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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" |
6b0655a2 | 55 | |
718e3744 | 56 | /* Event list of zebra. */ |
57 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
58 | ||
b9df2d25 | 59 | static void zebra_event (enum event event, int sock, struct zserv *client); |
ccf3557b | 60 | |
edd7c245 | 61 | extern struct zebra_privs_t zserv_privs; |
6b0655a2 | 62 | |
719e9741 | 63 | static void zebra_client_close (struct zserv *client); |
ccf3557b | 64 | |
719e9741 | 65 | static int |
66 | zserv_delayed_close(struct thread *thread) | |
ccf3557b | 67 | { |
719e9741 | 68 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 69 | |
719e9741 | 70 | client->t_suicide = NULL; |
71 | zebra_client_close(client); | |
ccf3557b | 72 | return 0; |
73 | } | |
74 | ||
719e9741 | 75 | static int |
76 | zserv_flush_data(struct thread *thread) | |
ccf3557b | 77 | { |
719e9741 | 78 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 79 | |
719e9741 | 80 | client->t_write = NULL; |
81 | if (client->t_suicide) | |
ccf3557b | 82 | { |
719e9741 | 83 | zebra_client_close(client); |
84 | return -1; | |
ccf3557b | 85 | } |
719e9741 | 86 | switch (buffer_flush_available(client->wb, client->sock)) |
ccf3557b | 87 | { |
719e9741 | 88 | case BUFFER_ERROR: |
89 | zlog_warn("%s: buffer_flush_available failed on zserv client fd %d, " | |
90 | "closing", __func__, client->sock); | |
91 | zebra_client_close(client); | |
92 | break; | |
93 | case BUFFER_PENDING: | |
94 | client->t_write = thread_add_write(zebrad.master, zserv_flush_data, | |
95 | client, client->sock); | |
96 | break; | |
97 | case BUFFER_EMPTY: | |
98 | break; | |
ccf3557b | 99 | } |
04b02fda | 100 | |
2176b7c3 | 101 | client->last_write_time = quagga_monotime(); |
719e9741 | 102 | return 0; |
103 | } | |
ccf3557b | 104 | |
fb018d25 | 105 | int |
719e9741 | 106 | zebra_server_send_message(struct zserv *client) |
107 | { | |
108 | if (client->t_suicide) | |
109 | return -1; | |
04b02fda DS |
110 | |
111 | stream_set_getp(client->obuf, 0); | |
80ab3edf | 112 | client->last_write_cmd = stream_getw_from(client->obuf, 6); |
719e9741 | 113 | switch (buffer_write(client->wb, client->sock, STREAM_DATA(client->obuf), |
114 | stream_get_endp(client->obuf))) | |
115 | { | |
116 | case BUFFER_ERROR: | |
117 | zlog_warn("%s: buffer_write failed to zserv client fd %d, closing", | |
118 | __func__, client->sock); | |
119 | /* Schedule a delayed close since many of the functions that call this | |
120 | one do not check the return code. They do not allow for the | |
121 | possibility that an I/O error may have caused the client to be | |
122 | deleted. */ | |
123 | client->t_suicide = thread_add_event(zebrad.master, zserv_delayed_close, | |
124 | client, 0); | |
125 | return -1; | |
719e9741 | 126 | case BUFFER_EMPTY: |
127 | THREAD_OFF(client->t_write); | |
128 | break; | |
129 | case BUFFER_PENDING: | |
130 | THREAD_WRITE_ON(zebrad.master, client->t_write, | |
131 | zserv_flush_data, client, client->sock); | |
132 | break; | |
133 | } | |
04b02fda | 134 | |
2176b7c3 | 135 | client->last_write_time = quagga_monotime(); |
ccf3557b | 136 | return 0; |
137 | } | |
138 | ||
fb018d25 | 139 | void |
7076bb2f | 140 | zserv_create_header (struct stream *s, uint16_t cmd, vrf_id_t vrf_id) |
c1b9800a | 141 | { |
142 | /* length placeholder, caller can update */ | |
143 | stream_putw (s, ZEBRA_HEADER_SIZE); | |
144 | stream_putc (s, ZEBRA_HEADER_MARKER); | |
145 | stream_putc (s, ZSERV_VERSION); | |
7076bb2f | 146 | stream_putw (s, vrf_id); |
c1b9800a | 147 | stream_putw (s, cmd); |
148 | } | |
149 | ||
51d4ef83 JB |
150 | static void |
151 | zserv_encode_interface (struct stream *s, struct interface *ifp) | |
152 | { | |
153 | /* Interface information. */ | |
154 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
155 | stream_putl (s, ifp->ifindex); | |
156 | stream_putc (s, ifp->status); | |
157 | stream_putq (s, ifp->flags); | |
244c1cdc DS |
158 | stream_putc (s, ifp->ptm_enable); |
159 | stream_putc (s, ifp->ptm_status); | |
51d4ef83 JB |
160 | stream_putl (s, ifp->metric); |
161 | stream_putl (s, ifp->mtu); | |
162 | stream_putl (s, ifp->mtu6); | |
163 | stream_putl (s, ifp->bandwidth); | |
8ccc7e80 | 164 | stream_putl (s, ifp->ll_type); |
51d4ef83 JB |
165 | stream_putl (s, ifp->hw_addr_len); |
166 | if (ifp->hw_addr_len) | |
167 | stream_put (s, ifp->hw_addr, ifp->hw_addr_len); | |
51d4ef83 | 168 | |
16f1b9ee OD |
169 | /* Then, Traffic Engineering parameters if any */ |
170 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) | |
171 | { | |
172 | stream_putc (s, 1); | |
173 | zebra_interface_link_params_write (s, ifp); | |
174 | } | |
175 | else | |
176 | stream_putc (s, 0); | |
177 | ||
51d4ef83 JB |
178 | /* Write packet size. */ |
179 | stream_putw_at (s, 0, stream_get_endp (s)); | |
180 | } | |
181 | ||
12f6fb97 | 182 | static void |
9e1bf607 | 183 | zserv_encode_vrf (struct stream *s, struct zebra_vrf *zvrf) |
12f6fb97 DS |
184 | { |
185 | /* Interface information. */ | |
9e1bf607 | 186 | stream_put (s, zvrf->name, VRF_NAMSIZ); |
12f6fb97 DS |
187 | |
188 | /* Write packet size. */ | |
189 | stream_putw_at (s, 0, stream_get_endp (s)); | |
190 | } | |
191 | ||
718e3744 | 192 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 193 | /* |
194 | * This function is called in the following situations: | |
195 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
196 | * from the client. | |
197 | * - at startup, when zebra figures out the available interfaces | |
198 | * - when an interface is added (where support for | |
199 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
200 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
201 | * received) | |
202 | */ | |
718e3744 | 203 | int |
204 | zsend_interface_add (struct zserv *client, struct interface *ifp) | |
205 | { | |
206 | struct stream *s; | |
207 | ||
718e3744 | 208 | s = client->obuf; |
209 | stream_reset (s); | |
210 | ||
7076bb2f | 211 | zserv_create_header (s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); |
51d4ef83 | 212 | zserv_encode_interface (s, ifp); |
718e3744 | 213 | |
04b02fda | 214 | client->ifadd_cnt++; |
719e9741 | 215 | return zebra_server_send_message(client); |
718e3744 | 216 | } |
217 | ||
218 | /* Interface deletion from zebra daemon. */ | |
219 | int | |
220 | zsend_interface_delete (struct zserv *client, struct interface *ifp) | |
221 | { | |
222 | struct stream *s; | |
223 | ||
718e3744 | 224 | s = client->obuf; |
225 | stream_reset (s); | |
718e3744 | 226 | |
7076bb2f | 227 | zserv_create_header (s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); |
51d4ef83 | 228 | zserv_encode_interface (s, ifp); |
718e3744 | 229 | |
04b02fda | 230 | client->ifdel_cnt++; |
719e9741 | 231 | return zebra_server_send_message (client); |
718e3744 | 232 | } |
233 | ||
12f6fb97 | 234 | int |
9e1bf607 | 235 | zsend_vrf_add (struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 DS |
236 | { |
237 | struct stream *s; | |
238 | ||
239 | s = client->obuf; | |
240 | stream_reset (s); | |
241 | ||
9e1bf607 DS |
242 | zserv_create_header (s, ZEBRA_VRF_ADD, zvrf->vrf_id); |
243 | zserv_encode_vrf (s, zvrf); | |
12f6fb97 DS |
244 | |
245 | client->vrfadd_cnt++; | |
246 | return zebra_server_send_message(client); | |
247 | } | |
248 | ||
249 | /* VRF deletion from zebra daemon. */ | |
250 | int | |
9e1bf607 | 251 | zsend_vrf_delete (struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 DS |
252 | { |
253 | struct stream *s; | |
254 | ||
255 | s = client->obuf; | |
256 | stream_reset (s); | |
257 | ||
9e1bf607 DS |
258 | zserv_create_header (s, ZEBRA_VRF_DELETE, zvrf->vrf_id); |
259 | zserv_encode_vrf (s, zvrf); | |
12f6fb97 DS |
260 | |
261 | client->vrfdel_cnt++; | |
262 | return zebra_server_send_message (client); | |
263 | } | |
264 | ||
16f1b9ee OD |
265 | int |
266 | zsend_interface_link_params (struct zserv *client, struct interface *ifp) | |
267 | { | |
268 | struct stream *s; | |
269 | ||
270 | /* Check this client need interface information. */ | |
271 | if (! client->ifinfo) | |
272 | return 0; | |
273 | ||
274 | if (!ifp->link_params) | |
275 | return 0; | |
276 | s = client->obuf; | |
277 | stream_reset (s); | |
278 | ||
279 | zserv_create_header (s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); | |
280 | ||
281 | /* Add Interface Index */ | |
282 | stream_putl (s, ifp->ifindex); | |
283 | ||
284 | /* Then TE Link Parameters */ | |
285 | if (zebra_interface_link_params_write (s, ifp) == 0) | |
286 | return 0; | |
287 | ||
288 | /* Write packet size. */ | |
289 | stream_putw_at (s, 0, stream_get_endp (s)); | |
290 | ||
291 | return zebra_server_send_message (client); | |
292 | } | |
293 | ||
b9df2d25 | 294 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
295 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
296 | * | |
297 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
298 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
299 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
300 | * sent from zebra to the client | |
301 | * - redistribute new address info to all clients in the following situations | |
302 | * - at startup, when zebra figures out the available interfaces | |
303 | * - when an interface is added (where support for | |
304 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
305 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
306 | * received) | |
307 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
308 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
309 | * - when an RTM_NEWADDR message is received from the kernel, | |
310 | * | |
311 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
312 | * | |
313 | * zsend_interface_address(DELETE) | |
314 | * ^ | |
315 | * | | |
316 | * zebra_interface_address_delete_update | |
317 | * ^ ^ ^ | |
6eb8827d | 318 | * | | if_delete_update |
319 | * | | | |
b9df2d25 | 320 | * ip_address_uninstall connected_delete_ipv4 |
321 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
322 | * ^ ^ | |
323 | * | | | |
324 | * | RTM_NEWADDR on routing/netlink socket | |
325 | * | | |
326 | * vty commands: | |
327 | * "no ip address A.B.C.D/M [label LINE]" | |
328 | * "no ip address A.B.C.D/M secondary" | |
329 | * ["no ipv6 address X:X::X:X/M"] | |
330 | * | |
331 | */ | |
718e3744 | 332 | int |
b9df2d25 | 333 | zsend_interface_address (int cmd, struct zserv *client, |
334 | struct interface *ifp, struct connected *ifc) | |
718e3744 | 335 | { |
336 | int blen; | |
337 | struct stream *s; | |
338 | struct prefix *p; | |
339 | ||
718e3744 | 340 | s = client->obuf; |
341 | stream_reset (s); | |
c1b9800a | 342 | |
7076bb2f | 343 | zserv_create_header (s, cmd, ifp->vrf_id); |
718e3744 | 344 | stream_putl (s, ifp->ifindex); |
345 | ||
346 | /* Interface address flag. */ | |
347 | stream_putc (s, ifc->flags); | |
348 | ||
349 | /* Prefix information. */ | |
350 | p = ifc->address; | |
351 | stream_putc (s, p->family); | |
352 | blen = prefix_blen (p); | |
353 | stream_put (s, &p->u.prefix, blen); | |
b9df2d25 | 354 | |
355 | /* | |
356 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
357 | * but zebra_interface_address_delete_read() in the gnu version | |
358 | * expects to find it | |
359 | */ | |
718e3744 | 360 | stream_putc (s, p->prefixlen); |
361 | ||
362 | /* Destination. */ | |
363 | p = ifc->destination; | |
364 | if (p) | |
365 | stream_put (s, &p->u.prefix, blen); | |
366 | else | |
367 | stream_put (s, NULL, blen); | |
368 | ||
369 | /* Write packet size. */ | |
370 | stream_putw_at (s, 0, stream_get_endp (s)); | |
371 | ||
04b02fda | 372 | client->connected_rt_add_cnt++; |
719e9741 | 373 | return zebra_server_send_message(client); |
718e3744 | 374 | } |
375 | ||
a80beece DS |
376 | static int |
377 | zsend_interface_nbr_address (int cmd, struct zserv *client, | |
378 | struct interface *ifp, struct nbr_connected *ifc) | |
379 | { | |
380 | int blen; | |
381 | struct stream *s; | |
382 | struct prefix *p; | |
383 | ||
a80beece DS |
384 | s = client->obuf; |
385 | stream_reset (s); | |
386 | ||
7076bb2f | 387 | zserv_create_header (s, cmd, ifp->vrf_id); |
a80beece DS |
388 | stream_putl (s, ifp->ifindex); |
389 | ||
390 | /* Prefix information. */ | |
391 | p = ifc->address; | |
392 | stream_putc (s, p->family); | |
393 | blen = prefix_blen (p); | |
394 | stream_put (s, &p->u.prefix, blen); | |
395 | ||
396 | /* | |
397 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
398 | * but zebra_interface_address_delete_read() in the gnu version | |
399 | * expects to find it | |
400 | */ | |
401 | stream_putc (s, p->prefixlen); | |
402 | ||
403 | /* Write packet size. */ | |
404 | stream_putw_at (s, 0, stream_get_endp (s)); | |
405 | ||
406 | return zebra_server_send_message(client); | |
407 | } | |
408 | ||
409 | /* Interface address addition. */ | |
410 | static void | |
411 | zebra_interface_nbr_address_add_update (struct interface *ifp, | |
412 | struct nbr_connected *ifc) | |
413 | { | |
414 | struct listnode *node, *nnode; | |
415 | struct zserv *client; | |
416 | struct prefix *p; | |
417 | ||
418 | if (IS_ZEBRA_DEBUG_EVENT) | |
419 | { | |
420 | char buf[INET6_ADDRSTRLEN]; | |
421 | ||
422 | p = ifc->address; | |
423 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
424 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
425 | p->prefixlen, ifc->ifp->name); | |
426 | } | |
427 | ||
428 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
4fe51714 | 429 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, ifp, ifc); |
a80beece DS |
430 | } |
431 | ||
432 | /* Interface address deletion. */ | |
433 | static void | |
434 | zebra_interface_nbr_address_delete_update (struct interface *ifp, | |
435 | struct nbr_connected *ifc) | |
436 | { | |
437 | struct listnode *node, *nnode; | |
438 | struct zserv *client; | |
439 | struct prefix *p; | |
440 | ||
441 | if (IS_ZEBRA_DEBUG_EVENT) | |
442 | { | |
443 | char buf[INET6_ADDRSTRLEN]; | |
444 | ||
445 | p = ifc->address; | |
446 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
447 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
448 | p->prefixlen, ifc->ifp->name); | |
449 | } | |
450 | ||
451 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
4fe51714 | 452 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, client, ifp, ifc); |
a80beece DS |
453 | } |
454 | ||
c8e264b6 | 455 | /* Send addresses on interface to client */ |
456 | int | |
457 | zsend_interface_addresses (struct zserv *client, struct interface *ifp) | |
458 | { | |
459 | struct listnode *cnode, *cnnode; | |
460 | struct connected *c; | |
461 | struct nbr_connected *nc; | |
462 | ||
463 | /* Send interface addresses. */ | |
464 | for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, c)) | |
465 | { | |
466 | if (!CHECK_FLAG (c->conf, ZEBRA_IFC_REAL)) | |
467 | continue; | |
468 | ||
469 | if (zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
470 | ifp, c) < 0) | |
471 | return -1; | |
472 | } | |
473 | ||
474 | /* Send interface neighbors. */ | |
475 | for (ALL_LIST_ELEMENTS (ifp->nbr_connected, cnode, cnnode, nc)) | |
476 | { | |
477 | if (zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
478 | client, ifp, nc) < 0) | |
479 | return -1; | |
480 | } | |
481 | ||
482 | return 0; | |
483 | } | |
484 | ||
485 | /* Notify client about interface moving from one VRF to another. | |
486 | * Whether client is interested in old and new VRF is checked by caller. | |
487 | */ | |
488 | int | |
489 | zsend_interface_vrf_update (struct zserv *client, struct interface *ifp, | |
490 | vrf_id_t vrf_id) | |
491 | { | |
492 | struct stream *s; | |
493 | ||
494 | s = client->obuf; | |
495 | stream_reset (s); | |
496 | ||
497 | zserv_create_header (s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); | |
498 | ||
499 | /* Fill in the ifIndex of the interface and its new VRF (id) */ | |
500 | stream_putl (s, ifp->ifindex); | |
501 | stream_putw (s, vrf_id); | |
502 | ||
503 | /* Write packet size. */ | |
504 | stream_putw_at (s, 0, stream_get_endp (s)); | |
505 | ||
506 | client->if_vrfchg_cnt++; | |
507 | return zebra_server_send_message(client); | |
508 | } | |
509 | ||
1d20ccf3 | 510 | /* Add new nbr connected IPv6 address */ |
a80beece | 511 | void |
1d20ccf3 | 512 | nbr_connected_add_ipv6 (struct interface *ifp, struct in6_addr *address) |
a80beece DS |
513 | { |
514 | struct nbr_connected *ifc; | |
515 | struct prefix p; | |
516 | ||
517 | p.family = AF_INET6; | |
518 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
1d20ccf3 | 519 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
a80beece DS |
520 | |
521 | if (!(ifc = listnode_head(ifp->nbr_connected))) | |
522 | { | |
523 | /* new addition */ | |
524 | ifc = nbr_connected_new (); | |
525 | ifc->address = prefix_new(); | |
526 | ifc->ifp = ifp; | |
527 | listnode_add (ifp->nbr_connected, ifc); | |
528 | } | |
529 | ||
530 | prefix_copy(ifc->address, &p); | |
531 | ||
532 | zebra_interface_nbr_address_add_update (ifp, ifc); | |
5c610faf DS |
533 | |
534 | if_nbr_ipv6ll_to_ipv4ll_neigh_update (ifp, address, 1); | |
a80beece DS |
535 | } |
536 | ||
537 | void | |
1d20ccf3 | 538 | nbr_connected_delete_ipv6 (struct interface *ifp, struct in6_addr *address) |
a80beece DS |
539 | { |
540 | struct nbr_connected *ifc; | |
541 | struct prefix p; | |
542 | ||
543 | p.family = AF_INET6; | |
544 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
1d20ccf3 | 545 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
a80beece DS |
546 | |
547 | ifc = nbr_connected_check(ifp, &p); | |
548 | if (!ifc) | |
549 | return; | |
550 | ||
551 | listnode_delete (ifp->nbr_connected, ifc); | |
552 | ||
553 | zebra_interface_nbr_address_delete_update (ifp, ifc); | |
554 | ||
5c610faf DS |
555 | if_nbr_ipv6ll_to_ipv4ll_neigh_update (ifp, address, 0); |
556 | ||
a80beece DS |
557 | nbr_connected_free (ifc); |
558 | } | |
559 | ||
b9df2d25 | 560 | /* |
561 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
562 | * ZEBRA_INTERFACE_DOWN. | |
563 | * | |
564 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
565 | * the clients in one of 2 situations: | |
566 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
567 | * - a vty command modifying the bandwidth of an interface is received. | |
568 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
569 | */ | |
718e3744 | 570 | int |
b9df2d25 | 571 | zsend_interface_update (int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 572 | { |
573 | struct stream *s; | |
574 | ||
718e3744 | 575 | s = client->obuf; |
576 | stream_reset (s); | |
577 | ||
7076bb2f | 578 | zserv_create_header (s, cmd, ifp->vrf_id); |
51d4ef83 | 579 | zserv_encode_interface (s, ifp); |
718e3744 | 580 | |
04b02fda DS |
581 | if (cmd == ZEBRA_INTERFACE_UP) |
582 | client->ifup_cnt++; | |
583 | else | |
584 | client->ifdown_cnt++; | |
585 | ||
719e9741 | 586 | return zebra_server_send_message(client); |
718e3744 | 587 | } |
588 | ||
b9df2d25 | 589 | /* |
5048fe14 | 590 | * This is the new function to announce and withdraw redistributed routes, used |
591 | * by Zebra. This is the old zsend_route_multipath() function. That function | |
592 | * was duplicating code to send a lot of information that was essentially thrown | |
593 | * away or ignored by the receiver. This is the leaner function that is not a | |
594 | * duplicate of the zapi_ipv4_route_add/del. | |
b9df2d25 | 595 | * |
5048fe14 | 596 | * The primary difference is that this function merely sends a single NH instead of |
597 | * all the nexthops. | |
b9df2d25 | 598 | */ |
718e3744 | 599 | int |
5048fe14 | 600 | zsend_redistribute_route (int cmd, struct zserv *client, struct prefix *p, |
601 | struct rib *rib) | |
718e3744 | 602 | { |
603 | int psize; | |
604 | struct stream *s; | |
605 | struct nexthop *nexthop; | |
1dcb5172 | 606 | unsigned long nhnummark = 0, messmark = 0; |
b9df2d25 | 607 | int nhnum = 0; |
1dcb5172 | 608 | u_char zapi_flags = 0; |
5048fe14 | 609 | struct nexthop dummy_nh; |
610 | ||
7076bb2f FL |
611 | /* Came from VRF lib patch, is this really needed? callers of this routine |
612 | do check for redist.., so may be its not needed. | |
613 | Check this client need this route. | |
614 | if (!vrf_bitmap_check (client->redist[family2afi(p->family)][rib->type], | |
615 | rib->vrf_id) && | |
616 | !(is_default (p) && | |
617 | vrf_bitmap_check (client->redist_default, rib->vrf_id))) | |
618 | return 0; | |
619 | */ | |
620 | ||
718e3744 | 621 | s = client->obuf; |
622 | stream_reset (s); | |
5048fe14 | 623 | memset(&dummy_nh, 0, sizeof(struct nexthop)); |
624 | ||
7076bb2f FL |
625 | zserv_create_header (s, cmd, rib->vrf_id); |
626 | ||
c1b9800a | 627 | /* Put type and nexthop. */ |
718e3744 | 628 | stream_putc (s, rib->type); |
7c8ff89e | 629 | stream_putw (s, rib->instance); |
718e3744 | 630 | stream_putc (s, rib->flags); |
5048fe14 | 631 | |
1dcb5172 | 632 | /* marker for message flags field */ |
633 | messmark = stream_get_endp (s); | |
634 | stream_putc (s, 0); | |
718e3744 | 635 | |
636 | /* Prefix. */ | |
637 | psize = PSIZE (p->prefixlen); | |
638 | stream_putc (s, p->prefixlen); | |
b9df2d25 | 639 | stream_write (s, (u_char *) & p->u.prefix, psize); |
640 | ||
718e3744 | 641 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
642 | { | |
5048fe14 | 643 | /* We don't send any nexthops when there's a multipath */ |
644 | if (rib->nexthop_active_num > 1) | |
645 | { | |
646 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
647 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
648 | ||
649 | stream_putc(s, 1); | |
650 | if (p->family == AF_INET) | |
651 | { | |
652 | stream_put_in_addr (s, &dummy_nh.gate.ipv4); | |
653 | } | |
654 | else if (p->family == AF_INET6) | |
655 | { | |
656 | stream_write (s, (u_char *) &dummy_nh.gate.ipv6, 16); | |
657 | } | |
658 | else | |
659 | { | |
660 | /* We don't handle anything else now, abort */ | |
661 | zlog_err("%s: Unable to redistribute route of unknown family, %d\n", | |
662 | __func__, p->family); | |
663 | return -1; | |
664 | } | |
665 | stream_putc (s, 1); | |
666 | stream_putl (s, 0); /* dummy ifindex */ | |
667 | break; | |
668 | } | |
669 | ||
fa713d9e CF |
670 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
671 | || nexthop_has_fib_child(nexthop)) | |
b9df2d25 | 672 | { |
1dcb5172 | 673 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); |
674 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
1dcb5172 | 675 | if (nhnummark == 0) |
676 | { | |
677 | nhnummark = stream_get_endp (s); | |
678 | stream_putc (s, 1); /* placeholder */ | |
679 | } | |
b9df2d25 | 680 | nhnum++; |
681 | ||
682 | switch(nexthop->type) | |
683 | { | |
684 | case NEXTHOP_TYPE_IPV4: | |
685 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
686 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
687 | break; | |
b9df2d25 | 688 | case NEXTHOP_TYPE_IPV6: |
689 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
5048fe14 | 690 | /* Only BGP supports IPv4 prefix with IPv6 NH, so kill this */ |
691 | if (p->family == AF_INET) | |
692 | stream_put_in_addr(s, &dummy_nh.gate.ipv4); | |
693 | else | |
694 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); | |
b9df2d25 | 695 | break; |
b9df2d25 | 696 | default: |
5048fe14 | 697 | if (cmd == ZEBRA_REDISTRIBUTE_IPV4_ADD |
698 | || cmd == ZEBRA_REDISTRIBUTE_IPV4_DEL) | |
b9df2d25 | 699 | { |
700 | struct in_addr empty; | |
44983cf8 | 701 | memset (&empty, 0, sizeof (struct in_addr)); |
b9df2d25 | 702 | stream_write (s, (u_char *) &empty, IPV4_MAX_BYTELEN); |
703 | } | |
704 | else | |
705 | { | |
706 | struct in6_addr empty; | |
707 | memset (&empty, 0, sizeof (struct in6_addr)); | |
708 | stream_write (s, (u_char *) &empty, IPV6_MAX_BYTELEN); | |
709 | } | |
710 | } | |
711 | ||
712 | /* Interface index. */ | |
713 | stream_putc (s, 1); | |
714 | stream_putl (s, nexthop->ifindex); | |
715 | ||
716 | break; | |
717 | } | |
718e3744 | 718 | } |
719 | ||
720 | /* Metric */ | |
5048fe14 | 721 | if (cmd == ZEBRA_REDISTRIBUTE_IPV4_ADD || cmd == ZEBRA_REDISTRIBUTE_IPV6_ADD) |
1dcb5172 | 722 | { |
fbf5d033 | 723 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_DISTANCE); |
724 | stream_putc (s, rib->distance); | |
1dcb5172 | 725 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_METRIC); |
726 | stream_putl (s, rib->metric); | |
0d9551dc DS |
727 | |
728 | /* tag */ | |
729 | if (rib->tag) | |
730 | { | |
731 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
732 | stream_putw(s, rib->tag); | |
733 | } | |
c50ca33a TT |
734 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_MTU); |
735 | stream_putl (s, rib->mtu); | |
1dcb5172 | 736 | } |
5048fe14 | 737 | |
1dcb5172 | 738 | /* write real message flags value */ |
739 | stream_putc_at (s, messmark, zapi_flags); | |
5048fe14 | 740 | |
b9df2d25 | 741 | /* Write next-hop number */ |
742 | if (nhnummark) | |
c1eaa442 | 743 | stream_putc_at (s, nhnummark, nhnum); |
5048fe14 | 744 | |
718e3744 | 745 | /* Write packet size. */ |
746 | stream_putw_at (s, 0, stream_get_endp (s)); | |
747 | ||
719e9741 | 748 | return zebra_server_send_message(client); |
718e3744 | 749 | } |
750 | ||
10fbd59a DS |
751 | static int |
752 | zsend_write_nexthop (struct stream *s, struct nexthop *nexthop) | |
753 | { | |
754 | stream_putc (s, nexthop->type); | |
755 | switch (nexthop->type) | |
756 | { | |
757 | case NEXTHOP_TYPE_IPV4: | |
758 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
759 | break; | |
760 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
761 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
762 | stream_putl (s, nexthop->ifindex); | |
763 | break; | |
764 | case NEXTHOP_TYPE_IPV6: | |
765 | stream_put (s, &nexthop->gate.ipv6, 16); | |
766 | break; | |
767 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
768 | stream_put (s, &nexthop->gate.ipv6, 16); | |
769 | stream_putl (s, nexthop->ifindex); | |
770 | break; | |
771 | case NEXTHOP_TYPE_IFINDEX: | |
772 | stream_putl (s, nexthop->ifindex); | |
773 | break; | |
774 | default: | |
775 | /* do nothing */ | |
776 | break; | |
777 | } | |
778 | return 1; | |
779 | } | |
780 | ||
fb018d25 DS |
781 | /* Nexthop register */ |
782 | static int | |
078430f6 | 783 | zserv_rnh_register (struct zserv *client, int sock, u_short length, |
d651649e | 784 | rnh_type_t type, struct zebra_vrf *zvrf) |
fb018d25 DS |
785 | { |
786 | struct rnh *rnh; | |
787 | struct stream *s; | |
788 | struct prefix p; | |
789 | u_short l = 0; | |
078430f6 | 790 | u_char flags = 0; |
fb018d25 DS |
791 | |
792 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 DS |
793 | zlog_debug("rnh_register msg from client %s: length=%d, type=%s\n", |
794 | zebra_route_string(client->proto), length, | |
795 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route"); | |
fb018d25 DS |
796 | |
797 | s = client->ibuf; | |
798 | ||
2176b7c3 | 799 | client->nh_reg_time = quagga_monotime(); |
078430f6 | 800 | |
fb018d25 DS |
801 | while (l < length) |
802 | { | |
078430f6 | 803 | flags = stream_getc(s); |
fb018d25 DS |
804 | p.family = stream_getw(s); |
805 | p.prefixlen = stream_getc(s); | |
fc9a856f | 806 | l += 4; |
078430f6 DS |
807 | if (p.family == AF_INET) |
808 | { | |
809 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
810 | l += IPV4_MAX_BYTELEN; | |
811 | } | |
812 | else if (p.family == AF_INET6) | |
813 | { | |
814 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
815 | l += IPV6_MAX_BYTELEN; | |
816 | } | |
817 | else | |
818 | { | |
819 | zlog_err("rnh_register: Received unknown family type %d\n", | |
820 | p.family); | |
821 | return -1; | |
822 | } | |
d651649e | 823 | rnh = zebra_add_rnh(&p, zvrf->vrf_id, type); |
078430f6 DS |
824 | if (type == RNH_NEXTHOP_TYPE) |
825 | { | |
826 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
827 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
828 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
829 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
830 | } | |
831 | else if (type == RNH_IMPORT_CHECK_TYPE) | |
832 | { | |
833 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
834 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
835 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
836 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
837 | } | |
838 | ||
d651649e | 839 | zebra_add_rnh_client(rnh, client, type, zvrf->vrf_id); |
078430f6 | 840 | /* Anything not AF_INET/INET6 has been filtered out above */ |
d651649e | 841 | zebra_evaluate_rnh(zvrf->vrf_id, p.family, 1, type, &p); |
fb018d25 | 842 | } |
fb018d25 DS |
843 | return 0; |
844 | } | |
845 | ||
846 | /* Nexthop register */ | |
847 | static int | |
078430f6 | 848 | zserv_rnh_unregister (struct zserv *client, int sock, u_short length, |
d651649e | 849 | rnh_type_t type, struct zebra_vrf *zvrf) |
fb018d25 DS |
850 | { |
851 | struct rnh *rnh; | |
852 | struct stream *s; | |
853 | struct prefix p; | |
854 | u_short l = 0; | |
855 | ||
856 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 | 857 | zlog_debug("rnh_unregister msg from client %s: length=%d\n", |
fb018d25 DS |
858 | zebra_route_string(client->proto), length); |
859 | ||
860 | s = client->ibuf; | |
861 | ||
862 | while (l < length) | |
863 | { | |
4e3afb14 | 864 | (void)stream_getc(s); //Connected or not. Not used in this function |
fb018d25 DS |
865 | p.family = stream_getw(s); |
866 | p.prefixlen = stream_getc(s); | |
fc9a856f | 867 | l += 4; |
078430f6 DS |
868 | if (p.family == AF_INET) |
869 | { | |
870 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
871 | l += IPV4_MAX_BYTELEN; | |
872 | } | |
873 | else if (p.family == AF_INET6) | |
874 | { | |
875 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
876 | l += IPV6_MAX_BYTELEN; | |
877 | } | |
878 | else | |
879 | { | |
880 | zlog_err("rnh_register: Received unknown family type %d\n", | |
881 | p.family); | |
882 | return -1; | |
883 | } | |
d651649e | 884 | rnh = zebra_lookup_rnh(&p, zvrf->vrf_id, type); |
fb018d25 | 885 | if (rnh) |
04b02fda | 886 | { |
2176b7c3 | 887 | client->nh_dereg_time = quagga_monotime(); |
078430f6 | 888 | zebra_remove_rnh_client(rnh, client, type); |
04b02fda | 889 | } |
fb018d25 DS |
890 | } |
891 | return 0; | |
892 | } | |
893 | ||
6f61a5a3 EM |
894 | /* |
895 | Modified version of zsend_ipv4_nexthop_lookup(): | |
896 | Query unicast rib if nexthop is not found on mrib. | |
897 | Returns both route metric and protocol distance. | |
898 | */ | |
899 | static int | |
4623d897 | 900 | zsend_ipv4_nexthop_lookup_mrib (struct zserv *client, struct in_addr addr, struct rib *rib, struct zebra_vrf *zvrf) |
6f61a5a3 EM |
901 | { |
902 | struct stream *s; | |
6f61a5a3 EM |
903 | unsigned long nump; |
904 | u_char num; | |
905 | struct nexthop *nexthop; | |
906 | ||
6f61a5a3 EM |
907 | /* Get output stream. */ |
908 | s = client->obuf; | |
909 | stream_reset (s); | |
910 | ||
911 | /* Fill in result. */ | |
912 | zserv_create_header (s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf->vrf_id); | |
913 | stream_put_in_addr (s, &addr); | |
914 | ||
915 | if (rib) | |
916 | { | |
917 | stream_putc (s, rib->distance); | |
918 | stream_putl (s, rib->metric); | |
919 | num = 0; | |
920 | nump = stream_get_endp(s); /* remember position for nexthop_num */ | |
921 | stream_putc (s, 0); /* reserve room for nexthop_num */ | |
922 | /* Only non-recursive routes are elegible to resolve the nexthop we | |
923 | * are looking up. Therefore, we will just iterate over the top | |
924 | * chain of nexthops. */ | |
925 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
926 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
10fbd59a | 927 | num += zsend_write_nexthop (s, nexthop); |
6f61a5a3 EM |
928 | |
929 | stream_putc_at (s, nump, num); /* store nexthop_num */ | |
930 | } | |
931 | else | |
932 | { | |
933 | stream_putc (s, 0); /* distance */ | |
934 | stream_putl (s, 0); /* metric */ | |
935 | stream_putc (s, 0); /* nexthop_num */ | |
936 | } | |
937 | ||
938 | stream_putw_at (s, 0, stream_get_endp (s)); | |
939 | ||
940 | return zebra_server_send_message(client); | |
941 | } | |
942 | ||
18a6dce6 | 943 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
944 | int | |
c6ffe645 FL |
945 | zsend_router_id_update (struct zserv *client, struct prefix *p, |
946 | vrf_id_t vrf_id) | |
18a6dce6 | 947 | { |
948 | struct stream *s; | |
949 | int blen; | |
950 | ||
951 | /* Check this client need interface information. */ | |
7076bb2f | 952 | if (! vrf_bitmap_check (client->ridinfo, vrf_id)) |
719e9741 | 953 | return 0; |
18a6dce6 | 954 | |
955 | s = client->obuf; | |
956 | stream_reset (s); | |
957 | ||
18a6dce6 | 958 | /* Message type. */ |
7076bb2f | 959 | zserv_create_header (s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); |
18a6dce6 | 960 | |
961 | /* Prefix information. */ | |
962 | stream_putc (s, p->family); | |
963 | blen = prefix_blen (p); | |
964 | stream_put (s, &p->u.prefix, blen); | |
965 | stream_putc (s, p->prefixlen); | |
966 | ||
967 | /* Write packet size. */ | |
968 | stream_putw_at (s, 0, stream_get_endp (s)); | |
969 | ||
719e9741 | 970 | return zebra_server_send_message(client); |
18a6dce6 | 971 | } |
6b0655a2 | 972 | |
718e3744 | 973 | /* Register zebra server interface information. Send current all |
974 | interface and address information. */ | |
719e9741 | 975 | static int |
d651649e | 976 | zread_interface_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 977 | { |
1eb8ef25 | 978 | struct listnode *ifnode, *ifnnode; |
4fe51714 | 979 | vrf_iter_t iter; |
718e3744 | 980 | struct interface *ifp; |
4fe51714 | 981 | struct zebra_vrf *zvrf_iter; |
718e3744 | 982 | |
983 | /* Interface information is needed. */ | |
d651649e | 984 | vrf_bitmap_set (client->ifinfo, zvrf->vrf_id); |
718e3744 | 985 | |
4fe51714 | 986 | for (iter = vrf_first (); iter != VRF_ITER_INVALID; iter = vrf_next (iter)) |
718e3744 | 987 | { |
4fe51714 DS |
988 | zvrf_iter = vrf_iter2info (iter); |
989 | for (ALL_LIST_ELEMENTS (vrf_iflist (zvrf_iter->vrf_id), ifnode, ifnnode, ifp)) | |
990 | { | |
991 | /* Skip pseudo interface. */ | |
992 | if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
993 | continue; | |
718e3744 | 994 | |
4fe51714 DS |
995 | if (zsend_interface_add (client, ifp) < 0) |
996 | return -1; | |
718e3744 | 997 | |
4fe51714 DS |
998 | if (zsend_interface_addresses (client, ifp) < 0) |
999 | return -1; | |
1000 | } | |
718e3744 | 1001 | } |
719e9741 | 1002 | return 0; |
718e3744 | 1003 | } |
1004 | ||
1005 | /* Unregister zebra server interface information. */ | |
719e9741 | 1006 | static int |
d651649e | 1007 | zread_interface_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1008 | { |
d651649e | 1009 | vrf_bitmap_unset (client->ifinfo, zvrf->vrf_id); |
719e9741 | 1010 | return 0; |
718e3744 | 1011 | } |
1012 | ||
6878b9db | 1013 | void |
4f87aceb | 1014 | zserv_nexthop_num_warn (const char *caller, const struct prefix *p, const unsigned int nexthop_num) |
6878b9db | 1015 | { |
7c5d2b76 | 1016 | if (nexthop_num > MULTIPATH_NUM) |
6878b9db | 1017 | { |
4690c7d7 DS |
1018 | char buff[PREFIX2STR_BUFFER]; |
1019 | prefix2str(p, buff, sizeof (buff)); | |
6878b9db DS |
1020 | zlog_warn("%s: Prefix %s has %d nexthops, but we can only use the first %d", |
1021 | caller, buff, nexthop_num, MULTIPATH_NUM); | |
1022 | } | |
1023 | } | |
1024 | ||
718e3744 | 1025 | /* This function support multiple nexthop. */ |
b9df2d25 | 1026 | /* |
1027 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update rib and | |
1028 | * add kernel route. | |
1029 | */ | |
719e9741 | 1030 | static int |
d651649e | 1031 | zread_ipv4_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1032 | { |
1033 | int i; | |
1034 | struct rib *rib; | |
b4c034b0 | 1035 | struct prefix p; |
718e3744 | 1036 | u_char message; |
1037 | struct in_addr nexthop; | |
1038 | u_char nexthop_num; | |
1039 | u_char nexthop_type; | |
1040 | struct stream *s; | |
b892f1dd | 1041 | ifindex_t ifindex; |
d44ca835 | 1042 | safi_t safi; |
04b02fda | 1043 | int ret; |
718e3744 | 1044 | |
1045 | /* Get input stream. */ | |
1046 | s = client->ibuf; | |
1047 | ||
1048 | /* Allocate new rib. */ | |
4d38fdb4 | 1049 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); |
1050 | ||
718e3744 | 1051 | /* Type, flags, message. */ |
1052 | rib->type = stream_getc (s); | |
7c8ff89e | 1053 | rib->instance = stream_getw (s); |
718e3744 | 1054 | rib->flags = stream_getc (s); |
b9df2d25 | 1055 | message = stream_getc (s); |
cddf391b | 1056 | safi = stream_getw (s); |
718e3744 | 1057 | rib->uptime = time (NULL); |
1058 | ||
1059 | /* IPv4 prefix. */ | |
1060 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1061 | p.family = AF_INET; | |
1062 | p.prefixlen = stream_getc (s); | |
b4c034b0 | 1063 | stream_get (&p.u.prefix4, s, PSIZE (p.prefixlen)); |
718e3744 | 1064 | |
78104b9b | 1065 | /* VRF ID */ |
d651649e | 1066 | rib->vrf_id = zvrf->vrf_id; |
78104b9b | 1067 | |
718e3744 | 1068 | /* Nexthop parse. */ |
1069 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1070 | { | |
1071 | nexthop_num = stream_getc (s); | |
6878b9db | 1072 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
718e3744 | 1073 | |
1074 | for (i = 0; i < nexthop_num; i++) | |
1075 | { | |
1076 | nexthop_type = stream_getc (s); | |
1077 | ||
1078 | switch (nexthop_type) | |
1079 | { | |
5b30316e | 1080 | case NEXTHOP_TYPE_IFINDEX: |
718e3744 | 1081 | ifindex = stream_getl (s); |
a399694f | 1082 | rib_nexthop_ifindex_add (rib, ifindex); |
718e3744 | 1083 | break; |
5b30316e | 1084 | case NEXTHOP_TYPE_IPV4: |
718e3744 | 1085 | nexthop.s_addr = stream_get_ipv4 (s); |
a399694f | 1086 | rib_nexthop_ipv4_add (rib, &nexthop, NULL); |
718e3744 | 1087 | break; |
5b30316e | 1088 | case NEXTHOP_TYPE_IPV4_IFINDEX: |
c963c203 JT |
1089 | nexthop.s_addr = stream_get_ipv4 (s); |
1090 | ifindex = stream_getl (s); | |
a399694f | 1091 | rib_nexthop_ipv4_ifindex_add (rib, &nexthop, NULL, ifindex); |
c963c203 | 1092 | break; |
5b30316e | 1093 | case NEXTHOP_TYPE_IPV6: |
9985f83c | 1094 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1095 | break; |
5b30316e | 1096 | case NEXTHOP_TYPE_BLACKHOLE: |
a399694f | 1097 | rib_nexthop_blackhole_add (rib); |
6902c69a SV |
1098 | break; |
1099 | } | |
718e3744 | 1100 | } |
1101 | } | |
1102 | ||
1103 | /* Distance. */ | |
1104 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1105 | rib->distance = stream_getc (s); | |
1106 | ||
1107 | /* Metric. */ | |
1108 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1109 | rib->metric = stream_getl (s); | |
1110 | ||
0d9551dc DS |
1111 | /* Tag */ |
1112 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1113 | rib->tag = stream_getw (s); | |
1114 | else | |
1115 | rib->tag = 0; | |
1116 | ||
c50ca33a TT |
1117 | if (CHECK_FLAG (message, ZAPI_MESSAGE_MTU)) |
1118 | rib->mtu = stream_getl (s); | |
1119 | else | |
1120 | rib->mtu = 0; | |
1121 | ||
171eee31 | 1122 | /* Table */ |
d651649e | 1123 | rib->table = zvrf->table_id; |
12f6fb97 | 1124 | |
b4c034b0 | 1125 | ret = rib_add_multipath (AFI_IP, safi, &p, rib); |
04b02fda DS |
1126 | |
1127 | /* Stats */ | |
1128 | if (ret > 0) | |
1129 | client->v4_route_add_cnt++; | |
1130 | else if (ret < 0) | |
1131 | client->v4_route_upd8_cnt++; | |
719e9741 | 1132 | return 0; |
718e3744 | 1133 | } |
1134 | ||
1135 | /* Zebra server IPv4 prefix delete function. */ | |
719e9741 | 1136 | static int |
d651649e | 1137 | zread_ipv4_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1138 | { |
1139 | int i; | |
1140 | struct stream *s; | |
1141 | struct zapi_ipv4 api; | |
616368ed DS |
1142 | struct in_addr nexthop; |
1143 | union g_addr *nexthop_p; | |
718e3744 | 1144 | unsigned long ifindex; |
616368ed | 1145 | struct prefix p; |
718e3744 | 1146 | u_char nexthop_num; |
1147 | u_char nexthop_type; | |
12f6fb97 | 1148 | u_int32_t table_id; |
12f6fb97 | 1149 | |
718e3744 | 1150 | s = client->ibuf; |
1151 | ifindex = 0; | |
1152 | nexthop.s_addr = 0; | |
6902c69a | 1153 | nexthop_p = NULL; |
718e3744 | 1154 | |
1155 | /* Type, flags, message. */ | |
1156 | api.type = stream_getc (s); | |
7c8ff89e | 1157 | api.instance = stream_getw (s); |
718e3744 | 1158 | api.flags = stream_getc (s); |
1159 | api.message = stream_getc (s); | |
cddf391b | 1160 | api.safi = stream_getw (s); |
718e3744 | 1161 | |
1162 | /* IPv4 prefix. */ | |
1163 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1164 | p.family = AF_INET; | |
1165 | p.prefixlen = stream_getc (s); | |
616368ed | 1166 | stream_get (&p.u.prefix4, s, PSIZE (p.prefixlen)); |
718e3744 | 1167 | |
1168 | /* Nexthop, ifindex, distance, metric. */ | |
1169 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1170 | { | |
1171 | nexthop_num = stream_getc (s); | |
1172 | ||
1173 | for (i = 0; i < nexthop_num; i++) | |
1174 | { | |
1175 | nexthop_type = stream_getc (s); | |
1176 | ||
1177 | switch (nexthop_type) | |
1178 | { | |
5b30316e | 1179 | case NEXTHOP_TYPE_IFINDEX: |
718e3744 | 1180 | ifindex = stream_getl (s); |
1181 | break; | |
5b30316e | 1182 | case NEXTHOP_TYPE_IPV4: |
718e3744 | 1183 | nexthop.s_addr = stream_get_ipv4 (s); |
616368ed | 1184 | nexthop_p = (union g_addr *)&nexthop; |
718e3744 | 1185 | break; |
5b30316e | 1186 | case NEXTHOP_TYPE_IPV4_IFINDEX: |
c963c203 | 1187 | nexthop.s_addr = stream_get_ipv4 (s); |
616368ed | 1188 | nexthop_p = (union g_addr *)&nexthop; |
c963c203 JT |
1189 | ifindex = stream_getl (s); |
1190 | break; | |
5b30316e | 1191 | case NEXTHOP_TYPE_IPV6: |
9985f83c | 1192 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1193 | break; |
1194 | } | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | /* Distance. */ | |
1199 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1200 | api.distance = stream_getc (s); | |
1201 | else | |
1202 | api.distance = 0; | |
1203 | ||
1204 | /* Metric. */ | |
1205 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1206 | api.metric = stream_getl (s); | |
1207 | else | |
1208 | api.metric = 0; | |
1209 | ||
0d9551dc DS |
1210 | /* tag */ |
1211 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1212 | api.tag = stream_getw (s); | |
1213 | else | |
1214 | api.tag = 0; | |
1215 | ||
d651649e | 1216 | table_id = zvrf->table_id; |
12f6fb97 | 1217 | |
616368ed DS |
1218 | rib_delete (AFI_IP, api.safi, zvrf->vrf_id, api.type, api.instance, |
1219 | api.flags, &p, nexthop_p, ifindex, table_id); | |
04b02fda | 1220 | client->v4_route_del_cnt++; |
719e9741 | 1221 | return 0; |
718e3744 | 1222 | } |
1223 | ||
6f61a5a3 EM |
1224 | /* MRIB Nexthop lookup for IPv4. */ |
1225 | static int | |
1226 | zread_ipv4_nexthop_lookup_mrib (struct zserv *client, u_short length, struct zebra_vrf *zvrf) | |
1227 | { | |
1228 | struct in_addr addr; | |
4623d897 | 1229 | struct rib *rib; |
6f61a5a3 EM |
1230 | |
1231 | addr.s_addr = stream_get_ipv4 (client->ibuf); | |
f86a2b82 | 1232 | rib = rib_match_ipv4_multicast (zvrf->vrf_id, addr, NULL); |
4623d897 | 1233 | return zsend_ipv4_nexthop_lookup_mrib (client, addr, rib, zvrf); |
6f61a5a3 EM |
1234 | } |
1235 | ||
8a92a8a0 DS |
1236 | /* Zebra server IPv6 prefix add function. */ |
1237 | static int | |
d651649e | 1238 | zread_ipv4_route_ipv6_nexthop_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
8a92a8a0 DS |
1239 | { |
1240 | int i; | |
1241 | struct stream *s; | |
1242 | struct in6_addr nexthop; | |
1243 | struct rib *rib; | |
1244 | u_char message; | |
1245 | u_char nexthop_num; | |
1246 | u_char nexthop_type; | |
b4c034b0 | 1247 | struct prefix p; |
8a92a8a0 DS |
1248 | safi_t safi; |
1249 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1250 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1251 | int ret; | |
1252 | ||
1253 | /* Get input stream. */ | |
1254 | s = client->ibuf; | |
1255 | ||
8a92a8a0 DS |
1256 | memset (&nexthop, 0, sizeof (struct in6_addr)); |
1257 | ||
1258 | /* Allocate new rib. */ | |
1259 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1260 | ||
1261 | /* Type, flags, message. */ | |
1262 | rib->type = stream_getc (s); | |
1263 | rib->instance = stream_getw (s); | |
1264 | rib->flags = stream_getc (s); | |
1265 | message = stream_getc (s); | |
1266 | safi = stream_getw (s); | |
1267 | rib->uptime = time (NULL); | |
1268 | ||
1269 | /* IPv4 prefix. */ | |
1270 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1271 | p.family = AF_INET; | |
1272 | p.prefixlen = stream_getc (s); | |
b4c034b0 | 1273 | stream_get (&p.u.prefix4, s, PSIZE (p.prefixlen)); |
8a92a8a0 | 1274 | |
154caaed | 1275 | /* VRF ID */ |
d651649e | 1276 | rib->vrf_id = zvrf->vrf_id; |
154caaed | 1277 | |
8a92a8a0 DS |
1278 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1279 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1280 | * these. Clients should send the same number of paired set of | |
1281 | * next-hop-addr/next-hop-ifindices. */ | |
1282 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1283 | { | |
1284 | int nh_count = 0; | |
1285 | int if_count = 0; | |
1286 | int max_nh_if = 0; | |
1287 | ||
1288 | nexthop_num = stream_getc (s); | |
6878b9db | 1289 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
8a92a8a0 DS |
1290 | for (i = 0; i < nexthop_num; i++) |
1291 | { | |
1292 | nexthop_type = stream_getc (s); | |
1293 | ||
1294 | switch (nexthop_type) | |
1295 | { | |
5b30316e | 1296 | case NEXTHOP_TYPE_IPV6: |
8a92a8a0 DS |
1297 | stream_get (&nexthop, s, 16); |
1298 | if (nh_count < MULTIPATH_NUM) { | |
1299 | nexthops[nh_count++] = nexthop; | |
1300 | } | |
1301 | break; | |
5b30316e | 1302 | case NEXTHOP_TYPE_IFINDEX: |
8a92a8a0 DS |
1303 | if (if_count < MULTIPATH_NUM) { |
1304 | ifindices[if_count++] = stream_getl (s); | |
1305 | } | |
1306 | break; | |
5b30316e | 1307 | case NEXTHOP_TYPE_BLACKHOLE: |
a399694f | 1308 | rib_nexthop_blackhole_add (rib); |
8a92a8a0 DS |
1309 | break; |
1310 | } | |
1311 | } | |
1312 | ||
1313 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1314 | for (i = 0; i < max_nh_if; i++) | |
1315 | { | |
1316 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
1317 | if ((i < if_count) && ifindices[i]) { | |
a399694f | 1318 | rib_nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); |
8a92a8a0 DS |
1319 | } |
1320 | else { | |
a399694f | 1321 | rib_nexthop_ipv6_add (rib, &nexthops[i]); |
8a92a8a0 DS |
1322 | } |
1323 | } | |
1324 | else { | |
1325 | if ((i < if_count) && ifindices[i]) { | |
a399694f | 1326 | rib_nexthop_ifindex_add (rib, ifindices[i]); |
8a92a8a0 DS |
1327 | } |
1328 | } | |
1329 | } | |
1330 | } | |
1331 | ||
1332 | /* Distance. */ | |
1333 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1334 | rib->distance = stream_getc (s); | |
1335 | ||
1336 | /* Metric. */ | |
1337 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1338 | rib->metric = stream_getl (s); | |
1339 | ||
1340 | /* Tag */ | |
1341 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1342 | rib->tag = stream_getw (s); | |
1343 | else | |
1344 | rib->tag = 0; | |
1345 | ||
c50ca33a TT |
1346 | if (CHECK_FLAG (message, ZAPI_MESSAGE_MTU)) |
1347 | rib->mtu = stream_getl (s); | |
1348 | else | |
1349 | rib->mtu = 0; | |
1350 | ||
8a92a8a0 | 1351 | /* Table */ |
d651649e | 1352 | rib->table = zvrf->table_id; |
12f6fb97 | 1353 | |
b4c034b0 | 1354 | ret = rib_add_multipath (AFI_IP6, safi, &p, rib); |
8a92a8a0 DS |
1355 | /* Stats */ |
1356 | if (ret > 0) | |
1357 | client->v4_route_add_cnt++; | |
1358 | else if (ret < 0) | |
1359 | client->v4_route_upd8_cnt++; | |
1360 | ||
1361 | return 0; | |
1362 | } | |
1363 | ||
719e9741 | 1364 | static int |
d651649e | 1365 | zread_ipv6_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1366 | { |
1367 | int i; | |
1368 | struct stream *s; | |
718e3744 | 1369 | struct in6_addr nexthop; |
41fc2714 DS |
1370 | struct rib *rib; |
1371 | u_char message; | |
1372 | u_char nexthop_num; | |
1373 | u_char nexthop_type; | |
b4c034b0 | 1374 | struct prefix p; |
41fc2714 DS |
1375 | safi_t safi; |
1376 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1377 | static unsigned int ifindices[MULTIPATH_NUM]; | |
04b02fda | 1378 | int ret; |
41fc2714 DS |
1379 | |
1380 | /* Get input stream. */ | |
718e3744 | 1381 | s = client->ibuf; |
41fc2714 | 1382 | |
718e3744 | 1383 | memset (&nexthop, 0, sizeof (struct in6_addr)); |
1384 | ||
41fc2714 DS |
1385 | /* Allocate new rib. */ |
1386 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1387 | ||
718e3744 | 1388 | /* Type, flags, message. */ |
41fc2714 | 1389 | rib->type = stream_getc (s); |
7c8ff89e | 1390 | rib->instance = stream_getw (s); |
41fc2714 DS |
1391 | rib->flags = stream_getc (s); |
1392 | message = stream_getc (s); | |
1393 | safi = stream_getw (s); | |
1394 | rib->uptime = time (NULL); | |
718e3744 | 1395 | |
41fc2714 | 1396 | /* IPv6 prefix. */ |
718e3744 | 1397 | memset (&p, 0, sizeof (struct prefix_ipv6)); |
1398 | p.family = AF_INET6; | |
1399 | p.prefixlen = stream_getc (s); | |
b4c034b0 | 1400 | stream_get (&p.u.prefix6, s, PSIZE (p.prefixlen)); |
718e3744 | 1401 | |
41fc2714 DS |
1402 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1403 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1404 | * these. Clients should send the same number of paired set of | |
1405 | * next-hop-addr/next-hop-ifindices. */ | |
1406 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
718e3744 | 1407 | { |
41fc2714 DS |
1408 | int nh_count = 0; |
1409 | int if_count = 0; | |
1410 | int max_nh_if = 0; | |
718e3744 | 1411 | |
41fc2714 | 1412 | nexthop_num = stream_getc (s); |
6878b9db DS |
1413 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
1414 | for (i = 0; i < nexthop_num; i++) | |
718e3744 | 1415 | { |
1416 | nexthop_type = stream_getc (s); | |
1417 | ||
1418 | switch (nexthop_type) | |
1419 | { | |
5b30316e | 1420 | case NEXTHOP_TYPE_IPV6: |
718e3744 | 1421 | stream_get (&nexthop, s, 16); |
41fc2714 DS |
1422 | if (nh_count < MULTIPATH_NUM) { |
1423 | nexthops[nh_count++] = nexthop; | |
1424 | } | |
718e3744 | 1425 | break; |
5b30316e | 1426 | case NEXTHOP_TYPE_IFINDEX: |
41fc2714 DS |
1427 | if (if_count < MULTIPATH_NUM) { |
1428 | ifindices[if_count++] = stream_getl (s); | |
1429 | } | |
718e3744 | 1430 | break; |
5b30316e | 1431 | case NEXTHOP_TYPE_BLACKHOLE: |
a399694f | 1432 | rib_nexthop_blackhole_add (rib); |
c3c0ac83 | 1433 | break; |
718e3744 | 1434 | } |
1435 | } | |
41fc2714 DS |
1436 | |
1437 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1438 | for (i = 0; i < max_nh_if; i++) | |
1439 | { | |
1440 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
6f20b80d | 1441 | if ((i < if_count) && ifindices[i]) |
a399694f | 1442 | rib_nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); |
6f20b80d | 1443 | else |
a399694f | 1444 | rib_nexthop_ipv6_add (rib, &nexthops[i]); |
41fc2714 DS |
1445 | } |
1446 | else { | |
6f20b80d | 1447 | if ((i < if_count) && ifindices[i]) |
a399694f | 1448 | rib_nexthop_ifindex_add (rib, ifindices[i]); |
41fc2714 DS |
1449 | } |
1450 | } | |
718e3744 | 1451 | } |
1452 | ||
41fc2714 DS |
1453 | /* Distance. */ |
1454 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1455 | rib->distance = stream_getc (s); | |
718e3744 | 1456 | |
41fc2714 DS |
1457 | /* Metric. */ |
1458 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1459 | rib->metric = stream_getl (s); | |
718e3744 | 1460 | |
0d9551dc DS |
1461 | /* Tag */ |
1462 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1463 | rib->tag = stream_getw (s); | |
1464 | else | |
1465 | rib->tag = 0; | |
c50ca33a TT |
1466 | |
1467 | if (CHECK_FLAG (message, ZAPI_MESSAGE_MTU)) | |
1468 | rib->mtu = stream_getl (s); | |
1469 | else | |
1470 | rib->mtu = 0; | |
0d9551dc | 1471 | |
154caaed | 1472 | /* VRF ID */ |
d651649e DS |
1473 | rib->vrf_id = zvrf->vrf_id; |
1474 | rib->table = zvrf->table_id; | |
154caaed | 1475 | |
bb374626 | 1476 | ret = rib_add_multipath (AFI_IP6, safi, &p, rib); |
04b02fda DS |
1477 | /* Stats */ |
1478 | if (ret > 0) | |
1479 | client->v6_route_add_cnt++; | |
1480 | else if (ret < 0) | |
1481 | client->v6_route_upd8_cnt++; | |
1482 | ||
719e9741 | 1483 | return 0; |
718e3744 | 1484 | } |
1485 | ||
1486 | /* Zebra server IPv6 prefix delete function. */ | |
719e9741 | 1487 | static int |
d651649e | 1488 | zread_ipv6_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1489 | { |
1490 | int i; | |
1491 | struct stream *s; | |
1492 | struct zapi_ipv6 api; | |
1493 | struct in6_addr nexthop; | |
616368ed | 1494 | union g_addr *pnexthop; |
718e3744 | 1495 | unsigned long ifindex; |
616368ed | 1496 | struct prefix p; |
718e3744 | 1497 | |
1498 | s = client->ibuf; | |
1499 | ifindex = 0; | |
1500 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1501 | ||
1502 | /* Type, flags, message. */ | |
1503 | api.type = stream_getc (s); | |
7c8ff89e | 1504 | api.instance = stream_getw (s); |
718e3744 | 1505 | api.flags = stream_getc (s); |
1506 | api.message = stream_getc (s); | |
f768f367 | 1507 | api.safi = stream_getw (s); |
718e3744 | 1508 | |
1509 | /* IPv4 prefix. */ | |
1510 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1511 | p.family = AF_INET6; | |
1512 | p.prefixlen = stream_getc (s); | |
616368ed | 1513 | stream_get (&p.u.prefix6, s, PSIZE (p.prefixlen)); |
718e3744 | 1514 | |
1515 | /* Nexthop, ifindex, distance, metric. */ | |
1516 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1517 | { | |
1518 | u_char nexthop_type; | |
1519 | ||
1520 | api.nexthop_num = stream_getc (s); | |
1521 | for (i = 0; i < api.nexthop_num; i++) | |
1522 | { | |
1523 | nexthop_type = stream_getc (s); | |
1524 | ||
1525 | switch (nexthop_type) | |
1526 | { | |
5b30316e | 1527 | case NEXTHOP_TYPE_IPV6: |
718e3744 | 1528 | stream_get (&nexthop, s, 16); |
616368ed | 1529 | pnexthop = (union g_addr *)&nexthop; |
718e3744 | 1530 | break; |
5b30316e | 1531 | case NEXTHOP_TYPE_IFINDEX: |
718e3744 | 1532 | ifindex = stream_getl (s); |
1533 | break; | |
1534 | } | |
1535 | } | |
1536 | } | |
1537 | ||
0d9551dc | 1538 | /* Distance. */ |
718e3744 | 1539 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) |
1540 | api.distance = stream_getc (s); | |
1541 | else | |
1542 | api.distance = 0; | |
0d9551dc DS |
1543 | |
1544 | /* Metric. */ | |
718e3744 | 1545 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) |
1546 | api.metric = stream_getl (s); | |
1547 | else | |
1548 | api.metric = 0; | |
1549 | ||
0d9551dc DS |
1550 | /* tag */ |
1551 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1552 | api.tag = stream_getw (s); | |
1553 | else | |
1554 | api.tag = 0; | |
1555 | ||
718e3744 | 1556 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) |
616368ed DS |
1557 | rib_delete (AFI_IP6, api.safi, zvrf->vrf_id, api.type, api.instance, |
1558 | api.flags, &p, NULL, ifindex, client->rtm_table); | |
718e3744 | 1559 | else |
616368ed DS |
1560 | rib_delete (AFI_IP6, api.safi, zvrf->vrf_id, api.type, api.instance, |
1561 | api.flags, &p, pnexthop, ifindex, client->rtm_table); | |
04b02fda DS |
1562 | |
1563 | client->v6_route_del_cnt++; | |
719e9741 | 1564 | return 0; |
718e3744 | 1565 | } |
1566 | ||
18a6dce6 | 1567 | /* Register zebra server router-id information. Send current router-id */ |
719e9741 | 1568 | static int |
d651649e | 1569 | zread_router_id_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
18a6dce6 | 1570 | { |
1571 | struct prefix p; | |
1572 | ||
1573 | /* Router-id information is needed. */ | |
d651649e | 1574 | vrf_bitmap_set (client->ridinfo, zvrf->vrf_id); |
18a6dce6 | 1575 | |
d651649e | 1576 | router_id_get (&p, zvrf->vrf_id); |
18a6dce6 | 1577 | |
d651649e | 1578 | return zsend_router_id_update (client, &p, zvrf->vrf_id); |
18a6dce6 | 1579 | } |
1580 | ||
1581 | /* Unregister zebra server router-id information. */ | |
719e9741 | 1582 | static int |
d651649e | 1583 | zread_router_id_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
18a6dce6 | 1584 | { |
d651649e | 1585 | vrf_bitmap_unset (client->ridinfo, zvrf->vrf_id); |
719e9741 | 1586 | return 0; |
18a6dce6 | 1587 | } |
1588 | ||
2ea1ab1c VT |
1589 | /* Tie up route-type and client->sock */ |
1590 | static void | |
1591 | zread_hello (struct zserv *client) | |
1592 | { | |
1593 | /* type of protocol (lib/zebra.h) */ | |
1594 | u_char proto; | |
7c8ff89e DS |
1595 | u_short instance; |
1596 | ||
2ea1ab1c | 1597 | proto = stream_getc (client->ibuf); |
7c8ff89e | 1598 | instance = stream_getw (client->ibuf); |
2ea1ab1c VT |
1599 | |
1600 | /* accept only dynamic routing protocols */ | |
1601 | if ((proto < ZEBRA_ROUTE_MAX) | |
1602 | && (proto > ZEBRA_ROUTE_STATIC)) | |
1603 | { | |
1604 | zlog_notice ("client %d says hello and bids fair to announce only %s routes", | |
1605 | client->sock, zebra_route_string(proto)); | |
7c8ff89e DS |
1606 | if (instance) |
1607 | zlog_notice ("client protocol instance %d", instance); | |
2ea1ab1c | 1608 | |
fb018d25 | 1609 | client->proto = proto; |
7c8ff89e | 1610 | client->instance = instance; |
2ea1ab1c VT |
1611 | } |
1612 | } | |
1613 | ||
7076bb2f FL |
1614 | /* Unregister all information in a VRF. */ |
1615 | static int | |
d651649e | 1616 | zread_vrf_unregister (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
7076bb2f FL |
1617 | { |
1618 | int i; | |
1619 | afi_t afi; | |
1620 | ||
1621 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1622 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
d651649e DS |
1623 | vrf_bitmap_unset (client->redist[afi][i], zvrf->vrf_id); |
1624 | vrf_bitmap_unset (client->redist_default, zvrf->vrf_id); | |
1625 | vrf_bitmap_unset (client->ifinfo, zvrf->vrf_id); | |
1626 | vrf_bitmap_unset (client->ridinfo, zvrf->vrf_id); | |
7076bb2f FL |
1627 | |
1628 | return 0; | |
1629 | } | |
1630 | ||
4b33b75a | 1631 | /* Cleanup registered nexthops (across VRFs) upon client disconnect. */ |
1632 | static void | |
1633 | zebra_client_close_cleanup_rnh (struct zserv *client) | |
1634 | { | |
1635 | vrf_iter_t iter; | |
1636 | struct zebra_vrf *zvrf; | |
1637 | ||
1638 | for (iter = vrf_first (); iter != VRF_ITER_INVALID; iter = vrf_next (iter)) | |
1639 | { | |
1640 | if ((zvrf = vrf_iter2info (iter)) != NULL) | |
1641 | { | |
1642 | zebra_cleanup_rnh_client(zvrf->vrf_id, AF_INET, client, RNH_NEXTHOP_TYPE); | |
1643 | zebra_cleanup_rnh_client(zvrf->vrf_id, AF_INET6, client, RNH_NEXTHOP_TYPE); | |
1644 | zebra_cleanup_rnh_client(zvrf->vrf_id, AF_INET, client, RNH_IMPORT_CHECK_TYPE); | |
1645 | zebra_cleanup_rnh_client(zvrf->vrf_id, AF_INET6, client, RNH_IMPORT_CHECK_TYPE); | |
1646 | } | |
1647 | } | |
1648 | } | |
1649 | ||
718e3744 | 1650 | /* Close zebra client. */ |
b9df2d25 | 1651 | static void |
718e3744 | 1652 | zebra_client_close (struct zserv *client) |
1653 | { | |
567b877d | 1654 | /* Send client de-registration to BFD */ |
2376c3f2 | 1655 | zebra_ptm_bfd_client_deregister(client->proto); |
567b877d | 1656 | |
4b33b75a | 1657 | /* Cleanup any registered nexthops - across all VRFs. */ |
1658 | zebra_client_close_cleanup_rnh (client); | |
fb018d25 | 1659 | |
718e3744 | 1660 | /* Close file descriptor. */ |
1661 | if (client->sock) | |
1662 | { | |
7c8ff89e DS |
1663 | unsigned long nroutes; |
1664 | ||
718e3744 | 1665 | close (client->sock); |
7c8ff89e DS |
1666 | nroutes = rib_score_proto (client->proto, client->instance); |
1667 | zlog_notice ("client %d disconnected. %lu %s routes removed from the rib", | |
1668 | client->sock, nroutes, zebra_route_string (client->proto)); | |
718e3744 | 1669 | client->sock = -1; |
1670 | } | |
1671 | ||
1672 | /* Free stream buffers. */ | |
1673 | if (client->ibuf) | |
1674 | stream_free (client->ibuf); | |
1675 | if (client->obuf) | |
1676 | stream_free (client->obuf); | |
719e9741 | 1677 | if (client->wb) |
1678 | buffer_free(client->wb); | |
718e3744 | 1679 | |
1680 | /* Release threads. */ | |
1681 | if (client->t_read) | |
1682 | thread_cancel (client->t_read); | |
1683 | if (client->t_write) | |
1684 | thread_cancel (client->t_write); | |
719e9741 | 1685 | if (client->t_suicide) |
1686 | thread_cancel (client->t_suicide); | |
718e3744 | 1687 | |
1688 | /* Free client structure. */ | |
b21b19c5 | 1689 | listnode_delete (zebrad.client_list, client); |
c66f9c61 | 1690 | XFREE (MTYPE_TMP, client); |
718e3744 | 1691 | } |
1692 | ||
1693 | /* Make new client. */ | |
b9df2d25 | 1694 | static void |
718e3744 | 1695 | zebra_client_create (int sock) |
1696 | { | |
1697 | struct zserv *client; | |
7076bb2f FL |
1698 | int i; |
1699 | afi_t afi; | |
718e3744 | 1700 | |
c66f9c61 | 1701 | client = XCALLOC (MTYPE_TMP, sizeof (struct zserv)); |
718e3744 | 1702 | |
1703 | /* Make client input/output buffer. */ | |
1704 | client->sock = sock; | |
1705 | client->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
1706 | client->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
719e9741 | 1707 | client->wb = buffer_new(0); |
718e3744 | 1708 | |
1709 | /* Set table number. */ | |
b21b19c5 | 1710 | client->rtm_table = zebrad.rtm_table_default; |
718e3744 | 1711 | |
2176b7c3 | 1712 | client->connect_time = quagga_monotime(); |
7076bb2f FL |
1713 | /* Initialize flags */ |
1714 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1715 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
1716 | client->redist[afi][i] = vrf_bitmap_init (); | |
1717 | client->redist_default = vrf_bitmap_init (); | |
1718 | client->ifinfo = vrf_bitmap_init (); | |
1719 | client->ridinfo = vrf_bitmap_init (); | |
04b02fda | 1720 | |
718e3744 | 1721 | /* Add this client to linked list. */ |
b21b19c5 | 1722 | listnode_add (zebrad.client_list, client); |
718e3744 | 1723 | |
1724 | /* Make new read thread. */ | |
1725 | zebra_event (ZEBRA_READ, sock, client); | |
12f6fb97 DS |
1726 | |
1727 | zebra_vrf_update_all (client); | |
718e3744 | 1728 | } |
1729 | ||
1730 | /* Handler of zebra service request. */ | |
b9df2d25 | 1731 | static int |
718e3744 | 1732 | zebra_client_read (struct thread *thread) |
1733 | { | |
1734 | int sock; | |
1735 | struct zserv *client; | |
57a1477b | 1736 | size_t already; |
c1b9800a | 1737 | uint16_t length, command; |
1738 | uint8_t marker, version; | |
7076bb2f | 1739 | vrf_id_t vrf_id; |
d651649e | 1740 | struct zebra_vrf *zvrf; |
718e3744 | 1741 | |
1742 | /* Get thread data. Reset reading thread because I'm running. */ | |
1743 | sock = THREAD_FD (thread); | |
1744 | client = THREAD_ARG (thread); | |
1745 | client->t_read = NULL; | |
1746 | ||
719e9741 | 1747 | if (client->t_suicide) |
718e3744 | 1748 | { |
719e9741 | 1749 | zebra_client_close(client); |
718e3744 | 1750 | return -1; |
1751 | } | |
719e9741 | 1752 | |
1753 | /* Read length and command (if we don't have it already). */ | |
57a1477b | 1754 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) |
719e9741 | 1755 | { |
57a1477b | 1756 | ssize_t nbyte; |
719e9741 | 1757 | if (((nbyte = stream_read_try (client->ibuf, sock, |
57a1477b | 1758 | ZEBRA_HEADER_SIZE-already)) == 0) || |
719e9741 | 1759 | (nbyte == -1)) |
1760 | { | |
1761 | if (IS_ZEBRA_DEBUG_EVENT) | |
1762 | zlog_debug ("connection closed socket [%d]", sock); | |
1763 | zebra_client_close (client); | |
1764 | return -1; | |
1765 | } | |
57a1477b | 1766 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE-already)) |
719e9741 | 1767 | { |
1768 | /* Try again later. */ | |
1769 | zebra_event (ZEBRA_READ, sock, client); | |
1770 | return 0; | |
1771 | } | |
57a1477b | 1772 | already = ZEBRA_HEADER_SIZE; |
719e9741 | 1773 | } |
1774 | ||
1775 | /* Reset to read from the beginning of the incoming packet. */ | |
1776 | stream_set_getp(client->ibuf, 0); | |
1777 | ||
c1b9800a | 1778 | /* Fetch header values */ |
718e3744 | 1779 | length = stream_getw (client->ibuf); |
c1b9800a | 1780 | marker = stream_getc (client->ibuf); |
1781 | version = stream_getc (client->ibuf); | |
7076bb2f | 1782 | vrf_id = stream_getw (client->ibuf); |
c1b9800a | 1783 | command = stream_getw (client->ibuf); |
718e3744 | 1784 | |
c1b9800a | 1785 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) |
1786 | { | |
1787 | zlog_err("%s: socket %d version mismatch, marker %d, version %d", | |
1788 | __func__, sock, marker, version); | |
1789 | zebra_client_close (client); | |
1790 | return -1; | |
1791 | } | |
719e9741 | 1792 | if (length < ZEBRA_HEADER_SIZE) |
718e3744 | 1793 | { |
57a1477b | 1794 | zlog_warn("%s: socket %d message length %u is less than header size %d", |
1795 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
1796 | zebra_client_close (client); | |
1797 | return -1; | |
1798 | } | |
1799 | if (length > STREAM_SIZE(client->ibuf)) | |
1800 | { | |
1801 | zlog_warn("%s: socket %d message length %u exceeds buffer size %lu", | |
1802 | __func__, sock, length, (u_long)STREAM_SIZE(client->ibuf)); | |
718e3744 | 1803 | zebra_client_close (client); |
1804 | return -1; | |
1805 | } | |
1806 | ||
718e3744 | 1807 | /* Read rest of data. */ |
57a1477b | 1808 | if (already < length) |
718e3744 | 1809 | { |
57a1477b | 1810 | ssize_t nbyte; |
1811 | if (((nbyte = stream_read_try (client->ibuf, sock, | |
1812 | length-already)) == 0) || | |
1813 | (nbyte == -1)) | |
718e3744 | 1814 | { |
1815 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1816 | zlog_debug ("connection closed [%d] when reading zebra data", sock); |
718e3744 | 1817 | zebra_client_close (client); |
1818 | return -1; | |
1819 | } | |
57a1477b | 1820 | if (nbyte != (ssize_t)(length-already)) |
719e9741 | 1821 | { |
1822 | /* Try again later. */ | |
1823 | zebra_event (ZEBRA_READ, sock, client); | |
1824 | return 0; | |
1825 | } | |
718e3744 | 1826 | } |
1827 | ||
719e9741 | 1828 | length -= ZEBRA_HEADER_SIZE; |
1829 | ||
718e3744 | 1830 | /* Debug packet information. */ |
1831 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1832 | zlog_debug ("zebra message comes from socket [%d]", sock); |
718e3744 | 1833 | |
1834 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
7076bb2f FL |
1835 | zlog_debug ("zebra message received [%s] %d in VRF %u", |
1836 | zserv_command_string (command), length, vrf_id); | |
718e3744 | 1837 | |
2176b7c3 | 1838 | client->last_read_time = quagga_monotime(); |
04b02fda DS |
1839 | client->last_read_cmd = command; |
1840 | ||
d651649e DS |
1841 | zvrf = zebra_vrf_lookup (vrf_id); |
1842 | if (!zvrf) | |
1843 | { | |
1844 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
1845 | zlog_debug ("zebra received unknown VRF[%u]", vrf_id); | |
1846 | goto zclient_read_out; | |
1847 | } | |
1848 | ||
718e3744 | 1849 | switch (command) |
1850 | { | |
18a6dce6 | 1851 | case ZEBRA_ROUTER_ID_ADD: |
d651649e | 1852 | zread_router_id_add (client, length, zvrf); |
18a6dce6 | 1853 | break; |
1854 | case ZEBRA_ROUTER_ID_DELETE: | |
d651649e | 1855 | zread_router_id_delete (client, length, zvrf); |
18a6dce6 | 1856 | break; |
718e3744 | 1857 | case ZEBRA_INTERFACE_ADD: |
d651649e | 1858 | zread_interface_add (client, length, zvrf); |
718e3744 | 1859 | break; |
1860 | case ZEBRA_INTERFACE_DELETE: | |
d651649e | 1861 | zread_interface_delete (client, length, zvrf); |
718e3744 | 1862 | break; |
1863 | case ZEBRA_IPV4_ROUTE_ADD: | |
d651649e | 1864 | zread_ipv4_add (client, length, zvrf); |
718e3744 | 1865 | break; |
1866 | case ZEBRA_IPV4_ROUTE_DELETE: | |
d651649e | 1867 | zread_ipv4_delete (client, length, zvrf); |
718e3744 | 1868 | break; |
8a92a8a0 | 1869 | case ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD: |
d651649e | 1870 | zread_ipv4_route_ipv6_nexthop_add (client, length, zvrf); |
8a92a8a0 | 1871 | break; |
718e3744 | 1872 | case ZEBRA_IPV6_ROUTE_ADD: |
d651649e | 1873 | zread_ipv6_add (client, length, zvrf); |
718e3744 | 1874 | break; |
1875 | case ZEBRA_IPV6_ROUTE_DELETE: | |
d651649e | 1876 | zread_ipv6_delete (client, length, zvrf); |
718e3744 | 1877 | break; |
718e3744 | 1878 | case ZEBRA_REDISTRIBUTE_ADD: |
d651649e | 1879 | zebra_redistribute_add (command, client, length, zvrf); |
718e3744 | 1880 | break; |
1881 | case ZEBRA_REDISTRIBUTE_DELETE: | |
d651649e | 1882 | zebra_redistribute_delete (command, client, length, zvrf); |
718e3744 | 1883 | break; |
1884 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
d651649e | 1885 | zebra_redistribute_default_add (command, client, length, zvrf); |
718e3744 | 1886 | break; |
1887 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
d651649e | 1888 | zebra_redistribute_default_delete (command, client, length, zvrf); |
718e3744 | 1889 | break; |
6f61a5a3 EM |
1890 | case ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB: |
1891 | zread_ipv4_nexthop_lookup_mrib (client, length, zvrf); | |
718e3744 | 1892 | break; |
2ea1ab1c VT |
1893 | case ZEBRA_HELLO: |
1894 | zread_hello (client); | |
1895 | break; | |
fb018d25 | 1896 | case ZEBRA_NEXTHOP_REGISTER: |
d651649e | 1897 | zserv_rnh_register(client, sock, length, RNH_NEXTHOP_TYPE, zvrf); |
fb018d25 DS |
1898 | break; |
1899 | case ZEBRA_NEXTHOP_UNREGISTER: | |
d651649e | 1900 | zserv_rnh_unregister(client, sock, length, RNH_NEXTHOP_TYPE, zvrf); |
078430f6 DS |
1901 | break; |
1902 | case ZEBRA_IMPORT_ROUTE_REGISTER: | |
d651649e | 1903 | zserv_rnh_register(client, sock, length, RNH_IMPORT_CHECK_TYPE, zvrf); |
078430f6 DS |
1904 | break; |
1905 | case ZEBRA_IMPORT_ROUTE_UNREGISTER: | |
d651649e | 1906 | zserv_rnh_unregister(client, sock, length, RNH_IMPORT_CHECK_TYPE, zvrf); |
fb018d25 | 1907 | break; |
c43ed2e4 DS |
1908 | case ZEBRA_BFD_DEST_UPDATE: |
1909 | case ZEBRA_BFD_DEST_REGISTER: | |
d651649e | 1910 | zebra_ptm_bfd_dst_register(client, sock, length, command, zvrf); |
c43ed2e4 DS |
1911 | break; |
1912 | case ZEBRA_BFD_DEST_DEREGISTER: | |
d651649e | 1913 | zebra_ptm_bfd_dst_deregister(client, sock, length, zvrf); |
c43ed2e4 | 1914 | break; |
7076bb2f | 1915 | case ZEBRA_VRF_UNREGISTER: |
d651649e | 1916 | zread_vrf_unregister (client, length, zvrf); |
7076bb2f | 1917 | break; |
055c4dfc | 1918 | case ZEBRA_BFD_CLIENT_REGISTER: |
1919 | zebra_ptm_bfd_client_register(client, sock, length); | |
1920 | break; | |
4a04e5f7 | 1921 | case ZEBRA_INTERFACE_ENABLE_RADV: |
1922 | zebra_interface_radv_set (client, sock, length, zvrf, 1); | |
1923 | break; | |
1924 | case ZEBRA_INTERFACE_DISABLE_RADV: | |
1925 | zebra_interface_radv_set (client, sock, length, zvrf, 0); | |
1926 | break; | |
718e3744 | 1927 | default: |
1928 | zlog_info ("Zebra received unknown command %d", command); | |
1929 | break; | |
1930 | } | |
1931 | ||
719e9741 | 1932 | if (client->t_suicide) |
1933 | { | |
1934 | /* No need to wait for thread callback, just kill immediately. */ | |
1935 | zebra_client_close(client); | |
1936 | return -1; | |
1937 | } | |
1938 | ||
d651649e | 1939 | zclient_read_out: |
718e3744 | 1940 | stream_reset (client->ibuf); |
1941 | zebra_event (ZEBRA_READ, sock, client); | |
718e3744 | 1942 | return 0; |
1943 | } | |
1944 | ||
718e3744 | 1945 | |
1946 | /* Accept code of zebra server socket. */ | |
b9df2d25 | 1947 | static int |
718e3744 | 1948 | zebra_accept (struct thread *thread) |
1949 | { | |
1950 | int accept_sock; | |
1951 | int client_sock; | |
1952 | struct sockaddr_in client; | |
1953 | socklen_t len; | |
1954 | ||
1955 | accept_sock = THREAD_FD (thread); | |
1956 | ||
719e9741 | 1957 | /* Reregister myself. */ |
1958 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1959 | ||
718e3744 | 1960 | len = sizeof (struct sockaddr_in); |
1961 | client_sock = accept (accept_sock, (struct sockaddr *) &client, &len); | |
1962 | ||
1963 | if (client_sock < 0) | |
1964 | { | |
6099b3b5 | 1965 | zlog_warn ("Can't accept zebra socket: %s", safe_strerror (errno)); |
718e3744 | 1966 | return -1; |
1967 | } | |
1968 | ||
ccf3557b | 1969 | /* Make client socket non-blocking. */ |
719e9741 | 1970 | set_nonblocking(client_sock); |
865b852c | 1971 | |
718e3744 | 1972 | /* Create new zebra client. */ |
1973 | zebra_client_create (client_sock); | |
1974 | ||
718e3744 | 1975 | return 0; |
1976 | } | |
1977 | ||
b9df2d25 | 1978 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 1979 | /* Make zebra's server socket. */ |
b9df2d25 | 1980 | static void |
718e3744 | 1981 | zebra_serv () |
1982 | { | |
1983 | int ret; | |
1984 | int accept_sock; | |
1985 | struct sockaddr_in addr; | |
1986 | ||
1987 | accept_sock = socket (AF_INET, SOCK_STREAM, 0); | |
1988 | ||
1989 | if (accept_sock < 0) | |
1990 | { | |
3d1dc857 | 1991 | zlog_warn ("Can't create zserv stream socket: %s", |
1992 | safe_strerror (errno)); | |
718e3744 | 1993 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1994 | return; | |
1995 | } | |
1996 | ||
1997 | memset (&addr, 0, sizeof (struct sockaddr_in)); | |
1998 | addr.sin_family = AF_INET; | |
1999 | addr.sin_port = htons (ZEBRA_PORT); | |
6f0e3f6e | 2000 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 2001 | addr.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 2002 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 2003 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
2004 | ||
2005 | sockopt_reuseaddr (accept_sock); | |
2006 | sockopt_reuseport (accept_sock); | |
2007 | ||
edd7c245 | 2008 | if ( zserv_privs.change(ZPRIVS_RAISE) ) |
2009 | zlog (NULL, LOG_ERR, "Can't raise privileges"); | |
2010 | ||
718e3744 | 2011 | ret = bind (accept_sock, (struct sockaddr *)&addr, |
2012 | sizeof (struct sockaddr_in)); | |
2013 | if (ret < 0) | |
2014 | { | |
3d1dc857 | 2015 | zlog_warn ("Can't bind to stream socket: %s", |
2016 | safe_strerror (errno)); | |
718e3744 | 2017 | zlog_warn ("zebra can't provice full functionality due to above error"); |
2018 | close (accept_sock); /* Avoid sd leak. */ | |
2019 | return; | |
2020 | } | |
edd7c245 | 2021 | |
2022 | if ( zserv_privs.change(ZPRIVS_LOWER) ) | |
2023 | zlog (NULL, LOG_ERR, "Can't lower privileges"); | |
718e3744 | 2024 | |
2025 | ret = listen (accept_sock, 1); | |
2026 | if (ret < 0) | |
2027 | { | |
3d1dc857 | 2028 | zlog_warn ("Can't listen to stream socket: %s", |
2029 | safe_strerror (errno)); | |
718e3744 | 2030 | zlog_warn ("zebra can't provice full functionality due to above error"); |
2031 | close (accept_sock); /* Avoid sd leak. */ | |
2032 | return; | |
2033 | } | |
2034 | ||
2035 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
2036 | } | |
fbedba64 | 2037 | #else /* HAVE_TCP_ZEBRA */ |
718e3744 | 2038 | |
2039 | /* For sockaddr_un. */ | |
2040 | #include <sys/un.h> | |
2041 | ||
2042 | /* zebra server UNIX domain socket. */ | |
b9df2d25 | 2043 | static void |
fce954f8 | 2044 | zebra_serv_un (const char *path) |
718e3744 | 2045 | { |
2046 | int ret; | |
2047 | int sock, len; | |
2048 | struct sockaddr_un serv; | |
2049 | mode_t old_mask; | |
2050 | ||
2051 | /* First of all, unlink existing socket */ | |
2052 | unlink (path); | |
2053 | ||
2054 | /* Set umask */ | |
2055 | old_mask = umask (0077); | |
2056 | ||
2057 | /* Make UNIX domain socket. */ | |
2058 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
2059 | if (sock < 0) | |
2060 | { | |
3d1dc857 | 2061 | zlog_warn ("Can't create zserv unix socket: %s", |
2062 | safe_strerror (errno)); | |
2063 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2064 | return; |
2065 | } | |
2066 | ||
2067 | /* Make server socket. */ | |
2068 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
2069 | serv.sun_family = AF_UNIX; | |
2070 | strncpy (serv.sun_path, path, strlen (path)); | |
6f0e3f6e | 2071 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 2072 | len = serv.sun_len = SUN_LEN(&serv); |
2073 | #else | |
2074 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 2075 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2076 | |
2077 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
2078 | if (ret < 0) | |
2079 | { | |
3d1dc857 | 2080 | zlog_warn ("Can't bind to unix socket %s: %s", |
2081 | path, safe_strerror (errno)); | |
2082 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2083 | close (sock); |
2084 | return; | |
2085 | } | |
2086 | ||
2087 | ret = listen (sock, 5); | |
2088 | if (ret < 0) | |
2089 | { | |
3d1dc857 | 2090 | zlog_warn ("Can't listen to unix socket %s: %s", |
2091 | path, safe_strerror (errno)); | |
2092 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2093 | close (sock); |
2094 | return; | |
2095 | } | |
2096 | ||
2097 | umask (old_mask); | |
2098 | ||
2099 | zebra_event (ZEBRA_SERV, sock, NULL); | |
2100 | } | |
fbedba64 | 2101 | #endif /* HAVE_TCP_ZEBRA */ |
6b0655a2 | 2102 | |
718e3744 | 2103 | |
b9df2d25 | 2104 | static void |
718e3744 | 2105 | zebra_event (enum event event, int sock, struct zserv *client) |
2106 | { | |
2107 | switch (event) | |
2108 | { | |
2109 | case ZEBRA_SERV: | |
b21b19c5 | 2110 | thread_add_read (zebrad.master, zebra_accept, client, sock); |
718e3744 | 2111 | break; |
2112 | case ZEBRA_READ: | |
2113 | client->t_read = | |
b21b19c5 | 2114 | thread_add_read (zebrad.master, zebra_client_read, client, sock); |
718e3744 | 2115 | break; |
2116 | case ZEBRA_WRITE: | |
2117 | /**/ | |
2118 | break; | |
2119 | } | |
2120 | } | |
6b0655a2 | 2121 | |
04b02fda DS |
2122 | #define ZEBRA_TIME_BUF 32 |
2123 | static char * | |
2124 | zserv_time_buf(time_t *time1, char *buf, int buflen) | |
2125 | { | |
2126 | struct tm *tm; | |
2127 | time_t now; | |
2128 | ||
2129 | assert (buf != NULL); | |
2130 | assert (buflen >= ZEBRA_TIME_BUF); | |
2131 | assert (time1 != NULL); | |
2132 | ||
2133 | if (!*time1) | |
2134 | { | |
2135 | snprintf(buf, buflen, "never "); | |
2136 | return (buf); | |
2137 | } | |
2138 | ||
2176b7c3 | 2139 | now = quagga_monotime(); |
04b02fda DS |
2140 | now -= *time1; |
2141 | tm = gmtime(&now); | |
2142 | ||
2143 | /* Making formatted timer strings. */ | |
2144 | #define ONE_DAY_SECOND 60*60*24 | |
2145 | #define ONE_WEEK_SECOND 60*60*24*7 | |
2146 | ||
2147 | if (now < ONE_DAY_SECOND) | |
2148 | snprintf (buf, buflen, "%02d:%02d:%02d", | |
2149 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
2150 | else if (now < ONE_WEEK_SECOND) | |
2151 | snprintf (buf, buflen, "%dd%02dh%02dm", | |
2152 | tm->tm_yday, tm->tm_hour, tm->tm_min); | |
2153 | else | |
2154 | snprintf (buf, buflen, "%02dw%dd%02dh", | |
2155 | tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); | |
2156 | return buf; | |
2157 | } | |
2158 | ||
2159 | static void | |
2160 | zebra_show_client_detail (struct vty *vty, struct zserv *client) | |
2161 | { | |
2162 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2163 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
2164 | ||
7c8ff89e DS |
2165 | vty_out (vty, "Client: %s", zebra_route_string(client->proto)); |
2166 | if (client->instance) | |
2167 | vty_out (vty, " Instance: %d", client->instance); | |
2168 | vty_out (vty, "%s", VTY_NEWLINE); | |
2169 | ||
04b02fda DS |
2170 | vty_out (vty, "------------------------ %s", VTY_NEWLINE); |
2171 | vty_out (vty, "FD: %d %s", client->sock, VTY_NEWLINE); | |
2172 | vty_out (vty, "Route Table ID: %d %s", client->rtm_table, VTY_NEWLINE); | |
2173 | ||
2174 | vty_out (vty, "Connect Time: %s %s", | |
2175 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2176 | VTY_NEWLINE); | |
2177 | if (client->nh_reg_time) | |
2178 | { | |
2179 | vty_out (vty, "Nexthop Registry Time: %s %s", | |
2180 | zserv_time_buf(&client->nh_reg_time, nhbuf, ZEBRA_TIME_BUF), | |
2181 | VTY_NEWLINE); | |
2182 | if (client->nh_last_upd_time) | |
2183 | vty_out (vty, "Nexthop Last Update Time: %s %s", | |
2184 | zserv_time_buf(&client->nh_last_upd_time, mbuf, ZEBRA_TIME_BUF), | |
2185 | VTY_NEWLINE); | |
2186 | else | |
2187 | vty_out (vty, "No Nexthop Update sent%s", VTY_NEWLINE); | |
2188 | } | |
2189 | else | |
2190 | vty_out (vty, "Not registered for Nexthop Updates%s", VTY_NEWLINE); | |
2191 | ||
2192 | vty_out (vty, "Last Msg Rx Time: %s %s", | |
2193 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2194 | VTY_NEWLINE); | |
2195 | vty_out (vty, "Last Msg Tx Time: %s %s", | |
2196 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2197 | VTY_NEWLINE); | |
2198 | if (client->last_read_time) | |
2199 | vty_out (vty, "Last Rcvd Cmd: %s %s", | |
2200 | zserv_command_string(client->last_read_cmd), VTY_NEWLINE); | |
2201 | if (client->last_write_time) | |
2202 | vty_out (vty, "Last Sent Cmd: %s %s", | |
2203 | zserv_command_string(client->last_write_cmd), VTY_NEWLINE); | |
2204 | vty_out (vty, "%s", VTY_NEWLINE); | |
2205 | ||
2206 | vty_out (vty, "Type Add Update Del %s", VTY_NEWLINE); | |
2207 | vty_out (vty, "================================================== %s", VTY_NEWLINE); | |
2208 | vty_out (vty, "IPv4 %-12d%-12d%-12d%s", client->v4_route_add_cnt, | |
2209 | client->v4_route_upd8_cnt, client->v4_route_del_cnt, VTY_NEWLINE); | |
2210 | vty_out (vty, "IPv6 %-12d%-12d%-12d%s", client->v6_route_add_cnt, | |
2211 | client->v6_route_upd8_cnt, client->v6_route_del_cnt, VTY_NEWLINE); | |
2212 | vty_out (vty, "Redist:v4 %-12d%-12d%-12d%s", client->redist_v4_add_cnt, 0, | |
2213 | client->redist_v4_del_cnt, VTY_NEWLINE); | |
2214 | vty_out (vty, "Redist:v6 %-12d%-12d%-12d%s", client->redist_v6_add_cnt, 0, | |
2215 | client->redist_v6_del_cnt, VTY_NEWLINE); | |
2216 | vty_out (vty, "Connected %-12d%-12d%-12d%s", client->ifadd_cnt, 0, | |
2217 | client->ifdel_cnt, VTY_NEWLINE); | |
c43ed2e4 DS |
2218 | vty_out (vty, "BFD peer %-12d%-12d%-12d%s", client->bfd_peer_add_cnt, |
2219 | client->bfd_peer_upd8_cnt, client->bfd_peer_del_cnt, VTY_NEWLINE); | |
04b02fda DS |
2220 | vty_out (vty, "Interface Up Notifications: %d%s", client->ifup_cnt, |
2221 | VTY_NEWLINE); | |
2222 | vty_out (vty, "Interface Down Notifications: %d%s", client->ifdown_cnt, | |
2223 | VTY_NEWLINE); | |
2224 | ||
2225 | vty_out (vty, "%s", VTY_NEWLINE); | |
2226 | return; | |
2227 | } | |
2228 | ||
2229 | static void | |
2230 | zebra_show_client_brief (struct vty *vty, struct zserv *client) | |
2231 | { | |
2232 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2233 | char wbuf[ZEBRA_TIME_BUF]; | |
2234 | ||
2235 | vty_out (vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d%s", | |
2236 | zebra_route_string(client->proto), | |
2237 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2238 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2239 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2240 | client->v4_route_add_cnt+client->v4_route_upd8_cnt, | |
2241 | client->v4_route_del_cnt, | |
2242 | client->v6_route_add_cnt+client->v6_route_upd8_cnt, | |
2243 | client->v6_route_del_cnt, VTY_NEWLINE); | |
2244 | ||
2245 | } | |
2246 | ||
2247 | ||
718e3744 | 2248 | /* Display default rtm_table for all clients. */ |
2249 | DEFUN (show_table, | |
2250 | show_table_cmd, | |
2251 | "show table", | |
2252 | SHOW_STR | |
2253 | "default routing table to use for all clients\n") | |
2254 | { | |
b21b19c5 | 2255 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, |
718e3744 | 2256 | VTY_NEWLINE); |
2257 | return CMD_SUCCESS; | |
2258 | } | |
2259 | ||
6147e2c6 | 2260 | DEFUN (config_table, |
718e3744 | 2261 | config_table_cmd, |
2262 | "table TABLENO", | |
2263 | "Configure target kernel routing table\n" | |
2264 | "TABLE integer\n") | |
2265 | { | |
ed5c254b | 2266 | zebrad.rtm_table_default = strtol (argv[0], (char**)0, 10); |
718e3744 | 2267 | return CMD_SUCCESS; |
2268 | } | |
2269 | ||
813d4307 DW |
2270 | DEFUN (no_config_table, |
2271 | no_config_table_cmd, | |
2272 | "no table TABLENO", | |
2273 | NO_STR | |
2274 | "Configure target kernel routing table\n" | |
2275 | "TABLE integer\n") | |
2276 | { | |
2277 | zebrad.rtm_table_default = 0; | |
2278 | return CMD_SUCCESS; | |
2279 | } | |
2280 | ||
647e4f1f | 2281 | DEFUN (ip_forwarding, |
2282 | ip_forwarding_cmd, | |
2283 | "ip forwarding", | |
2284 | IP_STR | |
2285 | "Turn on IP forwarding") | |
2286 | { | |
2287 | int ret; | |
2288 | ||
2289 | ret = ipforward (); | |
b71f00f2 | 2290 | if (ret == 0) |
2291 | ret = ipforward_on (); | |
647e4f1f | 2292 | |
647e4f1f | 2293 | if (ret == 0) |
2294 | { | |
2295 | vty_out (vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
2296 | return CMD_WARNING; | |
2297 | } | |
2298 | ||
2299 | return CMD_SUCCESS; | |
2300 | } | |
2301 | ||
718e3744 | 2302 | DEFUN (no_ip_forwarding, |
2303 | no_ip_forwarding_cmd, | |
2304 | "no ip forwarding", | |
2305 | NO_STR | |
2306 | IP_STR | |
2307 | "Turn off IP forwarding") | |
2308 | { | |
2309 | int ret; | |
2310 | ||
2311 | ret = ipforward (); | |
b71f00f2 | 2312 | if (ret != 0) |
2313 | ret = ipforward_off (); | |
718e3744 | 2314 | |
718e3744 | 2315 | if (ret != 0) |
2316 | { | |
2317 | vty_out (vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
2318 | return CMD_WARNING; | |
2319 | } | |
2320 | ||
2321 | return CMD_SUCCESS; | |
2322 | } | |
2323 | ||
2324 | /* This command is for debugging purpose. */ | |
2325 | DEFUN (show_zebra_client, | |
2326 | show_zebra_client_cmd, | |
2327 | "show zebra client", | |
2328 | SHOW_STR | |
2329 | "Zebra information" | |
2330 | "Client information") | |
2331 | { | |
52dc7ee6 | 2332 | struct listnode *node; |
718e3744 | 2333 | struct zserv *client; |
2334 | ||
1eb8ef25 | 2335 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) |
04b02fda DS |
2336 | zebra_show_client_detail(vty, client); |
2337 | ||
2338 | return CMD_SUCCESS; | |
2339 | } | |
2340 | ||
2341 | /* This command is for debugging purpose. */ | |
2342 | DEFUN (show_zebra_client_summary, | |
2343 | show_zebra_client_summary_cmd, | |
2344 | "show zebra client summary", | |
2345 | SHOW_STR | |
2346 | "Zebra information brief" | |
2347 | "Client information brief") | |
2348 | { | |
2349 | struct listnode *node; | |
2350 | struct zserv *client; | |
2351 | ||
2352 | vty_out (vty, "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes %s", | |
2353 | VTY_NEWLINE); | |
2354 | vty_out (vty,"--------------------------------------------------------------------------------%s", | |
2355 | VTY_NEWLINE); | |
2356 | ||
2357 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) | |
2358 | zebra_show_client_brief(vty, client); | |
fb018d25 | 2359 | |
04b02fda | 2360 | vty_out (vty, "Routes column shows (added+updated)/deleted%s", VTY_NEWLINE); |
718e3744 | 2361 | return CMD_SUCCESS; |
2362 | } | |
2363 | ||
2364 | /* Table configuration write function. */ | |
b9df2d25 | 2365 | static int |
718e3744 | 2366 | config_write_table (struct vty *vty) |
2367 | { | |
b21b19c5 | 2368 | if (zebrad.rtm_table_default) |
2369 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, | |
718e3744 | 2370 | VTY_NEWLINE); |
2371 | return 0; | |
2372 | } | |
2373 | ||
2374 | /* table node for routing tables. */ | |
7fc626de | 2375 | static struct cmd_node table_node = |
718e3744 | 2376 | { |
2377 | TABLE_NODE, | |
2378 | "", /* This node has no interface. */ | |
2379 | 1 | |
2380 | }; | |
6b0655a2 | 2381 | |
718e3744 | 2382 | /* Only display ip forwarding is enabled or not. */ |
2383 | DEFUN (show_ip_forwarding, | |
2384 | show_ip_forwarding_cmd, | |
2385 | "show ip forwarding", | |
2386 | SHOW_STR | |
2387 | IP_STR | |
2388 | "IP forwarding status\n") | |
2389 | { | |
2390 | int ret; | |
2391 | ||
2392 | ret = ipforward (); | |
2393 | ||
2394 | if (ret == 0) | |
2395 | vty_out (vty, "IP forwarding is off%s", VTY_NEWLINE); | |
2396 | else | |
2397 | vty_out (vty, "IP forwarding is on%s", VTY_NEWLINE); | |
2398 | return CMD_SUCCESS; | |
2399 | } | |
2400 | ||
2401 | #ifdef HAVE_IPV6 | |
2402 | /* Only display ipv6 forwarding is enabled or not. */ | |
2403 | DEFUN (show_ipv6_forwarding, | |
2404 | show_ipv6_forwarding_cmd, | |
2405 | "show ipv6 forwarding", | |
2406 | SHOW_STR | |
2407 | "IPv6 information\n" | |
2408 | "Forwarding status\n") | |
2409 | { | |
2410 | int ret; | |
2411 | ||
2412 | ret = ipforward_ipv6 (); | |
2413 | ||
2414 | switch (ret) | |
2415 | { | |
2416 | case -1: | |
2417 | vty_out (vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
2418 | break; | |
2419 | case 0: | |
2420 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2421 | break; | |
2422 | case 1: | |
2423 | vty_out (vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
2424 | break; | |
2425 | default: | |
2426 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2427 | break; | |
2428 | } | |
2429 | return CMD_SUCCESS; | |
2430 | } | |
2431 | ||
55906724 | 2432 | DEFUN (ipv6_forwarding, |
2433 | ipv6_forwarding_cmd, | |
2434 | "ipv6 forwarding", | |
2435 | IPV6_STR | |
2436 | "Turn on IPv6 forwarding") | |
2437 | { | |
2438 | int ret; | |
2439 | ||
41d3fc96 | 2440 | ret = ipforward_ipv6 (); |
b71f00f2 | 2441 | if (ret == 0) |
2442 | ret = ipforward_ipv6_on (); | |
41d3fc96 | 2443 | |
41d3fc96 | 2444 | if (ret == 0) |
55906724 | 2445 | { |
2446 | vty_out (vty, "Can't turn on IPv6 forwarding%s", VTY_NEWLINE); | |
2447 | return CMD_WARNING; | |
2448 | } | |
2449 | ||
2450 | return CMD_SUCCESS; | |
2451 | } | |
2452 | ||
718e3744 | 2453 | DEFUN (no_ipv6_forwarding, |
2454 | no_ipv6_forwarding_cmd, | |
2455 | "no ipv6 forwarding", | |
2456 | NO_STR | |
55906724 | 2457 | IPV6_STR |
2458 | "Turn off IPv6 forwarding") | |
718e3744 | 2459 | { |
2460 | int ret; | |
2461 | ||
41d3fc96 | 2462 | ret = ipforward_ipv6 (); |
b71f00f2 | 2463 | if (ret != 0) |
2464 | ret = ipforward_ipv6_off (); | |
41d3fc96 | 2465 | |
718e3744 | 2466 | if (ret != 0) |
2467 | { | |
2468 | vty_out (vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
2469 | return CMD_WARNING; | |
2470 | } | |
2471 | ||
2472 | return CMD_SUCCESS; | |
2473 | } | |
2474 | ||
2475 | #endif /* HAVE_IPV6 */ | |
2476 | ||
2477 | /* IPForwarding configuration write function. */ | |
719e9741 | 2478 | static int |
718e3744 | 2479 | config_write_forwarding (struct vty *vty) |
2480 | { | |
18a6dce6 | 2481 | /* FIXME: Find better place for that. */ |
2482 | router_id_write (vty); | |
2483 | ||
f40dd648 QY |
2484 | if (!ipforward ()) |
2485 | vty_out (vty, "no ip forwarding%s", VTY_NEWLINE); | |
718e3744 | 2486 | #ifdef HAVE_IPV6 |
f40dd648 QY |
2487 | if (!ipforward_ipv6 ()) |
2488 | vty_out (vty, "no ipv6 forwarding%s", VTY_NEWLINE); | |
718e3744 | 2489 | #endif /* HAVE_IPV6 */ |
2490 | vty_out (vty, "!%s", VTY_NEWLINE); | |
2491 | return 0; | |
2492 | } | |
2493 | ||
2494 | /* table node for routing tables. */ | |
7fc626de | 2495 | static struct cmd_node forwarding_node = |
718e3744 | 2496 | { |
2497 | FORWARDING_NODE, | |
2498 | "", /* This node has no interface. */ | |
2499 | 1 | |
2500 | }; | |
2501 | ||
6b0655a2 | 2502 | |
718e3744 | 2503 | /* Initialisation of zebra and installation of commands. */ |
2504 | void | |
a1ac18c4 | 2505 | zebra_init (void) |
718e3744 | 2506 | { |
2507 | /* Client list init. */ | |
b21b19c5 | 2508 | zebrad.client_list = list_new (); |
718e3744 | 2509 | |
718e3744 | 2510 | /* Install configuration write function. */ |
2511 | install_node (&table_node, config_write_table); | |
2512 | install_node (&forwarding_node, config_write_forwarding); | |
2513 | ||
2514 | install_element (VIEW_NODE, &show_ip_forwarding_cmd); | |
2515 | install_element (ENABLE_NODE, &show_ip_forwarding_cmd); | |
647e4f1f | 2516 | install_element (CONFIG_NODE, &ip_forwarding_cmd); |
718e3744 | 2517 | install_element (CONFIG_NODE, &no_ip_forwarding_cmd); |
2518 | install_element (ENABLE_NODE, &show_zebra_client_cmd); | |
04b02fda | 2519 | install_element (ENABLE_NODE, &show_zebra_client_summary_cmd); |
718e3744 | 2520 | |
2521 | #ifdef HAVE_NETLINK | |
2522 | install_element (VIEW_NODE, &show_table_cmd); | |
2523 | install_element (ENABLE_NODE, &show_table_cmd); | |
2524 | install_element (CONFIG_NODE, &config_table_cmd); | |
813d4307 | 2525 | install_element (CONFIG_NODE, &no_config_table_cmd); |
718e3744 | 2526 | #endif /* HAVE_NETLINK */ |
2527 | ||
2528 | #ifdef HAVE_IPV6 | |
2529 | install_element (VIEW_NODE, &show_ipv6_forwarding_cmd); | |
2530 | install_element (ENABLE_NODE, &show_ipv6_forwarding_cmd); | |
55906724 | 2531 | install_element (CONFIG_NODE, &ipv6_forwarding_cmd); |
718e3744 | 2532 | install_element (CONFIG_NODE, &no_ipv6_forwarding_cmd); |
2533 | #endif /* HAVE_IPV6 */ | |
7514fb77 PJ |
2534 | |
2535 | /* Route-map */ | |
2536 | zebra_route_map_init (); | |
718e3744 | 2537 | } |
97be79f9 DO |
2538 | |
2539 | /* Make zebra server socket, wiping any existing one (see bug #403). */ | |
2540 | void | |
b5114685 | 2541 | zebra_zserv_socket_init (char *path) |
97be79f9 DO |
2542 | { |
2543 | #ifdef HAVE_TCP_ZEBRA | |
2544 | zebra_serv (); | |
2545 | #else | |
b5114685 | 2546 | zebra_serv_un (path ? path : ZEBRA_SERV_PATH); |
97be79f9 DO |
2547 | #endif /* HAVE_TCP_ZEBRA */ |
2548 | } |