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718e3744 | 1 | /* Zebra daemon server routine. |
2 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | * Boston, MA 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "prefix.h" | |
25 | #include "command.h" | |
26 | #include "if.h" | |
27 | #include "thread.h" | |
28 | #include "stream.h" | |
29 | #include "memory.h" | |
4a1ab8e4 | 30 | #include "zebra_memory.h" |
718e3744 | 31 | #include "table.h" |
32 | #include "rib.h" | |
33 | #include "network.h" | |
34 | #include "sockunion.h" | |
35 | #include "log.h" | |
36 | #include "zclient.h" | |
edd7c245 | 37 | #include "privs.h" |
719e9741 | 38 | #include "network.h" |
39 | #include "buffer.h" | |
fb018d25 | 40 | #include "nexthop.h" |
78104b9b | 41 | #include "vrf.h" |
718e3744 | 42 | |
43 | #include "zebra/zserv.h" | |
7c551956 DS |
44 | #include "zebra/zebra_ns.h" |
45 | #include "zebra/zebra_vrf.h" | |
18a6dce6 | 46 | #include "zebra/router-id.h" |
718e3744 | 47 | #include "zebra/redistribute.h" |
48 | #include "zebra/debug.h" | |
49 | #include "zebra/ipforward.h" | |
fb018d25 | 50 | #include "zebra/zebra_rnh.h" |
5c610faf | 51 | #include "zebra/rt_netlink.h" |
88177fe3 DS |
52 | #include "zebra/interface.h" |
53 | #include "zebra/zebra_ptm.h" | |
4a04e5f7 | 54 | #include "zebra/rtadv.h" |
ce549947 | 55 | #include "zebra/zebra_mpls.h" |
518acd6f | 56 | #include "zebra/zebra_fpm.h" |
e3be0432 | 57 | #include "zebra/zebra_mroute.h" |
fea12efb | 58 | #include "zebra/label_manager.h" |
6b0655a2 | 59 | |
718e3744 | 60 | /* Event list of zebra. */ |
61 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
62 | ||
b9df2d25 | 63 | static void zebra_event (enum event event, int sock, struct zserv *client); |
ccf3557b | 64 | |
edd7c245 | 65 | extern struct zebra_privs_t zserv_privs; |
6b0655a2 | 66 | |
719e9741 | 67 | static void zebra_client_close (struct zserv *client); |
ccf3557b | 68 | |
719e9741 | 69 | static int |
70 | zserv_delayed_close(struct thread *thread) | |
ccf3557b | 71 | { |
719e9741 | 72 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 73 | |
719e9741 | 74 | client->t_suicide = NULL; |
75 | zebra_client_close(client); | |
ccf3557b | 76 | return 0; |
77 | } | |
78 | ||
719e9741 | 79 | static int |
80 | zserv_flush_data(struct thread *thread) | |
ccf3557b | 81 | { |
719e9741 | 82 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 83 | |
719e9741 | 84 | client->t_write = NULL; |
85 | if (client->t_suicide) | |
ccf3557b | 86 | { |
719e9741 | 87 | zebra_client_close(client); |
88 | return -1; | |
ccf3557b | 89 | } |
719e9741 | 90 | switch (buffer_flush_available(client->wb, client->sock)) |
ccf3557b | 91 | { |
719e9741 | 92 | case BUFFER_ERROR: |
93 | zlog_warn("%s: buffer_flush_available failed on zserv client fd %d, " | |
94 | "closing", __func__, client->sock); | |
95 | zebra_client_close(client); | |
4b21f878 | 96 | client = NULL; |
719e9741 | 97 | break; |
98 | case BUFFER_PENDING: | |
99 | client->t_write = thread_add_write(zebrad.master, zserv_flush_data, | |
100 | client, client->sock); | |
101 | break; | |
102 | case BUFFER_EMPTY: | |
103 | break; | |
ccf3557b | 104 | } |
04b02fda | 105 | |
4b21f878 DS |
106 | if (client) |
107 | client->last_write_time = monotime(NULL); | |
719e9741 | 108 | return 0; |
109 | } | |
ccf3557b | 110 | |
fb018d25 | 111 | int |
719e9741 | 112 | zebra_server_send_message(struct zserv *client) |
113 | { | |
114 | if (client->t_suicide) | |
115 | return -1; | |
04b02fda | 116 | |
fea12efb | 117 | if (client->is_synchronous) |
118 | return 0; | |
119 | ||
04b02fda | 120 | stream_set_getp(client->obuf, 0); |
80ab3edf | 121 | client->last_write_cmd = stream_getw_from(client->obuf, 6); |
719e9741 | 122 | switch (buffer_write(client->wb, client->sock, STREAM_DATA(client->obuf), |
123 | stream_get_endp(client->obuf))) | |
124 | { | |
125 | case BUFFER_ERROR: | |
126 | zlog_warn("%s: buffer_write failed to zserv client fd %d, closing", | |
127 | __func__, client->sock); | |
128 | /* Schedule a delayed close since many of the functions that call this | |
129 | one do not check the return code. They do not allow for the | |
130 | possibility that an I/O error may have caused the client to be | |
131 | deleted. */ | |
132 | client->t_suicide = thread_add_event(zebrad.master, zserv_delayed_close, | |
133 | client, 0); | |
134 | return -1; | |
719e9741 | 135 | case BUFFER_EMPTY: |
136 | THREAD_OFF(client->t_write); | |
137 | break; | |
138 | case BUFFER_PENDING: | |
139 | THREAD_WRITE_ON(zebrad.master, client->t_write, | |
140 | zserv_flush_data, client, client->sock); | |
141 | break; | |
142 | } | |
04b02fda | 143 | |
cf672a86 | 144 | client->last_write_time = monotime(NULL); |
ccf3557b | 145 | return 0; |
146 | } | |
147 | ||
fb018d25 | 148 | void |
7076bb2f | 149 | zserv_create_header (struct stream *s, uint16_t cmd, vrf_id_t vrf_id) |
c1b9800a | 150 | { |
151 | /* length placeholder, caller can update */ | |
152 | stream_putw (s, ZEBRA_HEADER_SIZE); | |
153 | stream_putc (s, ZEBRA_HEADER_MARKER); | |
154 | stream_putc (s, ZSERV_VERSION); | |
7076bb2f | 155 | stream_putw (s, vrf_id); |
c1b9800a | 156 | stream_putw (s, cmd); |
157 | } | |
158 | ||
51d4ef83 JB |
159 | static void |
160 | zserv_encode_interface (struct stream *s, struct interface *ifp) | |
161 | { | |
162 | /* Interface information. */ | |
163 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
164 | stream_putl (s, ifp->ifindex); | |
165 | stream_putc (s, ifp->status); | |
166 | stream_putq (s, ifp->flags); | |
244c1cdc DS |
167 | stream_putc (s, ifp->ptm_enable); |
168 | stream_putc (s, ifp->ptm_status); | |
51d4ef83 JB |
169 | stream_putl (s, ifp->metric); |
170 | stream_putl (s, ifp->mtu); | |
171 | stream_putl (s, ifp->mtu6); | |
172 | stream_putl (s, ifp->bandwidth); | |
8ccc7e80 | 173 | stream_putl (s, ifp->ll_type); |
51d4ef83 JB |
174 | stream_putl (s, ifp->hw_addr_len); |
175 | if (ifp->hw_addr_len) | |
176 | stream_put (s, ifp->hw_addr, ifp->hw_addr_len); | |
51d4ef83 | 177 | |
16f1b9ee OD |
178 | /* Then, Traffic Engineering parameters if any */ |
179 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) | |
180 | { | |
181 | stream_putc (s, 1); | |
182 | zebra_interface_link_params_write (s, ifp); | |
183 | } | |
184 | else | |
185 | stream_putc (s, 0); | |
186 | ||
51d4ef83 JB |
187 | /* Write packet size. */ |
188 | stream_putw_at (s, 0, stream_get_endp (s)); | |
189 | } | |
190 | ||
12f6fb97 | 191 | static void |
9e1bf607 | 192 | zserv_encode_vrf (struct stream *s, struct zebra_vrf *zvrf) |
12f6fb97 DS |
193 | { |
194 | /* Interface information. */ | |
661512bf | 195 | stream_put (s, zvrf_name (zvrf), VRF_NAMSIZ); |
12f6fb97 DS |
196 | |
197 | /* Write packet size. */ | |
198 | stream_putw_at (s, 0, stream_get_endp (s)); | |
199 | } | |
200 | ||
718e3744 | 201 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 202 | /* |
203 | * This function is called in the following situations: | |
204 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
205 | * from the client. | |
206 | * - at startup, when zebra figures out the available interfaces | |
207 | * - when an interface is added (where support for | |
208 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
209 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
210 | * received) | |
211 | */ | |
718e3744 | 212 | int |
213 | zsend_interface_add (struct zserv *client, struct interface *ifp) | |
214 | { | |
215 | struct stream *s; | |
216 | ||
718e3744 | 217 | s = client->obuf; |
218 | stream_reset (s); | |
219 | ||
7076bb2f | 220 | zserv_create_header (s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); |
51d4ef83 | 221 | zserv_encode_interface (s, ifp); |
718e3744 | 222 | |
04b02fda | 223 | client->ifadd_cnt++; |
719e9741 | 224 | return zebra_server_send_message(client); |
718e3744 | 225 | } |
226 | ||
227 | /* Interface deletion from zebra daemon. */ | |
228 | int | |
229 | zsend_interface_delete (struct zserv *client, struct interface *ifp) | |
230 | { | |
231 | struct stream *s; | |
232 | ||
718e3744 | 233 | s = client->obuf; |
234 | stream_reset (s); | |
718e3744 | 235 | |
7076bb2f | 236 | zserv_create_header (s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); |
51d4ef83 | 237 | zserv_encode_interface (s, ifp); |
718e3744 | 238 | |
04b02fda | 239 | client->ifdel_cnt++; |
719e9741 | 240 | return zebra_server_send_message (client); |
718e3744 | 241 | } |
242 | ||
12f6fb97 | 243 | int |
9e1bf607 | 244 | zsend_vrf_add (struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 DS |
245 | { |
246 | struct stream *s; | |
247 | ||
248 | s = client->obuf; | |
249 | stream_reset (s); | |
250 | ||
661512bf | 251 | zserv_create_header (s, ZEBRA_VRF_ADD, zvrf_id (zvrf)); |
9e1bf607 | 252 | zserv_encode_vrf (s, zvrf); |
12f6fb97 DS |
253 | |
254 | client->vrfadd_cnt++; | |
255 | return zebra_server_send_message(client); | |
256 | } | |
257 | ||
258 | /* VRF deletion from zebra daemon. */ | |
259 | int | |
9e1bf607 | 260 | zsend_vrf_delete (struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 DS |
261 | { |
262 | struct stream *s; | |
263 | ||
264 | s = client->obuf; | |
265 | stream_reset (s); | |
266 | ||
661512bf | 267 | zserv_create_header (s, ZEBRA_VRF_DELETE, zvrf_id (zvrf)); |
9e1bf607 | 268 | zserv_encode_vrf (s, zvrf); |
12f6fb97 DS |
269 | |
270 | client->vrfdel_cnt++; | |
271 | return zebra_server_send_message (client); | |
272 | } | |
273 | ||
16f1b9ee OD |
274 | int |
275 | zsend_interface_link_params (struct zserv *client, struct interface *ifp) | |
276 | { | |
277 | struct stream *s; | |
278 | ||
279 | /* Check this client need interface information. */ | |
280 | if (! client->ifinfo) | |
281 | return 0; | |
282 | ||
283 | if (!ifp->link_params) | |
284 | return 0; | |
285 | s = client->obuf; | |
286 | stream_reset (s); | |
287 | ||
288 | zserv_create_header (s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); | |
289 | ||
290 | /* Add Interface Index */ | |
291 | stream_putl (s, ifp->ifindex); | |
292 | ||
293 | /* Then TE Link Parameters */ | |
294 | if (zebra_interface_link_params_write (s, ifp) == 0) | |
295 | return 0; | |
296 | ||
297 | /* Write packet size. */ | |
298 | stream_putw_at (s, 0, stream_get_endp (s)); | |
299 | ||
300 | return zebra_server_send_message (client); | |
301 | } | |
302 | ||
b9df2d25 | 303 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
304 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
305 | * | |
306 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
307 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
308 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
309 | * sent from zebra to the client | |
310 | * - redistribute new address info to all clients in the following situations | |
311 | * - at startup, when zebra figures out the available interfaces | |
312 | * - when an interface is added (where support for | |
313 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
314 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
315 | * received) | |
316 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
317 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
318 | * - when an RTM_NEWADDR message is received from the kernel, | |
319 | * | |
320 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
321 | * | |
322 | * zsend_interface_address(DELETE) | |
323 | * ^ | |
324 | * | | |
325 | * zebra_interface_address_delete_update | |
326 | * ^ ^ ^ | |
6eb8827d | 327 | * | | if_delete_update |
328 | * | | | |
b9df2d25 | 329 | * ip_address_uninstall connected_delete_ipv4 |
330 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
331 | * ^ ^ | |
332 | * | | | |
333 | * | RTM_NEWADDR on routing/netlink socket | |
334 | * | | |
335 | * vty commands: | |
336 | * "no ip address A.B.C.D/M [label LINE]" | |
337 | * "no ip address A.B.C.D/M secondary" | |
338 | * ["no ipv6 address X:X::X:X/M"] | |
339 | * | |
340 | */ | |
718e3744 | 341 | int |
b9df2d25 | 342 | zsend_interface_address (int cmd, struct zserv *client, |
343 | struct interface *ifp, struct connected *ifc) | |
718e3744 | 344 | { |
345 | int blen; | |
346 | struct stream *s; | |
347 | struct prefix *p; | |
348 | ||
718e3744 | 349 | s = client->obuf; |
350 | stream_reset (s); | |
c1b9800a | 351 | |
7076bb2f | 352 | zserv_create_header (s, cmd, ifp->vrf_id); |
718e3744 | 353 | stream_putl (s, ifp->ifindex); |
354 | ||
355 | /* Interface address flag. */ | |
356 | stream_putc (s, ifc->flags); | |
357 | ||
358 | /* Prefix information. */ | |
359 | p = ifc->address; | |
360 | stream_putc (s, p->family); | |
361 | blen = prefix_blen (p); | |
362 | stream_put (s, &p->u.prefix, blen); | |
b9df2d25 | 363 | |
364 | /* | |
365 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
366 | * but zebra_interface_address_delete_read() in the gnu version | |
367 | * expects to find it | |
368 | */ | |
718e3744 | 369 | stream_putc (s, p->prefixlen); |
370 | ||
371 | /* Destination. */ | |
372 | p = ifc->destination; | |
373 | if (p) | |
374 | stream_put (s, &p->u.prefix, blen); | |
375 | else | |
376 | stream_put (s, NULL, blen); | |
377 | ||
378 | /* Write packet size. */ | |
379 | stream_putw_at (s, 0, stream_get_endp (s)); | |
380 | ||
04b02fda | 381 | client->connected_rt_add_cnt++; |
719e9741 | 382 | return zebra_server_send_message(client); |
718e3744 | 383 | } |
384 | ||
a80beece DS |
385 | static int |
386 | zsend_interface_nbr_address (int cmd, struct zserv *client, | |
387 | struct interface *ifp, struct nbr_connected *ifc) | |
388 | { | |
389 | int blen; | |
390 | struct stream *s; | |
391 | struct prefix *p; | |
392 | ||
a80beece DS |
393 | s = client->obuf; |
394 | stream_reset (s); | |
395 | ||
7076bb2f | 396 | zserv_create_header (s, cmd, ifp->vrf_id); |
a80beece DS |
397 | stream_putl (s, ifp->ifindex); |
398 | ||
399 | /* Prefix information. */ | |
400 | p = ifc->address; | |
401 | stream_putc (s, p->family); | |
402 | blen = prefix_blen (p); | |
403 | stream_put (s, &p->u.prefix, blen); | |
404 | ||
405 | /* | |
406 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
407 | * but zebra_interface_address_delete_read() in the gnu version | |
408 | * expects to find it | |
409 | */ | |
410 | stream_putc (s, p->prefixlen); | |
411 | ||
412 | /* Write packet size. */ | |
413 | stream_putw_at (s, 0, stream_get_endp (s)); | |
414 | ||
415 | return zebra_server_send_message(client); | |
416 | } | |
417 | ||
418 | /* Interface address addition. */ | |
419 | static void | |
420 | zebra_interface_nbr_address_add_update (struct interface *ifp, | |
421 | struct nbr_connected *ifc) | |
422 | { | |
423 | struct listnode *node, *nnode; | |
424 | struct zserv *client; | |
425 | struct prefix *p; | |
426 | ||
427 | if (IS_ZEBRA_DEBUG_EVENT) | |
428 | { | |
429 | char buf[INET6_ADDRSTRLEN]; | |
430 | ||
431 | p = ifc->address; | |
432 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
433 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
434 | p->prefixlen, ifc->ifp->name); | |
435 | } | |
436 | ||
437 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
4fe51714 | 438 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, ifp, ifc); |
a80beece DS |
439 | } |
440 | ||
441 | /* Interface address deletion. */ | |
442 | static void | |
443 | zebra_interface_nbr_address_delete_update (struct interface *ifp, | |
444 | struct nbr_connected *ifc) | |
445 | { | |
446 | struct listnode *node, *nnode; | |
447 | struct zserv *client; | |
448 | struct prefix *p; | |
449 | ||
450 | if (IS_ZEBRA_DEBUG_EVENT) | |
451 | { | |
452 | char buf[INET6_ADDRSTRLEN]; | |
453 | ||
454 | p = ifc->address; | |
455 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
456 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
457 | p->prefixlen, ifc->ifp->name); | |
458 | } | |
459 | ||
460 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
4fe51714 | 461 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, client, ifp, ifc); |
a80beece DS |
462 | } |
463 | ||
c8e264b6 | 464 | /* Send addresses on interface to client */ |
465 | int | |
466 | zsend_interface_addresses (struct zserv *client, struct interface *ifp) | |
467 | { | |
468 | struct listnode *cnode, *cnnode; | |
469 | struct connected *c; | |
470 | struct nbr_connected *nc; | |
471 | ||
472 | /* Send interface addresses. */ | |
473 | for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, c)) | |
474 | { | |
475 | if (!CHECK_FLAG (c->conf, ZEBRA_IFC_REAL)) | |
476 | continue; | |
477 | ||
478 | if (zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
479 | ifp, c) < 0) | |
480 | return -1; | |
481 | } | |
482 | ||
483 | /* Send interface neighbors. */ | |
484 | for (ALL_LIST_ELEMENTS (ifp->nbr_connected, cnode, cnnode, nc)) | |
485 | { | |
486 | if (zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
487 | client, ifp, nc) < 0) | |
488 | return -1; | |
489 | } | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | /* Notify client about interface moving from one VRF to another. | |
495 | * Whether client is interested in old and new VRF is checked by caller. | |
496 | */ | |
497 | int | |
498 | zsend_interface_vrf_update (struct zserv *client, struct interface *ifp, | |
499 | vrf_id_t vrf_id) | |
500 | { | |
501 | struct stream *s; | |
502 | ||
503 | s = client->obuf; | |
504 | stream_reset (s); | |
505 | ||
506 | zserv_create_header (s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); | |
507 | ||
508 | /* Fill in the ifIndex of the interface and its new VRF (id) */ | |
509 | stream_putl (s, ifp->ifindex); | |
510 | stream_putw (s, vrf_id); | |
511 | ||
512 | /* Write packet size. */ | |
513 | stream_putw_at (s, 0, stream_get_endp (s)); | |
514 | ||
515 | client->if_vrfchg_cnt++; | |
516 | return zebra_server_send_message(client); | |
517 | } | |
518 | ||
1d20ccf3 | 519 | /* Add new nbr connected IPv6 address */ |
a80beece | 520 | void |
1d20ccf3 | 521 | nbr_connected_add_ipv6 (struct interface *ifp, struct in6_addr *address) |
a80beece DS |
522 | { |
523 | struct nbr_connected *ifc; | |
524 | struct prefix p; | |
525 | ||
526 | p.family = AF_INET6; | |
527 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
1d20ccf3 | 528 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
a80beece DS |
529 | |
530 | if (!(ifc = listnode_head(ifp->nbr_connected))) | |
531 | { | |
532 | /* new addition */ | |
533 | ifc = nbr_connected_new (); | |
534 | ifc->address = prefix_new(); | |
535 | ifc->ifp = ifp; | |
536 | listnode_add (ifp->nbr_connected, ifc); | |
537 | } | |
538 | ||
539 | prefix_copy(ifc->address, &p); | |
540 | ||
541 | zebra_interface_nbr_address_add_update (ifp, ifc); | |
5c610faf DS |
542 | |
543 | if_nbr_ipv6ll_to_ipv4ll_neigh_update (ifp, address, 1); | |
a80beece DS |
544 | } |
545 | ||
546 | void | |
1d20ccf3 | 547 | nbr_connected_delete_ipv6 (struct interface *ifp, struct in6_addr *address) |
a80beece DS |
548 | { |
549 | struct nbr_connected *ifc; | |
550 | struct prefix p; | |
551 | ||
552 | p.family = AF_INET6; | |
553 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
1d20ccf3 | 554 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
a80beece DS |
555 | |
556 | ifc = nbr_connected_check(ifp, &p); | |
557 | if (!ifc) | |
558 | return; | |
559 | ||
560 | listnode_delete (ifp->nbr_connected, ifc); | |
561 | ||
562 | zebra_interface_nbr_address_delete_update (ifp, ifc); | |
563 | ||
5c610faf DS |
564 | if_nbr_ipv6ll_to_ipv4ll_neigh_update (ifp, address, 0); |
565 | ||
a80beece DS |
566 | nbr_connected_free (ifc); |
567 | } | |
568 | ||
b9df2d25 | 569 | /* |
570 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
571 | * ZEBRA_INTERFACE_DOWN. | |
572 | * | |
573 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
574 | * the clients in one of 2 situations: | |
575 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
576 | * - a vty command modifying the bandwidth of an interface is received. | |
577 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
578 | */ | |
718e3744 | 579 | int |
b9df2d25 | 580 | zsend_interface_update (int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 581 | { |
582 | struct stream *s; | |
583 | ||
718e3744 | 584 | s = client->obuf; |
585 | stream_reset (s); | |
586 | ||
7076bb2f | 587 | zserv_create_header (s, cmd, ifp->vrf_id); |
51d4ef83 | 588 | zserv_encode_interface (s, ifp); |
718e3744 | 589 | |
04b02fda DS |
590 | if (cmd == ZEBRA_INTERFACE_UP) |
591 | client->ifup_cnt++; | |
592 | else | |
593 | client->ifdown_cnt++; | |
594 | ||
719e9741 | 595 | return zebra_server_send_message(client); |
718e3744 | 596 | } |
597 | ||
b9df2d25 | 598 | /* |
5048fe14 | 599 | * This is the new function to announce and withdraw redistributed routes, used |
600 | * by Zebra. This is the old zsend_route_multipath() function. That function | |
601 | * was duplicating code to send a lot of information that was essentially thrown | |
602 | * away or ignored by the receiver. This is the leaner function that is not a | |
603 | * duplicate of the zapi_ipv4_route_add/del. | |
b9df2d25 | 604 | * |
5048fe14 | 605 | * The primary difference is that this function merely sends a single NH instead of |
606 | * all the nexthops. | |
b9df2d25 | 607 | */ |
718e3744 | 608 | int |
9c6060d4 | 609 | zsend_redistribute_route (int add, struct zserv *client, struct prefix *p, |
05737783 | 610 | struct prefix *src_p, struct rib *rib) |
718e3744 | 611 | { |
9c6060d4 RW |
612 | afi_t afi; |
613 | int cmd; | |
718e3744 | 614 | int psize; |
615 | struct stream *s; | |
616 | struct nexthop *nexthop; | |
1dcb5172 | 617 | unsigned long nhnummark = 0, messmark = 0; |
b9df2d25 | 618 | int nhnum = 0; |
1dcb5172 | 619 | u_char zapi_flags = 0; |
5048fe14 | 620 | struct nexthop dummy_nh; |
621 | ||
9c6060d4 RW |
622 | afi = family2afi (p->family); |
623 | if (add) | |
624 | { | |
625 | switch (afi) | |
626 | { | |
627 | case AFI_IP: | |
628 | cmd = ZEBRA_REDISTRIBUTE_IPV4_ADD; | |
629 | client->redist_v4_add_cnt++; | |
630 | break; | |
631 | case AFI_IP6: | |
632 | cmd = ZEBRA_REDISTRIBUTE_IPV6_ADD; | |
633 | client->redist_v6_add_cnt++; | |
634 | break; | |
635 | default: | |
636 | return -1; | |
637 | } | |
638 | } | |
639 | else | |
640 | { | |
641 | switch (afi) | |
642 | { | |
643 | case AFI_IP: | |
644 | cmd = ZEBRA_REDISTRIBUTE_IPV4_DEL; | |
645 | client->redist_v4_del_cnt++; | |
646 | break; | |
647 | case AFI_IP6: | |
648 | cmd = ZEBRA_REDISTRIBUTE_IPV6_DEL; | |
649 | client->redist_v6_del_cnt++; | |
650 | break; | |
651 | default: | |
652 | return -1; | |
653 | } | |
654 | } | |
7076bb2f | 655 | |
718e3744 | 656 | s = client->obuf; |
657 | stream_reset (s); | |
5048fe14 | 658 | memset(&dummy_nh, 0, sizeof(struct nexthop)); |
659 | ||
7076bb2f FL |
660 | zserv_create_header (s, cmd, rib->vrf_id); |
661 | ||
c1b9800a | 662 | /* Put type and nexthop. */ |
718e3744 | 663 | stream_putc (s, rib->type); |
7c8ff89e | 664 | stream_putw (s, rib->instance); |
0fc452dc | 665 | stream_putl (s, rib->flags); |
5048fe14 | 666 | |
1dcb5172 | 667 | /* marker for message flags field */ |
668 | messmark = stream_get_endp (s); | |
669 | stream_putc (s, 0); | |
718e3744 | 670 | |
671 | /* Prefix. */ | |
672 | psize = PSIZE (p->prefixlen); | |
673 | stream_putc (s, p->prefixlen); | |
b9df2d25 | 674 | stream_write (s, (u_char *) & p->u.prefix, psize); |
675 | ||
05737783 CF |
676 | if (src_p) |
677 | { | |
678 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_SRCPFX); | |
679 | psize = PSIZE (src_p->prefixlen); | |
680 | stream_putc (s, src_p->prefixlen); | |
681 | stream_write (s, (u_char *) & src_p->u.prefix, psize); | |
682 | } | |
683 | ||
718e3744 | 684 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
685 | { | |
5048fe14 | 686 | /* We don't send any nexthops when there's a multipath */ |
eac6e3f0 | 687 | if (rib->nexthop_active_num > 1 && client->proto != ZEBRA_ROUTE_LDP) |
5048fe14 | 688 | { |
689 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
690 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
691 | ||
692 | stream_putc(s, 1); | |
693 | if (p->family == AF_INET) | |
694 | { | |
695 | stream_put_in_addr (s, &dummy_nh.gate.ipv4); | |
696 | } | |
697 | else if (p->family == AF_INET6) | |
698 | { | |
699 | stream_write (s, (u_char *) &dummy_nh.gate.ipv6, 16); | |
700 | } | |
701 | else | |
702 | { | |
703 | /* We don't handle anything else now, abort */ | |
704 | zlog_err("%s: Unable to redistribute route of unknown family, %d\n", | |
705 | __func__, p->family); | |
706 | return -1; | |
707 | } | |
708 | stream_putc (s, 1); | |
709 | stream_putl (s, 0); /* dummy ifindex */ | |
710 | break; | |
711 | } | |
712 | ||
446bb95e | 713 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) |
b9df2d25 | 714 | { |
1dcb5172 | 715 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); |
716 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
1dcb5172 | 717 | if (nhnummark == 0) |
718 | { | |
719 | nhnummark = stream_get_endp (s); | |
720 | stream_putc (s, 1); /* placeholder */ | |
721 | } | |
b9df2d25 | 722 | nhnum++; |
723 | ||
724 | switch(nexthop->type) | |
725 | { | |
726 | case NEXTHOP_TYPE_IPV4: | |
727 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
728 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
729 | break; | |
b9df2d25 | 730 | case NEXTHOP_TYPE_IPV6: |
731 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
5048fe14 | 732 | /* Only BGP supports IPv4 prefix with IPv6 NH, so kill this */ |
733 | if (p->family == AF_INET) | |
734 | stream_put_in_addr(s, &dummy_nh.gate.ipv4); | |
735 | else | |
736 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); | |
b9df2d25 | 737 | break; |
b9df2d25 | 738 | default: |
5048fe14 | 739 | if (cmd == ZEBRA_REDISTRIBUTE_IPV4_ADD |
740 | || cmd == ZEBRA_REDISTRIBUTE_IPV4_DEL) | |
b9df2d25 | 741 | { |
742 | struct in_addr empty; | |
44983cf8 | 743 | memset (&empty, 0, sizeof (struct in_addr)); |
b9df2d25 | 744 | stream_write (s, (u_char *) &empty, IPV4_MAX_BYTELEN); |
745 | } | |
746 | else | |
747 | { | |
748 | struct in6_addr empty; | |
749 | memset (&empty, 0, sizeof (struct in6_addr)); | |
750 | stream_write (s, (u_char *) &empty, IPV6_MAX_BYTELEN); | |
751 | } | |
752 | } | |
753 | ||
754 | /* Interface index. */ | |
755 | stream_putc (s, 1); | |
756 | stream_putl (s, nexthop->ifindex); | |
757 | ||
eac6e3f0 RW |
758 | /* ldpd needs all nexthops */ |
759 | if (client->proto != ZEBRA_ROUTE_LDP) | |
a16d0e7b | 760 | break; |
b9df2d25 | 761 | } |
718e3744 | 762 | } |
763 | ||
7fe041ac | 764 | /* Distance */ |
a16d0e7b RW |
765 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_DISTANCE); |
766 | stream_putc (s, rib->distance); | |
7fe041ac | 767 | |
718e3744 | 768 | /* Metric */ |
a16d0e7b RW |
769 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_METRIC); |
770 | stream_putl (s, rib->metric); | |
0d9551dc | 771 | |
7fe041ac | 772 | /* Tag */ |
a16d0e7b RW |
773 | if (rib->tag) |
774 | { | |
775 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
dc9ffce8 | 776 | stream_putl(s, rib->tag); |
a16d0e7b | 777 | } |
5048fe14 | 778 | |
7fe041ac | 779 | /* MTU */ |
a16d0e7b RW |
780 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_MTU); |
781 | stream_putl (s, rib->mtu); | |
5048fe14 | 782 | |
1dcb5172 | 783 | /* write real message flags value */ |
784 | stream_putc_at (s, messmark, zapi_flags); | |
5048fe14 | 785 | |
b9df2d25 | 786 | /* Write next-hop number */ |
787 | if (nhnummark) | |
c1eaa442 | 788 | stream_putc_at (s, nhnummark, nhnum); |
5048fe14 | 789 | |
718e3744 | 790 | /* Write packet size. */ |
791 | stream_putw_at (s, 0, stream_get_endp (s)); | |
792 | ||
719e9741 | 793 | return zebra_server_send_message(client); |
718e3744 | 794 | } |
795 | ||
10fbd59a DS |
796 | static int |
797 | zsend_write_nexthop (struct stream *s, struct nexthop *nexthop) | |
798 | { | |
799 | stream_putc (s, nexthop->type); | |
800 | switch (nexthop->type) | |
801 | { | |
802 | case NEXTHOP_TYPE_IPV4: | |
10fbd59a DS |
803 | case NEXTHOP_TYPE_IPV4_IFINDEX: |
804 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
805 | stream_putl (s, nexthop->ifindex); | |
806 | break; | |
807 | case NEXTHOP_TYPE_IPV6: | |
808 | stream_put (s, &nexthop->gate.ipv6, 16); | |
809 | break; | |
810 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
811 | stream_put (s, &nexthop->gate.ipv6, 16); | |
812 | stream_putl (s, nexthop->ifindex); | |
813 | break; | |
814 | case NEXTHOP_TYPE_IFINDEX: | |
815 | stream_putl (s, nexthop->ifindex); | |
816 | break; | |
817 | default: | |
818 | /* do nothing */ | |
819 | break; | |
820 | } | |
821 | return 1; | |
822 | } | |
823 | ||
fb018d25 DS |
824 | /* Nexthop register */ |
825 | static int | |
078430f6 | 826 | zserv_rnh_register (struct zserv *client, int sock, u_short length, |
d651649e | 827 | rnh_type_t type, struct zebra_vrf *zvrf) |
fb018d25 DS |
828 | { |
829 | struct rnh *rnh; | |
830 | struct stream *s; | |
831 | struct prefix p; | |
832 | u_short l = 0; | |
078430f6 | 833 | u_char flags = 0; |
fb018d25 DS |
834 | |
835 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 DS |
836 | zlog_debug("rnh_register msg from client %s: length=%d, type=%s\n", |
837 | zebra_route_string(client->proto), length, | |
838 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route"); | |
fb018d25 DS |
839 | |
840 | s = client->ibuf; | |
841 | ||
cf672a86 | 842 | client->nh_reg_time = monotime(NULL); |
078430f6 | 843 | |
fb018d25 DS |
844 | while (l < length) |
845 | { | |
078430f6 | 846 | flags = stream_getc(s); |
fb018d25 DS |
847 | p.family = stream_getw(s); |
848 | p.prefixlen = stream_getc(s); | |
fc9a856f | 849 | l += 4; |
078430f6 DS |
850 | if (p.family == AF_INET) |
851 | { | |
852 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
853 | l += IPV4_MAX_BYTELEN; | |
854 | } | |
855 | else if (p.family == AF_INET6) | |
856 | { | |
857 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
858 | l += IPV6_MAX_BYTELEN; | |
859 | } | |
860 | else | |
861 | { | |
862 | zlog_err("rnh_register: Received unknown family type %d\n", | |
863 | p.family); | |
864 | return -1; | |
865 | } | |
661512bf | 866 | rnh = zebra_add_rnh(&p, zvrf_id (zvrf), type); |
078430f6 DS |
867 | if (type == RNH_NEXTHOP_TYPE) |
868 | { | |
869 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
870 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
871 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
872 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
873 | } | |
874 | else if (type == RNH_IMPORT_CHECK_TYPE) | |
875 | { | |
876 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
877 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
878 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
879 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
880 | } | |
881 | ||
661512bf | 882 | zebra_add_rnh_client(rnh, client, type, zvrf_id (zvrf)); |
078430f6 | 883 | /* Anything not AF_INET/INET6 has been filtered out above */ |
661512bf | 884 | zebra_evaluate_rnh(zvrf_id (zvrf), p.family, 1, type, &p); |
fb018d25 | 885 | } |
fb018d25 DS |
886 | return 0; |
887 | } | |
888 | ||
889 | /* Nexthop register */ | |
890 | static int | |
078430f6 | 891 | zserv_rnh_unregister (struct zserv *client, int sock, u_short length, |
d651649e | 892 | rnh_type_t type, struct zebra_vrf *zvrf) |
fb018d25 DS |
893 | { |
894 | struct rnh *rnh; | |
895 | struct stream *s; | |
896 | struct prefix p; | |
897 | u_short l = 0; | |
898 | ||
899 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 | 900 | zlog_debug("rnh_unregister msg from client %s: length=%d\n", |
fb018d25 DS |
901 | zebra_route_string(client->proto), length); |
902 | ||
903 | s = client->ibuf; | |
904 | ||
905 | while (l < length) | |
906 | { | |
4e3afb14 | 907 | (void)stream_getc(s); //Connected or not. Not used in this function |
fb018d25 DS |
908 | p.family = stream_getw(s); |
909 | p.prefixlen = stream_getc(s); | |
fc9a856f | 910 | l += 4; |
078430f6 DS |
911 | if (p.family == AF_INET) |
912 | { | |
913 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
914 | l += IPV4_MAX_BYTELEN; | |
915 | } | |
916 | else if (p.family == AF_INET6) | |
917 | { | |
918 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
919 | l += IPV6_MAX_BYTELEN; | |
920 | } | |
921 | else | |
922 | { | |
923 | zlog_err("rnh_register: Received unknown family type %d\n", | |
924 | p.family); | |
925 | return -1; | |
926 | } | |
661512bf | 927 | rnh = zebra_lookup_rnh(&p, zvrf_id (zvrf), type); |
fb018d25 | 928 | if (rnh) |
04b02fda | 929 | { |
cf672a86 | 930 | client->nh_dereg_time = monotime(NULL); |
078430f6 | 931 | zebra_remove_rnh_client(rnh, client, type); |
04b02fda | 932 | } |
fb018d25 DS |
933 | } |
934 | return 0; | |
935 | } | |
936 | ||
6f61a5a3 EM |
937 | /* |
938 | Modified version of zsend_ipv4_nexthop_lookup(): | |
939 | Query unicast rib if nexthop is not found on mrib. | |
940 | Returns both route metric and protocol distance. | |
941 | */ | |
942 | static int | |
4623d897 | 943 | zsend_ipv4_nexthop_lookup_mrib (struct zserv *client, struct in_addr addr, struct rib *rib, struct zebra_vrf *zvrf) |
6f61a5a3 EM |
944 | { |
945 | struct stream *s; | |
6f61a5a3 EM |
946 | unsigned long nump; |
947 | u_char num; | |
948 | struct nexthop *nexthop; | |
949 | ||
6f61a5a3 EM |
950 | /* Get output stream. */ |
951 | s = client->obuf; | |
952 | stream_reset (s); | |
953 | ||
954 | /* Fill in result. */ | |
661512bf | 955 | zserv_create_header (s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id (zvrf)); |
6f61a5a3 EM |
956 | stream_put_in_addr (s, &addr); |
957 | ||
958 | if (rib) | |
959 | { | |
960 | stream_putc (s, rib->distance); | |
961 | stream_putl (s, rib->metric); | |
962 | num = 0; | |
963 | nump = stream_get_endp(s); /* remember position for nexthop_num */ | |
964 | stream_putc (s, 0); /* reserve room for nexthop_num */ | |
965 | /* Only non-recursive routes are elegible to resolve the nexthop we | |
966 | * are looking up. Therefore, we will just iterate over the top | |
967 | * chain of nexthops. */ | |
968 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
446bb95e | 969 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE)) |
10fbd59a | 970 | num += zsend_write_nexthop (s, nexthop); |
6f61a5a3 EM |
971 | |
972 | stream_putc_at (s, nump, num); /* store nexthop_num */ | |
973 | } | |
974 | else | |
975 | { | |
976 | stream_putc (s, 0); /* distance */ | |
977 | stream_putl (s, 0); /* metric */ | |
978 | stream_putc (s, 0); /* nexthop_num */ | |
979 | } | |
980 | ||
981 | stream_putw_at (s, 0, stream_get_endp (s)); | |
982 | ||
983 | return zebra_server_send_message(client); | |
984 | } | |
985 | ||
18a6dce6 | 986 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
987 | int | |
c6ffe645 FL |
988 | zsend_router_id_update (struct zserv *client, struct prefix *p, |
989 | vrf_id_t vrf_id) | |
18a6dce6 | 990 | { |
991 | struct stream *s; | |
992 | int blen; | |
993 | ||
994 | /* Check this client need interface information. */ | |
7076bb2f | 995 | if (! vrf_bitmap_check (client->ridinfo, vrf_id)) |
719e9741 | 996 | return 0; |
18a6dce6 | 997 | |
998 | s = client->obuf; | |
999 | stream_reset (s); | |
1000 | ||
18a6dce6 | 1001 | /* Message type. */ |
7076bb2f | 1002 | zserv_create_header (s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); |
18a6dce6 | 1003 | |
1004 | /* Prefix information. */ | |
1005 | stream_putc (s, p->family); | |
1006 | blen = prefix_blen (p); | |
1007 | stream_put (s, &p->u.prefix, blen); | |
1008 | stream_putc (s, p->prefixlen); | |
1009 | ||
1010 | /* Write packet size. */ | |
1011 | stream_putw_at (s, 0, stream_get_endp (s)); | |
1012 | ||
719e9741 | 1013 | return zebra_server_send_message(client); |
18a6dce6 | 1014 | } |
6b0655a2 | 1015 | |
718e3744 | 1016 | /* Register zebra server interface information. Send current all |
1017 | interface and address information. */ | |
719e9741 | 1018 | static int |
d651649e | 1019 | zread_interface_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1020 | { |
1a1a7065 | 1021 | struct vrf *vrf; |
1eb8ef25 | 1022 | struct listnode *ifnode, *ifnnode; |
718e3744 | 1023 | struct interface *ifp; |
718e3744 | 1024 | |
1025 | /* Interface information is needed. */ | |
661512bf | 1026 | vrf_bitmap_set (client->ifinfo, zvrf_id (zvrf)); |
718e3744 | 1027 | |
1a1a7065 | 1028 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) |
718e3744 | 1029 | { |
1a1a7065 | 1030 | for (ALL_LIST_ELEMENTS (vrf->iflist, ifnode, ifnnode, ifp)) |
4fe51714 DS |
1031 | { |
1032 | /* Skip pseudo interface. */ | |
1033 | if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1034 | continue; | |
718e3744 | 1035 | |
4fe51714 DS |
1036 | if (zsend_interface_add (client, ifp) < 0) |
1037 | return -1; | |
718e3744 | 1038 | |
4fe51714 DS |
1039 | if (zsend_interface_addresses (client, ifp) < 0) |
1040 | return -1; | |
1041 | } | |
718e3744 | 1042 | } |
719e9741 | 1043 | return 0; |
718e3744 | 1044 | } |
1045 | ||
1046 | /* Unregister zebra server interface information. */ | |
719e9741 | 1047 | static int |
d651649e | 1048 | zread_interface_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1049 | { |
661512bf | 1050 | vrf_bitmap_unset (client->ifinfo, zvrf_id (zvrf)); |
719e9741 | 1051 | return 0; |
718e3744 | 1052 | } |
1053 | ||
6878b9db | 1054 | void |
4f87aceb | 1055 | zserv_nexthop_num_warn (const char *caller, const struct prefix *p, const unsigned int nexthop_num) |
6878b9db | 1056 | { |
37fe7731 | 1057 | if (nexthop_num > multipath_num) |
6878b9db | 1058 | { |
4690c7d7 DS |
1059 | char buff[PREFIX2STR_BUFFER]; |
1060 | prefix2str(p, buff, sizeof (buff)); | |
6878b9db | 1061 | zlog_warn("%s: Prefix %s has %d nexthops, but we can only use the first %d", |
37fe7731 | 1062 | caller, buff, nexthop_num, multipath_num); |
6878b9db DS |
1063 | } |
1064 | } | |
1065 | ||
718e3744 | 1066 | /* This function support multiple nexthop. */ |
b9df2d25 | 1067 | /* |
1068 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update rib and | |
1069 | * add kernel route. | |
1070 | */ | |
719e9741 | 1071 | static int |
d651649e | 1072 | zread_ipv4_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1073 | { |
1074 | int i; | |
1075 | struct rib *rib; | |
b4c034b0 | 1076 | struct prefix p; |
718e3744 | 1077 | u_char message; |
1078 | struct in_addr nexthop; | |
1079 | u_char nexthop_num; | |
1080 | u_char nexthop_type; | |
1081 | struct stream *s; | |
b892f1dd | 1082 | ifindex_t ifindex; |
d44ca835 | 1083 | safi_t safi; |
04b02fda | 1084 | int ret; |
718e3744 | 1085 | |
1086 | /* Get input stream. */ | |
1087 | s = client->ibuf; | |
1088 | ||
1089 | /* Allocate new rib. */ | |
4d38fdb4 | 1090 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); |
1091 | ||
718e3744 | 1092 | /* Type, flags, message. */ |
1093 | rib->type = stream_getc (s); | |
7c8ff89e | 1094 | rib->instance = stream_getw (s); |
0fc452dc | 1095 | rib->flags = stream_getl (s); |
b9df2d25 | 1096 | message = stream_getc (s); |
cddf391b | 1097 | safi = stream_getw (s); |
718e3744 | 1098 | rib->uptime = time (NULL); |
1099 | ||
1100 | /* IPv4 prefix. */ | |
1101 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1102 | p.family = AF_INET; | |
1103 | p.prefixlen = stream_getc (s); | |
b4c034b0 | 1104 | stream_get (&p.u.prefix4, s, PSIZE (p.prefixlen)); |
718e3744 | 1105 | |
78104b9b | 1106 | /* VRF ID */ |
661512bf | 1107 | rib->vrf_id = zvrf_id (zvrf); |
78104b9b | 1108 | |
718e3744 | 1109 | /* Nexthop parse. */ |
1110 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1111 | { | |
1112 | nexthop_num = stream_getc (s); | |
6878b9db | 1113 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
718e3744 | 1114 | |
1115 | for (i = 0; i < nexthop_num; i++) | |
1116 | { | |
1117 | nexthop_type = stream_getc (s); | |
1118 | ||
1119 | switch (nexthop_type) | |
1120 | { | |
5b30316e | 1121 | case NEXTHOP_TYPE_IFINDEX: |
718e3744 | 1122 | ifindex = stream_getl (s); |
a399694f | 1123 | rib_nexthop_ifindex_add (rib, ifindex); |
718e3744 | 1124 | break; |
5b30316e | 1125 | case NEXTHOP_TYPE_IPV4: |
718e3744 | 1126 | nexthop.s_addr = stream_get_ipv4 (s); |
a399694f | 1127 | rib_nexthop_ipv4_add (rib, &nexthop, NULL); |
718e3744 | 1128 | break; |
5b30316e | 1129 | case NEXTHOP_TYPE_IPV4_IFINDEX: |
c963c203 JT |
1130 | nexthop.s_addr = stream_get_ipv4 (s); |
1131 | ifindex = stream_getl (s); | |
a399694f | 1132 | rib_nexthop_ipv4_ifindex_add (rib, &nexthop, NULL, ifindex); |
c963c203 | 1133 | break; |
5b30316e | 1134 | case NEXTHOP_TYPE_IPV6: |
9985f83c | 1135 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1136 | break; |
5b30316e | 1137 | case NEXTHOP_TYPE_BLACKHOLE: |
a399694f | 1138 | rib_nexthop_blackhole_add (rib); |
6902c69a SV |
1139 | break; |
1140 | } | |
718e3744 | 1141 | } |
1142 | } | |
1143 | ||
1144 | /* Distance. */ | |
1145 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1146 | rib->distance = stream_getc (s); | |
1147 | ||
1148 | /* Metric. */ | |
1149 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1150 | rib->metric = stream_getl (s); | |
1151 | ||
0d9551dc DS |
1152 | /* Tag */ |
1153 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
dc9ffce8 | 1154 | rib->tag = stream_getl (s); |
0d9551dc DS |
1155 | else |
1156 | rib->tag = 0; | |
1157 | ||
c50ca33a TT |
1158 | if (CHECK_FLAG (message, ZAPI_MESSAGE_MTU)) |
1159 | rib->mtu = stream_getl (s); | |
1160 | else | |
1161 | rib->mtu = 0; | |
1162 | ||
171eee31 | 1163 | /* Table */ |
d651649e | 1164 | rib->table = zvrf->table_id; |
12f6fb97 | 1165 | |
3c7c91d0 | 1166 | ret = rib_add_multipath (AFI_IP, safi, &p, NULL, rib); |
04b02fda DS |
1167 | |
1168 | /* Stats */ | |
1169 | if (ret > 0) | |
1170 | client->v4_route_add_cnt++; | |
1171 | else if (ret < 0) | |
1172 | client->v4_route_upd8_cnt++; | |
719e9741 | 1173 | return 0; |
718e3744 | 1174 | } |
1175 | ||
1176 | /* Zebra server IPv4 prefix delete function. */ | |
719e9741 | 1177 | static int |
d651649e | 1178 | zread_ipv4_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1179 | { |
1180 | int i; | |
1181 | struct stream *s; | |
1182 | struct zapi_ipv4 api; | |
616368ed DS |
1183 | struct in_addr nexthop; |
1184 | union g_addr *nexthop_p; | |
718e3744 | 1185 | unsigned long ifindex; |
616368ed | 1186 | struct prefix p; |
718e3744 | 1187 | u_char nexthop_num; |
1188 | u_char nexthop_type; | |
12f6fb97 | 1189 | u_int32_t table_id; |
12f6fb97 | 1190 | |
718e3744 | 1191 | s = client->ibuf; |
1192 | ifindex = 0; | |
1193 | nexthop.s_addr = 0; | |
6902c69a | 1194 | nexthop_p = NULL; |
718e3744 | 1195 | |
1196 | /* Type, flags, message. */ | |
1197 | api.type = stream_getc (s); | |
7c8ff89e | 1198 | api.instance = stream_getw (s); |
0fc452dc | 1199 | api.flags = stream_getl (s); |
718e3744 | 1200 | api.message = stream_getc (s); |
cddf391b | 1201 | api.safi = stream_getw (s); |
718e3744 | 1202 | |
1203 | /* IPv4 prefix. */ | |
4fdeb6b0 | 1204 | memset (&p, 0, sizeof (struct prefix)); |
718e3744 | 1205 | p.family = AF_INET; |
1206 | p.prefixlen = stream_getc (s); | |
616368ed | 1207 | stream_get (&p.u.prefix4, s, PSIZE (p.prefixlen)); |
718e3744 | 1208 | |
1209 | /* Nexthop, ifindex, distance, metric. */ | |
1210 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1211 | { | |
1212 | nexthop_num = stream_getc (s); | |
1213 | ||
1214 | for (i = 0; i < nexthop_num; i++) | |
1215 | { | |
1216 | nexthop_type = stream_getc (s); | |
1217 | ||
1218 | switch (nexthop_type) | |
1219 | { | |
5b30316e | 1220 | case NEXTHOP_TYPE_IFINDEX: |
718e3744 | 1221 | ifindex = stream_getl (s); |
1222 | break; | |
5b30316e | 1223 | case NEXTHOP_TYPE_IPV4: |
718e3744 | 1224 | nexthop.s_addr = stream_get_ipv4 (s); |
616368ed | 1225 | nexthop_p = (union g_addr *)&nexthop; |
718e3744 | 1226 | break; |
5b30316e | 1227 | case NEXTHOP_TYPE_IPV4_IFINDEX: |
c963c203 | 1228 | nexthop.s_addr = stream_get_ipv4 (s); |
616368ed | 1229 | nexthop_p = (union g_addr *)&nexthop; |
c963c203 JT |
1230 | ifindex = stream_getl (s); |
1231 | break; | |
5b30316e | 1232 | case NEXTHOP_TYPE_IPV6: |
9985f83c | 1233 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1234 | break; |
1235 | } | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | /* Distance. */ | |
1240 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1241 | api.distance = stream_getc (s); | |
1242 | else | |
1243 | api.distance = 0; | |
1244 | ||
1245 | /* Metric. */ | |
1246 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1247 | api.metric = stream_getl (s); | |
1248 | else | |
1249 | api.metric = 0; | |
1250 | ||
0d9551dc DS |
1251 | /* tag */ |
1252 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
dc9ffce8 | 1253 | api.tag = stream_getl (s); |
0d9551dc DS |
1254 | else |
1255 | api.tag = 0; | |
1256 | ||
d651649e | 1257 | table_id = zvrf->table_id; |
12f6fb97 | 1258 | |
661512bf | 1259 | rib_delete (AFI_IP, api.safi, zvrf_id (zvrf), api.type, api.instance, |
3c7c91d0 | 1260 | api.flags, &p, NULL, nexthop_p, ifindex, table_id); |
04b02fda | 1261 | client->v4_route_del_cnt++; |
719e9741 | 1262 | return 0; |
718e3744 | 1263 | } |
1264 | ||
6f61a5a3 EM |
1265 | /* MRIB Nexthop lookup for IPv4. */ |
1266 | static int | |
1267 | zread_ipv4_nexthop_lookup_mrib (struct zserv *client, u_short length, struct zebra_vrf *zvrf) | |
1268 | { | |
1269 | struct in_addr addr; | |
4623d897 | 1270 | struct rib *rib; |
6f61a5a3 EM |
1271 | |
1272 | addr.s_addr = stream_get_ipv4 (client->ibuf); | |
661512bf | 1273 | rib = rib_match_ipv4_multicast (zvrf_id (zvrf), addr, NULL); |
4623d897 | 1274 | return zsend_ipv4_nexthop_lookup_mrib (client, addr, rib, zvrf); |
6f61a5a3 EM |
1275 | } |
1276 | ||
8a92a8a0 DS |
1277 | /* Zebra server IPv6 prefix add function. */ |
1278 | static int | |
d651649e | 1279 | zread_ipv4_route_ipv6_nexthop_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
8a92a8a0 | 1280 | { |
37fe7731 | 1281 | unsigned int i; |
8a92a8a0 DS |
1282 | struct stream *s; |
1283 | struct in6_addr nexthop; | |
1284 | struct rib *rib; | |
1285 | u_char message; | |
1286 | u_char nexthop_num; | |
1287 | u_char nexthop_type; | |
b4c034b0 | 1288 | struct prefix p; |
8a92a8a0 DS |
1289 | safi_t safi; |
1290 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1291 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1292 | int ret; | |
1293 | ||
1294 | /* Get input stream. */ | |
1295 | s = client->ibuf; | |
1296 | ||
8a92a8a0 DS |
1297 | memset (&nexthop, 0, sizeof (struct in6_addr)); |
1298 | ||
1299 | /* Allocate new rib. */ | |
1300 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1301 | ||
1302 | /* Type, flags, message. */ | |
1303 | rib->type = stream_getc (s); | |
1304 | rib->instance = stream_getw (s); | |
0fc452dc | 1305 | rib->flags = stream_getl (s); |
8a92a8a0 DS |
1306 | message = stream_getc (s); |
1307 | safi = stream_getw (s); | |
1308 | rib->uptime = time (NULL); | |
1309 | ||
1310 | /* IPv4 prefix. */ | |
1311 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1312 | p.family = AF_INET; | |
1313 | p.prefixlen = stream_getc (s); | |
b4c034b0 | 1314 | stream_get (&p.u.prefix4, s, PSIZE (p.prefixlen)); |
8a92a8a0 | 1315 | |
154caaed | 1316 | /* VRF ID */ |
661512bf | 1317 | rib->vrf_id = zvrf_id (zvrf); |
154caaed | 1318 | |
8a92a8a0 DS |
1319 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1320 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1321 | * these. Clients should send the same number of paired set of | |
1322 | * next-hop-addr/next-hop-ifindices. */ | |
1323 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1324 | { | |
37fe7731 DS |
1325 | unsigned int nh_count = 0; |
1326 | unsigned int if_count = 0; | |
1327 | unsigned int max_nh_if = 0; | |
8a92a8a0 DS |
1328 | |
1329 | nexthop_num = stream_getc (s); | |
6878b9db | 1330 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
8a92a8a0 DS |
1331 | for (i = 0; i < nexthop_num; i++) |
1332 | { | |
1333 | nexthop_type = stream_getc (s); | |
1334 | ||
1335 | switch (nexthop_type) | |
1336 | { | |
5b30316e | 1337 | case NEXTHOP_TYPE_IPV6: |
8a92a8a0 | 1338 | stream_get (&nexthop, s, 16); |
37fe7731 | 1339 | if (nh_count < multipath_num) { |
8a92a8a0 DS |
1340 | nexthops[nh_count++] = nexthop; |
1341 | } | |
1342 | break; | |
5b30316e | 1343 | case NEXTHOP_TYPE_IFINDEX: |
37fe7731 | 1344 | if (if_count < multipath_num) { |
8a92a8a0 DS |
1345 | ifindices[if_count++] = stream_getl (s); |
1346 | } | |
1347 | break; | |
5b30316e | 1348 | case NEXTHOP_TYPE_BLACKHOLE: |
a399694f | 1349 | rib_nexthop_blackhole_add (rib); |
8a92a8a0 DS |
1350 | break; |
1351 | } | |
1352 | } | |
1353 | ||
1354 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1355 | for (i = 0; i < max_nh_if; i++) | |
1356 | { | |
1357 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
1358 | if ((i < if_count) && ifindices[i]) { | |
a399694f | 1359 | rib_nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); |
8a92a8a0 DS |
1360 | } |
1361 | else { | |
a399694f | 1362 | rib_nexthop_ipv6_add (rib, &nexthops[i]); |
8a92a8a0 DS |
1363 | } |
1364 | } | |
1365 | else { | |
1366 | if ((i < if_count) && ifindices[i]) { | |
a399694f | 1367 | rib_nexthop_ifindex_add (rib, ifindices[i]); |
8a92a8a0 DS |
1368 | } |
1369 | } | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | /* Distance. */ | |
1374 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1375 | rib->distance = stream_getc (s); | |
1376 | ||
1377 | /* Metric. */ | |
1378 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1379 | rib->metric = stream_getl (s); | |
1380 | ||
1381 | /* Tag */ | |
1382 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
dc9ffce8 | 1383 | rib->tag = stream_getl (s); |
8a92a8a0 DS |
1384 | else |
1385 | rib->tag = 0; | |
1386 | ||
c50ca33a TT |
1387 | if (CHECK_FLAG (message, ZAPI_MESSAGE_MTU)) |
1388 | rib->mtu = stream_getl (s); | |
1389 | else | |
1390 | rib->mtu = 0; | |
1391 | ||
8a92a8a0 | 1392 | /* Table */ |
d651649e | 1393 | rib->table = zvrf->table_id; |
12f6fb97 | 1394 | |
3c7c91d0 | 1395 | ret = rib_add_multipath (AFI_IP6, safi, &p, NULL, rib); |
8a92a8a0 DS |
1396 | /* Stats */ |
1397 | if (ret > 0) | |
1398 | client->v4_route_add_cnt++; | |
1399 | else if (ret < 0) | |
1400 | client->v4_route_upd8_cnt++; | |
1401 | ||
1402 | return 0; | |
1403 | } | |
1404 | ||
719e9741 | 1405 | static int |
d651649e | 1406 | zread_ipv6_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1407 | { |
37fe7731 | 1408 | unsigned int i; |
718e3744 | 1409 | struct stream *s; |
718e3744 | 1410 | struct in6_addr nexthop; |
41fc2714 DS |
1411 | struct rib *rib; |
1412 | u_char message; | |
1413 | u_char nexthop_num; | |
1414 | u_char nexthop_type; | |
b4c034b0 | 1415 | struct prefix p; |
3c7c91d0 | 1416 | struct prefix_ipv6 src_p, *src_pp; |
41fc2714 DS |
1417 | safi_t safi; |
1418 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1419 | static unsigned int ifindices[MULTIPATH_NUM]; | |
04b02fda | 1420 | int ret; |
41fc2714 DS |
1421 | |
1422 | /* Get input stream. */ | |
718e3744 | 1423 | s = client->ibuf; |
41fc2714 | 1424 | |
718e3744 | 1425 | memset (&nexthop, 0, sizeof (struct in6_addr)); |
1426 | ||
41fc2714 DS |
1427 | /* Allocate new rib. */ |
1428 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1429 | ||
718e3744 | 1430 | /* Type, flags, message. */ |
41fc2714 | 1431 | rib->type = stream_getc (s); |
7c8ff89e | 1432 | rib->instance = stream_getw (s); |
0fc452dc | 1433 | rib->flags = stream_getl (s); |
41fc2714 DS |
1434 | message = stream_getc (s); |
1435 | safi = stream_getw (s); | |
1436 | rib->uptime = time (NULL); | |
718e3744 | 1437 | |
41fc2714 | 1438 | /* IPv6 prefix. */ |
718e3744 | 1439 | memset (&p, 0, sizeof (struct prefix_ipv6)); |
1440 | p.family = AF_INET6; | |
1441 | p.prefixlen = stream_getc (s); | |
b4c034b0 | 1442 | stream_get (&p.u.prefix6, s, PSIZE (p.prefixlen)); |
718e3744 | 1443 | |
3c7c91d0 DL |
1444 | if (CHECK_FLAG (message, ZAPI_MESSAGE_SRCPFX)) |
1445 | { | |
1446 | memset (&src_p, 0, sizeof (struct prefix_ipv6)); | |
1447 | src_p.family = AF_INET6; | |
1448 | src_p.prefixlen = stream_getc (s); | |
1449 | stream_get (&src_p.prefix, s, PSIZE (src_p.prefixlen)); | |
1450 | src_pp = &src_p; | |
1451 | } | |
1452 | else | |
1453 | src_pp = NULL; | |
1454 | ||
41fc2714 DS |
1455 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1456 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1457 | * these. Clients should send the same number of paired set of | |
1458 | * next-hop-addr/next-hop-ifindices. */ | |
1459 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
718e3744 | 1460 | { |
37fe7731 DS |
1461 | unsigned int nh_count = 0; |
1462 | unsigned int if_count = 0; | |
1463 | unsigned int max_nh_if = 0; | |
718e3744 | 1464 | |
41fc2714 | 1465 | nexthop_num = stream_getc (s); |
6878b9db DS |
1466 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
1467 | for (i = 0; i < nexthop_num; i++) | |
718e3744 | 1468 | { |
1469 | nexthop_type = stream_getc (s); | |
1470 | ||
1471 | switch (nexthop_type) | |
1472 | { | |
5b30316e | 1473 | case NEXTHOP_TYPE_IPV6: |
718e3744 | 1474 | stream_get (&nexthop, s, 16); |
37fe7731 | 1475 | if (nh_count < multipath_num) { |
41fc2714 DS |
1476 | nexthops[nh_count++] = nexthop; |
1477 | } | |
718e3744 | 1478 | break; |
5b30316e | 1479 | case NEXTHOP_TYPE_IFINDEX: |
37fe7731 | 1480 | if (if_count < multipath_num) { |
41fc2714 DS |
1481 | ifindices[if_count++] = stream_getl (s); |
1482 | } | |
718e3744 | 1483 | break; |
5b30316e | 1484 | case NEXTHOP_TYPE_BLACKHOLE: |
a399694f | 1485 | rib_nexthop_blackhole_add (rib); |
c3c0ac83 | 1486 | break; |
718e3744 | 1487 | } |
1488 | } | |
41fc2714 DS |
1489 | |
1490 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1491 | for (i = 0; i < max_nh_if; i++) | |
1492 | { | |
1493 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
6f20b80d | 1494 | if ((i < if_count) && ifindices[i]) |
a399694f | 1495 | rib_nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); |
6f20b80d | 1496 | else |
a399694f | 1497 | rib_nexthop_ipv6_add (rib, &nexthops[i]); |
41fc2714 DS |
1498 | } |
1499 | else { | |
6f20b80d | 1500 | if ((i < if_count) && ifindices[i]) |
a399694f | 1501 | rib_nexthop_ifindex_add (rib, ifindices[i]); |
41fc2714 DS |
1502 | } |
1503 | } | |
718e3744 | 1504 | } |
1505 | ||
41fc2714 DS |
1506 | /* Distance. */ |
1507 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1508 | rib->distance = stream_getc (s); | |
718e3744 | 1509 | |
41fc2714 DS |
1510 | /* Metric. */ |
1511 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1512 | rib->metric = stream_getl (s); | |
718e3744 | 1513 | |
0d9551dc DS |
1514 | /* Tag */ |
1515 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
dc9ffce8 | 1516 | rib->tag = stream_getl (s); |
0d9551dc DS |
1517 | else |
1518 | rib->tag = 0; | |
c50ca33a TT |
1519 | |
1520 | if (CHECK_FLAG (message, ZAPI_MESSAGE_MTU)) | |
1521 | rib->mtu = stream_getl (s); | |
1522 | else | |
1523 | rib->mtu = 0; | |
0d9551dc | 1524 | |
154caaed | 1525 | /* VRF ID */ |
661512bf | 1526 | rib->vrf_id = zvrf_id (zvrf); |
d651649e | 1527 | rib->table = zvrf->table_id; |
154caaed | 1528 | |
3c7c91d0 | 1529 | ret = rib_add_multipath (AFI_IP6, safi, &p, src_pp, rib); |
04b02fda DS |
1530 | /* Stats */ |
1531 | if (ret > 0) | |
1532 | client->v6_route_add_cnt++; | |
1533 | else if (ret < 0) | |
1534 | client->v6_route_upd8_cnt++; | |
1535 | ||
719e9741 | 1536 | return 0; |
718e3744 | 1537 | } |
1538 | ||
1539 | /* Zebra server IPv6 prefix delete function. */ | |
719e9741 | 1540 | static int |
d651649e | 1541 | zread_ipv6_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1542 | { |
1543 | int i; | |
1544 | struct stream *s; | |
1545 | struct zapi_ipv6 api; | |
1546 | struct in6_addr nexthop; | |
4b2792b5 | 1547 | union g_addr *pnexthop = NULL; |
718e3744 | 1548 | unsigned long ifindex; |
616368ed | 1549 | struct prefix p; |
3c7c91d0 | 1550 | struct prefix_ipv6 src_p, *src_pp; |
718e3744 | 1551 | |
1552 | s = client->ibuf; | |
1553 | ifindex = 0; | |
1554 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1555 | ||
1556 | /* Type, flags, message. */ | |
1557 | api.type = stream_getc (s); | |
7c8ff89e | 1558 | api.instance = stream_getw (s); |
0fc452dc | 1559 | api.flags = stream_getl (s); |
718e3744 | 1560 | api.message = stream_getc (s); |
f768f367 | 1561 | api.safi = stream_getw (s); |
718e3744 | 1562 | |
1563 | /* IPv4 prefix. */ | |
1564 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1565 | p.family = AF_INET6; | |
1566 | p.prefixlen = stream_getc (s); | |
616368ed | 1567 | stream_get (&p.u.prefix6, s, PSIZE (p.prefixlen)); |
718e3744 | 1568 | |
3c7c91d0 DL |
1569 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_SRCPFX)) |
1570 | { | |
1571 | memset (&src_p, 0, sizeof (struct prefix_ipv6)); | |
1572 | src_p.family = AF_INET6; | |
1573 | src_p.prefixlen = stream_getc (s); | |
1574 | stream_get (&src_p.prefix, s, PSIZE (src_p.prefixlen)); | |
1575 | src_pp = &src_p; | |
1576 | } | |
1577 | else | |
1578 | src_pp = NULL; | |
1579 | ||
718e3744 | 1580 | /* Nexthop, ifindex, distance, metric. */ |
1581 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1582 | { | |
1583 | u_char nexthop_type; | |
1584 | ||
1585 | api.nexthop_num = stream_getc (s); | |
1586 | for (i = 0; i < api.nexthop_num; i++) | |
1587 | { | |
1588 | nexthop_type = stream_getc (s); | |
1589 | ||
1590 | switch (nexthop_type) | |
1591 | { | |
5b30316e | 1592 | case NEXTHOP_TYPE_IPV6: |
718e3744 | 1593 | stream_get (&nexthop, s, 16); |
616368ed | 1594 | pnexthop = (union g_addr *)&nexthop; |
718e3744 | 1595 | break; |
5b30316e | 1596 | case NEXTHOP_TYPE_IFINDEX: |
718e3744 | 1597 | ifindex = stream_getl (s); |
1598 | break; | |
1599 | } | |
1600 | } | |
1601 | } | |
1602 | ||
0d9551dc | 1603 | /* Distance. */ |
718e3744 | 1604 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) |
1605 | api.distance = stream_getc (s); | |
1606 | else | |
1607 | api.distance = 0; | |
0d9551dc DS |
1608 | |
1609 | /* Metric. */ | |
718e3744 | 1610 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) |
1611 | api.metric = stream_getl (s); | |
1612 | else | |
1613 | api.metric = 0; | |
1614 | ||
0d9551dc DS |
1615 | /* tag */ |
1616 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
dc9ffce8 | 1617 | api.tag = stream_getl (s); |
0d9551dc DS |
1618 | else |
1619 | api.tag = 0; | |
1620 | ||
718e3744 | 1621 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) |
661512bf | 1622 | rib_delete (AFI_IP6, api.safi, zvrf_id (zvrf), api.type, api.instance, |
3c7c91d0 | 1623 | api.flags, &p, src_pp, NULL, ifindex, client->rtm_table); |
718e3744 | 1624 | else |
661512bf | 1625 | rib_delete (AFI_IP6, api.safi, zvrf_id (zvrf), api.type, api.instance, |
3c7c91d0 | 1626 | api.flags, &p, src_pp, pnexthop, ifindex, client->rtm_table); |
04b02fda DS |
1627 | |
1628 | client->v6_route_del_cnt++; | |
719e9741 | 1629 | return 0; |
718e3744 | 1630 | } |
1631 | ||
18a6dce6 | 1632 | /* Register zebra server router-id information. Send current router-id */ |
719e9741 | 1633 | static int |
d651649e | 1634 | zread_router_id_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
18a6dce6 | 1635 | { |
1636 | struct prefix p; | |
1637 | ||
1638 | /* Router-id information is needed. */ | |
661512bf | 1639 | vrf_bitmap_set (client->ridinfo, zvrf_id (zvrf)); |
18a6dce6 | 1640 | |
661512bf | 1641 | router_id_get (&p, zvrf_id (zvrf)); |
18a6dce6 | 1642 | |
661512bf | 1643 | return zsend_router_id_update (client, &p, zvrf_id (zvrf)); |
18a6dce6 | 1644 | } |
1645 | ||
1646 | /* Unregister zebra server router-id information. */ | |
719e9741 | 1647 | static int |
d651649e | 1648 | zread_router_id_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
18a6dce6 | 1649 | { |
661512bf | 1650 | vrf_bitmap_unset (client->ridinfo, zvrf_id (zvrf)); |
719e9741 | 1651 | return 0; |
18a6dce6 | 1652 | } |
1653 | ||
2ea1ab1c VT |
1654 | /* Tie up route-type and client->sock */ |
1655 | static void | |
1656 | zread_hello (struct zserv *client) | |
1657 | { | |
1658 | /* type of protocol (lib/zebra.h) */ | |
1659 | u_char proto; | |
7c8ff89e DS |
1660 | u_short instance; |
1661 | ||
2ea1ab1c | 1662 | proto = stream_getc (client->ibuf); |
7c8ff89e | 1663 | instance = stream_getw (client->ibuf); |
2ea1ab1c VT |
1664 | |
1665 | /* accept only dynamic routing protocols */ | |
1666 | if ((proto < ZEBRA_ROUTE_MAX) | |
1667 | && (proto > ZEBRA_ROUTE_STATIC)) | |
1668 | { | |
1669 | zlog_notice ("client %d says hello and bids fair to announce only %s routes", | |
1670 | client->sock, zebra_route_string(proto)); | |
7c8ff89e DS |
1671 | if (instance) |
1672 | zlog_notice ("client protocol instance %d", instance); | |
2ea1ab1c | 1673 | |
fb018d25 | 1674 | client->proto = proto; |
7c8ff89e | 1675 | client->instance = instance; |
2ea1ab1c VT |
1676 | } |
1677 | } | |
1678 | ||
7076bb2f FL |
1679 | /* Unregister all information in a VRF. */ |
1680 | static int | |
d651649e | 1681 | zread_vrf_unregister (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
7076bb2f FL |
1682 | { |
1683 | int i; | |
1684 | afi_t afi; | |
1685 | ||
1686 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1687 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
661512bf RW |
1688 | vrf_bitmap_unset (client->redist[afi][i], zvrf_id (zvrf)); |
1689 | vrf_bitmap_unset (client->redist_default, zvrf_id (zvrf)); | |
1690 | vrf_bitmap_unset (client->ifinfo, zvrf_id (zvrf)); | |
1691 | vrf_bitmap_unset (client->ridinfo, zvrf_id (zvrf)); | |
7076bb2f FL |
1692 | |
1693 | return 0; | |
1694 | } | |
1695 | ||
ce549947 RW |
1696 | static void |
1697 | zread_mpls_labels (int command, struct zserv *client, u_short length, | |
1698 | vrf_id_t vrf_id) | |
1699 | { | |
1700 | struct stream *s; | |
1701 | enum lsp_types_t type; | |
1702 | struct prefix prefix; | |
1703 | enum nexthop_types_t gtype; | |
1704 | union g_addr gate; | |
88d88a9c | 1705 | ifindex_t ifindex; |
ce549947 RW |
1706 | mpls_label_t in_label, out_label; |
1707 | u_int8_t distance; | |
1708 | struct zebra_vrf *zvrf; | |
1709 | ||
1710 | zvrf = vrf_info_lookup (vrf_id); | |
1711 | if (!zvrf) | |
1712 | return; | |
1713 | ||
1714 | /* Get input stream. */ | |
1715 | s = client->ibuf; | |
1716 | ||
1717 | /* Get data. */ | |
1718 | type = stream_getc (s); | |
1719 | prefix.family = stream_getl (s); | |
1720 | switch (prefix.family) | |
1721 | { | |
1722 | case AF_INET: | |
1723 | prefix.u.prefix4.s_addr = stream_get_ipv4 (s); | |
1724 | prefix.prefixlen = stream_getc (s); | |
ce549947 RW |
1725 | gate.ipv4.s_addr = stream_get_ipv4 (s); |
1726 | break; | |
1727 | case AF_INET6: | |
1728 | stream_get (&prefix.u.prefix6, s, 16); | |
1729 | prefix.prefixlen = stream_getc (s); | |
ce549947 RW |
1730 | stream_get (&gate.ipv6, s, 16); |
1731 | break; | |
1732 | default: | |
1733 | return; | |
1734 | } | |
88d88a9c | 1735 | ifindex = stream_getl (s); |
ce549947 RW |
1736 | distance = stream_getc (s); |
1737 | in_label = stream_getl (s); | |
1738 | out_label = stream_getl (s); | |
1739 | ||
88d88a9c RW |
1740 | switch (prefix.family) |
1741 | { | |
1742 | case AF_INET: | |
1743 | if (ifindex) | |
1744 | gtype = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1745 | else | |
1746 | gtype = NEXTHOP_TYPE_IPV4; | |
1747 | break; | |
1748 | case AF_INET6: | |
1749 | if (ifindex) | |
1750 | gtype = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1751 | else | |
1752 | gtype = NEXTHOP_TYPE_IPV6; | |
1753 | break; | |
1754 | default: | |
1755 | return; | |
1756 | } | |
1757 | ||
fe6c7157 RW |
1758 | if (! mpls_enabled) |
1759 | return; | |
1760 | ||
ce549947 RW |
1761 | if (command == ZEBRA_MPLS_LABELS_ADD) |
1762 | { | |
1763 | mpls_lsp_install (zvrf, type, in_label, out_label, gtype, &gate, | |
88d88a9c | 1764 | NULL, ifindex); |
ce549947 | 1765 | if (out_label != MPLS_IMP_NULL_LABEL) |
88d88a9c RW |
1766 | mpls_ftn_update (1, zvrf, type, &prefix, gtype, &gate, ifindex, |
1767 | distance, out_label); | |
ce549947 RW |
1768 | } |
1769 | else if (command == ZEBRA_MPLS_LABELS_DELETE) | |
1770 | { | |
88d88a9c | 1771 | mpls_lsp_uninstall (zvrf, type, in_label, gtype, &gate, NULL, ifindex); |
ce549947 | 1772 | if (out_label != MPLS_IMP_NULL_LABEL) |
88d88a9c RW |
1773 | mpls_ftn_update (0, zvrf, type, &prefix, gtype, &gate, ifindex, |
1774 | distance, out_label); | |
ce549947 RW |
1775 | } |
1776 | } | |
fea12efb | 1777 | /* Send response to a label manager connect request to client */ |
1778 | static int | |
1779 | zsend_label_manager_connect_response (struct zserv *client, vrf_id_t vrf_id, u_short result) | |
1780 | { | |
1781 | struct stream *s; | |
1782 | ||
1783 | s = client->obuf; | |
1784 | stream_reset (s); | |
1785 | ||
1786 | zserv_create_header (s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); | |
1787 | ||
1788 | /* result */ | |
1789 | stream_putc (s, result); | |
1790 | ||
1791 | /* Write packet size. */ | |
1792 | stream_putw_at (s, 0, stream_get_endp (s)); | |
1793 | ||
1794 | return writen (client->sock, s->data, stream_get_endp (s)); | |
1795 | } | |
1796 | ||
1797 | static void | |
1798 | zread_label_manager_connect (struct zserv *client, vrf_id_t vrf_id) | |
1799 | { | |
1800 | struct stream *s; | |
1801 | /* type of protocol (lib/zebra.h) */ | |
1802 | u_char proto; | |
1803 | u_short instance; | |
1804 | ||
1805 | /* Get input stream. */ | |
1806 | s = client->ibuf; | |
1807 | ||
1808 | /* Get data. */ | |
1809 | proto = stream_getc (s); | |
1810 | instance = stream_getw (s); | |
1811 | ||
1812 | /* accept only dynamic routing protocols */ | |
1813 | if ((proto >= ZEBRA_ROUTE_MAX) | |
1814 | || (proto <= ZEBRA_ROUTE_STATIC)) | |
1815 | { | |
1816 | zlog_err ("client %d has wrong protocol %s", | |
1817 | client->sock, zebra_route_string(proto)); | |
1818 | zsend_label_manager_connect_response (client, vrf_id, 1); | |
1819 | return; | |
1820 | } | |
1821 | zlog_notice ("client %d with instance %u connected as %s", | |
1822 | client->sock, instance, zebra_route_string(proto)); | |
1823 | client->proto = proto; | |
1824 | client->instance = instance; | |
1825 | ||
1826 | /* | |
1827 | Release previous labels of same protocol and instance. | |
1828 | This is done in case it restarted from an unexpected shutdown. | |
1829 | */ | |
1830 | release_daemon_chunks (proto, instance); | |
1831 | ||
1832 | zlog_debug (" Label Manager client connected: sock %d, proto %s, instance %u", | |
1833 | client->sock, zebra_route_string(proto), instance); | |
1834 | /* send response back */ | |
1835 | zsend_label_manager_connect_response (client, vrf_id, 0); | |
1836 | } | |
1837 | /* Send response to a get label chunk request to client */ | |
1838 | static int | |
1839 | zsend_assign_label_chunk_response (struct zserv *client, vrf_id_t vrf_id, | |
1840 | struct label_manager_chunk *lmc) | |
1841 | { | |
1842 | struct stream *s; | |
1843 | ||
1844 | s = client->obuf; | |
1845 | stream_reset (s); | |
1846 | ||
1847 | zserv_create_header (s, ZEBRA_GET_LABEL_CHUNK, vrf_id); | |
1848 | ||
1849 | if (lmc) | |
1850 | { | |
1851 | /* keep */ | |
1852 | stream_putc (s, lmc->keep); | |
1853 | /* start and end labels */ | |
1854 | stream_putl (s, lmc->start); | |
1855 | stream_putl (s, lmc->end); | |
1856 | ||
1857 | } | |
1858 | ||
1859 | /* Write packet size. */ | |
1860 | stream_putw_at (s, 0, stream_get_endp (s)); | |
1861 | ||
1862 | return writen (client->sock, s->data, stream_get_endp (s)); | |
1863 | } | |
1864 | ||
1865 | static void | |
1866 | zread_get_label_chunk (struct zserv *client, vrf_id_t vrf_id) | |
1867 | { | |
1868 | struct stream *s; | |
1869 | u_char keep; | |
1870 | uint32_t size; | |
1871 | struct label_manager_chunk *lmc; | |
1872 | ||
1873 | /* Get input stream. */ | |
1874 | s = client->ibuf; | |
1875 | ||
1876 | /* Get data. */ | |
1877 | keep = stream_getc (s); | |
1878 | size = stream_getl (s); | |
1879 | ||
1880 | lmc = assign_label_chunk (client->proto, client->instance, keep, size); | |
1881 | if (!lmc) | |
1882 | zlog_err ("%s: Unable to assign Label Chunk of size %u", __func__, size); | |
1883 | else | |
1884 | zlog_debug ("Assigned Label Chunk %u - %u to %u", | |
1885 | lmc->start, lmc->end, keep); | |
1886 | /* send response back */ | |
1887 | zsend_assign_label_chunk_response (client, vrf_id, lmc); | |
1888 | } | |
1889 | ||
1890 | static void | |
1891 | zread_release_label_chunk (struct zserv *client) | |
1892 | { | |
1893 | struct stream *s; | |
1894 | uint32_t start, end; | |
1895 | ||
1896 | /* Get input stream. */ | |
1897 | s = client->ibuf; | |
1898 | ||
1899 | /* Get data. */ | |
1900 | start = stream_getl (s); | |
1901 | end = stream_getl (s); | |
1902 | ||
1903 | release_label_chunk (client->proto, client->instance, start, end); | |
1904 | } | |
1905 | static void | |
1906 | zread_label_manager_request (int cmd, struct zserv *client, vrf_id_t vrf_id) | |
1907 | { | |
1908 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
1909 | if (cmd == ZEBRA_LABEL_MANAGER_CONNECT) | |
1910 | client->is_synchronous = 1; | |
1911 | ||
1912 | /* external label manager */ | |
1913 | if (lm_is_external) | |
1914 | { | |
1915 | if (zread_relay_label_manager_request (cmd, client) != 0) | |
1916 | zsend_label_manager_connect_response (client, vrf_id, 1); | |
1917 | } | |
1918 | /* this is a label manager */ | |
1919 | else | |
1920 | { | |
1921 | if (cmd == ZEBRA_LABEL_MANAGER_CONNECT) | |
1922 | zread_label_manager_connect (client, vrf_id); | |
1923 | else | |
1924 | { | |
1925 | /* Sanity: don't allow 'unidentified' requests */ | |
1926 | if (!client->proto) | |
1927 | { | |
1928 | zlog_err ("Got label request from an unidentified client"); | |
1929 | return; | |
1930 | } | |
1931 | if (cmd == ZEBRA_GET_LABEL_CHUNK) | |
1932 | zread_get_label_chunk (client, vrf_id); | |
1933 | else if (cmd == ZEBRA_RELEASE_LABEL_CHUNK) | |
1934 | zread_release_label_chunk (client); | |
1935 | } | |
1936 | } | |
1937 | } | |
ce549947 | 1938 | |
4b33b75a | 1939 | /* Cleanup registered nexthops (across VRFs) upon client disconnect. */ |
1940 | static void | |
1941 | zebra_client_close_cleanup_rnh (struct zserv *client) | |
1942 | { | |
1a1a7065 | 1943 | struct vrf *vrf; |
4b33b75a | 1944 | struct zebra_vrf *zvrf; |
1945 | ||
1a1a7065 | 1946 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) |
4b33b75a | 1947 | { |
1a1a7065 | 1948 | if ((zvrf = vrf->info) != NULL) |
4b33b75a | 1949 | { |
661512bf RW |
1950 | zebra_cleanup_rnh_client(zvrf_id (zvrf), AF_INET, client, RNH_NEXTHOP_TYPE); |
1951 | zebra_cleanup_rnh_client(zvrf_id (zvrf), AF_INET6, client, RNH_NEXTHOP_TYPE); | |
1952 | zebra_cleanup_rnh_client(zvrf_id (zvrf), AF_INET, client, RNH_IMPORT_CHECK_TYPE); | |
1953 | zebra_cleanup_rnh_client(zvrf_id (zvrf), AF_INET6, client, RNH_IMPORT_CHECK_TYPE); | |
ce549947 RW |
1954 | if (client->proto == ZEBRA_ROUTE_LDP) |
1955 | { | |
1956 | hash_iterate(zvrf->lsp_table, mpls_ldp_lsp_uninstall_all, | |
1957 | zvrf->lsp_table); | |
1958 | mpls_ldp_ftn_uninstall_all (zvrf, AFI_IP); | |
1959 | mpls_ldp_ftn_uninstall_all (zvrf, AFI_IP6); | |
1960 | } | |
4b33b75a | 1961 | } |
1962 | } | |
1963 | } | |
1964 | ||
718e3744 | 1965 | /* Close zebra client. */ |
b9df2d25 | 1966 | static void |
718e3744 | 1967 | zebra_client_close (struct zserv *client) |
1968 | { | |
567b877d | 1969 | /* Send client de-registration to BFD */ |
2376c3f2 | 1970 | zebra_ptm_bfd_client_deregister(client->proto); |
567b877d | 1971 | |
4b33b75a | 1972 | /* Cleanup any registered nexthops - across all VRFs. */ |
1973 | zebra_client_close_cleanup_rnh (client); | |
fb018d25 | 1974 | |
fea12efb | 1975 | /* Release Label Manager chunks */ |
1976 | release_daemon_chunks (client->proto, client->instance); | |
1977 | ||
718e3744 | 1978 | /* Close file descriptor. */ |
1979 | if (client->sock) | |
1980 | { | |
7c8ff89e DS |
1981 | unsigned long nroutes; |
1982 | ||
718e3744 | 1983 | close (client->sock); |
7c8ff89e DS |
1984 | nroutes = rib_score_proto (client->proto, client->instance); |
1985 | zlog_notice ("client %d disconnected. %lu %s routes removed from the rib", | |
1986 | client->sock, nroutes, zebra_route_string (client->proto)); | |
718e3744 | 1987 | client->sock = -1; |
1988 | } | |
1989 | ||
1990 | /* Free stream buffers. */ | |
1991 | if (client->ibuf) | |
1992 | stream_free (client->ibuf); | |
1993 | if (client->obuf) | |
1994 | stream_free (client->obuf); | |
719e9741 | 1995 | if (client->wb) |
1996 | buffer_free(client->wb); | |
718e3744 | 1997 | |
1998 | /* Release threads. */ | |
1999 | if (client->t_read) | |
2000 | thread_cancel (client->t_read); | |
2001 | if (client->t_write) | |
2002 | thread_cancel (client->t_write); | |
719e9741 | 2003 | if (client->t_suicide) |
2004 | thread_cancel (client->t_suicide); | |
718e3744 | 2005 | |
2006 | /* Free client structure. */ | |
b21b19c5 | 2007 | listnode_delete (zebrad.client_list, client); |
c66f9c61 | 2008 | XFREE (MTYPE_TMP, client); |
718e3744 | 2009 | } |
2010 | ||
2011 | /* Make new client. */ | |
b9df2d25 | 2012 | static void |
718e3744 | 2013 | zebra_client_create (int sock) |
2014 | { | |
2015 | struct zserv *client; | |
7076bb2f FL |
2016 | int i; |
2017 | afi_t afi; | |
718e3744 | 2018 | |
c66f9c61 | 2019 | client = XCALLOC (MTYPE_TMP, sizeof (struct zserv)); |
718e3744 | 2020 | |
2021 | /* Make client input/output buffer. */ | |
2022 | client->sock = sock; | |
2023 | client->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
2024 | client->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
719e9741 | 2025 | client->wb = buffer_new(0); |
718e3744 | 2026 | |
2027 | /* Set table number. */ | |
b21b19c5 | 2028 | client->rtm_table = zebrad.rtm_table_default; |
718e3744 | 2029 | |
cf672a86 | 2030 | client->connect_time = monotime(NULL); |
7076bb2f FL |
2031 | /* Initialize flags */ |
2032 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2033 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2034 | client->redist[afi][i] = vrf_bitmap_init (); | |
2035 | client->redist_default = vrf_bitmap_init (); | |
2036 | client->ifinfo = vrf_bitmap_init (); | |
2037 | client->ridinfo = vrf_bitmap_init (); | |
04b02fda | 2038 | |
fea12efb | 2039 | /* by default, it's not a synchronous client */ |
2040 | client->is_synchronous = 0; | |
2041 | ||
718e3744 | 2042 | /* Add this client to linked list. */ |
b21b19c5 | 2043 | listnode_add (zebrad.client_list, client); |
718e3744 | 2044 | |
2045 | /* Make new read thread. */ | |
2046 | zebra_event (ZEBRA_READ, sock, client); | |
12f6fb97 DS |
2047 | |
2048 | zebra_vrf_update_all (client); | |
718e3744 | 2049 | } |
2050 | ||
2051 | /* Handler of zebra service request. */ | |
b9df2d25 | 2052 | static int |
718e3744 | 2053 | zebra_client_read (struct thread *thread) |
2054 | { | |
2055 | int sock; | |
2056 | struct zserv *client; | |
57a1477b | 2057 | size_t already; |
c1b9800a | 2058 | uint16_t length, command; |
2059 | uint8_t marker, version; | |
7076bb2f | 2060 | vrf_id_t vrf_id; |
d651649e | 2061 | struct zebra_vrf *zvrf; |
718e3744 | 2062 | |
2063 | /* Get thread data. Reset reading thread because I'm running. */ | |
2064 | sock = THREAD_FD (thread); | |
2065 | client = THREAD_ARG (thread); | |
2066 | client->t_read = NULL; | |
2067 | ||
719e9741 | 2068 | if (client->t_suicide) |
718e3744 | 2069 | { |
719e9741 | 2070 | zebra_client_close(client); |
718e3744 | 2071 | return -1; |
2072 | } | |
719e9741 | 2073 | |
2074 | /* Read length and command (if we don't have it already). */ | |
57a1477b | 2075 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) |
719e9741 | 2076 | { |
57a1477b | 2077 | ssize_t nbyte; |
719e9741 | 2078 | if (((nbyte = stream_read_try (client->ibuf, sock, |
57a1477b | 2079 | ZEBRA_HEADER_SIZE-already)) == 0) || |
719e9741 | 2080 | (nbyte == -1)) |
2081 | { | |
2082 | if (IS_ZEBRA_DEBUG_EVENT) | |
2083 | zlog_debug ("connection closed socket [%d]", sock); | |
2084 | zebra_client_close (client); | |
2085 | return -1; | |
2086 | } | |
57a1477b | 2087 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE-already)) |
719e9741 | 2088 | { |
2089 | /* Try again later. */ | |
2090 | zebra_event (ZEBRA_READ, sock, client); | |
2091 | return 0; | |
2092 | } | |
57a1477b | 2093 | already = ZEBRA_HEADER_SIZE; |
719e9741 | 2094 | } |
2095 | ||
2096 | /* Reset to read from the beginning of the incoming packet. */ | |
2097 | stream_set_getp(client->ibuf, 0); | |
2098 | ||
c1b9800a | 2099 | /* Fetch header values */ |
718e3744 | 2100 | length = stream_getw (client->ibuf); |
c1b9800a | 2101 | marker = stream_getc (client->ibuf); |
2102 | version = stream_getc (client->ibuf); | |
7076bb2f | 2103 | vrf_id = stream_getw (client->ibuf); |
c1b9800a | 2104 | command = stream_getw (client->ibuf); |
718e3744 | 2105 | |
c1b9800a | 2106 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) |
2107 | { | |
2108 | zlog_err("%s: socket %d version mismatch, marker %d, version %d", | |
2109 | __func__, sock, marker, version); | |
2110 | zebra_client_close (client); | |
2111 | return -1; | |
2112 | } | |
719e9741 | 2113 | if (length < ZEBRA_HEADER_SIZE) |
718e3744 | 2114 | { |
57a1477b | 2115 | zlog_warn("%s: socket %d message length %u is less than header size %d", |
2116 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
2117 | zebra_client_close (client); | |
2118 | return -1; | |
2119 | } | |
2120 | if (length > STREAM_SIZE(client->ibuf)) | |
2121 | { | |
2122 | zlog_warn("%s: socket %d message length %u exceeds buffer size %lu", | |
2123 | __func__, sock, length, (u_long)STREAM_SIZE(client->ibuf)); | |
718e3744 | 2124 | zebra_client_close (client); |
2125 | return -1; | |
2126 | } | |
2127 | ||
718e3744 | 2128 | /* Read rest of data. */ |
57a1477b | 2129 | if (already < length) |
718e3744 | 2130 | { |
57a1477b | 2131 | ssize_t nbyte; |
2132 | if (((nbyte = stream_read_try (client->ibuf, sock, | |
2133 | length-already)) == 0) || | |
2134 | (nbyte == -1)) | |
718e3744 | 2135 | { |
2136 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 2137 | zlog_debug ("connection closed [%d] when reading zebra data", sock); |
718e3744 | 2138 | zebra_client_close (client); |
2139 | return -1; | |
2140 | } | |
57a1477b | 2141 | if (nbyte != (ssize_t)(length-already)) |
719e9741 | 2142 | { |
2143 | /* Try again later. */ | |
2144 | zebra_event (ZEBRA_READ, sock, client); | |
2145 | return 0; | |
2146 | } | |
718e3744 | 2147 | } |
2148 | ||
719e9741 | 2149 | length -= ZEBRA_HEADER_SIZE; |
2150 | ||
718e3744 | 2151 | /* Debug packet information. */ |
2152 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 2153 | zlog_debug ("zebra message comes from socket [%d]", sock); |
718e3744 | 2154 | |
2155 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
7076bb2f FL |
2156 | zlog_debug ("zebra message received [%s] %d in VRF %u", |
2157 | zserv_command_string (command), length, vrf_id); | |
718e3744 | 2158 | |
cf672a86 | 2159 | client->last_read_time = monotime(NULL); |
04b02fda DS |
2160 | client->last_read_cmd = command; |
2161 | ||
5f3d1bdf | 2162 | zvrf = zebra_vrf_lookup_by_id (vrf_id); |
d651649e DS |
2163 | if (!zvrf) |
2164 | { | |
2165 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2166 | zlog_debug ("zebra received unknown VRF[%u]", vrf_id); | |
2167 | goto zclient_read_out; | |
2168 | } | |
2169 | ||
718e3744 | 2170 | switch (command) |
2171 | { | |
18a6dce6 | 2172 | case ZEBRA_ROUTER_ID_ADD: |
d651649e | 2173 | zread_router_id_add (client, length, zvrf); |
18a6dce6 | 2174 | break; |
2175 | case ZEBRA_ROUTER_ID_DELETE: | |
d651649e | 2176 | zread_router_id_delete (client, length, zvrf); |
18a6dce6 | 2177 | break; |
718e3744 | 2178 | case ZEBRA_INTERFACE_ADD: |
d651649e | 2179 | zread_interface_add (client, length, zvrf); |
718e3744 | 2180 | break; |
2181 | case ZEBRA_INTERFACE_DELETE: | |
d651649e | 2182 | zread_interface_delete (client, length, zvrf); |
718e3744 | 2183 | break; |
2184 | case ZEBRA_IPV4_ROUTE_ADD: | |
d651649e | 2185 | zread_ipv4_add (client, length, zvrf); |
718e3744 | 2186 | break; |
2187 | case ZEBRA_IPV4_ROUTE_DELETE: | |
d651649e | 2188 | zread_ipv4_delete (client, length, zvrf); |
718e3744 | 2189 | break; |
8a92a8a0 | 2190 | case ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD: |
d651649e | 2191 | zread_ipv4_route_ipv6_nexthop_add (client, length, zvrf); |
8a92a8a0 | 2192 | break; |
65efcfce LB |
2193 | case ZEBRA_IPV4_NEXTHOP_ADD: |
2194 | zread_ipv4_add(client, length, zvrf); /* LB: r1.0 merge - id was 1 */ | |
2195 | break; | |
2196 | case ZEBRA_IPV4_NEXTHOP_DELETE: | |
2197 | zread_ipv4_delete(client, length, zvrf); /* LB: r1.0 merge - id was 1 */ | |
2198 | break; | |
718e3744 | 2199 | case ZEBRA_IPV6_ROUTE_ADD: |
d651649e | 2200 | zread_ipv6_add (client, length, zvrf); |
718e3744 | 2201 | break; |
2202 | case ZEBRA_IPV6_ROUTE_DELETE: | |
d651649e | 2203 | zread_ipv6_delete (client, length, zvrf); |
718e3744 | 2204 | break; |
718e3744 | 2205 | case ZEBRA_REDISTRIBUTE_ADD: |
d651649e | 2206 | zebra_redistribute_add (command, client, length, zvrf); |
718e3744 | 2207 | break; |
2208 | case ZEBRA_REDISTRIBUTE_DELETE: | |
d651649e | 2209 | zebra_redistribute_delete (command, client, length, zvrf); |
718e3744 | 2210 | break; |
2211 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
d651649e | 2212 | zebra_redistribute_default_add (command, client, length, zvrf); |
718e3744 | 2213 | break; |
2214 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
d651649e | 2215 | zebra_redistribute_default_delete (command, client, length, zvrf); |
718e3744 | 2216 | break; |
6f61a5a3 EM |
2217 | case ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB: |
2218 | zread_ipv4_nexthop_lookup_mrib (client, length, zvrf); | |
718e3744 | 2219 | break; |
2ea1ab1c VT |
2220 | case ZEBRA_HELLO: |
2221 | zread_hello (client); | |
2222 | break; | |
fb018d25 | 2223 | case ZEBRA_NEXTHOP_REGISTER: |
d651649e | 2224 | zserv_rnh_register(client, sock, length, RNH_NEXTHOP_TYPE, zvrf); |
fb018d25 DS |
2225 | break; |
2226 | case ZEBRA_NEXTHOP_UNREGISTER: | |
d651649e | 2227 | zserv_rnh_unregister(client, sock, length, RNH_NEXTHOP_TYPE, zvrf); |
078430f6 DS |
2228 | break; |
2229 | case ZEBRA_IMPORT_ROUTE_REGISTER: | |
d651649e | 2230 | zserv_rnh_register(client, sock, length, RNH_IMPORT_CHECK_TYPE, zvrf); |
078430f6 DS |
2231 | break; |
2232 | case ZEBRA_IMPORT_ROUTE_UNREGISTER: | |
d651649e | 2233 | zserv_rnh_unregister(client, sock, length, RNH_IMPORT_CHECK_TYPE, zvrf); |
fb018d25 | 2234 | break; |
c43ed2e4 DS |
2235 | case ZEBRA_BFD_DEST_UPDATE: |
2236 | case ZEBRA_BFD_DEST_REGISTER: | |
d651649e | 2237 | zebra_ptm_bfd_dst_register(client, sock, length, command, zvrf); |
c43ed2e4 DS |
2238 | break; |
2239 | case ZEBRA_BFD_DEST_DEREGISTER: | |
d651649e | 2240 | zebra_ptm_bfd_dst_deregister(client, sock, length, zvrf); |
c43ed2e4 | 2241 | break; |
7076bb2f | 2242 | case ZEBRA_VRF_UNREGISTER: |
d651649e | 2243 | zread_vrf_unregister (client, length, zvrf); |
7076bb2f | 2244 | break; |
055c4dfc | 2245 | case ZEBRA_BFD_CLIENT_REGISTER: |
2246 | zebra_ptm_bfd_client_register(client, sock, length); | |
2247 | break; | |
4a04e5f7 | 2248 | case ZEBRA_INTERFACE_ENABLE_RADV: |
2249 | zebra_interface_radv_set (client, sock, length, zvrf, 1); | |
2250 | break; | |
2251 | case ZEBRA_INTERFACE_DISABLE_RADV: | |
2252 | zebra_interface_radv_set (client, sock, length, zvrf, 0); | |
2253 | break; | |
ce549947 RW |
2254 | case ZEBRA_MPLS_LABELS_ADD: |
2255 | case ZEBRA_MPLS_LABELS_DELETE: | |
2256 | zread_mpls_labels (command, client, length, vrf_id); | |
2257 | break; | |
e3be0432 DS |
2258 | case ZEBRA_IPMR_ROUTE_STATS: |
2259 | zebra_ipmr_route_stats (client, sock, length, zvrf); | |
2260 | break; | |
fea12efb | 2261 | case ZEBRA_LABEL_MANAGER_CONNECT: |
2262 | case ZEBRA_GET_LABEL_CHUNK: | |
2263 | case ZEBRA_RELEASE_LABEL_CHUNK: | |
2264 | zread_label_manager_request (command, client, vrf_id); | |
2265 | break; | |
718e3744 | 2266 | default: |
2267 | zlog_info ("Zebra received unknown command %d", command); | |
2268 | break; | |
2269 | } | |
2270 | ||
719e9741 | 2271 | if (client->t_suicide) |
2272 | { | |
2273 | /* No need to wait for thread callback, just kill immediately. */ | |
2274 | zebra_client_close(client); | |
2275 | return -1; | |
2276 | } | |
2277 | ||
d651649e | 2278 | zclient_read_out: |
718e3744 | 2279 | stream_reset (client->ibuf); |
2280 | zebra_event (ZEBRA_READ, sock, client); | |
718e3744 | 2281 | return 0; |
2282 | } | |
2283 | ||
718e3744 | 2284 | |
2285 | /* Accept code of zebra server socket. */ | |
b9df2d25 | 2286 | static int |
718e3744 | 2287 | zebra_accept (struct thread *thread) |
2288 | { | |
2289 | int accept_sock; | |
2290 | int client_sock; | |
2291 | struct sockaddr_in client; | |
2292 | socklen_t len; | |
2293 | ||
2294 | accept_sock = THREAD_FD (thread); | |
2295 | ||
719e9741 | 2296 | /* Reregister myself. */ |
2297 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
2298 | ||
718e3744 | 2299 | len = sizeof (struct sockaddr_in); |
2300 | client_sock = accept (accept_sock, (struct sockaddr *) &client, &len); | |
2301 | ||
2302 | if (client_sock < 0) | |
2303 | { | |
6099b3b5 | 2304 | zlog_warn ("Can't accept zebra socket: %s", safe_strerror (errno)); |
718e3744 | 2305 | return -1; |
2306 | } | |
2307 | ||
ccf3557b | 2308 | /* Make client socket non-blocking. */ |
719e9741 | 2309 | set_nonblocking(client_sock); |
865b852c | 2310 | |
718e3744 | 2311 | /* Create new zebra client. */ |
2312 | zebra_client_create (client_sock); | |
2313 | ||
718e3744 | 2314 | return 0; |
2315 | } | |
2316 | ||
b9df2d25 | 2317 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 2318 | /* Make zebra's server socket. */ |
b9df2d25 | 2319 | static void |
718e3744 | 2320 | zebra_serv () |
2321 | { | |
2322 | int ret; | |
2323 | int accept_sock; | |
2324 | struct sockaddr_in addr; | |
2325 | ||
2326 | accept_sock = socket (AF_INET, SOCK_STREAM, 0); | |
2327 | ||
2328 | if (accept_sock < 0) | |
2329 | { | |
3d1dc857 | 2330 | zlog_warn ("Can't create zserv stream socket: %s", |
2331 | safe_strerror (errno)); | |
718e3744 | 2332 | zlog_warn ("zebra can't provice full functionality due to above error"); |
2333 | return; | |
2334 | } | |
2335 | ||
2336 | memset (&addr, 0, sizeof (struct sockaddr_in)); | |
2337 | addr.sin_family = AF_INET; | |
2338 | addr.sin_port = htons (ZEBRA_PORT); | |
6f0e3f6e | 2339 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 2340 | addr.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 2341 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 2342 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
2343 | ||
2344 | sockopt_reuseaddr (accept_sock); | |
2345 | sockopt_reuseport (accept_sock); | |
2346 | ||
edd7c245 | 2347 | if ( zserv_privs.change(ZPRIVS_RAISE) ) |
4525281a | 2348 | zlog_err("Can't raise privileges"); |
edd7c245 | 2349 | |
718e3744 | 2350 | ret = bind (accept_sock, (struct sockaddr *)&addr, |
2351 | sizeof (struct sockaddr_in)); | |
2352 | if (ret < 0) | |
2353 | { | |
3d1dc857 | 2354 | zlog_warn ("Can't bind to stream socket: %s", |
2355 | safe_strerror (errno)); | |
718e3744 | 2356 | zlog_warn ("zebra can't provice full functionality due to above error"); |
2357 | close (accept_sock); /* Avoid sd leak. */ | |
2358 | return; | |
2359 | } | |
edd7c245 | 2360 | |
2361 | if ( zserv_privs.change(ZPRIVS_LOWER) ) | |
4525281a | 2362 | zlog_err("Can't lower privileges"); |
718e3744 | 2363 | |
2364 | ret = listen (accept_sock, 1); | |
2365 | if (ret < 0) | |
2366 | { | |
3d1dc857 | 2367 | zlog_warn ("Can't listen to stream socket: %s", |
2368 | safe_strerror (errno)); | |
718e3744 | 2369 | zlog_warn ("zebra can't provice full functionality due to above error"); |
2370 | close (accept_sock); /* Avoid sd leak. */ | |
2371 | return; | |
2372 | } | |
2373 | ||
2374 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
2375 | } | |
fbedba64 | 2376 | #else /* HAVE_TCP_ZEBRA */ |
718e3744 | 2377 | |
2378 | /* For sockaddr_un. */ | |
2379 | #include <sys/un.h> | |
2380 | ||
2381 | /* zebra server UNIX domain socket. */ | |
b9df2d25 | 2382 | static void |
fce954f8 | 2383 | zebra_serv_un (const char *path) |
718e3744 | 2384 | { |
2385 | int ret; | |
2386 | int sock, len; | |
2387 | struct sockaddr_un serv; | |
2388 | mode_t old_mask; | |
2389 | ||
2390 | /* First of all, unlink existing socket */ | |
2391 | unlink (path); | |
2392 | ||
2393 | /* Set umask */ | |
2394 | old_mask = umask (0077); | |
2395 | ||
2396 | /* Make UNIX domain socket. */ | |
2397 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
2398 | if (sock < 0) | |
2399 | { | |
3d1dc857 | 2400 | zlog_warn ("Can't create zserv unix socket: %s", |
2401 | safe_strerror (errno)); | |
2402 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2403 | return; |
2404 | } | |
2405 | ||
2406 | /* Make server socket. */ | |
2407 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
2408 | serv.sun_family = AF_UNIX; | |
2409 | strncpy (serv.sun_path, path, strlen (path)); | |
6f0e3f6e | 2410 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 2411 | len = serv.sun_len = SUN_LEN(&serv); |
2412 | #else | |
2413 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 2414 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2415 | |
2416 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
2417 | if (ret < 0) | |
2418 | { | |
3d1dc857 | 2419 | zlog_warn ("Can't bind to unix socket %s: %s", |
2420 | path, safe_strerror (errno)); | |
2421 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2422 | close (sock); |
2423 | return; | |
2424 | } | |
2425 | ||
2426 | ret = listen (sock, 5); | |
2427 | if (ret < 0) | |
2428 | { | |
3d1dc857 | 2429 | zlog_warn ("Can't listen to unix socket %s: %s", |
2430 | path, safe_strerror (errno)); | |
2431 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2432 | close (sock); |
2433 | return; | |
2434 | } | |
2435 | ||
2436 | umask (old_mask); | |
2437 | ||
2438 | zebra_event (ZEBRA_SERV, sock, NULL); | |
2439 | } | |
fbedba64 | 2440 | #endif /* HAVE_TCP_ZEBRA */ |
6b0655a2 | 2441 | |
718e3744 | 2442 | |
b9df2d25 | 2443 | static void |
718e3744 | 2444 | zebra_event (enum event event, int sock, struct zserv *client) |
2445 | { | |
2446 | switch (event) | |
2447 | { | |
2448 | case ZEBRA_SERV: | |
b21b19c5 | 2449 | thread_add_read (zebrad.master, zebra_accept, client, sock); |
718e3744 | 2450 | break; |
2451 | case ZEBRA_READ: | |
2452 | client->t_read = | |
b21b19c5 | 2453 | thread_add_read (zebrad.master, zebra_client_read, client, sock); |
718e3744 | 2454 | break; |
2455 | case ZEBRA_WRITE: | |
2456 | /**/ | |
2457 | break; | |
2458 | } | |
2459 | } | |
6b0655a2 | 2460 | |
04b02fda DS |
2461 | #define ZEBRA_TIME_BUF 32 |
2462 | static char * | |
2463 | zserv_time_buf(time_t *time1, char *buf, int buflen) | |
2464 | { | |
2465 | struct tm *tm; | |
2466 | time_t now; | |
2467 | ||
2468 | assert (buf != NULL); | |
2469 | assert (buflen >= ZEBRA_TIME_BUF); | |
2470 | assert (time1 != NULL); | |
2471 | ||
2472 | if (!*time1) | |
2473 | { | |
2474 | snprintf(buf, buflen, "never "); | |
2475 | return (buf); | |
2476 | } | |
2477 | ||
cf672a86 | 2478 | now = monotime(NULL); |
04b02fda DS |
2479 | now -= *time1; |
2480 | tm = gmtime(&now); | |
2481 | ||
2482 | /* Making formatted timer strings. */ | |
2483 | #define ONE_DAY_SECOND 60*60*24 | |
2484 | #define ONE_WEEK_SECOND 60*60*24*7 | |
2485 | ||
2486 | if (now < ONE_DAY_SECOND) | |
2487 | snprintf (buf, buflen, "%02d:%02d:%02d", | |
2488 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
2489 | else if (now < ONE_WEEK_SECOND) | |
2490 | snprintf (buf, buflen, "%dd%02dh%02dm", | |
2491 | tm->tm_yday, tm->tm_hour, tm->tm_min); | |
2492 | else | |
2493 | snprintf (buf, buflen, "%02dw%dd%02dh", | |
2494 | tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); | |
2495 | return buf; | |
2496 | } | |
2497 | ||
2498 | static void | |
2499 | zebra_show_client_detail (struct vty *vty, struct zserv *client) | |
2500 | { | |
2501 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2502 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
2503 | ||
7c8ff89e DS |
2504 | vty_out (vty, "Client: %s", zebra_route_string(client->proto)); |
2505 | if (client->instance) | |
2506 | vty_out (vty, " Instance: %d", client->instance); | |
2507 | vty_out (vty, "%s", VTY_NEWLINE); | |
2508 | ||
04b02fda DS |
2509 | vty_out (vty, "------------------------ %s", VTY_NEWLINE); |
2510 | vty_out (vty, "FD: %d %s", client->sock, VTY_NEWLINE); | |
2511 | vty_out (vty, "Route Table ID: %d %s", client->rtm_table, VTY_NEWLINE); | |
2512 | ||
2513 | vty_out (vty, "Connect Time: %s %s", | |
2514 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2515 | VTY_NEWLINE); | |
2516 | if (client->nh_reg_time) | |
2517 | { | |
2518 | vty_out (vty, "Nexthop Registry Time: %s %s", | |
2519 | zserv_time_buf(&client->nh_reg_time, nhbuf, ZEBRA_TIME_BUF), | |
2520 | VTY_NEWLINE); | |
2521 | if (client->nh_last_upd_time) | |
2522 | vty_out (vty, "Nexthop Last Update Time: %s %s", | |
2523 | zserv_time_buf(&client->nh_last_upd_time, mbuf, ZEBRA_TIME_BUF), | |
2524 | VTY_NEWLINE); | |
2525 | else | |
2526 | vty_out (vty, "No Nexthop Update sent%s", VTY_NEWLINE); | |
2527 | } | |
2528 | else | |
2529 | vty_out (vty, "Not registered for Nexthop Updates%s", VTY_NEWLINE); | |
2530 | ||
2531 | vty_out (vty, "Last Msg Rx Time: %s %s", | |
2532 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2533 | VTY_NEWLINE); | |
2534 | vty_out (vty, "Last Msg Tx Time: %s %s", | |
2535 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2536 | VTY_NEWLINE); | |
2537 | if (client->last_read_time) | |
2538 | vty_out (vty, "Last Rcvd Cmd: %s %s", | |
2539 | zserv_command_string(client->last_read_cmd), VTY_NEWLINE); | |
2540 | if (client->last_write_time) | |
2541 | vty_out (vty, "Last Sent Cmd: %s %s", | |
2542 | zserv_command_string(client->last_write_cmd), VTY_NEWLINE); | |
2543 | vty_out (vty, "%s", VTY_NEWLINE); | |
2544 | ||
2545 | vty_out (vty, "Type Add Update Del %s", VTY_NEWLINE); | |
2546 | vty_out (vty, "================================================== %s", VTY_NEWLINE); | |
2547 | vty_out (vty, "IPv4 %-12d%-12d%-12d%s", client->v4_route_add_cnt, | |
2548 | client->v4_route_upd8_cnt, client->v4_route_del_cnt, VTY_NEWLINE); | |
2549 | vty_out (vty, "IPv6 %-12d%-12d%-12d%s", client->v6_route_add_cnt, | |
2550 | client->v6_route_upd8_cnt, client->v6_route_del_cnt, VTY_NEWLINE); | |
2551 | vty_out (vty, "Redist:v4 %-12d%-12d%-12d%s", client->redist_v4_add_cnt, 0, | |
2552 | client->redist_v4_del_cnt, VTY_NEWLINE); | |
2553 | vty_out (vty, "Redist:v6 %-12d%-12d%-12d%s", client->redist_v6_add_cnt, 0, | |
2554 | client->redist_v6_del_cnt, VTY_NEWLINE); | |
2555 | vty_out (vty, "Connected %-12d%-12d%-12d%s", client->ifadd_cnt, 0, | |
2556 | client->ifdel_cnt, VTY_NEWLINE); | |
c43ed2e4 DS |
2557 | vty_out (vty, "BFD peer %-12d%-12d%-12d%s", client->bfd_peer_add_cnt, |
2558 | client->bfd_peer_upd8_cnt, client->bfd_peer_del_cnt, VTY_NEWLINE); | |
04b02fda DS |
2559 | vty_out (vty, "Interface Up Notifications: %d%s", client->ifup_cnt, |
2560 | VTY_NEWLINE); | |
2561 | vty_out (vty, "Interface Down Notifications: %d%s", client->ifdown_cnt, | |
2562 | VTY_NEWLINE); | |
2563 | ||
2564 | vty_out (vty, "%s", VTY_NEWLINE); | |
2565 | return; | |
2566 | } | |
2567 | ||
2568 | static void | |
2569 | zebra_show_client_brief (struct vty *vty, struct zserv *client) | |
2570 | { | |
2571 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2572 | char wbuf[ZEBRA_TIME_BUF]; | |
2573 | ||
2574 | vty_out (vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d%s", | |
2575 | zebra_route_string(client->proto), | |
2576 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2577 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2578 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2579 | client->v4_route_add_cnt+client->v4_route_upd8_cnt, | |
2580 | client->v4_route_del_cnt, | |
2581 | client->v6_route_add_cnt+client->v6_route_upd8_cnt, | |
2582 | client->v6_route_del_cnt, VTY_NEWLINE); | |
2583 | ||
2584 | } | |
2585 | ||
8ed6821e | 2586 | struct zserv * |
2587 | zebra_find_client (u_char proto) | |
2588 | { | |
2589 | struct listnode *node, *nnode; | |
2590 | struct zserv *client; | |
2591 | ||
2592 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
2593 | { | |
2594 | if (client->proto == proto) | |
2595 | return client; | |
2596 | } | |
2597 | ||
2598 | return NULL; | |
2599 | } | |
2600 | ||
9bf75362 | 2601 | #ifdef HAVE_NETLINK |
718e3744 | 2602 | /* Display default rtm_table for all clients. */ |
2603 | DEFUN (show_table, | |
2604 | show_table_cmd, | |
2605 | "show table", | |
2606 | SHOW_STR | |
2607 | "default routing table to use for all clients\n") | |
2608 | { | |
b21b19c5 | 2609 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, |
718e3744 | 2610 | VTY_NEWLINE); |
2611 | return CMD_SUCCESS; | |
2612 | } | |
2613 | ||
6147e2c6 | 2614 | DEFUN (config_table, |
718e3744 | 2615 | config_table_cmd, |
2616 | "table TABLENO", | |
2617 | "Configure target kernel routing table\n" | |
2618 | "TABLE integer\n") | |
2619 | { | |
6af6be86 | 2620 | zebrad.rtm_table_default = strtol (argv[1]->arg, (char**)0, 10); |
718e3744 | 2621 | return CMD_SUCCESS; |
2622 | } | |
2623 | ||
813d4307 DW |
2624 | DEFUN (no_config_table, |
2625 | no_config_table_cmd, | |
6af6be86 | 2626 | "no table [TABLENO]", |
813d4307 DW |
2627 | NO_STR |
2628 | "Configure target kernel routing table\n" | |
2629 | "TABLE integer\n") | |
2630 | { | |
2631 | zebrad.rtm_table_default = 0; | |
2632 | return CMD_SUCCESS; | |
2633 | } | |
9bf75362 | 2634 | #endif |
813d4307 | 2635 | |
647e4f1f | 2636 | DEFUN (ip_forwarding, |
2637 | ip_forwarding_cmd, | |
2638 | "ip forwarding", | |
2639 | IP_STR | |
2640 | "Turn on IP forwarding") | |
2641 | { | |
2642 | int ret; | |
2643 | ||
2644 | ret = ipforward (); | |
b71f00f2 | 2645 | if (ret == 0) |
2646 | ret = ipforward_on (); | |
647e4f1f | 2647 | |
647e4f1f | 2648 | if (ret == 0) |
2649 | { | |
2650 | vty_out (vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
2651 | return CMD_WARNING; | |
2652 | } | |
2653 | ||
2654 | return CMD_SUCCESS; | |
2655 | } | |
2656 | ||
718e3744 | 2657 | DEFUN (no_ip_forwarding, |
2658 | no_ip_forwarding_cmd, | |
2659 | "no ip forwarding", | |
2660 | NO_STR | |
2661 | IP_STR | |
2662 | "Turn off IP forwarding") | |
2663 | { | |
2664 | int ret; | |
2665 | ||
2666 | ret = ipforward (); | |
b71f00f2 | 2667 | if (ret != 0) |
2668 | ret = ipforward_off (); | |
718e3744 | 2669 | |
718e3744 | 2670 | if (ret != 0) |
2671 | { | |
2672 | vty_out (vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
2673 | return CMD_WARNING; | |
2674 | } | |
2675 | ||
2676 | return CMD_SUCCESS; | |
2677 | } | |
2678 | ||
2679 | /* This command is for debugging purpose. */ | |
2680 | DEFUN (show_zebra_client, | |
2681 | show_zebra_client_cmd, | |
2682 | "show zebra client", | |
2683 | SHOW_STR | |
49d73233 | 2684 | "Zebra information\n" |
b9ee4999 | 2685 | "Client information\n") |
718e3744 | 2686 | { |
52dc7ee6 | 2687 | struct listnode *node; |
718e3744 | 2688 | struct zserv *client; |
2689 | ||
1eb8ef25 | 2690 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) |
04b02fda DS |
2691 | zebra_show_client_detail(vty, client); |
2692 | ||
2693 | return CMD_SUCCESS; | |
2694 | } | |
2695 | ||
2696 | /* This command is for debugging purpose. */ | |
2697 | DEFUN (show_zebra_client_summary, | |
2698 | show_zebra_client_summary_cmd, | |
2699 | "show zebra client summary", | |
2700 | SHOW_STR | |
b9ee4999 DS |
2701 | "Zebra information brief\n" |
2702 | "Client information brief\n" | |
2703 | "Brief Summary\n") | |
04b02fda DS |
2704 | { |
2705 | struct listnode *node; | |
2706 | struct zserv *client; | |
2707 | ||
2708 | vty_out (vty, "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes %s", | |
2709 | VTY_NEWLINE); | |
2710 | vty_out (vty,"--------------------------------------------------------------------------------%s", | |
2711 | VTY_NEWLINE); | |
2712 | ||
2713 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) | |
2714 | zebra_show_client_brief(vty, client); | |
fb018d25 | 2715 | |
04b02fda | 2716 | vty_out (vty, "Routes column shows (added+updated)/deleted%s", VTY_NEWLINE); |
718e3744 | 2717 | return CMD_SUCCESS; |
2718 | } | |
2719 | ||
2720 | /* Table configuration write function. */ | |
b9df2d25 | 2721 | static int |
718e3744 | 2722 | config_write_table (struct vty *vty) |
2723 | { | |
b21b19c5 | 2724 | if (zebrad.rtm_table_default) |
2725 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, | |
718e3744 | 2726 | VTY_NEWLINE); |
2727 | return 0; | |
2728 | } | |
2729 | ||
2730 | /* table node for routing tables. */ | |
7fc626de | 2731 | static struct cmd_node table_node = |
718e3744 | 2732 | { |
2733 | TABLE_NODE, | |
2734 | "", /* This node has no interface. */ | |
2735 | 1 | |
2736 | }; | |
6b0655a2 | 2737 | |
718e3744 | 2738 | /* Only display ip forwarding is enabled or not. */ |
2739 | DEFUN (show_ip_forwarding, | |
2740 | show_ip_forwarding_cmd, | |
2741 | "show ip forwarding", | |
2742 | SHOW_STR | |
2743 | IP_STR | |
2744 | "IP forwarding status\n") | |
2745 | { | |
2746 | int ret; | |
2747 | ||
2748 | ret = ipforward (); | |
2749 | ||
2750 | if (ret == 0) | |
2751 | vty_out (vty, "IP forwarding is off%s", VTY_NEWLINE); | |
2752 | else | |
2753 | vty_out (vty, "IP forwarding is on%s", VTY_NEWLINE); | |
2754 | return CMD_SUCCESS; | |
2755 | } | |
2756 | ||
718e3744 | 2757 | /* Only display ipv6 forwarding is enabled or not. */ |
2758 | DEFUN (show_ipv6_forwarding, | |
2759 | show_ipv6_forwarding_cmd, | |
2760 | "show ipv6 forwarding", | |
2761 | SHOW_STR | |
2762 | "IPv6 information\n" | |
2763 | "Forwarding status\n") | |
2764 | { | |
2765 | int ret; | |
2766 | ||
2767 | ret = ipforward_ipv6 (); | |
2768 | ||
2769 | switch (ret) | |
2770 | { | |
2771 | case -1: | |
2772 | vty_out (vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
2773 | break; | |
2774 | case 0: | |
2775 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2776 | break; | |
2777 | case 1: | |
2778 | vty_out (vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
2779 | break; | |
2780 | default: | |
2781 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2782 | break; | |
2783 | } | |
2784 | return CMD_SUCCESS; | |
2785 | } | |
2786 | ||
55906724 | 2787 | DEFUN (ipv6_forwarding, |
2788 | ipv6_forwarding_cmd, | |
2789 | "ipv6 forwarding", | |
2790 | IPV6_STR | |
2791 | "Turn on IPv6 forwarding") | |
2792 | { | |
2793 | int ret; | |
2794 | ||
41d3fc96 | 2795 | ret = ipforward_ipv6 (); |
b71f00f2 | 2796 | if (ret == 0) |
2797 | ret = ipforward_ipv6_on (); | |
41d3fc96 | 2798 | |
41d3fc96 | 2799 | if (ret == 0) |
55906724 | 2800 | { |
2801 | vty_out (vty, "Can't turn on IPv6 forwarding%s", VTY_NEWLINE); | |
2802 | return CMD_WARNING; | |
2803 | } | |
2804 | ||
2805 | return CMD_SUCCESS; | |
2806 | } | |
2807 | ||
718e3744 | 2808 | DEFUN (no_ipv6_forwarding, |
2809 | no_ipv6_forwarding_cmd, | |
2810 | "no ipv6 forwarding", | |
2811 | NO_STR | |
55906724 | 2812 | IPV6_STR |
2813 | "Turn off IPv6 forwarding") | |
718e3744 | 2814 | { |
2815 | int ret; | |
2816 | ||
41d3fc96 | 2817 | ret = ipforward_ipv6 (); |
b71f00f2 | 2818 | if (ret != 0) |
2819 | ret = ipforward_ipv6_off (); | |
41d3fc96 | 2820 | |
718e3744 | 2821 | if (ret != 0) |
2822 | { | |
2823 | vty_out (vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
2824 | return CMD_WARNING; | |
2825 | } | |
2826 | ||
2827 | return CMD_SUCCESS; | |
2828 | } | |
2829 | ||
718e3744 | 2830 | /* IPForwarding configuration write function. */ |
719e9741 | 2831 | static int |
718e3744 | 2832 | config_write_forwarding (struct vty *vty) |
2833 | { | |
18a6dce6 | 2834 | /* FIXME: Find better place for that. */ |
2835 | router_id_write (vty); | |
2836 | ||
f40dd648 QY |
2837 | if (!ipforward ()) |
2838 | vty_out (vty, "no ip forwarding%s", VTY_NEWLINE); | |
f40dd648 QY |
2839 | if (!ipforward_ipv6 ()) |
2840 | vty_out (vty, "no ipv6 forwarding%s", VTY_NEWLINE); | |
718e3744 | 2841 | vty_out (vty, "!%s", VTY_NEWLINE); |
2842 | return 0; | |
2843 | } | |
2844 | ||
2845 | /* table node for routing tables. */ | |
7fc626de | 2846 | static struct cmd_node forwarding_node = |
718e3744 | 2847 | { |
2848 | FORWARDING_NODE, | |
2849 | "", /* This node has no interface. */ | |
2850 | 1 | |
2851 | }; | |
2852 | ||
711ff0ba USK |
2853 | #ifdef HAVE_FPM |
2854 | /* function to write the fpm config info */ | |
2855 | static int | |
2856 | config_write_fpm (struct vty *vty) | |
2857 | { | |
2858 | return | |
2859 | fpm_remote_srv_write (vty); | |
2860 | } | |
2861 | ||
2862 | /* Zebra node */ | |
2863 | static struct cmd_node zebra_node = | |
2864 | { | |
2865 | ZEBRA_NODE, | |
2866 | "", | |
2867 | 1 | |
2868 | }; | |
2869 | #endif | |
2870 | ||
6b0655a2 | 2871 | |
718e3744 | 2872 | /* Initialisation of zebra and installation of commands. */ |
2873 | void | |
a1ac18c4 | 2874 | zebra_init (void) |
718e3744 | 2875 | { |
2876 | /* Client list init. */ | |
b21b19c5 | 2877 | zebrad.client_list = list_new (); |
718e3744 | 2878 | |
718e3744 | 2879 | /* Install configuration write function. */ |
2880 | install_node (&table_node, config_write_table); | |
2881 | install_node (&forwarding_node, config_write_forwarding); | |
711ff0ba USK |
2882 | #ifdef HAVE_FPM |
2883 | install_node (&zebra_node, config_write_fpm); | |
2884 | #endif | |
718e3744 | 2885 | |
2886 | install_element (VIEW_NODE, &show_ip_forwarding_cmd); | |
647e4f1f | 2887 | install_element (CONFIG_NODE, &ip_forwarding_cmd); |
718e3744 | 2888 | install_element (CONFIG_NODE, &no_ip_forwarding_cmd); |
2889 | install_element (ENABLE_NODE, &show_zebra_client_cmd); | |
04b02fda | 2890 | install_element (ENABLE_NODE, &show_zebra_client_summary_cmd); |
718e3744 | 2891 | |
2892 | #ifdef HAVE_NETLINK | |
2893 | install_element (VIEW_NODE, &show_table_cmd); | |
718e3744 | 2894 | install_element (CONFIG_NODE, &config_table_cmd); |
813d4307 | 2895 | install_element (CONFIG_NODE, &no_config_table_cmd); |
718e3744 | 2896 | #endif /* HAVE_NETLINK */ |
2897 | ||
718e3744 | 2898 | install_element (VIEW_NODE, &show_ipv6_forwarding_cmd); |
55906724 | 2899 | install_element (CONFIG_NODE, &ipv6_forwarding_cmd); |
718e3744 | 2900 | install_element (CONFIG_NODE, &no_ipv6_forwarding_cmd); |
7514fb77 PJ |
2901 | |
2902 | /* Route-map */ | |
2903 | zebra_route_map_init (); | |
718e3744 | 2904 | } |
97be79f9 DO |
2905 | |
2906 | /* Make zebra server socket, wiping any existing one (see bug #403). */ | |
2907 | void | |
b5114685 | 2908 | zebra_zserv_socket_init (char *path) |
97be79f9 DO |
2909 | { |
2910 | #ifdef HAVE_TCP_ZEBRA | |
2911 | zebra_serv (); | |
2912 | #else | |
b5114685 | 2913 | zebra_serv_un (path ? path : ZEBRA_SERV_PATH); |
97be79f9 DO |
2914 | #endif /* HAVE_TCP_ZEBRA */ |
2915 | } |