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718e3744 | 1 | /* Zebra's client library. |
2 | * Copyright (C) 1999 Kunihiro Ishiguro | |
634f9ea2 | 3 | * Copyright (C) 2005 Andrew J. Schorr |
718e3744 | 4 | * |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation; either version 2, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "prefix.h" | |
25 | #include "stream.h" | |
634f9ea2 | 26 | #include "buffer.h" |
718e3744 | 27 | #include "network.h" |
7922fc65 DS |
28 | #include "vrf.h" |
29 | #include "vrf_int.h" | |
718e3744 | 30 | #include "if.h" |
31 | #include "log.h" | |
32 | #include "thread.h" | |
33 | #include "zclient.h" | |
34 | #include "memory.h" | |
35 | #include "table.h" | |
5b30316e | 36 | #include "nexthop.h" |
fea12efb | 37 | #include "mpls.h" |
342213ea | 38 | #include "sockopt.h" |
6b0655a2 | 39 | |
4a1ab8e4 | 40 | DEFINE_MTYPE_STATIC(LIB, ZCLIENT, "Zclient") |
14878121 | 41 | DEFINE_MTYPE_STATIC(LIB, REDIST_INST, "Redistribution instance IDs") |
4a1ab8e4 | 42 | |
718e3744 | 43 | /* Zebra client events. */ |
d62a17ae | 44 | enum event { ZCLIENT_SCHEDULE, ZCLIENT_READ, ZCLIENT_CONNECT }; |
718e3744 | 45 | |
46 | /* Prototype for event manager. */ | |
d62a17ae | 47 | static void zclient_event(enum event, struct zclient *); |
718e3744 | 48 | |
689f5a8c DL |
49 | struct sockaddr_storage zclient_addr; |
50 | socklen_t zclient_addr_len; | |
b5114685 | 51 | |
718e3744 | 52 | /* This file local debug flag. */ |
53 | int zclient_debug = 0; | |
6b0655a2 | 54 | |
996c9314 | 55 | struct zclient_options zclient_options_default = {.receive_notify = false}; |
e1a1880d | 56 | |
718e3744 | 57 | /* Allocate zclient structure. */ |
e1a1880d DS |
58 | struct zclient *zclient_new_notify(struct thread_master *master, |
59 | struct zclient_options *opt) | |
718e3744 | 60 | { |
d62a17ae | 61 | struct zclient *zclient; |
62 | zclient = XCALLOC(MTYPE_ZCLIENT, sizeof(struct zclient)); | |
718e3744 | 63 | |
d62a17ae | 64 | zclient->ibuf = stream_new(ZEBRA_MAX_PACKET_SIZ); |
65 | zclient->obuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
66 | zclient->wb = buffer_new(0); | |
67 | zclient->master = master; | |
718e3744 | 68 | |
e1a1880d DS |
69 | zclient->receive_notify = opt->receive_notify; |
70 | ||
d62a17ae | 71 | return zclient; |
718e3744 | 72 | } |
73 | ||
228da428 | 74 | /* This function is only called when exiting, because |
634f9ea2 | 75 | many parts of the code do not check for I/O errors, so they could |
76 | reference an invalid pointer if the structure was ever freed. | |
634f9ea2 | 77 | |
228da428 | 78 | Free zclient structure. */ |
d62a17ae | 79 | void zclient_free(struct zclient *zclient) |
718e3744 | 80 | { |
d62a17ae | 81 | if (zclient->ibuf) |
82 | stream_free(zclient->ibuf); | |
83 | if (zclient->obuf) | |
84 | stream_free(zclient->obuf); | |
85 | if (zclient->wb) | |
86 | buffer_free(zclient->wb); | |
87 | ||
88 | XFREE(MTYPE_ZCLIENT, zclient); | |
718e3744 | 89 | } |
90 | ||
d62a17ae | 91 | u_short *redist_check_instance(struct redist_proto *red, u_short instance) |
7c8ff89e | 92 | { |
d62a17ae | 93 | struct listnode *node; |
94 | u_short *id; | |
7c8ff89e | 95 | |
d62a17ae | 96 | if (!red->instances) |
97 | return NULL; | |
7c8ff89e | 98 | |
d62a17ae | 99 | for (ALL_LIST_ELEMENTS_RO(red->instances, node, id)) |
100 | if (*id == instance) | |
101 | return id; | |
7c8ff89e | 102 | |
d62a17ae | 103 | return NULL; |
7c8ff89e DS |
104 | } |
105 | ||
d62a17ae | 106 | void redist_add_instance(struct redist_proto *red, u_short instance) |
7c8ff89e | 107 | { |
d62a17ae | 108 | u_short *in; |
7c8ff89e | 109 | |
d62a17ae | 110 | red->enabled = 1; |
7c8ff89e | 111 | |
d62a17ae | 112 | if (!red->instances) |
113 | red->instances = list_new(); | |
7c8ff89e | 114 | |
d62a17ae | 115 | in = XMALLOC(MTYPE_REDIST_INST, sizeof(u_short)); |
116 | *in = instance; | |
117 | listnode_add(red->instances, in); | |
7c8ff89e DS |
118 | } |
119 | ||
d62a17ae | 120 | void redist_del_instance(struct redist_proto *red, u_short instance) |
7c8ff89e | 121 | { |
d62a17ae | 122 | u_short *id; |
123 | ||
124 | id = redist_check_instance(red, instance); | |
125 | if (!id) | |
126 | return; | |
127 | ||
128 | listnode_delete(red->instances, id); | |
129 | XFREE(MTYPE_REDIST_INST, id); | |
130 | if (!red->instances->count) { | |
131 | red->enabled = 0; | |
acdf5e25 | 132 | list_delete_and_null(&red->instances); |
d62a17ae | 133 | } |
7c8ff89e DS |
134 | } |
135 | ||
718e3744 | 136 | /* Stop zebra client services. */ |
d62a17ae | 137 | void zclient_stop(struct zclient *zclient) |
718e3744 | 138 | { |
d62a17ae | 139 | afi_t afi; |
140 | int i; | |
141 | ||
142 | if (zclient_debug) | |
143 | zlog_debug("zclient stopped"); | |
144 | ||
145 | /* Stop threads. */ | |
146 | THREAD_OFF(zclient->t_read); | |
147 | THREAD_OFF(zclient->t_connect); | |
148 | THREAD_OFF(zclient->t_write); | |
149 | ||
150 | /* Reset streams. */ | |
151 | stream_reset(zclient->ibuf); | |
152 | stream_reset(zclient->obuf); | |
153 | ||
154 | /* Empty the write buffer. */ | |
155 | buffer_reset(zclient->wb); | |
156 | ||
157 | /* Close socket. */ | |
158 | if (zclient->sock >= 0) { | |
159 | close(zclient->sock); | |
160 | zclient->sock = -1; | |
161 | } | |
162 | zclient->fail = 0; | |
163 | ||
164 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
165 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
166 | vrf_bitmap_free(zclient->redist[afi][i]); | |
167 | zclient->redist[afi][i] = VRF_BITMAP_NULL; | |
168 | } | |
169 | redist_del_instance( | |
170 | &zclient->mi_redist[afi][zclient->redist_default], | |
171 | zclient->instance); | |
41246cb6 | 172 | } |
41246cb6 | 173 | |
d62a17ae | 174 | vrf_bitmap_free(zclient->default_information); |
175 | zclient->default_information = VRF_BITMAP_NULL; | |
718e3744 | 176 | } |
177 | ||
d62a17ae | 178 | void zclient_reset(struct zclient *zclient) |
718e3744 | 179 | { |
d62a17ae | 180 | afi_t afi; |
3d68677e | 181 | |
d62a17ae | 182 | zclient_stop(zclient); |
3d68677e | 183 | |
d62a17ae | 184 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
185 | redist_del_instance( | |
186 | &zclient->mi_redist[afi][zclient->redist_default], | |
187 | zclient->instance); | |
3d68677e | 188 | |
996c9314 LB |
189 | zclient_init(zclient, zclient->redist_default, zclient->instance, |
190 | zclient->privs); | |
718e3744 | 191 | } |
192 | ||
689f5a8c DL |
193 | /** |
194 | * Connect to zebra daemon. | |
195 | * @param zclient a pointer to zclient structure | |
196 | * @return socket fd just to make sure that connection established | |
197 | * @see zclient_init | |
e1a1880d | 198 | * @see zclient_new_notify |
689f5a8c DL |
199 | */ |
200 | int zclient_socket_connect(struct zclient *zclient) | |
718e3744 | 201 | { |
d62a17ae | 202 | int sock; |
203 | int ret; | |
d62a17ae | 204 | |
205 | /* We should think about IPv6 connection. */ | |
689f5a8c | 206 | sock = socket(zclient_addr.ss_family, SOCK_STREAM, 0); |
d62a17ae | 207 | if (sock < 0) |
208 | return -1; | |
209 | ||
689f5a8c | 210 | set_cloexec(sock); |
d62a17ae | 211 | |
342213ea DS |
212 | zclient->privs->change(ZPRIVS_RAISE); |
213 | setsockopt_so_sendbuf(sock, 1048576); | |
214 | zclient->privs->change(ZPRIVS_LOWER); | |
215 | ||
d62a17ae | 216 | /* Connect to zebra. */ |
996c9314 | 217 | ret = connect(sock, (struct sockaddr *)&zclient_addr, zclient_addr_len); |
d62a17ae | 218 | if (ret < 0) { |
219 | if (zclient_debug) | |
220 | zlog_warn("%s connect failure: %d(%s)", | |
221 | __PRETTY_FUNCTION__, errno, | |
222 | safe_strerror(errno)); | |
223 | close(sock); | |
224 | return -1; | |
225 | } | |
718e3744 | 226 | |
689f5a8c | 227 | zclient->sock = sock; |
d62a17ae | 228 | return sock; |
718e3744 | 229 | } |
230 | ||
d62a17ae | 231 | static int zclient_failed(struct zclient *zclient) |
634f9ea2 | 232 | { |
d62a17ae | 233 | zclient->fail++; |
234 | zclient_stop(zclient); | |
235 | zclient_event(ZCLIENT_CONNECT, zclient); | |
236 | return -1; | |
634f9ea2 | 237 | } |
238 | ||
d62a17ae | 239 | static int zclient_flush_data(struct thread *thread) |
634f9ea2 | 240 | { |
d62a17ae | 241 | struct zclient *zclient = THREAD_ARG(thread); |
242 | ||
243 | zclient->t_write = NULL; | |
244 | if (zclient->sock < 0) | |
245 | return -1; | |
246 | switch (buffer_flush_available(zclient->wb, zclient->sock)) { | |
247 | case BUFFER_ERROR: | |
248 | zlog_warn( | |
249 | "%s: buffer_flush_available failed on zclient fd %d, closing", | |
250 | __func__, zclient->sock); | |
251 | return zclient_failed(zclient); | |
252 | break; | |
253 | case BUFFER_PENDING: | |
254 | zclient->t_write = NULL; | |
255 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
256 | zclient->sock, &zclient->t_write); | |
257 | break; | |
258 | case BUFFER_EMPTY: | |
259 | break; | |
260 | } | |
261 | return 0; | |
634f9ea2 | 262 | } |
263 | ||
d62a17ae | 264 | int zclient_send_message(struct zclient *zclient) |
634f9ea2 | 265 | { |
d62a17ae | 266 | if (zclient->sock < 0) |
267 | return -1; | |
268 | switch (buffer_write(zclient->wb, zclient->sock, | |
269 | STREAM_DATA(zclient->obuf), | |
270 | stream_get_endp(zclient->obuf))) { | |
271 | case BUFFER_ERROR: | |
272 | zlog_warn("%s: buffer_write failed to zclient fd %d, closing", | |
273 | __func__, zclient->sock); | |
274 | return zclient_failed(zclient); | |
275 | break; | |
276 | case BUFFER_EMPTY: | |
277 | THREAD_OFF(zclient->t_write); | |
278 | break; | |
279 | case BUFFER_PENDING: | |
280 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
281 | zclient->sock, &zclient->t_write); | |
282 | break; | |
283 | } | |
284 | return 0; | |
634f9ea2 | 285 | } |
286 | ||
d62a17ae | 287 | void zclient_create_header(struct stream *s, uint16_t command, vrf_id_t vrf_id) |
c1b9800a | 288 | { |
d62a17ae | 289 | /* length placeholder, caller can update */ |
290 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
291 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
292 | stream_putc(s, ZSERV_VERSION); | |
a9ff90c4 | 293 | stream_putl(s, vrf_id); |
d62a17ae | 294 | stream_putw(s, command); |
c1b9800a | 295 | } |
296 | ||
d62a17ae | 297 | int zclient_read_header(struct stream *s, int sock, u_int16_t *size, |
298 | u_char *marker, u_char *version, vrf_id_t *vrf_id, | |
299 | u_int16_t *cmd) | |
55119089 | 300 | { |
d62a17ae | 301 | if (stream_read(s, sock, ZEBRA_HEADER_SIZE) != ZEBRA_HEADER_SIZE) |
302 | return -1; | |
303 | ||
ec93aa12 DS |
304 | STREAM_GETW(s, *size); |
305 | *size -= ZEBRA_HEADER_SIZE; | |
306 | STREAM_GETC(s, *marker); | |
307 | STREAM_GETC(s, *version); | |
a9ff90c4 | 308 | STREAM_GETL(s, *vrf_id); |
ec93aa12 | 309 | STREAM_GETW(s, *cmd); |
d62a17ae | 310 | |
311 | if (*version != ZSERV_VERSION || *marker != ZEBRA_HEADER_MARKER) { | |
312 | zlog_err( | |
313 | "%s: socket %d version mismatch, marker %d, version %d", | |
314 | __func__, sock, *marker, *version); | |
315 | return -1; | |
316 | } | |
317 | ||
318 | if (*size && stream_read(s, sock, *size) != *size) | |
319 | return -1; | |
320 | ||
ec93aa12 | 321 | stream_failure: |
d62a17ae | 322 | return 0; |
55119089 ND |
323 | } |
324 | ||
634f9ea2 | 325 | /* Send simple Zebra message. */ |
d62a17ae | 326 | static int zebra_message_send(struct zclient *zclient, int command, |
327 | vrf_id_t vrf_id) | |
718e3744 | 328 | { |
d62a17ae | 329 | struct stream *s; |
718e3744 | 330 | |
d62a17ae | 331 | /* Get zclient output buffer. */ |
332 | s = zclient->obuf; | |
333 | stream_reset(s); | |
718e3744 | 334 | |
d62a17ae | 335 | /* Send very simple command only Zebra message. */ |
336 | zclient_create_header(s, command, vrf_id); | |
337 | ||
338 | return zclient_send_message(zclient); | |
718e3744 | 339 | } |
340 | ||
d62a17ae | 341 | static int zebra_hello_send(struct zclient *zclient) |
2ea1ab1c | 342 | { |
d62a17ae | 343 | struct stream *s; |
344 | ||
345 | if (zclient->redist_default) { | |
346 | s = zclient->obuf; | |
347 | stream_reset(s); | |
348 | ||
349 | /* The VRF ID in the HELLO message is always 0. */ | |
350 | zclient_create_header(s, ZEBRA_HELLO, VRF_DEFAULT); | |
351 | stream_putc(s, zclient->redist_default); | |
352 | stream_putw(s, zclient->instance); | |
e1a1880d DS |
353 | if (zclient->receive_notify) |
354 | stream_putc(s, 1); | |
355 | else | |
356 | stream_putc(s, 0); | |
357 | ||
d62a17ae | 358 | stream_putw_at(s, 0, stream_get_endp(s)); |
359 | return zclient_send_message(zclient); | |
360 | } | |
361 | ||
362 | return 0; | |
2ea1ab1c VT |
363 | } |
364 | ||
7d061b3c | 365 | void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id, afi_t afi, |
339e36d2 | 366 | mpls_label_t label, enum lsp_types_t ltype) |
c83c5e44 DS |
367 | { |
368 | struct stream *s; | |
369 | ||
370 | s = zclient->obuf; | |
371 | stream_reset(s); | |
372 | ||
373 | zclient_create_header(s, ZEBRA_VRF_LABEL, vrf_id); | |
374 | stream_putl(s, label); | |
7d061b3c | 375 | stream_putc(s, afi); |
339e36d2 | 376 | stream_putc(s, ltype); |
c83c5e44 DS |
377 | stream_putw_at(s, 0, stream_get_endp(s)); |
378 | zclient_send_message(zclient); | |
379 | } | |
380 | ||
0e5223e7 | 381 | /* Send register requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 382 | void zclient_send_reg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
7076bb2f | 383 | { |
d62a17ae | 384 | int i; |
385 | afi_t afi; | |
386 | ||
d62a17ae | 387 | /* If not connected to the zebra yet. */ |
388 | if (zclient->sock < 0) | |
389 | return; | |
390 | ||
391 | if (zclient_debug) | |
392 | zlog_debug("%s: send register messages for VRF %u", __func__, | |
393 | vrf_id); | |
394 | ||
395 | /* We need router-id information. */ | |
396 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_ADD, vrf_id); | |
397 | ||
398 | /* We need interface information. */ | |
399 | zebra_message_send(zclient, ZEBRA_INTERFACE_ADD, vrf_id); | |
400 | ||
401 | /* Set unwanted redistribute route. */ | |
402 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
403 | vrf_bitmap_set(zclient->redist[afi][zclient->redist_default], | |
404 | vrf_id); | |
405 | ||
406 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
407 | if (vrf_id == VRF_DEFAULT) { |
408 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
409 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
410 | if (!zclient->mi_redist[afi][i].enabled) | |
411 | continue; | |
412 | ||
413 | struct listnode *node; | |
414 | u_short *id; | |
415 | ||
416 | for (ALL_LIST_ELEMENTS_RO( | |
417 | zclient->mi_redist[afi][i] | |
996c9314 LB |
418 | .instances, |
419 | node, id)) | |
0d9e7f45 DS |
420 | if (!(i == zclient->redist_default |
421 | && *id == zclient->instance)) | |
422 | zebra_redistribute_send( | |
423 | ZEBRA_REDISTRIBUTE_ADD, | |
996c9314 | 424 | zclient, afi, i, *id, |
0d9e7f45 DS |
425 | VRF_DEFAULT); |
426 | } | |
427 | } | |
428 | } | |
d62a17ae | 429 | |
430 | /* Flush all redistribute request. */ | |
431 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
432 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
433 | if (i != zclient->redist_default | |
434 | && vrf_bitmap_check(zclient->redist[afi][i], | |
435 | vrf_id)) | |
436 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, | |
437 | zclient, afi, i, 0, | |
438 | vrf_id); | |
439 | ||
440 | /* If default information is needed. */ | |
441 | if (vrf_bitmap_check(zclient->default_information, VRF_DEFAULT)) | |
442 | zebra_message_send(zclient, ZEBRA_REDISTRIBUTE_DEFAULT_ADD, | |
443 | vrf_id); | |
7076bb2f FL |
444 | } |
445 | ||
0e5223e7 | 446 | /* Send unregister requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 447 | void zclient_send_dereg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
0e5223e7 | 448 | { |
d62a17ae | 449 | int i; |
450 | afi_t afi; | |
451 | ||
d62a17ae | 452 | /* If not connected to the zebra yet. */ |
453 | if (zclient->sock < 0) | |
454 | return; | |
455 | ||
456 | if (zclient_debug) | |
457 | zlog_debug("%s: send deregister messages for VRF %u", __func__, | |
458 | vrf_id); | |
459 | ||
460 | /* We need router-id information. */ | |
461 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_DELETE, vrf_id); | |
462 | ||
463 | /* We need interface information. */ | |
464 | zebra_message_send(zclient, ZEBRA_INTERFACE_DELETE, vrf_id); | |
465 | ||
466 | /* Set unwanted redistribute route. */ | |
467 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
09eef679 DS |
468 | vrf_bitmap_unset(zclient->redist[afi][zclient->redist_default], |
469 | vrf_id); | |
d62a17ae | 470 | |
471 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
472 | if (vrf_id == VRF_DEFAULT) { |
473 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
474 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
475 | if (!zclient->mi_redist[afi][i].enabled) | |
476 | continue; | |
477 | ||
478 | struct listnode *node; | |
479 | u_short *id; | |
480 | ||
481 | for (ALL_LIST_ELEMENTS_RO( | |
482 | zclient->mi_redist[afi][i] | |
996c9314 LB |
483 | .instances, |
484 | node, id)) | |
0d9e7f45 DS |
485 | if (!(i == zclient->redist_default |
486 | && *id == zclient->instance)) | |
487 | zebra_redistribute_send( | |
488 | ZEBRA_REDISTRIBUTE_DELETE, | |
996c9314 | 489 | zclient, afi, i, *id, |
0d9e7f45 DS |
490 | VRF_DEFAULT); |
491 | } | |
492 | } | |
493 | } | |
d62a17ae | 494 | |
495 | /* Flush all redistribute request. */ | |
496 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
497 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
498 | if (i != zclient->redist_default | |
499 | && vrf_bitmap_check(zclient->redist[afi][i], | |
500 | vrf_id)) | |
501 | zebra_redistribute_send( | |
502 | ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
503 | i, 0, vrf_id); | |
504 | ||
505 | /* If default information is needed. */ | |
506 | if (vrf_bitmap_check(zclient->default_information, VRF_DEFAULT)) | |
507 | zebra_message_send(zclient, ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, | |
508 | vrf_id); | |
0e5223e7 | 509 | } |
510 | ||
4a04e5f7 | 511 | /* Send request to zebra daemon to start or stop RA. */ |
d62a17ae | 512 | void zclient_send_interface_radv_req(struct zclient *zclient, vrf_id_t vrf_id, |
513 | struct interface *ifp, int enable, | |
514 | int ra_interval) | |
4a04e5f7 | 515 | { |
d62a17ae | 516 | struct stream *s; |
4a04e5f7 | 517 | |
d62a17ae | 518 | /* If not connected to the zebra yet. */ |
519 | if (zclient->sock < 0) | |
520 | return; | |
4a04e5f7 | 521 | |
d62a17ae | 522 | /* Form and send message. */ |
523 | s = zclient->obuf; | |
524 | stream_reset(s); | |
4a04e5f7 | 525 | |
d62a17ae | 526 | if (enable) |
527 | zclient_create_header(s, ZEBRA_INTERFACE_ENABLE_RADV, vrf_id); | |
528 | else | |
529 | zclient_create_header(s, ZEBRA_INTERFACE_DISABLE_RADV, vrf_id); | |
4a04e5f7 | 530 | |
d62a17ae | 531 | stream_putl(s, ifp->ifindex); |
532 | stream_putl(s, ra_interval); | |
4a04e5f7 | 533 | |
d62a17ae | 534 | stream_putw_at(s, 0, stream_get_endp(s)); |
4a04e5f7 | 535 | |
d62a17ae | 536 | zclient_send_message(zclient); |
4a04e5f7 | 537 | } |
538 | ||
718e3744 | 539 | /* Make connection to zebra daemon. */ |
d62a17ae | 540 | int zclient_start(struct zclient *zclient) |
718e3744 | 541 | { |
d62a17ae | 542 | if (zclient_debug) |
543 | zlog_info("zclient_start is called"); | |
544 | ||
d62a17ae | 545 | /* If already connected to the zebra. */ |
546 | if (zclient->sock >= 0) | |
547 | return 0; | |
548 | ||
549 | /* Check connect thread. */ | |
550 | if (zclient->t_connect) | |
551 | return 0; | |
552 | ||
553 | if (zclient_socket_connect(zclient) < 0) { | |
554 | if (zclient_debug) | |
555 | zlog_debug("zclient connection fail"); | |
556 | zclient->fail++; | |
557 | zclient_event(ZCLIENT_CONNECT, zclient); | |
558 | return -1; | |
559 | } | |
718e3744 | 560 | |
d62a17ae | 561 | if (set_nonblocking(zclient->sock) < 0) |
562 | zlog_warn("%s: set_nonblocking(%d) failed", __func__, | |
563 | zclient->sock); | |
718e3744 | 564 | |
d62a17ae | 565 | /* Clear fail count. */ |
566 | zclient->fail = 0; | |
567 | if (zclient_debug) | |
568 | zlog_debug("zclient connect success with socket [%d]", | |
569 | zclient->sock); | |
718e3744 | 570 | |
d62a17ae | 571 | /* Create read thread. */ |
572 | zclient_event(ZCLIENT_READ, zclient); | |
718e3744 | 573 | |
d62a17ae | 574 | zebra_hello_send(zclient); |
718e3744 | 575 | |
d62a17ae | 576 | /* Inform the successful connection. */ |
577 | if (zclient->zebra_connected) | |
578 | (*zclient->zebra_connected)(zclient); | |
718e3744 | 579 | |
d62a17ae | 580 | return 0; |
718e3744 | 581 | } |
6b0655a2 | 582 | |
078430f6 DS |
583 | /* Initialize zebra client. Argument redist_default is unwanted |
584 | redistribute route type. */ | |
996c9314 LB |
585 | void zclient_init(struct zclient *zclient, int redist_default, u_short instance, |
586 | struct zebra_privs_t *privs) | |
078430f6 | 587 | { |
d62a17ae | 588 | int afi, i; |
589 | ||
d62a17ae | 590 | /* Set -1 to the default socket value. */ |
591 | zclient->sock = -1; | |
342213ea | 592 | zclient->privs = privs; |
d62a17ae | 593 | |
594 | /* Clear redistribution flags. */ | |
595 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
596 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
597 | zclient->redist[afi][i] = vrf_bitmap_init(); | |
598 | ||
599 | /* Set unwanted redistribute route. bgpd does not need BGP route | |
600 | redistribution. */ | |
601 | zclient->redist_default = redist_default; | |
602 | zclient->instance = instance; | |
603 | /* Pending: make afi(s) an arg. */ | |
604 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
605 | redist_add_instance(&zclient->mi_redist[afi][redist_default], | |
606 | instance); | |
607 | ||
608 | /* Set default-information redistribute to zero. */ | |
609 | zclient->default_information = vrf_bitmap_init(); | |
d62a17ae | 610 | |
611 | if (zclient_debug) | |
612 | zlog_debug("zclient_start is called"); | |
613 | ||
614 | zclient_event(ZCLIENT_SCHEDULE, zclient); | |
7076bb2f | 615 | } |
078430f6 | 616 | |
7076bb2f FL |
617 | /* This function is a wrapper function for calling zclient_start from |
618 | timer or event thread. */ | |
d62a17ae | 619 | static int zclient_connect(struct thread *t) |
7076bb2f | 620 | { |
d62a17ae | 621 | struct zclient *zclient; |
078430f6 | 622 | |
d62a17ae | 623 | zclient = THREAD_ARG(t); |
624 | zclient->t_connect = NULL; | |
078430f6 | 625 | |
d62a17ae | 626 | if (zclient_debug) |
627 | zlog_debug("zclient_connect is called"); | |
078430f6 | 628 | |
d62a17ae | 629 | return zclient_start(zclient); |
078430f6 DS |
630 | } |
631 | ||
3c192540 DS |
632 | int zclient_send_rnh(struct zclient *zclient, int command, struct prefix *p, |
633 | bool exact_match, vrf_id_t vrf_id) | |
634 | { | |
635 | struct stream *s; | |
636 | ||
637 | s = zclient->obuf; | |
638 | stream_reset(s); | |
639 | zclient_create_header(s, command, vrf_id); | |
640 | stream_putc(s, (exact_match) ? 1 : 0); | |
641 | ||
642 | stream_putw(s, PREFIX_FAMILY(p)); | |
643 | stream_putc(s, p->prefixlen); | |
644 | switch (PREFIX_FAMILY(p)) { | |
645 | case AF_INET: | |
646 | stream_put_in_addr(s, &p->u.prefix4); | |
647 | break; | |
648 | case AF_INET6: | |
649 | stream_put(s, &(p->u.prefix6), 16); | |
650 | break; | |
651 | default: | |
652 | break; | |
653 | } | |
654 | stream_putw_at(s, 0, stream_get_endp(s)); | |
655 | ||
656 | return zclient_send_message(zclient); | |
657 | } | |
658 | ||
d62a17ae | 659 | /* |
660 | * "xdr_encode"-like interface that allows daemon (client) to send | |
661 | * a message to zebra server for a route that needs to be | |
662 | * added/deleted to the kernel. Info about the route is specified | |
663 | * by the caller in a struct zapi_ipv4. zapi_ipv4_read() then writes | |
664 | * the info down the zclient socket using the stream_* functions. | |
665 | * | |
666 | * The corresponding read ("xdr_decode") function on the server | |
667 | * side is zread_ipv4_add()/zread_ipv4_delete(). | |
668 | * | |
669 | * 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F | |
670 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
671 | * | Length (2) | Command | Route Type | | |
672 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
673 | * | ZEBRA Flags | Message Flags | Prefix length | | |
674 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
675 | * | Destination IPv4 Prefix for route | | |
676 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
677 | * | Nexthop count | | |
678 | * +-+-+-+-+-+-+-+-+ | |
679 | * | |
680 | * | |
681 | * A number of IPv4 nexthop(s) or nexthop interface index(es) are then | |
682 | * described, as per the Nexthop count. Each nexthop described as: | |
683 | * | |
684 | * +-+-+-+-+-+-+-+-+ | |
685 | * | Nexthop Type | Set to one of ZEBRA_NEXTHOP_* | |
686 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
687 | * | IPv4 Nexthop address or Interface Index number | | |
688 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
689 | * | |
09a484dd DL |
690 | * Alternatively, if the route is a blackhole route, then Nexthop count |
691 | * is set to 1 and a nexthop of type NEXTHOP_TYPE_BLACKHOLE is the sole | |
692 | * nexthop. | |
d62a17ae | 693 | * |
694 | * The original struct zapi_ipv4, zapi_ipv4_route() and zread_ipv4_*() | |
695 | * infrastructure was built around the traditional (32-bit "gate OR | |
696 | * ifindex") nexthop data unit. A special encoding can be used to feed | |
697 | * onlink (64-bit "gate AND ifindex") nexthops into zapi_ipv4_route() | |
698 | * using the same zapi_ipv4 structure. This is done by setting zapi_ipv4 | |
699 | * fields as follows: | |
700 | * - .message |= ZAPI_MESSAGE_NEXTHOP | ZAPI_MESSAGE_ONLINK | |
701 | * - .nexthop_num == .ifindex_num | |
702 | * - .nexthop and .ifindex are filled with gate and ifindex parts of | |
703 | * each compound nexthop, both in the same order | |
704 | * | |
705 | * zapi_ipv4_route() will produce two nexthop data units for each such | |
706 | * interleaved 64-bit nexthop. On the zserv side of the socket it will be | |
707 | * mapped to a singlle NEXTHOP_TYPE_IPV4_IFINDEX_OL RIB nexthop structure. | |
708 | * | |
709 | * If ZAPI_MESSAGE_DISTANCE is set, the distance value is written as a 1 | |
710 | * byte value. | |
711 | * | |
712 | * If ZAPI_MESSAGE_METRIC is set, the metric value is written as an 8 | |
713 | * byte value. | |
714 | * | |
715 | * If ZAPI_MESSAGE_TAG is set, the tag value is written as a 4 byte value | |
716 | * | |
717 | * If ZAPI_MESSAGE_MTU is set, the mtu value is written as a 4 byte value | |
718 | * | |
719 | * XXX: No attention paid to alignment. | |
720 | */ | |
721 | int zapi_ipv4_route(u_char cmd, struct zclient *zclient, struct prefix_ipv4 *p, | |
722 | struct zapi_ipv4 *api) | |
718e3744 | 723 | { |
d62a17ae | 724 | int i; |
725 | int psize; | |
726 | struct stream *s; | |
727 | ||
728 | /* Reset stream. */ | |
729 | s = zclient->obuf; | |
730 | stream_reset(s); | |
731 | ||
732 | /* Some checks for labeled-unicast. The current expectation is that each | |
733 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
734 | */ | |
735 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
736 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
737 | /* We expect prefixes installed with labels and the number to | |
738 | * match | |
739 | * the number of nexthops. | |
740 | */ | |
741 | assert(api->label_num == api->nexthop_num); | |
742 | } | |
743 | ||
744 | zclient_create_header(s, cmd, api->vrf_id); | |
745 | ||
746 | /* Put type and nexthop. */ | |
747 | stream_putc(s, api->type); | |
748 | stream_putw(s, api->instance); | |
749 | stream_putl(s, api->flags); | |
750 | stream_putc(s, api->message); | |
751 | stream_putw(s, api->safi); | |
752 | ||
753 | /* Put prefix information. */ | |
754 | psize = PSIZE(p->prefixlen); | |
755 | stream_putc(s, p->prefixlen); | |
756 | stream_write(s, (u_char *)&p->prefix, psize); | |
757 | ||
758 | /* Nexthop, ifindex, distance and metric information. */ | |
759 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 760 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 761 | |
762 | for (i = 0; i < api->nexthop_num; i++) { | |
763 | stream_putc(s, NEXTHOP_TYPE_IPV4); | |
764 | stream_put_in_addr(s, api->nexthop[i]); | |
765 | /* For labeled-unicast, each nexthop is followed by | |
766 | * label. */ | |
767 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
768 | stream_putl(s, api->label[i]); | |
769 | } | |
770 | for (i = 0; i < api->ifindex_num; i++) { | |
771 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
772 | stream_putl(s, api->ifindex[i]); | |
773 | } | |
774 | } | |
775 | ||
776 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
777 | stream_putc(s, api->distance); | |
778 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
779 | stream_putl(s, api->metric); | |
780 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
781 | stream_putl(s, api->tag); | |
782 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
783 | stream_putl(s, api->mtu); | |
784 | ||
785 | /* Put length at the first point of the stream. */ | |
786 | stream_putw_at(s, 0, stream_get_endp(s)); | |
787 | ||
788 | return zclient_send_message(zclient); | |
718e3744 | 789 | } |
790 | ||
d62a17ae | 791 | int zapi_ipv4_route_ipv6_nexthop(u_char cmd, struct zclient *zclient, |
792 | struct prefix_ipv4 *p, struct zapi_ipv6 *api) | |
8a92a8a0 | 793 | { |
d62a17ae | 794 | int i; |
795 | int psize; | |
796 | struct stream *s; | |
797 | ||
798 | /* Reset stream. */ | |
799 | s = zclient->obuf; | |
800 | stream_reset(s); | |
801 | ||
802 | /* Some checks for labeled-unicast. The current expectation is that each | |
803 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
804 | */ | |
805 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
806 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
807 | /* We expect prefixes installed with labels and the number to | |
808 | * match | |
809 | * the number of nexthops. | |
810 | */ | |
811 | assert(api->label_num == api->nexthop_num); | |
8a92a8a0 | 812 | } |
d62a17ae | 813 | |
814 | zclient_create_header(s, cmd, api->vrf_id); | |
815 | ||
816 | /* Put type and nexthop. */ | |
817 | stream_putc(s, api->type); | |
818 | stream_putw(s, api->instance); | |
819 | stream_putl(s, api->flags); | |
820 | stream_putc(s, api->message); | |
821 | stream_putw(s, api->safi); | |
822 | ||
823 | /* Put prefix information. */ | |
824 | psize = PSIZE(p->prefixlen); | |
825 | stream_putc(s, p->prefixlen); | |
826 | stream_write(s, (u_char *)&p->prefix, psize); | |
827 | ||
828 | /* Nexthop, ifindex, distance and metric information. */ | |
829 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 830 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 831 | |
832 | for (i = 0; i < api->nexthop_num; i++) { | |
833 | stream_putc(s, NEXTHOP_TYPE_IPV6); | |
834 | stream_write(s, (u_char *)api->nexthop[i], 16); | |
835 | /* For labeled-unicast, each nexthop is followed by | |
836 | * label. */ | |
837 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
838 | stream_putl(s, api->label[i]); | |
839 | } | |
840 | for (i = 0; i < api->ifindex_num; i++) { | |
841 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
842 | stream_putl(s, api->ifindex[i]); | |
843 | } | |
8a92a8a0 | 844 | } |
8a92a8a0 | 845 | |
d62a17ae | 846 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
847 | stream_putc(s, api->distance); | |
848 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
849 | stream_putl(s, api->metric); | |
850 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
851 | stream_putl(s, api->tag); | |
852 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
853 | stream_putl(s, api->mtu); | |
8a92a8a0 | 854 | |
d62a17ae | 855 | /* Put length at the first point of the stream. */ |
856 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a92a8a0 | 857 | |
d62a17ae | 858 | return zclient_send_message(zclient); |
8a92a8a0 DS |
859 | } |
860 | ||
d62a17ae | 861 | int zapi_ipv6_route(u_char cmd, struct zclient *zclient, struct prefix_ipv6 *p, |
862 | struct prefix_ipv6 *src_p, struct zapi_ipv6 *api) | |
718e3744 | 863 | { |
d62a17ae | 864 | int i; |
865 | int psize; | |
866 | struct stream *s; | |
867 | ||
868 | /* either we have !SRCPFX && src_p == NULL, or SRCPFX && src_p != NULL | |
869 | */ | |
870 | assert(!(api->message & ZAPI_MESSAGE_SRCPFX) == !src_p); | |
871 | ||
872 | /* Reset stream. */ | |
873 | s = zclient->obuf; | |
874 | stream_reset(s); | |
875 | ||
876 | /* Some checks for labeled-unicast. The current expectation is that each | |
877 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
878 | */ | |
879 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
880 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
881 | /* We expect prefixes installed with labels and the number to | |
882 | * match | |
883 | * the number of nexthops. | |
884 | */ | |
885 | assert(api->label_num == api->nexthop_num); | |
718e3744 | 886 | } |
d62a17ae | 887 | |
888 | zclient_create_header(s, cmd, api->vrf_id); | |
889 | ||
890 | /* Put type and nexthop. */ | |
891 | stream_putc(s, api->type); | |
892 | stream_putw(s, api->instance); | |
893 | stream_putl(s, api->flags); | |
894 | stream_putc(s, api->message); | |
895 | stream_putw(s, api->safi); | |
896 | ||
897 | /* Put prefix information. */ | |
898 | psize = PSIZE(p->prefixlen); | |
899 | stream_putc(s, p->prefixlen); | |
900 | stream_write(s, (u_char *)&p->prefix, psize); | |
901 | ||
902 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
903 | psize = PSIZE(src_p->prefixlen); | |
904 | stream_putc(s, src_p->prefixlen); | |
905 | stream_write(s, (u_char *)&src_p->prefix, psize); | |
718e3744 | 906 | } |
718e3744 | 907 | |
d62a17ae | 908 | /* Nexthop, ifindex, distance and metric information. */ |
909 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 910 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 911 | |
912 | for (i = 0; i < api->nexthop_num; i++) { | |
913 | stream_putc(s, NEXTHOP_TYPE_IPV6); | |
914 | stream_write(s, (u_char *)api->nexthop[i], 16); | |
915 | /* For labeled-unicast, each nexthop is followed by | |
916 | * label. */ | |
917 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
918 | stream_putl(s, api->label[i]); | |
919 | } | |
920 | for (i = 0; i < api->ifindex_num; i++) { | |
921 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
922 | stream_putl(s, api->ifindex[i]); | |
923 | } | |
924 | } | |
718e3744 | 925 | |
d62a17ae | 926 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
927 | stream_putc(s, api->distance); | |
928 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
929 | stream_putl(s, api->metric); | |
930 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
931 | stream_putl(s, api->tag); | |
932 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
933 | stream_putl(s, api->mtu); | |
718e3744 | 934 | |
d62a17ae | 935 | /* Put length at the first point of the stream. */ |
936 | stream_putw_at(s, 0, stream_get_endp(s)); | |
937 | ||
938 | return zclient_send_message(zclient); | |
718e3744 | 939 | } |
718e3744 | 940 | |
0e51b4a3 RW |
941 | int zclient_route_send(u_char cmd, struct zclient *zclient, |
942 | struct zapi_route *api) | |
657cde12 | 943 | { |
0e51b4a3 RW |
944 | if (zapi_route_encode(cmd, zclient->obuf, api) < 0) |
945 | return -1; | |
946 | return zclient_send_message(zclient); | |
947 | } | |
948 | ||
949 | int zapi_route_encode(u_char cmd, struct stream *s, struct zapi_route *api) | |
950 | { | |
951 | struct zapi_nexthop *api_nh; | |
d62a17ae | 952 | int i; |
953 | int psize; | |
d62a17ae | 954 | |
d62a17ae | 955 | stream_reset(s); |
d62a17ae | 956 | zclient_create_header(s, cmd, api->vrf_id); |
957 | ||
d62a17ae | 958 | stream_putc(s, api->type); |
959 | stream_putw(s, api->instance); | |
960 | stream_putl(s, api->flags); | |
961 | stream_putc(s, api->message); | |
832d0f56 | 962 | stream_putc(s, api->safi); |
90264d64 | 963 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) |
2dbad57f | 964 | stream_put(s, &(api->rmac), sizeof(struct ethaddr)); |
d62a17ae | 965 | |
966 | /* Put prefix information. */ | |
0e51b4a3 | 967 | stream_putc(s, api->prefix.family); |
bb1b9c47 RW |
968 | psize = PSIZE(api->prefix.prefixlen); |
969 | stream_putc(s, api->prefix.prefixlen); | |
970 | stream_write(s, (u_char *)&api->prefix.u.prefix, psize); | |
d62a17ae | 971 | |
972 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
bb1b9c47 RW |
973 | psize = PSIZE(api->src_prefix.prefixlen); |
974 | stream_putc(s, api->src_prefix.prefixlen); | |
975 | stream_write(s, (u_char *)&api->src_prefix.prefix, psize); | |
d62a17ae | 976 | } |
977 | ||
0e51b4a3 | 978 | /* Nexthops. */ |
d62a17ae | 979 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { |
bb1b9c47 RW |
980 | /* limit the number of nexthops if necessary */ |
981 | if (api->nexthop_num > MULTIPATH_NUM) { | |
982 | char buf[PREFIX2STR_BUFFER]; | |
983 | ||
984 | prefix2str(&api->prefix, buf, sizeof(buf)); | |
985 | zlog_warn( | |
a74e593b RW |
986 | "%s: prefix %s: can't encode %u nexthops " |
987 | "(maximum is %u)", | |
988 | __func__, buf, api->nexthop_num, MULTIPATH_NUM); | |
989 | return -1; | |
bb1b9c47 RW |
990 | } |
991 | ||
b5f79651 | 992 | stream_putw(s, api->nexthop_num); |
d62a17ae | 993 | |
994 | for (i = 0; i < api->nexthop_num; i++) { | |
bb1b9c47 RW |
995 | api_nh = &api->nexthops[i]; |
996 | ||
4a7371e9 | 997 | stream_putl(s, api_nh->vrf_id); |
bb1b9c47 RW |
998 | stream_putc(s, api_nh->type); |
999 | switch (api_nh->type) { | |
d62a17ae | 1000 | case NEXTHOP_TYPE_BLACKHOLE: |
94758e66 | 1001 | stream_putc(s, api_nh->bh_type); |
d62a17ae | 1002 | break; |
1003 | case NEXTHOP_TYPE_IPV4: | |
bb1b9c47 | 1004 | stream_put_in_addr(s, &api_nh->gate.ipv4); |
d62a17ae | 1005 | break; |
1006 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
bb1b9c47 RW |
1007 | stream_put_in_addr(s, &api_nh->gate.ipv4); |
1008 | stream_putl(s, api_nh->ifindex); | |
d62a17ae | 1009 | break; |
1010 | case NEXTHOP_TYPE_IFINDEX: | |
bb1b9c47 | 1011 | stream_putl(s, api_nh->ifindex); |
d62a17ae | 1012 | break; |
1013 | case NEXTHOP_TYPE_IPV6: | |
bb1b9c47 RW |
1014 | stream_write(s, (u_char *)&api_nh->gate.ipv6, |
1015 | 16); | |
d62a17ae | 1016 | break; |
1017 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
bb1b9c47 RW |
1018 | stream_write(s, (u_char *)&api_nh->gate.ipv6, |
1019 | 16); | |
1020 | stream_putl(s, api_nh->ifindex); | |
d62a17ae | 1021 | break; |
ec93aa12 | 1022 | default: |
996c9314 LB |
1023 | zlog_warn( |
1024 | "%s: Specified Nexthop type %d does not exist", | |
1025 | __PRETTY_FUNCTION__, api_nh->type); | |
ec93aa12 | 1026 | return -1; |
d62a17ae | 1027 | } |
bb1b9c47 | 1028 | |
52dd3aa4 RW |
1029 | /* MPLS labels for BGP-LU or Segment Routing */ |
1030 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) { | |
1031 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1032 | char buf[PREFIX2STR_BUFFER]; | |
1033 | prefix2str(&api->prefix, buf, | |
1034 | sizeof(buf)); | |
1035 | zlog_err( | |
1036 | "%s: prefix %s: can't encode " | |
1037 | "%u labels (maximum is %u)", | |
1038 | __func__, buf, | |
1039 | api_nh->label_num, | |
1040 | MPLS_MAX_LABELS); | |
1041 | return -1; | |
1042 | } | |
1043 | ||
1044 | stream_putc(s, api_nh->label_num); | |
1045 | stream_put(s, &api_nh->labels[0], | |
1046 | api_nh->label_num | |
1047 | * sizeof(mpls_label_t)); | |
1048 | } | |
d62a17ae | 1049 | } |
1050 | } | |
1051 | ||
0e51b4a3 | 1052 | /* Attributes. */ |
d62a17ae | 1053 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
1054 | stream_putc(s, api->distance); | |
1055 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
1056 | stream_putl(s, api->metric); | |
1057 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
1058 | stream_putl(s, api->tag); | |
1059 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
1060 | stream_putl(s, api->mtu); | |
ba1849ef DS |
1061 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1062 | stream_putl(s, api->tableid); | |
d62a17ae | 1063 | |
1064 | /* Put length at the first point of the stream. */ | |
1065 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1066 | ||
0e51b4a3 RW |
1067 | return 0; |
1068 | } | |
1069 | ||
1070 | int zapi_route_decode(struct stream *s, struct zapi_route *api) | |
1071 | { | |
1072 | struct zapi_nexthop *api_nh; | |
1073 | int i; | |
1074 | ||
1075 | memset(api, 0, sizeof(*api)); | |
1076 | ||
1077 | /* Type, flags, message. */ | |
ec93aa12 DS |
1078 | STREAM_GETC(s, api->type); |
1079 | if (api->type > ZEBRA_ROUTE_MAX) { | |
1080 | zlog_warn("%s: Specified route type: %d is not a legal value\n", | |
996c9314 | 1081 | __PRETTY_FUNCTION__, api->type); |
ec93aa12 DS |
1082 | return -1; |
1083 | } | |
1084 | ||
1085 | STREAM_GETW(s, api->instance); | |
1086 | STREAM_GETL(s, api->flags); | |
1087 | STREAM_GETC(s, api->message); | |
832d0f56 | 1088 | STREAM_GETC(s, api->safi); |
90264d64 | 1089 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) |
4ca997a8 | 1090 | STREAM_GET(&(api->rmac), s, sizeof(struct ethaddr)); |
0e51b4a3 RW |
1091 | |
1092 | /* Prefix. */ | |
ec93aa12 DS |
1093 | STREAM_GETC(s, api->prefix.family); |
1094 | STREAM_GETC(s, api->prefix.prefixlen); | |
0e51b4a3 RW |
1095 | switch (api->prefix.family) { |
1096 | case AF_INET: | |
ec93aa12 | 1097 | if (api->prefix.prefixlen > IPV4_MAX_PREFIXLEN) { |
996c9314 LB |
1098 | zlog_warn( |
1099 | "%s: V4 prefixlen is %d which should not be more than 32", | |
1100 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1101 | return -1; |
1102 | } | |
0e51b4a3 RW |
1103 | break; |
1104 | case AF_INET6: | |
ec93aa12 | 1105 | if (api->prefix.prefixlen > IPV6_MAX_PREFIXLEN) { |
996c9314 LB |
1106 | zlog_warn( |
1107 | "%s: v6 prefixlen is %d which should not be more than 128", | |
1108 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1109 | return -1; |
1110 | } | |
0e51b4a3 | 1111 | break; |
ec93aa12 DS |
1112 | default: |
1113 | zlog_warn("%s: Specified family %d is not v4 or v6", | |
1114 | __PRETTY_FUNCTION__, api->prefix.family); | |
1115 | return -1; | |
0e51b4a3 | 1116 | } |
ec93aa12 DS |
1117 | STREAM_GET(&api->prefix.u.prefix, s, PSIZE(api->prefix.prefixlen)); |
1118 | ||
0e51b4a3 RW |
1119 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { |
1120 | api->src_prefix.family = AF_INET6; | |
ec93aa12 DS |
1121 | STREAM_GETC(s, api->src_prefix.prefixlen); |
1122 | if (api->src_prefix.prefixlen > IPV6_MAX_PREFIXLEN) { | |
996c9314 LB |
1123 | zlog_warn( |
1124 | "%s: SRC Prefix prefixlen received: %d is too large", | |
1125 | __PRETTY_FUNCTION__, api->src_prefix.prefixlen); | |
ec93aa12 DS |
1126 | return -1; |
1127 | } | |
1128 | STREAM_GET(&api->src_prefix.prefix, s, | |
0e51b4a3 RW |
1129 | PSIZE(api->src_prefix.prefixlen)); |
1130 | ||
1131 | if (api->prefix.family != AF_INET6 | |
ec93aa12 | 1132 | || api->src_prefix.prefixlen == 0) { |
996c9314 LB |
1133 | zlog_warn( |
1134 | "%s: SRC prefix specified in some manner that makes no sense", | |
1135 | __PRETTY_FUNCTION__); | |
ec93aa12 DS |
1136 | return -1; |
1137 | } | |
0e51b4a3 RW |
1138 | } |
1139 | ||
1140 | /* Nexthops. */ | |
1141 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
ec93aa12 | 1142 | STREAM_GETW(s, api->nexthop_num); |
0e51b4a3 RW |
1143 | if (api->nexthop_num > MULTIPATH_NUM) { |
1144 | zlog_warn("%s: invalid number of nexthops (%u)", | |
1145 | __func__, api->nexthop_num); | |
1146 | return -1; | |
1147 | } | |
1148 | ||
1149 | for (i = 0; i < api->nexthop_num; i++) { | |
1150 | api_nh = &api->nexthops[i]; | |
1151 | ||
4a7371e9 | 1152 | STREAM_GETL(s, api_nh->vrf_id); |
ec93aa12 | 1153 | STREAM_GETC(s, api_nh->type); |
0e51b4a3 RW |
1154 | switch (api_nh->type) { |
1155 | case NEXTHOP_TYPE_BLACKHOLE: | |
ec93aa12 | 1156 | STREAM_GETC(s, api_nh->bh_type); |
0e51b4a3 RW |
1157 | break; |
1158 | case NEXTHOP_TYPE_IPV4: | |
ec93aa12 DS |
1159 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, |
1160 | IPV4_MAX_BYTELEN); | |
0e51b4a3 RW |
1161 | break; |
1162 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
ec93aa12 DS |
1163 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, |
1164 | IPV4_MAX_BYTELEN); | |
1165 | STREAM_GETL(s, api_nh->ifindex); | |
0e51b4a3 RW |
1166 | break; |
1167 | case NEXTHOP_TYPE_IFINDEX: | |
ec93aa12 | 1168 | STREAM_GETL(s, api_nh->ifindex); |
0e51b4a3 RW |
1169 | break; |
1170 | case NEXTHOP_TYPE_IPV6: | |
ec93aa12 | 1171 | STREAM_GET(&api_nh->gate.ipv6, s, 16); |
0e51b4a3 RW |
1172 | break; |
1173 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
ec93aa12 DS |
1174 | STREAM_GET(&api_nh->gate.ipv6, s, 16); |
1175 | STREAM_GETL(s, api_nh->ifindex); | |
0e51b4a3 | 1176 | break; |
ec93aa12 | 1177 | default: |
996c9314 LB |
1178 | zlog_warn( |
1179 | "%s: Specified nexthop type %d does not exist", | |
1180 | __PRETTY_FUNCTION__, api_nh->type); | |
ec93aa12 | 1181 | return -1; |
0e51b4a3 RW |
1182 | } |
1183 | ||
52dd3aa4 | 1184 | /* MPLS labels for BGP-LU or Segment Routing */ |
0e51b4a3 | 1185 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) { |
ec93aa12 | 1186 | STREAM_GETC(s, api_nh->label_num); |
52dd3aa4 RW |
1187 | |
1188 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1189 | zlog_warn( | |
1190 | "%s: invalid number of MPLS " | |
1191 | "labels (%u)", | |
1192 | __func__, api_nh->label_num); | |
1193 | return -1; | |
1194 | } | |
1195 | ||
ec93aa12 | 1196 | STREAM_GET(&api_nh->labels[0], s, |
52dd3aa4 RW |
1197 | api_nh->label_num |
1198 | * sizeof(mpls_label_t)); | |
0e51b4a3 RW |
1199 | } |
1200 | } | |
1201 | } | |
1202 | ||
1203 | /* Attributes. */ | |
1204 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
ec93aa12 | 1205 | STREAM_GETC(s, api->distance); |
0e51b4a3 | 1206 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) |
ec93aa12 | 1207 | STREAM_GETL(s, api->metric); |
0e51b4a3 | 1208 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) |
ec93aa12 | 1209 | STREAM_GETL(s, api->tag); |
0e51b4a3 | 1210 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) |
ec93aa12 | 1211 | STREAM_GETL(s, api->mtu); |
ba1849ef DS |
1212 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1213 | STREAM_GETL(s, api->tableid); | |
0e51b4a3 | 1214 | |
ec93aa12 | 1215 | stream_failure: |
0e51b4a3 | 1216 | return 0; |
657cde12 DS |
1217 | } |
1218 | ||
7ea7b86e | 1219 | bool zapi_route_notify_decode(struct stream *s, struct prefix *p, |
28610f7e | 1220 | uint32_t *tableid, |
7ea7b86e DS |
1221 | enum zapi_route_notify_owner *note) |
1222 | { | |
7a1eb44b DS |
1223 | uint32_t t; |
1224 | ||
7ea7b86e DS |
1225 | STREAM_GET(note, s, sizeof(*note)); |
1226 | ||
1227 | STREAM_GETC(s, p->family); | |
1228 | STREAM_GETC(s, p->prefixlen); | |
996c9314 | 1229 | STREAM_GET(&p->u.prefix, s, prefix_blen(p)); |
7a1eb44b DS |
1230 | STREAM_GETL(s, t); |
1231 | ||
1232 | *tableid = t; | |
7ea7b86e DS |
1233 | |
1234 | return true; | |
1235 | ||
1236 | stream_failure: | |
1237 | return false; | |
1238 | } | |
1239 | ||
b6c5d343 DS |
1240 | bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno, |
1241 | uint32_t *priority, uint32_t *unique, | |
1242 | ifindex_t *ifindex, | |
1243 | enum zapi_rule_notify_owner *note) | |
1244 | { | |
1245 | uint32_t prio, seq, uni; | |
1246 | ifindex_t ifi; | |
1247 | ||
1248 | STREAM_GET(note, s, sizeof(*note)); | |
1249 | ||
1250 | STREAM_GETL(s, seq); | |
1251 | STREAM_GETL(s, prio); | |
1252 | STREAM_GETL(s, uni); | |
1253 | STREAM_GETL(s, ifi); | |
1254 | ||
1255 | if (zclient_debug) | |
1256 | zlog_debug("%s: %u %u %u %u", __PRETTY_FUNCTION__, | |
1257 | seq, prio, uni, ifi); | |
1258 | *seqno = seq; | |
1259 | *priority = prio; | |
1260 | *unique = uni; | |
1261 | *ifindex = ifi; | |
1262 | ||
1263 | return true; | |
1264 | ||
1265 | stream_failure: | |
1266 | return false; | |
1267 | } | |
1268 | ||
4a749e2c DS |
1269 | struct nexthop *nexthop_from_zapi_nexthop(struct zapi_nexthop *znh) |
1270 | { | |
1271 | struct nexthop *n = nexthop_new(); | |
1272 | ||
1273 | n->type = znh->type; | |
4a7371e9 | 1274 | n->vrf_id = znh->vrf_id; |
4a749e2c DS |
1275 | n->ifindex = znh->ifindex; |
1276 | n->gate = znh->gate; | |
1277 | ||
1278 | /* | |
1279 | * This function does not currently handle labels | |
1280 | */ | |
1281 | ||
1282 | return n; | |
1283 | } | |
1284 | ||
1285 | bool zapi_nexthop_update_decode(struct stream *s, struct zapi_route *nhr) | |
1286 | { | |
1287 | uint32_t i; | |
1288 | ||
1289 | memset(nhr, 0, sizeof(*nhr)); | |
1290 | ||
1291 | STREAM_GETW(s, nhr->prefix.family); | |
1292 | STREAM_GETC(s, nhr->prefix.prefixlen); | |
996c9314 | 1293 | switch (nhr->prefix.family) { |
4a749e2c DS |
1294 | case AF_INET: |
1295 | STREAM_GET(&nhr->prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1296 | break; | |
1297 | case AF_INET6: | |
1298 | STREAM_GET(&nhr->prefix.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1299 | break; | |
1300 | default: | |
1301 | break; | |
1302 | } | |
1303 | ||
05dd5aaf DS |
1304 | STREAM_GETC(s, nhr->type); |
1305 | STREAM_GETW(s, nhr->instance); | |
4a749e2c DS |
1306 | STREAM_GETC(s, nhr->distance); |
1307 | STREAM_GETL(s, nhr->metric); | |
1308 | STREAM_GETC(s, nhr->nexthop_num); | |
1309 | ||
996c9314 | 1310 | for (i = 0; i < nhr->nexthop_num; i++) { |
4a749e2c DS |
1311 | STREAM_GETC(s, nhr->nexthops[i].type); |
1312 | switch (nhr->nexthops[i].type) { | |
1313 | case NEXTHOP_TYPE_IPV4: | |
1314 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
996c9314 LB |
1315 | STREAM_GET(&nhr->nexthops[i].gate.ipv4.s_addr, s, |
1316 | IPV4_MAX_BYTELEN); | |
4a749e2c DS |
1317 | STREAM_GETL(s, nhr->nexthops[i].ifindex); |
1318 | break; | |
1319 | case NEXTHOP_TYPE_IFINDEX: | |
1320 | STREAM_GETL(s, nhr->nexthops[i].ifindex); | |
1321 | break; | |
1322 | case NEXTHOP_TYPE_IPV6: | |
1323 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
996c9314 LB |
1324 | STREAM_GET(&nhr->nexthops[i].gate.ipv6, s, |
1325 | IPV6_MAX_BYTELEN); | |
4a749e2c DS |
1326 | STREAM_GETL(s, nhr->nexthops[i].ifindex); |
1327 | break; | |
1328 | case NEXTHOP_TYPE_BLACKHOLE: | |
1329 | break; | |
1330 | } | |
1331 | } | |
1332 | ||
1333 | return true; | |
1334 | stream_failure: | |
1335 | return false; | |
1336 | } | |
1337 | ||
d62a17ae | 1338 | /* |
0a589359 | 1339 | * send a ZEBRA_REDISTRIBUTE_ADD or ZEBRA_REDISTRIBUTE_DELETE |
1340 | * for the route type (ZEBRA_ROUTE_KERNEL etc.). The zebra server will | |
d62a17ae | 1341 | * then set/unset redist[type] in the client handle (a struct zserv) for the |
0a589359 | 1342 | * sending client |
1343 | */ | |
d62a17ae | 1344 | int zebra_redistribute_send(int command, struct zclient *zclient, afi_t afi, |
1345 | int type, u_short instance, vrf_id_t vrf_id) | |
718e3744 | 1346 | { |
d62a17ae | 1347 | struct stream *s; |
1348 | ||
1349 | s = zclient->obuf; | |
1350 | stream_reset(s); | |
1351 | ||
1352 | zclient_create_header(s, command, vrf_id); | |
1353 | stream_putc(s, afi); | |
1354 | stream_putc(s, type); | |
1355 | stream_putw(s, instance); | |
1356 | ||
1357 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1358 | ||
1359 | return zclient_send_message(zclient); | |
718e3744 | 1360 | } |
1361 | ||
d9178828 | 1362 | /* Get prefix in ZServ format; family should be filled in on prefix */ |
d62a17ae | 1363 | static void zclient_stream_get_prefix(struct stream *s, struct prefix *p) |
d9178828 | 1364 | { |
d62a17ae | 1365 | size_t plen = prefix_blen(p); |
1366 | u_char c; | |
1367 | p->prefixlen = 0; | |
1368 | ||
1369 | if (plen == 0) | |
1370 | return; | |
1371 | ||
1372 | stream_get(&p->u.prefix, s, plen); | |
ec93aa12 | 1373 | STREAM_GETC(s, c); |
d62a17ae | 1374 | p->prefixlen = MIN(plen * 8, c); |
ec93aa12 DS |
1375 | |
1376 | stream_failure: | |
1377 | return; | |
d9178828 PJ |
1378 | } |
1379 | ||
18a6dce6 | 1380 | /* Router-id update from zebra daemon. */ |
d62a17ae | 1381 | void zebra_router_id_update_read(struct stream *s, struct prefix *rid) |
18a6dce6 | 1382 | { |
d62a17ae | 1383 | /* Fetch interface address. */ |
ec93aa12 | 1384 | STREAM_GETC(s, rid->family); |
d62a17ae | 1385 | |
1386 | zclient_stream_get_prefix(s, rid); | |
ec93aa12 DS |
1387 | |
1388 | stream_failure: | |
1389 | return; | |
18a6dce6 | 1390 | } |
1391 | ||
718e3744 | 1392 | /* Interface addition from zebra daemon. */ |
d62a17ae | 1393 | /* |
0a589359 | 1394 | * The format of the message sent with type ZEBRA_INTERFACE_ADD or |
1395 | * ZEBRA_INTERFACE_DELETE from zebra to the client is: | |
1396 | * 0 1 2 3 | |
1397 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |
0a589359 | 1398 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1399 | * | ifname | | |
1400 | * | | | |
1401 | * | | | |
1402 | * | | | |
1403 | * | | | |
1404 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1405 | * | ifindex | |
1406 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1407 | * | status | | |
0a589359 | 1408 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1409 | * | if_flags | |
c77d4546 | 1410 | * | | |
0a589359 | 1411 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1412 | * | metric | |
1413 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2d7f0d76 DS |
1414 | * | speed | |
1415 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1416 | * | ifmtu | |
1417 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1418 | * | ifmtu6 | | |
1419 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1420 | * | bandwidth | | |
1421 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1422 | * | Link Layer Type | | |
0a589359 | 1423 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1424 | * | Harware Address Length | |
0a589359 | 1425 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1426 | * | Hardware Address if HW lenght different from 0 | |
1427 | * | ... max INTERFACE_HWADDR_MAX | | |
0a589359 | 1428 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1429 | * | Link_params? | Whether a link-params follows: 1 or 0. |
0a589359 | 1430 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1431 | * | Link_params 0 or 1 INTERFACE_LINK_PARAMS_SIZE sized | |
1432 | * | .... (struct if_link_params). | | |
0a589359 | 1433 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1434 | */ | |
1435 | ||
d62a17ae | 1436 | static void zclient_vrf_add(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1437 | { |
d62a17ae | 1438 | struct vrf *vrf; |
1439 | char vrfname_tmp[VRF_NAMSIZ]; | |
1440 | struct vrf_data data; | |
1892f15e | 1441 | |
d62a17ae | 1442 | stream_get(&data, zclient->ibuf, sizeof(struct vrf_data)); |
1443 | /* Read interface name. */ | |
1444 | stream_get(vrfname_tmp, zclient->ibuf, VRF_NAMSIZ); | |
1892f15e | 1445 | |
d62a17ae | 1446 | /* Lookup/create vrf by vrf_id. */ |
1447 | vrf = vrf_get(vrf_id, vrfname_tmp); | |
4691b65a PG |
1448 | vrf->data.l.table_id = data.l.table_id; |
1449 | memcpy(vrf->data.l.netns_name, data.l.netns_name, NS_NAMSIZ); | |
d62a17ae | 1450 | vrf_enable(vrf); |
1892f15e DS |
1451 | } |
1452 | ||
d62a17ae | 1453 | static void zclient_vrf_delete(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1454 | { |
d62a17ae | 1455 | struct vrf *vrf; |
1892f15e | 1456 | |
d62a17ae | 1457 | /* Lookup vrf by vrf_id. */ |
1458 | vrf = vrf_lookup_by_id(vrf_id); | |
1892f15e | 1459 | |
d62a17ae | 1460 | /* |
1461 | * If a routing protocol doesn't know about a | |
1462 | * vrf that is about to be deleted. There is | |
1463 | * no point in attempting to delete it. | |
1464 | */ | |
1465 | if (!vrf) | |
1466 | return; | |
beef1990 | 1467 | |
d62a17ae | 1468 | vrf_delete(vrf); |
1892f15e DS |
1469 | } |
1470 | ||
d62a17ae | 1471 | struct interface *zebra_interface_add_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1472 | { |
d62a17ae | 1473 | struct interface *ifp; |
1474 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
718e3744 | 1475 | |
d62a17ae | 1476 | /* Read interface name. */ |
1477 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
718e3744 | 1478 | |
d62a17ae | 1479 | /* Lookup/create interface by name. */ |
bcc24579 | 1480 | ifp = if_get_by_name(ifname_tmp, vrf_id, 0); |
718e3744 | 1481 | |
d62a17ae | 1482 | zebra_interface_if_set_value(s, ifp); |
718e3744 | 1483 | |
d62a17ae | 1484 | return ifp; |
718e3744 | 1485 | } |
1486 | ||
d62a17ae | 1487 | /* |
0a589359 | 1488 | * Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN) |
1489 | * from zebra server. The format of this message is the same as | |
1490 | * that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE (see | |
1491 | * comments for zebra_interface_add_read), except that no sockaddr_dl | |
1492 | * is sent at the tail of the message. | |
1493 | */ | |
d62a17ae | 1494 | struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1495 | { |
d62a17ae | 1496 | struct interface *ifp; |
1497 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
1498 | ||
1499 | /* Read interface name. */ | |
1500 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
1501 | ||
1502 | /* Lookup this by interface index. */ | |
bcc24579 | 1503 | ifp = if_lookup_by_name(ifname_tmp, vrf_id); |
d62a17ae | 1504 | if (ifp == NULL) { |
1505 | zlog_warn("INTERFACE_STATE: Cannot find IF %s in VRF %d", | |
1506 | ifname_tmp, vrf_id); | |
1507 | return NULL; | |
1508 | } | |
1509 | ||
1510 | zebra_interface_if_set_value(s, ifp); | |
1511 | ||
1512 | return ifp; | |
718e3744 | 1513 | } |
1514 | ||
d62a17ae | 1515 | static void link_params_set_value(struct stream *s, struct if_link_params *iflp) |
16f1b9ee OD |
1516 | { |
1517 | ||
d62a17ae | 1518 | if (iflp == NULL) |
1519 | return; | |
1520 | ||
1521 | iflp->lp_status = stream_getl(s); | |
1522 | iflp->te_metric = stream_getl(s); | |
1523 | iflp->max_bw = stream_getf(s); | |
1524 | iflp->max_rsv_bw = stream_getf(s); | |
1525 | uint32_t bwclassnum = stream_getl(s); | |
1526 | { | |
1527 | unsigned int i; | |
1528 | for (i = 0; i < bwclassnum && i < MAX_CLASS_TYPE; i++) | |
1529 | iflp->unrsv_bw[i] = stream_getf(s); | |
1530 | if (i < bwclassnum) | |
1531 | zlog_err( | |
1532 | "%s: received %d > %d (MAX_CLASS_TYPE) bw entries" | |
1533 | " - outdated library?", | |
1534 | __func__, bwclassnum, MAX_CLASS_TYPE); | |
1535 | } | |
1536 | iflp->admin_grp = stream_getl(s); | |
1537 | iflp->rmt_as = stream_getl(s); | |
1538 | iflp->rmt_ip.s_addr = stream_get_ipv4(s); | |
1539 | ||
1540 | iflp->av_delay = stream_getl(s); | |
1541 | iflp->min_delay = stream_getl(s); | |
1542 | iflp->max_delay = stream_getl(s); | |
1543 | iflp->delay_var = stream_getl(s); | |
1544 | ||
1545 | iflp->pkt_loss = stream_getf(s); | |
1546 | iflp->res_bw = stream_getf(s); | |
1547 | iflp->ava_bw = stream_getf(s); | |
1548 | iflp->use_bw = stream_getf(s); | |
16f1b9ee OD |
1549 | } |
1550 | ||
d62a17ae | 1551 | struct interface *zebra_interface_link_params_read(struct stream *s) |
16f1b9ee | 1552 | { |
d62a17ae | 1553 | struct if_link_params *iflp; |
1554 | ifindex_t ifindex; | |
c28e5b2a | 1555 | |
d62a17ae | 1556 | assert(s); |
c28e5b2a | 1557 | |
d62a17ae | 1558 | ifindex = stream_getl(s); |
16f1b9ee | 1559 | |
d62a17ae | 1560 | struct interface *ifp = if_lookup_by_index(ifindex, VRF_DEFAULT); |
16f1b9ee | 1561 | |
d62a17ae | 1562 | if (ifp == NULL) { |
1563 | zlog_err("%s: unknown ifindex %u, shouldn't happen", __func__, | |
1564 | ifindex); | |
1565 | return NULL; | |
1566 | } | |
16f1b9ee | 1567 | |
d62a17ae | 1568 | if ((iflp = if_link_params_get(ifp)) == NULL) |
1569 | return NULL; | |
16f1b9ee | 1570 | |
d62a17ae | 1571 | link_params_set_value(s, iflp); |
16f1b9ee | 1572 | |
d62a17ae | 1573 | return ifp; |
16f1b9ee OD |
1574 | } |
1575 | ||
d62a17ae | 1576 | void zebra_interface_if_set_value(struct stream *s, struct interface *ifp) |
16f1b9ee | 1577 | { |
d62a17ae | 1578 | u_char link_params_status = 0; |
1579 | ||
1580 | /* Read interface's index. */ | |
ff880b78 | 1581 | if_set_index(ifp, stream_getl(s)); |
d62a17ae | 1582 | ifp->status = stream_getc(s); |
1583 | ||
1584 | /* Read interface's value. */ | |
1585 | ifp->flags = stream_getq(s); | |
1586 | ifp->ptm_enable = stream_getc(s); | |
1587 | ifp->ptm_status = stream_getc(s); | |
1588 | ifp->metric = stream_getl(s); | |
1589 | ifp->speed = stream_getl(s); | |
1590 | ifp->mtu = stream_getl(s); | |
1591 | ifp->mtu6 = stream_getl(s); | |
1592 | ifp->bandwidth = stream_getl(s); | |
1593 | ifp->ll_type = stream_getl(s); | |
1594 | ifp->hw_addr_len = stream_getl(s); | |
1595 | if (ifp->hw_addr_len) | |
1596 | stream_get(ifp->hw_addr, s, | |
1597 | MIN(ifp->hw_addr_len, INTERFACE_HWADDR_MAX)); | |
1598 | ||
1599 | /* Read Traffic Engineering status */ | |
1600 | link_params_status = stream_getc(s); | |
1601 | /* Then, Traffic Engineering parameters if any */ | |
1602 | if (link_params_status) { | |
1603 | struct if_link_params *iflp = if_link_params_get(ifp); | |
1604 | link_params_set_value(s, iflp); | |
1605 | } | |
16f1b9ee OD |
1606 | } |
1607 | ||
d62a17ae | 1608 | size_t zebra_interface_link_params_write(struct stream *s, |
1609 | struct interface *ifp) | |
16f1b9ee | 1610 | { |
d62a17ae | 1611 | size_t w; |
1612 | struct if_link_params *iflp; | |
1613 | int i; | |
16f1b9ee | 1614 | |
d62a17ae | 1615 | if (s == NULL || ifp == NULL || ifp->link_params == NULL) |
1616 | return 0; | |
16f1b9ee | 1617 | |
d62a17ae | 1618 | iflp = ifp->link_params; |
1619 | w = 0; | |
16f1b9ee | 1620 | |
d62a17ae | 1621 | w += stream_putl(s, iflp->lp_status); |
16f1b9ee | 1622 | |
d62a17ae | 1623 | w += stream_putl(s, iflp->te_metric); |
1624 | w += stream_putf(s, iflp->max_bw); | |
1625 | w += stream_putf(s, iflp->max_rsv_bw); | |
16f1b9ee | 1626 | |
d62a17ae | 1627 | w += stream_putl(s, MAX_CLASS_TYPE); |
1628 | for (i = 0; i < MAX_CLASS_TYPE; i++) | |
1629 | w += stream_putf(s, iflp->unrsv_bw[i]); | |
16f1b9ee | 1630 | |
d62a17ae | 1631 | w += stream_putl(s, iflp->admin_grp); |
1632 | w += stream_putl(s, iflp->rmt_as); | |
1633 | w += stream_put_in_addr(s, &iflp->rmt_ip); | |
16f1b9ee | 1634 | |
d62a17ae | 1635 | w += stream_putl(s, iflp->av_delay); |
1636 | w += stream_putl(s, iflp->min_delay); | |
1637 | w += stream_putl(s, iflp->max_delay); | |
1638 | w += stream_putl(s, iflp->delay_var); | |
16f1b9ee | 1639 | |
d62a17ae | 1640 | w += stream_putf(s, iflp->pkt_loss); |
1641 | w += stream_putf(s, iflp->res_bw); | |
1642 | w += stream_putf(s, iflp->ava_bw); | |
1643 | w += stream_putf(s, iflp->use_bw); | |
16f1b9ee | 1644 | |
d62a17ae | 1645 | return w; |
16f1b9ee OD |
1646 | } |
1647 | ||
1648 | /* | |
0a589359 | 1649 | * format of message for address additon is: |
1650 | * 0 | |
1651 | * 0 1 2 3 4 5 6 7 | |
1652 | * +-+-+-+-+-+-+-+-+ | |
1653 | * | type | ZEBRA_INTERFACE_ADDRESS_ADD or | |
1654 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_ADDRES_DELETE | |
1655 | * | | | |
1656 | * + + | |
1657 | * | ifindex | | |
1658 | * + + | |
1659 | * | | | |
1660 | * + + | |
1661 | * | | | |
1662 | * +-+-+-+-+-+-+-+-+ | |
1663 | * | ifc_flags | flags for connected address | |
1664 | * +-+-+-+-+-+-+-+-+ | |
1665 | * | addr_family | | |
1666 | * +-+-+-+-+-+-+-+-+ | |
1667 | * | addr... | | |
1668 | * : : | |
1669 | * | | | |
1670 | * +-+-+-+-+-+-+-+-+ | |
1671 | * | addr_len | len of addr. E.g., addr_len = 4 for ipv4 addrs. | |
1672 | * +-+-+-+-+-+-+-+-+ | |
1673 | * | daddr.. | | |
1674 | * : : | |
1675 | * | | | |
1676 | * +-+-+-+-+-+-+-+-+ | |
0a589359 | 1677 | */ |
1678 | ||
d62a17ae | 1679 | static int memconstant(const void *s, int c, size_t n) |
3fb9cd6e | 1680 | { |
d62a17ae | 1681 | const u_char *p = s; |
3fb9cd6e | 1682 | |
d62a17ae | 1683 | while (n-- > 0) |
1684 | if (*p++ != c) | |
1685 | return 0; | |
1686 | return 1; | |
3fb9cd6e | 1687 | } |
1688 | ||
d5a5c8f0 | 1689 | |
d62a17ae | 1690 | struct connected *zebra_interface_address_read(int type, struct stream *s, |
1691 | vrf_id_t vrf_id) | |
718e3744 | 1692 | { |
d62a17ae | 1693 | ifindex_t ifindex; |
1694 | struct interface *ifp; | |
1695 | struct connected *ifc; | |
1696 | struct prefix p, d, *dp; | |
1697 | int plen; | |
1698 | u_char ifc_flags; | |
1699 | ||
1700 | memset(&p, 0, sizeof(p)); | |
1701 | memset(&d, 0, sizeof(d)); | |
1702 | ||
1703 | /* Get interface index. */ | |
1704 | ifindex = stream_getl(s); | |
1705 | ||
1706 | /* Lookup index. */ | |
1707 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1708 | if (ifp == NULL) { | |
1709 | zlog_warn("INTERFACE_ADDRESS_%s: Cannot find IF %u in VRF %d", | |
1710 | (type == ZEBRA_INTERFACE_ADDRESS_ADD) ? "ADD" : "DEL", | |
1711 | ifindex, vrf_id); | |
1712 | return NULL; | |
1713 | } | |
1714 | ||
1715 | /* Fetch flag. */ | |
1716 | ifc_flags = stream_getc(s); | |
1717 | ||
1718 | /* Fetch interface address. */ | |
1719 | d.family = p.family = stream_getc(s); | |
1720 | plen = prefix_blen(&d); | |
1721 | ||
1722 | zclient_stream_get_prefix(s, &p); | |
1723 | ||
1724 | /* Fetch destination address. */ | |
1725 | stream_get(&d.u.prefix, s, plen); | |
1726 | ||
1727 | /* N.B. NULL destination pointers are encoded as all zeroes */ | |
1728 | dp = memconstant(&d.u.prefix, 0, plen) ? NULL : &d; | |
1729 | ||
1730 | if (type == ZEBRA_INTERFACE_ADDRESS_ADD) { | |
1731 | ifc = connected_lookup_prefix_exact(ifp, &p); | |
1732 | if (!ifc) { | |
1733 | /* N.B. NULL destination pointers are encoded as all | |
1734 | * zeroes */ | |
1735 | ifc = connected_add_by_prefix(ifp, &p, dp); | |
1736 | } | |
1737 | if (ifc) { | |
1738 | ifc->flags = ifc_flags; | |
1739 | if (ifc->destination) | |
1740 | ifc->destination->prefixlen = | |
1741 | ifc->address->prefixlen; | |
1742 | else if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { | |
1743 | /* carp interfaces on OpenBSD with 0.0.0.0/0 as | |
1744 | * "peer" */ | |
1745 | char buf[PREFIX_STRLEN]; | |
1746 | zlog_warn( | |
1747 | "warning: interface %s address %s " | |
1748 | "with peer flag set, but no peer address!", | |
9d303b37 DL |
1749 | ifp->name, prefix2str(ifc->address, buf, |
1750 | sizeof buf)); | |
d62a17ae | 1751 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); |
1752 | } | |
1753 | } | |
1754 | } else { | |
1755 | assert(type == ZEBRA_INTERFACE_ADDRESS_DELETE); | |
1756 | ifc = connected_delete_by_prefix(ifp, &p); | |
1757 | } | |
1758 | ||
1759 | return ifc; | |
718e3744 | 1760 | } |
0a589359 | 1761 | |
a80beece DS |
1762 | /* |
1763 | * format of message for neighbor connected address is: | |
1764 | * 0 | |
1765 | * 0 1 2 3 4 5 6 7 | |
1766 | * +-+-+-+-+-+-+-+-+ | |
1767 | * | type | ZEBRA_INTERFACE_NBR_ADDRESS_ADD or | |
1768 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_NBR_ADDRES_DELETE | |
1769 | * | | | |
1770 | * + + | |
1771 | * | ifindex | | |
1772 | * + + | |
1773 | * | | | |
1774 | * + + | |
1775 | * | | | |
1776 | * +-+-+-+-+-+-+-+-+ | |
1777 | * | addr_family | | |
1778 | * +-+-+-+-+-+-+-+-+ | |
1779 | * | addr... | | |
1780 | * : : | |
1781 | * | | | |
1782 | * +-+-+-+-+-+-+-+-+ | |
1783 | * | addr_len | len of addr. | |
1784 | * +-+-+-+-+-+-+-+-+ | |
1785 | */ | |
1786 | struct nbr_connected * | |
d62a17ae | 1787 | zebra_interface_nbr_address_read(int type, struct stream *s, vrf_id_t vrf_id) |
a80beece | 1788 | { |
d62a17ae | 1789 | unsigned int ifindex; |
1790 | struct interface *ifp; | |
1791 | struct prefix p; | |
1792 | struct nbr_connected *ifc; | |
1793 | ||
1794 | /* Get interface index. */ | |
1795 | ifindex = stream_getl(s); | |
1796 | ||
1797 | /* Lookup index. */ | |
1798 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1799 | if (ifp == NULL) { | |
1800 | zlog_warn("INTERFACE_NBR_%s: Cannot find IF %u in VRF %d", | |
1801 | (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) ? "ADD" | |
1802 | : "DELETE", | |
1803 | ifindex, vrf_id); | |
1804 | return NULL; | |
1805 | } | |
1806 | ||
1807 | p.family = stream_getc(s); | |
1808 | stream_get(&p.u.prefix, s, prefix_blen(&p)); | |
1809 | p.prefixlen = stream_getc(s); | |
1810 | ||
1811 | if (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) { | |
1812 | /* Currently only supporting P2P links, so any new RA source | |
1813 | address is | |
1814 | considered as the replacement of the previously learnt | |
1815 | Link-Local address. */ | |
1816 | if (!(ifc = listnode_head(ifp->nbr_connected))) { | |
1817 | ifc = nbr_connected_new(); | |
1818 | ifc->address = prefix_new(); | |
1819 | ifc->ifp = ifp; | |
1820 | listnode_add(ifp->nbr_connected, ifc); | |
1821 | } | |
1822 | ||
1823 | prefix_copy(ifc->address, &p); | |
1824 | } else { | |
1825 | assert(type == ZEBRA_INTERFACE_NBR_ADDRESS_DELETE); | |
1826 | ||
1827 | ifc = nbr_connected_check(ifp, &p); | |
1828 | if (ifc) | |
1829 | listnode_delete(ifp->nbr_connected, ifc); | |
1830 | } | |
1831 | ||
1832 | return ifc; | |
a80beece | 1833 | } |
6b0655a2 | 1834 | |
d62a17ae | 1835 | struct interface *zebra_interface_vrf_update_read(struct stream *s, |
1836 | vrf_id_t vrf_id, | |
1837 | vrf_id_t *new_vrf_id) | |
c8e264b6 | 1838 | { |
d62a17ae | 1839 | unsigned int ifindex; |
1840 | struct interface *ifp; | |
a9ff90c4 | 1841 | vrf_id_t new_id; |
d62a17ae | 1842 | |
1843 | /* Get interface index. */ | |
1844 | ifindex = stream_getl(s); | |
1845 | ||
1846 | /* Lookup interface. */ | |
1847 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1848 | if (ifp == NULL) { | |
1849 | zlog_warn("INTERFACE_VRF_UPDATE: Cannot find IF %u in VRF %d", | |
1850 | ifindex, vrf_id); | |
1851 | return NULL; | |
1852 | } | |
1853 | ||
1854 | /* Fetch new VRF Id. */ | |
1855 | new_id = stream_getw(s); | |
1856 | ||
1857 | *new_vrf_id = new_id; | |
1858 | return ifp; | |
c8e264b6 | 1859 | } |
5c7ef8dc | 1860 | |
1861 | /* filter unwanted messages until the expected one arrives */ | |
d62a17ae | 1862 | static int zclient_read_sync_response(struct zclient *zclient, |
1863 | u_int16_t expected_cmd) | |
5c7ef8dc | 1864 | { |
d62a17ae | 1865 | struct stream *s; |
c31a793b | 1866 | u_int16_t size = -1; |
d62a17ae | 1867 | u_char marker; |
1868 | u_char version; | |
1869 | vrf_id_t vrf_id; | |
1870 | u_int16_t cmd; | |
1871 | fd_set readfds; | |
1872 | int ret; | |
1873 | ||
1874 | ret = 0; | |
1875 | cmd = expected_cmd + 1; | |
1876 | while (ret == 0 && cmd != expected_cmd) { | |
1877 | s = zclient->ibuf; | |
1878 | stream_reset(s); | |
1879 | ||
1880 | /* wait until response arrives */ | |
1881 | FD_ZERO(&readfds); | |
1882 | FD_SET(zclient->sock, &readfds); | |
1883 | select(zclient->sock + 1, &readfds, NULL, NULL, NULL); | |
1884 | if (!FD_ISSET(zclient->sock, &readfds)) | |
1885 | continue; | |
1886 | /* read response */ | |
1887 | ret = zclient_read_header(s, zclient->sock, &size, &marker, | |
1888 | &version, &vrf_id, &cmd); | |
1889 | if (zclient_debug) | |
1890 | zlog_debug("%s: Response (%d bytes) received", __func__, | |
1891 | size); | |
1892 | } | |
1893 | if (ret != 0) { | |
1894 | zlog_err("%s: Invalid Sync Message Reply", __func__); | |
1895 | return -1; | |
1896 | } | |
1897 | ||
1898 | return 0; | |
5c7ef8dc | 1899 | } |
fea12efb | 1900 | /** |
1901 | * Connect to label manager in a syncronous way | |
1902 | * | |
1903 | * It first writes the request to zcient output buffer and then | |
1904 | * immediately reads the answer from the input buffer. | |
1905 | * | |
1906 | * @param zclient Zclient used to connect to label manager (zebra) | |
1907 | * @result Result of response | |
1908 | */ | |
d62a17ae | 1909 | int lm_label_manager_connect(struct zclient *zclient) |
fea12efb | 1910 | { |
d62a17ae | 1911 | int ret; |
1912 | struct stream *s; | |
1913 | u_char result; | |
1914 | ||
1915 | if (zclient_debug) | |
1916 | zlog_debug("Connecting to Label Manager"); | |
1917 | ||
1918 | if (zclient->sock < 0) | |
1919 | return -1; | |
1920 | ||
1921 | /* send request */ | |
1922 | s = zclient->obuf; | |
1923 | stream_reset(s); | |
1924 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, VRF_DEFAULT); | |
1925 | ||
1926 | /* proto */ | |
1927 | stream_putc(s, zclient->redist_default); | |
1928 | /* instance */ | |
1929 | stream_putw(s, zclient->instance); | |
1930 | ||
1931 | /* Put length at the first point of the stream. */ | |
1932 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1933 | ||
1934 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
1935 | if (ret < 0) { | |
1936 | zlog_err("%s: can't write to zclient->sock", __func__); | |
1937 | close(zclient->sock); | |
1938 | zclient->sock = -1; | |
1939 | return -1; | |
1940 | } | |
1941 | if (ret == 0) { | |
1942 | zlog_err("%s: zclient->sock connection closed", __func__); | |
1943 | close(zclient->sock); | |
1944 | zclient->sock = -1; | |
1945 | return -1; | |
1946 | } | |
1947 | if (zclient_debug) | |
1948 | zlog_debug("%s: Label manager connect request (%d bytes) sent", | |
1949 | __func__, ret); | |
1950 | ||
1951 | /* read response */ | |
1952 | if (zclient_read_sync_response(zclient, ZEBRA_LABEL_MANAGER_CONNECT) | |
1953 | != 0) | |
1954 | return -1; | |
1955 | ||
1956 | /* result */ | |
1957 | s = zclient->ibuf; | |
1958 | result = stream_getc(s); | |
1959 | if (zclient_debug) | |
1960 | zlog_debug( | |
1961 | "%s: Label Manager connect response received, result %u", | |
1962 | __func__, result); | |
1963 | ||
1964 | return (int)result; | |
fea12efb | 1965 | } |
1966 | ||
1967 | /** | |
1968 | * Function to request a label chunk in a syncronous way | |
1969 | * | |
1970 | * It first writes the request to zlcient output buffer and then | |
1971 | * immediately reads the answer from the input buffer. | |
1972 | * | |
1973 | * @param zclient Zclient used to connect to label manager (zebra) | |
1974 | * @param keep Avoid garbage collection | |
1975 | * @param chunk_size Amount of labels requested | |
1976 | * @param start To write first assigned chunk label to | |
1977 | * @param end To write last assigned chunk label to | |
1978 | * @result 0 on success, -1 otherwise | |
1979 | */ | |
d62a17ae | 1980 | int lm_get_label_chunk(struct zclient *zclient, u_char keep, |
1981 | uint32_t chunk_size, uint32_t *start, uint32_t *end) | |
fea12efb | 1982 | { |
d62a17ae | 1983 | int ret; |
1984 | struct stream *s; | |
1985 | u_char response_keep; | |
1986 | ||
1987 | if (zclient_debug) | |
1988 | zlog_debug("Getting Label Chunk"); | |
1989 | ||
1990 | if (zclient->sock < 0) | |
1991 | return -1; | |
1992 | ||
1993 | /* send request */ | |
1994 | s = zclient->obuf; | |
1995 | stream_reset(s); | |
1996 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
1997 | /* keep */ | |
1998 | stream_putc(s, keep); | |
1999 | /* chunk size */ | |
2000 | stream_putl(s, chunk_size); | |
2001 | /* Put length at the first point of the stream. */ | |
2002 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2003 | ||
2004 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2005 | if (ret < 0) { | |
2006 | zlog_err("%s: can't write to zclient->sock", __func__); | |
2007 | close(zclient->sock); | |
2008 | zclient->sock = -1; | |
2009 | return -1; | |
2010 | } | |
2011 | if (ret == 0) { | |
2012 | zlog_err("%s: zclient->sock connection closed", __func__); | |
2013 | close(zclient->sock); | |
2014 | zclient->sock = -1; | |
2015 | return -1; | |
2016 | } | |
2017 | if (zclient_debug) | |
2018 | zlog_debug("%s: Label chunk request (%d bytes) sent", __func__, | |
2019 | ret); | |
2020 | ||
2021 | /* read response */ | |
2022 | if (zclient_read_sync_response(zclient, ZEBRA_GET_LABEL_CHUNK) != 0) | |
2023 | return -1; | |
2024 | ||
2025 | s = zclient->ibuf; | |
2026 | /* keep */ | |
2027 | response_keep = stream_getc(s); | |
2028 | /* start and end labels */ | |
2029 | *start = stream_getl(s); | |
2030 | *end = stream_getl(s); | |
2031 | ||
2032 | /* not owning this response */ | |
2033 | if (keep != response_keep) { | |
2034 | zlog_err( | |
2035 | "%s: Invalid Label chunk: %u - %u, keeps mismatch %u != %u", | |
2036 | __func__, *start, *end, keep, response_keep); | |
2037 | } | |
2038 | /* sanity */ | |
70e98a7f DS |
2039 | if (*start > *end || *start < MPLS_LABEL_UNRESERVED_MIN |
2040 | || *end > MPLS_LABEL_UNRESERVED_MAX) { | |
d62a17ae | 2041 | zlog_err("%s: Invalid Label chunk: %u - %u", __func__, *start, |
2042 | *end); | |
2043 | return -1; | |
2044 | } | |
2045 | ||
2046 | if (zclient_debug) | |
2047 | zlog_debug("Label Chunk assign: %u - %u (%u) ", *start, *end, | |
2048 | response_keep); | |
2049 | ||
2050 | return 0; | |
fea12efb | 2051 | } |
2052 | ||
2053 | /** | |
2054 | * Function to release a label chunk | |
2055 | * | |
2056 | * @param zclient Zclient used to connect to label manager (zebra) | |
2057 | * @param start First label of chunk | |
2058 | * @param end Last label of chunk | |
2059 | * @result 0 on success, -1 otherwise | |
2060 | */ | |
d62a17ae | 2061 | int lm_release_label_chunk(struct zclient *zclient, uint32_t start, |
2062 | uint32_t end) | |
fea12efb | 2063 | { |
d62a17ae | 2064 | int ret; |
2065 | struct stream *s; | |
2066 | ||
2067 | if (zclient_debug) | |
2068 | zlog_debug("Releasing Label Chunk"); | |
2069 | ||
2070 | if (zclient->sock < 0) | |
2071 | return -1; | |
2072 | ||
2073 | /* send request */ | |
2074 | s = zclient->obuf; | |
2075 | stream_reset(s); | |
2076 | zclient_create_header(s, ZEBRA_RELEASE_LABEL_CHUNK, VRF_DEFAULT); | |
2077 | ||
2078 | /* start */ | |
2079 | stream_putl(s, start); | |
2080 | /* end */ | |
2081 | stream_putl(s, end); | |
2082 | ||
2083 | /* Put length at the first point of the stream. */ | |
2084 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2085 | ||
2086 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2087 | if (ret < 0) { | |
2088 | zlog_err("%s: can't write to zclient->sock", __func__); | |
2089 | close(zclient->sock); | |
2090 | zclient->sock = -1; | |
2091 | return -1; | |
2092 | } | |
2093 | if (ret == 0) { | |
2094 | zlog_err("%s: zclient->sock connection closed", __func__); | |
2095 | close(zclient->sock); | |
2096 | zclient->sock = -1; | |
2097 | return -1; | |
2098 | } | |
2099 | ||
2100 | return 0; | |
fea12efb | 2101 | } |
c8e264b6 | 2102 | |
6833ae01 | 2103 | int zebra_send_pw(struct zclient *zclient, int command, struct zapi_pw *pw) |
2104 | { | |
2105 | struct stream *s; | |
2106 | ||
2107 | /* Reset stream. */ | |
2108 | s = zclient->obuf; | |
2109 | stream_reset(s); | |
2110 | ||
2111 | zclient_create_header(s, command, VRF_DEFAULT); | |
2112 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
2113 | stream_putl(s, pw->ifindex); | |
2114 | ||
2115 | /* Put type */ | |
2116 | stream_putl(s, pw->type); | |
2117 | ||
2118 | /* Put nexthop */ | |
2119 | stream_putl(s, pw->af); | |
2120 | switch (pw->af) { | |
2121 | case AF_INET: | |
2122 | stream_put_in_addr(s, &pw->nexthop.ipv4); | |
2123 | break; | |
2124 | case AF_INET6: | |
2125 | stream_write(s, (u_char *)&pw->nexthop.ipv6, 16); | |
2126 | break; | |
2127 | default: | |
2128 | zlog_err("%s: unknown af", __func__); | |
2129 | return -1; | |
2130 | } | |
2131 | ||
2132 | /* Put labels */ | |
2133 | stream_putl(s, pw->local_label); | |
2134 | stream_putl(s, pw->remote_label); | |
2135 | ||
2136 | /* Put flags */ | |
2137 | stream_putc(s, pw->flags); | |
2138 | ||
2139 | /* Protocol specific fields */ | |
2140 | stream_write(s, &pw->data, sizeof(union pw_protocol_fields)); | |
2141 | ||
2142 | /* Put length at the first point of the stream. */ | |
2143 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2144 | ||
2145 | return zclient_send_message(zclient); | |
2146 | } | |
2147 | ||
2148 | /* | |
2149 | * Receive PW status update from Zebra and send it to LDE process. | |
2150 | */ | |
2151 | void zebra_read_pw_status_update(int command, struct zclient *zclient, | |
2152 | zebra_size_t length, vrf_id_t vrf_id, | |
2153 | struct zapi_pw_status *pw) | |
2154 | { | |
2155 | struct stream *s; | |
2156 | ||
2157 | memset(pw, 0, sizeof(struct zapi_pw_status)); | |
2158 | s = zclient->ibuf; | |
2159 | ||
2160 | /* Get data. */ | |
2161 | stream_get(pw->ifname, s, IF_NAMESIZE); | |
2162 | pw->ifindex = stream_getl(s); | |
2163 | pw->status = stream_getl(s); | |
2164 | } | |
2165 | ||
718e3744 | 2166 | /* Zebra client message read function. */ |
d62a17ae | 2167 | static int zclient_read(struct thread *thread) |
718e3744 | 2168 | { |
d62a17ae | 2169 | size_t already; |
2170 | uint16_t length, command; | |
2171 | uint8_t marker, version; | |
2172 | vrf_id_t vrf_id; | |
2173 | struct zclient *zclient; | |
2174 | ||
2175 | /* Get socket to zebra. */ | |
2176 | zclient = THREAD_ARG(thread); | |
2177 | zclient->t_read = NULL; | |
2178 | ||
2179 | /* Read zebra header (if we don't have it already). */ | |
2180 | if ((already = stream_get_endp(zclient->ibuf)) < ZEBRA_HEADER_SIZE) { | |
2181 | ssize_t nbyte; | |
2182 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2183 | ZEBRA_HEADER_SIZE - already)) | |
2184 | == 0) | |
2185 | || (nbyte == -1)) { | |
2186 | if (zclient_debug) | |
2187 | zlog_debug( | |
2188 | "zclient connection closed socket [%d].", | |
2189 | zclient->sock); | |
2190 | return zclient_failed(zclient); | |
2191 | } | |
2192 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
2193 | /* Try again later. */ | |
2194 | zclient_event(ZCLIENT_READ, zclient); | |
2195 | return 0; | |
2196 | } | |
2197 | already = ZEBRA_HEADER_SIZE; | |
634f9ea2 | 2198 | } |
d62a17ae | 2199 | |
2200 | /* Reset to read from the beginning of the incoming packet. */ | |
2201 | stream_set_getp(zclient->ibuf, 0); | |
2202 | ||
2203 | /* Fetch header values. */ | |
2204 | length = stream_getw(zclient->ibuf); | |
2205 | marker = stream_getc(zclient->ibuf); | |
2206 | version = stream_getc(zclient->ibuf); | |
a9ff90c4 | 2207 | vrf_id = stream_getl(zclient->ibuf); |
d62a17ae | 2208 | command = stream_getw(zclient->ibuf); |
2209 | ||
2210 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
2211 | zlog_err( | |
2212 | "%s: socket %d version mismatch, marker %d, version %d", | |
2213 | __func__, zclient->sock, marker, version); | |
2214 | return zclient_failed(zclient); | |
634f9ea2 | 2215 | } |
d62a17ae | 2216 | |
2217 | if (length < ZEBRA_HEADER_SIZE) { | |
2218 | zlog_err("%s: socket %d message length %u is less than %d ", | |
2219 | __func__, zclient->sock, length, ZEBRA_HEADER_SIZE); | |
2220 | return zclient_failed(zclient); | |
634f9ea2 | 2221 | } |
d62a17ae | 2222 | |
2223 | /* Length check. */ | |
2224 | if (length > STREAM_SIZE(zclient->ibuf)) { | |
2225 | struct stream *ns; | |
2226 | zlog_warn( | |
2227 | "%s: message size %u exceeds buffer size %lu, expanding...", | |
2228 | __func__, length, (u_long)STREAM_SIZE(zclient->ibuf)); | |
2229 | ns = stream_new(length); | |
2230 | stream_copy(ns, zclient->ibuf); | |
2231 | stream_free(zclient->ibuf); | |
2232 | zclient->ibuf = ns; | |
2233 | } | |
2234 | ||
2235 | /* Read rest of zebra packet. */ | |
2236 | if (already < length) { | |
2237 | ssize_t nbyte; | |
2238 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2239 | length - already)) | |
2240 | == 0) | |
2241 | || (nbyte == -1)) { | |
2242 | if (zclient_debug) | |
2243 | zlog_debug( | |
2244 | "zclient connection closed socket [%d].", | |
2245 | zclient->sock); | |
2246 | return zclient_failed(zclient); | |
2247 | } | |
2248 | if (nbyte != (ssize_t)(length - already)) { | |
2249 | /* Try again later. */ | |
2250 | zclient_event(ZCLIENT_READ, zclient); | |
2251 | return 0; | |
2252 | } | |
2253 | } | |
2254 | ||
2255 | length -= ZEBRA_HEADER_SIZE; | |
2256 | ||
2257 | if (zclient_debug) | |
2258 | zlog_debug("zclient 0x%p command 0x%x VRF %u\n", | |
2259 | (void *)zclient, command, vrf_id); | |
2260 | ||
2261 | switch (command) { | |
2262 | case ZEBRA_ROUTER_ID_UPDATE: | |
2263 | if (zclient->router_id_update) | |
2264 | (*zclient->router_id_update)(command, zclient, length, | |
2265 | vrf_id); | |
2266 | break; | |
2267 | case ZEBRA_VRF_ADD: | |
2268 | zclient_vrf_add(zclient, vrf_id); | |
2269 | break; | |
2270 | case ZEBRA_VRF_DELETE: | |
2271 | zclient_vrf_delete(zclient, vrf_id); | |
2272 | break; | |
2273 | case ZEBRA_INTERFACE_ADD: | |
2274 | if (zclient->interface_add) | |
2275 | (*zclient->interface_add)(command, zclient, length, | |
2276 | vrf_id); | |
2277 | break; | |
2278 | case ZEBRA_INTERFACE_DELETE: | |
2279 | if (zclient->interface_delete) | |
2280 | (*zclient->interface_delete)(command, zclient, length, | |
2281 | vrf_id); | |
2282 | break; | |
2283 | case ZEBRA_INTERFACE_ADDRESS_ADD: | |
2284 | if (zclient->interface_address_add) | |
2285 | (*zclient->interface_address_add)(command, zclient, | |
2286 | length, vrf_id); | |
2287 | break; | |
2288 | case ZEBRA_INTERFACE_ADDRESS_DELETE: | |
2289 | if (zclient->interface_address_delete) | |
2290 | (*zclient->interface_address_delete)(command, zclient, | |
2291 | length, vrf_id); | |
2292 | break; | |
2293 | case ZEBRA_INTERFACE_BFD_DEST_UPDATE: | |
2294 | if (zclient->interface_bfd_dest_update) | |
2295 | (*zclient->interface_bfd_dest_update)(command, zclient, | |
2296 | length, vrf_id); | |
2297 | break; | |
2298 | case ZEBRA_INTERFACE_NBR_ADDRESS_ADD: | |
2299 | if (zclient->interface_nbr_address_add) | |
2300 | (*zclient->interface_nbr_address_add)(command, zclient, | |
2301 | length, vrf_id); | |
2302 | break; | |
2303 | case ZEBRA_INTERFACE_NBR_ADDRESS_DELETE: | |
2304 | if (zclient->interface_nbr_address_delete) | |
2305 | (*zclient->interface_nbr_address_delete)( | |
2306 | command, zclient, length, vrf_id); | |
2307 | break; | |
2308 | case ZEBRA_INTERFACE_UP: | |
2309 | if (zclient->interface_up) | |
2310 | (*zclient->interface_up)(command, zclient, length, | |
2311 | vrf_id); | |
2312 | break; | |
2313 | case ZEBRA_INTERFACE_DOWN: | |
2314 | if (zclient->interface_down) | |
2315 | (*zclient->interface_down)(command, zclient, length, | |
2316 | vrf_id); | |
2317 | break; | |
2318 | case ZEBRA_INTERFACE_VRF_UPDATE: | |
2319 | if (zclient->interface_vrf_update) | |
2320 | (*zclient->interface_vrf_update)(command, zclient, | |
2321 | length, vrf_id); | |
2322 | break; | |
2323 | case ZEBRA_NEXTHOP_UPDATE: | |
2324 | if (zclient_debug) | |
2325 | zlog_debug("zclient rcvd nexthop update\n"); | |
2326 | if (zclient->nexthop_update) | |
2327 | (*zclient->nexthop_update)(command, zclient, length, | |
2328 | vrf_id); | |
2329 | break; | |
2330 | case ZEBRA_IMPORT_CHECK_UPDATE: | |
2331 | if (zclient_debug) | |
2332 | zlog_debug("zclient rcvd import check update\n"); | |
2333 | if (zclient->import_check_update) | |
2334 | (*zclient->import_check_update)(command, zclient, | |
2335 | length, vrf_id); | |
2336 | break; | |
2337 | case ZEBRA_BFD_DEST_REPLAY: | |
2338 | if (zclient->bfd_dest_replay) | |
2339 | (*zclient->bfd_dest_replay)(command, zclient, length, | |
2340 | vrf_id); | |
2341 | break; | |
74489921 RW |
2342 | case ZEBRA_REDISTRIBUTE_ROUTE_ADD: |
2343 | if (zclient->redistribute_route_add) | |
2344 | (*zclient->redistribute_route_add)(command, zclient, | |
2345 | length, vrf_id); | |
d62a17ae | 2346 | break; |
74489921 RW |
2347 | case ZEBRA_REDISTRIBUTE_ROUTE_DEL: |
2348 | if (zclient->redistribute_route_del) | |
2349 | (*zclient->redistribute_route_del)(command, zclient, | |
2350 | length, vrf_id); | |
d62a17ae | 2351 | break; |
2352 | case ZEBRA_INTERFACE_LINK_PARAMS: | |
2353 | if (zclient->interface_link_params) | |
2354 | (*zclient->interface_link_params)(command, zclient, | |
2355 | length); | |
2356 | break; | |
2357 | case ZEBRA_FEC_UPDATE: | |
2358 | if (zclient_debug) | |
2359 | zlog_debug("zclient rcvd fec update\n"); | |
2360 | if (zclient->fec_update) | |
2361 | (*zclient->fec_update)(command, zclient, length); | |
2362 | break; | |
2363 | case ZEBRA_VNI_ADD: | |
2364 | if (zclient->local_vni_add) | |
2365 | (*zclient->local_vni_add)(command, zclient, length, | |
2366 | vrf_id); | |
2367 | break; | |
2368 | case ZEBRA_VNI_DEL: | |
2369 | if (zclient->local_vni_del) | |
2370 | (*zclient->local_vni_del)(command, zclient, length, | |
2371 | vrf_id); | |
2372 | break; | |
b7cfce93 MK |
2373 | case ZEBRA_L3VNI_ADD: |
2374 | if (zclient->local_l3vni_add) | |
2375 | (*zclient->local_l3vni_add)(command, zclient, length, | |
2376 | vrf_id); | |
2377 | break; | |
2378 | case ZEBRA_L3VNI_DEL: | |
2379 | if (zclient->local_l3vni_del) | |
2380 | (*zclient->local_l3vni_del)(command, zclient, length, | |
2381 | vrf_id); | |
2382 | break; | |
d62a17ae | 2383 | case ZEBRA_MACIP_ADD: |
2384 | if (zclient->local_macip_add) | |
2385 | (*zclient->local_macip_add)(command, zclient, length, | |
2386 | vrf_id); | |
2387 | break; | |
2388 | case ZEBRA_MACIP_DEL: | |
2389 | if (zclient->local_macip_del) | |
2390 | (*zclient->local_macip_del)(command, zclient, length, | |
2391 | vrf_id); | |
2392 | break; | |
31310b25 MK |
2393 | case ZEBRA_IP_PREFIX_ROUTE_ADD: |
2394 | if (zclient->local_ip_prefix_add) | |
2395 | (*zclient->local_ip_prefix_add)(command, zclient, | |
2396 | length, vrf_id); | |
2397 | break; | |
2398 | case ZEBRA_IP_PREFIX_ROUTE_DEL: | |
2399 | if (zclient->local_ip_prefix_del) | |
2400 | (*zclient->local_ip_prefix_del)(command, zclient, | |
2401 | length, vrf_id); | |
2402 | break; | |
6833ae01 | 2403 | case ZEBRA_PW_STATUS_UPDATE: |
2404 | if (zclient->pw_status_update) | |
2405 | (*zclient->pw_status_update)(command, zclient, length, | |
2406 | vrf_id); | |
2407 | break; | |
7ea7b86e | 2408 | case ZEBRA_ROUTE_NOTIFY_OWNER: |
28b11f81 DS |
2409 | if (zclient->route_notify_owner) |
2410 | (*zclient->route_notify_owner)(command, zclient, length, | |
2411 | vrf_id); | |
7ea7b86e | 2412 | break; |
b6c5d343 DS |
2413 | case ZEBRA_RULE_NOTIFY_OWNER: |
2414 | if (zclient->rule_notify_owner) | |
2415 | (*zclient->rule_notify_owner)(command, zclient, length, | |
2416 | vrf_id); | |
d62a17ae | 2417 | default: |
2418 | break; | |
634f9ea2 | 2419 | } |
d62a17ae | 2420 | |
2421 | if (zclient->sock < 0) | |
2422 | /* Connection was closed during packet processing. */ | |
2423 | return -1; | |
2424 | ||
2425 | /* Register read thread. */ | |
2426 | stream_reset(zclient->ibuf); | |
2427 | zclient_event(ZCLIENT_READ, zclient); | |
2428 | ||
2429 | return 0; | |
718e3744 | 2430 | } |
2431 | ||
d62a17ae | 2432 | void zclient_redistribute(int command, struct zclient *zclient, afi_t afi, |
2433 | int type, u_short instance, vrf_id_t vrf_id) | |
718e3744 | 2434 | { |
718e3744 | 2435 | |
d62a17ae | 2436 | if (instance) { |
2437 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
2438 | if (redist_check_instance( | |
2439 | &zclient->mi_redist[afi][type], instance)) | |
2440 | return; | |
2441 | redist_add_instance(&zclient->mi_redist[afi][type], | |
2442 | instance); | |
2443 | } else { | |
2444 | if (!redist_check_instance( | |
2445 | &zclient->mi_redist[afi][type], instance)) | |
2446 | return; | |
2447 | redist_del_instance(&zclient->mi_redist[afi][type], | |
2448 | instance); | |
2449 | } | |
2450 | ||
2451 | } else { | |
2452 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
2453 | if (vrf_bitmap_check(zclient->redist[afi][type], | |
2454 | vrf_id)) | |
2455 | return; | |
2456 | vrf_bitmap_set(zclient->redist[afi][type], vrf_id); | |
2457 | } else { | |
2458 | if (!vrf_bitmap_check(zclient->redist[afi][type], | |
2459 | vrf_id)) | |
2460 | return; | |
2461 | vrf_bitmap_unset(zclient->redist[afi][type], vrf_id); | |
2462 | } | |
2463 | } | |
2464 | ||
2465 | if (zclient->sock > 0) | |
2466 | zebra_redistribute_send(command, zclient, afi, type, instance, | |
2467 | vrf_id); | |
718e3744 | 2468 | } |
2469 | ||
718e3744 | 2470 | |
d62a17ae | 2471 | void zclient_redistribute_default(int command, struct zclient *zclient, |
2472 | vrf_id_t vrf_id) | |
718e3744 | 2473 | { |
718e3744 | 2474 | |
d62a17ae | 2475 | if (command == ZEBRA_REDISTRIBUTE_DEFAULT_ADD) { |
2476 | if (vrf_bitmap_check(zclient->default_information, vrf_id)) | |
2477 | return; | |
2478 | vrf_bitmap_set(zclient->default_information, vrf_id); | |
2479 | } else { | |
2480 | if (!vrf_bitmap_check(zclient->default_information, vrf_id)) | |
2481 | return; | |
2482 | vrf_bitmap_unset(zclient->default_information, vrf_id); | |
2483 | } | |
2484 | ||
2485 | if (zclient->sock > 0) | |
2486 | zebra_message_send(zclient, command, vrf_id); | |
718e3744 | 2487 | } |
2488 | ||
d62a17ae | 2489 | static void zclient_event(enum event event, struct zclient *zclient) |
718e3744 | 2490 | { |
d62a17ae | 2491 | switch (event) { |
2492 | case ZCLIENT_SCHEDULE: | |
2493 | thread_add_event(zclient->master, zclient_connect, zclient, 0, | |
2494 | &zclient->t_connect); | |
2495 | break; | |
2496 | case ZCLIENT_CONNECT: | |
2497 | if (zclient_debug) | |
2498 | zlog_debug( | |
2499 | "zclient connect failures: %d schedule interval is now %d", | |
2500 | zclient->fail, zclient->fail < 3 ? 10 : 60); | |
2501 | thread_add_timer(zclient->master, zclient_connect, zclient, | |
2502 | zclient->fail < 3 ? 10 : 60, | |
2503 | &zclient->t_connect); | |
2504 | break; | |
2505 | case ZCLIENT_READ: | |
2506 | zclient->t_read = NULL; | |
2507 | thread_add_read(zclient->master, zclient_read, zclient, | |
2508 | zclient->sock, &zclient->t_read); | |
2509 | break; | |
2510 | } | |
718e3744 | 2511 | } |
b5114685 | 2512 | |
e0ae31b8 DS |
2513 | void zclient_interface_set_master(struct zclient *client, |
2514 | struct interface *master, | |
2515 | struct interface *slave) | |
2516 | { | |
2517 | struct stream *s; | |
2518 | ||
2519 | s = client->obuf; | |
2520 | stream_reset(s); | |
2521 | ||
2522 | zclient_create_header(s, ZEBRA_INTERFACE_SET_MASTER, master->vrf_id); | |
2523 | ||
a9ff90c4 | 2524 | stream_putl(s, master->vrf_id); |
e0ae31b8 | 2525 | stream_putl(s, master->ifindex); |
a9ff90c4 | 2526 | stream_putl(s, slave->vrf_id); |
e0ae31b8 DS |
2527 | stream_putl(s, slave->ifindex); |
2528 | ||
2529 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2530 | zclient_send_message(client); | |
2531 | } |