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Merge pull request #4159 from sworleys/WQ-ErrFunc-Fix
[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(
2935 &attr->mp_nexthop_global));
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, " } ");
9386b588 9015 }
d62a17ae 9016 } else {
1ae44dfc
LB		 9017 if (is_last) {
9018 /* No route is displayed */
9019 if (output_count == 0) {
9020 if (type == bgp_show_type_normal)
9021 vty_out(vty,
9022 "No BGP prefixes displayed, %ld exist\n",
9023 total_count);
9024 } else
d62a17ae 9025 vty_out(vty,
1ae44dfc
LB		 9026 "\nDisplayed %ld routes and %ld total paths\n",
9027 output_count, total_count);
9028 }
d62a17ae 9029 }
718e3744 9030
d62a17ae 9031 return CMD_SUCCESS;
718e3744 9032}
9033
1ae44dfc
LB		 9034int bgp_show_table_rd(struct vty *vty, struct bgp *bgp, safi_t safi,
9035 struct bgp_table *table, struct prefix_rd *prd_match,
9f049418 9036 enum bgp_show_type type, void *output_arg, bool use_json)
1ae44dfc
LB		 9037{
9038 struct bgp_node *rn, *next;
9039 unsigned long output_cum = 0;
9040 unsigned long total_cum = 0;
9386b588 9041 unsigned long json_header_depth = 0;
67009e22 9042 struct bgp_table *itable;
0136788c
LB		 9043 bool show_msg;
9044
9045 show_msg = (!use_json && type == bgp_show_type_normal);
1ae44dfc
LB		 9046
9047 for (rn = bgp_table_top(table); rn; rn = next) {
9048 next = bgp_route_next(rn);
9049 if (prd_match && memcmp(rn->p.u.val, prd_match->val, 8) != 0)
9050 continue;
67009e22
DS		 9051
9052 itable = bgp_node_get_bgp_table_info(rn);
9053 if (itable != NULL) {
1ae44dfc 9054 struct prefix_rd prd;
06b9f471 9055 char rd[RD_ADDRSTRLEN];
1ae44dfc
LB		 9056
9057 memcpy(&prd, &(rn->p), sizeof(struct prefix_rd));
06b9f471 9058 prefix_rd2str(&prd, rd, sizeof(rd));
67009e22
DS		 9059 bgp_show_table(vty, bgp, safi, itable, type, output_arg,
9060 use_json, rd, next == NULL, &output_cum,
9061 &total_cum, &json_header_depth);
0136788c
LB		 9062 if (next == NULL)
9063 show_msg = false;
1ae44dfc
LB		 9064 }
9065 }
0136788c
LB		 9066 if (show_msg) {
9067 if (output_cum == 0)
9068 vty_out(vty, "No BGP prefixes displayed, %ld exist\n",
9069 total_cum);
9070 else
9071 vty_out(vty,
9072 "\nDisplayed %ld routes and %ld total paths\n",
9073 output_cum, total_cum);
9074 }
1ae44dfc
LB		 9075 return CMD_SUCCESS;
9076}
d62a17ae 9077static int bgp_show(struct vty *vty, struct bgp *bgp, afi_t afi, safi_t safi,
9f049418 9078 enum bgp_show_type type, void *output_arg, bool use_json)
fee0f4c6 9079{
d62a17ae 9080 struct bgp_table *table;
9386b588 9081 unsigned long json_header_depth = 0;
fee0f4c6 9082
d62a17ae 9083 if (bgp == NULL) {
9084 bgp = bgp_get_default();
9085 }
fee0f4c6 9086
d62a17ae 9087 if (bgp == NULL) {
9088 if (!use_json)
9089 vty_out(vty, "No BGP process is configured\n");
16307668
RW		 9090 else
9091 vty_out(vty, "{}\n");
d62a17ae 9092 return CMD_WARNING;
9093 }
4dd6177e 9094
1ae44dfc 9095 table = bgp->rib[afi][safi];
d62a17ae 9096 /* use MPLS and ENCAP specific shows until they are merged */
9097 if (safi == SAFI_MPLS_VPN) {
1ae44dfc
LB		 9098 return bgp_show_table_rd(vty, bgp, safi, table, NULL, type,
9099 output_arg, use_json);
d62a17ae 9100 }
dba3c1d3
PG		 9101
9102 if (safi == SAFI_FLOWSPEC && type == bgp_show_type_detail) {
9103 return bgp_show_table_flowspec(vty, bgp, afi, table, type,
9104 output_arg, use_json,
9105 1, NULL, NULL);
9106 }
d62a17ae 9107 /* labeled-unicast routes live in the unicast table */
9108 else if (safi == SAFI_LABELED_UNICAST)
9109 safi = SAFI_UNICAST;
fee0f4c6 9110
1ae44dfc 9111 return bgp_show_table(vty, bgp, safi, table, type, output_arg, use_json,
9386b588 9112 NULL, 1, NULL, NULL, &json_header_depth);
fee0f4c6 9113}
9114
d62a17ae 9115static void bgp_show_all_instances_routes_vty(struct vty *vty, afi_t afi,
9f049418 9116 safi_t safi, bool use_json)
f186de26 9117{
d62a17ae 9118 struct listnode *node, *nnode;
9119 struct bgp *bgp;
9120 int is_first = 1;
9f049418 9121 bool route_output = false;
f186de26 9122
d62a17ae 9123 if (use_json)
9124 vty_out(vty, "{\n");
9f689658 9125
d62a17ae 9126 for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) {
9f049418 9127 route_output = true;
d62a17ae 9128 if (use_json) {
9129 if (!is_first)
9130 vty_out(vty, ",\n");
9131 else
9132 is_first = 0;
9133
9134 vty_out(vty, "\"%s\":",
9135 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
5742e42b 9136 ? VRF_DEFAULT_NAME
d62a17ae 9137 : bgp->name);
9138 } else {
9139 vty_out(vty, "\nInstance %s:\n",
9140 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
5742e42b 9141 ? VRF_DEFAULT_NAME
d62a17ae 9142 : bgp->name);
9143 }
9144 bgp_show(vty, bgp, afi, safi, bgp_show_type_normal, NULL,
9145 use_json);
9146 }
9f689658 9147
d62a17ae 9148 if (use_json)
9149 vty_out(vty, "}\n");
9f049418
DS		 9150 else if (!route_output)
9151 vty_out(vty, "%% BGP instance not found\n");
f186de26 9152}
9153
718e3744 9154/* Header of detailed BGP route information */
d62a17ae 9155void route_vty_out_detail_header(struct vty *vty, struct bgp *bgp,
9156 struct bgp_node *rn, struct prefix_rd *prd,
9157 afi_t afi, safi_t safi, json_object *json)
9158{
40381db7 9159 struct bgp_path_info *pi;
d62a17ae 9160 struct prefix *p;
9161 struct peer *peer;
9162 struct listnode *node, *nnode;
06b9f471 9163 char buf1[RD_ADDRSTRLEN];
d62a17ae 9164 char buf2[INET6_ADDRSTRLEN];
d62a17ae 9165 char buf3[EVPN_ROUTE_STRLEN];
0291c246 9166 char prefix_str[BUFSIZ];
d62a17ae 9167 int count = 0;
9168 int best = 0;
9169 int suppress = 0;
c5f1e1b2
C		 9170 int accept_own = 0;
9171 int route_filter_translated_v4 = 0;
9172 int route_filter_v4 = 0;
9173 int route_filter_translated_v6 = 0;
9174 int route_filter_v6 = 0;
9175 int llgr_stale = 0;
9176 int no_llgr = 0;
9177 int accept_own_nexthop = 0;
9178 int blackhole = 0;
d62a17ae 9179 int no_export = 0;
9180 int no_advertise = 0;
9181 int local_as = 0;
c5f1e1b2 9182 int no_peer = 0;
d62a17ae 9183 int first = 1;
9184 int has_valid_label = 0;
9185 mpls_label_t label = 0;
9186 json_object *json_adv_to = NULL;
9bedbb1e 9187
d62a17ae 9188 p = &rn->p;
9189 has_valid_label = bgp_is_valid_label(&rn->local_label);
9190
9191 if (has_valid_label)
9192 label = label_pton(&rn->local_label);
9193
9194 if (json) {
9195 if (has_valid_label)
9196 json_object_int_add(json, "localLabel", label);
9197
60466a63
QY		 9198 json_object_string_add(
9199 json, "prefix",
9200 prefix2str(p, prefix_str, sizeof(prefix_str)));
d62a17ae 9201 } else {
d62a17ae 9202 if (safi == SAFI_EVPN)
9203 vty_out(vty, "BGP routing table entry for %s%s%s\n",
06b9f471 9204 prd ? prefix_rd2str(prd, buf1, sizeof(buf1))
d62a17ae 9205 : "",
9206 prd ? ":" : "",
9207 bgp_evpn_route2str((struct prefix_evpn *)p,
9208 buf3, sizeof(buf3)));
9209 else
9210 vty_out(vty, "BGP routing table entry for %s%s%s/%d\n",
9211 ((safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP)
9212 ? prefix_rd2str(prd, buf1,
06b9f471 9213 sizeof(buf1))
d62a17ae 9214 : ""),
9215 safi == SAFI_MPLS_VPN ? ":" : "",
9216 inet_ntop(p->family, &p->u.prefix, buf2,
9217 INET6_ADDRSTRLEN),
9218 p->prefixlen);
cd1964ff 9219
d62a17ae 9220 if (has_valid_label)
9221 vty_out(vty, "Local label: %d\n", label);
d62a17ae 9222 if (bgp_labeled_safi(safi) && safi != SAFI_EVPN)
d62a17ae 9223 vty_out(vty, "not allocated\n");
9224 }
718e3744 9225
6f94b685 9226 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
d62a17ae 9227 count++;
40381db7 9228 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) {
d62a17ae 9229 best = count;
40381db7 9230 if (pi->extra && pi->extra->suppress)
d62a17ae 9231 suppress = 1;
cee9c031 9232
40381db7 9233 if (pi->attr->community == NULL)
cee9c031
QY		 9234 continue;
9235
9236 no_advertise += community_include(
40381db7
DS		 9237 pi->attr->community, COMMUNITY_NO_ADVERTISE);
9238 no_export += community_include(pi->attr->community,
cee9c031 9239 COMMUNITY_NO_EXPORT);
40381db7 9240 local_as += community_include(pi->attr->community,
cee9c031 9241 COMMUNITY_LOCAL_AS);
40381db7 9242 accept_own += community_include(pi->attr->community,
cee9c031
QY		 9243 COMMUNITY_ACCEPT_OWN);
9244 route_filter_translated_v4 += community_include(
40381db7 9245 pi->attr->community,
cee9c031
QY		 9246 COMMUNITY_ROUTE_FILTER_TRANSLATED_v4);
9247 route_filter_translated_v6 += community_include(
40381db7 9248 pi->attr->community,
cee9c031
QY		 9249 COMMUNITY_ROUTE_FILTER_TRANSLATED_v6);
9250 route_filter_v4 += community_include(
40381db7 9251 pi->attr->community, COMMUNITY_ROUTE_FILTER_v4);
cee9c031 9252 route_filter_v6 += community_include(
40381db7
DS		 9253 pi->attr->community, COMMUNITY_ROUTE_FILTER_v6);
9254 llgr_stale += community_include(pi->attr->community,
cee9c031 9255 COMMUNITY_LLGR_STALE);
40381db7 9256 no_llgr += community_include(pi->attr->community,
cee9c031
QY		 9257 COMMUNITY_NO_LLGR);
9258 accept_own_nexthop +=
40381db7 9259 community_include(pi->attr->community,
cee9c031 9260 COMMUNITY_ACCEPT_OWN_NEXTHOP);
40381db7 9261 blackhole += community_include(pi->attr->community,
cee9c031 9262 COMMUNITY_BLACKHOLE);
40381db7 9263 no_peer += community_include(pi->attr->community,
cee9c031 9264 COMMUNITY_NO_PEER);
d62a17ae 9265 }
718e3744 9266 }
718e3744 9267
d62a17ae 9268 if (!json) {
9269 vty_out(vty, "Paths: (%d available", count);
9270 if (best) {
9271 vty_out(vty, ", best #%d", best);
9272 if (safi == SAFI_UNICAST)
9273 vty_out(vty, ", table %s",
9274 (bgp->inst_type
9275 == BGP_INSTANCE_TYPE_DEFAULT)
5742e42b 9276 ? VRF_DEFAULT_NAME
d62a17ae 9277 : bgp->name);
9278 } else
9279 vty_out(vty, ", no best path");
9280
c5f1e1b2
C		 9281 if (accept_own)
9282 vty_out(vty,
9283 ", accept own local route exported and imported in different VRF");
9284 else if (route_filter_translated_v4)
9285 vty_out(vty,
9286 ", mark translated RTs for VPNv4 route filtering");
9287 else if (route_filter_v4)
9288 vty_out(vty,
9289 ", attach RT as-is for VPNv4 route filtering");
9290 else if (route_filter_translated_v6)
9291 vty_out(vty,
9292 ", mark translated RTs for VPNv6 route filtering");
9293 else if (route_filter_v6)
9294 vty_out(vty,
9295 ", attach RT as-is for VPNv6 route filtering");
9296 else if (llgr_stale)
9297 vty_out(vty,
9298 ", mark routes to be retained for a longer time. Requeres support for Long-lived BGP Graceful Restart");
9299 else if (no_llgr)
9300 vty_out(vty,
9301 ", mark routes to not be treated according to Long-lived BGP Graceful Restart operations");
9302 else if (accept_own_nexthop)
9303 vty_out(vty,
9304 ", accept local nexthop");
9305 else if (blackhole)
9306 vty_out(vty, ", inform peer to blackhole prefix");
d62a17ae 9307 else if (no_export)
9308 vty_out(vty, ", not advertised to EBGP peer");
c5f1e1b2
C		 9309 else if (no_advertise)
9310 vty_out(vty, ", not advertised to any peer");
d62a17ae 9311 else if (local_as)
9312 vty_out(vty, ", not advertised outside local AS");
c5f1e1b2
C		 9313 else if (no_peer)
9314 vty_out(vty,
9315 ", inform EBGP peer not to advertise to their EBGP peers");
d62a17ae 9316
9317 if (suppress)
9318 vty_out(vty,
9319 ", Advertisements suppressed by an aggregate.");
9320 vty_out(vty, ")\n");
9321 }
718e3744 9322
d62a17ae 9323 /* If we are not using addpath then we can display Advertised to and
9324 * that will
9325 * show what peers we advertised the bestpath to. If we are using
9326 * addpath
9327 * though then we must display Advertised to on a path-by-path basis. */
dcc68b5e 9328 if (!bgp_addpath_is_addpath_used(&bgp->tx_addpath, afi, safi)) {
d62a17ae 9329 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
9330 if (bgp_adj_out_lookup(peer, rn, 0)) {
9331 if (json && !json_adv_to)
9332 json_adv_to = json_object_new_object();
9333
9334 route_vty_out_advertised_to(
9335 vty, peer, &first,
9336 " Advertised to non peer-group peers:\n ",
9337 json_adv_to);
9338 }
9339 }
9340
9341 if (json) {
9342 if (json_adv_to) {
9343 json_object_object_add(json, "advertisedTo",
9344 json_adv_to);
9345 }
9346 } else {
9347 if (first)
9348 vty_out(vty, " Not advertised to any peer");
9349 vty_out(vty, "\n");
9350 }
9351 }
718e3744 9352}
9353
9354/* Display specified route of BGP table. */
d62a17ae 9355static int bgp_show_route_in_table(struct vty *vty, struct bgp *bgp,
9356 struct bgp_table *rib, const char *ip_str,
9357 afi_t afi, safi_t safi,
9358 struct prefix_rd *prd, int prefix_check,
9f049418 9359 enum bgp_path_type pathtype, bool use_json)
d62a17ae 9360{
9361 int ret;
9362 int header;
9363 int display = 0;
9364 struct prefix match;
9365 struct bgp_node *rn;
9366 struct bgp_node *rm;
40381db7 9367 struct bgp_path_info *pi;
d62a17ae 9368 struct bgp_table *table;
9369 json_object *json = NULL;
9370 json_object *json_paths = NULL;
9371
9372 /* Check IP address argument. */
9373 ret = str2prefix(ip_str, &match);
9374 if (!ret) {
9375 vty_out(vty, "address is malformed\n");
9376 return CMD_WARNING;
9377 }
718e3744 9378
d62a17ae 9379 match.family = afi2family(afi);
b05a1c8b 9380
d62a17ae 9381 if (use_json) {
9382 json = json_object_new_object();
9383 json_paths = json_object_new_array();
9384 }
718e3744 9385
d62a17ae 9386 if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP || safi == SAFI_EVPN) {
9387 for (rn = bgp_table_top(rib); rn; rn = bgp_route_next(rn)) {
9388 if (prd && memcmp(rn->p.u.val, prd->val, 8) != 0)
9389 continue;
67009e22
DS		 9390 table = bgp_node_get_bgp_table_info(rn);
9391 if (!table)
ea47320b 9392 continue;
d62a17ae 9393
ea47320b
DL		 9394 header = 1;
9395
9396 if ((rm = bgp_node_match(table, &match)) == NULL)
9397 continue;
d62a17ae 9398
ea47320b
DL		 9399 if (prefix_check
9400 && rm->p.prefixlen != match.prefixlen) {
9401 bgp_unlock_node(rm);
9402 continue;
9403 }
d62a17ae 9404
6f94b685
DS		 9405 for (pi = bgp_node_get_bgp_path_info(rm); pi;
9406 pi = pi->next) {
ea47320b 9407 if (header) {
60466a63
QY		 9408 route_vty_out_detail_header(
9409 vty, bgp, rm,
9410 (struct prefix_rd *)&rn->p,
ea47320b
DL		 9411 AFI_IP, safi, json);
9412 header = 0;
d62a17ae 9413 }
ea47320b
DL		 9414 display++;
9415
360660c6
DS		 9416 if (pathtype == BGP_PATH_SHOW_ALL
9417 || (pathtype == BGP_PATH_SHOW_BESTPATH
40381db7 9418 && CHECK_FLAG(pi->flags,
1defdda8 9419 BGP_PATH_SELECTED))
360660c6 9420 || (pathtype == BGP_PATH_SHOW_MULTIPATH
40381db7 9421 && (CHECK_FLAG(pi->flags,
1defdda8 9422 BGP_PATH_MULTIPATH)
40381db7 9423 || CHECK_FLAG(pi->flags,
1defdda8 9424 BGP_PATH_SELECTED))))
ea47320b 9425 route_vty_out_detail(vty, bgp, &rm->p,
40381db7 9426 pi, AFI_IP, safi,
ea47320b 9427 json_paths);
d62a17ae 9428 }
ea47320b
DL		 9429
9430 bgp_unlock_node(rm);
d62a17ae 9431 }
98a9dbc7 9432 } else if (safi == SAFI_FLOWSPEC) {
63a0b7a9
PG		 9433 display = bgp_flowspec_display_match_per_ip(afi, rib,
9434 &match, prefix_check,
9435 vty,
9436 use_json,
9437 json_paths);
d62a17ae 9438 } else {
9439 header = 1;
9440
9441 if ((rn = bgp_node_match(rib, &match)) != NULL) {
9442 if (!prefix_check
9443 || rn->p.prefixlen == match.prefixlen) {
6f94b685
DS		 9444 for (pi = bgp_node_get_bgp_path_info(rn); pi;
9445 pi = pi->next) {
d62a17ae 9446 if (header) {
9447 route_vty_out_detail_header(
9448 vty, bgp, rn, NULL, afi,
9449 safi, json);
9450 header = 0;
9451 }
9452 display++;
9453
360660c6
DS		 9454 if (pathtype == BGP_PATH_SHOW_ALL
9455 || (pathtype
9456 == BGP_PATH_SHOW_BESTPATH
d62a17ae 9457 && CHECK_FLAG(
40381db7 9458 pi->flags,
1defdda8 9459 BGP_PATH_SELECTED))
360660c6
DS		 9460 || (pathtype
9461 == BGP_PATH_SHOW_MULTIPATH
d62a17ae 9462 && (CHECK_FLAG(
40381db7 9463 pi->flags,
1defdda8 9464 BGP_PATH_MULTIPATH)
d62a17ae 9465 || CHECK_FLAG(
40381db7 9466 pi->flags,
1defdda8 9467 BGP_PATH_SELECTED))))
d62a17ae 9468 route_vty_out_detail(
40381db7 9469 vty, bgp, &rn->p, pi,
d62a17ae 9470 afi, safi, json_paths);
9471 }
9472 }
9473
9474 bgp_unlock_node(rn);
9475 }
9476 }
e5eee9af 9477
d62a17ae 9478 if (use_json) {
9479 if (display)
9480 json_object_object_add(json, "paths", json_paths);
9481
996c9314
LB		 9482 vty_out(vty, "%s\n", json_object_to_json_string_ext(
9483 json, JSON_C_TO_STRING_PRETTY));
d62a17ae 9484 json_object_free(json);
9485 } else {
9486 if (!display) {
9487 vty_out(vty, "%% Network not in table\n");
9488 return CMD_WARNING;
9489 }
9490 }
b05a1c8b 9491
d62a17ae 9492 return CMD_SUCCESS;
718e3744 9493}
9494
fee0f4c6 9495/* Display specified route of Main RIB */
d62a17ae 9496static int bgp_show_route(struct vty *vty, struct bgp *bgp, const char *ip_str,
9497 afi_t afi, safi_t safi, struct prefix_rd *prd,
9498 int prefix_check, enum bgp_path_type pathtype,
9f049418 9499 bool use_json)
d62a17ae 9500{
9b86009a 9501 if (!bgp) {
d62a17ae 9502 bgp = bgp_get_default();
9b86009a
RW		 9503 if (!bgp) {
9504 if (!use_json)
9505 vty_out(vty, "No BGP process is configured\n");
16307668
RW		 9506 else
9507 vty_out(vty, "{}\n");
9b86009a
RW		 9508 return CMD_WARNING;
9509 }
9510 }
d62a17ae 9511
9512 /* labeled-unicast routes live in the unicast table */
9513 if (safi == SAFI_LABELED_UNICAST)
9514 safi = SAFI_UNICAST;
9515
9516 return bgp_show_route_in_table(vty, bgp, bgp->rib[afi][safi], ip_str,
9517 afi, safi, prd, prefix_check, pathtype,
9518 use_json);
9519}
9520
9521static int bgp_show_lcommunity(struct vty *vty, struct bgp *bgp, int argc,
9522 struct cmd_token **argv, afi_t afi, safi_t safi,
088f1098 9523 bool uj)
d62a17ae 9524{
9525 struct lcommunity *lcom;
9526 struct buffer *b;
9527 int i;
9528 char *str;
9529 int first = 0;
9530
9531 b = buffer_new(1024);
9532 for (i = 0; i < argc; i++) {
9533 if (first)
9534 buffer_putc(b, ' ');
9535 else {
9536 if (strmatch(argv[i]->text, "AA:BB:CC")) {
9537 first = 1;
9538 buffer_putstr(b, argv[i]->arg);
9539 }
9540 }
9541 }
9542 buffer_putc(b, '\0');
57d187bc 9543
d62a17ae 9544 str = buffer_getstr(b);
9545 buffer_free(b);
57d187bc 9546
d62a17ae 9547 lcom = lcommunity_str2com(str);
9548 XFREE(MTYPE_TMP, str);
9549 if (!lcom) {
9550 vty_out(vty, "%% Large-community malformed\n");
9551 return CMD_WARNING;
9552 }
57d187bc 9553
d62a17ae 9554 return bgp_show(vty, bgp, afi, safi, bgp_show_type_lcommunity, lcom,
9555 uj);
57d187bc
JS		 9556}
9557
d62a17ae 9558static int bgp_show_lcommunity_list(struct vty *vty, struct bgp *bgp,
9559 const char *lcom, afi_t afi, safi_t safi,
088f1098 9560 bool uj)
57d187bc 9561{
d62a17ae 9562 struct community_list *list;
57d187bc 9563
e237b0d2 9564 list = community_list_lookup(bgp_clist, lcom, 0,
d62a17ae 9565 LARGE_COMMUNITY_LIST_MASTER);
9566 if (list == NULL) {
9567 vty_out(vty, "%% %s is not a valid large-community-list name\n",
9568 lcom);
9569 return CMD_WARNING;
9570 }
57d187bc 9571
d62a17ae 9572 return bgp_show(vty, bgp, afi, safi, bgp_show_type_lcommunity_list,
9573 list, uj);
fee0f4c6 9574}
9575
52951b63
DS		 9576DEFUN (show_ip_bgp_large_community_list,
9577 show_ip_bgp_large_community_list_cmd,
4dd6177e 9578 "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		 9579 SHOW_STR
9580 IP_STR
9581 BGP_STR
9582 BGP_INSTANCE_HELP_STR
9bedbb1e 9583 BGP_AFI_HELP_STR
4dd6177e 9584 BGP_SAFI_WITH_LABEL_HELP_STR
52951b63
DS		 9585 "Display routes matching the large-community-list\n"
9586 "large-community-list number\n"
9587 "large-community-list name\n"
9588 JSON_STR)
9589{
d62a17ae 9590 char *vrf = NULL;
9591 afi_t afi = AFI_IP6;
9592 safi_t safi = SAFI_UNICAST;
9593 int idx = 0;
9594
9595 if (argv_find(argv, argc, "ip", &idx))
9596 afi = AFI_IP;
9597 if (argv_find(argv, argc, "view", &idx)
9598 || argv_find(argv, argc, "vrf", &idx))
9599 vrf = argv[++idx]->arg;
9600 if (argv_find(argv, argc, "ipv4", &idx)
9601 || argv_find(argv, argc, "ipv6", &idx)) {
9602 afi = strmatch(argv[idx]->text, "ipv6") ? AFI_IP6 : AFI_IP;
9603 if (argv_find(argv, argc, "unicast", &idx)
9604 || argv_find(argv, argc, "multicast", &idx))
9605 safi = bgp_vty_safi_from_str(argv[idx]->text);
9606 }
9607
9f049418 9608 bool uj = use_json(argc, argv);
d62a17ae 9609
9610 struct bgp *bgp = bgp_lookup_by_name(vrf);
9611 if (bgp == NULL) {
9612 vty_out(vty, "Can't find BGP instance %s\n", vrf);
9613 return CMD_WARNING;
9614 }
9615
9616 argv_find(argv, argc, "large-community-list", &idx);
9617 return bgp_show_lcommunity_list(vty, bgp, argv[idx + 1]->arg, afi, safi,
9618 uj);
52951b63
DS		 9619}
9620DEFUN (show_ip_bgp_large_community,
9621 show_ip_bgp_large_community_cmd,
4dd6177e 9622 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community [AA:BB:CC] [json]",
52951b63
DS		 9623 SHOW_STR
9624 IP_STR
9625 BGP_STR
9626 BGP_INSTANCE_HELP_STR
9bedbb1e 9627 BGP_AFI_HELP_STR
4dd6177e 9628 BGP_SAFI_WITH_LABEL_HELP_STR
52951b63
DS		 9629 "Display routes matching the large-communities\n"
9630 "List of large-community numbers\n"
9631 JSON_STR)
9632{
d62a17ae 9633 char *vrf = NULL;
9634 afi_t afi = AFI_IP6;
9635 safi_t safi = SAFI_UNICAST;
9636 int idx = 0;
9637
9638 if (argv_find(argv, argc, "ip", &idx))
9639 afi = AFI_IP;
9640 if (argv_find(argv, argc, "view", &idx)
9641 || argv_find(argv, argc, "vrf", &idx))
9642 vrf = argv[++idx]->arg;
9643 if (argv_find(argv, argc, "ipv4", &idx)
9644 || argv_find(argv, argc, "ipv6", &idx)) {
9645 afi = strmatch(argv[idx]->text, "ipv6") ? AFI_IP6 : AFI_IP;
9646 if (argv_find(argv, argc, "unicast", &idx)
9647 || argv_find(argv, argc, "multicast", &idx))
9648 safi = bgp_vty_safi_from_str(argv[idx]->text);
9649 }
9650
9f049418 9651 bool uj = use_json(argc, argv);
d62a17ae 9652
9653 struct bgp *bgp = bgp_lookup_by_name(vrf);
9654 if (bgp == NULL) {
9655 vty_out(vty, "Can't find BGP instance %s\n", vrf);
9656 return CMD_WARNING;
9657 }
9658
9659 if (argv_find(argv, argc, "AA:BB:CC", &idx))
9660 return bgp_show_lcommunity(vty, bgp, argc, argv, afi, safi, uj);
9661 else
9662 return bgp_show(vty, bgp, afi, safi,
9663 bgp_show_type_lcommunity_all, NULL, uj);
52951b63
DS		 9664}
9665
d62a17ae 9666static int bgp_table_stats(struct vty *vty, struct bgp *bgp, afi_t afi,
9667 safi_t safi);
e01ca200 9668
7b2ff250
DW		 9669
9670/* BGP route print out function without JSON */
af462945
DS		 9671DEFUN (show_ip_bgp,
9672 show_ip_bgp_cmd,
4dd6177e 9673 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]\
7b2ff250
DW		 9674 <dampening <parameters>\
9675 |route-map WORD\
9676 |prefix-list WORD\
9677 |filter-list WORD\
9678 |statistics\
7b2ff250
DW		 9679 |community-list <(1-500)|WORD> [exact-match]\
9680 |A.B.C.D/M longer-prefixes\
9681 |X:X::X:X/M longer-prefixes\
9682 >",
718e3744 9683 SHOW_STR
9684 IP_STR
9685 BGP_STR
a636c635 9686 BGP_INSTANCE_HELP_STR
4f280b15 9687 BGP_AFI_HELP_STR
4dd6177e 9688 BGP_SAFI_WITH_LABEL_HELP_STR
a636c635 9689 "Display detailed information about dampening\n"
af462945 9690 "Display detail of configured dampening parameters\n"
a636c635
DW		 9691 "Display routes matching the route-map\n"
9692 "A route-map to match on\n"
9693 "Display routes conforming to the prefix-list\n"
8c3deaae 9694 "Prefix-list name\n"
a636c635
DW		 9695 "Display routes conforming to the filter-list\n"
9696 "Regular expression access list name\n"
e01ca200 9697 "BGP RIB advertisement statistics\n"
a636c635
DW		 9698 "Display routes matching the community-list\n"
9699 "community-list number\n"
9700 "community-list name\n"
9701 "Exact match of the communities\n"
0c7b1b01 9702 "IPv4 prefix\n"
8c3deaae 9703 "Display route and more specific routes\n"
0c7b1b01 9704 "IPv6 prefix\n"
7b2ff250 9705 "Display route and more specific routes\n")
718e3744 9706{
d62a17ae 9707 afi_t afi = AFI_IP6;
9708 safi_t safi = SAFI_UNICAST;
9709 int exact_match = 0;
d62a17ae 9710 struct bgp *bgp = NULL;
9711 int idx = 0;
9712
9713 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 9714 &bgp, false);
d62a17ae 9715 if (!idx)
9716 return CMD_WARNING;
9717
d62a17ae 9718 if (argv_find(argv, argc, "dampening", &idx)) {
7b2ff250 9719 if (argv_find(argv, argc, "parameters", &idx))
d62a17ae 9720 return bgp_show_dampening_parameters(vty, afi, safi);
9721 }
c016b6c7 9722
d62a17ae 9723 if (argv_find(argv, argc, "prefix-list", &idx))
9724 return bgp_show_prefix_list(vty, bgp, argv[idx + 1]->arg, afi,
9725 safi, bgp_show_type_prefix_list);
9726
9727 if (argv_find(argv, argc, "filter-list", &idx))
9728 return bgp_show_filter_list(vty, bgp, argv[idx + 1]->arg, afi,
9729 safi, bgp_show_type_filter_list);
9730
9731 if (argv_find(argv, argc, "statistics", &idx))
9732 return bgp_table_stats(vty, bgp, afi, safi);
9733
9734 if (argv_find(argv, argc, "route-map", &idx))
9735 return bgp_show_route_map(vty, bgp, argv[idx + 1]->arg, afi,
9736 safi, bgp_show_type_route_map);
9737
d62a17ae 9738 if (argv_find(argv, argc, "community-list", &idx)) {
9739 const char *clist_number_or_name = argv[++idx]->arg;
9740 if (++idx < argc && strmatch(argv[idx]->text, "exact-match"))
9741 exact_match = 1;
9742 return bgp_show_community_list(vty, bgp, clist_number_or_name,
9743 exact_match, afi, safi);
9744 }
9745 /* prefix-longer */
9746 if (argv_find(argv, argc, "A.B.C.D/M", &idx)
9747 || argv_find(argv, argc, "X:X::X:X/M", &idx))
9748 return bgp_show_prefix_longer(vty, bgp, argv[idx]->arg, afi,
9749 safi,
9750 bgp_show_type_prefix_longer);
9751
7b2ff250
DW		 9752 return CMD_WARNING;
9753}
9754
9755/* BGP route print out function with JSON */
9756DEFUN (show_ip_bgp_json,
9757 show_ip_bgp_json_cmd,
9758 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]\
cf4898bc
QY		 9759 [cidr-only\
9760 |dampening <flap-statistics|dampened-paths>\
9761 |community [AA:NN|local-AS|no-advertise|no-export\
9762 |graceful-shutdown|no-peer|blackhole|llgr-stale|no-llgr\
9763 |accept-own|accept-own-nexthop|route-filter-v6\
9764 |route-filter-v4|route-filter-translated-v6\
9765 |route-filter-translated-v4] [exact-match]\
9766 ] [json]",
7b2ff250
DW		 9767 SHOW_STR
9768 IP_STR
9769 BGP_STR
9770 BGP_INSTANCE_HELP_STR
9771 BGP_AFI_HELP_STR
9772 BGP_SAFI_WITH_LABEL_HELP_STR
9773 "Display only routes with non-natural netmasks\n"
9774 "Display detailed information about dampening\n"
9775 "Display flap statistics of routes\n"
9776 "Display paths suppressed due to dampening\n"
9777 "Display routes matching the communities\n"
d0086e8e
AD		 9778 COMMUNITY_AANN_STR
9779 "Do not send outside local AS (well-known community)\n"
9780 "Do not advertise to any peer (well-known community)\n"
9781 "Do not export to next AS (well-known community)\n"
9782 "Graceful shutdown (well-known community)\n"
cf4898bc
QY		 9783 "Do not export to any peer (well-known community)\n"
9784 "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n"
9785 "Staled Long-lived Graceful Restart VPN route (well-known community)\n"
9786 "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n"
9787 "Should accept local VPN route if exported and imported into different VRF (well-known community)\n"
9788 "Should accept VPN route with local nexthop (well-known community)\n"
9789 "RT VPNv6 route filtering (well-known community)\n"
9790 "RT VPNv4 route filtering (well-known community)\n"
9791 "RT translated VPNv6 route filtering (well-known community)\n"
9792 "RT translated VPNv4 route filtering (well-known community)\n"
d0086e8e 9793 "Exact match of the communities\n"
7b2ff250
DW		 9794 JSON_STR)
9795{
9796 afi_t afi = AFI_IP6;
9797 safi_t safi = SAFI_UNICAST;
9798 enum bgp_show_type sh_type = bgp_show_type_normal;
9799 struct bgp *bgp = NULL;
9800 int idx = 0;
d0086e8e 9801 int exact_match = 0;
9f049418
DS		 9802 bool uj = use_json(argc, argv);
9803
9804 if (uj)
9805 argc--;
7b2ff250
DW		 9806
9807 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 9808 &bgp, uj);
7b2ff250
DW		 9809 if (!idx)
9810 return CMD_WARNING;
9811
7b2ff250
DW		 9812 if (argv_find(argv, argc, "cidr-only", &idx))
9813 return bgp_show(vty, bgp, afi, safi, bgp_show_type_cidr_only,
9814 NULL, uj);
9815
9816 if (argv_find(argv, argc, "dampening", &idx)) {
9817 if (argv_find(argv, argc, "dampened-paths", &idx))
9818 return bgp_show(vty, bgp, afi, safi,
9819 bgp_show_type_dampend_paths, NULL, uj);
9820 else if (argv_find(argv, argc, "flap-statistics", &idx))
9821 return bgp_show(vty, bgp, afi, safi,
9822 bgp_show_type_flap_statistics, NULL,
9823 uj);
9824 }
9825
9826 if (argv_find(argv, argc, "community", &idx)) {
79bc257a 9827 char *maybecomm = NULL;
cf4898bc 9828 char *community = NULL;
d0086e8e 9829
79bc257a
RW		 9830 if (idx + 1 < argc) {
9831 if (argv[idx + 1]->type == VARIABLE_TKN)
9832 maybecomm = argv[idx + 1]->arg;
9833 else
9834 maybecomm = argv[idx + 1]->text;
9835 }
9836
cf4898bc
QY		 9837 if (maybecomm && !strmatch(maybecomm, "json")
9838 && !strmatch(maybecomm, "exact-match"))
9839 community = maybecomm;
d0086e8e 9840
cf4898bc
QY		 9841 if (argv_find(argv, argc, "exact-match", &idx))
9842 exact_match = 1;
d0086e8e 9843
cf4898bc
QY		 9844 if (community)
9845 return bgp_show_community(vty, bgp, community,
9846 exact_match, afi, safi, uj);
9847 else
d0086e8e 9848 return (bgp_show(vty, bgp, afi, safi,
cf4898bc
QY		 9849 bgp_show_type_community_all, NULL,
9850 uj));
7b2ff250 9851 }
d0086e8e 9852
1ae44dfc 9853 return bgp_show(vty, bgp, afi, safi, sh_type, NULL, uj);
a636c635 9854}
47fc97cc 9855
718e3744 9856DEFUN (show_ip_bgp_route,
9857 show_ip_bgp_route_cmd,
4dd6177e 9858 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]"
ae19d7dd 9859 "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]",
718e3744 9860 SHOW_STR
9861 IP_STR
9862 BGP_STR
a636c635 9863 BGP_INSTANCE_HELP_STR
4f280b15 9864 BGP_AFI_HELP_STR
4dd6177e 9865 BGP_SAFI_WITH_LABEL_HELP_STR
b05a1c8b 9866 "Network in the BGP routing table to display\n"
0c7b1b01 9867 "IPv4 prefix\n"
8c3deaae 9868 "Network in the BGP routing table to display\n"
0c7b1b01 9869 "IPv6 prefix\n"
4092b06c 9870 "Display only the bestpath\n"
b05a1c8b 9871 "Display only multipaths\n"
9973d184 9872 JSON_STR)
4092b06c 9873{
d62a17ae 9874 int prefix_check = 0;
ae19d7dd 9875
d62a17ae 9876 afi_t afi = AFI_IP6;
9877 safi_t safi = SAFI_UNICAST;
9878 char *prefix = NULL;
9879 struct bgp *bgp = NULL;
9880 enum bgp_path_type path_type;
9f049418 9881 bool uj = use_json(argc, argv);
b05a1c8b 9882
d62a17ae 9883 int idx = 0;
ae19d7dd 9884
d62a17ae 9885 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 9886 &bgp, uj);
d62a17ae 9887 if (!idx)
9888 return CMD_WARNING;
c41247f5 9889
d62a17ae 9890 if (!bgp) {
9891 vty_out(vty,
9892 "Specified 'all' vrf's but this command currently only works per view/vrf\n");
9893 return CMD_WARNING;
9894 }
a636c635 9895
d62a17ae 9896 /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */
9897 if (argv_find(argv, argc, "A.B.C.D", &idx)
9898 || argv_find(argv, argc, "X:X::X:X", &idx))
9899 prefix_check = 0;
9900 else if (argv_find(argv, argc, "A.B.C.D/M", &idx)
9901 || argv_find(argv, argc, "X:X::X:X/M", &idx))
9902 prefix_check = 1;
9903
9904 if ((argv[idx]->type == IPV6_TKN || argv[idx]->type == IPV6_PREFIX_TKN)
9905 && afi != AFI_IP6) {
9906 vty_out(vty,
9907 "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n");
9908 return CMD_WARNING;
9909 }
9910 if ((argv[idx]->type == IPV4_TKN || argv[idx]->type == IPV4_PREFIX_TKN)
9911 && afi != AFI_IP) {
9912 vty_out(vty,
9913 "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n");
9914 return CMD_WARNING;
9915 }
9916
9917 prefix = argv[idx]->arg;
9918
9919 /* [<bestpath|multipath>] */
9920 if (argv_find(argv, argc, "bestpath", &idx))
360660c6 9921 path_type = BGP_PATH_SHOW_BESTPATH;
d62a17ae 9922 else if (argv_find(argv, argc, "multipath", &idx))
360660c6 9923 path_type = BGP_PATH_SHOW_MULTIPATH;
d62a17ae 9924 else
360660c6 9925 path_type = BGP_PATH_SHOW_ALL;
a636c635 9926
d62a17ae 9927 return bgp_show_route(vty, bgp, prefix, afi, safi, NULL, prefix_check,
9928 path_type, uj);
4092b06c
DS		 9929}
9930
8c3deaae
QY		 9931DEFUN (show_ip_bgp_regexp,
9932 show_ip_bgp_regexp_cmd,
4dd6177e 9933 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] regexp REGEX...",
8c3deaae
QY		 9934 SHOW_STR
9935 IP_STR
9936 BGP_STR
b00b230a 9937 BGP_INSTANCE_HELP_STR
4f280b15 9938 BGP_AFI_HELP_STR
4dd6177e 9939 BGP_SAFI_WITH_LABEL_HELP_STR
8c3deaae 9940 "Display routes matching the AS path regular expression\n"
a818ea74 9941 "A regular-expression (1234567890_^|[,{}() ]$*+.?-\\) to match the BGP AS paths\n")
8c3deaae 9942{
d62a17ae 9943 afi_t afi = AFI_IP6;
9944 safi_t safi = SAFI_UNICAST;
9945 struct bgp *bgp = NULL;
8c3deaae 9946
d62a17ae 9947 int idx = 0;
9948 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 9949 &bgp, false);
d62a17ae 9950 if (!idx)
9951 return CMD_WARNING;
8c3deaae 9952
d62a17ae 9953 // get index of regex
9954 argv_find(argv, argc, "regexp", &idx);
9955 idx++;
8c3deaae 9956
d62a17ae 9957 char *regstr = argv_concat(argv, argc, idx);
e889891d 9958 int rc = bgp_show_regexp(vty, bgp, (const char *)regstr, afi, safi,
d62a17ae 9959 bgp_show_type_regexp);
9960 XFREE(MTYPE_TMP, regstr);
9961 return rc;
8c3deaae
QY		 9962}
9963
a636c635
DW		 9964DEFUN (show_ip_bgp_instance_all,
9965 show_ip_bgp_instance_all_cmd,
4dd6177e 9966 "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] [json]",
4092b06c 9967 SHOW_STR
a636c635 9968 IP_STR
4092b06c 9969 BGP_STR
a636c635 9970 BGP_INSTANCE_ALL_HELP_STR
4f280b15 9971 BGP_AFI_HELP_STR
4dd6177e 9972 BGP_SAFI_WITH_LABEL_HELP_STR
9973d184 9973 JSON_STR)
4092b06c 9974{
d62a17ae 9975 afi_t afi = AFI_IP;
9976 safi_t safi = SAFI_UNICAST;
9977 struct bgp *bgp = NULL;
d62a17ae 9978 int idx = 0;
9f049418 9979 bool uj = use_json(argc, argv);
ae19d7dd 9980
d62a17ae 9981 if (uj)
9982 argc--;
e3e29b32 9983
9f049418
DS		 9984 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9985 &bgp, uj);
9986 if (!idx)
9987 return CMD_WARNING;
9988
d62a17ae 9989 bgp_show_all_instances_routes_vty(vty, afi, safi, uj);
9990 return CMD_SUCCESS;
e3e29b32
LB		 9991}
9992
a4d82a8a
PZ		 9993static int bgp_show_regexp(struct vty *vty, struct bgp *bgp, const char *regstr,
9994 afi_t afi, safi_t safi, enum bgp_show_type type)
718e3744 9995{
d62a17ae 9996 regex_t *regex;
9997 int rc;
e3e29b32 9998
c3900853
DA		 9999 if (!config_bgp_aspath_validate(regstr)) {
10000 vty_out(vty, "Invalid character in as-path access-list %s\n",
10001 regstr);
10002 return CMD_WARNING_CONFIG_FAILED;
10003 }
10004
d62a17ae 10005 regex = bgp_regcomp(regstr);
10006 if (!regex) {
10007 vty_out(vty, "Can't compile regexp %s\n", regstr);
10008 return CMD_WARNING;
10009 }
a636c635 10010
e889891d 10011 rc = bgp_show(vty, bgp, afi, safi, type, regex, 0);
d62a17ae 10012 bgp_regex_free(regex);
10013 return rc;
e3e29b32
LB		 10014}
10015
d62a17ae 10016static int bgp_show_prefix_list(struct vty *vty, struct bgp *bgp,
10017 const char *prefix_list_str, afi_t afi,
10018 safi_t safi, enum bgp_show_type type)
e3e29b32 10019{
d62a17ae 10020 struct prefix_list *plist;
718e3744 10021
d62a17ae 10022 plist = prefix_list_lookup(afi, prefix_list_str);
10023 if (plist == NULL) {
10024 vty_out(vty, "%% %s is not a valid prefix-list name\n",
10025 prefix_list_str);
10026 return CMD_WARNING;
10027 }
718e3744 10028
d62a17ae 10029 return bgp_show(vty, bgp, afi, safi, type, plist, 0);
4092b06c
DS		 10030}
10031
d62a17ae 10032static int bgp_show_filter_list(struct vty *vty, struct bgp *bgp,
10033 const char *filter, afi_t afi, safi_t safi,
10034 enum bgp_show_type type)
4092b06c 10035{
d62a17ae 10036 struct as_list *as_list;
718e3744 10037
d62a17ae 10038 as_list = as_list_lookup(filter);
10039 if (as_list == NULL) {
10040 vty_out(vty, "%% %s is not a valid AS-path access-list name\n",
10041 filter);
10042 return CMD_WARNING;
10043 }
a636c635 10044
d62a17ae 10045 return bgp_show(vty, bgp, afi, safi, type, as_list, 0);
718e3744 10046}
10047
d62a17ae 10048static int bgp_show_route_map(struct vty *vty, struct bgp *bgp,
10049 const char *rmap_str, afi_t afi, safi_t safi,
10050 enum bgp_show_type type)
718e3744 10051{
d62a17ae 10052 struct route_map *rmap;
bb46e94f 10053
d62a17ae 10054 rmap = route_map_lookup_by_name(rmap_str);
10055 if (!rmap) {
10056 vty_out(vty, "%% %s is not a valid route-map name\n", rmap_str);
10057 return CMD_WARNING;
10058 }
10059
10060 return bgp_show(vty, bgp, afi, safi, type, rmap, 0);
10061}
10062
7f323236
DW		 10063static int bgp_show_community(struct vty *vty, struct bgp *bgp,
10064 const char *comstr, int exact, afi_t afi,
9f049418 10065 safi_t safi, bool use_json)
d62a17ae 10066{
10067 struct community *com;
d62a17ae 10068 int ret = 0;
10069
7f323236 10070 com = community_str2com(comstr);
d62a17ae 10071 if (!com) {
7f323236 10072 vty_out(vty, "%% Community malformed: %s\n", comstr);
d62a17ae 10073 return CMD_WARNING;
10074 }
10075
10076 ret = bgp_show(vty, bgp, afi, safi,
10077 (exact ? bgp_show_type_community_exact
10078 : bgp_show_type_community),
d0086e8e 10079 com, use_json);
3c1f53de 10080 community_free(&com);
46c3ce83 10081
d62a17ae 10082 return ret;
718e3744 10083}
10084
d62a17ae 10085static int bgp_show_community_list(struct vty *vty, struct bgp *bgp,
10086 const char *com, int exact, afi_t afi,
10087 safi_t safi)
50ef26d4 10088{
d62a17ae 10089 struct community_list *list;
50ef26d4 10090
e237b0d2 10091 list = community_list_lookup(bgp_clist, com, 0, COMMUNITY_LIST_MASTER);
d62a17ae 10092 if (list == NULL) {
10093 vty_out(vty, "%% %s is not a valid community-list name\n", com);
10094 return CMD_WARNING;
10095 }
718e3744 10096
d62a17ae 10097 return bgp_show(vty, bgp, afi, safi,
10098 (exact ? bgp_show_type_community_list_exact
10099 : bgp_show_type_community_list),
10100 list, 0);
50ef26d4 10101}
10102
d62a17ae 10103static int bgp_show_prefix_longer(struct vty *vty, struct bgp *bgp,
10104 const char *prefix, afi_t afi, safi_t safi,
10105 enum bgp_show_type type)
718e3744 10106{
d62a17ae 10107 int ret;
10108 struct prefix *p;
47fc97cc 10109
d62a17ae 10110 p = prefix_new();
95cbbd2a 10111
d62a17ae 10112 ret = str2prefix(prefix, p);
10113 if (!ret) {
10114 vty_out(vty, "%% Malformed Prefix\n");
10115 return CMD_WARNING;
10116 }
47e9b292 10117
d62a17ae 10118 ret = bgp_show(vty, bgp, afi, safi, type, p, 0);
10119 prefix_free(p);
10120 return ret;
10121}
10122
10123static struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp,
9f049418 10124 const char *ip_str, bool use_json)
d62a17ae 10125{
10126 int ret;
10127 struct peer *peer;
10128 union sockunion su;
10129
10130 /* Get peer sockunion. */
10131 ret = str2sockunion(ip_str, &su);
10132 if (ret < 0) {
10133 peer = peer_lookup_by_conf_if(bgp, ip_str);
10134 if (!peer) {
10135 peer = peer_lookup_by_hostname(bgp, ip_str);
10136
10137 if (!peer) {
10138 if (use_json) {
10139 json_object *json_no = NULL;
10140 json_no = json_object_new_object();
10141 json_object_string_add(
10142 json_no,
10143 "malformedAddressOrName",
10144 ip_str);
10145 vty_out(vty, "%s\n",
66f80d74 10146 json_object_to_json_string_ext(
a4d82a8a
PZ		 10147 json_no,
10148 JSON_C_TO_STRING_PRETTY));
d62a17ae 10149 json_object_free(json_no);
10150 } else
10151 vty_out(vty,
10152 "%% Malformed address or name: %s\n",
10153 ip_str);
10154 return NULL;
10155 }
10156 }
10157 return peer;
10158 }
718e3744 10159
d62a17ae 10160 /* Peer structure lookup. */
10161 peer = peer_lookup(bgp, &su);
10162 if (!peer) {
10163 if (use_json) {
10164 json_object *json_no = NULL;
10165 json_no = json_object_new_object();
10166 json_object_string_add(json_no, "warning",
9e6e6f46 10167 "No such neighbor in this view/vrf");
d62a17ae 10168 vty_out(vty, "%s\n",
a4d82a8a
PZ		 10169 json_object_to_json_string_ext(
10170 json_no, JSON_C_TO_STRING_PRETTY));
d62a17ae 10171 json_object_free(json_no);
10172 } else
9e6e6f46 10173 vty_out(vty, "No such neighbor in this view/vrf\n");
d62a17ae 10174 return NULL;
10175 }
2815e61f 10176
d62a17ae 10177 return peer;
10178}
10179
10180enum bgp_stats {
10181 BGP_STATS_MAXBITLEN = 0,
10182 BGP_STATS_RIB,
10183 BGP_STATS_PREFIXES,
10184 BGP_STATS_TOTPLEN,
10185 BGP_STATS_UNAGGREGATEABLE,
10186 BGP_STATS_MAX_AGGREGATEABLE,
10187 BGP_STATS_AGGREGATES,
10188 BGP_STATS_SPACE,
10189 BGP_STATS_ASPATH_COUNT,
10190 BGP_STATS_ASPATH_MAXHOPS,
10191 BGP_STATS_ASPATH_TOTHOPS,
10192 BGP_STATS_ASPATH_MAXSIZE,
10193 BGP_STATS_ASPATH_TOTSIZE,
10194 BGP_STATS_ASN_HIGHEST,
10195 BGP_STATS_MAX,
a636c635 10196};
2815e61f 10197
d62a17ae 10198static const char *table_stats_strs[] = {
9d303b37
DL		 10199 [BGP_STATS_PREFIXES] = "Total Prefixes",
10200 [BGP_STATS_TOTPLEN] = "Average prefix length",
10201 [BGP_STATS_RIB] = "Total Advertisements",
10202 [BGP_STATS_UNAGGREGATEABLE] = "Unaggregateable prefixes",
10203 [BGP_STATS_MAX_AGGREGATEABLE] =
10204 "Maximum aggregateable prefixes",
10205 [BGP_STATS_AGGREGATES] = "BGP Aggregate advertisements",
10206 [BGP_STATS_SPACE] = "Address space advertised",
10207 [BGP_STATS_ASPATH_COUNT] = "Advertisements with paths",
10208 [BGP_STATS_ASPATH_MAXHOPS] = "Longest AS-Path (hops)",
10209 [BGP_STATS_ASPATH_MAXSIZE] = "Largest AS-Path (bytes)",
10210 [BGP_STATS_ASPATH_TOTHOPS] = "Average AS-Path length (hops)",
10211 [BGP_STATS_ASPATH_TOTSIZE] = "Average AS-Path size (bytes)",
10212 [BGP_STATS_ASN_HIGHEST] = "Highest public ASN",
10213 [BGP_STATS_MAX] = NULL,
a636c635 10214};
2815e61f 10215
d62a17ae 10216struct bgp_table_stats {
10217 struct bgp_table *table;
10218 unsigned long long counts[BGP_STATS_MAX];
8d0ab76d 10219 double total_space;
ff7924f6
PJ		 10220};
10221
a636c635
DW		 10222#if 0
10223#define TALLY_SIGFIG 100000
10224static unsigned long
10225ravg_tally (unsigned long count, unsigned long oldavg, unsigned long newval)
ff7924f6 10226{
a636c635
DW		 10227 unsigned long newtot = (count-1) * oldavg + (newval * TALLY_SIGFIG);
10228 unsigned long res = (newtot * TALLY_SIGFIG) / count;
10229 unsigned long ret = newtot / count;
07d0c4ed 10230
a636c635
DW		 10231 if ((res % TALLY_SIGFIG) > (TALLY_SIGFIG/2))
10232 return ret + 1;
10233 else
10234 return ret;
10235}
10236#endif
ff7924f6 10237
9c14ec72
RW		 10238static void bgp_table_stats_rn(struct bgp_node *rn, struct bgp_node *top,
10239 struct bgp_table_stats *ts, unsigned int space)
2815e61f 10240{
9c14ec72
RW		 10241 struct bgp_node *prn = bgp_node_parent_nolock(rn);
10242 struct bgp_path_info *pi;
d62a17ae 10243
9c14ec72
RW		 10244 if (rn == top)
10245 return;
d62a17ae 10246
9c14ec72
RW		 10247 if (!bgp_node_has_bgp_path_info_data(rn))
10248 return;
d62a17ae 10249
9c14ec72
RW		 10250 ts->counts[BGP_STATS_PREFIXES]++;
10251 ts->counts[BGP_STATS_TOTPLEN] += rn->p.prefixlen;
ff7924f6 10252
a636c635
DW		 10253#if 0
10254 ts->counts[BGP_STATS_AVGPLEN]
10255 = ravg_tally (ts->counts[BGP_STATS_PREFIXES],
10256 ts->counts[BGP_STATS_AVGPLEN],
10257 rn->p.prefixlen);
10258#endif
d62a17ae 10259
9c14ec72
RW		 10260 /* check if the prefix is included by any other announcements */
10261 while (prn && !bgp_node_has_bgp_path_info_data(prn))
10262 prn = bgp_node_parent_nolock(prn);
d62a17ae 10263
9c14ec72
RW		 10264 if (prn == NULL || prn == top) {
10265 ts->counts[BGP_STATS_UNAGGREGATEABLE]++;
10266 /* announced address space */
10267 if (space)
10268 ts->total_space += pow(2.0, space - rn->p.prefixlen);
10269 } else if (bgp_node_has_bgp_path_info_data(prn))
10270 ts->counts[BGP_STATS_MAX_AGGREGATEABLE]++;
d62a17ae 10271
9c14ec72
RW		 10272
10273 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
10274 ts->counts[BGP_STATS_RIB]++;
10275
10276 if (pi->attr
10277 && (CHECK_FLAG(pi->attr->flag,
10278 ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE))))
10279 ts->counts[BGP_STATS_AGGREGATES]++;
10280
10281 /* as-path stats */
10282 if (pi->attr && pi->attr->aspath) {
10283 unsigned int hops = aspath_count_hops(pi->attr->aspath);
10284 unsigned int size = aspath_size(pi->attr->aspath);
10285 as_t highest = aspath_highest(pi->attr->aspath);
10286
10287 ts->counts[BGP_STATS_ASPATH_COUNT]++;
10288
10289 if (hops > ts->counts[BGP_STATS_ASPATH_MAXHOPS])
10290 ts->counts[BGP_STATS_ASPATH_MAXHOPS] = hops;
10291
10292 if (size > ts->counts[BGP_STATS_ASPATH_MAXSIZE])
10293 ts->counts[BGP_STATS_ASPATH_MAXSIZE] = size;
10294
10295 ts->counts[BGP_STATS_ASPATH_TOTHOPS] += hops;
10296 ts->counts[BGP_STATS_ASPATH_TOTSIZE] += size;
a636c635 10297#if 0
07d0c4ed 10298 ts->counts[BGP_STATS_ASPATH_AVGHOPS]
a636c635
DW		 10299 = ravg_tally (ts->counts[BGP_STATS_ASPATH_COUNT],
10300 ts->counts[BGP_STATS_ASPATH_AVGHOPS],
10301 hops);
10302 ts->counts[BGP_STATS_ASPATH_AVGSIZE]
10303 = ravg_tally (ts->counts[BGP_STATS_ASPATH_COUNT],
10304 ts->counts[BGP_STATS_ASPATH_AVGSIZE],
10305 size);
10306#endif
9c14ec72
RW		 10307 if (highest > ts->counts[BGP_STATS_ASN_HIGHEST])
10308 ts->counts[BGP_STATS_ASN_HIGHEST] = highest;
10309 }
10310 }
10311}
10312
10313static int bgp_table_stats_walker(struct thread *t)
10314{
10315 struct bgp_node *rn, *nrn;
10316 struct bgp_node *top;
10317 struct bgp_table_stats *ts = THREAD_ARG(t);
10318 unsigned int space = 0;
10319
10320 if (!(top = bgp_table_top(ts->table)))
10321 return 0;
10322
10323 switch (ts->table->afi) {
10324 case AFI_IP:
10325 space = IPV4_MAX_BITLEN;
10326 break;
10327 case AFI_IP6:
10328 space = IPV6_MAX_BITLEN;
10329 break;
10330 default:
10331 return 0;
10332 }
10333
10334 ts->counts[BGP_STATS_MAXBITLEN] = space;
10335
10336 for (rn = top; rn; rn = bgp_route_next(rn)) {
10337 if (ts->table->safi == SAFI_MPLS_VPN) {
10338 struct bgp_table *table;
10339
10340 table = bgp_node_get_bgp_table_info(rn);
10341 if (!table)
10342 continue;
10343
10344 top = bgp_table_top(table);
10345 for (nrn = bgp_table_top(table); nrn;
10346 nrn = bgp_route_next(nrn))
10347 bgp_table_stats_rn(nrn, top, ts, space);
10348 } else {
10349 bgp_table_stats_rn(rn, top, ts, space);
d62a17ae 10350 }
10351 }
9c14ec72 10352
d62a17ae 10353 return 0;
2815e61f 10354}
ff7924f6 10355
d62a17ae 10356static int bgp_table_stats(struct vty *vty, struct bgp *bgp, afi_t afi,
10357 safi_t safi)
2815e61f 10358{
d62a17ae 10359 struct bgp_table_stats ts;
10360 unsigned int i;
019386c2 10361
d62a17ae 10362 if (!bgp->rib[afi][safi]) {
10363 vty_out(vty, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n",
10364 afi, safi);
10365 return CMD_WARNING;
10366 }
019386c2 10367
d62a17ae 10368 vty_out(vty, "BGP %s RIB statistics\n", afi_safi_print(afi, safi));
019386c2 10369
d62a17ae 10370 /* labeled-unicast routes live in the unicast table */
10371 if (safi == SAFI_LABELED_UNICAST)
10372 safi = SAFI_UNICAST;
019386c2 10373
d62a17ae 10374 memset(&ts, 0, sizeof(ts));
10375 ts.table = bgp->rib[afi][safi];
10376 thread_execute(bm->master, bgp_table_stats_walker, &ts, 0);
ff7924f6 10377
d62a17ae 10378 for (i = 0; i < BGP_STATS_MAX; i++) {
10379 if (!table_stats_strs[i])
10380 continue;
10381
10382 switch (i) {
a636c635
DW		 10383#if 0
10384 case BGP_STATS_ASPATH_AVGHOPS:
10385 case BGP_STATS_ASPATH_AVGSIZE:
10386 case BGP_STATS_AVGPLEN:
10387 vty_out (vty, "%-30s: ", table_stats_strs[i]);
10388 vty_out (vty, "%12.2f",
10389 (float)ts.counts[i] / (float)TALLY_SIGFIG);
10390 break;
10391#endif
d62a17ae 10392 case BGP_STATS_ASPATH_TOTHOPS:
10393 case BGP_STATS_ASPATH_TOTSIZE:
10394 vty_out(vty, "%-30s: ", table_stats_strs[i]);
10395 vty_out(vty, "%12.2f",
10396 ts.counts[i]
10397 ? (float)ts.counts[i]
10398 / (float)ts.counts
10399 [BGP_STATS_ASPATH_COUNT]
10400 : 0);
10401 break;
10402 case BGP_STATS_TOTPLEN:
10403 vty_out(vty, "%-30s: ", table_stats_strs[i]);
10404 vty_out(vty, "%12.2f",
10405 ts.counts[i]
10406 ? (float)ts.counts[i]
10407 / (float)ts.counts
10408 [BGP_STATS_PREFIXES]
10409 : 0);
10410 break;
10411 case BGP_STATS_SPACE:
10412 vty_out(vty, "%-30s: ", table_stats_strs[i]);
8d0ab76d
DL		 10413 vty_out(vty, "%12g\n", ts.total_space);
10414
10415 if (afi == AFI_IP6) {
10416 vty_out(vty, "%30s: ", "/32 equivalent ");
10417 vty_out(vty, "%12g\n",
a4d82a8a 10418 ts.total_space * pow(2.0, -128 + 32));
8d0ab76d
DL		 10419 vty_out(vty, "%30s: ", "/48 equivalent ");
10420 vty_out(vty, "%12g\n",
a4d82a8a 10421 ts.total_space * pow(2.0, -128 + 48));
8d0ab76d
DL		 10422 } else {
10423 vty_out(vty, "%30s: ", "% announced ");
10424 vty_out(vty, "%12.2f\n",
10425 ts.total_space * 100. * pow(2.0, -32));
10426 vty_out(vty, "%30s: ", "/8 equivalent ");
10427 vty_out(vty, "%12.2f\n",
a4d82a8a 10428 ts.total_space * pow(2.0, -32 + 8));
8d0ab76d
DL		 10429 vty_out(vty, "%30s: ", "/24 equivalent ");
10430 vty_out(vty, "%12.2f\n",
a4d82a8a 10431 ts.total_space * pow(2.0, -32 + 24));
8d0ab76d 10432 }
d62a17ae 10433 break;
10434 default:
10435 vty_out(vty, "%-30s: ", table_stats_strs[i]);
10436 vty_out(vty, "%12llu", ts.counts[i]);
10437 }
ff7924f6 10438
d62a17ae 10439 vty_out(vty, "\n");
10440 }
10441 return CMD_SUCCESS;
10442}
10443
10444enum bgp_pcounts {
10445 PCOUNT_ADJ_IN = 0,
10446 PCOUNT_DAMPED,
10447 PCOUNT_REMOVED,
10448 PCOUNT_HISTORY,
10449 PCOUNT_STALE,
10450 PCOUNT_VALID,
10451 PCOUNT_ALL,
10452 PCOUNT_COUNTED,
10453 PCOUNT_PFCNT, /* the figure we display to users */
10454 PCOUNT_MAX,
a636c635 10455};
718e3744 10456
d62a17ae 10457static const char *pcount_strs[] = {
9d303b37
DL		 10458 [PCOUNT_ADJ_IN] = "Adj-in",
10459 [PCOUNT_DAMPED] = "Damped",
10460 [PCOUNT_REMOVED] = "Removed",
10461 [PCOUNT_HISTORY] = "History",
10462 [PCOUNT_STALE] = "Stale",
10463 [PCOUNT_VALID] = "Valid",
10464 [PCOUNT_ALL] = "All RIB",
10465 [PCOUNT_COUNTED] = "PfxCt counted",
10466 [PCOUNT_PFCNT] = "Useable",
10467 [PCOUNT_MAX] = NULL,
a636c635 10468};
718e3744 10469
d62a17ae 10470struct peer_pcounts {
10471 unsigned int count[PCOUNT_MAX];
10472 const struct peer *peer;
10473 const struct bgp_table *table;
a636c635 10474};
47fc97cc 10475
d62a17ae 10476static int bgp_peer_count_walker(struct thread *t)
10477{
10478 struct bgp_node *rn;
10479 struct peer_pcounts *pc = THREAD_ARG(t);
10480 const struct peer *peer = pc->peer;
10481
10482 for (rn = bgp_table_top(pc->table); rn; rn = bgp_route_next(rn)) {
10483 struct bgp_adj_in *ain;
40381db7 10484 struct bgp_path_info *pi;
d62a17ae 10485
10486 for (ain = rn->adj_in; ain; ain = ain->next)
10487 if (ain->peer == peer)
10488 pc->count[PCOUNT_ADJ_IN]++;
10489
6f94b685
DS		 10490 for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {
10491
40381db7 10492 if (pi->peer != peer)
d62a17ae 10493 continue;
10494
10495 pc->count[PCOUNT_ALL]++;
10496
40381db7 10497 if (CHECK_FLAG(pi->flags, BGP_PATH_DAMPED))
d62a17ae 10498 pc->count[PCOUNT_DAMPED]++;
40381db7 10499 if (CHECK_FLAG(pi->flags, BGP_PATH_HISTORY))
d62a17ae 10500 pc->count[PCOUNT_HISTORY]++;
40381db7 10501 if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED))
d62a17ae 10502 pc->count[PCOUNT_REMOVED]++;
40381db7 10503 if (CHECK_FLAG(pi->flags, BGP_PATH_STALE))
d62a17ae 10504 pc->count[PCOUNT_STALE]++;
40381db7 10505 if (CHECK_FLAG(pi->flags, BGP_PATH_VALID))
d62a17ae 10506 pc->count[PCOUNT_VALID]++;
40381db7 10507 if (!CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE))
d62a17ae 10508 pc->count[PCOUNT_PFCNT]++;
10509
40381db7 10510 if (CHECK_FLAG(pi->flags, BGP_PATH_COUNTED)) {
d62a17ae 10511 pc->count[PCOUNT_COUNTED]++;
40381db7 10512 if (CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE))
1c50c1c0
QY		 10513 flog_err(
10514 EC_LIB_DEVELOPMENT,
10515 "Attempting to count but flags say it is unusable");
d62a17ae 10516 } else {
40381db7 10517 if (!CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE))
1c50c1c0
QY		 10518 flog_err(
10519 EC_LIB_DEVELOPMENT,
10520 "Not counted but flags say we should");
d62a17ae 10521 }
10522 }
10523 }
10524 return 0;
718e3744 10525}
10526
d62a17ae 10527static int bgp_peer_counts(struct vty *vty, struct peer *peer, afi_t afi,
9f049418 10528 safi_t safi, bool use_json)
856ca177 10529{
d62a17ae 10530 struct peer_pcounts pcounts = {.peer = peer};
10531 unsigned int i;
10532 json_object *json = NULL;
10533 json_object *json_loop = NULL;
856ca177 10534
d62a17ae 10535 if (use_json) {
10536 json = json_object_new_object();
10537 json_loop = json_object_new_object();
10538 }
718e3744 10539
d62a17ae 10540 if (!peer || !peer->bgp || !peer->afc[afi][safi]
10541 || !peer->bgp->rib[afi][safi]) {
10542 if (use_json) {
10543 json_object_string_add(
10544 json, "warning",
10545 "No such neighbor or address family");
10546 vty_out(vty, "%s\n", json_object_to_json_string(json));
10547 json_object_free(json);
10548 } else
10549 vty_out(vty, "%% No such neighbor or address family\n");
10550
10551 return CMD_WARNING;
10552 }
2a71e9ce 10553
d62a17ae 10554 memset(&pcounts, 0, sizeof(pcounts));
10555 pcounts.peer = peer;
10556 pcounts.table = peer->bgp->rib[afi][safi];
10557
10558 /* in-place call via thread subsystem so as to record execution time
d316210b
PZ		 10559 * stats for the thread-walk (i.e. ensure this can't be blamed on
10560 * on just vty_read()).
10561 */
d62a17ae 10562 thread_execute(bm->master, bgp_peer_count_walker, &pcounts, 0);
10563
10564 if (use_json) {
10565 json_object_string_add(json, "prefixCountsFor", peer->host);
10566 json_object_string_add(json, "multiProtocol",
10567 afi_safi_print(afi, safi));
10568 json_object_int_add(json, "pfxCounter",
10569 peer->pcount[afi][safi]);
10570
10571 for (i = 0; i < PCOUNT_MAX; i++)
10572 json_object_int_add(json_loop, pcount_strs[i],
10573 pcounts.count[i]);
10574
10575 json_object_object_add(json, "ribTableWalkCounters", json_loop);
10576
10577 if (pcounts.count[PCOUNT_PFCNT] != peer->pcount[afi][safi]) {
10578 json_object_string_add(json, "pfxctDriftFor",
10579 peer->host);
10580 json_object_string_add(
10581 json, "recommended",
10582 "Please report this bug, with the above command output");
10583 }
996c9314
LB		 10584 vty_out(vty, "%s\n", json_object_to_json_string_ext(
10585 json, JSON_C_TO_STRING_PRETTY));
d62a17ae 10586 json_object_free(json);
10587 } else {
10588
10589 if (peer->hostname
10590 && bgp_flag_check(peer->bgp, BGP_FLAG_SHOW_HOSTNAME)) {
10591 vty_out(vty, "Prefix counts for %s/%s, %s\n",
10592 peer->hostname, peer->host,
10593 afi_safi_print(afi, safi));
10594 } else {
10595 vty_out(vty, "Prefix counts for %s, %s\n", peer->host,
10596 afi_safi_print(afi, safi));
10597 }
10598
10599 vty_out(vty, "PfxCt: %ld\n", peer->pcount[afi][safi]);
10600 vty_out(vty, "\nCounts from RIB table walk:\n\n");
10601
10602 for (i = 0; i < PCOUNT_MAX; i++)
10603 vty_out(vty, "%20s: %-10d\n", pcount_strs[i],
10604 pcounts.count[i]);
10605
10606 if (pcounts.count[PCOUNT_PFCNT] != peer->pcount[afi][safi]) {
10607 vty_out(vty, "%s [pcount] PfxCt drift!\n", peer->host);
10608 vty_out(vty,
10609 "Please report this bug, with the above command output\n");
10610 }
10611 }
10612
10613 return CMD_SUCCESS;
718e3744 10614}
10615
a636c635
DW		 10616DEFUN (show_ip_bgp_instance_neighbor_prefix_counts,
10617 show_ip_bgp_instance_neighbor_prefix_counts_cmd,
c1a44e43 10618 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_CMD_STR"]] "
30a6a167 10619 "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
718e3744 10620 SHOW_STR
10621 IP_STR
10622 BGP_STR
8386ac43 10623 BGP_INSTANCE_HELP_STR
9bedbb1e
DW		 10624 BGP_AFI_HELP_STR
10625 BGP_SAFI_HELP_STR
0b16f239
DS		 10626 "Detailed information on TCP and BGP neighbor connections\n"
10627 "Neighbor to display information about\n"
10628 "Neighbor to display information about\n"
91d37724 10629 "Neighbor on BGP configured interface\n"
a636c635 10630 "Display detailed prefix count information\n"
9973d184 10631 JSON_STR)
0b16f239 10632{
d62a17ae 10633 afi_t afi = AFI_IP6;
10634 safi_t safi = SAFI_UNICAST;
10635 struct peer *peer;
10636 int idx = 0;
10637 struct bgp *bgp = NULL;
9f049418
DS		 10638 bool uj = use_json(argc, argv);
10639
10640 if (uj)
10641 argc--;
856ca177 10642
d62a17ae 10643 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 10644 &bgp, uj);
d62a17ae 10645 if (!idx)
10646 return CMD_WARNING;
0b16f239 10647
d62a17ae 10648 argv_find(argv, argc, "neighbors", &idx);
10649 peer = peer_lookup_in_view(vty, bgp, argv[idx + 1]->arg, uj);
10650 if (!peer)
10651 return CMD_WARNING;
bb46e94f 10652
d62a17ae 10653 return bgp_peer_counts(vty, peer, AFI_IP, SAFI_UNICAST, uj);
a636c635 10654}
0b16f239 10655
d6902373
PG		 10656#ifdef KEEP_OLD_VPN_COMMANDS
10657DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts,
10658 show_ip_bgp_vpn_neighbor_prefix_counts_cmd,
10659 "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
2a71e9ce
TP		 10660 SHOW_STR
10661 IP_STR
10662 BGP_STR
d6902373 10663 BGP_VPNVX_HELP_STR
91d37724 10664 "Display information about all VPNv4 NLRIs\n"
2a71e9ce
TP		 10665 "Detailed information on TCP and BGP neighbor connections\n"
10666 "Neighbor to display information about\n"
10667 "Neighbor to display information about\n"
91d37724 10668 "Neighbor on BGP configured interface\n"
a636c635 10669 "Display detailed prefix count information\n"
9973d184 10670 JSON_STR)
a636c635 10671{
d62a17ae 10672 int idx_peer = 6;
10673 struct peer *peer;
9f049418 10674 bool uj = use_json(argc, argv);
a636c635 10675
d62a17ae 10676 peer = peer_lookup_in_view(vty, NULL, argv[idx_peer]->arg, uj);
10677 if (!peer)
10678 return CMD_WARNING;
10679
10680 return bgp_peer_counts(vty, peer, AFI_IP, SAFI_MPLS_VPN, uj);
a636c635
DW		 10681}
10682
d6902373
PG		 10683DEFUN (show_ip_bgp_vpn_all_route_prefix,
10684 show_ip_bgp_vpn_all_route_prefix_cmd,
10685 "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]",
91d37724
QY		 10686 SHOW_STR
10687 IP_STR
10688 BGP_STR
d6902373 10689 BGP_VPNVX_HELP_STR
91d37724
QY		 10690 "Display information about all VPNv4 NLRIs\n"
10691 "Network in the BGP routing table to display\n"
3a2d747c 10692 "Network in the BGP routing table to display\n"
9973d184 10693 JSON_STR)
91d37724 10694{
d62a17ae 10695 int idx = 0;
10696 char *network = NULL;
10697 struct bgp *bgp = bgp_get_default();
10698 if (!bgp) {
10699 vty_out(vty, "Can't find default instance\n");
10700 return CMD_WARNING;
10701 }
87e34b58 10702
d62a17ae 10703 if (argv_find(argv, argc, "A.B.C.D", &idx))
10704 network = argv[idx]->arg;
10705 else if (argv_find(argv, argc, "A.B.C.D/M", &idx))
10706 network = argv[idx]->arg;
10707 else {
10708 vty_out(vty, "Unable to figure out Network\n");
10709 return CMD_WARNING;
10710 }
87e34b58 10711
d62a17ae 10712 return bgp_show_route(vty, bgp, network, AFI_IP, SAFI_MPLS_VPN, NULL, 0,
360660c6 10713 BGP_PATH_SHOW_ALL, use_json(argc, argv));
91d37724 10714}
d6902373 10715#endif /* KEEP_OLD_VPN_COMMANDS */
91d37724 10716
4c63a661
PG		 10717DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix,
10718 show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd,
10719 "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]",
10720 SHOW_STR
10721 IP_STR
10722 BGP_STR
10723 L2VPN_HELP_STR
10724 EVPN_HELP_STR
10725 "Display information about all EVPN NLRIs\n"
10726 "Network in the BGP routing table to display\n"
10727 "Network in the BGP routing table to display\n"
10728 JSON_STR)
10729{
d62a17ae 10730 int idx = 0;
10731 char *network = NULL;
a636c635 10732
d62a17ae 10733 if (argv_find(argv, argc, "A.B.C.D", &idx))
10734 network = argv[idx]->arg;
10735 else if (argv_find(argv, argc, "A.B.C.D/M", &idx))
10736 network = argv[idx]->arg;
10737 else {
10738 vty_out(vty, "Unable to figure out Network\n");
10739 return CMD_WARNING;
10740 }
10741 return bgp_show_route(vty, NULL, network, AFI_L2VPN, SAFI_EVPN, NULL, 0,
360660c6 10742 BGP_PATH_SHOW_ALL, use_json(argc, argv));
d62a17ae 10743}
10744
10745static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi,
6392aaa6 10746 safi_t safi, enum bgp_show_adj_route_type type,
9f049418 10747 const char *rmap_name, bool use_json,
6392aaa6 10748 json_object *json)
d62a17ae 10749{
10750 struct bgp_table *table;
10751 struct bgp_adj_in *ain;
10752 struct bgp_adj_out *adj;
10753 unsigned long output_count;
10754 unsigned long filtered_count;
10755 struct bgp_node *rn;
10756 int header1 = 1;
10757 struct bgp *bgp;
10758 int header2 = 1;
10759 struct attr attr;
10760 int ret;
10761 struct update_subgroup *subgrp;
10762 json_object *json_scode = NULL;
10763 json_object *json_ocode = NULL;
10764 json_object *json_ar = NULL;
10765 struct peer_af *paf;
f99def61 10766 bool route_filtered;
d62a17ae 10767
10768 if (use_json) {
10769 json_scode = json_object_new_object();
10770 json_ocode = json_object_new_object();
10771 json_ar = json_object_new_object();
10772
10773 json_object_string_add(json_scode, "suppressed", "s");
10774 json_object_string_add(json_scode, "damped", "d");
10775 json_object_string_add(json_scode, "history", "h");
10776 json_object_string_add(json_scode, "valid", "*");
10777 json_object_string_add(json_scode, "best", ">");
10778 json_object_string_add(json_scode, "multipath", "=");
10779 json_object_string_add(json_scode, "internal", "i");
10780 json_object_string_add(json_scode, "ribFailure", "r");
10781 json_object_string_add(json_scode, "stale", "S");
10782 json_object_string_add(json_scode, "removed", "R");
10783
10784 json_object_string_add(json_ocode, "igp", "i");
10785 json_object_string_add(json_ocode, "egp", "e");
10786 json_object_string_add(json_ocode, "incomplete", "?");
10787 }
a636c635 10788
d62a17ae 10789 bgp = peer->bgp;
a636c635 10790
d62a17ae 10791 if (!bgp) {
10792 if (use_json) {
10793 json_object_string_add(json, "alert", "no BGP");
10794 vty_out(vty, "%s\n", json_object_to_json_string(json));
10795 json_object_free(json);
10796 } else
10797 vty_out(vty, "%% No bgp\n");
10798 return;
10799 }
a636c635 10800
c512a642
EDP		 10801 /* labeled-unicast routes live in the unicast table */
10802 if (safi == SAFI_LABELED_UNICAST)
10803 table = bgp->rib[afi][SAFI_UNICAST];
10804 else
10805 table = bgp->rib[afi][safi];
d62a17ae 10806
10807 output_count = filtered_count = 0;
10808 subgrp = peer_subgroup(peer, afi, safi);
10809
6392aaa6 10810 if (type == bgp_show_adj_route_advertised && subgrp
d62a17ae 10811 && CHECK_FLAG(subgrp->sflags, SUBGRP_STATUS_DEFAULT_ORIGINATE)) {
10812 if (use_json) {
10813 json_object_int_add(json, "bgpTableVersion",
10814 table->version);
10815 json_object_string_add(json, "bgpLocalRouterId",
10816 inet_ntoa(bgp->router_id));
01eced22
AD		 10817 json_object_int_add(json, "defaultLocPrf",
10818 bgp->default_local_pref);
10819 json_object_int_add(json, "localAS", bgp->as);
d62a17ae 10820 json_object_object_add(json, "bgpStatusCodes",
10821 json_scode);
10822 json_object_object_add(json, "bgpOriginCodes",
10823 json_ocode);
07d0c4ed
DA		 10824 json_object_string_add(
10825 json, "bgpOriginatingDefaultNetwork",
10826 (afi == AFI_IP) ? "0.0.0.0/0" : "::/0");
d62a17ae 10827 } else {
996c9314 10828 vty_out(vty, "BGP table version is %" PRIu64
9df8b37c 10829 ", local router ID is %s, vrf id ",
d62a17ae 10830 table->version, inet_ntoa(bgp->router_id));
9df8b37c
PZ		 10831 if (bgp->vrf_id == VRF_UNKNOWN)
10832 vty_out(vty, "%s", VRFID_NONE_STR);
10833 else
10834 vty_out(vty, "%u", bgp->vrf_id);
10835 vty_out(vty, "\n");
01eced22
AD		 10836 vty_out(vty, "Default local pref %u, ",
10837 bgp->default_local_pref);
10838 vty_out(vty, "local AS %u\n", bgp->as);
d62a17ae 10839 vty_out(vty, BGP_SHOW_SCODE_HEADER);
9df8b37c 10840 vty_out(vty, BGP_SHOW_NCODE_HEADER);
d62a17ae 10841 vty_out(vty, BGP_SHOW_OCODE_HEADER);
10842
07d0c4ed
DA		 10843 vty_out(vty, "Originating default network %s\n\n",
10844 (afi == AFI_IP) ? "0.0.0.0/0" : "::/0");
d62a17ae 10845 }
10846 header1 = 0;
10847 }
a636c635 10848
d62a17ae 10849 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
6392aaa6
PM		 10850 if (type == bgp_show_adj_route_received
10851 || type == bgp_show_adj_route_filtered) {
d62a17ae 10852 for (ain = rn->adj_in; ain; ain = ain->next) {
6392aaa6 10853 if (ain->peer != peer || !ain->attr)
ea47320b 10854 continue;
6392aaa6 10855
ea47320b
DL		 10856 if (header1) {
10857 if (use_json) {
10858 json_object_int_add(
60466a63 10859 json, "bgpTableVersion",
ea47320b
DL		 10860 0);
10861 json_object_string_add(
10862 json,
10863 "bgpLocalRouterId",
10864 inet_ntoa(
10865 bgp->router_id));
01eced22
AD		 10866 json_object_int_add(json,
10867 "defaultLocPrf",
10868 bgp->default_local_pref);
10869 json_object_int_add(json,
10870 "localAS", bgp->as);
ea47320b 10871 json_object_object_add(
60466a63 10872 json, "bgpStatusCodes",
ea47320b
DL		 10873 json_scode);
10874 json_object_object_add(
60466a63 10875 json, "bgpOriginCodes",
ea47320b
DL		 10876 json_ocode);
10877 } else {
10878 vty_out(vty,
9df8b37c 10879 "BGP table version is 0, local router ID is %s, vrf id ",
ea47320b 10880 inet_ntoa(
9df8b37c
PZ		 10881 bgp->router_id));
10882 if (bgp->vrf_id == VRF_UNKNOWN)
10883 vty_out(vty, "%s",
10884 VRFID_NONE_STR);
10885 else
10886 vty_out(vty, "%u",
10887 bgp->vrf_id);
10888 vty_out(vty, "\n");
01eced22
AD		 10889 vty_out(vty,
10890 "Default local pref %u, ",
10891 bgp->default_local_pref);
10892 vty_out(vty, "local AS %u\n",
10893 bgp->as);
ea47320b
DL		 10894 vty_out(vty,
10895 BGP_SHOW_SCODE_HEADER);
9df8b37c
PZ		 10896 vty_out(vty,
10897 BGP_SHOW_NCODE_HEADER);
ea47320b
DL		 10898 vty_out(vty,
10899 BGP_SHOW_OCODE_HEADER);
d62a17ae 10900 }
ea47320b
DL		 10901 header1 = 0;
10902 }
10903 if (header2) {
10904 if (!use_json)
10905 vty_out(vty, BGP_SHOW_HEADER);
10906 header2 = 0;
10907 }
6392aaa6
PM		 10908
10909 bgp_attr_dup(&attr, ain->attr);
f99def61
AD		 10910 route_filtered = false;
10911
10912 /* Filter prefix using distribute list,
10913 * filter list or prefix list
10914 */
10915 if ((bgp_input_filter(peer, &rn->p, &attr, afi,
10916 safi)) == FILTER_DENY)
10917 route_filtered = true;
10918
10919 /* Filter prefix using route-map */
6392aaa6 10920 ret = bgp_input_modifier(peer, &rn->p, &attr,
13c8e163 10921 afi, safi, rmap_name);
6392aaa6 10922
13c8e163
AD		 10923 if (type == bgp_show_adj_route_filtered &&
10924 !route_filtered && ret != RMAP_DENY) {
b755861b 10925 bgp_attr_undup(&attr, ain->attr);
6392aaa6 10926 continue;
d62a17ae 10927 }
6392aaa6 10928
13c8e163
AD		 10929 if (type == bgp_show_adj_route_received &&
10930 (route_filtered || ret == RMAP_DENY))
6392aaa6
PM		 10931 filtered_count++;
10932
10933 route_vty_out_tmp(vty, &rn->p, &attr, safi,
10934 use_json, json_ar);
b755861b 10935 bgp_attr_undup(&attr, ain->attr);
6392aaa6 10936 output_count++;
d62a17ae 10937 }
6392aaa6 10938 } else if (type == bgp_show_adj_route_advertised) {
a79c04e7 10939 RB_FOREACH (adj, bgp_adj_out_rb, &rn->adj_out)
924c3f6a 10940 SUBGRP_FOREACH_PEER (adj->subgroup, paf) {
b755861b 10941 if (paf->peer != peer || !adj->attr)
924c3f6a 10942 continue;
d62a17ae 10943
924c3f6a
DS		 10944 if (header1) {
10945 if (use_json) {
10946 json_object_int_add(
10947 json,
10948 "bgpTableVersion",
10949 table->version);
10950 json_object_string_add(
10951 json,
10952 "bgpLocalRouterId",
10953 inet_ntoa(
10954 bgp->router_id));
01eced22
AD		 10955 json_object_int_add(
10956 json, "defaultLocPrf",
10957 bgp->default_local_pref
10958 );
10959 json_object_int_add(
10960 json, "localAS",
10961 bgp->as);
924c3f6a
DS		 10962 json_object_object_add(
10963 json,
10964 "bgpStatusCodes",
10965 json_scode);
10966 json_object_object_add(
10967 json,
10968 "bgpOriginCodes",
10969 json_ocode);
10970 } else {
10971 vty_out(vty,
10972 "BGP table version is %" PRIu64
9df8b37c 10973 ", local router ID is %s, vrf id ",
924c3f6a
DS		 10974 table->version,
10975 inet_ntoa(
10976 bgp->router_id));
9df8b37c
PZ		 10977 if (bgp->vrf_id ==
10978 VRF_UNKNOWN)
10979 vty_out(vty,
10980 "%s",
10981 VRFID_NONE_STR);
10982 else
10983 vty_out(vty,
10984 "%u",
10985 bgp->vrf_id);
10986 vty_out(vty, "\n");
01eced22
AD		 10987 vty_out(vty,
10988 "Default local pref %u, ",
10989 bgp->default_local_pref
10990 );
10991 vty_out(vty,
10992 "local AS %u\n",
10993 bgp->as);
924c3f6a
DS		 10994 vty_out(vty,
10995 BGP_SHOW_SCODE_HEADER);
9df8b37c
PZ		 10996 vty_out(vty,
10997 BGP_SHOW_NCODE_HEADER);
924c3f6a
DS		 10998 vty_out(vty,
10999 BGP_SHOW_OCODE_HEADER);
a2addae8 11000 }
924c3f6a
DS		 11001 header1 = 0;
11002 }
924c3f6a
DS		 11003 if (header2) {
11004 if (!use_json)
11005 vty_out(vty,
11006 BGP_SHOW_HEADER);
11007 header2 = 0;
11008 }
d62a17ae 11009
b755861b
PM		 11010 bgp_attr_dup(&attr, adj->attr);
11011 ret = bgp_output_modifier(
11012 peer, &rn->p, &attr, afi, safi,
11013 rmap_name);
f46d8e1e 11014
b755861b
PM		 11015 if (ret != RMAP_DENY) {
11016 route_vty_out_tmp(vty, &rn->p,
11017 &attr, safi,
11018 use_json,
11019 json_ar);
11020 output_count++;
11021 } else {
11022 filtered_count++;
a2addae8 11023 }
b755861b
PM		 11024
11025 bgp_attr_undup(&attr, adj->attr);
924c3f6a 11026 }
d62a17ae 11027 }
11028 }
d62a17ae 11029
d62a17ae 11030 if (use_json) {
6392aaa6
PM		 11031 json_object_object_add(json, "advertisedRoutes", json_ar);
11032 json_object_int_add(json, "totalPrefixCounter", output_count);
11033 json_object_int_add(json, "filteredPrefixCounter",
11034 filtered_count);
11035
996c9314
LB		 11036 vty_out(vty, "%s\n", json_object_to_json_string_ext(
11037 json, JSON_C_TO_STRING_PRETTY));
d62a17ae 11038 json_object_free(json);
6392aaa6
PM		 11039 } else if (output_count > 0) {
11040 if (filtered_count > 0)
11041 vty_out(vty,
11042 "\nTotal number of prefixes %ld (%ld filtered)\n",
11043 output_count, filtered_count);
11044 else
11045 vty_out(vty, "\nTotal number of prefixes %ld\n",
11046 output_count);
d62a17ae 11047 }
a636c635 11048}
2a71e9ce 11049
d62a17ae 11050static int peer_adj_routes(struct vty *vty, struct peer *peer, afi_t afi,
6392aaa6 11051 safi_t safi, enum bgp_show_adj_route_type type,
9f049418 11052 const char *rmap_name, bool use_json)
0b16f239 11053{
d62a17ae 11054 json_object *json = NULL;
0b16f239 11055
d62a17ae 11056 if (use_json)
11057 json = json_object_new_object();
0b16f239 11058
d62a17ae 11059 if (!peer || !peer->afc[afi][safi]) {
11060 if (use_json) {
11061 json_object_string_add(
11062 json, "warning",
11063 "No such neighbor or address family");
11064 vty_out(vty, "%s\n", json_object_to_json_string(json));
11065 json_object_free(json);
11066 } else
11067 vty_out(vty, "%% No such neighbor or address family\n");
0b16f239 11068
d62a17ae 11069 return CMD_WARNING;
11070 }
11071
6392aaa6
PM		 11072 if ((type == bgp_show_adj_route_received
11073 || type == bgp_show_adj_route_filtered)
d62a17ae 11074 && !CHECK_FLAG(peer->af_flags[afi][safi],
11075 PEER_FLAG_SOFT_RECONFIG)) {
11076 if (use_json) {
11077 json_object_string_add(
11078 json, "warning",
11079 "Inbound soft reconfiguration not enabled");
11080 vty_out(vty, "%s\n", json_object_to_json_string(json));
11081 json_object_free(json);
11082 } else
11083 vty_out(vty,
11084 "%% Inbound soft reconfiguration not enabled\n");
11085
11086 return CMD_WARNING;
11087 }
0b16f239 11088
6392aaa6 11089 show_adj_route(vty, peer, afi, safi, type, rmap_name, use_json, json);
0b16f239 11090
d62a17ae 11091 return CMD_SUCCESS;
a636c635 11092}
50ef26d4 11093
a636c635
DW		 11094DEFUN (show_ip_bgp_instance_neighbor_advertised_route,
11095 show_ip_bgp_instance_neighbor_advertised_route_cmd,
4dd6177e 11096 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] "
6392aaa6 11097 "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]",
718e3744 11098 SHOW_STR
11099 IP_STR
11100 BGP_STR
a636c635 11101 BGP_INSTANCE_HELP_STR
7395a2c9 11102 BGP_AFI_HELP_STR
4dd6177e 11103 BGP_SAFI_WITH_LABEL_HELP_STR
718e3744 11104 "Detailed information on TCP and BGP neighbor connections\n"
11105 "Neighbor to display information about\n"
11106 "Neighbor to display information about\n"
91d37724 11107 "Neighbor on BGP configured interface\n"
a636c635 11108 "Display the routes advertised to a BGP neighbor\n"
6392aaa6
PM		 11109 "Display the received routes from neighbor\n"
11110 "Display the filtered routes received from neighbor\n"
a636c635
DW		 11111 "Route-map to modify the attributes\n"
11112 "Name of the route map\n"
9973d184 11113 JSON_STR)
718e3744 11114{
d62a17ae 11115 afi_t afi = AFI_IP6;
11116 safi_t safi = SAFI_UNICAST;
11117 char *rmap_name = NULL;
11118 char *peerstr = NULL;
d62a17ae 11119 struct bgp *bgp = NULL;
11120 struct peer *peer;
6392aaa6 11121 enum bgp_show_adj_route_type type = bgp_show_adj_route_advertised;
d62a17ae 11122 int idx = 0;
9f049418 11123 bool uj = use_json(argc, argv);
6392aaa6 11124
d62a17ae 11125 if (uj)
11126 argc--;
30a6a167 11127
9f049418
DS		 11128 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
11129 &bgp, uj);
11130 if (!idx)
11131 return CMD_WARNING;
11132
d62a17ae 11133 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11134 argv_find(argv, argc, "neighbors", &idx);
11135 peerstr = argv[++idx]->arg;
8c3deaae 11136
d62a17ae 11137 peer = peer_lookup_in_view(vty, bgp, peerstr, uj);
11138 if (!peer)
11139 return CMD_WARNING;
856ca177 11140
d62a17ae 11141 if (argv_find(argv, argc, "advertised-routes", &idx))
6392aaa6
PM		 11142 type = bgp_show_adj_route_advertised;
11143 else if (argv_find(argv, argc, "received-routes", &idx))
11144 type = bgp_show_adj_route_received;
11145 else if (argv_find(argv, argc, "filtered-routes", &idx))
11146 type = bgp_show_adj_route_filtered;
11147
d62a17ae 11148 if (argv_find(argv, argc, "route-map", &idx))
11149 rmap_name = argv[++idx]->arg;
95cbbd2a 11150
6392aaa6 11151 return peer_adj_routes(vty, peer, afi, safi, type, rmap_name, uj);
95cbbd2a
ML		 11152}
11153
718e3744 11154DEFUN (show_ip_bgp_neighbor_received_prefix_filter,
11155 show_ip_bgp_neighbor_received_prefix_filter_cmd,
8c3deaae 11156 "show [ip] bgp [<ipv4|ipv6> [unicast]] neighbors <A.B.C.D|X:X::X:X|WORD> received prefix-filter [json]",
718e3744 11157 SHOW_STR
11158 IP_STR
11159 BGP_STR
8c3deaae
QY		 11160 "Address Family\n"
11161 "Address Family\n"
718e3744 11162 "Address Family modifier\n"
11163 "Detailed information on TCP and BGP neighbor connections\n"
11164 "Neighbor to display information about\n"
11165 "Neighbor to display information about\n"
91d37724 11166 "Neighbor on BGP configured interface\n"
718e3744 11167 "Display information received from a BGP neighbor\n"
856ca177 11168 "Display the prefixlist filter\n"
9973d184 11169 JSON_STR)
718e3744 11170{
d62a17ae 11171 afi_t afi = AFI_IP6;
11172 safi_t safi = SAFI_UNICAST;
11173 char *peerstr = NULL;
11174
11175 char name[BUFSIZ];
11176 union sockunion su;
11177 struct peer *peer;
11178 int count, ret;
11179
11180 int idx = 0;
11181
11182 /* show [ip] bgp */
11183 if (argv_find(argv, argc, "ip", &idx))
11184 afi = AFI_IP;
11185 /* [<ipv4|ipv6> [unicast]] */
11186 if (argv_find(argv, argc, "ipv4", &idx))
11187 afi = AFI_IP;
11188 if (argv_find(argv, argc, "ipv6", &idx))
11189 afi = AFI_IP6;
11190 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11191 argv_find(argv, argc, "neighbors", &idx);
11192 peerstr = argv[++idx]->arg;
11193
9f049418 11194 bool uj = use_json(argc, argv);
d62a17ae 11195
11196 ret = str2sockunion(peerstr, &su);
11197 if (ret < 0) {
11198 peer = peer_lookup_by_conf_if(NULL, peerstr);
11199 if (!peer) {
11200 if (uj)
11201 vty_out(vty, "{}\n");
11202 else
11203 vty_out(vty,
11204 "%% Malformed address or name: %s\n",
11205 peerstr);
11206 return CMD_WARNING;
11207 }
11208 } else {
11209 peer = peer_lookup(NULL, &su);
11210 if (!peer) {
11211 if (uj)
11212 vty_out(vty, "{}\n");
11213 else
11214 vty_out(vty, "No peer\n");
11215 return CMD_WARNING;
11216 }
11217 }
718e3744 11218
d62a17ae 11219 sprintf(name, "%s.%d.%d", peer->host, afi, safi);
11220 count = prefix_bgp_show_prefix_list(NULL, afi, name, uj);
11221 if (count) {
11222 if (!uj)
11223 vty_out(vty, "Address Family: %s\n",
11224 afi_safi_print(afi, safi));
11225 prefix_bgp_show_prefix_list(vty, afi, name, uj);
11226 } else {
11227 if (uj)
11228 vty_out(vty, "{}\n");
11229 else
11230 vty_out(vty, "No functional output\n");
11231 }
718e3744 11232
d62a17ae 11233 return CMD_SUCCESS;
11234}
11235
11236static int bgp_show_neighbor_route(struct vty *vty, struct peer *peer,
11237 afi_t afi, safi_t safi,
9f049418 11238 enum bgp_show_type type, bool use_json)
d62a17ae 11239{
8a893163
DW		 11240 /* labeled-unicast routes live in the unicast table */
11241 if (safi == SAFI_LABELED_UNICAST)
11242 safi = SAFI_UNICAST;
11243
d62a17ae 11244 if (!peer || !peer->afc[afi][safi]) {
11245 if (use_json) {
11246 json_object *json_no = NULL;
11247 json_no = json_object_new_object();
11248 json_object_string_add(
11249 json_no, "warning",
11250 "No such neighbor or address family");
11251 vty_out(vty, "%s\n",
11252 json_object_to_json_string(json_no));
11253 json_object_free(json_no);
11254 } else
11255 vty_out(vty, "%% No such neighbor or address family\n");
11256 return CMD_WARNING;
11257 }
47fc97cc 11258
d62a17ae 11259 return bgp_show(vty, peer->bgp, afi, safi, type, &peer->su, use_json);
718e3744 11260}
11261
dba3c1d3
PG		 11262DEFUN (show_ip_bgp_flowspec_routes_detailed,
11263 show_ip_bgp_flowspec_routes_detailed_cmd,
11264 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" flowspec] detail [json]",
11265 SHOW_STR
11266 IP_STR
11267 BGP_STR
11268 BGP_INSTANCE_HELP_STR
11269 BGP_AFI_HELP_STR
11270 "SAFI Flowspec\n"
11271 "Detailed information on flowspec entries\n"
11272 JSON_STR)
11273{
11274 afi_t afi = AFI_IP;
11275 safi_t safi = SAFI_UNICAST;
11276 struct bgp *bgp = NULL;
11277 int idx = 0;
9f049418
DS		 11278 bool uj = use_json(argc, argv);
11279
11280 if (uj)
11281 argc--;
dba3c1d3
PG		 11282
11283 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 11284 &bgp, uj);
dba3c1d3
PG		 11285 if (!idx)
11286 return CMD_WARNING;
11287
9f049418 11288 return bgp_show(vty, bgp, afi, safi, bgp_show_type_detail, NULL, uj);
dba3c1d3
PG		 11289}
11290
718e3744 11291DEFUN (show_ip_bgp_neighbor_routes,
11292 show_ip_bgp_neighbor_routes_cmd,
4dd6177e 11293 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] "
30a6a167 11294 "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]",
50ef26d4 11295 SHOW_STR
11296 IP_STR
11297 BGP_STR
8386ac43 11298 BGP_INSTANCE_HELP_STR
4f280b15 11299 BGP_AFI_HELP_STR
4dd6177e 11300 BGP_SAFI_WITH_LABEL_HELP_STR
718e3744 11301 "Detailed information on TCP and BGP neighbor connections\n"
11302 "Neighbor to display information about\n"
11303 "Neighbor to display information about\n"
91d37724 11304 "Neighbor on BGP configured interface\n"
2525cf39 11305 "Display flap statistics of the routes learned from neighbor\n"
8c3deaae
QY		 11306 "Display the dampened routes received from neighbor\n"
11307 "Display routes learned from neighbor\n"
9973d184 11308 JSON_STR)
718e3744 11309{
d62a17ae 11310 char *peerstr = NULL;
11311 struct bgp *bgp = NULL;
11312 afi_t afi = AFI_IP6;
11313 safi_t safi = SAFI_UNICAST;
11314 struct peer *peer;
11315 enum bgp_show_type sh_type = bgp_show_type_neighbor;
d62a17ae 11316 int idx = 0;
9f049418
DS		 11317 bool uj = use_json(argc, argv);
11318
11319 if (uj)
11320 argc--;
bb46e94f 11321
d62a17ae 11322 bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi,
9f049418 11323 &bgp, uj);
d62a17ae 11324 if (!idx)
11325 return CMD_WARNING;
c493f2d8 11326
d62a17ae 11327 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11328 argv_find(argv, argc, "neighbors", &idx);
11329 peerstr = argv[++idx]->arg;
8c3deaae 11330
d62a17ae 11331 peer = peer_lookup_in_view(vty, bgp, peerstr, uj);
9e6e6f46 11332 if (!peer)
d62a17ae 11333 return CMD_WARNING;
bb46e94f 11334
d62a17ae 11335 if (argv_find(argv, argc, "flap-statistics", &idx))
11336 sh_type = bgp_show_type_flap_neighbor;
11337 else if (argv_find(argv, argc, "dampened-routes", &idx))
11338 sh_type = bgp_show_type_damp_neighbor;
11339 else if (argv_find(argv, argc, "routes", &idx))
11340 sh_type = bgp_show_type_neighbor;
2525cf39 11341
d62a17ae 11342 return bgp_show_neighbor_route(vty, peer, afi, safi, sh_type, uj);
50ef26d4 11343}
6b0655a2 11344
734b349e 11345struct bgp_table *bgp_distance_table[AFI_MAX][SAFI_MAX];
718e3744 11346
d62a17ae 11347struct bgp_distance {
11348 /* Distance value for the IP source prefix. */
d7c0a89a 11349 uint8_t distance;
718e3744 11350
d62a17ae 11351 /* Name of the access-list to be matched. */
11352 char *access_list;
718e3744 11353};
11354
4f280b15
LB		 11355DEFUN (show_bgp_afi_vpn_rd_route,
11356 show_bgp_afi_vpn_rd_route_cmd,
d114b977 11357 "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		 11358 SHOW_STR
11359 BGP_STR
11360 BGP_AFI_HELP_STR
11361 "Address Family modifier\n"
11362 "Display information for a route distinguisher\n"
11363 "Route Distinguisher\n"
7395a2c9
DS		 11364 "Network in the BGP routing table to display\n"
11365 "Network in the BGP routing table to display\n"
11366 JSON_STR)
4f280b15 11367{
d62a17ae 11368 int ret;
11369 struct prefix_rd prd;
11370 afi_t afi = AFI_MAX;
11371 int idx = 0;
4f280b15 11372
ff6566f3
DS		 11373 if (!argv_find_and_parse_afi(argv, argc, &idx, &afi)) {
11374 vty_out(vty, "%% Malformed Address Family\n");
11375 return CMD_WARNING;
11376 }
11377
d62a17ae 11378 ret = str2prefix_rd(argv[5]->arg, &prd);
11379 if (!ret) {
11380 vty_out(vty, "%% Malformed Route Distinguisher\n");
11381 return CMD_WARNING;
11382 }
ff6566f3 11383
d62a17ae 11384 return bgp_show_route(vty, NULL, argv[6]->arg, afi, SAFI_MPLS_VPN, &prd,
360660c6 11385 0, BGP_PATH_SHOW_ALL, use_json(argc, argv));
4f280b15
LB		 11386}
11387
d62a17ae 11388static struct bgp_distance *bgp_distance_new(void)
718e3744 11389{
d62a17ae 11390 return XCALLOC(MTYPE_BGP_DISTANCE, sizeof(struct bgp_distance));
718e3744 11391}
11392
d62a17ae 11393static void bgp_distance_free(struct bgp_distance *bdistance)
718e3744 11394{
d62a17ae 11395 XFREE(MTYPE_BGP_DISTANCE, bdistance);
718e3744 11396}
11397
d62a17ae 11398static int bgp_distance_set(struct vty *vty, const char *distance_str,
11399 const char *ip_str, const char *access_list_str)
718e3744 11400{
d62a17ae 11401 int ret;
11402 afi_t afi;
11403 safi_t safi;
11404 struct prefix p;
d7c0a89a 11405 uint8_t distance;
d62a17ae 11406 struct bgp_node *rn;
11407 struct bgp_distance *bdistance;
718e3744 11408
d62a17ae 11409 afi = bgp_node_afi(vty);
11410 safi = bgp_node_safi(vty);
734b349e 11411
d62a17ae 11412 ret = str2prefix(ip_str, &p);
11413 if (ret == 0) {
11414 vty_out(vty, "Malformed prefix\n");
11415 return CMD_WARNING_CONFIG_FAILED;
11416 }
718e3744 11417
d62a17ae 11418 distance = atoi(distance_str);
718e3744 11419
d62a17ae 11420 /* Get BGP distance node. */
11421 rn = bgp_node_get(bgp_distance_table[afi][safi], (struct prefix *)&p);
5b00b40e 11422 bdistance = bgp_node_get_bgp_distance_info(rn);
ca2e160d 11423 if (bdistance)
d62a17ae 11424 bgp_unlock_node(rn);
ca2e160d 11425 else {
d62a17ae 11426 bdistance = bgp_distance_new();
5b00b40e 11427 bgp_node_set_bgp_distance_info(rn, bdistance);
d62a17ae 11428 }
718e3744 11429
d62a17ae 11430 /* Set distance value. */
11431 bdistance->distance = distance;
718e3744 11432
d62a17ae 11433 /* Reset access-list configuration. */
11434 if (bdistance->access_list) {
11435 XFREE(MTYPE_AS_LIST, bdistance->access_list);
11436 bdistance->access_list = NULL;
11437 }
11438 if (access_list_str)
11439 bdistance->access_list =
11440 XSTRDUP(MTYPE_AS_LIST, access_list_str);
718e3744 11441
d62a17ae 11442 return CMD_SUCCESS;
718e3744 11443}
11444
d62a17ae 11445static int bgp_distance_unset(struct vty *vty, const char *distance_str,
11446 const char *ip_str, const char *access_list_str)
718e3744 11447{
d62a17ae 11448 int ret;
11449 afi_t afi;
11450 safi_t safi;
11451 struct prefix p;
11452 int distance;
11453 struct bgp_node *rn;
11454 struct bgp_distance *bdistance;
718e3744 11455
d62a17ae 11456 afi = bgp_node_afi(vty);
11457 safi = bgp_node_safi(vty);
734b349e 11458
d62a17ae 11459 ret = str2prefix(ip_str, &p);
11460 if (ret == 0) {
11461 vty_out(vty, "Malformed prefix\n");
11462 return CMD_WARNING_CONFIG_FAILED;
11463 }
718e3744 11464
d62a17ae 11465 rn = bgp_node_lookup(bgp_distance_table[afi][safi],
11466 (struct prefix *)&p);
11467 if (!rn) {
11468 vty_out(vty, "Can't find specified prefix\n");
11469 return CMD_WARNING_CONFIG_FAILED;
11470 }
718e3744 11471
5b00b40e 11472 bdistance = bgp_node_get_bgp_distance_info(rn);
d62a17ae 11473 distance = atoi(distance_str);
1f9a9fff 11474
d62a17ae 11475 if (bdistance->distance != distance) {
11476 vty_out(vty, "Distance does not match configured\n");
11477 return CMD_WARNING_CONFIG_FAILED;
11478 }
718e3744 11479
0a22ddfb 11480 XFREE(MTYPE_AS_LIST, bdistance->access_list);
d62a17ae 11481 bgp_distance_free(bdistance);
718e3744 11482
6f94b685 11483 bgp_node_set_bgp_path_info(rn, NULL);
d62a17ae 11484 bgp_unlock_node(rn);
11485 bgp_unlock_node(rn);
718e3744 11486
d62a17ae 11487 return CMD_SUCCESS;
718e3744 11488}
11489
718e3744 11490/* Apply BGP information to distance method. */
40381db7 11491uint8_t bgp_distance_apply(struct prefix *p, struct bgp_path_info *pinfo,
4b7e6066 11492 afi_t afi, safi_t safi, struct bgp *bgp)
d62a17ae 11493{
11494 struct bgp_node *rn;
11495 struct prefix q;
11496 struct peer *peer;
11497 struct bgp_distance *bdistance;
11498 struct access_list *alist;
11499 struct bgp_static *bgp_static;
11500
11501 if (!bgp)
11502 return 0;
11503
40381db7 11504 peer = pinfo->peer;
d62a17ae 11505
11506 /* Check source address. */
11507 sockunion2hostprefix(&peer->su, &q);
11508 rn = bgp_node_match(bgp_distance_table[afi][safi], &q);
11509 if (rn) {
5b00b40e 11510 bdistance = bgp_node_get_bgp_distance_info(rn);
d62a17ae 11511 bgp_unlock_node(rn);
11512
11513 if (bdistance->access_list) {
11514 alist = access_list_lookup(afi, bdistance->access_list);
11515 if (alist
11516 && access_list_apply(alist, p) == FILTER_PERMIT)
11517 return bdistance->distance;
11518 } else
11519 return bdistance->distance;
718e3744 11520 }
718e3744 11521
d62a17ae 11522 /* Backdoor check. */
11523 rn = bgp_node_lookup(bgp->route[afi][safi], p);
11524 if (rn) {
5a8ba9fc 11525 bgp_static = bgp_node_get_bgp_static_info(rn);
d62a17ae 11526 bgp_unlock_node(rn);
718e3744 11527
d62a17ae 11528 if (bgp_static->backdoor) {
11529 if (bgp->distance_local[afi][safi])
11530 return bgp->distance_local[afi][safi];
11531 else
11532 return ZEBRA_IBGP_DISTANCE_DEFAULT;
11533 }
718e3744 11534 }
718e3744 11535
d62a17ae 11536 if (peer->sort == BGP_PEER_EBGP) {
11537 if (bgp->distance_ebgp[afi][safi])
11538 return bgp->distance_ebgp[afi][safi];
11539 return ZEBRA_EBGP_DISTANCE_DEFAULT;
11540 } else {
11541 if (bgp->distance_ibgp[afi][safi])
11542 return bgp->distance_ibgp[afi][safi];
11543 return ZEBRA_IBGP_DISTANCE_DEFAULT;
11544 }
718e3744 11545}
11546
11547DEFUN (bgp_distance,
11548 bgp_distance_cmd,
6147e2c6 11549 "distance bgp (1-255) (1-255) (1-255)",
718e3744 11550 "Define an administrative distance\n"
11551 "BGP distance\n"
11552 "Distance for routes external to the AS\n"
11553 "Distance for routes internal to the AS\n"
11554 "Distance for local routes\n")
11555{
d62a17ae 11556 VTY_DECLVAR_CONTEXT(bgp, bgp);
11557 int idx_number = 2;
11558 int idx_number_2 = 3;
11559 int idx_number_3 = 4;
11560 afi_t afi;
11561 safi_t safi;
718e3744 11562
d62a17ae 11563 afi = bgp_node_afi(vty);
11564 safi = bgp_node_safi(vty);
718e3744 11565
d62a17ae 11566 bgp->distance_ebgp[afi][safi] = atoi(argv[idx_number]->arg);
11567 bgp->distance_ibgp[afi][safi] = atoi(argv[idx_number_2]->arg);
11568 bgp->distance_local[afi][safi] = atoi(argv[idx_number_3]->arg);
11569 return CMD_SUCCESS;
718e3744 11570}
11571
11572DEFUN (no_bgp_distance,
11573 no_bgp_distance_cmd,
a636c635 11574 "no distance bgp [(1-255) (1-255) (1-255)]",
718e3744 11575 NO_STR
11576 "Define an administrative distance\n"
11577 "BGP distance\n"
11578 "Distance for routes external to the AS\n"
11579 "Distance for routes internal to the AS\n"
11580 "Distance for local routes\n")
11581{
d62a17ae 11582 VTY_DECLVAR_CONTEXT(bgp, bgp);
11583 afi_t afi;
11584 safi_t safi;
718e3744 11585
d62a17ae 11586 afi = bgp_node_afi(vty);
11587 safi = bgp_node_safi(vty);
718e3744 11588
d62a17ae 11589 bgp->distance_ebgp[afi][safi] = 0;
11590 bgp->distance_ibgp[afi][safi] = 0;
11591 bgp->distance_local[afi][safi] = 0;
11592 return CMD_SUCCESS;
718e3744 11593}
11594
718e3744 11595
11596DEFUN (bgp_distance_source,
11597 bgp_distance_source_cmd,
6147e2c6 11598 "distance (1-255) A.B.C.D/M",
718e3744 11599 "Define an administrative distance\n"
11600 "Administrative distance\n"
11601 "IP source prefix\n")
11602{
d62a17ae 11603 int idx_number = 1;
11604 int idx_ipv4_prefixlen = 2;
11605 bgp_distance_set(vty, argv[idx_number]->arg,
11606 argv[idx_ipv4_prefixlen]->arg, NULL);
11607 return CMD_SUCCESS;
718e3744 11608}
11609
11610DEFUN (no_bgp_distance_source,
11611 no_bgp_distance_source_cmd,
6147e2c6 11612 "no distance (1-255) A.B.C.D/M",
718e3744 11613 NO_STR
11614 "Define an administrative distance\n"
11615 "Administrative distance\n"
11616 "IP source prefix\n")
11617{
d62a17ae 11618 int idx_number = 2;
11619 int idx_ipv4_prefixlen = 3;
11620 bgp_distance_unset(vty, argv[idx_number]->arg,
11621 argv[idx_ipv4_prefixlen]->arg, NULL);
11622 return CMD_SUCCESS;
718e3744 11623}
11624
11625DEFUN (bgp_distance_source_access_list,
11626 bgp_distance_source_access_list_cmd,
6147e2c6 11627 "distance (1-255) A.B.C.D/M WORD",
718e3744 11628 "Define an administrative distance\n"
11629 "Administrative distance\n"
11630 "IP source prefix\n"
11631 "Access list name\n")
11632{
d62a17ae 11633 int idx_number = 1;
11634 int idx_ipv4_prefixlen = 2;
11635 int idx_word = 3;
11636 bgp_distance_set(vty, argv[idx_number]->arg,
11637 argv[idx_ipv4_prefixlen]->arg, argv[idx_word]->arg);
11638 return CMD_SUCCESS;
718e3744 11639}
11640
11641DEFUN (no_bgp_distance_source_access_list,
11642 no_bgp_distance_source_access_list_cmd,
6147e2c6 11643 "no distance (1-255) A.B.C.D/M WORD",
718e3744 11644 NO_STR
11645 "Define an administrative distance\n"
11646 "Administrative distance\n"
11647 "IP source prefix\n"
11648 "Access list name\n")
11649{
d62a17ae 11650 int idx_number = 2;
11651 int idx_ipv4_prefixlen = 3;
11652 int idx_word = 4;
11653 bgp_distance_unset(vty, argv[idx_number]->arg,
11654 argv[idx_ipv4_prefixlen]->arg, argv[idx_word]->arg);
11655 return CMD_SUCCESS;
718e3744 11656}
6b0655a2 11657
734b349e
MZ		 11658DEFUN (ipv6_bgp_distance_source,
11659 ipv6_bgp_distance_source_cmd,
39e92c06 11660 "distance (1-255) X:X::X:X/M",
734b349e
MZ		 11661 "Define an administrative distance\n"
11662 "Administrative distance\n"
11663 "IP source prefix\n")
11664{
d62a17ae 11665 bgp_distance_set(vty, argv[1]->arg, argv[2]->arg, NULL);
11666 return CMD_SUCCESS;
734b349e
MZ		 11667}
11668
11669DEFUN (no_ipv6_bgp_distance_source,
11670 no_ipv6_bgp_distance_source_cmd,
39e92c06 11671 "no distance (1-255) X:X::X:X/M",
734b349e
MZ		 11672 NO_STR
11673 "Define an administrative distance\n"
11674 "Administrative distance\n"
11675 "IP source prefix\n")
11676{
d62a17ae 11677 bgp_distance_unset(vty, argv[2]->arg, argv[3]->arg, NULL);
11678 return CMD_SUCCESS;
734b349e
MZ		 11679}
11680
11681DEFUN (ipv6_bgp_distance_source_access_list,
11682 ipv6_bgp_distance_source_access_list_cmd,
39e92c06 11683 "distance (1-255) X:X::X:X/M WORD",
734b349e
MZ		 11684 "Define an administrative distance\n"
11685 "Administrative distance\n"
11686 "IP source prefix\n"
11687 "Access list name\n")
11688{
d62a17ae 11689 bgp_distance_set(vty, argv[1]->arg, argv[2]->arg, argv[3]->arg);
11690 return CMD_SUCCESS;
734b349e
MZ		 11691}
11692
11693DEFUN (no_ipv6_bgp_distance_source_access_list,
11694 no_ipv6_bgp_distance_source_access_list_cmd,
39e92c06 11695 "no distance (1-255) X:X::X:X/M WORD",
734b349e
MZ		 11696 NO_STR
11697 "Define an administrative distance\n"
11698 "Administrative distance\n"
11699 "IP source prefix\n"
11700 "Access list name\n")
11701{
d62a17ae 11702 bgp_distance_unset(vty, argv[2]->arg, argv[3]->arg, argv[4]->arg);
11703 return CMD_SUCCESS;
734b349e
MZ		 11704}
11705
718e3744 11706DEFUN (bgp_damp_set,
11707 bgp_damp_set_cmd,
31500417 11708 "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
718e3744 11709 "BGP Specific commands\n"
11710 "Enable route-flap dampening\n"
11711 "Half-life time for the penalty\n"
11712 "Value to start reusing a route\n"
11713 "Value to start suppressing a route\n"
11714 "Maximum duration to suppress a stable route\n")
11715{
d62a17ae 11716 VTY_DECLVAR_CONTEXT(bgp, bgp);
11717 int idx_half_life = 2;
11718 int idx_reuse = 3;
11719 int idx_suppress = 4;
11720 int idx_max_suppress = 5;
11721 int half = DEFAULT_HALF_LIFE * 60;
11722 int reuse = DEFAULT_REUSE;
11723 int suppress = DEFAULT_SUPPRESS;
11724 int max = 4 * half;
11725
11726 if (argc == 6) {
11727 half = atoi(argv[idx_half_life]->arg) * 60;
11728 reuse = atoi(argv[idx_reuse]->arg);
11729 suppress = atoi(argv[idx_suppress]->arg);
11730 max = atoi(argv[idx_max_suppress]->arg) * 60;
11731 } else if (argc == 3) {
11732 half = atoi(argv[idx_half_life]->arg) * 60;
11733 max = 4 * half;
11734 }
718e3744 11735
d62a17ae 11736 if (suppress < reuse) {
11737 vty_out(vty,
11738 "Suppress value cannot be less than reuse value \n");
11739 return 0;
11740 }
7ebe9748 11741
d62a17ae 11742 return bgp_damp_enable(bgp, bgp_node_afi(vty), bgp_node_safi(vty), half,
11743 reuse, suppress, max);
718e3744 11744}
11745
718e3744 11746DEFUN (bgp_damp_unset,
11747 bgp_damp_unset_cmd,
d04c479d 11748 "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
718e3744 11749 NO_STR
11750 "BGP Specific commands\n"
16cedbb0
QY		 11751 "Enable route-flap dampening\n"
11752 "Half-life time for the penalty\n"
11753 "Value to start reusing a route\n"
11754 "Value to start suppressing a route\n"
11755 "Maximum duration to suppress a stable route\n")
718e3744 11756{
d62a17ae 11757 VTY_DECLVAR_CONTEXT(bgp, bgp);
11758 return bgp_damp_disable(bgp, bgp_node_afi(vty), bgp_node_safi(vty));
718e3744 11759}
11760
718e3744 11761/* Display specified route of BGP table. */
d62a17ae 11762static int bgp_clear_damp_route(struct vty *vty, const char *view_name,
11763 const char *ip_str, afi_t afi, safi_t safi,
11764 struct prefix_rd *prd, int prefix_check)
11765{
11766 int ret;
11767 struct prefix match;
11768 struct bgp_node *rn;
11769 struct bgp_node *rm;
40381db7
DS		 11770 struct bgp_path_info *pi;
11771 struct bgp_path_info *pi_temp;
d62a17ae 11772 struct bgp *bgp;
11773 struct bgp_table *table;
11774
11775 /* BGP structure lookup. */
11776 if (view_name) {
11777 bgp = bgp_lookup_by_name(view_name);
11778 if (bgp == NULL) {
11779 vty_out(vty, "%% Can't find BGP instance %s\n",
11780 view_name);
11781 return CMD_WARNING;
11782 }
11783 } else {
11784 bgp = bgp_get_default();
11785 if (bgp == NULL) {
11786 vty_out(vty, "%% No BGP process is configured\n");
11787 return CMD_WARNING;
11788 }
718e3744 11789 }
718e3744 11790
d62a17ae 11791 /* Check IP address argument. */
11792 ret = str2prefix(ip_str, &match);
11793 if (!ret) {
11794 vty_out(vty, "%% address is malformed\n");
11795 return CMD_WARNING;
11796 }
718e3744 11797
d62a17ae 11798 match.family = afi2family(afi);
11799
11800 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)
11801 || (safi == SAFI_EVPN)) {
11802 for (rn = bgp_table_top(bgp->rib[AFI_IP][safi]); rn;
11803 rn = bgp_route_next(rn)) {
11804 if (prd && memcmp(rn->p.u.val, prd->val, 8) != 0)
11805 continue;
67009e22
DS		 11806 table = bgp_node_get_bgp_table_info(rn);
11807 if (!table)
ea47320b
DL		 11808 continue;
11809 if ((rm = bgp_node_match(table, &match)) == NULL)
11810 continue;
d62a17ae 11811
ea47320b
DL		 11812 if (!prefix_check
11813 || rm->p.prefixlen == match.prefixlen) {
6f94b685 11814 pi = bgp_node_get_bgp_path_info(rm);
40381db7
DS		 11815 while (pi) {
11816 if (pi->extra && pi->extra->damp_info) {
11817 pi_temp = pi->next;
ea47320b 11818 bgp_damp_info_free(
40381db7 11819 pi->extra->damp_info,
60466a63 11820 1);
40381db7 11821 pi = pi_temp;
ea47320b 11822 } else
40381db7 11823 pi = pi->next;
d62a17ae 11824 }
ea47320b
DL		 11825 }
11826
11827 bgp_unlock_node(rm);
d62a17ae 11828 }
11829 } else {
11830 if ((rn = bgp_node_match(bgp->rib[afi][safi], &match))
11831 != NULL) {
11832 if (!prefix_check
11833 || rn->p.prefixlen == match.prefixlen) {
6f94b685 11834 pi = bgp_node_get_bgp_path_info(rn);
40381db7
DS		 11835 while (pi) {
11836 if (pi->extra && pi->extra->damp_info) {
11837 pi_temp = pi->next;
d62a17ae 11838 bgp_damp_info_free(
40381db7 11839 pi->extra->damp_info,
d62a17ae 11840 1);
40381db7 11841 pi = pi_temp;
d62a17ae 11842 } else
40381db7 11843 pi = pi->next;
d62a17ae 11844 }
11845 }
11846
11847 bgp_unlock_node(rn);
11848 }
11849 }
718e3744 11850
d62a17ae 11851 return CMD_SUCCESS;
718e3744 11852}
11853
11854DEFUN (clear_ip_bgp_dampening,
11855 clear_ip_bgp_dampening_cmd,
11856 "clear ip bgp dampening",
11857 CLEAR_STR
11858 IP_STR
11859 BGP_STR
11860 "Clear route flap dampening information\n")
11861{
d62a17ae 11862 bgp_damp_info_clean();
11863 return CMD_SUCCESS;
718e3744 11864}
11865
11866DEFUN (clear_ip_bgp_dampening_prefix,
11867 clear_ip_bgp_dampening_prefix_cmd,
11868 "clear ip bgp dampening A.B.C.D/M",
11869 CLEAR_STR
11870 IP_STR
11871 BGP_STR
11872 "Clear route flap dampening information\n"
0c7b1b01 11873 "IPv4 prefix\n")
718e3744 11874{
d62a17ae 11875 int idx_ipv4_prefixlen = 4;
11876 return bgp_clear_damp_route(vty, NULL, argv[idx_ipv4_prefixlen]->arg,
11877 AFI_IP, SAFI_UNICAST, NULL, 1);
718e3744 11878}
11879
11880DEFUN (clear_ip_bgp_dampening_address,
11881 clear_ip_bgp_dampening_address_cmd,
11882 "clear ip bgp dampening A.B.C.D",
11883 CLEAR_STR
11884 IP_STR
11885 BGP_STR
11886 "Clear route flap dampening information\n"
11887 "Network to clear damping information\n")
11888{
d62a17ae 11889 int idx_ipv4 = 4;
11890 return bgp_clear_damp_route(vty, NULL, argv[idx_ipv4]->arg, AFI_IP,
11891 SAFI_UNICAST, NULL, 0);
718e3744 11892}
11893
11894DEFUN (clear_ip_bgp_dampening_address_mask,
11895 clear_ip_bgp_dampening_address_mask_cmd,
11896 "clear ip bgp dampening A.B.C.D A.B.C.D",
11897 CLEAR_STR
11898 IP_STR
11899 BGP_STR
11900 "Clear route flap dampening information\n"
11901 "Network to clear damping information\n"
11902 "Network mask\n")
11903{
d62a17ae 11904 int idx_ipv4 = 4;
11905 int idx_ipv4_2 = 5;
11906 int ret;
11907 char prefix_str[BUFSIZ];
718e3744 11908
d62a17ae 11909 ret = netmask_str2prefix_str(argv[idx_ipv4]->arg, argv[idx_ipv4_2]->arg,
11910 prefix_str);
11911 if (!ret) {
11912 vty_out(vty, "%% Inconsistent address and mask\n");
11913 return CMD_WARNING;
11914 }
718e3744 11915
d62a17ae 11916 return bgp_clear_damp_route(vty, NULL, prefix_str, AFI_IP, SAFI_UNICAST,
11917 NULL, 0);
718e3744 11918}
6b0655a2 11919
e3b78da8 11920static void show_bgp_peerhash_entry(struct hash_bucket *bucket, void *arg)
825d9834
DS		 11921{
11922 struct vty *vty = arg;
e3b78da8 11923 struct peer *peer = bucket->data;
825d9834
DS		 11924 char buf[SU_ADDRSTRLEN];
11925
11926 vty_out(vty, "\tPeer: %s %s\n", peer->host,
11927 sockunion2str(&peer->su, buf, sizeof(buf)));
11928}
11929
11930DEFUN (show_bgp_peerhash,
11931 show_bgp_peerhash_cmd,
11932 "show bgp peerhash",
11933 SHOW_STR
11934 BGP_STR
11935 "Display information about the BGP peerhash\n")
11936{
11937 struct list *instances = bm->bgp;
11938 struct listnode *node;
11939 struct bgp *bgp;
11940
11941 for (ALL_LIST_ELEMENTS_RO(instances, node, bgp)) {
11942 vty_out(vty, "BGP: %s\n", bgp->name);
11943 hash_iterate(bgp->peerhash, show_bgp_peerhash_entry,
11944 vty);
11945 }
11946
11947 return CMD_SUCCESS;
11948}
11949
587ff0fd 11950/* also used for encap safi */
2b791107
DL		 11951static void bgp_config_write_network_vpn(struct vty *vty, struct bgp *bgp,
11952 afi_t afi, safi_t safi)
d62a17ae 11953{
11954 struct bgp_node *prn;
11955 struct bgp_node *rn;
11956 struct bgp_table *table;
11957 struct prefix *p;
11958 struct prefix_rd *prd;
11959 struct bgp_static *bgp_static;
11960 mpls_label_t label;
11961 char buf[SU_ADDRSTRLEN];
11962 char rdbuf[RD_ADDRSTRLEN];
11963
11964 /* Network configuration. */
11965 for (prn = bgp_table_top(bgp->route[afi][safi]); prn;
ea47320b 11966 prn = bgp_route_next(prn)) {
67009e22
DS		 11967 table = bgp_node_get_bgp_table_info(prn);
11968 if (!table)
ea47320b 11969 continue;
d62a17ae 11970
60466a63 11971 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
5a8ba9fc 11972 bgp_static = bgp_node_get_bgp_static_info(rn);
a78beeb5 11973 if (bgp_static == NULL)
ea47320b 11974 continue;
d62a17ae 11975
ea47320b
DL		 11976 p = &rn->p;
11977 prd = (struct prefix_rd *)&prn->p;
d62a17ae 11978
ea47320b 11979 /* "network" configuration display. */
06b9f471 11980 prefix_rd2str(prd, rdbuf, sizeof(rdbuf));
ea47320b
DL		 11981 label = decode_label(&bgp_static->label);
11982
11983 vty_out(vty, " network %s/%d rd %s",
11984 inet_ntop(p->family, &p->u.prefix, buf,
11985 SU_ADDRSTRLEN),
11986 p->prefixlen, rdbuf);
11987 if (safi == SAFI_MPLS_VPN)
11988 vty_out(vty, " label %u", label);
11989
11990 if (bgp_static->rmap.name)
11991 vty_out(vty, " route-map %s",
11992 bgp_static->rmap.name);
e2a86ad9
DS		 11993
11994 if (bgp_static->backdoor)
11995 vty_out(vty, " backdoor");
11996
ea47320b
DL		 11997 vty_out(vty, "\n");
11998 }
11999 }
d62a17ae 12000}
12001
2b791107
DL		 12002static void bgp_config_write_network_evpn(struct vty *vty, struct bgp *bgp,
12003 afi_t afi, safi_t safi)
d62a17ae 12004{
12005 struct bgp_node *prn;
12006 struct bgp_node *rn;
12007 struct bgp_table *table;
12008 struct prefix *p;
12009 struct prefix_rd *prd;
12010 struct bgp_static *bgp_static;
ff44f570 12011 char buf[PREFIX_STRLEN * 2];
d62a17ae 12012 char buf2[SU_ADDRSTRLEN];
12013 char rdbuf[RD_ADDRSTRLEN];
12014
12015 /* Network configuration. */
12016 for (prn = bgp_table_top(bgp->route[afi][safi]); prn;
ea47320b 12017 prn = bgp_route_next(prn)) {
67009e22
DS		 12018 table = bgp_node_get_bgp_table_info(prn);
12019 if (!table)
ea47320b 12020 continue;
d62a17ae 12021
60466a63 12022 for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
5a8ba9fc 12023 bgp_static = bgp_node_get_bgp_static_info(rn);
a78beeb5 12024 if (bgp_static == NULL)
ea47320b 12025 continue;
d62a17ae 12026
ea47320b
DL		 12027 char *macrouter = NULL;
12028 char *esi = NULL;
d62a17ae 12029
ea47320b
DL		 12030 if (bgp_static->router_mac)
12031 macrouter = prefix_mac2str(
12032 bgp_static->router_mac, NULL, 0);
12033 if (bgp_static->eth_s_id)
12034 esi = esi2str(bgp_static->eth_s_id);
12035 p = &rn->p;
12036 prd = (struct prefix_rd *)&prn->p;
d62a17ae 12037
ea47320b 12038 /* "network" configuration display. */
06b9f471 12039 prefix_rd2str(prd, rdbuf, sizeof(rdbuf));
197cb530
PG		 12040 if (p->u.prefix_evpn.route_type == 5) {
12041 char local_buf[PREFIX_STRLEN];
3714a385 12042 uint8_t family = is_evpn_prefix_ipaddr_v4((
a4d82a8a
PZ		 12043 struct prefix_evpn *)p)
12044 ? AF_INET
12045 : AF_INET6;
3714a385 12046 inet_ntop(family,
12047 &p->u.prefix_evpn.prefix_addr.ip.ip.addr,
a4d82a8a
PZ		 12048 local_buf, PREFIX_STRLEN);
12049 sprintf(buf, "%s/%u", local_buf,
3714a385 12050 p->u.prefix_evpn.prefix_addr.ip_prefix_length);
197cb530
PG		 12051 } else {
12052 prefix2str(p, buf, sizeof(buf));
12053 }
ea47320b 12054
a4d82a8a
PZ		 12055 if (bgp_static->gatewayIp.family == AF_INET
12056 || bgp_static->gatewayIp.family == AF_INET6)
197cb530
PG		 12057 inet_ntop(bgp_static->gatewayIp.family,
12058 &bgp_static->gatewayIp.u.prefix, buf2,
12059 sizeof(buf2));
ea47320b 12060 vty_out(vty,
7bcc8dac 12061 " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n",
3714a385 12062 buf, rdbuf,
12063 p->u.prefix_evpn.prefix_addr.eth_tag,
60466a63 12064 decode_label(&bgp_static->label), esi, buf2,
ea47320b
DL		 12065 macrouter);
12066
0a22ddfb
QY		 12067 XFREE(MTYPE_TMP, macrouter);
12068 XFREE(MTYPE_TMP, esi);
ea47320b
DL		 12069 }
12070 }
3da6fcd5
PG		 12071}
12072
718e3744 12073/* Configuration of static route announcement and aggregate
12074 information. */
2b791107
DL		 12075void bgp_config_write_network(struct vty *vty, struct bgp *bgp, afi_t afi,
12076 safi_t safi)
d62a17ae 12077{
12078 struct bgp_node *rn;
12079 struct prefix *p;
12080 struct bgp_static *bgp_static;
12081 struct bgp_aggregate *bgp_aggregate;
12082 char buf[SU_ADDRSTRLEN];
12083
2b791107
DL		 12084 if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)) {
12085 bgp_config_write_network_vpn(vty, bgp, afi, safi);
12086 return;
12087 }
d62a17ae 12088
2b791107
DL		 12089 if (afi == AFI_L2VPN && safi == SAFI_EVPN) {
12090 bgp_config_write_network_evpn(vty, bgp, afi, safi);
12091 return;
12092 }
d62a17ae 12093
12094 /* Network configuration. */
12095 for (rn = bgp_table_top(bgp->route[afi][safi]); rn;
ea47320b 12096 rn = bgp_route_next(rn)) {
5a8ba9fc 12097 bgp_static = bgp_node_get_bgp_static_info(rn);
a78beeb5 12098 if (bgp_static == NULL)
ea47320b 12099 continue;
d62a17ae 12100
ea47320b 12101 p = &rn->p;
d62a17ae 12102
ea47320b 12103 /* "network" configuration display. */
60466a63 12104 if (bgp_option_check(BGP_OPT_CONFIG_CISCO) && afi == AFI_IP) {
d7c0a89a 12105 uint32_t destination;
ea47320b 12106 struct in_addr netmask;
d62a17ae 12107
ea47320b
DL		 12108 destination = ntohl(p->u.prefix4.s_addr);
12109 masklen2ip(p->prefixlen, &netmask);
12110 vty_out(vty, " network %s",
12111 inet_ntop(p->family, &p->u.prefix, buf,
12112 SU_ADDRSTRLEN));
d62a17ae 12113
ea47320b
DL		 12114 if ((IN_CLASSC(destination) && p->prefixlen == 24)
12115 || (IN_CLASSB(destination) && p->prefixlen == 16)
12116 || (IN_CLASSA(destination) && p->prefixlen == 8)
12117 || p->u.prefix4.s_addr == 0) {
12118 /* Natural mask is not display. */
12119 } else
12120 vty_out(vty, " mask %s", inet_ntoa(netmask));
12121 } else {
12122 vty_out(vty, " network %s/%d",
12123 inet_ntop(p->family, &p->u.prefix, buf,
12124 SU_ADDRSTRLEN),
12125 p->prefixlen);
12126 }
d62a17ae 12127
ea47320b
DL		 12128 if (bgp_static->label_index != BGP_INVALID_LABEL_INDEX)
12129 vty_out(vty, " label-index %u",
12130 bgp_static->label_index);
d62a17ae 12131
ea47320b
DL		 12132 if (bgp_static->rmap.name)
12133 vty_out(vty, " route-map %s", bgp_static->rmap.name);
e2a86ad9
DS		 12134
12135 if (bgp_static->backdoor)
12136 vty_out(vty, " backdoor");
718e3744 12137
ea47320b
DL		 12138 vty_out(vty, "\n");
12139 }
12140
d62a17ae 12141 /* Aggregate-address configuration. */
12142 for (rn = bgp_table_top(bgp->aggregate[afi][safi]); rn;
ea47320b 12143 rn = bgp_route_next(rn)) {
b613a918 12144 bgp_aggregate = bgp_node_get_bgp_aggregate_info(rn);
b1e62edd 12145 if (bgp_aggregate == NULL)
ea47320b 12146 continue;
d62a17ae 12147
ea47320b 12148 p = &rn->p;
d62a17ae 12149
ea47320b
DL		 12150 if (bgp_option_check(BGP_OPT_CONFIG_CISCO) && afi == AFI_IP) {
12151 struct in_addr netmask;
d62a17ae 12152
ea47320b
DL		 12153 masklen2ip(p->prefixlen, &netmask);
12154 vty_out(vty, " aggregate-address %s %s",
12155 inet_ntop(p->family, &p->u.prefix, buf,
12156 SU_ADDRSTRLEN),
12157 inet_ntoa(netmask));
12158 } else {
12159 vty_out(vty, " aggregate-address %s/%d",
12160 inet_ntop(p->family, &p->u.prefix, buf,
12161 SU_ADDRSTRLEN),
12162 p->prefixlen);
12163 }
d62a17ae 12164
ea47320b
DL		 12165 if (bgp_aggregate->as_set)
12166 vty_out(vty, " as-set");
d62a17ae 12167
ea47320b
DL		 12168 if (bgp_aggregate->summary_only)
12169 vty_out(vty, " summary-only");
718e3744 12170
ea47320b
DL		 12171 vty_out(vty, "\n");
12172 }
d62a17ae 12173}
734b349e 12174
2b791107 12175void bgp_config_write_distance(struct vty *vty, struct bgp *bgp, afi_t afi,
60466a63 12176 safi_t safi)
d62a17ae 12177{
12178 struct bgp_node *rn;
12179 struct bgp_distance *bdistance;
12180
12181 /* Distance configuration. */
12182 if (bgp->distance_ebgp[afi][safi] && bgp->distance_ibgp[afi][safi]
12183 && bgp->distance_local[afi][safi]
12184 && (bgp->distance_ebgp[afi][safi] != ZEBRA_EBGP_DISTANCE_DEFAULT
12185 || bgp->distance_ibgp[afi][safi] != ZEBRA_IBGP_DISTANCE_DEFAULT
12186 || bgp->distance_local[afi][safi]
12187 != ZEBRA_IBGP_DISTANCE_DEFAULT)) {
d62a17ae 12188 vty_out(vty, " distance bgp %d %d %d\n",
12189 bgp->distance_ebgp[afi][safi],
12190 bgp->distance_ibgp[afi][safi],
12191 bgp->distance_local[afi][safi]);
12192 }
734b349e 12193
d62a17ae 12194 for (rn = bgp_table_top(bgp_distance_table[afi][safi]); rn;
ca2e160d 12195 rn = bgp_route_next(rn)) {
5b00b40e 12196 bdistance = bgp_node_get_bgp_distance_info(rn);
ca2e160d 12197 if (bdistance != NULL) {
d62a17ae 12198 char buf[PREFIX_STRLEN];
12199
d62a17ae 12200 vty_out(vty, " distance %d %s %s\n",
12201 bdistance->distance,
12202 prefix2str(&rn->p, buf, sizeof(buf)),
12203 bdistance->access_list ? bdistance->access_list
12204 : "");
12205 }
ca2e160d 12206 }
718e3744 12207}
12208
12209/* Allocate routing table structure and install commands. */
d62a17ae 12210void bgp_route_init(void)
12211{
12212 afi_t afi;
12213 safi_t safi;
12214
12215 /* Init BGP distance table. */
05c7a1cc 12216 FOREACH_AFI_SAFI (afi, safi)
960035b2 12217 bgp_distance_table[afi][safi] = bgp_table_init(NULL, afi, safi);
d62a17ae 12218
12219 /* IPv4 BGP commands. */
12220 install_element(BGP_NODE, &bgp_table_map_cmd);
12221 install_element(BGP_NODE, &bgp_network_cmd);
d62a17ae 12222 install_element(BGP_NODE, &no_bgp_table_map_cmd);
d62a17ae 12223
12224 install_element(BGP_NODE, &aggregate_address_cmd);
12225 install_element(BGP_NODE, &aggregate_address_mask_cmd);
12226 install_element(BGP_NODE, &no_aggregate_address_cmd);
12227 install_element(BGP_NODE, &no_aggregate_address_mask_cmd);
12228
12229 /* IPv4 unicast configuration. */
12230 install_element(BGP_IPV4_NODE, &bgp_table_map_cmd);
12231 install_element(BGP_IPV4_NODE, &bgp_network_cmd);
d62a17ae 12232 install_element(BGP_IPV4_NODE, &no_bgp_table_map_cmd);
d62a17ae 12233
12234 install_element(BGP_IPV4_NODE, &aggregate_address_cmd);
12235 install_element(BGP_IPV4_NODE, &aggregate_address_mask_cmd);
12236 install_element(BGP_IPV4_NODE, &no_aggregate_address_cmd);
12237 install_element(BGP_IPV4_NODE, &no_aggregate_address_mask_cmd);
12238
12239 /* IPv4 multicast configuration. */
12240 install_element(BGP_IPV4M_NODE, &bgp_table_map_cmd);
12241 install_element(BGP_IPV4M_NODE, &bgp_network_cmd);
d62a17ae 12242 install_element(BGP_IPV4M_NODE, &no_bgp_table_map_cmd);
d62a17ae 12243 install_element(BGP_IPV4M_NODE, &aggregate_address_cmd);
12244 install_element(BGP_IPV4M_NODE, &aggregate_address_mask_cmd);
12245 install_element(BGP_IPV4M_NODE, &no_aggregate_address_cmd);
12246 install_element(BGP_IPV4M_NODE, &no_aggregate_address_mask_cmd);
12247
12248 /* IPv4 labeled-unicast configuration. */
12249 install_element(VIEW_NODE, &show_ip_bgp_instance_all_cmd);
12250 install_element(VIEW_NODE, &show_ip_bgp_cmd);
7b2ff250 12251 install_element(VIEW_NODE, &show_ip_bgp_json_cmd);
d62a17ae 12252 install_element(VIEW_NODE, &show_ip_bgp_route_cmd);
12253 install_element(VIEW_NODE, &show_ip_bgp_regexp_cmd);
12254
12255 install_element(VIEW_NODE,
12256 &show_ip_bgp_instance_neighbor_advertised_route_cmd);
12257 install_element(VIEW_NODE, &show_ip_bgp_neighbor_routes_cmd);
12258 install_element(VIEW_NODE,
12259 &show_ip_bgp_neighbor_received_prefix_filter_cmd);
d6902373 12260#ifdef KEEP_OLD_VPN_COMMANDS
d62a17ae 12261 install_element(VIEW_NODE, &show_ip_bgp_vpn_all_route_prefix_cmd);
d6902373 12262#endif /* KEEP_OLD_VPN_COMMANDS */
d62a17ae 12263 install_element(VIEW_NODE, &show_bgp_afi_vpn_rd_route_cmd);
12264 install_element(VIEW_NODE,
12265 &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd);
57d187bc 12266
d62a17ae 12267 /* BGP dampening clear commands */
12268 install_element(ENABLE_NODE, &clear_ip_bgp_dampening_cmd);
12269 install_element(ENABLE_NODE, &clear_ip_bgp_dampening_prefix_cmd);
718e3744 12270
d62a17ae 12271 install_element(ENABLE_NODE, &clear_ip_bgp_dampening_address_cmd);
12272 install_element(ENABLE_NODE, &clear_ip_bgp_dampening_address_mask_cmd);
12273
12274 /* prefix count */
12275 install_element(ENABLE_NODE,
12276 &show_ip_bgp_instance_neighbor_prefix_counts_cmd);
d6902373 12277#ifdef KEEP_OLD_VPN_COMMANDS
d62a17ae 12278 install_element(ENABLE_NODE,
12279 &show_ip_bgp_vpn_neighbor_prefix_counts_cmd);
d6902373 12280#endif /* KEEP_OLD_VPN_COMMANDS */
ff7924f6 12281
d62a17ae 12282 /* New config IPv6 BGP commands. */
12283 install_element(BGP_IPV6_NODE, &bgp_table_map_cmd);
12284 install_element(BGP_IPV6_NODE, &ipv6_bgp_network_cmd);
d62a17ae 12285 install_element(BGP_IPV6_NODE, &no_bgp_table_map_cmd);
d62a17ae 12286
12287 install_element(BGP_IPV6_NODE, &ipv6_aggregate_address_cmd);
12288 install_element(BGP_IPV6_NODE, &no_ipv6_aggregate_address_cmd);
12289
12290 install_element(BGP_IPV6M_NODE, &ipv6_bgp_network_cmd);
d62a17ae 12291
d62a17ae 12292 install_element(BGP_NODE, &bgp_distance_cmd);
12293 install_element(BGP_NODE, &no_bgp_distance_cmd);
12294 install_element(BGP_NODE, &bgp_distance_source_cmd);
12295 install_element(BGP_NODE, &no_bgp_distance_source_cmd);
12296 install_element(BGP_NODE, &bgp_distance_source_access_list_cmd);
12297 install_element(BGP_NODE, &no_bgp_distance_source_access_list_cmd);
12298 install_element(BGP_IPV4_NODE, &bgp_distance_cmd);
12299 install_element(BGP_IPV4_NODE, &no_bgp_distance_cmd);
12300 install_element(BGP_IPV4_NODE, &bgp_distance_source_cmd);
12301 install_element(BGP_IPV4_NODE, &no_bgp_distance_source_cmd);
12302 install_element(BGP_IPV4_NODE, &bgp_distance_source_access_list_cmd);
12303 install_element(BGP_IPV4_NODE, &no_bgp_distance_source_access_list_cmd);
12304 install_element(BGP_IPV4M_NODE, &bgp_distance_cmd);
12305 install_element(BGP_IPV4M_NODE, &no_bgp_distance_cmd);
12306 install_element(BGP_IPV4M_NODE, &bgp_distance_source_cmd);
12307 install_element(BGP_IPV4M_NODE, &no_bgp_distance_source_cmd);
12308 install_element(BGP_IPV4M_NODE, &bgp_distance_source_access_list_cmd);
12309 install_element(BGP_IPV4M_NODE,
12310 &no_bgp_distance_source_access_list_cmd);
12311 install_element(BGP_IPV6_NODE, &bgp_distance_cmd);
12312 install_element(BGP_IPV6_NODE, &no_bgp_distance_cmd);
12313 install_element(BGP_IPV6_NODE, &ipv6_bgp_distance_source_cmd);
12314 install_element(BGP_IPV6_NODE, &no_ipv6_bgp_distance_source_cmd);
12315 install_element(BGP_IPV6_NODE,
12316 &ipv6_bgp_distance_source_access_list_cmd);
12317 install_element(BGP_IPV6_NODE,
12318 &no_ipv6_bgp_distance_source_access_list_cmd);
12319 install_element(BGP_IPV6M_NODE, &bgp_distance_cmd);
12320 install_element(BGP_IPV6M_NODE, &no_bgp_distance_cmd);
12321 install_element(BGP_IPV6M_NODE, &ipv6_bgp_distance_source_cmd);
12322 install_element(BGP_IPV6M_NODE, &no_ipv6_bgp_distance_source_cmd);
12323 install_element(BGP_IPV6M_NODE,
12324 &ipv6_bgp_distance_source_access_list_cmd);
12325 install_element(BGP_IPV6M_NODE,
12326 &no_ipv6_bgp_distance_source_access_list_cmd);
12327
12328 install_element(BGP_NODE, &bgp_damp_set_cmd);
12329 install_element(BGP_NODE, &bgp_damp_unset_cmd);
12330 install_element(BGP_IPV4_NODE, &bgp_damp_set_cmd);
12331 install_element(BGP_IPV4_NODE, &bgp_damp_unset_cmd);
12332
12333 /* IPv4 Multicast Mode */
12334 install_element(BGP_IPV4M_NODE, &bgp_damp_set_cmd);
12335 install_element(BGP_IPV4M_NODE, &bgp_damp_unset_cmd);
12336
12337 /* Large Communities */
12338 install_element(VIEW_NODE, &show_ip_bgp_large_community_list_cmd);
12339 install_element(VIEW_NODE, &show_ip_bgp_large_community_cmd);
dba3c1d3
PG		 12340
12341 /* show bgp ipv4 flowspec detailed */
12342 install_element(VIEW_NODE, &show_ip_bgp_flowspec_routes_detailed_cmd);
12343
825d9834 12344 install_element(VIEW_NODE, &show_bgp_peerhash_cmd);
d62a17ae 12345}
12346
12347void bgp_route_finish(void)
12348{
12349 afi_t afi;
12350 safi_t safi;
12351
05c7a1cc
QY		 12352 FOREACH_AFI_SAFI (afi, safi) {
12353 bgp_table_unlock(bgp_distance_table[afi][safi]);
12354 bgp_distance_table[afi][safi] = NULL;
12355 }
228da428 12356}
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