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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" |
78104b9b | 40 | #include "vrf.h" |
718e3744 | 41 | |
42 | #include "zebra/zserv.h" | |
7c551956 DS |
43 | #include "zebra/zebra_ns.h" |
44 | #include "zebra/zebra_vrf.h" | |
18a6dce6 | 45 | #include "zebra/router-id.h" |
718e3744 | 46 | #include "zebra/redistribute.h" |
47 | #include "zebra/debug.h" | |
48 | #include "zebra/ipforward.h" | |
fb018d25 | 49 | #include "zebra/zebra_rnh.h" |
5c610faf | 50 | #include "zebra/rt_netlink.h" |
88177fe3 DS |
51 | #include "zebra/interface.h" |
52 | #include "zebra/zebra_ptm.h" | |
4a04e5f7 | 53 | #include "zebra/rtadv.h" |
6b0655a2 | 54 | |
718e3744 | 55 | /* Event list of zebra. */ |
56 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
57 | ||
b9df2d25 | 58 | static void zebra_event (enum event event, int sock, struct zserv *client); |
ccf3557b | 59 | |
edd7c245 | 60 | extern struct zebra_privs_t zserv_privs; |
6b0655a2 | 61 | |
719e9741 | 62 | static void zebra_client_close (struct zserv *client); |
ccf3557b | 63 | |
719e9741 | 64 | static int |
65 | zserv_delayed_close(struct thread *thread) | |
ccf3557b | 66 | { |
719e9741 | 67 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 68 | |
719e9741 | 69 | client->t_suicide = NULL; |
70 | zebra_client_close(client); | |
ccf3557b | 71 | return 0; |
72 | } | |
73 | ||
719e9741 | 74 | static int |
75 | zserv_flush_data(struct thread *thread) | |
ccf3557b | 76 | { |
719e9741 | 77 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 78 | |
719e9741 | 79 | client->t_write = NULL; |
80 | if (client->t_suicide) | |
ccf3557b | 81 | { |
719e9741 | 82 | zebra_client_close(client); |
83 | return -1; | |
ccf3557b | 84 | } |
719e9741 | 85 | switch (buffer_flush_available(client->wb, client->sock)) |
ccf3557b | 86 | { |
719e9741 | 87 | case BUFFER_ERROR: |
88 | zlog_warn("%s: buffer_flush_available failed on zserv client fd %d, " | |
89 | "closing", __func__, client->sock); | |
90 | zebra_client_close(client); | |
91 | break; | |
92 | case BUFFER_PENDING: | |
93 | client->t_write = thread_add_write(zebrad.master, zserv_flush_data, | |
94 | client, client->sock); | |
95 | break; | |
96 | case BUFFER_EMPTY: | |
97 | break; | |
ccf3557b | 98 | } |
04b02fda DS |
99 | |
100 | client->last_write_time = quagga_time(NULL); | |
719e9741 | 101 | return 0; |
102 | } | |
ccf3557b | 103 | |
fb018d25 | 104 | int |
719e9741 | 105 | zebra_server_send_message(struct zserv *client) |
106 | { | |
107 | if (client->t_suicide) | |
108 | return -1; | |
04b02fda DS |
109 | |
110 | stream_set_getp(client->obuf, 0); | |
111 | client->last_write_cmd = stream_getw_from(client->obuf, 4); | |
719e9741 | 112 | switch (buffer_write(client->wb, client->sock, STREAM_DATA(client->obuf), |
113 | stream_get_endp(client->obuf))) | |
114 | { | |
115 | case BUFFER_ERROR: | |
116 | zlog_warn("%s: buffer_write failed to zserv client fd %d, closing", | |
117 | __func__, client->sock); | |
118 | /* Schedule a delayed close since many of the functions that call this | |
119 | one do not check the return code. They do not allow for the | |
120 | possibility that an I/O error may have caused the client to be | |
121 | deleted. */ | |
122 | client->t_suicide = thread_add_event(zebrad.master, zserv_delayed_close, | |
123 | client, 0); | |
124 | return -1; | |
719e9741 | 125 | case BUFFER_EMPTY: |
126 | THREAD_OFF(client->t_write); | |
127 | break; | |
128 | case BUFFER_PENDING: | |
129 | THREAD_WRITE_ON(zebrad.master, client->t_write, | |
130 | zserv_flush_data, client, client->sock); | |
131 | break; | |
132 | } | |
04b02fda DS |
133 | |
134 | client->last_write_time = quagga_time(NULL); | |
ccf3557b | 135 | return 0; |
136 | } | |
137 | ||
fb018d25 | 138 | void |
7076bb2f | 139 | zserv_create_header (struct stream *s, uint16_t cmd, vrf_id_t vrf_id) |
c1b9800a | 140 | { |
141 | /* length placeholder, caller can update */ | |
142 | stream_putw (s, ZEBRA_HEADER_SIZE); | |
143 | stream_putc (s, ZEBRA_HEADER_MARKER); | |
144 | stream_putc (s, ZSERV_VERSION); | |
7076bb2f | 145 | stream_putw (s, vrf_id); |
c1b9800a | 146 | stream_putw (s, cmd); |
147 | } | |
148 | ||
51d4ef83 JB |
149 | static void |
150 | zserv_encode_interface (struct stream *s, struct interface *ifp) | |
151 | { | |
152 | /* Interface information. */ | |
153 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
154 | stream_putl (s, ifp->ifindex); | |
155 | stream_putc (s, ifp->status); | |
156 | stream_putq (s, ifp->flags); | |
244c1cdc DS |
157 | stream_putc (s, ifp->ptm_enable); |
158 | stream_putc (s, ifp->ptm_status); | |
51d4ef83 JB |
159 | stream_putl (s, ifp->metric); |
160 | stream_putl (s, ifp->mtu); | |
161 | stream_putl (s, ifp->mtu6); | |
162 | stream_putl (s, ifp->bandwidth); | |
163 | #ifdef HAVE_STRUCT_SOCKADDR_DL | |
ca3ccd87 | 164 | stream_put (s, &ifp->sdl, sizeof (ifp->sdl_storage)); |
51d4ef83 JB |
165 | #else |
166 | stream_putl (s, ifp->hw_addr_len); | |
167 | if (ifp->hw_addr_len) | |
168 | stream_put (s, ifp->hw_addr, ifp->hw_addr_len); | |
169 | #endif /* HAVE_STRUCT_SOCKADDR_DL */ | |
170 | ||
171 | /* Write packet size. */ | |
172 | stream_putw_at (s, 0, stream_get_endp (s)); | |
173 | } | |
174 | ||
12f6fb97 | 175 | static void |
9e1bf607 | 176 | zserv_encode_vrf (struct stream *s, struct zebra_vrf *zvrf) |
12f6fb97 DS |
177 | { |
178 | /* Interface information. */ | |
9e1bf607 | 179 | stream_put (s, zvrf->name, VRF_NAMSIZ); |
12f6fb97 DS |
180 | |
181 | /* Write packet size. */ | |
182 | stream_putw_at (s, 0, stream_get_endp (s)); | |
183 | } | |
184 | ||
718e3744 | 185 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 186 | /* |
187 | * This function is called in the following situations: | |
188 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
189 | * from the client. | |
190 | * - at startup, when zebra figures out the available interfaces | |
191 | * - when an interface is added (where support for | |
192 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
193 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
194 | * received) | |
195 | */ | |
718e3744 | 196 | int |
197 | zsend_interface_add (struct zserv *client, struct interface *ifp) | |
198 | { | |
199 | struct stream *s; | |
200 | ||
718e3744 | 201 | s = client->obuf; |
202 | stream_reset (s); | |
203 | ||
7076bb2f | 204 | zserv_create_header (s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); |
51d4ef83 | 205 | zserv_encode_interface (s, ifp); |
718e3744 | 206 | |
04b02fda | 207 | client->ifadd_cnt++; |
719e9741 | 208 | return zebra_server_send_message(client); |
718e3744 | 209 | } |
210 | ||
211 | /* Interface deletion from zebra daemon. */ | |
212 | int | |
213 | zsend_interface_delete (struct zserv *client, struct interface *ifp) | |
214 | { | |
215 | struct stream *s; | |
216 | ||
718e3744 | 217 | s = client->obuf; |
218 | stream_reset (s); | |
718e3744 | 219 | |
7076bb2f | 220 | zserv_create_header (s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); |
51d4ef83 | 221 | zserv_encode_interface (s, ifp); |
718e3744 | 222 | |
04b02fda | 223 | client->ifdel_cnt++; |
719e9741 | 224 | return zebra_server_send_message (client); |
718e3744 | 225 | } |
226 | ||
12f6fb97 | 227 | int |
9e1bf607 | 228 | zsend_vrf_add (struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 DS |
229 | { |
230 | struct stream *s; | |
231 | ||
232 | s = client->obuf; | |
233 | stream_reset (s); | |
234 | ||
9e1bf607 DS |
235 | zserv_create_header (s, ZEBRA_VRF_ADD, zvrf->vrf_id); |
236 | zserv_encode_vrf (s, zvrf); | |
12f6fb97 DS |
237 | |
238 | client->vrfadd_cnt++; | |
239 | return zebra_server_send_message(client); | |
240 | } | |
241 | ||
242 | /* VRF deletion from zebra daemon. */ | |
243 | int | |
9e1bf607 | 244 | zsend_vrf_delete (struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 DS |
245 | { |
246 | struct stream *s; | |
247 | ||
248 | s = client->obuf; | |
249 | stream_reset (s); | |
250 | ||
9e1bf607 DS |
251 | zserv_create_header (s, ZEBRA_VRF_DELETE, zvrf->vrf_id); |
252 | zserv_encode_vrf (s, zvrf); | |
12f6fb97 DS |
253 | |
254 | client->vrfdel_cnt++; | |
255 | return zebra_server_send_message (client); | |
256 | } | |
257 | ||
b9df2d25 | 258 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
259 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
260 | * | |
261 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
262 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
263 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
264 | * sent from zebra to the client | |
265 | * - redistribute new address info to all clients in the following situations | |
266 | * - at startup, when zebra figures out the available interfaces | |
267 | * - when an interface is added (where support for | |
268 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
269 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
270 | * received) | |
271 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
272 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
273 | * - when an RTM_NEWADDR message is received from the kernel, | |
274 | * | |
275 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
276 | * | |
277 | * zsend_interface_address(DELETE) | |
278 | * ^ | |
279 | * | | |
280 | * zebra_interface_address_delete_update | |
281 | * ^ ^ ^ | |
6eb8827d | 282 | * | | if_delete_update |
283 | * | | | |
b9df2d25 | 284 | * ip_address_uninstall connected_delete_ipv4 |
285 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
286 | * ^ ^ | |
287 | * | | | |
288 | * | RTM_NEWADDR on routing/netlink socket | |
289 | * | | |
290 | * vty commands: | |
291 | * "no ip address A.B.C.D/M [label LINE]" | |
292 | * "no ip address A.B.C.D/M secondary" | |
293 | * ["no ipv6 address X:X::X:X/M"] | |
294 | * | |
295 | */ | |
718e3744 | 296 | int |
b9df2d25 | 297 | zsend_interface_address (int cmd, struct zserv *client, |
298 | struct interface *ifp, struct connected *ifc) | |
718e3744 | 299 | { |
300 | int blen; | |
301 | struct stream *s; | |
302 | struct prefix *p; | |
303 | ||
718e3744 | 304 | s = client->obuf; |
305 | stream_reset (s); | |
c1b9800a | 306 | |
7076bb2f | 307 | zserv_create_header (s, cmd, ifp->vrf_id); |
718e3744 | 308 | stream_putl (s, ifp->ifindex); |
309 | ||
310 | /* Interface address flag. */ | |
311 | stream_putc (s, ifc->flags); | |
312 | ||
313 | /* Prefix information. */ | |
314 | p = ifc->address; | |
315 | stream_putc (s, p->family); | |
316 | blen = prefix_blen (p); | |
317 | stream_put (s, &p->u.prefix, blen); | |
b9df2d25 | 318 | |
319 | /* | |
320 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
321 | * but zebra_interface_address_delete_read() in the gnu version | |
322 | * expects to find it | |
323 | */ | |
718e3744 | 324 | stream_putc (s, p->prefixlen); |
325 | ||
326 | /* Destination. */ | |
327 | p = ifc->destination; | |
328 | if (p) | |
329 | stream_put (s, &p->u.prefix, blen); | |
330 | else | |
331 | stream_put (s, NULL, blen); | |
332 | ||
333 | /* Write packet size. */ | |
334 | stream_putw_at (s, 0, stream_get_endp (s)); | |
335 | ||
04b02fda | 336 | client->connected_rt_add_cnt++; |
719e9741 | 337 | return zebra_server_send_message(client); |
718e3744 | 338 | } |
339 | ||
a80beece DS |
340 | static int |
341 | zsend_interface_nbr_address (int cmd, struct zserv *client, | |
342 | struct interface *ifp, struct nbr_connected *ifc) | |
343 | { | |
344 | int blen; | |
345 | struct stream *s; | |
346 | struct prefix *p; | |
347 | ||
a80beece DS |
348 | s = client->obuf; |
349 | stream_reset (s); | |
350 | ||
7076bb2f | 351 | zserv_create_header (s, cmd, ifp->vrf_id); |
a80beece DS |
352 | stream_putl (s, ifp->ifindex); |
353 | ||
354 | /* Prefix information. */ | |
355 | p = ifc->address; | |
356 | stream_putc (s, p->family); | |
357 | blen = prefix_blen (p); | |
358 | stream_put (s, &p->u.prefix, blen); | |
359 | ||
360 | /* | |
361 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
362 | * but zebra_interface_address_delete_read() in the gnu version | |
363 | * expects to find it | |
364 | */ | |
365 | stream_putc (s, p->prefixlen); | |
366 | ||
367 | /* Write packet size. */ | |
368 | stream_putw_at (s, 0, stream_get_endp (s)); | |
369 | ||
370 | return zebra_server_send_message(client); | |
371 | } | |
372 | ||
373 | /* Interface address addition. */ | |
374 | static void | |
375 | zebra_interface_nbr_address_add_update (struct interface *ifp, | |
376 | struct nbr_connected *ifc) | |
377 | { | |
378 | struct listnode *node, *nnode; | |
379 | struct zserv *client; | |
380 | struct prefix *p; | |
381 | ||
382 | if (IS_ZEBRA_DEBUG_EVENT) | |
383 | { | |
384 | char buf[INET6_ADDRSTRLEN]; | |
385 | ||
386 | p = ifc->address; | |
387 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
388 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
389 | p->prefixlen, ifc->ifp->name); | |
390 | } | |
391 | ||
392 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
4fe51714 | 393 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, ifp, ifc); |
a80beece DS |
394 | } |
395 | ||
396 | /* Interface address deletion. */ | |
397 | static void | |
398 | zebra_interface_nbr_address_delete_update (struct interface *ifp, | |
399 | struct nbr_connected *ifc) | |
400 | { | |
401 | struct listnode *node, *nnode; | |
402 | struct zserv *client; | |
403 | struct prefix *p; | |
404 | ||
405 | if (IS_ZEBRA_DEBUG_EVENT) | |
406 | { | |
407 | char buf[INET6_ADDRSTRLEN]; | |
408 | ||
409 | p = ifc->address; | |
410 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
411 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
412 | p->prefixlen, ifc->ifp->name); | |
413 | } | |
414 | ||
415 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
4fe51714 | 416 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, client, ifp, ifc); |
a80beece DS |
417 | } |
418 | ||
c8e264b6 | 419 | /* Send addresses on interface to client */ |
420 | int | |
421 | zsend_interface_addresses (struct zserv *client, struct interface *ifp) | |
422 | { | |
423 | struct listnode *cnode, *cnnode; | |
424 | struct connected *c; | |
425 | struct nbr_connected *nc; | |
426 | ||
427 | /* Send interface addresses. */ | |
428 | for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, c)) | |
429 | { | |
430 | if (!CHECK_FLAG (c->conf, ZEBRA_IFC_REAL)) | |
431 | continue; | |
432 | ||
433 | if (zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
434 | ifp, c) < 0) | |
435 | return -1; | |
436 | } | |
437 | ||
438 | /* Send interface neighbors. */ | |
439 | for (ALL_LIST_ELEMENTS (ifp->nbr_connected, cnode, cnnode, nc)) | |
440 | { | |
441 | if (zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
442 | client, ifp, nc) < 0) | |
443 | return -1; | |
444 | } | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
449 | /* Notify client about interface moving from one VRF to another. | |
450 | * Whether client is interested in old and new VRF is checked by caller. | |
451 | */ | |
452 | int | |
453 | zsend_interface_vrf_update (struct zserv *client, struct interface *ifp, | |
454 | vrf_id_t vrf_id) | |
455 | { | |
456 | struct stream *s; | |
457 | ||
458 | s = client->obuf; | |
459 | stream_reset (s); | |
460 | ||
461 | zserv_create_header (s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); | |
462 | ||
463 | /* Fill in the ifIndex of the interface and its new VRF (id) */ | |
464 | stream_putl (s, ifp->ifindex); | |
465 | stream_putw (s, vrf_id); | |
466 | ||
467 | /* Write packet size. */ | |
468 | stream_putw_at (s, 0, stream_get_endp (s)); | |
469 | ||
470 | client->if_vrfchg_cnt++; | |
471 | return zebra_server_send_message(client); | |
472 | } | |
473 | ||
1d20ccf3 | 474 | /* Add new nbr connected IPv6 address */ |
a80beece | 475 | void |
1d20ccf3 | 476 | nbr_connected_add_ipv6 (struct interface *ifp, struct in6_addr *address) |
a80beece DS |
477 | { |
478 | struct nbr_connected *ifc; | |
479 | struct prefix p; | |
480 | ||
481 | p.family = AF_INET6; | |
482 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
1d20ccf3 | 483 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
a80beece DS |
484 | |
485 | if (!(ifc = listnode_head(ifp->nbr_connected))) | |
486 | { | |
487 | /* new addition */ | |
488 | ifc = nbr_connected_new (); | |
489 | ifc->address = prefix_new(); | |
490 | ifc->ifp = ifp; | |
491 | listnode_add (ifp->nbr_connected, ifc); | |
492 | } | |
493 | ||
494 | prefix_copy(ifc->address, &p); | |
495 | ||
496 | zebra_interface_nbr_address_add_update (ifp, ifc); | |
5c610faf DS |
497 | |
498 | if_nbr_ipv6ll_to_ipv4ll_neigh_update (ifp, address, 1); | |
a80beece DS |
499 | } |
500 | ||
501 | void | |
1d20ccf3 | 502 | nbr_connected_delete_ipv6 (struct interface *ifp, struct in6_addr *address) |
a80beece DS |
503 | { |
504 | struct nbr_connected *ifc; | |
505 | struct prefix p; | |
506 | ||
507 | p.family = AF_INET6; | |
508 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
1d20ccf3 | 509 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
a80beece DS |
510 | |
511 | ifc = nbr_connected_check(ifp, &p); | |
512 | if (!ifc) | |
513 | return; | |
514 | ||
515 | listnode_delete (ifp->nbr_connected, ifc); | |
516 | ||
517 | zebra_interface_nbr_address_delete_update (ifp, ifc); | |
518 | ||
5c610faf DS |
519 | if_nbr_ipv6ll_to_ipv4ll_neigh_update (ifp, address, 0); |
520 | ||
a80beece DS |
521 | nbr_connected_free (ifc); |
522 | } | |
523 | ||
b9df2d25 | 524 | /* |
525 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
526 | * ZEBRA_INTERFACE_DOWN. | |
527 | * | |
528 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
529 | * the clients in one of 2 situations: | |
530 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
531 | * - a vty command modifying the bandwidth of an interface is received. | |
532 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
533 | */ | |
718e3744 | 534 | int |
b9df2d25 | 535 | zsend_interface_update (int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 536 | { |
537 | struct stream *s; | |
538 | ||
718e3744 | 539 | s = client->obuf; |
540 | stream_reset (s); | |
541 | ||
7076bb2f | 542 | zserv_create_header (s, cmd, ifp->vrf_id); |
51d4ef83 | 543 | zserv_encode_interface (s, ifp); |
718e3744 | 544 | |
04b02fda DS |
545 | if (cmd == ZEBRA_INTERFACE_UP) |
546 | client->ifup_cnt++; | |
547 | else | |
548 | client->ifdown_cnt++; | |
549 | ||
719e9741 | 550 | return zebra_server_send_message(client); |
718e3744 | 551 | } |
552 | ||
b9df2d25 | 553 | /* |
5048fe14 | 554 | * This is the new function to announce and withdraw redistributed routes, used |
555 | * by Zebra. This is the old zsend_route_multipath() function. That function | |
556 | * was duplicating code to send a lot of information that was essentially thrown | |
557 | * away or ignored by the receiver. This is the leaner function that is not a | |
558 | * duplicate of the zapi_ipv4_route_add/del. | |
b9df2d25 | 559 | * |
5048fe14 | 560 | * The primary difference is that this function merely sends a single NH instead of |
561 | * all the nexthops. | |
b9df2d25 | 562 | */ |
718e3744 | 563 | int |
5048fe14 | 564 | zsend_redistribute_route (int cmd, struct zserv *client, struct prefix *p, |
565 | struct rib *rib) | |
718e3744 | 566 | { |
567 | int psize; | |
568 | struct stream *s; | |
569 | struct nexthop *nexthop; | |
1dcb5172 | 570 | unsigned long nhnummark = 0, messmark = 0; |
b9df2d25 | 571 | int nhnum = 0; |
1dcb5172 | 572 | u_char zapi_flags = 0; |
5048fe14 | 573 | struct nexthop dummy_nh; |
574 | ||
7076bb2f FL |
575 | /* Came from VRF lib patch, is this really needed? callers of this routine |
576 | do check for redist.., so may be its not needed. | |
577 | Check this client need this route. | |
578 | if (!vrf_bitmap_check (client->redist[family2afi(p->family)][rib->type], | |
579 | rib->vrf_id) && | |
580 | !(is_default (p) && | |
581 | vrf_bitmap_check (client->redist_default, rib->vrf_id))) | |
582 | return 0; | |
583 | */ | |
584 | ||
718e3744 | 585 | s = client->obuf; |
586 | stream_reset (s); | |
5048fe14 | 587 | memset(&dummy_nh, 0, sizeof(struct nexthop)); |
588 | ||
7076bb2f FL |
589 | zserv_create_header (s, cmd, rib->vrf_id); |
590 | ||
c1b9800a | 591 | /* Put type and nexthop. */ |
718e3744 | 592 | stream_putc (s, rib->type); |
7c8ff89e | 593 | stream_putw (s, rib->instance); |
718e3744 | 594 | stream_putc (s, rib->flags); |
5048fe14 | 595 | |
1dcb5172 | 596 | /* marker for message flags field */ |
597 | messmark = stream_get_endp (s); | |
598 | stream_putc (s, 0); | |
718e3744 | 599 | |
600 | /* Prefix. */ | |
601 | psize = PSIZE (p->prefixlen); | |
602 | stream_putc (s, p->prefixlen); | |
b9df2d25 | 603 | stream_write (s, (u_char *) & p->u.prefix, psize); |
604 | ||
718e3744 | 605 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
606 | { | |
5048fe14 | 607 | /* We don't send any nexthops when there's a multipath */ |
608 | if (rib->nexthop_active_num > 1) | |
609 | { | |
610 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
611 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
612 | ||
613 | stream_putc(s, 1); | |
614 | if (p->family == AF_INET) | |
615 | { | |
616 | stream_put_in_addr (s, &dummy_nh.gate.ipv4); | |
617 | } | |
618 | else if (p->family == AF_INET6) | |
619 | { | |
620 | stream_write (s, (u_char *) &dummy_nh.gate.ipv6, 16); | |
621 | } | |
622 | else | |
623 | { | |
624 | /* We don't handle anything else now, abort */ | |
625 | zlog_err("%s: Unable to redistribute route of unknown family, %d\n", | |
626 | __func__, p->family); | |
627 | return -1; | |
628 | } | |
629 | stream_putc (s, 1); | |
630 | stream_putl (s, 0); /* dummy ifindex */ | |
631 | break; | |
632 | } | |
633 | ||
fa713d9e CF |
634 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
635 | || nexthop_has_fib_child(nexthop)) | |
b9df2d25 | 636 | { |
1dcb5172 | 637 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); |
638 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
1dcb5172 | 639 | if (nhnummark == 0) |
640 | { | |
641 | nhnummark = stream_get_endp (s); | |
642 | stream_putc (s, 1); /* placeholder */ | |
643 | } | |
b9df2d25 | 644 | nhnum++; |
645 | ||
646 | switch(nexthop->type) | |
647 | { | |
648 | case NEXTHOP_TYPE_IPV4: | |
649 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
650 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
651 | break; | |
b9df2d25 | 652 | case NEXTHOP_TYPE_IPV6: |
653 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
5048fe14 | 654 | /* Only BGP supports IPv4 prefix with IPv6 NH, so kill this */ |
655 | if (p->family == AF_INET) | |
656 | stream_put_in_addr(s, &dummy_nh.gate.ipv4); | |
657 | else | |
658 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); | |
b9df2d25 | 659 | break; |
b9df2d25 | 660 | default: |
5048fe14 | 661 | if (cmd == ZEBRA_REDISTRIBUTE_IPV4_ADD |
662 | || cmd == ZEBRA_REDISTRIBUTE_IPV4_DEL) | |
b9df2d25 | 663 | { |
664 | struct in_addr empty; | |
44983cf8 | 665 | memset (&empty, 0, sizeof (struct in_addr)); |
b9df2d25 | 666 | stream_write (s, (u_char *) &empty, IPV4_MAX_BYTELEN); |
667 | } | |
668 | else | |
669 | { | |
670 | struct in6_addr empty; | |
671 | memset (&empty, 0, sizeof (struct in6_addr)); | |
672 | stream_write (s, (u_char *) &empty, IPV6_MAX_BYTELEN); | |
673 | } | |
674 | } | |
675 | ||
676 | /* Interface index. */ | |
677 | stream_putc (s, 1); | |
678 | stream_putl (s, nexthop->ifindex); | |
679 | ||
680 | break; | |
681 | } | |
718e3744 | 682 | } |
683 | ||
684 | /* Metric */ | |
5048fe14 | 685 | if (cmd == ZEBRA_REDISTRIBUTE_IPV4_ADD || cmd == ZEBRA_REDISTRIBUTE_IPV6_ADD) |
1dcb5172 | 686 | { |
fbf5d033 | 687 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_DISTANCE); |
688 | stream_putc (s, rib->distance); | |
1dcb5172 | 689 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_METRIC); |
690 | stream_putl (s, rib->metric); | |
0d9551dc DS |
691 | |
692 | /* tag */ | |
693 | if (rib->tag) | |
694 | { | |
695 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
696 | stream_putw(s, rib->tag); | |
697 | } | |
1dcb5172 | 698 | } |
5048fe14 | 699 | |
1dcb5172 | 700 | /* write real message flags value */ |
701 | stream_putc_at (s, messmark, zapi_flags); | |
5048fe14 | 702 | |
b9df2d25 | 703 | /* Write next-hop number */ |
704 | if (nhnummark) | |
c1eaa442 | 705 | stream_putc_at (s, nhnummark, nhnum); |
5048fe14 | 706 | |
718e3744 | 707 | /* Write packet size. */ |
708 | stream_putw_at (s, 0, stream_get_endp (s)); | |
709 | ||
719e9741 | 710 | return zebra_server_send_message(client); |
718e3744 | 711 | } |
712 | ||
b9df2d25 | 713 | #ifdef HAVE_IPV6 |
719e9741 | 714 | static int |
7076bb2f FL |
715 | zsend_ipv6_nexthop_lookup (struct zserv *client, struct in6_addr *addr, |
716 | vrf_id_t vrf_id) | |
718e3744 | 717 | { |
718 | struct stream *s; | |
719 | struct rib *rib; | |
720 | unsigned long nump; | |
721 | u_char num; | |
722 | struct nexthop *nexthop; | |
723 | ||
724 | /* Lookup nexthop. */ | |
7076bb2f | 725 | rib = rib_match_ipv6 (addr, vrf_id); |
718e3744 | 726 | |
727 | /* Get output stream. */ | |
728 | s = client->obuf; | |
729 | stream_reset (s); | |
730 | ||
731 | /* Fill in result. */ | |
7076bb2f | 732 | zserv_create_header (s, ZEBRA_IPV6_NEXTHOP_LOOKUP, vrf_id); |
718e3744 | 733 | stream_put (s, &addr, 16); |
734 | ||
735 | if (rib) | |
736 | { | |
737 | stream_putl (s, rib->metric); | |
738 | num = 0; | |
9985f83c | 739 | nump = stream_get_endp(s); |
718e3744 | 740 | stream_putc (s, 0); |
fa713d9e CF |
741 | /* Only non-recursive routes are elegible to resolve nexthop we |
742 | * are looking up. Therefore, we will just iterate over the top | |
743 | * chain of nexthops. */ | |
718e3744 | 744 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
745 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
746 | { | |
747 | stream_putc (s, nexthop->type); | |
748 | switch (nexthop->type) | |
749 | { | |
750 | case ZEBRA_NEXTHOP_IPV6: | |
751 | stream_put (s, &nexthop->gate.ipv6, 16); | |
752 | break; | |
753 | case ZEBRA_NEXTHOP_IPV6_IFINDEX: | |
718e3744 | 754 | stream_put (s, &nexthop->gate.ipv6, 16); |
755 | stream_putl (s, nexthop->ifindex); | |
756 | break; | |
757 | case ZEBRA_NEXTHOP_IFINDEX: | |
718e3744 | 758 | stream_putl (s, nexthop->ifindex); |
759 | break; | |
fa2b17e3 | 760 | default: |
761 | /* do nothing */ | |
762 | break; | |
718e3744 | 763 | } |
764 | num++; | |
765 | } | |
766 | stream_putc_at (s, nump, num); | |
767 | } | |
768 | else | |
769 | { | |
770 | stream_putl (s, 0); | |
771 | stream_putc (s, 0); | |
772 | } | |
773 | ||
774 | stream_putw_at (s, 0, stream_get_endp (s)); | |
04b02fda | 775 | |
719e9741 | 776 | return zebra_server_send_message(client); |
718e3744 | 777 | } |
778 | #endif /* HAVE_IPV6 */ | |
779 | ||
b9df2d25 | 780 | static int |
7076bb2f FL |
781 | zsend_ipv4_nexthop_lookup (struct zserv *client, struct in_addr addr, |
782 | vrf_id_t vrf_id) | |
718e3744 | 783 | { |
784 | struct stream *s; | |
785 | struct rib *rib; | |
786 | unsigned long nump; | |
787 | u_char num; | |
788 | struct nexthop *nexthop; | |
789 | ||
790 | /* Lookup nexthop. */ | |
7076bb2f | 791 | rib = rib_match_ipv4 (addr, vrf_id); |
718e3744 | 792 | |
793 | /* Get output stream. */ | |
794 | s = client->obuf; | |
795 | stream_reset (s); | |
796 | ||
797 | /* Fill in result. */ | |
7076bb2f | 798 | zserv_create_header (s, ZEBRA_IPV4_NEXTHOP_LOOKUP, vrf_id); |
718e3744 | 799 | stream_put_in_addr (s, &addr); |
800 | ||
801 | if (rib) | |
802 | { | |
bb97e462 CF |
803 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
804 | zlog_debug("%s: Matching rib entry found.", __func__); | |
718e3744 | 805 | stream_putl (s, rib->metric); |
806 | num = 0; | |
9985f83c | 807 | nump = stream_get_endp(s); |
718e3744 | 808 | stream_putc (s, 0); |
fa713d9e CF |
809 | /* Only non-recursive routes are elegible to resolve the nexthop we |
810 | * are looking up. Therefore, we will just iterate over the top | |
811 | * chain of nexthops. */ | |
718e3744 | 812 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
813 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
814 | { | |
815 | stream_putc (s, nexthop->type); | |
816 | switch (nexthop->type) | |
817 | { | |
818 | case ZEBRA_NEXTHOP_IPV4: | |
819 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
820 | break; | |
bb97e462 CF |
821 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
822 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
823 | stream_putl (s, nexthop->ifindex); | |
824 | break; | |
718e3744 | 825 | case ZEBRA_NEXTHOP_IFINDEX: |
718e3744 | 826 | stream_putl (s, nexthop->ifindex); |
827 | break; | |
fa2b17e3 | 828 | default: |
829 | /* do nothing */ | |
830 | break; | |
718e3744 | 831 | } |
832 | num++; | |
833 | } | |
834 | stream_putc_at (s, nump, num); | |
835 | } | |
836 | else | |
837 | { | |
bb97e462 CF |
838 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
839 | zlog_debug("%s: No matching rib entry found.", __func__); | |
718e3744 | 840 | stream_putl (s, 0); |
841 | stream_putc (s, 0); | |
842 | } | |
843 | ||
844 | stream_putw_at (s, 0, stream_get_endp (s)); | |
845 | ||
719e9741 | 846 | return zebra_server_send_message(client); |
718e3744 | 847 | } |
848 | ||
fb018d25 DS |
849 | /* Nexthop register */ |
850 | static int | |
078430f6 | 851 | zserv_rnh_register (struct zserv *client, int sock, u_short length, |
d651649e | 852 | rnh_type_t type, struct zebra_vrf *zvrf) |
fb018d25 DS |
853 | { |
854 | struct rnh *rnh; | |
855 | struct stream *s; | |
856 | struct prefix p; | |
857 | u_short l = 0; | |
078430f6 | 858 | u_char flags = 0; |
fb018d25 DS |
859 | |
860 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 DS |
861 | zlog_debug("rnh_register msg from client %s: length=%d, type=%s\n", |
862 | zebra_route_string(client->proto), length, | |
863 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route"); | |
fb018d25 DS |
864 | |
865 | s = client->ibuf; | |
866 | ||
078430f6 DS |
867 | client->nh_reg_time = quagga_time(NULL); |
868 | ||
fb018d25 DS |
869 | while (l < length) |
870 | { | |
078430f6 | 871 | flags = stream_getc(s); |
fb018d25 DS |
872 | p.family = stream_getw(s); |
873 | p.prefixlen = stream_getc(s); | |
fc9a856f | 874 | l += 4; |
078430f6 DS |
875 | if (p.family == AF_INET) |
876 | { | |
877 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
878 | l += IPV4_MAX_BYTELEN; | |
879 | } | |
880 | else if (p.family == AF_INET6) | |
881 | { | |
882 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
883 | l += IPV6_MAX_BYTELEN; | |
884 | } | |
885 | else | |
886 | { | |
887 | zlog_err("rnh_register: Received unknown family type %d\n", | |
888 | p.family); | |
889 | return -1; | |
890 | } | |
d651649e | 891 | rnh = zebra_add_rnh(&p, zvrf->vrf_id, type); |
078430f6 DS |
892 | if (type == RNH_NEXTHOP_TYPE) |
893 | { | |
894 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
895 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
896 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
897 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
898 | } | |
899 | else if (type == RNH_IMPORT_CHECK_TYPE) | |
900 | { | |
901 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
902 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
903 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
904 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
905 | } | |
906 | ||
d651649e | 907 | zebra_add_rnh_client(rnh, client, type, zvrf->vrf_id); |
078430f6 | 908 | /* Anything not AF_INET/INET6 has been filtered out above */ |
d651649e | 909 | zebra_evaluate_rnh(zvrf->vrf_id, p.family, 1, type, &p); |
fb018d25 | 910 | } |
fb018d25 DS |
911 | return 0; |
912 | } | |
913 | ||
914 | /* Nexthop register */ | |
915 | static int | |
078430f6 | 916 | zserv_rnh_unregister (struct zserv *client, int sock, u_short length, |
d651649e | 917 | rnh_type_t type, struct zebra_vrf *zvrf) |
fb018d25 DS |
918 | { |
919 | struct rnh *rnh; | |
920 | struct stream *s; | |
921 | struct prefix p; | |
922 | u_short l = 0; | |
923 | ||
924 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 | 925 | zlog_debug("rnh_unregister msg from client %s: length=%d\n", |
fb018d25 DS |
926 | zebra_route_string(client->proto), length); |
927 | ||
928 | s = client->ibuf; | |
929 | ||
930 | while (l < length) | |
931 | { | |
4e3afb14 | 932 | (void)stream_getc(s); //Connected or not. Not used in this function |
fb018d25 DS |
933 | p.family = stream_getw(s); |
934 | p.prefixlen = stream_getc(s); | |
fc9a856f | 935 | l += 4; |
078430f6 DS |
936 | if (p.family == AF_INET) |
937 | { | |
938 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
939 | l += IPV4_MAX_BYTELEN; | |
940 | } | |
941 | else if (p.family == AF_INET6) | |
942 | { | |
943 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
944 | l += IPV6_MAX_BYTELEN; | |
945 | } | |
946 | else | |
947 | { | |
948 | zlog_err("rnh_register: Received unknown family type %d\n", | |
949 | p.family); | |
950 | return -1; | |
951 | } | |
d651649e | 952 | rnh = zebra_lookup_rnh(&p, zvrf->vrf_id, type); |
fb018d25 | 953 | if (rnh) |
04b02fda DS |
954 | { |
955 | client->nh_dereg_time = quagga_time(NULL); | |
078430f6 | 956 | zebra_remove_rnh_client(rnh, client, type); |
04b02fda | 957 | } |
fb018d25 DS |
958 | } |
959 | return 0; | |
960 | } | |
961 | ||
b9df2d25 | 962 | static int |
7076bb2f FL |
963 | zsend_ipv4_import_lookup (struct zserv *client, struct prefix_ipv4 *p, |
964 | vrf_id_t vrf_id) | |
718e3744 | 965 | { |
966 | struct stream *s; | |
967 | struct rib *rib; | |
968 | unsigned long nump; | |
969 | u_char num; | |
970 | struct nexthop *nexthop; | |
971 | ||
972 | /* Lookup nexthop. */ | |
7076bb2f | 973 | rib = rib_lookup_ipv4 (p, vrf_id); |
718e3744 | 974 | |
975 | /* Get output stream. */ | |
976 | s = client->obuf; | |
977 | stream_reset (s); | |
978 | ||
979 | /* Fill in result. */ | |
7076bb2f | 980 | zserv_create_header (s, ZEBRA_IPV4_IMPORT_LOOKUP, vrf_id); |
718e3744 | 981 | stream_put_in_addr (s, &p->prefix); |
982 | ||
983 | if (rib) | |
984 | { | |
985 | stream_putl (s, rib->metric); | |
986 | num = 0; | |
9985f83c | 987 | nump = stream_get_endp(s); |
718e3744 | 988 | stream_putc (s, 0); |
989 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
fa713d9e CF |
990 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
991 | || nexthop_has_fib_child(nexthop)) | |
718e3744 | 992 | { |
993 | stream_putc (s, nexthop->type); | |
994 | switch (nexthop->type) | |
995 | { | |
996 | case ZEBRA_NEXTHOP_IPV4: | |
997 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
998 | break; | |
a12afd5e CF |
999 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1000 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
1001 | stream_putl (s, nexthop->ifindex); | |
1002 | break; | |
718e3744 | 1003 | case ZEBRA_NEXTHOP_IFINDEX: |
718e3744 | 1004 | stream_putl (s, nexthop->ifindex); |
1005 | break; | |
fa2b17e3 | 1006 | default: |
1007 | /* do nothing */ | |
1008 | break; | |
718e3744 | 1009 | } |
1010 | num++; | |
1011 | } | |
1012 | stream_putc_at (s, nump, num); | |
1013 | } | |
1014 | else | |
1015 | { | |
1016 | stream_putl (s, 0); | |
1017 | stream_putc (s, 0); | |
1018 | } | |
1019 | ||
1020 | stream_putw_at (s, 0, stream_get_endp (s)); | |
04b02fda | 1021 | |
719e9741 | 1022 | return zebra_server_send_message(client); |
718e3744 | 1023 | } |
6b0655a2 | 1024 | |
18a6dce6 | 1025 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
1026 | int | |
c6ffe645 FL |
1027 | zsend_router_id_update (struct zserv *client, struct prefix *p, |
1028 | vrf_id_t vrf_id) | |
18a6dce6 | 1029 | { |
1030 | struct stream *s; | |
1031 | int blen; | |
1032 | ||
1033 | /* Check this client need interface information. */ | |
7076bb2f | 1034 | if (! vrf_bitmap_check (client->ridinfo, vrf_id)) |
719e9741 | 1035 | return 0; |
18a6dce6 | 1036 | |
1037 | s = client->obuf; | |
1038 | stream_reset (s); | |
1039 | ||
18a6dce6 | 1040 | /* Message type. */ |
7076bb2f | 1041 | zserv_create_header (s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); |
18a6dce6 | 1042 | |
1043 | /* Prefix information. */ | |
1044 | stream_putc (s, p->family); | |
1045 | blen = prefix_blen (p); | |
1046 | stream_put (s, &p->u.prefix, blen); | |
1047 | stream_putc (s, p->prefixlen); | |
1048 | ||
1049 | /* Write packet size. */ | |
1050 | stream_putw_at (s, 0, stream_get_endp (s)); | |
1051 | ||
719e9741 | 1052 | return zebra_server_send_message(client); |
18a6dce6 | 1053 | } |
6b0655a2 | 1054 | |
718e3744 | 1055 | /* Register zebra server interface information. Send current all |
1056 | interface and address information. */ | |
719e9741 | 1057 | static int |
d651649e | 1058 | zread_interface_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1059 | { |
1eb8ef25 | 1060 | struct listnode *ifnode, *ifnnode; |
4fe51714 | 1061 | vrf_iter_t iter; |
718e3744 | 1062 | struct interface *ifp; |
4fe51714 | 1063 | struct zebra_vrf *zvrf_iter; |
718e3744 | 1064 | |
1065 | /* Interface information is needed. */ | |
d651649e | 1066 | vrf_bitmap_set (client->ifinfo, zvrf->vrf_id); |
718e3744 | 1067 | |
4fe51714 | 1068 | for (iter = vrf_first (); iter != VRF_ITER_INVALID; iter = vrf_next (iter)) |
718e3744 | 1069 | { |
4fe51714 DS |
1070 | zvrf_iter = vrf_iter2info (iter); |
1071 | for (ALL_LIST_ELEMENTS (vrf_iflist (zvrf_iter->vrf_id), ifnode, ifnnode, ifp)) | |
1072 | { | |
1073 | /* Skip pseudo interface. */ | |
1074 | if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1075 | continue; | |
718e3744 | 1076 | |
4fe51714 DS |
1077 | if (zsend_interface_add (client, ifp) < 0) |
1078 | return -1; | |
718e3744 | 1079 | |
4fe51714 DS |
1080 | if (zsend_interface_addresses (client, ifp) < 0) |
1081 | return -1; | |
1082 | } | |
718e3744 | 1083 | } |
719e9741 | 1084 | return 0; |
718e3744 | 1085 | } |
1086 | ||
1087 | /* Unregister zebra server interface information. */ | |
719e9741 | 1088 | static int |
d651649e | 1089 | zread_interface_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1090 | { |
d651649e | 1091 | vrf_bitmap_unset (client->ifinfo, zvrf->vrf_id); |
719e9741 | 1092 | return 0; |
718e3744 | 1093 | } |
1094 | ||
6878b9db DS |
1095 | void |
1096 | zserv_nexthop_num_warn (const char *caller, const struct prefix *p, const u_char nexthop_num) | |
1097 | { | |
7c5d2b76 | 1098 | if (nexthop_num > MULTIPATH_NUM) |
6878b9db | 1099 | { |
4690c7d7 DS |
1100 | char buff[PREFIX2STR_BUFFER]; |
1101 | prefix2str(p, buff, sizeof (buff)); | |
6878b9db DS |
1102 | zlog_warn("%s: Prefix %s has %d nexthops, but we can only use the first %d", |
1103 | caller, buff, nexthop_num, MULTIPATH_NUM); | |
1104 | } | |
1105 | } | |
1106 | ||
718e3744 | 1107 | /* This function support multiple nexthop. */ |
b9df2d25 | 1108 | /* |
1109 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update rib and | |
1110 | * add kernel route. | |
1111 | */ | |
719e9741 | 1112 | static int |
d651649e | 1113 | zread_ipv4_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1114 | { |
1115 | int i; | |
1116 | struct rib *rib; | |
1117 | struct prefix_ipv4 p; | |
1118 | u_char message; | |
1119 | struct in_addr nexthop; | |
1120 | u_char nexthop_num; | |
1121 | u_char nexthop_type; | |
1122 | struct stream *s; | |
1123 | unsigned int ifindex; | |
d44ca835 | 1124 | safi_t safi; |
04b02fda | 1125 | int ret; |
718e3744 | 1126 | |
1127 | /* Get input stream. */ | |
1128 | s = client->ibuf; | |
1129 | ||
1130 | /* Allocate new rib. */ | |
4d38fdb4 | 1131 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); |
1132 | ||
718e3744 | 1133 | /* Type, flags, message. */ |
1134 | rib->type = stream_getc (s); | |
7c8ff89e | 1135 | rib->instance = stream_getw (s); |
718e3744 | 1136 | rib->flags = stream_getc (s); |
b9df2d25 | 1137 | message = stream_getc (s); |
cddf391b | 1138 | safi = stream_getw (s); |
718e3744 | 1139 | rib->uptime = time (NULL); |
1140 | ||
1141 | /* IPv4 prefix. */ | |
1142 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1143 | p.family = AF_INET; | |
1144 | p.prefixlen = stream_getc (s); | |
1145 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1146 | ||
78104b9b | 1147 | /* VRF ID */ |
d651649e | 1148 | rib->vrf_id = zvrf->vrf_id; |
78104b9b | 1149 | |
718e3744 | 1150 | /* Nexthop parse. */ |
1151 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1152 | { | |
1153 | nexthop_num = stream_getc (s); | |
6878b9db | 1154 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
718e3744 | 1155 | |
1156 | for (i = 0; i < nexthop_num; i++) | |
1157 | { | |
1158 | nexthop_type = stream_getc (s); | |
1159 | ||
1160 | switch (nexthop_type) | |
1161 | { | |
1162 | case ZEBRA_NEXTHOP_IFINDEX: | |
1163 | ifindex = stream_getl (s); | |
a399694f | 1164 | rib_nexthop_ifindex_add (rib, ifindex); |
718e3744 | 1165 | break; |
718e3744 | 1166 | case ZEBRA_NEXTHOP_IPV4: |
1167 | nexthop.s_addr = stream_get_ipv4 (s); | |
a399694f | 1168 | rib_nexthop_ipv4_add (rib, &nexthop, NULL); |
718e3744 | 1169 | break; |
c963c203 JT |
1170 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1171 | nexthop.s_addr = stream_get_ipv4 (s); | |
1172 | ifindex = stream_getl (s); | |
a399694f | 1173 | rib_nexthop_ipv4_ifindex_add (rib, &nexthop, NULL, ifindex); |
c963c203 | 1174 | break; |
718e3744 | 1175 | case ZEBRA_NEXTHOP_IPV6: |
9985f83c | 1176 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1177 | break; |
6902c69a | 1178 | case ZEBRA_NEXTHOP_BLACKHOLE: |
a399694f | 1179 | rib_nexthop_blackhole_add (rib); |
6902c69a SV |
1180 | break; |
1181 | } | |
718e3744 | 1182 | } |
1183 | } | |
1184 | ||
1185 | /* Distance. */ | |
1186 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1187 | rib->distance = stream_getc (s); | |
1188 | ||
1189 | /* Metric. */ | |
1190 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1191 | rib->metric = stream_getl (s); | |
1192 | ||
0d9551dc DS |
1193 | /* Tag */ |
1194 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1195 | rib->tag = stream_getw (s); | |
1196 | else | |
1197 | rib->tag = 0; | |
1198 | ||
171eee31 | 1199 | /* Table */ |
d651649e | 1200 | rib->table = zvrf->table_id; |
12f6fb97 | 1201 | |
04b02fda DS |
1202 | ret = rib_add_ipv4_multipath (&p, rib, safi); |
1203 | ||
1204 | /* Stats */ | |
1205 | if (ret > 0) | |
1206 | client->v4_route_add_cnt++; | |
1207 | else if (ret < 0) | |
1208 | client->v4_route_upd8_cnt++; | |
719e9741 | 1209 | return 0; |
718e3744 | 1210 | } |
1211 | ||
1212 | /* Zebra server IPv4 prefix delete function. */ | |
719e9741 | 1213 | static int |
d651649e | 1214 | zread_ipv4_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1215 | { |
1216 | int i; | |
1217 | struct stream *s; | |
1218 | struct zapi_ipv4 api; | |
6902c69a | 1219 | struct in_addr nexthop, *nexthop_p; |
718e3744 | 1220 | unsigned long ifindex; |
1221 | struct prefix_ipv4 p; | |
1222 | u_char nexthop_num; | |
1223 | u_char nexthop_type; | |
12f6fb97 | 1224 | u_int32_t table_id; |
12f6fb97 | 1225 | |
718e3744 | 1226 | s = client->ibuf; |
1227 | ifindex = 0; | |
1228 | nexthop.s_addr = 0; | |
6902c69a | 1229 | nexthop_p = NULL; |
718e3744 | 1230 | |
1231 | /* Type, flags, message. */ | |
1232 | api.type = stream_getc (s); | |
7c8ff89e | 1233 | api.instance = stream_getw (s); |
718e3744 | 1234 | api.flags = stream_getc (s); |
1235 | api.message = stream_getc (s); | |
cddf391b | 1236 | api.safi = stream_getw (s); |
718e3744 | 1237 | |
1238 | /* IPv4 prefix. */ | |
1239 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1240 | p.family = AF_INET; | |
1241 | p.prefixlen = stream_getc (s); | |
1242 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1243 | ||
1244 | /* Nexthop, ifindex, distance, metric. */ | |
1245 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1246 | { | |
1247 | nexthop_num = stream_getc (s); | |
1248 | ||
1249 | for (i = 0; i < nexthop_num; i++) | |
1250 | { | |
1251 | nexthop_type = stream_getc (s); | |
1252 | ||
1253 | switch (nexthop_type) | |
1254 | { | |
1255 | case ZEBRA_NEXTHOP_IFINDEX: | |
1256 | ifindex = stream_getl (s); | |
1257 | break; | |
718e3744 | 1258 | case ZEBRA_NEXTHOP_IPV4: |
1259 | nexthop.s_addr = stream_get_ipv4 (s); | |
6902c69a | 1260 | nexthop_p = &nexthop; |
718e3744 | 1261 | break; |
c963c203 JT |
1262 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1263 | nexthop.s_addr = stream_get_ipv4 (s); | |
23f5f7c3 | 1264 | nexthop_p = &nexthop; |
c963c203 JT |
1265 | ifindex = stream_getl (s); |
1266 | break; | |
718e3744 | 1267 | case ZEBRA_NEXTHOP_IPV6: |
9985f83c | 1268 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1269 | break; |
1270 | } | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | /* Distance. */ | |
1275 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1276 | api.distance = stream_getc (s); | |
1277 | else | |
1278 | api.distance = 0; | |
1279 | ||
1280 | /* Metric. */ | |
1281 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1282 | api.metric = stream_getl (s); | |
1283 | else | |
1284 | api.metric = 0; | |
1285 | ||
0d9551dc DS |
1286 | /* tag */ |
1287 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1288 | api.tag = stream_getw (s); | |
1289 | else | |
1290 | api.tag = 0; | |
1291 | ||
d651649e | 1292 | table_id = zvrf->table_id; |
12f6fb97 | 1293 | |
7c8ff89e | 1294 | rib_delete_ipv4 (api.type, api.instance, api.flags, &p, nexthop_p, ifindex, |
d651649e | 1295 | zvrf->vrf_id, table_id, api.safi); |
04b02fda | 1296 | client->v4_route_del_cnt++; |
719e9741 | 1297 | return 0; |
718e3744 | 1298 | } |
1299 | ||
1300 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 1301 | static int |
7076bb2f | 1302 | zread_ipv4_nexthop_lookup (struct zserv *client, u_short length, |
d651649e | 1303 | struct zebra_vrf *zvrf) |
718e3744 | 1304 | { |
1305 | struct in_addr addr; | |
bb97e462 | 1306 | char buf[BUFSIZ]; |
718e3744 | 1307 | |
1308 | addr.s_addr = stream_get_ipv4 (client->ibuf); | |
bb97e462 CF |
1309 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
1310 | zlog_debug("%s: looking up %s", __func__, | |
1311 | inet_ntop (AF_INET, &addr, buf, BUFSIZ)); | |
d651649e | 1312 | return zsend_ipv4_nexthop_lookup (client, addr, zvrf->vrf_id); |
718e3744 | 1313 | } |
1314 | ||
1315 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 1316 | static int |
7076bb2f | 1317 | zread_ipv4_import_lookup (struct zserv *client, u_short length, |
d651649e | 1318 | struct zebra_vrf *zvrf) |
718e3744 | 1319 | { |
1320 | struct prefix_ipv4 p; | |
1321 | ||
1322 | p.family = AF_INET; | |
1323 | p.prefixlen = stream_getc (client->ibuf); | |
1324 | p.prefix.s_addr = stream_get_ipv4 (client->ibuf); | |
1325 | ||
d651649e | 1326 | return zsend_ipv4_import_lookup (client, &p, zvrf->vrf_id); |
718e3744 | 1327 | } |
1328 | ||
8a92a8a0 DS |
1329 | /* Zebra server IPv6 prefix add function. */ |
1330 | static int | |
d651649e | 1331 | zread_ipv4_route_ipv6_nexthop_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
8a92a8a0 DS |
1332 | { |
1333 | int i; | |
1334 | struct stream *s; | |
1335 | struct in6_addr nexthop; | |
1336 | struct rib *rib; | |
1337 | u_char message; | |
1338 | u_char nexthop_num; | |
1339 | u_char nexthop_type; | |
1340 | unsigned long ifindex; | |
1341 | struct prefix_ipv4 p; | |
8a92a8a0 DS |
1342 | safi_t safi; |
1343 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1344 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1345 | int ret; | |
1346 | ||
1347 | /* Get input stream. */ | |
1348 | s = client->ibuf; | |
1349 | ||
1350 | ifindex = 0; | |
1351 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1352 | ||
1353 | /* Allocate new rib. */ | |
1354 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1355 | ||
1356 | /* Type, flags, message. */ | |
1357 | rib->type = stream_getc (s); | |
1358 | rib->instance = stream_getw (s); | |
1359 | rib->flags = stream_getc (s); | |
1360 | message = stream_getc (s); | |
1361 | safi = stream_getw (s); | |
1362 | rib->uptime = time (NULL); | |
1363 | ||
1364 | /* IPv4 prefix. */ | |
1365 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1366 | p.family = AF_INET; | |
1367 | p.prefixlen = stream_getc (s); | |
1368 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1369 | ||
154caaed | 1370 | /* VRF ID */ |
d651649e | 1371 | rib->vrf_id = zvrf->vrf_id; |
154caaed | 1372 | |
8a92a8a0 DS |
1373 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1374 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1375 | * these. Clients should send the same number of paired set of | |
1376 | * next-hop-addr/next-hop-ifindices. */ | |
1377 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1378 | { | |
1379 | int nh_count = 0; | |
1380 | int if_count = 0; | |
1381 | int max_nh_if = 0; | |
1382 | ||
1383 | nexthop_num = stream_getc (s); | |
6878b9db | 1384 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
8a92a8a0 DS |
1385 | for (i = 0; i < nexthop_num; i++) |
1386 | { | |
1387 | nexthop_type = stream_getc (s); | |
1388 | ||
1389 | switch (nexthop_type) | |
1390 | { | |
1391 | case ZEBRA_NEXTHOP_IPV6: | |
1392 | stream_get (&nexthop, s, 16); | |
1393 | if (nh_count < MULTIPATH_NUM) { | |
1394 | nexthops[nh_count++] = nexthop; | |
1395 | } | |
1396 | break; | |
1397 | case ZEBRA_NEXTHOP_IFINDEX: | |
1398 | if (if_count < MULTIPATH_NUM) { | |
1399 | ifindices[if_count++] = stream_getl (s); | |
1400 | } | |
1401 | break; | |
1402 | case ZEBRA_NEXTHOP_BLACKHOLE: | |
a399694f | 1403 | rib_nexthop_blackhole_add (rib); |
8a92a8a0 DS |
1404 | break; |
1405 | } | |
1406 | } | |
1407 | ||
1408 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1409 | for (i = 0; i < max_nh_if; i++) | |
1410 | { | |
1411 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
1412 | if ((i < if_count) && ifindices[i]) { | |
a399694f | 1413 | rib_nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); |
8a92a8a0 DS |
1414 | } |
1415 | else { | |
a399694f | 1416 | rib_nexthop_ipv6_add (rib, &nexthops[i]); |
8a92a8a0 DS |
1417 | } |
1418 | } | |
1419 | else { | |
1420 | if ((i < if_count) && ifindices[i]) { | |
a399694f | 1421 | rib_nexthop_ifindex_add (rib, ifindices[i]); |
8a92a8a0 DS |
1422 | } |
1423 | } | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | /* Distance. */ | |
1428 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1429 | rib->distance = stream_getc (s); | |
1430 | ||
1431 | /* Metric. */ | |
1432 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1433 | rib->metric = stream_getl (s); | |
1434 | ||
1435 | /* Tag */ | |
1436 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1437 | rib->tag = stream_getw (s); | |
1438 | else | |
1439 | rib->tag = 0; | |
1440 | ||
1441 | /* Table */ | |
d651649e | 1442 | rib->table = zvrf->table_id; |
12f6fb97 | 1443 | |
8a92a8a0 DS |
1444 | ret = rib_add_ipv6_multipath ((struct prefix *)&p, rib, safi, ifindex); |
1445 | /* Stats */ | |
1446 | if (ret > 0) | |
1447 | client->v4_route_add_cnt++; | |
1448 | else if (ret < 0) | |
1449 | client->v4_route_upd8_cnt++; | |
1450 | ||
1451 | return 0; | |
1452 | } | |
1453 | ||
719e9741 | 1454 | static int |
d651649e | 1455 | zread_ipv6_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1456 | { |
1457 | int i; | |
1458 | struct stream *s; | |
718e3744 | 1459 | struct in6_addr nexthop; |
41fc2714 DS |
1460 | struct rib *rib; |
1461 | u_char message; | |
1462 | u_char nexthop_num; | |
1463 | u_char nexthop_type; | |
718e3744 | 1464 | unsigned long ifindex; |
1465 | struct prefix_ipv6 p; | |
41fc2714 DS |
1466 | safi_t safi; |
1467 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1468 | static unsigned int ifindices[MULTIPATH_NUM]; | |
04b02fda | 1469 | int ret; |
41fc2714 DS |
1470 | |
1471 | /* Get input stream. */ | |
718e3744 | 1472 | s = client->ibuf; |
41fc2714 | 1473 | |
718e3744 | 1474 | ifindex = 0; |
1475 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1476 | ||
41fc2714 DS |
1477 | /* Allocate new rib. */ |
1478 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1479 | ||
718e3744 | 1480 | /* Type, flags, message. */ |
41fc2714 | 1481 | rib->type = stream_getc (s); |
7c8ff89e | 1482 | rib->instance = stream_getw (s); |
41fc2714 DS |
1483 | rib->flags = stream_getc (s); |
1484 | message = stream_getc (s); | |
1485 | safi = stream_getw (s); | |
1486 | rib->uptime = time (NULL); | |
718e3744 | 1487 | |
41fc2714 | 1488 | /* IPv6 prefix. */ |
718e3744 | 1489 | memset (&p, 0, sizeof (struct prefix_ipv6)); |
1490 | p.family = AF_INET6; | |
1491 | p.prefixlen = stream_getc (s); | |
1492 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1493 | ||
41fc2714 DS |
1494 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1495 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1496 | * these. Clients should send the same number of paired set of | |
1497 | * next-hop-addr/next-hop-ifindices. */ | |
1498 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
718e3744 | 1499 | { |
41fc2714 DS |
1500 | int nh_count = 0; |
1501 | int if_count = 0; | |
1502 | int max_nh_if = 0; | |
718e3744 | 1503 | |
41fc2714 | 1504 | nexthop_num = stream_getc (s); |
6878b9db DS |
1505 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, nexthop_num); |
1506 | for (i = 0; i < nexthop_num; i++) | |
718e3744 | 1507 | { |
1508 | nexthop_type = stream_getc (s); | |
1509 | ||
1510 | switch (nexthop_type) | |
1511 | { | |
1512 | case ZEBRA_NEXTHOP_IPV6: | |
1513 | stream_get (&nexthop, s, 16); | |
41fc2714 DS |
1514 | if (nh_count < MULTIPATH_NUM) { |
1515 | nexthops[nh_count++] = nexthop; | |
1516 | } | |
718e3744 | 1517 | break; |
1518 | case ZEBRA_NEXTHOP_IFINDEX: | |
41fc2714 DS |
1519 | if (if_count < MULTIPATH_NUM) { |
1520 | ifindices[if_count++] = stream_getl (s); | |
1521 | } | |
718e3744 | 1522 | break; |
c3c0ac83 | 1523 | case ZEBRA_NEXTHOP_BLACKHOLE: |
a399694f | 1524 | rib_nexthop_blackhole_add (rib); |
c3c0ac83 | 1525 | break; |
718e3744 | 1526 | } |
1527 | } | |
41fc2714 DS |
1528 | |
1529 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1530 | for (i = 0; i < max_nh_if; i++) | |
1531 | { | |
1532 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
6f20b80d | 1533 | if ((i < if_count) && ifindices[i]) |
a399694f | 1534 | rib_nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); |
6f20b80d | 1535 | else |
a399694f | 1536 | rib_nexthop_ipv6_add (rib, &nexthops[i]); |
41fc2714 DS |
1537 | } |
1538 | else { | |
6f20b80d | 1539 | if ((i < if_count) && ifindices[i]) |
a399694f | 1540 | rib_nexthop_ifindex_add (rib, ifindices[i]); |
41fc2714 DS |
1541 | } |
1542 | } | |
718e3744 | 1543 | } |
1544 | ||
41fc2714 DS |
1545 | /* Distance. */ |
1546 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1547 | rib->distance = stream_getc (s); | |
718e3744 | 1548 | |
41fc2714 DS |
1549 | /* Metric. */ |
1550 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1551 | rib->metric = stream_getl (s); | |
718e3744 | 1552 | |
0d9551dc DS |
1553 | /* Tag */ |
1554 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1555 | rib->tag = stream_getw (s); | |
1556 | else | |
1557 | rib->tag = 0; | |
1558 | ||
154caaed | 1559 | /* VRF ID */ |
d651649e DS |
1560 | rib->vrf_id = zvrf->vrf_id; |
1561 | rib->table = zvrf->table_id; | |
154caaed | 1562 | |
8a92a8a0 | 1563 | ret = rib_add_ipv6_multipath ((struct prefix *)&p, rib, safi, ifindex); |
04b02fda DS |
1564 | /* Stats */ |
1565 | if (ret > 0) | |
1566 | client->v6_route_add_cnt++; | |
1567 | else if (ret < 0) | |
1568 | client->v6_route_upd8_cnt++; | |
1569 | ||
719e9741 | 1570 | return 0; |
718e3744 | 1571 | } |
1572 | ||
1573 | /* Zebra server IPv6 prefix delete function. */ | |
719e9741 | 1574 | static int |
d651649e | 1575 | zread_ipv6_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
718e3744 | 1576 | { |
1577 | int i; | |
1578 | struct stream *s; | |
1579 | struct zapi_ipv6 api; | |
1580 | struct in6_addr nexthop; | |
1581 | unsigned long ifindex; | |
1582 | struct prefix_ipv6 p; | |
1583 | ||
1584 | s = client->ibuf; | |
1585 | ifindex = 0; | |
1586 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1587 | ||
1588 | /* Type, flags, message. */ | |
1589 | api.type = stream_getc (s); | |
7c8ff89e | 1590 | api.instance = stream_getw (s); |
718e3744 | 1591 | api.flags = stream_getc (s); |
1592 | api.message = stream_getc (s); | |
f768f367 | 1593 | api.safi = stream_getw (s); |
718e3744 | 1594 | |
1595 | /* IPv4 prefix. */ | |
1596 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1597 | p.family = AF_INET6; | |
1598 | p.prefixlen = stream_getc (s); | |
1599 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1600 | ||
1601 | /* Nexthop, ifindex, distance, metric. */ | |
1602 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1603 | { | |
1604 | u_char nexthop_type; | |
1605 | ||
1606 | api.nexthop_num = stream_getc (s); | |
1607 | for (i = 0; i < api.nexthop_num; i++) | |
1608 | { | |
1609 | nexthop_type = stream_getc (s); | |
1610 | ||
1611 | switch (nexthop_type) | |
1612 | { | |
1613 | case ZEBRA_NEXTHOP_IPV6: | |
1614 | stream_get (&nexthop, s, 16); | |
1615 | break; | |
1616 | case ZEBRA_NEXTHOP_IFINDEX: | |
1617 | ifindex = stream_getl (s); | |
1618 | break; | |
1619 | } | |
1620 | } | |
1621 | } | |
1622 | ||
0d9551dc | 1623 | /* Distance. */ |
718e3744 | 1624 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) |
1625 | api.distance = stream_getc (s); | |
1626 | else | |
1627 | api.distance = 0; | |
0d9551dc DS |
1628 | |
1629 | /* Metric. */ | |
718e3744 | 1630 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) |
1631 | api.metric = stream_getl (s); | |
1632 | else | |
1633 | api.metric = 0; | |
1634 | ||
0d9551dc DS |
1635 | /* tag */ |
1636 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1637 | api.tag = stream_getw (s); | |
1638 | else | |
1639 | api.tag = 0; | |
1640 | ||
718e3744 | 1641 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) |
78104b9b | 1642 | rib_delete_ipv6 (api.type, api.instance, api.flags, &p, NULL, ifindex, |
d651649e | 1643 | zvrf->vrf_id, client->rtm_table, api.safi); |
718e3744 | 1644 | else |
78104b9b | 1645 | rib_delete_ipv6 (api.type, api.instance, api.flags, &p, &nexthop, ifindex, |
d651649e | 1646 | zvrf->vrf_id, client->rtm_table, api.safi); |
04b02fda DS |
1647 | |
1648 | client->v6_route_del_cnt++; | |
719e9741 | 1649 | return 0; |
718e3744 | 1650 | } |
1651 | ||
719e9741 | 1652 | static int |
7076bb2f | 1653 | zread_ipv6_nexthop_lookup (struct zserv *client, u_short length, |
d651649e | 1654 | struct zebra_vrf *zvrf) |
718e3744 | 1655 | { |
1656 | struct in6_addr addr; | |
1657 | char buf[BUFSIZ]; | |
1658 | ||
1659 | stream_get (&addr, client->ibuf, 16); | |
a5207089 CF |
1660 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
1661 | zlog_debug("%s: looking up %s", __func__, | |
1662 | inet_ntop (AF_INET6, &addr, buf, BUFSIZ)); | |
718e3744 | 1663 | |
d651649e | 1664 | return zsend_ipv6_nexthop_lookup (client, &addr, zvrf->vrf_id); |
718e3744 | 1665 | } |
718e3744 | 1666 | |
18a6dce6 | 1667 | /* Register zebra server router-id information. Send current router-id */ |
719e9741 | 1668 | static int |
d651649e | 1669 | zread_router_id_add (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
18a6dce6 | 1670 | { |
1671 | struct prefix p; | |
1672 | ||
1673 | /* Router-id information is needed. */ | |
d651649e | 1674 | vrf_bitmap_set (client->ridinfo, zvrf->vrf_id); |
18a6dce6 | 1675 | |
d651649e | 1676 | router_id_get (&p, zvrf->vrf_id); |
18a6dce6 | 1677 | |
d651649e | 1678 | return zsend_router_id_update (client, &p, zvrf->vrf_id); |
18a6dce6 | 1679 | } |
1680 | ||
1681 | /* Unregister zebra server router-id information. */ | |
719e9741 | 1682 | static int |
d651649e | 1683 | zread_router_id_delete (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
18a6dce6 | 1684 | { |
d651649e | 1685 | vrf_bitmap_unset (client->ridinfo, zvrf->vrf_id); |
719e9741 | 1686 | return 0; |
18a6dce6 | 1687 | } |
1688 | ||
2ea1ab1c VT |
1689 | /* Tie up route-type and client->sock */ |
1690 | static void | |
1691 | zread_hello (struct zserv *client) | |
1692 | { | |
1693 | /* type of protocol (lib/zebra.h) */ | |
1694 | u_char proto; | |
7c8ff89e DS |
1695 | u_short instance; |
1696 | ||
2ea1ab1c | 1697 | proto = stream_getc (client->ibuf); |
7c8ff89e | 1698 | instance = stream_getw (client->ibuf); |
2ea1ab1c VT |
1699 | |
1700 | /* accept only dynamic routing protocols */ | |
1701 | if ((proto < ZEBRA_ROUTE_MAX) | |
1702 | && (proto > ZEBRA_ROUTE_STATIC)) | |
1703 | { | |
1704 | zlog_notice ("client %d says hello and bids fair to announce only %s routes", | |
1705 | client->sock, zebra_route_string(proto)); | |
7c8ff89e DS |
1706 | if (instance) |
1707 | zlog_notice ("client protocol instance %d", instance); | |
2ea1ab1c | 1708 | |
fb018d25 | 1709 | client->proto = proto; |
7c8ff89e | 1710 | client->instance = instance; |
2ea1ab1c VT |
1711 | } |
1712 | } | |
1713 | ||
7076bb2f FL |
1714 | /* Unregister all information in a VRF. */ |
1715 | static int | |
d651649e | 1716 | zread_vrf_unregister (struct zserv *client, u_short length, struct zebra_vrf *zvrf) |
7076bb2f FL |
1717 | { |
1718 | int i; | |
1719 | afi_t afi; | |
1720 | ||
1721 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1722 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
d651649e DS |
1723 | vrf_bitmap_unset (client->redist[afi][i], zvrf->vrf_id); |
1724 | vrf_bitmap_unset (client->redist_default, zvrf->vrf_id); | |
1725 | vrf_bitmap_unset (client->ifinfo, zvrf->vrf_id); | |
1726 | vrf_bitmap_unset (client->ridinfo, zvrf->vrf_id); | |
7076bb2f FL |
1727 | |
1728 | return 0; | |
1729 | } | |
1730 | ||
4b33b75a | 1731 | /* Cleanup registered nexthops (across VRFs) upon client disconnect. */ |
1732 | static void | |
1733 | zebra_client_close_cleanup_rnh (struct zserv *client) | |
1734 | { | |
1735 | vrf_iter_t iter; | |
1736 | struct zebra_vrf *zvrf; | |
1737 | ||
1738 | for (iter = vrf_first (); iter != VRF_ITER_INVALID; iter = vrf_next (iter)) | |
1739 | { | |
1740 | if ((zvrf = vrf_iter2info (iter)) != NULL) | |
1741 | { | |
1742 | zebra_cleanup_rnh_client(zvrf->vrf_id, AF_INET, client, RNH_NEXTHOP_TYPE); | |
1743 | zebra_cleanup_rnh_client(zvrf->vrf_id, AF_INET6, client, RNH_NEXTHOP_TYPE); | |
1744 | zebra_cleanup_rnh_client(zvrf->vrf_id, AF_INET, client, RNH_IMPORT_CHECK_TYPE); | |
1745 | zebra_cleanup_rnh_client(zvrf->vrf_id, AF_INET6, client, RNH_IMPORT_CHECK_TYPE); | |
1746 | } | |
1747 | } | |
1748 | } | |
1749 | ||
718e3744 | 1750 | /* Close zebra client. */ |
b9df2d25 | 1751 | static void |
718e3744 | 1752 | zebra_client_close (struct zserv *client) |
1753 | { | |
567b877d | 1754 | /* Send client de-registration to BFD */ |
1755 | zebra_ptm_bfd_client_deregister(client); | |
1756 | ||
4b33b75a | 1757 | /* Cleanup any registered nexthops - across all VRFs. */ |
1758 | zebra_client_close_cleanup_rnh (client); | |
fb018d25 | 1759 | |
718e3744 | 1760 | /* Close file descriptor. */ |
1761 | if (client->sock) | |
1762 | { | |
7c8ff89e DS |
1763 | unsigned long nroutes; |
1764 | ||
718e3744 | 1765 | close (client->sock); |
7c8ff89e DS |
1766 | nroutes = rib_score_proto (client->proto, client->instance); |
1767 | zlog_notice ("client %d disconnected. %lu %s routes removed from the rib", | |
1768 | client->sock, nroutes, zebra_route_string (client->proto)); | |
718e3744 | 1769 | client->sock = -1; |
1770 | } | |
1771 | ||
1772 | /* Free stream buffers. */ | |
1773 | if (client->ibuf) | |
1774 | stream_free (client->ibuf); | |
1775 | if (client->obuf) | |
1776 | stream_free (client->obuf); | |
719e9741 | 1777 | if (client->wb) |
1778 | buffer_free(client->wb); | |
718e3744 | 1779 | |
1780 | /* Release threads. */ | |
1781 | if (client->t_read) | |
1782 | thread_cancel (client->t_read); | |
1783 | if (client->t_write) | |
1784 | thread_cancel (client->t_write); | |
719e9741 | 1785 | if (client->t_suicide) |
1786 | thread_cancel (client->t_suicide); | |
718e3744 | 1787 | |
1788 | /* Free client structure. */ | |
b21b19c5 | 1789 | listnode_delete (zebrad.client_list, client); |
718e3744 | 1790 | XFREE (0, client); |
1791 | } | |
1792 | ||
1793 | /* Make new client. */ | |
b9df2d25 | 1794 | static void |
718e3744 | 1795 | zebra_client_create (int sock) |
1796 | { | |
1797 | struct zserv *client; | |
7076bb2f FL |
1798 | int i; |
1799 | afi_t afi; | |
718e3744 | 1800 | |
1801 | client = XCALLOC (0, sizeof (struct zserv)); | |
1802 | ||
1803 | /* Make client input/output buffer. */ | |
1804 | client->sock = sock; | |
1805 | client->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
1806 | client->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
719e9741 | 1807 | client->wb = buffer_new(0); |
718e3744 | 1808 | |
1809 | /* Set table number. */ | |
b21b19c5 | 1810 | client->rtm_table = zebrad.rtm_table_default; |
718e3744 | 1811 | |
04b02fda | 1812 | client->connect_time = quagga_time(NULL); |
7076bb2f FL |
1813 | /* Initialize flags */ |
1814 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1815 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
1816 | client->redist[afi][i] = vrf_bitmap_init (); | |
1817 | client->redist_default = vrf_bitmap_init (); | |
1818 | client->ifinfo = vrf_bitmap_init (); | |
1819 | client->ridinfo = vrf_bitmap_init (); | |
04b02fda | 1820 | |
718e3744 | 1821 | /* Add this client to linked list. */ |
b21b19c5 | 1822 | listnode_add (zebrad.client_list, client); |
718e3744 | 1823 | |
1824 | /* Make new read thread. */ | |
1825 | zebra_event (ZEBRA_READ, sock, client); | |
12f6fb97 DS |
1826 | |
1827 | zebra_vrf_update_all (client); | |
718e3744 | 1828 | } |
1829 | ||
1830 | /* Handler of zebra service request. */ | |
b9df2d25 | 1831 | static int |
718e3744 | 1832 | zebra_client_read (struct thread *thread) |
1833 | { | |
1834 | int sock; | |
1835 | struct zserv *client; | |
57a1477b | 1836 | size_t already; |
c1b9800a | 1837 | uint16_t length, command; |
1838 | uint8_t marker, version; | |
7076bb2f | 1839 | vrf_id_t vrf_id; |
d651649e | 1840 | struct zebra_vrf *zvrf; |
718e3744 | 1841 | |
1842 | /* Get thread data. Reset reading thread because I'm running. */ | |
1843 | sock = THREAD_FD (thread); | |
1844 | client = THREAD_ARG (thread); | |
1845 | client->t_read = NULL; | |
1846 | ||
719e9741 | 1847 | if (client->t_suicide) |
718e3744 | 1848 | { |
719e9741 | 1849 | zebra_client_close(client); |
718e3744 | 1850 | return -1; |
1851 | } | |
719e9741 | 1852 | |
1853 | /* Read length and command (if we don't have it already). */ | |
57a1477b | 1854 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) |
719e9741 | 1855 | { |
57a1477b | 1856 | ssize_t nbyte; |
719e9741 | 1857 | if (((nbyte = stream_read_try (client->ibuf, sock, |
57a1477b | 1858 | ZEBRA_HEADER_SIZE-already)) == 0) || |
719e9741 | 1859 | (nbyte == -1)) |
1860 | { | |
1861 | if (IS_ZEBRA_DEBUG_EVENT) | |
1862 | zlog_debug ("connection closed socket [%d]", sock); | |
1863 | zebra_client_close (client); | |
1864 | return -1; | |
1865 | } | |
57a1477b | 1866 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE-already)) |
719e9741 | 1867 | { |
1868 | /* Try again later. */ | |
1869 | zebra_event (ZEBRA_READ, sock, client); | |
1870 | return 0; | |
1871 | } | |
57a1477b | 1872 | already = ZEBRA_HEADER_SIZE; |
719e9741 | 1873 | } |
1874 | ||
1875 | /* Reset to read from the beginning of the incoming packet. */ | |
1876 | stream_set_getp(client->ibuf, 0); | |
1877 | ||
c1b9800a | 1878 | /* Fetch header values */ |
718e3744 | 1879 | length = stream_getw (client->ibuf); |
c1b9800a | 1880 | marker = stream_getc (client->ibuf); |
1881 | version = stream_getc (client->ibuf); | |
7076bb2f | 1882 | vrf_id = stream_getw (client->ibuf); |
c1b9800a | 1883 | command = stream_getw (client->ibuf); |
718e3744 | 1884 | |
c1b9800a | 1885 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) |
1886 | { | |
1887 | zlog_err("%s: socket %d version mismatch, marker %d, version %d", | |
1888 | __func__, sock, marker, version); | |
1889 | zebra_client_close (client); | |
1890 | return -1; | |
1891 | } | |
719e9741 | 1892 | if (length < ZEBRA_HEADER_SIZE) |
718e3744 | 1893 | { |
57a1477b | 1894 | zlog_warn("%s: socket %d message length %u is less than header size %d", |
1895 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
1896 | zebra_client_close (client); | |
1897 | return -1; | |
1898 | } | |
1899 | if (length > STREAM_SIZE(client->ibuf)) | |
1900 | { | |
1901 | zlog_warn("%s: socket %d message length %u exceeds buffer size %lu", | |
1902 | __func__, sock, length, (u_long)STREAM_SIZE(client->ibuf)); | |
718e3744 | 1903 | zebra_client_close (client); |
1904 | return -1; | |
1905 | } | |
1906 | ||
718e3744 | 1907 | /* Read rest of data. */ |
57a1477b | 1908 | if (already < length) |
718e3744 | 1909 | { |
57a1477b | 1910 | ssize_t nbyte; |
1911 | if (((nbyte = stream_read_try (client->ibuf, sock, | |
1912 | length-already)) == 0) || | |
1913 | (nbyte == -1)) | |
718e3744 | 1914 | { |
1915 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1916 | zlog_debug ("connection closed [%d] when reading zebra data", sock); |
718e3744 | 1917 | zebra_client_close (client); |
1918 | return -1; | |
1919 | } | |
57a1477b | 1920 | if (nbyte != (ssize_t)(length-already)) |
719e9741 | 1921 | { |
1922 | /* Try again later. */ | |
1923 | zebra_event (ZEBRA_READ, sock, client); | |
1924 | return 0; | |
1925 | } | |
718e3744 | 1926 | } |
1927 | ||
719e9741 | 1928 | length -= ZEBRA_HEADER_SIZE; |
1929 | ||
718e3744 | 1930 | /* Debug packet information. */ |
1931 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1932 | zlog_debug ("zebra message comes from socket [%d]", sock); |
718e3744 | 1933 | |
1934 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
7076bb2f FL |
1935 | zlog_debug ("zebra message received [%s] %d in VRF %u", |
1936 | zserv_command_string (command), length, vrf_id); | |
718e3744 | 1937 | |
04b02fda DS |
1938 | client->last_read_time = quagga_time(NULL); |
1939 | client->last_read_cmd = command; | |
1940 | ||
d651649e DS |
1941 | zvrf = zebra_vrf_lookup (vrf_id); |
1942 | if (!zvrf) | |
1943 | { | |
1944 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
1945 | zlog_debug ("zebra received unknown VRF[%u]", vrf_id); | |
1946 | goto zclient_read_out; | |
1947 | } | |
1948 | ||
718e3744 | 1949 | switch (command) |
1950 | { | |
18a6dce6 | 1951 | case ZEBRA_ROUTER_ID_ADD: |
d651649e | 1952 | zread_router_id_add (client, length, zvrf); |
18a6dce6 | 1953 | break; |
1954 | case ZEBRA_ROUTER_ID_DELETE: | |
d651649e | 1955 | zread_router_id_delete (client, length, zvrf); |
18a6dce6 | 1956 | break; |
718e3744 | 1957 | case ZEBRA_INTERFACE_ADD: |
d651649e | 1958 | zread_interface_add (client, length, zvrf); |
718e3744 | 1959 | break; |
1960 | case ZEBRA_INTERFACE_DELETE: | |
d651649e | 1961 | zread_interface_delete (client, length, zvrf); |
718e3744 | 1962 | break; |
1963 | case ZEBRA_IPV4_ROUTE_ADD: | |
d651649e | 1964 | zread_ipv4_add (client, length, zvrf); |
718e3744 | 1965 | break; |
1966 | case ZEBRA_IPV4_ROUTE_DELETE: | |
d651649e | 1967 | zread_ipv4_delete (client, length, zvrf); |
718e3744 | 1968 | break; |
8a92a8a0 | 1969 | case ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD: |
d651649e | 1970 | zread_ipv4_route_ipv6_nexthop_add (client, length, zvrf); |
8a92a8a0 | 1971 | break; |
718e3744 | 1972 | case ZEBRA_IPV6_ROUTE_ADD: |
d651649e | 1973 | zread_ipv6_add (client, length, zvrf); |
718e3744 | 1974 | break; |
1975 | case ZEBRA_IPV6_ROUTE_DELETE: | |
d651649e | 1976 | zread_ipv6_delete (client, length, zvrf); |
718e3744 | 1977 | break; |
718e3744 | 1978 | case ZEBRA_REDISTRIBUTE_ADD: |
d651649e | 1979 | zebra_redistribute_add (command, client, length, zvrf); |
718e3744 | 1980 | break; |
1981 | case ZEBRA_REDISTRIBUTE_DELETE: | |
d651649e | 1982 | zebra_redistribute_delete (command, client, length, zvrf); |
718e3744 | 1983 | break; |
1984 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
d651649e | 1985 | zebra_redistribute_default_add (command, client, length, zvrf); |
718e3744 | 1986 | break; |
1987 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
d651649e | 1988 | zebra_redistribute_default_delete (command, client, length, zvrf); |
718e3744 | 1989 | break; |
1990 | case ZEBRA_IPV4_NEXTHOP_LOOKUP: | |
d651649e | 1991 | zread_ipv4_nexthop_lookup (client, length, zvrf); |
718e3744 | 1992 | break; |
718e3744 | 1993 | case ZEBRA_IPV6_NEXTHOP_LOOKUP: |
d651649e | 1994 | zread_ipv6_nexthop_lookup (client, length, zvrf); |
718e3744 | 1995 | break; |
718e3744 | 1996 | case ZEBRA_IPV4_IMPORT_LOOKUP: |
d651649e | 1997 | zread_ipv4_import_lookup (client, length, zvrf); |
718e3744 | 1998 | break; |
2ea1ab1c VT |
1999 | case ZEBRA_HELLO: |
2000 | zread_hello (client); | |
2001 | break; | |
fb018d25 | 2002 | case ZEBRA_NEXTHOP_REGISTER: |
d651649e | 2003 | zserv_rnh_register(client, sock, length, RNH_NEXTHOP_TYPE, zvrf); |
fb018d25 DS |
2004 | break; |
2005 | case ZEBRA_NEXTHOP_UNREGISTER: | |
d651649e | 2006 | zserv_rnh_unregister(client, sock, length, RNH_NEXTHOP_TYPE, zvrf); |
078430f6 DS |
2007 | break; |
2008 | case ZEBRA_IMPORT_ROUTE_REGISTER: | |
d651649e | 2009 | zserv_rnh_register(client, sock, length, RNH_IMPORT_CHECK_TYPE, zvrf); |
078430f6 DS |
2010 | break; |
2011 | case ZEBRA_IMPORT_ROUTE_UNREGISTER: | |
d651649e | 2012 | zserv_rnh_unregister(client, sock, length, RNH_IMPORT_CHECK_TYPE, zvrf); |
fb018d25 | 2013 | break; |
c43ed2e4 DS |
2014 | case ZEBRA_BFD_DEST_UPDATE: |
2015 | case ZEBRA_BFD_DEST_REGISTER: | |
d651649e | 2016 | zebra_ptm_bfd_dst_register(client, sock, length, command, zvrf); |
c43ed2e4 DS |
2017 | break; |
2018 | case ZEBRA_BFD_DEST_DEREGISTER: | |
d651649e | 2019 | zebra_ptm_bfd_dst_deregister(client, sock, length, zvrf); |
c43ed2e4 | 2020 | break; |
7076bb2f | 2021 | case ZEBRA_VRF_UNREGISTER: |
d651649e | 2022 | zread_vrf_unregister (client, length, zvrf); |
7076bb2f | 2023 | break; |
055c4dfc | 2024 | case ZEBRA_BFD_CLIENT_REGISTER: |
2025 | zebra_ptm_bfd_client_register(client, sock, length); | |
2026 | break; | |
4a04e5f7 | 2027 | case ZEBRA_INTERFACE_ENABLE_RADV: |
2028 | zebra_interface_radv_set (client, sock, length, zvrf, 1); | |
2029 | break; | |
2030 | case ZEBRA_INTERFACE_DISABLE_RADV: | |
2031 | zebra_interface_radv_set (client, sock, length, zvrf, 0); | |
2032 | break; | |
718e3744 | 2033 | default: |
2034 | zlog_info ("Zebra received unknown command %d", command); | |
2035 | break; | |
2036 | } | |
2037 | ||
719e9741 | 2038 | if (client->t_suicide) |
2039 | { | |
2040 | /* No need to wait for thread callback, just kill immediately. */ | |
2041 | zebra_client_close(client); | |
2042 | return -1; | |
2043 | } | |
2044 | ||
d651649e | 2045 | zclient_read_out: |
718e3744 | 2046 | stream_reset (client->ibuf); |
2047 | zebra_event (ZEBRA_READ, sock, client); | |
718e3744 | 2048 | return 0; |
2049 | } | |
2050 | ||
718e3744 | 2051 | |
2052 | /* Accept code of zebra server socket. */ | |
b9df2d25 | 2053 | static int |
718e3744 | 2054 | zebra_accept (struct thread *thread) |
2055 | { | |
2056 | int accept_sock; | |
2057 | int client_sock; | |
2058 | struct sockaddr_in client; | |
2059 | socklen_t len; | |
2060 | ||
2061 | accept_sock = THREAD_FD (thread); | |
2062 | ||
719e9741 | 2063 | /* Reregister myself. */ |
2064 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
2065 | ||
718e3744 | 2066 | len = sizeof (struct sockaddr_in); |
2067 | client_sock = accept (accept_sock, (struct sockaddr *) &client, &len); | |
2068 | ||
2069 | if (client_sock < 0) | |
2070 | { | |
6099b3b5 | 2071 | zlog_warn ("Can't accept zebra socket: %s", safe_strerror (errno)); |
718e3744 | 2072 | return -1; |
2073 | } | |
2074 | ||
ccf3557b | 2075 | /* Make client socket non-blocking. */ |
719e9741 | 2076 | set_nonblocking(client_sock); |
865b852c | 2077 | |
718e3744 | 2078 | /* Create new zebra client. */ |
2079 | zebra_client_create (client_sock); | |
2080 | ||
718e3744 | 2081 | return 0; |
2082 | } | |
2083 | ||
b9df2d25 | 2084 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 2085 | /* Make zebra's server socket. */ |
b9df2d25 | 2086 | static void |
718e3744 | 2087 | zebra_serv () |
2088 | { | |
2089 | int ret; | |
2090 | int accept_sock; | |
2091 | struct sockaddr_in addr; | |
2092 | ||
2093 | accept_sock = socket (AF_INET, SOCK_STREAM, 0); | |
2094 | ||
2095 | if (accept_sock < 0) | |
2096 | { | |
3d1dc857 | 2097 | zlog_warn ("Can't create zserv stream socket: %s", |
2098 | safe_strerror (errno)); | |
718e3744 | 2099 | zlog_warn ("zebra can't provice full functionality due to above error"); |
2100 | return; | |
2101 | } | |
2102 | ||
2103 | memset (&addr, 0, sizeof (struct sockaddr_in)); | |
2104 | addr.sin_family = AF_INET; | |
2105 | addr.sin_port = htons (ZEBRA_PORT); | |
6f0e3f6e | 2106 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 2107 | addr.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 2108 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 2109 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
2110 | ||
2111 | sockopt_reuseaddr (accept_sock); | |
2112 | sockopt_reuseport (accept_sock); | |
2113 | ||
edd7c245 | 2114 | if ( zserv_privs.change(ZPRIVS_RAISE) ) |
2115 | zlog (NULL, LOG_ERR, "Can't raise privileges"); | |
2116 | ||
718e3744 | 2117 | ret = bind (accept_sock, (struct sockaddr *)&addr, |
2118 | sizeof (struct sockaddr_in)); | |
2119 | if (ret < 0) | |
2120 | { | |
3d1dc857 | 2121 | zlog_warn ("Can't bind to stream socket: %s", |
2122 | safe_strerror (errno)); | |
718e3744 | 2123 | zlog_warn ("zebra can't provice full functionality due to above error"); |
2124 | close (accept_sock); /* Avoid sd leak. */ | |
2125 | return; | |
2126 | } | |
edd7c245 | 2127 | |
2128 | if ( zserv_privs.change(ZPRIVS_LOWER) ) | |
2129 | zlog (NULL, LOG_ERR, "Can't lower privileges"); | |
718e3744 | 2130 | |
2131 | ret = listen (accept_sock, 1); | |
2132 | if (ret < 0) | |
2133 | { | |
3d1dc857 | 2134 | zlog_warn ("Can't listen to stream socket: %s", |
2135 | safe_strerror (errno)); | |
718e3744 | 2136 | zlog_warn ("zebra can't provice full functionality due to above error"); |
2137 | close (accept_sock); /* Avoid sd leak. */ | |
2138 | return; | |
2139 | } | |
2140 | ||
2141 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
2142 | } | |
b9df2d25 | 2143 | #endif /* HAVE_TCP_ZEBRA */ |
718e3744 | 2144 | |
2145 | /* For sockaddr_un. */ | |
2146 | #include <sys/un.h> | |
2147 | ||
2148 | /* zebra server UNIX domain socket. */ | |
b9df2d25 | 2149 | static void |
fce954f8 | 2150 | zebra_serv_un (const char *path) |
718e3744 | 2151 | { |
2152 | int ret; | |
2153 | int sock, len; | |
2154 | struct sockaddr_un serv; | |
2155 | mode_t old_mask; | |
2156 | ||
2157 | /* First of all, unlink existing socket */ | |
2158 | unlink (path); | |
2159 | ||
2160 | /* Set umask */ | |
2161 | old_mask = umask (0077); | |
2162 | ||
2163 | /* Make UNIX domain socket. */ | |
2164 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
2165 | if (sock < 0) | |
2166 | { | |
3d1dc857 | 2167 | zlog_warn ("Can't create zserv unix socket: %s", |
2168 | safe_strerror (errno)); | |
2169 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2170 | return; |
2171 | } | |
2172 | ||
2173 | /* Make server socket. */ | |
2174 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
2175 | serv.sun_family = AF_UNIX; | |
2176 | strncpy (serv.sun_path, path, strlen (path)); | |
6f0e3f6e | 2177 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 2178 | len = serv.sun_len = SUN_LEN(&serv); |
2179 | #else | |
2180 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 2181 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2182 | |
2183 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
2184 | if (ret < 0) | |
2185 | { | |
3d1dc857 | 2186 | zlog_warn ("Can't bind to unix socket %s: %s", |
2187 | path, safe_strerror (errno)); | |
2188 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2189 | close (sock); |
2190 | return; | |
2191 | } | |
2192 | ||
2193 | ret = listen (sock, 5); | |
2194 | if (ret < 0) | |
2195 | { | |
3d1dc857 | 2196 | zlog_warn ("Can't listen to unix socket %s: %s", |
2197 | path, safe_strerror (errno)); | |
2198 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2199 | close (sock); |
2200 | return; | |
2201 | } | |
2202 | ||
2203 | umask (old_mask); | |
2204 | ||
2205 | zebra_event (ZEBRA_SERV, sock, NULL); | |
2206 | } | |
6b0655a2 | 2207 | |
718e3744 | 2208 | |
b9df2d25 | 2209 | static void |
718e3744 | 2210 | zebra_event (enum event event, int sock, struct zserv *client) |
2211 | { | |
2212 | switch (event) | |
2213 | { | |
2214 | case ZEBRA_SERV: | |
b21b19c5 | 2215 | thread_add_read (zebrad.master, zebra_accept, client, sock); |
718e3744 | 2216 | break; |
2217 | case ZEBRA_READ: | |
2218 | client->t_read = | |
b21b19c5 | 2219 | thread_add_read (zebrad.master, zebra_client_read, client, sock); |
718e3744 | 2220 | break; |
2221 | case ZEBRA_WRITE: | |
2222 | /**/ | |
2223 | break; | |
2224 | } | |
2225 | } | |
6b0655a2 | 2226 | |
04b02fda DS |
2227 | #define ZEBRA_TIME_BUF 32 |
2228 | static char * | |
2229 | zserv_time_buf(time_t *time1, char *buf, int buflen) | |
2230 | { | |
2231 | struct tm *tm; | |
2232 | time_t now; | |
2233 | ||
2234 | assert (buf != NULL); | |
2235 | assert (buflen >= ZEBRA_TIME_BUF); | |
2236 | assert (time1 != NULL); | |
2237 | ||
2238 | if (!*time1) | |
2239 | { | |
2240 | snprintf(buf, buflen, "never "); | |
2241 | return (buf); | |
2242 | } | |
2243 | ||
2244 | now = quagga_time(NULL); | |
2245 | now -= *time1; | |
2246 | tm = gmtime(&now); | |
2247 | ||
2248 | /* Making formatted timer strings. */ | |
2249 | #define ONE_DAY_SECOND 60*60*24 | |
2250 | #define ONE_WEEK_SECOND 60*60*24*7 | |
2251 | ||
2252 | if (now < ONE_DAY_SECOND) | |
2253 | snprintf (buf, buflen, "%02d:%02d:%02d", | |
2254 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
2255 | else if (now < ONE_WEEK_SECOND) | |
2256 | snprintf (buf, buflen, "%dd%02dh%02dm", | |
2257 | tm->tm_yday, tm->tm_hour, tm->tm_min); | |
2258 | else | |
2259 | snprintf (buf, buflen, "%02dw%dd%02dh", | |
2260 | tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); | |
2261 | return buf; | |
2262 | } | |
2263 | ||
2264 | static void | |
2265 | zebra_show_client_detail (struct vty *vty, struct zserv *client) | |
2266 | { | |
2267 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2268 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
2269 | ||
7c8ff89e DS |
2270 | vty_out (vty, "Client: %s", zebra_route_string(client->proto)); |
2271 | if (client->instance) | |
2272 | vty_out (vty, " Instance: %d", client->instance); | |
2273 | vty_out (vty, "%s", VTY_NEWLINE); | |
2274 | ||
04b02fda DS |
2275 | vty_out (vty, "------------------------ %s", VTY_NEWLINE); |
2276 | vty_out (vty, "FD: %d %s", client->sock, VTY_NEWLINE); | |
2277 | vty_out (vty, "Route Table ID: %d %s", client->rtm_table, VTY_NEWLINE); | |
2278 | ||
2279 | vty_out (vty, "Connect Time: %s %s", | |
2280 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2281 | VTY_NEWLINE); | |
2282 | if (client->nh_reg_time) | |
2283 | { | |
2284 | vty_out (vty, "Nexthop Registry Time: %s %s", | |
2285 | zserv_time_buf(&client->nh_reg_time, nhbuf, ZEBRA_TIME_BUF), | |
2286 | VTY_NEWLINE); | |
2287 | if (client->nh_last_upd_time) | |
2288 | vty_out (vty, "Nexthop Last Update Time: %s %s", | |
2289 | zserv_time_buf(&client->nh_last_upd_time, mbuf, ZEBRA_TIME_BUF), | |
2290 | VTY_NEWLINE); | |
2291 | else | |
2292 | vty_out (vty, "No Nexthop Update sent%s", VTY_NEWLINE); | |
2293 | } | |
2294 | else | |
2295 | vty_out (vty, "Not registered for Nexthop Updates%s", VTY_NEWLINE); | |
2296 | ||
2297 | vty_out (vty, "Last Msg Rx Time: %s %s", | |
2298 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2299 | VTY_NEWLINE); | |
2300 | vty_out (vty, "Last Msg Tx Time: %s %s", | |
2301 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2302 | VTY_NEWLINE); | |
2303 | if (client->last_read_time) | |
2304 | vty_out (vty, "Last Rcvd Cmd: %s %s", | |
2305 | zserv_command_string(client->last_read_cmd), VTY_NEWLINE); | |
2306 | if (client->last_write_time) | |
2307 | vty_out (vty, "Last Sent Cmd: %s %s", | |
2308 | zserv_command_string(client->last_write_cmd), VTY_NEWLINE); | |
2309 | vty_out (vty, "%s", VTY_NEWLINE); | |
2310 | ||
2311 | vty_out (vty, "Type Add Update Del %s", VTY_NEWLINE); | |
2312 | vty_out (vty, "================================================== %s", VTY_NEWLINE); | |
2313 | vty_out (vty, "IPv4 %-12d%-12d%-12d%s", client->v4_route_add_cnt, | |
2314 | client->v4_route_upd8_cnt, client->v4_route_del_cnt, VTY_NEWLINE); | |
2315 | vty_out (vty, "IPv6 %-12d%-12d%-12d%s", client->v6_route_add_cnt, | |
2316 | client->v6_route_upd8_cnt, client->v6_route_del_cnt, VTY_NEWLINE); | |
2317 | vty_out (vty, "Redist:v4 %-12d%-12d%-12d%s", client->redist_v4_add_cnt, 0, | |
2318 | client->redist_v4_del_cnt, VTY_NEWLINE); | |
2319 | vty_out (vty, "Redist:v6 %-12d%-12d%-12d%s", client->redist_v6_add_cnt, 0, | |
2320 | client->redist_v6_del_cnt, VTY_NEWLINE); | |
2321 | vty_out (vty, "Connected %-12d%-12d%-12d%s", client->ifadd_cnt, 0, | |
2322 | client->ifdel_cnt, VTY_NEWLINE); | |
c43ed2e4 DS |
2323 | vty_out (vty, "BFD peer %-12d%-12d%-12d%s", client->bfd_peer_add_cnt, |
2324 | client->bfd_peer_upd8_cnt, client->bfd_peer_del_cnt, VTY_NEWLINE); | |
04b02fda DS |
2325 | vty_out (vty, "Interface Up Notifications: %d%s", client->ifup_cnt, |
2326 | VTY_NEWLINE); | |
2327 | vty_out (vty, "Interface Down Notifications: %d%s", client->ifdown_cnt, | |
2328 | VTY_NEWLINE); | |
2329 | ||
2330 | vty_out (vty, "%s", VTY_NEWLINE); | |
2331 | return; | |
2332 | } | |
2333 | ||
2334 | static void | |
2335 | zebra_show_client_brief (struct vty *vty, struct zserv *client) | |
2336 | { | |
2337 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2338 | char wbuf[ZEBRA_TIME_BUF]; | |
2339 | ||
2340 | vty_out (vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d%s", | |
2341 | zebra_route_string(client->proto), | |
2342 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2343 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2344 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2345 | client->v4_route_add_cnt+client->v4_route_upd8_cnt, | |
2346 | client->v4_route_del_cnt, | |
2347 | client->v6_route_add_cnt+client->v6_route_upd8_cnt, | |
2348 | client->v6_route_del_cnt, VTY_NEWLINE); | |
2349 | ||
2350 | } | |
2351 | ||
2352 | ||
718e3744 | 2353 | /* Display default rtm_table for all clients. */ |
2354 | DEFUN (show_table, | |
2355 | show_table_cmd, | |
2356 | "show table", | |
2357 | SHOW_STR | |
2358 | "default routing table to use for all clients\n") | |
2359 | { | |
b21b19c5 | 2360 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, |
718e3744 | 2361 | VTY_NEWLINE); |
2362 | return CMD_SUCCESS; | |
2363 | } | |
2364 | ||
2365 | DEFUN (config_table, | |
2366 | config_table_cmd, | |
2367 | "table TABLENO", | |
2368 | "Configure target kernel routing table\n" | |
2369 | "TABLE integer\n") | |
2370 | { | |
b21b19c5 | 2371 | zebrad.rtm_table_default = strtol (argv[0], (char**)0, 10); |
718e3744 | 2372 | return CMD_SUCCESS; |
2373 | } | |
2374 | ||
813d4307 DW |
2375 | DEFUN (no_config_table, |
2376 | no_config_table_cmd, | |
2377 | "no table TABLENO", | |
2378 | NO_STR | |
2379 | "Configure target kernel routing table\n" | |
2380 | "TABLE integer\n") | |
2381 | { | |
2382 | zebrad.rtm_table_default = 0; | |
2383 | return CMD_SUCCESS; | |
2384 | } | |
2385 | ||
647e4f1f | 2386 | DEFUN (ip_forwarding, |
2387 | ip_forwarding_cmd, | |
2388 | "ip forwarding", | |
2389 | IP_STR | |
2390 | "Turn on IP forwarding") | |
2391 | { | |
2392 | int ret; | |
2393 | ||
2394 | ret = ipforward (); | |
b71f00f2 | 2395 | if (ret == 0) |
2396 | ret = ipforward_on (); | |
647e4f1f | 2397 | |
647e4f1f | 2398 | if (ret == 0) |
2399 | { | |
2400 | vty_out (vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
2401 | return CMD_WARNING; | |
2402 | } | |
2403 | ||
2404 | return CMD_SUCCESS; | |
2405 | } | |
2406 | ||
718e3744 | 2407 | DEFUN (no_ip_forwarding, |
2408 | no_ip_forwarding_cmd, | |
2409 | "no ip forwarding", | |
2410 | NO_STR | |
2411 | IP_STR | |
2412 | "Turn off IP forwarding") | |
2413 | { | |
2414 | int ret; | |
2415 | ||
2416 | ret = ipforward (); | |
b71f00f2 | 2417 | if (ret != 0) |
2418 | ret = ipforward_off (); | |
718e3744 | 2419 | |
718e3744 | 2420 | if (ret != 0) |
2421 | { | |
2422 | vty_out (vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
2423 | return CMD_WARNING; | |
2424 | } | |
2425 | ||
2426 | return CMD_SUCCESS; | |
2427 | } | |
2428 | ||
2429 | /* This command is for debugging purpose. */ | |
2430 | DEFUN (show_zebra_client, | |
2431 | show_zebra_client_cmd, | |
2432 | "show zebra client", | |
2433 | SHOW_STR | |
2434 | "Zebra information" | |
2435 | "Client information") | |
2436 | { | |
52dc7ee6 | 2437 | struct listnode *node; |
718e3744 | 2438 | struct zserv *client; |
2439 | ||
1eb8ef25 | 2440 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) |
04b02fda DS |
2441 | zebra_show_client_detail(vty, client); |
2442 | ||
2443 | return CMD_SUCCESS; | |
2444 | } | |
2445 | ||
2446 | /* This command is for debugging purpose. */ | |
2447 | DEFUN (show_zebra_client_summary, | |
2448 | show_zebra_client_summary_cmd, | |
2449 | "show zebra client summary", | |
2450 | SHOW_STR | |
2451 | "Zebra information brief" | |
2452 | "Client information brief") | |
2453 | { | |
2454 | struct listnode *node; | |
2455 | struct zserv *client; | |
2456 | ||
2457 | vty_out (vty, "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes %s", | |
2458 | VTY_NEWLINE); | |
2459 | vty_out (vty,"--------------------------------------------------------------------------------%s", | |
2460 | VTY_NEWLINE); | |
2461 | ||
2462 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) | |
2463 | zebra_show_client_brief(vty, client); | |
fb018d25 | 2464 | |
04b02fda | 2465 | vty_out (vty, "Routes column shows (added+updated)/deleted%s", VTY_NEWLINE); |
718e3744 | 2466 | return CMD_SUCCESS; |
2467 | } | |
2468 | ||
2469 | /* Table configuration write function. */ | |
b9df2d25 | 2470 | static int |
718e3744 | 2471 | config_write_table (struct vty *vty) |
2472 | { | |
b21b19c5 | 2473 | if (zebrad.rtm_table_default) |
2474 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, | |
718e3744 | 2475 | VTY_NEWLINE); |
2476 | return 0; | |
2477 | } | |
2478 | ||
2479 | /* table node for routing tables. */ | |
7fc626de | 2480 | static struct cmd_node table_node = |
718e3744 | 2481 | { |
2482 | TABLE_NODE, | |
2483 | "", /* This node has no interface. */ | |
2484 | 1 | |
2485 | }; | |
6b0655a2 | 2486 | |
718e3744 | 2487 | /* Only display ip forwarding is enabled or not. */ |
2488 | DEFUN (show_ip_forwarding, | |
2489 | show_ip_forwarding_cmd, | |
2490 | "show ip forwarding", | |
2491 | SHOW_STR | |
2492 | IP_STR | |
2493 | "IP forwarding status\n") | |
2494 | { | |
2495 | int ret; | |
2496 | ||
2497 | ret = ipforward (); | |
2498 | ||
2499 | if (ret == 0) | |
2500 | vty_out (vty, "IP forwarding is off%s", VTY_NEWLINE); | |
2501 | else | |
2502 | vty_out (vty, "IP forwarding is on%s", VTY_NEWLINE); | |
2503 | return CMD_SUCCESS; | |
2504 | } | |
2505 | ||
2506 | #ifdef HAVE_IPV6 | |
2507 | /* Only display ipv6 forwarding is enabled or not. */ | |
2508 | DEFUN (show_ipv6_forwarding, | |
2509 | show_ipv6_forwarding_cmd, | |
2510 | "show ipv6 forwarding", | |
2511 | SHOW_STR | |
2512 | "IPv6 information\n" | |
2513 | "Forwarding status\n") | |
2514 | { | |
2515 | int ret; | |
2516 | ||
2517 | ret = ipforward_ipv6 (); | |
2518 | ||
2519 | switch (ret) | |
2520 | { | |
2521 | case -1: | |
2522 | vty_out (vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
2523 | break; | |
2524 | case 0: | |
2525 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2526 | break; | |
2527 | case 1: | |
2528 | vty_out (vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
2529 | break; | |
2530 | default: | |
2531 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2532 | break; | |
2533 | } | |
2534 | return CMD_SUCCESS; | |
2535 | } | |
2536 | ||
55906724 | 2537 | DEFUN (ipv6_forwarding, |
2538 | ipv6_forwarding_cmd, | |
2539 | "ipv6 forwarding", | |
2540 | IPV6_STR | |
2541 | "Turn on IPv6 forwarding") | |
2542 | { | |
2543 | int ret; | |
2544 | ||
41d3fc96 | 2545 | ret = ipforward_ipv6 (); |
b71f00f2 | 2546 | if (ret == 0) |
2547 | ret = ipforward_ipv6_on (); | |
41d3fc96 | 2548 | |
41d3fc96 | 2549 | if (ret == 0) |
55906724 | 2550 | { |
2551 | vty_out (vty, "Can't turn on IPv6 forwarding%s", VTY_NEWLINE); | |
2552 | return CMD_WARNING; | |
2553 | } | |
2554 | ||
2555 | return CMD_SUCCESS; | |
2556 | } | |
2557 | ||
718e3744 | 2558 | DEFUN (no_ipv6_forwarding, |
2559 | no_ipv6_forwarding_cmd, | |
2560 | "no ipv6 forwarding", | |
2561 | NO_STR | |
55906724 | 2562 | IPV6_STR |
2563 | "Turn off IPv6 forwarding") | |
718e3744 | 2564 | { |
2565 | int ret; | |
2566 | ||
41d3fc96 | 2567 | ret = ipforward_ipv6 (); |
b71f00f2 | 2568 | if (ret != 0) |
2569 | ret = ipforward_ipv6_off (); | |
41d3fc96 | 2570 | |
718e3744 | 2571 | if (ret != 0) |
2572 | { | |
2573 | vty_out (vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
2574 | return CMD_WARNING; | |
2575 | } | |
2576 | ||
2577 | return CMD_SUCCESS; | |
2578 | } | |
2579 | ||
2580 | #endif /* HAVE_IPV6 */ | |
2581 | ||
2582 | /* IPForwarding configuration write function. */ | |
719e9741 | 2583 | static int |
718e3744 | 2584 | config_write_forwarding (struct vty *vty) |
2585 | { | |
18a6dce6 | 2586 | /* FIXME: Find better place for that. */ |
2587 | router_id_write (vty); | |
2588 | ||
3e0b3a56 | 2589 | if (ipforward ()) |
2590 | vty_out (vty, "ip forwarding%s", VTY_NEWLINE); | |
718e3744 | 2591 | #ifdef HAVE_IPV6 |
3e0b3a56 | 2592 | if (ipforward_ipv6 ()) |
2593 | vty_out (vty, "ipv6 forwarding%s", VTY_NEWLINE); | |
718e3744 | 2594 | #endif /* HAVE_IPV6 */ |
2595 | vty_out (vty, "!%s", VTY_NEWLINE); | |
2596 | return 0; | |
2597 | } | |
2598 | ||
2599 | /* table node for routing tables. */ | |
7fc626de | 2600 | static struct cmd_node forwarding_node = |
718e3744 | 2601 | { |
2602 | FORWARDING_NODE, | |
2603 | "", /* This node has no interface. */ | |
2604 | 1 | |
2605 | }; | |
2606 | ||
6b0655a2 | 2607 | |
718e3744 | 2608 | /* Initialisation of zebra and installation of commands. */ |
2609 | void | |
a1ac18c4 | 2610 | zebra_init (void) |
718e3744 | 2611 | { |
2612 | /* Client list init. */ | |
b21b19c5 | 2613 | zebrad.client_list = list_new (); |
718e3744 | 2614 | |
718e3744 | 2615 | /* Install configuration write function. */ |
2616 | install_node (&table_node, config_write_table); | |
2617 | install_node (&forwarding_node, config_write_forwarding); | |
2618 | ||
2619 | install_element (VIEW_NODE, &show_ip_forwarding_cmd); | |
2620 | install_element (ENABLE_NODE, &show_ip_forwarding_cmd); | |
647e4f1f | 2621 | install_element (CONFIG_NODE, &ip_forwarding_cmd); |
718e3744 | 2622 | install_element (CONFIG_NODE, &no_ip_forwarding_cmd); |
2623 | install_element (ENABLE_NODE, &show_zebra_client_cmd); | |
04b02fda | 2624 | install_element (ENABLE_NODE, &show_zebra_client_summary_cmd); |
718e3744 | 2625 | |
2626 | #ifdef HAVE_NETLINK | |
2627 | install_element (VIEW_NODE, &show_table_cmd); | |
2628 | install_element (ENABLE_NODE, &show_table_cmd); | |
2629 | install_element (CONFIG_NODE, &config_table_cmd); | |
813d4307 | 2630 | install_element (CONFIG_NODE, &no_config_table_cmd); |
718e3744 | 2631 | #endif /* HAVE_NETLINK */ |
2632 | ||
2633 | #ifdef HAVE_IPV6 | |
2634 | install_element (VIEW_NODE, &show_ipv6_forwarding_cmd); | |
2635 | install_element (ENABLE_NODE, &show_ipv6_forwarding_cmd); | |
55906724 | 2636 | install_element (CONFIG_NODE, &ipv6_forwarding_cmd); |
718e3744 | 2637 | install_element (CONFIG_NODE, &no_ipv6_forwarding_cmd); |
2638 | #endif /* HAVE_IPV6 */ | |
7514fb77 PJ |
2639 | |
2640 | /* Route-map */ | |
2641 | zebra_route_map_init (); | |
718e3744 | 2642 | } |
97be79f9 DO |
2643 | |
2644 | /* Make zebra server socket, wiping any existing one (see bug #403). */ | |
2645 | void | |
b5114685 | 2646 | zebra_zserv_socket_init (char *path) |
97be79f9 DO |
2647 | { |
2648 | #ifdef HAVE_TCP_ZEBRA | |
2649 | zebra_serv (); | |
2650 | #else | |
b5114685 | 2651 | zebra_serv_un (path ? path : ZEBRA_SERV_PATH); |
97be79f9 DO |
2652 | #endif /* HAVE_TCP_ZEBRA */ |
2653 | } |