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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" |
6cfe5d15 | 39 | #include "pbr.h" |
718e3744 | 40 | |
41 | #include "bgpd/bgpd.h" | |
42 | #include "bgpd/bgp_route.h" | |
43 | #include "bgpd/bgp_attr.h" | |
44 | #include "bgpd/bgp_nexthop.h" | |
45 | #include "bgpd/bgp_zebra.h" | |
46 | #include "bgpd/bgp_fsm.h" | |
a39275d7 | 47 | #include "bgpd/bgp_debug.h" |
14454c9f | 48 | #include "bgpd/bgp_errors.h" |
8196f13d | 49 | #include "bgpd/bgp_mpath.h" |
fb018d25 | 50 | #include "bgpd/bgp_nexthop.h" |
ffd0c037 | 51 | #include "bgpd/bgp_nht.h" |
8c4f6381 | 52 | #include "bgpd/bgp_bfd.h" |
cd1964ff | 53 | #include "bgpd/bgp_label.h" |
65efcfce | 54 | #if ENABLE_BGP_VNC |
d62a17ae | 55 | #include "bgpd/rfapi/rfapi_backend.h" |
56 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 57 | #endif |
128ea8ab | 58 | #include "bgpd/bgp_evpn.h" |
ddb5b488 | 59 | #include "bgpd/bgp_mplsvpn.h" |
955bfd98 | 60 | #include "bgpd/bgp_labelpool.h" |
30d50e6d | 61 | #include "bgpd/bgp_pbr.h" |
0b9d9cd0 | 62 | #include "bgpd/bgp_evpn_private.h" |
6a69ac51 | 63 | #include "bgpd/bgp_mac.h" |
6b0655a2 | 64 | |
718e3744 | 65 | /* All information about zebra. */ |
228da428 | 66 | struct zclient *zclient = NULL; |
718e3744 | 67 | |
ad4cbda1 | 68 | /* Can we install into zebra? */ |
d62a17ae | 69 | static inline int bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 70 | { |
d62a17ae | 71 | if (zclient->sock <= 0) |
72 | return 0; | |
ad4cbda1 | 73 | |
bb4ef1ae DS |
74 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
75 | zlog_debug("%s: No zebra instance to talk to, not installing information", | |
76 | __PRETTY_FUNCTION__); | |
d62a17ae | 77 | return 0; |
bb4ef1ae | 78 | } |
ad4cbda1 | 79 | |
d62a17ae | 80 | return 1; |
ad4cbda1 | 81 | } |
82 | ||
afbb1c59 LB |
83 | int zclient_num_connects; |
84 | ||
18a6dce6 | 85 | /* Router-id update message from zebra. */ |
d62a17ae | 86 | static int bgp_router_id_update(int command, struct zclient *zclient, |
87 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 88 | { |
d62a17ae | 89 | struct prefix router_id; |
718e3744 | 90 | |
d62a17ae | 91 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 92 | |
d62a17ae | 93 | if (BGP_DEBUG(zebra, ZEBRA)) { |
94 | char buf[PREFIX2STR_BUFFER]; | |
95 | prefix2str(&router_id, buf, sizeof(buf)); | |
96 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
97 | } | |
a39275d7 | 98 | |
d62a17ae | 99 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
100 | return 0; | |
718e3744 | 101 | } |
102 | ||
fb018d25 | 103 | /* Nexthop update message from zebra. */ |
d62a17ae | 104 | static int bgp_read_nexthop_update(int command, struct zclient *zclient, |
105 | zebra_size_t length, vrf_id_t vrf_id) | |
fb018d25 | 106 | { |
d62a17ae | 107 | bgp_parse_nexthop_update(command, vrf_id); |
108 | return 0; | |
078430f6 DS |
109 | } |
110 | ||
d62a17ae | 111 | static int bgp_read_import_check_update(int command, struct zclient *zclient, |
112 | zebra_size_t length, vrf_id_t vrf_id) | |
078430f6 | 113 | { |
d62a17ae | 114 | bgp_parse_nexthop_update(command, vrf_id); |
115 | return 0; | |
fb018d25 DS |
116 | } |
117 | ||
4a04e5f7 | 118 | /* Set or clear interface on which unnumbered neighbor is configured. This |
119 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
120 | * interface. | |
121 | */ | |
d62a17ae | 122 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
123 | struct interface *upd_ifp) | |
4a04e5f7 | 124 | { |
d62a17ae | 125 | struct listnode *node, *nnode; |
126 | struct peer *peer; | |
127 | ||
128 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
129 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
130 | if (upd_ifp) { | |
131 | peer->ifp = upd_ifp; | |
132 | bgp_zebra_initiate_radv(bgp, peer); | |
133 | } else { | |
134 | bgp_zebra_terminate_radv(bgp, peer); | |
135 | peer->ifp = upd_ifp; | |
136 | } | |
137 | } | |
138 | } | |
4a04e5f7 | 139 | } |
140 | ||
d62a17ae | 141 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
142 | zebra_size_t length) | |
cd1964ff | 143 | { |
d62a17ae | 144 | bgp_parse_fec_update(); |
145 | return 0; | |
cd1964ff DS |
146 | } |
147 | ||
d62a17ae | 148 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 149 | { |
d62a17ae | 150 | struct listnode *node, *nnode; |
151 | struct peer *peer; | |
152 | ||
153 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
154 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
155 | && peer->status != Established) { | |
156 | if (peer_active(peer)) | |
157 | BGP_EVENT_ADD(peer, BGP_Stop); | |
158 | BGP_EVENT_ADD(peer, BGP_Start); | |
159 | } | |
160 | } | |
a80beece DS |
161 | } |
162 | ||
d62a17ae | 163 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 164 | { |
d62a17ae | 165 | struct listnode *node; |
166 | struct connected *connected; | |
167 | struct interface *ifp; | |
168 | struct prefix *p; | |
169 | ||
170 | /* Kick-off the FSM for any relevant peers only if there is a | |
171 | * valid local address on the interface. | |
172 | */ | |
173 | ifp = ifc->ifp; | |
174 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
175 | p = connected->address; | |
176 | if (p->family == AF_INET6 | |
177 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
178 | break; | |
179 | } | |
180 | if (!connected) | |
181 | return; | |
182 | ||
183 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
184 | } |
185 | ||
d62a17ae | 186 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
187 | int del) | |
a80beece | 188 | { |
d62a17ae | 189 | struct listnode *node, *nnode; |
190 | struct peer *peer; | |
191 | struct interface *ifp; | |
192 | ||
193 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
194 | if (peer->conf_if | |
195 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
196 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
197 | BGP_EVENT_ADD(peer, BGP_Stop); | |
198 | } | |
199 | } | |
200 | /* Free neighbor also, if we're asked to. */ | |
201 | if (del) { | |
202 | ifp = ifc->ifp; | |
203 | listnode_delete(ifp->nbr_connected, ifc); | |
204 | nbr_connected_free(ifc); | |
205 | } | |
a80beece DS |
206 | } |
207 | ||
718e3744 | 208 | /* Inteface addition message from zebra. */ |
d62a17ae | 209 | static int bgp_interface_add(int command, struct zclient *zclient, |
210 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 211 | { |
d62a17ae | 212 | struct interface *ifp; |
213 | struct bgp *bgp; | |
718e3744 | 214 | |
d62a17ae | 215 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
216 | if (!ifp) // unexpected | |
217 | return 0; | |
718e3744 | 218 | |
d62a17ae | 219 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
220 | zlog_debug("Rx Intf add VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 221 | |
d62a17ae | 222 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
223 | if (!bgp) | |
224 | return 0; | |
4a04e5f7 | 225 | |
6a69ac51 DS |
226 | bgp_mac_add_mac_entry(ifp); |
227 | ||
d62a17ae | 228 | bgp_update_interface_nbrs(bgp, ifp, ifp); |
229 | return 0; | |
718e3744 | 230 | } |
231 | ||
d62a17ae | 232 | static int bgp_interface_delete(int command, struct zclient *zclient, |
233 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 234 | { |
d62a17ae | 235 | struct stream *s; |
236 | struct interface *ifp; | |
237 | struct bgp *bgp; | |
718e3744 | 238 | |
2f9123e0 | 239 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 240 | |
d62a17ae | 241 | s = zclient->ibuf; |
242 | ifp = zebra_interface_state_read(s, vrf_id); | |
243 | if (!ifp) /* This may happen if we've just unregistered for a VRF. */ | |
244 | return 0; | |
a4499b83 | 245 | |
d62a17ae | 246 | if (BGP_DEBUG(zebra, ZEBRA)) |
247 | zlog_debug("Rx Intf del VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 248 | |
85751d1d DS |
249 | if (bgp) |
250 | bgp_update_interface_nbrs(bgp, ifp, NULL); | |
64745052 | 251 | |
6a69ac51 DS |
252 | bgp_mac_del_mac_entry(ifp); |
253 | ||
ff880b78 | 254 | if_set_index(ifp, IFINDEX_INTERNAL); |
d62a17ae | 255 | return 0; |
718e3744 | 256 | } |
257 | ||
d62a17ae | 258 | static int bgp_interface_up(int command, struct zclient *zclient, |
259 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 260 | { |
d62a17ae | 261 | struct stream *s; |
262 | struct interface *ifp; | |
263 | struct connected *c; | |
264 | struct nbr_connected *nc; | |
265 | struct listnode *node, *nnode; | |
266 | struct bgp *bgp; | |
6aeb9e78 | 267 | |
2f9123e0 | 268 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 269 | |
d62a17ae | 270 | s = zclient->ibuf; |
271 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 272 | |
d62a17ae | 273 | if (!ifp) |
274 | return 0; | |
718e3744 | 275 | |
6a69ac51 DS |
276 | bgp_mac_add_mac_entry(ifp); |
277 | ||
d62a17ae | 278 | if (BGP_DEBUG(zebra, ZEBRA)) |
279 | zlog_debug("Rx Intf up VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 280 | |
85751d1d DS |
281 | if (!bgp) |
282 | return 0; | |
283 | ||
d62a17ae | 284 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
285 | bgp_connected_add(bgp, c); | |
718e3744 | 286 | |
d62a17ae | 287 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
288 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 289 | |
d62a17ae | 290 | return 0; |
718e3744 | 291 | } |
292 | ||
d62a17ae | 293 | static int bgp_interface_down(int command, struct zclient *zclient, |
294 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 295 | { |
d62a17ae | 296 | struct stream *s; |
297 | struct interface *ifp; | |
298 | struct connected *c; | |
299 | struct nbr_connected *nc; | |
300 | struct listnode *node, *nnode; | |
301 | struct bgp *bgp; | |
c19fe3c7 | 302 | struct peer *peer; |
6aeb9e78 | 303 | |
2f9123e0 | 304 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 305 | |
d62a17ae | 306 | s = zclient->ibuf; |
307 | ifp = zebra_interface_state_read(s, vrf_id); | |
308 | if (!ifp) | |
309 | return 0; | |
718e3744 | 310 | |
6a69ac51 DS |
311 | bgp_mac_del_mac_entry(ifp); |
312 | ||
d62a17ae | 313 | if (BGP_DEBUG(zebra, ZEBRA)) |
314 | zlog_debug("Rx Intf down VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 315 | |
85751d1d DS |
316 | if (!bgp) |
317 | return 0; | |
318 | ||
d62a17ae | 319 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
320 | bgp_connected_delete(bgp, c); | |
718e3744 | 321 | |
d62a17ae | 322 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
323 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 324 | |
d62a17ae | 325 | /* Fast external-failover */ |
c19fe3c7 | 326 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 327 | |
d62a17ae | 328 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 329 | #if defined(HAVE_CUMULUS) |
d62a17ae | 330 | /* Take down directly connected EBGP peers as well as |
331 | * 1-hop BFD | |
332 | * tracked (directly connected) IBGP peers. | |
333 | */ | |
334 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1) | |
335 | && (!peer->bfd_info | |
336 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 337 | #else |
d62a17ae | 338 | /* Take down directly connected EBGP peers */ |
339 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
8c4f6381 | 340 | #endif |
d62a17ae | 341 | continue; |
718e3744 | 342 | |
d62a17ae | 343 | if (ifp == peer->nexthop.ifp) { |
344 | BGP_EVENT_ADD(peer, BGP_Stop); | |
345 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
346 | } | |
347 | } | |
348 | } | |
718e3744 | 349 | |
d62a17ae | 350 | return 0; |
718e3744 | 351 | } |
352 | ||
d62a17ae | 353 | static int bgp_interface_address_add(int command, struct zclient *zclient, |
354 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 355 | { |
d62a17ae | 356 | struct connected *ifc; |
2f9123e0 DS |
357 | struct bgp *bgp; |
358 | ||
359 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 360 | |
361 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); | |
362 | ||
363 | if (ifc == NULL) | |
364 | return 0; | |
365 | ||
366 | if (bgp_debug_zebra(ifc->address)) { | |
367 | char buf[PREFIX2STR_BUFFER]; | |
368 | prefix2str(ifc->address, buf, sizeof(buf)); | |
369 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
370 | ifc->ifp->name, buf); | |
371 | } | |
372 | ||
85751d1d DS |
373 | if (!bgp) |
374 | return 0; | |
375 | ||
d62a17ae | 376 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 377 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 378 | |
d62a17ae | 379 | /* If we have learnt of any neighbors on this interface, |
380 | * check to kick off any BGP interface-based neighbors, | |
381 | * but only if this is a link-local address. | |
382 | */ | |
383 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
384 | && !list_isempty(ifc->ifp->nbr_connected)) | |
385 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
386 | } | |
387 | ||
388 | return 0; | |
718e3744 | 389 | } |
390 | ||
d62a17ae | 391 | static int bgp_interface_address_delete(int command, struct zclient *zclient, |
392 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 393 | { |
d62a17ae | 394 | struct connected *ifc; |
395 | struct bgp *bgp; | |
6aeb9e78 | 396 | |
2f9123e0 | 397 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 398 | |
d62a17ae | 399 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); |
718e3744 | 400 | |
d62a17ae | 401 | if (ifc == NULL) |
402 | return 0; | |
718e3744 | 403 | |
d62a17ae | 404 | if (bgp_debug_zebra(ifc->address)) { |
405 | char buf[PREFIX2STR_BUFFER]; | |
406 | prefix2str(ifc->address, buf, sizeof(buf)); | |
407 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
408 | ifc->ifp->name, buf); | |
409 | } | |
a39275d7 | 410 | |
85751d1d | 411 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 412 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 413 | } |
718e3744 | 414 | |
d62a17ae | 415 | connected_free(ifc); |
718e3744 | 416 | |
d62a17ae | 417 | return 0; |
718e3744 | 418 | } |
419 | ||
d62a17ae | 420 | static int bgp_interface_nbr_address_add(int command, struct zclient *zclient, |
421 | zebra_size_t length, vrf_id_t vrf_id) | |
a80beece | 422 | { |
d62a17ae | 423 | struct nbr_connected *ifc = NULL; |
424 | struct bgp *bgp; | |
425 | ||
426 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); | |
427 | ||
428 | if (ifc == NULL) | |
429 | return 0; | |
430 | ||
431 | if (bgp_debug_zebra(ifc->address)) { | |
432 | char buf[PREFIX2STR_BUFFER]; | |
433 | prefix2str(ifc->address, buf, sizeof(buf)); | |
434 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
435 | ifc->ifp->name, buf); | |
436 | } | |
437 | ||
438 | if (if_is_operative(ifc->ifp)) { | |
439 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
440 | if (bgp) | |
441 | bgp_nbr_connected_add(bgp, ifc); | |
442 | } | |
443 | ||
444 | return 0; | |
a80beece DS |
445 | } |
446 | ||
d62a17ae | 447 | static int bgp_interface_nbr_address_delete(int command, |
448 | struct zclient *zclient, | |
449 | zebra_size_t length, | |
450 | vrf_id_t vrf_id) | |
a80beece | 451 | { |
d62a17ae | 452 | struct nbr_connected *ifc = NULL; |
453 | struct bgp *bgp; | |
6aeb9e78 | 454 | |
d62a17ae | 455 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); |
a80beece | 456 | |
d62a17ae | 457 | if (ifc == NULL) |
458 | return 0; | |
a80beece | 459 | |
d62a17ae | 460 | if (bgp_debug_zebra(ifc->address)) { |
461 | char buf[PREFIX2STR_BUFFER]; | |
462 | prefix2str(ifc->address, buf, sizeof(buf)); | |
463 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
464 | ifc->ifp->name, buf); | |
465 | } | |
a80beece | 466 | |
d62a17ae | 467 | if (if_is_operative(ifc->ifp)) { |
468 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
469 | if (bgp) | |
470 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
471 | } | |
a80beece | 472 | |
d62a17ae | 473 | nbr_connected_free(ifc); |
a80beece | 474 | |
d62a17ae | 475 | return 0; |
a80beece DS |
476 | } |
477 | ||
bfcd43b2 | 478 | /* VRF update for an interface. */ |
d62a17ae | 479 | static int bgp_interface_vrf_update(int command, struct zclient *zclient, |
480 | zebra_size_t length, vrf_id_t vrf_id) | |
bfcd43b2 | 481 | { |
d62a17ae | 482 | struct interface *ifp; |
483 | vrf_id_t new_vrf_id; | |
484 | struct connected *c; | |
485 | struct nbr_connected *nc; | |
486 | struct listnode *node, *nnode; | |
487 | struct bgp *bgp; | |
c19fe3c7 | 488 | struct peer *peer; |
bfcd43b2 | 489 | |
d62a17ae | 490 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
491 | &new_vrf_id); | |
492 | if (!ifp) | |
493 | return 0; | |
bfcd43b2 | 494 | |
d62a17ae | 495 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
496 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
497 | ifp->name, new_vrf_id); | |
bfcd43b2 | 498 | |
d62a17ae | 499 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 500 | |
85751d1d DS |
501 | if (bgp) { |
502 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
503 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 504 | |
85751d1d DS |
505 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
506 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 507 | |
85751d1d DS |
508 | /* Fast external-failover */ |
509 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
510 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
511 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
512 | continue; | |
bfcd43b2 | 513 | |
85751d1d DS |
514 | if (ifp == peer->nexthop.ifp) |
515 | BGP_EVENT_ADD(peer, BGP_Stop); | |
516 | } | |
d62a17ae | 517 | } |
518 | } | |
bfcd43b2 | 519 | |
d62a17ae | 520 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 521 | |
d62a17ae | 522 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
523 | if (!bgp) | |
524 | return 0; | |
bfcd43b2 | 525 | |
d62a17ae | 526 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
527 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 528 | |
d62a17ae | 529 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
530 | bgp_nbr_connected_add(bgp, nc); | |
531 | return 0; | |
bfcd43b2 | 532 | } |
533 | ||
718e3744 | 534 | /* Zebra route add and delete treatment. */ |
74489921 RW |
535 | static int zebra_read_route(int command, struct zclient *zclient, |
536 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 537 | { |
9de1f7ff | 538 | enum nexthop_types_t nhtype; |
74489921 RW |
539 | struct zapi_route api; |
540 | union g_addr nexthop; | |
9de1f7ff | 541 | ifindex_t ifindex; |
74489921 | 542 | int add, i; |
d62a17ae | 543 | struct bgp *bgp; |
544 | ||
545 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
546 | if (!bgp) | |
547 | return 0; | |
548 | ||
74489921 RW |
549 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
550 | return -1; | |
d62a17ae | 551 | |
74489921 RW |
552 | /* we completely ignore srcdest routes for now. */ |
553 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
554 | return 0; | |
d62a17ae | 555 | |
74489921 RW |
556 | /* ignore link-local address. */ |
557 | if (api.prefix.family == AF_INET6 | |
558 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
559 | return 0; | |
d62a17ae | 560 | |
74489921 RW |
561 | nexthop = api.nexthops[0].gate; |
562 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 563 | nhtype = api.nexthops[0].type; |
d62a17ae | 564 | |
74489921 RW |
565 | add = (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
566 | if (add) { | |
d62a17ae | 567 | /* |
568 | * The ADD message is actually an UPDATE and there is no | |
569 | * explicit DEL | |
570 | * for a prior redistributed route, if any. So, perform an | |
571 | * implicit | |
572 | * DEL processing for the same redistributed route from any | |
573 | * other | |
574 | * source type. | |
575 | */ | |
576 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
577 | if (i != api.type) | |
74489921 | 578 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 579 | api.instance); |
580 | } | |
581 | ||
582 | /* Now perform the add/update. */ | |
74489921 | 583 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
584 | nhtype, api.metric, api.type, api.instance, |
585 | api.tag); | |
d62a17ae | 586 | } else { |
74489921 RW |
587 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
588 | api.instance); | |
a39275d7 | 589 | } |
d62a17ae | 590 | |
74489921 RW |
591 | if (bgp_debug_zebra(&api.prefix)) { |
592 | char buf[2][PREFIX_STRLEN]; | |
593 | ||
594 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
77e62f2b | 595 | if (add) { |
596 | inet_ntop(api.prefix.family, &nexthop, buf[1], | |
597 | sizeof(buf[1])); | |
598 | zlog_debug( | |
599 | "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI, | |
600 | vrf_id, zebra_route_string(api.type), | |
601 | api.instance, buf[0], buf[1], nhtype, | |
602 | ifindex, api.metric, api.tag); | |
603 | } else { | |
604 | zlog_debug( | |
605 | "Rx route DEL VRF %u %s[%d] %s", | |
606 | vrf_id, zebra_route_string(api.type), | |
607 | api.instance, buf[0]); | |
608 | } | |
d62a17ae | 609 | } |
610 | ||
611 | return 0; | |
718e3744 | 612 | } |
6b0655a2 | 613 | |
d62a17ae | 614 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 615 | { |
f4e14fdb | 616 | struct vrf *vrf; |
d62a17ae | 617 | struct listnode *cnode; |
618 | struct interface *ifp; | |
619 | struct connected *connected; | |
620 | struct prefix_ipv4 p; | |
621 | struct prefix *cp; | |
622 | ||
f4e14fdb RW |
623 | vrf = vrf_lookup_by_id(vrf_id); |
624 | if (!vrf) | |
625 | return NULL; | |
626 | ||
d62a17ae | 627 | p.family = AF_INET; |
628 | p.prefix = *addr; | |
629 | p.prefixlen = IPV4_MAX_BITLEN; | |
630 | ||
451fda4f | 631 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 632 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
633 | cp = connected->address; | |
634 | ||
635 | if (cp->family == AF_INET) | |
636 | if (prefix_match(cp, (struct prefix *)&p)) | |
637 | return ifp; | |
638 | } | |
718e3744 | 639 | } |
d62a17ae | 640 | return NULL; |
718e3744 | 641 | } |
642 | ||
d62a17ae | 643 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 644 | { |
f4e14fdb | 645 | struct vrf *vrf; |
d62a17ae | 646 | struct listnode *cnode; |
647 | struct interface *ifp; | |
648 | struct connected *connected; | |
649 | struct prefix *cp; | |
650 | ||
f4e14fdb RW |
651 | vrf = vrf_lookup_by_id(vrf_id); |
652 | if (!vrf) | |
653 | return NULL; | |
654 | ||
451fda4f | 655 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 656 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
657 | cp = connected->address; | |
658 | ||
659 | if (cp->family == AF_INET) | |
660 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
661 | return ifp; | |
662 | } | |
718e3744 | 663 | } |
d62a17ae | 664 | return NULL; |
718e3744 | 665 | } |
666 | ||
d62a17ae | 667 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
668 | vrf_id_t vrf_id) | |
718e3744 | 669 | { |
f4e14fdb | 670 | struct vrf *vrf; |
d62a17ae | 671 | struct listnode *cnode; |
672 | struct interface *ifp; | |
673 | struct connected *connected; | |
674 | struct prefix_ipv6 p; | |
675 | struct prefix *cp; | |
676 | ||
f4e14fdb RW |
677 | vrf = vrf_lookup_by_id(vrf_id); |
678 | if (!vrf) | |
679 | return NULL; | |
680 | ||
d62a17ae | 681 | p.family = AF_INET6; |
682 | p.prefix = *addr; | |
683 | p.prefixlen = IPV6_MAX_BITLEN; | |
684 | ||
451fda4f | 685 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 686 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
687 | cp = connected->address; | |
688 | ||
689 | if (cp->family == AF_INET6) | |
690 | if (prefix_match(cp, (struct prefix *)&p)) { | |
691 | if (IN6_IS_ADDR_LINKLOCAL( | |
692 | &cp->u.prefix6)) { | |
693 | if (ifindex == ifp->ifindex) | |
694 | return ifp; | |
695 | } else | |
696 | return ifp; | |
697 | } | |
698 | } | |
718e3744 | 699 | } |
d62a17ae | 700 | return NULL; |
718e3744 | 701 | } |
702 | ||
d62a17ae | 703 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
704 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 705 | { |
f4e14fdb | 706 | struct vrf *vrf; |
d62a17ae | 707 | struct listnode *cnode; |
708 | struct interface *ifp; | |
709 | struct connected *connected; | |
710 | struct prefix *cp; | |
711 | ||
f4e14fdb RW |
712 | vrf = vrf_lookup_by_id(vrf_id); |
713 | if (!vrf) | |
714 | return NULL; | |
715 | ||
451fda4f | 716 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 717 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
718 | cp = connected->address; | |
719 | ||
720 | if (cp->family == AF_INET6) | |
721 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
722 | if (IN6_IS_ADDR_LINKLOCAL( | |
723 | &cp->u.prefix6)) { | |
724 | if (ifindex == ifp->ifindex) | |
725 | return ifp; | |
726 | } else | |
727 | return ifp; | |
728 | } | |
729 | } | |
718e3744 | 730 | } |
d62a17ae | 731 | return NULL; |
718e3744 | 732 | } |
733 | ||
d62a17ae | 734 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 735 | { |
d62a17ae | 736 | struct listnode *cnode; |
737 | struct connected *connected; | |
738 | struct prefix *cp; | |
739 | ||
740 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
741 | cp = connected->address; | |
742 | ||
743 | if (cp->family == AF_INET6) | |
744 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
745 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
746 | return 1; | |
747 | } | |
748 | } | |
749 | return 0; | |
718e3744 | 750 | } |
751 | ||
d62a17ae | 752 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 753 | { |
d62a17ae | 754 | struct listnode *cnode; |
755 | struct connected *connected; | |
756 | struct prefix *cp; | |
757 | ||
758 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
759 | cp = connected->address; | |
760 | ||
761 | if (cp->family == AF_INET6) | |
762 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
763 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
764 | return 1; | |
765 | } | |
766 | } | |
767 | return 0; | |
718e3744 | 768 | } |
718e3744 | 769 | |
d62a17ae | 770 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 771 | { |
d62a17ae | 772 | struct listnode *cnode; |
773 | struct connected *connected; | |
774 | struct prefix *cp; | |
775 | ||
776 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
777 | cp = connected->address; | |
778 | if ((cp->family == AF_INET) | |
779 | && !ipv4_martian(&(cp->u.prefix4))) { | |
780 | *addr = cp->u.prefix4; | |
781 | return 1; | |
782 | } | |
783 | } | |
784 | return 0; | |
6ee06fa9 PM |
785 | } |
786 | ||
17cdd31e DS |
787 | |
788 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
789 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 790 | { |
d62a17ae | 791 | int ret = 0; |
792 | struct interface *ifp = NULL; | |
793 | ||
794 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
795 | ||
796 | if (!local) | |
17cdd31e | 797 | return false; |
d62a17ae | 798 | if (!remote) |
17cdd31e | 799 | return false; |
d62a17ae | 800 | |
801 | if (local->sa.sa_family == AF_INET) { | |
802 | nexthop->v4 = local->sin.sin_addr; | |
803 | if (peer->update_if) | |
804 | ifp = if_lookup_by_name(peer->update_if, | |
805 | peer->bgp->vrf_id); | |
806 | else | |
807 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
808 | peer->bgp->vrf_id); | |
718e3744 | 809 | } |
d62a17ae | 810 | if (local->sa.sa_family == AF_INET6) { |
811 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
812 | if (peer->conf_if || peer->ifname) | |
813 | ifp = if_lookup_by_name(peer->conf_if | |
814 | ? peer->conf_if | |
815 | : peer->ifname, | |
816 | peer->bgp->vrf_id); | |
817 | } else if (peer->update_if) | |
818 | ifp = if_lookup_by_name(peer->update_if, | |
819 | peer->bgp->vrf_id); | |
820 | else | |
821 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
822 | local->sin6.sin6_scope_id, | |
823 | peer->bgp->vrf_id); | |
718e3744 | 824 | } |
d62a17ae | 825 | |
17cdd31e DS |
826 | if (!ifp) { |
827 | /* | |
828 | * BGP views do not currently get proper data | |
829 | * from zebra( when attached ) to be able to | |
830 | * properly resolve nexthops, so give this | |
831 | * instance type a pass. | |
832 | */ | |
833 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
834 | return true; | |
835 | /* | |
836 | * If we have no interface data but we have established | |
837 | * some connection w/ zebra than something has gone | |
838 | * terribly terribly wrong here, so say this failed | |
839 | * If we do not any zebra connection then not | |
840 | * having a ifp pointer is ok. | |
841 | */ | |
842 | return zclient_num_connects ? false : true; | |
843 | } | |
d62a17ae | 844 | |
845 | nexthop->ifp = ifp; | |
846 | ||
847 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
848 | if (local->sa.sa_family == AF_INET) { | |
849 | /* IPv6 nexthop*/ | |
850 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
851 | ||
852 | if (!ret) { | |
853 | /* There is no global nexthop. Use link-local address as | |
854 | * both the | |
855 | * global and link-local nexthop. In this scenario, the | |
856 | * expectation | |
857 | * for interop is that the network admin would use a | |
858 | * route-map to | |
859 | * specify the global IPv6 nexthop. | |
860 | */ | |
861 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
862 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
863 | IPV6_MAX_BYTELEN); | |
864 | } else | |
865 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
866 | ||
867 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
868 | peer->shared_network = 1; | |
869 | else | |
870 | peer->shared_network = 0; | |
718e3744 | 871 | } |
718e3744 | 872 | |
d62a17ae | 873 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
874 | if (local->sa.sa_family == AF_INET6) { | |
875 | struct interface *direct = NULL; | |
876 | ||
877 | /* IPv4 nexthop. */ | |
878 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
879 | if (!ret && peer->local_id.s_addr) | |
880 | nexthop->v4 = peer->local_id; | |
881 | ||
882 | /* Global address*/ | |
883 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
884 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
885 | IPV6_MAX_BYTELEN); | |
886 | ||
887 | /* If directory connected set link-local address. */ | |
888 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
889 | remote->sin6.sin6_scope_id, | |
890 | peer->bgp->vrf_id); | |
891 | if (direct) | |
892 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
893 | } else | |
894 | /* Link-local address. */ | |
895 | { | |
896 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
897 | ||
898 | /* If there is no global address. Set link-local | |
899 | address as | |
900 | global. I know this break RFC specification... */ | |
901 | /* In this scenario, the expectation for interop is that | |
902 | * the | |
903 | * network admin would use a route-map to specify the | |
904 | * global | |
905 | * IPv6 nexthop. | |
906 | */ | |
907 | if (!ret) | |
908 | memcpy(&nexthop->v6_global, | |
909 | &local->sin6.sin6_addr, | |
910 | IPV6_MAX_BYTELEN); | |
911 | /* Always set the link-local address */ | |
912 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
913 | IPV6_MAX_BYTELEN); | |
914 | } | |
915 | ||
916 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
917 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
918 | remote->sin6.sin6_scope_id, | |
919 | peer->bgp->vrf_id)) | |
920 | peer->shared_network = 1; | |
921 | else | |
922 | peer->shared_network = 0; | |
923 | } | |
718e3744 | 924 | |
d62a17ae | 925 | /* KAME stack specific treatment. */ |
718e3744 | 926 | #ifdef KAME |
d62a17ae | 927 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
928 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
929 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
930 | } | |
931 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
932 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
933 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
934 | } | |
718e3744 | 935 | #endif /* KAME */ |
e33a4880 | 936 | |
d62a17ae | 937 | /* If we have identified the local interface, there is no error for now. |
938 | */ | |
17cdd31e | 939 | return true; |
718e3744 | 940 | } |
941 | ||
18ee8310 | 942 | static struct in6_addr * |
40381db7 | 943 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 944 | { |
d62a17ae | 945 | struct in6_addr *nexthop = NULL; |
946 | ||
947 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
948 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
949 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 950 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 951 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 952 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 953 | } |
d62a17ae | 954 | |
955 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
956 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
957 | || path->attr->mp_nexthop_len | |
958 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 959 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
960 | if (path->attr->mp_nexthop_prefer_global) { |
961 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 962 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 963 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 964 | } else { |
d62a17ae | 965 | /* Workaround for Cisco's nexthop bug. */ |
966 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 DS |
967 | &path->attr->mp_nexthop_global) |
968 | && path->peer->su_remote->sa.sa_family | |
59a0f1cb | 969 | == AF_INET6) { |
d62a17ae | 970 | nexthop = |
40381db7 | 971 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 972 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 973 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 974 | ->ifindex; |
77e62f2b | 975 | } else { |
40381db7 | 976 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 977 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 978 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 979 | } |
d62a17ae | 980 | } |
981 | } | |
982 | ||
983 | return nexthop; | |
73ac8160 DS |
984 | } |
985 | ||
d62a17ae | 986 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
40381db7 | 987 | struct bgp_path_info *path) |
73ac8160 | 988 | { |
b4cb15c6 DL |
989 | route_map_result_t ret; |
990 | ||
40381db7 DS |
991 | ret = route_map_apply(map, p, RMAP_BGP, path); |
992 | bgp_attr_flush(path->attr); | |
b4cb15c6 DL |
993 | |
994 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 995 | return 1; |
996 | ||
997 | if (bgp_debug_zebra(p)) { | |
998 | if (p->family == AF_INET) { | |
999 | char buf[2][INET_ADDRSTRLEN]; | |
1000 | zlog_debug( | |
1001 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
1002 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
1003 | sizeof(buf[0])), | |
1004 | p->prefixlen, | |
40381db7 | 1005 | inet_ntop(AF_INET, &path->attr->nexthop, buf[1], |
d62a17ae | 1006 | sizeof(buf[1]))); |
1007 | } | |
1008 | if (p->family == AF_INET6) { | |
1009 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 1010 | ifindex_t ifindex; |
1011 | struct in6_addr *nexthop; | |
1012 | ||
40381db7 | 1013 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 1014 | zlog_debug( |
1015 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
1016 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
1017 | sizeof(buf[0])), | |
1018 | p->prefixlen, | |
77e62f2b | 1019 | inet_ntop(AF_INET6, nexthop, |
d62a17ae | 1020 | buf[1], sizeof(buf[1]))); |
1021 | } | |
1022 | } | |
1023 | return 0; | |
73ac8160 DS |
1024 | } |
1025 | ||
b98f7728 PG |
1026 | static struct thread *bgp_tm_thread_connect; |
1027 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1028 | static bool bgp_tm_chunk_obtained; |
1029 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1030 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1031 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
1032 | |
1033 | static int bgp_zebra_tm_connect(struct thread *t) | |
1034 | { | |
1035 | struct zclient *zclient; | |
1036 | int delay = 10, ret = 0; | |
1037 | ||
1038 | zclient = THREAD_ARG(t); | |
1039 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1040 | delay = 60; | |
1041 | else { | |
1042 | bgp_tm_status_connected = false; | |
1043 | ret = tm_table_manager_connect(zclient); | |
1044 | } | |
1045 | if (ret < 0) { | |
b7cd3069 | 1046 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1047 | bgp_tm_status_connected = false; |
1048 | } else { | |
1049 | if (!bgp_tm_status_connected) | |
1050 | zlog_debug("Connecting to table manager. Success"); | |
1051 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1052 | if (!bgp_tm_chunk_obtained) { |
1053 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1054 | &bgp_tm_min, | |
6818e7e5 | 1055 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1056 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1057 | /* parse non installed entries */ |
1058 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1059 | } | |
31c28cd7 | 1060 | } |
b98f7728 PG |
1061 | } |
1062 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1063 | &bgp_tm_thread_connect); | |
1064 | return 0; | |
1065 | } | |
1066 | ||
6818e7e5 PG |
1067 | bool bgp_zebra_tm_chunk_obtained(void) |
1068 | { | |
1069 | return bgp_tm_chunk_obtained; | |
1070 | } | |
1071 | ||
31c28cd7 PG |
1072 | uint32_t bgp_zebra_tm_get_id(void) |
1073 | { | |
1074 | static int table_id; | |
1075 | ||
1076 | if (!bgp_tm_chunk_obtained) | |
1077 | return ++table_id; | |
1078 | return bgp_tm_min++; | |
1079 | } | |
1080 | ||
6818e7e5 | 1081 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1082 | { |
1083 | int delay = 1; | |
1084 | ||
1085 | /* if already set, do nothing | |
1086 | */ | |
1087 | if (bgp_tm_thread_connect != NULL) | |
1088 | return; | |
1089 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1090 | bgp_tm_chunk_obtained = false; |
1091 | bgp_tm_min = bgp_tm_max = 0; | |
1092 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1093 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1094 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1095 | &bgp_tm_thread_connect); | |
1096 | } | |
1097 | ||
1098 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1099 | uint32_t *start, uint32_t *end) | |
1100 | { | |
1101 | int ret; | |
1102 | ||
1103 | if (!bgp_tm_status_connected) | |
1104 | return -1; | |
1105 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1106 | if (ret < 0) { | |
e50f7cfd | 1107 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1108 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1109 | return -1; |
1110 | } | |
1111 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1112 | chunk_size, *start, *end); | |
1113 | return 0; | |
1114 | } | |
1115 | ||
77e62f2b | 1116 | static int update_ipv4nh_for_route_install(int nh_othervrf, |
e1e71450 | 1117 | struct bgp *nh_bgp, |
77e62f2b | 1118 | struct in_addr *nexthop, |
1119 | struct attr *attr, | |
1120 | bool is_evpn, | |
1121 | struct zapi_nexthop *api_nh) | |
1122 | { | |
1123 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1124 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1125 | |
1126 | /* Need to set fields appropriately for EVPN routes imported into | |
1127 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1128 | * connected routes leaked into a VRF. | |
1129 | */ | |
e1e71450 | 1130 | if (is_evpn) { |
77e62f2b | 1131 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
2b83602b | 1132 | api_nh->onlink = true; |
e1e71450 | 1133 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1134 | } else if (nh_othervrf && | |
77e62f2b | 1135 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
1136 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1137 | api_nh->ifindex = attr->nh_ifindex; | |
1138 | } else | |
1139 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1140 | ||
1141 | return 1; | |
1142 | } | |
1143 | ||
4b7e6066 | 1144 | static int |
e1e71450 | 1145 | update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1146 | struct in6_addr *nexthop, | |
40381db7 DS |
1147 | ifindex_t ifindex, struct bgp_path_info *pi, |
1148 | struct bgp_path_info *best_pi, bool is_evpn, | |
4b7e6066 | 1149 | struct zapi_nexthop *api_nh) |
77e62f2b | 1150 | { |
1151 | struct attr *attr; | |
1152 | ||
40381db7 | 1153 | attr = pi->attr; |
e1e71450 | 1154 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1155 | |
e1e71450 | 1156 | if (is_evpn) { |
77e62f2b | 1157 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
2b83602b | 1158 | api_nh->onlink = true; |
e1e71450 | 1159 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1160 | } else if (nh_othervrf) { | |
77e62f2b | 1161 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1162 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1163 | api_nh->ifindex = attr->nh_ifindex; | |
1164 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1165 | if (ifindex == 0) | |
1166 | return 0; | |
1167 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1168 | api_nh->ifindex = ifindex; | |
1169 | } else { | |
1170 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1171 | api_nh->ifindex = 0; | |
1172 | } | |
1173 | } else { | |
1174 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1175 | if (pi == best_pi |
1176 | && attr->mp_nexthop_len | |
1177 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1178 | if (pi->peer->nexthop.ifp) | |
1179 | ifindex = | |
1180 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1181 | if (!ifindex) { |
40381db7 DS |
1182 | if (pi->peer->conf_if) |
1183 | ifindex = pi->peer->ifp->ifindex; | |
1184 | else if (pi->peer->ifname) | |
77e62f2b | 1185 | ifindex = ifname2ifindex( |
40381db7 DS |
1186 | pi->peer->ifname, |
1187 | pi->peer->bgp->vrf_id); | |
1188 | else if (pi->peer->nexthop.ifp) | |
1189 | ifindex = | |
1190 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1191 | } |
1192 | ||
1193 | if (ifindex == 0) | |
1194 | return 0; | |
1195 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1196 | api_nh->ifindex = ifindex; | |
1197 | } else { | |
1198 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1199 | api_nh->ifindex = 0; | |
1200 | } | |
1201 | } | |
1202 | api_nh->gate.ipv6 = *nexthop; | |
1203 | ||
1204 | return 1; | |
1205 | } | |
1206 | ||
d62a17ae | 1207 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
4b7e6066 | 1208 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1209 | safi_t safi) |
718e3744 | 1210 | { |
9913029c RW |
1211 | struct zapi_route api; |
1212 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 1213 | int nh_family; |
a74e593b | 1214 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1215 | int has_valid_label = 0; |
d7c0a89a | 1216 | uint8_t distance; |
d62a17ae | 1217 | struct peer *peer; |
4b7e6066 | 1218 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1219 | uint32_t metric; |
b4cb15c6 | 1220 | struct attr local_attr; |
4b7e6066 DS |
1221 | struct bgp_path_info local_info; |
1222 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1223 | route_tag_t tag; |
1224 | mpls_label_t label; | |
ddb5b488 | 1225 | int nh_othervrf = 0; |
960035b2 | 1226 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1227 | bool is_evpn; |
77e62f2b | 1228 | int nh_updated; |
d62a17ae | 1229 | |
1230 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1231 | * know of this instance. | |
1232 | */ | |
1233 | if (!bgp_install_info_to_zebra(bgp)) | |
1234 | return; | |
1235 | ||
d62a17ae | 1236 | if (bgp->main_zebra_update_hold) |
1237 | return; | |
1238 | ||
960035b2 | 1239 | if (bgp_debug_zebra(p)) |
ba1976db | 1240 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1241 | |
d90b788e A |
1242 | if (safi == SAFI_FLOWSPEC) { |
1243 | bgp_pbr_update_entry(bgp, &rn->p, info, afi, safi, true); | |
1244 | return; | |
1245 | } | |
529efa23 | 1246 | |
ddb5b488 PZ |
1247 | /* |
1248 | * vrf leaking support (will have only one nexthop) | |
1249 | */ | |
1250 | if (info->extra && info->extra->bgp_orig) | |
1251 | nh_othervrf = 1; | |
1252 | ||
9913029c RW |
1253 | /* Make Zebra API structure. */ |
1254 | memset(&api, 0, sizeof(api)); | |
1255 | api.vrf_id = bgp->vrf_id; | |
1256 | api.type = ZEBRA_ROUTE_BGP; | |
1257 | api.safi = safi; | |
1258 | api.prefix = *p; | |
1259 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1260 | ||
d62a17ae | 1261 | peer = info->peer; |
1262 | ||
ddb5b488 PZ |
1263 | if (info->type == ZEBRA_ROUTE_BGP |
1264 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1265 | ||
1ec90b5e | 1266 | /* Obtain peer from parent */ |
1267 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1268 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1269 | ->peer; | |
ddb5b488 PZ |
1270 | } |
1271 | ||
d62a17ae | 1272 | tag = info->attr->tag; |
1273 | ||
88493076 | 1274 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1275 | is_evpn = is_route_parent_evpn(info); |
1276 | if (is_evpn) | |
90264d64 | 1277 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1278 | |
d62a17ae | 1279 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1280 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1281 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1282 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1283 | } |
a39275d7 | 1284 | |
d62a17ae | 1285 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1286 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1287 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1288 | ||
4e8b02f4 | 1289 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1290 | |
2ad4f093 RW |
1291 | /* Metric is currently based on the best-path only */ |
1292 | metric = info->attr->med; | |
18ee8310 | 1293 | for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { |
a74e593b RW |
1294 | if (valid_nh_count >= multipath_num) |
1295 | break; | |
1296 | ||
b4cb15c6 DL |
1297 | *mpinfo_cp = *mpinfo; |
1298 | ||
d0d695f4 RW |
1299 | /* Get nexthop address-family */ |
1300 | if (p->family == AF_INET | |
1301 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1302 | nh_family = AF_INET; | |
1303 | else if (p->family == AF_INET6 | |
1304 | || (p->family == AF_INET | |
1305 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1306 | nh_family = AF_INET6; | |
1307 | else | |
1308 | continue; | |
1309 | ||
1374aec9 | 1310 | api_nh = &api.nexthops[valid_nh_count]; |
2ad4f093 | 1311 | if (nh_family == AF_INET) { |
ddb5b488 | 1312 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1313 | if (mpinfo->extra) { |
1314 | zlog_debug( | |
1315 | "%s: p=%s, bgp_is_valid_label: %d", | |
1316 | __func__, buf_prefix, | |
1317 | bgp_is_valid_label( | |
1318 | &mpinfo->extra | |
1319 | ->label[0])); | |
1320 | } else { | |
1321 | zlog_debug( | |
1322 | "%s: p=%s, extra is NULL, no label", | |
1323 | __func__, buf_prefix); | |
1324 | } | |
1325 | } | |
1326 | ||
6c0a6053 | 1327 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1328 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1329 | apply doesn't modify the BGP route info. */ |
1330 | local_attr = *mpinfo->attr; | |
1331 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1332 | } |
b4cb15c6 | 1333 | |
ddb5b488 | 1334 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1335 | if (!bgp_table_map_apply( |
d62a17ae | 1336 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1337 | mpinfo_cp)) |
1338 | continue; | |
1339 | ||
1340 | /* metric/tag is only allowed to be | |
1341 | * overridden on 1st nexthop */ | |
1342 | if (mpinfo == info) { | |
1343 | metric = mpinfo_cp->attr->med; | |
1344 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1345 | } |
b4cb15c6 | 1346 | } |
d62a17ae | 1347 | |
77e62f2b | 1348 | nh_updated = update_ipv4nh_for_route_install( |
1349 | nh_othervrf, | |
e1e71450 | 1350 | nh_othervrf ? |
1351 | info->extra->bgp_orig : bgp, | |
77e62f2b | 1352 | &mpinfo_cp->attr->nexthop, |
1353 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1354 | } else { |
f220da99 | 1355 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1356 | struct in6_addr *nexthop; |
9913029c | 1357 | |
6c0a6053 | 1358 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1359 | /* Copy info and attributes, so the route-map |
1360 | apply doesn't modify the BGP route info. */ | |
1361 | local_attr = *mpinfo->attr; | |
1362 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1363 | } |
1364 | ||
d62a17ae | 1365 | if (bgp->table_map[afi][safi].name) { |
1366 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1367 | apply doesn't modify the BGP route info. */ |
1368 | local_attr = *mpinfo->attr; | |
1369 | mpinfo_cp->attr = &local_attr; | |
1370 | ||
1371 | if (!bgp_table_map_apply( | |
d62a17ae | 1372 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1373 | mpinfo_cp)) |
1374 | continue; | |
1375 | ||
1376 | /* metric/tag is only allowed to be | |
1377 | * overridden on 1st nexthop */ | |
1378 | if (mpinfo == info) { | |
1379 | metric = mpinfo_cp->attr->med; | |
1380 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1381 | } |
b4cb15c6 | 1382 | } |
18ee8310 DS |
1383 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1384 | &ifindex); | |
77e62f2b | 1385 | nh_updated = update_ipv6nh_for_route_install( |
e1e71450 | 1386 | nh_othervrf, nh_othervrf ? |
1387 | info->extra->bgp_orig : bgp, | |
1388 | nexthop, ifindex, | |
77e62f2b | 1389 | mpinfo, info, is_evpn, api_nh); |
2ad4f093 | 1390 | } |
d62a17ae | 1391 | |
77e62f2b | 1392 | /* Did we get proper nexthop info to update zebra? */ |
1393 | if (!nh_updated) | |
1394 | continue; | |
1395 | ||
a4d82a8a PZ |
1396 | if (mpinfo->extra |
1397 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1398 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1399 | has_valid_label = 1; |
b57ba6d2 | 1400 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1401 | |
2ad4f093 RW |
1402 | api_nh->label_num = 1; |
1403 | api_nh->labels[0] = label; | |
d62a17ae | 1404 | } |
22e63104 | 1405 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1406 | sizeof(struct ethaddr)); | |
2ad4f093 RW |
1407 | valid_nh_count++; |
1408 | } | |
d62a17ae | 1409 | |
77e62f2b | 1410 | |
a89b49cc | 1411 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1412 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1413 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1414 | |
5cc347c4 DS |
1415 | /* |
1416 | * When we create an aggregate route we must also | |
1417 | * install a Null0 route in the RIB, so overwrite | |
1418 | * what was written into api with a blackhole route | |
1419 | */ | |
1420 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1421 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1422 | else | |
2ad4f093 | 1423 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1424 | |
2ad4f093 RW |
1425 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1426 | api.metric = metric; | |
d62a17ae | 1427 | |
2ad4f093 RW |
1428 | if (tag) { |
1429 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1430 | api.tag = tag; | |
1431 | } | |
d62a17ae | 1432 | |
2ad4f093 RW |
1433 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1434 | if (distance) { | |
1435 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1436 | api.distance = distance; | |
1437 | } | |
d62a17ae | 1438 | |
2ad4f093 RW |
1439 | if (bgp_debug_zebra(p)) { |
1440 | char prefix_buf[PREFIX_STRLEN]; | |
1441 | char nh_buf[INET6_ADDRSTRLEN]; | |
1442 | char label_buf[20]; | |
1443 | int i; | |
1444 | ||
1445 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1446 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1447 | " count %d", | |
1448 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1449 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1450 | for (i = 0; i < api.nexthop_num; i++) { | |
1451 | api_nh = &api.nexthops[i]; | |
1452 | ||
77e62f2b | 1453 | if (api_nh->type == NEXTHOP_TYPE_IFINDEX) |
1454 | nh_buf[0] = '\0'; | |
1455 | else { | |
1456 | if (api_nh->type == NEXTHOP_TYPE_IPV4) | |
1457 | nh_family = AF_INET; | |
1458 | else | |
1459 | nh_family = AF_INET6; | |
1460 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1461 | sizeof(nh_buf)); | |
1462 | } | |
2ad4f093 RW |
1463 | |
1464 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1465 | if (has_valid_label |
1466 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1467 | sprintf(label_buf, "label %u", |
1468 | api_nh->labels[0]); | |
77e62f2b | 1469 | zlog_debug(" nhop [%d]: %s if %u VRF %u %s", |
1470 | i + 1, nh_buf, api_nh->ifindex, | |
1471 | api_nh->vrf_id, label_buf); | |
d62a17ae | 1472 | } |
1473 | } | |
2ad4f093 | 1474 | |
960035b2 PZ |
1475 | if (bgp_debug_zebra(p)) { |
1476 | int recursion_flag = 0; | |
1477 | ||
1478 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1479 | recursion_flag = 1; | |
1480 | ||
1481 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1482 | __func__, buf_prefix, | |
1483 | (recursion_flag ? "" : "NOT ")); | |
1484 | } | |
2ad4f093 RW |
1485 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1486 | : ZEBRA_ROUTE_DELETE, | |
1487 | zclient, &api); | |
718e3744 | 1488 | } |
1489 | ||
73ac8160 | 1490 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1491 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1492 | { |
d62a17ae | 1493 | struct bgp_node *rn; |
1494 | struct bgp_table *table; | |
40381db7 | 1495 | struct bgp_path_info *pi; |
d62a17ae | 1496 | |
1497 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1498 | * know of this instance. | |
1499 | */ | |
1500 | if (!bgp_install_info_to_zebra(bgp)) | |
1501 | return; | |
1502 | ||
1503 | table = bgp->rib[afi][safi]; | |
1504 | if (!table) | |
1505 | return; | |
1506 | ||
1507 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
6f94b685 | 1508 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 | 1509 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1510 | |
40381db7 DS |
1511 | (pi->type == ZEBRA_ROUTE_BGP |
1512 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1513 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1514 | |
40381db7 | 1515 | bgp_zebra_announce(rn, &rn->p, pi, bgp, afi, |
d62a17ae | 1516 | safi); |
73ac8160 DS |
1517 | } |
1518 | ||
4b7e6066 | 1519 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1520 | struct bgp *bgp, safi_t safi) |
718e3744 | 1521 | { |
2ad4f093 | 1522 | struct zapi_route api; |
f7df1907 | 1523 | struct peer *peer; |
ddb5b488 | 1524 | |
d62a17ae | 1525 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1526 | * know of this instance. | |
1527 | */ | |
568e10ca | 1528 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1529 | return; |
1530 | ||
f7df1907 PG |
1531 | if (safi == SAFI_FLOWSPEC) { |
1532 | peer = info->peer; | |
d90b788e A |
1533 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1534 | return; | |
f7df1907 | 1535 | } |
529efa23 | 1536 | |
2ad4f093 | 1537 | memset(&api, 0, sizeof(api)); |
568e10ca | 1538 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1539 | api.type = ZEBRA_ROUTE_BGP; |
1540 | api.safi = safi; | |
1541 | api.prefix = *p; | |
d62a17ae | 1542 | |
88493076 | 1543 | /* If the route's source is EVPN, flag as such. */ |
1544 | if (is_route_parent_evpn(info)) | |
90264d64 | 1545 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1546 | |
2ad4f093 RW |
1547 | if (bgp_debug_zebra(p)) { |
1548 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1549 | |
2ad4f093 | 1550 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1551 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1552 | } |
d62a17ae | 1553 | |
2ad4f093 | 1554 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1555 | } |
56c1f7d8 | 1556 | |
d7c0a89a QY |
1557 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1558 | unsigned short instance) | |
7c8ff89e | 1559 | { |
d62a17ae | 1560 | struct list *red_list; |
1561 | struct listnode *node; | |
1562 | struct bgp_redist *red; | |
7c8ff89e | 1563 | |
d62a17ae | 1564 | red_list = bgp->redist[afi][type]; |
1565 | if (!red_list) | |
1566 | return (NULL); | |
7c8ff89e | 1567 | |
d62a17ae | 1568 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1569 | if (red->instance == instance) | |
1570 | return red; | |
7c8ff89e | 1571 | |
d62a17ae | 1572 | return NULL; |
7c8ff89e DS |
1573 | } |
1574 | ||
d7c0a89a QY |
1575 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1576 | unsigned short instance) | |
7c8ff89e | 1577 | { |
d62a17ae | 1578 | struct list *red_list; |
1579 | struct bgp_redist *red; | |
7c8ff89e | 1580 | |
d62a17ae | 1581 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1582 | if (red) | |
1583 | return red; | |
7c8ff89e | 1584 | |
d62a17ae | 1585 | if (!bgp->redist[afi][type]) |
1586 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1587 | |
d62a17ae | 1588 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1589 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1590 | red->instance = instance; |
7c8ff89e | 1591 | |
d62a17ae | 1592 | listnode_add(red_list, red); |
7c8ff89e | 1593 | |
d62a17ae | 1594 | return red; |
7c8ff89e DS |
1595 | } |
1596 | ||
d7c0a89a QY |
1597 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1598 | unsigned short instance) | |
7c8ff89e | 1599 | { |
d62a17ae | 1600 | struct bgp_redist *red; |
1601 | ||
1602 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1603 | ||
1604 | if (red) { | |
1605 | listnode_delete(bgp->redist[afi][type], red); | |
1606 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1607 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1608 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1609 | } |
7c8ff89e | 1610 | } |
6b0655a2 | 1611 | |
718e3744 | 1612 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1613 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1614 | unsigned short instance, bool changed) |
718e3744 | 1615 | { |
e923dd62 | 1616 | /* If redistribute options are changed call |
1617 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1618 | * the routes | |
1619 | */ | |
1620 | if (changed) | |
1621 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1622 | |
d62a17ae | 1623 | /* Return if already redistribute flag is set. */ |
1624 | if (instance) { | |
1625 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1626 | instance)) | |
1627 | return CMD_WARNING; | |
718e3744 | 1628 | |
d62a17ae | 1629 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1630 | } else { | |
1631 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1632 | return CMD_WARNING; | |
7076bb2f | 1633 | |
65efcfce | 1634 | #if ENABLE_BGP_VNC |
d62a17ae | 1635 | if (bgp->vrf_id == VRF_DEFAULT |
1636 | && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1637 | vnc_export_bgp_enable( | |
1638 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1639 | } | |
65efcfce LB |
1640 | #endif |
1641 | ||
d62a17ae | 1642 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1643 | } | |
718e3744 | 1644 | |
ea12cf11 DS |
1645 | /* |
1646 | * Don't try to register if we're not connected to Zebra or Zebra | |
1647 | * doesn't know of this instance. | |
1648 | * | |
1649 | * When we come up later well resend if needed. | |
d62a17ae | 1650 | */ |
1651 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1652 | return CMD_SUCCESS; |
a39275d7 | 1653 | |
d62a17ae | 1654 | if (BGP_DEBUG(zebra, ZEBRA)) |
1655 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1656 | bgp->vrf_id, afi, zebra_route_string(type), | |
1657 | instance); | |
518f0eb1 | 1658 | |
d62a17ae | 1659 | /* Send distribute add message to zebra. */ |
1660 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1661 | instance, bgp->vrf_id); | |
718e3744 | 1662 | |
d62a17ae | 1663 | return CMD_SUCCESS; |
718e3744 | 1664 | } |
1665 | ||
d62a17ae | 1666 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1667 | unsigned short instance) |
518f0eb1 | 1668 | { |
d62a17ae | 1669 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1670 | * know of this instance. | |
1671 | */ | |
1672 | if (!bgp_install_info_to_zebra(bgp)) | |
1673 | return -1; | |
1674 | ||
1675 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1676 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1677 | bgp->vrf_id, afi, zebra_route_string(type), | |
1678 | instance); | |
1679 | ||
1680 | /* Send distribute add message to zebra. */ | |
1681 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1682 | instance, bgp->vrf_id); | |
1683 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1684 | instance, bgp->vrf_id); | |
1685 | ||
1686 | return 0; | |
518f0eb1 DS |
1687 | } |
1688 | ||
718e3744 | 1689 | /* Redistribute with route-map specification. */ |
1de27621 DA |
1690 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1691 | struct route_map *route_map) | |
718e3744 | 1692 | { |
d62a17ae | 1693 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1694 | return 0; | |
718e3744 | 1695 | |
0a22ddfb | 1696 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1697 | /* Decrement the count for existing routemap and |
1698 | * increment the count for new route map. | |
1699 | */ | |
1700 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1701 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1702 | red->rmap.map = route_map; |
b4897fa5 | 1703 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1704 | |
d62a17ae | 1705 | return 1; |
718e3744 | 1706 | } |
1707 | ||
1708 | /* Redistribute with metric specification. */ | |
d62a17ae | 1709 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
d7c0a89a | 1710 | afi_t afi, int type, uint32_t metric) |
718e3744 | 1711 | { |
d62a17ae | 1712 | struct bgp_node *rn; |
40381db7 | 1713 | struct bgp_path_info *pi; |
d62a17ae | 1714 | |
1715 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1716 | return 0; | |
1717 | ||
1718 | red->redist_metric_flag = 1; | |
1719 | red->redist_metric = metric; | |
1720 | ||
1721 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1722 | rn = bgp_route_next(rn)) { | |
6f94b685 | 1723 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 DS |
1724 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1725 | && pi->type == type | |
1726 | && pi->instance == red->instance) { | |
d62a17ae | 1727 | struct attr *old_attr; |
1728 | struct attr new_attr; | |
1729 | ||
40381db7 | 1730 | bgp_attr_dup(&new_attr, pi->attr); |
d62a17ae | 1731 | new_attr.med = red->redist_metric; |
40381db7 DS |
1732 | old_attr = pi->attr; |
1733 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1734 | bgp_attr_unintern(&old_attr); |
1735 | ||
40381db7 | 1736 | bgp_path_info_set_flag(rn, pi, |
18ee8310 | 1737 | BGP_PATH_ATTR_CHANGED); |
d62a17ae | 1738 | bgp_process(bgp, rn, afi, SAFI_UNICAST); |
1739 | } | |
1740 | } | |
1741 | } | |
1742 | ||
1743 | return 1; | |
718e3744 | 1744 | } |
1745 | ||
1746 | /* Unset redistribution. */ | |
d62a17ae | 1747 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1748 | unsigned short instance) |
718e3744 | 1749 | { |
d62a17ae | 1750 | struct bgp_redist *red; |
1751 | ||
1752 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1753 | if (!red) | |
1754 | return CMD_SUCCESS; | |
1755 | ||
1756 | /* Return if zebra connection is disabled. */ | |
1757 | if (instance) { | |
1758 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1759 | instance)) | |
1760 | return CMD_WARNING; | |
1761 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1762 | } else { | |
1763 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1764 | return CMD_WARNING; | |
1765 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1766 | } | |
718e3744 | 1767 | |
65efcfce | 1768 | |
d62a17ae | 1769 | if (bgp_install_info_to_zebra(bgp)) { |
1770 | /* Send distribute delete message to zebra. */ | |
1771 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1772 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1773 | bgp->vrf_id, afi, zebra_route_string(type), | |
1774 | instance); | |
1775 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1776 | type, instance, bgp->vrf_id); | |
1777 | } | |
1778 | ||
1779 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1780 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1781 | ||
1782 | return CMD_SUCCESS; | |
718e3744 | 1783 | } |
1784 | ||
6aeb9e78 | 1785 | /* Unset redistribution. */ |
d62a17ae | 1786 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1787 | unsigned short instance) |
6aeb9e78 | 1788 | { |
d62a17ae | 1789 | struct bgp_redist *red; |
6aeb9e78 | 1790 | |
ddb5b488 PZ |
1791 | /* |
1792 | * vnc and vpn->vrf checks must be before red check because | |
1793 | * they operate within bgpd irrespective of zebra connection | |
1794 | * status. red lookup fails if there is no zebra connection. | |
1795 | */ | |
1796 | #if ENABLE_BGP_VNC | |
1797 | if (bgp->vrf_id == VRF_DEFAULT && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1798 | vnc_export_bgp_disable(bgp, afi); | |
1799 | } | |
1800 | #endif | |
ddb5b488 | 1801 | |
d62a17ae | 1802 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1803 | if (!red) | |
1804 | return CMD_SUCCESS; | |
6aeb9e78 | 1805 | |
d62a17ae | 1806 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1807 | |
d62a17ae | 1808 | /* Unset route-map. */ |
0a22ddfb | 1809 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1810 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 1811 | red->rmap.name = NULL; |
1812 | red->rmap.map = NULL; | |
6aeb9e78 | 1813 | |
d62a17ae | 1814 | /* Unset metric. */ |
1815 | red->redist_metric_flag = 0; | |
1816 | red->redist_metric = 0; | |
6aeb9e78 | 1817 | |
d62a17ae | 1818 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1819 | |
d62a17ae | 1820 | return CMD_SUCCESS; |
6aeb9e78 DS |
1821 | } |
1822 | ||
fc2408ec DS |
1823 | void bgp_redistribute_redo(struct bgp *bgp) |
1824 | { | |
1825 | afi_t afi; | |
1826 | int i; | |
1827 | struct list *red_list; | |
1828 | struct listnode *node; | |
1829 | struct bgp_redist *red; | |
1830 | ||
1831 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
1832 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
1833 | ||
1834 | red_list = bgp->redist[afi][i]; | |
1835 | if (!red_list) | |
1836 | continue; | |
1837 | ||
1838 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1839 | bgp_redistribute_resend(bgp, afi, i, | |
1840 | red->instance); | |
1841 | } | |
1842 | } | |
1843 | } | |
1844 | } | |
1845 | ||
401d56cc DS |
1846 | /* Unset redistribute vrf bitmap during triggers like |
1847 | restart networking or delete VRFs */ | |
1848 | void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) | |
eb117f29 | 1849 | { |
d62a17ae | 1850 | int i; |
1851 | afi_t afi; | |
1852 | ||
1853 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1854 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
7e20406f | 1855 | if (vrf_bitmap_check(zclient->redist[afi][i], |
401d56cc | 1856 | old_vrf_id)) |
d62a17ae | 1857 | vrf_bitmap_unset(zclient->redist[afi][i], |
1858 | old_vrf_id); | |
d62a17ae | 1859 | return; |
eb117f29 SK |
1860 | } |
1861 | ||
d62a17ae | 1862 | void bgp_zclient_reset(void) |
718e3744 | 1863 | { |
d62a17ae | 1864 | zclient_reset(zclient); |
718e3744 | 1865 | } |
1866 | ||
ad4cbda1 | 1867 | /* Register this instance with Zebra. Invoked upon connect (for |
1868 | * default instance) and when other VRFs are learnt (or created and | |
1869 | * already learnt). | |
1870 | */ | |
d62a17ae | 1871 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1872 | { |
d62a17ae | 1873 | /* Don't try to register if we're not connected to Zebra */ |
1874 | if (!zclient || zclient->sock < 0) | |
1875 | return; | |
ad4cbda1 | 1876 | |
d62a17ae | 1877 | if (BGP_DEBUG(zebra, ZEBRA)) |
1878 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1879 | |
d62a17ae | 1880 | /* Register for router-id, interfaces, redistributed routes. */ |
1881 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1882 | |
d62a17ae | 1883 | /* For default instance, register to learn about VNIs, if appropriate. |
1884 | */ | |
a4d82a8a | 1885 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1886 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1887 | |
1888 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1889 | } |
1890 | ||
1891 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1892 | * being deleted (default or VRF) and it is already registered. | |
1893 | */ | |
d62a17ae | 1894 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1895 | { |
d62a17ae | 1896 | /* Don't try to deregister if we're not connected to Zebra */ |
1897 | if (zclient->sock < 0) | |
1898 | return; | |
ad4cbda1 | 1899 | |
d62a17ae | 1900 | if (BGP_DEBUG(zebra, ZEBRA)) |
1901 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1902 | |
d62a17ae | 1903 | /* For default instance, unregister learning about VNIs, if appropriate. |
1904 | */ | |
a4d82a8a | 1905 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1906 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1907 | |
d62a17ae | 1908 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1909 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1910 | } |
1911 | ||
d62a17ae | 1912 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1913 | { |
d62a17ae | 1914 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1915 | |
d62a17ae | 1916 | /* Don't try to initiate if we're not connected to Zebra */ |
1917 | if (zclient->sock < 0) | |
1918 | return; | |
4a04e5f7 | 1919 | |
d62a17ae | 1920 | if (BGP_DEBUG(zebra, ZEBRA)) |
1921 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1922 | peer->host); | |
4a04e5f7 | 1923 | |
d62a17ae | 1924 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1925 | ra_interval); | |
4a04e5f7 | 1926 | } |
1927 | ||
d62a17ae | 1928 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1929 | { |
d62a17ae | 1930 | /* Don't try to terminate if we're not connected to Zebra */ |
1931 | if (zclient->sock < 0) | |
1932 | return; | |
4a04e5f7 | 1933 | |
d62a17ae | 1934 | if (BGP_DEBUG(zebra, ZEBRA)) |
1935 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1936 | peer->host); | |
4a04e5f7 | 1937 | |
d62a17ae | 1938 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1939 | } |
1940 | ||
31310b25 MK |
1941 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1942 | { | |
1943 | struct stream *s = NULL; | |
1944 | ||
1945 | /* Check socket. */ | |
1946 | if (!zclient || zclient->sock < 0) | |
1947 | return 0; | |
1948 | ||
1949 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1950 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1951 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1952 | zlog_debug("%s: No zebra instance to talk to, cannot advertise subnet", | |
1953 | __PRETTY_FUNCTION__); | |
31310b25 | 1954 | return 0; |
bb4ef1ae | 1955 | } |
31310b25 MK |
1956 | |
1957 | s = zclient->obuf; | |
1958 | stream_reset(s); | |
1959 | ||
1960 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1961 | stream_putc(s, advertise); | |
1962 | stream_put3(s, vni); | |
1963 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1964 | ||
1965 | return zclient_send_message(zclient); | |
1966 | } | |
1967 | ||
a8016157 CS |
1968 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
1969 | { | |
1970 | struct stream *s = NULL; | |
1971 | ||
1972 | /* Check socket. */ | |
1973 | if (!zclient || zclient->sock < 0) | |
1974 | return 0; | |
1975 | ||
1976 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1977 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1978 | return 0; | |
1979 | ||
1980 | s = zclient->obuf; | |
1981 | stream_reset(s); | |
1982 | ||
1983 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
1984 | stream_putc(s, advertise); | |
1985 | stream_putl(s, vni); | |
1986 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1987 | ||
1988 | return zclient_send_message(zclient); | |
1989 | } | |
1990 | ||
1a98c087 MK |
1991 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1992 | { | |
1993 | struct stream *s = NULL; | |
1994 | ||
1995 | /* Check socket. */ | |
1996 | if (!zclient || zclient->sock < 0) | |
1997 | return 0; | |
1998 | ||
1999 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2000 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2001 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2002 | zlog_debug("%s: No zebra instance to talk to, not installing gw_macip", | |
2003 | __PRETTY_FUNCTION__); | |
1a98c087 | 2004 | return 0; |
bb4ef1ae | 2005 | } |
1a98c087 MK |
2006 | |
2007 | s = zclient->obuf; | |
2008 | stream_reset(s); | |
2009 | ||
2010 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
2011 | stream_putc(s, advertise); | |
cc6d5476 | 2012 | stream_putl(s, vni); |
1a98c087 MK |
2013 | stream_putw_at(s, 0, stream_get_endp(s)); |
2014 | ||
2015 | return zclient_send_message(zclient); | |
2016 | } | |
2017 | ||
fd069644 DS |
2018 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2019 | enum vxlan_flood_control flood_ctrl) | |
2020 | { | |
2021 | struct stream *s; | |
2022 | ||
2023 | /* Check socket. */ | |
2024 | if (!zclient || zclient->sock < 0) | |
2025 | return 0; | |
2026 | ||
2027 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2028 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2029 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2030 | zlog_debug("%s: No zebra instance to talk to, not installing all vni", | |
2031 | __PRETTY_FUNCTION__); | |
fd069644 | 2032 | return 0; |
bb4ef1ae | 2033 | } |
fd069644 DS |
2034 | |
2035 | s = zclient->obuf; | |
2036 | stream_reset(s); | |
2037 | ||
2038 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2039 | stream_putc(s, flood_ctrl); | |
2040 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2041 | ||
2042 | return zclient_send_message(zclient); | |
2043 | } | |
2044 | ||
d62a17ae | 2045 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2046 | { |
d62a17ae | 2047 | struct stream *s; |
7724c0a1 | 2048 | |
d62a17ae | 2049 | /* Check socket. */ |
2050 | if (!zclient || zclient->sock < 0) | |
2051 | return 0; | |
7724c0a1 | 2052 | |
d62a17ae | 2053 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2054 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2055 | return 0; | |
7724c0a1 | 2056 | |
d62a17ae | 2057 | s = zclient->obuf; |
2058 | stream_reset(s); | |
7724c0a1 | 2059 | |
d62a17ae | 2060 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2061 | stream_putc(s, advertise); | |
fbac9605 DS |
2062 | /* Also inform current BUM handling setting. This is really |
2063 | * relevant only when 'advertise' is set. | |
2064 | */ | |
fd069644 | 2065 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2066 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2067 | |
d62a17ae | 2068 | return zclient_send_message(zclient); |
7724c0a1 | 2069 | } |
2070 | ||
0b9d9cd0 CS |
2071 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2072 | { | |
2073 | struct stream *s; | |
2074 | ||
2075 | /* Check socket. */ | |
2076 | if (!zclient || zclient->sock < 0) | |
2077 | return 0; | |
2078 | ||
2079 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2080 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2081 | return 0; | |
2082 | ||
2083 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2084 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2085 | bgp->evpn_info->dup_addr_detect ? | |
2086 | "enable" : "disable", | |
2087 | bgp->evpn_info->dad_max_moves, | |
2088 | bgp->evpn_info->dad_time, | |
2089 | bgp->evpn_info->dad_freeze ? | |
2090 | "enable" : "disable", | |
2091 | bgp->evpn_info->dad_freeze_time); | |
2092 | ||
2093 | s = zclient->obuf; | |
2094 | stream_reset(s); | |
2095 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2096 | bgp->vrf_id); | |
2097 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2098 | stream_putl(s, bgp->evpn_info->dad_time); | |
2099 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2100 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2101 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2102 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2103 | ||
2104 | return zclient_send_message(zclient); | |
2105 | } | |
2106 | ||
30d50e6d PG |
2107 | static int rule_notify_owner(int command, struct zclient *zclient, |
2108 | zebra_size_t length, vrf_id_t vrf_id) | |
2109 | { | |
2110 | uint32_t seqno, priority, unique; | |
2111 | enum zapi_rule_notify_owner note; | |
2112 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2113 | struct bgp_pbr_rule *bgp_pbr = NULL; |
30d50e6d PG |
2114 | ifindex_t ifi; |
2115 | ||
2116 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
2117 | &ifi, ¬e)) | |
2118 | return -1; | |
2119 | ||
70eabd12 | 2120 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2121 | if (!bgp_pbra) { |
ffee150e PG |
2122 | /* look in bgp pbr rule */ |
2123 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2124 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2125 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2126 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
2127 | __PRETTY_FUNCTION__, unique); | |
2128 | return 0; | |
2129 | } | |
30d50e6d PG |
2130 | } |
2131 | ||
2132 | switch (note) { | |
2133 | case ZAPI_RULE_FAIL_INSTALL: | |
2134 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2135 | zlog_debug("%s: Received RULE_FAIL_INSTALL", | |
2136 | __PRETTY_FUNCTION__); | |
ffee150e PG |
2137 | if (bgp_pbra) { |
2138 | bgp_pbra->installed = false; | |
2139 | bgp_pbra->install_in_progress = false; | |
2140 | } else { | |
2141 | bgp_pbr->installed = false; | |
2142 | bgp_pbr->install_in_progress = false; | |
2143 | } | |
30d50e6d PG |
2144 | break; |
2145 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2146 | if (bgp_pbra) { |
2147 | bgp_pbra->installed = true; | |
2148 | bgp_pbra->install_in_progress = false; | |
2149 | } else { | |
ce3c0614 PG |
2150 | struct bgp_path_info *path; |
2151 | struct bgp_path_info_extra *extra; | |
2152 | ||
ffee150e PG |
2153 | bgp_pbr->installed = true; |
2154 | bgp_pbr->install_in_progress = false; | |
2155 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2156 | /* link bgp_info to bgp_pbr */ |
2157 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2158 | extra = bgp_path_info_extra_get(path); | |
3e3708cb PG |
2159 | if (!extra->bgp_fs_iprule) |
2160 | extra->bgp_fs_iprule = list_new(); | |
ce3c0614 | 2161 | listnode_add(extra->bgp_fs_iprule, bgp_pbr); |
ffee150e | 2162 | } |
30d50e6d PG |
2163 | if (BGP_DEBUG(zebra, ZEBRA)) |
2164 | zlog_debug("%s: Received RULE_INSTALLED", | |
2165 | __PRETTY_FUNCTION__); | |
2166 | break; | |
f18a08f5 | 2167 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2168 | case ZAPI_RULE_REMOVED: |
2169 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2170 | zlog_debug("%s: Received RULE REMOVED", | |
2171 | __PRETTY_FUNCTION__); | |
2172 | break; | |
2173 | } | |
2174 | ||
2175 | return 0; | |
2176 | } | |
2177 | ||
2178 | static int ipset_notify_owner(int command, struct zclient *zclient, | |
2179 | zebra_size_t length, vrf_id_t vrf_id) | |
2180 | { | |
2181 | uint32_t unique; | |
2182 | enum zapi_ipset_notify_owner note; | |
2183 | struct bgp_pbr_match *bgp_pbim; | |
2184 | ||
2185 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2186 | &unique, | |
2187 | ¬e)) | |
2188 | return -1; | |
2189 | ||
2190 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2191 | if (!bgp_pbim) { | |
2192 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2193 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
82e194ed | 2194 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2195 | return 0; |
2196 | } | |
2197 | ||
2198 | switch (note) { | |
2199 | case ZAPI_IPSET_FAIL_INSTALL: | |
2200 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2201 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", | |
2202 | __PRETTY_FUNCTION__); | |
2203 | bgp_pbim->installed = false; | |
2204 | bgp_pbim->install_in_progress = false; | |
2205 | break; | |
2206 | case ZAPI_IPSET_INSTALLED: | |
2207 | bgp_pbim->installed = true; | |
2208 | bgp_pbim->install_in_progress = false; | |
2209 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2210 | zlog_debug("%s: Received IPSET_INSTALLED", | |
2211 | __PRETTY_FUNCTION__); | |
2212 | break; | |
f18a08f5 | 2213 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2214 | case ZAPI_IPSET_REMOVED: |
2215 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2216 | zlog_debug("%s: Received IPSET REMOVED", | |
2217 | __PRETTY_FUNCTION__); | |
2218 | break; | |
2219 | } | |
2220 | ||
2221 | return 0; | |
2222 | } | |
2223 | ||
2224 | static int ipset_entry_notify_owner(int command, struct zclient *zclient, | |
2225 | zebra_size_t length, vrf_id_t vrf_id) | |
2226 | { | |
2227 | uint32_t unique; | |
2228 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2229 | enum zapi_ipset_entry_notify_owner note; | |
2230 | struct bgp_pbr_match_entry *bgp_pbime; | |
2231 | ||
2232 | if (!zapi_ipset_entry_notify_decode( | |
2233 | zclient->ibuf, | |
2234 | &unique, | |
2235 | ipset_name, | |
2236 | ¬e)) | |
2237 | return -1; | |
2238 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2239 | ipset_name, | |
2240 | unique); | |
2241 | if (!bgp_pbime) { | |
2242 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2243 | zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)", |
82e194ed | 2244 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2245 | return 0; |
2246 | } | |
2247 | ||
2248 | switch (note) { | |
2249 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2250 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2251 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
2252 | __PRETTY_FUNCTION__); | |
2253 | bgp_pbime->installed = false; | |
2254 | bgp_pbime->install_in_progress = false; | |
2255 | break; | |
2256 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2257 | { |
9b6d8fcf | 2258 | struct bgp_path_info *path; |
4b7e6066 DS |
2259 | struct bgp_path_info_extra *extra; |
2260 | ||
2261 | bgp_pbime->installed = true; | |
2262 | bgp_pbime->install_in_progress = false; | |
2263 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2264 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
2265 | __PRETTY_FUNCTION__); | |
9b6d8fcf DS |
2266 | /* link bgp_path_info to bpme */ |
2267 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2268 | extra = bgp_path_info_extra_get(path); | |
3e3708cb PG |
2269 | if (!extra->bgp_fs_pbr) |
2270 | extra->bgp_fs_pbr = list_new(); | |
4b7e6066 | 2271 | listnode_add(extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2272 | } |
30d50e6d | 2273 | break; |
f18a08f5 | 2274 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2275 | case ZAPI_IPSET_ENTRY_REMOVED: |
2276 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2277 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
2278 | __PRETTY_FUNCTION__); | |
2279 | break; | |
2280 | } | |
2281 | return 0; | |
2282 | } | |
2283 | ||
c16a0a62 PG |
2284 | static int iptable_notify_owner(int command, struct zclient *zclient, |
2285 | zebra_size_t length, vrf_id_t vrf_id) | |
2286 | { | |
2287 | uint32_t unique; | |
2288 | enum zapi_iptable_notify_owner note; | |
2289 | struct bgp_pbr_match *bgpm; | |
2290 | ||
2291 | if (!zapi_iptable_notify_decode( | |
2292 | zclient->ibuf, | |
2293 | &unique, | |
2294 | ¬e)) | |
2295 | return -1; | |
2296 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2297 | if (!bgpm) { | |
2298 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed PG |
2299 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
2300 | __PRETTY_FUNCTION__, note, unique); | |
c16a0a62 PG |
2301 | return 0; |
2302 | } | |
2303 | switch (note) { | |
2304 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2305 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2306 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
2307 | __PRETTY_FUNCTION__); | |
2308 | bgpm->installed_in_iptable = false; | |
2309 | bgpm->install_iptable_in_progress = false; | |
2310 | break; | |
2311 | case ZAPI_IPTABLE_INSTALLED: | |
2312 | bgpm->installed_in_iptable = true; | |
2313 | bgpm->install_iptable_in_progress = false; | |
2314 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2315 | zlog_debug("%s: Received IPTABLE_INSTALLED", | |
2316 | __PRETTY_FUNCTION__); | |
a6b07429 | 2317 | bgpm->action->refcnt++; |
c16a0a62 | 2318 | break; |
f18a08f5 | 2319 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2320 | case ZAPI_IPTABLE_REMOVED: |
2321 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2322 | zlog_debug("%s: Received IPTABLE REMOVED", | |
2323 | __PRETTY_FUNCTION__); | |
2324 | break; | |
2325 | } | |
2326 | return 0; | |
2327 | } | |
2328 | ||
6cfe5d15 PG |
2329 | /* this function is used to forge ip rule, |
2330 | * - either for iptable/ipset using fwmark id | |
2331 | * - or for sample ip rule command | |
2332 | */ | |
30d50e6d | 2333 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2334 | struct bgp_pbr_action *pbra, |
2335 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2336 | { |
6cfe5d15 | 2337 | struct prefix pfx; |
30d50e6d PG |
2338 | |
2339 | stream_putl(s, 0); /* seqno unused */ | |
8112a7a0 PG |
2340 | if (pbr) |
2341 | stream_putl(s, pbr->priority); | |
2342 | else | |
2343 | stream_putl(s, 0); | |
2344 | /* ruleno unused - priority change | |
2345 | * ruleno permits distinguishing various FS PBR entries | |
2346 | * - FS PBR entries based on ipset/iptables | |
2347 | * - FS PBR entries based on iprule | |
2348 | * the latter may contain default routing information injected by FS | |
2349 | */ | |
6cfe5d15 PG |
2350 | if (pbr) |
2351 | stream_putl(s, pbr->unique); | |
2352 | else | |
2353 | stream_putl(s, pbra->unique); | |
2354 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) | |
2355 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2356 | else { | |
2357 | memset(&pfx, 0, sizeof(pfx)); | |
2358 | pfx.family = AF_INET; | |
2359 | } | |
2360 | stream_putc(s, pfx.family); | |
2361 | stream_putc(s, pfx.prefixlen); | |
2362 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2363 | |
2364 | stream_putw(s, 0); /* src port */ | |
2365 | ||
6cfe5d15 PG |
2366 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2367 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2368 | else { | |
2369 | memset(&pfx, 0, sizeof(pfx)); | |
2370 | pfx.family = AF_INET; | |
2371 | } | |
2372 | stream_putc(s, pfx.family); | |
2373 | stream_putc(s, pfx.prefixlen); | |
2374 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2375 | |
2376 | stream_putw(s, 0); /* dst port */ | |
2377 | ||
6cfe5d15 PG |
2378 | /* if pbr present, fwmark is not used */ |
2379 | if (pbr) | |
2380 | stream_putl(s, 0); | |
2381 | else | |
2382 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d PG |
2383 | |
2384 | stream_putl(s, pbra->table_id); | |
2385 | ||
2386 | stream_putl(s, 0); /* ifindex unused */ | |
2387 | } | |
2388 | ||
2389 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2390 | struct bgp_pbr_match *pbim) | |
2391 | { | |
2392 | stream_putl(s, pbim->unique); | |
2393 | stream_putl(s, pbim->type); | |
2394 | ||
2395 | stream_put(s, pbim->ipset_name, | |
2396 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2397 | } |
2398 | ||
2399 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2400 | struct bgp_pbr_match_entry *pbime) | |
2401 | { | |
2402 | stream_putl(s, pbime->unique); | |
2403 | /* check that back pointer is not null */ | |
2404 | stream_put(s, pbime->backpointer->ipset_name, | |
2405 | ZEBRA_IPSET_NAME_SIZE); | |
2406 | ||
2407 | stream_putc(s, pbime->src.family); | |
2408 | stream_putc(s, pbime->src.prefixlen); | |
2409 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2410 | ||
2411 | stream_putc(s, pbime->dst.family); | |
2412 | stream_putc(s, pbime->dst.prefixlen); | |
2413 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2414 | |
2415 | stream_putw(s, pbime->src_port_min); | |
2416 | stream_putw(s, pbime->src_port_max); | |
2417 | stream_putw(s, pbime->dst_port_min); | |
2418 | stream_putw(s, pbime->dst_port_max); | |
2419 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2420 | } |
2421 | ||
c16a0a62 PG |
2422 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2423 | struct bgp_pbr_action *bpa, | |
2424 | struct bgp_pbr_match *pbm) | |
2425 | { | |
2426 | stream_putl(s, pbm->unique2); | |
2427 | ||
2428 | stream_putl(s, pbm->type); | |
2429 | ||
2430 | stream_putl(s, pbm->flags); | |
2431 | ||
2432 | /* TODO: correlate with what is contained | |
2433 | * into bgp_pbr_action. | |
2434 | * currently only forward supported | |
2435 | */ | |
2436 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2437 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2438 | else | |
2439 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2440 | stream_putl(s, bpa->fwmark); | |
2441 | stream_put(s, pbm->ipset_name, | |
2442 | ZEBRA_IPSET_NAME_SIZE); | |
83360720 PG |
2443 | stream_putw(s, pbm->pkt_len_min); |
2444 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2445 | stream_putw(s, pbm->tcp_flags); |
2446 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2447 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2448 | stream_putc(s, pbm->fragment); |
c16a0a62 PG |
2449 | } |
2450 | ||
ad4cbda1 | 2451 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2452 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2453 | { |
d62a17ae | 2454 | struct bgp *bgp; |
7076bb2f | 2455 | |
d62a17ae | 2456 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2457 | |
d62a17ae | 2458 | /* At this point, we may or may not have BGP instances configured, but |
2459 | * we're only interested in the default VRF (others wouldn't have learnt | |
2460 | * the VRF from Zebra yet.) | |
2461 | */ | |
2462 | bgp = bgp_get_default(); | |
2463 | if (!bgp) | |
2464 | return; | |
ad4cbda1 | 2465 | |
d62a17ae | 2466 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2467 | |
d62a17ae | 2468 | /* Send the client registration */ |
2469 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER); | |
2376c3f2 | 2470 | |
955bfd98 | 2471 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2472 | bgp_lp_event_zebra_up(); |
955bfd98 | 2473 | |
d62a17ae | 2474 | /* TODO - What if we have peers and networks configured, do we have to |
2475 | * kick-start them? | |
2476 | */ | |
7076bb2f FL |
2477 | } |
2478 | ||
50f74cf1 | 2479 | static int bgp_zebra_process_local_es(int cmd, struct zclient *zclient, |
2480 | zebra_size_t length, vrf_id_t vrf_id) | |
2481 | { | |
2482 | esi_t esi; | |
2483 | struct bgp *bgp = NULL; | |
2484 | struct stream *s = NULL; | |
2485 | char buf[ESI_STR_LEN]; | |
2486 | char buf1[INET6_ADDRSTRLEN]; | |
2487 | struct ipaddr originator_ip; | |
2488 | ||
2489 | memset(&esi, 0, sizeof(esi_t)); | |
2490 | memset(&originator_ip, 0, sizeof(struct ipaddr)); | |
2491 | ||
2492 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2493 | if (!bgp) | |
2494 | return 0; | |
2495 | ||
2496 | s = zclient->ibuf; | |
2497 | stream_get(&esi, s, sizeof(esi_t)); | |
2498 | stream_get(&originator_ip, s, sizeof(struct ipaddr)); | |
2499 | ||
2500 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2501 | zlog_debug("Rx %s ESI %s originator-ip %s", | |
2502 | (cmd == ZEBRA_LOCAL_ES_ADD) ? "add" : "del", | |
2503 | esi_to_str(&esi, buf, sizeof(buf)), | |
2504 | ipaddr2str(&originator_ip, buf1, sizeof(buf1))); | |
2505 | ||
2506 | if (cmd == ZEBRA_LOCAL_ES_ADD) | |
2507 | bgp_evpn_local_es_add(bgp, &esi, &originator_ip); | |
2508 | else | |
2509 | bgp_evpn_local_es_del(bgp, &esi, &originator_ip); | |
2510 | return 0; | |
2511 | } | |
2512 | ||
fe1dc5a3 MK |
2513 | static int bgp_zebra_process_local_l3vni(int cmd, struct zclient *zclient, |
2514 | zebra_size_t length, vrf_id_t vrf_id) | |
2515 | { | |
c48d9f5f | 2516 | int filter = 0; |
fe1dc5a3 | 2517 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2518 | vni_t l3vni = 0; |
fe1dc5a3 | 2519 | struct ethaddr rmac; |
b67a60d2 | 2520 | struct in_addr originator_ip; |
fe1dc5a3 | 2521 | struct stream *s; |
0483af6e | 2522 | ifindex_t svi_ifindex; |
fe1dc5a3 MK |
2523 | |
2524 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
b67a60d2 | 2525 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2526 | s = zclient->ibuf; |
2527 | l3vni = stream_getl(s); | |
b67a60d2 | 2528 | if (cmd == ZEBRA_L3VNI_ADD) { |
fe1dc5a3 | 2529 | stream_get(&rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2530 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2531 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2532 | svi_ifindex = stream_getl(s); |
fe1dc5a3 | 2533 | |
0483af6e | 2534 | if (BGP_DEBUG(zebra, ZEBRA)) |
2535 | zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC %s filter %s svi-if %u", | |
2536 | vrf_id_to_name(vrf_id), l3vni, | |
2537 | prefix_mac2str(&rmac, buf, sizeof(buf)), | |
2538 | filter ? "prefix-routes-only" : "none", | |
2539 | svi_ifindex); | |
fe1dc5a3 | 2540 | |
c48d9f5f | 2541 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &rmac, originator_ip, |
0483af6e | 2542 | filter, svi_ifindex); |
2543 | } else { | |
2544 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2545 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2546 | vrf_id_to_name(vrf_id), l3vni); | |
2547 | ||
fe1dc5a3 | 2548 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2549 | } |
fe1dc5a3 MK |
2550 | |
2551 | return 0; | |
2552 | } | |
2553 | ||
d62a17ae | 2554 | static int bgp_zebra_process_local_vni(int command, struct zclient *zclient, |
2555 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 2556 | { |
d62a17ae | 2557 | struct stream *s; |
2558 | vni_t vni; | |
2559 | struct bgp *bgp; | |
a4d82a8a | 2560 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2561 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
d62a17ae | 2562 | |
2563 | s = zclient->ibuf; | |
2564 | vni = stream_getl(s); | |
29c53922 | 2565 | if (command == ZEBRA_VNI_ADD) { |
d62a17ae | 2566 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2567 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
2568 | } | |
2569 | ||
d62a17ae | 2570 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2571 | if (!bgp) | |
2572 | return 0; | |
2573 | ||
2574 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 MK |
2575 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
2576 | (command == ZEBRA_VNI_ADD) ? "add" : "del", | |
a4d82a8a PZ |
2577 | vrf_id_to_name(vrf_id), vni, |
2578 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2579 | |
2580 | if (command == ZEBRA_VNI_ADD) | |
2581 | return bgp_evpn_local_vni_add( | |
29c53922 MK |
2582 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
2583 | tenant_vrf_id); | |
d62a17ae | 2584 | else |
2585 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2586 | } |
2587 | ||
d62a17ae | 2588 | static int bgp_zebra_process_local_macip(int command, struct zclient *zclient, |
2589 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 2590 | { |
d62a17ae | 2591 | struct stream *s; |
2592 | vni_t vni; | |
2593 | struct bgp *bgp; | |
2594 | struct ethaddr mac; | |
2595 | struct ipaddr ip; | |
2596 | int ipa_len; | |
2597 | char buf[ETHER_ADDR_STRLEN]; | |
2598 | char buf1[INET6_ADDRSTRLEN]; | |
f07e1c99 | 2599 | uint8_t flags = 0; |
2600 | uint32_t seqnum = 0; | |
ec0ab544 | 2601 | int state = 0; |
d62a17ae | 2602 | |
2603 | memset(&ip, 0, sizeof(ip)); | |
2604 | s = zclient->ibuf; | |
2605 | vni = stream_getl(s); | |
28328ea9 | 2606 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2607 | ipa_len = stream_getl(s); |
2608 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2609 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2610 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 QY |
2611 | "%u:Recv MACIP %s with invalid IP addr length %d", |
2612 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
2613 | ipa_len); | |
d62a17ae | 2614 | return -1; |
2615 | } | |
2616 | ||
2617 | if (ipa_len) { | |
2618 | ip.ipa_type = | |
2619 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2620 | stream_get(&ip.ip.addr, s, ipa_len); | |
2621 | } | |
f07e1c99 | 2622 | if (command == ZEBRA_MACIP_ADD) { |
2623 | flags = stream_getc(s); | |
2624 | seqnum = stream_getl(s); | |
ec0ab544 AK |
2625 | } else { |
2626 | state = stream_getl(s); | |
f07e1c99 | 2627 | } |
d62a17ae | 2628 | |
2629 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2630 | if (!bgp) | |
2631 | return 0; | |
2632 | ||
2633 | if (BGP_DEBUG(zebra, ZEBRA)) | |
ec0ab544 | 2634 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u seq %u state %d", |
1a98c087 MK |
2635 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
2636 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), | |
ec0ab544 AK |
2637 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum, |
2638 | state); | |
d62a17ae | 2639 | |
2640 | if (command == ZEBRA_MACIP_ADD) | |
f07e1c99 | 2641 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
2642 | flags, seqnum); | |
d62a17ae | 2643 | else |
ec0ab544 | 2644 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
128ea8ab | 2645 | } |
6aeb9e78 | 2646 | |
a4d82a8a | 2647 | static void bgp_zebra_process_local_ip_prefix(int cmd, struct zclient *zclient, |
31310b25 MK |
2648 | zebra_size_t length, |
2649 | vrf_id_t vrf_id) | |
2650 | { | |
2651 | struct stream *s = NULL; | |
2652 | struct bgp *bgp_vrf = NULL; | |
2653 | struct prefix p; | |
2654 | char buf[PREFIX_STRLEN]; | |
2655 | ||
2656 | memset(&p, 0, sizeof(struct prefix)); | |
2657 | s = zclient->ibuf; | |
2658 | stream_get(&p, s, sizeof(struct prefix)); | |
2659 | ||
2660 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2661 | if (!bgp_vrf) | |
2662 | return; | |
2663 | ||
2664 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2665 | zlog_debug("Recv prefix %s %s on vrf %s", | |
2666 | prefix2str(&p, buf, sizeof(buf)), | |
2667 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
2668 | vrf_id_to_name(vrf_id)); | |
2669 | ||
2670 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2671 | ||
2672 | if (p.family == AF_INET) | |
d90b788e A |
2673 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2674 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 2675 | else |
d90b788e A |
2676 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2677 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2678 | |
2679 | } else { | |
2680 | if (p.family == AF_INET) | |
d90b788e A |
2681 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
2682 | SAFI_UNICAST); | |
31310b25 | 2683 | else |
d90b788e A |
2684 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
2685 | SAFI_UNICAST); | |
31310b25 MK |
2686 | } |
2687 | } | |
2688 | ||
955bfd98 PZ |
2689 | static void bgp_zebra_process_label_chunk( |
2690 | int cmd, | |
2691 | struct zclient *zclient, | |
2692 | zebra_size_t length, | |
2693 | vrf_id_t vrf_id) | |
2694 | { | |
2695 | struct stream *s = NULL; | |
2696 | uint8_t response_keep; | |
2697 | uint32_t first; | |
2698 | uint32_t last; | |
aec865e4 FR |
2699 | uint8_t proto; |
2700 | unsigned short instance; | |
955bfd98 PZ |
2701 | |
2702 | s = zclient->ibuf; | |
aec865e4 FR |
2703 | STREAM_GETC(s, proto); |
2704 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2705 | STREAM_GETC(s, response_keep); |
2706 | STREAM_GETL(s, first); | |
2707 | STREAM_GETL(s, last); | |
2708 | ||
aec865e4 | 2709 | if (zclient->redist_default != proto) { |
e50f7cfd | 2710 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2711 | proto); |
aec865e4 FR |
2712 | return; |
2713 | } | |
2714 | if (zclient->instance != instance) { | |
e50f7cfd | 2715 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2716 | proto); |
aec865e4 FR |
2717 | return; |
2718 | } | |
2719 | ||
955bfd98 PZ |
2720 | if (first > last || |
2721 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2722 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2723 | ||
e50f7cfd | 2724 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2725 | __func__, first, last); |
955bfd98 PZ |
2726 | return; |
2727 | } | |
2728 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2729 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2730 | first, last, response_keep); | |
2731 | } | |
2732 | ||
e70e9f8e | 2733 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2734 | |
2735 | stream_failure: /* for STREAM_GETX */ | |
2736 | return; | |
2737 | } | |
2738 | ||
342213ea DS |
2739 | extern struct zebra_privs_t bgpd_privs; |
2740 | ||
f533be73 | 2741 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2742 | { |
d62a17ae | 2743 | zclient_num_connects = 0; |
2744 | ||
2745 | /* Set default values. */ | |
26f63a1e | 2746 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2747 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2748 | zclient->zebra_connected = bgp_zebra_connected; |
2749 | zclient->router_id_update = bgp_router_id_update; | |
2750 | zclient->interface_add = bgp_interface_add; | |
2751 | zclient->interface_delete = bgp_interface_delete; | |
2752 | zclient->interface_address_add = bgp_interface_address_add; | |
2753 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2754 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2755 | zclient->interface_nbr_address_delete = | |
2756 | bgp_interface_nbr_address_delete; | |
2757 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2758 | zclient->redistribute_route_add = zebra_read_route; |
2759 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2760 | zclient->interface_up = bgp_interface_up; |
2761 | zclient->interface_down = bgp_interface_down; | |
d62a17ae | 2762 | zclient->nexthop_update = bgp_read_nexthop_update; |
2763 | zclient->import_check_update = bgp_read_import_check_update; | |
2764 | zclient->fec_update = bgp_read_fec_update; | |
50f74cf1 | 2765 | zclient->local_es_add = bgp_zebra_process_local_es; |
2766 | zclient->local_es_del = bgp_zebra_process_local_es; | |
d62a17ae | 2767 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
2768 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
2769 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2770 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2771 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2772 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2773 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2774 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2775 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
2776 | zclient->rule_notify_owner = rule_notify_owner; |
2777 | zclient->ipset_notify_owner = ipset_notify_owner; | |
2778 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 2779 | zclient->iptable_notify_owner = iptable_notify_owner; |
f533be73 | 2780 | zclient->instance = instance; |
718e3744 | 2781 | } |
bb86c601 | 2782 | |
d62a17ae | 2783 | void bgp_zebra_destroy(void) |
bb86c601 | 2784 | { |
d62a17ae | 2785 | if (zclient == NULL) |
2786 | return; | |
2787 | zclient_stop(zclient); | |
2788 | zclient_free(zclient); | |
2789 | zclient = NULL; | |
bb86c601 | 2790 | } |
afbb1c59 | 2791 | |
d62a17ae | 2792 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2793 | { |
d62a17ae | 2794 | return zclient_num_connects; |
afbb1c59 | 2795 | } |
30d50e6d | 2796 | |
6cfe5d15 PG |
2797 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
2798 | struct bgp_pbr_rule *pbr, | |
2799 | bool install) | |
30d50e6d PG |
2800 | { |
2801 | struct stream *s; | |
2802 | ||
6cfe5d15 | 2803 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 2804 | return; |
6cfe5d15 PG |
2805 | if (pbr && pbr->install_in_progress) |
2806 | return; | |
2807 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2808 | if (pbr) | |
2809 | zlog_debug("%s: table %d (ip rule) %d", | |
2810 | __PRETTY_FUNCTION__, | |
2811 | pbra->table_id, install); | |
2812 | else | |
2813 | zlog_debug("%s: table %d fwmark %d %d", | |
2814 | __PRETTY_FUNCTION__, | |
2815 | pbra->table_id, pbra->fwmark, install); | |
2816 | } | |
30d50e6d PG |
2817 | s = zclient->obuf; |
2818 | stream_reset(s); | |
2819 | ||
2820 | zclient_create_header(s, | |
2821 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
2822 | VRF_DEFAULT); | |
2823 | stream_putl(s, 1); /* send one pbr action */ | |
2824 | ||
6cfe5d15 | 2825 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
2826 | |
2827 | stream_putw_at(s, 0, stream_get_endp(s)); | |
6cfe5d15 PG |
2828 | if (!zclient_send_message(zclient) && install) { |
2829 | if (!pbr) | |
2830 | pbra->install_in_progress = true; | |
2831 | else | |
2832 | pbr->install_in_progress = true; | |
2833 | } | |
30d50e6d PG |
2834 | } |
2835 | ||
2836 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
2837 | { | |
2838 | struct stream *s; | |
2839 | ||
2840 | if (pbrim->install_in_progress) | |
2841 | return; | |
f0936054 | 2842 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2843 | zlog_debug("%s: name %s type %d %d, ID %u", |
f0936054 | 2844 | __PRETTY_FUNCTION__, |
88055124 PG |
2845 | pbrim->ipset_name, pbrim->type, |
2846 | install, pbrim->unique); | |
30d50e6d PG |
2847 | s = zclient->obuf; |
2848 | stream_reset(s); | |
2849 | ||
2850 | zclient_create_header(s, | |
2851 | install ? ZEBRA_IPSET_CREATE : | |
2852 | ZEBRA_IPSET_DESTROY, | |
2853 | VRF_DEFAULT); | |
2854 | ||
2855 | stream_putl(s, 1); /* send one pbr action */ | |
2856 | ||
2857 | bgp_encode_pbr_ipset_match(s, pbrim); | |
2858 | ||
2859 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2860 | if (!zclient_send_message(zclient) && install) | |
2861 | pbrim->install_in_progress = true; | |
2862 | } | |
2863 | ||
2864 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
2865 | bool install) | |
2866 | { | |
2867 | struct stream *s; | |
2868 | ||
2869 | if (pbrime->install_in_progress) | |
2870 | return; | |
f0936054 | 2871 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2872 | zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__, |
f0936054 | 2873 | pbrime->backpointer->ipset_name, |
88055124 | 2874 | pbrime->unique, install, pbrime->unique); |
30d50e6d PG |
2875 | s = zclient->obuf; |
2876 | stream_reset(s); | |
2877 | ||
2878 | zclient_create_header(s, | |
2879 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
2880 | ZEBRA_IPSET_ENTRY_DELETE, | |
2881 | VRF_DEFAULT); | |
2882 | ||
2883 | stream_putl(s, 1); /* send one pbr action */ | |
2884 | ||
2885 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
2886 | ||
2887 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2888 | if (!zclient_send_message(zclient) && install) | |
2889 | pbrime->install_in_progress = true; | |
2890 | } | |
c16a0a62 | 2891 | |
4762c213 PG |
2892 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s) |
2893 | { | |
2894 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2895 | struct bgp_pbr_interface_head *head; | |
2896 | struct bgp_pbr_interface *pbr_if; | |
2897 | struct interface *ifp; | |
2898 | ||
2899 | if (!bgp_pbr_cfg) | |
2900 | return; | |
2901 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2902 | ||
2903 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2904 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); | |
2905 | if (ifp) | |
2906 | stream_putl(s, ifp->ifindex); | |
2907 | } | |
2908 | } | |
2909 | ||
2910 | static int bgp_pbr_get_ifnumber(struct bgp *bgp) | |
2911 | { | |
2912 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2913 | struct bgp_pbr_interface_head *head; | |
2914 | struct bgp_pbr_interface *pbr_if; | |
2915 | int cnt = 0; | |
2916 | ||
2917 | if (!bgp_pbr_cfg) | |
2918 | return 0; | |
2919 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2920 | ||
2921 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2922 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) | |
2923 | cnt++; | |
2924 | } | |
2925 | return cnt; | |
2926 | } | |
2927 | ||
c16a0a62 PG |
2928 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
2929 | struct bgp_pbr_match *pbm, | |
2930 | bool install) | |
2931 | { | |
2932 | struct stream *s; | |
b5c40105 | 2933 | int ret = 0; |
4762c213 | 2934 | int nb_interface; |
c16a0a62 PG |
2935 | |
2936 | if (pbm->install_iptable_in_progress) | |
2937 | return; | |
f0936054 | 2938 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2939 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", |
f0936054 | 2940 | __PRETTY_FUNCTION__, pbm->ipset_name, |
88055124 PG |
2941 | pbm->type, pba->fwmark, install, |
2942 | pbm->unique2); | |
c16a0a62 PG |
2943 | s = zclient->obuf; |
2944 | stream_reset(s); | |
2945 | ||
2946 | zclient_create_header(s, | |
2947 | install ? ZEBRA_IPTABLE_ADD : | |
2948 | ZEBRA_IPTABLE_DELETE, | |
2949 | VRF_DEFAULT); | |
2950 | ||
2951 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
4762c213 PG |
2952 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp); |
2953 | stream_putl(s, nb_interface); | |
2954 | if (nb_interface) | |
2955 | bgp_encode_pbr_interface_list(pba->bgp, s); | |
c16a0a62 | 2956 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
2957 | ret = zclient_send_message(zclient); |
2958 | if (install) { | |
2959 | if (ret) | |
2960 | pba->refcnt++; | |
2961 | else | |
2962 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 2963 | } |
c16a0a62 | 2964 | } |
f7df1907 PG |
2965 | |
2966 | /* inject in table <table_id> a default route to: | |
2967 | * - if nexthop IP is present : to this nexthop | |
2968 | * - if vrf is different from local : to the matching VRF | |
2969 | */ | |
2970 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
2971 | afi_t afi, uint32_t table_id, bool announce) | |
2972 | { | |
2973 | struct zapi_nexthop *api_nh; | |
2974 | struct zapi_route api; | |
2975 | struct prefix p; | |
2976 | ||
2977 | if (!nh || nh->type != NEXTHOP_TYPE_IPV4 | |
2978 | || nh->vrf_id == VRF_UNKNOWN) | |
2979 | return; | |
2980 | memset(&p, 0, sizeof(struct prefix)); | |
2981 | /* default route */ | |
2982 | if (afi != AFI_IP) | |
2983 | return; | |
2984 | p.family = AF_INET; | |
2985 | memset(&api, 0, sizeof(api)); | |
2986 | api.vrf_id = bgp->vrf_id; | |
2987 | api.type = ZEBRA_ROUTE_BGP; | |
2988 | api.safi = SAFI_UNICAST; | |
2989 | api.prefix = p; | |
2990 | api.tableid = table_id; | |
2991 | api.nexthop_num = 1; | |
2992 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
2993 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
2994 | api_nh = &api.nexthops[0]; | |
2995 | ||
2996 | /* redirect IP */ | |
2997 | if (nh->gate.ipv4.s_addr) { | |
2998 | char buff[PREFIX_STRLEN]; | |
2999 | ||
3000 | api_nh->vrf_id = nh->vrf_id; | |
3001 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
3002 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
3003 | ||
3004 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
3005 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3006 | zlog_info("BGP: %s default route to %s table %d (redirect IP)", |
3007 | announce ? "adding" : "withdrawing", | |
f7df1907 PG |
3008 | buff, table_id); |
3009 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3010 | : ZEBRA_ROUTE_DELETE, | |
3011 | zclient, &api); | |
3012 | } else if (nh->vrf_id != bgp->vrf_id) { | |
3013 | struct vrf *vrf; | |
eb4244f8 | 3014 | struct interface *ifp; |
f7df1907 | 3015 | |
eb4244f8 | 3016 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
3017 | if (!vrf) |
3018 | return; | |
eb4244f8 PG |
3019 | /* create default route with interface <VRF> |
3020 | * with nexthop-vrf <VRF> | |
f7df1907 | 3021 | */ |
eb4244f8 PG |
3022 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
3023 | if (!ifp) | |
3024 | return; | |
3025 | api_nh->vrf_id = nh->vrf_id; | |
3026 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3027 | api_nh->ifindex = ifp->ifindex; | |
3028 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3029 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3030 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3031 | vrf->name, table_id); |
3032 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3033 | : ZEBRA_ROUTE_DELETE, | |
3034 | zclient, &api); | |
f7df1907 PG |
3035 | return; |
3036 | } | |
3037 | } |