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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; |
bf094f69 QY |
1039 | |
1040 | if (IS_ZEBRA_DEBUG_NHT) | |
1041 | zlog_debug( | |
1042 | "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u\n", | |
1043 | zebra_route_string(client->proto), hdr->length, | |
1044 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route", | |
1045 | zvrf->vrf->vrf_id); | |
1046 | ||
1047 | s = msg; | |
1048 | ||
1049 | client->nh_reg_time = monotime(NULL); | |
1050 | ||
1051 | while (l < hdr->length) { | |
1052 | STREAM_GETC(s, flags); | |
1053 | STREAM_GETW(s, p.family); | |
1054 | STREAM_GETC(s, p.prefixlen); | |
1055 | l += 4; | |
1056 | if (p.family == AF_INET) { | |
ab5990d8 | 1057 | client->v4_nh_watch_add_cnt++; |
bf094f69 | 1058 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1059 | zlog_debug( |
bf094f69 QY |
1060 | "%s: Specified prefix hdr->length %d is too large for a v4 address", |
1061 | __PRETTY_FUNCTION__, p.prefixlen); | |
1062 | return; | |
1063 | } | |
1064 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1065 | l += IPV4_MAX_BYTELEN; | |
1066 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1067 | client->v6_nh_watch_add_cnt++; |
bf094f69 | 1068 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1069 | zlog_debug( |
bf094f69 QY |
1070 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
1071 | __PRETTY_FUNCTION__, p.prefixlen); | |
1072 | return; | |
1073 | } | |
1074 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1075 | l += IPV6_MAX_BYTELEN; | |
1076 | } else { | |
af4c2728 | 1077 | flog_err( |
e914ccbe | 1078 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1079 | "rnh_register: Received unknown family type %d\n", |
1080 | p.family); | |
1081 | return; | |
1082 | } | |
1d30d1f4 DS |
1083 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type, &exist); |
1084 | if (!rnh) | |
1085 | return; | |
1086 | ||
bf094f69 QY |
1087 | if (type == RNH_NEXTHOP_TYPE) { |
1088 | if (flags | |
1089 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1090 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1091 | else if (!flags | |
1092 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1093 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1094 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
1095 | if (flags | |
1096 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
1097 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1098 | else if (!flags | |
1099 | && CHECK_FLAG(rnh->flags, | |
1100 | ZEBRA_NHT_EXACT_MATCH)) | |
1101 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1102 | } | |
1103 | ||
1104 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
1105 | /* Anything not AF_INET/INET6 has been filtered out above */ | |
1d30d1f4 | 1106 | if (!exist) |
73bf60a0 RW |
1107 | zebra_evaluate_rnh(zvrf, family2afi(p.family), 1, type, |
1108 | &p); | |
bf094f69 QY |
1109 | } |
1110 | ||
1111 | stream_failure: | |
1112 | return; | |
1113 | } | |
1114 | ||
1115 | /* Nexthop register */ | |
1116 | static void zread_rnh_unregister(ZAPI_HANDLER_ARGS) | |
1117 | { | |
1118 | struct rnh *rnh; | |
1119 | struct stream *s; | |
1120 | struct prefix p; | |
1121 | unsigned short l = 0; | |
1122 | uint16_t type = cmd2type[hdr->command]; | |
1123 | ||
1124 | if (IS_ZEBRA_DEBUG_NHT) | |
1125 | zlog_debug( | |
1126 | "rnh_unregister msg from client %s: hdr->length=%d vrf: %u\n", | |
1127 | zebra_route_string(client->proto), hdr->length, | |
1128 | zvrf->vrf->vrf_id); | |
1129 | ||
1130 | s = msg; | |
1131 | ||
1132 | while (l < hdr->length) { | |
1133 | uint8_t flags; | |
1134 | ||
1135 | STREAM_GETC(s, flags); | |
1136 | if (flags != 0) | |
1137 | goto stream_failure; | |
1138 | ||
1139 | STREAM_GETW(s, p.family); | |
1140 | STREAM_GETC(s, p.prefixlen); | |
1141 | l += 4; | |
1142 | if (p.family == AF_INET) { | |
ab5990d8 | 1143 | client->v4_nh_watch_rem_cnt++; |
bf094f69 | 1144 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1145 | zlog_debug( |
bf094f69 QY |
1146 | "%s: Specified prefix hdr->length %d is to large for a v4 address", |
1147 | __PRETTY_FUNCTION__, p.prefixlen); | |
1148 | return; | |
1149 | } | |
1150 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1151 | l += IPV4_MAX_BYTELEN; | |
1152 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1153 | client->v6_nh_watch_rem_cnt++; |
bf094f69 | 1154 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1155 | zlog_debug( |
bf094f69 QY |
1156 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
1157 | __PRETTY_FUNCTION__, p.prefixlen); | |
1158 | return; | |
1159 | } | |
1160 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1161 | l += IPV6_MAX_BYTELEN; | |
1162 | } else { | |
af4c2728 | 1163 | flog_err( |
e914ccbe | 1164 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1165 | "rnh_register: Received unknown family type %d\n", |
1166 | p.family); | |
1167 | return; | |
1168 | } | |
1169 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
1170 | if (rnh) { | |
1171 | client->nh_dereg_time = monotime(NULL); | |
1172 | zebra_remove_rnh_client(rnh, client, type); | |
1173 | } | |
1174 | } | |
1175 | stream_failure: | |
1176 | return; | |
1177 | } | |
1178 | ||
1179 | #define ZEBRA_MIN_FEC_LENGTH 5 | |
1180 | ||
1181 | /* FEC register */ | |
1182 | static void zread_fec_register(ZAPI_HANDLER_ARGS) | |
1183 | { | |
1184 | struct stream *s; | |
1185 | unsigned short l = 0; | |
1186 | struct prefix p; | |
1187 | uint16_t flags; | |
57592a53 | 1188 | uint32_t label = MPLS_INVALID_LABEL; |
bf094f69 QY |
1189 | uint32_t label_index = MPLS_INVALID_LABEL_INDEX; |
1190 | ||
1191 | s = msg; | |
1192 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1193 | if (!zvrf) | |
8b1766b1 | 1194 | return; |
bf094f69 QY |
1195 | |
1196 | /* | |
1197 | * The minimum amount of data that can be sent for one fec | |
1198 | * registration | |
1199 | */ | |
1200 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1201 | flog_err( |
e914ccbe | 1202 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1203 | "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode", |
1204 | hdr->length); | |
1205 | return; | |
1206 | } | |
1207 | ||
1208 | while (l < hdr->length) { | |
1209 | STREAM_GETW(s, flags); | |
1210 | memset(&p, 0, sizeof(p)); | |
1211 | STREAM_GETW(s, p.family); | |
1212 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1213 | flog_err( |
e914ccbe | 1214 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1215 | "fec_register: Received unknown family type %d\n", |
1216 | p.family); | |
1217 | return; | |
1218 | } | |
1219 | STREAM_GETC(s, p.prefixlen); | |
1220 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1221 | || (p.family == AF_INET6 | |
1222 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1223 | zlog_debug( |
bf094f69 QY |
1224 | "%s: Specified prefix hdr->length: %d is to long for %d", |
1225 | __PRETTY_FUNCTION__, p.prefixlen, p.family); | |
1226 | return; | |
1227 | } | |
1228 | l += 5; | |
1229 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1230 | l += PSIZE(p.prefixlen); | |
57592a53 AD |
1231 | if (flags & ZEBRA_FEC_REGISTER_LABEL) { |
1232 | STREAM_GETL(s, label); | |
1233 | l += 4; | |
1234 | } else if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { | |
bf094f69 QY |
1235 | STREAM_GETL(s, label_index); |
1236 | l += 4; | |
57592a53 AD |
1237 | } |
1238 | ||
1239 | zebra_mpls_fec_register(zvrf, &p, label, label_index, client); | |
bf094f69 QY |
1240 | } |
1241 | ||
1242 | stream_failure: | |
1243 | return; | |
1244 | } | |
1245 | ||
1246 | /* FEC unregister */ | |
1247 | static void zread_fec_unregister(ZAPI_HANDLER_ARGS) | |
1248 | { | |
1249 | struct stream *s; | |
1250 | unsigned short l = 0; | |
1251 | struct prefix p; | |
1252 | uint16_t flags; | |
1253 | ||
1254 | s = msg; | |
1255 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1256 | if (!zvrf) | |
8b1766b1 | 1257 | return; |
bf094f69 QY |
1258 | |
1259 | /* | |
1260 | * The minimum amount of data that can be sent for one | |
1261 | * fec unregistration | |
1262 | */ | |
1263 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1264 | flog_err( |
e914ccbe | 1265 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1266 | "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode", |
1267 | hdr->length); | |
1268 | return; | |
1269 | } | |
1270 | ||
1271 | while (l < hdr->length) { | |
1272 | STREAM_GETW(s, flags); | |
1273 | if (flags != 0) | |
1274 | goto stream_failure; | |
1275 | ||
1276 | memset(&p, 0, sizeof(p)); | |
1277 | STREAM_GETW(s, p.family); | |
1278 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1279 | flog_err( |
e914ccbe | 1280 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1281 | "fec_unregister: Received unknown family type %d\n", |
1282 | p.family); | |
1283 | return; | |
1284 | } | |
1285 | STREAM_GETC(s, p.prefixlen); | |
1286 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1287 | || (p.family == AF_INET6 | |
1288 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1289 | zlog_debug( |
bf094f69 QY |
1290 | "%s: Received prefix hdr->length %d which is greater than %d can support", |
1291 | __PRETTY_FUNCTION__, p.prefixlen, p.family); | |
1292 | return; | |
1293 | } | |
1294 | l += 5; | |
1295 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1296 | l += PSIZE(p.prefixlen); | |
1297 | zebra_mpls_fec_unregister(zvrf, &p, client); | |
1298 | } | |
1299 | ||
1300 | stream_failure: | |
1301 | return; | |
1302 | } | |
1303 | ||
1304 | ||
1305 | /* | |
1306 | * Register zebra server interface information. | |
1307 | * Send current all interface and address information. | |
1308 | */ | |
1309 | static void zread_interface_add(ZAPI_HANDLER_ARGS) | |
1310 | { | |
1311 | struct vrf *vrf; | |
1312 | struct interface *ifp; | |
1313 | ||
bf094f69 QY |
1314 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { |
1315 | FOR_ALL_INTERFACES (vrf, ifp) { | |
1316 | /* Skip pseudo interface. */ | |
1317 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1318 | continue; | |
1319 | ||
1320 | zsend_interface_add(client, ifp); | |
27ecbea3 | 1321 | zsend_interface_link_params(client, ifp); |
bf094f69 QY |
1322 | zsend_interface_addresses(client, ifp); |
1323 | } | |
1324 | } | |
1325 | } | |
1326 | ||
1327 | /* Unregister zebra server interface information. */ | |
1328 | static void zread_interface_delete(ZAPI_HANDLER_ARGS) | |
1329 | { | |
bf094f69 QY |
1330 | } |
1331 | ||
1332 | void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, | |
1333 | const unsigned int nexthop_num) | |
1334 | { | |
1335 | if (nexthop_num > multipath_num) { | |
1336 | char buff[PREFIX2STR_BUFFER]; | |
8b1766b1 | 1337 | |
bf094f69 | 1338 | prefix2str(p, buff, sizeof(buff)); |
9df414fe | 1339 | flog_warn( |
e914ccbe | 1340 | EC_ZEBRA_MORE_NH_THAN_MULTIPATH, |
bf094f69 QY |
1341 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", |
1342 | caller, buff, nexthop_num, multipath_num); | |
1343 | } | |
1344 | } | |
1345 | ||
1346 | static void zread_route_add(ZAPI_HANDLER_ARGS) | |
1347 | { | |
1348 | struct stream *s; | |
1349 | struct zapi_route api; | |
1350 | struct zapi_nexthop *api_nh; | |
1351 | afi_t afi; | |
1352 | struct prefix_ipv6 *src_p = NULL; | |
1353 | struct route_entry *re; | |
1354 | struct nexthop *nexthop = NULL; | |
1355 | int i, ret; | |
1356 | vrf_id_t vrf_id = 0; | |
1357 | struct ipaddr vtep_ip; | |
1358 | ||
1359 | s = msg; | |
1360 | if (zapi_route_decode(s, &api) < 0) { | |
1361 | if (IS_ZEBRA_DEBUG_RECV) | |
1362 | zlog_debug("%s: Unable to decode zapi_route sent", | |
1363 | __PRETTY_FUNCTION__); | |
1364 | return; | |
1365 | } | |
1366 | ||
1367 | if (IS_ZEBRA_DEBUG_RECV) { | |
1368 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 1369 | |
bf094f69 QY |
1370 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
1371 | zlog_debug("%s: p=%s, ZAPI_MESSAGE_LABEL: %sset, flags=0x%x", | |
1372 | __func__, buf_prefix, | |
1373 | (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) ? "" | |
1374 | : "un"), | |
1375 | api.flags); | |
1376 | } | |
1377 | ||
1378 | /* Allocate new route. */ | |
1379 | vrf_id = zvrf_id(zvrf); | |
1380 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1381 | re->type = api.type; | |
1382 | re->instance = api.instance; | |
1383 | re->flags = api.flags; | |
1384 | re->uptime = time(NULL); | |
1385 | re->vrf_id = vrf_id; | |
1386 | if (api.tableid && vrf_id == VRF_DEFAULT) | |
1387 | re->table = api.tableid; | |
1388 | else | |
1389 | re->table = zvrf->table_id; | |
1390 | ||
7fcb24bb RW |
1391 | if (!CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP) |
1392 | || api.nexthop_num == 0) { | |
1393 | char buf_prefix[PREFIX_STRLEN]; | |
1394 | ||
1395 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); | |
1396 | flog_warn(EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS, | |
1397 | "%s: received a route without nexthops for prefix %s", | |
1398 | __func__, buf_prefix); | |
1399 | XFREE(MTYPE_RE, re); | |
1400 | return; | |
1401 | } | |
1402 | ||
bf094f69 QY |
1403 | /* |
1404 | * TBD should _all_ of the nexthop add operations use | |
1405 | * api_nh->vrf_id instead of re->vrf_id ? I only changed | |
1406 | * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6. | |
1407 | */ | |
7fcb24bb RW |
1408 | for (i = 0; i < api.nexthop_num; i++) { |
1409 | api_nh = &api.nexthops[i]; | |
1410 | ifindex_t ifindex = 0; | |
1411 | ||
1412 | if (IS_ZEBRA_DEBUG_RECV) | |
1413 | zlog_debug("nh type %d", api_nh->type); | |
1414 | ||
1415 | switch (api_nh->type) { | |
1416 | case NEXTHOP_TYPE_IFINDEX: | |
1417 | nexthop = route_entry_nexthop_ifindex_add( | |
1418 | re, api_nh->ifindex, api_nh->vrf_id); | |
1419 | break; | |
1420 | case NEXTHOP_TYPE_IPV4: | |
1421 | if (IS_ZEBRA_DEBUG_RECV) { | |
1422 | char nhbuf[INET6_ADDRSTRLEN] = {0}; | |
1423 | ||
1424 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1425 | INET6_ADDRSTRLEN); | |
1426 | zlog_debug("%s: nh=%s, vrf_id=%d", __func__, | |
1427 | nhbuf, api_nh->vrf_id); | |
1428 | } | |
1429 | nexthop = route_entry_nexthop_ipv4_add( | |
1430 | re, &api_nh->gate.ipv4, NULL, api_nh->vrf_id); | |
1431 | break; | |
1432 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1433 | ||
1434 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
1435 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1436 | ifindex = get_l3vni_svi_ifindex(vrf_id); | |
1437 | } else { | |
1438 | ifindex = api_nh->ifindex; | |
bf094f69 QY |
1439 | } |
1440 | ||
7fcb24bb RW |
1441 | if (IS_ZEBRA_DEBUG_RECV) { |
1442 | char nhbuf[INET6_ADDRSTRLEN] = {0}; | |
1443 | ||
1444 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1445 | INET6_ADDRSTRLEN); | |
1446 | zlog_debug( | |
1447 | "%s: nh=%s, vrf_id=%d (re->vrf_id=%d), ifindex=%d", | |
1448 | __func__, nhbuf, api_nh->vrf_id, | |
1449 | re->vrf_id, ifindex); | |
bf094f69 | 1450 | } |
7fcb24bb RW |
1451 | nexthop = route_entry_nexthop_ipv4_ifindex_add( |
1452 | re, &api_nh->gate.ipv4, NULL, ifindex, | |
1453 | api_nh->vrf_id); | |
1454 | ||
1455 | /* if this an EVPN route entry, | |
1456 | * program the nh as neigh | |
1457 | */ | |
1458 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1459 | SET_FLAG(nexthop->flags, | |
1460 | NEXTHOP_FLAG_EVPN_RVTEP); | |
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( | |
1466 | vrf_id, &api_nh->rmac, &vtep_ip, | |
1467 | &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)); | |
1476 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1477 | ifindex = get_l3vni_svi_ifindex(vrf_id); | |
1478 | } else { | |
1479 | ifindex = api_nh->ifindex; | |
1480 | } | |
1481 | ||
1482 | nexthop = route_entry_nexthop_ipv6_ifindex_add( | |
1483 | re, &api_nh->gate.ipv6, ifindex, | |
1484 | api_nh->vrf_id); | |
1485 | ||
1486 | /* if this an EVPN route entry, | |
1487 | * program the nh as neigh | |
1488 | */ | |
1489 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1490 | SET_FLAG(nexthop->flags, | |
1491 | NEXTHOP_FLAG_EVPN_RVTEP); | |
1492 | vtep_ip.ipa_type = IPADDR_V6; | |
1493 | memcpy(&vtep_ip.ipaddr_v6, &(api_nh->gate.ipv6), | |
1494 | sizeof(struct in6_addr)); | |
1495 | zebra_vxlan_evpn_vrf_route_add( | |
1496 | vrf_id, &api_nh->rmac, &vtep_ip, | |
1497 | &api.prefix); | |
1498 | } | |
1499 | break; | |
1500 | case NEXTHOP_TYPE_BLACKHOLE: | |
1501 | nexthop = route_entry_nexthop_blackhole_add( | |
1502 | re, api_nh->bh_type); | |
1503 | break; | |
bf094f69 | 1504 | } |
bf094f69 | 1505 | |
7fcb24bb RW |
1506 | if (!nexthop) { |
1507 | flog_warn( | |
1508 | EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
1509 | "%s: Nexthops Specified: %d but we failed to properly create one", | |
1510 | __PRETTY_FUNCTION__, api.nexthop_num); | |
1511 | nexthops_free(re->ng.nexthop); | |
1512 | XFREE(MTYPE_RE, re); | |
1513 | return; | |
1514 | } | |
fe85601c DS |
1515 | if (api_nh->onlink) |
1516 | SET_FLAG(nexthop->flags, NEXTHOP_FLAG_ONLINK); | |
1517 | ||
7fcb24bb RW |
1518 | /* MPLS labels for BGP-LU or Segment Routing */ |
1519 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) | |
1520 | && api_nh->type != NEXTHOP_TYPE_IFINDEX | |
1521 | && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) { | |
1522 | enum lsp_types_t label_type; | |
1523 | ||
1524 | label_type = lsp_type_from_re_type(client->proto); | |
1525 | ||
1526 | if (IS_ZEBRA_DEBUG_RECV) { | |
1527 | zlog_debug( | |
1528 | "%s: adding %d labels of type %d (1st=%u)", | |
1529 | __func__, api_nh->label_num, label_type, | |
1530 | api_nh->labels[0]); | |
1531 | } | |
1532 | ||
1533 | nexthop_add_labels(nexthop, label_type, | |
1534 | api_nh->label_num, | |
1535 | &api_nh->labels[0]); | |
1536 | } | |
1537 | } | |
1538 | ||
bf094f69 QY |
1539 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) |
1540 | re->distance = api.distance; | |
1541 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1542 | re->metric = api.metric; | |
1543 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1544 | re->tag = api.tag; | |
1545 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_MTU)) | |
1546 | re->mtu = api.mtu; | |
1547 | ||
1548 | afi = family2afi(api.prefix.family); | |
1549 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1550 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1551 | "%s: Received SRC Prefix but afi is not v6", |
bf094f69 QY |
1552 | __PRETTY_FUNCTION__); |
1553 | nexthops_free(re->ng.nexthop); | |
1554 | XFREE(MTYPE_RE, re); | |
1555 | return; | |
1556 | } | |
1557 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1558 | src_p = &api.src_prefix; | |
1559 | ||
1560 | ret = rib_add_multipath(afi, api.safi, &api.prefix, src_p, re); | |
1561 | ||
1562 | /* Stats */ | |
1563 | switch (api.prefix.family) { | |
1564 | case AF_INET: | |
1565 | if (ret > 0) | |
1566 | client->v4_route_add_cnt++; | |
1567 | else if (ret < 0) | |
1568 | client->v4_route_upd8_cnt++; | |
1569 | break; | |
1570 | case AF_INET6: | |
1571 | if (ret > 0) | |
1572 | client->v6_route_add_cnt++; | |
1573 | else if (ret < 0) | |
1574 | client->v6_route_upd8_cnt++; | |
1575 | break; | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | static void zread_route_del(ZAPI_HANDLER_ARGS) | |
1580 | { | |
1581 | struct stream *s; | |
1582 | struct zapi_route api; | |
1583 | afi_t afi; | |
1584 | struct prefix_ipv6 *src_p = NULL; | |
1585 | uint32_t table_id; | |
1586 | ||
1587 | s = msg; | |
1588 | if (zapi_route_decode(s, &api) < 0) | |
1589 | return; | |
1590 | ||
1591 | afi = family2afi(api.prefix.family); | |
1592 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1593 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1594 | "%s: Received a src prefix while afi is not v6", |
bf094f69 QY |
1595 | __PRETTY_FUNCTION__); |
1596 | return; | |
1597 | } | |
1598 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1599 | src_p = &api.src_prefix; | |
1600 | ||
1601 | if (api.vrf_id == VRF_DEFAULT && api.tableid != 0) | |
1602 | table_id = api.tableid; | |
1603 | else | |
1604 | table_id = zvrf->table_id; | |
1605 | ||
1606 | rib_delete(afi, api.safi, zvrf_id(zvrf), api.type, api.instance, | |
1607 | api.flags, &api.prefix, src_p, NULL, table_id, api.metric, | |
40ecd8e4 | 1608 | api.distance, false); |
bf094f69 QY |
1609 | |
1610 | /* Stats */ | |
1611 | switch (api.prefix.family) { | |
1612 | case AF_INET: | |
1613 | client->v4_route_del_cnt++; | |
1614 | break; | |
1615 | case AF_INET6: | |
1616 | client->v6_route_del_cnt++; | |
1617 | break; | |
1618 | } | |
1619 | } | |
1620 | ||
bf094f69 QY |
1621 | /* MRIB Nexthop lookup for IPv4. */ |
1622 | static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS) | |
1623 | { | |
1624 | struct in_addr addr; | |
1625 | struct route_entry *re; | |
1626 | ||
1627 | STREAM_GET(&addr.s_addr, msg, IPV4_MAX_BYTELEN); | |
1628 | re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
1629 | zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); | |
1630 | ||
1631 | stream_failure: | |
1632 | return; | |
1633 | } | |
1634 | ||
bf094f69 QY |
1635 | /* Register zebra server router-id information. Send current router-id */ |
1636 | static void zread_router_id_add(ZAPI_HANDLER_ARGS) | |
1637 | { | |
1638 | struct prefix p; | |
1639 | ||
1640 | /* Router-id information is needed. */ | |
1641 | vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); | |
1642 | ||
1643 | router_id_get(&p, zvrf_id(zvrf)); | |
1644 | ||
1645 | zsend_router_id_update(client, &p, zvrf_id(zvrf)); | |
1646 | } | |
1647 | ||
1648 | /* Unregister zebra server router-id information. */ | |
1649 | static void zread_router_id_delete(ZAPI_HANDLER_ARGS) | |
1650 | { | |
1651 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1652 | } | |
1653 | ||
1654 | static void zsend_capabilities(struct zserv *client, struct zebra_vrf *zvrf) | |
1655 | { | |
1656 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1657 | ||
1658 | zclient_create_header(s, ZEBRA_CAPABILITIES, zvrf->vrf->vrf_id); | |
bb6b7f79 | 1659 | stream_putl(s, vrf_get_backend()); |
bf094f69 QY |
1660 | stream_putc(s, mpls_enabled); |
1661 | stream_putl(s, multipath_num); | |
02c0866d | 1662 | stream_putc(s, zebra_mlag_get_role()); |
bf094f69 QY |
1663 | |
1664 | stream_putw_at(s, 0, stream_get_endp(s)); | |
21ccc0cf | 1665 | zserv_send_message(client, s); |
bf094f69 QY |
1666 | } |
1667 | ||
b120fe3b DS |
1668 | void zsend_capabilities_all_clients(void) |
1669 | { | |
1670 | struct listnode *node, *nnode; | |
1671 | struct zebra_vrf *zvrf; | |
1672 | struct zserv *client; | |
1673 | ||
1674 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1675 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { | |
1676 | zsend_capabilities(client, zvrf); | |
1677 | } | |
1678 | } | |
1679 | ||
bf094f69 QY |
1680 | /* Tie up route-type and client->sock */ |
1681 | static void zread_hello(ZAPI_HANDLER_ARGS) | |
1682 | { | |
1683 | /* type of protocol (lib/zebra.h) */ | |
1684 | uint8_t proto; | |
1685 | unsigned short instance; | |
1686 | uint8_t notify; | |
1687 | ||
1688 | STREAM_GETC(msg, proto); | |
1689 | STREAM_GETW(msg, instance); | |
1690 | STREAM_GETC(msg, notify); | |
1691 | if (notify) | |
1692 | client->notify_owner = true; | |
1693 | ||
1694 | /* accept only dynamic routing protocols */ | |
f23cbcda | 1695 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_CONNECT)) { |
bf094f69 QY |
1696 | zlog_notice( |
1697 | "client %d says hello and bids fair to announce only %s routes vrf=%u", | |
1698 | client->sock, zebra_route_string(proto), | |
1699 | zvrf->vrf->vrf_id); | |
1700 | if (instance) | |
1701 | zlog_notice("client protocol instance %d", instance); | |
1702 | ||
1703 | client->proto = proto; | |
1704 | client->instance = instance; | |
1705 | } | |
1706 | ||
1707 | zsend_capabilities(client, zvrf); | |
bb6b7f79 | 1708 | zebra_vrf_update_all(client); |
bf094f69 QY |
1709 | stream_failure: |
1710 | return; | |
1711 | } | |
1712 | ||
1713 | /* Unregister all information in a VRF. */ | |
1714 | static void zread_vrf_unregister(ZAPI_HANDLER_ARGS) | |
1715 | { | |
1716 | int i; | |
1717 | afi_t afi; | |
1718 | ||
49db7a7b | 1719 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
bf094f69 QY |
1720 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
1721 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
49db7a7b RW |
1722 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); |
1723 | } | |
bf094f69 QY |
1724 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); |
1725 | } | |
1726 | ||
1727 | static void zread_mpls_labels(ZAPI_HANDLER_ARGS) | |
1728 | { | |
1729 | struct stream *s; | |
1730 | enum lsp_types_t type; | |
1731 | struct prefix prefix; | |
1732 | enum nexthop_types_t gtype; | |
1733 | union g_addr gate; | |
1734 | ifindex_t ifindex; | |
1735 | mpls_label_t in_label, out_label; | |
1736 | uint8_t distance; | |
1737 | ||
1738 | /* Get input stream. */ | |
1739 | s = msg; | |
1740 | ||
1741 | /* Get data. */ | |
1742 | STREAM_GETC(s, type); | |
1743 | STREAM_GETL(s, prefix.family); | |
1744 | switch (prefix.family) { | |
1745 | case AF_INET: | |
1746 | STREAM_GET(&prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1747 | STREAM_GETC(s, prefix.prefixlen); | |
1748 | if (prefix.prefixlen > IPV4_MAX_BITLEN) { | |
9df414fe | 1749 | zlog_debug( |
bf094f69 QY |
1750 | "%s: Specified prefix length %d is greater than a v4 address can support", |
1751 | __PRETTY_FUNCTION__, prefix.prefixlen); | |
1752 | return; | |
1753 | } | |
1754 | STREAM_GET(&gate.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
1755 | break; | |
1756 | case AF_INET6: | |
1757 | STREAM_GET(&prefix.u.prefix6, s, 16); | |
1758 | STREAM_GETC(s, prefix.prefixlen); | |
1759 | if (prefix.prefixlen > IPV6_MAX_BITLEN) { | |
9df414fe | 1760 | zlog_debug( |
bf094f69 QY |
1761 | "%s: Specified prefix length %d is greater than a v6 address can support", |
1762 | __PRETTY_FUNCTION__, prefix.prefixlen); | |
1763 | return; | |
1764 | } | |
1765 | STREAM_GET(&gate.ipv6, s, 16); | |
1766 | break; | |
1767 | default: | |
9df414fe QY |
1768 | zlog_debug("%s: Specified AF %d is not supported for this call", |
1769 | __PRETTY_FUNCTION__, prefix.family); | |
bf094f69 QY |
1770 | return; |
1771 | } | |
1772 | STREAM_GETL(s, ifindex); | |
1773 | STREAM_GETC(s, distance); | |
1774 | STREAM_GETL(s, in_label); | |
1775 | STREAM_GETL(s, out_label); | |
1776 | ||
1777 | switch (prefix.family) { | |
1778 | case AF_INET: | |
1779 | if (ifindex) | |
1780 | gtype = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1781 | else | |
1782 | gtype = NEXTHOP_TYPE_IPV4; | |
1783 | break; | |
1784 | case AF_INET6: | |
1785 | if (ifindex) | |
1786 | gtype = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1787 | else | |
1788 | gtype = NEXTHOP_TYPE_IPV6; | |
1789 | break; | |
1790 | default: | |
1791 | return; | |
1792 | } | |
1793 | ||
1794 | if (!mpls_enabled) | |
1795 | return; | |
1796 | ||
1797 | if (hdr->command == ZEBRA_MPLS_LABELS_ADD) { | |
1798 | mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, | |
1799 | ifindex); | |
1800 | mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1801 | distance, out_label); | |
1802 | } else if (hdr->command == ZEBRA_MPLS_LABELS_DELETE) { | |
1803 | mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, ifindex); | |
1804 | mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1805 | distance, out_label); | |
1806 | } | |
1807 | stream_failure: | |
1808 | return; | |
1809 | } | |
1810 | ||
1811 | /* Send response to a table manager connect request to client */ | |
1812 | static void zread_table_manager_connect(struct zserv *client, | |
1813 | struct stream *msg, vrf_id_t vrf_id) | |
1814 | { | |
1815 | struct stream *s; | |
1816 | uint8_t proto; | |
1817 | uint16_t instance; | |
1818 | ||
1819 | s = msg; | |
1820 | ||
1821 | /* Get data. */ | |
1822 | STREAM_GETC(s, proto); | |
1823 | STREAM_GETW(s, instance); | |
1824 | ||
1825 | /* accept only dynamic routing protocols */ | |
1826 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 1827 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
1828 | "client %d has wrong protocol %s", client->sock, |
1829 | zebra_route_string(proto)); | |
bf094f69 QY |
1830 | zsend_table_manager_connect_response(client, vrf_id, 1); |
1831 | return; | |
1832 | } | |
1833 | zlog_notice("client %d with vrf %u instance %u connected as %s", | |
1834 | client->sock, vrf_id, instance, zebra_route_string(proto)); | |
1835 | client->proto = proto; | |
1836 | client->instance = instance; | |
1837 | ||
1838 | /* | |
1839 | * Release previous labels of same protocol and instance. | |
1840 | * This is done in case it restarted from an unexpected shutdown. | |
1841 | */ | |
453844ab | 1842 | release_daemon_table_chunks(client); |
bf094f69 QY |
1843 | |
1844 | zsend_table_manager_connect_response(client, vrf_id, 0); | |
1845 | ||
1846 | stream_failure: | |
1847 | return; | |
1848 | } | |
1849 | ||
1850 | static void zread_label_manager_connect(struct zserv *client, | |
1851 | struct stream *msg, vrf_id_t vrf_id) | |
1852 | { | |
1853 | struct stream *s; | |
1854 | /* type of protocol (lib/zebra.h) */ | |
1855 | uint8_t proto; | |
1856 | unsigned short instance; | |
1857 | ||
1858 | /* Get input stream. */ | |
1859 | s = msg; | |
1860 | ||
1861 | /* Get data. */ | |
1862 | STREAM_GETC(s, proto); | |
1863 | STREAM_GETW(s, instance); | |
1864 | ||
1865 | /* accept only dynamic routing protocols */ | |
1866 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 1867 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
1868 | "client %d has wrong protocol %s", client->sock, |
1869 | zebra_route_string(proto)); | |
f533be73 | 1870 | if (client->is_synchronous) |
1871 | zsend_label_manager_connect_response(client, vrf_id, 1); | |
bf094f69 QY |
1872 | return; |
1873 | } | |
1874 | zlog_notice("client %d with vrf %u instance %u connected as %s", | |
1875 | client->sock, vrf_id, instance, zebra_route_string(proto)); | |
1876 | client->proto = proto; | |
1877 | client->instance = instance; | |
1878 | ||
1879 | /* | |
453844ab QY |
1880 | * Release previous labels of same protocol and instance. |
1881 | * This is done in case it restarted from an unexpected shutdown. | |
1882 | */ | |
1883 | release_daemon_label_chunks(client); | |
bf094f69 QY |
1884 | |
1885 | zlog_debug( | |
1886 | " Label Manager client connected: sock %d, proto %s, vrf %u instance %u", | |
1887 | client->sock, zebra_route_string(proto), vrf_id, instance); | |
1888 | /* send response back */ | |
f533be73 | 1889 | if (client->is_synchronous) |
1890 | zsend_label_manager_connect_response(client, vrf_id, 0); | |
bf094f69 QY |
1891 | |
1892 | stream_failure: | |
1893 | return; | |
1894 | } | |
1895 | ||
1896 | static void zread_get_label_chunk(struct zserv *client, struct stream *msg, | |
1897 | vrf_id_t vrf_id) | |
1898 | { | |
1899 | struct stream *s; | |
1900 | uint8_t keep; | |
1901 | uint32_t size; | |
1902 | struct label_manager_chunk *lmc; | |
5dffb0e9 FR |
1903 | uint8_t proto; |
1904 | unsigned short instance; | |
bf094f69 QY |
1905 | |
1906 | /* Get input stream. */ | |
1907 | s = msg; | |
1908 | ||
1909 | /* Get data. */ | |
5dffb0e9 FR |
1910 | STREAM_GETC(s, proto); |
1911 | STREAM_GETW(s, instance); | |
bf094f69 QY |
1912 | STREAM_GETC(s, keep); |
1913 | STREAM_GETL(s, size); | |
1914 | ||
f533be73 | 1915 | lmc = assign_label_chunk(proto, instance, keep, size); |
bf094f69 | 1916 | if (!lmc) |
af4c2728 | 1917 | flog_err( |
e914ccbe | 1918 | EC_ZEBRA_LM_CANNOT_ASSIGN_CHUNK, |
0313523d | 1919 | "Unable to assign Label Chunk of size %u to %s instance %u", |
f533be73 | 1920 | size, zebra_route_string(proto), instance); |
bf094f69 | 1921 | else |
0313523d FR |
1922 | zlog_debug("Assigned Label Chunk %u - %u to %s instance %u", |
1923 | lmc->start, lmc->end, | |
f533be73 | 1924 | zebra_route_string(proto), instance); |
bf094f69 QY |
1925 | /* send response back */ |
1926 | zsend_assign_label_chunk_response(client, vrf_id, lmc); | |
1927 | ||
1928 | stream_failure: | |
1929 | return; | |
1930 | } | |
1931 | ||
1932 | static void zread_release_label_chunk(struct zserv *client, struct stream *msg) | |
1933 | { | |
1934 | struct stream *s; | |
1935 | uint32_t start, end; | |
5dffb0e9 FR |
1936 | uint8_t proto; |
1937 | unsigned short instance; | |
bf094f69 QY |
1938 | |
1939 | /* Get input stream. */ | |
1940 | s = msg; | |
1941 | ||
1942 | /* Get data. */ | |
5dffb0e9 FR |
1943 | STREAM_GETC(s, proto); |
1944 | STREAM_GETW(s, instance); | |
bf094f69 QY |
1945 | STREAM_GETL(s, start); |
1946 | STREAM_GETL(s, end); | |
1947 | ||
f533be73 | 1948 | release_label_chunk(proto, instance, start, end); |
bf094f69 QY |
1949 | |
1950 | stream_failure: | |
1951 | return; | |
1952 | } | |
1953 | static void zread_label_manager_request(ZAPI_HANDLER_ARGS) | |
1954 | { | |
1955 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
f533be73 | 1956 | client->is_synchronous = hdr->command == |
1957 | ZEBRA_LABEL_MANAGER_CONNECT; | |
bf094f69 QY |
1958 | |
1959 | /* external label manager */ | |
1960 | if (lm_is_external) | |
0313523d | 1961 | zread_relay_label_manager_request(hdr->command, client, msg, |
bf094f69 QY |
1962 | zvrf_id(zvrf)); |
1963 | /* this is a label manager */ | |
1964 | else { | |
f533be73 | 1965 | if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT || |
1966 | hdr->command == ZEBRA_LABEL_MANAGER_CONNECT_ASYNC) | |
bf094f69 QY |
1967 | zread_label_manager_connect(client, msg, zvrf_id(zvrf)); |
1968 | else { | |
bf094f69 QY |
1969 | if (hdr->command == ZEBRA_GET_LABEL_CHUNK) |
1970 | zread_get_label_chunk(client, msg, | |
1971 | zvrf_id(zvrf)); | |
1972 | else if (hdr->command == ZEBRA_RELEASE_LABEL_CHUNK) | |
1973 | zread_release_label_chunk(client, msg); | |
1974 | } | |
1975 | } | |
1976 | } | |
1977 | ||
1978 | static void zread_get_table_chunk(struct zserv *client, struct stream *msg, | |
1979 | vrf_id_t vrf_id) | |
1980 | { | |
1981 | struct stream *s; | |
1982 | uint32_t size; | |
1983 | struct table_manager_chunk *tmc; | |
1984 | ||
1985 | /* Get input stream. */ | |
1986 | s = msg; | |
1987 | ||
1988 | /* Get data. */ | |
1989 | STREAM_GETL(s, size); | |
1990 | ||
1991 | tmc = assign_table_chunk(client->proto, client->instance, size); | |
1992 | if (!tmc) | |
e914ccbe | 1993 | flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK, |
1c50c1c0 QY |
1994 | "%s: Unable to assign Table Chunk of size %u", |
1995 | __func__, size); | |
bf094f69 QY |
1996 | else |
1997 | zlog_debug("Assigned Table Chunk %u - %u", tmc->start, | |
1998 | tmc->end); | |
1999 | /* send response back */ | |
2000 | zsend_assign_table_chunk_response(client, vrf_id, tmc); | |
2001 | ||
2002 | stream_failure: | |
2003 | return; | |
2004 | } | |
2005 | ||
2006 | static void zread_release_table_chunk(struct zserv *client, struct stream *msg) | |
2007 | { | |
2008 | struct stream *s; | |
2009 | uint32_t start, end; | |
2010 | ||
2011 | /* Get input stream. */ | |
2012 | s = msg; | |
2013 | ||
2014 | /* Get data. */ | |
2015 | STREAM_GETL(s, start); | |
2016 | STREAM_GETL(s, end); | |
2017 | ||
2018 | release_table_chunk(client->proto, client->instance, start, end); | |
2019 | ||
2020 | stream_failure: | |
2021 | return; | |
2022 | } | |
2023 | ||
2024 | static void zread_table_manager_request(ZAPI_HANDLER_ARGS) | |
2025 | { | |
2026 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
2027 | if (hdr->command == ZEBRA_TABLE_MANAGER_CONNECT) | |
2028 | zread_table_manager_connect(client, msg, zvrf_id(zvrf)); | |
2029 | else { | |
2030 | /* Sanity: don't allow 'unidentified' requests */ | |
2031 | if (!client->proto) { | |
af4c2728 | 2032 | flog_err( |
e914ccbe | 2033 | EC_ZEBRA_TM_ALIENS, |
bf094f69 QY |
2034 | "Got table request from an unidentified client"); |
2035 | return; | |
2036 | } | |
2037 | if (hdr->command == ZEBRA_GET_TABLE_CHUNK) | |
2038 | zread_get_table_chunk(client, msg, zvrf_id(zvrf)); | |
2039 | else if (hdr->command == ZEBRA_RELEASE_TABLE_CHUNK) | |
2040 | zread_release_table_chunk(client, msg); | |
2041 | } | |
2042 | } | |
2043 | ||
2044 | static void zread_pseudowire(ZAPI_HANDLER_ARGS) | |
2045 | { | |
2046 | struct stream *s; | |
2047 | char ifname[IF_NAMESIZE]; | |
2048 | ifindex_t ifindex; | |
2049 | int type; | |
2050 | int af; | |
2051 | union g_addr nexthop; | |
2052 | uint32_t local_label; | |
2053 | uint32_t remote_label; | |
2054 | uint8_t flags; | |
2055 | union pw_protocol_fields data; | |
2056 | uint8_t protocol; | |
2057 | struct zebra_pw *pw; | |
2058 | ||
2059 | /* Get input stream. */ | |
2060 | s = msg; | |
2061 | ||
2062 | /* Get data. */ | |
2063 | STREAM_GET(ifname, s, IF_NAMESIZE); | |
2064 | STREAM_GETL(s, ifindex); | |
2065 | STREAM_GETL(s, type); | |
2066 | STREAM_GETL(s, af); | |
2067 | switch (af) { | |
2068 | case AF_INET: | |
2069 | STREAM_GET(&nexthop.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
2070 | break; | |
2071 | case AF_INET6: | |
2072 | STREAM_GET(&nexthop.ipv6, s, 16); | |
2073 | break; | |
2074 | default: | |
2075 | return; | |
2076 | } | |
2077 | STREAM_GETL(s, local_label); | |
2078 | STREAM_GETL(s, remote_label); | |
2079 | STREAM_GETC(s, flags); | |
2080 | STREAM_GET(&data, s, sizeof(data)); | |
2081 | protocol = client->proto; | |
2082 | ||
2083 | pw = zebra_pw_find(zvrf, ifname); | |
2084 | switch (hdr->command) { | |
2085 | case ZEBRA_PW_ADD: | |
2086 | if (pw) { | |
e914ccbe | 2087 | flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS, |
9df414fe | 2088 | "%s: pseudowire %s already exists [%s]", |
bf094f69 QY |
2089 | __func__, ifname, |
2090 | zserv_command_string(hdr->command)); | |
2091 | return; | |
2092 | } | |
2093 | ||
2094 | zebra_pw_add(zvrf, ifname, protocol, client); | |
2095 | break; | |
2096 | case ZEBRA_PW_DELETE: | |
2097 | if (!pw) { | |
e914ccbe | 2098 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2099 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2100 | ifname, zserv_command_string(hdr->command)); |
2101 | return; | |
2102 | } | |
2103 | ||
2104 | zebra_pw_del(zvrf, pw); | |
2105 | break; | |
2106 | case ZEBRA_PW_SET: | |
2107 | case ZEBRA_PW_UNSET: | |
2108 | if (!pw) { | |
e914ccbe | 2109 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2110 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2111 | ifname, zserv_command_string(hdr->command)); |
2112 | return; | |
2113 | } | |
2114 | ||
2115 | switch (hdr->command) { | |
2116 | case ZEBRA_PW_SET: | |
2117 | pw->enabled = 1; | |
2118 | break; | |
2119 | case ZEBRA_PW_UNSET: | |
2120 | pw->enabled = 0; | |
2121 | break; | |
2122 | } | |
2123 | ||
2124 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
2125 | remote_label, flags, &data); | |
2126 | break; | |
2127 | } | |
2128 | ||
2129 | stream_failure: | |
2130 | return; | |
2131 | } | |
2132 | ||
2133 | static void zread_interface_set_master(ZAPI_HANDLER_ARGS) | |
2134 | { | |
2135 | struct interface *master; | |
2136 | struct interface *slave; | |
2137 | struct stream *s = msg; | |
2138 | int ifindex; | |
2139 | vrf_id_t vrf_id; | |
2140 | ||
2141 | STREAM_GETL(s, vrf_id); | |
2142 | STREAM_GETL(s, ifindex); | |
2143 | master = if_lookup_by_index(ifindex, vrf_id); | |
2144 | ||
2145 | STREAM_GETL(s, vrf_id); | |
2146 | STREAM_GETL(s, ifindex); | |
2147 | slave = if_lookup_by_index(ifindex, vrf_id); | |
2148 | ||
2149 | if (!master || !slave) | |
2150 | return; | |
2151 | ||
2152 | kernel_interface_set_master(master, slave); | |
2153 | ||
2154 | stream_failure: | |
2155 | return; | |
2156 | } | |
2157 | ||
2158 | ||
2159 | static void zread_vrf_label(ZAPI_HANDLER_ARGS) | |
2160 | { | |
2161 | struct interface *ifp; | |
2162 | mpls_label_t nlabel; | |
2163 | afi_t afi; | |
2164 | struct stream *s; | |
2165 | struct zebra_vrf *def_zvrf; | |
2166 | enum lsp_types_t ltype; | |
2167 | ||
2168 | s = msg; | |
2169 | STREAM_GETL(s, nlabel); | |
2170 | STREAM_GETC(s, afi); | |
2171 | if (nlabel == zvrf->label[afi]) { | |
2172 | /* | |
2173 | * Nothing to do here move along | |
2174 | */ | |
2175 | return; | |
2176 | } | |
2177 | ||
2178 | STREAM_GETC(s, ltype); | |
2179 | ||
2180 | if (zvrf->vrf->vrf_id != VRF_DEFAULT) | |
2181 | ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id); | |
2182 | else | |
2183 | ifp = if_lookup_by_name("lo", VRF_DEFAULT); | |
2184 | ||
2185 | if (!ifp) { | |
2186 | zlog_debug("Unable to find specified Interface for %s", | |
2187 | zvrf->vrf->name); | |
2188 | return; | |
2189 | } | |
2190 | ||
2191 | def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT); | |
2192 | ||
2193 | if (zvrf->label[afi] != MPLS_LABEL_NONE) { | |
2194 | afi_t scrubber; | |
2195 | bool really_remove; | |
2196 | ||
2197 | really_remove = true; | |
2198 | for (scrubber = AFI_IP; scrubber < AFI_MAX; scrubber++) { | |
2199 | if (scrubber == afi) | |
2200 | continue; | |
2201 | ||
2202 | if (zvrf->label[scrubber] == MPLS_LABEL_NONE) | |
2203 | continue; | |
2204 | ||
2205 | if (zvrf->label[afi] == zvrf->label[scrubber]) { | |
2206 | really_remove = false; | |
2207 | break; | |
2208 | } | |
2209 | } | |
2210 | ||
2211 | if (really_remove) | |
2212 | mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label[afi], | |
2213 | NEXTHOP_TYPE_IFINDEX, NULL, | |
2214 | ifp->ifindex); | |
2215 | } | |
2216 | ||
2217 | if (nlabel != MPLS_LABEL_NONE) | |
2218 | mpls_lsp_install(def_zvrf, ltype, nlabel, | |
2219 | MPLS_LABEL_IMPLICIT_NULL, NEXTHOP_TYPE_IFINDEX, | |
2220 | NULL, ifp->ifindex); | |
2221 | ||
2222 | zvrf->label[afi] = nlabel; | |
2223 | stream_failure: | |
2224 | return; | |
2225 | } | |
2226 | ||
2227 | static inline void zread_rule(ZAPI_HANDLER_ARGS) | |
2228 | { | |
2229 | struct zebra_pbr_rule zpr; | |
2230 | struct stream *s; | |
2231 | uint32_t total, i; | |
2232 | ifindex_t ifindex; | |
2233 | ||
2234 | s = msg; | |
2235 | STREAM_GETL(s, total); | |
2236 | ||
2237 | for (i = 0; i < total; i++) { | |
2238 | memset(&zpr, 0, sizeof(zpr)); | |
2239 | ||
2240 | zpr.sock = client->sock; | |
2241 | zpr.rule.vrf_id = hdr->vrf_id; | |
2242 | STREAM_GETL(s, zpr.rule.seq); | |
2243 | STREAM_GETL(s, zpr.rule.priority); | |
2244 | STREAM_GETL(s, zpr.rule.unique); | |
2245 | STREAM_GETC(s, zpr.rule.filter.src_ip.family); | |
2246 | STREAM_GETC(s, zpr.rule.filter.src_ip.prefixlen); | |
2247 | STREAM_GET(&zpr.rule.filter.src_ip.u.prefix, s, | |
2248 | prefix_blen(&zpr.rule.filter.src_ip)); | |
2249 | STREAM_GETW(s, zpr.rule.filter.src_port); | |
2250 | STREAM_GETC(s, zpr.rule.filter.dst_ip.family); | |
2251 | STREAM_GETC(s, zpr.rule.filter.dst_ip.prefixlen); | |
2252 | STREAM_GET(&zpr.rule.filter.dst_ip.u.prefix, s, | |
2253 | prefix_blen(&zpr.rule.filter.dst_ip)); | |
2254 | STREAM_GETW(s, zpr.rule.filter.dst_port); | |
2255 | STREAM_GETL(s, zpr.rule.filter.fwmark); | |
2256 | STREAM_GETL(s, zpr.rule.action.table); | |
2257 | STREAM_GETL(s, ifindex); | |
2258 | ||
2259 | if (ifindex) { | |
06432d4e PG |
2260 | zpr.ifp = if_lookup_by_index_per_ns( |
2261 | zvrf->zns, | |
2262 | ifindex); | |
bf094f69 QY |
2263 | if (!zpr.ifp) { |
2264 | zlog_debug("Failed to lookup ifindex: %u", | |
2265 | ifindex); | |
2266 | return; | |
2267 | } | |
2268 | } | |
2269 | ||
2270 | if (!is_default_prefix(&zpr.rule.filter.src_ip)) | |
2271 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_IP; | |
2272 | ||
2273 | if (!is_default_prefix(&zpr.rule.filter.dst_ip)) | |
2274 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_IP; | |
2275 | ||
2276 | if (zpr.rule.filter.src_port) | |
2277 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_PORT; | |
2278 | ||
2279 | if (zpr.rule.filter.dst_port) | |
2280 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_PORT; | |
2281 | ||
2282 | if (zpr.rule.filter.fwmark) | |
2283 | zpr.rule.filter.filter_bm |= PBR_FILTER_FWMARK; | |
2284 | ||
7f0ea8a4 | 2285 | zpr.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 | 2286 | if (hdr->command == ZEBRA_RULE_ADD) |
7f0ea8a4 | 2287 | zebra_pbr_add_rule(&zpr); |
bf094f69 | 2288 | else |
7f0ea8a4 | 2289 | zebra_pbr_del_rule(&zpr); |
bf094f69 QY |
2290 | } |
2291 | ||
2292 | stream_failure: | |
2293 | return; | |
2294 | } | |
2295 | ||
2296 | static inline void zread_ipset(ZAPI_HANDLER_ARGS) | |
2297 | { | |
2298 | struct zebra_pbr_ipset zpi; | |
2299 | struct stream *s; | |
2300 | uint32_t total, i; | |
2301 | ||
2302 | s = msg; | |
2303 | STREAM_GETL(s, total); | |
2304 | ||
2305 | for (i = 0; i < total; i++) { | |
2306 | memset(&zpi, 0, sizeof(zpi)); | |
2307 | ||
2308 | zpi.sock = client->sock; | |
be2028d1 | 2309 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2310 | STREAM_GETL(s, zpi.unique); |
2311 | STREAM_GETL(s, zpi.type); | |
2312 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2313 | ||
2314 | if (hdr->command == ZEBRA_IPSET_CREATE) | |
62f20a52 | 2315 | zebra_pbr_create_ipset(&zpi); |
bf094f69 | 2316 | else |
62f20a52 | 2317 | zebra_pbr_destroy_ipset(&zpi); |
bf094f69 QY |
2318 | } |
2319 | ||
2320 | stream_failure: | |
2321 | return; | |
2322 | } | |
2323 | ||
2324 | static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS) | |
2325 | { | |
2326 | struct zebra_pbr_ipset_entry zpi; | |
2327 | struct zebra_pbr_ipset ipset; | |
2328 | struct stream *s; | |
2329 | uint32_t total, i; | |
2330 | ||
2331 | s = msg; | |
2332 | STREAM_GETL(s, total); | |
2333 | ||
2334 | for (i = 0; i < total; i++) { | |
2335 | memset(&zpi, 0, sizeof(zpi)); | |
2336 | memset(&ipset, 0, sizeof(ipset)); | |
2337 | ||
2338 | zpi.sock = client->sock; | |
2339 | STREAM_GETL(s, zpi.unique); | |
2340 | STREAM_GET(&ipset.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2341 | STREAM_GETC(s, zpi.src.family); | |
2342 | STREAM_GETC(s, zpi.src.prefixlen); | |
2343 | STREAM_GET(&zpi.src.u.prefix, s, prefix_blen(&zpi.src)); | |
2344 | STREAM_GETC(s, zpi.dst.family); | |
2345 | STREAM_GETC(s, zpi.dst.prefixlen); | |
2346 | STREAM_GET(&zpi.dst.u.prefix, s, prefix_blen(&zpi.dst)); | |
2347 | ||
25d760c5 PG |
2348 | STREAM_GETW(s, zpi.src_port_min); |
2349 | STREAM_GETW(s, zpi.src_port_max); | |
2350 | STREAM_GETW(s, zpi.dst_port_min); | |
2351 | STREAM_GETW(s, zpi.dst_port_max); | |
2352 | STREAM_GETC(s, zpi.proto); | |
bf094f69 QY |
2353 | if (!is_default_prefix(&zpi.src)) |
2354 | zpi.filter_bm |= PBR_FILTER_SRC_IP; | |
2355 | ||
2356 | if (!is_default_prefix(&zpi.dst)) | |
2357 | zpi.filter_bm |= PBR_FILTER_DST_IP; | |
be729dd7 | 2358 | if (zpi.dst_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 | 2359 | zpi.filter_bm |= PBR_FILTER_DST_PORT; |
be729dd7 | 2360 | if (zpi.src_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 PG |
2361 | zpi.filter_bm |= PBR_FILTER_SRC_PORT; |
2362 | if (zpi.dst_port_max != 0) | |
2363 | zpi.filter_bm |= PBR_FILTER_DST_PORT_RANGE; | |
2364 | if (zpi.src_port_max != 0) | |
2365 | zpi.filter_bm |= PBR_FILTER_SRC_PORT_RANGE; | |
2366 | if (zpi.proto != 0) | |
2367 | zpi.filter_bm |= PBR_FILTER_PROTO; | |
bf094f69 QY |
2368 | |
2369 | /* calculate backpointer */ | |
62f20a52 DS |
2370 | zpi.backpointer = |
2371 | zebra_pbr_lookup_ipset_pername(ipset.ipset_name); | |
bf094f69 | 2372 | if (hdr->command == ZEBRA_IPSET_ENTRY_ADD) |
62f20a52 | 2373 | zebra_pbr_add_ipset_entry(&zpi); |
bf094f69 | 2374 | else |
62f20a52 | 2375 | zebra_pbr_del_ipset_entry(&zpi); |
bf094f69 QY |
2376 | } |
2377 | ||
2378 | stream_failure: | |
2379 | return; | |
2380 | } | |
2381 | ||
2382 | static inline void zread_iptable(ZAPI_HANDLER_ARGS) | |
2383 | { | |
2384 | struct zebra_pbr_iptable zpi; | |
2385 | struct stream *s; | |
2386 | ||
2387 | s = msg; | |
2388 | ||
2389 | memset(&zpi, 0, sizeof(zpi)); | |
2390 | ||
f80ec7e3 | 2391 | zpi.interface_name_list = list_new(); |
bf094f69 | 2392 | zpi.sock = client->sock; |
be2028d1 | 2393 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2394 | STREAM_GETL(s, zpi.unique); |
2395 | STREAM_GETL(s, zpi.type); | |
2396 | STREAM_GETL(s, zpi.filter_bm); | |
2397 | STREAM_GETL(s, zpi.action); | |
2398 | STREAM_GETL(s, zpi.fwmark); | |
2399 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
e7f7dad4 PG |
2400 | STREAM_GETW(s, zpi.pkt_len_min); |
2401 | STREAM_GETW(s, zpi.pkt_len_max); | |
dc993e76 PG |
2402 | STREAM_GETW(s, zpi.tcp_flags); |
2403 | STREAM_GETW(s, zpi.tcp_mask_flags); | |
4977bd6c | 2404 | STREAM_GETC(s, zpi.dscp_value); |
5ac5b7cc | 2405 | STREAM_GETC(s, zpi.fragment); |
f80ec7e3 PG |
2406 | STREAM_GETL(s, zpi.nb_interface); |
2407 | zebra_pbr_iptable_update_interfacelist(s, &zpi); | |
bf094f69 QY |
2408 | |
2409 | if (hdr->command == ZEBRA_IPTABLE_ADD) | |
62f20a52 | 2410 | zebra_pbr_add_iptable(&zpi); |
bf094f69 | 2411 | else |
62f20a52 | 2412 | zebra_pbr_del_iptable(&zpi); |
bf094f69 QY |
2413 | stream_failure: |
2414 | return; | |
2415 | } | |
2416 | ||
2417 | void (*zserv_handlers[])(ZAPI_HANDLER_ARGS) = { | |
2418 | [ZEBRA_ROUTER_ID_ADD] = zread_router_id_add, | |
2419 | [ZEBRA_ROUTER_ID_DELETE] = zread_router_id_delete, | |
2420 | [ZEBRA_INTERFACE_ADD] = zread_interface_add, | |
2421 | [ZEBRA_INTERFACE_DELETE] = zread_interface_delete, | |
2422 | [ZEBRA_ROUTE_ADD] = zread_route_add, | |
2423 | [ZEBRA_ROUTE_DELETE] = zread_route_del, | |
bf094f69 QY |
2424 | [ZEBRA_REDISTRIBUTE_ADD] = zebra_redistribute_add, |
2425 | [ZEBRA_REDISTRIBUTE_DELETE] = zebra_redistribute_delete, | |
2426 | [ZEBRA_REDISTRIBUTE_DEFAULT_ADD] = zebra_redistribute_default_add, | |
2427 | [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE] = zebra_redistribute_default_delete, | |
2428 | [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB] = zread_ipv4_nexthop_lookup_mrib, | |
2429 | [ZEBRA_HELLO] = zread_hello, | |
2430 | [ZEBRA_NEXTHOP_REGISTER] = zread_rnh_register, | |
2431 | [ZEBRA_NEXTHOP_UNREGISTER] = zread_rnh_unregister, | |
2432 | [ZEBRA_IMPORT_ROUTE_REGISTER] = zread_rnh_register, | |
2433 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = zread_rnh_unregister, | |
2434 | [ZEBRA_BFD_DEST_UPDATE] = zebra_ptm_bfd_dst_register, | |
2435 | [ZEBRA_BFD_DEST_REGISTER] = zebra_ptm_bfd_dst_register, | |
2436 | [ZEBRA_BFD_DEST_DEREGISTER] = zebra_ptm_bfd_dst_deregister, | |
d3af6147 RZ |
2437 | #if HAVE_BFDD > 0 |
2438 | [ZEBRA_BFD_DEST_REPLAY] = zebra_ptm_bfd_dst_replay, | |
2439 | #endif /* HAVE_BFDD */ | |
bf094f69 QY |
2440 | [ZEBRA_VRF_UNREGISTER] = zread_vrf_unregister, |
2441 | [ZEBRA_VRF_LABEL] = zread_vrf_label, | |
2442 | [ZEBRA_BFD_CLIENT_REGISTER] = zebra_ptm_bfd_client_register, | |
2443 | #if defined(HAVE_RTADV) | |
2444 | [ZEBRA_INTERFACE_ENABLE_RADV] = zebra_interface_radv_enable, | |
2445 | [ZEBRA_INTERFACE_DISABLE_RADV] = zebra_interface_radv_disable, | |
2446 | #else | |
2447 | [ZEBRA_INTERFACE_ENABLE_RADV] = NULL, | |
2448 | [ZEBRA_INTERFACE_DISABLE_RADV] = NULL, | |
2449 | #endif | |
2450 | [ZEBRA_MPLS_LABELS_ADD] = zread_mpls_labels, | |
2451 | [ZEBRA_MPLS_LABELS_DELETE] = zread_mpls_labels, | |
2452 | [ZEBRA_IPMR_ROUTE_STATS] = zebra_ipmr_route_stats, | |
2453 | [ZEBRA_LABEL_MANAGER_CONNECT] = zread_label_manager_request, | |
f533be73 | 2454 | [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC] = zread_label_manager_request, |
bf094f69 QY |
2455 | [ZEBRA_GET_LABEL_CHUNK] = zread_label_manager_request, |
2456 | [ZEBRA_RELEASE_LABEL_CHUNK] = zread_label_manager_request, | |
2457 | [ZEBRA_FEC_REGISTER] = zread_fec_register, | |
2458 | [ZEBRA_FEC_UNREGISTER] = zread_fec_unregister, | |
2459 | [ZEBRA_ADVERTISE_DEFAULT_GW] = zebra_vxlan_advertise_gw_macip, | |
2460 | [ZEBRA_ADVERTISE_SUBNET] = zebra_vxlan_advertise_subnet, | |
2461 | [ZEBRA_ADVERTISE_ALL_VNI] = zebra_vxlan_advertise_all_vni, | |
2462 | [ZEBRA_REMOTE_VTEP_ADD] = zebra_vxlan_remote_vtep_add, | |
2463 | [ZEBRA_REMOTE_VTEP_DEL] = zebra_vxlan_remote_vtep_del, | |
2464 | [ZEBRA_REMOTE_MACIP_ADD] = zebra_vxlan_remote_macip_add, | |
2465 | [ZEBRA_REMOTE_MACIP_DEL] = zebra_vxlan_remote_macip_del, | |
3950b52c | 2466 | [ZEBRA_DUPLICATE_ADDR_DETECTION] = zebra_vxlan_dup_addr_detection, |
bf094f69 QY |
2467 | [ZEBRA_INTERFACE_SET_MASTER] = zread_interface_set_master, |
2468 | [ZEBRA_PW_ADD] = zread_pseudowire, | |
2469 | [ZEBRA_PW_DELETE] = zread_pseudowire, | |
2470 | [ZEBRA_PW_SET] = zread_pseudowire, | |
2471 | [ZEBRA_PW_UNSET] = zread_pseudowire, | |
2472 | [ZEBRA_RULE_ADD] = zread_rule, | |
2473 | [ZEBRA_RULE_DELETE] = zread_rule, | |
2474 | [ZEBRA_TABLE_MANAGER_CONNECT] = zread_table_manager_request, | |
2475 | [ZEBRA_GET_TABLE_CHUNK] = zread_table_manager_request, | |
2476 | [ZEBRA_RELEASE_TABLE_CHUNK] = zread_table_manager_request, | |
2477 | [ZEBRA_IPSET_CREATE] = zread_ipset, | |
2478 | [ZEBRA_IPSET_DESTROY] = zread_ipset, | |
2479 | [ZEBRA_IPSET_ENTRY_ADD] = zread_ipset_entry, | |
2480 | [ZEBRA_IPSET_ENTRY_DELETE] = zread_ipset_entry, | |
2481 | [ZEBRA_IPTABLE_ADD] = zread_iptable, | |
2482 | [ZEBRA_IPTABLE_DELETE] = zread_iptable, | |
fbac9605 | 2483 | [ZEBRA_VXLAN_FLOOD_CONTROL] = zebra_vxlan_flood_control, |
bf094f69 QY |
2484 | }; |
2485 | ||
727c9b99 QY |
2486 | #if defined(HANDLE_ZAPI_FUZZING) |
2487 | extern struct zebra_privs_t zserv_privs; | |
2488 | ||
2489 | static void zserv_write_incoming(struct stream *orig, uint16_t command) | |
2490 | { | |
2491 | char fname[MAXPATHLEN]; | |
2492 | struct stream *copy; | |
2493 | int fd = -1; | |
2494 | ||
2495 | copy = stream_dup(orig); | |
2496 | stream_set_getp(copy, 0); | |
2497 | ||
727c9b99 | 2498 | snprintf(fname, MAXPATHLEN, "%s/%u", DAEMON_VTY_DIR, command); |
6bb30c2c DL |
2499 | |
2500 | frr_elevate_privs(&zserv_privs) { | |
2501 | fd = open(fname, O_CREAT | O_WRONLY | O_EXCL, 0644); | |
2502 | } | |
727c9b99 QY |
2503 | stream_flush(copy, fd); |
2504 | close(fd); | |
727c9b99 QY |
2505 | stream_free(copy); |
2506 | } | |
2507 | #endif | |
2508 | ||
904e0d88 | 2509 | void zserv_handle_commands(struct zserv *client, struct stream *msg) |
bf094f69 | 2510 | { |
904e0d88 QY |
2511 | struct zmsghdr hdr; |
2512 | struct zebra_vrf *zvrf; | |
2513 | ||
2514 | zapi_parse_header(msg, &hdr); | |
bf094f69 | 2515 | |
727c9b99 QY |
2516 | #if defined(HANDLE_ZAPI_FUZZING) |
2517 | zserv_write_incoming(msg, hdr.command); | |
2518 | #endif | |
2519 | ||
904e0d88 QY |
2520 | hdr.length -= ZEBRA_HEADER_SIZE; |
2521 | ||
2522 | /* lookup vrf */ | |
2523 | zvrf = zebra_vrf_lookup_by_id(hdr.vrf_id); | |
2524 | if (!zvrf) { | |
2525 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
9df414fe QY |
2526 | zlog_debug("ZAPI message specifies unknown VRF: %d", |
2527 | hdr.vrf_id); | |
904e0d88 QY |
2528 | return; |
2529 | } | |
2530 | ||
aa360de7 | 2531 | if (hdr.command >= array_size(zserv_handlers) |
904e0d88 QY |
2532 | || zserv_handlers[hdr.command] == NULL) |
2533 | zlog_info("Zebra received unknown command %d", hdr.command); | |
2534 | else | |
2535 | zserv_handlers[hdr.command](client, &hdr, msg, zvrf); | |
bf094f69 | 2536 | } |