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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" | |
27 | #include "lib/command.h" | |
28 | #include "lib/if.h" | |
29 | #include "lib/thread.h" | |
30 | #include "lib/stream.h" | |
31 | #include "lib/memory.h" | |
32 | #include "lib/table.h" | |
33 | #include "lib/network.h" | |
34 | #include "lib/sockunion.h" | |
35 | #include "lib/log.h" | |
36 | #include "lib/zclient.h" | |
37 | #include "lib/privs.h" | |
38 | #include "lib/network.h" | |
39 | #include "lib/buffer.h" | |
40 | #include "lib/nexthop.h" | |
41 | #include "lib/vrf.h" | |
42 | #include "lib/libfrr.h" | |
43 | #include "lib/sockopt.h" | |
5e7939a5 | 44 | #include "lib/lib_errors.h" |
bf094f69 | 45 | |
161e9ab7 | 46 | #include "zebra/zebra_router.h" |
bf094f69 QY |
47 | #include "zebra/rib.h" |
48 | #include "zebra/zebra_memory.h" | |
49 | #include "zebra/zebra_ns.h" | |
50 | #include "zebra/zebra_vrf.h" | |
51 | #include "zebra/router-id.h" | |
52 | #include "zebra/redistribute.h" | |
53 | #include "zebra/debug.h" | |
54 | #include "zebra/zebra_rnh.h" | |
55 | #include "zebra/rt_netlink.h" | |
56 | #include "zebra/interface.h" | |
57 | #include "zebra/zebra_ptm.h" | |
58 | #include "zebra/rtadv.h" | |
59 | #include "zebra/zebra_mpls.h" | |
60 | #include "zebra/zebra_mroute.h" | |
bf094f69 QY |
61 | #include "zebra/zebra_vxlan.h" |
62 | #include "zebra/rt.h" | |
63 | #include "zebra/zebra_pbr.h" | |
64 | #include "zebra/table_manager.h" | |
65 | #include "zebra/zapi_msg.h" | |
364fed6b | 66 | #include "zebra/zebra_errors.h" |
02c0866d | 67 | #include "zebra/zebra_mlag.h" |
54bea4e5 | 68 | #include "zebra/connected.h" |
bf094f69 QY |
69 | |
70 | /* Encoding helpers -------------------------------------------------------- */ | |
71 | ||
72 | static void zserv_encode_interface(struct stream *s, struct interface *ifp) | |
73 | { | |
74 | /* Interface information. */ | |
53e60e5c | 75 | struct zebra_if *zif = ifp->info; |
19c38250 | 76 | |
bf094f69 QY |
77 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); |
78 | stream_putl(s, ifp->ifindex); | |
79 | stream_putc(s, ifp->status); | |
80 | stream_putq(s, ifp->flags); | |
81 | stream_putc(s, ifp->ptm_enable); | |
82 | stream_putc(s, ifp->ptm_status); | |
83 | stream_putl(s, ifp->metric); | |
84 | stream_putl(s, ifp->speed); | |
85 | stream_putl(s, ifp->mtu); | |
86 | stream_putl(s, ifp->mtu6); | |
87 | stream_putl(s, ifp->bandwidth); | |
53e60e5c | 88 | stream_putl(s, zif->link_ifindex); |
bf094f69 QY |
89 | stream_putl(s, ifp->ll_type); |
90 | stream_putl(s, ifp->hw_addr_len); | |
91 | if (ifp->hw_addr_len) | |
92 | stream_put(s, ifp->hw_addr, ifp->hw_addr_len); | |
93 | ||
94 | /* Then, Traffic Engineering parameters if any */ | |
95 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { | |
96 | stream_putc(s, 1); | |
97 | zebra_interface_link_params_write(s, ifp); | |
98 | } else | |
99 | stream_putc(s, 0); | |
100 | ||
101 | /* Write packet size. */ | |
102 | stream_putw_at(s, 0, stream_get_endp(s)); | |
103 | } | |
104 | ||
105 | static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) | |
106 | { | |
107 | struct vrf_data data; | |
108 | const char *netns_name = zvrf_ns_name(zvrf); | |
109 | ||
110 | data.l.table_id = zvrf->table_id; | |
111 | ||
112 | if (netns_name) | |
113 | strlcpy(data.l.netns_name, basename((char *)netns_name), | |
114 | NS_NAMSIZ); | |
115 | else | |
116 | memset(data.l.netns_name, 0, NS_NAMSIZ); | |
117 | /* Pass the tableid and the netns NAME */ | |
118 | stream_put(s, &data, sizeof(struct vrf_data)); | |
119 | /* Interface information. */ | |
120 | stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); | |
121 | /* Write packet size. */ | |
122 | stream_putw_at(s, 0, stream_get_endp(s)); | |
123 | } | |
124 | ||
125 | static int zserv_encode_nexthop(struct stream *s, struct nexthop *nexthop) | |
126 | { | |
a756969d | 127 | stream_putl(s, nexthop->vrf_id); |
bf094f69 QY |
128 | stream_putc(s, nexthop->type); |
129 | switch (nexthop->type) { | |
130 | case NEXTHOP_TYPE_IPV4: | |
131 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
132 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
133 | stream_putl(s, nexthop->ifindex); | |
134 | break; | |
135 | case NEXTHOP_TYPE_IPV6: | |
136 | stream_put(s, &nexthop->gate.ipv6, 16); | |
137 | break; | |
138 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
139 | stream_put(s, &nexthop->gate.ipv6, 16); | |
140 | stream_putl(s, nexthop->ifindex); | |
141 | break; | |
142 | case NEXTHOP_TYPE_IFINDEX: | |
143 | stream_putl(s, nexthop->ifindex); | |
144 | break; | |
145 | default: | |
146 | /* do nothing */ | |
147 | break; | |
148 | } | |
149 | return 1; | |
150 | } | |
151 | ||
9ab0b2a3 SW |
152 | /* |
153 | * Zebra error addition adds error type. | |
154 | * | |
155 | * | |
156 | * 0 1 | |
157 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 | |
158 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
159 | * | enum zebra_error_types | | |
160 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
161 | * | |
162 | */ | |
163 | static void zserv_encode_error(struct stream *s, enum zebra_error_types error) | |
164 | { | |
165 | stream_put(s, &error, sizeof(error)); | |
166 | ||
167 | /* Write packet size. */ | |
168 | stream_putw_at(s, 0, stream_get_endp(s)); | |
169 | } | |
170 | ||
bf094f69 QY |
171 | /* Send handlers ----------------------------------------------------------- */ |
172 | ||
173 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ | |
174 | /* | |
175 | * This function is called in the following situations: | |
176 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
177 | * from the client. | |
178 | * - at startup, when zebra figures out the available interfaces | |
179 | * - when an interface is added (where support for | |
180 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
181 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
182 | * received) | |
183 | */ | |
184 | int zsend_interface_add(struct zserv *client, struct interface *ifp) | |
185 | { | |
186 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
187 | ||
a36898e7 | 188 | zclient_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); |
bf094f69 QY |
189 | zserv_encode_interface(s, ifp); |
190 | ||
191 | client->ifadd_cnt++; | |
21ccc0cf | 192 | return zserv_send_message(client, s); |
bf094f69 QY |
193 | } |
194 | ||
195 | /* Interface deletion from zebra daemon. */ | |
196 | int zsend_interface_delete(struct zserv *client, struct interface *ifp) | |
197 | { | |
198 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
199 | ||
a36898e7 | 200 | zclient_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); |
bf094f69 QY |
201 | zserv_encode_interface(s, ifp); |
202 | ||
203 | client->ifdel_cnt++; | |
21ccc0cf | 204 | return zserv_send_message(client, s); |
bf094f69 QY |
205 | } |
206 | ||
207 | int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) | |
208 | { | |
209 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
210 | ||
211 | zclient_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); | |
212 | zserv_encode_vrf(s, zvrf); | |
213 | ||
214 | client->vrfadd_cnt++; | |
21ccc0cf | 215 | return zserv_send_message(client, s); |
bf094f69 QY |
216 | } |
217 | ||
218 | /* VRF deletion from zebra daemon. */ | |
219 | int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) | |
220 | ||
221 | { | |
222 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
223 | ||
224 | zclient_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); | |
225 | zserv_encode_vrf(s, zvrf); | |
226 | ||
227 | client->vrfdel_cnt++; | |
21ccc0cf | 228 | return zserv_send_message(client, s); |
bf094f69 QY |
229 | } |
230 | ||
231 | int zsend_interface_link_params(struct zserv *client, struct interface *ifp) | |
232 | { | |
233 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
234 | ||
bf094f69 QY |
235 | if (!ifp->link_params) { |
236 | stream_free(s); | |
237 | return 0; | |
238 | } | |
239 | ||
a36898e7 | 240 | zclient_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); |
bf094f69 QY |
241 | |
242 | /* Add Interface Index */ | |
243 | stream_putl(s, ifp->ifindex); | |
244 | ||
245 | /* Then TE Link Parameters */ | |
246 | if (zebra_interface_link_params_write(s, ifp) == 0) { | |
247 | stream_free(s); | |
248 | return 0; | |
249 | } | |
250 | ||
251 | /* Write packet size. */ | |
252 | stream_putw_at(s, 0, stream_get_endp(s)); | |
253 | ||
21ccc0cf | 254 | return zserv_send_message(client, s); |
bf094f69 QY |
255 | } |
256 | ||
257 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or | |
258 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
259 | * | |
260 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
261 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
262 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
263 | * sent from zebra to the client | |
264 | * - redistribute new address info to all clients in the following situations | |
265 | * - at startup, when zebra figures out the available interfaces | |
266 | * - when an interface is added (where support for | |
267 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
268 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
269 | * received) | |
b1bd1015 | 270 | * - for the vty commands "ip address A.B.C.D/M [<label LINE>]" |
bf094f69 QY |
271 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" |
272 | * - when an RTM_NEWADDR message is received from the kernel, | |
273 | * | |
274 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
275 | * | |
276 | * zsend_interface_address(DELETE) | |
277 | * ^ | |
278 | * | | |
279 | * zebra_interface_address_delete_update | |
280 | * ^ ^ ^ | |
281 | * | | if_delete_update | |
282 | * | | | |
283 | * ip_address_uninstall connected_delete_ipv4 | |
284 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
285 | * ^ ^ | |
286 | * | | | |
287 | * | RTM_NEWADDR on routing/netlink socket | |
288 | * | | |
289 | * vty commands: | |
290 | * "no ip address A.B.C.D/M [label LINE]" | |
b1bd1015 | 291 | * "no ip address A.B.C.D/M" |
bf094f69 QY |
292 | * ["no ipv6 address X:X::X:X/M"] |
293 | * | |
294 | */ | |
295 | int zsend_interface_address(int cmd, struct zserv *client, | |
296 | struct interface *ifp, struct connected *ifc) | |
297 | { | |
298 | int blen; | |
299 | struct prefix *p; | |
300 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
301 | ||
a36898e7 | 302 | zclient_create_header(s, cmd, ifp->vrf_id); |
bf094f69 QY |
303 | stream_putl(s, ifp->ifindex); |
304 | ||
305 | /* Interface address flag. */ | |
306 | stream_putc(s, ifc->flags); | |
307 | ||
308 | /* Prefix information. */ | |
309 | p = ifc->address; | |
310 | stream_putc(s, p->family); | |
311 | blen = prefix_blen(p); | |
312 | stream_put(s, &p->u.prefix, blen); | |
313 | ||
314 | /* | |
315 | * XXX gnu version does not send prefixlen for | |
316 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
317 | * but zebra_interface_address_delete_read() in the gnu version | |
318 | * expects to find it | |
319 | */ | |
320 | stream_putc(s, p->prefixlen); | |
321 | ||
322 | /* Destination. */ | |
323 | p = ifc->destination; | |
324 | if (p) | |
325 | stream_put(s, &p->u.prefix, blen); | |
326 | else | |
327 | stream_put(s, NULL, blen); | |
328 | ||
329 | /* Write packet size. */ | |
330 | stream_putw_at(s, 0, stream_get_endp(s)); | |
331 | ||
332 | client->connected_rt_add_cnt++; | |
21ccc0cf | 333 | return zserv_send_message(client, s); |
bf094f69 QY |
334 | } |
335 | ||
336 | static int zsend_interface_nbr_address(int cmd, struct zserv *client, | |
337 | struct interface *ifp, | |
338 | struct nbr_connected *ifc) | |
339 | { | |
340 | int blen; | |
341 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
342 | struct prefix *p; | |
343 | ||
a36898e7 | 344 | zclient_create_header(s, cmd, ifp->vrf_id); |
bf094f69 QY |
345 | stream_putl(s, ifp->ifindex); |
346 | ||
347 | /* Prefix information. */ | |
348 | p = ifc->address; | |
349 | stream_putc(s, p->family); | |
350 | blen = prefix_blen(p); | |
351 | stream_put(s, &p->u.prefix, blen); | |
352 | ||
353 | /* | |
354 | * XXX gnu version does not send prefixlen for | |
355 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
356 | * but zebra_interface_address_delete_read() in the gnu version | |
357 | * expects to find it | |
358 | */ | |
359 | stream_putc(s, p->prefixlen); | |
360 | ||
361 | /* Write packet size. */ | |
362 | stream_putw_at(s, 0, stream_get_endp(s)); | |
363 | ||
21ccc0cf | 364 | return zserv_send_message(client, s); |
bf094f69 QY |
365 | } |
366 | ||
367 | /* Interface address addition. */ | |
368 | static void zebra_interface_nbr_address_add_update(struct interface *ifp, | |
369 | struct nbr_connected *ifc) | |
370 | { | |
371 | struct listnode *node, *nnode; | |
372 | struct zserv *client; | |
373 | struct prefix *p; | |
374 | ||
375 | if (IS_ZEBRA_DEBUG_EVENT) { | |
376 | char buf[INET6_ADDRSTRLEN]; | |
377 | ||
378 | p = ifc->address; | |
379 | zlog_debug( | |
380 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
381 | inet_ntop(p->family, &p->u.prefix, buf, | |
382 | INET6_ADDRSTRLEN), | |
383 | p->prefixlen, ifc->ifp->name); | |
384 | } | |
385 | ||
17da84a4 KS |
386 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
387 | /* Do not send unsolicited messages to synchronous clients. */ | |
388 | if (client->synchronous) | |
389 | continue; | |
390 | ||
bf094f69 QY |
391 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, |
392 | client, ifp, ifc); | |
17da84a4 | 393 | } |
bf094f69 QY |
394 | } |
395 | ||
396 | /* Interface address deletion. */ | |
397 | static void zebra_interface_nbr_address_delete_update(struct interface *ifp, | |
398 | struct nbr_connected *ifc) | |
399 | { | |
400 | struct listnode *node, *nnode; | |
401 | struct zserv *client; | |
402 | struct prefix *p; | |
403 | ||
404 | if (IS_ZEBRA_DEBUG_EVENT) { | |
405 | char buf[INET6_ADDRSTRLEN]; | |
406 | ||
407 | p = ifc->address; | |
408 | zlog_debug( | |
409 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
410 | inet_ntop(p->family, &p->u.prefix, buf, | |
411 | INET6_ADDRSTRLEN), | |
412 | p->prefixlen, ifc->ifp->name); | |
413 | } | |
414 | ||
17da84a4 KS |
415 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
416 | /* Do not send unsolicited messages to synchronous clients. */ | |
417 | if (client->synchronous) | |
418 | continue; | |
419 | ||
bf094f69 QY |
420 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, |
421 | client, ifp, ifc); | |
17da84a4 | 422 | } |
bf094f69 QY |
423 | } |
424 | ||
425 | /* Send addresses on interface to client */ | |
426 | int zsend_interface_addresses(struct zserv *client, struct interface *ifp) | |
427 | { | |
428 | struct listnode *cnode, *cnnode; | |
429 | struct connected *c; | |
430 | struct nbr_connected *nc; | |
431 | ||
432 | /* Send interface addresses. */ | |
433 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
434 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
435 | continue; | |
436 | ||
437 | if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
438 | ifp, c) | |
439 | < 0) | |
440 | return -1; | |
441 | } | |
442 | ||
443 | /* Send interface neighbors. */ | |
444 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { | |
445 | if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
446 | client, ifp, nc) | |
447 | < 0) | |
448 | return -1; | |
449 | } | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | /* Notify client about interface moving from one VRF to another. | |
455 | * Whether client is interested in old and new VRF is checked by caller. | |
456 | */ | |
457 | int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, | |
458 | vrf_id_t vrf_id) | |
459 | { | |
460 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
461 | ||
a36898e7 | 462 | zclient_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); |
bf094f69 | 463 | |
91d227b7 RW |
464 | /* Fill in the name of the interface and its new VRF (id) */ |
465 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
bf094f69 QY |
466 | stream_putl(s, vrf_id); |
467 | ||
468 | /* Write packet size. */ | |
469 | stream_putw_at(s, 0, stream_get_endp(s)); | |
470 | ||
471 | client->if_vrfchg_cnt++; | |
21ccc0cf | 472 | return zserv_send_message(client, s); |
bf094f69 QY |
473 | } |
474 | ||
475 | /* Add new nbr connected IPv6 address */ | |
476 | void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) | |
477 | { | |
478 | struct nbr_connected *ifc; | |
479 | struct prefix p; | |
480 | ||
481 | p.family = AF_INET6; | |
a85297a7 | 482 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
483 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
484 | ||
8b1766b1 QY |
485 | ifc = listnode_head(ifp->nbr_connected); |
486 | if (!ifc) { | |
bf094f69 QY |
487 | /* new addition */ |
488 | ifc = nbr_connected_new(); | |
489 | ifc->address = prefix_new(); | |
490 | ifc->ifp = ifp; | |
491 | listnode_add(ifp->nbr_connected, ifc); | |
492 | } | |
493 | ||
494 | prefix_copy(ifc->address, &p); | |
495 | ||
496 | zebra_interface_nbr_address_add_update(ifp, ifc); | |
497 | ||
498 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); | |
499 | } | |
500 | ||
501 | void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) | |
502 | { | |
503 | struct nbr_connected *ifc; | |
504 | struct prefix p; | |
505 | ||
506 | p.family = AF_INET6; | |
a85297a7 | 507 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
508 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
509 | ||
510 | ifc = nbr_connected_check(ifp, &p); | |
511 | if (!ifc) | |
512 | return; | |
513 | ||
514 | listnode_delete(ifp->nbr_connected, ifc); | |
515 | ||
516 | zebra_interface_nbr_address_delete_update(ifp, ifc); | |
517 | ||
518 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); | |
519 | ||
520 | nbr_connected_free(ifc); | |
521 | } | |
522 | ||
523 | /* | |
524 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
525 | * ZEBRA_INTERFACE_DOWN. | |
526 | * | |
527 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
528 | * the clients in one of 2 situations: | |
529 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
530 | * - a vty command modifying the bandwidth of an interface is received. | |
531 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
532 | */ | |
533 | int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) | |
534 | { | |
535 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
536 | ||
a36898e7 | 537 | zclient_create_header(s, cmd, ifp->vrf_id); |
bf094f69 QY |
538 | zserv_encode_interface(s, ifp); |
539 | ||
540 | if (cmd == ZEBRA_INTERFACE_UP) | |
541 | client->ifup_cnt++; | |
542 | else | |
543 | client->ifdown_cnt++; | |
544 | ||
21ccc0cf | 545 | return zserv_send_message(client, s); |
bf094f69 QY |
546 | } |
547 | ||
86391e56 MS |
548 | int zsend_redistribute_route(int cmd, struct zserv *client, |
549 | const struct prefix *p, | |
40f321c0 MS |
550 | const struct prefix *src_p, |
551 | const struct route_entry *re) | |
bf094f69 QY |
552 | { |
553 | struct zapi_route api; | |
554 | struct zapi_nexthop *api_nh; | |
555 | struct nexthop *nexthop; | |
9a0d4dd3 | 556 | uint8_t count = 0; |
34fa0870 | 557 | afi_t afi; |
f3f45626 DS |
558 | size_t stream_size = |
559 | MAX(ZEBRA_MAX_PACKET_SIZ, sizeof(struct zapi_route)); | |
bf094f69 QY |
560 | |
561 | memset(&api, 0, sizeof(api)); | |
562 | api.vrf_id = re->vrf_id; | |
563 | api.type = re->type; | |
e4081c0e | 564 | api.safi = SAFI_UNICAST; |
bf094f69 QY |
565 | api.instance = re->instance; |
566 | api.flags = re->flags; | |
567 | ||
34fa0870 DS |
568 | afi = family2afi(p->family); |
569 | switch (afi) { | |
570 | case AFI_IP: | |
571 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
572 | client->redist_v4_add_cnt++; | |
573 | else | |
574 | client->redist_v4_del_cnt++; | |
575 | break; | |
576 | case AFI_IP6: | |
577 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
578 | client->redist_v6_add_cnt++; | |
579 | else | |
580 | client->redist_v6_del_cnt++; | |
581 | break; | |
582 | default: | |
583 | break; | |
584 | } | |
585 | ||
bf094f69 QY |
586 | /* Prefix. */ |
587 | api.prefix = *p; | |
588 | if (src_p) { | |
589 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
590 | memcpy(&api.src_prefix, src_p, sizeof(api.src_prefix)); | |
591 | } | |
592 | ||
c415d895 | 593 | for (nexthop = re->nhe->nhg.nexthop; |
0eb97b86 | 594 | nexthop; nexthop = nexthop->next) { |
bf094f69 QY |
595 | if (!CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) |
596 | continue; | |
597 | ||
598 | api_nh = &api.nexthops[count]; | |
599 | api_nh->vrf_id = nexthop->vrf_id; | |
600 | api_nh->type = nexthop->type; | |
bd054c1a | 601 | api_nh->weight = nexthop->weight; |
bf094f69 QY |
602 | switch (nexthop->type) { |
603 | case NEXTHOP_TYPE_BLACKHOLE: | |
604 | api_nh->bh_type = nexthop->bh_type; | |
605 | break; | |
606 | case NEXTHOP_TYPE_IPV4: | |
607 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
608 | break; | |
609 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
610 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
611 | api_nh->ifindex = nexthop->ifindex; | |
612 | break; | |
613 | case NEXTHOP_TYPE_IFINDEX: | |
614 | api_nh->ifindex = nexthop->ifindex; | |
615 | break; | |
616 | case NEXTHOP_TYPE_IPV6: | |
617 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
618 | break; | |
619 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
620 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
621 | api_nh->ifindex = nexthop->ifindex; | |
622 | } | |
623 | count++; | |
624 | } | |
625 | ||
9a0d4dd3 DS |
626 | /* Nexthops. */ |
627 | if (count) { | |
628 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
629 | api.nexthop_num = count; | |
630 | } | |
631 | ||
bf094f69 QY |
632 | /* Attributes. */ |
633 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
634 | api.distance = re->distance; | |
635 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); | |
636 | api.metric = re->metric; | |
637 | if (re->tag) { | |
638 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
639 | api.tag = re->tag; | |
640 | } | |
641 | SET_FLAG(api.message, ZAPI_MESSAGE_MTU); | |
642 | api.mtu = re->mtu; | |
643 | ||
f3f45626 | 644 | struct stream *s = stream_new(stream_size); |
bf094f69 QY |
645 | |
646 | /* Encode route and send. */ | |
647 | if (zapi_route_encode(cmd, s, &api) < 0) { | |
648 | stream_free(s); | |
649 | return -1; | |
650 | } | |
651 | ||
652 | if (IS_ZEBRA_DEBUG_SEND) { | |
653 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 654 | |
bf094f69 QY |
655 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
656 | ||
657 | zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %s", | |
658 | __func__, zserv_command_string(cmd), | |
659 | zebra_route_string(client->proto), | |
660 | zebra_route_string(api.type), api.vrf_id, | |
661 | buf_prefix); | |
662 | } | |
21ccc0cf | 663 | return zserv_send_message(client, s); |
bf094f69 QY |
664 | } |
665 | ||
666 | /* | |
667 | * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if | |
668 | * nexthop is not found on mrib. Returns both route metric and protocol | |
669 | * distance. | |
670 | */ | |
671 | static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, | |
672 | struct in_addr addr, | |
673 | struct route_entry *re, | |
674 | struct zebra_vrf *zvrf) | |
675 | { | |
676 | struct stream *s; | |
677 | unsigned long nump; | |
678 | uint8_t num; | |
679 | struct nexthop *nexthop; | |
680 | ||
681 | /* Get output stream. */ | |
682 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
683 | stream_reset(s); | |
684 | ||
685 | /* Fill in result. */ | |
686 | zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); | |
687 | stream_put_in_addr(s, &addr); | |
688 | ||
689 | if (re) { | |
690 | stream_putc(s, re->distance); | |
691 | stream_putl(s, re->metric); | |
692 | num = 0; | |
8b1766b1 QY |
693 | /* remember position for nexthop_num */ |
694 | nump = stream_get_endp(s); | |
695 | /* reserve room for nexthop_num */ | |
696 | stream_putc(s, 0); | |
697 | /* | |
698 | * Only non-recursive routes are elegible to resolve the | |
699 | * nexthop we are looking up. Therefore, we will just iterate | |
700 | * over the top chain of nexthops. | |
701 | */ | |
c415d895 | 702 | for (nexthop = re->nhe->nhg.nexthop; nexthop; |
6b468511 | 703 | nexthop = nexthop->next) |
bf094f69 QY |
704 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) |
705 | num += zserv_encode_nexthop(s, nexthop); | |
706 | ||
8b1766b1 QY |
707 | /* store nexthop_num */ |
708 | stream_putc_at(s, nump, num); | |
bf094f69 QY |
709 | } else { |
710 | stream_putc(s, 0); /* distance */ | |
711 | stream_putl(s, 0); /* metric */ | |
712 | stream_putc(s, 0); /* nexthop_num */ | |
713 | } | |
714 | ||
715 | stream_putw_at(s, 0, stream_get_endp(s)); | |
716 | ||
21ccc0cf | 717 | return zserv_send_message(client, s); |
bf094f69 QY |
718 | } |
719 | ||
86391e56 MS |
720 | /* |
721 | * Common utility send route notification, called from a path using a | |
722 | * route_entry and from a path using a dataplane context. | |
723 | */ | |
724 | static int route_notify_internal(const struct prefix *p, int type, | |
725 | uint16_t instance, vrf_id_t vrf_id, | |
726 | uint32_t table_id, | |
727 | enum zapi_route_notify_owner note) | |
bf094f69 QY |
728 | { |
729 | struct zserv *client; | |
730 | struct stream *s; | |
731 | uint8_t blen; | |
732 | ||
86391e56 | 733 | client = zserv_find_client(type, instance); |
bf094f69 QY |
734 | if (!client || !client->notify_owner) { |
735 | if (IS_ZEBRA_DEBUG_PACKET) { | |
736 | char buff[PREFIX_STRLEN]; | |
737 | ||
738 | zlog_debug( | |
739 | "Not Notifying Owner: %u about prefix %s(%u) %d vrf: %u", | |
86391e56 MS |
740 | type, prefix2str(p, buff, sizeof(buff)), |
741 | table_id, note, vrf_id); | |
bf094f69 QY |
742 | } |
743 | return 0; | |
744 | } | |
745 | ||
746 | if (IS_ZEBRA_DEBUG_PACKET) { | |
747 | char buff[PREFIX_STRLEN]; | |
748 | ||
749 | zlog_debug("Notifying Owner: %u about prefix %s(%u) %d vrf: %u", | |
86391e56 MS |
750 | type, prefix2str(p, buff, sizeof(buff)), |
751 | table_id, note, vrf_id); | |
bf094f69 QY |
752 | } |
753 | ||
754 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
755 | stream_reset(s); | |
756 | ||
86391e56 | 757 | zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, vrf_id); |
bf094f69 QY |
758 | |
759 | stream_put(s, ¬e, sizeof(note)); | |
760 | ||
761 | stream_putc(s, p->family); | |
762 | ||
763 | blen = prefix_blen(p); | |
764 | stream_putc(s, p->prefixlen); | |
765 | stream_put(s, &p->u.prefix, blen); | |
766 | ||
86391e56 | 767 | stream_putl(s, table_id); |
bf094f69 QY |
768 | |
769 | stream_putw_at(s, 0, stream_get_endp(s)); | |
770 | ||
21ccc0cf | 771 | return zserv_send_message(client, s); |
bf094f69 QY |
772 | } |
773 | ||
86391e56 MS |
774 | int zsend_route_notify_owner(struct route_entry *re, const struct prefix *p, |
775 | enum zapi_route_notify_owner note) | |
776 | { | |
777 | return (route_notify_internal(p, re->type, re->instance, re->vrf_id, | |
778 | re->table, note)); | |
779 | } | |
780 | ||
7cdb1a84 MS |
781 | /* |
782 | * Route-owner notification using info from dataplane update context. | |
783 | */ | |
25779064 | 784 | int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx *ctx, |
7cdb1a84 MS |
785 | enum zapi_route_notify_owner note) |
786 | { | |
787 | return (route_notify_internal(dplane_ctx_get_dest(ctx), | |
788 | dplane_ctx_get_type(ctx), | |
789 | dplane_ctx_get_instance(ctx), | |
790 | dplane_ctx_get_vrf(ctx), | |
791 | dplane_ctx_get_table(ctx), | |
792 | note)); | |
86391e56 MS |
793 | } |
794 | ||
bf094f69 QY |
795 | void zsend_rule_notify_owner(struct zebra_pbr_rule *rule, |
796 | enum zapi_rule_notify_owner note) | |
797 | { | |
798 | struct listnode *node; | |
799 | struct zserv *client; | |
800 | struct stream *s; | |
801 | ||
802 | if (IS_ZEBRA_DEBUG_PACKET) | |
5e81f5dd | 803 | zlog_debug("%s: Notifying %u", __func__, rule->rule.unique); |
bf094f69 | 804 | |
161e9ab7 | 805 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
806 | if (rule->sock == client->sock) |
807 | break; | |
808 | } | |
809 | ||
810 | if (!client) | |
811 | return; | |
812 | ||
813 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
814 | ||
815 | zclient_create_header(s, ZEBRA_RULE_NOTIFY_OWNER, VRF_DEFAULT); | |
816 | stream_put(s, ¬e, sizeof(note)); | |
817 | stream_putl(s, rule->rule.seq); | |
818 | stream_putl(s, rule->rule.priority); | |
819 | stream_putl(s, rule->rule.unique); | |
b19d55d0 | 820 | stream_putl(s, rule->rule.ifindex); |
bf094f69 QY |
821 | |
822 | stream_putw_at(s, 0, stream_get_endp(s)); | |
823 | ||
21ccc0cf | 824 | zserv_send_message(client, s); |
bf094f69 QY |
825 | } |
826 | ||
827 | void zsend_ipset_notify_owner(struct zebra_pbr_ipset *ipset, | |
828 | enum zapi_ipset_notify_owner note) | |
829 | { | |
830 | struct listnode *node; | |
831 | struct zserv *client; | |
832 | struct stream *s; | |
833 | ||
834 | if (IS_ZEBRA_DEBUG_PACKET) | |
5e81f5dd | 835 | zlog_debug("%s: Notifying %u", __func__, ipset->unique); |
bf094f69 | 836 | |
161e9ab7 | 837 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
838 | if (ipset->sock == client->sock) |
839 | break; | |
840 | } | |
841 | ||
842 | if (!client) | |
843 | return; | |
844 | ||
845 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
846 | ||
847 | zclient_create_header(s, ZEBRA_IPSET_NOTIFY_OWNER, VRF_DEFAULT); | |
848 | stream_put(s, ¬e, sizeof(note)); | |
849 | stream_putl(s, ipset->unique); | |
850 | stream_put(s, ipset->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
851 | stream_putw_at(s, 0, stream_get_endp(s)); | |
852 | ||
21ccc0cf | 853 | zserv_send_message(client, s); |
bf094f69 QY |
854 | } |
855 | ||
856 | void zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry *ipset, | |
857 | enum zapi_ipset_entry_notify_owner note) | |
858 | { | |
859 | struct listnode *node; | |
860 | struct zserv *client; | |
861 | struct stream *s; | |
862 | ||
863 | if (IS_ZEBRA_DEBUG_PACKET) | |
5e81f5dd | 864 | zlog_debug("%s: Notifying %u", __func__, ipset->unique); |
bf094f69 | 865 | |
161e9ab7 | 866 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
867 | if (ipset->sock == client->sock) |
868 | break; | |
869 | } | |
870 | ||
871 | if (!client) | |
872 | return; | |
873 | ||
874 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
875 | ||
876 | zclient_create_header(s, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER, VRF_DEFAULT); | |
877 | stream_put(s, ¬e, sizeof(note)); | |
878 | stream_putl(s, ipset->unique); | |
879 | stream_put(s, ipset->backpointer->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
880 | stream_putw_at(s, 0, stream_get_endp(s)); | |
881 | ||
21ccc0cf | 882 | zserv_send_message(client, s); |
bf094f69 QY |
883 | } |
884 | ||
885 | void zsend_iptable_notify_owner(struct zebra_pbr_iptable *iptable, | |
886 | enum zapi_iptable_notify_owner note) | |
887 | { | |
888 | struct listnode *node; | |
889 | struct zserv *client; | |
890 | struct stream *s; | |
891 | ||
892 | if (IS_ZEBRA_DEBUG_PACKET) | |
5e81f5dd | 893 | zlog_debug("%s: Notifying %u", __func__, iptable->unique); |
bf094f69 | 894 | |
161e9ab7 | 895 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
896 | if (iptable->sock == client->sock) |
897 | break; | |
898 | } | |
899 | ||
900 | if (!client) | |
901 | return; | |
902 | ||
903 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
904 | ||
905 | zclient_create_header(s, ZEBRA_IPTABLE_NOTIFY_OWNER, VRF_DEFAULT); | |
906 | stream_put(s, ¬e, sizeof(note)); | |
907 | stream_putl(s, iptable->unique); | |
908 | stream_putw_at(s, 0, stream_get_endp(s)); | |
909 | ||
21ccc0cf | 910 | zserv_send_message(client, s); |
bf094f69 QY |
911 | } |
912 | ||
913 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ | |
914 | int zsend_router_id_update(struct zserv *client, struct prefix *p, | |
915 | vrf_id_t vrf_id) | |
916 | { | |
917 | int blen; | |
918 | ||
919 | /* Check this client need interface information. */ | |
920 | if (!vrf_bitmap_check(client->ridinfo, vrf_id)) | |
921 | return 0; | |
922 | ||
923 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
924 | ||
925 | /* Message type. */ | |
926 | zclient_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); | |
927 | ||
928 | /* Prefix information. */ | |
929 | stream_putc(s, p->family); | |
930 | blen = prefix_blen(p); | |
931 | stream_put(s, &p->u.prefix, blen); | |
932 | stream_putc(s, p->prefixlen); | |
933 | ||
934 | /* Write packet size. */ | |
935 | stream_putw_at(s, 0, stream_get_endp(s)); | |
936 | ||
21ccc0cf | 937 | return zserv_send_message(client, s); |
bf094f69 QY |
938 | } |
939 | ||
940 | /* | |
941 | * Function used by Zebra to send a PW status update to LDP daemon | |
942 | */ | |
943 | int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) | |
944 | { | |
945 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
946 | ||
947 | zclient_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); | |
948 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
949 | stream_putl(s, pw->ifindex); | |
950 | stream_putl(s, pw->status); | |
951 | ||
952 | /* Put length at the first point of the stream. */ | |
953 | stream_putw_at(s, 0, stream_get_endp(s)); | |
954 | ||
21ccc0cf | 955 | return zserv_send_message(client, s); |
bf094f69 QY |
956 | } |
957 | ||
958 | /* Send response to a get label chunk request to client */ | |
e11d7c96 | 959 | int zsend_assign_label_chunk_response(struct zserv *client, vrf_id_t vrf_id, |
e11d7c96 | 960 | struct label_manager_chunk *lmc) |
bf094f69 QY |
961 | { |
962 | int ret; | |
963 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
964 | ||
965 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); | |
f004f7c3 | 966 | /* proto */ |
4cebdb9b | 967 | stream_putc(s, client->proto); |
f004f7c3 | 968 | /* instance */ |
4cebdb9b | 969 | stream_putw(s, client->instance); |
bf094f69 QY |
970 | |
971 | if (lmc) { | |
972 | /* keep */ | |
973 | stream_putc(s, lmc->keep); | |
974 | /* start and end labels */ | |
975 | stream_putl(s, lmc->start); | |
976 | stream_putl(s, lmc->end); | |
977 | } | |
978 | ||
979 | /* Write packet size. */ | |
980 | stream_putw_at(s, 0, stream_get_endp(s)); | |
981 | ||
982 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
983 | stream_free(s); | |
984 | return ret; | |
985 | } | |
986 | ||
987 | /* Send response to a label manager connect request to client */ | |
e11d7c96 EDP |
988 | int zsend_label_manager_connect_response(struct zserv *client, vrf_id_t vrf_id, |
989 | unsigned short result) | |
bf094f69 QY |
990 | { |
991 | int ret; | |
992 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
993 | ||
994 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); | |
995 | ||
5dffb0e9 FR |
996 | /* proto */ |
997 | stream_putc(s, client->proto); | |
998 | ||
999 | /* instance */ | |
1000 | stream_putw(s, client->instance); | |
1001 | ||
bf094f69 QY |
1002 | /* result */ |
1003 | stream_putc(s, result); | |
1004 | ||
1005 | /* Write packet size. */ | |
1006 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1007 | ||
1008 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
1009 | stream_free(s); | |
1010 | ||
1011 | return ret; | |
1012 | } | |
1013 | ||
1014 | /* Send response to a get table chunk request to client */ | |
1015 | static int zsend_assign_table_chunk_response(struct zserv *client, | |
1016 | vrf_id_t vrf_id, | |
1017 | struct table_manager_chunk *tmc) | |
1018 | { | |
1019 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1020 | ||
1021 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, vrf_id); | |
1022 | ||
1023 | if (tmc) { | |
1024 | /* start and end labels */ | |
1025 | stream_putl(s, tmc->start); | |
1026 | stream_putl(s, tmc->end); | |
1027 | } | |
1028 | ||
1029 | /* Write packet size. */ | |
1030 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1031 | ||
21ccc0cf | 1032 | return zserv_send_message(client, s); |
bf094f69 QY |
1033 | } |
1034 | ||
1035 | static int zsend_table_manager_connect_response(struct zserv *client, | |
1036 | vrf_id_t vrf_id, | |
1037 | uint16_t result) | |
1038 | { | |
1039 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1040 | ||
1041 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, vrf_id); | |
1042 | ||
1043 | /* result */ | |
1044 | stream_putc(s, result); | |
1045 | ||
1046 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1047 | ||
21ccc0cf | 1048 | return zserv_send_message(client, s); |
bf094f69 QY |
1049 | } |
1050 | ||
1051 | /* Inbound message handling ------------------------------------------------ */ | |
1052 | ||
2b64873d | 1053 | const int cmd2type[] = { |
bf094f69 QY |
1054 | [ZEBRA_NEXTHOP_REGISTER] = RNH_NEXTHOP_TYPE, |
1055 | [ZEBRA_NEXTHOP_UNREGISTER] = RNH_NEXTHOP_TYPE, | |
1056 | [ZEBRA_IMPORT_ROUTE_REGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1057 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1058 | }; | |
1059 | ||
1060 | /* Nexthop register */ | |
1061 | static void zread_rnh_register(ZAPI_HANDLER_ARGS) | |
1062 | { | |
1063 | struct rnh *rnh; | |
1064 | struct stream *s; | |
1065 | struct prefix p; | |
1066 | unsigned short l = 0; | |
1067 | uint8_t flags = 0; | |
1068 | uint16_t type = cmd2type[hdr->command]; | |
1d30d1f4 | 1069 | bool exist; |
906b54dd DS |
1070 | bool flag_changed = false; |
1071 | uint8_t orig_flags; | |
bf094f69 QY |
1072 | |
1073 | if (IS_ZEBRA_DEBUG_NHT) | |
1074 | zlog_debug( | |
63efca0e | 1075 | "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u", |
bf094f69 QY |
1076 | zebra_route_string(client->proto), hdr->length, |
1077 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route", | |
1078 | zvrf->vrf->vrf_id); | |
1079 | ||
1080 | s = msg; | |
1081 | ||
1082 | client->nh_reg_time = monotime(NULL); | |
1083 | ||
1084 | while (l < hdr->length) { | |
1085 | STREAM_GETC(s, flags); | |
1086 | STREAM_GETW(s, p.family); | |
1087 | STREAM_GETC(s, p.prefixlen); | |
1088 | l += 4; | |
1089 | if (p.family == AF_INET) { | |
ab5990d8 | 1090 | client->v4_nh_watch_add_cnt++; |
bf094f69 | 1091 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1092 | zlog_debug( |
bf094f69 | 1093 | "%s: Specified prefix hdr->length %d is too large for a v4 address", |
15569c58 | 1094 | __func__, p.prefixlen); |
bf094f69 QY |
1095 | return; |
1096 | } | |
1097 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1098 | l += IPV4_MAX_BYTELEN; | |
1099 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1100 | client->v6_nh_watch_add_cnt++; |
bf094f69 | 1101 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1102 | zlog_debug( |
bf094f69 | 1103 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
15569c58 | 1104 | __func__, p.prefixlen); |
bf094f69 QY |
1105 | return; |
1106 | } | |
1107 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1108 | l += IPV6_MAX_BYTELEN; | |
1109 | } else { | |
af4c2728 | 1110 | flog_err( |
e914ccbe | 1111 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1112 | "rnh_register: Received unknown family type %d\n", |
1113 | p.family); | |
1114 | return; | |
1115 | } | |
1d30d1f4 DS |
1116 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type, &exist); |
1117 | if (!rnh) | |
1118 | return; | |
1119 | ||
906b54dd | 1120 | orig_flags = rnh->flags; |
bf094f69 QY |
1121 | if (type == RNH_NEXTHOP_TYPE) { |
1122 | if (flags | |
1123 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1124 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1125 | else if (!flags | |
1126 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1127 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1128 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
1129 | if (flags | |
1130 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
1131 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1132 | else if (!flags | |
1133 | && CHECK_FLAG(rnh->flags, | |
1134 | ZEBRA_NHT_EXACT_MATCH)) | |
1135 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1136 | } | |
1137 | ||
906b54dd DS |
1138 | if (orig_flags != rnh->flags) |
1139 | flag_changed = true; | |
1140 | ||
bf094f69 | 1141 | /* Anything not AF_INET/INET6 has been filtered out above */ |
906b54dd | 1142 | if (!exist || flag_changed) |
73bf60a0 RW |
1143 | zebra_evaluate_rnh(zvrf, family2afi(p.family), 1, type, |
1144 | &p); | |
dd25a6b3 DS |
1145 | |
1146 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
bf094f69 QY |
1147 | } |
1148 | ||
1149 | stream_failure: | |
1150 | return; | |
1151 | } | |
1152 | ||
1153 | /* Nexthop register */ | |
1154 | static void zread_rnh_unregister(ZAPI_HANDLER_ARGS) | |
1155 | { | |
1156 | struct rnh *rnh; | |
1157 | struct stream *s; | |
1158 | struct prefix p; | |
1159 | unsigned short l = 0; | |
1160 | uint16_t type = cmd2type[hdr->command]; | |
1161 | ||
1162 | if (IS_ZEBRA_DEBUG_NHT) | |
1163 | zlog_debug( | |
63efca0e | 1164 | "rnh_unregister msg from client %s: hdr->length=%d vrf: %u", |
bf094f69 QY |
1165 | zebra_route_string(client->proto), hdr->length, |
1166 | zvrf->vrf->vrf_id); | |
1167 | ||
1168 | s = msg; | |
1169 | ||
1170 | while (l < hdr->length) { | |
1171 | uint8_t flags; | |
1172 | ||
1173 | STREAM_GETC(s, flags); | |
1174 | if (flags != 0) | |
1175 | goto stream_failure; | |
1176 | ||
1177 | STREAM_GETW(s, p.family); | |
1178 | STREAM_GETC(s, p.prefixlen); | |
1179 | l += 4; | |
1180 | if (p.family == AF_INET) { | |
ab5990d8 | 1181 | client->v4_nh_watch_rem_cnt++; |
bf094f69 | 1182 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1183 | zlog_debug( |
bf094f69 | 1184 | "%s: Specified prefix hdr->length %d is to large for a v4 address", |
15569c58 | 1185 | __func__, p.prefixlen); |
bf094f69 QY |
1186 | return; |
1187 | } | |
1188 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1189 | l += IPV4_MAX_BYTELEN; | |
1190 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1191 | client->v6_nh_watch_rem_cnt++; |
bf094f69 | 1192 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1193 | zlog_debug( |
bf094f69 | 1194 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
15569c58 | 1195 | __func__, p.prefixlen); |
bf094f69 QY |
1196 | return; |
1197 | } | |
1198 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1199 | l += IPV6_MAX_BYTELEN; | |
1200 | } else { | |
af4c2728 | 1201 | flog_err( |
e914ccbe | 1202 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1203 | "rnh_register: Received unknown family type %d\n", |
1204 | p.family); | |
1205 | return; | |
1206 | } | |
1207 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
1208 | if (rnh) { | |
1209 | client->nh_dereg_time = monotime(NULL); | |
1210 | zebra_remove_rnh_client(rnh, client, type); | |
1211 | } | |
1212 | } | |
1213 | stream_failure: | |
1214 | return; | |
1215 | } | |
1216 | ||
1217 | #define ZEBRA_MIN_FEC_LENGTH 5 | |
1218 | ||
1219 | /* FEC register */ | |
1220 | static void zread_fec_register(ZAPI_HANDLER_ARGS) | |
1221 | { | |
1222 | struct stream *s; | |
1223 | unsigned short l = 0; | |
1224 | struct prefix p; | |
1225 | uint16_t flags; | |
57592a53 | 1226 | uint32_t label = MPLS_INVALID_LABEL; |
bf094f69 QY |
1227 | uint32_t label_index = MPLS_INVALID_LABEL_INDEX; |
1228 | ||
1229 | s = msg; | |
1230 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1231 | if (!zvrf) | |
8b1766b1 | 1232 | return; |
bf094f69 QY |
1233 | |
1234 | /* | |
1235 | * The minimum amount of data that can be sent for one fec | |
1236 | * registration | |
1237 | */ | |
1238 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1239 | flog_err( |
e914ccbe | 1240 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1241 | "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode", |
1242 | hdr->length); | |
1243 | return; | |
1244 | } | |
1245 | ||
1246 | while (l < hdr->length) { | |
1247 | STREAM_GETW(s, flags); | |
1248 | memset(&p, 0, sizeof(p)); | |
1249 | STREAM_GETW(s, p.family); | |
1250 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1251 | flog_err( |
e914ccbe | 1252 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1253 | "fec_register: Received unknown family type %d\n", |
1254 | p.family); | |
1255 | return; | |
1256 | } | |
1257 | STREAM_GETC(s, p.prefixlen); | |
1258 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1259 | || (p.family == AF_INET6 | |
1260 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1261 | zlog_debug( |
bf094f69 | 1262 | "%s: Specified prefix hdr->length: %d is to long for %d", |
15569c58 | 1263 | __func__, p.prefixlen, p.family); |
bf094f69 QY |
1264 | return; |
1265 | } | |
1266 | l += 5; | |
1267 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1268 | l += PSIZE(p.prefixlen); | |
57592a53 AD |
1269 | if (flags & ZEBRA_FEC_REGISTER_LABEL) { |
1270 | STREAM_GETL(s, label); | |
1271 | l += 4; | |
1272 | } else if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { | |
bf094f69 QY |
1273 | STREAM_GETL(s, label_index); |
1274 | l += 4; | |
57592a53 AD |
1275 | } |
1276 | ||
1277 | zebra_mpls_fec_register(zvrf, &p, label, label_index, client); | |
bf094f69 QY |
1278 | } |
1279 | ||
1280 | stream_failure: | |
1281 | return; | |
1282 | } | |
1283 | ||
1284 | /* FEC unregister */ | |
1285 | static void zread_fec_unregister(ZAPI_HANDLER_ARGS) | |
1286 | { | |
1287 | struct stream *s; | |
1288 | unsigned short l = 0; | |
1289 | struct prefix p; | |
1290 | uint16_t flags; | |
1291 | ||
1292 | s = msg; | |
1293 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1294 | if (!zvrf) | |
8b1766b1 | 1295 | return; |
bf094f69 QY |
1296 | |
1297 | /* | |
1298 | * The minimum amount of data that can be sent for one | |
1299 | * fec unregistration | |
1300 | */ | |
1301 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1302 | flog_err( |
e914ccbe | 1303 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1304 | "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode", |
1305 | hdr->length); | |
1306 | return; | |
1307 | } | |
1308 | ||
1309 | while (l < hdr->length) { | |
1310 | STREAM_GETW(s, flags); | |
1311 | if (flags != 0) | |
1312 | goto stream_failure; | |
1313 | ||
1314 | memset(&p, 0, sizeof(p)); | |
1315 | STREAM_GETW(s, p.family); | |
1316 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1317 | flog_err( |
e914ccbe | 1318 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1319 | "fec_unregister: Received unknown family type %d\n", |
1320 | p.family); | |
1321 | return; | |
1322 | } | |
1323 | STREAM_GETC(s, p.prefixlen); | |
1324 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1325 | || (p.family == AF_INET6 | |
1326 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1327 | zlog_debug( |
bf094f69 | 1328 | "%s: Received prefix hdr->length %d which is greater than %d can support", |
15569c58 | 1329 | __func__, p.prefixlen, p.family); |
bf094f69 QY |
1330 | return; |
1331 | } | |
1332 | l += 5; | |
1333 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1334 | l += PSIZE(p.prefixlen); | |
1335 | zebra_mpls_fec_unregister(zvrf, &p, client); | |
1336 | } | |
1337 | ||
1338 | stream_failure: | |
1339 | return; | |
1340 | } | |
1341 | ||
1342 | ||
1343 | /* | |
1344 | * Register zebra server interface information. | |
1345 | * Send current all interface and address information. | |
1346 | */ | |
1347 | static void zread_interface_add(ZAPI_HANDLER_ARGS) | |
1348 | { | |
1349 | struct vrf *vrf; | |
1350 | struct interface *ifp; | |
1351 | ||
bf094f69 QY |
1352 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { |
1353 | FOR_ALL_INTERFACES (vrf, ifp) { | |
1354 | /* Skip pseudo interface. */ | |
1355 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1356 | continue; | |
1357 | ||
1358 | zsend_interface_add(client, ifp); | |
27ecbea3 | 1359 | zsend_interface_link_params(client, ifp); |
bf094f69 QY |
1360 | zsend_interface_addresses(client, ifp); |
1361 | } | |
1362 | } | |
1363 | } | |
1364 | ||
1365 | /* Unregister zebra server interface information. */ | |
1366 | static void zread_interface_delete(ZAPI_HANDLER_ARGS) | |
1367 | { | |
bf094f69 QY |
1368 | } |
1369 | ||
c3bd894e QY |
1370 | /* |
1371 | * Handle message requesting interface be set up or down. | |
1372 | */ | |
1373 | static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS) | |
1374 | { | |
1375 | ifindex_t ifindex; | |
1376 | struct interface *ifp; | |
1377 | char down; | |
1378 | ||
1379 | STREAM_GETL(msg, ifindex); | |
1380 | STREAM_GETC(msg, down); | |
1381 | ||
1382 | /* set ifdown */ | |
1383 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT), ifindex); | |
c3bd894e | 1384 | |
65dc7dd3 QY |
1385 | if (ifp) { |
1386 | zlog_info("Setting interface %s (%u): protodown %s", ifp->name, | |
1387 | ifindex, down ? "on" : "off"); | |
1388 | zebra_if_set_protodown(ifp, down); | |
1389 | } else { | |
1390 | zlog_warn( | |
1391 | "Cannot set protodown %s for interface %u; does not exist", | |
1392 | down ? "on" : "off", ifindex); | |
1393 | } | |
1394 | ||
c3bd894e QY |
1395 | |
1396 | stream_failure: | |
1397 | return; | |
1398 | } | |
1399 | ||
1400 | ||
bf094f69 QY |
1401 | void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, |
1402 | const unsigned int nexthop_num) | |
1403 | { | |
b3f2b590 | 1404 | if (nexthop_num > zrouter.multipath_num) { |
bf094f69 | 1405 | char buff[PREFIX2STR_BUFFER]; |
8b1766b1 | 1406 | |
bf094f69 | 1407 | prefix2str(p, buff, sizeof(buff)); |
9df414fe | 1408 | flog_warn( |
e914ccbe | 1409 | EC_ZEBRA_MORE_NH_THAN_MULTIPATH, |
bf094f69 | 1410 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", |
b3f2b590 | 1411 | caller, buff, nexthop_num, zrouter.multipath_num); |
bf094f69 QY |
1412 | } |
1413 | } | |
1414 | ||
62e46303 MS |
1415 | /* |
1416 | * Create a new nexthop based on a zapi nexthop. | |
1417 | */ | |
1418 | static struct nexthop *nexthop_from_zapi(struct route_entry *re, | |
1419 | const struct zapi_nexthop *api_nh, | |
1420 | const struct zapi_route *api) | |
1421 | { | |
1422 | struct nexthop *nexthop = NULL; | |
1423 | struct ipaddr vtep_ip; | |
1424 | struct interface *ifp; | |
1425 | char nhbuf[INET6_ADDRSTRLEN] = ""; | |
1426 | ||
62e46303 MS |
1427 | switch (api_nh->type) { |
1428 | case NEXTHOP_TYPE_IFINDEX: | |
1429 | nexthop = nexthop_from_ifindex(api_nh->ifindex, api_nh->vrf_id); | |
1430 | break; | |
1431 | case NEXTHOP_TYPE_IPV4: | |
1432 | if (IS_ZEBRA_DEBUG_RECV) { | |
1433 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1434 | sizeof(nhbuf)); | |
1435 | zlog_debug("%s: nh=%s, vrf_id=%d", __func__, | |
1436 | nhbuf, api_nh->vrf_id); | |
1437 | } | |
1438 | nexthop = nexthop_from_ipv4(&api_nh->gate.ipv4, NULL, | |
1439 | api_nh->vrf_id); | |
1440 | break; | |
1441 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1442 | if (IS_ZEBRA_DEBUG_RECV) { | |
1443 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1444 | sizeof(nhbuf)); | |
1445 | zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d", | |
1446 | __func__, nhbuf, api_nh->vrf_id, | |
1447 | api_nh->ifindex); | |
1448 | } | |
1449 | ||
1450 | nexthop = nexthop_from_ipv4_ifindex( | |
1451 | &api_nh->gate.ipv4, NULL, api_nh->ifindex, | |
1452 | api_nh->vrf_id); | |
1453 | ||
62e46303 MS |
1454 | /* Special handling for IPv4 routes sourced from EVPN: |
1455 | * the nexthop and associated MAC need to be installed. | |
1456 | */ | |
1457 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1458 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
1459 | vtep_ip.ipa_type = IPADDR_V4; | |
1460 | memcpy(&(vtep_ip.ipaddr_v4), &(api_nh->gate.ipv4), | |
1461 | sizeof(struct in_addr)); | |
1462 | zebra_vxlan_evpn_vrf_route_add( | |
1463 | api_nh->vrf_id, &api_nh->rmac, | |
1464 | &vtep_ip, &api->prefix); | |
1465 | } | |
1466 | break; | |
1467 | case NEXTHOP_TYPE_IPV6: | |
1468 | if (IS_ZEBRA_DEBUG_RECV) { | |
1469 | inet_ntop(AF_INET6, &api_nh->gate.ipv6, nhbuf, | |
1470 | sizeof(nhbuf)); | |
1471 | zlog_debug("%s: nh=%s, vrf_id=%d", __func__, | |
1472 | nhbuf, api_nh->vrf_id); | |
1473 | } | |
1474 | nexthop = nexthop_from_ipv6(&api_nh->gate.ipv6, api_nh->vrf_id); | |
1475 | break; | |
1476 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1477 | if (IS_ZEBRA_DEBUG_RECV) { | |
1478 | inet_ntop(AF_INET6, &api_nh->gate.ipv6, 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 | nexthop = nexthop_from_ipv6_ifindex(&api_nh->gate.ipv6, | |
1485 | api_nh->ifindex, | |
1486 | api_nh->vrf_id); | |
1487 | ||
1488 | /* Special handling for IPv6 routes sourced from EVPN: | |
1489 | * the nexthop and associated MAC need to be installed. | |
1490 | */ | |
1491 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1492 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
1493 | vtep_ip.ipa_type = IPADDR_V6; | |
1494 | memcpy(&vtep_ip.ipaddr_v6, &(api_nh->gate.ipv6), | |
1495 | sizeof(struct in6_addr)); | |
1496 | zebra_vxlan_evpn_vrf_route_add( | |
1497 | api_nh->vrf_id, &api_nh->rmac, | |
1498 | &vtep_ip, &api->prefix); | |
1499 | } | |
1500 | break; | |
1501 | case NEXTHOP_TYPE_BLACKHOLE: | |
1502 | if (IS_ZEBRA_DEBUG_RECV) | |
1503 | zlog_debug("%s: nh blackhole %d", | |
1504 | __func__, api_nh->bh_type); | |
1505 | ||
1506 | nexthop = nexthop_from_blackhole(api_nh->bh_type); | |
1507 | break; | |
1508 | } | |
1509 | ||
1510 | /* Return early if we couldn't process the zapi nexthop */ | |
1511 | if (nexthop == NULL) { | |
1512 | goto done; | |
1513 | } | |
1514 | ||
12b4d77b | 1515 | /* Mark nexthop as onlink either if client has explicitly told us |
1516 | * to or if the nexthop is on an 'unnumbered' interface. | |
1517 | */ | |
62e46303 MS |
1518 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK)) |
1519 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_ONLINK); | |
12b4d77b | 1520 | else if (api_nh->type == NEXTHOP_TYPE_IPV4_IFINDEX) { |
1521 | ifp = if_lookup_by_index(api_nh->ifindex, api_nh->vrf_id); | |
1522 | if (ifp && connected_is_unnumbered(ifp)) | |
1523 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_ONLINK); | |
1524 | } | |
62e46303 MS |
1525 | |
1526 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_WEIGHT)) | |
1527 | nexthop->weight = api_nh->weight; | |
1528 | ||
1d48702e MS |
1529 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP)) { |
1530 | if (api_nh->backup_idx < api->backup_nexthop_num) { | |
1531 | /* Capture backup info */ | |
1532 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_HAS_BACKUP); | |
1533 | nexthop->backup_idx = api_nh->backup_idx; | |
1534 | } else { | |
1535 | /* Warn about invalid backup index */ | |
1536 | if (IS_ZEBRA_DEBUG_RECV || IS_ZEBRA_DEBUG_EVENT) | |
1537 | zlog_debug("%s: invalid backup nh idx %d", | |
1538 | __func__, api_nh->backup_idx); | |
1539 | } | |
1540 | } | |
62e46303 MS |
1541 | done: |
1542 | return nexthop; | |
1543 | } | |
1544 | ||
bf094f69 QY |
1545 | static void zread_route_add(ZAPI_HANDLER_ARGS) |
1546 | { | |
1547 | struct stream *s; | |
1548 | struct zapi_route api; | |
1549 | struct zapi_nexthop *api_nh; | |
1550 | afi_t afi; | |
1551 | struct prefix_ipv6 *src_p = NULL; | |
1552 | struct route_entry *re; | |
62e46303 | 1553 | struct nexthop *nexthop = NULL, *last_nh; |
0eb97b86 | 1554 | struct nexthop_group *ng = NULL; |
1d48702e | 1555 | struct nhg_backup_info *bnhg = NULL; |
bf094f69 | 1556 | int i, ret; |
946de1b9 | 1557 | vrf_id_t vrf_id; |
1d48702e MS |
1558 | struct nhg_hash_entry nhe; |
1559 | enum lsp_types_t label_type; | |
1560 | char nhbuf[NEXTHOP_STRLEN]; | |
1561 | char labelbuf[MPLS_LABEL_STRLEN]; | |
bf094f69 QY |
1562 | |
1563 | s = msg; | |
1564 | if (zapi_route_decode(s, &api) < 0) { | |
1565 | if (IS_ZEBRA_DEBUG_RECV) | |
1566 | zlog_debug("%s: Unable to decode zapi_route sent", | |
15569c58 | 1567 | __func__); |
bf094f69 QY |
1568 | return; |
1569 | } | |
1570 | ||
1571 | if (IS_ZEBRA_DEBUG_RECV) { | |
1572 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 1573 | |
bf094f69 | 1574 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
018c6488 MS |
1575 | zlog_debug("%s: p=%s, msg flags=0x%x, flags=0x%x", |
1576 | __func__, buf_prefix, (int)api.message, api.flags); | |
bf094f69 QY |
1577 | } |
1578 | ||
1579 | /* Allocate new route. */ | |
1580 | vrf_id = zvrf_id(zvrf); | |
1581 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1582 | re->type = api.type; | |
1583 | re->instance = api.instance; | |
1584 | re->flags = api.flags; | |
98572489 | 1585 | re->uptime = monotime(NULL); |
bf094f69 | 1586 | re->vrf_id = vrf_id; |
6b468511 | 1587 | |
60ca3cc2 | 1588 | if (api.tableid) |
bf094f69 QY |
1589 | re->table = api.tableid; |
1590 | else | |
1591 | re->table = zvrf->table_id; | |
1592 | ||
7fcb24bb RW |
1593 | if (!CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP) |
1594 | || api.nexthop_num == 0) { | |
7fcb24bb | 1595 | flog_warn(EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS, |
8ba70c4e DS |
1596 | "%s: received a route without nexthops for prefix %pFX from client %s", |
1597 | __func__, &api.prefix, | |
1598 | zebra_route_string(client->proto)); | |
6b468511 | 1599 | |
7fcb24bb RW |
1600 | XFREE(MTYPE_RE, re); |
1601 | return; | |
1602 | } | |
1603 | ||
62e46303 MS |
1604 | /* Report misuse of the backup flag */ |
1605 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_BACKUP_NEXTHOPS) && | |
1606 | api.backup_nexthop_num == 0) { | |
1607 | if (IS_ZEBRA_DEBUG_RECV || IS_ZEBRA_DEBUG_EVENT) | |
1608 | zlog_debug("%s: client %s: BACKUP flag set but no backup nexthops, prefix %pFX", | |
1609 | __func__, | |
1610 | zebra_route_string(client->proto), &api.prefix); | |
1611 | } | |
1612 | ||
0eb97b86 MS |
1613 | /* Use temporary list of nexthops */ |
1614 | ng = nexthop_group_new(); | |
1615 | ||
bf094f69 QY |
1616 | /* |
1617 | * TBD should _all_ of the nexthop add operations use | |
1618 | * api_nh->vrf_id instead of re->vrf_id ? I only changed | |
1619 | * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6. | |
1620 | */ | |
7fcb24bb RW |
1621 | for (i = 0; i < api.nexthop_num; i++) { |
1622 | api_nh = &api.nexthops[i]; | |
7fcb24bb | 1623 | |
62e46303 MS |
1624 | /* Convert zapi nexthop */ |
1625 | nexthop = nexthop_from_zapi(re, api_nh, &api); | |
1626 | if (!nexthop) { | |
1627 | flog_warn( | |
1628 | EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
1629 | "%s: Nexthops Specified: %d but we failed to properly create one", | |
1630 | __func__, api.nexthop_num); | |
1631 | nexthop_group_delete(&ng); | |
1632 | XFREE(MTYPE_RE, re); | |
1633 | return; | |
1634 | } | |
7fcb24bb | 1635 | |
62e46303 MS |
1636 | /* MPLS labels for BGP-LU or Segment Routing */ |
1637 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL) | |
1638 | && api_nh->type != NEXTHOP_TYPE_IFINDEX | |
1639 | && api_nh->type != NEXTHOP_TYPE_BLACKHOLE | |
1640 | && api_nh->label_num > 0) { | |
7fcb24bb | 1641 | |
62e46303 | 1642 | label_type = lsp_type_from_re_type(client->proto); |
62e46303 MS |
1643 | nexthop_add_labels(nexthop, label_type, |
1644 | api_nh->label_num, | |
1645 | &api_nh->labels[0]); | |
bf094f69 | 1646 | } |
bf094f69 | 1647 | |
1d48702e MS |
1648 | if (IS_ZEBRA_DEBUG_RECV) { |
1649 | labelbuf[0] = '\0'; | |
1650 | nhbuf[0] = '\0'; | |
1651 | ||
1652 | nexthop2str(nexthop, nhbuf, sizeof(nhbuf)); | |
1653 | ||
1654 | if (nexthop->nh_label && | |
1655 | nexthop->nh_label->num_labels > 0) { | |
1656 | mpls_label2str(nexthop->nh_label->num_labels, | |
1657 | nexthop->nh_label->label, | |
1658 | labelbuf, sizeof(labelbuf), | |
1659 | false); | |
1660 | } | |
1661 | ||
1662 | zlog_debug("%s: nh=%s, vrf_id=%d %s", | |
1663 | __func__, nhbuf, api_nh->vrf_id, labelbuf); | |
1664 | } | |
1665 | ||
1666 | /* Add new nexthop to temporary list. This list is | |
1667 | * canonicalized - sorted - so that it can be hashed later | |
1668 | * in route processing. We expect that the sender has sent | |
1669 | * the list sorted, and the zapi client api attempts to enforce | |
1670 | * that, so this should be inexpensive - but it is necessary | |
1671 | * to support shared nexthop-groups. | |
1672 | */ | |
62e46303 | 1673 | nexthop_group_add_sorted(ng, nexthop); |
62e46303 MS |
1674 | } |
1675 | ||
1676 | /* Allocate temporary list of backup nexthops, if necessary */ | |
1677 | if (api.backup_nexthop_num > 0) { | |
1d48702e MS |
1678 | if (IS_ZEBRA_DEBUG_RECV) |
1679 | zlog_debug("%s: adding %d backup nexthops", | |
1680 | __func__, api.backup_nexthop_num); | |
1681 | ||
1682 | bnhg = zebra_nhg_backup_alloc(); | |
62e46303 MS |
1683 | nexthop = NULL; |
1684 | last_nh = NULL; | |
1685 | } | |
1686 | ||
1687 | /* Copy backup nexthops also, if present */ | |
1688 | for (i = 0; i < api.backup_nexthop_num; i++) { | |
1689 | api_nh = &api.backup_nexthops[i]; | |
1690 | ||
1691 | /* Convert zapi backup nexthop */ | |
1692 | nexthop = nexthop_from_zapi(re, api_nh, &api); | |
7fcb24bb RW |
1693 | if (!nexthop) { |
1694 | flog_warn( | |
1695 | EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
62e46303 MS |
1696 | "%s: Backup Nexthops Specified: %d but we failed to properly create one", |
1697 | __func__, api.backup_nexthop_num); | |
0eb97b86 | 1698 | nexthop_group_delete(&ng); |
1d48702e | 1699 | zebra_nhg_backup_free(&bnhg); |
7fcb24bb RW |
1700 | XFREE(MTYPE_RE, re); |
1701 | return; | |
1702 | } | |
0eb97b86 | 1703 | |
1d48702e MS |
1704 | /* Backup nexthops can't have backups; that's not valid. */ |
1705 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_HAS_BACKUP)) { | |
1706 | if (IS_ZEBRA_DEBUG_RECV) { | |
1707 | nexthop2str(nexthop, nhbuf, sizeof(nhbuf)); | |
1708 | zlog_debug("%s: backup nh %s with BACKUP flag!", | |
1709 | __func__, nhbuf); | |
1710 | } | |
1711 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_HAS_BACKUP); | |
1712 | nexthop->backup_idx = 0; | |
1713 | } | |
1714 | ||
7fcb24bb | 1715 | /* MPLS labels for BGP-LU or Segment Routing */ |
68a02e06 | 1716 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL) |
7fcb24bb | 1717 | && api_nh->type != NEXTHOP_TYPE_IFINDEX |
62e46303 MS |
1718 | && api_nh->type != NEXTHOP_TYPE_BLACKHOLE |
1719 | && api_nh->label_num > 0) { | |
7fcb24bb RW |
1720 | |
1721 | label_type = lsp_type_from_re_type(client->proto); | |
7fcb24bb RW |
1722 | nexthop_add_labels(nexthop, label_type, |
1723 | api_nh->label_num, | |
1724 | &api_nh->labels[0]); | |
1725 | } | |
0eb97b86 | 1726 | |
1d48702e MS |
1727 | if (IS_ZEBRA_DEBUG_RECV) { |
1728 | labelbuf[0] = '\0'; | |
1729 | nhbuf[0] = '\0'; | |
1730 | ||
1731 | nexthop2str(nexthop, nhbuf, sizeof(nhbuf)); | |
1732 | ||
1733 | if (nexthop->nh_label && | |
1734 | nexthop->nh_label->num_labels > 0) { | |
1735 | mpls_label2str(nexthop->nh_label->num_labels, | |
1736 | nexthop->nh_label->label, | |
1737 | labelbuf, sizeof(labelbuf), | |
1738 | false); | |
1739 | } | |
1740 | ||
1741 | zlog_debug("%s: backup nh=%s, vrf_id=%d %s", | |
1742 | __func__, nhbuf, api_nh->vrf_id, labelbuf); | |
1743 | } | |
1744 | ||
1745 | /* Note that the order of the backup nexthops is significant, | |
1746 | * so we don't sort this list as we do the primary nexthops, | |
1747 | * we just append. | |
62e46303 | 1748 | */ |
1d48702e | 1749 | if (last_nh) |
62e46303 | 1750 | NEXTHOP_APPEND(last_nh, nexthop); |
1d48702e MS |
1751 | else |
1752 | bnhg->nhe->nhg.nexthop = nexthop; | |
62e46303 MS |
1753 | |
1754 | last_nh = nexthop; | |
7fcb24bb RW |
1755 | } |
1756 | ||
bf094f69 QY |
1757 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) |
1758 | re->distance = api.distance; | |
1759 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1760 | re->metric = api.metric; | |
1761 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1762 | re->tag = api.tag; | |
1763 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_MTU)) | |
1764 | re->mtu = api.mtu; | |
1765 | ||
1766 | afi = family2afi(api.prefix.family); | |
1767 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1768 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1769 | "%s: Received SRC Prefix but afi is not v6", |
15569c58 | 1770 | __func__); |
0eb97b86 | 1771 | nexthop_group_delete(&ng); |
1d48702e | 1772 | zebra_nhg_backup_free(&bnhg); |
bf094f69 QY |
1773 | XFREE(MTYPE_RE, re); |
1774 | return; | |
1775 | } | |
1776 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1777 | src_p = &api.src_prefix; | |
1778 | ||
5e7939a5 DS |
1779 | if (api.safi != SAFI_UNICAST && api.safi != SAFI_MULTICAST) { |
1780 | flog_warn(EC_LIB_ZAPI_MISSMATCH, | |
1781 | "%s: Received safi: %d but we can only accept UNICAST or MULTICAST", | |
1782 | __func__, api.safi); | |
1783 | nexthop_group_delete(&ng); | |
1d48702e | 1784 | zebra_nhg_backup_free(&bnhg); |
5e7939a5 DS |
1785 | XFREE(MTYPE_RE, re); |
1786 | return; | |
1787 | } | |
1d48702e | 1788 | |
377e29f7 MS |
1789 | /* Include backup info with the route. We use a temporary nhe here; |
1790 | * if this is a new/unknown nhe, a new copy will be allocated | |
1791 | * and stored. | |
1792 | */ | |
1793 | zebra_nhe_init(&nhe, afi, ng->nexthop); | |
1d48702e MS |
1794 | nhe.nhg.nexthop = ng->nexthop; |
1795 | nhe.backup_info = bnhg; | |
1796 | ret = rib_add_multipath_nhe(afi, api.safi, &api.prefix, src_p, | |
1797 | re, &nhe); | |
bf094f69 | 1798 | |
377e29f7 MS |
1799 | /* At this point, these allocations are not needed: 're' has been |
1800 | * retained or freed, and if 're' still exists, it is using | |
1801 | * a reference to a shared group object. | |
1802 | */ | |
1803 | nexthop_group_delete(&ng); | |
1804 | if (bnhg) | |
1805 | zebra_nhg_backup_free(&bnhg); | |
1806 | ||
bf094f69 QY |
1807 | /* Stats */ |
1808 | switch (api.prefix.family) { | |
1809 | case AF_INET: | |
1810 | if (ret > 0) | |
1811 | client->v4_route_add_cnt++; | |
1812 | else if (ret < 0) | |
1813 | client->v4_route_upd8_cnt++; | |
1814 | break; | |
1815 | case AF_INET6: | |
1816 | if (ret > 0) | |
1817 | client->v6_route_add_cnt++; | |
1818 | else if (ret < 0) | |
1819 | client->v6_route_upd8_cnt++; | |
1820 | break; | |
1821 | } | |
1822 | } | |
1823 | ||
1824 | static void zread_route_del(ZAPI_HANDLER_ARGS) | |
1825 | { | |
1826 | struct stream *s; | |
1827 | struct zapi_route api; | |
1828 | afi_t afi; | |
1829 | struct prefix_ipv6 *src_p = NULL; | |
1830 | uint32_t table_id; | |
1831 | ||
1832 | s = msg; | |
1833 | if (zapi_route_decode(s, &api) < 0) | |
1834 | return; | |
1835 | ||
1836 | afi = family2afi(api.prefix.family); | |
1837 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1838 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1839 | "%s: Received a src prefix while afi is not v6", |
15569c58 | 1840 | __func__); |
bf094f69 QY |
1841 | return; |
1842 | } | |
1843 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1844 | src_p = &api.src_prefix; | |
1845 | ||
60ca3cc2 | 1846 | if (api.tableid) |
bf094f69 QY |
1847 | table_id = api.tableid; |
1848 | else | |
1849 | table_id = zvrf->table_id; | |
1850 | ||
1851 | rib_delete(afi, api.safi, zvrf_id(zvrf), api.type, api.instance, | |
bc541126 | 1852 | api.flags, &api.prefix, src_p, NULL, 0, table_id, api.metric, |
40ecd8e4 | 1853 | api.distance, false); |
bf094f69 QY |
1854 | |
1855 | /* Stats */ | |
1856 | switch (api.prefix.family) { | |
1857 | case AF_INET: | |
1858 | client->v4_route_del_cnt++; | |
1859 | break; | |
1860 | case AF_INET6: | |
1861 | client->v6_route_del_cnt++; | |
1862 | break; | |
1863 | } | |
1864 | } | |
1865 | ||
bf094f69 QY |
1866 | /* MRIB Nexthop lookup for IPv4. */ |
1867 | static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS) | |
1868 | { | |
1869 | struct in_addr addr; | |
1870 | struct route_entry *re; | |
1871 | ||
1872 | STREAM_GET(&addr.s_addr, msg, IPV4_MAX_BYTELEN); | |
1873 | re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
1874 | zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); | |
1875 | ||
1876 | stream_failure: | |
1877 | return; | |
1878 | } | |
1879 | ||
bf094f69 QY |
1880 | /* Register zebra server router-id information. Send current router-id */ |
1881 | static void zread_router_id_add(ZAPI_HANDLER_ARGS) | |
1882 | { | |
1883 | struct prefix p; | |
1884 | ||
1885 | /* Router-id information is needed. */ | |
1886 | vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); | |
1887 | ||
1888 | router_id_get(&p, zvrf_id(zvrf)); | |
1889 | ||
1890 | zsend_router_id_update(client, &p, zvrf_id(zvrf)); | |
1891 | } | |
1892 | ||
1893 | /* Unregister zebra server router-id information. */ | |
1894 | static void zread_router_id_delete(ZAPI_HANDLER_ARGS) | |
1895 | { | |
1896 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1897 | } | |
1898 | ||
1899 | static void zsend_capabilities(struct zserv *client, struct zebra_vrf *zvrf) | |
1900 | { | |
1901 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1902 | ||
1903 | zclient_create_header(s, ZEBRA_CAPABILITIES, zvrf->vrf->vrf_id); | |
bb6b7f79 | 1904 | stream_putl(s, vrf_get_backend()); |
bf094f69 | 1905 | stream_putc(s, mpls_enabled); |
b3f2b590 | 1906 | stream_putl(s, zrouter.multipath_num); |
02c0866d | 1907 | stream_putc(s, zebra_mlag_get_role()); |
bf094f69 QY |
1908 | |
1909 | stream_putw_at(s, 0, stream_get_endp(s)); | |
21ccc0cf | 1910 | zserv_send_message(client, s); |
bf094f69 QY |
1911 | } |
1912 | ||
b120fe3b DS |
1913 | void zsend_capabilities_all_clients(void) |
1914 | { | |
1915 | struct listnode *node, *nnode; | |
1916 | struct zebra_vrf *zvrf; | |
1917 | struct zserv *client; | |
1918 | ||
1919 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1920 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { | |
17da84a4 KS |
1921 | /* Do not send unsolicited messages to synchronous clients. */ |
1922 | if (client->synchronous) | |
1923 | continue; | |
1924 | ||
b120fe3b DS |
1925 | zsend_capabilities(client, zvrf); |
1926 | } | |
1927 | } | |
1928 | ||
bf094f69 QY |
1929 | /* Tie up route-type and client->sock */ |
1930 | static void zread_hello(ZAPI_HANDLER_ARGS) | |
1931 | { | |
1932 | /* type of protocol (lib/zebra.h) */ | |
1933 | uint8_t proto; | |
1934 | unsigned short instance; | |
1935 | uint8_t notify; | |
17da84a4 | 1936 | uint8_t synchronous; |
4e0b5b31 | 1937 | uint32_t session_id; |
bf094f69 QY |
1938 | |
1939 | STREAM_GETC(msg, proto); | |
1940 | STREAM_GETW(msg, instance); | |
4e0b5b31 | 1941 | STREAM_GETL(msg, session_id); |
bf094f69 | 1942 | STREAM_GETC(msg, notify); |
17da84a4 | 1943 | STREAM_GETC(msg, synchronous); |
bf094f69 QY |
1944 | if (notify) |
1945 | client->notify_owner = true; | |
1946 | ||
17da84a4 KS |
1947 | if (synchronous) |
1948 | client->synchronous = true; | |
1949 | ||
bf094f69 | 1950 | /* accept only dynamic routing protocols */ |
f23cbcda | 1951 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_CONNECT)) { |
bf094f69 QY |
1952 | zlog_notice( |
1953 | "client %d says hello and bids fair to announce only %s routes vrf=%u", | |
1954 | client->sock, zebra_route_string(proto), | |
1955 | zvrf->vrf->vrf_id); | |
1956 | if (instance) | |
1957 | zlog_notice("client protocol instance %d", instance); | |
1958 | ||
1959 | client->proto = proto; | |
1960 | client->instance = instance; | |
4e0b5b31 | 1961 | client->session_id = session_id; |
6f4aee61 S |
1962 | |
1963 | /* Graceful restart processing for client connect */ | |
1964 | zebra_gr_client_reconnect(client); | |
bf094f69 QY |
1965 | } |
1966 | ||
17da84a4 KS |
1967 | if (!client->synchronous) { |
1968 | zsend_capabilities(client, zvrf); | |
1969 | zebra_vrf_update_all(client); | |
1970 | } | |
bf094f69 QY |
1971 | stream_failure: |
1972 | return; | |
1973 | } | |
1974 | ||
1975 | /* Unregister all information in a VRF. */ | |
1976 | static void zread_vrf_unregister(ZAPI_HANDLER_ARGS) | |
1977 | { | |
1978 | int i; | |
1979 | afi_t afi; | |
1980 | ||
49db7a7b | 1981 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
bf094f69 QY |
1982 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
1983 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
49db7a7b RW |
1984 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); |
1985 | } | |
bf094f69 QY |
1986 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); |
1987 | } | |
1988 | ||
ea6b290b RW |
1989 | /* |
1990 | * Handle request to create an MPLS LSP. | |
1991 | * | |
1992 | * A single message can fully specify an LSP with multiple nexthops. | |
1993 | * | |
1994 | * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is | |
1995 | * updated to use the received label(s). | |
1996 | */ | |
1997 | static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS) | |
bf094f69 QY |
1998 | { |
1999 | struct stream *s; | |
bad6b0e7 | 2000 | struct zapi_labels zl; |
f2e7f4eb | 2001 | int ret; |
bf094f69 QY |
2002 | |
2003 | /* Get input stream. */ | |
2004 | s = msg; | |
bad6b0e7 RW |
2005 | if (zapi_labels_decode(s, &zl) < 0) { |
2006 | if (IS_ZEBRA_DEBUG_RECV) | |
2007 | zlog_debug("%s: Unable to decode zapi_labels sent", | |
15569c58 | 2008 | __func__); |
bf094f69 QY |
2009 | return; |
2010 | } | |
bf094f69 | 2011 | |
bf094f69 QY |
2012 | if (!mpls_enabled) |
2013 | return; | |
2014 | ||
f2e7f4eb MS |
2015 | ret = mpls_zapi_labels_process(true, zvrf, &zl); |
2016 | if (ret < 0) { | |
2017 | if (IS_ZEBRA_DEBUG_RECV) | |
2018 | zlog_debug("%s: Error processing zapi request", | |
2019 | __func__); | |
ea6b290b RW |
2020 | } |
2021 | } | |
2022 | ||
2023 | /* | |
2024 | * Handle request to delete an MPLS LSP. | |
2025 | * | |
2026 | * An LSP is identified by its type and local label. When the received message | |
2027 | * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the | |
2028 | * listed LSP nexthops (aka NHLFEs) are deleted. | |
2029 | * | |
2030 | * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified | |
2031 | * FEC (route) nexthops are deleted. | |
2032 | */ | |
2033 | static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS) | |
2034 | { | |
2035 | struct stream *s; | |
2036 | struct zapi_labels zl; | |
f2e7f4eb | 2037 | int ret; |
ea6b290b RW |
2038 | |
2039 | /* Get input stream. */ | |
2040 | s = msg; | |
2041 | if (zapi_labels_decode(s, &zl) < 0) { | |
2042 | if (IS_ZEBRA_DEBUG_RECV) | |
2043 | zlog_debug("%s: Unable to decode zapi_labels sent", | |
15569c58 | 2044 | __func__); |
ea6b290b RW |
2045 | return; |
2046 | } | |
2047 | ||
2048 | if (!mpls_enabled) | |
2049 | return; | |
2050 | ||
2051 | if (zl.nexthop_num > 0) { | |
f2e7f4eb MS |
2052 | ret = mpls_zapi_labels_process(false /*delete*/, zvrf, &zl); |
2053 | if (ret < 0) { | |
2054 | if (IS_ZEBRA_DEBUG_RECV) | |
2055 | zlog_debug("%s: Error processing zapi request", | |
2056 | __func__); | |
ea6b290b RW |
2057 | } |
2058 | } else { | |
2059 | mpls_lsp_uninstall_all_vrf(zvrf, zl.type, zl.local_label); | |
2060 | ||
b3c49d0e | 2061 | if (CHECK_FLAG(zl.message, ZAPI_LABELS_FTN)) |
ea6b290b RW |
2062 | mpls_ftn_uninstall(zvrf, zl.type, &zl.route.prefix, |
2063 | zl.route.type, zl.route.instance); | |
2064 | } | |
2065 | } | |
2066 | ||
2067 | /* | |
2068 | * Handle request to add an MPLS LSP or change an existing one. | |
2069 | * | |
2070 | * A single message can fully specify an LSP with multiple nexthops. | |
2071 | * | |
2072 | * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is | |
2073 | * updated to use the received label(s). | |
2074 | * | |
2075 | * NOTE: zebra will use route replace semantics (make-before-break) to update | |
2076 | * the LSP in the forwarding plane if that's supported by the underlying | |
2077 | * platform. | |
2078 | */ | |
2079 | static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS) | |
2080 | { | |
2081 | struct stream *s; | |
2082 | struct zapi_labels zl; | |
2083 | ||
2084 | /* Get input stream. */ | |
2085 | s = msg; | |
2086 | if (zapi_labels_decode(s, &zl) < 0) { | |
2087 | if (IS_ZEBRA_DEBUG_RECV) | |
2088 | zlog_debug("%s: Unable to decode zapi_labels sent", | |
15569c58 | 2089 | __func__); |
ea6b290b RW |
2090 | return; |
2091 | } | |
2092 | ||
2093 | if (!mpls_enabled) | |
2094 | return; | |
2095 | ||
f2e7f4eb MS |
2096 | /* This removes everything, then re-adds from the client's |
2097 | * zapi message. Since the LSP will be processed later, on this | |
2098 | * this same pthread, all of the changes will 'appear' at once. | |
2099 | */ | |
ea6b290b RW |
2100 | mpls_lsp_uninstall_all_vrf(zvrf, zl.type, zl.local_label); |
2101 | if (CHECK_FLAG(zl.message, ZAPI_LABELS_FTN)) | |
2102 | mpls_ftn_uninstall(zvrf, zl.type, &zl.route.prefix, | |
2103 | zl.route.type, zl.route.instance); | |
2104 | ||
f2e7f4eb | 2105 | mpls_zapi_labels_process(true, zvrf, &zl); |
bf094f69 QY |
2106 | } |
2107 | ||
2108 | /* Send response to a table manager connect request to client */ | |
2109 | static void zread_table_manager_connect(struct zserv *client, | |
2110 | struct stream *msg, vrf_id_t vrf_id) | |
2111 | { | |
2112 | struct stream *s; | |
2113 | uint8_t proto; | |
2114 | uint16_t instance; | |
c479e756 | 2115 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); |
bf094f69 QY |
2116 | |
2117 | s = msg; | |
2118 | ||
2119 | /* Get data. */ | |
2120 | STREAM_GETC(s, proto); | |
2121 | STREAM_GETW(s, instance); | |
2122 | ||
2123 | /* accept only dynamic routing protocols */ | |
2124 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 2125 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
2126 | "client %d has wrong protocol %s", client->sock, |
2127 | zebra_route_string(proto)); | |
bf094f69 QY |
2128 | zsend_table_manager_connect_response(client, vrf_id, 1); |
2129 | return; | |
2130 | } | |
c479e756 DS |
2131 | zlog_notice("client %d with vrf %s(%u) instance %u connected as %s", |
2132 | client->sock, VRF_LOGNAME(vrf), vrf_id, instance, | |
2133 | zebra_route_string(proto)); | |
bf094f69 QY |
2134 | client->proto = proto; |
2135 | client->instance = instance; | |
2136 | ||
2137 | /* | |
2138 | * Release previous labels of same protocol and instance. | |
2139 | * This is done in case it restarted from an unexpected shutdown. | |
2140 | */ | |
453844ab | 2141 | release_daemon_table_chunks(client); |
bf094f69 QY |
2142 | |
2143 | zsend_table_manager_connect_response(client, vrf_id, 0); | |
2144 | ||
2145 | stream_failure: | |
2146 | return; | |
2147 | } | |
2148 | ||
2149 | static void zread_label_manager_connect(struct zserv *client, | |
2150 | struct stream *msg, vrf_id_t vrf_id) | |
2151 | { | |
2152 | struct stream *s; | |
2153 | /* type of protocol (lib/zebra.h) */ | |
2154 | uint8_t proto; | |
2155 | unsigned short instance; | |
2156 | ||
2157 | /* Get input stream. */ | |
2158 | s = msg; | |
2159 | ||
2160 | /* Get data. */ | |
2161 | STREAM_GETC(s, proto); | |
2162 | STREAM_GETW(s, instance); | |
2163 | ||
2164 | /* accept only dynamic routing protocols */ | |
2165 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 2166 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
2167 | "client %d has wrong protocol %s", client->sock, |
2168 | zebra_route_string(proto)); | |
e11d7c96 | 2169 | zsend_label_manager_connect_response(client, vrf_id, 1); |
bf094f69 QY |
2170 | return; |
2171 | } | |
e11d7c96 EDP |
2172 | |
2173 | /* recall proto and instance in this socket */ | |
bf094f69 QY |
2174 | client->proto = proto; |
2175 | client->instance = instance; | |
2176 | ||
e11d7c96 | 2177 | /* call hook for connection using wrapper */ |
4cebdb9b | 2178 | lm_client_connect_call(client, vrf_id); |
bf094f69 QY |
2179 | |
2180 | stream_failure: | |
2181 | return; | |
2182 | } | |
2183 | ||
2184 | static void zread_get_label_chunk(struct zserv *client, struct stream *msg, | |
2185 | vrf_id_t vrf_id) | |
2186 | { | |
2187 | struct stream *s; | |
2188 | uint8_t keep; | |
0e3b6a92 | 2189 | uint32_t size, base; |
e11d7c96 | 2190 | struct label_manager_chunk *lmc = NULL; |
5dffb0e9 FR |
2191 | uint8_t proto; |
2192 | unsigned short instance; | |
bf094f69 QY |
2193 | |
2194 | /* Get input stream. */ | |
2195 | s = msg; | |
2196 | ||
2197 | /* Get data. */ | |
5dffb0e9 FR |
2198 | STREAM_GETC(s, proto); |
2199 | STREAM_GETW(s, instance); | |
bf094f69 QY |
2200 | STREAM_GETC(s, keep); |
2201 | STREAM_GETL(s, size); | |
0e3b6a92 | 2202 | STREAM_GETL(s, base); |
bf094f69 | 2203 | |
4cebdb9b MS |
2204 | assert(proto == client->proto && instance == client->instance); |
2205 | ||
e11d7c96 | 2206 | /* call hook to get a chunk using wrapper */ |
4cebdb9b | 2207 | lm_get_chunk_call(&lmc, client, keep, size, base, vrf_id); |
bf094f69 | 2208 | |
bf094f69 QY |
2209 | stream_failure: |
2210 | return; | |
2211 | } | |
2212 | ||
2213 | static void zread_release_label_chunk(struct zserv *client, struct stream *msg) | |
2214 | { | |
2215 | struct stream *s; | |
2216 | uint32_t start, end; | |
5dffb0e9 FR |
2217 | uint8_t proto; |
2218 | unsigned short instance; | |
bf094f69 QY |
2219 | |
2220 | /* Get input stream. */ | |
2221 | s = msg; | |
2222 | ||
2223 | /* Get data. */ | |
5dffb0e9 FR |
2224 | STREAM_GETC(s, proto); |
2225 | STREAM_GETW(s, instance); | |
bf094f69 QY |
2226 | STREAM_GETL(s, start); |
2227 | STREAM_GETL(s, end); | |
2228 | ||
4cebdb9b MS |
2229 | assert(proto == client->proto && instance == client->instance); |
2230 | ||
e11d7c96 | 2231 | /* call hook to release a chunk using wrapper */ |
4cebdb9b | 2232 | lm_release_chunk_call(client, start, end); |
bf094f69 QY |
2233 | |
2234 | stream_failure: | |
2235 | return; | |
2236 | } | |
e11d7c96 | 2237 | |
bf094f69 QY |
2238 | static void zread_label_manager_request(ZAPI_HANDLER_ARGS) |
2239 | { | |
e11d7c96 EDP |
2240 | if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT |
2241 | || hdr->command == ZEBRA_LABEL_MANAGER_CONNECT_ASYNC) | |
2242 | zread_label_manager_connect(client, msg, zvrf_id(zvrf)); | |
bf094f69 | 2243 | else { |
e11d7c96 EDP |
2244 | if (hdr->command == ZEBRA_GET_LABEL_CHUNK) |
2245 | zread_get_label_chunk(client, msg, zvrf_id(zvrf)); | |
2246 | else if (hdr->command == ZEBRA_RELEASE_LABEL_CHUNK) | |
2247 | zread_release_label_chunk(client, msg); | |
bf094f69 QY |
2248 | } |
2249 | } | |
2250 | ||
2251 | static void zread_get_table_chunk(struct zserv *client, struct stream *msg, | |
2252 | vrf_id_t vrf_id) | |
2253 | { | |
2254 | struct stream *s; | |
2255 | uint32_t size; | |
2256 | struct table_manager_chunk *tmc; | |
2257 | ||
2258 | /* Get input stream. */ | |
2259 | s = msg; | |
2260 | ||
2261 | /* Get data. */ | |
2262 | STREAM_GETL(s, size); | |
2263 | ||
2264 | tmc = assign_table_chunk(client->proto, client->instance, size); | |
2265 | if (!tmc) | |
e914ccbe | 2266 | flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK, |
1c50c1c0 QY |
2267 | "%s: Unable to assign Table Chunk of size %u", |
2268 | __func__, size); | |
bf094f69 QY |
2269 | else |
2270 | zlog_debug("Assigned Table Chunk %u - %u", tmc->start, | |
2271 | tmc->end); | |
2272 | /* send response back */ | |
2273 | zsend_assign_table_chunk_response(client, vrf_id, tmc); | |
2274 | ||
2275 | stream_failure: | |
2276 | return; | |
2277 | } | |
2278 | ||
2279 | static void zread_release_table_chunk(struct zserv *client, struct stream *msg) | |
2280 | { | |
2281 | struct stream *s; | |
2282 | uint32_t start, end; | |
2283 | ||
2284 | /* Get input stream. */ | |
2285 | s = msg; | |
2286 | ||
2287 | /* Get data. */ | |
2288 | STREAM_GETL(s, start); | |
2289 | STREAM_GETL(s, end); | |
2290 | ||
2291 | release_table_chunk(client->proto, client->instance, start, end); | |
2292 | ||
2293 | stream_failure: | |
2294 | return; | |
2295 | } | |
2296 | ||
2297 | static void zread_table_manager_request(ZAPI_HANDLER_ARGS) | |
2298 | { | |
2299 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
2300 | if (hdr->command == ZEBRA_TABLE_MANAGER_CONNECT) | |
2301 | zread_table_manager_connect(client, msg, zvrf_id(zvrf)); | |
2302 | else { | |
2303 | /* Sanity: don't allow 'unidentified' requests */ | |
2304 | if (!client->proto) { | |
af4c2728 | 2305 | flog_err( |
e914ccbe | 2306 | EC_ZEBRA_TM_ALIENS, |
bf094f69 QY |
2307 | "Got table request from an unidentified client"); |
2308 | return; | |
2309 | } | |
2310 | if (hdr->command == ZEBRA_GET_TABLE_CHUNK) | |
2311 | zread_get_table_chunk(client, msg, zvrf_id(zvrf)); | |
2312 | else if (hdr->command == ZEBRA_RELEASE_TABLE_CHUNK) | |
2313 | zread_release_table_chunk(client, msg); | |
2314 | } | |
2315 | } | |
2316 | ||
2317 | static void zread_pseudowire(ZAPI_HANDLER_ARGS) | |
2318 | { | |
2319 | struct stream *s; | |
2320 | char ifname[IF_NAMESIZE]; | |
2321 | ifindex_t ifindex; | |
2322 | int type; | |
2323 | int af; | |
2324 | union g_addr nexthop; | |
2325 | uint32_t local_label; | |
2326 | uint32_t remote_label; | |
2327 | uint8_t flags; | |
2328 | union pw_protocol_fields data; | |
2329 | uint8_t protocol; | |
2330 | struct zebra_pw *pw; | |
2331 | ||
2332 | /* Get input stream. */ | |
2333 | s = msg; | |
2334 | ||
2335 | /* Get data. */ | |
2336 | STREAM_GET(ifname, s, IF_NAMESIZE); | |
f223b3d1 | 2337 | ifname[IF_NAMESIZE - 1] = '\0'; |
bf094f69 QY |
2338 | STREAM_GETL(s, ifindex); |
2339 | STREAM_GETL(s, type); | |
2340 | STREAM_GETL(s, af); | |
2341 | switch (af) { | |
2342 | case AF_INET: | |
2343 | STREAM_GET(&nexthop.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
2344 | break; | |
2345 | case AF_INET6: | |
2346 | STREAM_GET(&nexthop.ipv6, s, 16); | |
2347 | break; | |
2348 | default: | |
2349 | return; | |
2350 | } | |
2351 | STREAM_GETL(s, local_label); | |
2352 | STREAM_GETL(s, remote_label); | |
2353 | STREAM_GETC(s, flags); | |
2354 | STREAM_GET(&data, s, sizeof(data)); | |
2355 | protocol = client->proto; | |
2356 | ||
2357 | pw = zebra_pw_find(zvrf, ifname); | |
2358 | switch (hdr->command) { | |
2359 | case ZEBRA_PW_ADD: | |
2360 | if (pw) { | |
e914ccbe | 2361 | flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS, |
9df414fe | 2362 | "%s: pseudowire %s already exists [%s]", |
bf094f69 QY |
2363 | __func__, ifname, |
2364 | zserv_command_string(hdr->command)); | |
2365 | return; | |
2366 | } | |
2367 | ||
2368 | zebra_pw_add(zvrf, ifname, protocol, client); | |
2369 | break; | |
2370 | case ZEBRA_PW_DELETE: | |
2371 | if (!pw) { | |
e914ccbe | 2372 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2373 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2374 | ifname, zserv_command_string(hdr->command)); |
2375 | return; | |
2376 | } | |
2377 | ||
2378 | zebra_pw_del(zvrf, pw); | |
2379 | break; | |
2380 | case ZEBRA_PW_SET: | |
2381 | case ZEBRA_PW_UNSET: | |
2382 | if (!pw) { | |
e914ccbe | 2383 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2384 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2385 | ifname, zserv_command_string(hdr->command)); |
2386 | return; | |
2387 | } | |
2388 | ||
2389 | switch (hdr->command) { | |
2390 | case ZEBRA_PW_SET: | |
2391 | pw->enabled = 1; | |
2392 | break; | |
2393 | case ZEBRA_PW_UNSET: | |
2394 | pw->enabled = 0; | |
2395 | break; | |
2396 | } | |
2397 | ||
2398 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
2399 | remote_label, flags, &data); | |
2400 | break; | |
2401 | } | |
2402 | ||
2403 | stream_failure: | |
2404 | return; | |
2405 | } | |
2406 | ||
2407 | static void zread_interface_set_master(ZAPI_HANDLER_ARGS) | |
2408 | { | |
2409 | struct interface *master; | |
2410 | struct interface *slave; | |
2411 | struct stream *s = msg; | |
2412 | int ifindex; | |
2413 | vrf_id_t vrf_id; | |
2414 | ||
2415 | STREAM_GETL(s, vrf_id); | |
2416 | STREAM_GETL(s, ifindex); | |
2417 | master = if_lookup_by_index(ifindex, vrf_id); | |
2418 | ||
2419 | STREAM_GETL(s, vrf_id); | |
2420 | STREAM_GETL(s, ifindex); | |
2421 | slave = if_lookup_by_index(ifindex, vrf_id); | |
2422 | ||
2423 | if (!master || !slave) | |
2424 | return; | |
2425 | ||
2426 | kernel_interface_set_master(master, slave); | |
2427 | ||
2428 | stream_failure: | |
2429 | return; | |
2430 | } | |
2431 | ||
2432 | ||
2433 | static void zread_vrf_label(ZAPI_HANDLER_ARGS) | |
2434 | { | |
2435 | struct interface *ifp; | |
2436 | mpls_label_t nlabel; | |
2437 | afi_t afi; | |
2438 | struct stream *s; | |
2439 | struct zebra_vrf *def_zvrf; | |
2440 | enum lsp_types_t ltype; | |
2441 | ||
2442 | s = msg; | |
2443 | STREAM_GETL(s, nlabel); | |
2444 | STREAM_GETC(s, afi); | |
663d3a91 QY |
2445 | |
2446 | if (!(IS_VALID_AFI(afi))) { | |
2447 | zlog_warn("Invalid AFI for VRF label: %u", afi); | |
2448 | return; | |
2449 | } | |
2450 | ||
bf094f69 QY |
2451 | if (nlabel == zvrf->label[afi]) { |
2452 | /* | |
2453 | * Nothing to do here move along | |
2454 | */ | |
2455 | return; | |
2456 | } | |
2457 | ||
2458 | STREAM_GETC(s, ltype); | |
2459 | ||
2460 | if (zvrf->vrf->vrf_id != VRF_DEFAULT) | |
a36898e7 | 2461 | ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id); |
bf094f69 | 2462 | else |
a36898e7 | 2463 | ifp = if_lookup_by_name("lo", VRF_DEFAULT); |
bf094f69 QY |
2464 | |
2465 | if (!ifp) { | |
2466 | zlog_debug("Unable to find specified Interface for %s", | |
2467 | zvrf->vrf->name); | |
2468 | return; | |
2469 | } | |
2470 | ||
2471 | def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT); | |
2472 | ||
2473 | if (zvrf->label[afi] != MPLS_LABEL_NONE) { | |
2474 | afi_t scrubber; | |
2475 | bool really_remove; | |
2476 | ||
2477 | really_remove = true; | |
2478 | for (scrubber = AFI_IP; scrubber < AFI_MAX; scrubber++) { | |
2479 | if (scrubber == afi) | |
2480 | continue; | |
2481 | ||
2482 | if (zvrf->label[scrubber] == MPLS_LABEL_NONE) | |
2483 | continue; | |
2484 | ||
2485 | if (zvrf->label[afi] == zvrf->label[scrubber]) { | |
2486 | really_remove = false; | |
2487 | break; | |
2488 | } | |
2489 | } | |
2490 | ||
2491 | if (really_remove) | |
2492 | mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label[afi], | |
2493 | NEXTHOP_TYPE_IFINDEX, NULL, | |
2494 | ifp->ifindex); | |
2495 | } | |
2496 | ||
5065db0a RW |
2497 | if (nlabel != MPLS_LABEL_NONE) { |
2498 | mpls_label_t out_label = MPLS_LABEL_IMPLICIT_NULL; | |
2499 | mpls_lsp_install(def_zvrf, ltype, nlabel, 1, &out_label, | |
2500 | NEXTHOP_TYPE_IFINDEX, NULL, ifp->ifindex); | |
2501 | } | |
bf094f69 QY |
2502 | |
2503 | zvrf->label[afi] = nlabel; | |
2504 | stream_failure: | |
2505 | return; | |
2506 | } | |
2507 | ||
2508 | static inline void zread_rule(ZAPI_HANDLER_ARGS) | |
2509 | { | |
2510 | struct zebra_pbr_rule zpr; | |
2511 | struct stream *s; | |
2512 | uint32_t total, i; | |
bf094f69 QY |
2513 | |
2514 | s = msg; | |
2515 | STREAM_GETL(s, total); | |
2516 | ||
2517 | for (i = 0; i < total; i++) { | |
2518 | memset(&zpr, 0, sizeof(zpr)); | |
2519 | ||
2520 | zpr.sock = client->sock; | |
2521 | zpr.rule.vrf_id = hdr->vrf_id; | |
2522 | STREAM_GETL(s, zpr.rule.seq); | |
2523 | STREAM_GETL(s, zpr.rule.priority); | |
2524 | STREAM_GETL(s, zpr.rule.unique); | |
2525 | STREAM_GETC(s, zpr.rule.filter.src_ip.family); | |
2526 | STREAM_GETC(s, zpr.rule.filter.src_ip.prefixlen); | |
2527 | STREAM_GET(&zpr.rule.filter.src_ip.u.prefix, s, | |
2528 | prefix_blen(&zpr.rule.filter.src_ip)); | |
2529 | STREAM_GETW(s, zpr.rule.filter.src_port); | |
2530 | STREAM_GETC(s, zpr.rule.filter.dst_ip.family); | |
2531 | STREAM_GETC(s, zpr.rule.filter.dst_ip.prefixlen); | |
2532 | STREAM_GET(&zpr.rule.filter.dst_ip.u.prefix, s, | |
2533 | prefix_blen(&zpr.rule.filter.dst_ip)); | |
2534 | STREAM_GETW(s, zpr.rule.filter.dst_port); | |
2535 | STREAM_GETL(s, zpr.rule.filter.fwmark); | |
2536 | STREAM_GETL(s, zpr.rule.action.table); | |
b77a69bd | 2537 | STREAM_GETL(s, zpr.rule.ifindex); |
bf094f69 | 2538 | |
b77a69bd | 2539 | if (zpr.rule.ifindex) { |
b19d55d0 SW |
2540 | struct interface *ifp; |
2541 | ||
2542 | ifp = if_lookup_by_index_per_ns(zvrf->zns, | |
2543 | zpr.rule.ifindex); | |
2544 | if (!ifp) { | |
bf094f69 | 2545 | zlog_debug("Failed to lookup ifindex: %u", |
b77a69bd | 2546 | zpr.rule.ifindex); |
bf094f69 QY |
2547 | return; |
2548 | } | |
b19d55d0 SW |
2549 | |
2550 | strlcpy(zpr.ifname, ifp->name, sizeof(zpr.ifname)); | |
bf094f69 QY |
2551 | } |
2552 | ||
2553 | if (!is_default_prefix(&zpr.rule.filter.src_ip)) | |
2554 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_IP; | |
2555 | ||
2556 | if (!is_default_prefix(&zpr.rule.filter.dst_ip)) | |
2557 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_IP; | |
2558 | ||
2559 | if (zpr.rule.filter.src_port) | |
2560 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_PORT; | |
2561 | ||
2562 | if (zpr.rule.filter.dst_port) | |
2563 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_PORT; | |
2564 | ||
2565 | if (zpr.rule.filter.fwmark) | |
2566 | zpr.rule.filter.filter_bm |= PBR_FILTER_FWMARK; | |
2567 | ||
4719fd76 QY |
2568 | if (!(zpr.rule.filter.src_ip.family == AF_INET |
2569 | || zpr.rule.filter.src_ip.family == AF_INET6)) { | |
cc815be7 QY |
2570 | zlog_warn( |
2571 | "Unsupported PBR source IP family: %s (%" PRIu8 | |
b7b05b46 | 2572 | ")", |
cc815be7 QY |
2573 | family2str(zpr.rule.filter.src_ip.family), |
2574 | zpr.rule.filter.src_ip.family); | |
4719fd76 QY |
2575 | return; |
2576 | } | |
2577 | if (!(zpr.rule.filter.dst_ip.family == AF_INET | |
2578 | || zpr.rule.filter.dst_ip.family == AF_INET6)) { | |
cec72d49 DA |
2579 | zlog_warn( |
2580 | "Unsupported PBR destination IP family: %s (%" PRIu8 | |
2581 | ")", | |
2582 | family2str(zpr.rule.filter.dst_ip.family), | |
2583 | zpr.rule.filter.dst_ip.family); | |
4719fd76 QY |
2584 | return; |
2585 | } | |
2586 | ||
2587 | ||
7f0ea8a4 | 2588 | zpr.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 | 2589 | if (hdr->command == ZEBRA_RULE_ADD) |
7f0ea8a4 | 2590 | zebra_pbr_add_rule(&zpr); |
bf094f69 | 2591 | else |
7f0ea8a4 | 2592 | zebra_pbr_del_rule(&zpr); |
bf094f69 QY |
2593 | } |
2594 | ||
2595 | stream_failure: | |
2596 | return; | |
2597 | } | |
2598 | ||
2599 | static inline void zread_ipset(ZAPI_HANDLER_ARGS) | |
2600 | { | |
2601 | struct zebra_pbr_ipset zpi; | |
2602 | struct stream *s; | |
2603 | uint32_t total, i; | |
2604 | ||
2605 | s = msg; | |
2606 | STREAM_GETL(s, total); | |
2607 | ||
2608 | for (i = 0; i < total; i++) { | |
2609 | memset(&zpi, 0, sizeof(zpi)); | |
2610 | ||
2611 | zpi.sock = client->sock; | |
be2028d1 | 2612 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2613 | STREAM_GETL(s, zpi.unique); |
2614 | STREAM_GETL(s, zpi.type); | |
2615 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2616 | ||
2617 | if (hdr->command == ZEBRA_IPSET_CREATE) | |
62f20a52 | 2618 | zebra_pbr_create_ipset(&zpi); |
bf094f69 | 2619 | else |
62f20a52 | 2620 | zebra_pbr_destroy_ipset(&zpi); |
bf094f69 QY |
2621 | } |
2622 | ||
2623 | stream_failure: | |
2624 | return; | |
2625 | } | |
2626 | ||
2627 | static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS) | |
2628 | { | |
2629 | struct zebra_pbr_ipset_entry zpi; | |
2630 | struct zebra_pbr_ipset ipset; | |
2631 | struct stream *s; | |
2632 | uint32_t total, i; | |
2633 | ||
2634 | s = msg; | |
2635 | STREAM_GETL(s, total); | |
2636 | ||
2637 | for (i = 0; i < total; i++) { | |
2638 | memset(&zpi, 0, sizeof(zpi)); | |
2639 | memset(&ipset, 0, sizeof(ipset)); | |
2640 | ||
2641 | zpi.sock = client->sock; | |
2642 | STREAM_GETL(s, zpi.unique); | |
2643 | STREAM_GET(&ipset.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
261462c3 | 2644 | ipset.ipset_name[ZEBRA_IPSET_NAME_SIZE - 1] = '\0'; |
bf094f69 QY |
2645 | STREAM_GETC(s, zpi.src.family); |
2646 | STREAM_GETC(s, zpi.src.prefixlen); | |
2647 | STREAM_GET(&zpi.src.u.prefix, s, prefix_blen(&zpi.src)); | |
2648 | STREAM_GETC(s, zpi.dst.family); | |
2649 | STREAM_GETC(s, zpi.dst.prefixlen); | |
2650 | STREAM_GET(&zpi.dst.u.prefix, s, prefix_blen(&zpi.dst)); | |
2651 | ||
25d760c5 PG |
2652 | STREAM_GETW(s, zpi.src_port_min); |
2653 | STREAM_GETW(s, zpi.src_port_max); | |
2654 | STREAM_GETW(s, zpi.dst_port_min); | |
2655 | STREAM_GETW(s, zpi.dst_port_max); | |
2656 | STREAM_GETC(s, zpi.proto); | |
bf094f69 QY |
2657 | if (!is_default_prefix(&zpi.src)) |
2658 | zpi.filter_bm |= PBR_FILTER_SRC_IP; | |
2659 | ||
2660 | if (!is_default_prefix(&zpi.dst)) | |
2661 | zpi.filter_bm |= PBR_FILTER_DST_IP; | |
be729dd7 | 2662 | if (zpi.dst_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 | 2663 | zpi.filter_bm |= PBR_FILTER_DST_PORT; |
be729dd7 | 2664 | if (zpi.src_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 PG |
2665 | zpi.filter_bm |= PBR_FILTER_SRC_PORT; |
2666 | if (zpi.dst_port_max != 0) | |
2667 | zpi.filter_bm |= PBR_FILTER_DST_PORT_RANGE; | |
2668 | if (zpi.src_port_max != 0) | |
2669 | zpi.filter_bm |= PBR_FILTER_SRC_PORT_RANGE; | |
2670 | if (zpi.proto != 0) | |
2671 | zpi.filter_bm |= PBR_FILTER_PROTO; | |
bf094f69 | 2672 | |
9863725c QY |
2673 | if (!(zpi.dst.family == AF_INET |
2674 | || zpi.dst.family == AF_INET6)) { | |
cec72d49 DA |
2675 | zlog_warn( |
2676 | "Unsupported PBR destination IP family: %s (%" PRIu8 | |
2677 | ")", | |
2678 | family2str(zpi.dst.family), zpi.dst.family); | |
9863725c QY |
2679 | goto stream_failure; |
2680 | } | |
2681 | if (!(zpi.src.family == AF_INET | |
2682 | || zpi.src.family == AF_INET6)) { | |
cec72d49 DA |
2683 | zlog_warn( |
2684 | "Unsupported PBR source IP family: %s (%" PRIu8 | |
2685 | ")", | |
2686 | family2str(zpi.src.family), zpi.src.family); | |
9863725c QY |
2687 | goto stream_failure; |
2688 | } | |
2689 | ||
bf094f69 | 2690 | /* calculate backpointer */ |
62f20a52 DS |
2691 | zpi.backpointer = |
2692 | zebra_pbr_lookup_ipset_pername(ipset.ipset_name); | |
f096bae4 DS |
2693 | |
2694 | if (!zpi.backpointer) { | |
2695 | zlog_warn("ipset name specified: %s does not exist", | |
2696 | ipset.ipset_name); | |
2697 | goto stream_failure; | |
2698 | } | |
2699 | ||
bf094f69 | 2700 | if (hdr->command == ZEBRA_IPSET_ENTRY_ADD) |
62f20a52 | 2701 | zebra_pbr_add_ipset_entry(&zpi); |
bf094f69 | 2702 | else |
62f20a52 | 2703 | zebra_pbr_del_ipset_entry(&zpi); |
bf094f69 QY |
2704 | } |
2705 | ||
2706 | stream_failure: | |
2707 | return; | |
2708 | } | |
2709 | ||
2710 | static inline void zread_iptable(ZAPI_HANDLER_ARGS) | |
2711 | { | |
8b5c4dce QY |
2712 | struct zebra_pbr_iptable *zpi = |
2713 | XCALLOC(MTYPE_TMP, sizeof(struct zebra_pbr_iptable)); | |
bf094f69 QY |
2714 | struct stream *s; |
2715 | ||
2716 | s = msg; | |
2717 | ||
8b5c4dce QY |
2718 | zpi->interface_name_list = list_new(); |
2719 | zpi->sock = client->sock; | |
2720 | zpi->vrf_id = zvrf->vrf->vrf_id; | |
2721 | STREAM_GETL(s, zpi->unique); | |
2722 | STREAM_GETL(s, zpi->type); | |
2723 | STREAM_GETL(s, zpi->filter_bm); | |
2724 | STREAM_GETL(s, zpi->action); | |
2725 | STREAM_GETL(s, zpi->fwmark); | |
2726 | STREAM_GET(&zpi->ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2727 | STREAM_GETW(s, zpi->pkt_len_min); | |
2728 | STREAM_GETW(s, zpi->pkt_len_max); | |
2729 | STREAM_GETW(s, zpi->tcp_flags); | |
2730 | STREAM_GETW(s, zpi->tcp_mask_flags); | |
2731 | STREAM_GETC(s, zpi->dscp_value); | |
2732 | STREAM_GETC(s, zpi->fragment); | |
2733 | STREAM_GETC(s, zpi->protocol); | |
2734 | STREAM_GETL(s, zpi->nb_interface); | |
2735 | zebra_pbr_iptable_update_interfacelist(s, zpi); | |
bf094f69 QY |
2736 | |
2737 | if (hdr->command == ZEBRA_IPTABLE_ADD) | |
8b5c4dce | 2738 | zebra_pbr_add_iptable(zpi); |
bf094f69 | 2739 | else |
8b5c4dce QY |
2740 | zebra_pbr_del_iptable(zpi); |
2741 | ||
bf094f69 | 2742 | stream_failure: |
8b5c4dce QY |
2743 | zebra_pbr_iptable_free(zpi); |
2744 | zpi = NULL; | |
bf094f69 QY |
2745 | return; |
2746 | } | |
2747 | ||
9ab0b2a3 SW |
2748 | static void zsend_error_msg(struct zserv *client, enum zebra_error_types error, |
2749 | struct zmsghdr *bad_hdr) | |
2750 | { | |
2751 | ||
2752 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2753 | ||
2754 | zclient_create_header(s, ZEBRA_ERROR, bad_hdr->vrf_id); | |
2755 | ||
2756 | zserv_encode_error(s, error); | |
2757 | ||
2758 | client->error_cnt++; | |
2759 | zserv_send_message(client, s); | |
2760 | } | |
2761 | ||
2762 | static void zserv_error_no_vrf(ZAPI_HANDLER_ARGS) | |
2763 | { | |
2764 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2765 | zlog_debug("ZAPI message specifies unknown VRF: %d", | |
2766 | hdr->vrf_id); | |
2767 | ||
5ee080f0 | 2768 | zsend_error_msg(client, ZEBRA_NO_VRF, hdr); |
9ab0b2a3 SW |
2769 | } |
2770 | ||
2771 | static void zserv_error_invalid_msg_type(ZAPI_HANDLER_ARGS) | |
2772 | { | |
2773 | zlog_info("Zebra received unknown command %d", hdr->command); | |
2774 | ||
5ee080f0 | 2775 | zsend_error_msg(client, ZEBRA_INVALID_MSG_TYPE, hdr); |
9ab0b2a3 SW |
2776 | } |
2777 | ||
2b64873d | 2778 | void (*const zserv_handlers[])(ZAPI_HANDLER_ARGS) = { |
bf094f69 QY |
2779 | [ZEBRA_ROUTER_ID_ADD] = zread_router_id_add, |
2780 | [ZEBRA_ROUTER_ID_DELETE] = zread_router_id_delete, | |
2781 | [ZEBRA_INTERFACE_ADD] = zread_interface_add, | |
2782 | [ZEBRA_INTERFACE_DELETE] = zread_interface_delete, | |
c3bd894e | 2783 | [ZEBRA_INTERFACE_SET_PROTODOWN] = zread_interface_set_protodown, |
bf094f69 QY |
2784 | [ZEBRA_ROUTE_ADD] = zread_route_add, |
2785 | [ZEBRA_ROUTE_DELETE] = zread_route_del, | |
bf094f69 QY |
2786 | [ZEBRA_REDISTRIBUTE_ADD] = zebra_redistribute_add, |
2787 | [ZEBRA_REDISTRIBUTE_DELETE] = zebra_redistribute_delete, | |
2788 | [ZEBRA_REDISTRIBUTE_DEFAULT_ADD] = zebra_redistribute_default_add, | |
2789 | [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE] = zebra_redistribute_default_delete, | |
2790 | [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB] = zread_ipv4_nexthop_lookup_mrib, | |
2791 | [ZEBRA_HELLO] = zread_hello, | |
2792 | [ZEBRA_NEXTHOP_REGISTER] = zread_rnh_register, | |
2793 | [ZEBRA_NEXTHOP_UNREGISTER] = zread_rnh_unregister, | |
2794 | [ZEBRA_IMPORT_ROUTE_REGISTER] = zread_rnh_register, | |
2795 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = zread_rnh_unregister, | |
2796 | [ZEBRA_BFD_DEST_UPDATE] = zebra_ptm_bfd_dst_register, | |
2797 | [ZEBRA_BFD_DEST_REGISTER] = zebra_ptm_bfd_dst_register, | |
2798 | [ZEBRA_BFD_DEST_DEREGISTER] = zebra_ptm_bfd_dst_deregister, | |
d3af6147 RZ |
2799 | #if HAVE_BFDD > 0 |
2800 | [ZEBRA_BFD_DEST_REPLAY] = zebra_ptm_bfd_dst_replay, | |
2801 | #endif /* HAVE_BFDD */ | |
bf094f69 QY |
2802 | [ZEBRA_VRF_UNREGISTER] = zread_vrf_unregister, |
2803 | [ZEBRA_VRF_LABEL] = zread_vrf_label, | |
2804 | [ZEBRA_BFD_CLIENT_REGISTER] = zebra_ptm_bfd_client_register, | |
bf094f69 QY |
2805 | [ZEBRA_INTERFACE_ENABLE_RADV] = zebra_interface_radv_enable, |
2806 | [ZEBRA_INTERFACE_DISABLE_RADV] = zebra_interface_radv_disable, | |
ea6b290b RW |
2807 | [ZEBRA_MPLS_LABELS_ADD] = zread_mpls_labels_add, |
2808 | [ZEBRA_MPLS_LABELS_DELETE] = zread_mpls_labels_delete, | |
2809 | [ZEBRA_MPLS_LABELS_REPLACE] = zread_mpls_labels_replace, | |
bf094f69 QY |
2810 | [ZEBRA_IPMR_ROUTE_STATS] = zebra_ipmr_route_stats, |
2811 | [ZEBRA_LABEL_MANAGER_CONNECT] = zread_label_manager_request, | |
f533be73 | 2812 | [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC] = zread_label_manager_request, |
bf094f69 QY |
2813 | [ZEBRA_GET_LABEL_CHUNK] = zread_label_manager_request, |
2814 | [ZEBRA_RELEASE_LABEL_CHUNK] = zread_label_manager_request, | |
2815 | [ZEBRA_FEC_REGISTER] = zread_fec_register, | |
2816 | [ZEBRA_FEC_UNREGISTER] = zread_fec_unregister, | |
2817 | [ZEBRA_ADVERTISE_DEFAULT_GW] = zebra_vxlan_advertise_gw_macip, | |
278e26de | 2818 | [ZEBRA_ADVERTISE_SVI_MACIP] = zebra_vxlan_advertise_svi_macip, |
bf094f69 QY |
2819 | [ZEBRA_ADVERTISE_SUBNET] = zebra_vxlan_advertise_subnet, |
2820 | [ZEBRA_ADVERTISE_ALL_VNI] = zebra_vxlan_advertise_all_vni, | |
2821 | [ZEBRA_REMOTE_VTEP_ADD] = zebra_vxlan_remote_vtep_add, | |
2822 | [ZEBRA_REMOTE_VTEP_DEL] = zebra_vxlan_remote_vtep_del, | |
2823 | [ZEBRA_REMOTE_MACIP_ADD] = zebra_vxlan_remote_macip_add, | |
2824 | [ZEBRA_REMOTE_MACIP_DEL] = zebra_vxlan_remote_macip_del, | |
3950b52c | 2825 | [ZEBRA_DUPLICATE_ADDR_DETECTION] = zebra_vxlan_dup_addr_detection, |
bf094f69 QY |
2826 | [ZEBRA_INTERFACE_SET_MASTER] = zread_interface_set_master, |
2827 | [ZEBRA_PW_ADD] = zread_pseudowire, | |
2828 | [ZEBRA_PW_DELETE] = zread_pseudowire, | |
2829 | [ZEBRA_PW_SET] = zread_pseudowire, | |
2830 | [ZEBRA_PW_UNSET] = zread_pseudowire, | |
2831 | [ZEBRA_RULE_ADD] = zread_rule, | |
2832 | [ZEBRA_RULE_DELETE] = zread_rule, | |
2833 | [ZEBRA_TABLE_MANAGER_CONNECT] = zread_table_manager_request, | |
2834 | [ZEBRA_GET_TABLE_CHUNK] = zread_table_manager_request, | |
2835 | [ZEBRA_RELEASE_TABLE_CHUNK] = zread_table_manager_request, | |
2836 | [ZEBRA_IPSET_CREATE] = zread_ipset, | |
2837 | [ZEBRA_IPSET_DESTROY] = zread_ipset, | |
2838 | [ZEBRA_IPSET_ENTRY_ADD] = zread_ipset_entry, | |
2839 | [ZEBRA_IPSET_ENTRY_DELETE] = zread_ipset_entry, | |
2840 | [ZEBRA_IPTABLE_ADD] = zread_iptable, | |
2841 | [ZEBRA_IPTABLE_DELETE] = zread_iptable, | |
fbac9605 | 2842 | [ZEBRA_VXLAN_FLOOD_CONTROL] = zebra_vxlan_flood_control, |
ecbbc3a7 | 2843 | [ZEBRA_VXLAN_SG_REPLAY] = zebra_vxlan_sg_replay, |
ee235396 SK |
2844 | [ZEBRA_MLAG_CLIENT_REGISTER] = zebra_mlag_client_register, |
2845 | [ZEBRA_MLAG_CLIENT_UNREGISTER] = zebra_mlag_client_unregister, | |
2846 | [ZEBRA_MLAG_FORWARD_MSG] = zebra_mlag_forward_client_msg, | |
b9e6727a | 2847 | [ZEBRA_CLIENT_CAPABILITIES] = zread_client_capabilities |
bf094f69 QY |
2848 | }; |
2849 | ||
727c9b99 QY |
2850 | #if defined(HANDLE_ZAPI_FUZZING) |
2851 | extern struct zebra_privs_t zserv_privs; | |
2852 | ||
2853 | static void zserv_write_incoming(struct stream *orig, uint16_t command) | |
2854 | { | |
2855 | char fname[MAXPATHLEN]; | |
2856 | struct stream *copy; | |
2857 | int fd = -1; | |
2858 | ||
2859 | copy = stream_dup(orig); | |
2860 | stream_set_getp(copy, 0); | |
2861 | ||
3c649c71 | 2862 | snprintf(fname, MAXPATHLEN, "%s/%u", frr_vtydir, command); |
6bb30c2c | 2863 | |
0cf6db21 | 2864 | frr_with_privs(&zserv_privs) { |
6bb30c2c DL |
2865 | fd = open(fname, O_CREAT | O_WRONLY | O_EXCL, 0644); |
2866 | } | |
727c9b99 QY |
2867 | stream_flush(copy, fd); |
2868 | close(fd); | |
727c9b99 QY |
2869 | stream_free(copy); |
2870 | } | |
2871 | #endif | |
2872 | ||
904e0d88 | 2873 | void zserv_handle_commands(struct zserv *client, struct stream *msg) |
bf094f69 | 2874 | { |
904e0d88 QY |
2875 | struct zmsghdr hdr; |
2876 | struct zebra_vrf *zvrf; | |
2877 | ||
aa8cb964 QY |
2878 | if (STREAM_READABLE(msg) > ZEBRA_MAX_PACKET_SIZ) { |
2879 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2880 | zlog_debug( | |
2881 | "ZAPI message is %zu bytes long but the maximum packet size is %u; dropping", | |
2882 | STREAM_READABLE(msg), ZEBRA_MAX_PACKET_SIZ); | |
2883 | return; | |
2884 | } | |
2885 | ||
904e0d88 | 2886 | zapi_parse_header(msg, &hdr); |
bf094f69 | 2887 | |
49b3b01f QY |
2888 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
2889 | zserv_log_message(NULL, msg, &hdr); | |
2890 | ||
727c9b99 QY |
2891 | #if defined(HANDLE_ZAPI_FUZZING) |
2892 | zserv_write_incoming(msg, hdr.command); | |
2893 | #endif | |
2894 | ||
904e0d88 QY |
2895 | hdr.length -= ZEBRA_HEADER_SIZE; |
2896 | ||
2897 | /* lookup vrf */ | |
2898 | zvrf = zebra_vrf_lookup_by_id(hdr.vrf_id); | |
9ab0b2a3 SW |
2899 | if (!zvrf) |
2900 | return zserv_error_no_vrf(client, &hdr, msg, zvrf); | |
904e0d88 | 2901 | |
aa360de7 | 2902 | if (hdr.command >= array_size(zserv_handlers) |
904e0d88 | 2903 | || zserv_handlers[hdr.command] == NULL) |
9ab0b2a3 SW |
2904 | return zserv_error_invalid_msg_type(client, &hdr, msg, zvrf); |
2905 | ||
2906 | zserv_handlers[hdr.command](client, &hdr, msg, zvrf); | |
bf094f69 | 2907 | } |