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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" |
14454c9f | 47 | #include "bgpd/bgp_errors.h" |
8196f13d | 48 | #include "bgpd/bgp_mpath.h" |
fb018d25 | 49 | #include "bgpd/bgp_nexthop.h" |
ffd0c037 | 50 | #include "bgpd/bgp_nht.h" |
8c4f6381 | 51 | #include "bgpd/bgp_bfd.h" |
cd1964ff | 52 | #include "bgpd/bgp_label.h" |
65efcfce | 53 | #if ENABLE_BGP_VNC |
d62a17ae | 54 | #include "bgpd/rfapi/rfapi_backend.h" |
55 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 56 | #endif |
128ea8ab | 57 | #include "bgpd/bgp_evpn.h" |
ddb5b488 | 58 | #include "bgpd/bgp_mplsvpn.h" |
955bfd98 | 59 | #include "bgpd/bgp_labelpool.h" |
30d50e6d | 60 | #include "bgpd/bgp_pbr.h" |
6b0655a2 | 61 | |
718e3744 | 62 | /* All information about zebra. */ |
228da428 | 63 | struct zclient *zclient = NULL; |
718e3744 | 64 | |
ad4cbda1 | 65 | /* Can we install into zebra? */ |
d62a17ae | 66 | static inline int bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 67 | { |
d62a17ae | 68 | if (zclient->sock <= 0) |
69 | return 0; | |
ad4cbda1 | 70 | |
d62a17ae | 71 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) |
72 | return 0; | |
ad4cbda1 | 73 | |
d62a17ae | 74 | return 1; |
ad4cbda1 | 75 | } |
76 | ||
afbb1c59 LB |
77 | int zclient_num_connects; |
78 | ||
18a6dce6 | 79 | /* Router-id update message from zebra. */ |
d62a17ae | 80 | static int bgp_router_id_update(int command, struct zclient *zclient, |
81 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 82 | { |
d62a17ae | 83 | struct prefix router_id; |
718e3744 | 84 | |
d62a17ae | 85 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 86 | |
d62a17ae | 87 | if (BGP_DEBUG(zebra, ZEBRA)) { |
88 | char buf[PREFIX2STR_BUFFER]; | |
89 | prefix2str(&router_id, buf, sizeof(buf)); | |
90 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
91 | } | |
a39275d7 | 92 | |
d62a17ae | 93 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
94 | return 0; | |
718e3744 | 95 | } |
96 | ||
fb018d25 | 97 | /* Nexthop update message from zebra. */ |
d62a17ae | 98 | static int bgp_read_nexthop_update(int command, struct zclient *zclient, |
99 | zebra_size_t length, vrf_id_t vrf_id) | |
fb018d25 | 100 | { |
d62a17ae | 101 | bgp_parse_nexthop_update(command, vrf_id); |
102 | return 0; | |
078430f6 DS |
103 | } |
104 | ||
d62a17ae | 105 | static int bgp_read_import_check_update(int command, struct zclient *zclient, |
106 | zebra_size_t length, vrf_id_t vrf_id) | |
078430f6 | 107 | { |
d62a17ae | 108 | bgp_parse_nexthop_update(command, vrf_id); |
109 | return 0; | |
fb018d25 DS |
110 | } |
111 | ||
4a04e5f7 | 112 | /* Set or clear interface on which unnumbered neighbor is configured. This |
113 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
114 | * interface. | |
115 | */ | |
d62a17ae | 116 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
117 | struct interface *upd_ifp) | |
4a04e5f7 | 118 | { |
d62a17ae | 119 | struct listnode *node, *nnode; |
120 | struct peer *peer; | |
121 | ||
122 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
123 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
124 | if (upd_ifp) { | |
125 | peer->ifp = upd_ifp; | |
126 | bgp_zebra_initiate_radv(bgp, peer); | |
127 | } else { | |
128 | bgp_zebra_terminate_radv(bgp, peer); | |
129 | peer->ifp = upd_ifp; | |
130 | } | |
131 | } | |
132 | } | |
4a04e5f7 | 133 | } |
134 | ||
d62a17ae | 135 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
136 | zebra_size_t length) | |
cd1964ff | 137 | { |
d62a17ae | 138 | bgp_parse_fec_update(); |
139 | return 0; | |
cd1964ff DS |
140 | } |
141 | ||
d62a17ae | 142 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 143 | { |
d62a17ae | 144 | struct listnode *node, *nnode; |
145 | struct peer *peer; | |
146 | ||
147 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
148 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
149 | && peer->status != Established) { | |
150 | if (peer_active(peer)) | |
151 | BGP_EVENT_ADD(peer, BGP_Stop); | |
152 | BGP_EVENT_ADD(peer, BGP_Start); | |
153 | } | |
154 | } | |
a80beece DS |
155 | } |
156 | ||
d62a17ae | 157 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 158 | { |
d62a17ae | 159 | struct listnode *node; |
160 | struct connected *connected; | |
161 | struct interface *ifp; | |
162 | struct prefix *p; | |
163 | ||
164 | /* Kick-off the FSM for any relevant peers only if there is a | |
165 | * valid local address on the interface. | |
166 | */ | |
167 | ifp = ifc->ifp; | |
168 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
169 | p = connected->address; | |
170 | if (p->family == AF_INET6 | |
171 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
172 | break; | |
173 | } | |
174 | if (!connected) | |
175 | return; | |
176 | ||
177 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
178 | } |
179 | ||
d62a17ae | 180 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
181 | int del) | |
a80beece | 182 | { |
d62a17ae | 183 | struct listnode *node, *nnode; |
184 | struct peer *peer; | |
185 | struct interface *ifp; | |
186 | ||
187 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
188 | if (peer->conf_if | |
189 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
190 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
191 | BGP_EVENT_ADD(peer, BGP_Stop); | |
192 | } | |
193 | } | |
194 | /* Free neighbor also, if we're asked to. */ | |
195 | if (del) { | |
196 | ifp = ifc->ifp; | |
197 | listnode_delete(ifp->nbr_connected, ifc); | |
198 | nbr_connected_free(ifc); | |
199 | } | |
a80beece DS |
200 | } |
201 | ||
718e3744 | 202 | /* Inteface addition message from zebra. */ |
d62a17ae | 203 | static int bgp_interface_add(int command, struct zclient *zclient, |
204 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 205 | { |
d62a17ae | 206 | struct interface *ifp; |
207 | struct bgp *bgp; | |
718e3744 | 208 | |
d62a17ae | 209 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
210 | if (!ifp) // unexpected | |
211 | return 0; | |
718e3744 | 212 | |
d62a17ae | 213 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
214 | zlog_debug("Rx Intf add VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 215 | |
d62a17ae | 216 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
217 | if (!bgp) | |
218 | return 0; | |
4a04e5f7 | 219 | |
d62a17ae | 220 | bgp_update_interface_nbrs(bgp, ifp, ifp); |
221 | return 0; | |
718e3744 | 222 | } |
223 | ||
d62a17ae | 224 | static int bgp_interface_delete(int command, struct zclient *zclient, |
225 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 226 | { |
d62a17ae | 227 | struct stream *s; |
228 | struct interface *ifp; | |
229 | struct bgp *bgp; | |
718e3744 | 230 | |
2f9123e0 DS |
231 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
232 | if (!bgp) | |
233 | return 0; | |
234 | ||
d62a17ae | 235 | s = zclient->ibuf; |
236 | ifp = zebra_interface_state_read(s, vrf_id); | |
237 | if (!ifp) /* This may happen if we've just unregistered for a VRF. */ | |
238 | return 0; | |
a4499b83 | 239 | |
d62a17ae | 240 | if (BGP_DEBUG(zebra, ZEBRA)) |
241 | zlog_debug("Rx Intf del VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 242 | |
d62a17ae | 243 | bgp_update_interface_nbrs(bgp, ifp, NULL); |
64745052 | 244 | |
ff880b78 | 245 | if_set_index(ifp, IFINDEX_INTERNAL); |
d62a17ae | 246 | return 0; |
718e3744 | 247 | } |
248 | ||
d62a17ae | 249 | static int bgp_interface_up(int command, struct zclient *zclient, |
250 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 251 | { |
d62a17ae | 252 | struct stream *s; |
253 | struct interface *ifp; | |
254 | struct connected *c; | |
255 | struct nbr_connected *nc; | |
256 | struct listnode *node, *nnode; | |
257 | struct bgp *bgp; | |
6aeb9e78 | 258 | |
2f9123e0 DS |
259 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
260 | if (!bgp) | |
261 | return 0; | |
262 | ||
d62a17ae | 263 | s = zclient->ibuf; |
264 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 265 | |
d62a17ae | 266 | if (!ifp) |
267 | return 0; | |
718e3744 | 268 | |
d62a17ae | 269 | if (BGP_DEBUG(zebra, ZEBRA)) |
270 | zlog_debug("Rx Intf up VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 271 | |
d62a17ae | 272 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
273 | bgp_connected_add(bgp, c); | |
718e3744 | 274 | |
d62a17ae | 275 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
276 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 277 | |
d62a17ae | 278 | return 0; |
718e3744 | 279 | } |
280 | ||
d62a17ae | 281 | static int bgp_interface_down(int command, struct zclient *zclient, |
282 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 283 | { |
d62a17ae | 284 | struct stream *s; |
285 | struct interface *ifp; | |
286 | struct connected *c; | |
287 | struct nbr_connected *nc; | |
288 | struct listnode *node, *nnode; | |
289 | struct bgp *bgp; | |
6aeb9e78 | 290 | |
2f9123e0 DS |
291 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
292 | if (!bgp) | |
293 | return 0; | |
294 | ||
d62a17ae | 295 | s = zclient->ibuf; |
296 | ifp = zebra_interface_state_read(s, vrf_id); | |
297 | if (!ifp) | |
298 | return 0; | |
718e3744 | 299 | |
d62a17ae | 300 | if (BGP_DEBUG(zebra, ZEBRA)) |
301 | zlog_debug("Rx Intf down VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 302 | |
d62a17ae | 303 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
304 | bgp_connected_delete(bgp, c); | |
718e3744 | 305 | |
d62a17ae | 306 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
307 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 308 | |
d62a17ae | 309 | /* Fast external-failover */ |
310 | { | |
311 | struct peer *peer; | |
718e3744 | 312 | |
d62a17ae | 313 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) |
314 | return 0; | |
718e3744 | 315 | |
d62a17ae | 316 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 317 | #if defined(HAVE_CUMULUS) |
d62a17ae | 318 | /* Take down directly connected EBGP peers as well as |
319 | * 1-hop BFD | |
320 | * tracked (directly connected) IBGP peers. | |
321 | */ | |
322 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1) | |
323 | && (!peer->bfd_info | |
324 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 325 | #else |
d62a17ae | 326 | /* Take down directly connected EBGP peers */ |
327 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
8c4f6381 | 328 | #endif |
d62a17ae | 329 | continue; |
718e3744 | 330 | |
d62a17ae | 331 | if (ifp == peer->nexthop.ifp) { |
332 | BGP_EVENT_ADD(peer, BGP_Stop); | |
333 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
334 | } | |
335 | } | |
336 | } | |
718e3744 | 337 | |
d62a17ae | 338 | return 0; |
718e3744 | 339 | } |
340 | ||
d62a17ae | 341 | static int bgp_interface_address_add(int command, struct zclient *zclient, |
342 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 343 | { |
d62a17ae | 344 | struct connected *ifc; |
2f9123e0 DS |
345 | struct bgp *bgp; |
346 | ||
347 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
348 | if (!bgp) | |
349 | return 0; | |
d62a17ae | 350 | |
351 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); | |
352 | ||
353 | if (ifc == NULL) | |
354 | return 0; | |
355 | ||
356 | if (bgp_debug_zebra(ifc->address)) { | |
357 | char buf[PREFIX2STR_BUFFER]; | |
358 | prefix2str(ifc->address, buf, sizeof(buf)); | |
359 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
360 | ifc->ifp->name, buf); | |
361 | } | |
362 | ||
363 | if (if_is_operative(ifc->ifp)) { | |
d62a17ae | 364 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 365 | |
d62a17ae | 366 | /* If we have learnt of any neighbors on this interface, |
367 | * check to kick off any BGP interface-based neighbors, | |
368 | * but only if this is a link-local address. | |
369 | */ | |
370 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
371 | && !list_isempty(ifc->ifp->nbr_connected)) | |
372 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
373 | } | |
374 | ||
375 | return 0; | |
718e3744 | 376 | } |
377 | ||
d62a17ae | 378 | static int bgp_interface_address_delete(int command, struct zclient *zclient, |
379 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 380 | { |
d62a17ae | 381 | struct connected *ifc; |
382 | struct bgp *bgp; | |
6aeb9e78 | 383 | |
2f9123e0 DS |
384 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
385 | if (!bgp) | |
386 | return 0; | |
387 | ||
d62a17ae | 388 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); |
718e3744 | 389 | |
d62a17ae | 390 | if (ifc == NULL) |
391 | return 0; | |
718e3744 | 392 | |
d62a17ae | 393 | if (bgp_debug_zebra(ifc->address)) { |
394 | char buf[PREFIX2STR_BUFFER]; | |
395 | prefix2str(ifc->address, buf, sizeof(buf)); | |
396 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
397 | ifc->ifp->name, buf); | |
398 | } | |
a39275d7 | 399 | |
d62a17ae | 400 | if (if_is_operative(ifc->ifp)) { |
2f9123e0 | 401 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 402 | } |
718e3744 | 403 | |
d62a17ae | 404 | connected_free(ifc); |
718e3744 | 405 | |
d62a17ae | 406 | return 0; |
718e3744 | 407 | } |
408 | ||
d62a17ae | 409 | static int bgp_interface_nbr_address_add(int command, struct zclient *zclient, |
410 | zebra_size_t length, vrf_id_t vrf_id) | |
a80beece | 411 | { |
d62a17ae | 412 | struct nbr_connected *ifc = NULL; |
413 | struct bgp *bgp; | |
414 | ||
415 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); | |
416 | ||
417 | if (ifc == NULL) | |
418 | return 0; | |
419 | ||
420 | if (bgp_debug_zebra(ifc->address)) { | |
421 | char buf[PREFIX2STR_BUFFER]; | |
422 | prefix2str(ifc->address, buf, sizeof(buf)); | |
423 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
424 | ifc->ifp->name, buf); | |
425 | } | |
426 | ||
427 | if (if_is_operative(ifc->ifp)) { | |
428 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
429 | if (bgp) | |
430 | bgp_nbr_connected_add(bgp, ifc); | |
431 | } | |
432 | ||
433 | return 0; | |
a80beece DS |
434 | } |
435 | ||
d62a17ae | 436 | static int bgp_interface_nbr_address_delete(int command, |
437 | struct zclient *zclient, | |
438 | zebra_size_t length, | |
439 | vrf_id_t vrf_id) | |
a80beece | 440 | { |
d62a17ae | 441 | struct nbr_connected *ifc = NULL; |
442 | struct bgp *bgp; | |
6aeb9e78 | 443 | |
d62a17ae | 444 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); |
a80beece | 445 | |
d62a17ae | 446 | if (ifc == NULL) |
447 | return 0; | |
a80beece | 448 | |
d62a17ae | 449 | if (bgp_debug_zebra(ifc->address)) { |
450 | char buf[PREFIX2STR_BUFFER]; | |
451 | prefix2str(ifc->address, buf, sizeof(buf)); | |
452 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
453 | ifc->ifp->name, buf); | |
454 | } | |
a80beece | 455 | |
d62a17ae | 456 | if (if_is_operative(ifc->ifp)) { |
457 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
458 | if (bgp) | |
459 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
460 | } | |
a80beece | 461 | |
d62a17ae | 462 | nbr_connected_free(ifc); |
a80beece | 463 | |
d62a17ae | 464 | return 0; |
a80beece DS |
465 | } |
466 | ||
bfcd43b2 | 467 | /* VRF update for an interface. */ |
d62a17ae | 468 | static int bgp_interface_vrf_update(int command, struct zclient *zclient, |
469 | zebra_size_t length, vrf_id_t vrf_id) | |
bfcd43b2 | 470 | { |
d62a17ae | 471 | struct interface *ifp; |
472 | vrf_id_t new_vrf_id; | |
473 | struct connected *c; | |
474 | struct nbr_connected *nc; | |
475 | struct listnode *node, *nnode; | |
476 | struct bgp *bgp; | |
bfcd43b2 | 477 | |
d62a17ae | 478 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
479 | &new_vrf_id); | |
480 | if (!ifp) | |
481 | return 0; | |
bfcd43b2 | 482 | |
d62a17ae | 483 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
484 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
485 | ifp->name, new_vrf_id); | |
bfcd43b2 | 486 | |
d62a17ae | 487 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
488 | if (!bgp) | |
489 | return 0; | |
bfcd43b2 | 490 | |
d62a17ae | 491 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
492 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 493 | |
d62a17ae | 494 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
495 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 496 | |
d62a17ae | 497 | /* Fast external-failover */ |
498 | { | |
499 | struct peer *peer; | |
bfcd43b2 | 500 | |
d62a17ae | 501 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) |
502 | return 0; | |
bfcd43b2 | 503 | |
d62a17ae | 504 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
505 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
506 | continue; | |
bfcd43b2 | 507 | |
d62a17ae | 508 | if (ifp == peer->nexthop.ifp) |
509 | BGP_EVENT_ADD(peer, BGP_Stop); | |
510 | } | |
511 | } | |
bfcd43b2 | 512 | |
d62a17ae | 513 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 514 | |
d62a17ae | 515 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
516 | if (!bgp) | |
517 | return 0; | |
bfcd43b2 | 518 | |
d62a17ae | 519 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
520 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 521 | |
d62a17ae | 522 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
523 | bgp_nbr_connected_add(bgp, nc); | |
524 | return 0; | |
bfcd43b2 | 525 | } |
526 | ||
718e3744 | 527 | /* Zebra route add and delete treatment. */ |
74489921 RW |
528 | static int zebra_read_route(int command, struct zclient *zclient, |
529 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 530 | { |
9de1f7ff | 531 | enum nexthop_types_t nhtype; |
74489921 RW |
532 | struct zapi_route api; |
533 | union g_addr nexthop; | |
9de1f7ff | 534 | ifindex_t ifindex; |
74489921 | 535 | int add, i; |
d62a17ae | 536 | struct bgp *bgp; |
537 | ||
538 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
539 | if (!bgp) | |
540 | return 0; | |
541 | ||
74489921 RW |
542 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
543 | return -1; | |
d62a17ae | 544 | |
74489921 RW |
545 | /* we completely ignore srcdest routes for now. */ |
546 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
547 | return 0; | |
d62a17ae | 548 | |
74489921 RW |
549 | /* ignore link-local address. */ |
550 | if (api.prefix.family == AF_INET6 | |
551 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
552 | return 0; | |
d62a17ae | 553 | |
74489921 RW |
554 | nexthop = api.nexthops[0].gate; |
555 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 556 | nhtype = api.nexthops[0].type; |
d62a17ae | 557 | |
74489921 RW |
558 | add = (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
559 | if (add) { | |
d62a17ae | 560 | /* |
561 | * The ADD message is actually an UPDATE and there is no | |
562 | * explicit DEL | |
563 | * for a prior redistributed route, if any. So, perform an | |
564 | * implicit | |
565 | * DEL processing for the same redistributed route from any | |
566 | * other | |
567 | * source type. | |
568 | */ | |
569 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
570 | if (i != api.type) | |
74489921 | 571 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 572 | api.instance); |
573 | } | |
574 | ||
575 | /* Now perform the add/update. */ | |
74489921 | 576 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
577 | nhtype, api.metric, api.type, api.instance, |
578 | api.tag); | |
d62a17ae | 579 | } else { |
74489921 RW |
580 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
581 | api.instance); | |
a39275d7 | 582 | } |
d62a17ae | 583 | |
74489921 RW |
584 | if (bgp_debug_zebra(&api.prefix)) { |
585 | char buf[2][PREFIX_STRLEN]; | |
586 | ||
587 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
77e62f2b | 588 | if (add) { |
589 | inet_ntop(api.prefix.family, &nexthop, buf[1], | |
590 | sizeof(buf[1])); | |
591 | zlog_debug( | |
592 | "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI, | |
593 | vrf_id, zebra_route_string(api.type), | |
594 | api.instance, buf[0], buf[1], nhtype, | |
595 | ifindex, api.metric, api.tag); | |
596 | } else { | |
597 | zlog_debug( | |
598 | "Rx route DEL VRF %u %s[%d] %s", | |
599 | vrf_id, zebra_route_string(api.type), | |
600 | api.instance, buf[0]); | |
601 | } | |
d62a17ae | 602 | } |
603 | ||
604 | return 0; | |
718e3744 | 605 | } |
6b0655a2 | 606 | |
d62a17ae | 607 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 608 | { |
f4e14fdb | 609 | struct vrf *vrf; |
d62a17ae | 610 | struct listnode *cnode; |
611 | struct interface *ifp; | |
612 | struct connected *connected; | |
613 | struct prefix_ipv4 p; | |
614 | struct prefix *cp; | |
615 | ||
f4e14fdb RW |
616 | vrf = vrf_lookup_by_id(vrf_id); |
617 | if (!vrf) | |
618 | return NULL; | |
619 | ||
d62a17ae | 620 | p.family = AF_INET; |
621 | p.prefix = *addr; | |
622 | p.prefixlen = IPV4_MAX_BITLEN; | |
623 | ||
451fda4f | 624 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 625 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
626 | cp = connected->address; | |
627 | ||
628 | if (cp->family == AF_INET) | |
629 | if (prefix_match(cp, (struct prefix *)&p)) | |
630 | return ifp; | |
631 | } | |
718e3744 | 632 | } |
d62a17ae | 633 | return NULL; |
718e3744 | 634 | } |
635 | ||
d62a17ae | 636 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 637 | { |
f4e14fdb | 638 | struct vrf *vrf; |
d62a17ae | 639 | struct listnode *cnode; |
640 | struct interface *ifp; | |
641 | struct connected *connected; | |
642 | struct prefix *cp; | |
643 | ||
f4e14fdb RW |
644 | vrf = vrf_lookup_by_id(vrf_id); |
645 | if (!vrf) | |
646 | return NULL; | |
647 | ||
451fda4f | 648 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 649 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
650 | cp = connected->address; | |
651 | ||
652 | if (cp->family == AF_INET) | |
653 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
654 | return ifp; | |
655 | } | |
718e3744 | 656 | } |
d62a17ae | 657 | return NULL; |
718e3744 | 658 | } |
659 | ||
d62a17ae | 660 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
661 | vrf_id_t vrf_id) | |
718e3744 | 662 | { |
f4e14fdb | 663 | struct vrf *vrf; |
d62a17ae | 664 | struct listnode *cnode; |
665 | struct interface *ifp; | |
666 | struct connected *connected; | |
667 | struct prefix_ipv6 p; | |
668 | struct prefix *cp; | |
669 | ||
f4e14fdb RW |
670 | vrf = vrf_lookup_by_id(vrf_id); |
671 | if (!vrf) | |
672 | return NULL; | |
673 | ||
d62a17ae | 674 | p.family = AF_INET6; |
675 | p.prefix = *addr; | |
676 | p.prefixlen = IPV6_MAX_BITLEN; | |
677 | ||
451fda4f | 678 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 679 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
680 | cp = connected->address; | |
681 | ||
682 | if (cp->family == AF_INET6) | |
683 | if (prefix_match(cp, (struct prefix *)&p)) { | |
684 | if (IN6_IS_ADDR_LINKLOCAL( | |
685 | &cp->u.prefix6)) { | |
686 | if (ifindex == ifp->ifindex) | |
687 | return ifp; | |
688 | } else | |
689 | return ifp; | |
690 | } | |
691 | } | |
718e3744 | 692 | } |
d62a17ae | 693 | return NULL; |
718e3744 | 694 | } |
695 | ||
d62a17ae | 696 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
697 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 698 | { |
f4e14fdb | 699 | struct vrf *vrf; |
d62a17ae | 700 | struct listnode *cnode; |
701 | struct interface *ifp; | |
702 | struct connected *connected; | |
703 | struct prefix *cp; | |
704 | ||
f4e14fdb RW |
705 | vrf = vrf_lookup_by_id(vrf_id); |
706 | if (!vrf) | |
707 | return NULL; | |
708 | ||
451fda4f | 709 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 710 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
711 | cp = connected->address; | |
712 | ||
713 | if (cp->family == AF_INET6) | |
714 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
715 | if (IN6_IS_ADDR_LINKLOCAL( | |
716 | &cp->u.prefix6)) { | |
717 | if (ifindex == ifp->ifindex) | |
718 | return ifp; | |
719 | } else | |
720 | return ifp; | |
721 | } | |
722 | } | |
718e3744 | 723 | } |
d62a17ae | 724 | return NULL; |
718e3744 | 725 | } |
726 | ||
d62a17ae | 727 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 728 | { |
d62a17ae | 729 | struct listnode *cnode; |
730 | struct connected *connected; | |
731 | struct prefix *cp; | |
732 | ||
733 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
734 | cp = connected->address; | |
735 | ||
736 | if (cp->family == AF_INET6) | |
737 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
738 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
739 | return 1; | |
740 | } | |
741 | } | |
742 | return 0; | |
718e3744 | 743 | } |
744 | ||
d62a17ae | 745 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 746 | { |
d62a17ae | 747 | struct listnode *cnode; |
748 | struct connected *connected; | |
749 | struct prefix *cp; | |
750 | ||
751 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
752 | cp = connected->address; | |
753 | ||
754 | if (cp->family == AF_INET6) | |
755 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
756 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
757 | return 1; | |
758 | } | |
759 | } | |
760 | return 0; | |
718e3744 | 761 | } |
718e3744 | 762 | |
d62a17ae | 763 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 764 | { |
d62a17ae | 765 | struct listnode *cnode; |
766 | struct connected *connected; | |
767 | struct prefix *cp; | |
768 | ||
769 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
770 | cp = connected->address; | |
771 | if ((cp->family == AF_INET) | |
772 | && !ipv4_martian(&(cp->u.prefix4))) { | |
773 | *addr = cp->u.prefix4; | |
774 | return 1; | |
775 | } | |
776 | } | |
777 | return 0; | |
6ee06fa9 PM |
778 | } |
779 | ||
d75681db DS |
780 | |
781 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
782 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 783 | { |
d62a17ae | 784 | int ret = 0; |
785 | struct interface *ifp = NULL; | |
786 | ||
787 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
788 | ||
789 | if (!local) | |
d75681db | 790 | return false; |
d62a17ae | 791 | if (!remote) |
d75681db | 792 | return false; |
d62a17ae | 793 | |
794 | if (local->sa.sa_family == AF_INET) { | |
795 | nexthop->v4 = local->sin.sin_addr; | |
796 | if (peer->update_if) | |
797 | ifp = if_lookup_by_name(peer->update_if, | |
798 | peer->bgp->vrf_id); | |
799 | else | |
800 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
801 | peer->bgp->vrf_id); | |
718e3744 | 802 | } |
d62a17ae | 803 | if (local->sa.sa_family == AF_INET6) { |
804 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
805 | if (peer->conf_if || peer->ifname) | |
806 | ifp = if_lookup_by_name(peer->conf_if | |
807 | ? peer->conf_if | |
808 | : peer->ifname, | |
809 | peer->bgp->vrf_id); | |
810 | } else if (peer->update_if) | |
811 | ifp = if_lookup_by_name(peer->update_if, | |
812 | peer->bgp->vrf_id); | |
813 | else | |
814 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
815 | local->sin6.sin6_scope_id, | |
816 | peer->bgp->vrf_id); | |
718e3744 | 817 | } |
d62a17ae | 818 | |
d75681db DS |
819 | if (!ifp) { |
820 | /* | |
821 | * BGP views do not currently get proper data | |
822 | * from zebra( when attached ) to be able to | |
823 | * properly resolve nexthops, so give this | |
824 | * instance type a pass. | |
825 | */ | |
826 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
827 | return true; | |
828 | /* | |
829 | * If we have no interface data but we have established | |
830 | * some connection w/ zebra than something has gone | |
831 | * terribly terribly wrong here, so say this failed | |
832 | * If we do not any zebra connection then not | |
833 | * having a ifp pointer is ok. | |
834 | */ | |
835 | return zclient_num_connects ? false : true; | |
836 | } | |
d62a17ae | 837 | |
838 | nexthop->ifp = ifp; | |
839 | ||
840 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
841 | if (local->sa.sa_family == AF_INET) { | |
842 | /* IPv6 nexthop*/ | |
843 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
844 | ||
845 | if (!ret) { | |
846 | /* There is no global nexthop. Use link-local address as | |
847 | * both the | |
848 | * global and link-local nexthop. In this scenario, the | |
849 | * expectation | |
850 | * for interop is that the network admin would use a | |
851 | * route-map to | |
852 | * specify the global IPv6 nexthop. | |
853 | */ | |
854 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
855 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
856 | IPV6_MAX_BYTELEN); | |
857 | } else | |
858 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
859 | ||
860 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
861 | peer->shared_network = 1; | |
862 | else | |
863 | peer->shared_network = 0; | |
718e3744 | 864 | } |
718e3744 | 865 | |
d62a17ae | 866 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
867 | if (local->sa.sa_family == AF_INET6) { | |
868 | struct interface *direct = NULL; | |
869 | ||
870 | /* IPv4 nexthop. */ | |
871 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
872 | if (!ret && peer->local_id.s_addr) | |
873 | nexthop->v4 = peer->local_id; | |
874 | ||
875 | /* Global address*/ | |
876 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
877 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
878 | IPV6_MAX_BYTELEN); | |
879 | ||
880 | /* If directory connected set link-local address. */ | |
881 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
882 | remote->sin6.sin6_scope_id, | |
883 | peer->bgp->vrf_id); | |
884 | if (direct) | |
885 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
886 | } else | |
887 | /* Link-local address. */ | |
888 | { | |
889 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
890 | ||
891 | /* If there is no global address. Set link-local | |
892 | address as | |
893 | global. I know this break RFC specification... */ | |
894 | /* In this scenario, the expectation for interop is that | |
895 | * the | |
896 | * network admin would use a route-map to specify the | |
897 | * global | |
898 | * IPv6 nexthop. | |
899 | */ | |
900 | if (!ret) | |
901 | memcpy(&nexthop->v6_global, | |
902 | &local->sin6.sin6_addr, | |
903 | IPV6_MAX_BYTELEN); | |
904 | /* Always set the link-local address */ | |
905 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
906 | IPV6_MAX_BYTELEN); | |
907 | } | |
908 | ||
909 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
910 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
911 | remote->sin6.sin6_scope_id, | |
912 | peer->bgp->vrf_id)) | |
913 | peer->shared_network = 1; | |
914 | else | |
915 | peer->shared_network = 0; | |
916 | } | |
718e3744 | 917 | |
d62a17ae | 918 | /* KAME stack specific treatment. */ |
718e3744 | 919 | #ifdef KAME |
d62a17ae | 920 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
921 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
922 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
923 | } | |
924 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
925 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
926 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
927 | } | |
718e3744 | 928 | #endif /* KAME */ |
e33a4880 | 929 | |
d62a17ae | 930 | /* If we have identified the local interface, there is no error for now. |
931 | */ | |
d75681db | 932 | return true; |
718e3744 | 933 | } |
934 | ||
77e62f2b | 935 | static struct in6_addr *bgp_info_to_ipv6_nexthop(struct bgp_info *info, |
936 | ifindex_t *ifindex) | |
73ac8160 | 937 | { |
d62a17ae | 938 | struct in6_addr *nexthop = NULL; |
939 | ||
940 | /* Only global address nexthop exists. */ | |
77e62f2b | 941 | if (info->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL) { |
d62a17ae | 942 | nexthop = &info->attr->mp_nexthop_global; |
77e62f2b | 943 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
944 | *ifindex = info->attr->nh_ifindex; | |
945 | ||
946 | } | |
d62a17ae | 947 | |
948 | /* If both global and link-local address present. */ | |
949 | if (info->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) { | |
950 | /* Check if route-map is set to prefer global over link-local */ | |
77e62f2b | 951 | if (info->attr->mp_nexthop_prefer_global) { |
d62a17ae | 952 | nexthop = &info->attr->mp_nexthop_global; |
77e62f2b | 953 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
954 | *ifindex = info->attr->nh_ifindex; | |
955 | } else { | |
d62a17ae | 956 | /* Workaround for Cisco's nexthop bug. */ |
957 | if (IN6_IS_ADDR_UNSPECIFIED( | |
958 | &info->attr->mp_nexthop_global) | |
59a0f1cb DS |
959 | && info->peer->su_remote->sa.sa_family |
960 | == AF_INET6) { | |
d62a17ae | 961 | nexthop = |
962 | &info->peer->su_remote->sin6.sin6_addr; | |
77e62f2b | 963 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
59a0f1cb DS |
964 | *ifindex = info->peer->nexthop.ifp |
965 | ->ifindex; | |
77e62f2b | 966 | } else { |
d62a17ae | 967 | nexthop = &info->attr->mp_nexthop_local; |
77e62f2b | 968 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
969 | *ifindex = info->attr->nh_lla_ifindex; | |
970 | } | |
d62a17ae | 971 | } |
972 | } | |
973 | ||
974 | return nexthop; | |
73ac8160 DS |
975 | } |
976 | ||
d62a17ae | 977 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
978 | struct bgp_info *info) | |
73ac8160 | 979 | { |
b4cb15c6 DL |
980 | route_map_result_t ret; |
981 | ||
982 | ret = route_map_apply(map, p, RMAP_BGP, info); | |
983 | bgp_attr_flush(info->attr); | |
984 | ||
985 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 986 | return 1; |
987 | ||
988 | if (bgp_debug_zebra(p)) { | |
989 | if (p->family == AF_INET) { | |
990 | char buf[2][INET_ADDRSTRLEN]; | |
991 | zlog_debug( | |
992 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
993 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
994 | sizeof(buf[0])), | |
995 | p->prefixlen, | |
996 | inet_ntop(AF_INET, &info->attr->nexthop, buf[1], | |
997 | sizeof(buf[1]))); | |
998 | } | |
999 | if (p->family == AF_INET6) { | |
1000 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 1001 | ifindex_t ifindex; |
1002 | struct in6_addr *nexthop; | |
1003 | ||
1004 | nexthop = bgp_info_to_ipv6_nexthop(info, &ifindex); | |
d62a17ae | 1005 | zlog_debug( |
1006 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
1007 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
1008 | sizeof(buf[0])), | |
1009 | p->prefixlen, | |
77e62f2b | 1010 | inet_ntop(AF_INET6, nexthop, |
d62a17ae | 1011 | buf[1], sizeof(buf[1]))); |
1012 | } | |
1013 | } | |
1014 | return 0; | |
73ac8160 DS |
1015 | } |
1016 | ||
b98f7728 PG |
1017 | static struct thread *bgp_tm_thread_connect; |
1018 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1019 | static bool bgp_tm_chunk_obtained; |
1020 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1021 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1022 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
1023 | |
1024 | static int bgp_zebra_tm_connect(struct thread *t) | |
1025 | { | |
1026 | struct zclient *zclient; | |
1027 | int delay = 10, ret = 0; | |
1028 | ||
1029 | zclient = THREAD_ARG(t); | |
1030 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1031 | delay = 60; | |
1032 | else { | |
1033 | bgp_tm_status_connected = false; | |
1034 | ret = tm_table_manager_connect(zclient); | |
1035 | } | |
1036 | if (ret < 0) { | |
b7cd3069 | 1037 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1038 | bgp_tm_status_connected = false; |
1039 | } else { | |
1040 | if (!bgp_tm_status_connected) | |
1041 | zlog_debug("Connecting to table manager. Success"); | |
1042 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1043 | if (!bgp_tm_chunk_obtained) { |
1044 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1045 | &bgp_tm_min, | |
6818e7e5 | 1046 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1047 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1048 | /* parse non installed entries */ |
1049 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1050 | } | |
31c28cd7 | 1051 | } |
b98f7728 PG |
1052 | } |
1053 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1054 | &bgp_tm_thread_connect); | |
1055 | return 0; | |
1056 | } | |
1057 | ||
6818e7e5 PG |
1058 | bool bgp_zebra_tm_chunk_obtained(void) |
1059 | { | |
1060 | return bgp_tm_chunk_obtained; | |
1061 | } | |
1062 | ||
31c28cd7 PG |
1063 | uint32_t bgp_zebra_tm_get_id(void) |
1064 | { | |
1065 | static int table_id; | |
1066 | ||
1067 | if (!bgp_tm_chunk_obtained) | |
1068 | return ++table_id; | |
1069 | return bgp_tm_min++; | |
1070 | } | |
1071 | ||
6818e7e5 | 1072 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1073 | { |
1074 | int delay = 1; | |
1075 | ||
1076 | /* if already set, do nothing | |
1077 | */ | |
1078 | if (bgp_tm_thread_connect != NULL) | |
1079 | return; | |
1080 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1081 | bgp_tm_chunk_obtained = false; |
1082 | bgp_tm_min = bgp_tm_max = 0; | |
1083 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1084 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1085 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1086 | &bgp_tm_thread_connect); | |
1087 | } | |
1088 | ||
1089 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1090 | uint32_t *start, uint32_t *end) | |
1091 | { | |
1092 | int ret; | |
1093 | ||
1094 | if (!bgp_tm_status_connected) | |
1095 | return -1; | |
1096 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1097 | if (ret < 0) { | |
af4c2728 | 1098 | flog_err(BGP_ERR_TABLE_CHUNK, |
14454c9f | 1099 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1100 | return -1; |
1101 | } | |
1102 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1103 | chunk_size, *start, *end); | |
1104 | return 0; | |
1105 | } | |
1106 | ||
77e62f2b | 1107 | static int update_ipv4nh_for_route_install(int nh_othervrf, |
1108 | struct in_addr *nexthop, | |
1109 | struct attr *attr, | |
1110 | bool is_evpn, | |
1111 | struct zapi_nexthop *api_nh) | |
1112 | { | |
1113 | api_nh->gate.ipv4 = *nexthop; | |
1114 | ||
1115 | /* Need to set fields appropriately for EVPN routes imported into | |
1116 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1117 | * connected routes leaked into a VRF. | |
1118 | */ | |
1119 | if (is_evpn) | |
1120 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1121 | else if (nh_othervrf && | |
1122 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { | |
1123 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1124 | api_nh->ifindex = attr->nh_ifindex; | |
1125 | } else | |
1126 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1127 | ||
1128 | return 1; | |
1129 | } | |
1130 | ||
1131 | static int update_ipv6nh_for_route_install(int nh_othervrf, | |
1132 | struct in6_addr *nexthop, | |
1133 | ifindex_t ifindex, | |
1134 | struct bgp_info *ri, | |
1135 | struct bgp_info *best_ri, | |
1136 | bool is_evpn, | |
1137 | struct zapi_nexthop *api_nh) | |
1138 | { | |
1139 | struct attr *attr; | |
1140 | ||
1141 | attr = ri->attr; | |
1142 | ||
1143 | if (is_evpn) | |
1144 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1145 | else if (nh_othervrf) { | |
1146 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { | |
1147 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1148 | api_nh->ifindex = attr->nh_ifindex; | |
1149 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1150 | if (ifindex == 0) | |
1151 | return 0; | |
1152 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1153 | api_nh->ifindex = ifindex; | |
1154 | } else { | |
1155 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1156 | api_nh->ifindex = 0; | |
1157 | } | |
1158 | } else { | |
1159 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1160 | if (ri == best_ri && | |
1161 | attr->mp_nexthop_len | |
1162 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1163 | if (ri->peer->nexthop.ifp) | |
1164 | ifindex = ri->peer->nexthop.ifp | |
1165 | ->ifindex; | |
1166 | if (!ifindex) { | |
1167 | if (ri->peer->conf_if) | |
1168 | ifindex = ri->peer->ifp->ifindex; | |
1169 | else if (ri->peer->ifname) | |
1170 | ifindex = ifname2ifindex( | |
1171 | ri->peer->ifname, | |
1172 | ri->peer->bgp->vrf_id); | |
1173 | else if (ri->peer->nexthop.ifp) | |
1174 | ifindex = ri->peer->nexthop.ifp | |
1175 | ->ifindex; | |
1176 | } | |
1177 | ||
1178 | if (ifindex == 0) | |
1179 | return 0; | |
1180 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1181 | api_nh->ifindex = ifindex; | |
1182 | } else { | |
1183 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1184 | api_nh->ifindex = 0; | |
1185 | } | |
1186 | } | |
1187 | api_nh->gate.ipv6 = *nexthop; | |
1188 | ||
1189 | return 1; | |
1190 | } | |
1191 | ||
d62a17ae | 1192 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
1193 | struct bgp_info *info, struct bgp *bgp, afi_t afi, | |
1194 | safi_t safi) | |
718e3744 | 1195 | { |
9913029c RW |
1196 | struct zapi_route api; |
1197 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 1198 | int nh_family; |
a74e593b | 1199 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1200 | int has_valid_label = 0; |
d7c0a89a | 1201 | uint8_t distance; |
d62a17ae | 1202 | struct peer *peer; |
1203 | struct bgp_info *mpinfo; | |
d7c0a89a | 1204 | uint32_t metric; |
b4cb15c6 | 1205 | struct attr local_attr; |
d62a17ae | 1206 | struct bgp_info local_info; |
b4cb15c6 | 1207 | struct bgp_info *mpinfo_cp = &local_info; |
d62a17ae | 1208 | route_tag_t tag; |
1209 | mpls_label_t label; | |
ddb5b488 | 1210 | int nh_othervrf = 0; |
960035b2 | 1211 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1212 | bool is_evpn; |
77e62f2b | 1213 | int nh_updated; |
d62a17ae | 1214 | |
1215 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1216 | * know of this instance. | |
1217 | */ | |
1218 | if (!bgp_install_info_to_zebra(bgp)) | |
1219 | return; | |
1220 | ||
d62a17ae | 1221 | if (bgp->main_zebra_update_hold) |
1222 | return; | |
1223 | ||
960035b2 | 1224 | if (bgp_debug_zebra(p)) |
ba1976db | 1225 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1226 | |
529efa23 PG |
1227 | if (safi == SAFI_FLOWSPEC) |
1228 | return bgp_pbr_update_entry(bgp, &rn->p, | |
1229 | info, afi, safi, true); | |
1230 | ||
ddb5b488 PZ |
1231 | /* |
1232 | * vrf leaking support (will have only one nexthop) | |
1233 | */ | |
1234 | if (info->extra && info->extra->bgp_orig) | |
1235 | nh_othervrf = 1; | |
1236 | ||
9913029c RW |
1237 | /* Make Zebra API structure. */ |
1238 | memset(&api, 0, sizeof(api)); | |
1239 | api.vrf_id = bgp->vrf_id; | |
1240 | api.type = ZEBRA_ROUTE_BGP; | |
1241 | api.safi = safi; | |
1242 | api.prefix = *p; | |
1243 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1244 | ||
d62a17ae | 1245 | peer = info->peer; |
1246 | ||
ddb5b488 PZ |
1247 | if (info->type == ZEBRA_ROUTE_BGP |
1248 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1249 | ||
1ec90b5e | 1250 | /* Obtain peer from parent */ |
1251 | if (info->extra && info->extra->parent) | |
1252 | peer = ((struct bgp_info *)(info->extra->parent))->peer; | |
ddb5b488 PZ |
1253 | } |
1254 | ||
d62a17ae | 1255 | tag = info->attr->tag; |
1256 | ||
88493076 | 1257 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1258 | is_evpn = is_route_parent_evpn(info); |
1259 | if (is_evpn) | |
90264d64 | 1260 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1261 | |
d62a17ae | 1262 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1263 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1264 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1265 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1266 | } |
a39275d7 | 1267 | |
d62a17ae | 1268 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1269 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1270 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1271 | ||
4e8b02f4 | 1272 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1273 | |
2ad4f093 RW |
1274 | /* Metric is currently based on the best-path only */ |
1275 | metric = info->attr->med; | |
1276 | for (mpinfo = info; mpinfo; mpinfo = bgp_info_mpath_next(mpinfo)) { | |
a74e593b RW |
1277 | if (valid_nh_count >= multipath_num) |
1278 | break; | |
1279 | ||
b4cb15c6 DL |
1280 | *mpinfo_cp = *mpinfo; |
1281 | ||
d0d695f4 RW |
1282 | /* Get nexthop address-family */ |
1283 | if (p->family == AF_INET | |
1284 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1285 | nh_family = AF_INET; | |
1286 | else if (p->family == AF_INET6 | |
1287 | || (p->family == AF_INET | |
1288 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1289 | nh_family = AF_INET6; | |
1290 | else | |
1291 | continue; | |
1292 | ||
1374aec9 | 1293 | api_nh = &api.nexthops[valid_nh_count]; |
a12495e7 DS |
1294 | api_nh->vrf_id = nh_othervrf ? info->extra->bgp_orig->vrf_id |
1295 | : bgp->vrf_id; | |
2ad4f093 | 1296 | if (nh_family == AF_INET) { |
ddb5b488 | 1297 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1298 | if (mpinfo->extra) { |
1299 | zlog_debug( | |
1300 | "%s: p=%s, bgp_is_valid_label: %d", | |
1301 | __func__, buf_prefix, | |
1302 | bgp_is_valid_label( | |
1303 | &mpinfo->extra | |
1304 | ->label[0])); | |
1305 | } else { | |
1306 | zlog_debug( | |
1307 | "%s: p=%s, extra is NULL, no label", | |
1308 | __func__, buf_prefix); | |
1309 | } | |
1310 | } | |
1311 | ||
6c0a6053 | 1312 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1313 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1314 | apply doesn't modify the BGP route info. */ |
1315 | local_attr = *mpinfo->attr; | |
1316 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1317 | } |
b4cb15c6 | 1318 | |
ddb5b488 | 1319 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1320 | if (!bgp_table_map_apply( |
d62a17ae | 1321 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1322 | mpinfo_cp)) |
1323 | continue; | |
1324 | ||
1325 | /* metric/tag is only allowed to be | |
1326 | * overridden on 1st nexthop */ | |
1327 | if (mpinfo == info) { | |
1328 | metric = mpinfo_cp->attr->med; | |
1329 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1330 | } |
b4cb15c6 | 1331 | } |
d62a17ae | 1332 | |
77e62f2b | 1333 | nh_updated = update_ipv4nh_for_route_install( |
1334 | nh_othervrf, | |
1335 | &mpinfo_cp->attr->nexthop, | |
1336 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1337 | } else { |
f220da99 | 1338 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1339 | struct in6_addr *nexthop; |
9913029c | 1340 | |
6c0a6053 | 1341 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1342 | /* Copy info and attributes, so the route-map |
1343 | apply doesn't modify the BGP route info. */ | |
1344 | local_attr = *mpinfo->attr; | |
1345 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1346 | } |
1347 | ||
d62a17ae | 1348 | if (bgp->table_map[afi][safi].name) { |
1349 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1350 | apply doesn't modify the BGP route info. */ |
1351 | local_attr = *mpinfo->attr; | |
1352 | mpinfo_cp->attr = &local_attr; | |
1353 | ||
1354 | if (!bgp_table_map_apply( | |
d62a17ae | 1355 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1356 | mpinfo_cp)) |
1357 | continue; | |
1358 | ||
1359 | /* metric/tag is only allowed to be | |
1360 | * overridden on 1st nexthop */ | |
1361 | if (mpinfo == info) { | |
1362 | metric = mpinfo_cp->attr->med; | |
1363 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1364 | } |
b4cb15c6 | 1365 | } |
77e62f2b | 1366 | nexthop = bgp_info_to_ipv6_nexthop(mpinfo_cp, |
1367 | &ifindex); | |
1368 | nh_updated = update_ipv6nh_for_route_install( | |
1369 | nh_othervrf, nexthop, ifindex, | |
1370 | mpinfo, info, is_evpn, api_nh); | |
2ad4f093 | 1371 | } |
d62a17ae | 1372 | |
77e62f2b | 1373 | /* Did we get proper nexthop info to update zebra? */ |
1374 | if (!nh_updated) | |
1375 | continue; | |
1376 | ||
a4d82a8a PZ |
1377 | if (mpinfo->extra |
1378 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1379 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1380 | has_valid_label = 1; |
b57ba6d2 | 1381 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1382 | |
2ad4f093 RW |
1383 | api_nh->label_num = 1; |
1384 | api_nh->labels[0] = label; | |
d62a17ae | 1385 | } |
22e63104 | 1386 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1387 | sizeof(struct ethaddr)); | |
2ad4f093 RW |
1388 | valid_nh_count++; |
1389 | } | |
d62a17ae | 1390 | |
77e62f2b | 1391 | |
a89b49cc | 1392 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1393 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1394 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1395 | |
5cc347c4 DS |
1396 | /* |
1397 | * When we create an aggregate route we must also | |
1398 | * install a Null0 route in the RIB, so overwrite | |
1399 | * what was written into api with a blackhole route | |
1400 | */ | |
1401 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1402 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1403 | else | |
2ad4f093 | 1404 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1405 | |
2ad4f093 RW |
1406 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1407 | api.metric = metric; | |
d62a17ae | 1408 | |
2ad4f093 RW |
1409 | if (tag) { |
1410 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1411 | api.tag = tag; | |
1412 | } | |
d62a17ae | 1413 | |
2ad4f093 RW |
1414 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1415 | if (distance) { | |
1416 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1417 | api.distance = distance; | |
1418 | } | |
d62a17ae | 1419 | |
2ad4f093 RW |
1420 | if (bgp_debug_zebra(p)) { |
1421 | char prefix_buf[PREFIX_STRLEN]; | |
1422 | char nh_buf[INET6_ADDRSTRLEN]; | |
1423 | char label_buf[20]; | |
1424 | int i; | |
1425 | ||
1426 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1427 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1428 | " count %d", | |
1429 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1430 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1431 | for (i = 0; i < api.nexthop_num; i++) { | |
1432 | api_nh = &api.nexthops[i]; | |
1433 | ||
77e62f2b | 1434 | if (api_nh->type == NEXTHOP_TYPE_IFINDEX) |
1435 | nh_buf[0] = '\0'; | |
1436 | else { | |
1437 | if (api_nh->type == NEXTHOP_TYPE_IPV4) | |
1438 | nh_family = AF_INET; | |
1439 | else | |
1440 | nh_family = AF_INET6; | |
1441 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1442 | sizeof(nh_buf)); | |
1443 | } | |
2ad4f093 RW |
1444 | |
1445 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1446 | if (has_valid_label |
1447 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1448 | sprintf(label_buf, "label %u", |
1449 | api_nh->labels[0]); | |
77e62f2b | 1450 | zlog_debug(" nhop [%d]: %s if %u VRF %u %s", |
1451 | i + 1, nh_buf, api_nh->ifindex, | |
1452 | api_nh->vrf_id, label_buf); | |
d62a17ae | 1453 | } |
1454 | } | |
2ad4f093 | 1455 | |
960035b2 PZ |
1456 | if (bgp_debug_zebra(p)) { |
1457 | int recursion_flag = 0; | |
1458 | ||
1459 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1460 | recursion_flag = 1; | |
1461 | ||
1462 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1463 | __func__, buf_prefix, | |
1464 | (recursion_flag ? "" : "NOT ")); | |
1465 | } | |
2ad4f093 RW |
1466 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1467 | : ZEBRA_ROUTE_DELETE, | |
1468 | zclient, &api); | |
718e3744 | 1469 | } |
1470 | ||
73ac8160 | 1471 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1472 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1473 | { |
d62a17ae | 1474 | struct bgp_node *rn; |
1475 | struct bgp_table *table; | |
1476 | struct bgp_info *ri; | |
1477 | ||
1478 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1479 | * know of this instance. | |
1480 | */ | |
1481 | if (!bgp_install_info_to_zebra(bgp)) | |
1482 | return; | |
1483 | ||
1484 | table = bgp->rib[afi][safi]; | |
1485 | if (!table) | |
1486 | return; | |
1487 | ||
1488 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
1489 | for (ri = rn->info; ri; ri = ri->next) | |
ddb5b488 PZ |
1490 | if (CHECK_FLAG(ri->flags, BGP_INFO_SELECTED) && |
1491 | ||
1492 | (ri->type == ZEBRA_ROUTE_BGP | |
1493 | && (ri->sub_type == BGP_ROUTE_NORMAL | |
1494 | || ri->sub_type == BGP_ROUTE_IMPORTED))) | |
1495 | ||
d62a17ae | 1496 | bgp_zebra_announce(rn, &rn->p, ri, bgp, afi, |
1497 | safi); | |
73ac8160 DS |
1498 | } |
1499 | ||
568e10ca | 1500 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_info *info, |
1501 | struct bgp *bgp, safi_t safi) | |
718e3744 | 1502 | { |
2ad4f093 | 1503 | struct zapi_route api; |
f7df1907 | 1504 | struct peer *peer; |
ddb5b488 | 1505 | |
d62a17ae | 1506 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1507 | * know of this instance. | |
1508 | */ | |
568e10ca | 1509 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1510 | return; |
1511 | ||
f7df1907 PG |
1512 | if (safi == SAFI_FLOWSPEC) { |
1513 | peer = info->peer; | |
529efa23 PG |
1514 | return bgp_pbr_update_entry(peer->bgp, p, |
1515 | info, AFI_IP, safi, false); | |
f7df1907 | 1516 | } |
529efa23 | 1517 | |
2ad4f093 | 1518 | memset(&api, 0, sizeof(api)); |
568e10ca | 1519 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1520 | api.type = ZEBRA_ROUTE_BGP; |
1521 | api.safi = safi; | |
1522 | api.prefix = *p; | |
d62a17ae | 1523 | |
88493076 | 1524 | /* If the route's source is EVPN, flag as such. */ |
1525 | if (is_route_parent_evpn(info)) | |
90264d64 | 1526 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1527 | |
2ad4f093 RW |
1528 | if (bgp_debug_zebra(p)) { |
1529 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1530 | |
2ad4f093 | 1531 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1532 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1533 | } |
d62a17ae | 1534 | |
2ad4f093 | 1535 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1536 | } |
56c1f7d8 | 1537 | |
d7c0a89a QY |
1538 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1539 | unsigned short instance) | |
7c8ff89e | 1540 | { |
d62a17ae | 1541 | struct list *red_list; |
1542 | struct listnode *node; | |
1543 | struct bgp_redist *red; | |
7c8ff89e | 1544 | |
d62a17ae | 1545 | red_list = bgp->redist[afi][type]; |
1546 | if (!red_list) | |
1547 | return (NULL); | |
7c8ff89e | 1548 | |
d62a17ae | 1549 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1550 | if (red->instance == instance) | |
1551 | return red; | |
7c8ff89e | 1552 | |
d62a17ae | 1553 | return NULL; |
7c8ff89e DS |
1554 | } |
1555 | ||
d7c0a89a QY |
1556 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1557 | unsigned short instance) | |
7c8ff89e | 1558 | { |
d62a17ae | 1559 | struct list *red_list; |
1560 | struct bgp_redist *red; | |
7c8ff89e | 1561 | |
d62a17ae | 1562 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1563 | if (red) | |
1564 | return red; | |
7c8ff89e | 1565 | |
d62a17ae | 1566 | if (!bgp->redist[afi][type]) |
1567 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1568 | |
d62a17ae | 1569 | red_list = bgp->redist[afi][type]; |
1570 | red = (struct bgp_redist *)XCALLOC(MTYPE_BGP_REDIST, | |
1571 | sizeof(struct bgp_redist)); | |
1572 | red->instance = instance; | |
7c8ff89e | 1573 | |
d62a17ae | 1574 | listnode_add(red_list, red); |
7c8ff89e | 1575 | |
d62a17ae | 1576 | return red; |
7c8ff89e DS |
1577 | } |
1578 | ||
d7c0a89a QY |
1579 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1580 | unsigned short instance) | |
7c8ff89e | 1581 | { |
d62a17ae | 1582 | struct bgp_redist *red; |
1583 | ||
1584 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1585 | ||
1586 | if (red) { | |
1587 | listnode_delete(bgp->redist[afi][type], red); | |
1588 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 DS |
1589 | if (!bgp->redist[afi][type]->count) |
1590 | list_delete_and_null(&bgp->redist[afi][type]); | |
d62a17ae | 1591 | } |
7c8ff89e | 1592 | } |
6b0655a2 | 1593 | |
718e3744 | 1594 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1595 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1596 | unsigned short instance, bool changed) |
718e3744 | 1597 | { |
e923dd62 | 1598 | /* If redistribute options are changed call |
1599 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1600 | * the routes | |
1601 | */ | |
1602 | if (changed) | |
1603 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1604 | |
d62a17ae | 1605 | /* Return if already redistribute flag is set. */ |
1606 | if (instance) { | |
1607 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1608 | instance)) | |
1609 | return CMD_WARNING; | |
718e3744 | 1610 | |
d62a17ae | 1611 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1612 | } else { | |
1613 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1614 | return CMD_WARNING; | |
7076bb2f | 1615 | |
65efcfce | 1616 | #if ENABLE_BGP_VNC |
d62a17ae | 1617 | if (bgp->vrf_id == VRF_DEFAULT |
1618 | && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1619 | vnc_export_bgp_enable( | |
1620 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1621 | } | |
65efcfce LB |
1622 | #endif |
1623 | ||
d62a17ae | 1624 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1625 | } | |
718e3744 | 1626 | |
ea12cf11 DS |
1627 | /* |
1628 | * Don't try to register if we're not connected to Zebra or Zebra | |
1629 | * doesn't know of this instance. | |
1630 | * | |
1631 | * When we come up later well resend if needed. | |
d62a17ae | 1632 | */ |
1633 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1634 | return CMD_SUCCESS; |
a39275d7 | 1635 | |
d62a17ae | 1636 | if (BGP_DEBUG(zebra, ZEBRA)) |
1637 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1638 | bgp->vrf_id, afi, zebra_route_string(type), | |
1639 | instance); | |
518f0eb1 | 1640 | |
d62a17ae | 1641 | /* Send distribute add message to zebra. */ |
1642 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1643 | instance, bgp->vrf_id); | |
718e3744 | 1644 | |
d62a17ae | 1645 | return CMD_SUCCESS; |
718e3744 | 1646 | } |
1647 | ||
d62a17ae | 1648 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1649 | unsigned short instance) |
518f0eb1 | 1650 | { |
d62a17ae | 1651 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1652 | * know of this instance. | |
1653 | */ | |
1654 | if (!bgp_install_info_to_zebra(bgp)) | |
1655 | return -1; | |
1656 | ||
1657 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1658 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1659 | bgp->vrf_id, afi, zebra_route_string(type), | |
1660 | instance); | |
1661 | ||
1662 | /* Send distribute add message to zebra. */ | |
1663 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1664 | instance, bgp->vrf_id); | |
1665 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1666 | instance, bgp->vrf_id); | |
1667 | ||
1668 | return 0; | |
518f0eb1 DS |
1669 | } |
1670 | ||
718e3744 | 1671 | /* Redistribute with route-map specification. */ |
d62a17ae | 1672 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name) |
718e3744 | 1673 | { |
d62a17ae | 1674 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1675 | return 0; | |
718e3744 | 1676 | |
d62a17ae | 1677 | if (red->rmap.name) |
1678 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1679 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
1680 | red->rmap.map = route_map_lookup_by_name(name); | |
718e3744 | 1681 | |
d62a17ae | 1682 | return 1; |
718e3744 | 1683 | } |
1684 | ||
1685 | /* Redistribute with metric specification. */ | |
d62a17ae | 1686 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
d7c0a89a | 1687 | afi_t afi, int type, uint32_t metric) |
718e3744 | 1688 | { |
d62a17ae | 1689 | struct bgp_node *rn; |
1690 | struct bgp_info *ri; | |
1691 | ||
1692 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1693 | return 0; | |
1694 | ||
1695 | red->redist_metric_flag = 1; | |
1696 | red->redist_metric = metric; | |
1697 | ||
1698 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1699 | rn = bgp_route_next(rn)) { | |
1700 | for (ri = rn->info; ri; ri = ri->next) { | |
1701 | if (ri->sub_type == BGP_ROUTE_REDISTRIBUTE | |
1702 | && ri->type == type | |
1703 | && ri->instance == red->instance) { | |
1704 | struct attr *old_attr; | |
1705 | struct attr new_attr; | |
1706 | ||
1707 | bgp_attr_dup(&new_attr, ri->attr); | |
1708 | new_attr.med = red->redist_metric; | |
1709 | old_attr = ri->attr; | |
1710 | ri->attr = bgp_attr_intern(&new_attr); | |
1711 | bgp_attr_unintern(&old_attr); | |
1712 | ||
1713 | bgp_info_set_flag(rn, ri, | |
1714 | BGP_INFO_ATTR_CHANGED); | |
1715 | bgp_process(bgp, rn, afi, SAFI_UNICAST); | |
1716 | } | |
1717 | } | |
1718 | } | |
1719 | ||
1720 | return 1; | |
718e3744 | 1721 | } |
1722 | ||
1723 | /* Unset redistribution. */ | |
d62a17ae | 1724 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1725 | unsigned short instance) |
718e3744 | 1726 | { |
d62a17ae | 1727 | struct bgp_redist *red; |
1728 | ||
1729 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1730 | if (!red) | |
1731 | return CMD_SUCCESS; | |
1732 | ||
1733 | /* Return if zebra connection is disabled. */ | |
1734 | if (instance) { | |
1735 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1736 | instance)) | |
1737 | return CMD_WARNING; | |
1738 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1739 | } else { | |
1740 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1741 | return CMD_WARNING; | |
1742 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1743 | } | |
718e3744 | 1744 | |
65efcfce | 1745 | |
d62a17ae | 1746 | if (bgp_install_info_to_zebra(bgp)) { |
1747 | /* Send distribute delete message to zebra. */ | |
1748 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1749 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1750 | bgp->vrf_id, afi, zebra_route_string(type), | |
1751 | instance); | |
1752 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1753 | type, instance, bgp->vrf_id); | |
1754 | } | |
1755 | ||
1756 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1757 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1758 | ||
1759 | return CMD_SUCCESS; | |
718e3744 | 1760 | } |
1761 | ||
6aeb9e78 | 1762 | /* Unset redistribution. */ |
d62a17ae | 1763 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1764 | unsigned short instance) |
6aeb9e78 | 1765 | { |
d62a17ae | 1766 | struct bgp_redist *red; |
6aeb9e78 | 1767 | |
ddb5b488 PZ |
1768 | /* |
1769 | * vnc and vpn->vrf checks must be before red check because | |
1770 | * they operate within bgpd irrespective of zebra connection | |
1771 | * status. red lookup fails if there is no zebra connection. | |
1772 | */ | |
1773 | #if ENABLE_BGP_VNC | |
1774 | if (bgp->vrf_id == VRF_DEFAULT && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1775 | vnc_export_bgp_disable(bgp, afi); | |
1776 | } | |
1777 | #endif | |
ddb5b488 | 1778 | |
d62a17ae | 1779 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1780 | if (!red) | |
1781 | return CMD_SUCCESS; | |
6aeb9e78 | 1782 | |
d62a17ae | 1783 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1784 | |
d62a17ae | 1785 | /* Unset route-map. */ |
1786 | if (red->rmap.name) | |
1787 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1788 | red->rmap.name = NULL; | |
1789 | red->rmap.map = NULL; | |
6aeb9e78 | 1790 | |
d62a17ae | 1791 | /* Unset metric. */ |
1792 | red->redist_metric_flag = 0; | |
1793 | red->redist_metric = 0; | |
6aeb9e78 | 1794 | |
d62a17ae | 1795 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1796 | |
d62a17ae | 1797 | return CMD_SUCCESS; |
6aeb9e78 DS |
1798 | } |
1799 | ||
eb117f29 SK |
1800 | /* Update redistribute vrf bitmap during triggers like |
1801 | restart networking or delete/add VRFs */ | |
d62a17ae | 1802 | void bgp_update_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) |
eb117f29 | 1803 | { |
d62a17ae | 1804 | int i; |
1805 | afi_t afi; | |
1806 | ||
1807 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1808 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
48c74f88 DS |
1809 | if ((old_vrf_id == VRF_UNKNOWN) |
1810 | || vrf_bitmap_check(zclient->redist[afi][i], | |
1811 | old_vrf_id)) { | |
d62a17ae | 1812 | vrf_bitmap_unset(zclient->redist[afi][i], |
1813 | old_vrf_id); | |
1814 | vrf_bitmap_set(zclient->redist[afi][i], | |
1815 | bgp->vrf_id); | |
1816 | } | |
1817 | return; | |
eb117f29 SK |
1818 | } |
1819 | ||
d62a17ae | 1820 | void bgp_zclient_reset(void) |
718e3744 | 1821 | { |
d62a17ae | 1822 | zclient_reset(zclient); |
718e3744 | 1823 | } |
1824 | ||
ad4cbda1 | 1825 | /* Register this instance with Zebra. Invoked upon connect (for |
1826 | * default instance) and when other VRFs are learnt (or created and | |
1827 | * already learnt). | |
1828 | */ | |
d62a17ae | 1829 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1830 | { |
d62a17ae | 1831 | /* Don't try to register if we're not connected to Zebra */ |
1832 | if (!zclient || zclient->sock < 0) | |
1833 | return; | |
ad4cbda1 | 1834 | |
d62a17ae | 1835 | if (BGP_DEBUG(zebra, ZEBRA)) |
1836 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1837 | |
d62a17ae | 1838 | /* Register for router-id, interfaces, redistributed routes. */ |
1839 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1840 | |
d62a17ae | 1841 | /* For default instance, register to learn about VNIs, if appropriate. |
1842 | */ | |
a4d82a8a | 1843 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1844 | bgp_zebra_advertise_all_vni(bgp, 1); |
ad4cbda1 | 1845 | } |
1846 | ||
1847 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1848 | * being deleted (default or VRF) and it is already registered. | |
1849 | */ | |
d62a17ae | 1850 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1851 | { |
d62a17ae | 1852 | /* Don't try to deregister if we're not connected to Zebra */ |
1853 | if (zclient->sock < 0) | |
1854 | return; | |
ad4cbda1 | 1855 | |
d62a17ae | 1856 | if (BGP_DEBUG(zebra, ZEBRA)) |
1857 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1858 | |
d62a17ae | 1859 | /* For default instance, unregister learning about VNIs, if appropriate. |
1860 | */ | |
a4d82a8a | 1861 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1862 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1863 | |
d62a17ae | 1864 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1865 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1866 | } |
1867 | ||
d62a17ae | 1868 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1869 | { |
d62a17ae | 1870 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1871 | |
d62a17ae | 1872 | /* Don't try to initiate if we're not connected to Zebra */ |
1873 | if (zclient->sock < 0) | |
1874 | return; | |
4a04e5f7 | 1875 | |
d62a17ae | 1876 | if (BGP_DEBUG(zebra, ZEBRA)) |
1877 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1878 | peer->host); | |
4a04e5f7 | 1879 | |
d62a17ae | 1880 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1881 | ra_interval); | |
4a04e5f7 | 1882 | } |
1883 | ||
d62a17ae | 1884 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1885 | { |
d62a17ae | 1886 | /* Don't try to terminate if we're not connected to Zebra */ |
1887 | if (zclient->sock < 0) | |
1888 | return; | |
4a04e5f7 | 1889 | |
d62a17ae | 1890 | if (BGP_DEBUG(zebra, ZEBRA)) |
1891 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1892 | peer->host); | |
4a04e5f7 | 1893 | |
d62a17ae | 1894 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1895 | } |
1896 | ||
31310b25 MK |
1897 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1898 | { | |
1899 | struct stream *s = NULL; | |
1900 | ||
1901 | /* Check socket. */ | |
1902 | if (!zclient || zclient->sock < 0) | |
1903 | return 0; | |
1904 | ||
1905 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1906 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1907 | return 0; | |
1908 | ||
1909 | s = zclient->obuf; | |
1910 | stream_reset(s); | |
1911 | ||
1912 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1913 | stream_putc(s, advertise); | |
1914 | stream_put3(s, vni); | |
1915 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1916 | ||
1917 | return zclient_send_message(zclient); | |
1918 | } | |
1919 | ||
1a98c087 MK |
1920 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1921 | { | |
1922 | struct stream *s = NULL; | |
1923 | ||
1924 | /* Check socket. */ | |
1925 | if (!zclient || zclient->sock < 0) | |
1926 | return 0; | |
1927 | ||
1928 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1929 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1930 | return 0; | |
1931 | ||
1932 | s = zclient->obuf; | |
1933 | stream_reset(s); | |
1934 | ||
1935 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
1936 | stream_putc(s, advertise); | |
cc6d5476 | 1937 | stream_putl(s, vni); |
1a98c087 MK |
1938 | stream_putw_at(s, 0, stream_get_endp(s)); |
1939 | ||
1940 | return zclient_send_message(zclient); | |
1941 | } | |
1942 | ||
d62a17ae | 1943 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 1944 | { |
d62a17ae | 1945 | struct stream *s; |
7724c0a1 | 1946 | |
d62a17ae | 1947 | /* Check socket. */ |
1948 | if (!zclient || zclient->sock < 0) | |
1949 | return 0; | |
7724c0a1 | 1950 | |
d62a17ae | 1951 | /* Don't try to register if Zebra doesn't know of this instance. */ |
1952 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1953 | return 0; | |
7724c0a1 | 1954 | |
d62a17ae | 1955 | s = zclient->obuf; |
1956 | stream_reset(s); | |
7724c0a1 | 1957 | |
d62a17ae | 1958 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
1959 | stream_putc(s, advertise); | |
1960 | stream_putw_at(s, 0, stream_get_endp(s)); | |
7724c0a1 | 1961 | |
d62a17ae | 1962 | return zclient_send_message(zclient); |
7724c0a1 | 1963 | } |
1964 | ||
30d50e6d PG |
1965 | static int rule_notify_owner(int command, struct zclient *zclient, |
1966 | zebra_size_t length, vrf_id_t vrf_id) | |
1967 | { | |
1968 | uint32_t seqno, priority, unique; | |
1969 | enum zapi_rule_notify_owner note; | |
1970 | struct bgp_pbr_action *bgp_pbra; | |
1971 | ifindex_t ifi; | |
1972 | ||
1973 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
1974 | &ifi, ¬e)) | |
1975 | return -1; | |
1976 | ||
70eabd12 | 1977 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d PG |
1978 | if (!bgp_pbra) { |
1979 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1980 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
1981 | __PRETTY_FUNCTION__, unique); | |
1982 | return 0; | |
1983 | } | |
1984 | ||
1985 | switch (note) { | |
1986 | case ZAPI_RULE_FAIL_INSTALL: | |
1987 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1988 | zlog_debug("%s: Received RULE_FAIL_INSTALL", | |
1989 | __PRETTY_FUNCTION__); | |
1990 | bgp_pbra->installed = false; | |
1991 | bgp_pbra->install_in_progress = false; | |
1992 | break; | |
1993 | case ZAPI_RULE_INSTALLED: | |
1994 | bgp_pbra->installed = true; | |
1995 | bgp_pbra->install_in_progress = false; | |
1996 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1997 | zlog_debug("%s: Received RULE_INSTALLED", | |
1998 | __PRETTY_FUNCTION__); | |
1999 | break; | |
f18a08f5 | 2000 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2001 | case ZAPI_RULE_REMOVED: |
2002 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2003 | zlog_debug("%s: Received RULE REMOVED", | |
2004 | __PRETTY_FUNCTION__); | |
2005 | break; | |
2006 | } | |
2007 | ||
2008 | return 0; | |
2009 | } | |
2010 | ||
2011 | static int ipset_notify_owner(int command, struct zclient *zclient, | |
2012 | zebra_size_t length, vrf_id_t vrf_id) | |
2013 | { | |
2014 | uint32_t unique; | |
2015 | enum zapi_ipset_notify_owner note; | |
2016 | struct bgp_pbr_match *bgp_pbim; | |
2017 | ||
2018 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2019 | &unique, | |
2020 | ¬e)) | |
2021 | return -1; | |
2022 | ||
2023 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2024 | if (!bgp_pbim) { | |
2025 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2026 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
82e194ed | 2027 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2028 | return 0; |
2029 | } | |
2030 | ||
2031 | switch (note) { | |
2032 | case ZAPI_IPSET_FAIL_INSTALL: | |
2033 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2034 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", | |
2035 | __PRETTY_FUNCTION__); | |
2036 | bgp_pbim->installed = false; | |
2037 | bgp_pbim->install_in_progress = false; | |
2038 | break; | |
2039 | case ZAPI_IPSET_INSTALLED: | |
2040 | bgp_pbim->installed = true; | |
2041 | bgp_pbim->install_in_progress = false; | |
2042 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2043 | zlog_debug("%s: Received IPSET_INSTALLED", | |
2044 | __PRETTY_FUNCTION__); | |
2045 | break; | |
f18a08f5 | 2046 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2047 | case ZAPI_IPSET_REMOVED: |
2048 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2049 | zlog_debug("%s: Received IPSET REMOVED", | |
2050 | __PRETTY_FUNCTION__); | |
2051 | break; | |
2052 | } | |
2053 | ||
2054 | return 0; | |
2055 | } | |
2056 | ||
2057 | static int ipset_entry_notify_owner(int command, struct zclient *zclient, | |
2058 | zebra_size_t length, vrf_id_t vrf_id) | |
2059 | { | |
2060 | uint32_t unique; | |
2061 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2062 | enum zapi_ipset_entry_notify_owner note; | |
2063 | struct bgp_pbr_match_entry *bgp_pbime; | |
2064 | ||
2065 | if (!zapi_ipset_entry_notify_decode( | |
2066 | zclient->ibuf, | |
2067 | &unique, | |
2068 | ipset_name, | |
2069 | ¬e)) | |
2070 | return -1; | |
2071 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2072 | ipset_name, | |
2073 | unique); | |
2074 | if (!bgp_pbime) { | |
2075 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2076 | zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)", |
82e194ed | 2077 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2078 | return 0; |
2079 | } | |
2080 | ||
2081 | switch (note) { | |
2082 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2083 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2084 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
2085 | __PRETTY_FUNCTION__); | |
2086 | bgp_pbime->installed = false; | |
2087 | bgp_pbime->install_in_progress = false; | |
2088 | break; | |
2089 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 PG |
2090 | { |
2091 | struct bgp_info *bgp_info; | |
2092 | struct bgp_info_extra *extra; | |
2093 | ||
2094 | bgp_pbime->installed = true; | |
2095 | bgp_pbime->install_in_progress = false; | |
2096 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2097 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
2098 | __PRETTY_FUNCTION__); | |
2099 | /* link bgp_info to bpme */ | |
2100 | bgp_info = (struct bgp_info *)bgp_pbime->bgp_info; | |
2101 | extra = bgp_info_extra_get(bgp_info); | |
c26edcda PG |
2102 | if (extra->bgp_fs_pbr == NULL) |
2103 | extra->bgp_fs_pbr = list_new(); | |
2104 | listnode_add(extra->bgp_fs_pbr, bgp_pbime); | |
b588b642 | 2105 | } |
30d50e6d | 2106 | break; |
f18a08f5 | 2107 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2108 | case ZAPI_IPSET_ENTRY_REMOVED: |
2109 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2110 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
2111 | __PRETTY_FUNCTION__); | |
2112 | break; | |
2113 | } | |
2114 | return 0; | |
2115 | } | |
2116 | ||
c16a0a62 PG |
2117 | static int iptable_notify_owner(int command, struct zclient *zclient, |
2118 | zebra_size_t length, vrf_id_t vrf_id) | |
2119 | { | |
2120 | uint32_t unique; | |
2121 | enum zapi_iptable_notify_owner note; | |
2122 | struct bgp_pbr_match *bgpm; | |
2123 | ||
2124 | if (!zapi_iptable_notify_decode( | |
2125 | zclient->ibuf, | |
2126 | &unique, | |
2127 | ¬e)) | |
2128 | return -1; | |
2129 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2130 | if (!bgpm) { | |
2131 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed PG |
2132 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
2133 | __PRETTY_FUNCTION__, note, unique); | |
c16a0a62 PG |
2134 | return 0; |
2135 | } | |
2136 | switch (note) { | |
2137 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2138 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2139 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
2140 | __PRETTY_FUNCTION__); | |
2141 | bgpm->installed_in_iptable = false; | |
2142 | bgpm->install_iptable_in_progress = false; | |
2143 | break; | |
2144 | case ZAPI_IPTABLE_INSTALLED: | |
2145 | bgpm->installed_in_iptable = true; | |
2146 | bgpm->install_iptable_in_progress = false; | |
2147 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2148 | zlog_debug("%s: Received IPTABLE_INSTALLED", | |
2149 | __PRETTY_FUNCTION__); | |
a6b07429 | 2150 | bgpm->action->refcnt++; |
c16a0a62 | 2151 | break; |
f18a08f5 | 2152 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2153 | case ZAPI_IPTABLE_REMOVED: |
2154 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2155 | zlog_debug("%s: Received IPTABLE REMOVED", | |
2156 | __PRETTY_FUNCTION__); | |
2157 | break; | |
2158 | } | |
2159 | return 0; | |
2160 | } | |
2161 | ||
30d50e6d PG |
2162 | static void bgp_encode_pbr_rule_action(struct stream *s, |
2163 | struct bgp_pbr_action *pbra) | |
2164 | { | |
2165 | struct prefix any; | |
2166 | ||
2167 | stream_putl(s, 0); /* seqno unused */ | |
2168 | stream_putl(s, 0); /* ruleno unused */ | |
2169 | ||
2170 | stream_putl(s, pbra->unique); | |
2171 | ||
2172 | memset(&any, 0, sizeof(any)); | |
2173 | any.family = AF_INET; | |
2174 | stream_putc(s, any.family); | |
2175 | stream_putc(s, any.prefixlen); | |
2176 | stream_put(s, &any.u.prefix, prefix_blen(&any)); | |
2177 | ||
2178 | stream_putw(s, 0); /* src port */ | |
2179 | ||
2180 | stream_putc(s, any.family); | |
2181 | stream_putc(s, any.prefixlen); | |
2182 | stream_put(s, &any.u.prefix, prefix_blen(&any)); | |
2183 | ||
2184 | stream_putw(s, 0); /* dst port */ | |
2185 | ||
2186 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
2187 | ||
2188 | stream_putl(s, pbra->table_id); | |
2189 | ||
2190 | stream_putl(s, 0); /* ifindex unused */ | |
2191 | } | |
2192 | ||
2193 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2194 | struct bgp_pbr_match *pbim) | |
2195 | { | |
2196 | stream_putl(s, pbim->unique); | |
2197 | stream_putl(s, pbim->type); | |
2198 | ||
2199 | stream_put(s, pbim->ipset_name, | |
2200 | ZEBRA_IPSET_NAME_SIZE); | |
2201 | ||
2202 | ||
2203 | } | |
2204 | ||
2205 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2206 | struct bgp_pbr_match_entry *pbime) | |
2207 | { | |
2208 | stream_putl(s, pbime->unique); | |
2209 | /* check that back pointer is not null */ | |
2210 | stream_put(s, pbime->backpointer->ipset_name, | |
2211 | ZEBRA_IPSET_NAME_SIZE); | |
2212 | ||
2213 | stream_putc(s, pbime->src.family); | |
2214 | stream_putc(s, pbime->src.prefixlen); | |
2215 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2216 | ||
2217 | stream_putc(s, pbime->dst.family); | |
2218 | stream_putc(s, pbime->dst.prefixlen); | |
2219 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2220 | |
2221 | stream_putw(s, pbime->src_port_min); | |
2222 | stream_putw(s, pbime->src_port_max); | |
2223 | stream_putw(s, pbime->dst_port_min); | |
2224 | stream_putw(s, pbime->dst_port_max); | |
2225 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2226 | } |
2227 | ||
c16a0a62 PG |
2228 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2229 | struct bgp_pbr_action *bpa, | |
2230 | struct bgp_pbr_match *pbm) | |
2231 | { | |
2232 | stream_putl(s, pbm->unique2); | |
2233 | ||
2234 | stream_putl(s, pbm->type); | |
2235 | ||
2236 | stream_putl(s, pbm->flags); | |
2237 | ||
2238 | /* TODO: correlate with what is contained | |
2239 | * into bgp_pbr_action. | |
2240 | * currently only forward supported | |
2241 | */ | |
2242 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2243 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2244 | else | |
2245 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2246 | stream_putl(s, bpa->fwmark); | |
2247 | stream_put(s, pbm->ipset_name, | |
2248 | ZEBRA_IPSET_NAME_SIZE); | |
83360720 PG |
2249 | stream_putw(s, pbm->pkt_len_min); |
2250 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2251 | stream_putw(s, pbm->tcp_flags); |
2252 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2253 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2254 | stream_putc(s, pbm->fragment); |
c16a0a62 PG |
2255 | } |
2256 | ||
ad4cbda1 | 2257 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2258 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2259 | { |
d62a17ae | 2260 | struct bgp *bgp; |
7076bb2f | 2261 | |
d62a17ae | 2262 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2263 | |
d62a17ae | 2264 | /* At this point, we may or may not have BGP instances configured, but |
2265 | * we're only interested in the default VRF (others wouldn't have learnt | |
2266 | * the VRF from Zebra yet.) | |
2267 | */ | |
2268 | bgp = bgp_get_default(); | |
2269 | if (!bgp) | |
2270 | return; | |
ad4cbda1 | 2271 | |
d62a17ae | 2272 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2273 | |
d62a17ae | 2274 | /* Send the client registration */ |
2275 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER); | |
2376c3f2 | 2276 | |
955bfd98 | 2277 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2278 | bgp_lp_event_zebra_up(); |
955bfd98 | 2279 | |
d62a17ae | 2280 | /* TODO - What if we have peers and networks configured, do we have to |
2281 | * kick-start them? | |
2282 | */ | |
7076bb2f FL |
2283 | } |
2284 | ||
50f74cf1 | 2285 | static int bgp_zebra_process_local_es(int cmd, struct zclient *zclient, |
2286 | zebra_size_t length, vrf_id_t vrf_id) | |
2287 | { | |
2288 | esi_t esi; | |
2289 | struct bgp *bgp = NULL; | |
2290 | struct stream *s = NULL; | |
2291 | char buf[ESI_STR_LEN]; | |
2292 | char buf1[INET6_ADDRSTRLEN]; | |
2293 | struct ipaddr originator_ip; | |
2294 | ||
2295 | memset(&esi, 0, sizeof(esi_t)); | |
2296 | memset(&originator_ip, 0, sizeof(struct ipaddr)); | |
2297 | ||
2298 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2299 | if (!bgp) | |
2300 | return 0; | |
2301 | ||
2302 | s = zclient->ibuf; | |
2303 | stream_get(&esi, s, sizeof(esi_t)); | |
2304 | stream_get(&originator_ip, s, sizeof(struct ipaddr)); | |
2305 | ||
2306 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2307 | zlog_debug("Rx %s ESI %s originator-ip %s", | |
2308 | (cmd == ZEBRA_LOCAL_ES_ADD) ? "add" : "del", | |
2309 | esi_to_str(&esi, buf, sizeof(buf)), | |
2310 | ipaddr2str(&originator_ip, buf1, sizeof(buf1))); | |
2311 | ||
2312 | if (cmd == ZEBRA_LOCAL_ES_ADD) | |
2313 | bgp_evpn_local_es_add(bgp, &esi, &originator_ip); | |
2314 | else | |
2315 | bgp_evpn_local_es_del(bgp, &esi, &originator_ip); | |
2316 | return 0; | |
2317 | } | |
2318 | ||
fe1dc5a3 MK |
2319 | static int bgp_zebra_process_local_l3vni(int cmd, struct zclient *zclient, |
2320 | zebra_size_t length, vrf_id_t vrf_id) | |
2321 | { | |
c48d9f5f | 2322 | int filter = 0; |
fe1dc5a3 | 2323 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2324 | vni_t l3vni = 0; |
fe1dc5a3 | 2325 | struct ethaddr rmac; |
b67a60d2 | 2326 | struct in_addr originator_ip; |
fe1dc5a3 MK |
2327 | struct stream *s; |
2328 | ||
2329 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
b67a60d2 | 2330 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2331 | s = zclient->ibuf; |
2332 | l3vni = stream_getl(s); | |
b67a60d2 | 2333 | if (cmd == ZEBRA_L3VNI_ADD) { |
fe1dc5a3 | 2334 | stream_get(&rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2335 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2336 | stream_get(&filter, s, sizeof(int)); |
b67a60d2 | 2337 | } |
fe1dc5a3 MK |
2338 | |
2339 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c48d9f5f | 2340 | zlog_debug("Rx L3-VNI %s VRF %s VNI %u RMAC %s filter %s", |
fe1dc5a3 | 2341 | (cmd == ZEBRA_L3VNI_ADD) ? "add" : "del", |
996c9314 | 2342 | vrf_id_to_name(vrf_id), l3vni, |
c48d9f5f MK |
2343 | prefix_mac2str(&rmac, buf, sizeof(buf)), |
2344 | filter ? "prefix-routes-only" : "none"); | |
fe1dc5a3 MK |
2345 | |
2346 | if (cmd == ZEBRA_L3VNI_ADD) | |
c48d9f5f MK |
2347 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &rmac, originator_ip, |
2348 | filter); | |
fe1dc5a3 MK |
2349 | else |
2350 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); | |
2351 | ||
2352 | return 0; | |
2353 | } | |
2354 | ||
d62a17ae | 2355 | static int bgp_zebra_process_local_vni(int command, struct zclient *zclient, |
2356 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 2357 | { |
d62a17ae | 2358 | struct stream *s; |
2359 | vni_t vni; | |
2360 | struct bgp *bgp; | |
a4d82a8a | 2361 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2362 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
d62a17ae | 2363 | |
2364 | s = zclient->ibuf; | |
2365 | vni = stream_getl(s); | |
29c53922 | 2366 | if (command == ZEBRA_VNI_ADD) { |
d62a17ae | 2367 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2368 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
2369 | } | |
2370 | ||
d62a17ae | 2371 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2372 | if (!bgp) | |
2373 | return 0; | |
2374 | ||
2375 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 MK |
2376 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
2377 | (command == ZEBRA_VNI_ADD) ? "add" : "del", | |
a4d82a8a PZ |
2378 | vrf_id_to_name(vrf_id), vni, |
2379 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2380 | |
2381 | if (command == ZEBRA_VNI_ADD) | |
2382 | return bgp_evpn_local_vni_add( | |
29c53922 MK |
2383 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
2384 | tenant_vrf_id); | |
d62a17ae | 2385 | else |
2386 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2387 | } |
2388 | ||
d62a17ae | 2389 | static int bgp_zebra_process_local_macip(int command, struct zclient *zclient, |
2390 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 2391 | { |
d62a17ae | 2392 | struct stream *s; |
2393 | vni_t vni; | |
2394 | struct bgp *bgp; | |
2395 | struct ethaddr mac; | |
2396 | struct ipaddr ip; | |
2397 | int ipa_len; | |
2398 | char buf[ETHER_ADDR_STRLEN]; | |
2399 | char buf1[INET6_ADDRSTRLEN]; | |
d7c0a89a | 2400 | uint8_t flags; |
d62a17ae | 2401 | |
2402 | memset(&ip, 0, sizeof(ip)); | |
2403 | s = zclient->ibuf; | |
2404 | vni = stream_getl(s); | |
28328ea9 | 2405 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2406 | ipa_len = stream_getl(s); |
2407 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2408 | && ipa_len != IPV6_MAX_BYTELEN) { | |
af4c2728 | 2409 | flog_err(BGP_ERR_MACIP_LEN, |
14454c9f DS |
2410 | "%u:Recv MACIP %s with invalid IP addr length %d", |
2411 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
2412 | ipa_len); | |
d62a17ae | 2413 | return -1; |
2414 | } | |
2415 | ||
2416 | if (ipa_len) { | |
2417 | ip.ipa_type = | |
2418 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2419 | stream_get(&ip.ip.addr, s, ipa_len); | |
2420 | } | |
1a98c087 | 2421 | flags = stream_getc(s); |
d62a17ae | 2422 | |
2423 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2424 | if (!bgp) | |
2425 | return 0; | |
2426 | ||
2427 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1a98c087 MK |
2428 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u", |
2429 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
2430 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), | |
d62a17ae | 2431 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni); |
2432 | ||
2433 | if (command == ZEBRA_MACIP_ADD) | |
1a98c087 | 2434 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, flags); |
d62a17ae | 2435 | else |
2436 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip); | |
128ea8ab | 2437 | } |
6aeb9e78 | 2438 | |
a4d82a8a | 2439 | static void bgp_zebra_process_local_ip_prefix(int cmd, struct zclient *zclient, |
31310b25 MK |
2440 | zebra_size_t length, |
2441 | vrf_id_t vrf_id) | |
2442 | { | |
2443 | struct stream *s = NULL; | |
2444 | struct bgp *bgp_vrf = NULL; | |
2445 | struct prefix p; | |
2446 | char buf[PREFIX_STRLEN]; | |
2447 | ||
2448 | memset(&p, 0, sizeof(struct prefix)); | |
2449 | s = zclient->ibuf; | |
2450 | stream_get(&p, s, sizeof(struct prefix)); | |
2451 | ||
2452 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2453 | if (!bgp_vrf) | |
2454 | return; | |
2455 | ||
2456 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2457 | zlog_debug("Recv prefix %s %s on vrf %s", | |
2458 | prefix2str(&p, buf, sizeof(buf)), | |
2459 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
2460 | vrf_id_to_name(vrf_id)); | |
2461 | ||
2462 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2463 | ||
2464 | if (p.family == AF_INET) | |
a4d82a8a PZ |
2465 | return bgp_evpn_advertise_type5_route( |
2466 | bgp_vrf, &p, NULL, AFI_IP, SAFI_UNICAST); | |
31310b25 | 2467 | else |
a4d82a8a PZ |
2468 | return bgp_evpn_advertise_type5_route( |
2469 | bgp_vrf, &p, NULL, AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2470 | |
2471 | } else { | |
2472 | if (p.family == AF_INET) | |
a4d82a8a PZ |
2473 | return bgp_evpn_withdraw_type5_route( |
2474 | bgp_vrf, &p, AFI_IP, SAFI_UNICAST); | |
31310b25 | 2475 | else |
a4d82a8a PZ |
2476 | return bgp_evpn_withdraw_type5_route( |
2477 | bgp_vrf, &p, AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2478 | } |
2479 | } | |
2480 | ||
955bfd98 PZ |
2481 | static void bgp_zebra_process_label_chunk( |
2482 | int cmd, | |
2483 | struct zclient *zclient, | |
2484 | zebra_size_t length, | |
2485 | vrf_id_t vrf_id) | |
2486 | { | |
2487 | struct stream *s = NULL; | |
2488 | uint8_t response_keep; | |
2489 | uint32_t first; | |
2490 | uint32_t last; | |
aec865e4 FR |
2491 | uint8_t proto; |
2492 | unsigned short instance; | |
955bfd98 PZ |
2493 | |
2494 | s = zclient->ibuf; | |
aec865e4 FR |
2495 | STREAM_GETC(s, proto); |
2496 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2497 | STREAM_GETC(s, response_keep); |
2498 | STREAM_GETL(s, first); | |
2499 | STREAM_GETL(s, last); | |
2500 | ||
aec865e4 | 2501 | if (zclient->redist_default != proto) { |
af4c2728 | 2502 | flog_err(BGP_ERR_LM_ERROR, "Got LM msg with wrong proto %u", |
14454c9f | 2503 | proto); |
aec865e4 FR |
2504 | return; |
2505 | } | |
2506 | if (zclient->instance != instance) { | |
af4c2728 | 2507 | flog_err(BGP_ERR_LM_ERROR, "Got LM msg with wrong instance %u", |
14454c9f | 2508 | proto); |
aec865e4 FR |
2509 | return; |
2510 | } | |
2511 | ||
955bfd98 PZ |
2512 | if (first > last || |
2513 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2514 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2515 | ||
af4c2728 | 2516 | flog_err(BGP_ERR_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
14454c9f | 2517 | __func__, first, last); |
955bfd98 PZ |
2518 | return; |
2519 | } | |
2520 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2521 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2522 | first, last, response_keep); | |
2523 | } | |
2524 | ||
e70e9f8e | 2525 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2526 | |
2527 | stream_failure: /* for STREAM_GETX */ | |
2528 | return; | |
2529 | } | |
2530 | ||
342213ea DS |
2531 | extern struct zebra_privs_t bgpd_privs; |
2532 | ||
b59e5b81 | 2533 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2534 | { |
d62a17ae | 2535 | zclient_num_connects = 0; |
2536 | ||
2537 | /* Set default values. */ | |
e1a1880d | 2538 | zclient = zclient_new_notify(master, &zclient_options_default); |
342213ea | 2539 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2540 | zclient->zebra_connected = bgp_zebra_connected; |
2541 | zclient->router_id_update = bgp_router_id_update; | |
2542 | zclient->interface_add = bgp_interface_add; | |
2543 | zclient->interface_delete = bgp_interface_delete; | |
2544 | zclient->interface_address_add = bgp_interface_address_add; | |
2545 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2546 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2547 | zclient->interface_nbr_address_delete = | |
2548 | bgp_interface_nbr_address_delete; | |
2549 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2550 | zclient->redistribute_route_add = zebra_read_route; |
2551 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2552 | zclient->interface_up = bgp_interface_up; |
2553 | zclient->interface_down = bgp_interface_down; | |
d62a17ae | 2554 | zclient->nexthop_update = bgp_read_nexthop_update; |
2555 | zclient->import_check_update = bgp_read_import_check_update; | |
2556 | zclient->fec_update = bgp_read_fec_update; | |
50f74cf1 | 2557 | zclient->local_es_add = bgp_zebra_process_local_es; |
2558 | zclient->local_es_del = bgp_zebra_process_local_es; | |
d62a17ae | 2559 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
2560 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
2561 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2562 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2563 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2564 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2565 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2566 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2567 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
2568 | zclient->rule_notify_owner = rule_notify_owner; |
2569 | zclient->ipset_notify_owner = ipset_notify_owner; | |
2570 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 2571 | zclient->iptable_notify_owner = iptable_notify_owner; |
b59e5b81 | 2572 | zclient->instance = instance; |
718e3744 | 2573 | } |
bb86c601 | 2574 | |
d62a17ae | 2575 | void bgp_zebra_destroy(void) |
bb86c601 | 2576 | { |
d62a17ae | 2577 | if (zclient == NULL) |
2578 | return; | |
2579 | zclient_stop(zclient); | |
2580 | zclient_free(zclient); | |
2581 | zclient = NULL; | |
bb86c601 | 2582 | } |
afbb1c59 | 2583 | |
d62a17ae | 2584 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2585 | { |
d62a17ae | 2586 | return zclient_num_connects; |
afbb1c59 | 2587 | } |
30d50e6d PG |
2588 | |
2589 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, bool install) | |
2590 | { | |
2591 | struct stream *s; | |
2592 | ||
2593 | if (pbra->install_in_progress) | |
2594 | return; | |
f0936054 PG |
2595 | if (BGP_DEBUG(zebra, ZEBRA)) |
2596 | zlog_debug("%s: table %d fwmark %d %d", | |
2597 | __PRETTY_FUNCTION__, | |
2598 | pbra->table_id, pbra->fwmark, install); | |
30d50e6d PG |
2599 | s = zclient->obuf; |
2600 | stream_reset(s); | |
2601 | ||
2602 | zclient_create_header(s, | |
2603 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
2604 | VRF_DEFAULT); | |
2605 | stream_putl(s, 1); /* send one pbr action */ | |
2606 | ||
2607 | bgp_encode_pbr_rule_action(s, pbra); | |
2608 | ||
2609 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2610 | if (!zclient_send_message(zclient) && install) | |
2611 | pbra->install_in_progress = true; | |
2612 | } | |
2613 | ||
2614 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
2615 | { | |
2616 | struct stream *s; | |
2617 | ||
2618 | if (pbrim->install_in_progress) | |
2619 | return; | |
f0936054 | 2620 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2621 | zlog_debug("%s: name %s type %d %d, ID %u", |
f0936054 | 2622 | __PRETTY_FUNCTION__, |
88055124 PG |
2623 | pbrim->ipset_name, pbrim->type, |
2624 | install, pbrim->unique); | |
30d50e6d PG |
2625 | s = zclient->obuf; |
2626 | stream_reset(s); | |
2627 | ||
2628 | zclient_create_header(s, | |
2629 | install ? ZEBRA_IPSET_CREATE : | |
2630 | ZEBRA_IPSET_DESTROY, | |
2631 | VRF_DEFAULT); | |
2632 | ||
2633 | stream_putl(s, 1); /* send one pbr action */ | |
2634 | ||
2635 | bgp_encode_pbr_ipset_match(s, pbrim); | |
2636 | ||
2637 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2638 | if (!zclient_send_message(zclient) && install) | |
2639 | pbrim->install_in_progress = true; | |
2640 | } | |
2641 | ||
2642 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
2643 | bool install) | |
2644 | { | |
2645 | struct stream *s; | |
2646 | ||
2647 | if (pbrime->install_in_progress) | |
2648 | return; | |
f0936054 | 2649 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2650 | zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__, |
f0936054 | 2651 | pbrime->backpointer->ipset_name, |
88055124 | 2652 | pbrime->unique, install, pbrime->unique); |
30d50e6d PG |
2653 | s = zclient->obuf; |
2654 | stream_reset(s); | |
2655 | ||
2656 | zclient_create_header(s, | |
2657 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
2658 | ZEBRA_IPSET_ENTRY_DELETE, | |
2659 | VRF_DEFAULT); | |
2660 | ||
2661 | stream_putl(s, 1); /* send one pbr action */ | |
2662 | ||
2663 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
2664 | ||
2665 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2666 | if (!zclient_send_message(zclient) && install) | |
2667 | pbrime->install_in_progress = true; | |
2668 | } | |
c16a0a62 | 2669 | |
4762c213 PG |
2670 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s) |
2671 | { | |
2672 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2673 | struct bgp_pbr_interface_head *head; | |
2674 | struct bgp_pbr_interface *pbr_if; | |
2675 | struct interface *ifp; | |
2676 | ||
2677 | if (!bgp_pbr_cfg) | |
2678 | return; | |
2679 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2680 | ||
2681 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2682 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); | |
2683 | if (ifp) | |
2684 | stream_putl(s, ifp->ifindex); | |
2685 | } | |
2686 | } | |
2687 | ||
2688 | static int bgp_pbr_get_ifnumber(struct bgp *bgp) | |
2689 | { | |
2690 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2691 | struct bgp_pbr_interface_head *head; | |
2692 | struct bgp_pbr_interface *pbr_if; | |
2693 | int cnt = 0; | |
2694 | ||
2695 | if (!bgp_pbr_cfg) | |
2696 | return 0; | |
2697 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2698 | ||
2699 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2700 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) | |
2701 | cnt++; | |
2702 | } | |
2703 | return cnt; | |
2704 | } | |
2705 | ||
c16a0a62 PG |
2706 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
2707 | struct bgp_pbr_match *pbm, | |
2708 | bool install) | |
2709 | { | |
2710 | struct stream *s; | |
b5c40105 | 2711 | int ret = 0; |
4762c213 | 2712 | int nb_interface; |
c16a0a62 PG |
2713 | |
2714 | if (pbm->install_iptable_in_progress) | |
2715 | return; | |
f0936054 | 2716 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2717 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", |
f0936054 | 2718 | __PRETTY_FUNCTION__, pbm->ipset_name, |
88055124 PG |
2719 | pbm->type, pba->fwmark, install, |
2720 | pbm->unique2); | |
c16a0a62 PG |
2721 | s = zclient->obuf; |
2722 | stream_reset(s); | |
2723 | ||
2724 | zclient_create_header(s, | |
2725 | install ? ZEBRA_IPTABLE_ADD : | |
2726 | ZEBRA_IPTABLE_DELETE, | |
2727 | VRF_DEFAULT); | |
2728 | ||
2729 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
4762c213 PG |
2730 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp); |
2731 | stream_putl(s, nb_interface); | |
2732 | if (nb_interface) | |
2733 | bgp_encode_pbr_interface_list(pba->bgp, s); | |
c16a0a62 | 2734 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
2735 | ret = zclient_send_message(zclient); |
2736 | if (install) { | |
2737 | if (ret) | |
2738 | pba->refcnt++; | |
2739 | else | |
2740 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 2741 | } |
c16a0a62 | 2742 | } |
f7df1907 PG |
2743 | |
2744 | /* inject in table <table_id> a default route to: | |
2745 | * - if nexthop IP is present : to this nexthop | |
2746 | * - if vrf is different from local : to the matching VRF | |
2747 | */ | |
2748 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
2749 | afi_t afi, uint32_t table_id, bool announce) | |
2750 | { | |
2751 | struct zapi_nexthop *api_nh; | |
2752 | struct zapi_route api; | |
2753 | struct prefix p; | |
2754 | ||
2755 | if (!nh || nh->type != NEXTHOP_TYPE_IPV4 | |
2756 | || nh->vrf_id == VRF_UNKNOWN) | |
2757 | return; | |
2758 | memset(&p, 0, sizeof(struct prefix)); | |
2759 | /* default route */ | |
2760 | if (afi != AFI_IP) | |
2761 | return; | |
2762 | p.family = AF_INET; | |
2763 | memset(&api, 0, sizeof(api)); | |
2764 | api.vrf_id = bgp->vrf_id; | |
2765 | api.type = ZEBRA_ROUTE_BGP; | |
2766 | api.safi = SAFI_UNICAST; | |
2767 | api.prefix = p; | |
2768 | api.tableid = table_id; | |
2769 | api.nexthop_num = 1; | |
2770 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
2771 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
2772 | api_nh = &api.nexthops[0]; | |
2773 | ||
2774 | /* redirect IP */ | |
2775 | if (nh->gate.ipv4.s_addr) { | |
2776 | char buff[PREFIX_STRLEN]; | |
2777 | ||
2778 | api_nh->vrf_id = nh->vrf_id; | |
2779 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
2780 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
2781 | ||
2782 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
2783 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2784 | zlog_info("BGP: %s default route to %s table %d (redirect IP)", |
2785 | announce ? "adding" : "withdrawing", | |
f7df1907 PG |
2786 | buff, table_id); |
2787 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2788 | : ZEBRA_ROUTE_DELETE, | |
2789 | zclient, &api); | |
2790 | } else if (nh->vrf_id != bgp->vrf_id) { | |
2791 | struct vrf *vrf; | |
eb4244f8 | 2792 | struct interface *ifp; |
f7df1907 | 2793 | |
eb4244f8 | 2794 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
2795 | if (!vrf) |
2796 | return; | |
eb4244f8 PG |
2797 | /* create default route with interface <VRF> |
2798 | * with nexthop-vrf <VRF> | |
f7df1907 | 2799 | */ |
eb4244f8 PG |
2800 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
2801 | if (!ifp) | |
2802 | return; | |
2803 | api_nh->vrf_id = nh->vrf_id; | |
2804 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
2805 | api_nh->ifindex = ifp->ifindex; | |
2806 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2807 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
2808 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
2809 | vrf->name, table_id); |
2810 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2811 | : ZEBRA_ROUTE_DELETE, | |
2812 | zclient, &api); | |
f7df1907 PG |
2813 | return; |
2814 | } | |
2815 | } |