]>
Commit | Line | Data |
---|---|---|
718e3744 | 1 | /* MPLS-VPN |
896014f4 DL |
2 | * Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org> |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "prefix.h" | |
25 | #include "log.h" | |
26 | #include "memory.h" | |
27 | #include "stream.h" | |
3f9c7369 | 28 | #include "queue.h" |
039f3a34 | 29 | #include "filter.h" |
ddb5b488 | 30 | #include "mpls.h" |
b9c7bc5a PZ |
31 | #include "json.h" |
32 | #include "zclient.h" | |
9bedbb1e | 33 | |
718e3744 | 34 | #include "bgpd/bgpd.h" |
ddb5b488 | 35 | #include "bgpd/bgp_debug.h" |
718e3744 | 36 | #include "bgpd/bgp_table.h" |
37 | #include "bgpd/bgp_route.h" | |
38 | #include "bgpd/bgp_attr.h" | |
9bedbb1e | 39 | #include "bgpd/bgp_label.h" |
718e3744 | 40 | #include "bgpd/bgp_mplsvpn.h" |
48a5452b | 41 | #include "bgpd/bgp_packet.h" |
3f227172 | 42 | #include "bgpd/bgp_vty.h" |
784d3a42 | 43 | #include "bgpd/bgp_vpn.h" |
ddb5b488 PZ |
44 | #include "bgpd/bgp_ecommunity.h" |
45 | #include "bgpd/bgp_zebra.h" | |
46 | #include "bgpd/bgp_nexthop.h" | |
960035b2 | 47 | #include "bgpd/bgp_nht.h" |
718e3744 | 48 | |
65efcfce | 49 | #if ENABLE_BGP_VNC |
f8b6f499 | 50 | #include "bgpd/rfapi/rfapi_backend.h" |
65efcfce LB |
51 | #endif |
52 | ||
ddb5b488 PZ |
53 | /* |
54 | * Definitions and external declarations. | |
55 | */ | |
56 | extern struct zclient *zclient; | |
57 | ||
d62a17ae | 58 | extern int argv_find_and_parse_vpnvx(struct cmd_token **argv, int argc, |
59 | int *index, afi_t *afi) | |
3f227172 | 60 | { |
d62a17ae | 61 | int ret = 0; |
62 | if (argv_find(argv, argc, "vpnv4", index)) { | |
63 | ret = 1; | |
64 | if (afi) | |
65 | *afi = AFI_IP; | |
66 | } else if (argv_find(argv, argc, "vpnv6", index)) { | |
67 | ret = 1; | |
68 | if (afi) | |
69 | *afi = AFI_IP6; | |
70 | } | |
71 | return ret; | |
3f227172 PG |
72 | } |
73 | ||
d7c0a89a | 74 | uint32_t decode_label(mpls_label_t *label_pnt) |
718e3744 | 75 | { |
d7c0a89a QY |
76 | uint32_t l; |
77 | uint8_t *pnt = (uint8_t *)label_pnt; | |
718e3744 | 78 | |
d7c0a89a QY |
79 | l = ((uint32_t)*pnt++ << 12); |
80 | l |= (uint32_t)*pnt++ << 4; | |
81 | l |= (uint32_t)((*pnt & 0xf0) >> 4); | |
d62a17ae | 82 | return l; |
718e3744 | 83 | } |
84 | ||
d62a17ae | 85 | void encode_label(mpls_label_t label, mpls_label_t *label_pnt) |
65efcfce | 86 | { |
d7c0a89a | 87 | uint8_t *pnt = (uint8_t *)label_pnt; |
d62a17ae | 88 | if (pnt == NULL) |
89 | return; | |
90 | *pnt++ = (label >> 12) & 0xff; | |
91 | *pnt++ = (label >> 4) & 0xff; | |
92 | *pnt++ = ((label << 4) + 1) & 0xff; /* S=1 */ | |
65efcfce LB |
93 | } |
94 | ||
d62a17ae | 95 | int bgp_nlri_parse_vpn(struct peer *peer, struct attr *attr, |
96 | struct bgp_nlri *packet) | |
718e3744 | 97 | { |
d7c0a89a QY |
98 | uint8_t *pnt; |
99 | uint8_t *lim; | |
d62a17ae | 100 | struct prefix p; |
101 | int psize = 0; | |
102 | int prefixlen; | |
d7c0a89a | 103 | uint16_t type; |
d62a17ae | 104 | struct rd_as rd_as; |
105 | struct rd_ip rd_ip; | |
106 | struct prefix_rd prd; | |
ddb5b488 | 107 | mpls_label_t label = {0}; |
d62a17ae | 108 | afi_t afi; |
109 | safi_t safi; | |
110 | int addpath_encoded; | |
d7c0a89a | 111 | uint32_t addpath_id; |
d62a17ae | 112 | |
d62a17ae | 113 | /* Make prefix_rd */ |
114 | prd.family = AF_UNSPEC; | |
115 | prd.prefixlen = 64; | |
116 | ||
117 | pnt = packet->nlri; | |
118 | lim = pnt + packet->length; | |
119 | afi = packet->afi; | |
120 | safi = packet->safi; | |
121 | addpath_id = 0; | |
122 | ||
123 | addpath_encoded = | |
124 | (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ADDPATH_AF_RX_ADV) | |
125 | && CHECK_FLAG(peer->af_cap[afi][safi], | |
126 | PEER_CAP_ADDPATH_AF_TX_RCV)); | |
718e3744 | 127 | |
50905aa2 | 128 | #define VPN_PREFIXLEN_MIN_BYTES (3 + 8) /* label + RD */ |
d62a17ae | 129 | for (; pnt < lim; pnt += psize) { |
130 | /* Clear prefix structure. */ | |
131 | memset(&p, 0, sizeof(struct prefix)); | |
132 | ||
133 | if (addpath_encoded) { | |
134 | ||
135 | /* When packet overflow occurs return immediately. */ | |
136 | if (pnt + BGP_ADDPATH_ID_LEN > lim) | |
137 | return -1; | |
138 | ||
139 | addpath_id = ntohl(*((uint32_t *)pnt)); | |
140 | pnt += BGP_ADDPATH_ID_LEN; | |
141 | } | |
142 | ||
143 | /* Fetch prefix length. */ | |
144 | prefixlen = *pnt++; | |
145 | p.family = afi2family(packet->afi); | |
146 | psize = PSIZE(prefixlen); | |
147 | ||
148 | if (prefixlen < VPN_PREFIXLEN_MIN_BYTES * 8) { | |
149 | zlog_err( | |
150 | "%s [Error] Update packet error / VPN (prefix length %d less than VPN min length)", | |
151 | peer->host, prefixlen); | |
152 | return -1; | |
153 | } | |
154 | ||
155 | /* sanity check against packet data */ | |
156 | if ((pnt + psize) > lim) { | |
157 | zlog_err( | |
158 | "%s [Error] Update packet error / VPN (prefix length %d exceeds packet size %u)", | |
159 | peer->host, prefixlen, (uint)(lim - pnt)); | |
160 | return -1; | |
161 | } | |
162 | ||
163 | /* sanity check against storage for the IP address portion */ | |
164 | if ((psize - VPN_PREFIXLEN_MIN_BYTES) > (ssize_t)sizeof(p.u)) { | |
165 | zlog_err( | |
166 | "%s [Error] Update packet error / VPN (psize %d exceeds storage size %zu)", | |
167 | peer->host, | |
168 | prefixlen - VPN_PREFIXLEN_MIN_BYTES * 8, | |
169 | sizeof(p.u)); | |
170 | return -1; | |
171 | } | |
172 | ||
173 | /* Sanity check against max bitlen of the address family */ | |
174 | if ((psize - VPN_PREFIXLEN_MIN_BYTES) > prefix_blen(&p)) { | |
175 | zlog_err( | |
176 | "%s [Error] Update packet error / VPN (psize %d exceeds family (%u) max byte len %u)", | |
177 | peer->host, | |
178 | prefixlen - VPN_PREFIXLEN_MIN_BYTES * 8, | |
179 | p.family, prefix_blen(&p)); | |
180 | return -1; | |
181 | } | |
182 | ||
183 | /* Copy label to prefix. */ | |
184 | memcpy(&label, pnt, BGP_LABEL_BYTES); | |
185 | bgp_set_valid_label(&label); | |
186 | ||
187 | /* Copy routing distinguisher to rd. */ | |
188 | memcpy(&prd.val, pnt + BGP_LABEL_BYTES, 8); | |
189 | ||
190 | /* Decode RD type. */ | |
191 | type = decode_rd_type(pnt + BGP_LABEL_BYTES); | |
192 | ||
193 | switch (type) { | |
194 | case RD_TYPE_AS: | |
195 | decode_rd_as(pnt + 5, &rd_as); | |
196 | break; | |
197 | ||
198 | case RD_TYPE_AS4: | |
199 | decode_rd_as4(pnt + 5, &rd_as); | |
200 | break; | |
201 | ||
202 | case RD_TYPE_IP: | |
203 | decode_rd_ip(pnt + 5, &rd_ip); | |
204 | break; | |
fe770c88 | 205 | |
65efcfce | 206 | #if ENABLE_BGP_VNC |
d62a17ae | 207 | case RD_TYPE_VNC_ETH: |
208 | break; | |
65efcfce LB |
209 | #endif |
210 | ||
d62a17ae | 211 | default: |
212 | zlog_err("Unknown RD type %d", type); | |
213 | break; /* just report */ | |
214 | } | |
215 | ||
216 | p.prefixlen = | |
217 | prefixlen | |
218 | - VPN_PREFIXLEN_MIN_BYTES * 8; /* exclude label & RD */ | |
219 | memcpy(&p.u.prefix, pnt + VPN_PREFIXLEN_MIN_BYTES, | |
220 | psize - VPN_PREFIXLEN_MIN_BYTES); | |
221 | ||
222 | if (attr) { | |
223 | bgp_update(peer, &p, addpath_id, attr, packet->afi, | |
224 | SAFI_MPLS_VPN, ZEBRA_ROUTE_BGP, | |
b57ba6d2 | 225 | BGP_ROUTE_NORMAL, &prd, &label, 1, 0, NULL); |
d62a17ae | 226 | } else { |
227 | bgp_withdraw(peer, &p, addpath_id, attr, packet->afi, | |
228 | SAFI_MPLS_VPN, ZEBRA_ROUTE_BGP, | |
b57ba6d2 | 229 | BGP_ROUTE_NORMAL, &prd, &label, 1, NULL); |
d62a17ae | 230 | } |
231 | } | |
232 | /* Packet length consistency check. */ | |
233 | if (pnt != lim) { | |
234 | zlog_err( | |
235 | "%s [Error] Update packet error / VPN (%zu data remaining after parsing)", | |
236 | peer->host, lim - pnt); | |
237 | return -1; | |
238 | } | |
239 | ||
240 | return 0; | |
50905aa2 | 241 | #undef VPN_PREFIXLEN_MIN_BYTES |
718e3744 | 242 | } |
243 | ||
ddb5b488 PZ |
244 | /* |
245 | * This function informs zebra of the label this vrf sets on routes | |
246 | * leaked to VPN. Zebra should install this label in the kernel with | |
247 | * an action of "pop label and then use this vrf's IP FIB to route the PDU." | |
248 | * | |
249 | * Sending this vrf-label association is qualified by a) whether vrf->vpn | |
250 | * exporting is active ("export vpn" is enabled, vpn-policy RD and RT list | |
251 | * are set) and b) whether vpn-policy label is set. | |
252 | * | |
253 | * If any of these conditions do not hold, then we send MPLS_LABEL_NONE | |
254 | * for this vrf, which zebra interprets to mean "delete this vrf-label | |
255 | * association." | |
256 | */ | |
257 | void vpn_leak_zebra_vrf_label_update(struct bgp *bgp, afi_t afi) | |
258 | { | |
259 | mpls_label_t label = MPLS_LABEL_NONE; | |
ddb5b488 PZ |
260 | int debug = BGP_DEBUG(vpn, VPN_LEAK_LABEL); |
261 | ||
ddb5b488 PZ |
262 | if (bgp->vrf_id == VRF_UNKNOWN) { |
263 | if (debug) { | |
264 | zlog_debug( | |
265 | "%s: vrf %s: afi %s: vrf_id not set, " | |
266 | "can't set zebra vrf label", | |
960035b2 | 267 | __func__, bgp->name_pretty, afi2str(afi)); |
ddb5b488 PZ |
268 | } |
269 | return; | |
270 | } | |
271 | ||
272 | if (vpn_leak_to_vpn_active(bgp, afi, NULL)) { | |
273 | label = bgp->vpn_policy[afi].tovpn_label; | |
274 | } | |
275 | ||
276 | if (debug) { | |
277 | zlog_debug("%s: vrf %s: afi %s: setting label %d for vrf id %d", | |
960035b2 PZ |
278 | __func__, bgp->name_pretty, afi2str(afi), label, |
279 | bgp->vrf_id); | |
ddb5b488 PZ |
280 | } |
281 | ||
282 | zclient_send_vrf_label(zclient, bgp->vrf_id, afi, label, ZEBRA_LSP_BGP); | |
283 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = label; | |
284 | } | |
285 | ||
286 | /* | |
287 | * If zebra tells us vrf has become unconfigured, tell zebra not to | |
288 | * use this label to forward to the vrf anymore | |
289 | */ | |
290 | void vpn_leak_zebra_vrf_label_withdraw(struct bgp *bgp, afi_t afi) | |
291 | { | |
292 | mpls_label_t label = MPLS_LABEL_NONE; | |
293 | int debug = BGP_DEBUG(vpn, VPN_LEAK_LABEL); | |
294 | ||
295 | if (bgp->vrf_id == VRF_UNKNOWN) { | |
296 | if (debug) { | |
297 | zlog_debug( | |
298 | "%s: vrf_id not set, can't delete zebra vrf label", | |
299 | __func__); | |
300 | } | |
301 | return; | |
302 | } | |
303 | ||
304 | if (debug) { | |
305 | zlog_debug("%s: deleting label for vrf %s (id=%d)", __func__, | |
960035b2 | 306 | bgp->name_pretty, bgp->vrf_id); |
ddb5b488 PZ |
307 | } |
308 | ||
309 | zclient_send_vrf_label(zclient, bgp->vrf_id, afi, label, ZEBRA_LSP_BGP); | |
310 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = label; | |
311 | } | |
312 | ||
313 | static int ecom_intersect(struct ecommunity *e1, struct ecommunity *e2) | |
314 | { | |
315 | int i; | |
316 | int j; | |
317 | ||
318 | if (!e1 || !e2) | |
319 | return 0; | |
320 | ||
321 | for (i = 0; i < e1->size; ++i) { | |
322 | for (j = 0; j < e2->size; ++j) { | |
323 | if (!memcmp(e1->val + (i * ECOMMUNITY_SIZE), | |
324 | e2->val + (j * ECOMMUNITY_SIZE), | |
325 | ECOMMUNITY_SIZE)) { | |
326 | ||
327 | return 1; | |
328 | } | |
329 | } | |
330 | } | |
331 | return 0; | |
332 | } | |
333 | ||
334 | /* | |
335 | * returns pointer to new bgp_info upon success | |
336 | */ | |
337 | static struct bgp_info * | |
960035b2 PZ |
338 | leak_update( |
339 | struct bgp *bgp, /* destination bgp instance */ | |
340 | struct bgp_node *bn, | |
341 | struct attr *new_attr, /* already interned */ | |
342 | afi_t afi, | |
343 | safi_t safi, | |
344 | struct bgp_info *source_bi, | |
345 | mpls_label_t *label, | |
346 | int num_labels, | |
347 | void *parent, | |
348 | struct bgp *bgp_orig, | |
349 | struct prefix *nexthop_orig, | |
350 | int nexthop_self_flag, | |
351 | int debug) | |
ddb5b488 PZ |
352 | { |
353 | struct prefix *p = &bn->p; | |
354 | struct bgp_info *bi; | |
355 | struct bgp_info *new; | |
356 | char buf_prefix[PREFIX_STRLEN]; | |
ddb5b488 PZ |
357 | |
358 | if (debug) { | |
359 | prefix2str(&bn->p, buf_prefix, sizeof(buf_prefix)); | |
960035b2 PZ |
360 | zlog_debug("%s: entry: leak-to=%s, p=%s, type=%d, sub_type=%d", |
361 | __func__, bgp->name_pretty, buf_prefix, | |
362 | source_bi->type, source_bi->sub_type); | |
ddb5b488 PZ |
363 | } |
364 | ||
365 | /* | |
366 | * match parent | |
367 | */ | |
368 | for (bi = bn->info; bi; bi = bi->next) { | |
369 | if (bi->extra && bi->extra->parent == parent) | |
370 | break; | |
371 | } | |
372 | ||
373 | if (bi) { | |
374 | if (attrhash_cmp(bi->attr, new_attr) | |
375 | && !CHECK_FLAG(bi->flags, BGP_INFO_REMOVED)) { | |
376 | ||
377 | bgp_attr_unintern(&new_attr); | |
378 | if (debug) | |
379 | zlog_debug( | |
380 | "%s: ->%s: %s: Found route, no change", | |
960035b2 | 381 | __func__, bgp->name_pretty, |
ddb5b488 PZ |
382 | buf_prefix); |
383 | return NULL; | |
384 | } | |
385 | ||
386 | /* attr is changed */ | |
387 | bgp_info_set_flag(bn, bi, BGP_INFO_ATTR_CHANGED); | |
388 | ||
389 | /* Rewrite BGP route information. */ | |
390 | if (CHECK_FLAG(bi->flags, BGP_INFO_REMOVED)) | |
391 | bgp_info_restore(bn, bi); | |
392 | else | |
393 | bgp_aggregate_decrement(bgp, p, bi, afi, safi); | |
394 | bgp_attr_unintern(&bi->attr); | |
395 | bi->attr = new_attr; | |
396 | bi->uptime = bgp_clock(); | |
397 | ||
960035b2 PZ |
398 | if (nexthop_self_flag) |
399 | bgp_info_set_flag(bn, bi, BGP_INFO_ANNC_NH_SELF); | |
400 | ||
401 | struct bgp *bgp_nexthop = bgp; | |
402 | int nh_valid; | |
403 | ||
404 | if (bi->extra && bi->extra->bgp_orig) | |
405 | bgp_nexthop = bi->extra->bgp_orig; | |
406 | ||
407 | /* No nexthop tracking for redistributed routes */ | |
408 | if (source_bi->sub_type == BGP_ROUTE_REDISTRIBUTE) | |
409 | nh_valid = 1; | |
410 | else | |
411 | /* | |
412 | * TBD do we need to do anything about the | |
413 | * 'connected' parameter? | |
414 | */ | |
415 | nh_valid = bgp_find_or_add_nexthop( | |
416 | bgp, bgp_nexthop, | |
417 | afi, bi, NULL, 0); | |
418 | ||
419 | if (debug) | |
420 | zlog_debug("%s: nexthop is %svalid (in vrf %s)", | |
421 | __func__, (nh_valid ? "" : "not "), | |
422 | bgp_nexthop->name_pretty); | |
423 | ||
424 | if (nh_valid) | |
425 | bgp_info_set_flag(bn, bi, BGP_INFO_VALID); | |
426 | ||
ddb5b488 PZ |
427 | /* Process change. */ |
428 | bgp_aggregate_increment(bgp, p, bi, afi, safi); | |
429 | bgp_process(bgp, bn, afi, safi); | |
430 | bgp_unlock_node(bn); | |
431 | ||
432 | if (debug) | |
433 | zlog_debug("%s: ->%s: %s Found route, changed attr", | |
960035b2 | 434 | __func__, bgp->name_pretty, buf_prefix); |
ddb5b488 PZ |
435 | |
436 | return NULL; | |
437 | } | |
438 | ||
960035b2 PZ |
439 | new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_IMPORTED, 0, |
440 | bgp->peer_self, new_attr, bn); | |
441 | ||
442 | if (nexthop_self_flag) | |
443 | bgp_info_set_flag(bn, new, BGP_INFO_ANNC_NH_SELF); | |
ddb5b488 PZ |
444 | |
445 | bgp_info_extra_get(new); | |
446 | if (label) { | |
447 | int i; | |
448 | ||
449 | for (i = 0; i < num_labels; ++i) { | |
450 | new->extra->label[i] = label[i]; | |
451 | if (!bgp_is_valid_label(&label[i])) { | |
452 | if (debug) { | |
453 | zlog_debug( | |
454 | "%s: %s: marking label %d valid", | |
455 | __func__, buf_prefix, i); | |
456 | } | |
457 | bgp_set_valid_label(&new->extra->label[i]); | |
458 | } | |
459 | } | |
460 | new->extra->num_labels = num_labels; | |
461 | } | |
462 | new->extra->parent = parent; | |
463 | ||
464 | if (bgp_orig) | |
465 | new->extra->bgp_orig = bgp_orig; | |
466 | if (nexthop_orig) | |
467 | new->extra->nexthop_orig = *nexthop_orig; | |
468 | ||
960035b2 PZ |
469 | /* |
470 | * nexthop tracking for unicast routes | |
471 | */ | |
472 | struct bgp *bgp_nexthop = bgp; | |
473 | int nh_valid; | |
474 | ||
475 | if (new->extra && new->extra->bgp_orig) | |
476 | bgp_nexthop = new->extra->bgp_orig; | |
477 | ||
478 | /* | |
479 | * No nexthop tracking for redistributed routes because | |
480 | * their originating protocols will do the tracking and | |
481 | * withdraw those routes if the nexthops become unreachable | |
482 | */ | |
483 | if (source_bi->sub_type == BGP_ROUTE_REDISTRIBUTE) | |
484 | nh_valid = 1; | |
485 | else | |
486 | /* | |
487 | * TBD do we need to do anything about the | |
488 | * 'connected' parameter? | |
489 | */ | |
490 | nh_valid = bgp_find_or_add_nexthop(bgp, bgp_nexthop, | |
491 | afi, new, NULL, 0); | |
492 | ||
493 | if (debug) | |
494 | zlog_debug("%s: nexthop is %svalid (in vrf %s)", | |
495 | __func__, (nh_valid ? "" : "not "), | |
496 | bgp_nexthop->name_pretty); | |
497 | if (nh_valid) | |
498 | bgp_info_set_flag(bn, new, BGP_INFO_VALID); | |
499 | ||
ddb5b488 PZ |
500 | bgp_aggregate_increment(bgp, p, new, afi, safi); |
501 | bgp_info_add(bn, new); | |
502 | ||
503 | bgp_unlock_node(bn); | |
504 | bgp_process(bgp, bn, afi, safi); | |
505 | ||
506 | if (debug) | |
507 | zlog_debug("%s: ->%s: %s: Added new route", __func__, | |
960035b2 | 508 | bgp->name_pretty, buf_prefix); |
ddb5b488 PZ |
509 | |
510 | return new; | |
511 | } | |
512 | ||
513 | /* cf vnc_import_bgp_add_route_mode_nvegroup() and add_vnc_route() */ | |
514 | void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */ | |
515 | struct bgp *bgp_vrf, /* from */ | |
516 | struct bgp_info *info_vrf) /* route */ | |
517 | { | |
518 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
519 | struct prefix *p = &info_vrf->net->p; | |
520 | afi_t afi = family2afi(p->family); | |
521 | struct attr static_attr = {0}; | |
522 | struct attr *new_attr = NULL; | |
523 | safi_t safi = SAFI_MPLS_VPN; | |
524 | mpls_label_t label_val; | |
525 | mpls_label_t label; | |
526 | struct bgp_node *bn; | |
527 | const char *debugmsg; | |
960035b2 PZ |
528 | int nexthop_self_flag = 0; |
529 | ||
530 | if (debug) | |
531 | zlog_debug("%s: from vrf %s", __func__, bgp_vrf->name_pretty); | |
ddb5b488 | 532 | |
c8f57349 DS |
533 | if (debug && info_vrf->attr->ecommunity) { |
534 | char *s = ecommunity_ecom2str(info_vrf->attr->ecommunity, | |
535 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 PZ |
536 | |
537 | zlog_debug("%s: info_vrf->type=%d, EC{%s}", __func__, | |
538 | info_vrf->type, s); | |
c8f57349 | 539 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
540 | } |
541 | ||
542 | if (!bgp_vpn) | |
543 | return; | |
544 | ||
545 | if (!afi) { | |
546 | if (debug) | |
547 | zlog_debug("%s: can't get afi of prefix", __func__); | |
548 | return; | |
549 | } | |
550 | ||
551 | /* loop check */ | |
552 | if (info_vrf->extra && info_vrf->extra->bgp_orig == bgp_vpn) | |
553 | return; | |
554 | ||
555 | ||
556 | if (!vpn_leak_to_vpn_active(bgp_vrf, afi, &debugmsg)) { | |
557 | if (debug) | |
558 | zlog_debug("%s: skipping: %s", __func__, debugmsg); | |
559 | return; | |
560 | } | |
561 | ||
562 | bgp_attr_dup(&static_attr, info_vrf->attr); /* shallow copy */ | |
563 | ||
564 | /* | |
565 | * route map handling | |
566 | */ | |
567 | if (bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN]) { | |
568 | struct bgp_info info; | |
569 | route_map_result_t ret; | |
570 | ||
571 | memset(&info, 0, sizeof(info)); | |
572 | info.peer = bgp_vpn->peer_self; | |
573 | info.attr = &static_attr; | |
574 | ret = route_map_apply( | |
575 | bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN], | |
576 | p, RMAP_BGP, &info); | |
577 | if (RMAP_DENYMATCH == ret) { | |
578 | bgp_attr_flush(&static_attr); /* free any added parts */ | |
579 | if (debug) | |
580 | zlog_debug( | |
581 | "%s: vrf %s route map \"%s\" says DENY, returning", | |
960035b2 | 582 | __func__, bgp_vrf->name_pretty, |
ddb5b488 PZ |
583 | bgp_vrf->vpn_policy[afi] |
584 | .rmap[BGP_VPN_POLICY_DIR_TOVPN] | |
585 | ->name); | |
586 | return; | |
587 | } | |
588 | } | |
589 | ||
c8f57349 DS |
590 | if (debug && static_attr.ecommunity) { |
591 | char *s = ecommunity_ecom2str(static_attr.ecommunity, | |
592 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 593 | |
ddb5b488 PZ |
594 | zlog_debug("%s: post route map static_attr.ecommunity{%s}", |
595 | __func__, s); | |
c8f57349 | 596 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
597 | } |
598 | ||
599 | /* | |
600 | * Add the vpn-policy rt-list | |
601 | */ | |
602 | struct ecommunity *old_ecom; | |
603 | struct ecommunity *new_ecom; | |
604 | ||
605 | old_ecom = static_attr.ecommunity; | |
606 | if (old_ecom) { | |
607 | new_ecom = ecommunity_merge( | |
608 | ecommunity_dup(old_ecom), | |
609 | bgp_vrf->vpn_policy[afi] | |
610 | .rtlist[BGP_VPN_POLICY_DIR_TOVPN]); | |
611 | if (!old_ecom->refcnt) | |
612 | ecommunity_free(&old_ecom); | |
613 | } else { | |
614 | new_ecom = ecommunity_dup( | |
615 | bgp_vrf->vpn_policy[afi] | |
616 | .rtlist[BGP_VPN_POLICY_DIR_TOVPN]); | |
617 | } | |
618 | static_attr.ecommunity = new_ecom; | |
619 | SET_FLAG(static_attr.flag, ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)); | |
620 | ||
c8f57349 DS |
621 | if (debug && static_attr.ecommunity) { |
622 | char *s = ecommunity_ecom2str(static_attr.ecommunity, | |
623 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 624 | |
ddb5b488 PZ |
625 | zlog_debug("%s: post merge static_attr.ecommunity{%s}", |
626 | __func__, s); | |
c8f57349 | 627 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
628 | } |
629 | ||
630 | /* Nexthop */ | |
631 | /* if policy nexthop not set, use 0 */ | |
632 | if (CHECK_FLAG(bgp_vrf->vpn_policy[afi].flags, | |
633 | BGP_VPN_POLICY_TOVPN_NEXTHOP_SET)) { | |
634 | ||
635 | struct prefix *nexthop = | |
636 | &bgp_vrf->vpn_policy[afi].tovpn_nexthop; | |
637 | switch (nexthop->family) { | |
638 | case AF_INET: | |
639 | /* prevent mp_nexthop_global_in <- self in bgp_route.c | |
640 | */ | |
641 | static_attr.nexthop.s_addr = nexthop->u.prefix4.s_addr; | |
642 | ||
643 | static_attr.mp_nexthop_global_in = nexthop->u.prefix4; | |
644 | static_attr.mp_nexthop_len = 4; | |
645 | break; | |
646 | ||
647 | case AF_INET6: | |
648 | static_attr.mp_nexthop_global = nexthop->u.prefix6; | |
649 | static_attr.mp_nexthop_len = 16; | |
650 | break; | |
651 | ||
652 | default: | |
653 | assert(0); | |
654 | } | |
655 | } else { | |
960035b2 PZ |
656 | if (afi == AFI_IP) { |
657 | /* For ipv4, copy to multiprotocol nexthop field */ | |
658 | static_attr.mp_nexthop_global_in = static_attr.nexthop; | |
ddb5b488 | 659 | static_attr.mp_nexthop_len = 4; |
960035b2 PZ |
660 | /* XXX Leave static_attr.nexthop intact for NHT */ |
661 | static_attr.flag &= ~ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP); | |
ddb5b488 | 662 | } |
960035b2 | 663 | nexthop_self_flag = 1; |
ddb5b488 PZ |
664 | } |
665 | ||
666 | label_val = bgp_vrf->vpn_policy[afi].tovpn_label; | |
667 | if (label_val == MPLS_LABEL_NONE) { | |
668 | /* TBD get from label manager */ | |
669 | label = MPLS_LABEL_IMPLICIT_NULL; | |
670 | } else { | |
671 | encode_label(label_val, &label); | |
672 | } | |
673 | ||
674 | /* Set originator ID to "me" */ | |
675 | SET_FLAG(static_attr.flag, ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)); | |
676 | static_attr.originator_id = bgp_vpn->router_id; | |
677 | ||
678 | ||
679 | new_attr = bgp_attr_intern( | |
680 | &static_attr); /* hashed refcounted everything */ | |
681 | bgp_attr_flush(&static_attr); /* free locally-allocated parts */ | |
682 | ||
c3e345b1 DS |
683 | if (debug && new_attr->ecommunity) { |
684 | char *s = ecommunity_ecom2str(new_attr->ecommunity, | |
685 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 686 | |
ddb5b488 | 687 | zlog_debug("%s: new_attr->ecommunity{%s}", __func__, s); |
c3e345b1 | 688 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
689 | } |
690 | ||
691 | /* Now new_attr is an allocated interned attr */ | |
692 | ||
693 | bn = bgp_afi_node_get(bgp_vpn->rib[afi][safi], afi, safi, p, | |
694 | &(bgp_vrf->vpn_policy[afi].tovpn_rd)); | |
695 | ||
696 | struct bgp_info *new_info; | |
697 | ||
698 | new_info = leak_update(bgp_vpn, bn, new_attr, afi, safi, info_vrf, | |
960035b2 PZ |
699 | &label, 1, info_vrf, bgp_vrf, NULL, |
700 | nexthop_self_flag, debug); | |
ddb5b488 PZ |
701 | |
702 | /* | |
703 | * Routes actually installed in the vpn RIB must also be | |
704 | * offered to all vrfs (because now they originate from | |
705 | * the vpn RIB). | |
706 | * | |
707 | * Acceptance into other vrfs depends on rt-lists. | |
708 | * Originating vrf will not accept the looped back route | |
709 | * because of loop checking. | |
710 | */ | |
711 | if (new_info) | |
712 | vpn_leak_to_vrf_update(bgp_vrf, new_info); | |
713 | } | |
714 | ||
715 | void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, /* to */ | |
716 | struct bgp *bgp_vrf, /* from */ | |
717 | struct bgp_info *info_vrf) /* route */ | |
718 | { | |
719 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
720 | struct prefix *p = &info_vrf->net->p; | |
721 | afi_t afi = family2afi(p->family); | |
722 | safi_t safi = SAFI_MPLS_VPN; | |
723 | struct bgp_info *bi; | |
724 | struct bgp_node *bn; | |
725 | const char *debugmsg; | |
960035b2 PZ |
726 | char buf_prefix[PREFIX_STRLEN]; |
727 | ||
728 | if (debug) { | |
729 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); | |
730 | zlog_debug( | |
731 | "%s: entry: leak-from=%s, p=%s, type=%d, sub_type=%d", | |
732 | __func__, bgp_vrf->name_pretty, buf_prefix, | |
733 | info_vrf->type, info_vrf->sub_type); | |
734 | } | |
ddb5b488 PZ |
735 | |
736 | if (info_vrf->type != ZEBRA_ROUTE_BGP) { | |
737 | if (debug) | |
738 | zlog_debug("%s: wrong type %d", __func__, | |
739 | info_vrf->type); | |
740 | return; | |
741 | } | |
742 | if (info_vrf->sub_type != BGP_ROUTE_NORMAL | |
743 | && info_vrf->sub_type != BGP_ROUTE_STATIC) { | |
744 | ||
745 | if (debug) | |
746 | zlog_debug("%s: wrong sub_type %d", __func__, | |
747 | info_vrf->sub_type); | |
748 | return; | |
749 | } | |
750 | if (!bgp_vpn) | |
751 | return; | |
752 | ||
753 | if (!afi) { | |
754 | if (debug) | |
755 | zlog_debug("%s: can't get afi of prefix", __func__); | |
756 | return; | |
757 | } | |
758 | ||
759 | if (!vpn_leak_to_vpn_active(bgp_vrf, afi, &debugmsg)) { | |
760 | if (debug) | |
761 | zlog_debug("%s: skipping: %s", __func__, debugmsg); | |
762 | return; | |
763 | } | |
764 | ||
765 | if (debug) | |
766 | zlog_debug("%s: withdrawing (info_vrf=%p)", __func__, info_vrf); | |
767 | ||
768 | bn = bgp_afi_node_get(bgp_vpn->rib[afi][safi], afi, safi, p, | |
769 | &(bgp_vrf->vpn_policy[afi].tovpn_rd)); | |
770 | ||
771 | /* | |
772 | * vrf -> vpn | |
773 | * match original bi imported from | |
774 | */ | |
775 | for (bi = (bn ? bn->info : NULL); bi; bi = bi->next) { | |
776 | if (bi->extra && bi->extra->parent == info_vrf) { | |
777 | break; | |
778 | } | |
779 | } | |
780 | ||
781 | if (bi) { | |
782 | /* withdraw from looped vrfs as well */ | |
783 | vpn_leak_to_vrf_withdraw(bgp_vpn, bi); | |
784 | ||
785 | bgp_aggregate_decrement(bgp_vpn, p, bi, afi, safi); | |
786 | bgp_info_delete(bn, bi); | |
787 | bgp_process(bgp_vpn, bn, afi, safi); | |
788 | } | |
789 | bgp_unlock_node(bn); | |
790 | } | |
791 | ||
792 | void vpn_leak_from_vrf_withdraw_all(struct bgp *bgp_vpn, /* to */ | |
793 | struct bgp *bgp_vrf, /* from */ | |
794 | afi_t afi) | |
795 | { | |
796 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
797 | struct bgp_node *prn; | |
798 | safi_t safi = SAFI_MPLS_VPN; | |
799 | ||
800 | /* | |
ddb5b488 PZ |
801 | * Walk vpn table, delete bi with bgp_orig == bgp_vrf |
802 | */ | |
803 | for (prn = bgp_table_top(bgp_vpn->rib[afi][safi]); prn; | |
804 | prn = bgp_route_next(prn)) { | |
805 | ||
806 | struct bgp_table *table; | |
807 | struct bgp_node *bn; | |
808 | struct bgp_info *bi; | |
809 | ||
810 | /* This is the per-RD table of prefixes */ | |
811 | table = prn->info; | |
812 | ||
813 | if (!table) | |
814 | continue; | |
815 | ||
816 | for (bn = bgp_table_top(table); bn; bn = bgp_route_next(bn)) { | |
817 | ||
818 | char buf[PREFIX2STR_BUFFER]; | |
819 | ||
820 | if (debug && bn->info) { | |
821 | zlog_debug( | |
822 | "%s: looking at prefix %s", __func__, | |
823 | prefix2str(&bn->p, buf, sizeof(buf))); | |
824 | } | |
825 | ||
826 | for (bi = bn->info; bi; bi = bi->next) { | |
827 | if (debug) | |
828 | zlog_debug("%s: type %d, sub_type %d", | |
829 | __func__, bi->type, | |
830 | bi->sub_type); | |
831 | if (bi->sub_type != BGP_ROUTE_IMPORTED) | |
832 | continue; | |
833 | if (!bi->extra) | |
834 | continue; | |
835 | if ((struct bgp *)bi->extra->bgp_orig | |
836 | == bgp_vrf) { | |
837 | /* delete route */ | |
838 | if (debug) | |
839 | zlog_debug("%s: deleting it\n", | |
840 | __func__); | |
841 | bgp_aggregate_decrement(bgp_vpn, &bn->p, | |
842 | bi, afi, safi); | |
843 | bgp_info_delete(bn, bi); | |
844 | bgp_process(bgp_vpn, bn, afi, safi); | |
845 | } | |
846 | } | |
847 | } | |
848 | } | |
849 | } | |
850 | ||
851 | void vpn_leak_from_vrf_update_all(struct bgp *bgp_vpn, /* to */ | |
852 | struct bgp *bgp_vrf, /* from */ | |
853 | afi_t afi) | |
854 | { | |
855 | struct bgp_node *bn; | |
856 | struct bgp_info *bi; | |
857 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
858 | ||
859 | if (debug) | |
860 | zlog_debug("%s: entry, afi=%d, vrf=%s", __func__, afi, | |
960035b2 | 861 | bgp_vrf->name_pretty); |
ddb5b488 PZ |
862 | |
863 | for (bn = bgp_table_top(bgp_vrf->rib[afi][SAFI_UNICAST]); bn; | |
864 | bn = bgp_route_next(bn)) { | |
865 | ||
866 | if (debug) | |
867 | zlog_debug("%s: node=%p", __func__, bn); | |
868 | ||
869 | for (bi = bn->info; bi; bi = bi->next) { | |
870 | if (debug) | |
871 | zlog_debug( | |
872 | "%s: calling vpn_leak_from_vrf_update", | |
873 | __func__); | |
874 | vpn_leak_from_vrf_update(bgp_vpn, bgp_vrf, bi); | |
875 | } | |
876 | } | |
877 | } | |
878 | ||
879 | static void vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */ | |
880 | struct bgp *bgp_vpn, /* from */ | |
881 | struct bgp_info *info_vpn) /* route */ | |
882 | { | |
883 | struct prefix *p = &info_vpn->net->p; | |
884 | afi_t afi = family2afi(p->family); | |
885 | ||
ddb5b488 PZ |
886 | struct attr static_attr = {0}; |
887 | struct attr *new_attr = NULL; | |
888 | struct bgp_node *bn; | |
889 | safi_t safi = SAFI_UNICAST; | |
890 | const char *debugmsg; | |
891 | struct prefix nexthop_orig; | |
892 | mpls_label_t *pLabels = NULL; | |
893 | int num_labels = 0; | |
960035b2 | 894 | int nexthop_self_flag = 1; |
ddb5b488 PZ |
895 | |
896 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
897 | ||
b9c7bc5a | 898 | if (!vpn_leak_from_vpn_active(bgp_vrf, afi, &debugmsg)) { |
ddb5b488 PZ |
899 | if (debug) |
900 | zlog_debug("%s: skipping: %s", __func__, debugmsg); | |
901 | return; | |
902 | } | |
903 | ||
904 | /* Check for intersection of route targets */ | |
905 | if (!ecom_intersect( | |
906 | bgp_vrf->vpn_policy[afi].rtlist[BGP_VPN_POLICY_DIR_FROMVPN], | |
907 | info_vpn->attr->ecommunity)) { | |
908 | ||
909 | return; | |
910 | } | |
911 | ||
912 | if (debug) | |
960035b2 PZ |
913 | zlog_debug("%s: updating to vrf %s", __func__, |
914 | bgp_vrf->name_pretty); | |
ddb5b488 PZ |
915 | |
916 | bgp_attr_dup(&static_attr, info_vpn->attr); /* shallow copy */ | |
917 | ||
918 | /* | |
919 | * Nexthop: stash and clear | |
920 | * | |
921 | * Nexthop is valid in context of VPN core, but not in destination vrf. | |
922 | * Stash it for later label resolution by vrf ingress path and then | |
923 | * overwrite with 0, i.e., "me", for the sake of vrf advertisement. | |
924 | */ | |
925 | uint8_t nhfamily = NEXTHOP_FAMILY(info_vpn->attr->mp_nexthop_len); | |
926 | ||
927 | memset(&nexthop_orig, 0, sizeof(nexthop_orig)); | |
928 | nexthop_orig.family = nhfamily; | |
929 | ||
930 | switch (nhfamily) { | |
931 | ||
932 | case AF_INET: | |
933 | /* save */ | |
934 | nexthop_orig.u.prefix4 = info_vpn->attr->mp_nexthop_global_in; | |
935 | nexthop_orig.prefixlen = 32; | |
ddb5b488 | 936 | static_attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP); |
ddb5b488 PZ |
937 | break; |
938 | ||
939 | case AF_INET6: | |
940 | /* save */ | |
941 | nexthop_orig.u.prefix6 = info_vpn->attr->mp_nexthop_global; | |
942 | nexthop_orig.prefixlen = 128; | |
ddb5b488 PZ |
943 | break; |
944 | } | |
945 | ||
946 | ||
947 | /* | |
948 | * route map handling | |
ddb5b488 | 949 | */ |
ddb5b488 PZ |
950 | if (bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_FROMVPN]) { |
951 | struct bgp_info info; | |
952 | route_map_result_t ret; | |
953 | ||
954 | memset(&info, 0, sizeof(info)); | |
955 | info.peer = bgp_vrf->peer_self; | |
956 | info.attr = &static_attr; | |
957 | ret = route_map_apply(bgp_vrf->vpn_policy[afi] | |
958 | .rmap[BGP_VPN_POLICY_DIR_FROMVPN], | |
959 | p, RMAP_BGP, &info); | |
960 | if (RMAP_DENYMATCH == ret) { | |
961 | bgp_attr_flush(&static_attr); /* free any added parts */ | |
962 | if (debug) | |
963 | zlog_debug( | |
964 | "%s: vrf %s vpn-policy route map \"%s\" says DENY, returning", | |
960035b2 | 965 | __func__, bgp_vrf->name_pretty, |
ddb5b488 PZ |
966 | bgp_vrf->vpn_policy[afi] |
967 | .rmap[BGP_VPN_POLICY_DIR_FROMVPN] | |
968 | ->name); | |
969 | return; | |
970 | } | |
960035b2 PZ |
971 | /* |
972 | * if route-map changed nexthop, don't nexthop-self on output | |
973 | */ | |
974 | if (!CHECK_FLAG(static_attr.rmap_change_flags, | |
975 | BATTR_RMAP_NEXTHOP_UNCHANGED)) | |
976 | nexthop_self_flag = 0; | |
ddb5b488 PZ |
977 | } |
978 | ||
979 | new_attr = bgp_attr_intern(&static_attr); | |
980 | bgp_attr_flush(&static_attr); | |
981 | ||
982 | bn = bgp_afi_node_get(bgp_vrf->rib[afi][safi], afi, safi, p, NULL); | |
983 | ||
984 | /* | |
985 | * ensure labels are copied | |
986 | */ | |
987 | if (info_vpn->extra && info_vpn->extra->num_labels) { | |
988 | num_labels = info_vpn->extra->num_labels; | |
989 | if (num_labels > BGP_MAX_LABELS) | |
990 | num_labels = BGP_MAX_LABELS; | |
991 | pLabels = info_vpn->extra->label; | |
992 | } | |
993 | if (debug) { | |
994 | char buf_prefix[PREFIX_STRLEN]; | |
995 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); | |
996 | zlog_debug("%s: pfx %s: num_labels %d", __func__, buf_prefix, | |
997 | num_labels); | |
998 | } | |
999 | ||
960035b2 PZ |
1000 | leak_update(bgp_vrf, bn, new_attr, afi, safi, info_vpn, |
1001 | pLabels, num_labels, | |
1002 | info_vpn, /* parent */ | |
1003 | bgp_vpn, &nexthop_orig, nexthop_self_flag, debug); | |
ddb5b488 PZ |
1004 | } |
1005 | ||
1006 | void vpn_leak_to_vrf_update(struct bgp *bgp_vpn, /* from */ | |
1007 | struct bgp_info *info_vpn) /* route */ | |
1008 | { | |
1009 | struct listnode *mnode, *mnnode; | |
1010 | struct bgp *bgp; | |
1011 | ||
1012 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1013 | ||
1014 | if (debug) | |
1015 | zlog_debug("%s: start (info_vpn=%p)", __func__, info_vpn); | |
1016 | ||
1017 | /* Loop over VRFs */ | |
1018 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
1019 | ||
1020 | if (!info_vpn->extra | |
1021 | || info_vpn->extra->bgp_orig != bgp) { /* no loop */ | |
1022 | vpn_leak_to_vrf_update_onevrf(bgp, bgp_vpn, info_vpn); | |
1023 | } | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | void vpn_leak_to_vrf_withdraw(struct bgp *bgp_vpn, /* from */ | |
1028 | struct bgp_info *info_vpn) /* route */ | |
1029 | { | |
1b3510a0 PZ |
1030 | struct prefix *p; |
1031 | afi_t afi; | |
ddb5b488 PZ |
1032 | safi_t safi = SAFI_UNICAST; |
1033 | struct bgp *bgp; | |
1034 | struct listnode *mnode, *mnnode; | |
ddb5b488 PZ |
1035 | struct bgp_node *bn; |
1036 | struct bgp_info *bi; | |
1037 | const char *debugmsg; | |
960035b2 | 1038 | char buf_prefix[PREFIX_STRLEN]; |
ddb5b488 PZ |
1039 | |
1040 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1041 | ||
960035b2 PZ |
1042 | if (debug) { |
1043 | prefix2str(&info_vpn->net->p, buf_prefix, sizeof(buf_prefix)); | |
1044 | zlog_debug("%s: entry: p=%s, type=%d, sub_type=%d", | |
1045 | __func__, buf_prefix, | |
1046 | info_vpn->type, info_vpn->sub_type); | |
1047 | } | |
1048 | ||
ddb5b488 PZ |
1049 | if (debug) |
1050 | zlog_debug("%s: start (info_vpn=%p)", __func__, info_vpn); | |
1051 | ||
1b3510a0 | 1052 | if (!info_vpn->net) { |
56c2c080 | 1053 | #if ENABLE_BGP_VNC |
1b3510a0 PZ |
1054 | /* BGP_ROUTE_RFP routes do not have info_vpn->net set (yet) */ |
1055 | if (info_vpn->type == ZEBRA_ROUTE_BGP && | |
1056 | info_vpn->sub_type == BGP_ROUTE_RFP) { | |
1057 | ||
1058 | return; | |
1059 | } | |
56c2c080 | 1060 | #endif |
1b3510a0 PZ |
1061 | if (debug) |
1062 | zlog_debug("%s: info_vpn->net unexpectedly NULL, no prefix, bailing", | |
1063 | __func__); | |
1064 | return; | |
1065 | } | |
1066 | ||
1067 | p = &info_vpn->net->p; | |
1068 | afi = family2afi(p->family); | |
ddb5b488 PZ |
1069 | |
1070 | /* Loop over VRFs */ | |
1071 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
b9c7bc5a | 1072 | if (!vpn_leak_from_vpn_active(bgp, afi, &debugmsg)) { |
ddb5b488 PZ |
1073 | if (debug) |
1074 | zlog_debug("%s: skipping: %s", __func__, | |
1075 | debugmsg); | |
1076 | continue; | |
1077 | } | |
1078 | ||
1079 | /* Check for intersection of route targets */ | |
1080 | if (!ecom_intersect(bgp->vpn_policy[afi] | |
1081 | .rtlist[BGP_VPN_POLICY_DIR_FROMVPN], | |
1082 | info_vpn->attr->ecommunity)) { | |
1083 | ||
1084 | continue; | |
1085 | } | |
1086 | ||
1087 | if (debug) | |
1088 | zlog_debug("%s: withdrawing from vrf %s", __func__, | |
960035b2 | 1089 | bgp->name_pretty); |
ddb5b488 PZ |
1090 | |
1091 | bn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, NULL); | |
1092 | for (bi = (bn ? bn->info : NULL); bi; bi = bi->next) { | |
1093 | if (bi->extra | |
1094 | && (struct bgp_info *)bi->extra->parent | |
1095 | == info_vpn) { | |
1096 | break; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | if (bi) { | |
1101 | if (debug) | |
1102 | zlog_debug("%s: deleting bi %p", __func__, bi); | |
1103 | bgp_aggregate_decrement(bgp, p, bi, afi, safi); | |
1104 | bgp_info_delete(bn, bi); | |
1105 | bgp_process(bgp, bn, afi, safi); | |
1106 | } | |
1107 | bgp_unlock_node(bn); | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | void vpn_leak_to_vrf_withdraw_all(struct bgp *bgp_vrf, /* to */ | |
1112 | afi_t afi) | |
1113 | { | |
1114 | struct bgp_node *bn; | |
1115 | struct bgp_info *bi; | |
1116 | safi_t safi = SAFI_UNICAST; | |
1117 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1118 | struct bgp *bgp_vpn = bgp_get_default(); | |
1119 | ||
1120 | if (debug) | |
1121 | zlog_debug("%s: entry", __func__); | |
1122 | /* | |
1123 | * Walk vrf table, delete bi with bgp_orig == bgp_vpn | |
1124 | */ | |
1125 | for (bn = bgp_table_top(bgp_vrf->rib[afi][safi]); bn; | |
1126 | bn = bgp_route_next(bn)) { | |
1127 | ||
1128 | for (bi = bn->info; bi; bi = bi->next) { | |
1129 | if (bi->extra && bi->extra->bgp_orig == bgp_vpn) { | |
1130 | ||
1131 | /* delete route */ | |
1132 | bgp_aggregate_decrement(bgp_vrf, &bn->p, bi, | |
1133 | afi, safi); | |
1134 | bgp_info_delete(bn, bi); | |
1135 | bgp_process(bgp_vrf, bn, afi, safi); | |
1136 | } | |
1137 | } | |
1138 | } | |
1139 | } | |
1140 | ||
1141 | void vpn_leak_to_vrf_update_all(struct bgp *bgp_vrf, /* to */ | |
1142 | struct bgp *bgp_vpn, /* from */ | |
1143 | afi_t afi) | |
1144 | { | |
1145 | struct prefix_rd prd; | |
1146 | struct bgp_node *prn; | |
1147 | safi_t safi = SAFI_MPLS_VPN; | |
1148 | ||
1149 | /* | |
1150 | * Walk vpn table | |
1151 | */ | |
1152 | for (prn = bgp_table_top(bgp_vpn->rib[afi][safi]); prn; | |
1153 | prn = bgp_route_next(prn)) { | |
1154 | ||
1155 | struct bgp_table *table; | |
1156 | struct bgp_node *bn; | |
1157 | struct bgp_info *bi; | |
1158 | ||
1159 | memset(&prd, 0, sizeof(prd)); | |
1160 | prd.family = AF_UNSPEC; | |
1161 | prd.prefixlen = 64; | |
1162 | memcpy(prd.val, prn->p.u.val, 8); | |
1163 | ||
1164 | /* This is the per-RD table of prefixes */ | |
1165 | table = prn->info; | |
1166 | ||
1167 | if (!table) | |
1168 | continue; | |
1169 | ||
1170 | for (bn = bgp_table_top(table); bn; bn = bgp_route_next(bn)) { | |
1171 | ||
1172 | for (bi = bn->info; bi; bi = bi->next) { | |
1173 | ||
1174 | if (bi->extra && bi->extra->bgp_orig == bgp_vrf) | |
1175 | continue; | |
1176 | ||
1177 | vpn_leak_to_vrf_update_onevrf(bgp_vrf, bgp_vpn, | |
1178 | bi); | |
1179 | } | |
1180 | } | |
1181 | } | |
1182 | } | |
1183 | ||
1184 | static void vpn_policy_routemap_update(struct bgp *bgp, const char *rmap_name) | |
1185 | { | |
1186 | int debug = BGP_DEBUG(vpn, VPN_LEAK_RMAP_EVENT); | |
1187 | afi_t afi; | |
1188 | struct route_map *rmap; | |
1189 | ||
1190 | if (bgp->inst_type != BGP_INSTANCE_TYPE_DEFAULT | |
1191 | && bgp->inst_type != BGP_INSTANCE_TYPE_VRF) { | |
1192 | ||
1193 | return; | |
1194 | } | |
1195 | ||
1196 | rmap = route_map_lookup_by_name(rmap_name); /* NULL if deleted */ | |
1197 | ||
1198 | for (afi = 0; afi < AFI_MAX; ++afi) { | |
1199 | ||
1200 | if (vpn_leak_to_vpn_active(bgp, afi, NULL) | |
1201 | && bgp->vpn_policy[afi].rmap_name[BGP_VPN_POLICY_DIR_TOVPN] | |
1202 | && !strcmp(rmap_name, | |
1203 | bgp->vpn_policy[afi] | |
1204 | .rmap_name[BGP_VPN_POLICY_DIR_TOVPN])) { | |
1205 | ||
1206 | if (debug) | |
1207 | zlog_debug( | |
1208 | "%s: rmap \"%s\" matches vrf-policy tovpn for as %d afi %s", | |
1209 | __func__, rmap_name, bgp->as, | |
1210 | afi2str(afi)); | |
1211 | ||
1212 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, afi, | |
1213 | bgp_get_default(), bgp); | |
1214 | if (debug) | |
1215 | zlog_debug("%s: after vpn_leak_prechange", | |
1216 | __func__); | |
1217 | ||
1218 | if (!rmap) | |
1219 | bgp->vpn_policy[afi] | |
1220 | .rmap[BGP_VPN_POLICY_DIR_TOVPN] = NULL; | |
1221 | ||
1222 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, afi, | |
1223 | bgp_get_default(), bgp); | |
1224 | if (debug) | |
1225 | zlog_debug("%s: after vpn_leak_postchange", | |
1226 | __func__); | |
1227 | } | |
1228 | ||
b9c7bc5a PZ |
1229 | char *mapname = bgp->vpn_policy[afi] |
1230 | .rmap_name[BGP_VPN_POLICY_DIR_FROMVPN]; | |
ddb5b488 | 1231 | |
d555f3e9 | 1232 | if (vpn_leak_from_vpn_active(bgp, afi, NULL) && |
b9c7bc5a PZ |
1233 | mapname && |
1234 | !strcmp(rmap_name, mapname)) { | |
1235 | ||
1236 | if (debug) { | |
1237 | zlog_debug("%s: rmap \"%s\" matches vrf-policy fromvpn for as %d afi %s", | |
ddb5b488 PZ |
1238 | __func__, rmap_name, bgp->as, |
1239 | afi2str(afi)); | |
b9c7bc5a | 1240 | } |
ddb5b488 PZ |
1241 | |
1242 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_FROMVPN, afi, | |
1243 | bgp_get_default(), bgp); | |
1244 | ||
b9c7bc5a | 1245 | if (!rmap) { |
ddb5b488 PZ |
1246 | bgp->vpn_policy[afi] |
1247 | .rmap[BGP_VPN_POLICY_DIR_FROMVPN] = | |
1248 | NULL; | |
b9c7bc5a | 1249 | } |
ddb5b488 PZ |
1250 | |
1251 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_FROMVPN, afi, | |
1252 | bgp_get_default(), bgp); | |
1253 | } | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | void vpn_policy_routemap_event(const char *rmap_name) | |
1258 | { | |
1259 | int debug = BGP_DEBUG(vpn, VPN_LEAK_RMAP_EVENT); | |
1260 | struct listnode *mnode, *mnnode; | |
1261 | struct bgp *bgp; | |
1262 | ||
1263 | if (debug) | |
1264 | zlog_debug("%s: entry", __func__); | |
1265 | ||
1266 | if (bm->bgp == NULL) /* may be called during cleanup */ | |
1267 | return; | |
1268 | ||
1269 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
1270 | vpn_policy_routemap_update(bgp, rmap_name); | |
1271 | } | |
1272 | ||
718e3744 | 1273 | /* For testing purpose, static route of MPLS-VPN. */ |
1274 | DEFUN (vpnv4_network, | |
1275 | vpnv4_network_cmd, | |
d114b977 | 1276 | "network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
718e3744 | 1277 | "Specify a network to announce via BGP\n" |
0c7b1b01 | 1278 | "IPv4 prefix\n" |
718e3744 | 1279 | "Specify Route Distinguisher\n" |
1280 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1281 | "VPN NLRI label (tag)\n" |
1282 | "VPN NLRI label (tag)\n" | |
1283 | "Label value\n") | |
718e3744 | 1284 | { |
d62a17ae | 1285 | int idx_ipv4_prefixlen = 1; |
1286 | int idx_ext_community = 3; | |
1287 | int idx_label = 5; | |
1288 | return bgp_static_set_safi( | |
1289 | AFI_IP, SAFI_MPLS_VPN, vty, argv[idx_ipv4_prefixlen]->arg, | |
1290 | argv[idx_ext_community]->arg, argv[idx_label]->arg, NULL, 0, | |
1291 | NULL, NULL, NULL, NULL); | |
137446f9 LB |
1292 | } |
1293 | ||
1294 | DEFUN (vpnv4_network_route_map, | |
1295 | vpnv4_network_route_map_cmd, | |
d114b977 | 1296 | "network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575) route-map WORD", |
137446f9 | 1297 | "Specify a network to announce via BGP\n" |
0c7b1b01 | 1298 | "IPv4 prefix\n" |
137446f9 LB |
1299 | "Specify Route Distinguisher\n" |
1300 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1301 | "VPN NLRI label (tag)\n" |
1302 | "VPN NLRI label (tag)\n" | |
1303 | "Label value\n" | |
137446f9 LB |
1304 | "route map\n" |
1305 | "route map name\n") | |
1306 | { | |
d62a17ae | 1307 | int idx_ipv4_prefixlen = 1; |
1308 | int idx_ext_community = 3; | |
1309 | int idx_label = 5; | |
1310 | int idx_word_2 = 7; | |
1311 | return bgp_static_set_safi( | |
1312 | AFI_IP, SAFI_MPLS_VPN, vty, argv[idx_ipv4_prefixlen]->arg, | |
1313 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1314 | argv[idx_word_2]->arg, 0, NULL, NULL, NULL, NULL); | |
718e3744 | 1315 | } |
1316 | ||
1317 | /* For testing purpose, static route of MPLS-VPN. */ | |
1318 | DEFUN (no_vpnv4_network, | |
1319 | no_vpnv4_network_cmd, | |
d114b977 | 1320 | "no network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
718e3744 | 1321 | NO_STR |
1322 | "Specify a network to announce via BGP\n" | |
0c7b1b01 | 1323 | "IPv4 prefix\n" |
718e3744 | 1324 | "Specify Route Distinguisher\n" |
1325 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1326 | "VPN NLRI label (tag)\n" |
1327 | "VPN NLRI label (tag)\n" | |
1328 | "Label value\n") | |
718e3744 | 1329 | { |
d62a17ae | 1330 | int idx_ipv4_prefixlen = 2; |
1331 | int idx_ext_community = 4; | |
1332 | int idx_label = 6; | |
1333 | return bgp_static_unset_safi(AFI_IP, SAFI_MPLS_VPN, vty, | |
1334 | argv[idx_ipv4_prefixlen]->arg, | |
1335 | argv[idx_ext_community]->arg, | |
1336 | argv[idx_label]->arg, 0, NULL, NULL, NULL); | |
718e3744 | 1337 | } |
1338 | ||
c286be96 LX |
1339 | DEFUN (vpnv6_network, |
1340 | vpnv6_network_cmd, | |
d114b977 | 1341 | "network X:X::X:X/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575) [route-map WORD]", |
c286be96 LX |
1342 | "Specify a network to announce via BGP\n" |
1343 | "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n" | |
1344 | "Specify Route Distinguisher\n" | |
1345 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1346 | "VPN NLRI label (tag)\n" |
1347 | "VPN NLRI label (tag)\n" | |
1348 | "Label value\n" | |
11daee81 DS |
1349 | "route map\n" |
1350 | "route map name\n") | |
c286be96 | 1351 | { |
d62a17ae | 1352 | int idx_ipv6_prefix = 1; |
1353 | int idx_ext_community = 3; | |
1354 | int idx_label = 5; | |
1355 | int idx_word_2 = 7; | |
1356 | if (argc == 8) | |
1357 | return bgp_static_set_safi( | |
1358 | AFI_IP6, SAFI_MPLS_VPN, vty, argv[idx_ipv6_prefix]->arg, | |
1359 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1360 | argv[idx_word_2]->arg, 0, NULL, NULL, NULL, NULL); | |
1361 | else | |
1362 | return bgp_static_set_safi( | |
1363 | AFI_IP6, SAFI_MPLS_VPN, vty, argv[idx_ipv6_prefix]->arg, | |
1364 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1365 | NULL, 0, NULL, NULL, NULL, NULL); | |
c286be96 LX |
1366 | } |
1367 | ||
1368 | /* For testing purpose, static route of MPLS-VPN. */ | |
1369 | DEFUN (no_vpnv6_network, | |
1370 | no_vpnv6_network_cmd, | |
d114b977 | 1371 | "no network X:X::X:X/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
c286be96 LX |
1372 | NO_STR |
1373 | "Specify a network to announce via BGP\n" | |
1374 | "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n" | |
1375 | "Specify Route Distinguisher\n" | |
1376 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1377 | "VPN NLRI label (tag)\n" |
1378 | "VPN NLRI label (tag)\n" | |
1379 | "Label value\n") | |
c286be96 | 1380 | { |
d62a17ae | 1381 | int idx_ipv6_prefix = 2; |
1382 | int idx_ext_community = 4; | |
1383 | int idx_label = 6; | |
1384 | return bgp_static_unset_safi(AFI_IP6, SAFI_MPLS_VPN, vty, | |
1385 | argv[idx_ipv6_prefix]->arg, | |
1386 | argv[idx_ext_community]->arg, | |
1387 | argv[idx_label]->arg, 0, NULL, NULL, NULL); | |
c286be96 LX |
1388 | } |
1389 | ||
d62a17ae | 1390 | int bgp_show_mpls_vpn(struct vty *vty, afi_t afi, struct prefix_rd *prd, |
1391 | enum bgp_show_type type, void *output_arg, int tags, | |
d7c0a89a | 1392 | uint8_t use_json) |
718e3744 | 1393 | { |
d62a17ae | 1394 | struct bgp *bgp; |
1395 | struct bgp_table *table; | |
d62a17ae | 1396 | |
1397 | bgp = bgp_get_default(); | |
1398 | if (bgp == NULL) { | |
1399 | if (!use_json) | |
1400 | vty_out(vty, "No BGP process is configured\n"); | |
16307668 RW |
1401 | else |
1402 | vty_out(vty, "{}\n"); | |
d62a17ae | 1403 | return CMD_WARNING; |
1404 | } | |
1ae44dfc | 1405 | table = bgp->rib[afi][SAFI_MPLS_VPN]; |
a4d82a8a PZ |
1406 | return bgp_show_table_rd(vty, bgp, SAFI_MPLS_VPN, table, prd, type, |
1407 | output_arg, use_json); | |
718e3744 | 1408 | } |
1409 | ||
4f280b15 LB |
1410 | DEFUN (show_bgp_ip_vpn_all_rd, |
1411 | show_bgp_ip_vpn_all_rd_cmd, | |
d114b977 | 1412 | "show bgp "BGP_AFI_CMD_STR" vpn all [rd ASN:NN_OR_IP-ADDRESS:NN] [json]", |
e3e29b32 LB |
1413 | SHOW_STR |
1414 | BGP_STR | |
05e588f4 | 1415 | BGP_VPNVX_HELP_STR |
e3e29b32 | 1416 | "Display VPN NLRI specific information\n" |
af8528fa | 1417 | "Display VPN NLRI specific information\n" |
e3e29b32 LB |
1418 | "Display information for a route distinguisher\n" |
1419 | "VPN Route Distinguisher\n" | |
1420 | JSON_STR) | |
1421 | { | |
d62a17ae | 1422 | int ret; |
1423 | struct prefix_rd prd; | |
1424 | afi_t afi; | |
1425 | int idx = 0; | |
1426 | ||
1427 | if (argv_find_and_parse_afi(argv, argc, &idx, &afi)) { | |
3d7c4cd7 | 1428 | if (argv_find(argv, argc, "rd", &idx)) { |
a4d82a8a | 1429 | ret = str2prefix_rd(argv[idx + 1]->arg, &prd); |
d62a17ae | 1430 | if (!ret) { |
1431 | vty_out(vty, | |
1432 | "%% Malformed Route Distinguisher\n"); | |
1433 | return CMD_WARNING; | |
1434 | } | |
1435 | return bgp_show_mpls_vpn(vty, afi, &prd, | |
1436 | bgp_show_type_normal, NULL, 0, | |
1437 | use_json(argc, argv)); | |
1438 | } else { | |
1439 | return bgp_show_mpls_vpn(vty, afi, NULL, | |
1440 | bgp_show_type_normal, NULL, 0, | |
1441 | use_json(argc, argv)); | |
1442 | } | |
1443 | } | |
1444 | return CMD_SUCCESS; | |
718e3744 | 1445 | } |
1446 | ||
af8528fa LB |
1447 | ALIAS(show_bgp_ip_vpn_all_rd, |
1448 | show_bgp_ip_vpn_rd_cmd, | |
1449 | "show bgp "BGP_AFI_CMD_STR" vpn rd ASN:NN_OR_IP-ADDRESS:NN [json]", | |
1450 | SHOW_STR | |
1451 | BGP_STR | |
1452 | BGP_VPNVX_HELP_STR | |
1453 | "Display VPN NLRI specific information\n" | |
1454 | "Display information for a route distinguisher\n" | |
1455 | "VPN Route Distinguisher\n" | |
1456 | JSON_STR) | |
1457 | ||
1458 | #ifdef KEEP_OLD_VPN_COMMANDS | |
3f227172 PG |
1459 | DEFUN (show_ip_bgp_vpn_rd, |
1460 | show_ip_bgp_vpn_rd_cmd, | |
af8528fa | 1461 | "show ip bgp "BGP_AFI_CMD_STR" vpn rd ASN:NN_OR_IP-ADDRESS:NN", |
718e3744 | 1462 | SHOW_STR |
1463 | IP_STR | |
1464 | BGP_STR | |
4f280b15 | 1465 | BGP_AFI_HELP_STR |
3517059b | 1466 | "Address Family modifier\n" |
718e3744 | 1467 | "Display information for a route distinguisher\n" |
1468 | "VPN Route Distinguisher\n") | |
1469 | { | |
d62a17ae | 1470 | int idx_ext_community = argc - 1; |
1471 | int ret; | |
1472 | struct prefix_rd prd; | |
1473 | afi_t afi; | |
1474 | int idx = 0; | |
1475 | ||
1476 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1477 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1478 | if (!ret) { | |
1479 | vty_out(vty, "%% Malformed Route Distinguisher\n"); | |
1480 | return CMD_WARNING; | |
1481 | } | |
1482 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_normal, | |
1483 | NULL, 0, 0); | |
1484 | } | |
1485 | return CMD_SUCCESS; | |
1486 | } | |
718e3744 | 1487 | |
4f280b15 LB |
1488 | DEFUN (show_ip_bgp_vpn_all, |
1489 | show_ip_bgp_vpn_all_cmd, | |
1490 | "show [ip] bgp <vpnv4|vpnv6>", | |
1491 | SHOW_STR | |
1492 | IP_STR | |
1493 | BGP_STR | |
1494 | BGP_VPNVX_HELP_STR) | |
1495 | { | |
d62a17ae | 1496 | afi_t afi; |
1497 | int idx = 0; | |
4f280b15 | 1498 | |
d62a17ae | 1499 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) |
1500 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_normal, | |
1501 | NULL, 0, 0); | |
1502 | return CMD_SUCCESS; | |
4f280b15 LB |
1503 | } |
1504 | ||
3f227172 PG |
1505 | DEFUN (show_ip_bgp_vpn_all_tags, |
1506 | show_ip_bgp_vpn_all_tags_cmd, | |
1507 | "show [ip] bgp <vpnv4|vpnv6> all tags", | |
718e3744 | 1508 | SHOW_STR |
1509 | IP_STR | |
1510 | BGP_STR | |
3f227172 PG |
1511 | BGP_VPNVX_HELP_STR |
1512 | "Display information about all VPNv4/VPNV6 NLRIs\n" | |
718e3744 | 1513 | "Display BGP tags for prefixes\n") |
1514 | { | |
d62a17ae | 1515 | afi_t afi; |
1516 | int idx = 0; | |
3f227172 | 1517 | |
d62a17ae | 1518 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) |
1519 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_normal, | |
1520 | NULL, 1, 0); | |
1521 | return CMD_SUCCESS; | |
718e3744 | 1522 | } |
1523 | ||
3f227172 PG |
1524 | DEFUN (show_ip_bgp_vpn_rd_tags, |
1525 | show_ip_bgp_vpn_rd_tags_cmd, | |
d114b977 | 1526 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN tags", |
718e3744 | 1527 | SHOW_STR |
1528 | IP_STR | |
1529 | BGP_STR | |
3f227172 | 1530 | BGP_VPNVX_HELP_STR |
718e3744 | 1531 | "Display information for a route distinguisher\n" |
1532 | "VPN Route Distinguisher\n" | |
1533 | "Display BGP tags for prefixes\n") | |
1534 | { | |
d62a17ae | 1535 | int idx_ext_community = 5; |
1536 | int ret; | |
1537 | struct prefix_rd prd; | |
1538 | afi_t afi; | |
1539 | int idx = 0; | |
1540 | ||
1541 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1542 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1543 | if (!ret) { | |
1544 | vty_out(vty, "%% Malformed Route Distinguisher\n"); | |
1545 | return CMD_WARNING; | |
1546 | } | |
1547 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_normal, | |
1548 | NULL, 1, 0); | |
1549 | } | |
1550 | return CMD_SUCCESS; | |
718e3744 | 1551 | } |
1552 | ||
3f227172 PG |
1553 | DEFUN (show_ip_bgp_vpn_all_neighbor_routes, |
1554 | show_ip_bgp_vpn_all_neighbor_routes_cmd, | |
1555 | "show [ip] bgp <vpnv4|vpnv6> all neighbors A.B.C.D routes [json]", | |
718e3744 | 1556 | SHOW_STR |
1557 | IP_STR | |
1558 | BGP_STR | |
3f227172 PG |
1559 | BGP_VPNVX_HELP_STR |
1560 | "Display information about all VPNv4/VPNv6 NLRIs\n" | |
718e3744 | 1561 | "Detailed information on TCP and BGP neighbor connections\n" |
1562 | "Neighbor to display information about\n" | |
856ca177 | 1563 | "Display routes learned from neighbor\n" |
9973d184 | 1564 | JSON_STR) |
718e3744 | 1565 | { |
d62a17ae | 1566 | int idx_ipv4 = 6; |
1567 | union sockunion su; | |
1568 | struct peer *peer; | |
1569 | int ret; | |
d7c0a89a | 1570 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 1571 | afi_t afi; |
1572 | int idx = 0; | |
1573 | ||
1574 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1575 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
1576 | if (ret < 0) { | |
1577 | if (uj) { | |
1578 | json_object *json_no = NULL; | |
1579 | json_no = json_object_new_object(); | |
1580 | json_object_string_add(json_no, "warning", | |
1581 | "Malformed address"); | |
1582 | vty_out(vty, "%s\n", | |
1583 | json_object_to_json_string(json_no)); | |
1584 | json_object_free(json_no); | |
1585 | } else | |
1586 | vty_out(vty, "Malformed address: %s\n", | |
1587 | argv[idx_ipv4]->arg); | |
1588 | return CMD_WARNING; | |
1589 | } | |
1590 | ||
1591 | peer = peer_lookup(NULL, &su); | |
1592 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
1593 | if (uj) { | |
1594 | json_object *json_no = NULL; | |
1595 | json_no = json_object_new_object(); | |
1596 | json_object_string_add( | |
1597 | json_no, "warning", | |
1598 | "No such neighbor or address family"); | |
1599 | vty_out(vty, "%s\n", | |
1600 | json_object_to_json_string(json_no)); | |
1601 | json_object_free(json_no); | |
1602 | } else | |
1603 | vty_out(vty, | |
1604 | "%% No such neighbor or address family\n"); | |
1605 | return CMD_WARNING; | |
1606 | } | |
1607 | ||
1608 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_neighbor, | |
1609 | &su, 0, uj); | |
1610 | } | |
1611 | return CMD_SUCCESS; | |
718e3744 | 1612 | } |
1613 | ||
3f227172 PG |
1614 | DEFUN (show_ip_bgp_vpn_rd_neighbor_routes, |
1615 | show_ip_bgp_vpn_rd_neighbor_routes_cmd, | |
d114b977 | 1616 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN neighbors A.B.C.D routes [json]", |
718e3744 | 1617 | SHOW_STR |
1618 | IP_STR | |
1619 | BGP_STR | |
3f227172 | 1620 | BGP_VPNVX_HELP_STR |
718e3744 | 1621 | "Display information for a route distinguisher\n" |
1622 | "VPN Route Distinguisher\n" | |
1623 | "Detailed information on TCP and BGP neighbor connections\n" | |
1624 | "Neighbor to display information about\n" | |
856ca177 | 1625 | "Display routes learned from neighbor\n" |
9973d184 | 1626 | JSON_STR) |
718e3744 | 1627 | { |
d62a17ae | 1628 | int idx_ext_community = 5; |
1629 | int idx_ipv4 = 7; | |
1630 | int ret; | |
1631 | union sockunion su; | |
1632 | struct peer *peer; | |
1633 | struct prefix_rd prd; | |
d7c0a89a | 1634 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 1635 | afi_t afi; |
1636 | int idx = 0; | |
1637 | ||
1638 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1639 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1640 | if (!ret) { | |
1641 | if (uj) { | |
1642 | json_object *json_no = NULL; | |
1643 | json_no = json_object_new_object(); | |
1644 | json_object_string_add( | |
1645 | json_no, "warning", | |
1646 | "Malformed Route Distinguisher"); | |
1647 | vty_out(vty, "%s\n", | |
1648 | json_object_to_json_string(json_no)); | |
1649 | json_object_free(json_no); | |
1650 | } else | |
1651 | vty_out(vty, | |
1652 | "%% Malformed Route Distinguisher\n"); | |
1653 | return CMD_WARNING; | |
1654 | } | |
1655 | ||
1656 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
1657 | if (ret < 0) { | |
1658 | if (uj) { | |
1659 | json_object *json_no = NULL; | |
1660 | json_no = json_object_new_object(); | |
1661 | json_object_string_add(json_no, "warning", | |
1662 | "Malformed address"); | |
1663 | vty_out(vty, "%s\n", | |
1664 | json_object_to_json_string(json_no)); | |
1665 | json_object_free(json_no); | |
1666 | } else | |
1667 | vty_out(vty, "Malformed address: %s\n", | |
1668 | argv[idx_ext_community]->arg); | |
1669 | return CMD_WARNING; | |
1670 | } | |
1671 | ||
1672 | peer = peer_lookup(NULL, &su); | |
1673 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
1674 | if (uj) { | |
1675 | json_object *json_no = NULL; | |
1676 | json_no = json_object_new_object(); | |
1677 | json_object_string_add( | |
1678 | json_no, "warning", | |
1679 | "No such neighbor or address family"); | |
1680 | vty_out(vty, "%s\n", | |
1681 | json_object_to_json_string(json_no)); | |
1682 | json_object_free(json_no); | |
1683 | } else | |
1684 | vty_out(vty, | |
1685 | "%% No such neighbor or address family\n"); | |
1686 | return CMD_WARNING; | |
1687 | } | |
1688 | ||
1689 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_neighbor, | |
1690 | &su, 0, uj); | |
1691 | } | |
1692 | return CMD_SUCCESS; | |
718e3744 | 1693 | } |
1694 | ||
3f227172 PG |
1695 | DEFUN (show_ip_bgp_vpn_all_neighbor_advertised_routes, |
1696 | show_ip_bgp_vpn_all_neighbor_advertised_routes_cmd, | |
1697 | "show [ip] bgp <vpnv4|vpnv6> all neighbors A.B.C.D advertised-routes [json]", | |
718e3744 | 1698 | SHOW_STR |
1699 | IP_STR | |
1700 | BGP_STR | |
3f227172 PG |
1701 | BGP_VPNVX_HELP_STR |
1702 | "Display information about all VPNv4/VPNv6 NLRIs\n" | |
718e3744 | 1703 | "Detailed information on TCP and BGP neighbor connections\n" |
1704 | "Neighbor to display information about\n" | |
856ca177 | 1705 | "Display the routes advertised to a BGP neighbor\n" |
9973d184 | 1706 | JSON_STR) |
718e3744 | 1707 | { |
d62a17ae | 1708 | int idx_ipv4 = 6; |
1709 | int ret; | |
1710 | struct peer *peer; | |
1711 | union sockunion su; | |
d7c0a89a | 1712 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 1713 | afi_t afi; |
1714 | int idx = 0; | |
1715 | ||
1716 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1717 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
1718 | if (ret < 0) { | |
1719 | if (uj) { | |
1720 | json_object *json_no = NULL; | |
1721 | json_no = json_object_new_object(); | |
1722 | json_object_string_add(json_no, "warning", | |
1723 | "Malformed address"); | |
1724 | vty_out(vty, "%s\n", | |
1725 | json_object_to_json_string(json_no)); | |
1726 | json_object_free(json_no); | |
1727 | } else | |
1728 | vty_out(vty, "Malformed address: %s\n", | |
1729 | argv[idx_ipv4]->arg); | |
1730 | return CMD_WARNING; | |
1731 | } | |
1732 | peer = peer_lookup(NULL, &su); | |
1733 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
1734 | if (uj) { | |
1735 | json_object *json_no = NULL; | |
1736 | json_no = json_object_new_object(); | |
1737 | json_object_string_add( | |
1738 | json_no, "warning", | |
1739 | "No such neighbor or address family"); | |
1740 | vty_out(vty, "%s\n", | |
1741 | json_object_to_json_string(json_no)); | |
1742 | json_object_free(json_no); | |
1743 | } else | |
1744 | vty_out(vty, | |
1745 | "%% No such neighbor or address family\n"); | |
1746 | return CMD_WARNING; | |
1747 | } | |
1748 | return show_adj_route_vpn(vty, peer, NULL, AFI_IP, | |
1749 | SAFI_MPLS_VPN, uj); | |
1750 | } | |
1751 | return CMD_SUCCESS; | |
718e3744 | 1752 | } |
1753 | ||
3f227172 PG |
1754 | DEFUN (show_ip_bgp_vpn_rd_neighbor_advertised_routes, |
1755 | show_ip_bgp_vpn_rd_neighbor_advertised_routes_cmd, | |
d114b977 | 1756 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN neighbors A.B.C.D advertised-routes [json]", |
718e3744 | 1757 | SHOW_STR |
1758 | IP_STR | |
1759 | BGP_STR | |
3f227172 | 1760 | BGP_VPNVX_HELP_STR |
718e3744 | 1761 | "Display information for a route distinguisher\n" |
1762 | "VPN Route Distinguisher\n" | |
1763 | "Detailed information on TCP and BGP neighbor connections\n" | |
1764 | "Neighbor to display information about\n" | |
856ca177 | 1765 | "Display the routes advertised to a BGP neighbor\n" |
9973d184 | 1766 | JSON_STR) |
718e3744 | 1767 | { |
d62a17ae | 1768 | int idx_ext_community = 5; |
1769 | int idx_ipv4 = 7; | |
1770 | int ret; | |
1771 | struct peer *peer; | |
1772 | struct prefix_rd prd; | |
1773 | union sockunion su; | |
d7c0a89a | 1774 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 1775 | afi_t afi; |
1776 | int idx = 0; | |
1777 | ||
1778 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1779 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
1780 | if (ret < 0) { | |
1781 | if (uj) { | |
1782 | json_object *json_no = NULL; | |
1783 | json_no = json_object_new_object(); | |
1784 | json_object_string_add(json_no, "warning", | |
1785 | "Malformed address"); | |
1786 | vty_out(vty, "%s\n", | |
1787 | json_object_to_json_string(json_no)); | |
1788 | json_object_free(json_no); | |
1789 | } else | |
1790 | vty_out(vty, "Malformed address: %s\n", | |
1791 | argv[idx_ext_community]->arg); | |
1792 | return CMD_WARNING; | |
1793 | } | |
1794 | peer = peer_lookup(NULL, &su); | |
1795 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
1796 | if (uj) { | |
1797 | json_object *json_no = NULL; | |
1798 | json_no = json_object_new_object(); | |
1799 | json_object_string_add( | |
1800 | json_no, "warning", | |
1801 | "No such neighbor or address family"); | |
1802 | vty_out(vty, "%s\n", | |
1803 | json_object_to_json_string(json_no)); | |
1804 | json_object_free(json_no); | |
1805 | } else | |
1806 | vty_out(vty, | |
1807 | "%% No such neighbor or address family\n"); | |
1808 | return CMD_WARNING; | |
1809 | } | |
1810 | ||
1811 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1812 | if (!ret) { | |
1813 | if (uj) { | |
1814 | json_object *json_no = NULL; | |
1815 | json_no = json_object_new_object(); | |
1816 | json_object_string_add( | |
1817 | json_no, "warning", | |
1818 | "Malformed Route Distinguisher"); | |
1819 | vty_out(vty, "%s\n", | |
1820 | json_object_to_json_string(json_no)); | |
1821 | json_object_free(json_no); | |
1822 | } else | |
1823 | vty_out(vty, | |
1824 | "%% Malformed Route Distinguisher\n"); | |
1825 | return CMD_WARNING; | |
1826 | } | |
1827 | ||
1828 | return show_adj_route_vpn(vty, peer, &prd, AFI_IP, | |
1829 | SAFI_MPLS_VPN, uj); | |
1830 | } | |
1831 | return CMD_SUCCESS; | |
718e3744 | 1832 | } |
d6902373 | 1833 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
718e3744 | 1834 | |
d62a17ae | 1835 | void bgp_mplsvpn_init(void) |
718e3744 | 1836 | { |
d62a17ae | 1837 | install_element(BGP_VPNV4_NODE, &vpnv4_network_cmd); |
1838 | install_element(BGP_VPNV4_NODE, &vpnv4_network_route_map_cmd); | |
1839 | install_element(BGP_VPNV4_NODE, &no_vpnv4_network_cmd); | |
718e3744 | 1840 | |
d62a17ae | 1841 | install_element(BGP_VPNV6_NODE, &vpnv6_network_cmd); |
1842 | install_element(BGP_VPNV6_NODE, &no_vpnv6_network_cmd); | |
c286be96 | 1843 | |
d62a17ae | 1844 | install_element(VIEW_NODE, &show_bgp_ip_vpn_all_rd_cmd); |
af8528fa | 1845 | install_element(VIEW_NODE, &show_bgp_ip_vpn_rd_cmd); |
d6902373 | 1846 | #ifdef KEEP_OLD_VPN_COMMANDS |
af8528fa | 1847 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_cmd); |
d62a17ae | 1848 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_cmd); |
1849 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_tags_cmd); | |
1850 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_tags_cmd); | |
1851 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_neighbor_routes_cmd); | |
1852 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_neighbor_routes_cmd); | |
1853 | install_element(VIEW_NODE, | |
1854 | &show_ip_bgp_vpn_all_neighbor_advertised_routes_cmd); | |
1855 | install_element(VIEW_NODE, | |
1856 | &show_ip_bgp_vpn_rd_neighbor_advertised_routes_cmd); | |
d6902373 | 1857 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
718e3744 | 1858 | } |
301ad80a PG |
1859 | |
1860 | vrf_id_t get_first_vrf_for_redirect_with_rt(struct ecommunity *eckey) | |
1861 | { | |
1862 | struct listnode *mnode, *mnnode; | |
1863 | struct bgp *bgp; | |
1864 | ||
1865 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
1866 | struct ecommunity *ec; | |
1867 | ||
1868 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VRF) | |
1869 | continue; | |
1870 | ||
1871 | ec = bgp->vpn_policy[AFI_IP].import_redirect_rtlist; | |
1872 | ||
1873 | if (ecom_intersect(ec, eckey)) | |
1874 | return bgp->vrf_id; | |
1875 | } | |
1876 | return VRF_UNKNOWN; | |
1877 | } |