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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" | |
30 | #include "table.h" | |
31 | #include "rib.h" | |
32 | #include "network.h" | |
33 | #include "sockunion.h" | |
34 | #include "log.h" | |
35 | #include "zclient.h" | |
edd7c245 | 36 | #include "privs.h" |
718e3744 | 37 | |
38 | #include "zebra/zserv.h" | |
39 | #include "zebra/redistribute.h" | |
40 | #include "zebra/debug.h" | |
41 | #include "zebra/ipforward.h" | |
42 | \f | |
43 | /* Event list of zebra. */ | |
44 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
45 | ||
46 | /* Zebra client list. */ | |
47 | list client_list; | |
48 | ||
49 | /* Default rtm_table for all clients */ | |
50 | int rtm_table_default = 0; | |
51 | ||
52 | void zebra_event (enum event event, int sock, struct zserv *client); | |
ccf3557b | 53 | |
edd7c245 | 54 | extern struct zebra_privs_t zserv_privs; |
55 | ||
ccf3557b | 56 | extern struct thread_master *master; |
718e3744 | 57 | \f |
58 | /* For logging of zebra meesages. */ | |
59 | char *zebra_command_str [] = | |
60 | { | |
61 | "NULL", | |
62 | "ZEBRA_INTERFACE_ADD", | |
63 | "ZEBRA_INTERFACE_DELETE", | |
64 | "ZEBRA_INTERFACE_ADDRESS_ADD", | |
65 | "ZEBRA_INTERFACE_ADDRESS_DELETE", | |
66 | "ZEBRA_INTERFACE_UP", | |
67 | "ZEBRA_INTERFACE_DOWN", | |
68 | "ZEBRA_IPV4_ROUTE_ADD", | |
69 | "ZEBRA_IPV4_ROUTE_DELETE", | |
70 | "ZEBRA_IPV6_ROUTE_ADD", | |
71 | "ZEBRA_IPV6_ROUTE_DELETE", | |
72 | "ZEBRA_REDISTRIBUTE_ADD", | |
73 | "ZEBRA_REDISTRIBUTE_DELETE", | |
74 | "ZEBRA_REDISTRIBUTE_DEFAULT_ADD", | |
75 | "ZEBRA_REDISTRIBUTE_DEFAULT_DELETE", | |
76 | "ZEBRA_IPV4_NEXTHOP_LOOKUP", | |
77 | "ZEBRA_IPV6_NEXTHOP_LOOKUP", | |
78 | "ZEBRA_IPV4_IMPORT_LOOKUP", | |
79 | "ZEBRA_IPV6_IMPORT_LOOKUP" | |
80 | }; | |
81 | \f | |
ccf3557b | 82 | struct zebra_message_queue |
83 | { | |
84 | struct nsm_message_queue *next; | |
85 | struct nsm_message_queue *prev; | |
86 | ||
87 | u_char *buf; | |
88 | u_int16_t length; | |
89 | u_int16_t written; | |
90 | }; | |
91 | ||
92 | struct thread *t_write; | |
93 | struct fifo message_queue; | |
94 | ||
95 | int | |
96 | zebra_server_dequeue (struct thread *t) | |
97 | { | |
98 | int sock; | |
99 | int nbytes; | |
100 | struct zebra_message_queue *queue; | |
101 | ||
102 | sock = THREAD_FD (t); | |
103 | t_write = NULL; | |
104 | ||
105 | queue = (struct zebra_message_queue *) FIFO_HEAD (&message_queue); | |
106 | if (queue) | |
107 | { | |
108 | nbytes = write (sock, queue->buf + queue->written, | |
109 | queue->length - queue->written); | |
110 | ||
111 | if (nbytes <= 0) | |
112 | { | |
113 | if (errno != EAGAIN) | |
114 | return -1; | |
115 | } | |
116 | else if (nbytes != (queue->length - queue->written)) | |
117 | { | |
118 | queue->written += nbytes; | |
119 | } | |
120 | else | |
121 | { | |
122 | FIFO_DEL (queue); | |
123 | XFREE (MTYPE_TMP, queue->buf); | |
124 | XFREE (MTYPE_TMP, queue); | |
125 | } | |
126 | } | |
127 | ||
128 | if (FIFO_TOP (&message_queue)) | |
129 | THREAD_WRITE_ON (master, t_write, zebra_server_dequeue, NULL, sock); | |
130 | ||
131 | return 0; | |
132 | } | |
133 | ||
134 | /* Enqueu message. */ | |
135 | void | |
136 | zebra_server_enqueue (int sock, u_char *buf, unsigned long length, | |
137 | unsigned long written) | |
138 | { | |
139 | struct zebra_message_queue *queue; | |
140 | ||
141 | queue = XCALLOC (MTYPE_TMP, sizeof (struct zebra_message_queue)); | |
142 | queue->buf = XMALLOC (MTYPE_TMP, length); | |
143 | memcpy (queue->buf, buf, length); | |
144 | queue->length = length; | |
145 | queue->written = written; | |
146 | ||
147 | FIFO_ADD (&message_queue, queue); | |
148 | ||
149 | THREAD_WRITE_ON (master, t_write, zebra_server_dequeue, NULL, sock); | |
150 | } | |
151 | ||
152 | int | |
153 | zebra_server_send_message (int sock, u_char *buf, unsigned long length) | |
154 | { | |
155 | int nbytes; | |
156 | ||
157 | if (FIFO_TOP (&message_queue)) | |
158 | { | |
159 | zebra_server_enqueue (sock, buf, length, 0); | |
160 | return 0; | |
161 | } | |
162 | ||
163 | /* Send message. */ | |
164 | nbytes = write (sock, buf, length); | |
165 | ||
166 | if (nbytes <= 0) | |
167 | { | |
168 | if (errno == EAGAIN) | |
169 | zebra_server_enqueue (sock, buf, length, 0); | |
170 | else | |
171 | return -1; | |
172 | } | |
173 | else if (nbytes != length) | |
174 | zebra_server_enqueue (sock, buf, length, nbytes); | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
718e3744 | 179 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
180 | int | |
181 | zsend_interface_add (struct zserv *client, struct interface *ifp) | |
182 | { | |
183 | struct stream *s; | |
184 | ||
185 | /* Check this client need interface information. */ | |
186 | if (! client->ifinfo) | |
187 | return -1; | |
188 | ||
189 | s = client->obuf; | |
190 | stream_reset (s); | |
191 | ||
192 | /* Place holder for size. */ | |
193 | stream_putw (s, 0); | |
194 | ||
195 | /* Message type. */ | |
196 | stream_putc (s, ZEBRA_INTERFACE_ADD); | |
197 | ||
198 | /* Interface information. */ | |
199 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
200 | stream_putl (s, ifp->ifindex); | |
2e3b2e47 | 201 | stream_putc (s, ifp->status); |
718e3744 | 202 | stream_putl (s, ifp->flags); |
203 | stream_putl (s, ifp->metric); | |
204 | stream_putl (s, ifp->mtu); | |
205 | stream_putl (s, ifp->bandwidth); | |
206 | #ifdef HAVE_SOCKADDR_DL | |
207 | stream_put (s, &ifp->sdl, sizeof (ifp->sdl)); | |
208 | #else | |
209 | stream_putl (s, ifp->hw_addr_len); | |
210 | if (ifp->hw_addr_len) | |
211 | stream_put (s, ifp->hw_addr, ifp->hw_addr_len); | |
212 | #endif /* HAVE_SOCKADDR_DL */ | |
213 | ||
214 | /* Write packet size. */ | |
215 | stream_putw_at (s, 0, stream_get_endp (s)); | |
216 | ||
ccf3557b | 217 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
218 | ||
219 | return 0; | |
718e3744 | 220 | } |
221 | ||
222 | /* Interface deletion from zebra daemon. */ | |
223 | int | |
224 | zsend_interface_delete (struct zserv *client, struct interface *ifp) | |
225 | { | |
226 | struct stream *s; | |
227 | ||
228 | /* Check this client need interface information. */ | |
229 | if (! client->ifinfo) | |
230 | return -1; | |
231 | ||
232 | s = client->obuf; | |
233 | stream_reset (s); | |
234 | ||
235 | /* Packet length placeholder. */ | |
236 | stream_putw (s, 0); | |
237 | ||
238 | /* Interface information. */ | |
239 | stream_putc (s, ZEBRA_INTERFACE_DELETE); | |
240 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
241 | stream_putl (s, ifp->ifindex); | |
2e3b2e47 | 242 | stream_putc (s, ifp->status); |
718e3744 | 243 | stream_putl (s, ifp->flags); |
244 | stream_putl (s, ifp->metric); | |
245 | stream_putl (s, ifp->mtu); | |
246 | stream_putl (s, ifp->bandwidth); | |
247 | ||
248 | /* Write packet length. */ | |
249 | stream_putw_at (s, 0, stream_get_endp (s)); | |
250 | ||
ccf3557b | 251 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
252 | ||
253 | return 0; | |
718e3744 | 254 | } |
255 | ||
256 | /* Interface address is added. Send ZEBRA_INTERFACE_ADDRESS_ADD to the | |
257 | client. */ | |
258 | int | |
259 | zsend_interface_address_add (struct zserv *client, struct interface *ifp, | |
260 | struct connected *ifc) | |
261 | { | |
262 | int blen; | |
263 | struct stream *s; | |
264 | struct prefix *p; | |
265 | ||
266 | /* Check this client need interface information. */ | |
267 | if (! client->ifinfo) | |
268 | return -1; | |
269 | ||
270 | s = client->obuf; | |
271 | stream_reset (s); | |
272 | ||
273 | /* Place holder for size. */ | |
274 | stream_putw (s, 0); | |
275 | ||
276 | stream_putc (s, ZEBRA_INTERFACE_ADDRESS_ADD); | |
277 | stream_putl (s, ifp->ifindex); | |
278 | ||
279 | /* Interface address flag. */ | |
280 | stream_putc (s, ifc->flags); | |
281 | ||
282 | /* Prefix information. */ | |
283 | p = ifc->address; | |
284 | stream_putc (s, p->family); | |
285 | blen = prefix_blen (p); | |
286 | stream_put (s, &p->u.prefix, blen); | |
287 | stream_putc (s, p->prefixlen); | |
288 | ||
289 | /* Destination. */ | |
290 | p = ifc->destination; | |
291 | if (p) | |
292 | stream_put (s, &p->u.prefix, blen); | |
293 | else | |
294 | stream_put (s, NULL, blen); | |
295 | ||
296 | /* Write packet size. */ | |
297 | stream_putw_at (s, 0, stream_get_endp (s)); | |
298 | ||
ccf3557b | 299 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
300 | ||
301 | return 0; | |
718e3744 | 302 | } |
303 | ||
304 | /* Interface address is deleted. Send ZEBRA_INTERFACE_ADDRESS_DELETE | |
305 | to the client. */ | |
306 | int | |
307 | zsend_interface_address_delete (struct zserv *client, struct interface *ifp, | |
308 | struct connected *ifc) | |
309 | { | |
310 | int blen; | |
311 | struct stream *s; | |
312 | struct prefix *p; | |
313 | ||
314 | /* Check this client need interface information. */ | |
315 | if (! client->ifinfo) | |
316 | return -1; | |
317 | ||
318 | s = client->obuf; | |
319 | stream_reset (s); | |
320 | ||
321 | /* Place holder for size. */ | |
322 | stream_putw (s, 0); | |
323 | ||
324 | stream_putc (s, ZEBRA_INTERFACE_ADDRESS_DELETE); | |
325 | stream_putl (s, ifp->ifindex); | |
326 | ||
327 | /* Interface address flag. */ | |
328 | stream_putc (s, ifc->flags); | |
329 | ||
330 | /* Prefix information. */ | |
331 | p = ifc->address; | |
332 | stream_putc (s, p->family); | |
333 | blen = prefix_blen (p); | |
334 | stream_put (s, &p->u.prefix, blen); | |
335 | ||
336 | p = ifc->destination; | |
337 | if (p) | |
338 | stream_put (s, &p->u.prefix, blen); | |
339 | else | |
340 | stream_put (s, NULL, blen); | |
341 | ||
342 | /* Write packet size. */ | |
343 | stream_putw_at (s, 0, stream_get_endp (s)); | |
344 | ||
ccf3557b | 345 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
346 | ||
347 | return 0; | |
718e3744 | 348 | } |
349 | ||
350 | int | |
351 | zsend_interface_up (struct zserv *client, struct interface *ifp) | |
352 | { | |
353 | struct stream *s; | |
354 | ||
355 | /* Check this client need interface information. */ | |
356 | if (! client->ifinfo) | |
357 | return -1; | |
358 | ||
359 | s = client->obuf; | |
360 | stream_reset (s); | |
361 | ||
362 | /* Place holder for size. */ | |
363 | stream_putw (s, 0); | |
364 | ||
365 | /* Zebra command. */ | |
366 | stream_putc (s, ZEBRA_INTERFACE_UP); | |
367 | ||
368 | /* Interface information. */ | |
369 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
370 | stream_putl (s, ifp->ifindex); | |
2e3b2e47 | 371 | stream_putc (s, ifp->status); |
718e3744 | 372 | stream_putl (s, ifp->flags); |
373 | stream_putl (s, ifp->metric); | |
374 | stream_putl (s, ifp->mtu); | |
375 | stream_putl (s, ifp->bandwidth); | |
376 | ||
377 | /* Write packet size. */ | |
378 | stream_putw_at (s, 0, stream_get_endp (s)); | |
379 | ||
ccf3557b | 380 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
381 | ||
382 | return 0; | |
718e3744 | 383 | } |
384 | ||
385 | int | |
386 | zsend_interface_down (struct zserv *client, struct interface *ifp) | |
387 | { | |
388 | struct stream *s; | |
389 | ||
390 | /* Check this client need interface information. */ | |
391 | if (! client->ifinfo) | |
392 | return -1; | |
393 | ||
394 | s = client->obuf; | |
395 | stream_reset (s); | |
396 | ||
397 | /* Place holder for size. */ | |
398 | stream_putw (s, 0); | |
399 | ||
400 | /* Zebra command. */ | |
401 | stream_putc (s, ZEBRA_INTERFACE_DOWN); | |
402 | ||
403 | /* Interface information. */ | |
404 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
405 | stream_putl (s, ifp->ifindex); | |
2e3b2e47 | 406 | stream_putc (s, ifp->status); |
718e3744 | 407 | stream_putl (s, ifp->flags); |
408 | stream_putl (s, ifp->metric); | |
409 | stream_putl (s, ifp->mtu); | |
410 | stream_putl (s, ifp->bandwidth); | |
411 | ||
412 | /* Write packet size. */ | |
413 | stream_putw_at (s, 0, stream_get_endp (s)); | |
414 | ||
ccf3557b | 415 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
416 | ||
417 | return 0; | |
718e3744 | 418 | } |
419 | ||
420 | int | |
421 | zsend_ipv4_add_multipath (struct zserv *client, struct prefix *p, | |
422 | struct rib *rib) | |
423 | { | |
424 | int psize; | |
425 | struct stream *s; | |
426 | struct nexthop *nexthop; | |
427 | struct in_addr empty; | |
428 | ||
429 | empty.s_addr = 0; | |
430 | s = client->obuf; | |
431 | stream_reset (s); | |
432 | ||
433 | /* Place holder for size. */ | |
434 | stream_putw (s, 0); | |
435 | ||
436 | /* Put command, type and nexthop. */ | |
437 | stream_putc (s, ZEBRA_IPV4_ROUTE_ADD); | |
438 | stream_putc (s, rib->type); | |
439 | stream_putc (s, rib->flags); | |
440 | stream_putc (s, ZAPI_MESSAGE_NEXTHOP | ZAPI_MESSAGE_IFINDEX | ZAPI_MESSAGE_METRIC); | |
441 | ||
442 | /* Prefix. */ | |
443 | psize = PSIZE (p->prefixlen); | |
444 | stream_putc (s, p->prefixlen); | |
445 | stream_write (s, (u_char *)&p->u.prefix, psize); | |
446 | ||
447 | /* Nexthop */ | |
448 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
449 | { | |
450 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
451 | { | |
452 | stream_putc (s, 1); | |
453 | ||
726f9b2b | 454 | /* XXX: Waht's about NEXTHOP_TYPE_IPV4_IFNAME ? */ |
718e3744 | 455 | if (nexthop->type == NEXTHOP_TYPE_IPV4 |
456 | || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX) | |
457 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
458 | else | |
459 | stream_put_in_addr (s, &empty); | |
460 | ||
461 | /* Interface index. */ | |
462 | stream_putc (s, 1); | |
463 | stream_putl (s, nexthop->ifindex); | |
464 | ||
465 | break; | |
466 | } | |
467 | } | |
468 | ||
469 | /* Metric */ | |
470 | stream_putl (s, rib->metric); | |
471 | ||
472 | /* Write packet size. */ | |
473 | stream_putw_at (s, 0, stream_get_endp (s)); | |
474 | ||
ccf3557b | 475 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
476 | ||
477 | return 0; | |
718e3744 | 478 | } |
479 | ||
480 | int | |
481 | zsend_ipv4_delete_multipath (struct zserv *client, struct prefix *p, | |
482 | struct rib *rib) | |
483 | { | |
484 | int psize; | |
485 | struct stream *s; | |
486 | struct nexthop *nexthop; | |
487 | struct in_addr empty; | |
488 | ||
489 | empty.s_addr = 0; | |
490 | ||
491 | s = client->obuf; | |
492 | stream_reset (s); | |
493 | ||
494 | /* Place holder for size. */ | |
495 | stream_putw (s, 0); | |
496 | ||
497 | /* Put command, type and nexthop. */ | |
498 | stream_putc (s, ZEBRA_IPV4_ROUTE_DELETE); | |
499 | stream_putc (s, rib->type); | |
500 | stream_putc (s, rib->flags); | |
501 | stream_putc (s, ZAPI_MESSAGE_NEXTHOP|ZAPI_MESSAGE_IFINDEX); | |
502 | ||
503 | /* Prefix. */ | |
504 | psize = PSIZE (p->prefixlen); | |
505 | stream_putc (s, p->prefixlen); | |
506 | stream_write (s, (u_char *)&p->u.prefix, psize); | |
507 | ||
508 | /* Nexthop */ | |
509 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
510 | { | |
511 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
512 | { | |
513 | stream_putc (s, 1); | |
514 | ||
515 | if (nexthop->type == NEXTHOP_TYPE_IPV4) | |
516 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
517 | else | |
518 | stream_put_in_addr (s, &empty); | |
519 | ||
520 | /* Interface index. */ | |
521 | stream_putc (s, 1); | |
522 | stream_putl (s, nexthop->ifindex); | |
523 | ||
524 | break; | |
525 | } | |
526 | } | |
527 | ||
528 | /* Write packet size. */ | |
529 | stream_putw_at (s, 0, stream_get_endp (s)); | |
530 | ||
ccf3557b | 531 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
532 | ||
533 | return 0; | |
718e3744 | 534 | } |
535 | ||
726f9b2b | 536 | #if 0 |
537 | #warning oldies | |
718e3744 | 538 | int |
539 | zsend_ipv4_add (struct zserv *client, int type, int flags, | |
540 | struct prefix_ipv4 *p, struct in_addr *nexthop, | |
541 | unsigned int ifindex) | |
542 | { | |
543 | int psize; | |
544 | struct stream *s; | |
545 | ||
546 | s = client->obuf; | |
547 | stream_reset (s); | |
548 | ||
549 | /* Place holder for size. */ | |
550 | stream_putw (s, 0); | |
551 | ||
552 | /* Put command, type and nexthop. */ | |
553 | stream_putc (s, ZEBRA_IPV4_ROUTE_ADD); | |
554 | stream_putc (s, type); | |
555 | stream_putc (s, flags); | |
556 | stream_putc (s, ZAPI_MESSAGE_NEXTHOP|ZAPI_MESSAGE_IFINDEX); | |
557 | ||
558 | /* Prefix. */ | |
559 | psize = PSIZE (p->prefixlen); | |
560 | stream_putc (s, p->prefixlen); | |
561 | stream_write (s, (u_char *)&p->prefix, psize); | |
562 | ||
563 | /* Nexthop */ | |
564 | stream_putc (s, 1); | |
565 | stream_put_in_addr (s, nexthop); | |
566 | ||
567 | /* Interface index. */ | |
568 | stream_putc (s, 1); | |
569 | stream_putl (s, ifindex); | |
570 | ||
571 | /* Write packet size. */ | |
572 | stream_putw_at (s, 0, stream_get_endp (s)); | |
573 | ||
ccf3557b | 574 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
575 | ||
576 | return 0; | |
718e3744 | 577 | } |
578 | ||
579 | int | |
580 | zsend_ipv4_delete (struct zserv *client, int type, int flags, | |
581 | struct prefix_ipv4 *p, struct in_addr *nexthop, | |
582 | unsigned int ifindex) | |
583 | { | |
584 | int psize; | |
585 | struct stream *s; | |
586 | ||
587 | s = client->obuf; | |
588 | stream_reset (s); | |
589 | ||
590 | /* Place holder for size. */ | |
591 | stream_putw (s, 0); | |
592 | ||
593 | /* Put command, type and nexthop. */ | |
594 | stream_putc (s, ZEBRA_IPV4_ROUTE_DELETE); | |
595 | stream_putc (s, type); | |
596 | stream_putc (s, flags); | |
597 | stream_putc (s, ZAPI_MESSAGE_NEXTHOP|ZAPI_MESSAGE_IFINDEX); | |
598 | ||
599 | /* Prefix. */ | |
600 | psize = PSIZE (p->prefixlen); | |
601 | stream_putc (s, p->prefixlen); | |
602 | stream_write (s, (u_char *)&p->prefix, psize); | |
603 | ||
604 | /* Nexthop */ | |
605 | stream_putc (s, 1); | |
606 | stream_put_in_addr (s, nexthop); | |
607 | ||
608 | /* Interface index. */ | |
609 | stream_putc (s, 1); | |
610 | stream_putl (s, ifindex); | |
611 | ||
612 | /* Write packet size. */ | |
613 | stream_putw_at (s, 0, stream_get_endp (s)); | |
614 | ||
ccf3557b | 615 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
616 | ||
617 | return 0; | |
718e3744 | 618 | } |
726f9b2b | 619 | #endif /* oldies */ |
718e3744 | 620 | |
621 | #ifdef HAVE_IPV6 | |
726f9b2b | 622 | #if 0 |
623 | #warning oldies | |
718e3744 | 624 | int |
625 | zsend_ipv6_add (struct zserv *client, int type, int flags, | |
626 | struct prefix_ipv6 *p, struct in6_addr *nexthop, | |
627 | unsigned int ifindex) | |
628 | { | |
629 | int psize; | |
630 | struct stream *s; | |
631 | ||
632 | s = client->obuf; | |
633 | stream_reset (s); | |
634 | ||
635 | /* Place holder for size. */ | |
636 | stream_putw (s, 0); | |
637 | ||
638 | /* Put command, type and nexthop. */ | |
639 | stream_putc (s, ZEBRA_IPV6_ROUTE_ADD); | |
640 | stream_putc (s, type); | |
641 | stream_putc (s, flags); | |
642 | stream_putc (s, ZAPI_MESSAGE_NEXTHOP|ZAPI_MESSAGE_IFINDEX); | |
643 | ||
644 | /* Prefix. */ | |
645 | psize = PSIZE (p->prefixlen); | |
646 | stream_putc (s, p->prefixlen); | |
647 | stream_write (s, (u_char *)&p->prefix, psize); | |
648 | ||
649 | /* Nexthop */ | |
650 | stream_putc (s, 1); | |
651 | stream_write (s, (u_char *)nexthop, 16); | |
652 | ||
653 | /* Interface index. */ | |
654 | stream_putc (s, 1); | |
655 | stream_putl (s, ifindex); | |
656 | ||
657 | /* Write packet size. */ | |
658 | stream_putw_at (s, 0, stream_get_endp (s)); | |
659 | ||
ccf3557b | 660 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
661 | ||
662 | return 0; | |
718e3744 | 663 | } |
726f9b2b | 664 | #endif /* oldies */ |
718e3744 | 665 | |
666 | int | |
667 | zsend_ipv6_add_multipath (struct zserv *client, struct prefix *p, | |
668 | struct rib *rib) | |
669 | { | |
670 | int psize; | |
671 | struct stream *s; | |
672 | struct nexthop *nexthop; | |
673 | struct in6_addr empty; | |
674 | ||
675 | memset (&empty, 0, sizeof (struct in6_addr)); | |
676 | s = client->obuf; | |
677 | stream_reset (s); | |
678 | ||
679 | /* Place holder for size. */ | |
680 | stream_putw (s, 0); | |
681 | ||
682 | /* Put command, type and nexthop. */ | |
683 | stream_putc (s, ZEBRA_IPV6_ROUTE_ADD); | |
684 | stream_putc (s, rib->type); | |
685 | stream_putc (s, rib->flags); | |
686 | stream_putc (s, ZAPI_MESSAGE_NEXTHOP | ZAPI_MESSAGE_IFINDEX | ZAPI_MESSAGE_METRIC); | |
687 | ||
688 | /* Prefix. */ | |
689 | psize = PSIZE (p->prefixlen); | |
690 | stream_putc (s, p->prefixlen); | |
691 | stream_write (s, (u_char *) &p->u.prefix, psize); | |
692 | ||
693 | /* Nexthop */ | |
694 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
695 | { | |
696 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
697 | { | |
698 | stream_putc (s, 1); | |
699 | ||
726f9b2b | 700 | if (nexthop->type == NEXTHOP_TYPE_IPV6 |
701 | || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX | |
702 | || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME) | |
718e3744 | 703 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); |
704 | else | |
705 | stream_write (s, (u_char *) &empty, 16); | |
706 | ||
707 | /* Interface index. */ | |
708 | stream_putc (s, 1); | |
709 | stream_putl (s, nexthop->ifindex); | |
710 | ||
711 | break; | |
712 | } | |
713 | } | |
714 | ||
715 | /* Metric */ | |
716 | stream_putl (s, rib->metric); | |
717 | ||
718 | /* Write packet size. */ | |
719 | stream_putw_at (s, 0, stream_get_endp (s)); | |
720 | ||
ccf3557b | 721 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
722 | ||
723 | return 0; | |
718e3744 | 724 | } |
725 | ||
726f9b2b | 726 | #if 0 |
727 | #warning oldies | |
718e3744 | 728 | int |
729 | zsend_ipv6_delete (struct zserv *client, int type, int flags, | |
730 | struct prefix_ipv6 *p, struct in6_addr *nexthop, | |
731 | unsigned int ifindex) | |
732 | { | |
733 | int psize; | |
734 | struct stream *s; | |
735 | ||
736 | s = client->obuf; | |
737 | stream_reset (s); | |
738 | ||
739 | /* Place holder for size. */ | |
740 | stream_putw (s, 0); | |
741 | ||
742 | /* Put command, type and nexthop. */ | |
743 | stream_putc (s, ZEBRA_IPV6_ROUTE_DELETE); | |
744 | stream_putc (s, type); | |
745 | stream_putc (s, flags); | |
746 | stream_putc (s, ZAPI_MESSAGE_NEXTHOP|ZAPI_MESSAGE_IFINDEX); | |
747 | ||
748 | /* Prefix. */ | |
749 | psize = PSIZE (p->prefixlen); | |
750 | stream_putc (s, p->prefixlen); | |
751 | stream_write (s, (u_char *)&p->prefix, psize); | |
752 | ||
753 | /* Nexthop */ | |
754 | stream_putc (s, 1); | |
755 | stream_write (s, (u_char *)nexthop, 16); | |
756 | ||
757 | /* Interface index. */ | |
758 | stream_putc (s, 1); | |
759 | stream_putl (s, ifindex); | |
760 | ||
761 | /* Write packet size. */ | |
762 | stream_putw_at (s, 0, stream_get_endp (s)); | |
763 | ||
ccf3557b | 764 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
765 | ||
766 | return 0; | |
718e3744 | 767 | } |
726f9b2b | 768 | #endif /* oldies */ |
718e3744 | 769 | |
770 | int | |
771 | zsend_ipv6_delete_multipath (struct zserv *client, struct prefix *p, | |
772 | struct rib *rib) | |
773 | { | |
774 | int psize; | |
775 | struct stream *s; | |
776 | struct nexthop *nexthop; | |
777 | struct in6_addr empty; | |
778 | ||
779 | memset (&empty, 0, sizeof (struct in6_addr)); | |
780 | s = client->obuf; | |
781 | stream_reset (s); | |
782 | ||
783 | /* Place holder for size. */ | |
784 | stream_putw (s, 0); | |
785 | ||
786 | /* Put command, type and nexthop. */ | |
787 | stream_putc (s, ZEBRA_IPV6_ROUTE_DELETE); | |
788 | stream_putc (s, rib->type); | |
789 | stream_putc (s, rib->flags); | |
790 | stream_putc (s, ZAPI_MESSAGE_NEXTHOP|ZAPI_MESSAGE_IFINDEX); | |
791 | ||
792 | /* Prefix. */ | |
793 | psize = PSIZE (p->prefixlen); | |
794 | stream_putc (s, p->prefixlen); | |
795 | stream_write (s, (u_char *)&p->u.prefix, psize); | |
796 | ||
797 | /* Nexthop */ | |
798 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
799 | { | |
800 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
801 | { | |
802 | stream_putc (s, 1); | |
803 | ||
804 | if (nexthop->type == NEXTHOP_TYPE_IPV6) | |
805 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); | |
806 | else | |
807 | stream_write (s, (u_char *) &empty, 16); | |
808 | ||
809 | /* Interface index. */ | |
810 | stream_putc (s, 1); | |
811 | stream_putl (s, nexthop->ifindex); | |
812 | ||
813 | break; | |
814 | } | |
815 | } | |
816 | ||
817 | /* Write packet size. */ | |
818 | stream_putw_at (s, 0, stream_get_endp (s)); | |
819 | ||
ccf3557b | 820 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
821 | ||
822 | return 0; | |
718e3744 | 823 | } |
824 | ||
825 | int | |
826 | zsend_ipv6_nexthop_lookup (struct zserv *client, struct in6_addr *addr) | |
827 | { | |
828 | struct stream *s; | |
829 | struct rib *rib; | |
830 | unsigned long nump; | |
831 | u_char num; | |
832 | struct nexthop *nexthop; | |
833 | ||
834 | /* Lookup nexthop. */ | |
835 | rib = rib_match_ipv6 (addr); | |
836 | ||
837 | /* Get output stream. */ | |
838 | s = client->obuf; | |
839 | stream_reset (s); | |
840 | ||
841 | /* Fill in result. */ | |
842 | stream_putw (s, 0); | |
843 | stream_putc (s, ZEBRA_IPV6_NEXTHOP_LOOKUP); | |
844 | stream_put (s, &addr, 16); | |
845 | ||
846 | if (rib) | |
847 | { | |
848 | stream_putl (s, rib->metric); | |
849 | num = 0; | |
850 | nump = s->putp; | |
851 | stream_putc (s, 0); | |
852 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
853 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
854 | { | |
855 | stream_putc (s, nexthop->type); | |
856 | switch (nexthop->type) | |
857 | { | |
858 | case ZEBRA_NEXTHOP_IPV6: | |
859 | stream_put (s, &nexthop->gate.ipv6, 16); | |
860 | break; | |
861 | case ZEBRA_NEXTHOP_IPV6_IFINDEX: | |
862 | case ZEBRA_NEXTHOP_IPV6_IFNAME: | |
863 | stream_put (s, &nexthop->gate.ipv6, 16); | |
864 | stream_putl (s, nexthop->ifindex); | |
865 | break; | |
866 | case ZEBRA_NEXTHOP_IFINDEX: | |
867 | case ZEBRA_NEXTHOP_IFNAME: | |
868 | stream_putl (s, nexthop->ifindex); | |
869 | break; | |
870 | } | |
871 | num++; | |
872 | } | |
873 | stream_putc_at (s, nump, num); | |
874 | } | |
875 | else | |
876 | { | |
877 | stream_putl (s, 0); | |
878 | stream_putc (s, 0); | |
879 | } | |
880 | ||
881 | stream_putw_at (s, 0, stream_get_endp (s)); | |
882 | ||
ccf3557b | 883 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
884 | ||
885 | return 0; | |
718e3744 | 886 | } |
887 | #endif /* HAVE_IPV6 */ | |
888 | ||
889 | int | |
890 | zsend_ipv4_nexthop_lookup (struct zserv *client, struct in_addr addr) | |
891 | { | |
892 | struct stream *s; | |
893 | struct rib *rib; | |
894 | unsigned long nump; | |
895 | u_char num; | |
896 | struct nexthop *nexthop; | |
897 | ||
898 | /* Lookup nexthop. */ | |
899 | rib = rib_match_ipv4 (addr); | |
900 | ||
901 | /* Get output stream. */ | |
902 | s = client->obuf; | |
903 | stream_reset (s); | |
904 | ||
905 | /* Fill in result. */ | |
906 | stream_putw (s, 0); | |
907 | stream_putc (s, ZEBRA_IPV4_NEXTHOP_LOOKUP); | |
908 | stream_put_in_addr (s, &addr); | |
909 | ||
910 | if (rib) | |
911 | { | |
912 | stream_putl (s, rib->metric); | |
913 | num = 0; | |
914 | nump = s->putp; | |
915 | stream_putc (s, 0); | |
916 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
917 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
918 | { | |
919 | stream_putc (s, nexthop->type); | |
920 | switch (nexthop->type) | |
921 | { | |
922 | case ZEBRA_NEXTHOP_IPV4: | |
923 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
924 | break; | |
925 | case ZEBRA_NEXTHOP_IFINDEX: | |
926 | case ZEBRA_NEXTHOP_IFNAME: | |
927 | stream_putl (s, nexthop->ifindex); | |
928 | break; | |
929 | } | |
930 | num++; | |
931 | } | |
932 | stream_putc_at (s, nump, num); | |
933 | } | |
934 | else | |
935 | { | |
936 | stream_putl (s, 0); | |
937 | stream_putc (s, 0); | |
938 | } | |
939 | ||
940 | stream_putw_at (s, 0, stream_get_endp (s)); | |
941 | ||
ccf3557b | 942 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
943 | ||
944 | return 0; | |
718e3744 | 945 | } |
946 | ||
947 | int | |
948 | zsend_ipv4_import_lookup (struct zserv *client, struct prefix_ipv4 *p) | |
949 | { | |
950 | struct stream *s; | |
951 | struct rib *rib; | |
952 | unsigned long nump; | |
953 | u_char num; | |
954 | struct nexthop *nexthop; | |
955 | ||
956 | /* Lookup nexthop. */ | |
957 | rib = rib_lookup_ipv4 (p); | |
958 | ||
959 | /* Get output stream. */ | |
960 | s = client->obuf; | |
961 | stream_reset (s); | |
962 | ||
963 | /* Fill in result. */ | |
964 | stream_putw (s, 0); | |
965 | stream_putc (s, ZEBRA_IPV4_IMPORT_LOOKUP); | |
966 | stream_put_in_addr (s, &p->prefix); | |
967 | ||
968 | if (rib) | |
969 | { | |
970 | stream_putl (s, rib->metric); | |
971 | num = 0; | |
972 | nump = s->putp; | |
973 | stream_putc (s, 0); | |
974 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
975 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
976 | { | |
977 | stream_putc (s, nexthop->type); | |
978 | switch (nexthop->type) | |
979 | { | |
980 | case ZEBRA_NEXTHOP_IPV4: | |
981 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
982 | break; | |
983 | case ZEBRA_NEXTHOP_IFINDEX: | |
984 | case ZEBRA_NEXTHOP_IFNAME: | |
985 | stream_putl (s, nexthop->ifindex); | |
986 | break; | |
987 | } | |
988 | num++; | |
989 | } | |
990 | stream_putc_at (s, nump, num); | |
991 | } | |
992 | else | |
993 | { | |
994 | stream_putl (s, 0); | |
995 | stream_putc (s, 0); | |
996 | } | |
997 | ||
998 | stream_putw_at (s, 0, stream_get_endp (s)); | |
999 | ||
ccf3557b | 1000 | zebra_server_send_message (client->sock, s->data, stream_get_endp (s)); |
1001 | ||
1002 | return 0; | |
718e3744 | 1003 | } |
1004 | \f | |
1005 | /* Register zebra server interface information. Send current all | |
1006 | interface and address information. */ | |
1007 | void | |
1008 | zread_interface_add (struct zserv *client, u_short length) | |
1009 | { | |
1010 | listnode ifnode; | |
1011 | listnode cnode; | |
1012 | struct interface *ifp; | |
1013 | struct connected *c; | |
1014 | ||
1015 | /* Interface information is needed. */ | |
1016 | client->ifinfo = 1; | |
1017 | ||
1018 | for (ifnode = listhead (iflist); ifnode; ifnode = nextnode (ifnode)) | |
1019 | { | |
1020 | ifp = getdata (ifnode); | |
1021 | ||
1022 | /* Skip pseudo interface. */ | |
1023 | if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1024 | continue; | |
1025 | ||
1026 | zsend_interface_add (client, ifp); | |
1027 | ||
1028 | for (cnode = listhead (ifp->connected); cnode; nextnode (cnode)) | |
1029 | { | |
1030 | c = getdata (cnode); | |
1031 | if (CHECK_FLAG (c->conf, ZEBRA_IFC_REAL)) | |
1032 | zsend_interface_address_add (client, ifp, c); | |
1033 | } | |
1034 | } | |
1035 | } | |
1036 | ||
1037 | /* Unregister zebra server interface information. */ | |
1038 | void | |
1039 | zread_interface_delete (struct zserv *client, u_short length) | |
1040 | { | |
1041 | client->ifinfo = 0; | |
1042 | } | |
1043 | ||
1044 | /* This function support multiple nexthop. */ | |
1045 | void | |
1046 | zread_ipv4_add (struct zserv *client, u_short length) | |
1047 | { | |
1048 | int i; | |
1049 | struct rib *rib; | |
1050 | struct prefix_ipv4 p; | |
1051 | u_char message; | |
1052 | struct in_addr nexthop; | |
1053 | u_char nexthop_num; | |
1054 | u_char nexthop_type; | |
1055 | struct stream *s; | |
1056 | unsigned int ifindex; | |
1057 | u_char ifname_len; | |
1058 | ||
1059 | /* Get input stream. */ | |
1060 | s = client->ibuf; | |
1061 | ||
1062 | /* Allocate new rib. */ | |
1063 | rib = XMALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1064 | memset (rib, 0, sizeof (struct rib)); | |
1065 | ||
1066 | /* Type, flags, message. */ | |
1067 | rib->type = stream_getc (s); | |
1068 | rib->flags = stream_getc (s); | |
1069 | message = stream_getc (s); | |
1070 | rib->uptime = time (NULL); | |
1071 | ||
1072 | /* IPv4 prefix. */ | |
1073 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1074 | p.family = AF_INET; | |
1075 | p.prefixlen = stream_getc (s); | |
1076 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1077 | ||
1078 | /* Nexthop parse. */ | |
1079 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1080 | { | |
1081 | nexthop_num = stream_getc (s); | |
1082 | ||
1083 | for (i = 0; i < nexthop_num; i++) | |
1084 | { | |
1085 | nexthop_type = stream_getc (s); | |
1086 | ||
1087 | switch (nexthop_type) | |
1088 | { | |
1089 | case ZEBRA_NEXTHOP_IFINDEX: | |
1090 | ifindex = stream_getl (s); | |
1091 | nexthop_ifindex_add (rib, ifindex); | |
1092 | break; | |
1093 | case ZEBRA_NEXTHOP_IFNAME: | |
1094 | ifname_len = stream_getc (s); | |
1095 | stream_forward (s, ifname_len); | |
1096 | break; | |
1097 | case ZEBRA_NEXTHOP_IPV4: | |
1098 | nexthop.s_addr = stream_get_ipv4 (s); | |
1099 | nexthop_ipv4_add (rib, &nexthop); | |
1100 | break; | |
1101 | case ZEBRA_NEXTHOP_IPV6: | |
1102 | stream_forward (s, IPV6_MAX_BYTELEN); | |
1103 | break; | |
595db7f1 | 1104 | case ZEBRA_NEXTHOP_BLACKHOLE: |
1105 | nexthop_blackhole_add (rib); | |
1106 | break; | |
718e3744 | 1107 | } |
1108 | } | |
1109 | } | |
1110 | ||
1111 | /* Distance. */ | |
1112 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1113 | rib->distance = stream_getc (s); | |
1114 | ||
1115 | /* Metric. */ | |
1116 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1117 | rib->metric = stream_getl (s); | |
1118 | ||
1119 | rib_add_ipv4_multipath (&p, rib); | |
1120 | } | |
1121 | ||
1122 | /* Zebra server IPv4 prefix delete function. */ | |
1123 | void | |
1124 | zread_ipv4_delete (struct zserv *client, u_short length) | |
1125 | { | |
1126 | int i; | |
1127 | struct stream *s; | |
1128 | struct zapi_ipv4 api; | |
1129 | struct in_addr nexthop; | |
1130 | unsigned long ifindex; | |
1131 | struct prefix_ipv4 p; | |
1132 | u_char nexthop_num; | |
1133 | u_char nexthop_type; | |
1134 | u_char ifname_len; | |
1135 | ||
1136 | s = client->ibuf; | |
1137 | ifindex = 0; | |
1138 | nexthop.s_addr = 0; | |
1139 | ||
1140 | /* Type, flags, message. */ | |
1141 | api.type = stream_getc (s); | |
1142 | api.flags = stream_getc (s); | |
1143 | api.message = stream_getc (s); | |
1144 | ||
1145 | /* IPv4 prefix. */ | |
1146 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1147 | p.family = AF_INET; | |
1148 | p.prefixlen = stream_getc (s); | |
1149 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1150 | ||
1151 | /* Nexthop, ifindex, distance, metric. */ | |
1152 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1153 | { | |
1154 | nexthop_num = stream_getc (s); | |
1155 | ||
1156 | for (i = 0; i < nexthop_num; i++) | |
1157 | { | |
1158 | nexthop_type = stream_getc (s); | |
1159 | ||
1160 | switch (nexthop_type) | |
1161 | { | |
1162 | case ZEBRA_NEXTHOP_IFINDEX: | |
1163 | ifindex = stream_getl (s); | |
1164 | break; | |
1165 | case ZEBRA_NEXTHOP_IFNAME: | |
1166 | ifname_len = stream_getc (s); | |
1167 | stream_forward (s, ifname_len); | |
1168 | break; | |
1169 | case ZEBRA_NEXTHOP_IPV4: | |
1170 | nexthop.s_addr = stream_get_ipv4 (s); | |
1171 | break; | |
1172 | case ZEBRA_NEXTHOP_IPV6: | |
1173 | stream_forward (s, IPV6_MAX_BYTELEN); | |
1174 | break; | |
1175 | } | |
1176 | } | |
1177 | } | |
1178 | ||
1179 | /* Distance. */ | |
1180 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1181 | api.distance = stream_getc (s); | |
1182 | else | |
1183 | api.distance = 0; | |
1184 | ||
1185 | /* Metric. */ | |
1186 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1187 | api.metric = stream_getl (s); | |
1188 | else | |
1189 | api.metric = 0; | |
1190 | ||
1191 | rib_delete_ipv4 (api.type, api.flags, &p, &nexthop, ifindex, | |
1192 | client->rtm_table); | |
1193 | } | |
1194 | ||
1195 | /* Nexthop lookup for IPv4. */ | |
1196 | void | |
1197 | zread_ipv4_nexthop_lookup (struct zserv *client, u_short length) | |
1198 | { | |
1199 | struct in_addr addr; | |
1200 | ||
1201 | addr.s_addr = stream_get_ipv4 (client->ibuf); | |
1202 | zsend_ipv4_nexthop_lookup (client, addr); | |
1203 | } | |
1204 | ||
1205 | /* Nexthop lookup for IPv4. */ | |
1206 | void | |
1207 | zread_ipv4_import_lookup (struct zserv *client, u_short length) | |
1208 | { | |
1209 | struct prefix_ipv4 p; | |
1210 | ||
1211 | p.family = AF_INET; | |
1212 | p.prefixlen = stream_getc (client->ibuf); | |
1213 | p.prefix.s_addr = stream_get_ipv4 (client->ibuf); | |
1214 | ||
1215 | zsend_ipv4_import_lookup (client, &p); | |
1216 | } | |
1217 | ||
1218 | #ifdef HAVE_IPV6 | |
1219 | /* Zebra server IPv6 prefix add function. */ | |
1220 | void | |
1221 | zread_ipv6_add (struct zserv *client, u_short length) | |
1222 | { | |
1223 | int i; | |
1224 | struct stream *s; | |
1225 | struct zapi_ipv6 api; | |
1226 | struct in6_addr nexthop; | |
1227 | unsigned long ifindex; | |
1228 | struct prefix_ipv6 p; | |
1229 | ||
1230 | s = client->ibuf; | |
1231 | ifindex = 0; | |
1232 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1233 | ||
1234 | /* Type, flags, message. */ | |
1235 | api.type = stream_getc (s); | |
1236 | api.flags = stream_getc (s); | |
1237 | api.message = stream_getc (s); | |
1238 | ||
1239 | /* IPv4 prefix. */ | |
1240 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1241 | p.family = AF_INET6; | |
1242 | p.prefixlen = stream_getc (s); | |
1243 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1244 | ||
1245 | /* Nexthop, ifindex, distance, metric. */ | |
1246 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1247 | { | |
1248 | u_char nexthop_type; | |
1249 | ||
1250 | api.nexthop_num = stream_getc (s); | |
1251 | for (i = 0; i < api.nexthop_num; i++) | |
1252 | { | |
1253 | nexthop_type = stream_getc (s); | |
1254 | ||
1255 | switch (nexthop_type) | |
1256 | { | |
1257 | case ZEBRA_NEXTHOP_IPV6: | |
1258 | stream_get (&nexthop, s, 16); | |
1259 | break; | |
1260 | case ZEBRA_NEXTHOP_IFINDEX: | |
1261 | ifindex = stream_getl (s); | |
1262 | break; | |
1263 | } | |
1264 | } | |
1265 | } | |
1266 | ||
1267 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1268 | api.distance = stream_getc (s); | |
1269 | else | |
1270 | api.distance = 0; | |
1271 | ||
1272 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1273 | api.metric = stream_getl (s); | |
1274 | else | |
1275 | api.metric = 0; | |
1276 | ||
1277 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) | |
1278 | rib_add_ipv6 (api.type, api.flags, &p, NULL, ifindex, 0); | |
1279 | else | |
1280 | rib_add_ipv6 (api.type, api.flags, &p, &nexthop, ifindex, 0); | |
1281 | } | |
1282 | ||
1283 | /* Zebra server IPv6 prefix delete function. */ | |
1284 | void | |
1285 | zread_ipv6_delete (struct zserv *client, u_short length) | |
1286 | { | |
1287 | int i; | |
1288 | struct stream *s; | |
1289 | struct zapi_ipv6 api; | |
1290 | struct in6_addr nexthop; | |
1291 | unsigned long ifindex; | |
1292 | struct prefix_ipv6 p; | |
1293 | ||
1294 | s = client->ibuf; | |
1295 | ifindex = 0; | |
1296 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1297 | ||
1298 | /* Type, flags, message. */ | |
1299 | api.type = stream_getc (s); | |
1300 | api.flags = stream_getc (s); | |
1301 | api.message = stream_getc (s); | |
1302 | ||
1303 | /* IPv4 prefix. */ | |
1304 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1305 | p.family = AF_INET6; | |
1306 | p.prefixlen = stream_getc (s); | |
1307 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1308 | ||
1309 | /* Nexthop, ifindex, distance, metric. */ | |
1310 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1311 | { | |
1312 | u_char nexthop_type; | |
1313 | ||
1314 | api.nexthop_num = stream_getc (s); | |
1315 | for (i = 0; i < api.nexthop_num; i++) | |
1316 | { | |
1317 | nexthop_type = stream_getc (s); | |
1318 | ||
1319 | switch (nexthop_type) | |
1320 | { | |
1321 | case ZEBRA_NEXTHOP_IPV6: | |
1322 | stream_get (&nexthop, s, 16); | |
1323 | break; | |
1324 | case ZEBRA_NEXTHOP_IFINDEX: | |
1325 | ifindex = stream_getl (s); | |
1326 | break; | |
1327 | } | |
1328 | } | |
1329 | } | |
1330 | ||
1331 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1332 | api.distance = stream_getc (s); | |
1333 | else | |
1334 | api.distance = 0; | |
1335 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1336 | api.metric = stream_getl (s); | |
1337 | else | |
1338 | api.metric = 0; | |
1339 | ||
1340 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) | |
1341 | rib_delete_ipv6 (api.type, api.flags, &p, NULL, ifindex, 0); | |
1342 | else | |
1343 | rib_delete_ipv6 (api.type, api.flags, &p, &nexthop, ifindex, 0); | |
1344 | } | |
1345 | ||
1346 | void | |
1347 | zebra_read_ipv6 (int command, struct zserv *client, u_short length) | |
1348 | { | |
1349 | u_char type; | |
1350 | u_char flags; | |
1351 | struct in6_addr nexthop, *gate; | |
1352 | u_char *lim; | |
1353 | u_char *pnt; | |
1354 | unsigned int ifindex; | |
1355 | ||
1356 | pnt = stream_pnt (client->ibuf); | |
1357 | lim = pnt + length; | |
1358 | ||
1359 | type = stream_getc (client->ibuf); | |
1360 | flags = stream_getc (client->ibuf); | |
1361 | stream_get (&nexthop, client->ibuf, sizeof (struct in6_addr)); | |
1362 | ||
1363 | while (stream_pnt (client->ibuf) < lim) | |
1364 | { | |
1365 | int size; | |
1366 | struct prefix_ipv6 p; | |
1367 | ||
1368 | ifindex = stream_getl (client->ibuf); | |
1369 | ||
1370 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1371 | p.family = AF_INET6; | |
1372 | p.prefixlen = stream_getc (client->ibuf); | |
1373 | size = PSIZE(p.prefixlen); | |
1374 | stream_get (&p.prefix, client->ibuf, size); | |
1375 | ||
1376 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) | |
1377 | gate = NULL; | |
1378 | else | |
1379 | gate = &nexthop; | |
1380 | ||
1381 | if (command == ZEBRA_IPV6_ROUTE_ADD) | |
1382 | rib_add_ipv6 (type, flags, &p, gate, ifindex, 0); | |
1383 | else | |
1384 | rib_delete_ipv6 (type, flags, &p, gate, ifindex, 0); | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | void | |
1389 | zread_ipv6_nexthop_lookup (struct zserv *client, u_short length) | |
1390 | { | |
1391 | struct in6_addr addr; | |
1392 | char buf[BUFSIZ]; | |
1393 | ||
1394 | stream_get (&addr, client->ibuf, 16); | |
1395 | printf ("DEBUG %s\n", inet_ntop (AF_INET6, &addr, buf, BUFSIZ)); | |
1396 | ||
1397 | zsend_ipv6_nexthop_lookup (client, &addr); | |
1398 | } | |
1399 | #endif /* HAVE_IPV6 */ | |
1400 | ||
1401 | /* Close zebra client. */ | |
1402 | void | |
1403 | zebra_client_close (struct zserv *client) | |
1404 | { | |
1405 | /* Close file descriptor. */ | |
1406 | if (client->sock) | |
1407 | { | |
1408 | close (client->sock); | |
1409 | client->sock = -1; | |
1410 | } | |
1411 | ||
1412 | /* Free stream buffers. */ | |
1413 | if (client->ibuf) | |
1414 | stream_free (client->ibuf); | |
1415 | if (client->obuf) | |
1416 | stream_free (client->obuf); | |
1417 | ||
1418 | /* Release threads. */ | |
1419 | if (client->t_read) | |
1420 | thread_cancel (client->t_read); | |
1421 | if (client->t_write) | |
1422 | thread_cancel (client->t_write); | |
1423 | ||
1424 | /* Free client structure. */ | |
1425 | listnode_delete (client_list, client); | |
1426 | XFREE (0, client); | |
1427 | } | |
1428 | ||
1429 | /* Make new client. */ | |
1430 | void | |
1431 | zebra_client_create (int sock) | |
1432 | { | |
1433 | struct zserv *client; | |
1434 | ||
1435 | client = XCALLOC (0, sizeof (struct zserv)); | |
1436 | ||
1437 | /* Make client input/output buffer. */ | |
1438 | client->sock = sock; | |
1439 | client->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
1440 | client->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
1441 | ||
1442 | /* Set table number. */ | |
1443 | client->rtm_table = rtm_table_default; | |
1444 | ||
1445 | /* Add this client to linked list. */ | |
1446 | listnode_add (client_list, client); | |
1447 | ||
1448 | /* Make new read thread. */ | |
1449 | zebra_event (ZEBRA_READ, sock, client); | |
1450 | } | |
1451 | ||
1452 | /* Handler of zebra service request. */ | |
1453 | int | |
1454 | zebra_client_read (struct thread *thread) | |
1455 | { | |
1456 | int sock; | |
1457 | struct zserv *client; | |
1458 | int nbyte; | |
1459 | u_short length; | |
1460 | u_char command; | |
1461 | ||
1462 | /* Get thread data. Reset reading thread because I'm running. */ | |
1463 | sock = THREAD_FD (thread); | |
1464 | client = THREAD_ARG (thread); | |
1465 | client->t_read = NULL; | |
1466 | ||
1467 | /* Read length and command. */ | |
1468 | nbyte = stream_read (client->ibuf, sock, 3); | |
1469 | if (nbyte <= 0) | |
1470 | { | |
1471 | if (IS_ZEBRA_DEBUG_EVENT) | |
1472 | zlog_info ("connection closed socket [%d]", sock); | |
1473 | zebra_client_close (client); | |
1474 | return -1; | |
1475 | } | |
1476 | length = stream_getw (client->ibuf); | |
1477 | command = stream_getc (client->ibuf); | |
1478 | ||
1479 | if (length < 3) | |
1480 | { | |
1481 | if (IS_ZEBRA_DEBUG_EVENT) | |
1482 | zlog_info ("length %d is less than 3 ", length); | |
1483 | zebra_client_close (client); | |
1484 | return -1; | |
1485 | } | |
1486 | ||
1487 | length -= 3; | |
1488 | ||
1489 | /* Read rest of data. */ | |
1490 | if (length) | |
1491 | { | |
1492 | nbyte = stream_read (client->ibuf, sock, length); | |
1493 | if (nbyte <= 0) | |
1494 | { | |
1495 | if (IS_ZEBRA_DEBUG_EVENT) | |
1496 | zlog_info ("connection closed [%d] when reading zebra data", sock); | |
1497 | zebra_client_close (client); | |
1498 | return -1; | |
1499 | } | |
1500 | } | |
1501 | ||
1502 | /* Debug packet information. */ | |
1503 | if (IS_ZEBRA_DEBUG_EVENT) | |
1504 | zlog_info ("zebra message comes from socket [%d]", sock); | |
1505 | ||
1506 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
1507 | zlog_info ("zebra message received [%s] %d", | |
1508 | zebra_command_str[command], length); | |
1509 | ||
1510 | switch (command) | |
1511 | { | |
1512 | case ZEBRA_INTERFACE_ADD: | |
1513 | zread_interface_add (client, length); | |
1514 | break; | |
1515 | case ZEBRA_INTERFACE_DELETE: | |
1516 | zread_interface_delete (client, length); | |
1517 | break; | |
1518 | case ZEBRA_IPV4_ROUTE_ADD: | |
1519 | zread_ipv4_add (client, length); | |
1520 | break; | |
1521 | case ZEBRA_IPV4_ROUTE_DELETE: | |
1522 | zread_ipv4_delete (client, length); | |
1523 | break; | |
1524 | #ifdef HAVE_IPV6 | |
1525 | case ZEBRA_IPV6_ROUTE_ADD: | |
1526 | zread_ipv6_add (client, length); | |
1527 | break; | |
1528 | case ZEBRA_IPV6_ROUTE_DELETE: | |
1529 | zread_ipv6_delete (client, length); | |
1530 | break; | |
1531 | #endif /* HAVE_IPV6 */ | |
1532 | case ZEBRA_REDISTRIBUTE_ADD: | |
1533 | zebra_redistribute_add (command, client, length); | |
1534 | break; | |
1535 | case ZEBRA_REDISTRIBUTE_DELETE: | |
1536 | zebra_redistribute_delete (command, client, length); | |
1537 | break; | |
1538 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
1539 | zebra_redistribute_default_add (command, client, length); | |
1540 | break; | |
1541 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
1542 | zebra_redistribute_default_delete (command, client, length); | |
1543 | break; | |
1544 | case ZEBRA_IPV4_NEXTHOP_LOOKUP: | |
1545 | zread_ipv4_nexthop_lookup (client, length); | |
1546 | break; | |
1547 | #ifdef HAVE_IPV6 | |
1548 | case ZEBRA_IPV6_NEXTHOP_LOOKUP: | |
1549 | zread_ipv6_nexthop_lookup (client, length); | |
1550 | break; | |
1551 | #endif /* HAVE_IPV6 */ | |
1552 | case ZEBRA_IPV4_IMPORT_LOOKUP: | |
1553 | zread_ipv4_import_lookup (client, length); | |
1554 | break; | |
1555 | default: | |
1556 | zlog_info ("Zebra received unknown command %d", command); | |
1557 | break; | |
1558 | } | |
1559 | ||
1560 | stream_reset (client->ibuf); | |
1561 | zebra_event (ZEBRA_READ, sock, client); | |
1562 | ||
1563 | return 0; | |
1564 | } | |
1565 | ||
1566 | /* Write output buffer to the socket. */ | |
1567 | void | |
1568 | zebra_write (struct thread *thread) | |
1569 | { | |
1570 | int sock; | |
1571 | struct zserv *client; | |
1572 | ||
1573 | /* Thread treatment. */ | |
1574 | sock = THREAD_FD (thread); | |
1575 | client = THREAD_ARG (thread); | |
1576 | client->t_write = NULL; | |
1577 | ||
1578 | stream_flush (client->obuf, sock); | |
1579 | } | |
1580 | ||
1581 | /* Accept code of zebra server socket. */ | |
1582 | int | |
1583 | zebra_accept (struct thread *thread) | |
1584 | { | |
ccf3557b | 1585 | int val; |
718e3744 | 1586 | int accept_sock; |
1587 | int client_sock; | |
1588 | struct sockaddr_in client; | |
1589 | socklen_t len; | |
1590 | ||
1591 | accept_sock = THREAD_FD (thread); | |
1592 | ||
1593 | len = sizeof (struct sockaddr_in); | |
1594 | client_sock = accept (accept_sock, (struct sockaddr *) &client, &len); | |
1595 | ||
1596 | if (client_sock < 0) | |
1597 | { | |
1598 | zlog_warn ("Can't accept zebra socket: %s", strerror (errno)); | |
1599 | return -1; | |
1600 | } | |
1601 | ||
ccf3557b | 1602 | /* Make client socket non-blocking. */ |
1603 | ||
1604 | val = fcntl (client_sock, F_GETFL, 0); | |
1605 | fcntl (client_sock, F_SETFL, (val | O_NONBLOCK)); | |
1606 | ||
718e3744 | 1607 | /* Create new zebra client. */ |
1608 | zebra_client_create (client_sock); | |
1609 | ||
1610 | /* Register myself. */ | |
1611 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1612 | ||
1613 | return 0; | |
1614 | } | |
1615 | ||
1616 | /* Make zebra's server socket. */ | |
1617 | void | |
1618 | zebra_serv () | |
1619 | { | |
1620 | int ret; | |
1621 | int accept_sock; | |
1622 | struct sockaddr_in addr; | |
1623 | ||
1624 | accept_sock = socket (AF_INET, SOCK_STREAM, 0); | |
1625 | ||
1626 | if (accept_sock < 0) | |
1627 | { | |
1628 | zlog_warn ("Can't bind to socket: %s", strerror (errno)); | |
1629 | zlog_warn ("zebra can't provice full functionality due to above error"); | |
1630 | return; | |
1631 | } | |
1632 | ||
1633 | memset (&addr, 0, sizeof (struct sockaddr_in)); | |
1634 | addr.sin_family = AF_INET; | |
1635 | addr.sin_port = htons (ZEBRA_PORT); | |
1636 | #ifdef HAVE_SIN_LEN | |
1637 | addr.sin_len = sizeof (struct sockaddr_in); | |
1638 | #endif /* HAVE_SIN_LEN */ | |
1639 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); | |
1640 | ||
1641 | sockopt_reuseaddr (accept_sock); | |
1642 | sockopt_reuseport (accept_sock); | |
1643 | ||
edd7c245 | 1644 | if ( zserv_privs.change(ZPRIVS_RAISE) ) |
1645 | zlog (NULL, LOG_ERR, "Can't raise privileges"); | |
1646 | ||
718e3744 | 1647 | ret = bind (accept_sock, (struct sockaddr *)&addr, |
1648 | sizeof (struct sockaddr_in)); | |
1649 | if (ret < 0) | |
1650 | { | |
1651 | zlog_warn ("Can't bind to socket: %s", strerror (errno)); | |
1652 | zlog_warn ("zebra can't provice full functionality due to above error"); | |
1653 | close (accept_sock); /* Avoid sd leak. */ | |
1654 | return; | |
1655 | } | |
edd7c245 | 1656 | |
1657 | if ( zserv_privs.change(ZPRIVS_LOWER) ) | |
1658 | zlog (NULL, LOG_ERR, "Can't lower privileges"); | |
718e3744 | 1659 | |
1660 | ret = listen (accept_sock, 1); | |
1661 | if (ret < 0) | |
1662 | { | |
1663 | zlog_warn ("Can't listen to socket: %s", strerror (errno)); | |
1664 | zlog_warn ("zebra can't provice full functionality due to above error"); | |
1665 | close (accept_sock); /* Avoid sd leak. */ | |
1666 | return; | |
1667 | } | |
1668 | ||
1669 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1670 | } | |
1671 | ||
1672 | /* For sockaddr_un. */ | |
1673 | #include <sys/un.h> | |
1674 | ||
1675 | /* zebra server UNIX domain socket. */ | |
1676 | void | |
1677 | zebra_serv_un (char *path) | |
1678 | { | |
1679 | int ret; | |
1680 | int sock, len; | |
1681 | struct sockaddr_un serv; | |
1682 | mode_t old_mask; | |
1683 | ||
1684 | /* First of all, unlink existing socket */ | |
1685 | unlink (path); | |
1686 | ||
1687 | /* Set umask */ | |
1688 | old_mask = umask (0077); | |
1689 | ||
1690 | /* Make UNIX domain socket. */ | |
1691 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
1692 | if (sock < 0) | |
1693 | { | |
1694 | perror ("sock"); | |
1695 | return; | |
1696 | } | |
1697 | ||
1698 | /* Make server socket. */ | |
1699 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
1700 | serv.sun_family = AF_UNIX; | |
1701 | strncpy (serv.sun_path, path, strlen (path)); | |
1702 | #ifdef HAVE_SUN_LEN | |
1703 | len = serv.sun_len = SUN_LEN(&serv); | |
1704 | #else | |
1705 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
1706 | #endif /* HAVE_SUN_LEN */ | |
1707 | ||
1708 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
1709 | if (ret < 0) | |
1710 | { | |
1711 | perror ("bind"); | |
1712 | close (sock); | |
1713 | return; | |
1714 | } | |
1715 | ||
1716 | ret = listen (sock, 5); | |
1717 | if (ret < 0) | |
1718 | { | |
1719 | perror ("listen"); | |
1720 | close (sock); | |
1721 | return; | |
1722 | } | |
1723 | ||
1724 | umask (old_mask); | |
1725 | ||
1726 | zebra_event (ZEBRA_SERV, sock, NULL); | |
1727 | } | |
1728 | \f | |
1729 | /* Zebra's event management function. */ | |
1730 | extern struct thread_master *master; | |
1731 | ||
1732 | void | |
1733 | zebra_event (enum event event, int sock, struct zserv *client) | |
1734 | { | |
1735 | switch (event) | |
1736 | { | |
1737 | case ZEBRA_SERV: | |
1738 | thread_add_read (master, zebra_accept, client, sock); | |
1739 | break; | |
1740 | case ZEBRA_READ: | |
1741 | client->t_read = | |
1742 | thread_add_read (master, zebra_client_read, client, sock); | |
1743 | break; | |
1744 | case ZEBRA_WRITE: | |
1745 | /**/ | |
1746 | break; | |
1747 | } | |
1748 | } | |
1749 | \f | |
1750 | /* Display default rtm_table for all clients. */ | |
1751 | DEFUN (show_table, | |
1752 | show_table_cmd, | |
1753 | "show table", | |
1754 | SHOW_STR | |
1755 | "default routing table to use for all clients\n") | |
1756 | { | |
1757 | vty_out (vty, "table %d%s", rtm_table_default, | |
1758 | VTY_NEWLINE); | |
1759 | return CMD_SUCCESS; | |
1760 | } | |
1761 | ||
1762 | DEFUN (config_table, | |
1763 | config_table_cmd, | |
1764 | "table TABLENO", | |
1765 | "Configure target kernel routing table\n" | |
1766 | "TABLE integer\n") | |
1767 | { | |
1768 | rtm_table_default = strtol (argv[0], (char**)0, 10); | |
1769 | return CMD_SUCCESS; | |
1770 | } | |
1771 | ||
647e4f1f | 1772 | DEFUN (ip_forwarding, |
1773 | ip_forwarding_cmd, | |
1774 | "ip forwarding", | |
1775 | IP_STR | |
1776 | "Turn on IP forwarding") | |
1777 | { | |
1778 | int ret; | |
1779 | ||
1780 | ret = ipforward (); | |
1781 | ||
1782 | if (ret != 0) | |
1783 | { | |
1784 | vty_out (vty, "IP forwarding is already on%s", VTY_NEWLINE); | |
1785 | return CMD_ERR_NOTHING_TODO; | |
1786 | } | |
1787 | ||
1788 | ret = ipforward_on (); | |
1789 | if (ret == 0) | |
1790 | { | |
1791 | vty_out (vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
1792 | return CMD_WARNING; | |
1793 | } | |
1794 | ||
1795 | return CMD_SUCCESS; | |
1796 | } | |
1797 | ||
718e3744 | 1798 | DEFUN (no_ip_forwarding, |
1799 | no_ip_forwarding_cmd, | |
1800 | "no ip forwarding", | |
1801 | NO_STR | |
1802 | IP_STR | |
1803 | "Turn off IP forwarding") | |
1804 | { | |
1805 | int ret; | |
1806 | ||
1807 | ret = ipforward (); | |
1808 | ||
1809 | if (ret == 0) | |
1810 | { | |
1811 | vty_out (vty, "IP forwarding is already off%s", VTY_NEWLINE); | |
1812 | return CMD_ERR_NOTHING_TODO; | |
1813 | } | |
1814 | ||
1815 | ret = ipforward_off (); | |
1816 | if (ret != 0) | |
1817 | { | |
1818 | vty_out (vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
1819 | return CMD_WARNING; | |
1820 | } | |
1821 | ||
1822 | return CMD_SUCCESS; | |
1823 | } | |
1824 | ||
1825 | /* This command is for debugging purpose. */ | |
1826 | DEFUN (show_zebra_client, | |
1827 | show_zebra_client_cmd, | |
1828 | "show zebra client", | |
1829 | SHOW_STR | |
1830 | "Zebra information" | |
1831 | "Client information") | |
1832 | { | |
1833 | listnode node; | |
1834 | struct zserv *client; | |
1835 | ||
1836 | for (node = listhead (client_list); node; nextnode (node)) | |
1837 | { | |
1838 | client = getdata (node); | |
1839 | vty_out (vty, "Client fd %d%s", client->sock, VTY_NEWLINE); | |
1840 | } | |
1841 | return CMD_SUCCESS; | |
1842 | } | |
1843 | ||
1844 | /* Table configuration write function. */ | |
1845 | int | |
1846 | config_write_table (struct vty *vty) | |
1847 | { | |
1848 | if (rtm_table_default) | |
1849 | vty_out (vty, "table %d%s", rtm_table_default, | |
1850 | VTY_NEWLINE); | |
1851 | return 0; | |
1852 | } | |
1853 | ||
1854 | /* table node for routing tables. */ | |
1855 | struct cmd_node table_node = | |
1856 | { | |
1857 | TABLE_NODE, | |
1858 | "", /* This node has no interface. */ | |
1859 | 1 | |
1860 | }; | |
1861 | \f | |
1862 | /* Only display ip forwarding is enabled or not. */ | |
1863 | DEFUN (show_ip_forwarding, | |
1864 | show_ip_forwarding_cmd, | |
1865 | "show ip forwarding", | |
1866 | SHOW_STR | |
1867 | IP_STR | |
1868 | "IP forwarding status\n") | |
1869 | { | |
1870 | int ret; | |
1871 | ||
1872 | ret = ipforward (); | |
1873 | ||
1874 | if (ret == 0) | |
1875 | vty_out (vty, "IP forwarding is off%s", VTY_NEWLINE); | |
1876 | else | |
1877 | vty_out (vty, "IP forwarding is on%s", VTY_NEWLINE); | |
1878 | return CMD_SUCCESS; | |
1879 | } | |
1880 | ||
1881 | #ifdef HAVE_IPV6 | |
1882 | /* Only display ipv6 forwarding is enabled or not. */ | |
1883 | DEFUN (show_ipv6_forwarding, | |
1884 | show_ipv6_forwarding_cmd, | |
1885 | "show ipv6 forwarding", | |
1886 | SHOW_STR | |
1887 | "IPv6 information\n" | |
1888 | "Forwarding status\n") | |
1889 | { | |
1890 | int ret; | |
1891 | ||
1892 | ret = ipforward_ipv6 (); | |
1893 | ||
1894 | switch (ret) | |
1895 | { | |
1896 | case -1: | |
1897 | vty_out (vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
1898 | break; | |
1899 | case 0: | |
1900 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
1901 | break; | |
1902 | case 1: | |
1903 | vty_out (vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
1904 | break; | |
1905 | default: | |
1906 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
1907 | break; | |
1908 | } | |
1909 | return CMD_SUCCESS; | |
1910 | } | |
1911 | ||
1912 | DEFUN (no_ipv6_forwarding, | |
1913 | no_ipv6_forwarding_cmd, | |
1914 | "no ipv6 forwarding", | |
1915 | NO_STR | |
1916 | IP_STR | |
1917 | "Doesn't forward IPv6 protocol packet") | |
1918 | { | |
1919 | int ret; | |
1920 | ||
1921 | ret = ipforward_ipv6_off (); | |
1922 | if (ret != 0) | |
1923 | { | |
1924 | vty_out (vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
1925 | return CMD_WARNING; | |
1926 | } | |
1927 | ||
1928 | return CMD_SUCCESS; | |
1929 | } | |
1930 | ||
1931 | #endif /* HAVE_IPV6 */ | |
1932 | ||
1933 | /* IPForwarding configuration write function. */ | |
1934 | int | |
1935 | config_write_forwarding (struct vty *vty) | |
1936 | { | |
1937 | if (! ipforward ()) | |
1938 | vty_out (vty, "no ip forwarding%s", VTY_NEWLINE); | |
1939 | #ifdef HAVE_IPV6 | |
1940 | if (! ipforward_ipv6 ()) | |
1941 | vty_out (vty, "no ipv6 forwarding%s", VTY_NEWLINE); | |
1942 | #endif /* HAVE_IPV6 */ | |
1943 | vty_out (vty, "!%s", VTY_NEWLINE); | |
1944 | return 0; | |
1945 | } | |
1946 | ||
1947 | /* table node for routing tables. */ | |
1948 | struct cmd_node forwarding_node = | |
1949 | { | |
1950 | FORWARDING_NODE, | |
1951 | "", /* This node has no interface. */ | |
1952 | 1 | |
1953 | }; | |
1954 | ||
1955 | \f | |
1956 | /* Initialisation of zebra and installation of commands. */ | |
1957 | void | |
1958 | zebra_init () | |
1959 | { | |
1960 | /* Client list init. */ | |
1961 | client_list = list_new (); | |
1962 | ||
1963 | /* Forwarding is on by default. */ | |
1964 | ipforward_on (); | |
1965 | #ifdef HAVE_IPV6 | |
1966 | ipforward_ipv6_on (); | |
1967 | #endif /* HAVE_IPV6 */ | |
1968 | ||
1969 | /* Make zebra server socket. */ | |
1970 | #ifdef HAVE_TCP_ZEBRA | |
1971 | zebra_serv (); | |
1972 | #else | |
1973 | zebra_serv_un (ZEBRA_SERV_PATH); | |
1974 | #endif /* HAVE_TCP_ZEBRA */ | |
1975 | ||
1976 | /* Install configuration write function. */ | |
1977 | install_node (&table_node, config_write_table); | |
1978 | install_node (&forwarding_node, config_write_forwarding); | |
1979 | ||
1980 | install_element (VIEW_NODE, &show_ip_forwarding_cmd); | |
1981 | install_element (ENABLE_NODE, &show_ip_forwarding_cmd); | |
647e4f1f | 1982 | install_element (CONFIG_NODE, &ip_forwarding_cmd); |
718e3744 | 1983 | install_element (CONFIG_NODE, &no_ip_forwarding_cmd); |
1984 | install_element (ENABLE_NODE, &show_zebra_client_cmd); | |
1985 | ||
1986 | #ifdef HAVE_NETLINK | |
1987 | install_element (VIEW_NODE, &show_table_cmd); | |
1988 | install_element (ENABLE_NODE, &show_table_cmd); | |
1989 | install_element (CONFIG_NODE, &config_table_cmd); | |
1990 | #endif /* HAVE_NETLINK */ | |
1991 | ||
1992 | #ifdef HAVE_IPV6 | |
1993 | install_element (VIEW_NODE, &show_ipv6_forwarding_cmd); | |
1994 | install_element (ENABLE_NODE, &show_ipv6_forwarding_cmd); | |
1995 | install_element (CONFIG_NODE, &no_ipv6_forwarding_cmd); | |
1996 | #endif /* HAVE_IPV6 */ | |
ccf3557b | 1997 | |
1998 | FIFO_INIT(&message_queue); | |
1999 | t_write = NULL; | |
718e3744 | 2000 | } |