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Commit | Line | Data |
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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" | |
bf094f69 QY |
27 | #include "lib/stream.h" |
28 | #include "lib/memory.h" | |
29 | #include "lib/table.h" | |
30 | #include "lib/network.h" | |
bf094f69 QY |
31 | #include "lib/log.h" |
32 | #include "lib/zclient.h" | |
33 | #include "lib/privs.h" | |
bf094f69 QY |
34 | #include "lib/nexthop.h" |
35 | #include "lib/vrf.h" | |
36 | #include "lib/libfrr.h" | |
5e7939a5 | 37 | #include "lib/lib_errors.h" |
bf094f69 | 38 | |
161e9ab7 | 39 | #include "zebra/zebra_router.h" |
bf094f69 QY |
40 | #include "zebra/rib.h" |
41 | #include "zebra/zebra_memory.h" | |
42 | #include "zebra/zebra_ns.h" | |
43 | #include "zebra/zebra_vrf.h" | |
44 | #include "zebra/router-id.h" | |
45 | #include "zebra/redistribute.h" | |
46 | #include "zebra/debug.h" | |
47 | #include "zebra/zebra_rnh.h" | |
bf094f69 QY |
48 | #include "zebra/interface.h" |
49 | #include "zebra/zebra_ptm.h" | |
50 | #include "zebra/rtadv.h" | |
51 | #include "zebra/zebra_mpls.h" | |
52 | #include "zebra/zebra_mroute.h" | |
bf094f69 | 53 | #include "zebra/zebra_vxlan.h" |
ce5160c0 | 54 | #include "zebra/zebra_evpn_mh.h" |
bf094f69 QY |
55 | #include "zebra/rt.h" |
56 | #include "zebra/zebra_pbr.h" | |
57 | #include "zebra/table_manager.h" | |
58 | #include "zebra/zapi_msg.h" | |
364fed6b | 59 | #include "zebra/zebra_errors.h" |
02c0866d | 60 | #include "zebra/zebra_mlag.h" |
54bea4e5 | 61 | #include "zebra/connected.h" |
79b3664a | 62 | #include "zebra/zebra_opaque.h" |
31f937fb | 63 | #include "zebra/zebra_srte.h" |
bf094f69 QY |
64 | |
65 | /* Encoding helpers -------------------------------------------------------- */ | |
66 | ||
67 | static void zserv_encode_interface(struct stream *s, struct interface *ifp) | |
68 | { | |
69 | /* Interface information. */ | |
53e60e5c | 70 | struct zebra_if *zif = ifp->info; |
19c38250 | 71 | |
bf094f69 QY |
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); | |
53e60e5c | 83 | stream_putl(s, zif->link_ifindex); |
bf094f69 QY |
84 | stream_putl(s, ifp->ll_type); |
85 | stream_putl(s, ifp->hw_addr_len); | |
86 | if (ifp->hw_addr_len) | |
87 | stream_put(s, ifp->hw_addr, ifp->hw_addr_len); | |
88 | ||
89 | /* Then, Traffic Engineering parameters if any */ | |
90 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { | |
91 | stream_putc(s, 1); | |
92 | zebra_interface_link_params_write(s, ifp); | |
93 | } else | |
94 | stream_putc(s, 0); | |
95 | ||
96 | /* Write packet size. */ | |
97 | stream_putw_at(s, 0, stream_get_endp(s)); | |
98 | } | |
99 | ||
100 | static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) | |
101 | { | |
102 | struct vrf_data data; | |
103 | const char *netns_name = zvrf_ns_name(zvrf); | |
104 | ||
105 | data.l.table_id = zvrf->table_id; | |
106 | ||
107 | if (netns_name) | |
108 | strlcpy(data.l.netns_name, basename((char *)netns_name), | |
109 | NS_NAMSIZ); | |
110 | else | |
111 | memset(data.l.netns_name, 0, NS_NAMSIZ); | |
112 | /* Pass the tableid and the netns NAME */ | |
113 | stream_put(s, &data, sizeof(struct vrf_data)); | |
114 | /* Interface information. */ | |
115 | stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); | |
116 | /* Write packet size. */ | |
117 | stream_putw_at(s, 0, stream_get_endp(s)); | |
118 | } | |
119 | ||
120 | static int zserv_encode_nexthop(struct stream *s, struct nexthop *nexthop) | |
121 | { | |
a756969d | 122 | stream_putl(s, nexthop->vrf_id); |
bf094f69 QY |
123 | stream_putc(s, nexthop->type); |
124 | switch (nexthop->type) { | |
125 | case NEXTHOP_TYPE_IPV4: | |
126 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
127 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
128 | stream_putl(s, nexthop->ifindex); | |
129 | break; | |
130 | case NEXTHOP_TYPE_IPV6: | |
131 | stream_put(s, &nexthop->gate.ipv6, 16); | |
132 | break; | |
133 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
134 | stream_put(s, &nexthop->gate.ipv6, 16); | |
135 | stream_putl(s, nexthop->ifindex); | |
136 | break; | |
137 | case NEXTHOP_TYPE_IFINDEX: | |
138 | stream_putl(s, nexthop->ifindex); | |
139 | break; | |
140 | default: | |
141 | /* do nothing */ | |
142 | break; | |
143 | } | |
144 | return 1; | |
145 | } | |
146 | ||
9ab0b2a3 SW |
147 | /* |
148 | * Zebra error addition adds error type. | |
149 | * | |
150 | * | |
151 | * 0 1 | |
152 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 | |
153 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
154 | * | enum zebra_error_types | | |
155 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
156 | * | |
157 | */ | |
158 | static void zserv_encode_error(struct stream *s, enum zebra_error_types error) | |
159 | { | |
160 | stream_put(s, &error, sizeof(error)); | |
161 | ||
162 | /* Write packet size. */ | |
163 | stream_putw_at(s, 0, stream_get_endp(s)); | |
164 | } | |
165 | ||
bf094f69 QY |
166 | /* Send handlers ----------------------------------------------------------- */ |
167 | ||
168 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ | |
169 | /* | |
170 | * This function is called in the following situations: | |
171 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
172 | * from the client. | |
173 | * - at startup, when zebra figures out the available interfaces | |
174 | * - when an interface is added (where support for | |
175 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
176 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
177 | * received) | |
178 | */ | |
179 | int zsend_interface_add(struct zserv *client, struct interface *ifp) | |
180 | { | |
181 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
182 | ||
a36898e7 | 183 | zclient_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); |
bf094f69 QY |
184 | zserv_encode_interface(s, ifp); |
185 | ||
186 | client->ifadd_cnt++; | |
21ccc0cf | 187 | return zserv_send_message(client, s); |
bf094f69 QY |
188 | } |
189 | ||
190 | /* Interface deletion from zebra daemon. */ | |
191 | int zsend_interface_delete(struct zserv *client, struct interface *ifp) | |
192 | { | |
193 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
194 | ||
a36898e7 | 195 | zclient_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); |
bf094f69 QY |
196 | zserv_encode_interface(s, ifp); |
197 | ||
198 | client->ifdel_cnt++; | |
21ccc0cf | 199 | return zserv_send_message(client, s); |
bf094f69 QY |
200 | } |
201 | ||
202 | int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) | |
203 | { | |
204 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
205 | ||
206 | zclient_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); | |
207 | zserv_encode_vrf(s, zvrf); | |
208 | ||
209 | client->vrfadd_cnt++; | |
21ccc0cf | 210 | return zserv_send_message(client, s); |
bf094f69 QY |
211 | } |
212 | ||
213 | /* VRF deletion from zebra daemon. */ | |
214 | int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) | |
215 | ||
216 | { | |
217 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
218 | ||
219 | zclient_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); | |
220 | zserv_encode_vrf(s, zvrf); | |
221 | ||
222 | client->vrfdel_cnt++; | |
21ccc0cf | 223 | return zserv_send_message(client, s); |
bf094f69 QY |
224 | } |
225 | ||
226 | int zsend_interface_link_params(struct zserv *client, struct interface *ifp) | |
227 | { | |
228 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
229 | ||
bf094f69 QY |
230 | if (!ifp->link_params) { |
231 | stream_free(s); | |
232 | return 0; | |
233 | } | |
234 | ||
a36898e7 | 235 | zclient_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); |
bf094f69 QY |
236 | |
237 | /* Add Interface Index */ | |
238 | stream_putl(s, ifp->ifindex); | |
239 | ||
240 | /* Then TE Link Parameters */ | |
241 | if (zebra_interface_link_params_write(s, ifp) == 0) { | |
242 | stream_free(s); | |
243 | return 0; | |
244 | } | |
245 | ||
246 | /* Write packet size. */ | |
247 | stream_putw_at(s, 0, stream_get_endp(s)); | |
248 | ||
21ccc0cf | 249 | return zserv_send_message(client, s); |
bf094f69 QY |
250 | } |
251 | ||
252 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or | |
253 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
254 | * | |
255 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
256 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
257 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
258 | * sent from zebra to the client | |
259 | * - redistribute new address info to all clients in the following situations | |
260 | * - at startup, when zebra figures out the available interfaces | |
261 | * - when an interface is added (where support for | |
262 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
263 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
264 | * received) | |
b1bd1015 | 265 | * - for the vty commands "ip address A.B.C.D/M [<label LINE>]" |
bf094f69 QY |
266 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" |
267 | * - when an RTM_NEWADDR message is received from the kernel, | |
268 | * | |
269 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
270 | * | |
271 | * zsend_interface_address(DELETE) | |
272 | * ^ | |
273 | * | | |
274 | * zebra_interface_address_delete_update | |
275 | * ^ ^ ^ | |
276 | * | | if_delete_update | |
277 | * | | | |
278 | * ip_address_uninstall connected_delete_ipv4 | |
279 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
280 | * ^ ^ | |
281 | * | | | |
282 | * | RTM_NEWADDR on routing/netlink socket | |
283 | * | | |
284 | * vty commands: | |
285 | * "no ip address A.B.C.D/M [label LINE]" | |
b1bd1015 | 286 | * "no ip address A.B.C.D/M" |
bf094f69 QY |
287 | * ["no ipv6 address X:X::X:X/M"] |
288 | * | |
289 | */ | |
290 | int zsend_interface_address(int cmd, struct zserv *client, | |
291 | struct interface *ifp, struct connected *ifc) | |
292 | { | |
293 | int blen; | |
294 | struct prefix *p; | |
295 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
296 | ||
a36898e7 | 297 | zclient_create_header(s, cmd, ifp->vrf_id); |
bf094f69 QY |
298 | stream_putl(s, ifp->ifindex); |
299 | ||
300 | /* Interface address flag. */ | |
301 | stream_putc(s, ifc->flags); | |
302 | ||
303 | /* Prefix information. */ | |
304 | p = ifc->address; | |
305 | stream_putc(s, p->family); | |
306 | blen = prefix_blen(p); | |
307 | stream_put(s, &p->u.prefix, blen); | |
308 | ||
309 | /* | |
310 | * XXX gnu version does not send prefixlen for | |
311 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
312 | * but zebra_interface_address_delete_read() in the gnu version | |
313 | * expects to find it | |
314 | */ | |
315 | stream_putc(s, p->prefixlen); | |
316 | ||
317 | /* Destination. */ | |
318 | p = ifc->destination; | |
319 | if (p) | |
320 | stream_put(s, &p->u.prefix, blen); | |
321 | else | |
322 | stream_put(s, NULL, blen); | |
323 | ||
324 | /* Write packet size. */ | |
325 | stream_putw_at(s, 0, stream_get_endp(s)); | |
326 | ||
327 | client->connected_rt_add_cnt++; | |
21ccc0cf | 328 | return zserv_send_message(client, s); |
bf094f69 QY |
329 | } |
330 | ||
331 | static int zsend_interface_nbr_address(int cmd, struct zserv *client, | |
332 | struct interface *ifp, | |
333 | struct nbr_connected *ifc) | |
334 | { | |
335 | int blen; | |
336 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
337 | struct prefix *p; | |
338 | ||
a36898e7 | 339 | zclient_create_header(s, cmd, ifp->vrf_id); |
bf094f69 QY |
340 | stream_putl(s, ifp->ifindex); |
341 | ||
342 | /* Prefix information. */ | |
343 | p = ifc->address; | |
344 | stream_putc(s, p->family); | |
345 | blen = prefix_blen(p); | |
346 | stream_put(s, &p->u.prefix, blen); | |
347 | ||
348 | /* | |
349 | * XXX gnu version does not send prefixlen for | |
350 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
351 | * but zebra_interface_address_delete_read() in the gnu version | |
352 | * expects to find it | |
353 | */ | |
354 | stream_putc(s, p->prefixlen); | |
355 | ||
356 | /* Write packet size. */ | |
357 | stream_putw_at(s, 0, stream_get_endp(s)); | |
358 | ||
21ccc0cf | 359 | return zserv_send_message(client, s); |
bf094f69 QY |
360 | } |
361 | ||
362 | /* Interface address addition. */ | |
363 | static void zebra_interface_nbr_address_add_update(struct interface *ifp, | |
364 | struct nbr_connected *ifc) | |
365 | { | |
366 | struct listnode *node, *nnode; | |
367 | struct zserv *client; | |
368 | struct prefix *p; | |
369 | ||
370 | if (IS_ZEBRA_DEBUG_EVENT) { | |
371 | char buf[INET6_ADDRSTRLEN]; | |
372 | ||
373 | p = ifc->address; | |
374 | zlog_debug( | |
375 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
376 | inet_ntop(p->family, &p->u.prefix, buf, | |
377 | INET6_ADDRSTRLEN), | |
378 | p->prefixlen, ifc->ifp->name); | |
379 | } | |
380 | ||
17da84a4 KS |
381 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
382 | /* Do not send unsolicited messages to synchronous clients. */ | |
383 | if (client->synchronous) | |
384 | continue; | |
385 | ||
bf094f69 QY |
386 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, |
387 | client, ifp, ifc); | |
17da84a4 | 388 | } |
bf094f69 QY |
389 | } |
390 | ||
391 | /* Interface address deletion. */ | |
392 | static void zebra_interface_nbr_address_delete_update(struct interface *ifp, | |
393 | struct nbr_connected *ifc) | |
394 | { | |
395 | struct listnode *node, *nnode; | |
396 | struct zserv *client; | |
397 | struct prefix *p; | |
398 | ||
399 | if (IS_ZEBRA_DEBUG_EVENT) { | |
400 | char buf[INET6_ADDRSTRLEN]; | |
401 | ||
402 | p = ifc->address; | |
403 | zlog_debug( | |
404 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
405 | inet_ntop(p->family, &p->u.prefix, buf, | |
406 | INET6_ADDRSTRLEN), | |
407 | p->prefixlen, ifc->ifp->name); | |
408 | } | |
409 | ||
17da84a4 KS |
410 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
411 | /* Do not send unsolicited messages to synchronous clients. */ | |
412 | if (client->synchronous) | |
413 | continue; | |
414 | ||
bf094f69 QY |
415 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, |
416 | client, ifp, ifc); | |
17da84a4 | 417 | } |
bf094f69 QY |
418 | } |
419 | ||
420 | /* Send addresses on interface to client */ | |
421 | int zsend_interface_addresses(struct zserv *client, struct interface *ifp) | |
422 | { | |
423 | struct listnode *cnode, *cnnode; | |
424 | struct connected *c; | |
425 | struct nbr_connected *nc; | |
426 | ||
427 | /* Send interface addresses. */ | |
428 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
429 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
430 | continue; | |
431 | ||
432 | if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
433 | ifp, c) | |
434 | < 0) | |
435 | return -1; | |
436 | } | |
437 | ||
438 | /* Send interface neighbors. */ | |
439 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { | |
440 | if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
441 | client, ifp, nc) | |
442 | < 0) | |
443 | return -1; | |
444 | } | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
449 | /* Notify client about interface moving from one VRF to another. | |
450 | * Whether client is interested in old and new VRF is checked by caller. | |
451 | */ | |
452 | int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, | |
453 | vrf_id_t vrf_id) | |
454 | { | |
455 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
456 | ||
a36898e7 | 457 | zclient_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); |
bf094f69 | 458 | |
91d227b7 RW |
459 | /* Fill in the name of the interface and its new VRF (id) */ |
460 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
bf094f69 QY |
461 | stream_putl(s, vrf_id); |
462 | ||
463 | /* Write packet size. */ | |
464 | stream_putw_at(s, 0, stream_get_endp(s)); | |
465 | ||
466 | client->if_vrfchg_cnt++; | |
21ccc0cf | 467 | return zserv_send_message(client, s); |
bf094f69 QY |
468 | } |
469 | ||
470 | /* Add new nbr connected IPv6 address */ | |
471 | void nbr_connected_add_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 | ||
8b1766b1 QY |
480 | ifc = listnode_head(ifp->nbr_connected); |
481 | if (!ifc) { | |
bf094f69 QY |
482 | /* new addition */ |
483 | ifc = nbr_connected_new(); | |
484 | ifc->address = prefix_new(); | |
485 | ifc->ifp = ifp; | |
486 | listnode_add(ifp->nbr_connected, ifc); | |
487 | } | |
488 | ||
489 | prefix_copy(ifc->address, &p); | |
490 | ||
491 | zebra_interface_nbr_address_add_update(ifp, ifc); | |
492 | ||
493 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); | |
494 | } | |
495 | ||
496 | void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) | |
497 | { | |
498 | struct nbr_connected *ifc; | |
499 | struct prefix p; | |
500 | ||
501 | p.family = AF_INET6; | |
a85297a7 | 502 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
503 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
504 | ||
505 | ifc = nbr_connected_check(ifp, &p); | |
506 | if (!ifc) | |
507 | return; | |
508 | ||
509 | listnode_delete(ifp->nbr_connected, ifc); | |
510 | ||
511 | zebra_interface_nbr_address_delete_update(ifp, ifc); | |
512 | ||
513 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); | |
514 | ||
515 | nbr_connected_free(ifc); | |
516 | } | |
517 | ||
518 | /* | |
519 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
520 | * ZEBRA_INTERFACE_DOWN. | |
521 | * | |
522 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
523 | * the clients in one of 2 situations: | |
524 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
525 | * - a vty command modifying the bandwidth of an interface is received. | |
526 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
527 | */ | |
528 | int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) | |
529 | { | |
530 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
531 | ||
a36898e7 | 532 | zclient_create_header(s, cmd, ifp->vrf_id); |
bf094f69 QY |
533 | zserv_encode_interface(s, ifp); |
534 | ||
535 | if (cmd == ZEBRA_INTERFACE_UP) | |
536 | client->ifup_cnt++; | |
537 | else | |
538 | client->ifdown_cnt++; | |
539 | ||
21ccc0cf | 540 | return zserv_send_message(client, s); |
bf094f69 QY |
541 | } |
542 | ||
86391e56 MS |
543 | int zsend_redistribute_route(int cmd, struct zserv *client, |
544 | const struct prefix *p, | |
40f321c0 MS |
545 | const struct prefix *src_p, |
546 | const struct route_entry *re) | |
bf094f69 QY |
547 | { |
548 | struct zapi_route api; | |
549 | struct zapi_nexthop *api_nh; | |
550 | struct nexthop *nexthop; | |
9a0d4dd3 | 551 | uint8_t count = 0; |
34fa0870 | 552 | afi_t afi; |
f3f45626 DS |
553 | size_t stream_size = |
554 | MAX(ZEBRA_MAX_PACKET_SIZ, sizeof(struct zapi_route)); | |
bf094f69 QY |
555 | |
556 | memset(&api, 0, sizeof(api)); | |
557 | api.vrf_id = re->vrf_id; | |
558 | api.type = re->type; | |
e4081c0e | 559 | api.safi = SAFI_UNICAST; |
bf094f69 QY |
560 | api.instance = re->instance; |
561 | api.flags = re->flags; | |
562 | ||
34fa0870 DS |
563 | afi = family2afi(p->family); |
564 | switch (afi) { | |
565 | case AFI_IP: | |
566 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
567 | client->redist_v4_add_cnt++; | |
568 | else | |
569 | client->redist_v4_del_cnt++; | |
570 | break; | |
571 | case AFI_IP6: | |
572 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
573 | client->redist_v6_add_cnt++; | |
574 | else | |
575 | client->redist_v6_del_cnt++; | |
576 | break; | |
577 | default: | |
578 | break; | |
579 | } | |
580 | ||
bf094f69 QY |
581 | /* Prefix. */ |
582 | api.prefix = *p; | |
583 | if (src_p) { | |
584 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
585 | memcpy(&api.src_prefix, src_p, sizeof(api.src_prefix)); | |
586 | } | |
587 | ||
c415d895 | 588 | for (nexthop = re->nhe->nhg.nexthop; |
0eb97b86 | 589 | nexthop; nexthop = nexthop->next) { |
bf094f69 QY |
590 | if (!CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) |
591 | continue; | |
592 | ||
593 | api_nh = &api.nexthops[count]; | |
594 | api_nh->vrf_id = nexthop->vrf_id; | |
595 | api_nh->type = nexthop->type; | |
bd054c1a | 596 | api_nh->weight = nexthop->weight; |
bf094f69 QY |
597 | switch (nexthop->type) { |
598 | case NEXTHOP_TYPE_BLACKHOLE: | |
599 | api_nh->bh_type = nexthop->bh_type; | |
600 | break; | |
601 | case NEXTHOP_TYPE_IPV4: | |
602 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
603 | break; | |
604 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
605 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
606 | api_nh->ifindex = nexthop->ifindex; | |
607 | break; | |
608 | case NEXTHOP_TYPE_IFINDEX: | |
609 | api_nh->ifindex = nexthop->ifindex; | |
610 | break; | |
611 | case NEXTHOP_TYPE_IPV6: | |
612 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
613 | break; | |
614 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
615 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
616 | api_nh->ifindex = nexthop->ifindex; | |
617 | } | |
618 | count++; | |
619 | } | |
620 | ||
9a0d4dd3 DS |
621 | /* Nexthops. */ |
622 | if (count) { | |
623 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
624 | api.nexthop_num = count; | |
625 | } | |
626 | ||
bf094f69 QY |
627 | /* Attributes. */ |
628 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
629 | api.distance = re->distance; | |
630 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); | |
631 | api.metric = re->metric; | |
632 | if (re->tag) { | |
633 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
634 | api.tag = re->tag; | |
635 | } | |
636 | SET_FLAG(api.message, ZAPI_MESSAGE_MTU); | |
637 | api.mtu = re->mtu; | |
638 | ||
f3f45626 | 639 | struct stream *s = stream_new(stream_size); |
bf094f69 QY |
640 | |
641 | /* Encode route and send. */ | |
642 | if (zapi_route_encode(cmd, s, &api) < 0) { | |
643 | stream_free(s); | |
644 | return -1; | |
645 | } | |
646 | ||
2dbe669b DA |
647 | if (IS_ZEBRA_DEBUG_SEND) |
648 | zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %pFX", | |
bf094f69 QY |
649 | __func__, zserv_command_string(cmd), |
650 | zebra_route_string(client->proto), | |
651 | zebra_route_string(api.type), api.vrf_id, | |
2dbe669b | 652 | &api.prefix); |
21ccc0cf | 653 | return zserv_send_message(client, s); |
bf094f69 QY |
654 | } |
655 | ||
656 | /* | |
657 | * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if | |
658 | * nexthop is not found on mrib. Returns both route metric and protocol | |
659 | * distance. | |
660 | */ | |
661 | static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, | |
662 | struct in_addr addr, | |
663 | struct route_entry *re, | |
664 | struct zebra_vrf *zvrf) | |
665 | { | |
666 | struct stream *s; | |
667 | unsigned long nump; | |
668 | uint8_t num; | |
669 | struct nexthop *nexthop; | |
670 | ||
671 | /* Get output stream. */ | |
672 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
673 | stream_reset(s); | |
674 | ||
675 | /* Fill in result. */ | |
676 | zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); | |
677 | stream_put_in_addr(s, &addr); | |
678 | ||
679 | if (re) { | |
680 | stream_putc(s, re->distance); | |
681 | stream_putl(s, re->metric); | |
682 | num = 0; | |
8b1766b1 QY |
683 | /* remember position for nexthop_num */ |
684 | nump = stream_get_endp(s); | |
685 | /* reserve room for nexthop_num */ | |
686 | stream_putc(s, 0); | |
687 | /* | |
688 | * Only non-recursive routes are elegible to resolve the | |
689 | * nexthop we are looking up. Therefore, we will just iterate | |
690 | * over the top chain of nexthops. | |
691 | */ | |
c415d895 | 692 | for (nexthop = re->nhe->nhg.nexthop; nexthop; |
6b468511 | 693 | nexthop = nexthop->next) |
bf094f69 QY |
694 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) |
695 | num += zserv_encode_nexthop(s, nexthop); | |
696 | ||
8b1766b1 QY |
697 | /* store nexthop_num */ |
698 | stream_putc_at(s, nump, num); | |
bf094f69 QY |
699 | } else { |
700 | stream_putc(s, 0); /* distance */ | |
701 | stream_putl(s, 0); /* metric */ | |
702 | stream_putc(s, 0); /* nexthop_num */ | |
703 | } | |
704 | ||
705 | stream_putw_at(s, 0, stream_get_endp(s)); | |
706 | ||
21ccc0cf | 707 | return zserv_send_message(client, s); |
bf094f69 QY |
708 | } |
709 | ||
2c7819b9 | 710 | static int nhg_notify(uint16_t type, uint16_t instance, uint32_t id, |
2f35a820 DS |
711 | enum zapi_nhg_notify_owner note) |
712 | { | |
713 | struct zserv *client; | |
714 | struct stream *s; | |
715 | ||
716 | client = zserv_find_client(type, instance); | |
717 | if (!client) { | |
718 | if (IS_ZEBRA_DEBUG_PACKET) { | |
719 | zlog_debug("Not Notifying Owner: %u(%u) about %u(%d)", | |
720 | type, instance, id, note); | |
721 | } | |
722 | return 0; | |
723 | } | |
724 | ||
725 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
726 | stream_reset(s); | |
727 | ||
728 | zclient_create_header(s, ZEBRA_NHG_NOTIFY_OWNER, VRF_DEFAULT); | |
729 | ||
2f35a820 | 730 | stream_put(s, ¬e, sizeof(note)); |
2c7819b9 | 731 | stream_putl(s, id); |
2f35a820 DS |
732 | |
733 | stream_putw_at(s, 0, stream_get_endp(s)); | |
734 | ||
735 | return zserv_send_message(client, s); | |
736 | } | |
737 | ||
86391e56 MS |
738 | /* |
739 | * Common utility send route notification, called from a path using a | |
740 | * route_entry and from a path using a dataplane context. | |
741 | */ | |
742 | static int route_notify_internal(const struct prefix *p, int type, | |
743 | uint16_t instance, vrf_id_t vrf_id, | |
744 | uint32_t table_id, | |
745 | enum zapi_route_notify_owner note) | |
bf094f69 QY |
746 | { |
747 | struct zserv *client; | |
748 | struct stream *s; | |
749 | uint8_t blen; | |
750 | ||
86391e56 | 751 | client = zserv_find_client(type, instance); |
bf094f69 | 752 | if (!client || !client->notify_owner) { |
2dbe669b | 753 | if (IS_ZEBRA_DEBUG_PACKET) |
bf094f69 | 754 | zlog_debug( |
2dbe669b DA |
755 | "Not Notifying Owner: %s about prefix %pFX(%u) %d vrf: %u", |
756 | zebra_route_string(type), p, table_id, note, | |
757 | vrf_id); | |
bf094f69 QY |
758 | return 0; |
759 | } | |
760 | ||
2dbe669b DA |
761 | if (IS_ZEBRA_DEBUG_PACKET) |
762 | zlog_debug( | |
763 | "Notifying Owner: %s about prefix %pFX(%u) %d vrf: %u", | |
764 | zebra_route_string(type), p, table_id, note, vrf_id); | |
bf094f69 QY |
765 | |
766 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
767 | stream_reset(s); | |
768 | ||
86391e56 | 769 | zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, vrf_id); |
bf094f69 QY |
770 | |
771 | stream_put(s, ¬e, sizeof(note)); | |
772 | ||
773 | stream_putc(s, p->family); | |
774 | ||
775 | blen = prefix_blen(p); | |
776 | stream_putc(s, p->prefixlen); | |
777 | stream_put(s, &p->u.prefix, blen); | |
778 | ||
86391e56 | 779 | stream_putl(s, table_id); |
bf094f69 QY |
780 | |
781 | stream_putw_at(s, 0, stream_get_endp(s)); | |
782 | ||
21ccc0cf | 783 | return zserv_send_message(client, s); |
bf094f69 QY |
784 | } |
785 | ||
86391e56 MS |
786 | int zsend_route_notify_owner(struct route_entry *re, const struct prefix *p, |
787 | enum zapi_route_notify_owner note) | |
788 | { | |
789 | return (route_notify_internal(p, re->type, re->instance, re->vrf_id, | |
790 | re->table, note)); | |
791 | } | |
792 | ||
7cdb1a84 MS |
793 | /* |
794 | * Route-owner notification using info from dataplane update context. | |
795 | */ | |
25779064 | 796 | int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx *ctx, |
7cdb1a84 MS |
797 | enum zapi_route_notify_owner note) |
798 | { | |
799 | return (route_notify_internal(dplane_ctx_get_dest(ctx), | |
800 | dplane_ctx_get_type(ctx), | |
801 | dplane_ctx_get_instance(ctx), | |
802 | dplane_ctx_get_vrf(ctx), | |
803 | dplane_ctx_get_table(ctx), | |
804 | note)); | |
86391e56 MS |
805 | } |
806 | ||
f62e5480 | 807 | void zsend_rule_notify_owner(const struct zebra_dplane_ctx *ctx, |
bf094f69 QY |
808 | enum zapi_rule_notify_owner note) |
809 | { | |
810 | struct listnode *node; | |
811 | struct zserv *client; | |
812 | struct stream *s; | |
813 | ||
814 | if (IS_ZEBRA_DEBUG_PACKET) | |
f62e5480 JU |
815 | zlog_debug("%s: Notifying %u", __func__, |
816 | dplane_ctx_rule_get_unique(ctx)); | |
bf094f69 | 817 | |
161e9ab7 | 818 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
f62e5480 | 819 | if (dplane_ctx_rule_get_sock(ctx) == client->sock) |
bf094f69 QY |
820 | break; |
821 | } | |
822 | ||
823 | if (!client) | |
824 | return; | |
825 | ||
826 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
827 | ||
828 | zclient_create_header(s, ZEBRA_RULE_NOTIFY_OWNER, VRF_DEFAULT); | |
829 | stream_put(s, ¬e, sizeof(note)); | |
f62e5480 JU |
830 | stream_putl(s, dplane_ctx_rule_get_seq(ctx)); |
831 | stream_putl(s, dplane_ctx_rule_get_priority(ctx)); | |
832 | stream_putl(s, dplane_ctx_rule_get_unique(ctx)); | |
58a1d249 | 833 | stream_put(s, dplane_ctx_rule_get_ifname(ctx), INTERFACE_NAMSIZ); |
bf094f69 QY |
834 | |
835 | stream_putw_at(s, 0, stream_get_endp(s)); | |
836 | ||
21ccc0cf | 837 | zserv_send_message(client, s); |
bf094f69 QY |
838 | } |
839 | ||
840 | void zsend_ipset_notify_owner(struct zebra_pbr_ipset *ipset, | |
841 | enum zapi_ipset_notify_owner note) | |
842 | { | |
843 | struct listnode *node; | |
844 | struct zserv *client; | |
845 | struct stream *s; | |
846 | ||
847 | if (IS_ZEBRA_DEBUG_PACKET) | |
5e81f5dd | 848 | zlog_debug("%s: Notifying %u", __func__, ipset->unique); |
bf094f69 | 849 | |
161e9ab7 | 850 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
851 | if (ipset->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_IPSET_NOTIFY_OWNER, VRF_DEFAULT); | |
861 | stream_put(s, ¬e, sizeof(note)); | |
862 | stream_putl(s, ipset->unique); | |
863 | stream_put(s, ipset->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
864 | stream_putw_at(s, 0, stream_get_endp(s)); | |
865 | ||
21ccc0cf | 866 | zserv_send_message(client, s); |
bf094f69 QY |
867 | } |
868 | ||
869 | void zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry *ipset, | |
870 | enum zapi_ipset_entry_notify_owner note) | |
871 | { | |
872 | struct listnode *node; | |
873 | struct zserv *client; | |
874 | struct stream *s; | |
875 | ||
876 | if (IS_ZEBRA_DEBUG_PACKET) | |
5e81f5dd | 877 | zlog_debug("%s: Notifying %u", __func__, ipset->unique); |
bf094f69 | 878 | |
161e9ab7 | 879 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
880 | if (ipset->sock == client->sock) |
881 | break; | |
882 | } | |
883 | ||
884 | if (!client) | |
885 | return; | |
886 | ||
887 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
888 | ||
889 | zclient_create_header(s, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER, VRF_DEFAULT); | |
890 | stream_put(s, ¬e, sizeof(note)); | |
891 | stream_putl(s, ipset->unique); | |
892 | stream_put(s, ipset->backpointer->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
893 | stream_putw_at(s, 0, stream_get_endp(s)); | |
894 | ||
21ccc0cf | 895 | zserv_send_message(client, s); |
bf094f69 QY |
896 | } |
897 | ||
898 | void zsend_iptable_notify_owner(struct zebra_pbr_iptable *iptable, | |
899 | enum zapi_iptable_notify_owner note) | |
900 | { | |
901 | struct listnode *node; | |
902 | struct zserv *client; | |
903 | struct stream *s; | |
904 | ||
905 | if (IS_ZEBRA_DEBUG_PACKET) | |
5e81f5dd | 906 | zlog_debug("%s: Notifying %u", __func__, iptable->unique); |
bf094f69 | 907 | |
161e9ab7 | 908 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
909 | if (iptable->sock == client->sock) |
910 | break; | |
911 | } | |
912 | ||
913 | if (!client) | |
914 | return; | |
915 | ||
916 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
917 | ||
918 | zclient_create_header(s, ZEBRA_IPTABLE_NOTIFY_OWNER, VRF_DEFAULT); | |
919 | stream_put(s, ¬e, sizeof(note)); | |
920 | stream_putl(s, iptable->unique); | |
921 | stream_putw_at(s, 0, stream_get_endp(s)); | |
922 | ||
21ccc0cf | 923 | zserv_send_message(client, s); |
bf094f69 QY |
924 | } |
925 | ||
98a3fb0a SM |
926 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_UPDATE to client. */ |
927 | int zsend_router_id_update(struct zserv *client, afi_t afi, struct prefix *p, | |
bf094f69 QY |
928 | vrf_id_t vrf_id) |
929 | { | |
930 | int blen; | |
98a3fb0a | 931 | struct stream *s; |
bf094f69 QY |
932 | |
933 | /* Check this client need interface information. */ | |
98a3fb0a | 934 | if (!vrf_bitmap_check(client->ridinfo[afi], vrf_id)) |
bf094f69 QY |
935 | return 0; |
936 | ||
98a3fb0a | 937 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
bf094f69 QY |
938 | |
939 | /* Message type. */ | |
940 | zclient_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); | |
941 | ||
942 | /* Prefix information. */ | |
943 | stream_putc(s, p->family); | |
944 | blen = prefix_blen(p); | |
945 | stream_put(s, &p->u.prefix, blen); | |
946 | stream_putc(s, p->prefixlen); | |
947 | ||
948 | /* Write packet size. */ | |
949 | stream_putw_at(s, 0, stream_get_endp(s)); | |
950 | ||
21ccc0cf | 951 | return zserv_send_message(client, s); |
bf094f69 QY |
952 | } |
953 | ||
954 | /* | |
955 | * Function used by Zebra to send a PW status update to LDP daemon | |
956 | */ | |
957 | int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) | |
958 | { | |
959 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
960 | ||
961 | zclient_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); | |
962 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
963 | stream_putl(s, pw->ifindex); | |
964 | stream_putl(s, pw->status); | |
965 | ||
966 | /* Put length at the first point of the stream. */ | |
967 | stream_putw_at(s, 0, stream_get_endp(s)); | |
968 | ||
21ccc0cf | 969 | return zserv_send_message(client, s); |
bf094f69 QY |
970 | } |
971 | ||
972 | /* Send response to a get label chunk request to client */ | |
e11d7c96 | 973 | int zsend_assign_label_chunk_response(struct zserv *client, vrf_id_t vrf_id, |
e11d7c96 | 974 | struct label_manager_chunk *lmc) |
bf094f69 QY |
975 | { |
976 | int ret; | |
977 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
978 | ||
979 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); | |
f004f7c3 | 980 | /* proto */ |
4cebdb9b | 981 | stream_putc(s, client->proto); |
f004f7c3 | 982 | /* instance */ |
4cebdb9b | 983 | stream_putw(s, client->instance); |
bf094f69 QY |
984 | |
985 | if (lmc) { | |
986 | /* keep */ | |
987 | stream_putc(s, lmc->keep); | |
988 | /* start and end labels */ | |
989 | stream_putl(s, lmc->start); | |
990 | stream_putl(s, lmc->end); | |
991 | } | |
992 | ||
993 | /* Write packet size. */ | |
994 | stream_putw_at(s, 0, stream_get_endp(s)); | |
995 | ||
996 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
997 | stream_free(s); | |
998 | return ret; | |
999 | } | |
1000 | ||
1001 | /* Send response to a label manager connect request to client */ | |
e11d7c96 EDP |
1002 | int zsend_label_manager_connect_response(struct zserv *client, vrf_id_t vrf_id, |
1003 | unsigned short result) | |
bf094f69 QY |
1004 | { |
1005 | int ret; | |
1006 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1007 | ||
1008 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); | |
1009 | ||
5dffb0e9 FR |
1010 | /* proto */ |
1011 | stream_putc(s, client->proto); | |
1012 | ||
1013 | /* instance */ | |
1014 | stream_putw(s, client->instance); | |
1015 | ||
bf094f69 QY |
1016 | /* result */ |
1017 | stream_putc(s, result); | |
1018 | ||
1019 | /* Write packet size. */ | |
1020 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1021 | ||
1022 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
1023 | stream_free(s); | |
1024 | ||
1025 | return ret; | |
1026 | } | |
1027 | ||
1028 | /* Send response to a get table chunk request to client */ | |
1029 | static int zsend_assign_table_chunk_response(struct zserv *client, | |
1030 | vrf_id_t vrf_id, | |
1031 | struct table_manager_chunk *tmc) | |
1032 | { | |
1033 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1034 | ||
1035 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, vrf_id); | |
1036 | ||
1037 | if (tmc) { | |
1038 | /* start and end labels */ | |
1039 | stream_putl(s, tmc->start); | |
1040 | stream_putl(s, tmc->end); | |
1041 | } | |
1042 | ||
1043 | /* Write packet size. */ | |
1044 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1045 | ||
21ccc0cf | 1046 | return zserv_send_message(client, s); |
bf094f69 QY |
1047 | } |
1048 | ||
1049 | static int zsend_table_manager_connect_response(struct zserv *client, | |
1050 | vrf_id_t vrf_id, | |
1051 | uint16_t result) | |
1052 | { | |
1053 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1054 | ||
1055 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, vrf_id); | |
1056 | ||
1057 | /* result */ | |
1058 | stream_putc(s, result); | |
1059 | ||
1060 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1061 | ||
21ccc0cf | 1062 | return zserv_send_message(client, s); |
bf094f69 QY |
1063 | } |
1064 | ||
1065 | /* Inbound message handling ------------------------------------------------ */ | |
1066 | ||
2b64873d | 1067 | const int cmd2type[] = { |
bf094f69 QY |
1068 | [ZEBRA_NEXTHOP_REGISTER] = RNH_NEXTHOP_TYPE, |
1069 | [ZEBRA_NEXTHOP_UNREGISTER] = RNH_NEXTHOP_TYPE, | |
1070 | [ZEBRA_IMPORT_ROUTE_REGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1071 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1072 | }; | |
1073 | ||
1074 | /* Nexthop register */ | |
1075 | static void zread_rnh_register(ZAPI_HANDLER_ARGS) | |
1076 | { | |
1077 | struct rnh *rnh; | |
1078 | struct stream *s; | |
1079 | struct prefix p; | |
1080 | unsigned short l = 0; | |
1081 | uint8_t flags = 0; | |
1082 | uint16_t type = cmd2type[hdr->command]; | |
1d30d1f4 | 1083 | bool exist; |
906b54dd DS |
1084 | bool flag_changed = false; |
1085 | uint8_t orig_flags; | |
bf094f69 QY |
1086 | |
1087 | if (IS_ZEBRA_DEBUG_NHT) | |
1088 | zlog_debug( | |
63efca0e | 1089 | "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u", |
bf094f69 QY |
1090 | zebra_route_string(client->proto), hdr->length, |
1091 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route", | |
1092 | zvrf->vrf->vrf_id); | |
1093 | ||
1094 | s = msg; | |
1095 | ||
469d6277 DS |
1096 | if (!client->nh_reg_time) |
1097 | client->nh_reg_time = monotime(NULL); | |
bf094f69 QY |
1098 | |
1099 | while (l < hdr->length) { | |
1100 | STREAM_GETC(s, flags); | |
1101 | STREAM_GETW(s, p.family); | |
1102 | STREAM_GETC(s, p.prefixlen); | |
1103 | l += 4; | |
1104 | if (p.family == AF_INET) { | |
ab5990d8 | 1105 | client->v4_nh_watch_add_cnt++; |
bf094f69 | 1106 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1107 | zlog_debug( |
bf094f69 | 1108 | "%s: Specified prefix hdr->length %d is too large for a v4 address", |
15569c58 | 1109 | __func__, p.prefixlen); |
bf094f69 QY |
1110 | return; |
1111 | } | |
1112 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1113 | l += IPV4_MAX_BYTELEN; | |
1114 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1115 | client->v6_nh_watch_add_cnt++; |
bf094f69 | 1116 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1117 | zlog_debug( |
bf094f69 | 1118 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
15569c58 | 1119 | __func__, p.prefixlen); |
bf094f69 QY |
1120 | return; |
1121 | } | |
1122 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1123 | l += IPV6_MAX_BYTELEN; | |
1124 | } else { | |
af4c2728 | 1125 | flog_err( |
e914ccbe | 1126 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1127 | "rnh_register: Received unknown family type %d\n", |
1128 | p.family); | |
1129 | return; | |
1130 | } | |
1d30d1f4 DS |
1131 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type, &exist); |
1132 | if (!rnh) | |
1133 | return; | |
1134 | ||
906b54dd | 1135 | orig_flags = rnh->flags; |
bf094f69 QY |
1136 | if (type == RNH_NEXTHOP_TYPE) { |
1137 | if (flags | |
1138 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1139 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1140 | else if (!flags | |
1141 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1142 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1143 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
1144 | if (flags | |
1145 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
1146 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1147 | else if (!flags | |
1148 | && CHECK_FLAG(rnh->flags, | |
1149 | ZEBRA_NHT_EXACT_MATCH)) | |
1150 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1151 | } | |
1152 | ||
906b54dd DS |
1153 | if (orig_flags != rnh->flags) |
1154 | flag_changed = true; | |
1155 | ||
bf094f69 | 1156 | /* Anything not AF_INET/INET6 has been filtered out above */ |
906b54dd | 1157 | if (!exist || flag_changed) |
73bf60a0 RW |
1158 | zebra_evaluate_rnh(zvrf, family2afi(p.family), 1, type, |
1159 | &p); | |
dd25a6b3 DS |
1160 | |
1161 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
bf094f69 QY |
1162 | } |
1163 | ||
1164 | stream_failure: | |
1165 | return; | |
1166 | } | |
1167 | ||
1168 | /* Nexthop register */ | |
1169 | static void zread_rnh_unregister(ZAPI_HANDLER_ARGS) | |
1170 | { | |
1171 | struct rnh *rnh; | |
1172 | struct stream *s; | |
1173 | struct prefix p; | |
1174 | unsigned short l = 0; | |
1175 | uint16_t type = cmd2type[hdr->command]; | |
1176 | ||
1177 | if (IS_ZEBRA_DEBUG_NHT) | |
1178 | zlog_debug( | |
63efca0e | 1179 | "rnh_unregister msg from client %s: hdr->length=%d vrf: %u", |
bf094f69 QY |
1180 | zebra_route_string(client->proto), hdr->length, |
1181 | zvrf->vrf->vrf_id); | |
1182 | ||
1183 | s = msg; | |
1184 | ||
1185 | while (l < hdr->length) { | |
1186 | uint8_t flags; | |
1187 | ||
1188 | STREAM_GETC(s, flags); | |
1189 | if (flags != 0) | |
1190 | goto stream_failure; | |
1191 | ||
1192 | STREAM_GETW(s, p.family); | |
1193 | STREAM_GETC(s, p.prefixlen); | |
1194 | l += 4; | |
1195 | if (p.family == AF_INET) { | |
ab5990d8 | 1196 | client->v4_nh_watch_rem_cnt++; |
bf094f69 | 1197 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1198 | zlog_debug( |
bf094f69 | 1199 | "%s: Specified prefix hdr->length %d is to large for a v4 address", |
15569c58 | 1200 | __func__, p.prefixlen); |
bf094f69 QY |
1201 | return; |
1202 | } | |
1203 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1204 | l += IPV4_MAX_BYTELEN; | |
1205 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1206 | client->v6_nh_watch_rem_cnt++; |
bf094f69 | 1207 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1208 | zlog_debug( |
bf094f69 | 1209 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
15569c58 | 1210 | __func__, p.prefixlen); |
bf094f69 QY |
1211 | return; |
1212 | } | |
1213 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1214 | l += IPV6_MAX_BYTELEN; | |
1215 | } else { | |
af4c2728 | 1216 | flog_err( |
e914ccbe | 1217 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1218 | "rnh_register: Received unknown family type %d\n", |
1219 | p.family); | |
1220 | return; | |
1221 | } | |
1222 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
1223 | if (rnh) { | |
1224 | client->nh_dereg_time = monotime(NULL); | |
1225 | zebra_remove_rnh_client(rnh, client, type); | |
1226 | } | |
1227 | } | |
1228 | stream_failure: | |
1229 | return; | |
1230 | } | |
1231 | ||
1232 | #define ZEBRA_MIN_FEC_LENGTH 5 | |
1233 | ||
1234 | /* FEC register */ | |
1235 | static void zread_fec_register(ZAPI_HANDLER_ARGS) | |
1236 | { | |
1237 | struct stream *s; | |
1238 | unsigned short l = 0; | |
1239 | struct prefix p; | |
1240 | uint16_t flags; | |
57592a53 | 1241 | uint32_t label = MPLS_INVALID_LABEL; |
bf094f69 QY |
1242 | uint32_t label_index = MPLS_INVALID_LABEL_INDEX; |
1243 | ||
1244 | s = msg; | |
1245 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1246 | if (!zvrf) | |
8b1766b1 | 1247 | return; |
bf094f69 QY |
1248 | |
1249 | /* | |
1250 | * The minimum amount of data that can be sent for one fec | |
1251 | * registration | |
1252 | */ | |
1253 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1254 | flog_err( |
e914ccbe | 1255 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1256 | "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode", |
1257 | hdr->length); | |
1258 | return; | |
1259 | } | |
1260 | ||
1261 | while (l < hdr->length) { | |
1262 | STREAM_GETW(s, flags); | |
1263 | memset(&p, 0, sizeof(p)); | |
1264 | STREAM_GETW(s, p.family); | |
1265 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1266 | flog_err( |
e914ccbe | 1267 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1268 | "fec_register: Received unknown family type %d\n", |
1269 | p.family); | |
1270 | return; | |
1271 | } | |
1272 | STREAM_GETC(s, p.prefixlen); | |
1273 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1274 | || (p.family == AF_INET6 | |
1275 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1276 | zlog_debug( |
bf094f69 | 1277 | "%s: Specified prefix hdr->length: %d is to long for %d", |
15569c58 | 1278 | __func__, p.prefixlen, p.family); |
bf094f69 QY |
1279 | return; |
1280 | } | |
1281 | l += 5; | |
1282 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1283 | l += PSIZE(p.prefixlen); | |
57592a53 AD |
1284 | if (flags & ZEBRA_FEC_REGISTER_LABEL) { |
1285 | STREAM_GETL(s, label); | |
1286 | l += 4; | |
1287 | } else if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { | |
bf094f69 QY |
1288 | STREAM_GETL(s, label_index); |
1289 | l += 4; | |
57592a53 AD |
1290 | } |
1291 | ||
1292 | zebra_mpls_fec_register(zvrf, &p, label, label_index, client); | |
bf094f69 QY |
1293 | } |
1294 | ||
1295 | stream_failure: | |
1296 | return; | |
1297 | } | |
1298 | ||
1299 | /* FEC unregister */ | |
1300 | static void zread_fec_unregister(ZAPI_HANDLER_ARGS) | |
1301 | { | |
1302 | struct stream *s; | |
1303 | unsigned short l = 0; | |
1304 | struct prefix p; | |
1305 | uint16_t flags; | |
1306 | ||
1307 | s = msg; | |
1308 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1309 | if (!zvrf) | |
8b1766b1 | 1310 | return; |
bf094f69 QY |
1311 | |
1312 | /* | |
1313 | * The minimum amount of data that can be sent for one | |
1314 | * fec unregistration | |
1315 | */ | |
1316 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1317 | flog_err( |
e914ccbe | 1318 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1319 | "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode", |
1320 | hdr->length); | |
1321 | return; | |
1322 | } | |
1323 | ||
1324 | while (l < hdr->length) { | |
1325 | STREAM_GETW(s, flags); | |
1326 | if (flags != 0) | |
1327 | goto stream_failure; | |
1328 | ||
1329 | memset(&p, 0, sizeof(p)); | |
1330 | STREAM_GETW(s, p.family); | |
1331 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1332 | flog_err( |
e914ccbe | 1333 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1334 | "fec_unregister: Received unknown family type %d\n", |
1335 | p.family); | |
1336 | return; | |
1337 | } | |
1338 | STREAM_GETC(s, p.prefixlen); | |
1339 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1340 | || (p.family == AF_INET6 | |
1341 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1342 | zlog_debug( |
bf094f69 | 1343 | "%s: Received prefix hdr->length %d which is greater than %d can support", |
15569c58 | 1344 | __func__, p.prefixlen, p.family); |
bf094f69 QY |
1345 | return; |
1346 | } | |
1347 | l += 5; | |
1348 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1349 | l += PSIZE(p.prefixlen); | |
1350 | zebra_mpls_fec_unregister(zvrf, &p, client); | |
1351 | } | |
1352 | ||
1353 | stream_failure: | |
1354 | return; | |
1355 | } | |
1356 | ||
1357 | ||
1358 | /* | |
1359 | * Register zebra server interface information. | |
1360 | * Send current all interface and address information. | |
1361 | */ | |
1362 | static void zread_interface_add(ZAPI_HANDLER_ARGS) | |
1363 | { | |
1364 | struct vrf *vrf; | |
1365 | struct interface *ifp; | |
1366 | ||
9212d1e1 | 1367 | vrf_id_t vrf_id = zvrf_id(zvrf); |
1368 | if (vrf_id != VRF_DEFAULT && vrf_id != VRF_UNKNOWN) { | |
1369 | FOR_ALL_INTERFACES (zvrf->vrf, ifp) { | |
1370 | /* Skip pseudo interface. */ | |
1371 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1372 | continue; | |
1373 | ||
1374 | zsend_interface_add(client, ifp); | |
1375 | zsend_interface_link_params(client, ifp); | |
1376 | zsend_interface_addresses(client, ifp); | |
1377 | } | |
1378 | return; | |
1379 | } | |
1380 | ||
bf094f69 QY |
1381 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { |
1382 | FOR_ALL_INTERFACES (vrf, ifp) { | |
1383 | /* Skip pseudo interface. */ | |
1384 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1385 | continue; | |
1386 | ||
1387 | zsend_interface_add(client, ifp); | |
27ecbea3 | 1388 | zsend_interface_link_params(client, ifp); |
bf094f69 QY |
1389 | zsend_interface_addresses(client, ifp); |
1390 | } | |
1391 | } | |
1392 | } | |
1393 | ||
1394 | /* Unregister zebra server interface information. */ | |
1395 | static void zread_interface_delete(ZAPI_HANDLER_ARGS) | |
1396 | { | |
bf094f69 QY |
1397 | } |
1398 | ||
c3bd894e QY |
1399 | /* |
1400 | * Handle message requesting interface be set up or down. | |
1401 | */ | |
1402 | static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS) | |
1403 | { | |
1404 | ifindex_t ifindex; | |
1405 | struct interface *ifp; | |
1406 | char down; | |
1407 | ||
1408 | STREAM_GETL(msg, ifindex); | |
1409 | STREAM_GETC(msg, down); | |
1410 | ||
1411 | /* set ifdown */ | |
1412 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT), ifindex); | |
c3bd894e | 1413 | |
65dc7dd3 QY |
1414 | if (ifp) { |
1415 | zlog_info("Setting interface %s (%u): protodown %s", ifp->name, | |
1416 | ifindex, down ? "on" : "off"); | |
1417 | zebra_if_set_protodown(ifp, down); | |
1418 | } else { | |
1419 | zlog_warn( | |
1420 | "Cannot set protodown %s for interface %u; does not exist", | |
1421 | down ? "on" : "off", ifindex); | |
1422 | } | |
1423 | ||
c3bd894e QY |
1424 | |
1425 | stream_failure: | |
1426 | return; | |
1427 | } | |
1428 | ||
786a9bd9 | 1429 | bool zserv_nexthop_num_warn(const char *caller, const struct prefix *p, |
bf094f69 QY |
1430 | const unsigned int nexthop_num) |
1431 | { | |
b3f2b590 | 1432 | if (nexthop_num > zrouter.multipath_num) { |
bf094f69 | 1433 | char buff[PREFIX2STR_BUFFER]; |
8b1766b1 | 1434 | |
e270f004 SW |
1435 | if (p) |
1436 | prefix2str(p, buff, sizeof(buff)); | |
1437 | ||
9df414fe | 1438 | flog_warn( |
e914ccbe | 1439 | EC_ZEBRA_MORE_NH_THAN_MULTIPATH, |
bf094f69 | 1440 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", |
e270f004 SW |
1441 | caller, (p ? buff : "(NULL)"), nexthop_num, |
1442 | zrouter.multipath_num); | |
786a9bd9 | 1443 | return true; |
bf094f69 | 1444 | } |
786a9bd9 DS |
1445 | |
1446 | return false; | |
bf094f69 QY |
1447 | } |
1448 | ||
62e46303 MS |
1449 | /* |
1450 | * Create a new nexthop based on a zapi nexthop. | |
1451 | */ | |
2f35a820 DS |
1452 | static struct nexthop *nexthop_from_zapi(const struct zapi_nexthop *api_nh, |
1453 | uint32_t flags, struct prefix *p, | |
1454 | uint16_t backup_nexthop_num) | |
62e46303 MS |
1455 | { |
1456 | struct nexthop *nexthop = NULL; | |
1457 | struct ipaddr vtep_ip; | |
1458 | struct interface *ifp; | |
474aebd9 | 1459 | int i; |
62e46303 MS |
1460 | char nhbuf[INET6_ADDRSTRLEN] = ""; |
1461 | ||
62e46303 MS |
1462 | switch (api_nh->type) { |
1463 | case NEXTHOP_TYPE_IFINDEX: | |
1464 | nexthop = nexthop_from_ifindex(api_nh->ifindex, api_nh->vrf_id); | |
1465 | break; | |
1466 | case NEXTHOP_TYPE_IPV4: | |
1467 | if (IS_ZEBRA_DEBUG_RECV) { | |
1468 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1469 | sizeof(nhbuf)); | |
1470 | zlog_debug("%s: nh=%s, vrf_id=%d", __func__, | |
1471 | nhbuf, api_nh->vrf_id); | |
1472 | } | |
1473 | nexthop = nexthop_from_ipv4(&api_nh->gate.ipv4, NULL, | |
1474 | api_nh->vrf_id); | |
1475 | break; | |
1476 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1477 | if (IS_ZEBRA_DEBUG_RECV) { | |
1478 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1479 | sizeof(nhbuf)); | |
1480 | zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d", | |
1481 | __func__, nhbuf, api_nh->vrf_id, | |
1482 | api_nh->ifindex); | |
1483 | } | |
1484 | ||
1485 | nexthop = nexthop_from_ipv4_ifindex( | |
1486 | &api_nh->gate.ipv4, NULL, api_nh->ifindex, | |
1487 | api_nh->vrf_id); | |
1488 | ||
62e46303 MS |
1489 | /* Special handling for IPv4 routes sourced from EVPN: |
1490 | * the nexthop and associated MAC need to be installed. | |
1491 | */ | |
2f35a820 | 1492 | if (CHECK_FLAG(flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
62e46303 MS |
1493 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); |
1494 | vtep_ip.ipa_type = IPADDR_V4; | |
1495 | memcpy(&(vtep_ip.ipaddr_v4), &(api_nh->gate.ipv4), | |
1496 | sizeof(struct in_addr)); | |
1497 | zebra_vxlan_evpn_vrf_route_add( | |
ff9aca4f | 1498 | api_nh->vrf_id, &api_nh->rmac, &vtep_ip, p); |
62e46303 MS |
1499 | } |
1500 | break; | |
1501 | case NEXTHOP_TYPE_IPV6: | |
1502 | if (IS_ZEBRA_DEBUG_RECV) { | |
1503 | inet_ntop(AF_INET6, &api_nh->gate.ipv6, nhbuf, | |
1504 | sizeof(nhbuf)); | |
1505 | zlog_debug("%s: nh=%s, vrf_id=%d", __func__, | |
1506 | nhbuf, api_nh->vrf_id); | |
1507 | } | |
1508 | nexthop = nexthop_from_ipv6(&api_nh->gate.ipv6, api_nh->vrf_id); | |
1509 | break; | |
1510 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1511 | if (IS_ZEBRA_DEBUG_RECV) { | |
1512 | inet_ntop(AF_INET6, &api_nh->gate.ipv6, nhbuf, | |
1513 | sizeof(nhbuf)); | |
1514 | zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d", | |
1515 | __func__, nhbuf, api_nh->vrf_id, | |
1516 | api_nh->ifindex); | |
1517 | } | |
1518 | nexthop = nexthop_from_ipv6_ifindex(&api_nh->gate.ipv6, | |
1519 | api_nh->ifindex, | |
1520 | api_nh->vrf_id); | |
1521 | ||
1522 | /* Special handling for IPv6 routes sourced from EVPN: | |
1523 | * the nexthop and associated MAC need to be installed. | |
1524 | */ | |
2f35a820 | 1525 | if (CHECK_FLAG(flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
62e46303 MS |
1526 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); |
1527 | vtep_ip.ipa_type = IPADDR_V6; | |
1528 | memcpy(&vtep_ip.ipaddr_v6, &(api_nh->gate.ipv6), | |
1529 | sizeof(struct in6_addr)); | |
1530 | zebra_vxlan_evpn_vrf_route_add( | |
ff9aca4f | 1531 | api_nh->vrf_id, &api_nh->rmac, &vtep_ip, p); |
62e46303 MS |
1532 | } |
1533 | break; | |
1534 | case NEXTHOP_TYPE_BLACKHOLE: | |
1535 | if (IS_ZEBRA_DEBUG_RECV) | |
1536 | zlog_debug("%s: nh blackhole %d", | |
1537 | __func__, api_nh->bh_type); | |
1538 | ||
1539 | nexthop = nexthop_from_blackhole(api_nh->bh_type); | |
1540 | break; | |
1541 | } | |
1542 | ||
1543 | /* Return early if we couldn't process the zapi nexthop */ | |
1544 | if (nexthop == NULL) { | |
1545 | goto done; | |
1546 | } | |
1547 | ||
12b4d77b | 1548 | /* Mark nexthop as onlink either if client has explicitly told us |
1549 | * to or if the nexthop is on an 'unnumbered' interface. | |
1550 | */ | |
62e46303 MS |
1551 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK)) |
1552 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_ONLINK); | |
12b4d77b | 1553 | else if (api_nh->type == NEXTHOP_TYPE_IPV4_IFINDEX) { |
1554 | ifp = if_lookup_by_index(api_nh->ifindex, api_nh->vrf_id); | |
1555 | if (ifp && connected_is_unnumbered(ifp)) | |
1556 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_ONLINK); | |
1557 | } | |
62e46303 MS |
1558 | |
1559 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_WEIGHT)) | |
1560 | nexthop->weight = api_nh->weight; | |
1561 | ||
1d48702e | 1562 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP)) { |
474aebd9 MS |
1563 | /* Validate count */ |
1564 | if (api_nh->backup_num > NEXTHOP_MAX_BACKUPS) { | |
1d48702e | 1565 | if (IS_ZEBRA_DEBUG_RECV || IS_ZEBRA_DEBUG_EVENT) |
474aebd9 MS |
1566 | zlog_debug("%s: invalid backup nh count %d", |
1567 | __func__, api_nh->backup_num); | |
1568 | nexthop_free(nexthop); | |
1569 | nexthop = NULL; | |
1570 | goto done; | |
1571 | } | |
1572 | ||
1573 | /* Copy backup info */ | |
1574 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_HAS_BACKUP); | |
1575 | nexthop->backup_num = api_nh->backup_num; | |
1576 | ||
1577 | for (i = 0; i < api_nh->backup_num; i++) { | |
1578 | /* Validate backup index */ | |
2f35a820 | 1579 | if (api_nh->backup_idx[i] < backup_nexthop_num) { |
474aebd9 MS |
1580 | nexthop->backup_idx[i] = api_nh->backup_idx[i]; |
1581 | } else { | |
1582 | if (IS_ZEBRA_DEBUG_RECV || IS_ZEBRA_DEBUG_EVENT) | |
1583 | zlog_debug("%s: invalid backup nh idx %d", | |
1584 | __func__, | |
1585 | api_nh->backup_idx[i]); | |
1586 | nexthop_free(nexthop); | |
1587 | nexthop = NULL; | |
1588 | goto done; | |
1589 | } | |
1d48702e MS |
1590 | } |
1591 | } | |
474aebd9 | 1592 | |
62e46303 MS |
1593 | done: |
1594 | return nexthop; | |
1595 | } | |
1596 | ||
2f35a820 DS |
1597 | static bool zapi_read_nexthops(struct zserv *client, struct prefix *p, |
1598 | struct zapi_nexthop *nhops, uint32_t flags, | |
1599 | uint32_t message, uint16_t nexthop_num, | |
1600 | uint16_t backup_nh_num, | |
f70da2a3 DS |
1601 | struct nexthop_group **png, |
1602 | struct nhg_backup_info **pbnhg) | |
bf094f69 | 1603 | { |
0eb97b86 | 1604 | struct nexthop_group *ng = NULL; |
1d48702e | 1605 | struct nhg_backup_info *bnhg = NULL; |
2f35a820 | 1606 | uint16_t i; |
f70da2a3 | 1607 | struct nexthop *last_nh = NULL; |
bf094f69 | 1608 | |
f70da2a3 | 1609 | assert(!(png && pbnhg)); |
c2c02b76 | 1610 | |
2f35a820 | 1611 | if (png) |
66c28560 | 1612 | ng = nexthop_group_new(); |
bf094f69 | 1613 | |
2f35a820 | 1614 | if (pbnhg && backup_nh_num > 0) { |
f70da2a3 | 1615 | if (IS_ZEBRA_DEBUG_RECV) |
2f35a820 DS |
1616 | zlog_debug("%s: adding %d backup nexthops", __func__, |
1617 | backup_nh_num); | |
7fcb24bb | 1618 | |
66c28560 | 1619 | bnhg = zebra_nhg_backup_alloc(); |
62e46303 MS |
1620 | } |
1621 | ||
bf094f69 QY |
1622 | /* |
1623 | * TBD should _all_ of the nexthop add operations use | |
1624 | * api_nh->vrf_id instead of re->vrf_id ? I only changed | |
1625 | * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6. | |
1626 | */ | |
f70da2a3 DS |
1627 | for (i = 0; i < nexthop_num; i++) { |
1628 | struct nexthop *nexthop; | |
1629 | enum lsp_types_t label_type; | |
1630 | char nhbuf[NEXTHOP_STRLEN]; | |
1631 | char labelbuf[MPLS_LABEL_STRLEN]; | |
1632 | struct zapi_nexthop *api_nh = &nhops[i]; | |
7fcb24bb | 1633 | |
62e46303 | 1634 | /* Convert zapi nexthop */ |
2f35a820 | 1635 | nexthop = nexthop_from_zapi(api_nh, flags, p, backup_nh_num); |
62e46303 MS |
1636 | if (!nexthop) { |
1637 | flog_warn( | |
1638 | EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
f70da2a3 DS |
1639 | "%s: Nexthops Specified: %u(%u) but we failed to properly create one", |
1640 | __func__, nexthop_num, i); | |
1641 | if (ng) | |
1642 | nexthop_group_delete(&ng); | |
1643 | if (bnhg) | |
1644 | zebra_nhg_backup_free(&bnhg); | |
1645 | return false; | |
62e46303 | 1646 | } |
7fcb24bb | 1647 | |
ff9aca4f SW |
1648 | if (bnhg |
1649 | && CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_HAS_BACKUP)) { | |
f70da2a3 DS |
1650 | if (IS_ZEBRA_DEBUG_RECV) { |
1651 | nexthop2str(nexthop, nhbuf, sizeof(nhbuf)); | |
1652 | zlog_debug("%s: backup nh %s with BACKUP flag!", | |
1653 | __func__, nhbuf); | |
1654 | } | |
1655 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_HAS_BACKUP); | |
1656 | nexthop->backup_num = 0; | |
1657 | } | |
1658 | ||
2f35a820 | 1659 | if (CHECK_FLAG(message, ZAPI_MESSAGE_SRTE)) { |
31f937fb SM |
1660 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_SRTE); |
1661 | nexthop->srte_color = api_nh->srte_color; | |
1662 | } | |
1663 | ||
62e46303 MS |
1664 | /* MPLS labels for BGP-LU or Segment Routing */ |
1665 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL) | |
1666 | && api_nh->type != NEXTHOP_TYPE_IFINDEX | |
1667 | && api_nh->type != NEXTHOP_TYPE_BLACKHOLE | |
1668 | && api_nh->label_num > 0) { | |
7fcb24bb | 1669 | |
62e46303 | 1670 | label_type = lsp_type_from_re_type(client->proto); |
62e46303 MS |
1671 | nexthop_add_labels(nexthop, label_type, |
1672 | api_nh->label_num, | |
1673 | &api_nh->labels[0]); | |
bf094f69 | 1674 | } |
bf094f69 | 1675 | |
1d48702e MS |
1676 | if (IS_ZEBRA_DEBUG_RECV) { |
1677 | labelbuf[0] = '\0'; | |
1678 | nhbuf[0] = '\0'; | |
1679 | ||
1680 | nexthop2str(nexthop, nhbuf, sizeof(nhbuf)); | |
1681 | ||
1682 | if (nexthop->nh_label && | |
1683 | nexthop->nh_label->num_labels > 0) { | |
1684 | mpls_label2str(nexthop->nh_label->num_labels, | |
1685 | nexthop->nh_label->label, | |
1686 | labelbuf, sizeof(labelbuf), | |
1687 | false); | |
1688 | } | |
1689 | ||
1690 | zlog_debug("%s: nh=%s, vrf_id=%d %s", | |
1691 | __func__, nhbuf, api_nh->vrf_id, labelbuf); | |
1692 | } | |
1693 | ||
66c28560 | 1694 | if (ng) { |
f70da2a3 | 1695 | /* Add new nexthop to temporary list. This list is |
ff9aca4f SW |
1696 | * canonicalized - sorted - so that it can be hashed |
1697 | * later in route processing. We expect that the sender | |
1698 | * has sent the list sorted, and the zapi client api | |
1699 | * attempts to enforce that, so this should be | |
1700 | * inexpensive - but it is necessary to support shared | |
1701 | * nexthop-groups. | |
f70da2a3 DS |
1702 | */ |
1703 | nexthop_group_add_sorted(ng, nexthop); | |
1704 | } | |
1705 | if (bnhg) { | |
ff9aca4f SW |
1706 | /* Note that the order of the backup nexthops is |
1707 | * significant, so we don't sort this list as we do the | |
1708 | * primary nexthops, we just append. | |
f70da2a3 DS |
1709 | */ |
1710 | if (last_nh) | |
1711 | NEXTHOP_APPEND(last_nh, nexthop); | |
1712 | else | |
1713 | bnhg->nhe->nhg.nexthop = nexthop; | |
1714 | ||
1715 | last_nh = nexthop; | |
1716 | } | |
62e46303 MS |
1717 | } |
1718 | ||
66c28560 SW |
1719 | |
1720 | /* succesfully read, set caller pointers now */ | |
1721 | if (png) | |
1722 | *png = ng; | |
1723 | ||
1724 | if (pbnhg) | |
1725 | *pbnhg = bnhg; | |
1726 | ||
f70da2a3 DS |
1727 | return true; |
1728 | } | |
62e46303 | 1729 | |
21735352 SW |
1730 | int zapi_nhg_decode(struct stream *s, int cmd, struct zapi_nhg *api_nhg) |
1731 | { | |
1732 | uint16_t i; | |
1733 | struct zapi_nexthop *znh; | |
1734 | ||
1735 | STREAM_GETW(s, api_nhg->proto); | |
1736 | STREAM_GETL(s, api_nhg->id); | |
1737 | ||
1738 | if (cmd == ZEBRA_NHG_DEL) | |
1739 | goto done; | |
1740 | ||
1741 | /* Nexthops */ | |
1742 | STREAM_GETW(s, api_nhg->nexthop_num); | |
1743 | ||
1744 | if (zserv_nexthop_num_warn(__func__, NULL, api_nhg->nexthop_num)) | |
1745 | return -1; | |
1746 | ||
1747 | if (api_nhg->nexthop_num <= 0) { | |
1748 | flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
1749 | "%s: No nexthops sent", __func__); | |
1750 | return -1; | |
1751 | } | |
1752 | ||
1753 | for (i = 0; i < api_nhg->nexthop_num; i++) { | |
1754 | znh = &((api_nhg->nexthops)[i]); | |
1755 | ||
1756 | if (zapi_nexthop_decode(s, znh, 0, 0) != 0) { | |
1757 | flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
1758 | "%s: Nexthop creation failed", __func__); | |
1759 | return -1; | |
1760 | } | |
1761 | } | |
1762 | ||
1763 | /* Backup Nexthops */ | |
1764 | STREAM_GETW(s, api_nhg->backup_nexthop_num); | |
1765 | ||
1766 | if (zserv_nexthop_num_warn(__func__, NULL, api_nhg->backup_nexthop_num)) | |
1767 | return -1; | |
1768 | ||
1769 | for (i = 0; i < api_nhg->backup_nexthop_num; i++) { | |
1770 | znh = &((api_nhg->backup_nexthops)[i]); | |
1771 | ||
1772 | if (zapi_nexthop_decode(s, znh, 0, 0) != 0) { | |
1773 | flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
1774 | "%s: Backup Nexthop creation failed", | |
1775 | __func__); | |
1776 | return -1; | |
1777 | } | |
1778 | } | |
1779 | ||
1780 | done: | |
1781 | return 0; | |
1782 | ||
1783 | stream_failure: | |
1784 | flog_warn( | |
1785 | EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
1786 | "%s: Nexthop Group decode failed with some sort of stream read failure", | |
1787 | __func__); | |
1788 | return -1; | |
1789 | } | |
1790 | ||
2f35a820 DS |
1791 | static void zread_nhg_del(ZAPI_HANDLER_ARGS) |
1792 | { | |
21735352 SW |
1793 | struct stream *s; |
1794 | struct zapi_nhg api_nhg = {}; | |
0885b1e3 | 1795 | struct nhg_hash_entry *nhe; |
2f35a820 | 1796 | |
21735352 SW |
1797 | s = msg; |
1798 | if (zapi_nhg_decode(s, hdr->command, &api_nhg) < 0) { | |
1799 | if (IS_ZEBRA_DEBUG_RECV) | |
1800 | zlog_debug("%s: Unable to decode zapi_nhg sent", | |
1801 | __func__); | |
1802 | return; | |
1803 | } | |
2f35a820 DS |
1804 | |
1805 | /* | |
1806 | * Delete the received nhg id | |
2f35a820 | 1807 | */ |
0885b1e3 | 1808 | |
21735352 | 1809 | nhe = zebra_nhg_proto_del(api_nhg.id, api_nhg.proto); |
0885b1e3 SW |
1810 | |
1811 | if (nhe) { | |
6fae63d2 | 1812 | zebra_nhg_decrement_ref(nhe); |
21735352 SW |
1813 | nhg_notify(api_nhg.proto, client->instance, api_nhg.id, |
1814 | ZAPI_NHG_REMOVED); | |
0885b1e3 | 1815 | } else |
21735352 SW |
1816 | nhg_notify(api_nhg.proto, client->instance, api_nhg.id, |
1817 | ZAPI_NHG_REMOVE_FAIL); | |
2f35a820 DS |
1818 | } |
1819 | ||
8b2d3a0f | 1820 | static void zread_nhg_add(ZAPI_HANDLER_ARGS) |
2f35a820 DS |
1821 | { |
1822 | struct stream *s; | |
21735352 | 1823 | struct zapi_nhg api_nhg = {}; |
2f35a820 | 1824 | struct nexthop_group *nhg = NULL; |
21735352 | 1825 | struct nhg_backup_info *bnhg = NULL; |
0885b1e3 | 1826 | struct nhg_hash_entry *nhe; |
2f35a820 | 1827 | |
2f35a820 | 1828 | s = msg; |
21735352 SW |
1829 | if (zapi_nhg_decode(s, hdr->command, &api_nhg) < 0) { |
1830 | if (IS_ZEBRA_DEBUG_RECV) | |
1831 | zlog_debug("%s: Unable to decode zapi_nhg sent", | |
1832 | __func__); | |
68671c74 SW |
1833 | return; |
1834 | } | |
1835 | ||
21735352 SW |
1836 | if ((!zapi_read_nexthops(client, NULL, api_nhg.nexthops, 0, 0, |
1837 | api_nhg.nexthop_num, | |
1838 | api_nhg.backup_nexthop_num, &nhg, NULL)) | |
1839 | || (!zapi_read_nexthops(client, NULL, api_nhg.backup_nexthops, 0, 0, | |
1840 | api_nhg.backup_nexthop_num, | |
1841 | api_nhg.backup_nexthop_num, NULL, &bnhg))) { | |
2f35a820 | 1842 | |
2f35a820 | 1843 | flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED, |
ff9aca4f | 1844 | "%s: Nexthop Group Creation failed", __func__); |
2f35a820 DS |
1845 | return; |
1846 | } | |
0885b1e3 | 1847 | |
2f35a820 | 1848 | /* |
8b2d3a0f | 1849 | * Create the nhg |
2f35a820 | 1850 | */ |
21735352 | 1851 | nhe = zebra_nhg_proto_add(api_nhg.id, api_nhg.proto, nhg, 0); |
0885b1e3 SW |
1852 | |
1853 | nexthop_group_delete(&nhg); | |
21735352 | 1854 | zebra_nhg_backup_free(&bnhg); |
0885b1e3 SW |
1855 | |
1856 | /* | |
1857 | * TODO: | |
1858 | * Assume fully resolved for now and install. | |
1859 | * | |
1860 | * Resolution is going to need some more work. | |
1861 | */ | |
73937edb | 1862 | if (nhe) |
21735352 SW |
1863 | nhg_notify(api_nhg.proto, client->instance, api_nhg.id, |
1864 | ZAPI_NHG_INSTALLED); | |
73937edb | 1865 | else |
21735352 SW |
1866 | nhg_notify(api_nhg.proto, client->instance, api_nhg.id, |
1867 | ZAPI_NHG_FAIL_INSTALL); | |
2f35a820 DS |
1868 | } |
1869 | ||
f70da2a3 DS |
1870 | static void zread_route_add(ZAPI_HANDLER_ARGS) |
1871 | { | |
1872 | struct stream *s; | |
1873 | struct zapi_route api; | |
1874 | afi_t afi; | |
1875 | struct prefix_ipv6 *src_p = NULL; | |
1876 | struct route_entry *re; | |
1877 | struct nexthop_group *ng = NULL; | |
1878 | struct nhg_backup_info *bnhg = NULL; | |
1879 | int ret; | |
1880 | vrf_id_t vrf_id; | |
1881 | struct nhg_hash_entry nhe; | |
0eb97b86 | 1882 | |
f70da2a3 DS |
1883 | s = msg; |
1884 | if (zapi_route_decode(s, &api) < 0) { | |
1885 | if (IS_ZEBRA_DEBUG_RECV) | |
1886 | zlog_debug("%s: Unable to decode zapi_route sent", | |
1887 | __func__); | |
1888 | return; | |
1889 | } | |
1d48702e | 1890 | |
f70da2a3 | 1891 | vrf_id = zvrf_id(zvrf); |
31f937fb | 1892 | |
2dbe669b DA |
1893 | if (IS_ZEBRA_DEBUG_RECV) |
1894 | zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x", | |
1895 | __func__, vrf_id, api.tableid, &api.prefix, | |
f70da2a3 | 1896 | (int)api.message, api.flags); |
0eb97b86 | 1897 | |
f70da2a3 DS |
1898 | /* Allocate new route. */ |
1899 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1900 | re->type = api.type; | |
1901 | re->instance = api.instance; | |
1902 | re->flags = api.flags; | |
1903 | re->uptime = monotime(NULL); | |
1904 | re->vrf_id = vrf_id; | |
1d48702e | 1905 | |
f70da2a3 DS |
1906 | if (api.tableid) |
1907 | re->table = api.tableid; | |
1908 | else | |
1909 | re->table = zvrf->table_id; | |
1d48702e | 1910 | |
27141ea9 DS |
1911 | if (!CHECK_FLAG(api.message, ZAPI_MESSAGE_NHG) |
1912 | && (!CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP) | |
1913 | || api.nexthop_num == 0)) { | |
ff9aca4f SW |
1914 | flog_warn( |
1915 | EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS, | |
1916 | "%s: received a route without nexthops for prefix %pFX from client %s", | |
1917 | __func__, &api.prefix, | |
1918 | zebra_route_string(client->proto)); | |
1d48702e | 1919 | |
f70da2a3 DS |
1920 | XFREE(MTYPE_RE, re); |
1921 | return; | |
1922 | } | |
1d48702e | 1923 | |
f70da2a3 | 1924 | /* Report misuse of the backup flag */ |
ff9aca4f SW |
1925 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_BACKUP_NEXTHOPS) |
1926 | && api.backup_nexthop_num == 0) { | |
f70da2a3 | 1927 | if (IS_ZEBRA_DEBUG_RECV || IS_ZEBRA_DEBUG_EVENT) |
ff9aca4f SW |
1928 | zlog_debug( |
1929 | "%s: client %s: BACKUP flag set but no backup nexthops, prefix %pFX", | |
1930 | __func__, zebra_route_string(client->proto), | |
1931 | &api.prefix); | |
f70da2a3 | 1932 | } |
62e46303 | 1933 | |
50db3f2f SW |
1934 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NHG)) |
1935 | re->nhe_id = api.nhgid; | |
1936 | ||
1937 | if (!re->nhe_id | |
2b5ecd4c SW |
1938 | && (!zapi_read_nexthops(client, &api.prefix, api.nexthops, |
1939 | api.flags, api.message, api.nexthop_num, | |
1940 | api.backup_nexthop_num, &ng, NULL) | |
1941 | || !zapi_read_nexthops(client, &api.prefix, api.backup_nexthops, | |
1942 | api.flags, api.message, | |
1943 | api.backup_nexthop_num, | |
1944 | api.backup_nexthop_num, NULL, &bnhg))) { | |
21735352 SW |
1945 | |
1946 | nexthop_group_delete(&ng); | |
1947 | zebra_nhg_backup_free(&bnhg); | |
f70da2a3 DS |
1948 | XFREE(MTYPE_RE, re); |
1949 | return; | |
7fcb24bb RW |
1950 | } |
1951 | ||
bf094f69 QY |
1952 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) |
1953 | re->distance = api.distance; | |
1954 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1955 | re->metric = api.metric; | |
1956 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1957 | re->tag = api.tag; | |
1958 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_MTU)) | |
1959 | re->mtu = api.mtu; | |
1960 | ||
1961 | afi = family2afi(api.prefix.family); | |
1962 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1963 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1964 | "%s: Received SRC Prefix but afi is not v6", |
15569c58 | 1965 | __func__); |
0eb97b86 | 1966 | nexthop_group_delete(&ng); |
1d48702e | 1967 | zebra_nhg_backup_free(&bnhg); |
bf094f69 QY |
1968 | XFREE(MTYPE_RE, re); |
1969 | return; | |
1970 | } | |
1971 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1972 | src_p = &api.src_prefix; | |
1973 | ||
5e7939a5 DS |
1974 | if (api.safi != SAFI_UNICAST && api.safi != SAFI_MULTICAST) { |
1975 | flog_warn(EC_LIB_ZAPI_MISSMATCH, | |
1976 | "%s: Received safi: %d but we can only accept UNICAST or MULTICAST", | |
1977 | __func__, api.safi); | |
1978 | nexthop_group_delete(&ng); | |
1d48702e | 1979 | zebra_nhg_backup_free(&bnhg); |
5e7939a5 DS |
1980 | XFREE(MTYPE_RE, re); |
1981 | return; | |
1982 | } | |
1d48702e | 1983 | |
50db3f2f SW |
1984 | /* |
1985 | * If we have an ID, this proto owns the NHG it sent along with the | |
1986 | * route, so we just send the ID into rib code with it. | |
1987 | * | |
1988 | * Havent figured out how to handle backup NHs with this yet, so lets | |
1989 | * keep that separate. | |
1990 | * Include backup info with the route. We use a temporary nhe here; | |
377e29f7 MS |
1991 | * if this is a new/unknown nhe, a new copy will be allocated |
1992 | * and stored. | |
1993 | */ | |
50db3f2f SW |
1994 | if (!re->nhe_id) { |
1995 | zebra_nhe_init(&nhe, afi, ng->nexthop); | |
1996 | nhe.nhg.nexthop = ng->nexthop; | |
1997 | nhe.backup_info = bnhg; | |
1998 | } | |
1d48702e MS |
1999 | ret = rib_add_multipath_nhe(afi, api.safi, &api.prefix, src_p, |
2000 | re, &nhe); | |
bf094f69 | 2001 | |
377e29f7 MS |
2002 | /* At this point, these allocations are not needed: 're' has been |
2003 | * retained or freed, and if 're' still exists, it is using | |
2004 | * a reference to a shared group object. | |
2005 | */ | |
2006 | nexthop_group_delete(&ng); | |
2007 | if (bnhg) | |
2008 | zebra_nhg_backup_free(&bnhg); | |
2009 | ||
bf094f69 QY |
2010 | /* Stats */ |
2011 | switch (api.prefix.family) { | |
2012 | case AF_INET: | |
2013 | if (ret > 0) | |
2014 | client->v4_route_add_cnt++; | |
2015 | else if (ret < 0) | |
2016 | client->v4_route_upd8_cnt++; | |
2017 | break; | |
2018 | case AF_INET6: | |
2019 | if (ret > 0) | |
2020 | client->v6_route_add_cnt++; | |
2021 | else if (ret < 0) | |
2022 | client->v6_route_upd8_cnt++; | |
2023 | break; | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | static void zread_route_del(ZAPI_HANDLER_ARGS) | |
2028 | { | |
2029 | struct stream *s; | |
2030 | struct zapi_route api; | |
2031 | afi_t afi; | |
2032 | struct prefix_ipv6 *src_p = NULL; | |
2033 | uint32_t table_id; | |
2034 | ||
2035 | s = msg; | |
2036 | if (zapi_route_decode(s, &api) < 0) | |
2037 | return; | |
2038 | ||
2039 | afi = family2afi(api.prefix.family); | |
2040 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 2041 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 2042 | "%s: Received a src prefix while afi is not v6", |
15569c58 | 2043 | __func__); |
bf094f69 QY |
2044 | return; |
2045 | } | |
2046 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
2047 | src_p = &api.src_prefix; | |
2048 | ||
60ca3cc2 | 2049 | if (api.tableid) |
bf094f69 QY |
2050 | table_id = api.tableid; |
2051 | else | |
2052 | table_id = zvrf->table_id; | |
2053 | ||
2dbe669b DA |
2054 | if (IS_ZEBRA_DEBUG_RECV) |
2055 | zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x", | |
2056 | __func__, zvrf_id(zvrf), table_id, &api.prefix, | |
c2c02b76 | 2057 | (int)api.message, api.flags); |
c2c02b76 | 2058 | |
bf094f69 | 2059 | rib_delete(afi, api.safi, zvrf_id(zvrf), api.type, api.instance, |
bc541126 | 2060 | api.flags, &api.prefix, src_p, NULL, 0, table_id, api.metric, |
0aaa7228 | 2061 | api.distance, false, false); |
bf094f69 QY |
2062 | |
2063 | /* Stats */ | |
2064 | switch (api.prefix.family) { | |
2065 | case AF_INET: | |
2066 | client->v4_route_del_cnt++; | |
2067 | break; | |
2068 | case AF_INET6: | |
2069 | client->v6_route_del_cnt++; | |
2070 | break; | |
2071 | } | |
2072 | } | |
2073 | ||
bf094f69 QY |
2074 | /* MRIB Nexthop lookup for IPv4. */ |
2075 | static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS) | |
2076 | { | |
2077 | struct in_addr addr; | |
2078 | struct route_entry *re; | |
2079 | ||
2080 | STREAM_GET(&addr.s_addr, msg, IPV4_MAX_BYTELEN); | |
2081 | re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
2082 | zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); | |
2083 | ||
2084 | stream_failure: | |
2085 | return; | |
2086 | } | |
2087 | ||
bf094f69 QY |
2088 | /* Register zebra server router-id information. Send current router-id */ |
2089 | static void zread_router_id_add(ZAPI_HANDLER_ARGS) | |
2090 | { | |
98a3fb0a SM |
2091 | afi_t afi; |
2092 | ||
bf094f69 QY |
2093 | struct prefix p; |
2094 | ||
98a3fb0a SM |
2095 | STREAM_GETW(msg, afi); |
2096 | ||
2097 | if (afi <= AFI_UNSPEC || afi >= AFI_MAX) { | |
2098 | zlog_warn( | |
2099 | "Invalid AFI %u while registering for router ID notifications", | |
2100 | afi); | |
2101 | goto stream_failure; | |
2102 | } | |
2103 | ||
bf094f69 | 2104 | /* Router-id information is needed. */ |
98a3fb0a | 2105 | vrf_bitmap_set(client->ridinfo[afi], zvrf_id(zvrf)); |
bf094f69 | 2106 | |
98a3fb0a | 2107 | router_id_get(afi, &p, zvrf); |
bf094f69 | 2108 | |
98a3fb0a SM |
2109 | zsend_router_id_update(client, afi, &p, zvrf_id(zvrf)); |
2110 | ||
2111 | stream_failure: | |
2112 | return; | |
bf094f69 QY |
2113 | } |
2114 | ||
2115 | /* Unregister zebra server router-id information. */ | |
2116 | static void zread_router_id_delete(ZAPI_HANDLER_ARGS) | |
2117 | { | |
98a3fb0a SM |
2118 | afi_t afi; |
2119 | ||
2120 | STREAM_GETW(msg, afi); | |
2121 | ||
2122 | if (afi <= AFI_UNSPEC || afi >= AFI_MAX) { | |
2123 | zlog_warn( | |
2124 | "Invalid AFI %u while unregistering from router ID notifications", | |
2125 | afi); | |
2126 | goto stream_failure; | |
2127 | } | |
2128 | ||
2129 | vrf_bitmap_unset(client->ridinfo[afi], zvrf_id(zvrf)); | |
2130 | ||
2131 | stream_failure: | |
2132 | return; | |
bf094f69 QY |
2133 | } |
2134 | ||
2135 | static void zsend_capabilities(struct zserv *client, struct zebra_vrf *zvrf) | |
2136 | { | |
2137 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2138 | ||
2139 | zclient_create_header(s, ZEBRA_CAPABILITIES, zvrf->vrf->vrf_id); | |
bb6b7f79 | 2140 | stream_putl(s, vrf_get_backend()); |
bf094f69 | 2141 | stream_putc(s, mpls_enabled); |
b3f2b590 | 2142 | stream_putl(s, zrouter.multipath_num); |
02c0866d | 2143 | stream_putc(s, zebra_mlag_get_role()); |
bf094f69 QY |
2144 | |
2145 | stream_putw_at(s, 0, stream_get_endp(s)); | |
21ccc0cf | 2146 | zserv_send_message(client, s); |
bf094f69 QY |
2147 | } |
2148 | ||
b120fe3b DS |
2149 | void zsend_capabilities_all_clients(void) |
2150 | { | |
2151 | struct listnode *node, *nnode; | |
2152 | struct zebra_vrf *zvrf; | |
2153 | struct zserv *client; | |
2154 | ||
2155 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
2156 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { | |
17da84a4 KS |
2157 | /* Do not send unsolicited messages to synchronous clients. */ |
2158 | if (client->synchronous) | |
2159 | continue; | |
2160 | ||
b120fe3b DS |
2161 | zsend_capabilities(client, zvrf); |
2162 | } | |
2163 | } | |
2164 | ||
bf094f69 QY |
2165 | /* Tie up route-type and client->sock */ |
2166 | static void zread_hello(ZAPI_HANDLER_ARGS) | |
2167 | { | |
2168 | /* type of protocol (lib/zebra.h) */ | |
2169 | uint8_t proto; | |
2170 | unsigned short instance; | |
2171 | uint8_t notify; | |
17da84a4 | 2172 | uint8_t synchronous; |
4e0b5b31 | 2173 | uint32_t session_id; |
bf094f69 QY |
2174 | |
2175 | STREAM_GETC(msg, proto); | |
2176 | STREAM_GETW(msg, instance); | |
4e0b5b31 | 2177 | STREAM_GETL(msg, session_id); |
bf094f69 | 2178 | STREAM_GETC(msg, notify); |
17da84a4 | 2179 | STREAM_GETC(msg, synchronous); |
bf094f69 QY |
2180 | if (notify) |
2181 | client->notify_owner = true; | |
2182 | ||
17da84a4 KS |
2183 | if (synchronous) |
2184 | client->synchronous = true; | |
2185 | ||
bf094f69 | 2186 | /* accept only dynamic routing protocols */ |
f23cbcda | 2187 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_CONNECT)) { |
bf094f69 QY |
2188 | zlog_notice( |
2189 | "client %d says hello and bids fair to announce only %s routes vrf=%u", | |
2190 | client->sock, zebra_route_string(proto), | |
2191 | zvrf->vrf->vrf_id); | |
2192 | if (instance) | |
2193 | zlog_notice("client protocol instance %d", instance); | |
2194 | ||
2195 | client->proto = proto; | |
2196 | client->instance = instance; | |
4e0b5b31 | 2197 | client->session_id = session_id; |
6f4aee61 S |
2198 | |
2199 | /* Graceful restart processing for client connect */ | |
2200 | zebra_gr_client_reconnect(client); | |
bf094f69 QY |
2201 | } |
2202 | ||
17da84a4 KS |
2203 | if (!client->synchronous) { |
2204 | zsend_capabilities(client, zvrf); | |
2205 | zebra_vrf_update_all(client); | |
2206 | } | |
bf094f69 QY |
2207 | stream_failure: |
2208 | return; | |
2209 | } | |
2210 | ||
2211 | /* Unregister all information in a VRF. */ | |
2212 | static void zread_vrf_unregister(ZAPI_HANDLER_ARGS) | |
2213 | { | |
2214 | int i; | |
2215 | afi_t afi; | |
2216 | ||
49db7a7b | 2217 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
bf094f69 QY |
2218 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
2219 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
49db7a7b | 2220 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); |
98a3fb0a | 2221 | vrf_bitmap_unset(client->ridinfo[afi], zvrf_id(zvrf)); |
49db7a7b | 2222 | } |
bf094f69 QY |
2223 | } |
2224 | ||
ff8d3c2d MS |
2225 | /* |
2226 | * Validate incoming zapi mpls lsp / labels message | |
2227 | */ | |
2228 | static int zapi_labels_validate(const struct zapi_labels *zl) | |
2229 | { | |
2230 | int ret = -1; | |
2231 | int i, j, idx; | |
2232 | uint32_t bits[8]; | |
2233 | uint32_t ival; | |
2234 | const struct zapi_nexthop *znh; | |
2235 | ||
2236 | /* Validate backup info: no duplicates for a single primary */ | |
2237 | if (zl->backup_nexthop_num == 0) { | |
2238 | ret = 0; | |
2239 | goto done; | |
2240 | } | |
2241 | ||
2242 | for (j = 0; j < zl->nexthop_num; j++) { | |
2243 | znh = &zl->nexthops[j]; | |
2244 | ||
2245 | memset(bits, 0, sizeof(bits)); | |
2246 | ||
2247 | for (i = 0; i < znh->backup_num; i++) { | |
2248 | idx = znh->backup_idx[i] / 32; | |
2249 | ||
2250 | ival = 1 << znh->backup_idx[i] % 32; | |
2251 | ||
2252 | /* Check whether value is already used */ | |
2253 | if (ival & bits[idx]) { | |
2254 | /* Fail */ | |
2255 | ||
2256 | if (IS_ZEBRA_DEBUG_RECV) | |
2257 | zlog_debug("%s: invalid zapi mpls message: duplicate backup nexthop index %d", | |
2258 | __func__, | |
2259 | znh->backup_idx[i]); | |
2260 | goto done; | |
2261 | } | |
2262 | ||
2263 | /* Mark index value */ | |
2264 | bits[idx] |= ival; | |
2265 | } | |
2266 | } | |
2267 | ||
2268 | ret = 0; | |
2269 | ||
2270 | done: | |
2271 | ||
2272 | return ret; | |
2273 | } | |
2274 | ||
ea6b290b RW |
2275 | /* |
2276 | * Handle request to create an MPLS LSP. | |
2277 | * | |
2278 | * A single message can fully specify an LSP with multiple nexthops. | |
2279 | * | |
2280 | * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is | |
2281 | * updated to use the received label(s). | |
2282 | */ | |
2283 | static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS) | |
bf094f69 QY |
2284 | { |
2285 | struct stream *s; | |
bad6b0e7 | 2286 | struct zapi_labels zl; |
f2e7f4eb | 2287 | int ret; |
bf094f69 QY |
2288 | |
2289 | /* Get input stream. */ | |
2290 | s = msg; | |
bad6b0e7 RW |
2291 | if (zapi_labels_decode(s, &zl) < 0) { |
2292 | if (IS_ZEBRA_DEBUG_RECV) | |
2293 | zlog_debug("%s: Unable to decode zapi_labels sent", | |
15569c58 | 2294 | __func__); |
bf094f69 QY |
2295 | return; |
2296 | } | |
bf094f69 | 2297 | |
bf094f69 QY |
2298 | if (!mpls_enabled) |
2299 | return; | |
2300 | ||
ff8d3c2d MS |
2301 | /* Validate; will debug on failure */ |
2302 | if (zapi_labels_validate(&zl) < 0) | |
2303 | return; | |
2304 | ||
f2e7f4eb MS |
2305 | ret = mpls_zapi_labels_process(true, zvrf, &zl); |
2306 | if (ret < 0) { | |
2307 | if (IS_ZEBRA_DEBUG_RECV) | |
2308 | zlog_debug("%s: Error processing zapi request", | |
2309 | __func__); | |
ea6b290b RW |
2310 | } |
2311 | } | |
2312 | ||
2313 | /* | |
2314 | * Handle request to delete an MPLS LSP. | |
2315 | * | |
2316 | * An LSP is identified by its type and local label. When the received message | |
2317 | * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the | |
2318 | * listed LSP nexthops (aka NHLFEs) are deleted. | |
2319 | * | |
2320 | * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified | |
2321 | * FEC (route) nexthops are deleted. | |
2322 | */ | |
2323 | static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS) | |
2324 | { | |
2325 | struct stream *s; | |
2326 | struct zapi_labels zl; | |
f2e7f4eb | 2327 | int ret; |
ea6b290b RW |
2328 | |
2329 | /* Get input stream. */ | |
2330 | s = msg; | |
2331 | if (zapi_labels_decode(s, &zl) < 0) { | |
2332 | if (IS_ZEBRA_DEBUG_RECV) | |
2333 | zlog_debug("%s: Unable to decode zapi_labels sent", | |
15569c58 | 2334 | __func__); |
ea6b290b RW |
2335 | return; |
2336 | } | |
2337 | ||
2338 | if (!mpls_enabled) | |
2339 | return; | |
2340 | ||
2341 | if (zl.nexthop_num > 0) { | |
f2e7f4eb MS |
2342 | ret = mpls_zapi_labels_process(false /*delete*/, zvrf, &zl); |
2343 | if (ret < 0) { | |
2344 | if (IS_ZEBRA_DEBUG_RECV) | |
2345 | zlog_debug("%s: Error processing zapi request", | |
2346 | __func__); | |
ea6b290b RW |
2347 | } |
2348 | } else { | |
2349 | mpls_lsp_uninstall_all_vrf(zvrf, zl.type, zl.local_label); | |
2350 | ||
b3c49d0e | 2351 | if (CHECK_FLAG(zl.message, ZAPI_LABELS_FTN)) |
ea6b290b RW |
2352 | mpls_ftn_uninstall(zvrf, zl.type, &zl.route.prefix, |
2353 | zl.route.type, zl.route.instance); | |
2354 | } | |
2355 | } | |
2356 | ||
2357 | /* | |
2358 | * Handle request to add an MPLS LSP or change an existing one. | |
2359 | * | |
2360 | * A single message can fully specify an LSP with multiple nexthops. | |
2361 | * | |
2362 | * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is | |
2363 | * updated to use the received label(s). | |
2364 | * | |
2365 | * NOTE: zebra will use route replace semantics (make-before-break) to update | |
2366 | * the LSP in the forwarding plane if that's supported by the underlying | |
2367 | * platform. | |
2368 | */ | |
2369 | static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS) | |
2370 | { | |
2371 | struct stream *s; | |
2372 | struct zapi_labels zl; | |
2373 | ||
2374 | /* Get input stream. */ | |
2375 | s = msg; | |
2376 | if (zapi_labels_decode(s, &zl) < 0) { | |
2377 | if (IS_ZEBRA_DEBUG_RECV) | |
2378 | zlog_debug("%s: Unable to decode zapi_labels sent", | |
15569c58 | 2379 | __func__); |
ea6b290b RW |
2380 | return; |
2381 | } | |
2382 | ||
2383 | if (!mpls_enabled) | |
2384 | return; | |
2385 | ||
ff8d3c2d MS |
2386 | /* Validate; will debug on failure */ |
2387 | if (zapi_labels_validate(&zl) < 0) | |
2388 | return; | |
2389 | ||
f2e7f4eb MS |
2390 | /* This removes everything, then re-adds from the client's |
2391 | * zapi message. Since the LSP will be processed later, on this | |
2392 | * this same pthread, all of the changes will 'appear' at once. | |
2393 | */ | |
ea6b290b RW |
2394 | mpls_lsp_uninstall_all_vrf(zvrf, zl.type, zl.local_label); |
2395 | if (CHECK_FLAG(zl.message, ZAPI_LABELS_FTN)) | |
2396 | mpls_ftn_uninstall(zvrf, zl.type, &zl.route.prefix, | |
2397 | zl.route.type, zl.route.instance); | |
2398 | ||
f2e7f4eb | 2399 | mpls_zapi_labels_process(true, zvrf, &zl); |
bf094f69 QY |
2400 | } |
2401 | ||
31f937fb SM |
2402 | static void zread_sr_policy_set(ZAPI_HANDLER_ARGS) |
2403 | { | |
2404 | struct stream *s; | |
2405 | struct zapi_sr_policy zp; | |
2406 | struct zapi_srte_tunnel *zt; | |
2407 | struct zebra_sr_policy *policy; | |
2408 | ||
2409 | /* Get input stream. */ | |
2410 | s = msg; | |
2411 | if (zapi_sr_policy_decode(s, &zp) < 0) { | |
2412 | if (IS_ZEBRA_DEBUG_RECV) | |
2413 | zlog_debug("%s: Unable to decode zapi_sr_policy sent", | |
2414 | __PRETTY_FUNCTION__); | |
2415 | return; | |
2416 | } | |
2417 | zt = &zp.segment_list; | |
2418 | if (zt->label_num < 1) { | |
2419 | if (IS_ZEBRA_DEBUG_RECV) | |
2420 | zlog_debug( | |
2421 | "%s: SR-TE tunnel must contain at least one label", | |
2422 | __PRETTY_FUNCTION__); | |
2423 | return; | |
2424 | } | |
2425 | ||
2426 | if (!mpls_enabled) | |
2427 | return; | |
2428 | ||
2429 | policy = zebra_sr_policy_find(zp.color, &zp.endpoint); | |
2430 | if (!policy) | |
2431 | policy = zebra_sr_policy_add(zp.color, &zp.endpoint, zp.name); | |
2432 | /* TODO: per-VRF list of SR-TE policies. */ | |
2433 | policy->zvrf = zvrf; | |
2434 | ||
2435 | zebra_sr_policy_validate(policy, &zp.segment_list); | |
2436 | } | |
2437 | ||
2438 | static void zread_sr_policy_delete(ZAPI_HANDLER_ARGS) | |
2439 | { | |
2440 | struct stream *s; | |
2441 | struct zapi_sr_policy zp; | |
2442 | struct zebra_sr_policy *policy; | |
2443 | ||
2444 | /* Get input stream. */ | |
2445 | s = msg; | |
2446 | if (zapi_sr_policy_decode(s, &zp) < 0) { | |
2447 | if (IS_ZEBRA_DEBUG_RECV) | |
2448 | zlog_debug("%s: Unable to decode zapi_sr_policy sent", | |
2449 | __PRETTY_FUNCTION__); | |
2450 | return; | |
2451 | } | |
2452 | ||
2453 | if (!mpls_enabled) | |
2454 | return; | |
2455 | ||
2456 | policy = zebra_sr_policy_find(zp.color, &zp.endpoint); | |
2457 | if (!policy) { | |
2458 | if (IS_ZEBRA_DEBUG_RECV) | |
2459 | zlog_debug("%s: Unable to find SR-TE policy", | |
2460 | __PRETTY_FUNCTION__); | |
2461 | return; | |
2462 | } | |
2463 | ||
2464 | zebra_sr_policy_del(policy); | |
2465 | } | |
2466 | ||
2467 | int zsend_sr_policy_notify_status(uint32_t color, struct ipaddr *endpoint, | |
2468 | char *name, int status) | |
2469 | { | |
2470 | struct zserv *client; | |
2471 | struct stream *s; | |
2472 | ||
2473 | client = zserv_find_client(ZEBRA_ROUTE_SRTE, 0); | |
2474 | if (!client) { | |
2475 | if (IS_ZEBRA_DEBUG_PACKET) | |
2476 | zlog_debug( | |
2477 | "Not notifying pathd about policy %s" | |
2478 | " status change to %d", | |
2479 | name, status); | |
2480 | return 0; | |
2481 | } | |
2482 | ||
2483 | if (IS_ZEBRA_DEBUG_PACKET) | |
2484 | zlog_debug( | |
2485 | "Notifying pathd about policy %s status change" | |
2486 | " to %d", | |
2487 | name, status); | |
2488 | ||
2489 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2490 | stream_reset(s); | |
2491 | ||
2492 | zclient_create_header(s, ZEBRA_SR_POLICY_NOTIFY_STATUS, VRF_DEFAULT); | |
2493 | stream_putl(s, color); | |
2494 | stream_put_ipaddr(s, endpoint); | |
2495 | stream_write(s, name, SRTE_POLICY_NAME_MAX_LENGTH); | |
2496 | stream_putl(s, status); | |
2497 | ||
2498 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2499 | ||
2500 | return zserv_send_message(client, s); | |
2501 | } | |
2502 | ||
bf094f69 QY |
2503 | /* Send response to a table manager connect request to client */ |
2504 | static void zread_table_manager_connect(struct zserv *client, | |
2505 | struct stream *msg, vrf_id_t vrf_id) | |
2506 | { | |
2507 | struct stream *s; | |
2508 | uint8_t proto; | |
2509 | uint16_t instance; | |
c479e756 | 2510 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); |
bf094f69 QY |
2511 | |
2512 | s = msg; | |
2513 | ||
2514 | /* Get data. */ | |
2515 | STREAM_GETC(s, proto); | |
2516 | STREAM_GETW(s, instance); | |
2517 | ||
2518 | /* accept only dynamic routing protocols */ | |
2519 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 2520 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
2521 | "client %d has wrong protocol %s", client->sock, |
2522 | zebra_route_string(proto)); | |
bf094f69 QY |
2523 | zsend_table_manager_connect_response(client, vrf_id, 1); |
2524 | return; | |
2525 | } | |
c479e756 DS |
2526 | zlog_notice("client %d with vrf %s(%u) instance %u connected as %s", |
2527 | client->sock, VRF_LOGNAME(vrf), vrf_id, instance, | |
2528 | zebra_route_string(proto)); | |
bf094f69 QY |
2529 | client->proto = proto; |
2530 | client->instance = instance; | |
2531 | ||
2532 | /* | |
2533 | * Release previous labels of same protocol and instance. | |
2534 | * This is done in case it restarted from an unexpected shutdown. | |
2535 | */ | |
453844ab | 2536 | release_daemon_table_chunks(client); |
bf094f69 QY |
2537 | |
2538 | zsend_table_manager_connect_response(client, vrf_id, 0); | |
2539 | ||
2540 | stream_failure: | |
2541 | return; | |
2542 | } | |
2543 | ||
2544 | static void zread_label_manager_connect(struct zserv *client, | |
2545 | struct stream *msg, vrf_id_t vrf_id) | |
2546 | { | |
2547 | struct stream *s; | |
2548 | /* type of protocol (lib/zebra.h) */ | |
2549 | uint8_t proto; | |
2550 | unsigned short instance; | |
2551 | ||
2552 | /* Get input stream. */ | |
2553 | s = msg; | |
2554 | ||
2555 | /* Get data. */ | |
2556 | STREAM_GETC(s, proto); | |
2557 | STREAM_GETW(s, instance); | |
2558 | ||
2559 | /* accept only dynamic routing protocols */ | |
2560 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 2561 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
2562 | "client %d has wrong protocol %s", client->sock, |
2563 | zebra_route_string(proto)); | |
e11d7c96 | 2564 | zsend_label_manager_connect_response(client, vrf_id, 1); |
bf094f69 QY |
2565 | return; |
2566 | } | |
e11d7c96 EDP |
2567 | |
2568 | /* recall proto and instance in this socket */ | |
bf094f69 QY |
2569 | client->proto = proto; |
2570 | client->instance = instance; | |
2571 | ||
e11d7c96 | 2572 | /* call hook for connection using wrapper */ |
4cebdb9b | 2573 | lm_client_connect_call(client, vrf_id); |
bf094f69 QY |
2574 | |
2575 | stream_failure: | |
2576 | return; | |
2577 | } | |
2578 | ||
2579 | static void zread_get_label_chunk(struct zserv *client, struct stream *msg, | |
2580 | vrf_id_t vrf_id) | |
2581 | { | |
2582 | struct stream *s; | |
2583 | uint8_t keep; | |
0e3b6a92 | 2584 | uint32_t size, base; |
e11d7c96 | 2585 | struct label_manager_chunk *lmc = NULL; |
5dffb0e9 FR |
2586 | uint8_t proto; |
2587 | unsigned short instance; | |
bf094f69 QY |
2588 | |
2589 | /* Get input stream. */ | |
2590 | s = msg; | |
2591 | ||
2592 | /* Get data. */ | |
5dffb0e9 FR |
2593 | STREAM_GETC(s, proto); |
2594 | STREAM_GETW(s, instance); | |
bf094f69 QY |
2595 | STREAM_GETC(s, keep); |
2596 | STREAM_GETL(s, size); | |
0e3b6a92 | 2597 | STREAM_GETL(s, base); |
bf094f69 | 2598 | |
4cebdb9b MS |
2599 | assert(proto == client->proto && instance == client->instance); |
2600 | ||
e11d7c96 | 2601 | /* call hook to get a chunk using wrapper */ |
4cebdb9b | 2602 | lm_get_chunk_call(&lmc, client, keep, size, base, vrf_id); |
bf094f69 | 2603 | |
bf094f69 QY |
2604 | stream_failure: |
2605 | return; | |
2606 | } | |
2607 | ||
2608 | static void zread_release_label_chunk(struct zserv *client, struct stream *msg) | |
2609 | { | |
2610 | struct stream *s; | |
2611 | uint32_t start, end; | |
5dffb0e9 FR |
2612 | uint8_t proto; |
2613 | unsigned short instance; | |
bf094f69 QY |
2614 | |
2615 | /* Get input stream. */ | |
2616 | s = msg; | |
2617 | ||
2618 | /* Get data. */ | |
5dffb0e9 FR |
2619 | STREAM_GETC(s, proto); |
2620 | STREAM_GETW(s, instance); | |
bf094f69 QY |
2621 | STREAM_GETL(s, start); |
2622 | STREAM_GETL(s, end); | |
2623 | ||
4cebdb9b MS |
2624 | assert(proto == client->proto && instance == client->instance); |
2625 | ||
e11d7c96 | 2626 | /* call hook to release a chunk using wrapper */ |
4cebdb9b | 2627 | lm_release_chunk_call(client, start, end); |
bf094f69 QY |
2628 | |
2629 | stream_failure: | |
2630 | return; | |
2631 | } | |
e11d7c96 | 2632 | |
bf094f69 QY |
2633 | static void zread_label_manager_request(ZAPI_HANDLER_ARGS) |
2634 | { | |
e11d7c96 EDP |
2635 | if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT |
2636 | || hdr->command == ZEBRA_LABEL_MANAGER_CONNECT_ASYNC) | |
2637 | zread_label_manager_connect(client, msg, zvrf_id(zvrf)); | |
bf094f69 | 2638 | else { |
e11d7c96 EDP |
2639 | if (hdr->command == ZEBRA_GET_LABEL_CHUNK) |
2640 | zread_get_label_chunk(client, msg, zvrf_id(zvrf)); | |
2641 | else if (hdr->command == ZEBRA_RELEASE_LABEL_CHUNK) | |
2642 | zread_release_label_chunk(client, msg); | |
bf094f69 QY |
2643 | } |
2644 | } | |
2645 | ||
2646 | static void zread_get_table_chunk(struct zserv *client, struct stream *msg, | |
2647 | vrf_id_t vrf_id) | |
2648 | { | |
2649 | struct stream *s; | |
2650 | uint32_t size; | |
2651 | struct table_manager_chunk *tmc; | |
2652 | ||
2653 | /* Get input stream. */ | |
2654 | s = msg; | |
2655 | ||
2656 | /* Get data. */ | |
2657 | STREAM_GETL(s, size); | |
2658 | ||
2659 | tmc = assign_table_chunk(client->proto, client->instance, size); | |
2660 | if (!tmc) | |
e914ccbe | 2661 | flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK, |
1c50c1c0 QY |
2662 | "%s: Unable to assign Table Chunk of size %u", |
2663 | __func__, size); | |
bf094f69 QY |
2664 | else |
2665 | zlog_debug("Assigned Table Chunk %u - %u", tmc->start, | |
2666 | tmc->end); | |
2667 | /* send response back */ | |
2668 | zsend_assign_table_chunk_response(client, vrf_id, tmc); | |
2669 | ||
2670 | stream_failure: | |
2671 | return; | |
2672 | } | |
2673 | ||
2674 | static void zread_release_table_chunk(struct zserv *client, struct stream *msg) | |
2675 | { | |
2676 | struct stream *s; | |
2677 | uint32_t start, end; | |
2678 | ||
2679 | /* Get input stream. */ | |
2680 | s = msg; | |
2681 | ||
2682 | /* Get data. */ | |
2683 | STREAM_GETL(s, start); | |
2684 | STREAM_GETL(s, end); | |
2685 | ||
2686 | release_table_chunk(client->proto, client->instance, start, end); | |
2687 | ||
2688 | stream_failure: | |
2689 | return; | |
2690 | } | |
2691 | ||
2692 | static void zread_table_manager_request(ZAPI_HANDLER_ARGS) | |
2693 | { | |
2694 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
2695 | if (hdr->command == ZEBRA_TABLE_MANAGER_CONNECT) | |
2696 | zread_table_manager_connect(client, msg, zvrf_id(zvrf)); | |
2697 | else { | |
2698 | /* Sanity: don't allow 'unidentified' requests */ | |
2699 | if (!client->proto) { | |
af4c2728 | 2700 | flog_err( |
e914ccbe | 2701 | EC_ZEBRA_TM_ALIENS, |
bf094f69 QY |
2702 | "Got table request from an unidentified client"); |
2703 | return; | |
2704 | } | |
2705 | if (hdr->command == ZEBRA_GET_TABLE_CHUNK) | |
2706 | zread_get_table_chunk(client, msg, zvrf_id(zvrf)); | |
2707 | else if (hdr->command == ZEBRA_RELEASE_TABLE_CHUNK) | |
2708 | zread_release_table_chunk(client, msg); | |
2709 | } | |
2710 | } | |
2711 | ||
2712 | static void zread_pseudowire(ZAPI_HANDLER_ARGS) | |
2713 | { | |
2714 | struct stream *s; | |
2715 | char ifname[IF_NAMESIZE]; | |
2716 | ifindex_t ifindex; | |
2717 | int type; | |
2718 | int af; | |
2719 | union g_addr nexthop; | |
2720 | uint32_t local_label; | |
2721 | uint32_t remote_label; | |
2722 | uint8_t flags; | |
2723 | union pw_protocol_fields data; | |
2724 | uint8_t protocol; | |
2725 | struct zebra_pw *pw; | |
2726 | ||
2727 | /* Get input stream. */ | |
2728 | s = msg; | |
2729 | ||
2730 | /* Get data. */ | |
2731 | STREAM_GET(ifname, s, IF_NAMESIZE); | |
f223b3d1 | 2732 | ifname[IF_NAMESIZE - 1] = '\0'; |
bf094f69 QY |
2733 | STREAM_GETL(s, ifindex); |
2734 | STREAM_GETL(s, type); | |
2735 | STREAM_GETL(s, af); | |
2736 | switch (af) { | |
2737 | case AF_INET: | |
2738 | STREAM_GET(&nexthop.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
2739 | break; | |
2740 | case AF_INET6: | |
2741 | STREAM_GET(&nexthop.ipv6, s, 16); | |
2742 | break; | |
2743 | default: | |
2744 | return; | |
2745 | } | |
2746 | STREAM_GETL(s, local_label); | |
2747 | STREAM_GETL(s, remote_label); | |
2748 | STREAM_GETC(s, flags); | |
2749 | STREAM_GET(&data, s, sizeof(data)); | |
2750 | protocol = client->proto; | |
2751 | ||
2752 | pw = zebra_pw_find(zvrf, ifname); | |
2753 | switch (hdr->command) { | |
2754 | case ZEBRA_PW_ADD: | |
2755 | if (pw) { | |
e914ccbe | 2756 | flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS, |
9df414fe | 2757 | "%s: pseudowire %s already exists [%s]", |
bf094f69 QY |
2758 | __func__, ifname, |
2759 | zserv_command_string(hdr->command)); | |
2760 | return; | |
2761 | } | |
2762 | ||
2763 | zebra_pw_add(zvrf, ifname, protocol, client); | |
2764 | break; | |
2765 | case ZEBRA_PW_DELETE: | |
2766 | if (!pw) { | |
e914ccbe | 2767 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2768 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2769 | ifname, zserv_command_string(hdr->command)); |
2770 | return; | |
2771 | } | |
2772 | ||
2773 | zebra_pw_del(zvrf, pw); | |
2774 | break; | |
2775 | case ZEBRA_PW_SET: | |
2776 | case ZEBRA_PW_UNSET: | |
2777 | if (!pw) { | |
e914ccbe | 2778 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2779 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2780 | ifname, zserv_command_string(hdr->command)); |
2781 | return; | |
2782 | } | |
2783 | ||
2784 | switch (hdr->command) { | |
2785 | case ZEBRA_PW_SET: | |
2786 | pw->enabled = 1; | |
2787 | break; | |
2788 | case ZEBRA_PW_UNSET: | |
2789 | pw->enabled = 0; | |
2790 | break; | |
2791 | } | |
2792 | ||
2793 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
2794 | remote_label, flags, &data); | |
2795 | break; | |
2796 | } | |
2797 | ||
2798 | stream_failure: | |
2799 | return; | |
2800 | } | |
2801 | ||
2802 | static void zread_interface_set_master(ZAPI_HANDLER_ARGS) | |
2803 | { | |
2804 | struct interface *master; | |
2805 | struct interface *slave; | |
2806 | struct stream *s = msg; | |
2807 | int ifindex; | |
2808 | vrf_id_t vrf_id; | |
2809 | ||
2810 | STREAM_GETL(s, vrf_id); | |
2811 | STREAM_GETL(s, ifindex); | |
2812 | master = if_lookup_by_index(ifindex, vrf_id); | |
2813 | ||
2814 | STREAM_GETL(s, vrf_id); | |
2815 | STREAM_GETL(s, ifindex); | |
2816 | slave = if_lookup_by_index(ifindex, vrf_id); | |
2817 | ||
2818 | if (!master || !slave) | |
2819 | return; | |
2820 | ||
2821 | kernel_interface_set_master(master, slave); | |
2822 | ||
2823 | stream_failure: | |
2824 | return; | |
2825 | } | |
2826 | ||
2827 | ||
2828 | static void zread_vrf_label(ZAPI_HANDLER_ARGS) | |
2829 | { | |
2830 | struct interface *ifp; | |
2831 | mpls_label_t nlabel; | |
2832 | afi_t afi; | |
2833 | struct stream *s; | |
2834 | struct zebra_vrf *def_zvrf; | |
2835 | enum lsp_types_t ltype; | |
2836 | ||
2837 | s = msg; | |
2838 | STREAM_GETL(s, nlabel); | |
2839 | STREAM_GETC(s, afi); | |
663d3a91 QY |
2840 | |
2841 | if (!(IS_VALID_AFI(afi))) { | |
2842 | zlog_warn("Invalid AFI for VRF label: %u", afi); | |
2843 | return; | |
2844 | } | |
2845 | ||
bf094f69 QY |
2846 | if (nlabel == zvrf->label[afi]) { |
2847 | /* | |
2848 | * Nothing to do here move along | |
2849 | */ | |
2850 | return; | |
2851 | } | |
2852 | ||
2853 | STREAM_GETC(s, ltype); | |
2854 | ||
2855 | if (zvrf->vrf->vrf_id != VRF_DEFAULT) | |
a36898e7 | 2856 | ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id); |
bf094f69 | 2857 | else |
a36898e7 | 2858 | ifp = if_lookup_by_name("lo", VRF_DEFAULT); |
bf094f69 QY |
2859 | |
2860 | if (!ifp) { | |
2861 | zlog_debug("Unable to find specified Interface for %s", | |
2862 | zvrf->vrf->name); | |
2863 | return; | |
2864 | } | |
2865 | ||
2866 | def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT); | |
2867 | ||
2868 | if (zvrf->label[afi] != MPLS_LABEL_NONE) { | |
2869 | afi_t scrubber; | |
2870 | bool really_remove; | |
2871 | ||
2872 | really_remove = true; | |
2873 | for (scrubber = AFI_IP; scrubber < AFI_MAX; scrubber++) { | |
2874 | if (scrubber == afi) | |
2875 | continue; | |
2876 | ||
2877 | if (zvrf->label[scrubber] == MPLS_LABEL_NONE) | |
2878 | continue; | |
2879 | ||
2880 | if (zvrf->label[afi] == zvrf->label[scrubber]) { | |
2881 | really_remove = false; | |
2882 | break; | |
2883 | } | |
2884 | } | |
2885 | ||
2886 | if (really_remove) | |
2887 | mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label[afi], | |
2888 | NEXTHOP_TYPE_IFINDEX, NULL, | |
cc1b9746 | 2889 | ifp->ifindex, false /*backup*/); |
bf094f69 QY |
2890 | } |
2891 | ||
5065db0a RW |
2892 | if (nlabel != MPLS_LABEL_NONE) { |
2893 | mpls_label_t out_label = MPLS_LABEL_IMPLICIT_NULL; | |
2894 | mpls_lsp_install(def_zvrf, ltype, nlabel, 1, &out_label, | |
2895 | NEXTHOP_TYPE_IFINDEX, NULL, ifp->ifindex); | |
2896 | } | |
bf094f69 QY |
2897 | |
2898 | zvrf->label[afi] = nlabel; | |
2899 | stream_failure: | |
2900 | return; | |
2901 | } | |
2902 | ||
2903 | static inline void zread_rule(ZAPI_HANDLER_ARGS) | |
2904 | { | |
2905 | struct zebra_pbr_rule zpr; | |
2906 | struct stream *s; | |
2907 | uint32_t total, i; | |
58a1d249 | 2908 | char ifname[INTERFACE_NAMSIZ + 1] = {}; |
bf094f69 QY |
2909 | |
2910 | s = msg; | |
2911 | STREAM_GETL(s, total); | |
2912 | ||
2913 | for (i = 0; i < total; i++) { | |
2914 | memset(&zpr, 0, sizeof(zpr)); | |
2915 | ||
2916 | zpr.sock = client->sock; | |
2917 | zpr.rule.vrf_id = hdr->vrf_id; | |
2918 | STREAM_GETL(s, zpr.rule.seq); | |
2919 | STREAM_GETL(s, zpr.rule.priority); | |
2920 | STREAM_GETL(s, zpr.rule.unique); | |
2921 | STREAM_GETC(s, zpr.rule.filter.src_ip.family); | |
2922 | STREAM_GETC(s, zpr.rule.filter.src_ip.prefixlen); | |
2923 | STREAM_GET(&zpr.rule.filter.src_ip.u.prefix, s, | |
2924 | prefix_blen(&zpr.rule.filter.src_ip)); | |
2925 | STREAM_GETW(s, zpr.rule.filter.src_port); | |
2926 | STREAM_GETC(s, zpr.rule.filter.dst_ip.family); | |
2927 | STREAM_GETC(s, zpr.rule.filter.dst_ip.prefixlen); | |
2928 | STREAM_GET(&zpr.rule.filter.dst_ip.u.prefix, s, | |
2929 | prefix_blen(&zpr.rule.filter.dst_ip)); | |
2930 | STREAM_GETW(s, zpr.rule.filter.dst_port); | |
01f23aff | 2931 | STREAM_GETC(s, zpr.rule.filter.dsfield); |
bf094f69 QY |
2932 | STREAM_GETL(s, zpr.rule.filter.fwmark); |
2933 | STREAM_GETL(s, zpr.rule.action.table); | |
58a1d249 | 2934 | STREAM_GET(ifname, s, INTERFACE_NAMSIZ); |
bf094f69 | 2935 | |
58a1d249 DS |
2936 | strlcpy(zpr.ifname, ifname, sizeof(zpr.ifname)); |
2937 | strlcpy(zpr.rule.ifname, ifname, sizeof(zpr.rule.ifname)); | |
bf094f69 QY |
2938 | |
2939 | if (!is_default_prefix(&zpr.rule.filter.src_ip)) | |
2940 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_IP; | |
2941 | ||
2942 | if (!is_default_prefix(&zpr.rule.filter.dst_ip)) | |
2943 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_IP; | |
2944 | ||
2945 | if (zpr.rule.filter.src_port) | |
2946 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_PORT; | |
2947 | ||
2948 | if (zpr.rule.filter.dst_port) | |
2949 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_PORT; | |
2950 | ||
01f23aff WC |
2951 | if (zpr.rule.filter.dsfield) |
2952 | zpr.rule.filter.filter_bm |= PBR_FILTER_DSFIELD; | |
2953 | ||
bf094f69 QY |
2954 | if (zpr.rule.filter.fwmark) |
2955 | zpr.rule.filter.filter_bm |= PBR_FILTER_FWMARK; | |
2956 | ||
4719fd76 QY |
2957 | if (!(zpr.rule.filter.src_ip.family == AF_INET |
2958 | || zpr.rule.filter.src_ip.family == AF_INET6)) { | |
cc815be7 | 2959 | zlog_warn( |
6cde4b45 | 2960 | "Unsupported PBR source IP family: %s (%hhu)", |
cc815be7 QY |
2961 | family2str(zpr.rule.filter.src_ip.family), |
2962 | zpr.rule.filter.src_ip.family); | |
4719fd76 QY |
2963 | return; |
2964 | } | |
2965 | if (!(zpr.rule.filter.dst_ip.family == AF_INET | |
2966 | || zpr.rule.filter.dst_ip.family == AF_INET6)) { | |
cec72d49 | 2967 | zlog_warn( |
6cde4b45 | 2968 | "Unsupported PBR destination IP family: %s (%hhu)", |
cec72d49 DA |
2969 | family2str(zpr.rule.filter.dst_ip.family), |
2970 | zpr.rule.filter.dst_ip.family); | |
4719fd76 QY |
2971 | return; |
2972 | } | |
2973 | ||
2974 | ||
7f0ea8a4 | 2975 | zpr.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 | 2976 | if (hdr->command == ZEBRA_RULE_ADD) |
7f0ea8a4 | 2977 | zebra_pbr_add_rule(&zpr); |
bf094f69 | 2978 | else |
7f0ea8a4 | 2979 | zebra_pbr_del_rule(&zpr); |
bf094f69 QY |
2980 | } |
2981 | ||
2982 | stream_failure: | |
2983 | return; | |
2984 | } | |
2985 | ||
2986 | static inline void zread_ipset(ZAPI_HANDLER_ARGS) | |
2987 | { | |
2988 | struct zebra_pbr_ipset zpi; | |
2989 | struct stream *s; | |
2990 | uint32_t total, i; | |
2991 | ||
2992 | s = msg; | |
2993 | STREAM_GETL(s, total); | |
2994 | ||
2995 | for (i = 0; i < total; i++) { | |
2996 | memset(&zpi, 0, sizeof(zpi)); | |
2997 | ||
2998 | zpi.sock = client->sock; | |
be2028d1 | 2999 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
3000 | STREAM_GETL(s, zpi.unique); |
3001 | STREAM_GETL(s, zpi.type); | |
a60b7031 | 3002 | STREAM_GETC(s, zpi.family); |
bf094f69 QY |
3003 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); |
3004 | ||
3005 | if (hdr->command == ZEBRA_IPSET_CREATE) | |
62f20a52 | 3006 | zebra_pbr_create_ipset(&zpi); |
bf094f69 | 3007 | else |
62f20a52 | 3008 | zebra_pbr_destroy_ipset(&zpi); |
bf094f69 QY |
3009 | } |
3010 | ||
3011 | stream_failure: | |
3012 | return; | |
3013 | } | |
3014 | ||
3015 | static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS) | |
3016 | { | |
3017 | struct zebra_pbr_ipset_entry zpi; | |
3018 | struct zebra_pbr_ipset ipset; | |
3019 | struct stream *s; | |
3020 | uint32_t total, i; | |
3021 | ||
3022 | s = msg; | |
3023 | STREAM_GETL(s, total); | |
3024 | ||
3025 | for (i = 0; i < total; i++) { | |
3026 | memset(&zpi, 0, sizeof(zpi)); | |
3027 | memset(&ipset, 0, sizeof(ipset)); | |
3028 | ||
3029 | zpi.sock = client->sock; | |
3030 | STREAM_GETL(s, zpi.unique); | |
3031 | STREAM_GET(&ipset.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
261462c3 | 3032 | ipset.ipset_name[ZEBRA_IPSET_NAME_SIZE - 1] = '\0'; |
bf094f69 QY |
3033 | STREAM_GETC(s, zpi.src.family); |
3034 | STREAM_GETC(s, zpi.src.prefixlen); | |
3035 | STREAM_GET(&zpi.src.u.prefix, s, prefix_blen(&zpi.src)); | |
3036 | STREAM_GETC(s, zpi.dst.family); | |
3037 | STREAM_GETC(s, zpi.dst.prefixlen); | |
3038 | STREAM_GET(&zpi.dst.u.prefix, s, prefix_blen(&zpi.dst)); | |
3039 | ||
25d760c5 PG |
3040 | STREAM_GETW(s, zpi.src_port_min); |
3041 | STREAM_GETW(s, zpi.src_port_max); | |
3042 | STREAM_GETW(s, zpi.dst_port_min); | |
3043 | STREAM_GETW(s, zpi.dst_port_max); | |
3044 | STREAM_GETC(s, zpi.proto); | |
bf094f69 QY |
3045 | if (!is_default_prefix(&zpi.src)) |
3046 | zpi.filter_bm |= PBR_FILTER_SRC_IP; | |
3047 | ||
3048 | if (!is_default_prefix(&zpi.dst)) | |
3049 | zpi.filter_bm |= PBR_FILTER_DST_IP; | |
be729dd7 | 3050 | if (zpi.dst_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 | 3051 | zpi.filter_bm |= PBR_FILTER_DST_PORT; |
be729dd7 | 3052 | if (zpi.src_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 PG |
3053 | zpi.filter_bm |= PBR_FILTER_SRC_PORT; |
3054 | if (zpi.dst_port_max != 0) | |
3055 | zpi.filter_bm |= PBR_FILTER_DST_PORT_RANGE; | |
3056 | if (zpi.src_port_max != 0) | |
3057 | zpi.filter_bm |= PBR_FILTER_SRC_PORT_RANGE; | |
3058 | if (zpi.proto != 0) | |
3059 | zpi.filter_bm |= PBR_FILTER_PROTO; | |
bf094f69 | 3060 | |
9863725c QY |
3061 | if (!(zpi.dst.family == AF_INET |
3062 | || zpi.dst.family == AF_INET6)) { | |
cec72d49 | 3063 | zlog_warn( |
6cde4b45 | 3064 | "Unsupported PBR destination IP family: %s (%hhu)", |
cec72d49 | 3065 | family2str(zpi.dst.family), zpi.dst.family); |
9863725c QY |
3066 | goto stream_failure; |
3067 | } | |
3068 | if (!(zpi.src.family == AF_INET | |
3069 | || zpi.src.family == AF_INET6)) { | |
cec72d49 | 3070 | zlog_warn( |
6cde4b45 | 3071 | "Unsupported PBR source IP family: %s (%hhu)", |
cec72d49 | 3072 | family2str(zpi.src.family), zpi.src.family); |
9863725c QY |
3073 | goto stream_failure; |
3074 | } | |
3075 | ||
bf094f69 | 3076 | /* calculate backpointer */ |
62f20a52 DS |
3077 | zpi.backpointer = |
3078 | zebra_pbr_lookup_ipset_pername(ipset.ipset_name); | |
f096bae4 DS |
3079 | |
3080 | if (!zpi.backpointer) { | |
3081 | zlog_warn("ipset name specified: %s does not exist", | |
3082 | ipset.ipset_name); | |
3083 | goto stream_failure; | |
3084 | } | |
3085 | ||
bf094f69 | 3086 | if (hdr->command == ZEBRA_IPSET_ENTRY_ADD) |
62f20a52 | 3087 | zebra_pbr_add_ipset_entry(&zpi); |
bf094f69 | 3088 | else |
62f20a52 | 3089 | zebra_pbr_del_ipset_entry(&zpi); |
bf094f69 QY |
3090 | } |
3091 | ||
3092 | stream_failure: | |
3093 | return; | |
3094 | } | |
3095 | ||
3096 | static inline void zread_iptable(ZAPI_HANDLER_ARGS) | |
3097 | { | |
8b5c4dce QY |
3098 | struct zebra_pbr_iptable *zpi = |
3099 | XCALLOC(MTYPE_TMP, sizeof(struct zebra_pbr_iptable)); | |
bf094f69 QY |
3100 | struct stream *s; |
3101 | ||
3102 | s = msg; | |
3103 | ||
8b5c4dce QY |
3104 | zpi->interface_name_list = list_new(); |
3105 | zpi->sock = client->sock; | |
3106 | zpi->vrf_id = zvrf->vrf->vrf_id; | |
3107 | STREAM_GETL(s, zpi->unique); | |
3108 | STREAM_GETL(s, zpi->type); | |
3109 | STREAM_GETL(s, zpi->filter_bm); | |
3110 | STREAM_GETL(s, zpi->action); | |
3111 | STREAM_GETL(s, zpi->fwmark); | |
3112 | STREAM_GET(&zpi->ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
a60b7031 | 3113 | STREAM_GETC(s, zpi->family); |
8b5c4dce QY |
3114 | STREAM_GETW(s, zpi->pkt_len_min); |
3115 | STREAM_GETW(s, zpi->pkt_len_max); | |
3116 | STREAM_GETW(s, zpi->tcp_flags); | |
3117 | STREAM_GETW(s, zpi->tcp_mask_flags); | |
3118 | STREAM_GETC(s, zpi->dscp_value); | |
3119 | STREAM_GETC(s, zpi->fragment); | |
3120 | STREAM_GETC(s, zpi->protocol); | |
a60b7031 | 3121 | STREAM_GETW(s, zpi->flow_label); |
8b5c4dce QY |
3122 | STREAM_GETL(s, zpi->nb_interface); |
3123 | zebra_pbr_iptable_update_interfacelist(s, zpi); | |
bf094f69 QY |
3124 | |
3125 | if (hdr->command == ZEBRA_IPTABLE_ADD) | |
8b5c4dce | 3126 | zebra_pbr_add_iptable(zpi); |
bf094f69 | 3127 | else |
8b5c4dce QY |
3128 | zebra_pbr_del_iptable(zpi); |
3129 | ||
bf094f69 | 3130 | stream_failure: |
8b5c4dce QY |
3131 | zebra_pbr_iptable_free(zpi); |
3132 | zpi = NULL; | |
bf094f69 QY |
3133 | return; |
3134 | } | |
3135 | ||
d68e74b4 JU |
3136 | static inline void zread_neigh_discover(ZAPI_HANDLER_ARGS) |
3137 | { | |
3138 | struct stream *s; | |
3139 | ifindex_t ifindex; | |
3140 | struct interface *ifp; | |
3141 | struct prefix p; | |
3142 | struct ipaddr ip; | |
3143 | ||
3144 | s = msg; | |
3145 | ||
3146 | STREAM_GETL(s, ifindex); | |
3147 | ||
3148 | ifp = if_lookup_by_index_per_ns(zvrf->zns, ifindex); | |
3149 | if (!ifp) { | |
3150 | zlog_debug("Failed to lookup ifindex: %u", ifindex); | |
3151 | return; | |
3152 | } | |
3153 | ||
3154 | STREAM_GETC(s, p.family); | |
3155 | STREAM_GETC(s, p.prefixlen); | |
3156 | STREAM_GET(&p.u.prefix, s, prefix_blen(&p)); | |
3157 | ||
3158 | if (p.family == AF_INET) | |
3159 | SET_IPADDR_V4(&ip); | |
3160 | else | |
3161 | SET_IPADDR_V6(&ip); | |
3162 | ||
3163 | memcpy(&ip.ip.addr, &p.u.prefix, prefix_blen(&p)); | |
3164 | ||
3165 | dplane_neigh_discover(ifp, &ip); | |
3166 | ||
3167 | stream_failure: | |
3168 | return; | |
3169 | } | |
3170 | ||
9ab0b2a3 SW |
3171 | static void zsend_error_msg(struct zserv *client, enum zebra_error_types error, |
3172 | struct zmsghdr *bad_hdr) | |
3173 | { | |
3174 | ||
3175 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
3176 | ||
3177 | zclient_create_header(s, ZEBRA_ERROR, bad_hdr->vrf_id); | |
3178 | ||
3179 | zserv_encode_error(s, error); | |
3180 | ||
3181 | client->error_cnt++; | |
3182 | zserv_send_message(client, s); | |
3183 | } | |
3184 | ||
3185 | static void zserv_error_no_vrf(ZAPI_HANDLER_ARGS) | |
3186 | { | |
3187 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
3188 | zlog_debug("ZAPI message specifies unknown VRF: %d", | |
3189 | hdr->vrf_id); | |
3190 | ||
5ee080f0 | 3191 | zsend_error_msg(client, ZEBRA_NO_VRF, hdr); |
9ab0b2a3 SW |
3192 | } |
3193 | ||
3194 | static void zserv_error_invalid_msg_type(ZAPI_HANDLER_ARGS) | |
3195 | { | |
3196 | zlog_info("Zebra received unknown command %d", hdr->command); | |
3197 | ||
5ee080f0 | 3198 | zsend_error_msg(client, ZEBRA_INVALID_MSG_TYPE, hdr); |
9ab0b2a3 SW |
3199 | } |
3200 | ||
2b64873d | 3201 | void (*const zserv_handlers[])(ZAPI_HANDLER_ARGS) = { |
bf094f69 QY |
3202 | [ZEBRA_ROUTER_ID_ADD] = zread_router_id_add, |
3203 | [ZEBRA_ROUTER_ID_DELETE] = zread_router_id_delete, | |
3204 | [ZEBRA_INTERFACE_ADD] = zread_interface_add, | |
3205 | [ZEBRA_INTERFACE_DELETE] = zread_interface_delete, | |
c3bd894e | 3206 | [ZEBRA_INTERFACE_SET_PROTODOWN] = zread_interface_set_protodown, |
bf094f69 QY |
3207 | [ZEBRA_ROUTE_ADD] = zread_route_add, |
3208 | [ZEBRA_ROUTE_DELETE] = zread_route_del, | |
bf094f69 QY |
3209 | [ZEBRA_REDISTRIBUTE_ADD] = zebra_redistribute_add, |
3210 | [ZEBRA_REDISTRIBUTE_DELETE] = zebra_redistribute_delete, | |
3211 | [ZEBRA_REDISTRIBUTE_DEFAULT_ADD] = zebra_redistribute_default_add, | |
3212 | [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE] = zebra_redistribute_default_delete, | |
3213 | [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB] = zread_ipv4_nexthop_lookup_mrib, | |
3214 | [ZEBRA_HELLO] = zread_hello, | |
3215 | [ZEBRA_NEXTHOP_REGISTER] = zread_rnh_register, | |
3216 | [ZEBRA_NEXTHOP_UNREGISTER] = zread_rnh_unregister, | |
3217 | [ZEBRA_IMPORT_ROUTE_REGISTER] = zread_rnh_register, | |
3218 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = zread_rnh_unregister, | |
3219 | [ZEBRA_BFD_DEST_UPDATE] = zebra_ptm_bfd_dst_register, | |
3220 | [ZEBRA_BFD_DEST_REGISTER] = zebra_ptm_bfd_dst_register, | |
3221 | [ZEBRA_BFD_DEST_DEREGISTER] = zebra_ptm_bfd_dst_deregister, | |
d3af6147 RZ |
3222 | #if HAVE_BFDD > 0 |
3223 | [ZEBRA_BFD_DEST_REPLAY] = zebra_ptm_bfd_dst_replay, | |
3224 | #endif /* HAVE_BFDD */ | |
bf094f69 QY |
3225 | [ZEBRA_VRF_UNREGISTER] = zread_vrf_unregister, |
3226 | [ZEBRA_VRF_LABEL] = zread_vrf_label, | |
3227 | [ZEBRA_BFD_CLIENT_REGISTER] = zebra_ptm_bfd_client_register, | |
bf094f69 QY |
3228 | [ZEBRA_INTERFACE_ENABLE_RADV] = zebra_interface_radv_enable, |
3229 | [ZEBRA_INTERFACE_DISABLE_RADV] = zebra_interface_radv_disable, | |
31f937fb SM |
3230 | [ZEBRA_SR_POLICY_SET] = zread_sr_policy_set, |
3231 | [ZEBRA_SR_POLICY_DELETE] = zread_sr_policy_delete, | |
ea6b290b RW |
3232 | [ZEBRA_MPLS_LABELS_ADD] = zread_mpls_labels_add, |
3233 | [ZEBRA_MPLS_LABELS_DELETE] = zread_mpls_labels_delete, | |
3234 | [ZEBRA_MPLS_LABELS_REPLACE] = zread_mpls_labels_replace, | |
bf094f69 QY |
3235 | [ZEBRA_IPMR_ROUTE_STATS] = zebra_ipmr_route_stats, |
3236 | [ZEBRA_LABEL_MANAGER_CONNECT] = zread_label_manager_request, | |
f533be73 | 3237 | [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC] = zread_label_manager_request, |
bf094f69 QY |
3238 | [ZEBRA_GET_LABEL_CHUNK] = zread_label_manager_request, |
3239 | [ZEBRA_RELEASE_LABEL_CHUNK] = zread_label_manager_request, | |
3240 | [ZEBRA_FEC_REGISTER] = zread_fec_register, | |
3241 | [ZEBRA_FEC_UNREGISTER] = zread_fec_unregister, | |
3242 | [ZEBRA_ADVERTISE_DEFAULT_GW] = zebra_vxlan_advertise_gw_macip, | |
278e26de | 3243 | [ZEBRA_ADVERTISE_SVI_MACIP] = zebra_vxlan_advertise_svi_macip, |
bf094f69 QY |
3244 | [ZEBRA_ADVERTISE_SUBNET] = zebra_vxlan_advertise_subnet, |
3245 | [ZEBRA_ADVERTISE_ALL_VNI] = zebra_vxlan_advertise_all_vni, | |
ce5160c0 AK |
3246 | [ZEBRA_REMOTE_ES_VTEP_ADD] = zebra_evpn_proc_remote_es, |
3247 | [ZEBRA_REMOTE_ES_VTEP_DEL] = zebra_evpn_proc_remote_es, | |
bf094f69 QY |
3248 | [ZEBRA_REMOTE_VTEP_ADD] = zebra_vxlan_remote_vtep_add, |
3249 | [ZEBRA_REMOTE_VTEP_DEL] = zebra_vxlan_remote_vtep_del, | |
3250 | [ZEBRA_REMOTE_MACIP_ADD] = zebra_vxlan_remote_macip_add, | |
3251 | [ZEBRA_REMOTE_MACIP_DEL] = zebra_vxlan_remote_macip_del, | |
3950b52c | 3252 | [ZEBRA_DUPLICATE_ADDR_DETECTION] = zebra_vxlan_dup_addr_detection, |
bf094f69 QY |
3253 | [ZEBRA_INTERFACE_SET_MASTER] = zread_interface_set_master, |
3254 | [ZEBRA_PW_ADD] = zread_pseudowire, | |
3255 | [ZEBRA_PW_DELETE] = zread_pseudowire, | |
3256 | [ZEBRA_PW_SET] = zread_pseudowire, | |
3257 | [ZEBRA_PW_UNSET] = zread_pseudowire, | |
3258 | [ZEBRA_RULE_ADD] = zread_rule, | |
3259 | [ZEBRA_RULE_DELETE] = zread_rule, | |
3260 | [ZEBRA_TABLE_MANAGER_CONNECT] = zread_table_manager_request, | |
3261 | [ZEBRA_GET_TABLE_CHUNK] = zread_table_manager_request, | |
3262 | [ZEBRA_RELEASE_TABLE_CHUNK] = zread_table_manager_request, | |
3263 | [ZEBRA_IPSET_CREATE] = zread_ipset, | |
3264 | [ZEBRA_IPSET_DESTROY] = zread_ipset, | |
3265 | [ZEBRA_IPSET_ENTRY_ADD] = zread_ipset_entry, | |
3266 | [ZEBRA_IPSET_ENTRY_DELETE] = zread_ipset_entry, | |
3267 | [ZEBRA_IPTABLE_ADD] = zread_iptable, | |
3268 | [ZEBRA_IPTABLE_DELETE] = zread_iptable, | |
fbac9605 | 3269 | [ZEBRA_VXLAN_FLOOD_CONTROL] = zebra_vxlan_flood_control, |
ecbbc3a7 | 3270 | [ZEBRA_VXLAN_SG_REPLAY] = zebra_vxlan_sg_replay, |
ee235396 SK |
3271 | [ZEBRA_MLAG_CLIENT_REGISTER] = zebra_mlag_client_register, |
3272 | [ZEBRA_MLAG_CLIENT_UNREGISTER] = zebra_mlag_client_unregister, | |
3273 | [ZEBRA_MLAG_FORWARD_MSG] = zebra_mlag_forward_client_msg, | |
d68e74b4 | 3274 | [ZEBRA_CLIENT_CAPABILITIES] = zread_client_capabilities, |
2f35a820 | 3275 | [ZEBRA_NEIGH_DISCOVER] = zread_neigh_discover, |
8b2d3a0f | 3276 | [ZEBRA_NHG_ADD] = zread_nhg_add, |
2f35a820 DS |
3277 | [ZEBRA_NHG_DEL] = zread_nhg_del, |
3278 | }; | |
bf094f69 | 3279 | |
79b3664a MS |
3280 | /* |
3281 | * Process a batch of zapi messages. | |
3282 | */ | |
3283 | void zserv_handle_commands(struct zserv *client, struct stream_fifo *fifo) | |
bf094f69 | 3284 | { |
904e0d88 QY |
3285 | struct zmsghdr hdr; |
3286 | struct zebra_vrf *zvrf; | |
79b3664a MS |
3287 | struct stream *msg; |
3288 | struct stream_fifo temp_fifo; | |
904e0d88 | 3289 | |
79b3664a | 3290 | stream_fifo_init(&temp_fifo); |
aa8cb964 | 3291 | |
79b3664a MS |
3292 | while (stream_fifo_head(fifo)) { |
3293 | msg = stream_fifo_pop(fifo); | |
bf094f69 | 3294 | |
79b3664a MS |
3295 | if (STREAM_READABLE(msg) > ZEBRA_MAX_PACKET_SIZ) { |
3296 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
3297 | zlog_debug( | |
3298 | "ZAPI message is %zu bytes long but the maximum packet size is %u; dropping", | |
3299 | STREAM_READABLE(msg), | |
3300 | ZEBRA_MAX_PACKET_SIZ); | |
3301 | goto continue_loop; | |
3302 | } | |
3303 | ||
3304 | zapi_parse_header(msg, &hdr); | |
3305 | ||
ec64a77b DS |
3306 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV |
3307 | && IS_ZEBRA_DEBUG_DETAIL) | |
79b3664a | 3308 | zserv_log_message(NULL, msg, &hdr); |
49b3b01f | 3309 | |
79b3664a | 3310 | hdr.length -= ZEBRA_HEADER_SIZE; |
904e0d88 | 3311 | |
79b3664a MS |
3312 | /* Before checking for a handler function, check for |
3313 | * special messages that are handled in another module; | |
3314 | * we'll treat these as opaque. | |
3315 | */ | |
3316 | if (zebra_opaque_handles_msgid(hdr.command)) { | |
3317 | /* Reset message buffer */ | |
3318 | stream_set_getp(msg, 0); | |
3319 | ||
3320 | stream_fifo_push(&temp_fifo, msg); | |
3321 | ||
3322 | /* Continue without freeing the message */ | |
3323 | msg = NULL; | |
3324 | goto continue_loop; | |
3325 | } | |
3326 | ||
3327 | /* lookup vrf */ | |
3328 | zvrf = zebra_vrf_lookup_by_id(hdr.vrf_id); | |
3329 | if (!zvrf) { | |
3330 | zserv_error_no_vrf(client, &hdr, msg, zvrf); | |
3331 | goto continue_loop; | |
3332 | } | |
3333 | ||
3334 | if (hdr.command >= array_size(zserv_handlers) | |
3335 | || zserv_handlers[hdr.command] == NULL) { | |
3336 | zserv_error_invalid_msg_type(client, &hdr, msg, zvrf); | |
3337 | goto continue_loop; | |
3338 | } | |
3339 | ||
3340 | zserv_handlers[hdr.command](client, &hdr, msg, zvrf); | |
3341 | ||
3342 | continue_loop: | |
3343 | stream_free(msg); | |
3344 | } | |
904e0d88 | 3345 | |
79b3664a MS |
3346 | /* Dispatch any special messages from the temp fifo */ |
3347 | if (stream_fifo_head(&temp_fifo) != NULL) | |
3348 | zebra_opaque_enqueue_batch(&temp_fifo); | |
9ab0b2a3 | 3349 | |
79b3664a | 3350 | stream_fifo_deinit(&temp_fifo); |
bf094f69 | 3351 | } |