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718e3744 | 1 | /* zebra client |
896014f4 DL |
2 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro |
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 "stream.h" | |
25 | #include "network.h" | |
26 | #include "prefix.h" | |
27 | #include "log.h" | |
28 | #include "sockunion.h" | |
29 | #include "zclient.h" | |
30 | #include "routemap.h" | |
31 | #include "thread.h" | |
3f9c7369 | 32 | #include "queue.h" |
6e919709 | 33 | #include "memory.h" |
856ca177 | 34 | #include "lib/json.h" |
2376c3f2 | 35 | #include "lib/bfd.h" |
039f3a34 | 36 | #include "filter.h" |
cd1964ff | 37 | #include "mpls.h" |
128ea8ab | 38 | #include "vxlan.h" |
718e3744 | 39 | |
40 | #include "bgpd/bgpd.h" | |
41 | #include "bgpd/bgp_route.h" | |
42 | #include "bgpd/bgp_attr.h" | |
43 | #include "bgpd/bgp_nexthop.h" | |
44 | #include "bgpd/bgp_zebra.h" | |
45 | #include "bgpd/bgp_fsm.h" | |
a39275d7 | 46 | #include "bgpd/bgp_debug.h" |
8196f13d | 47 | #include "bgpd/bgp_mpath.h" |
fb018d25 | 48 | #include "bgpd/bgp_nexthop.h" |
ffd0c037 | 49 | #include "bgpd/bgp_nht.h" |
8c4f6381 | 50 | #include "bgpd/bgp_bfd.h" |
cd1964ff | 51 | #include "bgpd/bgp_label.h" |
65efcfce | 52 | #if ENABLE_BGP_VNC |
d62a17ae | 53 | #include "bgpd/rfapi/rfapi_backend.h" |
54 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 55 | #endif |
128ea8ab | 56 | #include "bgpd/bgp_evpn.h" |
ddb5b488 | 57 | #include "bgpd/bgp_mplsvpn.h" |
955bfd98 | 58 | #include "bgpd/bgp_labelpool.h" |
6b0655a2 | 59 | |
718e3744 | 60 | /* All information about zebra. */ |
228da428 | 61 | struct zclient *zclient = NULL; |
718e3744 | 62 | |
ad4cbda1 | 63 | /* Can we install into zebra? */ |
d62a17ae | 64 | static inline int bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 65 | { |
d62a17ae | 66 | if (zclient->sock <= 0) |
67 | return 0; | |
ad4cbda1 | 68 | |
d62a17ae | 69 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) |
70 | return 0; | |
ad4cbda1 | 71 | |
d62a17ae | 72 | return 1; |
ad4cbda1 | 73 | } |
74 | ||
afbb1c59 LB |
75 | int zclient_num_connects; |
76 | ||
18a6dce6 | 77 | /* Router-id update message from zebra. */ |
d62a17ae | 78 | static int bgp_router_id_update(int command, struct zclient *zclient, |
79 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 80 | { |
d62a17ae | 81 | struct prefix router_id; |
718e3744 | 82 | |
d62a17ae | 83 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 84 | |
d62a17ae | 85 | if (BGP_DEBUG(zebra, ZEBRA)) { |
86 | char buf[PREFIX2STR_BUFFER]; | |
87 | prefix2str(&router_id, buf, sizeof(buf)); | |
88 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
89 | } | |
a39275d7 | 90 | |
d62a17ae | 91 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
92 | return 0; | |
718e3744 | 93 | } |
94 | ||
fb018d25 | 95 | /* Nexthop update message from zebra. */ |
d62a17ae | 96 | static int bgp_read_nexthop_update(int command, struct zclient *zclient, |
97 | zebra_size_t length, vrf_id_t vrf_id) | |
fb018d25 | 98 | { |
d62a17ae | 99 | bgp_parse_nexthop_update(command, vrf_id); |
100 | return 0; | |
078430f6 DS |
101 | } |
102 | ||
d62a17ae | 103 | static int bgp_read_import_check_update(int command, struct zclient *zclient, |
104 | zebra_size_t length, vrf_id_t vrf_id) | |
078430f6 | 105 | { |
d62a17ae | 106 | bgp_parse_nexthop_update(command, vrf_id); |
107 | return 0; | |
fb018d25 DS |
108 | } |
109 | ||
4a04e5f7 | 110 | /* Set or clear interface on which unnumbered neighbor is configured. This |
111 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
112 | * interface. | |
113 | */ | |
d62a17ae | 114 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
115 | struct interface *upd_ifp) | |
4a04e5f7 | 116 | { |
d62a17ae | 117 | struct listnode *node, *nnode; |
118 | struct peer *peer; | |
119 | ||
120 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
121 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
122 | if (upd_ifp) { | |
123 | peer->ifp = upd_ifp; | |
124 | bgp_zebra_initiate_radv(bgp, peer); | |
125 | } else { | |
126 | bgp_zebra_terminate_radv(bgp, peer); | |
127 | peer->ifp = upd_ifp; | |
128 | } | |
129 | } | |
130 | } | |
4a04e5f7 | 131 | } |
132 | ||
d62a17ae | 133 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
134 | zebra_size_t length) | |
cd1964ff | 135 | { |
d62a17ae | 136 | bgp_parse_fec_update(); |
137 | return 0; | |
cd1964ff DS |
138 | } |
139 | ||
d62a17ae | 140 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 141 | { |
d62a17ae | 142 | struct listnode *node, *nnode; |
143 | struct peer *peer; | |
144 | ||
145 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
146 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
147 | && peer->status != Established) { | |
148 | if (peer_active(peer)) | |
149 | BGP_EVENT_ADD(peer, BGP_Stop); | |
150 | BGP_EVENT_ADD(peer, BGP_Start); | |
151 | } | |
152 | } | |
a80beece DS |
153 | } |
154 | ||
d62a17ae | 155 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 156 | { |
d62a17ae | 157 | struct listnode *node; |
158 | struct connected *connected; | |
159 | struct interface *ifp; | |
160 | struct prefix *p; | |
161 | ||
162 | /* Kick-off the FSM for any relevant peers only if there is a | |
163 | * valid local address on the interface. | |
164 | */ | |
165 | ifp = ifc->ifp; | |
166 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
167 | p = connected->address; | |
168 | if (p->family == AF_INET6 | |
169 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
170 | break; | |
171 | } | |
172 | if (!connected) | |
173 | return; | |
174 | ||
175 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
176 | } |
177 | ||
d62a17ae | 178 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
179 | int del) | |
a80beece | 180 | { |
d62a17ae | 181 | struct listnode *node, *nnode; |
182 | struct peer *peer; | |
183 | struct interface *ifp; | |
184 | ||
185 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
186 | if (peer->conf_if | |
187 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
188 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
189 | BGP_EVENT_ADD(peer, BGP_Stop); | |
190 | } | |
191 | } | |
192 | /* Free neighbor also, if we're asked to. */ | |
193 | if (del) { | |
194 | ifp = ifc->ifp; | |
195 | listnode_delete(ifp->nbr_connected, ifc); | |
196 | nbr_connected_free(ifc); | |
197 | } | |
a80beece DS |
198 | } |
199 | ||
718e3744 | 200 | /* Inteface addition message from zebra. */ |
d62a17ae | 201 | static int bgp_interface_add(int command, struct zclient *zclient, |
202 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 203 | { |
d62a17ae | 204 | struct interface *ifp; |
205 | struct bgp *bgp; | |
718e3744 | 206 | |
d62a17ae | 207 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
208 | if (!ifp) // unexpected | |
209 | return 0; | |
718e3744 | 210 | |
d62a17ae | 211 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
212 | zlog_debug("Rx Intf add VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 213 | |
d62a17ae | 214 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
215 | if (!bgp) | |
216 | return 0; | |
4a04e5f7 | 217 | |
d62a17ae | 218 | bgp_update_interface_nbrs(bgp, ifp, ifp); |
219 | return 0; | |
718e3744 | 220 | } |
221 | ||
d62a17ae | 222 | static int bgp_interface_delete(int command, struct zclient *zclient, |
223 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 224 | { |
d62a17ae | 225 | struct stream *s; |
226 | struct interface *ifp; | |
227 | struct bgp *bgp; | |
718e3744 | 228 | |
2f9123e0 DS |
229 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
230 | if (!bgp) | |
231 | return 0; | |
232 | ||
d62a17ae | 233 | s = zclient->ibuf; |
234 | ifp = zebra_interface_state_read(s, vrf_id); | |
235 | if (!ifp) /* This may happen if we've just unregistered for a VRF. */ | |
236 | return 0; | |
a4499b83 | 237 | |
d62a17ae | 238 | if (BGP_DEBUG(zebra, ZEBRA)) |
239 | zlog_debug("Rx Intf del VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 240 | |
d62a17ae | 241 | bgp_update_interface_nbrs(bgp, ifp, NULL); |
64745052 | 242 | |
ff880b78 | 243 | if_set_index(ifp, IFINDEX_INTERNAL); |
d62a17ae | 244 | return 0; |
718e3744 | 245 | } |
246 | ||
d62a17ae | 247 | static int bgp_interface_up(int command, struct zclient *zclient, |
248 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 249 | { |
d62a17ae | 250 | struct stream *s; |
251 | struct interface *ifp; | |
252 | struct connected *c; | |
253 | struct nbr_connected *nc; | |
254 | struct listnode *node, *nnode; | |
255 | struct bgp *bgp; | |
6aeb9e78 | 256 | |
2f9123e0 DS |
257 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
258 | if (!bgp) | |
259 | return 0; | |
260 | ||
d62a17ae | 261 | s = zclient->ibuf; |
262 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 263 | |
d62a17ae | 264 | if (!ifp) |
265 | return 0; | |
718e3744 | 266 | |
d62a17ae | 267 | if (BGP_DEBUG(zebra, ZEBRA)) |
268 | zlog_debug("Rx Intf up VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 269 | |
d62a17ae | 270 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
271 | bgp_connected_add(bgp, c); | |
718e3744 | 272 | |
d62a17ae | 273 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
274 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 275 | |
d62a17ae | 276 | return 0; |
718e3744 | 277 | } |
278 | ||
d62a17ae | 279 | static int bgp_interface_down(int command, struct zclient *zclient, |
280 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 281 | { |
d62a17ae | 282 | struct stream *s; |
283 | struct interface *ifp; | |
284 | struct connected *c; | |
285 | struct nbr_connected *nc; | |
286 | struct listnode *node, *nnode; | |
287 | struct bgp *bgp; | |
6aeb9e78 | 288 | |
2f9123e0 DS |
289 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
290 | if (!bgp) | |
291 | return 0; | |
292 | ||
d62a17ae | 293 | s = zclient->ibuf; |
294 | ifp = zebra_interface_state_read(s, vrf_id); | |
295 | if (!ifp) | |
296 | return 0; | |
718e3744 | 297 | |
d62a17ae | 298 | if (BGP_DEBUG(zebra, ZEBRA)) |
299 | zlog_debug("Rx Intf down VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 300 | |
d62a17ae | 301 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
302 | bgp_connected_delete(bgp, c); | |
718e3744 | 303 | |
d62a17ae | 304 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
305 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 306 | |
d62a17ae | 307 | /* Fast external-failover */ |
308 | { | |
309 | struct peer *peer; | |
718e3744 | 310 | |
d62a17ae | 311 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) |
312 | return 0; | |
718e3744 | 313 | |
d62a17ae | 314 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 315 | #if defined(HAVE_CUMULUS) |
d62a17ae | 316 | /* Take down directly connected EBGP peers as well as |
317 | * 1-hop BFD | |
318 | * tracked (directly connected) IBGP peers. | |
319 | */ | |
320 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1) | |
321 | && (!peer->bfd_info | |
322 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 323 | #else |
d62a17ae | 324 | /* Take down directly connected EBGP peers */ |
325 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
8c4f6381 | 326 | #endif |
d62a17ae | 327 | continue; |
718e3744 | 328 | |
d62a17ae | 329 | if (ifp == peer->nexthop.ifp) { |
330 | BGP_EVENT_ADD(peer, BGP_Stop); | |
331 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
332 | } | |
333 | } | |
334 | } | |
718e3744 | 335 | |
d62a17ae | 336 | return 0; |
718e3744 | 337 | } |
338 | ||
d62a17ae | 339 | static int bgp_interface_address_add(int command, struct zclient *zclient, |
340 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 341 | { |
d62a17ae | 342 | struct connected *ifc; |
2f9123e0 DS |
343 | struct bgp *bgp; |
344 | ||
345 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
346 | if (!bgp) | |
347 | return 0; | |
d62a17ae | 348 | |
349 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); | |
350 | ||
351 | if (ifc == NULL) | |
352 | return 0; | |
353 | ||
354 | if (bgp_debug_zebra(ifc->address)) { | |
355 | char buf[PREFIX2STR_BUFFER]; | |
356 | prefix2str(ifc->address, buf, sizeof(buf)); | |
357 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
358 | ifc->ifp->name, buf); | |
359 | } | |
360 | ||
361 | if (if_is_operative(ifc->ifp)) { | |
d62a17ae | 362 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 363 | |
d62a17ae | 364 | /* If we have learnt of any neighbors on this interface, |
365 | * check to kick off any BGP interface-based neighbors, | |
366 | * but only if this is a link-local address. | |
367 | */ | |
368 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
369 | && !list_isempty(ifc->ifp->nbr_connected)) | |
370 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
371 | } | |
372 | ||
373 | return 0; | |
718e3744 | 374 | } |
375 | ||
d62a17ae | 376 | static int bgp_interface_address_delete(int command, struct zclient *zclient, |
377 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 378 | { |
d62a17ae | 379 | struct connected *ifc; |
380 | struct bgp *bgp; | |
6aeb9e78 | 381 | |
2f9123e0 DS |
382 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
383 | if (!bgp) | |
384 | return 0; | |
385 | ||
d62a17ae | 386 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); |
718e3744 | 387 | |
d62a17ae | 388 | if (ifc == NULL) |
389 | return 0; | |
718e3744 | 390 | |
d62a17ae | 391 | if (bgp_debug_zebra(ifc->address)) { |
392 | char buf[PREFIX2STR_BUFFER]; | |
393 | prefix2str(ifc->address, buf, sizeof(buf)); | |
394 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
395 | ifc->ifp->name, buf); | |
396 | } | |
a39275d7 | 397 | |
d62a17ae | 398 | if (if_is_operative(ifc->ifp)) { |
2f9123e0 | 399 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 400 | } |
718e3744 | 401 | |
d62a17ae | 402 | connected_free(ifc); |
718e3744 | 403 | |
d62a17ae | 404 | return 0; |
718e3744 | 405 | } |
406 | ||
d62a17ae | 407 | static int bgp_interface_nbr_address_add(int command, struct zclient *zclient, |
408 | zebra_size_t length, vrf_id_t vrf_id) | |
a80beece | 409 | { |
d62a17ae | 410 | struct nbr_connected *ifc = NULL; |
411 | struct bgp *bgp; | |
412 | ||
413 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); | |
414 | ||
415 | if (ifc == NULL) | |
416 | return 0; | |
417 | ||
418 | if (bgp_debug_zebra(ifc->address)) { | |
419 | char buf[PREFIX2STR_BUFFER]; | |
420 | prefix2str(ifc->address, buf, sizeof(buf)); | |
421 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
422 | ifc->ifp->name, buf); | |
423 | } | |
424 | ||
425 | if (if_is_operative(ifc->ifp)) { | |
426 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
427 | if (bgp) | |
428 | bgp_nbr_connected_add(bgp, ifc); | |
429 | } | |
430 | ||
431 | return 0; | |
a80beece DS |
432 | } |
433 | ||
d62a17ae | 434 | static int bgp_interface_nbr_address_delete(int command, |
435 | struct zclient *zclient, | |
436 | zebra_size_t length, | |
437 | vrf_id_t vrf_id) | |
a80beece | 438 | { |
d62a17ae | 439 | struct nbr_connected *ifc = NULL; |
440 | struct bgp *bgp; | |
6aeb9e78 | 441 | |
d62a17ae | 442 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); |
a80beece | 443 | |
d62a17ae | 444 | if (ifc == NULL) |
445 | return 0; | |
a80beece | 446 | |
d62a17ae | 447 | if (bgp_debug_zebra(ifc->address)) { |
448 | char buf[PREFIX2STR_BUFFER]; | |
449 | prefix2str(ifc->address, buf, sizeof(buf)); | |
450 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
451 | ifc->ifp->name, buf); | |
452 | } | |
a80beece | 453 | |
d62a17ae | 454 | if (if_is_operative(ifc->ifp)) { |
455 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
456 | if (bgp) | |
457 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
458 | } | |
a80beece | 459 | |
d62a17ae | 460 | nbr_connected_free(ifc); |
a80beece | 461 | |
d62a17ae | 462 | return 0; |
a80beece DS |
463 | } |
464 | ||
bfcd43b2 | 465 | /* VRF update for an interface. */ |
d62a17ae | 466 | static int bgp_interface_vrf_update(int command, struct zclient *zclient, |
467 | zebra_size_t length, vrf_id_t vrf_id) | |
bfcd43b2 | 468 | { |
d62a17ae | 469 | struct interface *ifp; |
470 | vrf_id_t new_vrf_id; | |
471 | struct connected *c; | |
472 | struct nbr_connected *nc; | |
473 | struct listnode *node, *nnode; | |
474 | struct bgp *bgp; | |
bfcd43b2 | 475 | |
d62a17ae | 476 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
477 | &new_vrf_id); | |
478 | if (!ifp) | |
479 | return 0; | |
bfcd43b2 | 480 | |
d62a17ae | 481 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
482 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
483 | ifp->name, new_vrf_id); | |
bfcd43b2 | 484 | |
d62a17ae | 485 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
486 | if (!bgp) | |
487 | return 0; | |
bfcd43b2 | 488 | |
d62a17ae | 489 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
490 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 491 | |
d62a17ae | 492 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
493 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 494 | |
d62a17ae | 495 | /* Fast external-failover */ |
496 | { | |
497 | struct peer *peer; | |
bfcd43b2 | 498 | |
d62a17ae | 499 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) |
500 | return 0; | |
bfcd43b2 | 501 | |
d62a17ae | 502 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
503 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
504 | continue; | |
bfcd43b2 | 505 | |
d62a17ae | 506 | if (ifp == peer->nexthop.ifp) |
507 | BGP_EVENT_ADD(peer, BGP_Stop); | |
508 | } | |
509 | } | |
bfcd43b2 | 510 | |
d62a17ae | 511 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 512 | |
d62a17ae | 513 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
514 | if (!bgp) | |
515 | return 0; | |
bfcd43b2 | 516 | |
d62a17ae | 517 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
518 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 519 | |
d62a17ae | 520 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
521 | bgp_nbr_connected_add(bgp, nc); | |
522 | return 0; | |
bfcd43b2 | 523 | } |
524 | ||
718e3744 | 525 | /* Zebra route add and delete treatment. */ |
74489921 RW |
526 | static int zebra_read_route(int command, struct zclient *zclient, |
527 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 528 | { |
9de1f7ff | 529 | enum nexthop_types_t nhtype; |
74489921 RW |
530 | struct zapi_route api; |
531 | union g_addr nexthop; | |
9de1f7ff | 532 | ifindex_t ifindex; |
74489921 | 533 | int add, i; |
d62a17ae | 534 | struct bgp *bgp; |
535 | ||
536 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
537 | if (!bgp) | |
538 | return 0; | |
539 | ||
74489921 RW |
540 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
541 | return -1; | |
d62a17ae | 542 | |
74489921 RW |
543 | /* we completely ignore srcdest routes for now. */ |
544 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
545 | return 0; | |
d62a17ae | 546 | |
74489921 RW |
547 | /* ignore link-local address. */ |
548 | if (api.prefix.family == AF_INET6 | |
549 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
550 | return 0; | |
d62a17ae | 551 | |
74489921 RW |
552 | nexthop = api.nexthops[0].gate; |
553 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 554 | nhtype = api.nexthops[0].type; |
d62a17ae | 555 | |
74489921 RW |
556 | add = (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
557 | if (add) { | |
d62a17ae | 558 | /* |
559 | * The ADD message is actually an UPDATE and there is no | |
560 | * explicit DEL | |
561 | * for a prior redistributed route, if any. So, perform an | |
562 | * implicit | |
563 | * DEL processing for the same redistributed route from any | |
564 | * other | |
565 | * source type. | |
566 | */ | |
567 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
568 | if (i != api.type) | |
74489921 | 569 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 570 | api.instance); |
571 | } | |
572 | ||
573 | /* Now perform the add/update. */ | |
74489921 | 574 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
575 | nhtype, api.metric, api.type, api.instance, |
576 | api.tag); | |
d62a17ae | 577 | } else { |
74489921 RW |
578 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
579 | api.instance); | |
a39275d7 | 580 | } |
d62a17ae | 581 | |
74489921 RW |
582 | if (bgp_debug_zebra(&api.prefix)) { |
583 | char buf[2][PREFIX_STRLEN]; | |
584 | ||
585 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
586 | inet_ntop(api.prefix.family, &nexthop, buf[1], sizeof(buf[1])); | |
587 | zlog_debug( | |
588 | "Rx route %s VRF %u %s[%d] %s " | |
589 | "nexthop %s metric %u tag %" ROUTE_TAG_PRI, | |
590 | (add) ? "add" : "delete", vrf_id, | |
591 | zebra_route_string(api.type), api.instance, buf[0], | |
592 | buf[1], api.metric, api.tag); | |
d62a17ae | 593 | } |
594 | ||
595 | return 0; | |
718e3744 | 596 | } |
6b0655a2 | 597 | |
d62a17ae | 598 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 599 | { |
f4e14fdb | 600 | struct vrf *vrf; |
d62a17ae | 601 | struct listnode *cnode; |
602 | struct interface *ifp; | |
603 | struct connected *connected; | |
604 | struct prefix_ipv4 p; | |
605 | struct prefix *cp; | |
606 | ||
f4e14fdb RW |
607 | vrf = vrf_lookup_by_id(vrf_id); |
608 | if (!vrf) | |
609 | return NULL; | |
610 | ||
d62a17ae | 611 | p.family = AF_INET; |
612 | p.prefix = *addr; | |
613 | p.prefixlen = IPV4_MAX_BITLEN; | |
614 | ||
451fda4f | 615 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 616 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
617 | cp = connected->address; | |
618 | ||
619 | if (cp->family == AF_INET) | |
620 | if (prefix_match(cp, (struct prefix *)&p)) | |
621 | return ifp; | |
622 | } | |
718e3744 | 623 | } |
d62a17ae | 624 | return NULL; |
718e3744 | 625 | } |
626 | ||
d62a17ae | 627 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 628 | { |
f4e14fdb | 629 | struct vrf *vrf; |
d62a17ae | 630 | struct listnode *cnode; |
631 | struct interface *ifp; | |
632 | struct connected *connected; | |
633 | struct prefix *cp; | |
634 | ||
f4e14fdb RW |
635 | vrf = vrf_lookup_by_id(vrf_id); |
636 | if (!vrf) | |
637 | return NULL; | |
638 | ||
451fda4f | 639 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 640 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
641 | cp = connected->address; | |
642 | ||
643 | if (cp->family == AF_INET) | |
644 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
645 | return ifp; | |
646 | } | |
718e3744 | 647 | } |
d62a17ae | 648 | return NULL; |
718e3744 | 649 | } |
650 | ||
d62a17ae | 651 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
652 | vrf_id_t vrf_id) | |
718e3744 | 653 | { |
f4e14fdb | 654 | struct vrf *vrf; |
d62a17ae | 655 | struct listnode *cnode; |
656 | struct interface *ifp; | |
657 | struct connected *connected; | |
658 | struct prefix_ipv6 p; | |
659 | struct prefix *cp; | |
660 | ||
f4e14fdb RW |
661 | vrf = vrf_lookup_by_id(vrf_id); |
662 | if (!vrf) | |
663 | return NULL; | |
664 | ||
d62a17ae | 665 | p.family = AF_INET6; |
666 | p.prefix = *addr; | |
667 | p.prefixlen = IPV6_MAX_BITLEN; | |
668 | ||
451fda4f | 669 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 670 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
671 | cp = connected->address; | |
672 | ||
673 | if (cp->family == AF_INET6) | |
674 | if (prefix_match(cp, (struct prefix *)&p)) { | |
675 | if (IN6_IS_ADDR_LINKLOCAL( | |
676 | &cp->u.prefix6)) { | |
677 | if (ifindex == ifp->ifindex) | |
678 | return ifp; | |
679 | } else | |
680 | return ifp; | |
681 | } | |
682 | } | |
718e3744 | 683 | } |
d62a17ae | 684 | return NULL; |
718e3744 | 685 | } |
686 | ||
d62a17ae | 687 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
688 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 689 | { |
f4e14fdb | 690 | struct vrf *vrf; |
d62a17ae | 691 | struct listnode *cnode; |
692 | struct interface *ifp; | |
693 | struct connected *connected; | |
694 | struct prefix *cp; | |
695 | ||
f4e14fdb RW |
696 | vrf = vrf_lookup_by_id(vrf_id); |
697 | if (!vrf) | |
698 | return NULL; | |
699 | ||
451fda4f | 700 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 701 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
702 | cp = connected->address; | |
703 | ||
704 | if (cp->family == AF_INET6) | |
705 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
706 | if (IN6_IS_ADDR_LINKLOCAL( | |
707 | &cp->u.prefix6)) { | |
708 | if (ifindex == ifp->ifindex) | |
709 | return ifp; | |
710 | } else | |
711 | return ifp; | |
712 | } | |
713 | } | |
718e3744 | 714 | } |
d62a17ae | 715 | return NULL; |
718e3744 | 716 | } |
717 | ||
d62a17ae | 718 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 719 | { |
d62a17ae | 720 | struct listnode *cnode; |
721 | struct connected *connected; | |
722 | struct prefix *cp; | |
723 | ||
724 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
725 | cp = connected->address; | |
726 | ||
727 | if (cp->family == AF_INET6) | |
728 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
729 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
730 | return 1; | |
731 | } | |
732 | } | |
733 | return 0; | |
718e3744 | 734 | } |
735 | ||
d62a17ae | 736 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 737 | { |
d62a17ae | 738 | struct listnode *cnode; |
739 | struct connected *connected; | |
740 | struct prefix *cp; | |
741 | ||
742 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
743 | cp = connected->address; | |
744 | ||
745 | if (cp->family == AF_INET6) | |
746 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
747 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
748 | return 1; | |
749 | } | |
750 | } | |
751 | return 0; | |
718e3744 | 752 | } |
718e3744 | 753 | |
d62a17ae | 754 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 755 | { |
d62a17ae | 756 | struct listnode *cnode; |
757 | struct connected *connected; | |
758 | struct prefix *cp; | |
759 | ||
760 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
761 | cp = connected->address; | |
762 | if ((cp->family == AF_INET) | |
763 | && !ipv4_martian(&(cp->u.prefix4))) { | |
764 | *addr = cp->u.prefix4; | |
765 | return 1; | |
766 | } | |
767 | } | |
768 | return 0; | |
6ee06fa9 PM |
769 | } |
770 | ||
d62a17ae | 771 | int bgp_nexthop_set(union sockunion *local, union sockunion *remote, |
772 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 773 | { |
d62a17ae | 774 | int ret = 0; |
775 | struct interface *ifp = NULL; | |
776 | ||
777 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
778 | ||
779 | if (!local) | |
780 | return -1; | |
781 | if (!remote) | |
782 | return -1; | |
783 | ||
784 | if (local->sa.sa_family == AF_INET) { | |
785 | nexthop->v4 = local->sin.sin_addr; | |
786 | if (peer->update_if) | |
787 | ifp = if_lookup_by_name(peer->update_if, | |
788 | peer->bgp->vrf_id); | |
789 | else | |
790 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
791 | peer->bgp->vrf_id); | |
718e3744 | 792 | } |
d62a17ae | 793 | if (local->sa.sa_family == AF_INET6) { |
794 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
795 | if (peer->conf_if || peer->ifname) | |
796 | ifp = if_lookup_by_name(peer->conf_if | |
797 | ? peer->conf_if | |
798 | : peer->ifname, | |
799 | peer->bgp->vrf_id); | |
800 | } else if (peer->update_if) | |
801 | ifp = if_lookup_by_name(peer->update_if, | |
802 | peer->bgp->vrf_id); | |
803 | else | |
804 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
805 | local->sin6.sin6_scope_id, | |
806 | peer->bgp->vrf_id); | |
718e3744 | 807 | } |
d62a17ae | 808 | |
809 | if (!ifp) | |
810 | return -1; | |
811 | ||
812 | nexthop->ifp = ifp; | |
813 | ||
814 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
815 | if (local->sa.sa_family == AF_INET) { | |
816 | /* IPv6 nexthop*/ | |
817 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
818 | ||
819 | if (!ret) { | |
820 | /* There is no global nexthop. Use link-local address as | |
821 | * both the | |
822 | * global and link-local nexthop. In this scenario, the | |
823 | * expectation | |
824 | * for interop is that the network admin would use a | |
825 | * route-map to | |
826 | * specify the global IPv6 nexthop. | |
827 | */ | |
828 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
829 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
830 | IPV6_MAX_BYTELEN); | |
831 | } else | |
832 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
833 | ||
834 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
835 | peer->shared_network = 1; | |
836 | else | |
837 | peer->shared_network = 0; | |
718e3744 | 838 | } |
718e3744 | 839 | |
d62a17ae | 840 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
841 | if (local->sa.sa_family == AF_INET6) { | |
842 | struct interface *direct = NULL; | |
843 | ||
844 | /* IPv4 nexthop. */ | |
845 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
846 | if (!ret && peer->local_id.s_addr) | |
847 | nexthop->v4 = peer->local_id; | |
848 | ||
849 | /* Global address*/ | |
850 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
851 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
852 | IPV6_MAX_BYTELEN); | |
853 | ||
854 | /* If directory connected set link-local address. */ | |
855 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
856 | remote->sin6.sin6_scope_id, | |
857 | peer->bgp->vrf_id); | |
858 | if (direct) | |
859 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
860 | } else | |
861 | /* Link-local address. */ | |
862 | { | |
863 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
864 | ||
865 | /* If there is no global address. Set link-local | |
866 | address as | |
867 | global. I know this break RFC specification... */ | |
868 | /* In this scenario, the expectation for interop is that | |
869 | * the | |
870 | * network admin would use a route-map to specify the | |
871 | * global | |
872 | * IPv6 nexthop. | |
873 | */ | |
874 | if (!ret) | |
875 | memcpy(&nexthop->v6_global, | |
876 | &local->sin6.sin6_addr, | |
877 | IPV6_MAX_BYTELEN); | |
878 | /* Always set the link-local address */ | |
879 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
880 | IPV6_MAX_BYTELEN); | |
881 | } | |
882 | ||
883 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
884 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
885 | remote->sin6.sin6_scope_id, | |
886 | peer->bgp->vrf_id)) | |
887 | peer->shared_network = 1; | |
888 | else | |
889 | peer->shared_network = 0; | |
890 | } | |
718e3744 | 891 | |
d62a17ae | 892 | /* KAME stack specific treatment. */ |
718e3744 | 893 | #ifdef KAME |
d62a17ae | 894 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
895 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
896 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
897 | } | |
898 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
899 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
900 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
901 | } | |
718e3744 | 902 | #endif /* KAME */ |
e33a4880 | 903 | |
d62a17ae | 904 | /* If we have identified the local interface, there is no error for now. |
905 | */ | |
906 | return 0; | |
718e3744 | 907 | } |
908 | ||
d62a17ae | 909 | static struct in6_addr *bgp_info_to_ipv6_nexthop(struct bgp_info *info) |
73ac8160 | 910 | { |
d62a17ae | 911 | struct in6_addr *nexthop = NULL; |
912 | ||
913 | /* Only global address nexthop exists. */ | |
914 | if (info->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL) | |
915 | nexthop = &info->attr->mp_nexthop_global; | |
916 | ||
917 | /* If both global and link-local address present. */ | |
918 | if (info->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) { | |
919 | /* Check if route-map is set to prefer global over link-local */ | |
920 | if (info->attr->mp_nexthop_prefer_global) | |
921 | nexthop = &info->attr->mp_nexthop_global; | |
922 | else { | |
923 | /* Workaround for Cisco's nexthop bug. */ | |
924 | if (IN6_IS_ADDR_UNSPECIFIED( | |
925 | &info->attr->mp_nexthop_global) | |
926 | && info->peer->su_remote->sa.sa_family == AF_INET6) | |
927 | nexthop = | |
928 | &info->peer->su_remote->sin6.sin6_addr; | |
929 | else | |
930 | nexthop = &info->attr->mp_nexthop_local; | |
931 | } | |
932 | } | |
933 | ||
934 | return nexthop; | |
73ac8160 DS |
935 | } |
936 | ||
d62a17ae | 937 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
938 | struct bgp_info *info) | |
73ac8160 | 939 | { |
b4cb15c6 DL |
940 | route_map_result_t ret; |
941 | ||
942 | ret = route_map_apply(map, p, RMAP_BGP, info); | |
943 | bgp_attr_flush(info->attr); | |
944 | ||
945 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 946 | return 1; |
947 | ||
948 | if (bgp_debug_zebra(p)) { | |
949 | if (p->family == AF_INET) { | |
950 | char buf[2][INET_ADDRSTRLEN]; | |
951 | zlog_debug( | |
952 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
953 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
954 | sizeof(buf[0])), | |
955 | p->prefixlen, | |
956 | inet_ntop(AF_INET, &info->attr->nexthop, buf[1], | |
957 | sizeof(buf[1]))); | |
958 | } | |
959 | if (p->family == AF_INET6) { | |
960 | char buf[2][INET6_ADDRSTRLEN]; | |
961 | zlog_debug( | |
962 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
963 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
964 | sizeof(buf[0])), | |
965 | p->prefixlen, | |
966 | inet_ntop(AF_INET6, | |
967 | bgp_info_to_ipv6_nexthop(info), | |
968 | buf[1], sizeof(buf[1]))); | |
969 | } | |
970 | } | |
971 | return 0; | |
73ac8160 DS |
972 | } |
973 | ||
b98f7728 PG |
974 | static struct thread *bgp_tm_thread_connect; |
975 | static bool bgp_tm_status_connected; | |
976 | ||
977 | static int bgp_zebra_tm_connect(struct thread *t) | |
978 | { | |
979 | struct zclient *zclient; | |
980 | int delay = 10, ret = 0; | |
981 | ||
982 | zclient = THREAD_ARG(t); | |
983 | if (bgp_tm_status_connected && zclient->sock > 0) | |
984 | delay = 60; | |
985 | else { | |
986 | bgp_tm_status_connected = false; | |
987 | ret = tm_table_manager_connect(zclient); | |
988 | } | |
989 | if (ret < 0) { | |
990 | zlog_warn("Error connecting to table manager!"); | |
991 | bgp_tm_status_connected = false; | |
992 | } else { | |
993 | if (!bgp_tm_status_connected) | |
994 | zlog_debug("Connecting to table manager. Success"); | |
995 | bgp_tm_status_connected = true; | |
996 | } | |
997 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
998 | &bgp_tm_thread_connect); | |
999 | return 0; | |
1000 | } | |
1001 | ||
1002 | void bgp_zebra_init_tm_connect(void) | |
1003 | { | |
1004 | int delay = 1; | |
1005 | ||
1006 | /* if already set, do nothing | |
1007 | */ | |
1008 | if (bgp_tm_thread_connect != NULL) | |
1009 | return; | |
1010 | bgp_tm_status_connected = false; | |
1011 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1012 | &bgp_tm_thread_connect); | |
1013 | } | |
1014 | ||
1015 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1016 | uint32_t *start, uint32_t *end) | |
1017 | { | |
1018 | int ret; | |
1019 | ||
1020 | if (!bgp_tm_status_connected) | |
1021 | return -1; | |
1022 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1023 | if (ret < 0) { | |
1024 | zlog_err("BGP: Error getting table chunk %u", chunk_size); | |
1025 | return -1; | |
1026 | } | |
1027 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1028 | chunk_size, *start, *end); | |
1029 | return 0; | |
1030 | } | |
1031 | ||
d62a17ae | 1032 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
1033 | struct bgp_info *info, struct bgp *bgp, afi_t afi, | |
1034 | safi_t safi) | |
718e3744 | 1035 | { |
9913029c RW |
1036 | struct zapi_route api; |
1037 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 1038 | int nh_family; |
a74e593b | 1039 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1040 | int has_valid_label = 0; |
d7c0a89a | 1041 | uint8_t distance; |
d62a17ae | 1042 | struct peer *peer; |
1043 | struct bgp_info *mpinfo; | |
d7c0a89a | 1044 | uint32_t metric; |
b4cb15c6 | 1045 | struct attr local_attr; |
d62a17ae | 1046 | struct bgp_info local_info; |
b4cb15c6 | 1047 | struct bgp_info *mpinfo_cp = &local_info; |
d62a17ae | 1048 | route_tag_t tag; |
1049 | mpls_label_t label; | |
ddb5b488 | 1050 | int nh_othervrf = 0; |
960035b2 | 1051 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
d62a17ae | 1052 | |
1053 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1054 | * know of this instance. | |
1055 | */ | |
1056 | if (!bgp_install_info_to_zebra(bgp)) | |
1057 | return; | |
1058 | ||
d62a17ae | 1059 | if (bgp->main_zebra_update_hold) |
1060 | return; | |
1061 | ||
960035b2 PZ |
1062 | if (bgp_debug_zebra(p)) |
1063 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); | |
1064 | ||
ddb5b488 PZ |
1065 | /* |
1066 | * vrf leaking support (will have only one nexthop) | |
1067 | */ | |
1068 | if (info->extra && info->extra->bgp_orig) | |
1069 | nh_othervrf = 1; | |
1070 | ||
9913029c RW |
1071 | /* Make Zebra API structure. */ |
1072 | memset(&api, 0, sizeof(api)); | |
2dbad57f | 1073 | memcpy(&api.rmac, &(info->attr->rmac), sizeof(struct ethaddr)); |
9913029c RW |
1074 | api.vrf_id = bgp->vrf_id; |
1075 | api.type = ZEBRA_ROUTE_BGP; | |
1076 | api.safi = safi; | |
1077 | api.prefix = *p; | |
1078 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1079 | ||
d62a17ae | 1080 | peer = info->peer; |
1081 | ||
ddb5b488 PZ |
1082 | if (info->type == ZEBRA_ROUTE_BGP |
1083 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1084 | ||
1ec90b5e | 1085 | /* Obtain peer from parent */ |
1086 | if (info->extra && info->extra->parent) | |
1087 | peer = ((struct bgp_info *)(info->extra->parent))->peer; | |
ddb5b488 PZ |
1088 | } |
1089 | ||
d62a17ae | 1090 | tag = info->attr->tag; |
1091 | ||
1092 | /* When we create an aggregate route we must also install a Null0 route | |
1093 | * in | |
1094 | * the RIB */ | |
1095 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
09a484dd | 1096 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); |
d62a17ae | 1097 | |
88493076 | 1098 | /* If the route's source is EVPN, flag as such. */ |
1099 | if (is_route_parent_evpn(info)) | |
90264d64 | 1100 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1101 | |
d62a17ae | 1102 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1103 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1104 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1105 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1106 | } |
a39275d7 | 1107 | |
d62a17ae | 1108 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1109 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1110 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1111 | ||
4e8b02f4 | 1112 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1113 | |
2ad4f093 RW |
1114 | /* Metric is currently based on the best-path only */ |
1115 | metric = info->attr->med; | |
1116 | for (mpinfo = info; mpinfo; mpinfo = bgp_info_mpath_next(mpinfo)) { | |
a74e593b RW |
1117 | if (valid_nh_count >= multipath_num) |
1118 | break; | |
1119 | ||
b4cb15c6 DL |
1120 | *mpinfo_cp = *mpinfo; |
1121 | ||
d0d695f4 RW |
1122 | /* Get nexthop address-family */ |
1123 | if (p->family == AF_INET | |
1124 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1125 | nh_family = AF_INET; | |
1126 | else if (p->family == AF_INET6 | |
1127 | || (p->family == AF_INET | |
1128 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1129 | nh_family = AF_INET6; | |
1130 | else | |
1131 | continue; | |
1132 | ||
1374aec9 | 1133 | api_nh = &api.nexthops[valid_nh_count]; |
a12495e7 DS |
1134 | api_nh->vrf_id = nh_othervrf ? info->extra->bgp_orig->vrf_id |
1135 | : bgp->vrf_id; | |
2ad4f093 RW |
1136 | if (nh_family == AF_INET) { |
1137 | struct in_addr *nexthop; | |
d62a17ae | 1138 | |
ddb5b488 | 1139 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1140 | if (mpinfo->extra) { |
1141 | zlog_debug( | |
1142 | "%s: p=%s, bgp_is_valid_label: %d", | |
1143 | __func__, buf_prefix, | |
1144 | bgp_is_valid_label( | |
1145 | &mpinfo->extra | |
1146 | ->label[0])); | |
1147 | } else { | |
1148 | zlog_debug( | |
1149 | "%s: p=%s, extra is NULL, no label", | |
1150 | __func__, buf_prefix); | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | if (bgp->table_map[afi][safi].name || nh_othervrf) { | |
d62a17ae | 1155 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1156 | apply doesn't modify the BGP route info. */ |
1157 | local_attr = *mpinfo->attr; | |
1158 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1159 | if (nh_othervrf) { |
1160 | /* allow route-map to modify */ | |
1161 | local_attr.nexthop = | |
1162 | info->extra->nexthop_orig.u | |
1163 | .prefix4; | |
1164 | } | |
1165 | } | |
b4cb15c6 | 1166 | |
ddb5b488 | 1167 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1168 | if (!bgp_table_map_apply( |
d62a17ae | 1169 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1170 | mpinfo_cp)) |
1171 | continue; | |
1172 | ||
1173 | /* metric/tag is only allowed to be | |
1174 | * overridden on 1st nexthop */ | |
1175 | if (mpinfo == info) { | |
1176 | metric = mpinfo_cp->attr->med; | |
1177 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1178 | } |
b4cb15c6 | 1179 | } |
d62a17ae | 1180 | |
b4cb15c6 | 1181 | nexthop = &mpinfo_cp->attr->nexthop; |
9913029c | 1182 | api_nh->gate.ipv4 = *nexthop; |
a12495e7 | 1183 | |
d3135ba3 | 1184 | /* EVPN type-2 routes are |
523cafc4 | 1185 | programmed as onlink on l3-vni SVI |
1186 | */ | |
90264d64 | 1187 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) |
d3135ba3 | 1188 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
1189 | else | |
1190 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
2ad4f093 RW |
1191 | } else { |
1192 | ifindex_t ifindex; | |
1193 | struct in6_addr *nexthop; | |
9913029c | 1194 | |
d62a17ae | 1195 | ifindex = 0; |
d62a17ae | 1196 | |
ddb5b488 PZ |
1197 | if (bgp->table_map[afi][safi].name || nh_othervrf) { |
1198 | /* Copy info and attributes, so the route-map | |
1199 | apply doesn't modify the BGP route info. */ | |
1200 | local_attr = *mpinfo->attr; | |
1201 | mpinfo_cp->attr = &local_attr; | |
1202 | if (nh_othervrf) { | |
1203 | /* allow route-map to modify */ | |
1204 | local_attr.mp_nexthop_global = | |
1205 | info->extra->nexthop_orig.u | |
1206 | .prefix6; | |
1207 | local_attr.mp_nexthop_len = | |
1208 | BGP_ATTR_NHLEN_IPV6_GLOBAL; | |
1209 | } | |
1210 | } | |
1211 | ||
d62a17ae | 1212 | if (bgp->table_map[afi][safi].name) { |
1213 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1214 | apply doesn't modify the BGP route info. */ |
1215 | local_attr = *mpinfo->attr; | |
1216 | mpinfo_cp->attr = &local_attr; | |
1217 | ||
1218 | if (!bgp_table_map_apply( | |
d62a17ae | 1219 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1220 | mpinfo_cp)) |
1221 | continue; | |
1222 | ||
1223 | /* metric/tag is only allowed to be | |
1224 | * overridden on 1st nexthop */ | |
1225 | if (mpinfo == info) { | |
1226 | metric = mpinfo_cp->attr->med; | |
1227 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1228 | } |
b4cb15c6 DL |
1229 | } |
1230 | nexthop = bgp_info_to_ipv6_nexthop(mpinfo_cp); | |
d62a17ae | 1231 | |
1232 | if ((mpinfo == info) | |
1233 | && mpinfo->attr->mp_nexthop_len | |
1234 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1235 | if (mpinfo->peer->nexthop.ifp) | |
1236 | ifindex = mpinfo->peer->nexthop.ifp | |
1237 | ->ifindex; | |
1238 | ||
1239 | if (!ifindex) { | |
afb6d3f5 DS |
1240 | if (mpinfo->peer->conf_if) |
1241 | ifindex = mpinfo->peer->ifp->ifindex; | |
1242 | else if (mpinfo->peer->ifname) | |
d62a17ae | 1243 | ifindex = ifname2ifindex( |
afb6d3f5 | 1244 | mpinfo->peer->ifname, |
d62a17ae | 1245 | bgp->vrf_id); |
1246 | else if (mpinfo->peer->nexthop.ifp) | |
1247 | ifindex = mpinfo->peer->nexthop.ifp | |
1248 | ->ifindex; | |
1249 | } | |
d4f8783d DS |
1250 | |
1251 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1252 | if (ifindex == 0) | |
1253 | continue; | |
1254 | } else | |
1255 | ifindex = 0; | |
d62a17ae | 1256 | |
9913029c RW |
1257 | api_nh->gate.ipv6 = *nexthop; |
1258 | api_nh->ifindex = ifindex; | |
d4f8783d DS |
1259 | api_nh->type = ifindex ? NEXTHOP_TYPE_IPV6_IFINDEX |
1260 | : NEXTHOP_TYPE_IPV6; | |
2ad4f093 | 1261 | } |
d62a17ae | 1262 | |
a4d82a8a PZ |
1263 | if (mpinfo->extra |
1264 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1265 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1266 | has_valid_label = 1; |
b57ba6d2 | 1267 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1268 | |
2ad4f093 RW |
1269 | api_nh->label_num = 1; |
1270 | api_nh->labels[0] = label; | |
d62a17ae | 1271 | } |
2ad4f093 RW |
1272 | valid_nh_count++; |
1273 | } | |
d62a17ae | 1274 | |
a89b49cc | 1275 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1276 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1277 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1278 | |
09a484dd | 1279 | if (info->sub_type != BGP_ROUTE_AGGREGATE) |
2ad4f093 | 1280 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1281 | |
2ad4f093 RW |
1282 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1283 | api.metric = metric; | |
d62a17ae | 1284 | |
2ad4f093 RW |
1285 | if (tag) { |
1286 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1287 | api.tag = tag; | |
1288 | } | |
d62a17ae | 1289 | |
2ad4f093 RW |
1290 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1291 | if (distance) { | |
1292 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1293 | api.distance = distance; | |
1294 | } | |
d62a17ae | 1295 | |
2ad4f093 RW |
1296 | if (bgp_debug_zebra(p)) { |
1297 | char prefix_buf[PREFIX_STRLEN]; | |
1298 | char nh_buf[INET6_ADDRSTRLEN]; | |
1299 | char label_buf[20]; | |
1300 | int i; | |
1301 | ||
1302 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1303 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1304 | " count %d", | |
1305 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1306 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1307 | for (i = 0; i < api.nexthop_num; i++) { | |
1308 | api_nh = &api.nexthops[i]; | |
1309 | ||
d0d695f4 RW |
1310 | if (api_nh->type == NEXTHOP_TYPE_IPV4) |
1311 | nh_family = AF_INET; | |
1312 | else | |
1313 | nh_family = AF_INET6; | |
2ad4f093 RW |
1314 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1315 | sizeof(nh_buf)); | |
1316 | ||
1317 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1318 | if (has_valid_label |
1319 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1320 | sprintf(label_buf, "label %u", |
1321 | api_nh->labels[0]); | |
1322 | zlog_debug(" nhop [%d]: %s %s", i + 1, nh_buf, | |
1323 | label_buf); | |
d62a17ae | 1324 | } |
1325 | } | |
2ad4f093 | 1326 | |
960035b2 PZ |
1327 | if (bgp_debug_zebra(p)) { |
1328 | int recursion_flag = 0; | |
1329 | ||
1330 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1331 | recursion_flag = 1; | |
1332 | ||
1333 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1334 | __func__, buf_prefix, | |
1335 | (recursion_flag ? "" : "NOT ")); | |
1336 | } | |
2ad4f093 RW |
1337 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1338 | : ZEBRA_ROUTE_DELETE, | |
1339 | zclient, &api); | |
718e3744 | 1340 | } |
1341 | ||
73ac8160 | 1342 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1343 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1344 | { |
d62a17ae | 1345 | struct bgp_node *rn; |
1346 | struct bgp_table *table; | |
1347 | struct bgp_info *ri; | |
1348 | ||
1349 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1350 | * know of this instance. | |
1351 | */ | |
1352 | if (!bgp_install_info_to_zebra(bgp)) | |
1353 | return; | |
1354 | ||
1355 | table = bgp->rib[afi][safi]; | |
1356 | if (!table) | |
1357 | return; | |
1358 | ||
1359 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
1360 | for (ri = rn->info; ri; ri = ri->next) | |
ddb5b488 PZ |
1361 | if (CHECK_FLAG(ri->flags, BGP_INFO_SELECTED) && |
1362 | ||
1363 | (ri->type == ZEBRA_ROUTE_BGP | |
1364 | && (ri->sub_type == BGP_ROUTE_NORMAL | |
1365 | || ri->sub_type == BGP_ROUTE_IMPORTED))) | |
1366 | ||
d62a17ae | 1367 | bgp_zebra_announce(rn, &rn->p, ri, bgp, afi, |
1368 | safi); | |
73ac8160 DS |
1369 | } |
1370 | ||
568e10ca | 1371 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_info *info, |
1372 | struct bgp *bgp, safi_t safi) | |
718e3744 | 1373 | { |
2ad4f093 | 1374 | struct zapi_route api; |
ddb5b488 | 1375 | |
d62a17ae | 1376 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1377 | * know of this instance. | |
1378 | */ | |
568e10ca | 1379 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1380 | return; |
1381 | ||
2ad4f093 | 1382 | memset(&api, 0, sizeof(api)); |
01740ff4 | 1383 | memcpy(&api.rmac, &(info->attr->rmac), sizeof(struct ethaddr)); |
568e10ca | 1384 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1385 | api.type = ZEBRA_ROUTE_BGP; |
1386 | api.safi = safi; | |
1387 | api.prefix = *p; | |
d62a17ae | 1388 | |
88493076 | 1389 | /* If the route's source is EVPN, flag as such. */ |
1390 | if (is_route_parent_evpn(info)) | |
90264d64 | 1391 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1392 | |
2ad4f093 RW |
1393 | if (bgp_debug_zebra(p)) { |
1394 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1395 | |
2ad4f093 | 1396 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1397 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1398 | } |
d62a17ae | 1399 | |
2ad4f093 | 1400 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1401 | } |
56c1f7d8 | 1402 | |
d7c0a89a QY |
1403 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1404 | unsigned short instance) | |
7c8ff89e | 1405 | { |
d62a17ae | 1406 | struct list *red_list; |
1407 | struct listnode *node; | |
1408 | struct bgp_redist *red; | |
7c8ff89e | 1409 | |
d62a17ae | 1410 | red_list = bgp->redist[afi][type]; |
1411 | if (!red_list) | |
1412 | return (NULL); | |
7c8ff89e | 1413 | |
d62a17ae | 1414 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1415 | if (red->instance == instance) | |
1416 | return red; | |
7c8ff89e | 1417 | |
d62a17ae | 1418 | return NULL; |
7c8ff89e DS |
1419 | } |
1420 | ||
d7c0a89a QY |
1421 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1422 | unsigned short instance) | |
7c8ff89e | 1423 | { |
d62a17ae | 1424 | struct list *red_list; |
1425 | struct bgp_redist *red; | |
7c8ff89e | 1426 | |
d62a17ae | 1427 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1428 | if (red) | |
1429 | return red; | |
7c8ff89e | 1430 | |
d62a17ae | 1431 | if (!bgp->redist[afi][type]) |
1432 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1433 | |
d62a17ae | 1434 | red_list = bgp->redist[afi][type]; |
1435 | red = (struct bgp_redist *)XCALLOC(MTYPE_BGP_REDIST, | |
1436 | sizeof(struct bgp_redist)); | |
1437 | red->instance = instance; | |
7c8ff89e | 1438 | |
d62a17ae | 1439 | listnode_add(red_list, red); |
7c8ff89e | 1440 | |
d62a17ae | 1441 | return red; |
7c8ff89e DS |
1442 | } |
1443 | ||
d7c0a89a QY |
1444 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1445 | unsigned short instance) | |
7c8ff89e | 1446 | { |
d62a17ae | 1447 | struct bgp_redist *red; |
1448 | ||
1449 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1450 | ||
1451 | if (red) { | |
1452 | listnode_delete(bgp->redist[afi][type], red); | |
1453 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 DS |
1454 | if (!bgp->redist[afi][type]->count) |
1455 | list_delete_and_null(&bgp->redist[afi][type]); | |
d62a17ae | 1456 | } |
7c8ff89e | 1457 | } |
6b0655a2 | 1458 | |
718e3744 | 1459 | /* Other routes redistribution into BGP. */ |
d7c0a89a QY |
1460 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
1461 | unsigned short instance) | |
718e3744 | 1462 | { |
718e3744 | 1463 | |
d62a17ae | 1464 | /* Return if already redistribute flag is set. */ |
1465 | if (instance) { | |
1466 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1467 | instance)) | |
1468 | return CMD_WARNING; | |
718e3744 | 1469 | |
d62a17ae | 1470 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1471 | } else { | |
1472 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1473 | return CMD_WARNING; | |
7076bb2f | 1474 | |
65efcfce | 1475 | #if ENABLE_BGP_VNC |
d62a17ae | 1476 | if (bgp->vrf_id == VRF_DEFAULT |
1477 | && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1478 | vnc_export_bgp_enable( | |
1479 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1480 | } | |
65efcfce LB |
1481 | #endif |
1482 | ||
d62a17ae | 1483 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1484 | } | |
718e3744 | 1485 | |
ea12cf11 DS |
1486 | /* |
1487 | * Don't try to register if we're not connected to Zebra or Zebra | |
1488 | * doesn't know of this instance. | |
1489 | * | |
1490 | * When we come up later well resend if needed. | |
d62a17ae | 1491 | */ |
1492 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1493 | return CMD_SUCCESS; |
a39275d7 | 1494 | |
d62a17ae | 1495 | if (BGP_DEBUG(zebra, ZEBRA)) |
1496 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1497 | bgp->vrf_id, afi, zebra_route_string(type), | |
1498 | instance); | |
518f0eb1 | 1499 | |
d62a17ae | 1500 | /* Send distribute add message to zebra. */ |
1501 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1502 | instance, bgp->vrf_id); | |
718e3744 | 1503 | |
d62a17ae | 1504 | return CMD_SUCCESS; |
718e3744 | 1505 | } |
1506 | ||
d62a17ae | 1507 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1508 | unsigned short instance) |
518f0eb1 | 1509 | { |
d62a17ae | 1510 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1511 | * know of this instance. | |
1512 | */ | |
1513 | if (!bgp_install_info_to_zebra(bgp)) | |
1514 | return -1; | |
1515 | ||
1516 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1517 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1518 | bgp->vrf_id, afi, zebra_route_string(type), | |
1519 | instance); | |
1520 | ||
1521 | /* Send distribute add message to zebra. */ | |
1522 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1523 | instance, bgp->vrf_id); | |
1524 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1525 | instance, bgp->vrf_id); | |
1526 | ||
1527 | return 0; | |
518f0eb1 DS |
1528 | } |
1529 | ||
718e3744 | 1530 | /* Redistribute with route-map specification. */ |
d62a17ae | 1531 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name) |
718e3744 | 1532 | { |
d62a17ae | 1533 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1534 | return 0; | |
718e3744 | 1535 | |
d62a17ae | 1536 | if (red->rmap.name) |
1537 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1538 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
1539 | red->rmap.map = route_map_lookup_by_name(name); | |
718e3744 | 1540 | |
d62a17ae | 1541 | return 1; |
718e3744 | 1542 | } |
1543 | ||
1544 | /* Redistribute with metric specification. */ | |
d62a17ae | 1545 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
d7c0a89a | 1546 | afi_t afi, int type, uint32_t metric) |
718e3744 | 1547 | { |
d62a17ae | 1548 | struct bgp_node *rn; |
1549 | struct bgp_info *ri; | |
1550 | ||
1551 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1552 | return 0; | |
1553 | ||
1554 | red->redist_metric_flag = 1; | |
1555 | red->redist_metric = metric; | |
1556 | ||
1557 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1558 | rn = bgp_route_next(rn)) { | |
1559 | for (ri = rn->info; ri; ri = ri->next) { | |
1560 | if (ri->sub_type == BGP_ROUTE_REDISTRIBUTE | |
1561 | && ri->type == type | |
1562 | && ri->instance == red->instance) { | |
1563 | struct attr *old_attr; | |
1564 | struct attr new_attr; | |
1565 | ||
1566 | bgp_attr_dup(&new_attr, ri->attr); | |
1567 | new_attr.med = red->redist_metric; | |
1568 | old_attr = ri->attr; | |
1569 | ri->attr = bgp_attr_intern(&new_attr); | |
1570 | bgp_attr_unintern(&old_attr); | |
1571 | ||
1572 | bgp_info_set_flag(rn, ri, | |
1573 | BGP_INFO_ATTR_CHANGED); | |
1574 | bgp_process(bgp, rn, afi, SAFI_UNICAST); | |
1575 | } | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | return 1; | |
718e3744 | 1580 | } |
1581 | ||
1582 | /* Unset redistribution. */ | |
d62a17ae | 1583 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1584 | unsigned short instance) |
718e3744 | 1585 | { |
d62a17ae | 1586 | struct bgp_redist *red; |
1587 | ||
1588 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1589 | if (!red) | |
1590 | return CMD_SUCCESS; | |
1591 | ||
1592 | /* Return if zebra connection is disabled. */ | |
1593 | if (instance) { | |
1594 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1595 | instance)) | |
1596 | return CMD_WARNING; | |
1597 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1598 | } else { | |
1599 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1600 | return CMD_WARNING; | |
1601 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1602 | } | |
718e3744 | 1603 | |
65efcfce | 1604 | |
d62a17ae | 1605 | if (bgp_install_info_to_zebra(bgp)) { |
1606 | /* Send distribute delete message to zebra. */ | |
1607 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1608 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1609 | bgp->vrf_id, afi, zebra_route_string(type), | |
1610 | instance); | |
1611 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1612 | type, instance, bgp->vrf_id); | |
1613 | } | |
1614 | ||
1615 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1616 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1617 | ||
1618 | return CMD_SUCCESS; | |
718e3744 | 1619 | } |
1620 | ||
6aeb9e78 | 1621 | /* Unset redistribution. */ |
d62a17ae | 1622 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1623 | unsigned short instance) |
6aeb9e78 | 1624 | { |
d62a17ae | 1625 | struct bgp_redist *red; |
6aeb9e78 | 1626 | |
ddb5b488 PZ |
1627 | /* |
1628 | * vnc and vpn->vrf checks must be before red check because | |
1629 | * they operate within bgpd irrespective of zebra connection | |
1630 | * status. red lookup fails if there is no zebra connection. | |
1631 | */ | |
1632 | #if ENABLE_BGP_VNC | |
1633 | if (bgp->vrf_id == VRF_DEFAULT && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1634 | vnc_export_bgp_disable(bgp, afi); | |
1635 | } | |
1636 | #endif | |
ddb5b488 | 1637 | |
d62a17ae | 1638 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1639 | if (!red) | |
1640 | return CMD_SUCCESS; | |
6aeb9e78 | 1641 | |
d62a17ae | 1642 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1643 | |
d62a17ae | 1644 | /* Unset route-map. */ |
1645 | if (red->rmap.name) | |
1646 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1647 | red->rmap.name = NULL; | |
1648 | red->rmap.map = NULL; | |
6aeb9e78 | 1649 | |
d62a17ae | 1650 | /* Unset metric. */ |
1651 | red->redist_metric_flag = 0; | |
1652 | red->redist_metric = 0; | |
6aeb9e78 | 1653 | |
d62a17ae | 1654 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1655 | |
d62a17ae | 1656 | return CMD_SUCCESS; |
6aeb9e78 DS |
1657 | } |
1658 | ||
eb117f29 SK |
1659 | /* Update redistribute vrf bitmap during triggers like |
1660 | restart networking or delete/add VRFs */ | |
d62a17ae | 1661 | void bgp_update_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) |
eb117f29 | 1662 | { |
d62a17ae | 1663 | int i; |
1664 | afi_t afi; | |
1665 | ||
1666 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1667 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
48c74f88 DS |
1668 | if ((old_vrf_id == VRF_UNKNOWN) |
1669 | || vrf_bitmap_check(zclient->redist[afi][i], | |
1670 | old_vrf_id)) { | |
d62a17ae | 1671 | vrf_bitmap_unset(zclient->redist[afi][i], |
1672 | old_vrf_id); | |
1673 | vrf_bitmap_set(zclient->redist[afi][i], | |
1674 | bgp->vrf_id); | |
1675 | } | |
1676 | return; | |
eb117f29 SK |
1677 | } |
1678 | ||
d62a17ae | 1679 | void bgp_zclient_reset(void) |
718e3744 | 1680 | { |
d62a17ae | 1681 | zclient_reset(zclient); |
718e3744 | 1682 | } |
1683 | ||
ad4cbda1 | 1684 | /* Register this instance with Zebra. Invoked upon connect (for |
1685 | * default instance) and when other VRFs are learnt (or created and | |
1686 | * already learnt). | |
1687 | */ | |
d62a17ae | 1688 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1689 | { |
d62a17ae | 1690 | /* Don't try to register if we're not connected to Zebra */ |
1691 | if (!zclient || zclient->sock < 0) | |
1692 | return; | |
ad4cbda1 | 1693 | |
d62a17ae | 1694 | if (BGP_DEBUG(zebra, ZEBRA)) |
1695 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1696 | |
d62a17ae | 1697 | /* Register for router-id, interfaces, redistributed routes. */ |
1698 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1699 | |
d62a17ae | 1700 | /* For default instance, register to learn about VNIs, if appropriate. |
1701 | */ | |
a4d82a8a | 1702 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1703 | bgp_zebra_advertise_all_vni(bgp, 1); |
ad4cbda1 | 1704 | } |
1705 | ||
1706 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1707 | * being deleted (default or VRF) and it is already registered. | |
1708 | */ | |
d62a17ae | 1709 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1710 | { |
d62a17ae | 1711 | /* Don't try to deregister if we're not connected to Zebra */ |
1712 | if (zclient->sock < 0) | |
1713 | return; | |
ad4cbda1 | 1714 | |
d62a17ae | 1715 | if (BGP_DEBUG(zebra, ZEBRA)) |
1716 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1717 | |
d62a17ae | 1718 | /* For default instance, unregister learning about VNIs, if appropriate. |
1719 | */ | |
a4d82a8a | 1720 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1721 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1722 | |
d62a17ae | 1723 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1724 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1725 | } |
1726 | ||
d62a17ae | 1727 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1728 | { |
d62a17ae | 1729 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1730 | |
d62a17ae | 1731 | /* Don't try to initiate if we're not connected to Zebra */ |
1732 | if (zclient->sock < 0) | |
1733 | return; | |
4a04e5f7 | 1734 | |
d62a17ae | 1735 | if (BGP_DEBUG(zebra, ZEBRA)) |
1736 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1737 | peer->host); | |
4a04e5f7 | 1738 | |
d62a17ae | 1739 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1740 | ra_interval); | |
4a04e5f7 | 1741 | } |
1742 | ||
d62a17ae | 1743 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1744 | { |
d62a17ae | 1745 | /* Don't try to terminate if we're not connected to Zebra */ |
1746 | if (zclient->sock < 0) | |
1747 | return; | |
4a04e5f7 | 1748 | |
d62a17ae | 1749 | if (BGP_DEBUG(zebra, ZEBRA)) |
1750 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1751 | peer->host); | |
4a04e5f7 | 1752 | |
d62a17ae | 1753 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1754 | } |
1755 | ||
31310b25 MK |
1756 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1757 | { | |
1758 | struct stream *s = NULL; | |
1759 | ||
1760 | /* Check socket. */ | |
1761 | if (!zclient || zclient->sock < 0) | |
1762 | return 0; | |
1763 | ||
1764 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1765 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1766 | return 0; | |
1767 | ||
1768 | s = zclient->obuf; | |
1769 | stream_reset(s); | |
1770 | ||
1771 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1772 | stream_putc(s, advertise); | |
1773 | stream_put3(s, vni); | |
1774 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1775 | ||
1776 | return zclient_send_message(zclient); | |
1777 | } | |
1778 | ||
1a98c087 MK |
1779 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1780 | { | |
1781 | struct stream *s = NULL; | |
1782 | ||
1783 | /* Check socket. */ | |
1784 | if (!zclient || zclient->sock < 0) | |
1785 | return 0; | |
1786 | ||
1787 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1788 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1789 | return 0; | |
1790 | ||
1791 | s = zclient->obuf; | |
1792 | stream_reset(s); | |
1793 | ||
1794 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
1795 | stream_putc(s, advertise); | |
1796 | stream_put3(s, vni); | |
1797 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1798 | ||
1799 | return zclient_send_message(zclient); | |
1800 | } | |
1801 | ||
d62a17ae | 1802 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 1803 | { |
d62a17ae | 1804 | struct stream *s; |
7724c0a1 | 1805 | |
d62a17ae | 1806 | /* Check socket. */ |
1807 | if (!zclient || zclient->sock < 0) | |
1808 | return 0; | |
7724c0a1 | 1809 | |
d62a17ae | 1810 | /* Don't try to register if Zebra doesn't know of this instance. */ |
1811 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1812 | return 0; | |
7724c0a1 | 1813 | |
d62a17ae | 1814 | s = zclient->obuf; |
1815 | stream_reset(s); | |
7724c0a1 | 1816 | |
d62a17ae | 1817 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
1818 | stream_putc(s, advertise); | |
1819 | stream_putw_at(s, 0, stream_get_endp(s)); | |
7724c0a1 | 1820 | |
d62a17ae | 1821 | return zclient_send_message(zclient); |
7724c0a1 | 1822 | } |
1823 | ||
ad4cbda1 | 1824 | /* BGP has established connection with Zebra. */ |
d62a17ae | 1825 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 1826 | { |
d62a17ae | 1827 | struct bgp *bgp; |
7076bb2f | 1828 | |
d62a17ae | 1829 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 1830 | |
d62a17ae | 1831 | /* At this point, we may or may not have BGP instances configured, but |
1832 | * we're only interested in the default VRF (others wouldn't have learnt | |
1833 | * the VRF from Zebra yet.) | |
1834 | */ | |
1835 | bgp = bgp_get_default(); | |
1836 | if (!bgp) | |
1837 | return; | |
ad4cbda1 | 1838 | |
d62a17ae | 1839 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 1840 | |
d62a17ae | 1841 | /* Send the client registration */ |
1842 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER); | |
2376c3f2 | 1843 | |
955bfd98 | 1844 | /* tell label pool that zebra is connected */ |
e70e9f8e | 1845 | bgp_lp_event_zebra_up(); |
955bfd98 | 1846 | |
d62a17ae | 1847 | /* TODO - What if we have peers and networks configured, do we have to |
1848 | * kick-start them? | |
1849 | */ | |
7076bb2f FL |
1850 | } |
1851 | ||
fe1dc5a3 MK |
1852 | static int bgp_zebra_process_local_l3vni(int cmd, struct zclient *zclient, |
1853 | zebra_size_t length, vrf_id_t vrf_id) | |
1854 | { | |
c48d9f5f | 1855 | int filter = 0; |
fe1dc5a3 | 1856 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 1857 | vni_t l3vni = 0; |
fe1dc5a3 | 1858 | struct ethaddr rmac; |
b67a60d2 | 1859 | struct in_addr originator_ip; |
fe1dc5a3 MK |
1860 | struct stream *s; |
1861 | ||
1862 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
b67a60d2 | 1863 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
1864 | s = zclient->ibuf; |
1865 | l3vni = stream_getl(s); | |
b67a60d2 | 1866 | if (cmd == ZEBRA_L3VNI_ADD) { |
fe1dc5a3 | 1867 | stream_get(&rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 1868 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 1869 | stream_get(&filter, s, sizeof(int)); |
b67a60d2 | 1870 | } |
fe1dc5a3 MK |
1871 | |
1872 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c48d9f5f | 1873 | zlog_debug("Rx L3-VNI %s VRF %s VNI %u RMAC %s filter %s", |
fe1dc5a3 | 1874 | (cmd == ZEBRA_L3VNI_ADD) ? "add" : "del", |
996c9314 | 1875 | vrf_id_to_name(vrf_id), l3vni, |
c48d9f5f MK |
1876 | prefix_mac2str(&rmac, buf, sizeof(buf)), |
1877 | filter ? "prefix-routes-only" : "none"); | |
fe1dc5a3 MK |
1878 | |
1879 | if (cmd == ZEBRA_L3VNI_ADD) | |
c48d9f5f MK |
1880 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &rmac, originator_ip, |
1881 | filter); | |
fe1dc5a3 MK |
1882 | else |
1883 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); | |
1884 | ||
1885 | return 0; | |
1886 | } | |
1887 | ||
d62a17ae | 1888 | static int bgp_zebra_process_local_vni(int command, struct zclient *zclient, |
1889 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 1890 | { |
d62a17ae | 1891 | struct stream *s; |
1892 | vni_t vni; | |
1893 | struct bgp *bgp; | |
a4d82a8a | 1894 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 1895 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
d62a17ae | 1896 | |
1897 | s = zclient->ibuf; | |
1898 | vni = stream_getl(s); | |
29c53922 | 1899 | if (command == ZEBRA_VNI_ADD) { |
d62a17ae | 1900 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 MK |
1901 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
1902 | } | |
1903 | ||
d62a17ae | 1904 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
1905 | if (!bgp) | |
1906 | return 0; | |
1907 | ||
1908 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 MK |
1909 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
1910 | (command == ZEBRA_VNI_ADD) ? "add" : "del", | |
a4d82a8a PZ |
1911 | vrf_id_to_name(vrf_id), vni, |
1912 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 1913 | |
1914 | if (command == ZEBRA_VNI_ADD) | |
1915 | return bgp_evpn_local_vni_add( | |
29c53922 MK |
1916 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
1917 | tenant_vrf_id); | |
d62a17ae | 1918 | else |
1919 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 1920 | } |
1921 | ||
d62a17ae | 1922 | static int bgp_zebra_process_local_macip(int command, struct zclient *zclient, |
1923 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 1924 | { |
d62a17ae | 1925 | struct stream *s; |
1926 | vni_t vni; | |
1927 | struct bgp *bgp; | |
1928 | struct ethaddr mac; | |
1929 | struct ipaddr ip; | |
1930 | int ipa_len; | |
1931 | char buf[ETHER_ADDR_STRLEN]; | |
1932 | char buf1[INET6_ADDRSTRLEN]; | |
d7c0a89a | 1933 | uint8_t flags; |
d62a17ae | 1934 | |
1935 | memset(&ip, 0, sizeof(ip)); | |
1936 | s = zclient->ibuf; | |
1937 | vni = stream_getl(s); | |
28328ea9 | 1938 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 1939 | ipa_len = stream_getl(s); |
1940 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
1941 | && ipa_len != IPV6_MAX_BYTELEN) { | |
1942 | zlog_err("%u:Recv MACIP %s with invalid IP addr length %d", | |
1943 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
1944 | ipa_len); | |
1945 | return -1; | |
1946 | } | |
1947 | ||
1948 | if (ipa_len) { | |
1949 | ip.ipa_type = | |
1950 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
1951 | stream_get(&ip.ip.addr, s, ipa_len); | |
1952 | } | |
1a98c087 | 1953 | flags = stream_getc(s); |
d62a17ae | 1954 | |
1955 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
1956 | if (!bgp) | |
1957 | return 0; | |
1958 | ||
1959 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1a98c087 MK |
1960 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u", |
1961 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
1962 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), | |
d62a17ae | 1963 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni); |
1964 | ||
1965 | if (command == ZEBRA_MACIP_ADD) | |
1a98c087 | 1966 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, flags); |
d62a17ae | 1967 | else |
1968 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip); | |
128ea8ab | 1969 | } |
6aeb9e78 | 1970 | |
a4d82a8a | 1971 | static void bgp_zebra_process_local_ip_prefix(int cmd, struct zclient *zclient, |
31310b25 MK |
1972 | zebra_size_t length, |
1973 | vrf_id_t vrf_id) | |
1974 | { | |
1975 | struct stream *s = NULL; | |
1976 | struct bgp *bgp_vrf = NULL; | |
1977 | struct prefix p; | |
1978 | char buf[PREFIX_STRLEN]; | |
1979 | ||
1980 | memset(&p, 0, sizeof(struct prefix)); | |
1981 | s = zclient->ibuf; | |
1982 | stream_get(&p, s, sizeof(struct prefix)); | |
1983 | ||
1984 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
1985 | if (!bgp_vrf) | |
1986 | return; | |
1987 | ||
1988 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1989 | zlog_debug("Recv prefix %s %s on vrf %s", | |
1990 | prefix2str(&p, buf, sizeof(buf)), | |
1991 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
1992 | vrf_id_to_name(vrf_id)); | |
1993 | ||
1994 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
1995 | ||
1996 | if (p.family == AF_INET) | |
a4d82a8a PZ |
1997 | return bgp_evpn_advertise_type5_route( |
1998 | bgp_vrf, &p, NULL, AFI_IP, SAFI_UNICAST); | |
31310b25 | 1999 | else |
a4d82a8a PZ |
2000 | return bgp_evpn_advertise_type5_route( |
2001 | bgp_vrf, &p, NULL, AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2002 | |
2003 | } else { | |
2004 | if (p.family == AF_INET) | |
a4d82a8a PZ |
2005 | return bgp_evpn_withdraw_type5_route( |
2006 | bgp_vrf, &p, AFI_IP, SAFI_UNICAST); | |
31310b25 | 2007 | else |
a4d82a8a PZ |
2008 | return bgp_evpn_withdraw_type5_route( |
2009 | bgp_vrf, &p, AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2010 | } |
2011 | } | |
2012 | ||
955bfd98 PZ |
2013 | static void bgp_zebra_process_label_chunk( |
2014 | int cmd, | |
2015 | struct zclient *zclient, | |
2016 | zebra_size_t length, | |
2017 | vrf_id_t vrf_id) | |
2018 | { | |
2019 | struct stream *s = NULL; | |
2020 | uint8_t response_keep; | |
2021 | uint32_t first; | |
2022 | uint32_t last; | |
2023 | ||
2024 | s = zclient->ibuf; | |
2025 | STREAM_GETC(s, response_keep); | |
2026 | STREAM_GETL(s, first); | |
2027 | STREAM_GETL(s, last); | |
2028 | ||
2029 | if (first > last || | |
2030 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2031 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2032 | ||
2033 | zlog_err("%s: Invalid Label chunk: %u - %u", | |
2034 | __func__, first, last); | |
2035 | return; | |
2036 | } | |
2037 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2038 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2039 | first, last, response_keep); | |
2040 | } | |
2041 | ||
e70e9f8e | 2042 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2043 | |
2044 | stream_failure: /* for STREAM_GETX */ | |
2045 | return; | |
2046 | } | |
2047 | ||
342213ea DS |
2048 | extern struct zebra_privs_t bgpd_privs; |
2049 | ||
d62a17ae | 2050 | void bgp_zebra_init(struct thread_master *master) |
718e3744 | 2051 | { |
d62a17ae | 2052 | zclient_num_connects = 0; |
2053 | ||
2054 | /* Set default values. */ | |
e1a1880d | 2055 | zclient = zclient_new_notify(master, &zclient_options_default); |
342213ea | 2056 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2057 | zclient->zebra_connected = bgp_zebra_connected; |
2058 | zclient->router_id_update = bgp_router_id_update; | |
2059 | zclient->interface_add = bgp_interface_add; | |
2060 | zclient->interface_delete = bgp_interface_delete; | |
2061 | zclient->interface_address_add = bgp_interface_address_add; | |
2062 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2063 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2064 | zclient->interface_nbr_address_delete = | |
2065 | bgp_interface_nbr_address_delete; | |
2066 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2067 | zclient->redistribute_route_add = zebra_read_route; |
2068 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2069 | zclient->interface_up = bgp_interface_up; |
2070 | zclient->interface_down = bgp_interface_down; | |
d62a17ae | 2071 | zclient->nexthop_update = bgp_read_nexthop_update; |
2072 | zclient->import_check_update = bgp_read_import_check_update; | |
2073 | zclient->fec_update = bgp_read_fec_update; | |
2074 | zclient->local_vni_add = bgp_zebra_process_local_vni; | |
2075 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
2076 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2077 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2078 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2079 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2080 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2081 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2082 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
718e3744 | 2083 | } |
bb86c601 | 2084 | |
d62a17ae | 2085 | void bgp_zebra_destroy(void) |
bb86c601 | 2086 | { |
d62a17ae | 2087 | if (zclient == NULL) |
2088 | return; | |
2089 | zclient_stop(zclient); | |
2090 | zclient_free(zclient); | |
2091 | zclient = NULL; | |
bb86c601 | 2092 | } |
afbb1c59 | 2093 | |
d62a17ae | 2094 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2095 | { |
d62a17ae | 2096 | return zclient_num_connects; |
afbb1c59 | 2097 | } |