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bf094f69 | 1 | /* |
d8647095 | 2 | * Zebra API message creation & consumption. |
bf094f69 QY |
3 | * Portions: |
4 | * Copyright (C) 1997-1999 Kunihiro Ishiguro | |
5 | * Copyright (C) 2015-2018 Cumulus Networks, Inc. | |
6 | * et al. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the Free | |
10 | * Software Foundation; either version 2 of the License, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
16 | * more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | #include <libgen.h> | |
25 | ||
26 | #include "lib/prefix.h" | |
27 | #include "lib/command.h" | |
28 | #include "lib/if.h" | |
29 | #include "lib/thread.h" | |
30 | #include "lib/stream.h" | |
31 | #include "lib/memory.h" | |
32 | #include "lib/table.h" | |
33 | #include "lib/network.h" | |
34 | #include "lib/sockunion.h" | |
35 | #include "lib/log.h" | |
36 | #include "lib/zclient.h" | |
37 | #include "lib/privs.h" | |
38 | #include "lib/network.h" | |
39 | #include "lib/buffer.h" | |
40 | #include "lib/nexthop.h" | |
41 | #include "lib/vrf.h" | |
42 | #include "lib/libfrr.h" | |
43 | #include "lib/sockopt.h" | |
44 | ||
45 | #include "zebra/rib.h" | |
46 | #include "zebra/zebra_memory.h" | |
47 | #include "zebra/zebra_ns.h" | |
48 | #include "zebra/zebra_vrf.h" | |
49 | #include "zebra/router-id.h" | |
50 | #include "zebra/redistribute.h" | |
51 | #include "zebra/debug.h" | |
52 | #include "zebra/zebra_rnh.h" | |
53 | #include "zebra/rt_netlink.h" | |
54 | #include "zebra/interface.h" | |
55 | #include "zebra/zebra_ptm.h" | |
56 | #include "zebra/rtadv.h" | |
57 | #include "zebra/zebra_mpls.h" | |
58 | #include "zebra/zebra_mroute.h" | |
59 | #include "zebra/label_manager.h" | |
60 | #include "zebra/zebra_vxlan.h" | |
61 | #include "zebra/rt.h" | |
62 | #include "zebra/zebra_pbr.h" | |
63 | #include "zebra/table_manager.h" | |
64 | #include "zebra/zapi_msg.h" | |
364fed6b | 65 | #include "zebra/zebra_errors.h" |
02c0866d | 66 | #include "zebra/zebra_mlag.h" |
bf094f69 QY |
67 | |
68 | /* Encoding helpers -------------------------------------------------------- */ | |
69 | ||
70 | static void zserv_encode_interface(struct stream *s, struct interface *ifp) | |
71 | { | |
72 | /* Interface information. */ | |
73 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
74 | stream_putl(s, ifp->ifindex); | |
75 | stream_putc(s, ifp->status); | |
76 | stream_putq(s, ifp->flags); | |
77 | stream_putc(s, ifp->ptm_enable); | |
78 | stream_putc(s, ifp->ptm_status); | |
79 | stream_putl(s, ifp->metric); | |
80 | stream_putl(s, ifp->speed); | |
81 | stream_putl(s, ifp->mtu); | |
82 | stream_putl(s, ifp->mtu6); | |
83 | stream_putl(s, ifp->bandwidth); | |
84 | stream_putl(s, ifp->ll_type); | |
85 | stream_putl(s, ifp->hw_addr_len); | |
86 | if (ifp->hw_addr_len) | |
87 | stream_put(s, ifp->hw_addr, ifp->hw_addr_len); | |
88 | ||
89 | /* Then, Traffic Engineering parameters if any */ | |
90 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { | |
91 | stream_putc(s, 1); | |
92 | zebra_interface_link_params_write(s, ifp); | |
93 | } else | |
94 | stream_putc(s, 0); | |
95 | ||
96 | /* Write packet size. */ | |
97 | stream_putw_at(s, 0, stream_get_endp(s)); | |
98 | } | |
99 | ||
100 | static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) | |
101 | { | |
102 | struct vrf_data data; | |
103 | const char *netns_name = zvrf_ns_name(zvrf); | |
104 | ||
105 | data.l.table_id = zvrf->table_id; | |
106 | ||
107 | if (netns_name) | |
108 | strlcpy(data.l.netns_name, basename((char *)netns_name), | |
109 | NS_NAMSIZ); | |
110 | else | |
111 | memset(data.l.netns_name, 0, NS_NAMSIZ); | |
112 | /* Pass the tableid and the netns NAME */ | |
113 | stream_put(s, &data, sizeof(struct vrf_data)); | |
114 | /* Interface information. */ | |
115 | stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); | |
116 | /* Write packet size. */ | |
117 | stream_putw_at(s, 0, stream_get_endp(s)); | |
118 | } | |
119 | ||
120 | static int zserv_encode_nexthop(struct stream *s, struct nexthop *nexthop) | |
121 | { | |
a756969d | 122 | stream_putl(s, nexthop->vrf_id); |
bf094f69 QY |
123 | stream_putc(s, nexthop->type); |
124 | switch (nexthop->type) { | |
125 | case NEXTHOP_TYPE_IPV4: | |
126 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
127 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
128 | stream_putl(s, nexthop->ifindex); | |
129 | break; | |
130 | case NEXTHOP_TYPE_IPV6: | |
131 | stream_put(s, &nexthop->gate.ipv6, 16); | |
132 | break; | |
133 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
134 | stream_put(s, &nexthop->gate.ipv6, 16); | |
135 | stream_putl(s, nexthop->ifindex); | |
136 | break; | |
137 | case NEXTHOP_TYPE_IFINDEX: | |
138 | stream_putl(s, nexthop->ifindex); | |
139 | break; | |
140 | default: | |
141 | /* do nothing */ | |
142 | break; | |
143 | } | |
144 | return 1; | |
145 | } | |
146 | ||
147 | /* Send handlers ----------------------------------------------------------- */ | |
148 | ||
149 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ | |
150 | /* | |
151 | * This function is called in the following situations: | |
152 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
153 | * from the client. | |
154 | * - at startup, when zebra figures out the available interfaces | |
155 | * - when an interface is added (where support for | |
156 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
157 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
158 | * received) | |
159 | */ | |
160 | int zsend_interface_add(struct zserv *client, struct interface *ifp) | |
161 | { | |
162 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
163 | ||
164 | zclient_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); | |
165 | zserv_encode_interface(s, ifp); | |
166 | ||
167 | client->ifadd_cnt++; | |
21ccc0cf | 168 | return zserv_send_message(client, s); |
bf094f69 QY |
169 | } |
170 | ||
171 | /* Interface deletion from zebra daemon. */ | |
172 | int zsend_interface_delete(struct zserv *client, struct interface *ifp) | |
173 | { | |
174 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
175 | ||
176 | zclient_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); | |
177 | zserv_encode_interface(s, ifp); | |
178 | ||
179 | client->ifdel_cnt++; | |
21ccc0cf | 180 | return zserv_send_message(client, s); |
bf094f69 QY |
181 | } |
182 | ||
183 | int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) | |
184 | { | |
185 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
186 | ||
187 | zclient_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); | |
188 | zserv_encode_vrf(s, zvrf); | |
189 | ||
190 | client->vrfadd_cnt++; | |
21ccc0cf | 191 | return zserv_send_message(client, s); |
bf094f69 QY |
192 | } |
193 | ||
194 | /* VRF deletion from zebra daemon. */ | |
195 | int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) | |
196 | ||
197 | { | |
198 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
199 | ||
200 | zclient_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); | |
201 | zserv_encode_vrf(s, zvrf); | |
202 | ||
203 | client->vrfdel_cnt++; | |
21ccc0cf | 204 | return zserv_send_message(client, s); |
bf094f69 QY |
205 | } |
206 | ||
207 | int zsend_interface_link_params(struct zserv *client, struct interface *ifp) | |
208 | { | |
209 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
210 | ||
211 | /* Check this client need interface information. */ | |
f20b478e | 212 | if (!vrf_bitmap_check(client->ifinfo, ifp->vrf_id)) { |
bf094f69 QY |
213 | stream_free(s); |
214 | return 0; | |
215 | } | |
216 | ||
217 | if (!ifp->link_params) { | |
218 | stream_free(s); | |
219 | return 0; | |
220 | } | |
221 | ||
222 | zclient_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); | |
223 | ||
224 | /* Add Interface Index */ | |
225 | stream_putl(s, ifp->ifindex); | |
226 | ||
227 | /* Then TE Link Parameters */ | |
228 | if (zebra_interface_link_params_write(s, ifp) == 0) { | |
229 | stream_free(s); | |
230 | return 0; | |
231 | } | |
232 | ||
233 | /* Write packet size. */ | |
234 | stream_putw_at(s, 0, stream_get_endp(s)); | |
235 | ||
21ccc0cf | 236 | return zserv_send_message(client, s); |
bf094f69 QY |
237 | } |
238 | ||
239 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or | |
240 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
241 | * | |
242 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
243 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
244 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
245 | * sent from zebra to the client | |
246 | * - redistribute new address info to all clients in the following situations | |
247 | * - at startup, when zebra figures out the available interfaces | |
248 | * - when an interface is added (where support for | |
249 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
250 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
251 | * received) | |
b1bd1015 | 252 | * - for the vty commands "ip address A.B.C.D/M [<label LINE>]" |
bf094f69 QY |
253 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" |
254 | * - when an RTM_NEWADDR message is received from the kernel, | |
255 | * | |
256 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
257 | * | |
258 | * zsend_interface_address(DELETE) | |
259 | * ^ | |
260 | * | | |
261 | * zebra_interface_address_delete_update | |
262 | * ^ ^ ^ | |
263 | * | | if_delete_update | |
264 | * | | | |
265 | * ip_address_uninstall connected_delete_ipv4 | |
266 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
267 | * ^ ^ | |
268 | * | | | |
269 | * | RTM_NEWADDR on routing/netlink socket | |
270 | * | | |
271 | * vty commands: | |
272 | * "no ip address A.B.C.D/M [label LINE]" | |
b1bd1015 | 273 | * "no ip address A.B.C.D/M" |
bf094f69 QY |
274 | * ["no ipv6 address X:X::X:X/M"] |
275 | * | |
276 | */ | |
277 | int zsend_interface_address(int cmd, struct zserv *client, | |
278 | struct interface *ifp, struct connected *ifc) | |
279 | { | |
280 | int blen; | |
281 | struct prefix *p; | |
282 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
283 | ||
284 | zclient_create_header(s, cmd, ifp->vrf_id); | |
285 | stream_putl(s, ifp->ifindex); | |
286 | ||
287 | /* Interface address flag. */ | |
288 | stream_putc(s, ifc->flags); | |
289 | ||
290 | /* Prefix information. */ | |
291 | p = ifc->address; | |
292 | stream_putc(s, p->family); | |
293 | blen = prefix_blen(p); | |
294 | stream_put(s, &p->u.prefix, blen); | |
295 | ||
296 | /* | |
297 | * XXX gnu version does not send prefixlen for | |
298 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
299 | * but zebra_interface_address_delete_read() in the gnu version | |
300 | * expects to find it | |
301 | */ | |
302 | stream_putc(s, p->prefixlen); | |
303 | ||
304 | /* Destination. */ | |
305 | p = ifc->destination; | |
306 | if (p) | |
307 | stream_put(s, &p->u.prefix, blen); | |
308 | else | |
309 | stream_put(s, NULL, blen); | |
310 | ||
311 | /* Write packet size. */ | |
312 | stream_putw_at(s, 0, stream_get_endp(s)); | |
313 | ||
314 | client->connected_rt_add_cnt++; | |
21ccc0cf | 315 | return zserv_send_message(client, s); |
bf094f69 QY |
316 | } |
317 | ||
318 | static int zsend_interface_nbr_address(int cmd, struct zserv *client, | |
319 | struct interface *ifp, | |
320 | struct nbr_connected *ifc) | |
321 | { | |
322 | int blen; | |
323 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
324 | struct prefix *p; | |
325 | ||
326 | zclient_create_header(s, cmd, ifp->vrf_id); | |
327 | stream_putl(s, ifp->ifindex); | |
328 | ||
329 | /* Prefix information. */ | |
330 | p = ifc->address; | |
331 | stream_putc(s, p->family); | |
332 | blen = prefix_blen(p); | |
333 | stream_put(s, &p->u.prefix, blen); | |
334 | ||
335 | /* | |
336 | * XXX gnu version does not send prefixlen for | |
337 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
338 | * but zebra_interface_address_delete_read() in the gnu version | |
339 | * expects to find it | |
340 | */ | |
341 | stream_putc(s, p->prefixlen); | |
342 | ||
343 | /* Write packet size. */ | |
344 | stream_putw_at(s, 0, stream_get_endp(s)); | |
345 | ||
21ccc0cf | 346 | return zserv_send_message(client, s); |
bf094f69 QY |
347 | } |
348 | ||
349 | /* Interface address addition. */ | |
350 | static void zebra_interface_nbr_address_add_update(struct interface *ifp, | |
351 | struct nbr_connected *ifc) | |
352 | { | |
353 | struct listnode *node, *nnode; | |
354 | struct zserv *client; | |
355 | struct prefix *p; | |
356 | ||
357 | if (IS_ZEBRA_DEBUG_EVENT) { | |
358 | char buf[INET6_ADDRSTRLEN]; | |
359 | ||
360 | p = ifc->address; | |
361 | zlog_debug( | |
362 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
363 | inet_ntop(p->family, &p->u.prefix, buf, | |
364 | INET6_ADDRSTRLEN), | |
365 | p->prefixlen, ifc->ifp->name); | |
366 | } | |
367 | ||
368 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) | |
369 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
370 | client, ifp, ifc); | |
371 | } | |
372 | ||
373 | /* Interface address deletion. */ | |
374 | static void zebra_interface_nbr_address_delete_update(struct interface *ifp, | |
375 | struct nbr_connected *ifc) | |
376 | { | |
377 | struct listnode *node, *nnode; | |
378 | struct zserv *client; | |
379 | struct prefix *p; | |
380 | ||
381 | if (IS_ZEBRA_DEBUG_EVENT) { | |
382 | char buf[INET6_ADDRSTRLEN]; | |
383 | ||
384 | p = ifc->address; | |
385 | zlog_debug( | |
386 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
387 | inet_ntop(p->family, &p->u.prefix, buf, | |
388 | INET6_ADDRSTRLEN), | |
389 | p->prefixlen, ifc->ifp->name); | |
390 | } | |
391 | ||
392 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) | |
393 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, | |
394 | client, ifp, ifc); | |
395 | } | |
396 | ||
397 | /* Send addresses on interface to client */ | |
398 | int zsend_interface_addresses(struct zserv *client, struct interface *ifp) | |
399 | { | |
400 | struct listnode *cnode, *cnnode; | |
401 | struct connected *c; | |
402 | struct nbr_connected *nc; | |
403 | ||
404 | /* Send interface addresses. */ | |
405 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
406 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
407 | continue; | |
408 | ||
409 | if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
410 | ifp, c) | |
411 | < 0) | |
412 | return -1; | |
413 | } | |
414 | ||
415 | /* Send interface neighbors. */ | |
416 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { | |
417 | if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
418 | client, ifp, nc) | |
419 | < 0) | |
420 | return -1; | |
421 | } | |
422 | ||
423 | return 0; | |
424 | } | |
425 | ||
426 | /* Notify client about interface moving from one VRF to another. | |
427 | * Whether client is interested in old and new VRF is checked by caller. | |
428 | */ | |
429 | int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, | |
430 | vrf_id_t vrf_id) | |
431 | { | |
432 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
433 | ||
434 | zclient_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); | |
435 | ||
91d227b7 RW |
436 | /* Fill in the name of the interface and its new VRF (id) */ |
437 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
bf094f69 QY |
438 | stream_putl(s, vrf_id); |
439 | ||
440 | /* Write packet size. */ | |
441 | stream_putw_at(s, 0, stream_get_endp(s)); | |
442 | ||
443 | client->if_vrfchg_cnt++; | |
21ccc0cf | 444 | return zserv_send_message(client, s); |
bf094f69 QY |
445 | } |
446 | ||
447 | /* Add new nbr connected IPv6 address */ | |
448 | void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) | |
449 | { | |
450 | struct nbr_connected *ifc; | |
451 | struct prefix p; | |
452 | ||
453 | p.family = AF_INET6; | |
a85297a7 | 454 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
455 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
456 | ||
8b1766b1 QY |
457 | ifc = listnode_head(ifp->nbr_connected); |
458 | if (!ifc) { | |
bf094f69 QY |
459 | /* new addition */ |
460 | ifc = nbr_connected_new(); | |
461 | ifc->address = prefix_new(); | |
462 | ifc->ifp = ifp; | |
463 | listnode_add(ifp->nbr_connected, ifc); | |
464 | } | |
465 | ||
466 | prefix_copy(ifc->address, &p); | |
467 | ||
468 | zebra_interface_nbr_address_add_update(ifp, ifc); | |
469 | ||
470 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); | |
471 | } | |
472 | ||
473 | void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) | |
474 | { | |
475 | struct nbr_connected *ifc; | |
476 | struct prefix p; | |
477 | ||
478 | p.family = AF_INET6; | |
a85297a7 | 479 | IPV6_ADDR_COPY(&p.u.prefix6, address); |
bf094f69 QY |
480 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
481 | ||
482 | ifc = nbr_connected_check(ifp, &p); | |
483 | if (!ifc) | |
484 | return; | |
485 | ||
486 | listnode_delete(ifp->nbr_connected, ifc); | |
487 | ||
488 | zebra_interface_nbr_address_delete_update(ifp, ifc); | |
489 | ||
490 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); | |
491 | ||
492 | nbr_connected_free(ifc); | |
493 | } | |
494 | ||
495 | /* | |
496 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
497 | * ZEBRA_INTERFACE_DOWN. | |
498 | * | |
499 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
500 | * the clients in one of 2 situations: | |
501 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
502 | * - a vty command modifying the bandwidth of an interface is received. | |
503 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
504 | */ | |
505 | int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) | |
506 | { | |
507 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
508 | ||
509 | zclient_create_header(s, cmd, ifp->vrf_id); | |
510 | zserv_encode_interface(s, ifp); | |
511 | ||
512 | if (cmd == ZEBRA_INTERFACE_UP) | |
513 | client->ifup_cnt++; | |
514 | else | |
515 | client->ifdown_cnt++; | |
516 | ||
21ccc0cf | 517 | return zserv_send_message(client, s); |
bf094f69 QY |
518 | } |
519 | ||
86391e56 MS |
520 | int zsend_redistribute_route(int cmd, struct zserv *client, |
521 | const struct prefix *p, | |
522 | const struct prefix *src_p, struct route_entry *re) | |
bf094f69 QY |
523 | { |
524 | struct zapi_route api; | |
525 | struct zapi_nexthop *api_nh; | |
526 | struct nexthop *nexthop; | |
527 | int count = 0; | |
34fa0870 | 528 | afi_t afi; |
bf094f69 QY |
529 | |
530 | memset(&api, 0, sizeof(api)); | |
531 | api.vrf_id = re->vrf_id; | |
532 | api.type = re->type; | |
e4081c0e | 533 | api.safi = SAFI_UNICAST; |
bf094f69 QY |
534 | api.instance = re->instance; |
535 | api.flags = re->flags; | |
536 | ||
34fa0870 DS |
537 | afi = family2afi(p->family); |
538 | switch (afi) { | |
539 | case AFI_IP: | |
540 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
541 | client->redist_v4_add_cnt++; | |
542 | else | |
543 | client->redist_v4_del_cnt++; | |
544 | break; | |
545 | case AFI_IP6: | |
546 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) | |
547 | client->redist_v6_add_cnt++; | |
548 | else | |
549 | client->redist_v6_del_cnt++; | |
550 | break; | |
551 | default: | |
552 | break; | |
553 | } | |
554 | ||
bf094f69 QY |
555 | /* Prefix. */ |
556 | api.prefix = *p; | |
557 | if (src_p) { | |
558 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
559 | memcpy(&api.src_prefix, src_p, sizeof(api.src_prefix)); | |
560 | } | |
561 | ||
562 | /* Nexthops. */ | |
563 | if (re->nexthop_active_num) { | |
564 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
565 | api.nexthop_num = re->nexthop_active_num; | |
566 | } | |
567 | for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) { | |
568 | if (!CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
569 | continue; | |
570 | ||
571 | api_nh = &api.nexthops[count]; | |
572 | api_nh->vrf_id = nexthop->vrf_id; | |
573 | api_nh->type = nexthop->type; | |
574 | switch (nexthop->type) { | |
575 | case NEXTHOP_TYPE_BLACKHOLE: | |
576 | api_nh->bh_type = nexthop->bh_type; | |
577 | break; | |
578 | case NEXTHOP_TYPE_IPV4: | |
579 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
580 | break; | |
581 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
582 | api_nh->gate.ipv4 = nexthop->gate.ipv4; | |
583 | api_nh->ifindex = nexthop->ifindex; | |
584 | break; | |
585 | case NEXTHOP_TYPE_IFINDEX: | |
586 | api_nh->ifindex = nexthop->ifindex; | |
587 | break; | |
588 | case NEXTHOP_TYPE_IPV6: | |
589 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
590 | break; | |
591 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
592 | api_nh->gate.ipv6 = nexthop->gate.ipv6; | |
593 | api_nh->ifindex = nexthop->ifindex; | |
594 | } | |
595 | count++; | |
596 | } | |
597 | ||
598 | /* Attributes. */ | |
599 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
600 | api.distance = re->distance; | |
601 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); | |
602 | api.metric = re->metric; | |
603 | if (re->tag) { | |
604 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
605 | api.tag = re->tag; | |
606 | } | |
607 | SET_FLAG(api.message, ZAPI_MESSAGE_MTU); | |
608 | api.mtu = re->mtu; | |
609 | ||
610 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
611 | ||
612 | /* Encode route and send. */ | |
613 | if (zapi_route_encode(cmd, s, &api) < 0) { | |
614 | stream_free(s); | |
615 | return -1; | |
616 | } | |
617 | ||
618 | if (IS_ZEBRA_DEBUG_SEND) { | |
619 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 620 | |
bf094f69 QY |
621 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
622 | ||
623 | zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %s", | |
624 | __func__, zserv_command_string(cmd), | |
625 | zebra_route_string(client->proto), | |
626 | zebra_route_string(api.type), api.vrf_id, | |
627 | buf_prefix); | |
628 | } | |
21ccc0cf | 629 | return zserv_send_message(client, s); |
bf094f69 QY |
630 | } |
631 | ||
632 | /* | |
633 | * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if | |
634 | * nexthop is not found on mrib. Returns both route metric and protocol | |
635 | * distance. | |
636 | */ | |
637 | static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, | |
638 | struct in_addr addr, | |
639 | struct route_entry *re, | |
640 | struct zebra_vrf *zvrf) | |
641 | { | |
642 | struct stream *s; | |
643 | unsigned long nump; | |
644 | uint8_t num; | |
645 | struct nexthop *nexthop; | |
646 | ||
647 | /* Get output stream. */ | |
648 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
649 | stream_reset(s); | |
650 | ||
651 | /* Fill in result. */ | |
652 | zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); | |
653 | stream_put_in_addr(s, &addr); | |
654 | ||
655 | if (re) { | |
656 | stream_putc(s, re->distance); | |
657 | stream_putl(s, re->metric); | |
658 | num = 0; | |
8b1766b1 QY |
659 | /* remember position for nexthop_num */ |
660 | nump = stream_get_endp(s); | |
661 | /* reserve room for nexthop_num */ | |
662 | stream_putc(s, 0); | |
663 | /* | |
664 | * Only non-recursive routes are elegible to resolve the | |
665 | * nexthop we are looking up. Therefore, we will just iterate | |
666 | * over the top chain of nexthops. | |
667 | */ | |
bf094f69 QY |
668 | for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) |
669 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
670 | num += zserv_encode_nexthop(s, nexthop); | |
671 | ||
8b1766b1 QY |
672 | /* store nexthop_num */ |
673 | stream_putc_at(s, nump, num); | |
bf094f69 QY |
674 | } else { |
675 | stream_putc(s, 0); /* distance */ | |
676 | stream_putl(s, 0); /* metric */ | |
677 | stream_putc(s, 0); /* nexthop_num */ | |
678 | } | |
679 | ||
680 | stream_putw_at(s, 0, stream_get_endp(s)); | |
681 | ||
21ccc0cf | 682 | return zserv_send_message(client, s); |
bf094f69 QY |
683 | } |
684 | ||
86391e56 MS |
685 | /* |
686 | * Common utility send route notification, called from a path using a | |
687 | * route_entry and from a path using a dataplane context. | |
688 | */ | |
689 | static int route_notify_internal(const struct prefix *p, int type, | |
690 | uint16_t instance, vrf_id_t vrf_id, | |
691 | uint32_t table_id, | |
692 | enum zapi_route_notify_owner note) | |
bf094f69 QY |
693 | { |
694 | struct zserv *client; | |
695 | struct stream *s; | |
696 | uint8_t blen; | |
697 | ||
86391e56 | 698 | client = zserv_find_client(type, instance); |
bf094f69 QY |
699 | if (!client || !client->notify_owner) { |
700 | if (IS_ZEBRA_DEBUG_PACKET) { | |
701 | char buff[PREFIX_STRLEN]; | |
702 | ||
703 | zlog_debug( | |
704 | "Not Notifying Owner: %u about prefix %s(%u) %d vrf: %u", | |
86391e56 MS |
705 | type, prefix2str(p, buff, sizeof(buff)), |
706 | table_id, note, vrf_id); | |
bf094f69 QY |
707 | } |
708 | return 0; | |
709 | } | |
710 | ||
711 | if (IS_ZEBRA_DEBUG_PACKET) { | |
712 | char buff[PREFIX_STRLEN]; | |
713 | ||
714 | zlog_debug("Notifying Owner: %u about prefix %s(%u) %d vrf: %u", | |
86391e56 MS |
715 | type, prefix2str(p, buff, sizeof(buff)), |
716 | table_id, note, vrf_id); | |
bf094f69 QY |
717 | } |
718 | ||
719 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
720 | stream_reset(s); | |
721 | ||
86391e56 | 722 | zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, vrf_id); |
bf094f69 QY |
723 | |
724 | stream_put(s, ¬e, sizeof(note)); | |
725 | ||
726 | stream_putc(s, p->family); | |
727 | ||
728 | blen = prefix_blen(p); | |
729 | stream_putc(s, p->prefixlen); | |
730 | stream_put(s, &p->u.prefix, blen); | |
731 | ||
86391e56 | 732 | stream_putl(s, table_id); |
bf094f69 QY |
733 | |
734 | stream_putw_at(s, 0, stream_get_endp(s)); | |
735 | ||
21ccc0cf | 736 | return zserv_send_message(client, s); |
bf094f69 QY |
737 | } |
738 | ||
86391e56 MS |
739 | int zsend_route_notify_owner(struct route_entry *re, const struct prefix *p, |
740 | enum zapi_route_notify_owner note) | |
741 | { | |
742 | return (route_notify_internal(p, re->type, re->instance, re->vrf_id, | |
743 | re->table, note)); | |
744 | } | |
745 | ||
7cdb1a84 MS |
746 | /* |
747 | * Route-owner notification using info from dataplane update context. | |
748 | */ | |
25779064 | 749 | int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx *ctx, |
7cdb1a84 MS |
750 | enum zapi_route_notify_owner note) |
751 | { | |
752 | return (route_notify_internal(dplane_ctx_get_dest(ctx), | |
753 | dplane_ctx_get_type(ctx), | |
754 | dplane_ctx_get_instance(ctx), | |
755 | dplane_ctx_get_vrf(ctx), | |
756 | dplane_ctx_get_table(ctx), | |
757 | note)); | |
86391e56 MS |
758 | } |
759 | ||
bf094f69 QY |
760 | void zsend_rule_notify_owner(struct zebra_pbr_rule *rule, |
761 | enum zapi_rule_notify_owner note) | |
762 | { | |
763 | struct listnode *node; | |
764 | struct zserv *client; | |
765 | struct stream *s; | |
766 | ||
767 | if (IS_ZEBRA_DEBUG_PACKET) | |
768 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
769 | rule->rule.unique); | |
770 | ||
771 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { | |
772 | if (rule->sock == client->sock) | |
773 | break; | |
774 | } | |
775 | ||
776 | if (!client) | |
777 | return; | |
778 | ||
779 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
780 | ||
781 | zclient_create_header(s, ZEBRA_RULE_NOTIFY_OWNER, VRF_DEFAULT); | |
782 | stream_put(s, ¬e, sizeof(note)); | |
783 | stream_putl(s, rule->rule.seq); | |
784 | stream_putl(s, rule->rule.priority); | |
785 | stream_putl(s, rule->rule.unique); | |
786 | if (rule->ifp) | |
787 | stream_putl(s, rule->ifp->ifindex); | |
788 | else | |
789 | stream_putl(s, 0); | |
790 | ||
791 | stream_putw_at(s, 0, stream_get_endp(s)); | |
792 | ||
21ccc0cf | 793 | zserv_send_message(client, s); |
bf094f69 QY |
794 | } |
795 | ||
796 | void zsend_ipset_notify_owner(struct zebra_pbr_ipset *ipset, | |
797 | enum zapi_ipset_notify_owner note) | |
798 | { | |
799 | struct listnode *node; | |
800 | struct zserv *client; | |
801 | struct stream *s; | |
802 | ||
803 | if (IS_ZEBRA_DEBUG_PACKET) | |
804 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
805 | ipset->unique); | |
806 | ||
807 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { | |
808 | if (ipset->sock == client->sock) | |
809 | break; | |
810 | } | |
811 | ||
812 | if (!client) | |
813 | return; | |
814 | ||
815 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
816 | ||
817 | zclient_create_header(s, ZEBRA_IPSET_NOTIFY_OWNER, VRF_DEFAULT); | |
818 | stream_put(s, ¬e, sizeof(note)); | |
819 | stream_putl(s, ipset->unique); | |
820 | stream_put(s, ipset->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
821 | stream_putw_at(s, 0, stream_get_endp(s)); | |
822 | ||
21ccc0cf | 823 | zserv_send_message(client, s); |
bf094f69 QY |
824 | } |
825 | ||
826 | void zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry *ipset, | |
827 | enum zapi_ipset_entry_notify_owner note) | |
828 | { | |
829 | struct listnode *node; | |
830 | struct zserv *client; | |
831 | struct stream *s; | |
832 | ||
833 | if (IS_ZEBRA_DEBUG_PACKET) | |
834 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
835 | ipset->unique); | |
836 | ||
837 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { | |
838 | if (ipset->sock == client->sock) | |
839 | break; | |
840 | } | |
841 | ||
842 | if (!client) | |
843 | return; | |
844 | ||
845 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
846 | ||
847 | zclient_create_header(s, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER, VRF_DEFAULT); | |
848 | stream_put(s, ¬e, sizeof(note)); | |
849 | stream_putl(s, ipset->unique); | |
850 | stream_put(s, ipset->backpointer->ipset_name, ZEBRA_IPSET_NAME_SIZE); | |
851 | stream_putw_at(s, 0, stream_get_endp(s)); | |
852 | ||
21ccc0cf | 853 | zserv_send_message(client, s); |
bf094f69 QY |
854 | } |
855 | ||
856 | void zsend_iptable_notify_owner(struct zebra_pbr_iptable *iptable, | |
857 | enum zapi_iptable_notify_owner note) | |
858 | { | |
859 | struct listnode *node; | |
860 | struct zserv *client; | |
861 | struct stream *s; | |
862 | ||
863 | if (IS_ZEBRA_DEBUG_PACKET) | |
864 | zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, | |
865 | iptable->unique); | |
866 | ||
867 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { | |
868 | if (iptable->sock == client->sock) | |
869 | break; | |
870 | } | |
871 | ||
872 | if (!client) | |
873 | return; | |
874 | ||
875 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
876 | ||
877 | zclient_create_header(s, ZEBRA_IPTABLE_NOTIFY_OWNER, VRF_DEFAULT); | |
878 | stream_put(s, ¬e, sizeof(note)); | |
879 | stream_putl(s, iptable->unique); | |
880 | stream_putw_at(s, 0, stream_get_endp(s)); | |
881 | ||
21ccc0cf | 882 | zserv_send_message(client, s); |
bf094f69 QY |
883 | } |
884 | ||
885 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ | |
886 | int zsend_router_id_update(struct zserv *client, struct prefix *p, | |
887 | vrf_id_t vrf_id) | |
888 | { | |
889 | int blen; | |
890 | ||
891 | /* Check this client need interface information. */ | |
892 | if (!vrf_bitmap_check(client->ridinfo, vrf_id)) | |
893 | return 0; | |
894 | ||
895 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
896 | ||
897 | /* Message type. */ | |
898 | zclient_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); | |
899 | ||
900 | /* Prefix information. */ | |
901 | stream_putc(s, p->family); | |
902 | blen = prefix_blen(p); | |
903 | stream_put(s, &p->u.prefix, blen); | |
904 | stream_putc(s, p->prefixlen); | |
905 | ||
906 | /* Write packet size. */ | |
907 | stream_putw_at(s, 0, stream_get_endp(s)); | |
908 | ||
21ccc0cf | 909 | return zserv_send_message(client, s); |
bf094f69 QY |
910 | } |
911 | ||
912 | /* | |
913 | * Function used by Zebra to send a PW status update to LDP daemon | |
914 | */ | |
915 | int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) | |
916 | { | |
917 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
918 | ||
919 | zclient_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); | |
920 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
921 | stream_putl(s, pw->ifindex); | |
922 | stream_putl(s, pw->status); | |
923 | ||
924 | /* Put length at the first point of the stream. */ | |
925 | stream_putw_at(s, 0, stream_get_endp(s)); | |
926 | ||
21ccc0cf | 927 | return zserv_send_message(client, s); |
bf094f69 QY |
928 | } |
929 | ||
930 | /* Send response to a get label chunk request to client */ | |
931 | static int zsend_assign_label_chunk_response(struct zserv *client, | |
932 | vrf_id_t vrf_id, | |
933 | struct label_manager_chunk *lmc) | |
934 | { | |
935 | int ret; | |
936 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
937 | ||
938 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); | |
939 | ||
940 | if (lmc) { | |
5dffb0e9 FR |
941 | /* proto */ |
942 | stream_putc(s, lmc->proto); | |
943 | /* instance */ | |
944 | stream_putw(s, lmc->instance); | |
bf094f69 QY |
945 | /* keep */ |
946 | stream_putc(s, lmc->keep); | |
947 | /* start and end labels */ | |
948 | stream_putl(s, lmc->start); | |
949 | stream_putl(s, lmc->end); | |
950 | } | |
951 | ||
952 | /* Write packet size. */ | |
953 | stream_putw_at(s, 0, stream_get_endp(s)); | |
954 | ||
955 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
956 | stream_free(s); | |
957 | return ret; | |
958 | } | |
959 | ||
960 | /* Send response to a label manager connect request to client */ | |
961 | static int zsend_label_manager_connect_response(struct zserv *client, | |
962 | vrf_id_t vrf_id, | |
963 | unsigned short result) | |
964 | { | |
965 | int ret; | |
966 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
967 | ||
968 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); | |
969 | ||
5dffb0e9 FR |
970 | /* proto */ |
971 | stream_putc(s, client->proto); | |
972 | ||
973 | /* instance */ | |
974 | stream_putw(s, client->instance); | |
975 | ||
bf094f69 QY |
976 | /* result */ |
977 | stream_putc(s, result); | |
978 | ||
979 | /* Write packet size. */ | |
980 | stream_putw_at(s, 0, stream_get_endp(s)); | |
981 | ||
982 | ret = writen(client->sock, s->data, stream_get_endp(s)); | |
983 | stream_free(s); | |
984 | ||
985 | return ret; | |
986 | } | |
987 | ||
988 | /* Send response to a get table chunk request to client */ | |
989 | static int zsend_assign_table_chunk_response(struct zserv *client, | |
990 | vrf_id_t vrf_id, | |
991 | struct table_manager_chunk *tmc) | |
992 | { | |
993 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
994 | ||
995 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, vrf_id); | |
996 | ||
997 | if (tmc) { | |
998 | /* start and end labels */ | |
999 | stream_putl(s, tmc->start); | |
1000 | stream_putl(s, tmc->end); | |
1001 | } | |
1002 | ||
1003 | /* Write packet size. */ | |
1004 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1005 | ||
21ccc0cf | 1006 | return zserv_send_message(client, s); |
bf094f69 QY |
1007 | } |
1008 | ||
1009 | static int zsend_table_manager_connect_response(struct zserv *client, | |
1010 | vrf_id_t vrf_id, | |
1011 | uint16_t result) | |
1012 | { | |
1013 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1014 | ||
1015 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, vrf_id); | |
1016 | ||
1017 | /* result */ | |
1018 | stream_putc(s, result); | |
1019 | ||
1020 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1021 | ||
21ccc0cf | 1022 | return zserv_send_message(client, s); |
bf094f69 QY |
1023 | } |
1024 | ||
1025 | /* Inbound message handling ------------------------------------------------ */ | |
1026 | ||
1027 | int cmd2type[] = { | |
1028 | [ZEBRA_NEXTHOP_REGISTER] = RNH_NEXTHOP_TYPE, | |
1029 | [ZEBRA_NEXTHOP_UNREGISTER] = RNH_NEXTHOP_TYPE, | |
1030 | [ZEBRA_IMPORT_ROUTE_REGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1031 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = RNH_IMPORT_CHECK_TYPE, | |
1032 | }; | |
1033 | ||
1034 | /* Nexthop register */ | |
1035 | static void zread_rnh_register(ZAPI_HANDLER_ARGS) | |
1036 | { | |
1037 | struct rnh *rnh; | |
1038 | struct stream *s; | |
1039 | struct prefix p; | |
1040 | unsigned short l = 0; | |
1041 | uint8_t flags = 0; | |
1042 | uint16_t type = cmd2type[hdr->command]; | |
1d30d1f4 | 1043 | bool exist; |
bf094f69 QY |
1044 | |
1045 | if (IS_ZEBRA_DEBUG_NHT) | |
1046 | zlog_debug( | |
1047 | "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u\n", | |
1048 | zebra_route_string(client->proto), hdr->length, | |
1049 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route", | |
1050 | zvrf->vrf->vrf_id); | |
1051 | ||
1052 | s = msg; | |
1053 | ||
1054 | client->nh_reg_time = monotime(NULL); | |
1055 | ||
1056 | while (l < hdr->length) { | |
1057 | STREAM_GETC(s, flags); | |
1058 | STREAM_GETW(s, p.family); | |
1059 | STREAM_GETC(s, p.prefixlen); | |
1060 | l += 4; | |
1061 | if (p.family == AF_INET) { | |
ab5990d8 | 1062 | client->v4_nh_watch_add_cnt++; |
bf094f69 | 1063 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1064 | zlog_debug( |
bf094f69 QY |
1065 | "%s: Specified prefix hdr->length %d is too large for a v4 address", |
1066 | __PRETTY_FUNCTION__, p.prefixlen); | |
1067 | return; | |
1068 | } | |
1069 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1070 | l += IPV4_MAX_BYTELEN; | |
1071 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1072 | client->v6_nh_watch_add_cnt++; |
bf094f69 | 1073 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1074 | zlog_debug( |
bf094f69 QY |
1075 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
1076 | __PRETTY_FUNCTION__, p.prefixlen); | |
1077 | return; | |
1078 | } | |
1079 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1080 | l += IPV6_MAX_BYTELEN; | |
1081 | } else { | |
af4c2728 | 1082 | flog_err( |
e914ccbe | 1083 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1084 | "rnh_register: Received unknown family type %d\n", |
1085 | p.family); | |
1086 | return; | |
1087 | } | |
1d30d1f4 DS |
1088 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type, &exist); |
1089 | if (!rnh) | |
1090 | return; | |
1091 | ||
bf094f69 QY |
1092 | if (type == RNH_NEXTHOP_TYPE) { |
1093 | if (flags | |
1094 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1095 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1096 | else if (!flags | |
1097 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
1098 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
1099 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
1100 | if (flags | |
1101 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
1102 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1103 | else if (!flags | |
1104 | && CHECK_FLAG(rnh->flags, | |
1105 | ZEBRA_NHT_EXACT_MATCH)) | |
1106 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
1107 | } | |
1108 | ||
1109 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
1110 | /* Anything not AF_INET/INET6 has been filtered out above */ | |
1d30d1f4 | 1111 | if (!exist) |
73bf60a0 RW |
1112 | zebra_evaluate_rnh(zvrf, family2afi(p.family), 1, type, |
1113 | &p); | |
bf094f69 QY |
1114 | } |
1115 | ||
1116 | stream_failure: | |
1117 | return; | |
1118 | } | |
1119 | ||
1120 | /* Nexthop register */ | |
1121 | static void zread_rnh_unregister(ZAPI_HANDLER_ARGS) | |
1122 | { | |
1123 | struct rnh *rnh; | |
1124 | struct stream *s; | |
1125 | struct prefix p; | |
1126 | unsigned short l = 0; | |
1127 | uint16_t type = cmd2type[hdr->command]; | |
1128 | ||
1129 | if (IS_ZEBRA_DEBUG_NHT) | |
1130 | zlog_debug( | |
1131 | "rnh_unregister msg from client %s: hdr->length=%d vrf: %u\n", | |
1132 | zebra_route_string(client->proto), hdr->length, | |
1133 | zvrf->vrf->vrf_id); | |
1134 | ||
1135 | s = msg; | |
1136 | ||
1137 | while (l < hdr->length) { | |
1138 | uint8_t flags; | |
1139 | ||
1140 | STREAM_GETC(s, flags); | |
1141 | if (flags != 0) | |
1142 | goto stream_failure; | |
1143 | ||
1144 | STREAM_GETW(s, p.family); | |
1145 | STREAM_GETC(s, p.prefixlen); | |
1146 | l += 4; | |
1147 | if (p.family == AF_INET) { | |
ab5990d8 | 1148 | client->v4_nh_watch_rem_cnt++; |
bf094f69 | 1149 | if (p.prefixlen > IPV4_MAX_BITLEN) { |
9df414fe | 1150 | zlog_debug( |
bf094f69 QY |
1151 | "%s: Specified prefix hdr->length %d is to large for a v4 address", |
1152 | __PRETTY_FUNCTION__, p.prefixlen); | |
1153 | return; | |
1154 | } | |
1155 | STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1156 | l += IPV4_MAX_BYTELEN; | |
1157 | } else if (p.family == AF_INET6) { | |
ab5990d8 | 1158 | client->v6_nh_watch_rem_cnt++; |
bf094f69 | 1159 | if (p.prefixlen > IPV6_MAX_BITLEN) { |
9df414fe | 1160 | zlog_debug( |
bf094f69 QY |
1161 | "%s: Specified prefix hdr->length %d is to large for a v6 address", |
1162 | __PRETTY_FUNCTION__, p.prefixlen); | |
1163 | return; | |
1164 | } | |
1165 | STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1166 | l += IPV6_MAX_BYTELEN; | |
1167 | } else { | |
af4c2728 | 1168 | flog_err( |
e914ccbe | 1169 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1170 | "rnh_register: Received unknown family type %d\n", |
1171 | p.family); | |
1172 | return; | |
1173 | } | |
1174 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
1175 | if (rnh) { | |
1176 | client->nh_dereg_time = monotime(NULL); | |
1177 | zebra_remove_rnh_client(rnh, client, type); | |
1178 | } | |
1179 | } | |
1180 | stream_failure: | |
1181 | return; | |
1182 | } | |
1183 | ||
1184 | #define ZEBRA_MIN_FEC_LENGTH 5 | |
1185 | ||
1186 | /* FEC register */ | |
1187 | static void zread_fec_register(ZAPI_HANDLER_ARGS) | |
1188 | { | |
1189 | struct stream *s; | |
1190 | unsigned short l = 0; | |
1191 | struct prefix p; | |
1192 | uint16_t flags; | |
57592a53 | 1193 | uint32_t label = MPLS_INVALID_LABEL; |
bf094f69 QY |
1194 | uint32_t label_index = MPLS_INVALID_LABEL_INDEX; |
1195 | ||
1196 | s = msg; | |
1197 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1198 | if (!zvrf) | |
8b1766b1 | 1199 | return; |
bf094f69 QY |
1200 | |
1201 | /* | |
1202 | * The minimum amount of data that can be sent for one fec | |
1203 | * registration | |
1204 | */ | |
1205 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1206 | flog_err( |
e914ccbe | 1207 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1208 | "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode", |
1209 | hdr->length); | |
1210 | return; | |
1211 | } | |
1212 | ||
1213 | while (l < hdr->length) { | |
1214 | STREAM_GETW(s, flags); | |
1215 | memset(&p, 0, sizeof(p)); | |
1216 | STREAM_GETW(s, p.family); | |
1217 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1218 | flog_err( |
e914ccbe | 1219 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1220 | "fec_register: Received unknown family type %d\n", |
1221 | p.family); | |
1222 | return; | |
1223 | } | |
1224 | STREAM_GETC(s, p.prefixlen); | |
1225 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1226 | || (p.family == AF_INET6 | |
1227 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1228 | zlog_debug( |
bf094f69 QY |
1229 | "%s: Specified prefix hdr->length: %d is to long for %d", |
1230 | __PRETTY_FUNCTION__, p.prefixlen, p.family); | |
1231 | return; | |
1232 | } | |
1233 | l += 5; | |
1234 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1235 | l += PSIZE(p.prefixlen); | |
57592a53 AD |
1236 | if (flags & ZEBRA_FEC_REGISTER_LABEL) { |
1237 | STREAM_GETL(s, label); | |
1238 | l += 4; | |
1239 | } else if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { | |
bf094f69 QY |
1240 | STREAM_GETL(s, label_index); |
1241 | l += 4; | |
57592a53 AD |
1242 | } |
1243 | ||
1244 | zebra_mpls_fec_register(zvrf, &p, label, label_index, client); | |
bf094f69 QY |
1245 | } |
1246 | ||
1247 | stream_failure: | |
1248 | return; | |
1249 | } | |
1250 | ||
1251 | /* FEC unregister */ | |
1252 | static void zread_fec_unregister(ZAPI_HANDLER_ARGS) | |
1253 | { | |
1254 | struct stream *s; | |
1255 | unsigned short l = 0; | |
1256 | struct prefix p; | |
1257 | uint16_t flags; | |
1258 | ||
1259 | s = msg; | |
1260 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1261 | if (!zvrf) | |
8b1766b1 | 1262 | return; |
bf094f69 QY |
1263 | |
1264 | /* | |
1265 | * The minimum amount of data that can be sent for one | |
1266 | * fec unregistration | |
1267 | */ | |
1268 | if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { | |
af4c2728 | 1269 | flog_err( |
e914ccbe | 1270 | EC_ZEBRA_IRDP_LEN_MISMATCH, |
bf094f69 QY |
1271 | "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode", |
1272 | hdr->length); | |
1273 | return; | |
1274 | } | |
1275 | ||
1276 | while (l < hdr->length) { | |
1277 | STREAM_GETW(s, flags); | |
1278 | if (flags != 0) | |
1279 | goto stream_failure; | |
1280 | ||
1281 | memset(&p, 0, sizeof(p)); | |
1282 | STREAM_GETW(s, p.family); | |
1283 | if (p.family != AF_INET && p.family != AF_INET6) { | |
af4c2728 | 1284 | flog_err( |
e914ccbe | 1285 | EC_ZEBRA_UNKNOWN_FAMILY, |
bf094f69 QY |
1286 | "fec_unregister: Received unknown family type %d\n", |
1287 | p.family); | |
1288 | return; | |
1289 | } | |
1290 | STREAM_GETC(s, p.prefixlen); | |
1291 | if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) | |
1292 | || (p.family == AF_INET6 | |
1293 | && p.prefixlen > IPV6_MAX_BITLEN)) { | |
9df414fe | 1294 | zlog_debug( |
bf094f69 QY |
1295 | "%s: Received prefix hdr->length %d which is greater than %d can support", |
1296 | __PRETTY_FUNCTION__, p.prefixlen, p.family); | |
1297 | return; | |
1298 | } | |
1299 | l += 5; | |
1300 | STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1301 | l += PSIZE(p.prefixlen); | |
1302 | zebra_mpls_fec_unregister(zvrf, &p, client); | |
1303 | } | |
1304 | ||
1305 | stream_failure: | |
1306 | return; | |
1307 | } | |
1308 | ||
1309 | ||
1310 | /* | |
1311 | * Register zebra server interface information. | |
1312 | * Send current all interface and address information. | |
1313 | */ | |
1314 | static void zread_interface_add(ZAPI_HANDLER_ARGS) | |
1315 | { | |
1316 | struct vrf *vrf; | |
1317 | struct interface *ifp; | |
1318 | ||
1319 | /* Interface information is needed. */ | |
1320 | vrf_bitmap_set(client->ifinfo, zvrf_id(zvrf)); | |
1321 | ||
1322 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { | |
1323 | FOR_ALL_INTERFACES (vrf, ifp) { | |
1324 | /* Skip pseudo interface. */ | |
1325 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1326 | continue; | |
1327 | ||
1328 | zsend_interface_add(client, ifp); | |
27ecbea3 | 1329 | zsend_interface_link_params(client, ifp); |
bf094f69 QY |
1330 | zsend_interface_addresses(client, ifp); |
1331 | } | |
1332 | } | |
1333 | } | |
1334 | ||
1335 | /* Unregister zebra server interface information. */ | |
1336 | static void zread_interface_delete(ZAPI_HANDLER_ARGS) | |
1337 | { | |
1338 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); | |
1339 | } | |
1340 | ||
1341 | void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, | |
1342 | const unsigned int nexthop_num) | |
1343 | { | |
1344 | if (nexthop_num > multipath_num) { | |
1345 | char buff[PREFIX2STR_BUFFER]; | |
8b1766b1 | 1346 | |
bf094f69 | 1347 | prefix2str(p, buff, sizeof(buff)); |
9df414fe | 1348 | flog_warn( |
e914ccbe | 1349 | EC_ZEBRA_MORE_NH_THAN_MULTIPATH, |
bf094f69 QY |
1350 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", |
1351 | caller, buff, nexthop_num, multipath_num); | |
1352 | } | |
1353 | } | |
1354 | ||
1355 | static void zread_route_add(ZAPI_HANDLER_ARGS) | |
1356 | { | |
1357 | struct stream *s; | |
1358 | struct zapi_route api; | |
1359 | struct zapi_nexthop *api_nh; | |
1360 | afi_t afi; | |
1361 | struct prefix_ipv6 *src_p = NULL; | |
1362 | struct route_entry *re; | |
1363 | struct nexthop *nexthop = NULL; | |
1364 | int i, ret; | |
1365 | vrf_id_t vrf_id = 0; | |
1366 | struct ipaddr vtep_ip; | |
1367 | ||
1368 | s = msg; | |
1369 | if (zapi_route_decode(s, &api) < 0) { | |
1370 | if (IS_ZEBRA_DEBUG_RECV) | |
1371 | zlog_debug("%s: Unable to decode zapi_route sent", | |
1372 | __PRETTY_FUNCTION__); | |
1373 | return; | |
1374 | } | |
1375 | ||
1376 | if (IS_ZEBRA_DEBUG_RECV) { | |
1377 | char buf_prefix[PREFIX_STRLEN]; | |
8b1766b1 | 1378 | |
bf094f69 QY |
1379 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); |
1380 | zlog_debug("%s: p=%s, ZAPI_MESSAGE_LABEL: %sset, flags=0x%x", | |
1381 | __func__, buf_prefix, | |
1382 | (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) ? "" | |
1383 | : "un"), | |
1384 | api.flags); | |
1385 | } | |
1386 | ||
1387 | /* Allocate new route. */ | |
1388 | vrf_id = zvrf_id(zvrf); | |
1389 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1390 | re->type = api.type; | |
1391 | re->instance = api.instance; | |
1392 | re->flags = api.flags; | |
1393 | re->uptime = time(NULL); | |
1394 | re->vrf_id = vrf_id; | |
1395 | if (api.tableid && vrf_id == VRF_DEFAULT) | |
1396 | re->table = api.tableid; | |
1397 | else | |
1398 | re->table = zvrf->table_id; | |
1399 | ||
7fcb24bb RW |
1400 | if (!CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP) |
1401 | || api.nexthop_num == 0) { | |
1402 | char buf_prefix[PREFIX_STRLEN]; | |
1403 | ||
1404 | prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); | |
1405 | flog_warn(EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS, | |
1406 | "%s: received a route without nexthops for prefix %s", | |
1407 | __func__, buf_prefix); | |
1408 | XFREE(MTYPE_RE, re); | |
1409 | return; | |
1410 | } | |
1411 | ||
bf094f69 QY |
1412 | /* |
1413 | * TBD should _all_ of the nexthop add operations use | |
1414 | * api_nh->vrf_id instead of re->vrf_id ? I only changed | |
1415 | * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6. | |
1416 | */ | |
7fcb24bb RW |
1417 | for (i = 0; i < api.nexthop_num; i++) { |
1418 | api_nh = &api.nexthops[i]; | |
1419 | ifindex_t ifindex = 0; | |
1420 | ||
1421 | if (IS_ZEBRA_DEBUG_RECV) | |
1422 | zlog_debug("nh type %d", api_nh->type); | |
1423 | ||
1424 | switch (api_nh->type) { | |
1425 | case NEXTHOP_TYPE_IFINDEX: | |
1426 | nexthop = route_entry_nexthop_ifindex_add( | |
1427 | re, api_nh->ifindex, api_nh->vrf_id); | |
1428 | break; | |
1429 | case NEXTHOP_TYPE_IPV4: | |
1430 | if (IS_ZEBRA_DEBUG_RECV) { | |
1431 | char nhbuf[INET6_ADDRSTRLEN] = {0}; | |
1432 | ||
1433 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1434 | INET6_ADDRSTRLEN); | |
1435 | zlog_debug("%s: nh=%s, vrf_id=%d", __func__, | |
1436 | nhbuf, api_nh->vrf_id); | |
1437 | } | |
1438 | nexthop = route_entry_nexthop_ipv4_add( | |
1439 | re, &api_nh->gate.ipv4, NULL, api_nh->vrf_id); | |
1440 | break; | |
1441 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1442 | ||
1443 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
1444 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1445 | ifindex = get_l3vni_svi_ifindex(vrf_id); | |
1446 | } else { | |
1447 | ifindex = api_nh->ifindex; | |
bf094f69 QY |
1448 | } |
1449 | ||
7fcb24bb RW |
1450 | if (IS_ZEBRA_DEBUG_RECV) { |
1451 | char nhbuf[INET6_ADDRSTRLEN] = {0}; | |
1452 | ||
1453 | inet_ntop(AF_INET, &api_nh->gate.ipv4, nhbuf, | |
1454 | INET6_ADDRSTRLEN); | |
1455 | zlog_debug( | |
1456 | "%s: nh=%s, vrf_id=%d (re->vrf_id=%d), ifindex=%d", | |
1457 | __func__, nhbuf, api_nh->vrf_id, | |
1458 | re->vrf_id, ifindex); | |
bf094f69 | 1459 | } |
7fcb24bb RW |
1460 | nexthop = route_entry_nexthop_ipv4_ifindex_add( |
1461 | re, &api_nh->gate.ipv4, NULL, ifindex, | |
1462 | api_nh->vrf_id); | |
1463 | ||
1464 | /* if this an EVPN route entry, | |
1465 | * program the nh as neigh | |
1466 | */ | |
1467 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1468 | SET_FLAG(nexthop->flags, | |
1469 | NEXTHOP_FLAG_EVPN_RVTEP); | |
1470 | vtep_ip.ipa_type = IPADDR_V4; | |
1471 | memcpy(&(vtep_ip.ipaddr_v4), | |
1472 | &(api_nh->gate.ipv4), | |
1473 | sizeof(struct in_addr)); | |
1474 | zebra_vxlan_evpn_vrf_route_add( | |
1475 | vrf_id, &api_nh->rmac, &vtep_ip, | |
1476 | &api.prefix); | |
bf094f69 | 1477 | } |
7fcb24bb RW |
1478 | break; |
1479 | case NEXTHOP_TYPE_IPV6: | |
1480 | nexthop = route_entry_nexthop_ipv6_add( | |
1481 | re, &api_nh->gate.ipv6, api_nh->vrf_id); | |
1482 | break; | |
1483 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1484 | memset(&vtep_ip, 0, sizeof(struct ipaddr)); | |
1485 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1486 | ifindex = get_l3vni_svi_ifindex(vrf_id); | |
1487 | } else { | |
1488 | ifindex = api_nh->ifindex; | |
1489 | } | |
1490 | ||
1491 | nexthop = route_entry_nexthop_ipv6_ifindex_add( | |
1492 | re, &api_nh->gate.ipv6, ifindex, | |
1493 | api_nh->vrf_id); | |
1494 | ||
1495 | /* if this an EVPN route entry, | |
1496 | * program the nh as neigh | |
1497 | */ | |
1498 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { | |
1499 | SET_FLAG(nexthop->flags, | |
1500 | NEXTHOP_FLAG_EVPN_RVTEP); | |
1501 | vtep_ip.ipa_type = IPADDR_V6; | |
1502 | memcpy(&vtep_ip.ipaddr_v6, &(api_nh->gate.ipv6), | |
1503 | sizeof(struct in6_addr)); | |
1504 | zebra_vxlan_evpn_vrf_route_add( | |
1505 | vrf_id, &api_nh->rmac, &vtep_ip, | |
1506 | &api.prefix); | |
1507 | } | |
1508 | break; | |
1509 | case NEXTHOP_TYPE_BLACKHOLE: | |
1510 | nexthop = route_entry_nexthop_blackhole_add( | |
1511 | re, api_nh->bh_type); | |
1512 | break; | |
bf094f69 | 1513 | } |
bf094f69 | 1514 | |
7fcb24bb RW |
1515 | if (!nexthop) { |
1516 | flog_warn( | |
1517 | EC_ZEBRA_NEXTHOP_CREATION_FAILED, | |
1518 | "%s: Nexthops Specified: %d but we failed to properly create one", | |
1519 | __PRETTY_FUNCTION__, api.nexthop_num); | |
1520 | nexthops_free(re->ng.nexthop); | |
1521 | XFREE(MTYPE_RE, re); | |
1522 | return; | |
1523 | } | |
1524 | /* MPLS labels for BGP-LU or Segment Routing */ | |
1525 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) | |
1526 | && api_nh->type != NEXTHOP_TYPE_IFINDEX | |
1527 | && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) { | |
1528 | enum lsp_types_t label_type; | |
1529 | ||
1530 | label_type = lsp_type_from_re_type(client->proto); | |
1531 | ||
1532 | if (IS_ZEBRA_DEBUG_RECV) { | |
1533 | zlog_debug( | |
1534 | "%s: adding %d labels of type %d (1st=%u)", | |
1535 | __func__, api_nh->label_num, label_type, | |
1536 | api_nh->labels[0]); | |
1537 | } | |
1538 | ||
1539 | nexthop_add_labels(nexthop, label_type, | |
1540 | api_nh->label_num, | |
1541 | &api_nh->labels[0]); | |
1542 | } | |
1543 | } | |
1544 | ||
bf094f69 QY |
1545 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) |
1546 | re->distance = api.distance; | |
1547 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1548 | re->metric = api.metric; | |
1549 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1550 | re->tag = api.tag; | |
1551 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_MTU)) | |
1552 | re->mtu = api.mtu; | |
1553 | ||
1554 | afi = family2afi(api.prefix.family); | |
1555 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1556 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1557 | "%s: Received SRC Prefix but afi is not v6", |
bf094f69 QY |
1558 | __PRETTY_FUNCTION__); |
1559 | nexthops_free(re->ng.nexthop); | |
1560 | XFREE(MTYPE_RE, re); | |
1561 | return; | |
1562 | } | |
1563 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1564 | src_p = &api.src_prefix; | |
1565 | ||
1566 | ret = rib_add_multipath(afi, api.safi, &api.prefix, src_p, re); | |
1567 | ||
1568 | /* Stats */ | |
1569 | switch (api.prefix.family) { | |
1570 | case AF_INET: | |
1571 | if (ret > 0) | |
1572 | client->v4_route_add_cnt++; | |
1573 | else if (ret < 0) | |
1574 | client->v4_route_upd8_cnt++; | |
1575 | break; | |
1576 | case AF_INET6: | |
1577 | if (ret > 0) | |
1578 | client->v6_route_add_cnt++; | |
1579 | else if (ret < 0) | |
1580 | client->v6_route_upd8_cnt++; | |
1581 | break; | |
1582 | } | |
1583 | } | |
1584 | ||
1585 | static void zread_route_del(ZAPI_HANDLER_ARGS) | |
1586 | { | |
1587 | struct stream *s; | |
1588 | struct zapi_route api; | |
1589 | afi_t afi; | |
1590 | struct prefix_ipv6 *src_p = NULL; | |
1591 | uint32_t table_id; | |
1592 | ||
1593 | s = msg; | |
1594 | if (zapi_route_decode(s, &api) < 0) | |
1595 | return; | |
1596 | ||
1597 | afi = family2afi(api.prefix.family); | |
1598 | if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
e914ccbe | 1599 | flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI, |
9df414fe | 1600 | "%s: Received a src prefix while afi is not v6", |
bf094f69 QY |
1601 | __PRETTY_FUNCTION__); |
1602 | return; | |
1603 | } | |
1604 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
1605 | src_p = &api.src_prefix; | |
1606 | ||
1607 | if (api.vrf_id == VRF_DEFAULT && api.tableid != 0) | |
1608 | table_id = api.tableid; | |
1609 | else | |
1610 | table_id = zvrf->table_id; | |
1611 | ||
1612 | rib_delete(afi, api.safi, zvrf_id(zvrf), api.type, api.instance, | |
1613 | api.flags, &api.prefix, src_p, NULL, table_id, api.metric, | |
40ecd8e4 | 1614 | api.distance, false); |
bf094f69 QY |
1615 | |
1616 | /* Stats */ | |
1617 | switch (api.prefix.family) { | |
1618 | case AF_INET: | |
1619 | client->v4_route_del_cnt++; | |
1620 | break; | |
1621 | case AF_INET6: | |
1622 | client->v6_route_del_cnt++; | |
1623 | break; | |
1624 | } | |
1625 | } | |
1626 | ||
bf094f69 QY |
1627 | /* MRIB Nexthop lookup for IPv4. */ |
1628 | static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS) | |
1629 | { | |
1630 | struct in_addr addr; | |
1631 | struct route_entry *re; | |
1632 | ||
1633 | STREAM_GET(&addr.s_addr, msg, IPV4_MAX_BYTELEN); | |
1634 | re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
1635 | zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); | |
1636 | ||
1637 | stream_failure: | |
1638 | return; | |
1639 | } | |
1640 | ||
bf094f69 QY |
1641 | /* Register zebra server router-id information. Send current router-id */ |
1642 | static void zread_router_id_add(ZAPI_HANDLER_ARGS) | |
1643 | { | |
1644 | struct prefix p; | |
1645 | ||
1646 | /* Router-id information is needed. */ | |
1647 | vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); | |
1648 | ||
1649 | router_id_get(&p, zvrf_id(zvrf)); | |
1650 | ||
1651 | zsend_router_id_update(client, &p, zvrf_id(zvrf)); | |
1652 | } | |
1653 | ||
1654 | /* Unregister zebra server router-id information. */ | |
1655 | static void zread_router_id_delete(ZAPI_HANDLER_ARGS) | |
1656 | { | |
1657 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1658 | } | |
1659 | ||
1660 | static void zsend_capabilities(struct zserv *client, struct zebra_vrf *zvrf) | |
1661 | { | |
1662 | struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
1663 | ||
1664 | zclient_create_header(s, ZEBRA_CAPABILITIES, zvrf->vrf->vrf_id); | |
bb6b7f79 | 1665 | stream_putl(s, vrf_get_backend()); |
bf094f69 QY |
1666 | stream_putc(s, mpls_enabled); |
1667 | stream_putl(s, multipath_num); | |
02c0866d | 1668 | stream_putc(s, zebra_mlag_get_role()); |
bf094f69 QY |
1669 | |
1670 | stream_putw_at(s, 0, stream_get_endp(s)); | |
21ccc0cf | 1671 | zserv_send_message(client, s); |
bf094f69 QY |
1672 | } |
1673 | ||
1674 | /* Tie up route-type and client->sock */ | |
1675 | static void zread_hello(ZAPI_HANDLER_ARGS) | |
1676 | { | |
1677 | /* type of protocol (lib/zebra.h) */ | |
1678 | uint8_t proto; | |
1679 | unsigned short instance; | |
1680 | uint8_t notify; | |
1681 | ||
1682 | STREAM_GETC(msg, proto); | |
1683 | STREAM_GETW(msg, instance); | |
1684 | STREAM_GETC(msg, notify); | |
1685 | if (notify) | |
1686 | client->notify_owner = true; | |
1687 | ||
1688 | /* accept only dynamic routing protocols */ | |
f23cbcda | 1689 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_CONNECT)) { |
bf094f69 QY |
1690 | zlog_notice( |
1691 | "client %d says hello and bids fair to announce only %s routes vrf=%u", | |
1692 | client->sock, zebra_route_string(proto), | |
1693 | zvrf->vrf->vrf_id); | |
1694 | if (instance) | |
1695 | zlog_notice("client protocol instance %d", instance); | |
1696 | ||
1697 | client->proto = proto; | |
1698 | client->instance = instance; | |
1699 | } | |
1700 | ||
1701 | zsend_capabilities(client, zvrf); | |
bb6b7f79 | 1702 | zebra_vrf_update_all(client); |
bf094f69 QY |
1703 | stream_failure: |
1704 | return; | |
1705 | } | |
1706 | ||
1707 | /* Unregister all information in a VRF. */ | |
1708 | static void zread_vrf_unregister(ZAPI_HANDLER_ARGS) | |
1709 | { | |
1710 | int i; | |
1711 | afi_t afi; | |
1712 | ||
49db7a7b | 1713 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
bf094f69 QY |
1714 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
1715 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
49db7a7b RW |
1716 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); |
1717 | } | |
bf094f69 QY |
1718 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); |
1719 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1720 | } | |
1721 | ||
1722 | static void zread_mpls_labels(ZAPI_HANDLER_ARGS) | |
1723 | { | |
1724 | struct stream *s; | |
1725 | enum lsp_types_t type; | |
1726 | struct prefix prefix; | |
1727 | enum nexthop_types_t gtype; | |
1728 | union g_addr gate; | |
1729 | ifindex_t ifindex; | |
1730 | mpls_label_t in_label, out_label; | |
1731 | uint8_t distance; | |
1732 | ||
1733 | /* Get input stream. */ | |
1734 | s = msg; | |
1735 | ||
1736 | /* Get data. */ | |
1737 | STREAM_GETC(s, type); | |
1738 | STREAM_GETL(s, prefix.family); | |
1739 | switch (prefix.family) { | |
1740 | case AF_INET: | |
1741 | STREAM_GET(&prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1742 | STREAM_GETC(s, prefix.prefixlen); | |
1743 | if (prefix.prefixlen > IPV4_MAX_BITLEN) { | |
9df414fe | 1744 | zlog_debug( |
bf094f69 QY |
1745 | "%s: Specified prefix length %d is greater than a v4 address can support", |
1746 | __PRETTY_FUNCTION__, prefix.prefixlen); | |
1747 | return; | |
1748 | } | |
1749 | STREAM_GET(&gate.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
1750 | break; | |
1751 | case AF_INET6: | |
1752 | STREAM_GET(&prefix.u.prefix6, s, 16); | |
1753 | STREAM_GETC(s, prefix.prefixlen); | |
1754 | if (prefix.prefixlen > IPV6_MAX_BITLEN) { | |
9df414fe | 1755 | zlog_debug( |
bf094f69 QY |
1756 | "%s: Specified prefix length %d is greater than a v6 address can support", |
1757 | __PRETTY_FUNCTION__, prefix.prefixlen); | |
1758 | return; | |
1759 | } | |
1760 | STREAM_GET(&gate.ipv6, s, 16); | |
1761 | break; | |
1762 | default: | |
9df414fe QY |
1763 | zlog_debug("%s: Specified AF %d is not supported for this call", |
1764 | __PRETTY_FUNCTION__, prefix.family); | |
bf094f69 QY |
1765 | return; |
1766 | } | |
1767 | STREAM_GETL(s, ifindex); | |
1768 | STREAM_GETC(s, distance); | |
1769 | STREAM_GETL(s, in_label); | |
1770 | STREAM_GETL(s, out_label); | |
1771 | ||
1772 | switch (prefix.family) { | |
1773 | case AF_INET: | |
1774 | if (ifindex) | |
1775 | gtype = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1776 | else | |
1777 | gtype = NEXTHOP_TYPE_IPV4; | |
1778 | break; | |
1779 | case AF_INET6: | |
1780 | if (ifindex) | |
1781 | gtype = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1782 | else | |
1783 | gtype = NEXTHOP_TYPE_IPV6; | |
1784 | break; | |
1785 | default: | |
1786 | return; | |
1787 | } | |
1788 | ||
1789 | if (!mpls_enabled) | |
1790 | return; | |
1791 | ||
1792 | if (hdr->command == ZEBRA_MPLS_LABELS_ADD) { | |
1793 | mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, | |
1794 | ifindex); | |
1795 | mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1796 | distance, out_label); | |
1797 | } else if (hdr->command == ZEBRA_MPLS_LABELS_DELETE) { | |
1798 | mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, ifindex); | |
1799 | mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1800 | distance, out_label); | |
1801 | } | |
1802 | stream_failure: | |
1803 | return; | |
1804 | } | |
1805 | ||
1806 | /* Send response to a table manager connect request to client */ | |
1807 | static void zread_table_manager_connect(struct zserv *client, | |
1808 | struct stream *msg, vrf_id_t vrf_id) | |
1809 | { | |
1810 | struct stream *s; | |
1811 | uint8_t proto; | |
1812 | uint16_t instance; | |
1813 | ||
1814 | s = msg; | |
1815 | ||
1816 | /* Get data. */ | |
1817 | STREAM_GETC(s, proto); | |
1818 | STREAM_GETW(s, instance); | |
1819 | ||
1820 | /* accept only dynamic routing protocols */ | |
1821 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 1822 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
1823 | "client %d has wrong protocol %s", client->sock, |
1824 | zebra_route_string(proto)); | |
bf094f69 QY |
1825 | zsend_table_manager_connect_response(client, vrf_id, 1); |
1826 | return; | |
1827 | } | |
1828 | zlog_notice("client %d with vrf %u instance %u connected as %s", | |
1829 | client->sock, vrf_id, instance, zebra_route_string(proto)); | |
1830 | client->proto = proto; | |
1831 | client->instance = instance; | |
1832 | ||
1833 | /* | |
1834 | * Release previous labels of same protocol and instance. | |
1835 | * This is done in case it restarted from an unexpected shutdown. | |
1836 | */ | |
453844ab | 1837 | release_daemon_table_chunks(client); |
bf094f69 QY |
1838 | |
1839 | zsend_table_manager_connect_response(client, vrf_id, 0); | |
1840 | ||
1841 | stream_failure: | |
1842 | return; | |
1843 | } | |
1844 | ||
1845 | static void zread_label_manager_connect(struct zserv *client, | |
1846 | struct stream *msg, vrf_id_t vrf_id) | |
1847 | { | |
1848 | struct stream *s; | |
1849 | /* type of protocol (lib/zebra.h) */ | |
1850 | uint8_t proto; | |
1851 | unsigned short instance; | |
1852 | ||
1853 | /* Get input stream. */ | |
1854 | s = msg; | |
1855 | ||
1856 | /* Get data. */ | |
1857 | STREAM_GETC(s, proto); | |
1858 | STREAM_GETW(s, instance); | |
1859 | ||
1860 | /* accept only dynamic routing protocols */ | |
1861 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
e914ccbe | 1862 | flog_err(EC_ZEBRA_TM_WRONG_PROTO, |
1c50c1c0 QY |
1863 | "client %d has wrong protocol %s", client->sock, |
1864 | zebra_route_string(proto)); | |
f533be73 | 1865 | if (client->is_synchronous) |
1866 | zsend_label_manager_connect_response(client, vrf_id, 1); | |
bf094f69 QY |
1867 | return; |
1868 | } | |
1869 | zlog_notice("client %d with vrf %u instance %u connected as %s", | |
1870 | client->sock, vrf_id, instance, zebra_route_string(proto)); | |
1871 | client->proto = proto; | |
1872 | client->instance = instance; | |
1873 | ||
1874 | /* | |
453844ab QY |
1875 | * Release previous labels of same protocol and instance. |
1876 | * This is done in case it restarted from an unexpected shutdown. | |
1877 | */ | |
1878 | release_daemon_label_chunks(client); | |
bf094f69 QY |
1879 | |
1880 | zlog_debug( | |
1881 | " Label Manager client connected: sock %d, proto %s, vrf %u instance %u", | |
1882 | client->sock, zebra_route_string(proto), vrf_id, instance); | |
1883 | /* send response back */ | |
f533be73 | 1884 | if (client->is_synchronous) |
1885 | zsend_label_manager_connect_response(client, vrf_id, 0); | |
bf094f69 QY |
1886 | |
1887 | stream_failure: | |
1888 | return; | |
1889 | } | |
1890 | ||
1891 | static void zread_get_label_chunk(struct zserv *client, struct stream *msg, | |
1892 | vrf_id_t vrf_id) | |
1893 | { | |
1894 | struct stream *s; | |
1895 | uint8_t keep; | |
1896 | uint32_t size; | |
1897 | struct label_manager_chunk *lmc; | |
5dffb0e9 FR |
1898 | uint8_t proto; |
1899 | unsigned short instance; | |
bf094f69 QY |
1900 | |
1901 | /* Get input stream. */ | |
1902 | s = msg; | |
1903 | ||
1904 | /* Get data. */ | |
5dffb0e9 FR |
1905 | STREAM_GETC(s, proto); |
1906 | STREAM_GETW(s, instance); | |
bf094f69 QY |
1907 | STREAM_GETC(s, keep); |
1908 | STREAM_GETL(s, size); | |
1909 | ||
f533be73 | 1910 | lmc = assign_label_chunk(proto, instance, keep, size); |
bf094f69 | 1911 | if (!lmc) |
af4c2728 | 1912 | flog_err( |
e914ccbe | 1913 | EC_ZEBRA_LM_CANNOT_ASSIGN_CHUNK, |
0313523d | 1914 | "Unable to assign Label Chunk of size %u to %s instance %u", |
f533be73 | 1915 | size, zebra_route_string(proto), instance); |
bf094f69 | 1916 | else |
0313523d FR |
1917 | zlog_debug("Assigned Label Chunk %u - %u to %s instance %u", |
1918 | lmc->start, lmc->end, | |
f533be73 | 1919 | zebra_route_string(proto), instance); |
bf094f69 QY |
1920 | /* send response back */ |
1921 | zsend_assign_label_chunk_response(client, vrf_id, lmc); | |
1922 | ||
1923 | stream_failure: | |
1924 | return; | |
1925 | } | |
1926 | ||
1927 | static void zread_release_label_chunk(struct zserv *client, struct stream *msg) | |
1928 | { | |
1929 | struct stream *s; | |
1930 | uint32_t start, end; | |
5dffb0e9 FR |
1931 | uint8_t proto; |
1932 | unsigned short instance; | |
bf094f69 QY |
1933 | |
1934 | /* Get input stream. */ | |
1935 | s = msg; | |
1936 | ||
1937 | /* Get data. */ | |
5dffb0e9 FR |
1938 | STREAM_GETC(s, proto); |
1939 | STREAM_GETW(s, instance); | |
bf094f69 QY |
1940 | STREAM_GETL(s, start); |
1941 | STREAM_GETL(s, end); | |
1942 | ||
f533be73 | 1943 | release_label_chunk(proto, instance, start, end); |
bf094f69 QY |
1944 | |
1945 | stream_failure: | |
1946 | return; | |
1947 | } | |
1948 | static void zread_label_manager_request(ZAPI_HANDLER_ARGS) | |
1949 | { | |
1950 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
f533be73 | 1951 | client->is_synchronous = hdr->command == |
1952 | ZEBRA_LABEL_MANAGER_CONNECT; | |
bf094f69 QY |
1953 | |
1954 | /* external label manager */ | |
1955 | if (lm_is_external) | |
0313523d | 1956 | zread_relay_label_manager_request(hdr->command, client, msg, |
bf094f69 QY |
1957 | zvrf_id(zvrf)); |
1958 | /* this is a label manager */ | |
1959 | else { | |
f533be73 | 1960 | if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT || |
1961 | hdr->command == ZEBRA_LABEL_MANAGER_CONNECT_ASYNC) | |
bf094f69 QY |
1962 | zread_label_manager_connect(client, msg, zvrf_id(zvrf)); |
1963 | else { | |
bf094f69 QY |
1964 | if (hdr->command == ZEBRA_GET_LABEL_CHUNK) |
1965 | zread_get_label_chunk(client, msg, | |
1966 | zvrf_id(zvrf)); | |
1967 | else if (hdr->command == ZEBRA_RELEASE_LABEL_CHUNK) | |
1968 | zread_release_label_chunk(client, msg); | |
1969 | } | |
1970 | } | |
1971 | } | |
1972 | ||
1973 | static void zread_get_table_chunk(struct zserv *client, struct stream *msg, | |
1974 | vrf_id_t vrf_id) | |
1975 | { | |
1976 | struct stream *s; | |
1977 | uint32_t size; | |
1978 | struct table_manager_chunk *tmc; | |
1979 | ||
1980 | /* Get input stream. */ | |
1981 | s = msg; | |
1982 | ||
1983 | /* Get data. */ | |
1984 | STREAM_GETL(s, size); | |
1985 | ||
1986 | tmc = assign_table_chunk(client->proto, client->instance, size); | |
1987 | if (!tmc) | |
e914ccbe | 1988 | flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK, |
1c50c1c0 QY |
1989 | "%s: Unable to assign Table Chunk of size %u", |
1990 | __func__, size); | |
bf094f69 QY |
1991 | else |
1992 | zlog_debug("Assigned Table Chunk %u - %u", tmc->start, | |
1993 | tmc->end); | |
1994 | /* send response back */ | |
1995 | zsend_assign_table_chunk_response(client, vrf_id, tmc); | |
1996 | ||
1997 | stream_failure: | |
1998 | return; | |
1999 | } | |
2000 | ||
2001 | static void zread_release_table_chunk(struct zserv *client, struct stream *msg) | |
2002 | { | |
2003 | struct stream *s; | |
2004 | uint32_t start, end; | |
2005 | ||
2006 | /* Get input stream. */ | |
2007 | s = msg; | |
2008 | ||
2009 | /* Get data. */ | |
2010 | STREAM_GETL(s, start); | |
2011 | STREAM_GETL(s, end); | |
2012 | ||
2013 | release_table_chunk(client->proto, client->instance, start, end); | |
2014 | ||
2015 | stream_failure: | |
2016 | return; | |
2017 | } | |
2018 | ||
2019 | static void zread_table_manager_request(ZAPI_HANDLER_ARGS) | |
2020 | { | |
2021 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
2022 | if (hdr->command == ZEBRA_TABLE_MANAGER_CONNECT) | |
2023 | zread_table_manager_connect(client, msg, zvrf_id(zvrf)); | |
2024 | else { | |
2025 | /* Sanity: don't allow 'unidentified' requests */ | |
2026 | if (!client->proto) { | |
af4c2728 | 2027 | flog_err( |
e914ccbe | 2028 | EC_ZEBRA_TM_ALIENS, |
bf094f69 QY |
2029 | "Got table request from an unidentified client"); |
2030 | return; | |
2031 | } | |
2032 | if (hdr->command == ZEBRA_GET_TABLE_CHUNK) | |
2033 | zread_get_table_chunk(client, msg, zvrf_id(zvrf)); | |
2034 | else if (hdr->command == ZEBRA_RELEASE_TABLE_CHUNK) | |
2035 | zread_release_table_chunk(client, msg); | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | static void zread_pseudowire(ZAPI_HANDLER_ARGS) | |
2040 | { | |
2041 | struct stream *s; | |
2042 | char ifname[IF_NAMESIZE]; | |
2043 | ifindex_t ifindex; | |
2044 | int type; | |
2045 | int af; | |
2046 | union g_addr nexthop; | |
2047 | uint32_t local_label; | |
2048 | uint32_t remote_label; | |
2049 | uint8_t flags; | |
2050 | union pw_protocol_fields data; | |
2051 | uint8_t protocol; | |
2052 | struct zebra_pw *pw; | |
2053 | ||
2054 | /* Get input stream. */ | |
2055 | s = msg; | |
2056 | ||
2057 | /* Get data. */ | |
2058 | STREAM_GET(ifname, s, IF_NAMESIZE); | |
2059 | STREAM_GETL(s, ifindex); | |
2060 | STREAM_GETL(s, type); | |
2061 | STREAM_GETL(s, af); | |
2062 | switch (af) { | |
2063 | case AF_INET: | |
2064 | STREAM_GET(&nexthop.ipv4.s_addr, s, IPV4_MAX_BYTELEN); | |
2065 | break; | |
2066 | case AF_INET6: | |
2067 | STREAM_GET(&nexthop.ipv6, s, 16); | |
2068 | break; | |
2069 | default: | |
2070 | return; | |
2071 | } | |
2072 | STREAM_GETL(s, local_label); | |
2073 | STREAM_GETL(s, remote_label); | |
2074 | STREAM_GETC(s, flags); | |
2075 | STREAM_GET(&data, s, sizeof(data)); | |
2076 | protocol = client->proto; | |
2077 | ||
2078 | pw = zebra_pw_find(zvrf, ifname); | |
2079 | switch (hdr->command) { | |
2080 | case ZEBRA_PW_ADD: | |
2081 | if (pw) { | |
e914ccbe | 2082 | flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS, |
9df414fe | 2083 | "%s: pseudowire %s already exists [%s]", |
bf094f69 QY |
2084 | __func__, ifname, |
2085 | zserv_command_string(hdr->command)); | |
2086 | return; | |
2087 | } | |
2088 | ||
2089 | zebra_pw_add(zvrf, ifname, protocol, client); | |
2090 | break; | |
2091 | case ZEBRA_PW_DELETE: | |
2092 | if (!pw) { | |
e914ccbe | 2093 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2094 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2095 | ifname, zserv_command_string(hdr->command)); |
2096 | return; | |
2097 | } | |
2098 | ||
2099 | zebra_pw_del(zvrf, pw); | |
2100 | break; | |
2101 | case ZEBRA_PW_SET: | |
2102 | case ZEBRA_PW_UNSET: | |
2103 | if (!pw) { | |
e914ccbe | 2104 | flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT, |
9df414fe | 2105 | "%s: pseudowire %s not found [%s]", __func__, |
bf094f69 QY |
2106 | ifname, zserv_command_string(hdr->command)); |
2107 | return; | |
2108 | } | |
2109 | ||
2110 | switch (hdr->command) { | |
2111 | case ZEBRA_PW_SET: | |
2112 | pw->enabled = 1; | |
2113 | break; | |
2114 | case ZEBRA_PW_UNSET: | |
2115 | pw->enabled = 0; | |
2116 | break; | |
2117 | } | |
2118 | ||
2119 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
2120 | remote_label, flags, &data); | |
2121 | break; | |
2122 | } | |
2123 | ||
2124 | stream_failure: | |
2125 | return; | |
2126 | } | |
2127 | ||
2128 | static void zread_interface_set_master(ZAPI_HANDLER_ARGS) | |
2129 | { | |
2130 | struct interface *master; | |
2131 | struct interface *slave; | |
2132 | struct stream *s = msg; | |
2133 | int ifindex; | |
2134 | vrf_id_t vrf_id; | |
2135 | ||
2136 | STREAM_GETL(s, vrf_id); | |
2137 | STREAM_GETL(s, ifindex); | |
2138 | master = if_lookup_by_index(ifindex, vrf_id); | |
2139 | ||
2140 | STREAM_GETL(s, vrf_id); | |
2141 | STREAM_GETL(s, ifindex); | |
2142 | slave = if_lookup_by_index(ifindex, vrf_id); | |
2143 | ||
2144 | if (!master || !slave) | |
2145 | return; | |
2146 | ||
2147 | kernel_interface_set_master(master, slave); | |
2148 | ||
2149 | stream_failure: | |
2150 | return; | |
2151 | } | |
2152 | ||
2153 | ||
2154 | static void zread_vrf_label(ZAPI_HANDLER_ARGS) | |
2155 | { | |
2156 | struct interface *ifp; | |
2157 | mpls_label_t nlabel; | |
2158 | afi_t afi; | |
2159 | struct stream *s; | |
2160 | struct zebra_vrf *def_zvrf; | |
2161 | enum lsp_types_t ltype; | |
2162 | ||
2163 | s = msg; | |
2164 | STREAM_GETL(s, nlabel); | |
2165 | STREAM_GETC(s, afi); | |
2166 | if (nlabel == zvrf->label[afi]) { | |
2167 | /* | |
2168 | * Nothing to do here move along | |
2169 | */ | |
2170 | return; | |
2171 | } | |
2172 | ||
2173 | STREAM_GETC(s, ltype); | |
2174 | ||
2175 | if (zvrf->vrf->vrf_id != VRF_DEFAULT) | |
2176 | ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id); | |
2177 | else | |
2178 | ifp = if_lookup_by_name("lo", VRF_DEFAULT); | |
2179 | ||
2180 | if (!ifp) { | |
2181 | zlog_debug("Unable to find specified Interface for %s", | |
2182 | zvrf->vrf->name); | |
2183 | return; | |
2184 | } | |
2185 | ||
2186 | def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT); | |
2187 | ||
2188 | if (zvrf->label[afi] != MPLS_LABEL_NONE) { | |
2189 | afi_t scrubber; | |
2190 | bool really_remove; | |
2191 | ||
2192 | really_remove = true; | |
2193 | for (scrubber = AFI_IP; scrubber < AFI_MAX; scrubber++) { | |
2194 | if (scrubber == afi) | |
2195 | continue; | |
2196 | ||
2197 | if (zvrf->label[scrubber] == MPLS_LABEL_NONE) | |
2198 | continue; | |
2199 | ||
2200 | if (zvrf->label[afi] == zvrf->label[scrubber]) { | |
2201 | really_remove = false; | |
2202 | break; | |
2203 | } | |
2204 | } | |
2205 | ||
2206 | if (really_remove) | |
2207 | mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label[afi], | |
2208 | NEXTHOP_TYPE_IFINDEX, NULL, | |
2209 | ifp->ifindex); | |
2210 | } | |
2211 | ||
2212 | if (nlabel != MPLS_LABEL_NONE) | |
2213 | mpls_lsp_install(def_zvrf, ltype, nlabel, | |
2214 | MPLS_LABEL_IMPLICIT_NULL, NEXTHOP_TYPE_IFINDEX, | |
2215 | NULL, ifp->ifindex); | |
2216 | ||
2217 | zvrf->label[afi] = nlabel; | |
2218 | stream_failure: | |
2219 | return; | |
2220 | } | |
2221 | ||
2222 | static inline void zread_rule(ZAPI_HANDLER_ARGS) | |
2223 | { | |
2224 | struct zebra_pbr_rule zpr; | |
2225 | struct stream *s; | |
2226 | uint32_t total, i; | |
2227 | ifindex_t ifindex; | |
2228 | ||
2229 | s = msg; | |
2230 | STREAM_GETL(s, total); | |
2231 | ||
2232 | for (i = 0; i < total; i++) { | |
2233 | memset(&zpr, 0, sizeof(zpr)); | |
2234 | ||
2235 | zpr.sock = client->sock; | |
2236 | zpr.rule.vrf_id = hdr->vrf_id; | |
2237 | STREAM_GETL(s, zpr.rule.seq); | |
2238 | STREAM_GETL(s, zpr.rule.priority); | |
2239 | STREAM_GETL(s, zpr.rule.unique); | |
2240 | STREAM_GETC(s, zpr.rule.filter.src_ip.family); | |
2241 | STREAM_GETC(s, zpr.rule.filter.src_ip.prefixlen); | |
2242 | STREAM_GET(&zpr.rule.filter.src_ip.u.prefix, s, | |
2243 | prefix_blen(&zpr.rule.filter.src_ip)); | |
2244 | STREAM_GETW(s, zpr.rule.filter.src_port); | |
2245 | STREAM_GETC(s, zpr.rule.filter.dst_ip.family); | |
2246 | STREAM_GETC(s, zpr.rule.filter.dst_ip.prefixlen); | |
2247 | STREAM_GET(&zpr.rule.filter.dst_ip.u.prefix, s, | |
2248 | prefix_blen(&zpr.rule.filter.dst_ip)); | |
2249 | STREAM_GETW(s, zpr.rule.filter.dst_port); | |
2250 | STREAM_GETL(s, zpr.rule.filter.fwmark); | |
2251 | STREAM_GETL(s, zpr.rule.action.table); | |
2252 | STREAM_GETL(s, ifindex); | |
2253 | ||
2254 | if (ifindex) { | |
06432d4e PG |
2255 | zpr.ifp = if_lookup_by_index_per_ns( |
2256 | zvrf->zns, | |
2257 | ifindex); | |
bf094f69 QY |
2258 | if (!zpr.ifp) { |
2259 | zlog_debug("Failed to lookup ifindex: %u", | |
2260 | ifindex); | |
2261 | return; | |
2262 | } | |
2263 | } | |
2264 | ||
2265 | if (!is_default_prefix(&zpr.rule.filter.src_ip)) | |
2266 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_IP; | |
2267 | ||
2268 | if (!is_default_prefix(&zpr.rule.filter.dst_ip)) | |
2269 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_IP; | |
2270 | ||
2271 | if (zpr.rule.filter.src_port) | |
2272 | zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_PORT; | |
2273 | ||
2274 | if (zpr.rule.filter.dst_port) | |
2275 | zpr.rule.filter.filter_bm |= PBR_FILTER_DST_PORT; | |
2276 | ||
2277 | if (zpr.rule.filter.fwmark) | |
2278 | zpr.rule.filter.filter_bm |= PBR_FILTER_FWMARK; | |
2279 | ||
7f0ea8a4 | 2280 | zpr.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 | 2281 | if (hdr->command == ZEBRA_RULE_ADD) |
7f0ea8a4 | 2282 | zebra_pbr_add_rule(&zpr); |
bf094f69 | 2283 | else |
7f0ea8a4 | 2284 | zebra_pbr_del_rule(&zpr); |
bf094f69 QY |
2285 | } |
2286 | ||
2287 | stream_failure: | |
2288 | return; | |
2289 | } | |
2290 | ||
2291 | static inline void zread_ipset(ZAPI_HANDLER_ARGS) | |
2292 | { | |
2293 | struct zebra_pbr_ipset zpi; | |
2294 | struct stream *s; | |
2295 | uint32_t total, i; | |
2296 | ||
2297 | s = msg; | |
2298 | STREAM_GETL(s, total); | |
2299 | ||
2300 | for (i = 0; i < total; i++) { | |
2301 | memset(&zpi, 0, sizeof(zpi)); | |
2302 | ||
2303 | zpi.sock = client->sock; | |
be2028d1 | 2304 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2305 | STREAM_GETL(s, zpi.unique); |
2306 | STREAM_GETL(s, zpi.type); | |
2307 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2308 | ||
2309 | if (hdr->command == ZEBRA_IPSET_CREATE) | |
62f20a52 | 2310 | zebra_pbr_create_ipset(&zpi); |
bf094f69 | 2311 | else |
62f20a52 | 2312 | zebra_pbr_destroy_ipset(&zpi); |
bf094f69 QY |
2313 | } |
2314 | ||
2315 | stream_failure: | |
2316 | return; | |
2317 | } | |
2318 | ||
2319 | static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS) | |
2320 | { | |
2321 | struct zebra_pbr_ipset_entry zpi; | |
2322 | struct zebra_pbr_ipset ipset; | |
2323 | struct stream *s; | |
2324 | uint32_t total, i; | |
2325 | ||
2326 | s = msg; | |
2327 | STREAM_GETL(s, total); | |
2328 | ||
2329 | for (i = 0; i < total; i++) { | |
2330 | memset(&zpi, 0, sizeof(zpi)); | |
2331 | memset(&ipset, 0, sizeof(ipset)); | |
2332 | ||
2333 | zpi.sock = client->sock; | |
2334 | STREAM_GETL(s, zpi.unique); | |
2335 | STREAM_GET(&ipset.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
2336 | STREAM_GETC(s, zpi.src.family); | |
2337 | STREAM_GETC(s, zpi.src.prefixlen); | |
2338 | STREAM_GET(&zpi.src.u.prefix, s, prefix_blen(&zpi.src)); | |
2339 | STREAM_GETC(s, zpi.dst.family); | |
2340 | STREAM_GETC(s, zpi.dst.prefixlen); | |
2341 | STREAM_GET(&zpi.dst.u.prefix, s, prefix_blen(&zpi.dst)); | |
2342 | ||
25d760c5 PG |
2343 | STREAM_GETW(s, zpi.src_port_min); |
2344 | STREAM_GETW(s, zpi.src_port_max); | |
2345 | STREAM_GETW(s, zpi.dst_port_min); | |
2346 | STREAM_GETW(s, zpi.dst_port_max); | |
2347 | STREAM_GETC(s, zpi.proto); | |
bf094f69 QY |
2348 | if (!is_default_prefix(&zpi.src)) |
2349 | zpi.filter_bm |= PBR_FILTER_SRC_IP; | |
2350 | ||
2351 | if (!is_default_prefix(&zpi.dst)) | |
2352 | zpi.filter_bm |= PBR_FILTER_DST_IP; | |
be729dd7 | 2353 | if (zpi.dst_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 | 2354 | zpi.filter_bm |= PBR_FILTER_DST_PORT; |
be729dd7 | 2355 | if (zpi.src_port_min != 0 || zpi.proto == IPPROTO_ICMP) |
25d760c5 PG |
2356 | zpi.filter_bm |= PBR_FILTER_SRC_PORT; |
2357 | if (zpi.dst_port_max != 0) | |
2358 | zpi.filter_bm |= PBR_FILTER_DST_PORT_RANGE; | |
2359 | if (zpi.src_port_max != 0) | |
2360 | zpi.filter_bm |= PBR_FILTER_SRC_PORT_RANGE; | |
2361 | if (zpi.proto != 0) | |
2362 | zpi.filter_bm |= PBR_FILTER_PROTO; | |
bf094f69 QY |
2363 | |
2364 | /* calculate backpointer */ | |
62f20a52 DS |
2365 | zpi.backpointer = |
2366 | zebra_pbr_lookup_ipset_pername(ipset.ipset_name); | |
bf094f69 | 2367 | if (hdr->command == ZEBRA_IPSET_ENTRY_ADD) |
62f20a52 | 2368 | zebra_pbr_add_ipset_entry(&zpi); |
bf094f69 | 2369 | else |
62f20a52 | 2370 | zebra_pbr_del_ipset_entry(&zpi); |
bf094f69 QY |
2371 | } |
2372 | ||
2373 | stream_failure: | |
2374 | return; | |
2375 | } | |
2376 | ||
2377 | static inline void zread_iptable(ZAPI_HANDLER_ARGS) | |
2378 | { | |
2379 | struct zebra_pbr_iptable zpi; | |
2380 | struct stream *s; | |
2381 | ||
2382 | s = msg; | |
2383 | ||
2384 | memset(&zpi, 0, sizeof(zpi)); | |
2385 | ||
f80ec7e3 | 2386 | zpi.interface_name_list = list_new(); |
bf094f69 | 2387 | zpi.sock = client->sock; |
be2028d1 | 2388 | zpi.vrf_id = zvrf->vrf->vrf_id; |
bf094f69 QY |
2389 | STREAM_GETL(s, zpi.unique); |
2390 | STREAM_GETL(s, zpi.type); | |
2391 | STREAM_GETL(s, zpi.filter_bm); | |
2392 | STREAM_GETL(s, zpi.action); | |
2393 | STREAM_GETL(s, zpi.fwmark); | |
2394 | STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); | |
e7f7dad4 PG |
2395 | STREAM_GETW(s, zpi.pkt_len_min); |
2396 | STREAM_GETW(s, zpi.pkt_len_max); | |
dc993e76 PG |
2397 | STREAM_GETW(s, zpi.tcp_flags); |
2398 | STREAM_GETW(s, zpi.tcp_mask_flags); | |
4977bd6c | 2399 | STREAM_GETC(s, zpi.dscp_value); |
5ac5b7cc | 2400 | STREAM_GETC(s, zpi.fragment); |
f80ec7e3 PG |
2401 | STREAM_GETL(s, zpi.nb_interface); |
2402 | zebra_pbr_iptable_update_interfacelist(s, &zpi); | |
bf094f69 QY |
2403 | |
2404 | if (hdr->command == ZEBRA_IPTABLE_ADD) | |
62f20a52 | 2405 | zebra_pbr_add_iptable(&zpi); |
bf094f69 | 2406 | else |
62f20a52 | 2407 | zebra_pbr_del_iptable(&zpi); |
bf094f69 QY |
2408 | stream_failure: |
2409 | return; | |
2410 | } | |
2411 | ||
2412 | void (*zserv_handlers[])(ZAPI_HANDLER_ARGS) = { | |
2413 | [ZEBRA_ROUTER_ID_ADD] = zread_router_id_add, | |
2414 | [ZEBRA_ROUTER_ID_DELETE] = zread_router_id_delete, | |
2415 | [ZEBRA_INTERFACE_ADD] = zread_interface_add, | |
2416 | [ZEBRA_INTERFACE_DELETE] = zread_interface_delete, | |
2417 | [ZEBRA_ROUTE_ADD] = zread_route_add, | |
2418 | [ZEBRA_ROUTE_DELETE] = zread_route_del, | |
bf094f69 QY |
2419 | [ZEBRA_REDISTRIBUTE_ADD] = zebra_redistribute_add, |
2420 | [ZEBRA_REDISTRIBUTE_DELETE] = zebra_redistribute_delete, | |
2421 | [ZEBRA_REDISTRIBUTE_DEFAULT_ADD] = zebra_redistribute_default_add, | |
2422 | [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE] = zebra_redistribute_default_delete, | |
2423 | [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB] = zread_ipv4_nexthop_lookup_mrib, | |
2424 | [ZEBRA_HELLO] = zread_hello, | |
2425 | [ZEBRA_NEXTHOP_REGISTER] = zread_rnh_register, | |
2426 | [ZEBRA_NEXTHOP_UNREGISTER] = zread_rnh_unregister, | |
2427 | [ZEBRA_IMPORT_ROUTE_REGISTER] = zread_rnh_register, | |
2428 | [ZEBRA_IMPORT_ROUTE_UNREGISTER] = zread_rnh_unregister, | |
2429 | [ZEBRA_BFD_DEST_UPDATE] = zebra_ptm_bfd_dst_register, | |
2430 | [ZEBRA_BFD_DEST_REGISTER] = zebra_ptm_bfd_dst_register, | |
2431 | [ZEBRA_BFD_DEST_DEREGISTER] = zebra_ptm_bfd_dst_deregister, | |
d3af6147 RZ |
2432 | #if HAVE_BFDD > 0 |
2433 | [ZEBRA_BFD_DEST_REPLAY] = zebra_ptm_bfd_dst_replay, | |
2434 | #endif /* HAVE_BFDD */ | |
bf094f69 QY |
2435 | [ZEBRA_VRF_UNREGISTER] = zread_vrf_unregister, |
2436 | [ZEBRA_VRF_LABEL] = zread_vrf_label, | |
2437 | [ZEBRA_BFD_CLIENT_REGISTER] = zebra_ptm_bfd_client_register, | |
2438 | #if defined(HAVE_RTADV) | |
2439 | [ZEBRA_INTERFACE_ENABLE_RADV] = zebra_interface_radv_enable, | |
2440 | [ZEBRA_INTERFACE_DISABLE_RADV] = zebra_interface_radv_disable, | |
2441 | #else | |
2442 | [ZEBRA_INTERFACE_ENABLE_RADV] = NULL, | |
2443 | [ZEBRA_INTERFACE_DISABLE_RADV] = NULL, | |
2444 | #endif | |
2445 | [ZEBRA_MPLS_LABELS_ADD] = zread_mpls_labels, | |
2446 | [ZEBRA_MPLS_LABELS_DELETE] = zread_mpls_labels, | |
2447 | [ZEBRA_IPMR_ROUTE_STATS] = zebra_ipmr_route_stats, | |
2448 | [ZEBRA_LABEL_MANAGER_CONNECT] = zread_label_manager_request, | |
f533be73 | 2449 | [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC] = zread_label_manager_request, |
bf094f69 QY |
2450 | [ZEBRA_GET_LABEL_CHUNK] = zread_label_manager_request, |
2451 | [ZEBRA_RELEASE_LABEL_CHUNK] = zread_label_manager_request, | |
2452 | [ZEBRA_FEC_REGISTER] = zread_fec_register, | |
2453 | [ZEBRA_FEC_UNREGISTER] = zread_fec_unregister, | |
2454 | [ZEBRA_ADVERTISE_DEFAULT_GW] = zebra_vxlan_advertise_gw_macip, | |
2455 | [ZEBRA_ADVERTISE_SUBNET] = zebra_vxlan_advertise_subnet, | |
2456 | [ZEBRA_ADVERTISE_ALL_VNI] = zebra_vxlan_advertise_all_vni, | |
2457 | [ZEBRA_REMOTE_VTEP_ADD] = zebra_vxlan_remote_vtep_add, | |
2458 | [ZEBRA_REMOTE_VTEP_DEL] = zebra_vxlan_remote_vtep_del, | |
2459 | [ZEBRA_REMOTE_MACIP_ADD] = zebra_vxlan_remote_macip_add, | |
2460 | [ZEBRA_REMOTE_MACIP_DEL] = zebra_vxlan_remote_macip_del, | |
3950b52c | 2461 | [ZEBRA_DUPLICATE_ADDR_DETECTION] = zebra_vxlan_dup_addr_detection, |
bf094f69 QY |
2462 | [ZEBRA_INTERFACE_SET_MASTER] = zread_interface_set_master, |
2463 | [ZEBRA_PW_ADD] = zread_pseudowire, | |
2464 | [ZEBRA_PW_DELETE] = zread_pseudowire, | |
2465 | [ZEBRA_PW_SET] = zread_pseudowire, | |
2466 | [ZEBRA_PW_UNSET] = zread_pseudowire, | |
2467 | [ZEBRA_RULE_ADD] = zread_rule, | |
2468 | [ZEBRA_RULE_DELETE] = zread_rule, | |
2469 | [ZEBRA_TABLE_MANAGER_CONNECT] = zread_table_manager_request, | |
2470 | [ZEBRA_GET_TABLE_CHUNK] = zread_table_manager_request, | |
2471 | [ZEBRA_RELEASE_TABLE_CHUNK] = zread_table_manager_request, | |
2472 | [ZEBRA_IPSET_CREATE] = zread_ipset, | |
2473 | [ZEBRA_IPSET_DESTROY] = zread_ipset, | |
2474 | [ZEBRA_IPSET_ENTRY_ADD] = zread_ipset_entry, | |
2475 | [ZEBRA_IPSET_ENTRY_DELETE] = zread_ipset_entry, | |
2476 | [ZEBRA_IPTABLE_ADD] = zread_iptable, | |
2477 | [ZEBRA_IPTABLE_DELETE] = zread_iptable, | |
fbac9605 | 2478 | [ZEBRA_VXLAN_FLOOD_CONTROL] = zebra_vxlan_flood_control, |
bf094f69 QY |
2479 | }; |
2480 | ||
727c9b99 QY |
2481 | #if defined(HANDLE_ZAPI_FUZZING) |
2482 | extern struct zebra_privs_t zserv_privs; | |
2483 | ||
2484 | static void zserv_write_incoming(struct stream *orig, uint16_t command) | |
2485 | { | |
2486 | char fname[MAXPATHLEN]; | |
2487 | struct stream *copy; | |
2488 | int fd = -1; | |
2489 | ||
2490 | copy = stream_dup(orig); | |
2491 | stream_set_getp(copy, 0); | |
2492 | ||
727c9b99 | 2493 | snprintf(fname, MAXPATHLEN, "%s/%u", DAEMON_VTY_DIR, command); |
6bb30c2c DL |
2494 | |
2495 | frr_elevate_privs(&zserv_privs) { | |
2496 | fd = open(fname, O_CREAT | O_WRONLY | O_EXCL, 0644); | |
2497 | } | |
727c9b99 QY |
2498 | stream_flush(copy, fd); |
2499 | close(fd); | |
727c9b99 QY |
2500 | stream_free(copy); |
2501 | } | |
2502 | #endif | |
2503 | ||
904e0d88 | 2504 | void zserv_handle_commands(struct zserv *client, struct stream *msg) |
bf094f69 | 2505 | { |
904e0d88 QY |
2506 | struct zmsghdr hdr; |
2507 | struct zebra_vrf *zvrf; | |
2508 | ||
2509 | zapi_parse_header(msg, &hdr); | |
bf094f69 | 2510 | |
727c9b99 QY |
2511 | #if defined(HANDLE_ZAPI_FUZZING) |
2512 | zserv_write_incoming(msg, hdr.command); | |
2513 | #endif | |
2514 | ||
904e0d88 QY |
2515 | hdr.length -= ZEBRA_HEADER_SIZE; |
2516 | ||
2517 | /* lookup vrf */ | |
2518 | zvrf = zebra_vrf_lookup_by_id(hdr.vrf_id); | |
2519 | if (!zvrf) { | |
2520 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
9df414fe QY |
2521 | zlog_debug("ZAPI message specifies unknown VRF: %d", |
2522 | hdr.vrf_id); | |
904e0d88 QY |
2523 | return; |
2524 | } | |
2525 | ||
aa360de7 | 2526 | if (hdr.command >= array_size(zserv_handlers) |
904e0d88 QY |
2527 | || zserv_handlers[hdr.command] == NULL) |
2528 | zlog_info("Zebra received unknown command %d", hdr.command); | |
2529 | else | |
2530 | zserv_handlers[hdr.command](client, &hdr, msg, zvrf); | |
bf094f69 | 2531 | } |