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Commit | Line | Data |
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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" |
0b9d9cd0 | 61 | #include "bgpd/bgp_evpn_private.h" |
6b0655a2 | 62 | |
718e3744 | 63 | /* All information about zebra. */ |
228da428 | 64 | struct zclient *zclient = NULL; |
718e3744 | 65 | |
ad4cbda1 | 66 | /* Can we install into zebra? */ |
d62a17ae | 67 | static inline int bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 68 | { |
d62a17ae | 69 | if (zclient->sock <= 0) |
70 | return 0; | |
ad4cbda1 | 71 | |
bb4ef1ae DS |
72 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
73 | zlog_debug("%s: No zebra instance to talk to, not installing information", | |
74 | __PRETTY_FUNCTION__); | |
d62a17ae | 75 | return 0; |
bb4ef1ae | 76 | } |
ad4cbda1 | 77 | |
d62a17ae | 78 | return 1; |
ad4cbda1 | 79 | } |
80 | ||
afbb1c59 LB |
81 | int zclient_num_connects; |
82 | ||
18a6dce6 | 83 | /* Router-id update message from zebra. */ |
d62a17ae | 84 | static int bgp_router_id_update(int command, struct zclient *zclient, |
85 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 86 | { |
d62a17ae | 87 | struct prefix router_id; |
718e3744 | 88 | |
d62a17ae | 89 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 90 | |
d62a17ae | 91 | if (BGP_DEBUG(zebra, ZEBRA)) { |
92 | char buf[PREFIX2STR_BUFFER]; | |
93 | prefix2str(&router_id, buf, sizeof(buf)); | |
94 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
95 | } | |
a39275d7 | 96 | |
d62a17ae | 97 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
98 | return 0; | |
718e3744 | 99 | } |
100 | ||
fb018d25 | 101 | /* Nexthop update message from zebra. */ |
d62a17ae | 102 | static int bgp_read_nexthop_update(int command, struct zclient *zclient, |
103 | zebra_size_t length, vrf_id_t vrf_id) | |
fb018d25 | 104 | { |
d62a17ae | 105 | bgp_parse_nexthop_update(command, vrf_id); |
106 | return 0; | |
078430f6 DS |
107 | } |
108 | ||
d62a17ae | 109 | static int bgp_read_import_check_update(int command, struct zclient *zclient, |
110 | zebra_size_t length, vrf_id_t vrf_id) | |
078430f6 | 111 | { |
d62a17ae | 112 | bgp_parse_nexthop_update(command, vrf_id); |
113 | return 0; | |
fb018d25 DS |
114 | } |
115 | ||
4a04e5f7 | 116 | /* Set or clear interface on which unnumbered neighbor is configured. This |
117 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
118 | * interface. | |
119 | */ | |
d62a17ae | 120 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
121 | struct interface *upd_ifp) | |
4a04e5f7 | 122 | { |
d62a17ae | 123 | struct listnode *node, *nnode; |
124 | struct peer *peer; | |
125 | ||
126 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
127 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
128 | if (upd_ifp) { | |
129 | peer->ifp = upd_ifp; | |
130 | bgp_zebra_initiate_radv(bgp, peer); | |
131 | } else { | |
132 | bgp_zebra_terminate_radv(bgp, peer); | |
133 | peer->ifp = upd_ifp; | |
134 | } | |
135 | } | |
136 | } | |
4a04e5f7 | 137 | } |
138 | ||
d62a17ae | 139 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
140 | zebra_size_t length) | |
cd1964ff | 141 | { |
d62a17ae | 142 | bgp_parse_fec_update(); |
143 | return 0; | |
cd1964ff DS |
144 | } |
145 | ||
d62a17ae | 146 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 147 | { |
d62a17ae | 148 | struct listnode *node, *nnode; |
149 | struct peer *peer; | |
150 | ||
151 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
152 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
153 | && peer->status != Established) { | |
154 | if (peer_active(peer)) | |
155 | BGP_EVENT_ADD(peer, BGP_Stop); | |
156 | BGP_EVENT_ADD(peer, BGP_Start); | |
157 | } | |
158 | } | |
a80beece DS |
159 | } |
160 | ||
d62a17ae | 161 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 162 | { |
d62a17ae | 163 | struct listnode *node; |
164 | struct connected *connected; | |
165 | struct interface *ifp; | |
166 | struct prefix *p; | |
167 | ||
168 | /* Kick-off the FSM for any relevant peers only if there is a | |
169 | * valid local address on the interface. | |
170 | */ | |
171 | ifp = ifc->ifp; | |
172 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
173 | p = connected->address; | |
174 | if (p->family == AF_INET6 | |
175 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
176 | break; | |
177 | } | |
178 | if (!connected) | |
179 | return; | |
180 | ||
181 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
182 | } |
183 | ||
d62a17ae | 184 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
185 | int del) | |
a80beece | 186 | { |
d62a17ae | 187 | struct listnode *node, *nnode; |
188 | struct peer *peer; | |
189 | struct interface *ifp; | |
190 | ||
191 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
192 | if (peer->conf_if | |
193 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
194 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
195 | BGP_EVENT_ADD(peer, BGP_Stop); | |
196 | } | |
197 | } | |
198 | /* Free neighbor also, if we're asked to. */ | |
199 | if (del) { | |
200 | ifp = ifc->ifp; | |
201 | listnode_delete(ifp->nbr_connected, ifc); | |
202 | nbr_connected_free(ifc); | |
203 | } | |
a80beece DS |
204 | } |
205 | ||
718e3744 | 206 | /* Inteface addition message from zebra. */ |
d62a17ae | 207 | static int bgp_interface_add(int command, struct zclient *zclient, |
208 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 209 | { |
d62a17ae | 210 | struct interface *ifp; |
211 | struct bgp *bgp; | |
718e3744 | 212 | |
d62a17ae | 213 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
214 | if (!ifp) // unexpected | |
215 | return 0; | |
718e3744 | 216 | |
d62a17ae | 217 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
218 | zlog_debug("Rx Intf add VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 219 | |
d62a17ae | 220 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
221 | if (!bgp) | |
222 | return 0; | |
4a04e5f7 | 223 | |
d62a17ae | 224 | bgp_update_interface_nbrs(bgp, ifp, ifp); |
225 | return 0; | |
718e3744 | 226 | } |
227 | ||
d62a17ae | 228 | static int bgp_interface_delete(int command, struct zclient *zclient, |
229 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 230 | { |
d62a17ae | 231 | struct stream *s; |
232 | struct interface *ifp; | |
233 | struct bgp *bgp; | |
718e3744 | 234 | |
2f9123e0 | 235 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 236 | |
d62a17ae | 237 | s = zclient->ibuf; |
238 | ifp = zebra_interface_state_read(s, vrf_id); | |
239 | if (!ifp) /* This may happen if we've just unregistered for a VRF. */ | |
240 | return 0; | |
a4499b83 | 241 | |
d62a17ae | 242 | if (BGP_DEBUG(zebra, ZEBRA)) |
243 | zlog_debug("Rx Intf del VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 244 | |
85751d1d DS |
245 | if (bgp) |
246 | bgp_update_interface_nbrs(bgp, ifp, NULL); | |
64745052 | 247 | |
ff880b78 | 248 | if_set_index(ifp, IFINDEX_INTERNAL); |
d62a17ae | 249 | return 0; |
718e3744 | 250 | } |
251 | ||
d62a17ae | 252 | static int bgp_interface_up(int command, struct zclient *zclient, |
253 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 254 | { |
d62a17ae | 255 | struct stream *s; |
256 | struct interface *ifp; | |
257 | struct connected *c; | |
258 | struct nbr_connected *nc; | |
259 | struct listnode *node, *nnode; | |
260 | struct bgp *bgp; | |
6aeb9e78 | 261 | |
2f9123e0 | 262 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 263 | |
d62a17ae | 264 | s = zclient->ibuf; |
265 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 266 | |
d62a17ae | 267 | if (!ifp) |
268 | return 0; | |
718e3744 | 269 | |
d62a17ae | 270 | if (BGP_DEBUG(zebra, ZEBRA)) |
271 | zlog_debug("Rx Intf up VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 272 | |
85751d1d DS |
273 | if (!bgp) |
274 | return 0; | |
275 | ||
d62a17ae | 276 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
277 | bgp_connected_add(bgp, c); | |
718e3744 | 278 | |
d62a17ae | 279 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
280 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 281 | |
d62a17ae | 282 | return 0; |
718e3744 | 283 | } |
284 | ||
d62a17ae | 285 | static int bgp_interface_down(int command, struct zclient *zclient, |
286 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 287 | { |
d62a17ae | 288 | struct stream *s; |
289 | struct interface *ifp; | |
290 | struct connected *c; | |
291 | struct nbr_connected *nc; | |
292 | struct listnode *node, *nnode; | |
293 | struct bgp *bgp; | |
c19fe3c7 | 294 | struct peer *peer; |
6aeb9e78 | 295 | |
2f9123e0 | 296 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 297 | |
d62a17ae | 298 | s = zclient->ibuf; |
299 | ifp = zebra_interface_state_read(s, vrf_id); | |
300 | if (!ifp) | |
301 | return 0; | |
718e3744 | 302 | |
d62a17ae | 303 | if (BGP_DEBUG(zebra, ZEBRA)) |
304 | zlog_debug("Rx Intf down VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 305 | |
85751d1d DS |
306 | if (!bgp) |
307 | return 0; | |
308 | ||
d62a17ae | 309 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
310 | bgp_connected_delete(bgp, c); | |
718e3744 | 311 | |
d62a17ae | 312 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
313 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 314 | |
d62a17ae | 315 | /* Fast external-failover */ |
c19fe3c7 | 316 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 317 | |
d62a17ae | 318 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 319 | #if defined(HAVE_CUMULUS) |
d62a17ae | 320 | /* Take down directly connected EBGP peers as well as |
321 | * 1-hop BFD | |
322 | * tracked (directly connected) IBGP peers. | |
323 | */ | |
324 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1) | |
325 | && (!peer->bfd_info | |
326 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 327 | #else |
d62a17ae | 328 | /* Take down directly connected EBGP peers */ |
329 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
8c4f6381 | 330 | #endif |
d62a17ae | 331 | continue; |
718e3744 | 332 | |
d62a17ae | 333 | if (ifp == peer->nexthop.ifp) { |
334 | BGP_EVENT_ADD(peer, BGP_Stop); | |
335 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
336 | } | |
337 | } | |
338 | } | |
718e3744 | 339 | |
d62a17ae | 340 | return 0; |
718e3744 | 341 | } |
342 | ||
d62a17ae | 343 | static int bgp_interface_address_add(int command, struct zclient *zclient, |
344 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 345 | { |
d62a17ae | 346 | struct connected *ifc; |
2f9123e0 DS |
347 | struct bgp *bgp; |
348 | ||
349 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 350 | |
351 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); | |
352 | ||
353 | if (ifc == NULL) | |
354 | return 0; | |
355 | ||
356 | if (bgp_debug_zebra(ifc->address)) { | |
357 | char buf[PREFIX2STR_BUFFER]; | |
358 | prefix2str(ifc->address, buf, sizeof(buf)); | |
359 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
360 | ifc->ifp->name, buf); | |
361 | } | |
362 | ||
85751d1d DS |
363 | if (!bgp) |
364 | return 0; | |
365 | ||
d62a17ae | 366 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 367 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 368 | |
d62a17ae | 369 | /* If we have learnt of any neighbors on this interface, |
370 | * check to kick off any BGP interface-based neighbors, | |
371 | * but only if this is a link-local address. | |
372 | */ | |
373 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
374 | && !list_isempty(ifc->ifp->nbr_connected)) | |
375 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
376 | } | |
377 | ||
378 | return 0; | |
718e3744 | 379 | } |
380 | ||
d62a17ae | 381 | static int bgp_interface_address_delete(int command, struct zclient *zclient, |
382 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 383 | { |
d62a17ae | 384 | struct connected *ifc; |
385 | struct bgp *bgp; | |
6aeb9e78 | 386 | |
2f9123e0 | 387 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 388 | |
d62a17ae | 389 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); |
718e3744 | 390 | |
d62a17ae | 391 | if (ifc == NULL) |
392 | return 0; | |
718e3744 | 393 | |
d62a17ae | 394 | if (bgp_debug_zebra(ifc->address)) { |
395 | char buf[PREFIX2STR_BUFFER]; | |
396 | prefix2str(ifc->address, buf, sizeof(buf)); | |
397 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
398 | ifc->ifp->name, buf); | |
399 | } | |
a39275d7 | 400 | |
85751d1d | 401 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 402 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 403 | } |
718e3744 | 404 | |
d62a17ae | 405 | connected_free(ifc); |
718e3744 | 406 | |
d62a17ae | 407 | return 0; |
718e3744 | 408 | } |
409 | ||
d62a17ae | 410 | static int bgp_interface_nbr_address_add(int command, struct zclient *zclient, |
411 | zebra_size_t length, vrf_id_t vrf_id) | |
a80beece | 412 | { |
d62a17ae | 413 | struct nbr_connected *ifc = NULL; |
414 | struct bgp *bgp; | |
415 | ||
416 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); | |
417 | ||
418 | if (ifc == NULL) | |
419 | return 0; | |
420 | ||
421 | if (bgp_debug_zebra(ifc->address)) { | |
422 | char buf[PREFIX2STR_BUFFER]; | |
423 | prefix2str(ifc->address, buf, sizeof(buf)); | |
424 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
425 | ifc->ifp->name, buf); | |
426 | } | |
427 | ||
428 | if (if_is_operative(ifc->ifp)) { | |
429 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
430 | if (bgp) | |
431 | bgp_nbr_connected_add(bgp, ifc); | |
432 | } | |
433 | ||
434 | return 0; | |
a80beece DS |
435 | } |
436 | ||
d62a17ae | 437 | static int bgp_interface_nbr_address_delete(int command, |
438 | struct zclient *zclient, | |
439 | zebra_size_t length, | |
440 | vrf_id_t vrf_id) | |
a80beece | 441 | { |
d62a17ae | 442 | struct nbr_connected *ifc = NULL; |
443 | struct bgp *bgp; | |
6aeb9e78 | 444 | |
d62a17ae | 445 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); |
a80beece | 446 | |
d62a17ae | 447 | if (ifc == NULL) |
448 | return 0; | |
a80beece | 449 | |
d62a17ae | 450 | if (bgp_debug_zebra(ifc->address)) { |
451 | char buf[PREFIX2STR_BUFFER]; | |
452 | prefix2str(ifc->address, buf, sizeof(buf)); | |
453 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
454 | ifc->ifp->name, buf); | |
455 | } | |
a80beece | 456 | |
d62a17ae | 457 | if (if_is_operative(ifc->ifp)) { |
458 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
459 | if (bgp) | |
460 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
461 | } | |
a80beece | 462 | |
d62a17ae | 463 | nbr_connected_free(ifc); |
a80beece | 464 | |
d62a17ae | 465 | return 0; |
a80beece DS |
466 | } |
467 | ||
bfcd43b2 | 468 | /* VRF update for an interface. */ |
d62a17ae | 469 | static int bgp_interface_vrf_update(int command, struct zclient *zclient, |
470 | zebra_size_t length, vrf_id_t vrf_id) | |
bfcd43b2 | 471 | { |
d62a17ae | 472 | struct interface *ifp; |
473 | vrf_id_t new_vrf_id; | |
474 | struct connected *c; | |
475 | struct nbr_connected *nc; | |
476 | struct listnode *node, *nnode; | |
477 | struct bgp *bgp; | |
c19fe3c7 | 478 | struct peer *peer; |
bfcd43b2 | 479 | |
d62a17ae | 480 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
481 | &new_vrf_id); | |
482 | if (!ifp) | |
483 | return 0; | |
bfcd43b2 | 484 | |
d62a17ae | 485 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
486 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
487 | ifp->name, new_vrf_id); | |
bfcd43b2 | 488 | |
d62a17ae | 489 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 490 | |
85751d1d DS |
491 | if (bgp) { |
492 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
493 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 494 | |
85751d1d DS |
495 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
496 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 497 | |
85751d1d DS |
498 | /* Fast external-failover */ |
499 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
500 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
501 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
502 | continue; | |
bfcd43b2 | 503 | |
85751d1d DS |
504 | if (ifp == peer->nexthop.ifp) |
505 | BGP_EVENT_ADD(peer, BGP_Stop); | |
506 | } | |
d62a17ae | 507 | } |
508 | } | |
bfcd43b2 | 509 | |
d62a17ae | 510 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 511 | |
d62a17ae | 512 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
513 | if (!bgp) | |
514 | return 0; | |
bfcd43b2 | 515 | |
d62a17ae | 516 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
517 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 518 | |
d62a17ae | 519 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
520 | bgp_nbr_connected_add(bgp, nc); | |
521 | return 0; | |
bfcd43b2 | 522 | } |
523 | ||
718e3744 | 524 | /* Zebra route add and delete treatment. */ |
74489921 RW |
525 | static int zebra_read_route(int command, struct zclient *zclient, |
526 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 527 | { |
9de1f7ff | 528 | enum nexthop_types_t nhtype; |
74489921 RW |
529 | struct zapi_route api; |
530 | union g_addr nexthop; | |
9de1f7ff | 531 | ifindex_t ifindex; |
74489921 | 532 | int add, i; |
d62a17ae | 533 | struct bgp *bgp; |
534 | ||
535 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
536 | if (!bgp) | |
537 | return 0; | |
538 | ||
74489921 RW |
539 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
540 | return -1; | |
d62a17ae | 541 | |
74489921 RW |
542 | /* we completely ignore srcdest routes for now. */ |
543 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
544 | return 0; | |
d62a17ae | 545 | |
74489921 RW |
546 | /* ignore link-local address. */ |
547 | if (api.prefix.family == AF_INET6 | |
548 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
549 | return 0; | |
d62a17ae | 550 | |
74489921 RW |
551 | nexthop = api.nexthops[0].gate; |
552 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 553 | nhtype = api.nexthops[0].type; |
d62a17ae | 554 | |
74489921 RW |
555 | add = (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
556 | if (add) { | |
d62a17ae | 557 | /* |
558 | * The ADD message is actually an UPDATE and there is no | |
559 | * explicit DEL | |
560 | * for a prior redistributed route, if any. So, perform an | |
561 | * implicit | |
562 | * DEL processing for the same redistributed route from any | |
563 | * other | |
564 | * source type. | |
565 | */ | |
566 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
567 | if (i != api.type) | |
74489921 | 568 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 569 | api.instance); |
570 | } | |
571 | ||
572 | /* Now perform the add/update. */ | |
74489921 | 573 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
574 | nhtype, api.metric, api.type, api.instance, |
575 | api.tag); | |
d62a17ae | 576 | } else { |
74489921 RW |
577 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
578 | api.instance); | |
a39275d7 | 579 | } |
d62a17ae | 580 | |
74489921 RW |
581 | if (bgp_debug_zebra(&api.prefix)) { |
582 | char buf[2][PREFIX_STRLEN]; | |
583 | ||
584 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
77e62f2b | 585 | if (add) { |
586 | inet_ntop(api.prefix.family, &nexthop, buf[1], | |
587 | sizeof(buf[1])); | |
588 | zlog_debug( | |
589 | "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI, | |
590 | vrf_id, zebra_route_string(api.type), | |
591 | api.instance, buf[0], buf[1], nhtype, | |
592 | ifindex, api.metric, api.tag); | |
593 | } else { | |
594 | zlog_debug( | |
595 | "Rx route DEL VRF %u %s[%d] %s", | |
596 | vrf_id, zebra_route_string(api.type), | |
597 | api.instance, buf[0]); | |
598 | } | |
d62a17ae | 599 | } |
600 | ||
601 | return 0; | |
718e3744 | 602 | } |
6b0655a2 | 603 | |
d62a17ae | 604 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 605 | { |
f4e14fdb | 606 | struct vrf *vrf; |
d62a17ae | 607 | struct listnode *cnode; |
608 | struct interface *ifp; | |
609 | struct connected *connected; | |
610 | struct prefix_ipv4 p; | |
611 | struct prefix *cp; | |
612 | ||
f4e14fdb RW |
613 | vrf = vrf_lookup_by_id(vrf_id); |
614 | if (!vrf) | |
615 | return NULL; | |
616 | ||
d62a17ae | 617 | p.family = AF_INET; |
618 | p.prefix = *addr; | |
619 | p.prefixlen = IPV4_MAX_BITLEN; | |
620 | ||
451fda4f | 621 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 622 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
623 | cp = connected->address; | |
624 | ||
625 | if (cp->family == AF_INET) | |
626 | if (prefix_match(cp, (struct prefix *)&p)) | |
627 | return ifp; | |
628 | } | |
718e3744 | 629 | } |
d62a17ae | 630 | return NULL; |
718e3744 | 631 | } |
632 | ||
d62a17ae | 633 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 634 | { |
f4e14fdb | 635 | struct vrf *vrf; |
d62a17ae | 636 | struct listnode *cnode; |
637 | struct interface *ifp; | |
638 | struct connected *connected; | |
639 | struct prefix *cp; | |
640 | ||
f4e14fdb RW |
641 | vrf = vrf_lookup_by_id(vrf_id); |
642 | if (!vrf) | |
643 | return NULL; | |
644 | ||
451fda4f | 645 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 646 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
647 | cp = connected->address; | |
648 | ||
649 | if (cp->family == AF_INET) | |
650 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
651 | return ifp; | |
652 | } | |
718e3744 | 653 | } |
d62a17ae | 654 | return NULL; |
718e3744 | 655 | } |
656 | ||
d62a17ae | 657 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
658 | vrf_id_t vrf_id) | |
718e3744 | 659 | { |
f4e14fdb | 660 | struct vrf *vrf; |
d62a17ae | 661 | struct listnode *cnode; |
662 | struct interface *ifp; | |
663 | struct connected *connected; | |
664 | struct prefix_ipv6 p; | |
665 | struct prefix *cp; | |
666 | ||
f4e14fdb RW |
667 | vrf = vrf_lookup_by_id(vrf_id); |
668 | if (!vrf) | |
669 | return NULL; | |
670 | ||
d62a17ae | 671 | p.family = AF_INET6; |
672 | p.prefix = *addr; | |
673 | p.prefixlen = IPV6_MAX_BITLEN; | |
674 | ||
451fda4f | 675 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 676 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
677 | cp = connected->address; | |
678 | ||
679 | if (cp->family == AF_INET6) | |
680 | if (prefix_match(cp, (struct prefix *)&p)) { | |
681 | if (IN6_IS_ADDR_LINKLOCAL( | |
682 | &cp->u.prefix6)) { | |
683 | if (ifindex == ifp->ifindex) | |
684 | return ifp; | |
685 | } else | |
686 | return ifp; | |
687 | } | |
688 | } | |
718e3744 | 689 | } |
d62a17ae | 690 | return NULL; |
718e3744 | 691 | } |
692 | ||
d62a17ae | 693 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
694 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 695 | { |
f4e14fdb | 696 | struct vrf *vrf; |
d62a17ae | 697 | struct listnode *cnode; |
698 | struct interface *ifp; | |
699 | struct connected *connected; | |
700 | struct prefix *cp; | |
701 | ||
f4e14fdb RW |
702 | vrf = vrf_lookup_by_id(vrf_id); |
703 | if (!vrf) | |
704 | return NULL; | |
705 | ||
451fda4f | 706 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 707 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
708 | cp = connected->address; | |
709 | ||
710 | if (cp->family == AF_INET6) | |
711 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
712 | if (IN6_IS_ADDR_LINKLOCAL( | |
713 | &cp->u.prefix6)) { | |
714 | if (ifindex == ifp->ifindex) | |
715 | return ifp; | |
716 | } else | |
717 | return ifp; | |
718 | } | |
719 | } | |
718e3744 | 720 | } |
d62a17ae | 721 | return NULL; |
718e3744 | 722 | } |
723 | ||
d62a17ae | 724 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 725 | { |
d62a17ae | 726 | struct listnode *cnode; |
727 | struct connected *connected; | |
728 | struct prefix *cp; | |
729 | ||
730 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
731 | cp = connected->address; | |
732 | ||
733 | if (cp->family == AF_INET6) | |
734 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
735 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
736 | return 1; | |
737 | } | |
738 | } | |
739 | return 0; | |
718e3744 | 740 | } |
741 | ||
d62a17ae | 742 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 743 | { |
d62a17ae | 744 | struct listnode *cnode; |
745 | struct connected *connected; | |
746 | struct prefix *cp; | |
747 | ||
748 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
749 | cp = connected->address; | |
750 | ||
751 | if (cp->family == AF_INET6) | |
752 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
753 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
754 | return 1; | |
755 | } | |
756 | } | |
757 | return 0; | |
718e3744 | 758 | } |
718e3744 | 759 | |
d62a17ae | 760 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 761 | { |
d62a17ae | 762 | struct listnode *cnode; |
763 | struct connected *connected; | |
764 | struct prefix *cp; | |
765 | ||
766 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
767 | cp = connected->address; | |
768 | if ((cp->family == AF_INET) | |
769 | && !ipv4_martian(&(cp->u.prefix4))) { | |
770 | *addr = cp->u.prefix4; | |
771 | return 1; | |
772 | } | |
773 | } | |
774 | return 0; | |
6ee06fa9 PM |
775 | } |
776 | ||
17cdd31e DS |
777 | |
778 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
779 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 780 | { |
d62a17ae | 781 | int ret = 0; |
782 | struct interface *ifp = NULL; | |
783 | ||
784 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
785 | ||
786 | if (!local) | |
17cdd31e | 787 | return false; |
d62a17ae | 788 | if (!remote) |
17cdd31e | 789 | return false; |
d62a17ae | 790 | |
791 | if (local->sa.sa_family == AF_INET) { | |
792 | nexthop->v4 = local->sin.sin_addr; | |
793 | if (peer->update_if) | |
794 | ifp = if_lookup_by_name(peer->update_if, | |
795 | peer->bgp->vrf_id); | |
796 | else | |
797 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
798 | peer->bgp->vrf_id); | |
718e3744 | 799 | } |
d62a17ae | 800 | if (local->sa.sa_family == AF_INET6) { |
801 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
802 | if (peer->conf_if || peer->ifname) | |
803 | ifp = if_lookup_by_name(peer->conf_if | |
804 | ? peer->conf_if | |
805 | : peer->ifname, | |
806 | peer->bgp->vrf_id); | |
807 | } else if (peer->update_if) | |
808 | ifp = if_lookup_by_name(peer->update_if, | |
809 | peer->bgp->vrf_id); | |
810 | else | |
811 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
812 | local->sin6.sin6_scope_id, | |
813 | peer->bgp->vrf_id); | |
718e3744 | 814 | } |
d62a17ae | 815 | |
17cdd31e DS |
816 | if (!ifp) { |
817 | /* | |
818 | * BGP views do not currently get proper data | |
819 | * from zebra( when attached ) to be able to | |
820 | * properly resolve nexthops, so give this | |
821 | * instance type a pass. | |
822 | */ | |
823 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
824 | return true; | |
825 | /* | |
826 | * If we have no interface data but we have established | |
827 | * some connection w/ zebra than something has gone | |
828 | * terribly terribly wrong here, so say this failed | |
829 | * If we do not any zebra connection then not | |
830 | * having a ifp pointer is ok. | |
831 | */ | |
832 | return zclient_num_connects ? false : true; | |
833 | } | |
d62a17ae | 834 | |
835 | nexthop->ifp = ifp; | |
836 | ||
837 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
838 | if (local->sa.sa_family == AF_INET) { | |
839 | /* IPv6 nexthop*/ | |
840 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
841 | ||
842 | if (!ret) { | |
843 | /* There is no global nexthop. Use link-local address as | |
844 | * both the | |
845 | * global and link-local nexthop. In this scenario, the | |
846 | * expectation | |
847 | * for interop is that the network admin would use a | |
848 | * route-map to | |
849 | * specify the global IPv6 nexthop. | |
850 | */ | |
851 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
852 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
853 | IPV6_MAX_BYTELEN); | |
854 | } else | |
855 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
856 | ||
857 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
858 | peer->shared_network = 1; | |
859 | else | |
860 | peer->shared_network = 0; | |
718e3744 | 861 | } |
718e3744 | 862 | |
d62a17ae | 863 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
864 | if (local->sa.sa_family == AF_INET6) { | |
865 | struct interface *direct = NULL; | |
866 | ||
867 | /* IPv4 nexthop. */ | |
868 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
869 | if (!ret && peer->local_id.s_addr) | |
870 | nexthop->v4 = peer->local_id; | |
871 | ||
872 | /* Global address*/ | |
873 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
874 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
875 | IPV6_MAX_BYTELEN); | |
876 | ||
877 | /* If directory connected set link-local address. */ | |
878 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
879 | remote->sin6.sin6_scope_id, | |
880 | peer->bgp->vrf_id); | |
881 | if (direct) | |
882 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
883 | } else | |
884 | /* Link-local address. */ | |
885 | { | |
886 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
887 | ||
888 | /* If there is no global address. Set link-local | |
889 | address as | |
890 | global. I know this break RFC specification... */ | |
891 | /* In this scenario, the expectation for interop is that | |
892 | * the | |
893 | * network admin would use a route-map to specify the | |
894 | * global | |
895 | * IPv6 nexthop. | |
896 | */ | |
897 | if (!ret) | |
898 | memcpy(&nexthop->v6_global, | |
899 | &local->sin6.sin6_addr, | |
900 | IPV6_MAX_BYTELEN); | |
901 | /* Always set the link-local address */ | |
902 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
903 | IPV6_MAX_BYTELEN); | |
904 | } | |
905 | ||
906 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
907 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
908 | remote->sin6.sin6_scope_id, | |
909 | peer->bgp->vrf_id)) | |
910 | peer->shared_network = 1; | |
911 | else | |
912 | peer->shared_network = 0; | |
913 | } | |
718e3744 | 914 | |
d62a17ae | 915 | /* KAME stack specific treatment. */ |
718e3744 | 916 | #ifdef KAME |
d62a17ae | 917 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
918 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
919 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
920 | } | |
921 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
922 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
923 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
924 | } | |
718e3744 | 925 | #endif /* KAME */ |
e33a4880 | 926 | |
d62a17ae | 927 | /* If we have identified the local interface, there is no error for now. |
928 | */ | |
17cdd31e | 929 | return true; |
718e3744 | 930 | } |
931 | ||
18ee8310 | 932 | static struct in6_addr * |
40381db7 | 933 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 934 | { |
d62a17ae | 935 | struct in6_addr *nexthop = NULL; |
936 | ||
937 | /* Only global address nexthop exists. */ | |
40381db7 DS |
938 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL) { |
939 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 940 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 941 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 942 | } |
d62a17ae | 943 | |
944 | /* If both global and link-local address present. */ | |
40381db7 | 945 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) { |
d62a17ae | 946 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
947 | if (path->attr->mp_nexthop_prefer_global) { |
948 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 949 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 950 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 951 | } else { |
d62a17ae | 952 | /* Workaround for Cisco's nexthop bug. */ |
953 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 DS |
954 | &path->attr->mp_nexthop_global) |
955 | && path->peer->su_remote->sa.sa_family | |
59a0f1cb | 956 | == AF_INET6) { |
d62a17ae | 957 | nexthop = |
40381db7 | 958 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 959 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 960 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 961 | ->ifindex; |
77e62f2b | 962 | } else { |
40381db7 | 963 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 964 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 965 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 966 | } |
d62a17ae | 967 | } |
968 | } | |
969 | ||
970 | return nexthop; | |
73ac8160 DS |
971 | } |
972 | ||
d62a17ae | 973 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
40381db7 | 974 | struct bgp_path_info *path) |
73ac8160 | 975 | { |
b4cb15c6 DL |
976 | route_map_result_t ret; |
977 | ||
40381db7 DS |
978 | ret = route_map_apply(map, p, RMAP_BGP, path); |
979 | bgp_attr_flush(path->attr); | |
b4cb15c6 DL |
980 | |
981 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 982 | return 1; |
983 | ||
984 | if (bgp_debug_zebra(p)) { | |
985 | if (p->family == AF_INET) { | |
986 | char buf[2][INET_ADDRSTRLEN]; | |
987 | zlog_debug( | |
988 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
989 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
990 | sizeof(buf[0])), | |
991 | p->prefixlen, | |
40381db7 | 992 | inet_ntop(AF_INET, &path->attr->nexthop, buf[1], |
d62a17ae | 993 | sizeof(buf[1]))); |
994 | } | |
995 | if (p->family == AF_INET6) { | |
996 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 997 | ifindex_t ifindex; |
998 | struct in6_addr *nexthop; | |
999 | ||
40381db7 | 1000 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 1001 | zlog_debug( |
1002 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
1003 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
1004 | sizeof(buf[0])), | |
1005 | p->prefixlen, | |
77e62f2b | 1006 | inet_ntop(AF_INET6, nexthop, |
d62a17ae | 1007 | buf[1], sizeof(buf[1]))); |
1008 | } | |
1009 | } | |
1010 | return 0; | |
73ac8160 DS |
1011 | } |
1012 | ||
b98f7728 PG |
1013 | static struct thread *bgp_tm_thread_connect; |
1014 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1015 | static bool bgp_tm_chunk_obtained; |
1016 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1017 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1018 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
1019 | |
1020 | static int bgp_zebra_tm_connect(struct thread *t) | |
1021 | { | |
1022 | struct zclient *zclient; | |
1023 | int delay = 10, ret = 0; | |
1024 | ||
1025 | zclient = THREAD_ARG(t); | |
1026 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1027 | delay = 60; | |
1028 | else { | |
1029 | bgp_tm_status_connected = false; | |
1030 | ret = tm_table_manager_connect(zclient); | |
1031 | } | |
1032 | if (ret < 0) { | |
b7cd3069 | 1033 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1034 | bgp_tm_status_connected = false; |
1035 | } else { | |
1036 | if (!bgp_tm_status_connected) | |
1037 | zlog_debug("Connecting to table manager. Success"); | |
1038 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1039 | if (!bgp_tm_chunk_obtained) { |
1040 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1041 | &bgp_tm_min, | |
6818e7e5 | 1042 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1043 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1044 | /* parse non installed entries */ |
1045 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1046 | } | |
31c28cd7 | 1047 | } |
b98f7728 PG |
1048 | } |
1049 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1050 | &bgp_tm_thread_connect); | |
1051 | return 0; | |
1052 | } | |
1053 | ||
6818e7e5 PG |
1054 | bool bgp_zebra_tm_chunk_obtained(void) |
1055 | { | |
1056 | return bgp_tm_chunk_obtained; | |
1057 | } | |
1058 | ||
31c28cd7 PG |
1059 | uint32_t bgp_zebra_tm_get_id(void) |
1060 | { | |
1061 | static int table_id; | |
1062 | ||
1063 | if (!bgp_tm_chunk_obtained) | |
1064 | return ++table_id; | |
1065 | return bgp_tm_min++; | |
1066 | } | |
1067 | ||
6818e7e5 | 1068 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1069 | { |
1070 | int delay = 1; | |
1071 | ||
1072 | /* if already set, do nothing | |
1073 | */ | |
1074 | if (bgp_tm_thread_connect != NULL) | |
1075 | return; | |
1076 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1077 | bgp_tm_chunk_obtained = false; |
1078 | bgp_tm_min = bgp_tm_max = 0; | |
1079 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1080 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1081 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1082 | &bgp_tm_thread_connect); | |
1083 | } | |
1084 | ||
1085 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1086 | uint32_t *start, uint32_t *end) | |
1087 | { | |
1088 | int ret; | |
1089 | ||
1090 | if (!bgp_tm_status_connected) | |
1091 | return -1; | |
1092 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1093 | if (ret < 0) { | |
e50f7cfd | 1094 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1095 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1096 | return -1; |
1097 | } | |
1098 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1099 | chunk_size, *start, *end); | |
1100 | return 0; | |
1101 | } | |
1102 | ||
77e62f2b | 1103 | static int update_ipv4nh_for_route_install(int nh_othervrf, |
1104 | struct in_addr *nexthop, | |
1105 | struct attr *attr, | |
1106 | bool is_evpn, | |
1107 | struct zapi_nexthop *api_nh) | |
1108 | { | |
1109 | api_nh->gate.ipv4 = *nexthop; | |
1110 | ||
1111 | /* Need to set fields appropriately for EVPN routes imported into | |
1112 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1113 | * connected routes leaked into a VRF. | |
1114 | */ | |
1115 | if (is_evpn) | |
1116 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1117 | else if (nh_othervrf && | |
1118 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { | |
1119 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1120 | api_nh->ifindex = attr->nh_ifindex; | |
1121 | } else | |
1122 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1123 | ||
1124 | return 1; | |
1125 | } | |
1126 | ||
4b7e6066 DS |
1127 | static int |
1128 | update_ipv6nh_for_route_install(int nh_othervrf, struct in6_addr *nexthop, | |
40381db7 DS |
1129 | ifindex_t ifindex, struct bgp_path_info *pi, |
1130 | struct bgp_path_info *best_pi, bool is_evpn, | |
4b7e6066 | 1131 | struct zapi_nexthop *api_nh) |
77e62f2b | 1132 | { |
1133 | struct attr *attr; | |
1134 | ||
40381db7 | 1135 | attr = pi->attr; |
77e62f2b | 1136 | |
1137 | if (is_evpn) | |
1138 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1139 | else if (nh_othervrf) { | |
1140 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { | |
1141 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1142 | api_nh->ifindex = attr->nh_ifindex; | |
1143 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1144 | if (ifindex == 0) | |
1145 | return 0; | |
1146 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1147 | api_nh->ifindex = ifindex; | |
1148 | } else { | |
1149 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1150 | api_nh->ifindex = 0; | |
1151 | } | |
1152 | } else { | |
1153 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1154 | if (pi == best_pi |
1155 | && attr->mp_nexthop_len | |
1156 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1157 | if (pi->peer->nexthop.ifp) | |
1158 | ifindex = | |
1159 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1160 | if (!ifindex) { |
40381db7 DS |
1161 | if (pi->peer->conf_if) |
1162 | ifindex = pi->peer->ifp->ifindex; | |
1163 | else if (pi->peer->ifname) | |
77e62f2b | 1164 | ifindex = ifname2ifindex( |
40381db7 DS |
1165 | pi->peer->ifname, |
1166 | pi->peer->bgp->vrf_id); | |
1167 | else if (pi->peer->nexthop.ifp) | |
1168 | ifindex = | |
1169 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1170 | } |
1171 | ||
1172 | if (ifindex == 0) | |
1173 | return 0; | |
1174 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1175 | api_nh->ifindex = ifindex; | |
1176 | } else { | |
1177 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1178 | api_nh->ifindex = 0; | |
1179 | } | |
1180 | } | |
1181 | api_nh->gate.ipv6 = *nexthop; | |
1182 | ||
1183 | return 1; | |
1184 | } | |
1185 | ||
d62a17ae | 1186 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
4b7e6066 | 1187 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1188 | safi_t safi) |
718e3744 | 1189 | { |
9913029c RW |
1190 | struct zapi_route api; |
1191 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 1192 | int nh_family; |
a74e593b | 1193 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1194 | int has_valid_label = 0; |
d7c0a89a | 1195 | uint8_t distance; |
d62a17ae | 1196 | struct peer *peer; |
4b7e6066 | 1197 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1198 | uint32_t metric; |
b4cb15c6 | 1199 | struct attr local_attr; |
4b7e6066 DS |
1200 | struct bgp_path_info local_info; |
1201 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1202 | route_tag_t tag; |
1203 | mpls_label_t label; | |
ddb5b488 | 1204 | int nh_othervrf = 0; |
960035b2 | 1205 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1206 | bool is_evpn; |
77e62f2b | 1207 | int nh_updated; |
d62a17ae | 1208 | |
1209 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1210 | * know of this instance. | |
1211 | */ | |
1212 | if (!bgp_install_info_to_zebra(bgp)) | |
1213 | return; | |
1214 | ||
d62a17ae | 1215 | if (bgp->main_zebra_update_hold) |
1216 | return; | |
1217 | ||
960035b2 | 1218 | if (bgp_debug_zebra(p)) |
ba1976db | 1219 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1220 | |
d90b788e A |
1221 | if (safi == SAFI_FLOWSPEC) { |
1222 | bgp_pbr_update_entry(bgp, &rn->p, info, afi, safi, true); | |
1223 | return; | |
1224 | } | |
529efa23 | 1225 | |
ddb5b488 PZ |
1226 | /* |
1227 | * vrf leaking support (will have only one nexthop) | |
1228 | */ | |
1229 | if (info->extra && info->extra->bgp_orig) | |
1230 | nh_othervrf = 1; | |
1231 | ||
9913029c RW |
1232 | /* Make Zebra API structure. */ |
1233 | memset(&api, 0, sizeof(api)); | |
1234 | api.vrf_id = bgp->vrf_id; | |
1235 | api.type = ZEBRA_ROUTE_BGP; | |
1236 | api.safi = safi; | |
1237 | api.prefix = *p; | |
1238 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1239 | ||
d62a17ae | 1240 | peer = info->peer; |
1241 | ||
ddb5b488 PZ |
1242 | if (info->type == ZEBRA_ROUTE_BGP |
1243 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1244 | ||
1ec90b5e | 1245 | /* Obtain peer from parent */ |
1246 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1247 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1248 | ->peer; | |
ddb5b488 PZ |
1249 | } |
1250 | ||
d62a17ae | 1251 | tag = info->attr->tag; |
1252 | ||
88493076 | 1253 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1254 | is_evpn = is_route_parent_evpn(info); |
1255 | if (is_evpn) | |
90264d64 | 1256 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1257 | |
d62a17ae | 1258 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1259 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1260 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1261 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1262 | } |
a39275d7 | 1263 | |
d62a17ae | 1264 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1265 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1266 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1267 | ||
4e8b02f4 | 1268 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1269 | |
2ad4f093 RW |
1270 | /* Metric is currently based on the best-path only */ |
1271 | metric = info->attr->med; | |
18ee8310 | 1272 | for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { |
a74e593b RW |
1273 | if (valid_nh_count >= multipath_num) |
1274 | break; | |
1275 | ||
b4cb15c6 DL |
1276 | *mpinfo_cp = *mpinfo; |
1277 | ||
d0d695f4 RW |
1278 | /* Get nexthop address-family */ |
1279 | if (p->family == AF_INET | |
1280 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1281 | nh_family = AF_INET; | |
1282 | else if (p->family == AF_INET6 | |
1283 | || (p->family == AF_INET | |
1284 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1285 | nh_family = AF_INET6; | |
1286 | else | |
1287 | continue; | |
1288 | ||
1374aec9 | 1289 | api_nh = &api.nexthops[valid_nh_count]; |
a12495e7 DS |
1290 | api_nh->vrf_id = nh_othervrf ? info->extra->bgp_orig->vrf_id |
1291 | : bgp->vrf_id; | |
2ad4f093 | 1292 | if (nh_family == AF_INET) { |
ddb5b488 | 1293 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1294 | if (mpinfo->extra) { |
1295 | zlog_debug( | |
1296 | "%s: p=%s, bgp_is_valid_label: %d", | |
1297 | __func__, buf_prefix, | |
1298 | bgp_is_valid_label( | |
1299 | &mpinfo->extra | |
1300 | ->label[0])); | |
1301 | } else { | |
1302 | zlog_debug( | |
1303 | "%s: p=%s, extra is NULL, no label", | |
1304 | __func__, buf_prefix); | |
1305 | } | |
1306 | } | |
1307 | ||
6c0a6053 | 1308 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1309 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1310 | apply doesn't modify the BGP route info. */ |
1311 | local_attr = *mpinfo->attr; | |
1312 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1313 | } |
b4cb15c6 | 1314 | |
ddb5b488 | 1315 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1316 | if (!bgp_table_map_apply( |
d62a17ae | 1317 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1318 | mpinfo_cp)) |
1319 | continue; | |
1320 | ||
1321 | /* metric/tag is only allowed to be | |
1322 | * overridden on 1st nexthop */ | |
1323 | if (mpinfo == info) { | |
1324 | metric = mpinfo_cp->attr->med; | |
1325 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1326 | } |
b4cb15c6 | 1327 | } |
d62a17ae | 1328 | |
77e62f2b | 1329 | nh_updated = update_ipv4nh_for_route_install( |
1330 | nh_othervrf, | |
1331 | &mpinfo_cp->attr->nexthop, | |
1332 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1333 | } else { |
f220da99 | 1334 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1335 | struct in6_addr *nexthop; |
9913029c | 1336 | |
6c0a6053 | 1337 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1338 | /* Copy info and attributes, so the route-map |
1339 | apply doesn't modify the BGP route info. */ | |
1340 | local_attr = *mpinfo->attr; | |
1341 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1342 | } |
1343 | ||
d62a17ae | 1344 | if (bgp->table_map[afi][safi].name) { |
1345 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1346 | apply doesn't modify the BGP route info. */ |
1347 | local_attr = *mpinfo->attr; | |
1348 | mpinfo_cp->attr = &local_attr; | |
1349 | ||
1350 | if (!bgp_table_map_apply( | |
d62a17ae | 1351 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1352 | mpinfo_cp)) |
1353 | continue; | |
1354 | ||
1355 | /* metric/tag is only allowed to be | |
1356 | * overridden on 1st nexthop */ | |
1357 | if (mpinfo == info) { | |
1358 | metric = mpinfo_cp->attr->med; | |
1359 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1360 | } |
b4cb15c6 | 1361 | } |
18ee8310 DS |
1362 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1363 | &ifindex); | |
77e62f2b | 1364 | nh_updated = update_ipv6nh_for_route_install( |
1365 | nh_othervrf, nexthop, ifindex, | |
1366 | mpinfo, info, is_evpn, api_nh); | |
2ad4f093 | 1367 | } |
d62a17ae | 1368 | |
77e62f2b | 1369 | /* Did we get proper nexthop info to update zebra? */ |
1370 | if (!nh_updated) | |
1371 | continue; | |
1372 | ||
a4d82a8a PZ |
1373 | if (mpinfo->extra |
1374 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1375 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1376 | has_valid_label = 1; |
b57ba6d2 | 1377 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1378 | |
2ad4f093 RW |
1379 | api_nh->label_num = 1; |
1380 | api_nh->labels[0] = label; | |
d62a17ae | 1381 | } |
22e63104 | 1382 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1383 | sizeof(struct ethaddr)); | |
2ad4f093 RW |
1384 | valid_nh_count++; |
1385 | } | |
d62a17ae | 1386 | |
77e62f2b | 1387 | |
a89b49cc | 1388 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1389 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1390 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1391 | |
5cc347c4 DS |
1392 | /* |
1393 | * When we create an aggregate route we must also | |
1394 | * install a Null0 route in the RIB, so overwrite | |
1395 | * what was written into api with a blackhole route | |
1396 | */ | |
1397 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1398 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1399 | else | |
2ad4f093 | 1400 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1401 | |
2ad4f093 RW |
1402 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1403 | api.metric = metric; | |
d62a17ae | 1404 | |
2ad4f093 RW |
1405 | if (tag) { |
1406 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1407 | api.tag = tag; | |
1408 | } | |
d62a17ae | 1409 | |
2ad4f093 RW |
1410 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1411 | if (distance) { | |
1412 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1413 | api.distance = distance; | |
1414 | } | |
d62a17ae | 1415 | |
2ad4f093 RW |
1416 | if (bgp_debug_zebra(p)) { |
1417 | char prefix_buf[PREFIX_STRLEN]; | |
1418 | char nh_buf[INET6_ADDRSTRLEN]; | |
1419 | char label_buf[20]; | |
1420 | int i; | |
1421 | ||
1422 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1423 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1424 | " count %d", | |
1425 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1426 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1427 | for (i = 0; i < api.nexthop_num; i++) { | |
1428 | api_nh = &api.nexthops[i]; | |
1429 | ||
77e62f2b | 1430 | if (api_nh->type == NEXTHOP_TYPE_IFINDEX) |
1431 | nh_buf[0] = '\0'; | |
1432 | else { | |
1433 | if (api_nh->type == NEXTHOP_TYPE_IPV4) | |
1434 | nh_family = AF_INET; | |
1435 | else | |
1436 | nh_family = AF_INET6; | |
1437 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1438 | sizeof(nh_buf)); | |
1439 | } | |
2ad4f093 RW |
1440 | |
1441 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1442 | if (has_valid_label |
1443 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1444 | sprintf(label_buf, "label %u", |
1445 | api_nh->labels[0]); | |
77e62f2b | 1446 | zlog_debug(" nhop [%d]: %s if %u VRF %u %s", |
1447 | i + 1, nh_buf, api_nh->ifindex, | |
1448 | api_nh->vrf_id, label_buf); | |
d62a17ae | 1449 | } |
1450 | } | |
2ad4f093 | 1451 | |
960035b2 PZ |
1452 | if (bgp_debug_zebra(p)) { |
1453 | int recursion_flag = 0; | |
1454 | ||
1455 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1456 | recursion_flag = 1; | |
1457 | ||
1458 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1459 | __func__, buf_prefix, | |
1460 | (recursion_flag ? "" : "NOT ")); | |
1461 | } | |
2ad4f093 RW |
1462 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1463 | : ZEBRA_ROUTE_DELETE, | |
1464 | zclient, &api); | |
718e3744 | 1465 | } |
1466 | ||
73ac8160 | 1467 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1468 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1469 | { |
d62a17ae | 1470 | struct bgp_node *rn; |
1471 | struct bgp_table *table; | |
40381db7 | 1472 | struct bgp_path_info *pi; |
d62a17ae | 1473 | |
1474 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1475 | * know of this instance. | |
1476 | */ | |
1477 | if (!bgp_install_info_to_zebra(bgp)) | |
1478 | return; | |
1479 | ||
1480 | table = bgp->rib[afi][safi]; | |
1481 | if (!table) | |
1482 | return; | |
1483 | ||
1484 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
6f94b685 | 1485 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 | 1486 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1487 | |
40381db7 DS |
1488 | (pi->type == ZEBRA_ROUTE_BGP |
1489 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1490 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1491 | |
40381db7 | 1492 | bgp_zebra_announce(rn, &rn->p, pi, bgp, afi, |
d62a17ae | 1493 | safi); |
73ac8160 DS |
1494 | } |
1495 | ||
4b7e6066 | 1496 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1497 | struct bgp *bgp, safi_t safi) |
718e3744 | 1498 | { |
2ad4f093 | 1499 | struct zapi_route api; |
f7df1907 | 1500 | struct peer *peer; |
ddb5b488 | 1501 | |
d62a17ae | 1502 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1503 | * know of this instance. | |
1504 | */ | |
568e10ca | 1505 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1506 | return; |
1507 | ||
f7df1907 PG |
1508 | if (safi == SAFI_FLOWSPEC) { |
1509 | peer = info->peer; | |
d90b788e A |
1510 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1511 | return; | |
f7df1907 | 1512 | } |
529efa23 | 1513 | |
2ad4f093 | 1514 | memset(&api, 0, sizeof(api)); |
568e10ca | 1515 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1516 | api.type = ZEBRA_ROUTE_BGP; |
1517 | api.safi = safi; | |
1518 | api.prefix = *p; | |
d62a17ae | 1519 | |
88493076 | 1520 | /* If the route's source is EVPN, flag as such. */ |
1521 | if (is_route_parent_evpn(info)) | |
90264d64 | 1522 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1523 | |
2ad4f093 RW |
1524 | if (bgp_debug_zebra(p)) { |
1525 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1526 | |
2ad4f093 | 1527 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1528 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1529 | } |
d62a17ae | 1530 | |
2ad4f093 | 1531 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1532 | } |
56c1f7d8 | 1533 | |
d7c0a89a QY |
1534 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1535 | unsigned short instance) | |
7c8ff89e | 1536 | { |
d62a17ae | 1537 | struct list *red_list; |
1538 | struct listnode *node; | |
1539 | struct bgp_redist *red; | |
7c8ff89e | 1540 | |
d62a17ae | 1541 | red_list = bgp->redist[afi][type]; |
1542 | if (!red_list) | |
1543 | return (NULL); | |
7c8ff89e | 1544 | |
d62a17ae | 1545 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1546 | if (red->instance == instance) | |
1547 | return red; | |
7c8ff89e | 1548 | |
d62a17ae | 1549 | return NULL; |
7c8ff89e DS |
1550 | } |
1551 | ||
d7c0a89a QY |
1552 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1553 | unsigned short instance) | |
7c8ff89e | 1554 | { |
d62a17ae | 1555 | struct list *red_list; |
1556 | struct bgp_redist *red; | |
7c8ff89e | 1557 | |
d62a17ae | 1558 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1559 | if (red) | |
1560 | return red; | |
7c8ff89e | 1561 | |
d62a17ae | 1562 | if (!bgp->redist[afi][type]) |
1563 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1564 | |
d62a17ae | 1565 | red_list = bgp->redist[afi][type]; |
1566 | red = (struct bgp_redist *)XCALLOC(MTYPE_BGP_REDIST, | |
1567 | sizeof(struct bgp_redist)); | |
1568 | red->instance = instance; | |
7c8ff89e | 1569 | |
d62a17ae | 1570 | listnode_add(red_list, red); |
7c8ff89e | 1571 | |
d62a17ae | 1572 | return red; |
7c8ff89e DS |
1573 | } |
1574 | ||
d7c0a89a QY |
1575 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1576 | unsigned short instance) | |
7c8ff89e | 1577 | { |
d62a17ae | 1578 | struct bgp_redist *red; |
1579 | ||
1580 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1581 | ||
1582 | if (red) { | |
1583 | listnode_delete(bgp->redist[afi][type], red); | |
1584 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1585 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1586 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1587 | } |
7c8ff89e | 1588 | } |
6b0655a2 | 1589 | |
718e3744 | 1590 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1591 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1592 | unsigned short instance, bool changed) |
718e3744 | 1593 | { |
e923dd62 | 1594 | /* If redistribute options are changed call |
1595 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1596 | * the routes | |
1597 | */ | |
1598 | if (changed) | |
1599 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1600 | |
d62a17ae | 1601 | /* Return if already redistribute flag is set. */ |
1602 | if (instance) { | |
1603 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1604 | instance)) | |
1605 | return CMD_WARNING; | |
718e3744 | 1606 | |
d62a17ae | 1607 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1608 | } else { | |
1609 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1610 | return CMD_WARNING; | |
7076bb2f | 1611 | |
65efcfce | 1612 | #if ENABLE_BGP_VNC |
d62a17ae | 1613 | if (bgp->vrf_id == VRF_DEFAULT |
1614 | && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1615 | vnc_export_bgp_enable( | |
1616 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1617 | } | |
65efcfce LB |
1618 | #endif |
1619 | ||
d62a17ae | 1620 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1621 | } | |
718e3744 | 1622 | |
ea12cf11 DS |
1623 | /* |
1624 | * Don't try to register if we're not connected to Zebra or Zebra | |
1625 | * doesn't know of this instance. | |
1626 | * | |
1627 | * When we come up later well resend if needed. | |
d62a17ae | 1628 | */ |
1629 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1630 | return CMD_SUCCESS; |
a39275d7 | 1631 | |
d62a17ae | 1632 | if (BGP_DEBUG(zebra, ZEBRA)) |
1633 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1634 | bgp->vrf_id, afi, zebra_route_string(type), | |
1635 | instance); | |
518f0eb1 | 1636 | |
d62a17ae | 1637 | /* Send distribute add message to zebra. */ |
1638 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1639 | instance, bgp->vrf_id); | |
718e3744 | 1640 | |
d62a17ae | 1641 | return CMD_SUCCESS; |
718e3744 | 1642 | } |
1643 | ||
d62a17ae | 1644 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1645 | unsigned short instance) |
518f0eb1 | 1646 | { |
d62a17ae | 1647 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1648 | * know of this instance. | |
1649 | */ | |
1650 | if (!bgp_install_info_to_zebra(bgp)) | |
1651 | return -1; | |
1652 | ||
1653 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1654 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1655 | bgp->vrf_id, afi, zebra_route_string(type), | |
1656 | instance); | |
1657 | ||
1658 | /* Send distribute add message to zebra. */ | |
1659 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1660 | instance, bgp->vrf_id); | |
1661 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1662 | instance, bgp->vrf_id); | |
1663 | ||
1664 | return 0; | |
518f0eb1 DS |
1665 | } |
1666 | ||
718e3744 | 1667 | /* Redistribute with route-map specification. */ |
1de27621 DA |
1668 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1669 | struct route_map *route_map) | |
718e3744 | 1670 | { |
d62a17ae | 1671 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1672 | return 0; | |
718e3744 | 1673 | |
d62a17ae | 1674 | if (red->rmap.name) |
1675 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1676 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
1de27621 | 1677 | red->rmap.map = route_map; |
718e3744 | 1678 | |
d62a17ae | 1679 | return 1; |
718e3744 | 1680 | } |
1681 | ||
1682 | /* Redistribute with metric specification. */ | |
d62a17ae | 1683 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
d7c0a89a | 1684 | afi_t afi, int type, uint32_t metric) |
718e3744 | 1685 | { |
d62a17ae | 1686 | struct bgp_node *rn; |
40381db7 | 1687 | struct bgp_path_info *pi; |
d62a17ae | 1688 | |
1689 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1690 | return 0; | |
1691 | ||
1692 | red->redist_metric_flag = 1; | |
1693 | red->redist_metric = metric; | |
1694 | ||
1695 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1696 | rn = bgp_route_next(rn)) { | |
6f94b685 | 1697 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 DS |
1698 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1699 | && pi->type == type | |
1700 | && pi->instance == red->instance) { | |
d62a17ae | 1701 | struct attr *old_attr; |
1702 | struct attr new_attr; | |
1703 | ||
40381db7 | 1704 | bgp_attr_dup(&new_attr, pi->attr); |
d62a17ae | 1705 | new_attr.med = red->redist_metric; |
40381db7 DS |
1706 | old_attr = pi->attr; |
1707 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1708 | bgp_attr_unintern(&old_attr); |
1709 | ||
40381db7 | 1710 | bgp_path_info_set_flag(rn, pi, |
18ee8310 | 1711 | BGP_PATH_ATTR_CHANGED); |
d62a17ae | 1712 | bgp_process(bgp, rn, afi, SAFI_UNICAST); |
1713 | } | |
1714 | } | |
1715 | } | |
1716 | ||
1717 | return 1; | |
718e3744 | 1718 | } |
1719 | ||
1720 | /* Unset redistribution. */ | |
d62a17ae | 1721 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1722 | unsigned short instance) |
718e3744 | 1723 | { |
d62a17ae | 1724 | struct bgp_redist *red; |
1725 | ||
1726 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1727 | if (!red) | |
1728 | return CMD_SUCCESS; | |
1729 | ||
1730 | /* Return if zebra connection is disabled. */ | |
1731 | if (instance) { | |
1732 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1733 | instance)) | |
1734 | return CMD_WARNING; | |
1735 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1736 | } else { | |
1737 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1738 | return CMD_WARNING; | |
1739 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1740 | } | |
718e3744 | 1741 | |
65efcfce | 1742 | |
d62a17ae | 1743 | if (bgp_install_info_to_zebra(bgp)) { |
1744 | /* Send distribute delete message to zebra. */ | |
1745 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1746 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1747 | bgp->vrf_id, afi, zebra_route_string(type), | |
1748 | instance); | |
1749 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1750 | type, instance, bgp->vrf_id); | |
1751 | } | |
1752 | ||
1753 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1754 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1755 | ||
1756 | return CMD_SUCCESS; | |
718e3744 | 1757 | } |
1758 | ||
6aeb9e78 | 1759 | /* Unset redistribution. */ |
d62a17ae | 1760 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1761 | unsigned short instance) |
6aeb9e78 | 1762 | { |
d62a17ae | 1763 | struct bgp_redist *red; |
6aeb9e78 | 1764 | |
ddb5b488 PZ |
1765 | /* |
1766 | * vnc and vpn->vrf checks must be before red check because | |
1767 | * they operate within bgpd irrespective of zebra connection | |
1768 | * status. red lookup fails if there is no zebra connection. | |
1769 | */ | |
1770 | #if ENABLE_BGP_VNC | |
1771 | if (bgp->vrf_id == VRF_DEFAULT && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1772 | vnc_export_bgp_disable(bgp, afi); | |
1773 | } | |
1774 | #endif | |
ddb5b488 | 1775 | |
d62a17ae | 1776 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1777 | if (!red) | |
1778 | return CMD_SUCCESS; | |
6aeb9e78 | 1779 | |
d62a17ae | 1780 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1781 | |
d62a17ae | 1782 | /* Unset route-map. */ |
1783 | if (red->rmap.name) | |
1784 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1785 | red->rmap.name = NULL; | |
1786 | red->rmap.map = NULL; | |
6aeb9e78 | 1787 | |
d62a17ae | 1788 | /* Unset metric. */ |
1789 | red->redist_metric_flag = 0; | |
1790 | red->redist_metric = 0; | |
6aeb9e78 | 1791 | |
d62a17ae | 1792 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1793 | |
d62a17ae | 1794 | return CMD_SUCCESS; |
6aeb9e78 DS |
1795 | } |
1796 | ||
eb117f29 SK |
1797 | /* Update redistribute vrf bitmap during triggers like |
1798 | restart networking or delete/add VRFs */ | |
d62a17ae | 1799 | void bgp_update_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) |
eb117f29 | 1800 | { |
d62a17ae | 1801 | int i; |
1802 | afi_t afi; | |
1803 | ||
1804 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1805 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
48c74f88 DS |
1806 | if ((old_vrf_id == VRF_UNKNOWN) |
1807 | || vrf_bitmap_check(zclient->redist[afi][i], | |
1808 | old_vrf_id)) { | |
d62a17ae | 1809 | vrf_bitmap_unset(zclient->redist[afi][i], |
1810 | old_vrf_id); | |
1811 | vrf_bitmap_set(zclient->redist[afi][i], | |
1812 | bgp->vrf_id); | |
1813 | } | |
1814 | return; | |
eb117f29 SK |
1815 | } |
1816 | ||
d62a17ae | 1817 | void bgp_zclient_reset(void) |
718e3744 | 1818 | { |
d62a17ae | 1819 | zclient_reset(zclient); |
718e3744 | 1820 | } |
1821 | ||
ad4cbda1 | 1822 | /* Register this instance with Zebra. Invoked upon connect (for |
1823 | * default instance) and when other VRFs are learnt (or created and | |
1824 | * already learnt). | |
1825 | */ | |
d62a17ae | 1826 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1827 | { |
d62a17ae | 1828 | /* Don't try to register if we're not connected to Zebra */ |
1829 | if (!zclient || zclient->sock < 0) | |
1830 | return; | |
ad4cbda1 | 1831 | |
d62a17ae | 1832 | if (BGP_DEBUG(zebra, ZEBRA)) |
1833 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1834 | |
d62a17ae | 1835 | /* Register for router-id, interfaces, redistributed routes. */ |
1836 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1837 | |
d62a17ae | 1838 | /* For default instance, register to learn about VNIs, if appropriate. |
1839 | */ | |
a4d82a8a | 1840 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1841 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1842 | |
1843 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1844 | } |
1845 | ||
1846 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1847 | * being deleted (default or VRF) and it is already registered. | |
1848 | */ | |
d62a17ae | 1849 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1850 | { |
d62a17ae | 1851 | /* Don't try to deregister if we're not connected to Zebra */ |
1852 | if (zclient->sock < 0) | |
1853 | return; | |
ad4cbda1 | 1854 | |
d62a17ae | 1855 | if (BGP_DEBUG(zebra, ZEBRA)) |
1856 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1857 | |
d62a17ae | 1858 | /* For default instance, unregister learning about VNIs, if appropriate. |
1859 | */ | |
a4d82a8a | 1860 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1861 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1862 | |
d62a17ae | 1863 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1864 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1865 | } |
1866 | ||
d62a17ae | 1867 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1868 | { |
d62a17ae | 1869 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1870 | |
d62a17ae | 1871 | /* Don't try to initiate if we're not connected to Zebra */ |
1872 | if (zclient->sock < 0) | |
1873 | return; | |
4a04e5f7 | 1874 | |
d62a17ae | 1875 | if (BGP_DEBUG(zebra, ZEBRA)) |
1876 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1877 | peer->host); | |
4a04e5f7 | 1878 | |
d62a17ae | 1879 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1880 | ra_interval); | |
4a04e5f7 | 1881 | } |
1882 | ||
d62a17ae | 1883 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1884 | { |
d62a17ae | 1885 | /* Don't try to terminate if we're not connected to Zebra */ |
1886 | if (zclient->sock < 0) | |
1887 | return; | |
4a04e5f7 | 1888 | |
d62a17ae | 1889 | if (BGP_DEBUG(zebra, ZEBRA)) |
1890 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1891 | peer->host); | |
4a04e5f7 | 1892 | |
d62a17ae | 1893 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1894 | } |
1895 | ||
31310b25 MK |
1896 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1897 | { | |
1898 | struct stream *s = NULL; | |
1899 | ||
1900 | /* Check socket. */ | |
1901 | if (!zclient || zclient->sock < 0) | |
1902 | return 0; | |
1903 | ||
1904 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1905 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1906 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1907 | zlog_debug("%s: No zebra instance to talk to, cannot advertise subnet", | |
1908 | __PRETTY_FUNCTION__); | |
31310b25 | 1909 | return 0; |
bb4ef1ae | 1910 | } |
31310b25 MK |
1911 | |
1912 | s = zclient->obuf; | |
1913 | stream_reset(s); | |
1914 | ||
1915 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1916 | stream_putc(s, advertise); | |
1917 | stream_put3(s, vni); | |
1918 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1919 | ||
1920 | return zclient_send_message(zclient); | |
1921 | } | |
1922 | ||
1a98c087 MK |
1923 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1924 | { | |
1925 | struct stream *s = NULL; | |
1926 | ||
1927 | /* Check socket. */ | |
1928 | if (!zclient || zclient->sock < 0) | |
1929 | return 0; | |
1930 | ||
1931 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1932 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1933 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1934 | zlog_debug("%s: No zebra instance to talk to, not installing gw_macip", | |
1935 | __PRETTY_FUNCTION__); | |
1a98c087 | 1936 | return 0; |
bb4ef1ae | 1937 | } |
1a98c087 MK |
1938 | |
1939 | s = zclient->obuf; | |
1940 | stream_reset(s); | |
1941 | ||
1942 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
1943 | stream_putc(s, advertise); | |
cc6d5476 | 1944 | stream_putl(s, vni); |
1a98c087 MK |
1945 | stream_putw_at(s, 0, stream_get_endp(s)); |
1946 | ||
1947 | return zclient_send_message(zclient); | |
1948 | } | |
1949 | ||
fd069644 DS |
1950 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
1951 | enum vxlan_flood_control flood_ctrl) | |
1952 | { | |
1953 | struct stream *s; | |
1954 | ||
1955 | /* Check socket. */ | |
1956 | if (!zclient || zclient->sock < 0) | |
1957 | return 0; | |
1958 | ||
1959 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1960 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1961 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1962 | zlog_debug("%s: No zebra instance to talk to, not installing all vni", | |
1963 | __PRETTY_FUNCTION__); | |
fd069644 | 1964 | return 0; |
bb4ef1ae | 1965 | } |
fd069644 DS |
1966 | |
1967 | s = zclient->obuf; | |
1968 | stream_reset(s); | |
1969 | ||
1970 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
1971 | stream_putc(s, flood_ctrl); | |
1972 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1973 | ||
1974 | return zclient_send_message(zclient); | |
1975 | } | |
1976 | ||
d62a17ae | 1977 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 1978 | { |
d62a17ae | 1979 | struct stream *s; |
7724c0a1 | 1980 | |
d62a17ae | 1981 | /* Check socket. */ |
1982 | if (!zclient || zclient->sock < 0) | |
1983 | return 0; | |
7724c0a1 | 1984 | |
d62a17ae | 1985 | /* Don't try to register if Zebra doesn't know of this instance. */ |
1986 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1987 | return 0; | |
7724c0a1 | 1988 | |
d62a17ae | 1989 | s = zclient->obuf; |
1990 | stream_reset(s); | |
7724c0a1 | 1991 | |
d62a17ae | 1992 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
1993 | stream_putc(s, advertise); | |
fbac9605 DS |
1994 | /* Also inform current BUM handling setting. This is really |
1995 | * relevant only when 'advertise' is set. | |
1996 | */ | |
fd069644 | 1997 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 1998 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 1999 | |
d62a17ae | 2000 | return zclient_send_message(zclient); |
7724c0a1 | 2001 | } |
2002 | ||
0b9d9cd0 CS |
2003 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2004 | { | |
2005 | struct stream *s; | |
2006 | ||
2007 | /* Check socket. */ | |
2008 | if (!zclient || zclient->sock < 0) | |
2009 | return 0; | |
2010 | ||
2011 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2012 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2013 | return 0; | |
2014 | ||
2015 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2016 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2017 | bgp->evpn_info->dup_addr_detect ? | |
2018 | "enable" : "disable", | |
2019 | bgp->evpn_info->dad_max_moves, | |
2020 | bgp->evpn_info->dad_time, | |
2021 | bgp->evpn_info->dad_freeze ? | |
2022 | "enable" : "disable", | |
2023 | bgp->evpn_info->dad_freeze_time); | |
2024 | ||
2025 | s = zclient->obuf; | |
2026 | stream_reset(s); | |
2027 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2028 | bgp->vrf_id); | |
2029 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2030 | stream_putl(s, bgp->evpn_info->dad_time); | |
2031 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2032 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2033 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2034 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2035 | ||
2036 | return zclient_send_message(zclient); | |
2037 | } | |
2038 | ||
30d50e6d PG |
2039 | static int rule_notify_owner(int command, struct zclient *zclient, |
2040 | zebra_size_t length, vrf_id_t vrf_id) | |
2041 | { | |
2042 | uint32_t seqno, priority, unique; | |
2043 | enum zapi_rule_notify_owner note; | |
2044 | struct bgp_pbr_action *bgp_pbra; | |
2045 | ifindex_t ifi; | |
2046 | ||
2047 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
2048 | &ifi, ¬e)) | |
2049 | return -1; | |
2050 | ||
70eabd12 | 2051 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d PG |
2052 | if (!bgp_pbra) { |
2053 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2054 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
2055 | __PRETTY_FUNCTION__, unique); | |
2056 | return 0; | |
2057 | } | |
2058 | ||
2059 | switch (note) { | |
2060 | case ZAPI_RULE_FAIL_INSTALL: | |
2061 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2062 | zlog_debug("%s: Received RULE_FAIL_INSTALL", | |
2063 | __PRETTY_FUNCTION__); | |
2064 | bgp_pbra->installed = false; | |
2065 | bgp_pbra->install_in_progress = false; | |
2066 | break; | |
2067 | case ZAPI_RULE_INSTALLED: | |
2068 | bgp_pbra->installed = true; | |
2069 | bgp_pbra->install_in_progress = false; | |
2070 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2071 | zlog_debug("%s: Received RULE_INSTALLED", | |
2072 | __PRETTY_FUNCTION__); | |
2073 | break; | |
f18a08f5 | 2074 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2075 | case ZAPI_RULE_REMOVED: |
2076 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2077 | zlog_debug("%s: Received RULE REMOVED", | |
2078 | __PRETTY_FUNCTION__); | |
2079 | break; | |
2080 | } | |
2081 | ||
2082 | return 0; | |
2083 | } | |
2084 | ||
2085 | static int ipset_notify_owner(int command, struct zclient *zclient, | |
2086 | zebra_size_t length, vrf_id_t vrf_id) | |
2087 | { | |
2088 | uint32_t unique; | |
2089 | enum zapi_ipset_notify_owner note; | |
2090 | struct bgp_pbr_match *bgp_pbim; | |
2091 | ||
2092 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2093 | &unique, | |
2094 | ¬e)) | |
2095 | return -1; | |
2096 | ||
2097 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2098 | if (!bgp_pbim) { | |
2099 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2100 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
82e194ed | 2101 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2102 | return 0; |
2103 | } | |
2104 | ||
2105 | switch (note) { | |
2106 | case ZAPI_IPSET_FAIL_INSTALL: | |
2107 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2108 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", | |
2109 | __PRETTY_FUNCTION__); | |
2110 | bgp_pbim->installed = false; | |
2111 | bgp_pbim->install_in_progress = false; | |
2112 | break; | |
2113 | case ZAPI_IPSET_INSTALLED: | |
2114 | bgp_pbim->installed = true; | |
2115 | bgp_pbim->install_in_progress = false; | |
2116 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2117 | zlog_debug("%s: Received IPSET_INSTALLED", | |
2118 | __PRETTY_FUNCTION__); | |
2119 | break; | |
f18a08f5 | 2120 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2121 | case ZAPI_IPSET_REMOVED: |
2122 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2123 | zlog_debug("%s: Received IPSET REMOVED", | |
2124 | __PRETTY_FUNCTION__); | |
2125 | break; | |
2126 | } | |
2127 | ||
2128 | return 0; | |
2129 | } | |
2130 | ||
2131 | static int ipset_entry_notify_owner(int command, struct zclient *zclient, | |
2132 | zebra_size_t length, vrf_id_t vrf_id) | |
2133 | { | |
2134 | uint32_t unique; | |
2135 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2136 | enum zapi_ipset_entry_notify_owner note; | |
2137 | struct bgp_pbr_match_entry *bgp_pbime; | |
2138 | ||
2139 | if (!zapi_ipset_entry_notify_decode( | |
2140 | zclient->ibuf, | |
2141 | &unique, | |
2142 | ipset_name, | |
2143 | ¬e)) | |
2144 | return -1; | |
2145 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2146 | ipset_name, | |
2147 | unique); | |
2148 | if (!bgp_pbime) { | |
2149 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2150 | zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)", |
82e194ed | 2151 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2152 | return 0; |
2153 | } | |
2154 | ||
2155 | switch (note) { | |
2156 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2157 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2158 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
2159 | __PRETTY_FUNCTION__); | |
2160 | bgp_pbime->installed = false; | |
2161 | bgp_pbime->install_in_progress = false; | |
2162 | break; | |
2163 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2164 | { |
9b6d8fcf | 2165 | struct bgp_path_info *path; |
4b7e6066 DS |
2166 | struct bgp_path_info_extra *extra; |
2167 | ||
2168 | bgp_pbime->installed = true; | |
2169 | bgp_pbime->install_in_progress = false; | |
2170 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2171 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
2172 | __PRETTY_FUNCTION__); | |
9b6d8fcf DS |
2173 | /* link bgp_path_info to bpme */ |
2174 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2175 | extra = bgp_path_info_extra_get(path); | |
4b7e6066 DS |
2176 | if (extra->bgp_fs_pbr == NULL) |
2177 | extra->bgp_fs_pbr = list_new(); | |
2178 | listnode_add(extra->bgp_fs_pbr, bgp_pbime); | |
b588b642 | 2179 | } |
30d50e6d | 2180 | break; |
f18a08f5 | 2181 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2182 | case ZAPI_IPSET_ENTRY_REMOVED: |
2183 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2184 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
2185 | __PRETTY_FUNCTION__); | |
2186 | break; | |
2187 | } | |
2188 | return 0; | |
2189 | } | |
2190 | ||
c16a0a62 PG |
2191 | static int iptable_notify_owner(int command, struct zclient *zclient, |
2192 | zebra_size_t length, vrf_id_t vrf_id) | |
2193 | { | |
2194 | uint32_t unique; | |
2195 | enum zapi_iptable_notify_owner note; | |
2196 | struct bgp_pbr_match *bgpm; | |
2197 | ||
2198 | if (!zapi_iptable_notify_decode( | |
2199 | zclient->ibuf, | |
2200 | &unique, | |
2201 | ¬e)) | |
2202 | return -1; | |
2203 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2204 | if (!bgpm) { | |
2205 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed PG |
2206 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
2207 | __PRETTY_FUNCTION__, note, unique); | |
c16a0a62 PG |
2208 | return 0; |
2209 | } | |
2210 | switch (note) { | |
2211 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2212 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2213 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
2214 | __PRETTY_FUNCTION__); | |
2215 | bgpm->installed_in_iptable = false; | |
2216 | bgpm->install_iptable_in_progress = false; | |
2217 | break; | |
2218 | case ZAPI_IPTABLE_INSTALLED: | |
2219 | bgpm->installed_in_iptable = true; | |
2220 | bgpm->install_iptable_in_progress = false; | |
2221 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2222 | zlog_debug("%s: Received IPTABLE_INSTALLED", | |
2223 | __PRETTY_FUNCTION__); | |
a6b07429 | 2224 | bgpm->action->refcnt++; |
c16a0a62 | 2225 | break; |
f18a08f5 | 2226 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2227 | case ZAPI_IPTABLE_REMOVED: |
2228 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2229 | zlog_debug("%s: Received IPTABLE REMOVED", | |
2230 | __PRETTY_FUNCTION__); | |
2231 | break; | |
2232 | } | |
2233 | return 0; | |
2234 | } | |
2235 | ||
30d50e6d PG |
2236 | static void bgp_encode_pbr_rule_action(struct stream *s, |
2237 | struct bgp_pbr_action *pbra) | |
2238 | { | |
2239 | struct prefix any; | |
2240 | ||
2241 | stream_putl(s, 0); /* seqno unused */ | |
2242 | stream_putl(s, 0); /* ruleno unused */ | |
2243 | ||
2244 | stream_putl(s, pbra->unique); | |
2245 | ||
2246 | memset(&any, 0, sizeof(any)); | |
2247 | any.family = AF_INET; | |
2248 | stream_putc(s, any.family); | |
2249 | stream_putc(s, any.prefixlen); | |
2250 | stream_put(s, &any.u.prefix, prefix_blen(&any)); | |
2251 | ||
2252 | stream_putw(s, 0); /* src port */ | |
2253 | ||
2254 | stream_putc(s, any.family); | |
2255 | stream_putc(s, any.prefixlen); | |
2256 | stream_put(s, &any.u.prefix, prefix_blen(&any)); | |
2257 | ||
2258 | stream_putw(s, 0); /* dst port */ | |
2259 | ||
2260 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
2261 | ||
2262 | stream_putl(s, pbra->table_id); | |
2263 | ||
2264 | stream_putl(s, 0); /* ifindex unused */ | |
2265 | } | |
2266 | ||
2267 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2268 | struct bgp_pbr_match *pbim) | |
2269 | { | |
2270 | stream_putl(s, pbim->unique); | |
2271 | stream_putl(s, pbim->type); | |
2272 | ||
2273 | stream_put(s, pbim->ipset_name, | |
2274 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2275 | } |
2276 | ||
2277 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2278 | struct bgp_pbr_match_entry *pbime) | |
2279 | { | |
2280 | stream_putl(s, pbime->unique); | |
2281 | /* check that back pointer is not null */ | |
2282 | stream_put(s, pbime->backpointer->ipset_name, | |
2283 | ZEBRA_IPSET_NAME_SIZE); | |
2284 | ||
2285 | stream_putc(s, pbime->src.family); | |
2286 | stream_putc(s, pbime->src.prefixlen); | |
2287 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2288 | ||
2289 | stream_putc(s, pbime->dst.family); | |
2290 | stream_putc(s, pbime->dst.prefixlen); | |
2291 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2292 | |
2293 | stream_putw(s, pbime->src_port_min); | |
2294 | stream_putw(s, pbime->src_port_max); | |
2295 | stream_putw(s, pbime->dst_port_min); | |
2296 | stream_putw(s, pbime->dst_port_max); | |
2297 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2298 | } |
2299 | ||
c16a0a62 PG |
2300 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2301 | struct bgp_pbr_action *bpa, | |
2302 | struct bgp_pbr_match *pbm) | |
2303 | { | |
2304 | stream_putl(s, pbm->unique2); | |
2305 | ||
2306 | stream_putl(s, pbm->type); | |
2307 | ||
2308 | stream_putl(s, pbm->flags); | |
2309 | ||
2310 | /* TODO: correlate with what is contained | |
2311 | * into bgp_pbr_action. | |
2312 | * currently only forward supported | |
2313 | */ | |
2314 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2315 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2316 | else | |
2317 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2318 | stream_putl(s, bpa->fwmark); | |
2319 | stream_put(s, pbm->ipset_name, | |
2320 | ZEBRA_IPSET_NAME_SIZE); | |
83360720 PG |
2321 | stream_putw(s, pbm->pkt_len_min); |
2322 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2323 | stream_putw(s, pbm->tcp_flags); |
2324 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2325 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2326 | stream_putc(s, pbm->fragment); |
c16a0a62 PG |
2327 | } |
2328 | ||
ad4cbda1 | 2329 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2330 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2331 | { |
d62a17ae | 2332 | struct bgp *bgp; |
7076bb2f | 2333 | |
d62a17ae | 2334 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2335 | |
d62a17ae | 2336 | /* At this point, we may or may not have BGP instances configured, but |
2337 | * we're only interested in the default VRF (others wouldn't have learnt | |
2338 | * the VRF from Zebra yet.) | |
2339 | */ | |
2340 | bgp = bgp_get_default(); | |
2341 | if (!bgp) | |
2342 | return; | |
ad4cbda1 | 2343 | |
d62a17ae | 2344 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2345 | |
d62a17ae | 2346 | /* Send the client registration */ |
2347 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER); | |
2376c3f2 | 2348 | |
955bfd98 | 2349 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2350 | bgp_lp_event_zebra_up(); |
955bfd98 | 2351 | |
d62a17ae | 2352 | /* TODO - What if we have peers and networks configured, do we have to |
2353 | * kick-start them? | |
2354 | */ | |
7076bb2f FL |
2355 | } |
2356 | ||
50f74cf1 | 2357 | static int bgp_zebra_process_local_es(int cmd, struct zclient *zclient, |
2358 | zebra_size_t length, vrf_id_t vrf_id) | |
2359 | { | |
2360 | esi_t esi; | |
2361 | struct bgp *bgp = NULL; | |
2362 | struct stream *s = NULL; | |
2363 | char buf[ESI_STR_LEN]; | |
2364 | char buf1[INET6_ADDRSTRLEN]; | |
2365 | struct ipaddr originator_ip; | |
2366 | ||
2367 | memset(&esi, 0, sizeof(esi_t)); | |
2368 | memset(&originator_ip, 0, sizeof(struct ipaddr)); | |
2369 | ||
2370 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2371 | if (!bgp) | |
2372 | return 0; | |
2373 | ||
2374 | s = zclient->ibuf; | |
2375 | stream_get(&esi, s, sizeof(esi_t)); | |
2376 | stream_get(&originator_ip, s, sizeof(struct ipaddr)); | |
2377 | ||
2378 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2379 | zlog_debug("Rx %s ESI %s originator-ip %s", | |
2380 | (cmd == ZEBRA_LOCAL_ES_ADD) ? "add" : "del", | |
2381 | esi_to_str(&esi, buf, sizeof(buf)), | |
2382 | ipaddr2str(&originator_ip, buf1, sizeof(buf1))); | |
2383 | ||
2384 | if (cmd == ZEBRA_LOCAL_ES_ADD) | |
2385 | bgp_evpn_local_es_add(bgp, &esi, &originator_ip); | |
2386 | else | |
2387 | bgp_evpn_local_es_del(bgp, &esi, &originator_ip); | |
2388 | return 0; | |
2389 | } | |
2390 | ||
fe1dc5a3 MK |
2391 | static int bgp_zebra_process_local_l3vni(int cmd, struct zclient *zclient, |
2392 | zebra_size_t length, vrf_id_t vrf_id) | |
2393 | { | |
c48d9f5f | 2394 | int filter = 0; |
fe1dc5a3 | 2395 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2396 | vni_t l3vni = 0; |
fe1dc5a3 | 2397 | struct ethaddr rmac; |
b67a60d2 | 2398 | struct in_addr originator_ip; |
fe1dc5a3 MK |
2399 | struct stream *s; |
2400 | ||
2401 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
b67a60d2 | 2402 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2403 | s = zclient->ibuf; |
2404 | l3vni = stream_getl(s); | |
b67a60d2 | 2405 | if (cmd == ZEBRA_L3VNI_ADD) { |
fe1dc5a3 | 2406 | stream_get(&rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2407 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2408 | stream_get(&filter, s, sizeof(int)); |
b67a60d2 | 2409 | } |
fe1dc5a3 MK |
2410 | |
2411 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c48d9f5f | 2412 | zlog_debug("Rx L3-VNI %s VRF %s VNI %u RMAC %s filter %s", |
fe1dc5a3 | 2413 | (cmd == ZEBRA_L3VNI_ADD) ? "add" : "del", |
996c9314 | 2414 | vrf_id_to_name(vrf_id), l3vni, |
c48d9f5f MK |
2415 | prefix_mac2str(&rmac, buf, sizeof(buf)), |
2416 | filter ? "prefix-routes-only" : "none"); | |
fe1dc5a3 MK |
2417 | |
2418 | if (cmd == ZEBRA_L3VNI_ADD) | |
c48d9f5f MK |
2419 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &rmac, originator_ip, |
2420 | filter); | |
fe1dc5a3 MK |
2421 | else |
2422 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); | |
2423 | ||
2424 | return 0; | |
2425 | } | |
2426 | ||
d62a17ae | 2427 | static int bgp_zebra_process_local_vni(int command, struct zclient *zclient, |
2428 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 2429 | { |
d62a17ae | 2430 | struct stream *s; |
2431 | vni_t vni; | |
2432 | struct bgp *bgp; | |
a4d82a8a | 2433 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2434 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
d62a17ae | 2435 | |
2436 | s = zclient->ibuf; | |
2437 | vni = stream_getl(s); | |
29c53922 | 2438 | if (command == ZEBRA_VNI_ADD) { |
d62a17ae | 2439 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2440 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
2441 | } | |
2442 | ||
d62a17ae | 2443 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2444 | if (!bgp) | |
2445 | return 0; | |
2446 | ||
2447 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 MK |
2448 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
2449 | (command == ZEBRA_VNI_ADD) ? "add" : "del", | |
a4d82a8a PZ |
2450 | vrf_id_to_name(vrf_id), vni, |
2451 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2452 | |
2453 | if (command == ZEBRA_VNI_ADD) | |
2454 | return bgp_evpn_local_vni_add( | |
29c53922 MK |
2455 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
2456 | tenant_vrf_id); | |
d62a17ae | 2457 | else |
2458 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2459 | } |
2460 | ||
d62a17ae | 2461 | static int bgp_zebra_process_local_macip(int command, struct zclient *zclient, |
2462 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 2463 | { |
d62a17ae | 2464 | struct stream *s; |
2465 | vni_t vni; | |
2466 | struct bgp *bgp; | |
2467 | struct ethaddr mac; | |
2468 | struct ipaddr ip; | |
2469 | int ipa_len; | |
2470 | char buf[ETHER_ADDR_STRLEN]; | |
2471 | char buf1[INET6_ADDRSTRLEN]; | |
f07e1c99 | 2472 | uint8_t flags = 0; |
2473 | uint32_t seqnum = 0; | |
d62a17ae | 2474 | |
2475 | memset(&ip, 0, sizeof(ip)); | |
2476 | s = zclient->ibuf; | |
2477 | vni = stream_getl(s); | |
28328ea9 | 2478 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2479 | ipa_len = stream_getl(s); |
2480 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2481 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2482 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 QY |
2483 | "%u:Recv MACIP %s with invalid IP addr length %d", |
2484 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
2485 | ipa_len); | |
d62a17ae | 2486 | return -1; |
2487 | } | |
2488 | ||
2489 | if (ipa_len) { | |
2490 | ip.ipa_type = | |
2491 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2492 | stream_get(&ip.ip.addr, s, ipa_len); | |
2493 | } | |
f07e1c99 | 2494 | if (command == ZEBRA_MACIP_ADD) { |
2495 | flags = stream_getc(s); | |
2496 | seqnum = stream_getl(s); | |
2497 | } | |
d62a17ae | 2498 | |
2499 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2500 | if (!bgp) | |
2501 | return 0; | |
2502 | ||
2503 | if (BGP_DEBUG(zebra, ZEBRA)) | |
f07e1c99 | 2504 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u seq %u", |
1a98c087 MK |
2505 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
2506 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), | |
f07e1c99 | 2507 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum); |
d62a17ae | 2508 | |
2509 | if (command == ZEBRA_MACIP_ADD) | |
f07e1c99 | 2510 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
2511 | flags, seqnum); | |
d62a17ae | 2512 | else |
2513 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip); | |
128ea8ab | 2514 | } |
6aeb9e78 | 2515 | |
a4d82a8a | 2516 | static void bgp_zebra_process_local_ip_prefix(int cmd, struct zclient *zclient, |
31310b25 MK |
2517 | zebra_size_t length, |
2518 | vrf_id_t vrf_id) | |
2519 | { | |
2520 | struct stream *s = NULL; | |
2521 | struct bgp *bgp_vrf = NULL; | |
2522 | struct prefix p; | |
2523 | char buf[PREFIX_STRLEN]; | |
2524 | ||
2525 | memset(&p, 0, sizeof(struct prefix)); | |
2526 | s = zclient->ibuf; | |
2527 | stream_get(&p, s, sizeof(struct prefix)); | |
2528 | ||
2529 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2530 | if (!bgp_vrf) | |
2531 | return; | |
2532 | ||
2533 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2534 | zlog_debug("Recv prefix %s %s on vrf %s", | |
2535 | prefix2str(&p, buf, sizeof(buf)), | |
2536 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
2537 | vrf_id_to_name(vrf_id)); | |
2538 | ||
2539 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2540 | ||
2541 | if (p.family == AF_INET) | |
d90b788e A |
2542 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2543 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 2544 | else |
d90b788e A |
2545 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2546 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2547 | |
2548 | } else { | |
2549 | if (p.family == AF_INET) | |
d90b788e A |
2550 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
2551 | SAFI_UNICAST); | |
31310b25 | 2552 | else |
d90b788e A |
2553 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
2554 | SAFI_UNICAST); | |
31310b25 MK |
2555 | } |
2556 | } | |
2557 | ||
955bfd98 PZ |
2558 | static void bgp_zebra_process_label_chunk( |
2559 | int cmd, | |
2560 | struct zclient *zclient, | |
2561 | zebra_size_t length, | |
2562 | vrf_id_t vrf_id) | |
2563 | { | |
2564 | struct stream *s = NULL; | |
2565 | uint8_t response_keep; | |
2566 | uint32_t first; | |
2567 | uint32_t last; | |
aec865e4 FR |
2568 | uint8_t proto; |
2569 | unsigned short instance; | |
955bfd98 PZ |
2570 | |
2571 | s = zclient->ibuf; | |
aec865e4 FR |
2572 | STREAM_GETC(s, proto); |
2573 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2574 | STREAM_GETC(s, response_keep); |
2575 | STREAM_GETL(s, first); | |
2576 | STREAM_GETL(s, last); | |
2577 | ||
aec865e4 | 2578 | if (zclient->redist_default != proto) { |
e50f7cfd | 2579 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2580 | proto); |
aec865e4 FR |
2581 | return; |
2582 | } | |
2583 | if (zclient->instance != instance) { | |
e50f7cfd | 2584 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2585 | proto); |
aec865e4 FR |
2586 | return; |
2587 | } | |
2588 | ||
955bfd98 PZ |
2589 | if (first > last || |
2590 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2591 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2592 | ||
e50f7cfd | 2593 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2594 | __func__, first, last); |
955bfd98 PZ |
2595 | return; |
2596 | } | |
2597 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2598 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2599 | first, last, response_keep); | |
2600 | } | |
2601 | ||
e70e9f8e | 2602 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2603 | |
2604 | stream_failure: /* for STREAM_GETX */ | |
2605 | return; | |
2606 | } | |
2607 | ||
342213ea DS |
2608 | extern struct zebra_privs_t bgpd_privs; |
2609 | ||
f533be73 | 2610 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2611 | { |
d62a17ae | 2612 | zclient_num_connects = 0; |
2613 | ||
2614 | /* Set default values. */ | |
26f63a1e | 2615 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2616 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2617 | zclient->zebra_connected = bgp_zebra_connected; |
2618 | zclient->router_id_update = bgp_router_id_update; | |
2619 | zclient->interface_add = bgp_interface_add; | |
2620 | zclient->interface_delete = bgp_interface_delete; | |
2621 | zclient->interface_address_add = bgp_interface_address_add; | |
2622 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2623 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2624 | zclient->interface_nbr_address_delete = | |
2625 | bgp_interface_nbr_address_delete; | |
2626 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2627 | zclient->redistribute_route_add = zebra_read_route; |
2628 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2629 | zclient->interface_up = bgp_interface_up; |
2630 | zclient->interface_down = bgp_interface_down; | |
d62a17ae | 2631 | zclient->nexthop_update = bgp_read_nexthop_update; |
2632 | zclient->import_check_update = bgp_read_import_check_update; | |
2633 | zclient->fec_update = bgp_read_fec_update; | |
50f74cf1 | 2634 | zclient->local_es_add = bgp_zebra_process_local_es; |
2635 | zclient->local_es_del = bgp_zebra_process_local_es; | |
d62a17ae | 2636 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
2637 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
2638 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2639 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2640 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2641 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2642 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2643 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2644 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
2645 | zclient->rule_notify_owner = rule_notify_owner; |
2646 | zclient->ipset_notify_owner = ipset_notify_owner; | |
2647 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 2648 | zclient->iptable_notify_owner = iptable_notify_owner; |
f533be73 | 2649 | zclient->instance = instance; |
718e3744 | 2650 | } |
bb86c601 | 2651 | |
d62a17ae | 2652 | void bgp_zebra_destroy(void) |
bb86c601 | 2653 | { |
d62a17ae | 2654 | if (zclient == NULL) |
2655 | return; | |
2656 | zclient_stop(zclient); | |
2657 | zclient_free(zclient); | |
2658 | zclient = NULL; | |
bb86c601 | 2659 | } |
afbb1c59 | 2660 | |
d62a17ae | 2661 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2662 | { |
d62a17ae | 2663 | return zclient_num_connects; |
afbb1c59 | 2664 | } |
30d50e6d PG |
2665 | |
2666 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, bool install) | |
2667 | { | |
2668 | struct stream *s; | |
2669 | ||
2670 | if (pbra->install_in_progress) | |
2671 | return; | |
f0936054 PG |
2672 | if (BGP_DEBUG(zebra, ZEBRA)) |
2673 | zlog_debug("%s: table %d fwmark %d %d", | |
2674 | __PRETTY_FUNCTION__, | |
2675 | pbra->table_id, pbra->fwmark, install); | |
30d50e6d PG |
2676 | s = zclient->obuf; |
2677 | stream_reset(s); | |
2678 | ||
2679 | zclient_create_header(s, | |
2680 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
2681 | VRF_DEFAULT); | |
2682 | stream_putl(s, 1); /* send one pbr action */ | |
2683 | ||
2684 | bgp_encode_pbr_rule_action(s, pbra); | |
2685 | ||
2686 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2687 | if (!zclient_send_message(zclient) && install) | |
2688 | pbra->install_in_progress = true; | |
2689 | } | |
2690 | ||
2691 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
2692 | { | |
2693 | struct stream *s; | |
2694 | ||
2695 | if (pbrim->install_in_progress) | |
2696 | return; | |
f0936054 | 2697 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2698 | zlog_debug("%s: name %s type %d %d, ID %u", |
f0936054 | 2699 | __PRETTY_FUNCTION__, |
88055124 PG |
2700 | pbrim->ipset_name, pbrim->type, |
2701 | install, pbrim->unique); | |
30d50e6d PG |
2702 | s = zclient->obuf; |
2703 | stream_reset(s); | |
2704 | ||
2705 | zclient_create_header(s, | |
2706 | install ? ZEBRA_IPSET_CREATE : | |
2707 | ZEBRA_IPSET_DESTROY, | |
2708 | VRF_DEFAULT); | |
2709 | ||
2710 | stream_putl(s, 1); /* send one pbr action */ | |
2711 | ||
2712 | bgp_encode_pbr_ipset_match(s, pbrim); | |
2713 | ||
2714 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2715 | if (!zclient_send_message(zclient) && install) | |
2716 | pbrim->install_in_progress = true; | |
2717 | } | |
2718 | ||
2719 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
2720 | bool install) | |
2721 | { | |
2722 | struct stream *s; | |
2723 | ||
2724 | if (pbrime->install_in_progress) | |
2725 | return; | |
f0936054 | 2726 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2727 | zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__, |
f0936054 | 2728 | pbrime->backpointer->ipset_name, |
88055124 | 2729 | pbrime->unique, install, pbrime->unique); |
30d50e6d PG |
2730 | s = zclient->obuf; |
2731 | stream_reset(s); | |
2732 | ||
2733 | zclient_create_header(s, | |
2734 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
2735 | ZEBRA_IPSET_ENTRY_DELETE, | |
2736 | VRF_DEFAULT); | |
2737 | ||
2738 | stream_putl(s, 1); /* send one pbr action */ | |
2739 | ||
2740 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
2741 | ||
2742 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2743 | if (!zclient_send_message(zclient) && install) | |
2744 | pbrime->install_in_progress = true; | |
2745 | } | |
c16a0a62 | 2746 | |
4762c213 PG |
2747 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s) |
2748 | { | |
2749 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2750 | struct bgp_pbr_interface_head *head; | |
2751 | struct bgp_pbr_interface *pbr_if; | |
2752 | struct interface *ifp; | |
2753 | ||
2754 | if (!bgp_pbr_cfg) | |
2755 | return; | |
2756 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2757 | ||
2758 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2759 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); | |
2760 | if (ifp) | |
2761 | stream_putl(s, ifp->ifindex); | |
2762 | } | |
2763 | } | |
2764 | ||
2765 | static int bgp_pbr_get_ifnumber(struct bgp *bgp) | |
2766 | { | |
2767 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2768 | struct bgp_pbr_interface_head *head; | |
2769 | struct bgp_pbr_interface *pbr_if; | |
2770 | int cnt = 0; | |
2771 | ||
2772 | if (!bgp_pbr_cfg) | |
2773 | return 0; | |
2774 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2775 | ||
2776 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2777 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) | |
2778 | cnt++; | |
2779 | } | |
2780 | return cnt; | |
2781 | } | |
2782 | ||
c16a0a62 PG |
2783 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
2784 | struct bgp_pbr_match *pbm, | |
2785 | bool install) | |
2786 | { | |
2787 | struct stream *s; | |
b5c40105 | 2788 | int ret = 0; |
4762c213 | 2789 | int nb_interface; |
c16a0a62 PG |
2790 | |
2791 | if (pbm->install_iptable_in_progress) | |
2792 | return; | |
f0936054 | 2793 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2794 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", |
f0936054 | 2795 | __PRETTY_FUNCTION__, pbm->ipset_name, |
88055124 PG |
2796 | pbm->type, pba->fwmark, install, |
2797 | pbm->unique2); | |
c16a0a62 PG |
2798 | s = zclient->obuf; |
2799 | stream_reset(s); | |
2800 | ||
2801 | zclient_create_header(s, | |
2802 | install ? ZEBRA_IPTABLE_ADD : | |
2803 | ZEBRA_IPTABLE_DELETE, | |
2804 | VRF_DEFAULT); | |
2805 | ||
2806 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
4762c213 PG |
2807 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp); |
2808 | stream_putl(s, nb_interface); | |
2809 | if (nb_interface) | |
2810 | bgp_encode_pbr_interface_list(pba->bgp, s); | |
c16a0a62 | 2811 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
2812 | ret = zclient_send_message(zclient); |
2813 | if (install) { | |
2814 | if (ret) | |
2815 | pba->refcnt++; | |
2816 | else | |
2817 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 2818 | } |
c16a0a62 | 2819 | } |
f7df1907 PG |
2820 | |
2821 | /* inject in table <table_id> a default route to: | |
2822 | * - if nexthop IP is present : to this nexthop | |
2823 | * - if vrf is different from local : to the matching VRF | |
2824 | */ | |
2825 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
2826 | afi_t afi, uint32_t table_id, bool announce) | |
2827 | { | |
2828 | struct zapi_nexthop *api_nh; | |
2829 | struct zapi_route api; | |
2830 | struct prefix p; | |
2831 | ||
2832 | if (!nh || nh->type != NEXTHOP_TYPE_IPV4 | |
2833 | || nh->vrf_id == VRF_UNKNOWN) | |
2834 | return; | |
2835 | memset(&p, 0, sizeof(struct prefix)); | |
2836 | /* default route */ | |
2837 | if (afi != AFI_IP) | |
2838 | return; | |
2839 | p.family = AF_INET; | |
2840 | memset(&api, 0, sizeof(api)); | |
2841 | api.vrf_id = bgp->vrf_id; | |
2842 | api.type = ZEBRA_ROUTE_BGP; | |
2843 | api.safi = SAFI_UNICAST; | |
2844 | api.prefix = p; | |
2845 | api.tableid = table_id; | |
2846 | api.nexthop_num = 1; | |
2847 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
2848 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
2849 | api_nh = &api.nexthops[0]; | |
2850 | ||
2851 | /* redirect IP */ | |
2852 | if (nh->gate.ipv4.s_addr) { | |
2853 | char buff[PREFIX_STRLEN]; | |
2854 | ||
2855 | api_nh->vrf_id = nh->vrf_id; | |
2856 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
2857 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
2858 | ||
2859 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
2860 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2861 | zlog_info("BGP: %s default route to %s table %d (redirect IP)", |
2862 | announce ? "adding" : "withdrawing", | |
f7df1907 PG |
2863 | buff, table_id); |
2864 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2865 | : ZEBRA_ROUTE_DELETE, | |
2866 | zclient, &api); | |
2867 | } else if (nh->vrf_id != bgp->vrf_id) { | |
2868 | struct vrf *vrf; | |
eb4244f8 | 2869 | struct interface *ifp; |
f7df1907 | 2870 | |
eb4244f8 | 2871 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
2872 | if (!vrf) |
2873 | return; | |
eb4244f8 PG |
2874 | /* create default route with interface <VRF> |
2875 | * with nexthop-vrf <VRF> | |
f7df1907 | 2876 | */ |
eb4244f8 PG |
2877 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
2878 | if (!ifp) | |
2879 | return; | |
2880 | api_nh->vrf_id = nh->vrf_id; | |
2881 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
2882 | api_nh->ifindex = ifp->ifindex; | |
2883 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2884 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
2885 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
2886 | vrf->name, table_id); |
2887 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2888 | : ZEBRA_ROUTE_DELETE, | |
2889 | zclient, &api); | |
f7df1907 PG |
2890 | return; |
2891 | } | |
2892 | } |