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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 | ||
e70e9f8e PZ |
313 | int vpn_leak_label_callback( |
314 | mpls_label_t label, | |
315 | void *labelid, | |
316 | bool allocated) | |
317 | { | |
318 | struct vpn_policy *vp = (struct vpn_policy *)labelid; | |
319 | int debug = BGP_DEBUG(vpn, VPN_LEAK_LABEL); | |
320 | ||
321 | if (debug) | |
322 | zlog_debug("%s: label=%u, allocated=%d", | |
323 | __func__, label, allocated); | |
324 | ||
325 | if (!allocated) { | |
326 | /* | |
327 | * previously-allocated label is now invalid | |
328 | */ | |
329 | if (CHECK_FLAG(vp->flags, BGP_VPN_POLICY_TOVPN_LABEL_AUTO) && | |
330 | (vp->tovpn_label != MPLS_LABEL_NONE)) { | |
331 | ||
332 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, | |
333 | vp->afi, bgp_get_default(), vp->bgp); | |
334 | vp->tovpn_label = MPLS_LABEL_NONE; | |
335 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, | |
336 | vp->afi, bgp_get_default(), vp->bgp); | |
337 | } | |
338 | return 0; | |
339 | } | |
340 | ||
341 | /* | |
342 | * New label allocation | |
343 | */ | |
344 | if (!CHECK_FLAG(vp->flags, BGP_VPN_POLICY_TOVPN_LABEL_AUTO)) { | |
345 | ||
346 | /* | |
347 | * not currently configured for auto label, reject allocation | |
348 | */ | |
349 | return -1; | |
350 | } | |
351 | ||
352 | if (vp->tovpn_label != MPLS_LABEL_NONE) { | |
353 | if (label == vp->tovpn_label) { | |
354 | /* already have same label, accept but do nothing */ | |
355 | return 0; | |
356 | } | |
357 | /* Shouldn't happen: different label allocation */ | |
358 | zlog_err("%s: %s had label %u but got new assignment %u", | |
359 | __func__, vp->bgp->name_pretty, vp->tovpn_label, label); | |
360 | /* use new one */ | |
361 | } | |
362 | ||
363 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, | |
364 | vp->afi, bgp_get_default(), vp->bgp); | |
365 | vp->tovpn_label = label; | |
366 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, | |
367 | vp->afi, bgp_get_default(), vp->bgp); | |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
ddb5b488 PZ |
372 | static int ecom_intersect(struct ecommunity *e1, struct ecommunity *e2) |
373 | { | |
374 | int i; | |
375 | int j; | |
376 | ||
377 | if (!e1 || !e2) | |
378 | return 0; | |
379 | ||
380 | for (i = 0; i < e1->size; ++i) { | |
381 | for (j = 0; j < e2->size; ++j) { | |
382 | if (!memcmp(e1->val + (i * ECOMMUNITY_SIZE), | |
383 | e2->val + (j * ECOMMUNITY_SIZE), | |
384 | ECOMMUNITY_SIZE)) { | |
385 | ||
386 | return 1; | |
387 | } | |
388 | } | |
389 | } | |
390 | return 0; | |
391 | } | |
392 | ||
e37fb4bf PZ |
393 | static bool labels_same(struct bgp_info *bi, mpls_label_t *label, uint32_t n) |
394 | { | |
395 | uint32_t i; | |
396 | ||
397 | if (!bi->extra) { | |
398 | if (!n) | |
399 | return true; | |
400 | else | |
401 | return false; | |
402 | } | |
403 | ||
404 | if (n != bi->extra->num_labels) | |
405 | return false; | |
406 | ||
407 | for (i = 0; i < n; ++i) { | |
408 | if (label[i] != bi->extra->label[i]) | |
409 | return false; | |
410 | } | |
411 | return true; | |
412 | } | |
413 | ||
414 | /* | |
415 | * make encoded route labels match specified encoded label set | |
416 | */ | |
417 | static void setlabels( | |
418 | struct bgp_info *bi, | |
419 | mpls_label_t *label, /* array of labels */ | |
420 | uint32_t num_labels) | |
421 | { | |
422 | if (num_labels) | |
423 | assert(label); | |
424 | assert(num_labels <= BGP_MAX_LABELS); | |
425 | ||
426 | if (!num_labels) { | |
427 | if (bi->extra) | |
428 | bi->extra->num_labels = 0; | |
429 | return; | |
430 | } | |
431 | ||
432 | struct bgp_info_extra *extra = bgp_info_extra_get(bi); | |
433 | uint32_t i; | |
434 | ||
435 | for (i = 0; i < num_labels; ++i) { | |
436 | extra->label[i] = label[i]; | |
437 | if (!bgp_is_valid_label(&label[i])) { | |
438 | bgp_set_valid_label(&extra->label[i]); | |
439 | } | |
440 | } | |
441 | extra->num_labels = num_labels; | |
442 | } | |
443 | ||
ddb5b488 PZ |
444 | /* |
445 | * returns pointer to new bgp_info upon success | |
446 | */ | |
447 | static struct bgp_info * | |
960035b2 PZ |
448 | leak_update( |
449 | struct bgp *bgp, /* destination bgp instance */ | |
450 | struct bgp_node *bn, | |
451 | struct attr *new_attr, /* already interned */ | |
452 | afi_t afi, | |
453 | safi_t safi, | |
454 | struct bgp_info *source_bi, | |
455 | mpls_label_t *label, | |
e37fb4bf | 456 | uint32_t num_labels, |
960035b2 PZ |
457 | void *parent, |
458 | struct bgp *bgp_orig, | |
459 | struct prefix *nexthop_orig, | |
460 | int nexthop_self_flag, | |
461 | int debug) | |
ddb5b488 PZ |
462 | { |
463 | struct prefix *p = &bn->p; | |
464 | struct bgp_info *bi; | |
465 | struct bgp_info *new; | |
466 | char buf_prefix[PREFIX_STRLEN]; | |
ddb5b488 PZ |
467 | |
468 | if (debug) { | |
469 | prefix2str(&bn->p, buf_prefix, sizeof(buf_prefix)); | |
960035b2 PZ |
470 | zlog_debug("%s: entry: leak-to=%s, p=%s, type=%d, sub_type=%d", |
471 | __func__, bgp->name_pretty, buf_prefix, | |
472 | source_bi->type, source_bi->sub_type); | |
ddb5b488 PZ |
473 | } |
474 | ||
475 | /* | |
476 | * match parent | |
477 | */ | |
478 | for (bi = bn->info; bi; bi = bi->next) { | |
479 | if (bi->extra && bi->extra->parent == parent) | |
480 | break; | |
481 | } | |
482 | ||
483 | if (bi) { | |
e37fb4bf PZ |
484 | bool labelssame = labels_same(bi, label, num_labels); |
485 | ||
ddb5b488 | 486 | if (attrhash_cmp(bi->attr, new_attr) |
e37fb4bf | 487 | && labelssame |
ddb5b488 PZ |
488 | && !CHECK_FLAG(bi->flags, BGP_INFO_REMOVED)) { |
489 | ||
490 | bgp_attr_unintern(&new_attr); | |
491 | if (debug) | |
492 | zlog_debug( | |
493 | "%s: ->%s: %s: Found route, no change", | |
960035b2 | 494 | __func__, bgp->name_pretty, |
ddb5b488 PZ |
495 | buf_prefix); |
496 | return NULL; | |
497 | } | |
498 | ||
499 | /* attr is changed */ | |
500 | bgp_info_set_flag(bn, bi, BGP_INFO_ATTR_CHANGED); | |
501 | ||
502 | /* Rewrite BGP route information. */ | |
503 | if (CHECK_FLAG(bi->flags, BGP_INFO_REMOVED)) | |
504 | bgp_info_restore(bn, bi); | |
505 | else | |
506 | bgp_aggregate_decrement(bgp, p, bi, afi, safi); | |
507 | bgp_attr_unintern(&bi->attr); | |
508 | bi->attr = new_attr; | |
509 | bi->uptime = bgp_clock(); | |
510 | ||
e37fb4bf PZ |
511 | /* |
512 | * rewrite labels | |
513 | */ | |
514 | if (!labelssame) | |
515 | setlabels(bi, label, num_labels); | |
516 | ||
960035b2 PZ |
517 | if (nexthop_self_flag) |
518 | bgp_info_set_flag(bn, bi, BGP_INFO_ANNC_NH_SELF); | |
519 | ||
520 | struct bgp *bgp_nexthop = bgp; | |
521 | int nh_valid; | |
522 | ||
523 | if (bi->extra && bi->extra->bgp_orig) | |
524 | bgp_nexthop = bi->extra->bgp_orig; | |
525 | ||
526 | /* No nexthop tracking for redistributed routes */ | |
527 | if (source_bi->sub_type == BGP_ROUTE_REDISTRIBUTE) | |
528 | nh_valid = 1; | |
529 | else | |
530 | /* | |
531 | * TBD do we need to do anything about the | |
532 | * 'connected' parameter? | |
533 | */ | |
534 | nh_valid = bgp_find_or_add_nexthop( | |
535 | bgp, bgp_nexthop, | |
536 | afi, bi, NULL, 0); | |
537 | ||
538 | if (debug) | |
539 | zlog_debug("%s: nexthop is %svalid (in vrf %s)", | |
540 | __func__, (nh_valid ? "" : "not "), | |
541 | bgp_nexthop->name_pretty); | |
542 | ||
543 | if (nh_valid) | |
544 | bgp_info_set_flag(bn, bi, BGP_INFO_VALID); | |
545 | ||
ddb5b488 PZ |
546 | /* Process change. */ |
547 | bgp_aggregate_increment(bgp, p, bi, afi, safi); | |
548 | bgp_process(bgp, bn, afi, safi); | |
549 | bgp_unlock_node(bn); | |
550 | ||
551 | if (debug) | |
552 | zlog_debug("%s: ->%s: %s Found route, changed attr", | |
960035b2 | 553 | __func__, bgp->name_pretty, buf_prefix); |
ddb5b488 PZ |
554 | |
555 | return NULL; | |
556 | } | |
557 | ||
960035b2 PZ |
558 | new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_IMPORTED, 0, |
559 | bgp->peer_self, new_attr, bn); | |
560 | ||
561 | if (nexthop_self_flag) | |
562 | bgp_info_set_flag(bn, new, BGP_INFO_ANNC_NH_SELF); | |
ddb5b488 | 563 | |
e37fb4bf PZ |
564 | if (num_labels) |
565 | setlabels(new, label, num_labels); | |
566 | ||
ddb5b488 | 567 | bgp_info_extra_get(new); |
ddb5b488 PZ |
568 | new->extra->parent = parent; |
569 | ||
570 | if (bgp_orig) | |
571 | new->extra->bgp_orig = bgp_orig; | |
572 | if (nexthop_orig) | |
573 | new->extra->nexthop_orig = *nexthop_orig; | |
574 | ||
960035b2 PZ |
575 | /* |
576 | * nexthop tracking for unicast routes | |
577 | */ | |
578 | struct bgp *bgp_nexthop = bgp; | |
579 | int nh_valid; | |
580 | ||
581 | if (new->extra && new->extra->bgp_orig) | |
582 | bgp_nexthop = new->extra->bgp_orig; | |
583 | ||
584 | /* | |
585 | * No nexthop tracking for redistributed routes because | |
586 | * their originating protocols will do the tracking and | |
587 | * withdraw those routes if the nexthops become unreachable | |
588 | */ | |
589 | if (source_bi->sub_type == BGP_ROUTE_REDISTRIBUTE) | |
590 | nh_valid = 1; | |
591 | else | |
592 | /* | |
593 | * TBD do we need to do anything about the | |
594 | * 'connected' parameter? | |
595 | */ | |
596 | nh_valid = bgp_find_or_add_nexthop(bgp, bgp_nexthop, | |
597 | afi, new, NULL, 0); | |
598 | ||
599 | if (debug) | |
600 | zlog_debug("%s: nexthop is %svalid (in vrf %s)", | |
601 | __func__, (nh_valid ? "" : "not "), | |
602 | bgp_nexthop->name_pretty); | |
603 | if (nh_valid) | |
604 | bgp_info_set_flag(bn, new, BGP_INFO_VALID); | |
605 | ||
ddb5b488 PZ |
606 | bgp_aggregate_increment(bgp, p, new, afi, safi); |
607 | bgp_info_add(bn, new); | |
608 | ||
609 | bgp_unlock_node(bn); | |
610 | bgp_process(bgp, bn, afi, safi); | |
611 | ||
612 | if (debug) | |
613 | zlog_debug("%s: ->%s: %s: Added new route", __func__, | |
960035b2 | 614 | bgp->name_pretty, buf_prefix); |
ddb5b488 PZ |
615 | |
616 | return new; | |
617 | } | |
618 | ||
619 | /* cf vnc_import_bgp_add_route_mode_nvegroup() and add_vnc_route() */ | |
620 | void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */ | |
621 | struct bgp *bgp_vrf, /* from */ | |
622 | struct bgp_info *info_vrf) /* route */ | |
623 | { | |
624 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
625 | struct prefix *p = &info_vrf->net->p; | |
626 | afi_t afi = family2afi(p->family); | |
627 | struct attr static_attr = {0}; | |
628 | struct attr *new_attr = NULL; | |
629 | safi_t safi = SAFI_MPLS_VPN; | |
630 | mpls_label_t label_val; | |
631 | mpls_label_t label; | |
632 | struct bgp_node *bn; | |
633 | const char *debugmsg; | |
960035b2 PZ |
634 | int nexthop_self_flag = 0; |
635 | ||
636 | if (debug) | |
637 | zlog_debug("%s: from vrf %s", __func__, bgp_vrf->name_pretty); | |
ddb5b488 | 638 | |
c8f57349 DS |
639 | if (debug && info_vrf->attr->ecommunity) { |
640 | char *s = ecommunity_ecom2str(info_vrf->attr->ecommunity, | |
641 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 642 | |
12a844a5 DS |
643 | zlog_debug("%s: %s info_vrf->type=%d, EC{%s}", __func__, |
644 | bgp_vrf->name, info_vrf->type, s); | |
c8f57349 | 645 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
646 | } |
647 | ||
648 | if (!bgp_vpn) | |
649 | return; | |
650 | ||
651 | if (!afi) { | |
652 | if (debug) | |
653 | zlog_debug("%s: can't get afi of prefix", __func__); | |
654 | return; | |
655 | } | |
656 | ||
cc5a6ddd | 657 | /* loop check - should not be an imported route. */ |
658 | if (info_vrf->extra && info_vrf->extra->bgp_orig) | |
ddb5b488 PZ |
659 | return; |
660 | ||
661 | ||
662 | if (!vpn_leak_to_vpn_active(bgp_vrf, afi, &debugmsg)) { | |
663 | if (debug) | |
12a844a5 DS |
664 | zlog_debug("%s: %s skipping: %s", __func__, |
665 | bgp_vrf->name, debugmsg); | |
ddb5b488 PZ |
666 | return; |
667 | } | |
668 | ||
669 | bgp_attr_dup(&static_attr, info_vrf->attr); /* shallow copy */ | |
670 | ||
671 | /* | |
672 | * route map handling | |
673 | */ | |
674 | if (bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN]) { | |
675 | struct bgp_info info; | |
676 | route_map_result_t ret; | |
677 | ||
678 | memset(&info, 0, sizeof(info)); | |
679 | info.peer = bgp_vpn->peer_self; | |
680 | info.attr = &static_attr; | |
681 | ret = route_map_apply( | |
682 | bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN], | |
683 | p, RMAP_BGP, &info); | |
684 | if (RMAP_DENYMATCH == ret) { | |
685 | bgp_attr_flush(&static_attr); /* free any added parts */ | |
686 | if (debug) | |
687 | zlog_debug( | |
688 | "%s: vrf %s route map \"%s\" says DENY, returning", | |
960035b2 | 689 | __func__, bgp_vrf->name_pretty, |
ddb5b488 PZ |
690 | bgp_vrf->vpn_policy[afi] |
691 | .rmap[BGP_VPN_POLICY_DIR_TOVPN] | |
692 | ->name); | |
693 | return; | |
694 | } | |
695 | } | |
696 | ||
c8f57349 DS |
697 | if (debug && static_attr.ecommunity) { |
698 | char *s = ecommunity_ecom2str(static_attr.ecommunity, | |
699 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 700 | |
ddb5b488 PZ |
701 | zlog_debug("%s: post route map static_attr.ecommunity{%s}", |
702 | __func__, s); | |
c8f57349 | 703 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
704 | } |
705 | ||
706 | /* | |
707 | * Add the vpn-policy rt-list | |
708 | */ | |
709 | struct ecommunity *old_ecom; | |
710 | struct ecommunity *new_ecom; | |
711 | ||
712 | old_ecom = static_attr.ecommunity; | |
713 | if (old_ecom) { | |
714 | new_ecom = ecommunity_merge( | |
715 | ecommunity_dup(old_ecom), | |
716 | bgp_vrf->vpn_policy[afi] | |
717 | .rtlist[BGP_VPN_POLICY_DIR_TOVPN]); | |
718 | if (!old_ecom->refcnt) | |
719 | ecommunity_free(&old_ecom); | |
720 | } else { | |
721 | new_ecom = ecommunity_dup( | |
722 | bgp_vrf->vpn_policy[afi] | |
723 | .rtlist[BGP_VPN_POLICY_DIR_TOVPN]); | |
724 | } | |
725 | static_attr.ecommunity = new_ecom; | |
726 | SET_FLAG(static_attr.flag, ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)); | |
727 | ||
c8f57349 DS |
728 | if (debug && static_attr.ecommunity) { |
729 | char *s = ecommunity_ecom2str(static_attr.ecommunity, | |
730 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 731 | |
ddb5b488 PZ |
732 | zlog_debug("%s: post merge static_attr.ecommunity{%s}", |
733 | __func__, s); | |
c8f57349 | 734 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
735 | } |
736 | ||
737 | /* Nexthop */ | |
738 | /* if policy nexthop not set, use 0 */ | |
739 | if (CHECK_FLAG(bgp_vrf->vpn_policy[afi].flags, | |
740 | BGP_VPN_POLICY_TOVPN_NEXTHOP_SET)) { | |
ddb5b488 PZ |
741 | struct prefix *nexthop = |
742 | &bgp_vrf->vpn_policy[afi].tovpn_nexthop; | |
12a844a5 | 743 | |
ddb5b488 PZ |
744 | switch (nexthop->family) { |
745 | case AF_INET: | |
746 | /* prevent mp_nexthop_global_in <- self in bgp_route.c | |
747 | */ | |
748 | static_attr.nexthop.s_addr = nexthop->u.prefix4.s_addr; | |
749 | ||
750 | static_attr.mp_nexthop_global_in = nexthop->u.prefix4; | |
751 | static_attr.mp_nexthop_len = 4; | |
752 | break; | |
753 | ||
754 | case AF_INET6: | |
755 | static_attr.mp_nexthop_global = nexthop->u.prefix6; | |
756 | static_attr.mp_nexthop_len = 16; | |
757 | break; | |
758 | ||
759 | default: | |
760 | assert(0); | |
761 | } | |
762 | } else { | |
12a844a5 DS |
763 | if (!CHECK_FLAG(bgp_vrf->af_flags[afi][SAFI_UNICAST], |
764 | BGP_CONFIG_VRF_TO_VRF_EXPORT)) { | |
765 | if (afi == AFI_IP) { | |
020a3f60 DS |
766 | /* |
767 | * For ipv4, copy to multiprotocol | |
768 | * nexthop field | |
769 | */ | |
770 | static_attr.mp_nexthop_global_in = | |
771 | static_attr.nexthop; | |
12a844a5 | 772 | static_attr.mp_nexthop_len = 4; |
020a3f60 DS |
773 | /* |
774 | * XXX Leave static_attr.nexthop | |
775 | * intact for NHT | |
776 | */ | |
777 | static_attr.flag &= | |
778 | ~ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP); | |
12a844a5 DS |
779 | } |
780 | } else { | |
77e62f2b | 781 | /* Update based on next-hop family to account for |
782 | * RFC 5549 (BGP unnumbered) scenario. Note that | |
783 | * specific action is only needed for the case of | |
784 | * IPv4 nexthops as the attr has been copied | |
785 | * otherwise. | |
786 | */ | |
787 | if (afi == AFI_IP && | |
788 | !BGP_ATTR_NEXTHOP_AFI_IP6(info_vrf->attr)) { | |
12a844a5 DS |
789 | static_attr.mp_nexthop_global_in.s_addr = |
790 | static_attr.nexthop.s_addr; | |
791 | static_attr.mp_nexthop_len = 4; | |
792 | static_attr.flag |= | |
793 | ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP); | |
12a844a5 | 794 | } |
ddb5b488 | 795 | } |
960035b2 | 796 | nexthop_self_flag = 1; |
ddb5b488 PZ |
797 | } |
798 | ||
799 | label_val = bgp_vrf->vpn_policy[afi].tovpn_label; | |
800 | if (label_val == MPLS_LABEL_NONE) { | |
291e32c3 | 801 | encode_label(MPLS_LABEL_IMPLICIT_NULL, &label); |
ddb5b488 PZ |
802 | } else { |
803 | encode_label(label_val, &label); | |
804 | } | |
805 | ||
806 | /* Set originator ID to "me" */ | |
807 | SET_FLAG(static_attr.flag, ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)); | |
808 | static_attr.originator_id = bgp_vpn->router_id; | |
809 | ||
810 | ||
811 | new_attr = bgp_attr_intern( | |
812 | &static_attr); /* hashed refcounted everything */ | |
813 | bgp_attr_flush(&static_attr); /* free locally-allocated parts */ | |
814 | ||
c3e345b1 DS |
815 | if (debug && new_attr->ecommunity) { |
816 | char *s = ecommunity_ecom2str(new_attr->ecommunity, | |
817 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 818 | |
ddb5b488 | 819 | zlog_debug("%s: new_attr->ecommunity{%s}", __func__, s); |
c3e345b1 | 820 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
821 | } |
822 | ||
823 | /* Now new_attr is an allocated interned attr */ | |
824 | ||
825 | bn = bgp_afi_node_get(bgp_vpn->rib[afi][safi], afi, safi, p, | |
826 | &(bgp_vrf->vpn_policy[afi].tovpn_rd)); | |
827 | ||
828 | struct bgp_info *new_info; | |
829 | ||
830 | new_info = leak_update(bgp_vpn, bn, new_attr, afi, safi, info_vrf, | |
960035b2 PZ |
831 | &label, 1, info_vrf, bgp_vrf, NULL, |
832 | nexthop_self_flag, debug); | |
ddb5b488 PZ |
833 | |
834 | /* | |
835 | * Routes actually installed in the vpn RIB must also be | |
836 | * offered to all vrfs (because now they originate from | |
837 | * the vpn RIB). | |
838 | * | |
839 | * Acceptance into other vrfs depends on rt-lists. | |
840 | * Originating vrf will not accept the looped back route | |
841 | * because of loop checking. | |
842 | */ | |
843 | if (new_info) | |
d793761d | 844 | vpn_leak_to_vrf_update(bgp_vpn, new_info); |
ddb5b488 PZ |
845 | } |
846 | ||
847 | void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, /* to */ | |
848 | struct bgp *bgp_vrf, /* from */ | |
849 | struct bgp_info *info_vrf) /* route */ | |
850 | { | |
851 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
852 | struct prefix *p = &info_vrf->net->p; | |
853 | afi_t afi = family2afi(p->family); | |
854 | safi_t safi = SAFI_MPLS_VPN; | |
855 | struct bgp_info *bi; | |
856 | struct bgp_node *bn; | |
857 | const char *debugmsg; | |
960035b2 PZ |
858 | char buf_prefix[PREFIX_STRLEN]; |
859 | ||
860 | if (debug) { | |
861 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); | |
862 | zlog_debug( | |
863 | "%s: entry: leak-from=%s, p=%s, type=%d, sub_type=%d", | |
864 | __func__, bgp_vrf->name_pretty, buf_prefix, | |
865 | info_vrf->type, info_vrf->sub_type); | |
866 | } | |
ddb5b488 | 867 | |
ddb5b488 | 868 | if (info_vrf->sub_type != BGP_ROUTE_NORMAL |
82e7e75d | 869 | && info_vrf->sub_type != BGP_ROUTE_STATIC |
870 | && info_vrf->sub_type != BGP_ROUTE_REDISTRIBUTE) { | |
ddb5b488 PZ |
871 | |
872 | if (debug) | |
873 | zlog_debug("%s: wrong sub_type %d", __func__, | |
874 | info_vrf->sub_type); | |
875 | return; | |
876 | } | |
877 | if (!bgp_vpn) | |
878 | return; | |
879 | ||
880 | if (!afi) { | |
881 | if (debug) | |
882 | zlog_debug("%s: can't get afi of prefix", __func__); | |
883 | return; | |
884 | } | |
885 | ||
886 | if (!vpn_leak_to_vpn_active(bgp_vrf, afi, &debugmsg)) { | |
887 | if (debug) | |
888 | zlog_debug("%s: skipping: %s", __func__, debugmsg); | |
889 | return; | |
890 | } | |
891 | ||
892 | if (debug) | |
893 | zlog_debug("%s: withdrawing (info_vrf=%p)", __func__, info_vrf); | |
894 | ||
895 | bn = bgp_afi_node_get(bgp_vpn->rib[afi][safi], afi, safi, p, | |
896 | &(bgp_vrf->vpn_policy[afi].tovpn_rd)); | |
897 | ||
898 | /* | |
899 | * vrf -> vpn | |
900 | * match original bi imported from | |
901 | */ | |
902 | for (bi = (bn ? bn->info : NULL); bi; bi = bi->next) { | |
903 | if (bi->extra && bi->extra->parent == info_vrf) { | |
904 | break; | |
905 | } | |
906 | } | |
907 | ||
908 | if (bi) { | |
909 | /* withdraw from looped vrfs as well */ | |
910 | vpn_leak_to_vrf_withdraw(bgp_vpn, bi); | |
911 | ||
912 | bgp_aggregate_decrement(bgp_vpn, p, bi, afi, safi); | |
913 | bgp_info_delete(bn, bi); | |
914 | bgp_process(bgp_vpn, bn, afi, safi); | |
915 | } | |
916 | bgp_unlock_node(bn); | |
917 | } | |
918 | ||
919 | void vpn_leak_from_vrf_withdraw_all(struct bgp *bgp_vpn, /* to */ | |
920 | struct bgp *bgp_vrf, /* from */ | |
921 | afi_t afi) | |
922 | { | |
923 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
924 | struct bgp_node *prn; | |
925 | safi_t safi = SAFI_MPLS_VPN; | |
926 | ||
927 | /* | |
ddb5b488 PZ |
928 | * Walk vpn table, delete bi with bgp_orig == bgp_vrf |
929 | */ | |
930 | for (prn = bgp_table_top(bgp_vpn->rib[afi][safi]); prn; | |
931 | prn = bgp_route_next(prn)) { | |
932 | ||
933 | struct bgp_table *table; | |
934 | struct bgp_node *bn; | |
935 | struct bgp_info *bi; | |
936 | ||
937 | /* This is the per-RD table of prefixes */ | |
938 | table = prn->info; | |
939 | ||
940 | if (!table) | |
941 | continue; | |
942 | ||
943 | for (bn = bgp_table_top(table); bn; bn = bgp_route_next(bn)) { | |
944 | ||
945 | char buf[PREFIX2STR_BUFFER]; | |
946 | ||
947 | if (debug && bn->info) { | |
948 | zlog_debug( | |
949 | "%s: looking at prefix %s", __func__, | |
950 | prefix2str(&bn->p, buf, sizeof(buf))); | |
951 | } | |
952 | ||
953 | for (bi = bn->info; bi; bi = bi->next) { | |
954 | if (debug) | |
955 | zlog_debug("%s: type %d, sub_type %d", | |
956 | __func__, bi->type, | |
957 | bi->sub_type); | |
958 | if (bi->sub_type != BGP_ROUTE_IMPORTED) | |
959 | continue; | |
960 | if (!bi->extra) | |
961 | continue; | |
962 | if ((struct bgp *)bi->extra->bgp_orig | |
963 | == bgp_vrf) { | |
964 | /* delete route */ | |
965 | if (debug) | |
966 | zlog_debug("%s: deleting it\n", | |
967 | __func__); | |
968 | bgp_aggregate_decrement(bgp_vpn, &bn->p, | |
969 | bi, afi, safi); | |
970 | bgp_info_delete(bn, bi); | |
971 | bgp_process(bgp_vpn, bn, afi, safi); | |
972 | } | |
973 | } | |
974 | } | |
975 | } | |
976 | } | |
977 | ||
978 | void vpn_leak_from_vrf_update_all(struct bgp *bgp_vpn, /* to */ | |
979 | struct bgp *bgp_vrf, /* from */ | |
980 | afi_t afi) | |
981 | { | |
982 | struct bgp_node *bn; | |
983 | struct bgp_info *bi; | |
984 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
985 | ||
986 | if (debug) | |
987 | zlog_debug("%s: entry, afi=%d, vrf=%s", __func__, afi, | |
960035b2 | 988 | bgp_vrf->name_pretty); |
ddb5b488 PZ |
989 | |
990 | for (bn = bgp_table_top(bgp_vrf->rib[afi][SAFI_UNICAST]); bn; | |
991 | bn = bgp_route_next(bn)) { | |
992 | ||
993 | if (debug) | |
994 | zlog_debug("%s: node=%p", __func__, bn); | |
995 | ||
996 | for (bi = bn->info; bi; bi = bi->next) { | |
997 | if (debug) | |
998 | zlog_debug( | |
999 | "%s: calling vpn_leak_from_vrf_update", | |
1000 | __func__); | |
1001 | vpn_leak_from_vrf_update(bgp_vpn, bgp_vrf, bi); | |
1002 | } | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | static void vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */ | |
1007 | struct bgp *bgp_vpn, /* from */ | |
1008 | struct bgp_info *info_vpn) /* route */ | |
1009 | { | |
1010 | struct prefix *p = &info_vpn->net->p; | |
1011 | afi_t afi = family2afi(p->family); | |
1012 | ||
ddb5b488 PZ |
1013 | struct attr static_attr = {0}; |
1014 | struct attr *new_attr = NULL; | |
1015 | struct bgp_node *bn; | |
1016 | safi_t safi = SAFI_UNICAST; | |
1017 | const char *debugmsg; | |
1018 | struct prefix nexthop_orig; | |
1019 | mpls_label_t *pLabels = NULL; | |
e37fb4bf | 1020 | uint32_t num_labels = 0; |
960035b2 | 1021 | int nexthop_self_flag = 1; |
513bf8d6 PZ |
1022 | struct bgp_info *bi_ultimate = NULL; |
1023 | int origin_local = 0; | |
d6632478 | 1024 | struct bgp *src_vrf; |
ddb5b488 PZ |
1025 | |
1026 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1027 | ||
b9c7bc5a | 1028 | if (!vpn_leak_from_vpn_active(bgp_vrf, afi, &debugmsg)) { |
ddb5b488 PZ |
1029 | if (debug) |
1030 | zlog_debug("%s: skipping: %s", __func__, debugmsg); | |
1031 | return; | |
1032 | } | |
1033 | ||
1034 | /* Check for intersection of route targets */ | |
1035 | if (!ecom_intersect( | |
1036 | bgp_vrf->vpn_policy[afi].rtlist[BGP_VPN_POLICY_DIR_FROMVPN], | |
1037 | info_vpn->attr->ecommunity)) { | |
1038 | ||
1039 | return; | |
1040 | } | |
1041 | ||
1042 | if (debug) | |
960035b2 PZ |
1043 | zlog_debug("%s: updating to vrf %s", __func__, |
1044 | bgp_vrf->name_pretty); | |
ddb5b488 PZ |
1045 | |
1046 | bgp_attr_dup(&static_attr, info_vpn->attr); /* shallow copy */ | |
1047 | ||
1048 | /* | |
1049 | * Nexthop: stash and clear | |
1050 | * | |
1051 | * Nexthop is valid in context of VPN core, but not in destination vrf. | |
1052 | * Stash it for later label resolution by vrf ingress path and then | |
1053 | * overwrite with 0, i.e., "me", for the sake of vrf advertisement. | |
1054 | */ | |
1055 | uint8_t nhfamily = NEXTHOP_FAMILY(info_vpn->attr->mp_nexthop_len); | |
1056 | ||
1057 | memset(&nexthop_orig, 0, sizeof(nexthop_orig)); | |
1058 | nexthop_orig.family = nhfamily; | |
1059 | ||
1060 | switch (nhfamily) { | |
ddb5b488 PZ |
1061 | case AF_INET: |
1062 | /* save */ | |
1063 | nexthop_orig.u.prefix4 = info_vpn->attr->mp_nexthop_global_in; | |
1064 | nexthop_orig.prefixlen = 32; | |
12a844a5 DS |
1065 | |
1066 | if (CHECK_FLAG(bgp_vrf->af_flags[afi][safi], | |
1067 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
1068 | static_attr.nexthop.s_addr = | |
1069 | nexthop_orig.u.prefix4.s_addr; | |
1070 | ||
1071 | static_attr.mp_nexthop_global_in = | |
1072 | info_vpn->attr->mp_nexthop_global_in; | |
1073 | static_attr.mp_nexthop_len = | |
1074 | info_vpn->attr->mp_nexthop_len; | |
1075 | } | |
ddb5b488 | 1076 | static_attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP); |
ddb5b488 | 1077 | break; |
ddb5b488 PZ |
1078 | case AF_INET6: |
1079 | /* save */ | |
1080 | nexthop_orig.u.prefix6 = info_vpn->attr->mp_nexthop_global; | |
1081 | nexthop_orig.prefixlen = 128; | |
12a844a5 DS |
1082 | |
1083 | if (CHECK_FLAG(bgp_vrf->af_flags[afi][safi], | |
1084 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
1085 | static_attr.mp_nexthop_global = nexthop_orig.u.prefix6; | |
12a844a5 | 1086 | } |
ddb5b488 PZ |
1087 | break; |
1088 | } | |
1089 | ||
ddb5b488 PZ |
1090 | /* |
1091 | * route map handling | |
ddb5b488 | 1092 | */ |
ddb5b488 PZ |
1093 | if (bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_FROMVPN]) { |
1094 | struct bgp_info info; | |
1095 | route_map_result_t ret; | |
1096 | ||
1097 | memset(&info, 0, sizeof(info)); | |
1098 | info.peer = bgp_vrf->peer_self; | |
1099 | info.attr = &static_attr; | |
1100 | ret = route_map_apply(bgp_vrf->vpn_policy[afi] | |
1101 | .rmap[BGP_VPN_POLICY_DIR_FROMVPN], | |
1102 | p, RMAP_BGP, &info); | |
1103 | if (RMAP_DENYMATCH == ret) { | |
1104 | bgp_attr_flush(&static_attr); /* free any added parts */ | |
1105 | if (debug) | |
1106 | zlog_debug( | |
1107 | "%s: vrf %s vpn-policy route map \"%s\" says DENY, returning", | |
960035b2 | 1108 | __func__, bgp_vrf->name_pretty, |
ddb5b488 PZ |
1109 | bgp_vrf->vpn_policy[afi] |
1110 | .rmap[BGP_VPN_POLICY_DIR_FROMVPN] | |
1111 | ->name); | |
1112 | return; | |
1113 | } | |
960035b2 PZ |
1114 | /* |
1115 | * if route-map changed nexthop, don't nexthop-self on output | |
1116 | */ | |
1117 | if (!CHECK_FLAG(static_attr.rmap_change_flags, | |
1118 | BATTR_RMAP_NEXTHOP_UNCHANGED)) | |
1119 | nexthop_self_flag = 0; | |
ddb5b488 PZ |
1120 | } |
1121 | ||
1122 | new_attr = bgp_attr_intern(&static_attr); | |
1123 | bgp_attr_flush(&static_attr); | |
1124 | ||
1125 | bn = bgp_afi_node_get(bgp_vrf->rib[afi][safi], afi, safi, p, NULL); | |
1126 | ||
1127 | /* | |
1128 | * ensure labels are copied | |
513bf8d6 PZ |
1129 | * |
1130 | * However, there is a special case: if the route originated in | |
1131 | * another local VRF (as opposed to arriving via VPN), then the | |
1132 | * nexthop is reached by hairpinning through this router (me) | |
1133 | * using IP forwarding only (no LSP). Therefore, the route | |
1134 | * imported to the VRF should not have labels attached. Note | |
1135 | * that nexthop tracking is also involved: eliminating the | |
1136 | * labels for these routes enables the non-labeled nexthops | |
1137 | * from the originating VRF to be considered valid for this route. | |
ddb5b488 | 1138 | */ |
12a844a5 DS |
1139 | if (!CHECK_FLAG(bgp_vrf->af_flags[afi][safi], |
1140 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
1141 | /* work back to original route */ | |
1142 | for (bi_ultimate = info_vpn; | |
1143 | bi_ultimate->extra && bi_ultimate->extra->parent; | |
1144 | bi_ultimate = bi_ultimate->extra->parent) | |
1145 | ; | |
513bf8d6 | 1146 | |
12a844a5 DS |
1147 | /* |
1148 | * if original route was unicast, | |
1149 | * then it did not arrive over vpn | |
1150 | */ | |
1151 | if (bi_ultimate->net) { | |
1152 | struct bgp_table *table; | |
513bf8d6 | 1153 | |
12a844a5 DS |
1154 | table = bgp_node_table(bi_ultimate->net); |
1155 | if (table && (table->safi == SAFI_UNICAST)) | |
1156 | origin_local = 1; | |
1157 | } | |
513bf8d6 | 1158 | |
12a844a5 DS |
1159 | /* copy labels */ |
1160 | if (!origin_local && | |
1161 | info_vpn->extra && info_vpn->extra->num_labels) { | |
1162 | num_labels = info_vpn->extra->num_labels; | |
1163 | if (num_labels > BGP_MAX_LABELS) | |
1164 | num_labels = BGP_MAX_LABELS; | |
1165 | pLabels = info_vpn->extra->label; | |
1166 | } | |
ddb5b488 | 1167 | } |
513bf8d6 | 1168 | |
ddb5b488 PZ |
1169 | if (debug) { |
1170 | char buf_prefix[PREFIX_STRLEN]; | |
1171 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); | |
1172 | zlog_debug("%s: pfx %s: num_labels %d", __func__, buf_prefix, | |
1173 | num_labels); | |
1174 | } | |
1175 | ||
44338987 | 1176 | /* |
1d4e8b0d DS |
1177 | * For VRF-2-VRF route-leaking, |
1178 | * the source will be the originating VRF. | |
44338987 | 1179 | */ |
d6632478 PZ |
1180 | if (info_vpn->extra && info_vpn->extra->bgp_orig) |
1181 | src_vrf = info_vpn->extra->bgp_orig; | |
1182 | else | |
1183 | src_vrf = bgp_vpn; | |
1184 | ||
960035b2 PZ |
1185 | leak_update(bgp_vrf, bn, new_attr, afi, safi, info_vpn, |
1186 | pLabels, num_labels, | |
1187 | info_vpn, /* parent */ | |
d6632478 | 1188 | src_vrf, &nexthop_orig, nexthop_self_flag, debug); |
ddb5b488 PZ |
1189 | } |
1190 | ||
1191 | void vpn_leak_to_vrf_update(struct bgp *bgp_vpn, /* from */ | |
1192 | struct bgp_info *info_vpn) /* route */ | |
1193 | { | |
1194 | struct listnode *mnode, *mnnode; | |
1195 | struct bgp *bgp; | |
1196 | ||
1197 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1198 | ||
1199 | if (debug) | |
1200 | zlog_debug("%s: start (info_vpn=%p)", __func__, info_vpn); | |
1201 | ||
1202 | /* Loop over VRFs */ | |
1203 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
1204 | ||
1205 | if (!info_vpn->extra | |
1206 | || info_vpn->extra->bgp_orig != bgp) { /* no loop */ | |
1207 | vpn_leak_to_vrf_update_onevrf(bgp, bgp_vpn, info_vpn); | |
1208 | } | |
1209 | } | |
1210 | } | |
1211 | ||
1212 | void vpn_leak_to_vrf_withdraw(struct bgp *bgp_vpn, /* from */ | |
1213 | struct bgp_info *info_vpn) /* route */ | |
1214 | { | |
1b3510a0 PZ |
1215 | struct prefix *p; |
1216 | afi_t afi; | |
ddb5b488 PZ |
1217 | safi_t safi = SAFI_UNICAST; |
1218 | struct bgp *bgp; | |
1219 | struct listnode *mnode, *mnnode; | |
ddb5b488 PZ |
1220 | struct bgp_node *bn; |
1221 | struct bgp_info *bi; | |
1222 | const char *debugmsg; | |
960035b2 | 1223 | char buf_prefix[PREFIX_STRLEN]; |
ddb5b488 PZ |
1224 | |
1225 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1226 | ||
960035b2 PZ |
1227 | if (debug) { |
1228 | prefix2str(&info_vpn->net->p, buf_prefix, sizeof(buf_prefix)); | |
1229 | zlog_debug("%s: entry: p=%s, type=%d, sub_type=%d", | |
1230 | __func__, buf_prefix, | |
1231 | info_vpn->type, info_vpn->sub_type); | |
1232 | } | |
1233 | ||
ddb5b488 PZ |
1234 | if (debug) |
1235 | zlog_debug("%s: start (info_vpn=%p)", __func__, info_vpn); | |
1236 | ||
1b3510a0 | 1237 | if (!info_vpn->net) { |
56c2c080 | 1238 | #if ENABLE_BGP_VNC |
1b3510a0 PZ |
1239 | /* BGP_ROUTE_RFP routes do not have info_vpn->net set (yet) */ |
1240 | if (info_vpn->type == ZEBRA_ROUTE_BGP && | |
1241 | info_vpn->sub_type == BGP_ROUTE_RFP) { | |
1242 | ||
1243 | return; | |
1244 | } | |
56c2c080 | 1245 | #endif |
1b3510a0 PZ |
1246 | if (debug) |
1247 | zlog_debug("%s: info_vpn->net unexpectedly NULL, no prefix, bailing", | |
1248 | __func__); | |
1249 | return; | |
1250 | } | |
1251 | ||
1252 | p = &info_vpn->net->p; | |
1253 | afi = family2afi(p->family); | |
ddb5b488 PZ |
1254 | |
1255 | /* Loop over VRFs */ | |
1256 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
b9c7bc5a | 1257 | if (!vpn_leak_from_vpn_active(bgp, afi, &debugmsg)) { |
ddb5b488 PZ |
1258 | if (debug) |
1259 | zlog_debug("%s: skipping: %s", __func__, | |
1260 | debugmsg); | |
1261 | continue; | |
1262 | } | |
1263 | ||
1264 | /* Check for intersection of route targets */ | |
1265 | if (!ecom_intersect(bgp->vpn_policy[afi] | |
1266 | .rtlist[BGP_VPN_POLICY_DIR_FROMVPN], | |
1267 | info_vpn->attr->ecommunity)) { | |
1268 | ||
1269 | continue; | |
1270 | } | |
1271 | ||
1272 | if (debug) | |
1273 | zlog_debug("%s: withdrawing from vrf %s", __func__, | |
960035b2 | 1274 | bgp->name_pretty); |
ddb5b488 PZ |
1275 | |
1276 | bn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, NULL); | |
1277 | for (bi = (bn ? bn->info : NULL); bi; bi = bi->next) { | |
1278 | if (bi->extra | |
1279 | && (struct bgp_info *)bi->extra->parent | |
1280 | == info_vpn) { | |
1281 | break; | |
1282 | } | |
1283 | } | |
1284 | ||
1285 | if (bi) { | |
1286 | if (debug) | |
1287 | zlog_debug("%s: deleting bi %p", __func__, bi); | |
1288 | bgp_aggregate_decrement(bgp, p, bi, afi, safi); | |
1289 | bgp_info_delete(bn, bi); | |
1290 | bgp_process(bgp, bn, afi, safi); | |
1291 | } | |
1292 | bgp_unlock_node(bn); | |
1293 | } | |
1294 | } | |
1295 | ||
1296 | void vpn_leak_to_vrf_withdraw_all(struct bgp *bgp_vrf, /* to */ | |
1297 | afi_t afi) | |
1298 | { | |
1299 | struct bgp_node *bn; | |
1300 | struct bgp_info *bi; | |
1301 | safi_t safi = SAFI_UNICAST; | |
1302 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
ddb5b488 PZ |
1303 | |
1304 | if (debug) | |
1305 | zlog_debug("%s: entry", __func__); | |
1306 | /* | |
d793761d | 1307 | * Walk vrf table, delete bi with bgp_orig in a different vrf |
ddb5b488 PZ |
1308 | */ |
1309 | for (bn = bgp_table_top(bgp_vrf->rib[afi][safi]); bn; | |
1310 | bn = bgp_route_next(bn)) { | |
1311 | ||
1312 | for (bi = bn->info; bi; bi = bi->next) { | |
d793761d | 1313 | if (bi->extra && bi->extra->bgp_orig != bgp_vrf) { |
ddb5b488 PZ |
1314 | |
1315 | /* delete route */ | |
1316 | bgp_aggregate_decrement(bgp_vrf, &bn->p, bi, | |
1317 | afi, safi); | |
1318 | bgp_info_delete(bn, bi); | |
1319 | bgp_process(bgp_vrf, bn, afi, safi); | |
1320 | } | |
1321 | } | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | void vpn_leak_to_vrf_update_all(struct bgp *bgp_vrf, /* to */ | |
1326 | struct bgp *bgp_vpn, /* from */ | |
1327 | afi_t afi) | |
1328 | { | |
1329 | struct prefix_rd prd; | |
1330 | struct bgp_node *prn; | |
1331 | safi_t safi = SAFI_MPLS_VPN; | |
1332 | ||
1333 | /* | |
1334 | * Walk vpn table | |
1335 | */ | |
1336 | for (prn = bgp_table_top(bgp_vpn->rib[afi][safi]); prn; | |
1337 | prn = bgp_route_next(prn)) { | |
1338 | ||
1339 | struct bgp_table *table; | |
1340 | struct bgp_node *bn; | |
1341 | struct bgp_info *bi; | |
1342 | ||
1343 | memset(&prd, 0, sizeof(prd)); | |
1344 | prd.family = AF_UNSPEC; | |
1345 | prd.prefixlen = 64; | |
1346 | memcpy(prd.val, prn->p.u.val, 8); | |
1347 | ||
1348 | /* This is the per-RD table of prefixes */ | |
1349 | table = prn->info; | |
1350 | ||
1351 | if (!table) | |
1352 | continue; | |
1353 | ||
1354 | for (bn = bgp_table_top(table); bn; bn = bgp_route_next(bn)) { | |
1355 | ||
1356 | for (bi = bn->info; bi; bi = bi->next) { | |
1357 | ||
1358 | if (bi->extra && bi->extra->bgp_orig == bgp_vrf) | |
1359 | continue; | |
1360 | ||
1361 | vpn_leak_to_vrf_update_onevrf(bgp_vrf, bgp_vpn, | |
1362 | bi); | |
1363 | } | |
1364 | } | |
1365 | } | |
1366 | } | |
1367 | ||
d92a55df PZ |
1368 | /* |
1369 | * This function is called for definition/deletion/change to a route-map | |
1370 | */ | |
ddb5b488 PZ |
1371 | static void vpn_policy_routemap_update(struct bgp *bgp, const char *rmap_name) |
1372 | { | |
1373 | int debug = BGP_DEBUG(vpn, VPN_LEAK_RMAP_EVENT); | |
1374 | afi_t afi; | |
1375 | struct route_map *rmap; | |
1376 | ||
1377 | if (bgp->inst_type != BGP_INSTANCE_TYPE_DEFAULT | |
1378 | && bgp->inst_type != BGP_INSTANCE_TYPE_VRF) { | |
1379 | ||
1380 | return; | |
1381 | } | |
1382 | ||
1383 | rmap = route_map_lookup_by_name(rmap_name); /* NULL if deleted */ | |
1384 | ||
1385 | for (afi = 0; afi < AFI_MAX; ++afi) { | |
1386 | ||
d92a55df PZ |
1387 | if (bgp->vpn_policy[afi].rmap_name[BGP_VPN_POLICY_DIR_TOVPN] |
1388 | && !strcmp(rmap_name, | |
ddb5b488 PZ |
1389 | bgp->vpn_policy[afi] |
1390 | .rmap_name[BGP_VPN_POLICY_DIR_TOVPN])) { | |
1391 | ||
1392 | if (debug) | |
1393 | zlog_debug( | |
1394 | "%s: rmap \"%s\" matches vrf-policy tovpn for as %d afi %s", | |
1395 | __func__, rmap_name, bgp->as, | |
1396 | afi2str(afi)); | |
1397 | ||
1398 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, afi, | |
1399 | bgp_get_default(), bgp); | |
1400 | if (debug) | |
1401 | zlog_debug("%s: after vpn_leak_prechange", | |
1402 | __func__); | |
1403 | ||
d92a55df PZ |
1404 | /* in case of definition/deletion */ |
1405 | bgp->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN] = | |
1406 | rmap; | |
ddb5b488 PZ |
1407 | |
1408 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, afi, | |
1409 | bgp_get_default(), bgp); | |
d92a55df | 1410 | |
ddb5b488 PZ |
1411 | if (debug) |
1412 | zlog_debug("%s: after vpn_leak_postchange", | |
1413 | __func__); | |
1414 | } | |
1415 | ||
d92a55df PZ |
1416 | if (bgp->vpn_policy[afi].rmap_name[BGP_VPN_POLICY_DIR_FROMVPN] |
1417 | && !strcmp(rmap_name, | |
1418 | bgp->vpn_policy[afi] | |
1419 | .rmap_name[BGP_VPN_POLICY_DIR_FROMVPN])) { | |
b9c7bc5a PZ |
1420 | |
1421 | if (debug) { | |
1422 | zlog_debug("%s: rmap \"%s\" matches vrf-policy fromvpn for as %d afi %s", | |
ddb5b488 PZ |
1423 | __func__, rmap_name, bgp->as, |
1424 | afi2str(afi)); | |
b9c7bc5a | 1425 | } |
ddb5b488 PZ |
1426 | |
1427 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_FROMVPN, afi, | |
1428 | bgp_get_default(), bgp); | |
1429 | ||
d92a55df PZ |
1430 | /* in case of definition/deletion */ |
1431 | bgp->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_FROMVPN] = | |
1432 | rmap; | |
ddb5b488 PZ |
1433 | |
1434 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_FROMVPN, afi, | |
1435 | bgp_get_default(), bgp); | |
1436 | } | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | void vpn_policy_routemap_event(const char *rmap_name) | |
1441 | { | |
1442 | int debug = BGP_DEBUG(vpn, VPN_LEAK_RMAP_EVENT); | |
1443 | struct listnode *mnode, *mnnode; | |
1444 | struct bgp *bgp; | |
1445 | ||
1446 | if (debug) | |
1447 | zlog_debug("%s: entry", __func__); | |
1448 | ||
1449 | if (bm->bgp == NULL) /* may be called during cleanup */ | |
1450 | return; | |
1451 | ||
1452 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
1453 | vpn_policy_routemap_update(bgp, rmap_name); | |
1454 | } | |
1455 | ||
1d4e8b0d | 1456 | void vrf_import_from_vrf(struct bgp *to_bgp, struct bgp *from_bgp, |
44338987 | 1457 | afi_t afi, safi_t safi) |
1458 | { | |
1459 | const char *export_name; | |
1460 | vpn_policy_direction_t idir, edir; | |
1461 | char *vname; | |
1462 | char buf[1000]; | |
1463 | struct ecommunity *ecom; | |
1464 | bool first_export = false; | |
1465 | ||
a8dadcf6 | 1466 | export_name = to_bgp->name ? to_bgp->name : BGP_DEFAULT_NAME; |
44338987 | 1467 | idir = BGP_VPN_POLICY_DIR_FROMVPN; |
1468 | edir = BGP_VPN_POLICY_DIR_TOVPN; | |
1469 | ||
1d4e8b0d DS |
1470 | /* |
1471 | * Cross-ref both VRFs. Also, note if this is the first time | |
44338987 | 1472 | * any VRF is importing from "import_vrf". |
1473 | */ | |
a8dadcf6 DS |
1474 | vname = (from_bgp->name ? XSTRDUP(MTYPE_TMP, from_bgp->name) |
1475 | : XSTRDUP(MTYPE_TMP, BGP_DEFAULT_NAME)); | |
1476 | ||
1d4e8b0d | 1477 | listnode_add(to_bgp->vpn_policy[afi].import_vrf, vname); |
44338987 | 1478 | |
1d4e8b0d | 1479 | if (!listcount(from_bgp->vpn_policy[afi].export_vrf)) |
44338987 | 1480 | first_export = true; |
1481 | vname = XSTRDUP(MTYPE_TMP, export_name); | |
1d4e8b0d | 1482 | listnode_add(from_bgp->vpn_policy[afi].export_vrf, vname); |
44338987 | 1483 | |
1484 | /* Update import RT for current VRF using export RT of the VRF we're | |
1485 | * importing from. First though, make sure "import_vrf" has that | |
1486 | * set. | |
1487 | */ | |
1488 | if (first_export) { | |
1d4e8b0d DS |
1489 | form_auto_rd(from_bgp->router_id, from_bgp->vrf_rd_id, |
1490 | &from_bgp->vrf_prd_auto); | |
1491 | from_bgp->vpn_policy[afi].tovpn_rd = from_bgp->vrf_prd_auto; | |
1492 | SET_FLAG(from_bgp->vpn_policy[afi].flags, | |
44338987 | 1493 | BGP_VPN_POLICY_TOVPN_RD_SET); |
1d4e8b0d | 1494 | prefix_rd2str(&from_bgp->vpn_policy[afi].tovpn_rd, |
44338987 | 1495 | buf, sizeof(buf)); |
1d4e8b0d | 1496 | from_bgp->vpn_policy[afi].rtlist[edir] = |
44338987 | 1497 | ecommunity_str2com(buf, ECOMMUNITY_ROUTE_TARGET, 0); |
1d4e8b0d | 1498 | SET_FLAG(from_bgp->af_flags[afi][safi], |
44338987 | 1499 | BGP_CONFIG_VRF_TO_VRF_EXPORT); |
1500 | } | |
1d4e8b0d DS |
1501 | ecom = from_bgp->vpn_policy[afi].rtlist[edir]; |
1502 | if (to_bgp->vpn_policy[afi].rtlist[idir]) | |
1503 | to_bgp->vpn_policy[afi].rtlist[idir] = | |
1504 | ecommunity_merge(to_bgp->vpn_policy[afi] | |
44338987 | 1505 | .rtlist[idir], ecom); |
1506 | else | |
1d4e8b0d DS |
1507 | to_bgp->vpn_policy[afi].rtlist[idir] = ecommunity_dup(ecom); |
1508 | SET_FLAG(to_bgp->af_flags[afi][safi], BGP_CONFIG_VRF_TO_VRF_IMPORT); | |
44338987 | 1509 | |
1510 | /* Does "import_vrf" first need to export its routes or that | |
1511 | * is already done and we just need to import those routes | |
1512 | * from the global table? | |
1513 | */ | |
1514 | if (first_export) | |
1d4e8b0d | 1515 | vpn_leak_postchange(edir, afi, bgp_get_default(), from_bgp); |
44338987 | 1516 | else |
1d4e8b0d | 1517 | vpn_leak_postchange(idir, afi, bgp_get_default(), to_bgp); |
44338987 | 1518 | } |
1519 | ||
1d4e8b0d | 1520 | void vrf_unimport_from_vrf(struct bgp *to_bgp, struct bgp *from_bgp, |
44338987 | 1521 | afi_t afi, safi_t safi) |
1522 | { | |
a8dadcf6 | 1523 | const char *export_name, *tmp_name; |
44338987 | 1524 | vpn_policy_direction_t idir, edir; |
1525 | char *vname; | |
1526 | struct ecommunity *ecom; | |
1527 | struct listnode *node; | |
1528 | ||
a8dadcf6 DS |
1529 | export_name = to_bgp->name ? to_bgp->name : BGP_DEFAULT_NAME; |
1530 | tmp_name = from_bgp->name ? from_bgp->name : BGP_DEFAULT_NAME; | |
44338987 | 1531 | idir = BGP_VPN_POLICY_DIR_FROMVPN; |
1532 | edir = BGP_VPN_POLICY_DIR_TOVPN; | |
1533 | ||
1534 | /* Were we importing from "import_vrf"? */ | |
1d4e8b0d DS |
1535 | for (ALL_LIST_ELEMENTS_RO(to_bgp->vpn_policy[afi].import_vrf, node, |
1536 | vname)) { | |
a8dadcf6 | 1537 | if (strcmp(vname, tmp_name) == 0) |
020a3f60 | 1538 | break; |
44338987 | 1539 | } |
1d4e8b0d DS |
1540 | |
1541 | /* | |
1542 | * We do not check in the cli if the passed in bgp | |
1543 | * instance is actually imported into us before | |
1544 | * we call this function. As such if we do not | |
1545 | * find this in the import_vrf list than | |
1546 | * we just need to return safely. | |
1547 | */ | |
44338987 | 1548 | if (!vname) |
1549 | return; | |
1550 | ||
1551 | /* Remove "import_vrf" from our import list. */ | |
1d4e8b0d | 1552 | listnode_delete(to_bgp->vpn_policy[afi].import_vrf, vname); |
44338987 | 1553 | XFREE(MTYPE_TMP, vname); |
1554 | ||
1555 | /* Remove routes imported from "import_vrf". */ | |
1556 | /* TODO: In the current logic, we have to first remove all | |
1557 | * imported routes and then (if needed) import back routes | |
1558 | */ | |
1d4e8b0d | 1559 | vpn_leak_prechange(idir, afi, bgp_get_default(), to_bgp); |
44338987 | 1560 | |
1d4e8b0d DS |
1561 | if (to_bgp->vpn_policy[afi].import_vrf->count == 0) { |
1562 | UNSET_FLAG(to_bgp->af_flags[afi][safi], | |
44338987 | 1563 | BGP_CONFIG_VRF_TO_VRF_IMPORT); |
1d4e8b0d | 1564 | ecommunity_free(&to_bgp->vpn_policy[afi].rtlist[idir]); |
44338987 | 1565 | } else { |
1d4e8b0d DS |
1566 | ecom = from_bgp->vpn_policy[afi].rtlist[edir]; |
1567 | ecommunity_del_val(to_bgp->vpn_policy[afi].rtlist[idir], | |
44338987 | 1568 | (struct ecommunity_val *)ecom->val); |
1d4e8b0d | 1569 | vpn_leak_postchange(idir, afi, bgp_get_default(), to_bgp); |
44338987 | 1570 | } |
1571 | ||
89d59347 DS |
1572 | /* |
1573 | * What? | |
1574 | * So SA is assuming that since the ALL_LIST_ELEMENTS_RO | |
1575 | * below is checking for NULL that export_vrf can be | |
1576 | * NULL, consequently it is complaining( like a cabbage ) | |
1577 | * that we could dereference and crash in the listcount(..) | |
1578 | * check below. | |
1579 | * So make it happy, under protest, with liberty and justice | |
1580 | * for all. | |
1581 | */ | |
1d4e8b0d | 1582 | assert(from_bgp->vpn_policy[afi].export_vrf); |
89d59347 | 1583 | |
44338987 | 1584 | /* Remove us from "import_vrf's" export list. If no other VRF |
1585 | * is importing from "import_vrf", cleanup appropriately. | |
1586 | */ | |
1d4e8b0d | 1587 | for (ALL_LIST_ELEMENTS_RO(from_bgp->vpn_policy[afi].export_vrf, |
44338987 | 1588 | node, vname)) { |
1589 | if (strcmp(vname, export_name) == 0) | |
1590 | break; | |
1591 | } | |
1592 | ||
1d4e8b0d DS |
1593 | /* |
1594 | * If we have gotten to this point then the vname must | |
1595 | * exist. If not, we are in a world of trouble and | |
1596 | * have slag sitting around. | |
1597 | * | |
1598 | * import_vrf and export_vrf must match in having | |
1599 | * the in/out names as appropriate. | |
1600 | */ | |
1601 | assert(vname); | |
1602 | ||
1603 | listnode_delete(from_bgp->vpn_policy[afi].export_vrf, vname); | |
44338987 | 1604 | XFREE(MTYPE_TMP, vname); |
1605 | ||
1d4e8b0d DS |
1606 | if (!listcount(from_bgp->vpn_policy[afi].export_vrf)) { |
1607 | vpn_leak_prechange(edir, afi, bgp_get_default(), from_bgp); | |
1608 | ecommunity_free(&from_bgp->vpn_policy[afi].rtlist[edir]); | |
1609 | UNSET_FLAG(from_bgp->af_flags[afi][safi], | |
44338987 | 1610 | BGP_CONFIG_VRF_TO_VRF_EXPORT); |
1d4e8b0d | 1611 | memset(&from_bgp->vpn_policy[afi].tovpn_rd, 0, |
44338987 | 1612 | sizeof(struct prefix_rd)); |
1d4e8b0d | 1613 | UNSET_FLAG(from_bgp->vpn_policy[afi].flags, |
44338987 | 1614 | BGP_VPN_POLICY_TOVPN_RD_SET); |
1615 | } | |
1616 | } | |
1617 | ||
718e3744 | 1618 | /* For testing purpose, static route of MPLS-VPN. */ |
1619 | DEFUN (vpnv4_network, | |
1620 | vpnv4_network_cmd, | |
d114b977 | 1621 | "network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
718e3744 | 1622 | "Specify a network to announce via BGP\n" |
0c7b1b01 | 1623 | "IPv4 prefix\n" |
718e3744 | 1624 | "Specify Route Distinguisher\n" |
1625 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1626 | "VPN NLRI label (tag)\n" |
1627 | "VPN NLRI label (tag)\n" | |
1628 | "Label value\n") | |
718e3744 | 1629 | { |
d62a17ae | 1630 | int idx_ipv4_prefixlen = 1; |
1631 | int idx_ext_community = 3; | |
1632 | int idx_label = 5; | |
1633 | return bgp_static_set_safi( | |
1634 | AFI_IP, SAFI_MPLS_VPN, vty, argv[idx_ipv4_prefixlen]->arg, | |
1635 | argv[idx_ext_community]->arg, argv[idx_label]->arg, NULL, 0, | |
1636 | NULL, NULL, NULL, NULL); | |
137446f9 LB |
1637 | } |
1638 | ||
1639 | DEFUN (vpnv4_network_route_map, | |
1640 | vpnv4_network_route_map_cmd, | |
d114b977 | 1641 | "network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575) route-map WORD", |
137446f9 | 1642 | "Specify a network to announce via BGP\n" |
0c7b1b01 | 1643 | "IPv4 prefix\n" |
137446f9 LB |
1644 | "Specify Route Distinguisher\n" |
1645 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1646 | "VPN NLRI label (tag)\n" |
1647 | "VPN NLRI label (tag)\n" | |
1648 | "Label value\n" | |
137446f9 LB |
1649 | "route map\n" |
1650 | "route map name\n") | |
1651 | { | |
d62a17ae | 1652 | int idx_ipv4_prefixlen = 1; |
1653 | int idx_ext_community = 3; | |
1654 | int idx_label = 5; | |
1655 | int idx_word_2 = 7; | |
1656 | return bgp_static_set_safi( | |
1657 | AFI_IP, SAFI_MPLS_VPN, vty, argv[idx_ipv4_prefixlen]->arg, | |
1658 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1659 | argv[idx_word_2]->arg, 0, NULL, NULL, NULL, NULL); | |
718e3744 | 1660 | } |
1661 | ||
1662 | /* For testing purpose, static route of MPLS-VPN. */ | |
1663 | DEFUN (no_vpnv4_network, | |
1664 | no_vpnv4_network_cmd, | |
d114b977 | 1665 | "no network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
718e3744 | 1666 | NO_STR |
1667 | "Specify a network to announce via BGP\n" | |
0c7b1b01 | 1668 | "IPv4 prefix\n" |
718e3744 | 1669 | "Specify Route Distinguisher\n" |
1670 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1671 | "VPN NLRI label (tag)\n" |
1672 | "VPN NLRI label (tag)\n" | |
1673 | "Label value\n") | |
718e3744 | 1674 | { |
d62a17ae | 1675 | int idx_ipv4_prefixlen = 2; |
1676 | int idx_ext_community = 4; | |
1677 | int idx_label = 6; | |
1678 | return bgp_static_unset_safi(AFI_IP, SAFI_MPLS_VPN, vty, | |
1679 | argv[idx_ipv4_prefixlen]->arg, | |
1680 | argv[idx_ext_community]->arg, | |
1681 | argv[idx_label]->arg, 0, NULL, NULL, NULL); | |
718e3744 | 1682 | } |
1683 | ||
c286be96 LX |
1684 | DEFUN (vpnv6_network, |
1685 | vpnv6_network_cmd, | |
d114b977 | 1686 | "network X:X::X:X/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575) [route-map WORD]", |
c286be96 LX |
1687 | "Specify a network to announce via BGP\n" |
1688 | "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n" | |
1689 | "Specify Route Distinguisher\n" | |
1690 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1691 | "VPN NLRI label (tag)\n" |
1692 | "VPN NLRI label (tag)\n" | |
1693 | "Label value\n" | |
11daee81 DS |
1694 | "route map\n" |
1695 | "route map name\n") | |
c286be96 | 1696 | { |
d62a17ae | 1697 | int idx_ipv6_prefix = 1; |
1698 | int idx_ext_community = 3; | |
1699 | int idx_label = 5; | |
1700 | int idx_word_2 = 7; | |
1701 | if (argc == 8) | |
1702 | return bgp_static_set_safi( | |
1703 | AFI_IP6, SAFI_MPLS_VPN, vty, argv[idx_ipv6_prefix]->arg, | |
1704 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1705 | argv[idx_word_2]->arg, 0, NULL, NULL, NULL, NULL); | |
1706 | else | |
1707 | return bgp_static_set_safi( | |
1708 | AFI_IP6, SAFI_MPLS_VPN, vty, argv[idx_ipv6_prefix]->arg, | |
1709 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1710 | NULL, 0, NULL, NULL, NULL, NULL); | |
c286be96 LX |
1711 | } |
1712 | ||
1713 | /* For testing purpose, static route of MPLS-VPN. */ | |
1714 | DEFUN (no_vpnv6_network, | |
1715 | no_vpnv6_network_cmd, | |
d114b977 | 1716 | "no network X:X::X:X/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
c286be96 LX |
1717 | NO_STR |
1718 | "Specify a network to announce via BGP\n" | |
1719 | "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n" | |
1720 | "Specify Route Distinguisher\n" | |
1721 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1722 | "VPN NLRI label (tag)\n" |
1723 | "VPN NLRI label (tag)\n" | |
1724 | "Label value\n") | |
c286be96 | 1725 | { |
d62a17ae | 1726 | int idx_ipv6_prefix = 2; |
1727 | int idx_ext_community = 4; | |
1728 | int idx_label = 6; | |
1729 | return bgp_static_unset_safi(AFI_IP6, SAFI_MPLS_VPN, vty, | |
1730 | argv[idx_ipv6_prefix]->arg, | |
1731 | argv[idx_ext_community]->arg, | |
1732 | argv[idx_label]->arg, 0, NULL, NULL, NULL); | |
c286be96 LX |
1733 | } |
1734 | ||
d62a17ae | 1735 | int bgp_show_mpls_vpn(struct vty *vty, afi_t afi, struct prefix_rd *prd, |
1736 | enum bgp_show_type type, void *output_arg, int tags, | |
d7c0a89a | 1737 | uint8_t use_json) |
718e3744 | 1738 | { |
d62a17ae | 1739 | struct bgp *bgp; |
1740 | struct bgp_table *table; | |
d62a17ae | 1741 | |
1742 | bgp = bgp_get_default(); | |
1743 | if (bgp == NULL) { | |
1744 | if (!use_json) | |
1745 | vty_out(vty, "No BGP process is configured\n"); | |
16307668 RW |
1746 | else |
1747 | vty_out(vty, "{}\n"); | |
d62a17ae | 1748 | return CMD_WARNING; |
1749 | } | |
1ae44dfc | 1750 | table = bgp->rib[afi][SAFI_MPLS_VPN]; |
a4d82a8a PZ |
1751 | return bgp_show_table_rd(vty, bgp, SAFI_MPLS_VPN, table, prd, type, |
1752 | output_arg, use_json); | |
718e3744 | 1753 | } |
1754 | ||
4f280b15 LB |
1755 | DEFUN (show_bgp_ip_vpn_all_rd, |
1756 | show_bgp_ip_vpn_all_rd_cmd, | |
d114b977 | 1757 | "show bgp "BGP_AFI_CMD_STR" vpn all [rd ASN:NN_OR_IP-ADDRESS:NN] [json]", |
e3e29b32 LB |
1758 | SHOW_STR |
1759 | BGP_STR | |
05e588f4 | 1760 | BGP_VPNVX_HELP_STR |
e3e29b32 | 1761 | "Display VPN NLRI specific information\n" |
af8528fa | 1762 | "Display VPN NLRI specific information\n" |
e3e29b32 LB |
1763 | "Display information for a route distinguisher\n" |
1764 | "VPN Route Distinguisher\n" | |
1765 | JSON_STR) | |
1766 | { | |
d62a17ae | 1767 | int ret; |
1768 | struct prefix_rd prd; | |
1769 | afi_t afi; | |
1770 | int idx = 0; | |
1771 | ||
1772 | if (argv_find_and_parse_afi(argv, argc, &idx, &afi)) { | |
3d7c4cd7 | 1773 | if (argv_find(argv, argc, "rd", &idx)) { |
a4d82a8a | 1774 | ret = str2prefix_rd(argv[idx + 1]->arg, &prd); |
d62a17ae | 1775 | if (!ret) { |
1776 | vty_out(vty, | |
1777 | "%% Malformed Route Distinguisher\n"); | |
1778 | return CMD_WARNING; | |
1779 | } | |
1780 | return bgp_show_mpls_vpn(vty, afi, &prd, | |
1781 | bgp_show_type_normal, NULL, 0, | |
1782 | use_json(argc, argv)); | |
1783 | } else { | |
1784 | return bgp_show_mpls_vpn(vty, afi, NULL, | |
1785 | bgp_show_type_normal, NULL, 0, | |
1786 | use_json(argc, argv)); | |
1787 | } | |
1788 | } | |
1789 | return CMD_SUCCESS; | |
718e3744 | 1790 | } |
1791 | ||
af8528fa LB |
1792 | ALIAS(show_bgp_ip_vpn_all_rd, |
1793 | show_bgp_ip_vpn_rd_cmd, | |
1794 | "show bgp "BGP_AFI_CMD_STR" vpn rd ASN:NN_OR_IP-ADDRESS:NN [json]", | |
1795 | SHOW_STR | |
1796 | BGP_STR | |
1797 | BGP_VPNVX_HELP_STR | |
1798 | "Display VPN NLRI specific information\n" | |
1799 | "Display information for a route distinguisher\n" | |
1800 | "VPN Route Distinguisher\n" | |
1801 | JSON_STR) | |
1802 | ||
1803 | #ifdef KEEP_OLD_VPN_COMMANDS | |
3f227172 PG |
1804 | DEFUN (show_ip_bgp_vpn_rd, |
1805 | show_ip_bgp_vpn_rd_cmd, | |
af8528fa | 1806 | "show ip bgp "BGP_AFI_CMD_STR" vpn rd ASN:NN_OR_IP-ADDRESS:NN", |
718e3744 | 1807 | SHOW_STR |
1808 | IP_STR | |
1809 | BGP_STR | |
4f280b15 | 1810 | BGP_AFI_HELP_STR |
3517059b | 1811 | "Address Family modifier\n" |
718e3744 | 1812 | "Display information for a route distinguisher\n" |
1813 | "VPN Route Distinguisher\n") | |
1814 | { | |
d62a17ae | 1815 | int idx_ext_community = argc - 1; |
1816 | int ret; | |
1817 | struct prefix_rd prd; | |
1818 | afi_t afi; | |
1819 | int idx = 0; | |
1820 | ||
1821 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1822 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1823 | if (!ret) { | |
1824 | vty_out(vty, "%% Malformed Route Distinguisher\n"); | |
1825 | return CMD_WARNING; | |
1826 | } | |
1827 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_normal, | |
1828 | NULL, 0, 0); | |
1829 | } | |
1830 | return CMD_SUCCESS; | |
1831 | } | |
718e3744 | 1832 | |
4f280b15 LB |
1833 | DEFUN (show_ip_bgp_vpn_all, |
1834 | show_ip_bgp_vpn_all_cmd, | |
1835 | "show [ip] bgp <vpnv4|vpnv6>", | |
1836 | SHOW_STR | |
1837 | IP_STR | |
1838 | BGP_STR | |
1839 | BGP_VPNVX_HELP_STR) | |
1840 | { | |
d62a17ae | 1841 | afi_t afi; |
1842 | int idx = 0; | |
4f280b15 | 1843 | |
d62a17ae | 1844 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) |
1845 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_normal, | |
1846 | NULL, 0, 0); | |
1847 | return CMD_SUCCESS; | |
4f280b15 LB |
1848 | } |
1849 | ||
3f227172 PG |
1850 | DEFUN (show_ip_bgp_vpn_all_tags, |
1851 | show_ip_bgp_vpn_all_tags_cmd, | |
1852 | "show [ip] bgp <vpnv4|vpnv6> all tags", | |
718e3744 | 1853 | SHOW_STR |
1854 | IP_STR | |
1855 | BGP_STR | |
3f227172 PG |
1856 | BGP_VPNVX_HELP_STR |
1857 | "Display information about all VPNv4/VPNV6 NLRIs\n" | |
718e3744 | 1858 | "Display BGP tags for prefixes\n") |
1859 | { | |
d62a17ae | 1860 | afi_t afi; |
1861 | int idx = 0; | |
3f227172 | 1862 | |
d62a17ae | 1863 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) |
1864 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_normal, | |
1865 | NULL, 1, 0); | |
1866 | return CMD_SUCCESS; | |
718e3744 | 1867 | } |
1868 | ||
3f227172 PG |
1869 | DEFUN (show_ip_bgp_vpn_rd_tags, |
1870 | show_ip_bgp_vpn_rd_tags_cmd, | |
d114b977 | 1871 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN tags", |
718e3744 | 1872 | SHOW_STR |
1873 | IP_STR | |
1874 | BGP_STR | |
3f227172 | 1875 | BGP_VPNVX_HELP_STR |
718e3744 | 1876 | "Display information for a route distinguisher\n" |
1877 | "VPN Route Distinguisher\n" | |
1878 | "Display BGP tags for prefixes\n") | |
1879 | { | |
d62a17ae | 1880 | int idx_ext_community = 5; |
1881 | int ret; | |
1882 | struct prefix_rd prd; | |
1883 | afi_t afi; | |
1884 | int idx = 0; | |
1885 | ||
1886 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1887 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1888 | if (!ret) { | |
1889 | vty_out(vty, "%% Malformed Route Distinguisher\n"); | |
1890 | return CMD_WARNING; | |
1891 | } | |
1892 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_normal, | |
1893 | NULL, 1, 0); | |
1894 | } | |
1895 | return CMD_SUCCESS; | |
718e3744 | 1896 | } |
1897 | ||
3f227172 PG |
1898 | DEFUN (show_ip_bgp_vpn_all_neighbor_routes, |
1899 | show_ip_bgp_vpn_all_neighbor_routes_cmd, | |
1900 | "show [ip] bgp <vpnv4|vpnv6> all neighbors A.B.C.D routes [json]", | |
718e3744 | 1901 | SHOW_STR |
1902 | IP_STR | |
1903 | BGP_STR | |
3f227172 PG |
1904 | BGP_VPNVX_HELP_STR |
1905 | "Display information about all VPNv4/VPNv6 NLRIs\n" | |
718e3744 | 1906 | "Detailed information on TCP and BGP neighbor connections\n" |
1907 | "Neighbor to display information about\n" | |
856ca177 | 1908 | "Display routes learned from neighbor\n" |
9973d184 | 1909 | JSON_STR) |
718e3744 | 1910 | { |
d62a17ae | 1911 | int idx_ipv4 = 6; |
1912 | union sockunion su; | |
1913 | struct peer *peer; | |
1914 | int ret; | |
d7c0a89a | 1915 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 1916 | afi_t afi; |
1917 | int idx = 0; | |
1918 | ||
1919 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1920 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
1921 | if (ret < 0) { | |
1922 | if (uj) { | |
1923 | json_object *json_no = NULL; | |
1924 | json_no = json_object_new_object(); | |
1925 | json_object_string_add(json_no, "warning", | |
1926 | "Malformed address"); | |
1927 | vty_out(vty, "%s\n", | |
1928 | json_object_to_json_string(json_no)); | |
1929 | json_object_free(json_no); | |
1930 | } else | |
1931 | vty_out(vty, "Malformed address: %s\n", | |
1932 | argv[idx_ipv4]->arg); | |
1933 | return CMD_WARNING; | |
1934 | } | |
1935 | ||
1936 | peer = peer_lookup(NULL, &su); | |
1937 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
1938 | if (uj) { | |
1939 | json_object *json_no = NULL; | |
1940 | json_no = json_object_new_object(); | |
1941 | json_object_string_add( | |
1942 | json_no, "warning", | |
1943 | "No such neighbor or address family"); | |
1944 | vty_out(vty, "%s\n", | |
1945 | json_object_to_json_string(json_no)); | |
1946 | json_object_free(json_no); | |
1947 | } else | |
1948 | vty_out(vty, | |
1949 | "%% No such neighbor or address family\n"); | |
1950 | return CMD_WARNING; | |
1951 | } | |
1952 | ||
1953 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_neighbor, | |
1954 | &su, 0, uj); | |
1955 | } | |
1956 | return CMD_SUCCESS; | |
718e3744 | 1957 | } |
1958 | ||
3f227172 PG |
1959 | DEFUN (show_ip_bgp_vpn_rd_neighbor_routes, |
1960 | show_ip_bgp_vpn_rd_neighbor_routes_cmd, | |
d114b977 | 1961 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN neighbors A.B.C.D routes [json]", |
718e3744 | 1962 | SHOW_STR |
1963 | IP_STR | |
1964 | BGP_STR | |
3f227172 | 1965 | BGP_VPNVX_HELP_STR |
718e3744 | 1966 | "Display information for a route distinguisher\n" |
1967 | "VPN Route Distinguisher\n" | |
1968 | "Detailed information on TCP and BGP neighbor connections\n" | |
1969 | "Neighbor to display information about\n" | |
856ca177 | 1970 | "Display routes learned from neighbor\n" |
9973d184 | 1971 | JSON_STR) |
718e3744 | 1972 | { |
d62a17ae | 1973 | int idx_ext_community = 5; |
1974 | int idx_ipv4 = 7; | |
1975 | int ret; | |
1976 | union sockunion su; | |
1977 | struct peer *peer; | |
1978 | struct prefix_rd prd; | |
d7c0a89a | 1979 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 1980 | afi_t afi; |
1981 | int idx = 0; | |
1982 | ||
1983 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1984 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1985 | if (!ret) { | |
1986 | if (uj) { | |
1987 | json_object *json_no = NULL; | |
1988 | json_no = json_object_new_object(); | |
1989 | json_object_string_add( | |
1990 | json_no, "warning", | |
1991 | "Malformed Route Distinguisher"); | |
1992 | vty_out(vty, "%s\n", | |
1993 | json_object_to_json_string(json_no)); | |
1994 | json_object_free(json_no); | |
1995 | } else | |
1996 | vty_out(vty, | |
1997 | "%% Malformed Route Distinguisher\n"); | |
1998 | return CMD_WARNING; | |
1999 | } | |
2000 | ||
2001 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
2002 | if (ret < 0) { | |
2003 | if (uj) { | |
2004 | json_object *json_no = NULL; | |
2005 | json_no = json_object_new_object(); | |
2006 | json_object_string_add(json_no, "warning", | |
2007 | "Malformed address"); | |
2008 | vty_out(vty, "%s\n", | |
2009 | json_object_to_json_string(json_no)); | |
2010 | json_object_free(json_no); | |
2011 | } else | |
2012 | vty_out(vty, "Malformed address: %s\n", | |
2013 | argv[idx_ext_community]->arg); | |
2014 | return CMD_WARNING; | |
2015 | } | |
2016 | ||
2017 | peer = peer_lookup(NULL, &su); | |
2018 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
2019 | if (uj) { | |
2020 | json_object *json_no = NULL; | |
2021 | json_no = json_object_new_object(); | |
2022 | json_object_string_add( | |
2023 | json_no, "warning", | |
2024 | "No such neighbor or address family"); | |
2025 | vty_out(vty, "%s\n", | |
2026 | json_object_to_json_string(json_no)); | |
2027 | json_object_free(json_no); | |
2028 | } else | |
2029 | vty_out(vty, | |
2030 | "%% No such neighbor or address family\n"); | |
2031 | return CMD_WARNING; | |
2032 | } | |
2033 | ||
2034 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_neighbor, | |
2035 | &su, 0, uj); | |
2036 | } | |
2037 | return CMD_SUCCESS; | |
718e3744 | 2038 | } |
2039 | ||
3f227172 PG |
2040 | DEFUN (show_ip_bgp_vpn_all_neighbor_advertised_routes, |
2041 | show_ip_bgp_vpn_all_neighbor_advertised_routes_cmd, | |
2042 | "show [ip] bgp <vpnv4|vpnv6> all neighbors A.B.C.D advertised-routes [json]", | |
718e3744 | 2043 | SHOW_STR |
2044 | IP_STR | |
2045 | BGP_STR | |
3f227172 PG |
2046 | BGP_VPNVX_HELP_STR |
2047 | "Display information about all VPNv4/VPNv6 NLRIs\n" | |
718e3744 | 2048 | "Detailed information on TCP and BGP neighbor connections\n" |
2049 | "Neighbor to display information about\n" | |
856ca177 | 2050 | "Display the routes advertised to a BGP neighbor\n" |
9973d184 | 2051 | JSON_STR) |
718e3744 | 2052 | { |
d62a17ae | 2053 | int idx_ipv4 = 6; |
2054 | int ret; | |
2055 | struct peer *peer; | |
2056 | union sockunion su; | |
d7c0a89a | 2057 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 2058 | afi_t afi; |
2059 | int idx = 0; | |
2060 | ||
2061 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
2062 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
2063 | if (ret < 0) { | |
2064 | if (uj) { | |
2065 | json_object *json_no = NULL; | |
2066 | json_no = json_object_new_object(); | |
2067 | json_object_string_add(json_no, "warning", | |
2068 | "Malformed address"); | |
2069 | vty_out(vty, "%s\n", | |
2070 | json_object_to_json_string(json_no)); | |
2071 | json_object_free(json_no); | |
2072 | } else | |
2073 | vty_out(vty, "Malformed address: %s\n", | |
2074 | argv[idx_ipv4]->arg); | |
2075 | return CMD_WARNING; | |
2076 | } | |
2077 | peer = peer_lookup(NULL, &su); | |
2078 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
2079 | if (uj) { | |
2080 | json_object *json_no = NULL; | |
2081 | json_no = json_object_new_object(); | |
2082 | json_object_string_add( | |
2083 | json_no, "warning", | |
2084 | "No such neighbor or address family"); | |
2085 | vty_out(vty, "%s\n", | |
2086 | json_object_to_json_string(json_no)); | |
2087 | json_object_free(json_no); | |
2088 | } else | |
2089 | vty_out(vty, | |
2090 | "%% No such neighbor or address family\n"); | |
2091 | return CMD_WARNING; | |
2092 | } | |
2093 | return show_adj_route_vpn(vty, peer, NULL, AFI_IP, | |
2094 | SAFI_MPLS_VPN, uj); | |
2095 | } | |
2096 | return CMD_SUCCESS; | |
718e3744 | 2097 | } |
2098 | ||
3f227172 PG |
2099 | DEFUN (show_ip_bgp_vpn_rd_neighbor_advertised_routes, |
2100 | show_ip_bgp_vpn_rd_neighbor_advertised_routes_cmd, | |
d114b977 | 2101 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN neighbors A.B.C.D advertised-routes [json]", |
718e3744 | 2102 | SHOW_STR |
2103 | IP_STR | |
2104 | BGP_STR | |
3f227172 | 2105 | BGP_VPNVX_HELP_STR |
718e3744 | 2106 | "Display information for a route distinguisher\n" |
2107 | "VPN Route Distinguisher\n" | |
2108 | "Detailed information on TCP and BGP neighbor connections\n" | |
2109 | "Neighbor to display information about\n" | |
856ca177 | 2110 | "Display the routes advertised to a BGP neighbor\n" |
9973d184 | 2111 | JSON_STR) |
718e3744 | 2112 | { |
d62a17ae | 2113 | int idx_ext_community = 5; |
2114 | int idx_ipv4 = 7; | |
2115 | int ret; | |
2116 | struct peer *peer; | |
2117 | struct prefix_rd prd; | |
2118 | union sockunion su; | |
d7c0a89a | 2119 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 2120 | afi_t afi; |
2121 | int idx = 0; | |
2122 | ||
2123 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
2124 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
2125 | if (ret < 0) { | |
2126 | if (uj) { | |
2127 | json_object *json_no = NULL; | |
2128 | json_no = json_object_new_object(); | |
2129 | json_object_string_add(json_no, "warning", | |
2130 | "Malformed address"); | |
2131 | vty_out(vty, "%s\n", | |
2132 | json_object_to_json_string(json_no)); | |
2133 | json_object_free(json_no); | |
2134 | } else | |
2135 | vty_out(vty, "Malformed address: %s\n", | |
2136 | argv[idx_ext_community]->arg); | |
2137 | return CMD_WARNING; | |
2138 | } | |
2139 | peer = peer_lookup(NULL, &su); | |
2140 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
2141 | if (uj) { | |
2142 | json_object *json_no = NULL; | |
2143 | json_no = json_object_new_object(); | |
2144 | json_object_string_add( | |
2145 | json_no, "warning", | |
2146 | "No such neighbor or address family"); | |
2147 | vty_out(vty, "%s\n", | |
2148 | json_object_to_json_string(json_no)); | |
2149 | json_object_free(json_no); | |
2150 | } else | |
2151 | vty_out(vty, | |
2152 | "%% No such neighbor or address family\n"); | |
2153 | return CMD_WARNING; | |
2154 | } | |
2155 | ||
2156 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
2157 | if (!ret) { | |
2158 | if (uj) { | |
2159 | json_object *json_no = NULL; | |
2160 | json_no = json_object_new_object(); | |
2161 | json_object_string_add( | |
2162 | json_no, "warning", | |
2163 | "Malformed Route Distinguisher"); | |
2164 | vty_out(vty, "%s\n", | |
2165 | json_object_to_json_string(json_no)); | |
2166 | json_object_free(json_no); | |
2167 | } else | |
2168 | vty_out(vty, | |
2169 | "%% Malformed Route Distinguisher\n"); | |
2170 | return CMD_WARNING; | |
2171 | } | |
2172 | ||
2173 | return show_adj_route_vpn(vty, peer, &prd, AFI_IP, | |
2174 | SAFI_MPLS_VPN, uj); | |
2175 | } | |
2176 | return CMD_SUCCESS; | |
718e3744 | 2177 | } |
d6902373 | 2178 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
718e3744 | 2179 | |
d62a17ae | 2180 | void bgp_mplsvpn_init(void) |
718e3744 | 2181 | { |
d62a17ae | 2182 | install_element(BGP_VPNV4_NODE, &vpnv4_network_cmd); |
2183 | install_element(BGP_VPNV4_NODE, &vpnv4_network_route_map_cmd); | |
2184 | install_element(BGP_VPNV4_NODE, &no_vpnv4_network_cmd); | |
718e3744 | 2185 | |
d62a17ae | 2186 | install_element(BGP_VPNV6_NODE, &vpnv6_network_cmd); |
2187 | install_element(BGP_VPNV6_NODE, &no_vpnv6_network_cmd); | |
c286be96 | 2188 | |
d62a17ae | 2189 | install_element(VIEW_NODE, &show_bgp_ip_vpn_all_rd_cmd); |
af8528fa | 2190 | install_element(VIEW_NODE, &show_bgp_ip_vpn_rd_cmd); |
d6902373 | 2191 | #ifdef KEEP_OLD_VPN_COMMANDS |
af8528fa | 2192 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_cmd); |
d62a17ae | 2193 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_cmd); |
2194 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_tags_cmd); | |
2195 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_tags_cmd); | |
2196 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_neighbor_routes_cmd); | |
2197 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_neighbor_routes_cmd); | |
2198 | install_element(VIEW_NODE, | |
2199 | &show_ip_bgp_vpn_all_neighbor_advertised_routes_cmd); | |
2200 | install_element(VIEW_NODE, | |
2201 | &show_ip_bgp_vpn_rd_neighbor_advertised_routes_cmd); | |
d6902373 | 2202 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
718e3744 | 2203 | } |
301ad80a PG |
2204 | |
2205 | vrf_id_t get_first_vrf_for_redirect_with_rt(struct ecommunity *eckey) | |
2206 | { | |
2207 | struct listnode *mnode, *mnnode; | |
2208 | struct bgp *bgp; | |
2209 | ||
2210 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
2211 | struct ecommunity *ec; | |
2212 | ||
2213 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VRF) | |
2214 | continue; | |
2215 | ||
2216 | ec = bgp->vpn_policy[AFI_IP].import_redirect_rtlist; | |
2217 | ||
2218 | if (ecom_intersect(ec, eckey)) | |
2219 | return bgp->vrf_id; | |
2220 | } | |
2221 | return VRF_UNKNOWN; | |
2222 | } |