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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 | |
bb4ef1ae DS |
71 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
72 | zlog_debug("%s: No zebra instance to talk to, not installing information", | |
73 | __PRETTY_FUNCTION__); | |
d62a17ae | 74 | return 0; |
bb4ef1ae | 75 | } |
ad4cbda1 | 76 | |
d62a17ae | 77 | return 1; |
ad4cbda1 | 78 | } |
79 | ||
afbb1c59 LB |
80 | int zclient_num_connects; |
81 | ||
18a6dce6 | 82 | /* Router-id update message from zebra. */ |
d62a17ae | 83 | static int bgp_router_id_update(int command, struct zclient *zclient, |
84 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 85 | { |
d62a17ae | 86 | struct prefix router_id; |
718e3744 | 87 | |
d62a17ae | 88 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 89 | |
d62a17ae | 90 | if (BGP_DEBUG(zebra, ZEBRA)) { |
91 | char buf[PREFIX2STR_BUFFER]; | |
92 | prefix2str(&router_id, buf, sizeof(buf)); | |
93 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
94 | } | |
a39275d7 | 95 | |
d62a17ae | 96 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
97 | return 0; | |
718e3744 | 98 | } |
99 | ||
fb018d25 | 100 | /* Nexthop update message from zebra. */ |
d62a17ae | 101 | static int bgp_read_nexthop_update(int command, struct zclient *zclient, |
102 | zebra_size_t length, vrf_id_t vrf_id) | |
fb018d25 | 103 | { |
d62a17ae | 104 | bgp_parse_nexthop_update(command, vrf_id); |
105 | return 0; | |
078430f6 DS |
106 | } |
107 | ||
d62a17ae | 108 | static int bgp_read_import_check_update(int command, struct zclient *zclient, |
109 | zebra_size_t length, vrf_id_t vrf_id) | |
078430f6 | 110 | { |
d62a17ae | 111 | bgp_parse_nexthop_update(command, vrf_id); |
112 | return 0; | |
fb018d25 DS |
113 | } |
114 | ||
4a04e5f7 | 115 | /* Set or clear interface on which unnumbered neighbor is configured. This |
116 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
117 | * interface. | |
118 | */ | |
d62a17ae | 119 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
120 | struct interface *upd_ifp) | |
4a04e5f7 | 121 | { |
d62a17ae | 122 | struct listnode *node, *nnode; |
123 | struct peer *peer; | |
124 | ||
125 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
126 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
127 | if (upd_ifp) { | |
128 | peer->ifp = upd_ifp; | |
129 | bgp_zebra_initiate_radv(bgp, peer); | |
130 | } else { | |
131 | bgp_zebra_terminate_radv(bgp, peer); | |
132 | peer->ifp = upd_ifp; | |
133 | } | |
134 | } | |
135 | } | |
4a04e5f7 | 136 | } |
137 | ||
d62a17ae | 138 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
139 | zebra_size_t length) | |
cd1964ff | 140 | { |
d62a17ae | 141 | bgp_parse_fec_update(); |
142 | return 0; | |
cd1964ff DS |
143 | } |
144 | ||
d62a17ae | 145 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 146 | { |
d62a17ae | 147 | struct listnode *node, *nnode; |
148 | struct peer *peer; | |
149 | ||
150 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
151 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
152 | && peer->status != Established) { | |
153 | if (peer_active(peer)) | |
154 | BGP_EVENT_ADD(peer, BGP_Stop); | |
155 | BGP_EVENT_ADD(peer, BGP_Start); | |
156 | } | |
157 | } | |
a80beece DS |
158 | } |
159 | ||
d62a17ae | 160 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 161 | { |
d62a17ae | 162 | struct listnode *node; |
163 | struct connected *connected; | |
164 | struct interface *ifp; | |
165 | struct prefix *p; | |
166 | ||
167 | /* Kick-off the FSM for any relevant peers only if there is a | |
168 | * valid local address on the interface. | |
169 | */ | |
170 | ifp = ifc->ifp; | |
171 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
172 | p = connected->address; | |
173 | if (p->family == AF_INET6 | |
174 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
175 | break; | |
176 | } | |
177 | if (!connected) | |
178 | return; | |
179 | ||
180 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
181 | } |
182 | ||
d62a17ae | 183 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
184 | int del) | |
a80beece | 185 | { |
d62a17ae | 186 | struct listnode *node, *nnode; |
187 | struct peer *peer; | |
188 | struct interface *ifp; | |
189 | ||
190 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
191 | if (peer->conf_if | |
192 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
193 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
194 | BGP_EVENT_ADD(peer, BGP_Stop); | |
195 | } | |
196 | } | |
197 | /* Free neighbor also, if we're asked to. */ | |
198 | if (del) { | |
199 | ifp = ifc->ifp; | |
200 | listnode_delete(ifp->nbr_connected, ifc); | |
201 | nbr_connected_free(ifc); | |
202 | } | |
a80beece DS |
203 | } |
204 | ||
718e3744 | 205 | /* Inteface addition message from zebra. */ |
d62a17ae | 206 | static int bgp_interface_add(int command, struct zclient *zclient, |
207 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 208 | { |
d62a17ae | 209 | struct interface *ifp; |
210 | struct bgp *bgp; | |
718e3744 | 211 | |
d62a17ae | 212 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
213 | if (!ifp) // unexpected | |
214 | return 0; | |
718e3744 | 215 | |
d62a17ae | 216 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
217 | zlog_debug("Rx Intf add VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 218 | |
d62a17ae | 219 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
220 | if (!bgp) | |
221 | return 0; | |
4a04e5f7 | 222 | |
d62a17ae | 223 | bgp_update_interface_nbrs(bgp, ifp, ifp); |
224 | return 0; | |
718e3744 | 225 | } |
226 | ||
d62a17ae | 227 | static int bgp_interface_delete(int command, struct zclient *zclient, |
228 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 229 | { |
d62a17ae | 230 | struct stream *s; |
231 | struct interface *ifp; | |
232 | struct bgp *bgp; | |
718e3744 | 233 | |
2f9123e0 | 234 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 235 | |
d62a17ae | 236 | s = zclient->ibuf; |
237 | ifp = zebra_interface_state_read(s, vrf_id); | |
238 | if (!ifp) /* This may happen if we've just unregistered for a VRF. */ | |
239 | return 0; | |
a4499b83 | 240 | |
d62a17ae | 241 | if (BGP_DEBUG(zebra, ZEBRA)) |
242 | zlog_debug("Rx Intf del VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 243 | |
85751d1d DS |
244 | if (bgp) |
245 | bgp_update_interface_nbrs(bgp, ifp, NULL); | |
64745052 | 246 | |
ff880b78 | 247 | if_set_index(ifp, IFINDEX_INTERNAL); |
d62a17ae | 248 | return 0; |
718e3744 | 249 | } |
250 | ||
d62a17ae | 251 | static int bgp_interface_up(int command, struct zclient *zclient, |
252 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 253 | { |
d62a17ae | 254 | struct stream *s; |
255 | struct interface *ifp; | |
256 | struct connected *c; | |
257 | struct nbr_connected *nc; | |
258 | struct listnode *node, *nnode; | |
259 | struct bgp *bgp; | |
6aeb9e78 | 260 | |
2f9123e0 | 261 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 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 | |
85751d1d DS |
272 | if (!bgp) |
273 | return 0; | |
274 | ||
d62a17ae | 275 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
276 | bgp_connected_add(bgp, c); | |
718e3744 | 277 | |
d62a17ae | 278 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
279 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 280 | |
d62a17ae | 281 | return 0; |
718e3744 | 282 | } |
283 | ||
d62a17ae | 284 | static int bgp_interface_down(int command, struct zclient *zclient, |
285 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 286 | { |
d62a17ae | 287 | struct stream *s; |
288 | struct interface *ifp; | |
289 | struct connected *c; | |
290 | struct nbr_connected *nc; | |
291 | struct listnode *node, *nnode; | |
292 | struct bgp *bgp; | |
c19fe3c7 | 293 | struct peer *peer; |
6aeb9e78 | 294 | |
2f9123e0 | 295 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 296 | |
d62a17ae | 297 | s = zclient->ibuf; |
298 | ifp = zebra_interface_state_read(s, vrf_id); | |
299 | if (!ifp) | |
300 | return 0; | |
718e3744 | 301 | |
d62a17ae | 302 | if (BGP_DEBUG(zebra, ZEBRA)) |
303 | zlog_debug("Rx Intf down VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 304 | |
85751d1d DS |
305 | if (!bgp) |
306 | return 0; | |
307 | ||
d62a17ae | 308 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
309 | bgp_connected_delete(bgp, c); | |
718e3744 | 310 | |
d62a17ae | 311 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
312 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 313 | |
d62a17ae | 314 | /* Fast external-failover */ |
c19fe3c7 | 315 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 316 | |
d62a17ae | 317 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 318 | #if defined(HAVE_CUMULUS) |
d62a17ae | 319 | /* Take down directly connected EBGP peers as well as |
320 | * 1-hop BFD | |
321 | * tracked (directly connected) IBGP peers. | |
322 | */ | |
323 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1) | |
324 | && (!peer->bfd_info | |
325 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 326 | #else |
d62a17ae | 327 | /* Take down directly connected EBGP peers */ |
328 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
8c4f6381 | 329 | #endif |
d62a17ae | 330 | continue; |
718e3744 | 331 | |
d62a17ae | 332 | if (ifp == peer->nexthop.ifp) { |
333 | BGP_EVENT_ADD(peer, BGP_Stop); | |
334 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
335 | } | |
336 | } | |
337 | } | |
718e3744 | 338 | |
d62a17ae | 339 | return 0; |
718e3744 | 340 | } |
341 | ||
d62a17ae | 342 | static int bgp_interface_address_add(int command, struct zclient *zclient, |
343 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 344 | { |
d62a17ae | 345 | struct connected *ifc; |
2f9123e0 DS |
346 | struct bgp *bgp; |
347 | ||
348 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 349 | |
350 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); | |
351 | ||
352 | if (ifc == NULL) | |
353 | return 0; | |
354 | ||
355 | if (bgp_debug_zebra(ifc->address)) { | |
356 | char buf[PREFIX2STR_BUFFER]; | |
357 | prefix2str(ifc->address, buf, sizeof(buf)); | |
358 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
359 | ifc->ifp->name, buf); | |
360 | } | |
361 | ||
85751d1d DS |
362 | if (!bgp) |
363 | return 0; | |
364 | ||
d62a17ae | 365 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 366 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 367 | |
d62a17ae | 368 | /* If we have learnt of any neighbors on this interface, |
369 | * check to kick off any BGP interface-based neighbors, | |
370 | * but only if this is a link-local address. | |
371 | */ | |
372 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
373 | && !list_isempty(ifc->ifp->nbr_connected)) | |
374 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
375 | } | |
376 | ||
377 | return 0; | |
718e3744 | 378 | } |
379 | ||
d62a17ae | 380 | static int bgp_interface_address_delete(int command, struct zclient *zclient, |
381 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 382 | { |
d62a17ae | 383 | struct connected *ifc; |
384 | struct bgp *bgp; | |
6aeb9e78 | 385 | |
2f9123e0 | 386 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 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 | |
85751d1d | 400 | if (bgp && 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; | |
c19fe3c7 | 477 | struct peer *peer; |
bfcd43b2 | 478 | |
d62a17ae | 479 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
480 | &new_vrf_id); | |
481 | if (!ifp) | |
482 | return 0; | |
bfcd43b2 | 483 | |
d62a17ae | 484 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
485 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
486 | ifp->name, new_vrf_id); | |
bfcd43b2 | 487 | |
d62a17ae | 488 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 489 | |
85751d1d DS |
490 | if (bgp) { |
491 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
492 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 493 | |
85751d1d DS |
494 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
495 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 496 | |
85751d1d DS |
497 | /* Fast external-failover */ |
498 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
499 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
500 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
501 | continue; | |
bfcd43b2 | 502 | |
85751d1d DS |
503 | if (ifp == peer->nexthop.ifp) |
504 | BGP_EVENT_ADD(peer, BGP_Stop); | |
505 | } | |
d62a17ae | 506 | } |
507 | } | |
bfcd43b2 | 508 | |
d62a17ae | 509 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 510 | |
d62a17ae | 511 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
512 | if (!bgp) | |
513 | return 0; | |
bfcd43b2 | 514 | |
d62a17ae | 515 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
516 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 517 | |
d62a17ae | 518 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
519 | bgp_nbr_connected_add(bgp, nc); | |
520 | return 0; | |
bfcd43b2 | 521 | } |
522 | ||
718e3744 | 523 | /* Zebra route add and delete treatment. */ |
74489921 RW |
524 | static int zebra_read_route(int command, struct zclient *zclient, |
525 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 526 | { |
9de1f7ff | 527 | enum nexthop_types_t nhtype; |
74489921 RW |
528 | struct zapi_route api; |
529 | union g_addr nexthop; | |
9de1f7ff | 530 | ifindex_t ifindex; |
74489921 | 531 | int add, i; |
d62a17ae | 532 | struct bgp *bgp; |
533 | ||
534 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
535 | if (!bgp) | |
536 | return 0; | |
537 | ||
74489921 RW |
538 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
539 | return -1; | |
d62a17ae | 540 | |
74489921 RW |
541 | /* we completely ignore srcdest routes for now. */ |
542 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
543 | return 0; | |
d62a17ae | 544 | |
74489921 RW |
545 | /* ignore link-local address. */ |
546 | if (api.prefix.family == AF_INET6 | |
547 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
548 | return 0; | |
d62a17ae | 549 | |
74489921 RW |
550 | nexthop = api.nexthops[0].gate; |
551 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 552 | nhtype = api.nexthops[0].type; |
d62a17ae | 553 | |
74489921 RW |
554 | add = (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
555 | if (add) { | |
d62a17ae | 556 | /* |
557 | * The ADD message is actually an UPDATE and there is no | |
558 | * explicit DEL | |
559 | * for a prior redistributed route, if any. So, perform an | |
560 | * implicit | |
561 | * DEL processing for the same redistributed route from any | |
562 | * other | |
563 | * source type. | |
564 | */ | |
565 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
566 | if (i != api.type) | |
74489921 | 567 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 568 | api.instance); |
569 | } | |
570 | ||
571 | /* Now perform the add/update. */ | |
74489921 | 572 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
573 | nhtype, api.metric, api.type, api.instance, |
574 | api.tag); | |
d62a17ae | 575 | } else { |
74489921 RW |
576 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
577 | api.instance); | |
a39275d7 | 578 | } |
d62a17ae | 579 | |
74489921 RW |
580 | if (bgp_debug_zebra(&api.prefix)) { |
581 | char buf[2][PREFIX_STRLEN]; | |
582 | ||
583 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
77e62f2b | 584 | if (add) { |
585 | inet_ntop(api.prefix.family, &nexthop, buf[1], | |
586 | sizeof(buf[1])); | |
587 | zlog_debug( | |
588 | "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI, | |
589 | vrf_id, zebra_route_string(api.type), | |
590 | api.instance, buf[0], buf[1], nhtype, | |
591 | ifindex, api.metric, api.tag); | |
592 | } else { | |
593 | zlog_debug( | |
594 | "Rx route DEL VRF %u %s[%d] %s", | |
595 | vrf_id, zebra_route_string(api.type), | |
596 | api.instance, buf[0]); | |
597 | } | |
d62a17ae | 598 | } |
599 | ||
600 | return 0; | |
718e3744 | 601 | } |
6b0655a2 | 602 | |
d62a17ae | 603 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 604 | { |
f4e14fdb | 605 | struct vrf *vrf; |
d62a17ae | 606 | struct listnode *cnode; |
607 | struct interface *ifp; | |
608 | struct connected *connected; | |
609 | struct prefix_ipv4 p; | |
610 | struct prefix *cp; | |
611 | ||
f4e14fdb RW |
612 | vrf = vrf_lookup_by_id(vrf_id); |
613 | if (!vrf) | |
614 | return NULL; | |
615 | ||
d62a17ae | 616 | p.family = AF_INET; |
617 | p.prefix = *addr; | |
618 | p.prefixlen = IPV4_MAX_BITLEN; | |
619 | ||
451fda4f | 620 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 621 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
622 | cp = connected->address; | |
623 | ||
624 | if (cp->family == AF_INET) | |
625 | if (prefix_match(cp, (struct prefix *)&p)) | |
626 | return ifp; | |
627 | } | |
718e3744 | 628 | } |
d62a17ae | 629 | return NULL; |
718e3744 | 630 | } |
631 | ||
d62a17ae | 632 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 633 | { |
f4e14fdb | 634 | struct vrf *vrf; |
d62a17ae | 635 | struct listnode *cnode; |
636 | struct interface *ifp; | |
637 | struct connected *connected; | |
638 | struct prefix *cp; | |
639 | ||
f4e14fdb RW |
640 | vrf = vrf_lookup_by_id(vrf_id); |
641 | if (!vrf) | |
642 | return NULL; | |
643 | ||
451fda4f | 644 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 645 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
646 | cp = connected->address; | |
647 | ||
648 | if (cp->family == AF_INET) | |
649 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
650 | return ifp; | |
651 | } | |
718e3744 | 652 | } |
d62a17ae | 653 | return NULL; |
718e3744 | 654 | } |
655 | ||
d62a17ae | 656 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
657 | vrf_id_t vrf_id) | |
718e3744 | 658 | { |
f4e14fdb | 659 | struct vrf *vrf; |
d62a17ae | 660 | struct listnode *cnode; |
661 | struct interface *ifp; | |
662 | struct connected *connected; | |
663 | struct prefix_ipv6 p; | |
664 | struct prefix *cp; | |
665 | ||
f4e14fdb RW |
666 | vrf = vrf_lookup_by_id(vrf_id); |
667 | if (!vrf) | |
668 | return NULL; | |
669 | ||
d62a17ae | 670 | p.family = AF_INET6; |
671 | p.prefix = *addr; | |
672 | p.prefixlen = IPV6_MAX_BITLEN; | |
673 | ||
451fda4f | 674 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 675 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
676 | cp = connected->address; | |
677 | ||
678 | if (cp->family == AF_INET6) | |
679 | if (prefix_match(cp, (struct prefix *)&p)) { | |
680 | if (IN6_IS_ADDR_LINKLOCAL( | |
681 | &cp->u.prefix6)) { | |
682 | if (ifindex == ifp->ifindex) | |
683 | return ifp; | |
684 | } else | |
685 | return ifp; | |
686 | } | |
687 | } | |
718e3744 | 688 | } |
d62a17ae | 689 | return NULL; |
718e3744 | 690 | } |
691 | ||
d62a17ae | 692 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
693 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 694 | { |
f4e14fdb | 695 | struct vrf *vrf; |
d62a17ae | 696 | struct listnode *cnode; |
697 | struct interface *ifp; | |
698 | struct connected *connected; | |
699 | struct prefix *cp; | |
700 | ||
f4e14fdb RW |
701 | vrf = vrf_lookup_by_id(vrf_id); |
702 | if (!vrf) | |
703 | return NULL; | |
704 | ||
451fda4f | 705 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 706 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
707 | cp = connected->address; | |
708 | ||
709 | if (cp->family == AF_INET6) | |
710 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
711 | if (IN6_IS_ADDR_LINKLOCAL( | |
712 | &cp->u.prefix6)) { | |
713 | if (ifindex == ifp->ifindex) | |
714 | return ifp; | |
715 | } else | |
716 | return ifp; | |
717 | } | |
718 | } | |
718e3744 | 719 | } |
d62a17ae | 720 | return NULL; |
718e3744 | 721 | } |
722 | ||
d62a17ae | 723 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 724 | { |
d62a17ae | 725 | struct listnode *cnode; |
726 | struct connected *connected; | |
727 | struct prefix *cp; | |
728 | ||
729 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
730 | cp = connected->address; | |
731 | ||
732 | if (cp->family == AF_INET6) | |
733 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
734 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
735 | return 1; | |
736 | } | |
737 | } | |
738 | return 0; | |
718e3744 | 739 | } |
740 | ||
d62a17ae | 741 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 742 | { |
d62a17ae | 743 | struct listnode *cnode; |
744 | struct connected *connected; | |
745 | struct prefix *cp; | |
746 | ||
747 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
748 | cp = connected->address; | |
749 | ||
750 | if (cp->family == AF_INET6) | |
751 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
752 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
753 | return 1; | |
754 | } | |
755 | } | |
756 | return 0; | |
718e3744 | 757 | } |
718e3744 | 758 | |
d62a17ae | 759 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 760 | { |
d62a17ae | 761 | struct listnode *cnode; |
762 | struct connected *connected; | |
763 | struct prefix *cp; | |
764 | ||
765 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
766 | cp = connected->address; | |
767 | if ((cp->family == AF_INET) | |
768 | && !ipv4_martian(&(cp->u.prefix4))) { | |
769 | *addr = cp->u.prefix4; | |
770 | return 1; | |
771 | } | |
772 | } | |
773 | return 0; | |
6ee06fa9 PM |
774 | } |
775 | ||
17cdd31e DS |
776 | |
777 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
778 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 779 | { |
d62a17ae | 780 | int ret = 0; |
781 | struct interface *ifp = NULL; | |
782 | ||
783 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
784 | ||
785 | if (!local) | |
17cdd31e | 786 | return false; |
d62a17ae | 787 | if (!remote) |
17cdd31e | 788 | return false; |
d62a17ae | 789 | |
790 | if (local->sa.sa_family == AF_INET) { | |
791 | nexthop->v4 = local->sin.sin_addr; | |
792 | if (peer->update_if) | |
793 | ifp = if_lookup_by_name(peer->update_if, | |
794 | peer->bgp->vrf_id); | |
795 | else | |
796 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
797 | peer->bgp->vrf_id); | |
718e3744 | 798 | } |
d62a17ae | 799 | if (local->sa.sa_family == AF_INET6) { |
800 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
801 | if (peer->conf_if || peer->ifname) | |
802 | ifp = if_lookup_by_name(peer->conf_if | |
803 | ? peer->conf_if | |
804 | : peer->ifname, | |
805 | peer->bgp->vrf_id); | |
806 | } else if (peer->update_if) | |
807 | ifp = if_lookup_by_name(peer->update_if, | |
808 | peer->bgp->vrf_id); | |
809 | else | |
810 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
811 | local->sin6.sin6_scope_id, | |
812 | peer->bgp->vrf_id); | |
718e3744 | 813 | } |
d62a17ae | 814 | |
17cdd31e DS |
815 | if (!ifp) { |
816 | /* | |
817 | * BGP views do not currently get proper data | |
818 | * from zebra( when attached ) to be able to | |
819 | * properly resolve nexthops, so give this | |
820 | * instance type a pass. | |
821 | */ | |
822 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
823 | return true; | |
824 | /* | |
825 | * If we have no interface data but we have established | |
826 | * some connection w/ zebra than something has gone | |
827 | * terribly terribly wrong here, so say this failed | |
828 | * If we do not any zebra connection then not | |
829 | * having a ifp pointer is ok. | |
830 | */ | |
831 | return zclient_num_connects ? false : true; | |
832 | } | |
d62a17ae | 833 | |
834 | nexthop->ifp = ifp; | |
835 | ||
836 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
837 | if (local->sa.sa_family == AF_INET) { | |
838 | /* IPv6 nexthop*/ | |
839 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
840 | ||
841 | if (!ret) { | |
842 | /* There is no global nexthop. Use link-local address as | |
843 | * both the | |
844 | * global and link-local nexthop. In this scenario, the | |
845 | * expectation | |
846 | * for interop is that the network admin would use a | |
847 | * route-map to | |
848 | * specify the global IPv6 nexthop. | |
849 | */ | |
850 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
851 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
852 | IPV6_MAX_BYTELEN); | |
853 | } else | |
854 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
855 | ||
856 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
857 | peer->shared_network = 1; | |
858 | else | |
859 | peer->shared_network = 0; | |
718e3744 | 860 | } |
718e3744 | 861 | |
d62a17ae | 862 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
863 | if (local->sa.sa_family == AF_INET6) { | |
864 | struct interface *direct = NULL; | |
865 | ||
866 | /* IPv4 nexthop. */ | |
867 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
868 | if (!ret && peer->local_id.s_addr) | |
869 | nexthop->v4 = peer->local_id; | |
870 | ||
871 | /* Global address*/ | |
872 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
873 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
874 | IPV6_MAX_BYTELEN); | |
875 | ||
876 | /* If directory connected set link-local address. */ | |
877 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
878 | remote->sin6.sin6_scope_id, | |
879 | peer->bgp->vrf_id); | |
880 | if (direct) | |
881 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
882 | } else | |
883 | /* Link-local address. */ | |
884 | { | |
885 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
886 | ||
887 | /* If there is no global address. Set link-local | |
888 | address as | |
889 | global. I know this break RFC specification... */ | |
890 | /* In this scenario, the expectation for interop is that | |
891 | * the | |
892 | * network admin would use a route-map to specify the | |
893 | * global | |
894 | * IPv6 nexthop. | |
895 | */ | |
896 | if (!ret) | |
897 | memcpy(&nexthop->v6_global, | |
898 | &local->sin6.sin6_addr, | |
899 | IPV6_MAX_BYTELEN); | |
900 | /* Always set the link-local address */ | |
901 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
902 | IPV6_MAX_BYTELEN); | |
903 | } | |
904 | ||
905 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
906 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
907 | remote->sin6.sin6_scope_id, | |
908 | peer->bgp->vrf_id)) | |
909 | peer->shared_network = 1; | |
910 | else | |
911 | peer->shared_network = 0; | |
912 | } | |
718e3744 | 913 | |
d62a17ae | 914 | /* KAME stack specific treatment. */ |
718e3744 | 915 | #ifdef KAME |
d62a17ae | 916 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
917 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
918 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
919 | } | |
920 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
921 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
922 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
923 | } | |
718e3744 | 924 | #endif /* KAME */ |
e33a4880 | 925 | |
d62a17ae | 926 | /* If we have identified the local interface, there is no error for now. |
927 | */ | |
17cdd31e | 928 | return true; |
718e3744 | 929 | } |
930 | ||
18ee8310 | 931 | static struct in6_addr * |
40381db7 | 932 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 933 | { |
d62a17ae | 934 | struct in6_addr *nexthop = NULL; |
935 | ||
936 | /* Only global address nexthop exists. */ | |
40381db7 DS |
937 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL) { |
938 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 939 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 940 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 941 | } |
d62a17ae | 942 | |
943 | /* If both global and link-local address present. */ | |
40381db7 | 944 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) { |
d62a17ae | 945 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
946 | if (path->attr->mp_nexthop_prefer_global) { |
947 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 948 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 949 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 950 | } else { |
d62a17ae | 951 | /* Workaround for Cisco's nexthop bug. */ |
952 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 DS |
953 | &path->attr->mp_nexthop_global) |
954 | && path->peer->su_remote->sa.sa_family | |
59a0f1cb | 955 | == AF_INET6) { |
d62a17ae | 956 | nexthop = |
40381db7 | 957 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 958 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 959 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 960 | ->ifindex; |
77e62f2b | 961 | } else { |
40381db7 | 962 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 963 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 964 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 965 | } |
d62a17ae | 966 | } |
967 | } | |
968 | ||
969 | return nexthop; | |
73ac8160 DS |
970 | } |
971 | ||
d62a17ae | 972 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
40381db7 | 973 | struct bgp_path_info *path) |
73ac8160 | 974 | { |
b4cb15c6 DL |
975 | route_map_result_t ret; |
976 | ||
40381db7 DS |
977 | ret = route_map_apply(map, p, RMAP_BGP, path); |
978 | bgp_attr_flush(path->attr); | |
b4cb15c6 DL |
979 | |
980 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 981 | return 1; |
982 | ||
983 | if (bgp_debug_zebra(p)) { | |
984 | if (p->family == AF_INET) { | |
985 | char buf[2][INET_ADDRSTRLEN]; | |
986 | zlog_debug( | |
987 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
988 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
989 | sizeof(buf[0])), | |
990 | p->prefixlen, | |
40381db7 | 991 | inet_ntop(AF_INET, &path->attr->nexthop, buf[1], |
d62a17ae | 992 | sizeof(buf[1]))); |
993 | } | |
994 | if (p->family == AF_INET6) { | |
995 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 996 | ifindex_t ifindex; |
997 | struct in6_addr *nexthop; | |
998 | ||
40381db7 | 999 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 1000 | zlog_debug( |
1001 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
1002 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
1003 | sizeof(buf[0])), | |
1004 | p->prefixlen, | |
77e62f2b | 1005 | inet_ntop(AF_INET6, nexthop, |
d62a17ae | 1006 | buf[1], sizeof(buf[1]))); |
1007 | } | |
1008 | } | |
1009 | return 0; | |
73ac8160 DS |
1010 | } |
1011 | ||
b98f7728 PG |
1012 | static struct thread *bgp_tm_thread_connect; |
1013 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1014 | static bool bgp_tm_chunk_obtained; |
1015 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1016 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1017 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
1018 | |
1019 | static int bgp_zebra_tm_connect(struct thread *t) | |
1020 | { | |
1021 | struct zclient *zclient; | |
1022 | int delay = 10, ret = 0; | |
1023 | ||
1024 | zclient = THREAD_ARG(t); | |
1025 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1026 | delay = 60; | |
1027 | else { | |
1028 | bgp_tm_status_connected = false; | |
1029 | ret = tm_table_manager_connect(zclient); | |
1030 | } | |
1031 | if (ret < 0) { | |
b7cd3069 | 1032 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1033 | bgp_tm_status_connected = false; |
1034 | } else { | |
1035 | if (!bgp_tm_status_connected) | |
1036 | zlog_debug("Connecting to table manager. Success"); | |
1037 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1038 | if (!bgp_tm_chunk_obtained) { |
1039 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1040 | &bgp_tm_min, | |
6818e7e5 | 1041 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1042 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1043 | /* parse non installed entries */ |
1044 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1045 | } | |
31c28cd7 | 1046 | } |
b98f7728 PG |
1047 | } |
1048 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1049 | &bgp_tm_thread_connect); | |
1050 | return 0; | |
1051 | } | |
1052 | ||
6818e7e5 PG |
1053 | bool bgp_zebra_tm_chunk_obtained(void) |
1054 | { | |
1055 | return bgp_tm_chunk_obtained; | |
1056 | } | |
1057 | ||
31c28cd7 PG |
1058 | uint32_t bgp_zebra_tm_get_id(void) |
1059 | { | |
1060 | static int table_id; | |
1061 | ||
1062 | if (!bgp_tm_chunk_obtained) | |
1063 | return ++table_id; | |
1064 | return bgp_tm_min++; | |
1065 | } | |
1066 | ||
6818e7e5 | 1067 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1068 | { |
1069 | int delay = 1; | |
1070 | ||
1071 | /* if already set, do nothing | |
1072 | */ | |
1073 | if (bgp_tm_thread_connect != NULL) | |
1074 | return; | |
1075 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1076 | bgp_tm_chunk_obtained = false; |
1077 | bgp_tm_min = bgp_tm_max = 0; | |
1078 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1079 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1080 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1081 | &bgp_tm_thread_connect); | |
1082 | } | |
1083 | ||
1084 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1085 | uint32_t *start, uint32_t *end) | |
1086 | { | |
1087 | int ret; | |
1088 | ||
1089 | if (!bgp_tm_status_connected) | |
1090 | return -1; | |
1091 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1092 | if (ret < 0) { | |
e50f7cfd | 1093 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1094 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1095 | return -1; |
1096 | } | |
1097 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1098 | chunk_size, *start, *end); | |
1099 | return 0; | |
1100 | } | |
1101 | ||
77e62f2b | 1102 | static int update_ipv4nh_for_route_install(int nh_othervrf, |
1103 | struct in_addr *nexthop, | |
1104 | struct attr *attr, | |
1105 | bool is_evpn, | |
1106 | struct zapi_nexthop *api_nh) | |
1107 | { | |
1108 | api_nh->gate.ipv4 = *nexthop; | |
1109 | ||
1110 | /* Need to set fields appropriately for EVPN routes imported into | |
1111 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1112 | * connected routes leaked into a VRF. | |
1113 | */ | |
1114 | if (is_evpn) | |
1115 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1116 | else if (nh_othervrf && | |
1117 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { | |
1118 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1119 | api_nh->ifindex = attr->nh_ifindex; | |
1120 | } else | |
1121 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1122 | ||
1123 | return 1; | |
1124 | } | |
1125 | ||
4b7e6066 DS |
1126 | static int |
1127 | update_ipv6nh_for_route_install(int nh_othervrf, struct in6_addr *nexthop, | |
40381db7 DS |
1128 | ifindex_t ifindex, struct bgp_path_info *pi, |
1129 | struct bgp_path_info *best_pi, bool is_evpn, | |
4b7e6066 | 1130 | struct zapi_nexthop *api_nh) |
77e62f2b | 1131 | { |
1132 | struct attr *attr; | |
1133 | ||
40381db7 | 1134 | attr = pi->attr; |
77e62f2b | 1135 | |
1136 | if (is_evpn) | |
1137 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1138 | else if (nh_othervrf) { | |
1139 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { | |
1140 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1141 | api_nh->ifindex = attr->nh_ifindex; | |
1142 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1143 | if (ifindex == 0) | |
1144 | return 0; | |
1145 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1146 | api_nh->ifindex = ifindex; | |
1147 | } else { | |
1148 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1149 | api_nh->ifindex = 0; | |
1150 | } | |
1151 | } else { | |
1152 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1153 | if (pi == best_pi |
1154 | && attr->mp_nexthop_len | |
1155 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1156 | if (pi->peer->nexthop.ifp) | |
1157 | ifindex = | |
1158 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1159 | if (!ifindex) { |
40381db7 DS |
1160 | if (pi->peer->conf_if) |
1161 | ifindex = pi->peer->ifp->ifindex; | |
1162 | else if (pi->peer->ifname) | |
77e62f2b | 1163 | ifindex = ifname2ifindex( |
40381db7 DS |
1164 | pi->peer->ifname, |
1165 | pi->peer->bgp->vrf_id); | |
1166 | else if (pi->peer->nexthop.ifp) | |
1167 | ifindex = | |
1168 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1169 | } |
1170 | ||
1171 | if (ifindex == 0) | |
1172 | return 0; | |
1173 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1174 | api_nh->ifindex = ifindex; | |
1175 | } else { | |
1176 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1177 | api_nh->ifindex = 0; | |
1178 | } | |
1179 | } | |
1180 | api_nh->gate.ipv6 = *nexthop; | |
1181 | ||
1182 | return 1; | |
1183 | } | |
1184 | ||
d62a17ae | 1185 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
4b7e6066 | 1186 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1187 | safi_t safi) |
718e3744 | 1188 | { |
9913029c RW |
1189 | struct zapi_route api; |
1190 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 1191 | int nh_family; |
a74e593b | 1192 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1193 | int has_valid_label = 0; |
d7c0a89a | 1194 | uint8_t distance; |
d62a17ae | 1195 | struct peer *peer; |
4b7e6066 | 1196 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1197 | uint32_t metric; |
b4cb15c6 | 1198 | struct attr local_attr; |
4b7e6066 DS |
1199 | struct bgp_path_info local_info; |
1200 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1201 | route_tag_t tag; |
1202 | mpls_label_t label; | |
ddb5b488 | 1203 | int nh_othervrf = 0; |
960035b2 | 1204 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1205 | bool is_evpn; |
77e62f2b | 1206 | int nh_updated; |
d62a17ae | 1207 | |
1208 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1209 | * know of this instance. | |
1210 | */ | |
1211 | if (!bgp_install_info_to_zebra(bgp)) | |
1212 | return; | |
1213 | ||
d62a17ae | 1214 | if (bgp->main_zebra_update_hold) |
1215 | return; | |
1216 | ||
960035b2 | 1217 | if (bgp_debug_zebra(p)) |
ba1976db | 1218 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1219 | |
529efa23 PG |
1220 | if (safi == SAFI_FLOWSPEC) |
1221 | return bgp_pbr_update_entry(bgp, &rn->p, | |
1222 | info, afi, safi, true); | |
1223 | ||
ddb5b488 PZ |
1224 | /* |
1225 | * vrf leaking support (will have only one nexthop) | |
1226 | */ | |
1227 | if (info->extra && info->extra->bgp_orig) | |
1228 | nh_othervrf = 1; | |
1229 | ||
9913029c RW |
1230 | /* Make Zebra API structure. */ |
1231 | memset(&api, 0, sizeof(api)); | |
1232 | api.vrf_id = bgp->vrf_id; | |
1233 | api.type = ZEBRA_ROUTE_BGP; | |
1234 | api.safi = safi; | |
1235 | api.prefix = *p; | |
1236 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1237 | ||
d62a17ae | 1238 | peer = info->peer; |
1239 | ||
ddb5b488 PZ |
1240 | if (info->type == ZEBRA_ROUTE_BGP |
1241 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1242 | ||
1ec90b5e | 1243 | /* Obtain peer from parent */ |
1244 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1245 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1246 | ->peer; | |
ddb5b488 PZ |
1247 | } |
1248 | ||
d62a17ae | 1249 | tag = info->attr->tag; |
1250 | ||
88493076 | 1251 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1252 | is_evpn = is_route_parent_evpn(info); |
1253 | if (is_evpn) | |
90264d64 | 1254 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1255 | |
d62a17ae | 1256 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1257 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1258 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1259 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1260 | } |
a39275d7 | 1261 | |
d62a17ae | 1262 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1263 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1264 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1265 | ||
4e8b02f4 | 1266 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1267 | |
2ad4f093 RW |
1268 | /* Metric is currently based on the best-path only */ |
1269 | metric = info->attr->med; | |
18ee8310 | 1270 | for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { |
a74e593b RW |
1271 | if (valid_nh_count >= multipath_num) |
1272 | break; | |
1273 | ||
b4cb15c6 DL |
1274 | *mpinfo_cp = *mpinfo; |
1275 | ||
d0d695f4 RW |
1276 | /* Get nexthop address-family */ |
1277 | if (p->family == AF_INET | |
1278 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1279 | nh_family = AF_INET; | |
1280 | else if (p->family == AF_INET6 | |
1281 | || (p->family == AF_INET | |
1282 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1283 | nh_family = AF_INET6; | |
1284 | else | |
1285 | continue; | |
1286 | ||
1374aec9 | 1287 | api_nh = &api.nexthops[valid_nh_count]; |
a12495e7 DS |
1288 | api_nh->vrf_id = nh_othervrf ? info->extra->bgp_orig->vrf_id |
1289 | : bgp->vrf_id; | |
2ad4f093 | 1290 | if (nh_family == AF_INET) { |
ddb5b488 | 1291 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1292 | if (mpinfo->extra) { |
1293 | zlog_debug( | |
1294 | "%s: p=%s, bgp_is_valid_label: %d", | |
1295 | __func__, buf_prefix, | |
1296 | bgp_is_valid_label( | |
1297 | &mpinfo->extra | |
1298 | ->label[0])); | |
1299 | } else { | |
1300 | zlog_debug( | |
1301 | "%s: p=%s, extra is NULL, no label", | |
1302 | __func__, buf_prefix); | |
1303 | } | |
1304 | } | |
1305 | ||
6c0a6053 | 1306 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1307 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1308 | apply doesn't modify the BGP route info. */ |
1309 | local_attr = *mpinfo->attr; | |
1310 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1311 | } |
b4cb15c6 | 1312 | |
ddb5b488 | 1313 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1314 | if (!bgp_table_map_apply( |
d62a17ae | 1315 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1316 | mpinfo_cp)) |
1317 | continue; | |
1318 | ||
1319 | /* metric/tag is only allowed to be | |
1320 | * overridden on 1st nexthop */ | |
1321 | if (mpinfo == info) { | |
1322 | metric = mpinfo_cp->attr->med; | |
1323 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1324 | } |
b4cb15c6 | 1325 | } |
d62a17ae | 1326 | |
77e62f2b | 1327 | nh_updated = update_ipv4nh_for_route_install( |
1328 | nh_othervrf, | |
1329 | &mpinfo_cp->attr->nexthop, | |
1330 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1331 | } else { |
f220da99 | 1332 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1333 | struct in6_addr *nexthop; |
9913029c | 1334 | |
6c0a6053 | 1335 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1336 | /* Copy info and attributes, so the route-map |
1337 | apply doesn't modify the BGP route info. */ | |
1338 | local_attr = *mpinfo->attr; | |
1339 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1340 | } |
1341 | ||
d62a17ae | 1342 | if (bgp->table_map[afi][safi].name) { |
1343 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1344 | apply doesn't modify the BGP route info. */ |
1345 | local_attr = *mpinfo->attr; | |
1346 | mpinfo_cp->attr = &local_attr; | |
1347 | ||
1348 | if (!bgp_table_map_apply( | |
d62a17ae | 1349 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1350 | mpinfo_cp)) |
1351 | continue; | |
1352 | ||
1353 | /* metric/tag is only allowed to be | |
1354 | * overridden on 1st nexthop */ | |
1355 | if (mpinfo == info) { | |
1356 | metric = mpinfo_cp->attr->med; | |
1357 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1358 | } |
b4cb15c6 | 1359 | } |
18ee8310 DS |
1360 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1361 | &ifindex); | |
77e62f2b | 1362 | nh_updated = update_ipv6nh_for_route_install( |
1363 | nh_othervrf, nexthop, ifindex, | |
1364 | mpinfo, info, is_evpn, api_nh); | |
2ad4f093 | 1365 | } |
d62a17ae | 1366 | |
77e62f2b | 1367 | /* Did we get proper nexthop info to update zebra? */ |
1368 | if (!nh_updated) | |
1369 | continue; | |
1370 | ||
a4d82a8a PZ |
1371 | if (mpinfo->extra |
1372 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1373 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1374 | has_valid_label = 1; |
b57ba6d2 | 1375 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1376 | |
2ad4f093 RW |
1377 | api_nh->label_num = 1; |
1378 | api_nh->labels[0] = label; | |
d62a17ae | 1379 | } |
22e63104 | 1380 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1381 | sizeof(struct ethaddr)); | |
2ad4f093 RW |
1382 | valid_nh_count++; |
1383 | } | |
d62a17ae | 1384 | |
77e62f2b | 1385 | |
a89b49cc | 1386 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1387 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1388 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1389 | |
5cc347c4 DS |
1390 | /* |
1391 | * When we create an aggregate route we must also | |
1392 | * install a Null0 route in the RIB, so overwrite | |
1393 | * what was written into api with a blackhole route | |
1394 | */ | |
1395 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1396 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1397 | else | |
2ad4f093 | 1398 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1399 | |
2ad4f093 RW |
1400 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1401 | api.metric = metric; | |
d62a17ae | 1402 | |
2ad4f093 RW |
1403 | if (tag) { |
1404 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1405 | api.tag = tag; | |
1406 | } | |
d62a17ae | 1407 | |
2ad4f093 RW |
1408 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1409 | if (distance) { | |
1410 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1411 | api.distance = distance; | |
1412 | } | |
d62a17ae | 1413 | |
2ad4f093 RW |
1414 | if (bgp_debug_zebra(p)) { |
1415 | char prefix_buf[PREFIX_STRLEN]; | |
1416 | char nh_buf[INET6_ADDRSTRLEN]; | |
1417 | char label_buf[20]; | |
1418 | int i; | |
1419 | ||
1420 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1421 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1422 | " count %d", | |
1423 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1424 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1425 | for (i = 0; i < api.nexthop_num; i++) { | |
1426 | api_nh = &api.nexthops[i]; | |
1427 | ||
77e62f2b | 1428 | if (api_nh->type == NEXTHOP_TYPE_IFINDEX) |
1429 | nh_buf[0] = '\0'; | |
1430 | else { | |
1431 | if (api_nh->type == NEXTHOP_TYPE_IPV4) | |
1432 | nh_family = AF_INET; | |
1433 | else | |
1434 | nh_family = AF_INET6; | |
1435 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1436 | sizeof(nh_buf)); | |
1437 | } | |
2ad4f093 RW |
1438 | |
1439 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1440 | if (has_valid_label |
1441 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1442 | sprintf(label_buf, "label %u", |
1443 | api_nh->labels[0]); | |
77e62f2b | 1444 | zlog_debug(" nhop [%d]: %s if %u VRF %u %s", |
1445 | i + 1, nh_buf, api_nh->ifindex, | |
1446 | api_nh->vrf_id, label_buf); | |
d62a17ae | 1447 | } |
1448 | } | |
2ad4f093 | 1449 | |
960035b2 PZ |
1450 | if (bgp_debug_zebra(p)) { |
1451 | int recursion_flag = 0; | |
1452 | ||
1453 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1454 | recursion_flag = 1; | |
1455 | ||
1456 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1457 | __func__, buf_prefix, | |
1458 | (recursion_flag ? "" : "NOT ")); | |
1459 | } | |
2ad4f093 RW |
1460 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1461 | : ZEBRA_ROUTE_DELETE, | |
1462 | zclient, &api); | |
718e3744 | 1463 | } |
1464 | ||
73ac8160 | 1465 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1466 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1467 | { |
d62a17ae | 1468 | struct bgp_node *rn; |
1469 | struct bgp_table *table; | |
40381db7 | 1470 | struct bgp_path_info *pi; |
d62a17ae | 1471 | |
1472 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1473 | * know of this instance. | |
1474 | */ | |
1475 | if (!bgp_install_info_to_zebra(bgp)) | |
1476 | return; | |
1477 | ||
1478 | table = bgp->rib[afi][safi]; | |
1479 | if (!table) | |
1480 | return; | |
1481 | ||
1482 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
40381db7 DS |
1483 | for (pi = rn->info; pi; pi = pi->next) |
1484 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && | |
ddb5b488 | 1485 | |
40381db7 DS |
1486 | (pi->type == ZEBRA_ROUTE_BGP |
1487 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1488 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1489 | |
40381db7 | 1490 | bgp_zebra_announce(rn, &rn->p, pi, bgp, afi, |
d62a17ae | 1491 | safi); |
73ac8160 DS |
1492 | } |
1493 | ||
4b7e6066 | 1494 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1495 | struct bgp *bgp, safi_t safi) |
718e3744 | 1496 | { |
2ad4f093 | 1497 | struct zapi_route api; |
f7df1907 | 1498 | struct peer *peer; |
ddb5b488 | 1499 | |
d62a17ae | 1500 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1501 | * know of this instance. | |
1502 | */ | |
568e10ca | 1503 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1504 | return; |
1505 | ||
f7df1907 PG |
1506 | if (safi == SAFI_FLOWSPEC) { |
1507 | peer = info->peer; | |
529efa23 PG |
1508 | return bgp_pbr_update_entry(peer->bgp, p, |
1509 | info, AFI_IP, safi, false); | |
f7df1907 | 1510 | } |
529efa23 | 1511 | |
2ad4f093 | 1512 | memset(&api, 0, sizeof(api)); |
568e10ca | 1513 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1514 | api.type = ZEBRA_ROUTE_BGP; |
1515 | api.safi = safi; | |
1516 | api.prefix = *p; | |
d62a17ae | 1517 | |
88493076 | 1518 | /* If the route's source is EVPN, flag as such. */ |
1519 | if (is_route_parent_evpn(info)) | |
90264d64 | 1520 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1521 | |
2ad4f093 RW |
1522 | if (bgp_debug_zebra(p)) { |
1523 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1524 | |
2ad4f093 | 1525 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1526 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1527 | } |
d62a17ae | 1528 | |
2ad4f093 | 1529 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1530 | } |
56c1f7d8 | 1531 | |
d7c0a89a QY |
1532 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1533 | unsigned short instance) | |
7c8ff89e | 1534 | { |
d62a17ae | 1535 | struct list *red_list; |
1536 | struct listnode *node; | |
1537 | struct bgp_redist *red; | |
7c8ff89e | 1538 | |
d62a17ae | 1539 | red_list = bgp->redist[afi][type]; |
1540 | if (!red_list) | |
1541 | return (NULL); | |
7c8ff89e | 1542 | |
d62a17ae | 1543 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1544 | if (red->instance == instance) | |
1545 | return red; | |
7c8ff89e | 1546 | |
d62a17ae | 1547 | return NULL; |
7c8ff89e DS |
1548 | } |
1549 | ||
d7c0a89a QY |
1550 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1551 | unsigned short instance) | |
7c8ff89e | 1552 | { |
d62a17ae | 1553 | struct list *red_list; |
1554 | struct bgp_redist *red; | |
7c8ff89e | 1555 | |
d62a17ae | 1556 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1557 | if (red) | |
1558 | return red; | |
7c8ff89e | 1559 | |
d62a17ae | 1560 | if (!bgp->redist[afi][type]) |
1561 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1562 | |
d62a17ae | 1563 | red_list = bgp->redist[afi][type]; |
1564 | red = (struct bgp_redist *)XCALLOC(MTYPE_BGP_REDIST, | |
1565 | sizeof(struct bgp_redist)); | |
1566 | red->instance = instance; | |
7c8ff89e | 1567 | |
d62a17ae | 1568 | listnode_add(red_list, red); |
7c8ff89e | 1569 | |
d62a17ae | 1570 | return red; |
7c8ff89e DS |
1571 | } |
1572 | ||
d7c0a89a QY |
1573 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1574 | unsigned short instance) | |
7c8ff89e | 1575 | { |
d62a17ae | 1576 | struct bgp_redist *red; |
1577 | ||
1578 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1579 | ||
1580 | if (red) { | |
1581 | listnode_delete(bgp->redist[afi][type], red); | |
1582 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1583 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1584 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1585 | } |
7c8ff89e | 1586 | } |
6b0655a2 | 1587 | |
718e3744 | 1588 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1589 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1590 | unsigned short instance, bool changed) |
718e3744 | 1591 | { |
e923dd62 | 1592 | /* If redistribute options are changed call |
1593 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1594 | * the routes | |
1595 | */ | |
1596 | if (changed) | |
1597 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1598 | |
d62a17ae | 1599 | /* Return if already redistribute flag is set. */ |
1600 | if (instance) { | |
1601 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1602 | instance)) | |
1603 | return CMD_WARNING; | |
718e3744 | 1604 | |
d62a17ae | 1605 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1606 | } else { | |
1607 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1608 | return CMD_WARNING; | |
7076bb2f | 1609 | |
65efcfce | 1610 | #if ENABLE_BGP_VNC |
d62a17ae | 1611 | if (bgp->vrf_id == VRF_DEFAULT |
1612 | && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1613 | vnc_export_bgp_enable( | |
1614 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1615 | } | |
65efcfce LB |
1616 | #endif |
1617 | ||
d62a17ae | 1618 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1619 | } | |
718e3744 | 1620 | |
ea12cf11 DS |
1621 | /* |
1622 | * Don't try to register if we're not connected to Zebra or Zebra | |
1623 | * doesn't know of this instance. | |
1624 | * | |
1625 | * When we come up later well resend if needed. | |
d62a17ae | 1626 | */ |
1627 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1628 | return CMD_SUCCESS; |
a39275d7 | 1629 | |
d62a17ae | 1630 | if (BGP_DEBUG(zebra, ZEBRA)) |
1631 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1632 | bgp->vrf_id, afi, zebra_route_string(type), | |
1633 | instance); | |
518f0eb1 | 1634 | |
d62a17ae | 1635 | /* Send distribute add message to zebra. */ |
1636 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1637 | instance, bgp->vrf_id); | |
718e3744 | 1638 | |
d62a17ae | 1639 | return CMD_SUCCESS; |
718e3744 | 1640 | } |
1641 | ||
d62a17ae | 1642 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1643 | unsigned short instance) |
518f0eb1 | 1644 | { |
d62a17ae | 1645 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1646 | * know of this instance. | |
1647 | */ | |
1648 | if (!bgp_install_info_to_zebra(bgp)) | |
1649 | return -1; | |
1650 | ||
1651 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1652 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1653 | bgp->vrf_id, afi, zebra_route_string(type), | |
1654 | instance); | |
1655 | ||
1656 | /* Send distribute add message to zebra. */ | |
1657 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1658 | instance, bgp->vrf_id); | |
1659 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1660 | instance, bgp->vrf_id); | |
1661 | ||
1662 | return 0; | |
518f0eb1 DS |
1663 | } |
1664 | ||
718e3744 | 1665 | /* Redistribute with route-map specification. */ |
1de27621 DA |
1666 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1667 | struct route_map *route_map) | |
718e3744 | 1668 | { |
d62a17ae | 1669 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1670 | return 0; | |
718e3744 | 1671 | |
d62a17ae | 1672 | if (red->rmap.name) |
1673 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1674 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
1de27621 | 1675 | red->rmap.map = route_map; |
718e3744 | 1676 | |
d62a17ae | 1677 | return 1; |
718e3744 | 1678 | } |
1679 | ||
1680 | /* Redistribute with metric specification. */ | |
d62a17ae | 1681 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
d7c0a89a | 1682 | afi_t afi, int type, uint32_t metric) |
718e3744 | 1683 | { |
d62a17ae | 1684 | struct bgp_node *rn; |
40381db7 | 1685 | struct bgp_path_info *pi; |
d62a17ae | 1686 | |
1687 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1688 | return 0; | |
1689 | ||
1690 | red->redist_metric_flag = 1; | |
1691 | red->redist_metric = metric; | |
1692 | ||
1693 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1694 | rn = bgp_route_next(rn)) { | |
40381db7 DS |
1695 | for (pi = rn->info; pi; pi = pi->next) { |
1696 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE | |
1697 | && pi->type == type | |
1698 | && pi->instance == red->instance) { | |
d62a17ae | 1699 | struct attr *old_attr; |
1700 | struct attr new_attr; | |
1701 | ||
40381db7 | 1702 | bgp_attr_dup(&new_attr, pi->attr); |
d62a17ae | 1703 | new_attr.med = red->redist_metric; |
40381db7 DS |
1704 | old_attr = pi->attr; |
1705 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1706 | bgp_attr_unintern(&old_attr); |
1707 | ||
40381db7 | 1708 | bgp_path_info_set_flag(rn, pi, |
18ee8310 | 1709 | BGP_PATH_ATTR_CHANGED); |
d62a17ae | 1710 | bgp_process(bgp, rn, afi, SAFI_UNICAST); |
1711 | } | |
1712 | } | |
1713 | } | |
1714 | ||
1715 | return 1; | |
718e3744 | 1716 | } |
1717 | ||
1718 | /* Unset redistribution. */ | |
d62a17ae | 1719 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1720 | unsigned short instance) |
718e3744 | 1721 | { |
d62a17ae | 1722 | struct bgp_redist *red; |
1723 | ||
1724 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1725 | if (!red) | |
1726 | return CMD_SUCCESS; | |
1727 | ||
1728 | /* Return if zebra connection is disabled. */ | |
1729 | if (instance) { | |
1730 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1731 | instance)) | |
1732 | return CMD_WARNING; | |
1733 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1734 | } else { | |
1735 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1736 | return CMD_WARNING; | |
1737 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1738 | } | |
718e3744 | 1739 | |
65efcfce | 1740 | |
d62a17ae | 1741 | if (bgp_install_info_to_zebra(bgp)) { |
1742 | /* Send distribute delete message to zebra. */ | |
1743 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1744 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1745 | bgp->vrf_id, afi, zebra_route_string(type), | |
1746 | instance); | |
1747 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1748 | type, instance, bgp->vrf_id); | |
1749 | } | |
1750 | ||
1751 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1752 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1753 | ||
1754 | return CMD_SUCCESS; | |
718e3744 | 1755 | } |
1756 | ||
6aeb9e78 | 1757 | /* Unset redistribution. */ |
d62a17ae | 1758 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1759 | unsigned short instance) |
6aeb9e78 | 1760 | { |
d62a17ae | 1761 | struct bgp_redist *red; |
6aeb9e78 | 1762 | |
ddb5b488 PZ |
1763 | /* |
1764 | * vnc and vpn->vrf checks must be before red check because | |
1765 | * they operate within bgpd irrespective of zebra connection | |
1766 | * status. red lookup fails if there is no zebra connection. | |
1767 | */ | |
1768 | #if ENABLE_BGP_VNC | |
1769 | if (bgp->vrf_id == VRF_DEFAULT && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1770 | vnc_export_bgp_disable(bgp, afi); | |
1771 | } | |
1772 | #endif | |
ddb5b488 | 1773 | |
d62a17ae | 1774 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1775 | if (!red) | |
1776 | return CMD_SUCCESS; | |
6aeb9e78 | 1777 | |
d62a17ae | 1778 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1779 | |
d62a17ae | 1780 | /* Unset route-map. */ |
1781 | if (red->rmap.name) | |
1782 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1783 | red->rmap.name = NULL; | |
1784 | red->rmap.map = NULL; | |
6aeb9e78 | 1785 | |
d62a17ae | 1786 | /* Unset metric. */ |
1787 | red->redist_metric_flag = 0; | |
1788 | red->redist_metric = 0; | |
6aeb9e78 | 1789 | |
d62a17ae | 1790 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1791 | |
d62a17ae | 1792 | return CMD_SUCCESS; |
6aeb9e78 DS |
1793 | } |
1794 | ||
eb117f29 SK |
1795 | /* Update redistribute vrf bitmap during triggers like |
1796 | restart networking or delete/add VRFs */ | |
d62a17ae | 1797 | void bgp_update_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) |
eb117f29 | 1798 | { |
d62a17ae | 1799 | int i; |
1800 | afi_t afi; | |
1801 | ||
1802 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1803 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
48c74f88 DS |
1804 | if ((old_vrf_id == VRF_UNKNOWN) |
1805 | || vrf_bitmap_check(zclient->redist[afi][i], | |
1806 | old_vrf_id)) { | |
d62a17ae | 1807 | vrf_bitmap_unset(zclient->redist[afi][i], |
1808 | old_vrf_id); | |
1809 | vrf_bitmap_set(zclient->redist[afi][i], | |
1810 | bgp->vrf_id); | |
1811 | } | |
1812 | return; | |
eb117f29 SK |
1813 | } |
1814 | ||
d62a17ae | 1815 | void bgp_zclient_reset(void) |
718e3744 | 1816 | { |
d62a17ae | 1817 | zclient_reset(zclient); |
718e3744 | 1818 | } |
1819 | ||
ad4cbda1 | 1820 | /* Register this instance with Zebra. Invoked upon connect (for |
1821 | * default instance) and when other VRFs are learnt (or created and | |
1822 | * already learnt). | |
1823 | */ | |
d62a17ae | 1824 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1825 | { |
d62a17ae | 1826 | /* Don't try to register if we're not connected to Zebra */ |
1827 | if (!zclient || zclient->sock < 0) | |
1828 | return; | |
ad4cbda1 | 1829 | |
d62a17ae | 1830 | if (BGP_DEBUG(zebra, ZEBRA)) |
1831 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1832 | |
d62a17ae | 1833 | /* Register for router-id, interfaces, redistributed routes. */ |
1834 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1835 | |
d62a17ae | 1836 | /* For default instance, register to learn about VNIs, if appropriate. |
1837 | */ | |
a4d82a8a | 1838 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1839 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1840 | |
1841 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1842 | } |
1843 | ||
1844 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1845 | * being deleted (default or VRF) and it is already registered. | |
1846 | */ | |
d62a17ae | 1847 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1848 | { |
d62a17ae | 1849 | /* Don't try to deregister if we're not connected to Zebra */ |
1850 | if (zclient->sock < 0) | |
1851 | return; | |
ad4cbda1 | 1852 | |
d62a17ae | 1853 | if (BGP_DEBUG(zebra, ZEBRA)) |
1854 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1855 | |
d62a17ae | 1856 | /* For default instance, unregister learning about VNIs, if appropriate. |
1857 | */ | |
a4d82a8a | 1858 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1859 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1860 | |
d62a17ae | 1861 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1862 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1863 | } |
1864 | ||
d62a17ae | 1865 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1866 | { |
d62a17ae | 1867 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1868 | |
d62a17ae | 1869 | /* Don't try to initiate if we're not connected to Zebra */ |
1870 | if (zclient->sock < 0) | |
1871 | return; | |
4a04e5f7 | 1872 | |
d62a17ae | 1873 | if (BGP_DEBUG(zebra, ZEBRA)) |
1874 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1875 | peer->host); | |
4a04e5f7 | 1876 | |
d62a17ae | 1877 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1878 | ra_interval); | |
4a04e5f7 | 1879 | } |
1880 | ||
d62a17ae | 1881 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1882 | { |
d62a17ae | 1883 | /* Don't try to terminate if we're not connected to Zebra */ |
1884 | if (zclient->sock < 0) | |
1885 | return; | |
4a04e5f7 | 1886 | |
d62a17ae | 1887 | if (BGP_DEBUG(zebra, ZEBRA)) |
1888 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1889 | peer->host); | |
4a04e5f7 | 1890 | |
d62a17ae | 1891 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1892 | } |
1893 | ||
31310b25 MK |
1894 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1895 | { | |
1896 | struct stream *s = NULL; | |
1897 | ||
1898 | /* Check socket. */ | |
1899 | if (!zclient || zclient->sock < 0) | |
1900 | return 0; | |
1901 | ||
1902 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1903 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1904 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1905 | zlog_debug("%s: No zebra instance to talk to, cannot advertise subnet", | |
1906 | __PRETTY_FUNCTION__); | |
31310b25 | 1907 | return 0; |
bb4ef1ae | 1908 | } |
31310b25 MK |
1909 | |
1910 | s = zclient->obuf; | |
1911 | stream_reset(s); | |
1912 | ||
1913 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1914 | stream_putc(s, advertise); | |
1915 | stream_put3(s, vni); | |
1916 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1917 | ||
1918 | return zclient_send_message(zclient); | |
1919 | } | |
1920 | ||
1a98c087 MK |
1921 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1922 | { | |
1923 | struct stream *s = NULL; | |
1924 | ||
1925 | /* Check socket. */ | |
1926 | if (!zclient || zclient->sock < 0) | |
1927 | return 0; | |
1928 | ||
1929 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1930 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1931 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1932 | zlog_debug("%s: No zebra instance to talk to, not installing gw_macip", | |
1933 | __PRETTY_FUNCTION__); | |
1a98c087 | 1934 | return 0; |
bb4ef1ae | 1935 | } |
1a98c087 MK |
1936 | |
1937 | s = zclient->obuf; | |
1938 | stream_reset(s); | |
1939 | ||
1940 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
1941 | stream_putc(s, advertise); | |
cc6d5476 | 1942 | stream_putl(s, vni); |
1a98c087 MK |
1943 | stream_putw_at(s, 0, stream_get_endp(s)); |
1944 | ||
1945 | return zclient_send_message(zclient); | |
1946 | } | |
1947 | ||
fd069644 DS |
1948 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
1949 | enum vxlan_flood_control flood_ctrl) | |
1950 | { | |
1951 | struct stream *s; | |
1952 | ||
1953 | /* Check socket. */ | |
1954 | if (!zclient || zclient->sock < 0) | |
1955 | return 0; | |
1956 | ||
1957 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1958 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1959 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1960 | zlog_debug("%s: No zebra instance to talk to, not installing all vni", | |
1961 | __PRETTY_FUNCTION__); | |
fd069644 | 1962 | return 0; |
bb4ef1ae | 1963 | } |
fd069644 DS |
1964 | |
1965 | s = zclient->obuf; | |
1966 | stream_reset(s); | |
1967 | ||
1968 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
1969 | stream_putc(s, flood_ctrl); | |
1970 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1971 | ||
1972 | return zclient_send_message(zclient); | |
1973 | } | |
1974 | ||
d62a17ae | 1975 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 1976 | { |
d62a17ae | 1977 | struct stream *s; |
7724c0a1 | 1978 | |
d62a17ae | 1979 | /* Check socket. */ |
1980 | if (!zclient || zclient->sock < 0) | |
1981 | return 0; | |
7724c0a1 | 1982 | |
d62a17ae | 1983 | /* Don't try to register if Zebra doesn't know of this instance. */ |
1984 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1985 | return 0; | |
7724c0a1 | 1986 | |
d62a17ae | 1987 | s = zclient->obuf; |
1988 | stream_reset(s); | |
7724c0a1 | 1989 | |
d62a17ae | 1990 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
1991 | stream_putc(s, advertise); | |
fbac9605 DS |
1992 | /* Also inform current BUM handling setting. This is really |
1993 | * relevant only when 'advertise' is set. | |
1994 | */ | |
fd069644 | 1995 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 1996 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 1997 | |
d62a17ae | 1998 | return zclient_send_message(zclient); |
7724c0a1 | 1999 | } |
2000 | ||
30d50e6d PG |
2001 | static int rule_notify_owner(int command, struct zclient *zclient, |
2002 | zebra_size_t length, vrf_id_t vrf_id) | |
2003 | { | |
2004 | uint32_t seqno, priority, unique; | |
2005 | enum zapi_rule_notify_owner note; | |
2006 | struct bgp_pbr_action *bgp_pbra; | |
2007 | ifindex_t ifi; | |
2008 | ||
2009 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
2010 | &ifi, ¬e)) | |
2011 | return -1; | |
2012 | ||
70eabd12 | 2013 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d PG |
2014 | if (!bgp_pbra) { |
2015 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2016 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
2017 | __PRETTY_FUNCTION__, unique); | |
2018 | return 0; | |
2019 | } | |
2020 | ||
2021 | switch (note) { | |
2022 | case ZAPI_RULE_FAIL_INSTALL: | |
2023 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2024 | zlog_debug("%s: Received RULE_FAIL_INSTALL", | |
2025 | __PRETTY_FUNCTION__); | |
2026 | bgp_pbra->installed = false; | |
2027 | bgp_pbra->install_in_progress = false; | |
2028 | break; | |
2029 | case ZAPI_RULE_INSTALLED: | |
2030 | bgp_pbra->installed = true; | |
2031 | bgp_pbra->install_in_progress = false; | |
2032 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2033 | zlog_debug("%s: Received RULE_INSTALLED", | |
2034 | __PRETTY_FUNCTION__); | |
2035 | break; | |
f18a08f5 | 2036 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2037 | case ZAPI_RULE_REMOVED: |
2038 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2039 | zlog_debug("%s: Received RULE REMOVED", | |
2040 | __PRETTY_FUNCTION__); | |
2041 | break; | |
2042 | } | |
2043 | ||
2044 | return 0; | |
2045 | } | |
2046 | ||
2047 | static int ipset_notify_owner(int command, struct zclient *zclient, | |
2048 | zebra_size_t length, vrf_id_t vrf_id) | |
2049 | { | |
2050 | uint32_t unique; | |
2051 | enum zapi_ipset_notify_owner note; | |
2052 | struct bgp_pbr_match *bgp_pbim; | |
2053 | ||
2054 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2055 | &unique, | |
2056 | ¬e)) | |
2057 | return -1; | |
2058 | ||
2059 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2060 | if (!bgp_pbim) { | |
2061 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2062 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
82e194ed | 2063 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2064 | return 0; |
2065 | } | |
2066 | ||
2067 | switch (note) { | |
2068 | case ZAPI_IPSET_FAIL_INSTALL: | |
2069 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2070 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", | |
2071 | __PRETTY_FUNCTION__); | |
2072 | bgp_pbim->installed = false; | |
2073 | bgp_pbim->install_in_progress = false; | |
2074 | break; | |
2075 | case ZAPI_IPSET_INSTALLED: | |
2076 | bgp_pbim->installed = true; | |
2077 | bgp_pbim->install_in_progress = false; | |
2078 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2079 | zlog_debug("%s: Received IPSET_INSTALLED", | |
2080 | __PRETTY_FUNCTION__); | |
2081 | break; | |
f18a08f5 | 2082 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2083 | case ZAPI_IPSET_REMOVED: |
2084 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2085 | zlog_debug("%s: Received IPSET REMOVED", | |
2086 | __PRETTY_FUNCTION__); | |
2087 | break; | |
2088 | } | |
2089 | ||
2090 | return 0; | |
2091 | } | |
2092 | ||
2093 | static int ipset_entry_notify_owner(int command, struct zclient *zclient, | |
2094 | zebra_size_t length, vrf_id_t vrf_id) | |
2095 | { | |
2096 | uint32_t unique; | |
2097 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2098 | enum zapi_ipset_entry_notify_owner note; | |
2099 | struct bgp_pbr_match_entry *bgp_pbime; | |
2100 | ||
2101 | if (!zapi_ipset_entry_notify_decode( | |
2102 | zclient->ibuf, | |
2103 | &unique, | |
2104 | ipset_name, | |
2105 | ¬e)) | |
2106 | return -1; | |
2107 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2108 | ipset_name, | |
2109 | unique); | |
2110 | if (!bgp_pbime) { | |
2111 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2112 | zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)", |
82e194ed | 2113 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2114 | return 0; |
2115 | } | |
2116 | ||
2117 | switch (note) { | |
2118 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2119 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2120 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
2121 | __PRETTY_FUNCTION__); | |
2122 | bgp_pbime->installed = false; | |
2123 | bgp_pbime->install_in_progress = false; | |
2124 | break; | |
2125 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2126 | { |
9b6d8fcf | 2127 | struct bgp_path_info *path; |
4b7e6066 DS |
2128 | struct bgp_path_info_extra *extra; |
2129 | ||
2130 | bgp_pbime->installed = true; | |
2131 | bgp_pbime->install_in_progress = false; | |
2132 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2133 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
2134 | __PRETTY_FUNCTION__); | |
9b6d8fcf DS |
2135 | /* link bgp_path_info to bpme */ |
2136 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2137 | extra = bgp_path_info_extra_get(path); | |
4b7e6066 DS |
2138 | if (extra->bgp_fs_pbr == NULL) |
2139 | extra->bgp_fs_pbr = list_new(); | |
2140 | listnode_add(extra->bgp_fs_pbr, bgp_pbime); | |
b588b642 | 2141 | } |
30d50e6d | 2142 | break; |
f18a08f5 | 2143 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2144 | case ZAPI_IPSET_ENTRY_REMOVED: |
2145 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2146 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
2147 | __PRETTY_FUNCTION__); | |
2148 | break; | |
2149 | } | |
2150 | return 0; | |
2151 | } | |
2152 | ||
c16a0a62 PG |
2153 | static int iptable_notify_owner(int command, struct zclient *zclient, |
2154 | zebra_size_t length, vrf_id_t vrf_id) | |
2155 | { | |
2156 | uint32_t unique; | |
2157 | enum zapi_iptable_notify_owner note; | |
2158 | struct bgp_pbr_match *bgpm; | |
2159 | ||
2160 | if (!zapi_iptable_notify_decode( | |
2161 | zclient->ibuf, | |
2162 | &unique, | |
2163 | ¬e)) | |
2164 | return -1; | |
2165 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2166 | if (!bgpm) { | |
2167 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed PG |
2168 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
2169 | __PRETTY_FUNCTION__, note, unique); | |
c16a0a62 PG |
2170 | return 0; |
2171 | } | |
2172 | switch (note) { | |
2173 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2174 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2175 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
2176 | __PRETTY_FUNCTION__); | |
2177 | bgpm->installed_in_iptable = false; | |
2178 | bgpm->install_iptable_in_progress = false; | |
2179 | break; | |
2180 | case ZAPI_IPTABLE_INSTALLED: | |
2181 | bgpm->installed_in_iptable = true; | |
2182 | bgpm->install_iptable_in_progress = false; | |
2183 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2184 | zlog_debug("%s: Received IPTABLE_INSTALLED", | |
2185 | __PRETTY_FUNCTION__); | |
a6b07429 | 2186 | bgpm->action->refcnt++; |
c16a0a62 | 2187 | break; |
f18a08f5 | 2188 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2189 | case ZAPI_IPTABLE_REMOVED: |
2190 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2191 | zlog_debug("%s: Received IPTABLE REMOVED", | |
2192 | __PRETTY_FUNCTION__); | |
2193 | break; | |
2194 | } | |
2195 | return 0; | |
2196 | } | |
2197 | ||
30d50e6d PG |
2198 | static void bgp_encode_pbr_rule_action(struct stream *s, |
2199 | struct bgp_pbr_action *pbra) | |
2200 | { | |
2201 | struct prefix any; | |
2202 | ||
2203 | stream_putl(s, 0); /* seqno unused */ | |
2204 | stream_putl(s, 0); /* ruleno unused */ | |
2205 | ||
2206 | stream_putl(s, pbra->unique); | |
2207 | ||
2208 | memset(&any, 0, sizeof(any)); | |
2209 | any.family = AF_INET; | |
2210 | stream_putc(s, any.family); | |
2211 | stream_putc(s, any.prefixlen); | |
2212 | stream_put(s, &any.u.prefix, prefix_blen(&any)); | |
2213 | ||
2214 | stream_putw(s, 0); /* src port */ | |
2215 | ||
2216 | stream_putc(s, any.family); | |
2217 | stream_putc(s, any.prefixlen); | |
2218 | stream_put(s, &any.u.prefix, prefix_blen(&any)); | |
2219 | ||
2220 | stream_putw(s, 0); /* dst port */ | |
2221 | ||
2222 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
2223 | ||
2224 | stream_putl(s, pbra->table_id); | |
2225 | ||
2226 | stream_putl(s, 0); /* ifindex unused */ | |
2227 | } | |
2228 | ||
2229 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2230 | struct bgp_pbr_match *pbim) | |
2231 | { | |
2232 | stream_putl(s, pbim->unique); | |
2233 | stream_putl(s, pbim->type); | |
2234 | ||
2235 | stream_put(s, pbim->ipset_name, | |
2236 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2237 | } |
2238 | ||
2239 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2240 | struct bgp_pbr_match_entry *pbime) | |
2241 | { | |
2242 | stream_putl(s, pbime->unique); | |
2243 | /* check that back pointer is not null */ | |
2244 | stream_put(s, pbime->backpointer->ipset_name, | |
2245 | ZEBRA_IPSET_NAME_SIZE); | |
2246 | ||
2247 | stream_putc(s, pbime->src.family); | |
2248 | stream_putc(s, pbime->src.prefixlen); | |
2249 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2250 | ||
2251 | stream_putc(s, pbime->dst.family); | |
2252 | stream_putc(s, pbime->dst.prefixlen); | |
2253 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2254 | |
2255 | stream_putw(s, pbime->src_port_min); | |
2256 | stream_putw(s, pbime->src_port_max); | |
2257 | stream_putw(s, pbime->dst_port_min); | |
2258 | stream_putw(s, pbime->dst_port_max); | |
2259 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2260 | } |
2261 | ||
c16a0a62 PG |
2262 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2263 | struct bgp_pbr_action *bpa, | |
2264 | struct bgp_pbr_match *pbm) | |
2265 | { | |
2266 | stream_putl(s, pbm->unique2); | |
2267 | ||
2268 | stream_putl(s, pbm->type); | |
2269 | ||
2270 | stream_putl(s, pbm->flags); | |
2271 | ||
2272 | /* TODO: correlate with what is contained | |
2273 | * into bgp_pbr_action. | |
2274 | * currently only forward supported | |
2275 | */ | |
2276 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2277 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2278 | else | |
2279 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2280 | stream_putl(s, bpa->fwmark); | |
2281 | stream_put(s, pbm->ipset_name, | |
2282 | ZEBRA_IPSET_NAME_SIZE); | |
83360720 PG |
2283 | stream_putw(s, pbm->pkt_len_min); |
2284 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2285 | stream_putw(s, pbm->tcp_flags); |
2286 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2287 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2288 | stream_putc(s, pbm->fragment); |
c16a0a62 PG |
2289 | } |
2290 | ||
ad4cbda1 | 2291 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2292 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2293 | { |
d62a17ae | 2294 | struct bgp *bgp; |
7076bb2f | 2295 | |
d62a17ae | 2296 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2297 | |
d62a17ae | 2298 | /* At this point, we may or may not have BGP instances configured, but |
2299 | * we're only interested in the default VRF (others wouldn't have learnt | |
2300 | * the VRF from Zebra yet.) | |
2301 | */ | |
2302 | bgp = bgp_get_default(); | |
2303 | if (!bgp) | |
2304 | return; | |
ad4cbda1 | 2305 | |
d62a17ae | 2306 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2307 | |
d62a17ae | 2308 | /* Send the client registration */ |
2309 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER); | |
2376c3f2 | 2310 | |
955bfd98 | 2311 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2312 | bgp_lp_event_zebra_up(); |
955bfd98 | 2313 | |
d62a17ae | 2314 | /* TODO - What if we have peers and networks configured, do we have to |
2315 | * kick-start them? | |
2316 | */ | |
7076bb2f FL |
2317 | } |
2318 | ||
50f74cf1 | 2319 | static int bgp_zebra_process_local_es(int cmd, struct zclient *zclient, |
2320 | zebra_size_t length, vrf_id_t vrf_id) | |
2321 | { | |
2322 | esi_t esi; | |
2323 | struct bgp *bgp = NULL; | |
2324 | struct stream *s = NULL; | |
2325 | char buf[ESI_STR_LEN]; | |
2326 | char buf1[INET6_ADDRSTRLEN]; | |
2327 | struct ipaddr originator_ip; | |
2328 | ||
2329 | memset(&esi, 0, sizeof(esi_t)); | |
2330 | memset(&originator_ip, 0, sizeof(struct ipaddr)); | |
2331 | ||
2332 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2333 | if (!bgp) | |
2334 | return 0; | |
2335 | ||
2336 | s = zclient->ibuf; | |
2337 | stream_get(&esi, s, sizeof(esi_t)); | |
2338 | stream_get(&originator_ip, s, sizeof(struct ipaddr)); | |
2339 | ||
2340 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2341 | zlog_debug("Rx %s ESI %s originator-ip %s", | |
2342 | (cmd == ZEBRA_LOCAL_ES_ADD) ? "add" : "del", | |
2343 | esi_to_str(&esi, buf, sizeof(buf)), | |
2344 | ipaddr2str(&originator_ip, buf1, sizeof(buf1))); | |
2345 | ||
2346 | if (cmd == ZEBRA_LOCAL_ES_ADD) | |
2347 | bgp_evpn_local_es_add(bgp, &esi, &originator_ip); | |
2348 | else | |
2349 | bgp_evpn_local_es_del(bgp, &esi, &originator_ip); | |
2350 | return 0; | |
2351 | } | |
2352 | ||
fe1dc5a3 MK |
2353 | static int bgp_zebra_process_local_l3vni(int cmd, struct zclient *zclient, |
2354 | zebra_size_t length, vrf_id_t vrf_id) | |
2355 | { | |
c48d9f5f | 2356 | int filter = 0; |
fe1dc5a3 | 2357 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2358 | vni_t l3vni = 0; |
fe1dc5a3 | 2359 | struct ethaddr rmac; |
b67a60d2 | 2360 | struct in_addr originator_ip; |
fe1dc5a3 MK |
2361 | struct stream *s; |
2362 | ||
2363 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
b67a60d2 | 2364 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2365 | s = zclient->ibuf; |
2366 | l3vni = stream_getl(s); | |
b67a60d2 | 2367 | if (cmd == ZEBRA_L3VNI_ADD) { |
fe1dc5a3 | 2368 | stream_get(&rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2369 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2370 | stream_get(&filter, s, sizeof(int)); |
b67a60d2 | 2371 | } |
fe1dc5a3 MK |
2372 | |
2373 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c48d9f5f | 2374 | zlog_debug("Rx L3-VNI %s VRF %s VNI %u RMAC %s filter %s", |
fe1dc5a3 | 2375 | (cmd == ZEBRA_L3VNI_ADD) ? "add" : "del", |
996c9314 | 2376 | vrf_id_to_name(vrf_id), l3vni, |
c48d9f5f MK |
2377 | prefix_mac2str(&rmac, buf, sizeof(buf)), |
2378 | filter ? "prefix-routes-only" : "none"); | |
fe1dc5a3 MK |
2379 | |
2380 | if (cmd == ZEBRA_L3VNI_ADD) | |
c48d9f5f MK |
2381 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &rmac, originator_ip, |
2382 | filter); | |
fe1dc5a3 MK |
2383 | else |
2384 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); | |
2385 | ||
2386 | return 0; | |
2387 | } | |
2388 | ||
d62a17ae | 2389 | static int bgp_zebra_process_local_vni(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; | |
a4d82a8a | 2395 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2396 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
d62a17ae | 2397 | |
2398 | s = zclient->ibuf; | |
2399 | vni = stream_getl(s); | |
29c53922 | 2400 | if (command == ZEBRA_VNI_ADD) { |
d62a17ae | 2401 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2402 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
2403 | } | |
2404 | ||
d62a17ae | 2405 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2406 | if (!bgp) | |
2407 | return 0; | |
2408 | ||
2409 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 MK |
2410 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
2411 | (command == ZEBRA_VNI_ADD) ? "add" : "del", | |
a4d82a8a PZ |
2412 | vrf_id_to_name(vrf_id), vni, |
2413 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2414 | |
2415 | if (command == ZEBRA_VNI_ADD) | |
2416 | return bgp_evpn_local_vni_add( | |
29c53922 MK |
2417 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
2418 | tenant_vrf_id); | |
d62a17ae | 2419 | else |
2420 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2421 | } |
2422 | ||
d62a17ae | 2423 | static int bgp_zebra_process_local_macip(int command, struct zclient *zclient, |
2424 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 2425 | { |
d62a17ae | 2426 | struct stream *s; |
2427 | vni_t vni; | |
2428 | struct bgp *bgp; | |
2429 | struct ethaddr mac; | |
2430 | struct ipaddr ip; | |
2431 | int ipa_len; | |
2432 | char buf[ETHER_ADDR_STRLEN]; | |
2433 | char buf1[INET6_ADDRSTRLEN]; | |
f07e1c99 | 2434 | uint8_t flags = 0; |
2435 | uint32_t seqnum = 0; | |
d62a17ae | 2436 | |
2437 | memset(&ip, 0, sizeof(ip)); | |
2438 | s = zclient->ibuf; | |
2439 | vni = stream_getl(s); | |
28328ea9 | 2440 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2441 | ipa_len = stream_getl(s); |
2442 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2443 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2444 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 QY |
2445 | "%u:Recv MACIP %s with invalid IP addr length %d", |
2446 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
2447 | ipa_len); | |
d62a17ae | 2448 | return -1; |
2449 | } | |
2450 | ||
2451 | if (ipa_len) { | |
2452 | ip.ipa_type = | |
2453 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2454 | stream_get(&ip.ip.addr, s, ipa_len); | |
2455 | } | |
f07e1c99 | 2456 | if (command == ZEBRA_MACIP_ADD) { |
2457 | flags = stream_getc(s); | |
2458 | seqnum = stream_getl(s); | |
2459 | } | |
d62a17ae | 2460 | |
2461 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2462 | if (!bgp) | |
2463 | return 0; | |
2464 | ||
2465 | if (BGP_DEBUG(zebra, ZEBRA)) | |
f07e1c99 | 2466 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u seq %u", |
1a98c087 MK |
2467 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
2468 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), | |
f07e1c99 | 2469 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum); |
d62a17ae | 2470 | |
2471 | if (command == ZEBRA_MACIP_ADD) | |
f07e1c99 | 2472 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
2473 | flags, seqnum); | |
d62a17ae | 2474 | else |
2475 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip); | |
128ea8ab | 2476 | } |
6aeb9e78 | 2477 | |
a4d82a8a | 2478 | static void bgp_zebra_process_local_ip_prefix(int cmd, struct zclient *zclient, |
31310b25 MK |
2479 | zebra_size_t length, |
2480 | vrf_id_t vrf_id) | |
2481 | { | |
2482 | struct stream *s = NULL; | |
2483 | struct bgp *bgp_vrf = NULL; | |
2484 | struct prefix p; | |
2485 | char buf[PREFIX_STRLEN]; | |
2486 | ||
2487 | memset(&p, 0, sizeof(struct prefix)); | |
2488 | s = zclient->ibuf; | |
2489 | stream_get(&p, s, sizeof(struct prefix)); | |
2490 | ||
2491 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2492 | if (!bgp_vrf) | |
2493 | return; | |
2494 | ||
2495 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2496 | zlog_debug("Recv prefix %s %s on vrf %s", | |
2497 | prefix2str(&p, buf, sizeof(buf)), | |
2498 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
2499 | vrf_id_to_name(vrf_id)); | |
2500 | ||
2501 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2502 | ||
2503 | if (p.family == AF_INET) | |
a4d82a8a PZ |
2504 | return bgp_evpn_advertise_type5_route( |
2505 | bgp_vrf, &p, NULL, AFI_IP, SAFI_UNICAST); | |
31310b25 | 2506 | else |
a4d82a8a PZ |
2507 | return bgp_evpn_advertise_type5_route( |
2508 | bgp_vrf, &p, NULL, AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2509 | |
2510 | } else { | |
2511 | if (p.family == AF_INET) | |
a4d82a8a PZ |
2512 | return bgp_evpn_withdraw_type5_route( |
2513 | bgp_vrf, &p, AFI_IP, SAFI_UNICAST); | |
31310b25 | 2514 | else |
a4d82a8a PZ |
2515 | return bgp_evpn_withdraw_type5_route( |
2516 | bgp_vrf, &p, AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2517 | } |
2518 | } | |
2519 | ||
955bfd98 PZ |
2520 | static void bgp_zebra_process_label_chunk( |
2521 | int cmd, | |
2522 | struct zclient *zclient, | |
2523 | zebra_size_t length, | |
2524 | vrf_id_t vrf_id) | |
2525 | { | |
2526 | struct stream *s = NULL; | |
2527 | uint8_t response_keep; | |
2528 | uint32_t first; | |
2529 | uint32_t last; | |
aec865e4 FR |
2530 | uint8_t proto; |
2531 | unsigned short instance; | |
955bfd98 PZ |
2532 | |
2533 | s = zclient->ibuf; | |
aec865e4 FR |
2534 | STREAM_GETC(s, proto); |
2535 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2536 | STREAM_GETC(s, response_keep); |
2537 | STREAM_GETL(s, first); | |
2538 | STREAM_GETL(s, last); | |
2539 | ||
aec865e4 | 2540 | if (zclient->redist_default != proto) { |
e50f7cfd | 2541 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2542 | proto); |
aec865e4 FR |
2543 | return; |
2544 | } | |
2545 | if (zclient->instance != instance) { | |
e50f7cfd | 2546 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2547 | proto); |
aec865e4 FR |
2548 | return; |
2549 | } | |
2550 | ||
955bfd98 PZ |
2551 | if (first > last || |
2552 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2553 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2554 | ||
e50f7cfd | 2555 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2556 | __func__, first, last); |
955bfd98 PZ |
2557 | return; |
2558 | } | |
2559 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2560 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2561 | first, last, response_keep); | |
2562 | } | |
2563 | ||
e70e9f8e | 2564 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2565 | |
2566 | stream_failure: /* for STREAM_GETX */ | |
2567 | return; | |
2568 | } | |
2569 | ||
342213ea DS |
2570 | extern struct zebra_privs_t bgpd_privs; |
2571 | ||
f533be73 | 2572 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2573 | { |
d62a17ae | 2574 | zclient_num_connects = 0; |
2575 | ||
2576 | /* Set default values. */ | |
26f63a1e | 2577 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2578 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2579 | zclient->zebra_connected = bgp_zebra_connected; |
2580 | zclient->router_id_update = bgp_router_id_update; | |
2581 | zclient->interface_add = bgp_interface_add; | |
2582 | zclient->interface_delete = bgp_interface_delete; | |
2583 | zclient->interface_address_add = bgp_interface_address_add; | |
2584 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2585 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2586 | zclient->interface_nbr_address_delete = | |
2587 | bgp_interface_nbr_address_delete; | |
2588 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2589 | zclient->redistribute_route_add = zebra_read_route; |
2590 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2591 | zclient->interface_up = bgp_interface_up; |
2592 | zclient->interface_down = bgp_interface_down; | |
d62a17ae | 2593 | zclient->nexthop_update = bgp_read_nexthop_update; |
2594 | zclient->import_check_update = bgp_read_import_check_update; | |
2595 | zclient->fec_update = bgp_read_fec_update; | |
50f74cf1 | 2596 | zclient->local_es_add = bgp_zebra_process_local_es; |
2597 | zclient->local_es_del = bgp_zebra_process_local_es; | |
d62a17ae | 2598 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
2599 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
2600 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2601 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2602 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2603 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2604 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2605 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2606 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
2607 | zclient->rule_notify_owner = rule_notify_owner; |
2608 | zclient->ipset_notify_owner = ipset_notify_owner; | |
2609 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 2610 | zclient->iptable_notify_owner = iptable_notify_owner; |
f533be73 | 2611 | zclient->instance = instance; |
718e3744 | 2612 | } |
bb86c601 | 2613 | |
d62a17ae | 2614 | void bgp_zebra_destroy(void) |
bb86c601 | 2615 | { |
d62a17ae | 2616 | if (zclient == NULL) |
2617 | return; | |
2618 | zclient_stop(zclient); | |
2619 | zclient_free(zclient); | |
2620 | zclient = NULL; | |
bb86c601 | 2621 | } |
afbb1c59 | 2622 | |
d62a17ae | 2623 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2624 | { |
d62a17ae | 2625 | return zclient_num_connects; |
afbb1c59 | 2626 | } |
30d50e6d PG |
2627 | |
2628 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, bool install) | |
2629 | { | |
2630 | struct stream *s; | |
2631 | ||
2632 | if (pbra->install_in_progress) | |
2633 | return; | |
f0936054 PG |
2634 | if (BGP_DEBUG(zebra, ZEBRA)) |
2635 | zlog_debug("%s: table %d fwmark %d %d", | |
2636 | __PRETTY_FUNCTION__, | |
2637 | pbra->table_id, pbra->fwmark, install); | |
30d50e6d PG |
2638 | s = zclient->obuf; |
2639 | stream_reset(s); | |
2640 | ||
2641 | zclient_create_header(s, | |
2642 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
2643 | VRF_DEFAULT); | |
2644 | stream_putl(s, 1); /* send one pbr action */ | |
2645 | ||
2646 | bgp_encode_pbr_rule_action(s, pbra); | |
2647 | ||
2648 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2649 | if (!zclient_send_message(zclient) && install) | |
2650 | pbra->install_in_progress = true; | |
2651 | } | |
2652 | ||
2653 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
2654 | { | |
2655 | struct stream *s; | |
2656 | ||
2657 | if (pbrim->install_in_progress) | |
2658 | return; | |
f0936054 | 2659 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2660 | zlog_debug("%s: name %s type %d %d, ID %u", |
f0936054 | 2661 | __PRETTY_FUNCTION__, |
88055124 PG |
2662 | pbrim->ipset_name, pbrim->type, |
2663 | install, pbrim->unique); | |
30d50e6d PG |
2664 | s = zclient->obuf; |
2665 | stream_reset(s); | |
2666 | ||
2667 | zclient_create_header(s, | |
2668 | install ? ZEBRA_IPSET_CREATE : | |
2669 | ZEBRA_IPSET_DESTROY, | |
2670 | VRF_DEFAULT); | |
2671 | ||
2672 | stream_putl(s, 1); /* send one pbr action */ | |
2673 | ||
2674 | bgp_encode_pbr_ipset_match(s, pbrim); | |
2675 | ||
2676 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2677 | if (!zclient_send_message(zclient) && install) | |
2678 | pbrim->install_in_progress = true; | |
2679 | } | |
2680 | ||
2681 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
2682 | bool install) | |
2683 | { | |
2684 | struct stream *s; | |
2685 | ||
2686 | if (pbrime->install_in_progress) | |
2687 | return; | |
f0936054 | 2688 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2689 | zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__, |
f0936054 | 2690 | pbrime->backpointer->ipset_name, |
88055124 | 2691 | pbrime->unique, install, pbrime->unique); |
30d50e6d PG |
2692 | s = zclient->obuf; |
2693 | stream_reset(s); | |
2694 | ||
2695 | zclient_create_header(s, | |
2696 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
2697 | ZEBRA_IPSET_ENTRY_DELETE, | |
2698 | VRF_DEFAULT); | |
2699 | ||
2700 | stream_putl(s, 1); /* send one pbr action */ | |
2701 | ||
2702 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
2703 | ||
2704 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2705 | if (!zclient_send_message(zclient) && install) | |
2706 | pbrime->install_in_progress = true; | |
2707 | } | |
c16a0a62 | 2708 | |
4762c213 PG |
2709 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s) |
2710 | { | |
2711 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2712 | struct bgp_pbr_interface_head *head; | |
2713 | struct bgp_pbr_interface *pbr_if; | |
2714 | struct interface *ifp; | |
2715 | ||
2716 | if (!bgp_pbr_cfg) | |
2717 | return; | |
2718 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2719 | ||
2720 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2721 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); | |
2722 | if (ifp) | |
2723 | stream_putl(s, ifp->ifindex); | |
2724 | } | |
2725 | } | |
2726 | ||
2727 | static int bgp_pbr_get_ifnumber(struct bgp *bgp) | |
2728 | { | |
2729 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2730 | struct bgp_pbr_interface_head *head; | |
2731 | struct bgp_pbr_interface *pbr_if; | |
2732 | int cnt = 0; | |
2733 | ||
2734 | if (!bgp_pbr_cfg) | |
2735 | return 0; | |
2736 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2737 | ||
2738 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2739 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) | |
2740 | cnt++; | |
2741 | } | |
2742 | return cnt; | |
2743 | } | |
2744 | ||
c16a0a62 PG |
2745 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
2746 | struct bgp_pbr_match *pbm, | |
2747 | bool install) | |
2748 | { | |
2749 | struct stream *s; | |
b5c40105 | 2750 | int ret = 0; |
4762c213 | 2751 | int nb_interface; |
c16a0a62 PG |
2752 | |
2753 | if (pbm->install_iptable_in_progress) | |
2754 | return; | |
f0936054 | 2755 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2756 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", |
f0936054 | 2757 | __PRETTY_FUNCTION__, pbm->ipset_name, |
88055124 PG |
2758 | pbm->type, pba->fwmark, install, |
2759 | pbm->unique2); | |
c16a0a62 PG |
2760 | s = zclient->obuf; |
2761 | stream_reset(s); | |
2762 | ||
2763 | zclient_create_header(s, | |
2764 | install ? ZEBRA_IPTABLE_ADD : | |
2765 | ZEBRA_IPTABLE_DELETE, | |
2766 | VRF_DEFAULT); | |
2767 | ||
2768 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
4762c213 PG |
2769 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp); |
2770 | stream_putl(s, nb_interface); | |
2771 | if (nb_interface) | |
2772 | bgp_encode_pbr_interface_list(pba->bgp, s); | |
c16a0a62 | 2773 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
2774 | ret = zclient_send_message(zclient); |
2775 | if (install) { | |
2776 | if (ret) | |
2777 | pba->refcnt++; | |
2778 | else | |
2779 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 2780 | } |
c16a0a62 | 2781 | } |
f7df1907 PG |
2782 | |
2783 | /* inject in table <table_id> a default route to: | |
2784 | * - if nexthop IP is present : to this nexthop | |
2785 | * - if vrf is different from local : to the matching VRF | |
2786 | */ | |
2787 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
2788 | afi_t afi, uint32_t table_id, bool announce) | |
2789 | { | |
2790 | struct zapi_nexthop *api_nh; | |
2791 | struct zapi_route api; | |
2792 | struct prefix p; | |
2793 | ||
2794 | if (!nh || nh->type != NEXTHOP_TYPE_IPV4 | |
2795 | || nh->vrf_id == VRF_UNKNOWN) | |
2796 | return; | |
2797 | memset(&p, 0, sizeof(struct prefix)); | |
2798 | /* default route */ | |
2799 | if (afi != AFI_IP) | |
2800 | return; | |
2801 | p.family = AF_INET; | |
2802 | memset(&api, 0, sizeof(api)); | |
2803 | api.vrf_id = bgp->vrf_id; | |
2804 | api.type = ZEBRA_ROUTE_BGP; | |
2805 | api.safi = SAFI_UNICAST; | |
2806 | api.prefix = p; | |
2807 | api.tableid = table_id; | |
2808 | api.nexthop_num = 1; | |
2809 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
2810 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
2811 | api_nh = &api.nexthops[0]; | |
2812 | ||
2813 | /* redirect IP */ | |
2814 | if (nh->gate.ipv4.s_addr) { | |
2815 | char buff[PREFIX_STRLEN]; | |
2816 | ||
2817 | api_nh->vrf_id = nh->vrf_id; | |
2818 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
2819 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
2820 | ||
2821 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
2822 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2823 | zlog_info("BGP: %s default route to %s table %d (redirect IP)", |
2824 | announce ? "adding" : "withdrawing", | |
f7df1907 PG |
2825 | buff, table_id); |
2826 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2827 | : ZEBRA_ROUTE_DELETE, | |
2828 | zclient, &api); | |
2829 | } else if (nh->vrf_id != bgp->vrf_id) { | |
2830 | struct vrf *vrf; | |
eb4244f8 | 2831 | struct interface *ifp; |
f7df1907 | 2832 | |
eb4244f8 | 2833 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
2834 | if (!vrf) |
2835 | return; | |
eb4244f8 PG |
2836 | /* create default route with interface <VRF> |
2837 | * with nexthop-vrf <VRF> | |
f7df1907 | 2838 | */ |
eb4244f8 PG |
2839 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
2840 | if (!ifp) | |
2841 | return; | |
2842 | api_nh->vrf_id = nh->vrf_id; | |
2843 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
2844 | api_nh->ifindex = ifp->ifindex; | |
2845 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2846 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
2847 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
2848 | vrf->name, table_id); |
2849 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2850 | : ZEBRA_ROUTE_DELETE, | |
2851 | zclient, &api); | |
f7df1907 PG |
2852 | return; |
2853 | } | |
2854 | } |