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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 | * | |
896014f4 DL |
16 | * You should have received a copy of the GNU General Public License along |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "prefix.h" | |
24 | #include "command.h" | |
25 | #include "if.h" | |
26 | #include "thread.h" | |
27 | #include "stream.h" | |
28 | #include "memory.h" | |
4a1ab8e4 | 29 | #include "zebra_memory.h" |
718e3744 | 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" |
ce549947 | 54 | #include "zebra/zebra_mpls.h" |
e3be0432 | 55 | #include "zebra/zebra_mroute.h" |
fea12efb | 56 | #include "zebra/label_manager.h" |
13d60d35 | 57 | #include "zebra/zebra_vxlan.h" |
e0ae31b8 | 58 | #include "zebra/rt.h" |
6b0655a2 | 59 | |
718e3744 | 60 | /* Event list of zebra. */ |
61 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
62 | ||
d62a17ae | 63 | static void zebra_event(enum event event, int sock, struct zserv *client); |
ccf3557b | 64 | |
edd7c245 | 65 | extern struct zebra_privs_t zserv_privs; |
6b0655a2 | 66 | |
d62a17ae | 67 | static void zebra_client_close(struct zserv *client); |
68 | ||
69 | static int zserv_delayed_close(struct thread *thread) | |
70 | { | |
71 | struct zserv *client = THREAD_ARG(thread); | |
72 | ||
73 | client->t_suicide = NULL; | |
74 | zebra_client_close(client); | |
75 | return 0; | |
76 | } | |
77 | ||
78 | static int zserv_flush_data(struct thread *thread) | |
79 | { | |
80 | struct zserv *client = THREAD_ARG(thread); | |
81 | ||
82 | client->t_write = NULL; | |
83 | if (client->t_suicide) { | |
84 | zebra_client_close(client); | |
85 | return -1; | |
86 | } | |
87 | switch (buffer_flush_available(client->wb, client->sock)) { | |
88 | case BUFFER_ERROR: | |
89 | zlog_warn( | |
90 | "%s: buffer_flush_available failed on zserv client fd %d, " | |
91 | "closing", | |
92 | __func__, client->sock); | |
93 | zebra_client_close(client); | |
94 | client = NULL; | |
95 | break; | |
96 | case BUFFER_PENDING: | |
97 | client->t_write = NULL; | |
98 | thread_add_write(zebrad.master, zserv_flush_data, client, | |
99 | client->sock, &client->t_write); | |
100 | break; | |
101 | case BUFFER_EMPTY: | |
102 | break; | |
103 | } | |
104 | ||
105 | if (client) | |
106 | client->last_write_time = monotime(NULL); | |
107 | return 0; | |
108 | } | |
109 | ||
110 | int zebra_server_send_message(struct zserv *client) | |
111 | { | |
112 | if (client->t_suicide) | |
113 | return -1; | |
114 | ||
115 | if (client->is_synchronous) | |
116 | return 0; | |
117 | ||
118 | stream_set_getp(client->obuf, 0); | |
119 | client->last_write_cmd = stream_getw_from(client->obuf, 6); | |
120 | switch (buffer_write(client->wb, client->sock, | |
121 | STREAM_DATA(client->obuf), | |
122 | stream_get_endp(client->obuf))) { | |
123 | case BUFFER_ERROR: | |
124 | zlog_warn( | |
125 | "%s: buffer_write failed to zserv client fd %d, closing", | |
126 | __func__, client->sock); | |
127 | /* Schedule a delayed close since many of the functions that | |
128 | call this | |
129 | one do not check the return code. They do not allow for the | |
130 | possibility that an I/O error may have caused the client to | |
131 | be | |
132 | deleted. */ | |
133 | client->t_suicide = NULL; | |
134 | thread_add_event(zebrad.master, zserv_delayed_close, client, 0, | |
135 | &client->t_suicide); | |
136 | return -1; | |
137 | case BUFFER_EMPTY: | |
138 | THREAD_OFF(client->t_write); | |
139 | break; | |
140 | case BUFFER_PENDING: | |
141 | thread_add_write(zebrad.master, zserv_flush_data, client, | |
142 | client->sock, &client->t_write); | |
143 | break; | |
144 | } | |
145 | ||
146 | client->last_write_time = monotime(NULL); | |
147 | return 0; | |
148 | } | |
149 | ||
150 | void zserv_create_header(struct stream *s, uint16_t cmd, vrf_id_t vrf_id) | |
151 | { | |
152 | /* length placeholder, caller can update */ | |
153 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
154 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
155 | stream_putc(s, ZSERV_VERSION); | |
156 | stream_putw(s, vrf_id); | |
157 | stream_putw(s, cmd); | |
158 | } | |
159 | ||
160 | static void zserv_encode_interface(struct stream *s, struct interface *ifp) | |
161 | { | |
162 | /* Interface information. */ | |
163 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
164 | stream_putl(s, ifp->ifindex); | |
165 | stream_putc(s, ifp->status); | |
166 | stream_putq(s, ifp->flags); | |
167 | stream_putc(s, ifp->ptm_enable); | |
168 | stream_putc(s, ifp->ptm_status); | |
169 | stream_putl(s, ifp->metric); | |
170 | stream_putl(s, ifp->speed); | |
171 | stream_putl(s, ifp->mtu); | |
172 | stream_putl(s, ifp->mtu6); | |
173 | stream_putl(s, ifp->bandwidth); | |
174 | stream_putl(s, ifp->ll_type); | |
175 | stream_putl(s, ifp->hw_addr_len); | |
176 | if (ifp->hw_addr_len) | |
177 | stream_put(s, ifp->hw_addr, ifp->hw_addr_len); | |
178 | ||
179 | /* Then, Traffic Engineering parameters if any */ | |
180 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { | |
181 | stream_putc(s, 1); | |
182 | zebra_interface_link_params_write(s, ifp); | |
183 | } else | |
184 | stream_putc(s, 0); | |
185 | ||
186 | /* Write packet size. */ | |
187 | stream_putw_at(s, 0, stream_get_endp(s)); | |
188 | } | |
189 | ||
190 | static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) | |
191 | { | |
192 | struct vrf_data data; | |
193 | ||
194 | data.l.table_id = zvrf->table_id; | |
195 | /* Pass the tableid */ | |
196 | stream_put(s, &data, sizeof(struct vrf_data)); | |
197 | /* Interface information. */ | |
198 | stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); | |
199 | ||
200 | /* Write packet size. */ | |
201 | stream_putw_at(s, 0, stream_get_endp(s)); | |
12f6fb97 DS |
202 | } |
203 | ||
718e3744 | 204 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 205 | /* |
206 | * This function is called in the following situations: | |
207 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
208 | * from the client. | |
209 | * - at startup, when zebra figures out the available interfaces | |
210 | * - when an interface is added (where support for | |
211 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
212 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
213 | * received) | |
214 | */ | |
d62a17ae | 215 | int zsend_interface_add(struct zserv *client, struct interface *ifp) |
718e3744 | 216 | { |
d62a17ae | 217 | struct stream *s; |
718e3744 | 218 | |
d62a17ae | 219 | s = client->obuf; |
220 | stream_reset(s); | |
718e3744 | 221 | |
d62a17ae | 222 | zserv_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); |
223 | zserv_encode_interface(s, ifp); | |
718e3744 | 224 | |
d62a17ae | 225 | client->ifadd_cnt++; |
226 | return zebra_server_send_message(client); | |
718e3744 | 227 | } |
228 | ||
229 | /* Interface deletion from zebra daemon. */ | |
d62a17ae | 230 | int zsend_interface_delete(struct zserv *client, struct interface *ifp) |
718e3744 | 231 | { |
d62a17ae | 232 | struct stream *s; |
718e3744 | 233 | |
d62a17ae | 234 | s = client->obuf; |
235 | stream_reset(s); | |
718e3744 | 236 | |
d62a17ae | 237 | zserv_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); |
238 | zserv_encode_interface(s, ifp); | |
718e3744 | 239 | |
d62a17ae | 240 | client->ifdel_cnt++; |
241 | return zebra_server_send_message(client); | |
718e3744 | 242 | } |
243 | ||
d62a17ae | 244 | int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 | 245 | { |
d62a17ae | 246 | struct stream *s; |
12f6fb97 | 247 | |
d62a17ae | 248 | s = client->obuf; |
249 | stream_reset(s); | |
12f6fb97 | 250 | |
d62a17ae | 251 | zserv_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); |
252 | zserv_encode_vrf(s, zvrf); | |
12f6fb97 | 253 | |
d62a17ae | 254 | client->vrfadd_cnt++; |
255 | return zebra_server_send_message(client); | |
12f6fb97 DS |
256 | } |
257 | ||
258 | /* VRF deletion from zebra daemon. */ | |
d62a17ae | 259 | int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 | 260 | { |
d62a17ae | 261 | struct stream *s; |
12f6fb97 | 262 | |
d62a17ae | 263 | s = client->obuf; |
264 | stream_reset(s); | |
12f6fb97 | 265 | |
d62a17ae | 266 | zserv_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); |
267 | zserv_encode_vrf(s, zvrf); | |
12f6fb97 | 268 | |
d62a17ae | 269 | client->vrfdel_cnt++; |
270 | return zebra_server_send_message(client); | |
12f6fb97 DS |
271 | } |
272 | ||
d62a17ae | 273 | int zsend_interface_link_params(struct zserv *client, struct interface *ifp) |
16f1b9ee | 274 | { |
d62a17ae | 275 | struct stream *s; |
16f1b9ee | 276 | |
d62a17ae | 277 | /* Check this client need interface information. */ |
278 | if (!client->ifinfo) | |
279 | return 0; | |
16f1b9ee | 280 | |
d62a17ae | 281 | if (!ifp->link_params) |
282 | return 0; | |
283 | s = client->obuf; | |
284 | stream_reset(s); | |
16f1b9ee | 285 | |
d62a17ae | 286 | zserv_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); |
16f1b9ee | 287 | |
d62a17ae | 288 | /* Add Interface Index */ |
289 | stream_putl(s, ifp->ifindex); | |
16f1b9ee | 290 | |
d62a17ae | 291 | /* Then TE Link Parameters */ |
292 | if (zebra_interface_link_params_write(s, ifp) == 0) | |
293 | return 0; | |
16f1b9ee | 294 | |
d62a17ae | 295 | /* Write packet size. */ |
296 | stream_putw_at(s, 0, stream_get_endp(s)); | |
16f1b9ee | 297 | |
d62a17ae | 298 | return zebra_server_send_message(client); |
16f1b9ee OD |
299 | } |
300 | ||
b9df2d25 | 301 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
d62a17ae | 302 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. |
b9df2d25 | 303 | * |
304 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
305 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
306 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
307 | * sent from zebra to the client | |
308 | * - redistribute new address info to all clients in the following situations | |
309 | * - at startup, when zebra figures out the available interfaces | |
310 | * - when an interface is added (where support for | |
311 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
312 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
313 | * received) | |
314 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
315 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
316 | * - when an RTM_NEWADDR message is received from the kernel, | |
d62a17ae | 317 | * |
318 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
b9df2d25 | 319 | * |
320 | * zsend_interface_address(DELETE) | |
d62a17ae | 321 | * ^ |
322 | * | | |
323 | * zebra_interface_address_delete_update | |
b9df2d25 | 324 | * ^ ^ ^ |
6eb8827d | 325 | * | | if_delete_update |
326 | * | | | |
b9df2d25 | 327 | * ip_address_uninstall connected_delete_ipv4 |
328 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
329 | * ^ ^ | |
330 | * | | | |
331 | * | RTM_NEWADDR on routing/netlink socket | |
332 | * | | |
333 | * vty commands: | |
334 | * "no ip address A.B.C.D/M [label LINE]" | |
335 | * "no ip address A.B.C.D/M secondary" | |
336 | * ["no ipv6 address X:X::X:X/M"] | |
337 | * | |
338 | */ | |
d62a17ae | 339 | int zsend_interface_address(int cmd, struct zserv *client, |
340 | struct interface *ifp, struct connected *ifc) | |
341 | { | |
342 | int blen; | |
343 | struct stream *s; | |
344 | struct prefix *p; | |
345 | ||
346 | s = client->obuf; | |
347 | stream_reset(s); | |
348 | ||
349 | zserv_create_header(s, cmd, ifp->vrf_id); | |
350 | stream_putl(s, ifp->ifindex); | |
351 | ||
352 | /* Interface address flag. */ | |
353 | stream_putc(s, ifc->flags); | |
354 | ||
355 | /* Prefix information. */ | |
356 | p = ifc->address; | |
357 | stream_putc(s, p->family); | |
358 | blen = prefix_blen(p); | |
359 | stream_put(s, &p->u.prefix, blen); | |
360 | ||
361 | /* | |
362 | * XXX gnu version does not send prefixlen for | |
363 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
364 | * but zebra_interface_address_delete_read() in the gnu version | |
365 | * expects to find it | |
366 | */ | |
367 | stream_putc(s, p->prefixlen); | |
368 | ||
369 | /* Destination. */ | |
370 | p = ifc->destination; | |
371 | if (p) | |
372 | stream_put(s, &p->u.prefix, blen); | |
373 | else | |
374 | stream_put(s, NULL, blen); | |
718e3744 | 375 | |
d62a17ae | 376 | /* Write packet size. */ |
377 | stream_putw_at(s, 0, stream_get_endp(s)); | |
718e3744 | 378 | |
d62a17ae | 379 | client->connected_rt_add_cnt++; |
380 | return zebra_server_send_message(client); | |
718e3744 | 381 | } |
382 | ||
d62a17ae | 383 | static int zsend_interface_nbr_address(int cmd, struct zserv *client, |
384 | struct interface *ifp, | |
385 | struct nbr_connected *ifc) | |
a80beece | 386 | { |
d62a17ae | 387 | int blen; |
388 | struct stream *s; | |
389 | struct prefix *p; | |
a80beece | 390 | |
d62a17ae | 391 | s = client->obuf; |
392 | stream_reset(s); | |
a80beece | 393 | |
d62a17ae | 394 | zserv_create_header(s, cmd, ifp->vrf_id); |
395 | stream_putl(s, ifp->ifindex); | |
a80beece | 396 | |
d62a17ae | 397 | /* Prefix information. */ |
398 | p = ifc->address; | |
399 | stream_putc(s, p->family); | |
400 | blen = prefix_blen(p); | |
401 | stream_put(s, &p->u.prefix, blen); | |
a80beece | 402 | |
d62a17ae | 403 | /* |
404 | * XXX gnu version does not send prefixlen for | |
405 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
406 | * but zebra_interface_address_delete_read() in the gnu version | |
407 | * expects to find it | |
408 | */ | |
409 | stream_putc(s, p->prefixlen); | |
a80beece | 410 | |
d62a17ae | 411 | /* Write packet size. */ |
412 | stream_putw_at(s, 0, stream_get_endp(s)); | |
a80beece | 413 | |
d62a17ae | 414 | return zebra_server_send_message(client); |
a80beece DS |
415 | } |
416 | ||
417 | /* Interface address addition. */ | |
d62a17ae | 418 | static void zebra_interface_nbr_address_add_update(struct interface *ifp, |
419 | struct nbr_connected *ifc) | |
420 | { | |
421 | struct listnode *node, *nnode; | |
422 | struct zserv *client; | |
423 | struct prefix *p; | |
424 | ||
425 | if (IS_ZEBRA_DEBUG_EVENT) { | |
426 | char buf[INET6_ADDRSTRLEN]; | |
427 | ||
428 | p = ifc->address; | |
429 | zlog_debug( | |
430 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
431 | inet_ntop(p->family, &p->u.prefix, buf, | |
432 | INET6_ADDRSTRLEN), | |
433 | p->prefixlen, ifc->ifp->name); | |
434 | } | |
a80beece | 435 | |
d62a17ae | 436 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) |
437 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
438 | client, ifp, ifc); | |
a80beece DS |
439 | } |
440 | ||
441 | /* Interface address deletion. */ | |
d62a17ae | 442 | static void zebra_interface_nbr_address_delete_update(struct interface *ifp, |
443 | struct nbr_connected *ifc) | |
444 | { | |
445 | struct listnode *node, *nnode; | |
446 | struct zserv *client; | |
447 | struct prefix *p; | |
448 | ||
449 | if (IS_ZEBRA_DEBUG_EVENT) { | |
450 | char buf[INET6_ADDRSTRLEN]; | |
451 | ||
452 | p = ifc->address; | |
453 | zlog_debug( | |
454 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
455 | inet_ntop(p->family, &p->u.prefix, buf, | |
456 | INET6_ADDRSTRLEN), | |
457 | p->prefixlen, ifc->ifp->name); | |
458 | } | |
a80beece | 459 | |
d62a17ae | 460 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) |
461 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, | |
462 | client, ifp, ifc); | |
a80beece DS |
463 | } |
464 | ||
c8e264b6 | 465 | /* Send addresses on interface to client */ |
d62a17ae | 466 | int zsend_interface_addresses(struct zserv *client, struct interface *ifp) |
c8e264b6 | 467 | { |
d62a17ae | 468 | struct listnode *cnode, *cnnode; |
469 | struct connected *c; | |
470 | struct nbr_connected *nc; | |
c8e264b6 | 471 | |
d62a17ae | 472 | /* Send interface addresses. */ |
473 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
474 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
475 | continue; | |
c8e264b6 | 476 | |
d62a17ae | 477 | if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, |
478 | ifp, c) | |
479 | < 0) | |
480 | return -1; | |
481 | } | |
c8e264b6 | 482 | |
d62a17ae | 483 | /* Send interface neighbors. */ |
484 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { | |
485 | if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
486 | client, ifp, nc) | |
487 | < 0) | |
488 | return -1; | |
489 | } | |
c8e264b6 | 490 | |
d62a17ae | 491 | return 0; |
c8e264b6 | 492 | } |
493 | ||
494 | /* Notify client about interface moving from one VRF to another. | |
495 | * Whether client is interested in old and new VRF is checked by caller. | |
496 | */ | |
d62a17ae | 497 | int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, |
498 | vrf_id_t vrf_id) | |
c8e264b6 | 499 | { |
d62a17ae | 500 | struct stream *s; |
c8e264b6 | 501 | |
d62a17ae | 502 | s = client->obuf; |
503 | stream_reset(s); | |
c8e264b6 | 504 | |
d62a17ae | 505 | zserv_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); |
c8e264b6 | 506 | |
d62a17ae | 507 | /* Fill in the ifIndex of the interface and its new VRF (id) */ |
508 | stream_putl(s, ifp->ifindex); | |
509 | stream_putw(s, vrf_id); | |
c8e264b6 | 510 | |
d62a17ae | 511 | /* Write packet size. */ |
512 | stream_putw_at(s, 0, stream_get_endp(s)); | |
c8e264b6 | 513 | |
d62a17ae | 514 | client->if_vrfchg_cnt++; |
515 | return zebra_server_send_message(client); | |
c8e264b6 | 516 | } |
517 | ||
1d20ccf3 | 518 | /* Add new nbr connected IPv6 address */ |
d62a17ae | 519 | void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) |
a80beece | 520 | { |
d62a17ae | 521 | struct nbr_connected *ifc; |
522 | struct prefix p; | |
a80beece | 523 | |
d62a17ae | 524 | p.family = AF_INET6; |
525 | IPV6_ADDR_COPY(&p.u.prefix, address); | |
526 | p.prefixlen = IPV6_MAX_PREFIXLEN; | |
a80beece | 527 | |
d62a17ae | 528 | if (!(ifc = listnode_head(ifp->nbr_connected))) { |
529 | /* new addition */ | |
530 | ifc = nbr_connected_new(); | |
531 | ifc->address = prefix_new(); | |
532 | ifc->ifp = ifp; | |
533 | listnode_add(ifp->nbr_connected, ifc); | |
534 | } | |
a80beece | 535 | |
d62a17ae | 536 | prefix_copy(ifc->address, &p); |
a80beece | 537 | |
d62a17ae | 538 | zebra_interface_nbr_address_add_update(ifp, ifc); |
5c610faf | 539 | |
d62a17ae | 540 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); |
a80beece DS |
541 | } |
542 | ||
d62a17ae | 543 | void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) |
a80beece | 544 | { |
d62a17ae | 545 | struct nbr_connected *ifc; |
546 | struct prefix p; | |
a80beece | 547 | |
d62a17ae | 548 | p.family = AF_INET6; |
549 | IPV6_ADDR_COPY(&p.u.prefix, address); | |
550 | p.prefixlen = IPV6_MAX_PREFIXLEN; | |
a80beece | 551 | |
d62a17ae | 552 | ifc = nbr_connected_check(ifp, &p); |
553 | if (!ifc) | |
554 | return; | |
a80beece | 555 | |
d62a17ae | 556 | listnode_delete(ifp->nbr_connected, ifc); |
a80beece | 557 | |
d62a17ae | 558 | zebra_interface_nbr_address_delete_update(ifp, ifc); |
a80beece | 559 | |
d62a17ae | 560 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); |
5c610faf | 561 | |
d62a17ae | 562 | nbr_connected_free(ifc); |
a80beece DS |
563 | } |
564 | ||
b9df2d25 | 565 | /* |
566 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
567 | * ZEBRA_INTERFACE_DOWN. | |
568 | * | |
569 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
570 | * the clients in one of 2 situations: | |
571 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
572 | * - a vty command modifying the bandwidth of an interface is received. | |
573 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
574 | */ | |
d62a17ae | 575 | int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 576 | { |
d62a17ae | 577 | struct stream *s; |
718e3744 | 578 | |
d62a17ae | 579 | s = client->obuf; |
580 | stream_reset(s); | |
718e3744 | 581 | |
d62a17ae | 582 | zserv_create_header(s, cmd, ifp->vrf_id); |
583 | zserv_encode_interface(s, ifp); | |
718e3744 | 584 | |
d62a17ae | 585 | if (cmd == ZEBRA_INTERFACE_UP) |
586 | client->ifup_cnt++; | |
587 | else | |
588 | client->ifdown_cnt++; | |
04b02fda | 589 | |
d62a17ae | 590 | return zebra_server_send_message(client); |
718e3744 | 591 | } |
592 | ||
b9df2d25 | 593 | /* |
5048fe14 | 594 | * This is the new function to announce and withdraw redistributed routes, used |
595 | * by Zebra. This is the old zsend_route_multipath() function. That function | |
596 | * was duplicating code to send a lot of information that was essentially thrown | |
597 | * away or ignored by the receiver. This is the leaner function that is not a | |
598 | * duplicate of the zapi_ipv4_route_add/del. | |
b9df2d25 | 599 | * |
d62a17ae | 600 | * The primary difference is that this function merely sends a single NH instead |
601 | * of | |
5048fe14 | 602 | * all the nexthops. |
b9df2d25 | 603 | */ |
d62a17ae | 604 | int zsend_redistribute_route(int add, struct zserv *client, struct prefix *p, |
605 | struct prefix *src_p, struct route_entry *re) | |
606 | { | |
607 | afi_t afi; | |
608 | int cmd; | |
609 | int psize; | |
610 | struct stream *s; | |
611 | struct nexthop *nexthop; | |
612 | unsigned long nhnummark = 0, messmark = 0; | |
613 | int nhnum = 0; | |
614 | u_char zapi_flags = 0; | |
615 | struct nexthop dummy_nh; | |
616 | ||
617 | afi = family2afi(p->family); | |
618 | if (add) { | |
619 | switch (afi) { | |
620 | case AFI_IP: | |
621 | cmd = ZEBRA_REDISTRIBUTE_IPV4_ADD; | |
622 | client->redist_v4_add_cnt++; | |
623 | break; | |
624 | case AFI_IP6: | |
625 | cmd = ZEBRA_REDISTRIBUTE_IPV6_ADD; | |
626 | client->redist_v6_add_cnt++; | |
627 | break; | |
628 | default: | |
629 | return -1; | |
630 | } | |
631 | } else { | |
632 | switch (afi) { | |
633 | case AFI_IP: | |
634 | cmd = ZEBRA_REDISTRIBUTE_IPV4_DEL; | |
635 | client->redist_v4_del_cnt++; | |
636 | break; | |
637 | case AFI_IP6: | |
638 | cmd = ZEBRA_REDISTRIBUTE_IPV6_DEL; | |
639 | client->redist_v6_del_cnt++; | |
640 | break; | |
641 | default: | |
642 | return -1; | |
643 | } | |
5048fe14 | 644 | } |
645 | ||
d62a17ae | 646 | s = client->obuf; |
647 | stream_reset(s); | |
648 | memset(&dummy_nh, 0, sizeof(struct nexthop)); | |
10fbd59a | 649 | |
d62a17ae | 650 | zserv_create_header(s, cmd, re->vrf_id); |
651 | ||
652 | /* Put type and nexthop. */ | |
653 | stream_putc(s, re->type); | |
654 | stream_putw(s, re->instance); | |
655 | stream_putl(s, re->flags); | |
656 | ||
657 | /* marker for message flags field */ | |
658 | messmark = stream_get_endp(s); | |
659 | stream_putc(s, 0); | |
660 | ||
661 | /* Prefix. */ | |
662 | psize = PSIZE(p->prefixlen); | |
663 | stream_putc(s, p->prefixlen); | |
664 | stream_write(s, (u_char *)&p->u.prefix, psize); | |
665 | ||
666 | if (src_p) { | |
667 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_SRCPFX); | |
668 | psize = PSIZE(src_p->prefixlen); | |
669 | stream_putc(s, src_p->prefixlen); | |
670 | stream_write(s, (u_char *)&src_p->u.prefix, psize); | |
078430f6 | 671 | } |
d62a17ae | 672 | |
673 | for (nexthop = re->nexthop; nexthop; nexthop = nexthop->next) { | |
674 | /* We don't send any nexthops when there's a multipath */ | |
675 | if (re->nexthop_active_num > 1 | |
676 | && client->proto != ZEBRA_ROUTE_LDP) { | |
677 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
678 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
679 | ||
680 | stream_putc(s, 1); | |
681 | if (p->family == AF_INET) { | |
682 | stream_put_in_addr(s, &dummy_nh.gate.ipv4); | |
683 | } else if (p->family == AF_INET6) { | |
684 | stream_write(s, (u_char *)&dummy_nh.gate.ipv6, | |
685 | 16); | |
686 | } else { | |
687 | /* We don't handle anything else now, abort */ | |
688 | zlog_err( | |
689 | "%s: Unable to redistribute route of unknown family, %d\n", | |
690 | __func__, p->family); | |
691 | return -1; | |
692 | } | |
693 | stream_putc(s, 1); | |
694 | stream_putl(s, 0); /* dummy ifindex */ | |
695 | break; | |
696 | } | |
697 | ||
698 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) { | |
699 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
700 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
701 | if (nhnummark == 0) { | |
702 | nhnummark = stream_get_endp(s); | |
703 | stream_putc(s, 1); /* placeholder */ | |
704 | } | |
705 | nhnum++; | |
706 | ||
707 | switch (nexthop->type) { | |
708 | case NEXTHOP_TYPE_IPV4: | |
709 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
710 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
711 | break; | |
712 | case NEXTHOP_TYPE_IPV6: | |
713 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
714 | /* Only BGP supports IPv4 prefix with IPv6 NH, | |
715 | * so kill this */ | |
716 | if (p->family == AF_INET) | |
717 | stream_put_in_addr(s, | |
718 | &dummy_nh.gate.ipv4); | |
719 | else | |
720 | stream_write( | |
721 | s, | |
722 | (u_char *)&nexthop->gate.ipv6, | |
723 | 16); | |
724 | break; | |
725 | default: | |
726 | if (cmd == ZEBRA_REDISTRIBUTE_IPV4_ADD | |
727 | || cmd == ZEBRA_REDISTRIBUTE_IPV4_DEL) { | |
728 | struct in_addr empty; | |
729 | memset(&empty, 0, | |
730 | sizeof(struct in_addr)); | |
731 | stream_write(s, (u_char *)&empty, | |
732 | IPV4_MAX_BYTELEN); | |
733 | } else { | |
734 | struct in6_addr empty; | |
735 | memset(&empty, 0, | |
736 | sizeof(struct in6_addr)); | |
737 | stream_write(s, (u_char *)&empty, | |
738 | IPV6_MAX_BYTELEN); | |
739 | } | |
740 | } | |
741 | ||
742 | /* Interface index. */ | |
743 | stream_putc(s, 1); | |
744 | stream_putl(s, nexthop->ifindex); | |
745 | ||
746 | /* ldpd needs all nexthops */ | |
747 | if (client->proto != ZEBRA_ROUTE_LDP) | |
748 | break; | |
749 | } | |
078430f6 | 750 | } |
d62a17ae | 751 | |
752 | /* Distance */ | |
753 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_DISTANCE); | |
754 | stream_putc(s, re->distance); | |
755 | ||
756 | /* Metric */ | |
757 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_METRIC); | |
758 | stream_putl(s, re->metric); | |
759 | ||
760 | /* Tag */ | |
761 | if (re->tag) { | |
762 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
763 | stream_putl(s, re->tag); | |
078430f6 DS |
764 | } |
765 | ||
d62a17ae | 766 | /* MTU */ |
767 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_MTU); | |
768 | stream_putl(s, re->mtu); | |
769 | ||
770 | /* write real message flags value */ | |
771 | stream_putc_at(s, messmark, zapi_flags); | |
772 | ||
773 | /* Write next-hop number */ | |
774 | if (nhnummark) | |
775 | stream_putc_at(s, nhnummark, nhnum); | |
776 | ||
777 | /* Write packet size. */ | |
778 | stream_putw_at(s, 0, stream_get_endp(s)); | |
779 | ||
780 | return zebra_server_send_message(client); | |
781 | } | |
782 | ||
783 | static int zsend_write_nexthop(struct stream *s, struct nexthop *nexthop) | |
784 | { | |
785 | stream_putc(s, nexthop->type); | |
786 | switch (nexthop->type) { | |
787 | case NEXTHOP_TYPE_IPV4: | |
788 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
789 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
790 | stream_putl(s, nexthop->ifindex); | |
791 | break; | |
792 | case NEXTHOP_TYPE_IPV6: | |
793 | stream_put(s, &nexthop->gate.ipv6, 16); | |
794 | break; | |
795 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
796 | stream_put(s, &nexthop->gate.ipv6, 16); | |
797 | stream_putl(s, nexthop->ifindex); | |
798 | break; | |
799 | case NEXTHOP_TYPE_IFINDEX: | |
800 | stream_putl(s, nexthop->ifindex); | |
801 | break; | |
802 | default: | |
803 | /* do nothing */ | |
804 | break; | |
805 | } | |
806 | return 1; | |
fb018d25 DS |
807 | } |
808 | ||
809 | /* Nexthop register */ | |
d62a17ae | 810 | static int zserv_rnh_register(struct zserv *client, int sock, u_short length, |
811 | rnh_type_t type, struct zebra_vrf *zvrf) | |
812 | { | |
813 | struct rnh *rnh; | |
814 | struct stream *s; | |
815 | struct prefix p; | |
816 | u_short l = 0; | |
817 | u_char flags = 0; | |
818 | ||
819 | if (IS_ZEBRA_DEBUG_NHT) | |
820 | zlog_debug( | |
821 | "rnh_register msg from client %s: length=%d, type=%s\n", | |
822 | zebra_route_string(client->proto), length, | |
823 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route"); | |
824 | ||
825 | s = client->ibuf; | |
826 | ||
827 | client->nh_reg_time = monotime(NULL); | |
828 | ||
829 | while (l < length) { | |
830 | flags = stream_getc(s); | |
831 | p.family = stream_getw(s); | |
832 | p.prefixlen = stream_getc(s); | |
833 | l += 4; | |
834 | if (p.family == AF_INET) { | |
835 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
836 | l += IPV4_MAX_BYTELEN; | |
837 | } else if (p.family == AF_INET6) { | |
838 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
839 | l += IPV6_MAX_BYTELEN; | |
840 | } else { | |
841 | zlog_err( | |
842 | "rnh_register: Received unknown family type %d\n", | |
843 | p.family); | |
844 | return -1; | |
845 | } | |
846 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type); | |
847 | if (type == RNH_NEXTHOP_TYPE) { | |
848 | if (flags | |
849 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
850 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
851 | else if (!flags | |
852 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
853 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
854 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
855 | if (flags | |
856 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
857 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
9d303b37 DL |
858 | else if (!flags && CHECK_FLAG(rnh->flags, |
859 | ZEBRA_NHT_EXACT_MATCH)) | |
d62a17ae | 860 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); |
861 | } | |
862 | ||
863 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
864 | /* Anything not AF_INET/INET6 has been filtered out above */ | |
865 | zebra_evaluate_rnh(zvrf_id(zvrf), p.family, 1, type, &p); | |
078430f6 | 866 | } |
d62a17ae | 867 | return 0; |
868 | } | |
869 | ||
870 | /* Nexthop register */ | |
871 | static int zserv_rnh_unregister(struct zserv *client, int sock, u_short length, | |
872 | rnh_type_t type, struct zebra_vrf *zvrf) | |
873 | { | |
874 | struct rnh *rnh; | |
875 | struct stream *s; | |
876 | struct prefix p; | |
877 | u_short l = 0; | |
878 | ||
879 | if (IS_ZEBRA_DEBUG_NHT) | |
880 | zlog_debug("rnh_unregister msg from client %s: length=%d\n", | |
881 | zebra_route_string(client->proto), length); | |
882 | ||
883 | s = client->ibuf; | |
884 | ||
885 | while (l < length) { | |
886 | (void)stream_getc( | |
887 | s); // Connected or not. Not used in this function | |
888 | p.family = stream_getw(s); | |
889 | p.prefixlen = stream_getc(s); | |
890 | l += 4; | |
891 | if (p.family == AF_INET) { | |
892 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
893 | l += IPV4_MAX_BYTELEN; | |
894 | } else if (p.family == AF_INET6) { | |
895 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
896 | l += IPV6_MAX_BYTELEN; | |
897 | } else { | |
898 | zlog_err( | |
899 | "rnh_register: Received unknown family type %d\n", | |
900 | p.family); | |
901 | return -1; | |
902 | } | |
903 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
904 | if (rnh) { | |
905 | client->nh_dereg_time = monotime(NULL); | |
906 | zebra_remove_rnh_client(rnh, client, type); | |
907 | } | |
04b02fda | 908 | } |
d62a17ae | 909 | return 0; |
fb018d25 DS |
910 | } |
911 | ||
b5ab78e6 | 912 | #define ZEBRA_MIN_FEC_LENGTH 5 |
7abc04e6 | 913 | |
5aba114a | 914 | /* FEC register */ |
d62a17ae | 915 | static int zserv_fec_register(struct zserv *client, int sock, u_short length) |
916 | { | |
917 | struct stream *s; | |
918 | struct zebra_vrf *zvrf; | |
919 | u_short l = 0; | |
920 | struct prefix p; | |
921 | u_int16_t flags; | |
922 | u_int32_t label_index = MPLS_INVALID_LABEL_INDEX; | |
923 | ||
924 | s = client->ibuf; | |
925 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
926 | if (!zvrf) | |
927 | return 0; // unexpected | |
928 | ||
929 | /* | |
930 | * The minimum amount of data that can be sent for one fec | |
931 | * registration | |
932 | */ | |
933 | if (length < ZEBRA_MIN_FEC_LENGTH) { | |
934 | zlog_err( | |
935 | "fec_register: Received a fec register of length %d, it is of insufficient size to properly decode", | |
936 | length); | |
937 | return -1; | |
938 | } | |
939 | ||
940 | while (l < length) { | |
941 | flags = stream_getw(s); | |
942 | p.family = stream_getw(s); | |
943 | if (p.family != AF_INET && p.family != AF_INET6) { | |
944 | zlog_err( | |
945 | "fec_register: Received unknown family type %d\n", | |
946 | p.family); | |
947 | return -1; | |
948 | } | |
949 | p.prefixlen = stream_getc(s); | |
950 | l += 5; | |
951 | stream_get(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
952 | l += PSIZE(p.prefixlen); | |
953 | if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { | |
954 | label_index = stream_getl(s); | |
955 | l += 4; | |
956 | } else | |
957 | label_index = MPLS_INVALID_LABEL_INDEX; | |
958 | zebra_mpls_fec_register(zvrf, &p, label_index, client); | |
959 | } | |
960 | ||
961 | return 0; | |
5aba114a DS |
962 | } |
963 | ||
964 | /* FEC unregister */ | |
d62a17ae | 965 | static int zserv_fec_unregister(struct zserv *client, int sock, u_short length) |
966 | { | |
967 | struct stream *s; | |
968 | struct zebra_vrf *zvrf; | |
969 | u_short l = 0; | |
970 | struct prefix p; | |
971 | // u_int16_t flags; | |
972 | ||
973 | s = client->ibuf; | |
974 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
975 | if (!zvrf) | |
976 | return 0; // unexpected | |
977 | ||
978 | /* | |
979 | * The minimum amount of data that can be sent for one | |
980 | * fec unregistration | |
981 | */ | |
982 | if (length < ZEBRA_MIN_FEC_LENGTH) { | |
983 | zlog_err( | |
984 | "fec_unregister: Received a fec unregister of length %d, it is of insufficient size to properly decode", | |
985 | length); | |
986 | return -1; | |
987 | } | |
988 | ||
989 | while (l < length) { | |
990 | // flags = stream_getw(s); | |
991 | (void)stream_getw(s); | |
992 | p.family = stream_getw(s); | |
993 | if (p.family != AF_INET && p.family != AF_INET6) { | |
994 | zlog_err( | |
995 | "fec_unregister: Received unknown family type %d\n", | |
996 | p.family); | |
997 | return -1; | |
998 | } | |
999 | p.prefixlen = stream_getc(s); | |
1000 | l += 5; | |
1001 | stream_get(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1002 | l += PSIZE(p.prefixlen); | |
1003 | zebra_mpls_fec_unregister(zvrf, &p, client); | |
1004 | } | |
1005 | ||
1006 | return 0; | |
5aba114a DS |
1007 | } |
1008 | ||
6f61a5a3 EM |
1009 | /* |
1010 | Modified version of zsend_ipv4_nexthop_lookup(): | |
1011 | Query unicast rib if nexthop is not found on mrib. | |
1012 | Returns both route metric and protocol distance. | |
1013 | */ | |
d62a17ae | 1014 | static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, |
1015 | struct in_addr addr, | |
1016 | struct route_entry *re, | |
1017 | struct zebra_vrf *zvrf) | |
1018 | { | |
1019 | struct stream *s; | |
1020 | unsigned long nump; | |
1021 | u_char num; | |
1022 | struct nexthop *nexthop; | |
1023 | ||
1024 | /* Get output stream. */ | |
1025 | s = client->obuf; | |
1026 | stream_reset(s); | |
1027 | ||
1028 | /* Fill in result. */ | |
1029 | zserv_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); | |
1030 | stream_put_in_addr(s, &addr); | |
1031 | ||
1032 | if (re) { | |
1033 | stream_putc(s, re->distance); | |
1034 | stream_putl(s, re->metric); | |
1035 | num = 0; | |
1036 | nump = stream_get_endp( | |
1037 | s); /* remember position for nexthop_num */ | |
1038 | stream_putc(s, 0); /* reserve room for nexthop_num */ | |
1039 | /* Only non-recursive routes are elegible to resolve the nexthop | |
1040 | * we | |
1041 | * are looking up. Therefore, we will just iterate over the top | |
1042 | * chain of nexthops. */ | |
1043 | for (nexthop = re->nexthop; nexthop; nexthop = nexthop->next) | |
1044 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
1045 | num += zsend_write_nexthop(s, nexthop); | |
1046 | ||
1047 | stream_putc_at(s, nump, num); /* store nexthop_num */ | |
1048 | } else { | |
1049 | stream_putc(s, 0); /* distance */ | |
1050 | stream_putl(s, 0); /* metric */ | |
1051 | stream_putc(s, 0); /* nexthop_num */ | |
1052 | } | |
1053 | ||
1054 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1055 | ||
1056 | return zebra_server_send_message(client); | |
6f61a5a3 EM |
1057 | } |
1058 | ||
18a6dce6 | 1059 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
d62a17ae | 1060 | int zsend_router_id_update(struct zserv *client, struct prefix *p, |
1061 | vrf_id_t vrf_id) | |
18a6dce6 | 1062 | { |
d62a17ae | 1063 | struct stream *s; |
1064 | int blen; | |
18a6dce6 | 1065 | |
d62a17ae | 1066 | /* Check this client need interface information. */ |
1067 | if (!vrf_bitmap_check(client->ridinfo, vrf_id)) | |
1068 | return 0; | |
18a6dce6 | 1069 | |
d62a17ae | 1070 | s = client->obuf; |
1071 | stream_reset(s); | |
18a6dce6 | 1072 | |
d62a17ae | 1073 | /* Message type. */ |
1074 | zserv_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); | |
18a6dce6 | 1075 | |
d62a17ae | 1076 | /* Prefix information. */ |
1077 | stream_putc(s, p->family); | |
1078 | blen = prefix_blen(p); | |
1079 | stream_put(s, &p->u.prefix, blen); | |
1080 | stream_putc(s, p->prefixlen); | |
18a6dce6 | 1081 | |
d62a17ae | 1082 | /* Write packet size. */ |
1083 | stream_putw_at(s, 0, stream_get_endp(s)); | |
18a6dce6 | 1084 | |
d62a17ae | 1085 | return zebra_server_send_message(client); |
18a6dce6 | 1086 | } |
6b0655a2 | 1087 | |
6833ae01 | 1088 | /* |
1089 | * Function used by Zebra to send a PW status update to LDP daemon | |
1090 | */ | |
1091 | int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) | |
1092 | { | |
1093 | struct stream *s; | |
1094 | ||
1095 | s = client->obuf; | |
1096 | stream_reset(s); | |
1097 | ||
1098 | zserv_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); | |
1099 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
1100 | stream_putl(s, pw->ifindex); | |
1101 | stream_putl(s, pw->status); | |
1102 | ||
1103 | /* Put length at the first point of the stream. */ | |
1104 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1105 | ||
1106 | return zebra_server_send_message(client); | |
1107 | } | |
1108 | ||
718e3744 | 1109 | /* Register zebra server interface information. Send current all |
1110 | interface and address information. */ | |
d62a17ae | 1111 | static int zread_interface_add(struct zserv *client, u_short length, |
1112 | struct zebra_vrf *zvrf) | |
718e3744 | 1113 | { |
d62a17ae | 1114 | struct vrf *vrf; |
1115 | struct listnode *ifnode, *ifnnode; | |
1116 | struct interface *ifp; | |
718e3744 | 1117 | |
d62a17ae | 1118 | /* Interface information is needed. */ |
1119 | vrf_bitmap_set(client->ifinfo, zvrf_id(zvrf)); | |
718e3744 | 1120 | |
d62a17ae | 1121 | RB_FOREACH(vrf, vrf_id_head, &vrfs_by_id) |
1122 | { | |
1123 | for (ALL_LIST_ELEMENTS(vrf->iflist, ifnode, ifnnode, ifp)) { | |
1124 | /* Skip pseudo interface. */ | |
1125 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1126 | continue; | |
718e3744 | 1127 | |
d62a17ae | 1128 | if (zsend_interface_add(client, ifp) < 0) |
1129 | return -1; | |
718e3744 | 1130 | |
d62a17ae | 1131 | if (zsend_interface_addresses(client, ifp) < 0) |
1132 | return -1; | |
1133 | } | |
1134 | } | |
1135 | return 0; | |
718e3744 | 1136 | } |
1137 | ||
1138 | /* Unregister zebra server interface information. */ | |
d62a17ae | 1139 | static int zread_interface_delete(struct zserv *client, u_short length, |
1140 | struct zebra_vrf *zvrf) | |
718e3744 | 1141 | { |
d62a17ae | 1142 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); |
1143 | return 0; | |
718e3744 | 1144 | } |
1145 | ||
d62a17ae | 1146 | void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, |
1147 | const unsigned int nexthop_num) | |
6878b9db | 1148 | { |
d62a17ae | 1149 | if (nexthop_num > multipath_num) { |
1150 | char buff[PREFIX2STR_BUFFER]; | |
1151 | prefix2str(p, buff, sizeof(buff)); | |
1152 | zlog_warn( | |
1153 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", | |
1154 | caller, buff, nexthop_num, multipath_num); | |
1155 | } | |
6878b9db DS |
1156 | } |
1157 | ||
718e3744 | 1158 | /* This function support multiple nexthop. */ |
d62a17ae | 1159 | /* |
f0f77c9a | 1160 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update re and |
d62a17ae | 1161 | * add kernel route. |
b9df2d25 | 1162 | */ |
d62a17ae | 1163 | static int zread_ipv4_add(struct zserv *client, u_short length, |
1164 | struct zebra_vrf *zvrf) | |
1165 | { | |
1166 | int i; | |
1167 | struct route_entry *re; | |
1168 | struct prefix p; | |
1169 | u_char message; | |
1170 | struct in_addr nhop_addr; | |
1171 | u_char nexthop_num; | |
1172 | u_char nexthop_type; | |
1173 | struct stream *s; | |
1174 | ifindex_t ifindex; | |
1175 | safi_t safi; | |
1176 | int ret; | |
1177 | mpls_label_t label; | |
1178 | struct nexthop *nexthop; | |
1179 | ||
1180 | /* Get input stream. */ | |
1181 | s = client->ibuf; | |
1182 | ||
1183 | /* Allocate new re. */ | |
1184 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1185 | ||
1186 | /* Type, flags, message. */ | |
1187 | re->type = stream_getc(s); | |
1188 | re->instance = stream_getw(s); | |
1189 | re->flags = stream_getl(s); | |
1190 | message = stream_getc(s); | |
1191 | safi = stream_getw(s); | |
1192 | re->uptime = time(NULL); | |
1193 | ||
1194 | /* IPv4 prefix. */ | |
1195 | memset(&p, 0, sizeof(struct prefix_ipv4)); | |
1196 | p.family = AF_INET; | |
1197 | p.prefixlen = stream_getc(s); | |
1198 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1199 | ||
1200 | /* VRF ID */ | |
1201 | re->vrf_id = zvrf_id(zvrf); | |
1202 | ||
1203 | /* Nexthop parse. */ | |
1204 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1205 | nexthop_num = stream_getc(s); | |
1206 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1207 | nexthop_num); | |
1208 | ||
1209 | for (i = 0; i < nexthop_num; i++) { | |
1210 | nexthop_type = stream_getc(s); | |
1211 | ||
1212 | switch (nexthop_type) { | |
1213 | case NEXTHOP_TYPE_IFINDEX: | |
1214 | ifindex = stream_getl(s); | |
1215 | route_entry_nexthop_ifindex_add(re, ifindex); | |
1216 | break; | |
1217 | case NEXTHOP_TYPE_IPV4: | |
1218 | nhop_addr.s_addr = stream_get_ipv4(s); | |
1219 | nexthop = route_entry_nexthop_ipv4_add( | |
1220 | re, &nhop_addr, NULL); | |
1221 | /* For labeled-unicast, each nexthop is followed | |
1222 | * by label. */ | |
1223 | if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) { | |
1224 | label = (mpls_label_t)stream_getl(s); | |
1225 | nexthop_add_labels( | |
1226 | nexthop, nexthop->nh_label_type, | |
1227 | 1, &label); | |
1228 | } | |
1229 | break; | |
1230 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1231 | nhop_addr.s_addr = stream_get_ipv4(s); | |
1232 | ifindex = stream_getl(s); | |
1233 | route_entry_nexthop_ipv4_ifindex_add( | |
1234 | re, &nhop_addr, NULL, ifindex); | |
1235 | break; | |
1236 | case NEXTHOP_TYPE_IPV6: | |
1237 | stream_forward_getp(s, IPV6_MAX_BYTELEN); | |
1238 | break; | |
1239 | case NEXTHOP_TYPE_BLACKHOLE: | |
1240 | route_entry_nexthop_blackhole_add(re); | |
1241 | break; | |
1242 | } | |
1243 | } | |
718e3744 | 1244 | } |
718e3744 | 1245 | |
d62a17ae | 1246 | /* Distance. */ |
1247 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1248 | re->distance = stream_getc(s); | |
718e3744 | 1249 | |
d62a17ae | 1250 | /* Metric. */ |
1251 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1252 | re->metric = stream_getl(s); | |
0d9551dc | 1253 | |
d62a17ae | 1254 | /* Tag */ |
1255 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1256 | re->tag = stream_getl(s); | |
1257 | else | |
1258 | re->tag = 0; | |
c50ca33a | 1259 | |
d62a17ae | 1260 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) |
1261 | re->mtu = stream_getl(s); | |
1262 | else | |
1263 | re->mtu = 0; | |
1264 | ||
1265 | /* Table */ | |
1266 | re->table = zvrf->table_id; | |
12f6fb97 | 1267 | |
d62a17ae | 1268 | ret = rib_add_multipath(AFI_IP, safi, &p, NULL, re); |
04b02fda | 1269 | |
d62a17ae | 1270 | /* Stats */ |
1271 | if (ret > 0) | |
1272 | client->v4_route_add_cnt++; | |
1273 | else if (ret < 0) | |
1274 | client->v4_route_upd8_cnt++; | |
1275 | return 0; | |
718e3744 | 1276 | } |
1277 | ||
1278 | /* Zebra server IPv4 prefix delete function. */ | |
d62a17ae | 1279 | static int zread_ipv4_delete(struct zserv *client, u_short length, |
1280 | struct zebra_vrf *zvrf) | |
1281 | { | |
1282 | int i; | |
1283 | struct stream *s; | |
1284 | struct zapi_ipv4 api; | |
1285 | struct in_addr nexthop; | |
1286 | union g_addr *nexthop_p; | |
1287 | unsigned long ifindex; | |
1288 | struct prefix p; | |
1289 | u_char nexthop_num; | |
1290 | u_char nexthop_type; | |
1291 | u_int32_t table_id; | |
1292 | ||
1293 | s = client->ibuf; | |
1294 | ifindex = 0; | |
1295 | nexthop.s_addr = 0; | |
1296 | nexthop_p = NULL; | |
1297 | ||
1298 | /* Type, flags, message. */ | |
1299 | api.type = stream_getc(s); | |
1300 | api.instance = stream_getw(s); | |
1301 | api.flags = stream_getl(s); | |
1302 | api.message = stream_getc(s); | |
1303 | api.safi = stream_getw(s); | |
1304 | ||
1305 | /* IPv4 prefix. */ | |
1306 | memset(&p, 0, sizeof(struct prefix)); | |
1307 | p.family = AF_INET; | |
1308 | p.prefixlen = stream_getc(s); | |
1309 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1310 | ||
1311 | /* Nexthop, ifindex, distance, metric. */ | |
1312 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { | |
1313 | nexthop_num = stream_getc(s); | |
1314 | ||
1315 | for (i = 0; i < nexthop_num; i++) { | |
1316 | nexthop_type = stream_getc(s); | |
1317 | ||
1318 | switch (nexthop_type) { | |
1319 | case NEXTHOP_TYPE_IFINDEX: | |
1320 | ifindex = stream_getl(s); | |
1321 | break; | |
1322 | case NEXTHOP_TYPE_IPV4: | |
1323 | nexthop.s_addr = stream_get_ipv4(s); | |
1324 | /* For labeled-unicast, each nexthop is followed | |
1325 | * by label, but | |
1326 | * we don't care for delete. | |
1327 | */ | |
1328 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL)) | |
1329 | stream_forward_getp(s, | |
1330 | sizeof(u_int32_t)); | |
1331 | nexthop_p = (union g_addr *)&nexthop; | |
1332 | break; | |
1333 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1334 | nexthop.s_addr = stream_get_ipv4(s); | |
1335 | nexthop_p = (union g_addr *)&nexthop; | |
1336 | ifindex = stream_getl(s); | |
1337 | break; | |
1338 | case NEXTHOP_TYPE_IPV6: | |
1339 | stream_forward_getp(s, IPV6_MAX_BYTELEN); | |
1340 | break; | |
1341 | } | |
1342 | } | |
718e3744 | 1343 | } |
d62a17ae | 1344 | |
1345 | /* Distance. */ | |
1346 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) | |
1347 | api.distance = stream_getc(s); | |
1348 | else | |
1349 | api.distance = 0; | |
1350 | ||
1351 | /* Metric. */ | |
1352 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1353 | api.metric = stream_getl(s); | |
1354 | else | |
1355 | api.metric = 0; | |
1356 | ||
1357 | /* tag */ | |
1358 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1359 | api.tag = stream_getl(s); | |
1360 | else | |
1361 | api.tag = 0; | |
1362 | ||
1363 | table_id = zvrf->table_id; | |
1364 | ||
1365 | rib_delete(AFI_IP, api.safi, zvrf_id(zvrf), api.type, api.instance, | |
1366 | api.flags, &p, NULL, nexthop_p, ifindex, table_id); | |
1367 | client->v4_route_del_cnt++; | |
1368 | return 0; | |
718e3744 | 1369 | } |
1370 | ||
6f61a5a3 | 1371 | /* MRIB Nexthop lookup for IPv4. */ |
d62a17ae | 1372 | static int zread_ipv4_nexthop_lookup_mrib(struct zserv *client, u_short length, |
1373 | struct zebra_vrf *zvrf) | |
6f61a5a3 | 1374 | { |
d62a17ae | 1375 | struct in_addr addr; |
1376 | struct route_entry *re; | |
6f61a5a3 | 1377 | |
d62a17ae | 1378 | addr.s_addr = stream_get_ipv4(client->ibuf); |
1379 | re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
1380 | return zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); | |
6f61a5a3 EM |
1381 | } |
1382 | ||
8a92a8a0 | 1383 | /* Zebra server IPv6 prefix add function. */ |
d62a17ae | 1384 | static int zread_ipv4_route_ipv6_nexthop_add(struct zserv *client, |
1385 | u_short length, | |
1386 | struct zebra_vrf *zvrf) | |
1387 | { | |
1388 | unsigned int i; | |
1389 | struct stream *s; | |
1390 | struct in6_addr nhop_addr; | |
1391 | struct route_entry *re; | |
1392 | u_char message; | |
1393 | u_char nexthop_num; | |
1394 | u_char nexthop_type; | |
1395 | struct prefix p; | |
1396 | safi_t safi; | |
1397 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1398 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1399 | int ret; | |
1400 | static mpls_label_t labels[MULTIPATH_NUM]; | |
1401 | mpls_label_t label; | |
1402 | struct nexthop *nexthop; | |
1403 | ||
1404 | /* Get input stream. */ | |
1405 | s = client->ibuf; | |
1406 | ||
1407 | memset(&nhop_addr, 0, sizeof(struct in6_addr)); | |
1408 | ||
1409 | /* Allocate new re. */ | |
1410 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1411 | ||
1412 | /* Type, flags, message. */ | |
1413 | re->type = stream_getc(s); | |
1414 | re->instance = stream_getw(s); | |
1415 | re->flags = stream_getl(s); | |
1416 | message = stream_getc(s); | |
1417 | safi = stream_getw(s); | |
1418 | re->uptime = time(NULL); | |
1419 | ||
1420 | /* IPv4 prefix. */ | |
1421 | memset(&p, 0, sizeof(struct prefix_ipv4)); | |
1422 | p.family = AF_INET; | |
1423 | p.prefixlen = stream_getc(s); | |
1424 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1425 | ||
1426 | /* VRF ID */ | |
1427 | re->vrf_id = zvrf_id(zvrf); | |
1428 | ||
1429 | /* We need to give nh-addr, nh-ifindex with the same next-hop object | |
1430 | * to the re to ensure that IPv6 multipathing works; need to coalesce | |
1431 | * these. Clients should send the same number of paired set of | |
1432 | * next-hop-addr/next-hop-ifindices. */ | |
1433 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1434 | unsigned int nh_count = 0; | |
1435 | unsigned int if_count = 0; | |
1436 | unsigned int max_nh_if = 0; | |
1437 | ||
1438 | nexthop_num = stream_getc(s); | |
1439 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1440 | nexthop_num); | |
1441 | for (i = 0; i < nexthop_num; i++) { | |
1442 | nexthop_type = stream_getc(s); | |
1443 | ||
1444 | switch (nexthop_type) { | |
1445 | case NEXTHOP_TYPE_IPV6: | |
1446 | stream_get(&nhop_addr, s, 16); | |
1447 | if (nh_count < MULTIPATH_NUM) { | |
1448 | /* For labeled-unicast, each nexthop is | |
1449 | * followed by label. */ | |
1450 | if (CHECK_FLAG(message, | |
1451 | ZAPI_MESSAGE_LABEL)) { | |
1452 | label = (mpls_label_t) | |
1453 | stream_getl(s); | |
1454 | labels[nh_count] = label; | |
1455 | } | |
1456 | nexthops[nh_count] = nhop_addr; | |
1457 | nh_count++; | |
1458 | } | |
1459 | break; | |
1460 | case NEXTHOP_TYPE_IFINDEX: | |
1461 | if (if_count < multipath_num) { | |
1462 | ifindices[if_count++] = stream_getl(s); | |
1463 | } | |
1464 | break; | |
1465 | case NEXTHOP_TYPE_BLACKHOLE: | |
1466 | route_entry_nexthop_blackhole_add(re); | |
1467 | break; | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1472 | for (i = 0; i < max_nh_if; i++) { | |
1473 | if ((i < nh_count) | |
1474 | && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { | |
1475 | if ((i < if_count) && ifindices[i]) | |
1476 | nexthop = | |
1477 | route_entry_nexthop_ipv6_ifindex_add( | |
1478 | re, &nexthops[i], | |
1479 | ifindices[i]); | |
1480 | else | |
1481 | nexthop = route_entry_nexthop_ipv6_add( | |
1482 | re, &nexthops[i]); | |
1483 | ||
1484 | if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) | |
1485 | nexthop_add_labels( | |
1486 | nexthop, nexthop->nh_label_type, | |
1487 | 1, &labels[i]); | |
1488 | } else { | |
1489 | if ((i < if_count) && ifindices[i]) | |
1490 | route_entry_nexthop_ifindex_add( | |
1491 | re, ifindices[i]); | |
1492 | } | |
1493 | } | |
8a92a8a0 DS |
1494 | } |
1495 | ||
d62a17ae | 1496 | /* Distance. */ |
1497 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1498 | re->distance = stream_getc(s); | |
41fc2714 | 1499 | |
d62a17ae | 1500 | /* Metric. */ |
1501 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1502 | re->metric = stream_getl(s); | |
1503 | ||
1504 | /* Tag */ | |
1505 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1506 | re->tag = stream_getl(s); | |
1507 | else | |
1508 | re->tag = 0; | |
1509 | ||
1510 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) | |
1511 | re->mtu = stream_getl(s); | |
1512 | else | |
1513 | re->mtu = 0; | |
1514 | ||
1515 | /* Table */ | |
1516 | re->table = zvrf->table_id; | |
1517 | ||
1518 | ret = rib_add_multipath(AFI_IP6, safi, &p, NULL, re); | |
1519 | /* Stats */ | |
1520 | if (ret > 0) | |
1521 | client->v4_route_add_cnt++; | |
1522 | else if (ret < 0) | |
1523 | client->v4_route_upd8_cnt++; | |
1524 | ||
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | static int zread_ipv6_add(struct zserv *client, u_short length, | |
1529 | struct zebra_vrf *zvrf) | |
1530 | { | |
1531 | unsigned int i; | |
1532 | struct stream *s; | |
1533 | struct in6_addr nhop_addr; | |
1534 | struct route_entry *re; | |
1535 | u_char message; | |
1536 | u_char nexthop_num; | |
1537 | u_char nexthop_type; | |
1538 | struct prefix p; | |
1539 | struct prefix_ipv6 src_p, *src_pp; | |
1540 | safi_t safi; | |
1541 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1542 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1543 | int ret; | |
1544 | static mpls_label_t labels[MULTIPATH_NUM]; | |
1545 | mpls_label_t label; | |
1546 | struct nexthop *nexthop; | |
1547 | ||
1548 | /* Get input stream. */ | |
1549 | s = client->ibuf; | |
1550 | ||
1551 | memset(&nhop_addr, 0, sizeof(struct in6_addr)); | |
1552 | ||
1553 | /* Allocate new re. */ | |
1554 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1555 | ||
1556 | /* Type, flags, message. */ | |
1557 | re->type = stream_getc(s); | |
1558 | re->instance = stream_getw(s); | |
1559 | re->flags = stream_getl(s); | |
1560 | message = stream_getc(s); | |
1561 | safi = stream_getw(s); | |
1562 | re->uptime = time(NULL); | |
1563 | ||
1564 | /* IPv6 prefix. */ | |
1565 | memset(&p, 0, sizeof(struct prefix_ipv6)); | |
1566 | p.family = AF_INET6; | |
1567 | p.prefixlen = stream_getc(s); | |
1568 | stream_get(&p.u.prefix6, s, PSIZE(p.prefixlen)); | |
1569 | ||
1570 | if (CHECK_FLAG(message, ZAPI_MESSAGE_SRCPFX)) { | |
1571 | memset(&src_p, 0, sizeof(struct prefix_ipv6)); | |
1572 | src_p.family = AF_INET6; | |
1573 | src_p.prefixlen = stream_getc(s); | |
1574 | stream_get(&src_p.prefix, s, PSIZE(src_p.prefixlen)); | |
1575 | src_pp = &src_p; | |
1576 | } else | |
1577 | src_pp = NULL; | |
1578 | ||
1579 | /* We need to give nh-addr, nh-ifindex with the same next-hop object | |
1580 | * to the re to ensure that IPv6 multipathing works; need to coalesce | |
1581 | * these. Clients should send the same number of paired set of | |
1582 | * next-hop-addr/next-hop-ifindices. */ | |
1583 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1584 | unsigned int nh_count = 0; | |
1585 | unsigned int if_count = 0; | |
1586 | unsigned int max_nh_if = 0; | |
1587 | ||
1588 | nexthop_num = stream_getc(s); | |
1589 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1590 | nexthop_num); | |
1591 | for (i = 0; i < nexthop_num; i++) { | |
1592 | nexthop_type = stream_getc(s); | |
1593 | ||
1594 | switch (nexthop_type) { | |
1595 | case NEXTHOP_TYPE_IPV6: | |
1596 | stream_get(&nhop_addr, s, 16); | |
1597 | if (nh_count < MULTIPATH_NUM) { | |
1598 | /* For labeled-unicast, each nexthop is | |
1599 | * followed by label. */ | |
1600 | if (CHECK_FLAG(message, | |
1601 | ZAPI_MESSAGE_LABEL)) { | |
1602 | label = (mpls_label_t) | |
1603 | stream_getl(s); | |
1604 | labels[nh_count] = label; | |
1605 | } | |
1606 | nexthops[nh_count++] = nhop_addr; | |
1607 | } | |
1608 | break; | |
1609 | case NEXTHOP_TYPE_IFINDEX: | |
1610 | if (if_count < multipath_num) { | |
1611 | ifindices[if_count++] = stream_getl(s); | |
1612 | } | |
1613 | break; | |
1614 | case NEXTHOP_TYPE_BLACKHOLE: | |
1615 | route_entry_nexthop_blackhole_add(re); | |
1616 | break; | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1621 | for (i = 0; i < max_nh_if; i++) { | |
1622 | if ((i < nh_count) | |
1623 | && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { | |
1624 | if ((i < if_count) && ifindices[i]) | |
1625 | nexthop = | |
1626 | route_entry_nexthop_ipv6_ifindex_add( | |
1627 | re, &nexthops[i], | |
1628 | ifindices[i]); | |
1629 | else | |
1630 | nexthop = route_entry_nexthop_ipv6_add( | |
1631 | re, &nexthops[i]); | |
1632 | if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) | |
1633 | nexthop_add_labels( | |
1634 | nexthop, nexthop->nh_label_type, | |
1635 | 1, &labels[i]); | |
1636 | } else { | |
1637 | if ((i < if_count) && ifindices[i]) | |
1638 | route_entry_nexthop_ifindex_add( | |
1639 | re, ifindices[i]); | |
1640 | } | |
1641 | } | |
41fc2714 | 1642 | } |
718e3744 | 1643 | |
d62a17ae | 1644 | /* Distance. */ |
1645 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1646 | re->distance = stream_getc(s); | |
1647 | ||
1648 | /* Metric. */ | |
1649 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1650 | re->metric = stream_getl(s); | |
718e3744 | 1651 | |
d62a17ae | 1652 | /* Tag */ |
1653 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1654 | re->tag = stream_getl(s); | |
1655 | else | |
1656 | re->tag = 0; | |
c50ca33a | 1657 | |
d62a17ae | 1658 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) |
1659 | re->mtu = stream_getl(s); | |
1660 | else | |
1661 | re->mtu = 0; | |
0d9551dc | 1662 | |
d62a17ae | 1663 | /* VRF ID */ |
1664 | re->vrf_id = zvrf_id(zvrf); | |
1665 | re->table = zvrf->table_id; | |
154caaed | 1666 | |
d62a17ae | 1667 | ret = rib_add_multipath(AFI_IP6, safi, &p, src_pp, re); |
1668 | /* Stats */ | |
1669 | if (ret > 0) | |
1670 | client->v6_route_add_cnt++; | |
1671 | else if (ret < 0) | |
1672 | client->v6_route_upd8_cnt++; | |
04b02fda | 1673 | |
d62a17ae | 1674 | return 0; |
718e3744 | 1675 | } |
1676 | ||
1677 | /* Zebra server IPv6 prefix delete function. */ | |
d62a17ae | 1678 | static int zread_ipv6_delete(struct zserv *client, u_short length, |
1679 | struct zebra_vrf *zvrf) | |
1680 | { | |
1681 | int i; | |
1682 | struct stream *s; | |
1683 | struct zapi_ipv6 api; | |
1684 | struct in6_addr nexthop; | |
1685 | union g_addr *pnexthop = NULL; | |
1686 | unsigned long ifindex; | |
1687 | struct prefix p; | |
1688 | struct prefix_ipv6 src_p, *src_pp; | |
1689 | ||
1690 | s = client->ibuf; | |
1691 | ifindex = 0; | |
1692 | memset(&nexthop, 0, sizeof(struct in6_addr)); | |
1693 | ||
1694 | /* Type, flags, message. */ | |
1695 | api.type = stream_getc(s); | |
1696 | api.instance = stream_getw(s); | |
1697 | api.flags = stream_getl(s); | |
1698 | api.message = stream_getc(s); | |
1699 | api.safi = stream_getw(s); | |
1700 | ||
1701 | /* IPv4 prefix. */ | |
1702 | memset(&p, 0, sizeof(struct prefix_ipv6)); | |
1703 | p.family = AF_INET6; | |
1704 | p.prefixlen = stream_getc(s); | |
1705 | stream_get(&p.u.prefix6, s, PSIZE(p.prefixlen)); | |
1706 | ||
1707 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
1708 | memset(&src_p, 0, sizeof(struct prefix_ipv6)); | |
1709 | src_p.family = AF_INET6; | |
1710 | src_p.prefixlen = stream_getc(s); | |
1711 | stream_get(&src_p.prefix, s, PSIZE(src_p.prefixlen)); | |
1712 | src_pp = &src_p; | |
1713 | } else | |
1714 | src_pp = NULL; | |
1715 | ||
1716 | /* Nexthop, ifindex, distance, metric. */ | |
1717 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { | |
1718 | u_char nexthop_type; | |
1719 | ||
1720 | api.nexthop_num = stream_getc(s); | |
1721 | for (i = 0; i < api.nexthop_num; i++) { | |
1722 | nexthop_type = stream_getc(s); | |
1723 | ||
1724 | switch (nexthop_type) { | |
1725 | case NEXTHOP_TYPE_IPV6: | |
1726 | stream_get(&nexthop, s, 16); | |
1727 | /* For labeled-unicast, each nexthop is followed | |
1728 | * by label, but | |
1729 | * we don't care for delete. | |
1730 | */ | |
1731 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL)) | |
1732 | stream_forward_getp(s, | |
1733 | sizeof(u_int32_t)); | |
1734 | pnexthop = (union g_addr *)&nexthop; | |
1735 | break; | |
1736 | case NEXTHOP_TYPE_IFINDEX: | |
1737 | ifindex = stream_getl(s); | |
1738 | break; | |
1739 | } | |
1740 | } | |
718e3744 | 1741 | } |
d62a17ae | 1742 | |
1743 | /* Distance. */ | |
1744 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) | |
1745 | api.distance = stream_getc(s); | |
1746 | else | |
1747 | api.distance = 0; | |
1748 | ||
1749 | /* Metric. */ | |
1750 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1751 | api.metric = stream_getl(s); | |
1752 | else | |
1753 | api.metric = 0; | |
1754 | ||
1755 | /* tag */ | |
1756 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1757 | api.tag = stream_getl(s); | |
1758 | else | |
1759 | api.tag = 0; | |
1760 | ||
1761 | if (IN6_IS_ADDR_UNSPECIFIED(&nexthop)) | |
1762 | rib_delete(AFI_IP6, api.safi, zvrf_id(zvrf), api.type, | |
1763 | api.instance, api.flags, &p, src_pp, NULL, ifindex, | |
1764 | client->rtm_table); | |
1765 | else | |
1766 | rib_delete(AFI_IP6, api.safi, zvrf_id(zvrf), api.type, | |
1767 | api.instance, api.flags, &p, src_pp, pnexthop, | |
1768 | ifindex, client->rtm_table); | |
1769 | ||
1770 | client->v6_route_del_cnt++; | |
1771 | return 0; | |
718e3744 | 1772 | } |
1773 | ||
18a6dce6 | 1774 | /* Register zebra server router-id information. Send current router-id */ |
d62a17ae | 1775 | static int zread_router_id_add(struct zserv *client, u_short length, |
1776 | struct zebra_vrf *zvrf) | |
18a6dce6 | 1777 | { |
d62a17ae | 1778 | struct prefix p; |
18a6dce6 | 1779 | |
d62a17ae | 1780 | /* Router-id information is needed. */ |
1781 | vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); | |
18a6dce6 | 1782 | |
d62a17ae | 1783 | router_id_get(&p, zvrf_id(zvrf)); |
18a6dce6 | 1784 | |
d62a17ae | 1785 | return zsend_router_id_update(client, &p, zvrf_id(zvrf)); |
18a6dce6 | 1786 | } |
1787 | ||
1788 | /* Unregister zebra server router-id information. */ | |
d62a17ae | 1789 | static int zread_router_id_delete(struct zserv *client, u_short length, |
1790 | struct zebra_vrf *zvrf) | |
18a6dce6 | 1791 | { |
d62a17ae | 1792 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); |
1793 | return 0; | |
18a6dce6 | 1794 | } |
1795 | ||
2ea1ab1c | 1796 | /* Tie up route-type and client->sock */ |
d62a17ae | 1797 | static void zread_hello(struct zserv *client) |
2ea1ab1c | 1798 | { |
d62a17ae | 1799 | /* type of protocol (lib/zebra.h) */ |
1800 | u_char proto; | |
1801 | u_short instance; | |
7c8ff89e | 1802 | |
d62a17ae | 1803 | proto = stream_getc(client->ibuf); |
1804 | instance = stream_getw(client->ibuf); | |
2ea1ab1c | 1805 | |
d62a17ae | 1806 | /* accept only dynamic routing protocols */ |
1807 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_STATIC)) { | |
1808 | zlog_notice( | |
1809 | "client %d says hello and bids fair to announce only %s routes", | |
1810 | client->sock, zebra_route_string(proto)); | |
1811 | if (instance) | |
1812 | zlog_notice("client protocol instance %d", instance); | |
2ea1ab1c | 1813 | |
d62a17ae | 1814 | client->proto = proto; |
1815 | client->instance = instance; | |
1816 | } | |
2ea1ab1c VT |
1817 | } |
1818 | ||
7076bb2f | 1819 | /* Unregister all information in a VRF. */ |
d62a17ae | 1820 | static int zread_vrf_unregister(struct zserv *client, u_short length, |
1821 | struct zebra_vrf *zvrf) | |
1822 | { | |
1823 | int i; | |
1824 | afi_t afi; | |
1825 | ||
1826 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1827 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
1828 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
1829 | vrf_bitmap_unset(client->redist_default, zvrf_id(zvrf)); | |
1830 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); | |
1831 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1832 | ||
1833 | return 0; | |
1834 | } | |
1835 | ||
1836 | static void zread_mpls_labels(int command, struct zserv *client, u_short length, | |
1837 | vrf_id_t vrf_id) | |
1838 | { | |
1839 | struct stream *s; | |
1840 | enum lsp_types_t type; | |
1841 | struct prefix prefix; | |
1842 | enum nexthop_types_t gtype; | |
1843 | union g_addr gate; | |
1844 | ifindex_t ifindex; | |
1845 | mpls_label_t in_label, out_label; | |
1846 | u_int8_t distance; | |
1847 | struct zebra_vrf *zvrf; | |
1848 | ||
1849 | zvrf = vrf_info_lookup(vrf_id); | |
1850 | if (!zvrf) | |
1851 | return; | |
1852 | ||
1853 | /* Get input stream. */ | |
1854 | s = client->ibuf; | |
1855 | ||
1856 | /* Get data. */ | |
1857 | type = stream_getc(s); | |
1858 | prefix.family = stream_getl(s); | |
1859 | switch (prefix.family) { | |
1860 | case AF_INET: | |
1861 | prefix.u.prefix4.s_addr = stream_get_ipv4(s); | |
1862 | prefix.prefixlen = stream_getc(s); | |
1863 | gate.ipv4.s_addr = stream_get_ipv4(s); | |
1864 | break; | |
1865 | case AF_INET6: | |
1866 | stream_get(&prefix.u.prefix6, s, 16); | |
1867 | prefix.prefixlen = stream_getc(s); | |
1868 | stream_get(&gate.ipv6, s, 16); | |
1869 | break; | |
1870 | default: | |
1871 | return; | |
1872 | } | |
1873 | ifindex = stream_getl(s); | |
1874 | distance = stream_getc(s); | |
1875 | in_label = stream_getl(s); | |
1876 | out_label = stream_getl(s); | |
1877 | ||
1878 | switch (prefix.family) { | |
1879 | case AF_INET: | |
1880 | if (ifindex) | |
1881 | gtype = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1882 | else | |
1883 | gtype = NEXTHOP_TYPE_IPV4; | |
1884 | break; | |
1885 | case AF_INET6: | |
1886 | if (ifindex) | |
1887 | gtype = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1888 | else | |
1889 | gtype = NEXTHOP_TYPE_IPV6; | |
1890 | break; | |
1891 | default: | |
1892 | return; | |
1893 | } | |
1894 | ||
1895 | if (!mpls_enabled) | |
1896 | return; | |
1897 | ||
1898 | if (command == ZEBRA_MPLS_LABELS_ADD) { | |
1899 | mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, | |
1900 | ifindex); | |
2f9c59f0 RW |
1901 | mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, |
1902 | distance, out_label); | |
d62a17ae | 1903 | } else if (command == ZEBRA_MPLS_LABELS_DELETE) { |
1904 | mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, ifindex); | |
2f9c59f0 RW |
1905 | mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, |
1906 | distance, out_label); | |
d62a17ae | 1907 | } |
ce549947 | 1908 | } |
fea12efb | 1909 | /* Send response to a label manager connect request to client */ |
d62a17ae | 1910 | static int zsend_label_manager_connect_response(struct zserv *client, |
1911 | vrf_id_t vrf_id, u_short result) | |
fea12efb | 1912 | { |
d62a17ae | 1913 | struct stream *s; |
fea12efb | 1914 | |
d62a17ae | 1915 | s = client->obuf; |
1916 | stream_reset(s); | |
fea12efb | 1917 | |
d62a17ae | 1918 | zserv_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); |
fea12efb | 1919 | |
d62a17ae | 1920 | /* result */ |
1921 | stream_putc(s, result); | |
fea12efb | 1922 | |
d62a17ae | 1923 | /* Write packet size. */ |
1924 | stream_putw_at(s, 0, stream_get_endp(s)); | |
fea12efb | 1925 | |
d62a17ae | 1926 | return writen(client->sock, s->data, stream_get_endp(s)); |
fea12efb | 1927 | } |
1928 | ||
d62a17ae | 1929 | static void zread_label_manager_connect(struct zserv *client, vrf_id_t vrf_id) |
fea12efb | 1930 | { |
d62a17ae | 1931 | struct stream *s; |
1932 | /* type of protocol (lib/zebra.h) */ | |
1933 | u_char proto; | |
1934 | u_short instance; | |
fea12efb | 1935 | |
d62a17ae | 1936 | /* Get input stream. */ |
1937 | s = client->ibuf; | |
fea12efb | 1938 | |
d62a17ae | 1939 | /* Get data. */ |
1940 | proto = stream_getc(s); | |
1941 | instance = stream_getw(s); | |
fea12efb | 1942 | |
d62a17ae | 1943 | /* accept only dynamic routing protocols */ |
1944 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
1945 | zlog_err("client %d has wrong protocol %s", client->sock, | |
1946 | zebra_route_string(proto)); | |
1947 | zsend_label_manager_connect_response(client, vrf_id, 1); | |
1948 | return; | |
1949 | } | |
1950 | zlog_notice("client %d with instance %u connected as %s", client->sock, | |
1951 | instance, zebra_route_string(proto)); | |
1952 | client->proto = proto; | |
1953 | client->instance = instance; | |
1954 | ||
1955 | /* | |
1956 | Release previous labels of same protocol and instance. | |
1957 | This is done in case it restarted from an unexpected shutdown. | |
1958 | */ | |
1959 | release_daemon_chunks(proto, instance); | |
1960 | ||
1961 | zlog_debug( | |
1962 | " Label Manager client connected: sock %d, proto %s, instance %u", | |
1963 | client->sock, zebra_route_string(proto), instance); | |
1964 | /* send response back */ | |
1965 | zsend_label_manager_connect_response(client, vrf_id, 0); | |
fea12efb | 1966 | } |
1967 | /* Send response to a get label chunk request to client */ | |
d62a17ae | 1968 | static int zsend_assign_label_chunk_response(struct zserv *client, |
1969 | vrf_id_t vrf_id, | |
1970 | struct label_manager_chunk *lmc) | |
fea12efb | 1971 | { |
d62a17ae | 1972 | struct stream *s; |
fea12efb | 1973 | |
d62a17ae | 1974 | s = client->obuf; |
1975 | stream_reset(s); | |
fea12efb | 1976 | |
d62a17ae | 1977 | zserv_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); |
fea12efb | 1978 | |
d62a17ae | 1979 | if (lmc) { |
1980 | /* keep */ | |
1981 | stream_putc(s, lmc->keep); | |
1982 | /* start and end labels */ | |
1983 | stream_putl(s, lmc->start); | |
1984 | stream_putl(s, lmc->end); | |
1985 | } | |
fea12efb | 1986 | |
d62a17ae | 1987 | /* Write packet size. */ |
1988 | stream_putw_at(s, 0, stream_get_endp(s)); | |
fea12efb | 1989 | |
d62a17ae | 1990 | return writen(client->sock, s->data, stream_get_endp(s)); |
fea12efb | 1991 | } |
1992 | ||
d62a17ae | 1993 | static void zread_get_label_chunk(struct zserv *client, vrf_id_t vrf_id) |
fea12efb | 1994 | { |
d62a17ae | 1995 | struct stream *s; |
1996 | u_char keep; | |
1997 | uint32_t size; | |
1998 | struct label_manager_chunk *lmc; | |
fea12efb | 1999 | |
d62a17ae | 2000 | /* Get input stream. */ |
2001 | s = client->ibuf; | |
fea12efb | 2002 | |
d62a17ae | 2003 | /* Get data. */ |
2004 | keep = stream_getc(s); | |
2005 | size = stream_getl(s); | |
fea12efb | 2006 | |
d62a17ae | 2007 | lmc = assign_label_chunk(client->proto, client->instance, keep, size); |
2008 | if (!lmc) | |
2009 | zlog_err("%s: Unable to assign Label Chunk of size %u", | |
2010 | __func__, size); | |
2011 | else | |
2012 | zlog_debug("Assigned Label Chunk %u - %u to %u", lmc->start, | |
2013 | lmc->end, keep); | |
2014 | /* send response back */ | |
2015 | zsend_assign_label_chunk_response(client, vrf_id, lmc); | |
2016 | } | |
2017 | ||
2018 | static void zread_release_label_chunk(struct zserv *client) | |
2019 | { | |
2020 | struct stream *s; | |
2021 | uint32_t start, end; | |
2022 | ||
2023 | /* Get input stream. */ | |
2024 | s = client->ibuf; | |
2025 | ||
2026 | /* Get data. */ | |
2027 | start = stream_getl(s); | |
2028 | end = stream_getl(s); | |
2029 | ||
2030 | release_label_chunk(client->proto, client->instance, start, end); | |
2031 | } | |
2032 | static void zread_label_manager_request(int cmd, struct zserv *client, | |
2033 | vrf_id_t vrf_id) | |
2034 | { | |
2035 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
2036 | if (cmd == ZEBRA_LABEL_MANAGER_CONNECT) | |
2037 | client->is_synchronous = 1; | |
2038 | ||
2039 | /* external label manager */ | |
2040 | if (lm_is_external) | |
2041 | zread_relay_label_manager_request(cmd, client, vrf_id); | |
2042 | /* this is a label manager */ | |
2043 | else { | |
2044 | if (cmd == ZEBRA_LABEL_MANAGER_CONNECT) | |
2045 | zread_label_manager_connect(client, vrf_id); | |
2046 | else { | |
2047 | /* Sanity: don't allow 'unidentified' requests */ | |
2048 | if (!client->proto) { | |
2049 | zlog_err( | |
2050 | "Got label request from an unidentified client"); | |
2051 | return; | |
2052 | } | |
2053 | if (cmd == ZEBRA_GET_LABEL_CHUNK) | |
2054 | zread_get_label_chunk(client, vrf_id); | |
2055 | else if (cmd == ZEBRA_RELEASE_LABEL_CHUNK) | |
2056 | zread_release_label_chunk(client); | |
2057 | } | |
2058 | } | |
fea12efb | 2059 | } |
2060 | ||
6833ae01 | 2061 | static int zread_pseudowire(int command, struct zserv *client, u_short length, |
2062 | vrf_id_t vrf_id) | |
2063 | { | |
2064 | struct stream *s; | |
2065 | struct zebra_vrf *zvrf; | |
2066 | char ifname[IF_NAMESIZE]; | |
2067 | ifindex_t ifindex; | |
2068 | int type; | |
2069 | int af; | |
2070 | union g_addr nexthop; | |
2071 | uint32_t local_label; | |
2072 | uint32_t remote_label; | |
2073 | uint8_t flags; | |
2074 | union pw_protocol_fields data; | |
2075 | uint8_t protocol; | |
2076 | struct zebra_pw *pw; | |
2077 | ||
2078 | zvrf = vrf_info_lookup(vrf_id); | |
2079 | if (!zvrf) | |
2080 | return -1; | |
2081 | ||
2082 | /* Get input stream. */ | |
2083 | s = client->ibuf; | |
2084 | ||
2085 | /* Get data. */ | |
2086 | stream_get(ifname, s, IF_NAMESIZE); | |
2087 | ifindex = stream_getl(s); | |
2088 | type = stream_getl(s); | |
2089 | af = stream_getl(s); | |
2090 | switch (af) { | |
2091 | case AF_INET: | |
2092 | nexthop.ipv4.s_addr = stream_get_ipv4(s); | |
2093 | break; | |
2094 | case AF_INET6: | |
2095 | stream_get(&nexthop.ipv6, s, 16); | |
2096 | break; | |
2097 | default: | |
2098 | return -1; | |
2099 | } | |
2100 | local_label = stream_getl(s); | |
2101 | remote_label = stream_getl(s); | |
2102 | flags = stream_getc(s); | |
2103 | stream_get(&data, s, sizeof(data)); | |
2104 | protocol = client->proto; | |
2105 | ||
2106 | pw = zebra_pw_find(zvrf, ifname); | |
2107 | switch (command) { | |
2108 | case ZEBRA_PW_ADD: | |
2109 | if (pw) { | |
2110 | zlog_warn("%s: pseudowire %s already exists [%s]", | |
2111 | __func__, ifname, | |
2112 | zserv_command_string(command)); | |
2113 | return -1; | |
2114 | } | |
2115 | ||
2116 | zebra_pw_add(zvrf, ifname, protocol, client); | |
2117 | break; | |
2118 | case ZEBRA_PW_DELETE: | |
2119 | if (!pw) { | |
2120 | zlog_warn("%s: pseudowire %s not found [%s]", __func__, | |
2121 | ifname, zserv_command_string(command)); | |
2122 | return -1; | |
2123 | } | |
2124 | ||
2125 | zebra_pw_del(zvrf, pw); | |
2126 | break; | |
2127 | case ZEBRA_PW_SET: | |
2128 | case ZEBRA_PW_UNSET: | |
2129 | if (!pw) { | |
2130 | zlog_warn("%s: pseudowire %s not found [%s]", __func__, | |
2131 | ifname, zserv_command_string(command)); | |
2132 | return -1; | |
2133 | } | |
2134 | ||
2135 | switch (command) { | |
2136 | case ZEBRA_PW_SET: | |
2137 | pw->enabled = 1; | |
2138 | break; | |
2139 | case ZEBRA_PW_UNSET: | |
2140 | pw->enabled = 0; | |
2141 | break; | |
2142 | } | |
2143 | ||
2144 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
2145 | remote_label, flags, &data); | |
2146 | break; | |
2147 | } | |
2148 | ||
2149 | return 0; | |
2150 | } | |
2151 | ||
d62a17ae | 2152 | /* Cleanup registered nexthops (across VRFs) upon client disconnect. */ |
2153 | static void zebra_client_close_cleanup_rnh(struct zserv *client) | |
fea12efb | 2154 | { |
d62a17ae | 2155 | struct vrf *vrf; |
2156 | struct zebra_vrf *zvrf; | |
fea12efb | 2157 | |
d62a17ae | 2158 | RB_FOREACH(vrf, vrf_id_head, &vrfs_by_id) |
2159 | { | |
2160 | if ((zvrf = vrf->info) != NULL) { | |
2161 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, | |
2162 | RNH_NEXTHOP_TYPE); | |
2163 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, | |
2164 | client, RNH_NEXTHOP_TYPE); | |
2165 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, | |
2166 | RNH_IMPORT_CHECK_TYPE); | |
2167 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, | |
2168 | client, RNH_IMPORT_CHECK_TYPE); | |
2169 | if (client->proto == ZEBRA_ROUTE_LDP) { | |
2170 | hash_iterate(zvrf->lsp_table, | |
2171 | mpls_ldp_lsp_uninstall_all, | |
2172 | zvrf->lsp_table); | |
2173 | mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP); | |
2174 | mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP6); | |
2175 | } | |
2176 | } | |
2177 | } | |
fea12efb | 2178 | } |
d62a17ae | 2179 | |
2180 | /* Close zebra client. */ | |
2181 | static void zebra_client_close(struct zserv *client) | |
fea12efb | 2182 | { |
d62a17ae | 2183 | /* Send client de-registration to BFD */ |
2184 | zebra_ptm_bfd_client_deregister(client->proto); | |
fea12efb | 2185 | |
d62a17ae | 2186 | /* Cleanup any registered nexthops - across all VRFs. */ |
2187 | zebra_client_close_cleanup_rnh(client); | |
ce549947 | 2188 | |
d62a17ae | 2189 | /* Release Label Manager chunks */ |
2190 | release_daemon_chunks(client->proto, client->instance); | |
4b33b75a | 2191 | |
d62a17ae | 2192 | /* Cleanup any FECs registered by this client. */ |
2193 | zebra_mpls_cleanup_fecs_for_client(vrf_info_lookup(VRF_DEFAULT), | |
2194 | client); | |
2195 | ||
6833ae01 | 2196 | /* Remove pseudowires associated with this client */ |
2197 | zebra_pw_client_close(client); | |
2198 | ||
d62a17ae | 2199 | /* Close file descriptor. */ |
2200 | if (client->sock) { | |
2201 | unsigned long nroutes; | |
2202 | ||
2203 | close(client->sock); | |
2204 | nroutes = rib_score_proto(client->proto, client->instance); | |
2205 | zlog_notice( | |
2206 | "client %d disconnected. %lu %s routes removed from the rib", | |
2207 | client->sock, nroutes, | |
2208 | zebra_route_string(client->proto)); | |
2209 | client->sock = -1; | |
2210 | } | |
2211 | ||
2212 | /* Free stream buffers. */ | |
2213 | if (client->ibuf) | |
2214 | stream_free(client->ibuf); | |
2215 | if (client->obuf) | |
2216 | stream_free(client->obuf); | |
2217 | if (client->wb) | |
2218 | buffer_free(client->wb); | |
2219 | ||
2220 | /* Release threads. */ | |
2221 | if (client->t_read) | |
2222 | thread_cancel(client->t_read); | |
2223 | if (client->t_write) | |
2224 | thread_cancel(client->t_write); | |
2225 | if (client->t_suicide) | |
2226 | thread_cancel(client->t_suicide); | |
2227 | ||
2228 | /* Free bitmaps. */ | |
2229 | for (afi_t afi = AFI_IP; afi < AFI_MAX; afi++) | |
2230 | for (int i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2231 | vrf_bitmap_free(client->redist[afi][i]); | |
2232 | ||
2233 | vrf_bitmap_free(client->redist_default); | |
2234 | vrf_bitmap_free(client->ifinfo); | |
2235 | vrf_bitmap_free(client->ridinfo); | |
2236 | ||
2237 | /* Free client structure. */ | |
2238 | listnode_delete(zebrad.client_list, client); | |
2239 | XFREE(MTYPE_TMP, client); | |
718e3744 | 2240 | } |
2241 | ||
2242 | /* Make new client. */ | |
d62a17ae | 2243 | static void zebra_client_create(int sock) |
718e3744 | 2244 | { |
d62a17ae | 2245 | struct zserv *client; |
2246 | int i; | |
2247 | afi_t afi; | |
2248 | ||
2249 | client = XCALLOC(MTYPE_TMP, sizeof(struct zserv)); | |
718e3744 | 2250 | |
d62a17ae | 2251 | /* Make client input/output buffer. */ |
2252 | client->sock = sock; | |
2253 | client->ibuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2254 | client->obuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2255 | client->wb = buffer_new(0); | |
718e3744 | 2256 | |
d62a17ae | 2257 | /* Set table number. */ |
2258 | client->rtm_table = zebrad.rtm_table_default; | |
718e3744 | 2259 | |
d62a17ae | 2260 | client->connect_time = monotime(NULL); |
2261 | /* Initialize flags */ | |
2262 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2263 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2264 | client->redist[afi][i] = vrf_bitmap_init(); | |
2265 | client->redist_default = vrf_bitmap_init(); | |
2266 | client->ifinfo = vrf_bitmap_init(); | |
2267 | client->ridinfo = vrf_bitmap_init(); | |
718e3744 | 2268 | |
d62a17ae | 2269 | /* by default, it's not a synchronous client */ |
2270 | client->is_synchronous = 0; | |
04b02fda | 2271 | |
d62a17ae | 2272 | /* Add this client to linked list. */ |
2273 | listnode_add(zebrad.client_list, client); | |
fea12efb | 2274 | |
d62a17ae | 2275 | /* Make new read thread. */ |
2276 | zebra_event(ZEBRA_READ, sock, client); | |
12f6fb97 | 2277 | |
d62a17ae | 2278 | zebra_vrf_update_all(client); |
718e3744 | 2279 | } |
2280 | ||
e0ae31b8 DS |
2281 | static int zread_interface_set_master(struct zserv *client, int sock, |
2282 | u_short length) | |
2283 | { | |
2284 | struct interface *master; | |
2285 | struct interface *slave; | |
2286 | struct stream *s = client->ibuf; | |
2287 | int ifindex; | |
2288 | vrf_id_t vrf_id; | |
2289 | ||
2290 | vrf_id = stream_getw(s); | |
2291 | ifindex = stream_getl(s); | |
2292 | master = if_lookup_by_index(ifindex, vrf_id); | |
2293 | ||
2294 | vrf_id = stream_getw(s); | |
2295 | ifindex = stream_getl(s); | |
2296 | slave = if_lookup_by_index(ifindex, vrf_id); | |
2297 | ||
2298 | if (!master || !slave) | |
2299 | return 0; | |
2300 | ||
2301 | kernel_interface_set_master(master, slave); | |
2302 | ||
2303 | return 1; | |
2304 | } | |
2305 | ||
718e3744 | 2306 | /* Handler of zebra service request. */ |
d62a17ae | 2307 | static int zebra_client_read(struct thread *thread) |
2308 | { | |
2309 | int sock; | |
2310 | struct zserv *client; | |
2311 | size_t already; | |
2312 | uint16_t length, command; | |
2313 | uint8_t marker, version; | |
2314 | vrf_id_t vrf_id; | |
2315 | struct zebra_vrf *zvrf; | |
2316 | ||
2317 | /* Get thread data. Reset reading thread because I'm running. */ | |
2318 | sock = THREAD_FD(thread); | |
2319 | client = THREAD_ARG(thread); | |
2320 | client->t_read = NULL; | |
2321 | ||
2322 | if (client->t_suicide) { | |
2323 | zebra_client_close(client); | |
2324 | return -1; | |
719e9741 | 2325 | } |
d62a17ae | 2326 | |
2327 | /* Read length and command (if we don't have it already). */ | |
2328 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) { | |
2329 | ssize_t nbyte; | |
2330 | if (((nbyte = stream_read_try(client->ibuf, sock, | |
2331 | ZEBRA_HEADER_SIZE - already)) | |
2332 | == 0) | |
2333 | || (nbyte == -1)) { | |
2334 | if (IS_ZEBRA_DEBUG_EVENT) | |
2335 | zlog_debug("connection closed socket [%d]", | |
2336 | sock); | |
2337 | zebra_client_close(client); | |
2338 | return -1; | |
2339 | } | |
2340 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
2341 | /* Try again later. */ | |
2342 | zebra_event(ZEBRA_READ, sock, client); | |
2343 | return 0; | |
2344 | } | |
2345 | already = ZEBRA_HEADER_SIZE; | |
719e9741 | 2346 | } |
d62a17ae | 2347 | |
2348 | /* Reset to read from the beginning of the incoming packet. */ | |
2349 | stream_set_getp(client->ibuf, 0); | |
2350 | ||
2351 | /* Fetch header values */ | |
2352 | length = stream_getw(client->ibuf); | |
2353 | marker = stream_getc(client->ibuf); | |
2354 | version = stream_getc(client->ibuf); | |
2355 | vrf_id = stream_getw(client->ibuf); | |
2356 | command = stream_getw(client->ibuf); | |
2357 | ||
2358 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
2359 | zlog_err( | |
2360 | "%s: socket %d version mismatch, marker %d, version %d", | |
2361 | __func__, sock, marker, version); | |
2362 | zebra_client_close(client); | |
2363 | return -1; | |
2364 | } | |
2365 | if (length < ZEBRA_HEADER_SIZE) { | |
2366 | zlog_warn( | |
2367 | "%s: socket %d message length %u is less than header size %d", | |
2368 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
2369 | zebra_client_close(client); | |
2370 | return -1; | |
2371 | } | |
2372 | if (length > STREAM_SIZE(client->ibuf)) { | |
2373 | zlog_warn( | |
2374 | "%s: socket %d message length %u exceeds buffer size %lu", | |
2375 | __func__, sock, length, | |
2376 | (u_long)STREAM_SIZE(client->ibuf)); | |
2377 | zebra_client_close(client); | |
2378 | return -1; | |
718e3744 | 2379 | } |
d62a17ae | 2380 | |
2381 | /* Read rest of data. */ | |
2382 | if (already < length) { | |
2383 | ssize_t nbyte; | |
2384 | if (((nbyte = stream_read_try(client->ibuf, sock, | |
2385 | length - already)) | |
2386 | == 0) | |
2387 | || (nbyte == -1)) { | |
2388 | if (IS_ZEBRA_DEBUG_EVENT) | |
2389 | zlog_debug( | |
2390 | "connection closed [%d] when reading zebra data", | |
2391 | sock); | |
2392 | zebra_client_close(client); | |
2393 | return -1; | |
2394 | } | |
2395 | if (nbyte != (ssize_t)(length - already)) { | |
2396 | /* Try again later. */ | |
2397 | zebra_event(ZEBRA_READ, sock, client); | |
2398 | return 0; | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | length -= ZEBRA_HEADER_SIZE; | |
2403 | ||
2404 | /* Debug packet information. */ | |
2405 | if (IS_ZEBRA_DEBUG_EVENT) | |
2406 | zlog_debug("zebra message comes from socket [%d]", sock); | |
2407 | ||
2408 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2409 | zlog_debug("zebra message received [%s] %d in VRF %u", | |
2410 | zserv_command_string(command), length, vrf_id); | |
2411 | ||
2412 | client->last_read_time = monotime(NULL); | |
2413 | client->last_read_cmd = command; | |
2414 | ||
2415 | zvrf = zebra_vrf_lookup_by_id(vrf_id); | |
2416 | if (!zvrf) { | |
2417 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2418 | zlog_debug("zebra received unknown VRF[%u]", vrf_id); | |
2419 | goto zclient_read_out; | |
719e9741 | 2420 | } |
d62a17ae | 2421 | |
2422 | switch (command) { | |
2423 | case ZEBRA_ROUTER_ID_ADD: | |
2424 | zread_router_id_add(client, length, zvrf); | |
2425 | break; | |
2426 | case ZEBRA_ROUTER_ID_DELETE: | |
2427 | zread_router_id_delete(client, length, zvrf); | |
2428 | break; | |
2429 | case ZEBRA_INTERFACE_ADD: | |
2430 | zread_interface_add(client, length, zvrf); | |
2431 | break; | |
2432 | case ZEBRA_INTERFACE_DELETE: | |
2433 | zread_interface_delete(client, length, zvrf); | |
2434 | break; | |
2435 | case ZEBRA_IPV4_ROUTE_ADD: | |
2436 | zread_ipv4_add(client, length, zvrf); | |
2437 | break; | |
2438 | case ZEBRA_IPV4_ROUTE_DELETE: | |
2439 | zread_ipv4_delete(client, length, zvrf); | |
2440 | break; | |
2441 | case ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD: | |
2442 | zread_ipv4_route_ipv6_nexthop_add(client, length, zvrf); | |
2443 | break; | |
2444 | case ZEBRA_IPV4_NEXTHOP_ADD: | |
2445 | zread_ipv4_add(client, length, | |
2446 | zvrf); /* LB: r1.0 merge - id was 1 */ | |
2447 | break; | |
2448 | case ZEBRA_IPV4_NEXTHOP_DELETE: | |
2449 | zread_ipv4_delete(client, length, | |
2450 | zvrf); /* LB: r1.0 merge - id was 1 */ | |
2451 | break; | |
2452 | case ZEBRA_IPV6_ROUTE_ADD: | |
2453 | zread_ipv6_add(client, length, zvrf); | |
2454 | break; | |
2455 | case ZEBRA_IPV6_ROUTE_DELETE: | |
2456 | zread_ipv6_delete(client, length, zvrf); | |
2457 | break; | |
2458 | case ZEBRA_REDISTRIBUTE_ADD: | |
2459 | zebra_redistribute_add(command, client, length, zvrf); | |
2460 | break; | |
2461 | case ZEBRA_REDISTRIBUTE_DELETE: | |
2462 | zebra_redistribute_delete(command, client, length, zvrf); | |
2463 | break; | |
2464 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
2465 | zebra_redistribute_default_add(command, client, length, zvrf); | |
2466 | break; | |
2467 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
2468 | zebra_redistribute_default_delete(command, client, length, | |
2469 | zvrf); | |
2470 | break; | |
2471 | case ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB: | |
2472 | zread_ipv4_nexthop_lookup_mrib(client, length, zvrf); | |
2473 | break; | |
2474 | case ZEBRA_HELLO: | |
2475 | zread_hello(client); | |
2476 | break; | |
2477 | case ZEBRA_NEXTHOP_REGISTER: | |
2478 | zserv_rnh_register(client, sock, length, RNH_NEXTHOP_TYPE, | |
2479 | zvrf); | |
2480 | break; | |
2481 | case ZEBRA_NEXTHOP_UNREGISTER: | |
2482 | zserv_rnh_unregister(client, sock, length, RNH_NEXTHOP_TYPE, | |
2483 | zvrf); | |
2484 | break; | |
2485 | case ZEBRA_IMPORT_ROUTE_REGISTER: | |
2486 | zserv_rnh_register(client, sock, length, RNH_IMPORT_CHECK_TYPE, | |
2487 | zvrf); | |
2488 | break; | |
2489 | case ZEBRA_IMPORT_ROUTE_UNREGISTER: | |
2490 | zserv_rnh_unregister(client, sock, length, | |
2491 | RNH_IMPORT_CHECK_TYPE, zvrf); | |
2492 | break; | |
2493 | case ZEBRA_BFD_DEST_UPDATE: | |
2494 | case ZEBRA_BFD_DEST_REGISTER: | |
2495 | zebra_ptm_bfd_dst_register(client, sock, length, command, zvrf); | |
2496 | break; | |
2497 | case ZEBRA_BFD_DEST_DEREGISTER: | |
2498 | zebra_ptm_bfd_dst_deregister(client, sock, length, zvrf); | |
2499 | break; | |
2500 | case ZEBRA_VRF_UNREGISTER: | |
2501 | zread_vrf_unregister(client, length, zvrf); | |
2502 | break; | |
2503 | case ZEBRA_BFD_CLIENT_REGISTER: | |
2504 | zebra_ptm_bfd_client_register(client, sock, length); | |
2505 | break; | |
2506 | case ZEBRA_INTERFACE_ENABLE_RADV: | |
2507 | #if defined(HAVE_RTADV) | |
2508 | zebra_interface_radv_set(client, sock, length, zvrf, 1); | |
9c3bf1ce | 2509 | #endif |
d62a17ae | 2510 | break; |
2511 | case ZEBRA_INTERFACE_DISABLE_RADV: | |
2512 | #if defined(HAVE_RTADV) | |
2513 | zebra_interface_radv_set(client, sock, length, zvrf, 0); | |
9c3bf1ce | 2514 | #endif |
d62a17ae | 2515 | break; |
2516 | case ZEBRA_MPLS_LABELS_ADD: | |
2517 | case ZEBRA_MPLS_LABELS_DELETE: | |
2518 | zread_mpls_labels(command, client, length, vrf_id); | |
2519 | break; | |
2520 | case ZEBRA_IPMR_ROUTE_STATS: | |
2521 | zebra_ipmr_route_stats(client, sock, length, zvrf); | |
2522 | break; | |
2523 | case ZEBRA_LABEL_MANAGER_CONNECT: | |
2524 | case ZEBRA_GET_LABEL_CHUNK: | |
2525 | case ZEBRA_RELEASE_LABEL_CHUNK: | |
2526 | zread_label_manager_request(command, client, vrf_id); | |
2527 | break; | |
2528 | case ZEBRA_FEC_REGISTER: | |
2529 | zserv_fec_register(client, sock, length); | |
2530 | break; | |
2531 | case ZEBRA_FEC_UNREGISTER: | |
2532 | zserv_fec_unregister(client, sock, length); | |
2533 | break; | |
2534 | case ZEBRA_ADVERTISE_ALL_VNI: | |
2535 | zebra_vxlan_advertise_all_vni(client, sock, length, zvrf); | |
2536 | break; | |
2537 | case ZEBRA_REMOTE_VTEP_ADD: | |
2538 | zebra_vxlan_remote_vtep_add(client, sock, length, zvrf); | |
2539 | break; | |
2540 | case ZEBRA_REMOTE_VTEP_DEL: | |
2541 | zebra_vxlan_remote_vtep_del(client, sock, length, zvrf); | |
2542 | break; | |
2543 | case ZEBRA_REMOTE_MACIP_ADD: | |
2544 | zebra_vxlan_remote_macip_add(client, sock, length, zvrf); | |
2545 | break; | |
2546 | case ZEBRA_REMOTE_MACIP_DEL: | |
2547 | zebra_vxlan_remote_macip_del(client, sock, length, zvrf); | |
baca8cd4 | 2548 | break; |
e0ae31b8 DS |
2549 | case ZEBRA_INTERFACE_SET_MASTER: |
2550 | zread_interface_set_master(client, sock, length); | |
d62a17ae | 2551 | break; |
6833ae01 | 2552 | case ZEBRA_PW_ADD: |
2553 | case ZEBRA_PW_DELETE: | |
2554 | case ZEBRA_PW_SET: | |
2555 | case ZEBRA_PW_UNSET: | |
2556 | zread_pseudowire(command, client, length, vrf_id); | |
2557 | break; | |
d62a17ae | 2558 | default: |
2559 | zlog_info("Zebra received unknown command %d", command); | |
2560 | break; | |
2561 | } | |
2562 | ||
2563 | if (client->t_suicide) { | |
2564 | /* No need to wait for thread callback, just kill immediately. | |
2565 | */ | |
2566 | zebra_client_close(client); | |
2567 | return -1; | |
2568 | } | |
2569 | ||
2570 | zclient_read_out: | |
2571 | stream_reset(client->ibuf); | |
2572 | zebra_event(ZEBRA_READ, sock, client); | |
2573 | return 0; | |
718e3744 | 2574 | } |
2575 | ||
718e3744 | 2576 | |
2577 | /* Accept code of zebra server socket. */ | |
d62a17ae | 2578 | static int zebra_accept(struct thread *thread) |
718e3744 | 2579 | { |
d62a17ae | 2580 | int accept_sock; |
2581 | int client_sock; | |
2582 | struct sockaddr_in client; | |
2583 | socklen_t len; | |
2584 | ||
2585 | accept_sock = THREAD_FD(thread); | |
718e3744 | 2586 | |
d62a17ae | 2587 | /* Reregister myself. */ |
2588 | zebra_event(ZEBRA_SERV, accept_sock, NULL); | |
718e3744 | 2589 | |
d62a17ae | 2590 | len = sizeof(struct sockaddr_in); |
2591 | client_sock = accept(accept_sock, (struct sockaddr *)&client, &len); | |
719e9741 | 2592 | |
d62a17ae | 2593 | if (client_sock < 0) { |
2594 | zlog_warn("Can't accept zebra socket: %s", | |
2595 | safe_strerror(errno)); | |
2596 | return -1; | |
2597 | } | |
718e3744 | 2598 | |
d62a17ae | 2599 | /* Make client socket non-blocking. */ |
2600 | set_nonblocking(client_sock); | |
718e3744 | 2601 | |
d62a17ae | 2602 | /* Create new zebra client. */ |
2603 | zebra_client_create(client_sock); | |
718e3744 | 2604 | |
d62a17ae | 2605 | return 0; |
718e3744 | 2606 | } |
2607 | ||
b9df2d25 | 2608 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 2609 | /* Make zebra's server socket. */ |
d62a17ae | 2610 | static void zebra_serv() |
2611 | { | |
2612 | int ret; | |
2613 | int accept_sock; | |
2614 | struct sockaddr_in addr; | |
2615 | ||
2616 | accept_sock = socket(AF_INET, SOCK_STREAM, 0); | |
2617 | ||
2618 | if (accept_sock < 0) { | |
2619 | zlog_warn("Can't create zserv stream socket: %s", | |
2620 | safe_strerror(errno)); | |
2621 | zlog_warn( | |
2622 | "zebra can't provice full functionality due to above error"); | |
2623 | return; | |
2624 | } | |
2625 | ||
2626 | memset(&addr, 0, sizeof(struct sockaddr_in)); | |
2627 | addr.sin_family = AF_INET; | |
2628 | addr.sin_port = htons(ZEBRA_PORT); | |
6f0e3f6e | 2629 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 2630 | addr.sin_len = sizeof(struct sockaddr_in); |
6f0e3f6e | 2631 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 2632 | addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
2633 | ||
2634 | sockopt_reuseaddr(accept_sock); | |
2635 | sockopt_reuseport(accept_sock); | |
2636 | ||
2637 | if (zserv_privs.change(ZPRIVS_RAISE)) | |
2638 | zlog_err("Can't raise privileges"); | |
2639 | ||
2640 | ret = bind(accept_sock, (struct sockaddr *)&addr, | |
2641 | sizeof(struct sockaddr_in)); | |
2642 | if (ret < 0) { | |
2643 | zlog_warn("Can't bind to stream socket: %s", | |
2644 | safe_strerror(errno)); | |
2645 | zlog_warn( | |
2646 | "zebra can't provice full functionality due to above error"); | |
2647 | close(accept_sock); /* Avoid sd leak. */ | |
2648 | return; | |
2649 | } | |
2650 | ||
2651 | if (zserv_privs.change(ZPRIVS_LOWER)) | |
2652 | zlog_err("Can't lower privileges"); | |
2653 | ||
2654 | ret = listen(accept_sock, 1); | |
2655 | if (ret < 0) { | |
2656 | zlog_warn("Can't listen to stream socket: %s", | |
2657 | safe_strerror(errno)); | |
2658 | zlog_warn( | |
2659 | "zebra can't provice full functionality due to above error"); | |
2660 | close(accept_sock); /* Avoid sd leak. */ | |
2661 | return; | |
2662 | } | |
2663 | ||
2664 | zebra_event(ZEBRA_SERV, accept_sock, NULL); | |
718e3744 | 2665 | } |
fbedba64 | 2666 | #else /* HAVE_TCP_ZEBRA */ |
718e3744 | 2667 | |
2668 | /* For sockaddr_un. */ | |
2669 | #include <sys/un.h> | |
2670 | ||
2671 | /* zebra server UNIX domain socket. */ | |
d62a17ae | 2672 | static void zebra_serv_un(const char *path) |
2673 | { | |
2674 | int ret; | |
2675 | int sock, len; | |
2676 | struct sockaddr_un serv; | |
2677 | mode_t old_mask; | |
2678 | ||
2679 | /* First of all, unlink existing socket */ | |
2680 | unlink(path); | |
2681 | ||
2682 | /* Set umask */ | |
2683 | old_mask = umask(0077); | |
2684 | ||
2685 | /* Make UNIX domain socket. */ | |
2686 | sock = socket(AF_UNIX, SOCK_STREAM, 0); | |
2687 | if (sock < 0) { | |
2688 | zlog_warn("Can't create zserv unix socket: %s", | |
2689 | safe_strerror(errno)); | |
2690 | zlog_warn( | |
2691 | "zebra can't provide full functionality due to above error"); | |
2692 | return; | |
2693 | } | |
2694 | ||
2695 | /* Make server socket. */ | |
2696 | memset(&serv, 0, sizeof(struct sockaddr_un)); | |
2697 | serv.sun_family = AF_UNIX; | |
2698 | strncpy(serv.sun_path, path, strlen(path)); | |
6f0e3f6e | 2699 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
d62a17ae | 2700 | len = serv.sun_len = SUN_LEN(&serv); |
718e3744 | 2701 | #else |
d62a17ae | 2702 | len = sizeof(serv.sun_family) + strlen(serv.sun_path); |
6f0e3f6e | 2703 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2704 | |
d62a17ae | 2705 | ret = bind(sock, (struct sockaddr *)&serv, len); |
2706 | if (ret < 0) { | |
2707 | zlog_warn("Can't bind to unix socket %s: %s", path, | |
2708 | safe_strerror(errno)); | |
2709 | zlog_warn( | |
2710 | "zebra can't provide full functionality due to above error"); | |
2711 | close(sock); | |
2712 | return; | |
2713 | } | |
2714 | ||
2715 | ret = listen(sock, 5); | |
2716 | if (ret < 0) { | |
2717 | zlog_warn("Can't listen to unix socket %s: %s", path, | |
2718 | safe_strerror(errno)); | |
2719 | zlog_warn( | |
2720 | "zebra can't provide full functionality due to above error"); | |
2721 | close(sock); | |
2722 | return; | |
2723 | } | |
2724 | ||
2725 | umask(old_mask); | |
2726 | ||
2727 | zebra_event(ZEBRA_SERV, sock, NULL); | |
718e3744 | 2728 | } |
fbedba64 | 2729 | #endif /* HAVE_TCP_ZEBRA */ |
6b0655a2 | 2730 | |
718e3744 | 2731 | |
d62a17ae | 2732 | static void zebra_event(enum event event, int sock, struct zserv *client) |
2733 | { | |
2734 | switch (event) { | |
2735 | case ZEBRA_SERV: | |
2736 | thread_add_read(zebrad.master, zebra_accept, client, sock, | |
2737 | NULL); | |
2738 | break; | |
2739 | case ZEBRA_READ: | |
2740 | client->t_read = NULL; | |
2741 | thread_add_read(zebrad.master, zebra_client_read, client, sock, | |
2742 | &client->t_read); | |
2743 | break; | |
2744 | case ZEBRA_WRITE: | |
2745 | /**/ | |
2746 | break; | |
2747 | } | |
718e3744 | 2748 | } |
6b0655a2 | 2749 | |
04b02fda | 2750 | #define ZEBRA_TIME_BUF 32 |
d62a17ae | 2751 | static char *zserv_time_buf(time_t *time1, char *buf, int buflen) |
04b02fda | 2752 | { |
d62a17ae | 2753 | struct tm *tm; |
2754 | time_t now; | |
04b02fda | 2755 | |
d62a17ae | 2756 | assert(buf != NULL); |
2757 | assert(buflen >= ZEBRA_TIME_BUF); | |
2758 | assert(time1 != NULL); | |
04b02fda | 2759 | |
d62a17ae | 2760 | if (!*time1) { |
2761 | snprintf(buf, buflen, "never "); | |
2762 | return (buf); | |
2763 | } | |
04b02fda | 2764 | |
d62a17ae | 2765 | now = monotime(NULL); |
2766 | now -= *time1; | |
2767 | tm = gmtime(&now); | |
04b02fda | 2768 | |
d62a17ae | 2769 | if (now < ONE_DAY_SECOND) |
2770 | snprintf(buf, buflen, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
2771 | tm->tm_sec); | |
2772 | else if (now < ONE_WEEK_SECOND) | |
2773 | snprintf(buf, buflen, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
2774 | tm->tm_min); | |
96ade3ed | 2775 | else |
d62a17ae | 2776 | snprintf(buf, buflen, "%02dw%dd%02dh", tm->tm_yday / 7, |
2777 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
2778 | return buf; | |
2779 | } | |
2780 | ||
2781 | static void zebra_show_client_detail(struct vty *vty, struct zserv *client) | |
2782 | { | |
2783 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2784 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
2785 | ||
2786 | vty_out(vty, "Client: %s", zebra_route_string(client->proto)); | |
2787 | if (client->instance) | |
2788 | vty_out(vty, " Instance: %d", client->instance); | |
2789 | vty_out(vty, "\n"); | |
2790 | ||
2791 | vty_out(vty, "------------------------ \n"); | |
2792 | vty_out(vty, "FD: %d \n", client->sock); | |
2793 | vty_out(vty, "Route Table ID: %d \n", client->rtm_table); | |
2794 | ||
2795 | vty_out(vty, "Connect Time: %s \n", | |
2796 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF)); | |
2797 | if (client->nh_reg_time) { | |
2798 | vty_out(vty, "Nexthop Registry Time: %s \n", | |
2799 | zserv_time_buf(&client->nh_reg_time, nhbuf, | |
2800 | ZEBRA_TIME_BUF)); | |
2801 | if (client->nh_last_upd_time) | |
2802 | vty_out(vty, "Nexthop Last Update Time: %s \n", | |
2803 | zserv_time_buf(&client->nh_last_upd_time, mbuf, | |
2804 | ZEBRA_TIME_BUF)); | |
2805 | else | |
2806 | vty_out(vty, "No Nexthop Update sent\n"); | |
2807 | } else | |
2808 | vty_out(vty, "Not registered for Nexthop Updates\n"); | |
2809 | ||
2810 | vty_out(vty, "Last Msg Rx Time: %s \n", | |
2811 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF)); | |
2812 | vty_out(vty, "Last Msg Tx Time: %s \n", | |
2813 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF)); | |
2814 | if (client->last_read_time) | |
2815 | vty_out(vty, "Last Rcvd Cmd: %s \n", | |
2816 | zserv_command_string(client->last_read_cmd)); | |
2817 | if (client->last_write_time) | |
2818 | vty_out(vty, "Last Sent Cmd: %s \n", | |
2819 | zserv_command_string(client->last_write_cmd)); | |
2820 | vty_out(vty, "\n"); | |
2821 | ||
2822 | vty_out(vty, "Type Add Update Del \n"); | |
2823 | vty_out(vty, "================================================== \n"); | |
2824 | vty_out(vty, "IPv4 %-12d%-12d%-12d\n", client->v4_route_add_cnt, | |
2825 | client->v4_route_upd8_cnt, client->v4_route_del_cnt); | |
2826 | vty_out(vty, "IPv6 %-12d%-12d%-12d\n", client->v6_route_add_cnt, | |
2827 | client->v6_route_upd8_cnt, client->v6_route_del_cnt); | |
2828 | vty_out(vty, "Redist:v4 %-12d%-12d%-12d\n", client->redist_v4_add_cnt, | |
2829 | 0, client->redist_v4_del_cnt); | |
2830 | vty_out(vty, "Redist:v6 %-12d%-12d%-12d\n", client->redist_v6_add_cnt, | |
2831 | 0, client->redist_v6_del_cnt); | |
2832 | vty_out(vty, "Connected %-12d%-12d%-12d\n", client->ifadd_cnt, 0, | |
2833 | client->ifdel_cnt); | |
2834 | vty_out(vty, "BFD peer %-12d%-12d%-12d\n", client->bfd_peer_add_cnt, | |
2835 | client->bfd_peer_upd8_cnt, client->bfd_peer_del_cnt); | |
2836 | vty_out(vty, "Interface Up Notifications: %d\n", client->ifup_cnt); | |
2837 | vty_out(vty, "Interface Down Notifications: %d\n", client->ifdown_cnt); | |
2838 | vty_out(vty, "VNI add notifications: %d\n", client->vniadd_cnt); | |
2839 | vty_out(vty, "VNI delete notifications: %d\n", client->vnidel_cnt); | |
2840 | vty_out(vty, "MAC-IP add notifications: %d\n", client->macipadd_cnt); | |
2841 | vty_out(vty, "MAC-IP delete notifications: %d\n", client->macipdel_cnt); | |
2842 | ||
2843 | vty_out(vty, "\n"); | |
2844 | return; | |
2845 | } | |
2846 | ||
2847 | static void zebra_show_client_brief(struct vty *vty, struct zserv *client) | |
2848 | { | |
2849 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2850 | char wbuf[ZEBRA_TIME_BUF]; | |
2851 | ||
2852 | vty_out(vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d\n", | |
2853 | zebra_route_string(client->proto), | |
2854 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2855 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2856 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2857 | client->v4_route_add_cnt + client->v4_route_upd8_cnt, | |
2858 | client->v4_route_del_cnt, | |
2859 | client->v6_route_add_cnt + client->v6_route_upd8_cnt, | |
2860 | client->v6_route_del_cnt); | |
2861 | } | |
2862 | ||
2863 | struct zserv *zebra_find_client(u_char proto) | |
2864 | { | |
2865 | struct listnode *node, *nnode; | |
2866 | struct zserv *client; | |
2867 | ||
2868 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { | |
2869 | if (client->proto == proto) | |
2870 | return client; | |
2871 | } | |
2872 | ||
2873 | return NULL; | |
8ed6821e | 2874 | } |
2875 | ||
9bf75362 | 2876 | #ifdef HAVE_NETLINK |
718e3744 | 2877 | /* Display default rtm_table for all clients. */ |
2878 | DEFUN (show_table, | |
2879 | show_table_cmd, | |
2880 | "show table", | |
2881 | SHOW_STR | |
2882 | "default routing table to use for all clients\n") | |
2883 | { | |
d62a17ae | 2884 | vty_out(vty, "table %d\n", zebrad.rtm_table_default); |
2885 | return CMD_SUCCESS; | |
718e3744 | 2886 | } |
2887 | ||
6147e2c6 | 2888 | DEFUN (config_table, |
718e3744 | 2889 | config_table_cmd, |
2890 | "table TABLENO", | |
2891 | "Configure target kernel routing table\n" | |
2892 | "TABLE integer\n") | |
2893 | { | |
d62a17ae | 2894 | zebrad.rtm_table_default = strtol(argv[1]->arg, (char **)0, 10); |
2895 | return CMD_SUCCESS; | |
718e3744 | 2896 | } |
2897 | ||
813d4307 DW |
2898 | DEFUN (no_config_table, |
2899 | no_config_table_cmd, | |
6af6be86 | 2900 | "no table [TABLENO]", |
813d4307 DW |
2901 | NO_STR |
2902 | "Configure target kernel routing table\n" | |
2903 | "TABLE integer\n") | |
2904 | { | |
d62a17ae | 2905 | zebrad.rtm_table_default = 0; |
2906 | return CMD_SUCCESS; | |
813d4307 | 2907 | } |
9bf75362 | 2908 | #endif |
813d4307 | 2909 | |
647e4f1f | 2910 | DEFUN (ip_forwarding, |
2911 | ip_forwarding_cmd, | |
2912 | "ip forwarding", | |
2913 | IP_STR | |
2914 | "Turn on IP forwarding") | |
2915 | { | |
d62a17ae | 2916 | int ret; |
647e4f1f | 2917 | |
d62a17ae | 2918 | ret = ipforward(); |
2919 | if (ret == 0) | |
2920 | ret = ipforward_on(); | |
647e4f1f | 2921 | |
d62a17ae | 2922 | if (ret == 0) { |
2923 | vty_out(vty, "Can't turn on IP forwarding\n"); | |
2924 | return CMD_WARNING_CONFIG_FAILED; | |
2925 | } | |
647e4f1f | 2926 | |
d62a17ae | 2927 | return CMD_SUCCESS; |
647e4f1f | 2928 | } |
2929 | ||
718e3744 | 2930 | DEFUN (no_ip_forwarding, |
2931 | no_ip_forwarding_cmd, | |
2932 | "no ip forwarding", | |
2933 | NO_STR | |
2934 | IP_STR | |
2935 | "Turn off IP forwarding") | |
2936 | { | |
d62a17ae | 2937 | int ret; |
718e3744 | 2938 | |
d62a17ae | 2939 | ret = ipforward(); |
2940 | if (ret != 0) | |
2941 | ret = ipforward_off(); | |
718e3744 | 2942 | |
d62a17ae | 2943 | if (ret != 0) { |
2944 | vty_out(vty, "Can't turn off IP forwarding\n"); | |
2945 | return CMD_WARNING_CONFIG_FAILED; | |
2946 | } | |
718e3744 | 2947 | |
d62a17ae | 2948 | return CMD_SUCCESS; |
718e3744 | 2949 | } |
2950 | ||
57282a31 DS |
2951 | DEFUN (show_zebra, |
2952 | show_zebra_cmd, | |
2953 | "show zebra", | |
2954 | SHOW_STR | |
2955 | "Zebra information\n") | |
2956 | { | |
d62a17ae | 2957 | struct vrf *vrf; |
57282a31 | 2958 | |
d62a17ae | 2959 | vty_out(vty, |
2960 | " Route Route Neighbor LSP LSP\n"); | |
2961 | vty_out(vty, | |
2962 | "VRF Installs Removals Updates Installs Removals\n"); | |
2963 | RB_FOREACH(vrf, vrf_name_head, &vrfs_by_name) | |
2964 | { | |
2965 | struct zebra_vrf *zvrf = vrf->info; | |
9d303b37 DL |
2966 | vty_out(vty, "%-25s %10" PRIu64 " %10" PRIu64 " %10" PRIu64 |
2967 | " %10" PRIu64 " %10" PRIu64 "\n", | |
d62a17ae | 2968 | vrf->name, zvrf->installs, zvrf->removals, |
2969 | zvrf->neigh_updates, zvrf->lsp_installs, | |
2970 | zvrf->lsp_removals); | |
2971 | } | |
57282a31 | 2972 | |
d62a17ae | 2973 | return CMD_SUCCESS; |
57282a31 DS |
2974 | } |
2975 | ||
718e3744 | 2976 | /* This command is for debugging purpose. */ |
2977 | DEFUN (show_zebra_client, | |
2978 | show_zebra_client_cmd, | |
2979 | "show zebra client", | |
2980 | SHOW_STR | |
49d73233 | 2981 | "Zebra information\n" |
b9ee4999 | 2982 | "Client information\n") |
718e3744 | 2983 | { |
d62a17ae | 2984 | struct listnode *node; |
2985 | struct zserv *client; | |
718e3744 | 2986 | |
d62a17ae | 2987 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) |
2988 | zebra_show_client_detail(vty, client); | |
04b02fda | 2989 | |
d62a17ae | 2990 | return CMD_SUCCESS; |
04b02fda DS |
2991 | } |
2992 | ||
2993 | /* This command is for debugging purpose. */ | |
2994 | DEFUN (show_zebra_client_summary, | |
2995 | show_zebra_client_summary_cmd, | |
2996 | "show zebra client summary", | |
2997 | SHOW_STR | |
b9ee4999 DS |
2998 | "Zebra information brief\n" |
2999 | "Client information brief\n" | |
3000 | "Brief Summary\n") | |
04b02fda | 3001 | { |
d62a17ae | 3002 | struct listnode *node; |
3003 | struct zserv *client; | |
04b02fda | 3004 | |
d62a17ae | 3005 | vty_out(vty, |
3006 | "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes \n"); | |
3007 | vty_out(vty, | |
3008 | "--------------------------------------------------------------------------------\n"); | |
04b02fda | 3009 | |
d62a17ae | 3010 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) |
3011 | zebra_show_client_brief(vty, client); | |
fb018d25 | 3012 | |
d62a17ae | 3013 | vty_out(vty, "Routes column shows (added+updated)/deleted\n"); |
3014 | return CMD_SUCCESS; | |
718e3744 | 3015 | } |
3016 | ||
3017 | /* Table configuration write function. */ | |
d62a17ae | 3018 | static int config_write_table(struct vty *vty) |
718e3744 | 3019 | { |
d62a17ae | 3020 | if (zebrad.rtm_table_default) |
3021 | vty_out(vty, "table %d\n", zebrad.rtm_table_default); | |
3022 | return 0; | |
718e3744 | 3023 | } |
3024 | ||
3025 | /* table node for routing tables. */ | |
d62a17ae | 3026 | static struct cmd_node table_node = {TABLE_NODE, |
3027 | "", /* This node has no interface. */ | |
3028 | 1}; | |
6b0655a2 | 3029 | |
718e3744 | 3030 | /* Only display ip forwarding is enabled or not. */ |
3031 | DEFUN (show_ip_forwarding, | |
3032 | show_ip_forwarding_cmd, | |
3033 | "show ip forwarding", | |
3034 | SHOW_STR | |
3035 | IP_STR | |
3036 | "IP forwarding status\n") | |
3037 | { | |
d62a17ae | 3038 | int ret; |
718e3744 | 3039 | |
d62a17ae | 3040 | ret = ipforward(); |
718e3744 | 3041 | |
d62a17ae | 3042 | if (ret == 0) |
3043 | vty_out(vty, "IP forwarding is off\n"); | |
3044 | else | |
3045 | vty_out(vty, "IP forwarding is on\n"); | |
3046 | return CMD_SUCCESS; | |
718e3744 | 3047 | } |
3048 | ||
718e3744 | 3049 | /* Only display ipv6 forwarding is enabled or not. */ |
3050 | DEFUN (show_ipv6_forwarding, | |
3051 | show_ipv6_forwarding_cmd, | |
3052 | "show ipv6 forwarding", | |
3053 | SHOW_STR | |
3054 | "IPv6 information\n" | |
3055 | "Forwarding status\n") | |
3056 | { | |
d62a17ae | 3057 | int ret; |
718e3744 | 3058 | |
d62a17ae | 3059 | ret = ipforward_ipv6(); |
718e3744 | 3060 | |
d62a17ae | 3061 | switch (ret) { |
3062 | case -1: | |
3063 | vty_out(vty, "ipv6 forwarding is unknown\n"); | |
3064 | break; | |
3065 | case 0: | |
3066 | vty_out(vty, "ipv6 forwarding is %s\n", "off"); | |
3067 | break; | |
3068 | case 1: | |
3069 | vty_out(vty, "ipv6 forwarding is %s\n", "on"); | |
3070 | break; | |
3071 | default: | |
3072 | vty_out(vty, "ipv6 forwarding is %s\n", "off"); | |
3073 | break; | |
3074 | } | |
3075 | return CMD_SUCCESS; | |
718e3744 | 3076 | } |
3077 | ||
55906724 | 3078 | DEFUN (ipv6_forwarding, |
3079 | ipv6_forwarding_cmd, | |
3080 | "ipv6 forwarding", | |
3081 | IPV6_STR | |
3082 | "Turn on IPv6 forwarding") | |
3083 | { | |
d62a17ae | 3084 | int ret; |
55906724 | 3085 | |
d62a17ae | 3086 | ret = ipforward_ipv6(); |
3087 | if (ret == 0) | |
3088 | ret = ipforward_ipv6_on(); | |
41d3fc96 | 3089 | |
d62a17ae | 3090 | if (ret == 0) { |
3091 | vty_out(vty, "Can't turn on IPv6 forwarding\n"); | |
3092 | return CMD_WARNING_CONFIG_FAILED; | |
3093 | } | |
55906724 | 3094 | |
d62a17ae | 3095 | return CMD_SUCCESS; |
55906724 | 3096 | } |
3097 | ||
718e3744 | 3098 | DEFUN (no_ipv6_forwarding, |
3099 | no_ipv6_forwarding_cmd, | |
3100 | "no ipv6 forwarding", | |
3101 | NO_STR | |
55906724 | 3102 | IPV6_STR |
3103 | "Turn off IPv6 forwarding") | |
718e3744 | 3104 | { |
d62a17ae | 3105 | int ret; |
718e3744 | 3106 | |
d62a17ae | 3107 | ret = ipforward_ipv6(); |
3108 | if (ret != 0) | |
3109 | ret = ipforward_ipv6_off(); | |
41d3fc96 | 3110 | |
d62a17ae | 3111 | if (ret != 0) { |
3112 | vty_out(vty, "Can't turn off IPv6 forwarding\n"); | |
3113 | return CMD_WARNING_CONFIG_FAILED; | |
3114 | } | |
718e3744 | 3115 | |
d62a17ae | 3116 | return CMD_SUCCESS; |
718e3744 | 3117 | } |
3118 | ||
718e3744 | 3119 | /* IPForwarding configuration write function. */ |
d62a17ae | 3120 | static int config_write_forwarding(struct vty *vty) |
718e3744 | 3121 | { |
d62a17ae | 3122 | /* FIXME: Find better place for that. */ |
3123 | router_id_write(vty); | |
18a6dce6 | 3124 | |
d62a17ae | 3125 | if (!ipforward()) |
3126 | vty_out(vty, "no ip forwarding\n"); | |
3127 | if (!ipforward_ipv6()) | |
3128 | vty_out(vty, "no ipv6 forwarding\n"); | |
3129 | vty_out(vty, "!\n"); | |
3130 | return 0; | |
718e3744 | 3131 | } |
3132 | ||
3133 | /* table node for routing tables. */ | |
d62a17ae | 3134 | static struct cmd_node forwarding_node = {FORWARDING_NODE, |
3135 | "", /* This node has no interface. */ | |
3136 | 1}; | |
718e3744 | 3137 | |
718e3744 | 3138 | /* Initialisation of zebra and installation of commands. */ |
d62a17ae | 3139 | void zebra_init(void) |
718e3744 | 3140 | { |
d62a17ae | 3141 | /* Client list init. */ |
3142 | zebrad.client_list = list_new(); | |
718e3744 | 3143 | |
d62a17ae | 3144 | /* Install configuration write function. */ |
3145 | install_node(&table_node, config_write_table); | |
3146 | install_node(&forwarding_node, config_write_forwarding); | |
718e3744 | 3147 | |
d62a17ae | 3148 | install_element(VIEW_NODE, &show_ip_forwarding_cmd); |
3149 | install_element(CONFIG_NODE, &ip_forwarding_cmd); | |
3150 | install_element(CONFIG_NODE, &no_ip_forwarding_cmd); | |
3151 | install_element(ENABLE_NODE, &show_zebra_cmd); | |
3152 | install_element(ENABLE_NODE, &show_zebra_client_cmd); | |
3153 | install_element(ENABLE_NODE, &show_zebra_client_summary_cmd); | |
718e3744 | 3154 | |
3155 | #ifdef HAVE_NETLINK | |
d62a17ae | 3156 | install_element(VIEW_NODE, &show_table_cmd); |
3157 | install_element(CONFIG_NODE, &config_table_cmd); | |
3158 | install_element(CONFIG_NODE, &no_config_table_cmd); | |
718e3744 | 3159 | #endif /* HAVE_NETLINK */ |
3160 | ||
d62a17ae | 3161 | install_element(VIEW_NODE, &show_ipv6_forwarding_cmd); |
3162 | install_element(CONFIG_NODE, &ipv6_forwarding_cmd); | |
3163 | install_element(CONFIG_NODE, &no_ipv6_forwarding_cmd); | |
7514fb77 | 3164 | |
d62a17ae | 3165 | /* Route-map */ |
3166 | zebra_route_map_init(); | |
718e3744 | 3167 | } |
97be79f9 DO |
3168 | |
3169 | /* Make zebra server socket, wiping any existing one (see bug #403). */ | |
d62a17ae | 3170 | void zebra_zserv_socket_init(char *path) |
97be79f9 DO |
3171 | { |
3172 | #ifdef HAVE_TCP_ZEBRA | |
d62a17ae | 3173 | zebra_serv(); |
97be79f9 | 3174 | #else |
d62a17ae | 3175 | zebra_serv_un(path ? path : ZEBRA_SERV_PATH); |
97be79f9 DO |
3176 | #endif /* HAVE_TCP_ZEBRA */ |
3177 | } |