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bf094f69 | 1 | /* |
d8647095 | 2 | * Zebra API message creation & consumption. |
bf094f69 QY |
3 | * Portions: |
4 | * Copyright (C) 1997-1999 Kunihiro Ishiguro | |
5 | * Copyright (C) 2015-2018 Cumulus Networks, Inc. | |
6 | * et al. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the Free | |
10 | * Software Foundation; either version 2 of the License, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
16 | * more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | #include <libgen.h> | |
25 | ||
26 | #include "lib/prefix.h" | |
27 | #include "lib/command.h" | |
28 | #include "lib/if.h" | |
29 | #include "lib/thread.h" | |
30 | #include "lib/stream.h" | |
31 | #include "lib/memory.h" | |
32 | #include "lib/table.h" | |
33 | #include "lib/network.h" | |
34 | #include "lib/sockunion.h" | |
35 | #include "lib/log.h" | |
36 | #include "lib/zclient.h" | |
37 | #include "lib/privs.h" | |
38 | #include "lib/network.h" | |
39 | #include "lib/buffer.h" | |
40 | #include "lib/nexthop.h" | |
41 | #include "lib/vrf.h" | |
42 | #include "lib/libfrr.h" | |
43 | #include "lib/sockopt.h" | |
44 | ||
45 | #include "zebra/rib.h" | |
46 | #include "zebra/zebra_memory.h" | |
47 | #include "zebra/zebra_ns.h" | |
48 | #include "zebra/zebra_vrf.h" | |
49 | #include "zebra/router-id.h" | |
50 | #include "zebra/redistribute.h" | |
51 | #include "zebra/debug.h" | |
52 | #include "zebra/zebra_rnh.h" | |
53 | #include "zebra/rt_netlink.h" | |
54 | #include "zebra/interface.h" | |
55 | #include "zebra/zebra_ptm.h" | |
56 | #include "zebra/rtadv.h" | |
57 | #include "zebra/zebra_mpls.h" | |
58 | #include "zebra/zebra_mroute.h" | |
59 | #include "zebra/label_manager.h" | |
60 | #include "zebra/zebra_vxlan.h" | |
61 | #include "zebra/rt.h" | |
62 | #include "zebra/zebra_pbr.h" | |
63 | #include "zebra/table_manager.h" | |
64 | #include "zebra/zapi_msg.h" | |
364fed6b | 65 | #include "zebra/zebra_errors.h" |
bf094f69 QY |
66 | |
67 | /* Encoding helpers -------------------------------------------------------- */ | |
68 | ||
69 | static void zserv_encode_interface(struct stream *s, struct interface *ifp) | |
70 | { | |
71 | /* Interface information. */ | |
72 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
73 | stream_putl(s, ifp->ifindex); | |
74 | stream_putc(s, ifp->status); | |
75 | stream_putq(s, ifp->flags); | |
76 | stream_putc(s, ifp->ptm_enable); | |
77 | stream_putc(s, ifp->ptm_status); | |
78 | stream_putl(s, ifp->metric); | |
79 | stream_putl(s, ifp->speed); | |
80 | stream_putl(s, ifp->mtu); | |
81 | stream_putl(s, ifp->mtu6); | |
82 | stream_putl(s, ifp->bandwidth); | |
83 | stream_putl(s, ifp->ll_type); | |
84 | stream_putl(s, ifp->hw_addr_len); | |
85 | if (ifp->hw_addr_len) | |
86 | stream_put(s, ifp->hw_addr, ifp->hw_addr_len); | |
87 | ||
88 | /* Then, Traffic Engineering parameters if any */ | |
89 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { | |
90 | stream_putc(s, 1); | |
91 | zebra_interface_link_params_write(s, ifp); | |
92 | } else | |
93 | stream_putc(s, 0); | |
94 | ||
95 | /* Write packet size. */ | |
96 | stream_putw_at(s, 0, stream_get_endp(s)); | |
97 | } | |
98 | ||
99 | static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) | |
100 | { | |
101 | struct vrf_data data; | |
102 | const char *netns_name = zvrf_ns_name(zvrf); | |
103 | ||
104 | data.l.table_id = zvrf->table_id; | |
105 | ||
106 | if (netns_name) | |
107 | strlcpy(data.l.netns_name, basename((char *)netns_name), | |
108 | NS_NAMSIZ); | |
109 | else | |
110 | memset(data.l.netns_name, 0, NS_NAMSIZ); | |
111 | /* Pass the tableid and the netns NAME */ | |
112 | stream_put(s, &data, sizeof(struct vrf_data)); | |
113 | /* Interface information. */ | |
114 | stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); | |
115 | /* Write packet size. */ | |
116 | stream_putw_at(s, 0, stream_get_endp(s)); | |
117 | } | |
118 | ||
119 | static int zserv_encode_nexthop(struct stream *s, struct nexthop *nexthop) | |
120 | { | |
121 | stream_putc(s, nexthop->type); | |
122 | switch (nexthop->type) { | |
123 | case NEXTHOP_TYPE_IPV4: | |
124 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
125 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
126 | stream_putl(s, nexthop->ifindex); | |
127 | break; | |
128 | case NEXTHOP_TYPE_IPV6: | |
129 | stream_put(s, &nexthop->gate.ipv6, 16); | |
130 | break; | |
131 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
132 | stream_put(s, &nexthop->gate.ipv6, 16); | |
133 | stream_putl(s, nexthop->ifindex); | |
134 | break; | |
135 | case NEXTHOP_TYPE_IFINDEX: | |
136 | stream_putl(s, nexthop->ifindex); | |
137 | break; | |
138 | default: | |
139 | /* do nothing */ | |
140 | break; | |
141 | } | |
142 | return 1; | |
143 | } | |
144 | ||
145 | /* Send handlers ----------------------------------------------------------- */ | |
146 | ||
147 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ | |
148 | /* | |
149 | * This function is called in the following situations: | |
150 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
151 | * from the client. | |
152 | * - at startup, when zebra figures out the available interfaces | |
153 | * - when an interface is added (where support for | |
154 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
155 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
156 | * received) | |
157 | */ | |
158 | int zsend_interface_add(struct zserv *client, struct interface *ifp) | |
159 | { | |
160 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
161 | ||
162 | zclient_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); | |
163 | zserv_encode_interface(s, ifp); | |
164 | ||
165 | client->ifadd_cnt++; | |
21ccc0cf | 166 | return zserv_send_message(client, s); |
bf094f69 QY |
167 | } |
168 | ||
169 | /* Interface deletion from zebra daemon. */ | |
170 | int zsend_interface_delete(struct zserv *client, struct interface *ifp) | |
171 | { | |
172 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
173 | ||
174 | zclient_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); | |
175 | zserv_encode_interface(s, ifp); | |
176 | ||
177 | client->ifdel_cnt++; | |
21ccc0cf | 178 | return zserv_send_message(client, s); |
bf094f69 QY |
179 | } |
180 | ||
181 | int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) | |
182 | { | |
183 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
184 | ||
185 | zclient_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); | |
186 | zserv_encode_vrf(s, zvrf); | |
187 | ||
188 | client->vrfadd_cnt++; | |
21ccc0cf | 189 | return zserv_send_message(client, s); |
bf094f69 QY |
190 | } |
191 | ||
192 | /* VRF deletion from zebra daemon. */ | |
193 | int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) | |
194 | ||
195 | { | |
196 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
197 | ||
198 | zclient_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); | |
199 | zserv_encode_vrf(s, zvrf); | |
200 | ||
201 | client->vrfdel_cnt++; | |
21ccc0cf | 202 | return zserv_send_message(client, s); |
bf094f69 QY |
203 | } |
204 | ||
205 | int zsend_interface_link_params(struct zserv *client, struct interface *ifp) | |
206 | { | |
207 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
208 | ||
209 | /* Check this client need interface information. */ | |
210 | if (!client->ifinfo) { | |
211 | stream_free(s); | |
212 | return 0; | |
213 | } | |
214 | ||
215 | if (!ifp->link_params) { | |
216 | stream_free(s); | |
217 | return 0; | |
218 | } | |
219 | ||
220 | zclient_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); | |
221 | ||
222 | /* Add Interface Index */ | |
223 | stream_putl(s, ifp->ifindex); | |
224 | ||
225 | /* Then TE Link Parameters */ | |
226 | if (zebra_interface_link_params_write(s, ifp) == 0) { | |
227 | stream_free(s); | |
228 | return 0; | |
229 | } | |
230 | ||
231 | /* Write packet size. */ | |
232 | stream_putw_at(s, 0, stream_get_endp(s)); | |
233 | ||
21ccc0cf | 234 | return zserv_send_message(client, s); |
bf094f69 QY |
235 | } |
236 | ||
237 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or | |
238 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
239 | * | |
240 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
241 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
242 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
243 | * sent from zebra to the client | |
244 | * - redistribute new address info to all clients in the following situations | |
245 | * - at startup, when zebra figures out the available interfaces | |
246 | * - when an interface is added (where support for | |
247 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
248 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
249 | * received) | |
250 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
251 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
252 | * - when an RTM_NEWADDR message is received from the kernel, | |
253 | * | |
254 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
255 | * | |
256 | * zsend_interface_address(DELETE) | |
257 | * ^ | |
258 | * | | |
259 | * zebra_interface_address_delete_update | |
260 | * ^ ^ ^ | |
261 | * | | if_delete_update | |
262 | * | | | |
263 | * ip_address_uninstall connected_delete_ipv4 | |
264 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
265 | * ^ ^ | |
266 | * | | | |
267 | * | RTM_NEWADDR on routing/netlink socket | |
268 | * | | |
269 | * vty commands: | |
270 | * "no ip address A.B.C.D/M [label LINE]" | |
271 | * "no ip address A.B.C.D/M secondary" | |
272 | * ["no ipv6 address X:X::X:X/M"] | |
273 | * | |
274 | */ | |
275 | int zsend_interface_address(int cmd, struct zserv *client, | |
276 | struct interface *ifp, struct connected *ifc) | |
277 | { | |
278 | int blen; | |
279 | struct prefix *p; | |
280 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
281 | ||
282 | zclient_create_header(s, cmd, ifp->vrf_id); | |
283 | stream_putl(s, ifp->ifindex); | |
284 | ||
285 | /* Interface address flag. */ | |
286 | stream_putc(s, ifc->flags); | |
287 | ||
288 | /* Prefix information. */ | |
289 | p = ifc->address; | |
290 | stream_putc(s, p->family); | |
291 | blen = prefix_blen(p); | |
292 | stream_put(s, &p->u.prefix, blen); | |
293 | ||
294 | /* | |
295 | * XXX gnu version does not send prefixlen for | |
296 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
297 | * but zebra_interface_address_delete_read() in the gnu version | |
298 | * expects to find it | |
299 | */ | |
300 | stream_putc(s, p->prefixlen); | |
301 | ||
302 | /* Destination. */ | |
303 | p = ifc->destination; | |
304 | if (p) | |
305 | stream_put(s, &p->u.prefix, blen); | |
306 | else | |
307 | stream_put(s, NULL, blen); | |
308 | ||
309 | /* Write packet size. */ | |
310 | stream_putw_at(s, 0, stream_get_endp(s)); | |
311 | ||
312 | client->connected_rt_add_cnt++; | |
21ccc0cf | 313 | return zserv_send_message(client, s); |
bf094f69 QY |
314 | } |
315 | ||
316 | static int zsend_interface_nbr_address(int cmd, struct zserv *client, | |
317 | struct interface *ifp, | |
318 | struct nbr_connected *ifc) | |
319 | { | |
320 | int blen; | |
321 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
322 | struct prefix *p; | |
323 | ||
324 | zclient_create_header(s, cmd, ifp->vrf_id); | |
325 | stream_putl(s, ifp->ifindex); | |
326 | ||
327 | /* Prefix information. */ | |
328 | p = ifc->address; | |
329 | stream_putc(s, p->family); | |
330 | blen = prefix_blen(p); | |
331 | stream_put(s, &p->u.prefix, blen); | |
332 | ||
333 | /* | |
334 | * XXX gnu version does not send prefixlen for | |
335 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
336 | * but zebra_interface_address_delete_read() in the gnu version | |
337 | * expects to find it | |
338 | */ | |
339 | stream_putc(s, p->prefixlen); | |
340 | ||
341 | /* Write packet size. */ | |
342 | stream_putw_at(s, 0, stream_get_endp(s)); | |
343 | ||
21ccc0cf | 344 | return zserv_send_message(client, s); |
bf094f69 QY |
345 | } |
346 | ||
347 | /* Interface address addition. */ | |
348 | static void zebra_interface_nbr_address_add_update(struct interface *ifp, | |
349 | struct nbr_connected *ifc) | |
350 | { | |
351 | struct listnode *node, *nnode; | |
352 | struct zserv *client; | |
353 | struct prefix *p; | |
354 | ||
355 | if (IS_ZEBRA_DEBUG_EVENT) { | |
356 | char buf[INET6_ADDRSTRLEN]; | |
357 | ||
358 | p = ifc->address; | |
359 | zlog_debug( | |
360 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
361 | inet_ntop(p->family, &p->u.prefix, buf, | |
362 | INET6_ADDRSTRLEN), | |
363 | p->prefixlen, ifc->ifp->name); | |
364 | } | |
365 | ||
366 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) | |
367 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
368 | client, ifp, ifc); | |
369 | } | |
370 | ||
371 | /* Interface address deletion. */ | |
372 | static void zebra_interface_nbr_address_delete_update(struct interface *ifp, | |
373 | struct nbr_connected *ifc) | |
374 | { | |
375 | struct listnode *node, *nnode; | |
376 | struct zserv *client; | |
377 | struct prefix *p; | |
378 | ||
379 | if (IS_ZEBRA_DEBUG_EVENT) { | |
380 | char buf[INET6_ADDRSTRLEN]; | |
381 | ||
382 | p = ifc->address; | |
383 | zlog_debug( | |
384 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
385 | inet_ntop(p->family, &p->u.prefix, buf, | |
386 | INET6_ADDRSTRLEN), | |
387 | p->prefixlen, ifc->ifp->name); | |
388 | } | |
389 | ||
390 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) | |
391 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, | |
392 | client, ifp, ifc); | |
393 | } | |
394 | ||
395 | /* Send addresses on interface to client */ | |
396 | int zsend_interface_addresses(struct zserv *client, struct interface *ifp) | |
397 | { | |
398 | struct listnode *cnode, *cnnode; | |
399 | struct connected *c; | |
400 | struct nbr_connected *nc; | |
401 | ||
402 | /* Send interface addresses. */ | |
403 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
404 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
405 | continue; | |
406 | ||
407 | if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
408 | ifp, c) | |
409 | < 0) | |
410 | return -1; | |
411 | } | |
412 | ||
413 | /* Send interface neighbors. */ | |
414 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { | |
415 | if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
416 | client, ifp, nc) | |
417 | < 0) | |
418 | return -1; | |
419 | } | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
424 | /* Notify client about interface moving from one VRF to another. | |
425 | * Whether client is interested in old and new VRF is checked by caller. | |
426 | */ | |
427 | int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, | |
428 | vrf_id_t vrf_id) | |
429 | { | |
430 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
431 | ||
432 | zclient_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); | |
433 | ||
434 | /* Fill in the ifIndex of the interface and its new VRF (id) */ | |
435 | stream_putl(s, ifp->ifindex); | |
436 | stream_putl(s, vrf_id); | |
437 | ||
438 | /* Write packet size. */ | |
439 | stream_putw_at(s, 0, stream_get_endp(s)); | |
440 | ||
441 | client->if_vrfchg_cnt++; | |
21ccc0cf | 442 | return zserv_send_message(client, s); |
bf094f69 QY |
443 | } |
444 | ||
445 | /* Add new nbr connected IPv6 address */ | |
446 | void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) | |
447 | { | |
448 | struct nbr_connected *ifc; | |
449 | struct prefix p; | |
450 | ||
451 | p.family = AF_INET6; | |
a85297a7 | 452 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
453 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
454 | ||
8b1766b1 QY |
455 | ifc = listnode_head(ifp->nbr_connected); |
456 | if (!ifc) { | |
bf094f69 QY |
457 | /* new addition */ |
458 | ifc = nbr_connected_new(); | |
459 | ifc->address = prefix_new(); | |
460 | ifc->ifp = ifp; | |
461 | listnode_add(ifp->nbr_connected, ifc); | |
462 | } | |
463 | ||
464 | prefix_copy(ifc->address, &p); | |
465 | ||
466 | zebra_interface_nbr_address_add_update(ifp, ifc); | |
467 | ||
468 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); | |
469 | } | |
470 | ||
471 | void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) | |
472 | { | |
473 | struct nbr_connected *ifc; | |
474 | struct prefix p; | |
475 | ||
476 | p.family = AF_INET6; | |
a85297a7 | 477 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
478 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
479 | ||
480 | ifc = nbr_connected_check(ifp, &p); | |
481 | if (!ifc) | |
482 | return; | |
483 | ||
484 | listnode_delete(ifp->nbr_connected, ifc); | |
485 | ||
486 | zebra_interface_nbr_address_delete_update(ifp, ifc); | |
487 | ||
488 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); | |
489 | ||
490 | nbr_connected_free(ifc); | |
491 | } | |
492 | ||
493 | /* | |
494 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
495 | * ZEBRA_INTERFACE_DOWN. | |
496 | * | |
497 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
498 | * the clients in one of 2 situations: | |
499 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
500 | * - a vty command modifying the bandwidth of an interface is received. | |
501 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
502 | */ | |
503 | int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) | |
504 | { | |
505 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
506 | ||
507 | zclient_create_header(s, cmd, ifp->vrf_id); | |
508 | zserv_encode_interface(s, ifp); | |
509 | ||
510 | if (cmd == ZEBRA_INTERFACE_UP) | |
511 | client->ifup_cnt++; | |
512 | else | |
513 | client->ifdown_cnt++; | |
514 | ||
21ccc0cf | 515 | return zserv_send_message(client, s); |
bf094f69 QY |
516 | } |
517 | ||
86391e56 MS |
518 | int zsend_redistribute_route(int cmd, struct zserv *client, |
519 | const struct prefix *p, | |
520 | const struct prefix *src_p, struct route_entry *re) | |
bf094f69 QY |
521 | { |
522 | struct zapi_route api; | |
523 | struct zapi_nexthop *api_nh; | |
524 | struct nexthop *nexthop; | |
525 | int count = 0; | |
34fa0870 | 526 | afi_t afi; |
bf094f69 QY |
527 | |
528 | memset(&api, 0, sizeof(api)); | |
529 | api.vrf_id = re->vrf_id; | |
530 | api.type = re->type; | |
531 | api.instance = re->instance; | |
532 | api.flags = re->flags; | |
533 | ||
34fa0870 DS |
534 | afi = family2afi(p->family); |
535 | switch (afi) { | |
536 | case AFI_IP: | |
537 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
538 | client->redist_v4_add_cnt++; | |
539 | else | |
540 | client->redist_v4_del_cnt++; | |
541 | break; | |
542 | case AFI_IP6: | |
543 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
544 | client->redist_v6_add_cnt++; | |
545 | else | |
546 | client->redist_v6_del_cnt++; | |
547 | break; | |
548 | default: | |
549 | break; | |
550 | } | |
551 | ||
bf094f69 QY |
552 | /* Prefix. */ |
553 | api.prefix = *p; | |
554 | if (src_p) { | |
555 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
556 | memcpy(&api.src_prefix, src_p, sizeof(api.src_prefix)); | |
557 | } | |
558 | ||
559 | /* Nexthops. */ | |
560 | if (re->nexthop_active_num) { | |
561 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
562 | api.nexthop_num = re->nexthop_active_num; | |
563 | } | |
564 | for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) { | |
565 | if (!CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
566 | continue; | |
567 | ||
568 | api_nh = &api.nexthops[count]; | |
569 | api_nh->vrf_id = nexthop->vrf_id; | |
570 | api_nh->type = nexthop->type; | |
571 | switch (nexthop->type) { | |
572 | case NEXTHOP_TYPE_BLACKHOLE: | |
573 | api_nh->bh_type = nexthop->bh_type; | |
574 | break; | |
575 | case NEXTHOP_TYPE_IPV4: | |
576 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
577 | break; | |
578 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
579 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
580 | api_nh->ifindex = nexthop->ifindex; | |
581 | break; | |
582 | case NEXTHOP_TYPE_IFINDEX: | |
583 | api_nh->ifindex = nexthop->ifindex; | |
584 | break; | |
585 | case NEXTHOP_TYPE_IPV6: | |
586 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
587 | break; | |
588 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
589 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
590 | api_nh->ifindex = nexthop->ifindex; | |
591 | } | |
592 | count++; | |
593 | } | |
594 | ||
595 | /* Attributes. */ | |
596 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
597 | api.distance = re->distance; | |
598 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); | |
599 | api.metric = re->metric; | |
600 | if (re->tag) { | |
601 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
602 | api.tag = re->tag; | |
603 | } | |
604 | SET_FLAG(api.message, ZAPI_MESSAGE_MTU); | |
605 | api.mtu = re->mtu; | |
606 | ||
607 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
608 | ||
609 | /* Encode route and send. */ | |
610 | if (zapi_route_encode(cmd, s, &api) < 0) { | |
611 | stream_free(s); | |
612 | return -1; | |
613 | } | |
614 | ||
615 | if (IS_ZEBRA_DEBUG_SEND) { | |
616 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 617 | |
bf094f69 QY |
618 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
619 | ||
620 | zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %s", | |
621 | __func__, zserv_command_string(cmd), | |
622 | zebra_route_string(client->proto), | |
623 | zebra_route_string(api.type), api.vrf_id, | |
624 | buf_prefix); | |
625 | } | |
21ccc0cf | 626 | return zserv_send_message(client, s); |
bf094f69 QY |
627 | } |
628 | ||
629 | /* | |
630 | * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if | |
631 | * nexthop is not found on mrib. Returns both route metric and protocol | |
632 | * distance. | |
633 | */ | |
634 | static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, | |
635 | struct in_addr addr, | |
636 | struct route_entry *re, | |
637 | struct zebra_vrf *zvrf) | |
638 | { | |
639 | struct stream *s; | |
640 | unsigned long nump; | |
641 | uint8_t num; | |
642 | struct nexthop *nexthop; | |
643 | ||
644 | /* Get output stream. */ | |
645 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
646 | stream_reset(s); | |
647 | ||
648 | /* Fill in result. */ | |
649 | zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); | |
650 | stream_put_in_addr(s, &addr); | |
651 | ||
652 | if (re) { | |
653 | stream_putc(s, re->distance); | |
654 | stream_putl(s, re->metric); | |
655 | num = 0; | |
8b1766b1 QY |
656 | /* remember position for nexthop_num */ |
657 | nump = stream_get_endp(s); | |
658 | /* reserve room for nexthop_num */ | |
659 | stream_putc(s, 0); | |
660 | /* | |
661 | * Only non-recursive routes are elegible to resolve the | |
662 | * nexthop we are looking up. Therefore, we will just iterate | |
663 | * over the top chain of nexthops. | |
664 | */ | |
bf094f69 QY |
665 | for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) |
666 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
667 | num += zserv_encode_nexthop(s, nexthop); | |
668 | ||
8b1766b1 QY |
669 | /* store nexthop_num */ |
670 | stream_putc_at(s, nump, num); | |
bf094f69 QY |
671 | } else { |
672 | stream_putc(s, 0); /* distance */ | |
673 | stream_putl(s, 0); /* metric */ | |
674 | stream_putc(s, 0); /* nexthop_num */ | |
675 | } | |
676 | ||
677 | stream_putw_at(s, 0, stream_get_endp(s)); | |
678 | ||
21ccc0cf | 679 | return zserv_send_message(client, s); |
bf094f69 QY |
680 | } |
681 | ||
86391e56 MS |
682 | /* |
683 | * Common utility send route notification, called from a path using a | |
684 | * route_entry and from a path using a dataplane context. | |
685 | */ | |
686 | static int route_notify_internal(const struct prefix *p, int type, | |
687 | uint16_t instance, vrf_id_t vrf_id, | |
688 | uint32_t table_id, | |
689 | enum zapi_route_notify_owner note) | |
bf094f69 QY |
690 | { |
691 | struct zserv *client; | |
692 | struct stream *s; | |
693 | uint8_t blen; | |
694 | ||
86391e56 | 695 | client = zserv_find_client(type, instance); |
bf094f69 QY |
696 | if (!client || !client->notify_owner) { |
697 | if (IS_ZEBRA_DEBUG_PACKET) { | |
698 | char buff[PREFIX_STRLEN]; | |
699 | ||
700 | zlog_debug( | |
701 | "Not Notifying Owner: %u about prefix %s(%u) %d vrf: %u", | |
86391e56 MS |
702 | type, prefix2str(p, buff, sizeof(buff)), |
703 | table_id, note, vrf_id); | |
bf094f69 QY |
704 | } |
705 | return 0; | |
706 | } | |
707 | ||
708 | if (IS_ZEBRA_DEBUG_PACKET) { | |
709 | char buff[PREFIX_STRLEN]; | |
710 | ||
711 | zlog_debug("Notifying Owner: %u about prefix %s(%u) %d vrf: %u", | |
86391e56 MS |
712 | type, prefix2str(p, buff, sizeof(buff)), |
713 | table_id, note, vrf_id); | |
bf094f69 QY |
714 | } |
715 | ||
716 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
717 | stream_reset(s); | |
718 | ||
86391e56 | 719 | zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, vrf_id); |
bf094f69 QY |
720 | |
721 | stream_put(s, ¬e, sizeof(note)); | |
722 | ||
723 | stream_putc(s, p->family); | |
724 | ||
725 | blen = prefix_blen(p); | |
726 | stream_putc(s, p->prefixlen); | |
727 | stream_put(s, &p->u.prefix, blen); | |
728 | ||
86391e56 | 729 | stream_putl(s, table_id); |
bf094f69 QY |
730 | |
731 | stream_putw_at(s, 0, stream_get_endp(s)); | |
732 | ||
21ccc0cf | 733 | return zserv_send_message(client, s); |
bf094f69 QY |
734 | } |
735 | ||
86391e56 MS |
736 | int zsend_route_notify_owner(struct route_entry *re, const struct prefix *p, |
737 | enum zapi_route_notify_owner note) | |
738 | { | |
739 | return (route_notify_internal(p, re->type, re->instance, re->vrf_id, | |
740 | re->table, note)); | |
741 | } | |
742 | ||
bf094f69 QY |
743 | void zsend_rule_notify_owner(struct zebra_pbr_rule *rule, |
744 | enum zapi_rule_notify_owner note) | |
745 | { | |
746 | struct listnode *node; | |
747 | struct zserv *client; | |
748 | struct stream *s; | |
749 | ||
750 | if (IS_ZEBRA_DEBUG_PACKET) | |
751 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
752 | rule->rule.unique); | |
753 | ||
754 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { | |
755 | if (rule->sock == client->sock) | |
756 | break; | |
757 | } | |
758 | ||
759 | if (!client) | |
760 | return; | |
761 | ||
762 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
763 | ||
764 | zclient_create_header(s, ZEBRA_RULE_NOTIFY_OWNER, VRF_DEFAULT); | |
765 | stream_put(s, ¬e, sizeof(note)); | |
766 | stream_putl(s, rule->rule.seq); | |
767 | stream_putl(s, rule->rule.priority); | |
768 | stream_putl(s, rule->rule.unique); | |
769 | if (rule->ifp) | |
770 | stream_putl(s, rule->ifp->ifindex); | |
771 | else | |
772 | stream_putl(s, 0); | |
773 | ||
774 | stream_putw_at(s, 0, stream_get_endp(s)); | |
775 | ||
21ccc0cf | 776 | zserv_send_message(client, s); |
bf094f69 QY |
777 | } |
778 | ||
779 | void zsend_ipset_notify_owner(struct zebra_pbr_ipset *ipset, | |
780 | enum zapi_ipset_notify_owner note) | |
781 | { | |
782 | struct listnode *node; | |
783 | struct zserv *client; | |
784 | struct stream *s; | |
785 | ||
786 | if (IS_ZEBRA_DEBUG_PACKET) | |
787 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
788 | ipset->unique); | |
789 | ||
790 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { | |
791 | if (ipset->sock == client->sock) | |
792 | break; | |
793 | } | |
794 | ||
795 | if (!client) | |
796 | return; | |
797 | ||
798 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
799 | ||
800 | zclient_create_header(s, ZEBRA_IPSET_NOTIFY_OWNER, VRF_DEFAULT); | |
801 | stream_put(s, ¬e, sizeof(note)); | |
802 | stream_putl(s, ipset->unique); | |
803 | stream_put(s, ipset->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
804 | stream_putw_at(s, 0, stream_get_endp(s)); | |
805 | ||
21ccc0cf | 806 | zserv_send_message(client, s); |
bf094f69 QY |
807 | } |
808 | ||
809 | void zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry *ipset, | |
810 | enum zapi_ipset_entry_notify_owner note) | |
811 | { | |
812 | struct listnode *node; | |
813 | struct zserv *client; | |
814 | struct stream *s; | |
815 | ||
816 | if (IS_ZEBRA_DEBUG_PACKET) | |
817 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
818 | ipset->unique); | |
819 | ||
820 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { | |
821 | if (ipset->sock == client->sock) | |
822 | break; | |
823 | } | |
824 | ||
825 | if (!client) | |
826 | return; | |
827 | ||
828 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
829 | ||
830 | zclient_create_header(s, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER, VRF_DEFAULT); | |
831 | stream_put(s, ¬e, sizeof(note)); | |
832 | stream_putl(s, ipset->unique); | |
833 | stream_put(s, ipset->backpointer->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
834 | stream_putw_at(s, 0, stream_get_endp(s)); | |
835 | ||
21ccc0cf | 836 | zserv_send_message(client, s); |
bf094f69 QY |
837 | } |
838 | ||
839 | void zsend_iptable_notify_owner(struct zebra_pbr_iptable *iptable, | |
840 | enum zapi_iptable_notify_owner note) | |
841 | { | |
842 | struct listnode *node; | |
843 | struct zserv *client; | |
844 | struct stream *s; | |
845 | ||
846 | if (IS_ZEBRA_DEBUG_PACKET) | |
847 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
848 | iptable->unique); | |
849 | ||
850 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { | |
851 | if (iptable->sock == client->sock) | |
852 | break; | |
853 | } | |
854 | ||
855 | if (!client) | |
856 | return; | |
857 | ||
858 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
859 | ||
860 | zclient_create_header(s, ZEBRA_IPTABLE_NOTIFY_OWNER, VRF_DEFAULT); | |
861 | stream_put(s, ¬e, sizeof(note)); | |
862 | stream_putl(s, iptable->unique); | |
863 | stream_putw_at(s, 0, stream_get_endp(s)); | |
864 | ||
21ccc0cf | 865 | zserv_send_message(client, s); |
bf094f69 QY |
866 | } |
867 | ||
868 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ | |
869 | int zsend_router_id_update(struct zserv *client, struct prefix *p, | |
870 | vrf_id_t vrf_id) | |
871 | { | |
872 | int blen; | |
873 | ||
874 | /* Check this client need interface information. */ | |
875 | if (!vrf_bitmap_check(client->ridinfo, vrf_id)) | |
876 | return 0; | |
877 | ||
878 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
879 | ||
880 | /* Message type. */ | |
881 | zclient_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); | |
882 | ||
883 | /* Prefix information. */ | |
884 | stream_putc(s, p->family); | |
885 | blen = prefix_blen(p); | |
886 | stream_put(s, &p->u.prefix, blen); | |
887 | stream_putc(s, p->prefixlen); | |
888 | ||
889 | /* Write packet size. */ | |
890 | stream_putw_at(s, 0, stream_get_endp(s)); | |
891 | ||
21ccc0cf | 892 | return zserv_send_message(client, s); |
bf094f69 QY |
893 | } |
894 | ||
895 | /* | |
896 | * Function used by Zebra to send a PW status update to LDP daemon | |
897 | */ | |
898 | int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) | |
899 | { | |
900 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
901 | ||
902 | zclient_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); | |
903 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
904 | stream_putl(s, pw->ifindex); | |
905 | stream_putl(s, pw->status); | |
906 | ||
907 | /* Put length at the first point of the stream. */ | |
908 | stream_putw_at(s, 0, stream_get_endp(s)); | |
909 | ||
21ccc0cf | 910 | return zserv_send_message(client, s); |
bf094f69 QY |
911 | } |
912 | ||
913 | /* Send response to a get label chunk request to client */ | |
914 | static int zsend_assign_label_chunk_response(struct zserv *client, | |
915 | vrf_id_t vrf_id, | |
916 | struct label_manager_chunk *lmc) | |
917 | { | |
918 | int ret; | |
919 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
920 | ||
921 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); | |
922 | ||
923 | if (lmc) { | |
5dffb0e9 FR |
924 | /* proto */ |
925 | stream_putc(s, lmc->proto); | |
926 | /* instance */ | |
927 | stream_putw(s, lmc->instance); | |
bf094f69 QY |
928 | /* keep */ |
929 | stream_putc(s, lmc->keep); | |
930 | /* start and end labels */ | |
931 | stream_putl(s, lmc->start); | |
932 | stream_putl(s, lmc->end); | |
933 | } | |
934 | ||
935 | /* Write packet size. */ | |
936 | stream_putw_at(s, 0, stream_get_endp(s)); | |
937 | ||
938 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
939 | stream_free(s); | |
940 | return ret; | |
941 | } | |
942 | ||
943 | /* Send response to a label manager connect request to client */ | |
944 | static int zsend_label_manager_connect_response(struct zserv *client, | |
945 | vrf_id_t vrf_id, | |
946 | unsigned short result) | |
947 | { | |
948 | int ret; | |
949 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
950 | ||
951 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); | |
952 | ||
5dffb0e9 FR |
953 | /* proto */ |
954 | stream_putc(s, client->proto); | |
955 | ||
956 | /* instance */ | |
957 | stream_putw(s, client->instance); | |
958 | ||
bf094f69 QY |
959 | /* result */ |
960 | stream_putc(s, result); | |
961 | ||
962 | /* Write packet size. */ | |
963 | stream_putw_at(s, 0, stream_get_endp(s)); | |
964 | ||
965 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
966 | stream_free(s); | |
967 | ||
968 | return ret; | |
969 | } | |
970 | ||
971 | /* Send response to a get table chunk request to client */ | |
972 | static int zsend_assign_table_chunk_response(struct zserv *client, | |
973 | vrf_id_t vrf_id, | |
974 | struct table_manager_chunk *tmc) | |
975 | { | |
976 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
977 | ||
978 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, vrf_id); | |
979 | ||
980 | if (tmc) { | |
981 | /* start and end labels */ | |
982 | stream_putl(s, tmc->start); | |
983 | stream_putl(s, tmc->end); | |
984 | } | |
985 | ||
986 | /* Write packet size. */ | |
987 | stream_putw_at(s, 0, stream_get_endp(s)); | |
988 | ||
21ccc0cf | 989 | return zserv_send_message(client, s); |
bf094f69 QY |
990 | } |
991 | ||
992 | static int zsend_table_manager_connect_response(struct zserv *client, | |
993 | vrf_id_t vrf_id, | |
994 | uint16_t result) | |
995 | { | |
996 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
997 | ||
998 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, vrf_id); | |
999 | ||
1000 | /* result */ | |
1001 | stream_putc(s, result); | |
1002 | ||
1003 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1004 | ||
21ccc0cf | 1005 | return zserv_send_message(client, s); |
bf094f69 QY |
1006 | } |
1007 | ||
1008 | /* Inbound message handling ------------------------------------------------ */ | |
1009 | ||
1010 | int cmd2type[] = { | |
1011 | [ZEBRA_NEXTHOP_REGISTER] = RNH_NEXTHOP_TYPE, | |
1012 | [ZEBRA_NEXTHOP_UNREGISTER] = RNH_NEXTHOP_TYPE, | |
1013 | [ZEBRA_IMPORT_ROUTE_REGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1014 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1015 | }; | |
1016 | ||
1017 | /* Nexthop register */ | |
1018 | static void zread_rnh_register(ZAPI_HANDLER_ARGS) | |
1019 | { | |
1020 | struct rnh *rnh; | |
1021 | struct stream *s; | |
1022 | struct prefix p; | |
1023 | unsigned short l = 0; | |
1024 | uint8_t flags = 0; | |
1025 | uint16_t type = cmd2type[hdr->command]; | |
1d30d1f4 | 1026 | bool exist; |
bf094f69 QY |
1027 | |
1028 | if (IS_ZEBRA_DEBUG_NHT) | |
1029 | zlog_debug( | |
1030 | "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u\n", | |
1031 | zebra_route_string(client->proto), hdr->length, | |
1032 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route", | |
1033 | zvrf->vrf->vrf_id); | |
1034 | ||
1035 | s = msg; | |
1036 | ||
1037 | client->nh_reg_time = monotime(NULL); | |
1038 | ||
1039 | while (l < hdr->length) { | |
1040 | STREAM_GETC(s, flags); | |
1041 | STREAM_GETW(s, p.family); | |
1042 | STREAM_GETC(s, p.prefixlen); | |
1043 | l += 4; | |
1044 | if (p.family == AF_INET) { | |
1045 | if (p.prefixlen > IPV4_MAX_BITLEN) { | |
9df414fe | 1046 | zlog_debug( |
bf094f69 QY |
1047 | "%s: Specified prefix hdr->length %d is too large for a v4 address", |
1048 | __PRETTY_FUNCTION__, p.prefixlen); | |
1049 | return; | |
1050 | } | |
1051 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1052 | l += IPV4_MAX_BYTELEN; | |
1053 | } else if (p.family == AF_INET6) { | |
1054 | if (p.prefixlen > IPV6_MAX_BITLEN) { | |
9df414fe | 1055 | zlog_debug( |
bf094f69 QY |
1056 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
1057 | __PRETTY_FUNCTION__, p.prefixlen); | |
1058 | return; | |
1059 | } | |
1060 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1061 | l += IPV6_MAX_BYTELEN; | |
1062 | } else { | |
af4c2728 | 1063 | flog_err( |
e914ccbe | 1064 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1065 | "rnh_register: Received unknown family type %d\n", |
1066 | p.family); | |
1067 | return; | |
1068 | } | |
1d30d1f4 DS |
1069 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type, &exist); |
1070 | if (!rnh) | |
1071 | return; | |
1072 | ||
bf094f69 QY |
1073 | if (type == RNH_NEXTHOP_TYPE) { |
1074 | if (flags | |
1075 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1076 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1077 | else if (!flags | |
1078 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1079 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1080 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
1081 | if (flags | |
1082 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
1083 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1084 | else if (!flags | |
1085 | && CHECK_FLAG(rnh->flags, | |
1086 | ZEBRA_NHT_EXACT_MATCH)) | |
1087 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1088 | } | |
1089 | ||
1090 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
1091 | /* Anything not AF_INET/INET6 has been filtered out above */ | |
1d30d1f4 | 1092 | if (!exist) |
6d53d7b1 | 1093 | zebra_evaluate_rnh(zvrf, p.family, 1, type, &p); |
bf094f69 QY |
1094 | } |
1095 | ||
1096 | stream_failure: | |
1097 | return; | |
1098 | } | |
1099 | ||
1100 | /* Nexthop register */ | |
1101 | static void zread_rnh_unregister(ZAPI_HANDLER_ARGS) | |
1102 | { | |
1103 | struct rnh *rnh; | |
1104 | struct stream *s; | |
1105 | struct prefix p; | |
1106 | unsigned short l = 0; | |
1107 | uint16_t type = cmd2type[hdr->command]; | |
1108 | ||
1109 | if (IS_ZEBRA_DEBUG_NHT) | |
1110 | zlog_debug( | |
1111 | "rnh_unregister msg from client %s: hdr->length=%d vrf: %u\n", | |
1112 | zebra_route_string(client->proto), hdr->length, | |
1113 | zvrf->vrf->vrf_id); | |
1114 | ||
1115 | s = msg; | |
1116 | ||
1117 | while (l < hdr->length) { | |
1118 | uint8_t flags; | |
1119 | ||
1120 | STREAM_GETC(s, flags); | |
1121 | if (flags != 0) | |
1122 | goto stream_failure; | |
1123 | ||
1124 | STREAM_GETW(s, p.family); | |
1125 | STREAM_GETC(s, p.prefixlen); | |
1126 | l += 4; | |
1127 | if (p.family == AF_INET) { | |
1128 | if (p.prefixlen > IPV4_MAX_BITLEN) { | |
9df414fe | 1129 | zlog_debug( |
bf094f69 QY |
1130 | "%s: Specified prefix hdr->length %d is to large for a v4 address", |
1131 | __PRETTY_FUNCTION__, p.prefixlen); | |
1132 | return; | |
1133 | } | |
1134 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1135 | l += IPV4_MAX_BYTELEN; | |
1136 | } else if (p.family == AF_INET6) { | |
1137 | if (p.prefixlen > IPV6_MAX_BITLEN) { | |
9df414fe | 1138 | zlog_debug( |
bf094f69 QY |
1139 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
1140 | __PRETTY_FUNCTION__, p.prefixlen); | |
1141 | return; | |
1142 | } | |
1143 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1144 | l += IPV6_MAX_BYTELEN; | |
1145 | } else { | |
af4c2728 | 1146 | flog_err( |
e914ccbe | 1147 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1148 | "rnh_register: Received unknown family type %d\n", |
1149 | p.family); | |
1150 | return; | |
1151 | } | |
1152 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
1153 | if (rnh) { | |
1154 | client->nh_dereg_time = monotime(NULL); | |
1155 | zebra_remove_rnh_client(rnh, client, type); | |
1156 | } | |
1157 | } | |
1158 | stream_failure: | |
1159 | return; | |
1160 | } | |
1161 | ||
1162 | #define ZEBRA_MIN_FEC_LENGTH 5 | |
1163 | ||
1164 | /* FEC register */ | |
1165 | static void zread_fec_register(ZAPI_HANDLER_ARGS) | |
1166 | { | |
1167 | struct stream *s; | |
1168 | unsigned short l = 0; | |
1169 | struct prefix p; | |
1170 | uint16_t flags; | |
1171 | uint32_t label_index = MPLS_INVALID_LABEL_INDEX; | |
1172 | ||
1173 | s = msg; | |
1174 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1175 | if (!zvrf) | |
8b1766b1 | 1176 | return; |
bf094f69 QY |
1177 | |
1178 | /* | |
1179 | * The minimum amount of data that can be sent for one fec | |
1180 | * registration | |
1181 | */ | |
1182 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1183 | flog_err( |
e914ccbe | 1184 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1185 | "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode", |
1186 | hdr->length); | |
1187 | return; | |
1188 | } | |
1189 | ||
1190 | while (l < hdr->length) { | |
1191 | STREAM_GETW(s, flags); | |
1192 | memset(&p, 0, sizeof(p)); | |
1193 | STREAM_GETW(s, p.family); | |
1194 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1195 | flog_err( |
e914ccbe | 1196 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1197 | "fec_register: Received unknown family type %d\n", |
1198 | p.family); | |
1199 | return; | |
1200 | } | |
1201 | STREAM_GETC(s, p.prefixlen); | |
1202 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1203 | || (p.family == AF_INET6 | |
1204 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1205 | zlog_debug( |
bf094f69 QY |
1206 | "%s: Specified prefix hdr->length: %d is to long for %d", |
1207 | __PRETTY_FUNCTION__, p.prefixlen, p.family); | |
1208 | return; | |
1209 | } | |
1210 | l += 5; | |
1211 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1212 | l += PSIZE(p.prefixlen); | |
1213 | if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { | |
1214 | STREAM_GETL(s, label_index); | |
1215 | l += 4; | |
1216 | } else | |
1217 | label_index = MPLS_INVALID_LABEL_INDEX; | |
1218 | zebra_mpls_fec_register(zvrf, &p, label_index, client); | |
1219 | } | |
1220 | ||
1221 | stream_failure: | |
1222 | return; | |
1223 | } | |
1224 | ||
1225 | /* FEC unregister */ | |
1226 | static void zread_fec_unregister(ZAPI_HANDLER_ARGS) | |
1227 | { | |
1228 | struct stream *s; | |
1229 | unsigned short l = 0; | |
1230 | struct prefix p; | |
1231 | uint16_t flags; | |
1232 | ||
1233 | s = msg; | |
1234 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1235 | if (!zvrf) | |
8b1766b1 | 1236 | return; |
bf094f69 QY |
1237 | |
1238 | /* | |
1239 | * The minimum amount of data that can be sent for one | |
1240 | * fec unregistration | |
1241 | */ | |
1242 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1243 | flog_err( |
e914ccbe | 1244 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1245 | "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode", |
1246 | hdr->length); | |
1247 | return; | |
1248 | } | |
1249 | ||
1250 | while (l < hdr->length) { | |
1251 | STREAM_GETW(s, flags); | |
1252 | if (flags != 0) | |
1253 | goto stream_failure; | |
1254 | ||
1255 | memset(&p, 0, sizeof(p)); | |
1256 | STREAM_GETW(s, p.family); | |
1257 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1258 | flog_err( |
e914ccbe | 1259 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1260 | "fec_unregister: Received unknown family type %d\n", |
1261 | p.family); | |
1262 | return; | |
1263 | } | |
1264 | STREAM_GETC(s, p.prefixlen); | |
1265 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1266 | || (p.family == AF_INET6 | |
1267 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1268 | zlog_debug( |
bf094f69 QY |
1269 | "%s: Received prefix hdr->length %d which is greater than %d can support", |
1270 | __PRETTY_FUNCTION__, p.prefixlen, p.family); | |
1271 | return; | |
1272 | } | |
1273 | l += 5; | |
1274 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1275 | l += PSIZE(p.prefixlen); | |
1276 | zebra_mpls_fec_unregister(zvrf, &p, client); | |
1277 | } | |
1278 | ||
1279 | stream_failure: | |
1280 | return; | |
1281 | } | |
1282 | ||
1283 | ||
1284 | /* | |
1285 | * Register zebra server interface information. | |
1286 | * Send current all interface and address information. | |
1287 | */ | |
1288 | static void zread_interface_add(ZAPI_HANDLER_ARGS) | |
1289 | { | |
1290 | struct vrf *vrf; | |
1291 | struct interface *ifp; | |
1292 | ||
1293 | /* Interface information is needed. */ | |
1294 | vrf_bitmap_set(client->ifinfo, zvrf_id(zvrf)); | |
1295 | ||
1296 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { | |
1297 | FOR_ALL_INTERFACES (vrf, ifp) { | |
1298 | /* Skip pseudo interface. */ | |
1299 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1300 | continue; | |
1301 | ||
1302 | zsend_interface_add(client, ifp); | |
1303 | zsend_interface_addresses(client, ifp); | |
1304 | } | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | /* Unregister zebra server interface information. */ | |
1309 | static void zread_interface_delete(ZAPI_HANDLER_ARGS) | |
1310 | { | |
1311 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); | |
1312 | } | |
1313 | ||
1314 | void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, | |
1315 | const unsigned int nexthop_num) | |
1316 | { | |
1317 | if (nexthop_num > multipath_num) { | |
1318 | char buff[PREFIX2STR_BUFFER]; | |
8b1766b1 | 1319 | |
bf094f69 | 1320 | prefix2str(p, buff, sizeof(buff)); |
9df414fe | 1321 | flog_warn( |
e914ccbe | 1322 | EC_ZEBRA_MORE_NH_THAN_MULTIPATH, |
bf094f69 QY |
1323 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", |
1324 | caller, buff, nexthop_num, multipath_num); | |
1325 | } | |
1326 | } | |
1327 | ||
1328 | static void zread_route_add(ZAPI_HANDLER_ARGS) | |
1329 | { | |
1330 | struct stream *s; | |
1331 | struct zapi_route api; | |
1332 | struct zapi_nexthop *api_nh; | |
1333 | afi_t afi; | |
1334 | struct prefix_ipv6 *src_p = NULL; | |
1335 | struct route_entry *re; | |
1336 | struct nexthop *nexthop = NULL; | |
1337 | int i, ret; | |
1338 | vrf_id_t vrf_id = 0; | |
1339 | struct ipaddr vtep_ip; | |
1340 | ||
1341 | s = msg; | |
1342 | if (zapi_route_decode(s, &api) < 0) { | |
1343 | if (IS_ZEBRA_DEBUG_RECV) | |
1344 | zlog_debug("%s: Unable to decode zapi_route sent", | |
1345 | __PRETTY_FUNCTION__); | |
1346 | return; | |
1347 | } | |
1348 | ||
1349 | if (IS_ZEBRA_DEBUG_RECV) { | |
1350 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 1351 | |
bf094f69 QY |
1352 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
1353 | zlog_debug("%s: p=%s, ZAPI_MESSAGE_LABEL: %sset, flags=0x%x", | |
1354 | __func__, buf_prefix, | |
1355 | (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) ? "" | |
1356 | : "un"), | |
1357 | api.flags); | |
1358 | } | |
1359 | ||
1360 | /* Allocate new route. */ | |
1361 | vrf_id = zvrf_id(zvrf); | |
1362 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1363 | re->type = api.type; | |
1364 | re->instance = api.instance; | |
1365 | re->flags = api.flags; | |
1366 | re->uptime = time(NULL); | |
1367 | re->vrf_id = vrf_id; | |
1368 | if (api.tableid && vrf_id == VRF_DEFAULT) | |
1369 | re->table = api.tableid; | |
1370 | else | |
1371 | re->table = zvrf->table_id; | |
1372 | ||
1373 | /* | |
1374 | * TBD should _all_ of the nexthop add operations use | |
1375 | * api_nh->vrf_id instead of re->vrf_id ? I only changed | |
1376 | * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6. | |
1377 | */ | |
8b1766b1 | 1378 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) |
bf094f69 QY |
1379 | for (i = 0; i < api.nexthop_num; i++) { |
1380 | api_nh = &api.nexthops[i]; | |
1381 | ifindex_t ifindex = 0; | |
1382 | ||
8b1766b1 | 1383 | if (IS_ZEBRA_DEBUG_RECV) |
bf094f69 | 1384 | zlog_debug("nh type %d", api_nh->type); |
bf094f69 QY |
1385 | |
1386 | switch (api_nh->type) { | |
1387 | case NEXTHOP_TYPE_IFINDEX: | |
1388 | nexthop = route_entry_nexthop_ifindex_add( | |
1389 | re, api_nh->ifindex, api_nh->vrf_id); | |
1390 | break; | |
1391 | case NEXTHOP_TYPE_IPV4: | |
1392 | if (IS_ZEBRA_DEBUG_RECV) { | |
1393 | char nhbuf[INET6_ADDRSTRLEN] = {0}; | |
8b1766b1 | 1394 | |
bf094f69 QY |
1395 | inet_ntop(AF_INET, &api_nh->gate.ipv4, |
1396 | nhbuf, INET6_ADDRSTRLEN); | |
1397 | zlog_debug("%s: nh=%s, vrf_id=%d", | |
1398 | __func__, nhbuf, | |
1399 | api_nh->vrf_id); | |
1400 | } | |
1401 | nexthop = route_entry_nexthop_ipv4_add( | |
1402 | re, &api_nh->gate.ipv4, NULL, | |
1403 | api_nh->vrf_id); | |
1404 | break; | |
1405 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1406 | ||
1407 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
1408 | if (CHECK_FLAG(api.flags, | |
1409 | ZEBRA_FLAG_EVPN_ROUTE)) { | |
1410 | ifindex = get_l3vni_svi_ifindex(vrf_id); | |
1411 | } else { | |
1412 | ifindex = api_nh->ifindex; | |
1413 | } | |
1414 | ||
1415 | if (IS_ZEBRA_DEBUG_RECV) { | |
1416 | char nhbuf[INET6_ADDRSTRLEN] = {0}; | |
8b1766b1 | 1417 | |
bf094f69 QY |
1418 | inet_ntop(AF_INET, &api_nh->gate.ipv4, |
1419 | nhbuf, INET6_ADDRSTRLEN); | |
1420 | zlog_debug( | |
1421 | "%s: nh=%s, vrf_id=%d (re->vrf_id=%d), ifindex=%d", | |
1422 | __func__, nhbuf, api_nh->vrf_id, | |
1423 | re->vrf_id, ifindex); | |
1424 | } | |
1425 | nexthop = route_entry_nexthop_ipv4_ifindex_add( | |
1426 | re, &api_nh->gate.ipv4, NULL, ifindex, | |
1427 | api_nh->vrf_id); | |
1428 | ||
1429 | /* if this an EVPN route entry, | |
1430 | * program the nh as neigh | |
1431 | */ | |
1432 | if (CHECK_FLAG(api.flags, | |
1433 | ZEBRA_FLAG_EVPN_ROUTE)) { | |
1434 | SET_FLAG(nexthop->flags, | |
1435 | NEXTHOP_FLAG_EVPN_RVTEP); | |
1436 | vtep_ip.ipa_type = IPADDR_V4; | |
1437 | memcpy(&(vtep_ip.ipaddr_v4), | |
1438 | &(api_nh->gate.ipv4), | |
1439 | sizeof(struct in_addr)); | |
1440 | zebra_vxlan_evpn_vrf_route_add( | |
a317a9b9 | 1441 | vrf_id, &api_nh->rmac, &vtep_ip, |
bf094f69 QY |
1442 | &api.prefix); |
1443 | } | |
1444 | break; | |
1445 | case NEXTHOP_TYPE_IPV6: | |
1446 | nexthop = route_entry_nexthop_ipv6_add( | |
1447 | re, &api_nh->gate.ipv6, api_nh->vrf_id); | |
1448 | break; | |
1449 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1450 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
1451 | if (CHECK_FLAG(api.flags, | |
1452 | ZEBRA_FLAG_EVPN_ROUTE)) { | |
1453 | ifindex = get_l3vni_svi_ifindex(vrf_id); | |
1454 | } else { | |
1455 | ifindex = api_nh->ifindex; | |
1456 | } | |
1457 | ||
1458 | nexthop = route_entry_nexthop_ipv6_ifindex_add( | |
1459 | re, &api_nh->gate.ipv6, ifindex, | |
1460 | api_nh->vrf_id); | |
1461 | ||
1462 | /* if this an EVPN route entry, | |
1463 | * program the nh as neigh | |
1464 | */ | |
1465 | if (CHECK_FLAG(api.flags, | |
1466 | ZEBRA_FLAG_EVPN_ROUTE)) { | |
1467 | SET_FLAG(nexthop->flags, | |
1468 | NEXTHOP_FLAG_EVPN_RVTEP); | |
1469 | vtep_ip.ipa_type = IPADDR_V6; | |
1470 | memcpy(&vtep_ip.ipaddr_v6, | |
1471 | &(api_nh->gate.ipv6), | |
1472 | sizeof(struct in6_addr)); | |
1473 | zebra_vxlan_evpn_vrf_route_add( | |
a317a9b9 | 1474 | vrf_id, &api_nh->rmac, &vtep_ip, |
bf094f69 QY |
1475 | &api.prefix); |
1476 | } | |
1477 | break; | |
1478 | case NEXTHOP_TYPE_BLACKHOLE: | |
1479 | nexthop = route_entry_nexthop_blackhole_add( | |
1480 | re, api_nh->bh_type); | |
1481 | break; | |
1482 | } | |
1483 | ||
1484 | if (!nexthop) { | |
9df414fe | 1485 | flog_warn( |
e914ccbe | 1486 | EC_ZEBRA_NEXTHOP_CREATION_FAILED, |
bf094f69 QY |
1487 | "%s: Nexthops Specified: %d but we failed to properly create one", |
1488 | __PRETTY_FUNCTION__, api.nexthop_num); | |
1489 | nexthops_free(re->ng.nexthop); | |
1490 | XFREE(MTYPE_RE, re); | |
1491 | return; | |
1492 | } | |
1493 | /* MPLS labels for BGP-LU or Segment Routing */ | |
1494 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) | |
1495 | && api_nh->type != NEXTHOP_TYPE_IFINDEX | |
1496 | && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) { | |
1497 | enum lsp_types_t label_type; | |
1498 | ||
1499 | label_type = | |
1500 | lsp_type_from_re_type(client->proto); | |
1501 | ||
1502 | if (IS_ZEBRA_DEBUG_RECV) { | |
1503 | zlog_debug( | |
1504 | "%s: adding %d labels of type %d (1st=%u)", | |
1505 | __func__, api_nh->label_num, | |
1506 | label_type, api_nh->labels[0]); | |
1507 | } | |
1508 | ||
1509 | nexthop_add_labels(nexthop, label_type, | |
1510 | api_nh->label_num, | |
1511 | &api_nh->labels[0]); | |
1512 | } | |
1513 | } | |
bf094f69 QY |
1514 | |
1515 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) | |
1516 | re->distance = api.distance; | |
1517 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1518 | re->metric = api.metric; | |
1519 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1520 | re->tag = api.tag; | |
1521 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_MTU)) | |
1522 | re->mtu = api.mtu; | |
1523 | ||
1524 | afi = family2afi(api.prefix.family); | |
1525 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1526 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1527 | "%s: Received SRC Prefix but afi is not v6", |
bf094f69 QY |
1528 | __PRETTY_FUNCTION__); |
1529 | nexthops_free(re->ng.nexthop); | |
1530 | XFREE(MTYPE_RE, re); | |
1531 | return; | |
1532 | } | |
1533 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1534 | src_p = &api.src_prefix; | |
1535 | ||
1536 | ret = rib_add_multipath(afi, api.safi, &api.prefix, src_p, re); | |
1537 | ||
1538 | /* Stats */ | |
1539 | switch (api.prefix.family) { | |
1540 | case AF_INET: | |
1541 | if (ret > 0) | |
1542 | client->v4_route_add_cnt++; | |
1543 | else if (ret < 0) | |
1544 | client->v4_route_upd8_cnt++; | |
1545 | break; | |
1546 | case AF_INET6: | |
1547 | if (ret > 0) | |
1548 | client->v6_route_add_cnt++; | |
1549 | else if (ret < 0) | |
1550 | client->v6_route_upd8_cnt++; | |
1551 | break; | |
1552 | } | |
1553 | } | |
1554 | ||
1555 | static void zread_route_del(ZAPI_HANDLER_ARGS) | |
1556 | { | |
1557 | struct stream *s; | |
1558 | struct zapi_route api; | |
1559 | afi_t afi; | |
1560 | struct prefix_ipv6 *src_p = NULL; | |
1561 | uint32_t table_id; | |
1562 | ||
1563 | s = msg; | |
1564 | if (zapi_route_decode(s, &api) < 0) | |
1565 | return; | |
1566 | ||
1567 | afi = family2afi(api.prefix.family); | |
1568 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1569 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1570 | "%s: Received a src prefix while afi is not v6", |
bf094f69 QY |
1571 | __PRETTY_FUNCTION__); |
1572 | return; | |
1573 | } | |
1574 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1575 | src_p = &api.src_prefix; | |
1576 | ||
1577 | if (api.vrf_id == VRF_DEFAULT && api.tableid != 0) | |
1578 | table_id = api.tableid; | |
1579 | else | |
1580 | table_id = zvrf->table_id; | |
1581 | ||
1582 | rib_delete(afi, api.safi, zvrf_id(zvrf), api.type, api.instance, | |
1583 | api.flags, &api.prefix, src_p, NULL, table_id, api.metric, | |
40ecd8e4 | 1584 | api.distance, false); |
bf094f69 QY |
1585 | |
1586 | /* Stats */ | |
1587 | switch (api.prefix.family) { | |
1588 | case AF_INET: | |
1589 | client->v4_route_del_cnt++; | |
1590 | break; | |
1591 | case AF_INET6: | |
1592 | client->v6_route_del_cnt++; | |
1593 | break; | |
1594 | } | |
1595 | } | |
1596 | ||
bf094f69 QY |
1597 | /* MRIB Nexthop lookup for IPv4. */ |
1598 | static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS) | |
1599 | { | |
1600 | struct in_addr addr; | |
1601 | struct route_entry *re; | |
1602 | ||
1603 | STREAM_GET(&addr.s_addr, msg, IPV4_MAX_BYTELEN); | |
1604 | re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
1605 | zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); | |
1606 | ||
1607 | stream_failure: | |
1608 | return; | |
1609 | } | |
1610 | ||
bf094f69 QY |
1611 | /* Register zebra server router-id information. Send current router-id */ |
1612 | static void zread_router_id_add(ZAPI_HANDLER_ARGS) | |
1613 | { | |
1614 | struct prefix p; | |
1615 | ||
1616 | /* Router-id information is needed. */ | |
1617 | vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); | |
1618 | ||
1619 | router_id_get(&p, zvrf_id(zvrf)); | |
1620 | ||
1621 | zsend_router_id_update(client, &p, zvrf_id(zvrf)); | |
1622 | } | |
1623 | ||
1624 | /* Unregister zebra server router-id information. */ | |
1625 | static void zread_router_id_delete(ZAPI_HANDLER_ARGS) | |
1626 | { | |
1627 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1628 | } | |
1629 | ||
1630 | static void zsend_capabilities(struct zserv *client, struct zebra_vrf *zvrf) | |
1631 | { | |
1632 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1633 | ||
1634 | zclient_create_header(s, ZEBRA_CAPABILITIES, zvrf->vrf->vrf_id); | |
1635 | stream_putc(s, mpls_enabled); | |
1636 | stream_putl(s, multipath_num); | |
1637 | ||
1638 | stream_putw_at(s, 0, stream_get_endp(s)); | |
21ccc0cf | 1639 | zserv_send_message(client, s); |
bf094f69 QY |
1640 | } |
1641 | ||
1642 | /* Tie up route-type and client->sock */ | |
1643 | static void zread_hello(ZAPI_HANDLER_ARGS) | |
1644 | { | |
1645 | /* type of protocol (lib/zebra.h) */ | |
1646 | uint8_t proto; | |
1647 | unsigned short instance; | |
1648 | uint8_t notify; | |
1649 | ||
1650 | STREAM_GETC(msg, proto); | |
1651 | STREAM_GETW(msg, instance); | |
1652 | STREAM_GETC(msg, notify); | |
1653 | if (notify) | |
1654 | client->notify_owner = true; | |
1655 | ||
1656 | /* accept only dynamic routing protocols */ | |
f23cbcda | 1657 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_CONNECT)) { |
bf094f69 QY |
1658 | zlog_notice( |
1659 | "client %d says hello and bids fair to announce only %s routes vrf=%u", | |
1660 | client->sock, zebra_route_string(proto), | |
1661 | zvrf->vrf->vrf_id); | |
1662 | if (instance) | |
1663 | zlog_notice("client protocol instance %d", instance); | |
1664 | ||
1665 | client->proto = proto; | |
1666 | client->instance = instance; | |
1667 | } | |
1668 | ||
1669 | zsend_capabilities(client, zvrf); | |
1670 | stream_failure: | |
1671 | return; | |
1672 | } | |
1673 | ||
1674 | /* Unregister all information in a VRF. */ | |
1675 | static void zread_vrf_unregister(ZAPI_HANDLER_ARGS) | |
1676 | { | |
1677 | int i; | |
1678 | afi_t afi; | |
1679 | ||
1680 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1681 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
1682 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
1683 | vrf_bitmap_unset(client->redist_default, zvrf_id(zvrf)); | |
1684 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); | |
1685 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1686 | } | |
1687 | ||
1688 | static void zread_mpls_labels(ZAPI_HANDLER_ARGS) | |
1689 | { | |
1690 | struct stream *s; | |
1691 | enum lsp_types_t type; | |
1692 | struct prefix prefix; | |
1693 | enum nexthop_types_t gtype; | |
1694 | union g_addr gate; | |
1695 | ifindex_t ifindex; | |
1696 | mpls_label_t in_label, out_label; | |
1697 | uint8_t distance; | |
1698 | ||
1699 | /* Get input stream. */ | |
1700 | s = msg; | |
1701 | ||
1702 | /* Get data. */ | |
1703 | STREAM_GETC(s, type); | |
1704 | STREAM_GETL(s, prefix.family); | |
1705 | switch (prefix.family) { | |
1706 | case AF_INET: | |
1707 | STREAM_GET(&prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1708 | STREAM_GETC(s, prefix.prefixlen); | |
1709 | if (prefix.prefixlen > IPV4_MAX_BITLEN) { | |
9df414fe | 1710 | zlog_debug( |
bf094f69 QY |
1711 | "%s: Specified prefix length %d is greater than a v4 address can support", |
1712 | __PRETTY_FUNCTION__, prefix.prefixlen); | |
1713 | return; | |
1714 | } | |
1715 | STREAM_GET(&gate.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
1716 | break; | |
1717 | case AF_INET6: | |
1718 | STREAM_GET(&prefix.u.prefix6, s, 16); | |
1719 | STREAM_GETC(s, prefix.prefixlen); | |
1720 | if (prefix.prefixlen > IPV6_MAX_BITLEN) { | |
9df414fe | 1721 | zlog_debug( |
bf094f69 QY |
1722 | "%s: Specified prefix length %d is greater than a v6 address can support", |
1723 | __PRETTY_FUNCTION__, prefix.prefixlen); | |
1724 | return; | |
1725 | } | |
1726 | STREAM_GET(&gate.ipv6, s, 16); | |
1727 | break; | |
1728 | default: | |
9df414fe QY |
1729 | zlog_debug("%s: Specified AF %d is not supported for this call", |
1730 | __PRETTY_FUNCTION__, prefix.family); | |
bf094f69 QY |
1731 | return; |
1732 | } | |
1733 | STREAM_GETL(s, ifindex); | |
1734 | STREAM_GETC(s, distance); | |
1735 | STREAM_GETL(s, in_label); | |
1736 | STREAM_GETL(s, out_label); | |
1737 | ||
1738 | switch (prefix.family) { | |
1739 | case AF_INET: | |
1740 | if (ifindex) | |
1741 | gtype = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1742 | else | |
1743 | gtype = NEXTHOP_TYPE_IPV4; | |
1744 | break; | |
1745 | case AF_INET6: | |
1746 | if (ifindex) | |
1747 | gtype = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1748 | else | |
1749 | gtype = NEXTHOP_TYPE_IPV6; | |
1750 | break; | |
1751 | default: | |
1752 | return; | |
1753 | } | |
1754 | ||
1755 | if (!mpls_enabled) | |
1756 | return; | |
1757 | ||
1758 | if (hdr->command == ZEBRA_MPLS_LABELS_ADD) { | |
1759 | mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, | |
1760 | ifindex); | |
1761 | mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1762 | distance, out_label); | |
1763 | } else if (hdr->command == ZEBRA_MPLS_LABELS_DELETE) { | |
1764 | mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, ifindex); | |
1765 | mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1766 | distance, out_label); | |
1767 | } | |
1768 | stream_failure: | |
1769 | return; | |
1770 | } | |
1771 | ||
1772 | /* Send response to a table manager connect request to client */ | |
1773 | static void zread_table_manager_connect(struct zserv *client, | |
1774 | struct stream *msg, vrf_id_t vrf_id) | |
1775 | { | |
1776 | struct stream *s; | |
1777 | uint8_t proto; | |
1778 | uint16_t instance; | |
1779 | ||
1780 | s = msg; | |
1781 | ||
1782 | /* Get data. */ | |
1783 | STREAM_GETC(s, proto); | |
1784 | STREAM_GETW(s, instance); | |
1785 | ||
1786 | /* accept only dynamic routing protocols */ | |
1787 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 1788 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
1789 | "client %d has wrong protocol %s", client->sock, |
1790 | zebra_route_string(proto)); | |
bf094f69 QY |
1791 | zsend_table_manager_connect_response(client, vrf_id, 1); |
1792 | return; | |
1793 | } | |
1794 | zlog_notice("client %d with vrf %u instance %u connected as %s", | |
1795 | client->sock, vrf_id, instance, zebra_route_string(proto)); | |
1796 | client->proto = proto; | |
1797 | client->instance = instance; | |
1798 | ||
1799 | /* | |
1800 | * Release previous labels of same protocol and instance. | |
1801 | * This is done in case it restarted from an unexpected shutdown. | |
1802 | */ | |
453844ab | 1803 | release_daemon_table_chunks(client); |
bf094f69 QY |
1804 | |
1805 | zsend_table_manager_connect_response(client, vrf_id, 0); | |
1806 | ||
1807 | stream_failure: | |
1808 | return; | |
1809 | } | |
1810 | ||
1811 | static void zread_label_manager_connect(struct zserv *client, | |
1812 | struct stream *msg, vrf_id_t vrf_id) | |
1813 | { | |
1814 | struct stream *s; | |
1815 | /* type of protocol (lib/zebra.h) */ | |
1816 | uint8_t proto; | |
1817 | unsigned short instance; | |
1818 | ||
1819 | /* Get input stream. */ | |
1820 | s = msg; | |
1821 | ||
1822 | /* Get data. */ | |
1823 | STREAM_GETC(s, proto); | |
1824 | STREAM_GETW(s, instance); | |
1825 | ||
1826 | /* accept only dynamic routing protocols */ | |
1827 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 1828 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
1829 | "client %d has wrong protocol %s", client->sock, |
1830 | zebra_route_string(proto)); | |
f533be73 | 1831 | if (client->is_synchronous) |
1832 | zsend_label_manager_connect_response(client, vrf_id, 1); | |
bf094f69 QY |
1833 | return; |
1834 | } | |
1835 | zlog_notice("client %d with vrf %u instance %u connected as %s", | |
1836 | client->sock, vrf_id, instance, zebra_route_string(proto)); | |
1837 | client->proto = proto; | |
1838 | client->instance = instance; | |
1839 | ||
1840 | /* | |
453844ab QY |
1841 | * Release previous labels of same protocol and instance. |
1842 | * This is done in case it restarted from an unexpected shutdown. | |
1843 | */ | |
1844 | release_daemon_label_chunks(client); | |
bf094f69 QY |
1845 | |
1846 | zlog_debug( | |
1847 | " Label Manager client connected: sock %d, proto %s, vrf %u instance %u", | |
1848 | client->sock, zebra_route_string(proto), vrf_id, instance); | |
1849 | /* send response back */ | |
f533be73 | 1850 | if (client->is_synchronous) |
1851 | zsend_label_manager_connect_response(client, vrf_id, 0); | |
bf094f69 QY |
1852 | |
1853 | stream_failure: | |
1854 | return; | |
1855 | } | |
1856 | ||
1857 | static void zread_get_label_chunk(struct zserv *client, struct stream *msg, | |
1858 | vrf_id_t vrf_id) | |
1859 | { | |
1860 | struct stream *s; | |
1861 | uint8_t keep; | |
1862 | uint32_t size; | |
1863 | struct label_manager_chunk *lmc; | |
5dffb0e9 FR |
1864 | uint8_t proto; |
1865 | unsigned short instance; | |
bf094f69 QY |
1866 | |
1867 | /* Get input stream. */ | |
1868 | s = msg; | |
1869 | ||
1870 | /* Get data. */ | |
5dffb0e9 FR |
1871 | STREAM_GETC(s, proto); |
1872 | STREAM_GETW(s, instance); | |
bf094f69 QY |
1873 | STREAM_GETC(s, keep); |
1874 | STREAM_GETL(s, size); | |
1875 | ||
f533be73 | 1876 | lmc = assign_label_chunk(proto, instance, keep, size); |
bf094f69 | 1877 | if (!lmc) |
af4c2728 | 1878 | flog_err( |
e914ccbe | 1879 | EC_ZEBRA_LM_CANNOT_ASSIGN_CHUNK, |
0313523d | 1880 | "Unable to assign Label Chunk of size %u to %s instance %u", |
f533be73 | 1881 | size, zebra_route_string(proto), instance); |
bf094f69 | 1882 | else |
0313523d FR |
1883 | zlog_debug("Assigned Label Chunk %u - %u to %s instance %u", |
1884 | lmc->start, lmc->end, | |
f533be73 | 1885 | zebra_route_string(proto), instance); |
bf094f69 QY |
1886 | /* send response back */ |
1887 | zsend_assign_label_chunk_response(client, vrf_id, lmc); | |
1888 | ||
1889 | stream_failure: | |
1890 | return; | |
1891 | } | |
1892 | ||
1893 | static void zread_release_label_chunk(struct zserv *client, struct stream *msg) | |
1894 | { | |
1895 | struct stream *s; | |
1896 | uint32_t start, end; | |
5dffb0e9 FR |
1897 | uint8_t proto; |
1898 | unsigned short instance; | |
bf094f69 QY |
1899 | |
1900 | /* Get input stream. */ | |
1901 | s = msg; | |
1902 | ||
1903 | /* Get data. */ | |
5dffb0e9 FR |
1904 | STREAM_GETC(s, proto); |
1905 | STREAM_GETW(s, instance); | |
bf094f69 QY |
1906 | STREAM_GETL(s, start); |
1907 | STREAM_GETL(s, end); | |
1908 | ||
f533be73 | 1909 | release_label_chunk(proto, instance, start, end); |
bf094f69 QY |
1910 | |
1911 | stream_failure: | |
1912 | return; | |
1913 | } | |
1914 | static void zread_label_manager_request(ZAPI_HANDLER_ARGS) | |
1915 | { | |
1916 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
f533be73 | 1917 | client->is_synchronous = hdr->command == |
1918 | ZEBRA_LABEL_MANAGER_CONNECT; | |
bf094f69 QY |
1919 | |
1920 | /* external label manager */ | |
1921 | if (lm_is_external) | |
0313523d | 1922 | zread_relay_label_manager_request(hdr->command, client, msg, |
bf094f69 QY |
1923 | zvrf_id(zvrf)); |
1924 | /* this is a label manager */ | |
1925 | else { | |
f533be73 | 1926 | if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT || |
1927 | hdr->command == ZEBRA_LABEL_MANAGER_CONNECT_ASYNC) | |
bf094f69 QY |
1928 | zread_label_manager_connect(client, msg, zvrf_id(zvrf)); |
1929 | else { | |
bf094f69 QY |
1930 | if (hdr->command == ZEBRA_GET_LABEL_CHUNK) |
1931 | zread_get_label_chunk(client, msg, | |
1932 | zvrf_id(zvrf)); | |
1933 | else if (hdr->command == ZEBRA_RELEASE_LABEL_CHUNK) | |
1934 | zread_release_label_chunk(client, msg); | |
1935 | } | |
1936 | } | |
1937 | } | |
1938 | ||
1939 | static void zread_get_table_chunk(struct zserv *client, struct stream *msg, | |
1940 | vrf_id_t vrf_id) | |
1941 | { | |
1942 | struct stream *s; | |
1943 | uint32_t size; | |
1944 | struct table_manager_chunk *tmc; | |
1945 | ||
1946 | /* Get input stream. */ | |
1947 | s = msg; | |
1948 | ||
1949 | /* Get data. */ | |
1950 | STREAM_GETL(s, size); | |
1951 | ||
1952 | tmc = assign_table_chunk(client->proto, client->instance, size); | |
1953 | if (!tmc) | |
e914ccbe | 1954 | flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK, |
1c50c1c0 QY |
1955 | "%s: Unable to assign Table Chunk of size %u", |
1956 | __func__, size); | |
bf094f69 QY |
1957 | else |
1958 | zlog_debug("Assigned Table Chunk %u - %u", tmc->start, | |
1959 | tmc->end); | |
1960 | /* send response back */ | |
1961 | zsend_assign_table_chunk_response(client, vrf_id, tmc); | |
1962 | ||
1963 | stream_failure: | |
1964 | return; | |
1965 | } | |
1966 | ||
1967 | static void zread_release_table_chunk(struct zserv *client, struct stream *msg) | |
1968 | { | |
1969 | struct stream *s; | |
1970 | uint32_t start, end; | |
1971 | ||
1972 | /* Get input stream. */ | |
1973 | s = msg; | |
1974 | ||
1975 | /* Get data. */ | |
1976 | STREAM_GETL(s, start); | |
1977 | STREAM_GETL(s, end); | |
1978 | ||
1979 | release_table_chunk(client->proto, client->instance, start, end); | |
1980 | ||
1981 | stream_failure: | |
1982 | return; | |
1983 | } | |
1984 | ||
1985 | static void zread_table_manager_request(ZAPI_HANDLER_ARGS) | |
1986 | { | |
1987 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
1988 | if (hdr->command == ZEBRA_TABLE_MANAGER_CONNECT) | |
1989 | zread_table_manager_connect(client, msg, zvrf_id(zvrf)); | |
1990 | else { | |
1991 | /* Sanity: don't allow 'unidentified' requests */ | |
1992 | if (!client->proto) { | |
af4c2728 | 1993 | flog_err( |
e914ccbe | 1994 | EC_ZEBRA_TM_ALIENS, |
bf094f69 QY |
1995 | "Got table request from an unidentified client"); |
1996 | return; | |
1997 | } | |
1998 | if (hdr->command == ZEBRA_GET_TABLE_CHUNK) | |
1999 | zread_get_table_chunk(client, msg, zvrf_id(zvrf)); | |
2000 | else if (hdr->command == ZEBRA_RELEASE_TABLE_CHUNK) | |
2001 | zread_release_table_chunk(client, msg); | |
2002 | } | |
2003 | } | |
2004 | ||
2005 | static void zread_pseudowire(ZAPI_HANDLER_ARGS) | |
2006 | { | |
2007 | struct stream *s; | |
2008 | char ifname[IF_NAMESIZE]; | |
2009 | ifindex_t ifindex; | |
2010 | int type; | |
2011 | int af; | |
2012 | union g_addr nexthop; | |
2013 | uint32_t local_label; | |
2014 | uint32_t remote_label; | |
2015 | uint8_t flags; | |
2016 | union pw_protocol_fields data; | |
2017 | uint8_t protocol; | |
2018 | struct zebra_pw *pw; | |
2019 | ||
2020 | /* Get input stream. */ | |
2021 | s = msg; | |
2022 | ||
2023 | /* Get data. */ | |
2024 | STREAM_GET(ifname, s, IF_NAMESIZE); | |
2025 | STREAM_GETL(s, ifindex); | |
2026 | STREAM_GETL(s, type); | |
2027 | STREAM_GETL(s, af); | |
2028 | switch (af) { | |
2029 | case AF_INET: | |
2030 | STREAM_GET(&nexthop.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
2031 | break; | |
2032 | case AF_INET6: | |
2033 | STREAM_GET(&nexthop.ipv6, s, 16); | |
2034 | break; | |
2035 | default: | |
2036 | return; | |
2037 | } | |
2038 | STREAM_GETL(s, local_label); | |
2039 | STREAM_GETL(s, remote_label); | |
2040 | STREAM_GETC(s, flags); | |
2041 | STREAM_GET(&data, s, sizeof(data)); | |
2042 | protocol = client->proto; | |
2043 | ||
2044 | pw = zebra_pw_find(zvrf, ifname); | |
2045 | switch (hdr->command) { | |
2046 | case ZEBRA_PW_ADD: | |
2047 | if (pw) { | |
e914ccbe | 2048 | flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS, |
9df414fe | 2049 | "%s: pseudowire %s already exists [%s]", |
bf094f69 QY |
2050 | __func__, ifname, |
2051 | zserv_command_string(hdr->command)); | |
2052 | return; | |
2053 | } | |
2054 | ||
2055 | zebra_pw_add(zvrf, ifname, protocol, client); | |
2056 | break; | |
2057 | case ZEBRA_PW_DELETE: | |
2058 | if (!pw) { | |
e914ccbe | 2059 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2060 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2061 | ifname, zserv_command_string(hdr->command)); |
2062 | return; | |
2063 | } | |
2064 | ||
2065 | zebra_pw_del(zvrf, pw); | |
2066 | break; | |
2067 | case ZEBRA_PW_SET: | |
2068 | case ZEBRA_PW_UNSET: | |
2069 | if (!pw) { | |
e914ccbe | 2070 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2071 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2072 | ifname, zserv_command_string(hdr->command)); |
2073 | return; | |
2074 | } | |
2075 | ||
2076 | switch (hdr->command) { | |
2077 | case ZEBRA_PW_SET: | |
2078 | pw->enabled = 1; | |
2079 | break; | |
2080 | case ZEBRA_PW_UNSET: | |
2081 | pw->enabled = 0; | |
2082 | break; | |
2083 | } | |
2084 | ||
2085 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
2086 | remote_label, flags, &data); | |
2087 | break; | |
2088 | } | |
2089 | ||
2090 | stream_failure: | |
2091 | return; | |
2092 | } | |
2093 | ||
2094 | static void zread_interface_set_master(ZAPI_HANDLER_ARGS) | |
2095 | { | |
2096 | struct interface *master; | |
2097 | struct interface *slave; | |
2098 | struct stream *s = msg; | |
2099 | int ifindex; | |
2100 | vrf_id_t vrf_id; | |
2101 | ||
2102 | STREAM_GETL(s, vrf_id); | |
2103 | STREAM_GETL(s, ifindex); | |
2104 | master = if_lookup_by_index(ifindex, vrf_id); | |
2105 | ||
2106 | STREAM_GETL(s, vrf_id); | |
2107 | STREAM_GETL(s, ifindex); | |
2108 | slave = if_lookup_by_index(ifindex, vrf_id); | |
2109 | ||
2110 | if (!master || !slave) | |
2111 | return; | |
2112 | ||
2113 | kernel_interface_set_master(master, slave); | |
2114 | ||
2115 | stream_failure: | |
2116 | return; | |
2117 | } | |
2118 | ||
2119 | ||
2120 | static void zread_vrf_label(ZAPI_HANDLER_ARGS) | |
2121 | { | |
2122 | struct interface *ifp; | |
2123 | mpls_label_t nlabel; | |
2124 | afi_t afi; | |
2125 | struct stream *s; | |
2126 | struct zebra_vrf *def_zvrf; | |
2127 | enum lsp_types_t ltype; | |
2128 | ||
2129 | s = msg; | |
2130 | STREAM_GETL(s, nlabel); | |
2131 | STREAM_GETC(s, afi); | |
2132 | if (nlabel == zvrf->label[afi]) { | |
2133 | /* | |
2134 | * Nothing to do here move along | |
2135 | */ | |
2136 | return; | |
2137 | } | |
2138 | ||
2139 | STREAM_GETC(s, ltype); | |
2140 | ||
2141 | if (zvrf->vrf->vrf_id != VRF_DEFAULT) | |
2142 | ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id); | |
2143 | else | |
2144 | ifp = if_lookup_by_name("lo", VRF_DEFAULT); | |
2145 | ||
2146 | if (!ifp) { | |
2147 | zlog_debug("Unable to find specified Interface for %s", | |
2148 | zvrf->vrf->name); | |
2149 | return; | |
2150 | } | |
2151 | ||
2152 | def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT); | |
2153 | ||
2154 | if (zvrf->label[afi] != MPLS_LABEL_NONE) { | |
2155 | afi_t scrubber; | |
2156 | bool really_remove; | |
2157 | ||
2158 | really_remove = true; | |
2159 | for (scrubber = AFI_IP; scrubber < AFI_MAX; scrubber++) { | |
2160 | if (scrubber == afi) | |
2161 | continue; | |
2162 | ||
2163 | if (zvrf->label[scrubber] == MPLS_LABEL_NONE) | |
2164 | continue; | |
2165 | ||
2166 | if (zvrf->label[afi] == zvrf->label[scrubber]) { | |
2167 | really_remove = false; | |
2168 | break; | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | if (really_remove) | |
2173 | mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label[afi], | |
2174 | NEXTHOP_TYPE_IFINDEX, NULL, | |
2175 | ifp->ifindex); | |
2176 | } | |
2177 | ||
2178 | if (nlabel != MPLS_LABEL_NONE) | |
2179 | mpls_lsp_install(def_zvrf, ltype, nlabel, | |
2180 | MPLS_LABEL_IMPLICIT_NULL, NEXTHOP_TYPE_IFINDEX, | |
2181 | NULL, ifp->ifindex); | |
2182 | ||
2183 | zvrf->label[afi] = nlabel; | |
2184 | stream_failure: | |
2185 | return; | |
2186 | } | |
2187 | ||
2188 | static inline void zread_rule(ZAPI_HANDLER_ARGS) | |
2189 | { | |
2190 | struct zebra_pbr_rule zpr; | |
2191 | struct stream *s; | |
2192 | uint32_t total, i; | |
2193 | ifindex_t ifindex; | |
2194 | ||
2195 | s = msg; | |
2196 | STREAM_GETL(s, total); | |
2197 | ||
2198 | for (i = 0; i < total; i++) { | |
2199 | memset(&zpr, 0, sizeof(zpr)); | |
2200 | ||
2201 | zpr.sock = client->sock; | |
2202 | zpr.rule.vrf_id = hdr->vrf_id; | |
2203 | STREAM_GETL(s, zpr.rule.seq); | |
2204 | STREAM_GETL(s, zpr.rule.priority); | |
2205 | STREAM_GETL(s, zpr.rule.unique); | |
2206 | STREAM_GETC(s, zpr.rule.filter.src_ip.family); | |
2207 | STREAM_GETC(s, zpr.rule.filter.src_ip.prefixlen); | |
2208 | STREAM_GET(&zpr.rule.filter.src_ip.u.prefix, s, | |
2209 | prefix_blen(&zpr.rule.filter.src_ip)); | |
2210 | STREAM_GETW(s, zpr.rule.filter.src_port); | |
2211 | STREAM_GETC(s, zpr.rule.filter.dst_ip.family); | |
2212 | STREAM_GETC(s, zpr.rule.filter.dst_ip.prefixlen); | |
2213 | STREAM_GET(&zpr.rule.filter.dst_ip.u.prefix, s, | |
2214 | prefix_blen(&zpr.rule.filter.dst_ip)); | |
2215 | STREAM_GETW(s, zpr.rule.filter.dst_port); | |
2216 | STREAM_GETL(s, zpr.rule.filter.fwmark); | |
2217 | STREAM_GETL(s, zpr.rule.action.table); | |
2218 | STREAM_GETL(s, ifindex); | |
2219 | ||
2220 | if (ifindex) { | |
06432d4e PG |
2221 | zpr.ifp = if_lookup_by_index_per_ns( |
2222 | zvrf->zns, | |
2223 | ifindex); | |
bf094f69 QY |
2224 | if (!zpr.ifp) { |
2225 | zlog_debug("Failed to lookup ifindex: %u", | |
2226 | ifindex); | |
2227 | return; | |
2228 | } | |
2229 | } | |
2230 | ||
2231 | if (!is_default_prefix(&zpr.rule.filter.src_ip)) | |
2232 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_IP; | |
2233 | ||
2234 | if (!is_default_prefix(&zpr.rule.filter.dst_ip)) | |
2235 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_IP; | |
2236 | ||
2237 | if (zpr.rule.filter.src_port) | |
2238 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_PORT; | |
2239 | ||
2240 | if (zpr.rule.filter.dst_port) | |
2241 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_PORT; | |
2242 | ||
2243 | if (zpr.rule.filter.fwmark) | |
2244 | zpr.rule.filter.filter_bm |= PBR_FILTER_FWMARK; | |
2245 | ||
2246 | if (hdr->command == ZEBRA_RULE_ADD) | |
2247 | zebra_pbr_add_rule(zvrf->zns, &zpr); | |
2248 | else | |
2249 | zebra_pbr_del_rule(zvrf->zns, &zpr); | |
2250 | } | |
2251 | ||
2252 | stream_failure: | |
2253 | return; | |
2254 | } | |
2255 | ||
2256 | static inline void zread_ipset(ZAPI_HANDLER_ARGS) | |
2257 | { | |
2258 | struct zebra_pbr_ipset zpi; | |
2259 | struct stream *s; | |
2260 | uint32_t total, i; | |
2261 | ||
2262 | s = msg; | |
2263 | STREAM_GETL(s, total); | |
2264 | ||
2265 | for (i = 0; i < total; i++) { | |
2266 | memset(&zpi, 0, sizeof(zpi)); | |
2267 | ||
2268 | zpi.sock = client->sock; | |
be2028d1 | 2269 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2270 | STREAM_GETL(s, zpi.unique); |
2271 | STREAM_GETL(s, zpi.type); | |
2272 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2273 | ||
2274 | if (hdr->command == ZEBRA_IPSET_CREATE) | |
2275 | zebra_pbr_create_ipset(zvrf->zns, &zpi); | |
2276 | else | |
2277 | zebra_pbr_destroy_ipset(zvrf->zns, &zpi); | |
2278 | } | |
2279 | ||
2280 | stream_failure: | |
2281 | return; | |
2282 | } | |
2283 | ||
2284 | static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS) | |
2285 | { | |
2286 | struct zebra_pbr_ipset_entry zpi; | |
2287 | struct zebra_pbr_ipset ipset; | |
2288 | struct stream *s; | |
2289 | uint32_t total, i; | |
2290 | ||
2291 | s = msg; | |
2292 | STREAM_GETL(s, total); | |
2293 | ||
2294 | for (i = 0; i < total; i++) { | |
2295 | memset(&zpi, 0, sizeof(zpi)); | |
2296 | memset(&ipset, 0, sizeof(ipset)); | |
2297 | ||
2298 | zpi.sock = client->sock; | |
2299 | STREAM_GETL(s, zpi.unique); | |
2300 | STREAM_GET(&ipset.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2301 | STREAM_GETC(s, zpi.src.family); | |
2302 | STREAM_GETC(s, zpi.src.prefixlen); | |
2303 | STREAM_GET(&zpi.src.u.prefix, s, prefix_blen(&zpi.src)); | |
2304 | STREAM_GETC(s, zpi.dst.family); | |
2305 | STREAM_GETC(s, zpi.dst.prefixlen); | |
2306 | STREAM_GET(&zpi.dst.u.prefix, s, prefix_blen(&zpi.dst)); | |
2307 | ||
25d760c5 PG |
2308 | STREAM_GETW(s, zpi.src_port_min); |
2309 | STREAM_GETW(s, zpi.src_port_max); | |
2310 | STREAM_GETW(s, zpi.dst_port_min); | |
2311 | STREAM_GETW(s, zpi.dst_port_max); | |
2312 | STREAM_GETC(s, zpi.proto); | |
bf094f69 QY |
2313 | if (!is_default_prefix(&zpi.src)) |
2314 | zpi.filter_bm |= PBR_FILTER_SRC_IP; | |
2315 | ||
2316 | if (!is_default_prefix(&zpi.dst)) | |
2317 | zpi.filter_bm |= PBR_FILTER_DST_IP; | |
be729dd7 | 2318 | if (zpi.dst_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 | 2319 | zpi.filter_bm |= PBR_FILTER_DST_PORT; |
be729dd7 | 2320 | if (zpi.src_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 PG |
2321 | zpi.filter_bm |= PBR_FILTER_SRC_PORT; |
2322 | if (zpi.dst_port_max != 0) | |
2323 | zpi.filter_bm |= PBR_FILTER_DST_PORT_RANGE; | |
2324 | if (zpi.src_port_max != 0) | |
2325 | zpi.filter_bm |= PBR_FILTER_SRC_PORT_RANGE; | |
2326 | if (zpi.proto != 0) | |
2327 | zpi.filter_bm |= PBR_FILTER_PROTO; | |
bf094f69 QY |
2328 | |
2329 | /* calculate backpointer */ | |
2330 | zpi.backpointer = zebra_pbr_lookup_ipset_pername( | |
2331 | zvrf->zns, ipset.ipset_name); | |
2332 | if (hdr->command == ZEBRA_IPSET_ENTRY_ADD) | |
2333 | zebra_pbr_add_ipset_entry(zvrf->zns, &zpi); | |
2334 | else | |
2335 | zebra_pbr_del_ipset_entry(zvrf->zns, &zpi); | |
2336 | } | |
2337 | ||
2338 | stream_failure: | |
2339 | return; | |
2340 | } | |
2341 | ||
2342 | static inline void zread_iptable(ZAPI_HANDLER_ARGS) | |
2343 | { | |
2344 | struct zebra_pbr_iptable zpi; | |
2345 | struct stream *s; | |
2346 | ||
2347 | s = msg; | |
2348 | ||
2349 | memset(&zpi, 0, sizeof(zpi)); | |
2350 | ||
f80ec7e3 | 2351 | zpi.interface_name_list = list_new(); |
bf094f69 | 2352 | zpi.sock = client->sock; |
be2028d1 | 2353 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2354 | STREAM_GETL(s, zpi.unique); |
2355 | STREAM_GETL(s, zpi.type); | |
2356 | STREAM_GETL(s, zpi.filter_bm); | |
2357 | STREAM_GETL(s, zpi.action); | |
2358 | STREAM_GETL(s, zpi.fwmark); | |
2359 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
e7f7dad4 PG |
2360 | STREAM_GETW(s, zpi.pkt_len_min); |
2361 | STREAM_GETW(s, zpi.pkt_len_max); | |
dc993e76 PG |
2362 | STREAM_GETW(s, zpi.tcp_flags); |
2363 | STREAM_GETW(s, zpi.tcp_mask_flags); | |
4977bd6c | 2364 | STREAM_GETC(s, zpi.dscp_value); |
5ac5b7cc | 2365 | STREAM_GETC(s, zpi.fragment); |
f80ec7e3 PG |
2366 | STREAM_GETL(s, zpi.nb_interface); |
2367 | zebra_pbr_iptable_update_interfacelist(s, &zpi); | |
bf094f69 QY |
2368 | |
2369 | if (hdr->command == ZEBRA_IPTABLE_ADD) | |
2370 | zebra_pbr_add_iptable(zvrf->zns, &zpi); | |
2371 | else | |
2372 | zebra_pbr_del_iptable(zvrf->zns, &zpi); | |
2373 | stream_failure: | |
2374 | return; | |
2375 | } | |
2376 | ||
2377 | void (*zserv_handlers[])(ZAPI_HANDLER_ARGS) = { | |
2378 | [ZEBRA_ROUTER_ID_ADD] = zread_router_id_add, | |
2379 | [ZEBRA_ROUTER_ID_DELETE] = zread_router_id_delete, | |
2380 | [ZEBRA_INTERFACE_ADD] = zread_interface_add, | |
2381 | [ZEBRA_INTERFACE_DELETE] = zread_interface_delete, | |
2382 | [ZEBRA_ROUTE_ADD] = zread_route_add, | |
2383 | [ZEBRA_ROUTE_DELETE] = zread_route_del, | |
bf094f69 QY |
2384 | [ZEBRA_REDISTRIBUTE_ADD] = zebra_redistribute_add, |
2385 | [ZEBRA_REDISTRIBUTE_DELETE] = zebra_redistribute_delete, | |
2386 | [ZEBRA_REDISTRIBUTE_DEFAULT_ADD] = zebra_redistribute_default_add, | |
2387 | [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE] = zebra_redistribute_default_delete, | |
2388 | [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB] = zread_ipv4_nexthop_lookup_mrib, | |
2389 | [ZEBRA_HELLO] = zread_hello, | |
2390 | [ZEBRA_NEXTHOP_REGISTER] = zread_rnh_register, | |
2391 | [ZEBRA_NEXTHOP_UNREGISTER] = zread_rnh_unregister, | |
2392 | [ZEBRA_IMPORT_ROUTE_REGISTER] = zread_rnh_register, | |
2393 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = zread_rnh_unregister, | |
2394 | [ZEBRA_BFD_DEST_UPDATE] = zebra_ptm_bfd_dst_register, | |
2395 | [ZEBRA_BFD_DEST_REGISTER] = zebra_ptm_bfd_dst_register, | |
2396 | [ZEBRA_BFD_DEST_DEREGISTER] = zebra_ptm_bfd_dst_deregister, | |
d3af6147 RZ |
2397 | #if HAVE_BFDD > 0 |
2398 | [ZEBRA_BFD_DEST_REPLAY] = zebra_ptm_bfd_dst_replay, | |
2399 | #endif /* HAVE_BFDD */ | |
bf094f69 QY |
2400 | [ZEBRA_VRF_UNREGISTER] = zread_vrf_unregister, |
2401 | [ZEBRA_VRF_LABEL] = zread_vrf_label, | |
2402 | [ZEBRA_BFD_CLIENT_REGISTER] = zebra_ptm_bfd_client_register, | |
2403 | #if defined(HAVE_RTADV) | |
2404 | [ZEBRA_INTERFACE_ENABLE_RADV] = zebra_interface_radv_enable, | |
2405 | [ZEBRA_INTERFACE_DISABLE_RADV] = zebra_interface_radv_disable, | |
2406 | #else | |
2407 | [ZEBRA_INTERFACE_ENABLE_RADV] = NULL, | |
2408 | [ZEBRA_INTERFACE_DISABLE_RADV] = NULL, | |
2409 | #endif | |
2410 | [ZEBRA_MPLS_LABELS_ADD] = zread_mpls_labels, | |
2411 | [ZEBRA_MPLS_LABELS_DELETE] = zread_mpls_labels, | |
2412 | [ZEBRA_IPMR_ROUTE_STATS] = zebra_ipmr_route_stats, | |
2413 | [ZEBRA_LABEL_MANAGER_CONNECT] = zread_label_manager_request, | |
f533be73 | 2414 | [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC] = zread_label_manager_request, |
bf094f69 QY |
2415 | [ZEBRA_GET_LABEL_CHUNK] = zread_label_manager_request, |
2416 | [ZEBRA_RELEASE_LABEL_CHUNK] = zread_label_manager_request, | |
2417 | [ZEBRA_FEC_REGISTER] = zread_fec_register, | |
2418 | [ZEBRA_FEC_UNREGISTER] = zread_fec_unregister, | |
2419 | [ZEBRA_ADVERTISE_DEFAULT_GW] = zebra_vxlan_advertise_gw_macip, | |
2420 | [ZEBRA_ADVERTISE_SUBNET] = zebra_vxlan_advertise_subnet, | |
2421 | [ZEBRA_ADVERTISE_ALL_VNI] = zebra_vxlan_advertise_all_vni, | |
2422 | [ZEBRA_REMOTE_VTEP_ADD] = zebra_vxlan_remote_vtep_add, | |
2423 | [ZEBRA_REMOTE_VTEP_DEL] = zebra_vxlan_remote_vtep_del, | |
2424 | [ZEBRA_REMOTE_MACIP_ADD] = zebra_vxlan_remote_macip_add, | |
2425 | [ZEBRA_REMOTE_MACIP_DEL] = zebra_vxlan_remote_macip_del, | |
2426 | [ZEBRA_INTERFACE_SET_MASTER] = zread_interface_set_master, | |
2427 | [ZEBRA_PW_ADD] = zread_pseudowire, | |
2428 | [ZEBRA_PW_DELETE] = zread_pseudowire, | |
2429 | [ZEBRA_PW_SET] = zread_pseudowire, | |
2430 | [ZEBRA_PW_UNSET] = zread_pseudowire, | |
2431 | [ZEBRA_RULE_ADD] = zread_rule, | |
2432 | [ZEBRA_RULE_DELETE] = zread_rule, | |
2433 | [ZEBRA_TABLE_MANAGER_CONNECT] = zread_table_manager_request, | |
2434 | [ZEBRA_GET_TABLE_CHUNK] = zread_table_manager_request, | |
2435 | [ZEBRA_RELEASE_TABLE_CHUNK] = zread_table_manager_request, | |
2436 | [ZEBRA_IPSET_CREATE] = zread_ipset, | |
2437 | [ZEBRA_IPSET_DESTROY] = zread_ipset, | |
2438 | [ZEBRA_IPSET_ENTRY_ADD] = zread_ipset_entry, | |
2439 | [ZEBRA_IPSET_ENTRY_DELETE] = zread_ipset_entry, | |
2440 | [ZEBRA_IPTABLE_ADD] = zread_iptable, | |
2441 | [ZEBRA_IPTABLE_DELETE] = zread_iptable, | |
2442 | }; | |
2443 | ||
727c9b99 QY |
2444 | #if defined(HANDLE_ZAPI_FUZZING) |
2445 | extern struct zebra_privs_t zserv_privs; | |
2446 | ||
2447 | static void zserv_write_incoming(struct stream *orig, uint16_t command) | |
2448 | { | |
2449 | char fname[MAXPATHLEN]; | |
2450 | struct stream *copy; | |
2451 | int fd = -1; | |
2452 | ||
2453 | copy = stream_dup(orig); | |
2454 | stream_set_getp(copy, 0); | |
2455 | ||
727c9b99 | 2456 | snprintf(fname, MAXPATHLEN, "%s/%u", DAEMON_VTY_DIR, command); |
6bb30c2c DL |
2457 | |
2458 | frr_elevate_privs(&zserv_privs) { | |
2459 | fd = open(fname, O_CREAT | O_WRONLY | O_EXCL, 0644); | |
2460 | } | |
727c9b99 QY |
2461 | stream_flush(copy, fd); |
2462 | close(fd); | |
727c9b99 QY |
2463 | stream_free(copy); |
2464 | } | |
2465 | #endif | |
2466 | ||
904e0d88 | 2467 | void zserv_handle_commands(struct zserv *client, struct stream *msg) |
bf094f69 | 2468 | { |
904e0d88 QY |
2469 | struct zmsghdr hdr; |
2470 | struct zebra_vrf *zvrf; | |
2471 | ||
2472 | zapi_parse_header(msg, &hdr); | |
bf094f69 | 2473 | |
727c9b99 QY |
2474 | #if defined(HANDLE_ZAPI_FUZZING) |
2475 | zserv_write_incoming(msg, hdr.command); | |
2476 | #endif | |
2477 | ||
904e0d88 QY |
2478 | hdr.length -= ZEBRA_HEADER_SIZE; |
2479 | ||
2480 | /* lookup vrf */ | |
2481 | zvrf = zebra_vrf_lookup_by_id(hdr.vrf_id); | |
2482 | if (!zvrf) { | |
2483 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
9df414fe QY |
2484 | zlog_debug("ZAPI message specifies unknown VRF: %d", |
2485 | hdr.vrf_id); | |
904e0d88 QY |
2486 | return; |
2487 | } | |
2488 | ||
aa360de7 | 2489 | if (hdr.command >= array_size(zserv_handlers) |
904e0d88 QY |
2490 | || zserv_handlers[hdr.command] == NULL) |
2491 | zlog_info("Zebra received unknown command %d", hdr.command); | |
2492 | else | |
2493 | zserv_handlers[hdr.command](client, &hdr, msg, zvrf); | |
bf094f69 | 2494 | } |