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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; | |
13b7e7f0 DS |
90 | if (label == BGP_PREVENT_VRF_2_VRF_LEAK) { |
91 | *label_pnt = label; | |
92 | return; | |
93 | } | |
d62a17ae | 94 | *pnt++ = (label >> 12) & 0xff; |
95 | *pnt++ = (label >> 4) & 0xff; | |
96 | *pnt++ = ((label << 4) + 1) & 0xff; /* S=1 */ | |
65efcfce LB |
97 | } |
98 | ||
d62a17ae | 99 | int bgp_nlri_parse_vpn(struct peer *peer, struct attr *attr, |
100 | struct bgp_nlri *packet) | |
718e3744 | 101 | { |
d7c0a89a QY |
102 | uint8_t *pnt; |
103 | uint8_t *lim; | |
d62a17ae | 104 | struct prefix p; |
105 | int psize = 0; | |
106 | int prefixlen; | |
d7c0a89a | 107 | uint16_t type; |
d62a17ae | 108 | struct rd_as rd_as; |
109 | struct rd_ip rd_ip; | |
110 | struct prefix_rd prd; | |
ddb5b488 | 111 | mpls_label_t label = {0}; |
d62a17ae | 112 | afi_t afi; |
113 | safi_t safi; | |
114 | int addpath_encoded; | |
d7c0a89a | 115 | uint32_t addpath_id; |
d62a17ae | 116 | |
d62a17ae | 117 | /* Make prefix_rd */ |
118 | prd.family = AF_UNSPEC; | |
119 | prd.prefixlen = 64; | |
120 | ||
121 | pnt = packet->nlri; | |
122 | lim = pnt + packet->length; | |
123 | afi = packet->afi; | |
124 | safi = packet->safi; | |
125 | addpath_id = 0; | |
126 | ||
127 | addpath_encoded = | |
128 | (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ADDPATH_AF_RX_ADV) | |
129 | && CHECK_FLAG(peer->af_cap[afi][safi], | |
130 | PEER_CAP_ADDPATH_AF_TX_RCV)); | |
718e3744 | 131 | |
50905aa2 | 132 | #define VPN_PREFIXLEN_MIN_BYTES (3 + 8) /* label + RD */ |
d62a17ae | 133 | for (; pnt < lim; pnt += psize) { |
134 | /* Clear prefix structure. */ | |
135 | memset(&p, 0, sizeof(struct prefix)); | |
136 | ||
137 | if (addpath_encoded) { | |
138 | ||
139 | /* When packet overflow occurs return immediately. */ | |
140 | if (pnt + BGP_ADDPATH_ID_LEN > lim) | |
141 | return -1; | |
142 | ||
143 | addpath_id = ntohl(*((uint32_t *)pnt)); | |
144 | pnt += BGP_ADDPATH_ID_LEN; | |
145 | } | |
146 | ||
147 | /* Fetch prefix length. */ | |
148 | prefixlen = *pnt++; | |
149 | p.family = afi2family(packet->afi); | |
150 | psize = PSIZE(prefixlen); | |
151 | ||
152 | if (prefixlen < VPN_PREFIXLEN_MIN_BYTES * 8) { | |
153 | zlog_err( | |
154 | "%s [Error] Update packet error / VPN (prefix length %d less than VPN min length)", | |
155 | peer->host, prefixlen); | |
156 | return -1; | |
157 | } | |
158 | ||
159 | /* sanity check against packet data */ | |
160 | if ((pnt + psize) > lim) { | |
161 | zlog_err( | |
162 | "%s [Error] Update packet error / VPN (prefix length %d exceeds packet size %u)", | |
163 | peer->host, prefixlen, (uint)(lim - pnt)); | |
164 | return -1; | |
165 | } | |
166 | ||
167 | /* sanity check against storage for the IP address portion */ | |
168 | if ((psize - VPN_PREFIXLEN_MIN_BYTES) > (ssize_t)sizeof(p.u)) { | |
169 | zlog_err( | |
170 | "%s [Error] Update packet error / VPN (psize %d exceeds storage size %zu)", | |
171 | peer->host, | |
172 | prefixlen - VPN_PREFIXLEN_MIN_BYTES * 8, | |
173 | sizeof(p.u)); | |
174 | return -1; | |
175 | } | |
176 | ||
177 | /* Sanity check against max bitlen of the address family */ | |
178 | if ((psize - VPN_PREFIXLEN_MIN_BYTES) > prefix_blen(&p)) { | |
179 | zlog_err( | |
180 | "%s [Error] Update packet error / VPN (psize %d exceeds family (%u) max byte len %u)", | |
181 | peer->host, | |
182 | prefixlen - VPN_PREFIXLEN_MIN_BYTES * 8, | |
183 | p.family, prefix_blen(&p)); | |
184 | return -1; | |
185 | } | |
186 | ||
187 | /* Copy label to prefix. */ | |
188 | memcpy(&label, pnt, BGP_LABEL_BYTES); | |
189 | bgp_set_valid_label(&label); | |
190 | ||
191 | /* Copy routing distinguisher to rd. */ | |
192 | memcpy(&prd.val, pnt + BGP_LABEL_BYTES, 8); | |
193 | ||
194 | /* Decode RD type. */ | |
195 | type = decode_rd_type(pnt + BGP_LABEL_BYTES); | |
196 | ||
197 | switch (type) { | |
198 | case RD_TYPE_AS: | |
199 | decode_rd_as(pnt + 5, &rd_as); | |
200 | break; | |
201 | ||
202 | case RD_TYPE_AS4: | |
203 | decode_rd_as4(pnt + 5, &rd_as); | |
204 | break; | |
205 | ||
206 | case RD_TYPE_IP: | |
207 | decode_rd_ip(pnt + 5, &rd_ip); | |
208 | break; | |
fe770c88 | 209 | |
65efcfce | 210 | #if ENABLE_BGP_VNC |
d62a17ae | 211 | case RD_TYPE_VNC_ETH: |
212 | break; | |
65efcfce LB |
213 | #endif |
214 | ||
d62a17ae | 215 | default: |
216 | zlog_err("Unknown RD type %d", type); | |
217 | break; /* just report */ | |
218 | } | |
219 | ||
220 | p.prefixlen = | |
221 | prefixlen | |
222 | - VPN_PREFIXLEN_MIN_BYTES * 8; /* exclude label & RD */ | |
223 | memcpy(&p.u.prefix, pnt + VPN_PREFIXLEN_MIN_BYTES, | |
224 | psize - VPN_PREFIXLEN_MIN_BYTES); | |
225 | ||
226 | if (attr) { | |
227 | bgp_update(peer, &p, addpath_id, attr, packet->afi, | |
228 | SAFI_MPLS_VPN, ZEBRA_ROUTE_BGP, | |
b57ba6d2 | 229 | BGP_ROUTE_NORMAL, &prd, &label, 1, 0, NULL); |
d62a17ae | 230 | } else { |
231 | bgp_withdraw(peer, &p, addpath_id, attr, packet->afi, | |
232 | SAFI_MPLS_VPN, ZEBRA_ROUTE_BGP, | |
b57ba6d2 | 233 | BGP_ROUTE_NORMAL, &prd, &label, 1, NULL); |
d62a17ae | 234 | } |
235 | } | |
236 | /* Packet length consistency check. */ | |
237 | if (pnt != lim) { | |
238 | zlog_err( | |
239 | "%s [Error] Update packet error / VPN (%zu data remaining after parsing)", | |
240 | peer->host, lim - pnt); | |
241 | return -1; | |
242 | } | |
243 | ||
244 | return 0; | |
50905aa2 | 245 | #undef VPN_PREFIXLEN_MIN_BYTES |
718e3744 | 246 | } |
247 | ||
ddb5b488 PZ |
248 | /* |
249 | * This function informs zebra of the label this vrf sets on routes | |
250 | * leaked to VPN. Zebra should install this label in the kernel with | |
251 | * an action of "pop label and then use this vrf's IP FIB to route the PDU." | |
252 | * | |
253 | * Sending this vrf-label association is qualified by a) whether vrf->vpn | |
254 | * exporting is active ("export vpn" is enabled, vpn-policy RD and RT list | |
255 | * are set) and b) whether vpn-policy label is set. | |
256 | * | |
257 | * If any of these conditions do not hold, then we send MPLS_LABEL_NONE | |
258 | * for this vrf, which zebra interprets to mean "delete this vrf-label | |
259 | * association." | |
260 | */ | |
261 | void vpn_leak_zebra_vrf_label_update(struct bgp *bgp, afi_t afi) | |
262 | { | |
263 | mpls_label_t label = MPLS_LABEL_NONE; | |
ddb5b488 PZ |
264 | int debug = BGP_DEBUG(vpn, VPN_LEAK_LABEL); |
265 | ||
ddb5b488 PZ |
266 | if (bgp->vrf_id == VRF_UNKNOWN) { |
267 | if (debug) { | |
268 | zlog_debug( | |
269 | "%s: vrf %s: afi %s: vrf_id not set, " | |
270 | "can't set zebra vrf label", | |
960035b2 | 271 | __func__, bgp->name_pretty, afi2str(afi)); |
ddb5b488 PZ |
272 | } |
273 | return; | |
274 | } | |
275 | ||
276 | if (vpn_leak_to_vpn_active(bgp, afi, NULL)) { | |
277 | label = bgp->vpn_policy[afi].tovpn_label; | |
278 | } | |
279 | ||
280 | if (debug) { | |
281 | zlog_debug("%s: vrf %s: afi %s: setting label %d for vrf id %d", | |
960035b2 PZ |
282 | __func__, bgp->name_pretty, afi2str(afi), label, |
283 | bgp->vrf_id); | |
ddb5b488 PZ |
284 | } |
285 | ||
286 | zclient_send_vrf_label(zclient, bgp->vrf_id, afi, label, ZEBRA_LSP_BGP); | |
287 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = label; | |
288 | } | |
289 | ||
290 | /* | |
291 | * If zebra tells us vrf has become unconfigured, tell zebra not to | |
292 | * use this label to forward to the vrf anymore | |
293 | */ | |
294 | void vpn_leak_zebra_vrf_label_withdraw(struct bgp *bgp, afi_t afi) | |
295 | { | |
296 | mpls_label_t label = MPLS_LABEL_NONE; | |
297 | int debug = BGP_DEBUG(vpn, VPN_LEAK_LABEL); | |
298 | ||
299 | if (bgp->vrf_id == VRF_UNKNOWN) { | |
300 | if (debug) { | |
301 | zlog_debug( | |
302 | "%s: vrf_id not set, can't delete zebra vrf label", | |
303 | __func__); | |
304 | } | |
305 | return; | |
306 | } | |
307 | ||
308 | if (debug) { | |
309 | zlog_debug("%s: deleting label for vrf %s (id=%d)", __func__, | |
960035b2 | 310 | bgp->name_pretty, bgp->vrf_id); |
ddb5b488 PZ |
311 | } |
312 | ||
313 | zclient_send_vrf_label(zclient, bgp->vrf_id, afi, label, ZEBRA_LSP_BGP); | |
314 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = label; | |
315 | } | |
316 | ||
e70e9f8e PZ |
317 | int vpn_leak_label_callback( |
318 | mpls_label_t label, | |
319 | void *labelid, | |
320 | bool allocated) | |
321 | { | |
322 | struct vpn_policy *vp = (struct vpn_policy *)labelid; | |
323 | int debug = BGP_DEBUG(vpn, VPN_LEAK_LABEL); | |
324 | ||
325 | if (debug) | |
326 | zlog_debug("%s: label=%u, allocated=%d", | |
327 | __func__, label, allocated); | |
328 | ||
329 | if (!allocated) { | |
330 | /* | |
331 | * previously-allocated label is now invalid | |
332 | */ | |
333 | if (CHECK_FLAG(vp->flags, BGP_VPN_POLICY_TOVPN_LABEL_AUTO) && | |
334 | (vp->tovpn_label != MPLS_LABEL_NONE)) { | |
335 | ||
336 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, | |
337 | vp->afi, bgp_get_default(), vp->bgp); | |
338 | vp->tovpn_label = MPLS_LABEL_NONE; | |
339 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, | |
340 | vp->afi, bgp_get_default(), vp->bgp); | |
341 | } | |
342 | return 0; | |
343 | } | |
344 | ||
345 | /* | |
346 | * New label allocation | |
347 | */ | |
348 | if (!CHECK_FLAG(vp->flags, BGP_VPN_POLICY_TOVPN_LABEL_AUTO)) { | |
349 | ||
350 | /* | |
351 | * not currently configured for auto label, reject allocation | |
352 | */ | |
353 | return -1; | |
354 | } | |
355 | ||
356 | if (vp->tovpn_label != MPLS_LABEL_NONE) { | |
357 | if (label == vp->tovpn_label) { | |
358 | /* already have same label, accept but do nothing */ | |
359 | return 0; | |
360 | } | |
361 | /* Shouldn't happen: different label allocation */ | |
362 | zlog_err("%s: %s had label %u but got new assignment %u", | |
363 | __func__, vp->bgp->name_pretty, vp->tovpn_label, label); | |
364 | /* use new one */ | |
365 | } | |
366 | ||
367 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, | |
368 | vp->afi, bgp_get_default(), vp->bgp); | |
369 | vp->tovpn_label = label; | |
370 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, | |
371 | vp->afi, bgp_get_default(), vp->bgp); | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
ddb5b488 PZ |
376 | static int ecom_intersect(struct ecommunity *e1, struct ecommunity *e2) |
377 | { | |
378 | int i; | |
379 | int j; | |
380 | ||
381 | if (!e1 || !e2) | |
382 | return 0; | |
383 | ||
384 | for (i = 0; i < e1->size; ++i) { | |
385 | for (j = 0; j < e2->size; ++j) { | |
386 | if (!memcmp(e1->val + (i * ECOMMUNITY_SIZE), | |
387 | e2->val + (j * ECOMMUNITY_SIZE), | |
388 | ECOMMUNITY_SIZE)) { | |
389 | ||
390 | return 1; | |
391 | } | |
392 | } | |
393 | } | |
394 | return 0; | |
395 | } | |
396 | ||
e37fb4bf PZ |
397 | static bool labels_same(struct bgp_info *bi, mpls_label_t *label, uint32_t n) |
398 | { | |
399 | uint32_t i; | |
400 | ||
401 | if (!bi->extra) { | |
402 | if (!n) | |
403 | return true; | |
404 | else | |
405 | return false; | |
406 | } | |
407 | ||
408 | if (n != bi->extra->num_labels) | |
409 | return false; | |
410 | ||
411 | for (i = 0; i < n; ++i) { | |
412 | if (label[i] != bi->extra->label[i]) | |
413 | return false; | |
414 | } | |
415 | return true; | |
416 | } | |
417 | ||
418 | /* | |
419 | * make encoded route labels match specified encoded label set | |
420 | */ | |
421 | static void setlabels( | |
422 | struct bgp_info *bi, | |
423 | mpls_label_t *label, /* array of labels */ | |
424 | uint32_t num_labels) | |
425 | { | |
426 | if (num_labels) | |
427 | assert(label); | |
428 | assert(num_labels <= BGP_MAX_LABELS); | |
429 | ||
430 | if (!num_labels) { | |
431 | if (bi->extra) | |
432 | bi->extra->num_labels = 0; | |
433 | return; | |
434 | } | |
435 | ||
436 | struct bgp_info_extra *extra = bgp_info_extra_get(bi); | |
437 | uint32_t i; | |
438 | ||
439 | for (i = 0; i < num_labels; ++i) { | |
440 | extra->label[i] = label[i]; | |
441 | if (!bgp_is_valid_label(&label[i])) { | |
442 | bgp_set_valid_label(&extra->label[i]); | |
443 | } | |
444 | } | |
445 | extra->num_labels = num_labels; | |
446 | } | |
447 | ||
ddb5b488 PZ |
448 | /* |
449 | * returns pointer to new bgp_info upon success | |
450 | */ | |
451 | static struct bgp_info * | |
960035b2 PZ |
452 | leak_update( |
453 | struct bgp *bgp, /* destination bgp instance */ | |
454 | struct bgp_node *bn, | |
455 | struct attr *new_attr, /* already interned */ | |
456 | afi_t afi, | |
457 | safi_t safi, | |
458 | struct bgp_info *source_bi, | |
459 | mpls_label_t *label, | |
e37fb4bf | 460 | uint32_t num_labels, |
960035b2 PZ |
461 | void *parent, |
462 | struct bgp *bgp_orig, | |
463 | struct prefix *nexthop_orig, | |
464 | int nexthop_self_flag, | |
465 | int debug) | |
ddb5b488 PZ |
466 | { |
467 | struct prefix *p = &bn->p; | |
468 | struct bgp_info *bi; | |
f46d45c1 | 469 | struct bgp_info *bi_ultimate; |
ddb5b488 PZ |
470 | struct bgp_info *new; |
471 | char buf_prefix[PREFIX_STRLEN]; | |
ddb5b488 PZ |
472 | |
473 | if (debug) { | |
474 | prefix2str(&bn->p, buf_prefix, sizeof(buf_prefix)); | |
960035b2 PZ |
475 | zlog_debug("%s: entry: leak-to=%s, p=%s, type=%d, sub_type=%d", |
476 | __func__, bgp->name_pretty, buf_prefix, | |
477 | source_bi->type, source_bi->sub_type); | |
ddb5b488 PZ |
478 | } |
479 | ||
f46d45c1 PZ |
480 | /* |
481 | * Routes that are redistributed into BGP from zebra do not get | |
482 | * nexthop tracking. However, if those routes are subsequently | |
483 | * imported to other RIBs within BGP, the leaked routes do not | |
484 | * carry the original BGP_ROUTE_REDISTRIBUTE sub_type. Therefore, | |
485 | * in order to determine if the route we are currently leaking | |
486 | * should have nexthop tracking, we must find the ultimate | |
487 | * parent so we can check its sub_type. | |
488 | * | |
489 | * As of now, source_bi may at most be a second-generation route | |
490 | * (only one hop back to ultimate parent for vrf-vpn-vrf scheme). | |
491 | * Using a loop here supports more complex intra-bgp import-export | |
492 | * schemes that could be implemented in the future. | |
493 | * | |
494 | */ | |
495 | for (bi_ultimate = source_bi; | |
496 | bi_ultimate->extra && bi_ultimate->extra->parent; | |
497 | bi_ultimate = bi_ultimate->extra->parent) | |
498 | ; | |
499 | ||
ddb5b488 PZ |
500 | /* |
501 | * match parent | |
502 | */ | |
503 | for (bi = bn->info; bi; bi = bi->next) { | |
504 | if (bi->extra && bi->extra->parent == parent) | |
505 | break; | |
506 | } | |
507 | ||
508 | if (bi) { | |
e37fb4bf PZ |
509 | bool labelssame = labels_same(bi, label, num_labels); |
510 | ||
ddb5b488 | 511 | if (attrhash_cmp(bi->attr, new_attr) |
e37fb4bf | 512 | && labelssame |
ddb5b488 PZ |
513 | && !CHECK_FLAG(bi->flags, BGP_INFO_REMOVED)) { |
514 | ||
515 | bgp_attr_unintern(&new_attr); | |
516 | if (debug) | |
517 | zlog_debug( | |
518 | "%s: ->%s: %s: Found route, no change", | |
960035b2 | 519 | __func__, bgp->name_pretty, |
ddb5b488 PZ |
520 | buf_prefix); |
521 | return NULL; | |
522 | } | |
523 | ||
524 | /* attr is changed */ | |
525 | bgp_info_set_flag(bn, bi, BGP_INFO_ATTR_CHANGED); | |
526 | ||
527 | /* Rewrite BGP route information. */ | |
528 | if (CHECK_FLAG(bi->flags, BGP_INFO_REMOVED)) | |
529 | bgp_info_restore(bn, bi); | |
530 | else | |
531 | bgp_aggregate_decrement(bgp, p, bi, afi, safi); | |
532 | bgp_attr_unintern(&bi->attr); | |
533 | bi->attr = new_attr; | |
534 | bi->uptime = bgp_clock(); | |
535 | ||
e37fb4bf PZ |
536 | /* |
537 | * rewrite labels | |
538 | */ | |
539 | if (!labelssame) | |
540 | setlabels(bi, label, num_labels); | |
541 | ||
960035b2 PZ |
542 | if (nexthop_self_flag) |
543 | bgp_info_set_flag(bn, bi, BGP_INFO_ANNC_NH_SELF); | |
544 | ||
545 | struct bgp *bgp_nexthop = bgp; | |
546 | int nh_valid; | |
547 | ||
548 | if (bi->extra && bi->extra->bgp_orig) | |
549 | bgp_nexthop = bi->extra->bgp_orig; | |
550 | ||
551 | /* No nexthop tracking for redistributed routes */ | |
f46d45c1 | 552 | if (bi_ultimate->sub_type == BGP_ROUTE_REDISTRIBUTE) |
960035b2 PZ |
553 | nh_valid = 1; |
554 | else | |
555 | /* | |
556 | * TBD do we need to do anything about the | |
557 | * 'connected' parameter? | |
558 | */ | |
559 | nh_valid = bgp_find_or_add_nexthop( | |
560 | bgp, bgp_nexthop, | |
561 | afi, bi, NULL, 0); | |
562 | ||
563 | if (debug) | |
564 | zlog_debug("%s: nexthop is %svalid (in vrf %s)", | |
565 | __func__, (nh_valid ? "" : "not "), | |
566 | bgp_nexthop->name_pretty); | |
567 | ||
568 | if (nh_valid) | |
569 | bgp_info_set_flag(bn, bi, BGP_INFO_VALID); | |
570 | ||
ddb5b488 PZ |
571 | /* Process change. */ |
572 | bgp_aggregate_increment(bgp, p, bi, afi, safi); | |
573 | bgp_process(bgp, bn, afi, safi); | |
574 | bgp_unlock_node(bn); | |
575 | ||
576 | if (debug) | |
577 | zlog_debug("%s: ->%s: %s Found route, changed attr", | |
960035b2 | 578 | __func__, bgp->name_pretty, buf_prefix); |
ddb5b488 PZ |
579 | |
580 | return NULL; | |
581 | } | |
582 | ||
960035b2 PZ |
583 | new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_IMPORTED, 0, |
584 | bgp->peer_self, new_attr, bn); | |
585 | ||
586 | if (nexthop_self_flag) | |
587 | bgp_info_set_flag(bn, new, BGP_INFO_ANNC_NH_SELF); | |
ddb5b488 | 588 | |
4b85140f DS |
589 | bgp_info_extra_get(new); |
590 | ||
e37fb4bf PZ |
591 | if (num_labels) |
592 | setlabels(new, label, num_labels); | |
593 | ||
528cd74f | 594 | new->extra->parent = bgp_info_lock(parent); |
7c82b312 | 595 | bgp_lock_node((struct bgp_node *)((struct bgp_info *)parent)->net); |
ddb5b488 | 596 | if (bgp_orig) |
21d88ef7 | 597 | new->extra->bgp_orig = bgp_lock(bgp_orig); |
ddb5b488 PZ |
598 | if (nexthop_orig) |
599 | new->extra->nexthop_orig = *nexthop_orig; | |
600 | ||
960035b2 PZ |
601 | /* |
602 | * nexthop tracking for unicast routes | |
603 | */ | |
604 | struct bgp *bgp_nexthop = bgp; | |
605 | int nh_valid; | |
606 | ||
4b85140f | 607 | if (new->extra->bgp_orig) |
960035b2 PZ |
608 | bgp_nexthop = new->extra->bgp_orig; |
609 | ||
610 | /* | |
611 | * No nexthop tracking for redistributed routes because | |
612 | * their originating protocols will do the tracking and | |
613 | * withdraw those routes if the nexthops become unreachable | |
614 | */ | |
f46d45c1 | 615 | if (bi_ultimate->sub_type == BGP_ROUTE_REDISTRIBUTE) |
960035b2 PZ |
616 | nh_valid = 1; |
617 | else | |
618 | /* | |
619 | * TBD do we need to do anything about the | |
620 | * 'connected' parameter? | |
621 | */ | |
622 | nh_valid = bgp_find_or_add_nexthop(bgp, bgp_nexthop, | |
623 | afi, new, NULL, 0); | |
624 | ||
625 | if (debug) | |
626 | zlog_debug("%s: nexthop is %svalid (in vrf %s)", | |
627 | __func__, (nh_valid ? "" : "not "), | |
628 | bgp_nexthop->name_pretty); | |
629 | if (nh_valid) | |
630 | bgp_info_set_flag(bn, new, BGP_INFO_VALID); | |
631 | ||
ddb5b488 PZ |
632 | bgp_aggregate_increment(bgp, p, new, afi, safi); |
633 | bgp_info_add(bn, new); | |
634 | ||
635 | bgp_unlock_node(bn); | |
636 | bgp_process(bgp, bn, afi, safi); | |
637 | ||
638 | if (debug) | |
639 | zlog_debug("%s: ->%s: %s: Added new route", __func__, | |
960035b2 | 640 | bgp->name_pretty, buf_prefix); |
ddb5b488 PZ |
641 | |
642 | return new; | |
643 | } | |
644 | ||
645 | /* cf vnc_import_bgp_add_route_mode_nvegroup() and add_vnc_route() */ | |
646 | void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */ | |
647 | struct bgp *bgp_vrf, /* from */ | |
648 | struct bgp_info *info_vrf) /* route */ | |
649 | { | |
650 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
651 | struct prefix *p = &info_vrf->net->p; | |
652 | afi_t afi = family2afi(p->family); | |
653 | struct attr static_attr = {0}; | |
654 | struct attr *new_attr = NULL; | |
655 | safi_t safi = SAFI_MPLS_VPN; | |
656 | mpls_label_t label_val; | |
657 | mpls_label_t label; | |
658 | struct bgp_node *bn; | |
659 | const char *debugmsg; | |
960035b2 PZ |
660 | int nexthop_self_flag = 0; |
661 | ||
662 | if (debug) | |
663 | zlog_debug("%s: from vrf %s", __func__, bgp_vrf->name_pretty); | |
ddb5b488 | 664 | |
c8f57349 DS |
665 | if (debug && info_vrf->attr->ecommunity) { |
666 | char *s = ecommunity_ecom2str(info_vrf->attr->ecommunity, | |
667 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 668 | |
12a844a5 DS |
669 | zlog_debug("%s: %s info_vrf->type=%d, EC{%s}", __func__, |
670 | bgp_vrf->name, info_vrf->type, s); | |
c8f57349 | 671 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
672 | } |
673 | ||
674 | if (!bgp_vpn) | |
675 | return; | |
676 | ||
677 | if (!afi) { | |
678 | if (debug) | |
679 | zlog_debug("%s: can't get afi of prefix", __func__); | |
680 | return; | |
681 | } | |
682 | ||
cc5a6ddd | 683 | /* loop check - should not be an imported route. */ |
684 | if (info_vrf->extra && info_vrf->extra->bgp_orig) | |
ddb5b488 PZ |
685 | return; |
686 | ||
687 | ||
688 | if (!vpn_leak_to_vpn_active(bgp_vrf, afi, &debugmsg)) { | |
689 | if (debug) | |
12a844a5 DS |
690 | zlog_debug("%s: %s skipping: %s", __func__, |
691 | bgp_vrf->name, debugmsg); | |
ddb5b488 PZ |
692 | return; |
693 | } | |
694 | ||
695 | bgp_attr_dup(&static_attr, info_vrf->attr); /* shallow copy */ | |
696 | ||
697 | /* | |
698 | * route map handling | |
699 | */ | |
700 | if (bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN]) { | |
701 | struct bgp_info info; | |
702 | route_map_result_t ret; | |
703 | ||
704 | memset(&info, 0, sizeof(info)); | |
705 | info.peer = bgp_vpn->peer_self; | |
706 | info.attr = &static_attr; | |
707 | ret = route_map_apply( | |
708 | bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN], | |
709 | p, RMAP_BGP, &info); | |
710 | if (RMAP_DENYMATCH == ret) { | |
711 | bgp_attr_flush(&static_attr); /* free any added parts */ | |
712 | if (debug) | |
713 | zlog_debug( | |
714 | "%s: vrf %s route map \"%s\" says DENY, returning", | |
960035b2 | 715 | __func__, bgp_vrf->name_pretty, |
ddb5b488 PZ |
716 | bgp_vrf->vpn_policy[afi] |
717 | .rmap[BGP_VPN_POLICY_DIR_TOVPN] | |
718 | ->name); | |
719 | return; | |
720 | } | |
721 | } | |
722 | ||
c8f57349 DS |
723 | if (debug && static_attr.ecommunity) { |
724 | char *s = ecommunity_ecom2str(static_attr.ecommunity, | |
725 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 726 | |
ddb5b488 PZ |
727 | zlog_debug("%s: post route map static_attr.ecommunity{%s}", |
728 | __func__, s); | |
c8f57349 | 729 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
730 | } |
731 | ||
732 | /* | |
733 | * Add the vpn-policy rt-list | |
734 | */ | |
735 | struct ecommunity *old_ecom; | |
736 | struct ecommunity *new_ecom; | |
737 | ||
738 | old_ecom = static_attr.ecommunity; | |
739 | if (old_ecom) { | |
740 | new_ecom = ecommunity_merge( | |
741 | ecommunity_dup(old_ecom), | |
742 | bgp_vrf->vpn_policy[afi] | |
743 | .rtlist[BGP_VPN_POLICY_DIR_TOVPN]); | |
744 | if (!old_ecom->refcnt) | |
745 | ecommunity_free(&old_ecom); | |
746 | } else { | |
747 | new_ecom = ecommunity_dup( | |
748 | bgp_vrf->vpn_policy[afi] | |
749 | .rtlist[BGP_VPN_POLICY_DIR_TOVPN]); | |
750 | } | |
751 | static_attr.ecommunity = new_ecom; | |
752 | SET_FLAG(static_attr.flag, ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)); | |
753 | ||
c8f57349 DS |
754 | if (debug && static_attr.ecommunity) { |
755 | char *s = ecommunity_ecom2str(static_attr.ecommunity, | |
756 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 757 | |
ddb5b488 PZ |
758 | zlog_debug("%s: post merge static_attr.ecommunity{%s}", |
759 | __func__, s); | |
c8f57349 | 760 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
761 | } |
762 | ||
763 | /* Nexthop */ | |
764 | /* if policy nexthop not set, use 0 */ | |
765 | if (CHECK_FLAG(bgp_vrf->vpn_policy[afi].flags, | |
766 | BGP_VPN_POLICY_TOVPN_NEXTHOP_SET)) { | |
ddb5b488 PZ |
767 | struct prefix *nexthop = |
768 | &bgp_vrf->vpn_policy[afi].tovpn_nexthop; | |
12a844a5 | 769 | |
ddb5b488 PZ |
770 | switch (nexthop->family) { |
771 | case AF_INET: | |
772 | /* prevent mp_nexthop_global_in <- self in bgp_route.c | |
773 | */ | |
774 | static_attr.nexthop.s_addr = nexthop->u.prefix4.s_addr; | |
775 | ||
776 | static_attr.mp_nexthop_global_in = nexthop->u.prefix4; | |
777 | static_attr.mp_nexthop_len = 4; | |
778 | break; | |
779 | ||
780 | case AF_INET6: | |
781 | static_attr.mp_nexthop_global = nexthop->u.prefix6; | |
782 | static_attr.mp_nexthop_len = 16; | |
783 | break; | |
784 | ||
785 | default: | |
786 | assert(0); | |
787 | } | |
788 | } else { | |
12a844a5 DS |
789 | if (!CHECK_FLAG(bgp_vrf->af_flags[afi][SAFI_UNICAST], |
790 | BGP_CONFIG_VRF_TO_VRF_EXPORT)) { | |
791 | if (afi == AFI_IP) { | |
020a3f60 DS |
792 | /* |
793 | * For ipv4, copy to multiprotocol | |
794 | * nexthop field | |
795 | */ | |
796 | static_attr.mp_nexthop_global_in = | |
797 | static_attr.nexthop; | |
12a844a5 | 798 | static_attr.mp_nexthop_len = 4; |
020a3f60 DS |
799 | /* |
800 | * XXX Leave static_attr.nexthop | |
801 | * intact for NHT | |
802 | */ | |
803 | static_attr.flag &= | |
804 | ~ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP); | |
12a844a5 DS |
805 | } |
806 | } else { | |
77e62f2b | 807 | /* Update based on next-hop family to account for |
808 | * RFC 5549 (BGP unnumbered) scenario. Note that | |
809 | * specific action is only needed for the case of | |
810 | * IPv4 nexthops as the attr has been copied | |
811 | * otherwise. | |
812 | */ | |
813 | if (afi == AFI_IP && | |
814 | !BGP_ATTR_NEXTHOP_AFI_IP6(info_vrf->attr)) { | |
12a844a5 DS |
815 | static_attr.mp_nexthop_global_in.s_addr = |
816 | static_attr.nexthop.s_addr; | |
817 | static_attr.mp_nexthop_len = 4; | |
818 | static_attr.flag |= | |
819 | ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP); | |
12a844a5 | 820 | } |
ddb5b488 | 821 | } |
960035b2 | 822 | nexthop_self_flag = 1; |
ddb5b488 PZ |
823 | } |
824 | ||
825 | label_val = bgp_vrf->vpn_policy[afi].tovpn_label; | |
826 | if (label_val == MPLS_LABEL_NONE) { | |
291e32c3 | 827 | encode_label(MPLS_LABEL_IMPLICIT_NULL, &label); |
ddb5b488 PZ |
828 | } else { |
829 | encode_label(label_val, &label); | |
830 | } | |
831 | ||
832 | /* Set originator ID to "me" */ | |
833 | SET_FLAG(static_attr.flag, ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID)); | |
834 | static_attr.originator_id = bgp_vpn->router_id; | |
835 | ||
836 | ||
837 | new_attr = bgp_attr_intern( | |
838 | &static_attr); /* hashed refcounted everything */ | |
839 | bgp_attr_flush(&static_attr); /* free locally-allocated parts */ | |
840 | ||
c3e345b1 DS |
841 | if (debug && new_attr->ecommunity) { |
842 | char *s = ecommunity_ecom2str(new_attr->ecommunity, | |
843 | ECOMMUNITY_FORMAT_ROUTE_MAP, 0); | |
ddb5b488 | 844 | |
ddb5b488 | 845 | zlog_debug("%s: new_attr->ecommunity{%s}", __func__, s); |
c3e345b1 | 846 | XFREE(MTYPE_ECOMMUNITY_STR, s); |
ddb5b488 PZ |
847 | } |
848 | ||
849 | /* Now new_attr is an allocated interned attr */ | |
850 | ||
851 | bn = bgp_afi_node_get(bgp_vpn->rib[afi][safi], afi, safi, p, | |
852 | &(bgp_vrf->vpn_policy[afi].tovpn_rd)); | |
853 | ||
854 | struct bgp_info *new_info; | |
855 | ||
856 | new_info = leak_update(bgp_vpn, bn, new_attr, afi, safi, info_vrf, | |
960035b2 PZ |
857 | &label, 1, info_vrf, bgp_vrf, NULL, |
858 | nexthop_self_flag, debug); | |
ddb5b488 PZ |
859 | |
860 | /* | |
861 | * Routes actually installed in the vpn RIB must also be | |
862 | * offered to all vrfs (because now they originate from | |
863 | * the vpn RIB). | |
864 | * | |
865 | * Acceptance into other vrfs depends on rt-lists. | |
866 | * Originating vrf will not accept the looped back route | |
867 | * because of loop checking. | |
868 | */ | |
869 | if (new_info) | |
321b4bc9 | 870 | vpn_leak_to_vrf_update(bgp_vrf, new_info); |
ddb5b488 PZ |
871 | } |
872 | ||
873 | void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, /* to */ | |
874 | struct bgp *bgp_vrf, /* from */ | |
875 | struct bgp_info *info_vrf) /* route */ | |
876 | { | |
877 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
878 | struct prefix *p = &info_vrf->net->p; | |
879 | afi_t afi = family2afi(p->family); | |
880 | safi_t safi = SAFI_MPLS_VPN; | |
881 | struct bgp_info *bi; | |
882 | struct bgp_node *bn; | |
883 | const char *debugmsg; | |
960035b2 PZ |
884 | char buf_prefix[PREFIX_STRLEN]; |
885 | ||
886 | if (debug) { | |
887 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); | |
888 | zlog_debug( | |
889 | "%s: entry: leak-from=%s, p=%s, type=%d, sub_type=%d", | |
890 | __func__, bgp_vrf->name_pretty, buf_prefix, | |
891 | info_vrf->type, info_vrf->sub_type); | |
892 | } | |
ddb5b488 | 893 | |
ddb5b488 | 894 | if (info_vrf->sub_type != BGP_ROUTE_NORMAL |
82e7e75d | 895 | && info_vrf->sub_type != BGP_ROUTE_STATIC |
896 | && info_vrf->sub_type != BGP_ROUTE_REDISTRIBUTE) { | |
ddb5b488 PZ |
897 | |
898 | if (debug) | |
899 | zlog_debug("%s: wrong sub_type %d", __func__, | |
900 | info_vrf->sub_type); | |
901 | return; | |
902 | } | |
903 | if (!bgp_vpn) | |
904 | return; | |
905 | ||
906 | if (!afi) { | |
907 | if (debug) | |
908 | zlog_debug("%s: can't get afi of prefix", __func__); | |
909 | return; | |
910 | } | |
911 | ||
912 | if (!vpn_leak_to_vpn_active(bgp_vrf, afi, &debugmsg)) { | |
913 | if (debug) | |
914 | zlog_debug("%s: skipping: %s", __func__, debugmsg); | |
915 | return; | |
916 | } | |
917 | ||
918 | if (debug) | |
919 | zlog_debug("%s: withdrawing (info_vrf=%p)", __func__, info_vrf); | |
920 | ||
921 | bn = bgp_afi_node_get(bgp_vpn->rib[afi][safi], afi, safi, p, | |
922 | &(bgp_vrf->vpn_policy[afi].tovpn_rd)); | |
923 | ||
924 | /* | |
925 | * vrf -> vpn | |
926 | * match original bi imported from | |
927 | */ | |
928 | for (bi = (bn ? bn->info : NULL); bi; bi = bi->next) { | |
929 | if (bi->extra && bi->extra->parent == info_vrf) { | |
930 | break; | |
931 | } | |
932 | } | |
933 | ||
934 | if (bi) { | |
935 | /* withdraw from looped vrfs as well */ | |
936 | vpn_leak_to_vrf_withdraw(bgp_vpn, bi); | |
937 | ||
938 | bgp_aggregate_decrement(bgp_vpn, p, bi, afi, safi); | |
939 | bgp_info_delete(bn, bi); | |
940 | bgp_process(bgp_vpn, bn, afi, safi); | |
941 | } | |
942 | bgp_unlock_node(bn); | |
943 | } | |
944 | ||
945 | void vpn_leak_from_vrf_withdraw_all(struct bgp *bgp_vpn, /* to */ | |
946 | struct bgp *bgp_vrf, /* from */ | |
947 | afi_t afi) | |
948 | { | |
949 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
950 | struct bgp_node *prn; | |
951 | safi_t safi = SAFI_MPLS_VPN; | |
952 | ||
953 | /* | |
ddb5b488 PZ |
954 | * Walk vpn table, delete bi with bgp_orig == bgp_vrf |
955 | */ | |
956 | for (prn = bgp_table_top(bgp_vpn->rib[afi][safi]); prn; | |
957 | prn = bgp_route_next(prn)) { | |
958 | ||
959 | struct bgp_table *table; | |
960 | struct bgp_node *bn; | |
961 | struct bgp_info *bi; | |
962 | ||
963 | /* This is the per-RD table of prefixes */ | |
964 | table = prn->info; | |
965 | ||
966 | if (!table) | |
967 | continue; | |
968 | ||
969 | for (bn = bgp_table_top(table); bn; bn = bgp_route_next(bn)) { | |
970 | ||
971 | char buf[PREFIX2STR_BUFFER]; | |
972 | ||
973 | if (debug && bn->info) { | |
974 | zlog_debug( | |
975 | "%s: looking at prefix %s", __func__, | |
976 | prefix2str(&bn->p, buf, sizeof(buf))); | |
977 | } | |
978 | ||
979 | for (bi = bn->info; bi; bi = bi->next) { | |
980 | if (debug) | |
981 | zlog_debug("%s: type %d, sub_type %d", | |
982 | __func__, bi->type, | |
983 | bi->sub_type); | |
984 | if (bi->sub_type != BGP_ROUTE_IMPORTED) | |
985 | continue; | |
986 | if (!bi->extra) | |
987 | continue; | |
988 | if ((struct bgp *)bi->extra->bgp_orig | |
989 | == bgp_vrf) { | |
990 | /* delete route */ | |
991 | if (debug) | |
992 | zlog_debug("%s: deleting it\n", | |
993 | __func__); | |
994 | bgp_aggregate_decrement(bgp_vpn, &bn->p, | |
995 | bi, afi, safi); | |
996 | bgp_info_delete(bn, bi); | |
997 | bgp_process(bgp_vpn, bn, afi, safi); | |
998 | } | |
999 | } | |
1000 | } | |
1001 | } | |
1002 | } | |
1003 | ||
1004 | void vpn_leak_from_vrf_update_all(struct bgp *bgp_vpn, /* to */ | |
1005 | struct bgp *bgp_vrf, /* from */ | |
1006 | afi_t afi) | |
1007 | { | |
1008 | struct bgp_node *bn; | |
1009 | struct bgp_info *bi; | |
1010 | int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF); | |
1011 | ||
1012 | if (debug) | |
1013 | zlog_debug("%s: entry, afi=%d, vrf=%s", __func__, afi, | |
960035b2 | 1014 | bgp_vrf->name_pretty); |
ddb5b488 PZ |
1015 | |
1016 | for (bn = bgp_table_top(bgp_vrf->rib[afi][SAFI_UNICAST]); bn; | |
1017 | bn = bgp_route_next(bn)) { | |
1018 | ||
1019 | if (debug) | |
1020 | zlog_debug("%s: node=%p", __func__, bn); | |
1021 | ||
1022 | for (bi = bn->info; bi; bi = bi->next) { | |
1023 | if (debug) | |
1024 | zlog_debug( | |
1025 | "%s: calling vpn_leak_from_vrf_update", | |
1026 | __func__); | |
1027 | vpn_leak_from_vrf_update(bgp_vpn, bgp_vrf, bi); | |
1028 | } | |
1029 | } | |
1030 | } | |
1031 | ||
1032 | static void vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */ | |
1033 | struct bgp *bgp_vpn, /* from */ | |
1034 | struct bgp_info *info_vpn) /* route */ | |
1035 | { | |
1036 | struct prefix *p = &info_vpn->net->p; | |
1037 | afi_t afi = family2afi(p->family); | |
1038 | ||
ddb5b488 PZ |
1039 | struct attr static_attr = {0}; |
1040 | struct attr *new_attr = NULL; | |
1041 | struct bgp_node *bn; | |
1042 | safi_t safi = SAFI_UNICAST; | |
1043 | const char *debugmsg; | |
1044 | struct prefix nexthop_orig; | |
1045 | mpls_label_t *pLabels = NULL; | |
e37fb4bf | 1046 | uint32_t num_labels = 0; |
960035b2 | 1047 | int nexthop_self_flag = 1; |
513bf8d6 PZ |
1048 | struct bgp_info *bi_ultimate = NULL; |
1049 | int origin_local = 0; | |
d6632478 | 1050 | struct bgp *src_vrf; |
ddb5b488 PZ |
1051 | |
1052 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1053 | ||
b9c7bc5a | 1054 | if (!vpn_leak_from_vpn_active(bgp_vrf, afi, &debugmsg)) { |
ddb5b488 PZ |
1055 | if (debug) |
1056 | zlog_debug("%s: skipping: %s", __func__, debugmsg); | |
1057 | return; | |
1058 | } | |
1059 | ||
1060 | /* Check for intersection of route targets */ | |
1061 | if (!ecom_intersect( | |
1062 | bgp_vrf->vpn_policy[afi].rtlist[BGP_VPN_POLICY_DIR_FROMVPN], | |
1063 | info_vpn->attr->ecommunity)) { | |
1064 | ||
1065 | return; | |
1066 | } | |
1067 | ||
1068 | if (debug) | |
960035b2 PZ |
1069 | zlog_debug("%s: updating to vrf %s", __func__, |
1070 | bgp_vrf->name_pretty); | |
ddb5b488 PZ |
1071 | |
1072 | bgp_attr_dup(&static_attr, info_vpn->attr); /* shallow copy */ | |
1073 | ||
1074 | /* | |
1075 | * Nexthop: stash and clear | |
1076 | * | |
1077 | * Nexthop is valid in context of VPN core, but not in destination vrf. | |
1078 | * Stash it for later label resolution by vrf ingress path and then | |
1079 | * overwrite with 0, i.e., "me", for the sake of vrf advertisement. | |
1080 | */ | |
1081 | uint8_t nhfamily = NEXTHOP_FAMILY(info_vpn->attr->mp_nexthop_len); | |
1082 | ||
1083 | memset(&nexthop_orig, 0, sizeof(nexthop_orig)); | |
1084 | nexthop_orig.family = nhfamily; | |
1085 | ||
1086 | switch (nhfamily) { | |
ddb5b488 PZ |
1087 | case AF_INET: |
1088 | /* save */ | |
1089 | nexthop_orig.u.prefix4 = info_vpn->attr->mp_nexthop_global_in; | |
1090 | nexthop_orig.prefixlen = 32; | |
12a844a5 DS |
1091 | |
1092 | if (CHECK_FLAG(bgp_vrf->af_flags[afi][safi], | |
1093 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
1094 | static_attr.nexthop.s_addr = | |
1095 | nexthop_orig.u.prefix4.s_addr; | |
1096 | ||
1097 | static_attr.mp_nexthop_global_in = | |
1098 | info_vpn->attr->mp_nexthop_global_in; | |
1099 | static_attr.mp_nexthop_len = | |
1100 | info_vpn->attr->mp_nexthop_len; | |
1101 | } | |
ddb5b488 | 1102 | static_attr.flag |= ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP); |
ddb5b488 | 1103 | break; |
ddb5b488 PZ |
1104 | case AF_INET6: |
1105 | /* save */ | |
1106 | nexthop_orig.u.prefix6 = info_vpn->attr->mp_nexthop_global; | |
1107 | nexthop_orig.prefixlen = 128; | |
12a844a5 DS |
1108 | |
1109 | if (CHECK_FLAG(bgp_vrf->af_flags[afi][safi], | |
1110 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
1111 | static_attr.mp_nexthop_global = nexthop_orig.u.prefix6; | |
12a844a5 | 1112 | } |
ddb5b488 PZ |
1113 | break; |
1114 | } | |
1115 | ||
ddb5b488 PZ |
1116 | /* |
1117 | * route map handling | |
ddb5b488 | 1118 | */ |
ddb5b488 PZ |
1119 | if (bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_FROMVPN]) { |
1120 | struct bgp_info info; | |
1121 | route_map_result_t ret; | |
1122 | ||
1123 | memset(&info, 0, sizeof(info)); | |
1124 | info.peer = bgp_vrf->peer_self; | |
1125 | info.attr = &static_attr; | |
1126 | ret = route_map_apply(bgp_vrf->vpn_policy[afi] | |
1127 | .rmap[BGP_VPN_POLICY_DIR_FROMVPN], | |
1128 | p, RMAP_BGP, &info); | |
1129 | if (RMAP_DENYMATCH == ret) { | |
1130 | bgp_attr_flush(&static_attr); /* free any added parts */ | |
1131 | if (debug) | |
1132 | zlog_debug( | |
1133 | "%s: vrf %s vpn-policy route map \"%s\" says DENY, returning", | |
960035b2 | 1134 | __func__, bgp_vrf->name_pretty, |
ddb5b488 PZ |
1135 | bgp_vrf->vpn_policy[afi] |
1136 | .rmap[BGP_VPN_POLICY_DIR_FROMVPN] | |
1137 | ->name); | |
1138 | return; | |
1139 | } | |
960035b2 PZ |
1140 | /* |
1141 | * if route-map changed nexthop, don't nexthop-self on output | |
1142 | */ | |
1143 | if (!CHECK_FLAG(static_attr.rmap_change_flags, | |
1144 | BATTR_RMAP_NEXTHOP_UNCHANGED)) | |
1145 | nexthop_self_flag = 0; | |
ddb5b488 PZ |
1146 | } |
1147 | ||
1148 | new_attr = bgp_attr_intern(&static_attr); | |
1149 | bgp_attr_flush(&static_attr); | |
1150 | ||
1151 | bn = bgp_afi_node_get(bgp_vrf->rib[afi][safi], afi, safi, p, NULL); | |
1152 | ||
1153 | /* | |
1154 | * ensure labels are copied | |
513bf8d6 PZ |
1155 | * |
1156 | * However, there is a special case: if the route originated in | |
1157 | * another local VRF (as opposed to arriving via VPN), then the | |
1158 | * nexthop is reached by hairpinning through this router (me) | |
1159 | * using IP forwarding only (no LSP). Therefore, the route | |
1160 | * imported to the VRF should not have labels attached. Note | |
1161 | * that nexthop tracking is also involved: eliminating the | |
1162 | * labels for these routes enables the non-labeled nexthops | |
1163 | * from the originating VRF to be considered valid for this route. | |
ddb5b488 | 1164 | */ |
12a844a5 DS |
1165 | if (!CHECK_FLAG(bgp_vrf->af_flags[afi][safi], |
1166 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
1167 | /* work back to original route */ | |
1168 | for (bi_ultimate = info_vpn; | |
1169 | bi_ultimate->extra && bi_ultimate->extra->parent; | |
1170 | bi_ultimate = bi_ultimate->extra->parent) | |
1171 | ; | |
513bf8d6 | 1172 | |
12a844a5 DS |
1173 | /* |
1174 | * if original route was unicast, | |
1175 | * then it did not arrive over vpn | |
1176 | */ | |
1177 | if (bi_ultimate->net) { | |
1178 | struct bgp_table *table; | |
513bf8d6 | 1179 | |
12a844a5 DS |
1180 | table = bgp_node_table(bi_ultimate->net); |
1181 | if (table && (table->safi == SAFI_UNICAST)) | |
1182 | origin_local = 1; | |
1183 | } | |
513bf8d6 | 1184 | |
12a844a5 DS |
1185 | /* copy labels */ |
1186 | if (!origin_local && | |
1187 | info_vpn->extra && info_vpn->extra->num_labels) { | |
1188 | num_labels = info_vpn->extra->num_labels; | |
1189 | if (num_labels > BGP_MAX_LABELS) | |
1190 | num_labels = BGP_MAX_LABELS; | |
1191 | pLabels = info_vpn->extra->label; | |
1192 | } | |
ddb5b488 | 1193 | } |
513bf8d6 | 1194 | |
ddb5b488 PZ |
1195 | if (debug) { |
1196 | char buf_prefix[PREFIX_STRLEN]; | |
1197 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); | |
1198 | zlog_debug("%s: pfx %s: num_labels %d", __func__, buf_prefix, | |
1199 | num_labels); | |
1200 | } | |
1201 | ||
44338987 | 1202 | /* |
1d4e8b0d DS |
1203 | * For VRF-2-VRF route-leaking, |
1204 | * the source will be the originating VRF. | |
44338987 | 1205 | */ |
d6632478 PZ |
1206 | if (info_vpn->extra && info_vpn->extra->bgp_orig) |
1207 | src_vrf = info_vpn->extra->bgp_orig; | |
1208 | else | |
1209 | src_vrf = bgp_vpn; | |
1210 | ||
960035b2 PZ |
1211 | leak_update(bgp_vrf, bn, new_attr, afi, safi, info_vpn, |
1212 | pLabels, num_labels, | |
1213 | info_vpn, /* parent */ | |
d6632478 | 1214 | src_vrf, &nexthop_orig, nexthop_self_flag, debug); |
ddb5b488 PZ |
1215 | } |
1216 | ||
1217 | void vpn_leak_to_vrf_update(struct bgp *bgp_vpn, /* from */ | |
1218 | struct bgp_info *info_vpn) /* route */ | |
1219 | { | |
1220 | struct listnode *mnode, *mnnode; | |
1221 | struct bgp *bgp; | |
1222 | ||
1223 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1224 | ||
1225 | if (debug) | |
1226 | zlog_debug("%s: start (info_vpn=%p)", __func__, info_vpn); | |
1227 | ||
1228 | /* Loop over VRFs */ | |
1229 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
1230 | ||
1231 | if (!info_vpn->extra | |
1232 | || info_vpn->extra->bgp_orig != bgp) { /* no loop */ | |
1233 | vpn_leak_to_vrf_update_onevrf(bgp, bgp_vpn, info_vpn); | |
1234 | } | |
1235 | } | |
1236 | } | |
1237 | ||
1238 | void vpn_leak_to_vrf_withdraw(struct bgp *bgp_vpn, /* from */ | |
1239 | struct bgp_info *info_vpn) /* route */ | |
1240 | { | |
1b3510a0 PZ |
1241 | struct prefix *p; |
1242 | afi_t afi; | |
ddb5b488 PZ |
1243 | safi_t safi = SAFI_UNICAST; |
1244 | struct bgp *bgp; | |
1245 | struct listnode *mnode, *mnnode; | |
ddb5b488 PZ |
1246 | struct bgp_node *bn; |
1247 | struct bgp_info *bi; | |
1248 | const char *debugmsg; | |
960035b2 | 1249 | char buf_prefix[PREFIX_STRLEN]; |
ddb5b488 PZ |
1250 | |
1251 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
1252 | ||
960035b2 PZ |
1253 | if (debug) { |
1254 | prefix2str(&info_vpn->net->p, buf_prefix, sizeof(buf_prefix)); | |
1255 | zlog_debug("%s: entry: p=%s, type=%d, sub_type=%d", | |
1256 | __func__, buf_prefix, | |
1257 | info_vpn->type, info_vpn->sub_type); | |
1258 | } | |
1259 | ||
ddb5b488 PZ |
1260 | if (debug) |
1261 | zlog_debug("%s: start (info_vpn=%p)", __func__, info_vpn); | |
1262 | ||
1b3510a0 | 1263 | if (!info_vpn->net) { |
56c2c080 | 1264 | #if ENABLE_BGP_VNC |
1b3510a0 PZ |
1265 | /* BGP_ROUTE_RFP routes do not have info_vpn->net set (yet) */ |
1266 | if (info_vpn->type == ZEBRA_ROUTE_BGP && | |
1267 | info_vpn->sub_type == BGP_ROUTE_RFP) { | |
1268 | ||
1269 | return; | |
1270 | } | |
56c2c080 | 1271 | #endif |
1b3510a0 PZ |
1272 | if (debug) |
1273 | zlog_debug("%s: info_vpn->net unexpectedly NULL, no prefix, bailing", | |
1274 | __func__); | |
1275 | return; | |
1276 | } | |
1277 | ||
1278 | p = &info_vpn->net->p; | |
1279 | afi = family2afi(p->family); | |
ddb5b488 PZ |
1280 | |
1281 | /* Loop over VRFs */ | |
1282 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
b9c7bc5a | 1283 | if (!vpn_leak_from_vpn_active(bgp, afi, &debugmsg)) { |
ddb5b488 PZ |
1284 | if (debug) |
1285 | zlog_debug("%s: skipping: %s", __func__, | |
1286 | debugmsg); | |
1287 | continue; | |
1288 | } | |
1289 | ||
1290 | /* Check for intersection of route targets */ | |
1291 | if (!ecom_intersect(bgp->vpn_policy[afi] | |
1292 | .rtlist[BGP_VPN_POLICY_DIR_FROMVPN], | |
1293 | info_vpn->attr->ecommunity)) { | |
1294 | ||
1295 | continue; | |
1296 | } | |
1297 | ||
1298 | if (debug) | |
1299 | zlog_debug("%s: withdrawing from vrf %s", __func__, | |
960035b2 | 1300 | bgp->name_pretty); |
ddb5b488 PZ |
1301 | |
1302 | bn = bgp_afi_node_get(bgp->rib[afi][safi], afi, safi, p, NULL); | |
1303 | for (bi = (bn ? bn->info : NULL); bi; bi = bi->next) { | |
1304 | if (bi->extra | |
1305 | && (struct bgp_info *)bi->extra->parent | |
1306 | == info_vpn) { | |
1307 | break; | |
1308 | } | |
1309 | } | |
1310 | ||
1311 | if (bi) { | |
1312 | if (debug) | |
1313 | zlog_debug("%s: deleting bi %p", __func__, bi); | |
1314 | bgp_aggregate_decrement(bgp, p, bi, afi, safi); | |
1315 | bgp_info_delete(bn, bi); | |
1316 | bgp_process(bgp, bn, afi, safi); | |
1317 | } | |
1318 | bgp_unlock_node(bn); | |
1319 | } | |
1320 | } | |
1321 | ||
1322 | void vpn_leak_to_vrf_withdraw_all(struct bgp *bgp_vrf, /* to */ | |
1323 | afi_t afi) | |
1324 | { | |
1325 | struct bgp_node *bn; | |
1326 | struct bgp_info *bi; | |
1327 | safi_t safi = SAFI_UNICAST; | |
1328 | int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF); | |
ddb5b488 PZ |
1329 | |
1330 | if (debug) | |
1331 | zlog_debug("%s: entry", __func__); | |
1332 | /* | |
d793761d | 1333 | * Walk vrf table, delete bi with bgp_orig in a different vrf |
ddb5b488 PZ |
1334 | */ |
1335 | for (bn = bgp_table_top(bgp_vrf->rib[afi][safi]); bn; | |
1336 | bn = bgp_route_next(bn)) { | |
1337 | ||
1338 | for (bi = bn->info; bi; bi = bi->next) { | |
d793761d | 1339 | if (bi->extra && bi->extra->bgp_orig != bgp_vrf) { |
ddb5b488 PZ |
1340 | |
1341 | /* delete route */ | |
1342 | bgp_aggregate_decrement(bgp_vrf, &bn->p, bi, | |
1343 | afi, safi); | |
1344 | bgp_info_delete(bn, bi); | |
1345 | bgp_process(bgp_vrf, bn, afi, safi); | |
1346 | } | |
1347 | } | |
1348 | } | |
1349 | } | |
1350 | ||
1351 | void vpn_leak_to_vrf_update_all(struct bgp *bgp_vrf, /* to */ | |
1352 | struct bgp *bgp_vpn, /* from */ | |
1353 | afi_t afi) | |
1354 | { | |
1355 | struct prefix_rd prd; | |
1356 | struct bgp_node *prn; | |
1357 | safi_t safi = SAFI_MPLS_VPN; | |
1358 | ||
73aed584 | 1359 | if (!bgp_vpn) |
1360 | return; | |
1361 | ||
ddb5b488 PZ |
1362 | /* |
1363 | * Walk vpn table | |
1364 | */ | |
1365 | for (prn = bgp_table_top(bgp_vpn->rib[afi][safi]); prn; | |
1366 | prn = bgp_route_next(prn)) { | |
1367 | ||
1368 | struct bgp_table *table; | |
1369 | struct bgp_node *bn; | |
1370 | struct bgp_info *bi; | |
1371 | ||
1372 | memset(&prd, 0, sizeof(prd)); | |
1373 | prd.family = AF_UNSPEC; | |
1374 | prd.prefixlen = 64; | |
1375 | memcpy(prd.val, prn->p.u.val, 8); | |
1376 | ||
1377 | /* This is the per-RD table of prefixes */ | |
1378 | table = prn->info; | |
1379 | ||
1380 | if (!table) | |
1381 | continue; | |
1382 | ||
1383 | for (bn = bgp_table_top(table); bn; bn = bgp_route_next(bn)) { | |
1384 | ||
1385 | for (bi = bn->info; bi; bi = bi->next) { | |
1386 | ||
1387 | if (bi->extra && bi->extra->bgp_orig == bgp_vrf) | |
1388 | continue; | |
1389 | ||
1390 | vpn_leak_to_vrf_update_onevrf(bgp_vrf, bgp_vpn, | |
1391 | bi); | |
1392 | } | |
1393 | } | |
1394 | } | |
1395 | } | |
1396 | ||
d92a55df PZ |
1397 | /* |
1398 | * This function is called for definition/deletion/change to a route-map | |
1399 | */ | |
ddb5b488 PZ |
1400 | static void vpn_policy_routemap_update(struct bgp *bgp, const char *rmap_name) |
1401 | { | |
1402 | int debug = BGP_DEBUG(vpn, VPN_LEAK_RMAP_EVENT); | |
1403 | afi_t afi; | |
1404 | struct route_map *rmap; | |
1405 | ||
1406 | if (bgp->inst_type != BGP_INSTANCE_TYPE_DEFAULT | |
1407 | && bgp->inst_type != BGP_INSTANCE_TYPE_VRF) { | |
1408 | ||
1409 | return; | |
1410 | } | |
1411 | ||
1412 | rmap = route_map_lookup_by_name(rmap_name); /* NULL if deleted */ | |
1413 | ||
1414 | for (afi = 0; afi < AFI_MAX; ++afi) { | |
1415 | ||
d92a55df PZ |
1416 | if (bgp->vpn_policy[afi].rmap_name[BGP_VPN_POLICY_DIR_TOVPN] |
1417 | && !strcmp(rmap_name, | |
ddb5b488 PZ |
1418 | bgp->vpn_policy[afi] |
1419 | .rmap_name[BGP_VPN_POLICY_DIR_TOVPN])) { | |
1420 | ||
1421 | if (debug) | |
1422 | zlog_debug( | |
1423 | "%s: rmap \"%s\" matches vrf-policy tovpn for as %d afi %s", | |
1424 | __func__, rmap_name, bgp->as, | |
1425 | afi2str(afi)); | |
1426 | ||
1427 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, afi, | |
1428 | bgp_get_default(), bgp); | |
1429 | if (debug) | |
1430 | zlog_debug("%s: after vpn_leak_prechange", | |
1431 | __func__); | |
1432 | ||
d92a55df PZ |
1433 | /* in case of definition/deletion */ |
1434 | bgp->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN] = | |
1435 | rmap; | |
ddb5b488 PZ |
1436 | |
1437 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, afi, | |
1438 | bgp_get_default(), bgp); | |
d92a55df | 1439 | |
ddb5b488 PZ |
1440 | if (debug) |
1441 | zlog_debug("%s: after vpn_leak_postchange", | |
1442 | __func__); | |
1443 | } | |
1444 | ||
d92a55df PZ |
1445 | if (bgp->vpn_policy[afi].rmap_name[BGP_VPN_POLICY_DIR_FROMVPN] |
1446 | && !strcmp(rmap_name, | |
1447 | bgp->vpn_policy[afi] | |
1448 | .rmap_name[BGP_VPN_POLICY_DIR_FROMVPN])) { | |
b9c7bc5a PZ |
1449 | |
1450 | if (debug) { | |
1451 | zlog_debug("%s: rmap \"%s\" matches vrf-policy fromvpn for as %d afi %s", | |
ddb5b488 PZ |
1452 | __func__, rmap_name, bgp->as, |
1453 | afi2str(afi)); | |
b9c7bc5a | 1454 | } |
ddb5b488 PZ |
1455 | |
1456 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_FROMVPN, afi, | |
1457 | bgp_get_default(), bgp); | |
1458 | ||
d92a55df PZ |
1459 | /* in case of definition/deletion */ |
1460 | bgp->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_FROMVPN] = | |
1461 | rmap; | |
ddb5b488 PZ |
1462 | |
1463 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_FROMVPN, afi, | |
1464 | bgp_get_default(), bgp); | |
1465 | } | |
1466 | } | |
1467 | } | |
1468 | ||
1469 | void vpn_policy_routemap_event(const char *rmap_name) | |
1470 | { | |
1471 | int debug = BGP_DEBUG(vpn, VPN_LEAK_RMAP_EVENT); | |
1472 | struct listnode *mnode, *mnnode; | |
1473 | struct bgp *bgp; | |
1474 | ||
1475 | if (debug) | |
1476 | zlog_debug("%s: entry", __func__); | |
1477 | ||
1478 | if (bm->bgp == NULL) /* may be called during cleanup */ | |
1479 | return; | |
1480 | ||
1481 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
1482 | vpn_policy_routemap_update(bgp, rmap_name); | |
1483 | } | |
1484 | ||
1d4e8b0d | 1485 | void vrf_import_from_vrf(struct bgp *to_bgp, struct bgp *from_bgp, |
44338987 | 1486 | afi_t afi, safi_t safi) |
1487 | { | |
1488 | const char *export_name; | |
1489 | vpn_policy_direction_t idir, edir; | |
1490 | char *vname; | |
1491 | char buf[1000]; | |
1492 | struct ecommunity *ecom; | |
1493 | bool first_export = false; | |
1494 | ||
a8dadcf6 | 1495 | export_name = to_bgp->name ? to_bgp->name : BGP_DEFAULT_NAME; |
44338987 | 1496 | idir = BGP_VPN_POLICY_DIR_FROMVPN; |
1497 | edir = BGP_VPN_POLICY_DIR_TOVPN; | |
1498 | ||
1d4e8b0d DS |
1499 | /* |
1500 | * Cross-ref both VRFs. Also, note if this is the first time | |
44338987 | 1501 | * any VRF is importing from "import_vrf". |
1502 | */ | |
a8dadcf6 DS |
1503 | vname = (from_bgp->name ? XSTRDUP(MTYPE_TMP, from_bgp->name) |
1504 | : XSTRDUP(MTYPE_TMP, BGP_DEFAULT_NAME)); | |
1505 | ||
1d4e8b0d | 1506 | listnode_add(to_bgp->vpn_policy[afi].import_vrf, vname); |
44338987 | 1507 | |
1d4e8b0d | 1508 | if (!listcount(from_bgp->vpn_policy[afi].export_vrf)) |
44338987 | 1509 | first_export = true; |
1510 | vname = XSTRDUP(MTYPE_TMP, export_name); | |
1d4e8b0d | 1511 | listnode_add(from_bgp->vpn_policy[afi].export_vrf, vname); |
44338987 | 1512 | |
1513 | /* Update import RT for current VRF using export RT of the VRF we're | |
1514 | * importing from. First though, make sure "import_vrf" has that | |
1515 | * set. | |
1516 | */ | |
1517 | if (first_export) { | |
1d4e8b0d DS |
1518 | form_auto_rd(from_bgp->router_id, from_bgp->vrf_rd_id, |
1519 | &from_bgp->vrf_prd_auto); | |
1520 | from_bgp->vpn_policy[afi].tovpn_rd = from_bgp->vrf_prd_auto; | |
1521 | SET_FLAG(from_bgp->vpn_policy[afi].flags, | |
44338987 | 1522 | BGP_VPN_POLICY_TOVPN_RD_SET); |
1d4e8b0d | 1523 | prefix_rd2str(&from_bgp->vpn_policy[afi].tovpn_rd, |
44338987 | 1524 | buf, sizeof(buf)); |
1d4e8b0d | 1525 | from_bgp->vpn_policy[afi].rtlist[edir] = |
44338987 | 1526 | ecommunity_str2com(buf, ECOMMUNITY_ROUTE_TARGET, 0); |
1d4e8b0d | 1527 | SET_FLAG(from_bgp->af_flags[afi][safi], |
44338987 | 1528 | BGP_CONFIG_VRF_TO_VRF_EXPORT); |
13b7e7f0 DS |
1529 | from_bgp->vpn_policy[afi].tovpn_label = |
1530 | BGP_PREVENT_VRF_2_VRF_LEAK; | |
44338987 | 1531 | } |
1d4e8b0d DS |
1532 | ecom = from_bgp->vpn_policy[afi].rtlist[edir]; |
1533 | if (to_bgp->vpn_policy[afi].rtlist[idir]) | |
1534 | to_bgp->vpn_policy[afi].rtlist[idir] = | |
1535 | ecommunity_merge(to_bgp->vpn_policy[afi] | |
44338987 | 1536 | .rtlist[idir], ecom); |
1537 | else | |
1d4e8b0d DS |
1538 | to_bgp->vpn_policy[afi].rtlist[idir] = ecommunity_dup(ecom); |
1539 | SET_FLAG(to_bgp->af_flags[afi][safi], BGP_CONFIG_VRF_TO_VRF_IMPORT); | |
44338987 | 1540 | |
1541 | /* Does "import_vrf" first need to export its routes or that | |
1542 | * is already done and we just need to import those routes | |
1543 | * from the global table? | |
1544 | */ | |
1545 | if (first_export) | |
1d4e8b0d | 1546 | vpn_leak_postchange(edir, afi, bgp_get_default(), from_bgp); |
44338987 | 1547 | else |
1d4e8b0d | 1548 | vpn_leak_postchange(idir, afi, bgp_get_default(), to_bgp); |
44338987 | 1549 | } |
1550 | ||
1d4e8b0d | 1551 | void vrf_unimport_from_vrf(struct bgp *to_bgp, struct bgp *from_bgp, |
44338987 | 1552 | afi_t afi, safi_t safi) |
1553 | { | |
a8dadcf6 | 1554 | const char *export_name, *tmp_name; |
44338987 | 1555 | vpn_policy_direction_t idir, edir; |
1556 | char *vname; | |
1557 | struct ecommunity *ecom; | |
1558 | struct listnode *node; | |
1559 | ||
a8dadcf6 DS |
1560 | export_name = to_bgp->name ? to_bgp->name : BGP_DEFAULT_NAME; |
1561 | tmp_name = from_bgp->name ? from_bgp->name : BGP_DEFAULT_NAME; | |
44338987 | 1562 | idir = BGP_VPN_POLICY_DIR_FROMVPN; |
1563 | edir = BGP_VPN_POLICY_DIR_TOVPN; | |
1564 | ||
1565 | /* Were we importing from "import_vrf"? */ | |
1d4e8b0d DS |
1566 | for (ALL_LIST_ELEMENTS_RO(to_bgp->vpn_policy[afi].import_vrf, node, |
1567 | vname)) { | |
a8dadcf6 | 1568 | if (strcmp(vname, tmp_name) == 0) |
020a3f60 | 1569 | break; |
44338987 | 1570 | } |
1d4e8b0d DS |
1571 | |
1572 | /* | |
1573 | * We do not check in the cli if the passed in bgp | |
1574 | * instance is actually imported into us before | |
1575 | * we call this function. As such if we do not | |
1576 | * find this in the import_vrf list than | |
1577 | * we just need to return safely. | |
1578 | */ | |
44338987 | 1579 | if (!vname) |
1580 | return; | |
1581 | ||
1582 | /* Remove "import_vrf" from our import list. */ | |
1d4e8b0d | 1583 | listnode_delete(to_bgp->vpn_policy[afi].import_vrf, vname); |
44338987 | 1584 | XFREE(MTYPE_TMP, vname); |
1585 | ||
1586 | /* Remove routes imported from "import_vrf". */ | |
1587 | /* TODO: In the current logic, we have to first remove all | |
1588 | * imported routes and then (if needed) import back routes | |
1589 | */ | |
1d4e8b0d | 1590 | vpn_leak_prechange(idir, afi, bgp_get_default(), to_bgp); |
44338987 | 1591 | |
1d4e8b0d DS |
1592 | if (to_bgp->vpn_policy[afi].import_vrf->count == 0) { |
1593 | UNSET_FLAG(to_bgp->af_flags[afi][safi], | |
44338987 | 1594 | BGP_CONFIG_VRF_TO_VRF_IMPORT); |
1d4e8b0d | 1595 | ecommunity_free(&to_bgp->vpn_policy[afi].rtlist[idir]); |
44338987 | 1596 | } else { |
1d4e8b0d DS |
1597 | ecom = from_bgp->vpn_policy[afi].rtlist[edir]; |
1598 | ecommunity_del_val(to_bgp->vpn_policy[afi].rtlist[idir], | |
44338987 | 1599 | (struct ecommunity_val *)ecom->val); |
1d4e8b0d | 1600 | vpn_leak_postchange(idir, afi, bgp_get_default(), to_bgp); |
44338987 | 1601 | } |
1602 | ||
89d59347 DS |
1603 | /* |
1604 | * What? | |
1605 | * So SA is assuming that since the ALL_LIST_ELEMENTS_RO | |
1606 | * below is checking for NULL that export_vrf can be | |
1607 | * NULL, consequently it is complaining( like a cabbage ) | |
1608 | * that we could dereference and crash in the listcount(..) | |
1609 | * check below. | |
1610 | * So make it happy, under protest, with liberty and justice | |
1611 | * for all. | |
1612 | */ | |
1d4e8b0d | 1613 | assert(from_bgp->vpn_policy[afi].export_vrf); |
89d59347 | 1614 | |
44338987 | 1615 | /* Remove us from "import_vrf's" export list. If no other VRF |
1616 | * is importing from "import_vrf", cleanup appropriately. | |
1617 | */ | |
1d4e8b0d | 1618 | for (ALL_LIST_ELEMENTS_RO(from_bgp->vpn_policy[afi].export_vrf, |
44338987 | 1619 | node, vname)) { |
1620 | if (strcmp(vname, export_name) == 0) | |
1621 | break; | |
1622 | } | |
1623 | ||
1d4e8b0d DS |
1624 | /* |
1625 | * If we have gotten to this point then the vname must | |
1626 | * exist. If not, we are in a world of trouble and | |
1627 | * have slag sitting around. | |
1628 | * | |
1629 | * import_vrf and export_vrf must match in having | |
1630 | * the in/out names as appropriate. | |
1631 | */ | |
1632 | assert(vname); | |
1633 | ||
1634 | listnode_delete(from_bgp->vpn_policy[afi].export_vrf, vname); | |
44338987 | 1635 | XFREE(MTYPE_TMP, vname); |
1636 | ||
1d4e8b0d DS |
1637 | if (!listcount(from_bgp->vpn_policy[afi].export_vrf)) { |
1638 | vpn_leak_prechange(edir, afi, bgp_get_default(), from_bgp); | |
1639 | ecommunity_free(&from_bgp->vpn_policy[afi].rtlist[edir]); | |
1640 | UNSET_FLAG(from_bgp->af_flags[afi][safi], | |
44338987 | 1641 | BGP_CONFIG_VRF_TO_VRF_EXPORT); |
1d4e8b0d | 1642 | memset(&from_bgp->vpn_policy[afi].tovpn_rd, 0, |
44338987 | 1643 | sizeof(struct prefix_rd)); |
1d4e8b0d | 1644 | UNSET_FLAG(from_bgp->vpn_policy[afi].flags, |
44338987 | 1645 | BGP_VPN_POLICY_TOVPN_RD_SET); |
13b7e7f0 DS |
1646 | from_bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
1647 | ||
44338987 | 1648 | } |
1649 | } | |
1650 | ||
718e3744 | 1651 | /* For testing purpose, static route of MPLS-VPN. */ |
1652 | DEFUN (vpnv4_network, | |
1653 | vpnv4_network_cmd, | |
d114b977 | 1654 | "network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
718e3744 | 1655 | "Specify a network to announce via BGP\n" |
0c7b1b01 | 1656 | "IPv4 prefix\n" |
718e3744 | 1657 | "Specify Route Distinguisher\n" |
1658 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1659 | "VPN NLRI label (tag)\n" |
1660 | "VPN NLRI label (tag)\n" | |
1661 | "Label value\n") | |
718e3744 | 1662 | { |
d62a17ae | 1663 | int idx_ipv4_prefixlen = 1; |
1664 | int idx_ext_community = 3; | |
1665 | int idx_label = 5; | |
1666 | return bgp_static_set_safi( | |
1667 | AFI_IP, SAFI_MPLS_VPN, vty, argv[idx_ipv4_prefixlen]->arg, | |
1668 | argv[idx_ext_community]->arg, argv[idx_label]->arg, NULL, 0, | |
1669 | NULL, NULL, NULL, NULL); | |
137446f9 LB |
1670 | } |
1671 | ||
1672 | DEFUN (vpnv4_network_route_map, | |
1673 | vpnv4_network_route_map_cmd, | |
d114b977 | 1674 | "network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575) route-map WORD", |
137446f9 | 1675 | "Specify a network to announce via BGP\n" |
0c7b1b01 | 1676 | "IPv4 prefix\n" |
137446f9 LB |
1677 | "Specify Route Distinguisher\n" |
1678 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1679 | "VPN NLRI label (tag)\n" |
1680 | "VPN NLRI label (tag)\n" | |
1681 | "Label value\n" | |
137446f9 LB |
1682 | "route map\n" |
1683 | "route map name\n") | |
1684 | { | |
d62a17ae | 1685 | int idx_ipv4_prefixlen = 1; |
1686 | int idx_ext_community = 3; | |
1687 | int idx_label = 5; | |
1688 | int idx_word_2 = 7; | |
1689 | return bgp_static_set_safi( | |
1690 | AFI_IP, SAFI_MPLS_VPN, vty, argv[idx_ipv4_prefixlen]->arg, | |
1691 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1692 | argv[idx_word_2]->arg, 0, NULL, NULL, NULL, NULL); | |
718e3744 | 1693 | } |
1694 | ||
1695 | /* For testing purpose, static route of MPLS-VPN. */ | |
1696 | DEFUN (no_vpnv4_network, | |
1697 | no_vpnv4_network_cmd, | |
d114b977 | 1698 | "no network A.B.C.D/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
718e3744 | 1699 | NO_STR |
1700 | "Specify a network to announce via BGP\n" | |
0c7b1b01 | 1701 | "IPv4 prefix\n" |
718e3744 | 1702 | "Specify Route Distinguisher\n" |
1703 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1704 | "VPN NLRI label (tag)\n" |
1705 | "VPN NLRI label (tag)\n" | |
1706 | "Label value\n") | |
718e3744 | 1707 | { |
d62a17ae | 1708 | int idx_ipv4_prefixlen = 2; |
1709 | int idx_ext_community = 4; | |
1710 | int idx_label = 6; | |
1711 | return bgp_static_unset_safi(AFI_IP, SAFI_MPLS_VPN, vty, | |
1712 | argv[idx_ipv4_prefixlen]->arg, | |
1713 | argv[idx_ext_community]->arg, | |
1714 | argv[idx_label]->arg, 0, NULL, NULL, NULL); | |
718e3744 | 1715 | } |
1716 | ||
c286be96 LX |
1717 | DEFUN (vpnv6_network, |
1718 | vpnv6_network_cmd, | |
d114b977 | 1719 | "network X:X::X:X/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575) [route-map WORD]", |
c286be96 LX |
1720 | "Specify a network to announce via BGP\n" |
1721 | "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n" | |
1722 | "Specify Route Distinguisher\n" | |
1723 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1724 | "VPN NLRI label (tag)\n" |
1725 | "VPN NLRI label (tag)\n" | |
1726 | "Label value\n" | |
11daee81 DS |
1727 | "route map\n" |
1728 | "route map name\n") | |
c286be96 | 1729 | { |
d62a17ae | 1730 | int idx_ipv6_prefix = 1; |
1731 | int idx_ext_community = 3; | |
1732 | int idx_label = 5; | |
1733 | int idx_word_2 = 7; | |
1734 | if (argc == 8) | |
1735 | return bgp_static_set_safi( | |
1736 | AFI_IP6, SAFI_MPLS_VPN, vty, argv[idx_ipv6_prefix]->arg, | |
1737 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1738 | argv[idx_word_2]->arg, 0, NULL, NULL, NULL, NULL); | |
1739 | else | |
1740 | return bgp_static_set_safi( | |
1741 | AFI_IP6, SAFI_MPLS_VPN, vty, argv[idx_ipv6_prefix]->arg, | |
1742 | argv[idx_ext_community]->arg, argv[idx_label]->arg, | |
1743 | NULL, 0, NULL, NULL, NULL, NULL); | |
c286be96 LX |
1744 | } |
1745 | ||
1746 | /* For testing purpose, static route of MPLS-VPN. */ | |
1747 | DEFUN (no_vpnv6_network, | |
1748 | no_vpnv6_network_cmd, | |
d114b977 | 1749 | "no network X:X::X:X/M rd ASN:NN_OR_IP-ADDRESS:NN <tag|label> (0-1048575)", |
c286be96 LX |
1750 | NO_STR |
1751 | "Specify a network to announce via BGP\n" | |
1752 | "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n" | |
1753 | "Specify Route Distinguisher\n" | |
1754 | "VPN Route Distinguisher\n" | |
fb1d2a2d LB |
1755 | "VPN NLRI label (tag)\n" |
1756 | "VPN NLRI label (tag)\n" | |
1757 | "Label value\n") | |
c286be96 | 1758 | { |
d62a17ae | 1759 | int idx_ipv6_prefix = 2; |
1760 | int idx_ext_community = 4; | |
1761 | int idx_label = 6; | |
1762 | return bgp_static_unset_safi(AFI_IP6, SAFI_MPLS_VPN, vty, | |
1763 | argv[idx_ipv6_prefix]->arg, | |
1764 | argv[idx_ext_community]->arg, | |
1765 | argv[idx_label]->arg, 0, NULL, NULL, NULL); | |
c286be96 LX |
1766 | } |
1767 | ||
d62a17ae | 1768 | int bgp_show_mpls_vpn(struct vty *vty, afi_t afi, struct prefix_rd *prd, |
1769 | enum bgp_show_type type, void *output_arg, int tags, | |
d7c0a89a | 1770 | uint8_t use_json) |
718e3744 | 1771 | { |
d62a17ae | 1772 | struct bgp *bgp; |
1773 | struct bgp_table *table; | |
d62a17ae | 1774 | |
1775 | bgp = bgp_get_default(); | |
1776 | if (bgp == NULL) { | |
1777 | if (!use_json) | |
1778 | vty_out(vty, "No BGP process is configured\n"); | |
16307668 RW |
1779 | else |
1780 | vty_out(vty, "{}\n"); | |
d62a17ae | 1781 | return CMD_WARNING; |
1782 | } | |
1ae44dfc | 1783 | table = bgp->rib[afi][SAFI_MPLS_VPN]; |
a4d82a8a PZ |
1784 | return bgp_show_table_rd(vty, bgp, SAFI_MPLS_VPN, table, prd, type, |
1785 | output_arg, use_json); | |
718e3744 | 1786 | } |
1787 | ||
4f280b15 LB |
1788 | DEFUN (show_bgp_ip_vpn_all_rd, |
1789 | show_bgp_ip_vpn_all_rd_cmd, | |
d114b977 | 1790 | "show bgp "BGP_AFI_CMD_STR" vpn all [rd ASN:NN_OR_IP-ADDRESS:NN] [json]", |
e3e29b32 LB |
1791 | SHOW_STR |
1792 | BGP_STR | |
05e588f4 | 1793 | BGP_VPNVX_HELP_STR |
e3e29b32 | 1794 | "Display VPN NLRI specific information\n" |
af8528fa | 1795 | "Display VPN NLRI specific information\n" |
e3e29b32 LB |
1796 | "Display information for a route distinguisher\n" |
1797 | "VPN Route Distinguisher\n" | |
1798 | JSON_STR) | |
1799 | { | |
d62a17ae | 1800 | int ret; |
1801 | struct prefix_rd prd; | |
1802 | afi_t afi; | |
1803 | int idx = 0; | |
1804 | ||
1805 | if (argv_find_and_parse_afi(argv, argc, &idx, &afi)) { | |
3d7c4cd7 | 1806 | if (argv_find(argv, argc, "rd", &idx)) { |
a4d82a8a | 1807 | ret = str2prefix_rd(argv[idx + 1]->arg, &prd); |
d62a17ae | 1808 | if (!ret) { |
1809 | vty_out(vty, | |
1810 | "%% Malformed Route Distinguisher\n"); | |
1811 | return CMD_WARNING; | |
1812 | } | |
1813 | return bgp_show_mpls_vpn(vty, afi, &prd, | |
1814 | bgp_show_type_normal, NULL, 0, | |
1815 | use_json(argc, argv)); | |
1816 | } else { | |
1817 | return bgp_show_mpls_vpn(vty, afi, NULL, | |
1818 | bgp_show_type_normal, NULL, 0, | |
1819 | use_json(argc, argv)); | |
1820 | } | |
1821 | } | |
1822 | return CMD_SUCCESS; | |
718e3744 | 1823 | } |
1824 | ||
af8528fa LB |
1825 | ALIAS(show_bgp_ip_vpn_all_rd, |
1826 | show_bgp_ip_vpn_rd_cmd, | |
1827 | "show bgp "BGP_AFI_CMD_STR" vpn rd ASN:NN_OR_IP-ADDRESS:NN [json]", | |
1828 | SHOW_STR | |
1829 | BGP_STR | |
1830 | BGP_VPNVX_HELP_STR | |
1831 | "Display VPN NLRI specific information\n" | |
1832 | "Display information for a route distinguisher\n" | |
1833 | "VPN Route Distinguisher\n" | |
1834 | JSON_STR) | |
1835 | ||
1836 | #ifdef KEEP_OLD_VPN_COMMANDS | |
3f227172 PG |
1837 | DEFUN (show_ip_bgp_vpn_rd, |
1838 | show_ip_bgp_vpn_rd_cmd, | |
af8528fa | 1839 | "show ip bgp "BGP_AFI_CMD_STR" vpn rd ASN:NN_OR_IP-ADDRESS:NN", |
718e3744 | 1840 | SHOW_STR |
1841 | IP_STR | |
1842 | BGP_STR | |
4f280b15 | 1843 | BGP_AFI_HELP_STR |
3517059b | 1844 | "Address Family modifier\n" |
718e3744 | 1845 | "Display information for a route distinguisher\n" |
1846 | "VPN Route Distinguisher\n") | |
1847 | { | |
d62a17ae | 1848 | int idx_ext_community = argc - 1; |
1849 | int ret; | |
1850 | struct prefix_rd prd; | |
1851 | afi_t afi; | |
1852 | int idx = 0; | |
1853 | ||
1854 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1855 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1856 | if (!ret) { | |
1857 | vty_out(vty, "%% Malformed Route Distinguisher\n"); | |
1858 | return CMD_WARNING; | |
1859 | } | |
1860 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_normal, | |
1861 | NULL, 0, 0); | |
1862 | } | |
1863 | return CMD_SUCCESS; | |
1864 | } | |
718e3744 | 1865 | |
4f280b15 LB |
1866 | DEFUN (show_ip_bgp_vpn_all, |
1867 | show_ip_bgp_vpn_all_cmd, | |
1868 | "show [ip] bgp <vpnv4|vpnv6>", | |
1869 | SHOW_STR | |
1870 | IP_STR | |
1871 | BGP_STR | |
1872 | BGP_VPNVX_HELP_STR) | |
1873 | { | |
d62a17ae | 1874 | afi_t afi; |
1875 | int idx = 0; | |
4f280b15 | 1876 | |
d62a17ae | 1877 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) |
1878 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_normal, | |
1879 | NULL, 0, 0); | |
1880 | return CMD_SUCCESS; | |
4f280b15 LB |
1881 | } |
1882 | ||
3f227172 PG |
1883 | DEFUN (show_ip_bgp_vpn_all_tags, |
1884 | show_ip_bgp_vpn_all_tags_cmd, | |
1885 | "show [ip] bgp <vpnv4|vpnv6> all tags", | |
718e3744 | 1886 | SHOW_STR |
1887 | IP_STR | |
1888 | BGP_STR | |
3f227172 PG |
1889 | BGP_VPNVX_HELP_STR |
1890 | "Display information about all VPNv4/VPNV6 NLRIs\n" | |
718e3744 | 1891 | "Display BGP tags for prefixes\n") |
1892 | { | |
d62a17ae | 1893 | afi_t afi; |
1894 | int idx = 0; | |
3f227172 | 1895 | |
d62a17ae | 1896 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) |
1897 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_normal, | |
1898 | NULL, 1, 0); | |
1899 | return CMD_SUCCESS; | |
718e3744 | 1900 | } |
1901 | ||
3f227172 PG |
1902 | DEFUN (show_ip_bgp_vpn_rd_tags, |
1903 | show_ip_bgp_vpn_rd_tags_cmd, | |
d114b977 | 1904 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN tags", |
718e3744 | 1905 | SHOW_STR |
1906 | IP_STR | |
1907 | BGP_STR | |
3f227172 | 1908 | BGP_VPNVX_HELP_STR |
718e3744 | 1909 | "Display information for a route distinguisher\n" |
1910 | "VPN Route Distinguisher\n" | |
1911 | "Display BGP tags for prefixes\n") | |
1912 | { | |
d62a17ae | 1913 | int idx_ext_community = 5; |
1914 | int ret; | |
1915 | struct prefix_rd prd; | |
1916 | afi_t afi; | |
1917 | int idx = 0; | |
1918 | ||
1919 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1920 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
1921 | if (!ret) { | |
1922 | vty_out(vty, "%% Malformed Route Distinguisher\n"); | |
1923 | return CMD_WARNING; | |
1924 | } | |
1925 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_normal, | |
1926 | NULL, 1, 0); | |
1927 | } | |
1928 | return CMD_SUCCESS; | |
718e3744 | 1929 | } |
1930 | ||
3f227172 PG |
1931 | DEFUN (show_ip_bgp_vpn_all_neighbor_routes, |
1932 | show_ip_bgp_vpn_all_neighbor_routes_cmd, | |
1933 | "show [ip] bgp <vpnv4|vpnv6> all neighbors A.B.C.D routes [json]", | |
718e3744 | 1934 | SHOW_STR |
1935 | IP_STR | |
1936 | BGP_STR | |
3f227172 PG |
1937 | BGP_VPNVX_HELP_STR |
1938 | "Display information about all VPNv4/VPNv6 NLRIs\n" | |
718e3744 | 1939 | "Detailed information on TCP and BGP neighbor connections\n" |
1940 | "Neighbor to display information about\n" | |
856ca177 | 1941 | "Display routes learned from neighbor\n" |
9973d184 | 1942 | JSON_STR) |
718e3744 | 1943 | { |
d62a17ae | 1944 | int idx_ipv4 = 6; |
1945 | union sockunion su; | |
1946 | struct peer *peer; | |
1947 | int ret; | |
d7c0a89a | 1948 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 1949 | afi_t afi; |
1950 | int idx = 0; | |
1951 | ||
1952 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
1953 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
1954 | if (ret < 0) { | |
1955 | if (uj) { | |
1956 | json_object *json_no = NULL; | |
1957 | json_no = json_object_new_object(); | |
1958 | json_object_string_add(json_no, "warning", | |
1959 | "Malformed address"); | |
1960 | vty_out(vty, "%s\n", | |
1961 | json_object_to_json_string(json_no)); | |
1962 | json_object_free(json_no); | |
1963 | } else | |
1964 | vty_out(vty, "Malformed address: %s\n", | |
1965 | argv[idx_ipv4]->arg); | |
1966 | return CMD_WARNING; | |
1967 | } | |
1968 | ||
1969 | peer = peer_lookup(NULL, &su); | |
1970 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
1971 | if (uj) { | |
1972 | json_object *json_no = NULL; | |
1973 | json_no = json_object_new_object(); | |
1974 | json_object_string_add( | |
1975 | json_no, "warning", | |
1976 | "No such neighbor or address family"); | |
1977 | vty_out(vty, "%s\n", | |
1978 | json_object_to_json_string(json_no)); | |
1979 | json_object_free(json_no); | |
1980 | } else | |
1981 | vty_out(vty, | |
1982 | "%% No such neighbor or address family\n"); | |
1983 | return CMD_WARNING; | |
1984 | } | |
1985 | ||
1986 | return bgp_show_mpls_vpn(vty, afi, NULL, bgp_show_type_neighbor, | |
1987 | &su, 0, uj); | |
1988 | } | |
1989 | return CMD_SUCCESS; | |
718e3744 | 1990 | } |
1991 | ||
3f227172 PG |
1992 | DEFUN (show_ip_bgp_vpn_rd_neighbor_routes, |
1993 | show_ip_bgp_vpn_rd_neighbor_routes_cmd, | |
d114b977 | 1994 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN neighbors A.B.C.D routes [json]", |
718e3744 | 1995 | SHOW_STR |
1996 | IP_STR | |
1997 | BGP_STR | |
3f227172 | 1998 | BGP_VPNVX_HELP_STR |
718e3744 | 1999 | "Display information for a route distinguisher\n" |
2000 | "VPN Route Distinguisher\n" | |
2001 | "Detailed information on TCP and BGP neighbor connections\n" | |
2002 | "Neighbor to display information about\n" | |
856ca177 | 2003 | "Display routes learned from neighbor\n" |
9973d184 | 2004 | JSON_STR) |
718e3744 | 2005 | { |
d62a17ae | 2006 | int idx_ext_community = 5; |
2007 | int idx_ipv4 = 7; | |
2008 | int ret; | |
2009 | union sockunion su; | |
2010 | struct peer *peer; | |
2011 | struct prefix_rd prd; | |
d7c0a89a | 2012 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 2013 | afi_t afi; |
2014 | int idx = 0; | |
2015 | ||
2016 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
2017 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
2018 | if (!ret) { | |
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 | "Malformed Route Distinguisher"); | |
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 | "%% Malformed Route Distinguisher\n"); | |
2031 | return CMD_WARNING; | |
2032 | } | |
2033 | ||
2034 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
2035 | if (ret < 0) { | |
2036 | if (uj) { | |
2037 | json_object *json_no = NULL; | |
2038 | json_no = json_object_new_object(); | |
2039 | json_object_string_add(json_no, "warning", | |
2040 | "Malformed address"); | |
2041 | vty_out(vty, "%s\n", | |
2042 | json_object_to_json_string(json_no)); | |
2043 | json_object_free(json_no); | |
2044 | } else | |
2045 | vty_out(vty, "Malformed address: %s\n", | |
2046 | argv[idx_ext_community]->arg); | |
2047 | return CMD_WARNING; | |
2048 | } | |
2049 | ||
2050 | peer = peer_lookup(NULL, &su); | |
2051 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
2052 | if (uj) { | |
2053 | json_object *json_no = NULL; | |
2054 | json_no = json_object_new_object(); | |
2055 | json_object_string_add( | |
2056 | json_no, "warning", | |
2057 | "No such neighbor or address family"); | |
2058 | vty_out(vty, "%s\n", | |
2059 | json_object_to_json_string(json_no)); | |
2060 | json_object_free(json_no); | |
2061 | } else | |
2062 | vty_out(vty, | |
2063 | "%% No such neighbor or address family\n"); | |
2064 | return CMD_WARNING; | |
2065 | } | |
2066 | ||
2067 | return bgp_show_mpls_vpn(vty, afi, &prd, bgp_show_type_neighbor, | |
2068 | &su, 0, uj); | |
2069 | } | |
2070 | return CMD_SUCCESS; | |
718e3744 | 2071 | } |
2072 | ||
3f227172 PG |
2073 | DEFUN (show_ip_bgp_vpn_all_neighbor_advertised_routes, |
2074 | show_ip_bgp_vpn_all_neighbor_advertised_routes_cmd, | |
2075 | "show [ip] bgp <vpnv4|vpnv6> all neighbors A.B.C.D advertised-routes [json]", | |
718e3744 | 2076 | SHOW_STR |
2077 | IP_STR | |
2078 | BGP_STR | |
3f227172 PG |
2079 | BGP_VPNVX_HELP_STR |
2080 | "Display information about all VPNv4/VPNv6 NLRIs\n" | |
718e3744 | 2081 | "Detailed information on TCP and BGP neighbor connections\n" |
2082 | "Neighbor to display information about\n" | |
856ca177 | 2083 | "Display the routes advertised to a BGP neighbor\n" |
9973d184 | 2084 | JSON_STR) |
718e3744 | 2085 | { |
d62a17ae | 2086 | int idx_ipv4 = 6; |
2087 | int ret; | |
2088 | struct peer *peer; | |
2089 | union sockunion su; | |
d7c0a89a | 2090 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 2091 | afi_t afi; |
2092 | int idx = 0; | |
2093 | ||
2094 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
2095 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
2096 | if (ret < 0) { | |
2097 | if (uj) { | |
2098 | json_object *json_no = NULL; | |
2099 | json_no = json_object_new_object(); | |
2100 | json_object_string_add(json_no, "warning", | |
2101 | "Malformed address"); | |
2102 | vty_out(vty, "%s\n", | |
2103 | json_object_to_json_string(json_no)); | |
2104 | json_object_free(json_no); | |
2105 | } else | |
2106 | vty_out(vty, "Malformed address: %s\n", | |
2107 | argv[idx_ipv4]->arg); | |
2108 | return CMD_WARNING; | |
2109 | } | |
2110 | peer = peer_lookup(NULL, &su); | |
2111 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
2112 | if (uj) { | |
2113 | json_object *json_no = NULL; | |
2114 | json_no = json_object_new_object(); | |
2115 | json_object_string_add( | |
2116 | json_no, "warning", | |
2117 | "No such neighbor or address family"); | |
2118 | vty_out(vty, "%s\n", | |
2119 | json_object_to_json_string(json_no)); | |
2120 | json_object_free(json_no); | |
2121 | } else | |
2122 | vty_out(vty, | |
2123 | "%% No such neighbor or address family\n"); | |
2124 | return CMD_WARNING; | |
2125 | } | |
2126 | return show_adj_route_vpn(vty, peer, NULL, AFI_IP, | |
2127 | SAFI_MPLS_VPN, uj); | |
2128 | } | |
2129 | return CMD_SUCCESS; | |
718e3744 | 2130 | } |
2131 | ||
3f227172 PG |
2132 | DEFUN (show_ip_bgp_vpn_rd_neighbor_advertised_routes, |
2133 | show_ip_bgp_vpn_rd_neighbor_advertised_routes_cmd, | |
d114b977 | 2134 | "show [ip] bgp <vpnv4|vpnv6> rd ASN:NN_OR_IP-ADDRESS:NN neighbors A.B.C.D advertised-routes [json]", |
718e3744 | 2135 | SHOW_STR |
2136 | IP_STR | |
2137 | BGP_STR | |
3f227172 | 2138 | BGP_VPNVX_HELP_STR |
718e3744 | 2139 | "Display information for a route distinguisher\n" |
2140 | "VPN Route Distinguisher\n" | |
2141 | "Detailed information on TCP and BGP neighbor connections\n" | |
2142 | "Neighbor to display information about\n" | |
856ca177 | 2143 | "Display the routes advertised to a BGP neighbor\n" |
9973d184 | 2144 | JSON_STR) |
718e3744 | 2145 | { |
d62a17ae | 2146 | int idx_ext_community = 5; |
2147 | int idx_ipv4 = 7; | |
2148 | int ret; | |
2149 | struct peer *peer; | |
2150 | struct prefix_rd prd; | |
2151 | union sockunion su; | |
d7c0a89a | 2152 | uint8_t uj = use_json(argc, argv); |
d62a17ae | 2153 | afi_t afi; |
2154 | int idx = 0; | |
2155 | ||
2156 | if (argv_find_and_parse_vpnvx(argv, argc, &idx, &afi)) { | |
2157 | ret = str2sockunion(argv[idx_ipv4]->arg, &su); | |
2158 | if (ret < 0) { | |
2159 | if (uj) { | |
2160 | json_object *json_no = NULL; | |
2161 | json_no = json_object_new_object(); | |
2162 | json_object_string_add(json_no, "warning", | |
2163 | "Malformed address"); | |
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, "Malformed address: %s\n", | |
2169 | argv[idx_ext_community]->arg); | |
2170 | return CMD_WARNING; | |
2171 | } | |
2172 | peer = peer_lookup(NULL, &su); | |
2173 | if (!peer || !peer->afc[afi][SAFI_MPLS_VPN]) { | |
2174 | if (uj) { | |
2175 | json_object *json_no = NULL; | |
2176 | json_no = json_object_new_object(); | |
2177 | json_object_string_add( | |
2178 | json_no, "warning", | |
2179 | "No such neighbor or address family"); | |
2180 | vty_out(vty, "%s\n", | |
2181 | json_object_to_json_string(json_no)); | |
2182 | json_object_free(json_no); | |
2183 | } else | |
2184 | vty_out(vty, | |
2185 | "%% No such neighbor or address family\n"); | |
2186 | return CMD_WARNING; | |
2187 | } | |
2188 | ||
2189 | ret = str2prefix_rd(argv[idx_ext_community]->arg, &prd); | |
2190 | if (!ret) { | |
2191 | if (uj) { | |
2192 | json_object *json_no = NULL; | |
2193 | json_no = json_object_new_object(); | |
2194 | json_object_string_add( | |
2195 | json_no, "warning", | |
2196 | "Malformed Route Distinguisher"); | |
2197 | vty_out(vty, "%s\n", | |
2198 | json_object_to_json_string(json_no)); | |
2199 | json_object_free(json_no); | |
2200 | } else | |
2201 | vty_out(vty, | |
2202 | "%% Malformed Route Distinguisher\n"); | |
2203 | return CMD_WARNING; | |
2204 | } | |
2205 | ||
2206 | return show_adj_route_vpn(vty, peer, &prd, AFI_IP, | |
2207 | SAFI_MPLS_VPN, uj); | |
2208 | } | |
2209 | return CMD_SUCCESS; | |
718e3744 | 2210 | } |
d6902373 | 2211 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
718e3744 | 2212 | |
d62a17ae | 2213 | void bgp_mplsvpn_init(void) |
718e3744 | 2214 | { |
d62a17ae | 2215 | install_element(BGP_VPNV4_NODE, &vpnv4_network_cmd); |
2216 | install_element(BGP_VPNV4_NODE, &vpnv4_network_route_map_cmd); | |
2217 | install_element(BGP_VPNV4_NODE, &no_vpnv4_network_cmd); | |
718e3744 | 2218 | |
d62a17ae | 2219 | install_element(BGP_VPNV6_NODE, &vpnv6_network_cmd); |
2220 | install_element(BGP_VPNV6_NODE, &no_vpnv6_network_cmd); | |
c286be96 | 2221 | |
d62a17ae | 2222 | install_element(VIEW_NODE, &show_bgp_ip_vpn_all_rd_cmd); |
af8528fa | 2223 | install_element(VIEW_NODE, &show_bgp_ip_vpn_rd_cmd); |
d6902373 | 2224 | #ifdef KEEP_OLD_VPN_COMMANDS |
af8528fa | 2225 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_cmd); |
d62a17ae | 2226 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_cmd); |
2227 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_tags_cmd); | |
2228 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_tags_cmd); | |
2229 | install_element(VIEW_NODE, &show_ip_bgp_vpn_all_neighbor_routes_cmd); | |
2230 | install_element(VIEW_NODE, &show_ip_bgp_vpn_rd_neighbor_routes_cmd); | |
2231 | install_element(VIEW_NODE, | |
2232 | &show_ip_bgp_vpn_all_neighbor_advertised_routes_cmd); | |
2233 | install_element(VIEW_NODE, | |
2234 | &show_ip_bgp_vpn_rd_neighbor_advertised_routes_cmd); | |
d6902373 | 2235 | #endif /* KEEP_OLD_VPN_COMMANDS */ |
718e3744 | 2236 | } |
301ad80a PG |
2237 | |
2238 | vrf_id_t get_first_vrf_for_redirect_with_rt(struct ecommunity *eckey) | |
2239 | { | |
2240 | struct listnode *mnode, *mnnode; | |
2241 | struct bgp *bgp; | |
2242 | ||
2243 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
2244 | struct ecommunity *ec; | |
2245 | ||
2246 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VRF) | |
2247 | continue; | |
2248 | ||
2249 | ec = bgp->vpn_policy[AFI_IP].import_redirect_rtlist; | |
2250 | ||
2251 | if (ecom_intersect(ec, eckey)) | |
2252 | return bgp->vrf_id; | |
2253 | } | |
2254 | return VRF_UNKNOWN; | |
2255 | } |