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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 | ||
719e9741 | 69 | static int |
70 | zserv_flush_data(struct thread *thread) | |
ccf3557b | 71 | { |
719e9741 | 72 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 73 | |
719e9741 | 74 | client->t_write = NULL; |
75 | if (client->t_suicide) | |
ccf3557b | 76 | { |
719e9741 | 77 | zebra_client_close(client); |
78 | return -1; | |
ccf3557b | 79 | } |
719e9741 | 80 | switch (buffer_flush_available(client->wb, client->sock)) |
ccf3557b | 81 | { |
719e9741 | 82 | case BUFFER_ERROR: |
83 | zlog_warn("%s: buffer_flush_available failed on zserv client fd %d, " | |
84 | "closing", __func__, client->sock); | |
85 | zebra_client_close(client); | |
86 | break; | |
87 | case BUFFER_PENDING: | |
88 | client->t_write = thread_add_write(zebrad.master, zserv_flush_data, | |
89 | client, client->sock); | |
90 | break; | |
91 | case BUFFER_EMPTY: | |
92 | break; | |
ccf3557b | 93 | } |
04b02fda DS |
94 | |
95 | client->last_write_time = quagga_time(NULL); | |
719e9741 | 96 | return 0; |
97 | } | |
ccf3557b | 98 | |
fb018d25 | 99 | int |
719e9741 | 100 | zebra_server_send_message(struct zserv *client) |
101 | { | |
102 | if (client->t_suicide) | |
103 | return -1; | |
04b02fda DS |
104 | |
105 | stream_set_getp(client->obuf, 0); | |
106 | client->last_write_cmd = stream_getw_from(client->obuf, 4); | |
719e9741 | 107 | switch (buffer_write(client->wb, client->sock, STREAM_DATA(client->obuf), |
108 | stream_get_endp(client->obuf))) | |
109 | { | |
110 | case BUFFER_ERROR: | |
111 | zlog_warn("%s: buffer_write failed to zserv client fd %d, closing", | |
112 | __func__, client->sock); | |
113 | /* Schedule a delayed close since many of the functions that call this | |
114 | one do not check the return code. They do not allow for the | |
115 | possibility that an I/O error may have caused the client to be | |
116 | deleted. */ | |
117 | client->t_suicide = thread_add_event(zebrad.master, zserv_delayed_close, | |
118 | client, 0); | |
119 | return -1; | |
719e9741 | 120 | case BUFFER_EMPTY: |
121 | THREAD_OFF(client->t_write); | |
122 | break; | |
123 | case BUFFER_PENDING: | |
124 | THREAD_WRITE_ON(zebrad.master, client->t_write, | |
125 | zserv_flush_data, client, client->sock); | |
126 | break; | |
127 | } | |
04b02fda DS |
128 | |
129 | client->last_write_time = quagga_time(NULL); | |
ccf3557b | 130 | return 0; |
131 | } | |
132 | ||
fb018d25 | 133 | void |
c1b9800a | 134 | zserv_create_header (struct stream *s, uint16_t cmd) |
135 | { | |
136 | /* length placeholder, caller can update */ | |
137 | stream_putw (s, ZEBRA_HEADER_SIZE); | |
138 | stream_putc (s, ZEBRA_HEADER_MARKER); | |
139 | stream_putc (s, ZSERV_VERSION); | |
140 | stream_putw (s, cmd); | |
141 | } | |
142 | ||
51d4ef83 JB |
143 | static void |
144 | zserv_encode_interface (struct stream *s, struct interface *ifp) | |
145 | { | |
146 | /* Interface information. */ | |
147 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
148 | stream_putl (s, ifp->ifindex); | |
149 | stream_putc (s, ifp->status); | |
150 | stream_putq (s, ifp->flags); | |
244c1cdc DS |
151 | stream_putc (s, ifp->ptm_enable); |
152 | stream_putc (s, ifp->ptm_status); | |
51d4ef83 JB |
153 | stream_putl (s, ifp->metric); |
154 | stream_putl (s, ifp->mtu); | |
155 | stream_putl (s, ifp->mtu6); | |
156 | stream_putl (s, ifp->bandwidth); | |
157 | #ifdef HAVE_STRUCT_SOCKADDR_DL | |
ca3ccd87 | 158 | stream_put (s, &ifp->sdl, sizeof (ifp->sdl_storage)); |
51d4ef83 JB |
159 | #else |
160 | stream_putl (s, ifp->hw_addr_len); | |
161 | if (ifp->hw_addr_len) | |
162 | stream_put (s, ifp->hw_addr, ifp->hw_addr_len); | |
163 | #endif /* HAVE_STRUCT_SOCKADDR_DL */ | |
164 | ||
165 | /* Write packet size. */ | |
166 | stream_putw_at (s, 0, stream_get_endp (s)); | |
167 | } | |
168 | ||
718e3744 | 169 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 170 | /* |
171 | * This function is called in the following situations: | |
172 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
173 | * from the client. | |
174 | * - at startup, when zebra figures out the available interfaces | |
175 | * - when an interface is added (where support for | |
176 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
177 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
178 | * received) | |
179 | */ | |
718e3744 | 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) | |
719e9741 | 187 | return 0; |
718e3744 | 188 | |
189 | s = client->obuf; | |
190 | stream_reset (s); | |
191 | ||
c1b9800a | 192 | zserv_create_header (s, ZEBRA_INTERFACE_ADD); |
51d4ef83 | 193 | zserv_encode_interface (s, ifp); |
718e3744 | 194 | |
04b02fda | 195 | client->ifadd_cnt++; |
719e9741 | 196 | return zebra_server_send_message(client); |
718e3744 | 197 | } |
198 | ||
199 | /* Interface deletion from zebra daemon. */ | |
200 | int | |
201 | zsend_interface_delete (struct zserv *client, struct interface *ifp) | |
202 | { | |
203 | struct stream *s; | |
204 | ||
205 | /* Check this client need interface information. */ | |
206 | if (! client->ifinfo) | |
719e9741 | 207 | return 0; |
718e3744 | 208 | |
209 | s = client->obuf; | |
210 | stream_reset (s); | |
718e3744 | 211 | |
51d4ef83 JB |
212 | zserv_create_header (s, ZEBRA_INTERFACE_DELETE); |
213 | zserv_encode_interface (s, ifp); | |
718e3744 | 214 | |
04b02fda | 215 | client->ifdel_cnt++; |
719e9741 | 216 | return zebra_server_send_message (client); |
718e3744 | 217 | } |
218 | ||
b9df2d25 | 219 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
220 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
221 | * | |
222 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
223 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
224 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
225 | * sent from zebra to the client | |
226 | * - redistribute new address info to all clients in the following situations | |
227 | * - at startup, when zebra figures out the available interfaces | |
228 | * - when an interface is added (where support for | |
229 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
230 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
231 | * received) | |
232 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
233 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
234 | * - when an RTM_NEWADDR message is received from the kernel, | |
235 | * | |
236 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
237 | * | |
238 | * zsend_interface_address(DELETE) | |
239 | * ^ | |
240 | * | | |
241 | * zebra_interface_address_delete_update | |
242 | * ^ ^ ^ | |
6eb8827d | 243 | * | | if_delete_update |
244 | * | | | |
b9df2d25 | 245 | * ip_address_uninstall connected_delete_ipv4 |
246 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
247 | * ^ ^ | |
248 | * | | | |
249 | * | RTM_NEWADDR on routing/netlink socket | |
250 | * | | |
251 | * vty commands: | |
252 | * "no ip address A.B.C.D/M [label LINE]" | |
253 | * "no ip address A.B.C.D/M secondary" | |
254 | * ["no ipv6 address X:X::X:X/M"] | |
255 | * | |
256 | */ | |
718e3744 | 257 | int |
b9df2d25 | 258 | zsend_interface_address (int cmd, struct zserv *client, |
259 | struct interface *ifp, struct connected *ifc) | |
718e3744 | 260 | { |
261 | int blen; | |
262 | struct stream *s; | |
263 | struct prefix *p; | |
264 | ||
265 | /* Check this client need interface information. */ | |
266 | if (! client->ifinfo) | |
719e9741 | 267 | return 0; |
718e3744 | 268 | |
269 | s = client->obuf; | |
270 | stream_reset (s); | |
c1b9800a | 271 | |
272 | zserv_create_header (s, cmd); | |
718e3744 | 273 | stream_putl (s, ifp->ifindex); |
274 | ||
275 | /* Interface address flag. */ | |
276 | stream_putc (s, ifc->flags); | |
277 | ||
278 | /* Prefix information. */ | |
279 | p = ifc->address; | |
280 | stream_putc (s, p->family); | |
281 | blen = prefix_blen (p); | |
282 | stream_put (s, &p->u.prefix, blen); | |
b9df2d25 | 283 | |
284 | /* | |
285 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
286 | * but zebra_interface_address_delete_read() in the gnu version | |
287 | * expects to find it | |
288 | */ | |
718e3744 | 289 | stream_putc (s, p->prefixlen); |
290 | ||
291 | /* Destination. */ | |
292 | p = ifc->destination; | |
293 | if (p) | |
294 | stream_put (s, &p->u.prefix, blen); | |
295 | else | |
296 | stream_put (s, NULL, blen); | |
297 | ||
298 | /* Write packet size. */ | |
299 | stream_putw_at (s, 0, stream_get_endp (s)); | |
300 | ||
04b02fda | 301 | client->connected_rt_add_cnt++; |
719e9741 | 302 | return zebra_server_send_message(client); |
718e3744 | 303 | } |
304 | ||
a80beece DS |
305 | static int |
306 | zsend_interface_nbr_address (int cmd, struct zserv *client, | |
307 | struct interface *ifp, struct nbr_connected *ifc) | |
308 | { | |
309 | int blen; | |
310 | struct stream *s; | |
311 | struct prefix *p; | |
312 | ||
313 | /* Check this client need interface information. */ | |
314 | if (! client->ifinfo) | |
315 | return 0; | |
316 | ||
317 | s = client->obuf; | |
318 | stream_reset (s); | |
319 | ||
320 | zserv_create_header (s, cmd); | |
321 | stream_putl (s, ifp->ifindex); | |
322 | ||
323 | /* Prefix information. */ | |
324 | p = ifc->address; | |
325 | stream_putc (s, p->family); | |
326 | blen = prefix_blen (p); | |
327 | stream_put (s, &p->u.prefix, blen); | |
328 | ||
329 | /* | |
330 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
331 | * but zebra_interface_address_delete_read() in the gnu version | |
332 | * expects to find it | |
333 | */ | |
334 | stream_putc (s, p->prefixlen); | |
335 | ||
336 | /* Write packet size. */ | |
337 | stream_putw_at (s, 0, stream_get_endp (s)); | |
338 | ||
339 | return zebra_server_send_message(client); | |
340 | } | |
341 | ||
342 | /* Interface address addition. */ | |
343 | static void | |
344 | zebra_interface_nbr_address_add_update (struct interface *ifp, | |
345 | struct nbr_connected *ifc) | |
346 | { | |
347 | struct listnode *node, *nnode; | |
348 | struct zserv *client; | |
349 | struct prefix *p; | |
350 | ||
351 | if (IS_ZEBRA_DEBUG_EVENT) | |
352 | { | |
353 | char buf[INET6_ADDRSTRLEN]; | |
354 | ||
355 | p = ifc->address; | |
356 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
357 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
358 | p->prefixlen, ifc->ifp->name); | |
359 | } | |
360 | ||
361 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
362 | if (client->ifinfo) | |
363 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, ifp, ifc); | |
364 | } | |
365 | ||
366 | /* Interface address deletion. */ | |
367 | static void | |
368 | zebra_interface_nbr_address_delete_update (struct interface *ifp, | |
369 | struct nbr_connected *ifc) | |
370 | { | |
371 | struct listnode *node, *nnode; | |
372 | struct zserv *client; | |
373 | struct prefix *p; | |
374 | ||
375 | if (IS_ZEBRA_DEBUG_EVENT) | |
376 | { | |
377 | char buf[INET6_ADDRSTRLEN]; | |
378 | ||
379 | p = ifc->address; | |
380 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
381 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
382 | p->prefixlen, ifc->ifp->name); | |
383 | } | |
384 | ||
385 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
386 | if (client->ifinfo) | |
387 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, client, ifp, ifc); | |
388 | } | |
389 | ||
390 | /* Add new nbr connected IPv6 address if none exists already, or replace the | |
391 | existing one if an ifc entry is found on the interface. */ | |
392 | void | |
393 | nbr_connected_replacement_add_ipv6 (struct interface *ifp, struct in6_addr *address, | |
394 | u_char prefixlen) | |
395 | { | |
396 | struct nbr_connected *ifc; | |
397 | struct prefix p; | |
398 | ||
399 | p.family = AF_INET6; | |
400 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
401 | p.prefixlen = prefixlen; | |
402 | ||
403 | if (nbr_connected_check(ifp, &p)) | |
404 | return; | |
405 | ||
406 | if (!(ifc = listnode_head(ifp->nbr_connected))) | |
407 | { | |
408 | /* new addition */ | |
409 | ifc = nbr_connected_new (); | |
410 | ifc->address = prefix_new(); | |
411 | ifc->ifp = ifp; | |
412 | listnode_add (ifp->nbr_connected, ifc); | |
413 | } | |
414 | ||
415 | prefix_copy(ifc->address, &p); | |
416 | ||
417 | zebra_interface_nbr_address_add_update (ifp, ifc); | |
418 | } | |
419 | ||
420 | void | |
421 | nbr_connected_delete_ipv6 (struct interface *ifp, struct in6_addr *address, | |
422 | u_char prefixlen) | |
423 | { | |
424 | struct nbr_connected *ifc; | |
425 | struct prefix p; | |
426 | ||
427 | p.family = AF_INET6; | |
428 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
429 | p.prefixlen = prefixlen; | |
430 | ||
431 | ifc = nbr_connected_check(ifp, &p); | |
432 | if (!ifc) | |
433 | return; | |
434 | ||
435 | listnode_delete (ifp->nbr_connected, ifc); | |
436 | ||
437 | zebra_interface_nbr_address_delete_update (ifp, ifc); | |
438 | ||
439 | nbr_connected_free (ifc); | |
440 | } | |
441 | ||
b9df2d25 | 442 | /* |
443 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
444 | * ZEBRA_INTERFACE_DOWN. | |
445 | * | |
446 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
447 | * the clients in one of 2 situations: | |
448 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
449 | * - a vty command modifying the bandwidth of an interface is received. | |
450 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
451 | */ | |
718e3744 | 452 | int |
b9df2d25 | 453 | zsend_interface_update (int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 454 | { |
455 | struct stream *s; | |
456 | ||
457 | /* Check this client need interface information. */ | |
458 | if (! client->ifinfo) | |
719e9741 | 459 | return 0; |
718e3744 | 460 | |
461 | s = client->obuf; | |
462 | stream_reset (s); | |
463 | ||
c1b9800a | 464 | zserv_create_header (s, cmd); |
51d4ef83 | 465 | zserv_encode_interface (s, ifp); |
718e3744 | 466 | |
04b02fda DS |
467 | if (cmd == ZEBRA_INTERFACE_UP) |
468 | client->ifup_cnt++; | |
469 | else | |
470 | client->ifdown_cnt++; | |
471 | ||
719e9741 | 472 | return zebra_server_send_message(client); |
718e3744 | 473 | } |
474 | ||
d5a5c8f0 DS |
475 | int |
476 | zsend_interface_bfd_update (int cmd, struct zserv *client, | |
477 | struct interface *ifp, struct prefix *p) | |
478 | { | |
479 | int blen; | |
480 | struct stream *s; | |
481 | ||
482 | /* Check this client need interface information. */ | |
483 | if (! client->ifinfo) | |
484 | return 0; | |
485 | ||
486 | s = client->obuf; | |
487 | stream_reset (s); | |
488 | ||
489 | zserv_create_header (s, cmd); | |
490 | stream_putl (s, ifp->ifindex); | |
491 | ||
492 | /* BFD destination prefix information. */ | |
493 | stream_putc (s, p->family); | |
494 | blen = prefix_blen (p); | |
495 | stream_put (s, &p->u.prefix, blen); | |
496 | stream_putc (s, p->prefixlen); | |
497 | ||
498 | /* Write packet size. */ | |
499 | stream_putw_at (s, 0, stream_get_endp (s)); | |
500 | ||
501 | client->if_bfd_cnt++; | |
502 | return zebra_server_send_message(client); | |
503 | } | |
504 | ||
b9df2d25 | 505 | /* |
506 | * The zebra server sends the clients a ZEBRA_IPV4_ROUTE_ADD or a | |
507 | * ZEBRA_IPV6_ROUTE_ADD via zsend_route_multipath in the following | |
508 | * situations: | |
509 | * - when the client starts up, and requests default information | |
510 | * by sending a ZEBRA_REDISTRIBUTE_DEFAULT_ADD to the zebra server, in the | |
511 | * - case of rip, ripngd, ospfd and ospf6d, when the client sends a | |
512 | * ZEBRA_REDISTRIBUTE_ADD as a result of the "redistribute" vty cmd, | |
513 | * - when the zebra server redistributes routes after it updates its rib | |
514 | * | |
515 | * The zebra server sends clients a ZEBRA_IPV4_ROUTE_DELETE or a | |
516 | * ZEBRA_IPV6_ROUTE_DELETE via zsend_route_multipath when: | |
517 | * - a "ip route" or "ipv6 route" vty command is issued, a prefix is | |
518 | * - deleted from zebra's rib, and this info | |
519 | * has to be redistributed to the clients | |
520 | * | |
521 | * XXX The ZEBRA_IPV*_ROUTE_ADD message is also sent by the client to the | |
522 | * zebra server when the client wants to tell the zebra server to add a | |
523 | * route to the kernel (zapi_ipv4_add etc. ). Since it's essentially the | |
524 | * same message being sent back and forth, this function and | |
525 | * zapi_ipv{4,6}_{add, delete} should be re-written to avoid code | |
526 | * duplication. | |
527 | */ | |
718e3744 | 528 | int |
b9df2d25 | 529 | zsend_route_multipath (int cmd, struct zserv *client, struct prefix *p, |
530 | struct rib *rib) | |
718e3744 | 531 | { |
532 | int psize; | |
533 | struct stream *s; | |
534 | struct nexthop *nexthop; | |
1dcb5172 | 535 | unsigned long nhnummark = 0, messmark = 0; |
b9df2d25 | 536 | int nhnum = 0; |
1dcb5172 | 537 | u_char zapi_flags = 0; |
b9df2d25 | 538 | |
718e3744 | 539 | s = client->obuf; |
540 | stream_reset (s); | |
c1b9800a | 541 | |
542 | zserv_create_header (s, cmd); | |
543 | ||
544 | /* Put type and nexthop. */ | |
718e3744 | 545 | stream_putc (s, rib->type); |
7c8ff89e | 546 | stream_putw (s, rib->instance); |
718e3744 | 547 | stream_putc (s, rib->flags); |
1dcb5172 | 548 | |
549 | /* marker for message flags field */ | |
550 | messmark = stream_get_endp (s); | |
551 | stream_putc (s, 0); | |
718e3744 | 552 | |
553 | /* Prefix. */ | |
554 | psize = PSIZE (p->prefixlen); | |
555 | stream_putc (s, p->prefixlen); | |
b9df2d25 | 556 | stream_write (s, (u_char *) & p->u.prefix, psize); |
557 | ||
558 | /* | |
559 | * XXX The message format sent by zebra below does not match the format | |
560 | * of the corresponding message expected by the zebra server | |
561 | * itself (e.g., see zread_ipv4_add). The nexthop_num is not set correctly, | |
562 | * (is there a bug on the client side if more than one segment is sent?) | |
563 | * nexthop ZEBRA_NEXTHOP_IPV4 is never set, ZEBRA_NEXTHOP_IFINDEX | |
564 | * is hard-coded. | |
565 | */ | |
718e3744 | 566 | /* Nexthop */ |
1dcb5172 | 567 | |
718e3744 | 568 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
569 | { | |
fa713d9e CF |
570 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
571 | || nexthop_has_fib_child(nexthop)) | |
b9df2d25 | 572 | { |
1dcb5172 | 573 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); |
574 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
575 | ||
576 | if (nhnummark == 0) | |
577 | { | |
578 | nhnummark = stream_get_endp (s); | |
579 | stream_putc (s, 1); /* placeholder */ | |
580 | } | |
581 | ||
b9df2d25 | 582 | nhnum++; |
583 | ||
584 | switch(nexthop->type) | |
585 | { | |
586 | case NEXTHOP_TYPE_IPV4: | |
587 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
588 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
589 | break; | |
718e3744 | 590 | #ifdef HAVE_IPV6 |
b9df2d25 | 591 | case NEXTHOP_TYPE_IPV6: |
592 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
593 | case NEXTHOP_TYPE_IPV6_IFNAME: | |
594 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); | |
595 | break; | |
596 | #endif | |
597 | default: | |
598 | if (cmd == ZEBRA_IPV4_ROUTE_ADD | |
599 | || cmd == ZEBRA_IPV4_ROUTE_DELETE) | |
600 | { | |
601 | struct in_addr empty; | |
44983cf8 | 602 | memset (&empty, 0, sizeof (struct in_addr)); |
b9df2d25 | 603 | stream_write (s, (u_char *) &empty, IPV4_MAX_BYTELEN); |
604 | } | |
605 | else | |
606 | { | |
607 | struct in6_addr empty; | |
608 | memset (&empty, 0, sizeof (struct in6_addr)); | |
609 | stream_write (s, (u_char *) &empty, IPV6_MAX_BYTELEN); | |
610 | } | |
611 | } | |
612 | ||
613 | /* Interface index. */ | |
614 | stream_putc (s, 1); | |
615 | stream_putl (s, nexthop->ifindex); | |
616 | ||
617 | break; | |
618 | } | |
718e3744 | 619 | } |
620 | ||
621 | /* Metric */ | |
cf8a831b | 622 | if (cmd == ZEBRA_IPV4_ROUTE_ADD || cmd == ZEBRA_IPV6_ROUTE_ADD) |
1dcb5172 | 623 | { |
fbf5d033 | 624 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_DISTANCE); |
625 | stream_putc (s, rib->distance); | |
1dcb5172 | 626 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_METRIC); |
627 | stream_putl (s, rib->metric); | |
0d9551dc DS |
628 | |
629 | /* tag */ | |
630 | if (rib->tag) | |
631 | { | |
632 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
633 | stream_putw(s, rib->tag); | |
634 | } | |
1dcb5172 | 635 | } |
636 | ||
637 | /* write real message flags value */ | |
638 | stream_putc_at (s, messmark, zapi_flags); | |
639 | ||
b9df2d25 | 640 | /* Write next-hop number */ |
641 | if (nhnummark) | |
c1eaa442 | 642 | stream_putc_at (s, nhnummark, nhnum); |
b9df2d25 | 643 | |
718e3744 | 644 | /* Write packet size. */ |
645 | stream_putw_at (s, 0, stream_get_endp (s)); | |
646 | ||
719e9741 | 647 | return zebra_server_send_message(client); |
718e3744 | 648 | } |
649 | ||
b9df2d25 | 650 | #ifdef HAVE_IPV6 |
719e9741 | 651 | static int |
718e3744 | 652 | zsend_ipv6_nexthop_lookup (struct zserv *client, struct in6_addr *addr) |
653 | { | |
654 | struct stream *s; | |
655 | struct rib *rib; | |
656 | unsigned long nump; | |
657 | u_char num; | |
658 | struct nexthop *nexthop; | |
659 | ||
660 | /* Lookup nexthop. */ | |
661 | rib = rib_match_ipv6 (addr); | |
662 | ||
663 | /* Get output stream. */ | |
664 | s = client->obuf; | |
665 | stream_reset (s); | |
666 | ||
667 | /* Fill in result. */ | |
c1b9800a | 668 | zserv_create_header (s, ZEBRA_IPV6_NEXTHOP_LOOKUP); |
718e3744 | 669 | stream_put (s, &addr, 16); |
670 | ||
671 | if (rib) | |
672 | { | |
673 | stream_putl (s, rib->metric); | |
674 | num = 0; | |
9985f83c | 675 | nump = stream_get_endp(s); |
718e3744 | 676 | stream_putc (s, 0); |
fa713d9e CF |
677 | /* Only non-recursive routes are elegible to resolve nexthop we |
678 | * are looking up. Therefore, we will just iterate over the top | |
679 | * chain of nexthops. */ | |
718e3744 | 680 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
681 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
682 | { | |
683 | stream_putc (s, nexthop->type); | |
684 | switch (nexthop->type) | |
685 | { | |
686 | case ZEBRA_NEXTHOP_IPV6: | |
687 | stream_put (s, &nexthop->gate.ipv6, 16); | |
688 | break; | |
689 | case ZEBRA_NEXTHOP_IPV6_IFINDEX: | |
690 | case ZEBRA_NEXTHOP_IPV6_IFNAME: | |
691 | stream_put (s, &nexthop->gate.ipv6, 16); | |
692 | stream_putl (s, nexthop->ifindex); | |
693 | break; | |
694 | case ZEBRA_NEXTHOP_IFINDEX: | |
695 | case ZEBRA_NEXTHOP_IFNAME: | |
696 | stream_putl (s, nexthop->ifindex); | |
697 | break; | |
fa2b17e3 | 698 | default: |
699 | /* do nothing */ | |
700 | break; | |
718e3744 | 701 | } |
702 | num++; | |
703 | } | |
704 | stream_putc_at (s, nump, num); | |
705 | } | |
706 | else | |
707 | { | |
708 | stream_putl (s, 0); | |
709 | stream_putc (s, 0); | |
710 | } | |
711 | ||
712 | stream_putw_at (s, 0, stream_get_endp (s)); | |
04b02fda | 713 | |
719e9741 | 714 | return zebra_server_send_message(client); |
718e3744 | 715 | } |
716 | #endif /* HAVE_IPV6 */ | |
717 | ||
b9df2d25 | 718 | static int |
718e3744 | 719 | zsend_ipv4_nexthop_lookup (struct zserv *client, struct in_addr addr) |
720 | { | |
721 | struct stream *s; | |
722 | struct rib *rib; | |
723 | unsigned long nump; | |
724 | u_char num; | |
725 | struct nexthop *nexthop; | |
726 | ||
727 | /* Lookup nexthop. */ | |
728 | rib = rib_match_ipv4 (addr); | |
729 | ||
730 | /* Get output stream. */ | |
731 | s = client->obuf; | |
732 | stream_reset (s); | |
733 | ||
734 | /* Fill in result. */ | |
c1b9800a | 735 | zserv_create_header (s, ZEBRA_IPV4_NEXTHOP_LOOKUP); |
718e3744 | 736 | stream_put_in_addr (s, &addr); |
737 | ||
738 | if (rib) | |
739 | { | |
bb97e462 CF |
740 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
741 | zlog_debug("%s: Matching rib entry found.", __func__); | |
718e3744 | 742 | stream_putl (s, rib->metric); |
743 | num = 0; | |
9985f83c | 744 | nump = stream_get_endp(s); |
718e3744 | 745 | stream_putc (s, 0); |
fa713d9e CF |
746 | /* Only non-recursive routes are elegible to resolve the nexthop we |
747 | * are looking up. Therefore, we will just iterate over the top | |
748 | * chain of nexthops. */ | |
718e3744 | 749 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
750 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
751 | { | |
752 | stream_putc (s, nexthop->type); | |
753 | switch (nexthop->type) | |
754 | { | |
755 | case ZEBRA_NEXTHOP_IPV4: | |
756 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
757 | break; | |
bb97e462 CF |
758 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
759 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
760 | stream_putl (s, nexthop->ifindex); | |
761 | break; | |
718e3744 | 762 | case ZEBRA_NEXTHOP_IFINDEX: |
763 | case ZEBRA_NEXTHOP_IFNAME: | |
764 | stream_putl (s, nexthop->ifindex); | |
765 | break; | |
fa2b17e3 | 766 | default: |
767 | /* do nothing */ | |
768 | break; | |
718e3744 | 769 | } |
770 | num++; | |
771 | } | |
772 | stream_putc_at (s, nump, num); | |
773 | } | |
774 | else | |
775 | { | |
bb97e462 CF |
776 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
777 | zlog_debug("%s: No matching rib entry found.", __func__); | |
718e3744 | 778 | stream_putl (s, 0); |
779 | stream_putc (s, 0); | |
780 | } | |
781 | ||
782 | stream_putw_at (s, 0, stream_get_endp (s)); | |
783 | ||
719e9741 | 784 | return zebra_server_send_message(client); |
718e3744 | 785 | } |
786 | ||
fb018d25 DS |
787 | /* Nexthop register */ |
788 | static int | |
078430f6 DS |
789 | zserv_rnh_register (struct zserv *client, int sock, u_short length, |
790 | rnh_type_t type) | |
fb018d25 DS |
791 | { |
792 | struct rnh *rnh; | |
793 | struct stream *s; | |
794 | struct prefix p; | |
795 | u_short l = 0; | |
078430f6 | 796 | u_char flags = 0; |
fb018d25 DS |
797 | |
798 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 DS |
799 | zlog_debug("rnh_register msg from client %s: length=%d, type=%s\n", |
800 | zebra_route_string(client->proto), length, | |
801 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route"); | |
fb018d25 DS |
802 | |
803 | s = client->ibuf; | |
804 | ||
078430f6 DS |
805 | client->nh_reg_time = quagga_time(NULL); |
806 | ||
fb018d25 DS |
807 | while (l < length) |
808 | { | |
078430f6 | 809 | flags = stream_getc(s); |
fb018d25 DS |
810 | p.family = stream_getw(s); |
811 | p.prefixlen = stream_getc(s); | |
fc9a856f | 812 | l += 4; |
078430f6 DS |
813 | if (p.family == AF_INET) |
814 | { | |
815 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
816 | l += IPV4_MAX_BYTELEN; | |
817 | } | |
818 | else if (p.family == AF_INET6) | |
819 | { | |
820 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
821 | l += IPV6_MAX_BYTELEN; | |
822 | } | |
823 | else | |
824 | { | |
825 | zlog_err("rnh_register: Received unknown family type %d\n", | |
826 | p.family); | |
827 | return -1; | |
828 | } | |
829 | rnh = zebra_add_rnh(&p, 0, type); | |
830 | if (type == RNH_NEXTHOP_TYPE) | |
831 | { | |
832 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
833 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
834 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
835 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
836 | } | |
837 | else if (type == RNH_IMPORT_CHECK_TYPE) | |
838 | { | |
839 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
840 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
841 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
842 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
843 | } | |
844 | ||
845 | zebra_add_rnh_client(rnh, client, type); | |
846 | /* Anything not AF_INET/INET6 has been filtered out above */ | |
847 | zebra_evaluate_rnh(0, p.family, 1, type, &p); | |
fb018d25 | 848 | } |
fb018d25 DS |
849 | return 0; |
850 | } | |
851 | ||
852 | /* Nexthop register */ | |
853 | static int | |
078430f6 DS |
854 | zserv_rnh_unregister (struct zserv *client, int sock, u_short length, |
855 | rnh_type_t type) | |
fb018d25 DS |
856 | { |
857 | struct rnh *rnh; | |
858 | struct stream *s; | |
859 | struct prefix p; | |
860 | u_short l = 0; | |
861 | ||
862 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 | 863 | zlog_debug("rnh_unregister msg from client %s: length=%d\n", |
fb018d25 DS |
864 | zebra_route_string(client->proto), length); |
865 | ||
866 | s = client->ibuf; | |
867 | ||
868 | while (l < length) | |
869 | { | |
4e3afb14 | 870 | (void)stream_getc(s); //Connected or not. Not used in this function |
fb018d25 DS |
871 | p.family = stream_getw(s); |
872 | p.prefixlen = stream_getc(s); | |
fc9a856f | 873 | l += 4; |
078430f6 DS |
874 | if (p.family == AF_INET) |
875 | { | |
876 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
877 | l += IPV4_MAX_BYTELEN; | |
878 | } | |
879 | else if (p.family == AF_INET6) | |
880 | { | |
881 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
882 | l += IPV6_MAX_BYTELEN; | |
883 | } | |
884 | else | |
885 | { | |
886 | zlog_err("rnh_register: Received unknown family type %d\n", | |
887 | p.family); | |
888 | return -1; | |
889 | } | |
890 | rnh = zebra_lookup_rnh(&p, 0, type); | |
fb018d25 | 891 | if (rnh) |
04b02fda DS |
892 | { |
893 | client->nh_dereg_time = quagga_time(NULL); | |
078430f6 | 894 | zebra_remove_rnh_client(rnh, client, type); |
04b02fda | 895 | } |
fb018d25 DS |
896 | } |
897 | return 0; | |
898 | } | |
899 | ||
b9df2d25 | 900 | static int |
718e3744 | 901 | zsend_ipv4_import_lookup (struct zserv *client, struct prefix_ipv4 *p) |
902 | { | |
903 | struct stream *s; | |
904 | struct rib *rib; | |
905 | unsigned long nump; | |
906 | u_char num; | |
907 | struct nexthop *nexthop; | |
908 | ||
909 | /* Lookup nexthop. */ | |
910 | rib = rib_lookup_ipv4 (p); | |
911 | ||
912 | /* Get output stream. */ | |
913 | s = client->obuf; | |
914 | stream_reset (s); | |
915 | ||
916 | /* Fill in result. */ | |
c1b9800a | 917 | zserv_create_header (s, ZEBRA_IPV4_IMPORT_LOOKUP); |
718e3744 | 918 | stream_put_in_addr (s, &p->prefix); |
919 | ||
920 | if (rib) | |
921 | { | |
922 | stream_putl (s, rib->metric); | |
923 | num = 0; | |
9985f83c | 924 | nump = stream_get_endp(s); |
718e3744 | 925 | stream_putc (s, 0); |
926 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
fa713d9e CF |
927 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
928 | || nexthop_has_fib_child(nexthop)) | |
718e3744 | 929 | { |
930 | stream_putc (s, nexthop->type); | |
931 | switch (nexthop->type) | |
932 | { | |
933 | case ZEBRA_NEXTHOP_IPV4: | |
934 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
935 | break; | |
a12afd5e CF |
936 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
937 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
938 | stream_putl (s, nexthop->ifindex); | |
939 | break; | |
718e3744 | 940 | case ZEBRA_NEXTHOP_IFINDEX: |
941 | case ZEBRA_NEXTHOP_IFNAME: | |
942 | stream_putl (s, nexthop->ifindex); | |
943 | break; | |
fa2b17e3 | 944 | default: |
945 | /* do nothing */ | |
946 | break; | |
718e3744 | 947 | } |
948 | num++; | |
949 | } | |
950 | stream_putc_at (s, nump, num); | |
951 | } | |
952 | else | |
953 | { | |
954 | stream_putl (s, 0); | |
955 | stream_putc (s, 0); | |
956 | } | |
957 | ||
958 | stream_putw_at (s, 0, stream_get_endp (s)); | |
04b02fda | 959 | |
719e9741 | 960 | return zebra_server_send_message(client); |
718e3744 | 961 | } |
6b0655a2 | 962 | |
18a6dce6 | 963 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
964 | int | |
965 | zsend_router_id_update (struct zserv *client, struct prefix *p) | |
966 | { | |
967 | struct stream *s; | |
968 | int blen; | |
969 | ||
970 | /* Check this client need interface information. */ | |
971 | if (!client->ridinfo) | |
719e9741 | 972 | return 0; |
18a6dce6 | 973 | |
974 | s = client->obuf; | |
975 | stream_reset (s); | |
976 | ||
18a6dce6 | 977 | /* Message type. */ |
c1b9800a | 978 | zserv_create_header (s, ZEBRA_ROUTER_ID_UPDATE); |
18a6dce6 | 979 | |
980 | /* Prefix information. */ | |
981 | stream_putc (s, p->family); | |
982 | blen = prefix_blen (p); | |
983 | stream_put (s, &p->u.prefix, blen); | |
984 | stream_putc (s, p->prefixlen); | |
985 | ||
986 | /* Write packet size. */ | |
987 | stream_putw_at (s, 0, stream_get_endp (s)); | |
988 | ||
719e9741 | 989 | return zebra_server_send_message(client); |
18a6dce6 | 990 | } |
6b0655a2 | 991 | |
718e3744 | 992 | /* Register zebra server interface information. Send current all |
993 | interface and address information. */ | |
719e9741 | 994 | static int |
718e3744 | 995 | zread_interface_add (struct zserv *client, u_short length) |
996 | { | |
1eb8ef25 | 997 | struct listnode *ifnode, *ifnnode; |
998 | struct listnode *cnode, *cnnode; | |
718e3744 | 999 | struct interface *ifp; |
1000 | struct connected *c; | |
a80beece | 1001 | struct nbr_connected *nc; |
718e3744 | 1002 | |
1003 | /* Interface information is needed. */ | |
1004 | client->ifinfo = 1; | |
1005 | ||
1eb8ef25 | 1006 | for (ALL_LIST_ELEMENTS (iflist, ifnode, ifnnode, ifp)) |
718e3744 | 1007 | { |
718e3744 | 1008 | /* Skip pseudo interface. */ |
1009 | if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1010 | continue; | |
1011 | ||
719e9741 | 1012 | if (zsend_interface_add (client, ifp) < 0) |
1013 | return -1; | |
718e3744 | 1014 | |
1eb8ef25 | 1015 | for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, c)) |
718e3744 | 1016 | { |
719e9741 | 1017 | if (CHECK_FLAG (c->conf, ZEBRA_IFC_REAL) && |
1018 | (zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
1019 | ifp, c) < 0)) | |
1020 | return -1; | |
718e3744 | 1021 | } |
a80beece DS |
1022 | for (ALL_LIST_ELEMENTS (ifp->nbr_connected, cnode, cnnode, nc)) |
1023 | { | |
1024 | if (zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, | |
1025 | ifp, nc) < 0) | |
1026 | return -1; | |
1027 | } | |
1028 | ||
718e3744 | 1029 | } |
719e9741 | 1030 | return 0; |
718e3744 | 1031 | } |
1032 | ||
1033 | /* Unregister zebra server interface information. */ | |
719e9741 | 1034 | static int |
718e3744 | 1035 | zread_interface_delete (struct zserv *client, u_short length) |
1036 | { | |
1037 | client->ifinfo = 0; | |
719e9741 | 1038 | return 0; |
718e3744 | 1039 | } |
1040 | ||
1041 | /* This function support multiple nexthop. */ | |
b9df2d25 | 1042 | /* |
1043 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update rib and | |
1044 | * add kernel route. | |
1045 | */ | |
719e9741 | 1046 | static int |
718e3744 | 1047 | zread_ipv4_add (struct zserv *client, u_short length) |
1048 | { | |
1049 | int i; | |
1050 | struct rib *rib; | |
1051 | struct prefix_ipv4 p; | |
1052 | u_char message; | |
1053 | struct in_addr nexthop; | |
1054 | u_char nexthop_num; | |
1055 | u_char nexthop_type; | |
1056 | struct stream *s; | |
1057 | unsigned int ifindex; | |
1058 | u_char ifname_len; | |
cddf391b | 1059 | safi_t safi; |
04b02fda | 1060 | int ret; |
718e3744 | 1061 | |
1062 | /* Get input stream. */ | |
1063 | s = client->ibuf; | |
1064 | ||
1065 | /* Allocate new rib. */ | |
4d38fdb4 | 1066 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); |
1067 | ||
718e3744 | 1068 | /* Type, flags, message. */ |
1069 | rib->type = stream_getc (s); | |
7c8ff89e | 1070 | rib->instance = stream_getw (s); |
718e3744 | 1071 | rib->flags = stream_getc (s); |
b9df2d25 | 1072 | message = stream_getc (s); |
cddf391b | 1073 | safi = stream_getw (s); |
718e3744 | 1074 | rib->uptime = time (NULL); |
1075 | ||
1076 | /* IPv4 prefix. */ | |
1077 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1078 | p.family = AF_INET; | |
1079 | p.prefixlen = stream_getc (s); | |
1080 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1081 | ||
1082 | /* Nexthop parse. */ | |
1083 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1084 | { | |
1085 | nexthop_num = stream_getc (s); | |
1086 | ||
1087 | for (i = 0; i < nexthop_num; i++) | |
1088 | { | |
1089 | nexthop_type = stream_getc (s); | |
1090 | ||
1091 | switch (nexthop_type) | |
1092 | { | |
1093 | case ZEBRA_NEXTHOP_IFINDEX: | |
1094 | ifindex = stream_getl (s); | |
1095 | nexthop_ifindex_add (rib, ifindex); | |
1096 | break; | |
1097 | case ZEBRA_NEXTHOP_IFNAME: | |
1098 | ifname_len = stream_getc (s); | |
9985f83c | 1099 | stream_forward_getp (s, ifname_len); |
718e3744 | 1100 | break; |
1101 | case ZEBRA_NEXTHOP_IPV4: | |
1102 | nexthop.s_addr = stream_get_ipv4 (s); | |
7514fb77 | 1103 | nexthop_ipv4_add (rib, &nexthop, NULL); |
718e3744 | 1104 | break; |
c963c203 JT |
1105 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1106 | nexthop.s_addr = stream_get_ipv4 (s); | |
1107 | ifindex = stream_getl (s); | |
1108 | nexthop_ipv4_ifindex_add (rib, &nexthop, NULL, ifindex); | |
1109 | break; | |
718e3744 | 1110 | case ZEBRA_NEXTHOP_IPV6: |
9985f83c | 1111 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1112 | break; |
6902c69a SV |
1113 | case ZEBRA_NEXTHOP_BLACKHOLE: |
1114 | nexthop_blackhole_add (rib); | |
1115 | break; | |
c8a1cb5c DS |
1116 | case ZEBRA_NEXTHOP_IPV4_ONLINK: |
1117 | nexthop.s_addr = stream_get_ipv4 (s); | |
1118 | ifindex = stream_getl (s); | |
1119 | nexthop_ipv4_ifindex_ol_add (rib, &nexthop, NULL, ifindex); | |
1120 | break; | |
6902c69a | 1121 | } |
718e3744 | 1122 | } |
1123 | } | |
1124 | ||
1125 | /* Distance. */ | |
1126 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1127 | rib->distance = stream_getc (s); | |
1128 | ||
1129 | /* Metric. */ | |
1130 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1131 | rib->metric = stream_getl (s); | |
1132 | ||
0d9551dc DS |
1133 | /* Tag */ |
1134 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1135 | rib->tag = stream_getw (s); | |
1136 | else | |
1137 | rib->tag = 0; | |
1138 | ||
171eee31 PJ |
1139 | /* Table */ |
1140 | rib->table=zebrad.rtm_table_default; | |
04b02fda DS |
1141 | ret = rib_add_ipv4_multipath (&p, rib, safi); |
1142 | ||
1143 | /* Stats */ | |
1144 | if (ret > 0) | |
1145 | client->v4_route_add_cnt++; | |
1146 | else if (ret < 0) | |
1147 | client->v4_route_upd8_cnt++; | |
719e9741 | 1148 | return 0; |
718e3744 | 1149 | } |
1150 | ||
1151 | /* Zebra server IPv4 prefix delete function. */ | |
719e9741 | 1152 | static int |
718e3744 | 1153 | zread_ipv4_delete (struct zserv *client, u_short length) |
1154 | { | |
1155 | int i; | |
1156 | struct stream *s; | |
1157 | struct zapi_ipv4 api; | |
6902c69a | 1158 | struct in_addr nexthop, *nexthop_p; |
718e3744 | 1159 | unsigned long ifindex; |
1160 | struct prefix_ipv4 p; | |
1161 | u_char nexthop_num; | |
1162 | u_char nexthop_type; | |
1163 | u_char ifname_len; | |
1164 | ||
1165 | s = client->ibuf; | |
1166 | ifindex = 0; | |
1167 | nexthop.s_addr = 0; | |
6902c69a | 1168 | nexthop_p = NULL; |
718e3744 | 1169 | |
1170 | /* Type, flags, message. */ | |
1171 | api.type = stream_getc (s); | |
7c8ff89e | 1172 | api.instance = stream_getw (s); |
718e3744 | 1173 | api.flags = stream_getc (s); |
1174 | api.message = stream_getc (s); | |
cddf391b | 1175 | api.safi = stream_getw (s); |
718e3744 | 1176 | |
1177 | /* IPv4 prefix. */ | |
1178 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1179 | p.family = AF_INET; | |
1180 | p.prefixlen = stream_getc (s); | |
1181 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1182 | ||
1183 | /* Nexthop, ifindex, distance, metric. */ | |
1184 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1185 | { | |
1186 | nexthop_num = stream_getc (s); | |
1187 | ||
1188 | for (i = 0; i < nexthop_num; i++) | |
1189 | { | |
1190 | nexthop_type = stream_getc (s); | |
1191 | ||
1192 | switch (nexthop_type) | |
1193 | { | |
1194 | case ZEBRA_NEXTHOP_IFINDEX: | |
1195 | ifindex = stream_getl (s); | |
1196 | break; | |
1197 | case ZEBRA_NEXTHOP_IFNAME: | |
1198 | ifname_len = stream_getc (s); | |
9985f83c | 1199 | stream_forward_getp (s, ifname_len); |
718e3744 | 1200 | break; |
1201 | case ZEBRA_NEXTHOP_IPV4: | |
1202 | nexthop.s_addr = stream_get_ipv4 (s); | |
6902c69a | 1203 | nexthop_p = &nexthop; |
718e3744 | 1204 | break; |
c963c203 JT |
1205 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1206 | nexthop.s_addr = stream_get_ipv4 (s); | |
23f5f7c3 | 1207 | nexthop_p = &nexthop; |
c963c203 JT |
1208 | ifindex = stream_getl (s); |
1209 | break; | |
718e3744 | 1210 | case ZEBRA_NEXTHOP_IPV6: |
9985f83c | 1211 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1212 | break; |
1213 | } | |
1214 | } | |
1215 | } | |
1216 | ||
1217 | /* Distance. */ | |
1218 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1219 | api.distance = stream_getc (s); | |
1220 | else | |
1221 | api.distance = 0; | |
1222 | ||
1223 | /* Metric. */ | |
1224 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1225 | api.metric = stream_getl (s); | |
1226 | else | |
1227 | api.metric = 0; | |
1228 | ||
0d9551dc DS |
1229 | /* tag */ |
1230 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1231 | api.tag = stream_getw (s); | |
1232 | else | |
1233 | api.tag = 0; | |
1234 | ||
7c8ff89e | 1235 | rib_delete_ipv4 (api.type, api.instance, api.flags, &p, nexthop_p, ifindex, |
cddf391b | 1236 | client->rtm_table, api.safi); |
04b02fda | 1237 | client->v4_route_del_cnt++; |
719e9741 | 1238 | return 0; |
718e3744 | 1239 | } |
1240 | ||
1241 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 1242 | static int |
718e3744 | 1243 | zread_ipv4_nexthop_lookup (struct zserv *client, u_short length) |
1244 | { | |
1245 | struct in_addr addr; | |
bb97e462 | 1246 | char buf[BUFSIZ]; |
718e3744 | 1247 | |
1248 | addr.s_addr = stream_get_ipv4 (client->ibuf); | |
bb97e462 CF |
1249 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
1250 | zlog_debug("%s: looking up %s", __func__, | |
1251 | inet_ntop (AF_INET, &addr, buf, BUFSIZ)); | |
719e9741 | 1252 | return zsend_ipv4_nexthop_lookup (client, addr); |
718e3744 | 1253 | } |
1254 | ||
1255 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 1256 | static int |
718e3744 | 1257 | zread_ipv4_import_lookup (struct zserv *client, u_short length) |
1258 | { | |
1259 | struct prefix_ipv4 p; | |
1260 | ||
1261 | p.family = AF_INET; | |
1262 | p.prefixlen = stream_getc (client->ibuf); | |
1263 | p.prefix.s_addr = stream_get_ipv4 (client->ibuf); | |
1264 | ||
719e9741 | 1265 | return zsend_ipv4_import_lookup (client, &p); |
718e3744 | 1266 | } |
1267 | ||
1268 | #ifdef HAVE_IPV6 | |
1269 | /* Zebra server IPv6 prefix add function. */ | |
719e9741 | 1270 | static int |
718e3744 | 1271 | zread_ipv6_add (struct zserv *client, u_short length) |
1272 | { | |
1273 | int i; | |
1274 | struct stream *s; | |
718e3744 | 1275 | struct in6_addr nexthop; |
41fc2714 DS |
1276 | struct rib *rib; |
1277 | u_char message; | |
1278 | u_char nexthop_num; | |
1279 | u_char nexthop_type; | |
718e3744 | 1280 | unsigned long ifindex; |
1281 | struct prefix_ipv6 p; | |
41fc2714 DS |
1282 | safi_t safi; |
1283 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1284 | static unsigned int ifindices[MULTIPATH_NUM]; | |
04b02fda | 1285 | int ret; |
41fc2714 DS |
1286 | |
1287 | /* Get input stream. */ | |
718e3744 | 1288 | s = client->ibuf; |
41fc2714 | 1289 | |
718e3744 | 1290 | ifindex = 0; |
1291 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1292 | ||
41fc2714 DS |
1293 | /* Allocate new rib. */ |
1294 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1295 | ||
718e3744 | 1296 | /* Type, flags, message. */ |
41fc2714 | 1297 | rib->type = stream_getc (s); |
7c8ff89e | 1298 | rib->instance = stream_getw (s); |
41fc2714 DS |
1299 | rib->flags = stream_getc (s); |
1300 | message = stream_getc (s); | |
1301 | safi = stream_getw (s); | |
1302 | rib->uptime = time (NULL); | |
718e3744 | 1303 | |
41fc2714 | 1304 | /* IPv6 prefix. */ |
718e3744 | 1305 | memset (&p, 0, sizeof (struct prefix_ipv6)); |
1306 | p.family = AF_INET6; | |
1307 | p.prefixlen = stream_getc (s); | |
1308 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1309 | ||
41fc2714 DS |
1310 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1311 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1312 | * these. Clients should send the same number of paired set of | |
1313 | * next-hop-addr/next-hop-ifindices. */ | |
1314 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
718e3744 | 1315 | { |
41fc2714 DS |
1316 | int nh_count = 0; |
1317 | int if_count = 0; | |
1318 | int max_nh_if = 0; | |
718e3744 | 1319 | |
41fc2714 DS |
1320 | nexthop_num = stream_getc (s); |
1321 | for (i = 0; i < nexthop_num; i++) | |
718e3744 | 1322 | { |
1323 | nexthop_type = stream_getc (s); | |
1324 | ||
1325 | switch (nexthop_type) | |
1326 | { | |
1327 | case ZEBRA_NEXTHOP_IPV6: | |
1328 | stream_get (&nexthop, s, 16); | |
41fc2714 DS |
1329 | if (nh_count < MULTIPATH_NUM) { |
1330 | nexthops[nh_count++] = nexthop; | |
1331 | } | |
718e3744 | 1332 | break; |
1333 | case ZEBRA_NEXTHOP_IFINDEX: | |
41fc2714 DS |
1334 | if (if_count < MULTIPATH_NUM) { |
1335 | ifindices[if_count++] = stream_getl (s); | |
1336 | } | |
718e3744 | 1337 | break; |
c3c0ac83 DS |
1338 | case ZEBRA_NEXTHOP_BLACKHOLE: |
1339 | nexthop_blackhole_add (rib); | |
1340 | break; | |
718e3744 | 1341 | } |
1342 | } | |
41fc2714 DS |
1343 | |
1344 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1345 | for (i = 0; i < max_nh_if; i++) | |
1346 | { | |
1347 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
1348 | if ((i < if_count) && ifindices[i]) { | |
1349 | if (rib_bogus_ipv6 (rib->type, &p, &nexthops[i], ifindices[i], 0)) { | |
1350 | continue; | |
1351 | } | |
1352 | nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); | |
1353 | } | |
1354 | else { | |
1355 | if (rib_bogus_ipv6 (rib->type, &p, &nexthops[i], 0, 0)) { | |
1356 | continue; | |
1357 | } | |
1358 | nexthop_ipv6_add (rib, &nexthops[i]); | |
1359 | } | |
1360 | } | |
1361 | else { | |
1362 | if ((i < if_count) && ifindices[i]) { | |
1363 | if (rib_bogus_ipv6 (rib->type, &p, NULL, ifindices[i], 0)) { | |
1364 | continue; | |
1365 | } | |
1366 | nexthop_ifindex_add (rib, ifindices[i]); | |
1367 | } | |
1368 | } | |
1369 | } | |
718e3744 | 1370 | } |
1371 | ||
41fc2714 DS |
1372 | /* Distance. */ |
1373 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1374 | rib->distance = stream_getc (s); | |
718e3744 | 1375 | |
41fc2714 DS |
1376 | /* Metric. */ |
1377 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1378 | rib->metric = stream_getl (s); | |
718e3744 | 1379 | |
0d9551dc DS |
1380 | /* Tag */ |
1381 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1382 | rib->tag = stream_getw (s); | |
1383 | else | |
1384 | rib->tag = 0; | |
1385 | ||
41fc2714 DS |
1386 | /* Table */ |
1387 | rib->table=zebrad.rtm_table_default; | |
04b02fda DS |
1388 | ret = rib_add_ipv6_multipath (&p, rib, safi, ifindex); |
1389 | /* Stats */ | |
1390 | if (ret > 0) | |
1391 | client->v6_route_add_cnt++; | |
1392 | else if (ret < 0) | |
1393 | client->v6_route_upd8_cnt++; | |
1394 | ||
719e9741 | 1395 | return 0; |
718e3744 | 1396 | } |
1397 | ||
1398 | /* Zebra server IPv6 prefix delete function. */ | |
719e9741 | 1399 | static int |
718e3744 | 1400 | zread_ipv6_delete (struct zserv *client, u_short length) |
1401 | { | |
1402 | int i; | |
1403 | struct stream *s; | |
1404 | struct zapi_ipv6 api; | |
1405 | struct in6_addr nexthop; | |
1406 | unsigned long ifindex; | |
1407 | struct prefix_ipv6 p; | |
1408 | ||
1409 | s = client->ibuf; | |
1410 | ifindex = 0; | |
1411 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1412 | ||
1413 | /* Type, flags, message. */ | |
1414 | api.type = stream_getc (s); | |
7c8ff89e | 1415 | api.instance = stream_getw (s); |
718e3744 | 1416 | api.flags = stream_getc (s); |
1417 | api.message = stream_getc (s); | |
f768f367 | 1418 | api.safi = stream_getw (s); |
718e3744 | 1419 | |
1420 | /* IPv4 prefix. */ | |
1421 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1422 | p.family = AF_INET6; | |
1423 | p.prefixlen = stream_getc (s); | |
1424 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1425 | ||
1426 | /* Nexthop, ifindex, distance, metric. */ | |
1427 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1428 | { | |
1429 | u_char nexthop_type; | |
1430 | ||
1431 | api.nexthop_num = stream_getc (s); | |
1432 | for (i = 0; i < api.nexthop_num; i++) | |
1433 | { | |
1434 | nexthop_type = stream_getc (s); | |
1435 | ||
1436 | switch (nexthop_type) | |
1437 | { | |
1438 | case ZEBRA_NEXTHOP_IPV6: | |
1439 | stream_get (&nexthop, s, 16); | |
1440 | break; | |
1441 | case ZEBRA_NEXTHOP_IFINDEX: | |
1442 | ifindex = stream_getl (s); | |
1443 | break; | |
1444 | } | |
1445 | } | |
1446 | } | |
1447 | ||
0d9551dc | 1448 | /* Distance. */ |
718e3744 | 1449 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) |
1450 | api.distance = stream_getc (s); | |
1451 | else | |
1452 | api.distance = 0; | |
0d9551dc DS |
1453 | |
1454 | /* Metric. */ | |
718e3744 | 1455 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) |
1456 | api.metric = stream_getl (s); | |
1457 | else | |
1458 | api.metric = 0; | |
1459 | ||
0d9551dc DS |
1460 | /* tag */ |
1461 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1462 | api.tag = stream_getw (s); | |
1463 | else | |
1464 | api.tag = 0; | |
1465 | ||
718e3744 | 1466 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) |
7c8ff89e | 1467 | rib_delete_ipv6 (api.type, api.instance, api.flags, &p, NULL, ifindex, client->rtm_table, api.safi); |
718e3744 | 1468 | else |
7c8ff89e | 1469 | rib_delete_ipv6 (api.type, api.instance, api.flags, &p, &nexthop, ifindex, client->rtm_table, api.safi); |
04b02fda DS |
1470 | |
1471 | client->v6_route_del_cnt++; | |
719e9741 | 1472 | return 0; |
718e3744 | 1473 | } |
1474 | ||
719e9741 | 1475 | static int |
718e3744 | 1476 | zread_ipv6_nexthop_lookup (struct zserv *client, u_short length) |
1477 | { | |
1478 | struct in6_addr addr; | |
1479 | char buf[BUFSIZ]; | |
1480 | ||
1481 | stream_get (&addr, client->ibuf, 16); | |
a5207089 CF |
1482 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
1483 | zlog_debug("%s: looking up %s", __func__, | |
1484 | inet_ntop (AF_INET6, &addr, buf, BUFSIZ)); | |
718e3744 | 1485 | |
719e9741 | 1486 | return zsend_ipv6_nexthop_lookup (client, &addr); |
718e3744 | 1487 | } |
1488 | #endif /* HAVE_IPV6 */ | |
1489 | ||
18a6dce6 | 1490 | /* Register zebra server router-id information. Send current router-id */ |
719e9741 | 1491 | static int |
18a6dce6 | 1492 | zread_router_id_add (struct zserv *client, u_short length) |
1493 | { | |
1494 | struct prefix p; | |
1495 | ||
1496 | /* Router-id information is needed. */ | |
1497 | client->ridinfo = 1; | |
1498 | ||
1499 | router_id_get (&p); | |
1500 | ||
719e9741 | 1501 | return zsend_router_id_update (client,&p); |
18a6dce6 | 1502 | } |
1503 | ||
1504 | /* Unregister zebra server router-id information. */ | |
719e9741 | 1505 | static int |
18a6dce6 | 1506 | zread_router_id_delete (struct zserv *client, u_short length) |
1507 | { | |
1508 | client->ridinfo = 0; | |
719e9741 | 1509 | return 0; |
18a6dce6 | 1510 | } |
1511 | ||
2ea1ab1c VT |
1512 | /* Tie up route-type and client->sock */ |
1513 | static void | |
1514 | zread_hello (struct zserv *client) | |
1515 | { | |
1516 | /* type of protocol (lib/zebra.h) */ | |
1517 | u_char proto; | |
7c8ff89e DS |
1518 | u_short instance; |
1519 | ||
2ea1ab1c | 1520 | proto = stream_getc (client->ibuf); |
7c8ff89e | 1521 | instance = stream_getw (client->ibuf); |
2ea1ab1c VT |
1522 | |
1523 | /* accept only dynamic routing protocols */ | |
1524 | if ((proto < ZEBRA_ROUTE_MAX) | |
1525 | && (proto > ZEBRA_ROUTE_STATIC)) | |
1526 | { | |
1527 | zlog_notice ("client %d says hello and bids fair to announce only %s routes", | |
1528 | client->sock, zebra_route_string(proto)); | |
7c8ff89e DS |
1529 | if (instance) |
1530 | zlog_notice ("client protocol instance %d", instance); | |
2ea1ab1c | 1531 | |
fb018d25 | 1532 | client->proto = proto; |
7c8ff89e | 1533 | client->instance = instance; |
2ea1ab1c VT |
1534 | } |
1535 | } | |
1536 | ||
718e3744 | 1537 | /* Close zebra client. */ |
b9df2d25 | 1538 | static void |
718e3744 | 1539 | zebra_client_close (struct zserv *client) |
1540 | { | |
078430f6 DS |
1541 | zebra_cleanup_rnh_client(0, AF_INET, client, RNH_NEXTHOP_TYPE); |
1542 | zebra_cleanup_rnh_client(0, AF_INET6, client, RNH_NEXTHOP_TYPE); | |
1543 | zebra_cleanup_rnh_client(0, AF_INET, client, RNH_IMPORT_CHECK_TYPE); | |
1544 | zebra_cleanup_rnh_client(0, AF_INET6, client, RNH_IMPORT_CHECK_TYPE); | |
fb018d25 | 1545 | |
718e3744 | 1546 | /* Close file descriptor. */ |
1547 | if (client->sock) | |
1548 | { | |
7c8ff89e DS |
1549 | unsigned long nroutes; |
1550 | ||
718e3744 | 1551 | close (client->sock); |
7c8ff89e DS |
1552 | nroutes = rib_score_proto (client->proto, client->instance); |
1553 | zlog_notice ("client %d disconnected. %lu %s routes removed from the rib", | |
1554 | client->sock, nroutes, zebra_route_string (client->proto)); | |
718e3744 | 1555 | client->sock = -1; |
1556 | } | |
1557 | ||
1558 | /* Free stream buffers. */ | |
1559 | if (client->ibuf) | |
1560 | stream_free (client->ibuf); | |
1561 | if (client->obuf) | |
1562 | stream_free (client->obuf); | |
719e9741 | 1563 | if (client->wb) |
1564 | buffer_free(client->wb); | |
718e3744 | 1565 | |
1566 | /* Release threads. */ | |
1567 | if (client->t_read) | |
1568 | thread_cancel (client->t_read); | |
1569 | if (client->t_write) | |
1570 | thread_cancel (client->t_write); | |
719e9741 | 1571 | if (client->t_suicide) |
1572 | thread_cancel (client->t_suicide); | |
718e3744 | 1573 | |
1574 | /* Free client structure. */ | |
b21b19c5 | 1575 | listnode_delete (zebrad.client_list, client); |
718e3744 | 1576 | XFREE (0, client); |
1577 | } | |
1578 | ||
1579 | /* Make new client. */ | |
b9df2d25 | 1580 | static void |
718e3744 | 1581 | zebra_client_create (int sock) |
1582 | { | |
1583 | struct zserv *client; | |
1584 | ||
1585 | client = XCALLOC (0, sizeof (struct zserv)); | |
1586 | ||
1587 | /* Make client input/output buffer. */ | |
1588 | client->sock = sock; | |
1589 | client->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
1590 | client->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
719e9741 | 1591 | client->wb = buffer_new(0); |
718e3744 | 1592 | |
1593 | /* Set table number. */ | |
b21b19c5 | 1594 | client->rtm_table = zebrad.rtm_table_default; |
718e3744 | 1595 | |
04b02fda DS |
1596 | client->connect_time = quagga_time(NULL); |
1597 | ||
718e3744 | 1598 | /* Add this client to linked list. */ |
b21b19c5 | 1599 | listnode_add (zebrad.client_list, client); |
718e3744 | 1600 | |
1601 | /* Make new read thread. */ | |
1602 | zebra_event (ZEBRA_READ, sock, client); | |
1603 | } | |
1604 | ||
1605 | /* Handler of zebra service request. */ | |
b9df2d25 | 1606 | static int |
718e3744 | 1607 | zebra_client_read (struct thread *thread) |
1608 | { | |
1609 | int sock; | |
1610 | struct zserv *client; | |
57a1477b | 1611 | size_t already; |
c1b9800a | 1612 | uint16_t length, command; |
1613 | uint8_t marker, version; | |
718e3744 | 1614 | |
1615 | /* Get thread data. Reset reading thread because I'm running. */ | |
1616 | sock = THREAD_FD (thread); | |
1617 | client = THREAD_ARG (thread); | |
1618 | client->t_read = NULL; | |
1619 | ||
719e9741 | 1620 | if (client->t_suicide) |
718e3744 | 1621 | { |
719e9741 | 1622 | zebra_client_close(client); |
718e3744 | 1623 | return -1; |
1624 | } | |
719e9741 | 1625 | |
1626 | /* Read length and command (if we don't have it already). */ | |
57a1477b | 1627 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) |
719e9741 | 1628 | { |
57a1477b | 1629 | ssize_t nbyte; |
719e9741 | 1630 | if (((nbyte = stream_read_try (client->ibuf, sock, |
57a1477b | 1631 | ZEBRA_HEADER_SIZE-already)) == 0) || |
719e9741 | 1632 | (nbyte == -1)) |
1633 | { | |
1634 | if (IS_ZEBRA_DEBUG_EVENT) | |
1635 | zlog_debug ("connection closed socket [%d]", sock); | |
1636 | zebra_client_close (client); | |
1637 | return -1; | |
1638 | } | |
57a1477b | 1639 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE-already)) |
719e9741 | 1640 | { |
1641 | /* Try again later. */ | |
1642 | zebra_event (ZEBRA_READ, sock, client); | |
1643 | return 0; | |
1644 | } | |
57a1477b | 1645 | already = ZEBRA_HEADER_SIZE; |
719e9741 | 1646 | } |
1647 | ||
1648 | /* Reset to read from the beginning of the incoming packet. */ | |
1649 | stream_set_getp(client->ibuf, 0); | |
1650 | ||
c1b9800a | 1651 | /* Fetch header values */ |
718e3744 | 1652 | length = stream_getw (client->ibuf); |
c1b9800a | 1653 | marker = stream_getc (client->ibuf); |
1654 | version = stream_getc (client->ibuf); | |
1655 | command = stream_getw (client->ibuf); | |
718e3744 | 1656 | |
c1b9800a | 1657 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) |
1658 | { | |
1659 | zlog_err("%s: socket %d version mismatch, marker %d, version %d", | |
1660 | __func__, sock, marker, version); | |
1661 | zebra_client_close (client); | |
1662 | return -1; | |
1663 | } | |
719e9741 | 1664 | if (length < ZEBRA_HEADER_SIZE) |
718e3744 | 1665 | { |
57a1477b | 1666 | zlog_warn("%s: socket %d message length %u is less than header size %d", |
1667 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
1668 | zebra_client_close (client); | |
1669 | return -1; | |
1670 | } | |
1671 | if (length > STREAM_SIZE(client->ibuf)) | |
1672 | { | |
1673 | zlog_warn("%s: socket %d message length %u exceeds buffer size %lu", | |
1674 | __func__, sock, length, (u_long)STREAM_SIZE(client->ibuf)); | |
718e3744 | 1675 | zebra_client_close (client); |
1676 | return -1; | |
1677 | } | |
1678 | ||
718e3744 | 1679 | /* Read rest of data. */ |
57a1477b | 1680 | if (already < length) |
718e3744 | 1681 | { |
57a1477b | 1682 | ssize_t nbyte; |
1683 | if (((nbyte = stream_read_try (client->ibuf, sock, | |
1684 | length-already)) == 0) || | |
1685 | (nbyte == -1)) | |
718e3744 | 1686 | { |
1687 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1688 | zlog_debug ("connection closed [%d] when reading zebra data", sock); |
718e3744 | 1689 | zebra_client_close (client); |
1690 | return -1; | |
1691 | } | |
57a1477b | 1692 | if (nbyte != (ssize_t)(length-already)) |
719e9741 | 1693 | { |
1694 | /* Try again later. */ | |
1695 | zebra_event (ZEBRA_READ, sock, client); | |
1696 | return 0; | |
1697 | } | |
718e3744 | 1698 | } |
1699 | ||
719e9741 | 1700 | length -= ZEBRA_HEADER_SIZE; |
1701 | ||
718e3744 | 1702 | /* Debug packet information. */ |
1703 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1704 | zlog_debug ("zebra message comes from socket [%d]", sock); |
718e3744 | 1705 | |
1706 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
b6178002 | 1707 | zlog_debug ("zebra message received [%s] %d", |
66859780 | 1708 | zserv_command_string (command), length); |
718e3744 | 1709 | |
04b02fda DS |
1710 | client->last_read_time = quagga_time(NULL); |
1711 | client->last_read_cmd = command; | |
1712 | ||
718e3744 | 1713 | switch (command) |
1714 | { | |
18a6dce6 | 1715 | case ZEBRA_ROUTER_ID_ADD: |
1716 | zread_router_id_add (client, length); | |
1717 | break; | |
1718 | case ZEBRA_ROUTER_ID_DELETE: | |
1719 | zread_router_id_delete (client, length); | |
1720 | break; | |
718e3744 | 1721 | case ZEBRA_INTERFACE_ADD: |
1722 | zread_interface_add (client, length); | |
1723 | break; | |
1724 | case ZEBRA_INTERFACE_DELETE: | |
1725 | zread_interface_delete (client, length); | |
1726 | break; | |
1727 | case ZEBRA_IPV4_ROUTE_ADD: | |
1728 | zread_ipv4_add (client, length); | |
1729 | break; | |
1730 | case ZEBRA_IPV4_ROUTE_DELETE: | |
1731 | zread_ipv4_delete (client, length); | |
1732 | break; | |
1733 | #ifdef HAVE_IPV6 | |
1734 | case ZEBRA_IPV6_ROUTE_ADD: | |
1735 | zread_ipv6_add (client, length); | |
1736 | break; | |
1737 | case ZEBRA_IPV6_ROUTE_DELETE: | |
1738 | zread_ipv6_delete (client, length); | |
1739 | break; | |
1740 | #endif /* HAVE_IPV6 */ | |
1741 | case ZEBRA_REDISTRIBUTE_ADD: | |
1742 | zebra_redistribute_add (command, client, length); | |
1743 | break; | |
1744 | case ZEBRA_REDISTRIBUTE_DELETE: | |
1745 | zebra_redistribute_delete (command, client, length); | |
1746 | break; | |
1747 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
1748 | zebra_redistribute_default_add (command, client, length); | |
1749 | break; | |
1750 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
1751 | zebra_redistribute_default_delete (command, client, length); | |
1752 | break; | |
1753 | case ZEBRA_IPV4_NEXTHOP_LOOKUP: | |
1754 | zread_ipv4_nexthop_lookup (client, length); | |
1755 | break; | |
1756 | #ifdef HAVE_IPV6 | |
1757 | case ZEBRA_IPV6_NEXTHOP_LOOKUP: | |
1758 | zread_ipv6_nexthop_lookup (client, length); | |
1759 | break; | |
1760 | #endif /* HAVE_IPV6 */ | |
1761 | case ZEBRA_IPV4_IMPORT_LOOKUP: | |
1762 | zread_ipv4_import_lookup (client, length); | |
1763 | break; | |
2ea1ab1c VT |
1764 | case ZEBRA_HELLO: |
1765 | zread_hello (client); | |
1766 | break; | |
fb018d25 | 1767 | case ZEBRA_NEXTHOP_REGISTER: |
078430f6 | 1768 | zserv_rnh_register(client, sock, length, RNH_NEXTHOP_TYPE); |
fb018d25 DS |
1769 | break; |
1770 | case ZEBRA_NEXTHOP_UNREGISTER: | |
078430f6 DS |
1771 | zserv_rnh_unregister(client, sock, length, RNH_NEXTHOP_TYPE); |
1772 | break; | |
1773 | case ZEBRA_IMPORT_ROUTE_REGISTER: | |
1774 | zserv_rnh_register(client, sock, length, RNH_IMPORT_CHECK_TYPE); | |
1775 | break; | |
1776 | case ZEBRA_IMPORT_ROUTE_UNREGISTER: | |
1777 | zserv_rnh_unregister(client, sock, length, RNH_IMPORT_CHECK_TYPE); | |
fb018d25 | 1778 | break; |
718e3744 | 1779 | default: |
1780 | zlog_info ("Zebra received unknown command %d", command); | |
1781 | break; | |
1782 | } | |
1783 | ||
719e9741 | 1784 | if (client->t_suicide) |
1785 | { | |
1786 | /* No need to wait for thread callback, just kill immediately. */ | |
1787 | zebra_client_close(client); | |
1788 | return -1; | |
1789 | } | |
1790 | ||
718e3744 | 1791 | stream_reset (client->ibuf); |
1792 | zebra_event (ZEBRA_READ, sock, client); | |
718e3744 | 1793 | return 0; |
1794 | } | |
1795 | ||
718e3744 | 1796 | |
1797 | /* Accept code of zebra server socket. */ | |
b9df2d25 | 1798 | static int |
718e3744 | 1799 | zebra_accept (struct thread *thread) |
1800 | { | |
1801 | int accept_sock; | |
1802 | int client_sock; | |
1803 | struct sockaddr_in client; | |
1804 | socklen_t len; | |
1805 | ||
1806 | accept_sock = THREAD_FD (thread); | |
1807 | ||
719e9741 | 1808 | /* Reregister myself. */ |
1809 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1810 | ||
718e3744 | 1811 | len = sizeof (struct sockaddr_in); |
1812 | client_sock = accept (accept_sock, (struct sockaddr *) &client, &len); | |
1813 | ||
1814 | if (client_sock < 0) | |
1815 | { | |
6099b3b5 | 1816 | zlog_warn ("Can't accept zebra socket: %s", safe_strerror (errno)); |
718e3744 | 1817 | return -1; |
1818 | } | |
1819 | ||
ccf3557b | 1820 | /* Make client socket non-blocking. */ |
719e9741 | 1821 | set_nonblocking(client_sock); |
865b852c | 1822 | |
718e3744 | 1823 | /* Create new zebra client. */ |
1824 | zebra_client_create (client_sock); | |
1825 | ||
718e3744 | 1826 | return 0; |
1827 | } | |
1828 | ||
b9df2d25 | 1829 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 1830 | /* Make zebra's server socket. */ |
b9df2d25 | 1831 | static void |
718e3744 | 1832 | zebra_serv () |
1833 | { | |
1834 | int ret; | |
1835 | int accept_sock; | |
1836 | struct sockaddr_in addr; | |
1837 | ||
1838 | accept_sock = socket (AF_INET, SOCK_STREAM, 0); | |
1839 | ||
1840 | if (accept_sock < 0) | |
1841 | { | |
3d1dc857 | 1842 | zlog_warn ("Can't create zserv stream socket: %s", |
1843 | safe_strerror (errno)); | |
718e3744 | 1844 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1845 | return; | |
1846 | } | |
1847 | ||
1848 | memset (&addr, 0, sizeof (struct sockaddr_in)); | |
1849 | addr.sin_family = AF_INET; | |
1850 | addr.sin_port = htons (ZEBRA_PORT); | |
6f0e3f6e | 1851 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 1852 | addr.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 1853 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 1854 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
1855 | ||
1856 | sockopt_reuseaddr (accept_sock); | |
1857 | sockopt_reuseport (accept_sock); | |
1858 | ||
edd7c245 | 1859 | if ( zserv_privs.change(ZPRIVS_RAISE) ) |
1860 | zlog (NULL, LOG_ERR, "Can't raise privileges"); | |
1861 | ||
718e3744 | 1862 | ret = bind (accept_sock, (struct sockaddr *)&addr, |
1863 | sizeof (struct sockaddr_in)); | |
1864 | if (ret < 0) | |
1865 | { | |
3d1dc857 | 1866 | zlog_warn ("Can't bind to stream socket: %s", |
1867 | safe_strerror (errno)); | |
718e3744 | 1868 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1869 | close (accept_sock); /* Avoid sd leak. */ | |
1870 | return; | |
1871 | } | |
edd7c245 | 1872 | |
1873 | if ( zserv_privs.change(ZPRIVS_LOWER) ) | |
1874 | zlog (NULL, LOG_ERR, "Can't lower privileges"); | |
718e3744 | 1875 | |
1876 | ret = listen (accept_sock, 1); | |
1877 | if (ret < 0) | |
1878 | { | |
3d1dc857 | 1879 | zlog_warn ("Can't listen to stream socket: %s", |
1880 | safe_strerror (errno)); | |
718e3744 | 1881 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1882 | close (accept_sock); /* Avoid sd leak. */ | |
1883 | return; | |
1884 | } | |
1885 | ||
1886 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1887 | } | |
b9df2d25 | 1888 | #endif /* HAVE_TCP_ZEBRA */ |
718e3744 | 1889 | |
1890 | /* For sockaddr_un. */ | |
1891 | #include <sys/un.h> | |
1892 | ||
1893 | /* zebra server UNIX domain socket. */ | |
b9df2d25 | 1894 | static void |
fce954f8 | 1895 | zebra_serv_un (const char *path) |
718e3744 | 1896 | { |
1897 | int ret; | |
1898 | int sock, len; | |
1899 | struct sockaddr_un serv; | |
1900 | mode_t old_mask; | |
1901 | ||
1902 | /* First of all, unlink existing socket */ | |
1903 | unlink (path); | |
1904 | ||
1905 | /* Set umask */ | |
1906 | old_mask = umask (0077); | |
1907 | ||
1908 | /* Make UNIX domain socket. */ | |
1909 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
1910 | if (sock < 0) | |
1911 | { | |
3d1dc857 | 1912 | zlog_warn ("Can't create zserv unix socket: %s", |
1913 | safe_strerror (errno)); | |
1914 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1915 | return; |
1916 | } | |
1917 | ||
1918 | /* Make server socket. */ | |
1919 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
1920 | serv.sun_family = AF_UNIX; | |
1921 | strncpy (serv.sun_path, path, strlen (path)); | |
6f0e3f6e | 1922 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 1923 | len = serv.sun_len = SUN_LEN(&serv); |
1924 | #else | |
1925 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 1926 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 1927 | |
1928 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
1929 | if (ret < 0) | |
1930 | { | |
3d1dc857 | 1931 | zlog_warn ("Can't bind to unix socket %s: %s", |
1932 | path, safe_strerror (errno)); | |
1933 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1934 | close (sock); |
1935 | return; | |
1936 | } | |
1937 | ||
1938 | ret = listen (sock, 5); | |
1939 | if (ret < 0) | |
1940 | { | |
3d1dc857 | 1941 | zlog_warn ("Can't listen to unix socket %s: %s", |
1942 | path, safe_strerror (errno)); | |
1943 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1944 | close (sock); |
1945 | return; | |
1946 | } | |
1947 | ||
1948 | umask (old_mask); | |
1949 | ||
1950 | zebra_event (ZEBRA_SERV, sock, NULL); | |
1951 | } | |
6b0655a2 | 1952 | |
718e3744 | 1953 | |
b9df2d25 | 1954 | static void |
718e3744 | 1955 | zebra_event (enum event event, int sock, struct zserv *client) |
1956 | { | |
1957 | switch (event) | |
1958 | { | |
1959 | case ZEBRA_SERV: | |
b21b19c5 | 1960 | thread_add_read (zebrad.master, zebra_accept, client, sock); |
718e3744 | 1961 | break; |
1962 | case ZEBRA_READ: | |
1963 | client->t_read = | |
b21b19c5 | 1964 | thread_add_read (zebrad.master, zebra_client_read, client, sock); |
718e3744 | 1965 | break; |
1966 | case ZEBRA_WRITE: | |
1967 | /**/ | |
1968 | break; | |
1969 | } | |
1970 | } | |
6b0655a2 | 1971 | |
04b02fda DS |
1972 | #define ZEBRA_TIME_BUF 32 |
1973 | static char * | |
1974 | zserv_time_buf(time_t *time1, char *buf, int buflen) | |
1975 | { | |
1976 | struct tm *tm; | |
1977 | time_t now; | |
1978 | ||
1979 | assert (buf != NULL); | |
1980 | assert (buflen >= ZEBRA_TIME_BUF); | |
1981 | assert (time1 != NULL); | |
1982 | ||
1983 | if (!*time1) | |
1984 | { | |
1985 | snprintf(buf, buflen, "never "); | |
1986 | return (buf); | |
1987 | } | |
1988 | ||
1989 | now = quagga_time(NULL); | |
1990 | now -= *time1; | |
1991 | tm = gmtime(&now); | |
1992 | ||
1993 | /* Making formatted timer strings. */ | |
1994 | #define ONE_DAY_SECOND 60*60*24 | |
1995 | #define ONE_WEEK_SECOND 60*60*24*7 | |
1996 | ||
1997 | if (now < ONE_DAY_SECOND) | |
1998 | snprintf (buf, buflen, "%02d:%02d:%02d", | |
1999 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
2000 | else if (now < ONE_WEEK_SECOND) | |
2001 | snprintf (buf, buflen, "%dd%02dh%02dm", | |
2002 | tm->tm_yday, tm->tm_hour, tm->tm_min); | |
2003 | else | |
2004 | snprintf (buf, buflen, "%02dw%dd%02dh", | |
2005 | tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); | |
2006 | return buf; | |
2007 | } | |
2008 | ||
2009 | static void | |
2010 | zebra_show_client_detail (struct vty *vty, struct zserv *client) | |
2011 | { | |
2012 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2013 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
2014 | ||
7c8ff89e DS |
2015 | vty_out (vty, "Client: %s", zebra_route_string(client->proto)); |
2016 | if (client->instance) | |
2017 | vty_out (vty, " Instance: %d", client->instance); | |
2018 | vty_out (vty, "%s", VTY_NEWLINE); | |
2019 | ||
04b02fda DS |
2020 | vty_out (vty, "------------------------ %s", VTY_NEWLINE); |
2021 | vty_out (vty, "FD: %d %s", client->sock, VTY_NEWLINE); | |
2022 | vty_out (vty, "Route Table ID: %d %s", client->rtm_table, VTY_NEWLINE); | |
2023 | ||
2024 | vty_out (vty, "Connect Time: %s %s", | |
2025 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2026 | VTY_NEWLINE); | |
2027 | if (client->nh_reg_time) | |
2028 | { | |
2029 | vty_out (vty, "Nexthop Registry Time: %s %s", | |
2030 | zserv_time_buf(&client->nh_reg_time, nhbuf, ZEBRA_TIME_BUF), | |
2031 | VTY_NEWLINE); | |
2032 | if (client->nh_last_upd_time) | |
2033 | vty_out (vty, "Nexthop Last Update Time: %s %s", | |
2034 | zserv_time_buf(&client->nh_last_upd_time, mbuf, ZEBRA_TIME_BUF), | |
2035 | VTY_NEWLINE); | |
2036 | else | |
2037 | vty_out (vty, "No Nexthop Update sent%s", VTY_NEWLINE); | |
2038 | } | |
2039 | else | |
2040 | vty_out (vty, "Not registered for Nexthop Updates%s", VTY_NEWLINE); | |
2041 | ||
2042 | vty_out (vty, "Last Msg Rx Time: %s %s", | |
2043 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2044 | VTY_NEWLINE); | |
2045 | vty_out (vty, "Last Msg Tx Time: %s %s", | |
2046 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2047 | VTY_NEWLINE); | |
2048 | if (client->last_read_time) | |
2049 | vty_out (vty, "Last Rcvd Cmd: %s %s", | |
2050 | zserv_command_string(client->last_read_cmd), VTY_NEWLINE); | |
2051 | if (client->last_write_time) | |
2052 | vty_out (vty, "Last Sent Cmd: %s %s", | |
2053 | zserv_command_string(client->last_write_cmd), VTY_NEWLINE); | |
2054 | vty_out (vty, "%s", VTY_NEWLINE); | |
2055 | ||
2056 | vty_out (vty, "Type Add Update Del %s", VTY_NEWLINE); | |
2057 | vty_out (vty, "================================================== %s", VTY_NEWLINE); | |
2058 | vty_out (vty, "IPv4 %-12d%-12d%-12d%s", client->v4_route_add_cnt, | |
2059 | client->v4_route_upd8_cnt, client->v4_route_del_cnt, VTY_NEWLINE); | |
2060 | vty_out (vty, "IPv6 %-12d%-12d%-12d%s", client->v6_route_add_cnt, | |
2061 | client->v6_route_upd8_cnt, client->v6_route_del_cnt, VTY_NEWLINE); | |
2062 | vty_out (vty, "Redist:v4 %-12d%-12d%-12d%s", client->redist_v4_add_cnt, 0, | |
2063 | client->redist_v4_del_cnt, VTY_NEWLINE); | |
2064 | vty_out (vty, "Redist:v6 %-12d%-12d%-12d%s", client->redist_v6_add_cnt, 0, | |
2065 | client->redist_v6_del_cnt, VTY_NEWLINE); | |
2066 | vty_out (vty, "Connected %-12d%-12d%-12d%s", client->ifadd_cnt, 0, | |
2067 | client->ifdel_cnt, VTY_NEWLINE); | |
2068 | vty_out (vty, "Interface Up Notifications: %d%s", client->ifup_cnt, | |
2069 | VTY_NEWLINE); | |
2070 | vty_out (vty, "Interface Down Notifications: %d%s", client->ifdown_cnt, | |
2071 | VTY_NEWLINE); | |
2072 | ||
2073 | vty_out (vty, "%s", VTY_NEWLINE); | |
2074 | return; | |
2075 | } | |
2076 | ||
2077 | static void | |
2078 | zebra_show_client_brief (struct vty *vty, struct zserv *client) | |
2079 | { | |
2080 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2081 | char wbuf[ZEBRA_TIME_BUF]; | |
2082 | ||
2083 | vty_out (vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d%s", | |
2084 | zebra_route_string(client->proto), | |
2085 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2086 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2087 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2088 | client->v4_route_add_cnt+client->v4_route_upd8_cnt, | |
2089 | client->v4_route_del_cnt, | |
2090 | client->v6_route_add_cnt+client->v6_route_upd8_cnt, | |
2091 | client->v6_route_del_cnt, VTY_NEWLINE); | |
2092 | ||
2093 | } | |
2094 | ||
2095 | ||
718e3744 | 2096 | /* Display default rtm_table for all clients. */ |
2097 | DEFUN (show_table, | |
2098 | show_table_cmd, | |
2099 | "show table", | |
2100 | SHOW_STR | |
2101 | "default routing table to use for all clients\n") | |
2102 | { | |
b21b19c5 | 2103 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, |
718e3744 | 2104 | VTY_NEWLINE); |
2105 | return CMD_SUCCESS; | |
2106 | } | |
2107 | ||
2108 | DEFUN (config_table, | |
2109 | config_table_cmd, | |
2110 | "table TABLENO", | |
2111 | "Configure target kernel routing table\n" | |
2112 | "TABLE integer\n") | |
2113 | { | |
b21b19c5 | 2114 | zebrad.rtm_table_default = strtol (argv[0], (char**)0, 10); |
718e3744 | 2115 | return CMD_SUCCESS; |
2116 | } | |
2117 | ||
647e4f1f | 2118 | DEFUN (ip_forwarding, |
2119 | ip_forwarding_cmd, | |
2120 | "ip forwarding", | |
2121 | IP_STR | |
2122 | "Turn on IP forwarding") | |
2123 | { | |
2124 | int ret; | |
2125 | ||
2126 | ret = ipforward (); | |
b71f00f2 | 2127 | if (ret == 0) |
2128 | ret = ipforward_on (); | |
647e4f1f | 2129 | |
647e4f1f | 2130 | if (ret == 0) |
2131 | { | |
2132 | vty_out (vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
2133 | return CMD_WARNING; | |
2134 | } | |
2135 | ||
2136 | return CMD_SUCCESS; | |
2137 | } | |
2138 | ||
718e3744 | 2139 | DEFUN (no_ip_forwarding, |
2140 | no_ip_forwarding_cmd, | |
2141 | "no ip forwarding", | |
2142 | NO_STR | |
2143 | IP_STR | |
2144 | "Turn off IP forwarding") | |
2145 | { | |
2146 | int ret; | |
2147 | ||
2148 | ret = ipforward (); | |
b71f00f2 | 2149 | if (ret != 0) |
2150 | ret = ipforward_off (); | |
718e3744 | 2151 | |
718e3744 | 2152 | if (ret != 0) |
2153 | { | |
2154 | vty_out (vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
2155 | return CMD_WARNING; | |
2156 | } | |
2157 | ||
2158 | return CMD_SUCCESS; | |
2159 | } | |
2160 | ||
2161 | /* This command is for debugging purpose. */ | |
2162 | DEFUN (show_zebra_client, | |
2163 | show_zebra_client_cmd, | |
2164 | "show zebra client", | |
2165 | SHOW_STR | |
2166 | "Zebra information" | |
2167 | "Client information") | |
2168 | { | |
52dc7ee6 | 2169 | struct listnode *node; |
718e3744 | 2170 | struct zserv *client; |
2171 | ||
1eb8ef25 | 2172 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) |
04b02fda DS |
2173 | zebra_show_client_detail(vty, client); |
2174 | ||
2175 | return CMD_SUCCESS; | |
2176 | } | |
2177 | ||
2178 | /* This command is for debugging purpose. */ | |
2179 | DEFUN (show_zebra_client_summary, | |
2180 | show_zebra_client_summary_cmd, | |
2181 | "show zebra client summary", | |
2182 | SHOW_STR | |
2183 | "Zebra information brief" | |
2184 | "Client information brief") | |
2185 | { | |
2186 | struct listnode *node; | |
2187 | struct zserv *client; | |
2188 | ||
2189 | vty_out (vty, "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes %s", | |
2190 | VTY_NEWLINE); | |
2191 | vty_out (vty,"--------------------------------------------------------------------------------%s", | |
2192 | VTY_NEWLINE); | |
2193 | ||
2194 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) | |
2195 | zebra_show_client_brief(vty, client); | |
fb018d25 | 2196 | |
04b02fda | 2197 | vty_out (vty, "Routes column shows (added+updated)/deleted%s", VTY_NEWLINE); |
718e3744 | 2198 | return CMD_SUCCESS; |
2199 | } | |
2200 | ||
2201 | /* Table configuration write function. */ | |
b9df2d25 | 2202 | static int |
718e3744 | 2203 | config_write_table (struct vty *vty) |
2204 | { | |
b21b19c5 | 2205 | if (zebrad.rtm_table_default) |
2206 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, | |
718e3744 | 2207 | VTY_NEWLINE); |
2208 | return 0; | |
2209 | } | |
2210 | ||
2211 | /* table node for routing tables. */ | |
7fc626de | 2212 | static struct cmd_node table_node = |
718e3744 | 2213 | { |
2214 | TABLE_NODE, | |
2215 | "", /* This node has no interface. */ | |
2216 | 1 | |
2217 | }; | |
6b0655a2 | 2218 | |
718e3744 | 2219 | /* Only display ip forwarding is enabled or not. */ |
2220 | DEFUN (show_ip_forwarding, | |
2221 | show_ip_forwarding_cmd, | |
2222 | "show ip forwarding", | |
2223 | SHOW_STR | |
2224 | IP_STR | |
2225 | "IP forwarding status\n") | |
2226 | { | |
2227 | int ret; | |
2228 | ||
2229 | ret = ipforward (); | |
2230 | ||
2231 | if (ret == 0) | |
2232 | vty_out (vty, "IP forwarding is off%s", VTY_NEWLINE); | |
2233 | else | |
2234 | vty_out (vty, "IP forwarding is on%s", VTY_NEWLINE); | |
2235 | return CMD_SUCCESS; | |
2236 | } | |
2237 | ||
2238 | #ifdef HAVE_IPV6 | |
2239 | /* Only display ipv6 forwarding is enabled or not. */ | |
2240 | DEFUN (show_ipv6_forwarding, | |
2241 | show_ipv6_forwarding_cmd, | |
2242 | "show ipv6 forwarding", | |
2243 | SHOW_STR | |
2244 | "IPv6 information\n" | |
2245 | "Forwarding status\n") | |
2246 | { | |
2247 | int ret; | |
2248 | ||
2249 | ret = ipforward_ipv6 (); | |
2250 | ||
2251 | switch (ret) | |
2252 | { | |
2253 | case -1: | |
2254 | vty_out (vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
2255 | break; | |
2256 | case 0: | |
2257 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2258 | break; | |
2259 | case 1: | |
2260 | vty_out (vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
2261 | break; | |
2262 | default: | |
2263 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2264 | break; | |
2265 | } | |
2266 | return CMD_SUCCESS; | |
2267 | } | |
2268 | ||
55906724 | 2269 | DEFUN (ipv6_forwarding, |
2270 | ipv6_forwarding_cmd, | |
2271 | "ipv6 forwarding", | |
2272 | IPV6_STR | |
2273 | "Turn on IPv6 forwarding") | |
2274 | { | |
2275 | int ret; | |
2276 | ||
41d3fc96 | 2277 | ret = ipforward_ipv6 (); |
b71f00f2 | 2278 | if (ret == 0) |
2279 | ret = ipforward_ipv6_on (); | |
41d3fc96 | 2280 | |
41d3fc96 | 2281 | if (ret == 0) |
55906724 | 2282 | { |
2283 | vty_out (vty, "Can't turn on IPv6 forwarding%s", VTY_NEWLINE); | |
2284 | return CMD_WARNING; | |
2285 | } | |
2286 | ||
2287 | return CMD_SUCCESS; | |
2288 | } | |
2289 | ||
718e3744 | 2290 | DEFUN (no_ipv6_forwarding, |
2291 | no_ipv6_forwarding_cmd, | |
2292 | "no ipv6 forwarding", | |
2293 | NO_STR | |
55906724 | 2294 | IPV6_STR |
2295 | "Turn off IPv6 forwarding") | |
718e3744 | 2296 | { |
2297 | int ret; | |
2298 | ||
41d3fc96 | 2299 | ret = ipforward_ipv6 (); |
b71f00f2 | 2300 | if (ret != 0) |
2301 | ret = ipforward_ipv6_off (); | |
41d3fc96 | 2302 | |
718e3744 | 2303 | if (ret != 0) |
2304 | { | |
2305 | vty_out (vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
2306 | return CMD_WARNING; | |
2307 | } | |
2308 | ||
2309 | return CMD_SUCCESS; | |
2310 | } | |
2311 | ||
2312 | #endif /* HAVE_IPV6 */ | |
2313 | ||
2314 | /* IPForwarding configuration write function. */ | |
719e9741 | 2315 | static int |
718e3744 | 2316 | config_write_forwarding (struct vty *vty) |
2317 | { | |
18a6dce6 | 2318 | /* FIXME: Find better place for that. */ |
2319 | router_id_write (vty); | |
2320 | ||
3e0b3a56 | 2321 | if (ipforward ()) |
2322 | vty_out (vty, "ip forwarding%s", VTY_NEWLINE); | |
718e3744 | 2323 | #ifdef HAVE_IPV6 |
3e0b3a56 | 2324 | if (ipforward_ipv6 ()) |
2325 | vty_out (vty, "ipv6 forwarding%s", VTY_NEWLINE); | |
718e3744 | 2326 | #endif /* HAVE_IPV6 */ |
2327 | vty_out (vty, "!%s", VTY_NEWLINE); | |
2328 | return 0; | |
2329 | } | |
2330 | ||
2331 | /* table node for routing tables. */ | |
7fc626de | 2332 | static struct cmd_node forwarding_node = |
718e3744 | 2333 | { |
2334 | FORWARDING_NODE, | |
2335 | "", /* This node has no interface. */ | |
2336 | 1 | |
2337 | }; | |
2338 | ||
6b0655a2 | 2339 | |
718e3744 | 2340 | /* Initialisation of zebra and installation of commands. */ |
2341 | void | |
a1ac18c4 | 2342 | zebra_init (void) |
718e3744 | 2343 | { |
2344 | /* Client list init. */ | |
b21b19c5 | 2345 | zebrad.client_list = list_new (); |
718e3744 | 2346 | |
718e3744 | 2347 | /* Install configuration write function. */ |
2348 | install_node (&table_node, config_write_table); | |
2349 | install_node (&forwarding_node, config_write_forwarding); | |
2350 | ||
2351 | install_element (VIEW_NODE, &show_ip_forwarding_cmd); | |
2352 | install_element (ENABLE_NODE, &show_ip_forwarding_cmd); | |
647e4f1f | 2353 | install_element (CONFIG_NODE, &ip_forwarding_cmd); |
718e3744 | 2354 | install_element (CONFIG_NODE, &no_ip_forwarding_cmd); |
2355 | install_element (ENABLE_NODE, &show_zebra_client_cmd); | |
04b02fda | 2356 | install_element (ENABLE_NODE, &show_zebra_client_summary_cmd); |
718e3744 | 2357 | |
2358 | #ifdef HAVE_NETLINK | |
2359 | install_element (VIEW_NODE, &show_table_cmd); | |
2360 | install_element (ENABLE_NODE, &show_table_cmd); | |
2361 | install_element (CONFIG_NODE, &config_table_cmd); | |
2362 | #endif /* HAVE_NETLINK */ | |
2363 | ||
2364 | #ifdef HAVE_IPV6 | |
2365 | install_element (VIEW_NODE, &show_ipv6_forwarding_cmd); | |
2366 | install_element (ENABLE_NODE, &show_ipv6_forwarding_cmd); | |
55906724 | 2367 | install_element (CONFIG_NODE, &ipv6_forwarding_cmd); |
718e3744 | 2368 | install_element (CONFIG_NODE, &no_ipv6_forwarding_cmd); |
2369 | #endif /* HAVE_IPV6 */ | |
7514fb77 PJ |
2370 | |
2371 | /* Route-map */ | |
2372 | zebra_route_map_init (); | |
718e3744 | 2373 | } |
97be79f9 DO |
2374 | |
2375 | /* Make zebra server socket, wiping any existing one (see bug #403). */ | |
2376 | void | |
b5114685 | 2377 | zebra_zserv_socket_init (char *path) |
97be79f9 DO |
2378 | { |
2379 | #ifdef HAVE_TCP_ZEBRA | |
2380 | zebra_serv (); | |
2381 | #else | |
b5114685 | 2382 | zebra_serv_un (path ? path : ZEBRA_SERV_PATH); |
97be79f9 DO |
2383 | #endif /* HAVE_TCP_ZEBRA */ |
2384 | } |