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718e3744 | 1 | /* Zebra daemon server routine. |
2 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
ac4d0be5 | 17 | * along with GNU Zebra; see the file COPYING. If not, write to the |
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | * Boston, MA 02111-1307, USA. | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "prefix.h" | |
25 | #include "command.h" | |
26 | #include "if.h" | |
27 | #include "thread.h" | |
28 | #include "stream.h" | |
29 | #include "memory.h" | |
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" |
718e3744 | 42 | |
43 | #include "zebra/zserv.h" | |
7c551956 DS |
44 | #include "zebra/zebra_ns.h" |
45 | #include "zebra/zebra_vrf.h" | |
18a6dce6 | 46 | #include "zebra/router-id.h" |
718e3744 | 47 | #include "zebra/redistribute.h" |
48 | #include "zebra/debug.h" | |
49 | #include "zebra/ipforward.h" | |
fb018d25 | 50 | #include "zebra/zebra_rnh.h" |
5c610faf | 51 | #include "zebra/rt_netlink.h" |
88177fe3 DS |
52 | #include "zebra/interface.h" |
53 | #include "zebra/zebra_ptm.h" | |
4a04e5f7 | 54 | #include "zebra/rtadv.h" |
ce549947 | 55 | #include "zebra/zebra_mpls.h" |
e3be0432 | 56 | #include "zebra/zebra_mroute.h" |
fea12efb | 57 | #include "zebra/label_manager.h" |
6b0655a2 | 58 | |
718e3744 | 59 | /* Event list of zebra. */ |
60 | enum event { ZEBRA_SERV, ZEBRA_READ, ZEBRA_WRITE }; | |
61 | ||
ac4d0be5 | 62 | static void zebra_event(enum event event, int sock, struct zserv *client); |
ccf3557b | 63 | |
edd7c245 | 64 | extern struct zebra_privs_t zserv_privs; |
6b0655a2 | 65 | |
ac4d0be5 | 66 | static void zebra_client_close(struct zserv *client); |
67 | ||
68 | static int zserv_delayed_close(struct thread *thread) | |
69 | { | |
70 | struct zserv *client = THREAD_ARG(thread); | |
71 | ||
72 | client->t_suicide = NULL; | |
73 | zebra_client_close(client); | |
74 | return 0; | |
75 | } | |
76 | ||
77 | static int zserv_flush_data(struct thread *thread) | |
78 | { | |
79 | struct zserv *client = THREAD_ARG(thread); | |
80 | ||
81 | client->t_write = NULL; | |
82 | if (client->t_suicide) { | |
83 | zebra_client_close(client); | |
84 | return -1; | |
85 | } | |
86 | switch (buffer_flush_available(client->wb, client->sock)) { | |
87 | case BUFFER_ERROR: | |
88 | zlog_warn( | |
89 | "%s: buffer_flush_available failed on zserv client fd %d, " | |
90 | "closing", | |
91 | __func__, client->sock); | |
92 | zebra_client_close(client); | |
93 | client = NULL; | |
94 | break; | |
95 | case BUFFER_PENDING: | |
96 | client->t_write = thread_add_write( | |
97 | zebrad.master, zserv_flush_data, client, client->sock); | |
98 | break; | |
99 | case BUFFER_EMPTY: | |
100 | break; | |
101 | } | |
102 | ||
103 | if (client) | |
104 | client->last_write_time = monotime(NULL); | |
105 | return 0; | |
106 | } | |
107 | ||
108 | int zebra_server_send_message(struct zserv *client) | |
109 | { | |
110 | if (client->t_suicide) | |
111 | return -1; | |
112 | ||
113 | if (client->is_synchronous) | |
114 | return 0; | |
115 | ||
116 | stream_set_getp(client->obuf, 0); | |
117 | client->last_write_cmd = stream_getw_from(client->obuf, 6); | |
118 | switch (buffer_write(client->wb, client->sock, | |
119 | STREAM_DATA(client->obuf), | |
120 | stream_get_endp(client->obuf))) { | |
121 | case BUFFER_ERROR: | |
122 | zlog_warn( | |
123 | "%s: buffer_write failed to zserv client fd %d, closing", | |
124 | __func__, client->sock); | |
125 | /* Schedule a delayed close since many of the functions that | |
126 | call this | |
127 | one do not check the return code. They do not allow for the | |
128 | possibility that an I/O error may have caused the client to | |
129 | be | |
130 | deleted. */ | |
131 | client->t_suicide = thread_add_event( | |
132 | zebrad.master, zserv_delayed_close, client, 0); | |
133 | return -1; | |
134 | case BUFFER_EMPTY: | |
135 | THREAD_OFF(client->t_write); | |
136 | break; | |
137 | case BUFFER_PENDING: | |
138 | THREAD_WRITE_ON(zebrad.master, client->t_write, | |
139 | zserv_flush_data, client, client->sock); | |
140 | break; | |
141 | } | |
142 | ||
143 | client->last_write_time = monotime(NULL); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | void zserv_create_header(struct stream *s, uint16_t cmd, vrf_id_t vrf_id) | |
148 | { | |
149 | /* length placeholder, caller can update */ | |
150 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
151 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
152 | stream_putc(s, ZSERV_VERSION); | |
153 | stream_putw(s, vrf_id); | |
154 | stream_putw(s, cmd); | |
155 | } | |
156 | ||
157 | static void zserv_encode_interface(struct stream *s, struct interface *ifp) | |
158 | { | |
159 | /* Interface information. */ | |
160 | stream_put(s, ifp->name, INTERFACE_NAMSIZ); | |
161 | stream_putl(s, ifp->ifindex); | |
162 | stream_putc(s, ifp->status); | |
163 | stream_putq(s, ifp->flags); | |
164 | stream_putc(s, ifp->ptm_enable); | |
165 | stream_putc(s, ifp->ptm_status); | |
166 | stream_putl(s, ifp->metric); | |
167 | stream_putl(s, ifp->speed); | |
168 | stream_putl(s, ifp->mtu); | |
169 | stream_putl(s, ifp->mtu6); | |
170 | stream_putl(s, ifp->bandwidth); | |
171 | stream_putl(s, ifp->ll_type); | |
172 | stream_putl(s, ifp->hw_addr_len); | |
173 | if (ifp->hw_addr_len) | |
174 | stream_put(s, ifp->hw_addr, ifp->hw_addr_len); | |
175 | ||
176 | /* Then, Traffic Engineering parameters if any */ | |
177 | if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { | |
178 | stream_putc(s, 1); | |
179 | zebra_interface_link_params_write(s, ifp); | |
180 | } else | |
181 | stream_putc(s, 0); | |
182 | ||
183 | /* Write packet size. */ | |
184 | stream_putw_at(s, 0, stream_get_endp(s)); | |
185 | } | |
186 | ||
187 | static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) | |
188 | { | |
189 | /* Interface information. */ | |
190 | stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); | |
191 | ||
192 | /* Write packet size. */ | |
193 | stream_putw_at(s, 0, stream_get_endp(s)); | |
12f6fb97 DS |
194 | } |
195 | ||
718e3744 | 196 | /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ |
b9df2d25 | 197 | /* |
198 | * This function is called in the following situations: | |
199 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
200 | * from the client. | |
201 | * - at startup, when zebra figures out the available interfaces | |
202 | * - when an interface is added (where support for | |
203 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
204 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
205 | * received) | |
206 | */ | |
ac4d0be5 | 207 | int zsend_interface_add(struct zserv *client, struct interface *ifp) |
718e3744 | 208 | { |
ac4d0be5 | 209 | struct stream *s; |
718e3744 | 210 | |
ac4d0be5 | 211 | s = client->obuf; |
212 | stream_reset(s); | |
718e3744 | 213 | |
ac4d0be5 | 214 | zserv_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); |
215 | zserv_encode_interface(s, ifp); | |
718e3744 | 216 | |
ac4d0be5 | 217 | client->ifadd_cnt++; |
218 | return zebra_server_send_message(client); | |
718e3744 | 219 | } |
220 | ||
221 | /* Interface deletion from zebra daemon. */ | |
ac4d0be5 | 222 | int zsend_interface_delete(struct zserv *client, struct interface *ifp) |
718e3744 | 223 | { |
ac4d0be5 | 224 | struct stream *s; |
718e3744 | 225 | |
ac4d0be5 | 226 | s = client->obuf; |
227 | stream_reset(s); | |
718e3744 | 228 | |
ac4d0be5 | 229 | zserv_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); |
230 | zserv_encode_interface(s, ifp); | |
718e3744 | 231 | |
ac4d0be5 | 232 | client->ifdel_cnt++; |
233 | return zebra_server_send_message(client); | |
718e3744 | 234 | } |
235 | ||
ac4d0be5 | 236 | int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 | 237 | { |
ac4d0be5 | 238 | struct stream *s; |
12f6fb97 | 239 | |
ac4d0be5 | 240 | s = client->obuf; |
241 | stream_reset(s); | |
12f6fb97 | 242 | |
ac4d0be5 | 243 | zserv_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); |
244 | zserv_encode_vrf(s, zvrf); | |
12f6fb97 | 245 | |
ac4d0be5 | 246 | client->vrfadd_cnt++; |
247 | return zebra_server_send_message(client); | |
12f6fb97 DS |
248 | } |
249 | ||
250 | /* VRF deletion from zebra daemon. */ | |
ac4d0be5 | 251 | int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) |
12f6fb97 | 252 | { |
ac4d0be5 | 253 | struct stream *s; |
12f6fb97 | 254 | |
ac4d0be5 | 255 | s = client->obuf; |
256 | stream_reset(s); | |
12f6fb97 | 257 | |
ac4d0be5 | 258 | zserv_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); |
259 | zserv_encode_vrf(s, zvrf); | |
12f6fb97 | 260 | |
ac4d0be5 | 261 | client->vrfdel_cnt++; |
262 | return zebra_server_send_message(client); | |
12f6fb97 DS |
263 | } |
264 | ||
ac4d0be5 | 265 | int zsend_interface_link_params(struct zserv *client, struct interface *ifp) |
16f1b9ee | 266 | { |
ac4d0be5 | 267 | struct stream *s; |
16f1b9ee | 268 | |
ac4d0be5 | 269 | /* Check this client need interface information. */ |
270 | if (!client->ifinfo) | |
271 | return 0; | |
16f1b9ee | 272 | |
ac4d0be5 | 273 | if (!ifp->link_params) |
274 | return 0; | |
275 | s = client->obuf; | |
276 | stream_reset(s); | |
16f1b9ee | 277 | |
ac4d0be5 | 278 | zserv_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); |
16f1b9ee | 279 | |
ac4d0be5 | 280 | /* Add Interface Index */ |
281 | stream_putl(s, ifp->ifindex); | |
16f1b9ee | 282 | |
ac4d0be5 | 283 | /* Then TE Link Parameters */ |
284 | if (zebra_interface_link_params_write(s, ifp) == 0) | |
285 | return 0; | |
16f1b9ee | 286 | |
ac4d0be5 | 287 | /* Write packet size. */ |
288 | stream_putw_at(s, 0, stream_get_endp(s)); | |
16f1b9ee | 289 | |
ac4d0be5 | 290 | return zebra_server_send_message(client); |
16f1b9ee OD |
291 | } |
292 | ||
b9df2d25 | 293 | /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or |
ac4d0be5 | 294 | * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. |
b9df2d25 | 295 | * |
296 | * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: | |
297 | * - in response to a 3-byte ZEBRA_INTERFACE_ADD request | |
298 | * from the client, after the ZEBRA_INTERFACE_ADD has been | |
299 | * sent from zebra to the client | |
300 | * - redistribute new address info to all clients in the following situations | |
301 | * - at startup, when zebra figures out the available interfaces | |
302 | * - when an interface is added (where support for | |
303 | * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when | |
304 | * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is | |
305 | * received) | |
306 | * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" | |
307 | * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" | |
308 | * - when an RTM_NEWADDR message is received from the kernel, | |
ac4d0be5 | 309 | * |
310 | * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: | |
b9df2d25 | 311 | * |
312 | * zsend_interface_address(DELETE) | |
ac4d0be5 | 313 | * ^ |
314 | * | | |
315 | * zebra_interface_address_delete_update | |
b9df2d25 | 316 | * ^ ^ ^ |
6eb8827d | 317 | * | | if_delete_update |
318 | * | | | |
b9df2d25 | 319 | * ip_address_uninstall connected_delete_ipv4 |
320 | * [ipv6_addresss_uninstall] [connected_delete_ipv6] | |
321 | * ^ ^ | |
322 | * | | | |
323 | * | RTM_NEWADDR on routing/netlink socket | |
324 | * | | |
325 | * vty commands: | |
326 | * "no ip address A.B.C.D/M [label LINE]" | |
327 | * "no ip address A.B.C.D/M secondary" | |
328 | * ["no ipv6 address X:X::X:X/M"] | |
329 | * | |
330 | */ | |
ac4d0be5 | 331 | int zsend_interface_address(int cmd, struct zserv *client, |
332 | struct interface *ifp, struct connected *ifc) | |
718e3744 | 333 | { |
ac4d0be5 | 334 | int blen; |
335 | struct stream *s; | |
336 | struct prefix *p; | |
337 | ||
338 | s = client->obuf; | |
339 | stream_reset(s); | |
718e3744 | 340 | |
ac4d0be5 | 341 | zserv_create_header(s, cmd, ifp->vrf_id); |
342 | stream_putl(s, ifp->ifindex); | |
718e3744 | 343 | |
ac4d0be5 | 344 | /* Interface address flag. */ |
345 | stream_putc(s, ifc->flags); | |
718e3744 | 346 | |
ac4d0be5 | 347 | /* Prefix information. */ |
348 | p = ifc->address; | |
349 | stream_putc(s, p->family); | |
350 | blen = prefix_blen(p); | |
351 | stream_put(s, &p->u.prefix, blen); | |
b9df2d25 | 352 | |
ac4d0be5 | 353 | /* |
354 | * XXX gnu version does not send prefixlen for | |
355 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
356 | * but zebra_interface_address_delete_read() in the gnu version | |
357 | * expects to find it | |
358 | */ | |
359 | stream_putc(s, p->prefixlen); | |
718e3744 | 360 | |
ac4d0be5 | 361 | /* Destination. */ |
362 | p = ifc->destination; | |
363 | if (p) | |
364 | stream_put(s, &p->u.prefix, blen); | |
365 | else | |
366 | stream_put(s, NULL, blen); | |
718e3744 | 367 | |
ac4d0be5 | 368 | /* Write packet size. */ |
369 | stream_putw_at(s, 0, stream_get_endp(s)); | |
718e3744 | 370 | |
ac4d0be5 | 371 | client->connected_rt_add_cnt++; |
372 | return zebra_server_send_message(client); | |
718e3744 | 373 | } |
374 | ||
ac4d0be5 | 375 | static int zsend_interface_nbr_address(int cmd, struct zserv *client, |
376 | struct interface *ifp, | |
377 | struct nbr_connected *ifc) | |
a80beece | 378 | { |
ac4d0be5 | 379 | int blen; |
380 | struct stream *s; | |
381 | struct prefix *p; | |
a80beece | 382 | |
ac4d0be5 | 383 | s = client->obuf; |
384 | stream_reset(s); | |
a80beece | 385 | |
ac4d0be5 | 386 | zserv_create_header(s, cmd, ifp->vrf_id); |
387 | stream_putl(s, ifp->ifindex); | |
a80beece | 388 | |
ac4d0be5 | 389 | /* Prefix information. */ |
390 | p = ifc->address; | |
391 | stream_putc(s, p->family); | |
392 | blen = prefix_blen(p); | |
393 | stream_put(s, &p->u.prefix, blen); | |
a80beece | 394 | |
ac4d0be5 | 395 | /* |
396 | * XXX gnu version does not send prefixlen for | |
397 | * ZEBRA_INTERFACE_ADDRESS_DELETE | |
398 | * but zebra_interface_address_delete_read() in the gnu version | |
399 | * expects to find it | |
400 | */ | |
401 | stream_putc(s, p->prefixlen); | |
a80beece | 402 | |
ac4d0be5 | 403 | /* Write packet size. */ |
404 | stream_putw_at(s, 0, stream_get_endp(s)); | |
a80beece | 405 | |
ac4d0be5 | 406 | return zebra_server_send_message(client); |
a80beece DS |
407 | } |
408 | ||
409 | /* Interface address addition. */ | |
ac4d0be5 | 410 | static void zebra_interface_nbr_address_add_update(struct interface *ifp, |
411 | struct nbr_connected *ifc) | |
412 | { | |
413 | struct listnode *node, *nnode; | |
414 | struct zserv *client; | |
415 | struct prefix *p; | |
416 | ||
417 | if (IS_ZEBRA_DEBUG_EVENT) { | |
418 | char buf[INET6_ADDRSTRLEN]; | |
419 | ||
420 | p = ifc->address; | |
421 | zlog_debug( | |
422 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", | |
423 | inet_ntop(p->family, &p->u.prefix, buf, | |
424 | INET6_ADDRSTRLEN), | |
425 | p->prefixlen, ifc->ifp->name); | |
426 | } | |
a80beece | 427 | |
ac4d0be5 | 428 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) |
429 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
430 | client, ifp, ifc); | |
a80beece DS |
431 | } |
432 | ||
433 | /* Interface address deletion. */ | |
ac4d0be5 | 434 | static void zebra_interface_nbr_address_delete_update(struct interface *ifp, |
435 | struct nbr_connected *ifc) | |
436 | { | |
437 | struct listnode *node, *nnode; | |
438 | struct zserv *client; | |
439 | struct prefix *p; | |
440 | ||
441 | if (IS_ZEBRA_DEBUG_EVENT) { | |
442 | char buf[INET6_ADDRSTRLEN]; | |
443 | ||
444 | p = ifc->address; | |
445 | zlog_debug( | |
446 | "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", | |
447 | inet_ntop(p->family, &p->u.prefix, buf, | |
448 | INET6_ADDRSTRLEN), | |
449 | p->prefixlen, ifc->ifp->name); | |
450 | } | |
a80beece | 451 | |
ac4d0be5 | 452 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) |
453 | zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, | |
454 | client, ifp, ifc); | |
a80beece DS |
455 | } |
456 | ||
c8e264b6 | 457 | /* Send addresses on interface to client */ |
ac4d0be5 | 458 | int zsend_interface_addresses(struct zserv *client, struct interface *ifp) |
c8e264b6 | 459 | { |
ac4d0be5 | 460 | struct listnode *cnode, *cnnode; |
461 | struct connected *c; | |
462 | struct nbr_connected *nc; | |
c8e264b6 | 463 | |
ac4d0be5 | 464 | /* Send interface addresses. */ |
465 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
466 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
467 | continue; | |
c8e264b6 | 468 | |
ac4d0be5 | 469 | if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, |
470 | ifp, c) | |
471 | < 0) | |
472 | return -1; | |
473 | } | |
c8e264b6 | 474 | |
ac4d0be5 | 475 | /* Send interface neighbors. */ |
476 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { | |
477 | if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
478 | client, ifp, nc) | |
479 | < 0) | |
480 | return -1; | |
481 | } | |
c8e264b6 | 482 | |
ac4d0be5 | 483 | return 0; |
c8e264b6 | 484 | } |
485 | ||
486 | /* Notify client about interface moving from one VRF to another. | |
487 | * Whether client is interested in old and new VRF is checked by caller. | |
488 | */ | |
ac4d0be5 | 489 | int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, |
490 | vrf_id_t vrf_id) | |
c8e264b6 | 491 | { |
ac4d0be5 | 492 | struct stream *s; |
c8e264b6 | 493 | |
ac4d0be5 | 494 | s = client->obuf; |
495 | stream_reset(s); | |
c8e264b6 | 496 | |
ac4d0be5 | 497 | zserv_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); |
c8e264b6 | 498 | |
ac4d0be5 | 499 | /* Fill in the ifIndex of the interface and its new VRF (id) */ |
500 | stream_putl(s, ifp->ifindex); | |
501 | stream_putw(s, vrf_id); | |
c8e264b6 | 502 | |
ac4d0be5 | 503 | /* Write packet size. */ |
504 | stream_putw_at(s, 0, stream_get_endp(s)); | |
c8e264b6 | 505 | |
ac4d0be5 | 506 | client->if_vrfchg_cnt++; |
507 | return zebra_server_send_message(client); | |
c8e264b6 | 508 | } |
509 | ||
1d20ccf3 | 510 | /* Add new nbr connected IPv6 address */ |
ac4d0be5 | 511 | void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) |
a80beece | 512 | { |
ac4d0be5 | 513 | struct nbr_connected *ifc; |
514 | struct prefix p; | |
a80beece | 515 | |
ac4d0be5 | 516 | p.family = AF_INET6; |
517 | IPV6_ADDR_COPY(&p.u.prefix, address); | |
518 | p.prefixlen = IPV6_MAX_PREFIXLEN; | |
a80beece | 519 | |
ac4d0be5 | 520 | if (!(ifc = listnode_head(ifp->nbr_connected))) { |
521 | /* new addition */ | |
522 | ifc = nbr_connected_new(); | |
523 | ifc->address = prefix_new(); | |
524 | ifc->ifp = ifp; | |
525 | listnode_add(ifp->nbr_connected, ifc); | |
526 | } | |
a80beece | 527 | |
ac4d0be5 | 528 | prefix_copy(ifc->address, &p); |
a80beece | 529 | |
ac4d0be5 | 530 | zebra_interface_nbr_address_add_update(ifp, ifc); |
5c610faf | 531 | |
ac4d0be5 | 532 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); |
a80beece DS |
533 | } |
534 | ||
ac4d0be5 | 535 | void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) |
a80beece | 536 | { |
ac4d0be5 | 537 | struct nbr_connected *ifc; |
538 | struct prefix p; | |
a80beece | 539 | |
ac4d0be5 | 540 | p.family = AF_INET6; |
541 | IPV6_ADDR_COPY(&p.u.prefix, address); | |
542 | p.prefixlen = IPV6_MAX_PREFIXLEN; | |
a80beece | 543 | |
ac4d0be5 | 544 | ifc = nbr_connected_check(ifp, &p); |
545 | if (!ifc) | |
546 | return; | |
a80beece | 547 | |
ac4d0be5 | 548 | listnode_delete(ifp->nbr_connected, ifc); |
a80beece | 549 | |
ac4d0be5 | 550 | zebra_interface_nbr_address_delete_update(ifp, ifc); |
a80beece | 551 | |
ac4d0be5 | 552 | if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); |
5c610faf | 553 | |
ac4d0be5 | 554 | nbr_connected_free(ifc); |
a80beece DS |
555 | } |
556 | ||
b9df2d25 | 557 | /* |
558 | * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or | |
559 | * ZEBRA_INTERFACE_DOWN. | |
560 | * | |
561 | * The ZEBRA_INTERFACE_UP message is sent from the zebra server to | |
562 | * the clients in one of 2 situations: | |
563 | * - an if_up is detected e.g., as a result of an RTM_IFINFO message | |
564 | * - a vty command modifying the bandwidth of an interface is received. | |
565 | * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. | |
566 | */ | |
ac4d0be5 | 567 | int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) |
718e3744 | 568 | { |
ac4d0be5 | 569 | struct stream *s; |
718e3744 | 570 | |
ac4d0be5 | 571 | s = client->obuf; |
572 | stream_reset(s); | |
718e3744 | 573 | |
ac4d0be5 | 574 | zserv_create_header(s, cmd, ifp->vrf_id); |
575 | zserv_encode_interface(s, ifp); | |
718e3744 | 576 | |
ac4d0be5 | 577 | if (cmd == ZEBRA_INTERFACE_UP) |
578 | client->ifup_cnt++; | |
579 | else | |
580 | client->ifdown_cnt++; | |
04b02fda | 581 | |
ac4d0be5 | 582 | return zebra_server_send_message(client); |
718e3744 | 583 | } |
584 | ||
b9df2d25 | 585 | /* |
5048fe14 | 586 | * This is the new function to announce and withdraw redistributed routes, used |
587 | * by Zebra. This is the old zsend_route_multipath() function. That function | |
588 | * was duplicating code to send a lot of information that was essentially thrown | |
589 | * away or ignored by the receiver. This is the leaner function that is not a | |
590 | * duplicate of the zapi_ipv4_route_add/del. | |
b9df2d25 | 591 | * |
ac4d0be5 | 592 | * The primary difference is that this function merely sends a single NH instead |
593 | * of | |
5048fe14 | 594 | * all the nexthops. |
b9df2d25 | 595 | */ |
ac4d0be5 | 596 | int zsend_redistribute_route(int add, struct zserv *client, struct prefix *p, |
597 | struct prefix *src_p, struct rib *rib) | |
598 | { | |
599 | afi_t afi; | |
600 | int cmd; | |
601 | int psize; | |
602 | struct stream *s; | |
603 | struct nexthop *nexthop; | |
604 | unsigned long nhnummark = 0, messmark = 0; | |
605 | int nhnum = 0; | |
606 | u_char zapi_flags = 0; | |
607 | struct nexthop dummy_nh; | |
608 | ||
609 | afi = family2afi(p->family); | |
610 | if (add) { | |
611 | switch (afi) { | |
612 | case AFI_IP: | |
613 | cmd = ZEBRA_REDISTRIBUTE_IPV4_ADD; | |
614 | client->redist_v4_add_cnt++; | |
615 | break; | |
616 | case AFI_IP6: | |
617 | cmd = ZEBRA_REDISTRIBUTE_IPV6_ADD; | |
618 | client->redist_v6_add_cnt++; | |
619 | break; | |
620 | default: | |
621 | return -1; | |
622 | } | |
623 | } else { | |
624 | switch (afi) { | |
625 | case AFI_IP: | |
626 | cmd = ZEBRA_REDISTRIBUTE_IPV4_DEL; | |
627 | client->redist_v4_del_cnt++; | |
628 | break; | |
629 | case AFI_IP6: | |
630 | cmd = ZEBRA_REDISTRIBUTE_IPV6_DEL; | |
631 | client->redist_v6_del_cnt++; | |
632 | break; | |
633 | default: | |
634 | return -1; | |
635 | } | |
5048fe14 | 636 | } |
637 | ||
ac4d0be5 | 638 | s = client->obuf; |
639 | stream_reset(s); | |
640 | memset(&dummy_nh, 0, sizeof(struct nexthop)); | |
10fbd59a | 641 | |
ac4d0be5 | 642 | zserv_create_header(s, cmd, rib->vrf_id); |
643 | ||
644 | /* Put type and nexthop. */ | |
645 | stream_putc(s, rib->type); | |
646 | stream_putw(s, rib->instance); | |
647 | stream_putl(s, rib->flags); | |
648 | ||
649 | /* marker for message flags field */ | |
650 | messmark = stream_get_endp(s); | |
651 | stream_putc(s, 0); | |
652 | ||
653 | /* Prefix. */ | |
654 | psize = PSIZE(p->prefixlen); | |
655 | stream_putc(s, p->prefixlen); | |
656 | stream_write(s, (u_char *)&p->u.prefix, psize); | |
657 | ||
658 | if (src_p) { | |
659 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_SRCPFX); | |
660 | psize = PSIZE(src_p->prefixlen); | |
661 | stream_putc(s, src_p->prefixlen); | |
662 | stream_write(s, (u_char *)&src_p->u.prefix, psize); | |
078430f6 | 663 | } |
ac4d0be5 | 664 | |
665 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) { | |
666 | /* We don't send any nexthops when there's a multipath */ | |
667 | if (rib->nexthop_active_num > 1 | |
668 | && client->proto != ZEBRA_ROUTE_LDP) { | |
669 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
670 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
671 | ||
672 | stream_putc(s, 1); | |
673 | if (p->family == AF_INET) { | |
674 | stream_put_in_addr(s, &dummy_nh.gate.ipv4); | |
675 | } else if (p->family == AF_INET6) { | |
676 | stream_write(s, (u_char *)&dummy_nh.gate.ipv6, | |
677 | 16); | |
678 | } else { | |
679 | /* We don't handle anything else now, abort */ | |
680 | zlog_err( | |
681 | "%s: Unable to redistribute route of unknown family, %d\n", | |
682 | __func__, p->family); | |
683 | return -1; | |
684 | } | |
685 | stream_putc(s, 1); | |
686 | stream_putl(s, 0); /* dummy ifindex */ | |
687 | break; | |
688 | } | |
689 | ||
690 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) { | |
691 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_NEXTHOP); | |
692 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_IFINDEX); | |
693 | if (nhnummark == 0) { | |
694 | nhnummark = stream_get_endp(s); | |
695 | stream_putc(s, 1); /* placeholder */ | |
696 | } | |
697 | nhnum++; | |
698 | ||
699 | switch (nexthop->type) { | |
700 | case NEXTHOP_TYPE_IPV4: | |
701 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
702 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
703 | break; | |
704 | case NEXTHOP_TYPE_IPV6: | |
705 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
706 | /* Only BGP supports IPv4 prefix with IPv6 NH, | |
707 | * so kill this */ | |
708 | if (p->family == AF_INET) | |
709 | stream_put_in_addr(s, | |
710 | &dummy_nh.gate.ipv4); | |
711 | else | |
712 | stream_write( | |
713 | s, | |
714 | (u_char *)&nexthop->gate.ipv6, | |
715 | 16); | |
716 | break; | |
717 | default: | |
718 | if (cmd == ZEBRA_REDISTRIBUTE_IPV4_ADD | |
719 | || cmd == ZEBRA_REDISTRIBUTE_IPV4_DEL) { | |
720 | struct in_addr empty; | |
721 | memset(&empty, 0, | |
722 | sizeof(struct in_addr)); | |
723 | stream_write(s, (u_char *)&empty, | |
724 | IPV4_MAX_BYTELEN); | |
725 | } else { | |
726 | struct in6_addr empty; | |
727 | memset(&empty, 0, | |
728 | sizeof(struct in6_addr)); | |
729 | stream_write(s, (u_char *)&empty, | |
730 | IPV6_MAX_BYTELEN); | |
731 | } | |
732 | } | |
733 | ||
734 | /* Interface index. */ | |
735 | stream_putc(s, 1); | |
736 | stream_putl(s, nexthop->ifindex); | |
737 | ||
738 | /* ldpd needs all nexthops */ | |
739 | if (client->proto != ZEBRA_ROUTE_LDP) | |
740 | break; | |
741 | } | |
078430f6 | 742 | } |
ac4d0be5 | 743 | |
744 | /* Distance */ | |
745 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_DISTANCE); | |
746 | stream_putc(s, rib->distance); | |
747 | ||
748 | /* Metric */ | |
749 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_METRIC); | |
750 | stream_putl(s, rib->metric); | |
751 | ||
752 | /* Tag */ | |
753 | if (rib->tag) { | |
754 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_TAG); | |
755 | stream_putl(s, rib->tag); | |
078430f6 DS |
756 | } |
757 | ||
ac4d0be5 | 758 | /* MTU */ |
759 | SET_FLAG(zapi_flags, ZAPI_MESSAGE_MTU); | |
760 | stream_putl(s, rib->mtu); | |
761 | ||
762 | /* write real message flags value */ | |
763 | stream_putc_at(s, messmark, zapi_flags); | |
764 | ||
765 | /* Write next-hop number */ | |
766 | if (nhnummark) | |
767 | stream_putc_at(s, nhnummark, nhnum); | |
768 | ||
769 | /* Write packet size. */ | |
770 | stream_putw_at(s, 0, stream_get_endp(s)); | |
771 | ||
772 | return zebra_server_send_message(client); | |
773 | } | |
774 | ||
775 | static int zsend_write_nexthop(struct stream *s, struct nexthop *nexthop) | |
776 | { | |
777 | stream_putc(s, nexthop->type); | |
778 | switch (nexthop->type) { | |
779 | case NEXTHOP_TYPE_IPV4: | |
780 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
781 | stream_put_in_addr(s, &nexthop->gate.ipv4); | |
782 | stream_putl(s, nexthop->ifindex); | |
783 | break; | |
784 | case NEXTHOP_TYPE_IPV6: | |
785 | stream_put(s, &nexthop->gate.ipv6, 16); | |
786 | break; | |
787 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
788 | stream_put(s, &nexthop->gate.ipv6, 16); | |
789 | stream_putl(s, nexthop->ifindex); | |
790 | break; | |
791 | case NEXTHOP_TYPE_IFINDEX: | |
792 | stream_putl(s, nexthop->ifindex); | |
793 | break; | |
794 | default: | |
795 | /* do nothing */ | |
796 | break; | |
797 | } | |
798 | return 1; | |
fb018d25 DS |
799 | } |
800 | ||
801 | /* Nexthop register */ | |
ac4d0be5 | 802 | static int zserv_rnh_register(struct zserv *client, int sock, u_short length, |
803 | rnh_type_t type, struct zebra_vrf *zvrf) | |
804 | { | |
805 | struct rnh *rnh; | |
806 | struct stream *s; | |
807 | struct prefix p; | |
808 | u_short l = 0; | |
809 | u_char flags = 0; | |
810 | ||
811 | if (IS_ZEBRA_DEBUG_NHT) | |
812 | zlog_debug( | |
813 | "rnh_register msg from client %s: length=%d, type=%s\n", | |
814 | zebra_route_string(client->proto), length, | |
815 | (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route"); | |
816 | ||
817 | s = client->ibuf; | |
818 | ||
819 | client->nh_reg_time = monotime(NULL); | |
820 | ||
821 | while (l < length) { | |
822 | flags = stream_getc(s); | |
823 | p.family = stream_getw(s); | |
824 | p.prefixlen = stream_getc(s); | |
825 | l += 4; | |
826 | if (p.family == AF_INET) { | |
827 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
828 | l += IPV4_MAX_BYTELEN; | |
829 | } else if (p.family == AF_INET6) { | |
830 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
831 | l += IPV6_MAX_BYTELEN; | |
832 | } else { | |
833 | zlog_err( | |
834 | "rnh_register: Received unknown family type %d\n", | |
835 | p.family); | |
836 | return -1; | |
837 | } | |
838 | rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type); | |
839 | if (type == RNH_NEXTHOP_TYPE) { | |
840 | if (flags | |
841 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
842 | SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
843 | else if (!flags | |
844 | && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) | |
845 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); | |
846 | } else if (type == RNH_IMPORT_CHECK_TYPE) { | |
847 | if (flags | |
848 | && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) | |
849 | SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
850 | else if (!flags && CHECK_FLAG(rnh->flags, | |
851 | ZEBRA_NHT_EXACT_MATCH)) | |
852 | UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); | |
853 | } | |
854 | ||
855 | zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); | |
856 | /* Anything not AF_INET/INET6 has been filtered out above */ | |
857 | zebra_evaluate_rnh(zvrf_id(zvrf), p.family, 1, type, &p); | |
078430f6 | 858 | } |
ac4d0be5 | 859 | return 0; |
860 | } | |
861 | ||
862 | /* Nexthop register */ | |
863 | static int zserv_rnh_unregister(struct zserv *client, int sock, u_short length, | |
864 | rnh_type_t type, struct zebra_vrf *zvrf) | |
865 | { | |
866 | struct rnh *rnh; | |
867 | struct stream *s; | |
868 | struct prefix p; | |
869 | u_short l = 0; | |
870 | ||
871 | if (IS_ZEBRA_DEBUG_NHT) | |
872 | zlog_debug("rnh_unregister msg from client %s: length=%d\n", | |
873 | zebra_route_string(client->proto), length); | |
874 | ||
875 | s = client->ibuf; | |
876 | ||
877 | while (l < length) { | |
878 | (void)stream_getc( | |
879 | s); // Connected or not. Not used in this function | |
880 | p.family = stream_getw(s); | |
881 | p.prefixlen = stream_getc(s); | |
882 | l += 4; | |
883 | if (p.family == AF_INET) { | |
884 | p.u.prefix4.s_addr = stream_get_ipv4(s); | |
885 | l += IPV4_MAX_BYTELEN; | |
886 | } else if (p.family == AF_INET6) { | |
887 | stream_get(&p.u.prefix6, s, IPV6_MAX_BYTELEN); | |
888 | l += IPV6_MAX_BYTELEN; | |
889 | } else { | |
890 | zlog_err( | |
891 | "rnh_register: Received unknown family type %d\n", | |
892 | p.family); | |
893 | return -1; | |
894 | } | |
895 | rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); | |
896 | if (rnh) { | |
897 | client->nh_dereg_time = monotime(NULL); | |
898 | zebra_remove_rnh_client(rnh, client, type); | |
899 | } | |
04b02fda | 900 | } |
ac4d0be5 | 901 | return 0; |
fb018d25 DS |
902 | } |
903 | ||
6f61a5a3 EM |
904 | /* |
905 | Modified version of zsend_ipv4_nexthop_lookup(): | |
906 | Query unicast rib if nexthop is not found on mrib. | |
907 | Returns both route metric and protocol distance. | |
908 | */ | |
ac4d0be5 | 909 | static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, |
910 | struct in_addr addr, struct rib *rib, | |
911 | struct zebra_vrf *zvrf) | |
912 | { | |
913 | struct stream *s; | |
914 | unsigned long nump; | |
915 | u_char num; | |
916 | struct nexthop *nexthop; | |
917 | ||
918 | /* Get output stream. */ | |
919 | s = client->obuf; | |
920 | stream_reset(s); | |
921 | ||
922 | /* Fill in result. */ | |
923 | zserv_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); | |
924 | stream_put_in_addr(s, &addr); | |
925 | ||
926 | if (rib) { | |
927 | stream_putc(s, rib->distance); | |
928 | stream_putl(s, rib->metric); | |
929 | num = 0; | |
930 | nump = stream_get_endp( | |
931 | s); /* remember position for nexthop_num */ | |
932 | stream_putc(s, 0); /* reserve room for nexthop_num */ | |
933 | /* Only non-recursive routes are elegible to resolve the nexthop | |
934 | * we | |
935 | * are looking up. Therefore, we will just iterate over the top | |
936 | * chain of nexthops. */ | |
937 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
938 | if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
939 | num += zsend_write_nexthop(s, nexthop); | |
940 | ||
941 | stream_putc_at(s, nump, num); /* store nexthop_num */ | |
942 | } else { | |
943 | stream_putc(s, 0); /* distance */ | |
944 | stream_putl(s, 0); /* metric */ | |
945 | stream_putc(s, 0); /* nexthop_num */ | |
946 | } | |
947 | ||
948 | stream_putw_at(s, 0, stream_get_endp(s)); | |
949 | ||
950 | return zebra_server_send_message(client); | |
6f61a5a3 EM |
951 | } |
952 | ||
18a6dce6 | 953 | /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ |
ac4d0be5 | 954 | int zsend_router_id_update(struct zserv *client, struct prefix *p, |
955 | vrf_id_t vrf_id) | |
18a6dce6 | 956 | { |
ac4d0be5 | 957 | struct stream *s; |
958 | int blen; | |
18a6dce6 | 959 | |
ac4d0be5 | 960 | /* Check this client need interface information. */ |
961 | if (!vrf_bitmap_check(client->ridinfo, vrf_id)) | |
962 | return 0; | |
18a6dce6 | 963 | |
ac4d0be5 | 964 | s = client->obuf; |
965 | stream_reset(s); | |
18a6dce6 | 966 | |
ac4d0be5 | 967 | /* Message type. */ |
968 | zserv_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); | |
18a6dce6 | 969 | |
ac4d0be5 | 970 | /* Prefix information. */ |
971 | stream_putc(s, p->family); | |
972 | blen = prefix_blen(p); | |
973 | stream_put(s, &p->u.prefix, blen); | |
974 | stream_putc(s, p->prefixlen); | |
18a6dce6 | 975 | |
ac4d0be5 | 976 | /* Write packet size. */ |
977 | stream_putw_at(s, 0, stream_get_endp(s)); | |
18a6dce6 | 978 | |
ac4d0be5 | 979 | return zebra_server_send_message(client); |
18a6dce6 | 980 | } |
6b0655a2 | 981 | |
6da80de9 | 982 | /* |
983 | * Function used by Zebra to send a PW status update to LDP daemon | |
984 | */ | |
ac4d0be5 | 985 | int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) |
6da80de9 | 986 | { |
ac4d0be5 | 987 | struct stream *s; |
6da80de9 | 988 | |
ac4d0be5 | 989 | s = client->obuf; |
990 | stream_reset(s); | |
6da80de9 | 991 | |
ac4d0be5 | 992 | zserv_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); |
993 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
994 | stream_putl(s, pw->ifindex); | |
995 | stream_putl(s, pw->status); | |
6da80de9 | 996 | |
ac4d0be5 | 997 | /* Put length at the first point of the stream. */ |
998 | stream_putw_at(s, 0, stream_get_endp(s)); | |
6da80de9 | 999 | |
ac4d0be5 | 1000 | return zebra_server_send_message(client); |
6da80de9 | 1001 | } |
1002 | ||
718e3744 | 1003 | /* Register zebra server interface information. Send current all |
1004 | interface and address information. */ | |
ac4d0be5 | 1005 | static int zread_interface_add(struct zserv *client, u_short length, |
1006 | struct zebra_vrf *zvrf) | |
718e3744 | 1007 | { |
ac4d0be5 | 1008 | struct vrf *vrf; |
1009 | struct listnode *ifnode, *ifnnode; | |
1010 | struct interface *ifp; | |
718e3744 | 1011 | |
ac4d0be5 | 1012 | /* Interface information is needed. */ |
1013 | vrf_bitmap_set(client->ifinfo, zvrf_id(zvrf)); | |
718e3744 | 1014 | |
ac4d0be5 | 1015 | RB_FOREACH(vrf, vrf_id_head, &vrfs_by_id) |
1016 | { | |
1017 | for (ALL_LIST_ELEMENTS(vrf->iflist, ifnode, ifnnode, ifp)) { | |
1018 | /* Skip pseudo interface. */ | |
1019 | if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) | |
1020 | continue; | |
718e3744 | 1021 | |
ac4d0be5 | 1022 | if (zsend_interface_add(client, ifp) < 0) |
1023 | return -1; | |
718e3744 | 1024 | |
ac4d0be5 | 1025 | if (zsend_interface_addresses(client, ifp) < 0) |
1026 | return -1; | |
1027 | } | |
1028 | } | |
1029 | return 0; | |
718e3744 | 1030 | } |
1031 | ||
1032 | /* Unregister zebra server interface information. */ | |
ac4d0be5 | 1033 | static int zread_interface_delete(struct zserv *client, u_short length, |
1034 | struct zebra_vrf *zvrf) | |
718e3744 | 1035 | { |
ac4d0be5 | 1036 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); |
1037 | return 0; | |
718e3744 | 1038 | } |
1039 | ||
ac4d0be5 | 1040 | void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, |
1041 | const unsigned int nexthop_num) | |
6878b9db | 1042 | { |
ac4d0be5 | 1043 | if (nexthop_num > multipath_num) { |
1044 | char buff[PREFIX2STR_BUFFER]; | |
1045 | prefix2str(p, buff, sizeof(buff)); | |
1046 | zlog_warn( | |
1047 | "%s: Prefix %s has %d nexthops, but we can only use the first %d", | |
1048 | caller, buff, nexthop_num, multipath_num); | |
1049 | } | |
6878b9db DS |
1050 | } |
1051 | ||
718e3744 | 1052 | /* This function support multiple nexthop. */ |
ac4d0be5 | 1053 | /* |
b9df2d25 | 1054 | * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update rib and |
ac4d0be5 | 1055 | * add kernel route. |
b9df2d25 | 1056 | */ |
ac4d0be5 | 1057 | static int zread_ipv4_add(struct zserv *client, u_short length, |
1058 | struct zebra_vrf *zvrf) | |
1059 | { | |
1060 | int i; | |
1061 | struct rib *rib; | |
1062 | struct prefix p; | |
1063 | u_char message; | |
1064 | struct in_addr nexthop; | |
1065 | u_char nexthop_num; | |
1066 | u_char nexthop_type; | |
1067 | struct stream *s; | |
1068 | ifindex_t ifindex; | |
1069 | safi_t safi; | |
1070 | int ret; | |
1071 | ||
1072 | /* Get input stream. */ | |
1073 | s = client->ibuf; | |
1074 | ||
1075 | /* Allocate new rib. */ | |
1076 | rib = XCALLOC(MTYPE_RIB, sizeof(struct rib)); | |
1077 | ||
1078 | /* Type, flags, message. */ | |
1079 | rib->type = stream_getc(s); | |
1080 | rib->instance = stream_getw(s); | |
1081 | rib->flags = stream_getl(s); | |
1082 | message = stream_getc(s); | |
1083 | safi = stream_getw(s); | |
1084 | rib->uptime = time(NULL); | |
1085 | ||
1086 | /* IPv4 prefix. */ | |
1087 | memset(&p, 0, sizeof(struct prefix_ipv4)); | |
1088 | p.family = AF_INET; | |
1089 | p.prefixlen = stream_getc(s); | |
1090 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1091 | ||
1092 | /* VRF ID */ | |
1093 | rib->vrf_id = zvrf_id(zvrf); | |
1094 | ||
1095 | /* Nexthop parse. */ | |
1096 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1097 | nexthop_num = stream_getc(s); | |
1098 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1099 | nexthop_num); | |
1100 | ||
1101 | for (i = 0; i < nexthop_num; i++) { | |
1102 | nexthop_type = stream_getc(s); | |
1103 | ||
1104 | switch (nexthop_type) { | |
1105 | case NEXTHOP_TYPE_IFINDEX: | |
1106 | ifindex = stream_getl(s); | |
1107 | rib_nexthop_ifindex_add(rib, ifindex); | |
1108 | break; | |
1109 | case NEXTHOP_TYPE_IPV4: | |
1110 | nexthop.s_addr = stream_get_ipv4(s); | |
1111 | rib_nexthop_ipv4_add(rib, &nexthop, NULL); | |
1112 | break; | |
1113 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1114 | nexthop.s_addr = stream_get_ipv4(s); | |
1115 | ifindex = stream_getl(s); | |
1116 | rib_nexthop_ipv4_ifindex_add(rib, &nexthop, | |
1117 | NULL, ifindex); | |
1118 | break; | |
1119 | case NEXTHOP_TYPE_IPV6: | |
1120 | stream_forward_getp(s, IPV6_MAX_BYTELEN); | |
1121 | break; | |
1122 | case NEXTHOP_TYPE_BLACKHOLE: | |
1123 | rib_nexthop_blackhole_add(rib); | |
1124 | break; | |
1125 | } | |
1126 | } | |
718e3744 | 1127 | } |
718e3744 | 1128 | |
ac4d0be5 | 1129 | /* Distance. */ |
1130 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1131 | rib->distance = stream_getc(s); | |
1132 | ||
1133 | /* Metric. */ | |
1134 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1135 | rib->metric = stream_getl(s); | |
718e3744 | 1136 | |
ac4d0be5 | 1137 | /* Tag */ |
1138 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1139 | rib->tag = stream_getl(s); | |
1140 | else | |
1141 | rib->tag = 0; | |
0d9551dc | 1142 | |
ac4d0be5 | 1143 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) |
1144 | rib->mtu = stream_getl(s); | |
1145 | else | |
1146 | rib->mtu = 0; | |
c50ca33a | 1147 | |
ac4d0be5 | 1148 | /* Table */ |
1149 | rib->table = zvrf->table_id; | |
12f6fb97 | 1150 | |
ac4d0be5 | 1151 | ret = rib_add_multipath(AFI_IP, safi, &p, NULL, rib); |
04b02fda | 1152 | |
ac4d0be5 | 1153 | /* Stats */ |
1154 | if (ret > 0) | |
1155 | client->v4_route_add_cnt++; | |
1156 | else if (ret < 0) | |
1157 | client->v4_route_upd8_cnt++; | |
1158 | return 0; | |
718e3744 | 1159 | } |
1160 | ||
1161 | /* Zebra server IPv4 prefix delete function. */ | |
ac4d0be5 | 1162 | static int zread_ipv4_delete(struct zserv *client, u_short length, |
1163 | struct zebra_vrf *zvrf) | |
1164 | { | |
1165 | int i; | |
1166 | struct stream *s; | |
1167 | struct zapi_ipv4 api; | |
1168 | struct in_addr nexthop; | |
1169 | union g_addr *nexthop_p; | |
1170 | unsigned long ifindex; | |
1171 | struct prefix p; | |
1172 | u_char nexthop_num; | |
1173 | u_char nexthop_type; | |
1174 | u_int32_t table_id; | |
1175 | ||
1176 | s = client->ibuf; | |
1177 | ifindex = 0; | |
1178 | nexthop.s_addr = 0; | |
1179 | nexthop_p = NULL; | |
1180 | ||
1181 | /* Type, flags, message. */ | |
1182 | api.type = stream_getc(s); | |
1183 | api.instance = stream_getw(s); | |
1184 | api.flags = stream_getl(s); | |
1185 | api.message = stream_getc(s); | |
1186 | api.safi = stream_getw(s); | |
1187 | ||
1188 | /* IPv4 prefix. */ | |
1189 | memset(&p, 0, sizeof(struct prefix)); | |
1190 | p.family = AF_INET; | |
1191 | p.prefixlen = stream_getc(s); | |
1192 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1193 | ||
1194 | /* Nexthop, ifindex, distance, metric. */ | |
1195 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { | |
1196 | nexthop_num = stream_getc(s); | |
1197 | ||
1198 | for (i = 0; i < nexthop_num; i++) { | |
1199 | nexthop_type = stream_getc(s); | |
1200 | ||
1201 | switch (nexthop_type) { | |
1202 | case NEXTHOP_TYPE_IFINDEX: | |
1203 | ifindex = stream_getl(s); | |
1204 | break; | |
1205 | case NEXTHOP_TYPE_IPV4: | |
1206 | nexthop.s_addr = stream_get_ipv4(s); | |
1207 | nexthop_p = (union g_addr *)&nexthop; | |
1208 | break; | |
1209 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1210 | nexthop.s_addr = stream_get_ipv4(s); | |
1211 | nexthop_p = (union g_addr *)&nexthop; | |
1212 | ifindex = stream_getl(s); | |
1213 | break; | |
1214 | case NEXTHOP_TYPE_IPV6: | |
1215 | stream_forward_getp(s, IPV6_MAX_BYTELEN); | |
1216 | break; | |
1217 | } | |
1218 | } | |
718e3744 | 1219 | } |
ac4d0be5 | 1220 | |
1221 | /* Distance. */ | |
1222 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) | |
1223 | api.distance = stream_getc(s); | |
1224 | else | |
1225 | api.distance = 0; | |
1226 | ||
1227 | /* Metric. */ | |
1228 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1229 | api.metric = stream_getl(s); | |
1230 | else | |
1231 | api.metric = 0; | |
1232 | ||
1233 | /* tag */ | |
1234 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1235 | api.tag = stream_getl(s); | |
1236 | else | |
1237 | api.tag = 0; | |
1238 | ||
1239 | table_id = zvrf->table_id; | |
1240 | ||
1241 | rib_delete(AFI_IP, api.safi, zvrf_id(zvrf), api.type, api.instance, | |
1242 | api.flags, &p, NULL, nexthop_p, ifindex, table_id); | |
1243 | client->v4_route_del_cnt++; | |
1244 | return 0; | |
718e3744 | 1245 | } |
1246 | ||
6f61a5a3 | 1247 | /* MRIB Nexthop lookup for IPv4. */ |
ac4d0be5 | 1248 | static int zread_ipv4_nexthop_lookup_mrib(struct zserv *client, u_short length, |
1249 | struct zebra_vrf *zvrf) | |
6f61a5a3 | 1250 | { |
ac4d0be5 | 1251 | struct in_addr addr; |
1252 | struct rib *rib; | |
6f61a5a3 | 1253 | |
ac4d0be5 | 1254 | addr.s_addr = stream_get_ipv4(client->ibuf); |
1255 | rib = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); | |
1256 | return zsend_ipv4_nexthop_lookup_mrib(client, addr, rib, zvrf); | |
6f61a5a3 EM |
1257 | } |
1258 | ||
8a92a8a0 | 1259 | /* Zebra server IPv6 prefix add function. */ |
ac4d0be5 | 1260 | static int zread_ipv4_route_ipv6_nexthop_add(struct zserv *client, |
1261 | u_short length, | |
1262 | struct zebra_vrf *zvrf) | |
1263 | { | |
1264 | unsigned int i; | |
1265 | struct stream *s; | |
1266 | struct in6_addr nexthop; | |
1267 | struct rib *rib; | |
1268 | u_char message; | |
1269 | u_char nexthop_num; | |
1270 | u_char nexthop_type; | |
1271 | struct prefix p; | |
1272 | safi_t safi; | |
1273 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1274 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1275 | int ret; | |
1276 | ||
1277 | /* Get input stream. */ | |
1278 | s = client->ibuf; | |
1279 | ||
1280 | memset(&nexthop, 0, sizeof(struct in6_addr)); | |
1281 | ||
1282 | /* Allocate new rib. */ | |
1283 | rib = XCALLOC(MTYPE_RIB, sizeof(struct rib)); | |
1284 | ||
1285 | /* Type, flags, message. */ | |
1286 | rib->type = stream_getc(s); | |
1287 | rib->instance = stream_getw(s); | |
1288 | rib->flags = stream_getl(s); | |
1289 | message = stream_getc(s); | |
1290 | safi = stream_getw(s); | |
1291 | rib->uptime = time(NULL); | |
1292 | ||
1293 | /* IPv4 prefix. */ | |
1294 | memset(&p, 0, sizeof(struct prefix_ipv4)); | |
1295 | p.family = AF_INET; | |
1296 | p.prefixlen = stream_getc(s); | |
1297 | stream_get(&p.u.prefix4, s, PSIZE(p.prefixlen)); | |
1298 | ||
1299 | /* VRF ID */ | |
1300 | rib->vrf_id = zvrf_id(zvrf); | |
1301 | ||
1302 | /* We need to give nh-addr, nh-ifindex with the same next-hop object | |
1303 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1304 | * these. Clients should send the same number of paired set of | |
1305 | * next-hop-addr/next-hop-ifindices. */ | |
1306 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1307 | unsigned int nh_count = 0; | |
1308 | unsigned int if_count = 0; | |
1309 | unsigned int max_nh_if = 0; | |
1310 | ||
1311 | nexthop_num = stream_getc(s); | |
1312 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1313 | nexthop_num); | |
1314 | for (i = 0; i < nexthop_num; i++) { | |
1315 | nexthop_type = stream_getc(s); | |
1316 | ||
1317 | switch (nexthop_type) { | |
1318 | case NEXTHOP_TYPE_IPV6: | |
1319 | stream_get(&nexthop, s, 16); | |
1320 | if (nh_count < multipath_num) { | |
1321 | nexthops[nh_count++] = nexthop; | |
1322 | } | |
1323 | break; | |
1324 | case NEXTHOP_TYPE_IFINDEX: | |
1325 | if (if_count < multipath_num) { | |
1326 | ifindices[if_count++] = stream_getl(s); | |
1327 | } | |
1328 | break; | |
1329 | case NEXTHOP_TYPE_BLACKHOLE: | |
1330 | rib_nexthop_blackhole_add(rib); | |
1331 | break; | |
1332 | } | |
1333 | } | |
1334 | ||
1335 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1336 | for (i = 0; i < max_nh_if; i++) { | |
1337 | if ((i < nh_count) | |
1338 | && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { | |
1339 | if ((i < if_count) && ifindices[i]) { | |
1340 | rib_nexthop_ipv6_ifindex_add( | |
1341 | rib, &nexthops[i], | |
1342 | ifindices[i]); | |
1343 | } else { | |
1344 | rib_nexthop_ipv6_add(rib, &nexthops[i]); | |
1345 | } | |
1346 | } else { | |
1347 | if ((i < if_count) && ifindices[i]) { | |
1348 | rib_nexthop_ifindex_add(rib, | |
1349 | ifindices[i]); | |
1350 | } | |
1351 | } | |
1352 | } | |
8a92a8a0 DS |
1353 | } |
1354 | ||
ac4d0be5 | 1355 | /* Distance. */ |
1356 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1357 | rib->distance = stream_getc(s); | |
1358 | ||
1359 | /* Metric. */ | |
1360 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1361 | rib->metric = stream_getl(s); | |
1362 | ||
1363 | /* Tag */ | |
1364 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1365 | rib->tag = stream_getl(s); | |
1366 | else | |
1367 | rib->tag = 0; | |
1368 | ||
1369 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) | |
1370 | rib->mtu = stream_getl(s); | |
1371 | else | |
1372 | rib->mtu = 0; | |
1373 | ||
1374 | /* Table */ | |
1375 | rib->table = zvrf->table_id; | |
1376 | ||
1377 | ret = rib_add_multipath(AFI_IP6, safi, &p, NULL, rib); | |
1378 | /* Stats */ | |
1379 | if (ret > 0) | |
1380 | client->v4_route_add_cnt++; | |
1381 | else if (ret < 0) | |
1382 | client->v4_route_upd8_cnt++; | |
1383 | ||
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | static int zread_ipv6_add(struct zserv *client, u_short length, | |
1388 | struct zebra_vrf *zvrf) | |
1389 | { | |
1390 | unsigned int i; | |
1391 | struct stream *s; | |
1392 | struct in6_addr nexthop; | |
1393 | struct rib *rib; | |
1394 | u_char message; | |
1395 | u_char nexthop_num; | |
1396 | u_char nexthop_type; | |
1397 | struct prefix p; | |
1398 | struct prefix_ipv6 src_p, *src_pp; | |
1399 | safi_t safi; | |
1400 | static struct in6_addr nexthops[MULTIPATH_NUM]; | |
1401 | static unsigned int ifindices[MULTIPATH_NUM]; | |
1402 | int ret; | |
1403 | ||
1404 | /* Get input stream. */ | |
1405 | s = client->ibuf; | |
1406 | ||
1407 | memset(&nexthop, 0, sizeof(struct in6_addr)); | |
1408 | ||
1409 | /* Allocate new rib. */ | |
1410 | rib = XCALLOC(MTYPE_RIB, sizeof(struct rib)); | |
1411 | ||
1412 | /* Type, flags, message. */ | |
1413 | rib->type = stream_getc(s); | |
1414 | rib->instance = stream_getw(s); | |
1415 | rib->flags = stream_getl(s); | |
1416 | message = stream_getc(s); | |
1417 | safi = stream_getw(s); | |
1418 | rib->uptime = time(NULL); | |
1419 | ||
1420 | /* IPv6 prefix. */ | |
1421 | memset(&p, 0, sizeof(struct prefix_ipv6)); | |
1422 | p.family = AF_INET6; | |
1423 | p.prefixlen = stream_getc(s); | |
1424 | stream_get(&p.u.prefix6, s, PSIZE(p.prefixlen)); | |
1425 | ||
1426 | if (CHECK_FLAG(message, ZAPI_MESSAGE_SRCPFX)) { | |
1427 | memset(&src_p, 0, sizeof(struct prefix_ipv6)); | |
1428 | src_p.family = AF_INET6; | |
1429 | src_p.prefixlen = stream_getc(s); | |
1430 | stream_get(&src_p.prefix, s, PSIZE(src_p.prefixlen)); | |
1431 | src_pp = &src_p; | |
1432 | } else | |
1433 | src_pp = NULL; | |
1434 | ||
1435 | /* We need to give nh-addr, nh-ifindex with the same next-hop object | |
1436 | * to the rib to ensure that IPv6 multipathing works; need to coalesce | |
1437 | * these. Clients should send the same number of paired set of | |
1438 | * next-hop-addr/next-hop-ifindices. */ | |
1439 | if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { | |
1440 | unsigned int nh_count = 0; | |
1441 | unsigned int if_count = 0; | |
1442 | unsigned int max_nh_if = 0; | |
1443 | ||
1444 | nexthop_num = stream_getc(s); | |
1445 | zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, | |
1446 | nexthop_num); | |
1447 | for (i = 0; i < nexthop_num; i++) { | |
1448 | nexthop_type = stream_getc(s); | |
1449 | ||
1450 | switch (nexthop_type) { | |
1451 | case NEXTHOP_TYPE_IPV6: | |
1452 | stream_get(&nexthop, s, 16); | |
1453 | if (nh_count < multipath_num) { | |
1454 | nexthops[nh_count++] = nexthop; | |
1455 | } | |
1456 | break; | |
1457 | case NEXTHOP_TYPE_IFINDEX: | |
1458 | if (if_count < multipath_num) { | |
1459 | ifindices[if_count++] = stream_getl(s); | |
1460 | } | |
1461 | break; | |
1462 | case NEXTHOP_TYPE_BLACKHOLE: | |
1463 | rib_nexthop_blackhole_add(rib); | |
1464 | break; | |
1465 | } | |
1466 | } | |
1467 | ||
1468 | max_nh_if = (nh_count > if_count) ? nh_count : if_count; | |
1469 | for (i = 0; i < max_nh_if; i++) { | |
1470 | if ((i < nh_count) | |
1471 | && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { | |
1472 | if ((i < if_count) && ifindices[i]) | |
1473 | rib_nexthop_ipv6_ifindex_add( | |
1474 | rib, &nexthops[i], | |
1475 | ifindices[i]); | |
1476 | else | |
1477 | rib_nexthop_ipv6_add(rib, &nexthops[i]); | |
1478 | } else { | |
1479 | if ((i < if_count) && ifindices[i]) | |
1480 | rib_nexthop_ifindex_add(rib, | |
1481 | ifindices[i]); | |
1482 | } | |
1483 | } | |
718e3744 | 1484 | } |
41fc2714 | 1485 | |
ac4d0be5 | 1486 | /* Distance. */ |
1487 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
1488 | rib->distance = stream_getc(s); | |
718e3744 | 1489 | |
ac4d0be5 | 1490 | /* Metric. */ |
1491 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) | |
1492 | rib->metric = stream_getl(s); | |
718e3744 | 1493 | |
ac4d0be5 | 1494 | /* Tag */ |
1495 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
1496 | rib->tag = stream_getl(s); | |
1497 | else | |
1498 | rib->tag = 0; | |
c50ca33a | 1499 | |
ac4d0be5 | 1500 | if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) |
1501 | rib->mtu = stream_getl(s); | |
1502 | else | |
1503 | rib->mtu = 0; | |
0d9551dc | 1504 | |
ac4d0be5 | 1505 | /* VRF ID */ |
1506 | rib->vrf_id = zvrf_id(zvrf); | |
1507 | rib->table = zvrf->table_id; | |
154caaed | 1508 | |
ac4d0be5 | 1509 | ret = rib_add_multipath(AFI_IP6, safi, &p, src_pp, rib); |
1510 | /* Stats */ | |
1511 | if (ret > 0) | |
1512 | client->v6_route_add_cnt++; | |
1513 | else if (ret < 0) | |
1514 | client->v6_route_upd8_cnt++; | |
04b02fda | 1515 | |
ac4d0be5 | 1516 | return 0; |
718e3744 | 1517 | } |
1518 | ||
1519 | /* Zebra server IPv6 prefix delete function. */ | |
ac4d0be5 | 1520 | static int zread_ipv6_delete(struct zserv *client, u_short length, |
1521 | struct zebra_vrf *zvrf) | |
1522 | { | |
1523 | int i; | |
1524 | struct stream *s; | |
1525 | struct zapi_ipv6 api; | |
1526 | struct in6_addr nexthop; | |
1527 | union g_addr *pnexthop = NULL; | |
1528 | unsigned long ifindex; | |
1529 | struct prefix p; | |
1530 | struct prefix_ipv6 src_p, *src_pp; | |
1531 | ||
1532 | s = client->ibuf; | |
1533 | ifindex = 0; | |
1534 | memset(&nexthop, 0, sizeof(struct in6_addr)); | |
1535 | ||
1536 | /* Type, flags, message. */ | |
1537 | api.type = stream_getc(s); | |
1538 | api.instance = stream_getw(s); | |
1539 | api.flags = stream_getl(s); | |
1540 | api.message = stream_getc(s); | |
1541 | api.safi = stream_getw(s); | |
1542 | ||
1543 | /* IPv4 prefix. */ | |
1544 | memset(&p, 0, sizeof(struct prefix_ipv6)); | |
1545 | p.family = AF_INET6; | |
1546 | p.prefixlen = stream_getc(s); | |
1547 | stream_get(&p.u.prefix6, s, PSIZE(p.prefixlen)); | |
1548 | ||
1549 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { | |
1550 | memset(&src_p, 0, sizeof(struct prefix_ipv6)); | |
1551 | src_p.family = AF_INET6; | |
1552 | src_p.prefixlen = stream_getc(s); | |
1553 | stream_get(&src_p.prefix, s, PSIZE(src_p.prefixlen)); | |
1554 | src_pp = &src_p; | |
1555 | } else | |
1556 | src_pp = NULL; | |
1557 | ||
1558 | /* Nexthop, ifindex, distance, metric. */ | |
1559 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { | |
1560 | u_char nexthop_type; | |
1561 | ||
1562 | api.nexthop_num = stream_getc(s); | |
1563 | for (i = 0; i < api.nexthop_num; i++) { | |
1564 | nexthop_type = stream_getc(s); | |
1565 | ||
1566 | switch (nexthop_type) { | |
1567 | case NEXTHOP_TYPE_IPV6: | |
1568 | stream_get(&nexthop, s, 16); | |
1569 | pnexthop = (union g_addr *)&nexthop; | |
1570 | break; | |
1571 | case NEXTHOP_TYPE_IFINDEX: | |
1572 | ifindex = stream_getl(s); | |
1573 | break; | |
1574 | } | |
1575 | } | |
718e3744 | 1576 | } |
ac4d0be5 | 1577 | |
1578 | /* Distance. */ | |
1579 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) | |
1580 | api.distance = stream_getc(s); | |
1581 | else | |
1582 | api.distance = 0; | |
1583 | ||
1584 | /* Metric. */ | |
1585 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1586 | api.metric = stream_getl(s); | |
1587 | else | |
1588 | api.metric = 0; | |
1589 | ||
1590 | /* tag */ | |
1591 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1592 | api.tag = stream_getl(s); | |
1593 | else | |
1594 | api.tag = 0; | |
1595 | ||
1596 | if (IN6_IS_ADDR_UNSPECIFIED(&nexthop)) | |
1597 | rib_delete(AFI_IP6, api.safi, zvrf_id(zvrf), api.type, | |
1598 | api.instance, api.flags, &p, src_pp, NULL, ifindex, | |
1599 | client->rtm_table); | |
1600 | else | |
1601 | rib_delete(AFI_IP6, api.safi, zvrf_id(zvrf), api.type, | |
1602 | api.instance, api.flags, &p, src_pp, pnexthop, | |
1603 | ifindex, client->rtm_table); | |
1604 | ||
1605 | client->v6_route_del_cnt++; | |
1606 | return 0; | |
718e3744 | 1607 | } |
1608 | ||
18a6dce6 | 1609 | /* Register zebra server router-id information. Send current router-id */ |
ac4d0be5 | 1610 | static int zread_router_id_add(struct zserv *client, u_short length, |
1611 | struct zebra_vrf *zvrf) | |
18a6dce6 | 1612 | { |
ac4d0be5 | 1613 | struct prefix p; |
18a6dce6 | 1614 | |
ac4d0be5 | 1615 | /* Router-id information is needed. */ |
1616 | vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); | |
18a6dce6 | 1617 | |
ac4d0be5 | 1618 | router_id_get(&p, zvrf_id(zvrf)); |
18a6dce6 | 1619 | |
ac4d0be5 | 1620 | return zsend_router_id_update(client, &p, zvrf_id(zvrf)); |
18a6dce6 | 1621 | } |
1622 | ||
1623 | /* Unregister zebra server router-id information. */ | |
ac4d0be5 | 1624 | static int zread_router_id_delete(struct zserv *client, u_short length, |
1625 | struct zebra_vrf *zvrf) | |
18a6dce6 | 1626 | { |
ac4d0be5 | 1627 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); |
1628 | return 0; | |
18a6dce6 | 1629 | } |
1630 | ||
2ea1ab1c | 1631 | /* Tie up route-type and client->sock */ |
ac4d0be5 | 1632 | static void zread_hello(struct zserv *client) |
2ea1ab1c | 1633 | { |
ac4d0be5 | 1634 | /* type of protocol (lib/zebra.h) */ |
1635 | u_char proto; | |
1636 | u_short instance; | |
7c8ff89e | 1637 | |
ac4d0be5 | 1638 | proto = stream_getc(client->ibuf); |
1639 | instance = stream_getw(client->ibuf); | |
2ea1ab1c | 1640 | |
ac4d0be5 | 1641 | /* accept only dynamic routing protocols */ |
1642 | if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_STATIC)) { | |
1643 | zlog_notice( | |
1644 | "client %d says hello and bids fair to announce only %s routes", | |
1645 | client->sock, zebra_route_string(proto)); | |
1646 | if (instance) | |
1647 | zlog_notice("client protocol instance %d", instance); | |
2ea1ab1c | 1648 | |
ac4d0be5 | 1649 | client->proto = proto; |
1650 | client->instance = instance; | |
1651 | } | |
2ea1ab1c VT |
1652 | } |
1653 | ||
7076bb2f | 1654 | /* Unregister all information in a VRF. */ |
ac4d0be5 | 1655 | static int zread_vrf_unregister(struct zserv *client, u_short length, |
1656 | struct zebra_vrf *zvrf) | |
1657 | { | |
1658 | int i; | |
1659 | afi_t afi; | |
1660 | ||
1661 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1662 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
1663 | vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); | |
1664 | vrf_bitmap_unset(client->redist_default, zvrf_id(zvrf)); | |
1665 | vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); | |
1666 | vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); | |
1667 | ||
1668 | return 0; | |
1669 | } | |
1670 | ||
1671 | static void zread_mpls_labels(int command, struct zserv *client, u_short length, | |
1672 | vrf_id_t vrf_id) | |
1673 | { | |
1674 | struct stream *s; | |
1675 | enum lsp_types_t type; | |
1676 | struct prefix prefix; | |
1677 | enum nexthop_types_t gtype; | |
1678 | union g_addr gate; | |
1679 | ifindex_t ifindex; | |
1680 | mpls_label_t in_label, out_label; | |
1681 | u_int8_t distance; | |
1682 | struct zebra_vrf *zvrf; | |
1683 | ||
1684 | zvrf = vrf_info_lookup(vrf_id); | |
1685 | if (!zvrf) | |
1686 | return; | |
1687 | ||
1688 | /* Get input stream. */ | |
1689 | s = client->ibuf; | |
1690 | ||
1691 | /* Get data. */ | |
1692 | type = stream_getc(s); | |
1693 | prefix.family = stream_getl(s); | |
1694 | switch (prefix.family) { | |
1695 | case AF_INET: | |
1696 | prefix.u.prefix4.s_addr = stream_get_ipv4(s); | |
1697 | prefix.prefixlen = stream_getc(s); | |
1698 | gate.ipv4.s_addr = stream_get_ipv4(s); | |
1699 | break; | |
1700 | case AF_INET6: | |
1701 | stream_get(&prefix.u.prefix6, s, 16); | |
1702 | prefix.prefixlen = stream_getc(s); | |
1703 | stream_get(&gate.ipv6, s, 16); | |
1704 | break; | |
1705 | default: | |
1706 | return; | |
1707 | } | |
1708 | ifindex = stream_getl(s); | |
1709 | distance = stream_getc(s); | |
1710 | in_label = stream_getl(s); | |
1711 | out_label = stream_getl(s); | |
1712 | ||
1713 | switch (prefix.family) { | |
1714 | case AF_INET: | |
1715 | if (ifindex) | |
1716 | gtype = NEXTHOP_TYPE_IPV4_IFINDEX; | |
1717 | else | |
1718 | gtype = NEXTHOP_TYPE_IPV4; | |
1719 | break; | |
1720 | case AF_INET6: | |
1721 | if (ifindex) | |
1722 | gtype = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1723 | else | |
1724 | gtype = NEXTHOP_TYPE_IPV6; | |
1725 | break; | |
1726 | default: | |
1727 | return; | |
1728 | } | |
1729 | ||
1730 | if (!mpls_enabled) | |
1731 | return; | |
1732 | ||
1733 | if (command == ZEBRA_MPLS_LABELS_ADD) { | |
1734 | mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, | |
1735 | NULL, ifindex); | |
1736 | mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1737 | distance, out_label); | |
1738 | } else if (command == ZEBRA_MPLS_LABELS_DELETE) { | |
1739 | mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, NULL, | |
1740 | ifindex); | |
1741 | mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, | |
1742 | distance, out_label); | |
1743 | } | |
ce549947 | 1744 | } |
fea12efb | 1745 | /* Send response to a label manager connect request to client */ |
ac4d0be5 | 1746 | static int zsend_label_manager_connect_response(struct zserv *client, |
1747 | vrf_id_t vrf_id, u_short result) | |
fea12efb | 1748 | { |
ac4d0be5 | 1749 | struct stream *s; |
fea12efb | 1750 | |
ac4d0be5 | 1751 | s = client->obuf; |
1752 | stream_reset(s); | |
fea12efb | 1753 | |
ac4d0be5 | 1754 | zserv_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); |
fea12efb | 1755 | |
ac4d0be5 | 1756 | /* result */ |
1757 | stream_putc(s, result); | |
fea12efb | 1758 | |
ac4d0be5 | 1759 | /* Write packet size. */ |
1760 | stream_putw_at(s, 0, stream_get_endp(s)); | |
fea12efb | 1761 | |
ac4d0be5 | 1762 | return writen(client->sock, s->data, stream_get_endp(s)); |
fea12efb | 1763 | } |
1764 | ||
ac4d0be5 | 1765 | static void zread_label_manager_connect(struct zserv *client, vrf_id_t vrf_id) |
fea12efb | 1766 | { |
ac4d0be5 | 1767 | struct stream *s; |
1768 | /* type of protocol (lib/zebra.h) */ | |
1769 | u_char proto; | |
1770 | u_short instance; | |
fea12efb | 1771 | |
ac4d0be5 | 1772 | /* Get input stream. */ |
1773 | s = client->ibuf; | |
fea12efb | 1774 | |
ac4d0be5 | 1775 | /* Get data. */ |
1776 | proto = stream_getc(s); | |
1777 | instance = stream_getw(s); | |
fea12efb | 1778 | |
ac4d0be5 | 1779 | /* accept only dynamic routing protocols */ |
1780 | if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { | |
1781 | zlog_err("client %d has wrong protocol %s", client->sock, | |
1782 | zebra_route_string(proto)); | |
1783 | zsend_label_manager_connect_response(client, vrf_id, 1); | |
1784 | return; | |
1785 | } | |
1786 | zlog_notice("client %d with instance %u connected as %s", client->sock, | |
1787 | instance, zebra_route_string(proto)); | |
1788 | client->proto = proto; | |
1789 | client->instance = instance; | |
1790 | ||
1791 | /* | |
1792 | Release previous labels of same protocol and instance. | |
1793 | This is done in case it restarted from an unexpected shutdown. | |
1794 | */ | |
1795 | release_daemon_chunks(proto, instance); | |
1796 | ||
1797 | zlog_debug( | |
1798 | " Label Manager client connected: sock %d, proto %s, instance %u", | |
1799 | client->sock, zebra_route_string(proto), instance); | |
1800 | /* send response back */ | |
1801 | zsend_label_manager_connect_response(client, vrf_id, 0); | |
fea12efb | 1802 | } |
1803 | /* Send response to a get label chunk request to client */ | |
ac4d0be5 | 1804 | static int zsend_assign_label_chunk_response(struct zserv *client, |
1805 | vrf_id_t vrf_id, | |
1806 | struct label_manager_chunk *lmc) | |
1807 | { | |
1808 | struct stream *s; | |
6da80de9 | 1809 | |
ac4d0be5 | 1810 | s = client->obuf; |
1811 | stream_reset(s); | |
1812 | ||
1813 | zserv_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); | |
1814 | ||
1815 | if (lmc) { | |
1816 | /* keep */ | |
1817 | stream_putc(s, lmc->keep); | |
1818 | /* start and end labels */ | |
1819 | stream_putl(s, lmc->start); | |
1820 | stream_putl(s, lmc->end); | |
6da80de9 | 1821 | } |
1822 | ||
ac4d0be5 | 1823 | /* Write packet size. */ |
1824 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1825 | ||
1826 | return writen(client->sock, s->data, stream_get_endp(s)); | |
1827 | } | |
1828 | ||
1829 | static void zread_get_label_chunk(struct zserv *client, vrf_id_t vrf_id) | |
1830 | { | |
1831 | struct stream *s; | |
1832 | u_char keep; | |
1833 | uint32_t size; | |
1834 | struct label_manager_chunk *lmc; | |
1835 | ||
1836 | /* Get input stream. */ | |
1837 | s = client->ibuf; | |
1838 | ||
1839 | /* Get data. */ | |
1840 | keep = stream_getc(s); | |
1841 | size = stream_getl(s); | |
1842 | ||
1843 | lmc = assign_label_chunk(client->proto, client->instance, keep, size); | |
1844 | if (!lmc) | |
1845 | zlog_err("%s: Unable to assign Label Chunk of size %u", | |
1846 | __func__, size); | |
1847 | else | |
1848 | zlog_debug("Assigned Label Chunk %u - %u to %u", lmc->start, | |
1849 | lmc->end, keep); | |
1850 | /* send response back */ | |
1851 | zsend_assign_label_chunk_response(client, vrf_id, lmc); | |
1852 | } | |
1853 | ||
1854 | static void zread_release_label_chunk(struct zserv *client) | |
1855 | { | |
1856 | struct stream *s; | |
1857 | uint32_t start, end; | |
1858 | ||
1859 | /* Get input stream. */ | |
1860 | s = client->ibuf; | |
1861 | ||
1862 | /* Get data. */ | |
1863 | start = stream_getl(s); | |
1864 | end = stream_getl(s); | |
1865 | ||
1866 | release_label_chunk(client->proto, client->instance, start, end); | |
1867 | } | |
1868 | static void zread_label_manager_request(int cmd, struct zserv *client, | |
1869 | vrf_id_t vrf_id) | |
1870 | { | |
1871 | /* to avoid sending other messages like ZERBA_INTERFACE_UP */ | |
1872 | if (cmd == ZEBRA_LABEL_MANAGER_CONNECT) | |
1873 | client->is_synchronous = 1; | |
1874 | ||
1875 | /* external label manager */ | |
1876 | if (lm_is_external) | |
1877 | zread_relay_label_manager_request(cmd, client, vrf_id); | |
1878 | /* this is a label manager */ | |
1879 | else { | |
1880 | if (cmd == ZEBRA_LABEL_MANAGER_CONNECT) | |
1881 | zread_label_manager_connect(client, vrf_id); | |
1882 | else { | |
1883 | /* Sanity: don't allow 'unidentified' requests */ | |
1884 | if (!client->proto) { | |
1885 | zlog_err( | |
1886 | "Got label request from an unidentified client"); | |
1887 | return; | |
1888 | } | |
1889 | if (cmd == ZEBRA_GET_LABEL_CHUNK) | |
1890 | zread_get_label_chunk(client, vrf_id); | |
1891 | else if (cmd == ZEBRA_RELEASE_LABEL_CHUNK) | |
1892 | zread_release_label_chunk(client); | |
1893 | } | |
6da80de9 | 1894 | } |
ac4d0be5 | 1895 | } |
6da80de9 | 1896 | |
ac4d0be5 | 1897 | static int zread_pseudowire(int command, struct zserv *client, u_short length, |
1898 | vrf_id_t vrf_id) | |
1899 | { | |
1900 | struct stream *s; | |
1901 | struct zebra_vrf *zvrf; | |
1902 | char ifname[IF_NAMESIZE]; | |
1903 | ifindex_t ifindex; | |
1904 | int type; | |
1905 | int af; | |
1906 | union g_addr nexthop; | |
1907 | uint32_t local_label; | |
1908 | uint32_t remote_label; | |
1909 | uint8_t flags; | |
1910 | union pw_protocol_fields data; | |
1911 | uint8_t protocol; | |
1912 | struct zebra_pw *pw; | |
1913 | ||
1914 | zvrf = vrf_info_lookup(vrf_id); | |
1915 | if (!zvrf) | |
1916 | return -1; | |
1917 | ||
1918 | /* Get input stream. */ | |
1919 | s = client->ibuf; | |
1920 | ||
1921 | /* Get data. */ | |
1922 | stream_get(ifname, s, IF_NAMESIZE); | |
1923 | ifindex = stream_getl(s); | |
1924 | type = stream_getl(s); | |
1925 | af = stream_getl(s); | |
1926 | switch (af) { | |
1927 | case AF_INET: | |
1928 | nexthop.ipv4.s_addr = stream_get_ipv4(s); | |
1929 | break; | |
1930 | case AF_INET6: | |
1931 | stream_get(&nexthop.ipv6, s, 16); | |
1932 | break; | |
1933 | default: | |
1934 | return -1; | |
1935 | } | |
1936 | local_label = stream_getl(s); | |
1937 | remote_label = stream_getl(s); | |
1938 | flags = stream_getc(s); | |
1939 | stream_get(&data, s, sizeof(data)); | |
1940 | protocol = client->proto; | |
1941 | ||
1942 | pw = zebra_pw_find(zvrf, ifname); | |
1943 | switch (command) { | |
1944 | case ZEBRA_PW_ADD: | |
1945 | if (pw) { | |
1946 | zlog_warn("%s: pseudowire %s already exists [%s]", | |
1947 | __func__, ifname, | |
1948 | zserv_command_string(command)); | |
1949 | return -1; | |
1950 | } | |
1951 | ||
1952 | zebra_pw_add(zvrf, ifname, protocol, client); | |
1953 | break; | |
1954 | case ZEBRA_PW_DELETE: | |
1955 | if (!pw) { | |
1956 | zlog_warn("%s: pseudowire %s not found [%s]", __func__, | |
1957 | ifname, zserv_command_string(command)); | |
1958 | return -1; | |
1959 | } | |
1960 | ||
1961 | zebra_pw_del(zvrf, pw); | |
1962 | break; | |
6da80de9 | 1963 | case ZEBRA_PW_SET: |
6da80de9 | 1964 | case ZEBRA_PW_UNSET: |
ac4d0be5 | 1965 | if (!pw) { |
1966 | zlog_warn("%s: pseudowire %s not found [%s]", __func__, | |
1967 | ifname, zserv_command_string(command)); | |
1968 | return -1; | |
1969 | } | |
1970 | ||
1971 | switch (command) { | |
1972 | case ZEBRA_PW_SET: | |
1973 | pw->enabled = 1; | |
1974 | break; | |
1975 | case ZEBRA_PW_UNSET: | |
1976 | pw->enabled = 0; | |
1977 | break; | |
1978 | } | |
1979 | ||
1980 | zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, | |
1981 | remote_label, flags, &data); | |
1982 | break; | |
6da80de9 | 1983 | } |
1984 | ||
ac4d0be5 | 1985 | return 0; |
6da80de9 | 1986 | } |
1987 | ||
4b33b75a | 1988 | /* Cleanup registered nexthops (across VRFs) upon client disconnect. */ |
ac4d0be5 | 1989 | static void zebra_client_close_cleanup_rnh(struct zserv *client) |
1990 | { | |
1991 | struct vrf *vrf; | |
1992 | struct zebra_vrf *zvrf; | |
1993 | ||
1994 | RB_FOREACH(vrf, vrf_id_head, &vrfs_by_id) | |
1995 | { | |
1996 | if ((zvrf = vrf->info) != NULL) { | |
1997 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, | |
1998 | RNH_NEXTHOP_TYPE); | |
1999 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, | |
2000 | client, RNH_NEXTHOP_TYPE); | |
2001 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, | |
2002 | RNH_IMPORT_CHECK_TYPE); | |
2003 | zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, | |
2004 | client, RNH_IMPORT_CHECK_TYPE); | |
2005 | if (client->proto == ZEBRA_ROUTE_LDP) { | |
2006 | hash_iterate(zvrf->lsp_table, | |
2007 | mpls_ldp_lsp_uninstall_all, | |
2008 | zvrf->lsp_table); | |
2009 | mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP); | |
2010 | mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP6); | |
2011 | } | |
2012 | } | |
2013 | } | |
4b33b75a | 2014 | } |
2015 | ||
8b2e7cac DS |
2016 | /* free zebra client information. */ |
2017 | static void zebra_client_free(struct zserv *client) | |
ac4d0be5 | 2018 | { |
2019 | /* Send client de-registration to BFD */ | |
2020 | zebra_ptm_bfd_client_deregister(client->proto); | |
2021 | ||
2022 | /* Cleanup any registered nexthops - across all VRFs. */ | |
2023 | zebra_client_close_cleanup_rnh(client); | |
2024 | ||
2025 | /* Release Label Manager chunks */ | |
2026 | release_daemon_chunks(client->proto, client->instance); | |
2027 | ||
2028 | /* Remove pseudowires associated with this client */ | |
2029 | zebra_pw_client_close(client); | |
2030 | ||
2031 | /* Close file descriptor. */ | |
2032 | if (client->sock) { | |
2033 | unsigned long nroutes; | |
2034 | ||
2035 | close(client->sock); | |
2036 | nroutes = rib_score_proto(client->proto, client->instance); | |
2037 | zlog_notice( | |
2038 | "client %d disconnected. %lu %s routes removed from the rib", | |
2039 | client->sock, nroutes, | |
2040 | zebra_route_string(client->proto)); | |
2041 | client->sock = -1; | |
2042 | } | |
2043 | ||
2044 | /* Free stream buffers. */ | |
2045 | if (client->ibuf) | |
2046 | stream_free(client->ibuf); | |
2047 | if (client->obuf) | |
2048 | stream_free(client->obuf); | |
2049 | if (client->wb) | |
2050 | buffer_free(client->wb); | |
2051 | ||
2052 | /* Release threads. */ | |
2053 | if (client->t_read) | |
2054 | thread_cancel(client->t_read); | |
2055 | if (client->t_write) | |
2056 | thread_cancel(client->t_write); | |
2057 | if (client->t_suicide) | |
2058 | thread_cancel(client->t_suicide); | |
2059 | ||
2060 | /* Free bitmaps. */ | |
2061 | for (afi_t afi = AFI_IP; afi < AFI_MAX; afi++) | |
2062 | for (int i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2063 | vrf_bitmap_free(client->redist[afi][i]); | |
2064 | ||
2065 | vrf_bitmap_free(client->redist_default); | |
2066 | vrf_bitmap_free(client->ifinfo); | |
2067 | vrf_bitmap_free(client->ridinfo); | |
2068 | ||
ac4d0be5 | 2069 | XFREE(MTYPE_TMP, client); |
718e3744 | 2070 | } |
2071 | ||
8b2e7cac DS |
2072 | static void zebra_client_close(struct zserv *client) |
2073 | { | |
2074 | listnode_delete(zebrad.client_list, client); | |
2075 | zebra_client_free(client); | |
2076 | } | |
2077 | ||
718e3744 | 2078 | /* Make new client. */ |
ac4d0be5 | 2079 | static void zebra_client_create(int sock) |
718e3744 | 2080 | { |
ac4d0be5 | 2081 | struct zserv *client; |
2082 | int i; | |
2083 | afi_t afi; | |
2084 | ||
2085 | client = XCALLOC(MTYPE_TMP, sizeof(struct zserv)); | |
718e3744 | 2086 | |
ac4d0be5 | 2087 | /* Make client input/output buffer. */ |
2088 | client->sock = sock; | |
2089 | client->ibuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2090 | client->obuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2091 | client->wb = buffer_new(0); | |
718e3744 | 2092 | |
ac4d0be5 | 2093 | /* Set table number. */ |
2094 | client->rtm_table = zebrad.rtm_table_default; | |
718e3744 | 2095 | |
ac4d0be5 | 2096 | client->connect_time = monotime(NULL); |
2097 | /* Initialize flags */ | |
2098 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2099 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2100 | client->redist[afi][i] = vrf_bitmap_init(); | |
2101 | client->redist_default = vrf_bitmap_init(); | |
2102 | client->ifinfo = vrf_bitmap_init(); | |
2103 | client->ridinfo = vrf_bitmap_init(); | |
718e3744 | 2104 | |
ac4d0be5 | 2105 | /* by default, it's not a synchronous client */ |
2106 | client->is_synchronous = 0; | |
04b02fda | 2107 | |
ac4d0be5 | 2108 | /* Add this client to linked list. */ |
2109 | listnode_add(zebrad.client_list, client); | |
fea12efb | 2110 | |
ac4d0be5 | 2111 | /* Make new read thread. */ |
2112 | zebra_event(ZEBRA_READ, sock, client); | |
12f6fb97 | 2113 | |
ac4d0be5 | 2114 | zebra_vrf_update_all(client); |
718e3744 | 2115 | } |
2116 | ||
2117 | /* Handler of zebra service request. */ | |
ac4d0be5 | 2118 | static int zebra_client_read(struct thread *thread) |
2119 | { | |
2120 | int sock; | |
2121 | struct zserv *client; | |
2122 | size_t already; | |
2123 | uint16_t length, command; | |
2124 | uint8_t marker, version; | |
2125 | vrf_id_t vrf_id; | |
2126 | struct zebra_vrf *zvrf; | |
2127 | ||
2128 | /* Get thread data. Reset reading thread because I'm running. */ | |
2129 | sock = THREAD_FD(thread); | |
2130 | client = THREAD_ARG(thread); | |
2131 | client->t_read = NULL; | |
2132 | ||
2133 | if (client->t_suicide) { | |
2134 | zebra_client_close(client); | |
2135 | return -1; | |
719e9741 | 2136 | } |
ac4d0be5 | 2137 | |
2138 | /* Read length and command (if we don't have it already). */ | |
2139 | if ((already = stream_get_endp(client->ibuf)) < ZEBRA_HEADER_SIZE) { | |
2140 | ssize_t nbyte; | |
2141 | if (((nbyte = stream_read_try(client->ibuf, sock, | |
2142 | ZEBRA_HEADER_SIZE - already)) | |
2143 | == 0) | |
2144 | || (nbyte == -1)) { | |
2145 | if (IS_ZEBRA_DEBUG_EVENT) | |
2146 | zlog_debug("connection closed socket [%d]", | |
2147 | sock); | |
2148 | zebra_client_close(client); | |
2149 | return -1; | |
2150 | } | |
2151 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
2152 | /* Try again later. */ | |
2153 | zebra_event(ZEBRA_READ, sock, client); | |
2154 | return 0; | |
2155 | } | |
2156 | already = ZEBRA_HEADER_SIZE; | |
719e9741 | 2157 | } |
ac4d0be5 | 2158 | |
2159 | /* Reset to read from the beginning of the incoming packet. */ | |
2160 | stream_set_getp(client->ibuf, 0); | |
2161 | ||
2162 | /* Fetch header values */ | |
2163 | length = stream_getw(client->ibuf); | |
2164 | marker = stream_getc(client->ibuf); | |
2165 | version = stream_getc(client->ibuf); | |
2166 | vrf_id = stream_getw(client->ibuf); | |
2167 | command = stream_getw(client->ibuf); | |
2168 | ||
2169 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
2170 | zlog_err( | |
2171 | "%s: socket %d version mismatch, marker %d, version %d", | |
2172 | __func__, sock, marker, version); | |
2173 | zebra_client_close(client); | |
2174 | return -1; | |
2175 | } | |
2176 | if (length < ZEBRA_HEADER_SIZE) { | |
2177 | zlog_warn( | |
2178 | "%s: socket %d message length %u is less than header size %d", | |
2179 | __func__, sock, length, ZEBRA_HEADER_SIZE); | |
2180 | zebra_client_close(client); | |
2181 | return -1; | |
718e3744 | 2182 | } |
ac4d0be5 | 2183 | if (length > STREAM_SIZE(client->ibuf)) { |
2184 | zlog_warn( | |
2185 | "%s: socket %d message length %u exceeds buffer size %lu", | |
2186 | __func__, sock, length, | |
2187 | (u_long)STREAM_SIZE(client->ibuf)); | |
2188 | zebra_client_close(client); | |
2189 | return -1; | |
719e9741 | 2190 | } |
ac4d0be5 | 2191 | |
2192 | /* Read rest of data. */ | |
2193 | if (already < length) { | |
2194 | ssize_t nbyte; | |
2195 | if (((nbyte = stream_read_try(client->ibuf, sock, | |
2196 | length - already)) | |
2197 | == 0) | |
2198 | || (nbyte == -1)) { | |
2199 | if (IS_ZEBRA_DEBUG_EVENT) | |
2200 | zlog_debug( | |
2201 | "connection closed [%d] when reading zebra data", | |
2202 | sock); | |
2203 | zebra_client_close(client); | |
2204 | return -1; | |
2205 | } | |
2206 | if (nbyte != (ssize_t)(length - already)) { | |
2207 | /* Try again later. */ | |
2208 | zebra_event(ZEBRA_READ, sock, client); | |
2209 | return 0; | |
2210 | } | |
2211 | } | |
2212 | ||
2213 | length -= ZEBRA_HEADER_SIZE; | |
2214 | ||
2215 | /* Debug packet information. */ | |
2216 | if (IS_ZEBRA_DEBUG_EVENT) | |
2217 | zlog_debug("zebra message comes from socket [%d]", sock); | |
2218 | ||
2219 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2220 | zlog_debug("zebra message received [%s] %d in VRF %u", | |
2221 | zserv_command_string(command), length, vrf_id); | |
2222 | ||
2223 | client->last_read_time = monotime(NULL); | |
2224 | client->last_read_cmd = command; | |
2225 | ||
2226 | zvrf = zebra_vrf_lookup_by_id(vrf_id); | |
2227 | if (!zvrf) { | |
2228 | if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV) | |
2229 | zlog_debug("zebra received unknown VRF[%u]", vrf_id); | |
2230 | goto zclient_read_out; | |
2231 | } | |
2232 | ||
2233 | switch (command) { | |
2234 | case ZEBRA_ROUTER_ID_ADD: | |
2235 | zread_router_id_add(client, length, zvrf); | |
2236 | break; | |
2237 | case ZEBRA_ROUTER_ID_DELETE: | |
2238 | zread_router_id_delete(client, length, zvrf); | |
2239 | break; | |
2240 | case ZEBRA_INTERFACE_ADD: | |
2241 | zread_interface_add(client, length, zvrf); | |
2242 | break; | |
2243 | case ZEBRA_INTERFACE_DELETE: | |
2244 | zread_interface_delete(client, length, zvrf); | |
2245 | break; | |
2246 | case ZEBRA_IPV4_ROUTE_ADD: | |
2247 | zread_ipv4_add(client, length, zvrf); | |
2248 | break; | |
2249 | case ZEBRA_IPV4_ROUTE_DELETE: | |
2250 | zread_ipv4_delete(client, length, zvrf); | |
2251 | break; | |
2252 | case ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD: | |
2253 | zread_ipv4_route_ipv6_nexthop_add(client, length, zvrf); | |
2254 | break; | |
2255 | case ZEBRA_IPV4_NEXTHOP_ADD: | |
2256 | zread_ipv4_add(client, length, | |
2257 | zvrf); /* LB: r1.0 merge - id was 1 */ | |
2258 | break; | |
2259 | case ZEBRA_IPV4_NEXTHOP_DELETE: | |
2260 | zread_ipv4_delete(client, length, | |
2261 | zvrf); /* LB: r1.0 merge - id was 1 */ | |
2262 | break; | |
2263 | case ZEBRA_IPV6_ROUTE_ADD: | |
2264 | zread_ipv6_add(client, length, zvrf); | |
2265 | break; | |
2266 | case ZEBRA_IPV6_ROUTE_DELETE: | |
2267 | zread_ipv6_delete(client, length, zvrf); | |
2268 | break; | |
2269 | case ZEBRA_REDISTRIBUTE_ADD: | |
2270 | zebra_redistribute_add(command, client, length, zvrf); | |
2271 | break; | |
2272 | case ZEBRA_REDISTRIBUTE_DELETE: | |
2273 | zebra_redistribute_delete(command, client, length, zvrf); | |
2274 | break; | |
2275 | case ZEBRA_REDISTRIBUTE_DEFAULT_ADD: | |
2276 | zebra_redistribute_default_add(command, client, length, zvrf); | |
2277 | break; | |
2278 | case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE: | |
2279 | zebra_redistribute_default_delete(command, client, length, | |
2280 | zvrf); | |
2281 | break; | |
2282 | case ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB: | |
2283 | zread_ipv4_nexthop_lookup_mrib(client, length, zvrf); | |
2284 | break; | |
2285 | case ZEBRA_HELLO: | |
2286 | zread_hello(client); | |
2287 | break; | |
2288 | case ZEBRA_NEXTHOP_REGISTER: | |
2289 | zserv_rnh_register(client, sock, length, RNH_NEXTHOP_TYPE, | |
2290 | zvrf); | |
2291 | break; | |
2292 | case ZEBRA_NEXTHOP_UNREGISTER: | |
2293 | zserv_rnh_unregister(client, sock, length, RNH_NEXTHOP_TYPE, | |
2294 | zvrf); | |
2295 | break; | |
2296 | case ZEBRA_IMPORT_ROUTE_REGISTER: | |
2297 | zserv_rnh_register(client, sock, length, RNH_IMPORT_CHECK_TYPE, | |
2298 | zvrf); | |
2299 | break; | |
2300 | case ZEBRA_IMPORT_ROUTE_UNREGISTER: | |
2301 | zserv_rnh_unregister(client, sock, length, | |
2302 | RNH_IMPORT_CHECK_TYPE, zvrf); | |
2303 | break; | |
2304 | case ZEBRA_BFD_DEST_UPDATE: | |
2305 | case ZEBRA_BFD_DEST_REGISTER: | |
2306 | zebra_ptm_bfd_dst_register(client, sock, length, command, zvrf); | |
2307 | break; | |
2308 | case ZEBRA_BFD_DEST_DEREGISTER: | |
2309 | zebra_ptm_bfd_dst_deregister(client, sock, length, zvrf); | |
2310 | break; | |
2311 | case ZEBRA_VRF_UNREGISTER: | |
2312 | zread_vrf_unregister(client, length, zvrf); | |
2313 | break; | |
2314 | case ZEBRA_BFD_CLIENT_REGISTER: | |
2315 | zebra_ptm_bfd_client_register(client, sock, length); | |
2316 | break; | |
2317 | case ZEBRA_INTERFACE_ENABLE_RADV: | |
2318 | zebra_interface_radv_set(client, sock, length, zvrf, 1); | |
2319 | break; | |
2320 | case ZEBRA_INTERFACE_DISABLE_RADV: | |
2321 | zebra_interface_radv_set(client, sock, length, zvrf, 0); | |
2322 | break; | |
2323 | case ZEBRA_MPLS_LABELS_ADD: | |
2324 | case ZEBRA_MPLS_LABELS_DELETE: | |
2325 | zread_mpls_labels(command, client, length, vrf_id); | |
2326 | break; | |
2327 | case ZEBRA_IPMR_ROUTE_STATS: | |
2328 | zebra_ipmr_route_stats(client, sock, length, zvrf); | |
2329 | break; | |
2330 | case ZEBRA_LABEL_MANAGER_CONNECT: | |
2331 | case ZEBRA_GET_LABEL_CHUNK: | |
2332 | case ZEBRA_RELEASE_LABEL_CHUNK: | |
2333 | zread_label_manager_request(command, client, vrf_id); | |
2334 | break; | |
2335 | case ZEBRA_PW_ADD: | |
2336 | case ZEBRA_PW_DELETE: | |
2337 | case ZEBRA_PW_SET: | |
2338 | case ZEBRA_PW_UNSET: | |
2339 | zread_pseudowire(command, client, length, vrf_id); | |
2340 | break; | |
2341 | default: | |
2342 | zlog_info("Zebra received unknown command %d", command); | |
2343 | break; | |
2344 | } | |
2345 | ||
2346 | if (client->t_suicide) { | |
2347 | /* No need to wait for thread callback, just kill immediately. | |
2348 | */ | |
2349 | zebra_client_close(client); | |
2350 | return -1; | |
2351 | } | |
2352 | ||
2353 | zclient_read_out: | |
2354 | stream_reset(client->ibuf); | |
2355 | zebra_event(ZEBRA_READ, sock, client); | |
2356 | return 0; | |
718e3744 | 2357 | } |
2358 | ||
718e3744 | 2359 | |
2360 | /* Accept code of zebra server socket. */ | |
ac4d0be5 | 2361 | static int zebra_accept(struct thread *thread) |
718e3744 | 2362 | { |
ac4d0be5 | 2363 | int accept_sock; |
2364 | int client_sock; | |
2365 | struct sockaddr_in client; | |
2366 | socklen_t len; | |
2367 | ||
2368 | accept_sock = THREAD_FD(thread); | |
718e3744 | 2369 | |
ac4d0be5 | 2370 | /* Reregister myself. */ |
2371 | zebra_event(ZEBRA_SERV, accept_sock, NULL); | |
718e3744 | 2372 | |
ac4d0be5 | 2373 | len = sizeof(struct sockaddr_in); |
2374 | client_sock = accept(accept_sock, (struct sockaddr *)&client, &len); | |
719e9741 | 2375 | |
ac4d0be5 | 2376 | if (client_sock < 0) { |
2377 | zlog_warn("Can't accept zebra socket: %s", | |
2378 | safe_strerror(errno)); | |
2379 | return -1; | |
2380 | } | |
718e3744 | 2381 | |
ac4d0be5 | 2382 | /* Make client socket non-blocking. */ |
2383 | set_nonblocking(client_sock); | |
718e3744 | 2384 | |
ac4d0be5 | 2385 | /* Create new zebra client. */ |
2386 | zebra_client_create(client_sock); | |
718e3744 | 2387 | |
ac4d0be5 | 2388 | return 0; |
718e3744 | 2389 | } |
2390 | ||
b9df2d25 | 2391 | #ifdef HAVE_TCP_ZEBRA |
718e3744 | 2392 | /* Make zebra's server socket. */ |
ac4d0be5 | 2393 | static void zebra_serv() |
2394 | { | |
2395 | int ret; | |
2396 | int accept_sock; | |
2397 | struct sockaddr_in addr; | |
2398 | ||
2399 | accept_sock = socket(AF_INET, SOCK_STREAM, 0); | |
2400 | ||
2401 | if (accept_sock < 0) { | |
2402 | zlog_warn("Can't create zserv stream socket: %s", | |
2403 | safe_strerror(errno)); | |
2404 | zlog_warn( | |
2405 | "zebra can't provice full functionality due to above error"); | |
2406 | return; | |
2407 | } | |
2408 | ||
2409 | memset(&addr, 0, sizeof(struct sockaddr_in)); | |
2410 | addr.sin_family = AF_INET; | |
2411 | addr.sin_port = htons(ZEBRA_PORT); | |
6f0e3f6e | 2412 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
ac4d0be5 | 2413 | addr.sin_len = sizeof(struct sockaddr_in); |
6f0e3f6e | 2414 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
ac4d0be5 | 2415 | addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
2416 | ||
2417 | sockopt_reuseaddr(accept_sock); | |
2418 | sockopt_reuseport(accept_sock); | |
2419 | ||
2420 | if (zserv_privs.change(ZPRIVS_RAISE)) | |
2421 | zlog_err("Can't raise privileges"); | |
2422 | ||
2423 | ret = bind(accept_sock, (struct sockaddr *)&addr, | |
2424 | sizeof(struct sockaddr_in)); | |
2425 | if (ret < 0) { | |
2426 | zlog_warn("Can't bind to stream socket: %s", | |
2427 | safe_strerror(errno)); | |
2428 | zlog_warn( | |
2429 | "zebra can't provice full functionality due to above error"); | |
2430 | close(accept_sock); /* Avoid sd leak. */ | |
2431 | return; | |
2432 | } | |
2433 | ||
2434 | if (zserv_privs.change(ZPRIVS_LOWER)) | |
2435 | zlog_err("Can't lower privileges"); | |
2436 | ||
2437 | ret = listen(accept_sock, 1); | |
2438 | if (ret < 0) { | |
2439 | zlog_warn("Can't listen to stream socket: %s", | |
2440 | safe_strerror(errno)); | |
2441 | zlog_warn( | |
2442 | "zebra can't provice full functionality due to above error"); | |
2443 | close(accept_sock); /* Avoid sd leak. */ | |
2444 | return; | |
2445 | } | |
2446 | ||
2447 | zebra_event(ZEBRA_SERV, accept_sock, NULL); | |
718e3744 | 2448 | } |
fbedba64 | 2449 | #else /* HAVE_TCP_ZEBRA */ |
718e3744 | 2450 | |
2451 | /* For sockaddr_un. */ | |
2452 | #include <sys/un.h> | |
2453 | ||
2454 | /* zebra server UNIX domain socket. */ | |
ac4d0be5 | 2455 | static void zebra_serv_un(const char *path) |
2456 | { | |
2457 | int ret; | |
2458 | int sock, len; | |
2459 | struct sockaddr_un serv; | |
2460 | mode_t old_mask; | |
2461 | ||
2462 | /* First of all, unlink existing socket */ | |
2463 | unlink(path); | |
2464 | ||
2465 | /* Set umask */ | |
2466 | old_mask = umask(0077); | |
2467 | ||
2468 | /* Make UNIX domain socket. */ | |
2469 | sock = socket(AF_UNIX, SOCK_STREAM, 0); | |
2470 | if (sock < 0) { | |
2471 | zlog_warn("Can't create zserv unix socket: %s", | |
2472 | safe_strerror(errno)); | |
2473 | zlog_warn( | |
2474 | "zebra can't provide full functionality due to above error"); | |
2475 | return; | |
2476 | } | |
2477 | ||
2478 | /* Make server socket. */ | |
2479 | memset(&serv, 0, sizeof(struct sockaddr_un)); | |
2480 | serv.sun_family = AF_UNIX; | |
2481 | strncpy(serv.sun_path, path, strlen(path)); | |
6f0e3f6e | 2482 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
ac4d0be5 | 2483 | len = serv.sun_len = SUN_LEN(&serv); |
718e3744 | 2484 | #else |
ac4d0be5 | 2485 | len = sizeof(serv.sun_family) + strlen(serv.sun_path); |
6f0e3f6e | 2486 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2487 | |
ac4d0be5 | 2488 | ret = bind(sock, (struct sockaddr *)&serv, len); |
2489 | if (ret < 0) { | |
2490 | zlog_warn("Can't bind to unix socket %s: %s", path, | |
2491 | safe_strerror(errno)); | |
2492 | zlog_warn( | |
2493 | "zebra can't provide full functionality due to above error"); | |
2494 | close(sock); | |
2495 | return; | |
2496 | } | |
2497 | ||
2498 | ret = listen(sock, 5); | |
2499 | if (ret < 0) { | |
2500 | zlog_warn("Can't listen to unix socket %s: %s", path, | |
2501 | safe_strerror(errno)); | |
2502 | zlog_warn( | |
2503 | "zebra can't provide full functionality due to above error"); | |
2504 | close(sock); | |
2505 | return; | |
2506 | } | |
2507 | ||
2508 | umask(old_mask); | |
2509 | ||
2510 | zebra_event(ZEBRA_SERV, sock, NULL); | |
718e3744 | 2511 | } |
fbedba64 | 2512 | #endif /* HAVE_TCP_ZEBRA */ |
6b0655a2 | 2513 | |
718e3744 | 2514 | |
ac4d0be5 | 2515 | static void zebra_event(enum event event, int sock, struct zserv *client) |
718e3744 | 2516 | { |
ac4d0be5 | 2517 | switch (event) { |
2518 | case ZEBRA_SERV: | |
2519 | thread_add_read(zebrad.master, zebra_accept, client, sock); | |
2520 | break; | |
2521 | case ZEBRA_READ: | |
2522 | client->t_read = thread_add_read( | |
2523 | zebrad.master, zebra_client_read, client, sock); | |
2524 | break; | |
2525 | case ZEBRA_WRITE: | |
2526 | /**/ | |
2527 | break; | |
2528 | } | |
718e3744 | 2529 | } |
6b0655a2 | 2530 | |
04b02fda | 2531 | #define ZEBRA_TIME_BUF 32 |
ac4d0be5 | 2532 | static char *zserv_time_buf(time_t *time1, char *buf, int buflen) |
04b02fda | 2533 | { |
ac4d0be5 | 2534 | struct tm *tm; |
2535 | time_t now; | |
04b02fda | 2536 | |
ac4d0be5 | 2537 | assert(buf != NULL); |
2538 | assert(buflen >= ZEBRA_TIME_BUF); | |
2539 | assert(time1 != NULL); | |
04b02fda | 2540 | |
ac4d0be5 | 2541 | if (!*time1) { |
2542 | snprintf(buf, buflen, "never "); | |
2543 | return (buf); | |
2544 | } | |
04b02fda | 2545 | |
ac4d0be5 | 2546 | now = monotime(NULL); |
2547 | now -= *time1; | |
2548 | tm = gmtime(&now); | |
04b02fda | 2549 | |
ac4d0be5 | 2550 | /* Making formatted timer strings. */ |
04b02fda DS |
2551 | #define ONE_DAY_SECOND 60*60*24 |
2552 | #define ONE_WEEK_SECOND 60*60*24*7 | |
2553 | ||
ac4d0be5 | 2554 | if (now < ONE_DAY_SECOND) |
2555 | snprintf(buf, buflen, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
2556 | tm->tm_sec); | |
2557 | else if (now < ONE_WEEK_SECOND) | |
2558 | snprintf(buf, buflen, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
2559 | tm->tm_min); | |
2560 | else | |
2561 | snprintf(buf, buflen, "%02dw%dd%02dh", tm->tm_yday / 7, | |
2562 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
2563 | return buf; | |
2564 | } | |
2565 | ||
2566 | static void zebra_show_client_detail(struct vty *vty, struct zserv *client) | |
2567 | { | |
2568 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2569 | char wbuf[ZEBRA_TIME_BUF], nhbuf[ZEBRA_TIME_BUF], mbuf[ZEBRA_TIME_BUF]; | |
2570 | ||
2571 | vty_out(vty, "Client: %s", zebra_route_string(client->proto)); | |
2572 | if (client->instance) | |
2573 | vty_out(vty, " Instance: %d", client->instance); | |
2574 | vty_out(vty, "%s", VTY_NEWLINE); | |
2575 | ||
2576 | vty_out(vty, "------------------------ %s", VTY_NEWLINE); | |
2577 | vty_out(vty, "FD: %d %s", client->sock, VTY_NEWLINE); | |
2578 | vty_out(vty, "Route Table ID: %d %s", client->rtm_table, VTY_NEWLINE); | |
2579 | ||
2580 | vty_out(vty, "Connect Time: %s %s", | |
2581 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2582 | VTY_NEWLINE); | |
2583 | if (client->nh_reg_time) { | |
2584 | vty_out(vty, "Nexthop Registry Time: %s %s", | |
2585 | zserv_time_buf(&client->nh_reg_time, nhbuf, | |
2586 | ZEBRA_TIME_BUF), | |
2587 | VTY_NEWLINE); | |
2588 | if (client->nh_last_upd_time) | |
2589 | vty_out(vty, "Nexthop Last Update Time: %s %s", | |
2590 | zserv_time_buf(&client->nh_last_upd_time, mbuf, | |
2591 | ZEBRA_TIME_BUF), | |
2592 | VTY_NEWLINE); | |
2593 | else | |
2594 | vty_out(vty, "No Nexthop Update sent%s", VTY_NEWLINE); | |
2595 | } else | |
2596 | vty_out(vty, "Not registered for Nexthop Updates%s", | |
2597 | VTY_NEWLINE); | |
2598 | ||
2599 | vty_out(vty, "Last Msg Rx Time: %s %s", | |
2600 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2601 | VTY_NEWLINE); | |
2602 | vty_out(vty, "Last Msg Tx Time: %s %s", | |
2603 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2604 | VTY_NEWLINE); | |
2605 | if (client->last_read_time) | |
2606 | vty_out(vty, "Last Rcvd Cmd: %s %s", | |
2607 | zserv_command_string(client->last_read_cmd), | |
2608 | VTY_NEWLINE); | |
2609 | if (client->last_write_time) | |
2610 | vty_out(vty, "Last Sent Cmd: %s %s", | |
2611 | zserv_command_string(client->last_write_cmd), | |
2612 | VTY_NEWLINE); | |
2613 | vty_out(vty, "%s", VTY_NEWLINE); | |
2614 | ||
2615 | vty_out(vty, "Type Add Update Del %s", VTY_NEWLINE); | |
2616 | vty_out(vty, "================================================== %s", | |
2617 | VTY_NEWLINE); | |
2618 | vty_out(vty, "IPv4 %-12d%-12d%-12d%s", client->v4_route_add_cnt, | |
2619 | client->v4_route_upd8_cnt, client->v4_route_del_cnt, | |
2620 | VTY_NEWLINE); | |
2621 | vty_out(vty, "IPv6 %-12d%-12d%-12d%s", client->v6_route_add_cnt, | |
2622 | client->v6_route_upd8_cnt, client->v6_route_del_cnt, | |
2623 | VTY_NEWLINE); | |
2624 | vty_out(vty, "Redist:v4 %-12d%-12d%-12d%s", client->redist_v4_add_cnt, | |
2625 | 0, client->redist_v4_del_cnt, VTY_NEWLINE); | |
2626 | vty_out(vty, "Redist:v6 %-12d%-12d%-12d%s", client->redist_v6_add_cnt, | |
2627 | 0, client->redist_v6_del_cnt, VTY_NEWLINE); | |
2628 | vty_out(vty, "Connected %-12d%-12d%-12d%s", client->ifadd_cnt, 0, | |
2629 | client->ifdel_cnt, VTY_NEWLINE); | |
2630 | vty_out(vty, "BFD peer %-12d%-12d%-12d%s", client->bfd_peer_add_cnt, | |
2631 | client->bfd_peer_upd8_cnt, client->bfd_peer_del_cnt, | |
2632 | VTY_NEWLINE); | |
2633 | vty_out(vty, "Interface Up Notifications: %d%s", client->ifup_cnt, | |
2634 | VTY_NEWLINE); | |
2635 | vty_out(vty, "Interface Down Notifications: %d%s", client->ifdown_cnt, | |
2636 | VTY_NEWLINE); | |
2637 | ||
2638 | vty_out(vty, "%s", VTY_NEWLINE); | |
2639 | return; | |
2640 | } | |
2641 | ||
2642 | static void zebra_show_client_brief(struct vty *vty, struct zserv *client) | |
2643 | { | |
2644 | char cbuf[ZEBRA_TIME_BUF], rbuf[ZEBRA_TIME_BUF]; | |
2645 | char wbuf[ZEBRA_TIME_BUF]; | |
2646 | ||
2647 | vty_out(vty, "%-8s%12s %12s%12s%8d/%-8d%8d/%-8d%s", | |
2648 | zebra_route_string(client->proto), | |
2649 | zserv_time_buf(&client->connect_time, cbuf, ZEBRA_TIME_BUF), | |
2650 | zserv_time_buf(&client->last_read_time, rbuf, ZEBRA_TIME_BUF), | |
2651 | zserv_time_buf(&client->last_write_time, wbuf, ZEBRA_TIME_BUF), | |
2652 | client->v4_route_add_cnt + client->v4_route_upd8_cnt, | |
2653 | client->v4_route_del_cnt, | |
2654 | client->v6_route_add_cnt + client->v6_route_upd8_cnt, | |
2655 | client->v6_route_del_cnt, VTY_NEWLINE); | |
2656 | } | |
2657 | ||
2658 | struct zserv *zebra_find_client(u_char proto) | |
2659 | { | |
2660 | struct listnode *node, *nnode; | |
2661 | struct zserv *client; | |
2662 | ||
2663 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { | |
2664 | if (client->proto == proto) | |
2665 | return client; | |
2666 | } | |
2667 | ||
2668 | return NULL; | |
8ed6821e | 2669 | } |
2670 | ||
9bf75362 | 2671 | #ifdef HAVE_NETLINK |
718e3744 | 2672 | /* Display default rtm_table for all clients. */ |
2673 | DEFUN (show_table, | |
2674 | show_table_cmd, | |
2675 | "show table", | |
2676 | SHOW_STR | |
2677 | "default routing table to use for all clients\n") | |
2678 | { | |
ac4d0be5 | 2679 | vty_out(vty, "table %d%s", zebrad.rtm_table_default, VTY_NEWLINE); |
2680 | return CMD_SUCCESS; | |
718e3744 | 2681 | } |
2682 | ||
6147e2c6 | 2683 | DEFUN (config_table, |
718e3744 | 2684 | config_table_cmd, |
2685 | "table TABLENO", | |
2686 | "Configure target kernel routing table\n" | |
2687 | "TABLE integer\n") | |
2688 | { | |
ac4d0be5 | 2689 | zebrad.rtm_table_default = strtol(argv[1]->arg, (char **)0, 10); |
2690 | return CMD_SUCCESS; | |
718e3744 | 2691 | } |
2692 | ||
813d4307 DW |
2693 | DEFUN (no_config_table, |
2694 | no_config_table_cmd, | |
6af6be86 | 2695 | "no table [TABLENO]", |
813d4307 DW |
2696 | NO_STR |
2697 | "Configure target kernel routing table\n" | |
2698 | "TABLE integer\n") | |
2699 | { | |
ac4d0be5 | 2700 | zebrad.rtm_table_default = 0; |
2701 | return CMD_SUCCESS; | |
813d4307 | 2702 | } |
9bf75362 | 2703 | #endif |
813d4307 | 2704 | |
647e4f1f | 2705 | DEFUN (ip_forwarding, |
2706 | ip_forwarding_cmd, | |
2707 | "ip forwarding", | |
2708 | IP_STR | |
2709 | "Turn on IP forwarding") | |
2710 | { | |
ac4d0be5 | 2711 | int ret; |
647e4f1f | 2712 | |
ac4d0be5 | 2713 | ret = ipforward(); |
2714 | if (ret == 0) | |
2715 | ret = ipforward_on(); | |
647e4f1f | 2716 | |
ac4d0be5 | 2717 | if (ret == 0) { |
2718 | vty_out(vty, "Can't turn on IP forwarding%s", VTY_NEWLINE); | |
2719 | return CMD_WARNING; | |
2720 | } | |
647e4f1f | 2721 | |
ac4d0be5 | 2722 | return CMD_SUCCESS; |
647e4f1f | 2723 | } |
2724 | ||
718e3744 | 2725 | DEFUN (no_ip_forwarding, |
2726 | no_ip_forwarding_cmd, | |
2727 | "no ip forwarding", | |
2728 | NO_STR | |
2729 | IP_STR | |
2730 | "Turn off IP forwarding") | |
2731 | { | |
ac4d0be5 | 2732 | int ret; |
718e3744 | 2733 | |
ac4d0be5 | 2734 | ret = ipforward(); |
2735 | if (ret != 0) | |
2736 | ret = ipforward_off(); | |
718e3744 | 2737 | |
ac4d0be5 | 2738 | if (ret != 0) { |
2739 | vty_out(vty, "Can't turn off IP forwarding%s", VTY_NEWLINE); | |
2740 | return CMD_WARNING; | |
2741 | } | |
718e3744 | 2742 | |
ac4d0be5 | 2743 | return CMD_SUCCESS; |
718e3744 | 2744 | } |
2745 | ||
2746 | /* This command is for debugging purpose. */ | |
2747 | DEFUN (show_zebra_client, | |
2748 | show_zebra_client_cmd, | |
2749 | "show zebra client", | |
2750 | SHOW_STR | |
49d73233 | 2751 | "Zebra information\n" |
b9ee4999 | 2752 | "Client information\n") |
718e3744 | 2753 | { |
ac4d0be5 | 2754 | struct listnode *node; |
2755 | struct zserv *client; | |
718e3744 | 2756 | |
ac4d0be5 | 2757 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) |
2758 | zebra_show_client_detail(vty, client); | |
04b02fda | 2759 | |
ac4d0be5 | 2760 | return CMD_SUCCESS; |
04b02fda DS |
2761 | } |
2762 | ||
2763 | /* This command is for debugging purpose. */ | |
2764 | DEFUN (show_zebra_client_summary, | |
2765 | show_zebra_client_summary_cmd, | |
2766 | "show zebra client summary", | |
2767 | SHOW_STR | |
b9ee4999 DS |
2768 | "Zebra information brief\n" |
2769 | "Client information brief\n" | |
2770 | "Brief Summary\n") | |
04b02fda | 2771 | { |
ac4d0be5 | 2772 | struct listnode *node; |
2773 | struct zserv *client; | |
04b02fda | 2774 | |
ac4d0be5 | 2775 | vty_out(vty, |
2776 | "Name Connect Time Last Read Last Write IPv4 Routes IPv6 Routes %s", | |
2777 | VTY_NEWLINE); | |
2778 | vty_out(vty, | |
2779 | "--------------------------------------------------------------------------------%s", | |
2780 | VTY_NEWLINE); | |
04b02fda | 2781 | |
ac4d0be5 | 2782 | for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) |
2783 | zebra_show_client_brief(vty, client); | |
fb018d25 | 2784 | |
ac4d0be5 | 2785 | vty_out(vty, "Routes column shows (added+updated)/deleted%s", |
2786 | VTY_NEWLINE); | |
2787 | return CMD_SUCCESS; | |
718e3744 | 2788 | } |
2789 | ||
2790 | /* Table configuration write function. */ | |
ac4d0be5 | 2791 | static int config_write_table(struct vty *vty) |
718e3744 | 2792 | { |
ac4d0be5 | 2793 | if (zebrad.rtm_table_default) |
2794 | vty_out(vty, "table %d%s", zebrad.rtm_table_default, | |
2795 | VTY_NEWLINE); | |
2796 | return 0; | |
718e3744 | 2797 | } |
2798 | ||
2799 | /* table node for routing tables. */ | |
ac4d0be5 | 2800 | static struct cmd_node table_node = {TABLE_NODE, |
2801 | "", /* This node has no interface. */ | |
2802 | 1}; | |
6b0655a2 | 2803 | |
718e3744 | 2804 | /* Only display ip forwarding is enabled or not. */ |
2805 | DEFUN (show_ip_forwarding, | |
2806 | show_ip_forwarding_cmd, | |
2807 | "show ip forwarding", | |
2808 | SHOW_STR | |
2809 | IP_STR | |
2810 | "IP forwarding status\n") | |
2811 | { | |
ac4d0be5 | 2812 | int ret; |
718e3744 | 2813 | |
ac4d0be5 | 2814 | ret = ipforward(); |
718e3744 | 2815 | |
ac4d0be5 | 2816 | if (ret == 0) |
2817 | vty_out(vty, "IP forwarding is off%s", VTY_NEWLINE); | |
2818 | else | |
2819 | vty_out(vty, "IP forwarding is on%s", VTY_NEWLINE); | |
2820 | return CMD_SUCCESS; | |
718e3744 | 2821 | } |
2822 | ||
718e3744 | 2823 | /* Only display ipv6 forwarding is enabled or not. */ |
2824 | DEFUN (show_ipv6_forwarding, | |
2825 | show_ipv6_forwarding_cmd, | |
2826 | "show ipv6 forwarding", | |
2827 | SHOW_STR | |
2828 | "IPv6 information\n" | |
2829 | "Forwarding status\n") | |
2830 | { | |
ac4d0be5 | 2831 | int ret; |
718e3744 | 2832 | |
ac4d0be5 | 2833 | ret = ipforward_ipv6(); |
718e3744 | 2834 | |
ac4d0be5 | 2835 | switch (ret) { |
2836 | case -1: | |
2837 | vty_out(vty, "ipv6 forwarding is unknown%s", VTY_NEWLINE); | |
2838 | break; | |
2839 | case 0: | |
2840 | vty_out(vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2841 | break; | |
2842 | case 1: | |
2843 | vty_out(vty, "ipv6 forwarding is %s%s", "on", VTY_NEWLINE); | |
2844 | break; | |
2845 | default: | |
2846 | vty_out(vty, "ipv6 forwarding is %s%s", "off", VTY_NEWLINE); | |
2847 | break; | |
2848 | } | |
2849 | return CMD_SUCCESS; | |
718e3744 | 2850 | } |
2851 | ||
55906724 | 2852 | DEFUN (ipv6_forwarding, |
2853 | ipv6_forwarding_cmd, | |
2854 | "ipv6 forwarding", | |
2855 | IPV6_STR | |
2856 | "Turn on IPv6 forwarding") | |
2857 | { | |
ac4d0be5 | 2858 | int ret; |
55906724 | 2859 | |
ac4d0be5 | 2860 | ret = ipforward_ipv6(); |
2861 | if (ret == 0) | |
2862 | ret = ipforward_ipv6_on(); | |
41d3fc96 | 2863 | |
ac4d0be5 | 2864 | if (ret == 0) { |
2865 | vty_out(vty, "Can't turn on IPv6 forwarding%s", VTY_NEWLINE); | |
2866 | return CMD_WARNING; | |
2867 | } | |
55906724 | 2868 | |
ac4d0be5 | 2869 | return CMD_SUCCESS; |
55906724 | 2870 | } |
2871 | ||
718e3744 | 2872 | DEFUN (no_ipv6_forwarding, |
2873 | no_ipv6_forwarding_cmd, | |
2874 | "no ipv6 forwarding", | |
2875 | NO_STR | |
55906724 | 2876 | IPV6_STR |
2877 | "Turn off IPv6 forwarding") | |
718e3744 | 2878 | { |
ac4d0be5 | 2879 | int ret; |
718e3744 | 2880 | |
ac4d0be5 | 2881 | ret = ipforward_ipv6(); |
2882 | if (ret != 0) | |
2883 | ret = ipforward_ipv6_off(); | |
41d3fc96 | 2884 | |
ac4d0be5 | 2885 | if (ret != 0) { |
2886 | vty_out(vty, "Can't turn off IPv6 forwarding%s", VTY_NEWLINE); | |
2887 | return CMD_WARNING; | |
2888 | } | |
718e3744 | 2889 | |
ac4d0be5 | 2890 | return CMD_SUCCESS; |
718e3744 | 2891 | } |
2892 | ||
718e3744 | 2893 | /* IPForwarding configuration write function. */ |
ac4d0be5 | 2894 | static int config_write_forwarding(struct vty *vty) |
718e3744 | 2895 | { |
ac4d0be5 | 2896 | /* FIXME: Find better place for that. */ |
2897 | router_id_write(vty); | |
18a6dce6 | 2898 | |
ac4d0be5 | 2899 | if (!ipforward()) |
2900 | vty_out(vty, "no ip forwarding%s", VTY_NEWLINE); | |
2901 | if (!ipforward_ipv6()) | |
2902 | vty_out(vty, "no ipv6 forwarding%s", VTY_NEWLINE); | |
2903 | vty_out(vty, "!%s", VTY_NEWLINE); | |
2904 | return 0; | |
718e3744 | 2905 | } |
2906 | ||
2907 | /* table node for routing tables. */ | |
ac4d0be5 | 2908 | static struct cmd_node forwarding_node = {FORWARDING_NODE, |
2909 | "", /* This node has no interface. */ | |
2910 | 1}; | |
718e3744 | 2911 | |
718e3744 | 2912 | /* Initialisation of zebra and installation of commands. */ |
ac4d0be5 | 2913 | void zebra_init(void) |
718e3744 | 2914 | { |
ac4d0be5 | 2915 | /* Client list init. */ |
2916 | zebrad.client_list = list_new(); | |
8b2e7cac | 2917 | zebrad.client_list->del = (void (*)(void *))zebra_client_free; |
718e3744 | 2918 | |
ac4d0be5 | 2919 | /* Install configuration write function. */ |
2920 | install_node(&table_node, config_write_table); | |
2921 | install_node(&forwarding_node, config_write_forwarding); | |
718e3744 | 2922 | |
ac4d0be5 | 2923 | install_element(VIEW_NODE, &show_ip_forwarding_cmd); |
2924 | install_element(CONFIG_NODE, &ip_forwarding_cmd); | |
2925 | install_element(CONFIG_NODE, &no_ip_forwarding_cmd); | |
2926 | install_element(ENABLE_NODE, &show_zebra_client_cmd); | |
2927 | install_element(ENABLE_NODE, &show_zebra_client_summary_cmd); | |
718e3744 | 2928 | |
2929 | #ifdef HAVE_NETLINK | |
ac4d0be5 | 2930 | install_element(VIEW_NODE, &show_table_cmd); |
2931 | install_element(CONFIG_NODE, &config_table_cmd); | |
2932 | install_element(CONFIG_NODE, &no_config_table_cmd); | |
718e3744 | 2933 | #endif /* HAVE_NETLINK */ |
2934 | ||
ac4d0be5 | 2935 | install_element(VIEW_NODE, &show_ipv6_forwarding_cmd); |
2936 | install_element(CONFIG_NODE, &ipv6_forwarding_cmd); | |
2937 | install_element(CONFIG_NODE, &no_ipv6_forwarding_cmd); | |
7514fb77 | 2938 | |
ac4d0be5 | 2939 | /* Route-map */ |
2940 | zebra_route_map_init(); | |
718e3744 | 2941 | } |
97be79f9 DO |
2942 | |
2943 | /* Make zebra server socket, wiping any existing one (see bug #403). */ | |
ac4d0be5 | 2944 | void zebra_zserv_socket_init(char *path) |
97be79f9 DO |
2945 | { |
2946 | #ifdef HAVE_TCP_ZEBRA | |
ac4d0be5 | 2947 | zebra_serv(); |
97be79f9 | 2948 | #else |
ac4d0be5 | 2949 | zebra_serv_un(path ? path : ZEBRA_SERV_PATH); |
97be79f9 DO |
2950 | #endif /* HAVE_TCP_ZEBRA */ |
2951 | } |