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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" | |
718e3744 | 39 | |
40 | #include "zebra/zserv.h" | |
18a6dce6 | 41 | #include "zebra/router-id.h" |
718e3744 | 42 | #include "zebra/redistribute.h" |
43 | #include "zebra/debug.h" | |
44 | #include "zebra/ipforward.h" | |
45 | \f | |
46 | /* Event list of zebra. */ | |
47 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
48 | ||
b21b19c5 | 49 | extern struct zebra_t zebrad; |
718e3744 | 50 | |
b9df2d25 | 51 | static void zebra_event (enum event event, int sock, struct zserv *client); |
ccf3557b | 52 | |
edd7c245 | 53 | extern struct zebra_privs_t zserv_privs; |
718e3744 | 54 | \f |
55 | /* For logging of zebra meesages. */ | |
fce954f8 | 56 | static const char *zebra_command_str [] = |
718e3744 | 57 | { |
58 | "NULL", | |
59 | "ZEBRA_INTERFACE_ADD", | |
60 | "ZEBRA_INTERFACE_DELETE", | |
61 | "ZEBRA_INTERFACE_ADDRESS_ADD", | |
62 | "ZEBRA_INTERFACE_ADDRESS_DELETE", | |
63 | "ZEBRA_INTERFACE_UP", | |
64 | "ZEBRA_INTERFACE_DOWN", | |
65 | "ZEBRA_IPV4_ROUTE_ADD", | |
66 | "ZEBRA_IPV4_ROUTE_DELETE", | |
67 | "ZEBRA_IPV6_ROUTE_ADD", | |
68 | "ZEBRA_IPV6_ROUTE_DELETE", | |
69 | "ZEBRA_REDISTRIBUTE_ADD", | |
70 | "ZEBRA_REDISTRIBUTE_DELETE", | |
71 | "ZEBRA_REDISTRIBUTE_DEFAULT_ADD", | |
72 | "ZEBRA_REDISTRIBUTE_DEFAULT_DELETE", | |
73 | "ZEBRA_IPV4_NEXTHOP_LOOKUP", | |
74 | "ZEBRA_IPV6_NEXTHOP_LOOKUP", | |
75 | "ZEBRA_IPV4_IMPORT_LOOKUP", | |
18a6dce6 | 76 | "ZEBRA_IPV6_IMPORT_LOOKUP", |
77 | "ZEBRA_ROUTER_ID_ADD", | |
78 | "ZEBRA_ROUTER_ID_DELETE", | |
79 | "ZEBRA_ROUTER_ID_UPDATE" | |
718e3744 | 80 | }; |
81 | \f | |
ccf3557b | 82 | |
719e9741 | 83 | static void zebra_client_close (struct zserv *client); |
ccf3557b | 84 | |
719e9741 | 85 | static int |
86 | zserv_delayed_close(struct thread *thread) | |
ccf3557b | 87 | { |
719e9741 | 88 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 89 | |
719e9741 | 90 | client->t_suicide = NULL; |
91 | zebra_client_close(client); | |
ccf3557b | 92 | return 0; |
93 | } | |
94 | ||
719e9741 | 95 | static int |
96 | zserv_flush_data(struct thread *thread) | |
ccf3557b | 97 | { |
719e9741 | 98 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 99 | |
719e9741 | 100 | client->t_write = NULL; |
101 | if (client->t_suicide) | |
ccf3557b | 102 | { |
719e9741 | 103 | zebra_client_close(client); |
104 | return -1; | |
ccf3557b | 105 | } |
719e9741 | 106 | switch (buffer_flush_available(client->wb, client->sock)) |
ccf3557b | 107 | { |
719e9741 | 108 | case BUFFER_ERROR: |
109 | zlog_warn("%s: buffer_flush_available failed on zserv client fd %d, " | |
110 | "closing", __func__, client->sock); | |
111 | zebra_client_close(client); | |
112 | break; | |
113 | case BUFFER_PENDING: | |
114 | client->t_write = thread_add_write(zebrad.master, zserv_flush_data, | |
115 | client, client->sock); | |
116 | break; | |
117 | case BUFFER_EMPTY: | |
118 | break; | |
ccf3557b | 119 | } |
719e9741 | 120 | return 0; |
121 | } | |
ccf3557b | 122 | |
719e9741 | 123 | static int |
124 | zebra_server_send_message(struct zserv *client) | |
125 | { | |
126 | if (client->t_suicide) | |
127 | return -1; | |
128 | switch (buffer_write(client->wb, client->sock, STREAM_DATA(client->obuf), | |
129 | stream_get_endp(client->obuf))) | |
130 | { | |
131 | case BUFFER_ERROR: | |
132 | zlog_warn("%s: buffer_write failed to zserv client fd %d, closing", | |
133 | __func__, client->sock); | |
134 | /* Schedule a delayed close since many of the functions that call this | |
135 | one do not check the return code. They do not allow for the | |
136 | possibility that an I/O error may have caused the client to be | |
137 | deleted. */ | |
138 | client->t_suicide = thread_add_event(zebrad.master, zserv_delayed_close, | |
139 | client, 0); | |
140 | return -1; | |
141 | break; | |
142 | case BUFFER_EMPTY: | |
143 | THREAD_OFF(client->t_write); | |
144 | break; | |
145 | case BUFFER_PENDING: | |
146 | THREAD_WRITE_ON(zebrad.master, client->t_write, | |
147 | zserv_flush_data, client, client->sock); | |
148 | break; | |
149 | } | |
ccf3557b | 150 | return 0; |
151 | } | |
152 | ||
718e3744 | 153 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 154 | /* |
155 | * This function is called in the following situations: | |
156 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
157 | * from the client. | |
158 | * - at startup, when zebra figures out the available interfaces | |
159 | * - when an interface is added (where support for | |
160 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
161 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
162 | * received) | |
163 | */ | |
718e3744 | 164 | int |
165 | zsend_interface_add (struct zserv *client, struct interface *ifp) | |
166 | { | |
167 | struct stream *s; | |
168 | ||
169 | /* Check this client need interface information. */ | |
170 | if (! client->ifinfo) | |
719e9741 | 171 | return 0; |
718e3744 | 172 | |
173 | s = client->obuf; | |
174 | stream_reset (s); | |
175 | ||
176 | /* Place holder for size. */ | |
177 | stream_putw (s, 0); | |
178 | ||
179 | /* Message type. */ | |
180 | stream_putc (s, ZEBRA_INTERFACE_ADD); | |
181 | ||
182 | /* Interface information. */ | |
183 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
184 | stream_putl (s, ifp->ifindex); | |
2e3b2e47 | 185 | stream_putc (s, ifp->status); |
718e3744 | 186 | stream_putl (s, ifp->flags); |
187 | stream_putl (s, ifp->metric); | |
188 | stream_putl (s, ifp->mtu); | |
b9df2d25 | 189 | stream_putl (s, ifp->mtu6); |
718e3744 | 190 | stream_putl (s, ifp->bandwidth); |
191 | #ifdef HAVE_SOCKADDR_DL | |
192 | stream_put (s, &ifp->sdl, sizeof (ifp->sdl)); | |
193 | #else | |
194 | stream_putl (s, ifp->hw_addr_len); | |
195 | if (ifp->hw_addr_len) | |
196 | stream_put (s, ifp->hw_addr, ifp->hw_addr_len); | |
197 | #endif /* HAVE_SOCKADDR_DL */ | |
198 | ||
199 | /* Write packet size. */ | |
200 | stream_putw_at (s, 0, stream_get_endp (s)); | |
201 | ||
719e9741 | 202 | return zebra_server_send_message(client); |
718e3744 | 203 | } |
204 | ||
205 | /* Interface deletion from zebra daemon. */ | |
206 | int | |
207 | zsend_interface_delete (struct zserv *client, struct interface *ifp) | |
208 | { | |
209 | struct stream *s; | |
210 | ||
211 | /* Check this client need interface information. */ | |
212 | if (! client->ifinfo) | |
719e9741 | 213 | return 0; |
718e3744 | 214 | |
215 | s = client->obuf; | |
216 | stream_reset (s); | |
217 | ||
218 | /* Packet length placeholder. */ | |
219 | stream_putw (s, 0); | |
220 | ||
221 | /* Interface information. */ | |
222 | stream_putc (s, ZEBRA_INTERFACE_DELETE); | |
223 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
224 | stream_putl (s, ifp->ifindex); | |
2e3b2e47 | 225 | stream_putc (s, ifp->status); |
718e3744 | 226 | stream_putl (s, ifp->flags); |
227 | stream_putl (s, ifp->metric); | |
228 | stream_putl (s, ifp->mtu); | |
b9df2d25 | 229 | stream_putl (s, ifp->mtu6); |
718e3744 | 230 | stream_putl (s, ifp->bandwidth); |
231 | ||
232 | /* Write packet length. */ | |
233 | stream_putw_at (s, 0, stream_get_endp (s)); | |
234 | ||
719e9741 | 235 | return zebra_server_send_message (client); |
718e3744 | 236 | } |
237 | ||
b9df2d25 | 238 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
239 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
240 | * | |
241 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
242 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
243 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
244 | * sent from zebra to the client | |
245 | * - redistribute new address info to all clients in the following situations | |
246 | * - at startup, when zebra figures out the available interfaces | |
247 | * - when an interface is added (where support for | |
248 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
249 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
250 | * received) | |
251 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
252 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
253 | * - when an RTM_NEWADDR message is received from the kernel, | |
254 | * | |
255 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
256 | * | |
257 | * zsend_interface_address(DELETE) | |
258 | * ^ | |
259 | * | | |
260 | * zebra_interface_address_delete_update | |
261 | * ^ ^ ^ | |
6eb8827d | 262 | * | | if_delete_update |
263 | * | | | |
b9df2d25 | 264 | * ip_address_uninstall connected_delete_ipv4 |
265 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
266 | * ^ ^ | |
267 | * | | | |
268 | * | RTM_NEWADDR on routing/netlink socket | |
269 | * | | |
270 | * vty commands: | |
271 | * "no ip address A.B.C.D/M [label LINE]" | |
272 | * "no ip address A.B.C.D/M secondary" | |
273 | * ["no ipv6 address X:X::X:X/M"] | |
274 | * | |
275 | */ | |
718e3744 | 276 | int |
b9df2d25 | 277 | zsend_interface_address (int cmd, struct zserv *client, |
278 | struct interface *ifp, struct connected *ifc) | |
718e3744 | 279 | { |
280 | int blen; | |
281 | struct stream *s; | |
282 | struct prefix *p; | |
283 | ||
284 | /* Check this client need interface information. */ | |
285 | if (! client->ifinfo) | |
719e9741 | 286 | return 0; |
718e3744 | 287 | |
288 | s = client->obuf; | |
289 | stream_reset (s); | |
290 | ||
291 | /* Place holder for size. */ | |
292 | stream_putw (s, 0); | |
293 | ||
b9df2d25 | 294 | stream_putc (s, cmd); |
718e3744 | 295 | stream_putl (s, ifp->ifindex); |
296 | ||
297 | /* Interface address flag. */ | |
298 | stream_putc (s, ifc->flags); | |
299 | ||
300 | /* Prefix information. */ | |
301 | p = ifc->address; | |
302 | stream_putc (s, p->family); | |
303 | blen = prefix_blen (p); | |
304 | stream_put (s, &p->u.prefix, blen); | |
b9df2d25 | 305 | |
306 | /* | |
307 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
308 | * but zebra_interface_address_delete_read() in the gnu version | |
309 | * expects to find it | |
310 | */ | |
718e3744 | 311 | stream_putc (s, p->prefixlen); |
312 | ||
313 | /* Destination. */ | |
314 | p = ifc->destination; | |
315 | if (p) | |
316 | stream_put (s, &p->u.prefix, blen); | |
317 | else | |
318 | stream_put (s, NULL, blen); | |
319 | ||
320 | /* Write packet size. */ | |
321 | stream_putw_at (s, 0, stream_get_endp (s)); | |
322 | ||
719e9741 | 323 | return zebra_server_send_message(client); |
718e3744 | 324 | } |
325 | ||
b9df2d25 | 326 | /* |
327 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
328 | * ZEBRA_INTERFACE_DOWN. | |
329 | * | |
330 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
331 | * the clients in one of 2 situations: | |
332 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
333 | * - a vty command modifying the bandwidth of an interface is received. | |
334 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
335 | */ | |
718e3744 | 336 | int |
b9df2d25 | 337 | zsend_interface_update (int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 338 | { |
339 | struct stream *s; | |
340 | ||
341 | /* Check this client need interface information. */ | |
342 | if (! client->ifinfo) | |
719e9741 | 343 | return 0; |
718e3744 | 344 | |
345 | s = client->obuf; | |
346 | stream_reset (s); | |
347 | ||
348 | /* Place holder for size. */ | |
349 | stream_putw (s, 0); | |
350 | ||
351 | /* Zebra command. */ | |
b9df2d25 | 352 | stream_putc (s, cmd); |
718e3744 | 353 | |
354 | /* Interface information. */ | |
355 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
356 | stream_putl (s, ifp->ifindex); | |
2e3b2e47 | 357 | stream_putc (s, ifp->status); |
718e3744 | 358 | stream_putl (s, ifp->flags); |
359 | stream_putl (s, ifp->metric); | |
360 | stream_putl (s, ifp->mtu); | |
b9df2d25 | 361 | stream_putl (s, ifp->mtu6); |
718e3744 | 362 | stream_putl (s, ifp->bandwidth); |
363 | ||
364 | /* Write packet size. */ | |
365 | stream_putw_at (s, 0, stream_get_endp (s)); | |
366 | ||
719e9741 | 367 | return zebra_server_send_message(client); |
718e3744 | 368 | } |
369 | ||
b9df2d25 | 370 | /* |
371 | * The zebra server sends the clients a ZEBRA_IPV4_ROUTE_ADD or a | |
372 | * ZEBRA_IPV6_ROUTE_ADD via zsend_route_multipath in the following | |
373 | * situations: | |
374 | * - when the client starts up, and requests default information | |
375 | * by sending a ZEBRA_REDISTRIBUTE_DEFAULT_ADD to the zebra server, in the | |
376 | * - case of rip, ripngd, ospfd and ospf6d, when the client sends a | |
377 | * ZEBRA_REDISTRIBUTE_ADD as a result of the "redistribute" vty cmd, | |
378 | * - when the zebra server redistributes routes after it updates its rib | |
379 | * | |
380 | * The zebra server sends clients a ZEBRA_IPV4_ROUTE_DELETE or a | |
381 | * ZEBRA_IPV6_ROUTE_DELETE via zsend_route_multipath when: | |
382 | * - a "ip route" or "ipv6 route" vty command is issued, a prefix is | |
383 | * - deleted from zebra's rib, and this info | |
384 | * has to be redistributed to the clients | |
385 | * | |
386 | * XXX The ZEBRA_IPV*_ROUTE_ADD message is also sent by the client to the | |
387 | * zebra server when the client wants to tell the zebra server to add a | |
388 | * route to the kernel (zapi_ipv4_add etc. ). Since it's essentially the | |
389 | * same message being sent back and forth, this function and | |
390 | * zapi_ipv{4,6}_{add, delete} should be re-written to avoid code | |
391 | * duplication. | |
392 | */ | |
718e3744 | 393 | int |
b9df2d25 | 394 | zsend_route_multipath (int cmd, struct zserv *client, struct prefix *p, |
395 | struct rib *rib) | |
718e3744 | 396 | { |
397 | int psize; | |
398 | struct stream *s; | |
399 | struct nexthop *nexthop; | |
1dcb5172 | 400 | unsigned long nhnummark = 0, messmark = 0; |
b9df2d25 | 401 | int nhnum = 0; |
1dcb5172 | 402 | u_char zapi_flags = 0; |
b9df2d25 | 403 | |
718e3744 | 404 | s = client->obuf; |
405 | stream_reset (s); | |
406 | ||
407 | /* Place holder for size. */ | |
408 | stream_putw (s, 0); | |
409 | ||
410 | /* Put command, type and nexthop. */ | |
b9df2d25 | 411 | stream_putc (s, cmd); |
718e3744 | 412 | stream_putc (s, rib->type); |
413 | stream_putc (s, rib->flags); | |
1dcb5172 | 414 | |
415 | /* marker for message flags field */ | |
416 | messmark = stream_get_endp (s); | |
417 | stream_putc (s, 0); | |
718e3744 | 418 | |
419 | /* Prefix. */ | |
420 | psize = PSIZE (p->prefixlen); | |
421 | stream_putc (s, p->prefixlen); | |
b9df2d25 | 422 | stream_write (s, (u_char *) & p->u.prefix, psize); |
423 | ||
424 | /* | |
425 | * XXX The message format sent by zebra below does not match the format | |
426 | * of the corresponding message expected by the zebra server | |
427 | * itself (e.g., see zread_ipv4_add). The nexthop_num is not set correctly, | |
428 | * (is there a bug on the client side if more than one segment is sent?) | |
429 | * nexthop ZEBRA_NEXTHOP_IPV4 is never set, ZEBRA_NEXTHOP_IFINDEX | |
430 | * is hard-coded. | |
431 | */ | |
718e3744 | 432 | /* Nexthop */ |
1dcb5172 | 433 | |
718e3744 | 434 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
435 | { | |
436 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
b9df2d25 | 437 | { |
1dcb5172 | 438 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); |
439 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
440 | ||
441 | if (nhnummark == 0) | |
442 | { | |
443 | nhnummark = stream_get_endp (s); | |
444 | stream_putc (s, 1); /* placeholder */ | |
445 | } | |
446 | ||
b9df2d25 | 447 | nhnum++; |
448 | ||
449 | switch(nexthop->type) | |
450 | { | |
451 | case NEXTHOP_TYPE_IPV4: | |
452 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
453 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
454 | break; | |
718e3744 | 455 | #ifdef HAVE_IPV6 |
b9df2d25 | 456 | case NEXTHOP_TYPE_IPV6: |
457 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
458 | case NEXTHOP_TYPE_IPV6_IFNAME: | |
459 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); | |
460 | break; | |
461 | #endif | |
462 | default: | |
463 | if (cmd == ZEBRA_IPV4_ROUTE_ADD | |
464 | || cmd == ZEBRA_IPV4_ROUTE_DELETE) | |
465 | { | |
466 | struct in_addr empty; | |
44983cf8 | 467 | memset (&empty, 0, sizeof (struct in_addr)); |
b9df2d25 | 468 | stream_write (s, (u_char *) &empty, IPV4_MAX_BYTELEN); |
469 | } | |
470 | else | |
471 | { | |
472 | struct in6_addr empty; | |
473 | memset (&empty, 0, sizeof (struct in6_addr)); | |
474 | stream_write (s, (u_char *) &empty, IPV6_MAX_BYTELEN); | |
475 | } | |
476 | } | |
477 | ||
478 | /* Interface index. */ | |
479 | stream_putc (s, 1); | |
480 | stream_putl (s, nexthop->ifindex); | |
481 | ||
482 | break; | |
483 | } | |
718e3744 | 484 | } |
485 | ||
486 | /* Metric */ | |
1dcb5172 | 487 | if (cmd == ZEBRA_IPV4_ROUTE_ADD || ZEBRA_IPV6_ROUTE_ADD) |
488 | { | |
489 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_METRIC); | |
490 | stream_putl (s, rib->metric); | |
491 | } | |
492 | ||
493 | /* write real message flags value */ | |
494 | stream_putc_at (s, messmark, zapi_flags); | |
495 | ||
b9df2d25 | 496 | /* Write next-hop number */ |
497 | if (nhnummark) | |
c1eaa442 | 498 | stream_putc_at (s, nhnummark, nhnum); |
b9df2d25 | 499 | |
718e3744 | 500 | /* Write packet size. */ |
501 | stream_putw_at (s, 0, stream_get_endp (s)); | |
502 | ||
719e9741 | 503 | return zebra_server_send_message(client); |
718e3744 | 504 | } |
505 | ||
b9df2d25 | 506 | #ifdef HAVE_IPV6 |
719e9741 | 507 | static int |
718e3744 | 508 | zsend_ipv6_nexthop_lookup (struct zserv *client, struct in6_addr *addr) |
509 | { | |
510 | struct stream *s; | |
511 | struct rib *rib; | |
512 | unsigned long nump; | |
513 | u_char num; | |
514 | struct nexthop *nexthop; | |
515 | ||
516 | /* Lookup nexthop. */ | |
517 | rib = rib_match_ipv6 (addr); | |
518 | ||
519 | /* Get output stream. */ | |
520 | s = client->obuf; | |
521 | stream_reset (s); | |
522 | ||
523 | /* Fill in result. */ | |
524 | stream_putw (s, 0); | |
525 | stream_putc (s, ZEBRA_IPV6_NEXTHOP_LOOKUP); | |
526 | stream_put (s, &addr, 16); | |
527 | ||
528 | if (rib) | |
529 | { | |
530 | stream_putl (s, rib->metric); | |
531 | num = 0; | |
9985f83c | 532 | nump = stream_get_endp(s); |
718e3744 | 533 | stream_putc (s, 0); |
534 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
535 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
536 | { | |
537 | stream_putc (s, nexthop->type); | |
538 | switch (nexthop->type) | |
539 | { | |
540 | case ZEBRA_NEXTHOP_IPV6: | |
541 | stream_put (s, &nexthop->gate.ipv6, 16); | |
542 | break; | |
543 | case ZEBRA_NEXTHOP_IPV6_IFINDEX: | |
544 | case ZEBRA_NEXTHOP_IPV6_IFNAME: | |
545 | stream_put (s, &nexthop->gate.ipv6, 16); | |
546 | stream_putl (s, nexthop->ifindex); | |
547 | break; | |
548 | case ZEBRA_NEXTHOP_IFINDEX: | |
549 | case ZEBRA_NEXTHOP_IFNAME: | |
550 | stream_putl (s, nexthop->ifindex); | |
551 | break; | |
fa2b17e3 | 552 | default: |
553 | /* do nothing */ | |
554 | break; | |
718e3744 | 555 | } |
556 | num++; | |
557 | } | |
558 | stream_putc_at (s, nump, num); | |
559 | } | |
560 | else | |
561 | { | |
562 | stream_putl (s, 0); | |
563 | stream_putc (s, 0); | |
564 | } | |
565 | ||
566 | stream_putw_at (s, 0, stream_get_endp (s)); | |
567 | ||
719e9741 | 568 | return zebra_server_send_message(client); |
718e3744 | 569 | } |
570 | #endif /* HAVE_IPV6 */ | |
571 | ||
b9df2d25 | 572 | static int |
718e3744 | 573 | zsend_ipv4_nexthop_lookup (struct zserv *client, struct in_addr addr) |
574 | { | |
575 | struct stream *s; | |
576 | struct rib *rib; | |
577 | unsigned long nump; | |
578 | u_char num; | |
579 | struct nexthop *nexthop; | |
580 | ||
581 | /* Lookup nexthop. */ | |
582 | rib = rib_match_ipv4 (addr); | |
583 | ||
584 | /* Get output stream. */ | |
585 | s = client->obuf; | |
586 | stream_reset (s); | |
587 | ||
588 | /* Fill in result. */ | |
589 | stream_putw (s, 0); | |
590 | stream_putc (s, ZEBRA_IPV4_NEXTHOP_LOOKUP); | |
591 | stream_put_in_addr (s, &addr); | |
592 | ||
593 | if (rib) | |
594 | { | |
595 | stream_putl (s, rib->metric); | |
596 | num = 0; | |
9985f83c | 597 | nump = stream_get_endp(s); |
718e3744 | 598 | stream_putc (s, 0); |
599 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
600 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
601 | { | |
602 | stream_putc (s, nexthop->type); | |
603 | switch (nexthop->type) | |
604 | { | |
605 | case ZEBRA_NEXTHOP_IPV4: | |
606 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
607 | break; | |
608 | case ZEBRA_NEXTHOP_IFINDEX: | |
609 | case ZEBRA_NEXTHOP_IFNAME: | |
610 | stream_putl (s, nexthop->ifindex); | |
611 | break; | |
fa2b17e3 | 612 | default: |
613 | /* do nothing */ | |
614 | break; | |
718e3744 | 615 | } |
616 | num++; | |
617 | } | |
618 | stream_putc_at (s, nump, num); | |
619 | } | |
620 | else | |
621 | { | |
622 | stream_putl (s, 0); | |
623 | stream_putc (s, 0); | |
624 | } | |
625 | ||
626 | stream_putw_at (s, 0, stream_get_endp (s)); | |
627 | ||
719e9741 | 628 | return zebra_server_send_message(client); |
718e3744 | 629 | } |
630 | ||
b9df2d25 | 631 | static int |
718e3744 | 632 | zsend_ipv4_import_lookup (struct zserv *client, struct prefix_ipv4 *p) |
633 | { | |
634 | struct stream *s; | |
635 | struct rib *rib; | |
636 | unsigned long nump; | |
637 | u_char num; | |
638 | struct nexthop *nexthop; | |
639 | ||
640 | /* Lookup nexthop. */ | |
641 | rib = rib_lookup_ipv4 (p); | |
642 | ||
643 | /* Get output stream. */ | |
644 | s = client->obuf; | |
645 | stream_reset (s); | |
646 | ||
647 | /* Fill in result. */ | |
648 | stream_putw (s, 0); | |
649 | stream_putc (s, ZEBRA_IPV4_IMPORT_LOOKUP); | |
650 | stream_put_in_addr (s, &p->prefix); | |
651 | ||
652 | if (rib) | |
653 | { | |
654 | stream_putl (s, rib->metric); | |
655 | num = 0; | |
9985f83c | 656 | nump = stream_get_endp(s); |
718e3744 | 657 | stream_putc (s, 0); |
658 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
659 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
660 | { | |
661 | stream_putc (s, nexthop->type); | |
662 | switch (nexthop->type) | |
663 | { | |
664 | case ZEBRA_NEXTHOP_IPV4: | |
665 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
666 | break; | |
667 | case ZEBRA_NEXTHOP_IFINDEX: | |
668 | case ZEBRA_NEXTHOP_IFNAME: | |
669 | stream_putl (s, nexthop->ifindex); | |
670 | break; | |
fa2b17e3 | 671 | default: |
672 | /* do nothing */ | |
673 | break; | |
718e3744 | 674 | } |
675 | num++; | |
676 | } | |
677 | stream_putc_at (s, nump, num); | |
678 | } | |
679 | else | |
680 | { | |
681 | stream_putl (s, 0); | |
682 | stream_putc (s, 0); | |
683 | } | |
684 | ||
685 | stream_putw_at (s, 0, stream_get_endp (s)); | |
686 | ||
719e9741 | 687 | return zebra_server_send_message(client); |
718e3744 | 688 | } |
689 | \f | |
18a6dce6 | 690 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
691 | int | |
692 | zsend_router_id_update (struct zserv *client, struct prefix *p) | |
693 | { | |
694 | struct stream *s; | |
695 | int blen; | |
696 | ||
697 | /* Check this client need interface information. */ | |
698 | if (!client->ridinfo) | |
719e9741 | 699 | return 0; |
18a6dce6 | 700 | |
701 | s = client->obuf; | |
702 | stream_reset (s); | |
703 | ||
704 | /* Place holder for size. */ | |
705 | stream_putw (s, 0); | |
706 | ||
707 | /* Message type. */ | |
708 | stream_putc (s, ZEBRA_ROUTER_ID_UPDATE); | |
709 | ||
710 | /* Prefix information. */ | |
711 | stream_putc (s, p->family); | |
712 | blen = prefix_blen (p); | |
713 | stream_put (s, &p->u.prefix, blen); | |
714 | stream_putc (s, p->prefixlen); | |
715 | ||
716 | /* Write packet size. */ | |
717 | stream_putw_at (s, 0, stream_get_endp (s)); | |
718 | ||
719e9741 | 719 | return zebra_server_send_message(client); |
18a6dce6 | 720 | } |
721 | \f | |
718e3744 | 722 | /* Register zebra server interface information. Send current all |
723 | interface and address information. */ | |
719e9741 | 724 | static int |
718e3744 | 725 | zread_interface_add (struct zserv *client, u_short length) |
726 | { | |
1eb8ef25 | 727 | struct listnode *ifnode, *ifnnode; |
728 | struct listnode *cnode, *cnnode; | |
718e3744 | 729 | struct interface *ifp; |
730 | struct connected *c; | |
731 | ||
732 | /* Interface information is needed. */ | |
733 | client->ifinfo = 1; | |
734 | ||
1eb8ef25 | 735 | for (ALL_LIST_ELEMENTS (iflist, ifnode, ifnnode, ifp)) |
718e3744 | 736 | { |
718e3744 | 737 | /* Skip pseudo interface. */ |
738 | if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
739 | continue; | |
740 | ||
719e9741 | 741 | if (zsend_interface_add (client, ifp) < 0) |
742 | return -1; | |
718e3744 | 743 | |
1eb8ef25 | 744 | for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, c)) |
718e3744 | 745 | { |
719e9741 | 746 | if (CHECK_FLAG (c->conf, ZEBRA_IFC_REAL) && |
747 | (zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
748 | ifp, c) < 0)) | |
749 | return -1; | |
718e3744 | 750 | } |
751 | } | |
719e9741 | 752 | return 0; |
718e3744 | 753 | } |
754 | ||
755 | /* Unregister zebra server interface information. */ | |
719e9741 | 756 | static int |
718e3744 | 757 | zread_interface_delete (struct zserv *client, u_short length) |
758 | { | |
759 | client->ifinfo = 0; | |
719e9741 | 760 | return 0; |
718e3744 | 761 | } |
762 | ||
763 | /* This function support multiple nexthop. */ | |
b9df2d25 | 764 | /* |
765 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update rib and | |
766 | * add kernel route. | |
767 | */ | |
719e9741 | 768 | static int |
718e3744 | 769 | zread_ipv4_add (struct zserv *client, u_short length) |
770 | { | |
771 | int i; | |
772 | struct rib *rib; | |
773 | struct prefix_ipv4 p; | |
774 | u_char message; | |
775 | struct in_addr nexthop; | |
776 | u_char nexthop_num; | |
777 | u_char nexthop_type; | |
778 | struct stream *s; | |
779 | unsigned int ifindex; | |
780 | u_char ifname_len; | |
781 | ||
782 | /* Get input stream. */ | |
783 | s = client->ibuf; | |
784 | ||
785 | /* Allocate new rib. */ | |
4d38fdb4 | 786 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); |
787 | ||
718e3744 | 788 | /* Type, flags, message. */ |
789 | rib->type = stream_getc (s); | |
790 | rib->flags = stream_getc (s); | |
b9df2d25 | 791 | message = stream_getc (s); |
718e3744 | 792 | rib->uptime = time (NULL); |
793 | ||
794 | /* IPv4 prefix. */ | |
795 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
796 | p.family = AF_INET; | |
797 | p.prefixlen = stream_getc (s); | |
798 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
799 | ||
800 | /* Nexthop parse. */ | |
801 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
802 | { | |
803 | nexthop_num = stream_getc (s); | |
804 | ||
805 | for (i = 0; i < nexthop_num; i++) | |
806 | { | |
807 | nexthop_type = stream_getc (s); | |
808 | ||
809 | switch (nexthop_type) | |
810 | { | |
811 | case ZEBRA_NEXTHOP_IFINDEX: | |
812 | ifindex = stream_getl (s); | |
813 | nexthop_ifindex_add (rib, ifindex); | |
814 | break; | |
815 | case ZEBRA_NEXTHOP_IFNAME: | |
816 | ifname_len = stream_getc (s); | |
9985f83c | 817 | stream_forward_getp (s, ifname_len); |
718e3744 | 818 | break; |
819 | case ZEBRA_NEXTHOP_IPV4: | |
820 | nexthop.s_addr = stream_get_ipv4 (s); | |
821 | nexthop_ipv4_add (rib, &nexthop); | |
822 | break; | |
823 | case ZEBRA_NEXTHOP_IPV6: | |
9985f83c | 824 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 825 | break; |
595db7f1 | 826 | case ZEBRA_NEXTHOP_BLACKHOLE: |
827 | nexthop_blackhole_add (rib); | |
828 | break; | |
718e3744 | 829 | } |
830 | } | |
831 | } | |
832 | ||
833 | /* Distance. */ | |
834 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
835 | rib->distance = stream_getc (s); | |
836 | ||
837 | /* Metric. */ | |
838 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
839 | rib->metric = stream_getl (s); | |
840 | ||
841 | rib_add_ipv4_multipath (&p, rib); | |
719e9741 | 842 | return 0; |
718e3744 | 843 | } |
844 | ||
845 | /* Zebra server IPv4 prefix delete function. */ | |
719e9741 | 846 | static int |
718e3744 | 847 | zread_ipv4_delete (struct zserv *client, u_short length) |
848 | { | |
849 | int i; | |
850 | struct stream *s; | |
851 | struct zapi_ipv4 api; | |
852 | struct in_addr nexthop; | |
853 | unsigned long ifindex; | |
854 | struct prefix_ipv4 p; | |
855 | u_char nexthop_num; | |
856 | u_char nexthop_type; | |
857 | u_char ifname_len; | |
858 | ||
859 | s = client->ibuf; | |
860 | ifindex = 0; | |
861 | nexthop.s_addr = 0; | |
862 | ||
863 | /* Type, flags, message. */ | |
864 | api.type = stream_getc (s); | |
865 | api.flags = stream_getc (s); | |
866 | api.message = stream_getc (s); | |
867 | ||
868 | /* IPv4 prefix. */ | |
869 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
870 | p.family = AF_INET; | |
871 | p.prefixlen = stream_getc (s); | |
872 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
873 | ||
874 | /* Nexthop, ifindex, distance, metric. */ | |
875 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
876 | { | |
877 | nexthop_num = stream_getc (s); | |
878 | ||
879 | for (i = 0; i < nexthop_num; i++) | |
880 | { | |
881 | nexthop_type = stream_getc (s); | |
882 | ||
883 | switch (nexthop_type) | |
884 | { | |
885 | case ZEBRA_NEXTHOP_IFINDEX: | |
886 | ifindex = stream_getl (s); | |
887 | break; | |
888 | case ZEBRA_NEXTHOP_IFNAME: | |
889 | ifname_len = stream_getc (s); | |
9985f83c | 890 | stream_forward_getp (s, ifname_len); |
718e3744 | 891 | break; |
892 | case ZEBRA_NEXTHOP_IPV4: | |
893 | nexthop.s_addr = stream_get_ipv4 (s); | |
894 | break; | |
895 | case ZEBRA_NEXTHOP_IPV6: | |
9985f83c | 896 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 897 | break; |
898 | } | |
899 | } | |
900 | } | |
901 | ||
902 | /* Distance. */ | |
903 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
904 | api.distance = stream_getc (s); | |
905 | else | |
906 | api.distance = 0; | |
907 | ||
908 | /* Metric. */ | |
909 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
910 | api.metric = stream_getl (s); | |
911 | else | |
912 | api.metric = 0; | |
913 | ||
914 | rib_delete_ipv4 (api.type, api.flags, &p, &nexthop, ifindex, | |
915 | client->rtm_table); | |
719e9741 | 916 | return 0; |
718e3744 | 917 | } |
918 | ||
919 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 920 | static int |
718e3744 | 921 | zread_ipv4_nexthop_lookup (struct zserv *client, u_short length) |
922 | { | |
923 | struct in_addr addr; | |
924 | ||
925 | addr.s_addr = stream_get_ipv4 (client->ibuf); | |
719e9741 | 926 | return zsend_ipv4_nexthop_lookup (client, addr); |
718e3744 | 927 | } |
928 | ||
929 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 930 | static int |
718e3744 | 931 | zread_ipv4_import_lookup (struct zserv *client, u_short length) |
932 | { | |
933 | struct prefix_ipv4 p; | |
934 | ||
935 | p.family = AF_INET; | |
936 | p.prefixlen = stream_getc (client->ibuf); | |
937 | p.prefix.s_addr = stream_get_ipv4 (client->ibuf); | |
938 | ||
719e9741 | 939 | return zsend_ipv4_import_lookup (client, &p); |
718e3744 | 940 | } |
941 | ||
942 | #ifdef HAVE_IPV6 | |
943 | /* Zebra server IPv6 prefix add function. */ | |
719e9741 | 944 | static int |
718e3744 | 945 | zread_ipv6_add (struct zserv *client, u_short length) |
946 | { | |
947 | int i; | |
948 | struct stream *s; | |
949 | struct zapi_ipv6 api; | |
950 | struct in6_addr nexthop; | |
951 | unsigned long ifindex; | |
952 | struct prefix_ipv6 p; | |
953 | ||
954 | s = client->ibuf; | |
955 | ifindex = 0; | |
956 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
957 | ||
958 | /* Type, flags, message. */ | |
959 | api.type = stream_getc (s); | |
960 | api.flags = stream_getc (s); | |
961 | api.message = stream_getc (s); | |
962 | ||
963 | /* IPv4 prefix. */ | |
964 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
965 | p.family = AF_INET6; | |
966 | p.prefixlen = stream_getc (s); | |
967 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
968 | ||
969 | /* Nexthop, ifindex, distance, metric. */ | |
970 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
971 | { | |
972 | u_char nexthop_type; | |
973 | ||
974 | api.nexthop_num = stream_getc (s); | |
975 | for (i = 0; i < api.nexthop_num; i++) | |
976 | { | |
977 | nexthop_type = stream_getc (s); | |
978 | ||
979 | switch (nexthop_type) | |
980 | { | |
981 | case ZEBRA_NEXTHOP_IPV6: | |
982 | stream_get (&nexthop, s, 16); | |
983 | break; | |
984 | case ZEBRA_NEXTHOP_IFINDEX: | |
985 | ifindex = stream_getl (s); | |
986 | break; | |
987 | } | |
988 | } | |
989 | } | |
990 | ||
991 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
992 | api.distance = stream_getc (s); | |
993 | else | |
994 | api.distance = 0; | |
995 | ||
996 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
997 | api.metric = stream_getl (s); | |
998 | else | |
999 | api.metric = 0; | |
1000 | ||
1001 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) | |
be61c4eb | 1002 | rib_add_ipv6 (api.type, api.flags, &p, NULL, ifindex, 0, api.metric, |
1003 | api.distance); | |
718e3744 | 1004 | else |
be61c4eb | 1005 | rib_add_ipv6 (api.type, api.flags, &p, &nexthop, ifindex, 0, api.metric, |
1006 | api.distance); | |
719e9741 | 1007 | return 0; |
718e3744 | 1008 | } |
1009 | ||
1010 | /* Zebra server IPv6 prefix delete function. */ | |
719e9741 | 1011 | static int |
718e3744 | 1012 | zread_ipv6_delete (struct zserv *client, u_short length) |
1013 | { | |
1014 | int i; | |
1015 | struct stream *s; | |
1016 | struct zapi_ipv6 api; | |
1017 | struct in6_addr nexthop; | |
1018 | unsigned long ifindex; | |
1019 | struct prefix_ipv6 p; | |
1020 | ||
1021 | s = client->ibuf; | |
1022 | ifindex = 0; | |
1023 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1024 | ||
1025 | /* Type, flags, message. */ | |
1026 | api.type = stream_getc (s); | |
1027 | api.flags = stream_getc (s); | |
1028 | api.message = stream_getc (s); | |
1029 | ||
1030 | /* IPv4 prefix. */ | |
1031 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1032 | p.family = AF_INET6; | |
1033 | p.prefixlen = stream_getc (s); | |
1034 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1035 | ||
1036 | /* Nexthop, ifindex, distance, metric. */ | |
1037 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1038 | { | |
1039 | u_char nexthop_type; | |
1040 | ||
1041 | api.nexthop_num = stream_getc (s); | |
1042 | for (i = 0; i < api.nexthop_num; i++) | |
1043 | { | |
1044 | nexthop_type = stream_getc (s); | |
1045 | ||
1046 | switch (nexthop_type) | |
1047 | { | |
1048 | case ZEBRA_NEXTHOP_IPV6: | |
1049 | stream_get (&nexthop, s, 16); | |
1050 | break; | |
1051 | case ZEBRA_NEXTHOP_IFINDEX: | |
1052 | ifindex = stream_getl (s); | |
1053 | break; | |
1054 | } | |
1055 | } | |
1056 | } | |
1057 | ||
1058 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1059 | api.distance = stream_getc (s); | |
1060 | else | |
1061 | api.distance = 0; | |
1062 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1063 | api.metric = stream_getl (s); | |
1064 | else | |
1065 | api.metric = 0; | |
1066 | ||
1067 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) | |
1068 | rib_delete_ipv6 (api.type, api.flags, &p, NULL, ifindex, 0); | |
1069 | else | |
1070 | rib_delete_ipv6 (api.type, api.flags, &p, &nexthop, ifindex, 0); | |
719e9741 | 1071 | return 0; |
718e3744 | 1072 | } |
1073 | ||
719e9741 | 1074 | static int |
718e3744 | 1075 | zread_ipv6_nexthop_lookup (struct zserv *client, u_short length) |
1076 | { | |
1077 | struct in6_addr addr; | |
1078 | char buf[BUFSIZ]; | |
1079 | ||
1080 | stream_get (&addr, client->ibuf, 16); | |
1081 | printf ("DEBUG %s\n", inet_ntop (AF_INET6, &addr, buf, BUFSIZ)); | |
1082 | ||
719e9741 | 1083 | return zsend_ipv6_nexthop_lookup (client, &addr); |
718e3744 | 1084 | } |
1085 | #endif /* HAVE_IPV6 */ | |
1086 | ||
18a6dce6 | 1087 | /* Register zebra server router-id information. Send current router-id */ |
719e9741 | 1088 | static int |
18a6dce6 | 1089 | zread_router_id_add (struct zserv *client, u_short length) |
1090 | { | |
1091 | struct prefix p; | |
1092 | ||
1093 | /* Router-id information is needed. */ | |
1094 | client->ridinfo = 1; | |
1095 | ||
1096 | router_id_get (&p); | |
1097 | ||
719e9741 | 1098 | return zsend_router_id_update (client,&p); |
18a6dce6 | 1099 | } |
1100 | ||
1101 | /* Unregister zebra server router-id information. */ | |
719e9741 | 1102 | static int |
18a6dce6 | 1103 | zread_router_id_delete (struct zserv *client, u_short length) |
1104 | { | |
1105 | client->ridinfo = 0; | |
719e9741 | 1106 | return 0; |
18a6dce6 | 1107 | } |
1108 | ||
718e3744 | 1109 | /* Close zebra client. */ |
b9df2d25 | 1110 | static void |
718e3744 | 1111 | zebra_client_close (struct zserv *client) |
1112 | { | |
1113 | /* Close file descriptor. */ | |
1114 | if (client->sock) | |
1115 | { | |
1116 | close (client->sock); | |
1117 | client->sock = -1; | |
1118 | } | |
1119 | ||
1120 | /* Free stream buffers. */ | |
1121 | if (client->ibuf) | |
1122 | stream_free (client->ibuf); | |
1123 | if (client->obuf) | |
1124 | stream_free (client->obuf); | |
719e9741 | 1125 | if (client->wb) |
1126 | buffer_free(client->wb); | |
718e3744 | 1127 | |
1128 | /* Release threads. */ | |
1129 | if (client->t_read) | |
1130 | thread_cancel (client->t_read); | |
1131 | if (client->t_write) | |
1132 | thread_cancel (client->t_write); | |
719e9741 | 1133 | if (client->t_suicide) |
1134 | thread_cancel (client->t_suicide); | |
718e3744 | 1135 | |
1136 | /* Free client structure. */ | |
b21b19c5 | 1137 | listnode_delete (zebrad.client_list, client); |
718e3744 | 1138 | XFREE (0, client); |
1139 | } | |
1140 | ||
1141 | /* Make new client. */ | |
b9df2d25 | 1142 | static void |
718e3744 | 1143 | zebra_client_create (int sock) |
1144 | { | |
1145 | struct zserv *client; | |
1146 | ||
1147 | client = XCALLOC (0, sizeof (struct zserv)); | |
1148 | ||
1149 | /* Make client input/output buffer. */ | |
1150 | client->sock = sock; | |
1151 | client->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
1152 | client->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
719e9741 | 1153 | client->wb = buffer_new(0); |
718e3744 | 1154 | |
1155 | /* Set table number. */ | |
b21b19c5 | 1156 | client->rtm_table = zebrad.rtm_table_default; |
718e3744 | 1157 | |
1158 | /* Add this client to linked list. */ | |
b21b19c5 | 1159 | listnode_add (zebrad.client_list, client); |
718e3744 | 1160 | |
1161 | /* Make new read thread. */ | |
1162 | zebra_event (ZEBRA_READ, sock, client); | |
1163 | } | |
1164 | ||
1165 | /* Handler of zebra service request. */ | |
b9df2d25 | 1166 | static int |
718e3744 | 1167 | zebra_client_read (struct thread *thread) |
1168 | { | |
1169 | int sock; | |
1170 | struct zserv *client; | |
57a1477b | 1171 | size_t already; |
718e3744 | 1172 | u_short length; |
1173 | u_char command; | |
1174 | ||
1175 | /* Get thread data. Reset reading thread because I'm running. */ | |
1176 | sock = THREAD_FD (thread); | |
1177 | client = THREAD_ARG (thread); | |
1178 | client->t_read = NULL; | |
1179 | ||
719e9741 | 1180 | if (client->t_suicide) |
718e3744 | 1181 | { |
719e9741 | 1182 | zebra_client_close(client); |
718e3744 | 1183 | return -1; |
1184 | } | |
719e9741 | 1185 | |
1186 | /* Read length and command (if we don't have it already). */ | |
57a1477b | 1187 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) |
719e9741 | 1188 | { |
57a1477b | 1189 | ssize_t nbyte; |
719e9741 | 1190 | if (((nbyte = stream_read_try (client->ibuf, sock, |
57a1477b | 1191 | ZEBRA_HEADER_SIZE-already)) == 0) || |
719e9741 | 1192 | (nbyte == -1)) |
1193 | { | |
1194 | if (IS_ZEBRA_DEBUG_EVENT) | |
1195 | zlog_debug ("connection closed socket [%d]", sock); | |
1196 | zebra_client_close (client); | |
1197 | return -1; | |
1198 | } | |
57a1477b | 1199 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE-already)) |
719e9741 | 1200 | { |
1201 | /* Try again later. */ | |
1202 | zebra_event (ZEBRA_READ, sock, client); | |
1203 | return 0; | |
1204 | } | |
57a1477b | 1205 | already = ZEBRA_HEADER_SIZE; |
719e9741 | 1206 | } |
1207 | ||
1208 | /* Reset to read from the beginning of the incoming packet. */ | |
1209 | stream_set_getp(client->ibuf, 0); | |
1210 | ||
718e3744 | 1211 | length = stream_getw (client->ibuf); |
1212 | command = stream_getc (client->ibuf); | |
1213 | ||
719e9741 | 1214 | if (length < ZEBRA_HEADER_SIZE) |
718e3744 | 1215 | { |
57a1477b | 1216 | zlog_warn("%s: socket %d message length %u is less than header size %d", |
1217 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
1218 | zebra_client_close (client); | |
1219 | return -1; | |
1220 | } | |
1221 | if (length > STREAM_SIZE(client->ibuf)) | |
1222 | { | |
1223 | zlog_warn("%s: socket %d message length %u exceeds buffer size %lu", | |
1224 | __func__, sock, length, (u_long)STREAM_SIZE(client->ibuf)); | |
718e3744 | 1225 | zebra_client_close (client); |
1226 | return -1; | |
1227 | } | |
1228 | ||
718e3744 | 1229 | /* Read rest of data. */ |
57a1477b | 1230 | if (already < length) |
718e3744 | 1231 | { |
57a1477b | 1232 | ssize_t nbyte; |
1233 | if (((nbyte = stream_read_try (client->ibuf, sock, | |
1234 | length-already)) == 0) || | |
1235 | (nbyte == -1)) | |
718e3744 | 1236 | { |
1237 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1238 | zlog_debug ("connection closed [%d] when reading zebra data", sock); |
718e3744 | 1239 | zebra_client_close (client); |
1240 | return -1; | |
1241 | } | |
57a1477b | 1242 | if (nbyte != (ssize_t)(length-already)) |
719e9741 | 1243 | { |
1244 | /* Try again later. */ | |
1245 | zebra_event (ZEBRA_READ, sock, client); | |
1246 | return 0; | |
1247 | } | |
718e3744 | 1248 | } |
1249 | ||
719e9741 | 1250 | length -= ZEBRA_HEADER_SIZE; |
1251 | ||
718e3744 | 1252 | /* Debug packet information. */ |
1253 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1254 | zlog_debug ("zebra message comes from socket [%d]", sock); |
718e3744 | 1255 | |
1256 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
b6178002 | 1257 | zlog_debug ("zebra message received [%s] %d", |
718e3744 | 1258 | zebra_command_str[command], length); |
1259 | ||
1260 | switch (command) | |
1261 | { | |
18a6dce6 | 1262 | case ZEBRA_ROUTER_ID_ADD: |
1263 | zread_router_id_add (client, length); | |
1264 | break; | |
1265 | case ZEBRA_ROUTER_ID_DELETE: | |
1266 | zread_router_id_delete (client, length); | |
1267 | break; | |
718e3744 | 1268 | case ZEBRA_INTERFACE_ADD: |
1269 | zread_interface_add (client, length); | |
1270 | break; | |
1271 | case ZEBRA_INTERFACE_DELETE: | |
1272 | zread_interface_delete (client, length); | |
1273 | break; | |
1274 | case ZEBRA_IPV4_ROUTE_ADD: | |
1275 | zread_ipv4_add (client, length); | |
1276 | break; | |
1277 | case ZEBRA_IPV4_ROUTE_DELETE: | |
1278 | zread_ipv4_delete (client, length); | |
1279 | break; | |
1280 | #ifdef HAVE_IPV6 | |
1281 | case ZEBRA_IPV6_ROUTE_ADD: | |
1282 | zread_ipv6_add (client, length); | |
1283 | break; | |
1284 | case ZEBRA_IPV6_ROUTE_DELETE: | |
1285 | zread_ipv6_delete (client, length); | |
1286 | break; | |
1287 | #endif /* HAVE_IPV6 */ | |
1288 | case ZEBRA_REDISTRIBUTE_ADD: | |
1289 | zebra_redistribute_add (command, client, length); | |
1290 | break; | |
1291 | case ZEBRA_REDISTRIBUTE_DELETE: | |
1292 | zebra_redistribute_delete (command, client, length); | |
1293 | break; | |
1294 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
1295 | zebra_redistribute_default_add (command, client, length); | |
1296 | break; | |
1297 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
1298 | zebra_redistribute_default_delete (command, client, length); | |
1299 | break; | |
1300 | case ZEBRA_IPV4_NEXTHOP_LOOKUP: | |
1301 | zread_ipv4_nexthop_lookup (client, length); | |
1302 | break; | |
1303 | #ifdef HAVE_IPV6 | |
1304 | case ZEBRA_IPV6_NEXTHOP_LOOKUP: | |
1305 | zread_ipv6_nexthop_lookup (client, length); | |
1306 | break; | |
1307 | #endif /* HAVE_IPV6 */ | |
1308 | case ZEBRA_IPV4_IMPORT_LOOKUP: | |
1309 | zread_ipv4_import_lookup (client, length); | |
1310 | break; | |
1311 | default: | |
1312 | zlog_info ("Zebra received unknown command %d", command); | |
1313 | break; | |
1314 | } | |
1315 | ||
719e9741 | 1316 | if (client->t_suicide) |
1317 | { | |
1318 | /* No need to wait for thread callback, just kill immediately. */ | |
1319 | zebra_client_close(client); | |
1320 | return -1; | |
1321 | } | |
1322 | ||
718e3744 | 1323 | stream_reset (client->ibuf); |
1324 | zebra_event (ZEBRA_READ, sock, client); | |
718e3744 | 1325 | return 0; |
1326 | } | |
1327 | ||
718e3744 | 1328 | |
1329 | /* Accept code of zebra server socket. */ | |
b9df2d25 | 1330 | static int |
718e3744 | 1331 | zebra_accept (struct thread *thread) |
1332 | { | |
1333 | int accept_sock; | |
1334 | int client_sock; | |
1335 | struct sockaddr_in client; | |
1336 | socklen_t len; | |
1337 | ||
1338 | accept_sock = THREAD_FD (thread); | |
1339 | ||
719e9741 | 1340 | /* Reregister myself. */ |
1341 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1342 | ||
718e3744 | 1343 | len = sizeof (struct sockaddr_in); |
1344 | client_sock = accept (accept_sock, (struct sockaddr *) &client, &len); | |
1345 | ||
1346 | if (client_sock < 0) | |
1347 | { | |
6099b3b5 | 1348 | zlog_warn ("Can't accept zebra socket: %s", safe_strerror (errno)); |
718e3744 | 1349 | return -1; |
1350 | } | |
1351 | ||
ccf3557b | 1352 | /* Make client socket non-blocking. */ |
719e9741 | 1353 | set_nonblocking(client_sock); |
865b852c | 1354 | |
718e3744 | 1355 | /* Create new zebra client. */ |
1356 | zebra_client_create (client_sock); | |
1357 | ||
718e3744 | 1358 | return 0; |
1359 | } | |
1360 | ||
b9df2d25 | 1361 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 1362 | /* Make zebra's server socket. */ |
b9df2d25 | 1363 | static void |
718e3744 | 1364 | zebra_serv () |
1365 | { | |
1366 | int ret; | |
1367 | int accept_sock; | |
1368 | struct sockaddr_in addr; | |
1369 | ||
1370 | accept_sock = socket (AF_INET, SOCK_STREAM, 0); | |
1371 | ||
1372 | if (accept_sock < 0) | |
1373 | { | |
3d1dc857 | 1374 | zlog_warn ("Can't create zserv stream socket: %s", |
1375 | safe_strerror (errno)); | |
718e3744 | 1376 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1377 | return; | |
1378 | } | |
1379 | ||
1380 | memset (&addr, 0, sizeof (struct sockaddr_in)); | |
1381 | addr.sin_family = AF_INET; | |
1382 | addr.sin_port = htons (ZEBRA_PORT); | |
1383 | #ifdef HAVE_SIN_LEN | |
1384 | addr.sin_len = sizeof (struct sockaddr_in); | |
1385 | #endif /* HAVE_SIN_LEN */ | |
1386 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); | |
1387 | ||
1388 | sockopt_reuseaddr (accept_sock); | |
1389 | sockopt_reuseport (accept_sock); | |
1390 | ||
edd7c245 | 1391 | if ( zserv_privs.change(ZPRIVS_RAISE) ) |
1392 | zlog (NULL, LOG_ERR, "Can't raise privileges"); | |
1393 | ||
718e3744 | 1394 | ret = bind (accept_sock, (struct sockaddr *)&addr, |
1395 | sizeof (struct sockaddr_in)); | |
1396 | if (ret < 0) | |
1397 | { | |
3d1dc857 | 1398 | zlog_warn ("Can't bind to stream socket: %s", |
1399 | safe_strerror (errno)); | |
718e3744 | 1400 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1401 | close (accept_sock); /* Avoid sd leak. */ | |
1402 | return; | |
1403 | } | |
edd7c245 | 1404 | |
1405 | if ( zserv_privs.change(ZPRIVS_LOWER) ) | |
1406 | zlog (NULL, LOG_ERR, "Can't lower privileges"); | |
718e3744 | 1407 | |
1408 | ret = listen (accept_sock, 1); | |
1409 | if (ret < 0) | |
1410 | { | |
3d1dc857 | 1411 | zlog_warn ("Can't listen to stream socket: %s", |
1412 | safe_strerror (errno)); | |
718e3744 | 1413 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1414 | close (accept_sock); /* Avoid sd leak. */ | |
1415 | return; | |
1416 | } | |
1417 | ||
1418 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1419 | } | |
b9df2d25 | 1420 | #endif /* HAVE_TCP_ZEBRA */ |
718e3744 | 1421 | |
1422 | /* For sockaddr_un. */ | |
1423 | #include <sys/un.h> | |
1424 | ||
1425 | /* zebra server UNIX domain socket. */ | |
b9df2d25 | 1426 | static void |
fce954f8 | 1427 | zebra_serv_un (const char *path) |
718e3744 | 1428 | { |
1429 | int ret; | |
1430 | int sock, len; | |
1431 | struct sockaddr_un serv; | |
1432 | mode_t old_mask; | |
1433 | ||
1434 | /* First of all, unlink existing socket */ | |
1435 | unlink (path); | |
1436 | ||
1437 | /* Set umask */ | |
1438 | old_mask = umask (0077); | |
1439 | ||
1440 | /* Make UNIX domain socket. */ | |
1441 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
1442 | if (sock < 0) | |
1443 | { | |
3d1dc857 | 1444 | zlog_warn ("Can't create zserv unix socket: %s", |
1445 | safe_strerror (errno)); | |
1446 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1447 | return; |
1448 | } | |
1449 | ||
1450 | /* Make server socket. */ | |
1451 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
1452 | serv.sun_family = AF_UNIX; | |
1453 | strncpy (serv.sun_path, path, strlen (path)); | |
1454 | #ifdef HAVE_SUN_LEN | |
1455 | len = serv.sun_len = SUN_LEN(&serv); | |
1456 | #else | |
1457 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
1458 | #endif /* HAVE_SUN_LEN */ | |
1459 | ||
1460 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
1461 | if (ret < 0) | |
1462 | { | |
3d1dc857 | 1463 | zlog_warn ("Can't bind to unix socket %s: %s", |
1464 | path, safe_strerror (errno)); | |
1465 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1466 | close (sock); |
1467 | return; | |
1468 | } | |
1469 | ||
1470 | ret = listen (sock, 5); | |
1471 | if (ret < 0) | |
1472 | { | |
3d1dc857 | 1473 | zlog_warn ("Can't listen to unix socket %s: %s", |
1474 | path, safe_strerror (errno)); | |
1475 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 1476 | close (sock); |
1477 | return; | |
1478 | } | |
1479 | ||
1480 | umask (old_mask); | |
1481 | ||
1482 | zebra_event (ZEBRA_SERV, sock, NULL); | |
1483 | } | |
1484 | \f | |
718e3744 | 1485 | |
b9df2d25 | 1486 | static void |
718e3744 | 1487 | zebra_event (enum event event, int sock, struct zserv *client) |
1488 | { | |
1489 | switch (event) | |
1490 | { | |
1491 | case ZEBRA_SERV: | |
b21b19c5 | 1492 | thread_add_read (zebrad.master, zebra_accept, client, sock); |
718e3744 | 1493 | break; |
1494 | case ZEBRA_READ: | |
1495 | client->t_read = | |
b21b19c5 | 1496 | thread_add_read (zebrad.master, zebra_client_read, client, sock); |
718e3744 | 1497 | break; |
1498 | case ZEBRA_WRITE: | |
1499 | /**/ | |
1500 | break; | |
1501 | } | |
1502 | } | |
1503 | \f | |
1504 | /* Display default rtm_table for all clients. */ | |
1505 | DEFUN (show_table, | |
1506 | show_table_cmd, | |
1507 | "show table", | |
1508 | SHOW_STR | |
1509 | "default routing table to use for all clients\n") | |
1510 | { | |
b21b19c5 | 1511 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, |
718e3744 | 1512 | VTY_NEWLINE); |
1513 | return CMD_SUCCESS; | |
1514 | } | |
1515 | ||
1516 | DEFUN (config_table, | |
1517 | config_table_cmd, | |
1518 | "table TABLENO", | |
1519 | "Configure target kernel routing table\n" | |
1520 | "TABLE integer\n") | |
1521 | { | |
b21b19c5 | 1522 | zebrad.rtm_table_default = strtol (argv[0], (char**)0, 10); |
718e3744 | 1523 | return CMD_SUCCESS; |
1524 | } | |
1525 | ||
647e4f1f | 1526 | DEFUN (ip_forwarding, |
1527 | ip_forwarding_cmd, | |
1528 | "ip forwarding", | |
1529 | IP_STR | |
1530 | "Turn on IP forwarding") | |
1531 | { | |
1532 | int ret; | |
1533 | ||
1534 | ret = ipforward (); | |
b71f00f2 | 1535 | if (ret == 0) |
1536 | ret = ipforward_on (); | |
647e4f1f | 1537 | |
647e4f1f | 1538 | if (ret == 0) |
1539 | { | |
1540 | vty_out (vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
1541 | return CMD_WARNING; | |
1542 | } | |
1543 | ||
1544 | return CMD_SUCCESS; | |
1545 | } | |
1546 | ||
718e3744 | 1547 | DEFUN (no_ip_forwarding, |
1548 | no_ip_forwarding_cmd, | |
1549 | "no ip forwarding", | |
1550 | NO_STR | |
1551 | IP_STR | |
1552 | "Turn off IP forwarding") | |
1553 | { | |
1554 | int ret; | |
1555 | ||
1556 | ret = ipforward (); | |
b71f00f2 | 1557 | if (ret != 0) |
1558 | ret = ipforward_off (); | |
718e3744 | 1559 | |
718e3744 | 1560 | if (ret != 0) |
1561 | { | |
1562 | vty_out (vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
1563 | return CMD_WARNING; | |
1564 | } | |
1565 | ||
1566 | return CMD_SUCCESS; | |
1567 | } | |
1568 | ||
1569 | /* This command is for debugging purpose. */ | |
1570 | DEFUN (show_zebra_client, | |
1571 | show_zebra_client_cmd, | |
1572 | "show zebra client", | |
1573 | SHOW_STR | |
1574 | "Zebra information" | |
1575 | "Client information") | |
1576 | { | |
52dc7ee6 | 1577 | struct listnode *node; |
718e3744 | 1578 | struct zserv *client; |
1579 | ||
1eb8ef25 | 1580 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) |
1581 | vty_out (vty, "Client fd %d%s", client->sock, VTY_NEWLINE); | |
1582 | ||
718e3744 | 1583 | return CMD_SUCCESS; |
1584 | } | |
1585 | ||
1586 | /* Table configuration write function. */ | |
b9df2d25 | 1587 | static int |
718e3744 | 1588 | config_write_table (struct vty *vty) |
1589 | { | |
b21b19c5 | 1590 | if (zebrad.rtm_table_default) |
1591 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, | |
718e3744 | 1592 | VTY_NEWLINE); |
1593 | return 0; | |
1594 | } | |
1595 | ||
1596 | /* table node for routing tables. */ | |
1597 | struct cmd_node table_node = | |
1598 | { | |
1599 | TABLE_NODE, | |
1600 | "", /* This node has no interface. */ | |
1601 | 1 | |
1602 | }; | |
1603 | \f | |
1604 | /* Only display ip forwarding is enabled or not. */ | |
1605 | DEFUN (show_ip_forwarding, | |
1606 | show_ip_forwarding_cmd, | |
1607 | "show ip forwarding", | |
1608 | SHOW_STR | |
1609 | IP_STR | |
1610 | "IP forwarding status\n") | |
1611 | { | |
1612 | int ret; | |
1613 | ||
1614 | ret = ipforward (); | |
1615 | ||
1616 | if (ret == 0) | |
1617 | vty_out (vty, "IP forwarding is off%s", VTY_NEWLINE); | |
1618 | else | |
1619 | vty_out (vty, "IP forwarding is on%s", VTY_NEWLINE); | |
1620 | return CMD_SUCCESS; | |
1621 | } | |
1622 | ||
1623 | #ifdef HAVE_IPV6 | |
1624 | /* Only display ipv6 forwarding is enabled or not. */ | |
1625 | DEFUN (show_ipv6_forwarding, | |
1626 | show_ipv6_forwarding_cmd, | |
1627 | "show ipv6 forwarding", | |
1628 | SHOW_STR | |
1629 | "IPv6 information\n" | |
1630 | "Forwarding status\n") | |
1631 | { | |
1632 | int ret; | |
1633 | ||
1634 | ret = ipforward_ipv6 (); | |
1635 | ||
1636 | switch (ret) | |
1637 | { | |
1638 | case -1: | |
1639 | vty_out (vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
1640 | break; | |
1641 | case 0: | |
1642 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
1643 | break; | |
1644 | case 1: | |
1645 | vty_out (vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
1646 | break; | |
1647 | default: | |
1648 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
1649 | break; | |
1650 | } | |
1651 | return CMD_SUCCESS; | |
1652 | } | |
1653 | ||
55906724 | 1654 | DEFUN (ipv6_forwarding, |
1655 | ipv6_forwarding_cmd, | |
1656 | "ipv6 forwarding", | |
1657 | IPV6_STR | |
1658 | "Turn on IPv6 forwarding") | |
1659 | { | |
1660 | int ret; | |
1661 | ||
41d3fc96 | 1662 | ret = ipforward_ipv6 (); |
b71f00f2 | 1663 | if (ret == 0) |
1664 | ret = ipforward_ipv6_on (); | |
41d3fc96 | 1665 | |
41d3fc96 | 1666 | if (ret == 0) |
55906724 | 1667 | { |
1668 | vty_out (vty, "Can't turn on IPv6 forwarding%s", VTY_NEWLINE); | |
1669 | return CMD_WARNING; | |
1670 | } | |
1671 | ||
1672 | return CMD_SUCCESS; | |
1673 | } | |
1674 | ||
718e3744 | 1675 | DEFUN (no_ipv6_forwarding, |
1676 | no_ipv6_forwarding_cmd, | |
1677 | "no ipv6 forwarding", | |
1678 | NO_STR | |
55906724 | 1679 | IPV6_STR |
1680 | "Turn off IPv6 forwarding") | |
718e3744 | 1681 | { |
1682 | int ret; | |
1683 | ||
41d3fc96 | 1684 | ret = ipforward_ipv6 (); |
b71f00f2 | 1685 | if (ret != 0) |
1686 | ret = ipforward_ipv6_off (); | |
41d3fc96 | 1687 | |
718e3744 | 1688 | if (ret != 0) |
1689 | { | |
1690 | vty_out (vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
1691 | return CMD_WARNING; | |
1692 | } | |
1693 | ||
1694 | return CMD_SUCCESS; | |
1695 | } | |
1696 | ||
1697 | #endif /* HAVE_IPV6 */ | |
1698 | ||
1699 | /* IPForwarding configuration write function. */ | |
719e9741 | 1700 | static int |
718e3744 | 1701 | config_write_forwarding (struct vty *vty) |
1702 | { | |
18a6dce6 | 1703 | /* FIXME: Find better place for that. */ |
1704 | router_id_write (vty); | |
1705 | ||
3e0b3a56 | 1706 | if (ipforward ()) |
1707 | vty_out (vty, "ip forwarding%s", VTY_NEWLINE); | |
718e3744 | 1708 | #ifdef HAVE_IPV6 |
3e0b3a56 | 1709 | if (ipforward_ipv6 ()) |
1710 | vty_out (vty, "ipv6 forwarding%s", VTY_NEWLINE); | |
718e3744 | 1711 | #endif /* HAVE_IPV6 */ |
1712 | vty_out (vty, "!%s", VTY_NEWLINE); | |
1713 | return 0; | |
1714 | } | |
1715 | ||
1716 | /* table node for routing tables. */ | |
1717 | struct cmd_node forwarding_node = | |
1718 | { | |
1719 | FORWARDING_NODE, | |
1720 | "", /* This node has no interface. */ | |
1721 | 1 | |
1722 | }; | |
1723 | ||
1724 | \f | |
1725 | /* Initialisation of zebra and installation of commands. */ | |
1726 | void | |
a1ac18c4 | 1727 | zebra_init (void) |
718e3744 | 1728 | { |
1729 | /* Client list init. */ | |
b21b19c5 | 1730 | zebrad.client_list = list_new (); |
718e3744 | 1731 | |
718e3744 | 1732 | /* Make zebra server socket. */ |
1733 | #ifdef HAVE_TCP_ZEBRA | |
1734 | zebra_serv (); | |
1735 | #else | |
1736 | zebra_serv_un (ZEBRA_SERV_PATH); | |
1737 | #endif /* HAVE_TCP_ZEBRA */ | |
1738 | ||
1739 | /* Install configuration write function. */ | |
1740 | install_node (&table_node, config_write_table); | |
1741 | install_node (&forwarding_node, config_write_forwarding); | |
1742 | ||
1743 | install_element (VIEW_NODE, &show_ip_forwarding_cmd); | |
1744 | install_element (ENABLE_NODE, &show_ip_forwarding_cmd); | |
647e4f1f | 1745 | install_element (CONFIG_NODE, &ip_forwarding_cmd); |
718e3744 | 1746 | install_element (CONFIG_NODE, &no_ip_forwarding_cmd); |
1747 | install_element (ENABLE_NODE, &show_zebra_client_cmd); | |
1748 | ||
1749 | #ifdef HAVE_NETLINK | |
1750 | install_element (VIEW_NODE, &show_table_cmd); | |
1751 | install_element (ENABLE_NODE, &show_table_cmd); | |
1752 | install_element (CONFIG_NODE, &config_table_cmd); | |
1753 | #endif /* HAVE_NETLINK */ | |
1754 | ||
1755 | #ifdef HAVE_IPV6 | |
1756 | install_element (VIEW_NODE, &show_ipv6_forwarding_cmd); | |
1757 | install_element (ENABLE_NODE, &show_ipv6_forwarding_cmd); | |
55906724 | 1758 | install_element (CONFIG_NODE, &ipv6_forwarding_cmd); |
718e3744 | 1759 | install_element (CONFIG_NODE, &no_ipv6_forwarding_cmd); |
1760 | #endif /* HAVE_IPV6 */ | |
1761 | } |