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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" |
719e9741 | 37 | #include "network.h" |
38 | #include "buffer.h" | |
fb018d25 | 39 | #include "nexthop.h" |
718e3744 | 40 | |
41 | #include "zebra/zserv.h" | |
18a6dce6 | 42 | #include "zebra/router-id.h" |
718e3744 | 43 | #include "zebra/redistribute.h" |
44 | #include "zebra/debug.h" | |
45 | #include "zebra/ipforward.h" | |
fb018d25 | 46 | #include "zebra/zebra_rnh.h" |
6b0655a2 | 47 | |
718e3744 | 48 | /* Event list of zebra. */ |
49 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
50 | ||
b21b19c5 | 51 | extern struct zebra_t zebrad; |
718e3744 | 52 | |
b9df2d25 | 53 | static void zebra_event (enum event event, int sock, struct zserv *client); |
ccf3557b | 54 | |
edd7c245 | 55 | extern struct zebra_privs_t zserv_privs; |
6b0655a2 | 56 | |
719e9741 | 57 | static void zebra_client_close (struct zserv *client); |
ccf3557b | 58 | |
719e9741 | 59 | static int |
60 | zserv_delayed_close(struct thread *thread) | |
ccf3557b | 61 | { |
719e9741 | 62 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 63 | |
719e9741 | 64 | client->t_suicide = NULL; |
65 | zebra_client_close(client); | |
ccf3557b | 66 | return 0; |
67 | } | |
68 | ||
2ea1ab1c VT |
69 | /* When client connects, it sends hello message |
70 | * with promise to send zebra routes of specific type. | |
71 | * Zebra stores a socket fd of the client into | |
72 | * this array. And use it to clean up routes that | |
73 | * client didn't remove for some reasons after closing | |
74 | * connection. | |
75 | */ | |
76 | static int route_type_oaths[ZEBRA_ROUTE_MAX]; | |
77 | ||
719e9741 | 78 | static int |
79 | zserv_flush_data(struct thread *thread) | |
ccf3557b | 80 | { |
719e9741 | 81 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 82 | |
719e9741 | 83 | client->t_write = NULL; |
84 | if (client->t_suicide) | |
ccf3557b | 85 | { |
719e9741 | 86 | zebra_client_close(client); |
87 | return -1; | |
ccf3557b | 88 | } |
719e9741 | 89 | switch (buffer_flush_available(client->wb, client->sock)) |
ccf3557b | 90 | { |
719e9741 | 91 | case BUFFER_ERROR: |
92 | zlog_warn("%s: buffer_flush_available failed on zserv client fd %d, " | |
93 | "closing", __func__, client->sock); | |
94 | zebra_client_close(client); | |
95 | break; | |
96 | case BUFFER_PENDING: | |
97 | client->t_write = thread_add_write(zebrad.master, zserv_flush_data, | |
98 | client, client->sock); | |
99 | break; | |
100 | case BUFFER_EMPTY: | |
101 | break; | |
ccf3557b | 102 | } |
04b02fda DS |
103 | |
104 | client->last_write_time = quagga_time(NULL); | |
719e9741 | 105 | return 0; |
106 | } | |
ccf3557b | 107 | |
fb018d25 | 108 | int |
719e9741 | 109 | zebra_server_send_message(struct zserv *client) |
110 | { | |
111 | if (client->t_suicide) | |
112 | return -1; | |
04b02fda DS |
113 | |
114 | stream_set_getp(client->obuf, 0); | |
115 | client->last_write_cmd = stream_getw_from(client->obuf, 4); | |
719e9741 | 116 | switch (buffer_write(client->wb, client->sock, STREAM_DATA(client->obuf), |
117 | stream_get_endp(client->obuf))) | |
118 | { | |
119 | case BUFFER_ERROR: | |
120 | zlog_warn("%s: buffer_write failed to zserv client fd %d, closing", | |
121 | __func__, client->sock); | |
122 | /* Schedule a delayed close since many of the functions that call this | |
123 | one do not check the return code. They do not allow for the | |
124 | possibility that an I/O error may have caused the client to be | |
125 | deleted. */ | |
126 | client->t_suicide = thread_add_event(zebrad.master, zserv_delayed_close, | |
127 | client, 0); | |
128 | return -1; | |
719e9741 | 129 | case BUFFER_EMPTY: |
130 | THREAD_OFF(client->t_write); | |
131 | break; | |
132 | case BUFFER_PENDING: | |
133 | THREAD_WRITE_ON(zebrad.master, client->t_write, | |
134 | zserv_flush_data, client, client->sock); | |
135 | break; | |
136 | } | |
04b02fda DS |
137 | |
138 | client->last_write_time = quagga_time(NULL); | |
ccf3557b | 139 | return 0; |
140 | } | |
141 | ||
fb018d25 | 142 | void |
c1b9800a | 143 | zserv_create_header (struct stream *s, uint16_t cmd) |
144 | { | |
145 | /* length placeholder, caller can update */ | |
146 | stream_putw (s, ZEBRA_HEADER_SIZE); | |
147 | stream_putc (s, ZEBRA_HEADER_MARKER); | |
148 | stream_putc (s, ZSERV_VERSION); | |
149 | stream_putw (s, cmd); | |
150 | } | |
151 | ||
51d4ef83 JB |
152 | static void |
153 | zserv_encode_interface (struct stream *s, struct interface *ifp) | |
154 | { | |
155 | /* Interface information. */ | |
156 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
157 | stream_putl (s, ifp->ifindex); | |
158 | stream_putc (s, ifp->status); | |
159 | stream_putq (s, ifp->flags); | |
244c1cdc DS |
160 | stream_putc (s, ifp->ptm_enable); |
161 | stream_putc (s, ifp->ptm_status); | |
51d4ef83 JB |
162 | stream_putl (s, ifp->metric); |
163 | stream_putl (s, ifp->mtu); | |
164 | stream_putl (s, ifp->mtu6); | |
165 | stream_putl (s, ifp->bandwidth); | |
166 | #ifdef HAVE_STRUCT_SOCKADDR_DL | |
ca3ccd87 | 167 | stream_put (s, &ifp->sdl, sizeof (ifp->sdl_storage)); |
51d4ef83 JB |
168 | #else |
169 | stream_putl (s, ifp->hw_addr_len); | |
170 | if (ifp->hw_addr_len) | |
171 | stream_put (s, ifp->hw_addr, ifp->hw_addr_len); | |
172 | #endif /* HAVE_STRUCT_SOCKADDR_DL */ | |
173 | ||
174 | /* Write packet size. */ | |
175 | stream_putw_at (s, 0, stream_get_endp (s)); | |
176 | } | |
177 | ||
718e3744 | 178 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 179 | /* |
180 | * This function is called in the following situations: | |
181 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
182 | * from the client. | |
183 | * - at startup, when zebra figures out the available interfaces | |
184 | * - when an interface is added (where support for | |
185 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
186 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
187 | * received) | |
188 | */ | |
718e3744 | 189 | int |
190 | zsend_interface_add (struct zserv *client, struct interface *ifp) | |
191 | { | |
192 | struct stream *s; | |
193 | ||
194 | /* Check this client need interface information. */ | |
195 | if (! client->ifinfo) | |
719e9741 | 196 | return 0; |
718e3744 | 197 | |
198 | s = client->obuf; | |
199 | stream_reset (s); | |
200 | ||
c1b9800a | 201 | zserv_create_header (s, ZEBRA_INTERFACE_ADD); |
51d4ef83 | 202 | zserv_encode_interface (s, ifp); |
718e3744 | 203 | |
04b02fda | 204 | client->ifadd_cnt++; |
719e9741 | 205 | return zebra_server_send_message(client); |
718e3744 | 206 | } |
207 | ||
208 | /* Interface deletion from zebra daemon. */ | |
209 | int | |
210 | zsend_interface_delete (struct zserv *client, struct interface *ifp) | |
211 | { | |
212 | struct stream *s; | |
213 | ||
214 | /* Check this client need interface information. */ | |
215 | if (! client->ifinfo) | |
719e9741 | 216 | return 0; |
718e3744 | 217 | |
218 | s = client->obuf; | |
219 | stream_reset (s); | |
718e3744 | 220 | |
51d4ef83 JB |
221 | zserv_create_header (s, ZEBRA_INTERFACE_DELETE); |
222 | zserv_encode_interface (s, ifp); | |
718e3744 | 223 | |
04b02fda | 224 | client->ifdel_cnt++; |
719e9741 | 225 | return zebra_server_send_message (client); |
718e3744 | 226 | } |
227 | ||
b9df2d25 | 228 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
229 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
230 | * | |
231 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
232 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
233 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
234 | * sent from zebra to the client | |
235 | * - redistribute new address info to all clients in the following situations | |
236 | * - at startup, when zebra figures out the available interfaces | |
237 | * - when an interface is added (where support for | |
238 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
239 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
240 | * received) | |
241 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
242 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
243 | * - when an RTM_NEWADDR message is received from the kernel, | |
244 | * | |
245 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
246 | * | |
247 | * zsend_interface_address(DELETE) | |
248 | * ^ | |
249 | * | | |
250 | * zebra_interface_address_delete_update | |
251 | * ^ ^ ^ | |
6eb8827d | 252 | * | | if_delete_update |
253 | * | | | |
b9df2d25 | 254 | * ip_address_uninstall connected_delete_ipv4 |
255 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
256 | * ^ ^ | |
257 | * | | | |
258 | * | RTM_NEWADDR on routing/netlink socket | |
259 | * | | |
260 | * vty commands: | |
261 | * "no ip address A.B.C.D/M [label LINE]" | |
262 | * "no ip address A.B.C.D/M secondary" | |
263 | * ["no ipv6 address X:X::X:X/M"] | |
264 | * | |
265 | */ | |
718e3744 | 266 | int |
b9df2d25 | 267 | zsend_interface_address (int cmd, struct zserv *client, |
268 | struct interface *ifp, struct connected *ifc) | |
718e3744 | 269 | { |
270 | int blen; | |
271 | struct stream *s; | |
272 | struct prefix *p; | |
273 | ||
274 | /* Check this client need interface information. */ | |
275 | if (! client->ifinfo) | |
719e9741 | 276 | return 0; |
718e3744 | 277 | |
278 | s = client->obuf; | |
279 | stream_reset (s); | |
c1b9800a | 280 | |
281 | zserv_create_header (s, cmd); | |
718e3744 | 282 | stream_putl (s, ifp->ifindex); |
283 | ||
284 | /* Interface address flag. */ | |
285 | stream_putc (s, ifc->flags); | |
286 | ||
287 | /* Prefix information. */ | |
288 | p = ifc->address; | |
289 | stream_putc (s, p->family); | |
290 | blen = prefix_blen (p); | |
291 | stream_put (s, &p->u.prefix, blen); | |
b9df2d25 | 292 | |
293 | /* | |
294 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
295 | * but zebra_interface_address_delete_read() in the gnu version | |
296 | * expects to find it | |
297 | */ | |
718e3744 | 298 | stream_putc (s, p->prefixlen); |
299 | ||
300 | /* Destination. */ | |
301 | p = ifc->destination; | |
302 | if (p) | |
303 | stream_put (s, &p->u.prefix, blen); | |
304 | else | |
305 | stream_put (s, NULL, blen); | |
306 | ||
307 | /* Write packet size. */ | |
308 | stream_putw_at (s, 0, stream_get_endp (s)); | |
309 | ||
04b02fda | 310 | client->connected_rt_add_cnt++; |
719e9741 | 311 | return zebra_server_send_message(client); |
718e3744 | 312 | } |
313 | ||
a80beece DS |
314 | static int |
315 | zsend_interface_nbr_address (int cmd, struct zserv *client, | |
316 | struct interface *ifp, struct nbr_connected *ifc) | |
317 | { | |
318 | int blen; | |
319 | struct stream *s; | |
320 | struct prefix *p; | |
321 | ||
322 | /* Check this client need interface information. */ | |
323 | if (! client->ifinfo) | |
324 | return 0; | |
325 | ||
326 | s = client->obuf; | |
327 | stream_reset (s); | |
328 | ||
329 | zserv_create_header (s, cmd); | |
330 | stream_putl (s, ifp->ifindex); | |
331 | ||
332 | /* Prefix information. */ | |
333 | p = ifc->address; | |
334 | stream_putc (s, p->family); | |
335 | blen = prefix_blen (p); | |
336 | stream_put (s, &p->u.prefix, blen); | |
337 | ||
338 | /* | |
339 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
340 | * but zebra_interface_address_delete_read() in the gnu version | |
341 | * expects to find it | |
342 | */ | |
343 | stream_putc (s, p->prefixlen); | |
344 | ||
345 | /* Write packet size. */ | |
346 | stream_putw_at (s, 0, stream_get_endp (s)); | |
347 | ||
348 | return zebra_server_send_message(client); | |
349 | } | |
350 | ||
351 | /* Interface address addition. */ | |
352 | static void | |
353 | zebra_interface_nbr_address_add_update (struct interface *ifp, | |
354 | struct nbr_connected *ifc) | |
355 | { | |
356 | struct listnode *node, *nnode; | |
357 | struct zserv *client; | |
358 | struct prefix *p; | |
359 | ||
360 | if (IS_ZEBRA_DEBUG_EVENT) | |
361 | { | |
362 | char buf[INET6_ADDRSTRLEN]; | |
363 | ||
364 | p = ifc->address; | |
365 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
366 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
367 | p->prefixlen, ifc->ifp->name); | |
368 | } | |
369 | ||
370 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
371 | if (client->ifinfo) | |
372 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, ifp, ifc); | |
373 | } | |
374 | ||
375 | /* Interface address deletion. */ | |
376 | static void | |
377 | zebra_interface_nbr_address_delete_update (struct interface *ifp, | |
378 | struct nbr_connected *ifc) | |
379 | { | |
380 | struct listnode *node, *nnode; | |
381 | struct zserv *client; | |
382 | struct prefix *p; | |
383 | ||
384 | if (IS_ZEBRA_DEBUG_EVENT) | |
385 | { | |
386 | char buf[INET6_ADDRSTRLEN]; | |
387 | ||
388 | p = ifc->address; | |
389 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
390 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
391 | p->prefixlen, ifc->ifp->name); | |
392 | } | |
393 | ||
394 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
395 | if (client->ifinfo) | |
396 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, client, ifp, ifc); | |
397 | } | |
398 | ||
399 | /* Add new nbr connected IPv6 address if none exists already, or replace the | |
400 | existing one if an ifc entry is found on the interface. */ | |
401 | void | |
402 | nbr_connected_replacement_add_ipv6 (struct interface *ifp, struct in6_addr *address, | |
403 | u_char prefixlen) | |
404 | { | |
405 | struct nbr_connected *ifc; | |
406 | struct prefix p; | |
407 | ||
408 | p.family = AF_INET6; | |
409 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
410 | p.prefixlen = prefixlen; | |
411 | ||
412 | if (nbr_connected_check(ifp, &p)) | |
413 | return; | |
414 | ||
415 | if (!(ifc = listnode_head(ifp->nbr_connected))) | |
416 | { | |
417 | /* new addition */ | |
418 | ifc = nbr_connected_new (); | |
419 | ifc->address = prefix_new(); | |
420 | ifc->ifp = ifp; | |
421 | listnode_add (ifp->nbr_connected, ifc); | |
422 | } | |
423 | ||
424 | prefix_copy(ifc->address, &p); | |
425 | ||
426 | zebra_interface_nbr_address_add_update (ifp, ifc); | |
427 | } | |
428 | ||
429 | void | |
430 | nbr_connected_delete_ipv6 (struct interface *ifp, struct in6_addr *address, | |
431 | u_char prefixlen) | |
432 | { | |
433 | struct nbr_connected *ifc; | |
434 | struct prefix p; | |
435 | ||
436 | p.family = AF_INET6; | |
437 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
438 | p.prefixlen = prefixlen; | |
439 | ||
440 | ifc = nbr_connected_check(ifp, &p); | |
441 | if (!ifc) | |
442 | return; | |
443 | ||
444 | listnode_delete (ifp->nbr_connected, ifc); | |
445 | ||
446 | zebra_interface_nbr_address_delete_update (ifp, ifc); | |
447 | ||
448 | nbr_connected_free (ifc); | |
449 | } | |
450 | ||
b9df2d25 | 451 | /* |
452 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
453 | * ZEBRA_INTERFACE_DOWN. | |
454 | * | |
455 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
456 | * the clients in one of 2 situations: | |
457 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
458 | * - a vty command modifying the bandwidth of an interface is received. | |
459 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
460 | */ | |
718e3744 | 461 | int |
b9df2d25 | 462 | zsend_interface_update (int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 463 | { |
464 | struct stream *s; | |
465 | ||
466 | /* Check this client need interface information. */ | |
467 | if (! client->ifinfo) | |
719e9741 | 468 | return 0; |
718e3744 | 469 | |
470 | s = client->obuf; | |
471 | stream_reset (s); | |
472 | ||
c1b9800a | 473 | zserv_create_header (s, cmd); |
51d4ef83 | 474 | zserv_encode_interface (s, ifp); |
718e3744 | 475 | |
04b02fda DS |
476 | if (cmd == ZEBRA_INTERFACE_UP) |
477 | client->ifup_cnt++; | |
478 | else | |
479 | client->ifdown_cnt++; | |
480 | ||
719e9741 | 481 | return zebra_server_send_message(client); |
718e3744 | 482 | } |
483 | ||
d5a5c8f0 DS |
484 | int |
485 | zsend_interface_bfd_update (int cmd, struct zserv *client, | |
486 | struct interface *ifp, struct prefix *p) | |
487 | { | |
488 | int blen; | |
489 | struct stream *s; | |
490 | ||
491 | /* Check this client need interface information. */ | |
492 | if (! client->ifinfo) | |
493 | return 0; | |
494 | ||
495 | s = client->obuf; | |
496 | stream_reset (s); | |
497 | ||
498 | zserv_create_header (s, cmd); | |
499 | stream_putl (s, ifp->ifindex); | |
500 | ||
501 | /* BFD destination prefix information. */ | |
502 | stream_putc (s, p->family); | |
503 | blen = prefix_blen (p); | |
504 | stream_put (s, &p->u.prefix, blen); | |
505 | stream_putc (s, p->prefixlen); | |
506 | ||
507 | /* Write packet size. */ | |
508 | stream_putw_at (s, 0, stream_get_endp (s)); | |
509 | ||
510 | client->if_bfd_cnt++; | |
511 | return zebra_server_send_message(client); | |
512 | } | |
513 | ||
b9df2d25 | 514 | /* |
515 | * The zebra server sends the clients a ZEBRA_IPV4_ROUTE_ADD or a | |
516 | * ZEBRA_IPV6_ROUTE_ADD via zsend_route_multipath in the following | |
517 | * situations: | |
518 | * - when the client starts up, and requests default information | |
519 | * by sending a ZEBRA_REDISTRIBUTE_DEFAULT_ADD to the zebra server, in the | |
520 | * - case of rip, ripngd, ospfd and ospf6d, when the client sends a | |
521 | * ZEBRA_REDISTRIBUTE_ADD as a result of the "redistribute" vty cmd, | |
522 | * - when the zebra server redistributes routes after it updates its rib | |
523 | * | |
524 | * The zebra server sends clients a ZEBRA_IPV4_ROUTE_DELETE or a | |
525 | * ZEBRA_IPV6_ROUTE_DELETE via zsend_route_multipath when: | |
526 | * - a "ip route" or "ipv6 route" vty command is issued, a prefix is | |
527 | * - deleted from zebra's rib, and this info | |
528 | * has to be redistributed to the clients | |
529 | * | |
530 | * XXX The ZEBRA_IPV*_ROUTE_ADD message is also sent by the client to the | |
531 | * zebra server when the client wants to tell the zebra server to add a | |
532 | * route to the kernel (zapi_ipv4_add etc. ). Since it's essentially the | |
533 | * same message being sent back and forth, this function and | |
534 | * zapi_ipv{4,6}_{add, delete} should be re-written to avoid code | |
535 | * duplication. | |
536 | */ | |
718e3744 | 537 | int |
b9df2d25 | 538 | zsend_route_multipath (int cmd, struct zserv *client, struct prefix *p, |
539 | struct rib *rib) | |
718e3744 | 540 | { |
541 | int psize; | |
542 | struct stream *s; | |
543 | struct nexthop *nexthop; | |
1dcb5172 | 544 | unsigned long nhnummark = 0, messmark = 0; |
b9df2d25 | 545 | int nhnum = 0; |
1dcb5172 | 546 | u_char zapi_flags = 0; |
b9df2d25 | 547 | |
718e3744 | 548 | s = client->obuf; |
549 | stream_reset (s); | |
c1b9800a | 550 | |
551 | zserv_create_header (s, cmd); | |
552 | ||
553 | /* Put type and nexthop. */ | |
718e3744 | 554 | stream_putc (s, rib->type); |
555 | stream_putc (s, rib->flags); | |
1dcb5172 | 556 | |
557 | /* marker for message flags field */ | |
558 | messmark = stream_get_endp (s); | |
559 | stream_putc (s, 0); | |
718e3744 | 560 | |
561 | /* Prefix. */ | |
562 | psize = PSIZE (p->prefixlen); | |
563 | stream_putc (s, p->prefixlen); | |
b9df2d25 | 564 | stream_write (s, (u_char *) & p->u.prefix, psize); |
565 | ||
566 | /* | |
567 | * XXX The message format sent by zebra below does not match the format | |
568 | * of the corresponding message expected by the zebra server | |
569 | * itself (e.g., see zread_ipv4_add). The nexthop_num is not set correctly, | |
570 | * (is there a bug on the client side if more than one segment is sent?) | |
571 | * nexthop ZEBRA_NEXTHOP_IPV4 is never set, ZEBRA_NEXTHOP_IFINDEX | |
572 | * is hard-coded. | |
573 | */ | |
718e3744 | 574 | /* Nexthop */ |
1dcb5172 | 575 | |
718e3744 | 576 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
577 | { | |
fa713d9e CF |
578 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
579 | || nexthop_has_fib_child(nexthop)) | |
b9df2d25 | 580 | { |
1dcb5172 | 581 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); |
582 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
583 | ||
584 | if (nhnummark == 0) | |
585 | { | |
586 | nhnummark = stream_get_endp (s); | |
587 | stream_putc (s, 1); /* placeholder */ | |
588 | } | |
589 | ||
b9df2d25 | 590 | nhnum++; |
591 | ||
592 | switch(nexthop->type) | |
593 | { | |
594 | case NEXTHOP_TYPE_IPV4: | |
595 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
596 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
597 | break; | |
718e3744 | 598 | #ifdef HAVE_IPV6 |
b9df2d25 | 599 | case NEXTHOP_TYPE_IPV6: |
600 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
601 | case NEXTHOP_TYPE_IPV6_IFNAME: | |
602 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); | |
603 | break; | |
604 | #endif | |
605 | default: | |
606 | if (cmd == ZEBRA_IPV4_ROUTE_ADD | |
607 | || cmd == ZEBRA_IPV4_ROUTE_DELETE) | |
608 | { | |
609 | struct in_addr empty; | |
44983cf8 | 610 | memset (&empty, 0, sizeof (struct in_addr)); |
b9df2d25 | 611 | stream_write (s, (u_char *) &empty, IPV4_MAX_BYTELEN); |
612 | } | |
613 | else | |
614 | { | |
615 | struct in6_addr empty; | |
616 | memset (&empty, 0, sizeof (struct in6_addr)); | |
617 | stream_write (s, (u_char *) &empty, IPV6_MAX_BYTELEN); | |
618 | } | |
619 | } | |
620 | ||
621 | /* Interface index. */ | |
622 | stream_putc (s, 1); | |
623 | stream_putl (s, nexthop->ifindex); | |
624 | ||
625 | break; | |
626 | } | |
718e3744 | 627 | } |
628 | ||
629 | /* Metric */ | |
cf8a831b | 630 | if (cmd == ZEBRA_IPV4_ROUTE_ADD || cmd == ZEBRA_IPV6_ROUTE_ADD) |
1dcb5172 | 631 | { |
fbf5d033 | 632 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_DISTANCE); |
633 | stream_putc (s, rib->distance); | |
1dcb5172 | 634 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_METRIC); |
635 | stream_putl (s, rib->metric); | |
0d9551dc DS |
636 | |
637 | /* tag */ | |
638 | if (rib->tag) | |
639 | { | |
640 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
641 | stream_putw(s, rib->tag); | |
642 | } | |
1dcb5172 | 643 | } |
644 | ||
645 | /* write real message flags value */ | |
646 | stream_putc_at (s, messmark, zapi_flags); | |
647 | ||
b9df2d25 | 648 | /* Write next-hop number */ |
649 | if (nhnummark) | |
c1eaa442 | 650 | stream_putc_at (s, nhnummark, nhnum); |
b9df2d25 | 651 | |
718e3744 | 652 | /* Write packet size. */ |
653 | stream_putw_at (s, 0, stream_get_endp (s)); | |
654 | ||
719e9741 | 655 | return zebra_server_send_message(client); |
718e3744 | 656 | } |
657 | ||
b9df2d25 | 658 | #ifdef HAVE_IPV6 |
719e9741 | 659 | static int |
718e3744 | 660 | zsend_ipv6_nexthop_lookup (struct zserv *client, struct in6_addr *addr) |
661 | { | |
662 | struct stream *s; | |
663 | struct rib *rib; | |
664 | unsigned long nump; | |
665 | u_char num; | |
666 | struct nexthop *nexthop; | |
667 | ||
668 | /* Lookup nexthop. */ | |
669 | rib = rib_match_ipv6 (addr); | |
670 | ||
671 | /* Get output stream. */ | |
672 | s = client->obuf; | |
673 | stream_reset (s); | |
674 | ||
675 | /* Fill in result. */ | |
c1b9800a | 676 | zserv_create_header (s, ZEBRA_IPV6_NEXTHOP_LOOKUP); |
718e3744 | 677 | stream_put (s, &addr, 16); |
678 | ||
679 | if (rib) | |
680 | { | |
681 | stream_putl (s, rib->metric); | |
682 | num = 0; | |
9985f83c | 683 | nump = stream_get_endp(s); |
718e3744 | 684 | stream_putc (s, 0); |
fa713d9e CF |
685 | /* Only non-recursive routes are elegible to resolve nexthop we |
686 | * are looking up. Therefore, we will just iterate over the top | |
687 | * chain of nexthops. */ | |
718e3744 | 688 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
689 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
690 | { | |
691 | stream_putc (s, nexthop->type); | |
692 | switch (nexthop->type) | |
693 | { | |
694 | case ZEBRA_NEXTHOP_IPV6: | |
695 | stream_put (s, &nexthop->gate.ipv6, 16); | |
696 | break; | |
697 | case ZEBRA_NEXTHOP_IPV6_IFINDEX: | |
698 | case ZEBRA_NEXTHOP_IPV6_IFNAME: | |
699 | stream_put (s, &nexthop->gate.ipv6, 16); | |
700 | stream_putl (s, nexthop->ifindex); | |
701 | break; | |
702 | case ZEBRA_NEXTHOP_IFINDEX: | |
703 | case ZEBRA_NEXTHOP_IFNAME: | |
704 | stream_putl (s, nexthop->ifindex); | |
705 | break; | |
fa2b17e3 | 706 | default: |
707 | /* do nothing */ | |
708 | break; | |
718e3744 | 709 | } |
710 | num++; | |
711 | } | |
712 | stream_putc_at (s, nump, num); | |
713 | } | |
714 | else | |
715 | { | |
716 | stream_putl (s, 0); | |
717 | stream_putc (s, 0); | |
718 | } | |
719 | ||
720 | stream_putw_at (s, 0, stream_get_endp (s)); | |
04b02fda | 721 | |
719e9741 | 722 | return zebra_server_send_message(client); |
718e3744 | 723 | } |
724 | #endif /* HAVE_IPV6 */ | |
725 | ||
b9df2d25 | 726 | static int |
718e3744 | 727 | zsend_ipv4_nexthop_lookup (struct zserv *client, struct in_addr addr) |
728 | { | |
729 | struct stream *s; | |
730 | struct rib *rib; | |
731 | unsigned long nump; | |
732 | u_char num; | |
733 | struct nexthop *nexthop; | |
734 | ||
735 | /* Lookup nexthop. */ | |
736 | rib = rib_match_ipv4 (addr); | |
737 | ||
738 | /* Get output stream. */ | |
739 | s = client->obuf; | |
740 | stream_reset (s); | |
741 | ||
742 | /* Fill in result. */ | |
c1b9800a | 743 | zserv_create_header (s, ZEBRA_IPV4_NEXTHOP_LOOKUP); |
718e3744 | 744 | stream_put_in_addr (s, &addr); |
745 | ||
746 | if (rib) | |
747 | { | |
bb97e462 CF |
748 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
749 | zlog_debug("%s: Matching rib entry found.", __func__); | |
718e3744 | 750 | stream_putl (s, rib->metric); |
751 | num = 0; | |
9985f83c | 752 | nump = stream_get_endp(s); |
718e3744 | 753 | stream_putc (s, 0); |
fa713d9e CF |
754 | /* Only non-recursive routes are elegible to resolve the nexthop we |
755 | * are looking up. Therefore, we will just iterate over the top | |
756 | * chain of nexthops. */ | |
718e3744 | 757 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
758 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
759 | { | |
760 | stream_putc (s, nexthop->type); | |
761 | switch (nexthop->type) | |
762 | { | |
763 | case ZEBRA_NEXTHOP_IPV4: | |
764 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
765 | break; | |
bb97e462 CF |
766 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
767 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
768 | stream_putl (s, nexthop->ifindex); | |
769 | break; | |
718e3744 | 770 | case ZEBRA_NEXTHOP_IFINDEX: |
771 | case ZEBRA_NEXTHOP_IFNAME: | |
772 | stream_putl (s, nexthop->ifindex); | |
773 | break; | |
fa2b17e3 | 774 | default: |
775 | /* do nothing */ | |
776 | break; | |
718e3744 | 777 | } |
778 | num++; | |
779 | } | |
780 | stream_putc_at (s, nump, num); | |
781 | } | |
782 | else | |
783 | { | |
bb97e462 CF |
784 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
785 | zlog_debug("%s: No matching rib entry found.", __func__); | |
718e3744 | 786 | stream_putl (s, 0); |
787 | stream_putc (s, 0); | |
788 | } | |
789 | ||
790 | stream_putw_at (s, 0, stream_get_endp (s)); | |
791 | ||
719e9741 | 792 | return zebra_server_send_message(client); |
718e3744 | 793 | } |
794 | ||
fb018d25 DS |
795 | /* Nexthop register */ |
796 | static int | |
797 | zserv_nexthop_register (struct zserv *client, int sock, u_short length) | |
798 | { | |
799 | struct rnh *rnh; | |
800 | struct stream *s; | |
801 | struct prefix p; | |
802 | u_short l = 0; | |
fc9a856f | 803 | u_char connected; |
fb018d25 DS |
804 | |
805 | if (IS_ZEBRA_DEBUG_NHT) | |
806 | zlog_debug("nexthop_register msg from client %s: length=%d\n", | |
807 | zebra_route_string(client->proto), length); | |
808 | ||
809 | s = client->ibuf; | |
810 | ||
811 | while (l < length) | |
812 | { | |
fc9a856f | 813 | connected = stream_getc(s); |
fb018d25 DS |
814 | p.family = stream_getw(s); |
815 | p.prefixlen = stream_getc(s); | |
fc9a856f | 816 | l += 4; |
fb018d25 DS |
817 | stream_get(&p.u.prefix, s, PSIZE(p.prefixlen)); |
818 | l += PSIZE(p.prefixlen); | |
819 | rnh = zebra_add_rnh(&p, 0); | |
fc9a856f DS |
820 | if (connected) |
821 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
822 | ||
04b02fda | 823 | client->nh_reg_time = quagga_time(NULL); |
fb018d25 DS |
824 | zebra_add_rnh_client(rnh, client); |
825 | } | |
9f0ea7d4 DS |
826 | zebra_evaluate_rnh_table(0, AF_INET, 0); |
827 | zebra_evaluate_rnh_table(0, AF_INET6, 0); | |
fb018d25 DS |
828 | return 0; |
829 | } | |
830 | ||
831 | /* Nexthop register */ | |
832 | static int | |
833 | zserv_nexthop_unregister (struct zserv *client, int sock, u_short length) | |
834 | { | |
835 | struct rnh *rnh; | |
836 | struct stream *s; | |
837 | struct prefix p; | |
838 | u_short l = 0; | |
fc9a856f | 839 | u_char connected; |
fb018d25 DS |
840 | |
841 | if (IS_ZEBRA_DEBUG_NHT) | |
842 | zlog_debug("nexthop_unregister msg from client %s: length=%d\n", | |
843 | zebra_route_string(client->proto), length); | |
844 | ||
845 | s = client->ibuf; | |
846 | ||
847 | while (l < length) | |
848 | { | |
fc9a856f | 849 | connected = stream_getc(s); |
fb018d25 DS |
850 | p.family = stream_getw(s); |
851 | p.prefixlen = stream_getc(s); | |
fc9a856f | 852 | l += 4; |
fb018d25 DS |
853 | stream_get(&p.u.prefix, s, PSIZE(p.prefixlen)); |
854 | l += PSIZE(p.prefixlen); | |
855 | rnh = zebra_lookup_rnh(&p, 0); | |
856 | if (rnh) | |
04b02fda DS |
857 | { |
858 | client->nh_dereg_time = quagga_time(NULL); | |
859 | zebra_remove_rnh_client(rnh, client); | |
860 | } | |
fb018d25 DS |
861 | } |
862 | return 0; | |
863 | } | |
864 | ||
b9df2d25 | 865 | static int |
718e3744 | 866 | zsend_ipv4_import_lookup (struct zserv *client, struct prefix_ipv4 *p) |
867 | { | |
868 | struct stream *s; | |
869 | struct rib *rib; | |
870 | unsigned long nump; | |
871 | u_char num; | |
872 | struct nexthop *nexthop; | |
873 | ||
874 | /* Lookup nexthop. */ | |
875 | rib = rib_lookup_ipv4 (p); | |
876 | ||
877 | /* Get output stream. */ | |
878 | s = client->obuf; | |
879 | stream_reset (s); | |
880 | ||
881 | /* Fill in result. */ | |
c1b9800a | 882 | zserv_create_header (s, ZEBRA_IPV4_IMPORT_LOOKUP); |
718e3744 | 883 | stream_put_in_addr (s, &p->prefix); |
884 | ||
885 | if (rib) | |
886 | { | |
887 | stream_putl (s, rib->metric); | |
888 | num = 0; | |
9985f83c | 889 | nump = stream_get_endp(s); |
718e3744 | 890 | stream_putc (s, 0); |
891 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
fa713d9e CF |
892 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
893 | || nexthop_has_fib_child(nexthop)) | |
718e3744 | 894 | { |
895 | stream_putc (s, nexthop->type); | |
896 | switch (nexthop->type) | |
897 | { | |
898 | case ZEBRA_NEXTHOP_IPV4: | |
899 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
900 | break; | |
a12afd5e CF |
901 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
902 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
903 | stream_putl (s, nexthop->ifindex); | |
904 | break; | |
718e3744 | 905 | case ZEBRA_NEXTHOP_IFINDEX: |
906 | case ZEBRA_NEXTHOP_IFNAME: | |
907 | stream_putl (s, nexthop->ifindex); | |
908 | break; | |
fa2b17e3 | 909 | default: |
910 | /* do nothing */ | |
911 | break; | |
718e3744 | 912 | } |
913 | num++; | |
914 | } | |
915 | stream_putc_at (s, nump, num); | |
916 | } | |
917 | else | |
918 | { | |
919 | stream_putl (s, 0); | |
920 | stream_putc (s, 0); | |
921 | } | |
922 | ||
923 | stream_putw_at (s, 0, stream_get_endp (s)); | |
04b02fda | 924 | |
719e9741 | 925 | return zebra_server_send_message(client); |
718e3744 | 926 | } |
6b0655a2 | 927 | |
18a6dce6 | 928 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
929 | int | |
930 | zsend_router_id_update (struct zserv *client, struct prefix *p) | |
931 | { | |
932 | struct stream *s; | |
933 | int blen; | |
934 | ||
935 | /* Check this client need interface information. */ | |
936 | if (!client->ridinfo) | |
719e9741 | 937 | return 0; |
18a6dce6 | 938 | |
939 | s = client->obuf; | |
940 | stream_reset (s); | |
941 | ||
18a6dce6 | 942 | /* Message type. */ |
c1b9800a | 943 | zserv_create_header (s, ZEBRA_ROUTER_ID_UPDATE); |
18a6dce6 | 944 | |
945 | /* Prefix information. */ | |
946 | stream_putc (s, p->family); | |
947 | blen = prefix_blen (p); | |
948 | stream_put (s, &p->u.prefix, blen); | |
949 | stream_putc (s, p->prefixlen); | |
950 | ||
951 | /* Write packet size. */ | |
952 | stream_putw_at (s, 0, stream_get_endp (s)); | |
953 | ||
719e9741 | 954 | return zebra_server_send_message(client); |
18a6dce6 | 955 | } |
6b0655a2 | 956 | |
718e3744 | 957 | /* Register zebra server interface information. Send current all |
958 | interface and address information. */ | |
719e9741 | 959 | static int |
718e3744 | 960 | zread_interface_add (struct zserv *client, u_short length) |
961 | { | |
1eb8ef25 | 962 | struct listnode *ifnode, *ifnnode; |
963 | struct listnode *cnode, *cnnode; | |
718e3744 | 964 | struct interface *ifp; |
965 | struct connected *c; | |
a80beece | 966 | struct nbr_connected *nc; |
718e3744 | 967 | |
968 | /* Interface information is needed. */ | |
969 | client->ifinfo = 1; | |
970 | ||
1eb8ef25 | 971 | for (ALL_LIST_ELEMENTS (iflist, ifnode, ifnnode, ifp)) |
718e3744 | 972 | { |
718e3744 | 973 | /* Skip pseudo interface. */ |
974 | if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
975 | continue; | |
976 | ||
719e9741 | 977 | if (zsend_interface_add (client, ifp) < 0) |
978 | return -1; | |
718e3744 | 979 | |
1eb8ef25 | 980 | for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, c)) |
718e3744 | 981 | { |
719e9741 | 982 | if (CHECK_FLAG (c->conf, ZEBRA_IFC_REAL) && |
983 | (zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
984 | ifp, c) < 0)) | |
985 | return -1; | |
718e3744 | 986 | } |
a80beece DS |
987 | for (ALL_LIST_ELEMENTS (ifp->nbr_connected, cnode, cnnode, nc)) |
988 | { | |
989 | if (zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, | |
990 | ifp, nc) < 0) | |
991 | return -1; | |
992 | } | |
993 | ||
718e3744 | 994 | } |
719e9741 | 995 | return 0; |
718e3744 | 996 | } |
997 | ||
998 | /* Unregister zebra server interface information. */ | |
719e9741 | 999 | static int |
718e3744 | 1000 | zread_interface_delete (struct zserv *client, u_short length) |
1001 | { | |
1002 | client->ifinfo = 0; | |
719e9741 | 1003 | return 0; |
718e3744 | 1004 | } |
1005 | ||
1006 | /* This function support multiple nexthop. */ | |
b9df2d25 | 1007 | /* |
1008 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update rib and | |
1009 | * add kernel route. | |
1010 | */ | |
719e9741 | 1011 | static int |
718e3744 | 1012 | zread_ipv4_add (struct zserv *client, u_short length) |
1013 | { | |
1014 | int i; | |
1015 | struct rib *rib; | |
1016 | struct prefix_ipv4 p; | |
1017 | u_char message; | |
1018 | struct in_addr nexthop; | |
1019 | u_char nexthop_num; | |
1020 | u_char nexthop_type; | |
1021 | struct stream *s; | |
1022 | unsigned int ifindex; | |
1023 | u_char ifname_len; | |
cddf391b | 1024 | safi_t safi; |
04b02fda | 1025 | int ret; |
718e3744 | 1026 | |
1027 | /* Get input stream. */ | |
1028 | s = client->ibuf; | |
1029 | ||
1030 | /* Allocate new rib. */ | |
4d38fdb4 | 1031 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); |
1032 | ||
718e3744 | 1033 | /* Type, flags, message. */ |
1034 | rib->type = stream_getc (s); | |
1035 | rib->flags = stream_getc (s); | |
b9df2d25 | 1036 | message = stream_getc (s); |
cddf391b | 1037 | safi = stream_getw (s); |
718e3744 | 1038 | rib->uptime = time (NULL); |
1039 | ||
1040 | /* IPv4 prefix. */ | |
1041 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1042 | p.family = AF_INET; | |
1043 | p.prefixlen = stream_getc (s); | |
1044 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1045 | ||
1046 | /* Nexthop parse. */ | |
1047 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1048 | { | |
1049 | nexthop_num = stream_getc (s); | |
1050 | ||
1051 | for (i = 0; i < nexthop_num; i++) | |
1052 | { | |
1053 | nexthop_type = stream_getc (s); | |
1054 | ||
1055 | switch (nexthop_type) | |
1056 | { | |
1057 | case ZEBRA_NEXTHOP_IFINDEX: | |
1058 | ifindex = stream_getl (s); | |
1059 | nexthop_ifindex_add (rib, ifindex); | |
1060 | break; | |
1061 | case ZEBRA_NEXTHOP_IFNAME: | |
1062 | ifname_len = stream_getc (s); | |
9985f83c | 1063 | stream_forward_getp (s, ifname_len); |
718e3744 | 1064 | break; |
1065 | case ZEBRA_NEXTHOP_IPV4: | |
1066 | nexthop.s_addr = stream_get_ipv4 (s); | |
7514fb77 | 1067 | nexthop_ipv4_add (rib, &nexthop, NULL); |
718e3744 | 1068 | break; |
c963c203 JT |
1069 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1070 | nexthop.s_addr = stream_get_ipv4 (s); | |
1071 | ifindex = stream_getl (s); | |
1072 | nexthop_ipv4_ifindex_add (rib, &nexthop, NULL, ifindex); | |
1073 | break; | |
718e3744 | 1074 | case ZEBRA_NEXTHOP_IPV6: |
9985f83c | 1075 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1076 | break; |
6902c69a SV |
1077 | case ZEBRA_NEXTHOP_BLACKHOLE: |
1078 | nexthop_blackhole_add (rib); | |
1079 | break; | |
c8a1cb5c DS |
1080 | case ZEBRA_NEXTHOP_IPV4_ONLINK: |
1081 | nexthop.s_addr = stream_get_ipv4 (s); | |
1082 | ifindex = stream_getl (s); | |
1083 | nexthop_ipv4_ifindex_ol_add (rib, &nexthop, NULL, ifindex); | |
1084 | break; | |
6902c69a | 1085 | } |
718e3744 | 1086 | } |
1087 | } | |
1088 | ||
1089 | /* Distance. */ | |
1090 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1091 | rib->distance = stream_getc (s); | |
1092 | ||
1093 | /* Metric. */ | |
1094 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1095 | rib->metric = stream_getl (s); | |
1096 | ||
0d9551dc DS |
1097 | /* Tag */ |
1098 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1099 | rib->tag = stream_getw (s); | |
1100 | else | |
1101 | rib->tag = 0; | |
1102 | ||
171eee31 PJ |
1103 | /* Table */ |
1104 | rib->table=zebrad.rtm_table_default; | |
04b02fda DS |
1105 | ret = rib_add_ipv4_multipath (&p, rib, safi); |
1106 | ||
1107 | /* Stats */ | |
1108 | if (ret > 0) | |
1109 | client->v4_route_add_cnt++; | |
1110 | else if (ret < 0) | |
1111 | client->v4_route_upd8_cnt++; | |
719e9741 | 1112 | return 0; |
718e3744 | 1113 | } |
1114 | ||
1115 | /* Zebra server IPv4 prefix delete function. */ | |
719e9741 | 1116 | static int |
718e3744 | 1117 | zread_ipv4_delete (struct zserv *client, u_short length) |
1118 | { | |
1119 | int i; | |
1120 | struct stream *s; | |
1121 | struct zapi_ipv4 api; | |
6902c69a | 1122 | struct in_addr nexthop, *nexthop_p; |
718e3744 | 1123 | unsigned long ifindex; |
1124 | struct prefix_ipv4 p; | |
1125 | u_char nexthop_num; | |
1126 | u_char nexthop_type; | |
1127 | u_char ifname_len; | |
1128 | ||
1129 | s = client->ibuf; | |
1130 | ifindex = 0; | |
1131 | nexthop.s_addr = 0; | |
6902c69a | 1132 | nexthop_p = NULL; |
718e3744 | 1133 | |
1134 | /* Type, flags, message. */ | |
1135 | api.type = stream_getc (s); | |
1136 | api.flags = stream_getc (s); | |
1137 | api.message = stream_getc (s); | |
cddf391b | 1138 | api.safi = stream_getw (s); |
718e3744 | 1139 | |
1140 | /* IPv4 prefix. */ | |
1141 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1142 | p.family = AF_INET; | |
1143 | p.prefixlen = stream_getc (s); | |
1144 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1145 | ||
1146 | /* Nexthop, ifindex, distance, metric. */ | |
1147 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1148 | { | |
1149 | nexthop_num = stream_getc (s); | |
1150 | ||
1151 | for (i = 0; i < nexthop_num; i++) | |
1152 | { | |
1153 | nexthop_type = stream_getc (s); | |
1154 | ||
1155 | switch (nexthop_type) | |
1156 | { | |
1157 | case ZEBRA_NEXTHOP_IFINDEX: | |
1158 | ifindex = stream_getl (s); | |
1159 | break; | |
1160 | case ZEBRA_NEXTHOP_IFNAME: | |
1161 | ifname_len = stream_getc (s); | |
9985f83c | 1162 | stream_forward_getp (s, ifname_len); |
718e3744 | 1163 | break; |
1164 | case ZEBRA_NEXTHOP_IPV4: | |
1165 | nexthop.s_addr = stream_get_ipv4 (s); | |
6902c69a | 1166 | nexthop_p = &nexthop; |
718e3744 | 1167 | break; |
c963c203 JT |
1168 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1169 | nexthop.s_addr = stream_get_ipv4 (s); | |
23f5f7c3 | 1170 | nexthop_p = &nexthop; |
c963c203 JT |
1171 | ifindex = stream_getl (s); |
1172 | break; | |
718e3744 | 1173 | case ZEBRA_NEXTHOP_IPV6: |
9985f83c | 1174 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1175 | break; |
1176 | } | |
1177 | } | |
1178 | } | |
1179 | ||
1180 | /* Distance. */ | |
1181 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1182 | api.distance = stream_getc (s); | |
1183 | else | |
1184 | api.distance = 0; | |
1185 | ||
1186 | /* Metric. */ | |
1187 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1188 | api.metric = stream_getl (s); | |
1189 | else | |
1190 | api.metric = 0; | |
1191 | ||
0d9551dc DS |
1192 | /* tag */ |
1193 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1194 | api.tag = stream_getw (s); | |
1195 | else | |
1196 | api.tag = 0; | |
1197 | ||
6902c69a | 1198 | rib_delete_ipv4 (api.type, api.flags, &p, nexthop_p, ifindex, |
cddf391b | 1199 | client->rtm_table, api.safi); |
04b02fda | 1200 | client->v4_route_del_cnt++; |
719e9741 | 1201 | return 0; |
718e3744 | 1202 | } |
1203 | ||
1204 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 1205 | static int |
718e3744 | 1206 | zread_ipv4_nexthop_lookup (struct zserv *client, u_short length) |
1207 | { | |
1208 | struct in_addr addr; | |
bb97e462 | 1209 | char buf[BUFSIZ]; |
718e3744 | 1210 | |
1211 | addr.s_addr = stream_get_ipv4 (client->ibuf); | |
bb97e462 CF |
1212 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
1213 | zlog_debug("%s: looking up %s", __func__, | |
1214 | inet_ntop (AF_INET, &addr, buf, BUFSIZ)); | |
719e9741 | 1215 | return zsend_ipv4_nexthop_lookup (client, addr); |
718e3744 | 1216 | } |
1217 | ||
1218 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 1219 | static int |
718e3744 | 1220 | zread_ipv4_import_lookup (struct zserv *client, u_short length) |
1221 | { | |
1222 | struct prefix_ipv4 p; | |
1223 | ||
1224 | p.family = AF_INET; | |
1225 | p.prefixlen = stream_getc (client->ibuf); | |
1226 | p.prefix.s_addr = stream_get_ipv4 (client->ibuf); | |
1227 | ||
719e9741 | 1228 | return zsend_ipv4_import_lookup (client, &p); |
718e3744 | 1229 | } |
1230 | ||
1231 | #ifdef HAVE_IPV6 | |
1232 | /* Zebra server IPv6 prefix add function. */ | |
719e9741 | 1233 | static int |
718e3744 | 1234 | zread_ipv6_add (struct zserv *client, u_short length) |
1235 | { | |
1236 | int i; | |
1237 | struct stream *s; | |
718e3744 | 1238 | struct in6_addr nexthop; |
41fc2714 DS |
1239 | struct rib *rib; |
1240 | u_char message; | |
1241 | u_char nexthop_num; | |
1242 | u_char nexthop_type; | |
718e3744 | 1243 | unsigned long ifindex; |
1244 | struct prefix_ipv6 p; | |
41fc2714 DS |
1245 | u_char ifname_len; |
1246 | safi_t safi; | |
1247 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1248 | static unsigned int ifindices[MULTIPATH_NUM]; | |
04b02fda | 1249 | int ret; |
41fc2714 DS |
1250 | |
1251 | /* Get input stream. */ | |
718e3744 | 1252 | s = client->ibuf; |
41fc2714 | 1253 | |
718e3744 | 1254 | ifindex = 0; |
1255 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1256 | ||
41fc2714 DS |
1257 | /* Allocate new rib. */ |
1258 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1259 | ||
718e3744 | 1260 | /* Type, flags, message. */ |
41fc2714 DS |
1261 | rib->type = stream_getc (s); |
1262 | rib->flags = stream_getc (s); | |
1263 | message = stream_getc (s); | |
1264 | safi = stream_getw (s); | |
1265 | rib->uptime = time (NULL); | |
718e3744 | 1266 | |
41fc2714 | 1267 | /* IPv6 prefix. */ |
718e3744 | 1268 | memset (&p, 0, sizeof (struct prefix_ipv6)); |
1269 | p.family = AF_INET6; | |
1270 | p.prefixlen = stream_getc (s); | |
1271 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1272 | ||
41fc2714 DS |
1273 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1274 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1275 | * these. Clients should send the same number of paired set of | |
1276 | * next-hop-addr/next-hop-ifindices. */ | |
1277 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
718e3744 | 1278 | { |
41fc2714 DS |
1279 | int nh_count = 0; |
1280 | int if_count = 0; | |
1281 | int max_nh_if = 0; | |
718e3744 | 1282 | |
41fc2714 DS |
1283 | nexthop_num = stream_getc (s); |
1284 | for (i = 0; i < nexthop_num; i++) | |
718e3744 | 1285 | { |
1286 | nexthop_type = stream_getc (s); | |
1287 | ||
1288 | switch (nexthop_type) | |
1289 | { | |
1290 | case ZEBRA_NEXTHOP_IPV6: | |
1291 | stream_get (&nexthop, s, 16); | |
41fc2714 DS |
1292 | if (nh_count < MULTIPATH_NUM) { |
1293 | nexthops[nh_count++] = nexthop; | |
1294 | } | |
718e3744 | 1295 | break; |
1296 | case ZEBRA_NEXTHOP_IFINDEX: | |
41fc2714 DS |
1297 | if (if_count < MULTIPATH_NUM) { |
1298 | ifindices[if_count++] = stream_getl (s); | |
1299 | } | |
718e3744 | 1300 | break; |
c3c0ac83 DS |
1301 | case ZEBRA_NEXTHOP_BLACKHOLE: |
1302 | nexthop_blackhole_add (rib); | |
1303 | break; | |
718e3744 | 1304 | } |
1305 | } | |
41fc2714 DS |
1306 | |
1307 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1308 | for (i = 0; i < max_nh_if; i++) | |
1309 | { | |
1310 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
1311 | if ((i < if_count) && ifindices[i]) { | |
1312 | if (rib_bogus_ipv6 (rib->type, &p, &nexthops[i], ifindices[i], 0)) { | |
1313 | continue; | |
1314 | } | |
1315 | nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); | |
1316 | } | |
1317 | else { | |
1318 | if (rib_bogus_ipv6 (rib->type, &p, &nexthops[i], 0, 0)) { | |
1319 | continue; | |
1320 | } | |
1321 | nexthop_ipv6_add (rib, &nexthops[i]); | |
1322 | } | |
1323 | } | |
1324 | else { | |
1325 | if ((i < if_count) && ifindices[i]) { | |
1326 | if (rib_bogus_ipv6 (rib->type, &p, NULL, ifindices[i], 0)) { | |
1327 | continue; | |
1328 | } | |
1329 | nexthop_ifindex_add (rib, ifindices[i]); | |
1330 | } | |
1331 | } | |
1332 | } | |
718e3744 | 1333 | } |
1334 | ||
41fc2714 DS |
1335 | /* Distance. */ |
1336 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1337 | rib->distance = stream_getc (s); | |
718e3744 | 1338 | |
41fc2714 DS |
1339 | /* Metric. */ |
1340 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1341 | rib->metric = stream_getl (s); | |
718e3744 | 1342 | |
0d9551dc DS |
1343 | /* Tag */ |
1344 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1345 | rib->tag = stream_getw (s); | |
1346 | else | |
1347 | rib->tag = 0; | |
1348 | ||
41fc2714 DS |
1349 | /* Table */ |
1350 | rib->table=zebrad.rtm_table_default; | |
04b02fda DS |
1351 | ret = rib_add_ipv6_multipath (&p, rib, safi, ifindex); |
1352 | /* Stats */ | |
1353 | if (ret > 0) | |
1354 | client->v6_route_add_cnt++; | |
1355 | else if (ret < 0) | |
1356 | client->v6_route_upd8_cnt++; | |
1357 | ||
719e9741 | 1358 | return 0; |
718e3744 | 1359 | } |
1360 | ||
1361 | /* Zebra server IPv6 prefix delete function. */ | |
719e9741 | 1362 | static int |
718e3744 | 1363 | zread_ipv6_delete (struct zserv *client, u_short length) |
1364 | { | |
1365 | int i; | |
1366 | struct stream *s; | |
1367 | struct zapi_ipv6 api; | |
1368 | struct in6_addr nexthop; | |
1369 | unsigned long ifindex; | |
1370 | struct prefix_ipv6 p; | |
1371 | ||
1372 | s = client->ibuf; | |
1373 | ifindex = 0; | |
1374 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1375 | ||
1376 | /* Type, flags, message. */ | |
1377 | api.type = stream_getc (s); | |
1378 | api.flags = stream_getc (s); | |
1379 | api.message = stream_getc (s); | |
f768f367 | 1380 | api.safi = stream_getw (s); |
718e3744 | 1381 | |
1382 | /* IPv4 prefix. */ | |
1383 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1384 | p.family = AF_INET6; | |
1385 | p.prefixlen = stream_getc (s); | |
1386 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1387 | ||
1388 | /* Nexthop, ifindex, distance, metric. */ | |
1389 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1390 | { | |
1391 | u_char nexthop_type; | |
1392 | ||
1393 | api.nexthop_num = stream_getc (s); | |
1394 | for (i = 0; i < api.nexthop_num; i++) | |
1395 | { | |
1396 | nexthop_type = stream_getc (s); | |
1397 | ||
1398 | switch (nexthop_type) | |
1399 | { | |
1400 | case ZEBRA_NEXTHOP_IPV6: | |
1401 | stream_get (&nexthop, s, 16); | |
1402 | break; | |
1403 | case ZEBRA_NEXTHOP_IFINDEX: | |
1404 | ifindex = stream_getl (s); | |
1405 | break; | |
1406 | } | |
1407 | } | |
1408 | } | |
1409 | ||
0d9551dc | 1410 | /* Distance. */ |
718e3744 | 1411 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) |
1412 | api.distance = stream_getc (s); | |
1413 | else | |
1414 | api.distance = 0; | |
0d9551dc DS |
1415 | |
1416 | /* Metric. */ | |
718e3744 | 1417 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) |
1418 | api.metric = stream_getl (s); | |
1419 | else | |
1420 | api.metric = 0; | |
1421 | ||
0d9551dc DS |
1422 | /* tag */ |
1423 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1424 | api.tag = stream_getw (s); | |
1425 | else | |
1426 | api.tag = 0; | |
1427 | ||
718e3744 | 1428 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) |
f768f367 | 1429 | rib_delete_ipv6 (api.type, api.flags, &p, NULL, ifindex, client->rtm_table, api.safi); |
718e3744 | 1430 | else |
f768f367 | 1431 | rib_delete_ipv6 (api.type, api.flags, &p, &nexthop, ifindex, client->rtm_table, api.safi); |
04b02fda DS |
1432 | |
1433 | client->v6_route_del_cnt++; | |
719e9741 | 1434 | return 0; |
718e3744 | 1435 | } |
1436 | ||
719e9741 | 1437 | static int |
718e3744 | 1438 | zread_ipv6_nexthop_lookup (struct zserv *client, u_short length) |
1439 | { | |
1440 | struct in6_addr addr; | |
1441 | char buf[BUFSIZ]; | |
1442 | ||
1443 | stream_get (&addr, client->ibuf, 16); | |
a5207089 CF |
1444 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
1445 | zlog_debug("%s: looking up %s", __func__, | |
1446 | inet_ntop (AF_INET6, &addr, buf, BUFSIZ)); | |
718e3744 | 1447 | |
719e9741 | 1448 | return zsend_ipv6_nexthop_lookup (client, &addr); |
718e3744 | 1449 | } |
1450 | #endif /* HAVE_IPV6 */ | |
1451 | ||
18a6dce6 | 1452 | /* Register zebra server router-id information. Send current router-id */ |
719e9741 | 1453 | static int |
18a6dce6 | 1454 | zread_router_id_add (struct zserv *client, u_short length) |
1455 | { | |
1456 | struct prefix p; | |
1457 | ||
1458 | /* Router-id information is needed. */ | |
1459 | client->ridinfo = 1; | |
1460 | ||
1461 | router_id_get (&p); | |
1462 | ||
719e9741 | 1463 | return zsend_router_id_update (client,&p); |
18a6dce6 | 1464 | } |
1465 | ||
1466 | /* Unregister zebra server router-id information. */ | |
719e9741 | 1467 | static int |
18a6dce6 | 1468 | zread_router_id_delete (struct zserv *client, u_short length) |
1469 | { | |
1470 | client->ridinfo = 0; | |
719e9741 | 1471 | return 0; |
18a6dce6 | 1472 | } |
1473 | ||
2ea1ab1c VT |
1474 | /* Tie up route-type and client->sock */ |
1475 | static void | |
1476 | zread_hello (struct zserv *client) | |
1477 | { | |
1478 | /* type of protocol (lib/zebra.h) */ | |
1479 | u_char proto; | |
1480 | proto = stream_getc (client->ibuf); | |
1481 | ||
1482 | /* accept only dynamic routing protocols */ | |
1483 | if ((proto < ZEBRA_ROUTE_MAX) | |
1484 | && (proto > ZEBRA_ROUTE_STATIC)) | |
1485 | { | |
1486 | zlog_notice ("client %d says hello and bids fair to announce only %s routes", | |
1487 | client->sock, zebra_route_string(proto)); | |
1488 | ||
1489 | /* if route-type was binded by other client */ | |
1490 | if (route_type_oaths[proto]) | |
1491 | zlog_warn ("sender of %s routes changed %c->%c", | |
1492 | zebra_route_string(proto), route_type_oaths[proto], | |
1493 | client->sock); | |
1494 | ||
1495 | route_type_oaths[proto] = client->sock; | |
fb018d25 | 1496 | client->proto = proto; |
2ea1ab1c VT |
1497 | } |
1498 | } | |
1499 | ||
1500 | /* If client sent routes of specific type, zebra removes it | |
1501 | * and returns number of deleted routes. | |
1502 | */ | |
1503 | static void | |
1504 | zebra_score_rib (int client_sock) | |
1505 | { | |
1506 | int i; | |
1507 | ||
1508 | for (i = ZEBRA_ROUTE_RIP; i < ZEBRA_ROUTE_MAX; i++) | |
1509 | if (client_sock == route_type_oaths[i]) | |
1510 | { | |
1511 | zlog_notice ("client %d disconnected. %lu %s routes removed from the rib", | |
1512 | client_sock, rib_score_proto (i), zebra_route_string (i)); | |
1513 | route_type_oaths[i] = 0; | |
1514 | break; | |
1515 | } | |
1516 | } | |
1517 | ||
718e3744 | 1518 | /* Close zebra client. */ |
b9df2d25 | 1519 | static void |
718e3744 | 1520 | zebra_client_close (struct zserv *client) |
1521 | { | |
fb018d25 DS |
1522 | zebra_cleanup_rnh_client(0, AF_INET, client); |
1523 | zebra_cleanup_rnh_client(0, AF_INET6, client); | |
1524 | ||
718e3744 | 1525 | /* Close file descriptor. */ |
1526 | if (client->sock) | |
1527 | { | |
1528 | close (client->sock); | |
2ea1ab1c | 1529 | zebra_score_rib (client->sock); |
718e3744 | 1530 | client->sock = -1; |
1531 | } | |
1532 | ||
1533 | /* Free stream buffers. */ | |
1534 | if (client->ibuf) | |
1535 | stream_free (client->ibuf); | |
1536 | if (client->obuf) | |
1537 | stream_free (client->obuf); | |
719e9741 | 1538 | if (client->wb) |
1539 | buffer_free(client->wb); | |
718e3744 | 1540 | |
1541 | /* Release threads. */ | |
1542 | if (client->t_read) | |
1543 | thread_cancel (client->t_read); | |
1544 | if (client->t_write) | |
1545 | thread_cancel (client->t_write); | |
719e9741 | 1546 | if (client->t_suicide) |
1547 | thread_cancel (client->t_suicide); | |
718e3744 | 1548 | |
1549 | /* Free client structure. */ | |
b21b19c5 | 1550 | listnode_delete (zebrad.client_list, client); |
718e3744 | 1551 | XFREE (0, client); |
1552 | } | |
1553 | ||
1554 | /* Make new client. */ | |
b9df2d25 | 1555 | static void |
718e3744 | 1556 | zebra_client_create (int sock) |
1557 | { | |
1558 | struct zserv *client; | |
1559 | ||
1560 | client = XCALLOC (0, sizeof (struct zserv)); | |
1561 | ||
1562 | /* Make client input/output buffer. */ | |
1563 | client->sock = sock; | |
1564 | client->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
1565 | client->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
719e9741 | 1566 | client->wb = buffer_new(0); |
718e3744 | 1567 | |
1568 | /* Set table number. */ | |
b21b19c5 | 1569 | client->rtm_table = zebrad.rtm_table_default; |
718e3744 | 1570 | |
04b02fda DS |
1571 | client->connect_time = quagga_time(NULL); |
1572 | ||
718e3744 | 1573 | /* Add this client to linked list. */ |
b21b19c5 | 1574 | listnode_add (zebrad.client_list, client); |
718e3744 | 1575 | |
1576 | /* Make new read thread. */ | |
1577 | zebra_event (ZEBRA_READ, sock, client); | |
1578 | } | |
1579 | ||
1580 | /* Handler of zebra service request. */ | |
b9df2d25 | 1581 | static int |
718e3744 | 1582 | zebra_client_read (struct thread *thread) |
1583 | { | |
1584 | int sock; | |
1585 | struct zserv *client; | |
57a1477b | 1586 | size_t already; |
c1b9800a | 1587 | uint16_t length, command; |
1588 | uint8_t marker, version; | |
718e3744 | 1589 | |
1590 | /* Get thread data. Reset reading thread because I'm running. */ | |
1591 | sock = THREAD_FD (thread); | |
1592 | client = THREAD_ARG (thread); | |
1593 | client->t_read = NULL; | |
1594 | ||
719e9741 | 1595 | if (client->t_suicide) |
718e3744 | 1596 | { |
719e9741 | 1597 | zebra_client_close(client); |
718e3744 | 1598 | return -1; |
1599 | } | |
719e9741 | 1600 | |
1601 | /* Read length and command (if we don't have it already). */ | |
57a1477b | 1602 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) |
719e9741 | 1603 | { |
57a1477b | 1604 | ssize_t nbyte; |
719e9741 | 1605 | if (((nbyte = stream_read_try (client->ibuf, sock, |
57a1477b | 1606 | ZEBRA_HEADER_SIZE-already)) == 0) || |
719e9741 | 1607 | (nbyte == -1)) |
1608 | { | |
1609 | if (IS_ZEBRA_DEBUG_EVENT) | |
1610 | zlog_debug ("connection closed socket [%d]", sock); | |
1611 | zebra_client_close (client); | |
1612 | return -1; | |
1613 | } | |
57a1477b | 1614 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE-already)) |
719e9741 | 1615 | { |
1616 | /* Try again later. */ | |
1617 | zebra_event (ZEBRA_READ, sock, client); | |
1618 | return 0; | |
1619 | } | |
57a1477b | 1620 | already = ZEBRA_HEADER_SIZE; |
719e9741 | 1621 | } |
1622 | ||
1623 | /* Reset to read from the beginning of the incoming packet. */ | |
1624 | stream_set_getp(client->ibuf, 0); | |
1625 | ||
c1b9800a | 1626 | /* Fetch header values */ |
718e3744 | 1627 | length = stream_getw (client->ibuf); |
c1b9800a | 1628 | marker = stream_getc (client->ibuf); |
1629 | version = stream_getc (client->ibuf); | |
1630 | command = stream_getw (client->ibuf); | |
718e3744 | 1631 | |
c1b9800a | 1632 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) |
1633 | { | |
1634 | zlog_err("%s: socket %d version mismatch, marker %d, version %d", | |
1635 | __func__, sock, marker, version); | |
1636 | zebra_client_close (client); | |
1637 | return -1; | |
1638 | } | |
719e9741 | 1639 | if (length < ZEBRA_HEADER_SIZE) |
718e3744 | 1640 | { |
57a1477b | 1641 | zlog_warn("%s: socket %d message length %u is less than header size %d", |
1642 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
1643 | zebra_client_close (client); | |
1644 | return -1; | |
1645 | } | |
1646 | if (length > STREAM_SIZE(client->ibuf)) | |
1647 | { | |
1648 | zlog_warn("%s: socket %d message length %u exceeds buffer size %lu", | |
1649 | __func__, sock, length, (u_long)STREAM_SIZE(client->ibuf)); | |
718e3744 | 1650 | zebra_client_close (client); |
1651 | return -1; | |
1652 | } | |
1653 | ||
718e3744 | 1654 | /* Read rest of data. */ |
57a1477b | 1655 | if (already < length) |
718e3744 | 1656 | { |
57a1477b | 1657 | ssize_t nbyte; |
1658 | if (((nbyte = stream_read_try (client->ibuf, sock, | |
1659 | length-already)) == 0) || | |
1660 | (nbyte == -1)) | |
718e3744 | 1661 | { |
1662 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1663 | zlog_debug ("connection closed [%d] when reading zebra data", sock); |
718e3744 | 1664 | zebra_client_close (client); |
1665 | return -1; | |
1666 | } | |
57a1477b | 1667 | if (nbyte != (ssize_t)(length-already)) |
719e9741 | 1668 | { |
1669 | /* Try again later. */ | |
1670 | zebra_event (ZEBRA_READ, sock, client); | |
1671 | return 0; | |
1672 | } | |
718e3744 | 1673 | } |
1674 | ||
719e9741 | 1675 | length -= ZEBRA_HEADER_SIZE; |
1676 | ||
718e3744 | 1677 | /* Debug packet information. */ |
1678 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1679 | zlog_debug ("zebra message comes from socket [%d]", sock); |
718e3744 | 1680 | |
1681 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
b6178002 | 1682 | zlog_debug ("zebra message received [%s] %d", |
66859780 | 1683 | zserv_command_string (command), length); |
718e3744 | 1684 | |
04b02fda DS |
1685 | client->last_read_time = quagga_time(NULL); |
1686 | client->last_read_cmd = command; | |
1687 | ||
718e3744 | 1688 | switch (command) |
1689 | { | |
18a6dce6 | 1690 | case ZEBRA_ROUTER_ID_ADD: |
1691 | zread_router_id_add (client, length); | |
1692 | break; | |
1693 | case ZEBRA_ROUTER_ID_DELETE: | |
1694 | zread_router_id_delete (client, length); | |
1695 | break; | |
718e3744 | 1696 | case ZEBRA_INTERFACE_ADD: |
1697 | zread_interface_add (client, length); | |
1698 | break; | |
1699 | case ZEBRA_INTERFACE_DELETE: | |
1700 | zread_interface_delete (client, length); | |
1701 | break; | |
1702 | case ZEBRA_IPV4_ROUTE_ADD: | |
1703 | zread_ipv4_add (client, length); | |
1704 | break; | |
1705 | case ZEBRA_IPV4_ROUTE_DELETE: | |
1706 | zread_ipv4_delete (client, length); | |
1707 | break; | |
1708 | #ifdef HAVE_IPV6 | |
1709 | case ZEBRA_IPV6_ROUTE_ADD: | |
1710 | zread_ipv6_add (client, length); | |
1711 | break; | |
1712 | case ZEBRA_IPV6_ROUTE_DELETE: | |
1713 | zread_ipv6_delete (client, length); | |
1714 | break; | |
1715 | #endif /* HAVE_IPV6 */ | |
1716 | case ZEBRA_REDISTRIBUTE_ADD: | |
1717 | zebra_redistribute_add (command, client, length); | |
1718 | break; | |
1719 | case ZEBRA_REDISTRIBUTE_DELETE: | |
1720 | zebra_redistribute_delete (command, client, length); | |
1721 | break; | |
1722 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
1723 | zebra_redistribute_default_add (command, client, length); | |
1724 | break; | |
1725 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
1726 | zebra_redistribute_default_delete (command, client, length); | |
1727 | break; | |
1728 | case ZEBRA_IPV4_NEXTHOP_LOOKUP: | |
1729 | zread_ipv4_nexthop_lookup (client, length); | |
1730 | break; | |
1731 | #ifdef HAVE_IPV6 | |
1732 | case ZEBRA_IPV6_NEXTHOP_LOOKUP: | |
1733 | zread_ipv6_nexthop_lookup (client, length); | |
1734 | break; | |
1735 | #endif /* HAVE_IPV6 */ | |
1736 | case ZEBRA_IPV4_IMPORT_LOOKUP: | |
1737 | zread_ipv4_import_lookup (client, length); | |
1738 | break; | |
2ea1ab1c VT |
1739 | case ZEBRA_HELLO: |
1740 | zread_hello (client); | |
1741 | break; | |
fb018d25 DS |
1742 | case ZEBRA_NEXTHOP_REGISTER: |
1743 | zserv_nexthop_register(client, sock, length); | |
1744 | break; | |
1745 | case ZEBRA_NEXTHOP_UNREGISTER: | |
1746 | zserv_nexthop_unregister(client, sock, length); | |
1747 | break; | |
718e3744 | 1748 | default: |
1749 | zlog_info ("Zebra received unknown command %d", command); | |
1750 | break; | |
1751 | } | |
1752 | ||
719e9741 | 1753 | if (client->t_suicide) |
1754 | { | |
1755 | /* No need to wait for thread callback, just kill immediately. */ | |
1756 | zebra_client_close(client); | |
1757 | return -1; | |
1758 | } | |
1759 | ||
718e3744 | 1760 | stream_reset (client->ibuf); |
1761 | zebra_event (ZEBRA_READ, sock, client); | |
718e3744 | 1762 | return 0; |
1763 | } | |
1764 | ||
718e3744 | 1765 | |
1766 | /* Accept code of zebra server socket. */ | |
b9df2d25 | 1767 | static int |
718e3744 | 1768 | zebra_accept (struct thread *thread) |
1769 | { | |
1770 | int accept_sock; | |
1771 | int client_sock; | |
1772 | struct sockaddr_in client; | |
1773 | socklen_t len; | |
1774 | ||
1775 | accept_sock = THREAD_FD (thread); | |
1776 | ||
719e9741 | 1777 | /* Reregister myself. */ |
1778 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1779 | ||
718e3744 | 1780 | len = sizeof (struct sockaddr_in); |
1781 | client_sock = accept (accept_sock, (struct sockaddr *) &client, &len); | |
1782 | ||
1783 | if (client_sock < 0) | |
1784 | { | |
6099b3b5 | 1785 | zlog_warn ("Can't accept zebra socket: %s", safe_strerror (errno)); |
718e3744 | 1786 | return -1; |
1787 | } | |
1788 | ||
ccf3557b | 1789 | /* Make client socket non-blocking. */ |
719e9741 | 1790 | set_nonblocking(client_sock); |
865b852c | 1791 | |
718e3744 | 1792 | /* Create new zebra client. */ |
1793 | zebra_client_create (client_sock); | |
1794 | ||
718e3744 | 1795 | return 0; |
1796 | } | |
1797 | ||
b9df2d25 | 1798 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 1799 | /* Make zebra's server socket. */ |
b9df2d25 | 1800 | static void |
718e3744 | 1801 | zebra_serv () |
1802 | { | |
1803 | int ret; | |
1804 | int accept_sock; | |
1805 | struct sockaddr_in addr; | |
1806 | ||
1807 | accept_sock = socket (AF_INET, SOCK_STREAM, 0); | |
1808 | ||
1809 | if (accept_sock < 0) | |
1810 | { | |
3d1dc857 | 1811 | zlog_warn ("Can't create zserv stream socket: %s", |
1812 | safe_strerror (errno)); | |
718e3744 | 1813 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1814 | return; | |
1815 | } | |
1816 | ||
2ea1ab1c | 1817 | memset (&route_type_oaths, 0, sizeof (route_type_oaths)); |
718e3744 | 1818 | memset (&addr, 0, sizeof (struct sockaddr_in)); |
1819 | addr.sin_family = AF_INET; | |
1820 | addr.sin_port = htons (ZEBRA_PORT); | |
6f0e3f6e | 1821 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 1822 | addr.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 1823 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 1824 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
1825 | ||
1826 | sockopt_reuseaddr (accept_sock); | |
1827 | sockopt_reuseport (accept_sock); | |
1828 | ||
edd7c245 | 1829 | if ( zserv_privs.change(ZPRIVS_RAISE) ) |
1830 | zlog (NULL, LOG_ERR, "Can't raise privileges"); | |
1831 | ||
718e3744 | 1832 | ret = bind (accept_sock, (struct sockaddr *)&addr, |
1833 | sizeof (struct sockaddr_in)); | |
1834 | if (ret < 0) | |
1835 | { | |
3d1dc857 | 1836 | zlog_warn ("Can't bind to stream socket: %s", |
1837 | safe_strerror (errno)); | |
718e3744 | 1838 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1839 | close (accept_sock); /* Avoid sd leak. */ | |
1840 | return; | |
1841 | } | |
edd7c245 | 1842 | |
1843 | if ( zserv_privs.change(ZPRIVS_LOWER) ) | |
1844 | zlog (NULL, LOG_ERR, "Can't lower privileges"); | |
718e3744 | 1845 | |
1846 | ret = listen (accept_sock, 1); | |
1847 | if (ret < 0) | |
1848 | { | |
3d1dc857 | 1849 | zlog_warn ("Can't listen to stream socket: %s", |
1850 | safe_strerror (errno)); | |
718e3744 | 1851 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1852 | close (accept_sock); /* Avoid sd leak. */ | |
1853 | return; | |
1854 | } | |
1855 | ||
1856 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1857 | } | |
b9df2d25 | 1858 | #endif /* HAVE_TCP_ZEBRA */ |
718e3744 | 1859 | |
1860 | /* For sockaddr_un. */ | |
1861 | #include <sys/un.h> | |
1862 | ||
1863 | /* zebra server UNIX domain socket. */ | |
b9df2d25 | 1864 | static void |
fce954f8 | 1865 | zebra_serv_un (const char *path) |
718e3744 | 1866 | { |
1867 | int ret; | |
1868 | int sock, len; | |
1869 | struct sockaddr_un serv; | |
1870 | mode_t old_mask; | |
1871 | ||
1872 | /* First of all, unlink existing socket */ | |
1873 | unlink (path); | |
1874 | ||
1875 | /* Set umask */ | |
1876 | old_mask = umask (0077); | |
1877 | ||
1878 | /* Make UNIX domain socket. */ | |
1879 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
1880 | if (sock < 0) | |
1881 | { | |
3d1dc857 | 1882 | zlog_warn ("Can't create zserv unix socket: %s", |
1883 | safe_strerror (errno)); | |
1884 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1885 | return; |
1886 | } | |
1887 | ||
2ea1ab1c VT |
1888 | memset (&route_type_oaths, 0, sizeof (route_type_oaths)); |
1889 | ||
718e3744 | 1890 | /* Make server socket. */ |
1891 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
1892 | serv.sun_family = AF_UNIX; | |
1893 | strncpy (serv.sun_path, path, strlen (path)); | |
6f0e3f6e | 1894 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 1895 | len = serv.sun_len = SUN_LEN(&serv); |
1896 | #else | |
1897 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 1898 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 1899 | |
1900 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
1901 | if (ret < 0) | |
1902 | { | |
3d1dc857 | 1903 | zlog_warn ("Can't bind to unix socket %s: %s", |
1904 | path, safe_strerror (errno)); | |
1905 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1906 | close (sock); |
1907 | return; | |
1908 | } | |
1909 | ||
1910 | ret = listen (sock, 5); | |
1911 | if (ret < 0) | |
1912 | { | |
3d1dc857 | 1913 | zlog_warn ("Can't listen to unix socket %s: %s", |
1914 | path, safe_strerror (errno)); | |
1915 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1916 | close (sock); |
1917 | return; | |
1918 | } | |
1919 | ||
1920 | umask (old_mask); | |
1921 | ||
1922 | zebra_event (ZEBRA_SERV, sock, NULL); | |
1923 | } | |
6b0655a2 | 1924 | |
718e3744 | 1925 | |
b9df2d25 | 1926 | static void |
718e3744 | 1927 | zebra_event (enum event event, int sock, struct zserv *client) |
1928 | { | |
1929 | switch (event) | |
1930 | { | |
1931 | case ZEBRA_SERV: | |
b21b19c5 | 1932 | thread_add_read (zebrad.master, zebra_accept, client, sock); |
718e3744 | 1933 | break; |
1934 | case ZEBRA_READ: | |
1935 | client->t_read = | |
b21b19c5 | 1936 | thread_add_read (zebrad.master, zebra_client_read, client, sock); |
718e3744 | 1937 | break; |
1938 | case ZEBRA_WRITE: | |
1939 | /**/ | |
1940 | break; | |
1941 | } | |
1942 | } | |
6b0655a2 | 1943 | |
04b02fda DS |
1944 | #define ZEBRA_TIME_BUF 32 |
1945 | static char * | |
1946 | zserv_time_buf(time_t *time1, char *buf, int buflen) | |
1947 | { | |
1948 | struct tm *tm; | |
1949 | time_t now; | |
1950 | ||
1951 | assert (buf != NULL); | |
1952 | assert (buflen >= ZEBRA_TIME_BUF); | |
1953 | assert (time1 != NULL); | |
1954 | ||
1955 | if (!*time1) | |
1956 | { | |
1957 | snprintf(buf, buflen, "never "); | |
1958 | return (buf); | |
1959 | } | |
1960 | ||
1961 | now = quagga_time(NULL); | |
1962 | now -= *time1; | |
1963 | tm = gmtime(&now); | |
1964 | ||
1965 | /* Making formatted timer strings. */ | |
1966 | #define ONE_DAY_SECOND 60*60*24 | |
1967 | #define ONE_WEEK_SECOND 60*60*24*7 | |
1968 | ||
1969 | if (now < ONE_DAY_SECOND) | |
1970 | snprintf (buf, buflen, "%02d:%02d:%02d", | |
1971 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
1972 | else if (now < ONE_WEEK_SECOND) | |
1973 | snprintf (buf, buflen, "%dd%02dh%02dm", | |
1974 | tm->tm_yday, tm->tm_hour, tm->tm_min); | |
1975 | else | |
1976 | snprintf (buf, buflen, "%02dw%dd%02dh", | |
1977 | tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); | |
1978 | return buf; | |
1979 | } | |
1980 | ||
1981 | static void | |
1982 | zebra_show_client_detail (struct vty *vty, struct zserv *client) | |
1983 | { | |
1984 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
1985 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
1986 | ||
1987 | vty_out (vty, "Client: %s %s", | |
1988 | zebra_route_string(client->proto), VTY_NEWLINE); | |
1989 | vty_out (vty, "------------------------ %s", VTY_NEWLINE); | |
1990 | vty_out (vty, "FD: %d %s", client->sock, VTY_NEWLINE); | |
1991 | vty_out (vty, "Route Table ID: %d %s", client->rtm_table, VTY_NEWLINE); | |
1992 | ||
1993 | vty_out (vty, "Connect Time: %s %s", | |
1994 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
1995 | VTY_NEWLINE); | |
1996 | if (client->nh_reg_time) | |
1997 | { | |
1998 | vty_out (vty, "Nexthop Registry Time: %s %s", | |
1999 | zserv_time_buf(&client->nh_reg_time, nhbuf, ZEBRA_TIME_BUF), | |
2000 | VTY_NEWLINE); | |
2001 | if (client->nh_last_upd_time) | |
2002 | vty_out (vty, "Nexthop Last Update Time: %s %s", | |
2003 | zserv_time_buf(&client->nh_last_upd_time, mbuf, ZEBRA_TIME_BUF), | |
2004 | VTY_NEWLINE); | |
2005 | else | |
2006 | vty_out (vty, "No Nexthop Update sent%s", VTY_NEWLINE); | |
2007 | } | |
2008 | else | |
2009 | vty_out (vty, "Not registered for Nexthop Updates%s", VTY_NEWLINE); | |
2010 | ||
2011 | vty_out (vty, "Last Msg Rx Time: %s %s", | |
2012 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2013 | VTY_NEWLINE); | |
2014 | vty_out (vty, "Last Msg Tx Time: %s %s", | |
2015 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2016 | VTY_NEWLINE); | |
2017 | if (client->last_read_time) | |
2018 | vty_out (vty, "Last Rcvd Cmd: %s %s", | |
2019 | zserv_command_string(client->last_read_cmd), VTY_NEWLINE); | |
2020 | if (client->last_write_time) | |
2021 | vty_out (vty, "Last Sent Cmd: %s %s", | |
2022 | zserv_command_string(client->last_write_cmd), VTY_NEWLINE); | |
2023 | vty_out (vty, "%s", VTY_NEWLINE); | |
2024 | ||
2025 | vty_out (vty, "Type Add Update Del %s", VTY_NEWLINE); | |
2026 | vty_out (vty, "================================================== %s", VTY_NEWLINE); | |
2027 | vty_out (vty, "IPv4 %-12d%-12d%-12d%s", client->v4_route_add_cnt, | |
2028 | client->v4_route_upd8_cnt, client->v4_route_del_cnt, VTY_NEWLINE); | |
2029 | vty_out (vty, "IPv6 %-12d%-12d%-12d%s", client->v6_route_add_cnt, | |
2030 | client->v6_route_upd8_cnt, client->v6_route_del_cnt, VTY_NEWLINE); | |
2031 | vty_out (vty, "Redist:v4 %-12d%-12d%-12d%s", client->redist_v4_add_cnt, 0, | |
2032 | client->redist_v4_del_cnt, VTY_NEWLINE); | |
2033 | vty_out (vty, "Redist:v6 %-12d%-12d%-12d%s", client->redist_v6_add_cnt, 0, | |
2034 | client->redist_v6_del_cnt, VTY_NEWLINE); | |
2035 | vty_out (vty, "Connected %-12d%-12d%-12d%s", client->ifadd_cnt, 0, | |
2036 | client->ifdel_cnt, VTY_NEWLINE); | |
2037 | vty_out (vty, "Interface Up Notifications: %d%s", client->ifup_cnt, | |
2038 | VTY_NEWLINE); | |
2039 | vty_out (vty, "Interface Down Notifications: %d%s", client->ifdown_cnt, | |
2040 | VTY_NEWLINE); | |
2041 | ||
2042 | vty_out (vty, "%s", VTY_NEWLINE); | |
2043 | return; | |
2044 | } | |
2045 | ||
2046 | static void | |
2047 | zebra_show_client_brief (struct vty *vty, struct zserv *client) | |
2048 | { | |
2049 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2050 | char wbuf[ZEBRA_TIME_BUF]; | |
2051 | ||
2052 | vty_out (vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d%s", | |
2053 | zebra_route_string(client->proto), | |
2054 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2055 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2056 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2057 | client->v4_route_add_cnt+client->v4_route_upd8_cnt, | |
2058 | client->v4_route_del_cnt, | |
2059 | client->v6_route_add_cnt+client->v6_route_upd8_cnt, | |
2060 | client->v6_route_del_cnt, VTY_NEWLINE); | |
2061 | ||
2062 | } | |
2063 | ||
2064 | ||
718e3744 | 2065 | /* Display default rtm_table for all clients. */ |
2066 | DEFUN (show_table, | |
2067 | show_table_cmd, | |
2068 | "show table", | |
2069 | SHOW_STR | |
2070 | "default routing table to use for all clients\n") | |
2071 | { | |
b21b19c5 | 2072 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, |
718e3744 | 2073 | VTY_NEWLINE); |
2074 | return CMD_SUCCESS; | |
2075 | } | |
2076 | ||
2077 | DEFUN (config_table, | |
2078 | config_table_cmd, | |
2079 | "table TABLENO", | |
2080 | "Configure target kernel routing table\n" | |
2081 | "TABLE integer\n") | |
2082 | { | |
b21b19c5 | 2083 | zebrad.rtm_table_default = strtol (argv[0], (char**)0, 10); |
718e3744 | 2084 | return CMD_SUCCESS; |
2085 | } | |
2086 | ||
647e4f1f | 2087 | DEFUN (ip_forwarding, |
2088 | ip_forwarding_cmd, | |
2089 | "ip forwarding", | |
2090 | IP_STR | |
2091 | "Turn on IP forwarding") | |
2092 | { | |
2093 | int ret; | |
2094 | ||
2095 | ret = ipforward (); | |
b71f00f2 | 2096 | if (ret == 0) |
2097 | ret = ipforward_on (); | |
647e4f1f | 2098 | |
647e4f1f | 2099 | if (ret == 0) |
2100 | { | |
2101 | vty_out (vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
2102 | return CMD_WARNING; | |
2103 | } | |
2104 | ||
2105 | return CMD_SUCCESS; | |
2106 | } | |
2107 | ||
718e3744 | 2108 | DEFUN (no_ip_forwarding, |
2109 | no_ip_forwarding_cmd, | |
2110 | "no ip forwarding", | |
2111 | NO_STR | |
2112 | IP_STR | |
2113 | "Turn off IP forwarding") | |
2114 | { | |
2115 | int ret; | |
2116 | ||
2117 | ret = ipforward (); | |
b71f00f2 | 2118 | if (ret != 0) |
2119 | ret = ipforward_off (); | |
718e3744 | 2120 | |
718e3744 | 2121 | if (ret != 0) |
2122 | { | |
2123 | vty_out (vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
2124 | return CMD_WARNING; | |
2125 | } | |
2126 | ||
2127 | return CMD_SUCCESS; | |
2128 | } | |
2129 | ||
2130 | /* This command is for debugging purpose. */ | |
2131 | DEFUN (show_zebra_client, | |
2132 | show_zebra_client_cmd, | |
2133 | "show zebra client", | |
2134 | SHOW_STR | |
2135 | "Zebra information" | |
2136 | "Client information") | |
2137 | { | |
52dc7ee6 | 2138 | struct listnode *node; |
718e3744 | 2139 | struct zserv *client; |
2140 | ||
1eb8ef25 | 2141 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) |
04b02fda DS |
2142 | zebra_show_client_detail(vty, client); |
2143 | ||
2144 | return CMD_SUCCESS; | |
2145 | } | |
2146 | ||
2147 | /* This command is for debugging purpose. */ | |
2148 | DEFUN (show_zebra_client_summary, | |
2149 | show_zebra_client_summary_cmd, | |
2150 | "show zebra client summary", | |
2151 | SHOW_STR | |
2152 | "Zebra information brief" | |
2153 | "Client information brief") | |
2154 | { | |
2155 | struct listnode *node; | |
2156 | struct zserv *client; | |
2157 | ||
2158 | vty_out (vty, "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes %s", | |
2159 | VTY_NEWLINE); | |
2160 | vty_out (vty,"--------------------------------------------------------------------------------%s", | |
2161 | VTY_NEWLINE); | |
2162 | ||
2163 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) | |
2164 | zebra_show_client_brief(vty, client); | |
fb018d25 | 2165 | |
04b02fda | 2166 | vty_out (vty, "Routes column shows (added+updated)/deleted%s", VTY_NEWLINE); |
718e3744 | 2167 | return CMD_SUCCESS; |
2168 | } | |
2169 | ||
2170 | /* Table configuration write function. */ | |
b9df2d25 | 2171 | static int |
718e3744 | 2172 | config_write_table (struct vty *vty) |
2173 | { | |
b21b19c5 | 2174 | if (zebrad.rtm_table_default) |
2175 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, | |
718e3744 | 2176 | VTY_NEWLINE); |
2177 | return 0; | |
2178 | } | |
2179 | ||
2180 | /* table node for routing tables. */ | |
7fc626de | 2181 | static struct cmd_node table_node = |
718e3744 | 2182 | { |
2183 | TABLE_NODE, | |
2184 | "", /* This node has no interface. */ | |
2185 | 1 | |
2186 | }; | |
6b0655a2 | 2187 | |
718e3744 | 2188 | /* Only display ip forwarding is enabled or not. */ |
2189 | DEFUN (show_ip_forwarding, | |
2190 | show_ip_forwarding_cmd, | |
2191 | "show ip forwarding", | |
2192 | SHOW_STR | |
2193 | IP_STR | |
2194 | "IP forwarding status\n") | |
2195 | { | |
2196 | int ret; | |
2197 | ||
2198 | ret = ipforward (); | |
2199 | ||
2200 | if (ret == 0) | |
2201 | vty_out (vty, "IP forwarding is off%s", VTY_NEWLINE); | |
2202 | else | |
2203 | vty_out (vty, "IP forwarding is on%s", VTY_NEWLINE); | |
2204 | return CMD_SUCCESS; | |
2205 | } | |
2206 | ||
2207 | #ifdef HAVE_IPV6 | |
2208 | /* Only display ipv6 forwarding is enabled or not. */ | |
2209 | DEFUN (show_ipv6_forwarding, | |
2210 | show_ipv6_forwarding_cmd, | |
2211 | "show ipv6 forwarding", | |
2212 | SHOW_STR | |
2213 | "IPv6 information\n" | |
2214 | "Forwarding status\n") | |
2215 | { | |
2216 | int ret; | |
2217 | ||
2218 | ret = ipforward_ipv6 (); | |
2219 | ||
2220 | switch (ret) | |
2221 | { | |
2222 | case -1: | |
2223 | vty_out (vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
2224 | break; | |
2225 | case 0: | |
2226 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2227 | break; | |
2228 | case 1: | |
2229 | vty_out (vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
2230 | break; | |
2231 | default: | |
2232 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2233 | break; | |
2234 | } | |
2235 | return CMD_SUCCESS; | |
2236 | } | |
2237 | ||
55906724 | 2238 | DEFUN (ipv6_forwarding, |
2239 | ipv6_forwarding_cmd, | |
2240 | "ipv6 forwarding", | |
2241 | IPV6_STR | |
2242 | "Turn on IPv6 forwarding") | |
2243 | { | |
2244 | int ret; | |
2245 | ||
41d3fc96 | 2246 | ret = ipforward_ipv6 (); |
b71f00f2 | 2247 | if (ret == 0) |
2248 | ret = ipforward_ipv6_on (); | |
41d3fc96 | 2249 | |
41d3fc96 | 2250 | if (ret == 0) |
55906724 | 2251 | { |
2252 | vty_out (vty, "Can't turn on IPv6 forwarding%s", VTY_NEWLINE); | |
2253 | return CMD_WARNING; | |
2254 | } | |
2255 | ||
2256 | return CMD_SUCCESS; | |
2257 | } | |
2258 | ||
718e3744 | 2259 | DEFUN (no_ipv6_forwarding, |
2260 | no_ipv6_forwarding_cmd, | |
2261 | "no ipv6 forwarding", | |
2262 | NO_STR | |
55906724 | 2263 | IPV6_STR |
2264 | "Turn off IPv6 forwarding") | |
718e3744 | 2265 | { |
2266 | int ret; | |
2267 | ||
41d3fc96 | 2268 | ret = ipforward_ipv6 (); |
b71f00f2 | 2269 | if (ret != 0) |
2270 | ret = ipforward_ipv6_off (); | |
41d3fc96 | 2271 | |
718e3744 | 2272 | if (ret != 0) |
2273 | { | |
2274 | vty_out (vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
2275 | return CMD_WARNING; | |
2276 | } | |
2277 | ||
2278 | return CMD_SUCCESS; | |
2279 | } | |
2280 | ||
2281 | #endif /* HAVE_IPV6 */ | |
2282 | ||
2283 | /* IPForwarding configuration write function. */ | |
719e9741 | 2284 | static int |
718e3744 | 2285 | config_write_forwarding (struct vty *vty) |
2286 | { | |
18a6dce6 | 2287 | /* FIXME: Find better place for that. */ |
2288 | router_id_write (vty); | |
2289 | ||
3e0b3a56 | 2290 | if (ipforward ()) |
2291 | vty_out (vty, "ip forwarding%s", VTY_NEWLINE); | |
718e3744 | 2292 | #ifdef HAVE_IPV6 |
3e0b3a56 | 2293 | if (ipforward_ipv6 ()) |
2294 | vty_out (vty, "ipv6 forwarding%s", VTY_NEWLINE); | |
718e3744 | 2295 | #endif /* HAVE_IPV6 */ |
2296 | vty_out (vty, "!%s", VTY_NEWLINE); | |
2297 | return 0; | |
2298 | } | |
2299 | ||
2300 | /* table node for routing tables. */ | |
7fc626de | 2301 | static struct cmd_node forwarding_node = |
718e3744 | 2302 | { |
2303 | FORWARDING_NODE, | |
2304 | "", /* This node has no interface. */ | |
2305 | 1 | |
2306 | }; | |
2307 | ||
6b0655a2 | 2308 | |
718e3744 | 2309 | /* Initialisation of zebra and installation of commands. */ |
2310 | void | |
a1ac18c4 | 2311 | zebra_init (void) |
718e3744 | 2312 | { |
2313 | /* Client list init. */ | |
b21b19c5 | 2314 | zebrad.client_list = list_new (); |
718e3744 | 2315 | |
718e3744 | 2316 | /* Install configuration write function. */ |
2317 | install_node (&table_node, config_write_table); | |
2318 | install_node (&forwarding_node, config_write_forwarding); | |
2319 | ||
2320 | install_element (VIEW_NODE, &show_ip_forwarding_cmd); | |
2321 | install_element (ENABLE_NODE, &show_ip_forwarding_cmd); | |
647e4f1f | 2322 | install_element (CONFIG_NODE, &ip_forwarding_cmd); |
718e3744 | 2323 | install_element (CONFIG_NODE, &no_ip_forwarding_cmd); |
2324 | install_element (ENABLE_NODE, &show_zebra_client_cmd); | |
04b02fda | 2325 | install_element (ENABLE_NODE, &show_zebra_client_summary_cmd); |
718e3744 | 2326 | |
2327 | #ifdef HAVE_NETLINK | |
2328 | install_element (VIEW_NODE, &show_table_cmd); | |
2329 | install_element (ENABLE_NODE, &show_table_cmd); | |
2330 | install_element (CONFIG_NODE, &config_table_cmd); | |
2331 | #endif /* HAVE_NETLINK */ | |
2332 | ||
2333 | #ifdef HAVE_IPV6 | |
2334 | install_element (VIEW_NODE, &show_ipv6_forwarding_cmd); | |
2335 | install_element (ENABLE_NODE, &show_ipv6_forwarding_cmd); | |
55906724 | 2336 | install_element (CONFIG_NODE, &ipv6_forwarding_cmd); |
718e3744 | 2337 | install_element (CONFIG_NODE, &no_ipv6_forwarding_cmd); |
2338 | #endif /* HAVE_IPV6 */ | |
7514fb77 PJ |
2339 | |
2340 | /* Route-map */ | |
2341 | zebra_route_map_init (); | |
718e3744 | 2342 | } |
97be79f9 DO |
2343 | |
2344 | /* Make zebra server socket, wiping any existing one (see bug #403). */ | |
2345 | void | |
b5114685 | 2346 | zebra_zserv_socket_init (char *path) |
97be79f9 DO |
2347 | { |
2348 | #ifdef HAVE_TCP_ZEBRA | |
2349 | zebra_serv (); | |
2350 | #else | |
b5114685 | 2351 | zebra_serv_un (path ? path : ZEBRA_SERV_PATH); |
97be79f9 DO |
2352 | #endif /* HAVE_TCP_ZEBRA */ |
2353 | } |