
DS		 8128 path->peer->hostname,
8129 path->peer->host);
d62a17ae 8130 else
8131 vty_out(vty, " from %s",
8132 sockunion2str(
9b6d8fcf 8133 &path->peer->su,
d62a17ae 8134 buf,
8135 SU_ADDRSTRLEN));
8136 }
8137
8138 if (attr->flag
8139 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID))
8140 vty_out(vty, " (%s)",
8141 inet_ntoa(attr->originator_id));
8142 else
8143 vty_out(vty, " (%s)",
8144 inet_ntop(
8145 AF_INET,
9b6d8fcf 8146 &path->peer->remote_id,
06b9f471 8147 buf1, sizeof(buf1)));
d62a17ae 8148 }
8149 }
8150
9df8b37c
PZ		 8151 /*
8152 * Note when vrfid of nexthop is different from that of prefix
8153 */
9b6d8fcf
DS		 8154 if (path->extra && path->extra->bgp_orig) {
8155 vrf_id_t nexthop_vrfid = path->extra->bgp_orig->vrf_id;
9df8b37c
PZ		 8156
8157 if (json_paths) {
8158 const char *vn;
8159
9b6d8fcf
DS		 8160 if (path->extra->bgp_orig->inst_type
8161 == BGP_INSTANCE_TYPE_DEFAULT)
9df8b37c 8162
03a6facf 8163 vn = VRF_DEFAULT_NAME;
9df8b37c 8164 else
9b6d8fcf 8165 vn = path->extra->bgp_orig->name;
9df8b37c
PZ		 8166
8167 json_object_string_add(json_path, "nhVrfName",
8168 vn);
8169
8170 if (nexthop_vrfid == VRF_UNKNOWN) {
8171 json_object_int_add(json_path,
8172 "nhVrfId", -1);
8173 } else {
8174 json_object_int_add(json_path,
8175 "nhVrfId", (int)nexthop_vrfid);
8176 }
8177 } else {
8178 if (nexthop_vrfid == VRF_UNKNOWN)
8179 vty_out(vty, " vrf ?");
8180 else
8181 vty_out(vty, " vrf %u", nexthop_vrfid);
8182 }
8183 }
8184
8185 if (nexthop_self) {
8186 if (json_paths) {
8187 json_object_boolean_true_add(json_path,
8188 "announceNexthopSelf");
8189 } else {
8190 vty_out(vty, " announce-nh-self");
8191 }
8192 }
8193
d62a17ae 8194 if (!json_paths)
8195 vty_out(vty, "\n");
8196
8197 /* display the link-local nexthop */
8198 if (attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) {
8199 if (json_paths) {
8200 json_nexthop_ll = json_object_new_object();
8201 json_object_string_add(
8202 json_nexthop_ll, "ip",
8203 inet_ntop(AF_INET6,
8204 &attr->mp_nexthop_local, buf,
8205 INET6_ADDRSTRLEN));
8206 json_object_string_add(json_nexthop_ll, "afi",
8207 "ipv6");
8208 json_object_string_add(json_nexthop_ll, "scope",
8209 "link-local");
8210
8211 json_object_boolean_true_add(json_nexthop_ll,
8212 "accessible");
8213
8214 if (!attr->mp_nexthop_prefer_global)
8215 json_object_boolean_true_add(
8216 json_nexthop_ll, "used");
8217 else
8218 json_object_boolean_true_add(
8219 json_nexthop_global, "used");
8220 } else {
8221 vty_out(vty, " (%s) %s\n",
8222 inet_ntop(AF_INET6,
8223 &attr->mp_nexthop_local, buf,
8224 INET6_ADDRSTRLEN),
8225 attr->mp_nexthop_prefer_global
8226 ? "(prefer-global)"
8227 : "(used)");
8228 }
8229 }
8230 /* If we do not have a link-local nexthop then we must flag the
8231 global as "used" */
8232 else {
8233 if (json_paths)
8234 json_object_boolean_true_add(
8235 json_nexthop_global, "used");
8236 }
718e3744 8237
d62a17ae 8238 /* Line 3 display Origin, Med, Locpref, Weight, Tag, valid,
8239 * Int/Ext/Local, Atomic, best */
8240 if (json_paths)
8241 json_object_string_add(
8242 json_path, "origin",
8243 bgp_origin_long_str[attr->origin]);
8244 else
8245 vty_out(vty, " Origin %s",
8246 bgp_origin_long_str[attr->origin]);
8247
8248 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)) {
50e05855
AD		 8249 if (json_paths) {
8250
8251 /*
8252 * Adding "metric" field to match with
8253 * corresponding CLI. "med" will be
8254 * deprecated in future.
8255 */
d62a17ae 8256 json_object_int_add(json_path, "med",
8257 attr->med);
50e05855
AD		 8258 json_object_int_add(json_path, "metric",
8259 attr->med);
8260 } else
d62a17ae 8261 vty_out(vty, ", metric %u", attr->med);
8262 }
718e3744 8263
d62a17ae 8264 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)) {
8265 if (json_paths)
8266 json_object_int_add(json_path, "localpref",
8267 attr->local_pref);
8268 else
8269 vty_out(vty, ", localpref %u",
8270 attr->local_pref);
d62a17ae 8271 }
718e3744 8272
d62a17ae 8273 if (attr->weight != 0) {
8274 if (json_paths)
8275 json_object_int_add(json_path, "weight",
8276 attr->weight);
8277 else
8278 vty_out(vty, ", weight %u", attr->weight);
8279 }
718e3744 8280
d62a17ae 8281 if (attr->tag != 0) {
8282 if (json_paths)
8283 json_object_int_add(json_path, "tag",
8284 attr->tag);
8285 else
8286 vty_out(vty, ", tag %" ROUTE_TAG_PRI,
8287 attr->tag);
8288 }
718e3744 8289
9b6d8fcf 8290 if (!CHECK_FLAG(path->flags, BGP_PATH_VALID)) {
d62a17ae 8291 if (json_paths)
8292 json_object_boolean_false_add(json_path,
8293 "valid");
8294 else
8295 vty_out(vty, ", invalid");
9b6d8fcf 8296 } else if (!CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) {
d62a17ae 8297 if (json_paths)
8298 json_object_boolean_true_add(json_path,
8299 "valid");
8300 else
8301 vty_out(vty, ", valid");
8302 }
718e3744 8303
9b6d8fcf
DS		 8304 if (path->peer != bgp->peer_self) {
8305 if (path->peer->as == path->peer->local_as) {
d62a17ae 8306 if (CHECK_FLAG(bgp->config,
8307 BGP_CONFIG_CONFEDERATION)) {
8308 if (json_paths)
8309 json_object_string_add(
8310 json_peer, "type",
8311 "confed-internal");
8312 else
8313 vty_out(vty,
8314 ", confed-internal");
8315 } else {
8316 if (json_paths)
8317 json_object_string_add(
8318 json_peer, "type",
8319 "internal");
8320 else
8321 vty_out(vty, ", internal");
8322 }
8323 } else {
8324 if (bgp_confederation_peers_check(
9b6d8fcf 8325 bgp, path->peer->as)) {
d62a17ae 8326 if (json_paths)
8327 json_object_string_add(
8328 json_peer, "type",
8329 "confed-external");
8330 else
8331 vty_out(vty,
8332 ", confed-external");
8333 } else {
8334 if (json_paths)
8335 json_object_string_add(
8336 json_peer, "type",
8337 "external");
8338 else
8339 vty_out(vty, ", external");
8340 }
8341 }
9b6d8fcf 8342 } else if (path->sub_type == BGP_ROUTE_AGGREGATE) {
d62a17ae 8343 if (json_paths) {
8344 json_object_boolean_true_add(json_path,
8345 "aggregated");
8346 json_object_boolean_true_add(json_path,
8347 "local");
8348 } else {
8349 vty_out(vty, ", aggregated, local");
8350 }
9b6d8fcf 8351 } else if (path->type != ZEBRA_ROUTE_BGP) {
d62a17ae 8352 if (json_paths)
8353 json_object_boolean_true_add(json_path,
8354 "sourced");
8355 else
8356 vty_out(vty, ", sourced");
8357 } else {
8358 if (json_paths) {
8359 json_object_boolean_true_add(json_path,
8360 "sourced");
8361 json_object_boolean_true_add(json_path,
8362 "local");
8363 } else {
8364 vty_out(vty, ", sourced, local");
8365 }
8366 }
718e3744 8367
d62a17ae 8368 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE)) {
8369 if (json_paths)
8370 json_object_boolean_true_add(json_path,
8371 "atomicAggregate");
8372 else
8373 vty_out(vty, ", atomic-aggregate");
8374 }
718e3744 8375
9b6d8fcf
DS		 8376 if (CHECK_FLAG(path->flags, BGP_PATH_MULTIPATH)
8377 || (CHECK_FLAG(path->flags, BGP_PATH_SELECTED)
8378 && bgp_path_info_mpath_count(path))) {
d62a17ae 8379 if (json_paths)
8380 json_object_boolean_true_add(json_path,
8381 "multipath");
8382 else
8383 vty_out(vty, ", multipath");
8384 }
856ca177 8385
d62a17ae 8386 // Mark the bestpath(s)
9b6d8fcf 8387 if (CHECK_FLAG(path->flags, BGP_PATH_DMED_SELECTED)) {
d62a17ae 8388 first_as = aspath_get_first_as(attr->aspath);
8389
8390 if (json_paths) {
8391 if (!json_bestpath)
8392 json_bestpath =
8393 json_object_new_object();
8394 json_object_int_add(json_bestpath,
8395 "bestpathFromAs", first_as);
8396 } else {
8397 if (first_as)
fb2b0934 8398 vty_out(vty, ", bestpath-from-AS %u",
d62a17ae 8399 first_as);
8400 else
8401 vty_out(vty,
8402 ", bestpath-from-AS Local");
8403 }
8404 }
718e3744 8405
9b6d8fcf 8406 if (CHECK_FLAG(path->flags, BGP_PATH_SELECTED)) {
d62a17ae 8407 if (json_paths) {
8408 if (!json_bestpath)
8409 json_bestpath =
8410 json_object_new_object();
8411 json_object_boolean_true_add(json_bestpath,
8412 "overall");
8413 } else
8414 vty_out(vty, ", best");
8415 }
718e3744 8416
d62a17ae 8417 if (json_bestpath)
8418 json_object_object_add(json_path, "bestpath",
8419 json_bestpath);
8420
8421 if (!json_paths)
8422 vty_out(vty, "\n");
8423
8424 /* Line 4 display Community */
8425 if (attr->community) {
8426 if (json_paths) {
a69ea8ae 8427 if (!attr->community->json)
a4d82a8a 8428 community_str(attr->community, true);
d62a17ae 8429 json_object_lock(attr->community->json);
8430 json_object_object_add(json_path, "community",
8431 attr->community->json);
8432 } else {
8433 vty_out(vty, " Community: %s\n",
8434 attr->community->str);
8435 }
8436 }
718e3744 8437
d62a17ae 8438 /* Line 5 display Extended-community */
8439 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)) {
8440 if (json_paths) {
8441 json_ext_community = json_object_new_object();
8442 json_object_string_add(json_ext_community,
8443 "string",
8444 attr->ecommunity->str);
8445 json_object_object_add(json_path,
8446 "extendedCommunity",
8447 json_ext_community);
8448 } else {
8449 vty_out(vty, " Extended Community: %s\n",
8450 attr->ecommunity->str);
8451 }
8452 }
adbac85e 8453
d62a17ae 8454 /* Line 6 display Large community */
b96879c0
DS		 8455 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES)) {
8456 if (json_paths) {
8d9b8ed9
PM		 8457 if (!attr->lcommunity->json)
8458 lcommunity_str(attr->lcommunity, true);
8459 json_object_lock(attr->lcommunity->json);
b96879c0
DS		 8460 json_object_object_add(json_path,
8461 "largeCommunity",
8d9b8ed9 8462 attr->lcommunity->json);
b96879c0
DS		 8463 } else {
8464 vty_out(vty, " Large Community: %s\n",
8465 attr->lcommunity->str);
8466 }
8467 }
d62a17ae 8468
8469 /* Line 7 display Originator, Cluster-id */
8470 if ((attr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID))
8471 || (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST))) {
8472 if (attr->flag
8473 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)) {
8474 if (json_paths)
8475 json_object_string_add(
8476 json_path, "originatorId",
8477 inet_ntoa(attr->originator_id));
8478 else
8479 vty_out(vty, " Originator: %s",
8480 inet_ntoa(attr->originator_id));
8481 }
8482
8483 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST)) {
8484 int i;
8485
8486 if (json_paths) {
8487 json_cluster_list =
8488 json_object_new_object();
8489 json_cluster_list_list =
8490 json_object_new_array();
8491
8492 for (i = 0;
8493 i < attr->cluster->length / 4;
8494 i++) {
8495 json_string = json_object_new_string(
8496 inet_ntoa(
8497 attr->cluster->list
8498 [i]));
8499 json_object_array_add(
8500 json_cluster_list_list,
8501 json_string);
8502 }
8503
8504 /* struct cluster_list does not have
8505 "str" variable like
8506 * aspath and community do. Add this
8507 someday if someone
8508 * asks for it.
8509 json_object_string_add(json_cluster_list,
8510 "string", attr->cluster->str);
8511 */
8512 json_object_object_add(
8513 json_cluster_list, "list",
8514 json_cluster_list_list);
8515 json_object_object_add(
8516 json_path, "clusterList",
8517 json_cluster_list);
8518 } else {
8519 vty_out(vty, ", Cluster list: ");
8520
8521 for (i = 0;
8522 i < attr->cluster->length / 4;
8523 i++) {
8524 vty_out(vty, "%s ",
8525 inet_ntoa(
8526 attr->cluster->list
8527 [i]));
8528 }
8529 }
8530 }
8531
8532 if (!json_paths)
8533 vty_out(vty, "\n");
8534 }
adbac85e 8535
9b6d8fcf
DS		 8536 if (path->extra && path->extra->damp_info)
8537 bgp_damp_info_vty(vty, path, json_path);
d62a17ae 8538
6a527b2f 8539 /* Remote Label */
9b6d8fcf 8540 if (path->extra && bgp_is_valid_label(&path->extra->label[0])
6a527b2f 8541 && safi != SAFI_EVPN) {
9b6d8fcf 8542 mpls_label_t label = label_pton(&path->extra->label[0]);
121e245d 8543
d62a17ae 8544 if (json_paths)
8545 json_object_int_add(json_path, "remoteLabel",
8546 label);
8547 else
8548 vty_out(vty, " Remote label: %d\n", label);
8549 }
b05a1c8b 8550
d62a17ae 8551 /* Label Index */
8552 if (attr->label_index != BGP_INVALID_LABEL_INDEX) {
8553 if (json_paths)
8554 json_object_int_add(json_path, "labelIndex",
8555 attr->label_index);
8556 else
8557 vty_out(vty, " Label Index: %d\n",
8558 attr->label_index);
8559 }
520d5d76 8560
d62a17ae 8561 /* Line 8 display Addpath IDs */
dcc68b5e
MS		 8562 if (path->addpath_rx_id
8563 || bgp_addpath_info_has_ids(&path->tx_addpath)) {
d62a17ae 8564 if (json_paths) {
8565 json_object_int_add(json_path, "addpathRxId",
9b6d8fcf 8566 path->addpath_rx_id);
dcc68b5e
MS		 8567
8568 /* Keep backwards compatibility with the old API
8569 * by putting TX All's ID in the old field
8570 */
8571 json_object_int_add(
8572 json_path, "addpathTxId",
8573 path->tx_addpath.addpath_tx_id
8574 [BGP_ADDPATH_ALL]);
8575
8576 /* ... but create a specific field for each
8577 * strategy
8578 */
8579 for (i = 0; i < BGP_ADDPATH_MAX; i++) {
8580 json_object_int_add(
8581 json_path,
8582 bgp_addpath_names(i)
8583 ->id_json_name,
8584 path->tx_addpath
8585 .addpath_tx_id[i]);
8586 }
d62a17ae 8587 } else {
dcc68b5e
MS		 8588 vty_out(vty, " AddPath ID: RX %u, ",
8589 path->addpath_rx_id);
8590
8591 route_vty_out_tx_ids(vty, &path->tx_addpath);
d62a17ae 8592 }
8593 }
718e3744 8594
d62a17ae 8595 /* If we used addpath to TX a non-bestpath we need to display
dcc68b5e
MS		 8596 * "Advertised to" on a path-by-path basis
8597 */
8598 if (bgp_addpath_is_addpath_used(&bgp->tx_addpath, afi, safi)) {
d62a17ae 8599 first = 1;
8600
8601 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
8602 addpath_capable =
8603 bgp_addpath_encode_tx(peer, afi, safi);
8604 has_adj = bgp_adj_out_lookup(
dcc68b5e
MS		 8605 peer, path->net,
8606 bgp_addpath_id_for_peer(
8607 peer, afi, safi,
8608 &path->tx_addpath));
d62a17ae 8609
8610 if ((addpath_capable && has_adj)
8611 || (!addpath_capable && has_adj
9b6d8fcf 8612 && CHECK_FLAG(path->flags,
1defdda8 8613 BGP_PATH_SELECTED))) {
d62a17ae 8614 if (json_path && !json_adv_to)
8615 json_adv_to =
8616 json_object_new_object();
8617
8618 route_vty_out_advertised_to(
8619 vty, peer, &first,
8620 " Advertised to:",
8621 json_adv_to);
8622 }
8623 }
8624
8625 if (json_path) {
8626 if (json_adv_to) {
8627 json_object_object_add(json_path,
8628 "advertisedTo",
8629 json_adv_to);
8630 }
8631 } else {
8632 if (!first) {
8633 vty_out(vty, "\n");
8634 }
8635 }
8636 }
b05a1c8b 8637
d62a17ae 8638 /* Line 9 display Uptime */
9b6d8fcf 8639 tbuf = time(NULL) - (bgp_clock() - path->uptime);
d62a17ae 8640 if (json_paths) {
8641 json_last_update = json_object_new_object();
8642 json_object_int_add(json_last_update, "epoch", tbuf);
8643 json_object_string_add(json_last_update, "string",
8644 ctime(&tbuf));
8645 json_object_object_add(json_path, "lastUpdate",
8646 json_last_update);
8647 } else
8648 vty_out(vty, " Last update: %s", ctime(&tbuf));
7fd077aa 8649
8650 /* Line 10 display PMSI tunnel attribute, if present */
8651 if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_PMSI_TUNNEL)) {
b7d08f5a 8652 const char *str = lookup_msg(bgp_pmsi_tnltype_str,
8653 attr->pmsi_tnl_type,
8654 PMSI_TNLTYPE_STR_DEFAULT);
8655
7fd077aa 8656 if (json_paths) {
8657 json_pmsi = json_object_new_object();
b7d08f5a 8658 json_object_string_add(json_pmsi,
8659 "tunnelType", str);
27f28ccc
AK		 8660 json_object_int_add(json_pmsi,
8661 "label",
8662 label2vni(&attr->label));
7fd077aa 8663 json_object_object_add(json_path, "pmsi",
8664 json_pmsi);
8665 } else
27f28ccc
AK		 8666 vty_out(vty,
8667 " PMSI Tunnel Type: %s, label: %d\n",
8668 str, label2vni(&attr->label));
7fd077aa 8669 }
8670
d62a17ae 8671 }
f1aa5d8a 8672
d62a17ae 8673 /* We've constructed the json object for this path, add it to the json
8674 * array of paths
8675 */
8676 if (json_paths) {
8677 if (json_nexthop_global || json_nexthop_ll) {
8678 json_nexthops = json_object_new_array();
f1aa5d8a 8679
d62a17ae 8680 if (json_nexthop_global)
8681 json_object_array_add(json_nexthops,
8682 json_nexthop_global);
f1aa5d8a 8683
d62a17ae 8684 if (json_nexthop_ll)
8685 json_object_array_add(json_nexthops,
8686 json_nexthop_ll);
f1aa5d8a 8687
d62a17ae 8688 json_object_object_add(json_path, "nexthops",
8689 json_nexthops);
8690 }
8691
8692 json_object_object_add(json_path, "peer", json_peer);
8693 json_object_array_add(json_paths, json_path);
8694 } else
8695 vty_out(vty, "\n");
b366b518
BB		 8696}
8697
96ade3ed 8698#define BGP_SHOW_HEADER_CSV "Flags, Network, Next Hop, Metric, LocPrf, Weight, Path"
181039f3
DL		 8699#define BGP_SHOW_DAMP_HEADER " Network From Reuse Path\n"
8700#define BGP_SHOW_FLAP_HEADER " Network From Flaps Duration Reuse Path\n"
718e3744 8701
d62a17ae 8702static int bgp_show_prefix_list(struct vty *vty, struct bgp *bgp,
8703 const char *prefix_list_str, afi_t afi,
8704 safi_t safi, enum bgp_show_type type);
8705static int bgp_show_filter_list(struct vty *vty, struct bgp *bgp,
8706 const char *filter, afi_t afi, safi_t safi,
8707 enum bgp_show_type type);
8708static int bgp_show_route_map(struct vty *vty, struct bgp *bgp,
8709 const char *rmap_str, afi_t afi, safi_t safi,
8710 enum bgp_show_type type);
8711static int bgp_show_community_list(struct vty *vty, struct bgp *bgp,
8712 const char *com, int exact, afi_t afi,
8713 safi_t safi);
8714static int bgp_show_prefix_longer(struct vty *vty, struct bgp *bgp,
8715 const char *prefix, afi_t afi, safi_t safi,
8716 enum bgp_show_type type);
a4d82a8a
PZ		 8717static int bgp_show_regexp(struct vty *vty, struct bgp *bgp, const char *regstr,
8718 afi_t afi, safi_t safi, enum bgp_show_type type);
7f323236
DW		 8719static int bgp_show_community(struct vty *vty, struct bgp *bgp,
8720 const char *comstr, int exact, afi_t afi,
9f049418 8721 safi_t safi, bool use_json);
d62a17ae 8722
1ae44dfc
LB		 8723
8724static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi,
d62a17ae 8725 struct bgp_table *table, enum bgp_show_type type,
9f049418 8726 void *output_arg, bool use_json, char *rd,
a4d82a8a
PZ		 8727 int is_last, unsigned long *output_cum,
8728 unsigned long *total_cum,
9386b588 8729 unsigned long *json_header_depth)
d62a17ae 8730{
40381db7 8731 struct bgp_path_info *pi;
d62a17ae 8732 struct bgp_node *rn;
8733 int header = 1;
8734 int display;
1ae44dfc
LB		 8735 unsigned long output_count = 0;
8736 unsigned long total_count = 0;
d62a17ae 8737 struct prefix *p;
d62a17ae 8738 char buf2[BUFSIZ];
8739 json_object *json_paths = NULL;
8740 int first = 1;
8741
1ae44dfc
LB		 8742 if (output_cum && *output_cum != 0)
8743 header = 0;
8744
9386b588 8745 if (use_json && !*json_header_depth) {
d62a17ae 8746 vty_out(vty,
66f80d74 8747 "{\n \"vrfId\": %d,\n \"vrfName\": \"%s\",\n \"tableVersion\": %" PRId64
01eced22
AD		 8748 ",\n \"routerId\": \"%s\",\n \"defaultLocPrf\": %u,\n"
8749 " \"localAS\": %u,\n \"routes\": { ",
a8bf7d9c 8750 bgp->vrf_id == VRF_UNKNOWN ? -1 : (int)bgp->vrf_id,
5742e42b
DS		 8751 bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT
8752 ? VRF_DEFAULT_NAME
8753 : bgp->name,
01eced22
AD		 8754 table->version, inet_ntoa(bgp->router_id),
8755 bgp->default_local_pref, bgp->as);
9386b588
PZ		 8756 *json_header_depth = 2;
8757 if (rd) {
445c2480 8758 vty_out(vty, " \"routeDistinguishers\" : {");
9386b588
PZ		 8759 ++*json_header_depth;
8760 }
d62a17ae 8761 }
718e3744 8762
445c2480
DS		 8763 if (use_json && rd) {
8764 vty_out(vty, " \"%s\" : { ", rd);
8765 }
8766
d62a17ae 8767 /* Start processing of routes. */
98ce9a06 8768 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
6f94b685
DS		 8769 pi = bgp_node_get_bgp_path_info(rn);
8770 if (pi == NULL)
98ce9a06 8771 continue;
d62a17ae 8772
98ce9a06 8773 display = 0;
98ce9a06
DS		 8774 if (use_json)
8775 json_paths = json_object_new_array();
8776 else
8777 json_paths = NULL;
d62a17ae 8778
6f94b685 8779 for (; pi; pi = pi->next) {
98ce9a06
DS		 8780 total_count++;
8781 if (type == bgp_show_type_flap_statistics
8782 || type == bgp_show_type_flap_neighbor
8783 || type == bgp_show_type_dampend_paths
8784 || type == bgp_show_type_damp_neighbor) {
40381db7 8785 if (!(pi->extra && pi->extra->damp_info))
98ce9a06
DS		 8786 continue;
8787 }
8788 if (type == bgp_show_type_regexp) {
8789 regex_t *regex = output_arg;
d62a17ae 8790
40381db7 8791 if (bgp_regexec(regex, pi->attr->aspath)
98ce9a06
DS		 8792 == REG_NOMATCH)
8793 continue;
8794 }
8795 if (type == bgp_show_type_prefix_list) {
8796 struct prefix_list *plist = output_arg;
d62a17ae 8797
98ce9a06
DS		 8798 if (prefix_list_apply(plist, &rn->p)
8799 != PREFIX_PERMIT)
8800 continue;
8801 }
8802 if (type == bgp_show_type_filter_list) {
8803 struct as_list *as_list = output_arg;
d62a17ae 8804
40381db7 8805 if (as_list_apply(as_list, pi->attr->aspath)
98ce9a06
DS		 8806 != AS_FILTER_PERMIT)
8807 continue;
8808 }
8809 if (type == bgp_show_type_route_map) {
8810 struct route_map *rmap = output_arg;
9b6d8fcf 8811 struct bgp_path_info path;
98ce9a06
DS		 8812 struct attr dummy_attr;
8813 int ret;
d62a17ae 8814
40381db7 8815 bgp_attr_dup(&dummy_attr, pi->attr);
d62a17ae 8816
40381db7 8817 path.peer = pi->peer;
9b6d8fcf 8818 path.attr = &dummy_attr;
d62a17ae 8819
a4d82a8a 8820 ret = route_map_apply(rmap, &rn->p, RMAP_BGP,
9b6d8fcf 8821 &path);
98ce9a06
DS		 8822 if (ret == RMAP_DENYMATCH)
8823 continue;
8824 }
8825 if (type == bgp_show_type_neighbor
8826 || type == bgp_show_type_flap_neighbor
8827 || type == bgp_show_type_damp_neighbor) {
8828 union sockunion *su = output_arg;
8829
40381db7
DS		 8830 if (pi->peer == NULL
8831 || pi->peer->su_remote == NULL
8832 || !sockunion_same(pi->peer->su_remote, su))
98ce9a06
DS		 8833 continue;
8834 }
8835 if (type == bgp_show_type_cidr_only) {
d7c0a89a 8836 uint32_t destination;
d62a17ae 8837
98ce9a06
DS		 8838 destination = ntohl(rn->p.u.prefix4.s_addr);
8839 if (IN_CLASSC(destination)
8840 && rn->p.prefixlen == 24)
8841 continue;
8842 if (IN_CLASSB(destination)
8843 && rn->p.prefixlen == 16)
8844 continue;
8845 if (IN_CLASSA(destination)
8846 && rn->p.prefixlen == 8)
8847 continue;
8848 }
8849 if (type == bgp_show_type_prefix_longer) {
f7813c7c 8850 p = output_arg;
98ce9a06
DS		 8851 if (!prefix_match(p, &rn->p))
8852 continue;
8853 }
8854 if (type == bgp_show_type_community_all) {
40381db7 8855 if (!pi->attr->community)
98ce9a06
DS		 8856 continue;
8857 }
8858 if (type == bgp_show_type_community) {
8859 struct community *com = output_arg;
d62a17ae 8860
40381db7
DS		 8861 if (!pi->attr->community
8862 || !community_match(pi->attr->community,
98ce9a06
DS		 8863 com))
8864 continue;
8865 }
8866 if (type == bgp_show_type_community_exact) {
8867 struct community *com = output_arg;
d62a17ae 8868
40381db7
DS		 8869 if (!pi->attr->community
8870 || !community_cmp(pi->attr->community, com))
98ce9a06
DS		 8871 continue;
8872 }
8873 if (type == bgp_show_type_community_list) {
8874 struct community_list *list = output_arg;
d62a17ae 8875
40381db7 8876 if (!community_list_match(pi->attr->community,
a4d82a8a 8877 list))
98ce9a06
DS		 8878 continue;
8879 }
a4d82a8a 8880 if (type == bgp_show_type_community_list_exact) {
98ce9a06 8881 struct community_list *list = output_arg;
d62a17ae 8882
98ce9a06 8883 if (!community_list_exact_match(
40381db7 8884 pi->attr->community, list))
98ce9a06
DS		 8885 continue;
8886 }
8887 if (type == bgp_show_type_lcommunity) {
8888 struct lcommunity *lcom = output_arg;
d62a17ae 8889
40381db7
DS		 8890 if (!pi->attr->lcommunity
8891 || !lcommunity_match(pi->attr->lcommunity,
98ce9a06
DS		 8892 lcom))
8893 continue;
8894 }
8895 if (type == bgp_show_type_lcommunity_list) {
8896 struct community_list *list = output_arg;
d62a17ae 8897
40381db7 8898 if (!lcommunity_list_match(pi->attr->lcommunity,
a4d82a8a 8899 list))
98ce9a06
DS		 8900 continue;
8901 }
8902 if (type == bgp_show_type_lcommunity_all) {
40381db7 8903 if (!pi->attr->lcommunity)
98ce9a06
DS		 8904 continue;
8905 }
8906 if (type == bgp_show_type_dampend_paths
8907 || type == bgp_show_type_damp_neighbor) {
40381db7
DS		 8908 if (!CHECK_FLAG(pi->flags, BGP_PATH_DAMPED)
8909 || CHECK_FLAG(pi->flags, BGP_PATH_HISTORY))
98ce9a06
DS		 8910 continue;
8911 }
8912
8913 if (!use_json && header) {
996c9314 8914 vty_out(vty, "BGP table version is %" PRIu64
9df8b37c 8915 ", local router ID is %s, vrf id ",
98ce9a06
DS		 8916 table->version,
8917 inet_ntoa(bgp->router_id));
9df8b37c
PZ		 8918 if (bgp->vrf_id == VRF_UNKNOWN)
8919 vty_out(vty, "%s", VRFID_NONE_STR);
8920 else
8921 vty_out(vty, "%u", bgp->vrf_id);
8922 vty_out(vty, "\n");
01eced22
AD		 8923 vty_out(vty, "Default local pref %u, ",
8924 bgp->default_local_pref);
8925 vty_out(vty, "local AS %u\n", bgp->as);
98ce9a06 8926 vty_out(vty, BGP_SHOW_SCODE_HEADER);
9df8b37c 8927 vty_out(vty, BGP_SHOW_NCODE_HEADER);
98ce9a06 8928 vty_out(vty, BGP_SHOW_OCODE_HEADER);
d62a17ae 8929 if (type == bgp_show_type_dampend_paths
8930 || type == bgp_show_type_damp_neighbor)
98ce9a06 8931 vty_out(vty, BGP_SHOW_DAMP_HEADER);
a4d82a8a
PZ		 8932 else if (type == bgp_show_type_flap_statistics
8933 || type == bgp_show_type_flap_neighbor)
98ce9a06 8934 vty_out(vty, BGP_SHOW_FLAP_HEADER);
d62a17ae 8935 else
98ce9a06
DS		 8936 vty_out(vty, BGP_SHOW_HEADER);
8937 header = 0;
d62a17ae 8938 }
98ce9a06
DS		 8939 if (rd != NULL && !display && !output_count) {
8940 if (!use_json)
8941 vty_out(vty,
8942 "Route Distinguisher: %s\n",
8943 rd);
d62a17ae 8944 }
98ce9a06
DS		 8945 if (type == bgp_show_type_dampend_paths
8946 || type == bgp_show_type_damp_neighbor)
40381db7 8947 damp_route_vty_out(vty, &rn->p, pi, display,
a4d82a8a 8948 safi, use_json, json_paths);
98ce9a06
DS		 8949 else if (type == bgp_show_type_flap_statistics
8950 || type == bgp_show_type_flap_neighbor)
40381db7 8951 flap_route_vty_out(vty, &rn->p, pi, display,
a4d82a8a 8952 safi, use_json, json_paths);
98ce9a06 8953 else
40381db7 8954 route_vty_out(vty, &rn->p, pi, display, safi,
a4d82a8a 8955 json_paths);
98ce9a06 8956 display++;
d62a17ae 8957 }
8958
98ce9a06
DS		 8959 if (display) {
8960 output_count++;
8961 if (!use_json)
8962 continue;
8963
8964 p = &rn->p;
625d2931
PG		 8965 /* encode prefix */
8966 if (p->family == AF_FLOWSPEC) {
8967 char retstr[BGP_FLOWSPEC_STRING_DISPLAY_MAX];
8968
8969 bgp_fs_nlri_get_string((unsigned char *)
8970 p->u.prefix_flowspec.ptr,
8971 p->u.prefix_flowspec
8972 .prefixlen,
8973 retstr,
8974 NLRI_STRING_FORMAT_MIN,
8975 NULL);
8976 if (first)
8977 vty_out(vty, "\"%s/%d\": ",
8978 retstr,
8979 p->u.prefix_flowspec.prefixlen);
8980 else
8981 vty_out(vty, ",\"%s/%d\": ",
8982 retstr,
8983 p->u.prefix_flowspec.prefixlen);
8984 } else {
8985 prefix2str(p, buf2, sizeof(buf2));
8986 if (first)
8987 vty_out(vty, "\"%s\": ", buf2);
8988 else
8989 vty_out(vty, ",\"%s\": ", buf2);
8990 }
98ce9a06 8991 vty_out(vty, "%s",
23b2a7ef 8992 json_object_to_json_string(json_paths));
98ce9a06 8993 json_object_free(json_paths);
449feb8e 8994 json_paths = NULL;
98ce9a06
DS		 8995 first = 0;
8996 }
8997 }
8998
1ae44dfc
LB		 8999 if (output_cum) {
9000 output_count += *output_cum;
9001 *output_cum = output_count;
9002 }
9003 if (total_cum) {
9004 total_count += *total_cum;
9005 *total_cum = total_count;
9006 }
d62a17ae 9007 if (use_json) {
9386b588 9008 if (rd) {
a4d82a8a 9009 vty_out(vty, " }%s ", (is_last ? "" : ","));
9386b588
PZ		 9010 }
9011 if (is_last) {
a4d82a8a
PZ		 9012 unsigned long i;
9013 for (i = 0; i < *json_header_depth; ++i)
9014 vty_out(vty, " } ");
faf6559a 9015 vty_out(vty, "\n");
9386b588 9016 }
d62a17ae 9017 } else {
1ae44dfc
LB		 9018 if (is_last) {
9019 /* No route is displayed */
9020 if (output_count == 0) {
9021 if (type == bgp_show_type_normal)
9022 vty_out(vty,
9023 "No BGP prefixes displayed, %ld exist\n",
9024 total_count);
9025 } else
d62a17ae 9026 vty_out(vty,
1ae44dfc
LB		 9027 "\nDisplayed %ld routes and %ld total paths\n",
9028 output_count, total_count);
9029 }
d62a17ae 9030 }
718e3744 9031
d62a17ae 9032 return CMD_SUCCESS;
718e3744 9033}
9034
1ae44dfc
LB		 9035int bgp_show_table_rd(struct vty *vty, struct bgp *bgp, safi_t safi,
9036 struct bgp_table *table, struct prefix_rd *prd_match,
9f049418 9037 enum bgp_show_type type, void *output_arg, bool use_json)
1ae44dfc
LB		 9038{
9039 struct bgp_node *rn, *next;
9040 unsigned long output_cum = 0;
9041 unsigned long total_cum = 0;
9386b588 9042 unsigned long json_header_depth = 0;
67009e22 9043 struct bgp_table *itable;
0136788c
LB		 9044 bool show_msg;
9045
9046 show_msg = (!use_json && type == bgp_show_type_normal);
1ae44dfc
LB		 9047
9048 for (rn = bgp_table_top(table); rn; rn = next) {
9049 next = bgp_route_next(rn);
9050 if (prd_match && memcmp(rn->p.u.val, prd_match->val, 8) != 0)
9051 continue;
67009e22
DS		 9052
9053 itable = bgp_node_get_bgp_table_info(rn);
9054 if (itable != NULL) {
1ae44dfc 9055 struct prefix_rd prd;
06b9f471 9056 char rd[RD_ADDRSTRLEN];
1ae44dfc
LB		 9057
9058 memcpy(&prd, &(rn->p), sizeof(struct prefix_rd));
06b9f471 9059 prefix_rd2str(&prd, rd, sizeof(rd));
67009e22
DS		 9060 bgp_show_table(vty, bgp, safi, itable, type, output_arg,
9061 use_json, rd, next == NULL, &output_cum,
9062 &total_cum, &json_header_depth);
0136788c
LB		 9063 if (next == NULL)
9064 show_msg = false;
1ae44dfc
LB		 9065 }
9066 }
0136788c
LB		 9067 if (show_msg) {
9068 if (output_cum == 0)
9069 vty_out(vty, "No BGP prefixes displayed, %ld exist\n",
9070 total_cum);
9071 else
9072 vty_out(vty,
9073 "\nDisplayed %ld routes and %ld total paths\n",
9074 output_cum, total_cum);
9075 }
1ae44dfc
LB		 9076 return CMD_SUCCESS;
9077}
d62a17ae 9078static int bgp_show(struct vty *vty, struct bgp *bgp, afi_t afi, safi_t safi,
9f049418 9079 enum bgp_show_type type, void *output_arg, bool use_json)
fee0f4c6 9080{
d62a17ae 9081 struct bgp_table *table;
9386b588 9082 unsigned long json_header_depth = 0;
fee0f4c6 9083
d62a17ae 9084 if (bgp == NULL) {
9085 bgp = bgp_get_default();
9086 }
fee0f4c6 9087
d62a17ae 9088 if (bgp == NULL) {
9089 if (!use_json)
9090 vty_out(vty, "No BGP process is configured\n");
16307668
RW		 9091 else
9092 vty_out(vty, "{}\n");
d62a17ae 9093 return CMD_WARNING;
9094 }
4dd6177e 9095
1ae44dfc 9096 table = bgp->rib[afi][safi];
d62a17ae 9097 /* use MPLS and ENCAP specific shows until they are merged */
9098 if (safi == SAFI_MPLS_VPN) {
1ae44dfc
LB		 9099 return bgp_show_table_rd(vty, bgp, safi, table, NULL, type,
9100 output_arg, use_json);
d62a17ae 9101 }
dba3c1d3
PG		 9102
9103 if (safi == SAFI_FLOWSPEC && type == bgp_show_type_detail) {
9104 return bgp_show_table_flowspec(vty, bgp, afi, table, type,
9105 output_arg, use_json,
9106 1, NULL, NULL);
9107 }
d62a17ae 9108 /* labeled-unicast routes live in the unicast table */
9109 else if (safi == SAFI_LABELED_UNICAST)
9110 safi = SAFI_UNICAST;
fee0f4c6 9111
1ae44dfc 9112 return bgp_show_table(vty, bgp, safi, table, type, output_arg, use_json,
9386b588 9113 NULL, 1, NULL, NULL, &json_header_depth);
fee0f4c6 9114}
9115
d62a17ae 9116static void bgp_show_all_instances_routes_vty(struct vty *vty, afi_t afi,
9f049418 9117 safi_t safi, bool use_json)
f186de26 9118{
d62a17ae 9119 struct listnode *node, *nnode;
9120 struct bgp *bgp;
9121 int is_first = 1;
9f049418 9122 bool route_output = false;
f186de26 9123
d62a17ae 9124 if (use_json)
9125 vty_out(vty, "{\n");
9f689658 9126
d62a17ae 9127 for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) {
9f049418 9128 route_output = true;
d62a17ae 9129 if (use_json) {
9130 if (!is_first)
9131 vty_out(vty, ",\n");
9132 else
9133 is_first = 0;
9134
9135 vty_out(vty, "\"%s\":",
9136 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
5742e42b 9137 ? VRF_DEFAULT_NAME
d62a17ae 9138 : bgp->name);
9139 } else {
9140 vty_out(vty, "\nInstance %s:\n",
9141 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
5742e42b 9142 ? VRF_DEFAULT_NAME
d62a17ae 9143 : bgp->name);
9144 }
9145 bgp_show(vty, bgp, afi, safi, bgp_show_type_normal, NULL,
9146 use_json);
9147 }
9f689658 9148
d62a17ae 9149 if (use_json)
9150 vty_out(vty, "}\n");
9f049418
DS		 9151 else if (!route_output)
9152 vty_out(vty, "%% BGP instance not found\n");
f186de26 9153}
9154
718e3744 9155/* Header of detailed BGP route information */
d62a17ae 9156void route_vty_out_detail_header(struct vty *vty, struct bgp *bgp,
9157 struct bgp_node *rn, struct prefix_rd *prd,
9158 afi_t afi, safi_t safi, json_object *json)
9159{
40381db7 9160 struct bgp_path_info *pi;
d62a17ae 9161 struct prefix *p;
9162 struct peer *peer;
9163 struct listnode *node, *nnode;
06b9f471 9164 char buf1[RD_ADDRSTRLEN];
d62a17ae 9165 char buf2[INET6_ADDRSTRLEN];
d62a17ae 9166 char buf3[EVPN_ROUTE_STRLEN];
0291c246 9167 char prefix_str[BUFSIZ];
d62a17ae 9168 int count = 0;
9169 int best = 0;
9170 int suppress = 0;
c5f1e1b2
C		 9171 int accept_own = 0;
9172 int route_filter_translated_v4 = 0;
9173 int route_filter_v4 = 0;
9174 int route_filter_translated_v6 = 0;
9175 int route_filter_v6 = 0;
9176 int llgr_stale = 0;
9177 int no_llgr = 0;
9178 int accept_own_nexthop = 0;
9179 int blackhole = 0;
d62a17ae 9180 int no_export = 0;
9181 int no_advertise = 0;
9182 int local_as = 0;
c5f1e1b2 9183 int no_peer = 0;
d62a17ae 9184 int first = 1;
9185 int has_valid_label = 0;
9186 mpls_label_t label = 0;
9187 json_object *json_adv_to = NULL;
9bedbb1e 9188
d62a17ae 9189 p = &rn->p;
9190 has_valid_label = bgp_is_valid_label(&rn->local_label);
9191
9192 if (has_valid_label)
9193 label = label_pton(&rn->local_label);
9194
9195 if (json) {
9196 if (has_valid_label)
9197 json_object_int_add(json, "localLabel", label);
9198
60466a63
QY		 9199 json_object_string_add(
9200 json, "prefix",
9201 prefix2str(p, prefix_str, sizeof(prefix_str)));
d62a17ae 9202 } else {
d62a17ae 9203 if (safi == SAFI_EVPN)
9204 vty_out(vty, "BGP routing table entry for %s%s%s\n",
06b9f471 9205 prd ? prefix_rd2str(prd, buf1, sizeof(buf1))
d62a17ae 9206 : "",
9207 prd ? ":" : "",
9208 bgp_evpn_route2str((struct prefix_evpn *)p,
9209 buf3, sizeof(buf3)));
9210 else
9211 vty_out(vty, "BGP routing table entry for %s%s%s/%d\n",
9212 ((safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP)
9213 ? prefix_rd2str(prd, buf1,
06b9f471 9214 sizeof(buf1))
d62a17ae 9215 : ""),
9216 safi == SAFI_MPLS_VPN ? ":" : "",
9217 inet_ntop(p->family, &p->u.prefix, buf2,
9218 INET6_ADDRSTRLEN),
9219 p->prefixlen);
cd1964ff 9220
d62a17ae 9221 if (has_valid_label)
9222 vty_out(vty, "Local label: %d\n", label);
d62a17ae 9223 if (bgp_labeled_safi(safi) && safi != SAFI_EVPN)
d62a17ae 9224 vty_out(vty, "not allocated\n");
9225 }
718e3744 9226
6f94b685 9227 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
d62a17ae 9228 count++;
40381db7 9229 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) {
d62a17ae 9230 best = count;
40381db7 9231 if (pi->extra && pi->extra->suppress)
d62a17ae 9232 suppress = 1;
cee9c031 9233
40381db7 9234 if (pi->attr->community == NULL)
cee9c031
QY		 9235 continue;
9236
9237 no_advertise += community_include(
40381db7
DS		 9238 pi->attr->community, COMMUNITY_NO_ADVERTISE);
9239 no_export += community_include(pi->attr->community,
cee9c031 9240 COMMUNITY_NO_EXPORT);
40381db7 9241 local_as += community_include(pi->attr->community,
cee9c031 9242 COMMUNITY_LOCAL_AS);
40381db7 9243 accept_own += community_include(pi->attr->community,
cee9c031
QY		 9244 COMMUNITY_ACCEPT_OWN);
9245 route_filter_translated_v4 += community_include(
40381db7 9246 pi->attr->community,
cee9c031
QY		 9247 COMMUNITY_ROUTE_FILTER_TRANSLATED_v4);
9248 route_filter_translated_v6 += community_include(
40381db7 9249 pi->attr->community,
cee9c031
QY		 9250 COMMUNITY_ROUTE_FILTER_TRANSLATED_v6);
9251 route_filter_v4 += community_include(
40381db7 9252 pi->attr->community, COMMUNITY_ROUTE_FILTER_v4);
cee9c031 9253 route_filter_v6 += community_include(
40381db7
DS		 9254 pi->attr->community, COMMUNITY_ROUTE_FILTER_v6);
9255 llgr_stale += community_include(pi->attr->community,
cee9c031 9256 COMMUNITY_LLGR_STALE);
40381db7 9257 no_llgr += community_include(pi->attr->community,
cee9c031
QY		 9258 COMMUNITY_NO_LLGR);
9259 accept_own_nexthop +=
40381db7 9260 community_include(pi->attr->community,
cee9c031 9261 COMMUNITY_ACCEPT_OWN_NEXTHOP);
40381db7 9262 blackhole += community_include(pi->attr->community,
cee9c031 9263 COMMUNITY_BLACKHOLE);
40381db7 9264 no_peer += community_include(pi->attr->community,
cee9c031 9265 COMMUNITY_NO_PEER);
d62a17ae 9266 }
718e3744 9267 }
718e3744 9268
d62a17ae 9269 if (!json) {
9270 vty_out(vty, "Paths: (%d available", count);
9271 if (best) {
9272 vty_out(vty, ", best #%d", best);
9273 if (safi == SAFI_UNICAST)
9274 vty_out(vty, ", table %s",
9275 (bgp->inst_type
9276 == BGP_INSTANCE_TYPE_DEFAULT)
5742e42b 9277 ? VRF_DEFAULT_NAME
d62a17ae 9278 : bgp->name);
9279 } else
9280 vty_out(vty, ", no best path");
9281
c5f1e1b2
C		 9282 if (accept_own)
9283 vty_out(vty,
9284 ", accept own local route exported and imported in different VRF");
9285 else if (route_filter_translated_v4)
9286 vty_out(vty,
9287 ", mark translated RTs for VPNv4 route filtering");
9288 else if (route_filter_v4)
9289 vty_out(vty,
9290 ", attach RT as-is for VPNv4 route filtering");
9291 else if (route_filter_translated_v6)
9292 vty_out(vty,
9293 ", mark translated RTs for VPNv6 route filtering");
9294 else if (route_filter_v6)
9295 vty_out(vty,
9296 ", attach RT as-is for VPNv6 route filtering");
9297 else if (llgr_stale)
9298 vty_out(vty,
9299 ", mark routes to be retained for a longer time. Requeres support for Long-lived BGP Graceful Restart");
9300 else if (no_llgr)
9301 vty_out(vty,
9302 ", mark routes to not be treated according to Long-lived BGP Graceful Restart operations");
9303 else if (accept_own_nexthop)
9304 vty_out(vty,
9305 ", accept local nexthop");
9306 else if (blackhole)
9307 vty_out(vty, ", inform peer to blackhole prefix");
d62a17ae 9308 else if (no_export)
9309 vty_out(vty, ", not advertised to EBGP peer");
c5f1e1b2
C		 9310 else if (no_advertise)
9311 vty_out(vty, ", not advertised to any peer");
d62a17ae 9312 else if (local_as)
9313 vty_out(vty, ", not advertised outside local AS");
c5f1e1b2
C		 9314 else if (no_peer)
9315 vty_out(vty,
9316 ", inform EBGP peer not to advertise to their EBGP peers");
d62a17ae 9317
9318 if (suppress)
9319 vty_out(vty,
9320 ", Advertisements suppressed by an aggregate.");
9321 vty_out(vty, ")\n");
9322 }
718e3744 9323
d62a17ae 9324 /* If we are not using addpath then we can display Advertised to and
9325 * that will
9326 * show what peers we advertised the bestpath to. If we are using
9327 * addpath
9328 * though then we must display Advertised to on a path-by-path basis. */
dcc68b5e 9329 if (!bgp_addpath_is_addpath_used(&bgp->tx_addpath, afi, safi)) {
d62a17ae 9330 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
9331 if (bgp_adj_out_lookup(peer, rn, 0)) {
9332 if (json && !json_adv_to)
9333 json_adv_to = json_object_new_object();
9334
9335 route_vty_out_advertised_to(
9336 vty, peer, &first,
9337 " Advertised to non peer-group peers:\n ",
9338 json_adv_to);
9339 }
9340 }
9341
9342 if (json) {
9343 if (json_adv_to) {
9344 json_object_object_add(json, "advertisedTo",
9345 json_adv_to);
9346 }
9347 } else {
9348 if (first)
9349 vty_out(vty, " Not advertised to any peer");
9350 vty_out(vty, "\n");
9351 }
9352 }
718e3744 9353}
9354
9355/* Display specified route of BGP table. */
d62a17ae 9356static int bgp_show_route_in_table(struct vty *vty, struct bgp *bgp,
9357 struct bgp_table *rib, const char *ip_str,
9358 afi_t afi, safi_t safi,
9359 struct prefix_rd *prd, int prefix_check,
9f049418 9360 enum bgp_path_type pathtype, bool use_json)
d62a17ae 9361{
9362 int ret;
9363 int header;
9364 int display = 0;
9365 struct prefix match;
9366 struct bgp_node *rn;
9367 struct bgp_node *rm;
40381db7 9368 struct bgp_path_info *pi;
d62a17ae 9369 struct bgp_table *table;
9370 json_object *json = NULL;
9371 json_object *json_paths = NULL;
9372
9373 /* Check IP address argument. */
9374 ret = str2prefix(ip_str, &match);
9375 if (!ret) {
9376 vty_out(vty, "address is malformed\n");
9377 return CMD_WARNING;
9378 }
718e3744 9379
d62a17ae 9380 match.family = afi2family(afi);
b05a1c8b 9381
d62a17ae 9382 if (use_json) {
9383 json = json_object_new_object();
9384 json_paths = json_object_new_array();
9385 }
718e3744 9386
d62a17ae 9387 if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP || safi == SAFI_EVPN) {
9388 for (rn = bgp_table_top(rib); rn; rn = bgp_route_next(rn)) {
9389 if (prd && memcmp(rn->p.u.val, prd->val, 8) != 0)
9390 continue;
67009e22
DS		 9391 table = bgp_node_get_bgp_table_info(rn);
9392 if (!table)
ea47320b 9393 continue;
d62a17ae 9394
ea47320b
DL		 9395 header = 1;
9396
9397 if ((rm = bgp_node_match(table, &match)) == NULL)
9398 continue;
d62a17ae 9399
ea47320b
DL		 9400 if (prefix_check
9401 && rm->p.prefixlen != match.prefixlen) {
9402 bgp_unlock_node(rm);
9403 continue;
9404 }
d62a17ae 9405
6f94b685
DS		 9406 for (pi = bgp_node_get_bgp_path_info(rm); pi;
9407 pi = pi->next) {
ea47320b 9408 if (header) {
60466a63
QY		 9409 route_vty_out_detail_header(
9410 vty, bgp, rm,
9411 (struct prefix_rd *)&rn->p,
ea47320b
DL		 9412 AFI_IP, safi, json);
9413 header = 0;
d62a17ae 9414 }
ea47320b
DL		 9415 display++;
9416
360660c6
DS		 9417 if (pathtype == BGP_PATH_SHOW_ALL
9418 || (pathtype == BGP_PATH_SHOW_BESTPATH
40381db7 9419 && CHECK_FLAG(pi->flags,
1defdda8 9420 BGP_PATH_SELECTED))
360660c6 9421 || (pathtype == BGP_PATH_SHOW_MULTIPATH
40381db7 9422 && (CHECK_FLAG(pi->flags,
1defdda8 9423 BGP_PATH_MULTIPATH)
40381db7 9424 || CHECK_FLAG(pi->flags,
1defdda8 9425 BGP_PATH_SELECTED))))
ea47320b 9426 route_vty_out_detail(vty, bgp, &rm->p,
40381db7 9427 pi, AFI_IP, safi,
ea47320b 9428 json_paths);
d62a17ae 9429 }
ea47320b
DL		 9430
9431 bgp_unlock_node(rm);
d62a17ae 9432 }
98a9dbc7 9433 } else if (safi == SAFI_FLOWSPEC) {
63a0b7a9
PG		 9434 display = bgp_flowspec_display_match_per_ip(afi, rib,
9435 &match, prefix_check,
9436 vty,
9437 use_json,
9438 json_paths);
d62a17ae 9439 } else {
9440 header = 1;
9441
9442 if ((rn = bgp_node_match(rib, &match)) != NULL) {
9443 if (!prefix_check
9444 || rn->p.prefixlen == match.prefixlen) {
6f94b685
DS		 9445 for (pi = bgp_node_get_bgp_path_info(rn); pi;
9446 pi = pi->next) {
d62a17ae 9447 if (header) {
9448 route_vty_out_detail_header(
9449 vty, bgp, rn, NULL, afi,
9450 safi, json);
9451 header = 0;
9452 }
9453 display++;
9454
360660c6
DS		 9455 if (pathtype == BGP_PATH_SHOW_ALL
9456 || (pathtype
9457 == BGP_PATH_SHOW_BESTPATH
d62a17ae 9458 && CHECK_FLAG(
40381db7 9459 pi->flags,
1defdda8 9460 BGP_PATH_SELECTED))
360660c6
DS		 9461 || (pathtype
9462 == BGP_PATH_SHOW_MULTIPATH
d62a17ae 9463 && (CHECK_FLAG(
40381db7 9464 pi->flags,
1defdda8 9465 BGP_PATH_MULTIPATH)
d62a17ae 9466 || CHECK_FLAG(
40381db7 9467 pi->flags,
1defdda8 9468 BGP_PATH_SELECTED))))
d62a17ae 9469 route_vty_out_detail(
40381db7 9470 vty, bgp, &rn->p, pi,
d62a17ae 9471 afi, safi, json_paths);
9472 }
9473 }
9474
9475 bgp_unlock_node(rn);
9476 }
9477 }
e5eee9af 9478
d62a17ae 9479 if (use_json) {
9480 if (display)
9481 json_object_object_add(json, "paths", json_paths);
9482
996c9314
LB		 9483 vty_out(vty, "%s\n", json_object_to_json_string_ext(
9484 json, JSON_C_TO_STRING_PRETTY));
d62a17ae 9485 json_object_free(json);
9486 } else {
9487 if (!display) {
9488 vty_out(vty, "%% Network not in table\n");
9489 return CMD_WARNING;
9490 }
9491 }
b05a1c8b 9492
d62a17ae 9493 return CMD_SUCCESS;
718e3744 9494}
9495
fee0f4c6 9496/* Display specified route of Main RIB */
d62a17ae 9497static int bgp_show_route(struct vty *vty, struct bgp *bgp, const char *ip_str,
9498 afi_t afi, safi_t safi, struct prefix_rd *prd,
9499 int prefix_check, enum bgp_path_type pathtype,
9f049418 9500 bool use_json)
d62a17ae 9501{
9b86009a 9502 if (!bgp) {
d62a17ae 9503 bgp = bgp_get_default();
9b86009a
RW		 9504 if (!bgp) {
9505 if (!use_json)
9506 vty_out(vty, "No BGP process is configured\n");
16307668
RW		 9507 else
9508 vty_out(vty, "{}\n");
9b86009a
RW		 9509 return CMD_WARNING;
9510 }
9511 }
d62a17ae 9512
9513 /* labeled-unicast routes live in the unicast table */
9514 if (safi == SAFI_LABELED_UNICAST)
9515 safi = SAFI_UNICAST;
9516
9517 return bgp_show_route_in_table(vty, bgp, bgp->rib[afi][safi], ip_str,
9518 afi, safi, prd, prefix_check, pathtype,
9519 use_json);
9520}
9521
9522static int bgp_show_lcommunity(struct vty *vty, struct bgp *bgp, int argc,
9523 struct cmd_token **argv, afi_t afi, safi_t safi,
088f1098 9524 bool uj)
d62a17ae 9525{
9526 struct lcommunity *lcom;
9527 struct buffer *b;
9528 int i;
9529 char *str;
9530 int first = 0;
9531
9532 b = buffer_new(1024);
9533 for (i = 0; i < argc; i++) {
9534 if (first)
9535 buffer_putc(b, ' ');
9536 else {
9537 if (strmatch(argv[i]->text, "AA:BB:CC")) {
9538 first = 1;
9539 buffer_putstr(b, argv[i]->arg);
9540 }
9541 }
9542 }
9543 buffer_putc(b, '\0');
57d187bc 9544
d62a17ae 9545 str = buffer_getstr(b);
9546 buffer_free(b);
57d187bc 9547
d62a17ae 9548 lcom = lcommunity_str2com(str);
9549 XFREE(MTYPE_TMP, str);
9550 if (!lcom) {
9551 vty_out(vty, "%% Large-community malformed\n");
9552 return CMD_WARNING;
9553 }
57d187bc 9554
d62a17ae 9555 return bgp_show(vty, bgp, afi, safi, bgp_show_type_lcommunity, lcom,
9556 uj);
57d187bc
JS		 9557}
9558
d62a17ae 9559static int bgp_show_lcommunity_list(struct vty *vty, struct bgp *bgp,
9560 const char *lcom, afi_t afi, safi_t safi,
088f1098 9561 bool uj)
57d187bc 9562{
d62a17ae 9563 struct community_list *list;
57d187bc 9564
e237b0d2 9565 list = community_list_lookup(bgp_clist, lcom, 0,
d62a17ae 9566 LARGE_COMMUNITY_LIST_MASTER);
9567 if (list == NULL) {
9568 vty_out(vty, "%% %s is not a valid large-community-list name\n",
9569 lcom);
9570 return CMD_WARNING;
9571 }
57d187bc 9572
d62a17ae 9573 return bgp_show(vty, bgp, afi, safi, bgp_show_type_lcommunity_list,
9574 list, uj);
fee0f4c6 9575}
9576
52951b63
DS		 9577DEFUN (show_ip_bgp_large_community_list,
9578 show_ip_bgp_large_community_list_cmd,
4dd6177e 9579 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community-list <(1-500)|WORD> [json]",
52951b63
DS		 9580 SHOW_STR
9581 IP_STR
9582 BGP_STR
9583 BGP_INSTANCE_HELP_STR
9bedbb1e 9584 BGP_AFI_HELP_STR
4dd6177e 9585 BGP_SAFI_WITH_LABEL_HELP_STR
52951b63
DS		 9586 "Display routes matching the large-community-list\n"
9587 "large-community-list number\n"
9588 "large-community-list name\n"
9589 JSON_STR)
9590{
d62a17ae 9591 char *vrf = NULL;
9592 afi_t afi = AFI_IP6;
9593 safi_t safi = SAFI_UNICAST;
9594 int idx = 0;
9595
9596 if (argv_find(argv, argc, "ip", &idx))
9597 afi = AFI_IP;
9598 if (argv_find(argv, argc, "view", &idx)
9599 || argv_find(argv, argc, "vrf", &idx))
9600 vrf = argv[++idx]->arg;
9601 if (argv_find(argv, argc, "ipv4", &idx)
9602 || argv_find(argv, argc, "ipv6", &idx)) {
9603 afi = strmatch(argv[idx]->text, "ipv6") ? AFI_IP6 : AFI_IP;
9604 if (argv_find(argv, argc, "unicast", &idx)
9605 || argv_find(argv, argc, "multicast", &idx))
9606 safi = bgp_vty_safi_from_str(argv[idx]->text);
9607 }
9608
9f049418 9609 bool uj = use_json(argc, argv);
d62a17ae 9610
9611 struct bgp *bgp = bgp_lookup_by_name(vrf);
9612 if (bgp == NULL) {
9613 vty_out(vty, "Can't find BGP instance %s\n", vrf);
9614 return CMD_WARNING;
9615 }
9616
9617 argv_find(argv, argc, "large-community-list", &idx);
9618 return bgp_show_lcommunity_list(vty, bgp, argv[idx + 1]->arg, afi, safi,
9619 uj);
52951b63
DS		 9620}
9621DEFUN (show_ip_bgp_large_community,
9622 show_ip_bgp_large_community_cmd,
4dd6177e 9623 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community [AA:BB:CC] [json]",
52951b63
DS		 9624 SHOW_STR
9625 IP_STR
9626 BGP_STR
9627 BGP_INSTANCE_HELP_STR
9bedbb1e 9628 BGP_AFI_HELP_STR
4dd6177e 9629 BGP_SAFI_WITH_LABEL_HELP_STR
52951b63
DS		 9630 "Display routes matching the large-communities\n"
9631 "List of large-community numbers\n"
9632 JSON_STR)
9633{
d62a17ae 9634 char *vrf = NULL;
9635 afi_t afi = AFI_IP6;
9636 safi_t safi = SAFI_UNICAST;
9637 int idx = 0;
9638
9639 if (argv_find(argv, argc, "ip", &idx))
9640 afi = AFI_IP;
9641 if (argv_find(argv, argc, "view", &idx)
9642 || argv_find(argv, argc, "vrf", &idx))
9643 vrf = argv[++idx]->arg;
9644 if (argv_find(argv, argc, "ipv4", &idx)
9645 || argv_find(argv, argc, "ipv6", &idx)) {
9646 afi = strmatch(argv[idx]->text, "ipv6") ? AFI_IP6 : AFI_IP;
9647 if (argv_find(argv, argc, "unicast", &idx)
9648 || argv_find(argv, argc, "multicast", &idx))
9649 safi = bgp_vty_safi_from_str(argv[idx]->text);
9650 }
9651
9f049418 9652 bool uj = use_json(argc, argv);
d62a17ae 9653
9654 struct bgp *bgp = bgp_lookup_by_name(vrf);
9655 if (bgp == NULL) {
9656 vty_out(vty, "Can't find BGP instance %s\n", vrf);
9657 return CMD_WARNING;
9658 }
9659
9660 if (argv_find(argv, argc, "AA:BB:CC", &idx))
9661 return bgp_show_lcommunity(vty, bgp, argc, argv, afi, safi, uj);
9662 else
9663 return bgp_show(vty, bgp, afi, safi,
9664 bgp_show_type_lcommunity_all, NULL, uj);
52951b63
DS		 9665}
9666
d62a17ae 9667static int bgp_table_stats(struct vty *vty, struct bgp *bgp, afi_t afi,
9668 safi_t safi);
e01ca200 9669
7b2ff250
DW		 9670
9671/* BGP route print out function without JSON */
af462945
DS		 9672DEFUN (show_ip_bgp,
9673 show_ip_bgp_cmd,
4dd6177e 9674 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]\
7b2ff250
DW		 9675 <dampening <parameters>\
9676 |route-map WORD\
9677 |prefix-list WORD\
9678 |filter-list WORD\
9679 |statistics\
7b2ff250
DW		 9680 |community-list <(1-500)|WORD> [exact-match]\
9681 |A.B.C.D/M longer-prefixes\
9682 |X:X::X:X/M longer-prefixes\
9683 >",
718e3744 9684 SHOW_STR
9685 IP_STR
9686 BGP_STR
a636c635 9687 BGP_INSTANCE_HELP_STR
4f280b15 9688 BGP_AFI_HELP_STR
4dd6177e 9689 BGP_SAFI_WITH_LABEL_HELP_STR
a636c635 9690 "Display detailed information about dampening\n"
af462945 9691 "Display detail of configured dampening parameters\n"
a636c635
DW		 9692 "Display routes matching the route-map\n"
9693 "A route-map to match on\n"
9694 "Display routes conforming to the prefix-list\n"
8c3deaae 9695 "Prefix-list name\n"
a636c635
DW		 9696 "Display routes conforming to the filter-list\n"
9697 "Regular expression access list name\n"
e01ca200 9698 "BGP RIB advertisement statistics\n"
a636c635
DW		 9699 "Display routes matching the community-list\n"
9700 "community-list number\n"
9701 "community-list name\n"
9702 "Exact match of the communities\n"
0c7b1b01 9703 "IPv4 prefix\n"
8c3deaae 9704 "Display route and more specific routes\n"
0c7b1b01 9705 "IPv6 prefix\n"
7b2ff250 9706 "Display route and more specific routes\n")
718e3744 9707{
d62a17ae 9708 afi_t afi = AFI_IP6;
9709 safi_t safi = SAFI_UNICAST;
9710 int exact_match = 0;
d62a17ae 9711 struct bgp *bgp = NULL;
9712 int idx = 0;
9713
9714 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 9715 &bgp, false);
d62a17ae 9716 if (!idx)
9717 return CMD_WARNING;
9718
d62a17ae 9719 if (argv_find(argv, argc, "dampening", &idx)) {
7b2ff250 9720 if (argv_find(argv, argc, "parameters", &idx))
d62a17ae 9721 return bgp_show_dampening_parameters(vty, afi, safi);
9722 }
c016b6c7 9723
d62a17ae 9724 if (argv_find(argv, argc, "prefix-list", &idx))
9725 return bgp_show_prefix_list(vty, bgp, argv[idx + 1]->arg, afi,
9726 safi, bgp_show_type_prefix_list);
9727
9728 if (argv_find(argv, argc, "filter-list", &idx))
9729 return bgp_show_filter_list(vty, bgp, argv[idx + 1]->arg, afi,
9730 safi, bgp_show_type_filter_list);
9731
9732 if (argv_find(argv, argc, "statistics", &idx))
9733 return bgp_table_stats(vty, bgp, afi, safi);
9734
9735 if (argv_find(argv, argc, "route-map", &idx))
9736 return bgp_show_route_map(vty, bgp, argv[idx + 1]->arg, afi,
9737 safi, bgp_show_type_route_map);
9738
d62a17ae 9739 if (argv_find(argv, argc, "community-list", &idx)) {
9740 const char *clist_number_or_name = argv[++idx]->arg;
9741 if (++idx < argc && strmatch(argv[idx]->text, "exact-match"))
9742 exact_match = 1;
9743 return bgp_show_community_list(vty, bgp, clist_number_or_name,
9744 exact_match, afi, safi);
9745 }
9746 /* prefix-longer */
9747 if (argv_find(argv, argc, "A.B.C.D/M", &idx)
9748 || argv_find(argv, argc, "X:X::X:X/M", &idx))
9749 return bgp_show_prefix_longer(vty, bgp, argv[idx]->arg, afi,
9750 safi,
9751 bgp_show_type_prefix_longer);
9752
7b2ff250
DW		 9753 return CMD_WARNING;
9754}
9755
9756/* BGP route print out function with JSON */
9757DEFUN (show_ip_bgp_json,
9758 show_ip_bgp_json_cmd,
9759 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]\
cf4898bc
QY		 9760 [cidr-only\
9761 |dampening <flap-statistics|dampened-paths>\
9762 |community [AA:NN|local-AS|no-advertise|no-export\
9763 |graceful-shutdown|no-peer|blackhole|llgr-stale|no-llgr\
9764 |accept-own|accept-own-nexthop|route-filter-v6\
9765 |route-filter-v4|route-filter-translated-v6\
9766 |route-filter-translated-v4] [exact-match]\
9767 ] [json]",
7b2ff250
DW		 9768 SHOW_STR
9769 IP_STR
9770 BGP_STR
9771 BGP_INSTANCE_HELP_STR
9772 BGP_AFI_HELP_STR
9773 BGP_SAFI_WITH_LABEL_HELP_STR
9774 "Display only routes with non-natural netmasks\n"
9775 "Display detailed information about dampening\n"
9776 "Display flap statistics of routes\n"
9777 "Display paths suppressed due to dampening\n"
9778 "Display routes matching the communities\n"
d0086e8e
AD		 9779 COMMUNITY_AANN_STR
9780 "Do not send outside local AS (well-known community)\n"
9781 "Do not advertise to any peer (well-known community)\n"
9782 "Do not export to next AS (well-known community)\n"
9783 "Graceful shutdown (well-known community)\n"
cf4898bc
QY		 9784 "Do not export to any peer (well-known community)\n"
9785 "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n"
9786 "Staled Long-lived Graceful Restart VPN route (well-known community)\n"
9787 "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n"
9788 "Should accept local VPN route if exported and imported into different VRF (well-known community)\n"
9789 "Should accept VPN route with local nexthop (well-known community)\n"
9790 "RT VPNv6 route filtering (well-known community)\n"
9791 "RT VPNv4 route filtering (well-known community)\n"
9792 "RT translated VPNv6 route filtering (well-known community)\n"
9793 "RT translated VPNv4 route filtering (well-known community)\n"
d0086e8e 9794 "Exact match of the communities\n"
7b2ff250
DW		 9795 JSON_STR)
9796{
9797 afi_t afi = AFI_IP6;
9798 safi_t safi = SAFI_UNICAST;
9799 enum bgp_show_type sh_type = bgp_show_type_normal;
9800 struct bgp *bgp = NULL;
9801 int idx = 0;
d0086e8e 9802 int exact_match = 0;
9f049418
DS		 9803 bool uj = use_json(argc, argv);
9804
9805 if (uj)
9806 argc--;
7b2ff250
DW		 9807
9808 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 9809 &bgp, uj);
7b2ff250
DW		 9810 if (!idx)
9811 return CMD_WARNING;
9812
7b2ff250
DW		 9813 if (argv_find(argv, argc, "cidr-only", &idx))
9814 return bgp_show(vty, bgp, afi, safi, bgp_show_type_cidr_only,
9815 NULL, uj);
9816
9817 if (argv_find(argv, argc, "dampening", &idx)) {
9818 if (argv_find(argv, argc, "dampened-paths", &idx))
9819 return bgp_show(vty, bgp, afi, safi,
9820 bgp_show_type_dampend_paths, NULL, uj);
9821 else if (argv_find(argv, argc, "flap-statistics", &idx))
9822 return bgp_show(vty, bgp, afi, safi,
9823 bgp_show_type_flap_statistics, NULL,
9824 uj);
9825 }
9826
9827 if (argv_find(argv, argc, "community", &idx)) {
79bc257a 9828 char *maybecomm = NULL;
cf4898bc 9829 char *community = NULL;
d0086e8e 9830
79bc257a
RW		 9831 if (idx + 1 < argc) {
9832 if (argv[idx + 1]->type == VARIABLE_TKN)
9833 maybecomm = argv[idx + 1]->arg;
9834 else
9835 maybecomm = argv[idx + 1]->text;
9836 }
9837
cf4898bc
QY		 9838 if (maybecomm && !strmatch(maybecomm, "json")
9839 && !strmatch(maybecomm, "exact-match"))
9840 community = maybecomm;
d0086e8e 9841
cf4898bc
QY		 9842 if (argv_find(argv, argc, "exact-match", &idx))
9843 exact_match = 1;
d0086e8e 9844
cf4898bc
QY		 9845 if (community)
9846 return bgp_show_community(vty, bgp, community,
9847 exact_match, afi, safi, uj);
9848 else
d0086e8e 9849 return (bgp_show(vty, bgp, afi, safi,
cf4898bc
QY		 9850 bgp_show_type_community_all, NULL,
9851 uj));
7b2ff250 9852 }
d0086e8e 9853
1ae44dfc 9854 return bgp_show(vty, bgp, afi, safi, sh_type, NULL, uj);
a636c635 9855}
47fc97cc 9856
718e3744 9857DEFUN (show_ip_bgp_route,
9858 show_ip_bgp_route_cmd,
4dd6177e 9859 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]"
ae19d7dd 9860 "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]",
718e3744 9861 SHOW_STR
9862 IP_STR
9863 BGP_STR
a636c635 9864 BGP_INSTANCE_HELP_STR
4f280b15 9865 BGP_AFI_HELP_STR
4dd6177e 9866 BGP_SAFI_WITH_LABEL_HELP_STR
b05a1c8b 9867 "Network in the BGP routing table to display\n"
0c7b1b01 9868 "IPv4 prefix\n"
8c3deaae 9869 "Network in the BGP routing table to display\n"
0c7b1b01 9870 "IPv6 prefix\n"
4092b06c 9871 "Display only the bestpath\n"
b05a1c8b 9872 "Display only multipaths\n"
9973d184 9873 JSON_STR)
4092b06c 9874{
d62a17ae 9875 int prefix_check = 0;
ae19d7dd 9876
d62a17ae 9877 afi_t afi = AFI_IP6;
9878 safi_t safi = SAFI_UNICAST;
9879 char *prefix = NULL;
9880 struct bgp *bgp = NULL;
9881 enum bgp_path_type path_type;
9f049418 9882 bool uj = use_json(argc, argv);
b05a1c8b 9883
d62a17ae 9884 int idx = 0;
ae19d7dd 9885
d62a17ae 9886 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 9887 &bgp, uj);
d62a17ae 9888 if (!idx)
9889 return CMD_WARNING;
c41247f5 9890
d62a17ae 9891 if (!bgp) {
9892 vty_out(vty,
9893 "Specified 'all' vrf's but this command currently only works per view/vrf\n");
9894 return CMD_WARNING;
9895 }
a636c635 9896
d62a17ae 9897 /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */
9898 if (argv_find(argv, argc, "A.B.C.D", &idx)
9899 || argv_find(argv, argc, "X:X::X:X", &idx))
9900 prefix_check = 0;
9901 else if (argv_find(argv, argc, "A.B.C.D/M", &idx)
9902 || argv_find(argv, argc, "X:X::X:X/M", &idx))
9903 prefix_check = 1;
9904
9905 if ((argv[idx]->type == IPV6_TKN || argv[idx]->type == IPV6_PREFIX_TKN)
9906 && afi != AFI_IP6) {
9907 vty_out(vty,
9908 "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n");
9909 return CMD_WARNING;
9910 }
9911 if ((argv[idx]->type == IPV4_TKN || argv[idx]->type == IPV4_PREFIX_TKN)
9912 && afi != AFI_IP) {
9913 vty_out(vty,
9914 "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n");
9915 return CMD_WARNING;
9916 }
9917
9918 prefix = argv[idx]->arg;
9919
9920 /* [<bestpath|multipath>] */
9921 if (argv_find(argv, argc, "bestpath", &idx))
360660c6 9922 path_type = BGP_PATH_SHOW_BESTPATH;
d62a17ae 9923 else if (argv_find(argv, argc, "multipath", &idx))
360660c6 9924 path_type = BGP_PATH_SHOW_MULTIPATH;
d62a17ae 9925 else
360660c6 9926 path_type = BGP_PATH_SHOW_ALL;
a636c635 9927
d62a17ae 9928 return bgp_show_route(vty, bgp, prefix, afi, safi, NULL, prefix_check,
9929 path_type, uj);
4092b06c
DS		 9930}
9931
8c3deaae
QY		 9932DEFUN (show_ip_bgp_regexp,
9933 show_ip_bgp_regexp_cmd,
4dd6177e 9934 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] regexp REGEX...",
8c3deaae
QY		 9935 SHOW_STR
9936 IP_STR
9937 BGP_STR
b00b230a 9938 BGP_INSTANCE_HELP_STR
4f280b15 9939 BGP_AFI_HELP_STR
4dd6177e 9940 BGP_SAFI_WITH_LABEL_HELP_STR
8c3deaae 9941 "Display routes matching the AS path regular expression\n"
a818ea74 9942 "A regular-expression (1234567890_^|[,{}() ]$*+.?-\\) to match the BGP AS paths\n")
8c3deaae 9943{
d62a17ae 9944 afi_t afi = AFI_IP6;
9945 safi_t safi = SAFI_UNICAST;
9946 struct bgp *bgp = NULL;
8c3deaae 9947
d62a17ae 9948 int idx = 0;
9949 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 9950 &bgp, false);
d62a17ae 9951 if (!idx)
9952 return CMD_WARNING;
8c3deaae 9953
d62a17ae 9954 // get index of regex
9955 argv_find(argv, argc, "regexp", &idx);
9956 idx++;
8c3deaae 9957
d62a17ae 9958 char *regstr = argv_concat(argv, argc, idx);
e889891d 9959 int rc = bgp_show_regexp(vty, bgp, (const char *)regstr, afi, safi,
d62a17ae 9960 bgp_show_type_regexp);
9961 XFREE(MTYPE_TMP, regstr);
9962 return rc;
8c3deaae
QY		 9963}
9964
a636c635
DW		 9965DEFUN (show_ip_bgp_instance_all,
9966 show_ip_bgp_instance_all_cmd,
4dd6177e 9967 "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] [json]",
4092b06c 9968 SHOW_STR
a636c635 9969 IP_STR
4092b06c 9970 BGP_STR
a636c635 9971 BGP_INSTANCE_ALL_HELP_STR
4f280b15 9972 BGP_AFI_HELP_STR
4dd6177e 9973 BGP_SAFI_WITH_LABEL_HELP_STR
9973d184 9974 JSON_STR)
4092b06c 9975{
d62a17ae 9976 afi_t afi = AFI_IP;
9977 safi_t safi = SAFI_UNICAST;
9978 struct bgp *bgp = NULL;
d62a17ae 9979 int idx = 0;
9f049418 9980 bool uj = use_json(argc, argv);
ae19d7dd 9981
d62a17ae 9982 if (uj)
9983 argc--;
e3e29b32 9984
9f049418
DS		 9985 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9986 &bgp, uj);
9987 if (!idx)
9988 return CMD_WARNING;
9989
d62a17ae 9990 bgp_show_all_instances_routes_vty(vty, afi, safi, uj);
9991 return CMD_SUCCESS;
e3e29b32
LB		 9992}
9993
a4d82a8a
PZ		 9994static int bgp_show_regexp(struct vty *vty, struct bgp *bgp, const char *regstr,
9995 afi_t afi, safi_t safi, enum bgp_show_type type)
718e3744 9996{
d62a17ae 9997 regex_t *regex;
9998 int rc;
e3e29b32 9999
c3900853
DA		 10000 if (!config_bgp_aspath_validate(regstr)) {
10001 vty_out(vty, "Invalid character in as-path access-list %s\n",
10002 regstr);
10003 return CMD_WARNING_CONFIG_FAILED;
10004 }
10005
d62a17ae 10006 regex = bgp_regcomp(regstr);
10007 if (!regex) {
10008 vty_out(vty, "Can't compile regexp %s\n", regstr);
10009 return CMD_WARNING;
10010 }
a636c635 10011
e889891d 10012 rc = bgp_show(vty, bgp, afi, safi, type, regex, 0);
d62a17ae 10013 bgp_regex_free(regex);
10014 return rc;
e3e29b32
LB		 10015}
10016
d62a17ae 10017static int bgp_show_prefix_list(struct vty *vty, struct bgp *bgp,
10018 const char *prefix_list_str, afi_t afi,
10019 safi_t safi, enum bgp_show_type type)
e3e29b32 10020{
d62a17ae 10021 struct prefix_list *plist;
718e3744 10022
d62a17ae 10023 plist = prefix_list_lookup(afi, prefix_list_str);
10024 if (plist == NULL) {
10025 vty_out(vty, "%% %s is not a valid prefix-list name\n",
10026 prefix_list_str);
10027 return CMD_WARNING;
10028 }
718e3744 10029
d62a17ae 10030 return bgp_show(vty, bgp, afi, safi, type, plist, 0);
4092b06c
DS		 10031}
10032
d62a17ae 10033static int bgp_show_filter_list(struct vty *vty, struct bgp *bgp,
10034 const char *filter, afi_t afi, safi_t safi,
10035 enum bgp_show_type type)
4092b06c 10036{
d62a17ae 10037 struct as_list *as_list;
718e3744 10038
d62a17ae 10039 as_list = as_list_lookup(filter);
10040 if (as_list == NULL) {
10041 vty_out(vty, "%% %s is not a valid AS-path access-list name\n",
10042 filter);
10043 return CMD_WARNING;
10044 }
a636c635 10045
d62a17ae 10046 return bgp_show(vty, bgp, afi, safi, type, as_list, 0);
718e3744 10047}
10048
d62a17ae 10049static int bgp_show_route_map(struct vty *vty, struct bgp *bgp,
10050 const char *rmap_str, afi_t afi, safi_t safi,
10051 enum bgp_show_type type)
718e3744 10052{
d62a17ae 10053 struct route_map *rmap;
bb46e94f 10054
d62a17ae 10055 rmap = route_map_lookup_by_name(rmap_str);
10056 if (!rmap) {
10057 vty_out(vty, "%% %s is not a valid route-map name\n", rmap_str);
10058 return CMD_WARNING;
10059 }
10060
10061 return bgp_show(vty, bgp, afi, safi, type, rmap, 0);
10062}
10063
7f323236
DW		 10064static int bgp_show_community(struct vty *vty, struct bgp *bgp,
10065 const char *comstr, int exact, afi_t afi,
9f049418 10066 safi_t safi, bool use_json)
d62a17ae 10067{
10068 struct community *com;
d62a17ae 10069 int ret = 0;
10070
7f323236 10071 com = community_str2com(comstr);
d62a17ae 10072 if (!com) {
7f323236 10073 vty_out(vty, "%% Community malformed: %s\n", comstr);
d62a17ae 10074 return CMD_WARNING;
10075 }
10076
10077 ret = bgp_show(vty, bgp, afi, safi,
10078 (exact ? bgp_show_type_community_exact
10079 : bgp_show_type_community),
d0086e8e 10080 com, use_json);
3c1f53de 10081 community_free(&com);
46c3ce83 10082
d62a17ae 10083 return ret;
718e3744 10084}
10085
d62a17ae 10086static int bgp_show_community_list(struct vty *vty, struct bgp *bgp,
10087 const char *com, int exact, afi_t afi,
10088 safi_t safi)
50ef26d4 10089{
d62a17ae 10090 struct community_list *list;
50ef26d4 10091
e237b0d2 10092 list = community_list_lookup(bgp_clist, com, 0, COMMUNITY_LIST_MASTER);
d62a17ae 10093 if (list == NULL) {
10094 vty_out(vty, "%% %s is not a valid community-list name\n", com);
10095 return CMD_WARNING;
10096 }
718e3744 10097
d62a17ae 10098 return bgp_show(vty, bgp, afi, safi,
10099 (exact ? bgp_show_type_community_list_exact
10100 : bgp_show_type_community_list),
10101 list, 0);
50ef26d4 10102}
10103
d62a17ae 10104static int bgp_show_prefix_longer(struct vty *vty, struct bgp *bgp,
10105 const char *prefix, afi_t afi, safi_t safi,
10106 enum bgp_show_type type)
718e3744 10107{
d62a17ae 10108 int ret;
10109 struct prefix *p;
47fc97cc 10110
d62a17ae 10111 p = prefix_new();
95cbbd2a 10112
d62a17ae 10113 ret = str2prefix(prefix, p);
10114 if (!ret) {
10115 vty_out(vty, "%% Malformed Prefix\n");
10116 return CMD_WARNING;
10117 }
47e9b292 10118
d62a17ae 10119 ret = bgp_show(vty, bgp, afi, safi, type, p, 0);
10120 prefix_free(p);
10121 return ret;
10122}
10123
10124static struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp,
9f049418 10125 const char *ip_str, bool use_json)
d62a17ae 10126{
10127 int ret;
10128 struct peer *peer;
10129 union sockunion su;
10130
10131 /* Get peer sockunion. */
10132 ret = str2sockunion(ip_str, &su);
10133 if (ret < 0) {
10134 peer = peer_lookup_by_conf_if(bgp, ip_str);
10135 if (!peer) {
10136 peer = peer_lookup_by_hostname(bgp, ip_str);
10137
10138 if (!peer) {
10139 if (use_json) {
10140 json_object *json_no = NULL;
10141 json_no = json_object_new_object();
10142 json_object_string_add(
10143 json_no,
10144 "malformedAddressOrName",
10145 ip_str);
10146 vty_out(vty, "%s\n",
66f80d74 10147 json_object_to_json_string_ext(
a4d82a8a
PZ		 10148 json_no,
10149 JSON_C_TO_STRING_PRETTY));
d62a17ae 10150 json_object_free(json_no);
10151 } else
10152 vty_out(vty,
10153 "%% Malformed address or name: %s\n",
10154 ip_str);
10155 return NULL;
10156 }
10157 }
10158 return peer;
10159 }
718e3744 10160
d62a17ae 10161 /* Peer structure lookup. */
10162 peer = peer_lookup(bgp, &su);
10163 if (!peer) {
10164 if (use_json) {
10165 json_object *json_no = NULL;
10166 json_no = json_object_new_object();
10167 json_object_string_add(json_no, "warning",
9e6e6f46 10168 "No such neighbor in this view/vrf");
d62a17ae 10169 vty_out(vty, "%s\n",
a4d82a8a
PZ		 10170 json_object_to_json_string_ext(
10171 json_no, JSON_C_TO_STRING_PRETTY));
d62a17ae 10172 json_object_free(json_no);
10173 } else
9e6e6f46 10174 vty_out(vty, "No such neighbor in this view/vrf\n");
d62a17ae 10175 return NULL;
10176 }
2815e61f 10177
d62a17ae 10178 return peer;
10179}
10180
10181enum bgp_stats {
10182 BGP_STATS_MAXBITLEN = 0,
10183 BGP_STATS_RIB,
10184 BGP_STATS_PREFIXES,
10185 BGP_STATS_TOTPLEN,
10186 BGP_STATS_UNAGGREGATEABLE,
10187 BGP_STATS_MAX_AGGREGATEABLE,
10188 BGP_STATS_AGGREGATES,
10189 BGP_STATS_SPACE,
10190 BGP_STATS_ASPATH_COUNT,
10191 BGP_STATS_ASPATH_MAXHOPS,
10192 BGP_STATS_ASPATH_TOTHOPS,
10193 BGP_STATS_ASPATH_MAXSIZE,
10194 BGP_STATS_ASPATH_TOTSIZE,
10195 BGP_STATS_ASN_HIGHEST,
10196 BGP_STATS_MAX,
a636c635 10197};
2815e61f 10198
d62a17ae 10199static const char *table_stats_strs[] = {
9d303b37
DL		 10200 [BGP_STATS_PREFIXES] = "Total Prefixes",
10201 [BGP_STATS_TOTPLEN] = "Average prefix length",
10202 [BGP_STATS_RIB] = "Total Advertisements",
10203 [BGP_STATS_UNAGGREGATEABLE] = "Unaggregateable prefixes",
10204 [BGP_STATS_MAX_AGGREGATEABLE] =
10205 "Maximum aggregateable prefixes",
10206 [BGP_STATS_AGGREGATES] = "BGP Aggregate advertisements",
10207 [BGP_STATS_SPACE] = "Address space advertised",
10208 [BGP_STATS_ASPATH_COUNT] = "Advertisements with paths",
10209 [BGP_STATS_ASPATH_MAXHOPS] = "Longest AS-Path (hops)",
10210 [BGP_STATS_ASPATH_MAXSIZE] = "Largest AS-Path (bytes)",
10211 [BGP_STATS_ASPATH_TOTHOPS] = "Average AS-Path length (hops)",
10212 [BGP_STATS_ASPATH_TOTSIZE] = "Average AS-Path size (bytes)",
10213 [BGP_STATS_ASN_HIGHEST] = "Highest public ASN",
10214 [BGP_STATS_MAX] = NULL,
a636c635 10215};
2815e61f 10216
d62a17ae 10217struct bgp_table_stats {
10218 struct bgp_table *table;
10219 unsigned long long counts[BGP_STATS_MAX];
8d0ab76d 10220 double total_space;
ff7924f6
PJ		 10221};
10222
a636c635
DW		 10223#if 0
10224#define TALLY_SIGFIG 100000
10225static unsigned long
10226ravg_tally (unsigned long count, unsigned long oldavg, unsigned long newval)
ff7924f6 10227{
a636c635
DW		 10228 unsigned long newtot = (count-1) * oldavg + (newval * TALLY_SIGFIG);
10229 unsigned long res = (newtot * TALLY_SIGFIG) / count;
10230 unsigned long ret = newtot / count;
07d0c4ed 10231
a636c635
DW		 10232 if ((res % TALLY_SIGFIG) > (TALLY_SIGFIG/2))
10233 return ret + 1;
10234 else
10235 return ret;
10236}
10237#endif
ff7924f6 10238
9c14ec72
RW		 10239static void bgp_table_stats_rn(struct bgp_node *rn, struct bgp_node *top,
10240 struct bgp_table_stats *ts, unsigned int space)
2815e61f 10241{
9c14ec72
RW		 10242 struct bgp_node *prn = bgp_node_parent_nolock(rn);
10243 struct bgp_path_info *pi;
d62a17ae 10244
9c14ec72
RW		 10245 if (rn == top)
10246 return;
d62a17ae 10247
9c14ec72
RW		 10248 if (!bgp_node_has_bgp_path_info_data(rn))
10249 return;
d62a17ae 10250
9c14ec72
RW		 10251 ts->counts[BGP_STATS_PREFIXES]++;
10252 ts->counts[BGP_STATS_TOTPLEN] += rn->p.prefixlen;
ff7924f6 10253
a636c635
DW		 10254#if 0
10255 ts->counts[BGP_STATS_AVGPLEN]
10256 = ravg_tally (ts->counts[BGP_STATS_PREFIXES],
10257 ts->counts[BGP_STATS_AVGPLEN],
10258 rn->p.prefixlen);
10259#endif
d62a17ae 10260
9c14ec72
RW		 10261 /* check if the prefix is included by any other announcements */
10262 while (prn && !bgp_node_has_bgp_path_info_data(prn))
10263 prn = bgp_node_parent_nolock(prn);
d62a17ae 10264
9c14ec72
RW		 10265 if (prn == NULL || prn == top) {
10266 ts->counts[BGP_STATS_UNAGGREGATEABLE]++;
10267 /* announced address space */
10268 if (space)
10269 ts->total_space += pow(2.0, space - rn->p.prefixlen);
10270 } else if (bgp_node_has_bgp_path_info_data(prn))
10271 ts->counts[BGP_STATS_MAX_AGGREGATEABLE]++;
d62a17ae 10272
9c14ec72
RW		 10273
10274 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
10275 ts->counts[BGP_STATS_RIB]++;
10276
10277 if (pi->attr
10278 && (CHECK_FLAG(pi->attr->flag,
10279 ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE))))
10280 ts->counts[BGP_STATS_AGGREGATES]++;
10281
10282 /* as-path stats */
10283 if (pi->attr && pi->attr->aspath) {
10284 unsigned int hops = aspath_count_hops(pi->attr->aspath);
10285 unsigned int size = aspath_size(pi->attr->aspath);
10286 as_t highest = aspath_highest(pi->attr->aspath);
10287
10288 ts->counts[BGP_STATS_ASPATH_COUNT]++;
10289
10290 if (hops > ts->counts[BGP_STATS_ASPATH_MAXHOPS])
10291 ts->counts[BGP_STATS_ASPATH_MAXHOPS] = hops;
10292
10293 if (size > ts->counts[BGP_STATS_ASPATH_MAXSIZE])
10294 ts->counts[BGP_STATS_ASPATH_MAXSIZE] = size;
10295
10296 ts->counts[BGP_STATS_ASPATH_TOTHOPS] += hops;
10297 ts->counts[BGP_STATS_ASPATH_TOTSIZE] += size;
a636c635 10298#if 0
07d0c4ed 10299 ts->counts[BGP_STATS_ASPATH_AVGHOPS]
a636c635
DW		 10300 = ravg_tally (ts->counts[BGP_STATS_ASPATH_COUNT],
10301 ts->counts[BGP_STATS_ASPATH_AVGHOPS],
10302 hops);
10303 ts->counts[BGP_STATS_ASPATH_AVGSIZE]
10304 = ravg_tally (ts->counts[BGP_STATS_ASPATH_COUNT],
10305 ts->counts[BGP_STATS_ASPATH_AVGSIZE],
10306 size);
10307#endif
9c14ec72
RW		 10308 if (highest > ts->counts[BGP_STATS_ASN_HIGHEST])
10309 ts->counts[BGP_STATS_ASN_HIGHEST] = highest;
10310 }
10311 }
10312}
10313
10314static int bgp_table_stats_walker(struct thread *t)
10315{
10316 struct bgp_node *rn, *nrn;
10317 struct bgp_node *top;
10318 struct bgp_table_stats *ts = THREAD_ARG(t);
10319 unsigned int space = 0;
10320
10321 if (!(top = bgp_table_top(ts->table)))
10322 return 0;
10323
10324 switch (ts->table->afi) {
10325 case AFI_IP:
10326 space = IPV4_MAX_BITLEN;
10327 break;
10328 case AFI_IP6:
10329 space = IPV6_MAX_BITLEN;
10330 break;
10331 default:
10332 return 0;
10333 }
10334
10335 ts->counts[BGP_STATS_MAXBITLEN] = space;
10336
10337 for (rn = top; rn; rn = bgp_route_next(rn)) {
10338 if (ts->table->safi == SAFI_MPLS_VPN) {
10339 struct bgp_table *table;
10340
10341 table = bgp_node_get_bgp_table_info(rn);
10342 if (!table)
10343 continue;
10344
10345 top = bgp_table_top(table);
10346 for (nrn = bgp_table_top(table); nrn;
10347 nrn = bgp_route_next(nrn))
10348 bgp_table_stats_rn(nrn, top, ts, space);
10349 } else {
10350 bgp_table_stats_rn(rn, top, ts, space);
d62a17ae 10351 }
10352 }
9c14ec72 10353
d62a17ae 10354 return 0;
2815e61f 10355}
ff7924f6 10356
d62a17ae 10357static int bgp_table_stats(struct vty *vty, struct bgp *bgp, afi_t afi,
10358 safi_t safi)
2815e61f 10359{
d62a17ae 10360 struct bgp_table_stats ts;
10361 unsigned int i;
019386c2 10362
d62a17ae 10363 if (!bgp->rib[afi][safi]) {
10364 vty_out(vty, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n",
10365 afi, safi);
10366 return CMD_WARNING;
10367 }
019386c2 10368
d62a17ae 10369 vty_out(vty, "BGP %s RIB statistics\n", afi_safi_print(afi, safi));
019386c2 10370
d62a17ae 10371 /* labeled-unicast routes live in the unicast table */
10372 if (safi == SAFI_LABELED_UNICAST)
10373 safi = SAFI_UNICAST;
019386c2 10374
d62a17ae 10375 memset(&ts, 0, sizeof(ts));
10376 ts.table = bgp->rib[afi][safi];
10377 thread_execute(bm->master, bgp_table_stats_walker, &ts, 0);
ff7924f6 10378
d62a17ae 10379 for (i = 0; i < BGP_STATS_MAX; i++) {
10380 if (!table_stats_strs[i])
10381 continue;
10382
10383 switch (i) {
a636c635
DW		 10384#if 0
10385 case BGP_STATS_ASPATH_AVGHOPS:
10386 case BGP_STATS_ASPATH_AVGSIZE:
10387 case BGP_STATS_AVGPLEN:
10388 vty_out (vty, "%-30s: ", table_stats_strs[i]);
10389 vty_out (vty, "%12.2f",
10390 (float)ts.counts[i] / (float)TALLY_SIGFIG);
10391 break;
10392#endif
d62a17ae 10393 case BGP_STATS_ASPATH_TOTHOPS:
10394 case BGP_STATS_ASPATH_TOTSIZE:
10395 vty_out(vty, "%-30s: ", table_stats_strs[i]);
10396 vty_out(vty, "%12.2f",
10397 ts.counts[i]
10398 ? (float)ts.counts[i]
10399 / (float)ts.counts
10400 [BGP_STATS_ASPATH_COUNT]
10401 : 0);
10402 break;
10403 case BGP_STATS_TOTPLEN:
10404 vty_out(vty, "%-30s: ", table_stats_strs[i]);
10405 vty_out(vty, "%12.2f",
10406 ts.counts[i]
10407 ? (float)ts.counts[i]
10408 / (float)ts.counts
10409 [BGP_STATS_PREFIXES]
10410 : 0);
10411 break;
10412 case BGP_STATS_SPACE:
10413 vty_out(vty, "%-30s: ", table_stats_strs[i]);
8d0ab76d
DL		 10414 vty_out(vty, "%12g\n", ts.total_space);
10415
10416 if (afi == AFI_IP6) {
10417 vty_out(vty, "%30s: ", "/32 equivalent ");
10418 vty_out(vty, "%12g\n",
a4d82a8a 10419 ts.total_space * pow(2.0, -128 + 32));
8d0ab76d
DL		 10420 vty_out(vty, "%30s: ", "/48 equivalent ");
10421 vty_out(vty, "%12g\n",
a4d82a8a 10422 ts.total_space * pow(2.0, -128 + 48));
8d0ab76d
DL		 10423 } else {
10424 vty_out(vty, "%30s: ", "% announced ");
10425 vty_out(vty, "%12.2f\n",
10426 ts.total_space * 100. * pow(2.0, -32));
10427 vty_out(vty, "%30s: ", "/8 equivalent ");
10428 vty_out(vty, "%12.2f\n",
a4d82a8a 10429 ts.total_space * pow(2.0, -32 + 8));
8d0ab76d
DL		 10430 vty_out(vty, "%30s: ", "/24 equivalent ");
10431 vty_out(vty, "%12.2f\n",
a4d82a8a 10432 ts.total_space * pow(2.0, -32 + 24));
8d0ab76d 10433 }
d62a17ae 10434 break;
10435 default:
10436 vty_out(vty, "%-30s: ", table_stats_strs[i]);
10437 vty_out(vty, "%12llu", ts.counts[i]);
10438 }
ff7924f6 10439
d62a17ae 10440 vty_out(vty, "\n");
10441 }
10442 return CMD_SUCCESS;
10443}
10444
10445enum bgp_pcounts {
10446 PCOUNT_ADJ_IN = 0,
10447 PCOUNT_DAMPED,
10448 PCOUNT_REMOVED,
10449 PCOUNT_HISTORY,
10450 PCOUNT_STALE,
10451 PCOUNT_VALID,
10452 PCOUNT_ALL,
10453 PCOUNT_COUNTED,
10454 PCOUNT_PFCNT, /* the figure we display to users */
10455 PCOUNT_MAX,
a636c635 10456};
718e3744 10457
d62a17ae 10458static const char *pcount_strs[] = {
9d303b37
DL		 10459 [PCOUNT_ADJ_IN] = "Adj-in",
10460 [PCOUNT_DAMPED] = "Damped",
10461 [PCOUNT_REMOVED] = "Removed",
10462 [PCOUNT_HISTORY] = "History",
10463 [PCOUNT_STALE] = "Stale",
10464 [PCOUNT_VALID] = "Valid",
10465 [PCOUNT_ALL] = "All RIB",
10466 [PCOUNT_COUNTED] = "PfxCt counted",
10467 [PCOUNT_PFCNT] = "Useable",
10468 [PCOUNT_MAX] = NULL,
a636c635 10469};
718e3744 10470
d62a17ae 10471struct peer_pcounts {
10472 unsigned int count[PCOUNT_MAX];
10473 const struct peer *peer;
10474 const struct bgp_table *table;
a636c635 10475};
47fc97cc 10476
d62a17ae 10477static int bgp_peer_count_walker(struct thread *t)
10478{
10479 struct bgp_node *rn;
10480 struct peer_pcounts *pc = THREAD_ARG(t);
10481 const struct peer *peer = pc->peer;
10482
10483 for (rn = bgp_table_top(pc->table); rn; rn = bgp_route_next(rn)) {
10484 struct bgp_adj_in *ain;
40381db7 10485 struct bgp_path_info *pi;
d62a17ae 10486
10487 for (ain = rn->adj_in; ain; ain = ain->next)
10488 if (ain->peer == peer)
10489 pc->count[PCOUNT_ADJ_IN]++;
10490
6f94b685
DS		 10491 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
10492
40381db7 10493 if (pi->peer != peer)
d62a17ae 10494 continue;
10495
10496 pc->count[PCOUNT_ALL]++;
10497
40381db7 10498 if (CHECK_FLAG(pi->flags, BGP_PATH_DAMPED))
d62a17ae 10499 pc->count[PCOUNT_DAMPED]++;
40381db7 10500 if (CHECK_FLAG(pi->flags, BGP_PATH_HISTORY))
d62a17ae 10501 pc->count[PCOUNT_HISTORY]++;
40381db7 10502 if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED))
d62a17ae 10503 pc->count[PCOUNT_REMOVED]++;
40381db7 10504 if (CHECK_FLAG(pi->flags, BGP_PATH_STALE))
d62a17ae 10505 pc->count[PCOUNT_STALE]++;
40381db7 10506 if (CHECK_FLAG(pi->flags, BGP_PATH_VALID))
d62a17ae 10507 pc->count[PCOUNT_VALID]++;
40381db7 10508 if (!CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE))
d62a17ae 10509 pc->count[PCOUNT_PFCNT]++;
10510
40381db7 10511 if (CHECK_FLAG(pi->flags, BGP_PATH_COUNTED)) {
d62a17ae 10512 pc->count[PCOUNT_COUNTED]++;
40381db7 10513 if (CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE))
1c50c1c0
QY		 10514 flog_err(
10515 EC_LIB_DEVELOPMENT,
10516 "Attempting to count but flags say it is unusable");
d62a17ae 10517 } else {
40381db7 10518 if (!CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE))
1c50c1c0
QY		 10519 flog_err(
10520 EC_LIB_DEVELOPMENT,
10521 "Not counted but flags say we should");
d62a17ae 10522 }
10523 }
10524 }
10525 return 0;
718e3744 10526}
10527
d62a17ae 10528static int bgp_peer_counts(struct vty *vty, struct peer *peer, afi_t afi,
9f049418 10529 safi_t safi, bool use_json)
856ca177 10530{
d62a17ae 10531 struct peer_pcounts pcounts = {.peer = peer};
10532 unsigned int i;
10533 json_object *json = NULL;
10534 json_object *json_loop = NULL;
856ca177 10535
d62a17ae 10536 if (use_json) {
10537 json = json_object_new_object();
10538 json_loop = json_object_new_object();
10539 }
718e3744 10540
d62a17ae 10541 if (!peer || !peer->bgp || !peer->afc[afi][safi]
10542 || !peer->bgp->rib[afi][safi]) {
10543 if (use_json) {
10544 json_object_string_add(
10545 json, "warning",
10546 "No such neighbor or address family");
10547 vty_out(vty, "%s\n", json_object_to_json_string(json));
10548 json_object_free(json);
10549 } else
10550 vty_out(vty, "%% No such neighbor or address family\n");
10551
10552 return CMD_WARNING;
10553 }
2a71e9ce 10554
d62a17ae 10555 memset(&pcounts, 0, sizeof(pcounts));
10556 pcounts.peer = peer;
10557 pcounts.table = peer->bgp->rib[afi][safi];
10558
10559 /* in-place call via thread subsystem so as to record execution time
d316210b
PZ		 10560 * stats for the thread-walk (i.e. ensure this can't be blamed on
10561 * on just vty_read()).
10562 */
d62a17ae 10563 thread_execute(bm->master, bgp_peer_count_walker, &pcounts, 0);
10564
10565 if (use_json) {
10566 json_object_string_add(json, "prefixCountsFor", peer->host);
10567 json_object_string_add(json, "multiProtocol",
10568 afi_safi_print(afi, safi));
10569 json_object_int_add(json, "pfxCounter",
10570 peer->pcount[afi][safi]);
10571
10572 for (i = 0; i < PCOUNT_MAX; i++)
10573 json_object_int_add(json_loop, pcount_strs[i],
10574 pcounts.count[i]);
10575
10576 json_object_object_add(json, "ribTableWalkCounters", json_loop);
10577
10578 if (pcounts.count[PCOUNT_PFCNT] != peer->pcount[afi][safi]) {
10579 json_object_string_add(json, "pfxctDriftFor",
10580 peer->host);
10581 json_object_string_add(
10582 json, "recommended",
10583 "Please report this bug, with the above command output");
10584 }
996c9314
LB		 10585 vty_out(vty, "%s\n", json_object_to_json_string_ext(
10586 json, JSON_C_TO_STRING_PRETTY));
d62a17ae 10587 json_object_free(json);
10588 } else {
10589
10590 if (peer->hostname
10591 && bgp_flag_check(peer->bgp, BGP_FLAG_SHOW_HOSTNAME)) {
10592 vty_out(vty, "Prefix counts for %s/%s, %s\n",
10593 peer->hostname, peer->host,
10594 afi_safi_print(afi, safi));
10595 } else {
10596 vty_out(vty, "Prefix counts for %s, %s\n", peer->host,
10597 afi_safi_print(afi, safi));
10598 }
10599
10600 vty_out(vty, "PfxCt: %ld\n", peer->pcount[afi][safi]);
10601 vty_out(vty, "\nCounts from RIB table walk:\n\n");
10602
10603 for (i = 0; i < PCOUNT_MAX; i++)
10604 vty_out(vty, "%20s: %-10d\n", pcount_strs[i],
10605 pcounts.count[i]);
10606
10607 if (pcounts.count[PCOUNT_PFCNT] != peer->pcount[afi][safi]) {
10608 vty_out(vty, "%s [pcount] PfxCt drift!\n", peer->host);
10609 vty_out(vty,
10610 "Please report this bug, with the above command output\n");
10611 }
10612 }
10613
10614 return CMD_SUCCESS;
718e3744 10615}
10616
a636c635
DW		 10617DEFUN (show_ip_bgp_instance_neighbor_prefix_counts,
10618 show_ip_bgp_instance_neighbor_prefix_counts_cmd,
c1a44e43 10619 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_CMD_STR"]] "
30a6a167 10620 "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
718e3744 10621 SHOW_STR
10622 IP_STR
10623 BGP_STR
8386ac43 10624 BGP_INSTANCE_HELP_STR
9bedbb1e
DW		 10625 BGP_AFI_HELP_STR
10626 BGP_SAFI_HELP_STR
0b16f239
DS		 10627 "Detailed information on TCP and BGP neighbor connections\n"
10628 "Neighbor to display information about\n"
10629 "Neighbor to display information about\n"
91d37724 10630 "Neighbor on BGP configured interface\n"
a636c635 10631 "Display detailed prefix count information\n"
9973d184 10632 JSON_STR)
0b16f239 10633{
d62a17ae 10634 afi_t afi = AFI_IP6;
10635 safi_t safi = SAFI_UNICAST;
10636 struct peer *peer;
10637 int idx = 0;
10638 struct bgp *bgp = NULL;
9f049418
DS		 10639 bool uj = use_json(argc, argv);
10640
10641 if (uj)
10642 argc--;
856ca177 10643
d62a17ae 10644 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 10645 &bgp, uj);
d62a17ae 10646 if (!idx)
10647 return CMD_WARNING;
0b16f239 10648
d62a17ae 10649 argv_find(argv, argc, "neighbors", &idx);
10650 peer = peer_lookup_in_view(vty, bgp, argv[idx + 1]->arg, uj);
10651 if (!peer)
10652 return CMD_WARNING;
bb46e94f 10653
d62a17ae 10654 return bgp_peer_counts(vty, peer, AFI_IP, SAFI_UNICAST, uj);
a636c635 10655}
0b16f239 10656
d6902373
PG		 10657#ifdef KEEP_OLD_VPN_COMMANDS
10658DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts,
10659 show_ip_bgp_vpn_neighbor_prefix_counts_cmd,
10660 "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
2a71e9ce
TP		 10661 SHOW_STR
10662 IP_STR
10663 BGP_STR
d6902373 10664 BGP_VPNVX_HELP_STR
91d37724 10665 "Display information about all VPNv4 NLRIs\n"
2a71e9ce
TP		 10666 "Detailed information on TCP and BGP neighbor connections\n"
10667 "Neighbor to display information about\n"
10668 "Neighbor to display information about\n"
91d37724 10669 "Neighbor on BGP configured interface\n"
a636c635 10670 "Display detailed prefix count information\n"
9973d184 10671 JSON_STR)
a636c635 10672{
d62a17ae 10673 int idx_peer = 6;
10674 struct peer *peer;
9f049418 10675 bool uj = use_json(argc, argv);
a636c635 10676
d62a17ae 10677 peer = peer_lookup_in_view(vty, NULL, argv[idx_peer]->arg, uj);
10678 if (!peer)
10679 return CMD_WARNING;
10680
10681 return bgp_peer_counts(vty, peer, AFI_IP, SAFI_MPLS_VPN, uj);
a636c635
DW		 10682}
10683
d6902373
PG		 10684DEFUN (show_ip_bgp_vpn_all_route_prefix,
10685 show_ip_bgp_vpn_all_route_prefix_cmd,
10686 "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]",
91d37724
QY		 10687 SHOW_STR
10688 IP_STR
10689 BGP_STR
d6902373 10690 BGP_VPNVX_HELP_STR
91d37724
QY		 10691 "Display information about all VPNv4 NLRIs\n"
10692 "Network in the BGP routing table to display\n"
3a2d747c 10693 "Network in the BGP routing table to display\n"
9973d184 10694 JSON_STR)
91d37724 10695{
d62a17ae 10696 int idx = 0;
10697 char *network = NULL;
10698 struct bgp *bgp = bgp_get_default();
10699 if (!bgp) {
10700 vty_out(vty, "Can't find default instance\n");
10701 return CMD_WARNING;
10702 }
87e34b58 10703
d62a17ae 10704 if (argv_find(argv, argc, "A.B.C.D", &idx))
10705 network = argv[idx]->arg;
10706 else if (argv_find(argv, argc, "A.B.C.D/M", &idx))
10707 network = argv[idx]->arg;
10708 else {
10709 vty_out(vty, "Unable to figure out Network\n");
10710 return CMD_WARNING;
10711 }
87e34b58 10712
d62a17ae 10713 return bgp_show_route(vty, bgp, network, AFI_IP, SAFI_MPLS_VPN, NULL, 0,
360660c6 10714 BGP_PATH_SHOW_ALL, use_json(argc, argv));
91d37724 10715}
d6902373 10716#endif /* KEEP_OLD_VPN_COMMANDS */
91d37724 10717
4c63a661
PG		 10718DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix,
10719 show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd,
10720 "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]",
10721 SHOW_STR
10722 IP_STR
10723 BGP_STR
10724 L2VPN_HELP_STR
10725 EVPN_HELP_STR
10726 "Display information about all EVPN NLRIs\n"
10727 "Network in the BGP routing table to display\n"
10728 "Network in the BGP routing table to display\n"
10729 JSON_STR)
10730{
d62a17ae 10731 int idx = 0;
10732 char *network = NULL;
a636c635 10733
d62a17ae 10734 if (argv_find(argv, argc, "A.B.C.D", &idx))
10735 network = argv[idx]->arg;
10736 else if (argv_find(argv, argc, "A.B.C.D/M", &idx))
10737 network = argv[idx]->arg;
10738 else {
10739 vty_out(vty, "Unable to figure out Network\n");
10740 return CMD_WARNING;
10741 }
10742 return bgp_show_route(vty, NULL, network, AFI_L2VPN, SAFI_EVPN, NULL, 0,
360660c6 10743 BGP_PATH_SHOW_ALL, use_json(argc, argv));
d62a17ae 10744}
10745
10746static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi,
6392aaa6 10747 safi_t safi, enum bgp_show_adj_route_type type,
9f049418 10748 const char *rmap_name, bool use_json,
6392aaa6 10749 json_object *json)
d62a17ae 10750{
10751 struct bgp_table *table;
10752 struct bgp_adj_in *ain;
10753 struct bgp_adj_out *adj;
10754 unsigned long output_count;
10755 unsigned long filtered_count;
10756 struct bgp_node *rn;
10757 int header1 = 1;
10758 struct bgp *bgp;
10759 int header2 = 1;
10760 struct attr attr;
10761 int ret;
10762 struct update_subgroup *subgrp;
10763 json_object *json_scode = NULL;
10764 json_object *json_ocode = NULL;
10765 json_object *json_ar = NULL;
10766 struct peer_af *paf;
f99def61 10767 bool route_filtered;
d62a17ae 10768
10769 if (use_json) {
10770 json_scode = json_object_new_object();
10771 json_ocode = json_object_new_object();
10772 json_ar = json_object_new_object();
10773
10774 json_object_string_add(json_scode, "suppressed", "s");
10775 json_object_string_add(json_scode, "damped", "d");
10776 json_object_string_add(json_scode, "history", "h");
10777 json_object_string_add(json_scode, "valid", "*");
10778 json_object_string_add(json_scode, "best", ">");
10779 json_object_string_add(json_scode, "multipath", "=");
10780 json_object_string_add(json_scode, "internal", "i");
10781 json_object_string_add(json_scode, "ribFailure", "r");
10782 json_object_string_add(json_scode, "stale", "S");
10783 json_object_string_add(json_scode, "removed", "R");
10784
10785 json_object_string_add(json_ocode, "igp", "i");
10786 json_object_string_add(json_ocode, "egp", "e");
10787 json_object_string_add(json_ocode, "incomplete", "?");
10788 }
a636c635 10789
d62a17ae 10790 bgp = peer->bgp;
a636c635 10791
d62a17ae 10792 if (!bgp) {
10793 if (use_json) {
10794 json_object_string_add(json, "alert", "no BGP");
10795 vty_out(vty, "%s\n", json_object_to_json_string(json));
10796 json_object_free(json);
10797 } else
10798 vty_out(vty, "%% No bgp\n");
10799 return;
10800 }
a636c635 10801
c512a642
EDP		 10802 /* labeled-unicast routes live in the unicast table */
10803 if (safi == SAFI_LABELED_UNICAST)
10804 table = bgp->rib[afi][SAFI_UNICAST];
10805 else
10806 table = bgp->rib[afi][safi];
d62a17ae 10807
10808 output_count = filtered_count = 0;
10809 subgrp = peer_subgroup(peer, afi, safi);
10810
6392aaa6 10811 if (type == bgp_show_adj_route_advertised && subgrp
d62a17ae 10812 && CHECK_FLAG(subgrp->sflags, SUBGRP_STATUS_DEFAULT_ORIGINATE)) {
10813 if (use_json) {
10814 json_object_int_add(json, "bgpTableVersion",
10815 table->version);
10816 json_object_string_add(json, "bgpLocalRouterId",
10817 inet_ntoa(bgp->router_id));
01eced22
AD		 10818 json_object_int_add(json, "defaultLocPrf",
10819 bgp->default_local_pref);
10820 json_object_int_add(json, "localAS", bgp->as);
d62a17ae 10821 json_object_object_add(json, "bgpStatusCodes",
10822 json_scode);
10823 json_object_object_add(json, "bgpOriginCodes",
10824 json_ocode);
07d0c4ed
DA		 10825 json_object_string_add(
10826 json, "bgpOriginatingDefaultNetwork",
10827 (afi == AFI_IP) ? "0.0.0.0/0" : "::/0");
d62a17ae 10828 } else {
996c9314 10829 vty_out(vty, "BGP table version is %" PRIu64
9df8b37c 10830 ", local router ID is %s, vrf id ",
d62a17ae 10831 table->version, inet_ntoa(bgp->router_id));
9df8b37c
PZ		 10832 if (bgp->vrf_id == VRF_UNKNOWN)
10833 vty_out(vty, "%s", VRFID_NONE_STR);
10834 else
10835 vty_out(vty, "%u", bgp->vrf_id);
10836 vty_out(vty, "\n");
01eced22
AD		 10837 vty_out(vty, "Default local pref %u, ",
10838 bgp->default_local_pref);
10839 vty_out(vty, "local AS %u\n", bgp->as);
d62a17ae 10840 vty_out(vty, BGP_SHOW_SCODE_HEADER);
9df8b37c 10841 vty_out(vty, BGP_SHOW_NCODE_HEADER);
d62a17ae 10842 vty_out(vty, BGP_SHOW_OCODE_HEADER);
10843
07d0c4ed
DA		 10844 vty_out(vty, "Originating default network %s\n\n",
10845 (afi == AFI_IP) ? "0.0.0.0/0" : "::/0");
d62a17ae 10846 }
10847 header1 = 0;
10848 }
a636c635 10849
d62a17ae 10850 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
6392aaa6
PM		 10851 if (type == bgp_show_adj_route_received
10852 || type == bgp_show_adj_route_filtered) {
d62a17ae 10853 for (ain = rn->adj_in; ain; ain = ain->next) {
6392aaa6 10854 if (ain->peer != peer || !ain->attr)
ea47320b 10855 continue;
6392aaa6 10856
ea47320b
DL		 10857 if (header1) {
10858 if (use_json) {
10859 json_object_int_add(
60466a63 10860 json, "bgpTableVersion",
ea47320b
DL		 10861 0);
10862 json_object_string_add(
10863 json,
10864 "bgpLocalRouterId",
10865 inet_ntoa(
10866 bgp->router_id));
01eced22
AD		 10867 json_object_int_add(json,
10868 "defaultLocPrf",
10869 bgp->default_local_pref);
10870 json_object_int_add(json,
10871 "localAS", bgp->as);
ea47320b 10872 json_object_object_add(
60466a63 10873 json, "bgpStatusCodes",
ea47320b
DL		 10874 json_scode);
10875 json_object_object_add(
60466a63 10876 json, "bgpOriginCodes",
ea47320b
DL		 10877 json_ocode);
10878 } else {
10879 vty_out(vty,
9df8b37c 10880 "BGP table version is 0, local router ID is %s, vrf id ",
ea47320b 10881 inet_ntoa(
9df8b37c
PZ		 10882 bgp->router_id));
10883 if (bgp->vrf_id == VRF_UNKNOWN)
10884 vty_out(vty, "%s",
10885 VRFID_NONE_STR);
10886 else
10887 vty_out(vty, "%u",
10888 bgp->vrf_id);
10889 vty_out(vty, "\n");
01eced22
AD		 10890 vty_out(vty,
10891 "Default local pref %u, ",
10892 bgp->default_local_pref);
10893 vty_out(vty, "local AS %u\n",
10894 bgp->as);
ea47320b
DL		 10895 vty_out(vty,
10896 BGP_SHOW_SCODE_HEADER);
9df8b37c
PZ		 10897 vty_out(vty,
10898 BGP_SHOW_NCODE_HEADER);
ea47320b
DL		 10899 vty_out(vty,
10900 BGP_SHOW_OCODE_HEADER);
d62a17ae 10901 }
ea47320b
DL		 10902 header1 = 0;
10903 }
10904 if (header2) {
10905 if (!use_json)
10906 vty_out(vty, BGP_SHOW_HEADER);
10907 header2 = 0;
10908 }
6392aaa6
PM		 10909
10910 bgp_attr_dup(&attr, ain->attr);
f99def61
AD		 10911 route_filtered = false;
10912
10913 /* Filter prefix using distribute list,
10914 * filter list or prefix list
10915 */
10916 if ((bgp_input_filter(peer, &rn->p, &attr, afi,
10917 safi)) == FILTER_DENY)
10918 route_filtered = true;
10919
10920 /* Filter prefix using route-map */
6392aaa6 10921 ret = bgp_input_modifier(peer, &rn->p, &attr,
13c8e163 10922 afi, safi, rmap_name);
6392aaa6 10923
13c8e163
AD		 10924 if (type == bgp_show_adj_route_filtered &&
10925 !route_filtered && ret != RMAP_DENY) {
b755861b 10926 bgp_attr_undup(&attr, ain->attr);
6392aaa6 10927 continue;
d62a17ae 10928 }
6392aaa6 10929
13c8e163
AD		 10930 if (type == bgp_show_adj_route_received &&
10931 (route_filtered || ret == RMAP_DENY))
6392aaa6
PM		 10932 filtered_count++;
10933
10934 route_vty_out_tmp(vty, &rn->p, &attr, safi,
10935 use_json, json_ar);
b755861b 10936 bgp_attr_undup(&attr, ain->attr);
6392aaa6 10937 output_count++;
d62a17ae 10938 }
6392aaa6 10939 } else if (type == bgp_show_adj_route_advertised) {
a79c04e7 10940 RB_FOREACH (adj, bgp_adj_out_rb, &rn->adj_out)
924c3f6a 10941 SUBGRP_FOREACH_PEER (adj->subgroup, paf) {
b755861b 10942 if (paf->peer != peer || !adj->attr)
924c3f6a 10943 continue;
d62a17ae 10944
924c3f6a
DS		 10945 if (header1) {
10946 if (use_json) {
10947 json_object_int_add(
10948 json,
10949 "bgpTableVersion",
10950 table->version);
10951 json_object_string_add(
10952 json,
10953 "bgpLocalRouterId",
10954 inet_ntoa(
10955 bgp->router_id));
01eced22
AD		 10956 json_object_int_add(
10957 json, "defaultLocPrf",
10958 bgp->default_local_pref
10959 );
10960 json_object_int_add(
10961 json, "localAS",
10962 bgp->as);
924c3f6a
DS		 10963 json_object_object_add(
10964 json,
10965 "bgpStatusCodes",
10966 json_scode);
10967 json_object_object_add(
10968 json,
10969 "bgpOriginCodes",
10970 json_ocode);
10971 } else {
10972 vty_out(vty,
10973 "BGP table version is %" PRIu64
9df8b37c 10974 ", local router ID is %s, vrf id ",
924c3f6a
DS		 10975 table->version,
10976 inet_ntoa(
10977 bgp->router_id));
9df8b37c
PZ		 10978 if (bgp->vrf_id ==
10979 VRF_UNKNOWN)
10980 vty_out(vty,
10981 "%s",
10982 VRFID_NONE_STR);
10983 else
10984 vty_out(vty,
10985 "%u",
10986 bgp->vrf_id);
10987 vty_out(vty, "\n");
01eced22
AD		 10988 vty_out(vty,
10989 "Default local pref %u, ",
10990 bgp->default_local_pref
10991 );
10992 vty_out(vty,
10993 "local AS %u\n",
10994 bgp->as);
924c3f6a
DS		 10995 vty_out(vty,
10996 BGP_SHOW_SCODE_HEADER);
9df8b37c
PZ		 10997 vty_out(vty,
10998 BGP_SHOW_NCODE_HEADER);
924c3f6a
DS		 10999 vty_out(vty,
11000 BGP_SHOW_OCODE_HEADER);
a2addae8 11001 }
924c3f6a
DS		 11002 header1 = 0;
11003 }
924c3f6a
DS		 11004 if (header2) {
11005 if (!use_json)
11006 vty_out(vty,
11007 BGP_SHOW_HEADER);
11008 header2 = 0;
11009 }
d62a17ae 11010
b755861b
PM		 11011 bgp_attr_dup(&attr, adj->attr);
11012 ret = bgp_output_modifier(
11013 peer, &rn->p, &attr, afi, safi,
11014 rmap_name);
f46d8e1e 11015
b755861b
PM		 11016 if (ret != RMAP_DENY) {
11017 route_vty_out_tmp(vty, &rn->p,
11018 &attr, safi,
11019 use_json,
11020 json_ar);
11021 output_count++;
11022 } else {
11023 filtered_count++;
a2addae8 11024 }
b755861b
PM		 11025
11026 bgp_attr_undup(&attr, adj->attr);
924c3f6a 11027 }
d62a17ae 11028 }
11029 }
d62a17ae 11030
d62a17ae 11031 if (use_json) {
6392aaa6
PM		 11032 json_object_object_add(json, "advertisedRoutes", json_ar);
11033 json_object_int_add(json, "totalPrefixCounter", output_count);
11034 json_object_int_add(json, "filteredPrefixCounter",
11035 filtered_count);
11036
996c9314
LB		 11037 vty_out(vty, "%s\n", json_object_to_json_string_ext(
11038 json, JSON_C_TO_STRING_PRETTY));
d62a17ae 11039 json_object_free(json);
6392aaa6
PM		 11040 } else if (output_count > 0) {
11041 if (filtered_count > 0)
11042 vty_out(vty,
11043 "\nTotal number of prefixes %ld (%ld filtered)\n",
11044 output_count, filtered_count);
11045 else
11046 vty_out(vty, "\nTotal number of prefixes %ld\n",
11047 output_count);
d62a17ae 11048 }
a636c635 11049}
2a71e9ce 11050
d62a17ae 11051static int peer_adj_routes(struct vty *vty, struct peer *peer, afi_t afi,
6392aaa6 11052 safi_t safi, enum bgp_show_adj_route_type type,
9f049418 11053 const char *rmap_name, bool use_json)
0b16f239 11054{
d62a17ae 11055 json_object *json = NULL;
0b16f239 11056
d62a17ae 11057 if (use_json)
11058 json = json_object_new_object();
0b16f239 11059
d62a17ae 11060 if (!peer || !peer->afc[afi][safi]) {
11061 if (use_json) {
11062 json_object_string_add(
11063 json, "warning",
11064 "No such neighbor or address family");
11065 vty_out(vty, "%s\n", json_object_to_json_string(json));
11066 json_object_free(json);
11067 } else
11068 vty_out(vty, "%% No such neighbor or address family\n");
0b16f239 11069
d62a17ae 11070 return CMD_WARNING;
11071 }
11072
6392aaa6
PM		 11073 if ((type == bgp_show_adj_route_received
11074 || type == bgp_show_adj_route_filtered)
d62a17ae 11075 && !CHECK_FLAG(peer->af_flags[afi][safi],
11076 PEER_FLAG_SOFT_RECONFIG)) {
11077 if (use_json) {
11078 json_object_string_add(
11079 json, "warning",
11080 "Inbound soft reconfiguration not enabled");
11081 vty_out(vty, "%s\n", json_object_to_json_string(json));
11082 json_object_free(json);
11083 } else
11084 vty_out(vty,
11085 "%% Inbound soft reconfiguration not enabled\n");
11086
11087 return CMD_WARNING;
11088 }
0b16f239 11089
6392aaa6 11090 show_adj_route(vty, peer, afi, safi, type, rmap_name, use_json, json);
0b16f239 11091
d62a17ae 11092 return CMD_SUCCESS;
a636c635 11093}
50ef26d4 11094
a636c635
DW		 11095DEFUN (show_ip_bgp_instance_neighbor_advertised_route,
11096 show_ip_bgp_instance_neighbor_advertised_route_cmd,
4dd6177e 11097 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] "
6392aaa6 11098 "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]",
718e3744 11099 SHOW_STR
11100 IP_STR
11101 BGP_STR
a636c635 11102 BGP_INSTANCE_HELP_STR
7395a2c9 11103 BGP_AFI_HELP_STR
4dd6177e 11104 BGP_SAFI_WITH_LABEL_HELP_STR
718e3744 11105 "Detailed information on TCP and BGP neighbor connections\n"
11106 "Neighbor to display information about\n"
11107 "Neighbor to display information about\n"
91d37724 11108 "Neighbor on BGP configured interface\n"
a636c635 11109 "Display the routes advertised to a BGP neighbor\n"
6392aaa6
PM		 11110 "Display the received routes from neighbor\n"
11111 "Display the filtered routes received from neighbor\n"
a636c635
DW		 11112 "Route-map to modify the attributes\n"
11113 "Name of the route map\n"
9973d184 11114 JSON_STR)
718e3744 11115{
d62a17ae 11116 afi_t afi = AFI_IP6;
11117 safi_t safi = SAFI_UNICAST;
11118 char *rmap_name = NULL;
11119 char *peerstr = NULL;
d62a17ae 11120 struct bgp *bgp = NULL;
11121 struct peer *peer;
6392aaa6 11122 enum bgp_show_adj_route_type type = bgp_show_adj_route_advertised;
d62a17ae 11123 int idx = 0;
9f049418 11124 bool uj = use_json(argc, argv);
6392aaa6 11125
d62a17ae 11126 if (uj)
11127 argc--;
30a6a167 11128
9f049418
DS		 11129 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
11130 &bgp, uj);
11131 if (!idx)
11132 return CMD_WARNING;
11133
d62a17ae 11134 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11135 argv_find(argv, argc, "neighbors", &idx);
11136 peerstr = argv[++idx]->arg;
8c3deaae 11137
d62a17ae 11138 peer = peer_lookup_in_view(vty, bgp, peerstr, uj);
11139 if (!peer)
11140 return CMD_WARNING;
856ca177 11141
d62a17ae 11142 if (argv_find(argv, argc, "advertised-routes", &idx))
6392aaa6
PM		 11143 type = bgp_show_adj_route_advertised;
11144 else if (argv_find(argv, argc, "received-routes", &idx))
11145 type = bgp_show_adj_route_received;
11146 else if (argv_find(argv, argc, "filtered-routes", &idx))
11147 type = bgp_show_adj_route_filtered;
11148
d62a17ae 11149 if (argv_find(argv, argc, "route-map", &idx))
11150 rmap_name = argv[++idx]->arg;
95cbbd2a 11151
6392aaa6 11152 return peer_adj_routes(vty, peer, afi, safi, type, rmap_name, uj);
95cbbd2a
ML		 11153}
11154
718e3744 11155DEFUN (show_ip_bgp_neighbor_received_prefix_filter,
11156 show_ip_bgp_neighbor_received_prefix_filter_cmd,
8c3deaae 11157 "show [ip] bgp [<ipv4|ipv6> [unicast]] neighbors <A.B.C.D|X:X::X:X|WORD> received prefix-filter [json]",
718e3744 11158 SHOW_STR
11159 IP_STR
11160 BGP_STR
8c3deaae
QY		 11161 "Address Family\n"
11162 "Address Family\n"
718e3744 11163 "Address Family modifier\n"
11164 "Detailed information on TCP and BGP neighbor connections\n"
11165 "Neighbor to display information about\n"
11166 "Neighbor to display information about\n"
91d37724 11167 "Neighbor on BGP configured interface\n"
718e3744 11168 "Display information received from a BGP neighbor\n"
856ca177 11169 "Display the prefixlist filter\n"
9973d184 11170 JSON_STR)
718e3744 11171{
d62a17ae 11172 afi_t afi = AFI_IP6;
11173 safi_t safi = SAFI_UNICAST;
11174 char *peerstr = NULL;
11175
11176 char name[BUFSIZ];
11177 union sockunion su;
11178 struct peer *peer;
11179 int count, ret;
11180
11181 int idx = 0;
11182
11183 /* show [ip] bgp */
11184 if (argv_find(argv, argc, "ip", &idx))
11185 afi = AFI_IP;
11186 /* [<ipv4|ipv6> [unicast]] */
11187 if (argv_find(argv, argc, "ipv4", &idx))
11188 afi = AFI_IP;
11189 if (argv_find(argv, argc, "ipv6", &idx))
11190 afi = AFI_IP6;
11191 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11192 argv_find(argv, argc, "neighbors", &idx);
11193 peerstr = argv[++idx]->arg;
11194
9f049418 11195 bool uj = use_json(argc, argv);
d62a17ae 11196
11197 ret = str2sockunion(peerstr, &su);
11198 if (ret < 0) {
11199 peer = peer_lookup_by_conf_if(NULL, peerstr);
11200 if (!peer) {
11201 if (uj)
11202 vty_out(vty, "{}\n");
11203 else
11204 vty_out(vty,
11205 "%% Malformed address or name: %s\n",
11206 peerstr);
11207 return CMD_WARNING;
11208 }
11209 } else {
11210 peer = peer_lookup(NULL, &su);
11211 if (!peer) {
11212 if (uj)
11213 vty_out(vty, "{}\n");
11214 else
11215 vty_out(vty, "No peer\n");
11216 return CMD_WARNING;
11217 }
11218 }
718e3744 11219
d62a17ae 11220 sprintf(name, "%s.%d.%d", peer->host, afi, safi);
11221 count = prefix_bgp_show_prefix_list(NULL, afi, name, uj);
11222 if (count) {
11223 if (!uj)
11224 vty_out(vty, "Address Family: %s\n",
11225 afi_safi_print(afi, safi));
11226 prefix_bgp_show_prefix_list(vty, afi, name, uj);
11227 } else {
11228 if (uj)
11229 vty_out(vty, "{}\n");
11230 else
11231 vty_out(vty, "No functional output\n");
11232 }
718e3744 11233
d62a17ae 11234 return CMD_SUCCESS;
11235}
11236
11237static int bgp_show_neighbor_route(struct vty *vty, struct peer *peer,
11238 afi_t afi, safi_t safi,
9f049418 11239 enum bgp_show_type type, bool use_json)
d62a17ae 11240{
8a893163
DW		 11241 /* labeled-unicast routes live in the unicast table */
11242 if (safi == SAFI_LABELED_UNICAST)
11243 safi = SAFI_UNICAST;
11244
d62a17ae 11245 if (!peer || !peer->afc[afi][safi]) {
11246 if (use_json) {
11247 json_object *json_no = NULL;
11248 json_no = json_object_new_object();
11249 json_object_string_add(
11250 json_no, "warning",
11251 "No such neighbor or address family");
11252 vty_out(vty, "%s\n",
11253 json_object_to_json_string(json_no));
11254 json_object_free(json_no);
11255 } else
11256 vty_out(vty, "%% No such neighbor or address family\n");
11257 return CMD_WARNING;
11258 }
47fc97cc 11259
d62a17ae 11260 return bgp_show(vty, peer->bgp, afi, safi, type, &peer->su, use_json);
718e3744 11261}
11262
dba3c1d3
PG		 11263DEFUN (show_ip_bgp_flowspec_routes_detailed,
11264 show_ip_bgp_flowspec_routes_detailed_cmd,
11265 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" flowspec] detail [json]",
11266 SHOW_STR
11267 IP_STR
11268 BGP_STR
11269 BGP_INSTANCE_HELP_STR
11270 BGP_AFI_HELP_STR
11271 "SAFI Flowspec\n"
11272 "Detailed information on flowspec entries\n"
11273 JSON_STR)
11274{
11275 afi_t afi = AFI_IP;
11276 safi_t safi = SAFI_UNICAST;
11277 struct bgp *bgp = NULL;
11278 int idx = 0;
9f049418
DS		 11279 bool uj = use_json(argc, argv);
11280
11281 if (uj)
11282 argc--;
dba3c1d3
PG		 11283
11284 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 11285 &bgp, uj);
dba3c1d3
PG		 11286 if (!idx)
11287 return CMD_WARNING;
11288
9f049418 11289 return bgp_show(vty, bgp, afi, safi, bgp_show_type_detail, NULL, uj);
dba3c1d3
PG		 11290}
11291
718e3744 11292DEFUN (show_ip_bgp_neighbor_routes,
11293 show_ip_bgp_neighbor_routes_cmd,
4dd6177e 11294 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] "
30a6a167 11295 "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]",
50ef26d4 11296 SHOW_STR
11297 IP_STR
11298 BGP_STR
8386ac43 11299 BGP_INSTANCE_HELP_STR
4f280b15 11300 BGP_AFI_HELP_STR
4dd6177e 11301 BGP_SAFI_WITH_LABEL_HELP_STR
718e3744 11302 "Detailed information on TCP and BGP neighbor connections\n"
11303 "Neighbor to display information about\n"
11304 "Neighbor to display information about\n"
91d37724 11305 "Neighbor on BGP configured interface\n"
2525cf39 11306 "Display flap statistics of the routes learned from neighbor\n"
8c3deaae
QY		 11307 "Display the dampened routes received from neighbor\n"
11308 "Display routes learned from neighbor\n"
9973d184 11309 JSON_STR)
718e3744 11310{
d62a17ae 11311 char *peerstr = NULL;
11312 struct bgp *bgp = NULL;
11313 afi_t afi = AFI_IP6;
11314 safi_t safi = SAFI_UNICAST;
11315 struct peer *peer;
11316 enum bgp_show_type sh_type = bgp_show_type_neighbor;
d62a17ae 11317 int idx = 0;
9f049418
DS		 11318 bool uj = use_json(argc, argv);
11319
11320 if (uj)
11321 argc--;
bb46e94f 11322
d62a17ae 11323 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 11324 &bgp, uj);
d62a17ae 11325 if (!idx)
11326 return CMD_WARNING;
c493f2d8 11327
d62a17ae 11328 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11329 argv_find(argv, argc, "neighbors", &idx);
11330 peerstr = argv[++idx]->arg;
8c3deaae 11331
d62a17ae 11332 peer = peer_lookup_in_view(vty, bgp, peerstr, uj);
9e6e6f46 11333 if (!peer)
d62a17ae 11334 return CMD_WARNING;
bb46e94f 11335
d62a17ae 11336 if (argv_find(argv, argc, "flap-statistics", &idx))
11337 sh_type = bgp_show_type_flap_neighbor;
11338 else if (argv_find(argv, argc, "dampened-routes", &idx))
11339 sh_type = bgp_show_type_damp_neighbor;
11340 else if (argv_find(argv, argc, "routes", &idx))
11341 sh_type = bgp_show_type_neighbor;
2525cf39 11342
d62a17ae 11343 return bgp_show_neighbor_route(vty, peer, afi, safi, sh_type, uj);
50ef26d4 11344}
6b0655a2 11345
734b349e 11346struct bgp_table *bgp_distance_table[AFI_MAX][SAFI_MAX];
718e3744 11347
d62a17ae 11348struct bgp_distance {
11349 /* Distance value for the IP source prefix. */
d7c0a89a 11350 uint8_t distance;
718e3744 11351
d62a17ae 11352 /* Name of the access-list to be matched. */
11353 char *access_list;
718e3744 11354};
11355
4f280b15
LB		 11356DEFUN (show_bgp_afi_vpn_rd_route,
11357 show_bgp_afi_vpn_rd_route_cmd,
d114b977 11358 "show bgp "BGP_AFI_CMD_STR" vpn rd ASN:NN_OR_IP-ADDRESS:NN <A.B.C.D/M|X:X::X:X/M> [json]",
4f280b15
LB		 11359 SHOW_STR
11360 BGP_STR
11361 BGP_AFI_HELP_STR
11362 "Address Family modifier\n"
11363 "Display information for a route distinguisher\n"
11364 "Route Distinguisher\n"
7395a2c9
DS		 11365 "Network in the BGP routing table to display\n"
11366 "Network in the BGP routing table to display\n"
11367 JSON_STR)
4f280b15 11368{
d62a17ae 11369 int ret;
11370 struct prefix_rd prd;
11371 afi_t afi = AFI_MAX;
11372 int idx = 0;
4f280b15 11373
ff6566f3
DS		 11374 if (!argv_find_and_parse_afi(argv, argc, &idx, &afi)) {
11375 vty_out(vty, "%% Malformed Address Family\n");
11376 return CMD_WARNING;
11377 }
11378
d62a17ae 11379 ret = str2prefix_rd(argv[5]->arg, &prd);
11380 if (!ret) {
11381 vty_out(vty, "%% Malformed Route Distinguisher\n");
11382 return CMD_WARNING;
11383 }
ff6566f3 11384
d62a17ae 11385 return bgp_show_route(vty, NULL, argv[6]->arg, afi, SAFI_MPLS_VPN, &prd,
360660c6 11386 0, BGP_PATH_SHOW_ALL, use_json(argc, argv));
4f280b15
LB		 11387}
11388
d62a17ae 11389static struct bgp_distance *bgp_distance_new(void)
718e3744 11390{
d62a17ae 11391 return XCALLOC(MTYPE_BGP_DISTANCE, sizeof(struct bgp_distance));
718e3744 11392}
11393
d62a17ae 11394static void bgp_distance_free(struct bgp_distance *bdistance)
718e3744 11395{
d62a17ae 11396 XFREE(MTYPE_BGP_DISTANCE, bdistance);
718e3744 11397}
11398
d62a17ae 11399static int bgp_distance_set(struct vty *vty, const char *distance_str,
11400 const char *ip_str, const char *access_list_str)
718e3744 11401{
d62a17ae 11402 int ret;
11403 afi_t afi;
11404 safi_t safi;
11405 struct prefix p;
d7c0a89a 11406 uint8_t distance;
d62a17ae 11407 struct bgp_node *rn;
11408 struct bgp_distance *bdistance;
718e3744 11409
d62a17ae 11410 afi = bgp_node_afi(vty);
11411 safi = bgp_node_safi(vty);
734b349e 11412
d62a17ae 11413 ret = str2prefix(ip_str, &p);
11414 if (ret == 0) {
11415 vty_out(vty, "Malformed prefix\n");
11416 return CMD_WARNING_CONFIG_FAILED;
11417 }
718e3744 11418
d62a17ae 11419 distance = atoi(distance_str);
718e3744 11420
d62a17ae 11421 /* Get BGP distance node. */
11422 rn = bgp_node_get(bgp_distance_table[afi][safi], (struct prefix *)&p);
5b00b40e 11423 bdistance = bgp_node_get_bgp_distance_info(rn);
ca2e160d 11424 if (bdistance)
d62a17ae 11425 bgp_unlock_node(rn);
ca2e160d 11426 else {
d62a17ae 11427 bdistance = bgp_distance_new();
5b00b40e 11428 bgp_node_set_bgp_distance_info(rn, bdistance);
d62a17ae 11429 }
718e3744 11430
d62a17ae 11431 /* Set distance value. */
11432 bdistance->distance = distance;
718e3744 11433
d62a17ae 11434 /* Reset access-list configuration. */
11435 if (bdistance->access_list) {
11436 XFREE(MTYPE_AS_LIST, bdistance->access_list);
11437 bdistance->access_list = NULL;
11438 }
11439 if (access_list_str)
11440 bdistance->access_list =
11441 XSTRDUP(MTYPE_AS_LIST, access_list_str);
718e3744 11442
d62a17ae 11443 return CMD_SUCCESS;
718e3744 11444}
11445
d62a17ae 11446static int bgp_distance_unset(struct vty *vty, const char *distance_str,
11447 const char *ip_str, const char *access_list_str)
718e3744 11448{
d62a17ae 11449 int ret;
11450 afi_t afi;
11451 safi_t safi;
11452 struct prefix p;
11453 int distance;
11454 struct bgp_node *rn;
11455 struct bgp_distance *bdistance;
718e3744 11456
d62a17ae 11457 afi = bgp_node_afi(vty);
11458 safi = bgp_node_safi(vty);
734b349e 11459
d62a17ae 11460 ret = str2prefix(ip_str, &p);
11461 if (ret == 0) {
11462 vty_out(vty, "Malformed prefix\n");
11463 return CMD_WARNING_CONFIG_FAILED;
11464 }
718e3744 11465
d62a17ae 11466 rn = bgp_node_lookup(bgp_distance_table[afi][safi],
11467 (struct prefix *)&p);
11468 if (!rn) {
11469 vty_out(vty, "Can't find specified prefix\n");
11470 return CMD_WARNING_CONFIG_FAILED;
11471 }
718e3744 11472
5b00b40e 11473 bdistance = bgp_node_get_bgp_distance_info(rn);
d62a17ae 11474 distance = atoi(distance_str);
1f9a9fff 11475
d62a17ae 11476 if (bdistance->distance != distance) {
11477 vty_out(vty, "Distance does not match configured\n");
11478 return CMD_WARNING_CONFIG_FAILED;
11479 }
718e3744 11480
0a22ddfb 11481 XFREE(MTYPE_AS_LIST, bdistance->access_list);
d62a17ae 11482 bgp_distance_free(bdistance);
718e3744 11483
6f94b685 11484 bgp_node_set_bgp_path_info(rn, NULL);
d62a17ae 11485 bgp_unlock_node(rn);
11486 bgp_unlock_node(rn);
718e3744 11487
d62a17ae 11488 return CMD_SUCCESS;
718e3744 11489}
11490
718e3744 11491/* Apply BGP information to distance method. */
40381db7 11492uint8_t bgp_distance_apply(struct prefix *p, struct bgp_path_info *pinfo,
4b7e6066 11493 afi_t afi, safi_t safi, struct bgp *bgp)
d62a17ae 11494{
11495 struct bgp_node *rn;
11496 struct prefix q;
11497 struct peer *peer;
11498 struct bgp_distance *bdistance;
11499 struct access_list *alist;
11500 struct bgp_static *bgp_static;
11501
11502 if (!bgp)
11503 return 0;
11504
40381db7 11505 peer = pinfo->peer;
d62a17ae 11506
11507 /* Check source address. */
11508 sockunion2hostprefix(&peer->su, &q);
11509 rn = bgp_node_match(bgp_distance_table[afi][safi], &q);
11510 if (rn) {
5b00b40e 11511 bdistance = bgp_node_get_bgp_distance_info(rn);
d62a17ae 11512 bgp_unlock_node(rn);
11513
11514 if (bdistance->access_list) {
11515 alist = access_list_lookup(afi, bdistance->access_list);
11516 if (alist
11517 && access_list_apply(alist, p) == FILTER_PERMIT)
11518 return bdistance->distance;
11519 } else
11520 return bdistance->distance;
718e3744 11521 }
718e3744 11522
d62a17ae 11523 /* Backdoor check. */
11524 rn = bgp_node_lookup(bgp->route[afi][safi], p);
11525 if (rn) {
5a8ba9fc 11526 bgp_static = bgp_node_get_bgp_static_info(rn);
d62a17ae 11527 bgp_unlock_node(rn);
718e3744 11528
d62a17ae 11529 if (bgp_static->backdoor) {
11530 if (bgp->distance_local[afi][safi])
11531 return bgp->distance_local[afi][safi];
11532 else
11533 return ZEBRA_IBGP_DISTANCE_DEFAULT;
11534 }
718e3744 11535 }
718e3744 11536
d62a17ae 11537 if (peer->sort == BGP_PEER_EBGP) {
11538 if (bgp->distance_ebgp[afi][safi])
11539 return bgp->distance_ebgp[afi][safi];
11540 return ZEBRA_EBGP_DISTANCE_DEFAULT;
11541 } else {
11542 if (bgp->distance_ibgp[afi][safi])
11543 return bgp->distance_ibgp[afi][safi];
11544 return ZEBRA_IBGP_DISTANCE_DEFAULT;
11545 }
718e3744 11546}
11547
11548DEFUN (bgp_distance,
11549 bgp_distance_cmd,
6147e2c6 11550 "distance bgp (1-255) (1-255) (1-255)",
718e3744 11551 "Define an administrative distance\n"
11552 "BGP distance\n"
11553 "Distance for routes external to the AS\n"
11554 "Distance for routes internal to the AS\n"
11555 "Distance for local routes\n")
11556{
d62a17ae 11557 VTY_DECLVAR_CONTEXT(bgp, bgp);
11558 int idx_number = 2;
11559 int idx_number_2 = 3;
11560 int idx_number_3 = 4;
11561 afi_t afi;
11562 safi_t safi;
718e3744 11563
d62a17ae 11564 afi = bgp_node_afi(vty);
11565 safi = bgp_node_safi(vty);
718e3744 11566
d62a17ae 11567 bgp->distance_ebgp[afi][safi] = atoi(argv[idx_number]->arg);
11568 bgp->distance_ibgp[afi][safi] = atoi(argv[idx_number_2]->arg);
11569 bgp->distance_local[afi][safi] = atoi(argv[idx_number_3]->arg);
11570 return CMD_SUCCESS;
718e3744 11571}
11572
11573DEFUN (no_bgp_distance,
11574 no_bgp_distance_cmd,
a636c635 11575 "no distance bgp [(1-255) (1-255) (1-255)]",
718e3744 11576 NO_STR
11577 "Define an administrative distance\n"
11578 "BGP distance\n"
11579 "Distance for routes external to the AS\n"
11580 "Distance for routes internal to the AS\n"
11581 "Distance for local routes\n")
11582{
d62a17ae 11583 VTY_DECLVAR_CONTEXT(bgp, bgp);
11584 afi_t afi;
11585 safi_t safi;
718e3744 11586
d62a17ae 11587 afi = bgp_node_afi(vty);
11588 safi = bgp_node_safi(vty);
718e3744 11589
d62a17ae 11590 bgp->distance_ebgp[afi][safi] = 0;
11591 bgp->distance_ibgp[afi][safi] = 0;
11592 bgp->distance_local[afi][safi] = 0;
11593 return CMD_SUCCESS;
718e3744 11594}
11595
718e3744 11596
11597DEFUN (bgp_distance_source,
11598 bgp_distance_source_cmd,
6147e2c6 11599 "distance (1-255) A.B.C.D/M",
718e3744 11600 "Define an administrative distance\n"
11601 "Administrative distance\n"
11602 "IP source prefix\n")
11603{
d62a17ae 11604 int idx_number = 1;
11605 int idx_ipv4_prefixlen = 2;
11606 bgp_distance_set(vty, argv[idx_number]->arg,
11607 argv[idx_ipv4_prefixlen]->arg, NULL);
11608 return CMD_SUCCESS;
718e3744 11609}
11610
11611DEFUN (no_bgp_distance_source,
11612 no_bgp_distance_source_cmd,
6147e2c6 11613 "no distance (1-255) A.B.C.D/M",
718e3744 11614 NO_STR
11615 "Define an administrative distance\n"
11616 "Administrative distance\n"
11617 "IP source prefix\n")
11618{
d62a17ae 11619 int idx_number = 2;
11620 int idx_ipv4_prefixlen = 3;
11621 bgp_distance_unset(vty, argv[idx_number]->arg,
11622 argv[idx_ipv4_prefixlen]->arg, NULL);
11623 return CMD_SUCCESS;
718e3744 11624}
11625
11626DEFUN (bgp_distance_source_access_list,
11627 bgp_distance_source_access_list_cmd,
6147e2c6 11628 "distance (1-255) A.B.C.D/M WORD",
718e3744 11629 "Define an administrative distance\n"
11630 "Administrative distance\n"
11631 "IP source prefix\n"
11632 "Access list name\n")
11633{
d62a17ae 11634 int idx_number = 1;
11635 int idx_ipv4_prefixlen = 2;
11636 int idx_word = 3;
11637 bgp_distance_set(vty, argv[idx_number]->arg,
11638 argv[idx_ipv4_prefixlen]->arg, argv[idx_word]->arg);
11639 return CMD_SUCCESS;
718e3744 11640}
11641
11642DEFUN (no_bgp_distance_source_access_list,
11643 no_bgp_distance_source_access_list_cmd,
6147e2c6 11644 "no distance (1-255) A.B.C.D/M WORD",
718e3744 11645 NO_STR
11646 "Define an administrative distance\n"
11647 "Administrative distance\n"
11648 "IP source prefix\n"
11649 "Access list name\n")
11650{
d62a17ae 11651 int idx_number = 2;
11652 int idx_ipv4_prefixlen = 3;
11653 int idx_word = 4;
11654 bgp_distance_unset(vty, argv[idx_number]->arg,
11655 argv[idx_ipv4_prefixlen]->arg, argv[idx_word]->arg);
11656 return CMD_SUCCESS;
718e3744 11657}
6b0655a2 11658
734b349e
MZ		 11659DEFUN (ipv6_bgp_distance_source,
11660 ipv6_bgp_distance_source_cmd,
39e92c06 11661 "distance (1-255) X:X::X:X/M",
734b349e
MZ		 11662 "Define an administrative distance\n"
11663 "Administrative distance\n"
11664 "IP source prefix\n")
11665{
d62a17ae 11666 bgp_distance_set(vty, argv[1]->arg, argv[2]->arg, NULL);
11667 return CMD_SUCCESS;
734b349e
MZ		 11668}
11669
11670DEFUN (no_ipv6_bgp_distance_source,
11671 no_ipv6_bgp_distance_source_cmd,
39e92c06 11672 "no distance (1-255) X:X::X:X/M",
734b349e
MZ		 11673 NO_STR
11674 "Define an administrative distance\n"
11675 "Administrative distance\n"
11676 "IP source prefix\n")
11677{
d62a17ae 11678 bgp_distance_unset(vty, argv[2]->arg, argv[3]->arg, NULL);
11679 return CMD_SUCCESS;
734b349e
MZ		 11680}
11681
11682DEFUN (ipv6_bgp_distance_source_access_list,
11683 ipv6_bgp_distance_source_access_list_cmd,
39e92c06 11684 "distance (1-255) X:X::X:X/M WORD",
734b349e
MZ		 11685 "Define an administrative distance\n"
11686 "Administrative distance\n"
11687 "IP source prefix\n"
11688 "Access list name\n")
11689{
d62a17ae 11690 bgp_distance_set(vty, argv[1]->arg, argv[2]->arg, argv[3]->arg);
11691 return CMD_SUCCESS;
734b349e
MZ		 11692}
11693
11694DEFUN (no_ipv6_bgp_distance_source_access_list,
11695 no_ipv6_bgp_distance_source_access_list_cmd,
39e92c06 11696 "no distance (1-255) X:X::X:X/M WORD",
734b349e
MZ		 11697 NO_STR
11698 "Define an administrative distance\n"
11699 "Administrative distance\n"
11700 "IP source prefix\n"
11701 "Access list name\n")
11702{
d62a17ae 11703 bgp_distance_unset(vty, argv[2]->arg, argv[3]->arg, argv[4]->arg);
11704 return CMD_SUCCESS;
734b349e
MZ		 11705}
11706
718e3744 11707DEFUN (bgp_damp_set,
11708 bgp_damp_set_cmd,
31500417 11709 "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
718e3744 11710 "BGP Specific commands\n"
11711 "Enable route-flap dampening\n"
11712 "Half-life time for the penalty\n"
11713 "Value to start reusing a route\n"
11714 "Value to start suppressing a route\n"
11715 "Maximum duration to suppress a stable route\n")
11716{
d62a17ae 11717 VTY_DECLVAR_CONTEXT(bgp, bgp);
11718 int idx_half_life = 2;
11719 int idx_reuse = 3;
11720 int idx_suppress = 4;
11721 int idx_max_suppress = 5;
11722 int half = DEFAULT_HALF_LIFE * 60;
11723 int reuse = DEFAULT_REUSE;
11724 int suppress = DEFAULT_SUPPRESS;
11725 int max = 4 * half;
11726
11727 if (argc == 6) {
11728 half = atoi(argv[idx_half_life]->arg) * 60;
11729 reuse = atoi(argv[idx_reuse]->arg);
11730 suppress = atoi(argv[idx_suppress]->arg);
11731 max = atoi(argv[idx_max_suppress]->arg) * 60;
11732 } else if (argc == 3) {
11733 half = atoi(argv[idx_half_life]->arg) * 60;
11734 max = 4 * half;
11735 }
718e3744 11736
d62a17ae 11737 if (suppress < reuse) {
11738 vty_out(vty,
11739 "Suppress value cannot be less than reuse value \n");
11740 return 0;
11741 }
7ebe9748 11742
d62a17ae 11743 return bgp_damp_enable(bgp, bgp_node_afi(vty), bgp_node_safi(vty), half,
11744 reuse, suppress, max);
718e3744 11745}
11746
718e3744 11747DEFUN (bgp_damp_unset,
11748 bgp_damp_unset_cmd,
d04c479d 11749 "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
718e3744 11750 NO_STR
11751 "BGP Specific commands\n"
16cedbb0
QY		 11752 "Enable route-flap dampening\n"
11753 "Half-life time for the penalty\n"
11754 "Value to start reusing a route\n"
11755 "Value to start suppressing a route\n"
11756 "Maximum duration to suppress a stable route\n")
718e3744 11757{
d62a17ae 11758 VTY_DECLVAR_CONTEXT(bgp, bgp);
11759 return bgp_damp_disable(bgp, bgp_node_afi(vty), bgp_node_safi(vty));
718e3744 11760}
11761
718e3744 11762/* Display specified route of BGP table. */
d62a17ae 11763static int bgp_clear_damp_route(struct vty *vty, const char *view_name,
11764 const char *ip_str, afi_t afi, safi_t safi,
11765 struct prefix_rd *prd, int prefix_check)
11766{
11767 int ret;
11768 struct prefix match;
11769 struct bgp_node *rn;
11770 struct bgp_node *rm;
40381db7
DS		 11771 struct bgp_path_info *pi;
11772 struct bgp_path_info *pi_temp;
d62a17ae 11773 struct bgp *bgp;
11774 struct bgp_table *table;
11775
11776 /* BGP structure lookup. */
11777 if (view_name) {
11778 bgp = bgp_lookup_by_name(view_name);
11779 if (bgp == NULL) {
11780 vty_out(vty, "%% Can't find BGP instance %s\n",
11781 view_name);
11782 return CMD_WARNING;
11783 }
11784 } else {
11785 bgp = bgp_get_default();
11786 if (bgp == NULL) {
11787 vty_out(vty, "%% No BGP process is configured\n");
11788 return CMD_WARNING;
11789 }
718e3744 11790 }
718e3744 11791
d62a17ae 11792 /* Check IP address argument. */
11793 ret = str2prefix(ip_str, &match);
11794 if (!ret) {
11795 vty_out(vty, "%% address is malformed\n");
11796 return CMD_WARNING;
11797 }
718e3744 11798
d62a17ae 11799 match.family = afi2family(afi);
11800
11801 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)
11802 || (safi == SAFI_EVPN)) {
11803 for (rn = bgp_table_top(bgp->rib[AFI_IP][safi]); rn;
11804 rn = bgp_route_next(rn)) {
11805 if (prd && memcmp(rn->p.u.val, prd->val, 8) != 0)
11806 continue;
67009e22
DS		 11807 table = bgp_node_get_bgp_table_info(rn);
11808 if (!table)
ea47320b
DL		 11809 continue;
11810 if ((rm = bgp_node_match(table, &match)) == NULL)
11811 continue;
d62a17ae 11812
ea47320b
DL		 11813 if (!prefix_check
11814 || rm->p.prefixlen == match.prefixlen) {
6f94b685 11815 pi = bgp_node_get_bgp_path_info(rm);
40381db7
DS		 11816 while (pi) {
11817 if (pi->extra && pi->extra->damp_info) {
11818 pi_temp = pi->next;
ea47320b 11819 bgp_damp_info_free(
40381db7 11820 pi->extra->damp_info,
60466a63 11821 1);
40381db7 11822 pi = pi_temp;
ea47320b 11823 } else
40381db7 11824 pi = pi->next;
d62a17ae 11825 }
ea47320b
DL		 11826 }
11827
11828 bgp_unlock_node(rm);
d62a17ae 11829 }
11830 } else {
11831 if ((rn = bgp_node_match(bgp->rib[afi][safi], &match))
11832 != NULL) {
11833 if (!prefix_check
11834 || rn->p.prefixlen == match.prefixlen) {
6f94b685 11835 pi = bgp_node_get_bgp_path_info(rn);
40381db7
DS		 11836 while (pi) {
11837 if (pi->extra && pi->extra->damp_info) {
11838 pi_temp = pi->next;
d62a17ae 11839 bgp_damp_info_free(
40381db7 11840 pi->extra->damp_info,
d62a17ae 11841 1);
40381db7 11842 pi = pi_temp;
d62a17ae 11843 } else
40381db7 11844 pi = pi->next;
d62a17ae 11845 }
11846 }
11847
11848 bgp_unlock_node(rn);
11849 }
11850 }
718e3744 11851
d62a17ae 11852 return CMD_SUCCESS;
718e3744 11853}
11854
11855DEFUN (clear_ip_bgp_dampening,
11856 clear_ip_bgp_dampening_cmd,
11857 "clear ip bgp dampening",
11858 CLEAR_STR
11859 IP_STR
11860 BGP_STR
11861 "Clear route flap dampening information\n")
11862{
d62a17ae 11863 bgp_damp_info_clean();
11864 return CMD_SUCCESS;
718e3744 11865}
11866
11867DEFUN (clear_ip_bgp_dampening_prefix,
11868 clear_ip_bgp_dampening_prefix_cmd,
11869 "clear ip bgp dampening A.B.C.D/M",
11870 CLEAR_STR
11871 IP_STR
11872 BGP_STR
11873 "Clear route flap dampening information\n"
0c7b1b01 11874 "IPv4 prefix\n")
718e3744 11875{
d62a17ae 11876 int idx_ipv4_prefixlen = 4;
11877 return bgp_clear_damp_route(vty, NULL, argv[idx_ipv4_prefixlen]->arg,
11878 AFI_IP, SAFI_UNICAST, NULL, 1);
718e3744 11879}
11880
11881DEFUN (clear_ip_bgp_dampening_address,
11882 clear_ip_bgp_dampening_address_cmd,
11883 "clear ip bgp dampening A.B.C.D",
11884 CLEAR_STR
11885 IP_STR
11886 BGP_STR
11887 "Clear route flap dampening information\n"
11888 "Network to clear damping information\n")
11889{
d62a17ae 11890 int idx_ipv4 = 4;
11891 return bgp_clear_damp_route(vty, NULL, argv[idx_ipv4]->arg, AFI_IP,
11892 SAFI_UNICAST, NULL, 0);
718e3744 11893}
11894
11895DEFUN (clear_ip_bgp_dampening_address_mask,
11896 clear_ip_bgp_dampening_address_mask_cmd,
11897 "clear ip bgp dampening A.B.C.D A.B.C.D",
11898 CLEAR_STR
11899 IP_STR
11900 BGP_STR
11901 "Clear route flap dampening information\n"
11902 "Network to clear damping information\n"
11903 "Network mask\n")
11904{
d62a17ae 11905 int idx_ipv4 = 4;
11906 int idx_ipv4_2 = 5;
11907 int ret;
11908 char prefix_str[BUFSIZ];
718e3744 11909
d62a17ae 11910 ret = netmask_str2prefix_str(argv[idx_ipv4]->arg, argv[idx_ipv4_2]->arg,
11911 prefix_str);
11912 if (!ret) {
11913 vty_out(vty, "%% Inconsistent address and mask\n");
11914 return CMD_WARNING;
11915 }
718e3744 11916
d62a17ae 11917 return bgp_clear_damp_route(vty, NULL, prefix_str, AFI_IP, SAFI_UNICAST,
11918 NULL, 0);
718e3744 11919}
6b0655a2 11920
e3b78da8 11921static void show_bgp_peerhash_entry(struct hash_bucket *bucket, void *arg)
825d9834
DS		 11922{
11923 struct vty *vty = arg;
e3b78da8 11924 struct peer *peer = bucket->data;
825d9834
DS		 11925 char buf[SU_ADDRSTRLEN];
11926
11927 vty_out(vty, "\tPeer: %s %s\n", peer->host,
11928 sockunion2str(&peer->su, buf, sizeof(buf)));
11929}
11930
11931DEFUN (show_bgp_peerhash,
11932 show_bgp_peerhash_cmd,
11933 "show bgp peerhash",
11934 SHOW_STR
11935 BGP_STR
11936 "Display information about the BGP peerhash\n")
11937{
11938 struct list *instances = bm->bgp;
11939 struct listnode *node;
11940 struct bgp *bgp;
11941
11942 for (ALL_LIST_ELEMENTS_RO(instances, node, bgp)) {
11943 vty_out(vty, "BGP: %s\n", bgp->name);
11944 hash_iterate(bgp->peerhash, show_bgp_peerhash_entry,
11945 vty);
11946 }
11947
11948 return CMD_SUCCESS;
11949}
11950
587ff0fd 11951/* also used for encap safi */
2b791107
DL		 11952static void bgp_config_write_network_vpn(struct vty *vty, struct bgp *bgp,
11953 afi_t afi, safi_t safi)
d62a17ae 11954{
11955 struct bgp_node *prn;
11956 struct bgp_node *rn;
11957 struct bgp_table *table;
11958 struct prefix *p;
11959 struct prefix_rd *prd;
11960 struct bgp_static *bgp_static;
11961 mpls_label_t label;
11962 char buf[SU_ADDRSTRLEN];
11963 char rdbuf[RD_ADDRSTRLEN];
11964
11965 /* Network configuration. */
11966 for (prn = bgp_table_top(bgp->route[afi][safi]); prn;
ea47320b 11967 prn = bgp_route_next(prn)) {
67009e22
DS		 11968 table = bgp_node_get_bgp_table_info(prn);
11969 if (!table)
ea47320b 11970 continue;
d62a17ae 11971
60466a63 11972 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
5a8ba9fc 11973 bgp_static = bgp_node_get_bgp_static_info(rn);
a78beeb5 11974 if (bgp_static == NULL)
ea47320b 11975 continue;
d62a17ae 11976
ea47320b
DL		 11977 p = &rn->p;
11978 prd = (struct prefix_rd *)&prn->p;
d62a17ae 11979
ea47320b 11980 /* "network" configuration display. */
06b9f471 11981 prefix_rd2str(prd, rdbuf, sizeof(rdbuf));
ea47320b
DL		 11982 label = decode_label(&bgp_static->label);
11983
11984 vty_out(vty, " network %s/%d rd %s",
11985 inet_ntop(p->family, &p->u.prefix, buf,
11986 SU_ADDRSTRLEN),
11987 p->prefixlen, rdbuf);
11988 if (safi == SAFI_MPLS_VPN)
11989 vty_out(vty, " label %u", label);
11990
11991 if (bgp_static->rmap.name)
11992 vty_out(vty, " route-map %s",
11993 bgp_static->rmap.name);
e2a86ad9
DS		 11994
11995 if (bgp_static->backdoor)
11996 vty_out(vty, " backdoor");
11997
ea47320b
DL		 11998 vty_out(vty, "\n");
11999 }
12000 }
d62a17ae 12001}
12002
2b791107
DL		 12003static void bgp_config_write_network_evpn(struct vty *vty, struct bgp *bgp,
12004 afi_t afi, safi_t safi)
d62a17ae 12005{
12006 struct bgp_node *prn;
12007 struct bgp_node *rn;
12008 struct bgp_table *table;
12009 struct prefix *p;
12010 struct prefix_rd *prd;
12011 struct bgp_static *bgp_static;
ff44f570 12012 char buf[PREFIX_STRLEN * 2];
d62a17ae 12013 char buf2[SU_ADDRSTRLEN];
12014 char rdbuf[RD_ADDRSTRLEN];
12015
12016 /* Network configuration. */
12017 for (prn = bgp_table_top(bgp->route[afi][safi]); prn;
ea47320b 12018 prn = bgp_route_next(prn)) {
67009e22
DS		 12019 table = bgp_node_get_bgp_table_info(prn);
12020 if (!table)
ea47320b 12021 continue;
d62a17ae 12022
60466a63 12023 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
5a8ba9fc 12024 bgp_static = bgp_node_get_bgp_static_info(rn);
a78beeb5 12025 if (bgp_static == NULL)
ea47320b 12026 continue;
d62a17ae 12027
ea47320b
DL		 12028 char *macrouter = NULL;
12029 char *esi = NULL;
d62a17ae 12030
ea47320b
DL		 12031 if (bgp_static->router_mac)
12032 macrouter = prefix_mac2str(
12033 bgp_static->router_mac, NULL, 0);
12034 if (bgp_static->eth_s_id)
12035 esi = esi2str(bgp_static->eth_s_id);
12036 p = &rn->p;
12037 prd = (struct prefix_rd *)&prn->p;
d62a17ae 12038
ea47320b 12039 /* "network" configuration display. */
06b9f471 12040 prefix_rd2str(prd, rdbuf, sizeof(rdbuf));
197cb530
PG		 12041 if (p->u.prefix_evpn.route_type == 5) {
12042 char local_buf[PREFIX_STRLEN];
3714a385 12043 uint8_t family = is_evpn_prefix_ipaddr_v4((
a4d82a8a
PZ		 12044 struct prefix_evpn *)p)
12045 ? AF_INET
12046 : AF_INET6;
3714a385 12047 inet_ntop(family,
12048 &p->u.prefix_evpn.prefix_addr.ip.ip.addr,
a4d82a8a
PZ		 12049 local_buf, PREFIX_STRLEN);
12050 sprintf(buf, "%s/%u", local_buf,
3714a385 12051 p->u.prefix_evpn.prefix_addr.ip_prefix_length);
197cb530
PG		 12052 } else {
12053 prefix2str(p, buf, sizeof(buf));
12054 }
ea47320b 12055
a4d82a8a
PZ		 12056 if (bgp_static->gatewayIp.family == AF_INET
12057 || bgp_static->gatewayIp.family == AF_INET6)
197cb530
PG		 12058 inet_ntop(bgp_static->gatewayIp.family,
12059 &bgp_static->gatewayIp.u.prefix, buf2,
12060 sizeof(buf2));
ea47320b 12061 vty_out(vty,
7bcc8dac 12062 " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n",
3714a385 12063 buf, rdbuf,
12064 p->u.prefix_evpn.prefix_addr.eth_tag,
60466a63 12065 decode_label(&bgp_static->label), esi, buf2,
ea47320b
DL		 12066 macrouter);
12067
0a22ddfb
QY		 12068 XFREE(MTYPE_TMP, macrouter);
12069 XFREE(MTYPE_TMP, esi);
ea47320b
DL		 12070 }
12071 }
3da6fcd5
PG		 12072}
12073
718e3744 12074/* Configuration of static route announcement and aggregate
12075 information. */
2b791107
DL		 12076void bgp_config_write_network(struct vty *vty, struct bgp *bgp, afi_t afi,
12077 safi_t safi)
d62a17ae 12078{
12079 struct bgp_node *rn;
12080 struct prefix *p;
12081 struct bgp_static *bgp_static;
12082 struct bgp_aggregate *bgp_aggregate;
12083 char buf[SU_ADDRSTRLEN];
12084
2b791107
DL		 12085 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)) {
12086 bgp_config_write_network_vpn(vty, bgp, afi, safi);
12087 return;
12088 }
d62a17ae 12089
2b791107
DL		 12090 if (afi == AFI_L2VPN && safi == SAFI_EVPN) {
12091 bgp_config_write_network_evpn(vty, bgp, afi, safi);
12092 return;
12093 }
d62a17ae 12094
12095 /* Network configuration. */
12096 for (rn = bgp_table_top(bgp->route[afi][safi]); rn;
ea47320b 12097 rn = bgp_route_next(rn)) {
5a8ba9fc 12098 bgp_static = bgp_node_get_bgp_static_info(rn);
a78beeb5 12099 if (bgp_static == NULL)
ea47320b 12100 continue;
d62a17ae 12101
ea47320b 12102 p = &rn->p;
d62a17ae 12103
ea47320b 12104 /* "network" configuration display. */
60466a63 12105 if (bgp_option_check(BGP_OPT_CONFIG_CISCO) && afi == AFI_IP) {
d7c0a89a 12106 uint32_t destination;
ea47320b 12107 struct in_addr netmask;
d62a17ae 12108
ea47320b
DL		 12109 destination = ntohl(p->u.prefix4.s_addr);
12110 masklen2ip(p->prefixlen, &netmask);
12111 vty_out(vty, " network %s",
12112 inet_ntop(p->family, &p->u.prefix, buf,
12113 SU_ADDRSTRLEN));
d62a17ae 12114
ea47320b
DL		 12115 if ((IN_CLASSC(destination) && p->prefixlen == 24)
12116 || (IN_CLASSB(destination) && p->prefixlen == 16)
12117 || (IN_CLASSA(destination) && p->prefixlen == 8)
12118 || p->u.prefix4.s_addr == 0) {
12119 /* Natural mask is not display. */
12120 } else
12121 vty_out(vty, " mask %s", inet_ntoa(netmask));
12122 } else {
12123 vty_out(vty, " network %s/%d",
12124 inet_ntop(p->family, &p->u.prefix, buf,
12125 SU_ADDRSTRLEN),
12126 p->prefixlen);
12127 }
d62a17ae 12128
ea47320b
DL		 12129 if (bgp_static->label_index != BGP_INVALID_LABEL_INDEX)
12130 vty_out(vty, " label-index %u",
12131 bgp_static->label_index);
d62a17ae 12132
ea47320b
DL		 12133 if (bgp_static->rmap.name)
12134 vty_out(vty, " route-map %s", bgp_static->rmap.name);
e2a86ad9
DS		 12135
12136 if (bgp_static->backdoor)
12137 vty_out(vty, " backdoor");
718e3744 12138
ea47320b
DL		 12139 vty_out(vty, "\n");
12140 }
12141
d62a17ae 12142 /* Aggregate-address configuration. */
12143 for (rn = bgp_table_top(bgp->aggregate[afi][safi]); rn;
ea47320b 12144 rn = bgp_route_next(rn)) {
b613a918 12145 bgp_aggregate = bgp_node_get_bgp_aggregate_info(rn);
b1e62edd 12146 if (bgp_aggregate == NULL)
ea47320b 12147 continue;
d62a17ae 12148
ea47320b 12149 p = &rn->p;
d62a17ae 12150
ea47320b
DL		 12151 if (bgp_option_check(BGP_OPT_CONFIG_CISCO) && afi == AFI_IP) {
12152 struct in_addr netmask;
d62a17ae 12153
ea47320b
DL		 12154 masklen2ip(p->prefixlen, &netmask);
12155 vty_out(vty, " aggregate-address %s %s",
12156 inet_ntop(p->family, &p->u.prefix, buf,
12157 SU_ADDRSTRLEN),
12158 inet_ntoa(netmask));
12159 } else {
12160 vty_out(vty, " aggregate-address %s/%d",
12161 inet_ntop(p->family, &p->u.prefix, buf,
12162 SU_ADDRSTRLEN),
12163 p->prefixlen);
12164 }
d62a17ae 12165
ea47320b
DL		 12166 if (bgp_aggregate->as_set)
12167 vty_out(vty, " as-set");
d62a17ae 12168
ea47320b
DL		 12169 if (bgp_aggregate->summary_only)
12170 vty_out(vty, " summary-only");
718e3744 12171
ea47320b
DL		 12172 vty_out(vty, "\n");
12173 }
d62a17ae 12174}
734b349e 12175
2b791107 12176void bgp_config_write_distance(struct vty *vty, struct bgp *bgp, afi_t afi,
60466a63 12177 safi_t safi)
d62a17ae 12178{
12179 struct bgp_node *rn;
12180 struct bgp_distance *bdistance;
12181
12182 /* Distance configuration. */
12183 if (bgp->distance_ebgp[afi][safi] && bgp->distance_ibgp[afi][safi]
12184 && bgp->distance_local[afi][safi]
12185 && (bgp->distance_ebgp[afi][safi] != ZEBRA_EBGP_DISTANCE_DEFAULT
12186 || bgp->distance_ibgp[afi][safi] != ZEBRA_IBGP_DISTANCE_DEFAULT
12187 || bgp->distance_local[afi][safi]
12188 != ZEBRA_IBGP_DISTANCE_DEFAULT)) {
d62a17ae 12189 vty_out(vty, " distance bgp %d %d %d\n",
12190 bgp->distance_ebgp[afi][safi],
12191 bgp->distance_ibgp[afi][safi],
12192 bgp->distance_local[afi][safi]);
12193 }
734b349e 12194
d62a17ae 12195 for (rn = bgp_table_top(bgp_distance_table[afi][safi]); rn;
ca2e160d 12196 rn = bgp_route_next(rn)) {
5b00b40e 12197 bdistance = bgp_node_get_bgp_distance_info(rn);
ca2e160d 12198 if (bdistance != NULL) {
d62a17ae 12199 char buf[PREFIX_STRLEN];
12200
d62a17ae 12201 vty_out(vty, " distance %d %s %s\n",
12202 bdistance->distance,
12203 prefix2str(&rn->p, buf, sizeof(buf)),
12204 bdistance->access_list ? bdistance->access_list
12205 : "");
12206 }
ca2e160d 12207 }
718e3744 12208}
12209
12210/* Allocate routing table structure and install commands. */
d62a17ae 12211void bgp_route_init(void)
12212{
12213 afi_t afi;
12214 safi_t safi;
12215
12216 /* Init BGP distance table. */
05c7a1cc 12217 FOREACH_AFI_SAFI (afi, safi)
960035b2 12218 bgp_distance_table[afi][safi] = bgp_table_init(NULL, afi, safi);
d62a17ae 12219
12220 /* IPv4 BGP commands. */
12221 install_element(BGP_NODE, &bgp_table_map_cmd);
12222 install_element(BGP_NODE, &bgp_network_cmd);
d62a17ae 12223 install_element(BGP_NODE, &no_bgp_table_map_cmd);
d62a17ae 12224
12225 install_element(BGP_NODE, &aggregate_address_cmd);
12226 install_element(BGP_NODE, &aggregate_address_mask_cmd);
12227 install_element(BGP_NODE, &no_aggregate_address_cmd);
12228 install_element(BGP_NODE, &no_aggregate_address_mask_cmd);
12229
12230 /* IPv4 unicast configuration. */
12231 install_element(BGP_IPV4_NODE, &bgp_table_map_cmd);
12232 install_element(BGP_IPV4_NODE, &bgp_network_cmd);
d62a17ae 12233 install_element(BGP_IPV4_NODE, &no_bgp_table_map_cmd);
d62a17ae 12234
12235 install_element(BGP_IPV4_NODE, &aggregate_address_cmd);
12236 install_element(BGP_IPV4_NODE, &aggregate_address_mask_cmd);
12237 install_element(BGP_IPV4_NODE, &no_aggregate_address_cmd);
12238 install_element(BGP_IPV4_NODE, &no_aggregate_address_mask_cmd);
12239
12240 /* IPv4 multicast configuration. */
12241 install_element(BGP_IPV4M_NODE, &bgp_table_map_cmd);
12242 install_element(BGP_IPV4M_NODE, &bgp_network_cmd);
d62a17ae 12243 install_element(BGP_IPV4M_NODE, &no_bgp_table_map_cmd);
d62a17ae 12244 install_element(BGP_IPV4M_NODE, &aggregate_address_cmd);
12245 install_element(BGP_IPV4M_NODE, &aggregate_address_mask_cmd);
12246 install_element(BGP_IPV4M_NODE, &no_aggregate_address_cmd);
12247 install_element(BGP_IPV4M_NODE, &no_aggregate_address_mask_cmd);
12248
12249 /* IPv4 labeled-unicast configuration. */
12250 install_element(VIEW_NODE, &show_ip_bgp_instance_all_cmd);
12251 install_element(VIEW_NODE, &show_ip_bgp_cmd);
7b2ff250 12252 install_element(VIEW_NODE, &show_ip_bgp_json_cmd);
d62a17ae 12253 install_element(VIEW_NODE, &show_ip_bgp_route_cmd);
12254 install_element(VIEW_NODE, &show_ip_bgp_regexp_cmd);
12255
12256 install_element(VIEW_NODE,
12257 &show_ip_bgp_instance_neighbor_advertised_route_cmd);
12258 install_element(VIEW_NODE, &show_ip_bgp_neighbor_routes_cmd);
12259 install_element(VIEW_NODE,
12260 &show_ip_bgp_neighbor_received_prefix_filter_cmd);
d6902373 12261#ifdef KEEP_OLD_VPN_COMMANDS
d62a17ae 12262 install_element(VIEW_NODE, &show_ip_bgp_vpn_all_route_prefix_cmd);
d6902373 12263#endif /* KEEP_OLD_VPN_COMMANDS */
d62a17ae 12264 install_element(VIEW_NODE, &show_bgp_afi_vpn_rd_route_cmd);
12265 install_element(VIEW_NODE,
12266 &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd);
57d187bc 12267
d62a17ae 12268 /* BGP dampening clear commands */
12269 install_element(ENABLE_NODE, &clear_ip_bgp_dampening_cmd);
12270 install_element(ENABLE_NODE, &clear_ip_bgp_dampening_prefix_cmd);
718e3744 12271
d62a17ae 12272 install_element(ENABLE_NODE, &clear_ip_bgp_dampening_address_cmd);
12273 install_element(ENABLE_NODE, &clear_ip_bgp_dampening_address_mask_cmd);
12274
12275 /* prefix count */
12276 install_element(ENABLE_NODE,
12277 &show_ip_bgp_instance_neighbor_prefix_counts_cmd);
d6902373 12278#ifdef KEEP_OLD_VPN_COMMANDS
d62a17ae 12279 install_element(ENABLE_NODE,
12280 &show_ip_bgp_vpn_neighbor_prefix_counts_cmd);
d6902373 12281#endif /* KEEP_OLD_VPN_COMMANDS */
ff7924f6 12282
d62a17ae 12283 /* New config IPv6 BGP commands. */
12284 install_element(BGP_IPV6_NODE, &bgp_table_map_cmd);
12285 install_element(BGP_IPV6_NODE, &ipv6_bgp_network_cmd);
d62a17ae 12286 install_element(BGP_IPV6_NODE, &no_bgp_table_map_cmd);
d62a17ae 12287
12288 install_element(BGP_IPV6_NODE, &ipv6_aggregate_address_cmd);
12289 install_element(BGP_IPV6_NODE, &no_ipv6_aggregate_address_cmd);
12290
12291 install_element(BGP_IPV6M_NODE, &ipv6_bgp_network_cmd);
d62a17ae 12292
d62a17ae 12293 install_element(BGP_NODE, &bgp_distance_cmd);
12294 install_element(BGP_NODE, &no_bgp_distance_cmd);
12295 install_element(BGP_NODE, &bgp_distance_source_cmd);
12296 install_element(BGP_NODE, &no_bgp_distance_source_cmd);
12297 install_element(BGP_NODE, &bgp_distance_source_access_list_cmd);
12298 install_element(BGP_NODE, &no_bgp_distance_source_access_list_cmd);
12299 install_element(BGP_IPV4_NODE, &bgp_distance_cmd);
12300 install_element(BGP_IPV4_NODE, &no_bgp_distance_cmd);
12301 install_element(BGP_IPV4_NODE, &bgp_distance_source_cmd);
12302 install_element(BGP_IPV4_NODE, &no_bgp_distance_source_cmd);
12303 install_element(BGP_IPV4_NODE, &bgp_distance_source_access_list_cmd);
12304 install_element(BGP_IPV4_NODE, &no_bgp_distance_source_access_list_cmd);
12305 install_element(BGP_IPV4M_NODE, &bgp_distance_cmd);
12306 install_element(BGP_IPV4M_NODE, &no_bgp_distance_cmd);
12307 install_element(BGP_IPV4M_NODE, &bgp_distance_source_cmd);
12308 install_element(BGP_IPV4M_NODE, &no_bgp_distance_source_cmd);
12309 install_element(BGP_IPV4M_NODE, &bgp_distance_source_access_list_cmd);
12310 install_element(BGP_IPV4M_NODE,
12311 &no_bgp_distance_source_access_list_cmd);
12312 install_element(BGP_IPV6_NODE, &bgp_distance_cmd);
12313 install_element(BGP_IPV6_NODE, &no_bgp_distance_cmd);
12314 install_element(BGP_IPV6_NODE, &ipv6_bgp_distance_source_cmd);
12315 install_element(BGP_IPV6_NODE, &no_ipv6_bgp_distance_source_cmd);
12316 install_element(BGP_IPV6_NODE,
12317 &ipv6_bgp_distance_source_access_list_cmd);
12318 install_element(BGP_IPV6_NODE,
12319 &no_ipv6_bgp_distance_source_access_list_cmd);
12320 install_element(BGP_IPV6M_NODE, &bgp_distance_cmd);
12321 install_element(BGP_IPV6M_NODE, &no_bgp_distance_cmd);
12322 install_element(BGP_IPV6M_NODE, &ipv6_bgp_distance_source_cmd);
12323 install_element(BGP_IPV6M_NODE, &no_ipv6_bgp_distance_source_cmd);
12324 install_element(BGP_IPV6M_NODE,
12325 &ipv6_bgp_distance_source_access_list_cmd);
12326 install_element(BGP_IPV6M_NODE,
12327 &no_ipv6_bgp_distance_source_access_list_cmd);
12328
12329 install_element(BGP_NODE, &bgp_damp_set_cmd);
12330 install_element(BGP_NODE, &bgp_damp_unset_cmd);
12331 install_element(BGP_IPV4_NODE, &bgp_damp_set_cmd);
12332 install_element(BGP_IPV4_NODE, &bgp_damp_unset_cmd);
12333
12334 /* IPv4 Multicast Mode */
12335 install_element(BGP_IPV4M_NODE, &bgp_damp_set_cmd);
12336 install_element(BGP_IPV4M_NODE, &bgp_damp_unset_cmd);
12337
12338 /* Large Communities */
12339 install_element(VIEW_NODE, &show_ip_bgp_large_community_list_cmd);
12340 install_element(VIEW_NODE, &show_ip_bgp_large_community_cmd);
dba3c1d3
PG		 12341
12342 /* show bgp ipv4 flowspec detailed */
12343 install_element(VIEW_NODE, &show_ip_bgp_flowspec_routes_detailed_cmd);
12344
825d9834 12345 install_element(VIEW_NODE, &show_bgp_peerhash_cmd);
d62a17ae 12346}
12347
12348void bgp_route_finish(void)
12349{
12350 afi_t afi;
12351 safi_t safi;
12352
05c7a1cc
QY		 12353 FOREACH_AFI_SAFI (afi, safi) {
12354 bgp_table_unlock(bgp_distance_table[afi][safi]);
12355 bgp_distance_table[afi][safi] = NULL;
12356 }
228da428 12357}
FRRouting mirror