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