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bf094f69 | 1 | /* |
d8647095 | 2 | * Zebra API message creation & consumption. |
bf094f69 QY |
3 | * Portions: |
4 | * Copyright (C) 1997-1999 Kunihiro Ishiguro | |
5 | * Copyright (C) 2015-2018 Cumulus Networks, Inc. | |
6 | * et al. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the Free | |
10 | * Software Foundation; either version 2 of the License, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
16 | * more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | #include <libgen.h> | |
25 | ||
26 | #include "lib/prefix.h" | |
27 | #include "lib/command.h" | |
28 | #include "lib/if.h" | |
29 | #include "lib/thread.h" | |
30 | #include "lib/stream.h" | |
31 | #include "lib/memory.h" | |
32 | #include "lib/table.h" | |
33 | #include "lib/network.h" | |
34 | #include "lib/sockunion.h" | |
35 | #include "lib/log.h" | |
36 | #include "lib/zclient.h" | |
37 | #include "lib/privs.h" | |
38 | #include "lib/network.h" | |
39 | #include "lib/buffer.h" | |
40 | #include "lib/nexthop.h" | |
41 | #include "lib/vrf.h" | |
42 | #include "lib/libfrr.h" | |
43 | #include "lib/sockopt.h" | |
44 | ||
161e9ab7 | 45 | #include "zebra/zebra_router.h" |
bf094f69 QY |
46 | #include "zebra/rib.h" |
47 | #include "zebra/zebra_memory.h" | |
48 | #include "zebra/zebra_ns.h" | |
49 | #include "zebra/zebra_vrf.h" | |
50 | #include "zebra/router-id.h" | |
51 | #include "zebra/redistribute.h" | |
52 | #include "zebra/debug.h" | |
53 | #include "zebra/zebra_rnh.h" | |
54 | #include "zebra/rt_netlink.h" | |
55 | #include "zebra/interface.h" | |
56 | #include "zebra/zebra_ptm.h" | |
57 | #include "zebra/rtadv.h" | |
58 | #include "zebra/zebra_mpls.h" | |
59 | #include "zebra/zebra_mroute.h" | |
60 | #include "zebra/label_manager.h" | |
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" |
bf094f69 QY |
68 | |
69 | /* Encoding helpers -------------------------------------------------------- */ | |
70 | ||
71 | static void zserv_encode_interface(struct stream *s, struct interface *ifp) | |
72 | { | |
73 | /* Interface information. */ | |
74 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
75 | stream_putl(s, ifp->ifindex); | |
76 | stream_putc(s, ifp->status); | |
77 | stream_putq(s, ifp->flags); | |
78 | stream_putc(s, ifp->ptm_enable); | |
79 | stream_putc(s, ifp->ptm_status); | |
80 | stream_putl(s, ifp->metric); | |
81 | stream_putl(s, ifp->speed); | |
82 | stream_putl(s, ifp->mtu); | |
83 | stream_putl(s, ifp->mtu6); | |
84 | stream_putl(s, ifp->bandwidth); | |
85 | stream_putl(s, ifp->ll_type); | |
86 | stream_putl(s, ifp->hw_addr_len); | |
87 | if (ifp->hw_addr_len) | |
88 | stream_put(s, ifp->hw_addr, ifp->hw_addr_len); | |
89 | ||
90 | /* Then, Traffic Engineering parameters if any */ | |
91 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { | |
92 | stream_putc(s, 1); | |
93 | zebra_interface_link_params_write(s, ifp); | |
94 | } else | |
95 | stream_putc(s, 0); | |
96 | ||
97 | /* Write packet size. */ | |
98 | stream_putw_at(s, 0, stream_get_endp(s)); | |
99 | } | |
100 | ||
101 | static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) | |
102 | { | |
103 | struct vrf_data data; | |
104 | const char *netns_name = zvrf_ns_name(zvrf); | |
105 | ||
106 | data.l.table_id = zvrf->table_id; | |
107 | ||
108 | if (netns_name) | |
109 | strlcpy(data.l.netns_name, basename((char *)netns_name), | |
110 | NS_NAMSIZ); | |
111 | else | |
112 | memset(data.l.netns_name, 0, NS_NAMSIZ); | |
113 | /* Pass the tableid and the netns NAME */ | |
114 | stream_put(s, &data, sizeof(struct vrf_data)); | |
115 | /* Interface information. */ | |
116 | stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); | |
117 | /* Write packet size. */ | |
118 | stream_putw_at(s, 0, stream_get_endp(s)); | |
119 | } | |
120 | ||
121 | static int zserv_encode_nexthop(struct stream *s, struct nexthop *nexthop) | |
122 | { | |
a756969d | 123 | stream_putl(s, nexthop->vrf_id); |
bf094f69 QY |
124 | stream_putc(s, nexthop->type); |
125 | switch (nexthop->type) { | |
126 | case NEXTHOP_TYPE_IPV4: | |
127 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
128 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
129 | stream_putl(s, nexthop->ifindex); | |
130 | break; | |
131 | case NEXTHOP_TYPE_IPV6: | |
132 | stream_put(s, &nexthop->gate.ipv6, 16); | |
133 | break; | |
134 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
135 | stream_put(s, &nexthop->gate.ipv6, 16); | |
136 | stream_putl(s, nexthop->ifindex); | |
137 | break; | |
138 | case NEXTHOP_TYPE_IFINDEX: | |
139 | stream_putl(s, nexthop->ifindex); | |
140 | break; | |
141 | default: | |
142 | /* do nothing */ | |
143 | break; | |
144 | } | |
145 | return 1; | |
146 | } | |
147 | ||
148 | /* Send handlers ----------------------------------------------------------- */ | |
149 | ||
150 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ | |
151 | /* | |
152 | * This function is called in the following situations: | |
153 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
154 | * from the client. | |
155 | * - at startup, when zebra figures out the available interfaces | |
156 | * - when an interface is added (where support for | |
157 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
158 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
159 | * received) | |
160 | */ | |
161 | int zsend_interface_add(struct zserv *client, struct interface *ifp) | |
162 | { | |
163 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
164 | ||
165 | zclient_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); | |
166 | zserv_encode_interface(s, ifp); | |
167 | ||
168 | client->ifadd_cnt++; | |
21ccc0cf | 169 | return zserv_send_message(client, s); |
bf094f69 QY |
170 | } |
171 | ||
172 | /* Interface deletion from zebra daemon. */ | |
173 | int zsend_interface_delete(struct zserv *client, struct interface *ifp) | |
174 | { | |
175 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
176 | ||
177 | zclient_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); | |
178 | zserv_encode_interface(s, ifp); | |
179 | ||
180 | client->ifdel_cnt++; | |
21ccc0cf | 181 | return zserv_send_message(client, s); |
bf094f69 QY |
182 | } |
183 | ||
184 | int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) | |
185 | { | |
186 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
187 | ||
188 | zclient_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); | |
189 | zserv_encode_vrf(s, zvrf); | |
190 | ||
191 | client->vrfadd_cnt++; | |
21ccc0cf | 192 | return zserv_send_message(client, s); |
bf094f69 QY |
193 | } |
194 | ||
195 | /* VRF deletion from zebra daemon. */ | |
196 | int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) | |
197 | ||
198 | { | |
199 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
200 | ||
201 | zclient_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); | |
202 | zserv_encode_vrf(s, zvrf); | |
203 | ||
204 | client->vrfdel_cnt++; | |
21ccc0cf | 205 | return zserv_send_message(client, s); |
bf094f69 QY |
206 | } |
207 | ||
208 | int zsend_interface_link_params(struct zserv *client, struct interface *ifp) | |
209 | { | |
210 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
211 | ||
bf094f69 QY |
212 | if (!ifp->link_params) { |
213 | stream_free(s); | |
214 | return 0; | |
215 | } | |
216 | ||
217 | zclient_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); | |
218 | ||
219 | /* Add Interface Index */ | |
220 | stream_putl(s, ifp->ifindex); | |
221 | ||
222 | /* Then TE Link Parameters */ | |
223 | if (zebra_interface_link_params_write(s, ifp) == 0) { | |
224 | stream_free(s); | |
225 | return 0; | |
226 | } | |
227 | ||
228 | /* Write packet size. */ | |
229 | stream_putw_at(s, 0, stream_get_endp(s)); | |
230 | ||
21ccc0cf | 231 | return zserv_send_message(client, s); |
bf094f69 QY |
232 | } |
233 | ||
234 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or | |
235 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
236 | * | |
237 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
238 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
239 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
240 | * sent from zebra to the client | |
241 | * - redistribute new address info to all clients in the following situations | |
242 | * - at startup, when zebra figures out the available interfaces | |
243 | * - when an interface is added (where support for | |
244 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
245 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
246 | * received) | |
b1bd1015 | 247 | * - for the vty commands "ip address A.B.C.D/M [<label LINE>]" |
bf094f69 QY |
248 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" |
249 | * - when an RTM_NEWADDR message is received from the kernel, | |
250 | * | |
251 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
252 | * | |
253 | * zsend_interface_address(DELETE) | |
254 | * ^ | |
255 | * | | |
256 | * zebra_interface_address_delete_update | |
257 | * ^ ^ ^ | |
258 | * | | if_delete_update | |
259 | * | | | |
260 | * ip_address_uninstall connected_delete_ipv4 | |
261 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
262 | * ^ ^ | |
263 | * | | | |
264 | * | RTM_NEWADDR on routing/netlink socket | |
265 | * | | |
266 | * vty commands: | |
267 | * "no ip address A.B.C.D/M [label LINE]" | |
b1bd1015 | 268 | * "no ip address A.B.C.D/M" |
bf094f69 QY |
269 | * ["no ipv6 address X:X::X:X/M"] |
270 | * | |
271 | */ | |
272 | int zsend_interface_address(int cmd, struct zserv *client, | |
273 | struct interface *ifp, struct connected *ifc) | |
274 | { | |
275 | int blen; | |
276 | struct prefix *p; | |
277 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
278 | ||
279 | zclient_create_header(s, cmd, ifp->vrf_id); | |
280 | stream_putl(s, ifp->ifindex); | |
281 | ||
282 | /* Interface address flag. */ | |
283 | stream_putc(s, ifc->flags); | |
284 | ||
285 | /* Prefix information. */ | |
286 | p = ifc->address; | |
287 | stream_putc(s, p->family); | |
288 | blen = prefix_blen(p); | |
289 | stream_put(s, &p->u.prefix, blen); | |
290 | ||
291 | /* | |
292 | * XXX gnu version does not send prefixlen for | |
293 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
294 | * but zebra_interface_address_delete_read() in the gnu version | |
295 | * expects to find it | |
296 | */ | |
297 | stream_putc(s, p->prefixlen); | |
298 | ||
299 | /* Destination. */ | |
300 | p = ifc->destination; | |
301 | if (p) | |
302 | stream_put(s, &p->u.prefix, blen); | |
303 | else | |
304 | stream_put(s, NULL, blen); | |
305 | ||
306 | /* Write packet size. */ | |
307 | stream_putw_at(s, 0, stream_get_endp(s)); | |
308 | ||
309 | client->connected_rt_add_cnt++; | |
21ccc0cf | 310 | return zserv_send_message(client, s); |
bf094f69 QY |
311 | } |
312 | ||
313 | static int zsend_interface_nbr_address(int cmd, struct zserv *client, | |
314 | struct interface *ifp, | |
315 | struct nbr_connected *ifc) | |
316 | { | |
317 | int blen; | |
318 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
319 | struct prefix *p; | |
320 | ||
321 | zclient_create_header(s, cmd, ifp->vrf_id); | |
322 | stream_putl(s, ifp->ifindex); | |
323 | ||
324 | /* Prefix information. */ | |
325 | p = ifc->address; | |
326 | stream_putc(s, p->family); | |
327 | blen = prefix_blen(p); | |
328 | stream_put(s, &p->u.prefix, blen); | |
329 | ||
330 | /* | |
331 | * XXX gnu version does not send prefixlen for | |
332 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
333 | * but zebra_interface_address_delete_read() in the gnu version | |
334 | * expects to find it | |
335 | */ | |
336 | stream_putc(s, p->prefixlen); | |
337 | ||
338 | /* Write packet size. */ | |
339 | stream_putw_at(s, 0, stream_get_endp(s)); | |
340 | ||
21ccc0cf | 341 | return zserv_send_message(client, s); |
bf094f69 QY |
342 | } |
343 | ||
344 | /* Interface address addition. */ | |
345 | static void zebra_interface_nbr_address_add_update(struct interface *ifp, | |
346 | struct nbr_connected *ifc) | |
347 | { | |
348 | struct listnode *node, *nnode; | |
349 | struct zserv *client; | |
350 | struct prefix *p; | |
351 | ||
352 | if (IS_ZEBRA_DEBUG_EVENT) { | |
353 | char buf[INET6_ADDRSTRLEN]; | |
354 | ||
355 | p = ifc->address; | |
356 | zlog_debug( | |
357 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
358 | inet_ntop(p->family, &p->u.prefix, buf, | |
359 | INET6_ADDRSTRLEN), | |
360 | p->prefixlen, ifc->ifp->name); | |
361 | } | |
362 | ||
161e9ab7 | 363 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) |
bf094f69 QY |
364 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, |
365 | client, ifp, ifc); | |
366 | } | |
367 | ||
368 | /* Interface address deletion. */ | |
369 | static void zebra_interface_nbr_address_delete_update(struct interface *ifp, | |
370 | struct nbr_connected *ifc) | |
371 | { | |
372 | struct listnode *node, *nnode; | |
373 | struct zserv *client; | |
374 | struct prefix *p; | |
375 | ||
376 | if (IS_ZEBRA_DEBUG_EVENT) { | |
377 | char buf[INET6_ADDRSTRLEN]; | |
378 | ||
379 | p = ifc->address; | |
380 | zlog_debug( | |
381 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
382 | inet_ntop(p->family, &p->u.prefix, buf, | |
383 | INET6_ADDRSTRLEN), | |
384 | p->prefixlen, ifc->ifp->name); | |
385 | } | |
386 | ||
161e9ab7 | 387 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) |
bf094f69 QY |
388 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, |
389 | client, ifp, ifc); | |
390 | } | |
391 | ||
392 | /* Send addresses on interface to client */ | |
393 | int zsend_interface_addresses(struct zserv *client, struct interface *ifp) | |
394 | { | |
395 | struct listnode *cnode, *cnnode; | |
396 | struct connected *c; | |
397 | struct nbr_connected *nc; | |
398 | ||
399 | /* Send interface addresses. */ | |
400 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
401 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
402 | continue; | |
403 | ||
404 | if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
405 | ifp, c) | |
406 | < 0) | |
407 | return -1; | |
408 | } | |
409 | ||
410 | /* Send interface neighbors. */ | |
411 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { | |
412 | if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
413 | client, ifp, nc) | |
414 | < 0) | |
415 | return -1; | |
416 | } | |
417 | ||
418 | return 0; | |
419 | } | |
420 | ||
421 | /* Notify client about interface moving from one VRF to another. | |
422 | * Whether client is interested in old and new VRF is checked by caller. | |
423 | */ | |
424 | int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, | |
425 | vrf_id_t vrf_id) | |
426 | { | |
427 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
428 | ||
429 | zclient_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); | |
430 | ||
91d227b7 RW |
431 | /* Fill in the name of the interface and its new VRF (id) */ |
432 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
bf094f69 QY |
433 | stream_putl(s, vrf_id); |
434 | ||
435 | /* Write packet size. */ | |
436 | stream_putw_at(s, 0, stream_get_endp(s)); | |
437 | ||
438 | client->if_vrfchg_cnt++; | |
21ccc0cf | 439 | return zserv_send_message(client, s); |
bf094f69 QY |
440 | } |
441 | ||
442 | /* Add new nbr connected IPv6 address */ | |
443 | void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) | |
444 | { | |
445 | struct nbr_connected *ifc; | |
446 | struct prefix p; | |
447 | ||
448 | p.family = AF_INET6; | |
a85297a7 | 449 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
450 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
451 | ||
8b1766b1 QY |
452 | ifc = listnode_head(ifp->nbr_connected); |
453 | if (!ifc) { | |
bf094f69 QY |
454 | /* new addition */ |
455 | ifc = nbr_connected_new(); | |
456 | ifc->address = prefix_new(); | |
457 | ifc->ifp = ifp; | |
458 | listnode_add(ifp->nbr_connected, ifc); | |
459 | } | |
460 | ||
461 | prefix_copy(ifc->address, &p); | |
462 | ||
463 | zebra_interface_nbr_address_add_update(ifp, ifc); | |
464 | ||
465 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); | |
466 | } | |
467 | ||
468 | void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) | |
469 | { | |
470 | struct nbr_connected *ifc; | |
471 | struct prefix p; | |
472 | ||
473 | p.family = AF_INET6; | |
a85297a7 | 474 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
475 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
476 | ||
477 | ifc = nbr_connected_check(ifp, &p); | |
478 | if (!ifc) | |
479 | return; | |
480 | ||
481 | listnode_delete(ifp->nbr_connected, ifc); | |
482 | ||
483 | zebra_interface_nbr_address_delete_update(ifp, ifc); | |
484 | ||
485 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); | |
486 | ||
487 | nbr_connected_free(ifc); | |
488 | } | |
489 | ||
490 | /* | |
491 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
492 | * ZEBRA_INTERFACE_DOWN. | |
493 | * | |
494 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
495 | * the clients in one of 2 situations: | |
496 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
497 | * - a vty command modifying the bandwidth of an interface is received. | |
498 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
499 | */ | |
500 | int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) | |
501 | { | |
502 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
503 | ||
504 | zclient_create_header(s, cmd, ifp->vrf_id); | |
505 | zserv_encode_interface(s, ifp); | |
506 | ||
507 | if (cmd == ZEBRA_INTERFACE_UP) | |
508 | client->ifup_cnt++; | |
509 | else | |
510 | client->ifdown_cnt++; | |
511 | ||
21ccc0cf | 512 | return zserv_send_message(client, s); |
bf094f69 QY |
513 | } |
514 | ||
86391e56 MS |
515 | int zsend_redistribute_route(int cmd, struct zserv *client, |
516 | const struct prefix *p, | |
517 | const struct prefix *src_p, struct route_entry *re) | |
bf094f69 QY |
518 | { |
519 | struct zapi_route api; | |
520 | struct zapi_nexthop *api_nh; | |
521 | struct nexthop *nexthop; | |
522 | int count = 0; | |
34fa0870 | 523 | afi_t afi; |
bf094f69 QY |
524 | |
525 | memset(&api, 0, sizeof(api)); | |
526 | api.vrf_id = re->vrf_id; | |
527 | api.type = re->type; | |
e4081c0e | 528 | api.safi = SAFI_UNICAST; |
bf094f69 QY |
529 | api.instance = re->instance; |
530 | api.flags = re->flags; | |
531 | ||
34fa0870 DS |
532 | afi = family2afi(p->family); |
533 | switch (afi) { | |
534 | case AFI_IP: | |
535 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
536 | client->redist_v4_add_cnt++; | |
537 | else | |
538 | client->redist_v4_del_cnt++; | |
539 | break; | |
540 | case AFI_IP6: | |
541 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
542 | client->redist_v6_add_cnt++; | |
543 | else | |
544 | client->redist_v6_del_cnt++; | |
545 | break; | |
546 | default: | |
547 | break; | |
548 | } | |
549 | ||
bf094f69 QY |
550 | /* Prefix. */ |
551 | api.prefix = *p; | |
552 | if (src_p) { | |
553 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
554 | memcpy(&api.src_prefix, src_p, sizeof(api.src_prefix)); | |
555 | } | |
556 | ||
557 | /* Nexthops. */ | |
558 | if (re->nexthop_active_num) { | |
559 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
560 | api.nexthop_num = re->nexthop_active_num; | |
561 | } | |
562 | for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) { | |
563 | if (!CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
564 | continue; | |
565 | ||
566 | api_nh = &api.nexthops[count]; | |
567 | api_nh->vrf_id = nexthop->vrf_id; | |
568 | api_nh->type = nexthop->type; | |
569 | switch (nexthop->type) { | |
570 | case NEXTHOP_TYPE_BLACKHOLE: | |
571 | api_nh->bh_type = nexthop->bh_type; | |
572 | break; | |
573 | case NEXTHOP_TYPE_IPV4: | |
574 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
575 | break; | |
576 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
577 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
578 | api_nh->ifindex = nexthop->ifindex; | |
579 | break; | |
580 | case NEXTHOP_TYPE_IFINDEX: | |
581 | api_nh->ifindex = nexthop->ifindex; | |
582 | break; | |
583 | case NEXTHOP_TYPE_IPV6: | |
584 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
585 | break; | |
586 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
587 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
588 | api_nh->ifindex = nexthop->ifindex; | |
589 | } | |
590 | count++; | |
591 | } | |
592 | ||
593 | /* Attributes. */ | |
594 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
595 | api.distance = re->distance; | |
596 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); | |
597 | api.metric = re->metric; | |
598 | if (re->tag) { | |
599 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
600 | api.tag = re->tag; | |
601 | } | |
602 | SET_FLAG(api.message, ZAPI_MESSAGE_MTU); | |
603 | api.mtu = re->mtu; | |
604 | ||
605 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
606 | ||
607 | /* Encode route and send. */ | |
608 | if (zapi_route_encode(cmd, s, &api) < 0) { | |
609 | stream_free(s); | |
610 | return -1; | |
611 | } | |
612 | ||
613 | if (IS_ZEBRA_DEBUG_SEND) { | |
614 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 615 | |
bf094f69 QY |
616 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
617 | ||
618 | zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %s", | |
619 | __func__, zserv_command_string(cmd), | |
620 | zebra_route_string(client->proto), | |
621 | zebra_route_string(api.type), api.vrf_id, | |
622 | buf_prefix); | |
623 | } | |
21ccc0cf | 624 | return zserv_send_message(client, s); |
bf094f69 QY |
625 | } |
626 | ||
627 | /* | |
628 | * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if | |
629 | * nexthop is not found on mrib. Returns both route metric and protocol | |
630 | * distance. | |
631 | */ | |
632 | static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, | |
633 | struct in_addr addr, | |
634 | struct route_entry *re, | |
635 | struct zebra_vrf *zvrf) | |
636 | { | |
637 | struct stream *s; | |
638 | unsigned long nump; | |
639 | uint8_t num; | |
640 | struct nexthop *nexthop; | |
641 | ||
642 | /* Get output stream. */ | |
643 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
644 | stream_reset(s); | |
645 | ||
646 | /* Fill in result. */ | |
647 | zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); | |
648 | stream_put_in_addr(s, &addr); | |
649 | ||
650 | if (re) { | |
651 | stream_putc(s, re->distance); | |
652 | stream_putl(s, re->metric); | |
653 | num = 0; | |
8b1766b1 QY |
654 | /* remember position for nexthop_num */ |
655 | nump = stream_get_endp(s); | |
656 | /* reserve room for nexthop_num */ | |
657 | stream_putc(s, 0); | |
658 | /* | |
659 | * Only non-recursive routes are elegible to resolve the | |
660 | * nexthop we are looking up. Therefore, we will just iterate | |
661 | * over the top chain of nexthops. | |
662 | */ | |
bf094f69 QY |
663 | for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) |
664 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
665 | num += zserv_encode_nexthop(s, nexthop); | |
666 | ||
8b1766b1 QY |
667 | /* store nexthop_num */ |
668 | stream_putc_at(s, nump, num); | |
bf094f69 QY |
669 | } else { |
670 | stream_putc(s, 0); /* distance */ | |
671 | stream_putl(s, 0); /* metric */ | |
672 | stream_putc(s, 0); /* nexthop_num */ | |
673 | } | |
674 | ||
675 | stream_putw_at(s, 0, stream_get_endp(s)); | |
676 | ||
21ccc0cf | 677 | return zserv_send_message(client, s); |
bf094f69 QY |
678 | } |
679 | ||
86391e56 MS |
680 | /* |
681 | * Common utility send route notification, called from a path using a | |
682 | * route_entry and from a path using a dataplane context. | |
683 | */ | |
684 | static int route_notify_internal(const struct prefix *p, int type, | |
685 | uint16_t instance, vrf_id_t vrf_id, | |
686 | uint32_t table_id, | |
687 | enum zapi_route_notify_owner note) | |
bf094f69 QY |
688 | { |
689 | struct zserv *client; | |
690 | struct stream *s; | |
691 | uint8_t blen; | |
692 | ||
86391e56 | 693 | client = zserv_find_client(type, instance); |
bf094f69 QY |
694 | if (!client || !client->notify_owner) { |
695 | if (IS_ZEBRA_DEBUG_PACKET) { | |
696 | char buff[PREFIX_STRLEN]; | |
697 | ||
698 | zlog_debug( | |
699 | "Not Notifying Owner: %u about prefix %s(%u) %d vrf: %u", | |
86391e56 MS |
700 | type, prefix2str(p, buff, sizeof(buff)), |
701 | table_id, note, vrf_id); | |
bf094f69 QY |
702 | } |
703 | return 0; | |
704 | } | |
705 | ||
706 | if (IS_ZEBRA_DEBUG_PACKET) { | |
707 | char buff[PREFIX_STRLEN]; | |
708 | ||
709 | zlog_debug("Notifying Owner: %u about prefix %s(%u) %d vrf: %u", | |
86391e56 MS |
710 | type, prefix2str(p, buff, sizeof(buff)), |
711 | table_id, note, vrf_id); | |
bf094f69 QY |
712 | } |
713 | ||
714 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
715 | stream_reset(s); | |
716 | ||
86391e56 | 717 | zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, vrf_id); |
bf094f69 QY |
718 | |
719 | stream_put(s, ¬e, sizeof(note)); | |
720 | ||
721 | stream_putc(s, p->family); | |
722 | ||
723 | blen = prefix_blen(p); | |
724 | stream_putc(s, p->prefixlen); | |
725 | stream_put(s, &p->u.prefix, blen); | |
726 | ||
86391e56 | 727 | stream_putl(s, table_id); |
bf094f69 QY |
728 | |
729 | stream_putw_at(s, 0, stream_get_endp(s)); | |
730 | ||
21ccc0cf | 731 | return zserv_send_message(client, s); |
bf094f69 QY |
732 | } |
733 | ||
86391e56 MS |
734 | int zsend_route_notify_owner(struct route_entry *re, const struct prefix *p, |
735 | enum zapi_route_notify_owner note) | |
736 | { | |
737 | return (route_notify_internal(p, re->type, re->instance, re->vrf_id, | |
738 | re->table, note)); | |
739 | } | |
740 | ||
7cdb1a84 MS |
741 | /* |
742 | * Route-owner notification using info from dataplane update context. | |
743 | */ | |
25779064 | 744 | int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx *ctx, |
7cdb1a84 MS |
745 | enum zapi_route_notify_owner note) |
746 | { | |
747 | return (route_notify_internal(dplane_ctx_get_dest(ctx), | |
748 | dplane_ctx_get_type(ctx), | |
749 | dplane_ctx_get_instance(ctx), | |
750 | dplane_ctx_get_vrf(ctx), | |
751 | dplane_ctx_get_table(ctx), | |
752 | note)); | |
86391e56 MS |
753 | } |
754 | ||
bf094f69 QY |
755 | void zsend_rule_notify_owner(struct zebra_pbr_rule *rule, |
756 | enum zapi_rule_notify_owner note) | |
757 | { | |
758 | struct listnode *node; | |
759 | struct zserv *client; | |
760 | struct stream *s; | |
761 | ||
762 | if (IS_ZEBRA_DEBUG_PACKET) | |
763 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
764 | rule->rule.unique); | |
765 | ||
161e9ab7 | 766 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
767 | if (rule->sock == client->sock) |
768 | break; | |
769 | } | |
770 | ||
771 | if (!client) | |
772 | return; | |
773 | ||
774 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
775 | ||
776 | zclient_create_header(s, ZEBRA_RULE_NOTIFY_OWNER, VRF_DEFAULT); | |
777 | stream_put(s, ¬e, sizeof(note)); | |
778 | stream_putl(s, rule->rule.seq); | |
779 | stream_putl(s, rule->rule.priority); | |
780 | stream_putl(s, rule->rule.unique); | |
781 | if (rule->ifp) | |
782 | stream_putl(s, rule->ifp->ifindex); | |
783 | else | |
784 | stream_putl(s, 0); | |
785 | ||
786 | stream_putw_at(s, 0, stream_get_endp(s)); | |
787 | ||
21ccc0cf | 788 | zserv_send_message(client, s); |
bf094f69 QY |
789 | } |
790 | ||
791 | void zsend_ipset_notify_owner(struct zebra_pbr_ipset *ipset, | |
792 | enum zapi_ipset_notify_owner note) | |
793 | { | |
794 | struct listnode *node; | |
795 | struct zserv *client; | |
796 | struct stream *s; | |
797 | ||
798 | if (IS_ZEBRA_DEBUG_PACKET) | |
799 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
800 | ipset->unique); | |
801 | ||
161e9ab7 | 802 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
803 | if (ipset->sock == client->sock) |
804 | break; | |
805 | } | |
806 | ||
807 | if (!client) | |
808 | return; | |
809 | ||
810 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
811 | ||
812 | zclient_create_header(s, ZEBRA_IPSET_NOTIFY_OWNER, VRF_DEFAULT); | |
813 | stream_put(s, ¬e, sizeof(note)); | |
814 | stream_putl(s, ipset->unique); | |
815 | stream_put(s, ipset->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
816 | stream_putw_at(s, 0, stream_get_endp(s)); | |
817 | ||
21ccc0cf | 818 | zserv_send_message(client, s); |
bf094f69 QY |
819 | } |
820 | ||
821 | void zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry *ipset, | |
822 | enum zapi_ipset_entry_notify_owner note) | |
823 | { | |
824 | struct listnode *node; | |
825 | struct zserv *client; | |
826 | struct stream *s; | |
827 | ||
828 | if (IS_ZEBRA_DEBUG_PACKET) | |
829 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
830 | ipset->unique); | |
831 | ||
161e9ab7 | 832 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
833 | if (ipset->sock == client->sock) |
834 | break; | |
835 | } | |
836 | ||
837 | if (!client) | |
838 | return; | |
839 | ||
840 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
841 | ||
842 | zclient_create_header(s, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER, VRF_DEFAULT); | |
843 | stream_put(s, ¬e, sizeof(note)); | |
844 | stream_putl(s, ipset->unique); | |
845 | stream_put(s, ipset->backpointer->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
846 | stream_putw_at(s, 0, stream_get_endp(s)); | |
847 | ||
21ccc0cf | 848 | zserv_send_message(client, s); |
bf094f69 QY |
849 | } |
850 | ||
851 | void zsend_iptable_notify_owner(struct zebra_pbr_iptable *iptable, | |
852 | enum zapi_iptable_notify_owner note) | |
853 | { | |
854 | struct listnode *node; | |
855 | struct zserv *client; | |
856 | struct stream *s; | |
857 | ||
858 | if (IS_ZEBRA_DEBUG_PACKET) | |
859 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
860 | iptable->unique); | |
861 | ||
161e9ab7 | 862 | for (ALL_LIST_ELEMENTS_RO(zrouter.client_list, node, client)) { |
bf094f69 QY |
863 | if (iptable->sock == client->sock) |
864 | break; | |
865 | } | |
866 | ||
867 | if (!client) | |
868 | return; | |
869 | ||
870 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
871 | ||
872 | zclient_create_header(s, ZEBRA_IPTABLE_NOTIFY_OWNER, VRF_DEFAULT); | |
873 | stream_put(s, ¬e, sizeof(note)); | |
874 | stream_putl(s, iptable->unique); | |
875 | stream_putw_at(s, 0, stream_get_endp(s)); | |
876 | ||
21ccc0cf | 877 | zserv_send_message(client, s); |
bf094f69 QY |
878 | } |
879 | ||
880 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ | |
881 | int zsend_router_id_update(struct zserv *client, struct prefix *p, | |
882 | vrf_id_t vrf_id) | |
883 | { | |
884 | int blen; | |
885 | ||
886 | /* Check this client need interface information. */ | |
887 | if (!vrf_bitmap_check(client->ridinfo, vrf_id)) | |
888 | return 0; | |
889 | ||
890 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
891 | ||
892 | /* Message type. */ | |
893 | zclient_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); | |
894 | ||
895 | /* Prefix information. */ | |
896 | stream_putc(s, p->family); | |
897 | blen = prefix_blen(p); | |
898 | stream_put(s, &p->u.prefix, blen); | |
899 | stream_putc(s, p->prefixlen); | |
900 | ||
901 | /* Write packet size. */ | |
902 | stream_putw_at(s, 0, stream_get_endp(s)); | |
903 | ||
21ccc0cf | 904 | return zserv_send_message(client, s); |
bf094f69 QY |
905 | } |
906 | ||
907 | /* | |
908 | * Function used by Zebra to send a PW status update to LDP daemon | |
909 | */ | |
910 | int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) | |
911 | { | |
912 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
913 | ||
914 | zclient_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); | |
915 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
916 | stream_putl(s, pw->ifindex); | |
917 | stream_putl(s, pw->status); | |
918 | ||
919 | /* Put length at the first point of the stream. */ | |
920 | stream_putw_at(s, 0, stream_get_endp(s)); | |
921 | ||
21ccc0cf | 922 | return zserv_send_message(client, s); |
bf094f69 QY |
923 | } |
924 | ||
925 | /* Send response to a get label chunk request to client */ | |
926 | static int zsend_assign_label_chunk_response(struct zserv *client, | |
927 | vrf_id_t vrf_id, | |
928 | struct label_manager_chunk *lmc) | |
929 | { | |
930 | int ret; | |
931 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
932 | ||
933 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); | |
934 | ||
935 | if (lmc) { | |
5dffb0e9 FR |
936 | /* proto */ |
937 | stream_putc(s, lmc->proto); | |
938 | /* instance */ | |
939 | stream_putw(s, lmc->instance); | |
bf094f69 QY |
940 | /* keep */ |
941 | stream_putc(s, lmc->keep); | |
942 | /* start and end labels */ | |
943 | stream_putl(s, lmc->start); | |
944 | stream_putl(s, lmc->end); | |
945 | } | |
946 | ||
947 | /* Write packet size. */ | |
948 | stream_putw_at(s, 0, stream_get_endp(s)); | |
949 | ||
950 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
951 | stream_free(s); | |
952 | return ret; | |
953 | } | |
954 | ||
955 | /* Send response to a label manager connect request to client */ | |
956 | static int zsend_label_manager_connect_response(struct zserv *client, | |
957 | vrf_id_t vrf_id, | |
958 | unsigned short result) | |
959 | { | |
960 | int ret; | |
961 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
962 | ||
963 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); | |
964 | ||
5dffb0e9 FR |
965 | /* proto */ |
966 | stream_putc(s, client->proto); | |
967 | ||
968 | /* instance */ | |
969 | stream_putw(s, client->instance); | |
970 | ||
bf094f69 QY |
971 | /* result */ |
972 | stream_putc(s, result); | |
973 | ||
974 | /* Write packet size. */ | |
975 | stream_putw_at(s, 0, stream_get_endp(s)); | |
976 | ||
977 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
978 | stream_free(s); | |
979 | ||
980 | return ret; | |
981 | } | |
982 | ||
983 | /* Send response to a get table chunk request to client */ | |
984 | static int zsend_assign_table_chunk_response(struct zserv *client, | |
985 | vrf_id_t vrf_id, | |
986 | struct table_manager_chunk *tmc) | |
987 | { | |
988 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
989 | ||
990 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, vrf_id); | |
991 | ||
992 | if (tmc) { | |
993 | /* start and end labels */ | |
994 | stream_putl(s, tmc->start); | |
995 | stream_putl(s, tmc->end); | |
996 | } | |
997 | ||
998 | /* Write packet size. */ | |
999 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1000 | ||
21ccc0cf | 1001 | return zserv_send_message(client, s); |
bf094f69 QY |
1002 | } |
1003 | ||
1004 | static int zsend_table_manager_connect_response(struct zserv *client, | |
1005 | vrf_id_t vrf_id, | |
1006 | uint16_t result) | |
1007 | { | |
1008 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1009 | ||
1010 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, vrf_id); | |
1011 | ||
1012 | /* result */ | |
1013 | stream_putc(s, result); | |
1014 | ||
1015 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1016 | ||
21ccc0cf | 1017 | return zserv_send_message(client, s); |
bf094f69 QY |
1018 | } |
1019 | ||
1020 | /* Inbound message handling ------------------------------------------------ */ | |
1021 | ||
1022 | int cmd2type[] = { | |
1023 | [ZEBRA_NEXTHOP_REGISTER] = RNH_NEXTHOP_TYPE, | |
1024 | [ZEBRA_NEXTHOP_UNREGISTER] = RNH_NEXTHOP_TYPE, | |
1025 | [ZEBRA_IMPORT_ROUTE_REGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1026 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1027 | }; | |
1028 | ||
1029 | /* Nexthop register */ | |
1030 | static void zread_rnh_register(ZAPI_HANDLER_ARGS) | |
1031 | { | |
1032 | struct rnh *rnh; | |
1033 | struct stream *s; | |
1034 | struct prefix p; | |
1035 | unsigned short l = 0; | |
1036 | uint8_t flags = 0; | |
1037 | uint16_t type = cmd2type[hdr->command]; | |
1d30d1f4 | 1038 | bool exist; |
906b54dd DS |
1039 | bool flag_changed = false; |
1040 | uint8_t orig_flags; | |
bf094f69 QY |
1041 | |
1042 | if (IS_ZEBRA_DEBUG_NHT) | |
1043 | zlog_debug( | |
1044 | "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u\n", | |
1045 | zebra_route_string(client->proto), hdr->length, | |
1046 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route", | |
1047 | zvrf->vrf->vrf_id); | |
1048 | ||
1049 | s = msg; | |
1050 | ||
1051 | client->nh_reg_time = monotime(NULL); | |
1052 | ||
1053 | while (l < hdr->length) { | |
1054 | STREAM_GETC(s, flags); | |
1055 | STREAM_GETW(s, p.family); | |
1056 | STREAM_GETC(s, p.prefixlen); | |
1057 | l += 4; | |
1058 | if (p.family == AF_INET) { | |
ab5990d8 | 1059 | client->v4_nh_watch_add_cnt++; |
bf094f69 | 1060 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1061 | zlog_debug( |
bf094f69 QY |
1062 | "%s: Specified prefix hdr->length %d is too large for a v4 address", |
1063 | __PRETTY_FUNCTION__, p.prefixlen); | |
1064 | return; | |
1065 | } | |
1066 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1067 | l += IPV4_MAX_BYTELEN; | |
1068 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1069 | client->v6_nh_watch_add_cnt++; |
bf094f69 | 1070 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1071 | zlog_debug( |
bf094f69 QY |
1072 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
1073 | __PRETTY_FUNCTION__, p.prefixlen); | |
1074 | return; | |
1075 | } | |
1076 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1077 | l += IPV6_MAX_BYTELEN; | |
1078 | } else { | |
af4c2728 | 1079 | flog_err( |
e914ccbe | 1080 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1081 | "rnh_register: Received unknown family type %d\n", |
1082 | p.family); | |
1083 | return; | |
1084 | } | |
1d30d1f4 DS |
1085 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type, &exist); |
1086 | if (!rnh) | |
1087 | return; | |
1088 | ||
906b54dd | 1089 | orig_flags = rnh->flags; |
bf094f69 QY |
1090 | if (type == RNH_NEXTHOP_TYPE) { |
1091 | if (flags | |
1092 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1093 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1094 | else if (!flags | |
1095 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1096 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1097 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
1098 | if (flags | |
1099 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
1100 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1101 | else if (!flags | |
1102 | && CHECK_FLAG(rnh->flags, | |
1103 | ZEBRA_NHT_EXACT_MATCH)) | |
1104 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1105 | } | |
1106 | ||
906b54dd DS |
1107 | if (orig_flags != rnh->flags) |
1108 | flag_changed = true; | |
1109 | ||
bf094f69 | 1110 | /* Anything not AF_INET/INET6 has been filtered out above */ |
906b54dd | 1111 | if (!exist || flag_changed) |
73bf60a0 RW |
1112 | zebra_evaluate_rnh(zvrf, family2afi(p.family), 1, type, |
1113 | &p); | |
dd25a6b3 DS |
1114 | |
1115 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
bf094f69 QY |
1116 | } |
1117 | ||
1118 | stream_failure: | |
1119 | return; | |
1120 | } | |
1121 | ||
1122 | /* Nexthop register */ | |
1123 | static void zread_rnh_unregister(ZAPI_HANDLER_ARGS) | |
1124 | { | |
1125 | struct rnh *rnh; | |
1126 | struct stream *s; | |
1127 | struct prefix p; | |
1128 | unsigned short l = 0; | |
1129 | uint16_t type = cmd2type[hdr->command]; | |
1130 | ||
1131 | if (IS_ZEBRA_DEBUG_NHT) | |
1132 | zlog_debug( | |
1133 | "rnh_unregister msg from client %s: hdr->length=%d vrf: %u\n", | |
1134 | zebra_route_string(client->proto), hdr->length, | |
1135 | zvrf->vrf->vrf_id); | |
1136 | ||
1137 | s = msg; | |
1138 | ||
1139 | while (l < hdr->length) { | |
1140 | uint8_t flags; | |
1141 | ||
1142 | STREAM_GETC(s, flags); | |
1143 | if (flags != 0) | |
1144 | goto stream_failure; | |
1145 | ||
1146 | STREAM_GETW(s, p.family); | |
1147 | STREAM_GETC(s, p.prefixlen); | |
1148 | l += 4; | |
1149 | if (p.family == AF_INET) { | |
ab5990d8 | 1150 | client->v4_nh_watch_rem_cnt++; |
bf094f69 | 1151 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1152 | zlog_debug( |
bf094f69 QY |
1153 | "%s: Specified prefix hdr->length %d is to large for a v4 address", |
1154 | __PRETTY_FUNCTION__, p.prefixlen); | |
1155 | return; | |
1156 | } | |
1157 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1158 | l += IPV4_MAX_BYTELEN; | |
1159 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1160 | client->v6_nh_watch_rem_cnt++; |
bf094f69 | 1161 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1162 | zlog_debug( |
bf094f69 QY |
1163 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
1164 | __PRETTY_FUNCTION__, p.prefixlen); | |
1165 | return; | |
1166 | } | |
1167 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1168 | l += IPV6_MAX_BYTELEN; | |
1169 | } else { | |
af4c2728 | 1170 | flog_err( |
e914ccbe | 1171 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1172 | "rnh_register: Received unknown family type %d\n", |
1173 | p.family); | |
1174 | return; | |
1175 | } | |
1176 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
1177 | if (rnh) { | |
1178 | client->nh_dereg_time = monotime(NULL); | |
1179 | zebra_remove_rnh_client(rnh, client, type); | |
1180 | } | |
1181 | } | |
1182 | stream_failure: | |
1183 | return; | |
1184 | } | |
1185 | ||
1186 | #define ZEBRA_MIN_FEC_LENGTH 5 | |
1187 | ||
1188 | /* FEC register */ | |
1189 | static void zread_fec_register(ZAPI_HANDLER_ARGS) | |
1190 | { | |
1191 | struct stream *s; | |
1192 | unsigned short l = 0; | |
1193 | struct prefix p; | |
1194 | uint16_t flags; | |
57592a53 | 1195 | uint32_t label = MPLS_INVALID_LABEL; |
bf094f69 QY |
1196 | uint32_t label_index = MPLS_INVALID_LABEL_INDEX; |
1197 | ||
1198 | s = msg; | |
1199 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1200 | if (!zvrf) | |
8b1766b1 | 1201 | return; |
bf094f69 QY |
1202 | |
1203 | /* | |
1204 | * The minimum amount of data that can be sent for one fec | |
1205 | * registration | |
1206 | */ | |
1207 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1208 | flog_err( |
e914ccbe | 1209 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1210 | "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode", |
1211 | hdr->length); | |
1212 | return; | |
1213 | } | |
1214 | ||
1215 | while (l < hdr->length) { | |
1216 | STREAM_GETW(s, flags); | |
1217 | memset(&p, 0, sizeof(p)); | |
1218 | STREAM_GETW(s, p.family); | |
1219 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1220 | flog_err( |
e914ccbe | 1221 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1222 | "fec_register: Received unknown family type %d\n", |
1223 | p.family); | |
1224 | return; | |
1225 | } | |
1226 | STREAM_GETC(s, p.prefixlen); | |
1227 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1228 | || (p.family == AF_INET6 | |
1229 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1230 | zlog_debug( |
bf094f69 QY |
1231 | "%s: Specified prefix hdr->length: %d is to long for %d", |
1232 | __PRETTY_FUNCTION__, p.prefixlen, p.family); | |
1233 | return; | |
1234 | } | |
1235 | l += 5; | |
1236 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1237 | l += PSIZE(p.prefixlen); | |
57592a53 AD |
1238 | if (flags & ZEBRA_FEC_REGISTER_LABEL) { |
1239 | STREAM_GETL(s, label); | |
1240 | l += 4; | |
1241 | } else if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { | |
bf094f69 QY |
1242 | STREAM_GETL(s, label_index); |
1243 | l += 4; | |
57592a53 AD |
1244 | } |
1245 | ||
1246 | zebra_mpls_fec_register(zvrf, &p, label, label_index, client); | |
bf094f69 QY |
1247 | } |
1248 | ||
1249 | stream_failure: | |
1250 | return; | |
1251 | } | |
1252 | ||
1253 | /* FEC unregister */ | |
1254 | static void zread_fec_unregister(ZAPI_HANDLER_ARGS) | |
1255 | { | |
1256 | struct stream *s; | |
1257 | unsigned short l = 0; | |
1258 | struct prefix p; | |
1259 | uint16_t flags; | |
1260 | ||
1261 | s = msg; | |
1262 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1263 | if (!zvrf) | |
8b1766b1 | 1264 | return; |
bf094f69 QY |
1265 | |
1266 | /* | |
1267 | * The minimum amount of data that can be sent for one | |
1268 | * fec unregistration | |
1269 | */ | |
1270 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1271 | flog_err( |
e914ccbe | 1272 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1273 | "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode", |
1274 | hdr->length); | |
1275 | return; | |
1276 | } | |
1277 | ||
1278 | while (l < hdr->length) { | |
1279 | STREAM_GETW(s, flags); | |
1280 | if (flags != 0) | |
1281 | goto stream_failure; | |
1282 | ||
1283 | memset(&p, 0, sizeof(p)); | |
1284 | STREAM_GETW(s, p.family); | |
1285 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1286 | flog_err( |
e914ccbe | 1287 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1288 | "fec_unregister: Received unknown family type %d\n", |
1289 | p.family); | |
1290 | return; | |
1291 | } | |
1292 | STREAM_GETC(s, p.prefixlen); | |
1293 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1294 | || (p.family == AF_INET6 | |
1295 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1296 | zlog_debug( |
bf094f69 QY |
1297 | "%s: Received prefix hdr->length %d which is greater than %d can support", |
1298 | __PRETTY_FUNCTION__, p.prefixlen, p.family); | |
1299 | return; | |
1300 | } | |
1301 | l += 5; | |
1302 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1303 | l += PSIZE(p.prefixlen); | |
1304 | zebra_mpls_fec_unregister(zvrf, &p, client); | |
1305 | } | |
1306 | ||
1307 | stream_failure: | |
1308 | return; | |
1309 | } | |
1310 | ||
1311 | ||
1312 | /* | |
1313 | * Register zebra server interface information. | |
1314 | * Send current all interface and address information. | |
1315 | */ | |
1316 | static void zread_interface_add(ZAPI_HANDLER_ARGS) | |
1317 | { | |
1318 | struct vrf *vrf; | |
1319 | struct interface *ifp; | |
1320 | ||
bf094f69 QY |
1321 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { |
1322 | FOR_ALL_INTERFACES (vrf, ifp) { | |
1323 | /* Skip pseudo interface. */ | |
1324 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1325 | continue; | |
1326 | ||
1327 | zsend_interface_add(client, ifp); | |
27ecbea3 | 1328 | zsend_interface_link_params(client, ifp); |
bf094f69 QY |
1329 | zsend_interface_addresses(client, ifp); |
1330 | } | |
1331 | } | |
1332 | } | |
1333 | ||
1334 | /* Unregister zebra server interface information. */ | |
1335 | static void zread_interface_delete(ZAPI_HANDLER_ARGS) | |
1336 | { | |
bf094f69 QY |
1337 | } |
1338 | ||
1339 | void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, | |
1340 | const unsigned int nexthop_num) | |
1341 | { | |
1342 | if (nexthop_num > multipath_num) { | |
1343 | char buff[PREFIX2STR_BUFFER]; | |
8b1766b1 | 1344 | |
bf094f69 | 1345 | prefix2str(p, buff, sizeof(buff)); |
9df414fe | 1346 | flog_warn( |
e914ccbe | 1347 | EC_ZEBRA_MORE_NH_THAN_MULTIPATH, |
bf094f69 QY |
1348 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", |
1349 | caller, buff, nexthop_num, multipath_num); | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | static void zread_route_add(ZAPI_HANDLER_ARGS) | |
1354 | { | |
1355 | struct stream *s; | |
1356 | struct zapi_route api; | |
1357 | struct zapi_nexthop *api_nh; | |
1358 | afi_t afi; | |
1359 | struct prefix_ipv6 *src_p = NULL; | |
1360 | struct route_entry *re; | |
1361 | struct nexthop *nexthop = NULL; | |
1362 | int i, ret; | |
1363 | vrf_id_t vrf_id = 0; | |
1364 | struct ipaddr vtep_ip; | |
1365 | ||
1366 | s = msg; | |
1367 | if (zapi_route_decode(s, &api) < 0) { | |
1368 | if (IS_ZEBRA_DEBUG_RECV) | |
1369 | zlog_debug("%s: Unable to decode zapi_route sent", | |
1370 | __PRETTY_FUNCTION__); | |
1371 | return; | |
1372 | } | |
1373 | ||
1374 | if (IS_ZEBRA_DEBUG_RECV) { | |
1375 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 1376 | |
bf094f69 QY |
1377 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
1378 | zlog_debug("%s: p=%s, ZAPI_MESSAGE_LABEL: %sset, flags=0x%x", | |
1379 | __func__, buf_prefix, | |
1380 | (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) ? "" | |
1381 | : "un"), | |
1382 | api.flags); | |
1383 | } | |
1384 | ||
1385 | /* Allocate new route. */ | |
1386 | vrf_id = zvrf_id(zvrf); | |
1387 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1388 | re->type = api.type; | |
1389 | re->instance = api.instance; | |
1390 | re->flags = api.flags; | |
1391 | re->uptime = time(NULL); | |
1392 | re->vrf_id = vrf_id; | |
1393 | if (api.tableid && vrf_id == VRF_DEFAULT) | |
1394 | re->table = api.tableid; | |
1395 | else | |
1396 | re->table = zvrf->table_id; | |
1397 | ||
7fcb24bb RW |
1398 | if (!CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP) |
1399 | || api.nexthop_num == 0) { | |
1400 | char buf_prefix[PREFIX_STRLEN]; | |
1401 | ||
1402 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); | |
1403 | flog_warn(EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS, | |
1404 | "%s: received a route without nexthops for prefix %s", | |
1405 | __func__, buf_prefix); | |
1406 | XFREE(MTYPE_RE, re); | |
1407 | return; | |
1408 | } | |
1409 | ||
bf094f69 QY |
1410 | /* |
1411 | * TBD should _all_ of the nexthop add operations use | |
1412 | * api_nh->vrf_id instead of re->vrf_id ? I only changed | |
1413 | * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6. | |
1414 | */ | |
7fcb24bb RW |
1415 | for (i = 0; i < api.nexthop_num; i++) { |
1416 | api_nh = &api.nexthops[i]; | |
1417 | ifindex_t ifindex = 0; | |
1418 | ||
1419 | if (IS_ZEBRA_DEBUG_RECV) | |
1420 | zlog_debug("nh type %d", api_nh->type); | |
1421 | ||
1422 | switch (api_nh->type) { | |
1423 | case NEXTHOP_TYPE_IFINDEX: | |
1424 | nexthop = route_entry_nexthop_ifindex_add( | |
1425 | re, api_nh->ifindex, api_nh->vrf_id); | |
1426 | break; | |
1427 | case NEXTHOP_TYPE_IPV4: | |
1428 | if (IS_ZEBRA_DEBUG_RECV) { | |
1429 | char nhbuf[INET6_ADDRSTRLEN] = {0}; | |
1430 | ||
1431 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1432 | INET6_ADDRSTRLEN); | |
1433 | zlog_debug("%s: nh=%s, vrf_id=%d", __func__, | |
1434 | nhbuf, api_nh->vrf_id); | |
1435 | } | |
1436 | nexthop = route_entry_nexthop_ipv4_add( | |
1437 | re, &api_nh->gate.ipv4, NULL, api_nh->vrf_id); | |
1438 | break; | |
1439 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1440 | ||
1441 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
e1e71450 | 1442 | ifindex = api_nh->ifindex; |
7fcb24bb RW |
1443 | if (IS_ZEBRA_DEBUG_RECV) { |
1444 | char nhbuf[INET6_ADDRSTRLEN] = {0}; | |
1445 | ||
1446 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1447 | INET6_ADDRSTRLEN); | |
1448 | zlog_debug( | |
1449 | "%s: nh=%s, vrf_id=%d (re->vrf_id=%d), ifindex=%d", | |
1450 | __func__, nhbuf, api_nh->vrf_id, | |
1451 | re->vrf_id, ifindex); | |
bf094f69 | 1452 | } |
7fcb24bb RW |
1453 | nexthop = route_entry_nexthop_ipv4_ifindex_add( |
1454 | re, &api_nh->gate.ipv4, NULL, ifindex, | |
1455 | api_nh->vrf_id); | |
1456 | ||
2b83602b | 1457 | /* Special handling for IPv4 routes sourced from EVPN: |
1458 | * the nexthop and associated MAC need to be installed. | |
7fcb24bb RW |
1459 | */ |
1460 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
7fcb24bb RW |
1461 | vtep_ip.ipa_type = IPADDR_V4; |
1462 | memcpy(&(vtep_ip.ipaddr_v4), | |
1463 | &(api_nh->gate.ipv4), | |
1464 | sizeof(struct in_addr)); | |
1465 | zebra_vxlan_evpn_vrf_route_add( | |
744c63be | 1466 | api_nh->vrf_id, &api_nh->rmac, |
1467 | &vtep_ip, &api.prefix); | |
bf094f69 | 1468 | } |
7fcb24bb RW |
1469 | break; |
1470 | case NEXTHOP_TYPE_IPV6: | |
1471 | nexthop = route_entry_nexthop_ipv6_add( | |
1472 | re, &api_nh->gate.ipv6, api_nh->vrf_id); | |
1473 | break; | |
1474 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1475 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
e1e71450 | 1476 | ifindex = api_nh->ifindex; |
7fcb24bb RW |
1477 | nexthop = route_entry_nexthop_ipv6_ifindex_add( |
1478 | re, &api_nh->gate.ipv6, ifindex, | |
1479 | api_nh->vrf_id); | |
1480 | ||
2b83602b | 1481 | /* Special handling for IPv6 routes sourced from EVPN: |
1482 | * the nexthop and associated MAC need to be installed. | |
7fcb24bb RW |
1483 | */ |
1484 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
7fcb24bb RW |
1485 | vtep_ip.ipa_type = IPADDR_V6; |
1486 | memcpy(&vtep_ip.ipaddr_v6, &(api_nh->gate.ipv6), | |
1487 | sizeof(struct in6_addr)); | |
1488 | zebra_vxlan_evpn_vrf_route_add( | |
744c63be | 1489 | api_nh->vrf_id, &api_nh->rmac, |
1490 | &vtep_ip, &api.prefix); | |
7fcb24bb RW |
1491 | } |
1492 | break; | |
1493 | case NEXTHOP_TYPE_BLACKHOLE: | |
1494 | nexthop = route_entry_nexthop_blackhole_add( | |
1495 | re, api_nh->bh_type); | |
1496 | break; | |
bf094f69 | 1497 | } |
bf094f69 | 1498 | |
7fcb24bb RW |
1499 | if (!nexthop) { |
1500 | flog_warn( | |
1501 | EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
1502 | "%s: Nexthops Specified: %d but we failed to properly create one", | |
1503 | __PRETTY_FUNCTION__, api.nexthop_num); | |
1504 | nexthops_free(re->ng.nexthop); | |
1505 | XFREE(MTYPE_RE, re); | |
1506 | return; | |
1507 | } | |
fe85601c DS |
1508 | if (api_nh->onlink) |
1509 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_ONLINK); | |
1510 | ||
7fcb24bb RW |
1511 | /* MPLS labels for BGP-LU or Segment Routing */ |
1512 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) | |
1513 | && api_nh->type != NEXTHOP_TYPE_IFINDEX | |
1514 | && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) { | |
1515 | enum lsp_types_t label_type; | |
1516 | ||
1517 | label_type = lsp_type_from_re_type(client->proto); | |
1518 | ||
1519 | if (IS_ZEBRA_DEBUG_RECV) { | |
1520 | zlog_debug( | |
1521 | "%s: adding %d labels of type %d (1st=%u)", | |
1522 | __func__, api_nh->label_num, label_type, | |
1523 | api_nh->labels[0]); | |
1524 | } | |
1525 | ||
1526 | nexthop_add_labels(nexthop, label_type, | |
1527 | api_nh->label_num, | |
1528 | &api_nh->labels[0]); | |
1529 | } | |
1530 | } | |
1531 | ||
bf094f69 QY |
1532 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) |
1533 | re->distance = api.distance; | |
1534 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1535 | re->metric = api.metric; | |
1536 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1537 | re->tag = api.tag; | |
1538 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_MTU)) | |
1539 | re->mtu = api.mtu; | |
1540 | ||
1541 | afi = family2afi(api.prefix.family); | |
1542 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1543 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1544 | "%s: Received SRC Prefix but afi is not v6", |
bf094f69 QY |
1545 | __PRETTY_FUNCTION__); |
1546 | nexthops_free(re->ng.nexthop); | |
1547 | XFREE(MTYPE_RE, re); | |
1548 | return; | |
1549 | } | |
1550 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1551 | src_p = &api.src_prefix; | |
1552 | ||
1553 | ret = rib_add_multipath(afi, api.safi, &api.prefix, src_p, re); | |
1554 | ||
1555 | /* Stats */ | |
1556 | switch (api.prefix.family) { | |
1557 | case AF_INET: | |
1558 | if (ret > 0) | |
1559 | client->v4_route_add_cnt++; | |
1560 | else if (ret < 0) | |
1561 | client->v4_route_upd8_cnt++; | |
1562 | break; | |
1563 | case AF_INET6: | |
1564 | if (ret > 0) | |
1565 | client->v6_route_add_cnt++; | |
1566 | else if (ret < 0) | |
1567 | client->v6_route_upd8_cnt++; | |
1568 | break; | |
1569 | } | |
1570 | } | |
1571 | ||
1572 | static void zread_route_del(ZAPI_HANDLER_ARGS) | |
1573 | { | |
1574 | struct stream *s; | |
1575 | struct zapi_route api; | |
1576 | afi_t afi; | |
1577 | struct prefix_ipv6 *src_p = NULL; | |
1578 | uint32_t table_id; | |
1579 | ||
1580 | s = msg; | |
1581 | if (zapi_route_decode(s, &api) < 0) | |
1582 | return; | |
1583 | ||
1584 | afi = family2afi(api.prefix.family); | |
1585 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1586 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1587 | "%s: Received a src prefix while afi is not v6", |
bf094f69 QY |
1588 | __PRETTY_FUNCTION__); |
1589 | return; | |
1590 | } | |
1591 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1592 | src_p = &api.src_prefix; | |
1593 | ||
1594 | if (api.vrf_id == VRF_DEFAULT && api.tableid != 0) | |
1595 | table_id = api.tableid; | |
1596 | else | |
1597 | table_id = zvrf->table_id; | |
1598 | ||
1599 | rib_delete(afi, api.safi, zvrf_id(zvrf), api.type, api.instance, | |
1600 | api.flags, &api.prefix, src_p, NULL, table_id, api.metric, | |
40ecd8e4 | 1601 | api.distance, false); |
bf094f69 QY |
1602 | |
1603 | /* Stats */ | |
1604 | switch (api.prefix.family) { | |
1605 | case AF_INET: | |
1606 | client->v4_route_del_cnt++; | |
1607 | break; | |
1608 | case AF_INET6: | |
1609 | client->v6_route_del_cnt++; | |
1610 | break; | |
1611 | } | |
1612 | } | |
1613 | ||
bf094f69 QY |
1614 | /* MRIB Nexthop lookup for IPv4. */ |
1615 | static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS) | |
1616 | { | |
1617 | struct in_addr addr; | |
1618 | struct route_entry *re; | |
1619 | ||
1620 | STREAM_GET(&addr.s_addr, msg, IPV4_MAX_BYTELEN); | |
1621 | re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
1622 | zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); | |
1623 | ||
1624 | stream_failure: | |
1625 | return; | |
1626 | } | |
1627 | ||
bf094f69 QY |
1628 | /* Register zebra server router-id information. Send current router-id */ |
1629 | static void zread_router_id_add(ZAPI_HANDLER_ARGS) | |
1630 | { | |
1631 | struct prefix p; | |
1632 | ||
1633 | /* Router-id information is needed. */ | |
1634 | vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); | |
1635 | ||
1636 | router_id_get(&p, zvrf_id(zvrf)); | |
1637 | ||
1638 | zsend_router_id_update(client, &p, zvrf_id(zvrf)); | |
1639 | } | |
1640 | ||
1641 | /* Unregister zebra server router-id information. */ | |
1642 | static void zread_router_id_delete(ZAPI_HANDLER_ARGS) | |
1643 | { | |
1644 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1645 | } | |
1646 | ||
1647 | static void zsend_capabilities(struct zserv *client, struct zebra_vrf *zvrf) | |
1648 | { | |
1649 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1650 | ||
1651 | zclient_create_header(s, ZEBRA_CAPABILITIES, zvrf->vrf->vrf_id); | |
bb6b7f79 | 1652 | stream_putl(s, vrf_get_backend()); |
bf094f69 QY |
1653 | stream_putc(s, mpls_enabled); |
1654 | stream_putl(s, multipath_num); | |
02c0866d | 1655 | stream_putc(s, zebra_mlag_get_role()); |
bf094f69 QY |
1656 | |
1657 | stream_putw_at(s, 0, stream_get_endp(s)); | |
21ccc0cf | 1658 | zserv_send_message(client, s); |
bf094f69 QY |
1659 | } |
1660 | ||
b120fe3b DS |
1661 | void zsend_capabilities_all_clients(void) |
1662 | { | |
1663 | struct listnode *node, *nnode; | |
1664 | struct zebra_vrf *zvrf; | |
1665 | struct zserv *client; | |
1666 | ||
1667 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1668 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { | |
1669 | zsend_capabilities(client, zvrf); | |
1670 | } | |
1671 | } | |
1672 | ||
bf094f69 QY |
1673 | /* Tie up route-type and client->sock */ |
1674 | static void zread_hello(ZAPI_HANDLER_ARGS) | |
1675 | { | |
1676 | /* type of protocol (lib/zebra.h) */ | |
1677 | uint8_t proto; | |
1678 | unsigned short instance; | |
1679 | uint8_t notify; | |
1680 | ||
1681 | STREAM_GETC(msg, proto); | |
1682 | STREAM_GETW(msg, instance); | |
1683 | STREAM_GETC(msg, notify); | |
1684 | if (notify) | |
1685 | client->notify_owner = true; | |
1686 | ||
1687 | /* accept only dynamic routing protocols */ | |
f23cbcda | 1688 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_CONNECT)) { |
bf094f69 QY |
1689 | zlog_notice( |
1690 | "client %d says hello and bids fair to announce only %s routes vrf=%u", | |
1691 | client->sock, zebra_route_string(proto), | |
1692 | zvrf->vrf->vrf_id); | |
1693 | if (instance) | |
1694 | zlog_notice("client protocol instance %d", instance); | |
1695 | ||
1696 | client->proto = proto; | |
1697 | client->instance = instance; | |
1698 | } | |
1699 | ||
1700 | zsend_capabilities(client, zvrf); | |
bb6b7f79 | 1701 | zebra_vrf_update_all(client); |
bf094f69 QY |
1702 | stream_failure: |
1703 | return; | |
1704 | } | |
1705 | ||
1706 | /* Unregister all information in a VRF. */ | |
1707 | static void zread_vrf_unregister(ZAPI_HANDLER_ARGS) | |
1708 | { | |
1709 | int i; | |
1710 | afi_t afi; | |
1711 | ||
49db7a7b | 1712 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
bf094f69 QY |
1713 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
1714 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
49db7a7b RW |
1715 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); |
1716 | } | |
bf094f69 QY |
1717 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); |
1718 | } | |
1719 | ||
1720 | static void zread_mpls_labels(ZAPI_HANDLER_ARGS) | |
1721 | { | |
1722 | struct stream *s; | |
1723 | enum lsp_types_t type; | |
1724 | struct prefix prefix; | |
1725 | enum nexthop_types_t gtype; | |
1726 | union g_addr gate; | |
1727 | ifindex_t ifindex; | |
1728 | mpls_label_t in_label, out_label; | |
1729 | uint8_t distance; | |
1730 | ||
1731 | /* Get input stream. */ | |
1732 | s = msg; | |
1733 | ||
1734 | /* Get data. */ | |
1735 | STREAM_GETC(s, type); | |
1736 | STREAM_GETL(s, prefix.family); | |
1737 | switch (prefix.family) { | |
1738 | case AF_INET: | |
1739 | STREAM_GET(&prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1740 | STREAM_GETC(s, prefix.prefixlen); | |
1741 | if (prefix.prefixlen > IPV4_MAX_BITLEN) { | |
9df414fe | 1742 | zlog_debug( |
bf094f69 QY |
1743 | "%s: Specified prefix length %d is greater than a v4 address can support", |
1744 | __PRETTY_FUNCTION__, prefix.prefixlen); | |
1745 | return; | |
1746 | } | |
1747 | STREAM_GET(&gate.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
1748 | break; | |
1749 | case AF_INET6: | |
1750 | STREAM_GET(&prefix.u.prefix6, s, 16); | |
1751 | STREAM_GETC(s, prefix.prefixlen); | |
1752 | if (prefix.prefixlen > IPV6_MAX_BITLEN) { | |
9df414fe | 1753 | zlog_debug( |
bf094f69 QY |
1754 | "%s: Specified prefix length %d is greater than a v6 address can support", |
1755 | __PRETTY_FUNCTION__, prefix.prefixlen); | |
1756 | return; | |
1757 | } | |
1758 | STREAM_GET(&gate.ipv6, s, 16); | |
1759 | break; | |
1760 | default: | |
9df414fe QY |
1761 | zlog_debug("%s: Specified AF %d is not supported for this call", |
1762 | __PRETTY_FUNCTION__, prefix.family); | |
bf094f69 QY |
1763 | return; |
1764 | } | |
1765 | STREAM_GETL(s, ifindex); | |
1766 | STREAM_GETC(s, distance); | |
1767 | STREAM_GETL(s, in_label); | |
1768 | STREAM_GETL(s, out_label); | |
1769 | ||
1770 | switch (prefix.family) { | |
1771 | case AF_INET: | |
1772 | if (ifindex) | |
1773 | gtype = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1774 | else | |
1775 | gtype = NEXTHOP_TYPE_IPV4; | |
1776 | break; | |
1777 | case AF_INET6: | |
1778 | if (ifindex) | |
1779 | gtype = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1780 | else | |
1781 | gtype = NEXTHOP_TYPE_IPV6; | |
1782 | break; | |
1783 | default: | |
1784 | return; | |
1785 | } | |
1786 | ||
1787 | if (!mpls_enabled) | |
1788 | return; | |
1789 | ||
1790 | if (hdr->command == ZEBRA_MPLS_LABELS_ADD) { | |
1791 | mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, | |
1792 | ifindex); | |
1793 | mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1794 | distance, out_label); | |
1795 | } else if (hdr->command == ZEBRA_MPLS_LABELS_DELETE) { | |
1796 | mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, ifindex); | |
1797 | mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1798 | distance, out_label); | |
1799 | } | |
1800 | stream_failure: | |
1801 | return; | |
1802 | } | |
1803 | ||
1804 | /* Send response to a table manager connect request to client */ | |
1805 | static void zread_table_manager_connect(struct zserv *client, | |
1806 | struct stream *msg, vrf_id_t vrf_id) | |
1807 | { | |
1808 | struct stream *s; | |
1809 | uint8_t proto; | |
1810 | uint16_t instance; | |
1811 | ||
1812 | s = msg; | |
1813 | ||
1814 | /* Get data. */ | |
1815 | STREAM_GETC(s, proto); | |
1816 | STREAM_GETW(s, instance); | |
1817 | ||
1818 | /* accept only dynamic routing protocols */ | |
1819 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 1820 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
1821 | "client %d has wrong protocol %s", client->sock, |
1822 | zebra_route_string(proto)); | |
bf094f69 QY |
1823 | zsend_table_manager_connect_response(client, vrf_id, 1); |
1824 | return; | |
1825 | } | |
1826 | zlog_notice("client %d with vrf %u instance %u connected as %s", | |
1827 | client->sock, vrf_id, instance, zebra_route_string(proto)); | |
1828 | client->proto = proto; | |
1829 | client->instance = instance; | |
1830 | ||
1831 | /* | |
1832 | * Release previous labels of same protocol and instance. | |
1833 | * This is done in case it restarted from an unexpected shutdown. | |
1834 | */ | |
453844ab | 1835 | release_daemon_table_chunks(client); |
bf094f69 QY |
1836 | |
1837 | zsend_table_manager_connect_response(client, vrf_id, 0); | |
1838 | ||
1839 | stream_failure: | |
1840 | return; | |
1841 | } | |
1842 | ||
1843 | static void zread_label_manager_connect(struct zserv *client, | |
1844 | struct stream *msg, vrf_id_t vrf_id) | |
1845 | { | |
1846 | struct stream *s; | |
1847 | /* type of protocol (lib/zebra.h) */ | |
1848 | uint8_t proto; | |
1849 | unsigned short instance; | |
1850 | ||
1851 | /* Get input stream. */ | |
1852 | s = msg; | |
1853 | ||
1854 | /* Get data. */ | |
1855 | STREAM_GETC(s, proto); | |
1856 | STREAM_GETW(s, instance); | |
1857 | ||
1858 | /* accept only dynamic routing protocols */ | |
1859 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 1860 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
1861 | "client %d has wrong protocol %s", client->sock, |
1862 | zebra_route_string(proto)); | |
f533be73 | 1863 | if (client->is_synchronous) |
1864 | zsend_label_manager_connect_response(client, vrf_id, 1); | |
bf094f69 QY |
1865 | return; |
1866 | } | |
1867 | zlog_notice("client %d with vrf %u instance %u connected as %s", | |
1868 | client->sock, vrf_id, instance, zebra_route_string(proto)); | |
1869 | client->proto = proto; | |
1870 | client->instance = instance; | |
1871 | ||
1872 | /* | |
453844ab QY |
1873 | * Release previous labels of same protocol and instance. |
1874 | * This is done in case it restarted from an unexpected shutdown. | |
1875 | */ | |
1876 | release_daemon_label_chunks(client); | |
bf094f69 QY |
1877 | |
1878 | zlog_debug( | |
1879 | " Label Manager client connected: sock %d, proto %s, vrf %u instance %u", | |
1880 | client->sock, zebra_route_string(proto), vrf_id, instance); | |
1881 | /* send response back */ | |
f533be73 | 1882 | if (client->is_synchronous) |
1883 | zsend_label_manager_connect_response(client, vrf_id, 0); | |
bf094f69 QY |
1884 | |
1885 | stream_failure: | |
1886 | return; | |
1887 | } | |
1888 | ||
1889 | static void zread_get_label_chunk(struct zserv *client, struct stream *msg, | |
1890 | vrf_id_t vrf_id) | |
1891 | { | |
1892 | struct stream *s; | |
1893 | uint8_t keep; | |
1894 | uint32_t size; | |
1895 | struct label_manager_chunk *lmc; | |
5dffb0e9 FR |
1896 | uint8_t proto; |
1897 | unsigned short instance; | |
bf094f69 QY |
1898 | |
1899 | /* Get input stream. */ | |
1900 | s = msg; | |
1901 | ||
1902 | /* Get data. */ | |
5dffb0e9 FR |
1903 | STREAM_GETC(s, proto); |
1904 | STREAM_GETW(s, instance); | |
bf094f69 QY |
1905 | STREAM_GETC(s, keep); |
1906 | STREAM_GETL(s, size); | |
1907 | ||
f533be73 | 1908 | lmc = assign_label_chunk(proto, instance, keep, size); |
bf094f69 | 1909 | if (!lmc) |
af4c2728 | 1910 | flog_err( |
e914ccbe | 1911 | EC_ZEBRA_LM_CANNOT_ASSIGN_CHUNK, |
0313523d | 1912 | "Unable to assign Label Chunk of size %u to %s instance %u", |
f533be73 | 1913 | size, zebra_route_string(proto), instance); |
bf094f69 | 1914 | else |
0313523d FR |
1915 | zlog_debug("Assigned Label Chunk %u - %u to %s instance %u", |
1916 | lmc->start, lmc->end, | |
f533be73 | 1917 | zebra_route_string(proto), instance); |
bf094f69 QY |
1918 | /* send response back */ |
1919 | zsend_assign_label_chunk_response(client, vrf_id, lmc); | |
1920 | ||
1921 | stream_failure: | |
1922 | return; | |
1923 | } | |
1924 | ||
1925 | static void zread_release_label_chunk(struct zserv *client, struct stream *msg) | |
1926 | { | |
1927 | struct stream *s; | |
1928 | uint32_t start, end; | |
5dffb0e9 FR |
1929 | uint8_t proto; |
1930 | unsigned short instance; | |
bf094f69 QY |
1931 | |
1932 | /* Get input stream. */ | |
1933 | s = msg; | |
1934 | ||
1935 | /* Get data. */ | |
5dffb0e9 FR |
1936 | STREAM_GETC(s, proto); |
1937 | STREAM_GETW(s, instance); | |
bf094f69 QY |
1938 | STREAM_GETL(s, start); |
1939 | STREAM_GETL(s, end); | |
1940 | ||
f533be73 | 1941 | release_label_chunk(proto, instance, start, end); |
bf094f69 QY |
1942 | |
1943 | stream_failure: | |
1944 | return; | |
1945 | } | |
1946 | static void zread_label_manager_request(ZAPI_HANDLER_ARGS) | |
1947 | { | |
1948 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
f533be73 | 1949 | client->is_synchronous = hdr->command == |
1950 | ZEBRA_LABEL_MANAGER_CONNECT; | |
bf094f69 QY |
1951 | |
1952 | /* external label manager */ | |
1953 | if (lm_is_external) | |
0313523d | 1954 | zread_relay_label_manager_request(hdr->command, client, msg, |
bf094f69 QY |
1955 | zvrf_id(zvrf)); |
1956 | /* this is a label manager */ | |
1957 | else { | |
f533be73 | 1958 | if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT || |
1959 | hdr->command == ZEBRA_LABEL_MANAGER_CONNECT_ASYNC) | |
bf094f69 QY |
1960 | zread_label_manager_connect(client, msg, zvrf_id(zvrf)); |
1961 | else { | |
bf094f69 QY |
1962 | if (hdr->command == ZEBRA_GET_LABEL_CHUNK) |
1963 | zread_get_label_chunk(client, msg, | |
1964 | zvrf_id(zvrf)); | |
1965 | else if (hdr->command == ZEBRA_RELEASE_LABEL_CHUNK) | |
1966 | zread_release_label_chunk(client, msg); | |
1967 | } | |
1968 | } | |
1969 | } | |
1970 | ||
1971 | static void zread_get_table_chunk(struct zserv *client, struct stream *msg, | |
1972 | vrf_id_t vrf_id) | |
1973 | { | |
1974 | struct stream *s; | |
1975 | uint32_t size; | |
1976 | struct table_manager_chunk *tmc; | |
1977 | ||
1978 | /* Get input stream. */ | |
1979 | s = msg; | |
1980 | ||
1981 | /* Get data. */ | |
1982 | STREAM_GETL(s, size); | |
1983 | ||
1984 | tmc = assign_table_chunk(client->proto, client->instance, size); | |
1985 | if (!tmc) | |
e914ccbe | 1986 | flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK, |
1c50c1c0 QY |
1987 | "%s: Unable to assign Table Chunk of size %u", |
1988 | __func__, size); | |
bf094f69 QY |
1989 | else |
1990 | zlog_debug("Assigned Table Chunk %u - %u", tmc->start, | |
1991 | tmc->end); | |
1992 | /* send response back */ | |
1993 | zsend_assign_table_chunk_response(client, vrf_id, tmc); | |
1994 | ||
1995 | stream_failure: | |
1996 | return; | |
1997 | } | |
1998 | ||
1999 | static void zread_release_table_chunk(struct zserv *client, struct stream *msg) | |
2000 | { | |
2001 | struct stream *s; | |
2002 | uint32_t start, end; | |
2003 | ||
2004 | /* Get input stream. */ | |
2005 | s = msg; | |
2006 | ||
2007 | /* Get data. */ | |
2008 | STREAM_GETL(s, start); | |
2009 | STREAM_GETL(s, end); | |
2010 | ||
2011 | release_table_chunk(client->proto, client->instance, start, end); | |
2012 | ||
2013 | stream_failure: | |
2014 | return; | |
2015 | } | |
2016 | ||
2017 | static void zread_table_manager_request(ZAPI_HANDLER_ARGS) | |
2018 | { | |
2019 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
2020 | if (hdr->command == ZEBRA_TABLE_MANAGER_CONNECT) | |
2021 | zread_table_manager_connect(client, msg, zvrf_id(zvrf)); | |
2022 | else { | |
2023 | /* Sanity: don't allow 'unidentified' requests */ | |
2024 | if (!client->proto) { | |
af4c2728 | 2025 | flog_err( |
e914ccbe | 2026 | EC_ZEBRA_TM_ALIENS, |
bf094f69 QY |
2027 | "Got table request from an unidentified client"); |
2028 | return; | |
2029 | } | |
2030 | if (hdr->command == ZEBRA_GET_TABLE_CHUNK) | |
2031 | zread_get_table_chunk(client, msg, zvrf_id(zvrf)); | |
2032 | else if (hdr->command == ZEBRA_RELEASE_TABLE_CHUNK) | |
2033 | zread_release_table_chunk(client, msg); | |
2034 | } | |
2035 | } | |
2036 | ||
2037 | static void zread_pseudowire(ZAPI_HANDLER_ARGS) | |
2038 | { | |
2039 | struct stream *s; | |
2040 | char ifname[IF_NAMESIZE]; | |
2041 | ifindex_t ifindex; | |
2042 | int type; | |
2043 | int af; | |
2044 | union g_addr nexthop; | |
2045 | uint32_t local_label; | |
2046 | uint32_t remote_label; | |
2047 | uint8_t flags; | |
2048 | union pw_protocol_fields data; | |
2049 | uint8_t protocol; | |
2050 | struct zebra_pw *pw; | |
2051 | ||
2052 | /* Get input stream. */ | |
2053 | s = msg; | |
2054 | ||
2055 | /* Get data. */ | |
2056 | STREAM_GET(ifname, s, IF_NAMESIZE); | |
2057 | STREAM_GETL(s, ifindex); | |
2058 | STREAM_GETL(s, type); | |
2059 | STREAM_GETL(s, af); | |
2060 | switch (af) { | |
2061 | case AF_INET: | |
2062 | STREAM_GET(&nexthop.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
2063 | break; | |
2064 | case AF_INET6: | |
2065 | STREAM_GET(&nexthop.ipv6, s, 16); | |
2066 | break; | |
2067 | default: | |
2068 | return; | |
2069 | } | |
2070 | STREAM_GETL(s, local_label); | |
2071 | STREAM_GETL(s, remote_label); | |
2072 | STREAM_GETC(s, flags); | |
2073 | STREAM_GET(&data, s, sizeof(data)); | |
2074 | protocol = client->proto; | |
2075 | ||
2076 | pw = zebra_pw_find(zvrf, ifname); | |
2077 | switch (hdr->command) { | |
2078 | case ZEBRA_PW_ADD: | |
2079 | if (pw) { | |
e914ccbe | 2080 | flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS, |
9df414fe | 2081 | "%s: pseudowire %s already exists [%s]", |
bf094f69 QY |
2082 | __func__, ifname, |
2083 | zserv_command_string(hdr->command)); | |
2084 | return; | |
2085 | } | |
2086 | ||
2087 | zebra_pw_add(zvrf, ifname, protocol, client); | |
2088 | break; | |
2089 | case ZEBRA_PW_DELETE: | |
2090 | if (!pw) { | |
e914ccbe | 2091 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2092 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2093 | ifname, zserv_command_string(hdr->command)); |
2094 | return; | |
2095 | } | |
2096 | ||
2097 | zebra_pw_del(zvrf, pw); | |
2098 | break; | |
2099 | case ZEBRA_PW_SET: | |
2100 | case ZEBRA_PW_UNSET: | |
2101 | if (!pw) { | |
e914ccbe | 2102 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2103 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2104 | ifname, zserv_command_string(hdr->command)); |
2105 | return; | |
2106 | } | |
2107 | ||
2108 | switch (hdr->command) { | |
2109 | case ZEBRA_PW_SET: | |
2110 | pw->enabled = 1; | |
2111 | break; | |
2112 | case ZEBRA_PW_UNSET: | |
2113 | pw->enabled = 0; | |
2114 | break; | |
2115 | } | |
2116 | ||
2117 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
2118 | remote_label, flags, &data); | |
2119 | break; | |
2120 | } | |
2121 | ||
2122 | stream_failure: | |
2123 | return; | |
2124 | } | |
2125 | ||
2126 | static void zread_interface_set_master(ZAPI_HANDLER_ARGS) | |
2127 | { | |
2128 | struct interface *master; | |
2129 | struct interface *slave; | |
2130 | struct stream *s = msg; | |
2131 | int ifindex; | |
2132 | vrf_id_t vrf_id; | |
2133 | ||
2134 | STREAM_GETL(s, vrf_id); | |
2135 | STREAM_GETL(s, ifindex); | |
2136 | master = if_lookup_by_index(ifindex, vrf_id); | |
2137 | ||
2138 | STREAM_GETL(s, vrf_id); | |
2139 | STREAM_GETL(s, ifindex); | |
2140 | slave = if_lookup_by_index(ifindex, vrf_id); | |
2141 | ||
2142 | if (!master || !slave) | |
2143 | return; | |
2144 | ||
2145 | kernel_interface_set_master(master, slave); | |
2146 | ||
2147 | stream_failure: | |
2148 | return; | |
2149 | } | |
2150 | ||
2151 | ||
2152 | static void zread_vrf_label(ZAPI_HANDLER_ARGS) | |
2153 | { | |
2154 | struct interface *ifp; | |
2155 | mpls_label_t nlabel; | |
2156 | afi_t afi; | |
2157 | struct stream *s; | |
2158 | struct zebra_vrf *def_zvrf; | |
2159 | enum lsp_types_t ltype; | |
2160 | ||
2161 | s = msg; | |
2162 | STREAM_GETL(s, nlabel); | |
2163 | STREAM_GETC(s, afi); | |
2164 | if (nlabel == zvrf->label[afi]) { | |
2165 | /* | |
2166 | * Nothing to do here move along | |
2167 | */ | |
2168 | return; | |
2169 | } | |
2170 | ||
2171 | STREAM_GETC(s, ltype); | |
2172 | ||
2173 | if (zvrf->vrf->vrf_id != VRF_DEFAULT) | |
2174 | ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id); | |
2175 | else | |
2176 | ifp = if_lookup_by_name("lo", VRF_DEFAULT); | |
2177 | ||
2178 | if (!ifp) { | |
2179 | zlog_debug("Unable to find specified Interface for %s", | |
2180 | zvrf->vrf->name); | |
2181 | return; | |
2182 | } | |
2183 | ||
2184 | def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT); | |
2185 | ||
2186 | if (zvrf->label[afi] != MPLS_LABEL_NONE) { | |
2187 | afi_t scrubber; | |
2188 | bool really_remove; | |
2189 | ||
2190 | really_remove = true; | |
2191 | for (scrubber = AFI_IP; scrubber < AFI_MAX; scrubber++) { | |
2192 | if (scrubber == afi) | |
2193 | continue; | |
2194 | ||
2195 | if (zvrf->label[scrubber] == MPLS_LABEL_NONE) | |
2196 | continue; | |
2197 | ||
2198 | if (zvrf->label[afi] == zvrf->label[scrubber]) { | |
2199 | really_remove = false; | |
2200 | break; | |
2201 | } | |
2202 | } | |
2203 | ||
2204 | if (really_remove) | |
2205 | mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label[afi], | |
2206 | NEXTHOP_TYPE_IFINDEX, NULL, | |
2207 | ifp->ifindex); | |
2208 | } | |
2209 | ||
2210 | if (nlabel != MPLS_LABEL_NONE) | |
2211 | mpls_lsp_install(def_zvrf, ltype, nlabel, | |
2212 | MPLS_LABEL_IMPLICIT_NULL, NEXTHOP_TYPE_IFINDEX, | |
2213 | NULL, ifp->ifindex); | |
2214 | ||
2215 | zvrf->label[afi] = nlabel; | |
2216 | stream_failure: | |
2217 | return; | |
2218 | } | |
2219 | ||
2220 | static inline void zread_rule(ZAPI_HANDLER_ARGS) | |
2221 | { | |
2222 | struct zebra_pbr_rule zpr; | |
2223 | struct stream *s; | |
2224 | uint32_t total, i; | |
2225 | ifindex_t ifindex; | |
2226 | ||
2227 | s = msg; | |
2228 | STREAM_GETL(s, total); | |
2229 | ||
2230 | for (i = 0; i < total; i++) { | |
2231 | memset(&zpr, 0, sizeof(zpr)); | |
2232 | ||
2233 | zpr.sock = client->sock; | |
2234 | zpr.rule.vrf_id = hdr->vrf_id; | |
2235 | STREAM_GETL(s, zpr.rule.seq); | |
2236 | STREAM_GETL(s, zpr.rule.priority); | |
2237 | STREAM_GETL(s, zpr.rule.unique); | |
2238 | STREAM_GETC(s, zpr.rule.filter.src_ip.family); | |
2239 | STREAM_GETC(s, zpr.rule.filter.src_ip.prefixlen); | |
2240 | STREAM_GET(&zpr.rule.filter.src_ip.u.prefix, s, | |
2241 | prefix_blen(&zpr.rule.filter.src_ip)); | |
2242 | STREAM_GETW(s, zpr.rule.filter.src_port); | |
2243 | STREAM_GETC(s, zpr.rule.filter.dst_ip.family); | |
2244 | STREAM_GETC(s, zpr.rule.filter.dst_ip.prefixlen); | |
2245 | STREAM_GET(&zpr.rule.filter.dst_ip.u.prefix, s, | |
2246 | prefix_blen(&zpr.rule.filter.dst_ip)); | |
2247 | STREAM_GETW(s, zpr.rule.filter.dst_port); | |
2248 | STREAM_GETL(s, zpr.rule.filter.fwmark); | |
2249 | STREAM_GETL(s, zpr.rule.action.table); | |
2250 | STREAM_GETL(s, ifindex); | |
2251 | ||
2252 | if (ifindex) { | |
06432d4e PG |
2253 | zpr.ifp = if_lookup_by_index_per_ns( |
2254 | zvrf->zns, | |
2255 | ifindex); | |
bf094f69 QY |
2256 | if (!zpr.ifp) { |
2257 | zlog_debug("Failed to lookup ifindex: %u", | |
2258 | ifindex); | |
2259 | return; | |
2260 | } | |
2261 | } | |
2262 | ||
2263 | if (!is_default_prefix(&zpr.rule.filter.src_ip)) | |
2264 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_IP; | |
2265 | ||
2266 | if (!is_default_prefix(&zpr.rule.filter.dst_ip)) | |
2267 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_IP; | |
2268 | ||
2269 | if (zpr.rule.filter.src_port) | |
2270 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_PORT; | |
2271 | ||
2272 | if (zpr.rule.filter.dst_port) | |
2273 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_PORT; | |
2274 | ||
2275 | if (zpr.rule.filter.fwmark) | |
2276 | zpr.rule.filter.filter_bm |= PBR_FILTER_FWMARK; | |
2277 | ||
7f0ea8a4 | 2278 | zpr.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 | 2279 | if (hdr->command == ZEBRA_RULE_ADD) |
7f0ea8a4 | 2280 | zebra_pbr_add_rule(&zpr); |
bf094f69 | 2281 | else |
7f0ea8a4 | 2282 | zebra_pbr_del_rule(&zpr); |
bf094f69 QY |
2283 | } |
2284 | ||
2285 | stream_failure: | |
2286 | return; | |
2287 | } | |
2288 | ||
2289 | static inline void zread_ipset(ZAPI_HANDLER_ARGS) | |
2290 | { | |
2291 | struct zebra_pbr_ipset zpi; | |
2292 | struct stream *s; | |
2293 | uint32_t total, i; | |
2294 | ||
2295 | s = msg; | |
2296 | STREAM_GETL(s, total); | |
2297 | ||
2298 | for (i = 0; i < total; i++) { | |
2299 | memset(&zpi, 0, sizeof(zpi)); | |
2300 | ||
2301 | zpi.sock = client->sock; | |
be2028d1 | 2302 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2303 | STREAM_GETL(s, zpi.unique); |
2304 | STREAM_GETL(s, zpi.type); | |
2305 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2306 | ||
2307 | if (hdr->command == ZEBRA_IPSET_CREATE) | |
62f20a52 | 2308 | zebra_pbr_create_ipset(&zpi); |
bf094f69 | 2309 | else |
62f20a52 | 2310 | zebra_pbr_destroy_ipset(&zpi); |
bf094f69 QY |
2311 | } |
2312 | ||
2313 | stream_failure: | |
2314 | return; | |
2315 | } | |
2316 | ||
2317 | static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS) | |
2318 | { | |
2319 | struct zebra_pbr_ipset_entry zpi; | |
2320 | struct zebra_pbr_ipset ipset; | |
2321 | struct stream *s; | |
2322 | uint32_t total, i; | |
2323 | ||
2324 | s = msg; | |
2325 | STREAM_GETL(s, total); | |
2326 | ||
2327 | for (i = 0; i < total; i++) { | |
2328 | memset(&zpi, 0, sizeof(zpi)); | |
2329 | memset(&ipset, 0, sizeof(ipset)); | |
2330 | ||
2331 | zpi.sock = client->sock; | |
2332 | STREAM_GETL(s, zpi.unique); | |
2333 | STREAM_GET(&ipset.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2334 | STREAM_GETC(s, zpi.src.family); | |
2335 | STREAM_GETC(s, zpi.src.prefixlen); | |
2336 | STREAM_GET(&zpi.src.u.prefix, s, prefix_blen(&zpi.src)); | |
2337 | STREAM_GETC(s, zpi.dst.family); | |
2338 | STREAM_GETC(s, zpi.dst.prefixlen); | |
2339 | STREAM_GET(&zpi.dst.u.prefix, s, prefix_blen(&zpi.dst)); | |
2340 | ||
25d760c5 PG |
2341 | STREAM_GETW(s, zpi.src_port_min); |
2342 | STREAM_GETW(s, zpi.src_port_max); | |
2343 | STREAM_GETW(s, zpi.dst_port_min); | |
2344 | STREAM_GETW(s, zpi.dst_port_max); | |
2345 | STREAM_GETC(s, zpi.proto); | |
bf094f69 QY |
2346 | if (!is_default_prefix(&zpi.src)) |
2347 | zpi.filter_bm |= PBR_FILTER_SRC_IP; | |
2348 | ||
2349 | if (!is_default_prefix(&zpi.dst)) | |
2350 | zpi.filter_bm |= PBR_FILTER_DST_IP; | |
be729dd7 | 2351 | if (zpi.dst_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 | 2352 | zpi.filter_bm |= PBR_FILTER_DST_PORT; |
be729dd7 | 2353 | if (zpi.src_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 PG |
2354 | zpi.filter_bm |= PBR_FILTER_SRC_PORT; |
2355 | if (zpi.dst_port_max != 0) | |
2356 | zpi.filter_bm |= PBR_FILTER_DST_PORT_RANGE; | |
2357 | if (zpi.src_port_max != 0) | |
2358 | zpi.filter_bm |= PBR_FILTER_SRC_PORT_RANGE; | |
2359 | if (zpi.proto != 0) | |
2360 | zpi.filter_bm |= PBR_FILTER_PROTO; | |
bf094f69 QY |
2361 | |
2362 | /* calculate backpointer */ | |
62f20a52 DS |
2363 | zpi.backpointer = |
2364 | zebra_pbr_lookup_ipset_pername(ipset.ipset_name); | |
bf094f69 | 2365 | if (hdr->command == ZEBRA_IPSET_ENTRY_ADD) |
62f20a52 | 2366 | zebra_pbr_add_ipset_entry(&zpi); |
bf094f69 | 2367 | else |
62f20a52 | 2368 | zebra_pbr_del_ipset_entry(&zpi); |
bf094f69 QY |
2369 | } |
2370 | ||
2371 | stream_failure: | |
2372 | return; | |
2373 | } | |
2374 | ||
2375 | static inline void zread_iptable(ZAPI_HANDLER_ARGS) | |
2376 | { | |
2377 | struct zebra_pbr_iptable zpi; | |
2378 | struct stream *s; | |
2379 | ||
2380 | s = msg; | |
2381 | ||
2382 | memset(&zpi, 0, sizeof(zpi)); | |
2383 | ||
f80ec7e3 | 2384 | zpi.interface_name_list = list_new(); |
bf094f69 | 2385 | zpi.sock = client->sock; |
be2028d1 | 2386 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2387 | STREAM_GETL(s, zpi.unique); |
2388 | STREAM_GETL(s, zpi.type); | |
2389 | STREAM_GETL(s, zpi.filter_bm); | |
2390 | STREAM_GETL(s, zpi.action); | |
2391 | STREAM_GETL(s, zpi.fwmark); | |
2392 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
e7f7dad4 PG |
2393 | STREAM_GETW(s, zpi.pkt_len_min); |
2394 | STREAM_GETW(s, zpi.pkt_len_max); | |
dc993e76 PG |
2395 | STREAM_GETW(s, zpi.tcp_flags); |
2396 | STREAM_GETW(s, zpi.tcp_mask_flags); | |
4977bd6c | 2397 | STREAM_GETC(s, zpi.dscp_value); |
5ac5b7cc | 2398 | STREAM_GETC(s, zpi.fragment); |
f80ec7e3 PG |
2399 | STREAM_GETL(s, zpi.nb_interface); |
2400 | zebra_pbr_iptable_update_interfacelist(s, &zpi); | |
bf094f69 QY |
2401 | |
2402 | if (hdr->command == ZEBRA_IPTABLE_ADD) | |
62f20a52 | 2403 | zebra_pbr_add_iptable(&zpi); |
bf094f69 | 2404 | else |
62f20a52 | 2405 | zebra_pbr_del_iptable(&zpi); |
bf094f69 QY |
2406 | stream_failure: |
2407 | return; | |
2408 | } | |
2409 | ||
2410 | void (*zserv_handlers[])(ZAPI_HANDLER_ARGS) = { | |
2411 | [ZEBRA_ROUTER_ID_ADD] = zread_router_id_add, | |
2412 | [ZEBRA_ROUTER_ID_DELETE] = zread_router_id_delete, | |
2413 | [ZEBRA_INTERFACE_ADD] = zread_interface_add, | |
2414 | [ZEBRA_INTERFACE_DELETE] = zread_interface_delete, | |
2415 | [ZEBRA_ROUTE_ADD] = zread_route_add, | |
2416 | [ZEBRA_ROUTE_DELETE] = zread_route_del, | |
bf094f69 QY |
2417 | [ZEBRA_REDISTRIBUTE_ADD] = zebra_redistribute_add, |
2418 | [ZEBRA_REDISTRIBUTE_DELETE] = zebra_redistribute_delete, | |
2419 | [ZEBRA_REDISTRIBUTE_DEFAULT_ADD] = zebra_redistribute_default_add, | |
2420 | [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE] = zebra_redistribute_default_delete, | |
2421 | [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB] = zread_ipv4_nexthop_lookup_mrib, | |
2422 | [ZEBRA_HELLO] = zread_hello, | |
2423 | [ZEBRA_NEXTHOP_REGISTER] = zread_rnh_register, | |
2424 | [ZEBRA_NEXTHOP_UNREGISTER] = zread_rnh_unregister, | |
2425 | [ZEBRA_IMPORT_ROUTE_REGISTER] = zread_rnh_register, | |
2426 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = zread_rnh_unregister, | |
2427 | [ZEBRA_BFD_DEST_UPDATE] = zebra_ptm_bfd_dst_register, | |
2428 | [ZEBRA_BFD_DEST_REGISTER] = zebra_ptm_bfd_dst_register, | |
2429 | [ZEBRA_BFD_DEST_DEREGISTER] = zebra_ptm_bfd_dst_deregister, | |
d3af6147 RZ |
2430 | #if HAVE_BFDD > 0 |
2431 | [ZEBRA_BFD_DEST_REPLAY] = zebra_ptm_bfd_dst_replay, | |
2432 | #endif /* HAVE_BFDD */ | |
bf094f69 QY |
2433 | [ZEBRA_VRF_UNREGISTER] = zread_vrf_unregister, |
2434 | [ZEBRA_VRF_LABEL] = zread_vrf_label, | |
2435 | [ZEBRA_BFD_CLIENT_REGISTER] = zebra_ptm_bfd_client_register, | |
2436 | #if defined(HAVE_RTADV) | |
2437 | [ZEBRA_INTERFACE_ENABLE_RADV] = zebra_interface_radv_enable, | |
2438 | [ZEBRA_INTERFACE_DISABLE_RADV] = zebra_interface_radv_disable, | |
2439 | #else | |
2440 | [ZEBRA_INTERFACE_ENABLE_RADV] = NULL, | |
2441 | [ZEBRA_INTERFACE_DISABLE_RADV] = NULL, | |
2442 | #endif | |
2443 | [ZEBRA_MPLS_LABELS_ADD] = zread_mpls_labels, | |
2444 | [ZEBRA_MPLS_LABELS_DELETE] = zread_mpls_labels, | |
2445 | [ZEBRA_IPMR_ROUTE_STATS] = zebra_ipmr_route_stats, | |
2446 | [ZEBRA_LABEL_MANAGER_CONNECT] = zread_label_manager_request, | |
f533be73 | 2447 | [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC] = zread_label_manager_request, |
bf094f69 QY |
2448 | [ZEBRA_GET_LABEL_CHUNK] = zread_label_manager_request, |
2449 | [ZEBRA_RELEASE_LABEL_CHUNK] = zread_label_manager_request, | |
2450 | [ZEBRA_FEC_REGISTER] = zread_fec_register, | |
2451 | [ZEBRA_FEC_UNREGISTER] = zread_fec_unregister, | |
2452 | [ZEBRA_ADVERTISE_DEFAULT_GW] = zebra_vxlan_advertise_gw_macip, | |
278e26de | 2453 | [ZEBRA_ADVERTISE_SVI_MACIP] = zebra_vxlan_advertise_svi_macip, |
bf094f69 QY |
2454 | [ZEBRA_ADVERTISE_SUBNET] = zebra_vxlan_advertise_subnet, |
2455 | [ZEBRA_ADVERTISE_ALL_VNI] = zebra_vxlan_advertise_all_vni, | |
2456 | [ZEBRA_REMOTE_VTEP_ADD] = zebra_vxlan_remote_vtep_add, | |
2457 | [ZEBRA_REMOTE_VTEP_DEL] = zebra_vxlan_remote_vtep_del, | |
2458 | [ZEBRA_REMOTE_MACIP_ADD] = zebra_vxlan_remote_macip_add, | |
2459 | [ZEBRA_REMOTE_MACIP_DEL] = zebra_vxlan_remote_macip_del, | |
3950b52c | 2460 | [ZEBRA_DUPLICATE_ADDR_DETECTION] = zebra_vxlan_dup_addr_detection, |
bf094f69 QY |
2461 | [ZEBRA_INTERFACE_SET_MASTER] = zread_interface_set_master, |
2462 | [ZEBRA_PW_ADD] = zread_pseudowire, | |
2463 | [ZEBRA_PW_DELETE] = zread_pseudowire, | |
2464 | [ZEBRA_PW_SET] = zread_pseudowire, | |
2465 | [ZEBRA_PW_UNSET] = zread_pseudowire, | |
2466 | [ZEBRA_RULE_ADD] = zread_rule, | |
2467 | [ZEBRA_RULE_DELETE] = zread_rule, | |
2468 | [ZEBRA_TABLE_MANAGER_CONNECT] = zread_table_manager_request, | |
2469 | [ZEBRA_GET_TABLE_CHUNK] = zread_table_manager_request, | |
2470 | [ZEBRA_RELEASE_TABLE_CHUNK] = zread_table_manager_request, | |
2471 | [ZEBRA_IPSET_CREATE] = zread_ipset, | |
2472 | [ZEBRA_IPSET_DESTROY] = zread_ipset, | |
2473 | [ZEBRA_IPSET_ENTRY_ADD] = zread_ipset_entry, | |
2474 | [ZEBRA_IPSET_ENTRY_DELETE] = zread_ipset_entry, | |
2475 | [ZEBRA_IPTABLE_ADD] = zread_iptable, | |
2476 | [ZEBRA_IPTABLE_DELETE] = zread_iptable, | |
fbac9605 | 2477 | [ZEBRA_VXLAN_FLOOD_CONTROL] = zebra_vxlan_flood_control, |
bf094f69 QY |
2478 | }; |
2479 | ||
727c9b99 QY |
2480 | #if defined(HANDLE_ZAPI_FUZZING) |
2481 | extern struct zebra_privs_t zserv_privs; | |
2482 | ||
2483 | static void zserv_write_incoming(struct stream *orig, uint16_t command) | |
2484 | { | |
2485 | char fname[MAXPATHLEN]; | |
2486 | struct stream *copy; | |
2487 | int fd = -1; | |
2488 | ||
2489 | copy = stream_dup(orig); | |
2490 | stream_set_getp(copy, 0); | |
2491 | ||
727c9b99 | 2492 | snprintf(fname, MAXPATHLEN, "%s/%u", DAEMON_VTY_DIR, command); |
6bb30c2c DL |
2493 | |
2494 | frr_elevate_privs(&zserv_privs) { | |
2495 | fd = open(fname, O_CREAT | O_WRONLY | O_EXCL, 0644); | |
2496 | } | |
727c9b99 QY |
2497 | stream_flush(copy, fd); |
2498 | close(fd); | |
727c9b99 QY |
2499 | stream_free(copy); |
2500 | } | |
2501 | #endif | |
2502 | ||
904e0d88 | 2503 | void zserv_handle_commands(struct zserv *client, struct stream *msg) |
bf094f69 | 2504 | { |
904e0d88 QY |
2505 | struct zmsghdr hdr; |
2506 | struct zebra_vrf *zvrf; | |
2507 | ||
2508 | zapi_parse_header(msg, &hdr); | |
bf094f69 | 2509 | |
727c9b99 QY |
2510 | #if defined(HANDLE_ZAPI_FUZZING) |
2511 | zserv_write_incoming(msg, hdr.command); | |
2512 | #endif | |
2513 | ||
904e0d88 QY |
2514 | hdr.length -= ZEBRA_HEADER_SIZE; |
2515 | ||
2516 | /* lookup vrf */ | |
2517 | zvrf = zebra_vrf_lookup_by_id(hdr.vrf_id); | |
2518 | if (!zvrf) { | |
2519 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
9df414fe QY |
2520 | zlog_debug("ZAPI message specifies unknown VRF: %d", |
2521 | hdr.vrf_id); | |
904e0d88 QY |
2522 | return; |
2523 | } | |
2524 | ||
aa360de7 | 2525 | if (hdr.command >= array_size(zserv_handlers) |
904e0d88 QY |
2526 | || zserv_handlers[hdr.command] == NULL) |
2527 | zlog_info("Zebra received unknown command %d", hdr.command); | |
2528 | else | |
2529 | zserv_handlers[hdr.command](client, &hdr, msg, zvrf); | |
bf094f69 | 2530 | } |