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718e3744 | 1 | /* Zebra daemon server routine. |
2 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | * Boston, MA 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "prefix.h" | |
25 | #include "command.h" | |
26 | #include "if.h" | |
27 | #include "thread.h" | |
28 | #include "stream.h" | |
29 | #include "memory.h" | |
30 | #include "table.h" | |
31 | #include "rib.h" | |
32 | #include "network.h" | |
33 | #include "sockunion.h" | |
34 | #include "log.h" | |
35 | #include "zclient.h" | |
edd7c245 | 36 | #include "privs.h" |
719e9741 | 37 | #include "network.h" |
38 | #include "buffer.h" | |
fb018d25 | 39 | #include "nexthop.h" |
718e3744 | 40 | |
41 | #include "zebra/zserv.h" | |
18a6dce6 | 42 | #include "zebra/router-id.h" |
718e3744 | 43 | #include "zebra/redistribute.h" |
44 | #include "zebra/debug.h" | |
45 | #include "zebra/ipforward.h" | |
fb018d25 | 46 | #include "zebra/zebra_rnh.h" |
5c610faf | 47 | #include "zebra/rt_netlink.h" |
6b0655a2 | 48 | |
718e3744 | 49 | /* Event list of zebra. */ |
50 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
51 | ||
b21b19c5 | 52 | extern struct zebra_t zebrad; |
718e3744 | 53 | |
b9df2d25 | 54 | static void zebra_event (enum event event, int sock, struct zserv *client); |
ccf3557b | 55 | |
edd7c245 | 56 | extern struct zebra_privs_t zserv_privs; |
6b0655a2 | 57 | |
719e9741 | 58 | static void zebra_client_close (struct zserv *client); |
ccf3557b | 59 | |
719e9741 | 60 | static int |
61 | zserv_delayed_close(struct thread *thread) | |
ccf3557b | 62 | { |
719e9741 | 63 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 64 | |
719e9741 | 65 | client->t_suicide = NULL; |
66 | zebra_client_close(client); | |
ccf3557b | 67 | return 0; |
68 | } | |
69 | ||
719e9741 | 70 | static int |
71 | zserv_flush_data(struct thread *thread) | |
ccf3557b | 72 | { |
719e9741 | 73 | struct zserv *client = THREAD_ARG(thread); |
ccf3557b | 74 | |
719e9741 | 75 | client->t_write = NULL; |
76 | if (client->t_suicide) | |
ccf3557b | 77 | { |
719e9741 | 78 | zebra_client_close(client); |
79 | return -1; | |
ccf3557b | 80 | } |
719e9741 | 81 | switch (buffer_flush_available(client->wb, client->sock)) |
ccf3557b | 82 | { |
719e9741 | 83 | case BUFFER_ERROR: |
84 | zlog_warn("%s: buffer_flush_available failed on zserv client fd %d, " | |
85 | "closing", __func__, client->sock); | |
86 | zebra_client_close(client); | |
87 | break; | |
88 | case BUFFER_PENDING: | |
89 | client->t_write = thread_add_write(zebrad.master, zserv_flush_data, | |
90 | client, client->sock); | |
91 | break; | |
92 | case BUFFER_EMPTY: | |
93 | break; | |
ccf3557b | 94 | } |
04b02fda DS |
95 | |
96 | client->last_write_time = quagga_time(NULL); | |
719e9741 | 97 | return 0; |
98 | } | |
ccf3557b | 99 | |
fb018d25 | 100 | int |
719e9741 | 101 | zebra_server_send_message(struct zserv *client) |
102 | { | |
103 | if (client->t_suicide) | |
104 | return -1; | |
04b02fda DS |
105 | |
106 | stream_set_getp(client->obuf, 0); | |
107 | client->last_write_cmd = stream_getw_from(client->obuf, 4); | |
719e9741 | 108 | switch (buffer_write(client->wb, client->sock, STREAM_DATA(client->obuf), |
109 | stream_get_endp(client->obuf))) | |
110 | { | |
111 | case BUFFER_ERROR: | |
112 | zlog_warn("%s: buffer_write failed to zserv client fd %d, closing", | |
113 | __func__, client->sock); | |
114 | /* Schedule a delayed close since many of the functions that call this | |
115 | one do not check the return code. They do not allow for the | |
116 | possibility that an I/O error may have caused the client to be | |
117 | deleted. */ | |
118 | client->t_suicide = thread_add_event(zebrad.master, zserv_delayed_close, | |
119 | client, 0); | |
120 | return -1; | |
719e9741 | 121 | case BUFFER_EMPTY: |
122 | THREAD_OFF(client->t_write); | |
123 | break; | |
124 | case BUFFER_PENDING: | |
125 | THREAD_WRITE_ON(zebrad.master, client->t_write, | |
126 | zserv_flush_data, client, client->sock); | |
127 | break; | |
128 | } | |
04b02fda DS |
129 | |
130 | client->last_write_time = quagga_time(NULL); | |
ccf3557b | 131 | return 0; |
132 | } | |
133 | ||
fb018d25 | 134 | void |
c1b9800a | 135 | zserv_create_header (struct stream *s, uint16_t cmd) |
136 | { | |
137 | /* length placeholder, caller can update */ | |
138 | stream_putw (s, ZEBRA_HEADER_SIZE); | |
139 | stream_putc (s, ZEBRA_HEADER_MARKER); | |
140 | stream_putc (s, ZSERV_VERSION); | |
141 | stream_putw (s, cmd); | |
142 | } | |
143 | ||
51d4ef83 JB |
144 | static void |
145 | zserv_encode_interface (struct stream *s, struct interface *ifp) | |
146 | { | |
147 | /* Interface information. */ | |
148 | stream_put (s, ifp->name, INTERFACE_NAMSIZ); | |
149 | stream_putl (s, ifp->ifindex); | |
150 | stream_putc (s, ifp->status); | |
151 | stream_putq (s, ifp->flags); | |
244c1cdc DS |
152 | stream_putc (s, ifp->ptm_enable); |
153 | stream_putc (s, ifp->ptm_status); | |
51d4ef83 JB |
154 | stream_putl (s, ifp->metric); |
155 | stream_putl (s, ifp->mtu); | |
156 | stream_putl (s, ifp->mtu6); | |
157 | stream_putl (s, ifp->bandwidth); | |
158 | #ifdef HAVE_STRUCT_SOCKADDR_DL | |
ca3ccd87 | 159 | stream_put (s, &ifp->sdl, sizeof (ifp->sdl_storage)); |
51d4ef83 JB |
160 | #else |
161 | stream_putl (s, ifp->hw_addr_len); | |
162 | if (ifp->hw_addr_len) | |
163 | stream_put (s, ifp->hw_addr, ifp->hw_addr_len); | |
164 | #endif /* HAVE_STRUCT_SOCKADDR_DL */ | |
165 | ||
166 | /* Write packet size. */ | |
167 | stream_putw_at (s, 0, stream_get_endp (s)); | |
168 | } | |
169 | ||
718e3744 | 170 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 171 | /* |
172 | * This function is called in the following situations: | |
173 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
174 | * from the client. | |
175 | * - at startup, when zebra figures out the available interfaces | |
176 | * - when an interface is added (where support for | |
177 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
178 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
179 | * received) | |
180 | */ | |
718e3744 | 181 | int |
182 | zsend_interface_add (struct zserv *client, struct interface *ifp) | |
183 | { | |
184 | struct stream *s; | |
185 | ||
186 | /* Check this client need interface information. */ | |
187 | if (! client->ifinfo) | |
719e9741 | 188 | return 0; |
718e3744 | 189 | |
190 | s = client->obuf; | |
191 | stream_reset (s); | |
192 | ||
c1b9800a | 193 | zserv_create_header (s, ZEBRA_INTERFACE_ADD); |
51d4ef83 | 194 | zserv_encode_interface (s, ifp); |
718e3744 | 195 | |
04b02fda | 196 | client->ifadd_cnt++; |
719e9741 | 197 | return zebra_server_send_message(client); |
718e3744 | 198 | } |
199 | ||
200 | /* Interface deletion from zebra daemon. */ | |
201 | int | |
202 | zsend_interface_delete (struct zserv *client, struct interface *ifp) | |
203 | { | |
204 | struct stream *s; | |
205 | ||
206 | /* Check this client need interface information. */ | |
207 | if (! client->ifinfo) | |
719e9741 | 208 | return 0; |
718e3744 | 209 | |
210 | s = client->obuf; | |
211 | stream_reset (s); | |
718e3744 | 212 | |
51d4ef83 JB |
213 | zserv_create_header (s, ZEBRA_INTERFACE_DELETE); |
214 | zserv_encode_interface (s, ifp); | |
718e3744 | 215 | |
04b02fda | 216 | client->ifdel_cnt++; |
719e9741 | 217 | return zebra_server_send_message (client); |
718e3744 | 218 | } |
219 | ||
b9df2d25 | 220 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
221 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. | |
222 | * | |
223 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
224 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
225 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
226 | * sent from zebra to the client | |
227 | * - redistribute new address info to all clients in the following situations | |
228 | * - at startup, when zebra figures out the available interfaces | |
229 | * - when an interface is added (where support for | |
230 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
231 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
232 | * received) | |
233 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
234 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
235 | * - when an RTM_NEWADDR message is received from the kernel, | |
236 | * | |
237 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
238 | * | |
239 | * zsend_interface_address(DELETE) | |
240 | * ^ | |
241 | * | | |
242 | * zebra_interface_address_delete_update | |
243 | * ^ ^ ^ | |
6eb8827d | 244 | * | | if_delete_update |
245 | * | | | |
b9df2d25 | 246 | * ip_address_uninstall connected_delete_ipv4 |
247 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
248 | * ^ ^ | |
249 | * | | | |
250 | * | RTM_NEWADDR on routing/netlink socket | |
251 | * | | |
252 | * vty commands: | |
253 | * "no ip address A.B.C.D/M [label LINE]" | |
254 | * "no ip address A.B.C.D/M secondary" | |
255 | * ["no ipv6 address X:X::X:X/M"] | |
256 | * | |
257 | */ | |
718e3744 | 258 | int |
b9df2d25 | 259 | zsend_interface_address (int cmd, struct zserv *client, |
260 | struct interface *ifp, struct connected *ifc) | |
718e3744 | 261 | { |
262 | int blen; | |
263 | struct stream *s; | |
264 | struct prefix *p; | |
265 | ||
266 | /* Check this client need interface information. */ | |
267 | if (! client->ifinfo) | |
719e9741 | 268 | return 0; |
718e3744 | 269 | |
270 | s = client->obuf; | |
271 | stream_reset (s); | |
c1b9800a | 272 | |
273 | zserv_create_header (s, cmd); | |
718e3744 | 274 | stream_putl (s, ifp->ifindex); |
275 | ||
276 | /* Interface address flag. */ | |
277 | stream_putc (s, ifc->flags); | |
278 | ||
279 | /* Prefix information. */ | |
280 | p = ifc->address; | |
281 | stream_putc (s, p->family); | |
282 | blen = prefix_blen (p); | |
283 | stream_put (s, &p->u.prefix, blen); | |
b9df2d25 | 284 | |
285 | /* | |
286 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
287 | * but zebra_interface_address_delete_read() in the gnu version | |
288 | * expects to find it | |
289 | */ | |
718e3744 | 290 | stream_putc (s, p->prefixlen); |
291 | ||
292 | /* Destination. */ | |
293 | p = ifc->destination; | |
294 | if (p) | |
295 | stream_put (s, &p->u.prefix, blen); | |
296 | else | |
297 | stream_put (s, NULL, blen); | |
298 | ||
299 | /* Write packet size. */ | |
300 | stream_putw_at (s, 0, stream_get_endp (s)); | |
301 | ||
04b02fda | 302 | client->connected_rt_add_cnt++; |
719e9741 | 303 | return zebra_server_send_message(client); |
718e3744 | 304 | } |
305 | ||
a80beece DS |
306 | static int |
307 | zsend_interface_nbr_address (int cmd, struct zserv *client, | |
308 | struct interface *ifp, struct nbr_connected *ifc) | |
309 | { | |
310 | int blen; | |
311 | struct stream *s; | |
312 | struct prefix *p; | |
313 | ||
314 | /* Check this client need interface information. */ | |
315 | if (! client->ifinfo) | |
316 | return 0; | |
317 | ||
318 | s = client->obuf; | |
319 | stream_reset (s); | |
320 | ||
321 | zserv_create_header (s, cmd); | |
322 | stream_putl (s, ifp->ifindex); | |
323 | ||
324 | /* Prefix information. */ | |
325 | p = ifc->address; | |
326 | stream_putc (s, p->family); | |
327 | blen = prefix_blen (p); | |
328 | stream_put (s, &p->u.prefix, blen); | |
329 | ||
330 | /* | |
331 | * XXX gnu version does not send prefixlen for ZEBRA_INTERFACE_ADDRESS_DELETE | |
332 | * but zebra_interface_address_delete_read() in the gnu version | |
333 | * expects to find it | |
334 | */ | |
335 | stream_putc (s, p->prefixlen); | |
336 | ||
337 | /* Write packet size. */ | |
338 | stream_putw_at (s, 0, stream_get_endp (s)); | |
339 | ||
340 | return zebra_server_send_message(client); | |
341 | } | |
342 | ||
343 | /* Interface address addition. */ | |
344 | static void | |
345 | zebra_interface_nbr_address_add_update (struct interface *ifp, | |
346 | struct nbr_connected *ifc) | |
347 | { | |
348 | struct listnode *node, *nnode; | |
349 | struct zserv *client; | |
350 | struct prefix *p; | |
351 | ||
352 | if (IS_ZEBRA_DEBUG_EVENT) | |
353 | { | |
354 | char buf[INET6_ADDRSTRLEN]; | |
355 | ||
356 | p = ifc->address; | |
357 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
358 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
359 | p->prefixlen, ifc->ifp->name); | |
360 | } | |
361 | ||
362 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
363 | if (client->ifinfo) | |
364 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, ifp, ifc); | |
365 | } | |
366 | ||
367 | /* Interface address deletion. */ | |
368 | static void | |
369 | zebra_interface_nbr_address_delete_update (struct interface *ifp, | |
370 | struct nbr_connected *ifc) | |
371 | { | |
372 | struct listnode *node, *nnode; | |
373 | struct zserv *client; | |
374 | struct prefix *p; | |
375 | ||
376 | if (IS_ZEBRA_DEBUG_EVENT) | |
377 | { | |
378 | char buf[INET6_ADDRSTRLEN]; | |
379 | ||
380 | p = ifc->address; | |
381 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
382 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN), | |
383 | p->prefixlen, ifc->ifp->name); | |
384 | } | |
385 | ||
386 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
387 | if (client->ifinfo) | |
388 | zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, client, ifp, ifc); | |
389 | } | |
390 | ||
391 | /* Add new nbr connected IPv6 address if none exists already, or replace the | |
392 | existing one if an ifc entry is found on the interface. */ | |
393 | void | |
394 | nbr_connected_replacement_add_ipv6 (struct interface *ifp, struct in6_addr *address, | |
395 | u_char prefixlen) | |
396 | { | |
397 | struct nbr_connected *ifc; | |
398 | struct prefix p; | |
399 | ||
400 | p.family = AF_INET6; | |
401 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
402 | p.prefixlen = prefixlen; | |
403 | ||
404 | if (nbr_connected_check(ifp, &p)) | |
405 | return; | |
406 | ||
407 | if (!(ifc = listnode_head(ifp->nbr_connected))) | |
408 | { | |
409 | /* new addition */ | |
410 | ifc = nbr_connected_new (); | |
411 | ifc->address = prefix_new(); | |
412 | ifc->ifp = ifp; | |
413 | listnode_add (ifp->nbr_connected, ifc); | |
414 | } | |
415 | ||
416 | prefix_copy(ifc->address, &p); | |
417 | ||
418 | zebra_interface_nbr_address_add_update (ifp, ifc); | |
5c610faf DS |
419 | |
420 | if_nbr_ipv6ll_to_ipv4ll_neigh_update (ifp, address, 1); | |
a80beece DS |
421 | } |
422 | ||
423 | void | |
424 | nbr_connected_delete_ipv6 (struct interface *ifp, struct in6_addr *address, | |
425 | u_char prefixlen) | |
426 | { | |
427 | struct nbr_connected *ifc; | |
428 | struct prefix p; | |
429 | ||
430 | p.family = AF_INET6; | |
431 | IPV6_ADDR_COPY (&p.u.prefix, address); | |
432 | p.prefixlen = prefixlen; | |
433 | ||
434 | ifc = nbr_connected_check(ifp, &p); | |
435 | if (!ifc) | |
436 | return; | |
437 | ||
438 | listnode_delete (ifp->nbr_connected, ifc); | |
439 | ||
440 | zebra_interface_nbr_address_delete_update (ifp, ifc); | |
441 | ||
5c610faf DS |
442 | if_nbr_ipv6ll_to_ipv4ll_neigh_update (ifp, address, 0); |
443 | ||
a80beece DS |
444 | nbr_connected_free (ifc); |
445 | } | |
446 | ||
b9df2d25 | 447 | /* |
448 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
449 | * ZEBRA_INTERFACE_DOWN. | |
450 | * | |
451 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
452 | * the clients in one of 2 situations: | |
453 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
454 | * - a vty command modifying the bandwidth of an interface is received. | |
455 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
456 | */ | |
718e3744 | 457 | int |
b9df2d25 | 458 | zsend_interface_update (int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 459 | { |
460 | struct stream *s; | |
461 | ||
462 | /* Check this client need interface information. */ | |
463 | if (! client->ifinfo) | |
719e9741 | 464 | return 0; |
718e3744 | 465 | |
466 | s = client->obuf; | |
467 | stream_reset (s); | |
468 | ||
c1b9800a | 469 | zserv_create_header (s, cmd); |
51d4ef83 | 470 | zserv_encode_interface (s, ifp); |
718e3744 | 471 | |
04b02fda DS |
472 | if (cmd == ZEBRA_INTERFACE_UP) |
473 | client->ifup_cnt++; | |
474 | else | |
475 | client->ifdown_cnt++; | |
476 | ||
719e9741 | 477 | return zebra_server_send_message(client); |
718e3744 | 478 | } |
479 | ||
b9df2d25 | 480 | /* |
481 | * The zebra server sends the clients a ZEBRA_IPV4_ROUTE_ADD or a | |
482 | * ZEBRA_IPV6_ROUTE_ADD via zsend_route_multipath in the following | |
483 | * situations: | |
484 | * - when the client starts up, and requests default information | |
485 | * by sending a ZEBRA_REDISTRIBUTE_DEFAULT_ADD to the zebra server, in the | |
486 | * - case of rip, ripngd, ospfd and ospf6d, when the client sends a | |
487 | * ZEBRA_REDISTRIBUTE_ADD as a result of the "redistribute" vty cmd, | |
488 | * - when the zebra server redistributes routes after it updates its rib | |
489 | * | |
490 | * The zebra server sends clients a ZEBRA_IPV4_ROUTE_DELETE or a | |
491 | * ZEBRA_IPV6_ROUTE_DELETE via zsend_route_multipath when: | |
492 | * - a "ip route" or "ipv6 route" vty command is issued, a prefix is | |
493 | * - deleted from zebra's rib, and this info | |
494 | * has to be redistributed to the clients | |
495 | * | |
496 | * XXX The ZEBRA_IPV*_ROUTE_ADD message is also sent by the client to the | |
497 | * zebra server when the client wants to tell the zebra server to add a | |
498 | * route to the kernel (zapi_ipv4_add etc. ). Since it's essentially the | |
499 | * same message being sent back and forth, this function and | |
500 | * zapi_ipv{4,6}_{add, delete} should be re-written to avoid code | |
501 | * duplication. | |
502 | */ | |
718e3744 | 503 | int |
b9df2d25 | 504 | zsend_route_multipath (int cmd, struct zserv *client, struct prefix *p, |
505 | struct rib *rib) | |
718e3744 | 506 | { |
507 | int psize; | |
508 | struct stream *s; | |
509 | struct nexthop *nexthop; | |
1dcb5172 | 510 | unsigned long nhnummark = 0, messmark = 0; |
b9df2d25 | 511 | int nhnum = 0; |
1dcb5172 | 512 | u_char zapi_flags = 0; |
b9df2d25 | 513 | |
718e3744 | 514 | s = client->obuf; |
515 | stream_reset (s); | |
c1b9800a | 516 | |
517 | zserv_create_header (s, cmd); | |
518 | ||
519 | /* Put type and nexthop. */ | |
718e3744 | 520 | stream_putc (s, rib->type); |
7c8ff89e | 521 | stream_putw (s, rib->instance); |
718e3744 | 522 | stream_putc (s, rib->flags); |
1dcb5172 | 523 | |
524 | /* marker for message flags field */ | |
525 | messmark = stream_get_endp (s); | |
526 | stream_putc (s, 0); | |
718e3744 | 527 | |
528 | /* Prefix. */ | |
529 | psize = PSIZE (p->prefixlen); | |
530 | stream_putc (s, p->prefixlen); | |
b9df2d25 | 531 | stream_write (s, (u_char *) & p->u.prefix, psize); |
532 | ||
533 | /* | |
534 | * XXX The message format sent by zebra below does not match the format | |
535 | * of the corresponding message expected by the zebra server | |
536 | * itself (e.g., see zread_ipv4_add). The nexthop_num is not set correctly, | |
537 | * (is there a bug on the client side if more than one segment is sent?) | |
538 | * nexthop ZEBRA_NEXTHOP_IPV4 is never set, ZEBRA_NEXTHOP_IFINDEX | |
539 | * is hard-coded. | |
540 | */ | |
718e3744 | 541 | /* Nexthop */ |
1dcb5172 | 542 | |
718e3744 | 543 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
544 | { | |
fa713d9e CF |
545 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
546 | || nexthop_has_fib_child(nexthop)) | |
b9df2d25 | 547 | { |
1dcb5172 | 548 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_NEXTHOP); |
549 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
550 | ||
551 | if (nhnummark == 0) | |
552 | { | |
553 | nhnummark = stream_get_endp (s); | |
554 | stream_putc (s, 1); /* placeholder */ | |
555 | } | |
556 | ||
b9df2d25 | 557 | nhnum++; |
558 | ||
559 | switch(nexthop->type) | |
560 | { | |
561 | case NEXTHOP_TYPE_IPV4: | |
562 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
563 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
564 | break; | |
718e3744 | 565 | #ifdef HAVE_IPV6 |
b9df2d25 | 566 | case NEXTHOP_TYPE_IPV6: |
567 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
568 | case NEXTHOP_TYPE_IPV6_IFNAME: | |
569 | stream_write (s, (u_char *) &nexthop->gate.ipv6, 16); | |
570 | break; | |
571 | #endif | |
572 | default: | |
573 | if (cmd == ZEBRA_IPV4_ROUTE_ADD | |
574 | || cmd == ZEBRA_IPV4_ROUTE_DELETE) | |
575 | { | |
576 | struct in_addr empty; | |
44983cf8 | 577 | memset (&empty, 0, sizeof (struct in_addr)); |
b9df2d25 | 578 | stream_write (s, (u_char *) &empty, IPV4_MAX_BYTELEN); |
579 | } | |
580 | else | |
581 | { | |
582 | struct in6_addr empty; | |
583 | memset (&empty, 0, sizeof (struct in6_addr)); | |
584 | stream_write (s, (u_char *) &empty, IPV6_MAX_BYTELEN); | |
585 | } | |
586 | } | |
587 | ||
588 | /* Interface index. */ | |
589 | stream_putc (s, 1); | |
590 | stream_putl (s, nexthop->ifindex); | |
591 | ||
592 | break; | |
593 | } | |
718e3744 | 594 | } |
595 | ||
596 | /* Metric */ | |
cf8a831b | 597 | if (cmd == ZEBRA_IPV4_ROUTE_ADD || cmd == ZEBRA_IPV6_ROUTE_ADD) |
1dcb5172 | 598 | { |
fbf5d033 | 599 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_DISTANCE); |
600 | stream_putc (s, rib->distance); | |
1dcb5172 | 601 | SET_FLAG (zapi_flags, ZAPI_MESSAGE_METRIC); |
602 | stream_putl (s, rib->metric); | |
0d9551dc DS |
603 | |
604 | /* tag */ | |
605 | if (rib->tag) | |
606 | { | |
607 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
608 | stream_putw(s, rib->tag); | |
609 | } | |
1dcb5172 | 610 | } |
611 | ||
612 | /* write real message flags value */ | |
613 | stream_putc_at (s, messmark, zapi_flags); | |
614 | ||
b9df2d25 | 615 | /* Write next-hop number */ |
616 | if (nhnummark) | |
c1eaa442 | 617 | stream_putc_at (s, nhnummark, nhnum); |
b9df2d25 | 618 | |
718e3744 | 619 | /* Write packet size. */ |
620 | stream_putw_at (s, 0, stream_get_endp (s)); | |
621 | ||
719e9741 | 622 | return zebra_server_send_message(client); |
718e3744 | 623 | } |
624 | ||
b9df2d25 | 625 | #ifdef HAVE_IPV6 |
719e9741 | 626 | static int |
718e3744 | 627 | zsend_ipv6_nexthop_lookup (struct zserv *client, struct in6_addr *addr) |
628 | { | |
629 | struct stream *s; | |
630 | struct rib *rib; | |
631 | unsigned long nump; | |
632 | u_char num; | |
633 | struct nexthop *nexthop; | |
634 | ||
635 | /* Lookup nexthop. */ | |
636 | rib = rib_match_ipv6 (addr); | |
637 | ||
638 | /* Get output stream. */ | |
639 | s = client->obuf; | |
640 | stream_reset (s); | |
641 | ||
642 | /* Fill in result. */ | |
c1b9800a | 643 | zserv_create_header (s, ZEBRA_IPV6_NEXTHOP_LOOKUP); |
718e3744 | 644 | stream_put (s, &addr, 16); |
645 | ||
646 | if (rib) | |
647 | { | |
648 | stream_putl (s, rib->metric); | |
649 | num = 0; | |
9985f83c | 650 | nump = stream_get_endp(s); |
718e3744 | 651 | stream_putc (s, 0); |
fa713d9e CF |
652 | /* Only non-recursive routes are elegible to resolve nexthop we |
653 | * are looking up. Therefore, we will just iterate over the top | |
654 | * chain of nexthops. */ | |
718e3744 | 655 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
656 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
657 | { | |
658 | stream_putc (s, nexthop->type); | |
659 | switch (nexthop->type) | |
660 | { | |
661 | case ZEBRA_NEXTHOP_IPV6: | |
662 | stream_put (s, &nexthop->gate.ipv6, 16); | |
663 | break; | |
664 | case ZEBRA_NEXTHOP_IPV6_IFINDEX: | |
665 | case ZEBRA_NEXTHOP_IPV6_IFNAME: | |
666 | stream_put (s, &nexthop->gate.ipv6, 16); | |
667 | stream_putl (s, nexthop->ifindex); | |
668 | break; | |
669 | case ZEBRA_NEXTHOP_IFINDEX: | |
670 | case ZEBRA_NEXTHOP_IFNAME: | |
671 | stream_putl (s, nexthop->ifindex); | |
672 | break; | |
fa2b17e3 | 673 | default: |
674 | /* do nothing */ | |
675 | break; | |
718e3744 | 676 | } |
677 | num++; | |
678 | } | |
679 | stream_putc_at (s, nump, num); | |
680 | } | |
681 | else | |
682 | { | |
683 | stream_putl (s, 0); | |
684 | stream_putc (s, 0); | |
685 | } | |
686 | ||
687 | stream_putw_at (s, 0, stream_get_endp (s)); | |
04b02fda | 688 | |
719e9741 | 689 | return zebra_server_send_message(client); |
718e3744 | 690 | } |
691 | #endif /* HAVE_IPV6 */ | |
692 | ||
b9df2d25 | 693 | static int |
718e3744 | 694 | zsend_ipv4_nexthop_lookup (struct zserv *client, struct in_addr addr) |
695 | { | |
696 | struct stream *s; | |
697 | struct rib *rib; | |
698 | unsigned long nump; | |
699 | u_char num; | |
700 | struct nexthop *nexthop; | |
701 | ||
702 | /* Lookup nexthop. */ | |
703 | rib = rib_match_ipv4 (addr); | |
704 | ||
705 | /* Get output stream. */ | |
706 | s = client->obuf; | |
707 | stream_reset (s); | |
708 | ||
709 | /* Fill in result. */ | |
c1b9800a | 710 | zserv_create_header (s, ZEBRA_IPV4_NEXTHOP_LOOKUP); |
718e3744 | 711 | stream_put_in_addr (s, &addr); |
712 | ||
713 | if (rib) | |
714 | { | |
bb97e462 CF |
715 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
716 | zlog_debug("%s: Matching rib entry found.", __func__); | |
718e3744 | 717 | stream_putl (s, rib->metric); |
718 | num = 0; | |
9985f83c | 719 | nump = stream_get_endp(s); |
718e3744 | 720 | stream_putc (s, 0); |
fa713d9e CF |
721 | /* Only non-recursive routes are elegible to resolve the nexthop we |
722 | * are looking up. Therefore, we will just iterate over the top | |
723 | * chain of nexthops. */ | |
718e3744 | 724 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) |
725 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)) | |
726 | { | |
727 | stream_putc (s, nexthop->type); | |
728 | switch (nexthop->type) | |
729 | { | |
730 | case ZEBRA_NEXTHOP_IPV4: | |
731 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
732 | break; | |
bb97e462 CF |
733 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
734 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
735 | stream_putl (s, nexthop->ifindex); | |
736 | break; | |
718e3744 | 737 | case ZEBRA_NEXTHOP_IFINDEX: |
738 | case ZEBRA_NEXTHOP_IFNAME: | |
739 | stream_putl (s, nexthop->ifindex); | |
740 | break; | |
fa2b17e3 | 741 | default: |
742 | /* do nothing */ | |
743 | break; | |
718e3744 | 744 | } |
745 | num++; | |
746 | } | |
747 | stream_putc_at (s, nump, num); | |
748 | } | |
749 | else | |
750 | { | |
bb97e462 CF |
751 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
752 | zlog_debug("%s: No matching rib entry found.", __func__); | |
718e3744 | 753 | stream_putl (s, 0); |
754 | stream_putc (s, 0); | |
755 | } | |
756 | ||
757 | stream_putw_at (s, 0, stream_get_endp (s)); | |
758 | ||
719e9741 | 759 | return zebra_server_send_message(client); |
718e3744 | 760 | } |
761 | ||
fb018d25 DS |
762 | /* Nexthop register */ |
763 | static int | |
078430f6 DS |
764 | zserv_rnh_register (struct zserv *client, int sock, u_short length, |
765 | rnh_type_t type) | |
fb018d25 DS |
766 | { |
767 | struct rnh *rnh; | |
768 | struct stream *s; | |
769 | struct prefix p; | |
770 | u_short l = 0; | |
078430f6 | 771 | u_char flags = 0; |
fb018d25 DS |
772 | |
773 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 DS |
774 | zlog_debug("rnh_register msg from client %s: length=%d, type=%s\n", |
775 | zebra_route_string(client->proto), length, | |
776 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route"); | |
fb018d25 DS |
777 | |
778 | s = client->ibuf; | |
779 | ||
078430f6 DS |
780 | client->nh_reg_time = quagga_time(NULL); |
781 | ||
fb018d25 DS |
782 | while (l < length) |
783 | { | |
078430f6 | 784 | flags = stream_getc(s); |
fb018d25 DS |
785 | p.family = stream_getw(s); |
786 | p.prefixlen = stream_getc(s); | |
fc9a856f | 787 | l += 4; |
078430f6 DS |
788 | if (p.family == AF_INET) |
789 | { | |
790 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
791 | l += IPV4_MAX_BYTELEN; | |
792 | } | |
793 | else if (p.family == AF_INET6) | |
794 | { | |
795 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
796 | l += IPV6_MAX_BYTELEN; | |
797 | } | |
798 | else | |
799 | { | |
800 | zlog_err("rnh_register: Received unknown family type %d\n", | |
801 | p.family); | |
802 | return -1; | |
803 | } | |
804 | rnh = zebra_add_rnh(&p, 0, type); | |
805 | if (type == RNH_NEXTHOP_TYPE) | |
806 | { | |
807 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
808 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
809 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
810 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
811 | } | |
812 | else if (type == RNH_IMPORT_CHECK_TYPE) | |
813 | { | |
814 | if (flags && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
815 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
816 | else if (!flags && CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
817 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
818 | } | |
819 | ||
820 | zebra_add_rnh_client(rnh, client, type); | |
821 | /* Anything not AF_INET/INET6 has been filtered out above */ | |
822 | zebra_evaluate_rnh(0, p.family, 1, type, &p); | |
fb018d25 | 823 | } |
fb018d25 DS |
824 | return 0; |
825 | } | |
826 | ||
827 | /* Nexthop register */ | |
828 | static int | |
078430f6 DS |
829 | zserv_rnh_unregister (struct zserv *client, int sock, u_short length, |
830 | rnh_type_t type) | |
fb018d25 DS |
831 | { |
832 | struct rnh *rnh; | |
833 | struct stream *s; | |
834 | struct prefix p; | |
835 | u_short l = 0; | |
836 | ||
837 | if (IS_ZEBRA_DEBUG_NHT) | |
078430f6 | 838 | zlog_debug("rnh_unregister msg from client %s: length=%d\n", |
fb018d25 DS |
839 | zebra_route_string(client->proto), length); |
840 | ||
841 | s = client->ibuf; | |
842 | ||
843 | while (l < length) | |
844 | { | |
4e3afb14 | 845 | (void)stream_getc(s); //Connected or not. Not used in this function |
fb018d25 DS |
846 | p.family = stream_getw(s); |
847 | p.prefixlen = stream_getc(s); | |
fc9a856f | 848 | l += 4; |
078430f6 DS |
849 | if (p.family == AF_INET) |
850 | { | |
851 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
852 | l += IPV4_MAX_BYTELEN; | |
853 | } | |
854 | else if (p.family == AF_INET6) | |
855 | { | |
856 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
857 | l += IPV6_MAX_BYTELEN; | |
858 | } | |
859 | else | |
860 | { | |
861 | zlog_err("rnh_register: Received unknown family type %d\n", | |
862 | p.family); | |
863 | return -1; | |
864 | } | |
865 | rnh = zebra_lookup_rnh(&p, 0, type); | |
fb018d25 | 866 | if (rnh) |
04b02fda DS |
867 | { |
868 | client->nh_dereg_time = quagga_time(NULL); | |
078430f6 | 869 | zebra_remove_rnh_client(rnh, client, type); |
04b02fda | 870 | } |
fb018d25 DS |
871 | } |
872 | return 0; | |
873 | } | |
874 | ||
b9df2d25 | 875 | static int |
718e3744 | 876 | zsend_ipv4_import_lookup (struct zserv *client, struct prefix_ipv4 *p) |
877 | { | |
878 | struct stream *s; | |
879 | struct rib *rib; | |
880 | unsigned long nump; | |
881 | u_char num; | |
882 | struct nexthop *nexthop; | |
883 | ||
884 | /* Lookup nexthop. */ | |
885 | rib = rib_lookup_ipv4 (p); | |
886 | ||
887 | /* Get output stream. */ | |
888 | s = client->obuf; | |
889 | stream_reset (s); | |
890 | ||
891 | /* Fill in result. */ | |
c1b9800a | 892 | zserv_create_header (s, ZEBRA_IPV4_IMPORT_LOOKUP); |
718e3744 | 893 | stream_put_in_addr (s, &p->prefix); |
894 | ||
895 | if (rib) | |
896 | { | |
897 | stream_putl (s, rib->metric); | |
898 | num = 0; | |
9985f83c | 899 | nump = stream_get_endp(s); |
718e3744 | 900 | stream_putc (s, 0); |
901 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
fa713d9e CF |
902 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB) |
903 | || nexthop_has_fib_child(nexthop)) | |
718e3744 | 904 | { |
905 | stream_putc (s, nexthop->type); | |
906 | switch (nexthop->type) | |
907 | { | |
908 | case ZEBRA_NEXTHOP_IPV4: | |
909 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
910 | break; | |
a12afd5e CF |
911 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
912 | stream_put_in_addr (s, &nexthop->gate.ipv4); | |
913 | stream_putl (s, nexthop->ifindex); | |
914 | break; | |
718e3744 | 915 | case ZEBRA_NEXTHOP_IFINDEX: |
916 | case ZEBRA_NEXTHOP_IFNAME: | |
917 | stream_putl (s, nexthop->ifindex); | |
918 | break; | |
fa2b17e3 | 919 | default: |
920 | /* do nothing */ | |
921 | break; | |
718e3744 | 922 | } |
923 | num++; | |
924 | } | |
925 | stream_putc_at (s, nump, num); | |
926 | } | |
927 | else | |
928 | { | |
929 | stream_putl (s, 0); | |
930 | stream_putc (s, 0); | |
931 | } | |
932 | ||
933 | stream_putw_at (s, 0, stream_get_endp (s)); | |
04b02fda | 934 | |
719e9741 | 935 | return zebra_server_send_message(client); |
718e3744 | 936 | } |
6b0655a2 | 937 | |
18a6dce6 | 938 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
939 | int | |
940 | zsend_router_id_update (struct zserv *client, struct prefix *p) | |
941 | { | |
942 | struct stream *s; | |
943 | int blen; | |
944 | ||
945 | /* Check this client need interface information. */ | |
946 | if (!client->ridinfo) | |
719e9741 | 947 | return 0; |
18a6dce6 | 948 | |
949 | s = client->obuf; | |
950 | stream_reset (s); | |
951 | ||
18a6dce6 | 952 | /* Message type. */ |
c1b9800a | 953 | zserv_create_header (s, ZEBRA_ROUTER_ID_UPDATE); |
18a6dce6 | 954 | |
955 | /* Prefix information. */ | |
956 | stream_putc (s, p->family); | |
957 | blen = prefix_blen (p); | |
958 | stream_put (s, &p->u.prefix, blen); | |
959 | stream_putc (s, p->prefixlen); | |
960 | ||
961 | /* Write packet size. */ | |
962 | stream_putw_at (s, 0, stream_get_endp (s)); | |
963 | ||
719e9741 | 964 | return zebra_server_send_message(client); |
18a6dce6 | 965 | } |
6b0655a2 | 966 | |
718e3744 | 967 | /* Register zebra server interface information. Send current all |
968 | interface and address information. */ | |
719e9741 | 969 | static int |
718e3744 | 970 | zread_interface_add (struct zserv *client, u_short length) |
971 | { | |
1eb8ef25 | 972 | struct listnode *ifnode, *ifnnode; |
973 | struct listnode *cnode, *cnnode; | |
718e3744 | 974 | struct interface *ifp; |
975 | struct connected *c; | |
a80beece | 976 | struct nbr_connected *nc; |
718e3744 | 977 | |
978 | /* Interface information is needed. */ | |
979 | client->ifinfo = 1; | |
980 | ||
1eb8ef25 | 981 | for (ALL_LIST_ELEMENTS (iflist, ifnode, ifnnode, ifp)) |
718e3744 | 982 | { |
718e3744 | 983 | /* Skip pseudo interface. */ |
984 | if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
985 | continue; | |
986 | ||
719e9741 | 987 | if (zsend_interface_add (client, ifp) < 0) |
988 | return -1; | |
718e3744 | 989 | |
1eb8ef25 | 990 | for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, c)) |
718e3744 | 991 | { |
719e9741 | 992 | if (CHECK_FLAG (c->conf, ZEBRA_IFC_REAL) && |
993 | (zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, | |
994 | ifp, c) < 0)) | |
995 | return -1; | |
718e3744 | 996 | } |
a80beece DS |
997 | for (ALL_LIST_ELEMENTS (ifp->nbr_connected, cnode, cnnode, nc)) |
998 | { | |
999 | if (zsend_interface_nbr_address (ZEBRA_INTERFACE_NBR_ADDRESS_ADD, client, | |
1000 | ifp, nc) < 0) | |
1001 | return -1; | |
1002 | } | |
1003 | ||
718e3744 | 1004 | } |
719e9741 | 1005 | return 0; |
718e3744 | 1006 | } |
1007 | ||
1008 | /* Unregister zebra server interface information. */ | |
719e9741 | 1009 | static int |
718e3744 | 1010 | zread_interface_delete (struct zserv *client, u_short length) |
1011 | { | |
1012 | client->ifinfo = 0; | |
719e9741 | 1013 | return 0; |
718e3744 | 1014 | } |
1015 | ||
1016 | /* This function support multiple nexthop. */ | |
b9df2d25 | 1017 | /* |
1018 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update rib and | |
1019 | * add kernel route. | |
1020 | */ | |
719e9741 | 1021 | static int |
718e3744 | 1022 | zread_ipv4_add (struct zserv *client, u_short length) |
1023 | { | |
1024 | int i; | |
1025 | struct rib *rib; | |
1026 | struct prefix_ipv4 p; | |
1027 | u_char message; | |
1028 | struct in_addr nexthop; | |
1029 | u_char nexthop_num; | |
1030 | u_char nexthop_type; | |
1031 | struct stream *s; | |
1032 | unsigned int ifindex; | |
1033 | u_char ifname_len; | |
cddf391b | 1034 | safi_t safi; |
04b02fda | 1035 | int ret; |
718e3744 | 1036 | |
1037 | /* Get input stream. */ | |
1038 | s = client->ibuf; | |
1039 | ||
1040 | /* Allocate new rib. */ | |
4d38fdb4 | 1041 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); |
1042 | ||
718e3744 | 1043 | /* Type, flags, message. */ |
1044 | rib->type = stream_getc (s); | |
7c8ff89e | 1045 | rib->instance = stream_getw (s); |
718e3744 | 1046 | rib->flags = stream_getc (s); |
b9df2d25 | 1047 | message = stream_getc (s); |
cddf391b | 1048 | safi = stream_getw (s); |
718e3744 | 1049 | rib->uptime = time (NULL); |
1050 | ||
1051 | /* IPv4 prefix. */ | |
1052 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1053 | p.family = AF_INET; | |
1054 | p.prefixlen = stream_getc (s); | |
1055 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1056 | ||
1057 | /* Nexthop parse. */ | |
1058 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1059 | { | |
1060 | nexthop_num = stream_getc (s); | |
1061 | ||
1062 | for (i = 0; i < nexthop_num; i++) | |
1063 | { | |
1064 | nexthop_type = stream_getc (s); | |
1065 | ||
1066 | switch (nexthop_type) | |
1067 | { | |
1068 | case ZEBRA_NEXTHOP_IFINDEX: | |
1069 | ifindex = stream_getl (s); | |
1070 | nexthop_ifindex_add (rib, ifindex); | |
1071 | break; | |
1072 | case ZEBRA_NEXTHOP_IFNAME: | |
1073 | ifname_len = stream_getc (s); | |
9985f83c | 1074 | stream_forward_getp (s, ifname_len); |
718e3744 | 1075 | break; |
1076 | case ZEBRA_NEXTHOP_IPV4: | |
1077 | nexthop.s_addr = stream_get_ipv4 (s); | |
7514fb77 | 1078 | nexthop_ipv4_add (rib, &nexthop, NULL); |
718e3744 | 1079 | break; |
c963c203 JT |
1080 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1081 | nexthop.s_addr = stream_get_ipv4 (s); | |
1082 | ifindex = stream_getl (s); | |
1083 | nexthop_ipv4_ifindex_add (rib, &nexthop, NULL, ifindex); | |
1084 | break; | |
718e3744 | 1085 | case ZEBRA_NEXTHOP_IPV6: |
9985f83c | 1086 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1087 | break; |
6902c69a SV |
1088 | case ZEBRA_NEXTHOP_BLACKHOLE: |
1089 | nexthop_blackhole_add (rib); | |
1090 | break; | |
c8a1cb5c DS |
1091 | case ZEBRA_NEXTHOP_IPV4_ONLINK: |
1092 | nexthop.s_addr = stream_get_ipv4 (s); | |
1093 | ifindex = stream_getl (s); | |
1094 | nexthop_ipv4_ifindex_ol_add (rib, &nexthop, NULL, ifindex); | |
1095 | break; | |
6902c69a | 1096 | } |
718e3744 | 1097 | } |
1098 | } | |
1099 | ||
1100 | /* Distance. */ | |
1101 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1102 | rib->distance = stream_getc (s); | |
1103 | ||
1104 | /* Metric. */ | |
1105 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1106 | rib->metric = stream_getl (s); | |
1107 | ||
0d9551dc DS |
1108 | /* Tag */ |
1109 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1110 | rib->tag = stream_getw (s); | |
1111 | else | |
1112 | rib->tag = 0; | |
1113 | ||
171eee31 PJ |
1114 | /* Table */ |
1115 | rib->table=zebrad.rtm_table_default; | |
04b02fda DS |
1116 | ret = rib_add_ipv4_multipath (&p, rib, safi); |
1117 | ||
1118 | /* Stats */ | |
1119 | if (ret > 0) | |
1120 | client->v4_route_add_cnt++; | |
1121 | else if (ret < 0) | |
1122 | client->v4_route_upd8_cnt++; | |
719e9741 | 1123 | return 0; |
718e3744 | 1124 | } |
1125 | ||
1126 | /* Zebra server IPv4 prefix delete function. */ | |
719e9741 | 1127 | static int |
718e3744 | 1128 | zread_ipv4_delete (struct zserv *client, u_short length) |
1129 | { | |
1130 | int i; | |
1131 | struct stream *s; | |
1132 | struct zapi_ipv4 api; | |
6902c69a | 1133 | struct in_addr nexthop, *nexthop_p; |
718e3744 | 1134 | unsigned long ifindex; |
1135 | struct prefix_ipv4 p; | |
1136 | u_char nexthop_num; | |
1137 | u_char nexthop_type; | |
1138 | u_char ifname_len; | |
1139 | ||
1140 | s = client->ibuf; | |
1141 | ifindex = 0; | |
1142 | nexthop.s_addr = 0; | |
6902c69a | 1143 | nexthop_p = NULL; |
718e3744 | 1144 | |
1145 | /* Type, flags, message. */ | |
1146 | api.type = stream_getc (s); | |
7c8ff89e | 1147 | api.instance = stream_getw (s); |
718e3744 | 1148 | api.flags = stream_getc (s); |
1149 | api.message = stream_getc (s); | |
cddf391b | 1150 | api.safi = stream_getw (s); |
718e3744 | 1151 | |
1152 | /* IPv4 prefix. */ | |
1153 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1154 | p.family = AF_INET; | |
1155 | p.prefixlen = stream_getc (s); | |
1156 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1157 | ||
1158 | /* Nexthop, ifindex, distance, metric. */ | |
1159 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1160 | { | |
1161 | nexthop_num = stream_getc (s); | |
1162 | ||
1163 | for (i = 0; i < nexthop_num; i++) | |
1164 | { | |
1165 | nexthop_type = stream_getc (s); | |
1166 | ||
1167 | switch (nexthop_type) | |
1168 | { | |
1169 | case ZEBRA_NEXTHOP_IFINDEX: | |
1170 | ifindex = stream_getl (s); | |
1171 | break; | |
1172 | case ZEBRA_NEXTHOP_IFNAME: | |
1173 | ifname_len = stream_getc (s); | |
9985f83c | 1174 | stream_forward_getp (s, ifname_len); |
718e3744 | 1175 | break; |
1176 | case ZEBRA_NEXTHOP_IPV4: | |
1177 | nexthop.s_addr = stream_get_ipv4 (s); | |
6902c69a | 1178 | nexthop_p = &nexthop; |
718e3744 | 1179 | break; |
c963c203 JT |
1180 | case ZEBRA_NEXTHOP_IPV4_IFINDEX: |
1181 | nexthop.s_addr = stream_get_ipv4 (s); | |
23f5f7c3 | 1182 | nexthop_p = &nexthop; |
c963c203 JT |
1183 | ifindex = stream_getl (s); |
1184 | break; | |
718e3744 | 1185 | case ZEBRA_NEXTHOP_IPV6: |
9985f83c | 1186 | stream_forward_getp (s, IPV6_MAX_BYTELEN); |
718e3744 | 1187 | break; |
1188 | } | |
1189 | } | |
1190 | } | |
1191 | ||
1192 | /* Distance. */ | |
1193 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
1194 | api.distance = stream_getc (s); | |
1195 | else | |
1196 | api.distance = 0; | |
1197 | ||
1198 | /* Metric. */ | |
1199 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
1200 | api.metric = stream_getl (s); | |
1201 | else | |
1202 | api.metric = 0; | |
1203 | ||
0d9551dc DS |
1204 | /* tag */ |
1205 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1206 | api.tag = stream_getw (s); | |
1207 | else | |
1208 | api.tag = 0; | |
1209 | ||
7c8ff89e | 1210 | rib_delete_ipv4 (api.type, api.instance, api.flags, &p, nexthop_p, ifindex, |
cddf391b | 1211 | client->rtm_table, api.safi); |
04b02fda | 1212 | client->v4_route_del_cnt++; |
719e9741 | 1213 | return 0; |
718e3744 | 1214 | } |
1215 | ||
1216 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 1217 | static int |
718e3744 | 1218 | zread_ipv4_nexthop_lookup (struct zserv *client, u_short length) |
1219 | { | |
1220 | struct in_addr addr; | |
bb97e462 | 1221 | char buf[BUFSIZ]; |
718e3744 | 1222 | |
1223 | addr.s_addr = stream_get_ipv4 (client->ibuf); | |
bb97e462 CF |
1224 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
1225 | zlog_debug("%s: looking up %s", __func__, | |
1226 | inet_ntop (AF_INET, &addr, buf, BUFSIZ)); | |
719e9741 | 1227 | return zsend_ipv4_nexthop_lookup (client, addr); |
718e3744 | 1228 | } |
1229 | ||
1230 | /* Nexthop lookup for IPv4. */ | |
719e9741 | 1231 | static int |
718e3744 | 1232 | zread_ipv4_import_lookup (struct zserv *client, u_short length) |
1233 | { | |
1234 | struct prefix_ipv4 p; | |
1235 | ||
1236 | p.family = AF_INET; | |
1237 | p.prefixlen = stream_getc (client->ibuf); | |
1238 | p.prefix.s_addr = stream_get_ipv4 (client->ibuf); | |
1239 | ||
719e9741 | 1240 | return zsend_ipv4_import_lookup (client, &p); |
718e3744 | 1241 | } |
1242 | ||
1243 | #ifdef HAVE_IPV6 | |
8a92a8a0 DS |
1244 | /* Zebra server IPv6 prefix add function. */ |
1245 | static int | |
1246 | zread_ipv4_route_ipv6_nexthop_add (struct zserv *client, u_short length) | |
1247 | { | |
1248 | int i; | |
1249 | struct stream *s; | |
1250 | struct in6_addr nexthop; | |
1251 | struct rib *rib; | |
1252 | u_char message; | |
1253 | u_char nexthop_num; | |
1254 | u_char nexthop_type; | |
1255 | unsigned long ifindex; | |
1256 | struct prefix_ipv4 p; | |
1257 | u_char ifname_len; | |
1258 | safi_t safi; | |
1259 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1260 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1261 | int ret; | |
1262 | ||
1263 | /* Get input stream. */ | |
1264 | s = client->ibuf; | |
1265 | ||
1266 | ifindex = 0; | |
1267 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1268 | ||
1269 | /* Allocate new rib. */ | |
1270 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1271 | ||
1272 | /* Type, flags, message. */ | |
1273 | rib->type = stream_getc (s); | |
1274 | rib->instance = stream_getw (s); | |
1275 | rib->flags = stream_getc (s); | |
1276 | message = stream_getc (s); | |
1277 | safi = stream_getw (s); | |
1278 | rib->uptime = time (NULL); | |
1279 | ||
1280 | /* IPv4 prefix. */ | |
1281 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
1282 | p.family = AF_INET; | |
1283 | p.prefixlen = stream_getc (s); | |
1284 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1285 | ||
1286 | /* We need to give nh-addr, nh-ifindex with the same next-hop object | |
1287 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1288 | * these. Clients should send the same number of paired set of | |
1289 | * next-hop-addr/next-hop-ifindices. */ | |
1290 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
1291 | { | |
1292 | int nh_count = 0; | |
1293 | int if_count = 0; | |
1294 | int max_nh_if = 0; | |
1295 | ||
1296 | nexthop_num = stream_getc (s); | |
1297 | for (i = 0; i < nexthop_num; i++) | |
1298 | { | |
1299 | nexthop_type = stream_getc (s); | |
1300 | ||
1301 | switch (nexthop_type) | |
1302 | { | |
1303 | case ZEBRA_NEXTHOP_IPV6: | |
1304 | stream_get (&nexthop, s, 16); | |
1305 | if (nh_count < MULTIPATH_NUM) { | |
1306 | nexthops[nh_count++] = nexthop; | |
1307 | } | |
1308 | break; | |
1309 | case ZEBRA_NEXTHOP_IFINDEX: | |
1310 | if (if_count < MULTIPATH_NUM) { | |
1311 | ifindices[if_count++] = stream_getl (s); | |
1312 | } | |
1313 | break; | |
1314 | case ZEBRA_NEXTHOP_BLACKHOLE: | |
1315 | nexthop_blackhole_add (rib); | |
1316 | break; | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1321 | for (i = 0; i < max_nh_if; i++) | |
1322 | { | |
1323 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
1324 | if ((i < if_count) && ifindices[i]) { | |
1325 | nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); | |
1326 | } | |
1327 | else { | |
1328 | nexthop_ipv6_add (rib, &nexthops[i]); | |
1329 | } | |
1330 | } | |
1331 | else { | |
1332 | if ((i < if_count) && ifindices[i]) { | |
1333 | nexthop_ifindex_add (rib, ifindices[i]); | |
1334 | } | |
1335 | } | |
1336 | } | |
1337 | } | |
1338 | ||
1339 | /* Distance. */ | |
1340 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1341 | rib->distance = stream_getc (s); | |
1342 | ||
1343 | /* Metric. */ | |
1344 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1345 | rib->metric = stream_getl (s); | |
1346 | ||
1347 | /* Tag */ | |
1348 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1349 | rib->tag = stream_getw (s); | |
1350 | else | |
1351 | rib->tag = 0; | |
1352 | ||
1353 | /* Table */ | |
1354 | rib->table=zebrad.rtm_table_default; | |
1355 | ret = rib_add_ipv6_multipath ((struct prefix *)&p, rib, safi, ifindex); | |
1356 | /* Stats */ | |
1357 | if (ret > 0) | |
1358 | client->v4_route_add_cnt++; | |
1359 | else if (ret < 0) | |
1360 | client->v4_route_upd8_cnt++; | |
1361 | ||
1362 | return 0; | |
1363 | } | |
1364 | ||
718e3744 | 1365 | /* Zebra server IPv6 prefix add function. */ |
719e9741 | 1366 | static int |
718e3744 | 1367 | zread_ipv6_add (struct zserv *client, u_short length) |
1368 | { | |
1369 | int i; | |
1370 | struct stream *s; | |
718e3744 | 1371 | struct in6_addr nexthop; |
41fc2714 DS |
1372 | struct rib *rib; |
1373 | u_char message; | |
1374 | u_char nexthop_num; | |
1375 | u_char nexthop_type; | |
718e3744 | 1376 | unsigned long ifindex; |
1377 | struct prefix_ipv6 p; | |
41fc2714 DS |
1378 | safi_t safi; |
1379 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1380 | static unsigned int ifindices[MULTIPATH_NUM]; | |
04b02fda | 1381 | int ret; |
41fc2714 DS |
1382 | |
1383 | /* Get input stream. */ | |
718e3744 | 1384 | s = client->ibuf; |
41fc2714 | 1385 | |
718e3744 | 1386 | ifindex = 0; |
1387 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1388 | ||
41fc2714 DS |
1389 | /* Allocate new rib. */ |
1390 | rib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
1391 | ||
718e3744 | 1392 | /* Type, flags, message. */ |
41fc2714 | 1393 | rib->type = stream_getc (s); |
7c8ff89e | 1394 | rib->instance = stream_getw (s); |
41fc2714 DS |
1395 | rib->flags = stream_getc (s); |
1396 | message = stream_getc (s); | |
1397 | safi = stream_getw (s); | |
1398 | rib->uptime = time (NULL); | |
718e3744 | 1399 | |
41fc2714 | 1400 | /* IPv6 prefix. */ |
718e3744 | 1401 | memset (&p, 0, sizeof (struct prefix_ipv6)); |
1402 | p.family = AF_INET6; | |
1403 | p.prefixlen = stream_getc (s); | |
1404 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1405 | ||
41fc2714 DS |
1406 | /* We need to give nh-addr, nh-ifindex with the same next-hop object |
1407 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1408 | * these. Clients should send the same number of paired set of | |
1409 | * next-hop-addr/next-hop-ifindices. */ | |
1410 | if (CHECK_FLAG (message, ZAPI_MESSAGE_NEXTHOP)) | |
718e3744 | 1411 | { |
41fc2714 DS |
1412 | int nh_count = 0; |
1413 | int if_count = 0; | |
1414 | int max_nh_if = 0; | |
718e3744 | 1415 | |
41fc2714 DS |
1416 | nexthop_num = stream_getc (s); |
1417 | for (i = 0; i < nexthop_num; i++) | |
718e3744 | 1418 | { |
1419 | nexthop_type = stream_getc (s); | |
1420 | ||
1421 | switch (nexthop_type) | |
1422 | { | |
1423 | case ZEBRA_NEXTHOP_IPV6: | |
1424 | stream_get (&nexthop, s, 16); | |
41fc2714 DS |
1425 | if (nh_count < MULTIPATH_NUM) { |
1426 | nexthops[nh_count++] = nexthop; | |
1427 | } | |
718e3744 | 1428 | break; |
1429 | case ZEBRA_NEXTHOP_IFINDEX: | |
41fc2714 DS |
1430 | if (if_count < MULTIPATH_NUM) { |
1431 | ifindices[if_count++] = stream_getl (s); | |
1432 | } | |
718e3744 | 1433 | break; |
c3c0ac83 DS |
1434 | case ZEBRA_NEXTHOP_BLACKHOLE: |
1435 | nexthop_blackhole_add (rib); | |
1436 | break; | |
718e3744 | 1437 | } |
1438 | } | |
41fc2714 DS |
1439 | |
1440 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1441 | for (i = 0; i < max_nh_if; i++) | |
1442 | { | |
1443 | if ((i < nh_count) && !IN6_IS_ADDR_UNSPECIFIED (&nexthops[i])) { | |
1444 | if ((i < if_count) && ifindices[i]) { | |
1445 | if (rib_bogus_ipv6 (rib->type, &p, &nexthops[i], ifindices[i], 0)) { | |
1446 | continue; | |
1447 | } | |
1448 | nexthop_ipv6_ifindex_add (rib, &nexthops[i], ifindices[i]); | |
1449 | } | |
1450 | else { | |
1451 | if (rib_bogus_ipv6 (rib->type, &p, &nexthops[i], 0, 0)) { | |
1452 | continue; | |
1453 | } | |
1454 | nexthop_ipv6_add (rib, &nexthops[i]); | |
1455 | } | |
1456 | } | |
1457 | else { | |
1458 | if ((i < if_count) && ifindices[i]) { | |
1459 | if (rib_bogus_ipv6 (rib->type, &p, NULL, ifindices[i], 0)) { | |
1460 | continue; | |
1461 | } | |
1462 | nexthop_ifindex_add (rib, ifindices[i]); | |
1463 | } | |
1464 | } | |
1465 | } | |
718e3744 | 1466 | } |
1467 | ||
41fc2714 DS |
1468 | /* Distance. */ |
1469 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
1470 | rib->distance = stream_getc (s); | |
718e3744 | 1471 | |
41fc2714 DS |
1472 | /* Metric. */ |
1473 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) | |
1474 | rib->metric = stream_getl (s); | |
718e3744 | 1475 | |
0d9551dc DS |
1476 | /* Tag */ |
1477 | if (CHECK_FLAG (message, ZAPI_MESSAGE_TAG)) | |
1478 | rib->tag = stream_getw (s); | |
1479 | else | |
1480 | rib->tag = 0; | |
1481 | ||
41fc2714 DS |
1482 | /* Table */ |
1483 | rib->table=zebrad.rtm_table_default; | |
8a92a8a0 | 1484 | ret = rib_add_ipv6_multipath ((struct prefix *)&p, rib, safi, ifindex); |
04b02fda DS |
1485 | /* Stats */ |
1486 | if (ret > 0) | |
1487 | client->v6_route_add_cnt++; | |
1488 | else if (ret < 0) | |
1489 | client->v6_route_upd8_cnt++; | |
1490 | ||
719e9741 | 1491 | return 0; |
718e3744 | 1492 | } |
1493 | ||
1494 | /* Zebra server IPv6 prefix delete function. */ | |
719e9741 | 1495 | static int |
718e3744 | 1496 | zread_ipv6_delete (struct zserv *client, u_short length) |
1497 | { | |
1498 | int i; | |
1499 | struct stream *s; | |
1500 | struct zapi_ipv6 api; | |
1501 | struct in6_addr nexthop; | |
1502 | unsigned long ifindex; | |
1503 | struct prefix_ipv6 p; | |
1504 | ||
1505 | s = client->ibuf; | |
1506 | ifindex = 0; | |
1507 | memset (&nexthop, 0, sizeof (struct in6_addr)); | |
1508 | ||
1509 | /* Type, flags, message. */ | |
1510 | api.type = stream_getc (s); | |
7c8ff89e | 1511 | api.instance = stream_getw (s); |
718e3744 | 1512 | api.flags = stream_getc (s); |
1513 | api.message = stream_getc (s); | |
f768f367 | 1514 | api.safi = stream_getw (s); |
718e3744 | 1515 | |
1516 | /* IPv4 prefix. */ | |
1517 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1518 | p.family = AF_INET6; | |
1519 | p.prefixlen = stream_getc (s); | |
1520 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
1521 | ||
1522 | /* Nexthop, ifindex, distance, metric. */ | |
1523 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
1524 | { | |
1525 | u_char nexthop_type; | |
1526 | ||
1527 | api.nexthop_num = stream_getc (s); | |
1528 | for (i = 0; i < api.nexthop_num; i++) | |
1529 | { | |
1530 | nexthop_type = stream_getc (s); | |
1531 | ||
1532 | switch (nexthop_type) | |
1533 | { | |
1534 | case ZEBRA_NEXTHOP_IPV6: | |
1535 | stream_get (&nexthop, s, 16); | |
1536 | break; | |
1537 | case ZEBRA_NEXTHOP_IFINDEX: | |
1538 | ifindex = stream_getl (s); | |
1539 | break; | |
1540 | } | |
1541 | } | |
1542 | } | |
1543 | ||
0d9551dc | 1544 | /* Distance. */ |
718e3744 | 1545 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) |
1546 | api.distance = stream_getc (s); | |
1547 | else | |
1548 | api.distance = 0; | |
0d9551dc DS |
1549 | |
1550 | /* Metric. */ | |
718e3744 | 1551 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) |
1552 | api.metric = stream_getl (s); | |
1553 | else | |
1554 | api.metric = 0; | |
1555 | ||
0d9551dc DS |
1556 | /* tag */ |
1557 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) | |
1558 | api.tag = stream_getw (s); | |
1559 | else | |
1560 | api.tag = 0; | |
1561 | ||
718e3744 | 1562 | if (IN6_IS_ADDR_UNSPECIFIED (&nexthop)) |
7c8ff89e | 1563 | rib_delete_ipv6 (api.type, api.instance, api.flags, &p, NULL, ifindex, client->rtm_table, api.safi); |
718e3744 | 1564 | else |
7c8ff89e | 1565 | rib_delete_ipv6 (api.type, api.instance, api.flags, &p, &nexthop, ifindex, client->rtm_table, api.safi); |
04b02fda DS |
1566 | |
1567 | client->v6_route_del_cnt++; | |
719e9741 | 1568 | return 0; |
718e3744 | 1569 | } |
1570 | ||
719e9741 | 1571 | static int |
718e3744 | 1572 | zread_ipv6_nexthop_lookup (struct zserv *client, u_short length) |
1573 | { | |
1574 | struct in6_addr addr; | |
1575 | char buf[BUFSIZ]; | |
1576 | ||
1577 | stream_get (&addr, client->ibuf, 16); | |
a5207089 CF |
1578 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) |
1579 | zlog_debug("%s: looking up %s", __func__, | |
1580 | inet_ntop (AF_INET6, &addr, buf, BUFSIZ)); | |
718e3744 | 1581 | |
719e9741 | 1582 | return zsend_ipv6_nexthop_lookup (client, &addr); |
718e3744 | 1583 | } |
1584 | #endif /* HAVE_IPV6 */ | |
1585 | ||
18a6dce6 | 1586 | /* Register zebra server router-id information. Send current router-id */ |
719e9741 | 1587 | static int |
18a6dce6 | 1588 | zread_router_id_add (struct zserv *client, u_short length) |
1589 | { | |
1590 | struct prefix p; | |
1591 | ||
1592 | /* Router-id information is needed. */ | |
1593 | client->ridinfo = 1; | |
1594 | ||
1595 | router_id_get (&p); | |
1596 | ||
719e9741 | 1597 | return zsend_router_id_update (client,&p); |
18a6dce6 | 1598 | } |
1599 | ||
1600 | /* Unregister zebra server router-id information. */ | |
719e9741 | 1601 | static int |
18a6dce6 | 1602 | zread_router_id_delete (struct zserv *client, u_short length) |
1603 | { | |
1604 | client->ridinfo = 0; | |
719e9741 | 1605 | return 0; |
18a6dce6 | 1606 | } |
1607 | ||
2ea1ab1c VT |
1608 | /* Tie up route-type and client->sock */ |
1609 | static void | |
1610 | zread_hello (struct zserv *client) | |
1611 | { | |
1612 | /* type of protocol (lib/zebra.h) */ | |
1613 | u_char proto; | |
7c8ff89e DS |
1614 | u_short instance; |
1615 | ||
2ea1ab1c | 1616 | proto = stream_getc (client->ibuf); |
7c8ff89e | 1617 | instance = stream_getw (client->ibuf); |
2ea1ab1c VT |
1618 | |
1619 | /* accept only dynamic routing protocols */ | |
1620 | if ((proto < ZEBRA_ROUTE_MAX) | |
1621 | && (proto > ZEBRA_ROUTE_STATIC)) | |
1622 | { | |
1623 | zlog_notice ("client %d says hello and bids fair to announce only %s routes", | |
1624 | client->sock, zebra_route_string(proto)); | |
7c8ff89e DS |
1625 | if (instance) |
1626 | zlog_notice ("client protocol instance %d", instance); | |
2ea1ab1c | 1627 | |
fb018d25 | 1628 | client->proto = proto; |
7c8ff89e | 1629 | client->instance = instance; |
2ea1ab1c VT |
1630 | } |
1631 | } | |
1632 | ||
718e3744 | 1633 | /* Close zebra client. */ |
b9df2d25 | 1634 | static void |
718e3744 | 1635 | zebra_client_close (struct zserv *client) |
1636 | { | |
078430f6 DS |
1637 | zebra_cleanup_rnh_client(0, AF_INET, client, RNH_NEXTHOP_TYPE); |
1638 | zebra_cleanup_rnh_client(0, AF_INET6, client, RNH_NEXTHOP_TYPE); | |
1639 | zebra_cleanup_rnh_client(0, AF_INET, client, RNH_IMPORT_CHECK_TYPE); | |
1640 | zebra_cleanup_rnh_client(0, AF_INET6, client, RNH_IMPORT_CHECK_TYPE); | |
fb018d25 | 1641 | |
718e3744 | 1642 | /* Close file descriptor. */ |
1643 | if (client->sock) | |
1644 | { | |
7c8ff89e DS |
1645 | unsigned long nroutes; |
1646 | ||
718e3744 | 1647 | close (client->sock); |
7c8ff89e DS |
1648 | nroutes = rib_score_proto (client->proto, client->instance); |
1649 | zlog_notice ("client %d disconnected. %lu %s routes removed from the rib", | |
1650 | client->sock, nroutes, zebra_route_string (client->proto)); | |
718e3744 | 1651 | client->sock = -1; |
1652 | } | |
1653 | ||
1654 | /* Free stream buffers. */ | |
1655 | if (client->ibuf) | |
1656 | stream_free (client->ibuf); | |
1657 | if (client->obuf) | |
1658 | stream_free (client->obuf); | |
719e9741 | 1659 | if (client->wb) |
1660 | buffer_free(client->wb); | |
718e3744 | 1661 | |
1662 | /* Release threads. */ | |
1663 | if (client->t_read) | |
1664 | thread_cancel (client->t_read); | |
1665 | if (client->t_write) | |
1666 | thread_cancel (client->t_write); | |
719e9741 | 1667 | if (client->t_suicide) |
1668 | thread_cancel (client->t_suicide); | |
718e3744 | 1669 | |
1670 | /* Free client structure. */ | |
b21b19c5 | 1671 | listnode_delete (zebrad.client_list, client); |
718e3744 | 1672 | XFREE (0, client); |
1673 | } | |
1674 | ||
1675 | /* Make new client. */ | |
b9df2d25 | 1676 | static void |
718e3744 | 1677 | zebra_client_create (int sock) |
1678 | { | |
1679 | struct zserv *client; | |
1680 | ||
1681 | client = XCALLOC (0, sizeof (struct zserv)); | |
1682 | ||
1683 | /* Make client input/output buffer. */ | |
1684 | client->sock = sock; | |
1685 | client->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
1686 | client->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
719e9741 | 1687 | client->wb = buffer_new(0); |
718e3744 | 1688 | |
1689 | /* Set table number. */ | |
b21b19c5 | 1690 | client->rtm_table = zebrad.rtm_table_default; |
718e3744 | 1691 | |
04b02fda DS |
1692 | client->connect_time = quagga_time(NULL); |
1693 | ||
718e3744 | 1694 | /* Add this client to linked list. */ |
b21b19c5 | 1695 | listnode_add (zebrad.client_list, client); |
718e3744 | 1696 | |
1697 | /* Make new read thread. */ | |
1698 | zebra_event (ZEBRA_READ, sock, client); | |
1699 | } | |
1700 | ||
1701 | /* Handler of zebra service request. */ | |
b9df2d25 | 1702 | static int |
718e3744 | 1703 | zebra_client_read (struct thread *thread) |
1704 | { | |
1705 | int sock; | |
1706 | struct zserv *client; | |
57a1477b | 1707 | size_t already; |
c1b9800a | 1708 | uint16_t length, command; |
1709 | uint8_t marker, version; | |
718e3744 | 1710 | |
1711 | /* Get thread data. Reset reading thread because I'm running. */ | |
1712 | sock = THREAD_FD (thread); | |
1713 | client = THREAD_ARG (thread); | |
1714 | client->t_read = NULL; | |
1715 | ||
719e9741 | 1716 | if (client->t_suicide) |
718e3744 | 1717 | { |
719e9741 | 1718 | zebra_client_close(client); |
718e3744 | 1719 | return -1; |
1720 | } | |
719e9741 | 1721 | |
1722 | /* Read length and command (if we don't have it already). */ | |
57a1477b | 1723 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) |
719e9741 | 1724 | { |
57a1477b | 1725 | ssize_t nbyte; |
719e9741 | 1726 | if (((nbyte = stream_read_try (client->ibuf, sock, |
57a1477b | 1727 | ZEBRA_HEADER_SIZE-already)) == 0) || |
719e9741 | 1728 | (nbyte == -1)) |
1729 | { | |
1730 | if (IS_ZEBRA_DEBUG_EVENT) | |
1731 | zlog_debug ("connection closed socket [%d]", sock); | |
1732 | zebra_client_close (client); | |
1733 | return -1; | |
1734 | } | |
57a1477b | 1735 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE-already)) |
719e9741 | 1736 | { |
1737 | /* Try again later. */ | |
1738 | zebra_event (ZEBRA_READ, sock, client); | |
1739 | return 0; | |
1740 | } | |
57a1477b | 1741 | already = ZEBRA_HEADER_SIZE; |
719e9741 | 1742 | } |
1743 | ||
1744 | /* Reset to read from the beginning of the incoming packet. */ | |
1745 | stream_set_getp(client->ibuf, 0); | |
1746 | ||
c1b9800a | 1747 | /* Fetch header values */ |
718e3744 | 1748 | length = stream_getw (client->ibuf); |
c1b9800a | 1749 | marker = stream_getc (client->ibuf); |
1750 | version = stream_getc (client->ibuf); | |
1751 | command = stream_getw (client->ibuf); | |
718e3744 | 1752 | |
c1b9800a | 1753 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) |
1754 | { | |
1755 | zlog_err("%s: socket %d version mismatch, marker %d, version %d", | |
1756 | __func__, sock, marker, version); | |
1757 | zebra_client_close (client); | |
1758 | return -1; | |
1759 | } | |
719e9741 | 1760 | if (length < ZEBRA_HEADER_SIZE) |
718e3744 | 1761 | { |
57a1477b | 1762 | zlog_warn("%s: socket %d message length %u is less than header size %d", |
1763 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
1764 | zebra_client_close (client); | |
1765 | return -1; | |
1766 | } | |
1767 | if (length > STREAM_SIZE(client->ibuf)) | |
1768 | { | |
1769 | zlog_warn("%s: socket %d message length %u exceeds buffer size %lu", | |
1770 | __func__, sock, length, (u_long)STREAM_SIZE(client->ibuf)); | |
718e3744 | 1771 | zebra_client_close (client); |
1772 | return -1; | |
1773 | } | |
1774 | ||
718e3744 | 1775 | /* Read rest of data. */ |
57a1477b | 1776 | if (already < length) |
718e3744 | 1777 | { |
57a1477b | 1778 | ssize_t nbyte; |
1779 | if (((nbyte = stream_read_try (client->ibuf, sock, | |
1780 | length-already)) == 0) || | |
1781 | (nbyte == -1)) | |
718e3744 | 1782 | { |
1783 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1784 | zlog_debug ("connection closed [%d] when reading zebra data", sock); |
718e3744 | 1785 | zebra_client_close (client); |
1786 | return -1; | |
1787 | } | |
57a1477b | 1788 | if (nbyte != (ssize_t)(length-already)) |
719e9741 | 1789 | { |
1790 | /* Try again later. */ | |
1791 | zebra_event (ZEBRA_READ, sock, client); | |
1792 | return 0; | |
1793 | } | |
718e3744 | 1794 | } |
1795 | ||
719e9741 | 1796 | length -= ZEBRA_HEADER_SIZE; |
1797 | ||
718e3744 | 1798 | /* Debug packet information. */ |
1799 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 1800 | zlog_debug ("zebra message comes from socket [%d]", sock); |
718e3744 | 1801 | |
1802 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
b6178002 | 1803 | zlog_debug ("zebra message received [%s] %d", |
66859780 | 1804 | zserv_command_string (command), length); |
718e3744 | 1805 | |
04b02fda DS |
1806 | client->last_read_time = quagga_time(NULL); |
1807 | client->last_read_cmd = command; | |
1808 | ||
718e3744 | 1809 | switch (command) |
1810 | { | |
18a6dce6 | 1811 | case ZEBRA_ROUTER_ID_ADD: |
1812 | zread_router_id_add (client, length); | |
1813 | break; | |
1814 | case ZEBRA_ROUTER_ID_DELETE: | |
1815 | zread_router_id_delete (client, length); | |
1816 | break; | |
718e3744 | 1817 | case ZEBRA_INTERFACE_ADD: |
1818 | zread_interface_add (client, length); | |
1819 | break; | |
1820 | case ZEBRA_INTERFACE_DELETE: | |
1821 | zread_interface_delete (client, length); | |
1822 | break; | |
1823 | case ZEBRA_IPV4_ROUTE_ADD: | |
1824 | zread_ipv4_add (client, length); | |
1825 | break; | |
1826 | case ZEBRA_IPV4_ROUTE_DELETE: | |
1827 | zread_ipv4_delete (client, length); | |
1828 | break; | |
1829 | #ifdef HAVE_IPV6 | |
8a92a8a0 DS |
1830 | case ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD: |
1831 | zread_ipv4_route_ipv6_nexthop_add (client, length); | |
1832 | break; | |
718e3744 | 1833 | case ZEBRA_IPV6_ROUTE_ADD: |
1834 | zread_ipv6_add (client, length); | |
1835 | break; | |
1836 | case ZEBRA_IPV6_ROUTE_DELETE: | |
1837 | zread_ipv6_delete (client, length); | |
1838 | break; | |
1839 | #endif /* HAVE_IPV6 */ | |
1840 | case ZEBRA_REDISTRIBUTE_ADD: | |
1841 | zebra_redistribute_add (command, client, length); | |
1842 | break; | |
1843 | case ZEBRA_REDISTRIBUTE_DELETE: | |
1844 | zebra_redistribute_delete (command, client, length); | |
1845 | break; | |
1846 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
1847 | zebra_redistribute_default_add (command, client, length); | |
1848 | break; | |
1849 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
1850 | zebra_redistribute_default_delete (command, client, length); | |
1851 | break; | |
1852 | case ZEBRA_IPV4_NEXTHOP_LOOKUP: | |
1853 | zread_ipv4_nexthop_lookup (client, length); | |
1854 | break; | |
1855 | #ifdef HAVE_IPV6 | |
1856 | case ZEBRA_IPV6_NEXTHOP_LOOKUP: | |
1857 | zread_ipv6_nexthop_lookup (client, length); | |
1858 | break; | |
1859 | #endif /* HAVE_IPV6 */ | |
1860 | case ZEBRA_IPV4_IMPORT_LOOKUP: | |
1861 | zread_ipv4_import_lookup (client, length); | |
1862 | break; | |
2ea1ab1c VT |
1863 | case ZEBRA_HELLO: |
1864 | zread_hello (client); | |
1865 | break; | |
fb018d25 | 1866 | case ZEBRA_NEXTHOP_REGISTER: |
078430f6 | 1867 | zserv_rnh_register(client, sock, length, RNH_NEXTHOP_TYPE); |
fb018d25 DS |
1868 | break; |
1869 | case ZEBRA_NEXTHOP_UNREGISTER: | |
078430f6 DS |
1870 | zserv_rnh_unregister(client, sock, length, RNH_NEXTHOP_TYPE); |
1871 | break; | |
1872 | case ZEBRA_IMPORT_ROUTE_REGISTER: | |
1873 | zserv_rnh_register(client, sock, length, RNH_IMPORT_CHECK_TYPE); | |
1874 | break; | |
1875 | case ZEBRA_IMPORT_ROUTE_UNREGISTER: | |
1876 | zserv_rnh_unregister(client, sock, length, RNH_IMPORT_CHECK_TYPE); | |
fb018d25 | 1877 | break; |
c43ed2e4 DS |
1878 | case ZEBRA_BFD_DEST_UPDATE: |
1879 | case ZEBRA_BFD_DEST_REGISTER: | |
1880 | zebra_ptm_bfd_dst_register(client, sock, length, command); | |
1881 | break; | |
1882 | case ZEBRA_BFD_DEST_DEREGISTER: | |
1883 | zebra_ptm_bfd_dst_deregister(client, sock, length); | |
1884 | break; | |
718e3744 | 1885 | default: |
1886 | zlog_info ("Zebra received unknown command %d", command); | |
1887 | break; | |
1888 | } | |
1889 | ||
719e9741 | 1890 | if (client->t_suicide) |
1891 | { | |
1892 | /* No need to wait for thread callback, just kill immediately. */ | |
1893 | zebra_client_close(client); | |
1894 | return -1; | |
1895 | } | |
1896 | ||
718e3744 | 1897 | stream_reset (client->ibuf); |
1898 | zebra_event (ZEBRA_READ, sock, client); | |
718e3744 | 1899 | return 0; |
1900 | } | |
1901 | ||
718e3744 | 1902 | |
1903 | /* Accept code of zebra server socket. */ | |
b9df2d25 | 1904 | static int |
718e3744 | 1905 | zebra_accept (struct thread *thread) |
1906 | { | |
1907 | int accept_sock; | |
1908 | int client_sock; | |
1909 | struct sockaddr_in client; | |
1910 | socklen_t len; | |
1911 | ||
1912 | accept_sock = THREAD_FD (thread); | |
1913 | ||
719e9741 | 1914 | /* Reregister myself. */ |
1915 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1916 | ||
718e3744 | 1917 | len = sizeof (struct sockaddr_in); |
1918 | client_sock = accept (accept_sock, (struct sockaddr *) &client, &len); | |
1919 | ||
1920 | if (client_sock < 0) | |
1921 | { | |
6099b3b5 | 1922 | zlog_warn ("Can't accept zebra socket: %s", safe_strerror (errno)); |
718e3744 | 1923 | return -1; |
1924 | } | |
1925 | ||
ccf3557b | 1926 | /* Make client socket non-blocking. */ |
719e9741 | 1927 | set_nonblocking(client_sock); |
865b852c | 1928 | |
718e3744 | 1929 | /* Create new zebra client. */ |
1930 | zebra_client_create (client_sock); | |
1931 | ||
718e3744 | 1932 | return 0; |
1933 | } | |
1934 | ||
b9df2d25 | 1935 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 1936 | /* Make zebra's server socket. */ |
b9df2d25 | 1937 | static void |
718e3744 | 1938 | zebra_serv () |
1939 | { | |
1940 | int ret; | |
1941 | int accept_sock; | |
1942 | struct sockaddr_in addr; | |
1943 | ||
1944 | accept_sock = socket (AF_INET, SOCK_STREAM, 0); | |
1945 | ||
1946 | if (accept_sock < 0) | |
1947 | { | |
3d1dc857 | 1948 | zlog_warn ("Can't create zserv stream socket: %s", |
1949 | safe_strerror (errno)); | |
718e3744 | 1950 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1951 | return; | |
1952 | } | |
1953 | ||
1954 | memset (&addr, 0, sizeof (struct sockaddr_in)); | |
1955 | addr.sin_family = AF_INET; | |
1956 | addr.sin_port = htons (ZEBRA_PORT); | |
6f0e3f6e | 1957 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 1958 | addr.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 1959 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 1960 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
1961 | ||
1962 | sockopt_reuseaddr (accept_sock); | |
1963 | sockopt_reuseport (accept_sock); | |
1964 | ||
edd7c245 | 1965 | if ( zserv_privs.change(ZPRIVS_RAISE) ) |
1966 | zlog (NULL, LOG_ERR, "Can't raise privileges"); | |
1967 | ||
718e3744 | 1968 | ret = bind (accept_sock, (struct sockaddr *)&addr, |
1969 | sizeof (struct sockaddr_in)); | |
1970 | if (ret < 0) | |
1971 | { | |
3d1dc857 | 1972 | zlog_warn ("Can't bind to stream socket: %s", |
1973 | safe_strerror (errno)); | |
718e3744 | 1974 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1975 | close (accept_sock); /* Avoid sd leak. */ | |
1976 | return; | |
1977 | } | |
edd7c245 | 1978 | |
1979 | if ( zserv_privs.change(ZPRIVS_LOWER) ) | |
1980 | zlog (NULL, LOG_ERR, "Can't lower privileges"); | |
718e3744 | 1981 | |
1982 | ret = listen (accept_sock, 1); | |
1983 | if (ret < 0) | |
1984 | { | |
3d1dc857 | 1985 | zlog_warn ("Can't listen to stream socket: %s", |
1986 | safe_strerror (errno)); | |
718e3744 | 1987 | zlog_warn ("zebra can't provice full functionality due to above error"); |
1988 | close (accept_sock); /* Avoid sd leak. */ | |
1989 | return; | |
1990 | } | |
1991 | ||
1992 | zebra_event (ZEBRA_SERV, accept_sock, NULL); | |
1993 | } | |
b9df2d25 | 1994 | #endif /* HAVE_TCP_ZEBRA */ |
718e3744 | 1995 | |
1996 | /* For sockaddr_un. */ | |
1997 | #include <sys/un.h> | |
1998 | ||
1999 | /* zebra server UNIX domain socket. */ | |
b9df2d25 | 2000 | static void |
fce954f8 | 2001 | zebra_serv_un (const char *path) |
718e3744 | 2002 | { |
2003 | int ret; | |
2004 | int sock, len; | |
2005 | struct sockaddr_un serv; | |
2006 | mode_t old_mask; | |
2007 | ||
2008 | /* First of all, unlink existing socket */ | |
2009 | unlink (path); | |
2010 | ||
2011 | /* Set umask */ | |
2012 | old_mask = umask (0077); | |
2013 | ||
2014 | /* Make UNIX domain socket. */ | |
2015 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
2016 | if (sock < 0) | |
2017 | { | |
3d1dc857 | 2018 | zlog_warn ("Can't create zserv unix socket: %s", |
2019 | safe_strerror (errno)); | |
2020 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2021 | return; |
2022 | } | |
2023 | ||
2024 | /* Make server socket. */ | |
2025 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
2026 | serv.sun_family = AF_UNIX; | |
2027 | strncpy (serv.sun_path, path, strlen (path)); | |
6f0e3f6e | 2028 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 2029 | len = serv.sun_len = SUN_LEN(&serv); |
2030 | #else | |
2031 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 2032 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2033 | |
2034 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
2035 | if (ret < 0) | |
2036 | { | |
3d1dc857 | 2037 | zlog_warn ("Can't bind to unix socket %s: %s", |
2038 | path, safe_strerror (errno)); | |
2039 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2040 | close (sock); |
2041 | return; | |
2042 | } | |
2043 | ||
2044 | ret = listen (sock, 5); | |
2045 | if (ret < 0) | |
2046 | { | |
3d1dc857 | 2047 | zlog_warn ("Can't listen to unix socket %s: %s", |
2048 | path, safe_strerror (errno)); | |
2049 | zlog_warn ("zebra can't provide full functionality due to above error"); | |
718e3744 | 2050 | close (sock); |
2051 | return; | |
2052 | } | |
2053 | ||
2054 | umask (old_mask); | |
2055 | ||
2056 | zebra_event (ZEBRA_SERV, sock, NULL); | |
2057 | } | |
6b0655a2 | 2058 | |
718e3744 | 2059 | |
b9df2d25 | 2060 | static void |
718e3744 | 2061 | zebra_event (enum event event, int sock, struct zserv *client) |
2062 | { | |
2063 | switch (event) | |
2064 | { | |
2065 | case ZEBRA_SERV: | |
b21b19c5 | 2066 | thread_add_read (zebrad.master, zebra_accept, client, sock); |
718e3744 | 2067 | break; |
2068 | case ZEBRA_READ: | |
2069 | client->t_read = | |
b21b19c5 | 2070 | thread_add_read (zebrad.master, zebra_client_read, client, sock); |
718e3744 | 2071 | break; |
2072 | case ZEBRA_WRITE: | |
2073 | /**/ | |
2074 | break; | |
2075 | } | |
2076 | } | |
6b0655a2 | 2077 | |
04b02fda DS |
2078 | #define ZEBRA_TIME_BUF 32 |
2079 | static char * | |
2080 | zserv_time_buf(time_t *time1, char *buf, int buflen) | |
2081 | { | |
2082 | struct tm *tm; | |
2083 | time_t now; | |
2084 | ||
2085 | assert (buf != NULL); | |
2086 | assert (buflen >= ZEBRA_TIME_BUF); | |
2087 | assert (time1 != NULL); | |
2088 | ||
2089 | if (!*time1) | |
2090 | { | |
2091 | snprintf(buf, buflen, "never "); | |
2092 | return (buf); | |
2093 | } | |
2094 | ||
2095 | now = quagga_time(NULL); | |
2096 | now -= *time1; | |
2097 | tm = gmtime(&now); | |
2098 | ||
2099 | /* Making formatted timer strings. */ | |
2100 | #define ONE_DAY_SECOND 60*60*24 | |
2101 | #define ONE_WEEK_SECOND 60*60*24*7 | |
2102 | ||
2103 | if (now < ONE_DAY_SECOND) | |
2104 | snprintf (buf, buflen, "%02d:%02d:%02d", | |
2105 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
2106 | else if (now < ONE_WEEK_SECOND) | |
2107 | snprintf (buf, buflen, "%dd%02dh%02dm", | |
2108 | tm->tm_yday, tm->tm_hour, tm->tm_min); | |
2109 | else | |
2110 | snprintf (buf, buflen, "%02dw%dd%02dh", | |
2111 | tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); | |
2112 | return buf; | |
2113 | } | |
2114 | ||
2115 | static void | |
2116 | zebra_show_client_detail (struct vty *vty, struct zserv *client) | |
2117 | { | |
2118 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2119 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
2120 | ||
7c8ff89e DS |
2121 | vty_out (vty, "Client: %s", zebra_route_string(client->proto)); |
2122 | if (client->instance) | |
2123 | vty_out (vty, " Instance: %d", client->instance); | |
2124 | vty_out (vty, "%s", VTY_NEWLINE); | |
2125 | ||
04b02fda DS |
2126 | vty_out (vty, "------------------------ %s", VTY_NEWLINE); |
2127 | vty_out (vty, "FD: %d %s", client->sock, VTY_NEWLINE); | |
2128 | vty_out (vty, "Route Table ID: %d %s", client->rtm_table, VTY_NEWLINE); | |
2129 | ||
2130 | vty_out (vty, "Connect Time: %s %s", | |
2131 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2132 | VTY_NEWLINE); | |
2133 | if (client->nh_reg_time) | |
2134 | { | |
2135 | vty_out (vty, "Nexthop Registry Time: %s %s", | |
2136 | zserv_time_buf(&client->nh_reg_time, nhbuf, ZEBRA_TIME_BUF), | |
2137 | VTY_NEWLINE); | |
2138 | if (client->nh_last_upd_time) | |
2139 | vty_out (vty, "Nexthop Last Update Time: %s %s", | |
2140 | zserv_time_buf(&client->nh_last_upd_time, mbuf, ZEBRA_TIME_BUF), | |
2141 | VTY_NEWLINE); | |
2142 | else | |
2143 | vty_out (vty, "No Nexthop Update sent%s", VTY_NEWLINE); | |
2144 | } | |
2145 | else | |
2146 | vty_out (vty, "Not registered for Nexthop Updates%s", VTY_NEWLINE); | |
2147 | ||
2148 | vty_out (vty, "Last Msg Rx Time: %s %s", | |
2149 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2150 | VTY_NEWLINE); | |
2151 | vty_out (vty, "Last Msg Tx Time: %s %s", | |
2152 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2153 | VTY_NEWLINE); | |
2154 | if (client->last_read_time) | |
2155 | vty_out (vty, "Last Rcvd Cmd: %s %s", | |
2156 | zserv_command_string(client->last_read_cmd), VTY_NEWLINE); | |
2157 | if (client->last_write_time) | |
2158 | vty_out (vty, "Last Sent Cmd: %s %s", | |
2159 | zserv_command_string(client->last_write_cmd), VTY_NEWLINE); | |
2160 | vty_out (vty, "%s", VTY_NEWLINE); | |
2161 | ||
2162 | vty_out (vty, "Type Add Update Del %s", VTY_NEWLINE); | |
2163 | vty_out (vty, "================================================== %s", VTY_NEWLINE); | |
2164 | vty_out (vty, "IPv4 %-12d%-12d%-12d%s", client->v4_route_add_cnt, | |
2165 | client->v4_route_upd8_cnt, client->v4_route_del_cnt, VTY_NEWLINE); | |
2166 | vty_out (vty, "IPv6 %-12d%-12d%-12d%s", client->v6_route_add_cnt, | |
2167 | client->v6_route_upd8_cnt, client->v6_route_del_cnt, VTY_NEWLINE); | |
2168 | vty_out (vty, "Redist:v4 %-12d%-12d%-12d%s", client->redist_v4_add_cnt, 0, | |
2169 | client->redist_v4_del_cnt, VTY_NEWLINE); | |
2170 | vty_out (vty, "Redist:v6 %-12d%-12d%-12d%s", client->redist_v6_add_cnt, 0, | |
2171 | client->redist_v6_del_cnt, VTY_NEWLINE); | |
2172 | vty_out (vty, "Connected %-12d%-12d%-12d%s", client->ifadd_cnt, 0, | |
2173 | client->ifdel_cnt, VTY_NEWLINE); | |
c43ed2e4 DS |
2174 | vty_out (vty, "BFD peer %-12d%-12d%-12d%s", client->bfd_peer_add_cnt, |
2175 | client->bfd_peer_upd8_cnt, client->bfd_peer_del_cnt, VTY_NEWLINE); | |
04b02fda DS |
2176 | vty_out (vty, "Interface Up Notifications: %d%s", client->ifup_cnt, |
2177 | VTY_NEWLINE); | |
2178 | vty_out (vty, "Interface Down Notifications: %d%s", client->ifdown_cnt, | |
2179 | VTY_NEWLINE); | |
2180 | ||
2181 | vty_out (vty, "%s", VTY_NEWLINE); | |
2182 | return; | |
2183 | } | |
2184 | ||
2185 | static void | |
2186 | zebra_show_client_brief (struct vty *vty, struct zserv *client) | |
2187 | { | |
2188 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2189 | char wbuf[ZEBRA_TIME_BUF]; | |
2190 | ||
2191 | vty_out (vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d%s", | |
2192 | zebra_route_string(client->proto), | |
2193 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2194 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2195 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2196 | client->v4_route_add_cnt+client->v4_route_upd8_cnt, | |
2197 | client->v4_route_del_cnt, | |
2198 | client->v6_route_add_cnt+client->v6_route_upd8_cnt, | |
2199 | client->v6_route_del_cnt, VTY_NEWLINE); | |
2200 | ||
2201 | } | |
2202 | ||
2203 | ||
718e3744 | 2204 | /* Display default rtm_table for all clients. */ |
2205 | DEFUN (show_table, | |
2206 | show_table_cmd, | |
2207 | "show table", | |
2208 | SHOW_STR | |
2209 | "default routing table to use for all clients\n") | |
2210 | { | |
b21b19c5 | 2211 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, |
718e3744 | 2212 | VTY_NEWLINE); |
2213 | return CMD_SUCCESS; | |
2214 | } | |
2215 | ||
2216 | DEFUN (config_table, | |
2217 | config_table_cmd, | |
2218 | "table TABLENO", | |
2219 | "Configure target kernel routing table\n" | |
2220 | "TABLE integer\n") | |
2221 | { | |
b21b19c5 | 2222 | zebrad.rtm_table_default = strtol (argv[0], (char**)0, 10); |
718e3744 | 2223 | return CMD_SUCCESS; |
2224 | } | |
2225 | ||
647e4f1f | 2226 | DEFUN (ip_forwarding, |
2227 | ip_forwarding_cmd, | |
2228 | "ip forwarding", | |
2229 | IP_STR | |
2230 | "Turn on IP forwarding") | |
2231 | { | |
2232 | int ret; | |
2233 | ||
2234 | ret = ipforward (); | |
b71f00f2 | 2235 | if (ret == 0) |
2236 | ret = ipforward_on (); | |
647e4f1f | 2237 | |
647e4f1f | 2238 | if (ret == 0) |
2239 | { | |
2240 | vty_out (vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
2241 | return CMD_WARNING; | |
2242 | } | |
2243 | ||
2244 | return CMD_SUCCESS; | |
2245 | } | |
2246 | ||
718e3744 | 2247 | DEFUN (no_ip_forwarding, |
2248 | no_ip_forwarding_cmd, | |
2249 | "no ip forwarding", | |
2250 | NO_STR | |
2251 | IP_STR | |
2252 | "Turn off IP forwarding") | |
2253 | { | |
2254 | int ret; | |
2255 | ||
2256 | ret = ipforward (); | |
b71f00f2 | 2257 | if (ret != 0) |
2258 | ret = ipforward_off (); | |
718e3744 | 2259 | |
718e3744 | 2260 | if (ret != 0) |
2261 | { | |
2262 | vty_out (vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
2263 | return CMD_WARNING; | |
2264 | } | |
2265 | ||
2266 | return CMD_SUCCESS; | |
2267 | } | |
2268 | ||
2269 | /* This command is for debugging purpose. */ | |
2270 | DEFUN (show_zebra_client, | |
2271 | show_zebra_client_cmd, | |
2272 | "show zebra client", | |
2273 | SHOW_STR | |
2274 | "Zebra information" | |
2275 | "Client information") | |
2276 | { | |
52dc7ee6 | 2277 | struct listnode *node; |
718e3744 | 2278 | struct zserv *client; |
2279 | ||
1eb8ef25 | 2280 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) |
04b02fda DS |
2281 | zebra_show_client_detail(vty, client); |
2282 | ||
2283 | return CMD_SUCCESS; | |
2284 | } | |
2285 | ||
2286 | /* This command is for debugging purpose. */ | |
2287 | DEFUN (show_zebra_client_summary, | |
2288 | show_zebra_client_summary_cmd, | |
2289 | "show zebra client summary", | |
2290 | SHOW_STR | |
2291 | "Zebra information brief" | |
2292 | "Client information brief") | |
2293 | { | |
2294 | struct listnode *node; | |
2295 | struct zserv *client; | |
2296 | ||
2297 | vty_out (vty, "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes %s", | |
2298 | VTY_NEWLINE); | |
2299 | vty_out (vty,"--------------------------------------------------------------------------------%s", | |
2300 | VTY_NEWLINE); | |
2301 | ||
2302 | for (ALL_LIST_ELEMENTS_RO (zebrad.client_list, node, client)) | |
2303 | zebra_show_client_brief(vty, client); | |
fb018d25 | 2304 | |
04b02fda | 2305 | vty_out (vty, "Routes column shows (added+updated)/deleted%s", VTY_NEWLINE); |
718e3744 | 2306 | return CMD_SUCCESS; |
2307 | } | |
2308 | ||
2309 | /* Table configuration write function. */ | |
b9df2d25 | 2310 | static int |
718e3744 | 2311 | config_write_table (struct vty *vty) |
2312 | { | |
b21b19c5 | 2313 | if (zebrad.rtm_table_default) |
2314 | vty_out (vty, "table %d%s", zebrad.rtm_table_default, | |
718e3744 | 2315 | VTY_NEWLINE); |
2316 | return 0; | |
2317 | } | |
2318 | ||
2319 | /* table node for routing tables. */ | |
7fc626de | 2320 | static struct cmd_node table_node = |
718e3744 | 2321 | { |
2322 | TABLE_NODE, | |
2323 | "", /* This node has no interface. */ | |
2324 | 1 | |
2325 | }; | |
6b0655a2 | 2326 | |
718e3744 | 2327 | /* Only display ip forwarding is enabled or not. */ |
2328 | DEFUN (show_ip_forwarding, | |
2329 | show_ip_forwarding_cmd, | |
2330 | "show ip forwarding", | |
2331 | SHOW_STR | |
2332 | IP_STR | |
2333 | "IP forwarding status\n") | |
2334 | { | |
2335 | int ret; | |
2336 | ||
2337 | ret = ipforward (); | |
2338 | ||
2339 | if (ret == 0) | |
2340 | vty_out (vty, "IP forwarding is off%s", VTY_NEWLINE); | |
2341 | else | |
2342 | vty_out (vty, "IP forwarding is on%s", VTY_NEWLINE); | |
2343 | return CMD_SUCCESS; | |
2344 | } | |
2345 | ||
2346 | #ifdef HAVE_IPV6 | |
2347 | /* Only display ipv6 forwarding is enabled or not. */ | |
2348 | DEFUN (show_ipv6_forwarding, | |
2349 | show_ipv6_forwarding_cmd, | |
2350 | "show ipv6 forwarding", | |
2351 | SHOW_STR | |
2352 | "IPv6 information\n" | |
2353 | "Forwarding status\n") | |
2354 | { | |
2355 | int ret; | |
2356 | ||
2357 | ret = ipforward_ipv6 (); | |
2358 | ||
2359 | switch (ret) | |
2360 | { | |
2361 | case -1: | |
2362 | vty_out (vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
2363 | break; | |
2364 | case 0: | |
2365 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2366 | break; | |
2367 | case 1: | |
2368 | vty_out (vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
2369 | break; | |
2370 | default: | |
2371 | vty_out (vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2372 | break; | |
2373 | } | |
2374 | return CMD_SUCCESS; | |
2375 | } | |
2376 | ||
55906724 | 2377 | DEFUN (ipv6_forwarding, |
2378 | ipv6_forwarding_cmd, | |
2379 | "ipv6 forwarding", | |
2380 | IPV6_STR | |
2381 | "Turn on IPv6 forwarding") | |
2382 | { | |
2383 | int ret; | |
2384 | ||
41d3fc96 | 2385 | ret = ipforward_ipv6 (); |
b71f00f2 | 2386 | if (ret == 0) |
2387 | ret = ipforward_ipv6_on (); | |
41d3fc96 | 2388 | |
41d3fc96 | 2389 | if (ret == 0) |
55906724 | 2390 | { |
2391 | vty_out (vty, "Can't turn on IPv6 forwarding%s", VTY_NEWLINE); | |
2392 | return CMD_WARNING; | |
2393 | } | |
2394 | ||
2395 | return CMD_SUCCESS; | |
2396 | } | |
2397 | ||
718e3744 | 2398 | DEFUN (no_ipv6_forwarding, |
2399 | no_ipv6_forwarding_cmd, | |
2400 | "no ipv6 forwarding", | |
2401 | NO_STR | |
55906724 | 2402 | IPV6_STR |
2403 | "Turn off IPv6 forwarding") | |
718e3744 | 2404 | { |
2405 | int ret; | |
2406 | ||
41d3fc96 | 2407 | ret = ipforward_ipv6 (); |
b71f00f2 | 2408 | if (ret != 0) |
2409 | ret = ipforward_ipv6_off (); | |
41d3fc96 | 2410 | |
718e3744 | 2411 | if (ret != 0) |
2412 | { | |
2413 | vty_out (vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
2414 | return CMD_WARNING; | |
2415 | } | |
2416 | ||
2417 | return CMD_SUCCESS; | |
2418 | } | |
2419 | ||
2420 | #endif /* HAVE_IPV6 */ | |
2421 | ||
2422 | /* IPForwarding configuration write function. */ | |
719e9741 | 2423 | static int |
718e3744 | 2424 | config_write_forwarding (struct vty *vty) |
2425 | { | |
18a6dce6 | 2426 | /* FIXME: Find better place for that. */ |
2427 | router_id_write (vty); | |
2428 | ||
3e0b3a56 | 2429 | if (ipforward ()) |
2430 | vty_out (vty, "ip forwarding%s", VTY_NEWLINE); | |
718e3744 | 2431 | #ifdef HAVE_IPV6 |
3e0b3a56 | 2432 | if (ipforward_ipv6 ()) |
2433 | vty_out (vty, "ipv6 forwarding%s", VTY_NEWLINE); | |
718e3744 | 2434 | #endif /* HAVE_IPV6 */ |
2435 | vty_out (vty, "!%s", VTY_NEWLINE); | |
2436 | return 0; | |
2437 | } | |
2438 | ||
2439 | /* table node for routing tables. */ | |
7fc626de | 2440 | static struct cmd_node forwarding_node = |
718e3744 | 2441 | { |
2442 | FORWARDING_NODE, | |
2443 | "", /* This node has no interface. */ | |
2444 | 1 | |
2445 | }; | |
2446 | ||
6b0655a2 | 2447 | |
718e3744 | 2448 | /* Initialisation of zebra and installation of commands. */ |
2449 | void | |
a1ac18c4 | 2450 | zebra_init (void) |
718e3744 | 2451 | { |
2452 | /* Client list init. */ | |
b21b19c5 | 2453 | zebrad.client_list = list_new (); |
718e3744 | 2454 | |
718e3744 | 2455 | /* Install configuration write function. */ |
2456 | install_node (&table_node, config_write_table); | |
2457 | install_node (&forwarding_node, config_write_forwarding); | |
2458 | ||
2459 | install_element (VIEW_NODE, &show_ip_forwarding_cmd); | |
2460 | install_element (ENABLE_NODE, &show_ip_forwarding_cmd); | |
647e4f1f | 2461 | install_element (CONFIG_NODE, &ip_forwarding_cmd); |
718e3744 | 2462 | install_element (CONFIG_NODE, &no_ip_forwarding_cmd); |
2463 | install_element (ENABLE_NODE, &show_zebra_client_cmd); | |
04b02fda | 2464 | install_element (ENABLE_NODE, &show_zebra_client_summary_cmd); |
718e3744 | 2465 | |
2466 | #ifdef HAVE_NETLINK | |
2467 | install_element (VIEW_NODE, &show_table_cmd); | |
2468 | install_element (ENABLE_NODE, &show_table_cmd); | |
2469 | install_element (CONFIG_NODE, &config_table_cmd); | |
2470 | #endif /* HAVE_NETLINK */ | |
2471 | ||
2472 | #ifdef HAVE_IPV6 | |
2473 | install_element (VIEW_NODE, &show_ipv6_forwarding_cmd); | |
2474 | install_element (ENABLE_NODE, &show_ipv6_forwarding_cmd); | |
55906724 | 2475 | install_element (CONFIG_NODE, &ipv6_forwarding_cmd); |
718e3744 | 2476 | install_element (CONFIG_NODE, &no_ipv6_forwarding_cmd); |
2477 | #endif /* HAVE_IPV6 */ | |
7514fb77 PJ |
2478 | |
2479 | /* Route-map */ | |
2480 | zebra_route_map_init (); | |
718e3744 | 2481 | } |
97be79f9 DO |
2482 | |
2483 | /* Make zebra server socket, wiping any existing one (see bug #403). */ | |
2484 | void | |
b5114685 | 2485 | zebra_zserv_socket_init (char *path) |
97be79f9 DO |
2486 | { |
2487 | #ifdef HAVE_TCP_ZEBRA | |
2488 | zebra_serv (); | |
2489 | #else | |
b5114685 | 2490 | zebra_serv_un (path ? path : ZEBRA_SERV_PATH); |
97be79f9 DO |
2491 | #endif /* HAVE_TCP_ZEBRA */ |
2492 | } |