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