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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" |
0031a6bb | 39 | #include "pbr.h" |
98cbbaea | 40 | #include "nexthop_group.h" |
6b0655a2 | 41 | |
4a1ab8e4 | 42 | DEFINE_MTYPE_STATIC(LIB, ZCLIENT, "Zclient") |
14878121 | 43 | DEFINE_MTYPE_STATIC(LIB, REDIST_INST, "Redistribution instance IDs") |
4a1ab8e4 | 44 | |
718e3744 | 45 | /* Zebra client events. */ |
d62a17ae | 46 | enum event { ZCLIENT_SCHEDULE, ZCLIENT_READ, ZCLIENT_CONNECT }; |
718e3744 | 47 | |
48 | /* Prototype for event manager. */ | |
d62a17ae | 49 | static void zclient_event(enum event, struct zclient *); |
718e3744 | 50 | |
689f5a8c DL |
51 | struct sockaddr_storage zclient_addr; |
52 | socklen_t zclient_addr_len; | |
b5114685 | 53 | |
718e3744 | 54 | /* This file local debug flag. */ |
55 | int zclient_debug = 0; | |
6b0655a2 | 56 | |
996c9314 | 57 | struct zclient_options zclient_options_default = {.receive_notify = false}; |
e1a1880d | 58 | |
718e3744 | 59 | /* Allocate zclient structure. */ |
e1a1880d DS |
60 | struct zclient *zclient_new_notify(struct thread_master *master, |
61 | struct zclient_options *opt) | |
718e3744 | 62 | { |
d62a17ae | 63 | struct zclient *zclient; |
64 | zclient = XCALLOC(MTYPE_ZCLIENT, sizeof(struct zclient)); | |
718e3744 | 65 | |
d62a17ae | 66 | zclient->ibuf = stream_new(ZEBRA_MAX_PACKET_SIZ); |
67 | zclient->obuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
68 | zclient->wb = buffer_new(0); | |
69 | zclient->master = master; | |
718e3744 | 70 | |
e1a1880d DS |
71 | zclient->receive_notify = opt->receive_notify; |
72 | ||
d62a17ae | 73 | return zclient; |
718e3744 | 74 | } |
75 | ||
228da428 | 76 | /* This function is only called when exiting, because |
634f9ea2 | 77 | many parts of the code do not check for I/O errors, so they could |
78 | reference an invalid pointer if the structure was ever freed. | |
634f9ea2 | 79 | |
228da428 | 80 | Free zclient structure. */ |
d62a17ae | 81 | void zclient_free(struct zclient *zclient) |
718e3744 | 82 | { |
d62a17ae | 83 | if (zclient->ibuf) |
84 | stream_free(zclient->ibuf); | |
85 | if (zclient->obuf) | |
86 | stream_free(zclient->obuf); | |
87 | if (zclient->wb) | |
88 | buffer_free(zclient->wb); | |
89 | ||
90 | XFREE(MTYPE_ZCLIENT, zclient); | |
718e3744 | 91 | } |
92 | ||
d7c0a89a QY |
93 | unsigned short *redist_check_instance(struct redist_proto *red, |
94 | unsigned short instance) | |
7c8ff89e | 95 | { |
d62a17ae | 96 | struct listnode *node; |
d7c0a89a | 97 | unsigned short *id; |
7c8ff89e | 98 | |
d62a17ae | 99 | if (!red->instances) |
100 | return NULL; | |
7c8ff89e | 101 | |
d62a17ae | 102 | for (ALL_LIST_ELEMENTS_RO(red->instances, node, id)) |
103 | if (*id == instance) | |
104 | return id; | |
7c8ff89e | 105 | |
d62a17ae | 106 | return NULL; |
7c8ff89e DS |
107 | } |
108 | ||
d7c0a89a | 109 | void redist_add_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 110 | { |
d7c0a89a | 111 | unsigned short *in; |
7c8ff89e | 112 | |
d62a17ae | 113 | red->enabled = 1; |
7c8ff89e | 114 | |
d62a17ae | 115 | if (!red->instances) |
116 | red->instances = list_new(); | |
7c8ff89e | 117 | |
d7c0a89a | 118 | in = XMALLOC(MTYPE_REDIST_INST, sizeof(unsigned short)); |
d62a17ae | 119 | *in = instance; |
120 | listnode_add(red->instances, in); | |
7c8ff89e DS |
121 | } |
122 | ||
d7c0a89a | 123 | void redist_del_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 124 | { |
d7c0a89a | 125 | unsigned short *id; |
d62a17ae | 126 | |
127 | id = redist_check_instance(red, instance); | |
128 | if (!id) | |
129 | return; | |
130 | ||
131 | listnode_delete(red->instances, id); | |
132 | XFREE(MTYPE_REDIST_INST, id); | |
133 | if (!red->instances->count) { | |
134 | red->enabled = 0; | |
acdf5e25 | 135 | list_delete_and_null(&red->instances); |
d62a17ae | 136 | } |
7c8ff89e DS |
137 | } |
138 | ||
718e3744 | 139 | /* Stop zebra client services. */ |
d62a17ae | 140 | void zclient_stop(struct zclient *zclient) |
718e3744 | 141 | { |
d62a17ae | 142 | afi_t afi; |
143 | int i; | |
144 | ||
145 | if (zclient_debug) | |
146 | zlog_debug("zclient stopped"); | |
147 | ||
148 | /* Stop threads. */ | |
149 | THREAD_OFF(zclient->t_read); | |
150 | THREAD_OFF(zclient->t_connect); | |
151 | THREAD_OFF(zclient->t_write); | |
152 | ||
153 | /* Reset streams. */ | |
154 | stream_reset(zclient->ibuf); | |
155 | stream_reset(zclient->obuf); | |
156 | ||
157 | /* Empty the write buffer. */ | |
158 | buffer_reset(zclient->wb); | |
159 | ||
160 | /* Close socket. */ | |
161 | if (zclient->sock >= 0) { | |
162 | close(zclient->sock); | |
163 | zclient->sock = -1; | |
164 | } | |
165 | zclient->fail = 0; | |
166 | ||
167 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
168 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
169 | vrf_bitmap_free(zclient->redist[afi][i]); | |
170 | zclient->redist[afi][i] = VRF_BITMAP_NULL; | |
171 | } | |
172 | redist_del_instance( | |
173 | &zclient->mi_redist[afi][zclient->redist_default], | |
174 | zclient->instance); | |
41246cb6 | 175 | } |
41246cb6 | 176 | |
d62a17ae | 177 | vrf_bitmap_free(zclient->default_information); |
178 | zclient->default_information = VRF_BITMAP_NULL; | |
718e3744 | 179 | } |
180 | ||
d62a17ae | 181 | void zclient_reset(struct zclient *zclient) |
718e3744 | 182 | { |
d62a17ae | 183 | afi_t afi; |
3d68677e | 184 | |
d62a17ae | 185 | zclient_stop(zclient); |
3d68677e | 186 | |
d62a17ae | 187 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
188 | redist_del_instance( | |
189 | &zclient->mi_redist[afi][zclient->redist_default], | |
190 | zclient->instance); | |
3d68677e | 191 | |
996c9314 LB |
192 | zclient_init(zclient, zclient->redist_default, zclient->instance, |
193 | zclient->privs); | |
718e3744 | 194 | } |
195 | ||
689f5a8c DL |
196 | /** |
197 | * Connect to zebra daemon. | |
198 | * @param zclient a pointer to zclient structure | |
199 | * @return socket fd just to make sure that connection established | |
200 | * @see zclient_init | |
e1a1880d | 201 | * @see zclient_new_notify |
689f5a8c DL |
202 | */ |
203 | int zclient_socket_connect(struct zclient *zclient) | |
718e3744 | 204 | { |
d62a17ae | 205 | int sock; |
206 | int ret; | |
d62a17ae | 207 | |
208 | /* We should think about IPv6 connection. */ | |
689f5a8c | 209 | sock = socket(zclient_addr.ss_family, SOCK_STREAM, 0); |
d62a17ae | 210 | if (sock < 0) |
211 | return -1; | |
212 | ||
689f5a8c | 213 | set_cloexec(sock); |
d62a17ae | 214 | |
342213ea DS |
215 | zclient->privs->change(ZPRIVS_RAISE); |
216 | setsockopt_so_sendbuf(sock, 1048576); | |
217 | zclient->privs->change(ZPRIVS_LOWER); | |
218 | ||
d62a17ae | 219 | /* Connect to zebra. */ |
996c9314 | 220 | ret = connect(sock, (struct sockaddr *)&zclient_addr, zclient_addr_len); |
d62a17ae | 221 | if (ret < 0) { |
222 | if (zclient_debug) | |
223 | zlog_warn("%s connect failure: %d(%s)", | |
224 | __PRETTY_FUNCTION__, errno, | |
225 | safe_strerror(errno)); | |
226 | close(sock); | |
227 | return -1; | |
228 | } | |
718e3744 | 229 | |
689f5a8c | 230 | zclient->sock = sock; |
d62a17ae | 231 | return sock; |
718e3744 | 232 | } |
233 | ||
d62a17ae | 234 | static int zclient_failed(struct zclient *zclient) |
634f9ea2 | 235 | { |
d62a17ae | 236 | zclient->fail++; |
237 | zclient_stop(zclient); | |
238 | zclient_event(ZCLIENT_CONNECT, zclient); | |
239 | return -1; | |
634f9ea2 | 240 | } |
241 | ||
d62a17ae | 242 | static int zclient_flush_data(struct thread *thread) |
634f9ea2 | 243 | { |
d62a17ae | 244 | struct zclient *zclient = THREAD_ARG(thread); |
245 | ||
246 | zclient->t_write = NULL; | |
247 | if (zclient->sock < 0) | |
248 | return -1; | |
249 | switch (buffer_flush_available(zclient->wb, zclient->sock)) { | |
250 | case BUFFER_ERROR: | |
251 | zlog_warn( | |
252 | "%s: buffer_flush_available failed on zclient fd %d, closing", | |
253 | __func__, zclient->sock); | |
254 | return zclient_failed(zclient); | |
255 | break; | |
256 | case BUFFER_PENDING: | |
257 | zclient->t_write = NULL; | |
258 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
259 | zclient->sock, &zclient->t_write); | |
260 | break; | |
261 | case BUFFER_EMPTY: | |
262 | break; | |
263 | } | |
264 | return 0; | |
634f9ea2 | 265 | } |
266 | ||
d62a17ae | 267 | int zclient_send_message(struct zclient *zclient) |
634f9ea2 | 268 | { |
d62a17ae | 269 | if (zclient->sock < 0) |
270 | return -1; | |
271 | switch (buffer_write(zclient->wb, zclient->sock, | |
272 | STREAM_DATA(zclient->obuf), | |
273 | stream_get_endp(zclient->obuf))) { | |
274 | case BUFFER_ERROR: | |
275 | zlog_warn("%s: buffer_write failed to zclient fd %d, closing", | |
276 | __func__, zclient->sock); | |
277 | return zclient_failed(zclient); | |
278 | break; | |
279 | case BUFFER_EMPTY: | |
280 | THREAD_OFF(zclient->t_write); | |
281 | break; | |
282 | case BUFFER_PENDING: | |
283 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
284 | zclient->sock, &zclient->t_write); | |
285 | break; | |
286 | } | |
287 | return 0; | |
634f9ea2 | 288 | } |
289 | ||
d62a17ae | 290 | void zclient_create_header(struct stream *s, uint16_t command, vrf_id_t vrf_id) |
c1b9800a | 291 | { |
d62a17ae | 292 | /* length placeholder, caller can update */ |
293 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
294 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
295 | stream_putc(s, ZSERV_VERSION); | |
a9ff90c4 | 296 | stream_putl(s, vrf_id); |
d62a17ae | 297 | stream_putw(s, command); |
c1b9800a | 298 | } |
299 | ||
d7c0a89a QY |
300 | int zclient_read_header(struct stream *s, int sock, uint16_t *size, |
301 | uint8_t *marker, uint8_t *version, vrf_id_t *vrf_id, | |
302 | uint16_t *cmd) | |
55119089 | 303 | { |
d62a17ae | 304 | if (stream_read(s, sock, ZEBRA_HEADER_SIZE) != ZEBRA_HEADER_SIZE) |
305 | return -1; | |
306 | ||
ec93aa12 DS |
307 | STREAM_GETW(s, *size); |
308 | *size -= ZEBRA_HEADER_SIZE; | |
309 | STREAM_GETC(s, *marker); | |
310 | STREAM_GETC(s, *version); | |
a9ff90c4 | 311 | STREAM_GETL(s, *vrf_id); |
ec93aa12 | 312 | STREAM_GETW(s, *cmd); |
d62a17ae | 313 | |
314 | if (*version != ZSERV_VERSION || *marker != ZEBRA_HEADER_MARKER) { | |
315 | zlog_err( | |
316 | "%s: socket %d version mismatch, marker %d, version %d", | |
317 | __func__, sock, *marker, *version); | |
318 | return -1; | |
319 | } | |
320 | ||
321 | if (*size && stream_read(s, sock, *size) != *size) | |
322 | return -1; | |
323 | ||
ec93aa12 | 324 | stream_failure: |
d62a17ae | 325 | return 0; |
55119089 ND |
326 | } |
327 | ||
124ead27 QY |
328 | bool zapi_parse_header(struct stream *zmsg, struct zmsghdr *hdr) |
329 | { | |
330 | STREAM_GETW(zmsg, hdr->length); | |
331 | STREAM_GETC(zmsg, hdr->marker); | |
332 | STREAM_GETC(zmsg, hdr->version); | |
107afcd1 | 333 | STREAM_GETL(zmsg, hdr->vrf_id); |
124ead27 QY |
334 | STREAM_GETW(zmsg, hdr->command); |
335 | return true; | |
336 | stream_failure: | |
337 | return false; | |
338 | } | |
339 | ||
634f9ea2 | 340 | /* Send simple Zebra message. */ |
d62a17ae | 341 | static int zebra_message_send(struct zclient *zclient, int command, |
342 | vrf_id_t vrf_id) | |
718e3744 | 343 | { |
d62a17ae | 344 | struct stream *s; |
718e3744 | 345 | |
d62a17ae | 346 | /* Get zclient output buffer. */ |
347 | s = zclient->obuf; | |
348 | stream_reset(s); | |
718e3744 | 349 | |
d62a17ae | 350 | /* Send very simple command only Zebra message. */ |
351 | zclient_create_header(s, command, vrf_id); | |
352 | ||
353 | return zclient_send_message(zclient); | |
718e3744 | 354 | } |
355 | ||
d62a17ae | 356 | static int zebra_hello_send(struct zclient *zclient) |
2ea1ab1c | 357 | { |
d62a17ae | 358 | struct stream *s; |
359 | ||
360 | if (zclient->redist_default) { | |
361 | s = zclient->obuf; | |
362 | stream_reset(s); | |
363 | ||
364 | /* The VRF ID in the HELLO message is always 0. */ | |
365 | zclient_create_header(s, ZEBRA_HELLO, VRF_DEFAULT); | |
366 | stream_putc(s, zclient->redist_default); | |
367 | stream_putw(s, zclient->instance); | |
e1a1880d DS |
368 | if (zclient->receive_notify) |
369 | stream_putc(s, 1); | |
370 | else | |
371 | stream_putc(s, 0); | |
372 | ||
d62a17ae | 373 | stream_putw_at(s, 0, stream_get_endp(s)); |
374 | return zclient_send_message(zclient); | |
375 | } | |
376 | ||
377 | return 0; | |
2ea1ab1c VT |
378 | } |
379 | ||
7d061b3c | 380 | void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id, afi_t afi, |
339e36d2 | 381 | mpls_label_t label, enum lsp_types_t ltype) |
c83c5e44 DS |
382 | { |
383 | struct stream *s; | |
384 | ||
385 | s = zclient->obuf; | |
386 | stream_reset(s); | |
387 | ||
388 | zclient_create_header(s, ZEBRA_VRF_LABEL, vrf_id); | |
389 | stream_putl(s, label); | |
7d061b3c | 390 | stream_putc(s, afi); |
339e36d2 | 391 | stream_putc(s, ltype); |
c83c5e44 DS |
392 | stream_putw_at(s, 0, stream_get_endp(s)); |
393 | zclient_send_message(zclient); | |
394 | } | |
395 | ||
0e5223e7 | 396 | /* Send register requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 397 | void zclient_send_reg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
7076bb2f | 398 | { |
d62a17ae | 399 | int i; |
400 | afi_t afi; | |
401 | ||
d62a17ae | 402 | /* If not connected to the zebra yet. */ |
403 | if (zclient->sock < 0) | |
404 | return; | |
405 | ||
406 | if (zclient_debug) | |
407 | zlog_debug("%s: send register messages for VRF %u", __func__, | |
408 | vrf_id); | |
409 | ||
410 | /* We need router-id information. */ | |
411 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_ADD, vrf_id); | |
412 | ||
413 | /* We need interface information. */ | |
414 | zebra_message_send(zclient, ZEBRA_INTERFACE_ADD, vrf_id); | |
415 | ||
416 | /* Set unwanted redistribute route. */ | |
417 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
418 | vrf_bitmap_set(zclient->redist[afi][zclient->redist_default], | |
419 | vrf_id); | |
420 | ||
421 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
422 | if (vrf_id == VRF_DEFAULT) { |
423 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
424 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
425 | if (!zclient->mi_redist[afi][i].enabled) | |
426 | continue; | |
427 | ||
428 | struct listnode *node; | |
d7c0a89a | 429 | unsigned short *id; |
0d9e7f45 DS |
430 | |
431 | for (ALL_LIST_ELEMENTS_RO( | |
432 | zclient->mi_redist[afi][i] | |
996c9314 LB |
433 | .instances, |
434 | node, id)) | |
0d9e7f45 DS |
435 | if (!(i == zclient->redist_default |
436 | && *id == zclient->instance)) | |
437 | zebra_redistribute_send( | |
438 | ZEBRA_REDISTRIBUTE_ADD, | |
996c9314 | 439 | zclient, afi, i, *id, |
0d9e7f45 DS |
440 | VRF_DEFAULT); |
441 | } | |
442 | } | |
443 | } | |
d62a17ae | 444 | |
70172b1c | 445 | /* Resend all redistribute request. */ |
d62a17ae | 446 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
447 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
448 | if (i != zclient->redist_default | |
449 | && vrf_bitmap_check(zclient->redist[afi][i], | |
450 | vrf_id)) | |
451 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, | |
452 | zclient, afi, i, 0, | |
453 | vrf_id); | |
454 | ||
455 | /* If default information is needed. */ | |
456 | if (vrf_bitmap_check(zclient->default_information, VRF_DEFAULT)) | |
457 | zebra_message_send(zclient, ZEBRA_REDISTRIBUTE_DEFAULT_ADD, | |
458 | vrf_id); | |
7076bb2f FL |
459 | } |
460 | ||
0e5223e7 | 461 | /* Send unregister requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 462 | void zclient_send_dereg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
0e5223e7 | 463 | { |
d62a17ae | 464 | int i; |
465 | afi_t afi; | |
466 | ||
d62a17ae | 467 | /* If not connected to the zebra yet. */ |
468 | if (zclient->sock < 0) | |
469 | return; | |
470 | ||
471 | if (zclient_debug) | |
472 | zlog_debug("%s: send deregister messages for VRF %u", __func__, | |
473 | vrf_id); | |
474 | ||
475 | /* We need router-id information. */ | |
476 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_DELETE, vrf_id); | |
477 | ||
478 | /* We need interface information. */ | |
479 | zebra_message_send(zclient, ZEBRA_INTERFACE_DELETE, vrf_id); | |
480 | ||
481 | /* Set unwanted redistribute route. */ | |
482 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
09eef679 DS |
483 | vrf_bitmap_unset(zclient->redist[afi][zclient->redist_default], |
484 | vrf_id); | |
d62a17ae | 485 | |
486 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
487 | if (vrf_id == VRF_DEFAULT) { |
488 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
489 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
490 | if (!zclient->mi_redist[afi][i].enabled) | |
491 | continue; | |
492 | ||
493 | struct listnode *node; | |
d7c0a89a | 494 | unsigned short *id; |
0d9e7f45 DS |
495 | |
496 | for (ALL_LIST_ELEMENTS_RO( | |
497 | zclient->mi_redist[afi][i] | |
996c9314 LB |
498 | .instances, |
499 | node, id)) | |
0d9e7f45 DS |
500 | if (!(i == zclient->redist_default |
501 | && *id == zclient->instance)) | |
502 | zebra_redistribute_send( | |
503 | ZEBRA_REDISTRIBUTE_DELETE, | |
996c9314 | 504 | zclient, afi, i, *id, |
0d9e7f45 DS |
505 | VRF_DEFAULT); |
506 | } | |
507 | } | |
508 | } | |
d62a17ae | 509 | |
510 | /* Flush all redistribute request. */ | |
511 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
512 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
513 | if (i != zclient->redist_default | |
514 | && vrf_bitmap_check(zclient->redist[afi][i], | |
515 | vrf_id)) | |
516 | zebra_redistribute_send( | |
517 | ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
518 | i, 0, vrf_id); | |
519 | ||
520 | /* If default information is needed. */ | |
521 | if (vrf_bitmap_check(zclient->default_information, VRF_DEFAULT)) | |
522 | zebra_message_send(zclient, ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, | |
523 | vrf_id); | |
0e5223e7 | 524 | } |
525 | ||
4a04e5f7 | 526 | /* Send request to zebra daemon to start or stop RA. */ |
d62a17ae | 527 | void zclient_send_interface_radv_req(struct zclient *zclient, vrf_id_t vrf_id, |
528 | struct interface *ifp, int enable, | |
529 | int ra_interval) | |
4a04e5f7 | 530 | { |
d62a17ae | 531 | struct stream *s; |
4a04e5f7 | 532 | |
d62a17ae | 533 | /* If not connected to the zebra yet. */ |
534 | if (zclient->sock < 0) | |
535 | return; | |
4a04e5f7 | 536 | |
d62a17ae | 537 | /* Form and send message. */ |
538 | s = zclient->obuf; | |
539 | stream_reset(s); | |
4a04e5f7 | 540 | |
d62a17ae | 541 | if (enable) |
542 | zclient_create_header(s, ZEBRA_INTERFACE_ENABLE_RADV, vrf_id); | |
543 | else | |
544 | zclient_create_header(s, ZEBRA_INTERFACE_DISABLE_RADV, vrf_id); | |
4a04e5f7 | 545 | |
d62a17ae | 546 | stream_putl(s, ifp->ifindex); |
547 | stream_putl(s, ra_interval); | |
4a04e5f7 | 548 | |
d62a17ae | 549 | stream_putw_at(s, 0, stream_get_endp(s)); |
4a04e5f7 | 550 | |
d62a17ae | 551 | zclient_send_message(zclient); |
4a04e5f7 | 552 | } |
553 | ||
718e3744 | 554 | /* Make connection to zebra daemon. */ |
d62a17ae | 555 | int zclient_start(struct zclient *zclient) |
718e3744 | 556 | { |
d62a17ae | 557 | if (zclient_debug) |
558 | zlog_info("zclient_start is called"); | |
559 | ||
d62a17ae | 560 | /* If already connected to the zebra. */ |
561 | if (zclient->sock >= 0) | |
562 | return 0; | |
563 | ||
564 | /* Check connect thread. */ | |
565 | if (zclient->t_connect) | |
566 | return 0; | |
567 | ||
568 | if (zclient_socket_connect(zclient) < 0) { | |
569 | if (zclient_debug) | |
570 | zlog_debug("zclient connection fail"); | |
571 | zclient->fail++; | |
572 | zclient_event(ZCLIENT_CONNECT, zclient); | |
573 | return -1; | |
574 | } | |
718e3744 | 575 | |
d62a17ae | 576 | if (set_nonblocking(zclient->sock) < 0) |
577 | zlog_warn("%s: set_nonblocking(%d) failed", __func__, | |
578 | zclient->sock); | |
718e3744 | 579 | |
d62a17ae | 580 | /* Clear fail count. */ |
581 | zclient->fail = 0; | |
582 | if (zclient_debug) | |
583 | zlog_debug("zclient connect success with socket [%d]", | |
584 | zclient->sock); | |
718e3744 | 585 | |
d62a17ae | 586 | /* Create read thread. */ |
587 | zclient_event(ZCLIENT_READ, zclient); | |
718e3744 | 588 | |
d62a17ae | 589 | zebra_hello_send(zclient); |
718e3744 | 590 | |
d62a17ae | 591 | /* Inform the successful connection. */ |
592 | if (zclient->zebra_connected) | |
593 | (*zclient->zebra_connected)(zclient); | |
718e3744 | 594 | |
d62a17ae | 595 | return 0; |
718e3744 | 596 | } |
6b0655a2 | 597 | |
078430f6 DS |
598 | /* Initialize zebra client. Argument redist_default is unwanted |
599 | redistribute route type. */ | |
d7c0a89a QY |
600 | void zclient_init(struct zclient *zclient, int redist_default, |
601 | unsigned short instance, struct zebra_privs_t *privs) | |
078430f6 | 602 | { |
d62a17ae | 603 | int afi, i; |
604 | ||
d62a17ae | 605 | /* Set -1 to the default socket value. */ |
606 | zclient->sock = -1; | |
342213ea | 607 | zclient->privs = privs; |
d62a17ae | 608 | |
609 | /* Clear redistribution flags. */ | |
610 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
611 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
612 | zclient->redist[afi][i] = vrf_bitmap_init(); | |
613 | ||
614 | /* Set unwanted redistribute route. bgpd does not need BGP route | |
615 | redistribution. */ | |
616 | zclient->redist_default = redist_default; | |
617 | zclient->instance = instance; | |
618 | /* Pending: make afi(s) an arg. */ | |
619 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
620 | redist_add_instance(&zclient->mi_redist[afi][redist_default], | |
621 | instance); | |
622 | ||
623 | /* Set default-information redistribute to zero. */ | |
624 | zclient->default_information = vrf_bitmap_init(); | |
d62a17ae | 625 | |
626 | if (zclient_debug) | |
627 | zlog_debug("zclient_start is called"); | |
628 | ||
629 | zclient_event(ZCLIENT_SCHEDULE, zclient); | |
7076bb2f | 630 | } |
078430f6 | 631 | |
7076bb2f FL |
632 | /* This function is a wrapper function for calling zclient_start from |
633 | timer or event thread. */ | |
d62a17ae | 634 | static int zclient_connect(struct thread *t) |
7076bb2f | 635 | { |
d62a17ae | 636 | struct zclient *zclient; |
078430f6 | 637 | |
d62a17ae | 638 | zclient = THREAD_ARG(t); |
639 | zclient->t_connect = NULL; | |
078430f6 | 640 | |
d62a17ae | 641 | if (zclient_debug) |
642 | zlog_debug("zclient_connect is called"); | |
078430f6 | 643 | |
d62a17ae | 644 | return zclient_start(zclient); |
078430f6 DS |
645 | } |
646 | ||
3c192540 DS |
647 | int zclient_send_rnh(struct zclient *zclient, int command, struct prefix *p, |
648 | bool exact_match, vrf_id_t vrf_id) | |
649 | { | |
650 | struct stream *s; | |
651 | ||
652 | s = zclient->obuf; | |
653 | stream_reset(s); | |
654 | zclient_create_header(s, command, vrf_id); | |
655 | stream_putc(s, (exact_match) ? 1 : 0); | |
656 | ||
657 | stream_putw(s, PREFIX_FAMILY(p)); | |
658 | stream_putc(s, p->prefixlen); | |
659 | switch (PREFIX_FAMILY(p)) { | |
660 | case AF_INET: | |
661 | stream_put_in_addr(s, &p->u.prefix4); | |
662 | break; | |
663 | case AF_INET6: | |
664 | stream_put(s, &(p->u.prefix6), 16); | |
665 | break; | |
666 | default: | |
667 | break; | |
668 | } | |
669 | stream_putw_at(s, 0, stream_get_endp(s)); | |
670 | ||
671 | return zclient_send_message(zclient); | |
672 | } | |
673 | ||
d62a17ae | 674 | /* |
675 | * "xdr_encode"-like interface that allows daemon (client) to send | |
676 | * a message to zebra server for a route that needs to be | |
677 | * added/deleted to the kernel. Info about the route is specified | |
678 | * by the caller in a struct zapi_ipv4. zapi_ipv4_read() then writes | |
679 | * the info down the zclient socket using the stream_* functions. | |
680 | * | |
681 | * The corresponding read ("xdr_decode") function on the server | |
682 | * side is zread_ipv4_add()/zread_ipv4_delete(). | |
683 | * | |
684 | * 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 | |
685 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
686 | * | Length (2) | Command | Route Type | | |
687 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
688 | * | ZEBRA Flags | Message Flags | Prefix length | | |
689 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
690 | * | Destination IPv4 Prefix for route | | |
691 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
692 | * | Nexthop count | | |
693 | * +-+-+-+-+-+-+-+-+ | |
694 | * | |
695 | * | |
696 | * A number of IPv4 nexthop(s) or nexthop interface index(es) are then | |
697 | * described, as per the Nexthop count. Each nexthop described as: | |
698 | * | |
699 | * +-+-+-+-+-+-+-+-+ | |
700 | * | Nexthop Type | Set to one of ZEBRA_NEXTHOP_* | |
701 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
702 | * | IPv4 Nexthop address or Interface Index number | | |
703 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
704 | * | |
09a484dd DL |
705 | * Alternatively, if the route is a blackhole route, then Nexthop count |
706 | * is set to 1 and a nexthop of type NEXTHOP_TYPE_BLACKHOLE is the sole | |
707 | * nexthop. | |
d62a17ae | 708 | * |
709 | * The original struct zapi_ipv4, zapi_ipv4_route() and zread_ipv4_*() | |
710 | * infrastructure was built around the traditional (32-bit "gate OR | |
711 | * ifindex") nexthop data unit. A special encoding can be used to feed | |
712 | * onlink (64-bit "gate AND ifindex") nexthops into zapi_ipv4_route() | |
713 | * using the same zapi_ipv4 structure. This is done by setting zapi_ipv4 | |
714 | * fields as follows: | |
715 | * - .message |= ZAPI_MESSAGE_NEXTHOP | ZAPI_MESSAGE_ONLINK | |
716 | * - .nexthop_num == .ifindex_num | |
717 | * - .nexthop and .ifindex are filled with gate and ifindex parts of | |
718 | * each compound nexthop, both in the same order | |
719 | * | |
720 | * zapi_ipv4_route() will produce two nexthop data units for each such | |
721 | * interleaved 64-bit nexthop. On the zserv side of the socket it will be | |
722 | * mapped to a singlle NEXTHOP_TYPE_IPV4_IFINDEX_OL RIB nexthop structure. | |
723 | * | |
724 | * If ZAPI_MESSAGE_DISTANCE is set, the distance value is written as a 1 | |
725 | * byte value. | |
726 | * | |
727 | * If ZAPI_MESSAGE_METRIC is set, the metric value is written as an 8 | |
728 | * byte value. | |
729 | * | |
730 | * If ZAPI_MESSAGE_TAG is set, the tag value is written as a 4 byte value | |
731 | * | |
732 | * If ZAPI_MESSAGE_MTU is set, the mtu value is written as a 4 byte value | |
733 | * | |
734 | * XXX: No attention paid to alignment. | |
735 | */ | |
d7c0a89a | 736 | int zapi_ipv4_route(uint8_t cmd, struct zclient *zclient, struct prefix_ipv4 *p, |
d62a17ae | 737 | struct zapi_ipv4 *api) |
718e3744 | 738 | { |
d62a17ae | 739 | int i; |
740 | int psize; | |
741 | struct stream *s; | |
742 | ||
743 | /* Reset stream. */ | |
744 | s = zclient->obuf; | |
745 | stream_reset(s); | |
746 | ||
747 | /* Some checks for labeled-unicast. The current expectation is that each | |
748 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
749 | */ | |
750 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
751 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
752 | /* We expect prefixes installed with labels and the number to | |
753 | * match | |
754 | * the number of nexthops. | |
755 | */ | |
756 | assert(api->label_num == api->nexthop_num); | |
757 | } | |
758 | ||
759 | zclient_create_header(s, cmd, api->vrf_id); | |
760 | ||
761 | /* Put type and nexthop. */ | |
762 | stream_putc(s, api->type); | |
763 | stream_putw(s, api->instance); | |
764 | stream_putl(s, api->flags); | |
765 | stream_putc(s, api->message); | |
766 | stream_putw(s, api->safi); | |
767 | ||
768 | /* Put prefix information. */ | |
769 | psize = PSIZE(p->prefixlen); | |
770 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 771 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 772 | |
773 | /* Nexthop, ifindex, distance and metric information. */ | |
774 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 775 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 776 | |
777 | for (i = 0; i < api->nexthop_num; i++) { | |
778 | stream_putc(s, NEXTHOP_TYPE_IPV4); | |
779 | stream_put_in_addr(s, api->nexthop[i]); | |
780 | /* For labeled-unicast, each nexthop is followed by | |
781 | * label. */ | |
782 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
783 | stream_putl(s, api->label[i]); | |
784 | } | |
785 | for (i = 0; i < api->ifindex_num; i++) { | |
786 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
787 | stream_putl(s, api->ifindex[i]); | |
788 | } | |
789 | } | |
790 | ||
791 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
792 | stream_putc(s, api->distance); | |
793 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
794 | stream_putl(s, api->metric); | |
795 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
796 | stream_putl(s, api->tag); | |
797 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
798 | stream_putl(s, api->mtu); | |
799 | ||
800 | /* Put length at the first point of the stream. */ | |
801 | stream_putw_at(s, 0, stream_get_endp(s)); | |
802 | ||
803 | return zclient_send_message(zclient); | |
718e3744 | 804 | } |
805 | ||
d7c0a89a | 806 | int zapi_ipv4_route_ipv6_nexthop(uint8_t cmd, struct zclient *zclient, |
d62a17ae | 807 | struct prefix_ipv4 *p, struct zapi_ipv6 *api) |
8a92a8a0 | 808 | { |
d62a17ae | 809 | int i; |
810 | int psize; | |
811 | struct stream *s; | |
812 | ||
813 | /* Reset stream. */ | |
814 | s = zclient->obuf; | |
815 | stream_reset(s); | |
816 | ||
817 | /* Some checks for labeled-unicast. The current expectation is that each | |
818 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
819 | */ | |
820 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
821 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
822 | /* We expect prefixes installed with labels and the number to | |
823 | * match | |
824 | * the number of nexthops. | |
825 | */ | |
826 | assert(api->label_num == api->nexthop_num); | |
8a92a8a0 | 827 | } |
d62a17ae | 828 | |
829 | zclient_create_header(s, cmd, api->vrf_id); | |
830 | ||
831 | /* Put type and nexthop. */ | |
832 | stream_putc(s, api->type); | |
833 | stream_putw(s, api->instance); | |
834 | stream_putl(s, api->flags); | |
835 | stream_putc(s, api->message); | |
836 | stream_putw(s, api->safi); | |
837 | ||
838 | /* Put prefix information. */ | |
839 | psize = PSIZE(p->prefixlen); | |
840 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 841 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 842 | |
843 | /* Nexthop, ifindex, distance and metric information. */ | |
844 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 845 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 846 | |
847 | for (i = 0; i < api->nexthop_num; i++) { | |
848 | stream_putc(s, NEXTHOP_TYPE_IPV6); | |
d7c0a89a | 849 | stream_write(s, (uint8_t *)api->nexthop[i], 16); |
d62a17ae | 850 | /* For labeled-unicast, each nexthop is followed by |
851 | * label. */ | |
852 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
853 | stream_putl(s, api->label[i]); | |
854 | } | |
855 | for (i = 0; i < api->ifindex_num; i++) { | |
856 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
857 | stream_putl(s, api->ifindex[i]); | |
858 | } | |
8a92a8a0 | 859 | } |
8a92a8a0 | 860 | |
d62a17ae | 861 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
862 | stream_putc(s, api->distance); | |
863 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
864 | stream_putl(s, api->metric); | |
865 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
866 | stream_putl(s, api->tag); | |
867 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
868 | stream_putl(s, api->mtu); | |
8a92a8a0 | 869 | |
d62a17ae | 870 | /* Put length at the first point of the stream. */ |
871 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a92a8a0 | 872 | |
d62a17ae | 873 | return zclient_send_message(zclient); |
8a92a8a0 DS |
874 | } |
875 | ||
d7c0a89a | 876 | int zapi_ipv6_route(uint8_t cmd, struct zclient *zclient, struct prefix_ipv6 *p, |
d62a17ae | 877 | struct prefix_ipv6 *src_p, struct zapi_ipv6 *api) |
718e3744 | 878 | { |
d62a17ae | 879 | int i; |
880 | int psize; | |
881 | struct stream *s; | |
882 | ||
883 | /* either we have !SRCPFX && src_p == NULL, or SRCPFX && src_p != NULL | |
884 | */ | |
885 | assert(!(api->message & ZAPI_MESSAGE_SRCPFX) == !src_p); | |
886 | ||
887 | /* Reset stream. */ | |
888 | s = zclient->obuf; | |
889 | stream_reset(s); | |
890 | ||
891 | /* Some checks for labeled-unicast. The current expectation is that each | |
892 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
893 | */ | |
894 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
895 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
896 | /* We expect prefixes installed with labels and the number to | |
897 | * match | |
898 | * the number of nexthops. | |
899 | */ | |
900 | assert(api->label_num == api->nexthop_num); | |
718e3744 | 901 | } |
d62a17ae | 902 | |
903 | zclient_create_header(s, cmd, api->vrf_id); | |
904 | ||
905 | /* Put type and nexthop. */ | |
906 | stream_putc(s, api->type); | |
907 | stream_putw(s, api->instance); | |
908 | stream_putl(s, api->flags); | |
909 | stream_putc(s, api->message); | |
910 | stream_putw(s, api->safi); | |
911 | ||
912 | /* Put prefix information. */ | |
913 | psize = PSIZE(p->prefixlen); | |
914 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 915 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 916 | |
917 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
918 | psize = PSIZE(src_p->prefixlen); | |
919 | stream_putc(s, src_p->prefixlen); | |
d7c0a89a | 920 | stream_write(s, (uint8_t *)&src_p->prefix, psize); |
718e3744 | 921 | } |
718e3744 | 922 | |
d62a17ae | 923 | /* Nexthop, ifindex, distance and metric information. */ |
924 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 925 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 926 | |
927 | for (i = 0; i < api->nexthop_num; i++) { | |
928 | stream_putc(s, NEXTHOP_TYPE_IPV6); | |
d7c0a89a | 929 | stream_write(s, (uint8_t *)api->nexthop[i], 16); |
d62a17ae | 930 | /* For labeled-unicast, each nexthop is followed by |
931 | * label. */ | |
932 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
933 | stream_putl(s, api->label[i]); | |
934 | } | |
935 | for (i = 0; i < api->ifindex_num; i++) { | |
936 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
937 | stream_putl(s, api->ifindex[i]); | |
938 | } | |
939 | } | |
718e3744 | 940 | |
d62a17ae | 941 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
942 | stream_putc(s, api->distance); | |
943 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
944 | stream_putl(s, api->metric); | |
945 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
946 | stream_putl(s, api->tag); | |
947 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
948 | stream_putl(s, api->mtu); | |
718e3744 | 949 | |
d62a17ae | 950 | /* Put length at the first point of the stream. */ |
951 | stream_putw_at(s, 0, stream_get_endp(s)); | |
952 | ||
953 | return zclient_send_message(zclient); | |
718e3744 | 954 | } |
718e3744 | 955 | |
d7c0a89a | 956 | int zclient_route_send(uint8_t cmd, struct zclient *zclient, |
0e51b4a3 | 957 | struct zapi_route *api) |
657cde12 | 958 | { |
0e51b4a3 RW |
959 | if (zapi_route_encode(cmd, zclient->obuf, api) < 0) |
960 | return -1; | |
961 | return zclient_send_message(zclient); | |
962 | } | |
963 | ||
d7c0a89a | 964 | int zapi_route_encode(uint8_t cmd, struct stream *s, struct zapi_route *api) |
0e51b4a3 RW |
965 | { |
966 | struct zapi_nexthop *api_nh; | |
d62a17ae | 967 | int i; |
968 | int psize; | |
d62a17ae | 969 | |
d62a17ae | 970 | stream_reset(s); |
d62a17ae | 971 | zclient_create_header(s, cmd, api->vrf_id); |
972 | ||
d62a17ae | 973 | stream_putc(s, api->type); |
974 | stream_putw(s, api->instance); | |
975 | stream_putl(s, api->flags); | |
976 | stream_putc(s, api->message); | |
832d0f56 | 977 | stream_putc(s, api->safi); |
d62a17ae | 978 | |
979 | /* Put prefix information. */ | |
0e51b4a3 | 980 | stream_putc(s, api->prefix.family); |
bb1b9c47 RW |
981 | psize = PSIZE(api->prefix.prefixlen); |
982 | stream_putc(s, api->prefix.prefixlen); | |
d7c0a89a | 983 | stream_write(s, (uint8_t *)&api->prefix.u.prefix, psize); |
d62a17ae | 984 | |
985 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
bb1b9c47 RW |
986 | psize = PSIZE(api->src_prefix.prefixlen); |
987 | stream_putc(s, api->src_prefix.prefixlen); | |
d7c0a89a | 988 | stream_write(s, (uint8_t *)&api->src_prefix.prefix, psize); |
d62a17ae | 989 | } |
990 | ||
0e51b4a3 | 991 | /* Nexthops. */ |
d62a17ae | 992 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { |
bb1b9c47 RW |
993 | /* limit the number of nexthops if necessary */ |
994 | if (api->nexthop_num > MULTIPATH_NUM) { | |
995 | char buf[PREFIX2STR_BUFFER]; | |
996 | ||
997 | prefix2str(&api->prefix, buf, sizeof(buf)); | |
998 | zlog_warn( | |
a74e593b RW |
999 | "%s: prefix %s: can't encode %u nexthops " |
1000 | "(maximum is %u)", | |
1001 | __func__, buf, api->nexthop_num, MULTIPATH_NUM); | |
1002 | return -1; | |
bb1b9c47 RW |
1003 | } |
1004 | ||
b5f79651 | 1005 | stream_putw(s, api->nexthop_num); |
d62a17ae | 1006 | |
1007 | for (i = 0; i < api->nexthop_num; i++) { | |
bb1b9c47 RW |
1008 | api_nh = &api->nexthops[i]; |
1009 | ||
4a7371e9 | 1010 | stream_putl(s, api_nh->vrf_id); |
bb1b9c47 RW |
1011 | stream_putc(s, api_nh->type); |
1012 | switch (api_nh->type) { | |
d62a17ae | 1013 | case NEXTHOP_TYPE_BLACKHOLE: |
94758e66 | 1014 | stream_putc(s, api_nh->bh_type); |
d62a17ae | 1015 | break; |
1016 | case NEXTHOP_TYPE_IPV4: | |
bb1b9c47 | 1017 | stream_put_in_addr(s, &api_nh->gate.ipv4); |
d62a17ae | 1018 | break; |
1019 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
bb1b9c47 RW |
1020 | stream_put_in_addr(s, &api_nh->gate.ipv4); |
1021 | stream_putl(s, api_nh->ifindex); | |
d62a17ae | 1022 | break; |
1023 | case NEXTHOP_TYPE_IFINDEX: | |
bb1b9c47 | 1024 | stream_putl(s, api_nh->ifindex); |
d62a17ae | 1025 | break; |
1026 | case NEXTHOP_TYPE_IPV6: | |
d7c0a89a | 1027 | stream_write(s, (uint8_t *)&api_nh->gate.ipv6, |
bb1b9c47 | 1028 | 16); |
d62a17ae | 1029 | break; |
1030 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
d7c0a89a | 1031 | stream_write(s, (uint8_t *)&api_nh->gate.ipv6, |
bb1b9c47 RW |
1032 | 16); |
1033 | stream_putl(s, api_nh->ifindex); | |
d62a17ae | 1034 | break; |
ec93aa12 | 1035 | default: |
996c9314 LB |
1036 | zlog_warn( |
1037 | "%s: Specified Nexthop type %d does not exist", | |
1038 | __PRETTY_FUNCTION__, api_nh->type); | |
ec93aa12 | 1039 | return -1; |
d62a17ae | 1040 | } |
bb1b9c47 | 1041 | |
52dd3aa4 RW |
1042 | /* MPLS labels for BGP-LU or Segment Routing */ |
1043 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) { | |
1044 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1045 | char buf[PREFIX2STR_BUFFER]; | |
1046 | prefix2str(&api->prefix, buf, | |
1047 | sizeof(buf)); | |
1048 | zlog_err( | |
1049 | "%s: prefix %s: can't encode " | |
1050 | "%u labels (maximum is %u)", | |
1051 | __func__, buf, | |
1052 | api_nh->label_num, | |
1053 | MPLS_MAX_LABELS); | |
1054 | return -1; | |
1055 | } | |
1056 | ||
1057 | stream_putc(s, api_nh->label_num); | |
1058 | stream_put(s, &api_nh->labels[0], | |
1059 | api_nh->label_num | |
1060 | * sizeof(mpls_label_t)); | |
1061 | } | |
a317a9b9 | 1062 | |
1063 | /* Router MAC for EVPN routes. */ | |
1064 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
1065 | stream_put(s, &(api_nh->rmac), | |
1066 | sizeof(struct ethaddr)); | |
d62a17ae | 1067 | } |
1068 | } | |
1069 | ||
0e51b4a3 | 1070 | /* Attributes. */ |
d62a17ae | 1071 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
1072 | stream_putc(s, api->distance); | |
1073 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
1074 | stream_putl(s, api->metric); | |
1075 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
1076 | stream_putl(s, api->tag); | |
1077 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
1078 | stream_putl(s, api->mtu); | |
ba1849ef DS |
1079 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1080 | stream_putl(s, api->tableid); | |
d62a17ae | 1081 | |
1082 | /* Put length at the first point of the stream. */ | |
1083 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1084 | ||
0e51b4a3 RW |
1085 | return 0; |
1086 | } | |
1087 | ||
1088 | int zapi_route_decode(struct stream *s, struct zapi_route *api) | |
1089 | { | |
1090 | struct zapi_nexthop *api_nh; | |
1091 | int i; | |
1092 | ||
1093 | memset(api, 0, sizeof(*api)); | |
1094 | ||
1095 | /* Type, flags, message. */ | |
ec93aa12 DS |
1096 | STREAM_GETC(s, api->type); |
1097 | if (api->type > ZEBRA_ROUTE_MAX) { | |
1098 | zlog_warn("%s: Specified route type: %d is not a legal value\n", | |
996c9314 | 1099 | __PRETTY_FUNCTION__, api->type); |
ec93aa12 DS |
1100 | return -1; |
1101 | } | |
1102 | ||
1103 | STREAM_GETW(s, api->instance); | |
1104 | STREAM_GETL(s, api->flags); | |
1105 | STREAM_GETC(s, api->message); | |
832d0f56 | 1106 | STREAM_GETC(s, api->safi); |
0e51b4a3 RW |
1107 | |
1108 | /* Prefix. */ | |
ec93aa12 DS |
1109 | STREAM_GETC(s, api->prefix.family); |
1110 | STREAM_GETC(s, api->prefix.prefixlen); | |
0e51b4a3 RW |
1111 | switch (api->prefix.family) { |
1112 | case AF_INET: | |
ec93aa12 | 1113 | if (api->prefix.prefixlen > IPV4_MAX_PREFIXLEN) { |
996c9314 LB |
1114 | zlog_warn( |
1115 | "%s: V4 prefixlen is %d which should not be more than 32", | |
1116 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1117 | return -1; |
1118 | } | |
0e51b4a3 RW |
1119 | break; |
1120 | case AF_INET6: | |
ec93aa12 | 1121 | if (api->prefix.prefixlen > IPV6_MAX_PREFIXLEN) { |
996c9314 LB |
1122 | zlog_warn( |
1123 | "%s: v6 prefixlen is %d which should not be more than 128", | |
1124 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1125 | return -1; |
1126 | } | |
0e51b4a3 | 1127 | break; |
ec93aa12 DS |
1128 | default: |
1129 | zlog_warn("%s: Specified family %d is not v4 or v6", | |
1130 | __PRETTY_FUNCTION__, api->prefix.family); | |
1131 | return -1; | |
0e51b4a3 | 1132 | } |
ec93aa12 DS |
1133 | STREAM_GET(&api->prefix.u.prefix, s, PSIZE(api->prefix.prefixlen)); |
1134 | ||
0e51b4a3 RW |
1135 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { |
1136 | api->src_prefix.family = AF_INET6; | |
ec93aa12 DS |
1137 | STREAM_GETC(s, api->src_prefix.prefixlen); |
1138 | if (api->src_prefix.prefixlen > IPV6_MAX_PREFIXLEN) { | |
996c9314 LB |
1139 | zlog_warn( |
1140 | "%s: SRC Prefix prefixlen received: %d is too large", | |
1141 | __PRETTY_FUNCTION__, api->src_prefix.prefixlen); | |
ec93aa12 DS |
1142 | return -1; |
1143 | } | |
1144 | STREAM_GET(&api->src_prefix.prefix, s, | |
0e51b4a3 RW |
1145 | PSIZE(api->src_prefix.prefixlen)); |
1146 | ||
1147 | if (api->prefix.family != AF_INET6 | |
ec93aa12 | 1148 | || api->src_prefix.prefixlen == 0) { |
996c9314 LB |
1149 | zlog_warn( |
1150 | "%s: SRC prefix specified in some manner that makes no sense", | |
1151 | __PRETTY_FUNCTION__); | |
ec93aa12 DS |
1152 | return -1; |
1153 | } | |
0e51b4a3 RW |
1154 | } |
1155 | ||
1156 | /* Nexthops. */ | |
1157 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
ec93aa12 | 1158 | STREAM_GETW(s, api->nexthop_num); |
0e51b4a3 RW |
1159 | if (api->nexthop_num > MULTIPATH_NUM) { |
1160 | zlog_warn("%s: invalid number of nexthops (%u)", | |
1161 | __func__, api->nexthop_num); | |
1162 | return -1; | |
1163 | } | |
1164 | ||
1165 | for (i = 0; i < api->nexthop_num; i++) { | |
1166 | api_nh = &api->nexthops[i]; | |
1167 | ||
4a7371e9 | 1168 | STREAM_GETL(s, api_nh->vrf_id); |
ec93aa12 | 1169 | STREAM_GETC(s, api_nh->type); |
0e51b4a3 RW |
1170 | switch (api_nh->type) { |
1171 | case NEXTHOP_TYPE_BLACKHOLE: | |
ec93aa12 | 1172 | STREAM_GETC(s, api_nh->bh_type); |
0e51b4a3 RW |
1173 | break; |
1174 | case NEXTHOP_TYPE_IPV4: | |
ec93aa12 DS |
1175 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, |
1176 | IPV4_MAX_BYTELEN); | |
0e51b4a3 RW |
1177 | break; |
1178 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
ec93aa12 DS |
1179 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, |
1180 | IPV4_MAX_BYTELEN); | |
1181 | STREAM_GETL(s, api_nh->ifindex); | |
0e51b4a3 RW |
1182 | break; |
1183 | case NEXTHOP_TYPE_IFINDEX: | |
ec93aa12 | 1184 | STREAM_GETL(s, api_nh->ifindex); |
0e51b4a3 RW |
1185 | break; |
1186 | case NEXTHOP_TYPE_IPV6: | |
ec93aa12 | 1187 | STREAM_GET(&api_nh->gate.ipv6, s, 16); |
0e51b4a3 RW |
1188 | break; |
1189 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
ec93aa12 DS |
1190 | STREAM_GET(&api_nh->gate.ipv6, s, 16); |
1191 | STREAM_GETL(s, api_nh->ifindex); | |
0e51b4a3 | 1192 | break; |
ec93aa12 | 1193 | default: |
996c9314 LB |
1194 | zlog_warn( |
1195 | "%s: Specified nexthop type %d does not exist", | |
1196 | __PRETTY_FUNCTION__, api_nh->type); | |
ec93aa12 | 1197 | return -1; |
0e51b4a3 RW |
1198 | } |
1199 | ||
52dd3aa4 | 1200 | /* MPLS labels for BGP-LU or Segment Routing */ |
0e51b4a3 | 1201 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) { |
ec93aa12 | 1202 | STREAM_GETC(s, api_nh->label_num); |
52dd3aa4 RW |
1203 | |
1204 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1205 | zlog_warn( | |
1206 | "%s: invalid number of MPLS " | |
1207 | "labels (%u)", | |
1208 | __func__, api_nh->label_num); | |
1209 | return -1; | |
1210 | } | |
1211 | ||
ec93aa12 | 1212 | STREAM_GET(&api_nh->labels[0], s, |
52dd3aa4 RW |
1213 | api_nh->label_num |
1214 | * sizeof(mpls_label_t)); | |
0e51b4a3 | 1215 | } |
a317a9b9 | 1216 | |
1217 | /* Router MAC for EVPN routes. */ | |
1218 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
1219 | stream_get(&(api_nh->rmac), s, | |
1220 | sizeof(struct ethaddr)); | |
0e51b4a3 RW |
1221 | } |
1222 | } | |
1223 | ||
1224 | /* Attributes. */ | |
1225 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
ec93aa12 | 1226 | STREAM_GETC(s, api->distance); |
0e51b4a3 | 1227 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) |
ec93aa12 | 1228 | STREAM_GETL(s, api->metric); |
0e51b4a3 | 1229 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) |
ec93aa12 | 1230 | STREAM_GETL(s, api->tag); |
0e51b4a3 | 1231 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) |
ec93aa12 | 1232 | STREAM_GETL(s, api->mtu); |
ba1849ef DS |
1233 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1234 | STREAM_GETL(s, api->tableid); | |
0e51b4a3 | 1235 | |
ec93aa12 | 1236 | stream_failure: |
0e51b4a3 | 1237 | return 0; |
657cde12 DS |
1238 | } |
1239 | ||
0313523d FR |
1240 | static void zapi_encode_prefix(struct stream *s, struct prefix *p, |
1241 | uint8_t family) | |
0031a6bb PG |
1242 | { |
1243 | struct prefix any; | |
1244 | ||
1245 | if (!p) { | |
1246 | memset(&any, 0, sizeof(any)); | |
1247 | any.family = family; | |
1248 | p = &any; | |
1249 | } | |
1250 | ||
1251 | stream_putc(s, p->family); | |
1252 | stream_putc(s, p->prefixlen); | |
1253 | stream_put(s, &p->u.prefix, prefix_blen(p)); | |
1254 | } | |
1255 | ||
0313523d | 1256 | int zapi_pbr_rule_encode(uint8_t cmd, struct stream *s, struct pbr_rule *zrule) |
0031a6bb PG |
1257 | { |
1258 | stream_reset(s); | |
1259 | zclient_create_header(s, cmd, zrule->vrf_id); | |
1260 | ||
1261 | /* | |
1262 | * We are sending one item at a time at the moment | |
1263 | */ | |
1264 | stream_putl(s, 1); | |
1265 | ||
1266 | stream_putl(s, zrule->seq); | |
1267 | stream_putl(s, zrule->priority); | |
1268 | stream_putl(s, zrule->unique); | |
1269 | ||
1270 | zapi_encode_prefix(s, &(zrule->filter.src_ip), | |
1271 | zrule->filter.src_ip.family); | |
0313523d | 1272 | stream_putw(s, zrule->filter.src_port); /* src port */ |
0031a6bb PG |
1273 | zapi_encode_prefix(s, &(zrule->filter.dst_ip), |
1274 | zrule->filter.src_ip.family); | |
0313523d FR |
1275 | stream_putw(s, zrule->filter.dst_port); /* dst port */ |
1276 | stream_putw(s, zrule->filter.fwmark); /* fwmark */ | |
0031a6bb PG |
1277 | |
1278 | stream_putl(s, zrule->action.table); | |
1279 | stream_putl(s, zrule->ifindex); | |
1280 | ||
1281 | /* Put length at the first point of the stream. */ | |
1282 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1283 | ||
1284 | return 0; | |
1285 | } | |
1286 | ||
7ea7b86e | 1287 | bool zapi_route_notify_decode(struct stream *s, struct prefix *p, |
28610f7e | 1288 | uint32_t *tableid, |
7ea7b86e DS |
1289 | enum zapi_route_notify_owner *note) |
1290 | { | |
7a1eb44b DS |
1291 | uint32_t t; |
1292 | ||
7ea7b86e DS |
1293 | STREAM_GET(note, s, sizeof(*note)); |
1294 | ||
1295 | STREAM_GETC(s, p->family); | |
1296 | STREAM_GETC(s, p->prefixlen); | |
996c9314 | 1297 | STREAM_GET(&p->u.prefix, s, prefix_blen(p)); |
7a1eb44b DS |
1298 | STREAM_GETL(s, t); |
1299 | ||
1300 | *tableid = t; | |
7ea7b86e DS |
1301 | |
1302 | return true; | |
1303 | ||
1304 | stream_failure: | |
1305 | return false; | |
1306 | } | |
1307 | ||
b6c5d343 DS |
1308 | bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno, |
1309 | uint32_t *priority, uint32_t *unique, | |
1310 | ifindex_t *ifindex, | |
1311 | enum zapi_rule_notify_owner *note) | |
1312 | { | |
1313 | uint32_t prio, seq, uni; | |
1314 | ifindex_t ifi; | |
1315 | ||
1316 | STREAM_GET(note, s, sizeof(*note)); | |
1317 | ||
1318 | STREAM_GETL(s, seq); | |
1319 | STREAM_GETL(s, prio); | |
1320 | STREAM_GETL(s, uni); | |
1321 | STREAM_GETL(s, ifi); | |
1322 | ||
1323 | if (zclient_debug) | |
0313523d FR |
1324 | zlog_debug("%s: %u %u %u %u", __PRETTY_FUNCTION__, seq, prio, |
1325 | uni, ifi); | |
b6c5d343 DS |
1326 | *seqno = seq; |
1327 | *priority = prio; | |
1328 | *unique = uni; | |
1329 | *ifindex = ifi; | |
1330 | ||
1331 | return true; | |
1332 | ||
1333 | stream_failure: | |
1334 | return false; | |
1335 | } | |
1336 | ||
0313523d FR |
1337 | bool zapi_ipset_notify_decode(struct stream *s, uint32_t *unique, |
1338 | enum zapi_ipset_notify_owner *note) | |
425bdd6b PG |
1339 | { |
1340 | uint32_t uni; | |
1341 | ||
1342 | STREAM_GET(note, s, sizeof(*note)); | |
1343 | ||
1344 | STREAM_GETL(s, uni); | |
1345 | ||
1346 | if (zclient_debug) | |
1347 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1348 | *unique = uni; | |
1349 | ||
1350 | return true; | |
1351 | ||
1352 | stream_failure: | |
1353 | return false; | |
1354 | } | |
1355 | ||
0313523d FR |
1356 | bool zapi_ipset_entry_notify_decode(struct stream *s, uint32_t *unique, |
1357 | char *ipset_name, | |
1358 | enum zapi_ipset_entry_notify_owner *note) | |
425bdd6b PG |
1359 | { |
1360 | uint32_t uni; | |
1361 | ||
1362 | STREAM_GET(note, s, sizeof(*note)); | |
1363 | ||
1364 | STREAM_GETL(s, uni); | |
1365 | ||
0313523d | 1366 | STREAM_GET(ipset_name, s, ZEBRA_IPSET_NAME_SIZE); |
425bdd6b PG |
1367 | |
1368 | if (zclient_debug) | |
1369 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1370 | *unique = uni; | |
1371 | ||
1372 | return true; | |
1373 | ||
1374 | stream_failure: | |
1375 | return false; | |
1376 | } | |
1377 | ||
c16a0a62 PG |
1378 | bool zapi_iptable_notify_decode(struct stream *s, |
1379 | uint32_t *unique, | |
1380 | enum zapi_iptable_notify_owner *note) | |
1381 | { | |
1382 | uint32_t uni; | |
1383 | ||
1384 | STREAM_GET(note, s, sizeof(*note)); | |
1385 | ||
1386 | STREAM_GETL(s, uni); | |
1387 | ||
1388 | if (zclient_debug) | |
1389 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1390 | *unique = uni; | |
1391 | ||
1392 | return true; | |
1393 | ||
1394 | stream_failure: | |
1395 | return false; | |
1396 | } | |
1397 | ||
4a749e2c DS |
1398 | struct nexthop *nexthop_from_zapi_nexthop(struct zapi_nexthop *znh) |
1399 | { | |
1400 | struct nexthop *n = nexthop_new(); | |
1401 | ||
1402 | n->type = znh->type; | |
4a7371e9 | 1403 | n->vrf_id = znh->vrf_id; |
4a749e2c DS |
1404 | n->ifindex = znh->ifindex; |
1405 | n->gate = znh->gate; | |
1406 | ||
1407 | /* | |
960035b2 | 1408 | * This function currently handles labels |
4a749e2c | 1409 | */ |
960035b2 PZ |
1410 | if (znh->label_num) { |
1411 | nexthop_add_labels(n, ZEBRA_LSP_NONE, znh->label_num, | |
0313523d | 1412 | znh->labels); |
960035b2 | 1413 | } |
4a749e2c DS |
1414 | |
1415 | return n; | |
1416 | } | |
1417 | ||
1418 | bool zapi_nexthop_update_decode(struct stream *s, struct zapi_route *nhr) | |
1419 | { | |
1420 | uint32_t i; | |
1421 | ||
1422 | memset(nhr, 0, sizeof(*nhr)); | |
1423 | ||
1424 | STREAM_GETW(s, nhr->prefix.family); | |
1425 | STREAM_GETC(s, nhr->prefix.prefixlen); | |
996c9314 | 1426 | switch (nhr->prefix.family) { |
4a749e2c DS |
1427 | case AF_INET: |
1428 | STREAM_GET(&nhr->prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1429 | break; | |
1430 | case AF_INET6: | |
1431 | STREAM_GET(&nhr->prefix.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1432 | break; | |
1433 | default: | |
1434 | break; | |
1435 | } | |
1436 | ||
05dd5aaf DS |
1437 | STREAM_GETC(s, nhr->type); |
1438 | STREAM_GETW(s, nhr->instance); | |
4a749e2c DS |
1439 | STREAM_GETC(s, nhr->distance); |
1440 | STREAM_GETL(s, nhr->metric); | |
1441 | STREAM_GETC(s, nhr->nexthop_num); | |
1442 | ||
996c9314 | 1443 | for (i = 0; i < nhr->nexthop_num; i++) { |
4a749e2c DS |
1444 | STREAM_GETC(s, nhr->nexthops[i].type); |
1445 | switch (nhr->nexthops[i].type) { | |
1446 | case NEXTHOP_TYPE_IPV4: | |
1447 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
996c9314 LB |
1448 | STREAM_GET(&nhr->nexthops[i].gate.ipv4.s_addr, s, |
1449 | IPV4_MAX_BYTELEN); | |
4a749e2c DS |
1450 | STREAM_GETL(s, nhr->nexthops[i].ifindex); |
1451 | break; | |
1452 | case NEXTHOP_TYPE_IFINDEX: | |
1453 | STREAM_GETL(s, nhr->nexthops[i].ifindex); | |
1454 | break; | |
1455 | case NEXTHOP_TYPE_IPV6: | |
1456 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
996c9314 LB |
1457 | STREAM_GET(&nhr->nexthops[i].gate.ipv6, s, |
1458 | IPV6_MAX_BYTELEN); | |
4a749e2c DS |
1459 | STREAM_GETL(s, nhr->nexthops[i].ifindex); |
1460 | break; | |
1461 | case NEXTHOP_TYPE_BLACKHOLE: | |
1462 | break; | |
1463 | } | |
0acf4df0 DS |
1464 | STREAM_GETC(s, nhr->nexthops[i].label_num); |
1465 | if (nhr->nexthops[i].label_num > MPLS_MAX_LABELS) { | |
1466 | zlog_warn("%s: invalid number of MPLS labels (%u)", | |
1467 | __func__, nhr->nexthops[i].label_num); | |
1468 | return false; | |
1469 | } | |
1470 | if (nhr->nexthops[i].label_num) | |
1471 | STREAM_GET(&nhr->nexthops[i].labels[0], s, | |
1472 | nhr->nexthops[i].label_num | |
0313523d | 1473 | * sizeof(mpls_label_t)); |
4a749e2c DS |
1474 | } |
1475 | ||
1476 | return true; | |
1477 | stream_failure: | |
1478 | return false; | |
1479 | } | |
1480 | ||
d62a17ae | 1481 | /* |
0a589359 | 1482 | * send a ZEBRA_REDISTRIBUTE_ADD or ZEBRA_REDISTRIBUTE_DELETE |
1483 | * for the route type (ZEBRA_ROUTE_KERNEL etc.). The zebra server will | |
d62a17ae | 1484 | * then set/unset redist[type] in the client handle (a struct zserv) for the |
0a589359 | 1485 | * sending client |
1486 | */ | |
d62a17ae | 1487 | int zebra_redistribute_send(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 1488 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 1489 | { |
d62a17ae | 1490 | struct stream *s; |
1491 | ||
1492 | s = zclient->obuf; | |
1493 | stream_reset(s); | |
1494 | ||
1495 | zclient_create_header(s, command, vrf_id); | |
1496 | stream_putc(s, afi); | |
1497 | stream_putc(s, type); | |
1498 | stream_putw(s, instance); | |
1499 | ||
1500 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1501 | ||
1502 | return zclient_send_message(zclient); | |
718e3744 | 1503 | } |
1504 | ||
d9178828 | 1505 | /* Get prefix in ZServ format; family should be filled in on prefix */ |
d62a17ae | 1506 | static void zclient_stream_get_prefix(struct stream *s, struct prefix *p) |
d9178828 | 1507 | { |
d62a17ae | 1508 | size_t plen = prefix_blen(p); |
d7c0a89a | 1509 | uint8_t c; |
d62a17ae | 1510 | p->prefixlen = 0; |
1511 | ||
1512 | if (plen == 0) | |
1513 | return; | |
1514 | ||
1515 | stream_get(&p->u.prefix, s, plen); | |
ec93aa12 | 1516 | STREAM_GETC(s, c); |
d62a17ae | 1517 | p->prefixlen = MIN(plen * 8, c); |
ec93aa12 DS |
1518 | |
1519 | stream_failure: | |
1520 | return; | |
d9178828 PJ |
1521 | } |
1522 | ||
18a6dce6 | 1523 | /* Router-id update from zebra daemon. */ |
d62a17ae | 1524 | void zebra_router_id_update_read(struct stream *s, struct prefix *rid) |
18a6dce6 | 1525 | { |
d62a17ae | 1526 | /* Fetch interface address. */ |
ec93aa12 | 1527 | STREAM_GETC(s, rid->family); |
d62a17ae | 1528 | |
1529 | zclient_stream_get_prefix(s, rid); | |
ec93aa12 DS |
1530 | |
1531 | stream_failure: | |
1532 | return; | |
18a6dce6 | 1533 | } |
1534 | ||
718e3744 | 1535 | /* Interface addition from zebra daemon. */ |
d62a17ae | 1536 | /* |
0a589359 | 1537 | * The format of the message sent with type ZEBRA_INTERFACE_ADD or |
1538 | * ZEBRA_INTERFACE_DELETE from zebra to the client is: | |
1539 | * 0 1 2 3 | |
1540 | * 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 | 1541 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1542 | * | ifname | | |
1543 | * | | | |
1544 | * | | | |
1545 | * | | | |
1546 | * | | | |
1547 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1548 | * | ifindex | |
1549 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1550 | * | status | | |
0a589359 | 1551 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1552 | * | if_flags | |
c77d4546 | 1553 | * | | |
0a589359 | 1554 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1555 | * | metric | |
1556 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2d7f0d76 DS |
1557 | * | speed | |
1558 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1559 | * | ifmtu | |
1560 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1561 | * | ifmtu6 | | |
1562 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1563 | * | bandwidth | | |
1564 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1565 | * | Link Layer Type | | |
0a589359 | 1566 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1567 | * | Harware Address Length | |
0a589359 | 1568 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1569 | * | Hardware Address if HW lenght different from 0 | |
1570 | * | ... max INTERFACE_HWADDR_MAX | | |
0a589359 | 1571 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1572 | * | Link_params? | Whether a link-params follows: 1 or 0. |
0a589359 | 1573 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1574 | * | Link_params 0 or 1 INTERFACE_LINK_PARAMS_SIZE sized | |
1575 | * | .... (struct if_link_params). | | |
0a589359 | 1576 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1577 | */ | |
1578 | ||
d62a17ae | 1579 | static void zclient_vrf_add(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1580 | { |
d62a17ae | 1581 | struct vrf *vrf; |
1582 | char vrfname_tmp[VRF_NAMSIZ]; | |
1583 | struct vrf_data data; | |
1892f15e | 1584 | |
d62a17ae | 1585 | stream_get(&data, zclient->ibuf, sizeof(struct vrf_data)); |
1586 | /* Read interface name. */ | |
1587 | stream_get(vrfname_tmp, zclient->ibuf, VRF_NAMSIZ); | |
1892f15e | 1588 | |
d62a17ae | 1589 | /* Lookup/create vrf by vrf_id. */ |
1590 | vrf = vrf_get(vrf_id, vrfname_tmp); | |
4691b65a PG |
1591 | vrf->data.l.table_id = data.l.table_id; |
1592 | memcpy(vrf->data.l.netns_name, data.l.netns_name, NS_NAMSIZ); | |
d62a17ae | 1593 | vrf_enable(vrf); |
1892f15e DS |
1594 | } |
1595 | ||
d62a17ae | 1596 | static void zclient_vrf_delete(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1597 | { |
d62a17ae | 1598 | struct vrf *vrf; |
1892f15e | 1599 | |
d62a17ae | 1600 | /* Lookup vrf by vrf_id. */ |
1601 | vrf = vrf_lookup_by_id(vrf_id); | |
1892f15e | 1602 | |
d62a17ae | 1603 | /* |
1604 | * If a routing protocol doesn't know about a | |
1605 | * vrf that is about to be deleted. There is | |
1606 | * no point in attempting to delete it. | |
1607 | */ | |
1608 | if (!vrf) | |
1609 | return; | |
beef1990 | 1610 | |
d62a17ae | 1611 | vrf_delete(vrf); |
1892f15e DS |
1612 | } |
1613 | ||
d62a17ae | 1614 | struct interface *zebra_interface_add_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1615 | { |
d62a17ae | 1616 | struct interface *ifp; |
1617 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
718e3744 | 1618 | |
d62a17ae | 1619 | /* Read interface name. */ |
1620 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
718e3744 | 1621 | |
d62a17ae | 1622 | /* Lookup/create interface by name. */ |
bcc24579 | 1623 | ifp = if_get_by_name(ifname_tmp, vrf_id, 0); |
718e3744 | 1624 | |
d62a17ae | 1625 | zebra_interface_if_set_value(s, ifp); |
718e3744 | 1626 | |
d62a17ae | 1627 | return ifp; |
718e3744 | 1628 | } |
1629 | ||
d62a17ae | 1630 | /* |
0a589359 | 1631 | * Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN) |
1632 | * from zebra server. The format of this message is the same as | |
1633 | * that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE (see | |
1634 | * comments for zebra_interface_add_read), except that no sockaddr_dl | |
1635 | * is sent at the tail of the message. | |
1636 | */ | |
d62a17ae | 1637 | struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1638 | { |
d62a17ae | 1639 | struct interface *ifp; |
1640 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
1641 | ||
1642 | /* Read interface name. */ | |
1643 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
1644 | ||
1645 | /* Lookup this by interface index. */ | |
bcc24579 | 1646 | ifp = if_lookup_by_name(ifname_tmp, vrf_id); |
d62a17ae | 1647 | if (ifp == NULL) { |
1648 | zlog_warn("INTERFACE_STATE: Cannot find IF %s in VRF %d", | |
1649 | ifname_tmp, vrf_id); | |
1650 | return NULL; | |
1651 | } | |
1652 | ||
1653 | zebra_interface_if_set_value(s, ifp); | |
1654 | ||
1655 | return ifp; | |
718e3744 | 1656 | } |
1657 | ||
d62a17ae | 1658 | static void link_params_set_value(struct stream *s, struct if_link_params *iflp) |
16f1b9ee OD |
1659 | { |
1660 | ||
d62a17ae | 1661 | if (iflp == NULL) |
1662 | return; | |
1663 | ||
1664 | iflp->lp_status = stream_getl(s); | |
1665 | iflp->te_metric = stream_getl(s); | |
1666 | iflp->max_bw = stream_getf(s); | |
1667 | iflp->max_rsv_bw = stream_getf(s); | |
1668 | uint32_t bwclassnum = stream_getl(s); | |
1669 | { | |
1670 | unsigned int i; | |
1671 | for (i = 0; i < bwclassnum && i < MAX_CLASS_TYPE; i++) | |
1672 | iflp->unrsv_bw[i] = stream_getf(s); | |
1673 | if (i < bwclassnum) | |
1674 | zlog_err( | |
1675 | "%s: received %d > %d (MAX_CLASS_TYPE) bw entries" | |
1676 | " - outdated library?", | |
1677 | __func__, bwclassnum, MAX_CLASS_TYPE); | |
1678 | } | |
1679 | iflp->admin_grp = stream_getl(s); | |
1680 | iflp->rmt_as = stream_getl(s); | |
1681 | iflp->rmt_ip.s_addr = stream_get_ipv4(s); | |
1682 | ||
1683 | iflp->av_delay = stream_getl(s); | |
1684 | iflp->min_delay = stream_getl(s); | |
1685 | iflp->max_delay = stream_getl(s); | |
1686 | iflp->delay_var = stream_getl(s); | |
1687 | ||
1688 | iflp->pkt_loss = stream_getf(s); | |
1689 | iflp->res_bw = stream_getf(s); | |
1690 | iflp->ava_bw = stream_getf(s); | |
1691 | iflp->use_bw = stream_getf(s); | |
16f1b9ee OD |
1692 | } |
1693 | ||
d62a17ae | 1694 | struct interface *zebra_interface_link_params_read(struct stream *s) |
16f1b9ee | 1695 | { |
d62a17ae | 1696 | struct if_link_params *iflp; |
1697 | ifindex_t ifindex; | |
c28e5b2a | 1698 | |
d62a17ae | 1699 | assert(s); |
c28e5b2a | 1700 | |
d62a17ae | 1701 | ifindex = stream_getl(s); |
16f1b9ee | 1702 | |
d62a17ae | 1703 | struct interface *ifp = if_lookup_by_index(ifindex, VRF_DEFAULT); |
16f1b9ee | 1704 | |
d62a17ae | 1705 | if (ifp == NULL) { |
1706 | zlog_err("%s: unknown ifindex %u, shouldn't happen", __func__, | |
1707 | ifindex); | |
1708 | return NULL; | |
1709 | } | |
16f1b9ee | 1710 | |
d62a17ae | 1711 | if ((iflp = if_link_params_get(ifp)) == NULL) |
1712 | return NULL; | |
16f1b9ee | 1713 | |
d62a17ae | 1714 | link_params_set_value(s, iflp); |
16f1b9ee | 1715 | |
d62a17ae | 1716 | return ifp; |
16f1b9ee OD |
1717 | } |
1718 | ||
d62a17ae | 1719 | void zebra_interface_if_set_value(struct stream *s, struct interface *ifp) |
16f1b9ee | 1720 | { |
d7c0a89a | 1721 | uint8_t link_params_status = 0; |
98cbbaea | 1722 | ifindex_t old_ifindex; |
d62a17ae | 1723 | |
98cbbaea | 1724 | old_ifindex = ifp->ifindex; |
d62a17ae | 1725 | /* Read interface's index. */ |
ff880b78 | 1726 | if_set_index(ifp, stream_getl(s)); |
d62a17ae | 1727 | ifp->status = stream_getc(s); |
1728 | ||
1729 | /* Read interface's value. */ | |
1730 | ifp->flags = stream_getq(s); | |
1731 | ifp->ptm_enable = stream_getc(s); | |
1732 | ifp->ptm_status = stream_getc(s); | |
1733 | ifp->metric = stream_getl(s); | |
1734 | ifp->speed = stream_getl(s); | |
1735 | ifp->mtu = stream_getl(s); | |
1736 | ifp->mtu6 = stream_getl(s); | |
1737 | ifp->bandwidth = stream_getl(s); | |
1738 | ifp->ll_type = stream_getl(s); | |
1739 | ifp->hw_addr_len = stream_getl(s); | |
1740 | if (ifp->hw_addr_len) | |
1741 | stream_get(ifp->hw_addr, s, | |
1742 | MIN(ifp->hw_addr_len, INTERFACE_HWADDR_MAX)); | |
1743 | ||
1744 | /* Read Traffic Engineering status */ | |
1745 | link_params_status = stream_getc(s); | |
1746 | /* Then, Traffic Engineering parameters if any */ | |
1747 | if (link_params_status) { | |
1748 | struct if_link_params *iflp = if_link_params_get(ifp); | |
1749 | link_params_set_value(s, iflp); | |
1750 | } | |
98cbbaea DS |
1751 | |
1752 | nexthop_group_interface_state_change(ifp, old_ifindex); | |
16f1b9ee OD |
1753 | } |
1754 | ||
d62a17ae | 1755 | size_t zebra_interface_link_params_write(struct stream *s, |
1756 | struct interface *ifp) | |
16f1b9ee | 1757 | { |
d62a17ae | 1758 | size_t w; |
1759 | struct if_link_params *iflp; | |
1760 | int i; | |
16f1b9ee | 1761 | |
d62a17ae | 1762 | if (s == NULL || ifp == NULL || ifp->link_params == NULL) |
1763 | return 0; | |
16f1b9ee | 1764 | |
d62a17ae | 1765 | iflp = ifp->link_params; |
1766 | w = 0; | |
16f1b9ee | 1767 | |
d62a17ae | 1768 | w += stream_putl(s, iflp->lp_status); |
16f1b9ee | 1769 | |
d62a17ae | 1770 | w += stream_putl(s, iflp->te_metric); |
1771 | w += stream_putf(s, iflp->max_bw); | |
1772 | w += stream_putf(s, iflp->max_rsv_bw); | |
16f1b9ee | 1773 | |
d62a17ae | 1774 | w += stream_putl(s, MAX_CLASS_TYPE); |
1775 | for (i = 0; i < MAX_CLASS_TYPE; i++) | |
1776 | w += stream_putf(s, iflp->unrsv_bw[i]); | |
16f1b9ee | 1777 | |
d62a17ae | 1778 | w += stream_putl(s, iflp->admin_grp); |
1779 | w += stream_putl(s, iflp->rmt_as); | |
1780 | w += stream_put_in_addr(s, &iflp->rmt_ip); | |
16f1b9ee | 1781 | |
d62a17ae | 1782 | w += stream_putl(s, iflp->av_delay); |
1783 | w += stream_putl(s, iflp->min_delay); | |
1784 | w += stream_putl(s, iflp->max_delay); | |
1785 | w += stream_putl(s, iflp->delay_var); | |
16f1b9ee | 1786 | |
d62a17ae | 1787 | w += stream_putf(s, iflp->pkt_loss); |
1788 | w += stream_putf(s, iflp->res_bw); | |
1789 | w += stream_putf(s, iflp->ava_bw); | |
1790 | w += stream_putf(s, iflp->use_bw); | |
16f1b9ee | 1791 | |
d62a17ae | 1792 | return w; |
16f1b9ee OD |
1793 | } |
1794 | ||
1795 | /* | |
0a589359 | 1796 | * format of message for address additon is: |
1797 | * 0 | |
1798 | * 0 1 2 3 4 5 6 7 | |
1799 | * +-+-+-+-+-+-+-+-+ | |
1800 | * | type | ZEBRA_INTERFACE_ADDRESS_ADD or | |
1801 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_ADDRES_DELETE | |
1802 | * | | | |
1803 | * + + | |
1804 | * | ifindex | | |
1805 | * + + | |
1806 | * | | | |
1807 | * + + | |
1808 | * | | | |
1809 | * +-+-+-+-+-+-+-+-+ | |
1810 | * | ifc_flags | flags for connected address | |
1811 | * +-+-+-+-+-+-+-+-+ | |
1812 | * | addr_family | | |
1813 | * +-+-+-+-+-+-+-+-+ | |
1814 | * | addr... | | |
1815 | * : : | |
1816 | * | | | |
1817 | * +-+-+-+-+-+-+-+-+ | |
1818 | * | addr_len | len of addr. E.g., addr_len = 4 for ipv4 addrs. | |
1819 | * +-+-+-+-+-+-+-+-+ | |
1820 | * | daddr.. | | |
1821 | * : : | |
1822 | * | | | |
1823 | * +-+-+-+-+-+-+-+-+ | |
0a589359 | 1824 | */ |
1825 | ||
d62a17ae | 1826 | static int memconstant(const void *s, int c, size_t n) |
3fb9cd6e | 1827 | { |
d7c0a89a | 1828 | const uint8_t *p = s; |
3fb9cd6e | 1829 | |
d62a17ae | 1830 | while (n-- > 0) |
1831 | if (*p++ != c) | |
1832 | return 0; | |
1833 | return 1; | |
3fb9cd6e | 1834 | } |
1835 | ||
d5a5c8f0 | 1836 | |
d62a17ae | 1837 | struct connected *zebra_interface_address_read(int type, struct stream *s, |
1838 | vrf_id_t vrf_id) | |
718e3744 | 1839 | { |
d62a17ae | 1840 | ifindex_t ifindex; |
1841 | struct interface *ifp; | |
1842 | struct connected *ifc; | |
1843 | struct prefix p, d, *dp; | |
1844 | int plen; | |
d7c0a89a | 1845 | uint8_t ifc_flags; |
d62a17ae | 1846 | |
1847 | memset(&p, 0, sizeof(p)); | |
1848 | memset(&d, 0, sizeof(d)); | |
1849 | ||
1850 | /* Get interface index. */ | |
1851 | ifindex = stream_getl(s); | |
1852 | ||
1853 | /* Lookup index. */ | |
1854 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1855 | if (ifp == NULL) { | |
1856 | zlog_warn("INTERFACE_ADDRESS_%s: Cannot find IF %u in VRF %d", | |
1857 | (type == ZEBRA_INTERFACE_ADDRESS_ADD) ? "ADD" : "DEL", | |
1858 | ifindex, vrf_id); | |
1859 | return NULL; | |
1860 | } | |
1861 | ||
1862 | /* Fetch flag. */ | |
1863 | ifc_flags = stream_getc(s); | |
1864 | ||
1865 | /* Fetch interface address. */ | |
1866 | d.family = p.family = stream_getc(s); | |
1867 | plen = prefix_blen(&d); | |
1868 | ||
1869 | zclient_stream_get_prefix(s, &p); | |
1870 | ||
1871 | /* Fetch destination address. */ | |
1872 | stream_get(&d.u.prefix, s, plen); | |
1873 | ||
1874 | /* N.B. NULL destination pointers are encoded as all zeroes */ | |
1875 | dp = memconstant(&d.u.prefix, 0, plen) ? NULL : &d; | |
1876 | ||
1877 | if (type == ZEBRA_INTERFACE_ADDRESS_ADD) { | |
1878 | ifc = connected_lookup_prefix_exact(ifp, &p); | |
1879 | if (!ifc) { | |
1880 | /* N.B. NULL destination pointers are encoded as all | |
1881 | * zeroes */ | |
1882 | ifc = connected_add_by_prefix(ifp, &p, dp); | |
1883 | } | |
1884 | if (ifc) { | |
1885 | ifc->flags = ifc_flags; | |
1886 | if (ifc->destination) | |
1887 | ifc->destination->prefixlen = | |
1888 | ifc->address->prefixlen; | |
1889 | else if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { | |
1890 | /* carp interfaces on OpenBSD with 0.0.0.0/0 as | |
1891 | * "peer" */ | |
1892 | char buf[PREFIX_STRLEN]; | |
1893 | zlog_warn( | |
1894 | "warning: interface %s address %s " | |
1895 | "with peer flag set, but no peer address!", | |
0313523d FR |
1896 | ifp->name, |
1897 | prefix2str(ifc->address, buf, | |
1898 | sizeof buf)); | |
d62a17ae | 1899 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); |
1900 | } | |
1901 | } | |
1902 | } else { | |
1903 | assert(type == ZEBRA_INTERFACE_ADDRESS_DELETE); | |
1904 | ifc = connected_delete_by_prefix(ifp, &p); | |
1905 | } | |
1906 | ||
1907 | return ifc; | |
718e3744 | 1908 | } |
0a589359 | 1909 | |
a80beece DS |
1910 | /* |
1911 | * format of message for neighbor connected address is: | |
1912 | * 0 | |
1913 | * 0 1 2 3 4 5 6 7 | |
1914 | * +-+-+-+-+-+-+-+-+ | |
1915 | * | type | ZEBRA_INTERFACE_NBR_ADDRESS_ADD or | |
1916 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_NBR_ADDRES_DELETE | |
1917 | * | | | |
1918 | * + + | |
1919 | * | ifindex | | |
1920 | * + + | |
1921 | * | | | |
1922 | * + + | |
1923 | * | | | |
1924 | * +-+-+-+-+-+-+-+-+ | |
1925 | * | addr_family | | |
1926 | * +-+-+-+-+-+-+-+-+ | |
1927 | * | addr... | | |
1928 | * : : | |
1929 | * | | | |
1930 | * +-+-+-+-+-+-+-+-+ | |
1931 | * | addr_len | len of addr. | |
1932 | * +-+-+-+-+-+-+-+-+ | |
1933 | */ | |
1934 | struct nbr_connected * | |
d62a17ae | 1935 | zebra_interface_nbr_address_read(int type, struct stream *s, vrf_id_t vrf_id) |
a80beece | 1936 | { |
d62a17ae | 1937 | unsigned int ifindex; |
1938 | struct interface *ifp; | |
1939 | struct prefix p; | |
1940 | struct nbr_connected *ifc; | |
1941 | ||
1942 | /* Get interface index. */ | |
1943 | ifindex = stream_getl(s); | |
1944 | ||
1945 | /* Lookup index. */ | |
1946 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1947 | if (ifp == NULL) { | |
1948 | zlog_warn("INTERFACE_NBR_%s: Cannot find IF %u in VRF %d", | |
1949 | (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) ? "ADD" | |
1950 | : "DELETE", | |
1951 | ifindex, vrf_id); | |
1952 | return NULL; | |
1953 | } | |
1954 | ||
1955 | p.family = stream_getc(s); | |
1956 | stream_get(&p.u.prefix, s, prefix_blen(&p)); | |
1957 | p.prefixlen = stream_getc(s); | |
1958 | ||
1959 | if (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) { | |
1960 | /* Currently only supporting P2P links, so any new RA source | |
1961 | address is | |
1962 | considered as the replacement of the previously learnt | |
1963 | Link-Local address. */ | |
1964 | if (!(ifc = listnode_head(ifp->nbr_connected))) { | |
1965 | ifc = nbr_connected_new(); | |
1966 | ifc->address = prefix_new(); | |
1967 | ifc->ifp = ifp; | |
1968 | listnode_add(ifp->nbr_connected, ifc); | |
1969 | } | |
1970 | ||
1971 | prefix_copy(ifc->address, &p); | |
1972 | } else { | |
1973 | assert(type == ZEBRA_INTERFACE_NBR_ADDRESS_DELETE); | |
1974 | ||
1975 | ifc = nbr_connected_check(ifp, &p); | |
1976 | if (ifc) | |
1977 | listnode_delete(ifp->nbr_connected, ifc); | |
1978 | } | |
1979 | ||
1980 | return ifc; | |
a80beece | 1981 | } |
6b0655a2 | 1982 | |
d62a17ae | 1983 | struct interface *zebra_interface_vrf_update_read(struct stream *s, |
1984 | vrf_id_t vrf_id, | |
1985 | vrf_id_t *new_vrf_id) | |
c8e264b6 | 1986 | { |
d62a17ae | 1987 | unsigned int ifindex; |
1988 | struct interface *ifp; | |
a9ff90c4 | 1989 | vrf_id_t new_id; |
d62a17ae | 1990 | |
1991 | /* Get interface index. */ | |
1992 | ifindex = stream_getl(s); | |
1993 | ||
1994 | /* Lookup interface. */ | |
1995 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1996 | if (ifp == NULL) { | |
1997 | zlog_warn("INTERFACE_VRF_UPDATE: Cannot find IF %u in VRF %d", | |
1998 | ifindex, vrf_id); | |
1999 | return NULL; | |
2000 | } | |
2001 | ||
2002 | /* Fetch new VRF Id. */ | |
2003 | new_id = stream_getw(s); | |
2004 | ||
2005 | *new_vrf_id = new_id; | |
2006 | return ifp; | |
c8e264b6 | 2007 | } |
5c7ef8dc | 2008 | |
2009 | /* filter unwanted messages until the expected one arrives */ | |
d62a17ae | 2010 | static int zclient_read_sync_response(struct zclient *zclient, |
d7c0a89a | 2011 | uint16_t expected_cmd) |
5c7ef8dc | 2012 | { |
d62a17ae | 2013 | struct stream *s; |
d7c0a89a QY |
2014 | uint16_t size = -1; |
2015 | uint8_t marker; | |
2016 | uint8_t version; | |
d62a17ae | 2017 | vrf_id_t vrf_id; |
d7c0a89a | 2018 | uint16_t cmd; |
d62a17ae | 2019 | fd_set readfds; |
2020 | int ret; | |
2021 | ||
2022 | ret = 0; | |
2023 | cmd = expected_cmd + 1; | |
2024 | while (ret == 0 && cmd != expected_cmd) { | |
2025 | s = zclient->ibuf; | |
2026 | stream_reset(s); | |
2027 | ||
2028 | /* wait until response arrives */ | |
2029 | FD_ZERO(&readfds); | |
2030 | FD_SET(zclient->sock, &readfds); | |
2031 | select(zclient->sock + 1, &readfds, NULL, NULL, NULL); | |
2032 | if (!FD_ISSET(zclient->sock, &readfds)) | |
2033 | continue; | |
2034 | /* read response */ | |
2035 | ret = zclient_read_header(s, zclient->sock, &size, &marker, | |
2036 | &version, &vrf_id, &cmd); | |
2037 | if (zclient_debug) | |
2038 | zlog_debug("%s: Response (%d bytes) received", __func__, | |
2039 | size); | |
2040 | } | |
2041 | if (ret != 0) { | |
2042 | zlog_err("%s: Invalid Sync Message Reply", __func__); | |
2043 | return -1; | |
2044 | } | |
2045 | ||
2046 | return 0; | |
5c7ef8dc | 2047 | } |
fea12efb | 2048 | /** |
2049 | * Connect to label manager in a syncronous way | |
2050 | * | |
2051 | * It first writes the request to zcient output buffer and then | |
2052 | * immediately reads the answer from the input buffer. | |
2053 | * | |
2054 | * @param zclient Zclient used to connect to label manager (zebra) | |
2055 | * @result Result of response | |
2056 | */ | |
d62a17ae | 2057 | int lm_label_manager_connect(struct zclient *zclient) |
fea12efb | 2058 | { |
d62a17ae | 2059 | int ret; |
2060 | struct stream *s; | |
d7c0a89a | 2061 | uint8_t result; |
d62a17ae | 2062 | |
2063 | if (zclient_debug) | |
35cbe02a | 2064 | zlog_debug("Connecting to Label Manager (LM)"); |
d62a17ae | 2065 | |
2066 | if (zclient->sock < 0) | |
2067 | return -1; | |
2068 | ||
2069 | /* send request */ | |
2070 | s = zclient->obuf; | |
2071 | stream_reset(s); | |
2072 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, VRF_DEFAULT); | |
2073 | ||
2074 | /* proto */ | |
2075 | stream_putc(s, zclient->redist_default); | |
2076 | /* instance */ | |
2077 | stream_putw(s, zclient->instance); | |
2078 | ||
2079 | /* Put length at the first point of the stream. */ | |
2080 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2081 | ||
2082 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2083 | if (ret < 0) { | |
35cbe02a | 2084 | zlog_err("Can't write to zclient sock"); |
d62a17ae | 2085 | close(zclient->sock); |
2086 | zclient->sock = -1; | |
2087 | return -1; | |
2088 | } | |
2089 | if (ret == 0) { | |
35cbe02a | 2090 | zlog_err("Zclient sock closed"); |
d62a17ae | 2091 | close(zclient->sock); |
2092 | zclient->sock = -1; | |
2093 | return -1; | |
2094 | } | |
2095 | if (zclient_debug) | |
35cbe02a | 2096 | zlog_debug("LM connect request sent (%d bytes)", ret); |
d62a17ae | 2097 | |
2098 | /* read response */ | |
2099 | if (zclient_read_sync_response(zclient, ZEBRA_LABEL_MANAGER_CONNECT) | |
2100 | != 0) | |
2101 | return -1; | |
2102 | ||
d62a17ae | 2103 | s = zclient->ibuf; |
5dffb0e9 FR |
2104 | |
2105 | /* read instance and proto */ | |
2106 | uint8_t proto = stream_getc(s); | |
2107 | uint16_t instance = stream_getw(s); | |
2108 | ||
2109 | /* sanity */ | |
2110 | if (proto != zclient->redist_default) | |
0313523d FR |
2111 | zlog_err( |
2112 | "Wrong proto (%u) in LM connect response. Should be %u", | |
2113 | proto, zclient->redist_default); | |
5dffb0e9 | 2114 | if (instance != zclient->instance) |
0313523d FR |
2115 | zlog_err( |
2116 | "Wrong instId (%u) in LM connect response. Should be %u", | |
2117 | instance, zclient->instance); | |
5dffb0e9 FR |
2118 | |
2119 | /* result code */ | |
d62a17ae | 2120 | result = stream_getc(s); |
2121 | if (zclient_debug) | |
0313523d | 2122 | zlog_debug("LM connect-response received, result %u", result); |
d62a17ae | 2123 | |
2124 | return (int)result; | |
fea12efb | 2125 | } |
2126 | ||
955bfd98 PZ |
2127 | /* |
2128 | * Asynchronous label chunk request | |
2129 | * | |
2130 | * @param zclient Zclient used to connect to label manager (zebra) | |
2131 | * @param keep Avoid garbage collection | |
2132 | * @param chunk_size Amount of labels requested | |
2133 | * @result 0 on success, -1 otherwise | |
2134 | */ | |
0313523d FR |
2135 | int zclient_send_get_label_chunk(struct zclient *zclient, uint8_t keep, |
2136 | uint32_t chunk_size) | |
955bfd98 PZ |
2137 | { |
2138 | struct stream *s; | |
2139 | ||
2140 | if (zclient_debug) | |
2141 | zlog_debug("Getting Label Chunk"); | |
2142 | ||
2143 | if (zclient->sock < 0) | |
2144 | return -1; | |
2145 | ||
2146 | s = zclient->obuf; | |
2147 | stream_reset(s); | |
2148 | ||
2149 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
5dffb0e9 FR |
2150 | /* proto */ |
2151 | stream_putc(s, zclient->redist_default); | |
2152 | /* instance */ | |
2153 | stream_putw(s, zclient->instance); | |
955bfd98 PZ |
2154 | stream_putc(s, keep); |
2155 | stream_putl(s, chunk_size); | |
2156 | ||
2157 | /* Put length at the first point of the stream. */ | |
2158 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2159 | ||
2160 | return zclient_send_message(zclient); | |
2161 | } | |
2162 | ||
fea12efb | 2163 | /** |
2164 | * Function to request a label chunk in a syncronous way | |
2165 | * | |
2166 | * It first writes the request to zlcient output buffer and then | |
2167 | * immediately reads the answer from the input buffer. | |
2168 | * | |
2169 | * @param zclient Zclient used to connect to label manager (zebra) | |
2170 | * @param keep Avoid garbage collection | |
2171 | * @param chunk_size Amount of labels requested | |
2172 | * @param start To write first assigned chunk label to | |
2173 | * @param end To write last assigned chunk label to | |
2174 | * @result 0 on success, -1 otherwise | |
2175 | */ | |
d7c0a89a | 2176 | int lm_get_label_chunk(struct zclient *zclient, uint8_t keep, |
d62a17ae | 2177 | uint32_t chunk_size, uint32_t *start, uint32_t *end) |
fea12efb | 2178 | { |
d62a17ae | 2179 | int ret; |
2180 | struct stream *s; | |
d7c0a89a | 2181 | uint8_t response_keep; |
d62a17ae | 2182 | |
2183 | if (zclient_debug) | |
2184 | zlog_debug("Getting Label Chunk"); | |
2185 | ||
2186 | if (zclient->sock < 0) | |
2187 | return -1; | |
2188 | ||
2189 | /* send request */ | |
2190 | s = zclient->obuf; | |
2191 | stream_reset(s); | |
2192 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
5dffb0e9 FR |
2193 | /* proto */ |
2194 | stream_putc(s, zclient->redist_default); | |
2195 | /* instance */ | |
2196 | stream_putw(s, zclient->instance); | |
d62a17ae | 2197 | /* keep */ |
2198 | stream_putc(s, keep); | |
2199 | /* chunk size */ | |
2200 | stream_putl(s, chunk_size); | |
2201 | /* Put length at the first point of the stream. */ | |
2202 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2203 | ||
2204 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2205 | if (ret < 0) { | |
35cbe02a | 2206 | zlog_err("Can't write to zclient sock"); |
d62a17ae | 2207 | close(zclient->sock); |
2208 | zclient->sock = -1; | |
2209 | return -1; | |
2210 | } | |
2211 | if (ret == 0) { | |
35cbe02a | 2212 | zlog_err("Zclient sock closed"); |
d62a17ae | 2213 | close(zclient->sock); |
2214 | zclient->sock = -1; | |
2215 | return -1; | |
2216 | } | |
2217 | if (zclient_debug) | |
35cbe02a | 2218 | zlog_debug("Label chunk request (%d bytes) sent", ret); |
d62a17ae | 2219 | |
2220 | /* read response */ | |
2221 | if (zclient_read_sync_response(zclient, ZEBRA_GET_LABEL_CHUNK) != 0) | |
2222 | return -1; | |
2223 | ||
5dffb0e9 | 2224 | /* parse response */ |
d62a17ae | 2225 | s = zclient->ibuf; |
5dffb0e9 FR |
2226 | |
2227 | /* read proto and instance */ | |
2228 | uint8_t proto = stream_getc(s); | |
2229 | uint16_t instance = stream_getw(s); | |
2230 | ||
2231 | /* sanities */ | |
2232 | if (proto != zclient->redist_default) | |
2233 | zlog_err("Wrong proto (%u) in get chunk response. Should be %u", | |
0313523d | 2234 | proto, zclient->redist_default); |
5dffb0e9 FR |
2235 | if (instance != zclient->instance) |
2236 | zlog_err("Wrong instId (%u) in get chunk response Should be %u", | |
0313523d | 2237 | instance, zclient->instance); |
5dffb0e9 | 2238 | |
d62a17ae | 2239 | /* keep */ |
2240 | response_keep = stream_getc(s); | |
2241 | /* start and end labels */ | |
2242 | *start = stream_getl(s); | |
2243 | *end = stream_getl(s); | |
2244 | ||
2245 | /* not owning this response */ | |
2246 | if (keep != response_keep) { | |
2247 | zlog_err( | |
35cbe02a FR |
2248 | "Invalid Label chunk: %u - %u, keeps mismatch %u != %u", |
2249 | *start, *end, keep, response_keep); | |
d62a17ae | 2250 | } |
2251 | /* sanity */ | |
70e98a7f DS |
2252 | if (*start > *end || *start < MPLS_LABEL_UNRESERVED_MIN |
2253 | || *end > MPLS_LABEL_UNRESERVED_MAX) { | |
35cbe02a | 2254 | zlog_err("Invalid Label chunk: %u - %u", *start, *end); |
d62a17ae | 2255 | return -1; |
2256 | } | |
2257 | ||
2258 | if (zclient_debug) | |
35cbe02a | 2259 | zlog_debug("Label Chunk assign: %u - %u (%u)", *start, *end, |
d62a17ae | 2260 | response_keep); |
2261 | ||
2262 | return 0; | |
fea12efb | 2263 | } |
2264 | ||
2265 | /** | |
2266 | * Function to release a label chunk | |
2267 | * | |
2268 | * @param zclient Zclient used to connect to label manager (zebra) | |
2269 | * @param start First label of chunk | |
2270 | * @param end Last label of chunk | |
2271 | * @result 0 on success, -1 otherwise | |
2272 | */ | |
d62a17ae | 2273 | int lm_release_label_chunk(struct zclient *zclient, uint32_t start, |
2274 | uint32_t end) | |
fea12efb | 2275 | { |
d62a17ae | 2276 | int ret; |
2277 | struct stream *s; | |
2278 | ||
2279 | if (zclient_debug) | |
35cbe02a | 2280 | zlog_debug("Releasing Label Chunk %u - %u", start, end); |
d62a17ae | 2281 | |
2282 | if (zclient->sock < 0) | |
2283 | return -1; | |
2284 | ||
2285 | /* send request */ | |
2286 | s = zclient->obuf; | |
2287 | stream_reset(s); | |
2288 | zclient_create_header(s, ZEBRA_RELEASE_LABEL_CHUNK, VRF_DEFAULT); | |
2289 | ||
5dffb0e9 FR |
2290 | /* proto */ |
2291 | stream_putc(s, zclient->redist_default); | |
2292 | /* instance */ | |
2293 | stream_putw(s, zclient->instance); | |
d62a17ae | 2294 | /* start */ |
2295 | stream_putl(s, start); | |
2296 | /* end */ | |
2297 | stream_putl(s, end); | |
2298 | ||
2299 | /* Put length at the first point of the stream. */ | |
2300 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2301 | ||
2302 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2303 | if (ret < 0) { | |
35cbe02a | 2304 | zlog_err("Can't write to zclient sock"); |
d62a17ae | 2305 | close(zclient->sock); |
2306 | zclient->sock = -1; | |
2307 | return -1; | |
2308 | } | |
2309 | if (ret == 0) { | |
35cbe02a | 2310 | zlog_err("Zclient sock connection closed"); |
d62a17ae | 2311 | close(zclient->sock); |
2312 | zclient->sock = -1; | |
2313 | return -1; | |
2314 | } | |
2315 | ||
2316 | return 0; | |
fea12efb | 2317 | } |
c8e264b6 | 2318 | |
75fb51c1 PG |
2319 | /** |
2320 | * Connect to table manager in a syncronous way | |
2321 | * | |
2322 | * It first writes the request to zcient output buffer and then | |
2323 | * immediately reads the answer from the input buffer. | |
2324 | * | |
2325 | * @param zclient Zclient used to connect to table manager (zebra) | |
2326 | * @result Result of response | |
2327 | */ | |
2328 | int tm_table_manager_connect(struct zclient *zclient) | |
2329 | { | |
2330 | int ret; | |
2331 | struct stream *s; | |
2332 | uint8_t result; | |
2333 | ||
2334 | if (zclient_debug) | |
2335 | zlog_debug("Connecting to Table Manager"); | |
2336 | ||
2337 | if (zclient->sock < 0) | |
2338 | return -1; | |
2339 | ||
2340 | /* send request */ | |
2341 | s = zclient->obuf; | |
2342 | stream_reset(s); | |
2343 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, VRF_DEFAULT); | |
2344 | ||
2345 | /* proto */ | |
2346 | stream_putc(s, zclient->redist_default); | |
2347 | /* instance */ | |
2348 | stream_putw(s, zclient->instance); | |
2349 | ||
2350 | /* Put length at the first point of the stream. */ | |
2351 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2352 | ||
2353 | ret = zclient_send_message(zclient); | |
2354 | if (ret < 0) | |
2355 | return -1; | |
2356 | ||
2357 | if (zclient_debug) | |
0313523d | 2358 | zlog_debug("%s: Table manager connect request sent", __func__); |
75fb51c1 PG |
2359 | |
2360 | /* read response */ | |
2361 | if (zclient_read_sync_response(zclient, ZEBRA_TABLE_MANAGER_CONNECT) | |
2362 | != 0) | |
2363 | return -1; | |
2364 | ||
2365 | /* result */ | |
2366 | s = zclient->ibuf; | |
2367 | STREAM_GETC(s, result); | |
2368 | if (zclient_debug) | |
2369 | zlog_debug( | |
2370 | "%s: Table Manager connect response received, result %u", | |
2371 | __func__, result); | |
2372 | ||
2373 | return (int)result; | |
2374 | stream_failure: | |
2375 | return 0; | |
2376 | } | |
2377 | ||
2378 | /** | |
2379 | * Function to request a table chunk in a syncronous way | |
2380 | * | |
2381 | * It first writes the request to zclient output buffer and then | |
2382 | * immediately reads the answer from the input buffer. | |
2383 | * | |
2384 | * @param zclient Zclient used to connect to table manager (zebra) | |
2385 | * @param chunk_size Amount of table requested | |
2386 | * @param start to write first assigned chunk table RT ID to | |
2387 | * @param end To write last assigned chunk table RT ID to | |
2388 | * @result 0 on success, -1 otherwise | |
2389 | */ | |
2390 | int tm_get_table_chunk(struct zclient *zclient, uint32_t chunk_size, | |
2391 | uint32_t *start, uint32_t *end) | |
2392 | { | |
2393 | int ret; | |
2394 | struct stream *s; | |
2395 | ||
2396 | if (zclient_debug) | |
2397 | zlog_debug("Getting Table Chunk"); | |
2398 | ||
2399 | if (zclient->sock < 0) | |
2400 | return -1; | |
2401 | ||
2402 | /* send request */ | |
2403 | s = zclient->obuf; | |
2404 | stream_reset(s); | |
2405 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, VRF_DEFAULT); | |
2406 | /* chunk size */ | |
2407 | stream_putl(s, chunk_size); | |
2408 | /* Put length at the first point of the stream. */ | |
2409 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2410 | ||
2411 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2412 | if (ret < 0) { | |
2413 | zlog_err("%s: can't write to zclient->sock", __func__); | |
2414 | close(zclient->sock); | |
2415 | zclient->sock = -1; | |
2416 | return -1; | |
2417 | } | |
2418 | if (ret == 0) { | |
2419 | zlog_err("%s: zclient->sock connection closed", __func__); | |
2420 | close(zclient->sock); | |
2421 | zclient->sock = -1; | |
2422 | return -1; | |
2423 | } | |
2424 | if (zclient_debug) | |
2425 | zlog_debug("%s: Table chunk request (%d bytes) sent", __func__, | |
2426 | ret); | |
2427 | ||
2428 | /* read response */ | |
2429 | if (zclient_read_sync_response(zclient, ZEBRA_GET_TABLE_CHUNK) != 0) | |
2430 | return -1; | |
2431 | ||
2432 | s = zclient->ibuf; | |
2433 | /* start and end table IDs */ | |
2434 | STREAM_GETL(s, *start); | |
2435 | STREAM_GETL(s, *end); | |
2436 | ||
2437 | if (zclient_debug) | |
2438 | zlog_debug("Table Chunk assign: %u - %u ", *start, *end); | |
2439 | ||
2440 | stream_failure: | |
2441 | return 0; | |
2442 | } | |
2443 | ||
2444 | /** | |
2445 | * Function to release a table chunk | |
2446 | * | |
2447 | * @param zclient Zclient used to connect to table manager (zebra) | |
2448 | * @param start First label of table | |
2449 | * @param end Last label of chunk | |
2450 | * @result 0 on success, -1 otherwise | |
2451 | */ | |
2452 | int tm_release_table_chunk(struct zclient *zclient, uint32_t start, | |
2453 | uint32_t end) | |
2454 | { | |
2455 | struct stream *s; | |
2456 | ||
2457 | if (zclient_debug) | |
2458 | zlog_debug("Releasing Table Chunk"); | |
2459 | ||
2460 | if (zclient->sock < 0) | |
2461 | return -1; | |
2462 | ||
2463 | /* send request */ | |
2464 | s = zclient->obuf; | |
2465 | stream_reset(s); | |
2466 | zclient_create_header(s, ZEBRA_RELEASE_TABLE_CHUNK, VRF_DEFAULT); | |
2467 | ||
2468 | /* start */ | |
2469 | stream_putl(s, start); | |
2470 | /* end */ | |
2471 | stream_putl(s, end); | |
2472 | ||
2473 | /* Put length at the first point of the stream. */ | |
2474 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2475 | ||
2476 | return zclient_send_message(zclient); | |
2477 | } | |
2478 | ||
2479 | ||
6833ae01 | 2480 | int zebra_send_pw(struct zclient *zclient, int command, struct zapi_pw *pw) |
2481 | { | |
2482 | struct stream *s; | |
2483 | ||
2484 | /* Reset stream. */ | |
2485 | s = zclient->obuf; | |
2486 | stream_reset(s); | |
2487 | ||
2488 | zclient_create_header(s, command, VRF_DEFAULT); | |
2489 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
2490 | stream_putl(s, pw->ifindex); | |
2491 | ||
2492 | /* Put type */ | |
2493 | stream_putl(s, pw->type); | |
2494 | ||
2495 | /* Put nexthop */ | |
2496 | stream_putl(s, pw->af); | |
2497 | switch (pw->af) { | |
2498 | case AF_INET: | |
2499 | stream_put_in_addr(s, &pw->nexthop.ipv4); | |
2500 | break; | |
2501 | case AF_INET6: | |
d7c0a89a | 2502 | stream_write(s, (uint8_t *)&pw->nexthop.ipv6, 16); |
6833ae01 | 2503 | break; |
2504 | default: | |
2505 | zlog_err("%s: unknown af", __func__); | |
2506 | return -1; | |
2507 | } | |
2508 | ||
2509 | /* Put labels */ | |
2510 | stream_putl(s, pw->local_label); | |
2511 | stream_putl(s, pw->remote_label); | |
2512 | ||
2513 | /* Put flags */ | |
2514 | stream_putc(s, pw->flags); | |
2515 | ||
2516 | /* Protocol specific fields */ | |
2517 | stream_write(s, &pw->data, sizeof(union pw_protocol_fields)); | |
2518 | ||
2519 | /* Put length at the first point of the stream. */ | |
2520 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2521 | ||
2522 | return zclient_send_message(zclient); | |
2523 | } | |
2524 | ||
2525 | /* | |
2526 | * Receive PW status update from Zebra and send it to LDE process. | |
2527 | */ | |
2528 | void zebra_read_pw_status_update(int command, struct zclient *zclient, | |
2529 | zebra_size_t length, vrf_id_t vrf_id, | |
2530 | struct zapi_pw_status *pw) | |
2531 | { | |
2532 | struct stream *s; | |
2533 | ||
2534 | memset(pw, 0, sizeof(struct zapi_pw_status)); | |
2535 | s = zclient->ibuf; | |
2536 | ||
2537 | /* Get data. */ | |
2538 | stream_get(pw->ifname, s, IF_NAMESIZE); | |
2539 | pw->ifindex = stream_getl(s); | |
2540 | pw->status = stream_getl(s); | |
2541 | } | |
2542 | ||
09924cff DS |
2543 | static void zclient_capability_decode(int command, struct zclient *zclient, |
2544 | zebra_size_t length, vrf_id_t vrf_id) | |
2545 | { | |
2546 | struct zclient_capabilities cap; | |
2547 | struct stream *s = zclient->ibuf; | |
2548 | uint8_t mpls_enabled; | |
2549 | ||
2550 | memset(&cap, 0, sizeof(cap)); | |
2551 | STREAM_GETC(s, mpls_enabled); | |
2552 | cap.mpls_enabled = !!mpls_enabled; | |
2553 | STREAM_GETL(s, cap.ecmp); | |
2554 | ||
2555 | if (zclient->zebra_capabilities) | |
2556 | (*zclient->zebra_capabilities)(&cap); | |
2557 | ||
2558 | stream_failure: | |
2559 | return; | |
2560 | } | |
2561 | ||
718e3744 | 2562 | /* Zebra client message read function. */ |
d62a17ae | 2563 | static int zclient_read(struct thread *thread) |
718e3744 | 2564 | { |
d62a17ae | 2565 | size_t already; |
2566 | uint16_t length, command; | |
2567 | uint8_t marker, version; | |
2568 | vrf_id_t vrf_id; | |
2569 | struct zclient *zclient; | |
2570 | ||
2571 | /* Get socket to zebra. */ | |
2572 | zclient = THREAD_ARG(thread); | |
2573 | zclient->t_read = NULL; | |
2574 | ||
2575 | /* Read zebra header (if we don't have it already). */ | |
2576 | if ((already = stream_get_endp(zclient->ibuf)) < ZEBRA_HEADER_SIZE) { | |
2577 | ssize_t nbyte; | |
2578 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2579 | ZEBRA_HEADER_SIZE - already)) | |
2580 | == 0) | |
2581 | || (nbyte == -1)) { | |
2582 | if (zclient_debug) | |
2583 | zlog_debug( | |
2584 | "zclient connection closed socket [%d].", | |
2585 | zclient->sock); | |
2586 | return zclient_failed(zclient); | |
2587 | } | |
2588 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
2589 | /* Try again later. */ | |
2590 | zclient_event(ZCLIENT_READ, zclient); | |
2591 | return 0; | |
2592 | } | |
2593 | already = ZEBRA_HEADER_SIZE; | |
634f9ea2 | 2594 | } |
d62a17ae | 2595 | |
2596 | /* Reset to read from the beginning of the incoming packet. */ | |
2597 | stream_set_getp(zclient->ibuf, 0); | |
2598 | ||
2599 | /* Fetch header values. */ | |
2600 | length = stream_getw(zclient->ibuf); | |
2601 | marker = stream_getc(zclient->ibuf); | |
2602 | version = stream_getc(zclient->ibuf); | |
a9ff90c4 | 2603 | vrf_id = stream_getl(zclient->ibuf); |
d62a17ae | 2604 | command = stream_getw(zclient->ibuf); |
2605 | ||
2606 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
2607 | zlog_err( | |
2608 | "%s: socket %d version mismatch, marker %d, version %d", | |
2609 | __func__, zclient->sock, marker, version); | |
2610 | return zclient_failed(zclient); | |
634f9ea2 | 2611 | } |
d62a17ae | 2612 | |
2613 | if (length < ZEBRA_HEADER_SIZE) { | |
2614 | zlog_err("%s: socket %d message length %u is less than %d ", | |
2615 | __func__, zclient->sock, length, ZEBRA_HEADER_SIZE); | |
2616 | return zclient_failed(zclient); | |
634f9ea2 | 2617 | } |
d62a17ae | 2618 | |
2619 | /* Length check. */ | |
2620 | if (length > STREAM_SIZE(zclient->ibuf)) { | |
2621 | struct stream *ns; | |
2622 | zlog_warn( | |
2623 | "%s: message size %u exceeds buffer size %lu, expanding...", | |
d7c0a89a QY |
2624 | __func__, length, |
2625 | (unsigned long)STREAM_SIZE(zclient->ibuf)); | |
d62a17ae | 2626 | ns = stream_new(length); |
2627 | stream_copy(ns, zclient->ibuf); | |
2628 | stream_free(zclient->ibuf); | |
2629 | zclient->ibuf = ns; | |
2630 | } | |
2631 | ||
2632 | /* Read rest of zebra packet. */ | |
2633 | if (already < length) { | |
2634 | ssize_t nbyte; | |
2635 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2636 | length - already)) | |
2637 | == 0) | |
2638 | || (nbyte == -1)) { | |
2639 | if (zclient_debug) | |
2640 | zlog_debug( | |
2641 | "zclient connection closed socket [%d].", | |
2642 | zclient->sock); | |
2643 | return zclient_failed(zclient); | |
2644 | } | |
2645 | if (nbyte != (ssize_t)(length - already)) { | |
2646 | /* Try again later. */ | |
2647 | zclient_event(ZCLIENT_READ, zclient); | |
2648 | return 0; | |
2649 | } | |
2650 | } | |
2651 | ||
2652 | length -= ZEBRA_HEADER_SIZE; | |
2653 | ||
2654 | if (zclient_debug) | |
2655 | zlog_debug("zclient 0x%p command 0x%x VRF %u\n", | |
2656 | (void *)zclient, command, vrf_id); | |
2657 | ||
2658 | switch (command) { | |
09924cff DS |
2659 | case ZEBRA_CAPABILITIES: |
2660 | zclient_capability_decode(command, zclient, length, vrf_id); | |
2661 | break; | |
d62a17ae | 2662 | case ZEBRA_ROUTER_ID_UPDATE: |
2663 | if (zclient->router_id_update) | |
2664 | (*zclient->router_id_update)(command, zclient, length, | |
2665 | vrf_id); | |
2666 | break; | |
2667 | case ZEBRA_VRF_ADD: | |
2668 | zclient_vrf_add(zclient, vrf_id); | |
2669 | break; | |
2670 | case ZEBRA_VRF_DELETE: | |
2671 | zclient_vrf_delete(zclient, vrf_id); | |
2672 | break; | |
2673 | case ZEBRA_INTERFACE_ADD: | |
2674 | if (zclient->interface_add) | |
2675 | (*zclient->interface_add)(command, zclient, length, | |
2676 | vrf_id); | |
2677 | break; | |
2678 | case ZEBRA_INTERFACE_DELETE: | |
2679 | if (zclient->interface_delete) | |
2680 | (*zclient->interface_delete)(command, zclient, length, | |
2681 | vrf_id); | |
2682 | break; | |
2683 | case ZEBRA_INTERFACE_ADDRESS_ADD: | |
2684 | if (zclient->interface_address_add) | |
2685 | (*zclient->interface_address_add)(command, zclient, | |
2686 | length, vrf_id); | |
2687 | break; | |
2688 | case ZEBRA_INTERFACE_ADDRESS_DELETE: | |
2689 | if (zclient->interface_address_delete) | |
2690 | (*zclient->interface_address_delete)(command, zclient, | |
2691 | length, vrf_id); | |
2692 | break; | |
2693 | case ZEBRA_INTERFACE_BFD_DEST_UPDATE: | |
2694 | if (zclient->interface_bfd_dest_update) | |
2695 | (*zclient->interface_bfd_dest_update)(command, zclient, | |
2696 | length, vrf_id); | |
2697 | break; | |
2698 | case ZEBRA_INTERFACE_NBR_ADDRESS_ADD: | |
2699 | if (zclient->interface_nbr_address_add) | |
2700 | (*zclient->interface_nbr_address_add)(command, zclient, | |
2701 | length, vrf_id); | |
2702 | break; | |
2703 | case ZEBRA_INTERFACE_NBR_ADDRESS_DELETE: | |
2704 | if (zclient->interface_nbr_address_delete) | |
2705 | (*zclient->interface_nbr_address_delete)( | |
2706 | command, zclient, length, vrf_id); | |
2707 | break; | |
2708 | case ZEBRA_INTERFACE_UP: | |
2709 | if (zclient->interface_up) | |
2710 | (*zclient->interface_up)(command, zclient, length, | |
2711 | vrf_id); | |
2712 | break; | |
2713 | case ZEBRA_INTERFACE_DOWN: | |
2714 | if (zclient->interface_down) | |
2715 | (*zclient->interface_down)(command, zclient, length, | |
2716 | vrf_id); | |
2717 | break; | |
2718 | case ZEBRA_INTERFACE_VRF_UPDATE: | |
2719 | if (zclient->interface_vrf_update) | |
2720 | (*zclient->interface_vrf_update)(command, zclient, | |
2721 | length, vrf_id); | |
2722 | break; | |
2723 | case ZEBRA_NEXTHOP_UPDATE: | |
2724 | if (zclient_debug) | |
2725 | zlog_debug("zclient rcvd nexthop update\n"); | |
2726 | if (zclient->nexthop_update) | |
2727 | (*zclient->nexthop_update)(command, zclient, length, | |
2728 | vrf_id); | |
2729 | break; | |
2730 | case ZEBRA_IMPORT_CHECK_UPDATE: | |
2731 | if (zclient_debug) | |
2732 | zlog_debug("zclient rcvd import check update\n"); | |
2733 | if (zclient->import_check_update) | |
2734 | (*zclient->import_check_update)(command, zclient, | |
2735 | length, vrf_id); | |
2736 | break; | |
2737 | case ZEBRA_BFD_DEST_REPLAY: | |
2738 | if (zclient->bfd_dest_replay) | |
2739 | (*zclient->bfd_dest_replay)(command, zclient, length, | |
2740 | vrf_id); | |
2741 | break; | |
74489921 RW |
2742 | case ZEBRA_REDISTRIBUTE_ROUTE_ADD: |
2743 | if (zclient->redistribute_route_add) | |
2744 | (*zclient->redistribute_route_add)(command, zclient, | |
2745 | length, vrf_id); | |
d62a17ae | 2746 | break; |
74489921 RW |
2747 | case ZEBRA_REDISTRIBUTE_ROUTE_DEL: |
2748 | if (zclient->redistribute_route_del) | |
2749 | (*zclient->redistribute_route_del)(command, zclient, | |
2750 | length, vrf_id); | |
d62a17ae | 2751 | break; |
2752 | case ZEBRA_INTERFACE_LINK_PARAMS: | |
2753 | if (zclient->interface_link_params) | |
2754 | (*zclient->interface_link_params)(command, zclient, | |
2755 | length); | |
2756 | break; | |
2757 | case ZEBRA_FEC_UPDATE: | |
2758 | if (zclient_debug) | |
2759 | zlog_debug("zclient rcvd fec update\n"); | |
2760 | if (zclient->fec_update) | |
2761 | (*zclient->fec_update)(command, zclient, length); | |
2762 | break; | |
50f74cf1 | 2763 | case ZEBRA_LOCAL_ES_ADD: |
2764 | if (zclient->local_es_add) | |
2765 | (*zclient->local_es_add)(command, zclient, length, | |
2766 | vrf_id); | |
2767 | break; | |
2768 | case ZEBRA_LOCAL_ES_DEL: | |
2769 | if (zclient->local_es_del) | |
2770 | (*zclient->local_es_del)(command, zclient, length, | |
2771 | vrf_id); | |
2772 | break; | |
d62a17ae | 2773 | case ZEBRA_VNI_ADD: |
2774 | if (zclient->local_vni_add) | |
2775 | (*zclient->local_vni_add)(command, zclient, length, | |
2776 | vrf_id); | |
2777 | break; | |
2778 | case ZEBRA_VNI_DEL: | |
2779 | if (zclient->local_vni_del) | |
2780 | (*zclient->local_vni_del)(command, zclient, length, | |
2781 | vrf_id); | |
2782 | break; | |
b7cfce93 MK |
2783 | case ZEBRA_L3VNI_ADD: |
2784 | if (zclient->local_l3vni_add) | |
2785 | (*zclient->local_l3vni_add)(command, zclient, length, | |
2786 | vrf_id); | |
2787 | break; | |
2788 | case ZEBRA_L3VNI_DEL: | |
2789 | if (zclient->local_l3vni_del) | |
2790 | (*zclient->local_l3vni_del)(command, zclient, length, | |
2791 | vrf_id); | |
2792 | break; | |
d62a17ae | 2793 | case ZEBRA_MACIP_ADD: |
2794 | if (zclient->local_macip_add) | |
2795 | (*zclient->local_macip_add)(command, zclient, length, | |
2796 | vrf_id); | |
2797 | break; | |
2798 | case ZEBRA_MACIP_DEL: | |
2799 | if (zclient->local_macip_del) | |
2800 | (*zclient->local_macip_del)(command, zclient, length, | |
2801 | vrf_id); | |
2802 | break; | |
31310b25 MK |
2803 | case ZEBRA_IP_PREFIX_ROUTE_ADD: |
2804 | if (zclient->local_ip_prefix_add) | |
2805 | (*zclient->local_ip_prefix_add)(command, zclient, | |
2806 | length, vrf_id); | |
2807 | break; | |
2808 | case ZEBRA_IP_PREFIX_ROUTE_DEL: | |
2809 | if (zclient->local_ip_prefix_del) | |
2810 | (*zclient->local_ip_prefix_del)(command, zclient, | |
2811 | length, vrf_id); | |
2812 | break; | |
6833ae01 | 2813 | case ZEBRA_PW_STATUS_UPDATE: |
2814 | if (zclient->pw_status_update) | |
2815 | (*zclient->pw_status_update)(command, zclient, length, | |
2816 | vrf_id); | |
2817 | break; | |
7ea7b86e | 2818 | case ZEBRA_ROUTE_NOTIFY_OWNER: |
28b11f81 DS |
2819 | if (zclient->route_notify_owner) |
2820 | (*zclient->route_notify_owner)(command, zclient, length, | |
2821 | vrf_id); | |
7ea7b86e | 2822 | break; |
b6c5d343 DS |
2823 | case ZEBRA_RULE_NOTIFY_OWNER: |
2824 | if (zclient->rule_notify_owner) | |
2825 | (*zclient->rule_notify_owner)(command, zclient, length, | |
2826 | vrf_id); | |
955bfd98 PZ |
2827 | break; |
2828 | case ZEBRA_GET_LABEL_CHUNK: | |
2829 | if (zclient->label_chunk) | |
2830 | (*zclient->label_chunk)(command, zclient, length, | |
0313523d | 2831 | vrf_id); |
955bfd98 | 2832 | break; |
c16a0a62 PG |
2833 | case ZEBRA_IPSET_NOTIFY_OWNER: |
2834 | if (zclient->ipset_notify_owner) | |
2835 | (*zclient->ipset_notify_owner)(command, zclient, length, | |
2836 | vrf_id); | |
2837 | break; | |
2838 | case ZEBRA_IPSET_ENTRY_NOTIFY_OWNER: | |
2839 | if (zclient->ipset_entry_notify_owner) | |
2840 | (*zclient->ipset_entry_notify_owner)(command, | |
2841 | zclient, length, | |
2842 | vrf_id); | |
2843 | break; | |
2844 | case ZEBRA_IPTABLE_NOTIFY_OWNER: | |
2845 | if (zclient->iptable_notify_owner) | |
2846 | (*zclient->iptable_notify_owner)(command, | |
2847 | zclient, length, | |
2848 | vrf_id); | |
d62a17ae | 2849 | default: |
2850 | break; | |
634f9ea2 | 2851 | } |
d62a17ae | 2852 | |
2853 | if (zclient->sock < 0) | |
2854 | /* Connection was closed during packet processing. */ | |
2855 | return -1; | |
2856 | ||
2857 | /* Register read thread. */ | |
2858 | stream_reset(zclient->ibuf); | |
2859 | zclient_event(ZCLIENT_READ, zclient); | |
2860 | ||
2861 | return 0; | |
718e3744 | 2862 | } |
2863 | ||
d62a17ae | 2864 | void zclient_redistribute(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 2865 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 2866 | { |
718e3744 | 2867 | |
d62a17ae | 2868 | if (instance) { |
2869 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
2870 | if (redist_check_instance( | |
2871 | &zclient->mi_redist[afi][type], instance)) | |
2872 | return; | |
2873 | redist_add_instance(&zclient->mi_redist[afi][type], | |
2874 | instance); | |
2875 | } else { | |
2876 | if (!redist_check_instance( | |
2877 | &zclient->mi_redist[afi][type], instance)) | |
2878 | return; | |
2879 | redist_del_instance(&zclient->mi_redist[afi][type], | |
2880 | instance); | |
2881 | } | |
2882 | ||
2883 | } else { | |
2884 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
2885 | if (vrf_bitmap_check(zclient->redist[afi][type], | |
2886 | vrf_id)) | |
2887 | return; | |
2888 | vrf_bitmap_set(zclient->redist[afi][type], vrf_id); | |
2889 | } else { | |
2890 | if (!vrf_bitmap_check(zclient->redist[afi][type], | |
2891 | vrf_id)) | |
2892 | return; | |
2893 | vrf_bitmap_unset(zclient->redist[afi][type], vrf_id); | |
2894 | } | |
2895 | } | |
2896 | ||
2897 | if (zclient->sock > 0) | |
2898 | zebra_redistribute_send(command, zclient, afi, type, instance, | |
2899 | vrf_id); | |
718e3744 | 2900 | } |
2901 | ||
718e3744 | 2902 | |
d62a17ae | 2903 | void zclient_redistribute_default(int command, struct zclient *zclient, |
2904 | vrf_id_t vrf_id) | |
718e3744 | 2905 | { |
718e3744 | 2906 | |
d62a17ae | 2907 | if (command == ZEBRA_REDISTRIBUTE_DEFAULT_ADD) { |
2908 | if (vrf_bitmap_check(zclient->default_information, vrf_id)) | |
2909 | return; | |
2910 | vrf_bitmap_set(zclient->default_information, vrf_id); | |
2911 | } else { | |
2912 | if (!vrf_bitmap_check(zclient->default_information, vrf_id)) | |
2913 | return; | |
2914 | vrf_bitmap_unset(zclient->default_information, vrf_id); | |
2915 | } | |
2916 | ||
2917 | if (zclient->sock > 0) | |
2918 | zebra_message_send(zclient, command, vrf_id); | |
718e3744 | 2919 | } |
2920 | ||
d62a17ae | 2921 | static void zclient_event(enum event event, struct zclient *zclient) |
718e3744 | 2922 | { |
d62a17ae | 2923 | switch (event) { |
2924 | case ZCLIENT_SCHEDULE: | |
2925 | thread_add_event(zclient->master, zclient_connect, zclient, 0, | |
2926 | &zclient->t_connect); | |
2927 | break; | |
2928 | case ZCLIENT_CONNECT: | |
2929 | if (zclient_debug) | |
2930 | zlog_debug( | |
2931 | "zclient connect failures: %d schedule interval is now %d", | |
2932 | zclient->fail, zclient->fail < 3 ? 10 : 60); | |
2933 | thread_add_timer(zclient->master, zclient_connect, zclient, | |
2934 | zclient->fail < 3 ? 10 : 60, | |
2935 | &zclient->t_connect); | |
2936 | break; | |
2937 | case ZCLIENT_READ: | |
2938 | zclient->t_read = NULL; | |
2939 | thread_add_read(zclient->master, zclient_read, zclient, | |
2940 | zclient->sock, &zclient->t_read); | |
2941 | break; | |
2942 | } | |
718e3744 | 2943 | } |
b5114685 | 2944 | |
e0ae31b8 DS |
2945 | void zclient_interface_set_master(struct zclient *client, |
2946 | struct interface *master, | |
2947 | struct interface *slave) | |
2948 | { | |
2949 | struct stream *s; | |
2950 | ||
2951 | s = client->obuf; | |
2952 | stream_reset(s); | |
2953 | ||
2954 | zclient_create_header(s, ZEBRA_INTERFACE_SET_MASTER, master->vrf_id); | |
2955 | ||
a9ff90c4 | 2956 | stream_putl(s, master->vrf_id); |
e0ae31b8 | 2957 | stream_putl(s, master->ifindex); |
a9ff90c4 | 2958 | stream_putl(s, slave->vrf_id); |
e0ae31b8 DS |
2959 | stream_putl(s, slave->ifindex); |
2960 | ||
2961 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2962 | zclient_send_message(client); | |
2963 | } |