]>
Commit | Line | Data |
---|---|---|
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> | |
689f5a8c | 22 | #include <sys/un.h> |
718e3744 | 23 | |
24 | #include "prefix.h" | |
25 | #include "command.h" | |
26 | #include "if.h" | |
27 | #include "thread.h" | |
28 | #include "stream.h" | |
29 | #include "memory.h" | |
4a1ab8e4 | 30 | #include "zebra_memory.h" |
718e3744 | 31 | #include "table.h" |
32 | #include "rib.h" | |
33 | #include "network.h" | |
34 | #include "sockunion.h" | |
35 | #include "log.h" | |
36 | #include "zclient.h" | |
edd7c245 | 37 | #include "privs.h" |
719e9741 | 38 | #include "network.h" |
39 | #include "buffer.h" | |
fb018d25 | 40 | #include "nexthop.h" |
78104b9b | 41 | #include "vrf.h" |
689f5a8c | 42 | #include "libfrr.h" |
718e3744 | 43 | |
44 | #include "zebra/zserv.h" | |
7c551956 DS |
45 | #include "zebra/zebra_ns.h" |
46 | #include "zebra/zebra_vrf.h" | |
18a6dce6 | 47 | #include "zebra/router-id.h" |
718e3744 | 48 | #include "zebra/redistribute.h" |
49 | #include "zebra/debug.h" | |
50 | #include "zebra/ipforward.h" | |
fb018d25 | 51 | #include "zebra/zebra_rnh.h" |
5c610faf | 52 | #include "zebra/rt_netlink.h" |
88177fe3 DS |
53 | #include "zebra/interface.h" |
54 | #include "zebra/zebra_ptm.h" | |
4a04e5f7 | 55 | #include "zebra/rtadv.h" |
ce549947 | 56 | #include "zebra/zebra_mpls.h" |
e3be0432 | 57 | #include "zebra/zebra_mroute.h" |
fea12efb | 58 | #include "zebra/label_manager.h" |
13d60d35 | 59 | #include "zebra/zebra_vxlan.h" |
e0ae31b8 | 60 | #include "zebra/rt.h" |
6b0655a2 | 61 | |
718e3744 | 62 | /* Event list of zebra. */ |
63 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
64 | ||
d62a17ae | 65 | static void zebra_event(enum event event, int sock, struct zserv *client); |
ccf3557b | 66 | |
edd7c245 | 67 | extern struct zebra_privs_t zserv_privs; |
6b0655a2 | 68 | |
d62a17ae | 69 | static void zebra_client_close(struct zserv *client); |
70 | ||
71 | static int zserv_delayed_close(struct thread *thread) | |
72 | { | |
73 | struct zserv *client = THREAD_ARG(thread); | |
74 | ||
75 | client->t_suicide = NULL; | |
76 | zebra_client_close(client); | |
77 | return 0; | |
78 | } | |
79 | ||
80 | static int zserv_flush_data(struct thread *thread) | |
81 | { | |
82 | struct zserv *client = THREAD_ARG(thread); | |
83 | ||
84 | client->t_write = NULL; | |
85 | if (client->t_suicide) { | |
86 | zebra_client_close(client); | |
87 | return -1; | |
88 | } | |
89 | switch (buffer_flush_available(client->wb, client->sock)) { | |
90 | case BUFFER_ERROR: | |
91 | zlog_warn( | |
92 | "%s: buffer_flush_available failed on zserv client fd %d, " | |
93 | "closing", | |
94 | __func__, client->sock); | |
95 | zebra_client_close(client); | |
96 | client = NULL; | |
97 | break; | |
98 | case BUFFER_PENDING: | |
99 | client->t_write = NULL; | |
100 | thread_add_write(zebrad.master, zserv_flush_data, client, | |
101 | client->sock, &client->t_write); | |
102 | break; | |
103 | case BUFFER_EMPTY: | |
104 | break; | |
105 | } | |
106 | ||
107 | if (client) | |
108 | client->last_write_time = monotime(NULL); | |
109 | return 0; | |
110 | } | |
111 | ||
112 | int zebra_server_send_message(struct zserv *client) | |
113 | { | |
114 | if (client->t_suicide) | |
115 | return -1; | |
116 | ||
117 | if (client->is_synchronous) | |
118 | return 0; | |
119 | ||
120 | stream_set_getp(client->obuf, 0); | |
121 | client->last_write_cmd = stream_getw_from(client->obuf, 6); | |
122 | switch (buffer_write(client->wb, client->sock, | |
123 | STREAM_DATA(client->obuf), | |
124 | stream_get_endp(client->obuf))) { | |
125 | case BUFFER_ERROR: | |
126 | zlog_warn( | |
127 | "%s: buffer_write failed to zserv client fd %d, closing", | |
128 | __func__, client->sock); | |
129 | /* Schedule a delayed close since many of the functions that | |
130 | call this | |
131 | one do not check the return code. They do not allow for the | |
132 | possibility that an I/O error may have caused the client to | |
133 | be | |
134 | deleted. */ | |
135 | client->t_suicide = NULL; | |
136 | thread_add_event(zebrad.master, zserv_delayed_close, client, 0, | |
137 | &client->t_suicide); | |
138 | return -1; | |
139 | case BUFFER_EMPTY: | |
140 | THREAD_OFF(client->t_write); | |
141 | break; | |
142 | case BUFFER_PENDING: | |
143 | thread_add_write(zebrad.master, zserv_flush_data, client, | |
144 | client->sock, &client->t_write); | |
145 | break; | |
146 | } | |
147 | ||
148 | client->last_write_time = monotime(NULL); | |
149 | return 0; | |
150 | } | |
151 | ||
152 | void zserv_create_header(struct stream *s, uint16_t cmd, vrf_id_t vrf_id) | |
153 | { | |
154 | /* length placeholder, caller can update */ | |
155 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
156 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
157 | stream_putc(s, ZSERV_VERSION); | |
158 | stream_putw(s, vrf_id); | |
159 | stream_putw(s, cmd); | |
160 | } | |
161 | ||
162 | static void zserv_encode_interface(struct stream *s, struct interface *ifp) | |
163 | { | |
164 | /* Interface information. */ | |
165 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
166 | stream_putl(s, ifp->ifindex); | |
167 | stream_putc(s, ifp->status); | |
168 | stream_putq(s, ifp->flags); | |
169 | stream_putc(s, ifp->ptm_enable); | |
170 | stream_putc(s, ifp->ptm_status); | |
171 | stream_putl(s, ifp->metric); | |
172 | stream_putl(s, ifp->speed); | |
173 | stream_putl(s, ifp->mtu); | |
174 | stream_putl(s, ifp->mtu6); | |
175 | stream_putl(s, ifp->bandwidth); | |
176 | stream_putl(s, ifp->ll_type); | |
177 | stream_putl(s, ifp->hw_addr_len); | |
178 | if (ifp->hw_addr_len) | |
179 | stream_put(s, ifp->hw_addr, ifp->hw_addr_len); | |
180 | ||
181 | /* Then, Traffic Engineering parameters if any */ | |
182 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { | |
183 | stream_putc(s, 1); | |
184 | zebra_interface_link_params_write(s, ifp); | |
185 | } else | |
186 | stream_putc(s, 0); | |
187 | ||
188 | /* Write packet size. */ | |
189 | stream_putw_at(s, 0, stream_get_endp(s)); | |
190 | } | |
191 | ||
192 | static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) | |
193 | { | |
194 | struct vrf_data data; | |
195 | ||
196 | data.l.table_id = zvrf->table_id; | |
197 | /* Pass the tableid */ | |
198 | stream_put(s, &data, sizeof(struct vrf_data)); | |
199 | /* Interface information. */ | |
200 | stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); | |
201 | ||
202 | /* Write packet size. */ | |
203 | stream_putw_at(s, 0, stream_get_endp(s)); | |
12f6fb97 DS |
204 | } |
205 | ||
718e3744 | 206 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 207 | /* |
208 | * This function is called in the following situations: | |
209 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
210 | * from the client. | |
211 | * - at startup, when zebra figures out the available interfaces | |
212 | * - when an interface is added (where support for | |
213 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
214 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
215 | * received) | |
216 | */ | |
d62a17ae | 217 | int zsend_interface_add(struct zserv *client, struct interface *ifp) |
718e3744 | 218 | { |
d62a17ae | 219 | struct stream *s; |
718e3744 | 220 | |
d62a17ae | 221 | s = client->obuf; |
222 | stream_reset(s); | |
718e3744 | 223 | |
d62a17ae | 224 | zserv_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); |
225 | zserv_encode_interface(s, ifp); | |
718e3744 | 226 | |
d62a17ae | 227 | client->ifadd_cnt++; |
228 | return zebra_server_send_message(client); | |
718e3744 | 229 | } |
230 | ||
231 | /* Interface deletion from zebra daemon. */ | |
d62a17ae | 232 | int zsend_interface_delete(struct zserv *client, struct interface *ifp) |
718e3744 | 233 | { |
d62a17ae | 234 | struct stream *s; |
718e3744 | 235 | |
d62a17ae | 236 | s = client->obuf; |
237 | stream_reset(s); | |
718e3744 | 238 | |
d62a17ae | 239 | zserv_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); |
240 | zserv_encode_interface(s, ifp); | |
718e3744 | 241 | |
d62a17ae | 242 | client->ifdel_cnt++; |
243 | return zebra_server_send_message(client); | |
718e3744 | 244 | } |
245 | ||
d62a17ae | 246 | int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 | 247 | { |
d62a17ae | 248 | struct stream *s; |
12f6fb97 | 249 | |
d62a17ae | 250 | s = client->obuf; |
251 | stream_reset(s); | |
12f6fb97 | 252 | |
d62a17ae | 253 | zserv_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); |
254 | zserv_encode_vrf(s, zvrf); | |
12f6fb97 | 255 | |
d62a17ae | 256 | client->vrfadd_cnt++; |
257 | return zebra_server_send_message(client); | |
12f6fb97 DS |
258 | } |
259 | ||
260 | /* VRF deletion from zebra daemon. */ | |
d62a17ae | 261 | int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 | 262 | { |
d62a17ae | 263 | struct stream *s; |
12f6fb97 | 264 | |
d62a17ae | 265 | s = client->obuf; |
266 | stream_reset(s); | |
12f6fb97 | 267 | |
d62a17ae | 268 | zserv_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); |
269 | zserv_encode_vrf(s, zvrf); | |
12f6fb97 | 270 | |
d62a17ae | 271 | client->vrfdel_cnt++; |
272 | return zebra_server_send_message(client); | |
12f6fb97 DS |
273 | } |
274 | ||
d62a17ae | 275 | int zsend_interface_link_params(struct zserv *client, struct interface *ifp) |
16f1b9ee | 276 | { |
d62a17ae | 277 | struct stream *s; |
16f1b9ee | 278 | |
d62a17ae | 279 | /* Check this client need interface information. */ |
280 | if (!client->ifinfo) | |
281 | return 0; | |
16f1b9ee | 282 | |
d62a17ae | 283 | if (!ifp->link_params) |
284 | return 0; | |
285 | s = client->obuf; | |
286 | stream_reset(s); | |
16f1b9ee | 287 | |
d62a17ae | 288 | zserv_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); |
16f1b9ee | 289 | |
d62a17ae | 290 | /* Add Interface Index */ |
291 | stream_putl(s, ifp->ifindex); | |
16f1b9ee | 292 | |
d62a17ae | 293 | /* Then TE Link Parameters */ |
294 | if (zebra_interface_link_params_write(s, ifp) == 0) | |
295 | return 0; | |
16f1b9ee | 296 | |
d62a17ae | 297 | /* Write packet size. */ |
298 | stream_putw_at(s, 0, stream_get_endp(s)); | |
16f1b9ee | 299 | |
d62a17ae | 300 | return zebra_server_send_message(client); |
16f1b9ee OD |
301 | } |
302 | ||
b9df2d25 | 303 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
d62a17ae | 304 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. |
b9df2d25 | 305 | * |
306 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
307 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
308 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
309 | * sent from zebra to the client | |
310 | * - redistribute new address info to all clients in the following situations | |
311 | * - at startup, when zebra figures out the available interfaces | |
312 | * - when an interface is added (where support for | |
313 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
314 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
315 | * received) | |
316 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
317 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
318 | * - when an RTM_NEWADDR message is received from the kernel, | |
d62a17ae | 319 | * |
320 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
b9df2d25 | 321 | * |
322 | * zsend_interface_address(DELETE) | |
d62a17ae | 323 | * ^ |
324 | * | | |
325 | * zebra_interface_address_delete_update | |
b9df2d25 | 326 | * ^ ^ ^ |
6eb8827d | 327 | * | | if_delete_update |
328 | * | | | |
b9df2d25 | 329 | * ip_address_uninstall connected_delete_ipv4 |
330 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
331 | * ^ ^ | |
332 | * | | | |
333 | * | RTM_NEWADDR on routing/netlink socket | |
334 | * | | |
335 | * vty commands: | |
336 | * "no ip address A.B.C.D/M [label LINE]" | |
337 | * "no ip address A.B.C.D/M secondary" | |
338 | * ["no ipv6 address X:X::X:X/M"] | |
339 | * | |
340 | */ | |
d62a17ae | 341 | int zsend_interface_address(int cmd, struct zserv *client, |
342 | struct interface *ifp, struct connected *ifc) | |
343 | { | |
344 | int blen; | |
345 | struct stream *s; | |
346 | struct prefix *p; | |
347 | ||
348 | s = client->obuf; | |
349 | stream_reset(s); | |
350 | ||
351 | zserv_create_header(s, cmd, ifp->vrf_id); | |
352 | stream_putl(s, ifp->ifindex); | |
353 | ||
354 | /* Interface address flag. */ | |
355 | stream_putc(s, ifc->flags); | |
356 | ||
357 | /* Prefix information. */ | |
358 | p = ifc->address; | |
359 | stream_putc(s, p->family); | |
360 | blen = prefix_blen(p); | |
361 | stream_put(s, &p->u.prefix, blen); | |
362 | ||
363 | /* | |
364 | * XXX gnu version does not send prefixlen for | |
365 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
366 | * but zebra_interface_address_delete_read() in the gnu version | |
367 | * expects to find it | |
368 | */ | |
369 | stream_putc(s, p->prefixlen); | |
370 | ||
371 | /* Destination. */ | |
372 | p = ifc->destination; | |
373 | if (p) | |
374 | stream_put(s, &p->u.prefix, blen); | |
375 | else | |
376 | stream_put(s, NULL, blen); | |
718e3744 | 377 | |
d62a17ae | 378 | /* Write packet size. */ |
379 | stream_putw_at(s, 0, stream_get_endp(s)); | |
718e3744 | 380 | |
d62a17ae | 381 | client->connected_rt_add_cnt++; |
382 | return zebra_server_send_message(client); | |
718e3744 | 383 | } |
384 | ||
d62a17ae | 385 | static int zsend_interface_nbr_address(int cmd, struct zserv *client, |
386 | struct interface *ifp, | |
387 | struct nbr_connected *ifc) | |
a80beece | 388 | { |
d62a17ae | 389 | int blen; |
390 | struct stream *s; | |
391 | struct prefix *p; | |
a80beece | 392 | |
d62a17ae | 393 | s = client->obuf; |
394 | stream_reset(s); | |
a80beece | 395 | |
d62a17ae | 396 | zserv_create_header(s, cmd, ifp->vrf_id); |
397 | stream_putl(s, ifp->ifindex); | |
a80beece | 398 | |
d62a17ae | 399 | /* Prefix information. */ |
400 | p = ifc->address; | |
401 | stream_putc(s, p->family); | |
402 | blen = prefix_blen(p); | |
403 | stream_put(s, &p->u.prefix, blen); | |
a80beece | 404 | |
d62a17ae | 405 | /* |
406 | * XXX gnu version does not send prefixlen for | |
407 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
408 | * but zebra_interface_address_delete_read() in the gnu version | |
409 | * expects to find it | |
410 | */ | |
411 | stream_putc(s, p->prefixlen); | |
a80beece | 412 | |
d62a17ae | 413 | /* Write packet size. */ |
414 | stream_putw_at(s, 0, stream_get_endp(s)); | |
a80beece | 415 | |
d62a17ae | 416 | return zebra_server_send_message(client); |
a80beece DS |
417 | } |
418 | ||
419 | /* Interface address addition. */ | |
d62a17ae | 420 | static void zebra_interface_nbr_address_add_update(struct interface *ifp, |
421 | struct nbr_connected *ifc) | |
422 | { | |
423 | struct listnode *node, *nnode; | |
424 | struct zserv *client; | |
425 | struct prefix *p; | |
426 | ||
427 | if (IS_ZEBRA_DEBUG_EVENT) { | |
428 | char buf[INET6_ADDRSTRLEN]; | |
429 | ||
430 | p = ifc->address; | |
431 | zlog_debug( | |
432 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
433 | inet_ntop(p->family, &p->u.prefix, buf, | |
434 | INET6_ADDRSTRLEN), | |
435 | p->prefixlen, ifc->ifp->name); | |
436 | } | |
a80beece | 437 | |
d62a17ae | 438 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) |
439 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
440 | client, ifp, ifc); | |
a80beece DS |
441 | } |
442 | ||
443 | /* Interface address deletion. */ | |
d62a17ae | 444 | static void zebra_interface_nbr_address_delete_update(struct interface *ifp, |
445 | struct nbr_connected *ifc) | |
446 | { | |
447 | struct listnode *node, *nnode; | |
448 | struct zserv *client; | |
449 | struct prefix *p; | |
450 | ||
451 | if (IS_ZEBRA_DEBUG_EVENT) { | |
452 | char buf[INET6_ADDRSTRLEN]; | |
453 | ||
454 | p = ifc->address; | |
455 | zlog_debug( | |
456 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
457 | inet_ntop(p->family, &p->u.prefix, buf, | |
458 | INET6_ADDRSTRLEN), | |
459 | p->prefixlen, ifc->ifp->name); | |
460 | } | |
a80beece | 461 | |
d62a17ae | 462 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) |
463 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, | |
464 | client, ifp, ifc); | |
a80beece DS |
465 | } |
466 | ||
c8e264b6 | 467 | /* Send addresses on interface to client */ |
d62a17ae | 468 | int zsend_interface_addresses(struct zserv *client, struct interface *ifp) |
c8e264b6 | 469 | { |
d62a17ae | 470 | struct listnode *cnode, *cnnode; |
471 | struct connected *c; | |
472 | struct nbr_connected *nc; | |
c8e264b6 | 473 | |
d62a17ae | 474 | /* Send interface addresses. */ |
475 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
476 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
477 | continue; | |
c8e264b6 | 478 | |
d62a17ae | 479 | if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, |
480 | ifp, c) | |
481 | < 0) | |
482 | return -1; | |
483 | } | |
c8e264b6 | 484 | |
d62a17ae | 485 | /* Send interface neighbors. */ |
486 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { | |
487 | if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
488 | client, ifp, nc) | |
489 | < 0) | |
490 | return -1; | |
491 | } | |
c8e264b6 | 492 | |
d62a17ae | 493 | return 0; |
c8e264b6 | 494 | } |
495 | ||
496 | /* Notify client about interface moving from one VRF to another. | |
497 | * Whether client is interested in old and new VRF is checked by caller. | |
498 | */ | |
d62a17ae | 499 | int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, |
500 | vrf_id_t vrf_id) | |
c8e264b6 | 501 | { |
d62a17ae | 502 | struct stream *s; |
c8e264b6 | 503 | |
d62a17ae | 504 | s = client->obuf; |
505 | stream_reset(s); | |
c8e264b6 | 506 | |
d62a17ae | 507 | zserv_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); |
c8e264b6 | 508 | |
d62a17ae | 509 | /* Fill in the ifIndex of the interface and its new VRF (id) */ |
510 | stream_putl(s, ifp->ifindex); | |
511 | stream_putw(s, vrf_id); | |
c8e264b6 | 512 | |
d62a17ae | 513 | /* Write packet size. */ |
514 | stream_putw_at(s, 0, stream_get_endp(s)); | |
c8e264b6 | 515 | |
d62a17ae | 516 | client->if_vrfchg_cnt++; |
517 | return zebra_server_send_message(client); | |
c8e264b6 | 518 | } |
519 | ||
1d20ccf3 | 520 | /* Add new nbr connected IPv6 address */ |
d62a17ae | 521 | void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) |
a80beece | 522 | { |
d62a17ae | 523 | struct nbr_connected *ifc; |
524 | struct prefix p; | |
a80beece | 525 | |
d62a17ae | 526 | p.family = AF_INET6; |
527 | IPV6_ADDR_COPY(&p.u.prefix, address); | |
528 | p.prefixlen = IPV6_MAX_PREFIXLEN; | |
a80beece | 529 | |
d62a17ae | 530 | if (!(ifc = listnode_head(ifp->nbr_connected))) { |
531 | /* new addition */ | |
532 | ifc = nbr_connected_new(); | |
533 | ifc->address = prefix_new(); | |
534 | ifc->ifp = ifp; | |
535 | listnode_add(ifp->nbr_connected, ifc); | |
536 | } | |
a80beece | 537 | |
d62a17ae | 538 | prefix_copy(ifc->address, &p); |
a80beece | 539 | |
d62a17ae | 540 | zebra_interface_nbr_address_add_update(ifp, ifc); |
5c610faf | 541 | |
d62a17ae | 542 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); |
a80beece DS |
543 | } |
544 | ||
d62a17ae | 545 | void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) |
a80beece | 546 | { |
d62a17ae | 547 | struct nbr_connected *ifc; |
548 | struct prefix p; | |
a80beece | 549 | |
d62a17ae | 550 | p.family = AF_INET6; |
551 | IPV6_ADDR_COPY(&p.u.prefix, address); | |
552 | p.prefixlen = IPV6_MAX_PREFIXLEN; | |
a80beece | 553 | |
d62a17ae | 554 | ifc = nbr_connected_check(ifp, &p); |
555 | if (!ifc) | |
556 | return; | |
a80beece | 557 | |
d62a17ae | 558 | listnode_delete(ifp->nbr_connected, ifc); |
a80beece | 559 | |
d62a17ae | 560 | zebra_interface_nbr_address_delete_update(ifp, ifc); |
a80beece | 561 | |
d62a17ae | 562 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); |
5c610faf | 563 | |
d62a17ae | 564 | nbr_connected_free(ifc); |
a80beece DS |
565 | } |
566 | ||
b9df2d25 | 567 | /* |
568 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
569 | * ZEBRA_INTERFACE_DOWN. | |
570 | * | |
571 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
572 | * the clients in one of 2 situations: | |
573 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
574 | * - a vty command modifying the bandwidth of an interface is received. | |
575 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
576 | */ | |
d62a17ae | 577 | int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 578 | { |
d62a17ae | 579 | struct stream *s; |
718e3744 | 580 | |
d62a17ae | 581 | s = client->obuf; |
582 | stream_reset(s); | |
718e3744 | 583 | |
d62a17ae | 584 | zserv_create_header(s, cmd, ifp->vrf_id); |
585 | zserv_encode_interface(s, ifp); | |
718e3744 | 586 | |
d62a17ae | 587 | if (cmd == ZEBRA_INTERFACE_UP) |
588 | client->ifup_cnt++; | |
589 | else | |
590 | client->ifdown_cnt++; | |
04b02fda | 591 | |
d62a17ae | 592 | return zebra_server_send_message(client); |
718e3744 | 593 | } |
594 | ||
b9df2d25 | 595 | /* |
5048fe14 | 596 | * This is the new function to announce and withdraw redistributed routes, used |
597 | * by Zebra. This is the old zsend_route_multipath() function. That function | |
598 | * was duplicating code to send a lot of information that was essentially thrown | |
599 | * away or ignored by the receiver. This is the leaner function that is not a | |
600 | * duplicate of the zapi_ipv4_route_add/del. | |
b9df2d25 | 601 | * |
d62a17ae | 602 | * The primary difference is that this function merely sends a single NH instead |
603 | * of | |
5048fe14 | 604 | * all the nexthops. |
b9df2d25 | 605 | */ |
d62a17ae | 606 | int zsend_redistribute_route(int add, struct zserv *client, struct prefix *p, |
607 | struct prefix *src_p, struct route_entry *re) | |
608 | { | |
609 | afi_t afi; | |
610 | int cmd; | |
611 | int psize; | |
612 | struct stream *s; | |
613 | struct nexthop *nexthop; | |
614 | unsigned long nhnummark = 0, messmark = 0; | |
615 | int nhnum = 0; | |
616 | u_char zapi_flags = 0; | |
617 | struct nexthop dummy_nh; | |
618 | ||
619 | afi = family2afi(p->family); | |
620 | if (add) { | |
621 | switch (afi) { | |
622 | case AFI_IP: | |
623 | cmd = ZEBRA_REDISTRIBUTE_IPV4_ADD; | |
624 | client->redist_v4_add_cnt++; | |
625 | break; | |
626 | case AFI_IP6: | |
627 | cmd = ZEBRA_REDISTRIBUTE_IPV6_ADD; | |
628 | client->redist_v6_add_cnt++; | |
629 | break; | |
630 | default: | |
631 | return -1; | |
632 | } | |
633 | } else { | |
634 | switch (afi) { | |
635 | case AFI_IP: | |
636 | cmd = ZEBRA_REDISTRIBUTE_IPV4_DEL; | |
637 | client->redist_v4_del_cnt++; | |
638 | break; | |
639 | case AFI_IP6: | |
640 | cmd = ZEBRA_REDISTRIBUTE_IPV6_DEL; | |
641 | client->redist_v6_del_cnt++; | |
642 | break; | |
643 | default: | |
644 | return -1; | |
645 | } | |
5048fe14 | 646 | } |
647 | ||
d62a17ae | 648 | s = client->obuf; |
649 | stream_reset(s); | |
650 | memset(&dummy_nh, 0, sizeof(struct nexthop)); | |
10fbd59a | 651 | |
d62a17ae | 652 | zserv_create_header(s, cmd, re->vrf_id); |
653 | ||
654 | /* Put type and nexthop. */ | |
655 | stream_putc(s, re->type); | |
656 | stream_putw(s, re->instance); | |
657 | stream_putl(s, re->flags); | |
658 | ||
659 | /* marker for message flags field */ | |
660 | messmark = stream_get_endp(s); | |
661 | stream_putc(s, 0); | |
662 | ||
663 | /* Prefix. */ | |
664 | psize = PSIZE(p->prefixlen); | |
665 | stream_putc(s, p->prefixlen); | |
666 | stream_write(s, (u_char *)&p->u.prefix, psize); | |
667 | ||
668 | if (src_p) { | |
669 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_SRCPFX); | |
670 | psize = PSIZE(src_p->prefixlen); | |
671 | stream_putc(s, src_p->prefixlen); | |
672 | stream_write(s, (u_char *)&src_p->u.prefix, psize); | |
078430f6 | 673 | } |
d62a17ae | 674 | |
675 | for (nexthop = re->nexthop; nexthop; nexthop = nexthop->next) { | |
676 | /* We don't send any nexthops when there's a multipath */ | |
677 | if (re->nexthop_active_num > 1 | |
678 | && client->proto != ZEBRA_ROUTE_LDP) { | |
679 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
680 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
681 | ||
682 | stream_putc(s, 1); | |
683 | if (p->family == AF_INET) { | |
684 | stream_put_in_addr(s, &dummy_nh.gate.ipv4); | |
685 | } else if (p->family == AF_INET6) { | |
686 | stream_write(s, (u_char *)&dummy_nh.gate.ipv6, | |
687 | 16); | |
688 | } else { | |
689 | /* We don't handle anything else now, abort */ | |
690 | zlog_err( | |
691 | "%s: Unable to redistribute route of unknown family, %d\n", | |
692 | __func__, p->family); | |
693 | return -1; | |
694 | } | |
695 | stream_putc(s, 1); | |
696 | stream_putl(s, 0); /* dummy ifindex */ | |
697 | break; | |
698 | } | |
699 | ||
700 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) { | |
701 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
702 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
703 | if (nhnummark == 0) { | |
704 | nhnummark = stream_get_endp(s); | |
705 | stream_putc(s, 1); /* placeholder */ | |
706 | } | |
707 | nhnum++; | |
708 | ||
709 | switch (nexthop->type) { | |
710 | case NEXTHOP_TYPE_IPV4: | |
711 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
712 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
713 | break; | |
714 | case NEXTHOP_TYPE_IPV6: | |
715 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
716 | /* Only BGP supports IPv4 prefix with IPv6 NH, | |
717 | * so kill this */ | |
718 | if (p->family == AF_INET) | |
719 | stream_put_in_addr(s, | |
720 | &dummy_nh.gate.ipv4); | |
721 | else | |
722 | stream_write( | |
723 | s, | |
724 | (u_char *)&nexthop->gate.ipv6, | |
725 | 16); | |
726 | break; | |
727 | default: | |
728 | if (cmd == ZEBRA_REDISTRIBUTE_IPV4_ADD | |
729 | || cmd == ZEBRA_REDISTRIBUTE_IPV4_DEL) { | |
730 | struct in_addr empty; | |
731 | memset(&empty, 0, | |
732 | sizeof(struct in_addr)); | |
733 | stream_write(s, (u_char *)&empty, | |
734 | IPV4_MAX_BYTELEN); | |
735 | } else { | |
736 | struct in6_addr empty; | |
737 | memset(&empty, 0, | |
738 | sizeof(struct in6_addr)); | |
739 | stream_write(s, (u_char *)&empty, | |
740 | IPV6_MAX_BYTELEN); | |
741 | } | |
742 | } | |
743 | ||
744 | /* Interface index. */ | |
745 | stream_putc(s, 1); | |
746 | stream_putl(s, nexthop->ifindex); | |
747 | ||
748 | /* ldpd needs all nexthops */ | |
749 | if (client->proto != ZEBRA_ROUTE_LDP) | |
750 | break; | |
751 | } | |
078430f6 | 752 | } |
d62a17ae | 753 | |
754 | /* Distance */ | |
755 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_DISTANCE); | |
756 | stream_putc(s, re->distance); | |
757 | ||
758 | /* Metric */ | |
759 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_METRIC); | |
760 | stream_putl(s, re->metric); | |
761 | ||
762 | /* Tag */ | |
763 | if (re->tag) { | |
764 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
765 | stream_putl(s, re->tag); | |
078430f6 DS |
766 | } |
767 | ||
d62a17ae | 768 | /* MTU */ |
769 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_MTU); | |
770 | stream_putl(s, re->mtu); | |
771 | ||
772 | /* write real message flags value */ | |
773 | stream_putc_at(s, messmark, zapi_flags); | |
774 | ||
775 | /* Write next-hop number */ | |
776 | if (nhnummark) | |
777 | stream_putc_at(s, nhnummark, nhnum); | |
778 | ||
779 | /* Write packet size. */ | |
780 | stream_putw_at(s, 0, stream_get_endp(s)); | |
781 | ||
782 | return zebra_server_send_message(client); | |
783 | } | |
784 | ||
785 | static int zsend_write_nexthop(struct stream *s, struct nexthop *nexthop) | |
786 | { | |
787 | stream_putc(s, nexthop->type); | |
788 | switch (nexthop->type) { | |
789 | case NEXTHOP_TYPE_IPV4: | |
790 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
791 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
792 | stream_putl(s, nexthop->ifindex); | |
793 | break; | |
794 | case NEXTHOP_TYPE_IPV6: | |
795 | stream_put(s, &nexthop->gate.ipv6, 16); | |
796 | break; | |
797 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
798 | stream_put(s, &nexthop->gate.ipv6, 16); | |
799 | stream_putl(s, nexthop->ifindex); | |
800 | break; | |
801 | case NEXTHOP_TYPE_IFINDEX: | |
802 | stream_putl(s, nexthop->ifindex); | |
803 | break; | |
804 | default: | |
805 | /* do nothing */ | |
806 | break; | |
807 | } | |
808 | return 1; | |
fb018d25 DS |
809 | } |
810 | ||
811 | /* Nexthop register */ | |
d62a17ae | 812 | static int zserv_rnh_register(struct zserv *client, int sock, u_short length, |
813 | rnh_type_t type, struct zebra_vrf *zvrf) | |
814 | { | |
815 | struct rnh *rnh; | |
816 | struct stream *s; | |
817 | struct prefix p; | |
818 | u_short l = 0; | |
819 | u_char flags = 0; | |
820 | ||
821 | if (IS_ZEBRA_DEBUG_NHT) | |
822 | zlog_debug( | |
823 | "rnh_register msg from client %s: length=%d, type=%s\n", | |
824 | zebra_route_string(client->proto), length, | |
825 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route"); | |
826 | ||
827 | s = client->ibuf; | |
828 | ||
829 | client->nh_reg_time = monotime(NULL); | |
830 | ||
831 | while (l < length) { | |
832 | flags = stream_getc(s); | |
833 | p.family = stream_getw(s); | |
834 | p.prefixlen = stream_getc(s); | |
835 | l += 4; | |
836 | if (p.family == AF_INET) { | |
837 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
838 | l += IPV4_MAX_BYTELEN; | |
839 | } else if (p.family == AF_INET6) { | |
840 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
841 | l += IPV6_MAX_BYTELEN; | |
842 | } else { | |
843 | zlog_err( | |
844 | "rnh_register: Received unknown family type %d\n", | |
845 | p.family); | |
846 | return -1; | |
847 | } | |
848 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type); | |
849 | if (type == RNH_NEXTHOP_TYPE) { | |
850 | if (flags | |
851 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
852 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
853 | else if (!flags | |
854 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
855 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
856 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
857 | if (flags | |
858 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
859 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
9d303b37 DL |
860 | else if (!flags && CHECK_FLAG(rnh->flags, |
861 | ZEBRA_NHT_EXACT_MATCH)) | |
d62a17ae | 862 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); |
863 | } | |
864 | ||
865 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
866 | /* Anything not AF_INET/INET6 has been filtered out above */ | |
867 | zebra_evaluate_rnh(zvrf_id(zvrf), p.family, 1, type, &p); | |
078430f6 | 868 | } |
d62a17ae | 869 | return 0; |
870 | } | |
871 | ||
872 | /* Nexthop register */ | |
873 | static int zserv_rnh_unregister(struct zserv *client, int sock, u_short length, | |
874 | rnh_type_t type, struct zebra_vrf *zvrf) | |
875 | { | |
876 | struct rnh *rnh; | |
877 | struct stream *s; | |
878 | struct prefix p; | |
879 | u_short l = 0; | |
880 | ||
881 | if (IS_ZEBRA_DEBUG_NHT) | |
882 | zlog_debug("rnh_unregister msg from client %s: length=%d\n", | |
883 | zebra_route_string(client->proto), length); | |
884 | ||
885 | s = client->ibuf; | |
886 | ||
887 | while (l < length) { | |
888 | (void)stream_getc( | |
889 | s); // Connected or not. Not used in this function | |
890 | p.family = stream_getw(s); | |
891 | p.prefixlen = stream_getc(s); | |
892 | l += 4; | |
893 | if (p.family == AF_INET) { | |
894 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
895 | l += IPV4_MAX_BYTELEN; | |
896 | } else if (p.family == AF_INET6) { | |
897 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
898 | l += IPV6_MAX_BYTELEN; | |
899 | } else { | |
900 | zlog_err( | |
901 | "rnh_register: Received unknown family type %d\n", | |
902 | p.family); | |
903 | return -1; | |
904 | } | |
905 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
906 | if (rnh) { | |
907 | client->nh_dereg_time = monotime(NULL); | |
908 | zebra_remove_rnh_client(rnh, client, type); | |
909 | } | |
04b02fda | 910 | } |
d62a17ae | 911 | return 0; |
fb018d25 DS |
912 | } |
913 | ||
b5ab78e6 | 914 | #define ZEBRA_MIN_FEC_LENGTH 5 |
7abc04e6 | 915 | |
5aba114a | 916 | /* FEC register */ |
d62a17ae | 917 | static int zserv_fec_register(struct zserv *client, int sock, u_short length) |
918 | { | |
919 | struct stream *s; | |
920 | struct zebra_vrf *zvrf; | |
921 | u_short l = 0; | |
922 | struct prefix p; | |
923 | u_int16_t flags; | |
924 | u_int32_t label_index = MPLS_INVALID_LABEL_INDEX; | |
925 | ||
926 | s = client->ibuf; | |
927 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
928 | if (!zvrf) | |
929 | return 0; // unexpected | |
930 | ||
931 | /* | |
932 | * The minimum amount of data that can be sent for one fec | |
933 | * registration | |
934 | */ | |
935 | if (length < ZEBRA_MIN_FEC_LENGTH) { | |
936 | zlog_err( | |
937 | "fec_register: Received a fec register of length %d, it is of insufficient size to properly decode", | |
938 | length); | |
939 | return -1; | |
940 | } | |
941 | ||
942 | while (l < length) { | |
943 | flags = stream_getw(s); | |
944 | p.family = stream_getw(s); | |
945 | if (p.family != AF_INET && p.family != AF_INET6) { | |
946 | zlog_err( | |
947 | "fec_register: Received unknown family type %d\n", | |
948 | p.family); | |
949 | return -1; | |
950 | } | |
951 | p.prefixlen = stream_getc(s); | |
952 | l += 5; | |
953 | stream_get(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
954 | l += PSIZE(p.prefixlen); | |
955 | if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { | |
956 | label_index = stream_getl(s); | |
957 | l += 4; | |
958 | } else | |
959 | label_index = MPLS_INVALID_LABEL_INDEX; | |
960 | zebra_mpls_fec_register(zvrf, &p, label_index, client); | |
961 | } | |
962 | ||
963 | return 0; | |
5aba114a DS |
964 | } |
965 | ||
966 | /* FEC unregister */ | |
d62a17ae | 967 | static int zserv_fec_unregister(struct zserv *client, int sock, u_short length) |
968 | { | |
969 | struct stream *s; | |
970 | struct zebra_vrf *zvrf; | |
971 | u_short l = 0; | |
972 | struct prefix p; | |
973 | // u_int16_t flags; | |
974 | ||
975 | s = client->ibuf; | |
976 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
977 | if (!zvrf) | |
978 | return 0; // unexpected | |
979 | ||
980 | /* | |
981 | * The minimum amount of data that can be sent for one | |
982 | * fec unregistration | |
983 | */ | |
984 | if (length < ZEBRA_MIN_FEC_LENGTH) { | |
985 | zlog_err( | |
986 | "fec_unregister: Received a fec unregister of length %d, it is of insufficient size to properly decode", | |
987 | length); | |
988 | return -1; | |
989 | } | |
990 | ||
991 | while (l < length) { | |
992 | // flags = stream_getw(s); | |
993 | (void)stream_getw(s); | |
994 | p.family = stream_getw(s); | |
995 | if (p.family != AF_INET && p.family != AF_INET6) { | |
996 | zlog_err( | |
997 | "fec_unregister: Received unknown family type %d\n", | |
998 | p.family); | |
999 | return -1; | |
1000 | } | |
1001 | p.prefixlen = stream_getc(s); | |
1002 | l += 5; | |
1003 | stream_get(&p.u.prefix, s, PSIZE(p.prefixlen)); | |
1004 | l += PSIZE(p.prefixlen); | |
1005 | zebra_mpls_fec_unregister(zvrf, &p, client); | |
1006 | } | |
1007 | ||
1008 | return 0; | |
5aba114a DS |
1009 | } |
1010 | ||
6f61a5a3 EM |
1011 | /* |
1012 | Modified version of zsend_ipv4_nexthop_lookup(): | |
1013 | Query unicast rib if nexthop is not found on mrib. | |
1014 | Returns both route metric and protocol distance. | |
1015 | */ | |
d62a17ae | 1016 | static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, |
1017 | struct in_addr addr, | |
1018 | struct route_entry *re, | |
1019 | struct zebra_vrf *zvrf) | |
1020 | { | |
1021 | struct stream *s; | |
1022 | unsigned long nump; | |
1023 | u_char num; | |
1024 | struct nexthop *nexthop; | |
1025 | ||
1026 | /* Get output stream. */ | |
1027 | s = client->obuf; | |
1028 | stream_reset(s); | |
1029 | ||
1030 | /* Fill in result. */ | |
1031 | zserv_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); | |
1032 | stream_put_in_addr(s, &addr); | |
1033 | ||
1034 | if (re) { | |
1035 | stream_putc(s, re->distance); | |
1036 | stream_putl(s, re->metric); | |
1037 | num = 0; | |
1038 | nump = stream_get_endp( | |
1039 | s); /* remember position for nexthop_num */ | |
1040 | stream_putc(s, 0); /* reserve room for nexthop_num */ | |
1041 | /* Only non-recursive routes are elegible to resolve the nexthop | |
1042 | * we | |
1043 | * are looking up. Therefore, we will just iterate over the top | |
1044 | * chain of nexthops. */ | |
1045 | for (nexthop = re->nexthop; nexthop; nexthop = nexthop->next) | |
1046 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
1047 | num += zsend_write_nexthop(s, nexthop); | |
1048 | ||
1049 | stream_putc_at(s, nump, num); /* store nexthop_num */ | |
1050 | } else { | |
1051 | stream_putc(s, 0); /* distance */ | |
1052 | stream_putl(s, 0); /* metric */ | |
1053 | stream_putc(s, 0); /* nexthop_num */ | |
1054 | } | |
1055 | ||
1056 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1057 | ||
1058 | return zebra_server_send_message(client); | |
6f61a5a3 EM |
1059 | } |
1060 | ||
18a6dce6 | 1061 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
d62a17ae | 1062 | int zsend_router_id_update(struct zserv *client, struct prefix *p, |
1063 | vrf_id_t vrf_id) | |
18a6dce6 | 1064 | { |
d62a17ae | 1065 | struct stream *s; |
1066 | int blen; | |
18a6dce6 | 1067 | |
d62a17ae | 1068 | /* Check this client need interface information. */ |
1069 | if (!vrf_bitmap_check(client->ridinfo, vrf_id)) | |
1070 | return 0; | |
18a6dce6 | 1071 | |
d62a17ae | 1072 | s = client->obuf; |
1073 | stream_reset(s); | |
18a6dce6 | 1074 | |
d62a17ae | 1075 | /* Message type. */ |
1076 | zserv_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); | |
18a6dce6 | 1077 | |
d62a17ae | 1078 | /* Prefix information. */ |
1079 | stream_putc(s, p->family); | |
1080 | blen = prefix_blen(p); | |
1081 | stream_put(s, &p->u.prefix, blen); | |
1082 | stream_putc(s, p->prefixlen); | |
18a6dce6 | 1083 | |
d62a17ae | 1084 | /* Write packet size. */ |
1085 | stream_putw_at(s, 0, stream_get_endp(s)); | |
18a6dce6 | 1086 | |
d62a17ae | 1087 | return zebra_server_send_message(client); |
18a6dce6 | 1088 | } |
6b0655a2 | 1089 | |
6833ae01 | 1090 | /* |
1091 | * Function used by Zebra to send a PW status update to LDP daemon | |
1092 | */ | |
1093 | int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) | |
1094 | { | |
1095 | struct stream *s; | |
1096 | ||
1097 | s = client->obuf; | |
1098 | stream_reset(s); | |
1099 | ||
1100 | zserv_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); | |
1101 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
1102 | stream_putl(s, pw->ifindex); | |
1103 | stream_putl(s, pw->status); | |
1104 | ||
1105 | /* Put length at the first point of the stream. */ | |
1106 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1107 | ||
1108 | return zebra_server_send_message(client); | |
1109 | } | |
1110 | ||
718e3744 | 1111 | /* Register zebra server interface information. Send current all |
1112 | interface and address information. */ | |
d62a17ae | 1113 | static int zread_interface_add(struct zserv *client, u_short length, |
1114 | struct zebra_vrf *zvrf) | |
718e3744 | 1115 | { |
d62a17ae | 1116 | struct vrf *vrf; |
1117 | struct listnode *ifnode, *ifnnode; | |
1118 | struct interface *ifp; | |
718e3744 | 1119 | |
d62a17ae | 1120 | /* Interface information is needed. */ |
1121 | vrf_bitmap_set(client->ifinfo, zvrf_id(zvrf)); | |
718e3744 | 1122 | |
d62a17ae | 1123 | RB_FOREACH(vrf, vrf_id_head, &vrfs_by_id) |
1124 | { | |
1125 | for (ALL_LIST_ELEMENTS(vrf->iflist, ifnode, ifnnode, ifp)) { | |
1126 | /* Skip pseudo interface. */ | |
1127 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1128 | continue; | |
718e3744 | 1129 | |
d62a17ae | 1130 | if (zsend_interface_add(client, ifp) < 0) |
1131 | return -1; | |
718e3744 | 1132 | |
d62a17ae | 1133 | if (zsend_interface_addresses(client, ifp) < 0) |
1134 | return -1; | |
1135 | } | |
1136 | } | |
1137 | return 0; | |
718e3744 | 1138 | } |
1139 | ||
1140 | /* Unregister zebra server interface information. */ | |
d62a17ae | 1141 | static int zread_interface_delete(struct zserv *client, u_short length, |
1142 | struct zebra_vrf *zvrf) | |
718e3744 | 1143 | { |
d62a17ae | 1144 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); |
1145 | return 0; | |
718e3744 | 1146 | } |
1147 | ||
d62a17ae | 1148 | void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, |
1149 | const unsigned int nexthop_num) | |
6878b9db | 1150 | { |
d62a17ae | 1151 | if (nexthop_num > multipath_num) { |
1152 | char buff[PREFIX2STR_BUFFER]; | |
1153 | prefix2str(p, buff, sizeof(buff)); | |
1154 | zlog_warn( | |
1155 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", | |
1156 | caller, buff, nexthop_num, multipath_num); | |
1157 | } | |
6878b9db DS |
1158 | } |
1159 | ||
718e3744 | 1160 | /* This function support multiple nexthop. */ |
d62a17ae | 1161 | /* |
f0f77c9a | 1162 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update re and |
d62a17ae | 1163 | * add kernel route. |
b9df2d25 | 1164 | */ |
d62a17ae | 1165 | static int zread_ipv4_add(struct zserv *client, u_short length, |
1166 | struct zebra_vrf *zvrf) | |
1167 | { | |
1168 | int i; | |
1169 | struct route_entry *re; | |
1170 | struct prefix p; | |
1171 | u_char message; | |
1172 | struct in_addr nhop_addr; | |
1173 | u_char nexthop_num; | |
1174 | u_char nexthop_type; | |
1175 | struct stream *s; | |
1176 | ifindex_t ifindex; | |
1177 | safi_t safi; | |
1178 | int ret; | |
1179 | mpls_label_t label; | |
1180 | struct nexthop *nexthop; | |
1181 | ||
1182 | /* Get input stream. */ | |
1183 | s = client->ibuf; | |
1184 | ||
1185 | /* Allocate new re. */ | |
1186 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1187 | ||
1188 | /* Type, flags, message. */ | |
1189 | re->type = stream_getc(s); | |
1190 | re->instance = stream_getw(s); | |
1191 | re->flags = stream_getl(s); | |
1192 | message = stream_getc(s); | |
1193 | safi = stream_getw(s); | |
1194 | re->uptime = time(NULL); | |
1195 | ||
1196 | /* IPv4 prefix. */ | |
1197 | memset(&p, 0, sizeof(struct prefix_ipv4)); | |
1198 | p.family = AF_INET; | |
1199 | p.prefixlen = stream_getc(s); | |
1200 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1201 | ||
1202 | /* VRF ID */ | |
1203 | re->vrf_id = zvrf_id(zvrf); | |
1204 | ||
1205 | /* Nexthop parse. */ | |
1206 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1207 | nexthop_num = stream_getc(s); | |
1208 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1209 | nexthop_num); | |
1210 | ||
1211 | for (i = 0; i < nexthop_num; i++) { | |
1212 | nexthop_type = stream_getc(s); | |
1213 | ||
1214 | switch (nexthop_type) { | |
1215 | case NEXTHOP_TYPE_IFINDEX: | |
1216 | ifindex = stream_getl(s); | |
1217 | route_entry_nexthop_ifindex_add(re, ifindex); | |
1218 | break; | |
1219 | case NEXTHOP_TYPE_IPV4: | |
1220 | nhop_addr.s_addr = stream_get_ipv4(s); | |
1221 | nexthop = route_entry_nexthop_ipv4_add( | |
1222 | re, &nhop_addr, NULL); | |
1223 | /* For labeled-unicast, each nexthop is followed | |
1224 | * by label. */ | |
1225 | if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) { | |
1226 | label = (mpls_label_t)stream_getl(s); | |
1227 | nexthop_add_labels( | |
1228 | nexthop, nexthop->nh_label_type, | |
1229 | 1, &label); | |
1230 | } | |
1231 | break; | |
1232 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1233 | nhop_addr.s_addr = stream_get_ipv4(s); | |
1234 | ifindex = stream_getl(s); | |
1235 | route_entry_nexthop_ipv4_ifindex_add( | |
1236 | re, &nhop_addr, NULL, ifindex); | |
1237 | break; | |
1238 | case NEXTHOP_TYPE_IPV6: | |
1239 | stream_forward_getp(s, IPV6_MAX_BYTELEN); | |
1240 | break; | |
1241 | case NEXTHOP_TYPE_BLACKHOLE: | |
1242 | route_entry_nexthop_blackhole_add(re); | |
1243 | break; | |
1244 | } | |
1245 | } | |
718e3744 | 1246 | } |
718e3744 | 1247 | |
d62a17ae | 1248 | /* Distance. */ |
1249 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1250 | re->distance = stream_getc(s); | |
718e3744 | 1251 | |
d62a17ae | 1252 | /* Metric. */ |
1253 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1254 | re->metric = stream_getl(s); | |
0d9551dc | 1255 | |
d62a17ae | 1256 | /* Tag */ |
1257 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1258 | re->tag = stream_getl(s); | |
1259 | else | |
1260 | re->tag = 0; | |
c50ca33a | 1261 | |
d62a17ae | 1262 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) |
1263 | re->mtu = stream_getl(s); | |
1264 | else | |
1265 | re->mtu = 0; | |
1266 | ||
1267 | /* Table */ | |
1268 | re->table = zvrf->table_id; | |
12f6fb97 | 1269 | |
d62a17ae | 1270 | ret = rib_add_multipath(AFI_IP, safi, &p, NULL, re); |
04b02fda | 1271 | |
d62a17ae | 1272 | /* Stats */ |
1273 | if (ret > 0) | |
1274 | client->v4_route_add_cnt++; | |
1275 | else if (ret < 0) | |
1276 | client->v4_route_upd8_cnt++; | |
1277 | return 0; | |
718e3744 | 1278 | } |
1279 | ||
1280 | /* Zebra server IPv4 prefix delete function. */ | |
d62a17ae | 1281 | static int zread_ipv4_delete(struct zserv *client, u_short length, |
1282 | struct zebra_vrf *zvrf) | |
1283 | { | |
d62a17ae | 1284 | struct stream *s; |
1285 | struct zapi_ipv4 api; | |
d62a17ae | 1286 | struct prefix p; |
d62a17ae | 1287 | u_int32_t table_id; |
1288 | ||
1289 | s = client->ibuf; | |
d62a17ae | 1290 | |
1291 | /* Type, flags, message. */ | |
1292 | api.type = stream_getc(s); | |
1293 | api.instance = stream_getw(s); | |
1294 | api.flags = stream_getl(s); | |
1295 | api.message = stream_getc(s); | |
1296 | api.safi = stream_getw(s); | |
1297 | ||
1298 | /* IPv4 prefix. */ | |
1299 | memset(&p, 0, sizeof(struct prefix)); | |
1300 | p.family = AF_INET; | |
1301 | p.prefixlen = stream_getc(s); | |
1302 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1303 | ||
d62a17ae | 1304 | table_id = zvrf->table_id; |
1305 | ||
1306 | rib_delete(AFI_IP, api.safi, zvrf_id(zvrf), api.type, api.instance, | |
d51b9e45 | 1307 | api.flags, &p, NULL, NULL, 0, table_id, 0); |
d62a17ae | 1308 | client->v4_route_del_cnt++; |
1309 | return 0; | |
718e3744 | 1310 | } |
1311 | ||
6f61a5a3 | 1312 | /* MRIB Nexthop lookup for IPv4. */ |
d62a17ae | 1313 | static int zread_ipv4_nexthop_lookup_mrib(struct zserv *client, u_short length, |
1314 | struct zebra_vrf *zvrf) | |
6f61a5a3 | 1315 | { |
d62a17ae | 1316 | struct in_addr addr; |
1317 | struct route_entry *re; | |
6f61a5a3 | 1318 | |
d62a17ae | 1319 | addr.s_addr = stream_get_ipv4(client->ibuf); |
1320 | re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
1321 | return zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); | |
6f61a5a3 EM |
1322 | } |
1323 | ||
8a92a8a0 | 1324 | /* Zebra server IPv6 prefix add function. */ |
d62a17ae | 1325 | static int zread_ipv4_route_ipv6_nexthop_add(struct zserv *client, |
1326 | u_short length, | |
1327 | struct zebra_vrf *zvrf) | |
1328 | { | |
1329 | unsigned int i; | |
1330 | struct stream *s; | |
1331 | struct in6_addr nhop_addr; | |
1332 | struct route_entry *re; | |
1333 | u_char message; | |
1334 | u_char nexthop_num; | |
1335 | u_char nexthop_type; | |
1336 | struct prefix p; | |
1337 | safi_t safi; | |
1338 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1339 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1340 | int ret; | |
1341 | static mpls_label_t labels[MULTIPATH_NUM]; | |
1342 | mpls_label_t label; | |
1343 | struct nexthop *nexthop; | |
1344 | ||
1345 | /* Get input stream. */ | |
1346 | s = client->ibuf; | |
1347 | ||
1348 | memset(&nhop_addr, 0, sizeof(struct in6_addr)); | |
1349 | ||
1350 | /* Allocate new re. */ | |
1351 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1352 | ||
1353 | /* Type, flags, message. */ | |
1354 | re->type = stream_getc(s); | |
1355 | re->instance = stream_getw(s); | |
1356 | re->flags = stream_getl(s); | |
1357 | message = stream_getc(s); | |
1358 | safi = stream_getw(s); | |
1359 | re->uptime = time(NULL); | |
1360 | ||
1361 | /* IPv4 prefix. */ | |
1362 | memset(&p, 0, sizeof(struct prefix_ipv4)); | |
1363 | p.family = AF_INET; | |
1364 | p.prefixlen = stream_getc(s); | |
1365 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1366 | ||
1367 | /* VRF ID */ | |
1368 | re->vrf_id = zvrf_id(zvrf); | |
1369 | ||
1370 | /* We need to give nh-addr, nh-ifindex with the same next-hop object | |
1371 | * to the re to ensure that IPv6 multipathing works; need to coalesce | |
1372 | * these. Clients should send the same number of paired set of | |
1373 | * next-hop-addr/next-hop-ifindices. */ | |
1374 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1375 | unsigned int nh_count = 0; | |
1376 | unsigned int if_count = 0; | |
1377 | unsigned int max_nh_if = 0; | |
1378 | ||
1379 | nexthop_num = stream_getc(s); | |
1380 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1381 | nexthop_num); | |
1382 | for (i = 0; i < nexthop_num; i++) { | |
1383 | nexthop_type = stream_getc(s); | |
1384 | ||
1385 | switch (nexthop_type) { | |
1386 | case NEXTHOP_TYPE_IPV6: | |
1387 | stream_get(&nhop_addr, s, 16); | |
1388 | if (nh_count < MULTIPATH_NUM) { | |
1389 | /* For labeled-unicast, each nexthop is | |
1390 | * followed by label. */ | |
1391 | if (CHECK_FLAG(message, | |
1392 | ZAPI_MESSAGE_LABEL)) { | |
1393 | label = (mpls_label_t) | |
1394 | stream_getl(s); | |
1395 | labels[nh_count] = label; | |
1396 | } | |
1397 | nexthops[nh_count] = nhop_addr; | |
1398 | nh_count++; | |
1399 | } | |
1400 | break; | |
1401 | case NEXTHOP_TYPE_IFINDEX: | |
1402 | if (if_count < multipath_num) { | |
1403 | ifindices[if_count++] = stream_getl(s); | |
1404 | } | |
1405 | break; | |
1406 | case NEXTHOP_TYPE_BLACKHOLE: | |
1407 | route_entry_nexthop_blackhole_add(re); | |
1408 | break; | |
1409 | } | |
1410 | } | |
1411 | ||
1412 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1413 | for (i = 0; i < max_nh_if; i++) { | |
1414 | if ((i < nh_count) | |
1415 | && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { | |
1416 | if ((i < if_count) && ifindices[i]) | |
1417 | nexthop = | |
1418 | route_entry_nexthop_ipv6_ifindex_add( | |
1419 | re, &nexthops[i], | |
1420 | ifindices[i]); | |
1421 | else | |
1422 | nexthop = route_entry_nexthop_ipv6_add( | |
1423 | re, &nexthops[i]); | |
1424 | ||
1425 | if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) | |
1426 | nexthop_add_labels( | |
1427 | nexthop, nexthop->nh_label_type, | |
1428 | 1, &labels[i]); | |
1429 | } else { | |
1430 | if ((i < if_count) && ifindices[i]) | |
1431 | route_entry_nexthop_ifindex_add( | |
1432 | re, ifindices[i]); | |
1433 | } | |
1434 | } | |
8a92a8a0 DS |
1435 | } |
1436 | ||
d62a17ae | 1437 | /* Distance. */ |
1438 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1439 | re->distance = stream_getc(s); | |
41fc2714 | 1440 | |
d62a17ae | 1441 | /* Metric. */ |
1442 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1443 | re->metric = stream_getl(s); | |
1444 | ||
1445 | /* Tag */ | |
1446 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1447 | re->tag = stream_getl(s); | |
1448 | else | |
1449 | re->tag = 0; | |
1450 | ||
1451 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) | |
1452 | re->mtu = stream_getl(s); | |
1453 | else | |
1454 | re->mtu = 0; | |
1455 | ||
1456 | /* Table */ | |
1457 | re->table = zvrf->table_id; | |
1458 | ||
1459 | ret = rib_add_multipath(AFI_IP6, safi, &p, NULL, re); | |
1460 | /* Stats */ | |
1461 | if (ret > 0) | |
1462 | client->v4_route_add_cnt++; | |
1463 | else if (ret < 0) | |
1464 | client->v4_route_upd8_cnt++; | |
1465 | ||
1466 | return 0; | |
1467 | } | |
1468 | ||
1469 | static int zread_ipv6_add(struct zserv *client, u_short length, | |
1470 | struct zebra_vrf *zvrf) | |
1471 | { | |
1472 | unsigned int i; | |
1473 | struct stream *s; | |
1474 | struct in6_addr nhop_addr; | |
f38efb80 | 1475 | ifindex_t ifindex; |
d62a17ae | 1476 | struct route_entry *re; |
1477 | u_char message; | |
1478 | u_char nexthop_num; | |
1479 | u_char nexthop_type; | |
1480 | struct prefix p; | |
1481 | struct prefix_ipv6 src_p, *src_pp; | |
1482 | safi_t safi; | |
1483 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1484 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1485 | int ret; | |
1486 | static mpls_label_t labels[MULTIPATH_NUM]; | |
1487 | mpls_label_t label; | |
1488 | struct nexthop *nexthop; | |
1489 | ||
1490 | /* Get input stream. */ | |
1491 | s = client->ibuf; | |
1492 | ||
1493 | memset(&nhop_addr, 0, sizeof(struct in6_addr)); | |
1494 | ||
1495 | /* Allocate new re. */ | |
1496 | re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); | |
1497 | ||
1498 | /* Type, flags, message. */ | |
1499 | re->type = stream_getc(s); | |
1500 | re->instance = stream_getw(s); | |
1501 | re->flags = stream_getl(s); | |
1502 | message = stream_getc(s); | |
1503 | safi = stream_getw(s); | |
1504 | re->uptime = time(NULL); | |
1505 | ||
1506 | /* IPv6 prefix. */ | |
1507 | memset(&p, 0, sizeof(struct prefix_ipv6)); | |
1508 | p.family = AF_INET6; | |
1509 | p.prefixlen = stream_getc(s); | |
1510 | stream_get(&p.u.prefix6, s, PSIZE(p.prefixlen)); | |
1511 | ||
1512 | if (CHECK_FLAG(message, ZAPI_MESSAGE_SRCPFX)) { | |
1513 | memset(&src_p, 0, sizeof(struct prefix_ipv6)); | |
1514 | src_p.family = AF_INET6; | |
1515 | src_p.prefixlen = stream_getc(s); | |
1516 | stream_get(&src_p.prefix, s, PSIZE(src_p.prefixlen)); | |
1517 | src_pp = &src_p; | |
1518 | } else | |
1519 | src_pp = NULL; | |
1520 | ||
1521 | /* We need to give nh-addr, nh-ifindex with the same next-hop object | |
1522 | * to the re to ensure that IPv6 multipathing works; need to coalesce | |
1523 | * these. Clients should send the same number of paired set of | |
1524 | * next-hop-addr/next-hop-ifindices. */ | |
1525 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1526 | unsigned int nh_count = 0; | |
1527 | unsigned int if_count = 0; | |
1528 | unsigned int max_nh_if = 0; | |
1529 | ||
1530 | nexthop_num = stream_getc(s); | |
1531 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1532 | nexthop_num); | |
1533 | for (i = 0; i < nexthop_num; i++) { | |
1534 | nexthop_type = stream_getc(s); | |
1535 | ||
1536 | switch (nexthop_type) { | |
1537 | case NEXTHOP_TYPE_IPV6: | |
1538 | stream_get(&nhop_addr, s, 16); | |
1539 | if (nh_count < MULTIPATH_NUM) { | |
1540 | /* For labeled-unicast, each nexthop is | |
1541 | * followed by label. */ | |
1542 | if (CHECK_FLAG(message, | |
1543 | ZAPI_MESSAGE_LABEL)) { | |
1544 | label = (mpls_label_t) | |
1545 | stream_getl(s); | |
1546 | labels[nh_count] = label; | |
1547 | } | |
1548 | nexthops[nh_count++] = nhop_addr; | |
1549 | } | |
1550 | break; | |
f38efb80 RW |
1551 | case NEXTHOP_TYPE_IPV6_IFINDEX: |
1552 | stream_get(&nhop_addr, s, 16); | |
1553 | ifindex = stream_getl(s); | |
1554 | route_entry_nexthop_ipv6_ifindex_add( | |
1555 | re, &nhop_addr, ifindex); | |
1556 | break; | |
d62a17ae | 1557 | case NEXTHOP_TYPE_IFINDEX: |
1558 | if (if_count < multipath_num) { | |
1559 | ifindices[if_count++] = stream_getl(s); | |
1560 | } | |
1561 | break; | |
1562 | case NEXTHOP_TYPE_BLACKHOLE: | |
1563 | route_entry_nexthop_blackhole_add(re); | |
1564 | break; | |
1565 | } | |
1566 | } | |
1567 | ||
1568 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1569 | for (i = 0; i < max_nh_if; i++) { | |
1570 | if ((i < nh_count) | |
1571 | && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { | |
1572 | if ((i < if_count) && ifindices[i]) | |
1573 | nexthop = | |
1574 | route_entry_nexthop_ipv6_ifindex_add( | |
1575 | re, &nexthops[i], | |
1576 | ifindices[i]); | |
1577 | else | |
1578 | nexthop = route_entry_nexthop_ipv6_add( | |
1579 | re, &nexthops[i]); | |
1580 | if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) | |
1581 | nexthop_add_labels( | |
1582 | nexthop, nexthop->nh_label_type, | |
1583 | 1, &labels[i]); | |
1584 | } else { | |
1585 | if ((i < if_count) && ifindices[i]) | |
1586 | route_entry_nexthop_ifindex_add( | |
1587 | re, ifindices[i]); | |
1588 | } | |
1589 | } | |
41fc2714 | 1590 | } |
718e3744 | 1591 | |
d62a17ae | 1592 | /* Distance. */ |
1593 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1594 | re->distance = stream_getc(s); | |
1595 | ||
1596 | /* Metric. */ | |
1597 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1598 | re->metric = stream_getl(s); | |
718e3744 | 1599 | |
d62a17ae | 1600 | /* Tag */ |
1601 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1602 | re->tag = stream_getl(s); | |
1603 | else | |
1604 | re->tag = 0; | |
c50ca33a | 1605 | |
d62a17ae | 1606 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) |
1607 | re->mtu = stream_getl(s); | |
1608 | else | |
1609 | re->mtu = 0; | |
0d9551dc | 1610 | |
d62a17ae | 1611 | /* VRF ID */ |
1612 | re->vrf_id = zvrf_id(zvrf); | |
1613 | re->table = zvrf->table_id; | |
154caaed | 1614 | |
d62a17ae | 1615 | ret = rib_add_multipath(AFI_IP6, safi, &p, src_pp, re); |
1616 | /* Stats */ | |
1617 | if (ret > 0) | |
1618 | client->v6_route_add_cnt++; | |
1619 | else if (ret < 0) | |
1620 | client->v6_route_upd8_cnt++; | |
04b02fda | 1621 | |
d62a17ae | 1622 | return 0; |
718e3744 | 1623 | } |
1624 | ||
1625 | /* Zebra server IPv6 prefix delete function. */ | |
d62a17ae | 1626 | static int zread_ipv6_delete(struct zserv *client, u_short length, |
1627 | struct zebra_vrf *zvrf) | |
1628 | { | |
d62a17ae | 1629 | struct stream *s; |
1630 | struct zapi_ipv6 api; | |
d62a17ae | 1631 | struct prefix p; |
1632 | struct prefix_ipv6 src_p, *src_pp; | |
1633 | ||
1634 | s = client->ibuf; | |
d62a17ae | 1635 | |
1636 | /* Type, flags, message. */ | |
1637 | api.type = stream_getc(s); | |
1638 | api.instance = stream_getw(s); | |
1639 | api.flags = stream_getl(s); | |
1640 | api.message = stream_getc(s); | |
1641 | api.safi = stream_getw(s); | |
1642 | ||
1643 | /* IPv4 prefix. */ | |
1644 | memset(&p, 0, sizeof(struct prefix_ipv6)); | |
1645 | p.family = AF_INET6; | |
1646 | p.prefixlen = stream_getc(s); | |
1647 | stream_get(&p.u.prefix6, s, PSIZE(p.prefixlen)); | |
1648 | ||
1649 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
1650 | memset(&src_p, 0, sizeof(struct prefix_ipv6)); | |
1651 | src_p.family = AF_INET6; | |
1652 | src_p.prefixlen = stream_getc(s); | |
1653 | stream_get(&src_p.prefix, s, PSIZE(src_p.prefixlen)); | |
1654 | src_pp = &src_p; | |
1655 | } else | |
1656 | src_pp = NULL; | |
1657 | ||
d51b9e45 RW |
1658 | rib_delete(AFI_IP6, api.safi, zvrf_id(zvrf), api.type, api.instance, |
1659 | api.flags, &p, src_pp, NULL, 0, client->rtm_table, 0); | |
d62a17ae | 1660 | |
1661 | client->v6_route_del_cnt++; | |
1662 | return 0; | |
718e3744 | 1663 | } |
1664 | ||
18a6dce6 | 1665 | /* Register zebra server router-id information. Send current router-id */ |
d62a17ae | 1666 | static int zread_router_id_add(struct zserv *client, u_short length, |
1667 | struct zebra_vrf *zvrf) | |
18a6dce6 | 1668 | { |
d62a17ae | 1669 | struct prefix p; |
18a6dce6 | 1670 | |
d62a17ae | 1671 | /* Router-id information is needed. */ |
1672 | vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); | |
18a6dce6 | 1673 | |
d62a17ae | 1674 | router_id_get(&p, zvrf_id(zvrf)); |
18a6dce6 | 1675 | |
d62a17ae | 1676 | return zsend_router_id_update(client, &p, zvrf_id(zvrf)); |
18a6dce6 | 1677 | } |
1678 | ||
1679 | /* Unregister zebra server router-id information. */ | |
d62a17ae | 1680 | static int zread_router_id_delete(struct zserv *client, u_short length, |
1681 | struct zebra_vrf *zvrf) | |
18a6dce6 | 1682 | { |
d62a17ae | 1683 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); |
1684 | return 0; | |
18a6dce6 | 1685 | } |
1686 | ||
2ea1ab1c | 1687 | /* Tie up route-type and client->sock */ |
d62a17ae | 1688 | static void zread_hello(struct zserv *client) |
2ea1ab1c | 1689 | { |
d62a17ae | 1690 | /* type of protocol (lib/zebra.h) */ |
1691 | u_char proto; | |
1692 | u_short instance; | |
7c8ff89e | 1693 | |
d62a17ae | 1694 | proto = stream_getc(client->ibuf); |
1695 | instance = stream_getw(client->ibuf); | |
2ea1ab1c | 1696 | |
d62a17ae | 1697 | /* accept only dynamic routing protocols */ |
1698 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_STATIC)) { | |
1699 | zlog_notice( | |
1700 | "client %d says hello and bids fair to announce only %s routes", | |
1701 | client->sock, zebra_route_string(proto)); | |
1702 | if (instance) | |
1703 | zlog_notice("client protocol instance %d", instance); | |
2ea1ab1c | 1704 | |
d62a17ae | 1705 | client->proto = proto; |
1706 | client->instance = instance; | |
1707 | } | |
2ea1ab1c VT |
1708 | } |
1709 | ||
7076bb2f | 1710 | /* Unregister all information in a VRF. */ |
d62a17ae | 1711 | static int zread_vrf_unregister(struct zserv *client, u_short length, |
1712 | struct zebra_vrf *zvrf) | |
1713 | { | |
1714 | int i; | |
1715 | afi_t afi; | |
1716 | ||
1717 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1718 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
1719 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
1720 | vrf_bitmap_unset(client->redist_default, zvrf_id(zvrf)); | |
1721 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); | |
1722 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1723 | ||
1724 | return 0; | |
1725 | } | |
1726 | ||
1727 | static void zread_mpls_labels(int command, struct zserv *client, u_short length, | |
1728 | vrf_id_t vrf_id) | |
1729 | { | |
1730 | struct stream *s; | |
1731 | enum lsp_types_t type; | |
1732 | struct prefix prefix; | |
1733 | enum nexthop_types_t gtype; | |
1734 | union g_addr gate; | |
1735 | ifindex_t ifindex; | |
1736 | mpls_label_t in_label, out_label; | |
1737 | u_int8_t distance; | |
1738 | struct zebra_vrf *zvrf; | |
1739 | ||
1740 | zvrf = vrf_info_lookup(vrf_id); | |
1741 | if (!zvrf) | |
1742 | return; | |
1743 | ||
1744 | /* Get input stream. */ | |
1745 | s = client->ibuf; | |
1746 | ||
1747 | /* Get data. */ | |
1748 | type = stream_getc(s); | |
1749 | prefix.family = stream_getl(s); | |
1750 | switch (prefix.family) { | |
1751 | case AF_INET: | |
1752 | prefix.u.prefix4.s_addr = stream_get_ipv4(s); | |
1753 | prefix.prefixlen = stream_getc(s); | |
1754 | gate.ipv4.s_addr = stream_get_ipv4(s); | |
1755 | break; | |
1756 | case AF_INET6: | |
1757 | stream_get(&prefix.u.prefix6, s, 16); | |
1758 | prefix.prefixlen = stream_getc(s); | |
1759 | stream_get(&gate.ipv6, s, 16); | |
1760 | break; | |
1761 | default: | |
1762 | return; | |
1763 | } | |
1764 | ifindex = stream_getl(s); | |
1765 | distance = stream_getc(s); | |
1766 | in_label = stream_getl(s); | |
1767 | out_label = stream_getl(s); | |
1768 | ||
1769 | switch (prefix.family) { | |
1770 | case AF_INET: | |
1771 | if (ifindex) | |
1772 | gtype = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1773 | else | |
1774 | gtype = NEXTHOP_TYPE_IPV4; | |
1775 | break; | |
1776 | case AF_INET6: | |
1777 | if (ifindex) | |
1778 | gtype = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1779 | else | |
1780 | gtype = NEXTHOP_TYPE_IPV6; | |
1781 | break; | |
1782 | default: | |
1783 | return; | |
1784 | } | |
1785 | ||
1786 | if (!mpls_enabled) | |
1787 | return; | |
1788 | ||
1789 | if (command == ZEBRA_MPLS_LABELS_ADD) { | |
1790 | mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, | |
1791 | ifindex); | |
2f9c59f0 RW |
1792 | mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, |
1793 | distance, out_label); | |
d62a17ae | 1794 | } else if (command == ZEBRA_MPLS_LABELS_DELETE) { |
1795 | mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, ifindex); | |
2f9c59f0 RW |
1796 | mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, |
1797 | distance, out_label); | |
d62a17ae | 1798 | } |
ce549947 | 1799 | } |
fea12efb | 1800 | /* Send response to a label manager connect request to client */ |
d62a17ae | 1801 | static int zsend_label_manager_connect_response(struct zserv *client, |
1802 | vrf_id_t vrf_id, u_short result) | |
fea12efb | 1803 | { |
d62a17ae | 1804 | struct stream *s; |
fea12efb | 1805 | |
d62a17ae | 1806 | s = client->obuf; |
1807 | stream_reset(s); | |
fea12efb | 1808 | |
d62a17ae | 1809 | zserv_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); |
fea12efb | 1810 | |
d62a17ae | 1811 | /* result */ |
1812 | stream_putc(s, result); | |
fea12efb | 1813 | |
d62a17ae | 1814 | /* Write packet size. */ |
1815 | stream_putw_at(s, 0, stream_get_endp(s)); | |
fea12efb | 1816 | |
d62a17ae | 1817 | return writen(client->sock, s->data, stream_get_endp(s)); |
fea12efb | 1818 | } |
1819 | ||
d62a17ae | 1820 | static void zread_label_manager_connect(struct zserv *client, vrf_id_t vrf_id) |
fea12efb | 1821 | { |
d62a17ae | 1822 | struct stream *s; |
1823 | /* type of protocol (lib/zebra.h) */ | |
1824 | u_char proto; | |
1825 | u_short instance; | |
fea12efb | 1826 | |
d62a17ae | 1827 | /* Get input stream. */ |
1828 | s = client->ibuf; | |
fea12efb | 1829 | |
d62a17ae | 1830 | /* Get data. */ |
1831 | proto = stream_getc(s); | |
1832 | instance = stream_getw(s); | |
fea12efb | 1833 | |
d62a17ae | 1834 | /* accept only dynamic routing protocols */ |
1835 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
1836 | zlog_err("client %d has wrong protocol %s", client->sock, | |
1837 | zebra_route_string(proto)); | |
1838 | zsend_label_manager_connect_response(client, vrf_id, 1); | |
1839 | return; | |
1840 | } | |
1841 | zlog_notice("client %d with instance %u connected as %s", client->sock, | |
1842 | instance, zebra_route_string(proto)); | |
1843 | client->proto = proto; | |
1844 | client->instance = instance; | |
1845 | ||
1846 | /* | |
1847 | Release previous labels of same protocol and instance. | |
1848 | This is done in case it restarted from an unexpected shutdown. | |
1849 | */ | |
1850 | release_daemon_chunks(proto, instance); | |
1851 | ||
1852 | zlog_debug( | |
1853 | " Label Manager client connected: sock %d, proto %s, instance %u", | |
1854 | client->sock, zebra_route_string(proto), instance); | |
1855 | /* send response back */ | |
1856 | zsend_label_manager_connect_response(client, vrf_id, 0); | |
fea12efb | 1857 | } |
1858 | /* Send response to a get label chunk request to client */ | |
d62a17ae | 1859 | static int zsend_assign_label_chunk_response(struct zserv *client, |
1860 | vrf_id_t vrf_id, | |
1861 | struct label_manager_chunk *lmc) | |
fea12efb | 1862 | { |
d62a17ae | 1863 | struct stream *s; |
fea12efb | 1864 | |
d62a17ae | 1865 | s = client->obuf; |
1866 | stream_reset(s); | |
fea12efb | 1867 | |
d62a17ae | 1868 | zserv_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); |
fea12efb | 1869 | |
d62a17ae | 1870 | if (lmc) { |
1871 | /* keep */ | |
1872 | stream_putc(s, lmc->keep); | |
1873 | /* start and end labels */ | |
1874 | stream_putl(s, lmc->start); | |
1875 | stream_putl(s, lmc->end); | |
1876 | } | |
fea12efb | 1877 | |
d62a17ae | 1878 | /* Write packet size. */ |
1879 | stream_putw_at(s, 0, stream_get_endp(s)); | |
fea12efb | 1880 | |
d62a17ae | 1881 | return writen(client->sock, s->data, stream_get_endp(s)); |
fea12efb | 1882 | } |
1883 | ||
d62a17ae | 1884 | static void zread_get_label_chunk(struct zserv *client, vrf_id_t vrf_id) |
fea12efb | 1885 | { |
d62a17ae | 1886 | struct stream *s; |
1887 | u_char keep; | |
1888 | uint32_t size; | |
1889 | struct label_manager_chunk *lmc; | |
fea12efb | 1890 | |
d62a17ae | 1891 | /* Get input stream. */ |
1892 | s = client->ibuf; | |
fea12efb | 1893 | |
d62a17ae | 1894 | /* Get data. */ |
1895 | keep = stream_getc(s); | |
1896 | size = stream_getl(s); | |
fea12efb | 1897 | |
d62a17ae | 1898 | lmc = assign_label_chunk(client->proto, client->instance, keep, size); |
1899 | if (!lmc) | |
1900 | zlog_err("%s: Unable to assign Label Chunk of size %u", | |
1901 | __func__, size); | |
1902 | else | |
1903 | zlog_debug("Assigned Label Chunk %u - %u to %u", lmc->start, | |
1904 | lmc->end, keep); | |
1905 | /* send response back */ | |
1906 | zsend_assign_label_chunk_response(client, vrf_id, lmc); | |
1907 | } | |
1908 | ||
1909 | static void zread_release_label_chunk(struct zserv *client) | |
1910 | { | |
1911 | struct stream *s; | |
1912 | uint32_t start, end; | |
1913 | ||
1914 | /* Get input stream. */ | |
1915 | s = client->ibuf; | |
1916 | ||
1917 | /* Get data. */ | |
1918 | start = stream_getl(s); | |
1919 | end = stream_getl(s); | |
1920 | ||
1921 | release_label_chunk(client->proto, client->instance, start, end); | |
1922 | } | |
1923 | static void zread_label_manager_request(int cmd, struct zserv *client, | |
1924 | vrf_id_t vrf_id) | |
1925 | { | |
1926 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
1927 | if (cmd == ZEBRA_LABEL_MANAGER_CONNECT) | |
1928 | client->is_synchronous = 1; | |
1929 | ||
1930 | /* external label manager */ | |
1931 | if (lm_is_external) | |
1932 | zread_relay_label_manager_request(cmd, client, vrf_id); | |
1933 | /* this is a label manager */ | |
1934 | else { | |
1935 | if (cmd == ZEBRA_LABEL_MANAGER_CONNECT) | |
1936 | zread_label_manager_connect(client, vrf_id); | |
1937 | else { | |
1938 | /* Sanity: don't allow 'unidentified' requests */ | |
1939 | if (!client->proto) { | |
1940 | zlog_err( | |
1941 | "Got label request from an unidentified client"); | |
1942 | return; | |
1943 | } | |
1944 | if (cmd == ZEBRA_GET_LABEL_CHUNK) | |
1945 | zread_get_label_chunk(client, vrf_id); | |
1946 | else if (cmd == ZEBRA_RELEASE_LABEL_CHUNK) | |
1947 | zread_release_label_chunk(client); | |
1948 | } | |
1949 | } | |
fea12efb | 1950 | } |
1951 | ||
6833ae01 | 1952 | static int zread_pseudowire(int command, struct zserv *client, u_short length, |
1953 | vrf_id_t vrf_id) | |
1954 | { | |
1955 | struct stream *s; | |
1956 | struct zebra_vrf *zvrf; | |
1957 | char ifname[IF_NAMESIZE]; | |
1958 | ifindex_t ifindex; | |
1959 | int type; | |
1960 | int af; | |
1961 | union g_addr nexthop; | |
1962 | uint32_t local_label; | |
1963 | uint32_t remote_label; | |
1964 | uint8_t flags; | |
1965 | union pw_protocol_fields data; | |
1966 | uint8_t protocol; | |
1967 | struct zebra_pw *pw; | |
1968 | ||
1969 | zvrf = vrf_info_lookup(vrf_id); | |
1970 | if (!zvrf) | |
1971 | return -1; | |
1972 | ||
1973 | /* Get input stream. */ | |
1974 | s = client->ibuf; | |
1975 | ||
1976 | /* Get data. */ | |
1977 | stream_get(ifname, s, IF_NAMESIZE); | |
1978 | ifindex = stream_getl(s); | |
1979 | type = stream_getl(s); | |
1980 | af = stream_getl(s); | |
1981 | switch (af) { | |
1982 | case AF_INET: | |
1983 | nexthop.ipv4.s_addr = stream_get_ipv4(s); | |
1984 | break; | |
1985 | case AF_INET6: | |
1986 | stream_get(&nexthop.ipv6, s, 16); | |
1987 | break; | |
1988 | default: | |
1989 | return -1; | |
1990 | } | |
1991 | local_label = stream_getl(s); | |
1992 | remote_label = stream_getl(s); | |
1993 | flags = stream_getc(s); | |
1994 | stream_get(&data, s, sizeof(data)); | |
1995 | protocol = client->proto; | |
1996 | ||
1997 | pw = zebra_pw_find(zvrf, ifname); | |
1998 | switch (command) { | |
1999 | case ZEBRA_PW_ADD: | |
2000 | if (pw) { | |
2001 | zlog_warn("%s: pseudowire %s already exists [%s]", | |
2002 | __func__, ifname, | |
2003 | zserv_command_string(command)); | |
2004 | return -1; | |
2005 | } | |
2006 | ||
2007 | zebra_pw_add(zvrf, ifname, protocol, client); | |
2008 | break; | |
2009 | case ZEBRA_PW_DELETE: | |
2010 | if (!pw) { | |
2011 | zlog_warn("%s: pseudowire %s not found [%s]", __func__, | |
2012 | ifname, zserv_command_string(command)); | |
2013 | return -1; | |
2014 | } | |
2015 | ||
2016 | zebra_pw_del(zvrf, pw); | |
2017 | break; | |
2018 | case ZEBRA_PW_SET: | |
2019 | case ZEBRA_PW_UNSET: | |
2020 | if (!pw) { | |
2021 | zlog_warn("%s: pseudowire %s not found [%s]", __func__, | |
2022 | ifname, zserv_command_string(command)); | |
2023 | return -1; | |
2024 | } | |
2025 | ||
2026 | switch (command) { | |
2027 | case ZEBRA_PW_SET: | |
2028 | pw->enabled = 1; | |
2029 | break; | |
2030 | case ZEBRA_PW_UNSET: | |
2031 | pw->enabled = 0; | |
2032 | break; | |
2033 | } | |
2034 | ||
2035 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
2036 | remote_label, flags, &data); | |
2037 | break; | |
2038 | } | |
2039 | ||
2040 | return 0; | |
2041 | } | |
2042 | ||
d62a17ae | 2043 | /* Cleanup registered nexthops (across VRFs) upon client disconnect. */ |
2044 | static void zebra_client_close_cleanup_rnh(struct zserv *client) | |
fea12efb | 2045 | { |
d62a17ae | 2046 | struct vrf *vrf; |
2047 | struct zebra_vrf *zvrf; | |
fea12efb | 2048 | |
d62a17ae | 2049 | RB_FOREACH(vrf, vrf_id_head, &vrfs_by_id) |
2050 | { | |
2051 | if ((zvrf = vrf->info) != NULL) { | |
2052 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, | |
2053 | RNH_NEXTHOP_TYPE); | |
2054 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, | |
2055 | client, RNH_NEXTHOP_TYPE); | |
2056 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, | |
2057 | RNH_IMPORT_CHECK_TYPE); | |
2058 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, | |
2059 | client, RNH_IMPORT_CHECK_TYPE); | |
2060 | if (client->proto == ZEBRA_ROUTE_LDP) { | |
2061 | hash_iterate(zvrf->lsp_table, | |
2062 | mpls_ldp_lsp_uninstall_all, | |
2063 | zvrf->lsp_table); | |
2064 | mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP); | |
2065 | mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP6); | |
2066 | } | |
2067 | } | |
2068 | } | |
fea12efb | 2069 | } |
d62a17ae | 2070 | |
2071 | /* Close zebra client. */ | |
2072 | static void zebra_client_close(struct zserv *client) | |
fea12efb | 2073 | { |
d62a17ae | 2074 | /* Send client de-registration to BFD */ |
2075 | zebra_ptm_bfd_client_deregister(client->proto); | |
fea12efb | 2076 | |
d62a17ae | 2077 | /* Cleanup any registered nexthops - across all VRFs. */ |
2078 | zebra_client_close_cleanup_rnh(client); | |
ce549947 | 2079 | |
d62a17ae | 2080 | /* Release Label Manager chunks */ |
2081 | release_daemon_chunks(client->proto, client->instance); | |
4b33b75a | 2082 | |
d62a17ae | 2083 | /* Cleanup any FECs registered by this client. */ |
2084 | zebra_mpls_cleanup_fecs_for_client(vrf_info_lookup(VRF_DEFAULT), | |
2085 | client); | |
2086 | ||
6833ae01 | 2087 | /* Remove pseudowires associated with this client */ |
2088 | zebra_pw_client_close(client); | |
2089 | ||
d62a17ae | 2090 | /* Close file descriptor. */ |
2091 | if (client->sock) { | |
2092 | unsigned long nroutes; | |
2093 | ||
2094 | close(client->sock); | |
2095 | nroutes = rib_score_proto(client->proto, client->instance); | |
2096 | zlog_notice( | |
2097 | "client %d disconnected. %lu %s routes removed from the rib", | |
2098 | client->sock, nroutes, | |
2099 | zebra_route_string(client->proto)); | |
2100 | client->sock = -1; | |
2101 | } | |
2102 | ||
2103 | /* Free stream buffers. */ | |
2104 | if (client->ibuf) | |
2105 | stream_free(client->ibuf); | |
2106 | if (client->obuf) | |
2107 | stream_free(client->obuf); | |
2108 | if (client->wb) | |
2109 | buffer_free(client->wb); | |
2110 | ||
2111 | /* Release threads. */ | |
2112 | if (client->t_read) | |
2113 | thread_cancel(client->t_read); | |
2114 | if (client->t_write) | |
2115 | thread_cancel(client->t_write); | |
2116 | if (client->t_suicide) | |
2117 | thread_cancel(client->t_suicide); | |
2118 | ||
2119 | /* Free bitmaps. */ | |
2120 | for (afi_t afi = AFI_IP; afi < AFI_MAX; afi++) | |
2121 | for (int i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2122 | vrf_bitmap_free(client->redist[afi][i]); | |
2123 | ||
2124 | vrf_bitmap_free(client->redist_default); | |
2125 | vrf_bitmap_free(client->ifinfo); | |
2126 | vrf_bitmap_free(client->ridinfo); | |
2127 | ||
2128 | /* Free client structure. */ | |
2129 | listnode_delete(zebrad.client_list, client); | |
2130 | XFREE(MTYPE_TMP, client); | |
718e3744 | 2131 | } |
2132 | ||
2133 | /* Make new client. */ | |
d62a17ae | 2134 | static void zebra_client_create(int sock) |
718e3744 | 2135 | { |
d62a17ae | 2136 | struct zserv *client; |
2137 | int i; | |
2138 | afi_t afi; | |
2139 | ||
2140 | client = XCALLOC(MTYPE_TMP, sizeof(struct zserv)); | |
718e3744 | 2141 | |
d62a17ae | 2142 | /* Make client input/output buffer. */ |
2143 | client->sock = sock; | |
2144 | client->ibuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2145 | client->obuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2146 | client->wb = buffer_new(0); | |
718e3744 | 2147 | |
d62a17ae | 2148 | /* Set table number. */ |
2149 | client->rtm_table = zebrad.rtm_table_default; | |
718e3744 | 2150 | |
d62a17ae | 2151 | client->connect_time = monotime(NULL); |
2152 | /* Initialize flags */ | |
2153 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2154 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2155 | client->redist[afi][i] = vrf_bitmap_init(); | |
2156 | client->redist_default = vrf_bitmap_init(); | |
2157 | client->ifinfo = vrf_bitmap_init(); | |
2158 | client->ridinfo = vrf_bitmap_init(); | |
718e3744 | 2159 | |
d62a17ae | 2160 | /* by default, it's not a synchronous client */ |
2161 | client->is_synchronous = 0; | |
04b02fda | 2162 | |
d62a17ae | 2163 | /* Add this client to linked list. */ |
2164 | listnode_add(zebrad.client_list, client); | |
fea12efb | 2165 | |
d62a17ae | 2166 | /* Make new read thread. */ |
2167 | zebra_event(ZEBRA_READ, sock, client); | |
12f6fb97 | 2168 | |
d62a17ae | 2169 | zebra_vrf_update_all(client); |
718e3744 | 2170 | } |
2171 | ||
e0ae31b8 DS |
2172 | static int zread_interface_set_master(struct zserv *client, int sock, |
2173 | u_short length) | |
2174 | { | |
2175 | struct interface *master; | |
2176 | struct interface *slave; | |
2177 | struct stream *s = client->ibuf; | |
2178 | int ifindex; | |
2179 | vrf_id_t vrf_id; | |
2180 | ||
2181 | vrf_id = stream_getw(s); | |
2182 | ifindex = stream_getl(s); | |
2183 | master = if_lookup_by_index(ifindex, vrf_id); | |
2184 | ||
2185 | vrf_id = stream_getw(s); | |
2186 | ifindex = stream_getl(s); | |
2187 | slave = if_lookup_by_index(ifindex, vrf_id); | |
2188 | ||
2189 | if (!master || !slave) | |
2190 | return 0; | |
2191 | ||
2192 | kernel_interface_set_master(master, slave); | |
2193 | ||
2194 | return 1; | |
2195 | } | |
2196 | ||
718e3744 | 2197 | /* Handler of zebra service request. */ |
d62a17ae | 2198 | static int zebra_client_read(struct thread *thread) |
2199 | { | |
2200 | int sock; | |
2201 | struct zserv *client; | |
2202 | size_t already; | |
2203 | uint16_t length, command; | |
2204 | uint8_t marker, version; | |
2205 | vrf_id_t vrf_id; | |
2206 | struct zebra_vrf *zvrf; | |
2207 | ||
2208 | /* Get thread data. Reset reading thread because I'm running. */ | |
2209 | sock = THREAD_FD(thread); | |
2210 | client = THREAD_ARG(thread); | |
2211 | client->t_read = NULL; | |
2212 | ||
2213 | if (client->t_suicide) { | |
2214 | zebra_client_close(client); | |
2215 | return -1; | |
719e9741 | 2216 | } |
d62a17ae | 2217 | |
2218 | /* Read length and command (if we don't have it already). */ | |
2219 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) { | |
2220 | ssize_t nbyte; | |
2221 | if (((nbyte = stream_read_try(client->ibuf, sock, | |
2222 | ZEBRA_HEADER_SIZE - already)) | |
2223 | == 0) | |
2224 | || (nbyte == -1)) { | |
2225 | if (IS_ZEBRA_DEBUG_EVENT) | |
2226 | zlog_debug("connection closed socket [%d]", | |
2227 | sock); | |
2228 | zebra_client_close(client); | |
2229 | return -1; | |
2230 | } | |
2231 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
2232 | /* Try again later. */ | |
2233 | zebra_event(ZEBRA_READ, sock, client); | |
2234 | return 0; | |
2235 | } | |
2236 | already = ZEBRA_HEADER_SIZE; | |
719e9741 | 2237 | } |
d62a17ae | 2238 | |
2239 | /* Reset to read from the beginning of the incoming packet. */ | |
2240 | stream_set_getp(client->ibuf, 0); | |
2241 | ||
2242 | /* Fetch header values */ | |
2243 | length = stream_getw(client->ibuf); | |
2244 | marker = stream_getc(client->ibuf); | |
2245 | version = stream_getc(client->ibuf); | |
2246 | vrf_id = stream_getw(client->ibuf); | |
2247 | command = stream_getw(client->ibuf); | |
2248 | ||
2249 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
2250 | zlog_err( | |
2251 | "%s: socket %d version mismatch, marker %d, version %d", | |
2252 | __func__, sock, marker, version); | |
2253 | zebra_client_close(client); | |
2254 | return -1; | |
2255 | } | |
2256 | if (length < ZEBRA_HEADER_SIZE) { | |
2257 | zlog_warn( | |
2258 | "%s: socket %d message length %u is less than header size %d", | |
2259 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
2260 | zebra_client_close(client); | |
2261 | return -1; | |
2262 | } | |
2263 | if (length > STREAM_SIZE(client->ibuf)) { | |
2264 | zlog_warn( | |
2265 | "%s: socket %d message length %u exceeds buffer size %lu", | |
2266 | __func__, sock, length, | |
2267 | (u_long)STREAM_SIZE(client->ibuf)); | |
2268 | zebra_client_close(client); | |
2269 | return -1; | |
718e3744 | 2270 | } |
d62a17ae | 2271 | |
2272 | /* Read rest of data. */ | |
2273 | if (already < length) { | |
2274 | ssize_t nbyte; | |
2275 | if (((nbyte = stream_read_try(client->ibuf, sock, | |
2276 | length - already)) | |
2277 | == 0) | |
2278 | || (nbyte == -1)) { | |
2279 | if (IS_ZEBRA_DEBUG_EVENT) | |
2280 | zlog_debug( | |
2281 | "connection closed [%d] when reading zebra data", | |
2282 | sock); | |
2283 | zebra_client_close(client); | |
2284 | return -1; | |
2285 | } | |
2286 | if (nbyte != (ssize_t)(length - already)) { | |
2287 | /* Try again later. */ | |
2288 | zebra_event(ZEBRA_READ, sock, client); | |
2289 | return 0; | |
2290 | } | |
2291 | } | |
2292 | ||
2293 | length -= ZEBRA_HEADER_SIZE; | |
2294 | ||
2295 | /* Debug packet information. */ | |
2296 | if (IS_ZEBRA_DEBUG_EVENT) | |
2297 | zlog_debug("zebra message comes from socket [%d]", sock); | |
2298 | ||
2299 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2300 | zlog_debug("zebra message received [%s] %d in VRF %u", | |
2301 | zserv_command_string(command), length, vrf_id); | |
2302 | ||
2303 | client->last_read_time = monotime(NULL); | |
2304 | client->last_read_cmd = command; | |
2305 | ||
2306 | zvrf = zebra_vrf_lookup_by_id(vrf_id); | |
2307 | if (!zvrf) { | |
2308 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2309 | zlog_debug("zebra received unknown VRF[%u]", vrf_id); | |
2310 | goto zclient_read_out; | |
719e9741 | 2311 | } |
d62a17ae | 2312 | |
2313 | switch (command) { | |
2314 | case ZEBRA_ROUTER_ID_ADD: | |
2315 | zread_router_id_add(client, length, zvrf); | |
2316 | break; | |
2317 | case ZEBRA_ROUTER_ID_DELETE: | |
2318 | zread_router_id_delete(client, length, zvrf); | |
2319 | break; | |
2320 | case ZEBRA_INTERFACE_ADD: | |
2321 | zread_interface_add(client, length, zvrf); | |
2322 | break; | |
2323 | case ZEBRA_INTERFACE_DELETE: | |
2324 | zread_interface_delete(client, length, zvrf); | |
2325 | break; | |
2326 | case ZEBRA_IPV4_ROUTE_ADD: | |
2327 | zread_ipv4_add(client, length, zvrf); | |
2328 | break; | |
2329 | case ZEBRA_IPV4_ROUTE_DELETE: | |
2330 | zread_ipv4_delete(client, length, zvrf); | |
2331 | break; | |
2332 | case ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD: | |
2333 | zread_ipv4_route_ipv6_nexthop_add(client, length, zvrf); | |
2334 | break; | |
d62a17ae | 2335 | case ZEBRA_IPV6_ROUTE_ADD: |
2336 | zread_ipv6_add(client, length, zvrf); | |
2337 | break; | |
2338 | case ZEBRA_IPV6_ROUTE_DELETE: | |
2339 | zread_ipv6_delete(client, length, zvrf); | |
2340 | break; | |
2341 | case ZEBRA_REDISTRIBUTE_ADD: | |
2342 | zebra_redistribute_add(command, client, length, zvrf); | |
2343 | break; | |
2344 | case ZEBRA_REDISTRIBUTE_DELETE: | |
2345 | zebra_redistribute_delete(command, client, length, zvrf); | |
2346 | break; | |
2347 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
2348 | zebra_redistribute_default_add(command, client, length, zvrf); | |
2349 | break; | |
2350 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
2351 | zebra_redistribute_default_delete(command, client, length, | |
2352 | zvrf); | |
2353 | break; | |
2354 | case ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB: | |
2355 | zread_ipv4_nexthop_lookup_mrib(client, length, zvrf); | |
2356 | break; | |
2357 | case ZEBRA_HELLO: | |
2358 | zread_hello(client); | |
2359 | break; | |
2360 | case ZEBRA_NEXTHOP_REGISTER: | |
2361 | zserv_rnh_register(client, sock, length, RNH_NEXTHOP_TYPE, | |
2362 | zvrf); | |
2363 | break; | |
2364 | case ZEBRA_NEXTHOP_UNREGISTER: | |
2365 | zserv_rnh_unregister(client, sock, length, RNH_NEXTHOP_TYPE, | |
2366 | zvrf); | |
2367 | break; | |
2368 | case ZEBRA_IMPORT_ROUTE_REGISTER: | |
2369 | zserv_rnh_register(client, sock, length, RNH_IMPORT_CHECK_TYPE, | |
2370 | zvrf); | |
2371 | break; | |
2372 | case ZEBRA_IMPORT_ROUTE_UNREGISTER: | |
2373 | zserv_rnh_unregister(client, sock, length, | |
2374 | RNH_IMPORT_CHECK_TYPE, zvrf); | |
2375 | break; | |
2376 | case ZEBRA_BFD_DEST_UPDATE: | |
2377 | case ZEBRA_BFD_DEST_REGISTER: | |
2378 | zebra_ptm_bfd_dst_register(client, sock, length, command, zvrf); | |
2379 | break; | |
2380 | case ZEBRA_BFD_DEST_DEREGISTER: | |
2381 | zebra_ptm_bfd_dst_deregister(client, sock, length, zvrf); | |
2382 | break; | |
2383 | case ZEBRA_VRF_UNREGISTER: | |
2384 | zread_vrf_unregister(client, length, zvrf); | |
2385 | break; | |
2386 | case ZEBRA_BFD_CLIENT_REGISTER: | |
2387 | zebra_ptm_bfd_client_register(client, sock, length); | |
2388 | break; | |
2389 | case ZEBRA_INTERFACE_ENABLE_RADV: | |
2390 | #if defined(HAVE_RTADV) | |
2391 | zebra_interface_radv_set(client, sock, length, zvrf, 1); | |
9c3bf1ce | 2392 | #endif |
d62a17ae | 2393 | break; |
2394 | case ZEBRA_INTERFACE_DISABLE_RADV: | |
2395 | #if defined(HAVE_RTADV) | |
2396 | zebra_interface_radv_set(client, sock, length, zvrf, 0); | |
9c3bf1ce | 2397 | #endif |
d62a17ae | 2398 | break; |
2399 | case ZEBRA_MPLS_LABELS_ADD: | |
2400 | case ZEBRA_MPLS_LABELS_DELETE: | |
2401 | zread_mpls_labels(command, client, length, vrf_id); | |
2402 | break; | |
2403 | case ZEBRA_IPMR_ROUTE_STATS: | |
2404 | zebra_ipmr_route_stats(client, sock, length, zvrf); | |
2405 | break; | |
2406 | case ZEBRA_LABEL_MANAGER_CONNECT: | |
2407 | case ZEBRA_GET_LABEL_CHUNK: | |
2408 | case ZEBRA_RELEASE_LABEL_CHUNK: | |
2409 | zread_label_manager_request(command, client, vrf_id); | |
2410 | break; | |
2411 | case ZEBRA_FEC_REGISTER: | |
2412 | zserv_fec_register(client, sock, length); | |
2413 | break; | |
2414 | case ZEBRA_FEC_UNREGISTER: | |
2415 | zserv_fec_unregister(client, sock, length); | |
2416 | break; | |
1a98c087 MK |
2417 | case ZEBRA_ADVERTISE_DEFAULT_GW: |
2418 | zebra_vxlan_advertise_gw_macip(client, sock, length, zvrf); | |
2419 | break; | |
d62a17ae | 2420 | case ZEBRA_ADVERTISE_ALL_VNI: |
2421 | zebra_vxlan_advertise_all_vni(client, sock, length, zvrf); | |
2422 | break; | |
2423 | case ZEBRA_REMOTE_VTEP_ADD: | |
2424 | zebra_vxlan_remote_vtep_add(client, sock, length, zvrf); | |
2425 | break; | |
2426 | case ZEBRA_REMOTE_VTEP_DEL: | |
2427 | zebra_vxlan_remote_vtep_del(client, sock, length, zvrf); | |
2428 | break; | |
2429 | case ZEBRA_REMOTE_MACIP_ADD: | |
2430 | zebra_vxlan_remote_macip_add(client, sock, length, zvrf); | |
2431 | break; | |
2432 | case ZEBRA_REMOTE_MACIP_DEL: | |
2433 | zebra_vxlan_remote_macip_del(client, sock, length, zvrf); | |
baca8cd4 | 2434 | break; |
e0ae31b8 DS |
2435 | case ZEBRA_INTERFACE_SET_MASTER: |
2436 | zread_interface_set_master(client, sock, length); | |
d62a17ae | 2437 | break; |
6833ae01 | 2438 | case ZEBRA_PW_ADD: |
2439 | case ZEBRA_PW_DELETE: | |
2440 | case ZEBRA_PW_SET: | |
2441 | case ZEBRA_PW_UNSET: | |
2442 | zread_pseudowire(command, client, length, vrf_id); | |
2443 | break; | |
d62a17ae | 2444 | default: |
2445 | zlog_info("Zebra received unknown command %d", command); | |
2446 | break; | |
2447 | } | |
2448 | ||
2449 | if (client->t_suicide) { | |
2450 | /* No need to wait for thread callback, just kill immediately. | |
2451 | */ | |
2452 | zebra_client_close(client); | |
2453 | return -1; | |
2454 | } | |
2455 | ||
2456 | zclient_read_out: | |
2457 | stream_reset(client->ibuf); | |
2458 | zebra_event(ZEBRA_READ, sock, client); | |
2459 | return 0; | |
718e3744 | 2460 | } |
2461 | ||
718e3744 | 2462 | |
2463 | /* Accept code of zebra server socket. */ | |
d62a17ae | 2464 | static int zebra_accept(struct thread *thread) |
718e3744 | 2465 | { |
d62a17ae | 2466 | int accept_sock; |
2467 | int client_sock; | |
2468 | struct sockaddr_in client; | |
2469 | socklen_t len; | |
2470 | ||
2471 | accept_sock = THREAD_FD(thread); | |
718e3744 | 2472 | |
d62a17ae | 2473 | /* Reregister myself. */ |
2474 | zebra_event(ZEBRA_SERV, accept_sock, NULL); | |
718e3744 | 2475 | |
d62a17ae | 2476 | len = sizeof(struct sockaddr_in); |
2477 | client_sock = accept(accept_sock, (struct sockaddr *)&client, &len); | |
719e9741 | 2478 | |
d62a17ae | 2479 | if (client_sock < 0) { |
2480 | zlog_warn("Can't accept zebra socket: %s", | |
2481 | safe_strerror(errno)); | |
2482 | return -1; | |
2483 | } | |
718e3744 | 2484 | |
d62a17ae | 2485 | /* Make client socket non-blocking. */ |
2486 | set_nonblocking(client_sock); | |
718e3744 | 2487 | |
d62a17ae | 2488 | /* Create new zebra client. */ |
2489 | zebra_client_create(client_sock); | |
718e3744 | 2490 | |
d62a17ae | 2491 | return 0; |
718e3744 | 2492 | } |
2493 | ||
689f5a8c DL |
2494 | /* Make zebra server socket, wiping any existing one (see bug #403). */ |
2495 | void zebra_zserv_socket_init(char *path) | |
d62a17ae | 2496 | { |
2497 | int ret; | |
689f5a8c | 2498 | int sock; |
d62a17ae | 2499 | mode_t old_mask; |
689f5a8c DL |
2500 | struct sockaddr_storage sa; |
2501 | socklen_t sa_len; | |
d62a17ae | 2502 | |
689f5a8c DL |
2503 | if (!frr_zclient_addr(&sa, &sa_len, path)) |
2504 | /* should be caught in zebra main() */ | |
2505 | return; | |
d62a17ae | 2506 | |
2507 | /* Set umask */ | |
2508 | old_mask = umask(0077); | |
2509 | ||
2510 | /* Make UNIX domain socket. */ | |
689f5a8c | 2511 | sock = socket(sa.ss_family, SOCK_STREAM, 0); |
d62a17ae | 2512 | if (sock < 0) { |
689f5a8c | 2513 | zlog_warn("Can't create zserv socket: %s", |
d62a17ae | 2514 | safe_strerror(errno)); |
2515 | zlog_warn( | |
2516 | "zebra can't provide full functionality due to above error"); | |
2517 | return; | |
2518 | } | |
2519 | ||
689f5a8c DL |
2520 | if (sa.ss_family != AF_UNIX) { |
2521 | sockopt_reuseaddr(sock); | |
2522 | sockopt_reuseport(sock); | |
2523 | } else { | |
2524 | struct sockaddr_un *suna = (struct sockaddr_un *)&sa; | |
2525 | if (suna->sun_path[0]) | |
2526 | unlink(suna->sun_path); | |
2527 | } | |
2528 | ||
e6c1975a | 2529 | if (sa.ss_family != AF_UNIX && zserv_privs.change(ZPRIVS_RAISE)) |
689f5a8c DL |
2530 | zlog_err("Can't raise privileges"); |
2531 | ||
2532 | ret = bind(sock, (struct sockaddr *)&sa, sa_len); | |
d62a17ae | 2533 | if (ret < 0) { |
689f5a8c | 2534 | zlog_warn("Can't bind zserv socket on %s: %s", path, |
d62a17ae | 2535 | safe_strerror(errno)); |
2536 | zlog_warn( | |
2537 | "zebra can't provide full functionality due to above error"); | |
2538 | close(sock); | |
2539 | return; | |
2540 | } | |
e6c1975a | 2541 | if (sa.ss_family != AF_UNIX && zserv_privs.change(ZPRIVS_LOWER)) |
689f5a8c | 2542 | zlog_err("Can't lower privileges"); |
d62a17ae | 2543 | |
2544 | ret = listen(sock, 5); | |
2545 | if (ret < 0) { | |
689f5a8c | 2546 | zlog_warn("Can't listen to zserv socket %s: %s", path, |
d62a17ae | 2547 | safe_strerror(errno)); |
2548 | zlog_warn( | |
2549 | "zebra can't provide full functionality due to above error"); | |
2550 | close(sock); | |
2551 | return; | |
2552 | } | |
2553 | ||
2554 | umask(old_mask); | |
2555 | ||
2556 | zebra_event(ZEBRA_SERV, sock, NULL); | |
718e3744 | 2557 | } |
6b0655a2 | 2558 | |
718e3744 | 2559 | |
d62a17ae | 2560 | static void zebra_event(enum event event, int sock, struct zserv *client) |
2561 | { | |
2562 | switch (event) { | |
2563 | case ZEBRA_SERV: | |
2564 | thread_add_read(zebrad.master, zebra_accept, client, sock, | |
2565 | NULL); | |
2566 | break; | |
2567 | case ZEBRA_READ: | |
2568 | client->t_read = NULL; | |
2569 | thread_add_read(zebrad.master, zebra_client_read, client, sock, | |
2570 | &client->t_read); | |
2571 | break; | |
2572 | case ZEBRA_WRITE: | |
2573 | /**/ | |
2574 | break; | |
2575 | } | |
718e3744 | 2576 | } |
6b0655a2 | 2577 | |
04b02fda | 2578 | #define ZEBRA_TIME_BUF 32 |
d62a17ae | 2579 | static char *zserv_time_buf(time_t *time1, char *buf, int buflen) |
04b02fda | 2580 | { |
d62a17ae | 2581 | struct tm *tm; |
2582 | time_t now; | |
04b02fda | 2583 | |
d62a17ae | 2584 | assert(buf != NULL); |
2585 | assert(buflen >= ZEBRA_TIME_BUF); | |
2586 | assert(time1 != NULL); | |
04b02fda | 2587 | |
d62a17ae | 2588 | if (!*time1) { |
2589 | snprintf(buf, buflen, "never "); | |
2590 | return (buf); | |
2591 | } | |
04b02fda | 2592 | |
d62a17ae | 2593 | now = monotime(NULL); |
2594 | now -= *time1; | |
2595 | tm = gmtime(&now); | |
04b02fda | 2596 | |
d62a17ae | 2597 | if (now < ONE_DAY_SECOND) |
2598 | snprintf(buf, buflen, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
2599 | tm->tm_sec); | |
2600 | else if (now < ONE_WEEK_SECOND) | |
2601 | snprintf(buf, buflen, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
2602 | tm->tm_min); | |
96ade3ed | 2603 | else |
d62a17ae | 2604 | snprintf(buf, buflen, "%02dw%dd%02dh", tm->tm_yday / 7, |
2605 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
2606 | return buf; | |
2607 | } | |
2608 | ||
2609 | static void zebra_show_client_detail(struct vty *vty, struct zserv *client) | |
2610 | { | |
2611 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2612 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
2613 | ||
2614 | vty_out(vty, "Client: %s", zebra_route_string(client->proto)); | |
2615 | if (client->instance) | |
2616 | vty_out(vty, " Instance: %d", client->instance); | |
2617 | vty_out(vty, "\n"); | |
2618 | ||
2619 | vty_out(vty, "------------------------ \n"); | |
2620 | vty_out(vty, "FD: %d \n", client->sock); | |
2621 | vty_out(vty, "Route Table ID: %d \n", client->rtm_table); | |
2622 | ||
2623 | vty_out(vty, "Connect Time: %s \n", | |
2624 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF)); | |
2625 | if (client->nh_reg_time) { | |
2626 | vty_out(vty, "Nexthop Registry Time: %s \n", | |
2627 | zserv_time_buf(&client->nh_reg_time, nhbuf, | |
2628 | ZEBRA_TIME_BUF)); | |
2629 | if (client->nh_last_upd_time) | |
2630 | vty_out(vty, "Nexthop Last Update Time: %s \n", | |
2631 | zserv_time_buf(&client->nh_last_upd_time, mbuf, | |
2632 | ZEBRA_TIME_BUF)); | |
2633 | else | |
2634 | vty_out(vty, "No Nexthop Update sent\n"); | |
2635 | } else | |
2636 | vty_out(vty, "Not registered for Nexthop Updates\n"); | |
2637 | ||
2638 | vty_out(vty, "Last Msg Rx Time: %s \n", | |
2639 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF)); | |
2640 | vty_out(vty, "Last Msg Tx Time: %s \n", | |
2641 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF)); | |
2642 | if (client->last_read_time) | |
2643 | vty_out(vty, "Last Rcvd Cmd: %s \n", | |
2644 | zserv_command_string(client->last_read_cmd)); | |
2645 | if (client->last_write_time) | |
2646 | vty_out(vty, "Last Sent Cmd: %s \n", | |
2647 | zserv_command_string(client->last_write_cmd)); | |
2648 | vty_out(vty, "\n"); | |
2649 | ||
2650 | vty_out(vty, "Type Add Update Del \n"); | |
2651 | vty_out(vty, "================================================== \n"); | |
2652 | vty_out(vty, "IPv4 %-12d%-12d%-12d\n", client->v4_route_add_cnt, | |
2653 | client->v4_route_upd8_cnt, client->v4_route_del_cnt); | |
2654 | vty_out(vty, "IPv6 %-12d%-12d%-12d\n", client->v6_route_add_cnt, | |
2655 | client->v6_route_upd8_cnt, client->v6_route_del_cnt); | |
2656 | vty_out(vty, "Redist:v4 %-12d%-12d%-12d\n", client->redist_v4_add_cnt, | |
2657 | 0, client->redist_v4_del_cnt); | |
2658 | vty_out(vty, "Redist:v6 %-12d%-12d%-12d\n", client->redist_v6_add_cnt, | |
2659 | 0, client->redist_v6_del_cnt); | |
2660 | vty_out(vty, "Connected %-12d%-12d%-12d\n", client->ifadd_cnt, 0, | |
2661 | client->ifdel_cnt); | |
2662 | vty_out(vty, "BFD peer %-12d%-12d%-12d\n", client->bfd_peer_add_cnt, | |
2663 | client->bfd_peer_upd8_cnt, client->bfd_peer_del_cnt); | |
2664 | vty_out(vty, "Interface Up Notifications: %d\n", client->ifup_cnt); | |
2665 | vty_out(vty, "Interface Down Notifications: %d\n", client->ifdown_cnt); | |
2666 | vty_out(vty, "VNI add notifications: %d\n", client->vniadd_cnt); | |
2667 | vty_out(vty, "VNI delete notifications: %d\n", client->vnidel_cnt); | |
2668 | vty_out(vty, "MAC-IP add notifications: %d\n", client->macipadd_cnt); | |
2669 | vty_out(vty, "MAC-IP delete notifications: %d\n", client->macipdel_cnt); | |
2670 | ||
2671 | vty_out(vty, "\n"); | |
2672 | return; | |
2673 | } | |
2674 | ||
2675 | static void zebra_show_client_brief(struct vty *vty, struct zserv *client) | |
2676 | { | |
2677 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2678 | char wbuf[ZEBRA_TIME_BUF]; | |
2679 | ||
2680 | vty_out(vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d\n", | |
2681 | zebra_route_string(client->proto), | |
2682 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2683 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2684 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2685 | client->v4_route_add_cnt + client->v4_route_upd8_cnt, | |
2686 | client->v4_route_del_cnt, | |
2687 | client->v6_route_add_cnt + client->v6_route_upd8_cnt, | |
2688 | client->v6_route_del_cnt); | |
2689 | } | |
2690 | ||
2691 | struct zserv *zebra_find_client(u_char proto) | |
2692 | { | |
2693 | struct listnode *node, *nnode; | |
2694 | struct zserv *client; | |
2695 | ||
2696 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { | |
2697 | if (client->proto == proto) | |
2698 | return client; | |
2699 | } | |
2700 | ||
2701 | return NULL; | |
8ed6821e | 2702 | } |
2703 | ||
9bf75362 | 2704 | #ifdef HAVE_NETLINK |
718e3744 | 2705 | /* Display default rtm_table for all clients. */ |
2706 | DEFUN (show_table, | |
2707 | show_table_cmd, | |
2708 | "show table", | |
2709 | SHOW_STR | |
2710 | "default routing table to use for all clients\n") | |
2711 | { | |
d62a17ae | 2712 | vty_out(vty, "table %d\n", zebrad.rtm_table_default); |
2713 | return CMD_SUCCESS; | |
718e3744 | 2714 | } |
2715 | ||
6147e2c6 | 2716 | DEFUN (config_table, |
718e3744 | 2717 | config_table_cmd, |
2718 | "table TABLENO", | |
2719 | "Configure target kernel routing table\n" | |
2720 | "TABLE integer\n") | |
2721 | { | |
d62a17ae | 2722 | zebrad.rtm_table_default = strtol(argv[1]->arg, (char **)0, 10); |
2723 | return CMD_SUCCESS; | |
718e3744 | 2724 | } |
2725 | ||
813d4307 DW |
2726 | DEFUN (no_config_table, |
2727 | no_config_table_cmd, | |
6af6be86 | 2728 | "no table [TABLENO]", |
813d4307 DW |
2729 | NO_STR |
2730 | "Configure target kernel routing table\n" | |
2731 | "TABLE integer\n") | |
2732 | { | |
d62a17ae | 2733 | zebrad.rtm_table_default = 0; |
2734 | return CMD_SUCCESS; | |
813d4307 | 2735 | } |
9bf75362 | 2736 | #endif |
813d4307 | 2737 | |
647e4f1f | 2738 | DEFUN (ip_forwarding, |
2739 | ip_forwarding_cmd, | |
2740 | "ip forwarding", | |
2741 | IP_STR | |
2742 | "Turn on IP forwarding") | |
2743 | { | |
d62a17ae | 2744 | int ret; |
647e4f1f | 2745 | |
d62a17ae | 2746 | ret = ipforward(); |
2747 | if (ret == 0) | |
2748 | ret = ipforward_on(); | |
647e4f1f | 2749 | |
d62a17ae | 2750 | if (ret == 0) { |
2751 | vty_out(vty, "Can't turn on IP forwarding\n"); | |
2752 | return CMD_WARNING_CONFIG_FAILED; | |
2753 | } | |
647e4f1f | 2754 | |
d62a17ae | 2755 | return CMD_SUCCESS; |
647e4f1f | 2756 | } |
2757 | ||
718e3744 | 2758 | DEFUN (no_ip_forwarding, |
2759 | no_ip_forwarding_cmd, | |
2760 | "no ip forwarding", | |
2761 | NO_STR | |
2762 | IP_STR | |
2763 | "Turn off IP forwarding") | |
2764 | { | |
d62a17ae | 2765 | int ret; |
718e3744 | 2766 | |
d62a17ae | 2767 | ret = ipforward(); |
2768 | if (ret != 0) | |
2769 | ret = ipforward_off(); | |
718e3744 | 2770 | |
d62a17ae | 2771 | if (ret != 0) { |
2772 | vty_out(vty, "Can't turn off IP forwarding\n"); | |
2773 | return CMD_WARNING_CONFIG_FAILED; | |
2774 | } | |
718e3744 | 2775 | |
d62a17ae | 2776 | return CMD_SUCCESS; |
718e3744 | 2777 | } |
2778 | ||
57282a31 DS |
2779 | DEFUN (show_zebra, |
2780 | show_zebra_cmd, | |
2781 | "show zebra", | |
2782 | SHOW_STR | |
2783 | "Zebra information\n") | |
2784 | { | |
d62a17ae | 2785 | struct vrf *vrf; |
57282a31 | 2786 | |
d62a17ae | 2787 | vty_out(vty, |
2788 | " Route Route Neighbor LSP LSP\n"); | |
2789 | vty_out(vty, | |
2790 | "VRF Installs Removals Updates Installs Removals\n"); | |
2791 | RB_FOREACH(vrf, vrf_name_head, &vrfs_by_name) | |
2792 | { | |
2793 | struct zebra_vrf *zvrf = vrf->info; | |
9d303b37 DL |
2794 | vty_out(vty, "%-25s %10" PRIu64 " %10" PRIu64 " %10" PRIu64 |
2795 | " %10" PRIu64 " %10" PRIu64 "\n", | |
d62a17ae | 2796 | vrf->name, zvrf->installs, zvrf->removals, |
2797 | zvrf->neigh_updates, zvrf->lsp_installs, | |
2798 | zvrf->lsp_removals); | |
2799 | } | |
57282a31 | 2800 | |
d62a17ae | 2801 | return CMD_SUCCESS; |
57282a31 DS |
2802 | } |
2803 | ||
718e3744 | 2804 | /* This command is for debugging purpose. */ |
2805 | DEFUN (show_zebra_client, | |
2806 | show_zebra_client_cmd, | |
2807 | "show zebra client", | |
2808 | SHOW_STR | |
49d73233 | 2809 | "Zebra information\n" |
b9ee4999 | 2810 | "Client information\n") |
718e3744 | 2811 | { |
d62a17ae | 2812 | struct listnode *node; |
2813 | struct zserv *client; | |
718e3744 | 2814 | |
d62a17ae | 2815 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) |
2816 | zebra_show_client_detail(vty, client); | |
04b02fda | 2817 | |
d62a17ae | 2818 | return CMD_SUCCESS; |
04b02fda DS |
2819 | } |
2820 | ||
2821 | /* This command is for debugging purpose. */ | |
2822 | DEFUN (show_zebra_client_summary, | |
2823 | show_zebra_client_summary_cmd, | |
2824 | "show zebra client summary", | |
2825 | SHOW_STR | |
b9ee4999 DS |
2826 | "Zebra information brief\n" |
2827 | "Client information brief\n" | |
2828 | "Brief Summary\n") | |
04b02fda | 2829 | { |
d62a17ae | 2830 | struct listnode *node; |
2831 | struct zserv *client; | |
04b02fda | 2832 | |
d62a17ae | 2833 | vty_out(vty, |
2834 | "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes \n"); | |
2835 | vty_out(vty, | |
2836 | "--------------------------------------------------------------------------------\n"); | |
04b02fda | 2837 | |
d62a17ae | 2838 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) |
2839 | zebra_show_client_brief(vty, client); | |
fb018d25 | 2840 | |
d62a17ae | 2841 | vty_out(vty, "Routes column shows (added+updated)/deleted\n"); |
2842 | return CMD_SUCCESS; | |
718e3744 | 2843 | } |
2844 | ||
2845 | /* Table configuration write function. */ | |
d62a17ae | 2846 | static int config_write_table(struct vty *vty) |
718e3744 | 2847 | { |
d62a17ae | 2848 | if (zebrad.rtm_table_default) |
2849 | vty_out(vty, "table %d\n", zebrad.rtm_table_default); | |
2850 | return 0; | |
718e3744 | 2851 | } |
2852 | ||
2853 | /* table node for routing tables. */ | |
d62a17ae | 2854 | static struct cmd_node table_node = {TABLE_NODE, |
2855 | "", /* This node has no interface. */ | |
2856 | 1}; | |
6b0655a2 | 2857 | |
718e3744 | 2858 | /* Only display ip forwarding is enabled or not. */ |
2859 | DEFUN (show_ip_forwarding, | |
2860 | show_ip_forwarding_cmd, | |
2861 | "show ip forwarding", | |
2862 | SHOW_STR | |
2863 | IP_STR | |
2864 | "IP forwarding status\n") | |
2865 | { | |
d62a17ae | 2866 | int ret; |
718e3744 | 2867 | |
d62a17ae | 2868 | ret = ipforward(); |
718e3744 | 2869 | |
d62a17ae | 2870 | if (ret == 0) |
2871 | vty_out(vty, "IP forwarding is off\n"); | |
2872 | else | |
2873 | vty_out(vty, "IP forwarding is on\n"); | |
2874 | return CMD_SUCCESS; | |
718e3744 | 2875 | } |
2876 | ||
718e3744 | 2877 | /* Only display ipv6 forwarding is enabled or not. */ |
2878 | DEFUN (show_ipv6_forwarding, | |
2879 | show_ipv6_forwarding_cmd, | |
2880 | "show ipv6 forwarding", | |
2881 | SHOW_STR | |
2882 | "IPv6 information\n" | |
2883 | "Forwarding status\n") | |
2884 | { | |
d62a17ae | 2885 | int ret; |
718e3744 | 2886 | |
d62a17ae | 2887 | ret = ipforward_ipv6(); |
718e3744 | 2888 | |
d62a17ae | 2889 | switch (ret) { |
2890 | case -1: | |
2891 | vty_out(vty, "ipv6 forwarding is unknown\n"); | |
2892 | break; | |
2893 | case 0: | |
2894 | vty_out(vty, "ipv6 forwarding is %s\n", "off"); | |
2895 | break; | |
2896 | case 1: | |
2897 | vty_out(vty, "ipv6 forwarding is %s\n", "on"); | |
2898 | break; | |
2899 | default: | |
2900 | vty_out(vty, "ipv6 forwarding is %s\n", "off"); | |
2901 | break; | |
2902 | } | |
2903 | return CMD_SUCCESS; | |
718e3744 | 2904 | } |
2905 | ||
55906724 | 2906 | DEFUN (ipv6_forwarding, |
2907 | ipv6_forwarding_cmd, | |
2908 | "ipv6 forwarding", | |
2909 | IPV6_STR | |
2910 | "Turn on IPv6 forwarding") | |
2911 | { | |
d62a17ae | 2912 | int ret; |
55906724 | 2913 | |
d62a17ae | 2914 | ret = ipforward_ipv6(); |
2915 | if (ret == 0) | |
2916 | ret = ipforward_ipv6_on(); | |
41d3fc96 | 2917 | |
d62a17ae | 2918 | if (ret == 0) { |
2919 | vty_out(vty, "Can't turn on IPv6 forwarding\n"); | |
2920 | return CMD_WARNING_CONFIG_FAILED; | |
2921 | } | |
55906724 | 2922 | |
d62a17ae | 2923 | return CMD_SUCCESS; |
55906724 | 2924 | } |
2925 | ||
718e3744 | 2926 | DEFUN (no_ipv6_forwarding, |
2927 | no_ipv6_forwarding_cmd, | |
2928 | "no ipv6 forwarding", | |
2929 | NO_STR | |
55906724 | 2930 | IPV6_STR |
2931 | "Turn off IPv6 forwarding") | |
718e3744 | 2932 | { |
d62a17ae | 2933 | int ret; |
718e3744 | 2934 | |
d62a17ae | 2935 | ret = ipforward_ipv6(); |
2936 | if (ret != 0) | |
2937 | ret = ipforward_ipv6_off(); | |
41d3fc96 | 2938 | |
d62a17ae | 2939 | if (ret != 0) { |
2940 | vty_out(vty, "Can't turn off IPv6 forwarding\n"); | |
2941 | return CMD_WARNING_CONFIG_FAILED; | |
2942 | } | |
718e3744 | 2943 | |
d62a17ae | 2944 | return CMD_SUCCESS; |
718e3744 | 2945 | } |
2946 | ||
718e3744 | 2947 | /* IPForwarding configuration write function. */ |
d62a17ae | 2948 | static int config_write_forwarding(struct vty *vty) |
718e3744 | 2949 | { |
d62a17ae | 2950 | /* FIXME: Find better place for that. */ |
2951 | router_id_write(vty); | |
18a6dce6 | 2952 | |
d62a17ae | 2953 | if (!ipforward()) |
2954 | vty_out(vty, "no ip forwarding\n"); | |
2955 | if (!ipforward_ipv6()) | |
2956 | vty_out(vty, "no ipv6 forwarding\n"); | |
2957 | vty_out(vty, "!\n"); | |
2958 | return 0; | |
718e3744 | 2959 | } |
2960 | ||
2961 | /* table node for routing tables. */ | |
d62a17ae | 2962 | static struct cmd_node forwarding_node = {FORWARDING_NODE, |
2963 | "", /* This node has no interface. */ | |
2964 | 1}; | |
718e3744 | 2965 | |
718e3744 | 2966 | /* Initialisation of zebra and installation of commands. */ |
d62a17ae | 2967 | void zebra_init(void) |
718e3744 | 2968 | { |
d62a17ae | 2969 | /* Client list init. */ |
2970 | zebrad.client_list = list_new(); | |
718e3744 | 2971 | |
d62a17ae | 2972 | /* Install configuration write function. */ |
2973 | install_node(&table_node, config_write_table); | |
2974 | install_node(&forwarding_node, config_write_forwarding); | |
718e3744 | 2975 | |
d62a17ae | 2976 | install_element(VIEW_NODE, &show_ip_forwarding_cmd); |
2977 | install_element(CONFIG_NODE, &ip_forwarding_cmd); | |
2978 | install_element(CONFIG_NODE, &no_ip_forwarding_cmd); | |
2979 | install_element(ENABLE_NODE, &show_zebra_cmd); | |
2980 | install_element(ENABLE_NODE, &show_zebra_client_cmd); | |
2981 | install_element(ENABLE_NODE, &show_zebra_client_summary_cmd); | |
718e3744 | 2982 | |
2983 | #ifdef HAVE_NETLINK | |
d62a17ae | 2984 | install_element(VIEW_NODE, &show_table_cmd); |
2985 | install_element(CONFIG_NODE, &config_table_cmd); | |
2986 | install_element(CONFIG_NODE, &no_config_table_cmd); | |
718e3744 | 2987 | #endif /* HAVE_NETLINK */ |
2988 | ||
d62a17ae | 2989 | install_element(VIEW_NODE, &show_ipv6_forwarding_cmd); |
2990 | install_element(CONFIG_NODE, &ipv6_forwarding_cmd); | |
2991 | install_element(CONFIG_NODE, &no_ipv6_forwarding_cmd); | |
7514fb77 | 2992 | |
d62a17ae | 2993 | /* Route-map */ |
2994 | zebra_route_map_init(); | |
718e3744 | 2995 | } |