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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. */ |
121f9dee | 86 | static int bgp_router_id_update(ZAPI_CALLBACK_ARGS) |
718e3744 | 87 | { |
d62a17ae | 88 | struct prefix router_id; |
718e3744 | 89 | |
d62a17ae | 90 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 91 | |
d62a17ae | 92 | if (BGP_DEBUG(zebra, ZEBRA)) { |
93 | char buf[PREFIX2STR_BUFFER]; | |
94 | prefix2str(&router_id, buf, sizeof(buf)); | |
95 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
96 | } | |
a39275d7 | 97 | |
d62a17ae | 98 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
99 | return 0; | |
718e3744 | 100 | } |
101 | ||
fb018d25 | 102 | /* Nexthop update message from zebra. */ |
121f9dee | 103 | static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS) |
fb018d25 | 104 | { |
121f9dee | 105 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 106 | return 0; |
078430f6 DS |
107 | } |
108 | ||
121f9dee | 109 | static int bgp_read_import_check_update(ZAPI_CALLBACK_ARGS) |
078430f6 | 110 | { |
121f9dee | 111 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 112 | return 0; |
fb018d25 DS |
113 | } |
114 | ||
4a04e5f7 | 115 | /* Set or clear interface on which unnumbered neighbor is configured. This |
116 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
117 | * interface. | |
118 | */ | |
d62a17ae | 119 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
120 | struct interface *upd_ifp) | |
4a04e5f7 | 121 | { |
d62a17ae | 122 | struct listnode *node, *nnode; |
123 | struct peer *peer; | |
124 | ||
125 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
126 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
127 | if (upd_ifp) { | |
128 | peer->ifp = upd_ifp; | |
129 | bgp_zebra_initiate_radv(bgp, peer); | |
130 | } else { | |
131 | bgp_zebra_terminate_radv(bgp, peer); | |
132 | peer->ifp = upd_ifp; | |
133 | } | |
134 | } | |
135 | } | |
4a04e5f7 | 136 | } |
137 | ||
d62a17ae | 138 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
139 | zebra_size_t length) | |
cd1964ff | 140 | { |
d62a17ae | 141 | bgp_parse_fec_update(); |
142 | return 0; | |
cd1964ff DS |
143 | } |
144 | ||
d62a17ae | 145 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 146 | { |
d62a17ae | 147 | struct listnode *node, *nnode; |
148 | struct peer *peer; | |
149 | ||
150 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
151 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
152 | && peer->status != Established) { | |
153 | if (peer_active(peer)) | |
154 | BGP_EVENT_ADD(peer, BGP_Stop); | |
155 | BGP_EVENT_ADD(peer, BGP_Start); | |
156 | } | |
157 | } | |
a80beece DS |
158 | } |
159 | ||
d62a17ae | 160 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 161 | { |
d62a17ae | 162 | struct listnode *node; |
163 | struct connected *connected; | |
164 | struct interface *ifp; | |
165 | struct prefix *p; | |
166 | ||
167 | /* Kick-off the FSM for any relevant peers only if there is a | |
168 | * valid local address on the interface. | |
169 | */ | |
170 | ifp = ifc->ifp; | |
171 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
172 | p = connected->address; | |
173 | if (p->family == AF_INET6 | |
174 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
175 | break; | |
176 | } | |
177 | if (!connected) | |
178 | return; | |
179 | ||
180 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
181 | } |
182 | ||
d62a17ae | 183 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
184 | int del) | |
a80beece | 185 | { |
d62a17ae | 186 | struct listnode *node, *nnode; |
187 | struct peer *peer; | |
188 | struct interface *ifp; | |
189 | ||
190 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
191 | if (peer->conf_if | |
192 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
193 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
194 | BGP_EVENT_ADD(peer, BGP_Stop); | |
195 | } | |
196 | } | |
197 | /* Free neighbor also, if we're asked to. */ | |
198 | if (del) { | |
199 | ifp = ifc->ifp; | |
200 | listnode_delete(ifp->nbr_connected, ifc); | |
201 | nbr_connected_free(ifc); | |
202 | } | |
a80beece DS |
203 | } |
204 | ||
3c3c3252 | 205 | static int bgp_ifp_destroy(struct interface *ifp) |
718e3744 | 206 | { |
d62a17ae | 207 | struct bgp *bgp; |
718e3744 | 208 | |
3c3c3252 | 209 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
a4499b83 | 210 | |
d62a17ae | 211 | if (BGP_DEBUG(zebra, ZEBRA)) |
3835984f | 212 | zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf_id, ifp->name); |
a39275d7 | 213 | |
85751d1d DS |
214 | if (bgp) |
215 | bgp_update_interface_nbrs(bgp, ifp, NULL); | |
64745052 | 216 | |
6a69ac51 DS |
217 | bgp_mac_del_mac_entry(ifp); |
218 | ||
d62a17ae | 219 | return 0; |
718e3744 | 220 | } |
221 | ||
ddbf3e60 | 222 | static int bgp_ifp_up(struct interface *ifp) |
718e3744 | 223 | { |
d62a17ae | 224 | struct connected *c; |
225 | struct nbr_connected *nc; | |
226 | struct listnode *node, *nnode; | |
227 | struct bgp *bgp; | |
6aeb9e78 | 228 | |
ddbf3e60 | 229 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 230 | |
6a69ac51 DS |
231 | bgp_mac_add_mac_entry(ifp); |
232 | ||
d62a17ae | 233 | if (BGP_DEBUG(zebra, ZEBRA)) |
ddbf3e60 | 234 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 235 | |
85751d1d DS |
236 | if (!bgp) |
237 | return 0; | |
238 | ||
d62a17ae | 239 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
240 | bgp_connected_add(bgp, c); | |
718e3744 | 241 | |
d62a17ae | 242 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
243 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 244 | |
d62a17ae | 245 | return 0; |
718e3744 | 246 | } |
247 | ||
b0b69e59 | 248 | static int bgp_ifp_down(struct interface *ifp) |
718e3744 | 249 | { |
d62a17ae | 250 | struct connected *c; |
251 | struct nbr_connected *nc; | |
252 | struct listnode *node, *nnode; | |
253 | struct bgp *bgp; | |
c19fe3c7 | 254 | struct peer *peer; |
6aeb9e78 | 255 | |
b0b69e59 | 256 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 257 | |
6a69ac51 DS |
258 | bgp_mac_del_mac_entry(ifp); |
259 | ||
d62a17ae | 260 | if (BGP_DEBUG(zebra, ZEBRA)) |
b0b69e59 | 261 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 262 | |
85751d1d DS |
263 | if (!bgp) |
264 | return 0; | |
265 | ||
d62a17ae | 266 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
267 | bgp_connected_delete(bgp, c); | |
718e3744 | 268 | |
d62a17ae | 269 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
270 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 271 | |
d62a17ae | 272 | /* Fast external-failover */ |
c19fe3c7 | 273 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 274 | |
d62a17ae | 275 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 276 | #if defined(HAVE_CUMULUS) |
d62a17ae | 277 | /* Take down directly connected EBGP peers as well as |
278 | * 1-hop BFD | |
279 | * tracked (directly connected) IBGP peers. | |
280 | */ | |
281 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1) | |
282 | && (!peer->bfd_info | |
283 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 284 | #else |
d62a17ae | 285 | /* Take down directly connected EBGP peers */ |
286 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
8c4f6381 | 287 | #endif |
d62a17ae | 288 | continue; |
718e3744 | 289 | |
d62a17ae | 290 | if (ifp == peer->nexthop.ifp) { |
291 | BGP_EVENT_ADD(peer, BGP_Stop); | |
292 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
293 | } | |
294 | } | |
295 | } | |
718e3744 | 296 | |
d62a17ae | 297 | return 0; |
718e3744 | 298 | } |
299 | ||
121f9dee | 300 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 301 | { |
d62a17ae | 302 | struct connected *ifc; |
2f9123e0 DS |
303 | struct bgp *bgp; |
304 | ||
305 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 306 | |
121f9dee | 307 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 308 | |
309 | if (ifc == NULL) | |
310 | return 0; | |
311 | ||
312 | if (bgp_debug_zebra(ifc->address)) { | |
313 | char buf[PREFIX2STR_BUFFER]; | |
314 | prefix2str(ifc->address, buf, sizeof(buf)); | |
315 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
316 | ifc->ifp->name, buf); | |
317 | } | |
318 | ||
85751d1d DS |
319 | if (!bgp) |
320 | return 0; | |
321 | ||
d62a17ae | 322 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 323 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 324 | |
d62a17ae | 325 | /* If we have learnt of any neighbors on this interface, |
326 | * check to kick off any BGP interface-based neighbors, | |
327 | * but only if this is a link-local address. | |
328 | */ | |
329 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
330 | && !list_isempty(ifc->ifp->nbr_connected)) | |
331 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
332 | } | |
333 | ||
334 | return 0; | |
718e3744 | 335 | } |
336 | ||
121f9dee | 337 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 338 | { |
d62a17ae | 339 | struct connected *ifc; |
340 | struct bgp *bgp; | |
6aeb9e78 | 341 | |
2f9123e0 | 342 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 343 | |
121f9dee | 344 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 345 | |
d62a17ae | 346 | if (ifc == NULL) |
347 | return 0; | |
718e3744 | 348 | |
d62a17ae | 349 | if (bgp_debug_zebra(ifc->address)) { |
350 | char buf[PREFIX2STR_BUFFER]; | |
351 | prefix2str(ifc->address, buf, sizeof(buf)); | |
352 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
353 | ifc->ifp->name, buf); | |
354 | } | |
a39275d7 | 355 | |
85751d1d | 356 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 357 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 358 | } |
718e3744 | 359 | |
d62a17ae | 360 | connected_free(ifc); |
718e3744 | 361 | |
d62a17ae | 362 | return 0; |
718e3744 | 363 | } |
364 | ||
121f9dee | 365 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 366 | { |
d62a17ae | 367 | struct nbr_connected *ifc = NULL; |
368 | struct bgp *bgp; | |
369 | ||
121f9dee | 370 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 371 | |
372 | if (ifc == NULL) | |
373 | return 0; | |
374 | ||
375 | if (bgp_debug_zebra(ifc->address)) { | |
376 | char buf[PREFIX2STR_BUFFER]; | |
377 | prefix2str(ifc->address, buf, sizeof(buf)); | |
378 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
379 | ifc->ifp->name, buf); | |
380 | } | |
381 | ||
382 | if (if_is_operative(ifc->ifp)) { | |
383 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
384 | if (bgp) | |
385 | bgp_nbr_connected_add(bgp, ifc); | |
386 | } | |
387 | ||
388 | return 0; | |
a80beece DS |
389 | } |
390 | ||
121f9dee | 391 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 392 | { |
d62a17ae | 393 | struct nbr_connected *ifc = NULL; |
394 | struct bgp *bgp; | |
6aeb9e78 | 395 | |
121f9dee | 396 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 397 | |
d62a17ae | 398 | if (ifc == NULL) |
399 | return 0; | |
a80beece | 400 | |
d62a17ae | 401 | if (bgp_debug_zebra(ifc->address)) { |
402 | char buf[PREFIX2STR_BUFFER]; | |
403 | prefix2str(ifc->address, buf, sizeof(buf)); | |
404 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
405 | ifc->ifp->name, buf); | |
406 | } | |
a80beece | 407 | |
d62a17ae | 408 | if (if_is_operative(ifc->ifp)) { |
409 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
410 | if (bgp) | |
411 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
412 | } | |
a80beece | 413 | |
d62a17ae | 414 | nbr_connected_free(ifc); |
a80beece | 415 | |
d62a17ae | 416 | return 0; |
a80beece DS |
417 | } |
418 | ||
bfcd43b2 | 419 | /* VRF update for an interface. */ |
121f9dee | 420 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 421 | { |
d62a17ae | 422 | struct interface *ifp; |
423 | vrf_id_t new_vrf_id; | |
424 | struct connected *c; | |
425 | struct nbr_connected *nc; | |
426 | struct listnode *node, *nnode; | |
427 | struct bgp *bgp; | |
c19fe3c7 | 428 | struct peer *peer; |
bfcd43b2 | 429 | |
d62a17ae | 430 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
431 | &new_vrf_id); | |
432 | if (!ifp) | |
433 | return 0; | |
bfcd43b2 | 434 | |
d62a17ae | 435 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
436 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
437 | ifp->name, new_vrf_id); | |
bfcd43b2 | 438 | |
d62a17ae | 439 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 440 | |
85751d1d DS |
441 | if (bgp) { |
442 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
443 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 444 | |
85751d1d DS |
445 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
446 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 447 | |
85751d1d DS |
448 | /* Fast external-failover */ |
449 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
450 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
451 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
452 | continue; | |
bfcd43b2 | 453 | |
85751d1d DS |
454 | if (ifp == peer->nexthop.ifp) |
455 | BGP_EVENT_ADD(peer, BGP_Stop); | |
456 | } | |
d62a17ae | 457 | } |
458 | } | |
bfcd43b2 | 459 | |
a36898e7 | 460 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 461 | |
d62a17ae | 462 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
463 | if (!bgp) | |
464 | return 0; | |
bfcd43b2 | 465 | |
d62a17ae | 466 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
467 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 468 | |
d62a17ae | 469 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
470 | bgp_nbr_connected_add(bgp, nc); | |
471 | return 0; | |
bfcd43b2 | 472 | } |
473 | ||
718e3744 | 474 | /* Zebra route add and delete treatment. */ |
121f9dee | 475 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 476 | { |
9de1f7ff | 477 | enum nexthop_types_t nhtype; |
74489921 RW |
478 | struct zapi_route api; |
479 | union g_addr nexthop; | |
9de1f7ff | 480 | ifindex_t ifindex; |
74489921 | 481 | int add, i; |
d62a17ae | 482 | struct bgp *bgp; |
483 | ||
484 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
485 | if (!bgp) | |
486 | return 0; | |
487 | ||
74489921 RW |
488 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
489 | return -1; | |
d62a17ae | 490 | |
74489921 RW |
491 | /* we completely ignore srcdest routes for now. */ |
492 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
493 | return 0; | |
d62a17ae | 494 | |
74489921 RW |
495 | /* ignore link-local address. */ |
496 | if (api.prefix.family == AF_INET6 | |
497 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
498 | return 0; | |
d62a17ae | 499 | |
74489921 RW |
500 | nexthop = api.nexthops[0].gate; |
501 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 502 | nhtype = api.nexthops[0].type; |
d62a17ae | 503 | |
121f9dee | 504 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 505 | if (add) { |
d62a17ae | 506 | /* |
507 | * The ADD message is actually an UPDATE and there is no | |
508 | * explicit DEL | |
509 | * for a prior redistributed route, if any. So, perform an | |
510 | * implicit | |
511 | * DEL processing for the same redistributed route from any | |
512 | * other | |
513 | * source type. | |
514 | */ | |
515 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
516 | if (i != api.type) | |
74489921 | 517 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 518 | api.instance); |
519 | } | |
520 | ||
521 | /* Now perform the add/update. */ | |
74489921 | 522 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
523 | nhtype, api.metric, api.type, api.instance, |
524 | api.tag); | |
d62a17ae | 525 | } else { |
74489921 RW |
526 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
527 | api.instance); | |
a39275d7 | 528 | } |
d62a17ae | 529 | |
74489921 RW |
530 | if (bgp_debug_zebra(&api.prefix)) { |
531 | char buf[2][PREFIX_STRLEN]; | |
532 | ||
533 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
77e62f2b | 534 | if (add) { |
535 | inet_ntop(api.prefix.family, &nexthop, buf[1], | |
536 | sizeof(buf[1])); | |
537 | zlog_debug( | |
538 | "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI, | |
539 | vrf_id, zebra_route_string(api.type), | |
540 | api.instance, buf[0], buf[1], nhtype, | |
541 | ifindex, api.metric, api.tag); | |
542 | } else { | |
543 | zlog_debug( | |
544 | "Rx route DEL VRF %u %s[%d] %s", | |
545 | vrf_id, zebra_route_string(api.type), | |
546 | api.instance, buf[0]); | |
547 | } | |
d62a17ae | 548 | } |
549 | ||
550 | return 0; | |
718e3744 | 551 | } |
6b0655a2 | 552 | |
d62a17ae | 553 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 554 | { |
f4e14fdb | 555 | struct vrf *vrf; |
d62a17ae | 556 | struct listnode *cnode; |
557 | struct interface *ifp; | |
558 | struct connected *connected; | |
559 | struct prefix_ipv4 p; | |
560 | struct prefix *cp; | |
561 | ||
f4e14fdb RW |
562 | vrf = vrf_lookup_by_id(vrf_id); |
563 | if (!vrf) | |
564 | return NULL; | |
565 | ||
d62a17ae | 566 | p.family = AF_INET; |
567 | p.prefix = *addr; | |
568 | p.prefixlen = IPV4_MAX_BITLEN; | |
569 | ||
451fda4f | 570 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 571 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
572 | cp = connected->address; | |
573 | ||
574 | if (cp->family == AF_INET) | |
575 | if (prefix_match(cp, (struct prefix *)&p)) | |
576 | return ifp; | |
577 | } | |
718e3744 | 578 | } |
d62a17ae | 579 | return NULL; |
718e3744 | 580 | } |
581 | ||
d62a17ae | 582 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 583 | { |
f4e14fdb | 584 | struct vrf *vrf; |
d62a17ae | 585 | struct listnode *cnode; |
586 | struct interface *ifp; | |
587 | struct connected *connected; | |
588 | struct prefix *cp; | |
589 | ||
f4e14fdb RW |
590 | vrf = vrf_lookup_by_id(vrf_id); |
591 | if (!vrf) | |
592 | return NULL; | |
593 | ||
451fda4f | 594 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 595 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
596 | cp = connected->address; | |
597 | ||
598 | if (cp->family == AF_INET) | |
599 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
600 | return ifp; | |
601 | } | |
718e3744 | 602 | } |
d62a17ae | 603 | return NULL; |
718e3744 | 604 | } |
605 | ||
d62a17ae | 606 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
607 | vrf_id_t vrf_id) | |
718e3744 | 608 | { |
f4e14fdb | 609 | struct vrf *vrf; |
d62a17ae | 610 | struct listnode *cnode; |
611 | struct interface *ifp; | |
612 | struct connected *connected; | |
613 | struct prefix_ipv6 p; | |
614 | struct prefix *cp; | |
615 | ||
f4e14fdb RW |
616 | vrf = vrf_lookup_by_id(vrf_id); |
617 | if (!vrf) | |
618 | return NULL; | |
619 | ||
d62a17ae | 620 | p.family = AF_INET6; |
621 | p.prefix = *addr; | |
622 | p.prefixlen = IPV6_MAX_BITLEN; | |
623 | ||
451fda4f | 624 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 625 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
626 | cp = connected->address; | |
627 | ||
628 | if (cp->family == AF_INET6) | |
629 | if (prefix_match(cp, (struct prefix *)&p)) { | |
630 | if (IN6_IS_ADDR_LINKLOCAL( | |
631 | &cp->u.prefix6)) { | |
632 | if (ifindex == ifp->ifindex) | |
633 | return ifp; | |
634 | } else | |
635 | return ifp; | |
636 | } | |
637 | } | |
718e3744 | 638 | } |
d62a17ae | 639 | return NULL; |
718e3744 | 640 | } |
641 | ||
d62a17ae | 642 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
643 | ifindex_t ifindex, 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_INET6) | |
660 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
661 | if (IN6_IS_ADDR_LINKLOCAL( | |
662 | &cp->u.prefix6)) { | |
663 | if (ifindex == ifp->ifindex) | |
664 | return ifp; | |
665 | } else | |
666 | return ifp; | |
667 | } | |
668 | } | |
718e3744 | 669 | } |
d62a17ae | 670 | return NULL; |
718e3744 | 671 | } |
672 | ||
d62a17ae | 673 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 674 | { |
d62a17ae | 675 | struct listnode *cnode; |
676 | struct connected *connected; | |
677 | struct prefix *cp; | |
678 | ||
679 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
680 | cp = connected->address; | |
681 | ||
682 | if (cp->family == AF_INET6) | |
683 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
684 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
685 | return 1; | |
686 | } | |
687 | } | |
688 | return 0; | |
718e3744 | 689 | } |
690 | ||
d62a17ae | 691 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 692 | { |
d62a17ae | 693 | struct listnode *cnode; |
694 | struct connected *connected; | |
695 | struct prefix *cp; | |
696 | ||
697 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
698 | cp = connected->address; | |
699 | ||
700 | if (cp->family == AF_INET6) | |
701 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
702 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
703 | return 1; | |
704 | } | |
705 | } | |
706 | return 0; | |
718e3744 | 707 | } |
718e3744 | 708 | |
d62a17ae | 709 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 710 | { |
d62a17ae | 711 | struct listnode *cnode; |
712 | struct connected *connected; | |
713 | struct prefix *cp; | |
714 | ||
715 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
716 | cp = connected->address; | |
717 | if ((cp->family == AF_INET) | |
718 | && !ipv4_martian(&(cp->u.prefix4))) { | |
719 | *addr = cp->u.prefix4; | |
720 | return 1; | |
721 | } | |
722 | } | |
723 | return 0; | |
6ee06fa9 PM |
724 | } |
725 | ||
17cdd31e DS |
726 | |
727 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
728 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 729 | { |
d62a17ae | 730 | int ret = 0; |
731 | struct interface *ifp = NULL; | |
732 | ||
733 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
734 | ||
735 | if (!local) | |
17cdd31e | 736 | return false; |
d62a17ae | 737 | if (!remote) |
17cdd31e | 738 | return false; |
d62a17ae | 739 | |
740 | if (local->sa.sa_family == AF_INET) { | |
741 | nexthop->v4 = local->sin.sin_addr; | |
742 | if (peer->update_if) | |
743 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 744 | peer->bgp->vrf_id); |
d62a17ae | 745 | else |
746 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
747 | peer->bgp->vrf_id); | |
718e3744 | 748 | } |
d62a17ae | 749 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 750 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 751 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
752 | if (peer->conf_if || peer->ifname) | |
753 | ifp = if_lookup_by_name(peer->conf_if | |
754 | ? peer->conf_if | |
755 | : peer->ifname, | |
a36898e7 | 756 | peer->bgp->vrf_id); |
d62a17ae | 757 | } else if (peer->update_if) |
758 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 759 | peer->bgp->vrf_id); |
d62a17ae | 760 | else |
761 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
762 | local->sin6.sin6_scope_id, | |
763 | peer->bgp->vrf_id); | |
718e3744 | 764 | } |
d62a17ae | 765 | |
17cdd31e DS |
766 | if (!ifp) { |
767 | /* | |
768 | * BGP views do not currently get proper data | |
769 | * from zebra( when attached ) to be able to | |
770 | * properly resolve nexthops, so give this | |
771 | * instance type a pass. | |
772 | */ | |
773 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
774 | return true; | |
775 | /* | |
776 | * If we have no interface data but we have established | |
777 | * some connection w/ zebra than something has gone | |
778 | * terribly terribly wrong here, so say this failed | |
779 | * If we do not any zebra connection then not | |
780 | * having a ifp pointer is ok. | |
781 | */ | |
782 | return zclient_num_connects ? false : true; | |
783 | } | |
d62a17ae | 784 | |
785 | nexthop->ifp = ifp; | |
786 | ||
787 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
788 | if (local->sa.sa_family == AF_INET) { | |
789 | /* IPv6 nexthop*/ | |
790 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
791 | ||
792 | if (!ret) { | |
793 | /* There is no global nexthop. Use link-local address as | |
794 | * both the | |
795 | * global and link-local nexthop. In this scenario, the | |
796 | * expectation | |
797 | * for interop is that the network admin would use a | |
798 | * route-map to | |
799 | * specify the global IPv6 nexthop. | |
800 | */ | |
801 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
802 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
803 | IPV6_MAX_BYTELEN); | |
804 | } else | |
805 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
806 | ||
807 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
808 | peer->shared_network = 1; | |
809 | else | |
810 | peer->shared_network = 0; | |
718e3744 | 811 | } |
718e3744 | 812 | |
d62a17ae | 813 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
814 | if (local->sa.sa_family == AF_INET6) { | |
815 | struct interface *direct = NULL; | |
816 | ||
817 | /* IPv4 nexthop. */ | |
818 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
819 | if (!ret && peer->local_id.s_addr) | |
820 | nexthop->v4 = peer->local_id; | |
821 | ||
822 | /* Global address*/ | |
823 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
824 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
825 | IPV6_MAX_BYTELEN); | |
826 | ||
827 | /* If directory connected set link-local address. */ | |
828 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
829 | remote->sin6.sin6_scope_id, | |
830 | peer->bgp->vrf_id); | |
831 | if (direct) | |
832 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
833 | } else | |
834 | /* Link-local address. */ | |
835 | { | |
836 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
837 | ||
838 | /* If there is no global address. Set link-local | |
839 | address as | |
840 | global. I know this break RFC specification... */ | |
841 | /* In this scenario, the expectation for interop is that | |
842 | * the | |
843 | * network admin would use a route-map to specify the | |
844 | * global | |
845 | * IPv6 nexthop. | |
846 | */ | |
847 | if (!ret) | |
848 | memcpy(&nexthop->v6_global, | |
849 | &local->sin6.sin6_addr, | |
850 | IPV6_MAX_BYTELEN); | |
851 | /* Always set the link-local address */ | |
852 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
853 | IPV6_MAX_BYTELEN); | |
854 | } | |
855 | ||
856 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
857 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
858 | remote->sin6.sin6_scope_id, | |
859 | peer->bgp->vrf_id)) | |
860 | peer->shared_network = 1; | |
861 | else | |
862 | peer->shared_network = 0; | |
863 | } | |
718e3744 | 864 | |
d62a17ae | 865 | /* KAME stack specific treatment. */ |
718e3744 | 866 | #ifdef KAME |
d62a17ae | 867 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
868 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
869 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
870 | } | |
871 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
872 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
873 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
874 | } | |
718e3744 | 875 | #endif /* KAME */ |
e33a4880 | 876 | |
d62a17ae | 877 | /* If we have identified the local interface, there is no error for now. |
878 | */ | |
17cdd31e | 879 | return true; |
718e3744 | 880 | } |
881 | ||
18ee8310 | 882 | static struct in6_addr * |
40381db7 | 883 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 884 | { |
d62a17ae | 885 | struct in6_addr *nexthop = NULL; |
886 | ||
887 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
888 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
889 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 890 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 891 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 892 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 893 | } |
d62a17ae | 894 | |
895 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
896 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
897 | || path->attr->mp_nexthop_len | |
898 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 899 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
900 | if (path->attr->mp_nexthop_prefer_global) { |
901 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 902 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 903 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 904 | } else { |
d62a17ae | 905 | /* Workaround for Cisco's nexthop bug. */ |
906 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 DS |
907 | &path->attr->mp_nexthop_global) |
908 | && path->peer->su_remote->sa.sa_family | |
59a0f1cb | 909 | == AF_INET6) { |
d62a17ae | 910 | nexthop = |
40381db7 | 911 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 912 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 913 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 914 | ->ifindex; |
77e62f2b | 915 | } else { |
40381db7 | 916 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 917 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 918 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 919 | } |
d62a17ae | 920 | } |
921 | } | |
922 | ||
923 | return nexthop; | |
73ac8160 DS |
924 | } |
925 | ||
d62a17ae | 926 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
40381db7 | 927 | struct bgp_path_info *path) |
73ac8160 | 928 | { |
b4cb15c6 DL |
929 | route_map_result_t ret; |
930 | ||
40381db7 DS |
931 | ret = route_map_apply(map, p, RMAP_BGP, path); |
932 | bgp_attr_flush(path->attr); | |
b4cb15c6 DL |
933 | |
934 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 935 | return 1; |
936 | ||
937 | if (bgp_debug_zebra(p)) { | |
938 | if (p->family == AF_INET) { | |
939 | char buf[2][INET_ADDRSTRLEN]; | |
940 | zlog_debug( | |
941 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
942 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
943 | sizeof(buf[0])), | |
944 | p->prefixlen, | |
40381db7 | 945 | inet_ntop(AF_INET, &path->attr->nexthop, buf[1], |
d62a17ae | 946 | sizeof(buf[1]))); |
947 | } | |
948 | if (p->family == AF_INET6) { | |
949 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 950 | ifindex_t ifindex; |
951 | struct in6_addr *nexthop; | |
952 | ||
40381db7 | 953 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 954 | zlog_debug( |
955 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
956 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
957 | sizeof(buf[0])), | |
958 | p->prefixlen, | |
77e62f2b | 959 | inet_ntop(AF_INET6, nexthop, |
d62a17ae | 960 | buf[1], sizeof(buf[1]))); |
961 | } | |
962 | } | |
963 | return 0; | |
73ac8160 DS |
964 | } |
965 | ||
b98f7728 PG |
966 | static struct thread *bgp_tm_thread_connect; |
967 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
968 | static bool bgp_tm_chunk_obtained; |
969 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
970 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 971 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
972 | |
973 | static int bgp_zebra_tm_connect(struct thread *t) | |
974 | { | |
975 | struct zclient *zclient; | |
976 | int delay = 10, ret = 0; | |
977 | ||
978 | zclient = THREAD_ARG(t); | |
979 | if (bgp_tm_status_connected && zclient->sock > 0) | |
980 | delay = 60; | |
981 | else { | |
982 | bgp_tm_status_connected = false; | |
983 | ret = tm_table_manager_connect(zclient); | |
984 | } | |
985 | if (ret < 0) { | |
b7cd3069 | 986 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
987 | bgp_tm_status_connected = false; |
988 | } else { | |
989 | if (!bgp_tm_status_connected) | |
990 | zlog_debug("Connecting to table manager. Success"); | |
991 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
992 | if (!bgp_tm_chunk_obtained) { |
993 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
994 | &bgp_tm_min, | |
6818e7e5 | 995 | &bgp_tm_max) >= 0) { |
31c28cd7 | 996 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
997 | /* parse non installed entries */ |
998 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
999 | } | |
31c28cd7 | 1000 | } |
b98f7728 PG |
1001 | } |
1002 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1003 | &bgp_tm_thread_connect); | |
1004 | return 0; | |
1005 | } | |
1006 | ||
6818e7e5 PG |
1007 | bool bgp_zebra_tm_chunk_obtained(void) |
1008 | { | |
1009 | return bgp_tm_chunk_obtained; | |
1010 | } | |
1011 | ||
31c28cd7 PG |
1012 | uint32_t bgp_zebra_tm_get_id(void) |
1013 | { | |
1014 | static int table_id; | |
1015 | ||
1016 | if (!bgp_tm_chunk_obtained) | |
1017 | return ++table_id; | |
1018 | return bgp_tm_min++; | |
1019 | } | |
1020 | ||
6818e7e5 | 1021 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1022 | { |
1023 | int delay = 1; | |
1024 | ||
1025 | /* if already set, do nothing | |
1026 | */ | |
1027 | if (bgp_tm_thread_connect != NULL) | |
1028 | return; | |
1029 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1030 | bgp_tm_chunk_obtained = false; |
1031 | bgp_tm_min = bgp_tm_max = 0; | |
1032 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1033 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1034 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1035 | &bgp_tm_thread_connect); | |
1036 | } | |
1037 | ||
1038 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1039 | uint32_t *start, uint32_t *end) | |
1040 | { | |
1041 | int ret; | |
1042 | ||
1043 | if (!bgp_tm_status_connected) | |
1044 | return -1; | |
1045 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1046 | if (ret < 0) { | |
e50f7cfd | 1047 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1048 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1049 | return -1; |
1050 | } | |
1051 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1052 | chunk_size, *start, *end); | |
1053 | return 0; | |
1054 | } | |
1055 | ||
77e62f2b | 1056 | static int update_ipv4nh_for_route_install(int nh_othervrf, |
e1e71450 | 1057 | struct bgp *nh_bgp, |
77e62f2b | 1058 | struct in_addr *nexthop, |
1059 | struct attr *attr, | |
1060 | bool is_evpn, | |
1061 | struct zapi_nexthop *api_nh) | |
1062 | { | |
1063 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1064 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1065 | |
1066 | /* Need to set fields appropriately for EVPN routes imported into | |
1067 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1068 | * connected routes leaked into a VRF. | |
1069 | */ | |
e1e71450 | 1070 | if (is_evpn) { |
77e62f2b | 1071 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
2b83602b | 1072 | api_nh->onlink = true; |
e1e71450 | 1073 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1074 | } else if (nh_othervrf && | |
77e62f2b | 1075 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
1076 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1077 | api_nh->ifindex = attr->nh_ifindex; | |
1078 | } else | |
1079 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1080 | ||
1081 | return 1; | |
1082 | } | |
1083 | ||
4b7e6066 | 1084 | static int |
e1e71450 | 1085 | update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1086 | struct in6_addr *nexthop, | |
40381db7 DS |
1087 | ifindex_t ifindex, struct bgp_path_info *pi, |
1088 | struct bgp_path_info *best_pi, bool is_evpn, | |
4b7e6066 | 1089 | struct zapi_nexthop *api_nh) |
77e62f2b | 1090 | { |
1091 | struct attr *attr; | |
1092 | ||
40381db7 | 1093 | attr = pi->attr; |
e1e71450 | 1094 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1095 | |
e1e71450 | 1096 | if (is_evpn) { |
77e62f2b | 1097 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
2b83602b | 1098 | api_nh->onlink = true; |
e1e71450 | 1099 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1100 | } else if (nh_othervrf) { | |
77e62f2b | 1101 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1102 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1103 | api_nh->ifindex = attr->nh_ifindex; | |
1104 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1105 | if (ifindex == 0) | |
1106 | return 0; | |
1107 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1108 | api_nh->ifindex = ifindex; | |
1109 | } else { | |
1110 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1111 | api_nh->ifindex = 0; | |
1112 | } | |
1113 | } else { | |
1114 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1115 | if (pi == best_pi |
1116 | && attr->mp_nexthop_len | |
1117 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1118 | if (pi->peer->nexthop.ifp) | |
1119 | ifindex = | |
1120 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1121 | if (!ifindex) { |
40381db7 DS |
1122 | if (pi->peer->conf_if) |
1123 | ifindex = pi->peer->ifp->ifindex; | |
1124 | else if (pi->peer->ifname) | |
77e62f2b | 1125 | ifindex = ifname2ifindex( |
40381db7 DS |
1126 | pi->peer->ifname, |
1127 | pi->peer->bgp->vrf_id); | |
1128 | else if (pi->peer->nexthop.ifp) | |
1129 | ifindex = | |
1130 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1131 | } |
1132 | ||
1133 | if (ifindex == 0) | |
1134 | return 0; | |
1135 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1136 | api_nh->ifindex = ifindex; | |
1137 | } else { | |
1138 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1139 | api_nh->ifindex = 0; | |
1140 | } | |
1141 | } | |
1142 | api_nh->gate.ipv6 = *nexthop; | |
1143 | ||
1144 | return 1; | |
1145 | } | |
1146 | ||
d62a17ae | 1147 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
4b7e6066 | 1148 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1149 | safi_t safi) |
718e3744 | 1150 | { |
9913029c RW |
1151 | struct zapi_route api; |
1152 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 1153 | int nh_family; |
a74e593b | 1154 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1155 | int has_valid_label = 0; |
d7c0a89a | 1156 | uint8_t distance; |
d62a17ae | 1157 | struct peer *peer; |
4b7e6066 | 1158 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1159 | uint32_t metric; |
b4cb15c6 | 1160 | struct attr local_attr; |
4b7e6066 DS |
1161 | struct bgp_path_info local_info; |
1162 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1163 | route_tag_t tag; |
1164 | mpls_label_t label; | |
ddb5b488 | 1165 | int nh_othervrf = 0; |
960035b2 | 1166 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1167 | bool is_evpn; |
77e62f2b | 1168 | int nh_updated; |
d62a17ae | 1169 | |
1170 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1171 | * know of this instance. | |
1172 | */ | |
1173 | if (!bgp_install_info_to_zebra(bgp)) | |
1174 | return; | |
1175 | ||
d62a17ae | 1176 | if (bgp->main_zebra_update_hold) |
1177 | return; | |
1178 | ||
960035b2 | 1179 | if (bgp_debug_zebra(p)) |
ba1976db | 1180 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1181 | |
d90b788e A |
1182 | if (safi == SAFI_FLOWSPEC) { |
1183 | bgp_pbr_update_entry(bgp, &rn->p, info, afi, safi, true); | |
1184 | return; | |
1185 | } | |
529efa23 | 1186 | |
ddb5b488 PZ |
1187 | /* |
1188 | * vrf leaking support (will have only one nexthop) | |
1189 | */ | |
1190 | if (info->extra && info->extra->bgp_orig) | |
1191 | nh_othervrf = 1; | |
1192 | ||
9913029c RW |
1193 | /* Make Zebra API structure. */ |
1194 | memset(&api, 0, sizeof(api)); | |
1195 | api.vrf_id = bgp->vrf_id; | |
1196 | api.type = ZEBRA_ROUTE_BGP; | |
1197 | api.safi = safi; | |
1198 | api.prefix = *p; | |
1199 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1200 | ||
d62a17ae | 1201 | peer = info->peer; |
1202 | ||
ddb5b488 PZ |
1203 | if (info->type == ZEBRA_ROUTE_BGP |
1204 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1205 | ||
1ec90b5e | 1206 | /* Obtain peer from parent */ |
1207 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1208 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1209 | ->peer; | |
ddb5b488 PZ |
1210 | } |
1211 | ||
d62a17ae | 1212 | tag = info->attr->tag; |
1213 | ||
88493076 | 1214 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1215 | is_evpn = is_route_parent_evpn(info); |
1216 | if (is_evpn) | |
90264d64 | 1217 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1218 | |
d62a17ae | 1219 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1220 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1221 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1222 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1223 | } |
a39275d7 | 1224 | |
d62a17ae | 1225 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1226 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1227 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1228 | ||
4e8b02f4 | 1229 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1230 | |
2ad4f093 RW |
1231 | /* Metric is currently based on the best-path only */ |
1232 | metric = info->attr->med; | |
18ee8310 | 1233 | for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { |
a74e593b RW |
1234 | if (valid_nh_count >= multipath_num) |
1235 | break; | |
1236 | ||
b4cb15c6 DL |
1237 | *mpinfo_cp = *mpinfo; |
1238 | ||
d0d695f4 RW |
1239 | /* Get nexthop address-family */ |
1240 | if (p->family == AF_INET | |
1241 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1242 | nh_family = AF_INET; | |
1243 | else if (p->family == AF_INET6 | |
1244 | || (p->family == AF_INET | |
1245 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1246 | nh_family = AF_INET6; | |
1247 | else | |
1248 | continue; | |
1249 | ||
1374aec9 | 1250 | api_nh = &api.nexthops[valid_nh_count]; |
2ad4f093 | 1251 | if (nh_family == AF_INET) { |
ddb5b488 | 1252 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1253 | if (mpinfo->extra) { |
1254 | zlog_debug( | |
1255 | "%s: p=%s, bgp_is_valid_label: %d", | |
1256 | __func__, buf_prefix, | |
1257 | bgp_is_valid_label( | |
1258 | &mpinfo->extra | |
1259 | ->label[0])); | |
1260 | } else { | |
1261 | zlog_debug( | |
1262 | "%s: p=%s, extra is NULL, no label", | |
1263 | __func__, buf_prefix); | |
1264 | } | |
1265 | } | |
1266 | ||
6c0a6053 | 1267 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1268 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1269 | apply doesn't modify the BGP route info. */ |
1270 | local_attr = *mpinfo->attr; | |
1271 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1272 | } |
b4cb15c6 | 1273 | |
ddb5b488 | 1274 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1275 | if (!bgp_table_map_apply( |
d62a17ae | 1276 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1277 | mpinfo_cp)) |
1278 | continue; | |
1279 | ||
1280 | /* metric/tag is only allowed to be | |
1281 | * overridden on 1st nexthop */ | |
1282 | if (mpinfo == info) { | |
1283 | metric = mpinfo_cp->attr->med; | |
1284 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1285 | } |
b4cb15c6 | 1286 | } |
d62a17ae | 1287 | |
77e62f2b | 1288 | nh_updated = update_ipv4nh_for_route_install( |
1289 | nh_othervrf, | |
e1e71450 | 1290 | nh_othervrf ? |
1291 | info->extra->bgp_orig : bgp, | |
77e62f2b | 1292 | &mpinfo_cp->attr->nexthop, |
1293 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1294 | } else { |
f220da99 | 1295 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1296 | struct in6_addr *nexthop; |
9913029c | 1297 | |
6c0a6053 | 1298 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1299 | /* Copy info and attributes, so the route-map |
1300 | apply doesn't modify the BGP route info. */ | |
1301 | local_attr = *mpinfo->attr; | |
1302 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1303 | } |
1304 | ||
d62a17ae | 1305 | if (bgp->table_map[afi][safi].name) { |
1306 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1307 | apply doesn't modify the BGP route info. */ |
1308 | local_attr = *mpinfo->attr; | |
1309 | mpinfo_cp->attr = &local_attr; | |
1310 | ||
1311 | if (!bgp_table_map_apply( | |
d62a17ae | 1312 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1313 | mpinfo_cp)) |
1314 | continue; | |
1315 | ||
1316 | /* metric/tag is only allowed to be | |
1317 | * overridden on 1st nexthop */ | |
1318 | if (mpinfo == info) { | |
1319 | metric = mpinfo_cp->attr->med; | |
1320 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1321 | } |
b4cb15c6 | 1322 | } |
18ee8310 DS |
1323 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1324 | &ifindex); | |
77e62f2b | 1325 | nh_updated = update_ipv6nh_for_route_install( |
e1e71450 | 1326 | nh_othervrf, nh_othervrf ? |
1327 | info->extra->bgp_orig : bgp, | |
1328 | nexthop, ifindex, | |
77e62f2b | 1329 | mpinfo, info, is_evpn, api_nh); |
2ad4f093 | 1330 | } |
d62a17ae | 1331 | |
77e62f2b | 1332 | /* Did we get proper nexthop info to update zebra? */ |
1333 | if (!nh_updated) | |
1334 | continue; | |
1335 | ||
a4d82a8a PZ |
1336 | if (mpinfo->extra |
1337 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1338 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1339 | has_valid_label = 1; |
b57ba6d2 | 1340 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1341 | |
2ad4f093 RW |
1342 | api_nh->label_num = 1; |
1343 | api_nh->labels[0] = label; | |
d62a17ae | 1344 | } |
22e63104 | 1345 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1346 | sizeof(struct ethaddr)); | |
2ad4f093 RW |
1347 | valid_nh_count++; |
1348 | } | |
d62a17ae | 1349 | |
77e62f2b | 1350 | |
a89b49cc | 1351 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1352 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1353 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1354 | |
5cc347c4 DS |
1355 | /* |
1356 | * When we create an aggregate route we must also | |
1357 | * install a Null0 route in the RIB, so overwrite | |
1358 | * what was written into api with a blackhole route | |
1359 | */ | |
1360 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1361 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1362 | else | |
2ad4f093 | 1363 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1364 | |
2ad4f093 RW |
1365 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1366 | api.metric = metric; | |
d62a17ae | 1367 | |
2ad4f093 RW |
1368 | if (tag) { |
1369 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1370 | api.tag = tag; | |
1371 | } | |
d62a17ae | 1372 | |
2ad4f093 RW |
1373 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1374 | if (distance) { | |
1375 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1376 | api.distance = distance; | |
1377 | } | |
d62a17ae | 1378 | |
2ad4f093 RW |
1379 | if (bgp_debug_zebra(p)) { |
1380 | char prefix_buf[PREFIX_STRLEN]; | |
1381 | char nh_buf[INET6_ADDRSTRLEN]; | |
1382 | char label_buf[20]; | |
1383 | int i; | |
1384 | ||
1385 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1386 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1387 | " count %d", | |
1388 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1389 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1390 | for (i = 0; i < api.nexthop_num; i++) { | |
1391 | api_nh = &api.nexthops[i]; | |
1392 | ||
1ee069db CS |
1393 | switch (api_nh->type) { |
1394 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1395 | nh_buf[0] = '\0'; |
1ee069db CS |
1396 | break; |
1397 | case NEXTHOP_TYPE_IPV4: | |
1398 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1399 | nh_family = AF_INET; | |
77e62f2b | 1400 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1401 | sizeof(nh_buf)); | |
1ee069db CS |
1402 | break; |
1403 | case NEXTHOP_TYPE_IPV6: | |
1404 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1405 | nh_family = AF_INET6; | |
1406 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1407 | sizeof(nh_buf)); | |
1408 | break; | |
1409 | case NEXTHOP_TYPE_BLACKHOLE: | |
1410 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1411 | break; | |
1412 | default: | |
1413 | /* Note: add new nexthop case */ | |
1414 | assert(0); | |
1415 | break; | |
77e62f2b | 1416 | } |
2ad4f093 RW |
1417 | |
1418 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1419 | if (has_valid_label |
1420 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1421 | sprintf(label_buf, "label %u", |
1422 | api_nh->labels[0]); | |
77e62f2b | 1423 | zlog_debug(" nhop [%d]: %s if %u VRF %u %s", |
1424 | i + 1, nh_buf, api_nh->ifindex, | |
1425 | api_nh->vrf_id, label_buf); | |
d62a17ae | 1426 | } |
1427 | } | |
2ad4f093 | 1428 | |
960035b2 PZ |
1429 | if (bgp_debug_zebra(p)) { |
1430 | int recursion_flag = 0; | |
1431 | ||
1432 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1433 | recursion_flag = 1; | |
1434 | ||
1435 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1436 | __func__, buf_prefix, | |
1437 | (recursion_flag ? "" : "NOT ")); | |
1438 | } | |
2ad4f093 RW |
1439 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1440 | : ZEBRA_ROUTE_DELETE, | |
1441 | zclient, &api); | |
718e3744 | 1442 | } |
1443 | ||
73ac8160 | 1444 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1445 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1446 | { |
d62a17ae | 1447 | struct bgp_node *rn; |
1448 | struct bgp_table *table; | |
40381db7 | 1449 | struct bgp_path_info *pi; |
d62a17ae | 1450 | |
1451 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1452 | * know of this instance. | |
1453 | */ | |
1454 | if (!bgp_install_info_to_zebra(bgp)) | |
1455 | return; | |
1456 | ||
1457 | table = bgp->rib[afi][safi]; | |
1458 | if (!table) | |
1459 | return; | |
1460 | ||
1461 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
6f94b685 | 1462 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 | 1463 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1464 | |
40381db7 DS |
1465 | (pi->type == ZEBRA_ROUTE_BGP |
1466 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1467 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1468 | |
40381db7 | 1469 | bgp_zebra_announce(rn, &rn->p, pi, bgp, afi, |
d62a17ae | 1470 | safi); |
73ac8160 DS |
1471 | } |
1472 | ||
4b7e6066 | 1473 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1474 | struct bgp *bgp, safi_t safi) |
718e3744 | 1475 | { |
2ad4f093 | 1476 | struct zapi_route api; |
f7df1907 | 1477 | struct peer *peer; |
ddb5b488 | 1478 | |
d62a17ae | 1479 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1480 | * know of this instance. | |
1481 | */ | |
568e10ca | 1482 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1483 | return; |
1484 | ||
f7df1907 PG |
1485 | if (safi == SAFI_FLOWSPEC) { |
1486 | peer = info->peer; | |
d90b788e A |
1487 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1488 | return; | |
f7df1907 | 1489 | } |
529efa23 | 1490 | |
2ad4f093 | 1491 | memset(&api, 0, sizeof(api)); |
568e10ca | 1492 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1493 | api.type = ZEBRA_ROUTE_BGP; |
1494 | api.safi = safi; | |
1495 | api.prefix = *p; | |
d62a17ae | 1496 | |
88493076 | 1497 | /* If the route's source is EVPN, flag as such. */ |
1498 | if (is_route_parent_evpn(info)) | |
90264d64 | 1499 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1500 | |
2ad4f093 RW |
1501 | if (bgp_debug_zebra(p)) { |
1502 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1503 | |
2ad4f093 | 1504 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1505 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1506 | } |
d62a17ae | 1507 | |
2ad4f093 | 1508 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1509 | } |
56c1f7d8 | 1510 | |
d7c0a89a QY |
1511 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1512 | unsigned short instance) | |
7c8ff89e | 1513 | { |
d62a17ae | 1514 | struct list *red_list; |
1515 | struct listnode *node; | |
1516 | struct bgp_redist *red; | |
7c8ff89e | 1517 | |
d62a17ae | 1518 | red_list = bgp->redist[afi][type]; |
1519 | if (!red_list) | |
1520 | return (NULL); | |
7c8ff89e | 1521 | |
d62a17ae | 1522 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1523 | if (red->instance == instance) | |
1524 | return red; | |
7c8ff89e | 1525 | |
d62a17ae | 1526 | return NULL; |
7c8ff89e DS |
1527 | } |
1528 | ||
d7c0a89a QY |
1529 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1530 | unsigned short instance) | |
7c8ff89e | 1531 | { |
d62a17ae | 1532 | struct list *red_list; |
1533 | struct bgp_redist *red; | |
7c8ff89e | 1534 | |
d62a17ae | 1535 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1536 | if (red) | |
1537 | return red; | |
7c8ff89e | 1538 | |
d62a17ae | 1539 | if (!bgp->redist[afi][type]) |
1540 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1541 | |
d62a17ae | 1542 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1543 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1544 | red->instance = instance; |
7c8ff89e | 1545 | |
d62a17ae | 1546 | listnode_add(red_list, red); |
7c8ff89e | 1547 | |
d62a17ae | 1548 | return red; |
7c8ff89e DS |
1549 | } |
1550 | ||
d7c0a89a QY |
1551 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1552 | unsigned short instance) | |
7c8ff89e | 1553 | { |
d62a17ae | 1554 | struct bgp_redist *red; |
1555 | ||
1556 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1557 | ||
1558 | if (red) { | |
1559 | listnode_delete(bgp->redist[afi][type], red); | |
1560 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1561 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1562 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1563 | } |
7c8ff89e | 1564 | } |
6b0655a2 | 1565 | |
718e3744 | 1566 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1567 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1568 | unsigned short instance, bool changed) |
718e3744 | 1569 | { |
e923dd62 | 1570 | /* If redistribute options are changed call |
1571 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1572 | * the routes | |
1573 | */ | |
1574 | if (changed) | |
1575 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1576 | |
d62a17ae | 1577 | /* Return if already redistribute flag is set. */ |
1578 | if (instance) { | |
1579 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1580 | instance)) | |
1581 | return CMD_WARNING; | |
718e3744 | 1582 | |
d62a17ae | 1583 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1584 | } else { | |
1585 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1586 | return CMD_WARNING; | |
7076bb2f | 1587 | |
65efcfce | 1588 | #if ENABLE_BGP_VNC |
f920dd6d | 1589 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1590 | vnc_export_bgp_enable( |
1591 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1592 | } | |
65efcfce LB |
1593 | #endif |
1594 | ||
d62a17ae | 1595 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1596 | } | |
718e3744 | 1597 | |
ea12cf11 DS |
1598 | /* |
1599 | * Don't try to register if we're not connected to Zebra or Zebra | |
1600 | * doesn't know of this instance. | |
1601 | * | |
1602 | * When we come up later well resend if needed. | |
d62a17ae | 1603 | */ |
1604 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1605 | return CMD_SUCCESS; |
a39275d7 | 1606 | |
d62a17ae | 1607 | if (BGP_DEBUG(zebra, ZEBRA)) |
1608 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1609 | bgp->vrf_id, afi, zebra_route_string(type), | |
1610 | instance); | |
518f0eb1 | 1611 | |
d62a17ae | 1612 | /* Send distribute add message to zebra. */ |
1613 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1614 | instance, bgp->vrf_id); | |
718e3744 | 1615 | |
d62a17ae | 1616 | return CMD_SUCCESS; |
718e3744 | 1617 | } |
1618 | ||
d62a17ae | 1619 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1620 | unsigned short instance) |
518f0eb1 | 1621 | { |
d62a17ae | 1622 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1623 | * know of this instance. | |
1624 | */ | |
1625 | if (!bgp_install_info_to_zebra(bgp)) | |
1626 | return -1; | |
1627 | ||
1628 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1629 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1630 | bgp->vrf_id, afi, zebra_route_string(type), | |
1631 | instance); | |
1632 | ||
1633 | /* Send distribute add message to zebra. */ | |
1634 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1635 | instance, bgp->vrf_id); | |
1636 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1637 | instance, bgp->vrf_id); | |
1638 | ||
1639 | return 0; | |
518f0eb1 DS |
1640 | } |
1641 | ||
718e3744 | 1642 | /* Redistribute with route-map specification. */ |
1de27621 DA |
1643 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1644 | struct route_map *route_map) | |
718e3744 | 1645 | { |
d62a17ae | 1646 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1647 | return 0; | |
718e3744 | 1648 | |
0a22ddfb | 1649 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1650 | /* Decrement the count for existing routemap and |
1651 | * increment the count for new route map. | |
1652 | */ | |
1653 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1654 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1655 | red->rmap.map = route_map; |
b4897fa5 | 1656 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1657 | |
d62a17ae | 1658 | return 1; |
718e3744 | 1659 | } |
1660 | ||
1661 | /* Redistribute with metric specification. */ | |
d62a17ae | 1662 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
d7c0a89a | 1663 | afi_t afi, int type, uint32_t metric) |
718e3744 | 1664 | { |
d62a17ae | 1665 | struct bgp_node *rn; |
40381db7 | 1666 | struct bgp_path_info *pi; |
d62a17ae | 1667 | |
1668 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1669 | return 0; | |
1670 | ||
1671 | red->redist_metric_flag = 1; | |
1672 | red->redist_metric = metric; | |
1673 | ||
1674 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1675 | rn = bgp_route_next(rn)) { | |
6f94b685 | 1676 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 DS |
1677 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1678 | && pi->type == type | |
1679 | && pi->instance == red->instance) { | |
d62a17ae | 1680 | struct attr *old_attr; |
1681 | struct attr new_attr; | |
1682 | ||
40381db7 | 1683 | bgp_attr_dup(&new_attr, pi->attr); |
d62a17ae | 1684 | new_attr.med = red->redist_metric; |
40381db7 DS |
1685 | old_attr = pi->attr; |
1686 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1687 | bgp_attr_unintern(&old_attr); |
1688 | ||
40381db7 | 1689 | bgp_path_info_set_flag(rn, pi, |
18ee8310 | 1690 | BGP_PATH_ATTR_CHANGED); |
d62a17ae | 1691 | bgp_process(bgp, rn, afi, SAFI_UNICAST); |
1692 | } | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | return 1; | |
718e3744 | 1697 | } |
1698 | ||
1699 | /* Unset redistribution. */ | |
d62a17ae | 1700 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1701 | unsigned short instance) |
718e3744 | 1702 | { |
d62a17ae | 1703 | struct bgp_redist *red; |
1704 | ||
1705 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1706 | if (!red) | |
1707 | return CMD_SUCCESS; | |
1708 | ||
1709 | /* Return if zebra connection is disabled. */ | |
1710 | if (instance) { | |
1711 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1712 | instance)) | |
1713 | return CMD_WARNING; | |
1714 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1715 | } else { | |
1716 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1717 | return CMD_WARNING; | |
1718 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1719 | } | |
718e3744 | 1720 | |
65efcfce | 1721 | |
d62a17ae | 1722 | if (bgp_install_info_to_zebra(bgp)) { |
1723 | /* Send distribute delete message to zebra. */ | |
1724 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1725 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1726 | bgp->vrf_id, afi, zebra_route_string(type), | |
1727 | instance); | |
1728 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1729 | type, instance, bgp->vrf_id); | |
1730 | } | |
1731 | ||
1732 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1733 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1734 | ||
1735 | return CMD_SUCCESS; | |
718e3744 | 1736 | } |
1737 | ||
6aeb9e78 | 1738 | /* Unset redistribution. */ |
d62a17ae | 1739 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1740 | unsigned short instance) |
6aeb9e78 | 1741 | { |
d62a17ae | 1742 | struct bgp_redist *red; |
6aeb9e78 | 1743 | |
ddb5b488 PZ |
1744 | /* |
1745 | * vnc and vpn->vrf checks must be before red check because | |
1746 | * they operate within bgpd irrespective of zebra connection | |
1747 | * status. red lookup fails if there is no zebra connection. | |
1748 | */ | |
1749 | #if ENABLE_BGP_VNC | |
f920dd6d | 1750 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
1751 | vnc_export_bgp_disable(bgp, afi); |
1752 | } | |
1753 | #endif | |
ddb5b488 | 1754 | |
d62a17ae | 1755 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1756 | if (!red) | |
1757 | return CMD_SUCCESS; | |
6aeb9e78 | 1758 | |
d62a17ae | 1759 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1760 | |
d62a17ae | 1761 | /* Unset route-map. */ |
0a22ddfb | 1762 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1763 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 1764 | red->rmap.name = NULL; |
1765 | red->rmap.map = NULL; | |
6aeb9e78 | 1766 | |
d62a17ae | 1767 | /* Unset metric. */ |
1768 | red->redist_metric_flag = 0; | |
1769 | red->redist_metric = 0; | |
6aeb9e78 | 1770 | |
d62a17ae | 1771 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1772 | |
d62a17ae | 1773 | return CMD_SUCCESS; |
6aeb9e78 DS |
1774 | } |
1775 | ||
fc2408ec DS |
1776 | void bgp_redistribute_redo(struct bgp *bgp) |
1777 | { | |
1778 | afi_t afi; | |
1779 | int i; | |
1780 | struct list *red_list; | |
1781 | struct listnode *node; | |
1782 | struct bgp_redist *red; | |
1783 | ||
1784 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
1785 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
1786 | ||
1787 | red_list = bgp->redist[afi][i]; | |
1788 | if (!red_list) | |
1789 | continue; | |
1790 | ||
1791 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1792 | bgp_redistribute_resend(bgp, afi, i, | |
1793 | red->instance); | |
1794 | } | |
1795 | } | |
1796 | } | |
1797 | } | |
1798 | ||
401d56cc DS |
1799 | /* Unset redistribute vrf bitmap during triggers like |
1800 | restart networking or delete VRFs */ | |
1801 | void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) | |
eb117f29 | 1802 | { |
d62a17ae | 1803 | int i; |
1804 | afi_t afi; | |
1805 | ||
1806 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1807 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
7e20406f | 1808 | if (vrf_bitmap_check(zclient->redist[afi][i], |
401d56cc | 1809 | old_vrf_id)) |
d62a17ae | 1810 | vrf_bitmap_unset(zclient->redist[afi][i], |
1811 | old_vrf_id); | |
d62a17ae | 1812 | return; |
eb117f29 SK |
1813 | } |
1814 | ||
d62a17ae | 1815 | void bgp_zclient_reset(void) |
718e3744 | 1816 | { |
d62a17ae | 1817 | zclient_reset(zclient); |
718e3744 | 1818 | } |
1819 | ||
ad4cbda1 | 1820 | /* Register this instance with Zebra. Invoked upon connect (for |
1821 | * default instance) and when other VRFs are learnt (or created and | |
1822 | * already learnt). | |
1823 | */ | |
d62a17ae | 1824 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1825 | { |
d62a17ae | 1826 | /* Don't try to register if we're not connected to Zebra */ |
1827 | if (!zclient || zclient->sock < 0) | |
1828 | return; | |
ad4cbda1 | 1829 | |
d62a17ae | 1830 | if (BGP_DEBUG(zebra, ZEBRA)) |
1831 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1832 | |
d62a17ae | 1833 | /* Register for router-id, interfaces, redistributed routes. */ |
1834 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1835 | |
e2f3a930 T |
1836 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
1837 | if (bgp->advertise_all_vni) | |
d62a17ae | 1838 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1839 | |
1840 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1841 | } |
1842 | ||
1843 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1844 | * being deleted (default or VRF) and it is already registered. | |
1845 | */ | |
d62a17ae | 1846 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1847 | { |
d62a17ae | 1848 | /* Don't try to deregister if we're not connected to Zebra */ |
1849 | if (zclient->sock < 0) | |
1850 | return; | |
ad4cbda1 | 1851 | |
d62a17ae | 1852 | if (BGP_DEBUG(zebra, ZEBRA)) |
1853 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1854 | |
e2f3a930 T |
1855 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
1856 | if (bgp->advertise_all_vni) | |
d62a17ae | 1857 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1858 | |
d62a17ae | 1859 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1860 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1861 | } |
1862 | ||
d62a17ae | 1863 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1864 | { |
d62a17ae | 1865 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1866 | |
d62a17ae | 1867 | /* Don't try to initiate if we're not connected to Zebra */ |
1868 | if (zclient->sock < 0) | |
1869 | return; | |
4a04e5f7 | 1870 | |
d62a17ae | 1871 | if (BGP_DEBUG(zebra, ZEBRA)) |
1872 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1873 | peer->host); | |
4a04e5f7 | 1874 | |
d62a17ae | 1875 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1876 | ra_interval); | |
4a04e5f7 | 1877 | } |
1878 | ||
d62a17ae | 1879 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1880 | { |
d62a17ae | 1881 | /* Don't try to terminate if we're not connected to Zebra */ |
1882 | if (zclient->sock < 0) | |
1883 | return; | |
4a04e5f7 | 1884 | |
d62a17ae | 1885 | if (BGP_DEBUG(zebra, ZEBRA)) |
1886 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1887 | peer->host); | |
4a04e5f7 | 1888 | |
d62a17ae | 1889 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1890 | } |
1891 | ||
31310b25 MK |
1892 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1893 | { | |
1894 | struct stream *s = NULL; | |
1895 | ||
1896 | /* Check socket. */ | |
1897 | if (!zclient || zclient->sock < 0) | |
1898 | return 0; | |
1899 | ||
1900 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1901 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1902 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1903 | zlog_debug("%s: No zebra instance to talk to, cannot advertise subnet", | |
1904 | __PRETTY_FUNCTION__); | |
31310b25 | 1905 | return 0; |
bb4ef1ae | 1906 | } |
31310b25 MK |
1907 | |
1908 | s = zclient->obuf; | |
1909 | stream_reset(s); | |
1910 | ||
1911 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1912 | stream_putc(s, advertise); | |
1913 | stream_put3(s, vni); | |
1914 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1915 | ||
1916 | return zclient_send_message(zclient); | |
1917 | } | |
1918 | ||
a8016157 CS |
1919 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
1920 | { | |
1921 | struct stream *s = NULL; | |
1922 | ||
1923 | /* Check socket. */ | |
1924 | if (!zclient || zclient->sock < 0) | |
1925 | return 0; | |
1926 | ||
1927 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1928 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1929 | return 0; | |
1930 | ||
1931 | s = zclient->obuf; | |
1932 | stream_reset(s); | |
1933 | ||
1934 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
1935 | stream_putc(s, advertise); | |
1936 | stream_putl(s, vni); | |
1937 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1938 | ||
1939 | return zclient_send_message(zclient); | |
1940 | } | |
1941 | ||
1a98c087 MK |
1942 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1943 | { | |
1944 | struct stream *s = NULL; | |
1945 | ||
1946 | /* Check socket. */ | |
1947 | if (!zclient || zclient->sock < 0) | |
1948 | return 0; | |
1949 | ||
1950 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1951 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1952 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1953 | zlog_debug("%s: No zebra instance to talk to, not installing gw_macip", | |
1954 | __PRETTY_FUNCTION__); | |
1a98c087 | 1955 | return 0; |
bb4ef1ae | 1956 | } |
1a98c087 MK |
1957 | |
1958 | s = zclient->obuf; | |
1959 | stream_reset(s); | |
1960 | ||
1961 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
1962 | stream_putc(s, advertise); | |
cc6d5476 | 1963 | stream_putl(s, vni); |
1a98c087 MK |
1964 | stream_putw_at(s, 0, stream_get_endp(s)); |
1965 | ||
1966 | return zclient_send_message(zclient); | |
1967 | } | |
1968 | ||
fd069644 DS |
1969 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
1970 | enum vxlan_flood_control flood_ctrl) | |
1971 | { | |
1972 | struct stream *s; | |
1973 | ||
1974 | /* Check socket. */ | |
1975 | if (!zclient || zclient->sock < 0) | |
1976 | return 0; | |
1977 | ||
1978 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1979 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1980 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1981 | zlog_debug("%s: No zebra instance to talk to, not installing all vni", | |
1982 | __PRETTY_FUNCTION__); | |
fd069644 | 1983 | return 0; |
bb4ef1ae | 1984 | } |
fd069644 DS |
1985 | |
1986 | s = zclient->obuf; | |
1987 | stream_reset(s); | |
1988 | ||
1989 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
1990 | stream_putc(s, flood_ctrl); | |
1991 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1992 | ||
1993 | return zclient_send_message(zclient); | |
1994 | } | |
1995 | ||
d62a17ae | 1996 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 1997 | { |
d62a17ae | 1998 | struct stream *s; |
7724c0a1 | 1999 | |
d62a17ae | 2000 | /* Check socket. */ |
2001 | if (!zclient || zclient->sock < 0) | |
2002 | return 0; | |
7724c0a1 | 2003 | |
d62a17ae | 2004 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2005 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2006 | return 0; | |
7724c0a1 | 2007 | |
d62a17ae | 2008 | s = zclient->obuf; |
2009 | stream_reset(s); | |
7724c0a1 | 2010 | |
d62a17ae | 2011 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2012 | stream_putc(s, advertise); | |
fbac9605 DS |
2013 | /* Also inform current BUM handling setting. This is really |
2014 | * relevant only when 'advertise' is set. | |
2015 | */ | |
fd069644 | 2016 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2017 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2018 | |
d62a17ae | 2019 | return zclient_send_message(zclient); |
7724c0a1 | 2020 | } |
2021 | ||
0b9d9cd0 CS |
2022 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2023 | { | |
2024 | struct stream *s; | |
2025 | ||
2026 | /* Check socket. */ | |
2027 | if (!zclient || zclient->sock < 0) | |
2028 | return 0; | |
2029 | ||
2030 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2031 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2032 | return 0; | |
2033 | ||
2034 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2035 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2036 | bgp->evpn_info->dup_addr_detect ? | |
2037 | "enable" : "disable", | |
2038 | bgp->evpn_info->dad_max_moves, | |
2039 | bgp->evpn_info->dad_time, | |
2040 | bgp->evpn_info->dad_freeze ? | |
2041 | "enable" : "disable", | |
2042 | bgp->evpn_info->dad_freeze_time); | |
2043 | ||
2044 | s = zclient->obuf; | |
2045 | stream_reset(s); | |
2046 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2047 | bgp->vrf_id); | |
2048 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2049 | stream_putl(s, bgp->evpn_info->dad_time); | |
2050 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2051 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2052 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2053 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2054 | ||
2055 | return zclient_send_message(zclient); | |
2056 | } | |
2057 | ||
121f9dee | 2058 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2059 | { |
2060 | uint32_t seqno, priority, unique; | |
2061 | enum zapi_rule_notify_owner note; | |
2062 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2063 | struct bgp_pbr_rule *bgp_pbr = NULL; |
30d50e6d PG |
2064 | ifindex_t ifi; |
2065 | ||
2066 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
2067 | &ifi, ¬e)) | |
2068 | return -1; | |
2069 | ||
70eabd12 | 2070 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2071 | if (!bgp_pbra) { |
ffee150e PG |
2072 | /* look in bgp pbr rule */ |
2073 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2074 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2075 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2076 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
2077 | __PRETTY_FUNCTION__, unique); | |
2078 | return 0; | |
2079 | } | |
30d50e6d PG |
2080 | } |
2081 | ||
2082 | switch (note) { | |
2083 | case ZAPI_RULE_FAIL_INSTALL: | |
2084 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2085 | zlog_debug("%s: Received RULE_FAIL_INSTALL", | |
2086 | __PRETTY_FUNCTION__); | |
ffee150e PG |
2087 | if (bgp_pbra) { |
2088 | bgp_pbra->installed = false; | |
2089 | bgp_pbra->install_in_progress = false; | |
2090 | } else { | |
2091 | bgp_pbr->installed = false; | |
2092 | bgp_pbr->install_in_progress = false; | |
2093 | } | |
30d50e6d PG |
2094 | break; |
2095 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2096 | if (bgp_pbra) { |
2097 | bgp_pbra->installed = true; | |
2098 | bgp_pbra->install_in_progress = false; | |
2099 | } else { | |
ce3c0614 PG |
2100 | struct bgp_path_info *path; |
2101 | struct bgp_path_info_extra *extra; | |
2102 | ||
ffee150e PG |
2103 | bgp_pbr->installed = true; |
2104 | bgp_pbr->install_in_progress = false; | |
2105 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2106 | /* link bgp_info to bgp_pbr */ |
2107 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2108 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2109 | listnode_add_force(&extra->bgp_fs_iprule, |
2110 | bgp_pbr); | |
ffee150e | 2111 | } |
30d50e6d PG |
2112 | if (BGP_DEBUG(zebra, ZEBRA)) |
2113 | zlog_debug("%s: Received RULE_INSTALLED", | |
2114 | __PRETTY_FUNCTION__); | |
2115 | break; | |
f18a08f5 | 2116 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2117 | case ZAPI_RULE_REMOVED: |
2118 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2119 | zlog_debug("%s: Received RULE REMOVED", | |
2120 | __PRETTY_FUNCTION__); | |
2121 | break; | |
2122 | } | |
2123 | ||
2124 | return 0; | |
2125 | } | |
2126 | ||
121f9dee | 2127 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2128 | { |
2129 | uint32_t unique; | |
2130 | enum zapi_ipset_notify_owner note; | |
2131 | struct bgp_pbr_match *bgp_pbim; | |
2132 | ||
2133 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2134 | &unique, | |
2135 | ¬e)) | |
2136 | return -1; | |
2137 | ||
2138 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2139 | if (!bgp_pbim) { | |
2140 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2141 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
82e194ed | 2142 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2143 | return 0; |
2144 | } | |
2145 | ||
2146 | switch (note) { | |
2147 | case ZAPI_IPSET_FAIL_INSTALL: | |
2148 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2149 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", | |
2150 | __PRETTY_FUNCTION__); | |
2151 | bgp_pbim->installed = false; | |
2152 | bgp_pbim->install_in_progress = false; | |
2153 | break; | |
2154 | case ZAPI_IPSET_INSTALLED: | |
2155 | bgp_pbim->installed = true; | |
2156 | bgp_pbim->install_in_progress = false; | |
2157 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2158 | zlog_debug("%s: Received IPSET_INSTALLED", | |
2159 | __PRETTY_FUNCTION__); | |
2160 | break; | |
f18a08f5 | 2161 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2162 | case ZAPI_IPSET_REMOVED: |
2163 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2164 | zlog_debug("%s: Received IPSET REMOVED", | |
2165 | __PRETTY_FUNCTION__); | |
2166 | break; | |
2167 | } | |
2168 | ||
2169 | return 0; | |
2170 | } | |
2171 | ||
121f9dee | 2172 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2173 | { |
2174 | uint32_t unique; | |
2175 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2176 | enum zapi_ipset_entry_notify_owner note; | |
2177 | struct bgp_pbr_match_entry *bgp_pbime; | |
2178 | ||
2179 | if (!zapi_ipset_entry_notify_decode( | |
2180 | zclient->ibuf, | |
2181 | &unique, | |
2182 | ipset_name, | |
2183 | ¬e)) | |
2184 | return -1; | |
2185 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2186 | ipset_name, | |
2187 | unique); | |
2188 | if (!bgp_pbime) { | |
2189 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2190 | zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)", |
82e194ed | 2191 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2192 | return 0; |
2193 | } | |
2194 | ||
2195 | switch (note) { | |
2196 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2197 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2198 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
2199 | __PRETTY_FUNCTION__); | |
2200 | bgp_pbime->installed = false; | |
2201 | bgp_pbime->install_in_progress = false; | |
2202 | break; | |
2203 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2204 | { |
9b6d8fcf | 2205 | struct bgp_path_info *path; |
4b7e6066 DS |
2206 | struct bgp_path_info_extra *extra; |
2207 | ||
2208 | bgp_pbime->installed = true; | |
2209 | bgp_pbime->install_in_progress = false; | |
2210 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2211 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
2212 | __PRETTY_FUNCTION__); | |
9b6d8fcf DS |
2213 | /* link bgp_path_info to bpme */ |
2214 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2215 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2216 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2217 | } |
30d50e6d | 2218 | break; |
f18a08f5 | 2219 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2220 | case ZAPI_IPSET_ENTRY_REMOVED: |
2221 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2222 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
2223 | __PRETTY_FUNCTION__); | |
2224 | break; | |
2225 | } | |
2226 | return 0; | |
2227 | } | |
2228 | ||
121f9dee | 2229 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2230 | { |
2231 | uint32_t unique; | |
2232 | enum zapi_iptable_notify_owner note; | |
2233 | struct bgp_pbr_match *bgpm; | |
2234 | ||
2235 | if (!zapi_iptable_notify_decode( | |
2236 | zclient->ibuf, | |
2237 | &unique, | |
2238 | ¬e)) | |
2239 | return -1; | |
2240 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2241 | if (!bgpm) { | |
2242 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed PG |
2243 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
2244 | __PRETTY_FUNCTION__, note, unique); | |
c16a0a62 PG |
2245 | return 0; |
2246 | } | |
2247 | switch (note) { | |
2248 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2249 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2250 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
2251 | __PRETTY_FUNCTION__); | |
2252 | bgpm->installed_in_iptable = false; | |
2253 | bgpm->install_iptable_in_progress = false; | |
2254 | break; | |
2255 | case ZAPI_IPTABLE_INSTALLED: | |
2256 | bgpm->installed_in_iptable = true; | |
2257 | bgpm->install_iptable_in_progress = false; | |
2258 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2259 | zlog_debug("%s: Received IPTABLE_INSTALLED", | |
2260 | __PRETTY_FUNCTION__); | |
a6b07429 | 2261 | bgpm->action->refcnt++; |
c16a0a62 | 2262 | break; |
f18a08f5 | 2263 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2264 | case ZAPI_IPTABLE_REMOVED: |
2265 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2266 | zlog_debug("%s: Received IPTABLE REMOVED", | |
2267 | __PRETTY_FUNCTION__); | |
2268 | break; | |
2269 | } | |
2270 | return 0; | |
2271 | } | |
2272 | ||
6cfe5d15 PG |
2273 | /* this function is used to forge ip rule, |
2274 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2275 | * - or for sample ip rule cmd |
6cfe5d15 | 2276 | */ |
30d50e6d | 2277 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2278 | struct bgp_pbr_action *pbra, |
2279 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2280 | { |
6cfe5d15 | 2281 | struct prefix pfx; |
30d50e6d PG |
2282 | |
2283 | stream_putl(s, 0); /* seqno unused */ | |
8112a7a0 PG |
2284 | if (pbr) |
2285 | stream_putl(s, pbr->priority); | |
2286 | else | |
2287 | stream_putl(s, 0); | |
2288 | /* ruleno unused - priority change | |
2289 | * ruleno permits distinguishing various FS PBR entries | |
2290 | * - FS PBR entries based on ipset/iptables | |
2291 | * - FS PBR entries based on iprule | |
2292 | * the latter may contain default routing information injected by FS | |
2293 | */ | |
6cfe5d15 PG |
2294 | if (pbr) |
2295 | stream_putl(s, pbr->unique); | |
2296 | else | |
2297 | stream_putl(s, pbra->unique); | |
2298 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) | |
2299 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2300 | else { | |
2301 | memset(&pfx, 0, sizeof(pfx)); | |
2302 | pfx.family = AF_INET; | |
2303 | } | |
2304 | stream_putc(s, pfx.family); | |
2305 | stream_putc(s, pfx.prefixlen); | |
2306 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2307 | |
2308 | stream_putw(s, 0); /* src port */ | |
2309 | ||
6cfe5d15 PG |
2310 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2311 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2312 | else { | |
2313 | memset(&pfx, 0, sizeof(pfx)); | |
2314 | pfx.family = AF_INET; | |
2315 | } | |
2316 | stream_putc(s, pfx.family); | |
2317 | stream_putc(s, pfx.prefixlen); | |
2318 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2319 | |
2320 | stream_putw(s, 0); /* dst port */ | |
2321 | ||
6cfe5d15 PG |
2322 | /* if pbr present, fwmark is not used */ |
2323 | if (pbr) | |
2324 | stream_putl(s, 0); | |
2325 | else | |
2326 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d PG |
2327 | |
2328 | stream_putl(s, pbra->table_id); | |
2329 | ||
2330 | stream_putl(s, 0); /* ifindex unused */ | |
2331 | } | |
2332 | ||
2333 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2334 | struct bgp_pbr_match *pbim) | |
2335 | { | |
2336 | stream_putl(s, pbim->unique); | |
2337 | stream_putl(s, pbim->type); | |
2338 | ||
2339 | stream_put(s, pbim->ipset_name, | |
2340 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2341 | } |
2342 | ||
2343 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2344 | struct bgp_pbr_match_entry *pbime) | |
2345 | { | |
2346 | stream_putl(s, pbime->unique); | |
2347 | /* check that back pointer is not null */ | |
2348 | stream_put(s, pbime->backpointer->ipset_name, | |
2349 | ZEBRA_IPSET_NAME_SIZE); | |
2350 | ||
2351 | stream_putc(s, pbime->src.family); | |
2352 | stream_putc(s, pbime->src.prefixlen); | |
2353 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2354 | ||
2355 | stream_putc(s, pbime->dst.family); | |
2356 | stream_putc(s, pbime->dst.prefixlen); | |
2357 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2358 | |
2359 | stream_putw(s, pbime->src_port_min); | |
2360 | stream_putw(s, pbime->src_port_max); | |
2361 | stream_putw(s, pbime->dst_port_min); | |
2362 | stream_putw(s, pbime->dst_port_max); | |
2363 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2364 | } |
2365 | ||
c16a0a62 PG |
2366 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2367 | struct bgp_pbr_action *bpa, | |
2368 | struct bgp_pbr_match *pbm) | |
2369 | { | |
2370 | stream_putl(s, pbm->unique2); | |
2371 | ||
2372 | stream_putl(s, pbm->type); | |
2373 | ||
2374 | stream_putl(s, pbm->flags); | |
2375 | ||
2376 | /* TODO: correlate with what is contained | |
2377 | * into bgp_pbr_action. | |
2378 | * currently only forward supported | |
2379 | */ | |
2380 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2381 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2382 | else | |
2383 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2384 | stream_putl(s, bpa->fwmark); | |
2385 | stream_put(s, pbm->ipset_name, | |
2386 | ZEBRA_IPSET_NAME_SIZE); | |
83360720 PG |
2387 | stream_putw(s, pbm->pkt_len_min); |
2388 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2389 | stream_putw(s, pbm->tcp_flags); |
2390 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2391 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2392 | stream_putc(s, pbm->fragment); |
f449d223 | 2393 | stream_putc(s, pbm->protocol); |
c16a0a62 PG |
2394 | } |
2395 | ||
ad4cbda1 | 2396 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2397 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2398 | { |
d62a17ae | 2399 | struct bgp *bgp; |
7076bb2f | 2400 | |
d62a17ae | 2401 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2402 | |
d62a17ae | 2403 | /* At this point, we may or may not have BGP instances configured, but |
2404 | * we're only interested in the default VRF (others wouldn't have learnt | |
2405 | * the VRF from Zebra yet.) | |
2406 | */ | |
2407 | bgp = bgp_get_default(); | |
2408 | if (!bgp) | |
2409 | return; | |
ad4cbda1 | 2410 | |
d62a17ae | 2411 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2412 | |
d62a17ae | 2413 | /* Send the client registration */ |
0945d5ed | 2414 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, bgp->vrf_id); |
2376c3f2 | 2415 | |
955bfd98 | 2416 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2417 | bgp_lp_event_zebra_up(); |
955bfd98 | 2418 | |
d62a17ae | 2419 | /* TODO - What if we have peers and networks configured, do we have to |
2420 | * kick-start them? | |
2421 | */ | |
7076bb2f FL |
2422 | } |
2423 | ||
121f9dee | 2424 | static int bgp_zebra_process_local_es(ZAPI_CALLBACK_ARGS) |
50f74cf1 | 2425 | { |
2426 | esi_t esi; | |
2427 | struct bgp *bgp = NULL; | |
2428 | struct stream *s = NULL; | |
2429 | char buf[ESI_STR_LEN]; | |
2430 | char buf1[INET6_ADDRSTRLEN]; | |
2431 | struct ipaddr originator_ip; | |
2432 | ||
2433 | memset(&esi, 0, sizeof(esi_t)); | |
2434 | memset(&originator_ip, 0, sizeof(struct ipaddr)); | |
2435 | ||
2436 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2437 | if (!bgp) | |
2438 | return 0; | |
2439 | ||
2440 | s = zclient->ibuf; | |
2441 | stream_get(&esi, s, sizeof(esi_t)); | |
2442 | stream_get(&originator_ip, s, sizeof(struct ipaddr)); | |
2443 | ||
2444 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2445 | zlog_debug("Rx %s ESI %s originator-ip %s", | |
2446 | (cmd == ZEBRA_LOCAL_ES_ADD) ? "add" : "del", | |
2447 | esi_to_str(&esi, buf, sizeof(buf)), | |
2448 | ipaddr2str(&originator_ip, buf1, sizeof(buf1))); | |
2449 | ||
2450 | if (cmd == ZEBRA_LOCAL_ES_ADD) | |
2451 | bgp_evpn_local_es_add(bgp, &esi, &originator_ip); | |
2452 | else | |
2453 | bgp_evpn_local_es_del(bgp, &esi, &originator_ip); | |
2454 | return 0; | |
2455 | } | |
2456 | ||
121f9dee | 2457 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2458 | { |
c48d9f5f | 2459 | int filter = 0; |
fe1dc5a3 | 2460 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2461 | vni_t l3vni = 0; |
fe1dc5a3 | 2462 | struct ethaddr rmac; |
b67a60d2 | 2463 | struct in_addr originator_ip; |
fe1dc5a3 | 2464 | struct stream *s; |
0483af6e | 2465 | ifindex_t svi_ifindex; |
fe1dc5a3 MK |
2466 | |
2467 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
b67a60d2 | 2468 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2469 | s = zclient->ibuf; |
2470 | l3vni = stream_getl(s); | |
b67a60d2 | 2471 | if (cmd == ZEBRA_L3VNI_ADD) { |
fe1dc5a3 | 2472 | stream_get(&rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2473 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2474 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2475 | svi_ifindex = stream_getl(s); |
fe1dc5a3 | 2476 | |
0483af6e | 2477 | if (BGP_DEBUG(zebra, ZEBRA)) |
2478 | zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC %s filter %s svi-if %u", | |
2479 | vrf_id_to_name(vrf_id), l3vni, | |
2480 | prefix_mac2str(&rmac, buf, sizeof(buf)), | |
2481 | filter ? "prefix-routes-only" : "none", | |
2482 | svi_ifindex); | |
fe1dc5a3 | 2483 | |
c48d9f5f | 2484 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &rmac, originator_ip, |
0483af6e | 2485 | filter, svi_ifindex); |
2486 | } else { | |
2487 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2488 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2489 | vrf_id_to_name(vrf_id), l3vni); | |
2490 | ||
fe1dc5a3 | 2491 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2492 | } |
fe1dc5a3 MK |
2493 | |
2494 | return 0; | |
2495 | } | |
2496 | ||
121f9dee | 2497 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2498 | { |
d62a17ae | 2499 | struct stream *s; |
2500 | vni_t vni; | |
2501 | struct bgp *bgp; | |
a4d82a8a | 2502 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2503 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 2504 | struct in_addr mcast_grp = {INADDR_ANY}; |
d62a17ae | 2505 | |
2506 | s = zclient->ibuf; | |
2507 | vni = stream_getl(s); | |
121f9dee | 2508 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 2509 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 2510 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 2511 | mcast_grp.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2512 | } |
2513 | ||
d62a17ae | 2514 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2515 | if (!bgp) | |
2516 | return 0; | |
2517 | ||
2518 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 | 2519 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
121f9dee | 2520 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
a4d82a8a PZ |
2521 | vrf_id_to_name(vrf_id), vni, |
2522 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2523 | |
121f9dee | 2524 | if (cmd == ZEBRA_VNI_ADD) |
d62a17ae | 2525 | return bgp_evpn_local_vni_add( |
29c53922 | 2526 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
76d07c7a | 2527 | tenant_vrf_id, mcast_grp); |
d62a17ae | 2528 | else |
2529 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2530 | } |
2531 | ||
121f9dee | 2532 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2533 | { |
d62a17ae | 2534 | struct stream *s; |
2535 | vni_t vni; | |
2536 | struct bgp *bgp; | |
2537 | struct ethaddr mac; | |
2538 | struct ipaddr ip; | |
2539 | int ipa_len; | |
2540 | char buf[ETHER_ADDR_STRLEN]; | |
2541 | char buf1[INET6_ADDRSTRLEN]; | |
f07e1c99 | 2542 | uint8_t flags = 0; |
2543 | uint32_t seqnum = 0; | |
ec0ab544 | 2544 | int state = 0; |
d62a17ae | 2545 | |
2546 | memset(&ip, 0, sizeof(ip)); | |
2547 | s = zclient->ibuf; | |
2548 | vni = stream_getl(s); | |
28328ea9 | 2549 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2550 | ipa_len = stream_getl(s); |
2551 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2552 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2553 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 2554 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 2555 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 2556 | ipa_len); |
d62a17ae | 2557 | return -1; |
2558 | } | |
2559 | ||
2560 | if (ipa_len) { | |
2561 | ip.ipa_type = | |
2562 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2563 | stream_get(&ip.ip.addr, s, ipa_len); | |
2564 | } | |
121f9dee | 2565 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 2566 | flags = stream_getc(s); |
2567 | seqnum = stream_getl(s); | |
ec0ab544 AK |
2568 | } else { |
2569 | state = stream_getl(s); | |
f07e1c99 | 2570 | } |
d62a17ae | 2571 | |
2572 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2573 | if (!bgp) | |
2574 | return 0; | |
2575 | ||
2576 | if (BGP_DEBUG(zebra, ZEBRA)) | |
ec0ab544 | 2577 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u seq %u state %d", |
121f9dee | 2578 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1a98c087 | 2579 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), |
ec0ab544 AK |
2580 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum, |
2581 | state); | |
d62a17ae | 2582 | |
121f9dee | 2583 | if (cmd == ZEBRA_MACIP_ADD) |
f07e1c99 | 2584 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
2585 | flags, seqnum); | |
d62a17ae | 2586 | else |
ec0ab544 | 2587 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
128ea8ab | 2588 | } |
6aeb9e78 | 2589 | |
121f9dee | 2590 | static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
2591 | { |
2592 | struct stream *s = NULL; | |
2593 | struct bgp *bgp_vrf = NULL; | |
2594 | struct prefix p; | |
2595 | char buf[PREFIX_STRLEN]; | |
2596 | ||
2597 | memset(&p, 0, sizeof(struct prefix)); | |
2598 | s = zclient->ibuf; | |
2599 | stream_get(&p, s, sizeof(struct prefix)); | |
2600 | ||
2601 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2602 | if (!bgp_vrf) | |
2603 | return; | |
2604 | ||
2605 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2606 | zlog_debug("Recv prefix %s %s on vrf %s", | |
2607 | prefix2str(&p, buf, sizeof(buf)), | |
2608 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
2609 | vrf_id_to_name(vrf_id)); | |
2610 | ||
2611 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2612 | ||
2613 | if (p.family == AF_INET) | |
d90b788e A |
2614 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2615 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 2616 | else |
d90b788e A |
2617 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2618 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2619 | |
2620 | } else { | |
2621 | if (p.family == AF_INET) | |
d90b788e A |
2622 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
2623 | SAFI_UNICAST); | |
31310b25 | 2624 | else |
d90b788e A |
2625 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
2626 | SAFI_UNICAST); | |
31310b25 MK |
2627 | } |
2628 | } | |
2629 | ||
121f9dee | 2630 | static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
2631 | { |
2632 | struct stream *s = NULL; | |
2633 | uint8_t response_keep; | |
2634 | uint32_t first; | |
2635 | uint32_t last; | |
aec865e4 FR |
2636 | uint8_t proto; |
2637 | unsigned short instance; | |
955bfd98 PZ |
2638 | |
2639 | s = zclient->ibuf; | |
aec865e4 FR |
2640 | STREAM_GETC(s, proto); |
2641 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2642 | STREAM_GETC(s, response_keep); |
2643 | STREAM_GETL(s, first); | |
2644 | STREAM_GETL(s, last); | |
2645 | ||
aec865e4 | 2646 | if (zclient->redist_default != proto) { |
e50f7cfd | 2647 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2648 | proto); |
aec865e4 FR |
2649 | return; |
2650 | } | |
2651 | if (zclient->instance != instance) { | |
e50f7cfd | 2652 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2653 | proto); |
aec865e4 FR |
2654 | return; |
2655 | } | |
2656 | ||
955bfd98 PZ |
2657 | if (first > last || |
2658 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2659 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2660 | ||
e50f7cfd | 2661 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2662 | __func__, first, last); |
955bfd98 PZ |
2663 | return; |
2664 | } | |
2665 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2666 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2667 | first, last, response_keep); | |
2668 | } | |
2669 | ||
e70e9f8e | 2670 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2671 | |
2672 | stream_failure: /* for STREAM_GETX */ | |
2673 | return; | |
2674 | } | |
2675 | ||
342213ea DS |
2676 | extern struct zebra_privs_t bgpd_privs; |
2677 | ||
138c5a74 DS |
2678 | static int bgp_ifp_create(struct interface *ifp) |
2679 | { | |
ef7bd2a3 DS |
2680 | struct bgp *bgp; |
2681 | ||
2682 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2683 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name); | |
2684 | ||
2685 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); | |
2686 | if (!bgp) | |
2687 | return 0; | |
2688 | ||
2689 | bgp_mac_add_mac_entry(ifp); | |
2690 | ||
2691 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
138c5a74 DS |
2692 | return 0; |
2693 | } | |
2694 | ||
f533be73 | 2695 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2696 | { |
d62a17ae | 2697 | zclient_num_connects = 0; |
2698 | ||
138c5a74 DS |
2699 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
2700 | bgp_ifp_down, bgp_ifp_destroy); | |
2701 | ||
d62a17ae | 2702 | /* Set default values. */ |
26f63a1e | 2703 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2704 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2705 | zclient->zebra_connected = bgp_zebra_connected; |
2706 | zclient->router_id_update = bgp_router_id_update; | |
d62a17ae | 2707 | zclient->interface_address_add = bgp_interface_address_add; |
2708 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2709 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2710 | zclient->interface_nbr_address_delete = | |
2711 | bgp_interface_nbr_address_delete; | |
2712 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2713 | zclient->redistribute_route_add = zebra_read_route; |
2714 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2715 | zclient->nexthop_update = bgp_read_nexthop_update; |
2716 | zclient->import_check_update = bgp_read_import_check_update; | |
2717 | zclient->fec_update = bgp_read_fec_update; | |
50f74cf1 | 2718 | zclient->local_es_add = bgp_zebra_process_local_es; |
2719 | zclient->local_es_del = bgp_zebra_process_local_es; | |
d62a17ae | 2720 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
2721 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
2722 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2723 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2724 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2725 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2726 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2727 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2728 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
2729 | zclient->rule_notify_owner = rule_notify_owner; |
2730 | zclient->ipset_notify_owner = ipset_notify_owner; | |
2731 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 2732 | zclient->iptable_notify_owner = iptable_notify_owner; |
f533be73 | 2733 | zclient->instance = instance; |
718e3744 | 2734 | } |
bb86c601 | 2735 | |
d62a17ae | 2736 | void bgp_zebra_destroy(void) |
bb86c601 | 2737 | { |
d62a17ae | 2738 | if (zclient == NULL) |
2739 | return; | |
2740 | zclient_stop(zclient); | |
2741 | zclient_free(zclient); | |
2742 | zclient = NULL; | |
bb86c601 | 2743 | } |
afbb1c59 | 2744 | |
d62a17ae | 2745 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2746 | { |
d62a17ae | 2747 | return zclient_num_connects; |
afbb1c59 | 2748 | } |
30d50e6d | 2749 | |
6cfe5d15 PG |
2750 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
2751 | struct bgp_pbr_rule *pbr, | |
2752 | bool install) | |
30d50e6d PG |
2753 | { |
2754 | struct stream *s; | |
2755 | ||
6cfe5d15 | 2756 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 2757 | return; |
6cfe5d15 PG |
2758 | if (pbr && pbr->install_in_progress) |
2759 | return; | |
2760 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2761 | if (pbr) | |
2762 | zlog_debug("%s: table %d (ip rule) %d", | |
2763 | __PRETTY_FUNCTION__, | |
2764 | pbra->table_id, install); | |
2765 | else | |
2766 | zlog_debug("%s: table %d fwmark %d %d", | |
2767 | __PRETTY_FUNCTION__, | |
2768 | pbra->table_id, pbra->fwmark, install); | |
2769 | } | |
30d50e6d PG |
2770 | s = zclient->obuf; |
2771 | stream_reset(s); | |
2772 | ||
2773 | zclient_create_header(s, | |
2774 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
2775 | VRF_DEFAULT); | |
2776 | stream_putl(s, 1); /* send one pbr action */ | |
2777 | ||
6cfe5d15 | 2778 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
2779 | |
2780 | stream_putw_at(s, 0, stream_get_endp(s)); | |
6cfe5d15 PG |
2781 | if (!zclient_send_message(zclient) && install) { |
2782 | if (!pbr) | |
2783 | pbra->install_in_progress = true; | |
2784 | else | |
2785 | pbr->install_in_progress = true; | |
2786 | } | |
30d50e6d PG |
2787 | } |
2788 | ||
2789 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
2790 | { | |
2791 | struct stream *s; | |
2792 | ||
2793 | if (pbrim->install_in_progress) | |
2794 | return; | |
f0936054 | 2795 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2796 | zlog_debug("%s: name %s type %d %d, ID %u", |
f0936054 | 2797 | __PRETTY_FUNCTION__, |
88055124 PG |
2798 | pbrim->ipset_name, pbrim->type, |
2799 | install, pbrim->unique); | |
30d50e6d PG |
2800 | s = zclient->obuf; |
2801 | stream_reset(s); | |
2802 | ||
2803 | zclient_create_header(s, | |
2804 | install ? ZEBRA_IPSET_CREATE : | |
2805 | ZEBRA_IPSET_DESTROY, | |
2806 | VRF_DEFAULT); | |
2807 | ||
2808 | stream_putl(s, 1); /* send one pbr action */ | |
2809 | ||
2810 | bgp_encode_pbr_ipset_match(s, pbrim); | |
2811 | ||
2812 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2813 | if (!zclient_send_message(zclient) && install) | |
2814 | pbrim->install_in_progress = true; | |
2815 | } | |
2816 | ||
2817 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
2818 | bool install) | |
2819 | { | |
2820 | struct stream *s; | |
2821 | ||
2822 | if (pbrime->install_in_progress) | |
2823 | return; | |
f0936054 | 2824 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2825 | zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__, |
f0936054 | 2826 | pbrime->backpointer->ipset_name, |
88055124 | 2827 | pbrime->unique, install, pbrime->unique); |
30d50e6d PG |
2828 | s = zclient->obuf; |
2829 | stream_reset(s); | |
2830 | ||
2831 | zclient_create_header(s, | |
2832 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
2833 | ZEBRA_IPSET_ENTRY_DELETE, | |
2834 | VRF_DEFAULT); | |
2835 | ||
2836 | stream_putl(s, 1); /* send one pbr action */ | |
2837 | ||
2838 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
2839 | ||
2840 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2841 | if (!zclient_send_message(zclient) && install) | |
2842 | pbrime->install_in_progress = true; | |
2843 | } | |
c16a0a62 | 2844 | |
4762c213 PG |
2845 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s) |
2846 | { | |
2847 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2848 | struct bgp_pbr_interface_head *head; | |
2849 | struct bgp_pbr_interface *pbr_if; | |
2850 | struct interface *ifp; | |
2851 | ||
2852 | if (!bgp_pbr_cfg) | |
2853 | return; | |
2854 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2855 | ||
2856 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
a36898e7 | 2857 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
2858 | if (ifp) |
2859 | stream_putl(s, ifp->ifindex); | |
2860 | } | |
2861 | } | |
2862 | ||
2863 | static int bgp_pbr_get_ifnumber(struct bgp *bgp) | |
2864 | { | |
2865 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2866 | struct bgp_pbr_interface_head *head; | |
2867 | struct bgp_pbr_interface *pbr_if; | |
2868 | int cnt = 0; | |
2869 | ||
2870 | if (!bgp_pbr_cfg) | |
2871 | return 0; | |
2872 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2873 | ||
2874 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
a36898e7 | 2875 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
2876 | cnt++; |
2877 | } | |
2878 | return cnt; | |
2879 | } | |
2880 | ||
c16a0a62 PG |
2881 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
2882 | struct bgp_pbr_match *pbm, | |
2883 | bool install) | |
2884 | { | |
2885 | struct stream *s; | |
b5c40105 | 2886 | int ret = 0; |
4762c213 | 2887 | int nb_interface; |
c16a0a62 PG |
2888 | |
2889 | if (pbm->install_iptable_in_progress) | |
2890 | return; | |
f0936054 | 2891 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2892 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", |
f0936054 | 2893 | __PRETTY_FUNCTION__, pbm->ipset_name, |
88055124 PG |
2894 | pbm->type, pba->fwmark, install, |
2895 | pbm->unique2); | |
c16a0a62 PG |
2896 | s = zclient->obuf; |
2897 | stream_reset(s); | |
2898 | ||
2899 | zclient_create_header(s, | |
2900 | install ? ZEBRA_IPTABLE_ADD : | |
2901 | ZEBRA_IPTABLE_DELETE, | |
2902 | VRF_DEFAULT); | |
2903 | ||
2904 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
4762c213 PG |
2905 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp); |
2906 | stream_putl(s, nb_interface); | |
2907 | if (nb_interface) | |
2908 | bgp_encode_pbr_interface_list(pba->bgp, s); | |
c16a0a62 | 2909 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
2910 | ret = zclient_send_message(zclient); |
2911 | if (install) { | |
2912 | if (ret) | |
2913 | pba->refcnt++; | |
2914 | else | |
2915 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 2916 | } |
c16a0a62 | 2917 | } |
f7df1907 PG |
2918 | |
2919 | /* inject in table <table_id> a default route to: | |
2920 | * - if nexthop IP is present : to this nexthop | |
2921 | * - if vrf is different from local : to the matching VRF | |
2922 | */ | |
2923 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
2924 | afi_t afi, uint32_t table_id, bool announce) | |
2925 | { | |
2926 | struct zapi_nexthop *api_nh; | |
2927 | struct zapi_route api; | |
2928 | struct prefix p; | |
2929 | ||
2930 | if (!nh || nh->type != NEXTHOP_TYPE_IPV4 | |
2931 | || nh->vrf_id == VRF_UNKNOWN) | |
2932 | return; | |
2933 | memset(&p, 0, sizeof(struct prefix)); | |
2934 | /* default route */ | |
2935 | if (afi != AFI_IP) | |
2936 | return; | |
2937 | p.family = AF_INET; | |
2938 | memset(&api, 0, sizeof(api)); | |
2939 | api.vrf_id = bgp->vrf_id; | |
2940 | api.type = ZEBRA_ROUTE_BGP; | |
2941 | api.safi = SAFI_UNICAST; | |
2942 | api.prefix = p; | |
2943 | api.tableid = table_id; | |
2944 | api.nexthop_num = 1; | |
2945 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
2946 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
2947 | api_nh = &api.nexthops[0]; | |
2948 | ||
38a8c751 DS |
2949 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
2950 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
2951 | ||
f7df1907 PG |
2952 | /* redirect IP */ |
2953 | if (nh->gate.ipv4.s_addr) { | |
2954 | char buff[PREFIX_STRLEN]; | |
2955 | ||
2956 | api_nh->vrf_id = nh->vrf_id; | |
2957 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
2958 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
2959 | ||
2960 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
2961 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2962 | zlog_info("BGP: %s default route to %s table %d (redirect IP)", |
2963 | announce ? "adding" : "withdrawing", | |
f7df1907 PG |
2964 | buff, table_id); |
2965 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2966 | : ZEBRA_ROUTE_DELETE, | |
2967 | zclient, &api); | |
2968 | } else if (nh->vrf_id != bgp->vrf_id) { | |
2969 | struct vrf *vrf; | |
eb4244f8 | 2970 | struct interface *ifp; |
f7df1907 | 2971 | |
eb4244f8 | 2972 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
2973 | if (!vrf) |
2974 | return; | |
eb4244f8 PG |
2975 | /* create default route with interface <VRF> |
2976 | * with nexthop-vrf <VRF> | |
f7df1907 | 2977 | */ |
eb4244f8 PG |
2978 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
2979 | if (!ifp) | |
2980 | return; | |
2981 | api_nh->vrf_id = nh->vrf_id; | |
2982 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
2983 | api_nh->ifindex = ifp->ifindex; | |
2984 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2985 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
2986 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
2987 | vrf->name, table_id); |
2988 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2989 | : ZEBRA_ROUTE_DELETE, | |
2990 | zclient, &api); | |
f7df1907 PG |
2991 | return; |
2992 | } | |
2993 | } |