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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 | |
2618a52e | 25 | #include "printfrr.h" |
718e3744 | 26 | #include "prefix.h" |
27 | #include "linklist.h" | |
28 | #include "memory.h" | |
29 | #include "command.h" | |
30 | #include "stream.h" | |
31 | #include "filter.h" | |
718e3744 | 32 | #include "log.h" |
33 | #include "routemap.h" | |
34 | #include "buffer.h" | |
35 | #include "sockunion.h" | |
36 | #include "plist.h" | |
37 | #include "thread.h" | |
200df115 | 38 | #include "workqueue.h" |
3f9c7369 | 39 | #include "queue.h" |
6e919709 | 40 | #include "memory.h" |
4dcadbef | 41 | #include "lib/json.h" |
d8d084d9 | 42 | #include "lib_errors.h" |
718e3744 | 43 | |
44 | #include "bgpd/bgpd.h" | |
45 | #include "bgpd/bgp_table.h" | |
46 | #include "bgpd/bgp_route.h" | |
47 | #include "bgpd/bgp_attr.h" | |
48 | #include "bgpd/bgp_debug.h" | |
14454c9f | 49 | #include "bgpd/bgp_errors.h" |
718e3744 | 50 | #include "bgpd/bgp_aspath.h" |
51 | #include "bgpd/bgp_regex.h" | |
52 | #include "bgpd/bgp_community.h" | |
53 | #include "bgpd/bgp_ecommunity.h" | |
57d187bc | 54 | #include "bgpd/bgp_lcommunity.h" |
718e3744 | 55 | #include "bgpd/bgp_clist.h" |
56 | #include "bgpd/bgp_packet.h" | |
57 | #include "bgpd/bgp_filter.h" | |
58 | #include "bgpd/bgp_fsm.h" | |
59 | #include "bgpd/bgp_mplsvpn.h" | |
60 | #include "bgpd/bgp_nexthop.h" | |
61 | #include "bgpd/bgp_damp.h" | |
62 | #include "bgpd/bgp_advertise.h" | |
63 | #include "bgpd/bgp_zebra.h" | |
0a486e5f | 64 | #include "bgpd/bgp_vty.h" |
96450faf | 65 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 66 | #include "bgpd/bgp_nht.h" |
3f9c7369 | 67 | #include "bgpd/bgp_updgrp.h" |
cd1964ff | 68 | #include "bgpd/bgp_label.h" |
dcc68b5e | 69 | #include "bgpd/bgp_addpath.h" |
4e802e66 | 70 | #include "bgpd/bgp_mac.h" |
718e3744 | 71 | |
65efcfce | 72 | #if ENABLE_BGP_VNC |
f8b6f499 LB |
73 | #include "bgpd/rfapi/rfapi_backend.h" |
74 | #include "bgpd/rfapi/vnc_import_bgp.h" | |
75 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 76 | #endif |
aee875b5 PG |
77 | #include "bgpd/bgp_encap_types.h" |
78 | #include "bgpd/bgp_encap_tlv.h" | |
684a7227 | 79 | #include "bgpd/bgp_evpn.h" |
3da6fcd5 | 80 | #include "bgpd/bgp_evpn_vty.h" |
dba3c1d3 | 81 | #include "bgpd/bgp_flowspec.h" |
98a9dbc7 | 82 | #include "bgpd/bgp_flowspec_util.h" |
45918cfb | 83 | #include "bgpd/bgp_pbr.h" |
65efcfce | 84 | |
e2a86ad9 DS |
85 | #ifndef VTYSH_EXTRACT_PL |
86 | #include "bgpd/bgp_route_clippy.c" | |
87 | #endif | |
aee875b5 | 88 | |
718e3744 | 89 | /* Extern from bgp_dump.c */ |
dde72586 SH |
90 | extern const char *bgp_origin_str[]; |
91 | extern const char *bgp_origin_long_str[]; | |
6b0655a2 | 92 | |
b7d08f5a | 93 | /* PMSI strings. */ |
94 | #define PMSI_TNLTYPE_STR_NO_INFO "No info" | |
95 | #define PMSI_TNLTYPE_STR_DEFAULT PMSI_TNLTYPE_STR_NO_INFO | |
96 | static const struct message bgp_pmsi_tnltype_str[] = { | |
97 | {PMSI_TNLTYPE_NO_INFO, PMSI_TNLTYPE_STR_NO_INFO}, | |
98 | {PMSI_TNLTYPE_RSVP_TE_P2MP, "RSVP-TE P2MP"}, | |
99 | {PMSI_TNLTYPE_MLDP_P2MP, "mLDP P2MP"}, | |
100 | {PMSI_TNLTYPE_PIM_SSM, "PIM-SSM"}, | |
101 | {PMSI_TNLTYPE_PIM_SM, "PIM-SM"}, | |
102 | {PMSI_TNLTYPE_PIM_BIDIR, "PIM-BIDIR"}, | |
103 | {PMSI_TNLTYPE_INGR_REPL, "Ingress Replication"}, | |
104 | {PMSI_TNLTYPE_MLDP_MP2MP, "mLDP MP2MP"}, | |
88fbc36f | 105 | {0} |
106 | }; | |
b7d08f5a | 107 | |
9df8b37c PZ |
108 | #define VRFID_NONE_STR "-" |
109 | ||
4a11bf2c DL |
110 | DEFINE_HOOK(bgp_process, |
111 | (struct bgp *bgp, afi_t afi, safi_t safi, | |
112 | struct bgp_node *bn, struct peer *peer, bool withdraw), | |
113 | (bgp, afi, safi, bn, peer, withdraw)) | |
114 | ||
115 | ||
d62a17ae | 116 | struct bgp_node *bgp_afi_node_get(struct bgp_table *table, afi_t afi, |
117 | safi_t safi, struct prefix *p, | |
118 | struct prefix_rd *prd) | |
119 | { | |
120 | struct bgp_node *rn; | |
121 | struct bgp_node *prn = NULL; | |
122 | ||
123 | assert(table); | |
124 | if (!table) | |
125 | return NULL; | |
126 | ||
127 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP) | |
128 | || (safi == SAFI_EVPN)) { | |
129 | prn = bgp_node_get(table, (struct prefix *)prd); | |
130 | ||
67009e22 DS |
131 | if (!bgp_node_has_bgp_path_info_data(prn)) |
132 | bgp_node_set_bgp_table_info( | |
133 | prn, bgp_table_init(table->bgp, afi, safi)); | |
d62a17ae | 134 | else |
135 | bgp_unlock_node(prn); | |
67009e22 | 136 | table = bgp_node_get_bgp_table_info(prn); |
d62a17ae | 137 | } |
718e3744 | 138 | |
d62a17ae | 139 | rn = bgp_node_get(table, p); |
718e3744 | 140 | |
d62a17ae | 141 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP) |
142 | || (safi == SAFI_EVPN)) | |
143 | rn->prn = prn; | |
718e3744 | 144 | |
d62a17ae | 145 | return rn; |
718e3744 | 146 | } |
6b0655a2 | 147 | |
d62a17ae | 148 | struct bgp_node *bgp_afi_node_lookup(struct bgp_table *table, afi_t afi, |
149 | safi_t safi, struct prefix *p, | |
150 | struct prefix_rd *prd) | |
128ea8ab | 151 | { |
d62a17ae | 152 | struct bgp_node *rn; |
153 | struct bgp_node *prn = NULL; | |
128ea8ab | 154 | |
d62a17ae | 155 | if (!table) |
156 | return NULL; | |
128ea8ab | 157 | |
d62a17ae | 158 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP) |
159 | || (safi == SAFI_EVPN)) { | |
160 | prn = bgp_node_lookup(table, (struct prefix *)prd); | |
161 | if (!prn) | |
162 | return NULL; | |
128ea8ab | 163 | |
6f94b685 | 164 | if (!bgp_node_has_bgp_path_info_data(prn)) { |
d62a17ae | 165 | bgp_unlock_node(prn); |
166 | return NULL; | |
167 | } | |
128ea8ab | 168 | |
67009e22 | 169 | table = bgp_node_get_bgp_table_info(prn); |
d62a17ae | 170 | } |
128ea8ab | 171 | |
d62a17ae | 172 | rn = bgp_node_lookup(table, p); |
128ea8ab | 173 | |
d62a17ae | 174 | return rn; |
128ea8ab | 175 | } |
176 | ||
18ee8310 DS |
177 | /* Allocate bgp_path_info_extra */ |
178 | static struct bgp_path_info_extra *bgp_path_info_extra_new(void) | |
fb982c25 | 179 | { |
4b7e6066 DS |
180 | struct bgp_path_info_extra *new; |
181 | new = XCALLOC(MTYPE_BGP_ROUTE_EXTRA, | |
182 | sizeof(struct bgp_path_info_extra)); | |
b57ba6d2 MK |
183 | new->label[0] = MPLS_INVALID_LABEL; |
184 | new->num_labels = 0; | |
3e3708cb PG |
185 | new->bgp_fs_pbr = NULL; |
186 | new->bgp_fs_iprule = NULL; | |
d62a17ae | 187 | return new; |
fb982c25 PJ |
188 | } |
189 | ||
a2e219fe | 190 | void bgp_path_info_extra_free(struct bgp_path_info_extra **extra) |
fb982c25 | 191 | { |
4b7e6066 | 192 | struct bgp_path_info_extra *e; |
d62a17ae | 193 | |
c93a3b77 DS |
194 | if (!extra || !*extra) |
195 | return; | |
d62a17ae | 196 | |
c93a3b77 DS |
197 | e = *extra; |
198 | if (e->damp_info) | |
199 | bgp_damp_info_free(e->damp_info, 0); | |
d62a17ae | 200 | |
c93a3b77 DS |
201 | e->damp_info = NULL; |
202 | if (e->parent) { | |
40381db7 | 203 | struct bgp_path_info *bpi = (struct bgp_path_info *)e->parent; |
c93a3b77 | 204 | |
40381db7 | 205 | if (bpi->net) { |
0e70e6c8 DL |
206 | /* FIXME: since multiple e may have the same e->parent |
207 | * and e->parent->net is holding a refcount for each | |
208 | * of them, we need to do some fudging here. | |
209 | * | |
40381db7 DS |
210 | * WARNING: if bpi->net->lock drops to 0, bpi may be |
211 | * freed as well (because bpi->net was holding the | |
212 | * last reference to bpi) => write after free! | |
0e70e6c8 DL |
213 | */ |
214 | unsigned refcount; | |
215 | ||
40381db7 DS |
216 | bpi = bgp_path_info_lock(bpi); |
217 | refcount = bpi->net->lock - 1; | |
218 | bgp_unlock_node((struct bgp_node *)bpi->net); | |
0e70e6c8 | 219 | if (!refcount) |
40381db7 DS |
220 | bpi->net = NULL; |
221 | bgp_path_info_unlock(bpi); | |
0e70e6c8 | 222 | } |
18ee8310 | 223 | bgp_path_info_unlock(e->parent); |
c93a3b77 | 224 | e->parent = NULL; |
d62a17ae | 225 | } |
c93a3b77 DS |
226 | |
227 | if (e->bgp_orig) | |
228 | bgp_unlock(e->bgp_orig); | |
c26edcda | 229 | |
ce3c0614 PG |
230 | if ((*extra)->bgp_fs_iprule) |
231 | list_delete(&((*extra)->bgp_fs_iprule)); | |
c26edcda | 232 | if ((*extra)->bgp_fs_pbr) |
6a154c88 | 233 | list_delete(&((*extra)->bgp_fs_pbr)); |
c93a3b77 DS |
234 | XFREE(MTYPE_BGP_ROUTE_EXTRA, *extra); |
235 | ||
236 | *extra = NULL; | |
fb982c25 PJ |
237 | } |
238 | ||
18ee8310 DS |
239 | /* Get bgp_path_info extra information for the given bgp_path_info, lazy |
240 | * allocated if required. | |
fb982c25 | 241 | */ |
40381db7 | 242 | struct bgp_path_info_extra *bgp_path_info_extra_get(struct bgp_path_info *pi) |
fb982c25 | 243 | { |
40381db7 DS |
244 | if (!pi->extra) |
245 | pi->extra = bgp_path_info_extra_new(); | |
246 | return pi->extra; | |
fb982c25 PJ |
247 | } |
248 | ||
718e3744 | 249 | /* Free bgp route information. */ |
9b6d8fcf | 250 | static void bgp_path_info_free(struct bgp_path_info *path) |
718e3744 | 251 | { |
9b6d8fcf DS |
252 | if (path->attr) |
253 | bgp_attr_unintern(&path->attr); | |
fb018d25 | 254 | |
9b6d8fcf DS |
255 | bgp_unlink_nexthop(path); |
256 | bgp_path_info_extra_free(&path->extra); | |
257 | bgp_path_info_mpath_free(&path->mpath); | |
62918377 RW |
258 | if (path->net) |
259 | bgp_addpath_free_info_data(&path->tx_addpath, | |
260 | &path->net->tx_addpath); | |
718e3744 | 261 | |
9b6d8fcf | 262 | peer_unlock(path->peer); /* bgp_path_info peer reference */ |
200df115 | 263 | |
9b6d8fcf | 264 | XFREE(MTYPE_BGP_ROUTE, path); |
718e3744 | 265 | } |
266 | ||
9b6d8fcf | 267 | struct bgp_path_info *bgp_path_info_lock(struct bgp_path_info *path) |
200df115 | 268 | { |
9b6d8fcf DS |
269 | path->lock++; |
270 | return path; | |
200df115 | 271 | } |
272 | ||
9b6d8fcf | 273 | struct bgp_path_info *bgp_path_info_unlock(struct bgp_path_info *path) |
200df115 | 274 | { |
9b6d8fcf DS |
275 | assert(path && path->lock > 0); |
276 | path->lock--; | |
d62a17ae | 277 | |
9b6d8fcf | 278 | if (path->lock == 0) { |
200df115 | 279 | #if 0 |
280 | zlog_debug ("%s: unlocked and freeing", __func__); | |
281 | zlog_backtrace (LOG_DEBUG); | |
282 | #endif | |
9b6d8fcf | 283 | bgp_path_info_free(path); |
d62a17ae | 284 | return NULL; |
285 | } | |
200df115 | 286 | |
287 | #if 0 | |
9b6d8fcf | 288 | if (path->lock == 1) |
200df115 | 289 | { |
290 | zlog_debug ("%s: unlocked to 1", __func__); | |
291 | zlog_backtrace (LOG_DEBUG); | |
292 | } | |
293 | #endif | |
d62a17ae | 294 | |
9b6d8fcf | 295 | return path; |
200df115 | 296 | } |
297 | ||
40381db7 | 298 | void bgp_path_info_add(struct bgp_node *rn, struct bgp_path_info *pi) |
718e3744 | 299 | { |
4b7e6066 | 300 | struct bgp_path_info *top; |
718e3744 | 301 | |
6f94b685 | 302 | top = bgp_node_get_bgp_path_info(rn); |
d62a17ae | 303 | |
6f94b685 | 304 | pi->next = top; |
40381db7 | 305 | pi->prev = NULL; |
d62a17ae | 306 | if (top) |
40381db7 | 307 | top->prev = pi; |
6f94b685 | 308 | bgp_node_set_bgp_path_info(rn, pi); |
d62a17ae | 309 | |
40381db7 | 310 | bgp_path_info_lock(pi); |
d62a17ae | 311 | bgp_lock_node(rn); |
40381db7 | 312 | peer_lock(pi->peer); /* bgp_path_info peer reference */ |
718e3744 | 313 | } |
314 | ||
d62a17ae | 315 | /* Do the actual removal of info from RIB, for use by bgp_process |
b40d939b | 316 | completion callback *only* */ |
40381db7 | 317 | void bgp_path_info_reap(struct bgp_node *rn, struct bgp_path_info *pi) |
718e3744 | 318 | { |
40381db7 DS |
319 | if (pi->next) |
320 | pi->next->prev = pi->prev; | |
321 | if (pi->prev) | |
322 | pi->prev->next = pi->next; | |
d62a17ae | 323 | else |
6f94b685 | 324 | bgp_node_set_bgp_path_info(rn, pi->next); |
d62a17ae | 325 | |
40381db7 DS |
326 | bgp_path_info_mpath_dequeue(pi); |
327 | bgp_path_info_unlock(pi); | |
d62a17ae | 328 | bgp_unlock_node(rn); |
718e3744 | 329 | } |
330 | ||
40381db7 | 331 | void bgp_path_info_delete(struct bgp_node *rn, struct bgp_path_info *pi) |
b40d939b | 332 | { |
40381db7 | 333 | bgp_path_info_set_flag(rn, pi, BGP_PATH_REMOVED); |
d62a17ae | 334 | /* set of previous already took care of pcount */ |
40381db7 | 335 | UNSET_FLAG(pi->flags, BGP_PATH_VALID); |
b40d939b | 336 | } |
337 | ||
18ee8310 | 338 | /* undo the effects of a previous call to bgp_path_info_delete; typically |
8d45210e AS |
339 | called when a route is deleted and then quickly re-added before the |
340 | deletion has been processed */ | |
40381db7 | 341 | void bgp_path_info_restore(struct bgp_node *rn, struct bgp_path_info *pi) |
8d45210e | 342 | { |
40381db7 | 343 | bgp_path_info_unset_flag(rn, pi, BGP_PATH_REMOVED); |
d62a17ae | 344 | /* unset of previous already took care of pcount */ |
40381db7 | 345 | SET_FLAG(pi->flags, BGP_PATH_VALID); |
8d45210e AS |
346 | } |
347 | ||
d62a17ae | 348 | /* Adjust pcount as required */ |
40381db7 | 349 | static void bgp_pcount_adjust(struct bgp_node *rn, struct bgp_path_info *pi) |
1a392d46 | 350 | { |
d62a17ae | 351 | struct bgp_table *table; |
67174041 | 352 | |
d62a17ae | 353 | assert(rn && bgp_node_table(rn)); |
40381db7 | 354 | assert(pi && pi->peer && pi->peer->bgp); |
6f58544d | 355 | |
d62a17ae | 356 | table = bgp_node_table(rn); |
67174041 | 357 | |
40381db7 | 358 | if (pi->peer == pi->peer->bgp->peer_self) |
d62a17ae | 359 | return; |
360 | ||
40381db7 DS |
361 | if (!BGP_PATH_COUNTABLE(pi) |
362 | && CHECK_FLAG(pi->flags, BGP_PATH_COUNTED)) { | |
d62a17ae | 363 | |
40381db7 | 364 | UNSET_FLAG(pi->flags, BGP_PATH_COUNTED); |
d62a17ae | 365 | |
366 | /* slight hack, but more robust against errors. */ | |
40381db7 DS |
367 | if (pi->peer->pcount[table->afi][table->safi]) |
368 | pi->peer->pcount[table->afi][table->safi]--; | |
d8d084d9 | 369 | else |
450971aa | 370 | flog_err(EC_LIB_DEVELOPMENT, |
d8d084d9 | 371 | "Asked to decrement 0 prefix count for peer"); |
40381db7 DS |
372 | } else if (BGP_PATH_COUNTABLE(pi) |
373 | && !CHECK_FLAG(pi->flags, BGP_PATH_COUNTED)) { | |
374 | SET_FLAG(pi->flags, BGP_PATH_COUNTED); | |
375 | pi->peer->pcount[table->afi][table->safi]++; | |
d62a17ae | 376 | } |
1a392d46 PJ |
377 | } |
378 | ||
40381db7 DS |
379 | static int bgp_label_index_differs(struct bgp_path_info *pi1, |
380 | struct bgp_path_info *pi2) | |
28d58fd7 | 381 | { |
40381db7 | 382 | return (!(pi1->attr->label_index == pi2->attr->label_index)); |
28d58fd7 | 383 | } |
1a392d46 | 384 | |
18ee8310 | 385 | /* Set/unset bgp_path_info flags, adjusting any other state as needed. |
1a392d46 PJ |
386 | * This is here primarily to keep prefix-count in check. |
387 | */ | |
40381db7 | 388 | void bgp_path_info_set_flag(struct bgp_node *rn, struct bgp_path_info *pi, |
18ee8310 | 389 | uint32_t flag) |
1a392d46 | 390 | { |
40381db7 | 391 | SET_FLAG(pi->flags, flag); |
d62a17ae | 392 | |
393 | /* early bath if we know it's not a flag that changes countability state | |
394 | */ | |
395 | if (!CHECK_FLAG(flag, | |
1defdda8 | 396 | BGP_PATH_VALID | BGP_PATH_HISTORY | BGP_PATH_REMOVED)) |
d62a17ae | 397 | return; |
398 | ||
40381db7 | 399 | bgp_pcount_adjust(rn, pi); |
1a392d46 PJ |
400 | } |
401 | ||
40381db7 | 402 | void bgp_path_info_unset_flag(struct bgp_node *rn, struct bgp_path_info *pi, |
18ee8310 | 403 | uint32_t flag) |
1a392d46 | 404 | { |
40381db7 | 405 | UNSET_FLAG(pi->flags, flag); |
d62a17ae | 406 | |
407 | /* early bath if we know it's not a flag that changes countability state | |
408 | */ | |
409 | if (!CHECK_FLAG(flag, | |
1defdda8 | 410 | BGP_PATH_VALID | BGP_PATH_HISTORY | BGP_PATH_REMOVED)) |
d62a17ae | 411 | return; |
412 | ||
40381db7 | 413 | bgp_pcount_adjust(rn, pi); |
1a392d46 PJ |
414 | } |
415 | ||
718e3744 | 416 | /* Get MED value. If MED value is missing and "bgp bestpath |
417 | missing-as-worst" is specified, treat it as the worst value. */ | |
d7c0a89a | 418 | static uint32_t bgp_med_value(struct attr *attr, struct bgp *bgp) |
d62a17ae | 419 | { |
420 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)) | |
421 | return attr->med; | |
422 | else { | |
423 | if (bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) | |
424 | return BGP_MED_MAX; | |
425 | else | |
426 | return 0; | |
427 | } | |
718e3744 | 428 | } |
429 | ||
40381db7 | 430 | void bgp_path_info_path_with_addpath_rx_str(struct bgp_path_info *pi, char *buf) |
2ec1e66f | 431 | { |
40381db7 DS |
432 | if (pi->addpath_rx_id) |
433 | sprintf(buf, "path %s (addpath rxid %d)", pi->peer->host, | |
434 | pi->addpath_rx_id); | |
d62a17ae | 435 | else |
40381db7 | 436 | sprintf(buf, "path %s", pi->peer->host); |
d62a17ae | 437 | } |
9fbdd100 | 438 | |
d62a17ae | 439 | /* Compare two bgp route entity. If 'new' is preferable over 'exist' return 1. |
440 | */ | |
18ee8310 DS |
441 | static int bgp_path_info_cmp(struct bgp *bgp, struct bgp_path_info *new, |
442 | struct bgp_path_info *exist, int *paths_eq, | |
443 | struct bgp_maxpaths_cfg *mpath_cfg, int debug, | |
fdf81fa0 DS |
444 | char *pfx_buf, afi_t afi, safi_t safi, |
445 | enum bgp_path_selection_reason *reason) | |
d62a17ae | 446 | { |
447 | struct attr *newattr, *existattr; | |
448 | bgp_peer_sort_t new_sort; | |
449 | bgp_peer_sort_t exist_sort; | |
d7c0a89a QY |
450 | uint32_t new_pref; |
451 | uint32_t exist_pref; | |
452 | uint32_t new_med; | |
453 | uint32_t exist_med; | |
454 | uint32_t new_weight; | |
455 | uint32_t exist_weight; | |
d62a17ae | 456 | uint32_t newm, existm; |
457 | struct in_addr new_id; | |
458 | struct in_addr exist_id; | |
459 | int new_cluster; | |
460 | int exist_cluster; | |
461 | int internal_as_route; | |
462 | int confed_as_route; | |
04d14c8b | 463 | int ret = 0; |
d62a17ae | 464 | char new_buf[PATH_ADDPATH_STR_BUFFER]; |
465 | char exist_buf[PATH_ADDPATH_STR_BUFFER]; | |
d7c0a89a QY |
466 | uint32_t new_mm_seq; |
467 | uint32_t exist_mm_seq; | |
6d8c603a | 468 | int nh_cmp; |
d62a17ae | 469 | |
470 | *paths_eq = 0; | |
471 | ||
472 | /* 0. Null check. */ | |
473 | if (new == NULL) { | |
fdf81fa0 | 474 | *reason = bgp_path_selection_none; |
d62a17ae | 475 | if (debug) |
476 | zlog_debug("%s: new is NULL", pfx_buf); | |
477 | return 0; | |
478 | } | |
2ec1e66f | 479 | |
d62a17ae | 480 | if (debug) |
18ee8310 | 481 | bgp_path_info_path_with_addpath_rx_str(new, new_buf); |
718e3744 | 482 | |
d62a17ae | 483 | if (exist == NULL) { |
fdf81fa0 | 484 | *reason = bgp_path_selection_first; |
d62a17ae | 485 | if (debug) |
486 | zlog_debug("%s: %s is the initial bestpath", pfx_buf, | |
487 | new_buf); | |
488 | return 1; | |
489 | } | |
2ec1e66f | 490 | |
d62a17ae | 491 | if (debug) { |
18ee8310 | 492 | bgp_path_info_path_with_addpath_rx_str(exist, exist_buf); |
d62a17ae | 493 | zlog_debug("%s: Comparing %s flags 0x%x with %s flags 0x%x", |
494 | pfx_buf, new_buf, new->flags, exist_buf, | |
495 | exist->flags); | |
496 | } | |
8ff56318 | 497 | |
d62a17ae | 498 | newattr = new->attr; |
499 | existattr = exist->attr; | |
500 | ||
501 | /* For EVPN routes, we cannot just go by local vs remote, we have to | |
502 | * look at the MAC mobility sequence number, if present. | |
503 | */ | |
504 | if (safi == SAFI_EVPN) { | |
505 | /* This is an error condition described in RFC 7432 Section | |
506 | * 15.2. The RFC | |
507 | * states that in this scenario "the PE MUST alert the operator" | |
508 | * but it | |
509 | * does not state what other action to take. In order to provide | |
510 | * some | |
511 | * consistency in this scenario we are going to prefer the path | |
512 | * with the | |
513 | * sticky flag. | |
514 | */ | |
515 | if (newattr->sticky != existattr->sticky) { | |
516 | if (!debug) { | |
517 | prefix2str(&new->net->p, pfx_buf, | |
518 | sizeof(*pfx_buf) | |
519 | * PREFIX2STR_BUFFER); | |
18ee8310 DS |
520 | bgp_path_info_path_with_addpath_rx_str(new, |
521 | new_buf); | |
522 | bgp_path_info_path_with_addpath_rx_str( | |
523 | exist, exist_buf); | |
d62a17ae | 524 | } |
525 | ||
526 | if (newattr->sticky && !existattr->sticky) { | |
fdf81fa0 | 527 | *reason = bgp_path_selection_evpn_sticky_mac; |
deff24ca DS |
528 | if (debug) |
529 | zlog_debug( | |
530 | "%s: %s wins over %s due to sticky MAC flag", | |
531 | pfx_buf, new_buf, exist_buf); | |
d62a17ae | 532 | return 1; |
533 | } | |
534 | ||
535 | if (!newattr->sticky && existattr->sticky) { | |
fdf81fa0 | 536 | *reason = bgp_path_selection_evpn_sticky_mac; |
deff24ca DS |
537 | if (debug) |
538 | zlog_debug( | |
539 | "%s: %s loses to %s due to sticky MAC flag", | |
540 | pfx_buf, new_buf, exist_buf); | |
d62a17ae | 541 | return 0; |
542 | } | |
543 | } | |
128ea8ab | 544 | |
d62a17ae | 545 | new_mm_seq = mac_mobility_seqnum(newattr); |
546 | exist_mm_seq = mac_mobility_seqnum(existattr); | |
8ff56318 | 547 | |
d62a17ae | 548 | if (new_mm_seq > exist_mm_seq) { |
fdf81fa0 | 549 | *reason = bgp_path_selection_evpn_seq; |
d62a17ae | 550 | if (debug) |
551 | zlog_debug( | |
552 | "%s: %s wins over %s due to MM seq %u > %u", | |
553 | pfx_buf, new_buf, exist_buf, new_mm_seq, | |
554 | exist_mm_seq); | |
555 | return 1; | |
556 | } | |
8ff56318 | 557 | |
d62a17ae | 558 | if (new_mm_seq < exist_mm_seq) { |
fdf81fa0 | 559 | *reason = bgp_path_selection_evpn_seq; |
d62a17ae | 560 | if (debug) |
561 | zlog_debug( | |
562 | "%s: %s loses to %s due to MM seq %u < %u", | |
563 | pfx_buf, new_buf, exist_buf, new_mm_seq, | |
564 | exist_mm_seq); | |
565 | return 0; | |
566 | } | |
6d8c603a AK |
567 | |
568 | /* | |
569 | * if sequence numbers are the same path with the lowest IP | |
570 | * wins | |
571 | */ | |
572 | nh_cmp = bgp_path_info_nexthop_cmp(new, exist); | |
573 | if (nh_cmp < 0) { | |
fdf81fa0 | 574 | *reason = bgp_path_selection_evpn_lower_ip; |
6d8c603a AK |
575 | if (debug) |
576 | zlog_debug( | |
577 | "%s: %s wins over %s due to same MM seq %u and lower IP %s", | |
578 | pfx_buf, new_buf, exist_buf, new_mm_seq, | |
579 | inet_ntoa(new->attr->nexthop)); | |
580 | return 1; | |
581 | } | |
582 | if (nh_cmp > 0) { | |
fdf81fa0 | 583 | *reason = bgp_path_selection_evpn_lower_ip; |
6d8c603a AK |
584 | if (debug) |
585 | zlog_debug( | |
586 | "%s: %s loses to %s due to same MM seq %u and higher IP %s", | |
587 | pfx_buf, new_buf, exist_buf, new_mm_seq, | |
588 | inet_ntoa(new->attr->nexthop)); | |
589 | return 0; | |
590 | } | |
d62a17ae | 591 | } |
9fbdd100 | 592 | |
d62a17ae | 593 | /* 1. Weight check. */ |
d62a17ae | 594 | new_weight = newattr->weight; |
595 | exist_weight = existattr->weight; | |
8ff56318 | 596 | |
d62a17ae | 597 | if (new_weight > exist_weight) { |
fdf81fa0 | 598 | *reason = bgp_path_selection_weight; |
d62a17ae | 599 | if (debug) |
600 | zlog_debug("%s: %s wins over %s due to weight %d > %d", | |
601 | pfx_buf, new_buf, exist_buf, new_weight, | |
602 | exist_weight); | |
603 | return 1; | |
604 | } | |
718e3744 | 605 | |
d62a17ae | 606 | if (new_weight < exist_weight) { |
fdf81fa0 | 607 | *reason = bgp_path_selection_weight; |
d62a17ae | 608 | if (debug) |
609 | zlog_debug("%s: %s loses to %s due to weight %d < %d", | |
610 | pfx_buf, new_buf, exist_buf, new_weight, | |
611 | exist_weight); | |
612 | return 0; | |
613 | } | |
9fbdd100 | 614 | |
d62a17ae | 615 | /* 2. Local preference check. */ |
616 | new_pref = exist_pref = bgp->default_local_pref; | |
617 | ||
618 | if (newattr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)) | |
619 | new_pref = newattr->local_pref; | |
620 | if (existattr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)) | |
621 | exist_pref = existattr->local_pref; | |
622 | ||
623 | if (new_pref > exist_pref) { | |
fdf81fa0 | 624 | *reason = bgp_path_selection_local_pref; |
d62a17ae | 625 | if (debug) |
626 | zlog_debug( | |
627 | "%s: %s wins over %s due to localpref %d > %d", | |
628 | pfx_buf, new_buf, exist_buf, new_pref, | |
629 | exist_pref); | |
630 | return 1; | |
631 | } | |
718e3744 | 632 | |
d62a17ae | 633 | if (new_pref < exist_pref) { |
fdf81fa0 | 634 | *reason = bgp_path_selection_local_pref; |
d62a17ae | 635 | if (debug) |
636 | zlog_debug( | |
637 | "%s: %s loses to %s due to localpref %d < %d", | |
638 | pfx_buf, new_buf, exist_buf, new_pref, | |
639 | exist_pref); | |
640 | return 0; | |
641 | } | |
9fbdd100 | 642 | |
d62a17ae | 643 | /* 3. Local route check. We prefer: |
644 | * - BGP_ROUTE_STATIC | |
645 | * - BGP_ROUTE_AGGREGATE | |
646 | * - BGP_ROUTE_REDISTRIBUTE | |
647 | */ | |
90f4f482 | 648 | if (!(new->sub_type == BGP_ROUTE_NORMAL || |
649 | new->sub_type == BGP_ROUTE_IMPORTED)) { | |
fdf81fa0 | 650 | *reason = bgp_path_selection_local_route; |
d62a17ae | 651 | if (debug) |
652 | zlog_debug( | |
653 | "%s: %s wins over %s due to preferred BGP_ROUTE type", | |
654 | pfx_buf, new_buf, exist_buf); | |
655 | return 1; | |
656 | } | |
718e3744 | 657 | |
90f4f482 | 658 | if (!(exist->sub_type == BGP_ROUTE_NORMAL || |
88493076 | 659 | exist->sub_type == BGP_ROUTE_IMPORTED)) { |
fdf81fa0 | 660 | *reason = bgp_path_selection_local_route; |
d62a17ae | 661 | if (debug) |
662 | zlog_debug( | |
663 | "%s: %s loses to %s due to preferred BGP_ROUTE type", | |
664 | pfx_buf, new_buf, exist_buf); | |
665 | return 0; | |
6811845b | 666 | } |
718e3744 | 667 | |
d62a17ae | 668 | /* 4. AS path length check. */ |
669 | if (!bgp_flag_check(bgp, BGP_FLAG_ASPATH_IGNORE)) { | |
670 | int exist_hops = aspath_count_hops(existattr->aspath); | |
671 | int exist_confeds = aspath_count_confeds(existattr->aspath); | |
672 | ||
673 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_CONFED)) { | |
674 | int aspath_hops; | |
675 | ||
676 | aspath_hops = aspath_count_hops(newattr->aspath); | |
677 | aspath_hops += aspath_count_confeds(newattr->aspath); | |
678 | ||
679 | if (aspath_hops < (exist_hops + exist_confeds)) { | |
fdf81fa0 | 680 | *reason = bgp_path_selection_confed_as_path; |
d62a17ae | 681 | if (debug) |
682 | zlog_debug( | |
683 | "%s: %s wins over %s due to aspath (with confeds) hopcount %d < %d", | |
684 | pfx_buf, new_buf, exist_buf, | |
685 | aspath_hops, | |
686 | (exist_hops + exist_confeds)); | |
687 | return 1; | |
688 | } | |
689 | ||
690 | if (aspath_hops > (exist_hops + exist_confeds)) { | |
fdf81fa0 | 691 | *reason = bgp_path_selection_confed_as_path; |
d62a17ae | 692 | if (debug) |
693 | zlog_debug( | |
694 | "%s: %s loses to %s due to aspath (with confeds) hopcount %d > %d", | |
695 | pfx_buf, new_buf, exist_buf, | |
696 | aspath_hops, | |
697 | (exist_hops + exist_confeds)); | |
698 | return 0; | |
699 | } | |
700 | } else { | |
701 | int newhops = aspath_count_hops(newattr->aspath); | |
702 | ||
703 | if (newhops < exist_hops) { | |
fdf81fa0 | 704 | *reason = bgp_path_selection_as_path; |
d62a17ae | 705 | if (debug) |
706 | zlog_debug( | |
707 | "%s: %s wins over %s due to aspath hopcount %d < %d", | |
708 | pfx_buf, new_buf, exist_buf, | |
709 | newhops, exist_hops); | |
710 | return 1; | |
711 | } | |
712 | ||
713 | if (newhops > exist_hops) { | |
fdf81fa0 | 714 | *reason = bgp_path_selection_as_path; |
d62a17ae | 715 | if (debug) |
716 | zlog_debug( | |
717 | "%s: %s loses to %s due to aspath hopcount %d > %d", | |
718 | pfx_buf, new_buf, exist_buf, | |
719 | newhops, exist_hops); | |
720 | return 0; | |
721 | } | |
722 | } | |
723 | } | |
9fbdd100 | 724 | |
d62a17ae | 725 | /* 5. Origin check. */ |
726 | if (newattr->origin < existattr->origin) { | |
fdf81fa0 | 727 | *reason = bgp_path_selection_origin; |
d62a17ae | 728 | if (debug) |
729 | zlog_debug("%s: %s wins over %s due to ORIGIN %s < %s", | |
730 | pfx_buf, new_buf, exist_buf, | |
731 | bgp_origin_long_str[newattr->origin], | |
732 | bgp_origin_long_str[existattr->origin]); | |
733 | return 1; | |
734 | } | |
718e3744 | 735 | |
d62a17ae | 736 | if (newattr->origin > existattr->origin) { |
fdf81fa0 | 737 | *reason = bgp_path_selection_origin; |
d62a17ae | 738 | if (debug) |
739 | zlog_debug("%s: %s loses to %s due to ORIGIN %s > %s", | |
740 | pfx_buf, new_buf, exist_buf, | |
741 | bgp_origin_long_str[newattr->origin], | |
742 | bgp_origin_long_str[existattr->origin]); | |
743 | return 0; | |
744 | } | |
718e3744 | 745 | |
d62a17ae | 746 | /* 6. MED check. */ |
747 | internal_as_route = (aspath_count_hops(newattr->aspath) == 0 | |
748 | && aspath_count_hops(existattr->aspath) == 0); | |
749 | confed_as_route = (aspath_count_confeds(newattr->aspath) > 0 | |
750 | && aspath_count_confeds(existattr->aspath) > 0 | |
751 | && aspath_count_hops(newattr->aspath) == 0 | |
752 | && aspath_count_hops(existattr->aspath) == 0); | |
753 | ||
754 | if (bgp_flag_check(bgp, BGP_FLAG_ALWAYS_COMPARE_MED) | |
755 | || (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED) && confed_as_route) | |
756 | || aspath_cmp_left(newattr->aspath, existattr->aspath) | |
757 | || aspath_cmp_left_confed(newattr->aspath, existattr->aspath) | |
758 | || internal_as_route) { | |
759 | new_med = bgp_med_value(new->attr, bgp); | |
760 | exist_med = bgp_med_value(exist->attr, bgp); | |
761 | ||
762 | if (new_med < exist_med) { | |
fdf81fa0 | 763 | *reason = bgp_path_selection_med; |
d62a17ae | 764 | if (debug) |
765 | zlog_debug( | |
766 | "%s: %s wins over %s due to MED %d < %d", | |
767 | pfx_buf, new_buf, exist_buf, new_med, | |
768 | exist_med); | |
769 | return 1; | |
770 | } | |
8ff56318 | 771 | |
d62a17ae | 772 | if (new_med > exist_med) { |
fdf81fa0 | 773 | *reason = bgp_path_selection_med; |
d62a17ae | 774 | if (debug) |
775 | zlog_debug( | |
776 | "%s: %s loses to %s due to MED %d > %d", | |
777 | pfx_buf, new_buf, exist_buf, new_med, | |
778 | exist_med); | |
779 | return 0; | |
780 | } | |
781 | } | |
9fbdd100 | 782 | |
d62a17ae | 783 | /* 7. Peer type check. */ |
784 | new_sort = new->peer->sort; | |
785 | exist_sort = exist->peer->sort; | |
786 | ||
787 | if (new_sort == BGP_PEER_EBGP | |
788 | && (exist_sort == BGP_PEER_IBGP || exist_sort == BGP_PEER_CONFED)) { | |
fdf81fa0 | 789 | *reason = bgp_path_selection_peer; |
d62a17ae | 790 | if (debug) |
791 | zlog_debug( | |
792 | "%s: %s wins over %s due to eBGP peer > iBGP peer", | |
793 | pfx_buf, new_buf, exist_buf); | |
794 | return 1; | |
795 | } | |
718e3744 | 796 | |
d62a17ae | 797 | if (exist_sort == BGP_PEER_EBGP |
798 | && (new_sort == BGP_PEER_IBGP || new_sort == BGP_PEER_CONFED)) { | |
fdf81fa0 | 799 | *reason = bgp_path_selection_peer; |
d62a17ae | 800 | if (debug) |
801 | zlog_debug( | |
802 | "%s: %s loses to %s due to iBGP peer < eBGP peer", | |
803 | pfx_buf, new_buf, exist_buf); | |
804 | return 0; | |
805 | } | |
8ff56318 | 806 | |
d62a17ae | 807 | /* 8. IGP metric check. */ |
808 | newm = existm = 0; | |
8ff56318 | 809 | |
d62a17ae | 810 | if (new->extra) |
811 | newm = new->extra->igpmetric; | |
812 | if (exist->extra) | |
813 | existm = exist->extra->igpmetric; | |
9fbdd100 | 814 | |
d62a17ae | 815 | if (newm < existm) { |
816 | if (debug) | |
817 | zlog_debug( | |
818 | "%s: %s wins over %s due to IGP metric %d < %d", | |
819 | pfx_buf, new_buf, exist_buf, newm, existm); | |
820 | ret = 1; | |
821 | } | |
718e3744 | 822 | |
d62a17ae | 823 | if (newm > existm) { |
824 | if (debug) | |
825 | zlog_debug( | |
826 | "%s: %s loses to %s due to IGP metric %d > %d", | |
827 | pfx_buf, new_buf, exist_buf, newm, existm); | |
828 | ret = 0; | |
5e242b0d | 829 | } |
5e242b0d | 830 | |
d62a17ae | 831 | /* 9. Same IGP metric. Compare the cluster list length as |
832 | representative of IGP hops metric. Rewrite the metric value | |
833 | pair (newm, existm) with the cluster list length. Prefer the | |
834 | path with smaller cluster list length. */ | |
835 | if (newm == existm) { | |
836 | if (peer_sort(new->peer) == BGP_PEER_IBGP | |
837 | && peer_sort(exist->peer) == BGP_PEER_IBGP | |
838 | && (mpath_cfg == NULL | |
839 | || CHECK_FLAG( | |
840 | mpath_cfg->ibgp_flags, | |
841 | BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN))) { | |
842 | newm = BGP_CLUSTER_LIST_LENGTH(new->attr); | |
843 | existm = BGP_CLUSTER_LIST_LENGTH(exist->attr); | |
844 | ||
845 | if (newm < existm) { | |
846 | if (debug) | |
847 | zlog_debug( | |
848 | "%s: %s wins over %s due to CLUSTER_LIST length %d < %d", | |
849 | pfx_buf, new_buf, exist_buf, | |
850 | newm, existm); | |
851 | ret = 1; | |
852 | } | |
853 | ||
854 | if (newm > existm) { | |
855 | if (debug) | |
856 | zlog_debug( | |
857 | "%s: %s loses to %s due to CLUSTER_LIST length %d > %d", | |
858 | pfx_buf, new_buf, exist_buf, | |
859 | newm, existm); | |
860 | ret = 0; | |
861 | } | |
862 | } | |
863 | } | |
31a4638f | 864 | |
d62a17ae | 865 | /* 10. confed-external vs. confed-internal */ |
866 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
867 | if (new_sort == BGP_PEER_CONFED | |
868 | && exist_sort == BGP_PEER_IBGP) { | |
fdf81fa0 | 869 | *reason = bgp_path_selection_confed; |
d62a17ae | 870 | if (debug) |
871 | zlog_debug( | |
872 | "%s: %s wins over %s due to confed-external peer > confed-internal peer", | |
873 | pfx_buf, new_buf, exist_buf); | |
874 | return 1; | |
875 | } | |
718e3744 | 876 | |
d62a17ae | 877 | if (exist_sort == BGP_PEER_CONFED |
878 | && new_sort == BGP_PEER_IBGP) { | |
fdf81fa0 | 879 | *reason = bgp_path_selection_confed; |
d62a17ae | 880 | if (debug) |
881 | zlog_debug( | |
882 | "%s: %s loses to %s due to confed-internal peer < confed-external peer", | |
883 | pfx_buf, new_buf, exist_buf); | |
884 | return 0; | |
885 | } | |
886 | } | |
718e3744 | 887 | |
d62a17ae | 888 | /* 11. Maximum path check. */ |
889 | if (newm == existm) { | |
890 | /* If one path has a label but the other does not, do not treat | |
891 | * them as equals for multipath | |
892 | */ | |
a4d82a8a | 893 | if ((new->extra &&bgp_is_valid_label(&new->extra->label[0])) |
d62a17ae | 894 | != (exist->extra |
b57ba6d2 | 895 | && bgp_is_valid_label(&exist->extra->label[0]))) { |
d62a17ae | 896 | if (debug) |
897 | zlog_debug( | |
898 | "%s: %s and %s cannot be multipath, one has a label while the other does not", | |
899 | pfx_buf, new_buf, exist_buf); | |
900 | } else if (bgp_flag_check(bgp, | |
901 | BGP_FLAG_ASPATH_MULTIPATH_RELAX)) { | |
902 | ||
903 | /* | |
904 | * For the two paths, all comparison steps till IGP | |
905 | * metric | |
906 | * have succeeded - including AS_PATH hop count. Since | |
907 | * 'bgp | |
908 | * bestpath as-path multipath-relax' knob is on, we | |
909 | * don't need | |
910 | * an exact match of AS_PATH. Thus, mark the paths are | |
911 | * equal. | |
912 | * That will trigger both these paths to get into the | |
913 | * multipath | |
914 | * array. | |
915 | */ | |
916 | *paths_eq = 1; | |
917 | ||
918 | if (debug) | |
919 | zlog_debug( | |
920 | "%s: %s and %s are equal via multipath-relax", | |
921 | pfx_buf, new_buf, exist_buf); | |
922 | } else if (new->peer->sort == BGP_PEER_IBGP) { | |
923 | if (aspath_cmp(new->attr->aspath, | |
924 | exist->attr->aspath)) { | |
925 | *paths_eq = 1; | |
926 | ||
927 | if (debug) | |
928 | zlog_debug( | |
929 | "%s: %s and %s are equal via matching aspaths", | |
930 | pfx_buf, new_buf, exist_buf); | |
931 | } | |
932 | } else if (new->peer->as == exist->peer->as) { | |
933 | *paths_eq = 1; | |
934 | ||
935 | if (debug) | |
936 | zlog_debug( | |
937 | "%s: %s and %s are equal via same remote-as", | |
938 | pfx_buf, new_buf, exist_buf); | |
939 | } | |
940 | } else { | |
941 | /* | |
942 | * TODO: If unequal cost ibgp multipath is enabled we can | |
943 | * mark the paths as equal here instead of returning | |
944 | */ | |
945 | if (debug) { | |
946 | if (ret == 1) | |
947 | zlog_debug( | |
948 | "%s: %s wins over %s after IGP metric comparison", | |
949 | pfx_buf, new_buf, exist_buf); | |
950 | else | |
951 | zlog_debug( | |
952 | "%s: %s loses to %s after IGP metric comparison", | |
953 | pfx_buf, new_buf, exist_buf); | |
954 | } | |
fdf81fa0 | 955 | *reason = bgp_path_selection_igp_metric; |
d62a17ae | 956 | return ret; |
957 | } | |
718e3744 | 958 | |
d62a17ae | 959 | /* 12. If both paths are external, prefer the path that was received |
960 | first (the oldest one). This step minimizes route-flap, since a | |
961 | newer path won't displace an older one, even if it was the | |
962 | preferred route based on the additional decision criteria below. */ | |
963 | if (!bgp_flag_check(bgp, BGP_FLAG_COMPARE_ROUTER_ID) | |
964 | && new_sort == BGP_PEER_EBGP && exist_sort == BGP_PEER_EBGP) { | |
1defdda8 | 965 | if (CHECK_FLAG(new->flags, BGP_PATH_SELECTED)) { |
fdf81fa0 | 966 | *reason = bgp_path_selection_older; |
d62a17ae | 967 | if (debug) |
968 | zlog_debug( | |
969 | "%s: %s wins over %s due to oldest external", | |
970 | pfx_buf, new_buf, exist_buf); | |
971 | return 1; | |
972 | } | |
9fbdd100 | 973 | |
1defdda8 | 974 | if (CHECK_FLAG(exist->flags, BGP_PATH_SELECTED)) { |
fdf81fa0 | 975 | *reason = bgp_path_selection_older; |
d62a17ae | 976 | if (debug) |
977 | zlog_debug( | |
978 | "%s: %s loses to %s due to oldest external", | |
979 | pfx_buf, new_buf, exist_buf); | |
980 | return 0; | |
981 | } | |
982 | } | |
718e3744 | 983 | |
d62a17ae | 984 | /* 13. Router-ID comparision. */ |
985 | /* If one of the paths is "stale", the corresponding peer router-id will | |
986 | * be 0 and would always win over the other path. If originator id is | |
987 | * used for the comparision, it will decide which path is better. | |
988 | */ | |
989 | if (newattr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)) | |
990 | new_id.s_addr = newattr->originator_id.s_addr; | |
991 | else | |
992 | new_id.s_addr = new->peer->remote_id.s_addr; | |
993 | if (existattr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)) | |
994 | exist_id.s_addr = existattr->originator_id.s_addr; | |
995 | else | |
996 | exist_id.s_addr = exist->peer->remote_id.s_addr; | |
997 | ||
998 | if (ntohl(new_id.s_addr) < ntohl(exist_id.s_addr)) { | |
fdf81fa0 | 999 | *reason = bgp_path_selection_router_id; |
d62a17ae | 1000 | if (debug) |
1001 | zlog_debug( | |
1002 | "%s: %s wins over %s due to Router-ID comparison", | |
1003 | pfx_buf, new_buf, exist_buf); | |
1004 | return 1; | |
1005 | } | |
718e3744 | 1006 | |
d62a17ae | 1007 | if (ntohl(new_id.s_addr) > ntohl(exist_id.s_addr)) { |
fdf81fa0 | 1008 | *reason = bgp_path_selection_router_id; |
d62a17ae | 1009 | if (debug) |
1010 | zlog_debug( | |
1011 | "%s: %s loses to %s due to Router-ID comparison", | |
1012 | pfx_buf, new_buf, exist_buf); | |
1013 | return 0; | |
1014 | } | |
9fbdd100 | 1015 | |
d62a17ae | 1016 | /* 14. Cluster length comparision. */ |
1017 | new_cluster = BGP_CLUSTER_LIST_LENGTH(new->attr); | |
1018 | exist_cluster = BGP_CLUSTER_LIST_LENGTH(exist->attr); | |
1019 | ||
1020 | if (new_cluster < exist_cluster) { | |
fdf81fa0 | 1021 | *reason = bgp_path_selection_cluster_length; |
d62a17ae | 1022 | if (debug) |
1023 | zlog_debug( | |
1024 | "%s: %s wins over %s due to CLUSTER_LIST length %d < %d", | |
1025 | pfx_buf, new_buf, exist_buf, new_cluster, | |
1026 | exist_cluster); | |
1027 | return 1; | |
1028 | } | |
718e3744 | 1029 | |
d62a17ae | 1030 | if (new_cluster > exist_cluster) { |
fdf81fa0 | 1031 | *reason = bgp_path_selection_cluster_length; |
d62a17ae | 1032 | if (debug) |
1033 | zlog_debug( | |
1034 | "%s: %s loses to %s due to CLUSTER_LIST length %d > %d", | |
1035 | pfx_buf, new_buf, exist_buf, new_cluster, | |
1036 | exist_cluster); | |
1037 | return 0; | |
1038 | } | |
9fbdd100 | 1039 | |
d62a17ae | 1040 | /* 15. Neighbor address comparision. */ |
1041 | /* Do this only if neither path is "stale" as stale paths do not have | |
1042 | * valid peer information (as the connection may or may not be up). | |
1043 | */ | |
1defdda8 | 1044 | if (CHECK_FLAG(exist->flags, BGP_PATH_STALE)) { |
fdf81fa0 | 1045 | *reason = bgp_path_selection_stale; |
d62a17ae | 1046 | if (debug) |
1047 | zlog_debug( | |
1048 | "%s: %s wins over %s due to latter path being STALE", | |
1049 | pfx_buf, new_buf, exist_buf); | |
1050 | return 1; | |
1051 | } | |
0de5153c | 1052 | |
1defdda8 | 1053 | if (CHECK_FLAG(new->flags, BGP_PATH_STALE)) { |
fdf81fa0 | 1054 | *reason = bgp_path_selection_stale; |
d62a17ae | 1055 | if (debug) |
1056 | zlog_debug( | |
1057 | "%s: %s loses to %s due to former path being STALE", | |
1058 | pfx_buf, new_buf, exist_buf); | |
1059 | return 0; | |
1060 | } | |
718e3744 | 1061 | |
d62a17ae | 1062 | /* locally configured routes to advertise do not have su_remote */ |
fdf81fa0 DS |
1063 | if (new->peer->su_remote == NULL) { |
1064 | *reason = bgp_path_selection_local_configured; | |
d62a17ae | 1065 | return 0; |
fdf81fa0 DS |
1066 | } |
1067 | if (exist->peer->su_remote == NULL) { | |
1068 | *reason = bgp_path_selection_local_configured; | |
d62a17ae | 1069 | return 1; |
fdf81fa0 | 1070 | } |
9fbdd100 | 1071 | |
d62a17ae | 1072 | ret = sockunion_cmp(new->peer->su_remote, exist->peer->su_remote); |
1073 | ||
1074 | if (ret == 1) { | |
fdf81fa0 | 1075 | *reason = bgp_path_selection_neighbor_ip; |
d62a17ae | 1076 | if (debug) |
1077 | zlog_debug( | |
1078 | "%s: %s loses to %s due to Neighor IP comparison", | |
1079 | pfx_buf, new_buf, exist_buf); | |
1080 | return 0; | |
1081 | } | |
1082 | ||
1083 | if (ret == -1) { | |
fdf81fa0 | 1084 | *reason = bgp_path_selection_neighbor_ip; |
d62a17ae | 1085 | if (debug) |
1086 | zlog_debug( | |
1087 | "%s: %s wins over %s due to Neighor IP comparison", | |
1088 | pfx_buf, new_buf, exist_buf); | |
1089 | return 1; | |
1090 | } | |
9fbdd100 | 1091 | |
fdf81fa0 | 1092 | *reason = bgp_path_selection_default; |
d62a17ae | 1093 | if (debug) |
1094 | zlog_debug("%s: %s wins over %s due to nothing left to compare", | |
1095 | pfx_buf, new_buf, exist_buf); | |
718e3744 | 1096 | |
d62a17ae | 1097 | return 1; |
718e3744 | 1098 | } |
1099 | ||
65efcfce LB |
1100 | /* Compare two bgp route entity. Return -1 if new is preferred, 1 if exist |
1101 | * is preferred, or 0 if they are the same (usually will only occur if | |
d62a17ae | 1102 | * multipath is enabled |
65efcfce | 1103 | * This version is compatible with */ |
18ee8310 DS |
1104 | int bgp_path_info_cmp_compatible(struct bgp *bgp, struct bgp_path_info *new, |
1105 | struct bgp_path_info *exist, char *pfx_buf, | |
fdf81fa0 DS |
1106 | afi_t afi, safi_t safi, |
1107 | enum bgp_path_selection_reason *reason) | |
d62a17ae | 1108 | { |
1109 | int paths_eq; | |
1110 | int ret; | |
18ee8310 | 1111 | ret = bgp_path_info_cmp(bgp, new, exist, &paths_eq, NULL, 0, pfx_buf, |
fdf81fa0 | 1112 | afi, safi, reason); |
d62a17ae | 1113 | |
1114 | if (paths_eq) | |
1115 | ret = 0; | |
1116 | else { | |
1117 | if (ret == 1) | |
1118 | ret = -1; | |
1119 | else | |
1120 | ret = 1; | |
1121 | } | |
1122 | return ret; | |
65efcfce LB |
1123 | } |
1124 | ||
d62a17ae | 1125 | static enum filter_type bgp_input_filter(struct peer *peer, struct prefix *p, |
1126 | struct attr *attr, afi_t afi, | |
1127 | safi_t safi) | |
718e3744 | 1128 | { |
d62a17ae | 1129 | struct bgp_filter *filter; |
718e3744 | 1130 | |
d62a17ae | 1131 | filter = &peer->filter[afi][safi]; |
718e3744 | 1132 | |
d62a17ae | 1133 | #define FILTER_EXIST_WARN(F, f, filter) \ |
1134 | if (BGP_DEBUG(update, UPDATE_IN) && !(F##_IN(filter))) \ | |
d8d084d9 DS |
1135 | zlog_debug("%s: Could not find configured input %s-list %s!", \ |
1136 | peer->host, #f, F##_IN_NAME(filter)); | |
d62a17ae | 1137 | |
1138 | if (DISTRIBUTE_IN_NAME(filter)) { | |
1139 | FILTER_EXIST_WARN(DISTRIBUTE, distribute, filter); | |
1140 | ||
1141 | if (access_list_apply(DISTRIBUTE_IN(filter), p) == FILTER_DENY) | |
1142 | return FILTER_DENY; | |
1143 | } | |
1144 | ||
1145 | if (PREFIX_LIST_IN_NAME(filter)) { | |
1146 | FILTER_EXIST_WARN(PREFIX_LIST, prefix, filter); | |
1147 | ||
1148 | if (prefix_list_apply(PREFIX_LIST_IN(filter), p) == PREFIX_DENY) | |
1149 | return FILTER_DENY; | |
1150 | } | |
1151 | ||
1152 | if (FILTER_LIST_IN_NAME(filter)) { | |
1153 | FILTER_EXIST_WARN(FILTER_LIST, as, filter); | |
1154 | ||
1155 | if (as_list_apply(FILTER_LIST_IN(filter), attr->aspath) | |
1156 | == AS_FILTER_DENY) | |
1157 | return FILTER_DENY; | |
1158 | } | |
1159 | ||
1160 | return FILTER_PERMIT; | |
650f76c2 | 1161 | #undef FILTER_EXIST_WARN |
718e3744 | 1162 | } |
1163 | ||
d62a17ae | 1164 | static enum filter_type bgp_output_filter(struct peer *peer, struct prefix *p, |
1165 | struct attr *attr, afi_t afi, | |
1166 | safi_t safi) | |
718e3744 | 1167 | { |
d62a17ae | 1168 | struct bgp_filter *filter; |
1169 | ||
1170 | filter = &peer->filter[afi][safi]; | |
1171 | ||
1172 | #define FILTER_EXIST_WARN(F, f, filter) \ | |
1173 | if (BGP_DEBUG(update, UPDATE_OUT) && !(F##_OUT(filter))) \ | |
d8d084d9 DS |
1174 | zlog_debug("%s: Could not find configured output %s-list %s!", \ |
1175 | peer->host, #f, F##_OUT_NAME(filter)); | |
718e3744 | 1176 | |
d62a17ae | 1177 | if (DISTRIBUTE_OUT_NAME(filter)) { |
1178 | FILTER_EXIST_WARN(DISTRIBUTE, distribute, filter); | |
718e3744 | 1179 | |
d62a17ae | 1180 | if (access_list_apply(DISTRIBUTE_OUT(filter), p) == FILTER_DENY) |
1181 | return FILTER_DENY; | |
1182 | } | |
1183 | ||
1184 | if (PREFIX_LIST_OUT_NAME(filter)) { | |
1185 | FILTER_EXIST_WARN(PREFIX_LIST, prefix, filter); | |
650f76c2 | 1186 | |
d62a17ae | 1187 | if (prefix_list_apply(PREFIX_LIST_OUT(filter), p) |
1188 | == PREFIX_DENY) | |
1189 | return FILTER_DENY; | |
1190 | } | |
718e3744 | 1191 | |
d62a17ae | 1192 | if (FILTER_LIST_OUT_NAME(filter)) { |
1193 | FILTER_EXIST_WARN(FILTER_LIST, as, filter); | |
718e3744 | 1194 | |
d62a17ae | 1195 | if (as_list_apply(FILTER_LIST_OUT(filter), attr->aspath) |
1196 | == AS_FILTER_DENY) | |
1197 | return FILTER_DENY; | |
1198 | } | |
718e3744 | 1199 | |
d62a17ae | 1200 | return FILTER_PERMIT; |
650f76c2 | 1201 | #undef FILTER_EXIST_WARN |
718e3744 | 1202 | } |
1203 | ||
1204 | /* If community attribute includes no_export then return 1. */ | |
d62a17ae | 1205 | static int bgp_community_filter(struct peer *peer, struct attr *attr) |
1206 | { | |
1207 | if (attr->community) { | |
1208 | /* NO_ADVERTISE check. */ | |
1209 | if (community_include(attr->community, COMMUNITY_NO_ADVERTISE)) | |
1210 | return 1; | |
1211 | ||
1212 | /* NO_EXPORT check. */ | |
1213 | if (peer->sort == BGP_PEER_EBGP | |
1214 | && community_include(attr->community, COMMUNITY_NO_EXPORT)) | |
1215 | return 1; | |
1216 | ||
1217 | /* NO_EXPORT_SUBCONFED check. */ | |
1218 | if (peer->sort == BGP_PEER_EBGP | |
1219 | || peer->sort == BGP_PEER_CONFED) | |
1220 | if (community_include(attr->community, | |
1221 | COMMUNITY_NO_EXPORT_SUBCONFED)) | |
1222 | return 1; | |
1223 | } | |
1224 | return 0; | |
718e3744 | 1225 | } |
1226 | ||
1227 | /* Route reflection loop check. */ | |
d62a17ae | 1228 | static int bgp_cluster_filter(struct peer *peer, struct attr *attr) |
718e3744 | 1229 | { |
d62a17ae | 1230 | struct in_addr cluster_id; |
718e3744 | 1231 | |
d62a17ae | 1232 | if (attr->cluster) { |
1233 | if (peer->bgp->config & BGP_CONFIG_CLUSTER_ID) | |
1234 | cluster_id = peer->bgp->cluster_id; | |
1235 | else | |
1236 | cluster_id = peer->bgp->router_id; | |
1237 | ||
1238 | if (cluster_loop_check(attr->cluster, cluster_id)) | |
1239 | return 1; | |
1240 | } | |
1241 | return 0; | |
718e3744 | 1242 | } |
6b0655a2 | 1243 | |
d62a17ae | 1244 | static int bgp_input_modifier(struct peer *peer, struct prefix *p, |
1245 | struct attr *attr, afi_t afi, safi_t safi, | |
82b692c0 LK |
1246 | const char *rmap_name, mpls_label_t *label, |
1247 | uint32_t num_labels) | |
718e3744 | 1248 | { |
d62a17ae | 1249 | struct bgp_filter *filter; |
82b692c0 LK |
1250 | struct bgp_path_info rmap_path = { 0 }; |
1251 | struct bgp_path_info_extra extra = { 0 }; | |
d62a17ae | 1252 | route_map_result_t ret; |
1253 | struct route_map *rmap = NULL; | |
718e3744 | 1254 | |
d62a17ae | 1255 | filter = &peer->filter[afi][safi]; |
718e3744 | 1256 | |
d62a17ae | 1257 | /* Apply default weight value. */ |
1258 | if (peer->weight[afi][safi]) | |
1259 | attr->weight = peer->weight[afi][safi]; | |
718e3744 | 1260 | |
d62a17ae | 1261 | if (rmap_name) { |
1262 | rmap = route_map_lookup_by_name(rmap_name); | |
98a4a44e | 1263 | |
d62a17ae | 1264 | if (rmap == NULL) |
1265 | return RMAP_DENY; | |
1266 | } else { | |
1267 | if (ROUTE_MAP_IN_NAME(filter)) { | |
1268 | rmap = ROUTE_MAP_IN(filter); | |
98a4a44e | 1269 | |
d62a17ae | 1270 | if (rmap == NULL) |
1271 | return RMAP_DENY; | |
1272 | } | |
1273 | } | |
0b16f239 | 1274 | |
d62a17ae | 1275 | /* Route map apply. */ |
1276 | if (rmap) { | |
40381db7 | 1277 | memset(&rmap_path, 0, sizeof(struct bgp_path_info)); |
d62a17ae | 1278 | /* Duplicate current value to new strucutre for modification. */ |
40381db7 DS |
1279 | rmap_path.peer = peer; |
1280 | rmap_path.attr = attr; | |
82b692c0 LK |
1281 | rmap_path.extra = &extra; |
1282 | extra.num_labels = num_labels; | |
1283 | if (label && num_labels && num_labels <= BGP_MAX_LABELS) | |
1284 | memcpy(extra.label, label, | |
1285 | num_labels * sizeof(mpls_label_t)); | |
718e3744 | 1286 | |
d62a17ae | 1287 | SET_FLAG(peer->rmap_type, PEER_RMAP_TYPE_IN); |
ac41b2a2 | 1288 | |
d62a17ae | 1289 | /* Apply BGP route map to the attribute. */ |
40381db7 | 1290 | ret = route_map_apply(rmap, p, RMAP_BGP, &rmap_path); |
0b16f239 | 1291 | |
d62a17ae | 1292 | peer->rmap_type = 0; |
0b16f239 | 1293 | |
1f2263be | 1294 | if (ret == RMAP_DENYMATCH) |
d62a17ae | 1295 | return RMAP_DENY; |
0b16f239 | 1296 | } |
d62a17ae | 1297 | return RMAP_PERMIT; |
0b16f239 DS |
1298 | } |
1299 | ||
d62a17ae | 1300 | static int bgp_output_modifier(struct peer *peer, struct prefix *p, |
1301 | struct attr *attr, afi_t afi, safi_t safi, | |
1302 | const char *rmap_name) | |
0b16f239 | 1303 | { |
40381db7 | 1304 | struct bgp_path_info rmap_path; |
d62a17ae | 1305 | route_map_result_t ret; |
1306 | struct route_map *rmap = NULL; | |
d7c0a89a | 1307 | uint8_t rmap_type; |
0b16f239 | 1308 | |
b787157a DS |
1309 | /* |
1310 | * So if we get to this point and have no rmap_name | |
1311 | * we want to just show the output as it currently | |
1312 | * exists. | |
1313 | */ | |
1314 | if (!rmap_name) | |
1315 | return RMAP_PERMIT; | |
0b16f239 | 1316 | |
d62a17ae | 1317 | /* Apply default weight value. */ |
1318 | if (peer->weight[afi][safi]) | |
1319 | attr->weight = peer->weight[afi][safi]; | |
0b16f239 | 1320 | |
b787157a | 1321 | rmap = route_map_lookup_by_name(rmap_name); |
98a4a44e | 1322 | |
b787157a DS |
1323 | /* |
1324 | * If we have a route map name and we do not find | |
1325 | * the routemap that means we have an implicit | |
1326 | * deny. | |
1327 | */ | |
1328 | if (rmap == NULL) | |
1329 | return RMAP_DENY; | |
0b16f239 | 1330 | |
40381db7 | 1331 | memset(&rmap_path, 0, sizeof(struct bgp_path_info)); |
d62a17ae | 1332 | /* Route map apply. */ |
b787157a | 1333 | /* Duplicate current value to new strucutre for modification. */ |
40381db7 DS |
1334 | rmap_path.peer = peer; |
1335 | rmap_path.attr = attr; | |
0b16f239 | 1336 | |
0f672529 | 1337 | rmap_type = peer->rmap_type; |
b787157a | 1338 | SET_FLAG(peer->rmap_type, PEER_RMAP_TYPE_OUT); |
0b16f239 | 1339 | |
b787157a | 1340 | /* Apply BGP route map to the attribute. */ |
40381db7 | 1341 | ret = route_map_apply(rmap, p, RMAP_BGP, &rmap_path); |
ac41b2a2 | 1342 | |
0f672529 | 1343 | peer->rmap_type = rmap_type; |
b787157a DS |
1344 | |
1345 | if (ret == RMAP_DENYMATCH) | |
1346 | /* | |
1347 | * caller has multiple error paths with bgp_attr_flush() | |
1348 | */ | |
1349 | return RMAP_DENY; | |
ac41b2a2 | 1350 | |
d62a17ae | 1351 | return RMAP_PERMIT; |
718e3744 | 1352 | } |
6b0655a2 | 1353 | |
5000f21c | 1354 | /* If this is an EBGP peer with remove-private-AS */ |
d62a17ae | 1355 | static void bgp_peer_remove_private_as(struct bgp *bgp, afi_t afi, safi_t safi, |
1356 | struct peer *peer, struct attr *attr) | |
1357 | { | |
1358 | if (peer->sort == BGP_PEER_EBGP | |
1359 | && (peer_af_flag_check(peer, afi, safi, | |
1360 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE) | |
1361 | || peer_af_flag_check(peer, afi, safi, | |
1362 | PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE) | |
1363 | || peer_af_flag_check(peer, afi, safi, | |
1364 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL) | |
1365 | || peer_af_flag_check(peer, afi, safi, | |
1366 | PEER_FLAG_REMOVE_PRIVATE_AS))) { | |
1367 | // Take action on the entire aspath | |
1368 | if (peer_af_flag_check(peer, afi, safi, | |
1369 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE) | |
1370 | || peer_af_flag_check(peer, afi, safi, | |
1371 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL)) { | |
1372 | if (peer_af_flag_check( | |
1373 | peer, afi, safi, | |
1374 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)) | |
1375 | attr->aspath = aspath_replace_private_asns( | |
bf26b80e | 1376 | attr->aspath, bgp->as, peer->as); |
d62a17ae | 1377 | |
1378 | // The entire aspath consists of private ASNs so create | |
1379 | // an empty aspath | |
1380 | else if (aspath_private_as_check(attr->aspath)) | |
1381 | attr->aspath = aspath_empty_get(); | |
1382 | ||
1383 | // There are some public and some private ASNs, remove | |
1384 | // the private ASNs | |
1385 | else | |
1386 | attr->aspath = aspath_remove_private_asns( | |
bf26b80e | 1387 | attr->aspath, peer->as); |
d62a17ae | 1388 | } |
1389 | ||
1390 | // 'all' was not specified so the entire aspath must be private | |
1391 | // ASNs | |
1392 | // for us to do anything | |
1393 | else if (aspath_private_as_check(attr->aspath)) { | |
1394 | if (peer_af_flag_check( | |
1395 | peer, afi, safi, | |
1396 | PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE)) | |
1397 | attr->aspath = aspath_replace_private_asns( | |
bf26b80e | 1398 | attr->aspath, bgp->as, peer->as); |
d62a17ae | 1399 | else |
1400 | attr->aspath = aspath_empty_get(); | |
1401 | } | |
1402 | } | |
5000f21c DS |
1403 | } |
1404 | ||
c7122e14 | 1405 | /* If this is an EBGP peer with as-override */ |
d62a17ae | 1406 | static void bgp_peer_as_override(struct bgp *bgp, afi_t afi, safi_t safi, |
1407 | struct peer *peer, struct attr *attr) | |
1408 | { | |
1409 | if (peer->sort == BGP_PEER_EBGP | |
1410 | && peer_af_flag_check(peer, afi, safi, PEER_FLAG_AS_OVERRIDE)) { | |
1411 | if (aspath_single_asn_check(attr->aspath, peer->as)) | |
1412 | attr->aspath = aspath_replace_specific_asn( | |
1413 | attr->aspath, peer->as, bgp->as); | |
1414 | } | |
1415 | } | |
1416 | ||
7f323236 DW |
1417 | void bgp_attr_add_gshut_community(struct attr *attr) |
1418 | { | |
1419 | struct community *old; | |
1420 | struct community *new; | |
1421 | struct community *merge; | |
1422 | struct community *gshut; | |
1423 | ||
1424 | old = attr->community; | |
1425 | gshut = community_str2com("graceful-shutdown"); | |
1426 | ||
990f4f91 | 1427 | assert(gshut); |
1428 | ||
7f323236 DW |
1429 | if (old) { |
1430 | merge = community_merge(community_dup(old), gshut); | |
1431 | ||
a4d82a8a | 1432 | if (old->refcnt == 0) |
3c1f53de | 1433 | community_free(&old); |
7f323236 DW |
1434 | |
1435 | new = community_uniq_sort(merge); | |
3c1f53de | 1436 | community_free(&merge); |
7f323236 DW |
1437 | } else { |
1438 | new = community_dup(gshut); | |
1439 | } | |
1440 | ||
3c1f53de | 1441 | community_free(&gshut); |
7f323236 DW |
1442 | attr->community = new; |
1443 | attr->flag |= ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES); | |
1444 | ||
1445 | /* When we add the graceful-shutdown community we must also | |
1446 | * lower the local-preference */ | |
1447 | attr->flag |= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF); | |
1448 | attr->local_pref = BGP_GSHUT_LOCAL_PREF; | |
1449 | } | |
1450 | ||
1451 | ||
d7c0a89a | 1452 | static void subgroup_announce_reset_nhop(uint8_t family, struct attr *attr) |
c7122e14 | 1453 | { |
960035b2 | 1454 | if (family == AF_INET) { |
d62a17ae | 1455 | attr->nexthop.s_addr = 0; |
960035b2 PZ |
1456 | attr->mp_nexthop_global_in.s_addr = 0; |
1457 | } | |
d62a17ae | 1458 | if (family == AF_INET6) |
1459 | memset(&attr->mp_nexthop_global, 0, IPV6_MAX_BYTELEN); | |
ace295a9 MK |
1460 | if (family == AF_EVPN) |
1461 | memset(&attr->mp_nexthop_global_in, 0, BGP_ATTR_NHLEN_IPV4); | |
c7122e14 DS |
1462 | } |
1463 | ||
40381db7 | 1464 | int subgroup_announce_check(struct bgp_node *rn, struct bgp_path_info *pi, |
d62a17ae | 1465 | struct update_subgroup *subgrp, struct prefix *p, |
1466 | struct attr *attr) | |
1467 | { | |
1468 | struct bgp_filter *filter; | |
1469 | struct peer *from; | |
1470 | struct peer *peer; | |
1471 | struct peer *onlypeer; | |
1472 | struct bgp *bgp; | |
40381db7 | 1473 | struct attr *piattr; |
d62a17ae | 1474 | char buf[PREFIX_STRLEN]; |
b68885f9 | 1475 | route_map_result_t ret; |
d62a17ae | 1476 | int transparent; |
1477 | int reflect; | |
1478 | afi_t afi; | |
1479 | safi_t safi; | |
1480 | int samepeer_safe = 0; /* for synthetic mplsvpns routes */ | |
1481 | ||
1482 | if (DISABLE_BGP_ANNOUNCE) | |
1483 | return 0; | |
1484 | ||
1485 | afi = SUBGRP_AFI(subgrp); | |
1486 | safi = SUBGRP_SAFI(subgrp); | |
1487 | peer = SUBGRP_PEER(subgrp); | |
1488 | onlypeer = NULL; | |
1489 | if (CHECK_FLAG(peer->flags, PEER_FLAG_LONESOUL)) | |
1490 | onlypeer = SUBGRP_PFIRST(subgrp)->peer; | |
1491 | ||
40381db7 | 1492 | from = pi->peer; |
d62a17ae | 1493 | filter = &peer->filter[afi][safi]; |
1494 | bgp = SUBGRP_INST(subgrp); | |
40381db7 DS |
1495 | piattr = bgp_path_info_mpath_count(pi) ? bgp_path_info_mpath_attr(pi) |
1496 | : pi->attr; | |
3f9c7369 | 1497 | |
65efcfce | 1498 | #if ENABLE_BGP_VNC |
d62a17ae | 1499 | if (((afi == AFI_IP) || (afi == AFI_IP6)) && (safi == SAFI_MPLS_VPN) |
40381db7 DS |
1500 | && ((pi->type == ZEBRA_ROUTE_BGP_DIRECT) |
1501 | || (pi->type == ZEBRA_ROUTE_BGP_DIRECT_EXT))) { | |
d62a17ae | 1502 | |
1503 | /* | |
1504 | * direct and direct_ext type routes originate internally even | |
1505 | * though they can have peer pointers that reference other | |
1506 | * systems | |
1507 | */ | |
1508 | prefix2str(p, buf, PREFIX_STRLEN); | |
1509 | zlog_debug("%s: pfx %s bgp_direct->vpn route peer safe", | |
1510 | __func__, buf); | |
1511 | samepeer_safe = 1; | |
1512 | } | |
65efcfce LB |
1513 | #endif |
1514 | ||
ddb5b488 PZ |
1515 | if (((afi == AFI_IP) || (afi == AFI_IP6)) |
1516 | && ((safi == SAFI_MPLS_VPN) || (safi == SAFI_UNICAST)) | |
40381db7 DS |
1517 | && (pi->type == ZEBRA_ROUTE_BGP) |
1518 | && (pi->sub_type == BGP_ROUTE_IMPORTED)) { | |
ddb5b488 PZ |
1519 | |
1520 | /* Applies to routes leaked vpn->vrf and vrf->vpn */ | |
1521 | ||
1522 | samepeer_safe = 1; | |
1523 | } | |
1524 | ||
d62a17ae | 1525 | /* With addpath we may be asked to TX all kinds of paths so make sure |
40381db7 DS |
1526 | * pi is valid */ |
1527 | if (!CHECK_FLAG(pi->flags, BGP_PATH_VALID) | |
1528 | || CHECK_FLAG(pi->flags, BGP_PATH_HISTORY) | |
1529 | || CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) { | |
d62a17ae | 1530 | return 0; |
1531 | } | |
adbac85e | 1532 | |
d62a17ae | 1533 | /* If this is not the bestpath then check to see if there is an enabled |
1534 | * addpath | |
1535 | * feature that requires us to advertise it */ | |
40381db7 | 1536 | if (!CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) { |
dcc68b5e | 1537 | if (!bgp_addpath_tx_path(peer->addpath_type[afi][safi], pi)) { |
d62a17ae | 1538 | return 0; |
1539 | } | |
1540 | } | |
06370dac | 1541 | |
d62a17ae | 1542 | /* Aggregate-address suppress check. */ |
40381db7 | 1543 | if (pi->extra && pi->extra->suppress) |
d62a17ae | 1544 | if (!UNSUPPRESS_MAP_NAME(filter)) { |
1545 | return 0; | |
1546 | } | |
3f9c7369 | 1547 | |
13b7e7f0 DS |
1548 | /* |
1549 | * If we are doing VRF 2 VRF leaking via the import | |
1550 | * statement, we want to prevent the route going | |
1551 | * off box as that the RT and RD created are localy | |
1552 | * significant and globaly useless. | |
1553 | */ | |
40381db7 DS |
1554 | if (safi == SAFI_MPLS_VPN && pi->extra && pi->extra->num_labels |
1555 | && pi->extra->label[0] == BGP_PREVENT_VRF_2_VRF_LEAK) | |
13b7e7f0 DS |
1556 | return 0; |
1557 | ||
d62a17ae | 1558 | /* If it's labeled safi, make sure the route has a valid label. */ |
1559 | if (safi == SAFI_LABELED_UNICAST) { | |
40381db7 | 1560 | mpls_label_t label = bgp_adv_label(rn, pi, peer, afi, safi); |
d62a17ae | 1561 | if (!bgp_is_valid_label(&label)) { |
1562 | if (bgp_debug_update(NULL, p, subgrp->update_group, 0)) | |
1563 | zlog_debug("u%" PRIu64 ":s%" PRIu64 | |
1564 | " %s/%d is filtered - no label (%p)", | |
1565 | subgrp->update_group->id, subgrp->id, | |
1566 | inet_ntop(p->family, &p->u.prefix, | |
1567 | buf, SU_ADDRSTRLEN), | |
1568 | p->prefixlen, &label); | |
1569 | return 0; | |
1570 | } | |
1571 | } | |
cd1964ff | 1572 | |
d62a17ae | 1573 | /* Do not send back route to sender. */ |
1574 | if (onlypeer && from == onlypeer) { | |
1575 | return 0; | |
1576 | } | |
3f9c7369 | 1577 | |
d62a17ae | 1578 | /* Do not send the default route in the BGP table if the neighbor is |
1579 | * configured for default-originate */ | |
1580 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
1581 | PEER_FLAG_DEFAULT_ORIGINATE)) { | |
1582 | if (p->family == AF_INET && p->u.prefix4.s_addr == INADDR_ANY) | |
1583 | return 0; | |
1584 | else if (p->family == AF_INET6 && p->prefixlen == 0) | |
1585 | return 0; | |
1586 | } | |
4125bb67 | 1587 | |
d62a17ae | 1588 | /* Transparency check. */ |
1589 | if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_RSERVER_CLIENT) | |
1590 | && CHECK_FLAG(from->af_flags[afi][safi], PEER_FLAG_RSERVER_CLIENT)) | |
1591 | transparent = 1; | |
1592 | else | |
1593 | transparent = 0; | |
1594 | ||
1595 | /* If community is not disabled check the no-export and local. */ | |
40381db7 | 1596 | if (!transparent && bgp_community_filter(peer, piattr)) { |
d62a17ae | 1597 | if (bgp_debug_update(NULL, p, subgrp->update_group, 0)) |
1598 | zlog_debug( | |
1599 | "subgrpannouncecheck: community filter check fail"); | |
1600 | return 0; | |
1601 | } | |
3f9c7369 | 1602 | |
d62a17ae | 1603 | /* If the attribute has originator-id and it is same as remote |
1604 | peer's id. */ | |
40381db7 DS |
1605 | if (onlypeer && piattr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID) |
1606 | && (IPV4_ADDR_SAME(&onlypeer->remote_id, &piattr->originator_id))) { | |
d62a17ae | 1607 | if (bgp_debug_update(NULL, p, subgrp->update_group, 0)) |
1608 | zlog_debug( | |
1609 | "%s [Update:SEND] %s originator-id is same as " | |
1610 | "remote router-id", | |
1611 | onlypeer->host, | |
1612 | prefix2str(p, buf, sizeof(buf))); | |
1613 | return 0; | |
1614 | } | |
3f9c7369 | 1615 | |
d62a17ae | 1616 | /* ORF prefix-list filter check */ |
1617 | if (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_ADV) | |
1618 | && (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_RCV) | |
1619 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
1620 | PEER_CAP_ORF_PREFIX_SM_OLD_RCV))) | |
1621 | if (peer->orf_plist[afi][safi]) { | |
1622 | if (prefix_list_apply(peer->orf_plist[afi][safi], p) | |
1623 | == PREFIX_DENY) { | |
1624 | if (bgp_debug_update(NULL, p, | |
1625 | subgrp->update_group, 0)) | |
1626 | zlog_debug( | |
1627 | "%s [Update:SEND] %s is filtered via ORF", | |
1628 | peer->host, | |
1629 | prefix2str(p, buf, | |
1630 | sizeof(buf))); | |
1631 | return 0; | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | /* Output filter check. */ | |
40381db7 | 1636 | if (bgp_output_filter(peer, p, piattr, afi, safi) == FILTER_DENY) { |
d62a17ae | 1637 | if (bgp_debug_update(NULL, p, subgrp->update_group, 0)) |
1638 | zlog_debug("%s [Update:SEND] %s is filtered", | |
1639 | peer->host, prefix2str(p, buf, sizeof(buf))); | |
1640 | return 0; | |
1641 | } | |
3f9c7369 DS |
1642 | |
1643 | #ifdef BGP_SEND_ASPATH_CHECK | |
d62a17ae | 1644 | /* AS path loop check. */ |
40381db7 | 1645 | if (onlypeer && aspath_loop_check(piattr->aspath, onlypeer->as)) { |
d62a17ae | 1646 | if (bgp_debug_update(NULL, p, subgrp->update_group, 0)) |
1647 | zlog_debug( | |
1648 | "%s [Update:SEND] suppress announcement to peer AS %u " | |
1649 | "that is part of AS path.", | |
1650 | onlypeer->host, onlypeer->as); | |
1651 | return 0; | |
1652 | } | |
3f9c7369 DS |
1653 | #endif /* BGP_SEND_ASPATH_CHECK */ |
1654 | ||
d62a17ae | 1655 | /* If we're a CONFED we need to loop check the CONFED ID too */ |
1656 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
40381db7 | 1657 | if (aspath_loop_check(piattr->aspath, bgp->confed_id)) { |
d62a17ae | 1658 | if (bgp_debug_update(NULL, p, subgrp->update_group, 0)) |
1659 | zlog_debug( | |
1660 | "%s [Update:SEND] suppress announcement to peer AS %u" | |
1661 | " is AS path.", | |
1662 | peer->host, bgp->confed_id); | |
1663 | return 0; | |
1664 | } | |
3f9c7369 | 1665 | } |
3f9c7369 | 1666 | |
d62a17ae | 1667 | /* Route-Reflect check. */ |
1668 | if (from->sort == BGP_PEER_IBGP && peer->sort == BGP_PEER_IBGP) | |
1669 | reflect = 1; | |
1670 | else | |
1671 | reflect = 0; | |
1672 | ||
1673 | /* IBGP reflection check. */ | |
1674 | if (reflect && !samepeer_safe) { | |
1675 | /* A route from a Client peer. */ | |
1676 | if (CHECK_FLAG(from->af_flags[afi][safi], | |
1677 | PEER_FLAG_REFLECTOR_CLIENT)) { | |
1678 | /* Reflect to all the Non-Client peers and also to the | |
1679 | Client peers other than the originator. Originator | |
1680 | check | |
1681 | is already done. So there is noting to do. */ | |
1682 | /* no bgp client-to-client reflection check. */ | |
1683 | if (bgp_flag_check(bgp, BGP_FLAG_NO_CLIENT_TO_CLIENT)) | |
1684 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
1685 | PEER_FLAG_REFLECTOR_CLIENT)) | |
1686 | return 0; | |
1687 | } else { | |
1688 | /* A route from a Non-client peer. Reflect to all other | |
1689 | clients. */ | |
1690 | if (!CHECK_FLAG(peer->af_flags[afi][safi], | |
1691 | PEER_FLAG_REFLECTOR_CLIENT)) | |
1692 | return 0; | |
1693 | } | |
1694 | } | |
3f9c7369 | 1695 | |
d62a17ae | 1696 | /* For modify attribute, copy it to temporary structure. */ |
40381db7 | 1697 | bgp_attr_dup(attr, piattr); |
d62a17ae | 1698 | |
1699 | /* If local-preference is not set. */ | |
1700 | if ((peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED) | |
1701 | && (!(attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)))) { | |
1702 | attr->flag |= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF); | |
1703 | attr->local_pref = bgp->default_local_pref; | |
3f9c7369 | 1704 | } |
3f9c7369 | 1705 | |
d62a17ae | 1706 | /* If originator-id is not set and the route is to be reflected, |
1707 | set the originator id */ | |
1708 | if (reflect | |
1709 | && (!(attr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)))) { | |
1710 | IPV4_ADDR_COPY(&(attr->originator_id), &(from->remote_id)); | |
1711 | SET_FLAG(attr->flag, BGP_ATTR_ORIGINATOR_ID); | |
1712 | } | |
3f9c7369 | 1713 | |
d62a17ae | 1714 | /* Remove MED if its an EBGP peer - will get overwritten by route-maps |
1715 | */ | |
1716 | if (peer->sort == BGP_PEER_EBGP | |
1717 | && attr->flag & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)) { | |
1718 | if (from != bgp->peer_self && !transparent | |
1719 | && !CHECK_FLAG(peer->af_flags[afi][safi], | |
1720 | PEER_FLAG_MED_UNCHANGED)) | |
1721 | attr->flag &= | |
1722 | ~(ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)); | |
1723 | } | |
3f9c7369 | 1724 | |
d62a17ae | 1725 | /* Since the nexthop attribute can vary per peer, it is not explicitly |
1726 | * set | |
1727 | * in announce check, only certain flags and length (or number of | |
1728 | * nexthops | |
1729 | * -- for IPv6/MP_REACH) are set here in order to guide the update | |
1730 | * formation | |
1731 | * code in setting the nexthop(s) on a per peer basis in | |
1732 | * reformat_peer(). | |
1733 | * Typically, the source nexthop in the attribute is preserved but in | |
1734 | * the | |
1735 | * scenarios where we know it will always be overwritten, we reset the | |
1736 | * nexthop to "0" in an attempt to achieve better Update packing. An | |
1737 | * example of this is when a prefix from each of 2 IBGP peers needs to | |
1738 | * be | |
1739 | * announced to an EBGP peer (and they have the same attributes barring | |
1740 | * their nexthop). | |
1741 | */ | |
1742 | if (reflect) | |
1743 | SET_FLAG(attr->rmap_change_flags, BATTR_REFLECTED); | |
1744 | ||
1745 | #define NEXTHOP_IS_V6 \ | |
1746 | ((safi != SAFI_ENCAP && safi != SAFI_MPLS_VPN \ | |
1747 | && (p->family == AF_INET6 || peer_cap_enhe(peer, afi, safi))) \ | |
1748 | || ((safi == SAFI_ENCAP || safi == SAFI_MPLS_VPN) \ | |
1749 | && attr->mp_nexthop_len >= IPV6_MAX_BYTELEN)) | |
1750 | ||
1751 | /* IPv6/MP starts with 1 nexthop. The link-local address is passed only | |
1752 | * if | |
1753 | * the peer (group) is configured to receive link-local nexthop | |
1754 | * unchanged | |
1755 | * and it is available in the prefix OR we're not reflecting the route | |
1756 | * and | |
1757 | * the peer (group) to whom we're going to announce is on a shared | |
1758 | * network | |
1759 | * and this is either a self-originated route or the peer is EBGP. | |
1760 | */ | |
1761 | if (NEXTHOP_IS_V6) { | |
1762 | attr->mp_nexthop_len = BGP_ATTR_NHLEN_IPV6_GLOBAL; | |
1763 | if ((CHECK_FLAG(peer->af_flags[afi][safi], | |
1764 | PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED) | |
1765 | && IN6_IS_ADDR_LINKLOCAL(&attr->mp_nexthop_local)) | |
1766 | || (!reflect && peer->shared_network | |
1767 | && (from == bgp->peer_self | |
1768 | || peer->sort == BGP_PEER_EBGP))) { | |
1769 | attr->mp_nexthop_len = | |
1770 | BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL; | |
1771 | } | |
3f9c7369 | 1772 | |
d62a17ae | 1773 | /* Clear off link-local nexthop in source, whenever it is not |
1774 | * needed to | |
1775 | * ensure more prefixes share the same attribute for | |
1776 | * announcement. | |
1777 | */ | |
1778 | if (!(CHECK_FLAG(peer->af_flags[afi][safi], | |
1779 | PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED))) | |
1780 | memset(&attr->mp_nexthop_local, 0, IPV6_MAX_BYTELEN); | |
1781 | } | |
3f9c7369 | 1782 | |
d62a17ae | 1783 | bgp_peer_remove_private_as(bgp, afi, safi, peer, attr); |
1784 | bgp_peer_as_override(bgp, afi, safi, peer, attr); | |
1785 | ||
1786 | /* Route map & unsuppress-map apply. */ | |
40381db7 DS |
1787 | if (ROUTE_MAP_OUT_NAME(filter) || (pi->extra && pi->extra->suppress)) { |
1788 | struct bgp_path_info rmap_path; | |
1789 | struct bgp_path_info_extra dummy_rmap_path_extra; | |
d62a17ae | 1790 | struct attr dummy_attr; |
1791 | ||
40381db7 DS |
1792 | memset(&rmap_path, 0, sizeof(struct bgp_path_info)); |
1793 | rmap_path.peer = peer; | |
1794 | rmap_path.attr = attr; | |
d37ba549 | 1795 | |
40381db7 DS |
1796 | if (pi->extra) { |
1797 | memcpy(&dummy_rmap_path_extra, pi->extra, | |
4b7e6066 | 1798 | sizeof(struct bgp_path_info_extra)); |
40381db7 | 1799 | rmap_path.extra = &dummy_rmap_path_extra; |
16f7ce2b MK |
1800 | } |
1801 | ||
d62a17ae | 1802 | /* don't confuse inbound and outbound setting */ |
1803 | RESET_FLAG(attr->rmap_change_flags); | |
1804 | ||
1805 | /* | |
1806 | * The route reflector is not allowed to modify the attributes | |
1807 | * of the reflected IBGP routes unless explicitly allowed. | |
1808 | */ | |
1809 | if ((from->sort == BGP_PEER_IBGP && peer->sort == BGP_PEER_IBGP) | |
1810 | && !bgp_flag_check(bgp, | |
1811 | BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY)) { | |
1812 | bgp_attr_dup(&dummy_attr, attr); | |
40381db7 | 1813 | rmap_path.attr = &dummy_attr; |
d62a17ae | 1814 | } |
3f9c7369 | 1815 | |
d62a17ae | 1816 | SET_FLAG(peer->rmap_type, PEER_RMAP_TYPE_OUT); |
3f9c7369 | 1817 | |
40381db7 | 1818 | if (pi->extra && pi->extra->suppress) |
d62a17ae | 1819 | ret = route_map_apply(UNSUPPRESS_MAP(filter), p, |
40381db7 | 1820 | RMAP_BGP, &rmap_path); |
d62a17ae | 1821 | else |
1822 | ret = route_map_apply(ROUTE_MAP_OUT(filter), p, | |
40381db7 | 1823 | RMAP_BGP, &rmap_path); |
d62a17ae | 1824 | |
1825 | peer->rmap_type = 0; | |
1826 | ||
1827 | if (ret == RMAP_DENYMATCH) { | |
778048bf AD |
1828 | if (bgp_debug_update(NULL, p, subgrp->update_group, 0)) |
1829 | zlog_debug("%s [Update:SEND] %s is filtered by route-map", | |
1830 | peer->host, prefix2str(p, buf, sizeof(buf))); | |
1831 | ||
d62a17ae | 1832 | bgp_attr_flush(attr); |
1833 | return 0; | |
1834 | } | |
3f9c7369 | 1835 | } |
3f9c7369 | 1836 | |
9dac9fc8 DA |
1837 | /* RFC 8212 to prevent route leaks. |
1838 | * This specification intends to improve this situation by requiring the | |
1839 | * explicit configuration of both BGP Import and Export Policies for any | |
1840 | * External BGP (EBGP) session such as customers, peers, or | |
1841 | * confederation boundaries for all enabled address families. Through | |
1842 | * codification of the aforementioned requirement, operators will | |
1843 | * benefit from consistent behavior across different BGP | |
1844 | * implementations. | |
1845 | */ | |
1846 | if (peer->bgp->ebgp_requires_policy | |
1847 | == DEFAULT_EBGP_POLICY_ENABLED) | |
1848 | if (!bgp_outbound_policy_exists(peer, filter)) | |
1849 | return 0; | |
1850 | ||
7f323236 | 1851 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) { |
a4d82a8a PZ |
1852 | if (peer->sort == BGP_PEER_IBGP |
1853 | || peer->sort == BGP_PEER_CONFED) { | |
7f323236 DW |
1854 | attr->flag |= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF); |
1855 | attr->local_pref = BGP_GSHUT_LOCAL_PREF; | |
1856 | } else { | |
1857 | bgp_attr_add_gshut_community(attr); | |
1858 | } | |
1859 | } | |
1860 | ||
d62a17ae | 1861 | /* After route-map has been applied, we check to see if the nexthop to |
1862 | * be carried in the attribute (that is used for the announcement) can | |
1863 | * be cleared off or not. We do this in all cases where we would be | |
1864 | * setting the nexthop to "ourselves". For IPv6, we only need to | |
1865 | * consider | |
1866 | * the global nexthop here; the link-local nexthop would have been | |
1867 | * cleared | |
1868 | * already, and if not, it is required by the update formation code. | |
1869 | * Also see earlier comments in this function. | |
1870 | */ | |
1871 | /* | |
1872 | * If route-map has performed some operation on the nexthop or the peer | |
1873 | * configuration says to pass it unchanged, we cannot reset the nexthop | |
1874 | * here, so only attempt to do it if these aren't true. Note that the | |
1875 | * route-map handler itself might have cleared the nexthop, if for | |
1876 | * example, | |
1877 | * it is configured as 'peer-address'. | |
1878 | */ | |
1879 | if (!bgp_rmap_nhop_changed(attr->rmap_change_flags, | |
40381db7 | 1880 | piattr->rmap_change_flags) |
d62a17ae | 1881 | && !transparent |
1882 | && !CHECK_FLAG(peer->af_flags[afi][safi], | |
1883 | PEER_FLAG_NEXTHOP_UNCHANGED)) { | |
1884 | /* We can reset the nexthop, if setting (or forcing) it to | |
1885 | * 'self' */ | |
1886 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
1887 | PEER_FLAG_NEXTHOP_SELF) | |
1888 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
1889 | PEER_FLAG_FORCE_NEXTHOP_SELF)) { | |
1890 | if (!reflect | |
1891 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
1892 | PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
1893 | subgroup_announce_reset_nhop( | |
1894 | (peer_cap_enhe(peer, afi, safi) | |
1895 | ? AF_INET6 | |
1896 | : p->family), | |
1897 | attr); | |
1898 | } else if (peer->sort == BGP_PEER_EBGP) { | |
1899 | /* Can also reset the nexthop if announcing to EBGP, but | |
1900 | * only if | |
1901 | * no peer in the subgroup is on a shared subnet. | |
1902 | * Note: 3rd party nexthop currently implemented for | |
1903 | * IPv4 only. | |
1904 | */ | |
737af885 BS |
1905 | if ((p->family == AF_INET) && |
1906 | (!bgp_subgrp_multiaccess_check_v4( | |
1907 | piattr->nexthop, | |
1908 | subgrp))) | |
d62a17ae | 1909 | subgroup_announce_reset_nhop( |
1910 | (peer_cap_enhe(peer, afi, safi) | |
a4d82a8a PZ |
1911 | ? AF_INET6 |
1912 | : p->family), | |
737af885 BS |
1913 | attr); |
1914 | ||
1915 | if ((p->family == AF_INET6) && | |
1916 | (!bgp_subgrp_multiaccess_check_v6( | |
1917 | piattr->mp_nexthop_global, | |
1918 | subgrp))) | |
1919 | subgroup_announce_reset_nhop( | |
1920 | (peer_cap_enhe(peer, afi, safi) | |
1921 | ? AF_INET6 | |
1922 | : p->family), | |
1923 | attr); | |
1924 | ||
1925 | ||
1926 | ||
40381db7 | 1927 | } else if (CHECK_FLAG(pi->flags, BGP_PATH_ANNC_NH_SELF)) { |
960035b2 PZ |
1928 | /* |
1929 | * This flag is used for leaked vpn-vrf routes | |
1930 | */ | |
1931 | int family = p->family; | |
1932 | ||
1933 | if (peer_cap_enhe(peer, afi, safi)) | |
1934 | family = AF_INET6; | |
1935 | ||
1936 | if (bgp_debug_update(NULL, p, subgrp->update_group, 0)) | |
1937 | zlog_debug( | |
1defdda8 | 1938 | "%s: BGP_PATH_ANNC_NH_SELF, family=%s", |
960035b2 PZ |
1939 | __func__, family2str(family)); |
1940 | subgroup_announce_reset_nhop(family, attr); | |
d62a17ae | 1941 | } |
960035b2 | 1942 | |
d62a17ae | 1943 | /* If IPv6/MP and nexthop does not have any override and happens |
1944 | * to | |
1945 | * be a link-local address, reset it so that we don't pass along | |
1946 | * the | |
1947 | * source's link-local IPv6 address to recipients who may not be | |
1948 | * on | |
1949 | * the same interface. | |
1950 | */ | |
1951 | if (p->family == AF_INET6 || peer_cap_enhe(peer, afi, safi)) { | |
1952 | if (IN6_IS_ADDR_LINKLOCAL(&attr->mp_nexthop_global)) | |
1953 | subgroup_announce_reset_nhop(AF_INET6, attr); | |
1954 | } | |
1955 | } | |
3f9c7369 | 1956 | |
d62a17ae | 1957 | return 1; |
3f9c7369 DS |
1958 | } |
1959 | ||
d62a17ae | 1960 | void bgp_best_selection(struct bgp *bgp, struct bgp_node *rn, |
1961 | struct bgp_maxpaths_cfg *mpath_cfg, | |
4b7e6066 DS |
1962 | struct bgp_path_info_pair *result, afi_t afi, |
1963 | safi_t safi) | |
1964 | { | |
1965 | struct bgp_path_info *new_select; | |
1966 | struct bgp_path_info *old_select; | |
40381db7 DS |
1967 | struct bgp_path_info *pi; |
1968 | struct bgp_path_info *pi1; | |
1969 | struct bgp_path_info *pi2; | |
1970 | struct bgp_path_info *nextpi = NULL; | |
d62a17ae | 1971 | int paths_eq, do_mpath, debug; |
1972 | struct list mp_list; | |
1973 | char pfx_buf[PREFIX2STR_BUFFER]; | |
1974 | char path_buf[PATH_ADDPATH_STR_BUFFER]; | |
1975 | ||
1976 | bgp_mp_list_init(&mp_list); | |
1977 | do_mpath = | |
1978 | (mpath_cfg->maxpaths_ebgp > 1 || mpath_cfg->maxpaths_ibgp > 1); | |
1979 | ||
1980 | debug = bgp_debug_bestpath(&rn->p); | |
1981 | ||
1982 | if (debug) | |
1983 | prefix2str(&rn->p, pfx_buf, sizeof(pfx_buf)); | |
1984 | ||
1985 | /* bgp deterministic-med */ | |
1986 | new_select = NULL; | |
1987 | if (bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED)) { | |
1988 | ||
1defdda8 | 1989 | /* Clear BGP_PATH_DMED_SELECTED for all paths */ |
6f94b685 DS |
1990 | for (pi1 = bgp_node_get_bgp_path_info(rn); pi1; |
1991 | pi1 = pi1->next) | |
40381db7 | 1992 | bgp_path_info_unset_flag(rn, pi1, |
18ee8310 | 1993 | BGP_PATH_DMED_SELECTED); |
d62a17ae | 1994 | |
6f94b685 DS |
1995 | for (pi1 = bgp_node_get_bgp_path_info(rn); pi1; |
1996 | pi1 = pi1->next) { | |
40381db7 | 1997 | if (CHECK_FLAG(pi1->flags, BGP_PATH_DMED_CHECK)) |
d62a17ae | 1998 | continue; |
40381db7 | 1999 | if (BGP_PATH_HOLDDOWN(pi1)) |
d62a17ae | 2000 | continue; |
ea8b2282 | 2001 | if (pi1->peer != bgp->peer_self) |
40381db7 | 2002 | if (pi1->peer->status != Established) |
d62a17ae | 2003 | continue; |
2004 | ||
40381db7 DS |
2005 | new_select = pi1; |
2006 | if (pi1->next) { | |
2007 | for (pi2 = pi1->next; pi2; pi2 = pi2->next) { | |
2008 | if (CHECK_FLAG(pi2->flags, | |
1defdda8 | 2009 | BGP_PATH_DMED_CHECK)) |
d62a17ae | 2010 | continue; |
40381db7 | 2011 | if (BGP_PATH_HOLDDOWN(pi2)) |
d62a17ae | 2012 | continue; |
ea8b2282 | 2013 | if (pi2->peer != bgp->peer_self |
d62a17ae | 2014 | && !CHECK_FLAG( |
ea8b2282 DS |
2015 | pi2->peer->sflags, |
2016 | PEER_STATUS_NSF_WAIT)) | |
40381db7 | 2017 | if (pi2->peer->status |
d62a17ae | 2018 | != Established) |
2019 | continue; | |
2020 | ||
121e245d DS |
2021 | if (!aspath_cmp_left(pi1->attr->aspath, |
2022 | pi2->attr->aspath) | |
2023 | && !aspath_cmp_left_confed( | |
40381db7 | 2024 | pi1->attr->aspath, |
121e245d DS |
2025 | pi2->attr->aspath)) |
2026 | continue; | |
d62a17ae | 2027 | |
121e245d DS |
2028 | if (bgp_path_info_cmp( |
2029 | bgp, pi2, new_select, | |
2030 | &paths_eq, mpath_cfg, debug, | |
fdf81fa0 DS |
2031 | pfx_buf, afi, safi, |
2032 | &rn->reason)) { | |
121e245d DS |
2033 | bgp_path_info_unset_flag( |
2034 | rn, new_select, | |
2035 | BGP_PATH_DMED_SELECTED); | |
2036 | new_select = pi2; | |
d62a17ae | 2037 | } |
121e245d DS |
2038 | |
2039 | bgp_path_info_set_flag( | |
2040 | rn, pi2, BGP_PATH_DMED_CHECK); | |
d62a17ae | 2041 | } |
2042 | } | |
18ee8310 DS |
2043 | bgp_path_info_set_flag(rn, new_select, |
2044 | BGP_PATH_DMED_CHECK); | |
2045 | bgp_path_info_set_flag(rn, new_select, | |
2046 | BGP_PATH_DMED_SELECTED); | |
d62a17ae | 2047 | |
2048 | if (debug) { | |
18ee8310 DS |
2049 | bgp_path_info_path_with_addpath_rx_str( |
2050 | new_select, path_buf); | |
c66faab1 | 2051 | zlog_debug("%s: %s is the bestpath from AS %u", |
d62a17ae | 2052 | pfx_buf, path_buf, |
2053 | aspath_get_first_as( | |
2054 | new_select->attr->aspath)); | |
2055 | } | |
2056 | } | |
2057 | } | |
96450faf | 2058 | |
d62a17ae | 2059 | /* Check old selected route and new selected route. */ |
2060 | old_select = NULL; | |
2061 | new_select = NULL; | |
6f94b685 DS |
2062 | for (pi = bgp_node_get_bgp_path_info(rn); |
2063 | (pi != NULL) && (nextpi = pi->next, 1); pi = nextpi) { | |
40381db7 DS |
2064 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) |
2065 | old_select = pi; | |
d62a17ae | 2066 | |
40381db7 | 2067 | if (BGP_PATH_HOLDDOWN(pi)) { |
d62a17ae | 2068 | /* reap REMOVED routes, if needs be |
2069 | * selected route must stay for a while longer though | |
2070 | */ | |
40381db7 DS |
2071 | if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED) |
2072 | && (pi != old_select)) | |
2073 | bgp_path_info_reap(rn, pi); | |
d62a17ae | 2074 | |
ddb5b488 | 2075 | if (debug) |
40381db7 DS |
2076 | zlog_debug("%s: pi %p in holddown", __func__, |
2077 | pi); | |
ddb5b488 | 2078 | |
d62a17ae | 2079 | continue; |
2080 | } | |
96450faf | 2081 | |
40381db7 DS |
2082 | if (pi->peer && pi->peer != bgp->peer_self |
2083 | && !CHECK_FLAG(pi->peer->sflags, PEER_STATUS_NSF_WAIT)) | |
2084 | if (pi->peer->status != Established) { | |
ddb5b488 PZ |
2085 | |
2086 | if (debug) | |
2087 | zlog_debug( | |
40381db7 DS |
2088 | "%s: pi %p non self peer %s not estab state", |
2089 | __func__, pi, pi->peer->host); | |
ddb5b488 | 2090 | |
d62a17ae | 2091 | continue; |
ddb5b488 | 2092 | } |
9fbdd100 | 2093 | |
d62a17ae | 2094 | if (bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) |
40381db7 DS |
2095 | && (!CHECK_FLAG(pi->flags, BGP_PATH_DMED_SELECTED))) { |
2096 | bgp_path_info_unset_flag(rn, pi, BGP_PATH_DMED_CHECK); | |
ddb5b488 | 2097 | if (debug) |
40381db7 | 2098 | zlog_debug("%s: pi %p dmed", __func__, pi); |
d62a17ae | 2099 | continue; |
2100 | } | |
9fbdd100 | 2101 | |
40381db7 | 2102 | bgp_path_info_unset_flag(rn, pi, BGP_PATH_DMED_CHECK); |
06370dac | 2103 | |
40381db7 | 2104 | if (bgp_path_info_cmp(bgp, pi, new_select, &paths_eq, mpath_cfg, |
fdf81fa0 | 2105 | debug, pfx_buf, afi, safi, &rn->reason)) { |
40381db7 | 2106 | new_select = pi; |
d62a17ae | 2107 | } |
2108 | } | |
718e3744 | 2109 | |
d62a17ae | 2110 | /* Now that we know which path is the bestpath see if any of the other |
2111 | * paths | |
2112 | * qualify as multipaths | |
2113 | */ | |
2114 | if (debug) { | |
2115 | if (new_select) | |
18ee8310 DS |
2116 | bgp_path_info_path_with_addpath_rx_str(new_select, |
2117 | path_buf); | |
d62a17ae | 2118 | else |
2119 | sprintf(path_buf, "NONE"); | |
2120 | zlog_debug( | |
2121 | "%s: After path selection, newbest is %s oldbest was %s", | |
2122 | pfx_buf, path_buf, | |
2123 | old_select ? old_select->peer->host : "NONE"); | |
96450faf | 2124 | } |
9fbdd100 | 2125 | |
d62a17ae | 2126 | if (do_mpath && new_select) { |
6f94b685 DS |
2127 | for (pi = bgp_node_get_bgp_path_info(rn); |
2128 | (pi != NULL) && (nextpi = pi->next, 1); pi = nextpi) { | |
d62a17ae | 2129 | |
2130 | if (debug) | |
18ee8310 | 2131 | bgp_path_info_path_with_addpath_rx_str( |
40381db7 | 2132 | pi, path_buf); |
d62a17ae | 2133 | |
40381db7 | 2134 | if (pi == new_select) { |
d62a17ae | 2135 | if (debug) |
2136 | zlog_debug( | |
2137 | "%s: %s is the bestpath, add to the multipath list", | |
2138 | pfx_buf, path_buf); | |
40381db7 | 2139 | bgp_mp_list_add(&mp_list, pi); |
d62a17ae | 2140 | continue; |
2141 | } | |
2142 | ||
40381db7 | 2143 | if (BGP_PATH_HOLDDOWN(pi)) |
d62a17ae | 2144 | continue; |
2145 | ||
40381db7 DS |
2146 | if (pi->peer && pi->peer != bgp->peer_self |
2147 | && !CHECK_FLAG(pi->peer->sflags, | |
d62a17ae | 2148 | PEER_STATUS_NSF_WAIT)) |
40381db7 | 2149 | if (pi->peer->status != Established) |
d62a17ae | 2150 | continue; |
2151 | ||
40381db7 | 2152 | if (!bgp_path_info_nexthop_cmp(pi, new_select)) { |
d62a17ae | 2153 | if (debug) |
2154 | zlog_debug( | |
2155 | "%s: %s has the same nexthop as the bestpath, skip it", | |
2156 | pfx_buf, path_buf); | |
2157 | continue; | |
2158 | } | |
2159 | ||
40381db7 | 2160 | bgp_path_info_cmp(bgp, pi, new_select, &paths_eq, |
fdf81fa0 DS |
2161 | mpath_cfg, debug, pfx_buf, afi, safi, |
2162 | &rn->reason); | |
d62a17ae | 2163 | |
2164 | if (paths_eq) { | |
2165 | if (debug) | |
2166 | zlog_debug( | |
2167 | "%s: %s is equivalent to the bestpath, add to the multipath list", | |
2168 | pfx_buf, path_buf); | |
40381db7 | 2169 | bgp_mp_list_add(&mp_list, pi); |
d62a17ae | 2170 | } |
2171 | } | |
2172 | } | |
fee0f4c6 | 2173 | |
18ee8310 DS |
2174 | bgp_path_info_mpath_update(rn, new_select, old_select, &mp_list, |
2175 | mpath_cfg); | |
2176 | bgp_path_info_mpath_aggregate_update(new_select, old_select); | |
d62a17ae | 2177 | bgp_mp_list_clear(&mp_list); |
96450faf | 2178 | |
dcc68b5e MS |
2179 | bgp_addpath_update_ids(bgp, rn, afi, safi); |
2180 | ||
d62a17ae | 2181 | result->old = old_select; |
2182 | result->new = new_select; | |
96450faf | 2183 | |
d62a17ae | 2184 | return; |
fee0f4c6 | 2185 | } |
2186 | ||
3f9c7369 DS |
2187 | /* |
2188 | * A new route/change in bestpath of an existing route. Evaluate the path | |
2189 | * for advertisement to the subgroup. | |
2190 | */ | |
d62a17ae | 2191 | int subgroup_process_announce_selected(struct update_subgroup *subgrp, |
4b7e6066 | 2192 | struct bgp_path_info *selected, |
d62a17ae | 2193 | struct bgp_node *rn, |
d7c0a89a | 2194 | uint32_t addpath_tx_id) |
d62a17ae | 2195 | { |
2196 | struct prefix *p; | |
2197 | struct peer *onlypeer; | |
2198 | struct attr attr; | |
2199 | afi_t afi; | |
2200 | safi_t safi; | |
adbac85e | 2201 | |
d62a17ae | 2202 | p = &rn->p; |
2203 | afi = SUBGRP_AFI(subgrp); | |
2204 | safi = SUBGRP_SAFI(subgrp); | |
2205 | onlypeer = ((SUBGRP_PCOUNT(subgrp) == 1) ? (SUBGRP_PFIRST(subgrp))->peer | |
2206 | : NULL); | |
2207 | ||
e0207895 PZ |
2208 | if (BGP_DEBUG(update, UPDATE_OUT)) { |
2209 | char buf_prefix[PREFIX_STRLEN]; | |
2210 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); | |
ddb5b488 PZ |
2211 | zlog_debug("%s: p=%s, selected=%p", __func__, buf_prefix, |
2212 | selected); | |
e0207895 PZ |
2213 | } |
2214 | ||
d62a17ae | 2215 | /* First update is deferred until ORF or ROUTE-REFRESH is received */ |
996c9314 LB |
2216 | if (onlypeer && CHECK_FLAG(onlypeer->af_sflags[afi][safi], |
2217 | PEER_STATUS_ORF_WAIT_REFRESH)) | |
d62a17ae | 2218 | return 0; |
2219 | ||
2220 | memset(&attr, 0, sizeof(struct attr)); | |
2221 | /* It's initialized in bgp_announce_check() */ | |
2222 | ||
2223 | /* Announcement to the subgroup. If the route is filtered withdraw it. | |
2224 | */ | |
2225 | if (selected) { | |
2226 | if (subgroup_announce_check(rn, selected, subgrp, p, &attr)) | |
2227 | bgp_adj_out_set_subgroup(rn, subgrp, &attr, selected); | |
2228 | else | |
2229 | bgp_adj_out_unset_subgroup(rn, subgrp, 1, | |
dcc68b5e | 2230 | addpath_tx_id); |
d62a17ae | 2231 | } |
2232 | ||
2233 | /* If selected is NULL we must withdraw the path using addpath_tx_id */ | |
2234 | else { | |
2235 | bgp_adj_out_unset_subgroup(rn, subgrp, 1, addpath_tx_id); | |
2236 | } | |
558d1fec | 2237 | |
d62a17ae | 2238 | return 0; |
200df115 | 2239 | } |
fee0f4c6 | 2240 | |
3064bf43 | 2241 | /* |
e1072051 | 2242 | * Clear IGP changed flag and attribute changed flag for a route (all paths). |
2243 | * This is called at the end of route processing. | |
3064bf43 | 2244 | */ |
d62a17ae | 2245 | void bgp_zebra_clear_route_change_flags(struct bgp_node *rn) |
3064bf43 | 2246 | { |
40381db7 | 2247 | struct bgp_path_info *pi; |
3064bf43 | 2248 | |
6f94b685 | 2249 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 | 2250 | if (BGP_PATH_HOLDDOWN(pi)) |
d62a17ae | 2251 | continue; |
40381db7 DS |
2252 | UNSET_FLAG(pi->flags, BGP_PATH_IGP_CHANGED); |
2253 | UNSET_FLAG(pi->flags, BGP_PATH_ATTR_CHANGED); | |
d62a17ae | 2254 | } |
3064bf43 | 2255 | } |
2256 | ||
2257 | /* | |
2258 | * Has the route changed from the RIB's perspective? This is invoked only | |
2259 | * if the route selection returns the same best route as earlier - to | |
2260 | * determine if we need to update zebra or not. | |
2261 | */ | |
4b7e6066 DS |
2262 | int bgp_zebra_has_route_changed(struct bgp_node *rn, |
2263 | struct bgp_path_info *selected) | |
d62a17ae | 2264 | { |
4b7e6066 | 2265 | struct bgp_path_info *mpinfo; |
d62a17ae | 2266 | |
2bb9eff4 DS |
2267 | /* If this is multipath, check all selected paths for any nexthop |
2268 | * change or attribute change. Some attribute changes (e.g., community) | |
2269 | * aren't of relevance to the RIB, but we'll update zebra to ensure | |
2270 | * we handle the case of BGP nexthop change. This is the behavior | |
2271 | * when the best path has an attribute change anyway. | |
d62a17ae | 2272 | */ |
1defdda8 DS |
2273 | if (CHECK_FLAG(selected->flags, BGP_PATH_IGP_CHANGED) |
2274 | || CHECK_FLAG(selected->flags, BGP_PATH_MULTIPATH_CHG)) | |
d62a17ae | 2275 | return 1; |
2276 | ||
2bb9eff4 DS |
2277 | /* |
2278 | * If this is multipath, check all selected paths for any nexthop change | |
d62a17ae | 2279 | */ |
18ee8310 DS |
2280 | for (mpinfo = bgp_path_info_mpath_first(selected); mpinfo; |
2281 | mpinfo = bgp_path_info_mpath_next(mpinfo)) { | |
1defdda8 DS |
2282 | if (CHECK_FLAG(mpinfo->flags, BGP_PATH_IGP_CHANGED) |
2283 | || CHECK_FLAG(mpinfo->flags, BGP_PATH_ATTR_CHANGED)) | |
d62a17ae | 2284 | return 1; |
2285 | } | |
3064bf43 | 2286 | |
d62a17ae | 2287 | /* Nothing has changed from the RIB's perspective. */ |
2288 | return 0; | |
3064bf43 | 2289 | } |
2290 | ||
d62a17ae | 2291 | struct bgp_process_queue { |
2292 | struct bgp *bgp; | |
a4d82a8a | 2293 | STAILQ_HEAD(, bgp_node) pqueue; |
aac24838 JB |
2294 | #define BGP_PROCESS_QUEUE_EOIU_MARKER (1 << 0) |
2295 | unsigned int flags; | |
2296 | unsigned int queued; | |
200df115 | 2297 | }; |
2298 | ||
3103e8d2 DS |
2299 | /* |
2300 | * old_select = The old best path | |
2301 | * new_select = the new best path | |
2302 | * | |
2303 | * if (!old_select && new_select) | |
2304 | * We are sending new information on. | |
2305 | * | |
2306 | * if (old_select && new_select) { | |
2307 | * if (new_select != old_select) | |
2308 | * We have a new best path send a change | |
2309 | * else | |
2310 | * We've received a update with new attributes that needs | |
2311 | * to be passed on. | |
2312 | * } | |
2313 | * | |
2314 | * if (old_select && !new_select) | |
2315 | * We have no eligible route that we can announce or the rn | |
2316 | * is being removed. | |
2317 | */ | |
aac24838 JB |
2318 | static void bgp_process_main_one(struct bgp *bgp, struct bgp_node *rn, |
2319 | afi_t afi, safi_t safi) | |
d62a17ae | 2320 | { |
4b7e6066 DS |
2321 | struct bgp_path_info *new_select; |
2322 | struct bgp_path_info *old_select; | |
2323 | struct bgp_path_info_pair old_and_new; | |
ddb5b488 PZ |
2324 | char pfx_buf[PREFIX2STR_BUFFER]; |
2325 | int debug = 0; | |
d62a17ae | 2326 | |
f4c713ae LB |
2327 | if (bgp_flag_check(bgp, BGP_FLAG_DELETE_IN_PROGRESS)) { |
2328 | if (rn) | |
2329 | debug = bgp_debug_bestpath(&rn->p); | |
2330 | if (debug) { | |
2331 | prefix2str(&rn->p, pfx_buf, sizeof(pfx_buf)); | |
2332 | zlog_debug( | |
2333 | "%s: bgp delete in progress, ignoring event, p=%s", | |
2334 | __func__, pfx_buf); | |
2335 | } | |
2336 | return; | |
2337 | } | |
d62a17ae | 2338 | /* Is it end of initial update? (after startup) */ |
2339 | if (!rn) { | |
2340 | quagga_timestamp(3, bgp->update_delay_zebra_resume_time, | |
2341 | sizeof(bgp->update_delay_zebra_resume_time)); | |
2342 | ||
2343 | bgp->main_zebra_update_hold = 0; | |
05c7a1cc QY |
2344 | FOREACH_AFI_SAFI (afi, safi) { |
2345 | if (bgp_fibupd_safi(safi)) | |
2346 | bgp_zebra_announce_table(bgp, afi, safi); | |
2347 | } | |
d62a17ae | 2348 | bgp->main_peers_update_hold = 0; |
2349 | ||
2350 | bgp_start_routeadv(bgp); | |
aac24838 | 2351 | return; |
d62a17ae | 2352 | } |
cb1faec9 | 2353 | |
b575a12c A |
2354 | struct prefix *p = &rn->p; |
2355 | ||
ddb5b488 PZ |
2356 | debug = bgp_debug_bestpath(&rn->p); |
2357 | if (debug) { | |
2358 | prefix2str(&rn->p, pfx_buf, sizeof(pfx_buf)); | |
2359 | zlog_debug("%s: p=%s afi=%s, safi=%s start", __func__, pfx_buf, | |
2360 | afi2str(afi), safi2str(safi)); | |
2361 | } | |
2362 | ||
d62a17ae | 2363 | /* Best path selection. */ |
2364 | bgp_best_selection(bgp, rn, &bgp->maxpaths[afi][safi], &old_and_new, | |
2365 | afi, safi); | |
2366 | old_select = old_and_new.old; | |
2367 | new_select = old_and_new.new; | |
2368 | ||
2369 | /* Do we need to allocate or free labels? | |
2370 | * Right now, since we only deal with per-prefix labels, it is not | |
57592a53 AD |
2371 | * necessary to do this upon changes to best path. Exceptions: |
2372 | * - label index has changed -> recalculate resulting label | |
2373 | * - path_info sub_type changed -> switch to/from implicit-null | |
2374 | * - no valid label (due to removed static label binding) -> get new one | |
d62a17ae | 2375 | */ |
318cac96 | 2376 | if (bgp->allocate_mpls_labels[afi][safi]) { |
d62a17ae | 2377 | if (new_select) { |
2378 | if (!old_select | |
2379 | || bgp_label_index_differs(new_select, old_select) | |
57592a53 AD |
2380 | || new_select->sub_type != old_select->sub_type |
2381 | || !bgp_is_valid_label(&rn->local_label)) { | |
2382 | /* Enforced penultimate hop popping: | |
2383 | * implicit-null for local routes, aggregate | |
2384 | * and redistributed routes | |
2385 | */ | |
d62a17ae | 2386 | if (new_select->sub_type == BGP_ROUTE_STATIC |
57592a53 AD |
2387 | || new_select->sub_type |
2388 | == BGP_ROUTE_AGGREGATE | |
2389 | || new_select->sub_type | |
2390 | == BGP_ROUTE_REDISTRIBUTE) { | |
d62a17ae | 2391 | if (CHECK_FLAG( |
2392 | rn->flags, | |
2393 | BGP_NODE_REGISTERED_FOR_LABEL)) | |
2394 | bgp_unregister_for_label(rn); | |
70e98a7f | 2395 | label_ntop(MPLS_LABEL_IMPLICIT_NULL, 1, |
d62a17ae | 2396 | &rn->local_label); |
2397 | bgp_set_valid_label(&rn->local_label); | |
2398 | } else | |
2399 | bgp_register_for_label(rn, new_select); | |
2400 | } | |
a4d82a8a PZ |
2401 | } else if (CHECK_FLAG(rn->flags, |
2402 | BGP_NODE_REGISTERED_FOR_LABEL)) { | |
d62a17ae | 2403 | bgp_unregister_for_label(rn); |
318cac96 DW |
2404 | } |
2405 | } else if (CHECK_FLAG(rn->flags, BGP_NODE_REGISTERED_FOR_LABEL)) { | |
2406 | bgp_unregister_for_label(rn); | |
d62a17ae | 2407 | } |
cd1964ff | 2408 | |
ddb5b488 PZ |
2409 | if (debug) { |
2410 | prefix2str(&rn->p, pfx_buf, sizeof(pfx_buf)); | |
2411 | zlog_debug( | |
2412 | "%s: p=%s afi=%s, safi=%s, old_select=%p, new_select=%p", | |
2413 | __func__, pfx_buf, afi2str(afi), safi2str(safi), | |
2414 | old_select, new_select); | |
2415 | } | |
2416 | ||
d62a17ae | 2417 | /* If best route remains the same and this is not due to user-initiated |
2418 | * clear, see exactly what needs to be done. | |
2419 | */ | |
d62a17ae | 2420 | if (old_select && old_select == new_select |
2421 | && !CHECK_FLAG(rn->flags, BGP_NODE_USER_CLEAR) | |
1defdda8 | 2422 | && !CHECK_FLAG(old_select->flags, BGP_PATH_ATTR_CHANGED) |
dcc68b5e | 2423 | && !bgp_addpath_is_addpath_used(&bgp->tx_addpath, afi, safi)) { |
d62a17ae | 2424 | if (bgp_zebra_has_route_changed(rn, old_select)) { |
65efcfce | 2425 | #if ENABLE_BGP_VNC |
d62a17ae | 2426 | vnc_import_bgp_add_route(bgp, p, old_select); |
2427 | vnc_import_bgp_exterior_add_route(bgp, p, old_select); | |
65efcfce | 2428 | #endif |
bb744275 | 2429 | if (bgp_fibupd_safi(safi) |
ddb5b488 PZ |
2430 | && !bgp_option_check(BGP_OPT_NO_FIB)) { |
2431 | ||
2432 | if (new_select->type == ZEBRA_ROUTE_BGP | |
2433 | && (new_select->sub_type == BGP_ROUTE_NORMAL | |
2434 | || new_select->sub_type | |
2435 | == BGP_ROUTE_IMPORTED)) | |
2436 | ||
2437 | bgp_zebra_announce(rn, p, old_select, | |
2438 | bgp, afi, safi); | |
2439 | } | |
d62a17ae | 2440 | } |
1defdda8 | 2441 | UNSET_FLAG(old_select->flags, BGP_PATH_MULTIPATH_CHG); |
d62a17ae | 2442 | bgp_zebra_clear_route_change_flags(rn); |
2443 | ||
2444 | /* If there is a change of interest to peers, reannounce the | |
2445 | * route. */ | |
1defdda8 | 2446 | if (CHECK_FLAG(old_select->flags, BGP_PATH_ATTR_CHANGED) |
d62a17ae | 2447 | || CHECK_FLAG(rn->flags, BGP_NODE_LABEL_CHANGED)) { |
2448 | group_announce_route(bgp, afi, safi, rn, new_select); | |
2449 | ||
2450 | /* unicast routes must also be annouced to | |
2451 | * labeled-unicast update-groups */ | |
2452 | if (safi == SAFI_UNICAST) | |
2453 | group_announce_route(bgp, afi, | |
2454 | SAFI_LABELED_UNICAST, rn, | |
2455 | new_select); | |
2456 | ||
1defdda8 | 2457 | UNSET_FLAG(old_select->flags, BGP_PATH_ATTR_CHANGED); |
d62a17ae | 2458 | UNSET_FLAG(rn->flags, BGP_NODE_LABEL_CHANGED); |
2459 | } | |
fee0f4c6 | 2460 | |
d62a17ae | 2461 | UNSET_FLAG(rn->flags, BGP_NODE_PROCESS_SCHEDULED); |
aac24838 | 2462 | return; |
d62a17ae | 2463 | } |
8ad7271d | 2464 | |
d62a17ae | 2465 | /* If the user did "clear ip bgp prefix x.x.x.x" this flag will be set |
2466 | */ | |
2467 | UNSET_FLAG(rn->flags, BGP_NODE_USER_CLEAR); | |
2468 | ||
2469 | /* bestpath has changed; bump version */ | |
2470 | if (old_select || new_select) { | |
2471 | bgp_bump_version(rn); | |
2472 | ||
2473 | if (!bgp->t_rmap_def_originate_eval) { | |
2474 | bgp_lock(bgp); | |
2475 | thread_add_timer( | |
2476 | bm->master, | |
2477 | update_group_refresh_default_originate_route_map, | |
2478 | bgp, RMAP_DEFAULT_ORIGINATE_EVAL_TIMER, | |
2479 | &bgp->t_rmap_def_originate_eval); | |
2480 | } | |
2481 | } | |
3f9c7369 | 2482 | |
d62a17ae | 2483 | if (old_select) |
18ee8310 | 2484 | bgp_path_info_unset_flag(rn, old_select, BGP_PATH_SELECTED); |
d62a17ae | 2485 | if (new_select) { |
ddb5b488 PZ |
2486 | if (debug) |
2487 | zlog_debug("%s: setting SELECTED flag", __func__); | |
18ee8310 DS |
2488 | bgp_path_info_set_flag(rn, new_select, BGP_PATH_SELECTED); |
2489 | bgp_path_info_unset_flag(rn, new_select, BGP_PATH_ATTR_CHANGED); | |
1defdda8 | 2490 | UNSET_FLAG(new_select->flags, BGP_PATH_MULTIPATH_CHG); |
d62a17ae | 2491 | } |
338b3424 | 2492 | |
65efcfce | 2493 | #if ENABLE_BGP_VNC |
d62a17ae | 2494 | if ((afi == AFI_IP || afi == AFI_IP6) && (safi == SAFI_UNICAST)) { |
2495 | if (old_select != new_select) { | |
2496 | if (old_select) { | |
2497 | vnc_import_bgp_exterior_del_route(bgp, p, | |
2498 | old_select); | |
2499 | vnc_import_bgp_del_route(bgp, p, old_select); | |
2500 | } | |
2501 | if (new_select) { | |
2502 | vnc_import_bgp_exterior_add_route(bgp, p, | |
2503 | new_select); | |
2504 | vnc_import_bgp_add_route(bgp, p, new_select); | |
2505 | } | |
2506 | } | |
2507 | } | |
65efcfce LB |
2508 | #endif |
2509 | ||
d62a17ae | 2510 | group_announce_route(bgp, afi, safi, rn, new_select); |
2511 | ||
2512 | /* unicast routes must also be annouced to labeled-unicast update-groups | |
2513 | */ | |
2514 | if (safi == SAFI_UNICAST) | |
2515 | group_announce_route(bgp, afi, SAFI_LABELED_UNICAST, rn, | |
2516 | new_select); | |
2517 | ||
2518 | /* FIB update. */ | |
2519 | if (bgp_fibupd_safi(safi) && (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
2520 | && !bgp_option_check(BGP_OPT_NO_FIB)) { | |
2521 | if (new_select && new_select->type == ZEBRA_ROUTE_BGP | |
2522 | && (new_select->sub_type == BGP_ROUTE_NORMAL | |
ddb5b488 | 2523 | || new_select->sub_type == BGP_ROUTE_AGGREGATE |
2b659f33 MK |
2524 | || new_select->sub_type == BGP_ROUTE_IMPORTED)) { |
2525 | ||
2526 | /* if this is an evpn imported type-5 prefix, | |
2527 | * we need to withdraw the route first to clear | |
2528 | * the nh neigh and the RMAC entry. | |
2529 | */ | |
2530 | if (old_select && | |
2531 | is_route_parent_evpn(old_select)) | |
2532 | bgp_zebra_withdraw(p, old_select, bgp, safi); | |
ddb5b488 | 2533 | |
d62a17ae | 2534 | bgp_zebra_announce(rn, p, new_select, bgp, afi, safi); |
2b659f33 | 2535 | } else { |
d62a17ae | 2536 | /* Withdraw the route from the kernel. */ |
2537 | if (old_select && old_select->type == ZEBRA_ROUTE_BGP | |
2538 | && (old_select->sub_type == BGP_ROUTE_NORMAL | |
ddb5b488 PZ |
2539 | || old_select->sub_type == BGP_ROUTE_AGGREGATE |
2540 | || old_select->sub_type == BGP_ROUTE_IMPORTED)) | |
2541 | ||
568e10ca | 2542 | bgp_zebra_withdraw(p, old_select, bgp, safi); |
d62a17ae | 2543 | } |
718e3744 | 2544 | } |
3064bf43 | 2545 | |
5424b7ba MK |
2546 | /* advertise/withdraw type-5 routes */ |
2547 | if ((afi == AFI_IP || afi == AFI_IP6) && (safi == SAFI_UNICAST)) { | |
f106e3a7 | 2548 | if (advertise_type5_routes(bgp, afi) && |
2549 | new_select && | |
2550 | is_route_injectable_into_evpn(new_select)) { | |
7e4ed18e MK |
2551 | |
2552 | /* apply the route-map */ | |
2553 | if (bgp->adv_cmd_rmap[afi][safi].map) { | |
b68885f9 | 2554 | route_map_result_t ret; |
7e4ed18e | 2555 | |
3518f352 DS |
2556 | ret = route_map_apply( |
2557 | bgp->adv_cmd_rmap[afi][safi].map, | |
2558 | &rn->p, RMAP_BGP, new_select); | |
b68885f9 | 2559 | if (ret == RMAP_PERMITMATCH) |
3518f352 DS |
2560 | bgp_evpn_advertise_type5_route( |
2561 | bgp, &rn->p, new_select->attr, | |
2562 | afi, safi); | |
c27ee4c4 | 2563 | else |
2564 | bgp_evpn_withdraw_type5_route( | |
2565 | bgp, &rn->p, afi, safi); | |
7e4ed18e MK |
2566 | } else { |
2567 | bgp_evpn_advertise_type5_route(bgp, | |
2568 | &rn->p, | |
2569 | new_select->attr, | |
2570 | afi, safi); | |
2571 | ||
2572 | } | |
f106e3a7 | 2573 | } else if (advertise_type5_routes(bgp, afi) && |
2574 | old_select && | |
2575 | is_route_injectable_into_evpn(old_select)) | |
31310b25 | 2576 | bgp_evpn_withdraw_type5_route(bgp, &rn->p, afi, safi); |
5424b7ba MK |
2577 | } |
2578 | ||
d62a17ae | 2579 | /* Clear any route change flags. */ |
2580 | bgp_zebra_clear_route_change_flags(rn); | |
3064bf43 | 2581 | |
18ee8310 | 2582 | /* Reap old select bgp_path_info, if it has been removed */ |
1defdda8 | 2583 | if (old_select && CHECK_FLAG(old_select->flags, BGP_PATH_REMOVED)) |
18ee8310 | 2584 | bgp_path_info_reap(rn, old_select); |
d62a17ae | 2585 | |
2586 | UNSET_FLAG(rn->flags, BGP_NODE_PROCESS_SCHEDULED); | |
aac24838 | 2587 | return; |
718e3744 | 2588 | } |
2589 | ||
aac24838 | 2590 | static wq_item_status bgp_process_wq(struct work_queue *wq, void *data) |
200df115 | 2591 | { |
aac24838 JB |
2592 | struct bgp_process_queue *pqnode = data; |
2593 | struct bgp *bgp = pqnode->bgp; | |
d62a17ae | 2594 | struct bgp_table *table; |
ac021f40 | 2595 | struct bgp_node *rn; |
aac24838 JB |
2596 | |
2597 | /* eoiu marker */ | |
2598 | if (CHECK_FLAG(pqnode->flags, BGP_PROCESS_QUEUE_EOIU_MARKER)) { | |
2599 | bgp_process_main_one(bgp, NULL, 0, 0); | |
60466a63 QY |
2600 | /* should always have dedicated wq call */ |
2601 | assert(STAILQ_FIRST(&pqnode->pqueue) == NULL); | |
aac24838 JB |
2602 | return WQ_SUCCESS; |
2603 | } | |
2604 | ||
ac021f40 LB |
2605 | while (!STAILQ_EMPTY(&pqnode->pqueue)) { |
2606 | rn = STAILQ_FIRST(&pqnode->pqueue); | |
2607 | STAILQ_REMOVE_HEAD(&pqnode->pqueue, pq); | |
b3e1dd3c | 2608 | STAILQ_NEXT(rn, pq) = NULL; /* complete unlink */ |
aac24838 | 2609 | table = bgp_node_table(rn); |
ac021f40 | 2610 | /* note, new RNs may be added as part of processing */ |
aac24838 | 2611 | bgp_process_main_one(bgp, rn, table->afi, table->safi); |
cb1faec9 | 2612 | |
aac24838 | 2613 | bgp_unlock_node(rn); |
d62a17ae | 2614 | bgp_table_unlock(table); |
2615 | } | |
aac24838 JB |
2616 | |
2617 | return WQ_SUCCESS; | |
2618 | } | |
2619 | ||
2620 | static void bgp_processq_del(struct work_queue *wq, void *data) | |
2621 | { | |
2622 | struct bgp_process_queue *pqnode = data; | |
2623 | ||
2624 | bgp_unlock(pqnode->bgp); | |
2625 | ||
2626 | XFREE(MTYPE_BGP_PROCESS_QUEUE, pqnode); | |
200df115 | 2627 | } |
2628 | ||
d62a17ae | 2629 | void bgp_process_queue_init(void) |
200df115 | 2630 | { |
0ce1ca80 | 2631 | if (!bm->process_main_queue) |
d62a17ae | 2632 | bm->process_main_queue = |
2633 | work_queue_new(bm->master, "process_main_queue"); | |
2634 | ||
aac24838 | 2635 | bm->process_main_queue->spec.workfunc = &bgp_process_wq; |
d62a17ae | 2636 | bm->process_main_queue->spec.del_item_data = &bgp_processq_del; |
2637 | bm->process_main_queue->spec.max_retries = 0; | |
2638 | bm->process_main_queue->spec.hold = 50; | |
2639 | /* Use a higher yield value of 50ms for main queue processing */ | |
2640 | bm->process_main_queue->spec.yield = 50 * 1000L; | |
200df115 | 2641 | } |
2642 | ||
cfe8d15a | 2643 | static struct bgp_process_queue *bgp_processq_alloc(struct bgp *bgp) |
aac24838 JB |
2644 | { |
2645 | struct bgp_process_queue *pqnode; | |
2646 | ||
a4d82a8a PZ |
2647 | pqnode = XCALLOC(MTYPE_BGP_PROCESS_QUEUE, |
2648 | sizeof(struct bgp_process_queue)); | |
aac24838 JB |
2649 | |
2650 | /* unlocked in bgp_processq_del */ | |
2651 | pqnode->bgp = bgp_lock(bgp); | |
2652 | STAILQ_INIT(&pqnode->pqueue); | |
2653 | ||
aac24838 JB |
2654 | return pqnode; |
2655 | } | |
2656 | ||
d62a17ae | 2657 | void bgp_process(struct bgp *bgp, struct bgp_node *rn, afi_t afi, safi_t safi) |
fee0f4c6 | 2658 | { |
aac24838 JB |
2659 | #define ARBITRARY_PROCESS_QLEN 10000 |
2660 | struct work_queue *wq = bm->process_main_queue; | |
d62a17ae | 2661 | struct bgp_process_queue *pqnode; |
cfe8d15a | 2662 | int pqnode_reuse = 0; |
495f0b13 | 2663 | |
d62a17ae | 2664 | /* already scheduled for processing? */ |
2665 | if (CHECK_FLAG(rn->flags, BGP_NODE_PROCESS_SCHEDULED)) | |
2666 | return; | |
2e02b9b2 | 2667 | |
aac24838 | 2668 | if (wq == NULL) |
d62a17ae | 2669 | return; |
2670 | ||
aac24838 | 2671 | /* Add route nodes to an existing work queue item until reaching the |
a4d82a8a PZ |
2672 | limit only if is from the same BGP view and it's not an EOIU marker |
2673 | */ | |
aac24838 JB |
2674 | if (work_queue_item_count(wq)) { |
2675 | struct work_queue_item *item = work_queue_last_item(wq); | |
2676 | pqnode = item->data; | |
228da428 | 2677 | |
a4d82a8a PZ |
2678 | if (CHECK_FLAG(pqnode->flags, BGP_PROCESS_QUEUE_EOIU_MARKER) |
2679 | || pqnode->bgp != bgp | |
2680 | || pqnode->queued >= ARBITRARY_PROCESS_QLEN) | |
cfe8d15a LB |
2681 | pqnode = bgp_processq_alloc(bgp); |
2682 | else | |
2683 | pqnode_reuse = 1; | |
aac24838 | 2684 | } else |
cfe8d15a | 2685 | pqnode = bgp_processq_alloc(bgp); |
aac24838 | 2686 | /* all unlocked in bgp_process_wq */ |
d62a17ae | 2687 | bgp_table_lock(bgp_node_table(rn)); |
aac24838 | 2688 | |
d62a17ae | 2689 | SET_FLAG(rn->flags, BGP_NODE_PROCESS_SCHEDULED); |
aac24838 JB |
2690 | bgp_lock_node(rn); |
2691 | ||
60466a63 QY |
2692 | /* can't be enqueued twice */ |
2693 | assert(STAILQ_NEXT(rn, pq) == NULL); | |
aac24838 JB |
2694 | STAILQ_INSERT_TAIL(&pqnode->pqueue, rn, pq); |
2695 | pqnode->queued++; | |
2696 | ||
cfe8d15a LB |
2697 | if (!pqnode_reuse) |
2698 | work_queue_add(wq, pqnode); | |
2699 | ||
d62a17ae | 2700 | return; |
fee0f4c6 | 2701 | } |
0a486e5f | 2702 | |
d62a17ae | 2703 | void bgp_add_eoiu_mark(struct bgp *bgp) |
cb1faec9 | 2704 | { |
d62a17ae | 2705 | struct bgp_process_queue *pqnode; |
cb1faec9 | 2706 | |
d62a17ae | 2707 | if (bm->process_main_queue == NULL) |
2708 | return; | |
2e02b9b2 | 2709 | |
cfe8d15a | 2710 | pqnode = bgp_processq_alloc(bgp); |
cb1faec9 | 2711 | |
aac24838 | 2712 | SET_FLAG(pqnode->flags, BGP_PROCESS_QUEUE_EOIU_MARKER); |
cfe8d15a | 2713 | work_queue_add(bm->process_main_queue, pqnode); |
cb1faec9 DS |
2714 | } |
2715 | ||
d62a17ae | 2716 | static int bgp_maximum_prefix_restart_timer(struct thread *thread) |
0a486e5f | 2717 | { |
d62a17ae | 2718 | struct peer *peer; |
0a486e5f | 2719 | |
d62a17ae | 2720 | peer = THREAD_ARG(thread); |
2721 | peer->t_pmax_restart = NULL; | |
0a486e5f | 2722 | |
d62a17ae | 2723 | if (bgp_debug_neighbor_events(peer)) |
2724 | zlog_debug( | |
2725 | "%s Maximum-prefix restart timer expired, restore peering", | |
2726 | peer->host); | |
0a486e5f | 2727 | |
a9bafa95 DS |
2728 | if ((peer_clear(peer, NULL) < 0) && bgp_debug_neighbor_events(peer)) |
2729 | zlog_debug("%s: %s peer_clear failed", | |
2730 | __PRETTY_FUNCTION__, peer->host); | |
0a486e5f | 2731 | |
d62a17ae | 2732 | return 0; |
0a486e5f | 2733 | } |
2734 | ||
d62a17ae | 2735 | int bgp_maximum_prefix_overflow(struct peer *peer, afi_t afi, safi_t safi, |
2736 | int always) | |
718e3744 | 2737 | { |
d62a17ae | 2738 | iana_afi_t pkt_afi; |
5c525538 | 2739 | iana_safi_t pkt_safi; |
9cabb64b | 2740 | |
d62a17ae | 2741 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX)) |
2742 | return 0; | |
e0701b79 | 2743 | |
d62a17ae | 2744 | if (peer->pcount[afi][safi] > peer->pmax[afi][safi]) { |
2745 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
2746 | PEER_STATUS_PREFIX_LIMIT) | |
2747 | && !always) | |
2748 | return 0; | |
e0701b79 | 2749 | |
d62a17ae | 2750 | zlog_info( |
2751 | "%%MAXPFXEXCEED: No. of %s prefix received from %s %ld exceed, " | |
2752 | "limit %ld", | |
2753 | afi_safi_print(afi, safi), peer->host, | |
2754 | peer->pcount[afi][safi], peer->pmax[afi][safi]); | |
2755 | SET_FLAG(peer->af_sflags[afi][safi], PEER_STATUS_PREFIX_LIMIT); | |
2756 | ||
2757 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
2758 | PEER_FLAG_MAX_PREFIX_WARNING)) | |
2759 | return 0; | |
2760 | ||
2761 | /* Convert AFI, SAFI to values for packet. */ | |
2762 | pkt_afi = afi_int2iana(afi); | |
2763 | pkt_safi = safi_int2iana(safi); | |
2764 | { | |
d7c0a89a | 2765 | uint8_t ndata[7]; |
d62a17ae | 2766 | |
2767 | ndata[0] = (pkt_afi >> 8); | |
2768 | ndata[1] = pkt_afi; | |
2769 | ndata[2] = pkt_safi; | |
2770 | ndata[3] = (peer->pmax[afi][safi] >> 24); | |
2771 | ndata[4] = (peer->pmax[afi][safi] >> 16); | |
2772 | ndata[5] = (peer->pmax[afi][safi] >> 8); | |
2773 | ndata[6] = (peer->pmax[afi][safi]); | |
2774 | ||
2775 | SET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
2776 | bgp_notify_send_with_data(peer, BGP_NOTIFY_CEASE, | |
2777 | BGP_NOTIFY_CEASE_MAX_PREFIX, | |
2778 | ndata, 7); | |
2779 | } | |
2780 | ||
2781 | /* Dynamic peers will just close their connection. */ | |
2782 | if (peer_dynamic_neighbor(peer)) | |
2783 | return 1; | |
2784 | ||
2785 | /* restart timer start */ | |
2786 | if (peer->pmax_restart[afi][safi]) { | |
2787 | peer->v_pmax_restart = | |
2788 | peer->pmax_restart[afi][safi] * 60; | |
2789 | ||
2790 | if (bgp_debug_neighbor_events(peer)) | |
2791 | zlog_debug( | |
2792 | "%s Maximum-prefix restart timer started for %d secs", | |
2793 | peer->host, peer->v_pmax_restart); | |
2794 | ||
2795 | BGP_TIMER_ON(peer->t_pmax_restart, | |
2796 | bgp_maximum_prefix_restart_timer, | |
2797 | peer->v_pmax_restart); | |
2798 | } | |
2799 | ||
2800 | return 1; | |
2801 | } else | |
2802 | UNSET_FLAG(peer->af_sflags[afi][safi], | |
2803 | PEER_STATUS_PREFIX_LIMIT); | |
2804 | ||
2805 | if (peer->pcount[afi][safi] | |
2806 | > (peer->pmax[afi][safi] * peer->pmax_threshold[afi][safi] / 100)) { | |
2807 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
2808 | PEER_STATUS_PREFIX_THRESHOLD) | |
2809 | && !always) | |
2810 | return 0; | |
2811 | ||
2812 | zlog_info( | |
2813 | "%%MAXPFX: No. of %s prefix received from %s reaches %ld, max %ld", | |
2814 | afi_safi_print(afi, safi), peer->host, | |
2815 | peer->pcount[afi][safi], peer->pmax[afi][safi]); | |
2816 | SET_FLAG(peer->af_sflags[afi][safi], | |
2817 | PEER_STATUS_PREFIX_THRESHOLD); | |
2818 | } else | |
2819 | UNSET_FLAG(peer->af_sflags[afi][safi], | |
2820 | PEER_STATUS_PREFIX_THRESHOLD); | |
2821 | return 0; | |
718e3744 | 2822 | } |
2823 | ||
b40d939b | 2824 | /* Unconditionally remove the route from the RIB, without taking |
2825 | * damping into consideration (eg, because the session went down) | |
2826 | */ | |
40381db7 | 2827 | void bgp_rib_remove(struct bgp_node *rn, struct bgp_path_info *pi, |
4b7e6066 | 2828 | struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2829 | { |
40381db7 | 2830 | bgp_aggregate_decrement(peer->bgp, &rn->p, pi, afi, safi); |
d62a17ae | 2831 | |
40381db7 DS |
2832 | if (!CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)) |
2833 | bgp_path_info_delete(rn, pi); /* keep historical info */ | |
d62a17ae | 2834 | |
4a11bf2c DL |
2835 | hook_call(bgp_process, peer->bgp, afi, safi, rn, peer, true); |
2836 | ||
d62a17ae | 2837 | bgp_process(peer->bgp, rn, afi, safi); |
2838 | } | |
2839 | ||
40381db7 | 2840 | static void bgp_rib_withdraw(struct bgp_node *rn, struct bgp_path_info *pi, |
d62a17ae | 2841 | struct peer *peer, afi_t afi, safi_t safi, |
2842 | struct prefix_rd *prd) | |
2843 | { | |
d62a17ae | 2844 | /* apply dampening, if result is suppressed, we'll be retaining |
18ee8310 | 2845 | * the bgp_path_info in the RIB for historical reference. |
d62a17ae | 2846 | */ |
2847 | if (CHECK_FLAG(peer->bgp->af_flags[afi][safi], BGP_CONFIG_DAMPENING) | |
2848 | && peer->sort == BGP_PEER_EBGP) | |
40381db7 | 2849 | if ((bgp_damp_withdraw(pi, rn, afi, safi, 0)) |
d62a17ae | 2850 | == BGP_DAMP_SUPPRESSED) { |
40381db7 | 2851 | bgp_aggregate_decrement(peer->bgp, &rn->p, pi, afi, |
d62a17ae | 2852 | safi); |
2853 | return; | |
2854 | } | |
2855 | ||
65efcfce | 2856 | #if ENABLE_BGP_VNC |
d62a17ae | 2857 | if (safi == SAFI_MPLS_VPN) { |
2858 | struct bgp_node *prn = NULL; | |
2859 | struct bgp_table *table = NULL; | |
2860 | ||
2861 | prn = bgp_node_get(peer->bgp->rib[afi][safi], | |
2862 | (struct prefix *)prd); | |
67009e22 DS |
2863 | if (bgp_node_has_bgp_path_info_data(prn)) { |
2864 | table = bgp_node_get_bgp_table_info(prn); | |
d62a17ae | 2865 | |
2866 | vnc_import_bgp_del_vnc_host_route_mode_resolve_nve( | |
40381db7 | 2867 | peer->bgp, prd, table, &rn->p, pi); |
d62a17ae | 2868 | } |
2869 | bgp_unlock_node(prn); | |
2870 | } | |
2871 | if ((afi == AFI_IP || afi == AFI_IP6) && (safi == SAFI_UNICAST)) { | |
40381db7 | 2872 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) { |
65efcfce | 2873 | |
40381db7 | 2874 | vnc_import_bgp_del_route(peer->bgp, &rn->p, pi); |
d62a17ae | 2875 | vnc_import_bgp_exterior_del_route(peer->bgp, &rn->p, |
40381db7 | 2876 | pi); |
d62a17ae | 2877 | } |
65efcfce | 2878 | } |
d62a17ae | 2879 | #endif |
128ea8ab | 2880 | |
d62a17ae | 2881 | /* If this is an EVPN route, process for un-import. */ |
2882 | if (safi == SAFI_EVPN) | |
40381db7 | 2883 | bgp_evpn_unimport_route(peer->bgp, afi, safi, &rn->p, pi); |
128ea8ab | 2884 | |
40381db7 | 2885 | bgp_rib_remove(rn, pi, peer, afi, safi); |
718e3744 | 2886 | } |
2887 | ||
4b7e6066 DS |
2888 | struct bgp_path_info *info_make(int type, int sub_type, unsigned short instance, |
2889 | struct peer *peer, struct attr *attr, | |
2890 | struct bgp_node *rn) | |
fb018d25 | 2891 | { |
4b7e6066 | 2892 | struct bgp_path_info *new; |
fb018d25 | 2893 | |
d62a17ae | 2894 | /* Make new BGP info. */ |
4b7e6066 | 2895 | new = XCALLOC(MTYPE_BGP_ROUTE, sizeof(struct bgp_path_info)); |
d62a17ae | 2896 | new->type = type; |
2897 | new->instance = instance; | |
2898 | new->sub_type = sub_type; | |
2899 | new->peer = peer; | |
2900 | new->attr = attr; | |
2901 | new->uptime = bgp_clock(); | |
2902 | new->net = rn; | |
d62a17ae | 2903 | return new; |
fb018d25 DS |
2904 | } |
2905 | ||
d62a17ae | 2906 | static void overlay_index_update(struct attr *attr, |
2907 | struct eth_segment_id *eth_s_id, | |
2908 | union gw_addr *gw_ip) | |
684a7227 | 2909 | { |
d62a17ae | 2910 | if (!attr) |
2911 | return; | |
684a7227 | 2912 | |
d62a17ae | 2913 | if (eth_s_id == NULL) { |
2914 | memset(&(attr->evpn_overlay.eth_s_id), 0, | |
2915 | sizeof(struct eth_segment_id)); | |
2916 | } else { | |
2917 | memcpy(&(attr->evpn_overlay.eth_s_id), eth_s_id, | |
2918 | sizeof(struct eth_segment_id)); | |
2919 | } | |
2920 | if (gw_ip == NULL) { | |
2921 | memset(&(attr->evpn_overlay.gw_ip), 0, sizeof(union gw_addr)); | |
2922 | } else { | |
2923 | memcpy(&(attr->evpn_overlay.gw_ip), gw_ip, | |
2924 | sizeof(union gw_addr)); | |
2925 | } | |
684a7227 PG |
2926 | } |
2927 | ||
40381db7 | 2928 | static bool overlay_index_equal(afi_t afi, struct bgp_path_info *path, |
d62a17ae | 2929 | struct eth_segment_id *eth_s_id, |
2930 | union gw_addr *gw_ip) | |
2931 | { | |
40381db7 DS |
2932 | struct eth_segment_id *path_eth_s_id, *path_eth_s_id_remote; |
2933 | union gw_addr *path_gw_ip, *path_gw_ip_remote; | |
11ebf4ed DS |
2934 | union { |
2935 | struct eth_segment_id esi; | |
2936 | union gw_addr ip; | |
2937 | } temp; | |
d62a17ae | 2938 | |
2939 | if (afi != AFI_L2VPN) | |
2940 | return true; | |
40381db7 | 2941 | if (!path->attr) { |
11ebf4ed | 2942 | memset(&temp, 0, sizeof(temp)); |
40381db7 DS |
2943 | path_eth_s_id = &temp.esi; |
2944 | path_gw_ip = &temp.ip; | |
11ebf4ed | 2945 | |
d62a17ae | 2946 | if (eth_s_id == NULL && gw_ip == NULL) |
2947 | return true; | |
2948 | } else { | |
40381db7 DS |
2949 | path_eth_s_id = &(path->attr->evpn_overlay.eth_s_id); |
2950 | path_gw_ip = &(path->attr->evpn_overlay.gw_ip); | |
d62a17ae | 2951 | } |
11ebf4ed DS |
2952 | |
2953 | if (gw_ip == NULL) { | |
2954 | memset(&temp, 0, sizeof(temp)); | |
40381db7 | 2955 | path_gw_ip_remote = &temp.ip; |
11ebf4ed | 2956 | } else |
40381db7 | 2957 | path_gw_ip_remote = gw_ip; |
11ebf4ed DS |
2958 | |
2959 | if (eth_s_id == NULL) { | |
2960 | memset(&temp, 0, sizeof(temp)); | |
40381db7 | 2961 | path_eth_s_id_remote = &temp.esi; |
11ebf4ed | 2962 | } else |
40381db7 | 2963 | path_eth_s_id_remote = eth_s_id; |
11ebf4ed | 2964 | |
40381db7 | 2965 | if (!memcmp(path_gw_ip, path_gw_ip_remote, sizeof(union gw_addr))) |
d62a17ae | 2966 | return false; |
11ebf4ed | 2967 | |
40381db7 | 2968 | return !memcmp(path_eth_s_id, path_eth_s_id_remote, |
d62a17ae | 2969 | sizeof(struct eth_segment_id)); |
684a7227 PG |
2970 | } |
2971 | ||
c265ee22 | 2972 | /* Check if received nexthop is valid or not. */ |
d62a17ae | 2973 | static int bgp_update_martian_nexthop(struct bgp *bgp, afi_t afi, safi_t safi, |
2974 | struct attr *attr) | |
2975 | { | |
2976 | int ret = 0; | |
2977 | ||
2978 | /* Only validated for unicast and multicast currently. */ | |
2979 | /* Also valid for EVPN where the nexthop is an IP address. */ | |
2980 | if (safi != SAFI_UNICAST && safi != SAFI_MULTICAST && safi != SAFI_EVPN) | |
2981 | return 0; | |
2982 | ||
2983 | /* If NEXT_HOP is present, validate it. */ | |
2984 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { | |
2985 | if (attr->nexthop.s_addr == 0 | |
2986 | || IPV4_CLASS_DE(ntohl(attr->nexthop.s_addr)) | |
2987 | || bgp_nexthop_self(bgp, attr->nexthop)) | |
2988 | return 1; | |
2989 | } | |
c265ee22 | 2990 | |
d62a17ae | 2991 | /* If MP_NEXTHOP is present, validate it. */ |
2992 | /* Note: For IPv6 nexthops, we only validate the global (1st) nexthop; | |
2993 | * there is code in bgp_attr.c to ignore the link-local (2nd) nexthop if | |
2994 | * it is not an IPv6 link-local address. | |
2995 | */ | |
2996 | if (attr->mp_nexthop_len) { | |
2997 | switch (attr->mp_nexthop_len) { | |
2998 | case BGP_ATTR_NHLEN_IPV4: | |
2999 | case BGP_ATTR_NHLEN_VPNV4: | |
3000 | ret = (attr->mp_nexthop_global_in.s_addr == 0 | |
3001 | || IPV4_CLASS_DE(ntohl( | |
3002 | attr->mp_nexthop_global_in.s_addr)) | |
3003 | || bgp_nexthop_self(bgp, | |
3004 | attr->mp_nexthop_global_in)); | |
3005 | break; | |
3006 | ||
3007 | case BGP_ATTR_NHLEN_IPV6_GLOBAL: | |
3008 | case BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL: | |
3009 | case BGP_ATTR_NHLEN_VPNV6_GLOBAL: | |
3010 | ret = (IN6_IS_ADDR_UNSPECIFIED(&attr->mp_nexthop_global) | |
3011 | || IN6_IS_ADDR_LOOPBACK(&attr->mp_nexthop_global) | |
3012 | || IN6_IS_ADDR_MULTICAST( | |
5e76ce50 | 3013 | &attr->mp_nexthop_global)); |
d62a17ae | 3014 | break; |
3015 | ||
3016 | default: | |
3017 | ret = 1; | |
3018 | break; | |
3019 | } | |
3020 | } | |
c265ee22 | 3021 | |
d62a17ae | 3022 | return ret; |
3023 | } | |
3024 | ||
d7c0a89a | 3025 | int bgp_update(struct peer *peer, struct prefix *p, uint32_t addpath_id, |
d62a17ae | 3026 | struct attr *attr, afi_t afi, safi_t safi, int type, |
a4d82a8a | 3027 | int sub_type, struct prefix_rd *prd, mpls_label_t *label, |
d7c0a89a | 3028 | uint32_t num_labels, int soft_reconfig, |
a4d82a8a | 3029 | struct bgp_route_evpn *evpn) |
d62a17ae | 3030 | { |
3031 | int ret; | |
3032 | int aspath_loop_count = 0; | |
3033 | struct bgp_node *rn; | |
3034 | struct bgp *bgp; | |
3035 | struct attr new_attr; | |
3036 | struct attr *attr_new; | |
40381db7 | 3037 | struct bgp_path_info *pi; |
4b7e6066 DS |
3038 | struct bgp_path_info *new; |
3039 | struct bgp_path_info_extra *extra; | |
d62a17ae | 3040 | const char *reason; |
3041 | char pfx_buf[BGP_PRD_PATH_STRLEN]; | |
d62a17ae | 3042 | int connected = 0; |
3043 | int do_loop_check = 1; | |
3044 | int has_valid_label = 0; | |
65efcfce | 3045 | #if ENABLE_BGP_VNC |
d62a17ae | 3046 | int vnc_implicit_withdraw = 0; |
65efcfce | 3047 | #endif |
d62a17ae | 3048 | int same_attr = 0; |
718e3744 | 3049 | |
d62a17ae | 3050 | memset(&new_attr, 0, sizeof(struct attr)); |
3051 | new_attr.label_index = BGP_INVALID_LABEL_INDEX; | |
3052 | new_attr.label = MPLS_INVALID_LABEL; | |
f9a3a260 | 3053 | |
d62a17ae | 3054 | bgp = peer->bgp; |
3055 | rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, prd); | |
b57ba6d2 MK |
3056 | /* TODO: Check to see if we can get rid of "is_valid_label" */ |
3057 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) | |
3058 | has_valid_label = (num_labels > 0) ? 1 : 0; | |
3059 | else | |
3060 | has_valid_label = bgp_is_valid_label(label); | |
718e3744 | 3061 | |
d62a17ae | 3062 | /* When peer's soft reconfiguration enabled. Record input packet in |
3063 | Adj-RIBs-In. */ | |
3064 | if (!soft_reconfig | |
3065 | && CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SOFT_RECONFIG) | |
3066 | && peer != bgp->peer_self) | |
3067 | bgp_adj_in_set(rn, peer, attr, addpath_id); | |
3068 | ||
3069 | /* Check previously received route. */ | |
6f94b685 | 3070 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 DS |
3071 | if (pi->peer == peer && pi->type == type |
3072 | && pi->sub_type == sub_type | |
3073 | && pi->addpath_rx_id == addpath_id) | |
d62a17ae | 3074 | break; |
3075 | ||
3076 | /* AS path local-as loop check. */ | |
3077 | if (peer->change_local_as) { | |
c4368918 DW |
3078 | if (peer->allowas_in[afi][safi]) |
3079 | aspath_loop_count = peer->allowas_in[afi][safi]; | |
a4d82a8a PZ |
3080 | else if (!CHECK_FLAG(peer->flags, |
3081 | PEER_FLAG_LOCAL_AS_NO_PREPEND)) | |
d62a17ae | 3082 | aspath_loop_count = 1; |
3083 | ||
3084 | if (aspath_loop_check(attr->aspath, peer->change_local_as) | |
3085 | > aspath_loop_count) { | |
b4d46cc9 | 3086 | peer->stat_pfx_aspath_loop++; |
d62a17ae | 3087 | reason = "as-path contains our own AS;"; |
3088 | goto filtered; | |
3089 | } | |
718e3744 | 3090 | } |
718e3744 | 3091 | |
d62a17ae | 3092 | /* If the peer is configured for "allowas-in origin" and the last ASN in |
3093 | * the | |
3094 | * as-path is our ASN then we do not need to call aspath_loop_check | |
3095 | */ | |
3096 | if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN_ORIGIN)) | |
3097 | if (aspath_get_last_as(attr->aspath) == bgp->as) | |
3098 | do_loop_check = 0; | |
3099 | ||
3100 | /* AS path loop check. */ | |
3101 | if (do_loop_check) { | |
3102 | if (aspath_loop_check(attr->aspath, bgp->as) | |
3103 | > peer->allowas_in[afi][safi] | |
3104 | || (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION) | |
3105 | && aspath_loop_check(attr->aspath, bgp->confed_id) | |
3106 | > peer->allowas_in[afi][safi])) { | |
b4d46cc9 | 3107 | peer->stat_pfx_aspath_loop++; |
d62a17ae | 3108 | reason = "as-path contains our own AS;"; |
3109 | goto filtered; | |
3110 | } | |
3111 | } | |
aac9ef6c | 3112 | |
d62a17ae | 3113 | /* Route reflector originator ID check. */ |
3114 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID) | |
3115 | && IPV4_ADDR_SAME(&bgp->router_id, &attr->originator_id)) { | |
b4d46cc9 | 3116 | peer->stat_pfx_originator_loop++; |
d62a17ae | 3117 | reason = "originator is us;"; |
3118 | goto filtered; | |
3119 | } | |
718e3744 | 3120 | |
d62a17ae | 3121 | /* Route reflector cluster ID check. */ |
3122 | if (bgp_cluster_filter(peer, attr)) { | |
b4d46cc9 | 3123 | peer->stat_pfx_cluster_loop++; |
d62a17ae | 3124 | reason = "reflected from the same cluster;"; |
3125 | goto filtered; | |
3126 | } | |
718e3744 | 3127 | |
d62a17ae | 3128 | /* Apply incoming filter. */ |
3129 | if (bgp_input_filter(peer, p, attr, afi, safi) == FILTER_DENY) { | |
b4d46cc9 | 3130 | peer->stat_pfx_filter++; |
d62a17ae | 3131 | reason = "filter;"; |
3132 | goto filtered; | |
3133 | } | |
718e3744 | 3134 | |
a8b72dc6 DA |
3135 | /* RFC 8212 to prevent route leaks. |
3136 | * This specification intends to improve this situation by requiring the | |
3137 | * explicit configuration of both BGP Import and Export Policies for any | |
3138 | * External BGP (EBGP) session such as customers, peers, or | |
3139 | * confederation boundaries for all enabled address families. Through | |
3140 | * codification of the aforementioned requirement, operators will | |
3141 | * benefit from consistent behavior across different BGP | |
3142 | * implementations. | |
3143 | */ | |
3144 | if (peer->bgp->ebgp_requires_policy == DEFAULT_EBGP_POLICY_ENABLED) | |
3145 | if (!bgp_inbound_policy_exists(peer, | |
3146 | &peer->filter[afi][safi])) { | |
3147 | reason = "inbound policy missing"; | |
3148 | goto filtered; | |
3149 | } | |
3150 | ||
d62a17ae | 3151 | bgp_attr_dup(&new_attr, attr); |
3152 | ||
3153 | /* Apply incoming route-map. | |
3154 | * NB: new_attr may now contain newly allocated values from route-map | |
3155 | * "set" | |
3156 | * commands, so we need bgp_attr_flush in the error paths, until we | |
3157 | * intern | |
3158 | * the attr (which takes over the memory references) */ | |
82b692c0 LK |
3159 | if (bgp_input_modifier(peer, p, &new_attr, afi, safi, NULL, |
3160 | label, num_labels) == RMAP_DENY) { | |
b4d46cc9 | 3161 | peer->stat_pfx_filter++; |
d62a17ae | 3162 | reason = "route-map;"; |
3163 | bgp_attr_flush(&new_attr); | |
3164 | goto filtered; | |
3165 | } | |
718e3744 | 3166 | |
7f323236 DW |
3167 | if (peer->sort == BGP_PEER_EBGP) { |
3168 | ||
a4d82a8a PZ |
3169 | /* If we receive the graceful-shutdown community from an eBGP |
3170 | * peer we must lower local-preference */ | |
3171 | if (new_attr.community | |
3172 | && community_include(new_attr.community, COMMUNITY_GSHUT)) { | |
7f323236 DW |
3173 | new_attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF); |
3174 | new_attr.local_pref = BGP_GSHUT_LOCAL_PREF; | |
3175 | ||
a4d82a8a PZ |
3176 | /* If graceful-shutdown is configured then add the GSHUT |
3177 | * community to all paths received from eBGP peers */ | |
3178 | } else if (bgp_flag_check(peer->bgp, | |
3179 | BGP_FLAG_GRACEFUL_SHUTDOWN)) { | |
7f323236 DW |
3180 | bgp_attr_add_gshut_community(&new_attr); |
3181 | } | |
3182 | } | |
3183 | ||
d62a17ae | 3184 | /* next hop check. */ |
a4d82a8a PZ |
3185 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IS_RFAPI_HD) |
3186 | && bgp_update_martian_nexthop(bgp, afi, safi, &new_attr)) { | |
b4d46cc9 | 3187 | peer->stat_pfx_nh_invalid++; |
d62a17ae | 3188 | reason = "martian or self next-hop;"; |
3189 | bgp_attr_flush(&new_attr); | |
3190 | goto filtered; | |
3191 | } | |
718e3744 | 3192 | |
5c14a191 | 3193 | if (bgp_mac_entry_exists(p) || bgp_mac_exist(&attr->rmac)) { |
b4d46cc9 | 3194 | peer->stat_pfx_nh_invalid++; |
4e802e66 DS |
3195 | reason = "self mac;"; |
3196 | goto filtered; | |
3197 | } | |
3198 | ||
d62a17ae | 3199 | attr_new = bgp_attr_intern(&new_attr); |
3200 | ||
3201 | /* If the update is implicit withdraw. */ | |
40381db7 DS |
3202 | if (pi) { |
3203 | pi->uptime = bgp_clock(); | |
3204 | same_attr = attrhash_cmp(pi->attr, attr_new); | |
d62a17ae | 3205 | |
4a11bf2c DL |
3206 | hook_call(bgp_process, bgp, afi, safi, rn, peer, true); |
3207 | ||
d62a17ae | 3208 | /* Same attribute comes in. */ |
40381db7 DS |
3209 | if (!CHECK_FLAG(pi->flags, BGP_PATH_REMOVED) |
3210 | && attrhash_cmp(pi->attr, attr_new) | |
d62a17ae | 3211 | && (!has_valid_label |
40381db7 | 3212 | || memcmp(&(bgp_path_info_extra_get(pi))->label, label, |
b57ba6d2 | 3213 | num_labels * sizeof(mpls_label_t)) |
d62a17ae | 3214 | == 0) |
3215 | && (overlay_index_equal( | |
40381db7 | 3216 | afi, pi, evpn == NULL ? NULL : &evpn->eth_s_id, |
d62a17ae | 3217 | evpn == NULL ? NULL : &evpn->gw_ip))) { |
3218 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
3219 | BGP_CONFIG_DAMPENING) | |
3220 | && peer->sort == BGP_PEER_EBGP | |
40381db7 | 3221 | && CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)) { |
d62a17ae | 3222 | if (bgp_debug_update(peer, p, NULL, 1)) { |
3223 | bgp_debug_rdpfxpath2str( | |
a4d82a8a PZ |
3224 | afi, safi, prd, p, label, |
3225 | num_labels, addpath_id ? 1 : 0, | |
3226 | addpath_id, pfx_buf, | |
3227 | sizeof(pfx_buf)); | |
d62a17ae | 3228 | zlog_debug("%s rcvd %s", peer->host, |
3229 | pfx_buf); | |
3230 | } | |
3231 | ||
40381db7 | 3232 | if (bgp_damp_update(pi, rn, afi, safi) |
d62a17ae | 3233 | != BGP_DAMP_SUPPRESSED) { |
40381db7 | 3234 | bgp_aggregate_increment(bgp, p, pi, afi, |
d62a17ae | 3235 | safi); |
3236 | bgp_process(bgp, rn, afi, safi); | |
3237 | } | |
3238 | } else /* Duplicate - odd */ | |
3239 | { | |
3240 | if (bgp_debug_update(peer, p, NULL, 1)) { | |
3241 | if (!peer->rcvd_attr_printed) { | |
3242 | zlog_debug( | |
3243 | "%s rcvd UPDATE w/ attr: %s", | |
3244 | peer->host, | |
3245 | peer->rcvd_attr_str); | |
3246 | peer->rcvd_attr_printed = 1; | |
3247 | } | |
3248 | ||
3249 | bgp_debug_rdpfxpath2str( | |
a4d82a8a PZ |
3250 | afi, safi, prd, p, label, |
3251 | num_labels, addpath_id ? 1 : 0, | |
3252 | addpath_id, pfx_buf, | |
3253 | sizeof(pfx_buf)); | |
d62a17ae | 3254 | zlog_debug( |
3255 | "%s rcvd %s...duplicate ignored", | |
3256 | peer->host, pfx_buf); | |
3257 | } | |
3258 | ||
3259 | /* graceful restart STALE flag unset. */ | |
40381db7 | 3260 | if (CHECK_FLAG(pi->flags, BGP_PATH_STALE)) { |
18ee8310 | 3261 | bgp_path_info_unset_flag( |
40381db7 | 3262 | rn, pi, BGP_PATH_STALE); |
d62a17ae | 3263 | bgp_process(bgp, rn, afi, safi); |
3264 | } | |
3265 | } | |
3266 | ||
3267 | bgp_unlock_node(rn); | |
3268 | bgp_attr_unintern(&attr_new); | |
3269 | ||
3270 | return 0; | |
3271 | } | |
718e3744 | 3272 | |
d62a17ae | 3273 | /* Withdraw/Announce before we fully processed the withdraw */ |
40381db7 | 3274 | if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) { |
d62a17ae | 3275 | if (bgp_debug_update(peer, p, NULL, 1)) { |
3276 | bgp_debug_rdpfxpath2str( | |
a4d82a8a | 3277 | afi, safi, prd, p, label, num_labels, |
d62a17ae | 3278 | addpath_id ? 1 : 0, addpath_id, pfx_buf, |
3279 | sizeof(pfx_buf)); | |
3280 | zlog_debug( | |
3281 | "%s rcvd %s, flapped quicker than processing", | |
3282 | peer->host, pfx_buf); | |
3283 | } | |
3284 | ||
40381db7 | 3285 | bgp_path_info_restore(rn, pi); |
d62a17ae | 3286 | } |
718e3744 | 3287 | |
d62a17ae | 3288 | /* Received Logging. */ |
3289 | if (bgp_debug_update(peer, p, NULL, 1)) { | |
a4d82a8a PZ |
3290 | bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, |
3291 | num_labels, addpath_id ? 1 : 0, | |
3292 | addpath_id, pfx_buf, | |
3293 | sizeof(pfx_buf)); | |
d62a17ae | 3294 | zlog_debug("%s rcvd %s", peer->host, pfx_buf); |
3295 | } | |
718e3744 | 3296 | |
d62a17ae | 3297 | /* graceful restart STALE flag unset. */ |
40381db7 DS |
3298 | if (CHECK_FLAG(pi->flags, BGP_PATH_STALE)) |
3299 | bgp_path_info_unset_flag(rn, pi, BGP_PATH_STALE); | |
d62a17ae | 3300 | |
3301 | /* The attribute is changed. */ | |
40381db7 | 3302 | bgp_path_info_set_flag(rn, pi, BGP_PATH_ATTR_CHANGED); |
d62a17ae | 3303 | |
3304 | /* implicit withdraw, decrement aggregate and pcount here. | |
3305 | * only if update is accepted, they'll increment below. | |
3306 | */ | |
40381db7 | 3307 | bgp_aggregate_decrement(bgp, p, pi, afi, safi); |
d62a17ae | 3308 | |
3309 | /* Update bgp route dampening information. */ | |
3310 | if (CHECK_FLAG(bgp->af_flags[afi][safi], BGP_CONFIG_DAMPENING) | |
3311 | && peer->sort == BGP_PEER_EBGP) { | |
3312 | /* This is implicit withdraw so we should update | |
3313 | dampening | |
3314 | information. */ | |
40381db7 DS |
3315 | if (!CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)) |
3316 | bgp_damp_withdraw(pi, rn, afi, safi, 1); | |
d62a17ae | 3317 | } |
65efcfce | 3318 | #if ENABLE_BGP_VNC |
d62a17ae | 3319 | if (safi == SAFI_MPLS_VPN) { |
3320 | struct bgp_node *prn = NULL; | |
3321 | struct bgp_table *table = NULL; | |
3322 | ||
3323 | prn = bgp_node_get(bgp->rib[afi][safi], | |
3324 | (struct prefix *)prd); | |
67009e22 DS |
3325 | if (bgp_node_has_bgp_path_info_data(prn)) { |
3326 | table = bgp_node_get_bgp_table_info(prn); | |
d62a17ae | 3327 | |
3328 | vnc_import_bgp_del_vnc_host_route_mode_resolve_nve( | |
40381db7 | 3329 | bgp, prd, table, p, pi); |
d62a17ae | 3330 | } |
3331 | bgp_unlock_node(prn); | |
3332 | } | |
3333 | if ((afi == AFI_IP || afi == AFI_IP6) | |
3334 | && (safi == SAFI_UNICAST)) { | |
40381db7 | 3335 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) { |
d62a17ae | 3336 | /* |
3337 | * Implicit withdraw case. | |
3338 | */ | |
3339 | ++vnc_implicit_withdraw; | |
40381db7 DS |
3340 | vnc_import_bgp_del_route(bgp, p, pi); |
3341 | vnc_import_bgp_exterior_del_route(bgp, p, pi); | |
d62a17ae | 3342 | } |
3343 | } | |
65efcfce | 3344 | #endif |
128ea8ab | 3345 | |
d62a17ae | 3346 | /* Special handling for EVPN update of an existing route. If the |
3347 | * extended community attribute has changed, we need to | |
3348 | * un-import | |
3349 | * the route using its existing extended community. It will be | |
3350 | * subsequently processed for import with the new extended | |
3351 | * community. | |
3352 | */ | |
3353 | if (safi == SAFI_EVPN && !same_attr) { | |
40381db7 | 3354 | if ((pi->attr->flag |
d62a17ae | 3355 | & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)) |
3356 | && (attr_new->flag | |
3357 | & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES))) { | |
3358 | int cmp; | |
3359 | ||
40381db7 | 3360 | cmp = ecommunity_cmp(pi->attr->ecommunity, |
d62a17ae | 3361 | attr_new->ecommunity); |
3362 | if (!cmp) { | |
3363 | if (bgp_debug_update(peer, p, NULL, 1)) | |
3364 | zlog_debug( | |
3365 | "Change in EXT-COMM, existing %s new %s", | |
3366 | ecommunity_str( | |
40381db7 | 3367 | pi->attr->ecommunity), |
d62a17ae | 3368 | ecommunity_str( |
3369 | attr_new->ecommunity)); | |
3370 | bgp_evpn_unimport_route(bgp, afi, safi, | |
40381db7 | 3371 | p, pi); |
d62a17ae | 3372 | } |
3373 | } | |
3374 | } | |
718e3744 | 3375 | |
d62a17ae | 3376 | /* Update to new attribute. */ |
40381db7 DS |
3377 | bgp_attr_unintern(&pi->attr); |
3378 | pi->attr = attr_new; | |
d62a17ae | 3379 | |
3380 | /* Update MPLS label */ | |
3381 | if (has_valid_label) { | |
40381db7 | 3382 | extra = bgp_path_info_extra_get(pi); |
8ba71050 NS |
3383 | if (extra->label != label) { |
3384 | memcpy(&extra->label, label, | |
dbd587da | 3385 | num_labels * sizeof(mpls_label_t)); |
8ba71050 NS |
3386 | extra->num_labels = num_labels; |
3387 | } | |
b57ba6d2 MK |
3388 | if (!(afi == AFI_L2VPN && safi == SAFI_EVPN)) |
3389 | bgp_set_valid_label(&extra->label[0]); | |
fc9a856f | 3390 | } |
718e3744 | 3391 | |
65efcfce | 3392 | #if ENABLE_BGP_VNC |
d62a17ae | 3393 | if ((afi == AFI_IP || afi == AFI_IP6) |
3394 | && (safi == SAFI_UNICAST)) { | |
3395 | if (vnc_implicit_withdraw) { | |
3396 | /* | |
3397 | * Add back the route with its new attributes | |
3398 | * (e.g., nexthop). | |
3399 | * The route is still selected, until the route | |
3400 | * selection | |
3401 | * queued by bgp_process actually runs. We have | |
3402 | * to make this | |
3403 | * update to the VNC side immediately to avoid | |
3404 | * racing against | |
3405 | * configuration changes (e.g., route-map | |
3406 | * changes) which | |
3407 | * trigger re-importation of the entire RIB. | |
3408 | */ | |
40381db7 DS |
3409 | vnc_import_bgp_add_route(bgp, p, pi); |
3410 | vnc_import_bgp_exterior_add_route(bgp, p, pi); | |
d62a17ae | 3411 | } |
3412 | } | |
65efcfce | 3413 | #endif |
d62a17ae | 3414 | /* Update Overlay Index */ |
3415 | if (afi == AFI_L2VPN) { | |
3416 | overlay_index_update( | |
40381db7 | 3417 | pi->attr, evpn == NULL ? NULL : &evpn->eth_s_id, |
d62a17ae | 3418 | evpn == NULL ? NULL : &evpn->gw_ip); |
3419 | } | |
65efcfce | 3420 | |
d62a17ae | 3421 | /* Update bgp route dampening information. */ |
3422 | if (CHECK_FLAG(bgp->af_flags[afi][safi], BGP_CONFIG_DAMPENING) | |
3423 | && peer->sort == BGP_PEER_EBGP) { | |
3424 | /* Now we do normal update dampening. */ | |
40381db7 | 3425 | ret = bgp_damp_update(pi, rn, afi, safi); |
d62a17ae | 3426 | if (ret == BGP_DAMP_SUPPRESSED) { |
3427 | bgp_unlock_node(rn); | |
3428 | return 0; | |
3429 | } | |
3430 | } | |
128ea8ab | 3431 | |
d62a17ae | 3432 | /* Nexthop reachability check - for unicast and |
3433 | * labeled-unicast.. */ | |
3434 | if ((afi == AFI_IP || afi == AFI_IP6) | |
3435 | && (safi == SAFI_UNICAST || safi == SAFI_LABELED_UNICAST)) { | |
3436 | if (peer->sort == BGP_PEER_EBGP && peer->ttl == 1 | |
3437 | && !CHECK_FLAG(peer->flags, | |
3438 | PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
3439 | && !bgp_flag_check( | |
3440 | bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
3441 | connected = 1; | |
3442 | else | |
3443 | connected = 0; | |
3444 | ||
960035b2 PZ |
3445 | struct bgp *bgp_nexthop = bgp; |
3446 | ||
40381db7 DS |
3447 | if (pi->extra && pi->extra->bgp_orig) |
3448 | bgp_nexthop = pi->extra->bgp_orig; | |
960035b2 | 3449 | |
40381db7 DS |
3450 | if (bgp_find_or_add_nexthop(bgp, bgp_nexthop, afi, pi, |
3451 | NULL, connected) | |
a4d82a8a | 3452 | || CHECK_FLAG(peer->flags, PEER_FLAG_IS_RFAPI_HD)) |
40381db7 | 3453 | bgp_path_info_set_flag(rn, pi, BGP_PATH_VALID); |
d62a17ae | 3454 | else { |
3455 | if (BGP_DEBUG(nht, NHT)) { | |
3456 | char buf1[INET6_ADDRSTRLEN]; | |
3457 | inet_ntop(AF_INET, | |
3458 | (const void *)&attr_new | |
3459 | ->nexthop, | |
3460 | buf1, INET6_ADDRSTRLEN); | |
3461 | zlog_debug("%s(%s): NH unresolved", | |
3462 | __FUNCTION__, buf1); | |
3463 | } | |
40381db7 | 3464 | bgp_path_info_unset_flag(rn, pi, |
18ee8310 | 3465 | BGP_PATH_VALID); |
d62a17ae | 3466 | } |
3467 | } else | |
40381db7 | 3468 | bgp_path_info_set_flag(rn, pi, BGP_PATH_VALID); |
d62a17ae | 3469 | |
3470 | #if ENABLE_BGP_VNC | |
3471 | if (safi == SAFI_MPLS_VPN) { | |
3472 | struct bgp_node *prn = NULL; | |
3473 | struct bgp_table *table = NULL; | |
3474 | ||
3475 | prn = bgp_node_get(bgp->rib[afi][safi], | |
3476 | (struct prefix *)prd); | |
67009e22 DS |
3477 | if (bgp_node_has_bgp_path_info_data(prn)) { |
3478 | table = bgp_node_get_bgp_table_info(prn); | |
d62a17ae | 3479 | |
3480 | vnc_import_bgp_add_vnc_host_route_mode_resolve_nve( | |
40381db7 | 3481 | bgp, prd, table, p, pi); |
d62a17ae | 3482 | } |
3483 | bgp_unlock_node(prn); | |
3484 | } | |
3485 | #endif | |
718e3744 | 3486 | |
d62a17ae | 3487 | /* If this is an EVPN route and some attribute has changed, |
3488 | * process | |
3489 | * route for import. If the extended community has changed, we | |
3490 | * would | |
3491 | * have done the un-import earlier and the import would result | |
3492 | * in the | |
3493 | * route getting injected into appropriate L2 VNIs. If it is | |
3494 | * just | |
3495 | * some other attribute change, the import will result in | |
3496 | * updating | |
3497 | * the attributes for the route in the VNI(s). | |
3498 | */ | |
3499 | if (safi == SAFI_EVPN && !same_attr) | |
40381db7 | 3500 | bgp_evpn_import_route(bgp, afi, safi, p, pi); |
d62a17ae | 3501 | |
3502 | /* Process change. */ | |
40381db7 | 3503 | bgp_aggregate_increment(bgp, p, pi, afi, safi); |
d62a17ae | 3504 | |
3505 | bgp_process(bgp, rn, afi, safi); | |
3506 | bgp_unlock_node(rn); | |
558d1fec | 3507 | |
ddb5b488 PZ |
3508 | if (SAFI_UNICAST == safi |
3509 | && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF | |
3510 | || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
3511 | ||
40381db7 | 3512 | vpn_leak_from_vrf_update(bgp_get_default(), bgp, pi); |
ddb5b488 PZ |
3513 | } |
3514 | if ((SAFI_MPLS_VPN == safi) | |
3515 | && (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
3516 | ||
40381db7 | 3517 | vpn_leak_to_vrf_update(bgp, pi); |
ddb5b488 PZ |
3518 | } |
3519 | ||
28070ee3 | 3520 | #if ENABLE_BGP_VNC |
d62a17ae | 3521 | if (SAFI_MPLS_VPN == safi) { |
3522 | mpls_label_t label_decoded = decode_label(label); | |
28070ee3 | 3523 | |
d62a17ae | 3524 | rfapiProcessUpdate(peer, NULL, p, prd, attr, afi, safi, |
3525 | type, sub_type, &label_decoded); | |
3526 | } | |
3527 | if (SAFI_ENCAP == safi) { | |
3528 | rfapiProcessUpdate(peer, NULL, p, prd, attr, afi, safi, | |
3529 | type, sub_type, NULL); | |
3530 | } | |
28070ee3 PZ |
3531 | #endif |
3532 | ||
d62a17ae | 3533 | return 0; |
3534 | } // End of implicit withdraw | |
718e3744 | 3535 | |
d62a17ae | 3536 | /* Received Logging. */ |
3537 | if (bgp_debug_update(peer, p, NULL, 1)) { | |
3538 | if (!peer->rcvd_attr_printed) { | |
3539 | zlog_debug("%s rcvd UPDATE w/ attr: %s", peer->host, | |
3540 | peer->rcvd_attr_str); | |
3541 | peer->rcvd_attr_printed = 1; | |
3542 | } | |
718e3744 | 3543 | |
a4d82a8a | 3544 | bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, num_labels, |
d62a17ae | 3545 | addpath_id ? 1 : 0, addpath_id, pfx_buf, |
3546 | sizeof(pfx_buf)); | |
3547 | zlog_debug("%s rcvd %s", peer->host, pfx_buf); | |
3548 | } | |
718e3744 | 3549 | |
d62a17ae | 3550 | /* Make new BGP info. */ |
3551 | new = info_make(type, sub_type, 0, peer, attr_new, rn); | |
718e3744 | 3552 | |
d62a17ae | 3553 | /* Update MPLS label */ |
3554 | if (has_valid_label) { | |
18ee8310 | 3555 | extra = bgp_path_info_extra_get(new); |
8ba71050 | 3556 | if (extra->label != label) { |
dbd587da QY |
3557 | memcpy(&extra->label, label, |
3558 | num_labels * sizeof(mpls_label_t)); | |
8ba71050 NS |
3559 | extra->num_labels = num_labels; |
3560 | } | |
b57ba6d2 MK |
3561 | if (!(afi == AFI_L2VPN && safi == SAFI_EVPN)) |
3562 | bgp_set_valid_label(&extra->label[0]); | |
fc9a856f | 3563 | } |
718e3744 | 3564 | |
d62a17ae | 3565 | /* Update Overlay Index */ |
3566 | if (afi == AFI_L2VPN) { | |
3567 | overlay_index_update(new->attr, | |
3568 | evpn == NULL ? NULL : &evpn->eth_s_id, | |
3569 | evpn == NULL ? NULL : &evpn->gw_ip); | |
3570 | } | |
3571 | /* Nexthop reachability check. */ | |
3572 | if ((afi == AFI_IP || afi == AFI_IP6) | |
3573 | && (safi == SAFI_UNICAST || safi == SAFI_LABELED_UNICAST)) { | |
3574 | if (peer->sort == BGP_PEER_EBGP && peer->ttl == 1 | |
3575 | && !CHECK_FLAG(peer->flags, | |
3576 | PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
3577 | && !bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
3578 | connected = 1; | |
3579 | else | |
3580 | connected = 0; | |
3581 | ||
960035b2 | 3582 | if (bgp_find_or_add_nexthop(bgp, bgp, afi, new, NULL, connected) |
a4d82a8a | 3583 | || CHECK_FLAG(peer->flags, PEER_FLAG_IS_RFAPI_HD)) |
18ee8310 | 3584 | bgp_path_info_set_flag(rn, new, BGP_PATH_VALID); |
d62a17ae | 3585 | else { |
3586 | if (BGP_DEBUG(nht, NHT)) { | |
3587 | char buf1[INET6_ADDRSTRLEN]; | |
3588 | inet_ntop(AF_INET, | |
3589 | (const void *)&attr_new->nexthop, | |
3590 | buf1, INET6_ADDRSTRLEN); | |
3591 | zlog_debug("%s(%s): NH unresolved", | |
3592 | __FUNCTION__, buf1); | |
3593 | } | |
18ee8310 | 3594 | bgp_path_info_unset_flag(rn, new, BGP_PATH_VALID); |
d62a17ae | 3595 | } |
3596 | } else | |
18ee8310 | 3597 | bgp_path_info_set_flag(rn, new, BGP_PATH_VALID); |
a82478b9 | 3598 | |
d62a17ae | 3599 | /* Addpath ID */ |
3600 | new->addpath_rx_id = addpath_id; | |
3601 | ||
3602 | /* Increment prefix */ | |
3603 | bgp_aggregate_increment(bgp, p, new, afi, safi); | |
3604 | ||
3605 | /* Register new BGP information. */ | |
18ee8310 | 3606 | bgp_path_info_add(rn, new); |
d62a17ae | 3607 | |
3608 | /* route_node_get lock */ | |
3609 | bgp_unlock_node(rn); | |
558d1fec | 3610 | |
65efcfce | 3611 | #if ENABLE_BGP_VNC |
d62a17ae | 3612 | if (safi == SAFI_MPLS_VPN) { |
3613 | struct bgp_node *prn = NULL; | |
3614 | struct bgp_table *table = NULL; | |
3615 | ||
3616 | prn = bgp_node_get(bgp->rib[afi][safi], (struct prefix *)prd); | |
67009e22 DS |
3617 | if (bgp_node_has_bgp_path_info_data(prn)) { |
3618 | table = bgp_node_get_bgp_table_info(prn); | |
d62a17ae | 3619 | |
3620 | vnc_import_bgp_add_vnc_host_route_mode_resolve_nve( | |
3621 | bgp, prd, table, p, new); | |
3622 | } | |
3623 | bgp_unlock_node(prn); | |
3624 | } | |
65efcfce LB |
3625 | #endif |
3626 | ||
d62a17ae | 3627 | /* If maximum prefix count is configured and current prefix |
3628 | count exeed it. */ | |
3629 | if (bgp_maximum_prefix_overflow(peer, afi, safi, 0)) | |
3630 | return -1; | |
718e3744 | 3631 | |
d62a17ae | 3632 | /* If this is an EVPN route, process for import. */ |
3633 | if (safi == SAFI_EVPN) | |
3634 | bgp_evpn_import_route(bgp, afi, safi, p, new); | |
128ea8ab | 3635 | |
4a11bf2c DL |
3636 | hook_call(bgp_process, bgp, afi, safi, rn, peer, false); |
3637 | ||
d62a17ae | 3638 | /* Process change. */ |
3639 | bgp_process(bgp, rn, afi, safi); | |
718e3744 | 3640 | |
ddb5b488 PZ |
3641 | if (SAFI_UNICAST == safi |
3642 | && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF | |
3643 | || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
3644 | vpn_leak_from_vrf_update(bgp_get_default(), bgp, new); | |
3645 | } | |
3646 | if ((SAFI_MPLS_VPN == safi) | |
3647 | && (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
3648 | ||
3649 | vpn_leak_to_vrf_update(bgp, new); | |
3650 | } | |
28070ee3 | 3651 | #if ENABLE_BGP_VNC |
d62a17ae | 3652 | if (SAFI_MPLS_VPN == safi) { |
3653 | mpls_label_t label_decoded = decode_label(label); | |
28070ee3 | 3654 | |
d62a17ae | 3655 | rfapiProcessUpdate(peer, NULL, p, prd, attr, afi, safi, type, |
3656 | sub_type, &label_decoded); | |
3657 | } | |
3658 | if (SAFI_ENCAP == safi) { | |
3659 | rfapiProcessUpdate(peer, NULL, p, prd, attr, afi, safi, type, | |
3660 | sub_type, NULL); | |
3661 | } | |
28070ee3 PZ |
3662 | #endif |
3663 | ||
d62a17ae | 3664 | return 0; |
718e3744 | 3665 | |
d62a17ae | 3666 | /* This BGP update is filtered. Log the reason then update BGP |
3667 | entry. */ | |
3668 | filtered: | |
4a11bf2c DL |
3669 | hook_call(bgp_process, bgp, afi, safi, rn, peer, true); |
3670 | ||
d62a17ae | 3671 | if (bgp_debug_update(peer, p, NULL, 1)) { |
3672 | if (!peer->rcvd_attr_printed) { | |
3673 | zlog_debug("%s rcvd UPDATE w/ attr: %s", peer->host, | |
3674 | peer->rcvd_attr_str); | |
3675 | peer->rcvd_attr_printed = 1; | |
3676 | } | |
718e3744 | 3677 | |
a4d82a8a | 3678 | bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, num_labels, |
d62a17ae | 3679 | addpath_id ? 1 : 0, addpath_id, pfx_buf, |
3680 | sizeof(pfx_buf)); | |
3681 | zlog_debug("%s rcvd UPDATE about %s -- DENIED due to: %s", | |
3682 | peer->host, pfx_buf, reason); | |
3683 | } | |
128ea8ab | 3684 | |
40381db7 | 3685 | if (pi) { |
d62a17ae | 3686 | /* If this is an EVPN route, un-import it as it is now filtered. |
3687 | */ | |
3688 | if (safi == SAFI_EVPN) | |
40381db7 | 3689 | bgp_evpn_unimport_route(bgp, afi, safi, p, pi); |
718e3744 | 3690 | |
ddb5b488 PZ |
3691 | if (SAFI_UNICAST == safi |
3692 | && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF | |
3693 | || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
3694 | ||
40381db7 | 3695 | vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp, pi); |
ddb5b488 PZ |
3696 | } |
3697 | if ((SAFI_MPLS_VPN == safi) | |
3698 | && (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
3699 | ||
40381db7 | 3700 | vpn_leak_to_vrf_withdraw(bgp, pi); |
ddb5b488 PZ |
3701 | } |
3702 | ||
40381db7 | 3703 | bgp_rib_remove(rn, pi, peer, afi, safi); |
d62a17ae | 3704 | } |
3705 | ||
3706 | bgp_unlock_node(rn); | |
558d1fec | 3707 | |
97736e32 | 3708 | #if ENABLE_BGP_VNC |
d62a17ae | 3709 | /* |
3710 | * Filtered update is treated as an implicit withdrawal (see | |
3711 | * bgp_rib_remove() | |
3712 | * a few lines above) | |
3713 | */ | |
3714 | if ((SAFI_MPLS_VPN == safi) || (SAFI_ENCAP == safi)) { | |
3715 | rfapiProcessWithdraw(peer, NULL, p, prd, NULL, afi, safi, type, | |
3716 | 0); | |
3717 | } | |
97736e32 PZ |
3718 | #endif |
3719 | ||
d62a17ae | 3720 | return 0; |
718e3744 | 3721 | } |
3722 | ||
d7c0a89a | 3723 | int bgp_withdraw(struct peer *peer, struct prefix *p, uint32_t addpath_id, |
d62a17ae | 3724 | struct attr *attr, afi_t afi, safi_t safi, int type, |
a4d82a8a | 3725 | int sub_type, struct prefix_rd *prd, mpls_label_t *label, |
d7c0a89a | 3726 | uint32_t num_labels, struct bgp_route_evpn *evpn) |
718e3744 | 3727 | { |
d62a17ae | 3728 | struct bgp *bgp; |
3729 | char pfx_buf[BGP_PRD_PATH_STRLEN]; | |
3730 | struct bgp_node *rn; | |
40381db7 | 3731 | struct bgp_path_info *pi; |
718e3744 | 3732 | |
28070ee3 | 3733 | #if ENABLE_BGP_VNC |
d62a17ae | 3734 | if ((SAFI_MPLS_VPN == safi) || (SAFI_ENCAP == safi)) { |
3735 | rfapiProcessWithdraw(peer, NULL, p, prd, NULL, afi, safi, type, | |
3736 | 0); | |
3737 | } | |
28070ee3 PZ |
3738 | #endif |
3739 | ||
d62a17ae | 3740 | bgp = peer->bgp; |
3741 | ||
3742 | /* Lookup node. */ | |
3743 | rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, prd); | |
3744 | ||
3745 | /* If peer is soft reconfiguration enabled. Record input packet for | |
3746 | * further calculation. | |
3747 | * | |
3748 | * Cisco IOS 12.4(24)T4 on session establishment sends withdraws for all | |
3749 | * routes that are filtered. This tanks out Quagga RS pretty badly due | |
3750 | * to | |
3751 | * the iteration over all RS clients. | |
3752 | * Since we need to remove the entry from adj_in anyway, do that first | |
3753 | * and | |
3754 | * if there was no entry, we don't need to do anything more. | |
3755 | */ | |
3756 | if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SOFT_RECONFIG) | |
3757 | && peer != bgp->peer_self) | |
3758 | if (!bgp_adj_in_unset(rn, peer, addpath_id)) { | |
b4d46cc9 DL |
3759 | peer->stat_pfx_dup_withdraw++; |
3760 | ||
d62a17ae | 3761 | if (bgp_debug_update(peer, p, NULL, 1)) { |
3762 | bgp_debug_rdpfxpath2str( | |
a4d82a8a | 3763 | afi, safi, prd, p, label, num_labels, |
d62a17ae | 3764 | addpath_id ? 1 : 0, addpath_id, pfx_buf, |
3765 | sizeof(pfx_buf)); | |
3766 | zlog_debug( | |
3767 | "%s withdrawing route %s not in adj-in", | |
3768 | peer->host, pfx_buf); | |
3769 | } | |
3770 | bgp_unlock_node(rn); | |
3771 | return 0; | |
3772 | } | |
cd808e74 | 3773 | |
d62a17ae | 3774 | /* Lookup withdrawn route. */ |
6f94b685 | 3775 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 DS |
3776 | if (pi->peer == peer && pi->type == type |
3777 | && pi->sub_type == sub_type | |
3778 | && pi->addpath_rx_id == addpath_id) | |
d62a17ae | 3779 | break; |
3780 | ||
3781 | /* Logging. */ | |
3782 | if (bgp_debug_update(peer, p, NULL, 1)) { | |
a4d82a8a | 3783 | bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, num_labels, |
d62a17ae | 3784 | addpath_id ? 1 : 0, addpath_id, pfx_buf, |
3785 | sizeof(pfx_buf)); | |
3786 | zlog_debug("%s rcvd UPDATE about %s -- withdrawn", peer->host, | |
3787 | pfx_buf); | |
3788 | } | |
718e3744 | 3789 | |
d62a17ae | 3790 | /* Withdraw specified route from routing table. */ |
40381db7 DS |
3791 | if (pi && !CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)) { |
3792 | bgp_rib_withdraw(rn, pi, peer, afi, safi, prd); | |
ddb5b488 PZ |
3793 | if (SAFI_UNICAST == safi |
3794 | && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF | |
3795 | || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
40381db7 | 3796 | vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp, pi); |
ddb5b488 PZ |
3797 | } |
3798 | if ((SAFI_MPLS_VPN == safi) | |
3799 | && (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
3800 | ||
40381db7 | 3801 | vpn_leak_to_vrf_withdraw(bgp, pi); |
ddb5b488 PZ |
3802 | } |
3803 | } else if (bgp_debug_update(peer, p, NULL, 1)) { | |
a4d82a8a | 3804 | bgp_debug_rdpfxpath2str(afi, safi, prd, p, label, num_labels, |
d62a17ae | 3805 | addpath_id ? 1 : 0, addpath_id, pfx_buf, |
3806 | sizeof(pfx_buf)); | |
3807 | zlog_debug("%s Can't find the route %s", peer->host, pfx_buf); | |
3808 | } | |
718e3744 | 3809 | |
d62a17ae | 3810 | /* Unlock bgp_node_get() lock. */ |
3811 | bgp_unlock_node(rn); | |
3812 | ||
3813 | return 0; | |
718e3744 | 3814 | } |
6b0655a2 | 3815 | |
d62a17ae | 3816 | void bgp_default_originate(struct peer *peer, afi_t afi, safi_t safi, |
3817 | int withdraw) | |
718e3744 | 3818 | { |
d62a17ae | 3819 | struct update_subgroup *subgrp; |
3820 | subgrp = peer_subgroup(peer, afi, safi); | |
3821 | subgroup_default_originate(subgrp, withdraw); | |
3f9c7369 | 3822 | } |
6182d65b | 3823 | |
718e3744 | 3824 | |
3f9c7369 DS |
3825 | /* |
3826 | * bgp_stop_announce_route_timer | |
3827 | */ | |
d62a17ae | 3828 | void bgp_stop_announce_route_timer(struct peer_af *paf) |
3f9c7369 | 3829 | { |
d62a17ae | 3830 | if (!paf->t_announce_route) |
3831 | return; | |
3832 | ||
3833 | THREAD_TIMER_OFF(paf->t_announce_route); | |
718e3744 | 3834 | } |
6b0655a2 | 3835 | |
3f9c7369 DS |
3836 | /* |
3837 | * bgp_announce_route_timer_expired | |
3838 | * | |
3839 | * Callback that is invoked when the route announcement timer for a | |
3840 | * peer_af expires. | |
3841 | */ | |
d62a17ae | 3842 | static int bgp_announce_route_timer_expired(struct thread *t) |
718e3744 | 3843 | { |
d62a17ae | 3844 | struct peer_af *paf; |
3845 | struct peer *peer; | |
558d1fec | 3846 | |
d62a17ae | 3847 | paf = THREAD_ARG(t); |
3848 | peer = paf->peer; | |
718e3744 | 3849 | |
d62a17ae | 3850 | if (peer->status != Established) |
3851 | return 0; | |
3f9c7369 | 3852 | |
d62a17ae | 3853 | if (!peer->afc_nego[paf->afi][paf->safi]) |
3854 | return 0; | |
3f9c7369 | 3855 | |
d62a17ae | 3856 | peer_af_announce_route(paf, 1); |
3857 | return 0; | |
718e3744 | 3858 | } |
3859 | ||
3f9c7369 DS |
3860 | /* |
3861 | * bgp_announce_route | |
3862 | * | |
3863 | * *Triggers* announcement of routes of a given AFI/SAFI to a peer. | |
3864 | */ | |
d62a17ae | 3865 | void bgp_announce_route(struct peer *peer, afi_t afi, safi_t safi) |
3866 | { | |
3867 | struct peer_af *paf; | |
3868 | struct update_subgroup *subgrp; | |
3869 | ||
3870 | paf = peer_af_find(peer, afi, safi); | |
3871 | if (!paf) | |
3872 | return; | |
3873 | subgrp = PAF_SUBGRP(paf); | |
3874 | ||
3875 | /* | |
3876 | * Ignore if subgroup doesn't exist (implies AF is not negotiated) | |
3877 | * or a refresh has already been triggered. | |
3878 | */ | |
3879 | if (!subgrp || paf->t_announce_route) | |
3880 | return; | |
3881 | ||
3882 | /* | |
3883 | * Start a timer to stagger/delay the announce. This serves | |
3884 | * two purposes - announcement can potentially be combined for | |
3885 | * multiple peers and the announcement doesn't happen in the | |
3886 | * vty context. | |
3887 | */ | |
3888 | thread_add_timer_msec(bm->master, bgp_announce_route_timer_expired, paf, | |
3889 | (subgrp->peer_count == 1) | |
3890 | ? BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS | |
3891 | : BGP_ANNOUNCE_ROUTE_DELAY_MS, | |
3892 | &paf->t_announce_route); | |
3f9c7369 DS |
3893 | } |
3894 | ||
3895 | /* | |
3896 | * Announce routes from all AF tables to a peer. | |
3897 | * | |
3898 | * This should ONLY be called when there is a need to refresh the | |
3899 | * routes to the peer based on a policy change for this peer alone | |
3900 | * or a route refresh request received from the peer. | |
3901 | * The operation will result in splitting the peer from its existing | |
3902 | * subgroups and putting it in new subgroups. | |
3903 | */ | |
d62a17ae | 3904 | void bgp_announce_route_all(struct peer *peer) |
718e3744 | 3905 | { |
d62a17ae | 3906 | afi_t afi; |
3907 | safi_t safi; | |
3908 | ||
05c7a1cc QY |
3909 | FOREACH_AFI_SAFI (afi, safi) |
3910 | bgp_announce_route(peer, afi, safi); | |
718e3744 | 3911 | } |
6b0655a2 | 3912 | |
d62a17ae | 3913 | static void bgp_soft_reconfig_table(struct peer *peer, afi_t afi, safi_t safi, |
3914 | struct bgp_table *table, | |
3915 | struct prefix_rd *prd) | |
718e3744 | 3916 | { |
d62a17ae | 3917 | int ret; |
3918 | struct bgp_node *rn; | |
3919 | struct bgp_adj_in *ain; | |
718e3744 | 3920 | |
d62a17ae | 3921 | if (!table) |
3922 | table = peer->bgp->rib[afi][safi]; | |
718e3744 | 3923 | |
d62a17ae | 3924 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) |
3925 | for (ain = rn->adj_in; ain; ain = ain->next) { | |
ea47320b DL |
3926 | if (ain->peer != peer) |
3927 | continue; | |
8692c506 | 3928 | |
6f94b685 DS |
3929 | struct bgp_path_info *pi = |
3930 | bgp_node_get_bgp_path_info(rn); | |
d7c0a89a | 3931 | uint32_t num_labels = 0; |
b57ba6d2 | 3932 | mpls_label_t *label_pnt = NULL; |
8cb687c2 | 3933 | struct bgp_route_evpn evpn; |
b57ba6d2 | 3934 | |
40381db7 DS |
3935 | if (pi && pi->extra) |
3936 | num_labels = pi->extra->num_labels; | |
b57ba6d2 | 3937 | if (num_labels) |
40381db7 | 3938 | label_pnt = &pi->extra->label[0]; |
8cb687c2 DS |
3939 | if (pi) |
3940 | memcpy(&evpn, &pi->attr->evpn_overlay, | |
3941 | sizeof(evpn)); | |
3942 | else | |
3943 | memset(&evpn, 0, sizeof(evpn)); | |
8692c506 | 3944 | |
ea47320b DL |
3945 | ret = bgp_update(peer, &rn->p, ain->addpath_rx_id, |
3946 | ain->attr, afi, safi, ZEBRA_ROUTE_BGP, | |
a4d82a8a | 3947 | BGP_ROUTE_NORMAL, prd, label_pnt, |
8cb687c2 | 3948 | num_labels, 1, &evpn); |
ea47320b DL |
3949 | |
3950 | if (ret < 0) { | |
3951 | bgp_unlock_node(rn); | |
3952 | return; | |
d62a17ae | 3953 | } |
3954 | } | |
718e3744 | 3955 | } |
3956 | ||
d62a17ae | 3957 | void bgp_soft_reconfig_in(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 3958 | { |
d62a17ae | 3959 | struct bgp_node *rn; |
3960 | struct bgp_table *table; | |
718e3744 | 3961 | |
d62a17ae | 3962 | if (peer->status != Established) |
3963 | return; | |
718e3744 | 3964 | |
d62a17ae | 3965 | if ((safi != SAFI_MPLS_VPN) && (safi != SAFI_ENCAP) |
3966 | && (safi != SAFI_EVPN)) | |
3967 | bgp_soft_reconfig_table(peer, afi, safi, NULL, NULL); | |
3968 | else | |
3969 | for (rn = bgp_table_top(peer->bgp->rib[afi][safi]); rn; | |
67009e22 DS |
3970 | rn = bgp_route_next(rn)) { |
3971 | table = bgp_node_get_bgp_table_info(rn); | |
3972 | if (table != NULL) { | |
d62a17ae | 3973 | struct prefix_rd prd; |
67009e22 | 3974 | |
d62a17ae | 3975 | prd.family = AF_UNSPEC; |
3976 | prd.prefixlen = 64; | |
3977 | memcpy(&prd.val, rn->p.u.val, 8); | |
8692c506 | 3978 | |
d62a17ae | 3979 | bgp_soft_reconfig_table(peer, afi, safi, table, |
3980 | &prd); | |
3981 | } | |
67009e22 | 3982 | } |
718e3744 | 3983 | } |
6b0655a2 | 3984 | |
228da428 | 3985 | |
d62a17ae | 3986 | struct bgp_clear_node_queue { |
3987 | struct bgp_node *rn; | |
228da428 CC |
3988 | }; |
3989 | ||
d62a17ae | 3990 | static wq_item_status bgp_clear_route_node(struct work_queue *wq, void *data) |
200df115 | 3991 | { |
d62a17ae | 3992 | struct bgp_clear_node_queue *cnq = data; |
3993 | struct bgp_node *rn = cnq->rn; | |
3994 | struct peer *peer = wq->spec.data; | |
40381db7 | 3995 | struct bgp_path_info *pi; |
3103e8d2 | 3996 | struct bgp *bgp; |
d62a17ae | 3997 | afi_t afi = bgp_node_table(rn)->afi; |
3998 | safi_t safi = bgp_node_table(rn)->safi; | |
3999 | ||
4000 | assert(rn && peer); | |
3103e8d2 | 4001 | bgp = peer->bgp; |
d62a17ae | 4002 | |
4003 | /* It is possible that we have multiple paths for a prefix from a peer | |
4004 | * if that peer is using AddPath. | |
4005 | */ | |
6f94b685 | 4006 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 | 4007 | if (pi->peer != peer) |
ea47320b DL |
4008 | continue; |
4009 | ||
4010 | /* graceful restart STALE flag set. */ | |
4011 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT) | |
4012 | && peer->nsf[afi][safi] | |
40381db7 DS |
4013 | && !CHECK_FLAG(pi->flags, BGP_PATH_STALE) |
4014 | && !CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE)) | |
4015 | bgp_path_info_set_flag(rn, pi, BGP_PATH_STALE); | |
ea47320b DL |
4016 | else { |
4017 | /* If this is an EVPN route, process for | |
4018 | * un-import. */ | |
4019 | if (safi == SAFI_EVPN) | |
40381db7 DS |
4020 | bgp_evpn_unimport_route(bgp, afi, safi, &rn->p, |
4021 | pi); | |
3103e8d2 DS |
4022 | /* Handle withdraw for VRF route-leaking and L3VPN */ |
4023 | if (SAFI_UNICAST == safi | |
4024 | && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF || | |
960035b2 | 4025 | bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { |
3103e8d2 | 4026 | vpn_leak_from_vrf_withdraw(bgp_get_default(), |
40381db7 | 4027 | bgp, pi); |
960035b2 | 4028 | } |
3103e8d2 | 4029 | if (SAFI_MPLS_VPN == safi && |
960035b2 | 4030 | bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) { |
40381db7 | 4031 | vpn_leak_to_vrf_withdraw(bgp, pi); |
960035b2 | 4032 | } |
3103e8d2 | 4033 | |
40381db7 | 4034 | bgp_rib_remove(rn, pi, peer, afi, safi); |
d62a17ae | 4035 | } |
ea47320b | 4036 | } |
d62a17ae | 4037 | return WQ_SUCCESS; |
200df115 | 4038 | } |
4039 | ||
d62a17ae | 4040 | static void bgp_clear_node_queue_del(struct work_queue *wq, void *data) |
200df115 | 4041 | { |
d62a17ae | 4042 | struct bgp_clear_node_queue *cnq = data; |
4043 | struct bgp_node *rn = cnq->rn; | |
4044 | struct bgp_table *table = bgp_node_table(rn); | |
228da428 | 4045 | |
d62a17ae | 4046 | bgp_unlock_node(rn); |
4047 | bgp_table_unlock(table); | |
4048 | XFREE(MTYPE_BGP_CLEAR_NODE_QUEUE, cnq); | |
200df115 | 4049 | } |
4050 | ||
d62a17ae | 4051 | static void bgp_clear_node_complete(struct work_queue *wq) |
200df115 | 4052 | { |
d62a17ae | 4053 | struct peer *peer = wq->spec.data; |
64e580a7 | 4054 | |
d62a17ae | 4055 | /* Tickle FSM to start moving again */ |
4056 | BGP_EVENT_ADD(peer, Clearing_Completed); | |
4057 | ||
4058 | peer_unlock(peer); /* bgp_clear_route */ | |
200df115 | 4059 | } |
718e3744 | 4060 | |
d62a17ae | 4061 | static void bgp_clear_node_queue_init(struct peer *peer) |
200df115 | 4062 | { |
d62a17ae | 4063 | char wname[sizeof("clear xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx")]; |
4064 | ||
4065 | snprintf(wname, sizeof(wname), "clear %s", peer->host); | |
4066 | #undef CLEAR_QUEUE_NAME_LEN | |
4067 | ||
0ce1ca80 | 4068 | peer->clear_node_queue = work_queue_new(bm->master, wname); |
d62a17ae | 4069 | peer->clear_node_queue->spec.hold = 10; |
4070 | peer->clear_node_queue->spec.workfunc = &bgp_clear_route_node; | |
4071 | peer->clear_node_queue->spec.del_item_data = &bgp_clear_node_queue_del; | |
4072 | peer->clear_node_queue->spec.completion_func = &bgp_clear_node_complete; | |
4073 | peer->clear_node_queue->spec.max_retries = 0; | |
4074 | ||
4075 | /* we only 'lock' this peer reference when the queue is actually active | |
4076 | */ | |
4077 | peer->clear_node_queue->spec.data = peer; | |
65ca75e0 PJ |
4078 | } |
4079 | ||
d62a17ae | 4080 | static void bgp_clear_route_table(struct peer *peer, afi_t afi, safi_t safi, |
4081 | struct bgp_table *table) | |
65ca75e0 | 4082 | { |
d62a17ae | 4083 | struct bgp_node *rn; |
4084 | int force = bm->process_main_queue ? 0 : 1; | |
6cf159b9 | 4085 | |
d62a17ae | 4086 | if (!table) |
4087 | table = peer->bgp->rib[afi][safi]; | |
dc83d712 | 4088 | |
d62a17ae | 4089 | /* If still no table => afi/safi isn't configured at all or smth. */ |
4090 | if (!table) | |
4091 | return; | |
dc83d712 | 4092 | |
d62a17ae | 4093 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { |
40381db7 | 4094 | struct bgp_path_info *pi, *next; |
d62a17ae | 4095 | struct bgp_adj_in *ain; |
4096 | struct bgp_adj_in *ain_next; | |
4097 | ||
4098 | /* XXX:TODO: This is suboptimal, every non-empty route_node is | |
4099 | * queued for every clearing peer, regardless of whether it is | |
4100 | * relevant to the peer at hand. | |
4101 | * | |
4102 | * Overview: There are 3 different indices which need to be | |
4103 | * scrubbed, potentially, when a peer is removed: | |
4104 | * | |
4105 | * 1 peer's routes visible via the RIB (ie accepted routes) | |
4106 | * 2 peer's routes visible by the (optional) peer's adj-in index | |
4107 | * 3 other routes visible by the peer's adj-out index | |
4108 | * | |
4109 | * 3 there is no hurry in scrubbing, once the struct peer is | |
4110 | * removed from bgp->peer, we could just GC such deleted peer's | |
4111 | * adj-outs at our leisure. | |
4112 | * | |
4113 | * 1 and 2 must be 'scrubbed' in some way, at least made | |
4114 | * invisible via RIB index before peer session is allowed to be | |
4115 | * brought back up. So one needs to know when such a 'search' is | |
4116 | * complete. | |
4117 | * | |
4118 | * Ideally: | |
4119 | * | |
4120 | * - there'd be a single global queue or a single RIB walker | |
4121 | * - rather than tracking which route_nodes still need to be | |
4122 | * examined on a peer basis, we'd track which peers still | |
4123 | * aren't cleared | |
4124 | * | |
4125 | * Given that our per-peer prefix-counts now should be reliable, | |
4126 | * this may actually be achievable. It doesn't seem to be a huge | |
4127 | * problem at this time, | |
4128 | * | |
4129 | * It is possible that we have multiple paths for a prefix from | |
4130 | * a peer | |
4131 | * if that peer is using AddPath. | |
4132 | */ | |
4133 | ain = rn->adj_in; | |
4134 | while (ain) { | |
4135 | ain_next = ain->next; | |
4136 | ||
4137 | if (ain->peer == peer) { | |
4138 | bgp_adj_in_remove(rn, ain); | |
4139 | bgp_unlock_node(rn); | |
4140 | } | |
4141 | ||
4142 | ain = ain_next; | |
4143 | } | |
4144 | ||
6f94b685 | 4145 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = next) { |
40381db7 DS |
4146 | next = pi->next; |
4147 | if (pi->peer != peer) | |
d62a17ae | 4148 | continue; |
4149 | ||
4150 | if (force) | |
40381db7 | 4151 | bgp_path_info_reap(rn, pi); |
d62a17ae | 4152 | else { |
4153 | struct bgp_clear_node_queue *cnq; | |
4154 | ||
4155 | /* both unlocked in bgp_clear_node_queue_del */ | |
4156 | bgp_table_lock(bgp_node_table(rn)); | |
4157 | bgp_lock_node(rn); | |
4158 | cnq = XCALLOC( | |
4159 | MTYPE_BGP_CLEAR_NODE_QUEUE, | |
4160 | sizeof(struct bgp_clear_node_queue)); | |
4161 | cnq->rn = rn; | |
4162 | work_queue_add(peer->clear_node_queue, cnq); | |
4163 | break; | |
4164 | } | |
4165 | } | |
4166 | } | |
4167 | return; | |
4168 | } | |
4169 | ||
4170 | void bgp_clear_route(struct peer *peer, afi_t afi, safi_t safi) | |
4171 | { | |
4172 | struct bgp_node *rn; | |
4173 | struct bgp_table *table; | |
4174 | ||
4175 | if (peer->clear_node_queue == NULL) | |
4176 | bgp_clear_node_queue_init(peer); | |
4177 | ||
4178 | /* bgp_fsm.c keeps sessions in state Clearing, not transitioning to | |
4179 | * Idle until it receives a Clearing_Completed event. This protects | |
4180 | * against peers which flap faster than we can we clear, which could | |
4181 | * lead to: | |
4182 | * | |
4183 | * a) race with routes from the new session being installed before | |
4184 | * clear_route_node visits the node (to delete the route of that | |
4185 | * peer) | |
4186 | * b) resource exhaustion, clear_route_node likely leads to an entry | |
4187 | * on the process_main queue. Fast-flapping could cause that queue | |
4188 | * to grow and grow. | |
4189 | */ | |
4190 | ||
4191 | /* lock peer in assumption that clear-node-queue will get nodes; if so, | |
4192 | * the unlock will happen upon work-queue completion; other wise, the | |
4193 | * unlock happens at the end of this function. | |
4194 | */ | |
4195 | if (!peer->clear_node_queue->thread) | |
4196 | peer_lock(peer); | |
4197 | ||
4198 | if (safi != SAFI_MPLS_VPN && safi != SAFI_ENCAP && safi != SAFI_EVPN) | |
4199 | bgp_clear_route_table(peer, afi, safi, NULL); | |
4200 | else | |
4201 | for (rn = bgp_table_top(peer->bgp->rib[afi][safi]); rn; | |
67009e22 DS |
4202 | rn = bgp_route_next(rn)) { |
4203 | table = bgp_node_get_bgp_table_info(rn); | |
4204 | if (!table) | |
4205 | continue; | |
4206 | ||
4207 | bgp_clear_route_table(peer, afi, safi, table); | |
4208 | } | |
d62a17ae | 4209 | |
4210 | /* unlock if no nodes got added to the clear-node-queue. */ | |
4211 | if (!peer->clear_node_queue->thread) | |
4212 | peer_unlock(peer); | |
718e3744 | 4213 | } |
d62a17ae | 4214 | |
4215 | void bgp_clear_route_all(struct peer *peer) | |
718e3744 | 4216 | { |
d62a17ae | 4217 | afi_t afi; |
4218 | safi_t safi; | |
718e3744 | 4219 | |
05c7a1cc QY |
4220 | FOREACH_AFI_SAFI (afi, safi) |
4221 | bgp_clear_route(peer, afi, safi); | |
65efcfce LB |
4222 | |
4223 | #if ENABLE_BGP_VNC | |
d62a17ae | 4224 | rfapiProcessPeerDown(peer); |
65efcfce | 4225 | #endif |
718e3744 | 4226 | } |
4227 | ||
d62a17ae | 4228 | void bgp_clear_adj_in(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 4229 | { |
d62a17ae | 4230 | struct bgp_table *table; |
4231 | struct bgp_node *rn; | |
4232 | struct bgp_adj_in *ain; | |
4233 | struct bgp_adj_in *ain_next; | |
718e3744 | 4234 | |
d62a17ae | 4235 | table = peer->bgp->rib[afi][safi]; |
718e3744 | 4236 | |
d62a17ae | 4237 | /* It is possible that we have multiple paths for a prefix from a peer |
4238 | * if that peer is using AddPath. | |
4239 | */ | |
4240 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { | |
4241 | ain = rn->adj_in; | |
43143c8f | 4242 | |
d62a17ae | 4243 | while (ain) { |
4244 | ain_next = ain->next; | |
43143c8f | 4245 | |
d62a17ae | 4246 | if (ain->peer == peer) { |
4247 | bgp_adj_in_remove(rn, ain); | |
4248 | bgp_unlock_node(rn); | |
4249 | } | |
43143c8f | 4250 | |
d62a17ae | 4251 | ain = ain_next; |
4252 | } | |
4253 | } | |
718e3744 | 4254 | } |
93406d87 | 4255 | |
d62a17ae | 4256 | void bgp_clear_stale_route(struct peer *peer, afi_t afi, safi_t safi) |
4257 | { | |
4258 | struct bgp_node *rn; | |
40381db7 | 4259 | struct bgp_path_info *pi; |
d62a17ae | 4260 | struct bgp_table *table; |
4261 | ||
4262 | if (safi == SAFI_MPLS_VPN) { | |
4263 | for (rn = bgp_table_top(peer->bgp->rib[afi][safi]); rn; | |
4264 | rn = bgp_route_next(rn)) { | |
4265 | struct bgp_node *rm; | |
d62a17ae | 4266 | |
4267 | /* look for neighbor in tables */ | |
67009e22 DS |
4268 | table = bgp_node_get_bgp_table_info(rn); |
4269 | if (!table) | |
ea47320b DL |
4270 | continue; |
4271 | ||
4272 | for (rm = bgp_table_top(table); rm; | |
4273 | rm = bgp_route_next(rm)) | |
6f94b685 DS |
4274 | for (pi = bgp_node_get_bgp_path_info(rm); pi; |
4275 | pi = pi->next) { | |
40381db7 | 4276 | if (pi->peer != peer) |
ea47320b | 4277 | continue; |
40381db7 | 4278 | if (!CHECK_FLAG(pi->flags, |
1defdda8 | 4279 | BGP_PATH_STALE)) |
ea47320b DL |
4280 | break; |
4281 | ||
40381db7 | 4282 | bgp_rib_remove(rm, pi, peer, afi, safi); |
ea47320b DL |
4283 | break; |
4284 | } | |
d62a17ae | 4285 | } |
4286 | } else { | |
4287 | for (rn = bgp_table_top(peer->bgp->rib[afi][safi]); rn; | |
4288 | rn = bgp_route_next(rn)) | |
6f94b685 DS |
4289 | for (pi = bgp_node_get_bgp_path_info(rn); pi; |
4290 | pi = pi->next) { | |
40381db7 | 4291 | if (pi->peer != peer) |
ea47320b | 4292 | continue; |
40381db7 | 4293 | if (!CHECK_FLAG(pi->flags, BGP_PATH_STALE)) |
d62a17ae | 4294 | break; |
40381db7 | 4295 | bgp_rib_remove(rn, pi, peer, afi, safi); |
ea47320b DL |
4296 | break; |
4297 | } | |
d62a17ae | 4298 | } |
93406d87 | 4299 | } |
6b0655a2 | 4300 | |
9dac9fc8 DA |
4301 | int bgp_outbound_policy_exists(struct peer *peer, struct bgp_filter *filter) |
4302 | { | |
4303 | if (peer->sort == BGP_PEER_EBGP | |
4304 | && (ROUTE_MAP_OUT_NAME(filter) || PREFIX_LIST_OUT_NAME(filter) | |
4305 | || FILTER_LIST_OUT_NAME(filter) | |
4306 | || DISTRIBUTE_OUT_NAME(filter))) | |
4307 | return 1; | |
4308 | return 0; | |
4309 | } | |
4310 | ||
4311 | int bgp_inbound_policy_exists(struct peer *peer, struct bgp_filter *filter) | |
4312 | { | |
4313 | if (peer->sort == BGP_PEER_EBGP | |
4314 | && (ROUTE_MAP_IN_NAME(filter) || PREFIX_LIST_IN_NAME(filter) | |
4315 | || FILTER_LIST_IN_NAME(filter) | |
4316 | || DISTRIBUTE_IN_NAME(filter))) | |
4317 | return 1; | |
4318 | return 0; | |
4319 | } | |
4320 | ||
568e10ca | 4321 | static void bgp_cleanup_table(struct bgp *bgp, struct bgp_table *table, |
4322 | safi_t safi) | |
bb86c601 | 4323 | { |
d62a17ae | 4324 | struct bgp_node *rn; |
40381db7 | 4325 | struct bgp_path_info *pi; |
4b7e6066 | 4326 | struct bgp_path_info *next; |
bb86c601 | 4327 | |
d62a17ae | 4328 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) |
6f94b685 | 4329 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = next) { |
40381db7 | 4330 | next = pi->next; |
1b7bb747 CS |
4331 | |
4332 | /* Unimport EVPN routes from VRFs */ | |
4333 | if (safi == SAFI_EVPN) | |
4334 | bgp_evpn_unimport_route(bgp, AFI_L2VPN, | |
4335 | SAFI_EVPN, | |
4336 | &rn->p, pi); | |
4337 | ||
40381db7 DS |
4338 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) |
4339 | && pi->type == ZEBRA_ROUTE_BGP | |
4340 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
4341 | || pi->sub_type == BGP_ROUTE_AGGREGATE | |
4342 | || pi->sub_type == BGP_ROUTE_IMPORTED)) { | |
ddb5b488 | 4343 | |
d62a17ae | 4344 | if (bgp_fibupd_safi(safi)) |
40381db7 DS |
4345 | bgp_zebra_withdraw(&rn->p, pi, bgp, |
4346 | safi); | |
4347 | bgp_path_info_reap(rn, pi); | |
d62a17ae | 4348 | } |
4349 | } | |
bb86c601 LB |
4350 | } |
4351 | ||
718e3744 | 4352 | /* Delete all kernel routes. */ |
d62a17ae | 4353 | void bgp_cleanup_routes(struct bgp *bgp) |
4354 | { | |
4355 | afi_t afi; | |
4356 | struct bgp_node *rn; | |
67009e22 | 4357 | struct bgp_table *table; |
d62a17ae | 4358 | |
4359 | for (afi = AFI_IP; afi < AFI_MAX; ++afi) { | |
4360 | if (afi == AFI_L2VPN) | |
4361 | continue; | |
568e10ca | 4362 | bgp_cleanup_table(bgp, bgp->rib[afi][SAFI_UNICAST], |
4363 | SAFI_UNICAST); | |
d62a17ae | 4364 | /* |
4365 | * VPN and ENCAP and EVPN tables are two-level (RD is top level) | |
4366 | */ | |
4367 | if (afi != AFI_L2VPN) { | |
4368 | safi_t safi; | |
4369 | safi = SAFI_MPLS_VPN; | |
4370 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
4371 | rn = bgp_route_next(rn)) { | |
67009e22 DS |
4372 | table = bgp_node_get_bgp_table_info(rn); |
4373 | if (table != NULL) { | |
4374 | bgp_cleanup_table(bgp, table, safi); | |
4375 | bgp_table_finish(&table); | |
4376 | bgp_node_set_bgp_table_info(rn, NULL); | |
d62a17ae | 4377 | bgp_unlock_node(rn); |
4378 | } | |
4379 | } | |
4380 | safi = SAFI_ENCAP; | |
4381 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
4382 | rn = bgp_route_next(rn)) { | |
67009e22 DS |
4383 | table = bgp_node_get_bgp_table_info(rn); |
4384 | if (table != NULL) { | |
4385 | bgp_cleanup_table(bgp, table, safi); | |
4386 | bgp_table_finish(&table); | |
4387 | bgp_node_set_bgp_table_info(rn, NULL); | |
d62a17ae | 4388 | bgp_unlock_node(rn); |
4389 | } | |
4390 | } | |
4391 | } | |
4392 | } | |
4393 | for (rn = bgp_table_top(bgp->rib[AFI_L2VPN][SAFI_EVPN]); rn; | |
4394 | rn = bgp_route_next(rn)) { | |
67009e22 DS |
4395 | table = bgp_node_get_bgp_table_info(rn); |
4396 | if (table != NULL) { | |
4397 | bgp_cleanup_table(bgp, table, SAFI_EVPN); | |
4398 | bgp_table_finish(&table); | |
4399 | bgp_node_set_bgp_table_info(rn, NULL); | |
d62a17ae | 4400 | bgp_unlock_node(rn); |
4401 | } | |
bb86c601 | 4402 | } |
718e3744 | 4403 | } |
4404 | ||
d62a17ae | 4405 | void bgp_reset(void) |
718e3744 | 4406 | { |
d62a17ae | 4407 | vty_reset(); |
4408 | bgp_zclient_reset(); | |
4409 | access_list_reset(); | |
4410 | prefix_list_reset(); | |
718e3744 | 4411 | } |
6b0655a2 | 4412 | |
d62a17ae | 4413 | static int bgp_addpath_encode_rx(struct peer *peer, afi_t afi, safi_t safi) |
adbac85e | 4414 | { |
d62a17ae | 4415 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ADDPATH_AF_RX_ADV) |
4416 | && CHECK_FLAG(peer->af_cap[afi][safi], | |
4417 | PEER_CAP_ADDPATH_AF_TX_RCV)); | |
adbac85e DW |
4418 | } |
4419 | ||
718e3744 | 4420 | /* Parse NLRI stream. Withdraw NLRI is recognized by NULL attr |
4421 | value. */ | |
d62a17ae | 4422 | int bgp_nlri_parse_ip(struct peer *peer, struct attr *attr, |
4423 | struct bgp_nlri *packet) | |
4424 | { | |
d7c0a89a QY |
4425 | uint8_t *pnt; |
4426 | uint8_t *lim; | |
d62a17ae | 4427 | struct prefix p; |
4428 | int psize; | |
4429 | int ret; | |
4430 | afi_t afi; | |
4431 | safi_t safi; | |
4432 | int addpath_encoded; | |
d7c0a89a | 4433 | uint32_t addpath_id; |
d62a17ae | 4434 | |
d62a17ae | 4435 | pnt = packet->nlri; |
4436 | lim = pnt + packet->length; | |
4437 | afi = packet->afi; | |
4438 | safi = packet->safi; | |
4439 | addpath_id = 0; | |
4440 | addpath_encoded = bgp_addpath_encode_rx(peer, afi, safi); | |
4441 | ||
4442 | /* RFC4771 6.3 The NLRI field in the UPDATE message is checked for | |
4443 | syntactic validity. If the field is syntactically incorrect, | |
4444 | then the Error Subcode is set to Invalid Network Field. */ | |
4445 | for (; pnt < lim; pnt += psize) { | |
4446 | /* Clear prefix structure. */ | |
4447 | memset(&p, 0, sizeof(struct prefix)); | |
4448 | ||
4449 | if (addpath_encoded) { | |
4450 | ||
4451 | /* When packet overflow occurs return immediately. */ | |
4452 | if (pnt + BGP_ADDPATH_ID_LEN > lim) | |
513386b5 | 4453 | return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW; |
d62a17ae | 4454 | |
4455 | addpath_id = ntohl(*((uint32_t *)pnt)); | |
4456 | pnt += BGP_ADDPATH_ID_LEN; | |
4457 | } | |
718e3744 | 4458 | |
d62a17ae | 4459 | /* Fetch prefix length. */ |
4460 | p.prefixlen = *pnt++; | |
4461 | /* afi/safi validity already verified by caller, | |
4462 | * bgp_update_receive */ | |
4463 | p.family = afi2family(afi); | |
4464 | ||
4465 | /* Prefix length check. */ | |
4466 | if (p.prefixlen > prefix_blen(&p) * 8) { | |
af4c2728 | 4467 | flog_err( |
e50f7cfd | 4468 | EC_BGP_UPDATE_RCV, |
14454c9f | 4469 | "%s [Error] Update packet error (wrong prefix length %d for afi %u)", |
d62a17ae | 4470 | peer->host, p.prefixlen, packet->afi); |
513386b5 | 4471 | return BGP_NLRI_PARSE_ERROR_PREFIX_LENGTH; |
d62a17ae | 4472 | } |
6b0655a2 | 4473 | |
d62a17ae | 4474 | /* Packet size overflow check. */ |
4475 | psize = PSIZE(p.prefixlen); | |
4476 | ||
4477 | /* When packet overflow occur return immediately. */ | |
4478 | if (pnt + psize > lim) { | |
af4c2728 | 4479 | flog_err( |
e50f7cfd | 4480 | EC_BGP_UPDATE_RCV, |
d62a17ae | 4481 | "%s [Error] Update packet error (prefix length %d overflows packet)", |
4482 | peer->host, p.prefixlen); | |
513386b5 | 4483 | return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW; |
d62a17ae | 4484 | } |
4485 | ||
4486 | /* Defensive coding, double-check the psize fits in a struct | |
4487 | * prefix */ | |
4488 | if (psize > (ssize_t)sizeof(p.u)) { | |
af4c2728 | 4489 | flog_err( |
e50f7cfd | 4490 | EC_BGP_UPDATE_RCV, |
d62a17ae | 4491 | "%s [Error] Update packet error (prefix length %d too large for prefix storage %zu)", |
4492 | peer->host, p.prefixlen, sizeof(p.u)); | |
513386b5 | 4493 | return BGP_NLRI_PARSE_ERROR_PACKET_LENGTH; |
d62a17ae | 4494 | } |
4495 | ||
4496 | /* Fetch prefix from NLRI packet. */ | |
a85297a7 | 4497 | memcpy(p.u.val, pnt, psize); |
d62a17ae | 4498 | |
4499 | /* Check address. */ | |
4500 | if (afi == AFI_IP && safi == SAFI_UNICAST) { | |
4501 | if (IN_CLASSD(ntohl(p.u.prefix4.s_addr))) { | |
4502 | /* From RFC4271 Section 6.3: | |
4503 | * | |
4504 | * If a prefix in the NLRI field is semantically | |
4505 | * incorrect | |
4506 | * (e.g., an unexpected multicast IP address), | |
4507 | * an error SHOULD | |
4508 | * be logged locally, and the prefix SHOULD be | |
4509 | * ignored. | |
a4d82a8a | 4510 | */ |
af4c2728 | 4511 | flog_err( |
e50f7cfd | 4512 | EC_BGP_UPDATE_RCV, |
d62a17ae | 4513 | "%s: IPv4 unicast NLRI is multicast address %s, ignoring", |
4514 | peer->host, inet_ntoa(p.u.prefix4)); | |
4515 | continue; | |
4516 | } | |
4517 | } | |
4518 | ||
4519 | /* Check address. */ | |
4520 | if (afi == AFI_IP6 && safi == SAFI_UNICAST) { | |
4521 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) { | |
4522 | char buf[BUFSIZ]; | |
4523 | ||
af4c2728 | 4524 | flog_err( |
e50f7cfd | 4525 | EC_BGP_UPDATE_RCV, |
d62a17ae | 4526 | "%s: IPv6 unicast NLRI is link-local address %s, ignoring", |
4527 | peer->host, | |
4528 | inet_ntop(AF_INET6, &p.u.prefix6, buf, | |
4529 | BUFSIZ)); | |
4530 | ||
4531 | continue; | |
4532 | } | |
4533 | if (IN6_IS_ADDR_MULTICAST(&p.u.prefix6)) { | |
4534 | char buf[BUFSIZ]; | |
4535 | ||
af4c2728 | 4536 | flog_err( |
e50f7cfd | 4537 | EC_BGP_UPDATE_RCV, |
d62a17ae | 4538 | "%s: IPv6 unicast NLRI is multicast address %s, ignoring", |
4539 | peer->host, | |
4540 | inet_ntop(AF_INET6, &p.u.prefix6, buf, | |
4541 | BUFSIZ)); | |
4542 | ||
4543 | continue; | |
4544 | } | |
4545 | } | |
4546 | ||
4547 | /* Normal process. */ | |
4548 | if (attr) | |
4549 | ret = bgp_update(peer, &p, addpath_id, attr, afi, safi, | |
4550 | ZEBRA_ROUTE_BGP, BGP_ROUTE_NORMAL, | |
b57ba6d2 | 4551 | NULL, NULL, 0, 0, NULL); |
d62a17ae | 4552 | else |
4553 | ret = bgp_withdraw(peer, &p, addpath_id, attr, afi, | |
4554 | safi, ZEBRA_ROUTE_BGP, | |
a4d82a8a PZ |
4555 | BGP_ROUTE_NORMAL, NULL, NULL, 0, |
4556 | NULL); | |
d62a17ae | 4557 | |
513386b5 DA |
4558 | /* Do not send BGP notification twice when maximum-prefix count |
4559 | * overflow. */ | |
4560 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) | |
4561 | return BGP_NLRI_PARSE_ERROR_PREFIX_OVERFLOW; | |
4562 | ||
4563 | /* Address family configuration mismatch. */ | |
d62a17ae | 4564 | if (ret < 0) |
513386b5 | 4565 | return BGP_NLRI_PARSE_ERROR_ADDRESS_FAMILY; |
d62a17ae | 4566 | } |
4567 | ||
4568 | /* Packet length consistency check. */ | |
4569 | if (pnt != lim) { | |
af4c2728 | 4570 | flog_err( |
e50f7cfd | 4571 | EC_BGP_UPDATE_RCV, |
d62a17ae | 4572 | "%s [Error] Update packet error (prefix length mismatch with total length)", |
4573 | peer->host); | |
513386b5 | 4574 | return BGP_NLRI_PARSE_ERROR_PACKET_LENGTH; |
d62a17ae | 4575 | } |
6b0655a2 | 4576 | |
513386b5 | 4577 | return BGP_NLRI_PARSE_OK; |
718e3744 | 4578 | } |
4579 | ||
d62a17ae | 4580 | static struct bgp_static *bgp_static_new(void) |
718e3744 | 4581 | { |
d62a17ae | 4582 | return XCALLOC(MTYPE_BGP_STATIC, sizeof(struct bgp_static)); |
718e3744 | 4583 | } |
4584 | ||
d62a17ae | 4585 | static void bgp_static_free(struct bgp_static *bgp_static) |
fee0f4c6 | 4586 | { |
0a22ddfb | 4587 | XFREE(MTYPE_ROUTE_MAP_NAME, bgp_static->rmap.name); |
b4897fa5 | 4588 | route_map_counter_decrement(bgp_static->rmap.map); |
4589 | ||
0a22ddfb | 4590 | XFREE(MTYPE_ATTR, bgp_static->eth_s_id); |
d62a17ae | 4591 | XFREE(MTYPE_BGP_STATIC, bgp_static); |
4592 | } | |
4593 | ||
4594 | void bgp_static_update(struct bgp *bgp, struct prefix *p, | |
4595 | struct bgp_static *bgp_static, afi_t afi, safi_t safi) | |
4596 | { | |
4597 | struct bgp_node *rn; | |
40381db7 | 4598 | struct bgp_path_info *pi; |
4b7e6066 | 4599 | struct bgp_path_info *new; |
40381db7 | 4600 | struct bgp_path_info rmap_path; |
d62a17ae | 4601 | struct attr attr; |
4602 | struct attr *attr_new; | |
b68885f9 | 4603 | route_map_result_t ret; |
65efcfce | 4604 | #if ENABLE_BGP_VNC |
d62a17ae | 4605 | int vnc_implicit_withdraw = 0; |
65efcfce | 4606 | #endif |
fee0f4c6 | 4607 | |
d62a17ae | 4608 | assert(bgp_static); |
4609 | if (!bgp_static) | |
4610 | return; | |
dd8103a9 | 4611 | |
d62a17ae | 4612 | rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, NULL); |
718e3744 | 4613 | |
d62a17ae | 4614 | bgp_attr_default_set(&attr, BGP_ORIGIN_IGP); |
718e3744 | 4615 | |
d62a17ae | 4616 | attr.nexthop = bgp_static->igpnexthop; |
4617 | attr.med = bgp_static->igpmetric; | |
4618 | attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC); | |
41367172 | 4619 | |
d62a17ae | 4620 | if (bgp_static->atomic) |
4621 | attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE); | |
6cf48acc | 4622 | |
d62a17ae | 4623 | /* Store label index, if required. */ |
4624 | if (bgp_static->label_index != BGP_INVALID_LABEL_INDEX) { | |
4625 | attr.label_index = bgp_static->label_index; | |
4626 | attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_PREFIX_SID); | |
4627 | } | |
718e3744 | 4628 | |
d62a17ae | 4629 | /* Apply route-map. */ |
4630 | if (bgp_static->rmap.name) { | |
4631 | struct attr attr_tmp = attr; | |
80ced710 | 4632 | |
40381db7 DS |
4633 | memset(&rmap_path, 0, sizeof(struct bgp_path_info)); |
4634 | rmap_path.peer = bgp->peer_self; | |
4635 | rmap_path.attr = &attr_tmp; | |
fee0f4c6 | 4636 | |
d62a17ae | 4637 | SET_FLAG(bgp->peer_self->rmap_type, PEER_RMAP_TYPE_NETWORK); |
286e1e71 | 4638 | |
40381db7 DS |
4639 | ret = route_map_apply(bgp_static->rmap.map, p, RMAP_BGP, |
4640 | &rmap_path); | |
fee0f4c6 | 4641 | |
d62a17ae | 4642 | bgp->peer_self->rmap_type = 0; |
718e3744 | 4643 | |
d62a17ae | 4644 | if (ret == RMAP_DENYMATCH) { |
4645 | /* Free uninterned attribute. */ | |
4646 | bgp_attr_flush(&attr_tmp); | |
718e3744 | 4647 | |
d62a17ae | 4648 | /* Unintern original. */ |
4649 | aspath_unintern(&attr.aspath); | |
4650 | bgp_static_withdraw(bgp, p, afi, safi); | |
4651 | return; | |
4652 | } | |
7f323236 DW |
4653 | |
4654 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) | |
4655 | bgp_attr_add_gshut_community(&attr_tmp); | |
4656 | ||
d62a17ae | 4657 | attr_new = bgp_attr_intern(&attr_tmp); |
7f323236 DW |
4658 | } else { |
4659 | ||
4660 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) | |
4661 | bgp_attr_add_gshut_community(&attr); | |
4662 | ||
d62a17ae | 4663 | attr_new = bgp_attr_intern(&attr); |
7f323236 | 4664 | } |
718e3744 | 4665 | |
6f94b685 | 4666 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 DS |
4667 | if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP |
4668 | && pi->sub_type == BGP_ROUTE_STATIC) | |
d62a17ae | 4669 | break; |
4670 | ||
40381db7 DS |
4671 | if (pi) { |
4672 | if (attrhash_cmp(pi->attr, attr_new) | |
4673 | && !CHECK_FLAG(pi->flags, BGP_PATH_REMOVED) | |
d62a17ae | 4674 | && !bgp_flag_check(bgp, BGP_FLAG_FORCE_STATIC_PROCESS)) { |
4675 | bgp_unlock_node(rn); | |
4676 | bgp_attr_unintern(&attr_new); | |
4677 | aspath_unintern(&attr.aspath); | |
4678 | return; | |
4679 | } else { | |
4680 | /* The attribute is changed. */ | |
40381db7 | 4681 | bgp_path_info_set_flag(rn, pi, BGP_PATH_ATTR_CHANGED); |
d62a17ae | 4682 | |
4683 | /* Rewrite BGP route information. */ | |
40381db7 DS |
4684 | if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) |
4685 | bgp_path_info_restore(rn, pi); | |
d62a17ae | 4686 | else |
40381db7 | 4687 | bgp_aggregate_decrement(bgp, p, pi, afi, safi); |
65efcfce | 4688 | #if ENABLE_BGP_VNC |
d62a17ae | 4689 | if ((afi == AFI_IP || afi == AFI_IP6) |
4690 | && (safi == SAFI_UNICAST)) { | |
40381db7 | 4691 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) { |
d62a17ae | 4692 | /* |
4693 | * Implicit withdraw case. | |
40381db7 | 4694 | * We have to do this before pi is |
d62a17ae | 4695 | * changed |
4696 | */ | |
4697 | ++vnc_implicit_withdraw; | |
40381db7 | 4698 | vnc_import_bgp_del_route(bgp, p, pi); |
d62a17ae | 4699 | vnc_import_bgp_exterior_del_route( |
40381db7 | 4700 | bgp, p, pi); |
d62a17ae | 4701 | } |
4702 | } | |
65efcfce | 4703 | #endif |
40381db7 DS |
4704 | bgp_attr_unintern(&pi->attr); |
4705 | pi->attr = attr_new; | |
4706 | pi->uptime = bgp_clock(); | |
65efcfce | 4707 | #if ENABLE_BGP_VNC |
d62a17ae | 4708 | if ((afi == AFI_IP || afi == AFI_IP6) |
4709 | && (safi == SAFI_UNICAST)) { | |
4710 | if (vnc_implicit_withdraw) { | |
40381db7 | 4711 | vnc_import_bgp_add_route(bgp, p, pi); |
d62a17ae | 4712 | vnc_import_bgp_exterior_add_route( |
40381db7 | 4713 | bgp, p, pi); |
d62a17ae | 4714 | } |
4715 | } | |
65efcfce | 4716 | #endif |
718e3744 | 4717 | |
d62a17ae | 4718 | /* Nexthop reachability check. */ |
4719 | if (bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
4720 | && (safi == SAFI_UNICAST | |
4721 | || safi == SAFI_LABELED_UNICAST)) { | |
960035b2 PZ |
4722 | |
4723 | struct bgp *bgp_nexthop = bgp; | |
4724 | ||
40381db7 DS |
4725 | if (pi->extra && pi->extra->bgp_orig) |
4726 | bgp_nexthop = pi->extra->bgp_orig; | |
960035b2 PZ |
4727 | |
4728 | if (bgp_find_or_add_nexthop(bgp, bgp_nexthop, | |
40381db7 DS |
4729 | afi, pi, NULL, 0)) |
4730 | bgp_path_info_set_flag(rn, pi, | |
18ee8310 | 4731 | BGP_PATH_VALID); |
d62a17ae | 4732 | else { |
4733 | if (BGP_DEBUG(nht, NHT)) { | |
4734 | char buf1[INET6_ADDRSTRLEN]; | |
4735 | inet_ntop(p->family, | |
4736 | &p->u.prefix, buf1, | |
4737 | INET6_ADDRSTRLEN); | |
4738 | zlog_debug( | |
4739 | "%s(%s): Route not in table, not advertising", | |
4740 | __FUNCTION__, buf1); | |
4741 | } | |
18ee8310 | 4742 | bgp_path_info_unset_flag( |
40381db7 | 4743 | rn, pi, BGP_PATH_VALID); |
d62a17ae | 4744 | } |
4745 | } else { | |
4746 | /* Delete the NHT structure if any, if we're | |
4747 | * toggling between | |
4748 | * enabling/disabling import check. We | |
4749 | * deregister the route | |
4750 | * from NHT to avoid overloading NHT and the | |
4751 | * process interaction | |
4752 | */ | |
40381db7 DS |
4753 | bgp_unlink_nexthop(pi); |
4754 | bgp_path_info_set_flag(rn, pi, BGP_PATH_VALID); | |
d62a17ae | 4755 | } |
4756 | /* Process change. */ | |
40381db7 | 4757 | bgp_aggregate_increment(bgp, p, pi, afi, safi); |
d62a17ae | 4758 | bgp_process(bgp, rn, afi, safi); |
ddb5b488 PZ |
4759 | |
4760 | if (SAFI_UNICAST == safi | |
4761 | && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF | |
4762 | || bgp->inst_type | |
4763 | == BGP_INSTANCE_TYPE_DEFAULT)) { | |
4764 | vpn_leak_from_vrf_update(bgp_get_default(), bgp, | |
40381db7 | 4765 | pi); |
ddb5b488 PZ |
4766 | } |
4767 | ||
d62a17ae | 4768 | bgp_unlock_node(rn); |
4769 | aspath_unintern(&attr.aspath); | |
4770 | return; | |
4771 | } | |
718e3744 | 4772 | } |
718e3744 | 4773 | |
d62a17ae | 4774 | /* Make new BGP info. */ |
4775 | new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_STATIC, 0, bgp->peer_self, | |
4776 | attr_new, rn); | |
4777 | /* Nexthop reachability check. */ | |
4778 | if (bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
4779 | && (safi == SAFI_UNICAST || safi == SAFI_LABELED_UNICAST)) { | |
960035b2 | 4780 | if (bgp_find_or_add_nexthop(bgp, bgp, afi, new, NULL, 0)) |
18ee8310 | 4781 | bgp_path_info_set_flag(rn, new, BGP_PATH_VALID); |
d62a17ae | 4782 | else { |
4783 | if (BGP_DEBUG(nht, NHT)) { | |
4784 | char buf1[INET6_ADDRSTRLEN]; | |
4785 | inet_ntop(p->family, &p->u.prefix, buf1, | |
4786 | INET6_ADDRSTRLEN); | |
4787 | zlog_debug( | |
4788 | "%s(%s): Route not in table, not advertising", | |
4789 | __FUNCTION__, buf1); | |
4790 | } | |
18ee8310 | 4791 | bgp_path_info_unset_flag(rn, new, BGP_PATH_VALID); |
d62a17ae | 4792 | } |
4793 | } else { | |
4794 | /* Delete the NHT structure if any, if we're toggling between | |
4795 | * enabling/disabling import check. We deregister the route | |
4796 | * from NHT to avoid overloading NHT and the process interaction | |
4797 | */ | |
4798 | bgp_unlink_nexthop(new); | |
4799 | ||
18ee8310 | 4800 | bgp_path_info_set_flag(rn, new, BGP_PATH_VALID); |
fc9a856f | 4801 | } |
078430f6 | 4802 | |
d62a17ae | 4803 | /* Aggregate address increment. */ |
4804 | bgp_aggregate_increment(bgp, p, new, afi, safi); | |
718e3744 | 4805 | |
d62a17ae | 4806 | /* Register new BGP information. */ |
18ee8310 | 4807 | bgp_path_info_add(rn, new); |
718e3744 | 4808 | |
d62a17ae | 4809 | /* route_node_get lock */ |
4810 | bgp_unlock_node(rn); | |
4811 | ||
4812 | /* Process change. */ | |
4813 | bgp_process(bgp, rn, afi, safi); | |
4814 | ||
ddb5b488 PZ |
4815 | if (SAFI_UNICAST == safi |
4816 | && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF | |
4817 | || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
4818 | vpn_leak_from_vrf_update(bgp_get_default(), bgp, new); | |
4819 | } | |
4820 | ||
d62a17ae | 4821 | /* Unintern original. */ |
4822 | aspath_unintern(&attr.aspath); | |
718e3744 | 4823 | } |
4824 | ||
d62a17ae | 4825 | void bgp_static_withdraw(struct bgp *bgp, struct prefix *p, afi_t afi, |
4826 | safi_t safi) | |
718e3744 | 4827 | { |
d62a17ae | 4828 | struct bgp_node *rn; |
40381db7 | 4829 | struct bgp_path_info *pi; |
718e3744 | 4830 | |
d62a17ae | 4831 | rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, NULL); |
718e3744 | 4832 | |
d62a17ae | 4833 | /* Check selected route and self inserted route. */ |
6f94b685 | 4834 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 DS |
4835 | if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP |
4836 | && pi->sub_type == BGP_ROUTE_STATIC) | |
d62a17ae | 4837 | break; |
4838 | ||
4839 | /* Withdraw static BGP route from routing table. */ | |
40381db7 | 4840 | if (pi) { |
ddb5b488 PZ |
4841 | if (SAFI_UNICAST == safi |
4842 | && (bgp->inst_type == BGP_INSTANCE_TYPE_VRF | |
4843 | || bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
40381db7 | 4844 | vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp, pi); |
ddb5b488 | 4845 | } |
40381db7 DS |
4846 | bgp_aggregate_decrement(bgp, p, pi, afi, safi); |
4847 | bgp_unlink_nexthop(pi); | |
4848 | bgp_path_info_delete(rn, pi); | |
d62a17ae | 4849 | bgp_process(bgp, rn, afi, safi); |
4850 | } | |
718e3744 | 4851 | |
d62a17ae | 4852 | /* Unlock bgp_node_lookup. */ |
4853 | bgp_unlock_node(rn); | |
718e3744 | 4854 | } |
4855 | ||
137446f9 LB |
4856 | /* |
4857 | * Used for SAFI_MPLS_VPN and SAFI_ENCAP | |
4858 | */ | |
d62a17ae | 4859 | static void bgp_static_withdraw_safi(struct bgp *bgp, struct prefix *p, |
4860 | afi_t afi, safi_t safi, | |
4861 | struct prefix_rd *prd) | |
718e3744 | 4862 | { |
d62a17ae | 4863 | struct bgp_node *rn; |
40381db7 | 4864 | struct bgp_path_info *pi; |
718e3744 | 4865 | |
d62a17ae | 4866 | rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, prd); |
718e3744 | 4867 | |
d62a17ae | 4868 | /* Check selected route and self inserted route. */ |
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; |
718e3744 | 4873 | |
d62a17ae | 4874 | /* Withdraw static BGP route from routing table. */ |
40381db7 | 4875 | if (pi) { |
65efcfce | 4876 | #if ENABLE_BGP_VNC |
d62a17ae | 4877 | rfapiProcessWithdraw( |
40381db7 | 4878 | pi->peer, NULL, p, prd, pi->attr, afi, safi, pi->type, |
d62a17ae | 4879 | 1); /* Kill, since it is an administrative change */ |
65efcfce | 4880 | #endif |
ddb5b488 PZ |
4881 | if (SAFI_MPLS_VPN == safi |
4882 | && bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
40381db7 | 4883 | vpn_leak_to_vrf_withdraw(bgp, pi); |
ddb5b488 | 4884 | } |
40381db7 DS |
4885 | bgp_aggregate_decrement(bgp, p, pi, afi, safi); |
4886 | bgp_path_info_delete(rn, pi); | |
d62a17ae | 4887 | bgp_process(bgp, rn, afi, safi); |
4888 | } | |
718e3744 | 4889 | |
d62a17ae | 4890 | /* Unlock bgp_node_lookup. */ |
4891 | bgp_unlock_node(rn); | |
718e3744 | 4892 | } |
4893 | ||
d62a17ae | 4894 | static void bgp_static_update_safi(struct bgp *bgp, struct prefix *p, |
4895 | struct bgp_static *bgp_static, afi_t afi, | |
4896 | safi_t safi) | |
137446f9 | 4897 | { |
d62a17ae | 4898 | struct bgp_node *rn; |
4b7e6066 | 4899 | struct bgp_path_info *new; |
d62a17ae | 4900 | struct attr *attr_new; |
4901 | struct attr attr = {0}; | |
40381db7 | 4902 | struct bgp_path_info *pi; |
65efcfce | 4903 | #if ENABLE_BGP_VNC |
d62a17ae | 4904 | mpls_label_t label = 0; |
65efcfce | 4905 | #endif |
d7c0a89a | 4906 | uint32_t num_labels = 0; |
d62a17ae | 4907 | union gw_addr add; |
137446f9 | 4908 | |
d62a17ae | 4909 | assert(bgp_static); |
137446f9 | 4910 | |
b57ba6d2 MK |
4911 | if (bgp_static->label != MPLS_INVALID_LABEL) |
4912 | num_labels = 1; | |
d62a17ae | 4913 | rn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, |
4914 | &bgp_static->prd); | |
137446f9 | 4915 | |
d62a17ae | 4916 | bgp_attr_default_set(&attr, BGP_ORIGIN_IGP); |
137446f9 | 4917 | |
d62a17ae | 4918 | attr.nexthop = bgp_static->igpnexthop; |
4919 | attr.med = bgp_static->igpmetric; | |
4920 | attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC); | |
137446f9 | 4921 | |
d62a17ae | 4922 | if ((safi == SAFI_EVPN) || (safi == SAFI_MPLS_VPN) |
4923 | || (safi == SAFI_ENCAP)) { | |
4924 | if (afi == AFI_IP) { | |
4925 | attr.mp_nexthop_global_in = bgp_static->igpnexthop; | |
4926 | attr.mp_nexthop_len = IPV4_MAX_BYTELEN; | |
4927 | } | |
4928 | } | |
4929 | if (afi == AFI_L2VPN) { | |
4930 | if (bgp_static->gatewayIp.family == AF_INET) | |
4931 | add.ipv4.s_addr = | |
4932 | bgp_static->gatewayIp.u.prefix4.s_addr; | |
4933 | else if (bgp_static->gatewayIp.family == AF_INET6) | |
4934 | memcpy(&(add.ipv6), &(bgp_static->gatewayIp.u.prefix6), | |
4935 | sizeof(struct in6_addr)); | |
4936 | overlay_index_update(&attr, bgp_static->eth_s_id, &add); | |
4937 | if (bgp_static->encap_tunneltype == BGP_ENCAP_TYPE_VXLAN) { | |
4938 | struct bgp_encap_type_vxlan bet; | |
4939 | memset(&bet, 0, sizeof(struct bgp_encap_type_vxlan)); | |
3714a385 | 4940 | bet.vnid = p->u.prefix_evpn.prefix_addr.eth_tag; |
d62a17ae | 4941 | bgp_encap_type_vxlan_to_tlv(&bet, &attr); |
4942 | } | |
4943 | if (bgp_static->router_mac) { | |
4944 | bgp_add_routermac_ecom(&attr, bgp_static->router_mac); | |
4945 | } | |
4946 | } | |
4947 | /* Apply route-map. */ | |
4948 | if (bgp_static->rmap.name) { | |
4949 | struct attr attr_tmp = attr; | |
40381db7 | 4950 | struct bgp_path_info rmap_path; |
b68885f9 | 4951 | route_map_result_t ret; |
137446f9 | 4952 | |
40381db7 DS |
4953 | rmap_path.peer = bgp->peer_self; |
4954 | rmap_path.attr = &attr_tmp; | |
137446f9 | 4955 | |
d62a17ae | 4956 | SET_FLAG(bgp->peer_self->rmap_type, PEER_RMAP_TYPE_NETWORK); |
137446f9 | 4957 | |
40381db7 DS |
4958 | ret = route_map_apply(bgp_static->rmap.map, p, RMAP_BGP, |
4959 | &rmap_path); | |
137446f9 | 4960 | |
d62a17ae | 4961 | bgp->peer_self->rmap_type = 0; |
137446f9 | 4962 | |
d62a17ae | 4963 | if (ret == RMAP_DENYMATCH) { |
4964 | /* Free uninterned attribute. */ | |
4965 | bgp_attr_flush(&attr_tmp); | |
137446f9 | 4966 | |
d62a17ae | 4967 | /* Unintern original. */ |
4968 | aspath_unintern(&attr.aspath); | |
4969 | bgp_static_withdraw_safi(bgp, p, afi, safi, | |
4970 | &bgp_static->prd); | |
4971 | return; | |
4972 | } | |
137446f9 | 4973 | |
d62a17ae | 4974 | attr_new = bgp_attr_intern(&attr_tmp); |
4975 | } else { | |
4976 | attr_new = bgp_attr_intern(&attr); | |
4977 | } | |
137446f9 | 4978 | |
6f94b685 | 4979 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 DS |
4980 | if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP |
4981 | && pi->sub_type == BGP_ROUTE_STATIC) | |
d62a17ae | 4982 | break; |
4983 | ||
40381db7 | 4984 | if (pi) { |
d62a17ae | 4985 | memset(&add, 0, sizeof(union gw_addr)); |
40381db7 DS |
4986 | if (attrhash_cmp(pi->attr, attr_new) |
4987 | && overlay_index_equal(afi, pi, bgp_static->eth_s_id, &add) | |
4988 | && !CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) { | |
d62a17ae | 4989 | bgp_unlock_node(rn); |
4990 | bgp_attr_unintern(&attr_new); | |
4991 | aspath_unintern(&attr.aspath); | |
4992 | return; | |
4993 | } else { | |
4994 | /* The attribute is changed. */ | |
40381db7 | 4995 | bgp_path_info_set_flag(rn, pi, BGP_PATH_ATTR_CHANGED); |
d62a17ae | 4996 | |
4997 | /* Rewrite BGP route information. */ | |
40381db7 DS |
4998 | if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) |
4999 | bgp_path_info_restore(rn, pi); | |
d62a17ae | 5000 | else |
40381db7 DS |
5001 | bgp_aggregate_decrement(bgp, p, pi, afi, safi); |
5002 | bgp_attr_unintern(&pi->attr); | |
5003 | pi->attr = attr_new; | |
5004 | pi->uptime = bgp_clock(); | |
65efcfce | 5005 | #if ENABLE_BGP_VNC |
40381db7 DS |
5006 | if (pi->extra) |
5007 | label = decode_label(&pi->extra->label[0]); | |
65efcfce | 5008 | #endif |
137446f9 | 5009 | |
d62a17ae | 5010 | /* Process change. */ |
40381db7 | 5011 | bgp_aggregate_increment(bgp, p, pi, afi, safi); |
d62a17ae | 5012 | bgp_process(bgp, rn, afi, safi); |
ddb5b488 PZ |
5013 | |
5014 | if (SAFI_MPLS_VPN == safi | |
5015 | && bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
40381db7 | 5016 | vpn_leak_to_vrf_update(bgp, pi); |
ddb5b488 | 5017 | } |
65efcfce | 5018 | #if ENABLE_BGP_VNC |
40381db7 DS |
5019 | rfapiProcessUpdate(pi->peer, NULL, p, &bgp_static->prd, |
5020 | pi->attr, afi, safi, pi->type, | |
5021 | pi->sub_type, &label); | |
65efcfce | 5022 | #endif |
d62a17ae | 5023 | bgp_unlock_node(rn); |
5024 | aspath_unintern(&attr.aspath); | |
5025 | return; | |
5026 | } | |
5027 | } | |
137446f9 LB |
5028 | |
5029 | ||
d62a17ae | 5030 | /* Make new BGP info. */ |
5031 | new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_STATIC, 0, bgp->peer_self, | |
5032 | attr_new, rn); | |
1defdda8 | 5033 | SET_FLAG(new->flags, BGP_PATH_VALID); |
18ee8310 | 5034 | new->extra = bgp_path_info_extra_new(); |
b57ba6d2 MK |
5035 | if (num_labels) { |
5036 | new->extra->label[0] = bgp_static->label; | |
5037 | new->extra->num_labels = num_labels; | |
5038 | } | |
65efcfce | 5039 | #if ENABLE_BGP_VNC |
d62a17ae | 5040 | label = decode_label(&bgp_static->label); |
65efcfce | 5041 | #endif |
137446f9 | 5042 | |
d62a17ae | 5043 | /* Aggregate address increment. */ |
5044 | bgp_aggregate_increment(bgp, p, new, afi, safi); | |
137446f9 | 5045 | |
d62a17ae | 5046 | /* Register new BGP information. */ |
18ee8310 | 5047 | bgp_path_info_add(rn, new); |
d62a17ae | 5048 | /* route_node_get lock */ |
5049 | bgp_unlock_node(rn); | |
137446f9 | 5050 | |
d62a17ae | 5051 | /* Process change. */ |
5052 | bgp_process(bgp, rn, afi, safi); | |
137446f9 | 5053 | |
ddb5b488 PZ |
5054 | if (SAFI_MPLS_VPN == safi |
5055 | && bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
5056 | vpn_leak_to_vrf_update(bgp, new); | |
5057 | } | |
65efcfce | 5058 | #if ENABLE_BGP_VNC |
d62a17ae | 5059 | rfapiProcessUpdate(new->peer, NULL, p, &bgp_static->prd, new->attr, afi, |
5060 | safi, new->type, new->sub_type, &label); | |
65efcfce LB |
5061 | #endif |
5062 | ||
d62a17ae | 5063 | /* Unintern original. */ |
5064 | aspath_unintern(&attr.aspath); | |
137446f9 LB |
5065 | } |
5066 | ||
718e3744 | 5067 | /* Configure static BGP network. When user don't run zebra, static |
5068 | route should be installed as valid. */ | |
e2a86ad9 DS |
5069 | static int bgp_static_set(struct vty *vty, const char *negate, |
5070 | const char *ip_str, afi_t afi, safi_t safi, | |
d7c0a89a | 5071 | const char *rmap, int backdoor, uint32_t label_index) |
d62a17ae | 5072 | { |
5073 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
5074 | int ret; | |
5075 | struct prefix p; | |
5076 | struct bgp_static *bgp_static; | |
5077 | struct bgp_node *rn; | |
d7c0a89a | 5078 | uint8_t need_update = 0; |
d62a17ae | 5079 | |
5080 | /* Convert IP prefix string to struct prefix. */ | |
5081 | ret = str2prefix(ip_str, &p); | |
5082 | if (!ret) { | |
5083 | vty_out(vty, "%% Malformed prefix\n"); | |
5084 | return CMD_WARNING_CONFIG_FAILED; | |
5085 | } | |
5086 | if (afi == AFI_IP6 && IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) { | |
5087 | vty_out(vty, "%% Malformed prefix (link-local address)\n"); | |
5088 | return CMD_WARNING_CONFIG_FAILED; | |
5089 | } | |
718e3744 | 5090 | |
d62a17ae | 5091 | apply_mask(&p); |
718e3744 | 5092 | |
e2a86ad9 | 5093 | if (negate) { |
718e3744 | 5094 | |
e2a86ad9 DS |
5095 | /* Set BGP static route configuration. */ |
5096 | rn = bgp_node_lookup(bgp->route[afi][safi], &p); | |
d62a17ae | 5097 | |
e2a86ad9 | 5098 | if (!rn) { |
a4d82a8a | 5099 | vty_out(vty, "%% Can't find static route specified\n"); |
d62a17ae | 5100 | return CMD_WARNING_CONFIG_FAILED; |
5101 | } | |
5102 | ||
5a8ba9fc | 5103 | bgp_static = bgp_node_get_bgp_static_info(rn); |
d62a17ae | 5104 | |
e2a86ad9 DS |
5105 | if ((label_index != BGP_INVALID_LABEL_INDEX) |
5106 | && (label_index != bgp_static->label_index)) { | |
5107 | vty_out(vty, | |
5108 | "%% label-index doesn't match static route\n"); | |
5109 | return CMD_WARNING_CONFIG_FAILED; | |
d62a17ae | 5110 | } |
d62a17ae | 5111 | |
e2a86ad9 DS |
5112 | if ((rmap && bgp_static->rmap.name) |
5113 | && strcmp(rmap, bgp_static->rmap.name)) { | |
5114 | vty_out(vty, | |
5115 | "%% route-map name doesn't match static route\n"); | |
5116 | return CMD_WARNING_CONFIG_FAILED; | |
d62a17ae | 5117 | } |
718e3744 | 5118 | |
e2a86ad9 DS |
5119 | /* Update BGP RIB. */ |
5120 | if (!bgp_static->backdoor) | |
5121 | bgp_static_withdraw(bgp, &p, afi, safi); | |
718e3744 | 5122 | |
e2a86ad9 DS |
5123 | /* Clear configuration. */ |
5124 | bgp_static_free(bgp_static); | |
5a8ba9fc | 5125 | bgp_node_set_bgp_static_info(rn, NULL); |
e2a86ad9 DS |
5126 | bgp_unlock_node(rn); |
5127 | bgp_unlock_node(rn); | |
5128 | } else { | |
718e3744 | 5129 | |
e2a86ad9 DS |
5130 | /* Set BGP static route configuration. */ |
5131 | rn = bgp_node_get(bgp->route[afi][safi], &p); | |
718e3744 | 5132 | |
5a8ba9fc | 5133 | bgp_static = bgp_node_get_bgp_static_info(rn); |
a78beeb5 | 5134 | if (bgp_static) { |
e2a86ad9 | 5135 | /* Configuration change. */ |
e2a86ad9 DS |
5136 | /* Label index cannot be changed. */ |
5137 | if (bgp_static->label_index != label_index) { | |
5138 | vty_out(vty, "%% cannot change label-index\n"); | |
5139 | return CMD_WARNING_CONFIG_FAILED; | |
5140 | } | |
d62a17ae | 5141 | |
e2a86ad9 | 5142 | /* Check previous routes are installed into BGP. */ |
a4d82a8a PZ |
5143 | if (bgp_static->valid |
5144 | && bgp_static->backdoor != backdoor) | |
e2a86ad9 | 5145 | need_update = 1; |
718e3744 | 5146 | |
e2a86ad9 | 5147 | bgp_static->backdoor = backdoor; |
718e3744 | 5148 | |
e2a86ad9 | 5149 | if (rmap) { |
0a22ddfb QY |
5150 | XFREE(MTYPE_ROUTE_MAP_NAME, |
5151 | bgp_static->rmap.name); | |
b4897fa5 | 5152 | route_map_counter_decrement( |
5153 | bgp_static->rmap.map); | |
e2a86ad9 DS |
5154 | bgp_static->rmap.name = |
5155 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
5156 | bgp_static->rmap.map = | |
5157 | route_map_lookup_by_name(rmap); | |
b4897fa5 | 5158 | route_map_counter_increment( |
5159 | bgp_static->rmap.map); | |
e2a86ad9 | 5160 | } else { |
0a22ddfb QY |
5161 | XFREE(MTYPE_ROUTE_MAP_NAME, |
5162 | bgp_static->rmap.name); | |
b4897fa5 | 5163 | route_map_counter_decrement( |
5164 | bgp_static->rmap.map); | |
e2a86ad9 DS |
5165 | bgp_static->rmap.name = NULL; |
5166 | bgp_static->rmap.map = NULL; | |
5167 | bgp_static->valid = 0; | |
5168 | } | |
5169 | bgp_unlock_node(rn); | |
5170 | } else { | |
5171 | /* New configuration. */ | |
5172 | bgp_static = bgp_static_new(); | |
5173 | bgp_static->backdoor = backdoor; | |
5174 | bgp_static->valid = 0; | |
5175 | bgp_static->igpmetric = 0; | |
5176 | bgp_static->igpnexthop.s_addr = 0; | |
5177 | bgp_static->label_index = label_index; | |
718e3744 | 5178 | |
e2a86ad9 | 5179 | if (rmap) { |
0a22ddfb QY |
5180 | XFREE(MTYPE_ROUTE_MAP_NAME, |
5181 | bgp_static->rmap.name); | |
b4897fa5 | 5182 | route_map_counter_decrement( |
5183 | bgp_static->rmap.map); | |
e2a86ad9 DS |
5184 | bgp_static->rmap.name = |
5185 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
5186 | bgp_static->rmap.map = | |
5187 | route_map_lookup_by_name(rmap); | |
b4897fa5 | 5188 | route_map_counter_increment( |
5189 | bgp_static->rmap.map); | |
e2a86ad9 | 5190 | } |
5a8ba9fc | 5191 | bgp_node_set_bgp_static_info(rn, bgp_static); |
e2a86ad9 | 5192 | } |
d62a17ae | 5193 | |
e2a86ad9 DS |
5194 | bgp_static->valid = 1; |
5195 | if (need_update) | |
5196 | bgp_static_withdraw(bgp, &p, afi, safi); | |
d62a17ae | 5197 | |
e2a86ad9 DS |
5198 | if (!bgp_static->backdoor) |
5199 | bgp_static_update(bgp, &p, bgp_static, afi, safi); | |
5200 | } | |
d62a17ae | 5201 | |
5202 | return CMD_SUCCESS; | |
5203 | } | |
5204 | ||
5205 | void bgp_static_add(struct bgp *bgp) | |
5206 | { | |
5207 | afi_t afi; | |
5208 | safi_t safi; | |
5209 | struct bgp_node *rn; | |
5210 | struct bgp_node *rm; | |
5211 | struct bgp_table *table; | |
5212 | struct bgp_static *bgp_static; | |
5213 | ||
05c7a1cc QY |
5214 | FOREACH_AFI_SAFI (afi, safi) |
5215 | for (rn = bgp_table_top(bgp->route[afi][safi]); rn; | |
5216 | rn = bgp_route_next(rn)) { | |
67009e22 | 5217 | if (!bgp_node_has_bgp_path_info_data(rn)) |
05c7a1cc | 5218 | continue; |
ea47320b | 5219 | |
05c7a1cc QY |
5220 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP) |
5221 | || (safi == SAFI_EVPN)) { | |
67009e22 | 5222 | table = bgp_node_get_bgp_table_info(rn); |
05c7a1cc QY |
5223 | |
5224 | for (rm = bgp_table_top(table); rm; | |
5225 | rm = bgp_route_next(rm)) { | |
a78beeb5 | 5226 | bgp_static = |
5a8ba9fc DS |
5227 | bgp_node_get_bgp_static_info( |
5228 | rm); | |
05c7a1cc QY |
5229 | bgp_static_update_safi(bgp, &rm->p, |
5230 | bgp_static, afi, | |
5231 | safi); | |
d62a17ae | 5232 | } |
05c7a1cc | 5233 | } else { |
5a8ba9fc DS |
5234 | bgp_static_update( |
5235 | bgp, &rn->p, | |
5236 | bgp_node_get_bgp_static_info(rn), afi, | |
5237 | safi); | |
ea47320b | 5238 | } |
05c7a1cc | 5239 | } |
6aeb9e78 DS |
5240 | } |
5241 | ||
718e3744 | 5242 | /* Called from bgp_delete(). Delete all static routes from the BGP |
5243 | instance. */ | |
d62a17ae | 5244 | void bgp_static_delete(struct bgp *bgp) |
5245 | { | |
5246 | afi_t afi; | |
5247 | safi_t safi; | |
5248 | struct bgp_node *rn; | |
5249 | struct bgp_node *rm; | |
5250 | struct bgp_table *table; | |
5251 | struct bgp_static *bgp_static; | |
5252 | ||
05c7a1cc QY |
5253 | FOREACH_AFI_SAFI (afi, safi) |
5254 | for (rn = bgp_table_top(bgp->route[afi][safi]); rn; | |
5255 | rn = bgp_route_next(rn)) { | |
67009e22 | 5256 | if (!bgp_node_has_bgp_path_info_data(rn)) |
05c7a1cc | 5257 | continue; |
ea47320b | 5258 | |
05c7a1cc QY |
5259 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP) |
5260 | || (safi == SAFI_EVPN)) { | |
67009e22 | 5261 | table = bgp_node_get_bgp_table_info(rn); |
05c7a1cc QY |
5262 | |
5263 | for (rm = bgp_table_top(table); rm; | |
5264 | rm = bgp_route_next(rm)) { | |
a78beeb5 | 5265 | bgp_static = |
5a8ba9fc DS |
5266 | bgp_node_get_bgp_static_info( |
5267 | rm); | |
c7d14ba6 PG |
5268 | if (!bgp_static) |
5269 | continue; | |
5270 | ||
05c7a1cc QY |
5271 | bgp_static_withdraw_safi( |
5272 | bgp, &rm->p, AFI_IP, safi, | |
5273 | (struct prefix_rd *)&rn->p); | |
ea47320b | 5274 | bgp_static_free(bgp_static); |
5a8ba9fc | 5275 | bgp_node_set_bgp_static_info(rn, NULL); |
ea47320b | 5276 | bgp_unlock_node(rn); |
d62a17ae | 5277 | } |
05c7a1cc | 5278 | } else { |
5a8ba9fc | 5279 | bgp_static = bgp_node_get_bgp_static_info(rn); |
05c7a1cc QY |
5280 | bgp_static_withdraw(bgp, &rn->p, afi, safi); |
5281 | bgp_static_free(bgp_static); | |
5a8ba9fc | 5282 | bgp_node_set_bgp_static_info(rn, NULL); |
05c7a1cc | 5283 | bgp_unlock_node(rn); |
ea47320b | 5284 | } |
05c7a1cc | 5285 | } |
d62a17ae | 5286 | } |
5287 | ||
5288 | void bgp_static_redo_import_check(struct bgp *bgp) | |
5289 | { | |
5290 | afi_t afi; | |
5291 | safi_t safi; | |
5292 | struct bgp_node *rn; | |
5293 | struct bgp_node *rm; | |
5294 | struct bgp_table *table; | |
5295 | struct bgp_static *bgp_static; | |
5296 | ||
5297 | /* Use this flag to force reprocessing of the route */ | |
5298 | bgp_flag_set(bgp, BGP_FLAG_FORCE_STATIC_PROCESS); | |
05c7a1cc QY |
5299 | FOREACH_AFI_SAFI (afi, safi) { |
5300 | for (rn = bgp_table_top(bgp->route[afi][safi]); rn; | |
5301 | rn = bgp_route_next(rn)) { | |
67009e22 | 5302 | if (!bgp_node_has_bgp_path_info_data(rn)) |
05c7a1cc | 5303 | continue; |
ea47320b | 5304 | |
05c7a1cc QY |
5305 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP) |
5306 | || (safi == SAFI_EVPN)) { | |
67009e22 | 5307 | table = bgp_node_get_bgp_table_info(rn); |
05c7a1cc QY |
5308 | |
5309 | for (rm = bgp_table_top(table); rm; | |
5310 | rm = bgp_route_next(rm)) { | |
a78beeb5 | 5311 | bgp_static = |
5a8ba9fc DS |
5312 | bgp_node_get_bgp_static_info( |
5313 | rm); | |
05c7a1cc QY |
5314 | bgp_static_update_safi(bgp, &rm->p, |
5315 | bgp_static, afi, | |
5316 | safi); | |
d62a17ae | 5317 | } |
05c7a1cc | 5318 | } else { |
5a8ba9fc | 5319 | bgp_static = bgp_node_get_bgp_static_info(rn); |
05c7a1cc QY |
5320 | bgp_static_update(bgp, &rn->p, bgp_static, afi, |
5321 | safi); | |
ea47320b | 5322 | } |
05c7a1cc QY |
5323 | } |
5324 | } | |
d62a17ae | 5325 | bgp_flag_unset(bgp, BGP_FLAG_FORCE_STATIC_PROCESS); |
5326 | } | |
5327 | ||
5328 | static void bgp_purge_af_static_redist_routes(struct bgp *bgp, afi_t afi, | |
5329 | safi_t safi) | |
5330 | { | |
5331 | struct bgp_table *table; | |
5332 | struct bgp_node *rn; | |
40381db7 | 5333 | struct bgp_path_info *pi; |
d62a17ae | 5334 | |
dfb6fd1d NT |
5335 | /* Do not install the aggregate route if BGP is in the |
5336 | * process of termination. | |
5337 | */ | |
5338 | if (bgp_flag_check(bgp, BGP_FLAG_DELETE_IN_PROGRESS) || | |
5339 | (bgp->peer_self == NULL)) | |
5340 | return; | |
5341 | ||
d62a17ae | 5342 | table = bgp->rib[afi][safi]; |
5343 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { | |
6f94b685 | 5344 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 DS |
5345 | if (pi->peer == bgp->peer_self |
5346 | && ((pi->type == ZEBRA_ROUTE_BGP | |
5347 | && pi->sub_type == BGP_ROUTE_STATIC) | |
5348 | || (pi->type != ZEBRA_ROUTE_BGP | |
5349 | && pi->sub_type | |
d62a17ae | 5350 | == BGP_ROUTE_REDISTRIBUTE))) { |
40381db7 | 5351 | bgp_aggregate_decrement(bgp, &rn->p, pi, afi, |
d62a17ae | 5352 | safi); |
40381db7 DS |
5353 | bgp_unlink_nexthop(pi); |
5354 | bgp_path_info_delete(rn, pi); | |
d62a17ae | 5355 | bgp_process(bgp, rn, afi, safi); |
5356 | } | |
5357 | } | |
5358 | } | |
ad4cbda1 | 5359 | } |
5360 | ||
5361 | /* | |
5362 | * Purge all networks and redistributed routes from routing table. | |
5363 | * Invoked upon the instance going down. | |
5364 | */ | |
d62a17ae | 5365 | void bgp_purge_static_redist_routes(struct bgp *bgp) |
ad4cbda1 | 5366 | { |
d62a17ae | 5367 | afi_t afi; |
5368 | safi_t safi; | |
ad4cbda1 | 5369 | |
05c7a1cc QY |
5370 | FOREACH_AFI_SAFI (afi, safi) |
5371 | bgp_purge_af_static_redist_routes(bgp, afi, safi); | |
ad4cbda1 | 5372 | } |
5373 | ||
137446f9 LB |
5374 | /* |
5375 | * gpz 110624 | |
5376 | * Currently this is used to set static routes for VPN and ENCAP. | |
5377 | * I think it can probably be factored with bgp_static_set. | |
5378 | */ | |
d62a17ae | 5379 | int bgp_static_set_safi(afi_t afi, safi_t safi, struct vty *vty, |
5380 | const char *ip_str, const char *rd_str, | |
5381 | const char *label_str, const char *rmap_str, | |
5382 | int evpn_type, const char *esi, const char *gwip, | |
5383 | const char *ethtag, const char *routermac) | |
5384 | { | |
5385 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
5386 | int ret; | |
5387 | struct prefix p; | |
5388 | struct prefix_rd prd; | |
5389 | struct bgp_node *prn; | |
5390 | struct bgp_node *rn; | |
5391 | struct bgp_table *table; | |
5392 | struct bgp_static *bgp_static; | |
5393 | mpls_label_t label = MPLS_INVALID_LABEL; | |
5394 | struct prefix gw_ip; | |
5395 | ||
5396 | /* validate ip prefix */ | |
5397 | ret = str2prefix(ip_str, &p); | |
5398 | if (!ret) { | |
5399 | vty_out(vty, "%% Malformed prefix\n"); | |
5400 | return CMD_WARNING_CONFIG_FAILED; | |
5401 | } | |
5402 | apply_mask(&p); | |
5403 | if ((afi == AFI_L2VPN) | |
5404 | && (bgp_build_evpn_prefix(evpn_type, | |
5405 | ethtag != NULL ? atol(ethtag) : 0, &p))) { | |
5406 | vty_out(vty, "%% L2VPN prefix could not be forged\n"); | |
5407 | return CMD_WARNING_CONFIG_FAILED; | |
5408 | } | |
718e3744 | 5409 | |
d62a17ae | 5410 | ret = str2prefix_rd(rd_str, &prd); |
5411 | if (!ret) { | |
5412 | vty_out(vty, "%% Malformed rd\n"); | |
5413 | return CMD_WARNING_CONFIG_FAILED; | |
5414 | } | |
718e3744 | 5415 | |
d62a17ae | 5416 | if (label_str) { |
5417 | unsigned long label_val; | |
5418 | label_val = strtoul(label_str, NULL, 10); | |
5419 | encode_label(label_val, &label); | |
5420 | } | |
9bedbb1e | 5421 | |
d62a17ae | 5422 | if (safi == SAFI_EVPN) { |
5423 | if (esi && str2esi(esi, NULL) == 0) { | |
5424 | vty_out(vty, "%% Malformed ESI\n"); | |
5425 | return CMD_WARNING_CONFIG_FAILED; | |
5426 | } | |
5427 | if (routermac && prefix_str2mac(routermac, NULL) == 0) { | |
5428 | vty_out(vty, "%% Malformed Router MAC\n"); | |
5429 | return CMD_WARNING_CONFIG_FAILED; | |
5430 | } | |
5431 | if (gwip) { | |
5432 | memset(&gw_ip, 0, sizeof(struct prefix)); | |
5433 | ret = str2prefix(gwip, &gw_ip); | |
5434 | if (!ret) { | |
5435 | vty_out(vty, "%% Malformed GatewayIp\n"); | |
5436 | return CMD_WARNING_CONFIG_FAILED; | |
5437 | } | |
5438 | if ((gw_ip.family == AF_INET | |
3714a385 | 5439 | && is_evpn_prefix_ipaddr_v6( |
d62a17ae | 5440 | (struct prefix_evpn *)&p)) |
5441 | || (gw_ip.family == AF_INET6 | |
3714a385 | 5442 | && is_evpn_prefix_ipaddr_v4( |
d62a17ae | 5443 | (struct prefix_evpn *)&p))) { |
5444 | vty_out(vty, | |
5445 | "%% GatewayIp family differs with IP prefix\n"); | |
5446 | return CMD_WARNING_CONFIG_FAILED; | |
5447 | } | |
5448 | } | |
5449 | } | |
5450 | prn = bgp_node_get(bgp->route[afi][safi], (struct prefix *)&prd); | |
67009e22 DS |
5451 | if (!bgp_node_has_bgp_path_info_data(prn)) |
5452 | bgp_node_set_bgp_table_info(prn, | |
5453 | bgp_table_init(bgp, afi, safi)); | |
67009e22 | 5454 | table = bgp_node_get_bgp_table_info(prn); |
d62a17ae | 5455 | |
5456 | rn = bgp_node_get(table, &p); | |
5457 | ||
67009e22 | 5458 | if (bgp_node_has_bgp_path_info_data(rn)) { |
d62a17ae | 5459 | vty_out(vty, "%% Same network configuration exists\n"); |
5460 | bgp_unlock_node(rn); | |
5461 | } else { | |
5462 | /* New configuration. */ | |
5463 | bgp_static = bgp_static_new(); | |
5464 | bgp_static->backdoor = 0; | |
5465 | bgp_static->valid = 0; | |
5466 | bgp_static->igpmetric = 0; | |
5467 | bgp_static->igpnexthop.s_addr = 0; | |
5468 | bgp_static->label = label; | |
5469 | bgp_static->prd = prd; | |
5470 | ||
5471 | if (rmap_str) { | |
0a22ddfb | 5472 | XFREE(MTYPE_ROUTE_MAP_NAME, bgp_static->rmap.name); |
b4897fa5 | 5473 | route_map_counter_decrement(bgp_static->rmap.map); |
d62a17ae | 5474 | bgp_static->rmap.name = |
5475 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap_str); | |
5476 | bgp_static->rmap.map = | |
5477 | route_map_lookup_by_name(rmap_str); | |
b4897fa5 | 5478 | route_map_counter_increment(bgp_static->rmap.map); |
d62a17ae | 5479 | } |
718e3744 | 5480 | |
d62a17ae | 5481 | if (safi == SAFI_EVPN) { |
5482 | if (esi) { | |
5483 | bgp_static->eth_s_id = | |
5484 | XCALLOC(MTYPE_ATTR, | |
5485 | sizeof(struct eth_segment_id)); | |
5486 | str2esi(esi, bgp_static->eth_s_id); | |
5487 | } | |
5488 | if (routermac) { | |
5489 | bgp_static->router_mac = | |
28328ea9 | 5490 | XCALLOC(MTYPE_ATTR, ETH_ALEN + 1); |
56cb79b6 A |
5491 | (void)prefix_str2mac(routermac, |
5492 | bgp_static->router_mac); | |
d62a17ae | 5493 | } |
5494 | if (gwip) | |
5495 | prefix_copy(&bgp_static->gatewayIp, &gw_ip); | |
5496 | } | |
5a8ba9fc | 5497 | bgp_node_set_bgp_static_info(rn, bgp_static); |
718e3744 | 5498 | |
d62a17ae | 5499 | bgp_static->valid = 1; |
5500 | bgp_static_update_safi(bgp, &p, bgp_static, afi, safi); | |
5501 | } | |
718e3744 | 5502 | |
d62a17ae | 5503 | return CMD_SUCCESS; |
718e3744 | 5504 | } |
5505 | ||
5506 | /* Configure static BGP network. */ | |
d62a17ae | 5507 | int bgp_static_unset_safi(afi_t afi, safi_t safi, struct vty *vty, |
5508 | const char *ip_str, const char *rd_str, | |
5509 | const char *label_str, int evpn_type, const char *esi, | |
5510 | const char *gwip, const char *ethtag) | |
5511 | { | |
5512 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
5513 | int ret; | |
5514 | struct prefix p; | |
5515 | struct prefix_rd prd; | |
5516 | struct bgp_node *prn; | |
5517 | struct bgp_node *rn; | |
5518 | struct bgp_table *table; | |
5519 | struct bgp_static *bgp_static; | |
5520 | mpls_label_t label = MPLS_INVALID_LABEL; | |
5521 | ||
5522 | /* Convert IP prefix string to struct prefix. */ | |
5523 | ret = str2prefix(ip_str, &p); | |
5524 | if (!ret) { | |
5525 | vty_out(vty, "%% Malformed prefix\n"); | |
5526 | return CMD_WARNING_CONFIG_FAILED; | |
5527 | } | |
5528 | apply_mask(&p); | |
5529 | if ((afi == AFI_L2VPN) | |
5530 | && (bgp_build_evpn_prefix(evpn_type, | |
5531 | ethtag != NULL ? atol(ethtag) : 0, &p))) { | |
5532 | vty_out(vty, "%% L2VPN prefix could not be forged\n"); | |
5533 | return CMD_WARNING_CONFIG_FAILED; | |
5534 | } | |
5535 | ret = str2prefix_rd(rd_str, &prd); | |
5536 | if (!ret) { | |
5537 | vty_out(vty, "%% Malformed rd\n"); | |
5538 | return CMD_WARNING_CONFIG_FAILED; | |
5539 | } | |
718e3744 | 5540 | |
d62a17ae | 5541 | if (label_str) { |
5542 | unsigned long label_val; | |
5543 | label_val = strtoul(label_str, NULL, 10); | |
5544 | encode_label(label_val, &label); | |
5545 | } | |
718e3744 | 5546 | |
d62a17ae | 5547 | prn = bgp_node_get(bgp->route[afi][safi], (struct prefix *)&prd); |
67009e22 DS |
5548 | if (!bgp_node_has_bgp_path_info_data(prn)) |
5549 | bgp_node_set_bgp_table_info(prn, | |
5550 | bgp_table_init(bgp, afi, safi)); | |
d62a17ae | 5551 | else |
5552 | bgp_unlock_node(prn); | |
67009e22 | 5553 | table = bgp_node_get_bgp_table_info(prn); |
718e3744 | 5554 | |
d62a17ae | 5555 | rn = bgp_node_lookup(table, &p); |
6b0655a2 | 5556 | |
d62a17ae | 5557 | if (rn) { |
5558 | bgp_static_withdraw_safi(bgp, &p, afi, safi, &prd); | |
73ac8160 | 5559 | |
5a8ba9fc | 5560 | bgp_static = bgp_node_get_bgp_static_info(rn); |
d62a17ae | 5561 | bgp_static_free(bgp_static); |
5a8ba9fc | 5562 | bgp_node_set_bgp_static_info(rn, NULL); |
d62a17ae | 5563 | bgp_unlock_node(rn); |
5564 | bgp_unlock_node(rn); | |
5565 | } else | |
5566 | vty_out(vty, "%% Can't find the route\n"); | |
5567 | ||
5568 | return CMD_SUCCESS; | |
5569 | } | |
5570 | ||
5571 | static int bgp_table_map_set(struct vty *vty, afi_t afi, safi_t safi, | |
5572 | const char *rmap_name) | |
5573 | { | |
5574 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
5575 | struct bgp_rmap *rmap; | |
5576 | ||
5577 | rmap = &bgp->table_map[afi][safi]; | |
5578 | if (rmap_name) { | |
0a22ddfb | 5579 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); |
b4897fa5 | 5580 | route_map_counter_decrement(rmap->map); |
d62a17ae | 5581 | rmap->name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap_name); |
5582 | rmap->map = route_map_lookup_by_name(rmap_name); | |
b4897fa5 | 5583 | route_map_counter_increment(rmap->map); |
d62a17ae | 5584 | } else { |
0a22ddfb | 5585 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); |
b4897fa5 | 5586 | route_map_counter_decrement(rmap->map); |
d62a17ae | 5587 | rmap->name = NULL; |
5588 | rmap->map = NULL; | |
5589 | } | |
73ac8160 | 5590 | |
d62a17ae | 5591 | if (bgp_fibupd_safi(safi)) |
5592 | bgp_zebra_announce_table(bgp, afi, safi); | |
73ac8160 | 5593 | |
d62a17ae | 5594 | return CMD_SUCCESS; |
73ac8160 DS |
5595 | } |
5596 | ||
d62a17ae | 5597 | static int bgp_table_map_unset(struct vty *vty, afi_t afi, safi_t safi, |
5598 | const char *rmap_name) | |
73ac8160 | 5599 | { |
d62a17ae | 5600 | VTY_DECLVAR_CONTEXT(bgp, bgp); |
5601 | struct bgp_rmap *rmap; | |
73ac8160 | 5602 | |
d62a17ae | 5603 | rmap = &bgp->table_map[afi][safi]; |
0a22ddfb | 5604 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); |
b4897fa5 | 5605 | route_map_counter_decrement(rmap->map); |
d62a17ae | 5606 | rmap->name = NULL; |
5607 | rmap->map = NULL; | |
73ac8160 | 5608 | |
d62a17ae | 5609 | if (bgp_fibupd_safi(safi)) |
5610 | bgp_zebra_announce_table(bgp, afi, safi); | |
73ac8160 | 5611 | |
d62a17ae | 5612 | return CMD_SUCCESS; |
73ac8160 DS |
5613 | } |
5614 | ||
2b791107 | 5615 | void bgp_config_write_table_map(struct vty *vty, struct bgp *bgp, afi_t afi, |
60466a63 | 5616 | safi_t safi) |
73ac8160 | 5617 | { |
d62a17ae | 5618 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 5619 | vty_out(vty, " table-map %s\n", |
5620 | bgp->table_map[afi][safi].name); | |
5621 | } | |
73ac8160 DS |
5622 | } |
5623 | ||
73ac8160 DS |
5624 | DEFUN (bgp_table_map, |
5625 | bgp_table_map_cmd, | |
5626 | "table-map WORD", | |
5627 | "BGP table to RIB route download filter\n" | |
5628 | "Name of the route map\n") | |
5629 | { | |
d62a17ae | 5630 | int idx_word = 1; |
5631 | return bgp_table_map_set(vty, bgp_node_afi(vty), bgp_node_safi(vty), | |
5632 | argv[idx_word]->arg); | |
73ac8160 DS |
5633 | } |
5634 | DEFUN (no_bgp_table_map, | |
5635 | no_bgp_table_map_cmd, | |
5636 | "no table-map WORD", | |
3a2d747c | 5637 | NO_STR |
73ac8160 DS |
5638 | "BGP table to RIB route download filter\n" |
5639 | "Name of the route map\n") | |
5640 | { | |
d62a17ae | 5641 | int idx_word = 2; |
5642 | return bgp_table_map_unset(vty, bgp_node_afi(vty), bgp_node_safi(vty), | |
5643 | argv[idx_word]->arg); | |
73ac8160 DS |
5644 | } |
5645 | ||
e2a86ad9 DS |
5646 | DEFPY(bgp_network, |
5647 | bgp_network_cmd, | |
5648 | "[no] network \ | |
5649 | <A.B.C.D/M$prefix|A.B.C.D$address [mask A.B.C.D$netmask]> \ | |
5650 | [{route-map WORD$map_name|label-index (0-1048560)$label_index| \ | |
5651 | backdoor$backdoor}]", | |
5652 | NO_STR | |
5653 | "Specify a network to announce via BGP\n" | |
5654 | "IPv4 prefix\n" | |
5655 | "Network number\n" | |
5656 | "Network mask\n" | |
5657 | "Network mask\n" | |
5658 | "Route-map to modify the attributes\n" | |
5659 | "Name of the route map\n" | |
5660 | "Label index to associate with the prefix\n" | |
5661 | "Label index value\n" | |
5662 | "Specify a BGP backdoor route\n") | |
5663 | { | |
5664 | char addr_prefix_str[BUFSIZ]; | |
5665 | ||
5666 | if (address_str) { | |
5667 | int ret; | |
718e3744 | 5668 | |
e2a86ad9 DS |
5669 | ret = netmask_str2prefix_str(address_str, netmask_str, |
5670 | addr_prefix_str); | |
5671 | if (!ret) { | |
5672 | vty_out(vty, "%% Inconsistent address and mask\n"); | |
5673 | return CMD_WARNING_CONFIG_FAILED; | |
5674 | } | |
d62a17ae | 5675 | } |
718e3744 | 5676 | |
a4d82a8a PZ |
5677 | return bgp_static_set( |
5678 | vty, no, address_str ? addr_prefix_str : prefix_str, AFI_IP, | |
5679 | bgp_node_safi(vty), map_name, backdoor ? 1 : 0, | |
5680 | label_index ? (uint32_t)label_index : BGP_INVALID_LABEL_INDEX); | |
718e3744 | 5681 | } |
5682 | ||
e2a86ad9 DS |
5683 | DEFPY(ipv6_bgp_network, |
5684 | ipv6_bgp_network_cmd, | |
5685 | "[no] network X:X::X:X/M$prefix \ | |
5686 | [{route-map WORD$map_name|label-index (0-1048560)$label_index}]", | |
5687 | NO_STR | |
5688 | "Specify a network to announce via BGP\n" | |
5689 | "IPv6 prefix\n" | |
5690 | "Route-map to modify the attributes\n" | |
5691 | "Name of the route map\n" | |
5692 | "Label index to associate with the prefix\n" | |
5693 | "Label index value\n") | |
718e3744 | 5694 | { |
a4d82a8a PZ |
5695 | return bgp_static_set( |
5696 | vty, no, prefix_str, AFI_IP6, bgp_node_safi(vty), map_name, 0, | |
5697 | label_index ? (uint32_t)label_index : BGP_INVALID_LABEL_INDEX); | |
1b6d5c7e VV |
5698 | } |
5699 | ||
d62a17ae | 5700 | static struct bgp_aggregate *bgp_aggregate_new(void) |
718e3744 | 5701 | { |
d62a17ae | 5702 | return XCALLOC(MTYPE_BGP_AGGREGATE, sizeof(struct bgp_aggregate)); |
718e3744 | 5703 | } |
5704 | ||
d62a17ae | 5705 | static void bgp_aggregate_free(struct bgp_aggregate *aggregate) |
718e3744 | 5706 | { |
d62a17ae | 5707 | XFREE(MTYPE_BGP_AGGREGATE, aggregate); |
5708 | } | |
718e3744 | 5709 | |
40381db7 | 5710 | static int bgp_aggregate_info_same(struct bgp_path_info *pi, uint8_t origin, |
29f7d023 | 5711 | struct aspath *aspath, |
3da2cc32 | 5712 | struct community *comm, |
dd18c5a9 DS |
5713 | struct ecommunity *ecomm, |
5714 | struct lcommunity *lcomm) | |
eaaf8adb DS |
5715 | { |
5716 | static struct aspath *ae = NULL; | |
5717 | ||
5718 | if (!ae) | |
5719 | ae = aspath_empty(); | |
5720 | ||
40381db7 | 5721 | if (!pi) |
eaaf8adb DS |
5722 | return 0; |
5723 | ||
40381db7 | 5724 | if (origin != pi->attr->origin) |
eaaf8adb DS |
5725 | return 0; |
5726 | ||
40381db7 | 5727 | if (!aspath_cmp(pi->attr->aspath, (aspath) ? aspath : ae)) |
29f7d023 DS |
5728 | return 0; |
5729 | ||
40381db7 | 5730 | if (!community_cmp(pi->attr->community, comm)) |
eaaf8adb DS |
5731 | return 0; |
5732 | ||
3da2cc32 | 5733 | if (!ecommunity_cmp(pi->attr->ecommunity, ecomm)) |
eaaf8adb DS |
5734 | return 0; |
5735 | ||
dd18c5a9 DS |
5736 | if (!lcommunity_cmp(pi->attr->lcommunity, lcomm)) |
5737 | return 0; | |
5738 | ||
40381db7 | 5739 | if (!CHECK_FLAG(pi->flags, BGP_PATH_VALID)) |
7ce8a8e0 DS |
5740 | return 0; |
5741 | ||
eaaf8adb DS |
5742 | return 1; |
5743 | } | |
5744 | ||
c701010e DS |
5745 | static void bgp_aggregate_install(struct bgp *bgp, afi_t afi, safi_t safi, |
5746 | struct prefix *p, uint8_t origin, | |
5747 | struct aspath *aspath, | |
5748 | struct community *community, | |
3da2cc32 | 5749 | struct ecommunity *ecommunity, |
dd18c5a9 | 5750 | struct lcommunity *lcommunity, |
c701010e DS |
5751 | uint8_t atomic_aggregate, |
5752 | struct bgp_aggregate *aggregate) | |
5753 | { | |
5754 | struct bgp_node *rn; | |
5755 | struct bgp_table *table; | |
6f94b685 | 5756 | struct bgp_path_info *pi, *orig, *new; |
c701010e DS |
5757 | |
5758 | table = bgp->rib[afi][safi]; | |
5759 | ||
5760 | rn = bgp_node_get(table, p); | |
eaaf8adb | 5761 | |
6f94b685 | 5762 | for (orig = pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 DS |
5763 | if (pi->peer == bgp->peer_self && pi->type == ZEBRA_ROUTE_BGP |
5764 | && pi->sub_type == BGP_ROUTE_AGGREGATE) | |
eaaf8adb DS |
5765 | break; |
5766 | ||
c701010e | 5767 | if (aggregate->count > 0) { |
eaaf8adb DS |
5768 | /* |
5769 | * If the aggregate information has not changed | |
5770 | * no need to re-install it again. | |
5771 | */ | |
6f94b685 | 5772 | if (bgp_aggregate_info_same(orig, origin, aspath, community, |
dd18c5a9 | 5773 | ecommunity, lcommunity)) { |
eaaf8adb DS |
5774 | bgp_unlock_node(rn); |
5775 | ||
5776 | if (aspath) | |
5777 | aspath_free(aspath); | |
5778 | if (community) | |
3c1f53de | 5779 | community_free(&community); |
3da2cc32 DS |
5780 | if (ecommunity) |
5781 | ecommunity_free(&ecommunity); | |
dd18c5a9 DS |
5782 | if (lcommunity) |
5783 | lcommunity_free(&lcommunity); | |
eaaf8adb DS |
5784 | |
5785 | return; | |
5786 | } | |
5787 | ||
5788 | /* | |
5789 | * Mark the old as unusable | |
5790 | */ | |
40381db7 DS |
5791 | if (pi) |
5792 | bgp_path_info_delete(rn, pi); | |
eaaf8adb | 5793 | |
3da2cc32 DS |
5794 | new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_AGGREGATE, 0, |
5795 | bgp->peer_self, | |
5796 | bgp_attr_aggregate_intern(bgp, origin, aspath, | |
5797 | community, ecommunity, | |
dd18c5a9 | 5798 | lcommunity, |
3da2cc32 DS |
5799 | aggregate->as_set, |
5800 | atomic_aggregate), | |
5801 | rn); | |
1defdda8 | 5802 | SET_FLAG(new->flags, BGP_PATH_VALID); |
c701010e | 5803 | |
18ee8310 | 5804 | bgp_path_info_add(rn, new); |
c701010e DS |
5805 | bgp_process(bgp, rn, afi, safi); |
5806 | } else { | |
6f94b685 | 5807 | for (pi = orig; pi; pi = pi->next) |
40381db7 DS |
5808 | if (pi->peer == bgp->peer_self |
5809 | && pi->type == ZEBRA_ROUTE_BGP | |
5810 | && pi->sub_type == BGP_ROUTE_AGGREGATE) | |
c701010e DS |
5811 | break; |
5812 | ||
5813 | /* Withdraw static BGP route from routing table. */ | |
40381db7 DS |
5814 | if (pi) { |
5815 | bgp_path_info_delete(rn, pi); | |
c701010e DS |
5816 | bgp_process(bgp, rn, afi, safi); |
5817 | } | |
5818 | } | |
5819 | ||
5820 | bgp_unlock_node(rn); | |
5821 | } | |
5822 | ||
b5d58c32 | 5823 | /* Update an aggregate as routes are added/removed from the BGP table */ |
d62a17ae | 5824 | static void bgp_aggregate_route(struct bgp *bgp, struct prefix *p, |
fc968841 | 5825 | afi_t afi, safi_t safi, |
d62a17ae | 5826 | struct bgp_aggregate *aggregate) |
5827 | { | |
5828 | struct bgp_table *table; | |
5829 | struct bgp_node *top; | |
5830 | struct bgp_node *rn; | |
d7c0a89a | 5831 | uint8_t origin; |
d62a17ae | 5832 | struct aspath *aspath = NULL; |
d62a17ae | 5833 | struct community *community = NULL; |
3da2cc32 | 5834 | struct ecommunity *ecommunity = NULL; |
dd18c5a9 | 5835 | struct lcommunity *lcommunity = NULL; |
40381db7 | 5836 | struct bgp_path_info *pi; |
d62a17ae | 5837 | unsigned long match = 0; |
d7c0a89a | 5838 | uint8_t atomic_aggregate = 0; |
d62a17ae | 5839 | |
9f822fa2 S |
5840 | /* If the bgp instance is being deleted or self peer is deleted |
5841 | * then do not create aggregate route | |
5842 | */ | |
5843 | if (bgp_flag_check(bgp, BGP_FLAG_DELETE_IN_PROGRESS) || | |
5844 | (bgp->peer_self == NULL)) | |
5845 | return; | |
5846 | ||
d62a17ae | 5847 | /* ORIGIN attribute: If at least one route among routes that are |
5848 | aggregated has ORIGIN with the value INCOMPLETE, then the | |
5849 | aggregated route must have the ORIGIN attribute with the value | |
5850 | INCOMPLETE. Otherwise, if at least one route among routes that | |
5851 | are aggregated has ORIGIN with the value EGP, then the aggregated | |
5852 | route must have the origin attribute with the value EGP. In all | |
5853 | other case the value of the ORIGIN attribute of the aggregated | |
5854 | route is INTERNAL. */ | |
5855 | origin = BGP_ORIGIN_IGP; | |
718e3744 | 5856 | |
d62a17ae | 5857 | table = bgp->rib[afi][safi]; |
718e3744 | 5858 | |
d62a17ae | 5859 | top = bgp_node_get(table, p); |
5860 | for (rn = bgp_node_get(table, p); rn; | |
c2ff8b3e DS |
5861 | rn = bgp_route_next_until(rn, top)) { |
5862 | if (rn->p.prefixlen <= p->prefixlen) | |
5863 | continue; | |
d62a17ae | 5864 | |
c2ff8b3e | 5865 | match = 0; |
d62a17ae | 5866 | |
6f94b685 | 5867 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 | 5868 | if (BGP_PATH_HOLDDOWN(pi)) |
c2ff8b3e | 5869 | continue; |
718e3744 | 5870 | |
40381db7 | 5871 | if (pi->attr->flag |
c2ff8b3e DS |
5872 | & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE)) |
5873 | atomic_aggregate = 1; | |
d62a17ae | 5874 | |
40381db7 | 5875 | if (pi->sub_type == BGP_ROUTE_AGGREGATE) |
c2ff8b3e | 5876 | continue; |
d62a17ae | 5877 | |
f273fef1 DS |
5878 | /* |
5879 | * summary-only aggregate route suppress | |
5880 | * aggregated route announcements. | |
5881 | */ | |
c2ff8b3e | 5882 | if (aggregate->summary_only) { |
40381db7 DS |
5883 | (bgp_path_info_extra_get(pi))->suppress++; |
5884 | bgp_path_info_set_flag(rn, pi, | |
18ee8310 | 5885 | BGP_PATH_ATTR_CHANGED); |
c2ff8b3e | 5886 | match++; |
d62a17ae | 5887 | } |
c2ff8b3e DS |
5888 | |
5889 | aggregate->count++; | |
5890 | ||
f273fef1 DS |
5891 | /* |
5892 | * If at least one route among routes that are | |
5893 | * aggregated has ORIGIN with the value INCOMPLETE, | |
5894 | * then the aggregated route MUST have the ORIGIN | |
5895 | * attribute with the value INCOMPLETE. Otherwise, if | |
5896 | * at least one route among routes that are aggregated | |
5897 | * has ORIGIN with the value EGP, then the aggregated | |
5898 | * route MUST have the ORIGIN attribute with the value | |
5899 | * EGP. | |
5900 | */ | |
fc968841 NT |
5901 | switch (pi->attr->origin) { |
5902 | case BGP_ORIGIN_INCOMPLETE: | |
5903 | aggregate->incomplete_origin_count++; | |
5904 | break; | |
5905 | case BGP_ORIGIN_EGP: | |
5906 | aggregate->egp_origin_count++; | |
5907 | break; | |
5908 | default: | |
5909 | /*Do nothing. | |
5910 | */ | |
5911 | break; | |
5912 | } | |
c2ff8b3e DS |
5913 | |
5914 | if (!aggregate->as_set) | |
5915 | continue; | |
5916 | ||
f273fef1 DS |
5917 | /* |
5918 | * as-set aggregate route generate origin, as path, | |
5919 | * and community aggregation. | |
5920 | */ | |
fc968841 NT |
5921 | /* Compute aggregate route's as-path. |
5922 | */ | |
5923 | bgp_compute_aggregate_aspath(aggregate, | |
5924 | pi->attr->aspath); | |
c2ff8b3e | 5925 | |
fc968841 NT |
5926 | /* Compute aggregate route's community. |
5927 | */ | |
5928 | if (pi->attr->community) | |
5929 | bgp_compute_aggregate_community( | |
5930 | aggregate, | |
5931 | pi->attr->community); | |
dd18c5a9 | 5932 | |
fc968841 NT |
5933 | /* Compute aggregate route's extended community. |
5934 | */ | |
5935 | if (pi->attr->ecommunity) | |
5936 | bgp_compute_aggregate_ecommunity( | |
5937 | aggregate, | |
5938 | pi->attr->ecommunity); | |
5939 | ||
5940 | /* Compute aggregate route's large community. | |
5941 | */ | |
5942 | if (pi->attr->lcommunity) | |
5943 | bgp_compute_aggregate_lcommunity( | |
5944 | aggregate, | |
5945 | pi->attr->lcommunity); | |
d62a17ae | 5946 | } |
c2ff8b3e DS |
5947 | if (match) |
5948 | bgp_process(bgp, rn, afi, safi); | |
5949 | } | |
d62a17ae | 5950 | bgp_unlock_node(top); |
718e3744 | 5951 | |
718e3744 | 5952 | |
fc968841 NT |
5953 | if (aggregate->incomplete_origin_count > 0) |
5954 | origin = BGP_ORIGIN_INCOMPLETE; | |
5955 | else if (aggregate->egp_origin_count > 0) | |
5956 | origin = BGP_ORIGIN_EGP; | |
d62a17ae | 5957 | |
fc968841 NT |
5958 | if (aggregate->as_set) { |
5959 | if (aggregate->aspath) | |
5960 | /* Retrieve aggregate route's as-path. | |
5961 | */ | |
5962 | aspath = aspath_dup(aggregate->aspath); | |
d62a17ae | 5963 | |
fc968841 NT |
5964 | if (aggregate->community) |
5965 | /* Retrieve aggregate route's community. | |
5966 | */ | |
5967 | community = community_dup(aggregate->community); | |
3da2cc32 | 5968 | |
fc968841 NT |
5969 | if (aggregate->ecommunity) |
5970 | /* Retrieve aggregate route's ecommunity. | |
5971 | */ | |
5972 | ecommunity = ecommunity_dup(aggregate->ecommunity); | |
dd18c5a9 | 5973 | |
fc968841 NT |
5974 | if (aggregate->lcommunity) |
5975 | /* Retrieve aggregate route's lcommunity. | |
5976 | */ | |
5977 | lcommunity = lcommunity_dup(aggregate->lcommunity); | |
718e3744 | 5978 | } |
718e3744 | 5979 | |
c701010e | 5980 | bgp_aggregate_install(bgp, afi, safi, p, origin, aspath, community, |
dd18c5a9 DS |
5981 | ecommunity, lcommunity, atomic_aggregate, |
5982 | aggregate); | |
718e3744 | 5983 | } |
5984 | ||
3b7db173 DS |
5985 | static void bgp_aggregate_delete(struct bgp *bgp, struct prefix *p, afi_t afi, |
5986 | safi_t safi, struct bgp_aggregate *aggregate) | |
5987 | { | |
5988 | struct bgp_table *table; | |
5989 | struct bgp_node *top; | |
5990 | struct bgp_node *rn; | |
40381db7 | 5991 | struct bgp_path_info *pi; |
3b7db173 DS |
5992 | unsigned long match; |
5993 | ||
5994 | table = bgp->rib[afi][safi]; | |
5995 | ||
5996 | /* If routes exists below this node, generate aggregate routes. */ | |
5997 | top = bgp_node_get(table, p); | |
5998 | for (rn = bgp_node_get(table, p); rn; | |
5999 | rn = bgp_route_next_until(rn, top)) { | |
6000 | if (rn->p.prefixlen <= p->prefixlen) | |
6001 | continue; | |
6002 | match = 0; | |
6003 | ||
6f94b685 | 6004 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 | 6005 | if (BGP_PATH_HOLDDOWN(pi)) |
3b7db173 DS |
6006 | continue; |
6007 | ||
40381db7 | 6008 | if (pi->sub_type == BGP_ROUTE_AGGREGATE) |
3b7db173 DS |
6009 | continue; |
6010 | ||
40381db7 DS |
6011 | if (aggregate->summary_only && pi->extra) { |
6012 | pi->extra->suppress--; | |
3b7db173 | 6013 | |
40381db7 | 6014 | if (pi->extra->suppress == 0) { |
18ee8310 | 6015 | bgp_path_info_set_flag( |
40381db7 | 6016 | rn, pi, BGP_PATH_ATTR_CHANGED); |
3b7db173 DS |
6017 | match++; |
6018 | } | |
6019 | } | |
6020 | aggregate->count--; | |
fc968841 NT |
6021 | |
6022 | if (pi->attr->origin == BGP_ORIGIN_INCOMPLETE) | |
6023 | aggregate->incomplete_origin_count--; | |
6024 | else if (pi->attr->origin == BGP_ORIGIN_EGP) | |
6025 | aggregate->egp_origin_count--; | |
6026 | ||
6027 | if (aggregate->as_set) { | |
6028 | /* Remove as-path from aggregate. | |
6029 | */ | |
6030 | bgp_remove_aspath_from_aggregate( | |
6031 | aggregate, | |
6032 | pi->attr->aspath); | |
6033 | ||
6034 | if (pi->attr->community) | |
6035 | /* Remove community from aggregate. | |
6036 | */ | |
6037 | bgp_remove_community_from_aggregate( | |
6038 | aggregate, | |
6039 | pi->attr->community); | |
6040 | ||
6041 | if (pi->attr->ecommunity) | |
6042 | /* Remove ecommunity from aggregate. | |
6043 | */ | |
6044 | bgp_remove_ecommunity_from_aggregate( | |
6045 | aggregate, | |
6046 | pi->attr->ecommunity); | |
6047 | ||
6048 | if (pi->attr->lcommunity) | |
6049 | /* Remove lcommunity from aggregate. | |
6050 | */ | |
6051 | bgp_remove_lcommunity_from_aggregate( | |
6052 | aggregate, | |
6053 | pi->attr->lcommunity); | |
6054 | } | |
6055 | ||
3b7db173 DS |
6056 | } |
6057 | ||
6058 | /* If this node was suppressed, process the change. */ | |
6059 | if (match) | |
6060 | bgp_process(bgp, rn, afi, safi); | |
6061 | } | |
6062 | bgp_unlock_node(top); | |
6063 | } | |
718e3744 | 6064 | |
fc968841 NT |
6065 | static void bgp_add_route_to_aggregate(struct bgp *bgp, struct prefix *aggr_p, |
6066 | struct bgp_path_info *pinew, afi_t afi, | |
6067 | safi_t safi, | |
6068 | struct bgp_aggregate *aggregate) | |
6069 | { | |
6070 | uint8_t origin; | |
6071 | struct aspath *aspath = NULL; | |
6072 | uint8_t atomic_aggregate = 0; | |
6073 | struct community *community = NULL; | |
6074 | struct ecommunity *ecommunity = NULL; | |
6075 | struct lcommunity *lcommunity = NULL; | |
6076 | ||
6077 | /* ORIGIN attribute: If at least one route among routes that are | |
6078 | * aggregated has ORIGIN with the value INCOMPLETE, then the | |
6079 | * aggregated route must have the ORIGIN attribute with the value | |
6080 | * INCOMPLETE. Otherwise, if at least one route among routes that | |
6081 | * are aggregated has ORIGIN with the value EGP, then the aggregated | |
6082 | * route must have the origin attribute with the value EGP. In all | |
6083 | * other case the value of the ORIGIN attribute of the aggregated | |
6084 | * route is INTERNAL. | |
6085 | */ | |
6086 | origin = BGP_ORIGIN_IGP; | |
6087 | ||
6088 | aggregate->count++; | |
6089 | ||
6090 | if (aggregate->summary_only) | |
6091 | (bgp_path_info_extra_get(pinew))->suppress++; | |
6092 | ||
6093 | switch (pinew->attr->origin) { | |
6094 | case BGP_ORIGIN_INCOMPLETE: | |
6095 | aggregate->incomplete_origin_count++; | |
6096 | break; | |
6097 | case BGP_ORIGIN_EGP: | |
6098 | aggregate->egp_origin_count++; | |
6099 | break; | |
6100 | default: | |
6101 | /* Do nothing. | |
6102 | */ | |
6103 | break; | |
6104 | } | |
6105 | ||
6106 | if (aggregate->incomplete_origin_count > 0) | |
6107 | origin = BGP_ORIGIN_INCOMPLETE; | |
6108 | else if (aggregate->egp_origin_count > 0) | |
6109 | origin = BGP_ORIGIN_EGP; | |
6110 | ||
6111 | if (aggregate->as_set) { | |
6112 | /* Compute aggregate route's as-path. | |
6113 | */ | |
6114 | bgp_compute_aggregate_aspath(aggregate, | |
6115 | pinew->attr->aspath); | |
6116 | ||
6117 | /* Compute aggregate route's community. | |
6118 | */ | |
6119 | if (pinew->attr->community) | |
6120 | bgp_compute_aggregate_community( | |
6121 | aggregate, | |
6122 | pinew->attr->community); | |
6123 | ||
6124 | /* Compute aggregate route's extended community. | |
6125 | */ | |
6126 | if (pinew->attr->ecommunity) | |
6127 | bgp_compute_aggregate_ecommunity( | |
6128 | aggregate, | |
6129 | pinew->attr->ecommunity); | |
6130 | ||
6131 | /* Compute aggregate route's large community. | |
6132 | */ | |
6133 | if (pinew->attr->lcommunity) | |
6134 | bgp_compute_aggregate_lcommunity( | |
6135 | aggregate, | |
6136 | pinew->attr->lcommunity); | |
6137 | ||
6138 | /* Retrieve aggregate route's as-path. | |
6139 | */ | |
6140 | if (aggregate->aspath) | |
6141 | aspath = aspath_dup(aggregate->aspath); | |
6142 | ||
6143 | /* Retrieve aggregate route's community. | |
6144 | */ | |
6145 | if (aggregate->community) | |
6146 | community = community_dup(aggregate->community); | |
6147 | ||
6148 | /* Retrieve aggregate route's ecommunity. | |
6149 | */ | |
6150 | if (aggregate->ecommunity) | |
6151 | ecommunity = ecommunity_dup(aggregate->ecommunity); | |
6152 | ||
6153 | /* Retrieve aggregate route's lcommunity. | |
6154 | */ | |
6155 | if (aggregate->lcommunity) | |
6156 | lcommunity = lcommunity_dup(aggregate->lcommunity); | |
6157 | } | |
6158 | ||
6159 | bgp_aggregate_install(bgp, afi, safi, aggr_p, origin, | |
6160 | aspath, community, ecommunity, | |
6161 | lcommunity, atomic_aggregate, aggregate); | |
6162 | } | |
6163 | ||
6164 | static void bgp_remove_route_from_aggregate(struct bgp *bgp, afi_t afi, | |
6165 | safi_t safi, | |
6166 | struct bgp_path_info *pi, | |
6167 | struct bgp_aggregate *aggregate, | |
6168 | struct prefix *aggr_p) | |
6169 | { | |
6170 | uint8_t origin; | |
6171 | struct aspath *aspath = NULL; | |
6172 | uint8_t atomic_aggregate = 0; | |
6173 | struct community *community = NULL; | |
6174 | struct ecommunity *ecommunity = NULL; | |
6175 | struct lcommunity *lcommunity = NULL; | |
6176 | unsigned long match = 0; | |
6177 | ||
6178 | if (BGP_PATH_HOLDDOWN(pi)) | |
6179 | return; | |
6180 | ||
6181 | if (pi->sub_type == BGP_ROUTE_AGGREGATE) | |
6182 | return; | |
6183 | ||
6184 | if (aggregate->summary_only | |
6185 | && pi->extra | |
6186 | && pi->extra->suppress > 0) { | |
6187 | pi->extra->suppress--; | |
6188 | ||
6189 | if (pi->extra->suppress == 0) { | |
6190 | bgp_path_info_set_flag(pi->net, pi, | |
6191 | BGP_PATH_ATTR_CHANGED); | |
6192 | match++; | |
6193 | } | |
6194 | } | |
6195 | ||
6196 | if (aggregate->count > 0) | |
6197 | aggregate->count--; | |
6198 | ||
6199 | if (pi->attr->origin == BGP_ORIGIN_INCOMPLETE) | |
6200 | aggregate->incomplete_origin_count--; | |
6201 | else if (pi->attr->origin == BGP_ORIGIN_EGP) | |
6202 | aggregate->egp_origin_count--; | |
6203 | ||
6204 | if (aggregate->as_set) { | |
6205 | /* Remove as-path from aggregate. | |
6206 | */ | |
6207 | bgp_remove_aspath_from_aggregate(aggregate, | |
6208 | pi->attr->aspath); | |
6209 | ||
6210 | if (pi->attr->community) | |
6211 | /* Remove community from aggregate. | |
6212 | */ | |
6213 | bgp_remove_community_from_aggregate( | |
6214 | aggregate, | |
6215 | pi->attr->community); | |
6216 | ||
6217 | if (pi->attr->ecommunity) | |
6218 | /* Remove ecommunity from aggregate. | |
6219 | */ | |
6220 | bgp_remove_ecommunity_from_aggregate( | |
6221 | aggregate, | |
6222 | pi->attr->ecommunity); | |
6223 | ||
6224 | if (pi->attr->lcommunity) | |
6225 | /* Remove lcommunity from aggregate. | |
6226 | */ | |
6227 | bgp_remove_lcommunity_from_aggregate( | |
6228 | aggregate, | |
6229 | pi->attr->lcommunity); | |
6230 | } | |
6231 | ||
6232 | /* If this node was suppressed, process the change. */ | |
6233 | if (match) | |
6234 | bgp_process(bgp, pi->net, afi, safi); | |
6235 | ||
6236 | origin = BGP_ORIGIN_IGP; | |
6237 | if (aggregate->incomplete_origin_count > 0) | |
6238 | origin = BGP_ORIGIN_INCOMPLETE; | |
6239 | else if (aggregate->egp_origin_count > 0) | |
6240 | origin = BGP_ORIGIN_EGP; | |
6241 | ||
6242 | if (aggregate->as_set) { | |
6243 | /* Retrieve aggregate route's as-path. | |
6244 | */ | |
6245 | if (aggregate->aspath) | |
6246 | aspath = aspath_dup(aggregate->aspath); | |
6247 | ||
6248 | /* Retrieve aggregate route's community. | |
6249 | */ | |
6250 | if (aggregate->community) | |
6251 | community = community_dup(aggregate->community); | |
6252 | ||
6253 | /* Retrieve aggregate route's ecommunity. | |
6254 | */ | |
6255 | if (aggregate->ecommunity) | |
6256 | ecommunity = ecommunity_dup(aggregate->ecommunity); | |
6257 | ||
6258 | /* Retrieve aggregate route's lcommunity. | |
6259 | */ | |
6260 | if (aggregate->lcommunity) | |
6261 | lcommunity = lcommunity_dup(aggregate->lcommunity); | |
6262 | } | |
6263 | ||
6264 | bgp_aggregate_install(bgp, afi, safi, aggr_p, origin, | |
6265 | aspath, community, ecommunity, | |
6266 | lcommunity, atomic_aggregate, aggregate); | |
6267 | } | |
6268 | ||
d62a17ae | 6269 | void bgp_aggregate_increment(struct bgp *bgp, struct prefix *p, |
40381db7 | 6270 | struct bgp_path_info *pi, afi_t afi, safi_t safi) |
718e3744 | 6271 | { |
d62a17ae | 6272 | struct bgp_node *child; |
6273 | struct bgp_node *rn; | |
6274 | struct bgp_aggregate *aggregate; | |
6275 | struct bgp_table *table; | |
718e3744 | 6276 | |
d62a17ae | 6277 | table = bgp->aggregate[afi][safi]; |
f018db83 | 6278 | |
d62a17ae | 6279 | /* No aggregates configured. */ |
6280 | if (bgp_table_top_nolock(table) == NULL) | |
6281 | return; | |
f018db83 | 6282 | |
d62a17ae | 6283 | if (p->prefixlen == 0) |
6284 | return; | |
718e3744 | 6285 | |
40381db7 | 6286 | if (BGP_PATH_HOLDDOWN(pi)) |
d62a17ae | 6287 | return; |
718e3744 | 6288 | |
d62a17ae | 6289 | child = bgp_node_get(table, p); |
718e3744 | 6290 | |
d62a17ae | 6291 | /* Aggregate address configuration check. */ |
b1e62edd | 6292 | for (rn = child; rn; rn = bgp_node_parent_nolock(rn)) { |
b613a918 | 6293 | aggregate = bgp_node_get_bgp_aggregate_info(rn); |
b1e62edd | 6294 | if (aggregate != NULL && rn->p.prefixlen < p->prefixlen) { |
fc968841 NT |
6295 | bgp_add_route_to_aggregate(bgp, &rn->p, pi, afi, |
6296 | safi, aggregate); | |
d62a17ae | 6297 | } |
b1e62edd | 6298 | } |
d62a17ae | 6299 | bgp_unlock_node(child); |
718e3744 | 6300 | } |
6301 | ||
d62a17ae | 6302 | void bgp_aggregate_decrement(struct bgp *bgp, struct prefix *p, |
4b7e6066 | 6303 | struct bgp_path_info *del, afi_t afi, safi_t safi) |
718e3744 | 6304 | { |
d62a17ae | 6305 | struct bgp_node *child; |
6306 | struct bgp_node *rn; | |
6307 | struct bgp_aggregate *aggregate; | |
6308 | struct bgp_table *table; | |
718e3744 | 6309 | |
d62a17ae | 6310 | table = bgp->aggregate[afi][safi]; |
718e3744 | 6311 | |
d62a17ae | 6312 | /* No aggregates configured. */ |
6313 | if (bgp_table_top_nolock(table) == NULL) | |
6314 | return; | |
718e3744 | 6315 | |
d62a17ae | 6316 | if (p->prefixlen == 0) |
6317 | return; | |
718e3744 | 6318 | |
d62a17ae | 6319 | child = bgp_node_get(table, p); |
718e3744 | 6320 | |
d62a17ae | 6321 | /* Aggregate address configuration check. */ |
b1e62edd | 6322 | for (rn = child; rn; rn = bgp_node_parent_nolock(rn)) { |
b613a918 | 6323 | aggregate = bgp_node_get_bgp_aggregate_info(rn); |
b1e62edd | 6324 | if (aggregate != NULL && rn->p.prefixlen < p->prefixlen) { |
fc968841 NT |
6325 | bgp_remove_route_from_aggregate(bgp, afi, safi, |
6326 | del, aggregate, &rn->p); | |
d62a17ae | 6327 | } |
b1e62edd | 6328 | } |
d62a17ae | 6329 | bgp_unlock_node(child); |
6330 | } | |
718e3744 | 6331 | |
718e3744 | 6332 | /* Aggregate route attribute. */ |
6333 | #define AGGREGATE_SUMMARY_ONLY 1 | |
6334 | #define AGGREGATE_AS_SET 1 | |
6335 | ||
d62a17ae | 6336 | static int bgp_aggregate_unset(struct vty *vty, const char *prefix_str, |
6337 | afi_t afi, safi_t safi) | |
718e3744 | 6338 | { |
d62a17ae | 6339 | VTY_DECLVAR_CONTEXT(bgp, bgp); |
6340 | int ret; | |
6341 | struct prefix p; | |
6342 | struct bgp_node *rn; | |
6343 | struct bgp_aggregate *aggregate; | |
718e3744 | 6344 | |
d62a17ae | 6345 | /* Convert string to prefix structure. */ |
6346 | ret = str2prefix(prefix_str, &p); | |
6347 | if (!ret) { | |
6348 | vty_out(vty, "Malformed prefix\n"); | |
6349 | return CMD_WARNING_CONFIG_FAILED; | |
6350 | } | |
6351 | apply_mask(&p); | |
6352 | ||
6353 | /* Old configuration check. */ | |
6354 | rn = bgp_node_lookup(bgp->aggregate[afi][safi], &p); | |
6355 | if (!rn) { | |
6356 | vty_out(vty, | |
6357 | "%% There is no aggregate-address configuration.\n"); | |
6358 | return CMD_WARNING_CONFIG_FAILED; | |
6359 | } | |
f6269b4f | 6360 | |
b613a918 | 6361 | aggregate = bgp_node_get_bgp_aggregate_info(rn); |
09990cdd | 6362 | bgp_aggregate_delete(bgp, &p, afi, safi, aggregate); |
dd18c5a9 DS |
6363 | bgp_aggregate_install(bgp, afi, safi, &p, 0, NULL, NULL, |
6364 | NULL, NULL, 0, aggregate); | |
d62a17ae | 6365 | |
6366 | /* Unlock aggregate address configuration. */ | |
b613a918 | 6367 | bgp_node_set_bgp_aggregate_info(rn, NULL); |
fc968841 NT |
6368 | |
6369 | if (aggregate->community) | |
6370 | community_free(&aggregate->community); | |
6371 | ||
6372 | if (aggregate->community_hash) { | |
6373 | /* Delete all communities in the hash. | |
6374 | */ | |
6375 | hash_clean(aggregate->community_hash, | |
6376 | bgp_aggr_community_remove); | |
6377 | /* Free up the community_hash. | |
6378 | */ | |
6379 | hash_free(aggregate->community_hash); | |
6380 | } | |
6381 | ||
6382 | if (aggregate->ecommunity) | |
6383 | ecommunity_free(&aggregate->ecommunity); | |
6384 | ||
6385 | if (aggregate->ecommunity_hash) { | |
6386 | /* Delete all ecommunities in the hash. | |
6387 | */ | |
6388 | hash_clean(aggregate->ecommunity_hash, | |
6389 | bgp_aggr_ecommunity_remove); | |
6390 | /* Free up the ecommunity_hash. | |
6391 | */ | |
6392 | hash_free(aggregate->ecommunity_hash); | |
6393 | } | |
6394 | ||
6395 | if (aggregate->lcommunity) | |
6396 | lcommunity_free(&aggregate->lcommunity); | |
6397 | ||
6398 | if (aggregate->lcommunity_hash) { | |
6399 | /* Delete all lcommunities in the hash. | |
6400 | */ | |
6401 | hash_clean(aggregate->lcommunity_hash, | |
6402 | bgp_aggr_lcommunity_remove); | |
6403 | /* Free up the lcommunity_hash. | |
6404 | */ | |
6405 | hash_free(aggregate->lcommunity_hash); | |
6406 | } | |
6407 | ||
6408 | if (aggregate->aspath) | |
6409 | aspath_free(aggregate->aspath); | |
6410 | ||
6411 | if (aggregate->aspath_hash) { | |
6412 | /* Delete all as-paths in the hash. | |
6413 | */ | |
6414 | hash_clean(aggregate->aspath_hash, | |
6415 | bgp_aggr_aspath_remove); | |
6416 | /* Free up the aspath_hash. | |
6417 | */ | |
6418 | hash_free(aggregate->aspath_hash); | |
6419 | } | |
6420 | ||
d62a17ae | 6421 | bgp_aggregate_free(aggregate); |
6422 | bgp_unlock_node(rn); | |
6423 | bgp_unlock_node(rn); | |
6424 | ||
6425 | return CMD_SUCCESS; | |
6426 | } | |
6427 | ||
6428 | static int bgp_aggregate_set(struct vty *vty, const char *prefix_str, afi_t afi, | |
d7c0a89a | 6429 | safi_t safi, uint8_t summary_only, uint8_t as_set) |
d62a17ae | 6430 | { |
6431 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
6432 | int ret; | |
6433 | struct prefix p; | |
6434 | struct bgp_node *rn; | |
6435 | struct bgp_aggregate *aggregate; | |
6436 | ||
6437 | /* Convert string to prefix structure. */ | |
6438 | ret = str2prefix(prefix_str, &p); | |
6439 | if (!ret) { | |
6440 | vty_out(vty, "Malformed prefix\n"); | |
6441 | return CMD_WARNING_CONFIG_FAILED; | |
6442 | } | |
6443 | apply_mask(&p); | |
6444 | ||
3624ac81 DS |
6445 | if ((afi == AFI_IP && p.prefixlen == IPV4_MAX_BITLEN) || |
6446 | (afi == AFI_IP6 && p.prefixlen == IPV6_MAX_BITLEN)) { | |
6447 | vty_out(vty, "Specified prefix: %s will not result in any useful aggregation, disallowing\n", | |
6448 | prefix_str); | |
6449 | return CMD_WARNING_CONFIG_FAILED; | |
6450 | } | |
6451 | ||
d62a17ae | 6452 | /* Old configuration check. */ |
6453 | rn = bgp_node_get(bgp->aggregate[afi][safi], &p); | |
6454 | ||
67009e22 | 6455 | if (bgp_node_has_bgp_path_info_data(rn)) { |
d62a17ae | 6456 | vty_out(vty, "There is already same aggregate network.\n"); |
6457 | /* try to remove the old entry */ | |
6458 | ret = bgp_aggregate_unset(vty, prefix_str, afi, safi); | |
6459 | if (ret) { | |
6460 | vty_out(vty, "Error deleting aggregate.\n"); | |
6461 | bgp_unlock_node(rn); | |
6462 | return CMD_WARNING_CONFIG_FAILED; | |
6463 | } | |
6464 | } | |
718e3744 | 6465 | |
d62a17ae | 6466 | /* Make aggregate address structure. */ |
6467 | aggregate = bgp_aggregate_new(); | |
6468 | aggregate->summary_only = summary_only; | |
6469 | aggregate->as_set = as_set; | |
6470 | aggregate->safi = safi; | |
b613a918 | 6471 | bgp_node_set_bgp_aggregate_info(rn, aggregate); |
718e3744 | 6472 | |
d62a17ae | 6473 | /* Aggregate address insert into BGP routing table. */ |
fc968841 | 6474 | bgp_aggregate_route(bgp, &p, afi, safi, aggregate); |
718e3744 | 6475 | |
d62a17ae | 6476 | return CMD_SUCCESS; |
718e3744 | 6477 | } |
6478 | ||
6479 | DEFUN (aggregate_address, | |
6480 | aggregate_address_cmd, | |
e3e6107d | 6481 | "aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]", |
718e3744 | 6482 | "Configure BGP aggregate entries\n" |
6483 | "Aggregate prefix\n" | |
6484 | "Generate AS set path information\n" | |
a636c635 DW |
6485 | "Filter more specific routes from updates\n" |
6486 | "Filter more specific routes from updates\n" | |
6487 | "Generate AS set path information\n") | |
718e3744 | 6488 | { |
d62a17ae | 6489 | int idx = 0; |
6490 | argv_find(argv, argc, "A.B.C.D/M", &idx); | |
6491 | char *prefix = argv[idx]->arg; | |
6492 | int as_set = | |
6493 | argv_find(argv, argc, "as-set", &idx) ? AGGREGATE_AS_SET : 0; | |
6494 | idx = 0; | |
6495 | int summary_only = argv_find(argv, argc, "summary-only", &idx) | |
6496 | ? AGGREGATE_SUMMARY_ONLY | |
6497 | : 0; | |
e3e6107d | 6498 | |
d62a17ae | 6499 | return bgp_aggregate_set(vty, prefix, AFI_IP, bgp_node_safi(vty), |
6500 | summary_only, as_set); | |
718e3744 | 6501 | } |
6502 | ||
e3e6107d QY |
6503 | DEFUN (aggregate_address_mask, |
6504 | aggregate_address_mask_cmd, | |
6505 | "aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]", | |
718e3744 | 6506 | "Configure BGP aggregate entries\n" |
6507 | "Aggregate address\n" | |
6508 | "Aggregate mask\n" | |
6509 | "Generate AS set path information\n" | |
a636c635 DW |
6510 | "Filter more specific routes from updates\n" |
6511 | "Filter more specific routes from updates\n" | |
6512 | "Generate AS set path information\n") | |
718e3744 | 6513 | { |
d62a17ae | 6514 | int idx = 0; |
6515 | argv_find(argv, argc, "A.B.C.D", &idx); | |
6516 | char *prefix = argv[idx]->arg; | |
6517 | char *mask = argv[idx + 1]->arg; | |
6518 | int as_set = | |
6519 | argv_find(argv, argc, "as-set", &idx) ? AGGREGATE_AS_SET : 0; | |
6520 | idx = 0; | |
6521 | int summary_only = argv_find(argv, argc, "summary-only", &idx) | |
6522 | ? AGGREGATE_SUMMARY_ONLY | |
6523 | : 0; | |
6524 | ||
6525 | char prefix_str[BUFSIZ]; | |
6526 | int ret = netmask_str2prefix_str(prefix, mask, prefix_str); | |
6527 | ||
6528 | if (!ret) { | |
6529 | vty_out(vty, "%% Inconsistent address and mask\n"); | |
6530 | return CMD_WARNING_CONFIG_FAILED; | |
6531 | } | |
718e3744 | 6532 | |
d62a17ae | 6533 | return bgp_aggregate_set(vty, prefix_str, AFI_IP, bgp_node_safi(vty), |
6534 | summary_only, as_set); | |
718e3744 | 6535 | } |
6536 | ||
718e3744 | 6537 | DEFUN (no_aggregate_address, |
6538 | no_aggregate_address_cmd, | |
e3e6107d | 6539 | "no aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]", |
718e3744 | 6540 | NO_STR |
6541 | "Configure BGP aggregate entries\n" | |
a636c635 DW |
6542 | "Aggregate prefix\n" |
6543 | "Generate AS set path information\n" | |
e3e6107d QY |
6544 | "Filter more specific routes from updates\n" |
6545 | "Filter more specific routes from updates\n" | |
6546 | "Generate AS set path information\n") | |
718e3744 | 6547 | { |
d62a17ae | 6548 | int idx = 0; |
6549 | argv_find(argv, argc, "A.B.C.D/M", &idx); | |
6550 | char *prefix = argv[idx]->arg; | |
6551 | return bgp_aggregate_unset(vty, prefix, AFI_IP, bgp_node_safi(vty)); | |
718e3744 | 6552 | } |
6553 | ||
718e3744 | 6554 | DEFUN (no_aggregate_address_mask, |
6555 | no_aggregate_address_mask_cmd, | |
e3e6107d | 6556 | "no aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]", |
718e3744 | 6557 | NO_STR |
6558 | "Configure BGP aggregate entries\n" | |
6559 | "Aggregate address\n" | |
a636c635 DW |
6560 | "Aggregate mask\n" |
6561 | "Generate AS set path information\n" | |
e3e6107d QY |
6562 | "Filter more specific routes from updates\n" |
6563 | "Filter more specific routes from updates\n" | |
6564 | "Generate AS set path information\n") | |
718e3744 | 6565 | { |
d62a17ae | 6566 | int idx = 0; |
6567 | argv_find(argv, argc, "A.B.C.D", &idx); | |
6568 | char *prefix = argv[idx]->arg; | |
6569 | char *mask = argv[idx + 1]->arg; | |
718e3744 | 6570 | |
d62a17ae | 6571 | char prefix_str[BUFSIZ]; |
6572 | int ret = netmask_str2prefix_str(prefix, mask, prefix_str); | |
718e3744 | 6573 | |
d62a17ae | 6574 | if (!ret) { |
6575 | vty_out(vty, "%% Inconsistent address and mask\n"); | |
6576 | return CMD_WARNING_CONFIG_FAILED; | |
6577 | } | |
718e3744 | 6578 | |
d62a17ae | 6579 | return bgp_aggregate_unset(vty, prefix_str, AFI_IP, bgp_node_safi(vty)); |
718e3744 | 6580 | } |
6581 | ||
718e3744 | 6582 | DEFUN (ipv6_aggregate_address, |
6583 | ipv6_aggregate_address_cmd, | |
5101fece | 6584 | "aggregate-address X:X::X:X/M [<as-set [summary-only]|summary-only [as-set]>]", |
718e3744 | 6585 | "Configure BGP aggregate entries\n" |
6586 | "Aggregate prefix\n" | |
5101fece | 6587 | "Generate AS set path information\n" |
6588 | "Filter more specific routes from updates\n" | |
6589 | "Filter more specific routes from updates\n" | |
6590 | "Generate AS set path information\n") | |
718e3744 | 6591 | { |
d62a17ae | 6592 | int idx = 0; |
6593 | argv_find(argv, argc, "X:X::X:X/M", &idx); | |
6594 | char *prefix = argv[idx]->arg; | |
5101fece | 6595 | int as_set = |
6596 | argv_find(argv, argc, "as-set", &idx) ? AGGREGATE_AS_SET : 0; | |
6597 | ||
6598 | idx = 0; | |
d62a17ae | 6599 | int sum_only = argv_find(argv, argc, "summary-only", &idx) |
6600 | ? AGGREGATE_SUMMARY_ONLY | |
6601 | : 0; | |
6602 | return bgp_aggregate_set(vty, prefix, AFI_IP6, SAFI_UNICAST, sum_only, | |
5101fece | 6603 | as_set); |
718e3744 | 6604 | } |
6605 | ||
6606 | DEFUN (no_ipv6_aggregate_address, | |
6607 | no_ipv6_aggregate_address_cmd, | |
5101fece | 6608 | "no aggregate-address X:X::X:X/M [<as-set [summary-only]|summary-only [as-set]>]", |
718e3744 | 6609 | NO_STR |
6610 | "Configure BGP aggregate entries\n" | |
16cedbb0 | 6611 | "Aggregate prefix\n" |
5101fece | 6612 | "Generate AS set path information\n" |
6613 | "Filter more specific routes from updates\n" | |
6614 | "Filter more specific routes from updates\n" | |
6615 | "Generate AS set path information\n") | |
718e3744 | 6616 | { |
d62a17ae | 6617 | int idx = 0; |
6618 | argv_find(argv, argc, "X:X::X:X/M", &idx); | |
6619 | char *prefix = argv[idx]->arg; | |
6620 | return bgp_aggregate_unset(vty, prefix, AFI_IP6, SAFI_UNICAST); | |
718e3744 | 6621 | } |
6622 | ||
718e3744 | 6623 | /* Redistribute route treatment. */ |
d62a17ae | 6624 | void bgp_redistribute_add(struct bgp *bgp, struct prefix *p, |
9de1f7ff DS |
6625 | const union g_addr *nexthop, ifindex_t ifindex, |
6626 | enum nexthop_types_t nhtype, uint32_t metric, | |
d7c0a89a QY |
6627 | uint8_t type, unsigned short instance, |
6628 | route_tag_t tag) | |
d62a17ae | 6629 | { |
4b7e6066 | 6630 | struct bgp_path_info *new; |
40381db7 DS |
6631 | struct bgp_path_info *bpi; |
6632 | struct bgp_path_info rmap_path; | |
d62a17ae | 6633 | struct bgp_node *bn; |
6634 | struct attr attr; | |
6635 | struct attr *new_attr; | |
6636 | afi_t afi; | |
b68885f9 | 6637 | route_map_result_t ret; |
d62a17ae | 6638 | struct bgp_redist *red; |
6639 | ||
6640 | /* Make default attribute. */ | |
6641 | bgp_attr_default_set(&attr, BGP_ORIGIN_INCOMPLETE); | |
9de1f7ff | 6642 | |
a4d82a8a | 6643 | switch (nhtype) { |
9de1f7ff DS |
6644 | case NEXTHOP_TYPE_IFINDEX: |
6645 | break; | |
6646 | case NEXTHOP_TYPE_IPV4: | |
6647 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
6648 | attr.nexthop = nexthop->ipv4; | |
6649 | break; | |
6650 | case NEXTHOP_TYPE_IPV6: | |
6651 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
6652 | attr.mp_nexthop_global = nexthop->ipv6; | |
6653 | attr.mp_nexthop_len = BGP_ATTR_NHLEN_IPV6_GLOBAL; | |
6654 | break; | |
6655 | case NEXTHOP_TYPE_BLACKHOLE: | |
74489921 RW |
6656 | switch (p->family) { |
6657 | case AF_INET: | |
9de1f7ff | 6658 | attr.nexthop.s_addr = INADDR_ANY; |
74489921 RW |
6659 | break; |
6660 | case AF_INET6: | |
9de1f7ff DS |
6661 | memset(&attr.mp_nexthop_global, 0, |
6662 | sizeof(attr.mp_nexthop_global)); | |
74489921 | 6663 | attr.mp_nexthop_len = BGP_ATTR_NHLEN_IPV6_GLOBAL; |
9de1f7ff | 6664 | break; |
74489921 | 6665 | } |
9de1f7ff | 6666 | break; |
d62a17ae | 6667 | } |
74489921 | 6668 | attr.nh_ifindex = ifindex; |
f04a80a5 | 6669 | |
d62a17ae | 6670 | attr.med = metric; |
6671 | attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC); | |
6672 | attr.tag = tag; | |
718e3744 | 6673 | |
d62a17ae | 6674 | afi = family2afi(p->family); |
6aeb9e78 | 6675 | |
d62a17ae | 6676 | red = bgp_redist_lookup(bgp, afi, type, instance); |
6677 | if (red) { | |
6678 | struct attr attr_new; | |
718e3744 | 6679 | |
d62a17ae | 6680 | /* Copy attribute for modification. */ |
6681 | bgp_attr_dup(&attr_new, &attr); | |
718e3744 | 6682 | |
d62a17ae | 6683 | if (red->redist_metric_flag) |
6684 | attr_new.med = red->redist_metric; | |
718e3744 | 6685 | |
d62a17ae | 6686 | /* Apply route-map. */ |
6687 | if (red->rmap.name) { | |
40381db7 DS |
6688 | memset(&rmap_path, 0, sizeof(struct bgp_path_info)); |
6689 | rmap_path.peer = bgp->peer_self; | |
6690 | rmap_path.attr = &attr_new; | |
718e3744 | 6691 | |
d62a17ae | 6692 | SET_FLAG(bgp->peer_self->rmap_type, |
6693 | PEER_RMAP_TYPE_REDISTRIBUTE); | |
6694 | ||
6695 | ret = route_map_apply(red->rmap.map, p, RMAP_BGP, | |
40381db7 | 6696 | &rmap_path); |
d62a17ae | 6697 | |
6698 | bgp->peer_self->rmap_type = 0; | |
6699 | ||
6700 | if (ret == RMAP_DENYMATCH) { | |
6701 | /* Free uninterned attribute. */ | |
6702 | bgp_attr_flush(&attr_new); | |
6703 | ||
6704 | /* Unintern original. */ | |
6705 | aspath_unintern(&attr.aspath); | |
6706 | bgp_redistribute_delete(bgp, p, type, instance); | |
6707 | return; | |
6708 | } | |
6709 | } | |
6710 | ||
7f323236 DW |
6711 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) |
6712 | bgp_attr_add_gshut_community(&attr_new); | |
6713 | ||
d62a17ae | 6714 | bn = bgp_afi_node_get(bgp->rib[afi][SAFI_UNICAST], afi, |
6715 | SAFI_UNICAST, p, NULL); | |
6716 | ||
6717 | new_attr = bgp_attr_intern(&attr_new); | |
6718 | ||
6f94b685 DS |
6719 | for (bpi = bgp_node_get_bgp_path_info(bn); bpi; |
6720 | bpi = bpi->next) | |
40381db7 DS |
6721 | if (bpi->peer == bgp->peer_self |
6722 | && bpi->sub_type == BGP_ROUTE_REDISTRIBUTE) | |
d62a17ae | 6723 | break; |
6724 | ||
40381db7 | 6725 | if (bpi) { |
d62a17ae | 6726 | /* Ensure the (source route) type is updated. */ |
40381db7 DS |
6727 | bpi->type = type; |
6728 | if (attrhash_cmp(bpi->attr, new_attr) | |
6729 | && !CHECK_FLAG(bpi->flags, BGP_PATH_REMOVED)) { | |
d62a17ae | 6730 | bgp_attr_unintern(&new_attr); |
6731 | aspath_unintern(&attr.aspath); | |
6732 | bgp_unlock_node(bn); | |
6733 | return; | |
6734 | } else { | |
6735 | /* The attribute is changed. */ | |
40381db7 | 6736 | bgp_path_info_set_flag(bn, bpi, |
18ee8310 | 6737 | BGP_PATH_ATTR_CHANGED); |
d62a17ae | 6738 | |
6739 | /* Rewrite BGP route information. */ | |
40381db7 DS |
6740 | if (CHECK_FLAG(bpi->flags, BGP_PATH_REMOVED)) |
6741 | bgp_path_info_restore(bn, bpi); | |
d62a17ae | 6742 | else |
40381db7 DS |
6743 | bgp_aggregate_decrement( |
6744 | bgp, p, bpi, afi, SAFI_UNICAST); | |
6745 | bgp_attr_unintern(&bpi->attr); | |
6746 | bpi->attr = new_attr; | |
6747 | bpi->uptime = bgp_clock(); | |
d62a17ae | 6748 | |
6749 | /* Process change. */ | |
40381db7 | 6750 | bgp_aggregate_increment(bgp, p, bpi, afi, |
d62a17ae | 6751 | SAFI_UNICAST); |
6752 | bgp_process(bgp, bn, afi, SAFI_UNICAST); | |
6753 | bgp_unlock_node(bn); | |
6754 | aspath_unintern(&attr.aspath); | |
ddb5b488 PZ |
6755 | |
6756 | if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
6757 | || (bgp->inst_type | |
6758 | == BGP_INSTANCE_TYPE_DEFAULT)) { | |
6759 | ||
6760 | vpn_leak_from_vrf_update( | |
40381db7 | 6761 | bgp_get_default(), bgp, bpi); |
ddb5b488 | 6762 | } |
d62a17ae | 6763 | return; |
6764 | } | |
6765 | } | |
6766 | ||
6767 | new = info_make(type, BGP_ROUTE_REDISTRIBUTE, instance, | |
6768 | bgp->peer_self, new_attr, bn); | |
1defdda8 | 6769 | SET_FLAG(new->flags, BGP_PATH_VALID); |
d62a17ae | 6770 | |
6771 | bgp_aggregate_increment(bgp, p, new, afi, SAFI_UNICAST); | |
18ee8310 | 6772 | bgp_path_info_add(bn, new); |
d62a17ae | 6773 | bgp_unlock_node(bn); |
6774 | bgp_process(bgp, bn, afi, SAFI_UNICAST); | |
ddb5b488 PZ |
6775 | |
6776 | if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
6777 | || (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
6778 | ||
6779 | vpn_leak_from_vrf_update(bgp_get_default(), bgp, new); | |
6780 | } | |
d62a17ae | 6781 | } |
6782 | ||
6783 | /* Unintern original. */ | |
6784 | aspath_unintern(&attr.aspath); | |
718e3744 | 6785 | } |
6786 | ||
d7c0a89a QY |
6787 | void bgp_redistribute_delete(struct bgp *bgp, struct prefix *p, uint8_t type, |
6788 | unsigned short instance) | |
718e3744 | 6789 | { |
d62a17ae | 6790 | afi_t afi; |
6791 | struct bgp_node *rn; | |
40381db7 | 6792 | struct bgp_path_info *pi; |
d62a17ae | 6793 | struct bgp_redist *red; |
718e3744 | 6794 | |
d62a17ae | 6795 | afi = family2afi(p->family); |
718e3744 | 6796 | |
d62a17ae | 6797 | red = bgp_redist_lookup(bgp, afi, type, instance); |
6798 | if (red) { | |
6799 | rn = bgp_afi_node_get(bgp->rib[afi][SAFI_UNICAST], afi, | |
6800 | SAFI_UNICAST, p, NULL); | |
6801 | ||
6f94b685 | 6802 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 | 6803 | if (pi->peer == bgp->peer_self && pi->type == type) |
d62a17ae | 6804 | break; |
6805 | ||
40381db7 | 6806 | if (pi) { |
ddb5b488 PZ |
6807 | if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF) |
6808 | || (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
6809 | ||
6810 | vpn_leak_from_vrf_withdraw(bgp_get_default(), | |
40381db7 | 6811 | bgp, pi); |
ddb5b488 | 6812 | } |
40381db7 DS |
6813 | bgp_aggregate_decrement(bgp, p, pi, afi, SAFI_UNICAST); |
6814 | bgp_path_info_delete(rn, pi); | |
d62a17ae | 6815 | bgp_process(bgp, rn, afi, SAFI_UNICAST); |
6816 | } | |
6817 | bgp_unlock_node(rn); | |
6818 | } | |
6819 | } | |
6820 | ||
6821 | /* Withdraw specified route type's route. */ | |
6822 | void bgp_redistribute_withdraw(struct bgp *bgp, afi_t afi, int type, | |
d7c0a89a | 6823 | unsigned short instance) |
d62a17ae | 6824 | { |
6825 | struct bgp_node *rn; | |
40381db7 | 6826 | struct bgp_path_info *pi; |
d62a17ae | 6827 | struct bgp_table *table; |
6828 | ||
6829 | table = bgp->rib[afi][SAFI_UNICAST]; | |
6830 | ||
6831 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { | |
6f94b685 | 6832 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 DS |
6833 | if (pi->peer == bgp->peer_self && pi->type == type |
6834 | && pi->instance == instance) | |
d62a17ae | 6835 | break; |
6836 | ||
40381db7 | 6837 | if (pi) { |
ddb5b488 PZ |
6838 | if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF) |
6839 | || (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) { | |
6840 | ||
6841 | vpn_leak_from_vrf_withdraw(bgp_get_default(), | |
40381db7 | 6842 | bgp, pi); |
ddb5b488 | 6843 | } |
40381db7 | 6844 | bgp_aggregate_decrement(bgp, &rn->p, pi, afi, |
d62a17ae | 6845 | SAFI_UNICAST); |
40381db7 | 6846 | bgp_path_info_delete(rn, pi); |
d62a17ae | 6847 | bgp_process(bgp, rn, afi, SAFI_UNICAST); |
6848 | } | |
718e3744 | 6849 | } |
718e3744 | 6850 | } |
6b0655a2 | 6851 | |
718e3744 | 6852 | /* Static function to display route. */ |
9c92b5f7 MK |
6853 | static void route_vty_out_route(struct prefix *p, struct vty *vty, |
6854 | json_object *json) | |
718e3744 | 6855 | { |
be054588 | 6856 | int len = 0; |
d62a17ae | 6857 | char buf[BUFSIZ]; |
50e05855 | 6858 | char buf2[BUFSIZ]; |
718e3744 | 6859 | |
d62a17ae | 6860 | if (p->family == AF_INET) { |
c6462ff4 | 6861 | if (!json) { |
89e5e9f0 PM |
6862 | len = vty_out( |
6863 | vty, "%s/%d", | |
6864 | inet_ntop(p->family, &p->u.prefix, buf, BUFSIZ), | |
6865 | p->prefixlen); | |
c6462ff4 MK |
6866 | } else { |
6867 | json_object_string_add(json, "prefix", | |
6868 | inet_ntop(p->family, | |
6869 | &p->u.prefix, buf, | |
6870 | BUFSIZ)); | |
6871 | json_object_int_add(json, "prefixLen", p->prefixlen); | |
37d4e0df | 6872 | prefix2str(p, buf2, PREFIX_STRLEN); |
50e05855 | 6873 | json_object_string_add(json, "network", buf2); |
c6462ff4 | 6874 | } |
d62a17ae | 6875 | } else if (p->family == AF_ETHERNET) { |
b03b8898 DS |
6876 | prefix2str(p, buf, PREFIX_STRLEN); |
6877 | len = vty_out(vty, "%s", buf); | |
6878 | } else if (p->family == AF_EVPN) { | |
57f7feb6 | 6879 | if (!json) |
60466a63 QY |
6880 | len = vty_out( |
6881 | vty, "%s", | |
6882 | bgp_evpn_route2str((struct prefix_evpn *)p, buf, | |
6883 | BUFSIZ)); | |
57f7feb6 | 6884 | else |
60466a63 | 6885 | bgp_evpn_route2json((struct prefix_evpn *)p, json); |
dba3c1d3 PG |
6886 | } else if (p->family == AF_FLOWSPEC) { |
6887 | route_vty_out_flowspec(vty, p, NULL, | |
d33fc23b PG |
6888 | json ? |
6889 | NLRI_STRING_FORMAT_JSON_SIMPLE : | |
6890 | NLRI_STRING_FORMAT_MIN, json); | |
9c92b5f7 | 6891 | } else { |
c6462ff4 | 6892 | if (!json) |
60466a63 QY |
6893 | len = vty_out( |
6894 | vty, "%s/%d", | |
6895 | inet_ntop(p->family, &p->u.prefix, buf, BUFSIZ), | |
6896 | p->prefixlen); | |
50e05855 AD |
6897 | else { |
6898 | json_object_string_add(json, "prefix", | |
6899 | inet_ntop(p->family, | |
6900 | &p->u.prefix, buf, | |
6901 | BUFSIZ)); | |
6902 | json_object_int_add(json, "prefixLen", p->prefixlen); | |
37d4e0df AD |
6903 | prefix2str(p, buf2, PREFIX_STRLEN); |
6904 | json_object_string_add(json, "network", buf2); | |
6905 | } | |
9c92b5f7 | 6906 | } |
d62a17ae | 6907 | |
9c92b5f7 MK |
6908 | if (!json) { |
6909 | len = 17 - len; | |
6910 | if (len < 1) | |
6911 | vty_out(vty, "\n%*s", 20, " "); | |
6912 | else | |
6913 | vty_out(vty, "%*s", len, " "); | |
6914 | } | |
718e3744 | 6915 | } |
6916 | ||
d62a17ae | 6917 | enum bgp_display_type { |
6918 | normal_list, | |
718e3744 | 6919 | }; |
6920 | ||
18ee8310 | 6921 | /* Print the short form route status for a bgp_path_info */ |
4b7e6066 | 6922 | static void route_vty_short_status_out(struct vty *vty, |
9b6d8fcf | 6923 | struct bgp_path_info *path, |
d62a17ae | 6924 | json_object *json_path) |
718e3744 | 6925 | { |
d62a17ae | 6926 | if (json_path) { |
b05a1c8b | 6927 | |
d62a17ae | 6928 | /* Route status display. */ |
9b6d8fcf | 6929 | if (CHECK_FLAG(path->flags, BGP_PATH_REMOVED)) |
d62a17ae | 6930 | json_object_boolean_true_add(json_path, "removed"); |
b05a1c8b | 6931 | |
9b6d8fcf | 6932 | if (CHECK_FLAG(path->flags, BGP_PATH_STALE)) |
d62a17ae | 6933 | json_object_boolean_true_add(json_path, "stale"); |
b05a1c8b | 6934 | |
9b6d8fcf | 6935 | if (path->extra && path->extra->suppress) |
d62a17ae | 6936 | json_object_boolean_true_add(json_path, "suppressed"); |
b05a1c8b | 6937 | |
9b6d8fcf DS |
6938 | if (CHECK_FLAG(path->flags, BGP_PATH_VALID) |
6939 | && !CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) | |
d62a17ae | 6940 | json_object_boolean_true_add(json_path, "valid"); |
b05a1c8b | 6941 | |
d62a17ae | 6942 | /* Selected */ |
9b6d8fcf | 6943 | if (CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) |
d62a17ae | 6944 | json_object_boolean_true_add(json_path, "history"); |
b05a1c8b | 6945 | |
9b6d8fcf | 6946 | if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED)) |
d62a17ae | 6947 | json_object_boolean_true_add(json_path, "damped"); |
b05a1c8b | 6948 | |
9b6d8fcf | 6949 | if (CHECK_FLAG(path->flags, BGP_PATH_SELECTED)) |
d62a17ae | 6950 | json_object_boolean_true_add(json_path, "bestpath"); |
b05a1c8b | 6951 | |
9b6d8fcf | 6952 | if (CHECK_FLAG(path->flags, BGP_PATH_MULTIPATH)) |
d62a17ae | 6953 | json_object_boolean_true_add(json_path, "multipath"); |
b05a1c8b | 6954 | |
d62a17ae | 6955 | /* Internal route. */ |
9b6d8fcf DS |
6956 | if ((path->peer->as) |
6957 | && (path->peer->as == path->peer->local_as)) | |
d62a17ae | 6958 | json_object_string_add(json_path, "pathFrom", |
6959 | "internal"); | |
6960 | else | |
6961 | json_object_string_add(json_path, "pathFrom", | |
6962 | "external"); | |
b05a1c8b | 6963 | |
d62a17ae | 6964 | return; |
6965 | } | |
b05a1c8b | 6966 | |
d62a17ae | 6967 | /* Route status display. */ |
9b6d8fcf | 6968 | if (CHECK_FLAG(path->flags, BGP_PATH_REMOVED)) |
d62a17ae | 6969 | vty_out(vty, "R"); |
9b6d8fcf | 6970 | else if (CHECK_FLAG(path->flags, BGP_PATH_STALE)) |
d62a17ae | 6971 | vty_out(vty, "S"); |
9b6d8fcf | 6972 | else if (path->extra && path->extra->suppress) |
d62a17ae | 6973 | vty_out(vty, "s"); |
9b6d8fcf DS |
6974 | else if (CHECK_FLAG(path->flags, BGP_PATH_VALID) |
6975 | && !CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) | |
d62a17ae | 6976 | vty_out(vty, "*"); |
6977 | else | |
6978 | vty_out(vty, " "); | |
6979 | ||
6980 | /* Selected */ | |
9b6d8fcf | 6981 | if (CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) |
d62a17ae | 6982 | vty_out(vty, "h"); |
9b6d8fcf | 6983 | else if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED)) |
d62a17ae | 6984 | vty_out(vty, "d"); |
9b6d8fcf | 6985 | else if (CHECK_FLAG(path->flags, BGP_PATH_SELECTED)) |
d62a17ae | 6986 | vty_out(vty, ">"); |
9b6d8fcf | 6987 | else if (CHECK_FLAG(path->flags, BGP_PATH_MULTIPATH)) |
d62a17ae | 6988 | vty_out(vty, "="); |
6989 | else | |
6990 | vty_out(vty, " "); | |
718e3744 | 6991 | |
d62a17ae | 6992 | /* Internal route. */ |
9b6d8fcf DS |
6993 | if (path->peer && (path->peer->as) |
6994 | && (path->peer->as == path->peer->local_as)) | |
d62a17ae | 6995 | vty_out(vty, "i"); |
6996 | else | |
6997 | vty_out(vty, " "); | |
b40d939b | 6998 | } |
6999 | ||
25b5da8d DA |
7000 | static char *bgp_nexthop_fqdn(struct peer *peer) |
7001 | { | |
7002 | if (peer->hostname && bgp_flag_check(peer->bgp, BGP_FLAG_SHOW_HOSTNAME)) | |
7003 | return peer->hostname; | |
7004 | return NULL; | |
7005 | } | |
7006 | ||
b40d939b | 7007 | /* called from terminal list command */ |
4b7e6066 | 7008 | void route_vty_out(struct vty *vty, struct prefix *p, |
9b6d8fcf | 7009 | struct bgp_path_info *path, int display, safi_t safi, |
4b7e6066 | 7010 | json_object *json_paths) |
d62a17ae | 7011 | { |
7012 | struct attr *attr; | |
7013 | json_object *json_path = NULL; | |
7014 | json_object *json_nexthops = NULL; | |
7015 | json_object *json_nexthop_global = NULL; | |
7016 | json_object *json_nexthop_ll = NULL; | |
6f214dd3 | 7017 | json_object *json_ext_community = NULL; |
9df8b37c | 7018 | char vrf_id_str[VRF_NAMSIZ] = {0}; |
1defdda8 | 7019 | bool nexthop_self = |
9b6d8fcf | 7020 | CHECK_FLAG(path->flags, BGP_PATH_ANNC_NH_SELF) ? true : false; |
9df8b37c | 7021 | bool nexthop_othervrf = false; |
43089216 | 7022 | vrf_id_t nexthop_vrfid = VRF_DEFAULT; |
4d97eea6 | 7023 | const char *nexthop_vrfname = VRF_DEFAULT_NAME; |
25b5da8d | 7024 | char *nexthop_fqdn = bgp_nexthop_fqdn(path->peer); |
d62a17ae | 7025 | |
7026 | if (json_paths) | |
7027 | json_path = json_object_new_object(); | |
7028 | ||
7029 | /* short status lead text */ | |
9b6d8fcf | 7030 | route_vty_short_status_out(vty, path, json_path); |
d62a17ae | 7031 | |
7032 | if (!json_paths) { | |
7033 | /* print prefix and mask */ | |
7034 | if (!display) | |
9c92b5f7 | 7035 | route_vty_out_route(p, vty, json_path); |
d62a17ae | 7036 | else |
7037 | vty_out(vty, "%*s", 17, " "); | |
9c92b5f7 | 7038 | } else { |
b682f6de | 7039 | route_vty_out_route(p, vty, json_path); |
d62a17ae | 7040 | } |
47fc97cc | 7041 | |
d62a17ae | 7042 | /* Print attribute */ |
9b6d8fcf | 7043 | attr = path->attr; |
445c2480 DS |
7044 | if (!attr) { |
7045 | if (json_paths) | |
7046 | json_object_array_add(json_paths, json_path); | |
7047 | else | |
7048 | vty_out(vty, "\n"); | |
d62a17ae | 7049 | |
445c2480 DS |
7050 | return; |
7051 | } | |
7052 | ||
9df8b37c PZ |
7053 | /* |
7054 | * If vrf id of nexthop is different from that of prefix, | |
7055 | * set up printable string to append | |
7056 | */ | |
9b6d8fcf | 7057 | if (path->extra && path->extra->bgp_orig) { |
9df8b37c PZ |
7058 | const char *self = ""; |
7059 | ||
7060 | if (nexthop_self) | |
7061 | self = "<"; | |
7062 | ||
7063 | nexthop_othervrf = true; | |
9b6d8fcf | 7064 | nexthop_vrfid = path->extra->bgp_orig->vrf_id; |
9df8b37c | 7065 | |
9b6d8fcf | 7066 | if (path->extra->bgp_orig->vrf_id == VRF_UNKNOWN) |
9df8b37c PZ |
7067 | snprintf(vrf_id_str, sizeof(vrf_id_str), |
7068 | "@%s%s", VRFID_NONE_STR, self); | |
7069 | else | |
7070 | snprintf(vrf_id_str, sizeof(vrf_id_str), "@%u%s", | |
9b6d8fcf | 7071 | path->extra->bgp_orig->vrf_id, self); |
9df8b37c | 7072 | |
9b6d8fcf DS |
7073 | if (path->extra->bgp_orig->inst_type |
7074 | != BGP_INSTANCE_TYPE_DEFAULT) | |
9df8b37c | 7075 | |
9b6d8fcf | 7076 | nexthop_vrfname = path->extra->bgp_orig->name; |
9df8b37c PZ |
7077 | } else { |
7078 | const char *self = ""; | |
7079 | ||
7080 | if (nexthop_self) | |
7081 | self = "<"; | |
7082 | ||
7083 | snprintf(vrf_id_str, sizeof(vrf_id_str), "%s", self); | |
7084 | } | |
7085 | ||
445c2480 DS |
7086 | /* |
7087 | * For ENCAP and EVPN routes, nexthop address family is not | |
7088 | * neccessarily the same as the prefix address family. | |
7089 | * Both SAFI_MPLS_VPN and SAFI_ENCAP use the MP nexthop field | |
7090 | * EVPN routes are also exchanged with a MP nexthop. Currently, | |
7091 | * this | |
7092 | * is only IPv4, the value will be present in either | |
7093 | * attr->nexthop or | |
7094 | * attr->mp_nexthop_global_in | |
7095 | */ | |
7096 | if ((safi == SAFI_ENCAP) || (safi == SAFI_MPLS_VPN)) { | |
7097 | char buf[BUFSIZ]; | |
7098 | char nexthop[128]; | |
7099 | int af = NEXTHOP_FAMILY(attr->mp_nexthop_len); | |
7100 | ||
7101 | switch (af) { | |
7102 | case AF_INET: | |
7103 | sprintf(nexthop, "%s", | |
a4d82a8a PZ |
7104 | inet_ntop(af, &attr->mp_nexthop_global_in, buf, |
7105 | BUFSIZ)); | |
445c2480 DS |
7106 | break; |
7107 | case AF_INET6: | |
7108 | sprintf(nexthop, "%s", | |
a4d82a8a PZ |
7109 | inet_ntop(af, &attr->mp_nexthop_global, buf, |
7110 | BUFSIZ)); | |
445c2480 DS |
7111 | break; |
7112 | default: | |
7113 | sprintf(nexthop, "?"); | |
7114 | break; | |
d62a17ae | 7115 | } |
d62a17ae | 7116 | |
445c2480 DS |
7117 | if (json_paths) { |
7118 | json_nexthop_global = json_object_new_object(); | |
7119 | ||
25b5da8d DA |
7120 | json_object_string_add( |
7121 | json_nexthop_global, "afi", | |
7122 | nexthop_fqdn ? "fqdn" | |
7123 | : (af == AF_INET) ? "ip" : "ipv6"); | |
7124 | json_object_string_add( | |
7125 | json_nexthop_global, | |
7126 | nexthop_fqdn ? "fqdn" | |
7127 | : (af == AF_INET) ? "ip" : "ipv6", | |
7128 | nexthop_fqdn ? nexthop_fqdn : nexthop); | |
445c2480 DS |
7129 | json_object_boolean_true_add(json_nexthop_global, |
7130 | "used"); | |
7131 | } else | |
25b5da8d DA |
7132 | vty_out(vty, "%s%s", |
7133 | nexthop_fqdn ? nexthop_fqdn : nexthop, | |
7134 | vrf_id_str); | |
445c2480 DS |
7135 | } else if (safi == SAFI_EVPN) { |
7136 | if (json_paths) { | |
7137 | json_nexthop_global = json_object_new_object(); | |
7138 | ||
25b5da8d DA |
7139 | json_object_string_add( |
7140 | json_nexthop_global, | |
7141 | nexthop_fqdn ? "fqdn" : "ip", | |
7142 | nexthop_fqdn ? nexthop_fqdn | |
7143 | : inet_ntoa(attr->nexthop)); | |
a4d82a8a PZ |
7144 | json_object_string_add(json_nexthop_global, "afi", |
7145 | "ipv4"); | |
445c2480 DS |
7146 | json_object_boolean_true_add(json_nexthop_global, |
7147 | "used"); | |
7148 | } else | |
25b5da8d DA |
7149 | vty_out(vty, "%-16s%s", |
7150 | nexthop_fqdn ?: inet_ntoa(attr->nexthop), | |
9df8b37c | 7151 | vrf_id_str); |
d33fc23b | 7152 | } else if (safi == SAFI_FLOWSPEC) { |
026b914a PG |
7153 | if (attr->nexthop.s_addr != 0) { |
7154 | if (json_paths) { | |
7155 | json_nexthop_global = json_object_new_object(); | |
7156 | json_object_string_add( | |
25b5da8d DA |
7157 | json_nexthop_global, |
7158 | nexthop_fqdn ? "fqdn" : "ip", | |
7159 | nexthop_fqdn | |
7160 | ? nexthop_fqdn | |
7161 | : inet_ntoa(attr->nexthop)); | |
026b914a PG |
7162 | json_object_string_add(json_nexthop_global, |
7163 | "afi", "ipv4"); | |
50e05855 AD |
7164 | json_object_boolean_true_add( |
7165 | json_nexthop_global, | |
026b914a PG |
7166 | "used"); |
7167 | } else { | |
25b5da8d DA |
7168 | vty_out(vty, "%-16s", |
7169 | nexthop_fqdn | |
7170 | ? nexthop_fqdn | |
7171 | : inet_ntoa(attr->nexthop)); | |
026b914a PG |
7172 | } |
7173 | } | |
d33fc23b | 7174 | } else if (p->family == AF_INET && !BGP_ATTR_NEXTHOP_AFI_IP6(attr)) { |
445c2480 DS |
7175 | if (json_paths) { |
7176 | json_nexthop_global = json_object_new_object(); | |
d62a17ae | 7177 | |
a4d82a8a PZ |
7178 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_EVPN)) |
7179 | json_object_string_add( | |
25b5da8d DA |
7180 | json_nexthop_global, |
7181 | nexthop_fqdn ? "fqdn" : "ip", | |
7182 | nexthop_fqdn | |
7183 | ? nexthop_fqdn | |
7184 | : inet_ntoa( | |
7185 | attr->mp_nexthop_global_in)); | |
445c2480 | 7186 | else |
a4d82a8a | 7187 | json_object_string_add( |
25b5da8d DA |
7188 | json_nexthop_global, |
7189 | nexthop_fqdn ? "fqdn" : "ip", | |
7190 | nexthop_fqdn | |
7191 | ? nexthop_fqdn | |
7192 | : inet_ntoa(attr->nexthop)); | |
445c2480 | 7193 | |
a4d82a8a PZ |
7194 | json_object_string_add(json_nexthop_global, "afi", |
7195 | "ipv4"); | |
445c2480 DS |
7196 | json_object_boolean_true_add(json_nexthop_global, |
7197 | "used"); | |
7198 | } else { | |
9df8b37c PZ |
7199 | char buf[BUFSIZ]; |
7200 | ||
d87ff2dd | 7201 | snprintf(buf, sizeof(buf), "%s%s", |
25b5da8d DA |
7202 | nexthop_fqdn ? nexthop_fqdn |
7203 | : inet_ntoa(attr->nexthop), | |
7204 | vrf_id_str); | |
9df8b37c | 7205 | vty_out(vty, "%-16s", buf); |
d62a17ae | 7206 | } |
445c2480 | 7207 | } |
b05a1c8b | 7208 | |
445c2480 | 7209 | /* IPv6 Next Hop */ |
a4d82a8a | 7210 | else if (p->family == AF_INET6 || BGP_ATTR_NEXTHOP_AFI_IP6(attr)) { |
445c2480 DS |
7211 | int len; |
7212 | char buf[BUFSIZ]; | |
d62a17ae | 7213 | |
445c2480 DS |
7214 | if (json_paths) { |
7215 | json_nexthop_global = json_object_new_object(); | |
a4d82a8a | 7216 | json_object_string_add( |
25b5da8d DA |
7217 | json_nexthop_global, |
7218 | nexthop_fqdn ? "fqdn" : "ip", | |
7219 | nexthop_fqdn | |
7220 | ? nexthop_fqdn | |
7221 | : inet_ntop(AF_INET6, | |
7222 | &attr->mp_nexthop_global, | |
7223 | buf, BUFSIZ)); | |
a4d82a8a PZ |
7224 | json_object_string_add(json_nexthop_global, "afi", |
7225 | "ipv6"); | |
7226 | json_object_string_add(json_nexthop_global, "scope", | |
7227 | "global"); | |
445c2480 DS |
7228 | |
7229 | /* We display both LL & GL if both have been | |
7230 | * received */ | |
7231 | if ((attr->mp_nexthop_len == 32) | |
9b6d8fcf | 7232 | || (path->peer->conf_if)) { |
a4d82a8a | 7233 | json_nexthop_ll = json_object_new_object(); |
d62a17ae | 7234 | json_object_string_add( |
25b5da8d DA |
7235 | json_nexthop_ll, |
7236 | nexthop_fqdn ? "fqdn" : "ip", | |
7237 | nexthop_fqdn | |
7238 | ? nexthop_fqdn | |
7239 | : inet_ntop( | |
7240 | AF_INET6, | |
7241 | &attr->mp_nexthop_local, | |
7242 | buf, BUFSIZ)); | |
a4d82a8a PZ |
7243 | json_object_string_add(json_nexthop_ll, "afi", |
7244 | "ipv6"); | |
7245 | json_object_string_add(json_nexthop_ll, "scope", | |
445c2480 | 7246 | "link-local"); |
d62a17ae | 7247 | |
a4d82a8a PZ |
7248 | if ((IPV6_ADDR_CMP(&attr->mp_nexthop_global, |
7249 | &attr->mp_nexthop_local) | |
445c2480 DS |
7250 | != 0) |
7251 | && !attr->mp_nexthop_prefer_global) | |
d62a17ae | 7252 | json_object_boolean_true_add( |
a4d82a8a | 7253 | json_nexthop_ll, "used"); |
445c2480 DS |
7254 | else |
7255 | json_object_boolean_true_add( | |
a4d82a8a | 7256 | json_nexthop_global, "used"); |
445c2480 DS |
7257 | } else |
7258 | json_object_boolean_true_add( | |
7259 | json_nexthop_global, "used"); | |
7260 | } else { | |
7261 | /* Display LL if LL/Global both in table unless | |
7262 | * prefer-global is set */ | |
7263 | if (((attr->mp_nexthop_len == 32) | |
7264 | && !attr->mp_nexthop_prefer_global) | |
9b6d8fcf DS |
7265 | || (path->peer->conf_if)) { |
7266 | if (path->peer->conf_if) { | |
a4d82a8a | 7267 | len = vty_out(vty, "%s", |
9b6d8fcf | 7268 | path->peer->conf_if); |
445c2480 DS |
7269 | len = 16 - len; /* len of IPv6 |
7270 | addr + max | |
7271 | len of def | |
7272 | ifname */ | |
7273 | ||
7274 | if (len < 1) | |
a4d82a8a | 7275 | vty_out(vty, "\n%*s", 36, " "); |
445c2480 | 7276 | else |
a4d82a8a | 7277 | vty_out(vty, "%*s", len, " "); |
d62a17ae | 7278 | } else { |
7279 | len = vty_out( | |
9df8b37c | 7280 | vty, "%s%s", |
25b5da8d DA |
7281 | nexthop_fqdn |
7282 | ? nexthop_fqdn | |
7283 | : inet_ntop( | |
7284 | AF_INET6, | |
7285 | &attr->mp_nexthop_local, | |
7286 | buf, BUFSIZ), | |
9df8b37c | 7287 | vrf_id_str); |
d62a17ae | 7288 | len = 16 - len; |
7289 | ||
7290 | if (len < 1) | |
a4d82a8a | 7291 | vty_out(vty, "\n%*s", 36, " "); |
d62a17ae | 7292 | else |
a4d82a8a | 7293 | vty_out(vty, "%*s", len, " "); |
d62a17ae | 7294 | } |
445c2480 | 7295 | } else { |
a4d82a8a | 7296 | len = vty_out( |
9df8b37c | 7297 | vty, "%s%s", |
25b5da8d DA |
7298 | nexthop_fqdn |
7299 | ? nexthop_fqdn | |
7300 | : inet_ntop( | |
7301 | AF_INET6, | |
7302 | &attr->mp_nexthop_global, | |
7303 | buf, BUFSIZ), | |
7304 | vrf_id_str); | |
445c2480 DS |
7305 | len = 16 - len; |
7306 | ||
7307 | if (len < 1) | |
7308 | vty_out(vty, "\n%*s", 36, " "); | |
7309 | else | |
7310 | vty_out(vty, "%*s", len, " "); | |
d62a17ae | 7311 | } |
7312 | } | |
445c2480 | 7313 | } |
718e3744 | 7314 | |
445c2480 DS |
7315 | /* MED/Metric */ |
7316 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)) | |
50e05855 AD |
7317 | if (json_paths) { |
7318 | ||
7319 | /* | |
7320 | * Adding "metric" field to match with corresponding | |
7321 | * CLI. "med" will be deprecated in future. | |
7322 | */ | |
a4d82a8a | 7323 | json_object_int_add(json_path, "med", attr->med); |
50e05855 AD |
7324 | json_object_int_add(json_path, "metric", attr->med); |
7325 | } else | |
445c2480 DS |
7326 | vty_out(vty, "%10u", attr->med); |
7327 | else if (!json_paths) | |
7328 | vty_out(vty, " "); | |
d62a17ae | 7329 | |
445c2480 DS |
7330 | /* Local Pref */ |
7331 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)) | |
50e05855 AD |
7332 | if (json_paths) { |
7333 | ||
7334 | /* | |
7335 | * Adding "locPrf" field to match with corresponding | |
7336 | * CLI. "localPref" will be deprecated in future. | |
7337 | */ | |
445c2480 DS |
7338 | json_object_int_add(json_path, "localpref", |
7339 | attr->local_pref); | |
50e05855 AD |
7340 | json_object_int_add(json_path, "locPrf", |
7341 | attr->local_pref); | |
7342 | } else | |
445c2480 DS |
7343 | vty_out(vty, "%7u", attr->local_pref); |
7344 | else if (!json_paths) | |
7345 | vty_out(vty, " "); | |
d62a17ae | 7346 | |
445c2480 DS |
7347 | if (json_paths) |
7348 | json_object_int_add(json_path, "weight", attr->weight); | |
7349 | else | |
7350 | vty_out(vty, "%7u ", attr->weight); | |
47fc97cc | 7351 | |
445c2480 DS |
7352 | if (json_paths) { |
7353 | char buf[BUFSIZ]; | |
a4d82a8a PZ |
7354 | json_object_string_add( |
7355 | json_path, "peerId", | |
9b6d8fcf | 7356 | sockunion2str(&path->peer->su, buf, SU_ADDRSTRLEN)); |
445c2480 | 7357 | } |
b05a1c8b | 7358 | |
445c2480 DS |
7359 | /* Print aspath */ |
7360 | if (attr->aspath) { | |
50e05855 AD |
7361 | if (json_paths) { |
7362 | ||
7363 | /* | |
7364 | * Adding "path" field to match with corresponding | |
7365 | * CLI. "aspath" will be deprecated in future. | |
7366 | */ | |
445c2480 DS |
7367 | json_object_string_add(json_path, "aspath", |
7368 | attr->aspath->str); | |
50e05855 AD |
7369 | json_object_string_add(json_path, "path", |
7370 | attr->aspath->str); | |
7371 | } else | |
445c2480 | 7372 | aspath_print_vty(vty, "%s", attr->aspath, " "); |
d62a17ae | 7373 | } |
f1aa5d8a | 7374 | |
445c2480 DS |
7375 | /* Print origin */ |
7376 | if (json_paths) | |
a4d82a8a PZ |
7377 | json_object_string_add(json_path, "origin", |
7378 | bgp_origin_long_str[attr->origin]); | |
445c2480 DS |
7379 | else |
7380 | vty_out(vty, "%s", bgp_origin_str[attr->origin]); | |
7381 | ||
9df8b37c | 7382 | if (json_paths) { |
6f214dd3 CS |
7383 | if (safi == SAFI_EVPN && |
7384 | attr->flag & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)) { | |
7385 | json_ext_community = json_object_new_object(); | |
7386 | json_object_string_add(json_ext_community, | |
7387 | "string", | |
7388 | attr->ecommunity->str); | |
7389 | json_object_object_add(json_path, | |
7390 | "extendedCommunity", | |
7391 | json_ext_community); | |
7392 | } | |
7393 | ||
9df8b37c PZ |
7394 | if (nexthop_self) |
7395 | json_object_boolean_true_add(json_path, | |
7396 | "announceNexthopSelf"); | |
7397 | if (nexthop_othervrf) { | |
7398 | json_object_string_add(json_path, "nhVrfName", | |
7399 | nexthop_vrfname); | |
7400 | ||
7401 | json_object_int_add(json_path, "nhVrfId", | |
7402 | ((nexthop_vrfid == VRF_UNKNOWN) | |
7403 | ? -1 | |
7404 | : (int)nexthop_vrfid)); | |
7405 | } | |
7406 | } | |
7407 | ||
d62a17ae | 7408 | if (json_paths) { |
7409 | if (json_nexthop_global || json_nexthop_ll) { | |
7410 | json_nexthops = json_object_new_array(); | |
f1aa5d8a | 7411 | |
d62a17ae | 7412 | if (json_nexthop_global) |
7413 | json_object_array_add(json_nexthops, | |
7414 | json_nexthop_global); | |
f1aa5d8a | 7415 | |
d62a17ae | 7416 | if (json_nexthop_ll) |
7417 | json_object_array_add(json_nexthops, | |
7418 | json_nexthop_ll); | |
f1aa5d8a | 7419 | |
d62a17ae | 7420 | json_object_object_add(json_path, "nexthops", |
7421 | json_nexthops); | |
7422 | } | |
7423 | ||
7424 | json_object_array_add(json_paths, json_path); | |
7425 | } else { | |
7426 | vty_out(vty, "\n"); | |
6f214dd3 CS |
7427 | |
7428 | if (safi == SAFI_EVPN && | |
7429 | attr->flag & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)) { | |
7430 | vty_out(vty, "%*s", 20, " "); | |
7431 | vty_out(vty, "%s\n", attr->ecommunity->str); | |
7432 | } | |
7433 | ||
65efcfce | 7434 | #if ENABLE_BGP_VNC |
d62a17ae | 7435 | /* prints an additional line, indented, with VNC info, if |
7436 | * present */ | |
7437 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)) | |
9b6d8fcf | 7438 | rfapi_vty_out_vncinfo(vty, p, path, safi); |
65efcfce | 7439 | #endif |
d62a17ae | 7440 | } |
7441 | } | |
718e3744 | 7442 | |
7443 | /* called from terminal list command */ | |
d62a17ae | 7444 | void route_vty_out_tmp(struct vty *vty, struct prefix *p, struct attr *attr, |
9f049418 | 7445 | safi_t safi, bool use_json, json_object *json_ar) |
d62a17ae | 7446 | { |
7447 | json_object *json_status = NULL; | |
7448 | json_object *json_net = NULL; | |
7449 | char buff[BUFSIZ]; | |
50e05855 | 7450 | char buf2[BUFSIZ]; |
d62a17ae | 7451 | /* Route status display. */ |
7452 | if (use_json) { | |
7453 | json_status = json_object_new_object(); | |
7454 | json_net = json_object_new_object(); | |
7455 | } else { | |
7456 | vty_out(vty, "*"); | |
7457 | vty_out(vty, ">"); | |
7458 | vty_out(vty, " "); | |
7459 | } | |
718e3744 | 7460 | |
d62a17ae | 7461 | /* print prefix and mask */ |
50e05855 | 7462 | if (use_json) { |
d62a17ae | 7463 | json_object_string_add( |
7464 | json_net, "addrPrefix", | |
7465 | inet_ntop(p->family, &p->u.prefix, buff, BUFSIZ)); | |
50e05855 | 7466 | json_object_int_add(json_net, "prefixLen", p->prefixlen); |
37d4e0df | 7467 | prefix2str(p, buf2, PREFIX_STRLEN); |
50e05855 AD |
7468 | json_object_string_add(json_net, "network", buf2); |
7469 | } else | |
9c92b5f7 | 7470 | route_vty_out_route(p, vty, NULL); |
d62a17ae | 7471 | |
7472 | /* Print attribute */ | |
7473 | if (attr) { | |
7474 | if (use_json) { | |
7475 | if (p->family == AF_INET | |
7476 | && (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
7477 | || safi == SAFI_EVPN | |
7478 | || !BGP_ATTR_NEXTHOP_AFI_IP6(attr))) { | |
7479 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
7480 | || safi == SAFI_EVPN) | |
7481 | json_object_string_add( | |
7482 | json_net, "nextHop", | |
7483 | inet_ntoa( | |
7484 | attr->mp_nexthop_global_in)); | |
7485 | else | |
7486 | json_object_string_add( | |
7487 | json_net, "nextHop", | |
7488 | inet_ntoa(attr->nexthop)); | |
7489 | } else if (p->family == AF_INET6 | |
7490 | || BGP_ATTR_NEXTHOP_AFI_IP6(attr)) { | |
7491 | char buf[BUFSIZ]; | |
7492 | ||
7493 | json_object_string_add( | |
aa0a10fc | 7494 | json_net, "nextHopGlobal", |
d62a17ae | 7495 | inet_ntop(AF_INET6, |
7496 | &attr->mp_nexthop_global, buf, | |
7497 | BUFSIZ)); | |
7498 | } | |
7499 | ||
7500 | if (attr->flag | |
7501 | & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)) | |
7502 | json_object_int_add(json_net, "metric", | |
7503 | attr->med); | |
7504 | ||
50e05855 AD |
7505 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)) { |
7506 | ||
7507 | /* | |
7508 | * Adding "locPrf" field to match with | |
7509 | * corresponding CLI. "localPref" will be | |
7510 | * deprecated in future. | |
7511 | */ | |
d62a17ae | 7512 | json_object_int_add(json_net, "localPref", |
7513 | attr->local_pref); | |
50e05855 AD |
7514 | json_object_int_add(json_net, "locPrf", |
7515 | attr->local_pref); | |
7516 | } | |
d62a17ae | 7517 | |
7518 | json_object_int_add(json_net, "weight", attr->weight); | |
7519 | ||
7520 | /* Print aspath */ | |
50e05855 AD |
7521 | if (attr->aspath) { |
7522 | ||
7523 | /* | |
7524 | * Adding "path" field to match with | |
7525 | * corresponding CLI. "localPref" will be | |
7526 | * deprecated in future. | |
7527 | */ | |
d62a17ae | 7528 | json_object_string_add(json_net, "asPath", |
7529 | attr->aspath->str); | |
50e05855 AD |
7530 | json_object_string_add(json_net, "path", |
7531 | attr->aspath->str); | |
7532 | } | |
d62a17ae | 7533 | |
7534 | /* Print origin */ | |
7535 | json_object_string_add(json_net, "bgpOriginCode", | |
7536 | bgp_origin_str[attr->origin]); | |
7537 | } else { | |
7538 | if (p->family == AF_INET | |
7539 | && (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
7540 | || safi == SAFI_EVPN | |
7541 | || !BGP_ATTR_NEXTHOP_AFI_IP6(attr))) { | |
7542 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
7543 | || safi == SAFI_EVPN) | |
7544 | vty_out(vty, "%-16s", | |
7545 | inet_ntoa( | |
7546 | attr->mp_nexthop_global_in)); | |
7547 | else | |
7548 | vty_out(vty, "%-16s", | |
7549 | inet_ntoa(attr->nexthop)); | |
7550 | } else if (p->family == AF_INET6 | |
7551 | || BGP_ATTR_NEXTHOP_AFI_IP6(attr)) { | |
7552 | int len; | |
7553 | char buf[BUFSIZ]; | |
7554 | ||
7555 | len = vty_out( | |
7556 | vty, "%s", | |
7557 | inet_ntop(AF_INET6, | |
7558 | &attr->mp_nexthop_global, buf, | |
7559 | BUFSIZ)); | |
7560 | len = 16 - len; | |
7561 | if (len < 1) | |
7562 | vty_out(vty, "\n%*s", 36, " "); | |
7563 | else | |
7564 | vty_out(vty, "%*s", len, " "); | |
7565 | } | |
7566 | if (attr->flag | |
7567 | & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)) | |
7568 | vty_out(vty, "%10u", attr->med); | |
7569 | else | |
7570 | vty_out(vty, " "); | |
718e3744 | 7571 | |
d62a17ae | 7572 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)) |
7573 | vty_out(vty, "%7u", attr->local_pref); | |
7574 | else | |
7575 | vty_out(vty, " "); | |
7576 | ||
7577 | vty_out(vty, "%7u ", attr->weight); | |
7578 | ||
7579 | /* Print aspath */ | |
7580 | if (attr->aspath) | |
7581 | aspath_print_vty(vty, "%s", attr->aspath, " "); | |
7582 | ||
7583 | /* Print origin */ | |
7584 | vty_out(vty, "%s", bgp_origin_str[attr->origin]); | |
7585 | } | |
7586 | } | |
7587 | if (use_json) { | |
7588 | json_object_boolean_true_add(json_status, "*"); | |
7589 | json_object_boolean_true_add(json_status, ">"); | |
7590 | json_object_object_add(json_net, "appliedStatusSymbols", | |
7591 | json_status); | |
7592 | char buf_cut[BUFSIZ]; | |
1608ff77 SP |
7593 | |
7594 | prefix2str(p, buf_cut, PREFIX_STRLEN); | |
7595 | json_object_object_add(json_ar, buf_cut, json_net); | |
d62a17ae | 7596 | } else |
7597 | vty_out(vty, "\n"); | |
7598 | } | |
7599 | ||
7600 | void route_vty_out_tag(struct vty *vty, struct prefix *p, | |
9b6d8fcf | 7601 | struct bgp_path_info *path, int display, safi_t safi, |
d62a17ae | 7602 | json_object *json) |
7603 | { | |
7604 | json_object *json_out = NULL; | |
7605 | struct attr *attr; | |
7606 | mpls_label_t label = MPLS_INVALID_LABEL; | |
7607 | ||
9b6d8fcf | 7608 | if (!path->extra) |
d62a17ae | 7609 | return; |
7610 | ||
7611 | if (json) | |
7612 | json_out = json_object_new_object(); | |
7613 | ||
7614 | /* short status lead text */ | |
9b6d8fcf | 7615 | route_vty_short_status_out(vty, path, json_out); |
d62a17ae | 7616 | |
7617 | /* print prefix and mask */ | |
7618 | if (json == NULL) { | |
7619 | if (!display) | |
9c92b5f7 | 7620 | route_vty_out_route(p, vty, NULL); |
d62a17ae | 7621 | else |
7622 | vty_out(vty, "%*s", 17, " "); | |
7623 | } | |
7624 | ||
7625 | /* Print attribute */ | |
9b6d8fcf | 7626 | attr = path->attr; |
d62a17ae | 7627 | if (attr) { |
7628 | if (((p->family == AF_INET) | |
7629 | && ((safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP))) | |
a4d82a8a | 7630 | || (safi == SAFI_EVPN && !BGP_ATTR_NEXTHOP_AFI_IP6(attr)) |
d62a17ae | 7631 | || (!BGP_ATTR_NEXTHOP_AFI_IP6(attr))) { |
7632 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
7633 | || safi == SAFI_EVPN) { | |
7634 | if (json) | |
7635 | json_object_string_add( | |
7636 | json_out, "mpNexthopGlobalIn", | |
7637 | inet_ntoa( | |
7638 | attr->mp_nexthop_global_in)); | |
7639 | else | |
7640 | vty_out(vty, "%-16s", | |
7641 | inet_ntoa( | |
7642 | attr->mp_nexthop_global_in)); | |
7643 | } else { | |
7644 | if (json) | |
7645 | json_object_string_add( | |
7646 | json_out, "nexthop", | |
7647 | inet_ntoa(attr->nexthop)); | |
7648 | else | |
7649 | vty_out(vty, "%-16s", | |
7650 | inet_ntoa(attr->nexthop)); | |
7651 | } | |
7652 | } else if (((p->family == AF_INET6) | |
7653 | && ((safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP))) | |
b03b8898 | 7654 | || (safi == SAFI_EVPN |
d62a17ae | 7655 | && BGP_ATTR_NEXTHOP_AFI_IP6(attr)) |
7656 | || (BGP_ATTR_NEXTHOP_AFI_IP6(attr))) { | |
ff44f570 | 7657 | char buf_a[512]; |
d62a17ae | 7658 | if (attr->mp_nexthop_len |
7659 | == BGP_ATTR_NHLEN_IPV6_GLOBAL) { | |
7660 | if (json) | |
7661 | json_object_string_add( | |
7662 | json_out, "mpNexthopGlobalIn", | |
7663 | inet_ntop( | |
7664 | AF_INET6, | |
7665 | &attr->mp_nexthop_global, | |
11f9b450 | 7666 | buf_a, sizeof(buf_a))); |
d62a17ae | 7667 | else |
7668 | vty_out(vty, "%s", | |
7669 | inet_ntop( | |
7670 | AF_INET6, | |
7671 | &attr->mp_nexthop_global, | |
11f9b450 | 7672 | buf_a, sizeof(buf_a))); |
d62a17ae | 7673 | } else if (attr->mp_nexthop_len |
7674 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) { | |
899e4095 DL |
7675 | snprintfrr(buf_a, sizeof(buf_a), "%pI6(%pI6)", |
7676 | &attr->mp_nexthop_global, | |
7677 | &attr->mp_nexthop_local); | |
7678 | if (json) | |
d62a17ae | 7679 | json_object_string_add( |
7680 | json_out, | |
899e4095 DL |
7681 | "mpNexthopGlobalLocal", buf_a); |
7682 | else | |
7683 | vty_out(vty, "%s", buf_a); | |
d62a17ae | 7684 | } |
7685 | } | |
7686 | } | |
7687 | ||
9b6d8fcf | 7688 | label = decode_label(&path->extra->label[0]); |
d62a17ae | 7689 | |
7690 | if (bgp_is_valid_label(&label)) { | |
7691 | if (json) { | |
7692 | json_object_int_add(json_out, "notag", label); | |
7693 | json_object_array_add(json, json_out); | |
7694 | } else { | |
7695 | vty_out(vty, "notag/%d", label); | |
7696 | vty_out(vty, "\n"); | |
7697 | } | |
7698 | } | |
7699 | } | |
718e3744 | 7700 | |
d62a17ae | 7701 | void route_vty_out_overlay(struct vty *vty, struct prefix *p, |
9b6d8fcf | 7702 | struct bgp_path_info *path, int display, |
d62a17ae | 7703 | json_object *json_paths) |
718e3744 | 7704 | { |
d62a17ae | 7705 | struct attr *attr; |
14f51eba | 7706 | char buf[BUFSIZ] = {0}; |
d62a17ae | 7707 | json_object *json_path = NULL; |
14f51eba LK |
7708 | json_object *json_nexthop = NULL; |
7709 | json_object *json_overlay = NULL; | |
856ca177 | 7710 | |
9b6d8fcf | 7711 | if (!path->extra) |
d62a17ae | 7712 | return; |
718e3744 | 7713 | |
14f51eba LK |
7714 | if (json_paths) { |
7715 | json_path = json_object_new_object(); | |
7716 | json_overlay = json_object_new_object(); | |
7717 | json_nexthop = json_object_new_object(); | |
7718 | } | |
7719 | ||
d62a17ae | 7720 | /* short status lead text */ |
9b6d8fcf | 7721 | route_vty_short_status_out(vty, path, json_path); |
856ca177 | 7722 | |
d62a17ae | 7723 | /* print prefix and mask */ |
7724 | if (!display) | |
14f51eba | 7725 | route_vty_out_route(p, vty, json_path); |
d62a17ae | 7726 | else |
7727 | vty_out(vty, "%*s", 17, " "); | |
7728 | ||
7729 | /* Print attribute */ | |
9b6d8fcf | 7730 | attr = path->attr; |
d62a17ae | 7731 | if (attr) { |
7732 | char buf1[BUFSIZ]; | |
7733 | int af = NEXTHOP_FAMILY(attr->mp_nexthop_len); | |
7734 | ||
7735 | switch (af) { | |
7736 | case AF_INET: | |
14f51eba LK |
7737 | inet_ntop(af, &attr->mp_nexthop_global_in, buf, BUFSIZ); |
7738 | if (!json_path) { | |
7739 | vty_out(vty, "%-16s", buf); | |
7740 | } else { | |
7741 | json_object_string_add(json_nexthop, "ip", buf); | |
7742 | ||
7743 | json_object_string_add(json_nexthop, "afi", | |
7744 | "ipv4"); | |
7745 | ||
7746 | json_object_object_add(json_path, "nexthop", | |
7747 | json_nexthop); | |
7748 | } | |
d62a17ae | 7749 | break; |
7750 | case AF_INET6: | |
14f51eba LK |
7751 | inet_ntop(af, &attr->mp_nexthop_global, buf, BUFSIZ); |
7752 | inet_ntop(af, &attr->mp_nexthop_local, buf1, BUFSIZ); | |
7753 | if (!json_path) { | |
7754 | vty_out(vty, "%s(%s)", buf, buf1); | |
7755 | } else { | |
7756 | json_object_string_add(json_nexthop, | |
7757 | "ipv6Global", buf); | |
7758 | ||
7759 | json_object_string_add(json_nexthop, | |
7760 | "ipv6LinkLocal", buf1); | |
7761 | ||
7762 | json_object_string_add(json_nexthop, "afi", | |
7763 | "ipv6"); | |
7764 | ||
7765 | json_object_object_add(json_path, "nexthop", | |
7766 | json_nexthop); | |
7767 | } | |
d62a17ae | 7768 | break; |
7769 | default: | |
14f51eba LK |
7770 | if (!json_path) { |
7771 | vty_out(vty, "?"); | |
7772 | } else { | |
7773 | json_object_string_add(json_nexthop, "Error", | |
7774 | "Unsupported address-family"); | |
7775 | } | |
d62a17ae | 7776 | } |
988258b4 QY |
7777 | |
7778 | char *str = esi2str(&(attr->evpn_overlay.eth_s_id)); | |
7779 | ||
14f51eba LK |
7780 | if (!json_path) |
7781 | vty_out(vty, "%s", str); | |
7782 | else | |
7783 | json_object_string_add(json_overlay, "esi", str); | |
25b5da8d | 7784 | |
988258b4 QY |
7785 | XFREE(MTYPE_TMP, str); |
7786 | ||
3714a385 | 7787 | if (is_evpn_prefix_ipaddr_v4((struct prefix_evpn *)p)) { |
14f51eba LK |
7788 | inet_ntop(AF_INET, &(attr->evpn_overlay.gw_ip.ipv4), |
7789 | buf, BUFSIZ); | |
3714a385 | 7790 | } else if (is_evpn_prefix_ipaddr_v6((struct prefix_evpn *)p)) { |
14f51eba LK |
7791 | inet_ntop(AF_INET6, &(attr->evpn_overlay.gw_ip.ipv6), |
7792 | buf, BUFSIZ); | |
988258b4 | 7793 | } |
14f51eba LK |
7794 | |
7795 | if (!json_path) | |
7796 | vty_out(vty, "/%s", buf); | |
7797 | else | |
7798 | json_object_string_add(json_overlay, "gw", buf); | |
7799 | ||
988258b4 QY |
7800 | if (attr->ecommunity) { |
7801 | char *mac = NULL; | |
7802 | struct ecommunity_val *routermac = ecommunity_lookup( | |
7803 | attr->ecommunity, ECOMMUNITY_ENCODE_EVPN, | |
7804 | ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC); | |
7805 | if (routermac) | |
7806 | mac = ecom_mac2str((char *)routermac->val); | |
7807 | if (mac) { | |
14f51eba LK |
7808 | if (!json_path) { |
7809 | vty_out(vty, "/%s", (char *)mac); | |
7810 | } else { | |
7811 | json_object_string_add(json_overlay, | |
7812 | "rmac", mac); | |
7813 | } | |
988258b4 QY |
7814 | XFREE(MTYPE_TMP, mac); |
7815 | } | |
7816 | } | |
718e3744 | 7817 | |
14f51eba LK |
7818 | if (!json_path) { |
7819 | vty_out(vty, "\n"); | |
7820 | } else { | |
7821 | json_object_object_add(json_path, "overlay", | |
7822 | json_overlay); | |
7823 | ||
7824 | json_object_array_add(json_paths, json_path); | |
7825 | } | |
7826 | } | |
d62a17ae | 7827 | } |
718e3744 | 7828 | |
d62a17ae | 7829 | /* dampening route */ |
7830 | static void damp_route_vty_out(struct vty *vty, struct prefix *p, | |
9b6d8fcf | 7831 | struct bgp_path_info *path, int display, |
4b7e6066 | 7832 | safi_t safi, bool use_json, json_object *json) |
d62a17ae | 7833 | { |
7834 | struct attr *attr; | |
7835 | int len; | |
7836 | char timebuf[BGP_UPTIME_LEN]; | |
7837 | ||
7838 | /* short status lead text */ | |
9b6d8fcf | 7839 | route_vty_short_status_out(vty, path, json); |
d62a17ae | 7840 | |
7841 | /* print prefix and mask */ | |
7842 | if (!use_json) { | |
7843 | if (!display) | |
9c92b5f7 | 7844 | route_vty_out_route(p, vty, NULL); |
d62a17ae | 7845 | else |
7846 | vty_out(vty, "%*s", 17, " "); | |
7847 | } | |
7848 | ||
9b6d8fcf | 7849 | len = vty_out(vty, "%s", path->peer->host); |
d62a17ae | 7850 | len = 17 - len; |
7851 | if (len < 1) { | |
7852 | if (!use_json) | |
7853 | vty_out(vty, "\n%*s", 34, " "); | |
7854 | } else { | |
7855 | if (use_json) | |
7856 | json_object_int_add(json, "peerHost", len); | |
7857 | else | |
7858 | vty_out(vty, "%*s", len, " "); | |
7859 | } | |
7860 | ||
7861 | if (use_json) | |
9b6d8fcf | 7862 | bgp_damp_reuse_time_vty(vty, path, timebuf, BGP_UPTIME_LEN, |
d62a17ae | 7863 | use_json, json); |
7864 | else | |
9b6d8fcf DS |
7865 | vty_out(vty, "%s ", |
7866 | bgp_damp_reuse_time_vty(vty, path, timebuf, | |
7867 | BGP_UPTIME_LEN, use_json, | |
7868 | json)); | |
d62a17ae | 7869 | |
7870 | /* Print attribute */ | |
9b6d8fcf | 7871 | attr = path->attr; |
d62a17ae | 7872 | if (attr) { |
7873 | /* Print aspath */ | |
7874 | if (attr->aspath) { | |
7875 | if (use_json) | |
7876 | json_object_string_add(json, "asPath", | |
7877 | attr->aspath->str); | |
7878 | else | |
7879 | aspath_print_vty(vty, "%s", attr->aspath, " "); | |
7880 | } | |
7881 | ||
7882 | /* Print origin */ | |
7883 | if (use_json) | |
7884 | json_object_string_add(json, "origin", | |
7885 | bgp_origin_str[attr->origin]); | |
7886 | else | |
7887 | vty_out(vty, "%s", bgp_origin_str[attr->origin]); | |
7888 | } | |
7889 | if (!use_json) | |
7890 | vty_out(vty, "\n"); | |
7891 | } | |
718e3744 | 7892 | |
d62a17ae | 7893 | /* flap route */ |
7894 | static void flap_route_vty_out(struct vty *vty, struct prefix *p, | |
9b6d8fcf | 7895 | struct bgp_path_info *path, int display, |
4b7e6066 | 7896 | safi_t safi, bool use_json, json_object *json) |
784d3a42 | 7897 | { |
d62a17ae | 7898 | struct attr *attr; |
7899 | struct bgp_damp_info *bdi; | |
7900 | char timebuf[BGP_UPTIME_LEN]; | |
7901 | int len; | |
784d3a42 | 7902 | |
9b6d8fcf | 7903 | if (!path->extra) |
d62a17ae | 7904 | return; |
784d3a42 | 7905 | |
9b6d8fcf | 7906 | bdi = path->extra->damp_info; |
784d3a42 | 7907 | |
d62a17ae | 7908 | /* short status lead text */ |
9b6d8fcf | 7909 | route_vty_short_status_out(vty, path, json); |
784d3a42 | 7910 | |
d62a17ae | 7911 | /* print prefix and mask */ |
7912 | if (!use_json) { | |
7913 | if (!display) | |
9c92b5f7 | 7914 | route_vty_out_route(p, vty, NULL); |
d62a17ae | 7915 | else |
7916 | vty_out(vty, "%*s", 17, " "); | |
7917 | } | |
784d3a42 | 7918 | |
9b6d8fcf | 7919 | len = vty_out(vty, "%s", path->peer->host); |
d62a17ae | 7920 | len = 16 - len; |
7921 | if (len < 1) { | |
7922 | if (!use_json) | |
7923 | vty_out(vty, "\n%*s", 33, " "); | |
7924 | } else { | |
7925 | if (use_json) | |
7926 | json_object_int_add(json, "peerHost", len); | |
7927 | else | |
7928 | vty_out(vty, "%*s", len, " "); | |
7929 | } | |
784d3a42 | 7930 | |
d62a17ae | 7931 | len = vty_out(vty, "%d", bdi->flap); |
7932 | len = 5 - len; | |
7933 | if (len < 1) { | |
7934 | if (!use_json) | |
7935 | vty_out(vty, " "); | |
7936 | } else { | |
7937 | if (use_json) | |
7938 | json_object_int_add(json, "bdiFlap", len); | |
7939 | else | |
7940 | vty_out(vty, "%*s", len, " "); | |
7941 | } | |
7942 | ||
7943 | if (use_json) | |
7944 | peer_uptime(bdi->start_time, timebuf, BGP_UPTIME_LEN, use_json, | |
7945 | json); | |
7946 | else | |
996c9314 LB |
7947 | vty_out(vty, "%s ", peer_uptime(bdi->start_time, timebuf, |
7948 | BGP_UPTIME_LEN, 0, NULL)); | |
d62a17ae | 7949 | |
9b6d8fcf DS |
7950 | if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED) |
7951 | && !CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) { | |
d62a17ae | 7952 | if (use_json) |
9b6d8fcf | 7953 | bgp_damp_reuse_time_vty(vty, path, timebuf, |
d62a17ae | 7954 | BGP_UPTIME_LEN, use_json, json); |
7955 | else | |
7956 | vty_out(vty, "%s ", | |
9b6d8fcf | 7957 | bgp_damp_reuse_time_vty(vty, path, timebuf, |
d62a17ae | 7958 | BGP_UPTIME_LEN, |
7959 | use_json, json)); | |
7960 | } else { | |
7961 | if (!use_json) | |
7962 | vty_out(vty, "%*s ", 8, " "); | |
7963 | } | |
7964 | ||
7965 | /* Print attribute */ | |
9b6d8fcf | 7966 | attr = path->attr; |
d62a17ae | 7967 | if (attr) { |
7968 | /* Print aspath */ | |
7969 | if (attr->aspath) { | |
7970 | if (use_json) | |
7971 | json_object_string_add(json, "asPath", | |
7972 | attr->aspath->str); | |
7973 | else | |
7974 | aspath_print_vty(vty, "%s", attr->aspath, " "); | |
7975 | } | |
7976 | ||
7977 | /* Print origin */ | |
7978 | if (use_json) | |
7979 | json_object_string_add(json, "origin", | |
7980 | bgp_origin_str[attr->origin]); | |
7981 | else | |
7982 | vty_out(vty, "%s", bgp_origin_str[attr->origin]); | |
7983 | } | |
7984 | if (!use_json) | |
7985 | vty_out(vty, "\n"); | |
7986 | } | |
7987 | ||
7988 | static void route_vty_out_advertised_to(struct vty *vty, struct peer *peer, | |
7989 | int *first, const char *header, | |
7990 | json_object *json_adv_to) | |
7991 | { | |
7992 | char buf1[INET6_ADDRSTRLEN]; | |
7993 | json_object *json_peer = NULL; | |
7994 | ||
7995 | if (json_adv_to) { | |
7996 | /* 'advertised-to' is a dictionary of peers we have advertised | |
7997 | * this | |
7998 | * prefix too. The key is the peer's IP or swpX, the value is | |
7999 | * the | |
8000 | * hostname if we know it and "" if not. | |
8001 | */ | |
8002 | json_peer = json_object_new_object(); | |
8003 | ||
8004 | if (peer->hostname) | |
8005 | json_object_string_add(json_peer, "hostname", | |
8006 | peer->hostname); | |
8007 | ||
8008 | if (peer->conf_if) | |
8009 | json_object_object_add(json_adv_to, peer->conf_if, | |
8010 | json_peer); | |
8011 | else | |
8012 | json_object_object_add( | |
8013 | json_adv_to, | |
8014 | sockunion2str(&peer->su, buf1, SU_ADDRSTRLEN), | |
8015 | json_peer); | |
8016 | } else { | |
8017 | if (*first) { | |
8018 | vty_out(vty, "%s", header); | |
8019 | *first = 0; | |
8020 | } | |
8021 | ||
8022 | if (peer->hostname | |
8023 | && bgp_flag_check(peer->bgp, BGP_FLAG_SHOW_HOSTNAME)) { | |
8024 | if (peer->conf_if) | |
8025 | vty_out(vty, " %s(%s)", peer->hostname, | |
8026 | peer->conf_if); | |
8027 | else | |
8028 | vty_out(vty, " %s(%s)", peer->hostname, | |
8029 | sockunion2str(&peer->su, buf1, | |
8030 | SU_ADDRSTRLEN)); | |
8031 | } else { | |
8032 | if (peer->conf_if) | |
8033 | vty_out(vty, " %s", peer->conf_if); | |
8034 | else | |
8035 | vty_out(vty, " %s", | |
8036 | sockunion2str(&peer->su, buf1, | |
8037 | SU_ADDRSTRLEN)); | |
8038 | } | |
8039 | } | |
784d3a42 PG |
8040 | } |
8041 | ||
dcc68b5e MS |
8042 | static void route_vty_out_tx_ids(struct vty *vty, |
8043 | struct bgp_addpath_info_data *d) | |
8044 | { | |
8045 | int i; | |
8046 | ||
8047 | for (i = 0; i < BGP_ADDPATH_MAX; i++) { | |
8048 | vty_out(vty, "TX-%s %u%s", bgp_addpath_names(i)->human_name, | |
8049 | d->addpath_tx_id[i], | |
8050 | i < BGP_ADDPATH_MAX - 1 ? " " : "\n"); | |
8051 | } | |
8052 | } | |
8053 | ||
0dc8ee70 DS |
8054 | static const char *bgp_path_selection_reason2str( |
8055 | enum bgp_path_selection_reason reason) | |
8056 | { | |
8057 | switch (reason) { | |
8058 | case bgp_path_selection_none: | |
8059 | return "Nothing to Select"; | |
8060 | break; | |
8061 | case bgp_path_selection_first: | |
8062 | return "First path received"; | |
8063 | break; | |
8064 | case bgp_path_selection_evpn_sticky_mac: | |
8065 | return "EVPN Sticky Mac"; | |
8066 | break; | |
8067 | case bgp_path_selection_evpn_seq: | |
8068 | return "EVPN sequence number"; | |
8069 | break; | |
8070 | case bgp_path_selection_evpn_lower_ip: | |
8071 | return "EVPN lower IP"; | |
8072 | break; | |
8073 | case bgp_path_selection_weight: | |
8074 | return "Weight"; | |
8075 | break; | |
8076 | case bgp_path_selection_local_pref: | |
8077 | return "Local Pref"; | |
8078 | break; | |
8079 | case bgp_path_selection_local_route: | |
8080 | return "Local Route"; | |
8081 | break; | |
8082 | case bgp_path_selection_confed_as_path: | |
8083 | return "Confederation based AS Path"; | |
8084 | break; | |
8085 | case bgp_path_selection_as_path: | |
8086 | return "AS Path"; | |
8087 | break; | |
8088 | case bgp_path_selection_origin: | |
8089 | return "Origin"; | |
8090 | break; | |
8091 | case bgp_path_selection_med: | |
8092 | return "MED"; | |
8093 | break; | |
8094 | case bgp_path_selection_peer: | |
8095 | return "Peer Type"; | |
8096 | break; | |
8097 | case bgp_path_selection_confed: | |
8098 | return "Confed Peer Type"; | |
8099 | break; | |
8100 | case bgp_path_selection_igp_metric: | |
8101 | return "IGP Metric"; | |
8102 | break; | |
8103 | case bgp_path_selection_older: | |
8104 | return "Older Path"; | |
8105 | break; | |
8106 | case bgp_path_selection_router_id: | |
8107 | return "Router ID"; | |
8108 | break; | |
8109 | case bgp_path_selection_cluster_length: | |
8110 | return "Cluser length"; | |
8111 | break; | |
8112 | case bgp_path_selection_stale: | |
8113 | return "Path Staleness"; | |
8114 | break; | |
8115 | case bgp_path_selection_local_configured: | |
8116 | return "Locally configured route"; | |
8117 | break; | |
8118 | case bgp_path_selection_neighbor_ip: | |
8119 | return "Neighbor IP"; | |
8120 | break; | |
8121 | case bgp_path_selection_default: | |
8122 | return "Nothing left to compare"; | |
8123 | break; | |
8124 | } | |
a74879b2 | 8125 | return "Invalid (internal error)"; |
0dc8ee70 DS |
8126 | } |
8127 | ||
f08b5ca0 DS |
8128 | void route_vty_out_detail(struct vty *vty, struct bgp *bgp, |
8129 | struct bgp_node *bn, struct bgp_path_info *path, | |
8130 | afi_t afi, safi_t safi, json_object *json_paths) | |
d62a17ae | 8131 | { |
8132 | char buf[INET6_ADDRSTRLEN]; | |
8133 | char buf1[BUFSIZ]; | |
d62a17ae | 8134 | char buf2[EVPN_ROUTE_STRLEN]; |
d62a17ae | 8135 | struct attr *attr; |
8136 | int sockunion_vty_out(struct vty *, union sockunion *); | |
8137 | time_t tbuf; | |
8138 | json_object *json_bestpath = NULL; | |
8139 | json_object *json_cluster_list = NULL; | |
8140 | json_object *json_cluster_list_list = NULL; | |
8141 | json_object *json_ext_community = NULL; | |
8142 | json_object *json_last_update = NULL; | |
7fd077aa | 8143 | json_object *json_pmsi = NULL; |
d62a17ae | 8144 | json_object *json_nexthop_global = NULL; |
8145 | json_object *json_nexthop_ll = NULL; | |
8146 | json_object *json_nexthops = NULL; | |
8147 | json_object *json_path = NULL; | |
8148 | json_object *json_peer = NULL; | |
8149 | json_object *json_string = NULL; | |
8150 | json_object *json_adv_to = NULL; | |
8151 | int first = 0; | |
8152 | struct listnode *node, *nnode; | |
8153 | struct peer *peer; | |
8154 | int addpath_capable; | |
8155 | int has_adj; | |
8156 | unsigned int first_as; | |
1defdda8 | 8157 | bool nexthop_self = |
9b6d8fcf | 8158 | CHECK_FLAG(path->flags, BGP_PATH_ANNC_NH_SELF) ? true : false; |
dcc68b5e | 8159 | int i; |
25b5da8d | 8160 | char *nexthop_fqdn = bgp_nexthop_fqdn(path->peer); |
d62a17ae | 8161 | |
8162 | if (json_paths) { | |
8163 | json_path = json_object_new_object(); | |
8164 | json_peer = json_object_new_object(); | |
8165 | json_nexthop_global = json_object_new_object(); | |
8166 | } | |
8167 | ||
d62a17ae | 8168 | if (!json_paths && safi == SAFI_EVPN) { |
b57ba6d2 | 8169 | char tag_buf[30]; |
d62a17ae | 8170 | |
f08b5ca0 DS |
8171 | bgp_evpn_route2str((struct prefix_evpn *)&bn->p, |
8172 | buf2, sizeof(buf2)); | |
d62a17ae | 8173 | vty_out(vty, " Route %s", buf2); |
8174 | tag_buf[0] = '\0'; | |
9b6d8fcf DS |
8175 | if (path->extra && path->extra->num_labels) { |
8176 | bgp_evpn_label2str(path->extra->label, | |
8177 | path->extra->num_labels, tag_buf, | |
a4d82a8a | 8178 | sizeof(tag_buf)); |
d62a17ae | 8179 | vty_out(vty, " VNI %s", tag_buf); |
8180 | } | |
8181 | vty_out(vty, "\n"); | |
9b6d8fcf | 8182 | if (path->extra && path->extra->parent) { |
4b7e6066 | 8183 | struct bgp_path_info *parent_ri; |
d62a17ae | 8184 | struct bgp_node *rn, *prn; |
8185 | ||
9b6d8fcf | 8186 | parent_ri = (struct bgp_path_info *)path->extra->parent; |
d62a17ae | 8187 | rn = parent_ri->net; |
8188 | if (rn && rn->prn) { | |
8189 | prn = rn->prn; | |
8190 | vty_out(vty, " Imported from %s:%s\n", | |
8191 | prefix_rd2str( | |
8192 | (struct prefix_rd *)&prn->p, | |
06b9f471 | 8193 | buf1, sizeof(buf1)), |
d62a17ae | 8194 | buf2); |
8195 | } | |
8196 | } | |
8197 | } | |
d62a17ae | 8198 | |
9b6d8fcf | 8199 | attr = path->attr; |
d62a17ae | 8200 | |
8201 | if (attr) { | |
8202 | /* Line1 display AS-path, Aggregator */ | |
8203 | if (attr->aspath) { | |
8204 | if (json_paths) { | |
68e1a55b DS |
8205 | if (!attr->aspath->json) |
8206 | aspath_str_update(attr->aspath, true); | |
d62a17ae | 8207 | json_object_lock(attr->aspath->json); |
8208 | json_object_object_add(json_path, "aspath", | |
8209 | attr->aspath->json); | |
8210 | } else { | |
8211 | if (attr->aspath->segments) | |
8212 | aspath_print_vty(vty, " %s", | |
8213 | attr->aspath, ""); | |
8214 | else | |
8215 | vty_out(vty, " Local"); | |
8216 | } | |
8217 | } | |
8218 | ||
9b6d8fcf | 8219 | if (CHECK_FLAG(path->flags, BGP_PATH_REMOVED)) { |
d62a17ae | 8220 | if (json_paths) |
8221 | json_object_boolean_true_add(json_path, | |
8222 | "removed"); | |
8223 | else | |
8224 | vty_out(vty, ", (removed)"); | |
8225 | } | |
8226 | ||
9b6d8fcf | 8227 | if (CHECK_FLAG(path->flags, BGP_PATH_STALE)) { |
d62a17ae | 8228 | if (json_paths) |
8229 | json_object_boolean_true_add(json_path, | |
8230 | "stale"); | |
8231 | else | |
8232 | vty_out(vty, ", (stale)"); | |
8233 | } | |
8234 | ||
8235 | if (CHECK_FLAG(attr->flag, | |
8236 | ATTR_FLAG_BIT(BGP_ATTR_AGGREGATOR))) { | |
8237 | if (json_paths) { | |
8238 | json_object_int_add(json_path, "aggregatorAs", | |
8239 | attr->aggregator_as); | |
8240 | json_object_string_add( | |
8241 | json_path, "aggregatorId", | |
8242 | inet_ntoa(attr->aggregator_addr)); | |
8243 | } else { | |
8244 | vty_out(vty, ", (aggregated by %u %s)", | |
8245 | attr->aggregator_as, | |
8246 | inet_ntoa(attr->aggregator_addr)); | |
8247 | } | |
8248 | } | |
8249 | ||
9b6d8fcf | 8250 | if (CHECK_FLAG(path->peer->af_flags[afi][safi], |
d62a17ae | 8251 | PEER_FLAG_REFLECTOR_CLIENT)) { |
8252 | if (json_paths) | |
8253 | json_object_boolean_true_add( | |
8254 | json_path, "rxedFromRrClient"); | |
8255 | else | |
8256 | vty_out(vty, ", (Received from a RR-client)"); | |
8257 | } | |
8258 | ||
9b6d8fcf | 8259 | if (CHECK_FLAG(path->peer->af_flags[afi][safi], |
d62a17ae | 8260 | PEER_FLAG_RSERVER_CLIENT)) { |
8261 | if (json_paths) | |
8262 | json_object_boolean_true_add( | |
8263 | json_path, "rxedFromRsClient"); | |
8264 | else | |
8265 | vty_out(vty, ", (Received from a RS-client)"); | |
8266 | } | |
8267 | ||
9b6d8fcf | 8268 | if (CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) { |
d62a17ae | 8269 | if (json_paths) |
8270 | json_object_boolean_true_add( | |
8271 | json_path, "dampeningHistoryEntry"); | |
8272 | else | |
8273 | vty_out(vty, ", (history entry)"); | |
9b6d8fcf | 8274 | } else if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED)) { |
d62a17ae | 8275 | if (json_paths) |
8276 | json_object_boolean_true_add( | |
8277 | json_path, "dampeningSuppressed"); | |
8278 | else | |
8279 | vty_out(vty, ", (suppressed due to dampening)"); | |
8280 | } | |
8281 | ||
8282 | if (!json_paths) | |
8283 | vty_out(vty, "\n"); | |
8284 | ||
8285 | /* Line2 display Next-hop, Neighbor, Router-id */ | |
8286 | /* Display the nexthop */ | |
f08b5ca0 DS |
8287 | if ((bn->p.family == AF_INET || bn->p.family == AF_ETHERNET |
8288 | || bn->p.family == AF_EVPN) | |
d62a17ae | 8289 | && (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
8290 | || safi == SAFI_EVPN | |
8291 | || !BGP_ATTR_NEXTHOP_AFI_IP6(attr))) { | |
8292 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
8293 | || safi == SAFI_EVPN) { | |
8294 | if (json_paths) | |
8295 | json_object_string_add( | |
25b5da8d DA |
8296 | json_nexthop_global, |
8297 | nexthop_fqdn ? "fqdn" : "ip", | |
8298 | nexthop_fqdn | |
8299 | ? nexthop_fqdn | |
8300 | : inet_ntoa( | |
8301 | attr->mp_nexthop_global_in)); | |
d62a17ae | 8302 | else |
8303 | vty_out(vty, " %s", | |
25b5da8d DA |
8304 | nexthop_fqdn |
8305 | ? nexthop_fqdn | |
8306 | : inet_ntoa( | |
8307 | attr->mp_nexthop_global_in)); | |
d62a17ae | 8308 | } else { |
8309 | if (json_paths) | |
8310 | json_object_string_add( | |
25b5da8d DA |
8311 | json_nexthop_global, |
8312 | nexthop_fqdn ? "fqdn" : "ip", | |
8313 | nexthop_fqdn | |
8314 | ? nexthop_fqdn | |
8315 | : inet_ntoa( | |
8316 | attr->nexthop)); | |
d62a17ae | 8317 | else |
8318 | vty_out(vty, " %s", | |
25b5da8d DA |
8319 | nexthop_fqdn |
8320 | ? nexthop_fqdn | |
8321 | : inet_ntoa( | |
8322 | attr->nexthop)); | |
d62a17ae | 8323 | } |
8324 | ||
8325 | if (json_paths) | |
8326 | json_object_string_add(json_nexthop_global, | |
8327 | "afi", "ipv4"); | |
8328 | } else { | |
8329 | if (json_paths) { | |
8330 | json_object_string_add( | |
25b5da8d DA |
8331 | json_nexthop_global, |
8332 | nexthop_fqdn ? "fqdn" : "ip", | |
8333 | nexthop_fqdn | |
8334 | ? nexthop_fqdn | |
8335 | : inet_ntop( | |
8336 | AF_INET6, | |
8337 | &attr->mp_nexthop_global, | |
8338 | buf, | |
8339 | INET6_ADDRSTRLEN)); | |
d62a17ae | 8340 | json_object_string_add(json_nexthop_global, |
8341 | "afi", "ipv6"); | |
8342 | json_object_string_add(json_nexthop_global, | |
8343 | "scope", "global"); | |
8344 | } else { | |
8345 | vty_out(vty, " %s", | |
25b5da8d DA |
8346 | nexthop_fqdn |
8347 | ? nexthop_fqdn | |
8348 | : inet_ntop( | |
8349 | AF_INET6, | |
8350 | &attr->mp_nexthop_global, | |
8351 | buf, | |
8352 | INET6_ADDRSTRLEN)); | |
d62a17ae | 8353 | } |
8354 | } | |
8355 | ||
8356 | /* Display the IGP cost or 'inaccessible' */ | |
9b6d8fcf | 8357 | if (!CHECK_FLAG(path->flags, BGP_PATH_VALID)) { |
d62a17ae | 8358 | if (json_paths) |
8359 | json_object_boolean_false_add( | |
8360 | json_nexthop_global, "accessible"); | |
8361 | else | |
8362 | vty_out(vty, " (inaccessible)"); | |
8363 | } else { | |
9b6d8fcf | 8364 | if (path->extra && path->extra->igpmetric) { |
d62a17ae | 8365 | if (json_paths) |
8366 | json_object_int_add( | |
8367 | json_nexthop_global, "metric", | |
9b6d8fcf | 8368 | path->extra->igpmetric); |
d62a17ae | 8369 | else |
8370 | vty_out(vty, " (metric %u)", | |
9b6d8fcf | 8371 | path->extra->igpmetric); |
d62a17ae | 8372 | } |
8373 | ||
8374 | /* IGP cost is 0, display this only for json */ | |
8375 | else { | |
8376 | if (json_paths) | |
8377 | json_object_int_add(json_nexthop_global, | |
8378 | "metric", 0); | |
8379 | } | |
8380 | ||
8381 | if (json_paths) | |
8382 | json_object_boolean_true_add( | |
8383 | json_nexthop_global, "accessible"); | |
8384 | } | |
8385 | ||
8386 | /* Display peer "from" output */ | |
8387 | /* This path was originated locally */ | |
9b6d8fcf | 8388 | if (path->peer == bgp->peer_self) { |
d62a17ae | 8389 | |
8390 | if (safi == SAFI_EVPN | |
f08b5ca0 | 8391 | || (bn->p.family == AF_INET |
d62a17ae | 8392 | && !BGP_ATTR_NEXTHOP_AFI_IP6(attr))) { |
8393 | if (json_paths) | |
8394 | json_object_string_add( | |
8395 | json_peer, "peerId", "0.0.0.0"); | |
8396 | else | |
8397 | vty_out(vty, " from 0.0.0.0 "); | |
8398 | } else { | |
8399 | if (json_paths) | |
8400 | json_object_string_add(json_peer, | |
8401 | "peerId", "::"); | |
8402 | else | |
8403 | vty_out(vty, " from :: "); | |
8404 | } | |
8405 | ||
8406 | if (json_paths) | |
8407 | json_object_string_add( | |
8408 | json_peer, "routerId", | |
8409 | inet_ntoa(bgp->router_id)); | |
8410 | else | |
8411 | vty_out(vty, "(%s)", inet_ntoa(bgp->router_id)); | |
8412 | } | |
8413 | ||
8414 | /* We RXed this path from one of our peers */ | |
8415 | else { | |
8416 | ||
8417 | if (json_paths) { | |
8418 | json_object_string_add( | |
8419 | json_peer, "peerId", | |
9b6d8fcf | 8420 | sockunion2str(&path->peer->su, buf, |
d62a17ae | 8421 | SU_ADDRSTRLEN)); |
8422 | json_object_string_add( | |
8423 | json_peer, "routerId", | |
8424 | inet_ntop(AF_INET, | |
9b6d8fcf | 8425 | &path->peer->remote_id, buf1, |
06b9f471 | 8426 | sizeof(buf1))); |
d62a17ae | 8427 | |
9b6d8fcf | 8428 | if (path->peer->hostname) |
d62a17ae | 8429 | json_object_string_add( |
8430 | json_peer, "hostname", | |
9b6d8fcf | 8431 | path->peer->hostname); |
d62a17ae | 8432 | |
9b6d8fcf | 8433 | if (path->peer->domainname) |
d62a17ae | 8434 | json_object_string_add( |
8435 | json_peer, "domainname", | |
9b6d8fcf | 8436 | path->peer->domainname); |
d62a17ae | 8437 | |
9b6d8fcf | 8438 | if (path->peer->conf_if) |
d62a17ae | 8439 | json_object_string_add( |
8440 | json_peer, "interface", | |
9b6d8fcf | 8441 | path->peer->conf_if); |
d62a17ae | 8442 | } else { |
9b6d8fcf DS |
8443 | if (path->peer->conf_if) { |
8444 | if (path->peer->hostname | |
d62a17ae | 8445 | && bgp_flag_check( |
9b6d8fcf | 8446 | path->peer->bgp, |
d62a17ae | 8447 | BGP_FLAG_SHOW_HOSTNAME)) |
8448 | vty_out(vty, " from %s(%s)", | |
9b6d8fcf DS |
8449 | path->peer->hostname, |
8450 | path->peer->conf_if); | |
d62a17ae | 8451 | else |
8452 | vty_out(vty, " from %s", | |
9b6d8fcf | 8453 | path->peer->conf_if); |
d62a17ae | 8454 | } else { |
9b6d8fcf | 8455 | if (path->peer->hostname |
d62a17ae | 8456 | && bgp_flag_check( |
9b6d8fcf | 8457 | path->peer->bgp, |
d62a17ae | 8458 | BGP_FLAG_SHOW_HOSTNAME)) |
8459 | vty_out(vty, " from %s(%s)", | |
9b6d8fcf DS |
8460 | path->peer->hostname, |
8461 | path->peer->host); | |
d62a17ae | 8462 | else |
8463 | vty_out(vty, " from %s", | |
8464 | sockunion2str( | |
9b6d8fcf | 8465 | &path->peer->su, |
d62a17ae | 8466 | buf, |
8467 | SU_ADDRSTRLEN)); | |
8468 | } | |
8469 | ||
8470 | if (attr->flag | |
8471 | & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)) | |
8472 | vty_out(vty, " (%s)", | |
8473 | inet_ntoa(attr->originator_id)); | |
8474 | else | |
8475 | vty_out(vty, " (%s)", | |
8476 | inet_ntop( | |
8477 | AF_INET, | |
9b6d8fcf | 8478 | &path->peer->remote_id, |
06b9f471 | 8479 | buf1, sizeof(buf1))); |
d62a17ae | 8480 | } |
8481 | } | |
8482 | ||
9df8b37c PZ |
8483 | /* |
8484 | * Note when vrfid of nexthop is different from that of prefix | |
8485 | */ | |
9b6d8fcf DS |
8486 | if (path->extra && path->extra->bgp_orig) { |
8487 | vrf_id_t nexthop_vrfid = path->extra->bgp_orig->vrf_id; | |
9df8b37c PZ |
8488 | |
8489 | if (json_paths) { | |
8490 | const char *vn; | |
8491 | ||
9b6d8fcf DS |
8492 | if (path->extra->bgp_orig->inst_type |
8493 | == BGP_INSTANCE_TYPE_DEFAULT) | |
9df8b37c | 8494 | |
03a6facf | 8495 | vn = VRF_DEFAULT_NAME; |
9df8b37c | 8496 | else |
9b6d8fcf | 8497 | vn = path->extra->bgp_orig->name; |
9df8b37c PZ |
8498 | |
8499 | json_object_string_add(json_path, "nhVrfName", | |
8500 | vn); | |
8501 | ||
8502 | if (nexthop_vrfid == VRF_UNKNOWN) { | |
8503 | json_object_int_add(json_path, | |
8504 | "nhVrfId", -1); | |
8505 | } else { | |
8506 | json_object_int_add(json_path, | |
8507 | "nhVrfId", (int)nexthop_vrfid); | |
8508 | } | |
8509 | } else { | |
8510 | if (nexthop_vrfid == VRF_UNKNOWN) | |
8511 | vty_out(vty, " vrf ?"); | |
8512 | else | |
8513 | vty_out(vty, " vrf %u", nexthop_vrfid); | |
8514 | } | |
8515 | } | |
8516 | ||
8517 | if (nexthop_self) { | |
8518 | if (json_paths) { | |
8519 | json_object_boolean_true_add(json_path, | |
8520 | "announceNexthopSelf"); | |
8521 | } else { | |
8522 | vty_out(vty, " announce-nh-self"); | |
8523 | } | |
8524 | } | |
8525 | ||
d62a17ae | 8526 | if (!json_paths) |
8527 | vty_out(vty, "\n"); | |
8528 | ||
8529 | /* display the link-local nexthop */ | |
8530 | if (attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) { | |
8531 | if (json_paths) { | |
8532 | json_nexthop_ll = json_object_new_object(); | |
8533 | json_object_string_add( | |
25b5da8d DA |
8534 | json_nexthop_ll, |
8535 | nexthop_fqdn ? "fqdn" : "ip", | |
8536 | nexthop_fqdn | |
8537 | ? nexthop_fqdn | |
8538 | : inet_ntop( | |
8539 | AF_INET6, | |
8540 | &attr->mp_nexthop_local, | |
8541 | buf, | |
8542 | INET6_ADDRSTRLEN)); | |
d62a17ae | 8543 | json_object_string_add(json_nexthop_ll, "afi", |
8544 | "ipv6"); | |
8545 | json_object_string_add(json_nexthop_ll, "scope", | |
8546 | "link-local"); | |
8547 | ||
8548 | json_object_boolean_true_add(json_nexthop_ll, | |
8549 | "accessible"); | |
8550 | ||
8551 | if (!attr->mp_nexthop_prefer_global) | |
8552 | json_object_boolean_true_add( | |
8553 | json_nexthop_ll, "used"); | |
8554 | else | |
8555 | json_object_boolean_true_add( | |
8556 | json_nexthop_global, "used"); | |
8557 | } else { | |
8558 | vty_out(vty, " (%s) %s\n", | |
8559 | inet_ntop(AF_INET6, | |
8560 | &attr->mp_nexthop_local, buf, | |
8561 | INET6_ADDRSTRLEN), | |
8562 | attr->mp_nexthop_prefer_global | |
8563 | ? "(prefer-global)" | |
8564 | : "(used)"); | |
8565 | } | |
8566 | } | |
8567 | /* If we do not have a link-local nexthop then we must flag the | |
8568 | global as "used" */ | |
8569 | else { | |
8570 | if (json_paths) | |
8571 | json_object_boolean_true_add( | |
8572 | json_nexthop_global, "used"); | |
8573 | } | |
718e3744 | 8574 | |
d62a17ae | 8575 | /* Line 3 display Origin, Med, Locpref, Weight, Tag, valid, |
8576 | * Int/Ext/Local, Atomic, best */ | |
8577 | if (json_paths) | |
8578 | json_object_string_add( | |
8579 | json_path, "origin", | |
8580 | bgp_origin_long_str[attr->origin]); | |
8581 | else | |
8582 | vty_out(vty, " Origin %s", | |
8583 | bgp_origin_long_str[attr->origin]); | |
8584 | ||
8585 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC)) { | |
50e05855 AD |
8586 | if (json_paths) { |
8587 | ||
8588 | /* | |
8589 | * Adding "metric" field to match with | |
8590 | * corresponding CLI. "med" will be | |
8591 | * deprecated in future. | |
8592 | */ | |
d62a17ae | 8593 | json_object_int_add(json_path, "med", |
8594 | attr->med); | |
50e05855 AD |
8595 | json_object_int_add(json_path, "metric", |
8596 | attr->med); | |
8597 | } else | |
d62a17ae | 8598 | vty_out(vty, ", metric %u", attr->med); |
8599 | } | |
718e3744 | 8600 | |
d62a17ae | 8601 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)) { |
8602 | if (json_paths) | |
8603 | json_object_int_add(json_path, "localpref", | |
8604 | attr->local_pref); | |
8605 | else | |
8606 | vty_out(vty, ", localpref %u", | |
8607 | attr->local_pref); | |
d62a17ae | 8608 | } |
718e3744 | 8609 | |
d62a17ae | 8610 | if (attr->weight != 0) { |
8611 | if (json_paths) | |
8612 | json_object_int_add(json_path, "weight", | |
8613 | attr->weight); | |
8614 | else | |
8615 | vty_out(vty, ", weight %u", attr->weight); | |
8616 | } | |
718e3744 | 8617 | |
d62a17ae | 8618 | if (attr->tag != 0) { |
8619 | if (json_paths) | |
8620 | json_object_int_add(json_path, "tag", | |
8621 | attr->tag); | |
8622 | else | |
8623 | vty_out(vty, ", tag %" ROUTE_TAG_PRI, | |
8624 | attr->tag); | |
8625 | } | |
718e3744 | 8626 | |
9b6d8fcf | 8627 | if (!CHECK_FLAG(path->flags, BGP_PATH_VALID)) { |
d62a17ae | 8628 | if (json_paths) |
8629 | json_object_boolean_false_add(json_path, | |
8630 | "valid"); | |
8631 | else | |
8632 | vty_out(vty, ", invalid"); | |
9b6d8fcf | 8633 | } else if (!CHECK_FLAG(path->flags, BGP_PATH_HISTORY)) { |
d62a17ae | 8634 | if (json_paths) |
8635 | json_object_boolean_true_add(json_path, | |
8636 | "valid"); | |
8637 | else | |
8638 | vty_out(vty, ", valid"); | |
8639 | } | |
718e3744 | 8640 | |
9b6d8fcf DS |
8641 | if (path->peer != bgp->peer_self) { |
8642 | if (path->peer->as == path->peer->local_as) { | |
d62a17ae | 8643 | if (CHECK_FLAG(bgp->config, |
8644 | BGP_CONFIG_CONFEDERATION)) { | |
8645 | if (json_paths) | |
8646 | json_object_string_add( | |
8647 | json_peer, "type", | |
8648 | "confed-internal"); | |
8649 | else | |
8650 | vty_out(vty, | |
8651 | ", confed-internal"); | |
8652 | } else { | |
8653 | if (json_paths) | |
8654 | json_object_string_add( | |
8655 | json_peer, "type", | |
8656 | "internal"); | |
8657 | else | |
8658 | vty_out(vty, ", internal"); | |
8659 | } | |
8660 | } else { | |
8661 | if (bgp_confederation_peers_check( | |
9b6d8fcf | 8662 | bgp, path->peer->as)) { |
d62a17ae | 8663 | if (json_paths) |
8664 | json_object_string_add( | |
8665 | json_peer, "type", | |
8666 | "confed-external"); | |
8667 | else | |
8668 | vty_out(vty, | |
8669 | ", confed-external"); | |
8670 | } else { | |
8671 | if (json_paths) | |
8672 | json_object_string_add( | |
8673 | json_peer, "type", | |
8674 | "external"); | |
8675 | else | |
8676 | vty_out(vty, ", external"); | |
8677 | } | |
8678 | } | |
9b6d8fcf | 8679 | } else if (path->sub_type == BGP_ROUTE_AGGREGATE) { |
d62a17ae | 8680 | if (json_paths) { |
8681 | json_object_boolean_true_add(json_path, | |
8682 | "aggregated"); | |
8683 | json_object_boolean_true_add(json_path, | |
8684 | "local"); | |
8685 | } else { | |
8686 | vty_out(vty, ", aggregated, local"); | |
8687 | } | |
9b6d8fcf | 8688 | } else if (path->type != ZEBRA_ROUTE_BGP) { |
d62a17ae | 8689 | if (json_paths) |
8690 | json_object_boolean_true_add(json_path, | |
8691 | "sourced"); | |
8692 | else | |
8693 | vty_out(vty, ", sourced"); | |
8694 | } else { | |
8695 | if (json_paths) { | |
8696 | json_object_boolean_true_add(json_path, | |
8697 | "sourced"); | |
8698 | json_object_boolean_true_add(json_path, | |
8699 | "local"); | |
8700 | } else { | |
8701 | vty_out(vty, ", sourced, local"); | |
8702 | } | |
8703 | } | |
718e3744 | 8704 | |
d62a17ae | 8705 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE)) { |
8706 | if (json_paths) | |
8707 | json_object_boolean_true_add(json_path, | |
8708 | "atomicAggregate"); | |
8709 | else | |
8710 | vty_out(vty, ", atomic-aggregate"); | |
8711 | } | |
718e3744 | 8712 | |
9b6d8fcf DS |
8713 | if (CHECK_FLAG(path->flags, BGP_PATH_MULTIPATH) |
8714 | || (CHECK_FLAG(path->flags, BGP_PATH_SELECTED) | |
8715 | && bgp_path_info_mpath_count(path))) { | |
d62a17ae | 8716 | if (json_paths) |
8717 | json_object_boolean_true_add(json_path, | |
8718 | "multipath"); | |
8719 | else | |
8720 | vty_out(vty, ", multipath"); | |
8721 | } | |
856ca177 | 8722 | |
d62a17ae | 8723 | // Mark the bestpath(s) |
9b6d8fcf | 8724 | if (CHECK_FLAG(path->flags, BGP_PATH_DMED_SELECTED)) { |
d62a17ae | 8725 | first_as = aspath_get_first_as(attr->aspath); |
8726 | ||
8727 | if (json_paths) { | |
8728 | if (!json_bestpath) | |
8729 | json_bestpath = | |
8730 | json_object_new_object(); | |
8731 | json_object_int_add(json_bestpath, | |
8732 | "bestpathFromAs", first_as); | |
8733 | } else { | |
8734 | if (first_as) | |
fb2b0934 | 8735 | vty_out(vty, ", bestpath-from-AS %u", |
d62a17ae | 8736 | first_as); |
8737 | else | |
8738 | vty_out(vty, | |
8739 | ", bestpath-from-AS Local"); | |
8740 | } | |
8741 | } | |
718e3744 | 8742 | |
9b6d8fcf | 8743 | if (CHECK_FLAG(path->flags, BGP_PATH_SELECTED)) { |
d62a17ae | 8744 | if (json_paths) { |
8745 | if (!json_bestpath) | |
8746 | json_bestpath = | |
8747 | json_object_new_object(); | |
8748 | json_object_boolean_true_add(json_bestpath, | |
8749 | "overall"); | |
0dc8ee70 DS |
8750 | json_object_string_add(json_bestpath, |
8751 | "selectionReason", | |
8752 | bgp_path_selection_reason2str(bn->reason)); | |
8753 | } else { | |
d62a17ae | 8754 | vty_out(vty, ", best"); |
0dc8ee70 DS |
8755 | vty_out(vty, " (%s)", |
8756 | bgp_path_selection_reason2str(bn->reason)); | |
8757 | } | |
d62a17ae | 8758 | } |
718e3744 | 8759 | |
d62a17ae | 8760 | if (json_bestpath) |
8761 | json_object_object_add(json_path, "bestpath", | |
8762 | json_bestpath); | |
8763 | ||
8764 | if (!json_paths) | |
8765 | vty_out(vty, "\n"); | |
8766 | ||
8767 | /* Line 4 display Community */ | |
8768 | if (attr->community) { | |
8769 | if (json_paths) { | |
a69ea8ae | 8770 | if (!attr->community->json) |
a4d82a8a | 8771 | community_str(attr->community, true); |
d62a17ae | 8772 | json_object_lock(attr->community->json); |
8773 | json_object_object_add(json_path, "community", | |
8774 | attr->community->json); | |
8775 | } else { | |
8776 | vty_out(vty, " Community: %s\n", | |
8777 | attr->community->str); | |
8778 | } | |
8779 | } | |
718e3744 | 8780 | |
d62a17ae | 8781 | /* Line 5 display Extended-community */ |
8782 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)) { | |
8783 | if (json_paths) { | |
8784 | json_ext_community = json_object_new_object(); | |
8785 | json_object_string_add(json_ext_community, | |
8786 | "string", | |
8787 | attr->ecommunity->str); | |
8788 | json_object_object_add(json_path, | |
8789 | "extendedCommunity", | |
8790 | json_ext_community); | |
8791 | } else { | |
8792 | vty_out(vty, " Extended Community: %s\n", | |
8793 | attr->ecommunity->str); | |
8794 | } | |
8795 | } | |
adbac85e | 8796 | |
d62a17ae | 8797 | /* Line 6 display Large community */ |
b96879c0 DS |
8798 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES)) { |
8799 | if (json_paths) { | |
8d9b8ed9 PM |
8800 | if (!attr->lcommunity->json) |
8801 | lcommunity_str(attr->lcommunity, true); | |
8802 | json_object_lock(attr->lcommunity->json); | |
b96879c0 DS |
8803 | json_object_object_add(json_path, |
8804 | "largeCommunity", | |
8d9b8ed9 | 8805 | attr->lcommunity->json); |
b96879c0 DS |
8806 | } else { |
8807 | vty_out(vty, " Large Community: %s\n", | |
8808 | attr->lcommunity->str); | |
8809 | } | |
8810 | } | |
d62a17ae | 8811 | |
8812 | /* Line 7 display Originator, Cluster-id */ | |
8813 | if ((attr->flag & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)) | |
8814 | || (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST))) { | |
8815 | if (attr->flag | |
8816 | & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)) { | |
8817 | if (json_paths) | |
8818 | json_object_string_add( | |
8819 | json_path, "originatorId", | |
8820 | inet_ntoa(attr->originator_id)); | |
8821 | else | |
8822 | vty_out(vty, " Originator: %s", | |
8823 | inet_ntoa(attr->originator_id)); | |
8824 | } | |
8825 | ||
8826 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST)) { | |
8827 | int i; | |
8828 | ||
8829 | if (json_paths) { | |
8830 | json_cluster_list = | |
8831 | json_object_new_object(); | |
8832 | json_cluster_list_list = | |
8833 | json_object_new_array(); | |
8834 | ||
8835 | for (i = 0; | |
8836 | i < attr->cluster->length / 4; | |
8837 | i++) { | |
8838 | json_string = json_object_new_string( | |
8839 | inet_ntoa( | |
8840 | attr->cluster->list | |
8841 | [i])); | |
8842 | json_object_array_add( | |
8843 | json_cluster_list_list, | |
8844 | json_string); | |
8845 | } | |
8846 | ||
8847 | /* struct cluster_list does not have | |
8848 | "str" variable like | |
8849 | * aspath and community do. Add this | |
8850 | someday if someone | |
8851 | * asks for it. | |
8852 | json_object_string_add(json_cluster_list, | |
8853 | "string", attr->cluster->str); | |
8854 | */ | |
8855 | json_object_object_add( | |
8856 | json_cluster_list, "list", | |
8857 | json_cluster_list_list); | |
8858 | json_object_object_add( | |
8859 | json_path, "clusterList", | |
8860 | json_cluster_list); | |
8861 | } else { | |
8862 | vty_out(vty, ", Cluster list: "); | |
8863 | ||
8864 | for (i = 0; | |
8865 | i < attr->cluster->length / 4; | |
8866 | i++) { | |
8867 | vty_out(vty, "%s ", | |
8868 | inet_ntoa( | |
8869 | attr->cluster->list | |
8870 | [i])); | |
8871 | } | |
8872 | } | |
8873 | } | |
8874 | ||
8875 | if (!json_paths) | |
8876 | vty_out(vty, "\n"); | |
8877 | } | |
adbac85e | 8878 | |
9b6d8fcf DS |
8879 | if (path->extra && path->extra->damp_info) |
8880 | bgp_damp_info_vty(vty, path, json_path); | |
d62a17ae | 8881 | |
6a527b2f | 8882 | /* Remote Label */ |
9b6d8fcf | 8883 | if (path->extra && bgp_is_valid_label(&path->extra->label[0]) |
6a527b2f | 8884 | && safi != SAFI_EVPN) { |
9b6d8fcf | 8885 | mpls_label_t label = label_pton(&path->extra->label[0]); |
121e245d | 8886 | |
d62a17ae | 8887 | if (json_paths) |
8888 | json_object_int_add(json_path, "remoteLabel", | |
8889 | label); | |
8890 | else | |
8891 | vty_out(vty, " Remote label: %d\n", label); | |
8892 | } | |
b05a1c8b | 8893 | |
d62a17ae | 8894 | /* Label Index */ |
8895 | if (attr->label_index != BGP_INVALID_LABEL_INDEX) { | |
8896 | if (json_paths) | |
8897 | json_object_int_add(json_path, "labelIndex", | |
8898 | attr->label_index); | |
8899 | else | |
8900 | vty_out(vty, " Label Index: %d\n", | |
8901 | attr->label_index); | |
8902 | } | |
520d5d76 | 8903 | |
d62a17ae | 8904 | /* Line 8 display Addpath IDs */ |
dcc68b5e MS |
8905 | if (path->addpath_rx_id |
8906 | || bgp_addpath_info_has_ids(&path->tx_addpath)) { | |
d62a17ae | 8907 | if (json_paths) { |
8908 | json_object_int_add(json_path, "addpathRxId", | |
9b6d8fcf | 8909 | path->addpath_rx_id); |
dcc68b5e MS |
8910 | |
8911 | /* Keep backwards compatibility with the old API | |
8912 | * by putting TX All's ID in the old field | |
8913 | */ | |
8914 | json_object_int_add( | |
8915 | json_path, "addpathTxId", | |
8916 | path->tx_addpath.addpath_tx_id | |
8917 | [BGP_ADDPATH_ALL]); | |
8918 | ||
8919 | /* ... but create a specific field for each | |
8920 | * strategy | |
8921 | */ | |
8922 | for (i = 0; i < BGP_ADDPATH_MAX; i++) { | |
8923 | json_object_int_add( | |
8924 | json_path, | |
8925 | bgp_addpath_names(i) | |
8926 | ->id_json_name, | |
8927 | path->tx_addpath | |
8928 | .addpath_tx_id[i]); | |
8929 | } | |
d62a17ae | 8930 | } else { |
dcc68b5e MS |
8931 | vty_out(vty, " AddPath ID: RX %u, ", |
8932 | path->addpath_rx_id); | |
8933 | ||
8934 | route_vty_out_tx_ids(vty, &path->tx_addpath); | |
d62a17ae | 8935 | } |
8936 | } | |
718e3744 | 8937 | |
d62a17ae | 8938 | /* If we used addpath to TX a non-bestpath we need to display |
dcc68b5e MS |
8939 | * "Advertised to" on a path-by-path basis |
8940 | */ | |
8941 | if (bgp_addpath_is_addpath_used(&bgp->tx_addpath, afi, safi)) { | |
d62a17ae | 8942 | first = 1; |
8943 | ||
8944 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
8945 | addpath_capable = | |
8946 | bgp_addpath_encode_tx(peer, afi, safi); | |
8947 | has_adj = bgp_adj_out_lookup( | |
dcc68b5e MS |
8948 | peer, path->net, |
8949 | bgp_addpath_id_for_peer( | |
8950 | peer, afi, safi, | |
8951 | &path->tx_addpath)); | |
d62a17ae | 8952 | |
8953 | if ((addpath_capable && has_adj) | |
8954 | || (!addpath_capable && has_adj | |
9b6d8fcf | 8955 | && CHECK_FLAG(path->flags, |
1defdda8 | 8956 | BGP_PATH_SELECTED))) { |
d62a17ae | 8957 | if (json_path && !json_adv_to) |
8958 | json_adv_to = | |
8959 | json_object_new_object(); | |
8960 | ||
8961 | route_vty_out_advertised_to( | |
8962 | vty, peer, &first, | |
8963 | " Advertised to:", | |
8964 | json_adv_to); | |
8965 | } | |
8966 | } | |
8967 | ||
8968 | if (json_path) { | |
8969 | if (json_adv_to) { | |
8970 | json_object_object_add(json_path, | |
8971 | "advertisedTo", | |
8972 | json_adv_to); | |
8973 | } | |
8974 | } else { | |
8975 | if (!first) { | |
8976 | vty_out(vty, "\n"); | |
8977 | } | |
8978 | } | |
8979 | } | |
b05a1c8b | 8980 | |
d62a17ae | 8981 | /* Line 9 display Uptime */ |
9b6d8fcf | 8982 | tbuf = time(NULL) - (bgp_clock() - path->uptime); |
d62a17ae | 8983 | if (json_paths) { |
8984 | json_last_update = json_object_new_object(); | |
8985 | json_object_int_add(json_last_update, "epoch", tbuf); | |
8986 | json_object_string_add(json_last_update, "string", | |
8987 | ctime(&tbuf)); | |
8988 | json_object_object_add(json_path, "lastUpdate", | |
8989 | json_last_update); | |
8990 | } else | |
8991 | vty_out(vty, " Last update: %s", ctime(&tbuf)); | |
7fd077aa | 8992 | |
8993 | /* Line 10 display PMSI tunnel attribute, if present */ | |
8994 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_PMSI_TUNNEL)) { | |
b7d08f5a | 8995 | const char *str = lookup_msg(bgp_pmsi_tnltype_str, |
8996 | attr->pmsi_tnl_type, | |
8997 | PMSI_TNLTYPE_STR_DEFAULT); | |
8998 | ||
7fd077aa | 8999 | if (json_paths) { |
9000 | json_pmsi = json_object_new_object(); | |
b7d08f5a | 9001 | json_object_string_add(json_pmsi, |
9002 | "tunnelType", str); | |
27f28ccc AK |
9003 | json_object_int_add(json_pmsi, |
9004 | "label", | |
9005 | label2vni(&attr->label)); | |
7fd077aa | 9006 | json_object_object_add(json_path, "pmsi", |
9007 | json_pmsi); | |
9008 | } else | |
27f28ccc AK |
9009 | vty_out(vty, |
9010 | " PMSI Tunnel Type: %s, label: %d\n", | |
9011 | str, label2vni(&attr->label)); | |
7fd077aa | 9012 | } |
9013 | ||
d62a17ae | 9014 | } |
f1aa5d8a | 9015 | |
d62a17ae | 9016 | /* We've constructed the json object for this path, add it to the json |
9017 | * array of paths | |
9018 | */ | |
9019 | if (json_paths) { | |
9020 | if (json_nexthop_global || json_nexthop_ll) { | |
9021 | json_nexthops = json_object_new_array(); | |
f1aa5d8a | 9022 | |
d62a17ae | 9023 | if (json_nexthop_global) |
9024 | json_object_array_add(json_nexthops, | |
9025 | json_nexthop_global); | |
f1aa5d8a | 9026 | |
d62a17ae | 9027 | if (json_nexthop_ll) |
9028 | json_object_array_add(json_nexthops, | |
9029 | json_nexthop_ll); | |
f1aa5d8a | 9030 | |
d62a17ae | 9031 | json_object_object_add(json_path, "nexthops", |
9032 | json_nexthops); | |
9033 | } | |
9034 | ||
9035 | json_object_object_add(json_path, "peer", json_peer); | |
9036 | json_object_array_add(json_paths, json_path); | |
9037 | } else | |
9038 | vty_out(vty, "\n"); | |
b366b518 BB |
9039 | } |
9040 | ||
96ade3ed | 9041 | #define BGP_SHOW_HEADER_CSV "Flags, Network, Next Hop, Metric, LocPrf, Weight, Path" |
181039f3 DL |
9042 | #define BGP_SHOW_DAMP_HEADER " Network From Reuse Path\n" |
9043 | #define BGP_SHOW_FLAP_HEADER " Network From Flaps Duration Reuse Path\n" | |
718e3744 | 9044 | |
d62a17ae | 9045 | static int bgp_show_prefix_list(struct vty *vty, struct bgp *bgp, |
9046 | const char *prefix_list_str, afi_t afi, | |
9047 | safi_t safi, enum bgp_show_type type); | |
9048 | static int bgp_show_filter_list(struct vty *vty, struct bgp *bgp, | |
9049 | const char *filter, afi_t afi, safi_t safi, | |
9050 | enum bgp_show_type type); | |
9051 | static int bgp_show_route_map(struct vty *vty, struct bgp *bgp, | |
9052 | const char *rmap_str, afi_t afi, safi_t safi, | |
9053 | enum bgp_show_type type); | |
9054 | static int bgp_show_community_list(struct vty *vty, struct bgp *bgp, | |
9055 | const char *com, int exact, afi_t afi, | |
9056 | safi_t safi); | |
9057 | static int bgp_show_prefix_longer(struct vty *vty, struct bgp *bgp, | |
9058 | const char *prefix, afi_t afi, safi_t safi, | |
9059 | enum bgp_show_type type); | |
a4d82a8a PZ |
9060 | static int bgp_show_regexp(struct vty *vty, struct bgp *bgp, const char *regstr, |
9061 | afi_t afi, safi_t safi, enum bgp_show_type type); | |
7f323236 DW |
9062 | static int bgp_show_community(struct vty *vty, struct bgp *bgp, |
9063 | const char *comstr, int exact, afi_t afi, | |
9f049418 | 9064 | safi_t safi, bool use_json); |
d62a17ae | 9065 | |
1ae44dfc LB |
9066 | |
9067 | static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi, | |
d62a17ae | 9068 | struct bgp_table *table, enum bgp_show_type type, |
9f049418 | 9069 | void *output_arg, bool use_json, char *rd, |
a4d82a8a PZ |
9070 | int is_last, unsigned long *output_cum, |
9071 | unsigned long *total_cum, | |
9386b588 | 9072 | unsigned long *json_header_depth) |
d62a17ae | 9073 | { |
40381db7 | 9074 | struct bgp_path_info *pi; |
d62a17ae | 9075 | struct bgp_node *rn; |
9076 | int header = 1; | |
9077 | int display; | |
1ae44dfc LB |
9078 | unsigned long output_count = 0; |
9079 | unsigned long total_count = 0; | |
d62a17ae | 9080 | struct prefix *p; |
d62a17ae | 9081 | char buf2[BUFSIZ]; |
9082 | json_object *json_paths = NULL; | |
9083 | int first = 1; | |
9084 | ||
1ae44dfc LB |
9085 | if (output_cum && *output_cum != 0) |
9086 | header = 0; | |
9087 | ||
9386b588 | 9088 | if (use_json && !*json_header_depth) { |
d62a17ae | 9089 | vty_out(vty, |
66f80d74 | 9090 | "{\n \"vrfId\": %d,\n \"vrfName\": \"%s\",\n \"tableVersion\": %" PRId64 |
01eced22 AD |
9091 | ",\n \"routerId\": \"%s\",\n \"defaultLocPrf\": %u,\n" |
9092 | " \"localAS\": %u,\n \"routes\": { ", | |
a8bf7d9c | 9093 | bgp->vrf_id == VRF_UNKNOWN ? -1 : (int)bgp->vrf_id, |
5742e42b DS |
9094 | bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT |
9095 | ? VRF_DEFAULT_NAME | |
9096 | : bgp->name, | |
01eced22 AD |
9097 | table->version, inet_ntoa(bgp->router_id), |
9098 | bgp->default_local_pref, bgp->as); | |
9386b588 PZ |
9099 | *json_header_depth = 2; |
9100 | if (rd) { | |
445c2480 | 9101 | vty_out(vty, " \"routeDistinguishers\" : {"); |
9386b588 PZ |
9102 | ++*json_header_depth; |
9103 | } | |
d62a17ae | 9104 | } |
718e3744 | 9105 | |
445c2480 DS |
9106 | if (use_json && rd) { |
9107 | vty_out(vty, " \"%s\" : { ", rd); | |
9108 | } | |
9109 | ||
d62a17ae | 9110 | /* Start processing of routes. */ |
98ce9a06 | 9111 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { |
6f94b685 DS |
9112 | pi = bgp_node_get_bgp_path_info(rn); |
9113 | if (pi == NULL) | |
98ce9a06 | 9114 | continue; |
d62a17ae | 9115 | |
98ce9a06 | 9116 | display = 0; |
98ce9a06 DS |
9117 | if (use_json) |
9118 | json_paths = json_object_new_array(); | |
9119 | else | |
9120 | json_paths = NULL; | |
d62a17ae | 9121 | |
6f94b685 | 9122 | for (; pi; pi = pi->next) { |
98ce9a06 DS |
9123 | total_count++; |
9124 | if (type == bgp_show_type_flap_statistics | |
9125 | || type == bgp_show_type_flap_neighbor | |
9126 | || type == bgp_show_type_dampend_paths | |
9127 | || type == bgp_show_type_damp_neighbor) { | |
40381db7 | 9128 | if (!(pi->extra && pi->extra->damp_info)) |
98ce9a06 DS |
9129 | continue; |
9130 | } | |
9131 | if (type == bgp_show_type_regexp) { | |
9132 | regex_t *regex = output_arg; | |
d62a17ae | 9133 | |
40381db7 | 9134 | if (bgp_regexec(regex, pi->attr->aspath) |
98ce9a06 DS |
9135 | == REG_NOMATCH) |
9136 | continue; | |
9137 | } | |
9138 | if (type == bgp_show_type_prefix_list) { | |
9139 | struct prefix_list *plist = output_arg; | |
d62a17ae | 9140 | |
98ce9a06 DS |
9141 | if (prefix_list_apply(plist, &rn->p) |
9142 | != PREFIX_PERMIT) | |
9143 | continue; | |
9144 | } | |
9145 | if (type == bgp_show_type_filter_list) { | |
9146 | struct as_list *as_list = output_arg; | |
d62a17ae | 9147 | |
40381db7 | 9148 | if (as_list_apply(as_list, pi->attr->aspath) |
98ce9a06 DS |
9149 | != AS_FILTER_PERMIT) |
9150 | continue; | |
9151 | } | |
9152 | if (type == bgp_show_type_route_map) { | |
9153 | struct route_map *rmap = output_arg; | |
9b6d8fcf | 9154 | struct bgp_path_info path; |
98ce9a06 | 9155 | struct attr dummy_attr; |
b68885f9 | 9156 | route_map_result_t ret; |
d62a17ae | 9157 | |
40381db7 | 9158 | bgp_attr_dup(&dummy_attr, pi->attr); |
d62a17ae | 9159 | |
40381db7 | 9160 | path.peer = pi->peer; |
9b6d8fcf | 9161 | path.attr = &dummy_attr; |
d62a17ae | 9162 | |
a4d82a8a | 9163 | ret = route_map_apply(rmap, &rn->p, RMAP_BGP, |
9b6d8fcf | 9164 | &path); |
98ce9a06 DS |
9165 | if (ret == RMAP_DENYMATCH) |
9166 | continue; | |
9167 | } | |
9168 | if (type == bgp_show_type_neighbor | |
9169 | || type == bgp_show_type_flap_neighbor | |
9170 | || type == bgp_show_type_damp_neighbor) { | |
9171 | union sockunion *su = output_arg; | |
9172 | ||
40381db7 DS |
9173 | if (pi->peer == NULL |
9174 | || pi->peer->su_remote == NULL | |
9175 | || !sockunion_same(pi->peer->su_remote, su)) | |
98ce9a06 DS |
9176 | continue; |
9177 | } | |
9178 | if (type == bgp_show_type_cidr_only) { | |
d7c0a89a | 9179 | uint32_t destination; |
d62a17ae | 9180 | |
98ce9a06 DS |
9181 | destination = ntohl(rn->p.u.prefix4.s_addr); |
9182 | if (IN_CLASSC(destination) | |
9183 | && rn->p.prefixlen == 24) | |
9184 | continue; | |
9185 | if (IN_CLASSB(destination) | |
9186 | && rn->p.prefixlen == 16) | |
9187 | continue; | |
9188 | if (IN_CLASSA(destination) | |
9189 | && rn->p.prefixlen == 8) | |
9190 | continue; | |
9191 | } | |
9192 | if (type == bgp_show_type_prefix_longer) { | |
f7813c7c | 9193 | p = output_arg; |
98ce9a06 DS |
9194 | if (!prefix_match(p, &rn->p)) |
9195 | continue; | |
9196 | } | |
9197 | if (type == bgp_show_type_community_all) { | |
40381db7 | 9198 | if (!pi->attr->community) |
98ce9a06 DS |
9199 | continue; |
9200 | } | |
9201 | if (type == bgp_show_type_community) { | |
9202 | struct community *com = output_arg; | |
d62a17ae | 9203 | |
40381db7 DS |
9204 | if (!pi->attr->community |
9205 | || !community_match(pi->attr->community, | |
98ce9a06 DS |
9206 | com)) |
9207 | continue; | |
9208 | } | |
9209 | if (type == bgp_show_type_community_exact) { | |
9210 | struct community *com = output_arg; | |
d62a17ae | 9211 | |
40381db7 DS |
9212 | if (!pi->attr->community |
9213 | || !community_cmp(pi->attr->community, com)) | |
98ce9a06 DS |
9214 | continue; |
9215 | } | |
9216 | if (type == bgp_show_type_community_list) { | |
9217 | struct community_list *list = output_arg; | |
d62a17ae | 9218 | |
40381db7 | 9219 | if (!community_list_match(pi->attr->community, |
a4d82a8a | 9220 | list)) |
98ce9a06 DS |
9221 | continue; |
9222 | } | |
a4d82a8a | 9223 | if (type == bgp_show_type_community_list_exact) { |
98ce9a06 | 9224 | struct community_list *list = output_arg; |
d62a17ae | 9225 | |
98ce9a06 | 9226 | if (!community_list_exact_match( |
40381db7 | 9227 | pi->attr->community, list)) |
98ce9a06 DS |
9228 | continue; |
9229 | } | |
9230 | if (type == bgp_show_type_lcommunity) { | |
9231 | struct lcommunity *lcom = output_arg; | |
d62a17ae | 9232 | |
40381db7 DS |
9233 | if (!pi->attr->lcommunity |
9234 | || !lcommunity_match(pi->attr->lcommunity, | |
98ce9a06 DS |
9235 | lcom)) |
9236 | continue; | |
9237 | } | |
36a206db | 9238 | |
9239 | if (type == bgp_show_type_lcommunity_exact) { | |
9240 | struct lcommunity *lcom = output_arg; | |
9241 | ||
9242 | if (!pi->attr->lcommunity | |
9243 | || !lcommunity_cmp(pi->attr->lcommunity, | |
9244 | lcom)) | |
9245 | continue; | |
9246 | } | |
98ce9a06 DS |
9247 | if (type == bgp_show_type_lcommunity_list) { |
9248 | struct community_list *list = output_arg; | |
d62a17ae | 9249 | |
40381db7 | 9250 | if (!lcommunity_list_match(pi->attr->lcommunity, |
a4d82a8a | 9251 | list)) |
98ce9a06 DS |
9252 | continue; |
9253 | } | |
36a206db | 9254 | if (type |
9255 | == bgp_show_type_lcommunity_list_exact) { | |
9256 | struct community_list *list = output_arg; | |
9257 | ||
9258 | if (!lcommunity_list_exact_match( | |
9259 | pi->attr->lcommunity, list)) | |
9260 | continue; | |
9261 | } | |
98ce9a06 | 9262 | if (type == bgp_show_type_lcommunity_all) { |
40381db7 | 9263 | if (!pi->attr->lcommunity) |
98ce9a06 DS |
9264 | continue; |
9265 | } | |
9266 | if (type == bgp_show_type_dampend_paths | |
9267 | || type == bgp_show_type_damp_neighbor) { | |
40381db7 DS |
9268 | if (!CHECK_FLAG(pi->flags, BGP_PATH_DAMPED) |
9269 | || CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)) | |
98ce9a06 DS |
9270 | continue; |
9271 | } | |
9272 | ||
9273 | if (!use_json && header) { | |
996c9314 | 9274 | vty_out(vty, "BGP table version is %" PRIu64 |
9df8b37c | 9275 | ", local router ID is %s, vrf id ", |
98ce9a06 DS |
9276 | table->version, |
9277 | inet_ntoa(bgp->router_id)); | |
9df8b37c PZ |
9278 | if (bgp->vrf_id == VRF_UNKNOWN) |
9279 | vty_out(vty, "%s", VRFID_NONE_STR); | |
9280 | else | |
9281 | vty_out(vty, "%u", bgp->vrf_id); | |
9282 | vty_out(vty, "\n"); | |
01eced22 AD |
9283 | vty_out(vty, "Default local pref %u, ", |
9284 | bgp->default_local_pref); | |
9285 | vty_out(vty, "local AS %u\n", bgp->as); | |
98ce9a06 | 9286 | vty_out(vty, BGP_SHOW_SCODE_HEADER); |
9df8b37c | 9287 | vty_out(vty, BGP_SHOW_NCODE_HEADER); |
98ce9a06 | 9288 | vty_out(vty, BGP_SHOW_OCODE_HEADER); |
d62a17ae | 9289 | if (type == bgp_show_type_dampend_paths |
9290 | || type == bgp_show_type_damp_neighbor) | |
98ce9a06 | 9291 | vty_out(vty, BGP_SHOW_DAMP_HEADER); |
a4d82a8a PZ |
9292 | else if (type == bgp_show_type_flap_statistics |
9293 | || type == bgp_show_type_flap_neighbor) | |
98ce9a06 | 9294 | vty_out(vty, BGP_SHOW_FLAP_HEADER); |
d62a17ae | 9295 | else |
98ce9a06 DS |
9296 | vty_out(vty, BGP_SHOW_HEADER); |
9297 | header = 0; | |
d62a17ae | 9298 | } |
98ce9a06 DS |
9299 | if (rd != NULL && !display && !output_count) { |
9300 | if (!use_json) | |
9301 | vty_out(vty, | |
9302 | "Route Distinguisher: %s\n", | |
9303 | rd); | |
d62a17ae | 9304 | } |
98ce9a06 DS |
9305 | if (type == bgp_show_type_dampend_paths |
9306 | || type == bgp_show_type_damp_neighbor) | |
40381db7 | 9307 | damp_route_vty_out(vty, &rn->p, pi, display, |
a4d82a8a | 9308 | safi, use_json, json_paths); |
98ce9a06 DS |
9309 | else if (type == bgp_show_type_flap_statistics |
9310 | || type == bgp_show_type_flap_neighbor) | |
40381db7 | 9311 | flap_route_vty_out(vty, &rn->p, pi, display, |
a4d82a8a | 9312 | safi, use_json, json_paths); |
98ce9a06 | 9313 | else |
40381db7 | 9314 | route_vty_out(vty, &rn->p, pi, display, safi, |
a4d82a8a | 9315 | json_paths); |
98ce9a06 | 9316 | display++; |
d62a17ae | 9317 | } |
9318 | ||
98ce9a06 DS |
9319 | if (display) { |
9320 | output_count++; | |
9321 | if (!use_json) | |
9322 | continue; | |
9323 | ||
9324 | p = &rn->p; | |
625d2931 PG |
9325 | /* encode prefix */ |
9326 | if (p->family == AF_FLOWSPEC) { | |
9327 | char retstr[BGP_FLOWSPEC_STRING_DISPLAY_MAX]; | |
9328 | ||
9329 | bgp_fs_nlri_get_string((unsigned char *) | |
9330 | p->u.prefix_flowspec.ptr, | |
9331 | p->u.prefix_flowspec | |
9332 | .prefixlen, | |
9333 | retstr, | |
9334 | NLRI_STRING_FORMAT_MIN, | |
9335 | NULL); | |
9336 | if (first) | |
9337 | vty_out(vty, "\"%s/%d\": ", | |
9338 | retstr, | |
9339 | p->u.prefix_flowspec.prefixlen); | |
9340 | else | |
9341 | vty_out(vty, ",\"%s/%d\": ", | |
9342 | retstr, | |
9343 | p->u.prefix_flowspec.prefixlen); | |
9344 | } else { | |
9345 | prefix2str(p, buf2, sizeof(buf2)); | |
9346 | if (first) | |
9347 | vty_out(vty, "\"%s\": ", buf2); | |
9348 | else | |
9349 | vty_out(vty, ",\"%s\": ", buf2); | |
9350 | } | |
98ce9a06 | 9351 | vty_out(vty, "%s", |
23b2a7ef | 9352 | json_object_to_json_string(json_paths)); |
98ce9a06 | 9353 | json_object_free(json_paths); |
449feb8e | 9354 | json_paths = NULL; |
98ce9a06 DS |
9355 | first = 0; |
9356 | } | |
9357 | } | |
9358 | ||
1ae44dfc LB |
9359 | if (output_cum) { |
9360 | output_count += *output_cum; | |
9361 | *output_cum = output_count; | |
9362 | } | |
9363 | if (total_cum) { | |
9364 | total_count += *total_cum; | |
9365 | *total_cum = total_count; | |
9366 | } | |
d62a17ae | 9367 | if (use_json) { |
9386b588 | 9368 | if (rd) { |
a4d82a8a | 9369 | vty_out(vty, " }%s ", (is_last ? "" : ",")); |
9386b588 PZ |
9370 | } |
9371 | if (is_last) { | |
a4d82a8a PZ |
9372 | unsigned long i; |
9373 | for (i = 0; i < *json_header_depth; ++i) | |
9374 | vty_out(vty, " } "); | |
faf6559a | 9375 | vty_out(vty, "\n"); |
9386b588 | 9376 | } |
d62a17ae | 9377 | } else { |
1ae44dfc LB |
9378 | if (is_last) { |
9379 | /* No route is displayed */ | |
9380 | if (output_count == 0) { | |
9381 | if (type == bgp_show_type_normal) | |
9382 | vty_out(vty, | |
9383 | "No BGP prefixes displayed, %ld exist\n", | |
9384 | total_count); | |
9385 | } else | |
d62a17ae | 9386 | vty_out(vty, |
1ae44dfc LB |
9387 | "\nDisplayed %ld routes and %ld total paths\n", |
9388 | output_count, total_count); | |
9389 | } | |
d62a17ae | 9390 | } |
718e3744 | 9391 | |
d62a17ae | 9392 | return CMD_SUCCESS; |
718e3744 | 9393 | } |
9394 | ||
1ae44dfc LB |
9395 | int bgp_show_table_rd(struct vty *vty, struct bgp *bgp, safi_t safi, |
9396 | struct bgp_table *table, struct prefix_rd *prd_match, | |
9f049418 | 9397 | enum bgp_show_type type, void *output_arg, bool use_json) |
1ae44dfc LB |
9398 | { |
9399 | struct bgp_node *rn, *next; | |
9400 | unsigned long output_cum = 0; | |
9401 | unsigned long total_cum = 0; | |
9386b588 | 9402 | unsigned long json_header_depth = 0; |
67009e22 | 9403 | struct bgp_table *itable; |
0136788c LB |
9404 | bool show_msg; |
9405 | ||
9406 | show_msg = (!use_json && type == bgp_show_type_normal); | |
1ae44dfc LB |
9407 | |
9408 | for (rn = bgp_table_top(table); rn; rn = next) { | |
9409 | next = bgp_route_next(rn); | |
9410 | if (prd_match && memcmp(rn->p.u.val, prd_match->val, 8) != 0) | |
9411 | continue; | |
67009e22 DS |
9412 | |
9413 | itable = bgp_node_get_bgp_table_info(rn); | |
9414 | if (itable != NULL) { | |
1ae44dfc | 9415 | struct prefix_rd prd; |
06b9f471 | 9416 | char rd[RD_ADDRSTRLEN]; |
1ae44dfc LB |
9417 | |
9418 | memcpy(&prd, &(rn->p), sizeof(struct prefix_rd)); | |
06b9f471 | 9419 | prefix_rd2str(&prd, rd, sizeof(rd)); |
67009e22 DS |
9420 | bgp_show_table(vty, bgp, safi, itable, type, output_arg, |
9421 | use_json, rd, next == NULL, &output_cum, | |
9422 | &total_cum, &json_header_depth); | |
0136788c LB |
9423 | if (next == NULL) |
9424 | show_msg = false; | |
1ae44dfc LB |
9425 | } |
9426 | } | |
0136788c LB |
9427 | if (show_msg) { |
9428 | if (output_cum == 0) | |
9429 | vty_out(vty, "No BGP prefixes displayed, %ld exist\n", | |
9430 | total_cum); | |
9431 | else | |
9432 | vty_out(vty, | |
9433 | "\nDisplayed %ld routes and %ld total paths\n", | |
9434 | output_cum, total_cum); | |
9435 | } | |
1ae44dfc LB |
9436 | return CMD_SUCCESS; |
9437 | } | |
d62a17ae | 9438 | static int bgp_show(struct vty *vty, struct bgp *bgp, afi_t afi, safi_t safi, |
9f049418 | 9439 | enum bgp_show_type type, void *output_arg, bool use_json) |
fee0f4c6 | 9440 | { |
d62a17ae | 9441 | struct bgp_table *table; |
9386b588 | 9442 | unsigned long json_header_depth = 0; |
fee0f4c6 | 9443 | |
d62a17ae | 9444 | if (bgp == NULL) { |
9445 | bgp = bgp_get_default(); | |
9446 | } | |
fee0f4c6 | 9447 | |
d62a17ae | 9448 | if (bgp == NULL) { |
9449 | if (!use_json) | |
9450 | vty_out(vty, "No BGP process is configured\n"); | |
16307668 RW |
9451 | else |
9452 | vty_out(vty, "{}\n"); | |
d62a17ae | 9453 | return CMD_WARNING; |
9454 | } | |
4dd6177e | 9455 | |
1ae44dfc | 9456 | table = bgp->rib[afi][safi]; |
d62a17ae | 9457 | /* use MPLS and ENCAP specific shows until they are merged */ |
9458 | if (safi == SAFI_MPLS_VPN) { | |
1ae44dfc LB |
9459 | return bgp_show_table_rd(vty, bgp, safi, table, NULL, type, |
9460 | output_arg, use_json); | |
d62a17ae | 9461 | } |
dba3c1d3 PG |
9462 | |
9463 | if (safi == SAFI_FLOWSPEC && type == bgp_show_type_detail) { | |
9464 | return bgp_show_table_flowspec(vty, bgp, afi, table, type, | |
9465 | output_arg, use_json, | |
9466 | 1, NULL, NULL); | |
9467 | } | |
d62a17ae | 9468 | /* labeled-unicast routes live in the unicast table */ |
9469 | else if (safi == SAFI_LABELED_UNICAST) | |
9470 | safi = SAFI_UNICAST; | |
fee0f4c6 | 9471 | |
1ae44dfc | 9472 | return bgp_show_table(vty, bgp, safi, table, type, output_arg, use_json, |
9386b588 | 9473 | NULL, 1, NULL, NULL, &json_header_depth); |
fee0f4c6 | 9474 | } |
9475 | ||
d62a17ae | 9476 | static void bgp_show_all_instances_routes_vty(struct vty *vty, afi_t afi, |
9f049418 | 9477 | safi_t safi, bool use_json) |
f186de26 | 9478 | { |
d62a17ae | 9479 | struct listnode *node, *nnode; |
9480 | struct bgp *bgp; | |
9481 | int is_first = 1; | |
9f049418 | 9482 | bool route_output = false; |
f186de26 | 9483 | |
d62a17ae | 9484 | if (use_json) |
9485 | vty_out(vty, "{\n"); | |
9f689658 | 9486 | |
d62a17ae | 9487 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { |
9f049418 | 9488 | route_output = true; |
d62a17ae | 9489 | if (use_json) { |
9490 | if (!is_first) | |
9491 | vty_out(vty, ",\n"); | |
9492 | else | |
9493 | is_first = 0; | |
9494 | ||
9495 | vty_out(vty, "\"%s\":", | |
9496 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
5742e42b | 9497 | ? VRF_DEFAULT_NAME |
d62a17ae | 9498 | : bgp->name); |
9499 | } else { | |
9500 | vty_out(vty, "\nInstance %s:\n", | |
9501 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
5742e42b | 9502 | ? VRF_DEFAULT_NAME |
d62a17ae | 9503 | : bgp->name); |
9504 | } | |
9505 | bgp_show(vty, bgp, afi, safi, bgp_show_type_normal, NULL, | |
9506 | use_json); | |
9507 | } | |
9f689658 | 9508 | |
d62a17ae | 9509 | if (use_json) |
9510 | vty_out(vty, "}\n"); | |
9f049418 DS |
9511 | else if (!route_output) |
9512 | vty_out(vty, "%% BGP instance not found\n"); | |
f186de26 | 9513 | } |
9514 | ||
718e3744 | 9515 | /* Header of detailed BGP route information */ |
d62a17ae | 9516 | void route_vty_out_detail_header(struct vty *vty, struct bgp *bgp, |
9517 | struct bgp_node *rn, struct prefix_rd *prd, | |
9518 | afi_t afi, safi_t safi, json_object *json) | |
9519 | { | |
40381db7 | 9520 | struct bgp_path_info *pi; |
d62a17ae | 9521 | struct prefix *p; |
9522 | struct peer *peer; | |
9523 | struct listnode *node, *nnode; | |
06b9f471 | 9524 | char buf1[RD_ADDRSTRLEN]; |
d62a17ae | 9525 | char buf2[INET6_ADDRSTRLEN]; |
d62a17ae | 9526 | char buf3[EVPN_ROUTE_STRLEN]; |
0291c246 | 9527 | char prefix_str[BUFSIZ]; |
d62a17ae | 9528 | int count = 0; |
9529 | int best = 0; | |
9530 | int suppress = 0; | |
c5f1e1b2 C |
9531 | int accept_own = 0; |
9532 | int route_filter_translated_v4 = 0; | |
9533 | int route_filter_v4 = 0; | |
9534 | int route_filter_translated_v6 = 0; | |
9535 | int route_filter_v6 = 0; | |
9536 | int llgr_stale = 0; | |
9537 | int no_llgr = 0; | |
9538 | int accept_own_nexthop = 0; | |
9539 | int blackhole = 0; | |
d62a17ae | 9540 | int no_export = 0; |
9541 | int no_advertise = 0; | |
9542 | int local_as = 0; | |
c5f1e1b2 | 9543 | int no_peer = 0; |
d62a17ae | 9544 | int first = 1; |
9545 | int has_valid_label = 0; | |
9546 | mpls_label_t label = 0; | |
9547 | json_object *json_adv_to = NULL; | |
9bedbb1e | 9548 | |
d62a17ae | 9549 | p = &rn->p; |
9550 | has_valid_label = bgp_is_valid_label(&rn->local_label); | |
9551 | ||
9552 | if (has_valid_label) | |
9553 | label = label_pton(&rn->local_label); | |
9554 | ||
9555 | if (json) { | |
9556 | if (has_valid_label) | |
9557 | json_object_int_add(json, "localLabel", label); | |
9558 | ||
60466a63 QY |
9559 | json_object_string_add( |
9560 | json, "prefix", | |
9561 | prefix2str(p, prefix_str, sizeof(prefix_str))); | |
d62a17ae | 9562 | } else { |
d62a17ae | 9563 | if (safi == SAFI_EVPN) |
9564 | vty_out(vty, "BGP routing table entry for %s%s%s\n", | |
06b9f471 | 9565 | prd ? prefix_rd2str(prd, buf1, sizeof(buf1)) |
d62a17ae | 9566 | : "", |
9567 | prd ? ":" : "", | |
9568 | bgp_evpn_route2str((struct prefix_evpn *)p, | |
9569 | buf3, sizeof(buf3))); | |
9570 | else | |
9571 | vty_out(vty, "BGP routing table entry for %s%s%s/%d\n", | |
9572 | ((safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP) | |
9573 | ? prefix_rd2str(prd, buf1, | |
06b9f471 | 9574 | sizeof(buf1)) |
d62a17ae | 9575 | : ""), |
9576 | safi == SAFI_MPLS_VPN ? ":" : "", | |
9577 | inet_ntop(p->family, &p->u.prefix, buf2, | |
9578 | INET6_ADDRSTRLEN), | |
9579 | p->prefixlen); | |
cd1964ff | 9580 | |
d62a17ae | 9581 | if (has_valid_label) |
9582 | vty_out(vty, "Local label: %d\n", label); | |
d62a17ae | 9583 | if (bgp_labeled_safi(safi) && safi != SAFI_EVPN) |
d62a17ae | 9584 | vty_out(vty, "not allocated\n"); |
9585 | } | |
718e3744 | 9586 | |
6f94b685 | 9587 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
d62a17ae | 9588 | count++; |
40381db7 | 9589 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) { |
d62a17ae | 9590 | best = count; |
40381db7 | 9591 | if (pi->extra && pi->extra->suppress) |
d62a17ae | 9592 | suppress = 1; |
cee9c031 | 9593 | |
40381db7 | 9594 | if (pi->attr->community == NULL) |
cee9c031 QY |
9595 | continue; |
9596 | ||
9597 | no_advertise += community_include( | |
40381db7 DS |
9598 | pi->attr->community, COMMUNITY_NO_ADVERTISE); |
9599 | no_export += community_include(pi->attr->community, | |
cee9c031 | 9600 | COMMUNITY_NO_EXPORT); |
40381db7 | 9601 | local_as += community_include(pi->attr->community, |
cee9c031 | 9602 | COMMUNITY_LOCAL_AS); |
40381db7 | 9603 | accept_own += community_include(pi->attr->community, |
cee9c031 QY |
9604 | COMMUNITY_ACCEPT_OWN); |
9605 | route_filter_translated_v4 += community_include( | |
40381db7 | 9606 | pi->attr->community, |
cee9c031 QY |
9607 | COMMUNITY_ROUTE_FILTER_TRANSLATED_v4); |
9608 | route_filter_translated_v6 += community_include( | |
40381db7 | 9609 | pi->attr->community, |
cee9c031 QY |
9610 | COMMUNITY_ROUTE_FILTER_TRANSLATED_v6); |
9611 | route_filter_v4 += community_include( | |
40381db7 | 9612 | pi->attr->community, COMMUNITY_ROUTE_FILTER_v4); |
cee9c031 | 9613 | route_filter_v6 += community_include( |
40381db7 DS |
9614 | pi->attr->community, COMMUNITY_ROUTE_FILTER_v6); |
9615 | llgr_stale += community_include(pi->attr->community, | |
cee9c031 | 9616 | COMMUNITY_LLGR_STALE); |
40381db7 | 9617 | no_llgr += community_include(pi->attr->community, |
cee9c031 QY |
9618 | COMMUNITY_NO_LLGR); |
9619 | accept_own_nexthop += | |
40381db7 | 9620 | community_include(pi->attr->community, |
cee9c031 | 9621 | COMMUNITY_ACCEPT_OWN_NEXTHOP); |
40381db7 | 9622 | blackhole += community_include(pi->attr->community, |
cee9c031 | 9623 | COMMUNITY_BLACKHOLE); |
40381db7 | 9624 | no_peer += community_include(pi->attr->community, |
cee9c031 | 9625 | COMMUNITY_NO_PEER); |
d62a17ae | 9626 | } |
718e3744 | 9627 | } |
718e3744 | 9628 | |
d62a17ae | 9629 | if (!json) { |
9630 | vty_out(vty, "Paths: (%d available", count); | |
9631 | if (best) { | |
9632 | vty_out(vty, ", best #%d", best); | |
b84060bb PG |
9633 | if (safi == SAFI_UNICAST) { |
9634 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
9635 | vty_out(vty, ", table %s", | |
9636 | VRF_DEFAULT_NAME); | |
9637 | else | |
9638 | vty_out(vty, ", vrf %s", | |
9639 | bgp->name); | |
9640 | } | |
d62a17ae | 9641 | } else |
9642 | vty_out(vty, ", no best path"); | |
9643 | ||
c5f1e1b2 C |
9644 | if (accept_own) |
9645 | vty_out(vty, | |
9646 | ", accept own local route exported and imported in different VRF"); | |
9647 | else if (route_filter_translated_v4) | |
9648 | vty_out(vty, | |
9649 | ", mark translated RTs for VPNv4 route filtering"); | |
9650 | else if (route_filter_v4) | |
9651 | vty_out(vty, | |
9652 | ", attach RT as-is for VPNv4 route filtering"); | |
9653 | else if (route_filter_translated_v6) | |
9654 | vty_out(vty, | |
9655 | ", mark translated RTs for VPNv6 route filtering"); | |
9656 | else if (route_filter_v6) | |
9657 | vty_out(vty, | |
9658 | ", attach RT as-is for VPNv6 route filtering"); | |
9659 | else if (llgr_stale) | |
9660 | vty_out(vty, | |
9661 | ", mark routes to be retained for a longer time. Requeres support for Long-lived BGP Graceful Restart"); | |
9662 | else if (no_llgr) | |
9663 | vty_out(vty, | |
9664 | ", mark routes to not be treated according to Long-lived BGP Graceful Restart operations"); | |
9665 | else if (accept_own_nexthop) | |
9666 | vty_out(vty, | |
9667 | ", accept local nexthop"); | |
9668 | else if (blackhole) | |
9669 | vty_out(vty, ", inform peer to blackhole prefix"); | |
d62a17ae | 9670 | else if (no_export) |
9671 | vty_out(vty, ", not advertised to EBGP peer"); | |
c5f1e1b2 C |
9672 | else if (no_advertise) |
9673 | vty_out(vty, ", not advertised to any peer"); | |
d62a17ae | 9674 | else if (local_as) |
9675 | vty_out(vty, ", not advertised outside local AS"); | |
c5f1e1b2 C |
9676 | else if (no_peer) |
9677 | vty_out(vty, | |
9678 | ", inform EBGP peer not to advertise to their EBGP peers"); | |
d62a17ae | 9679 | |
9680 | if (suppress) | |
9681 | vty_out(vty, | |
9682 | ", Advertisements suppressed by an aggregate."); | |
9683 | vty_out(vty, ")\n"); | |
9684 | } | |
718e3744 | 9685 | |
d62a17ae | 9686 | /* If we are not using addpath then we can display Advertised to and |
9687 | * that will | |
9688 | * show what peers we advertised the bestpath to. If we are using | |
9689 | * addpath | |
9690 | * though then we must display Advertised to on a path-by-path basis. */ | |
dcc68b5e | 9691 | if (!bgp_addpath_is_addpath_used(&bgp->tx_addpath, afi, safi)) { |
d62a17ae | 9692 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
9693 | if (bgp_adj_out_lookup(peer, rn, 0)) { | |
9694 | if (json && !json_adv_to) | |
9695 | json_adv_to = json_object_new_object(); | |
9696 | ||
9697 | route_vty_out_advertised_to( | |
9698 | vty, peer, &first, | |
9699 | " Advertised to non peer-group peers:\n ", | |
9700 | json_adv_to); | |
9701 | } | |
9702 | } | |
9703 | ||
9704 | if (json) { | |
9705 | if (json_adv_to) { | |
9706 | json_object_object_add(json, "advertisedTo", | |
9707 | json_adv_to); | |
9708 | } | |
9709 | } else { | |
9710 | if (first) | |
9711 | vty_out(vty, " Not advertised to any peer"); | |
9712 | vty_out(vty, "\n"); | |
9713 | } | |
9714 | } | |
718e3744 | 9715 | } |
9716 | ||
9717 | /* Display specified route of BGP table. */ | |
d62a17ae | 9718 | static int bgp_show_route_in_table(struct vty *vty, struct bgp *bgp, |
9719 | struct bgp_table *rib, const char *ip_str, | |
9720 | afi_t afi, safi_t safi, | |
9721 | struct prefix_rd *prd, int prefix_check, | |
9f049418 | 9722 | enum bgp_path_type pathtype, bool use_json) |
d62a17ae | 9723 | { |
9724 | int ret; | |
9725 | int header; | |
9726 | int display = 0; | |
9727 | struct prefix match; | |
9728 | struct bgp_node *rn; | |
9729 | struct bgp_node *rm; | |
40381db7 | 9730 | struct bgp_path_info *pi; |
d62a17ae | 9731 | struct bgp_table *table; |
9732 | json_object *json = NULL; | |
9733 | json_object *json_paths = NULL; | |
9734 | ||
9735 | /* Check IP address argument. */ | |
9736 | ret = str2prefix(ip_str, &match); | |
9737 | if (!ret) { | |
9738 | vty_out(vty, "address is malformed\n"); | |
9739 | return CMD_WARNING; | |
9740 | } | |
718e3744 | 9741 | |
d62a17ae | 9742 | match.family = afi2family(afi); |
b05a1c8b | 9743 | |
d62a17ae | 9744 | if (use_json) { |
9745 | json = json_object_new_object(); | |
9746 | json_paths = json_object_new_array(); | |
9747 | } | |
718e3744 | 9748 | |
d62a17ae | 9749 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP || safi == SAFI_EVPN) { |
9750 | for (rn = bgp_table_top(rib); rn; rn = bgp_route_next(rn)) { | |
9751 | if (prd && memcmp(rn->p.u.val, prd->val, 8) != 0) | |
9752 | continue; | |
67009e22 DS |
9753 | table = bgp_node_get_bgp_table_info(rn); |
9754 | if (!table) | |
ea47320b | 9755 | continue; |
d62a17ae | 9756 | |
ea47320b DL |
9757 | header = 1; |
9758 | ||
9759 | if ((rm = bgp_node_match(table, &match)) == NULL) | |
9760 | continue; | |
d62a17ae | 9761 | |
ea47320b DL |
9762 | if (prefix_check |
9763 | && rm->p.prefixlen != match.prefixlen) { | |
9764 | bgp_unlock_node(rm); | |
9765 | continue; | |
9766 | } | |
d62a17ae | 9767 | |
6f94b685 DS |
9768 | for (pi = bgp_node_get_bgp_path_info(rm); pi; |
9769 | pi = pi->next) { | |
ea47320b | 9770 | if (header) { |
60466a63 QY |
9771 | route_vty_out_detail_header( |
9772 | vty, bgp, rm, | |
9773 | (struct prefix_rd *)&rn->p, | |
ea47320b DL |
9774 | AFI_IP, safi, json); |
9775 | header = 0; | |
d62a17ae | 9776 | } |
ea47320b DL |
9777 | display++; |
9778 | ||
360660c6 DS |
9779 | if (pathtype == BGP_PATH_SHOW_ALL |
9780 | || (pathtype == BGP_PATH_SHOW_BESTPATH | |
40381db7 | 9781 | && CHECK_FLAG(pi->flags, |
1defdda8 | 9782 | BGP_PATH_SELECTED)) |
360660c6 | 9783 | || (pathtype == BGP_PATH_SHOW_MULTIPATH |
40381db7 | 9784 | && (CHECK_FLAG(pi->flags, |
1defdda8 | 9785 | BGP_PATH_MULTIPATH) |
40381db7 | 9786 | || CHECK_FLAG(pi->flags, |
1defdda8 | 9787 | BGP_PATH_SELECTED)))) |
f08b5ca0 | 9788 | route_vty_out_detail(vty, bgp, rm, |
40381db7 | 9789 | pi, AFI_IP, safi, |
ea47320b | 9790 | json_paths); |
d62a17ae | 9791 | } |
ea47320b DL |
9792 | |
9793 | bgp_unlock_node(rm); | |
d62a17ae | 9794 | } |
98a9dbc7 | 9795 | } else if (safi == SAFI_FLOWSPEC) { |
63a0b7a9 PG |
9796 | display = bgp_flowspec_display_match_per_ip(afi, rib, |
9797 | &match, prefix_check, | |
9798 | vty, | |
9799 | use_json, | |
9800 | json_paths); | |
d62a17ae | 9801 | } else { |
9802 | header = 1; | |
9803 | ||
9804 | if ((rn = bgp_node_match(rib, &match)) != NULL) { | |
9805 | if (!prefix_check | |
9806 | || rn->p.prefixlen == match.prefixlen) { | |
6f94b685 DS |
9807 | for (pi = bgp_node_get_bgp_path_info(rn); pi; |
9808 | pi = pi->next) { | |
d62a17ae | 9809 | if (header) { |
9810 | route_vty_out_detail_header( | |
9811 | vty, bgp, rn, NULL, afi, | |
9812 | safi, json); | |
9813 | header = 0; | |
9814 | } | |
9815 | display++; | |
9816 | ||
360660c6 DS |
9817 | if (pathtype == BGP_PATH_SHOW_ALL |
9818 | || (pathtype | |
9819 | == BGP_PATH_SHOW_BESTPATH | |
d62a17ae | 9820 | && CHECK_FLAG( |
40381db7 | 9821 | pi->flags, |
1defdda8 | 9822 | BGP_PATH_SELECTED)) |
360660c6 DS |
9823 | || (pathtype |
9824 | == BGP_PATH_SHOW_MULTIPATH | |
d62a17ae | 9825 | && (CHECK_FLAG( |
40381db7 | 9826 | pi->flags, |
1defdda8 | 9827 | BGP_PATH_MULTIPATH) |
d62a17ae | 9828 | || CHECK_FLAG( |
40381db7 | 9829 | pi->flags, |
1defdda8 | 9830 | BGP_PATH_SELECTED)))) |
d62a17ae | 9831 | route_vty_out_detail( |
f08b5ca0 | 9832 | vty, bgp, rn, pi, |
d62a17ae | 9833 | afi, safi, json_paths); |
9834 | } | |
9835 | } | |
9836 | ||
9837 | bgp_unlock_node(rn); | |
9838 | } | |
9839 | } | |
e5eee9af | 9840 | |
d62a17ae | 9841 | if (use_json) { |
9842 | if (display) | |
9843 | json_object_object_add(json, "paths", json_paths); | |
9844 | ||
996c9314 LB |
9845 | vty_out(vty, "%s\n", json_object_to_json_string_ext( |
9846 | json, JSON_C_TO_STRING_PRETTY)); | |
d62a17ae | 9847 | json_object_free(json); |
9848 | } else { | |
9849 | if (!display) { | |
9850 | vty_out(vty, "%% Network not in table\n"); | |
9851 | return CMD_WARNING; | |
9852 | } | |
9853 | } | |
b05a1c8b | 9854 | |
d62a17ae | 9855 | return CMD_SUCCESS; |
718e3744 | 9856 | } |
9857 | ||
fee0f4c6 | 9858 | /* Display specified route of Main RIB */ |
d62a17ae | 9859 | static int bgp_show_route(struct vty *vty, struct bgp *bgp, const char *ip_str, |
9860 | afi_t afi, safi_t safi, struct prefix_rd *prd, | |
9861 | int prefix_check, enum bgp_path_type pathtype, | |
9f049418 | 9862 | bool use_json) |
d62a17ae | 9863 | { |
9b86009a | 9864 | if (!bgp) { |
d62a17ae | 9865 | bgp = bgp_get_default(); |
9b86009a RW |
9866 | if (!bgp) { |
9867 | if (!use_json) | |
9868 | vty_out(vty, "No BGP process is configured\n"); | |
16307668 RW |
9869 | else |
9870 | vty_out(vty, "{}\n"); | |
9b86009a RW |
9871 | return CMD_WARNING; |
9872 | } | |
9873 | } | |
d62a17ae | 9874 | |
9875 | /* labeled-unicast routes live in the unicast table */ | |
9876 | if (safi == SAFI_LABELED_UNICAST) | |
9877 | safi = SAFI_UNICAST; | |
9878 | ||
9879 | return bgp_show_route_in_table(vty, bgp, bgp->rib[afi][safi], ip_str, | |
9880 | afi, safi, prd, prefix_check, pathtype, | |
9881 | use_json); | |
9882 | } | |
9883 | ||
9884 | static int bgp_show_lcommunity(struct vty *vty, struct bgp *bgp, int argc, | |
36a206db | 9885 | struct cmd_token **argv, bool exact, afi_t afi, |
9886 | safi_t safi, bool uj) | |
d62a17ae | 9887 | { |
9888 | struct lcommunity *lcom; | |
9889 | struct buffer *b; | |
9890 | int i; | |
9891 | char *str; | |
9892 | int first = 0; | |
9893 | ||
9894 | b = buffer_new(1024); | |
9895 | for (i = 0; i < argc; i++) { | |
9896 | if (first) | |
9897 | buffer_putc(b, ' '); | |
9898 | else { | |
9899 | if (strmatch(argv[i]->text, "AA:BB:CC")) { | |
9900 | first = 1; | |
9901 | buffer_putstr(b, argv[i]->arg); | |
9902 | } | |
9903 | } | |
9904 | } | |
9905 | buffer_putc(b, '\0'); | |
57d187bc | 9906 | |
d62a17ae | 9907 | str = buffer_getstr(b); |
9908 | buffer_free(b); | |
57d187bc | 9909 | |
d62a17ae | 9910 | lcom = lcommunity_str2com(str); |
9911 | XFREE(MTYPE_TMP, str); | |
9912 | if (!lcom) { | |
9913 | vty_out(vty, "%% Large-community malformed\n"); | |
9914 | return CMD_WARNING; | |
9915 | } | |
57d187bc | 9916 | |
36a206db | 9917 | return bgp_show(vty, bgp, afi, safi, |
9918 | (exact ? bgp_show_type_lcommunity_exact | |
9919 | : bgp_show_type_lcommunity), | |
9920 | lcom, uj); | |
57d187bc JS |
9921 | } |
9922 | ||
d62a17ae | 9923 | static int bgp_show_lcommunity_list(struct vty *vty, struct bgp *bgp, |
36a206db | 9924 | const char *lcom, bool exact, afi_t afi, |
9925 | safi_t safi, bool uj) | |
57d187bc | 9926 | { |
d62a17ae | 9927 | struct community_list *list; |
57d187bc | 9928 | |
e237b0d2 | 9929 | list = community_list_lookup(bgp_clist, lcom, 0, |
d62a17ae | 9930 | LARGE_COMMUNITY_LIST_MASTER); |
9931 | if (list == NULL) { | |
9932 | vty_out(vty, "%% %s is not a valid large-community-list name\n", | |
9933 | lcom); | |
9934 | return CMD_WARNING; | |
9935 | } | |
57d187bc | 9936 | |
36a206db | 9937 | return bgp_show(vty, bgp, afi, safi, |
9938 | (exact ? bgp_show_type_lcommunity_list_exact | |
9939 | : bgp_show_type_lcommunity_list), | |
d62a17ae | 9940 | list, uj); |
fee0f4c6 | 9941 | } |
9942 | ||
52951b63 DS |
9943 | DEFUN (show_ip_bgp_large_community_list, |
9944 | show_ip_bgp_large_community_list_cmd, | |
36a206db | 9945 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community-list <(1-500)|WORD> [exact-match] [json]", |
52951b63 DS |
9946 | SHOW_STR |
9947 | IP_STR | |
9948 | BGP_STR | |
9949 | BGP_INSTANCE_HELP_STR | |
9bedbb1e | 9950 | BGP_AFI_HELP_STR |
4dd6177e | 9951 | BGP_SAFI_WITH_LABEL_HELP_STR |
52951b63 DS |
9952 | "Display routes matching the large-community-list\n" |
9953 | "large-community-list number\n" | |
9954 | "large-community-list name\n" | |
36a206db | 9955 | "Exact match of the large-communities\n" |
52951b63 DS |
9956 | JSON_STR) |
9957 | { | |
d62a17ae | 9958 | char *vrf = NULL; |
9959 | afi_t afi = AFI_IP6; | |
9960 | safi_t safi = SAFI_UNICAST; | |
9961 | int idx = 0; | |
36a206db | 9962 | bool exact_match = 0; |
d62a17ae | 9963 | |
9964 | if (argv_find(argv, argc, "ip", &idx)) | |
9965 | afi = AFI_IP; | |
9966 | if (argv_find(argv, argc, "view", &idx) | |
9967 | || argv_find(argv, argc, "vrf", &idx)) | |
9968 | vrf = argv[++idx]->arg; | |
9969 | if (argv_find(argv, argc, "ipv4", &idx) | |
9970 | || argv_find(argv, argc, "ipv6", &idx)) { | |
9971 | afi = strmatch(argv[idx]->text, "ipv6") ? AFI_IP6 : AFI_IP; | |
9972 | if (argv_find(argv, argc, "unicast", &idx) | |
9973 | || argv_find(argv, argc, "multicast", &idx)) | |
9974 | safi = bgp_vty_safi_from_str(argv[idx]->text); | |
9975 | } | |
9976 | ||
9f049418 | 9977 | bool uj = use_json(argc, argv); |
d62a17ae | 9978 | |
9979 | struct bgp *bgp = bgp_lookup_by_name(vrf); | |
9980 | if (bgp == NULL) { | |
9981 | vty_out(vty, "Can't find BGP instance %s\n", vrf); | |
9982 | return CMD_WARNING; | |
9983 | } | |
9984 | ||
9985 | argv_find(argv, argc, "large-community-list", &idx); | |
36a206db | 9986 | |
9987 | const char *clist_number_or_name = argv[++idx]->arg; | |
9988 | ||
9989 | if (++idx < argc && strmatch(argv[idx]->text, "exact-match")) | |
9990 | exact_match = 1; | |
9991 | ||
9992 | return bgp_show_lcommunity_list(vty, bgp, clist_number_or_name, | |
9993 | exact_match, afi, safi, uj); | |
52951b63 DS |
9994 | } |
9995 | DEFUN (show_ip_bgp_large_community, | |
9996 | show_ip_bgp_large_community_cmd, | |
36a206db | 9997 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community [<AA:BB:CC> [exact-match]] [json]", |
52951b63 DS |
9998 | SHOW_STR |
9999 | IP_STR | |
10000 | BGP_STR | |
10001 | BGP_INSTANCE_HELP_STR | |
9bedbb1e | 10002 | BGP_AFI_HELP_STR |
4dd6177e | 10003 | BGP_SAFI_WITH_LABEL_HELP_STR |
52951b63 DS |
10004 | "Display routes matching the large-communities\n" |
10005 | "List of large-community numbers\n" | |
36a206db | 10006 | "Exact match of the large-communities\n" |
52951b63 DS |
10007 | JSON_STR) |
10008 | { | |
d62a17ae | 10009 | char *vrf = NULL; |
10010 | afi_t afi = AFI_IP6; | |
10011 | safi_t safi = SAFI_UNICAST; | |
10012 | int idx = 0; | |
36a206db | 10013 | bool exact_match = 0; |
d62a17ae | 10014 | |
10015 | if (argv_find(argv, argc, "ip", &idx)) | |
10016 | afi = AFI_IP; | |
10017 | if (argv_find(argv, argc, "view", &idx) | |
10018 | || argv_find(argv, argc, "vrf", &idx)) | |
10019 | vrf = argv[++idx]->arg; | |
10020 | if (argv_find(argv, argc, "ipv4", &idx) | |
10021 | || argv_find(argv, argc, "ipv6", &idx)) { | |
10022 | afi = strmatch(argv[idx]->text, "ipv6") ? AFI_IP6 : AFI_IP; | |
10023 | if (argv_find(argv, argc, "unicast", &idx) | |
10024 | || argv_find(argv, argc, "multicast", &idx)) | |
10025 | safi = bgp_vty_safi_from_str(argv[idx]->text); | |
10026 | } | |
10027 | ||
9f049418 | 10028 | bool uj = use_json(argc, argv); |
d62a17ae | 10029 | |
10030 | struct bgp *bgp = bgp_lookup_by_name(vrf); | |
10031 | if (bgp == NULL) { | |
10032 | vty_out(vty, "Can't find BGP instance %s\n", vrf); | |
10033 | return CMD_WARNING; | |
10034 | } | |
10035 | ||
36a206db | 10036 | if (argv_find(argv, argc, "AA:BB:CC", &idx)) { |
10037 | if (argv_find(argv, argc, "exact-match", &idx)) | |
10038 | exact_match = 1; | |
10039 | return bgp_show_lcommunity(vty, bgp, argc, argv, | |
10040 | exact_match, afi, safi, uj); | |
10041 | } else | |
d62a17ae | 10042 | return bgp_show(vty, bgp, afi, safi, |
10043 | bgp_show_type_lcommunity_all, NULL, uj); | |
52951b63 DS |
10044 | } |
10045 | ||
d62a17ae | 10046 | static int bgp_table_stats(struct vty *vty, struct bgp *bgp, afi_t afi, |
10047 | safi_t safi); | |
e01ca200 | 10048 | |
7b2ff250 DW |
10049 | |
10050 | /* BGP route print out function without JSON */ | |
af462945 DS |
10051 | DEFUN (show_ip_bgp, |
10052 | show_ip_bgp_cmd, | |
4dd6177e | 10053 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]\ |
7b2ff250 DW |
10054 | <dampening <parameters>\ |
10055 | |route-map WORD\ | |
10056 | |prefix-list WORD\ | |
10057 | |filter-list WORD\ | |
10058 | |statistics\ | |
7b2ff250 DW |
10059 | |community-list <(1-500)|WORD> [exact-match]\ |
10060 | |A.B.C.D/M longer-prefixes\ | |
10061 | |X:X::X:X/M longer-prefixes\ | |
10062 | >", | |
718e3744 | 10063 | SHOW_STR |
10064 | IP_STR | |
10065 | BGP_STR | |
a636c635 | 10066 | BGP_INSTANCE_HELP_STR |
4f280b15 | 10067 | BGP_AFI_HELP_STR |
4dd6177e | 10068 | BGP_SAFI_WITH_LABEL_HELP_STR |
a636c635 | 10069 | "Display detailed information about dampening\n" |
af462945 | 10070 | "Display detail of configured dampening parameters\n" |
a636c635 DW |
10071 | "Display routes matching the route-map\n" |
10072 | "A route-map to match on\n" | |
10073 | "Display routes conforming to the prefix-list\n" | |
8c3deaae | 10074 | "Prefix-list name\n" |
a636c635 DW |
10075 | "Display routes conforming to the filter-list\n" |
10076 | "Regular expression access list name\n" | |
e01ca200 | 10077 | "BGP RIB advertisement statistics\n" |
a636c635 DW |
10078 | "Display routes matching the community-list\n" |
10079 | "community-list number\n" | |
10080 | "community-list name\n" | |
10081 | "Exact match of the communities\n" | |
0c7b1b01 | 10082 | "IPv4 prefix\n" |
8c3deaae | 10083 | "Display route and more specific routes\n" |
0c7b1b01 | 10084 | "IPv6 prefix\n" |
7b2ff250 | 10085 | "Display route and more specific routes\n") |
718e3744 | 10086 | { |
d62a17ae | 10087 | afi_t afi = AFI_IP6; |
10088 | safi_t safi = SAFI_UNICAST; | |
10089 | int exact_match = 0; | |
d62a17ae | 10090 | struct bgp *bgp = NULL; |
10091 | int idx = 0; | |
10092 | ||
10093 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, | |
9f049418 | 10094 | &bgp, false); |
d62a17ae | 10095 | if (!idx) |
10096 | return CMD_WARNING; | |
10097 | ||
d62a17ae | 10098 | if (argv_find(argv, argc, "dampening", &idx)) { |
7b2ff250 | 10099 | if (argv_find(argv, argc, "parameters", &idx)) |
d62a17ae | 10100 | return bgp_show_dampening_parameters(vty, afi, safi); |
10101 | } | |
c016b6c7 | 10102 | |
d62a17ae | 10103 | if (argv_find(argv, argc, "prefix-list", &idx)) |
10104 | return bgp_show_prefix_list(vty, bgp, argv[idx + 1]->arg, afi, | |
10105 | safi, bgp_show_type_prefix_list); | |
10106 | ||
10107 | if (argv_find(argv, argc, "filter-list", &idx)) | |
10108 | return bgp_show_filter_list(vty, bgp, argv[idx + 1]->arg, afi, | |
10109 | safi, bgp_show_type_filter_list); | |
10110 | ||
10111 | if (argv_find(argv, argc, "statistics", &idx)) | |
10112 | return bgp_table_stats(vty, bgp, afi, safi); | |
10113 | ||
10114 | if (argv_find(argv, argc, "route-map", &idx)) | |
10115 | return bgp_show_route_map(vty, bgp, argv[idx + 1]->arg, afi, | |
10116 | safi, bgp_show_type_route_map); | |
10117 | ||
d62a17ae | 10118 | if (argv_find(argv, argc, "community-list", &idx)) { |
10119 | const char *clist_number_or_name = argv[++idx]->arg; | |
10120 | if (++idx < argc && strmatch(argv[idx]->text, "exact-match")) | |
10121 | exact_match = 1; | |
10122 | return bgp_show_community_list(vty, bgp, clist_number_or_name, | |
10123 | exact_match, afi, safi); | |
10124 | } | |
10125 | /* prefix-longer */ | |
10126 | if (argv_find(argv, argc, "A.B.C.D/M", &idx) | |
10127 | || argv_find(argv, argc, "X:X::X:X/M", &idx)) | |
10128 | return bgp_show_prefix_longer(vty, bgp, argv[idx]->arg, afi, | |
10129 | safi, | |
10130 | bgp_show_type_prefix_longer); | |
10131 | ||
7b2ff250 DW |
10132 | return CMD_WARNING; |
10133 | } | |
10134 | ||
10135 | /* BGP route print out function with JSON */ | |
10136 | DEFUN (show_ip_bgp_json, | |
10137 | show_ip_bgp_json_cmd, | |
10138 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]\ | |
cf4898bc QY |
10139 | [cidr-only\ |
10140 | |dampening <flap-statistics|dampened-paths>\ | |
10141 | |community [AA:NN|local-AS|no-advertise|no-export\ | |
10142 | |graceful-shutdown|no-peer|blackhole|llgr-stale|no-llgr\ | |
10143 | |accept-own|accept-own-nexthop|route-filter-v6\ | |
10144 | |route-filter-v4|route-filter-translated-v6\ | |
10145 | |route-filter-translated-v4] [exact-match]\ | |
10146 | ] [json]", | |
7b2ff250 DW |
10147 | SHOW_STR |
10148 | IP_STR | |
10149 | BGP_STR | |
10150 | BGP_INSTANCE_HELP_STR | |
10151 | BGP_AFI_HELP_STR | |
10152 | BGP_SAFI_WITH_LABEL_HELP_STR | |
10153 | "Display only routes with non-natural netmasks\n" | |
10154 | "Display detailed information about dampening\n" | |
10155 | "Display flap statistics of routes\n" | |
10156 | "Display paths suppressed due to dampening\n" | |
10157 | "Display routes matching the communities\n" | |
d0086e8e AD |
10158 | COMMUNITY_AANN_STR |
10159 | "Do not send outside local AS (well-known community)\n" | |
10160 | "Do not advertise to any peer (well-known community)\n" | |
10161 | "Do not export to next AS (well-known community)\n" | |
10162 | "Graceful shutdown (well-known community)\n" | |
cf4898bc QY |
10163 | "Do not export to any peer (well-known community)\n" |
10164 | "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n" | |
10165 | "Staled Long-lived Graceful Restart VPN route (well-known community)\n" | |
10166 | "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n" | |
10167 | "Should accept local VPN route if exported and imported into different VRF (well-known community)\n" | |
10168 | "Should accept VPN route with local nexthop (well-known community)\n" | |
10169 | "RT VPNv6 route filtering (well-known community)\n" | |
10170 | "RT VPNv4 route filtering (well-known community)\n" | |
10171 | "RT translated VPNv6 route filtering (well-known community)\n" | |
10172 | "RT translated VPNv4 route filtering (well-known community)\n" | |
d0086e8e | 10173 | "Exact match of the communities\n" |
7b2ff250 DW |
10174 | JSON_STR) |
10175 | { | |
10176 | afi_t afi = AFI_IP6; | |
10177 | safi_t safi = SAFI_UNICAST; | |
10178 | enum bgp_show_type sh_type = bgp_show_type_normal; | |
10179 | struct bgp *bgp = NULL; | |
10180 | int idx = 0; | |
d0086e8e | 10181 | int exact_match = 0; |
9f049418 DS |
10182 | bool uj = use_json(argc, argv); |
10183 | ||
10184 | if (uj) | |
10185 | argc--; | |
7b2ff250 DW |
10186 | |
10187 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, | |
9f049418 | 10188 | &bgp, uj); |
7b2ff250 DW |
10189 | if (!idx) |
10190 | return CMD_WARNING; | |
10191 | ||
7b2ff250 DW |
10192 | if (argv_find(argv, argc, "cidr-only", &idx)) |
10193 | return bgp_show(vty, bgp, afi, safi, bgp_show_type_cidr_only, | |
10194 | NULL, uj); | |
10195 | ||
10196 | if (argv_find(argv, argc, "dampening", &idx)) { | |
10197 | if (argv_find(argv, argc, "dampened-paths", &idx)) | |
10198 | return bgp_show(vty, bgp, afi, safi, | |
10199 | bgp_show_type_dampend_paths, NULL, uj); | |
10200 | else if (argv_find(argv, argc, "flap-statistics", &idx)) | |
10201 | return bgp_show(vty, bgp, afi, safi, | |
10202 | bgp_show_type_flap_statistics, NULL, | |
10203 | uj); | |
10204 | } | |
10205 | ||
10206 | if (argv_find(argv, argc, "community", &idx)) { | |
79bc257a | 10207 | char *maybecomm = NULL; |
cf4898bc | 10208 | char *community = NULL; |
d0086e8e | 10209 | |
79bc257a RW |
10210 | if (idx + 1 < argc) { |
10211 | if (argv[idx + 1]->type == VARIABLE_TKN) | |
10212 | maybecomm = argv[idx + 1]->arg; | |
10213 | else | |
10214 | maybecomm = argv[idx + 1]->text; | |
10215 | } | |
10216 | ||
cf4898bc QY |
10217 | if (maybecomm && !strmatch(maybecomm, "json") |
10218 | && !strmatch(maybecomm, "exact-match")) | |
10219 | community = maybecomm; | |
d0086e8e | 10220 | |
cf4898bc QY |
10221 | if (argv_find(argv, argc, "exact-match", &idx)) |
10222 | exact_match = 1; | |
d0086e8e | 10223 | |
cf4898bc QY |
10224 | if (community) |
10225 | return bgp_show_community(vty, bgp, community, | |
10226 | exact_match, afi, safi, uj); | |
10227 | else | |
d0086e8e | 10228 | return (bgp_show(vty, bgp, afi, safi, |
cf4898bc QY |
10229 | bgp_show_type_community_all, NULL, |
10230 | uj)); | |
7b2ff250 | 10231 | } |
d0086e8e | 10232 | |
1ae44dfc | 10233 | return bgp_show(vty, bgp, afi, safi, sh_type, NULL, uj); |
a636c635 | 10234 | } |
47fc97cc | 10235 | |
718e3744 | 10236 | DEFUN (show_ip_bgp_route, |
10237 | show_ip_bgp_route_cmd, | |
4dd6177e | 10238 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]]" |
ae19d7dd | 10239 | "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]", |
718e3744 | 10240 | SHOW_STR |
10241 | IP_STR | |
10242 | BGP_STR | |
a636c635 | 10243 | BGP_INSTANCE_HELP_STR |
4f280b15 | 10244 | BGP_AFI_HELP_STR |
4dd6177e | 10245 | BGP_SAFI_WITH_LABEL_HELP_STR |
b05a1c8b | 10246 | "Network in the BGP routing table to display\n" |
0c7b1b01 | 10247 | "IPv4 prefix\n" |
8c3deaae | 10248 | "Network in the BGP routing table to display\n" |
0c7b1b01 | 10249 | "IPv6 prefix\n" |
4092b06c | 10250 | "Display only the bestpath\n" |
b05a1c8b | 10251 | "Display only multipaths\n" |
9973d184 | 10252 | JSON_STR) |
4092b06c | 10253 | { |
d62a17ae | 10254 | int prefix_check = 0; |
ae19d7dd | 10255 | |
d62a17ae | 10256 | afi_t afi = AFI_IP6; |
10257 | safi_t safi = SAFI_UNICAST; | |
10258 | char *prefix = NULL; | |
10259 | struct bgp *bgp = NULL; | |
10260 | enum bgp_path_type path_type; | |
9f049418 | 10261 | bool uj = use_json(argc, argv); |
b05a1c8b | 10262 | |
d62a17ae | 10263 | int idx = 0; |
ae19d7dd | 10264 | |
d62a17ae | 10265 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, |
9f049418 | 10266 | &bgp, uj); |
d62a17ae | 10267 | if (!idx) |
10268 | return CMD_WARNING; | |
c41247f5 | 10269 | |
d62a17ae | 10270 | if (!bgp) { |
10271 | vty_out(vty, | |
10272 | "Specified 'all' vrf's but this command currently only works per view/vrf\n"); | |
10273 | return CMD_WARNING; | |
10274 | } | |
a636c635 | 10275 | |
d62a17ae | 10276 | /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */ |
10277 | if (argv_find(argv, argc, "A.B.C.D", &idx) | |
10278 | || argv_find(argv, argc, "X:X::X:X", &idx)) | |
10279 | prefix_check = 0; | |
10280 | else if (argv_find(argv, argc, "A.B.C.D/M", &idx) | |
10281 | || argv_find(argv, argc, "X:X::X:X/M", &idx)) | |
10282 | prefix_check = 1; | |
10283 | ||
10284 | if ((argv[idx]->type == IPV6_TKN || argv[idx]->type == IPV6_PREFIX_TKN) | |
10285 | && afi != AFI_IP6) { | |
10286 | vty_out(vty, | |
10287 | "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n"); | |
10288 | return CMD_WARNING; | |
10289 | } | |
10290 | if ((argv[idx]->type == IPV4_TKN || argv[idx]->type == IPV4_PREFIX_TKN) | |
10291 | && afi != AFI_IP) { | |
10292 | vty_out(vty, | |
10293 | "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n"); | |
10294 | return CMD_WARNING; | |
10295 | } | |
10296 | ||
10297 | prefix = argv[idx]->arg; | |
10298 | ||
10299 | /* [<bestpath|multipath>] */ | |
10300 | if (argv_find(argv, argc, "bestpath", &idx)) | |
360660c6 | 10301 | path_type = BGP_PATH_SHOW_BESTPATH; |
d62a17ae | 10302 | else if (argv_find(argv, argc, "multipath", &idx)) |
360660c6 | 10303 | path_type = BGP_PATH_SHOW_MULTIPATH; |
d62a17ae | 10304 | else |
360660c6 | 10305 | path_type = BGP_PATH_SHOW_ALL; |
a636c635 | 10306 | |
d62a17ae | 10307 | return bgp_show_route(vty, bgp, prefix, afi, safi, NULL, prefix_check, |
10308 | path_type, uj); | |
4092b06c DS |
10309 | } |
10310 | ||
8c3deaae QY |
10311 | DEFUN (show_ip_bgp_regexp, |
10312 | show_ip_bgp_regexp_cmd, | |
4dd6177e | 10313 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] regexp REGEX...", |
8c3deaae QY |
10314 | SHOW_STR |
10315 | IP_STR | |
10316 | BGP_STR | |
b00b230a | 10317 | BGP_INSTANCE_HELP_STR |
4f280b15 | 10318 | BGP_AFI_HELP_STR |
4dd6177e | 10319 | BGP_SAFI_WITH_LABEL_HELP_STR |
8c3deaae | 10320 | "Display routes matching the AS path regular expression\n" |
a818ea74 | 10321 | "A regular-expression (1234567890_^|[,{}() ]$*+.?-\\) to match the BGP AS paths\n") |
8c3deaae | 10322 | { |
d62a17ae | 10323 | afi_t afi = AFI_IP6; |
10324 | safi_t safi = SAFI_UNICAST; | |
10325 | struct bgp *bgp = NULL; | |
8c3deaae | 10326 | |
d62a17ae | 10327 | int idx = 0; |
10328 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, | |
9f049418 | 10329 | &bgp, false); |
d62a17ae | 10330 | if (!idx) |
10331 | return CMD_WARNING; | |
8c3deaae | 10332 | |
d62a17ae | 10333 | // get index of regex |
10334 | argv_find(argv, argc, "regexp", &idx); | |
10335 | idx++; | |
8c3deaae | 10336 | |
d62a17ae | 10337 | char *regstr = argv_concat(argv, argc, idx); |
e889891d | 10338 | int rc = bgp_show_regexp(vty, bgp, (const char *)regstr, afi, safi, |
d62a17ae | 10339 | bgp_show_type_regexp); |
10340 | XFREE(MTYPE_TMP, regstr); | |
10341 | return rc; | |
8c3deaae QY |
10342 | } |
10343 | ||
a636c635 DW |
10344 | DEFUN (show_ip_bgp_instance_all, |
10345 | show_ip_bgp_instance_all_cmd, | |
4dd6177e | 10346 | "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] [json]", |
4092b06c | 10347 | SHOW_STR |
a636c635 | 10348 | IP_STR |
4092b06c | 10349 | BGP_STR |
a636c635 | 10350 | BGP_INSTANCE_ALL_HELP_STR |
4f280b15 | 10351 | BGP_AFI_HELP_STR |
4dd6177e | 10352 | BGP_SAFI_WITH_LABEL_HELP_STR |
9973d184 | 10353 | JSON_STR) |
4092b06c | 10354 | { |
d62a17ae | 10355 | afi_t afi = AFI_IP; |
10356 | safi_t safi = SAFI_UNICAST; | |
10357 | struct bgp *bgp = NULL; | |
d62a17ae | 10358 | int idx = 0; |
9f049418 | 10359 | bool uj = use_json(argc, argv); |
ae19d7dd | 10360 | |
d62a17ae | 10361 | if (uj) |
10362 | argc--; | |
e3e29b32 | 10363 | |
9f049418 DS |
10364 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, |
10365 | &bgp, uj); | |
10366 | if (!idx) | |
10367 | return CMD_WARNING; | |
10368 | ||
d62a17ae | 10369 | bgp_show_all_instances_routes_vty(vty, afi, safi, uj); |
10370 | return CMD_SUCCESS; | |
e3e29b32 LB |
10371 | } |
10372 | ||
a4d82a8a PZ |
10373 | static int bgp_show_regexp(struct vty *vty, struct bgp *bgp, const char *regstr, |
10374 | afi_t afi, safi_t safi, enum bgp_show_type type) | |
718e3744 | 10375 | { |
d62a17ae | 10376 | regex_t *regex; |
10377 | int rc; | |
e3e29b32 | 10378 | |
c3900853 DA |
10379 | if (!config_bgp_aspath_validate(regstr)) { |
10380 | vty_out(vty, "Invalid character in as-path access-list %s\n", | |
10381 | regstr); | |
10382 | return CMD_WARNING_CONFIG_FAILED; | |
10383 | } | |
10384 | ||
d62a17ae | 10385 | regex = bgp_regcomp(regstr); |
10386 | if (!regex) { | |
10387 | vty_out(vty, "Can't compile regexp %s\n", regstr); | |
10388 | return CMD_WARNING; | |
10389 | } | |
a636c635 | 10390 | |
e889891d | 10391 | rc = bgp_show(vty, bgp, afi, safi, type, regex, 0); |
d62a17ae | 10392 | bgp_regex_free(regex); |
10393 | return rc; | |
e3e29b32 LB |
10394 | } |
10395 | ||
d62a17ae | 10396 | static int bgp_show_prefix_list(struct vty *vty, struct bgp *bgp, |
10397 | const char *prefix_list_str, afi_t afi, | |
10398 | safi_t safi, enum bgp_show_type type) | |
e3e29b32 | 10399 | { |
d62a17ae | 10400 | struct prefix_list *plist; |
718e3744 | 10401 | |
d62a17ae | 10402 | plist = prefix_list_lookup(afi, prefix_list_str); |
10403 | if (plist == NULL) { | |
10404 | vty_out(vty, "%% %s is not a valid prefix-list name\n", | |
10405 | prefix_list_str); | |
10406 | return CMD_WARNING; | |
10407 | } | |
718e3744 | 10408 | |
d62a17ae | 10409 | return bgp_show(vty, bgp, afi, safi, type, plist, 0); |
4092b06c DS |
10410 | } |
10411 | ||
d62a17ae | 10412 | static int bgp_show_filter_list(struct vty *vty, struct bgp *bgp, |
10413 | const char *filter, afi_t afi, safi_t safi, | |
10414 | enum bgp_show_type type) | |
4092b06c | 10415 | { |
d62a17ae | 10416 | struct as_list *as_list; |
718e3744 | 10417 | |
d62a17ae | 10418 | as_list = as_list_lookup(filter); |
10419 | if (as_list == NULL) { | |
10420 | vty_out(vty, "%% %s is not a valid AS-path access-list name\n", | |
10421 | filter); | |
10422 | return CMD_WARNING; | |
10423 | } | |
a636c635 | 10424 | |
d62a17ae | 10425 | return bgp_show(vty, bgp, afi, safi, type, as_list, 0); |
718e3744 | 10426 | } |
10427 | ||
d62a17ae | 10428 | static int bgp_show_route_map(struct vty *vty, struct bgp *bgp, |
10429 | const char *rmap_str, afi_t afi, safi_t safi, | |
10430 | enum bgp_show_type type) | |
718e3744 | 10431 | { |
d62a17ae | 10432 | struct route_map *rmap; |
bb46e94f | 10433 | |
d62a17ae | 10434 | rmap = route_map_lookup_by_name(rmap_str); |
10435 | if (!rmap) { | |
10436 | vty_out(vty, "%% %s is not a valid route-map name\n", rmap_str); | |
10437 | return CMD_WARNING; | |
10438 | } | |
10439 | ||
10440 | return bgp_show(vty, bgp, afi, safi, type, rmap, 0); | |
10441 | } | |
10442 | ||
7f323236 DW |
10443 | static int bgp_show_community(struct vty *vty, struct bgp *bgp, |
10444 | const char *comstr, int exact, afi_t afi, | |
9f049418 | 10445 | safi_t safi, bool use_json) |
d62a17ae | 10446 | { |
10447 | struct community *com; | |
d62a17ae | 10448 | int ret = 0; |
10449 | ||
7f323236 | 10450 | com = community_str2com(comstr); |
d62a17ae | 10451 | if (!com) { |
7f323236 | 10452 | vty_out(vty, "%% Community malformed: %s\n", comstr); |
d62a17ae | 10453 | return CMD_WARNING; |
10454 | } | |
10455 | ||
10456 | ret = bgp_show(vty, bgp, afi, safi, | |
10457 | (exact ? bgp_show_type_community_exact | |
10458 | : bgp_show_type_community), | |
d0086e8e | 10459 | com, use_json); |
3c1f53de | 10460 | community_free(&com); |
46c3ce83 | 10461 | |
d62a17ae | 10462 | return ret; |
718e3744 | 10463 | } |
10464 | ||
d62a17ae | 10465 | static int bgp_show_community_list(struct vty *vty, struct bgp *bgp, |
10466 | const char *com, int exact, afi_t afi, | |
10467 | safi_t safi) | |
50ef26d4 | 10468 | { |
d62a17ae | 10469 | struct community_list *list; |
50ef26d4 | 10470 | |
e237b0d2 | 10471 | list = community_list_lookup(bgp_clist, com, 0, COMMUNITY_LIST_MASTER); |
d62a17ae | 10472 | if (list == NULL) { |
10473 | vty_out(vty, "%% %s is not a valid community-list name\n", com); | |
10474 | return CMD_WARNING; | |
10475 | } | |
718e3744 | 10476 | |
d62a17ae | 10477 | return bgp_show(vty, bgp, afi, safi, |
10478 | (exact ? bgp_show_type_community_list_exact | |
10479 | : bgp_show_type_community_list), | |
10480 | list, 0); | |
50ef26d4 | 10481 | } |
10482 | ||
d62a17ae | 10483 | static int bgp_show_prefix_longer(struct vty *vty, struct bgp *bgp, |
10484 | const char *prefix, afi_t afi, safi_t safi, | |
10485 | enum bgp_show_type type) | |
718e3744 | 10486 | { |
d62a17ae | 10487 | int ret; |
10488 | struct prefix *p; | |
47fc97cc | 10489 | |
d62a17ae | 10490 | p = prefix_new(); |
95cbbd2a | 10491 | |
d62a17ae | 10492 | ret = str2prefix(prefix, p); |
10493 | if (!ret) { | |
10494 | vty_out(vty, "%% Malformed Prefix\n"); | |
10495 | return CMD_WARNING; | |
10496 | } | |
47e9b292 | 10497 | |
d62a17ae | 10498 | ret = bgp_show(vty, bgp, afi, safi, type, p, 0); |
10499 | prefix_free(p); | |
10500 | return ret; | |
10501 | } | |
10502 | ||
d62a17ae | 10503 | enum bgp_stats { |
10504 | BGP_STATS_MAXBITLEN = 0, | |
10505 | BGP_STATS_RIB, | |
10506 | BGP_STATS_PREFIXES, | |
10507 | BGP_STATS_TOTPLEN, | |
10508 | BGP_STATS_UNAGGREGATEABLE, | |
10509 | BGP_STATS_MAX_AGGREGATEABLE, | |
10510 | BGP_STATS_AGGREGATES, | |
10511 | BGP_STATS_SPACE, | |
10512 | BGP_STATS_ASPATH_COUNT, | |
10513 | BGP_STATS_ASPATH_MAXHOPS, | |
10514 | BGP_STATS_ASPATH_TOTHOPS, | |
10515 | BGP_STATS_ASPATH_MAXSIZE, | |
10516 | BGP_STATS_ASPATH_TOTSIZE, | |
10517 | BGP_STATS_ASN_HIGHEST, | |
10518 | BGP_STATS_MAX, | |
a636c635 | 10519 | }; |
2815e61f | 10520 | |
d62a17ae | 10521 | static const char *table_stats_strs[] = { |
9d303b37 DL |
10522 | [BGP_STATS_PREFIXES] = "Total Prefixes", |
10523 | [BGP_STATS_TOTPLEN] = "Average prefix length", | |
10524 | [BGP_STATS_RIB] = "Total Advertisements", | |
10525 | [BGP_STATS_UNAGGREGATEABLE] = "Unaggregateable prefixes", | |
10526 | [BGP_STATS_MAX_AGGREGATEABLE] = | |
10527 | "Maximum aggregateable prefixes", | |
10528 | [BGP_STATS_AGGREGATES] = "BGP Aggregate advertisements", | |
10529 | [BGP_STATS_SPACE] = "Address space advertised", | |
10530 | [BGP_STATS_ASPATH_COUNT] = "Advertisements with paths", | |
10531 | [BGP_STATS_ASPATH_MAXHOPS] = "Longest AS-Path (hops)", | |
10532 | [BGP_STATS_ASPATH_MAXSIZE] = "Largest AS-Path (bytes)", | |
10533 | [BGP_STATS_ASPATH_TOTHOPS] = "Average AS-Path length (hops)", | |
10534 | [BGP_STATS_ASPATH_TOTSIZE] = "Average AS-Path size (bytes)", | |
10535 | [BGP_STATS_ASN_HIGHEST] = "Highest public ASN", | |
10536 | [BGP_STATS_MAX] = NULL, | |
a636c635 | 10537 | }; |
2815e61f | 10538 | |
d62a17ae | 10539 | struct bgp_table_stats { |
10540 | struct bgp_table *table; | |
10541 | unsigned long long counts[BGP_STATS_MAX]; | |
8d0ab76d | 10542 | double total_space; |
ff7924f6 PJ |
10543 | }; |
10544 | ||
a636c635 DW |
10545 | #if 0 |
10546 | #define TALLY_SIGFIG 100000 | |
10547 | static unsigned long | |
10548 | ravg_tally (unsigned long count, unsigned long oldavg, unsigned long newval) | |
ff7924f6 | 10549 | { |
a636c635 DW |
10550 | unsigned long newtot = (count-1) * oldavg + (newval * TALLY_SIGFIG); |
10551 | unsigned long res = (newtot * TALLY_SIGFIG) / count; | |
10552 | unsigned long ret = newtot / count; | |
07d0c4ed | 10553 | |
a636c635 DW |
10554 | if ((res % TALLY_SIGFIG) > (TALLY_SIGFIG/2)) |
10555 | return ret + 1; | |
10556 | else | |
10557 | return ret; | |
10558 | } | |
10559 | #endif | |
ff7924f6 | 10560 | |
9c14ec72 RW |
10561 | static void bgp_table_stats_rn(struct bgp_node *rn, struct bgp_node *top, |
10562 | struct bgp_table_stats *ts, unsigned int space) | |
2815e61f | 10563 | { |
9c14ec72 RW |
10564 | struct bgp_node *prn = bgp_node_parent_nolock(rn); |
10565 | struct bgp_path_info *pi; | |
d62a17ae | 10566 | |
9c14ec72 RW |
10567 | if (rn == top) |
10568 | return; | |
d62a17ae | 10569 | |
9c14ec72 RW |
10570 | if (!bgp_node_has_bgp_path_info_data(rn)) |
10571 | return; | |
d62a17ae | 10572 | |
9c14ec72 RW |
10573 | ts->counts[BGP_STATS_PREFIXES]++; |
10574 | ts->counts[BGP_STATS_TOTPLEN] += rn->p.prefixlen; | |
ff7924f6 | 10575 | |
a636c635 DW |
10576 | #if 0 |
10577 | ts->counts[BGP_STATS_AVGPLEN] | |
10578 | = ravg_tally (ts->counts[BGP_STATS_PREFIXES], | |
10579 | ts->counts[BGP_STATS_AVGPLEN], | |
10580 | rn->p.prefixlen); | |
10581 | #endif | |
d62a17ae | 10582 | |
9c14ec72 RW |
10583 | /* check if the prefix is included by any other announcements */ |
10584 | while (prn && !bgp_node_has_bgp_path_info_data(prn)) | |
10585 | prn = bgp_node_parent_nolock(prn); | |
d62a17ae | 10586 | |
9c14ec72 RW |
10587 | if (prn == NULL || prn == top) { |
10588 | ts->counts[BGP_STATS_UNAGGREGATEABLE]++; | |
10589 | /* announced address space */ | |
10590 | if (space) | |
10591 | ts->total_space += pow(2.0, space - rn->p.prefixlen); | |
10592 | } else if (bgp_node_has_bgp_path_info_data(prn)) | |
10593 | ts->counts[BGP_STATS_MAX_AGGREGATEABLE]++; | |
d62a17ae | 10594 | |
9c14ec72 RW |
10595 | |
10596 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { | |
10597 | ts->counts[BGP_STATS_RIB]++; | |
10598 | ||
10599 | if (pi->attr | |
10600 | && (CHECK_FLAG(pi->attr->flag, | |
10601 | ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE)))) | |
10602 | ts->counts[BGP_STATS_AGGREGATES]++; | |
10603 | ||
10604 | /* as-path stats */ | |
10605 | if (pi->attr && pi->attr->aspath) { | |
10606 | unsigned int hops = aspath_count_hops(pi->attr->aspath); | |
10607 | unsigned int size = aspath_size(pi->attr->aspath); | |
10608 | as_t highest = aspath_highest(pi->attr->aspath); | |
10609 | ||
10610 | ts->counts[BGP_STATS_ASPATH_COUNT]++; | |
10611 | ||
10612 | if (hops > ts->counts[BGP_STATS_ASPATH_MAXHOPS]) | |
10613 | ts->counts[BGP_STATS_ASPATH_MAXHOPS] = hops; | |
10614 | ||
10615 | if (size > ts->counts[BGP_STATS_ASPATH_MAXSIZE]) | |
10616 | ts->counts[BGP_STATS_ASPATH_MAXSIZE] = size; | |
10617 | ||
10618 | ts->counts[BGP_STATS_ASPATH_TOTHOPS] += hops; | |
10619 | ts->counts[BGP_STATS_ASPATH_TOTSIZE] += size; | |
a636c635 | 10620 | #if 0 |
07d0c4ed | 10621 | ts->counts[BGP_STATS_ASPATH_AVGHOPS] |
a636c635 DW |
10622 | = ravg_tally (ts->counts[BGP_STATS_ASPATH_COUNT], |
10623 | ts->counts[BGP_STATS_ASPATH_AVGHOPS], | |
10624 | hops); | |
10625 | ts->counts[BGP_STATS_ASPATH_AVGSIZE] | |
10626 | = ravg_tally (ts->counts[BGP_STATS_ASPATH_COUNT], | |
10627 | ts->counts[BGP_STATS_ASPATH_AVGSIZE], | |
10628 | size); | |
10629 | #endif | |
9c14ec72 RW |
10630 | if (highest > ts->counts[BGP_STATS_ASN_HIGHEST]) |
10631 | ts->counts[BGP_STATS_ASN_HIGHEST] = highest; | |
10632 | } | |
10633 | } | |
10634 | } | |
10635 | ||
10636 | static int bgp_table_stats_walker(struct thread *t) | |
10637 | { | |
10638 | struct bgp_node *rn, *nrn; | |
10639 | struct bgp_node *top; | |
10640 | struct bgp_table_stats *ts = THREAD_ARG(t); | |
10641 | unsigned int space = 0; | |
10642 | ||
10643 | if (!(top = bgp_table_top(ts->table))) | |
10644 | return 0; | |
10645 | ||
10646 | switch (ts->table->afi) { | |
10647 | case AFI_IP: | |
10648 | space = IPV4_MAX_BITLEN; | |
10649 | break; | |
10650 | case AFI_IP6: | |
10651 | space = IPV6_MAX_BITLEN; | |
10652 | break; | |
10653 | default: | |
10654 | return 0; | |
10655 | } | |
10656 | ||
10657 | ts->counts[BGP_STATS_MAXBITLEN] = space; | |
10658 | ||
10659 | for (rn = top; rn; rn = bgp_route_next(rn)) { | |
10660 | if (ts->table->safi == SAFI_MPLS_VPN) { | |
10661 | struct bgp_table *table; | |
10662 | ||
10663 | table = bgp_node_get_bgp_table_info(rn); | |
10664 | if (!table) | |
10665 | continue; | |
10666 | ||
10667 | top = bgp_table_top(table); | |
10668 | for (nrn = bgp_table_top(table); nrn; | |
10669 | nrn = bgp_route_next(nrn)) | |
10670 | bgp_table_stats_rn(nrn, top, ts, space); | |
10671 | } else { | |
10672 | bgp_table_stats_rn(rn, top, ts, space); | |
d62a17ae | 10673 | } |
10674 | } | |
9c14ec72 | 10675 | |
d62a17ae | 10676 | return 0; |
2815e61f | 10677 | } |
ff7924f6 | 10678 | |
d62a17ae | 10679 | static int bgp_table_stats(struct vty *vty, struct bgp *bgp, afi_t afi, |
10680 | safi_t safi) | |
2815e61f | 10681 | { |
d62a17ae | 10682 | struct bgp_table_stats ts; |
10683 | unsigned int i; | |
019386c2 | 10684 | |
d62a17ae | 10685 | if (!bgp->rib[afi][safi]) { |
10686 | vty_out(vty, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n", | |
10687 | afi, safi); | |
10688 | return CMD_WARNING; | |
10689 | } | |
019386c2 | 10690 | |
d62a17ae | 10691 | vty_out(vty, "BGP %s RIB statistics\n", afi_safi_print(afi, safi)); |
019386c2 | 10692 | |
d62a17ae | 10693 | /* labeled-unicast routes live in the unicast table */ |
10694 | if (safi == SAFI_LABELED_UNICAST) | |
10695 | safi = SAFI_UNICAST; | |
019386c2 | 10696 | |
d62a17ae | 10697 | memset(&ts, 0, sizeof(ts)); |
10698 | ts.table = bgp->rib[afi][safi]; | |
10699 | thread_execute(bm->master, bgp_table_stats_walker, &ts, 0); | |
ff7924f6 | 10700 | |
d62a17ae | 10701 | for (i = 0; i < BGP_STATS_MAX; i++) { |
10702 | if (!table_stats_strs[i]) | |
10703 | continue; | |
10704 | ||
10705 | switch (i) { | |
a636c635 DW |
10706 | #if 0 |
10707 | case BGP_STATS_ASPATH_AVGHOPS: | |
10708 | case BGP_STATS_ASPATH_AVGSIZE: | |
10709 | case BGP_STATS_AVGPLEN: | |
10710 | vty_out (vty, "%-30s: ", table_stats_strs[i]); | |
10711 | vty_out (vty, "%12.2f", | |
10712 | (float)ts.counts[i] / (float)TALLY_SIGFIG); | |
10713 | break; | |
10714 | #endif | |
d62a17ae | 10715 | case BGP_STATS_ASPATH_TOTHOPS: |
10716 | case BGP_STATS_ASPATH_TOTSIZE: | |
10717 | vty_out(vty, "%-30s: ", table_stats_strs[i]); | |
10718 | vty_out(vty, "%12.2f", | |
10719 | ts.counts[i] | |
10720 | ? (float)ts.counts[i] | |
10721 | / (float)ts.counts | |
10722 | [BGP_STATS_ASPATH_COUNT] | |
10723 | : 0); | |
10724 | break; | |
10725 | case BGP_STATS_TOTPLEN: | |
10726 | vty_out(vty, "%-30s: ", table_stats_strs[i]); | |
10727 | vty_out(vty, "%12.2f", | |
10728 | ts.counts[i] | |
10729 | ? (float)ts.counts[i] | |
10730 | / (float)ts.counts | |
10731 | [BGP_STATS_PREFIXES] | |
10732 | : 0); | |
10733 | break; | |
10734 | case BGP_STATS_SPACE: | |
10735 | vty_out(vty, "%-30s: ", table_stats_strs[i]); | |
8d0ab76d DL |
10736 | vty_out(vty, "%12g\n", ts.total_space); |
10737 | ||
10738 | if (afi == AFI_IP6) { | |
10739 | vty_out(vty, "%30s: ", "/32 equivalent "); | |
10740 | vty_out(vty, "%12g\n", | |
a4d82a8a | 10741 | ts.total_space * pow(2.0, -128 + 32)); |
8d0ab76d DL |
10742 | vty_out(vty, "%30s: ", "/48 equivalent "); |
10743 | vty_out(vty, "%12g\n", | |
a4d82a8a | 10744 | ts.total_space * pow(2.0, -128 + 48)); |
8d0ab76d DL |
10745 | } else { |
10746 | vty_out(vty, "%30s: ", "% announced "); | |
10747 | vty_out(vty, "%12.2f\n", | |
10748 | ts.total_space * 100. * pow(2.0, -32)); | |
10749 | vty_out(vty, "%30s: ", "/8 equivalent "); | |
10750 | vty_out(vty, "%12.2f\n", | |
a4d82a8a | 10751 | ts.total_space * pow(2.0, -32 + 8)); |
8d0ab76d DL |
10752 | vty_out(vty, "%30s: ", "/24 equivalent "); |
10753 | vty_out(vty, "%12.2f\n", | |
a4d82a8a | 10754 | ts.total_space * pow(2.0, -32 + 24)); |
8d0ab76d | 10755 | } |
d62a17ae | 10756 | break; |
10757 | default: | |
10758 | vty_out(vty, "%-30s: ", table_stats_strs[i]); | |
10759 | vty_out(vty, "%12llu", ts.counts[i]); | |
10760 | } | |
ff7924f6 | 10761 | |
d62a17ae | 10762 | vty_out(vty, "\n"); |
10763 | } | |
10764 | return CMD_SUCCESS; | |
10765 | } | |
10766 | ||
10767 | enum bgp_pcounts { | |
10768 | PCOUNT_ADJ_IN = 0, | |
10769 | PCOUNT_DAMPED, | |
10770 | PCOUNT_REMOVED, | |
10771 | PCOUNT_HISTORY, | |
10772 | PCOUNT_STALE, | |
10773 | PCOUNT_VALID, | |
10774 | PCOUNT_ALL, | |
10775 | PCOUNT_COUNTED, | |
10776 | PCOUNT_PFCNT, /* the figure we display to users */ | |
10777 | PCOUNT_MAX, | |
a636c635 | 10778 | }; |
718e3744 | 10779 | |
d62a17ae | 10780 | static const char *pcount_strs[] = { |
9d303b37 DL |
10781 | [PCOUNT_ADJ_IN] = "Adj-in", |
10782 | [PCOUNT_DAMPED] = "Damped", | |
10783 | [PCOUNT_REMOVED] = "Removed", | |
10784 | [PCOUNT_HISTORY] = "History", | |
10785 | [PCOUNT_STALE] = "Stale", | |
10786 | [PCOUNT_VALID] = "Valid", | |
10787 | [PCOUNT_ALL] = "All RIB", | |
10788 | [PCOUNT_COUNTED] = "PfxCt counted", | |
10789 | [PCOUNT_PFCNT] = "Useable", | |
10790 | [PCOUNT_MAX] = NULL, | |
a636c635 | 10791 | }; |
718e3744 | 10792 | |
d62a17ae | 10793 | struct peer_pcounts { |
10794 | unsigned int count[PCOUNT_MAX]; | |
10795 | const struct peer *peer; | |
10796 | const struct bgp_table *table; | |
a636c635 | 10797 | }; |
47fc97cc | 10798 | |
d62a17ae | 10799 | static int bgp_peer_count_walker(struct thread *t) |
10800 | { | |
10801 | struct bgp_node *rn; | |
10802 | struct peer_pcounts *pc = THREAD_ARG(t); | |
10803 | const struct peer *peer = pc->peer; | |
10804 | ||
10805 | for (rn = bgp_table_top(pc->table); rn; rn = bgp_route_next(rn)) { | |
10806 | struct bgp_adj_in *ain; | |
40381db7 | 10807 | struct bgp_path_info *pi; |
d62a17ae | 10808 | |
10809 | for (ain = rn->adj_in; ain; ain = ain->next) | |
10810 | if (ain->peer == peer) | |
10811 | pc->count[PCOUNT_ADJ_IN]++; | |
10812 | ||
6f94b685 DS |
10813 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
10814 | ||
40381db7 | 10815 | if (pi->peer != peer) |
d62a17ae | 10816 | continue; |
10817 | ||
10818 | pc->count[PCOUNT_ALL]++; | |
10819 | ||
40381db7 | 10820 | if (CHECK_FLAG(pi->flags, BGP_PATH_DAMPED)) |
d62a17ae | 10821 | pc->count[PCOUNT_DAMPED]++; |
40381db7 | 10822 | if (CHECK_FLAG(pi->flags, BGP_PATH_HISTORY)) |
d62a17ae | 10823 | pc->count[PCOUNT_HISTORY]++; |
40381db7 | 10824 | if (CHECK_FLAG(pi->flags, BGP_PATH_REMOVED)) |
d62a17ae | 10825 | pc->count[PCOUNT_REMOVED]++; |
40381db7 | 10826 | if (CHECK_FLAG(pi->flags, BGP_PATH_STALE)) |
d62a17ae | 10827 | pc->count[PCOUNT_STALE]++; |
40381db7 | 10828 | if (CHECK_FLAG(pi->flags, BGP_PATH_VALID)) |
d62a17ae | 10829 | pc->count[PCOUNT_VALID]++; |
40381db7 | 10830 | if (!CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE)) |
d62a17ae | 10831 | pc->count[PCOUNT_PFCNT]++; |
10832 | ||
40381db7 | 10833 | if (CHECK_FLAG(pi->flags, BGP_PATH_COUNTED)) { |
d62a17ae | 10834 | pc->count[PCOUNT_COUNTED]++; |
40381db7 | 10835 | if (CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE)) |
1c50c1c0 QY |
10836 | flog_err( |
10837 | EC_LIB_DEVELOPMENT, | |
10838 | "Attempting to count but flags say it is unusable"); | |
d62a17ae | 10839 | } else { |
40381db7 | 10840 | if (!CHECK_FLAG(pi->flags, BGP_PATH_UNUSEABLE)) |
1c50c1c0 QY |
10841 | flog_err( |
10842 | EC_LIB_DEVELOPMENT, | |
10843 | "Not counted but flags say we should"); | |
d62a17ae | 10844 | } |
10845 | } | |
10846 | } | |
10847 | return 0; | |
718e3744 | 10848 | } |
10849 | ||
d62a17ae | 10850 | static int bgp_peer_counts(struct vty *vty, struct peer *peer, afi_t afi, |
9f049418 | 10851 | safi_t safi, bool use_json) |
856ca177 | 10852 | { |
d62a17ae | 10853 | struct peer_pcounts pcounts = {.peer = peer}; |
10854 | unsigned int i; | |
10855 | json_object *json = NULL; | |
10856 | json_object *json_loop = NULL; | |
856ca177 | 10857 | |
d62a17ae | 10858 | if (use_json) { |
10859 | json = json_object_new_object(); | |
10860 | json_loop = json_object_new_object(); | |
10861 | } | |
718e3744 | 10862 | |
d62a17ae | 10863 | if (!peer || !peer->bgp || !peer->afc[afi][safi] |
10864 | || !peer->bgp->rib[afi][safi]) { | |
10865 | if (use_json) { | |
10866 | json_object_string_add( | |
10867 | json, "warning", | |
10868 | "No such neighbor or address family"); | |
10869 | vty_out(vty, "%s\n", json_object_to_json_string(json)); | |
10870 | json_object_free(json); | |
10871 | } else | |
10872 | vty_out(vty, "%% No such neighbor or address family\n"); | |
10873 | ||
10874 | return CMD_WARNING; | |
10875 | } | |
2a71e9ce | 10876 | |
d62a17ae | 10877 | memset(&pcounts, 0, sizeof(pcounts)); |
10878 | pcounts.peer = peer; | |
10879 | pcounts.table = peer->bgp->rib[afi][safi]; | |
10880 | ||
10881 | /* in-place call via thread subsystem so as to record execution time | |
d316210b PZ |
10882 | * stats for the thread-walk (i.e. ensure this can't be blamed on |
10883 | * on just vty_read()). | |
10884 | */ | |
d62a17ae | 10885 | thread_execute(bm->master, bgp_peer_count_walker, &pcounts, 0); |
10886 | ||
10887 | if (use_json) { | |
10888 | json_object_string_add(json, "prefixCountsFor", peer->host); | |
10889 | json_object_string_add(json, "multiProtocol", | |
10890 | afi_safi_print(afi, safi)); | |
10891 | json_object_int_add(json, "pfxCounter", | |
10892 | peer->pcount[afi][safi]); | |
10893 | ||
10894 | for (i = 0; i < PCOUNT_MAX; i++) | |
10895 | json_object_int_add(json_loop, pcount_strs[i], | |
10896 | pcounts.count[i]); | |
10897 | ||
10898 | json_object_object_add(json, "ribTableWalkCounters", json_loop); | |
10899 | ||
10900 | if (pcounts.count[PCOUNT_PFCNT] != peer->pcount[afi][safi]) { | |
10901 | json_object_string_add(json, "pfxctDriftFor", | |
10902 | peer->host); | |
10903 | json_object_string_add( | |
10904 | json, "recommended", | |
10905 | "Please report this bug, with the above command output"); | |
10906 | } | |
996c9314 LB |
10907 | vty_out(vty, "%s\n", json_object_to_json_string_ext( |
10908 | json, JSON_C_TO_STRING_PRETTY)); | |
d62a17ae | 10909 | json_object_free(json); |
10910 | } else { | |
10911 | ||
10912 | if (peer->hostname | |
10913 | && bgp_flag_check(peer->bgp, BGP_FLAG_SHOW_HOSTNAME)) { | |
10914 | vty_out(vty, "Prefix counts for %s/%s, %s\n", | |
10915 | peer->hostname, peer->host, | |
10916 | afi_safi_print(afi, safi)); | |
10917 | } else { | |
10918 | vty_out(vty, "Prefix counts for %s, %s\n", peer->host, | |
10919 | afi_safi_print(afi, safi)); | |
10920 | } | |
10921 | ||
10922 | vty_out(vty, "PfxCt: %ld\n", peer->pcount[afi][safi]); | |
10923 | vty_out(vty, "\nCounts from RIB table walk:\n\n"); | |
10924 | ||
10925 | for (i = 0; i < PCOUNT_MAX; i++) | |
10926 | vty_out(vty, "%20s: %-10d\n", pcount_strs[i], | |
10927 | pcounts.count[i]); | |
10928 | ||
10929 | if (pcounts.count[PCOUNT_PFCNT] != peer->pcount[afi][safi]) { | |
10930 | vty_out(vty, "%s [pcount] PfxCt drift!\n", peer->host); | |
10931 | vty_out(vty, | |
10932 | "Please report this bug, with the above command output\n"); | |
10933 | } | |
10934 | } | |
10935 | ||
10936 | return CMD_SUCCESS; | |
718e3744 | 10937 | } |
10938 | ||
a636c635 DW |
10939 | DEFUN (show_ip_bgp_instance_neighbor_prefix_counts, |
10940 | show_ip_bgp_instance_neighbor_prefix_counts_cmd, | |
c1a44e43 | 10941 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_CMD_STR"]] " |
30a6a167 | 10942 | "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]", |
718e3744 | 10943 | SHOW_STR |
10944 | IP_STR | |
10945 | BGP_STR | |
8386ac43 | 10946 | BGP_INSTANCE_HELP_STR |
9bedbb1e DW |
10947 | BGP_AFI_HELP_STR |
10948 | BGP_SAFI_HELP_STR | |
0b16f239 DS |
10949 | "Detailed information on TCP and BGP neighbor connections\n" |
10950 | "Neighbor to display information about\n" | |
10951 | "Neighbor to display information about\n" | |
91d37724 | 10952 | "Neighbor on BGP configured interface\n" |
a636c635 | 10953 | "Display detailed prefix count information\n" |
9973d184 | 10954 | JSON_STR) |
0b16f239 | 10955 | { |
d62a17ae | 10956 | afi_t afi = AFI_IP6; |
10957 | safi_t safi = SAFI_UNICAST; | |
10958 | struct peer *peer; | |
10959 | int idx = 0; | |
10960 | struct bgp *bgp = NULL; | |
9f049418 DS |
10961 | bool uj = use_json(argc, argv); |
10962 | ||
10963 | if (uj) | |
10964 | argc--; | |
856ca177 | 10965 | |
d62a17ae | 10966 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, |
9f049418 | 10967 | &bgp, uj); |
d62a17ae | 10968 | if (!idx) |
10969 | return CMD_WARNING; | |
0b16f239 | 10970 | |
d62a17ae | 10971 | argv_find(argv, argc, "neighbors", &idx); |
10972 | peer = peer_lookup_in_view(vty, bgp, argv[idx + 1]->arg, uj); | |
10973 | if (!peer) | |
10974 | return CMD_WARNING; | |
bb46e94f | 10975 | |
29c8d9da | 10976 | return bgp_peer_counts(vty, peer, afi, safi, uj); |
a636c635 | 10977 | } |
0b16f239 | 10978 | |
d6902373 PG |
10979 | #ifdef KEEP_OLD_VPN_COMMANDS |
10980 | DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts, | |
10981 | show_ip_bgp_vpn_neighbor_prefix_counts_cmd, | |
10982 | "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]", | |
2a71e9ce TP |
10983 | SHOW_STR |
10984 | IP_STR | |
10985 | BGP_STR | |
d6902373 | 10986 | BGP_VPNVX_HELP_STR |
91d37724 | 10987 | "Display information about all VPNv4 NLRIs\n" |
2a71e9ce TP |
10988 | "Detailed information on TCP and BGP neighbor connections\n" |
10989 | "Neighbor to display information about\n" | |
10990 | "Neighbor to display information about\n" | |
91d37724 | 10991 | "Neighbor on BGP configured interface\n" |
a636c635 | 10992 | "Display detailed prefix count information\n" |
9973d184 | 10993 | JSON_STR) |
a636c635 | 10994 | { |
d62a17ae | 10995 | int idx_peer = 6; |
10996 | struct peer *peer; | |
9f049418 | 10997 | bool uj = use_json(argc, argv); |
a636c635 | 10998 | |
d62a17ae | 10999 | peer = peer_lookup_in_view(vty, NULL, argv[idx_peer]->arg, uj); |
11000 | if (!peer) | |
11001 | return CMD_WARNING; | |
11002 | ||
11003 | return bgp_peer_counts(vty, peer, AFI_IP, SAFI_MPLS_VPN, uj); | |
a636c635 DW |
11004 | } |
11005 | ||
d6902373 PG |
11006 | DEFUN (show_ip_bgp_vpn_all_route_prefix, |
11007 | show_ip_bgp_vpn_all_route_prefix_cmd, | |
11008 | "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]", | |
91d37724 QY |
11009 | SHOW_STR |
11010 | IP_STR | |
11011 | BGP_STR | |
d6902373 | 11012 | BGP_VPNVX_HELP_STR |
91d37724 QY |
11013 | "Display information about all VPNv4 NLRIs\n" |
11014 | "Network in the BGP routing table to display\n" | |
3a2d747c | 11015 | "Network in the BGP routing table to display\n" |
9973d184 | 11016 | JSON_STR) |
91d37724 | 11017 | { |
d62a17ae | 11018 | int idx = 0; |
11019 | char *network = NULL; | |
11020 | struct bgp *bgp = bgp_get_default(); | |
11021 | if (!bgp) { | |
11022 | vty_out(vty, "Can't find default instance\n"); | |
11023 | return CMD_WARNING; | |
11024 | } | |
87e34b58 | 11025 | |
d62a17ae | 11026 | if (argv_find(argv, argc, "A.B.C.D", &idx)) |
11027 | network = argv[idx]->arg; | |
11028 | else if (argv_find(argv, argc, "A.B.C.D/M", &idx)) | |
11029 | network = argv[idx]->arg; | |
11030 | else { | |
11031 | vty_out(vty, "Unable to figure out Network\n"); | |
11032 | return CMD_WARNING; | |
11033 | } | |
87e34b58 | 11034 | |
d62a17ae | 11035 | return bgp_show_route(vty, bgp, network, AFI_IP, SAFI_MPLS_VPN, NULL, 0, |
360660c6 | 11036 | BGP_PATH_SHOW_ALL, use_json(argc, argv)); |
91d37724 | 11037 | } |
d6902373 | 11038 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
91d37724 | 11039 | |
4c63a661 PG |
11040 | DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix, |
11041 | show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd, | |
11042 | "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]", | |
11043 | SHOW_STR | |
11044 | IP_STR | |
11045 | BGP_STR | |
11046 | L2VPN_HELP_STR | |
11047 | EVPN_HELP_STR | |
11048 | "Display information about all EVPN NLRIs\n" | |
11049 | "Network in the BGP routing table to display\n" | |
11050 | "Network in the BGP routing table to display\n" | |
11051 | JSON_STR) | |
11052 | { | |
d62a17ae | 11053 | int idx = 0; |
11054 | char *network = NULL; | |
a636c635 | 11055 | |
d62a17ae | 11056 | if (argv_find(argv, argc, "A.B.C.D", &idx)) |
11057 | network = argv[idx]->arg; | |
11058 | else if (argv_find(argv, argc, "A.B.C.D/M", &idx)) | |
11059 | network = argv[idx]->arg; | |
11060 | else { | |
11061 | vty_out(vty, "Unable to figure out Network\n"); | |
11062 | return CMD_WARNING; | |
11063 | } | |
11064 | return bgp_show_route(vty, NULL, network, AFI_L2VPN, SAFI_EVPN, NULL, 0, | |
360660c6 | 11065 | BGP_PATH_SHOW_ALL, use_json(argc, argv)); |
d62a17ae | 11066 | } |
11067 | ||
11068 | static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi, | |
6392aaa6 | 11069 | safi_t safi, enum bgp_show_adj_route_type type, |
9f049418 | 11070 | const char *rmap_name, bool use_json, |
6392aaa6 | 11071 | json_object *json) |
d62a17ae | 11072 | { |
11073 | struct bgp_table *table; | |
11074 | struct bgp_adj_in *ain; | |
11075 | struct bgp_adj_out *adj; | |
11076 | unsigned long output_count; | |
11077 | unsigned long filtered_count; | |
11078 | struct bgp_node *rn; | |
11079 | int header1 = 1; | |
11080 | struct bgp *bgp; | |
11081 | int header2 = 1; | |
11082 | struct attr attr; | |
11083 | int ret; | |
11084 | struct update_subgroup *subgrp; | |
11085 | json_object *json_scode = NULL; | |
11086 | json_object *json_ocode = NULL; | |
11087 | json_object *json_ar = NULL; | |
11088 | struct peer_af *paf; | |
f99def61 | 11089 | bool route_filtered; |
d62a17ae | 11090 | |
11091 | if (use_json) { | |
11092 | json_scode = json_object_new_object(); | |
11093 | json_ocode = json_object_new_object(); | |
11094 | json_ar = json_object_new_object(); | |
11095 | ||
11096 | json_object_string_add(json_scode, "suppressed", "s"); | |
11097 | json_object_string_add(json_scode, "damped", "d"); | |
11098 | json_object_string_add(json_scode, "history", "h"); | |
11099 | json_object_string_add(json_scode, "valid", "*"); | |
11100 | json_object_string_add(json_scode, "best", ">"); | |
11101 | json_object_string_add(json_scode, "multipath", "="); | |
11102 | json_object_string_add(json_scode, "internal", "i"); | |
11103 | json_object_string_add(json_scode, "ribFailure", "r"); | |
11104 | json_object_string_add(json_scode, "stale", "S"); | |
11105 | json_object_string_add(json_scode, "removed", "R"); | |
11106 | ||
11107 | json_object_string_add(json_ocode, "igp", "i"); | |
11108 | json_object_string_add(json_ocode, "egp", "e"); | |
11109 | json_object_string_add(json_ocode, "incomplete", "?"); | |
11110 | } | |
a636c635 | 11111 | |
d62a17ae | 11112 | bgp = peer->bgp; |
a636c635 | 11113 | |
d62a17ae | 11114 | if (!bgp) { |
11115 | if (use_json) { | |
11116 | json_object_string_add(json, "alert", "no BGP"); | |
11117 | vty_out(vty, "%s\n", json_object_to_json_string(json)); | |
11118 | json_object_free(json); | |
11119 | } else | |
11120 | vty_out(vty, "%% No bgp\n"); | |
11121 | return; | |
11122 | } | |
a636c635 | 11123 | |
c512a642 EDP |
11124 | /* labeled-unicast routes live in the unicast table */ |
11125 | if (safi == SAFI_LABELED_UNICAST) | |
11126 | table = bgp->rib[afi][SAFI_UNICAST]; | |
11127 | else | |
11128 | table = bgp->rib[afi][safi]; | |
d62a17ae | 11129 | |
11130 | output_count = filtered_count = 0; | |
11131 | subgrp = peer_subgroup(peer, afi, safi); | |
11132 | ||
6392aaa6 | 11133 | if (type == bgp_show_adj_route_advertised && subgrp |
d62a17ae | 11134 | && CHECK_FLAG(subgrp->sflags, SUBGRP_STATUS_DEFAULT_ORIGINATE)) { |
11135 | if (use_json) { | |
11136 | json_object_int_add(json, "bgpTableVersion", | |
11137 | table->version); | |
11138 | json_object_string_add(json, "bgpLocalRouterId", | |
11139 | inet_ntoa(bgp->router_id)); | |
01eced22 AD |
11140 | json_object_int_add(json, "defaultLocPrf", |
11141 | bgp->default_local_pref); | |
11142 | json_object_int_add(json, "localAS", bgp->as); | |
d62a17ae | 11143 | json_object_object_add(json, "bgpStatusCodes", |
11144 | json_scode); | |
11145 | json_object_object_add(json, "bgpOriginCodes", | |
11146 | json_ocode); | |
07d0c4ed DA |
11147 | json_object_string_add( |
11148 | json, "bgpOriginatingDefaultNetwork", | |
11149 | (afi == AFI_IP) ? "0.0.0.0/0" : "::/0"); | |
d62a17ae | 11150 | } else { |
996c9314 | 11151 | vty_out(vty, "BGP table version is %" PRIu64 |
9df8b37c | 11152 | ", local router ID is %s, vrf id ", |
d62a17ae | 11153 | table->version, inet_ntoa(bgp->router_id)); |
9df8b37c PZ |
11154 | if (bgp->vrf_id == VRF_UNKNOWN) |
11155 | vty_out(vty, "%s", VRFID_NONE_STR); | |
11156 | else | |
11157 | vty_out(vty, "%u", bgp->vrf_id); | |
11158 | vty_out(vty, "\n"); | |
01eced22 AD |
11159 | vty_out(vty, "Default local pref %u, ", |
11160 | bgp->default_local_pref); | |
11161 | vty_out(vty, "local AS %u\n", bgp->as); | |
d62a17ae | 11162 | vty_out(vty, BGP_SHOW_SCODE_HEADER); |
9df8b37c | 11163 | vty_out(vty, BGP_SHOW_NCODE_HEADER); |
d62a17ae | 11164 | vty_out(vty, BGP_SHOW_OCODE_HEADER); |
11165 | ||
07d0c4ed DA |
11166 | vty_out(vty, "Originating default network %s\n\n", |
11167 | (afi == AFI_IP) ? "0.0.0.0/0" : "::/0"); | |
d62a17ae | 11168 | } |
11169 | header1 = 0; | |
11170 | } | |
a636c635 | 11171 | |
d62a17ae | 11172 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { |
6392aaa6 PM |
11173 | if (type == bgp_show_adj_route_received |
11174 | || type == bgp_show_adj_route_filtered) { | |
d62a17ae | 11175 | for (ain = rn->adj_in; ain; ain = ain->next) { |
6392aaa6 | 11176 | if (ain->peer != peer || !ain->attr) |
ea47320b | 11177 | continue; |
6392aaa6 | 11178 | |
ea47320b DL |
11179 | if (header1) { |
11180 | if (use_json) { | |
11181 | json_object_int_add( | |
60466a63 | 11182 | json, "bgpTableVersion", |
ea47320b DL |
11183 | 0); |
11184 | json_object_string_add( | |
11185 | json, | |
11186 | "bgpLocalRouterId", | |
11187 | inet_ntoa( | |
11188 | bgp->router_id)); | |
01eced22 AD |
11189 | json_object_int_add(json, |
11190 | "defaultLocPrf", | |
11191 | bgp->default_local_pref); | |
11192 | json_object_int_add(json, | |
11193 | "localAS", bgp->as); | |
ea47320b | 11194 | json_object_object_add( |
60466a63 | 11195 | json, "bgpStatusCodes", |
ea47320b DL |
11196 | json_scode); |
11197 | json_object_object_add( | |
60466a63 | 11198 | json, "bgpOriginCodes", |
ea47320b DL |
11199 | json_ocode); |
11200 | } else { | |
11201 | vty_out(vty, | |
9df8b37c | 11202 | "BGP table version is 0, local router ID is %s, vrf id ", |
ea47320b | 11203 | inet_ntoa( |
9df8b37c PZ |
11204 | bgp->router_id)); |
11205 | if (bgp->vrf_id == VRF_UNKNOWN) | |
11206 | vty_out(vty, "%s", | |
11207 | VRFID_NONE_STR); | |
11208 | else | |
11209 | vty_out(vty, "%u", | |
11210 | bgp->vrf_id); | |
11211 | vty_out(vty, "\n"); | |
01eced22 AD |
11212 | vty_out(vty, |
11213 | "Default local pref %u, ", | |
11214 | bgp->default_local_pref); | |
11215 | vty_out(vty, "local AS %u\n", | |
11216 | bgp->as); | |
ea47320b DL |
11217 | vty_out(vty, |
11218 | BGP_SHOW_SCODE_HEADER); | |
9df8b37c PZ |
11219 | vty_out(vty, |
11220 | BGP_SHOW_NCODE_HEADER); | |
ea47320b DL |
11221 | vty_out(vty, |
11222 | BGP_SHOW_OCODE_HEADER); | |
d62a17ae | 11223 | } |
ea47320b DL |
11224 | header1 = 0; |
11225 | } | |
11226 | if (header2) { | |
11227 | if (!use_json) | |
11228 | vty_out(vty, BGP_SHOW_HEADER); | |
11229 | header2 = 0; | |
11230 | } | |
6392aaa6 PM |
11231 | |
11232 | bgp_attr_dup(&attr, ain->attr); | |
f99def61 AD |
11233 | route_filtered = false; |
11234 | ||
11235 | /* Filter prefix using distribute list, | |
11236 | * filter list or prefix list | |
11237 | */ | |
11238 | if ((bgp_input_filter(peer, &rn->p, &attr, afi, | |
11239 | safi)) == FILTER_DENY) | |
11240 | route_filtered = true; | |
11241 | ||
11242 | /* Filter prefix using route-map */ | |
6392aaa6 | 11243 | ret = bgp_input_modifier(peer, &rn->p, &attr, |
82b692c0 | 11244 | afi, safi, rmap_name, NULL, 0); |
6392aaa6 | 11245 | |
13c8e163 AD |
11246 | if (type == bgp_show_adj_route_filtered && |
11247 | !route_filtered && ret != RMAP_DENY) { | |
b755861b | 11248 | bgp_attr_undup(&attr, ain->attr); |
6392aaa6 | 11249 | continue; |
d62a17ae | 11250 | } |
6392aaa6 | 11251 | |
13c8e163 AD |
11252 | if (type == bgp_show_adj_route_received && |
11253 | (route_filtered || ret == RMAP_DENY)) | |
6392aaa6 PM |
11254 | filtered_count++; |
11255 | ||
11256 | route_vty_out_tmp(vty, &rn->p, &attr, safi, | |
11257 | use_json, json_ar); | |
b755861b | 11258 | bgp_attr_undup(&attr, ain->attr); |
6392aaa6 | 11259 | output_count++; |
d62a17ae | 11260 | } |
6392aaa6 | 11261 | } else if (type == bgp_show_adj_route_advertised) { |
a79c04e7 | 11262 | RB_FOREACH (adj, bgp_adj_out_rb, &rn->adj_out) |
924c3f6a | 11263 | SUBGRP_FOREACH_PEER (adj->subgroup, paf) { |
b755861b | 11264 | if (paf->peer != peer || !adj->attr) |
924c3f6a | 11265 | continue; |
d62a17ae | 11266 | |
924c3f6a DS |
11267 | if (header1) { |
11268 | if (use_json) { | |
11269 | json_object_int_add( | |
11270 | json, | |
11271 | "bgpTableVersion", | |
11272 | table->version); | |
11273 | json_object_string_add( | |
11274 | json, | |
11275 | "bgpLocalRouterId", | |
11276 | inet_ntoa( | |
11277 | bgp->router_id)); | |
01eced22 AD |
11278 | json_object_int_add( |
11279 | json, "defaultLocPrf", | |
11280 | bgp->default_local_pref | |
11281 | ); | |
11282 | json_object_int_add( | |
11283 | json, "localAS", | |
11284 | bgp->as); | |
924c3f6a DS |
11285 | json_object_object_add( |
11286 | json, | |
11287 | "bgpStatusCodes", | |
11288 | json_scode); | |
11289 | json_object_object_add( | |
11290 | json, | |
11291 | "bgpOriginCodes", | |
11292 | json_ocode); | |
11293 | } else { | |
11294 | vty_out(vty, | |
11295 | "BGP table version is %" PRIu64 | |
9df8b37c | 11296 | ", local router ID is %s, vrf id ", |
924c3f6a DS |
11297 | table->version, |
11298 | inet_ntoa( | |
11299 | bgp->router_id)); | |
9df8b37c PZ |
11300 | if (bgp->vrf_id == |
11301 | VRF_UNKNOWN) | |
11302 | vty_out(vty, | |
11303 | "%s", | |
11304 | VRFID_NONE_STR); | |
11305 | else | |
11306 | vty_out(vty, | |
11307 | "%u", | |
11308 | bgp->vrf_id); | |
11309 | vty_out(vty, "\n"); | |
01eced22 AD |
11310 | vty_out(vty, |
11311 | "Default local pref %u, ", | |
11312 | bgp->default_local_pref | |
11313 | ); | |
11314 | vty_out(vty, | |
11315 | "local AS %u\n", | |
11316 | bgp->as); | |
924c3f6a DS |
11317 | vty_out(vty, |
11318 | BGP_SHOW_SCODE_HEADER); | |
9df8b37c PZ |
11319 | vty_out(vty, |
11320 | BGP_SHOW_NCODE_HEADER); | |
924c3f6a DS |
11321 | vty_out(vty, |
11322 | BGP_SHOW_OCODE_HEADER); | |
a2addae8 | 11323 | } |
924c3f6a DS |
11324 | header1 = 0; |
11325 | } | |
924c3f6a DS |
11326 | if (header2) { |
11327 | if (!use_json) | |
11328 | vty_out(vty, | |
11329 | BGP_SHOW_HEADER); | |
11330 | header2 = 0; | |
11331 | } | |
d62a17ae | 11332 | |
b755861b PM |
11333 | bgp_attr_dup(&attr, adj->attr); |
11334 | ret = bgp_output_modifier( | |
11335 | peer, &rn->p, &attr, afi, safi, | |
11336 | rmap_name); | |
f46d8e1e | 11337 | |
b755861b PM |
11338 | if (ret != RMAP_DENY) { |
11339 | route_vty_out_tmp(vty, &rn->p, | |
11340 | &attr, safi, | |
11341 | use_json, | |
11342 | json_ar); | |
11343 | output_count++; | |
11344 | } else { | |
11345 | filtered_count++; | |
a2addae8 | 11346 | } |
b755861b PM |
11347 | |
11348 | bgp_attr_undup(&attr, adj->attr); | |
924c3f6a | 11349 | } |
d62a17ae | 11350 | } |
11351 | } | |
d62a17ae | 11352 | |
d62a17ae | 11353 | if (use_json) { |
6392aaa6 PM |
11354 | json_object_object_add(json, "advertisedRoutes", json_ar); |
11355 | json_object_int_add(json, "totalPrefixCounter", output_count); | |
11356 | json_object_int_add(json, "filteredPrefixCounter", | |
11357 | filtered_count); | |
11358 | ||
996c9314 LB |
11359 | vty_out(vty, "%s\n", json_object_to_json_string_ext( |
11360 | json, JSON_C_TO_STRING_PRETTY)); | |
d62a17ae | 11361 | json_object_free(json); |
6392aaa6 PM |
11362 | } else if (output_count > 0) { |
11363 | if (filtered_count > 0) | |
11364 | vty_out(vty, | |
11365 | "\nTotal number of prefixes %ld (%ld filtered)\n", | |
11366 | output_count, filtered_count); | |
11367 | else | |
11368 | vty_out(vty, "\nTotal number of prefixes %ld\n", | |
11369 | output_count); | |
d62a17ae | 11370 | } |
a636c635 | 11371 | } |
2a71e9ce | 11372 | |
d62a17ae | 11373 | static int peer_adj_routes(struct vty *vty, struct peer *peer, afi_t afi, |
6392aaa6 | 11374 | safi_t safi, enum bgp_show_adj_route_type type, |
9f049418 | 11375 | const char *rmap_name, bool use_json) |
0b16f239 | 11376 | { |
d62a17ae | 11377 | json_object *json = NULL; |
0b16f239 | 11378 | |
d62a17ae | 11379 | if (use_json) |
11380 | json = json_object_new_object(); | |
0b16f239 | 11381 | |
d62a17ae | 11382 | if (!peer || !peer->afc[afi][safi]) { |
11383 | if (use_json) { | |
11384 | json_object_string_add( | |
11385 | json, "warning", | |
11386 | "No such neighbor or address family"); | |
11387 | vty_out(vty, "%s\n", json_object_to_json_string(json)); | |
11388 | json_object_free(json); | |
11389 | } else | |
11390 | vty_out(vty, "%% No such neighbor or address family\n"); | |
0b16f239 | 11391 | |
d62a17ae | 11392 | return CMD_WARNING; |
11393 | } | |
11394 | ||
6392aaa6 PM |
11395 | if ((type == bgp_show_adj_route_received |
11396 | || type == bgp_show_adj_route_filtered) | |
d62a17ae | 11397 | && !CHECK_FLAG(peer->af_flags[afi][safi], |
11398 | PEER_FLAG_SOFT_RECONFIG)) { | |
11399 | if (use_json) { | |
11400 | json_object_string_add( | |
11401 | json, "warning", | |
11402 | "Inbound soft reconfiguration not enabled"); | |
11403 | vty_out(vty, "%s\n", json_object_to_json_string(json)); | |
11404 | json_object_free(json); | |
11405 | } else | |
11406 | vty_out(vty, | |
11407 | "%% Inbound soft reconfiguration not enabled\n"); | |
11408 | ||
11409 | return CMD_WARNING; | |
11410 | } | |
0b16f239 | 11411 | |
6392aaa6 | 11412 | show_adj_route(vty, peer, afi, safi, type, rmap_name, use_json, json); |
0b16f239 | 11413 | |
d62a17ae | 11414 | return CMD_SUCCESS; |
a636c635 | 11415 | } |
50ef26d4 | 11416 | |
a636c635 DW |
11417 | DEFUN (show_ip_bgp_instance_neighbor_advertised_route, |
11418 | show_ip_bgp_instance_neighbor_advertised_route_cmd, | |
4dd6177e | 11419 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] " |
6392aaa6 | 11420 | "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]", |
718e3744 | 11421 | SHOW_STR |
11422 | IP_STR | |
11423 | BGP_STR | |
a636c635 | 11424 | BGP_INSTANCE_HELP_STR |
7395a2c9 | 11425 | BGP_AFI_HELP_STR |
4dd6177e | 11426 | BGP_SAFI_WITH_LABEL_HELP_STR |
718e3744 | 11427 | "Detailed information on TCP and BGP neighbor connections\n" |
11428 | "Neighbor to display information about\n" | |
11429 | "Neighbor to display information about\n" | |
91d37724 | 11430 | "Neighbor on BGP configured interface\n" |
a636c635 | 11431 | "Display the routes advertised to a BGP neighbor\n" |
6392aaa6 PM |
11432 | "Display the received routes from neighbor\n" |
11433 | "Display the filtered routes received from neighbor\n" | |
a636c635 DW |
11434 | "Route-map to modify the attributes\n" |
11435 | "Name of the route map\n" | |
9973d184 | 11436 | JSON_STR) |
718e3744 | 11437 | { |
d62a17ae | 11438 | afi_t afi = AFI_IP6; |
11439 | safi_t safi = SAFI_UNICAST; | |
11440 | char *rmap_name = NULL; | |
11441 | char *peerstr = NULL; | |
d62a17ae | 11442 | struct bgp *bgp = NULL; |
11443 | struct peer *peer; | |
6392aaa6 | 11444 | enum bgp_show_adj_route_type type = bgp_show_adj_route_advertised; |
d62a17ae | 11445 | int idx = 0; |
9f049418 | 11446 | bool uj = use_json(argc, argv); |
6392aaa6 | 11447 | |
d62a17ae | 11448 | if (uj) |
11449 | argc--; | |
30a6a167 | 11450 | |
9f049418 DS |
11451 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, |
11452 | &bgp, uj); | |
11453 | if (!idx) | |
11454 | return CMD_WARNING; | |
11455 | ||
d62a17ae | 11456 | /* neighbors <A.B.C.D|X:X::X:X|WORD> */ |
11457 | argv_find(argv, argc, "neighbors", &idx); | |
11458 | peerstr = argv[++idx]->arg; | |
8c3deaae | 11459 | |
d62a17ae | 11460 | peer = peer_lookup_in_view(vty, bgp, peerstr, uj); |
11461 | if (!peer) | |
11462 | return CMD_WARNING; | |
856ca177 | 11463 | |
d62a17ae | 11464 | if (argv_find(argv, argc, "advertised-routes", &idx)) |
6392aaa6 PM |
11465 | type = bgp_show_adj_route_advertised; |
11466 | else if (argv_find(argv, argc, "received-routes", &idx)) | |
11467 | type = bgp_show_adj_route_received; | |
11468 | else if (argv_find(argv, argc, "filtered-routes", &idx)) | |
11469 | type = bgp_show_adj_route_filtered; | |
11470 | ||
d62a17ae | 11471 | if (argv_find(argv, argc, "route-map", &idx)) |
11472 | rmap_name = argv[++idx]->arg; | |
95cbbd2a | 11473 | |
6392aaa6 | 11474 | return peer_adj_routes(vty, peer, afi, safi, type, rmap_name, uj); |
95cbbd2a ML |
11475 | } |
11476 | ||
718e3744 | 11477 | DEFUN (show_ip_bgp_neighbor_received_prefix_filter, |
11478 | show_ip_bgp_neighbor_received_prefix_filter_cmd, | |
8c3deaae | 11479 | "show [ip] bgp [<ipv4|ipv6> [unicast]] neighbors <A.B.C.D|X:X::X:X|WORD> received prefix-filter [json]", |
718e3744 | 11480 | SHOW_STR |
11481 | IP_STR | |
11482 | BGP_STR | |
8c3deaae QY |
11483 | "Address Family\n" |
11484 | "Address Family\n" | |
718e3744 | 11485 | "Address Family modifier\n" |
11486 | "Detailed information on TCP and BGP neighbor connections\n" | |
11487 | "Neighbor to display information about\n" | |
11488 | "Neighbor to display information about\n" | |
91d37724 | 11489 | "Neighbor on BGP configured interface\n" |
718e3744 | 11490 | "Display information received from a BGP neighbor\n" |
856ca177 | 11491 | "Display the prefixlist filter\n" |
9973d184 | 11492 | JSON_STR) |
718e3744 | 11493 | { |
d62a17ae | 11494 | afi_t afi = AFI_IP6; |
11495 | safi_t safi = SAFI_UNICAST; | |
11496 | char *peerstr = NULL; | |
11497 | ||
11498 | char name[BUFSIZ]; | |
11499 | union sockunion su; | |
11500 | struct peer *peer; | |
11501 | int count, ret; | |
11502 | ||
11503 | int idx = 0; | |
11504 | ||
11505 | /* show [ip] bgp */ | |
11506 | if (argv_find(argv, argc, "ip", &idx)) | |
11507 | afi = AFI_IP; | |
11508 | /* [<ipv4|ipv6> [unicast]] */ | |
11509 | if (argv_find(argv, argc, "ipv4", &idx)) | |
11510 | afi = AFI_IP; | |
11511 | if (argv_find(argv, argc, "ipv6", &idx)) | |
11512 | afi = AFI_IP6; | |
11513 | /* neighbors <A.B.C.D|X:X::X:X|WORD> */ | |
11514 | argv_find(argv, argc, "neighbors", &idx); | |
11515 | peerstr = argv[++idx]->arg; | |
11516 | ||
9f049418 | 11517 | bool uj = use_json(argc, argv); |
d62a17ae | 11518 | |
11519 | ret = str2sockunion(peerstr, &su); | |
11520 | if (ret < 0) { | |
11521 | peer = peer_lookup_by_conf_if(NULL, peerstr); | |
11522 | if (!peer) { | |
11523 | if (uj) | |
11524 | vty_out(vty, "{}\n"); | |
11525 | else | |
11526 | vty_out(vty, | |
11527 | "%% Malformed address or name: %s\n", | |
11528 | peerstr); | |
11529 | return CMD_WARNING; | |
11530 | } | |
11531 | } else { | |
11532 | peer = peer_lookup(NULL, &su); | |
11533 | if (!peer) { | |
11534 | if (uj) | |
11535 | vty_out(vty, "{}\n"); | |
11536 | else | |
11537 | vty_out(vty, "No peer\n"); | |
11538 | return CMD_WARNING; | |
11539 | } | |
11540 | } | |
718e3744 | 11541 | |
d62a17ae | 11542 | sprintf(name, "%s.%d.%d", peer->host, afi, safi); |
11543 | count = prefix_bgp_show_prefix_list(NULL, afi, name, uj); | |
11544 | if (count) { | |
11545 | if (!uj) | |
11546 | vty_out(vty, "Address Family: %s\n", | |
11547 | afi_safi_print(afi, safi)); | |
11548 | prefix_bgp_show_prefix_list(vty, afi, name, uj); | |
11549 | } else { | |
11550 | if (uj) | |
11551 | vty_out(vty, "{}\n"); | |
11552 | else | |
11553 | vty_out(vty, "No functional output\n"); | |
11554 | } | |
718e3744 | 11555 | |
d62a17ae | 11556 | return CMD_SUCCESS; |
11557 | } | |
11558 | ||
11559 | static int bgp_show_neighbor_route(struct vty *vty, struct peer *peer, | |
11560 | afi_t afi, safi_t safi, | |
9f049418 | 11561 | enum bgp_show_type type, bool use_json) |
d62a17ae | 11562 | { |
8a893163 DW |
11563 | /* labeled-unicast routes live in the unicast table */ |
11564 | if (safi == SAFI_LABELED_UNICAST) | |
11565 | safi = SAFI_UNICAST; | |
11566 | ||
d62a17ae | 11567 | if (!peer || !peer->afc[afi][safi]) { |
11568 | if (use_json) { | |
11569 | json_object *json_no = NULL; | |
11570 | json_no = json_object_new_object(); | |
11571 | json_object_string_add( | |
11572 | json_no, "warning", | |
11573 | "No such neighbor or address family"); | |
11574 | vty_out(vty, "%s\n", | |
11575 | json_object_to_json_string(json_no)); | |
11576 | json_object_free(json_no); | |
11577 | } else | |
11578 | vty_out(vty, "%% No such neighbor or address family\n"); | |
11579 | return CMD_WARNING; | |
11580 | } | |
47fc97cc | 11581 | |
d62a17ae | 11582 | return bgp_show(vty, peer->bgp, afi, safi, type, &peer->su, use_json); |
718e3744 | 11583 | } |
11584 | ||
dba3c1d3 PG |
11585 | DEFUN (show_ip_bgp_flowspec_routes_detailed, |
11586 | show_ip_bgp_flowspec_routes_detailed_cmd, | |
11587 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" flowspec] detail [json]", | |
11588 | SHOW_STR | |
11589 | IP_STR | |
11590 | BGP_STR | |
11591 | BGP_INSTANCE_HELP_STR | |
11592 | BGP_AFI_HELP_STR | |
11593 | "SAFI Flowspec\n" | |
11594 | "Detailed information on flowspec entries\n" | |
11595 | JSON_STR) | |
11596 | { | |
11597 | afi_t afi = AFI_IP; | |
11598 | safi_t safi = SAFI_UNICAST; | |
11599 | struct bgp *bgp = NULL; | |
11600 | int idx = 0; | |
9f049418 DS |
11601 | bool uj = use_json(argc, argv); |
11602 | ||
11603 | if (uj) | |
11604 | argc--; | |
dba3c1d3 PG |
11605 | |
11606 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, | |
9f049418 | 11607 | &bgp, uj); |
dba3c1d3 PG |
11608 | if (!idx) |
11609 | return CMD_WARNING; | |
11610 | ||
9f049418 | 11611 | return bgp_show(vty, bgp, afi, safi, bgp_show_type_detail, NULL, uj); |
dba3c1d3 PG |
11612 | } |
11613 | ||
718e3744 | 11614 | DEFUN (show_ip_bgp_neighbor_routes, |
11615 | show_ip_bgp_neighbor_routes_cmd, | |
4dd6177e | 11616 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] " |
30a6a167 | 11617 | "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]", |
50ef26d4 | 11618 | SHOW_STR |
11619 | IP_STR | |
11620 | BGP_STR | |
8386ac43 | 11621 | BGP_INSTANCE_HELP_STR |
4f280b15 | 11622 | BGP_AFI_HELP_STR |
4dd6177e | 11623 | BGP_SAFI_WITH_LABEL_HELP_STR |
718e3744 | 11624 | "Detailed information on TCP and BGP neighbor connections\n" |
11625 | "Neighbor to display information about\n" | |
11626 | "Neighbor to display information about\n" | |
91d37724 | 11627 | "Neighbor on BGP configured interface\n" |
2525cf39 | 11628 | "Display flap statistics of the routes learned from neighbor\n" |
8c3deaae QY |
11629 | "Display the dampened routes received from neighbor\n" |
11630 | "Display routes learned from neighbor\n" | |
9973d184 | 11631 | JSON_STR) |
718e3744 | 11632 | { |
d62a17ae | 11633 | char *peerstr = NULL; |
11634 | struct bgp *bgp = NULL; | |
11635 | afi_t afi = AFI_IP6; | |
11636 | safi_t safi = SAFI_UNICAST; | |
11637 | struct peer *peer; | |
11638 | enum bgp_show_type sh_type = bgp_show_type_neighbor; | |
d62a17ae | 11639 | int idx = 0; |
9f049418 DS |
11640 | bool uj = use_json(argc, argv); |
11641 | ||
11642 | if (uj) | |
11643 | argc--; | |
bb46e94f | 11644 | |
d62a17ae | 11645 | bgp_vty_find_and_parse_afi_safi_bgp(vty, argv, argc, &idx, &afi, &safi, |
9f049418 | 11646 | &bgp, uj); |
d62a17ae | 11647 | if (!idx) |
11648 | return CMD_WARNING; | |
c493f2d8 | 11649 | |
d62a17ae | 11650 | /* neighbors <A.B.C.D|X:X::X:X|WORD> */ |
11651 | argv_find(argv, argc, "neighbors", &idx); | |
11652 | peerstr = argv[++idx]->arg; | |
8c3deaae | 11653 | |
d62a17ae | 11654 | peer = peer_lookup_in_view(vty, bgp, peerstr, uj); |
9e6e6f46 | 11655 | if (!peer) |
d62a17ae | 11656 | return CMD_WARNING; |
bb46e94f | 11657 | |
d62a17ae | 11658 | if (argv_find(argv, argc, "flap-statistics", &idx)) |
11659 | sh_type = bgp_show_type_flap_neighbor; | |
11660 | else if (argv_find(argv, argc, "dampened-routes", &idx)) | |
11661 | sh_type = bgp_show_type_damp_neighbor; | |
11662 | else if (argv_find(argv, argc, "routes", &idx)) | |
11663 | sh_type = bgp_show_type_neighbor; | |
2525cf39 | 11664 | |
d62a17ae | 11665 | return bgp_show_neighbor_route(vty, peer, afi, safi, sh_type, uj); |
50ef26d4 | 11666 | } |
6b0655a2 | 11667 | |
734b349e | 11668 | struct bgp_table *bgp_distance_table[AFI_MAX][SAFI_MAX]; |
718e3744 | 11669 | |
d62a17ae | 11670 | struct bgp_distance { |
11671 | /* Distance value for the IP source prefix. */ | |
d7c0a89a | 11672 | uint8_t distance; |
718e3744 | 11673 | |
d62a17ae | 11674 | /* Name of the access-list to be matched. */ |
11675 | char *access_list; | |
718e3744 | 11676 | }; |
11677 | ||
4f280b15 LB |
11678 | DEFUN (show_bgp_afi_vpn_rd_route, |
11679 | show_bgp_afi_vpn_rd_route_cmd, | |
d114b977 | 11680 | "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 |
11681 | SHOW_STR |
11682 | BGP_STR | |
11683 | BGP_AFI_HELP_STR | |
11684 | "Address Family modifier\n" | |
11685 | "Display information for a route distinguisher\n" | |
11686 | "Route Distinguisher\n" | |
7395a2c9 DS |
11687 | "Network in the BGP routing table to display\n" |
11688 | "Network in the BGP routing table to display\n" | |
11689 | JSON_STR) | |
4f280b15 | 11690 | { |
d62a17ae | 11691 | int ret; |
11692 | struct prefix_rd prd; | |
11693 | afi_t afi = AFI_MAX; | |
11694 | int idx = 0; | |
4f280b15 | 11695 | |
ff6566f3 DS |
11696 | if (!argv_find_and_parse_afi(argv, argc, &idx, &afi)) { |
11697 | vty_out(vty, "%% Malformed Address Family\n"); | |
11698 | return CMD_WARNING; | |
11699 | } | |
11700 | ||
d62a17ae | 11701 | ret = str2prefix_rd(argv[5]->arg, &prd); |
11702 | if (!ret) { | |
11703 | vty_out(vty, "%% Malformed Route Distinguisher\n"); | |
11704 | return CMD_WARNING; | |
11705 | } | |
ff6566f3 | 11706 | |
d62a17ae | 11707 | return bgp_show_route(vty, NULL, argv[6]->arg, afi, SAFI_MPLS_VPN, &prd, |
360660c6 | 11708 | 0, BGP_PATH_SHOW_ALL, use_json(argc, argv)); |
4f280b15 LB |
11709 | } |
11710 | ||
d62a17ae | 11711 | static struct bgp_distance *bgp_distance_new(void) |
718e3744 | 11712 | { |
d62a17ae | 11713 | return XCALLOC(MTYPE_BGP_DISTANCE, sizeof(struct bgp_distance)); |
718e3744 | 11714 | } |
11715 | ||
d62a17ae | 11716 | static void bgp_distance_free(struct bgp_distance *bdistance) |
718e3744 | 11717 | { |
d62a17ae | 11718 | XFREE(MTYPE_BGP_DISTANCE, bdistance); |
718e3744 | 11719 | } |
11720 | ||
d62a17ae | 11721 | static int bgp_distance_set(struct vty *vty, const char *distance_str, |
11722 | const char *ip_str, const char *access_list_str) | |
718e3744 | 11723 | { |
d62a17ae | 11724 | int ret; |
11725 | afi_t afi; | |
11726 | safi_t safi; | |
11727 | struct prefix p; | |
d7c0a89a | 11728 | uint8_t distance; |
d62a17ae | 11729 | struct bgp_node *rn; |
11730 | struct bgp_distance *bdistance; | |
718e3744 | 11731 | |
d62a17ae | 11732 | afi = bgp_node_afi(vty); |
11733 | safi = bgp_node_safi(vty); | |
734b349e | 11734 | |
d62a17ae | 11735 | ret = str2prefix(ip_str, &p); |
11736 | if (ret == 0) { | |
11737 | vty_out(vty, "Malformed prefix\n"); | |
11738 | return CMD_WARNING_CONFIG_FAILED; | |
11739 | } | |
718e3744 | 11740 | |
d62a17ae | 11741 | distance = atoi(distance_str); |
718e3744 | 11742 | |
d62a17ae | 11743 | /* Get BGP distance node. */ |
11744 | rn = bgp_node_get(bgp_distance_table[afi][safi], (struct prefix *)&p); | |
5b00b40e | 11745 | bdistance = bgp_node_get_bgp_distance_info(rn); |
ca2e160d | 11746 | if (bdistance) |
d62a17ae | 11747 | bgp_unlock_node(rn); |
ca2e160d | 11748 | else { |
d62a17ae | 11749 | bdistance = bgp_distance_new(); |
5b00b40e | 11750 | bgp_node_set_bgp_distance_info(rn, bdistance); |
d62a17ae | 11751 | } |
718e3744 | 11752 | |
d62a17ae | 11753 | /* Set distance value. */ |
11754 | bdistance->distance = distance; | |
718e3744 | 11755 | |
d62a17ae | 11756 | /* Reset access-list configuration. */ |
11757 | if (bdistance->access_list) { | |
11758 | XFREE(MTYPE_AS_LIST, bdistance->access_list); | |
11759 | bdistance->access_list = NULL; | |
11760 | } | |
11761 | if (access_list_str) | |
11762 | bdistance->access_list = | |
11763 | XSTRDUP(MTYPE_AS_LIST, access_list_str); | |
718e3744 | 11764 | |
d62a17ae | 11765 | return CMD_SUCCESS; |
718e3744 | 11766 | } |
11767 | ||
d62a17ae | 11768 | static int bgp_distance_unset(struct vty *vty, const char *distance_str, |
11769 | const char *ip_str, const char *access_list_str) | |
718e3744 | 11770 | { |
d62a17ae | 11771 | int ret; |
11772 | afi_t afi; | |
11773 | safi_t safi; | |
11774 | struct prefix p; | |
11775 | int distance; | |
11776 | struct bgp_node *rn; | |
11777 | struct bgp_distance *bdistance; | |
718e3744 | 11778 | |
d62a17ae | 11779 | afi = bgp_node_afi(vty); |
11780 | safi = bgp_node_safi(vty); | |
734b349e | 11781 | |
d62a17ae | 11782 | ret = str2prefix(ip_str, &p); |
11783 | if (ret == 0) { | |
11784 | vty_out(vty, "Malformed prefix\n"); | |
11785 | return CMD_WARNING_CONFIG_FAILED; | |
11786 | } | |
718e3744 | 11787 | |
d62a17ae | 11788 | rn = bgp_node_lookup(bgp_distance_table[afi][safi], |
11789 | (struct prefix *)&p); | |
11790 | if (!rn) { | |
11791 | vty_out(vty, "Can't find specified prefix\n"); | |
11792 | return CMD_WARNING_CONFIG_FAILED; | |
11793 | } | |
718e3744 | 11794 | |
5b00b40e | 11795 | bdistance = bgp_node_get_bgp_distance_info(rn); |
d62a17ae | 11796 | distance = atoi(distance_str); |
1f9a9fff | 11797 | |
d62a17ae | 11798 | if (bdistance->distance != distance) { |
11799 | vty_out(vty, "Distance does not match configured\n"); | |
11800 | return CMD_WARNING_CONFIG_FAILED; | |
11801 | } | |
718e3744 | 11802 | |
0a22ddfb | 11803 | XFREE(MTYPE_AS_LIST, bdistance->access_list); |
d62a17ae | 11804 | bgp_distance_free(bdistance); |
718e3744 | 11805 | |
6f94b685 | 11806 | bgp_node_set_bgp_path_info(rn, NULL); |
d62a17ae | 11807 | bgp_unlock_node(rn); |
11808 | bgp_unlock_node(rn); | |
718e3744 | 11809 | |
d62a17ae | 11810 | return CMD_SUCCESS; |
718e3744 | 11811 | } |
11812 | ||
718e3744 | 11813 | /* Apply BGP information to distance method. */ |
40381db7 | 11814 | uint8_t bgp_distance_apply(struct prefix *p, struct bgp_path_info *pinfo, |
4b7e6066 | 11815 | afi_t afi, safi_t safi, struct bgp *bgp) |
d62a17ae | 11816 | { |
11817 | struct bgp_node *rn; | |
11818 | struct prefix q; | |
11819 | struct peer *peer; | |
11820 | struct bgp_distance *bdistance; | |
11821 | struct access_list *alist; | |
11822 | struct bgp_static *bgp_static; | |
11823 | ||
11824 | if (!bgp) | |
11825 | return 0; | |
11826 | ||
40381db7 | 11827 | peer = pinfo->peer; |
d62a17ae | 11828 | |
11829 | /* Check source address. */ | |
11830 | sockunion2hostprefix(&peer->su, &q); | |
11831 | rn = bgp_node_match(bgp_distance_table[afi][safi], &q); | |
11832 | if (rn) { | |
5b00b40e | 11833 | bdistance = bgp_node_get_bgp_distance_info(rn); |
d62a17ae | 11834 | bgp_unlock_node(rn); |
11835 | ||
11836 | if (bdistance->access_list) { | |
11837 | alist = access_list_lookup(afi, bdistance->access_list); | |
11838 | if (alist | |
11839 | && access_list_apply(alist, p) == FILTER_PERMIT) | |
11840 | return bdistance->distance; | |
11841 | } else | |
11842 | return bdistance->distance; | |
718e3744 | 11843 | } |
718e3744 | 11844 | |
d62a17ae | 11845 | /* Backdoor check. */ |
11846 | rn = bgp_node_lookup(bgp->route[afi][safi], p); | |
11847 | if (rn) { | |
5a8ba9fc | 11848 | bgp_static = bgp_node_get_bgp_static_info(rn); |
d62a17ae | 11849 | bgp_unlock_node(rn); |
718e3744 | 11850 | |
d62a17ae | 11851 | if (bgp_static->backdoor) { |
11852 | if (bgp->distance_local[afi][safi]) | |
11853 | return bgp->distance_local[afi][safi]; | |
11854 | else | |
11855 | return ZEBRA_IBGP_DISTANCE_DEFAULT; | |
11856 | } | |
718e3744 | 11857 | } |
718e3744 | 11858 | |
d62a17ae | 11859 | if (peer->sort == BGP_PEER_EBGP) { |
11860 | if (bgp->distance_ebgp[afi][safi]) | |
11861 | return bgp->distance_ebgp[afi][safi]; | |
11862 | return ZEBRA_EBGP_DISTANCE_DEFAULT; | |
11863 | } else { | |
11864 | if (bgp->distance_ibgp[afi][safi]) | |
11865 | return bgp->distance_ibgp[afi][safi]; | |
11866 | return ZEBRA_IBGP_DISTANCE_DEFAULT; | |
11867 | } | |
718e3744 | 11868 | } |
11869 | ||
11870 | DEFUN (bgp_distance, | |
11871 | bgp_distance_cmd, | |
6147e2c6 | 11872 | "distance bgp (1-255) (1-255) (1-255)", |
718e3744 | 11873 | "Define an administrative distance\n" |
11874 | "BGP distance\n" | |
11875 | "Distance for routes external to the AS\n" | |
11876 | "Distance for routes internal to the AS\n" | |
11877 | "Distance for local routes\n") | |
11878 | { | |
d62a17ae | 11879 | VTY_DECLVAR_CONTEXT(bgp, bgp); |
11880 | int idx_number = 2; | |
11881 | int idx_number_2 = 3; | |
11882 | int idx_number_3 = 4; | |
11883 | afi_t afi; | |
11884 | safi_t safi; | |
718e3744 | 11885 | |
d62a17ae | 11886 | afi = bgp_node_afi(vty); |
11887 | safi = bgp_node_safi(vty); | |
718e3744 | 11888 | |
d62a17ae | 11889 | bgp->distance_ebgp[afi][safi] = atoi(argv[idx_number]->arg); |
11890 | bgp->distance_ibgp[afi][safi] = atoi(argv[idx_number_2]->arg); | |
11891 | bgp->distance_local[afi][safi] = atoi(argv[idx_number_3]->arg); | |
11892 | return CMD_SUCCESS; | |
718e3744 | 11893 | } |
11894 | ||
11895 | DEFUN (no_bgp_distance, | |
11896 | no_bgp_distance_cmd, | |
a636c635 | 11897 | "no distance bgp [(1-255) (1-255) (1-255)]", |
718e3744 | 11898 | NO_STR |
11899 | "Define an administrative distance\n" | |
11900 | "BGP distance\n" | |
11901 | "Distance for routes external to the AS\n" | |
11902 | "Distance for routes internal to the AS\n" | |
11903 | "Distance for local routes\n") | |
11904 | { | |
d62a17ae | 11905 | VTY_DECLVAR_CONTEXT(bgp, bgp); |
11906 | afi_t afi; | |
11907 | safi_t safi; | |
718e3744 | 11908 | |
d62a17ae | 11909 | afi = bgp_node_afi(vty); |
11910 | safi = bgp_node_safi(vty); | |
718e3744 | 11911 | |
d62a17ae | 11912 | bgp->distance_ebgp[afi][safi] = 0; |
11913 | bgp->distance_ibgp[afi][safi] = 0; | |
11914 | bgp->distance_local[afi][safi] = 0; | |
11915 | return CMD_SUCCESS; | |
718e3744 | 11916 | } |
11917 | ||
718e3744 | 11918 | |
11919 | DEFUN (bgp_distance_source, | |
11920 | bgp_distance_source_cmd, | |
6147e2c6 | 11921 | "distance (1-255) A.B.C.D/M", |
718e3744 | 11922 | "Define an administrative distance\n" |
11923 | "Administrative distance\n" | |
11924 | "IP source prefix\n") | |
11925 | { | |
d62a17ae | 11926 | int idx_number = 1; |
11927 | int idx_ipv4_prefixlen = 2; | |
11928 | bgp_distance_set(vty, argv[idx_number]->arg, | |
11929 | argv[idx_ipv4_prefixlen]->arg, NULL); | |
11930 | return CMD_SUCCESS; | |
718e3744 | 11931 | } |
11932 | ||
11933 | DEFUN (no_bgp_distance_source, | |
11934 | no_bgp_distance_source_cmd, | |
6147e2c6 | 11935 | "no distance (1-255) A.B.C.D/M", |
718e3744 | 11936 | NO_STR |
11937 | "Define an administrative distance\n" | |
11938 | "Administrative distance\n" | |
11939 | "IP source prefix\n") | |
11940 | { | |
d62a17ae | 11941 | int idx_number = 2; |
11942 | int idx_ipv4_prefixlen = 3; | |
11943 | bgp_distance_unset(vty, argv[idx_number]->arg, | |
11944 | argv[idx_ipv4_prefixlen]->arg, NULL); | |
11945 | return CMD_SUCCESS; | |
718e3744 | 11946 | } |
11947 | ||
11948 | DEFUN (bgp_distance_source_access_list, | |
11949 | bgp_distance_source_access_list_cmd, | |
6147e2c6 | 11950 | "distance (1-255) A.B.C.D/M WORD", |
718e3744 | 11951 | "Define an administrative distance\n" |
11952 | "Administrative distance\n" | |
11953 | "IP source prefix\n" | |
11954 | "Access list name\n") | |
11955 | { | |
d62a17ae | 11956 | int idx_number = 1; |
11957 | int idx_ipv4_prefixlen = 2; | |
11958 | int idx_word = 3; | |
11959 | bgp_distance_set(vty, argv[idx_number]->arg, | |
11960 | argv[idx_ipv4_prefixlen]->arg, argv[idx_word]->arg); | |
11961 | return CMD_SUCCESS; | |
718e3744 | 11962 | } |
11963 | ||
11964 | DEFUN (no_bgp_distance_source_access_list, | |
11965 | no_bgp_distance_source_access_list_cmd, | |
6147e2c6 | 11966 | "no distance (1-255) A.B.C.D/M WORD", |
718e3744 | 11967 | NO_STR |
11968 | "Define an administrative distance\n" | |
11969 | "Administrative distance\n" | |
11970 | "IP source prefix\n" | |
11971 | "Access list name\n") | |
11972 | { | |
d62a17ae | 11973 | int idx_number = 2; |
11974 | int idx_ipv4_prefixlen = 3; | |
11975 | int idx_word = 4; | |
11976 | bgp_distance_unset(vty, argv[idx_number]->arg, | |
11977 | argv[idx_ipv4_prefixlen]->arg, argv[idx_word]->arg); | |
11978 | return CMD_SUCCESS; | |
718e3744 | 11979 | } |
6b0655a2 | 11980 | |
734b349e MZ |
11981 | DEFUN (ipv6_bgp_distance_source, |
11982 | ipv6_bgp_distance_source_cmd, | |
39e92c06 | 11983 | "distance (1-255) X:X::X:X/M", |
734b349e MZ |
11984 | "Define an administrative distance\n" |
11985 | "Administrative distance\n" | |
11986 | "IP source prefix\n") | |
11987 | { | |
d62a17ae | 11988 | bgp_distance_set(vty, argv[1]->arg, argv[2]->arg, NULL); |
11989 | return CMD_SUCCESS; | |
734b349e MZ |
11990 | } |
11991 | ||
11992 | DEFUN (no_ipv6_bgp_distance_source, | |
11993 | no_ipv6_bgp_distance_source_cmd, | |
39e92c06 | 11994 | "no distance (1-255) X:X::X:X/M", |
734b349e MZ |
11995 | NO_STR |
11996 | "Define an administrative distance\n" | |
11997 | "Administrative distance\n" | |
11998 | "IP source prefix\n") | |
11999 | { | |
d62a17ae | 12000 | bgp_distance_unset(vty, argv[2]->arg, argv[3]->arg, NULL); |
12001 | return CMD_SUCCESS; | |
734b349e MZ |
12002 | } |
12003 | ||
12004 | DEFUN (ipv6_bgp_distance_source_access_list, | |
12005 | ipv6_bgp_distance_source_access_list_cmd, | |
39e92c06 | 12006 | "distance (1-255) X:X::X:X/M WORD", |
734b349e MZ |
12007 | "Define an administrative distance\n" |
12008 | "Administrative distance\n" | |
12009 | "IP source prefix\n" | |
12010 | "Access list name\n") | |
12011 | { | |
d62a17ae | 12012 | bgp_distance_set(vty, argv[1]->arg, argv[2]->arg, argv[3]->arg); |
12013 | return CMD_SUCCESS; | |
734b349e MZ |
12014 | } |
12015 | ||
12016 | DEFUN (no_ipv6_bgp_distance_source_access_list, | |
12017 | no_ipv6_bgp_distance_source_access_list_cmd, | |
39e92c06 | 12018 | "no distance (1-255) X:X::X:X/M WORD", |
734b349e MZ |
12019 | NO_STR |
12020 | "Define an administrative distance\n" | |
12021 | "Administrative distance\n" | |
12022 | "IP source prefix\n" | |
12023 | "Access list name\n") | |
12024 | { | |
d62a17ae | 12025 | bgp_distance_unset(vty, argv[2]->arg, argv[3]->arg, argv[4]->arg); |
12026 | return CMD_SUCCESS; | |
734b349e MZ |
12027 | } |
12028 | ||
718e3744 | 12029 | DEFUN (bgp_damp_set, |
12030 | bgp_damp_set_cmd, | |
31500417 | 12031 | "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]", |
718e3744 | 12032 | "BGP Specific commands\n" |
12033 | "Enable route-flap dampening\n" | |
12034 | "Half-life time for the penalty\n" | |
12035 | "Value to start reusing a route\n" | |
12036 | "Value to start suppressing a route\n" | |
12037 | "Maximum duration to suppress a stable route\n") | |
12038 | { | |
d62a17ae | 12039 | VTY_DECLVAR_CONTEXT(bgp, bgp); |
12040 | int idx_half_life = 2; | |
12041 | int idx_reuse = 3; | |
12042 | int idx_suppress = 4; | |
12043 | int idx_max_suppress = 5; | |
12044 | int half = DEFAULT_HALF_LIFE * 60; | |
12045 | int reuse = DEFAULT_REUSE; | |
12046 | int suppress = DEFAULT_SUPPRESS; | |
12047 | int max = 4 * half; | |
12048 | ||
12049 | if (argc == 6) { | |
12050 | half = atoi(argv[idx_half_life]->arg) * 60; | |
12051 | reuse = atoi(argv[idx_reuse]->arg); | |
12052 | suppress = atoi(argv[idx_suppress]->arg); | |
12053 | max = atoi(argv[idx_max_suppress]->arg) * 60; | |
12054 | } else if (argc == 3) { | |
12055 | half = atoi(argv[idx_half_life]->arg) * 60; | |
12056 | max = 4 * half; | |
12057 | } | |
718e3744 | 12058 | |
d62a17ae | 12059 | if (suppress < reuse) { |
12060 | vty_out(vty, | |
12061 | "Suppress value cannot be less than reuse value \n"); | |
12062 | return 0; | |
12063 | } | |
7ebe9748 | 12064 | |
d62a17ae | 12065 | return bgp_damp_enable(bgp, bgp_node_afi(vty), bgp_node_safi(vty), half, |
12066 | reuse, suppress, max); | |
718e3744 | 12067 | } |
12068 | ||
718e3744 | 12069 | DEFUN (bgp_damp_unset, |
12070 | bgp_damp_unset_cmd, | |
d04c479d | 12071 | "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]", |
718e3744 | 12072 | NO_STR |
12073 | "BGP Specific commands\n" | |
16cedbb0 QY |
12074 | "Enable route-flap dampening\n" |
12075 | "Half-life time for the penalty\n" | |
12076 | "Value to start reusing a route\n" | |
12077 | "Value to start suppressing a route\n" | |
12078 | "Maximum duration to suppress a stable route\n") | |
718e3744 | 12079 | { |
d62a17ae | 12080 | VTY_DECLVAR_CONTEXT(bgp, bgp); |
12081 | return bgp_damp_disable(bgp, bgp_node_afi(vty), bgp_node_safi(vty)); | |
718e3744 | 12082 | } |
12083 | ||
718e3744 | 12084 | /* Display specified route of BGP table. */ |
d62a17ae | 12085 | static int bgp_clear_damp_route(struct vty *vty, const char *view_name, |
12086 | const char *ip_str, afi_t afi, safi_t safi, | |
12087 | struct prefix_rd *prd, int prefix_check) | |
12088 | { | |
12089 | int ret; | |
12090 | struct prefix match; | |
12091 | struct bgp_node *rn; | |
12092 | struct bgp_node *rm; | |
40381db7 DS |
12093 | struct bgp_path_info *pi; |
12094 | struct bgp_path_info *pi_temp; | |
d62a17ae | 12095 | struct bgp *bgp; |
12096 | struct bgp_table *table; | |
12097 | ||
12098 | /* BGP structure lookup. */ | |
12099 | if (view_name) { | |
12100 | bgp = bgp_lookup_by_name(view_name); | |
12101 | if (bgp == NULL) { | |
12102 | vty_out(vty, "%% Can't find BGP instance %s\n", | |
12103 | view_name); | |
12104 | return CMD_WARNING; | |
12105 | } | |
12106 | } else { | |
12107 | bgp = bgp_get_default(); | |
12108 | if (bgp == NULL) { | |
12109 | vty_out(vty, "%% No BGP process is configured\n"); | |
12110 | return CMD_WARNING; | |
12111 | } | |
718e3744 | 12112 | } |
718e3744 | 12113 | |
d62a17ae | 12114 | /* Check IP address argument. */ |
12115 | ret = str2prefix(ip_str, &match); | |
12116 | if (!ret) { | |
12117 | vty_out(vty, "%% address is malformed\n"); | |
12118 | return CMD_WARNING; | |
12119 | } | |
718e3744 | 12120 | |
d62a17ae | 12121 | match.family = afi2family(afi); |
12122 | ||
12123 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP) | |
12124 | || (safi == SAFI_EVPN)) { | |
12125 | for (rn = bgp_table_top(bgp->rib[AFI_IP][safi]); rn; | |
12126 | rn = bgp_route_next(rn)) { | |
12127 | if (prd && memcmp(rn->p.u.val, prd->val, 8) != 0) | |
12128 | continue; | |
67009e22 DS |
12129 | table = bgp_node_get_bgp_table_info(rn); |
12130 | if (!table) | |
ea47320b DL |
12131 | continue; |
12132 | if ((rm = bgp_node_match(table, &match)) == NULL) | |
12133 | continue; | |
d62a17ae | 12134 | |
ea47320b DL |
12135 | if (!prefix_check |
12136 | || rm->p.prefixlen == match.prefixlen) { | |
6f94b685 | 12137 | pi = bgp_node_get_bgp_path_info(rm); |
40381db7 DS |
12138 | while (pi) { |
12139 | if (pi->extra && pi->extra->damp_info) { | |
12140 | pi_temp = pi->next; | |
ea47320b | 12141 | bgp_damp_info_free( |
40381db7 | 12142 | pi->extra->damp_info, |
60466a63 | 12143 | 1); |
40381db7 | 12144 | pi = pi_temp; |
ea47320b | 12145 | } else |
40381db7 | 12146 | pi = pi->next; |
d62a17ae | 12147 | } |
ea47320b DL |
12148 | } |
12149 | ||
12150 | bgp_unlock_node(rm); | |
d62a17ae | 12151 | } |
12152 | } else { | |
12153 | if ((rn = bgp_node_match(bgp->rib[afi][safi], &match)) | |
12154 | != NULL) { | |
12155 | if (!prefix_check | |
12156 | || rn->p.prefixlen == match.prefixlen) { | |
6f94b685 | 12157 | pi = bgp_node_get_bgp_path_info(rn); |
40381db7 DS |
12158 | while (pi) { |
12159 | if (pi->extra && pi->extra->damp_info) { | |
12160 | pi_temp = pi->next; | |
d62a17ae | 12161 | bgp_damp_info_free( |
40381db7 | 12162 | pi->extra->damp_info, |
d62a17ae | 12163 | 1); |
40381db7 | 12164 | pi = pi_temp; |
d62a17ae | 12165 | } else |
40381db7 | 12166 | pi = pi->next; |
d62a17ae | 12167 | } |
12168 | } | |
12169 | ||
12170 | bgp_unlock_node(rn); | |
12171 | } | |
12172 | } | |
718e3744 | 12173 | |
d62a17ae | 12174 | return CMD_SUCCESS; |
718e3744 | 12175 | } |
12176 | ||
12177 | DEFUN (clear_ip_bgp_dampening, | |
12178 | clear_ip_bgp_dampening_cmd, | |
12179 | "clear ip bgp dampening", | |
12180 | CLEAR_STR | |
12181 | IP_STR | |
12182 | BGP_STR | |
12183 | "Clear route flap dampening information\n") | |
12184 | { | |
d62a17ae | 12185 | bgp_damp_info_clean(); |
12186 | return CMD_SUCCESS; | |
718e3744 | 12187 | } |
12188 | ||
12189 | DEFUN (clear_ip_bgp_dampening_prefix, | |
12190 | clear_ip_bgp_dampening_prefix_cmd, | |
12191 | "clear ip bgp dampening A.B.C.D/M", | |
12192 | CLEAR_STR | |
12193 | IP_STR | |
12194 | BGP_STR | |
12195 | "Clear route flap dampening information\n" | |
0c7b1b01 | 12196 | "IPv4 prefix\n") |
718e3744 | 12197 | { |
d62a17ae | 12198 | int idx_ipv4_prefixlen = 4; |
12199 | return bgp_clear_damp_route(vty, NULL, argv[idx_ipv4_prefixlen]->arg, | |
12200 | AFI_IP, SAFI_UNICAST, NULL, 1); | |
718e3744 | 12201 | } |
12202 | ||
12203 | DEFUN (clear_ip_bgp_dampening_address, | |
12204 | clear_ip_bgp_dampening_address_cmd, | |
12205 | "clear ip bgp dampening A.B.C.D", | |
12206 | CLEAR_STR | |
12207 | IP_STR | |
12208 | BGP_STR | |
12209 | "Clear route flap dampening information\n" | |
12210 | "Network to clear damping information\n") | |
12211 | { | |
d62a17ae | 12212 | int idx_ipv4 = 4; |
12213 | return bgp_clear_damp_route(vty, NULL, argv[idx_ipv4]->arg, AFI_IP, | |
12214 | SAFI_UNICAST, NULL, 0); | |
718e3744 | 12215 | } |
12216 | ||
12217 | DEFUN (clear_ip_bgp_dampening_address_mask, | |
12218 | clear_ip_bgp_dampening_address_mask_cmd, | |
12219 | "clear ip bgp dampening A.B.C.D A.B.C.D", | |
12220 | CLEAR_STR | |
12221 | IP_STR | |
12222 | BGP_STR | |
12223 | "Clear route flap dampening information\n" | |
12224 | "Network to clear damping information\n" | |
12225 | "Network mask\n") | |
12226 | { | |
d62a17ae | 12227 | int idx_ipv4 = 4; |
12228 | int idx_ipv4_2 = 5; | |
12229 | int ret; | |
12230 | char prefix_str[BUFSIZ]; | |
718e3744 | 12231 | |
d62a17ae | 12232 | ret = netmask_str2prefix_str(argv[idx_ipv4]->arg, argv[idx_ipv4_2]->arg, |
12233 | prefix_str); | |
12234 | if (!ret) { | |
12235 | vty_out(vty, "%% Inconsistent address and mask\n"); | |
12236 | return CMD_WARNING; | |
12237 | } | |
718e3744 | 12238 | |
d62a17ae | 12239 | return bgp_clear_damp_route(vty, NULL, prefix_str, AFI_IP, SAFI_UNICAST, |
12240 | NULL, 0); | |
718e3744 | 12241 | } |
6b0655a2 | 12242 | |
e3b78da8 | 12243 | static void show_bgp_peerhash_entry(struct hash_bucket *bucket, void *arg) |
825d9834 DS |
12244 | { |
12245 | struct vty *vty = arg; | |
e3b78da8 | 12246 | struct peer *peer = bucket->data; |
825d9834 DS |
12247 | char buf[SU_ADDRSTRLEN]; |
12248 | ||
12249 | vty_out(vty, "\tPeer: %s %s\n", peer->host, | |
12250 | sockunion2str(&peer->su, buf, sizeof(buf))); | |
12251 | } | |
12252 | ||
12253 | DEFUN (show_bgp_peerhash, | |
12254 | show_bgp_peerhash_cmd, | |
12255 | "show bgp peerhash", | |
12256 | SHOW_STR | |
12257 | BGP_STR | |
12258 | "Display information about the BGP peerhash\n") | |
12259 | { | |
12260 | struct list *instances = bm->bgp; | |
12261 | struct listnode *node; | |
12262 | struct bgp *bgp; | |
12263 | ||
12264 | for (ALL_LIST_ELEMENTS_RO(instances, node, bgp)) { | |
12265 | vty_out(vty, "BGP: %s\n", bgp->name); | |
12266 | hash_iterate(bgp->peerhash, show_bgp_peerhash_entry, | |
12267 | vty); | |
12268 | } | |
12269 | ||
12270 | return CMD_SUCCESS; | |
12271 | } | |
12272 | ||
587ff0fd | 12273 | /* also used for encap safi */ |
2b791107 DL |
12274 | static void bgp_config_write_network_vpn(struct vty *vty, struct bgp *bgp, |
12275 | afi_t afi, safi_t safi) | |
d62a17ae | 12276 | { |
12277 | struct bgp_node *prn; | |
12278 | struct bgp_node *rn; | |
12279 | struct bgp_table *table; | |
12280 | struct prefix *p; | |
12281 | struct prefix_rd *prd; | |
12282 | struct bgp_static *bgp_static; | |
12283 | mpls_label_t label; | |
12284 | char buf[SU_ADDRSTRLEN]; | |
12285 | char rdbuf[RD_ADDRSTRLEN]; | |
12286 | ||
12287 | /* Network configuration. */ | |
12288 | for (prn = bgp_table_top(bgp->route[afi][safi]); prn; | |
ea47320b | 12289 | prn = bgp_route_next(prn)) { |
67009e22 DS |
12290 | table = bgp_node_get_bgp_table_info(prn); |
12291 | if (!table) | |
ea47320b | 12292 | continue; |
d62a17ae | 12293 | |
60466a63 | 12294 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { |
5a8ba9fc | 12295 | bgp_static = bgp_node_get_bgp_static_info(rn); |
a78beeb5 | 12296 | if (bgp_static == NULL) |
ea47320b | 12297 | continue; |
d62a17ae | 12298 | |
ea47320b DL |
12299 | p = &rn->p; |
12300 | prd = (struct prefix_rd *)&prn->p; | |
d62a17ae | 12301 | |
ea47320b | 12302 | /* "network" configuration display. */ |
06b9f471 | 12303 | prefix_rd2str(prd, rdbuf, sizeof(rdbuf)); |
ea47320b DL |
12304 | label = decode_label(&bgp_static->label); |
12305 | ||
12306 | vty_out(vty, " network %s/%d rd %s", | |
12307 | inet_ntop(p->family, &p->u.prefix, buf, | |
12308 | SU_ADDRSTRLEN), | |
12309 | p->prefixlen, rdbuf); | |
12310 | if (safi == SAFI_MPLS_VPN) | |
12311 | vty_out(vty, " label %u", label); | |
12312 | ||
12313 | if (bgp_static->rmap.name) | |
12314 | vty_out(vty, " route-map %s", | |
12315 | bgp_static->rmap.name); | |
e2a86ad9 DS |
12316 | |
12317 | if (bgp_static->backdoor) | |
12318 | vty_out(vty, " backdoor"); | |
12319 | ||
ea47320b DL |
12320 | vty_out(vty, "\n"); |
12321 | } | |
12322 | } | |
d62a17ae | 12323 | } |
12324 | ||
2b791107 DL |
12325 | static void bgp_config_write_network_evpn(struct vty *vty, struct bgp *bgp, |
12326 | afi_t afi, safi_t safi) | |
d62a17ae | 12327 | { |
12328 | struct bgp_node *prn; | |
12329 | struct bgp_node *rn; | |
12330 | struct bgp_table *table; | |
12331 | struct prefix *p; | |
12332 | struct prefix_rd *prd; | |
12333 | struct bgp_static *bgp_static; | |
ff44f570 | 12334 | char buf[PREFIX_STRLEN * 2]; |
d62a17ae | 12335 | char buf2[SU_ADDRSTRLEN]; |
12336 | char rdbuf[RD_ADDRSTRLEN]; | |
12337 | ||
12338 | /* Network configuration. */ | |
12339 | for (prn = bgp_table_top(bgp->route[afi][safi]); prn; | |
ea47320b | 12340 | prn = bgp_route_next(prn)) { |
67009e22 DS |
12341 | table = bgp_node_get_bgp_table_info(prn); |
12342 | if (!table) | |
ea47320b | 12343 | continue; |
d62a17ae | 12344 | |
60466a63 | 12345 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { |
5a8ba9fc | 12346 | bgp_static = bgp_node_get_bgp_static_info(rn); |
a78beeb5 | 12347 | if (bgp_static == NULL) |
ea47320b | 12348 | continue; |
d62a17ae | 12349 | |
ea47320b DL |
12350 | char *macrouter = NULL; |
12351 | char *esi = NULL; | |
d62a17ae | 12352 | |
ea47320b DL |
12353 | if (bgp_static->router_mac) |
12354 | macrouter = prefix_mac2str( | |
12355 | bgp_static->router_mac, NULL, 0); | |
12356 | if (bgp_static->eth_s_id) | |
12357 | esi = esi2str(bgp_static->eth_s_id); | |
12358 | p = &rn->p; | |
12359 | prd = (struct prefix_rd *)&prn->p; | |
d62a17ae | 12360 | |
ea47320b | 12361 | /* "network" configuration display. */ |
06b9f471 | 12362 | prefix_rd2str(prd, rdbuf, sizeof(rdbuf)); |
197cb530 PG |
12363 | if (p->u.prefix_evpn.route_type == 5) { |
12364 | char local_buf[PREFIX_STRLEN]; | |
3714a385 | 12365 | uint8_t family = is_evpn_prefix_ipaddr_v4(( |
a4d82a8a PZ |
12366 | struct prefix_evpn *)p) |
12367 | ? AF_INET | |
12368 | : AF_INET6; | |
3714a385 | 12369 | inet_ntop(family, |
12370 | &p->u.prefix_evpn.prefix_addr.ip.ip.addr, | |
a4d82a8a PZ |
12371 | local_buf, PREFIX_STRLEN); |
12372 | sprintf(buf, "%s/%u", local_buf, | |
3714a385 | 12373 | p->u.prefix_evpn.prefix_addr.ip_prefix_length); |
197cb530 PG |
12374 | } else { |
12375 | prefix2str(p, buf, sizeof(buf)); | |
12376 | } | |
ea47320b | 12377 | |
a4d82a8a PZ |
12378 | if (bgp_static->gatewayIp.family == AF_INET |
12379 | || bgp_static->gatewayIp.family == AF_INET6) | |
197cb530 PG |
12380 | inet_ntop(bgp_static->gatewayIp.family, |
12381 | &bgp_static->gatewayIp.u.prefix, buf2, | |
12382 | sizeof(buf2)); | |
ea47320b | 12383 | vty_out(vty, |
7bcc8dac | 12384 | " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n", |
3714a385 | 12385 | buf, rdbuf, |
12386 | p->u.prefix_evpn.prefix_addr.eth_tag, | |
60466a63 | 12387 | decode_label(&bgp_static->label), esi, buf2, |
ea47320b DL |
12388 | macrouter); |
12389 | ||
0a22ddfb QY |
12390 | XFREE(MTYPE_TMP, macrouter); |
12391 | XFREE(MTYPE_TMP, esi); | |
ea47320b DL |
12392 | } |
12393 | } | |
3da6fcd5 PG |
12394 | } |
12395 | ||
718e3744 | 12396 | /* Configuration of static route announcement and aggregate |
12397 | information. */ | |
2b791107 DL |
12398 | void bgp_config_write_network(struct vty *vty, struct bgp *bgp, afi_t afi, |
12399 | safi_t safi) | |
d62a17ae | 12400 | { |
12401 | struct bgp_node *rn; | |
12402 | struct prefix *p; | |
12403 | struct bgp_static *bgp_static; | |
12404 | struct bgp_aggregate *bgp_aggregate; | |
12405 | char buf[SU_ADDRSTRLEN]; | |
12406 | ||
2b791107 DL |
12407 | if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP)) { |
12408 | bgp_config_write_network_vpn(vty, bgp, afi, safi); | |
12409 | return; | |
12410 | } | |
d62a17ae | 12411 | |
2b791107 DL |
12412 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { |
12413 | bgp_config_write_network_evpn(vty, bgp, afi, safi); | |
12414 | return; | |
12415 | } | |
d62a17ae | 12416 | |
12417 | /* Network configuration. */ | |
12418 | for (rn = bgp_table_top(bgp->route[afi][safi]); rn; | |
ea47320b | 12419 | rn = bgp_route_next(rn)) { |
5a8ba9fc | 12420 | bgp_static = bgp_node_get_bgp_static_info(rn); |
a78beeb5 | 12421 | if (bgp_static == NULL) |
ea47320b | 12422 | continue; |
d62a17ae | 12423 | |
ea47320b | 12424 | p = &rn->p; |
d62a17ae | 12425 | |
d8a9922d DS |
12426 | vty_out(vty, " network %s/%d", |
12427 | inet_ntop(p->family, &p->u.prefix, buf, SU_ADDRSTRLEN), | |
12428 | p->prefixlen); | |
d62a17ae | 12429 | |
ea47320b DL |
12430 | if (bgp_static->label_index != BGP_INVALID_LABEL_INDEX) |
12431 | vty_out(vty, " label-index %u", | |
12432 | bgp_static->label_index); | |
d62a17ae | 12433 | |
ea47320b DL |
12434 | if (bgp_static->rmap.name) |
12435 | vty_out(vty, " route-map %s", bgp_static->rmap.name); | |
e2a86ad9 DS |
12436 | |
12437 | if (bgp_static->backdoor) | |
12438 | vty_out(vty, " backdoor"); | |
718e3744 | 12439 | |
ea47320b DL |
12440 | vty_out(vty, "\n"); |
12441 | } | |
12442 | ||
d62a17ae | 12443 | /* Aggregate-address configuration. */ |
12444 | for (rn = bgp_table_top(bgp->aggregate[afi][safi]); rn; | |
ea47320b | 12445 | rn = bgp_route_next(rn)) { |
b613a918 | 12446 | bgp_aggregate = bgp_node_get_bgp_aggregate_info(rn); |
b1e62edd | 12447 | if (bgp_aggregate == NULL) |
ea47320b | 12448 | continue; |
d62a17ae | 12449 | |
ea47320b | 12450 | p = &rn->p; |
d62a17ae | 12451 | |
d8a9922d DS |
12452 | vty_out(vty, " aggregate-address %s/%d", |
12453 | inet_ntop(p->family, &p->u.prefix, buf, SU_ADDRSTRLEN), | |
12454 | p->prefixlen); | |
d62a17ae | 12455 | |
ea47320b DL |
12456 | if (bgp_aggregate->as_set) |
12457 | vty_out(vty, " as-set"); | |
d62a17ae | 12458 | |
ea47320b DL |
12459 | if (bgp_aggregate->summary_only) |
12460 | vty_out(vty, " summary-only"); | |
718e3744 | 12461 | |
ea47320b DL |
12462 | vty_out(vty, "\n"); |
12463 | } | |
d62a17ae | 12464 | } |
734b349e | 12465 | |
2b791107 | 12466 | void bgp_config_write_distance(struct vty *vty, struct bgp *bgp, afi_t afi, |
60466a63 | 12467 | safi_t safi) |
d62a17ae | 12468 | { |
12469 | struct bgp_node *rn; | |
12470 | struct bgp_distance *bdistance; | |
12471 | ||
12472 | /* Distance configuration. */ | |
12473 | if (bgp->distance_ebgp[afi][safi] && bgp->distance_ibgp[afi][safi] | |
12474 | && bgp->distance_local[afi][safi] | |
12475 | && (bgp->distance_ebgp[afi][safi] != ZEBRA_EBGP_DISTANCE_DEFAULT | |
12476 | || bgp->distance_ibgp[afi][safi] != ZEBRA_IBGP_DISTANCE_DEFAULT | |
12477 | || bgp->distance_local[afi][safi] | |
12478 | != ZEBRA_IBGP_DISTANCE_DEFAULT)) { | |
d62a17ae | 12479 | vty_out(vty, " distance bgp %d %d %d\n", |
12480 | bgp->distance_ebgp[afi][safi], | |
12481 | bgp->distance_ibgp[afi][safi], | |
12482 | bgp->distance_local[afi][safi]); | |
12483 | } | |
734b349e | 12484 | |
d62a17ae | 12485 | for (rn = bgp_table_top(bgp_distance_table[afi][safi]); rn; |
ca2e160d | 12486 | rn = bgp_route_next(rn)) { |
5b00b40e | 12487 | bdistance = bgp_node_get_bgp_distance_info(rn); |
ca2e160d | 12488 | if (bdistance != NULL) { |
d62a17ae | 12489 | char buf[PREFIX_STRLEN]; |
12490 | ||
d62a17ae | 12491 | vty_out(vty, " distance %d %s %s\n", |
12492 | bdistance->distance, | |
12493 | prefix2str(&rn->p, buf, sizeof(buf)), | |
12494 | bdistance->access_list ? bdistance->access_list | |
12495 | : ""); | |
12496 | } | |
ca2e160d | 12497 | } |
718e3744 | 12498 | } |
12499 | ||
12500 | /* Allocate routing table structure and install commands. */ | |
d62a17ae | 12501 | void bgp_route_init(void) |
12502 | { | |
12503 | afi_t afi; | |
12504 | safi_t safi; | |
12505 | ||
12506 | /* Init BGP distance table. */ | |
05c7a1cc | 12507 | FOREACH_AFI_SAFI (afi, safi) |
960035b2 | 12508 | bgp_distance_table[afi][safi] = bgp_table_init(NULL, afi, safi); |
d62a17ae | 12509 | |
12510 | /* IPv4 BGP commands. */ | |
12511 | install_element(BGP_NODE, &bgp_table_map_cmd); | |
12512 | install_element(BGP_NODE, &bgp_network_cmd); | |
d62a17ae | 12513 | install_element(BGP_NODE, &no_bgp_table_map_cmd); |
d62a17ae | 12514 | |
12515 | install_element(BGP_NODE, &aggregate_address_cmd); | |
12516 | install_element(BGP_NODE, &aggregate_address_mask_cmd); | |
12517 | install_element(BGP_NODE, &no_aggregate_address_cmd); | |
12518 | install_element(BGP_NODE, &no_aggregate_address_mask_cmd); | |
12519 | ||
12520 | /* IPv4 unicast configuration. */ | |
12521 | install_element(BGP_IPV4_NODE, &bgp_table_map_cmd); | |
12522 | install_element(BGP_IPV4_NODE, &bgp_network_cmd); | |
d62a17ae | 12523 | install_element(BGP_IPV4_NODE, &no_bgp_table_map_cmd); |
d62a17ae | 12524 | |
12525 | install_element(BGP_IPV4_NODE, &aggregate_address_cmd); | |
12526 | install_element(BGP_IPV4_NODE, &aggregate_address_mask_cmd); | |
12527 | install_element(BGP_IPV4_NODE, &no_aggregate_address_cmd); | |
12528 | install_element(BGP_IPV4_NODE, &no_aggregate_address_mask_cmd); | |
12529 | ||
12530 | /* IPv4 multicast configuration. */ | |
12531 | install_element(BGP_IPV4M_NODE, &bgp_table_map_cmd); | |
12532 | install_element(BGP_IPV4M_NODE, &bgp_network_cmd); | |
d62a17ae | 12533 | install_element(BGP_IPV4M_NODE, &no_bgp_table_map_cmd); |
d62a17ae | 12534 | install_element(BGP_IPV4M_NODE, &aggregate_address_cmd); |
12535 | install_element(BGP_IPV4M_NODE, &aggregate_address_mask_cmd); | |
12536 | install_element(BGP_IPV4M_NODE, &no_aggregate_address_cmd); | |
12537 | install_element(BGP_IPV4M_NODE, &no_aggregate_address_mask_cmd); | |
12538 | ||
12539 | /* IPv4 labeled-unicast configuration. */ | |
12540 | install_element(VIEW_NODE, &show_ip_bgp_instance_all_cmd); | |
12541 | install_element(VIEW_NODE, &show_ip_bgp_cmd); | |
7b2ff250 | 12542 | install_element(VIEW_NODE, &show_ip_bgp_json_cmd); |
d62a17ae | 12543 | install_element(VIEW_NODE, &show_ip_bgp_route_cmd); |
12544 | install_element(VIEW_NODE, &show_ip_bgp_regexp_cmd); | |
12545 | ||
12546 | install_element(VIEW_NODE, | |
12547 | &show_ip_bgp_instance_neighbor_advertised_route_cmd); | |
12548 | install_element(VIEW_NODE, &show_ip_bgp_neighbor_routes_cmd); | |
12549 | install_element(VIEW_NODE, | |
12550 | &show_ip_bgp_neighbor_received_prefix_filter_cmd); | |
d6902373 | 12551 | #ifdef KEEP_OLD_VPN_COMMANDS |
d62a17ae | 12552 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_route_prefix_cmd); |
d6902373 | 12553 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
d62a17ae | 12554 | install_element(VIEW_NODE, &show_bgp_afi_vpn_rd_route_cmd); |
12555 | install_element(VIEW_NODE, | |
12556 | &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd); | |
57d187bc | 12557 | |
d62a17ae | 12558 | /* BGP dampening clear commands */ |
12559 | install_element(ENABLE_NODE, &clear_ip_bgp_dampening_cmd); | |
12560 | install_element(ENABLE_NODE, &clear_ip_bgp_dampening_prefix_cmd); | |
718e3744 | 12561 | |
d62a17ae | 12562 | install_element(ENABLE_NODE, &clear_ip_bgp_dampening_address_cmd); |
12563 | install_element(ENABLE_NODE, &clear_ip_bgp_dampening_address_mask_cmd); | |
12564 | ||
12565 | /* prefix count */ | |
12566 | install_element(ENABLE_NODE, | |
12567 | &show_ip_bgp_instance_neighbor_prefix_counts_cmd); | |
d6902373 | 12568 | #ifdef KEEP_OLD_VPN_COMMANDS |
d62a17ae | 12569 | install_element(ENABLE_NODE, |
12570 | &show_ip_bgp_vpn_neighbor_prefix_counts_cmd); | |
d6902373 | 12571 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
ff7924f6 | 12572 | |
d62a17ae | 12573 | /* New config IPv6 BGP commands. */ |
12574 | install_element(BGP_IPV6_NODE, &bgp_table_map_cmd); | |
12575 | install_element(BGP_IPV6_NODE, &ipv6_bgp_network_cmd); | |
d62a17ae | 12576 | install_element(BGP_IPV6_NODE, &no_bgp_table_map_cmd); |
d62a17ae | 12577 | |
12578 | install_element(BGP_IPV6_NODE, &ipv6_aggregate_address_cmd); | |
12579 | install_element(BGP_IPV6_NODE, &no_ipv6_aggregate_address_cmd); | |
12580 | ||
12581 | install_element(BGP_IPV6M_NODE, &ipv6_bgp_network_cmd); | |
d62a17ae | 12582 | |
d62a17ae | 12583 | install_element(BGP_NODE, &bgp_distance_cmd); |
12584 | install_element(BGP_NODE, &no_bgp_distance_cmd); | |
12585 | install_element(BGP_NODE, &bgp_distance_source_cmd); | |
12586 | install_element(BGP_NODE, &no_bgp_distance_source_cmd); | |
12587 | install_element(BGP_NODE, &bgp_distance_source_access_list_cmd); | |
12588 | install_element(BGP_NODE, &no_bgp_distance_source_access_list_cmd); | |
12589 | install_element(BGP_IPV4_NODE, &bgp_distance_cmd); | |
12590 | install_element(BGP_IPV4_NODE, &no_bgp_distance_cmd); | |
12591 | install_element(BGP_IPV4_NODE, &bgp_distance_source_cmd); | |
12592 | install_element(BGP_IPV4_NODE, &no_bgp_distance_source_cmd); | |
12593 | install_element(BGP_IPV4_NODE, &bgp_distance_source_access_list_cmd); | |
12594 | install_element(BGP_IPV4_NODE, &no_bgp_distance_source_access_list_cmd); | |
12595 | install_element(BGP_IPV4M_NODE, &bgp_distance_cmd); | |
12596 | install_element(BGP_IPV4M_NODE, &no_bgp_distance_cmd); | |
12597 | install_element(BGP_IPV4M_NODE, &bgp_distance_source_cmd); | |
12598 | install_element(BGP_IPV4M_NODE, &no_bgp_distance_source_cmd); | |
12599 | install_element(BGP_IPV4M_NODE, &bgp_distance_source_access_list_cmd); | |
12600 | install_element(BGP_IPV4M_NODE, | |
12601 | &no_bgp_distance_source_access_list_cmd); | |
12602 | install_element(BGP_IPV6_NODE, &bgp_distance_cmd); | |
12603 | install_element(BGP_IPV6_NODE, &no_bgp_distance_cmd); | |
12604 | install_element(BGP_IPV6_NODE, &ipv6_bgp_distance_source_cmd); | |
12605 | install_element(BGP_IPV6_NODE, &no_ipv6_bgp_distance_source_cmd); | |
12606 | install_element(BGP_IPV6_NODE, | |
12607 | &ipv6_bgp_distance_source_access_list_cmd); | |
12608 | install_element(BGP_IPV6_NODE, | |
12609 | &no_ipv6_bgp_distance_source_access_list_cmd); | |
12610 | install_element(BGP_IPV6M_NODE, &bgp_distance_cmd); | |
12611 | install_element(BGP_IPV6M_NODE, &no_bgp_distance_cmd); | |
12612 | install_element(BGP_IPV6M_NODE, &ipv6_bgp_distance_source_cmd); | |
12613 | install_element(BGP_IPV6M_NODE, &no_ipv6_bgp_distance_source_cmd); | |
12614 | install_element(BGP_IPV6M_NODE, | |
12615 | &ipv6_bgp_distance_source_access_list_cmd); | |
12616 | install_element(BGP_IPV6M_NODE, | |
12617 | &no_ipv6_bgp_distance_source_access_list_cmd); | |
12618 | ||
12619 | install_element(BGP_NODE, &bgp_damp_set_cmd); | |
12620 | install_element(BGP_NODE, &bgp_damp_unset_cmd); | |
12621 | install_element(BGP_IPV4_NODE, &bgp_damp_set_cmd); | |
12622 | install_element(BGP_IPV4_NODE, &bgp_damp_unset_cmd); | |
12623 | ||
12624 | /* IPv4 Multicast Mode */ | |
12625 | install_element(BGP_IPV4M_NODE, &bgp_damp_set_cmd); | |
12626 | install_element(BGP_IPV4M_NODE, &bgp_damp_unset_cmd); | |
12627 | ||
12628 | /* Large Communities */ | |
12629 | install_element(VIEW_NODE, &show_ip_bgp_large_community_list_cmd); | |
12630 | install_element(VIEW_NODE, &show_ip_bgp_large_community_cmd); | |
dba3c1d3 PG |
12631 | |
12632 | /* show bgp ipv4 flowspec detailed */ | |
12633 | install_element(VIEW_NODE, &show_ip_bgp_flowspec_routes_detailed_cmd); | |
12634 | ||
825d9834 | 12635 | install_element(VIEW_NODE, &show_bgp_peerhash_cmd); |
d62a17ae | 12636 | } |
12637 | ||
12638 | void bgp_route_finish(void) | |
12639 | { | |
12640 | afi_t afi; | |
12641 | safi_t safi; | |
12642 | ||
05c7a1cc QY |
12643 | FOREACH_AFI_SAFI (afi, safi) { |
12644 | bgp_table_unlock(bgp_distance_table[afi][safi]); | |
12645 | bgp_distance_table[afi][safi] = NULL; | |
12646 | } | |
228da428 | 12647 | } |