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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" |
1ca3850c | 41 | #include "lib_errors.h" |
6b0655a2 | 42 | |
4a1ab8e4 | 43 | DEFINE_MTYPE_STATIC(LIB, ZCLIENT, "Zclient") |
14878121 | 44 | DEFINE_MTYPE_STATIC(LIB, REDIST_INST, "Redistribution instance IDs") |
4a1ab8e4 | 45 | |
718e3744 | 46 | /* Zebra client events. */ |
d62a17ae | 47 | enum event { ZCLIENT_SCHEDULE, ZCLIENT_READ, ZCLIENT_CONNECT }; |
718e3744 | 48 | |
49 | /* Prototype for event manager. */ | |
d62a17ae | 50 | static void zclient_event(enum event, struct zclient *); |
718e3744 | 51 | |
689f5a8c DL |
52 | struct sockaddr_storage zclient_addr; |
53 | socklen_t zclient_addr_len; | |
b5114685 | 54 | |
718e3744 | 55 | /* This file local debug flag. */ |
56 | int zclient_debug = 0; | |
6b0655a2 | 57 | |
996c9314 | 58 | struct zclient_options zclient_options_default = {.receive_notify = false}; |
e1a1880d | 59 | |
718e3744 | 60 | /* Allocate zclient structure. */ |
e1a1880d DS |
61 | struct zclient *zclient_new_notify(struct thread_master *master, |
62 | struct zclient_options *opt) | |
718e3744 | 63 | { |
d62a17ae | 64 | struct zclient *zclient; |
65 | zclient = XCALLOC(MTYPE_ZCLIENT, sizeof(struct zclient)); | |
718e3744 | 66 | |
d62a17ae | 67 | zclient->ibuf = stream_new(ZEBRA_MAX_PACKET_SIZ); |
68 | zclient->obuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
69 | zclient->wb = buffer_new(0); | |
70 | zclient->master = master; | |
718e3744 | 71 | |
e1a1880d DS |
72 | zclient->receive_notify = opt->receive_notify; |
73 | ||
d62a17ae | 74 | return zclient; |
718e3744 | 75 | } |
76 | ||
228da428 | 77 | /* This function is only called when exiting, because |
634f9ea2 | 78 | many parts of the code do not check for I/O errors, so they could |
79 | reference an invalid pointer if the structure was ever freed. | |
634f9ea2 | 80 | |
228da428 | 81 | Free zclient structure. */ |
d62a17ae | 82 | void zclient_free(struct zclient *zclient) |
718e3744 | 83 | { |
d62a17ae | 84 | if (zclient->ibuf) |
85 | stream_free(zclient->ibuf); | |
86 | if (zclient->obuf) | |
87 | stream_free(zclient->obuf); | |
88 | if (zclient->wb) | |
89 | buffer_free(zclient->wb); | |
90 | ||
91 | XFREE(MTYPE_ZCLIENT, zclient); | |
718e3744 | 92 | } |
93 | ||
d7c0a89a QY |
94 | unsigned short *redist_check_instance(struct redist_proto *red, |
95 | unsigned short instance) | |
7c8ff89e | 96 | { |
d62a17ae | 97 | struct listnode *node; |
d7c0a89a | 98 | unsigned short *id; |
7c8ff89e | 99 | |
d62a17ae | 100 | if (!red->instances) |
101 | return NULL; | |
7c8ff89e | 102 | |
d62a17ae | 103 | for (ALL_LIST_ELEMENTS_RO(red->instances, node, id)) |
104 | if (*id == instance) | |
105 | return id; | |
7c8ff89e | 106 | |
d62a17ae | 107 | return NULL; |
7c8ff89e DS |
108 | } |
109 | ||
d7c0a89a | 110 | void redist_add_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 111 | { |
d7c0a89a | 112 | unsigned short *in; |
7c8ff89e | 113 | |
d62a17ae | 114 | red->enabled = 1; |
7c8ff89e | 115 | |
d62a17ae | 116 | if (!red->instances) |
117 | red->instances = list_new(); | |
7c8ff89e | 118 | |
d7c0a89a | 119 | in = XMALLOC(MTYPE_REDIST_INST, sizeof(unsigned short)); |
d62a17ae | 120 | *in = instance; |
121 | listnode_add(red->instances, in); | |
7c8ff89e DS |
122 | } |
123 | ||
d7c0a89a | 124 | void redist_del_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 125 | { |
d7c0a89a | 126 | unsigned short *id; |
d62a17ae | 127 | |
128 | id = redist_check_instance(red, instance); | |
129 | if (!id) | |
130 | return; | |
131 | ||
132 | listnode_delete(red->instances, id); | |
133 | XFREE(MTYPE_REDIST_INST, id); | |
134 | if (!red->instances->count) { | |
135 | red->enabled = 0; | |
acdf5e25 | 136 | list_delete_and_null(&red->instances); |
d62a17ae | 137 | } |
7c8ff89e DS |
138 | } |
139 | ||
718e3744 | 140 | /* Stop zebra client services. */ |
d62a17ae | 141 | void zclient_stop(struct zclient *zclient) |
718e3744 | 142 | { |
d62a17ae | 143 | afi_t afi; |
144 | int i; | |
145 | ||
146 | if (zclient_debug) | |
147 | zlog_debug("zclient stopped"); | |
148 | ||
149 | /* Stop threads. */ | |
150 | THREAD_OFF(zclient->t_read); | |
151 | THREAD_OFF(zclient->t_connect); | |
152 | THREAD_OFF(zclient->t_write); | |
153 | ||
154 | /* Reset streams. */ | |
155 | stream_reset(zclient->ibuf); | |
156 | stream_reset(zclient->obuf); | |
157 | ||
158 | /* Empty the write buffer. */ | |
159 | buffer_reset(zclient->wb); | |
160 | ||
161 | /* Close socket. */ | |
162 | if (zclient->sock >= 0) { | |
163 | close(zclient->sock); | |
164 | zclient->sock = -1; | |
165 | } | |
166 | zclient->fail = 0; | |
167 | ||
168 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
169 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
170 | vrf_bitmap_free(zclient->redist[afi][i]); | |
171 | zclient->redist[afi][i] = VRF_BITMAP_NULL; | |
172 | } | |
173 | redist_del_instance( | |
174 | &zclient->mi_redist[afi][zclient->redist_default], | |
175 | zclient->instance); | |
41246cb6 | 176 | } |
41246cb6 | 177 | |
d62a17ae | 178 | vrf_bitmap_free(zclient->default_information); |
179 | zclient->default_information = VRF_BITMAP_NULL; | |
718e3744 | 180 | } |
181 | ||
d62a17ae | 182 | void zclient_reset(struct zclient *zclient) |
718e3744 | 183 | { |
d62a17ae | 184 | afi_t afi; |
3d68677e | 185 | |
d62a17ae | 186 | zclient_stop(zclient); |
3d68677e | 187 | |
d62a17ae | 188 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
189 | redist_del_instance( | |
190 | &zclient->mi_redist[afi][zclient->redist_default], | |
191 | zclient->instance); | |
3d68677e | 192 | |
996c9314 LB |
193 | zclient_init(zclient, zclient->redist_default, zclient->instance, |
194 | zclient->privs); | |
718e3744 | 195 | } |
196 | ||
689f5a8c DL |
197 | /** |
198 | * Connect to zebra daemon. | |
199 | * @param zclient a pointer to zclient structure | |
200 | * @return socket fd just to make sure that connection established | |
201 | * @see zclient_init | |
e1a1880d | 202 | * @see zclient_new_notify |
689f5a8c DL |
203 | */ |
204 | int zclient_socket_connect(struct zclient *zclient) | |
718e3744 | 205 | { |
d62a17ae | 206 | int sock; |
207 | int ret; | |
d62a17ae | 208 | |
209 | /* We should think about IPv6 connection. */ | |
689f5a8c | 210 | sock = socket(zclient_addr.ss_family, SOCK_STREAM, 0); |
d62a17ae | 211 | if (sock < 0) |
212 | return -1; | |
213 | ||
689f5a8c | 214 | set_cloexec(sock); |
d62a17ae | 215 | |
342213ea DS |
216 | zclient->privs->change(ZPRIVS_RAISE); |
217 | setsockopt_so_sendbuf(sock, 1048576); | |
218 | zclient->privs->change(ZPRIVS_LOWER); | |
219 | ||
d62a17ae | 220 | /* Connect to zebra. */ |
996c9314 | 221 | ret = connect(sock, (struct sockaddr *)&zclient_addr, zclient_addr_len); |
d62a17ae | 222 | if (ret < 0) { |
223 | if (zclient_debug) | |
224 | zlog_warn("%s connect failure: %d(%s)", | |
225 | __PRETTY_FUNCTION__, errno, | |
226 | safe_strerror(errno)); | |
227 | close(sock); | |
228 | return -1; | |
229 | } | |
718e3744 | 230 | |
689f5a8c | 231 | zclient->sock = sock; |
d62a17ae | 232 | return sock; |
718e3744 | 233 | } |
234 | ||
d62a17ae | 235 | static int zclient_failed(struct zclient *zclient) |
634f9ea2 | 236 | { |
d62a17ae | 237 | zclient->fail++; |
238 | zclient_stop(zclient); | |
239 | zclient_event(ZCLIENT_CONNECT, zclient); | |
240 | return -1; | |
634f9ea2 | 241 | } |
242 | ||
d62a17ae | 243 | static int zclient_flush_data(struct thread *thread) |
634f9ea2 | 244 | { |
d62a17ae | 245 | struct zclient *zclient = THREAD_ARG(thread); |
246 | ||
247 | zclient->t_write = NULL; | |
248 | if (zclient->sock < 0) | |
249 | return -1; | |
250 | switch (buffer_flush_available(zclient->wb, zclient->sock)) { | |
251 | case BUFFER_ERROR: | |
252 | zlog_warn( | |
253 | "%s: buffer_flush_available failed on zclient fd %d, closing", | |
254 | __func__, zclient->sock); | |
255 | return zclient_failed(zclient); | |
256 | break; | |
257 | case BUFFER_PENDING: | |
258 | zclient->t_write = NULL; | |
259 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
260 | zclient->sock, &zclient->t_write); | |
261 | break; | |
262 | case BUFFER_EMPTY: | |
263 | break; | |
264 | } | |
265 | return 0; | |
634f9ea2 | 266 | } |
267 | ||
d62a17ae | 268 | int zclient_send_message(struct zclient *zclient) |
634f9ea2 | 269 | { |
d62a17ae | 270 | if (zclient->sock < 0) |
271 | return -1; | |
272 | switch (buffer_write(zclient->wb, zclient->sock, | |
273 | STREAM_DATA(zclient->obuf), | |
274 | stream_get_endp(zclient->obuf))) { | |
275 | case BUFFER_ERROR: | |
276 | zlog_warn("%s: buffer_write failed to zclient fd %d, closing", | |
277 | __func__, zclient->sock); | |
278 | return zclient_failed(zclient); | |
279 | break; | |
280 | case BUFFER_EMPTY: | |
281 | THREAD_OFF(zclient->t_write); | |
282 | break; | |
283 | case BUFFER_PENDING: | |
284 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
285 | zclient->sock, &zclient->t_write); | |
286 | break; | |
287 | } | |
288 | return 0; | |
634f9ea2 | 289 | } |
290 | ||
d62a17ae | 291 | void zclient_create_header(struct stream *s, uint16_t command, vrf_id_t vrf_id) |
c1b9800a | 292 | { |
d62a17ae | 293 | /* length placeholder, caller can update */ |
294 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
295 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
296 | stream_putc(s, ZSERV_VERSION); | |
a9ff90c4 | 297 | stream_putl(s, vrf_id); |
d62a17ae | 298 | stream_putw(s, command); |
c1b9800a | 299 | } |
300 | ||
d7c0a89a QY |
301 | int zclient_read_header(struct stream *s, int sock, uint16_t *size, |
302 | uint8_t *marker, uint8_t *version, vrf_id_t *vrf_id, | |
303 | uint16_t *cmd) | |
55119089 | 304 | { |
d62a17ae | 305 | if (stream_read(s, sock, ZEBRA_HEADER_SIZE) != ZEBRA_HEADER_SIZE) |
306 | return -1; | |
307 | ||
ec93aa12 DS |
308 | STREAM_GETW(s, *size); |
309 | *size -= ZEBRA_HEADER_SIZE; | |
310 | STREAM_GETC(s, *marker); | |
311 | STREAM_GETC(s, *version); | |
a9ff90c4 | 312 | STREAM_GETL(s, *vrf_id); |
ec93aa12 | 313 | STREAM_GETW(s, *cmd); |
d62a17ae | 314 | |
315 | if (*version != ZSERV_VERSION || *marker != ZEBRA_HEADER_MARKER) { | |
1ca3850c DS |
316 | zlog_ferr(LIB_ERR_ZAPI_MISSMATCH, |
317 | "%s: socket %d version mismatch, marker %d, version %d", | |
318 | __func__, sock, *marker, *version); | |
d62a17ae | 319 | return -1; |
320 | } | |
321 | ||
322 | if (*size && stream_read(s, sock, *size) != *size) | |
323 | return -1; | |
324 | ||
ec93aa12 | 325 | stream_failure: |
d62a17ae | 326 | return 0; |
55119089 ND |
327 | } |
328 | ||
124ead27 QY |
329 | bool zapi_parse_header(struct stream *zmsg, struct zmsghdr *hdr) |
330 | { | |
331 | STREAM_GETW(zmsg, hdr->length); | |
332 | STREAM_GETC(zmsg, hdr->marker); | |
333 | STREAM_GETC(zmsg, hdr->version); | |
107afcd1 | 334 | STREAM_GETL(zmsg, hdr->vrf_id); |
124ead27 QY |
335 | STREAM_GETW(zmsg, hdr->command); |
336 | return true; | |
337 | stream_failure: | |
338 | return false; | |
339 | } | |
340 | ||
634f9ea2 | 341 | /* Send simple Zebra message. */ |
d62a17ae | 342 | static int zebra_message_send(struct zclient *zclient, int command, |
343 | vrf_id_t vrf_id) | |
718e3744 | 344 | { |
d62a17ae | 345 | struct stream *s; |
718e3744 | 346 | |
d62a17ae | 347 | /* Get zclient output buffer. */ |
348 | s = zclient->obuf; | |
349 | stream_reset(s); | |
718e3744 | 350 | |
d62a17ae | 351 | /* Send very simple command only Zebra message. */ |
352 | zclient_create_header(s, command, vrf_id); | |
353 | ||
354 | return zclient_send_message(zclient); | |
718e3744 | 355 | } |
356 | ||
d62a17ae | 357 | static int zebra_hello_send(struct zclient *zclient) |
2ea1ab1c | 358 | { |
d62a17ae | 359 | struct stream *s; |
360 | ||
361 | if (zclient->redist_default) { | |
362 | s = zclient->obuf; | |
363 | stream_reset(s); | |
364 | ||
365 | /* The VRF ID in the HELLO message is always 0. */ | |
366 | zclient_create_header(s, ZEBRA_HELLO, VRF_DEFAULT); | |
367 | stream_putc(s, zclient->redist_default); | |
368 | stream_putw(s, zclient->instance); | |
e1a1880d DS |
369 | if (zclient->receive_notify) |
370 | stream_putc(s, 1); | |
371 | else | |
372 | stream_putc(s, 0); | |
373 | ||
d62a17ae | 374 | stream_putw_at(s, 0, stream_get_endp(s)); |
375 | return zclient_send_message(zclient); | |
376 | } | |
377 | ||
378 | return 0; | |
2ea1ab1c VT |
379 | } |
380 | ||
7d061b3c | 381 | void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id, afi_t afi, |
339e36d2 | 382 | mpls_label_t label, enum lsp_types_t ltype) |
c83c5e44 DS |
383 | { |
384 | struct stream *s; | |
385 | ||
386 | s = zclient->obuf; | |
387 | stream_reset(s); | |
388 | ||
389 | zclient_create_header(s, ZEBRA_VRF_LABEL, vrf_id); | |
390 | stream_putl(s, label); | |
7d061b3c | 391 | stream_putc(s, afi); |
339e36d2 | 392 | stream_putc(s, ltype); |
c83c5e44 DS |
393 | stream_putw_at(s, 0, stream_get_endp(s)); |
394 | zclient_send_message(zclient); | |
395 | } | |
396 | ||
0e5223e7 | 397 | /* Send register requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 398 | void zclient_send_reg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
7076bb2f | 399 | { |
d62a17ae | 400 | int i; |
401 | afi_t afi; | |
402 | ||
d62a17ae | 403 | /* If not connected to the zebra yet. */ |
404 | if (zclient->sock < 0) | |
405 | return; | |
406 | ||
407 | if (zclient_debug) | |
408 | zlog_debug("%s: send register messages for VRF %u", __func__, | |
409 | vrf_id); | |
410 | ||
411 | /* We need router-id information. */ | |
412 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_ADD, vrf_id); | |
413 | ||
414 | /* We need interface information. */ | |
415 | zebra_message_send(zclient, ZEBRA_INTERFACE_ADD, vrf_id); | |
416 | ||
417 | /* Set unwanted redistribute route. */ | |
418 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
419 | vrf_bitmap_set(zclient->redist[afi][zclient->redist_default], | |
420 | vrf_id); | |
421 | ||
422 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
423 | if (vrf_id == VRF_DEFAULT) { |
424 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
425 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
426 | if (!zclient->mi_redist[afi][i].enabled) | |
427 | continue; | |
428 | ||
429 | struct listnode *node; | |
d7c0a89a | 430 | unsigned short *id; |
0d9e7f45 DS |
431 | |
432 | for (ALL_LIST_ELEMENTS_RO( | |
433 | zclient->mi_redist[afi][i] | |
996c9314 LB |
434 | .instances, |
435 | node, id)) | |
0d9e7f45 DS |
436 | if (!(i == zclient->redist_default |
437 | && *id == zclient->instance)) | |
438 | zebra_redistribute_send( | |
439 | ZEBRA_REDISTRIBUTE_ADD, | |
996c9314 | 440 | zclient, afi, i, *id, |
0d9e7f45 DS |
441 | VRF_DEFAULT); |
442 | } | |
443 | } | |
444 | } | |
d62a17ae | 445 | |
70172b1c | 446 | /* Resend all redistribute request. */ |
d62a17ae | 447 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
448 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
449 | if (i != zclient->redist_default | |
450 | && vrf_bitmap_check(zclient->redist[afi][i], | |
451 | vrf_id)) | |
452 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, | |
453 | zclient, afi, i, 0, | |
454 | vrf_id); | |
455 | ||
456 | /* If default information is needed. */ | |
457 | if (vrf_bitmap_check(zclient->default_information, VRF_DEFAULT)) | |
458 | zebra_message_send(zclient, ZEBRA_REDISTRIBUTE_DEFAULT_ADD, | |
459 | vrf_id); | |
7076bb2f FL |
460 | } |
461 | ||
0e5223e7 | 462 | /* Send unregister requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 463 | void zclient_send_dereg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
0e5223e7 | 464 | { |
d62a17ae | 465 | int i; |
466 | afi_t afi; | |
467 | ||
d62a17ae | 468 | /* If not connected to the zebra yet. */ |
469 | if (zclient->sock < 0) | |
470 | return; | |
471 | ||
472 | if (zclient_debug) | |
473 | zlog_debug("%s: send deregister messages for VRF %u", __func__, | |
474 | vrf_id); | |
475 | ||
476 | /* We need router-id information. */ | |
477 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_DELETE, vrf_id); | |
478 | ||
479 | /* We need interface information. */ | |
480 | zebra_message_send(zclient, ZEBRA_INTERFACE_DELETE, vrf_id); | |
481 | ||
482 | /* Set unwanted redistribute route. */ | |
483 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
09eef679 DS |
484 | vrf_bitmap_unset(zclient->redist[afi][zclient->redist_default], |
485 | vrf_id); | |
d62a17ae | 486 | |
487 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
488 | if (vrf_id == VRF_DEFAULT) { |
489 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
490 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
491 | if (!zclient->mi_redist[afi][i].enabled) | |
492 | continue; | |
493 | ||
494 | struct listnode *node; | |
d7c0a89a | 495 | unsigned short *id; |
0d9e7f45 DS |
496 | |
497 | for (ALL_LIST_ELEMENTS_RO( | |
498 | zclient->mi_redist[afi][i] | |
996c9314 LB |
499 | .instances, |
500 | node, id)) | |
0d9e7f45 DS |
501 | if (!(i == zclient->redist_default |
502 | && *id == zclient->instance)) | |
503 | zebra_redistribute_send( | |
504 | ZEBRA_REDISTRIBUTE_DELETE, | |
996c9314 | 505 | zclient, afi, i, *id, |
0d9e7f45 DS |
506 | VRF_DEFAULT); |
507 | } | |
508 | } | |
509 | } | |
d62a17ae | 510 | |
511 | /* Flush all redistribute request. */ | |
512 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
513 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
514 | if (i != zclient->redist_default | |
515 | && vrf_bitmap_check(zclient->redist[afi][i], | |
516 | vrf_id)) | |
517 | zebra_redistribute_send( | |
518 | ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
519 | i, 0, vrf_id); | |
520 | ||
521 | /* If default information is needed. */ | |
522 | if (vrf_bitmap_check(zclient->default_information, VRF_DEFAULT)) | |
523 | zebra_message_send(zclient, ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, | |
524 | vrf_id); | |
0e5223e7 | 525 | } |
526 | ||
4a04e5f7 | 527 | /* Send request to zebra daemon to start or stop RA. */ |
d62a17ae | 528 | void zclient_send_interface_radv_req(struct zclient *zclient, vrf_id_t vrf_id, |
529 | struct interface *ifp, int enable, | |
530 | int ra_interval) | |
4a04e5f7 | 531 | { |
d62a17ae | 532 | struct stream *s; |
4a04e5f7 | 533 | |
d62a17ae | 534 | /* If not connected to the zebra yet. */ |
535 | if (zclient->sock < 0) | |
536 | return; | |
4a04e5f7 | 537 | |
d62a17ae | 538 | /* Form and send message. */ |
539 | s = zclient->obuf; | |
540 | stream_reset(s); | |
4a04e5f7 | 541 | |
d62a17ae | 542 | if (enable) |
543 | zclient_create_header(s, ZEBRA_INTERFACE_ENABLE_RADV, vrf_id); | |
544 | else | |
545 | zclient_create_header(s, ZEBRA_INTERFACE_DISABLE_RADV, vrf_id); | |
4a04e5f7 | 546 | |
d62a17ae | 547 | stream_putl(s, ifp->ifindex); |
548 | stream_putl(s, ra_interval); | |
4a04e5f7 | 549 | |
d62a17ae | 550 | stream_putw_at(s, 0, stream_get_endp(s)); |
4a04e5f7 | 551 | |
d62a17ae | 552 | zclient_send_message(zclient); |
4a04e5f7 | 553 | } |
554 | ||
718e3744 | 555 | /* Make connection to zebra daemon. */ |
d62a17ae | 556 | int zclient_start(struct zclient *zclient) |
718e3744 | 557 | { |
d62a17ae | 558 | if (zclient_debug) |
559 | zlog_info("zclient_start is called"); | |
560 | ||
d62a17ae | 561 | /* If already connected to the zebra. */ |
562 | if (zclient->sock >= 0) | |
563 | return 0; | |
564 | ||
565 | /* Check connect thread. */ | |
566 | if (zclient->t_connect) | |
567 | return 0; | |
568 | ||
569 | if (zclient_socket_connect(zclient) < 0) { | |
570 | if (zclient_debug) | |
571 | zlog_debug("zclient connection fail"); | |
572 | zclient->fail++; | |
573 | zclient_event(ZCLIENT_CONNECT, zclient); | |
574 | return -1; | |
575 | } | |
718e3744 | 576 | |
d62a17ae | 577 | if (set_nonblocking(zclient->sock) < 0) |
578 | zlog_warn("%s: set_nonblocking(%d) failed", __func__, | |
579 | zclient->sock); | |
718e3744 | 580 | |
d62a17ae | 581 | /* Clear fail count. */ |
582 | zclient->fail = 0; | |
583 | if (zclient_debug) | |
584 | zlog_debug("zclient connect success with socket [%d]", | |
585 | zclient->sock); | |
718e3744 | 586 | |
d62a17ae | 587 | /* Create read thread. */ |
588 | zclient_event(ZCLIENT_READ, zclient); | |
718e3744 | 589 | |
d62a17ae | 590 | zebra_hello_send(zclient); |
718e3744 | 591 | |
d62a17ae | 592 | /* Inform the successful connection. */ |
593 | if (zclient->zebra_connected) | |
594 | (*zclient->zebra_connected)(zclient); | |
718e3744 | 595 | |
d62a17ae | 596 | return 0; |
718e3744 | 597 | } |
6b0655a2 | 598 | |
078430f6 DS |
599 | /* Initialize zebra client. Argument redist_default is unwanted |
600 | redistribute route type. */ | |
d7c0a89a QY |
601 | void zclient_init(struct zclient *zclient, int redist_default, |
602 | unsigned short instance, struct zebra_privs_t *privs) | |
078430f6 | 603 | { |
d62a17ae | 604 | int afi, i; |
605 | ||
d62a17ae | 606 | /* Set -1 to the default socket value. */ |
607 | zclient->sock = -1; | |
342213ea | 608 | zclient->privs = privs; |
d62a17ae | 609 | |
610 | /* Clear redistribution flags. */ | |
611 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
612 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
613 | zclient->redist[afi][i] = vrf_bitmap_init(); | |
614 | ||
615 | /* Set unwanted redistribute route. bgpd does not need BGP route | |
616 | redistribution. */ | |
617 | zclient->redist_default = redist_default; | |
618 | zclient->instance = instance; | |
619 | /* Pending: make afi(s) an arg. */ | |
620 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
621 | redist_add_instance(&zclient->mi_redist[afi][redist_default], | |
622 | instance); | |
623 | ||
624 | /* Set default-information redistribute to zero. */ | |
625 | zclient->default_information = vrf_bitmap_init(); | |
d62a17ae | 626 | |
627 | if (zclient_debug) | |
628 | zlog_debug("zclient_start is called"); | |
629 | ||
630 | zclient_event(ZCLIENT_SCHEDULE, zclient); | |
7076bb2f | 631 | } |
078430f6 | 632 | |
7076bb2f FL |
633 | /* This function is a wrapper function for calling zclient_start from |
634 | timer or event thread. */ | |
d62a17ae | 635 | static int zclient_connect(struct thread *t) |
7076bb2f | 636 | { |
d62a17ae | 637 | struct zclient *zclient; |
078430f6 | 638 | |
d62a17ae | 639 | zclient = THREAD_ARG(t); |
640 | zclient->t_connect = NULL; | |
078430f6 | 641 | |
d62a17ae | 642 | if (zclient_debug) |
643 | zlog_debug("zclient_connect is called"); | |
078430f6 | 644 | |
d62a17ae | 645 | return zclient_start(zclient); |
078430f6 DS |
646 | } |
647 | ||
3c192540 DS |
648 | int zclient_send_rnh(struct zclient *zclient, int command, struct prefix *p, |
649 | bool exact_match, vrf_id_t vrf_id) | |
650 | { | |
651 | struct stream *s; | |
652 | ||
653 | s = zclient->obuf; | |
654 | stream_reset(s); | |
655 | zclient_create_header(s, command, vrf_id); | |
656 | stream_putc(s, (exact_match) ? 1 : 0); | |
657 | ||
658 | stream_putw(s, PREFIX_FAMILY(p)); | |
659 | stream_putc(s, p->prefixlen); | |
660 | switch (PREFIX_FAMILY(p)) { | |
661 | case AF_INET: | |
662 | stream_put_in_addr(s, &p->u.prefix4); | |
663 | break; | |
664 | case AF_INET6: | |
665 | stream_put(s, &(p->u.prefix6), 16); | |
666 | break; | |
667 | default: | |
668 | break; | |
669 | } | |
670 | stream_putw_at(s, 0, stream_get_endp(s)); | |
671 | ||
672 | return zclient_send_message(zclient); | |
673 | } | |
674 | ||
d62a17ae | 675 | /* |
676 | * "xdr_encode"-like interface that allows daemon (client) to send | |
677 | * a message to zebra server for a route that needs to be | |
678 | * added/deleted to the kernel. Info about the route is specified | |
679 | * by the caller in a struct zapi_ipv4. zapi_ipv4_read() then writes | |
680 | * the info down the zclient socket using the stream_* functions. | |
681 | * | |
682 | * The corresponding read ("xdr_decode") function on the server | |
683 | * side is zread_ipv4_add()/zread_ipv4_delete(). | |
684 | * | |
685 | * 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 | |
686 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
687 | * | Length (2) | Command | Route Type | | |
688 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
689 | * | ZEBRA Flags | Message Flags | Prefix length | | |
690 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
691 | * | Destination IPv4 Prefix for route | | |
692 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
693 | * | Nexthop count | | |
694 | * +-+-+-+-+-+-+-+-+ | |
695 | * | |
696 | * | |
697 | * A number of IPv4 nexthop(s) or nexthop interface index(es) are then | |
698 | * described, as per the Nexthop count. Each nexthop described as: | |
699 | * | |
700 | * +-+-+-+-+-+-+-+-+ | |
701 | * | Nexthop Type | Set to one of ZEBRA_NEXTHOP_* | |
702 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
703 | * | IPv4 Nexthop address or Interface Index number | | |
704 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
705 | * | |
09a484dd DL |
706 | * Alternatively, if the route is a blackhole route, then Nexthop count |
707 | * is set to 1 and a nexthop of type NEXTHOP_TYPE_BLACKHOLE is the sole | |
708 | * nexthop. | |
d62a17ae | 709 | * |
710 | * The original struct zapi_ipv4, zapi_ipv4_route() and zread_ipv4_*() | |
711 | * infrastructure was built around the traditional (32-bit "gate OR | |
712 | * ifindex") nexthop data unit. A special encoding can be used to feed | |
713 | * onlink (64-bit "gate AND ifindex") nexthops into zapi_ipv4_route() | |
714 | * using the same zapi_ipv4 structure. This is done by setting zapi_ipv4 | |
715 | * fields as follows: | |
716 | * - .message |= ZAPI_MESSAGE_NEXTHOP | ZAPI_MESSAGE_ONLINK | |
717 | * - .nexthop_num == .ifindex_num | |
718 | * - .nexthop and .ifindex are filled with gate and ifindex parts of | |
719 | * each compound nexthop, both in the same order | |
720 | * | |
721 | * zapi_ipv4_route() will produce two nexthop data units for each such | |
722 | * interleaved 64-bit nexthop. On the zserv side of the socket it will be | |
723 | * mapped to a singlle NEXTHOP_TYPE_IPV4_IFINDEX_OL RIB nexthop structure. | |
724 | * | |
725 | * If ZAPI_MESSAGE_DISTANCE is set, the distance value is written as a 1 | |
726 | * byte value. | |
727 | * | |
728 | * If ZAPI_MESSAGE_METRIC is set, the metric value is written as an 8 | |
729 | * byte value. | |
730 | * | |
731 | * If ZAPI_MESSAGE_TAG is set, the tag value is written as a 4 byte value | |
732 | * | |
733 | * If ZAPI_MESSAGE_MTU is set, the mtu value is written as a 4 byte value | |
734 | * | |
735 | * XXX: No attention paid to alignment. | |
736 | */ | |
d7c0a89a | 737 | int zapi_ipv4_route(uint8_t cmd, struct zclient *zclient, struct prefix_ipv4 *p, |
d62a17ae | 738 | struct zapi_ipv4 *api) |
718e3744 | 739 | { |
d62a17ae | 740 | int i; |
741 | int psize; | |
742 | struct stream *s; | |
743 | ||
744 | /* Reset stream. */ | |
745 | s = zclient->obuf; | |
746 | stream_reset(s); | |
747 | ||
748 | /* Some checks for labeled-unicast. The current expectation is that each | |
749 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
750 | */ | |
751 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
752 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
753 | /* We expect prefixes installed with labels and the number to | |
754 | * match | |
755 | * the number of nexthops. | |
756 | */ | |
757 | assert(api->label_num == api->nexthop_num); | |
758 | } | |
759 | ||
760 | zclient_create_header(s, cmd, api->vrf_id); | |
761 | ||
762 | /* Put type and nexthop. */ | |
763 | stream_putc(s, api->type); | |
764 | stream_putw(s, api->instance); | |
765 | stream_putl(s, api->flags); | |
766 | stream_putc(s, api->message); | |
767 | stream_putw(s, api->safi); | |
768 | ||
769 | /* Put prefix information. */ | |
770 | psize = PSIZE(p->prefixlen); | |
771 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 772 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 773 | |
774 | /* Nexthop, ifindex, distance and metric information. */ | |
775 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 776 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 777 | |
778 | for (i = 0; i < api->nexthop_num; i++) { | |
779 | stream_putc(s, NEXTHOP_TYPE_IPV4); | |
780 | stream_put_in_addr(s, api->nexthop[i]); | |
781 | /* For labeled-unicast, each nexthop is followed by | |
782 | * label. */ | |
783 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
784 | stream_putl(s, api->label[i]); | |
785 | } | |
786 | for (i = 0; i < api->ifindex_num; i++) { | |
787 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
788 | stream_putl(s, api->ifindex[i]); | |
789 | } | |
790 | } | |
791 | ||
792 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
793 | stream_putc(s, api->distance); | |
794 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
795 | stream_putl(s, api->metric); | |
796 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
797 | stream_putl(s, api->tag); | |
798 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
799 | stream_putl(s, api->mtu); | |
800 | ||
801 | /* Put length at the first point of the stream. */ | |
802 | stream_putw_at(s, 0, stream_get_endp(s)); | |
803 | ||
804 | return zclient_send_message(zclient); | |
718e3744 | 805 | } |
806 | ||
d7c0a89a | 807 | int zapi_ipv4_route_ipv6_nexthop(uint8_t cmd, struct zclient *zclient, |
d62a17ae | 808 | struct prefix_ipv4 *p, struct zapi_ipv6 *api) |
8a92a8a0 | 809 | { |
d62a17ae | 810 | int i; |
811 | int psize; | |
812 | struct stream *s; | |
813 | ||
814 | /* Reset stream. */ | |
815 | s = zclient->obuf; | |
816 | stream_reset(s); | |
817 | ||
818 | /* Some checks for labeled-unicast. The current expectation is that each | |
819 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
820 | */ | |
821 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
822 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
823 | /* We expect prefixes installed with labels and the number to | |
824 | * match | |
825 | * the number of nexthops. | |
826 | */ | |
827 | assert(api->label_num == api->nexthop_num); | |
8a92a8a0 | 828 | } |
d62a17ae | 829 | |
830 | zclient_create_header(s, cmd, api->vrf_id); | |
831 | ||
832 | /* Put type and nexthop. */ | |
833 | stream_putc(s, api->type); | |
834 | stream_putw(s, api->instance); | |
835 | stream_putl(s, api->flags); | |
836 | stream_putc(s, api->message); | |
837 | stream_putw(s, api->safi); | |
838 | ||
839 | /* Put prefix information. */ | |
840 | psize = PSIZE(p->prefixlen); | |
841 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 842 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 843 | |
844 | /* Nexthop, ifindex, distance and metric information. */ | |
845 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 846 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 847 | |
848 | for (i = 0; i < api->nexthop_num; i++) { | |
849 | stream_putc(s, NEXTHOP_TYPE_IPV6); | |
d7c0a89a | 850 | stream_write(s, (uint8_t *)api->nexthop[i], 16); |
d62a17ae | 851 | /* For labeled-unicast, each nexthop is followed by |
852 | * label. */ | |
853 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
854 | stream_putl(s, api->label[i]); | |
855 | } | |
856 | for (i = 0; i < api->ifindex_num; i++) { | |
857 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
858 | stream_putl(s, api->ifindex[i]); | |
859 | } | |
8a92a8a0 | 860 | } |
8a92a8a0 | 861 | |
d62a17ae | 862 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
863 | stream_putc(s, api->distance); | |
864 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
865 | stream_putl(s, api->metric); | |
866 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
867 | stream_putl(s, api->tag); | |
868 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
869 | stream_putl(s, api->mtu); | |
8a92a8a0 | 870 | |
d62a17ae | 871 | /* Put length at the first point of the stream. */ |
872 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a92a8a0 | 873 | |
d62a17ae | 874 | return zclient_send_message(zclient); |
8a92a8a0 DS |
875 | } |
876 | ||
d7c0a89a | 877 | int zapi_ipv6_route(uint8_t cmd, struct zclient *zclient, struct prefix_ipv6 *p, |
d62a17ae | 878 | struct prefix_ipv6 *src_p, struct zapi_ipv6 *api) |
718e3744 | 879 | { |
d62a17ae | 880 | int i; |
881 | int psize; | |
882 | struct stream *s; | |
883 | ||
884 | /* either we have !SRCPFX && src_p == NULL, or SRCPFX && src_p != NULL | |
885 | */ | |
886 | assert(!(api->message & ZAPI_MESSAGE_SRCPFX) == !src_p); | |
887 | ||
888 | /* Reset stream. */ | |
889 | s = zclient->obuf; | |
890 | stream_reset(s); | |
891 | ||
892 | /* Some checks for labeled-unicast. The current expectation is that each | |
893 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
894 | */ | |
895 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
896 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
897 | /* We expect prefixes installed with labels and the number to | |
898 | * match | |
899 | * the number of nexthops. | |
900 | */ | |
901 | assert(api->label_num == api->nexthop_num); | |
718e3744 | 902 | } |
d62a17ae | 903 | |
904 | zclient_create_header(s, cmd, api->vrf_id); | |
905 | ||
906 | /* Put type and nexthop. */ | |
907 | stream_putc(s, api->type); | |
908 | stream_putw(s, api->instance); | |
909 | stream_putl(s, api->flags); | |
910 | stream_putc(s, api->message); | |
911 | stream_putw(s, api->safi); | |
912 | ||
913 | /* Put prefix information. */ | |
914 | psize = PSIZE(p->prefixlen); | |
915 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 916 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 917 | |
918 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
919 | psize = PSIZE(src_p->prefixlen); | |
920 | stream_putc(s, src_p->prefixlen); | |
d7c0a89a | 921 | stream_write(s, (uint8_t *)&src_p->prefix, psize); |
718e3744 | 922 | } |
718e3744 | 923 | |
d62a17ae | 924 | /* Nexthop, ifindex, distance and metric information. */ |
925 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 926 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 927 | |
928 | for (i = 0; i < api->nexthop_num; i++) { | |
929 | stream_putc(s, NEXTHOP_TYPE_IPV6); | |
d7c0a89a | 930 | stream_write(s, (uint8_t *)api->nexthop[i], 16); |
d62a17ae | 931 | /* For labeled-unicast, each nexthop is followed by |
932 | * label. */ | |
933 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
934 | stream_putl(s, api->label[i]); | |
935 | } | |
936 | for (i = 0; i < api->ifindex_num; i++) { | |
937 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
938 | stream_putl(s, api->ifindex[i]); | |
939 | } | |
940 | } | |
718e3744 | 941 | |
d62a17ae | 942 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
943 | stream_putc(s, api->distance); | |
944 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
945 | stream_putl(s, api->metric); | |
946 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
947 | stream_putl(s, api->tag); | |
948 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
949 | stream_putl(s, api->mtu); | |
718e3744 | 950 | |
d62a17ae | 951 | /* Put length at the first point of the stream. */ |
952 | stream_putw_at(s, 0, stream_get_endp(s)); | |
953 | ||
954 | return zclient_send_message(zclient); | |
718e3744 | 955 | } |
718e3744 | 956 | |
d7c0a89a | 957 | int zclient_route_send(uint8_t cmd, struct zclient *zclient, |
0e51b4a3 | 958 | struct zapi_route *api) |
657cde12 | 959 | { |
0e51b4a3 RW |
960 | if (zapi_route_encode(cmd, zclient->obuf, api) < 0) |
961 | return -1; | |
962 | return zclient_send_message(zclient); | |
963 | } | |
964 | ||
d7c0a89a | 965 | int zapi_route_encode(uint8_t cmd, struct stream *s, struct zapi_route *api) |
0e51b4a3 RW |
966 | { |
967 | struct zapi_nexthop *api_nh; | |
d62a17ae | 968 | int i; |
969 | int psize; | |
d62a17ae | 970 | |
d62a17ae | 971 | stream_reset(s); |
d62a17ae | 972 | zclient_create_header(s, cmd, api->vrf_id); |
973 | ||
d62a17ae | 974 | stream_putc(s, api->type); |
975 | stream_putw(s, api->instance); | |
976 | stream_putl(s, api->flags); | |
977 | stream_putc(s, api->message); | |
832d0f56 | 978 | stream_putc(s, api->safi); |
d62a17ae | 979 | |
980 | /* Put prefix information. */ | |
0e51b4a3 | 981 | stream_putc(s, api->prefix.family); |
bb1b9c47 RW |
982 | psize = PSIZE(api->prefix.prefixlen); |
983 | stream_putc(s, api->prefix.prefixlen); | |
d7c0a89a | 984 | stream_write(s, (uint8_t *)&api->prefix.u.prefix, psize); |
d62a17ae | 985 | |
986 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
bb1b9c47 RW |
987 | psize = PSIZE(api->src_prefix.prefixlen); |
988 | stream_putc(s, api->src_prefix.prefixlen); | |
d7c0a89a | 989 | stream_write(s, (uint8_t *)&api->src_prefix.prefix, psize); |
d62a17ae | 990 | } |
991 | ||
0e51b4a3 | 992 | /* Nexthops. */ |
d62a17ae | 993 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { |
bb1b9c47 RW |
994 | /* limit the number of nexthops if necessary */ |
995 | if (api->nexthop_num > MULTIPATH_NUM) { | |
996 | char buf[PREFIX2STR_BUFFER]; | |
997 | ||
998 | prefix2str(&api->prefix, buf, sizeof(buf)); | |
999 | zlog_warn( | |
a74e593b RW |
1000 | "%s: prefix %s: can't encode %u nexthops " |
1001 | "(maximum is %u)", | |
1002 | __func__, buf, api->nexthop_num, MULTIPATH_NUM); | |
1003 | return -1; | |
bb1b9c47 RW |
1004 | } |
1005 | ||
b5f79651 | 1006 | stream_putw(s, api->nexthop_num); |
d62a17ae | 1007 | |
1008 | for (i = 0; i < api->nexthop_num; i++) { | |
bb1b9c47 RW |
1009 | api_nh = &api->nexthops[i]; |
1010 | ||
4a7371e9 | 1011 | stream_putl(s, api_nh->vrf_id); |
bb1b9c47 RW |
1012 | stream_putc(s, api_nh->type); |
1013 | switch (api_nh->type) { | |
d62a17ae | 1014 | case NEXTHOP_TYPE_BLACKHOLE: |
94758e66 | 1015 | stream_putc(s, api_nh->bh_type); |
d62a17ae | 1016 | break; |
1017 | case NEXTHOP_TYPE_IPV4: | |
bb1b9c47 | 1018 | stream_put_in_addr(s, &api_nh->gate.ipv4); |
d62a17ae | 1019 | break; |
1020 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
bb1b9c47 RW |
1021 | stream_put_in_addr(s, &api_nh->gate.ipv4); |
1022 | stream_putl(s, api_nh->ifindex); | |
d62a17ae | 1023 | break; |
1024 | case NEXTHOP_TYPE_IFINDEX: | |
bb1b9c47 | 1025 | stream_putl(s, api_nh->ifindex); |
d62a17ae | 1026 | break; |
1027 | case NEXTHOP_TYPE_IPV6: | |
d7c0a89a | 1028 | stream_write(s, (uint8_t *)&api_nh->gate.ipv6, |
bb1b9c47 | 1029 | 16); |
d62a17ae | 1030 | break; |
1031 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
d7c0a89a | 1032 | stream_write(s, (uint8_t *)&api_nh->gate.ipv6, |
bb1b9c47 RW |
1033 | 16); |
1034 | stream_putl(s, api_nh->ifindex); | |
d62a17ae | 1035 | break; |
ec93aa12 | 1036 | default: |
996c9314 LB |
1037 | zlog_warn( |
1038 | "%s: Specified Nexthop type %d does not exist", | |
1039 | __PRETTY_FUNCTION__, api_nh->type); | |
ec93aa12 | 1040 | return -1; |
d62a17ae | 1041 | } |
bb1b9c47 | 1042 | |
52dd3aa4 RW |
1043 | /* MPLS labels for BGP-LU or Segment Routing */ |
1044 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) { | |
1045 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1046 | char buf[PREFIX2STR_BUFFER]; | |
1047 | prefix2str(&api->prefix, buf, | |
1048 | sizeof(buf)); | |
1ca3850c DS |
1049 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
1050 | "%s: prefix %s: can't encode " | |
1051 | "%u labels (maximum is %u)", | |
1052 | __func__, buf, | |
1053 | api_nh->label_num, | |
1054 | MPLS_MAX_LABELS); | |
52dd3aa4 RW |
1055 | return -1; |
1056 | } | |
1057 | ||
1058 | stream_putc(s, api_nh->label_num); | |
1059 | stream_put(s, &api_nh->labels[0], | |
1060 | api_nh->label_num | |
1061 | * sizeof(mpls_label_t)); | |
1062 | } | |
a317a9b9 | 1063 | |
1064 | /* Router MAC for EVPN routes. */ | |
1065 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
1066 | stream_put(s, &(api_nh->rmac), | |
1067 | sizeof(struct ethaddr)); | |
d62a17ae | 1068 | } |
1069 | } | |
1070 | ||
0e51b4a3 | 1071 | /* Attributes. */ |
d62a17ae | 1072 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
1073 | stream_putc(s, api->distance); | |
1074 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
1075 | stream_putl(s, api->metric); | |
1076 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
1077 | stream_putl(s, api->tag); | |
1078 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
1079 | stream_putl(s, api->mtu); | |
ba1849ef DS |
1080 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1081 | stream_putl(s, api->tableid); | |
d62a17ae | 1082 | |
1083 | /* Put length at the first point of the stream. */ | |
1084 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1085 | ||
0e51b4a3 RW |
1086 | return 0; |
1087 | } | |
1088 | ||
1089 | int zapi_route_decode(struct stream *s, struct zapi_route *api) | |
1090 | { | |
1091 | struct zapi_nexthop *api_nh; | |
1092 | int i; | |
1093 | ||
1094 | memset(api, 0, sizeof(*api)); | |
1095 | ||
1096 | /* Type, flags, message. */ | |
ec93aa12 DS |
1097 | STREAM_GETC(s, api->type); |
1098 | if (api->type > ZEBRA_ROUTE_MAX) { | |
1099 | zlog_warn("%s: Specified route type: %d is not a legal value\n", | |
996c9314 | 1100 | __PRETTY_FUNCTION__, api->type); |
ec93aa12 DS |
1101 | return -1; |
1102 | } | |
1103 | ||
1104 | STREAM_GETW(s, api->instance); | |
1105 | STREAM_GETL(s, api->flags); | |
1106 | STREAM_GETC(s, api->message); | |
832d0f56 | 1107 | STREAM_GETC(s, api->safi); |
0e51b4a3 RW |
1108 | |
1109 | /* Prefix. */ | |
ec93aa12 DS |
1110 | STREAM_GETC(s, api->prefix.family); |
1111 | STREAM_GETC(s, api->prefix.prefixlen); | |
0e51b4a3 RW |
1112 | switch (api->prefix.family) { |
1113 | case AF_INET: | |
ec93aa12 | 1114 | if (api->prefix.prefixlen > IPV4_MAX_PREFIXLEN) { |
996c9314 LB |
1115 | zlog_warn( |
1116 | "%s: V4 prefixlen is %d which should not be more than 32", | |
1117 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1118 | return -1; |
1119 | } | |
0e51b4a3 RW |
1120 | break; |
1121 | case AF_INET6: | |
ec93aa12 | 1122 | if (api->prefix.prefixlen > IPV6_MAX_PREFIXLEN) { |
996c9314 LB |
1123 | zlog_warn( |
1124 | "%s: v6 prefixlen is %d which should not be more than 128", | |
1125 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1126 | return -1; |
1127 | } | |
0e51b4a3 | 1128 | break; |
ec93aa12 DS |
1129 | default: |
1130 | zlog_warn("%s: Specified family %d is not v4 or v6", | |
1131 | __PRETTY_FUNCTION__, api->prefix.family); | |
1132 | return -1; | |
0e51b4a3 | 1133 | } |
ec93aa12 DS |
1134 | STREAM_GET(&api->prefix.u.prefix, s, PSIZE(api->prefix.prefixlen)); |
1135 | ||
0e51b4a3 RW |
1136 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { |
1137 | api->src_prefix.family = AF_INET6; | |
ec93aa12 DS |
1138 | STREAM_GETC(s, api->src_prefix.prefixlen); |
1139 | if (api->src_prefix.prefixlen > IPV6_MAX_PREFIXLEN) { | |
996c9314 LB |
1140 | zlog_warn( |
1141 | "%s: SRC Prefix prefixlen received: %d is too large", | |
1142 | __PRETTY_FUNCTION__, api->src_prefix.prefixlen); | |
ec93aa12 DS |
1143 | return -1; |
1144 | } | |
1145 | STREAM_GET(&api->src_prefix.prefix, s, | |
0e51b4a3 RW |
1146 | PSIZE(api->src_prefix.prefixlen)); |
1147 | ||
1148 | if (api->prefix.family != AF_INET6 | |
ec93aa12 | 1149 | || api->src_prefix.prefixlen == 0) { |
996c9314 LB |
1150 | zlog_warn( |
1151 | "%s: SRC prefix specified in some manner that makes no sense", | |
1152 | __PRETTY_FUNCTION__); | |
ec93aa12 DS |
1153 | return -1; |
1154 | } | |
0e51b4a3 RW |
1155 | } |
1156 | ||
1157 | /* Nexthops. */ | |
1158 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
ec93aa12 | 1159 | STREAM_GETW(s, api->nexthop_num); |
0e51b4a3 RW |
1160 | if (api->nexthop_num > MULTIPATH_NUM) { |
1161 | zlog_warn("%s: invalid number of nexthops (%u)", | |
1162 | __func__, api->nexthop_num); | |
1163 | return -1; | |
1164 | } | |
1165 | ||
1166 | for (i = 0; i < api->nexthop_num; i++) { | |
1167 | api_nh = &api->nexthops[i]; | |
1168 | ||
4a7371e9 | 1169 | STREAM_GETL(s, api_nh->vrf_id); |
ec93aa12 | 1170 | STREAM_GETC(s, api_nh->type); |
0e51b4a3 RW |
1171 | switch (api_nh->type) { |
1172 | case NEXTHOP_TYPE_BLACKHOLE: | |
ec93aa12 | 1173 | STREAM_GETC(s, api_nh->bh_type); |
0e51b4a3 RW |
1174 | break; |
1175 | case NEXTHOP_TYPE_IPV4: | |
ec93aa12 DS |
1176 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, |
1177 | IPV4_MAX_BYTELEN); | |
0e51b4a3 RW |
1178 | break; |
1179 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
ec93aa12 DS |
1180 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, |
1181 | IPV4_MAX_BYTELEN); | |
1182 | STREAM_GETL(s, api_nh->ifindex); | |
0e51b4a3 RW |
1183 | break; |
1184 | case NEXTHOP_TYPE_IFINDEX: | |
ec93aa12 | 1185 | STREAM_GETL(s, api_nh->ifindex); |
0e51b4a3 RW |
1186 | break; |
1187 | case NEXTHOP_TYPE_IPV6: | |
ec93aa12 | 1188 | STREAM_GET(&api_nh->gate.ipv6, s, 16); |
0e51b4a3 RW |
1189 | break; |
1190 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
ec93aa12 DS |
1191 | STREAM_GET(&api_nh->gate.ipv6, s, 16); |
1192 | STREAM_GETL(s, api_nh->ifindex); | |
0e51b4a3 | 1193 | break; |
ec93aa12 | 1194 | default: |
996c9314 LB |
1195 | zlog_warn( |
1196 | "%s: Specified nexthop type %d does not exist", | |
1197 | __PRETTY_FUNCTION__, api_nh->type); | |
ec93aa12 | 1198 | return -1; |
0e51b4a3 RW |
1199 | } |
1200 | ||
52dd3aa4 | 1201 | /* MPLS labels for BGP-LU or Segment Routing */ |
0e51b4a3 | 1202 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) { |
ec93aa12 | 1203 | STREAM_GETC(s, api_nh->label_num); |
52dd3aa4 RW |
1204 | |
1205 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1206 | zlog_warn( | |
1207 | "%s: invalid number of MPLS " | |
1208 | "labels (%u)", | |
1209 | __func__, api_nh->label_num); | |
1210 | return -1; | |
1211 | } | |
1212 | ||
ec93aa12 | 1213 | STREAM_GET(&api_nh->labels[0], s, |
52dd3aa4 RW |
1214 | api_nh->label_num |
1215 | * sizeof(mpls_label_t)); | |
0e51b4a3 | 1216 | } |
a317a9b9 | 1217 | |
1218 | /* Router MAC for EVPN routes. */ | |
1219 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
1220 | stream_get(&(api_nh->rmac), s, | |
1221 | sizeof(struct ethaddr)); | |
0e51b4a3 RW |
1222 | } |
1223 | } | |
1224 | ||
1225 | /* Attributes. */ | |
1226 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
ec93aa12 | 1227 | STREAM_GETC(s, api->distance); |
0e51b4a3 | 1228 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) |
ec93aa12 | 1229 | STREAM_GETL(s, api->metric); |
0e51b4a3 | 1230 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) |
ec93aa12 | 1231 | STREAM_GETL(s, api->tag); |
0e51b4a3 | 1232 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) |
ec93aa12 | 1233 | STREAM_GETL(s, api->mtu); |
ba1849ef DS |
1234 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1235 | STREAM_GETL(s, api->tableid); | |
0e51b4a3 | 1236 | |
ec93aa12 | 1237 | stream_failure: |
0e51b4a3 | 1238 | return 0; |
657cde12 DS |
1239 | } |
1240 | ||
0313523d FR |
1241 | static void zapi_encode_prefix(struct stream *s, struct prefix *p, |
1242 | uint8_t family) | |
0031a6bb PG |
1243 | { |
1244 | struct prefix any; | |
1245 | ||
1246 | if (!p) { | |
1247 | memset(&any, 0, sizeof(any)); | |
1248 | any.family = family; | |
1249 | p = &any; | |
1250 | } | |
1251 | ||
1252 | stream_putc(s, p->family); | |
1253 | stream_putc(s, p->prefixlen); | |
1254 | stream_put(s, &p->u.prefix, prefix_blen(p)); | |
1255 | } | |
1256 | ||
0313523d | 1257 | int zapi_pbr_rule_encode(uint8_t cmd, struct stream *s, struct pbr_rule *zrule) |
0031a6bb PG |
1258 | { |
1259 | stream_reset(s); | |
1260 | zclient_create_header(s, cmd, zrule->vrf_id); | |
1261 | ||
1262 | /* | |
1263 | * We are sending one item at a time at the moment | |
1264 | */ | |
1265 | stream_putl(s, 1); | |
1266 | ||
1267 | stream_putl(s, zrule->seq); | |
1268 | stream_putl(s, zrule->priority); | |
1269 | stream_putl(s, zrule->unique); | |
1270 | ||
1271 | zapi_encode_prefix(s, &(zrule->filter.src_ip), | |
1272 | zrule->filter.src_ip.family); | |
0313523d | 1273 | stream_putw(s, zrule->filter.src_port); /* src port */ |
0031a6bb PG |
1274 | zapi_encode_prefix(s, &(zrule->filter.dst_ip), |
1275 | zrule->filter.src_ip.family); | |
0313523d FR |
1276 | stream_putw(s, zrule->filter.dst_port); /* dst port */ |
1277 | stream_putw(s, zrule->filter.fwmark); /* fwmark */ | |
0031a6bb PG |
1278 | |
1279 | stream_putl(s, zrule->action.table); | |
1280 | stream_putl(s, zrule->ifindex); | |
1281 | ||
1282 | /* Put length at the first point of the stream. */ | |
1283 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1284 | ||
1285 | return 0; | |
1286 | } | |
1287 | ||
7ea7b86e | 1288 | bool zapi_route_notify_decode(struct stream *s, struct prefix *p, |
28610f7e | 1289 | uint32_t *tableid, |
7ea7b86e DS |
1290 | enum zapi_route_notify_owner *note) |
1291 | { | |
7a1eb44b DS |
1292 | uint32_t t; |
1293 | ||
7ea7b86e DS |
1294 | STREAM_GET(note, s, sizeof(*note)); |
1295 | ||
1296 | STREAM_GETC(s, p->family); | |
1297 | STREAM_GETC(s, p->prefixlen); | |
996c9314 | 1298 | STREAM_GET(&p->u.prefix, s, prefix_blen(p)); |
7a1eb44b DS |
1299 | STREAM_GETL(s, t); |
1300 | ||
1301 | *tableid = t; | |
7ea7b86e DS |
1302 | |
1303 | return true; | |
1304 | ||
1305 | stream_failure: | |
1306 | return false; | |
1307 | } | |
1308 | ||
b6c5d343 DS |
1309 | bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno, |
1310 | uint32_t *priority, uint32_t *unique, | |
1311 | ifindex_t *ifindex, | |
1312 | enum zapi_rule_notify_owner *note) | |
1313 | { | |
1314 | uint32_t prio, seq, uni; | |
1315 | ifindex_t ifi; | |
1316 | ||
1317 | STREAM_GET(note, s, sizeof(*note)); | |
1318 | ||
1319 | STREAM_GETL(s, seq); | |
1320 | STREAM_GETL(s, prio); | |
1321 | STREAM_GETL(s, uni); | |
1322 | STREAM_GETL(s, ifi); | |
1323 | ||
1324 | if (zclient_debug) | |
0313523d FR |
1325 | zlog_debug("%s: %u %u %u %u", __PRETTY_FUNCTION__, seq, prio, |
1326 | uni, ifi); | |
b6c5d343 DS |
1327 | *seqno = seq; |
1328 | *priority = prio; | |
1329 | *unique = uni; | |
1330 | *ifindex = ifi; | |
1331 | ||
1332 | return true; | |
1333 | ||
1334 | stream_failure: | |
1335 | return false; | |
1336 | } | |
1337 | ||
0313523d FR |
1338 | bool zapi_ipset_notify_decode(struct stream *s, uint32_t *unique, |
1339 | enum zapi_ipset_notify_owner *note) | |
425bdd6b PG |
1340 | { |
1341 | uint32_t uni; | |
1342 | ||
1343 | STREAM_GET(note, s, sizeof(*note)); | |
1344 | ||
1345 | STREAM_GETL(s, uni); | |
1346 | ||
1347 | if (zclient_debug) | |
1348 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1349 | *unique = uni; | |
1350 | ||
1351 | return true; | |
1352 | ||
1353 | stream_failure: | |
1354 | return false; | |
1355 | } | |
1356 | ||
0313523d FR |
1357 | bool zapi_ipset_entry_notify_decode(struct stream *s, uint32_t *unique, |
1358 | char *ipset_name, | |
1359 | enum zapi_ipset_entry_notify_owner *note) | |
425bdd6b PG |
1360 | { |
1361 | uint32_t uni; | |
1362 | ||
1363 | STREAM_GET(note, s, sizeof(*note)); | |
1364 | ||
1365 | STREAM_GETL(s, uni); | |
1366 | ||
0313523d | 1367 | STREAM_GET(ipset_name, s, ZEBRA_IPSET_NAME_SIZE); |
425bdd6b PG |
1368 | |
1369 | if (zclient_debug) | |
1370 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1371 | *unique = uni; | |
1372 | ||
1373 | return true; | |
1374 | ||
1375 | stream_failure: | |
1376 | return false; | |
1377 | } | |
1378 | ||
c16a0a62 PG |
1379 | bool zapi_iptable_notify_decode(struct stream *s, |
1380 | uint32_t *unique, | |
1381 | enum zapi_iptable_notify_owner *note) | |
1382 | { | |
1383 | uint32_t uni; | |
1384 | ||
1385 | STREAM_GET(note, s, sizeof(*note)); | |
1386 | ||
1387 | STREAM_GETL(s, uni); | |
1388 | ||
1389 | if (zclient_debug) | |
1390 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1391 | *unique = uni; | |
1392 | ||
1393 | return true; | |
1394 | ||
1395 | stream_failure: | |
1396 | return false; | |
1397 | } | |
1398 | ||
4a749e2c DS |
1399 | struct nexthop *nexthop_from_zapi_nexthop(struct zapi_nexthop *znh) |
1400 | { | |
1401 | struct nexthop *n = nexthop_new(); | |
1402 | ||
1403 | n->type = znh->type; | |
4a7371e9 | 1404 | n->vrf_id = znh->vrf_id; |
4a749e2c DS |
1405 | n->ifindex = znh->ifindex; |
1406 | n->gate = znh->gate; | |
1407 | ||
1408 | /* | |
960035b2 | 1409 | * This function currently handles labels |
4a749e2c | 1410 | */ |
960035b2 PZ |
1411 | if (znh->label_num) { |
1412 | nexthop_add_labels(n, ZEBRA_LSP_NONE, znh->label_num, | |
0313523d | 1413 | znh->labels); |
960035b2 | 1414 | } |
4a749e2c DS |
1415 | |
1416 | return n; | |
1417 | } | |
1418 | ||
1419 | bool zapi_nexthop_update_decode(struct stream *s, struct zapi_route *nhr) | |
1420 | { | |
1421 | uint32_t i; | |
1422 | ||
1423 | memset(nhr, 0, sizeof(*nhr)); | |
1424 | ||
1425 | STREAM_GETW(s, nhr->prefix.family); | |
1426 | STREAM_GETC(s, nhr->prefix.prefixlen); | |
996c9314 | 1427 | switch (nhr->prefix.family) { |
4a749e2c DS |
1428 | case AF_INET: |
1429 | STREAM_GET(&nhr->prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1430 | break; | |
1431 | case AF_INET6: | |
1432 | STREAM_GET(&nhr->prefix.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1433 | break; | |
1434 | default: | |
1435 | break; | |
1436 | } | |
1437 | ||
05dd5aaf DS |
1438 | STREAM_GETC(s, nhr->type); |
1439 | STREAM_GETW(s, nhr->instance); | |
4a749e2c DS |
1440 | STREAM_GETC(s, nhr->distance); |
1441 | STREAM_GETL(s, nhr->metric); | |
1442 | STREAM_GETC(s, nhr->nexthop_num); | |
1443 | ||
996c9314 | 1444 | for (i = 0; i < nhr->nexthop_num; i++) { |
4a749e2c DS |
1445 | STREAM_GETC(s, nhr->nexthops[i].type); |
1446 | switch (nhr->nexthops[i].type) { | |
1447 | case NEXTHOP_TYPE_IPV4: | |
1448 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
996c9314 LB |
1449 | STREAM_GET(&nhr->nexthops[i].gate.ipv4.s_addr, s, |
1450 | IPV4_MAX_BYTELEN); | |
4a749e2c DS |
1451 | STREAM_GETL(s, nhr->nexthops[i].ifindex); |
1452 | break; | |
1453 | case NEXTHOP_TYPE_IFINDEX: | |
1454 | STREAM_GETL(s, nhr->nexthops[i].ifindex); | |
1455 | break; | |
1456 | case NEXTHOP_TYPE_IPV6: | |
1457 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
996c9314 LB |
1458 | STREAM_GET(&nhr->nexthops[i].gate.ipv6, s, |
1459 | IPV6_MAX_BYTELEN); | |
4a749e2c DS |
1460 | STREAM_GETL(s, nhr->nexthops[i].ifindex); |
1461 | break; | |
1462 | case NEXTHOP_TYPE_BLACKHOLE: | |
1463 | break; | |
1464 | } | |
0acf4df0 DS |
1465 | STREAM_GETC(s, nhr->nexthops[i].label_num); |
1466 | if (nhr->nexthops[i].label_num > MPLS_MAX_LABELS) { | |
1467 | zlog_warn("%s: invalid number of MPLS labels (%u)", | |
1468 | __func__, nhr->nexthops[i].label_num); | |
1469 | return false; | |
1470 | } | |
1471 | if (nhr->nexthops[i].label_num) | |
1472 | STREAM_GET(&nhr->nexthops[i].labels[0], s, | |
1473 | nhr->nexthops[i].label_num | |
0313523d | 1474 | * sizeof(mpls_label_t)); |
4a749e2c DS |
1475 | } |
1476 | ||
1477 | return true; | |
1478 | stream_failure: | |
1479 | return false; | |
1480 | } | |
1481 | ||
d62a17ae | 1482 | /* |
0a589359 | 1483 | * send a ZEBRA_REDISTRIBUTE_ADD or ZEBRA_REDISTRIBUTE_DELETE |
1484 | * for the route type (ZEBRA_ROUTE_KERNEL etc.). The zebra server will | |
d62a17ae | 1485 | * then set/unset redist[type] in the client handle (a struct zserv) for the |
0a589359 | 1486 | * sending client |
1487 | */ | |
d62a17ae | 1488 | int zebra_redistribute_send(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 1489 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 1490 | { |
d62a17ae | 1491 | struct stream *s; |
1492 | ||
1493 | s = zclient->obuf; | |
1494 | stream_reset(s); | |
1495 | ||
1496 | zclient_create_header(s, command, vrf_id); | |
1497 | stream_putc(s, afi); | |
1498 | stream_putc(s, type); | |
1499 | stream_putw(s, instance); | |
1500 | ||
1501 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1502 | ||
1503 | return zclient_send_message(zclient); | |
718e3744 | 1504 | } |
1505 | ||
d9178828 | 1506 | /* Get prefix in ZServ format; family should be filled in on prefix */ |
d62a17ae | 1507 | static void zclient_stream_get_prefix(struct stream *s, struct prefix *p) |
d9178828 | 1508 | { |
d62a17ae | 1509 | size_t plen = prefix_blen(p); |
d7c0a89a | 1510 | uint8_t c; |
d62a17ae | 1511 | p->prefixlen = 0; |
1512 | ||
1513 | if (plen == 0) | |
1514 | return; | |
1515 | ||
1516 | stream_get(&p->u.prefix, s, plen); | |
ec93aa12 | 1517 | STREAM_GETC(s, c); |
d62a17ae | 1518 | p->prefixlen = MIN(plen * 8, c); |
ec93aa12 DS |
1519 | |
1520 | stream_failure: | |
1521 | return; | |
d9178828 PJ |
1522 | } |
1523 | ||
18a6dce6 | 1524 | /* Router-id update from zebra daemon. */ |
d62a17ae | 1525 | void zebra_router_id_update_read(struct stream *s, struct prefix *rid) |
18a6dce6 | 1526 | { |
d62a17ae | 1527 | /* Fetch interface address. */ |
ec93aa12 | 1528 | STREAM_GETC(s, rid->family); |
d62a17ae | 1529 | |
1530 | zclient_stream_get_prefix(s, rid); | |
ec93aa12 DS |
1531 | |
1532 | stream_failure: | |
1533 | return; | |
18a6dce6 | 1534 | } |
1535 | ||
718e3744 | 1536 | /* Interface addition from zebra daemon. */ |
d62a17ae | 1537 | /* |
0a589359 | 1538 | * The format of the message sent with type ZEBRA_INTERFACE_ADD or |
1539 | * ZEBRA_INTERFACE_DELETE from zebra to the client is: | |
1540 | * 0 1 2 3 | |
1541 | * 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 | 1542 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1543 | * | ifname | | |
1544 | * | | | |
1545 | * | | | |
1546 | * | | | |
1547 | * | | | |
1548 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1549 | * | ifindex | |
1550 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1551 | * | status | | |
0a589359 | 1552 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1553 | * | if_flags | |
c77d4546 | 1554 | * | | |
0a589359 | 1555 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1556 | * | metric | |
1557 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2d7f0d76 DS |
1558 | * | speed | |
1559 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1560 | * | ifmtu | |
1561 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1562 | * | ifmtu6 | | |
1563 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1564 | * | bandwidth | | |
1565 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1566 | * | Link Layer Type | | |
0a589359 | 1567 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1568 | * | Harware Address Length | |
0a589359 | 1569 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1570 | * | Hardware Address if HW lenght different from 0 | |
1571 | * | ... max INTERFACE_HWADDR_MAX | | |
0a589359 | 1572 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1573 | * | Link_params? | Whether a link-params follows: 1 or 0. |
0a589359 | 1574 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1575 | * | Link_params 0 or 1 INTERFACE_LINK_PARAMS_SIZE sized | |
1576 | * | .... (struct if_link_params). | | |
0a589359 | 1577 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1578 | */ | |
1579 | ||
d62a17ae | 1580 | static void zclient_vrf_add(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1581 | { |
d62a17ae | 1582 | struct vrf *vrf; |
1583 | char vrfname_tmp[VRF_NAMSIZ]; | |
1584 | struct vrf_data data; | |
1892f15e | 1585 | |
d62a17ae | 1586 | stream_get(&data, zclient->ibuf, sizeof(struct vrf_data)); |
1587 | /* Read interface name. */ | |
1588 | stream_get(vrfname_tmp, zclient->ibuf, VRF_NAMSIZ); | |
1892f15e | 1589 | |
d62a17ae | 1590 | /* Lookup/create vrf by vrf_id. */ |
1591 | vrf = vrf_get(vrf_id, vrfname_tmp); | |
4691b65a PG |
1592 | vrf->data.l.table_id = data.l.table_id; |
1593 | memcpy(vrf->data.l.netns_name, data.l.netns_name, NS_NAMSIZ); | |
d62a17ae | 1594 | vrf_enable(vrf); |
1892f15e DS |
1595 | } |
1596 | ||
d62a17ae | 1597 | static void zclient_vrf_delete(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1598 | { |
d62a17ae | 1599 | struct vrf *vrf; |
1892f15e | 1600 | |
d62a17ae | 1601 | /* Lookup vrf by vrf_id. */ |
1602 | vrf = vrf_lookup_by_id(vrf_id); | |
1892f15e | 1603 | |
d62a17ae | 1604 | /* |
1605 | * If a routing protocol doesn't know about a | |
1606 | * vrf that is about to be deleted. There is | |
1607 | * no point in attempting to delete it. | |
1608 | */ | |
1609 | if (!vrf) | |
1610 | return; | |
beef1990 | 1611 | |
d62a17ae | 1612 | vrf_delete(vrf); |
1892f15e DS |
1613 | } |
1614 | ||
d62a17ae | 1615 | struct interface *zebra_interface_add_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1616 | { |
d62a17ae | 1617 | struct interface *ifp; |
1618 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
718e3744 | 1619 | |
d62a17ae | 1620 | /* Read interface name. */ |
1621 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
718e3744 | 1622 | |
d62a17ae | 1623 | /* Lookup/create interface by name. */ |
bcc24579 | 1624 | ifp = if_get_by_name(ifname_tmp, vrf_id, 0); |
718e3744 | 1625 | |
d62a17ae | 1626 | zebra_interface_if_set_value(s, ifp); |
718e3744 | 1627 | |
d62a17ae | 1628 | return ifp; |
718e3744 | 1629 | } |
1630 | ||
d62a17ae | 1631 | /* |
0a589359 | 1632 | * Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN) |
1633 | * from zebra server. The format of this message is the same as | |
1634 | * that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE (see | |
1635 | * comments for zebra_interface_add_read), except that no sockaddr_dl | |
1636 | * is sent at the tail of the message. | |
1637 | */ | |
d62a17ae | 1638 | struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1639 | { |
d62a17ae | 1640 | struct interface *ifp; |
1641 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
1642 | ||
1643 | /* Read interface name. */ | |
1644 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
1645 | ||
1646 | /* Lookup this by interface index. */ | |
bcc24579 | 1647 | ifp = if_lookup_by_name(ifname_tmp, vrf_id); |
d62a17ae | 1648 | if (ifp == NULL) { |
1649 | zlog_warn("INTERFACE_STATE: Cannot find IF %s in VRF %d", | |
1650 | ifname_tmp, vrf_id); | |
1651 | return NULL; | |
1652 | } | |
1653 | ||
1654 | zebra_interface_if_set_value(s, ifp); | |
1655 | ||
1656 | return ifp; | |
718e3744 | 1657 | } |
1658 | ||
d62a17ae | 1659 | static void link_params_set_value(struct stream *s, struct if_link_params *iflp) |
16f1b9ee OD |
1660 | { |
1661 | ||
d62a17ae | 1662 | if (iflp == NULL) |
1663 | return; | |
1664 | ||
1665 | iflp->lp_status = stream_getl(s); | |
1666 | iflp->te_metric = stream_getl(s); | |
1667 | iflp->max_bw = stream_getf(s); | |
1668 | iflp->max_rsv_bw = stream_getf(s); | |
1669 | uint32_t bwclassnum = stream_getl(s); | |
1670 | { | |
1671 | unsigned int i; | |
1672 | for (i = 0; i < bwclassnum && i < MAX_CLASS_TYPE; i++) | |
1673 | iflp->unrsv_bw[i] = stream_getf(s); | |
1674 | if (i < bwclassnum) | |
1ca3850c DS |
1675 | zlog_ferr(LIB_ERR_ZAPI_MISSMATCH, |
1676 | "%s: received %d > %d (MAX_CLASS_TYPE) bw entries" | |
1677 | " - outdated library?", | |
1678 | __func__, bwclassnum, MAX_CLASS_TYPE); | |
d62a17ae | 1679 | } |
1680 | iflp->admin_grp = stream_getl(s); | |
1681 | iflp->rmt_as = stream_getl(s); | |
1682 | iflp->rmt_ip.s_addr = stream_get_ipv4(s); | |
1683 | ||
1684 | iflp->av_delay = stream_getl(s); | |
1685 | iflp->min_delay = stream_getl(s); | |
1686 | iflp->max_delay = stream_getl(s); | |
1687 | iflp->delay_var = stream_getl(s); | |
1688 | ||
1689 | iflp->pkt_loss = stream_getf(s); | |
1690 | iflp->res_bw = stream_getf(s); | |
1691 | iflp->ava_bw = stream_getf(s); | |
1692 | iflp->use_bw = stream_getf(s); | |
16f1b9ee OD |
1693 | } |
1694 | ||
d62a17ae | 1695 | struct interface *zebra_interface_link_params_read(struct stream *s) |
16f1b9ee | 1696 | { |
d62a17ae | 1697 | struct if_link_params *iflp; |
1698 | ifindex_t ifindex; | |
c28e5b2a | 1699 | |
d62a17ae | 1700 | assert(s); |
c28e5b2a | 1701 | |
d62a17ae | 1702 | ifindex = stream_getl(s); |
16f1b9ee | 1703 | |
d62a17ae | 1704 | struct interface *ifp = if_lookup_by_index(ifindex, VRF_DEFAULT); |
16f1b9ee | 1705 | |
d62a17ae | 1706 | if (ifp == NULL) { |
1ca3850c DS |
1707 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
1708 | "%s: unknown ifindex %u, shouldn't happen", __func__, | |
1709 | ifindex); | |
d62a17ae | 1710 | return NULL; |
1711 | } | |
16f1b9ee | 1712 | |
d62a17ae | 1713 | if ((iflp = if_link_params_get(ifp)) == NULL) |
1714 | return NULL; | |
16f1b9ee | 1715 | |
d62a17ae | 1716 | link_params_set_value(s, iflp); |
16f1b9ee | 1717 | |
d62a17ae | 1718 | return ifp; |
16f1b9ee OD |
1719 | } |
1720 | ||
d62a17ae | 1721 | void zebra_interface_if_set_value(struct stream *s, struct interface *ifp) |
16f1b9ee | 1722 | { |
d7c0a89a | 1723 | uint8_t link_params_status = 0; |
98cbbaea | 1724 | ifindex_t old_ifindex; |
d62a17ae | 1725 | |
98cbbaea | 1726 | old_ifindex = ifp->ifindex; |
d62a17ae | 1727 | /* Read interface's index. */ |
ff880b78 | 1728 | if_set_index(ifp, stream_getl(s)); |
d62a17ae | 1729 | ifp->status = stream_getc(s); |
1730 | ||
1731 | /* Read interface's value. */ | |
1732 | ifp->flags = stream_getq(s); | |
1733 | ifp->ptm_enable = stream_getc(s); | |
1734 | ifp->ptm_status = stream_getc(s); | |
1735 | ifp->metric = stream_getl(s); | |
1736 | ifp->speed = stream_getl(s); | |
1737 | ifp->mtu = stream_getl(s); | |
1738 | ifp->mtu6 = stream_getl(s); | |
1739 | ifp->bandwidth = stream_getl(s); | |
1740 | ifp->ll_type = stream_getl(s); | |
1741 | ifp->hw_addr_len = stream_getl(s); | |
1742 | if (ifp->hw_addr_len) | |
1743 | stream_get(ifp->hw_addr, s, | |
1744 | MIN(ifp->hw_addr_len, INTERFACE_HWADDR_MAX)); | |
1745 | ||
1746 | /* Read Traffic Engineering status */ | |
1747 | link_params_status = stream_getc(s); | |
1748 | /* Then, Traffic Engineering parameters if any */ | |
1749 | if (link_params_status) { | |
1750 | struct if_link_params *iflp = if_link_params_get(ifp); | |
1751 | link_params_set_value(s, iflp); | |
1752 | } | |
98cbbaea DS |
1753 | |
1754 | nexthop_group_interface_state_change(ifp, old_ifindex); | |
16f1b9ee OD |
1755 | } |
1756 | ||
d62a17ae | 1757 | size_t zebra_interface_link_params_write(struct stream *s, |
1758 | struct interface *ifp) | |
16f1b9ee | 1759 | { |
d62a17ae | 1760 | size_t w; |
1761 | struct if_link_params *iflp; | |
1762 | int i; | |
16f1b9ee | 1763 | |
d62a17ae | 1764 | if (s == NULL || ifp == NULL || ifp->link_params == NULL) |
1765 | return 0; | |
16f1b9ee | 1766 | |
d62a17ae | 1767 | iflp = ifp->link_params; |
1768 | w = 0; | |
16f1b9ee | 1769 | |
d62a17ae | 1770 | w += stream_putl(s, iflp->lp_status); |
16f1b9ee | 1771 | |
d62a17ae | 1772 | w += stream_putl(s, iflp->te_metric); |
1773 | w += stream_putf(s, iflp->max_bw); | |
1774 | w += stream_putf(s, iflp->max_rsv_bw); | |
16f1b9ee | 1775 | |
d62a17ae | 1776 | w += stream_putl(s, MAX_CLASS_TYPE); |
1777 | for (i = 0; i < MAX_CLASS_TYPE; i++) | |
1778 | w += stream_putf(s, iflp->unrsv_bw[i]); | |
16f1b9ee | 1779 | |
d62a17ae | 1780 | w += stream_putl(s, iflp->admin_grp); |
1781 | w += stream_putl(s, iflp->rmt_as); | |
1782 | w += stream_put_in_addr(s, &iflp->rmt_ip); | |
16f1b9ee | 1783 | |
d62a17ae | 1784 | w += stream_putl(s, iflp->av_delay); |
1785 | w += stream_putl(s, iflp->min_delay); | |
1786 | w += stream_putl(s, iflp->max_delay); | |
1787 | w += stream_putl(s, iflp->delay_var); | |
16f1b9ee | 1788 | |
d62a17ae | 1789 | w += stream_putf(s, iflp->pkt_loss); |
1790 | w += stream_putf(s, iflp->res_bw); | |
1791 | w += stream_putf(s, iflp->ava_bw); | |
1792 | w += stream_putf(s, iflp->use_bw); | |
16f1b9ee | 1793 | |
d62a17ae | 1794 | return w; |
16f1b9ee OD |
1795 | } |
1796 | ||
1797 | /* | |
0a589359 | 1798 | * format of message for address additon is: |
1799 | * 0 | |
1800 | * 0 1 2 3 4 5 6 7 | |
1801 | * +-+-+-+-+-+-+-+-+ | |
1802 | * | type | ZEBRA_INTERFACE_ADDRESS_ADD or | |
1803 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_ADDRES_DELETE | |
1804 | * | | | |
1805 | * + + | |
1806 | * | ifindex | | |
1807 | * + + | |
1808 | * | | | |
1809 | * + + | |
1810 | * | | | |
1811 | * +-+-+-+-+-+-+-+-+ | |
1812 | * | ifc_flags | flags for connected address | |
1813 | * +-+-+-+-+-+-+-+-+ | |
1814 | * | addr_family | | |
1815 | * +-+-+-+-+-+-+-+-+ | |
1816 | * | addr... | | |
1817 | * : : | |
1818 | * | | | |
1819 | * +-+-+-+-+-+-+-+-+ | |
1820 | * | addr_len | len of addr. E.g., addr_len = 4 for ipv4 addrs. | |
1821 | * +-+-+-+-+-+-+-+-+ | |
1822 | * | daddr.. | | |
1823 | * : : | |
1824 | * | | | |
1825 | * +-+-+-+-+-+-+-+-+ | |
0a589359 | 1826 | */ |
1827 | ||
d62a17ae | 1828 | static int memconstant(const void *s, int c, size_t n) |
3fb9cd6e | 1829 | { |
d7c0a89a | 1830 | const uint8_t *p = s; |
3fb9cd6e | 1831 | |
d62a17ae | 1832 | while (n-- > 0) |
1833 | if (*p++ != c) | |
1834 | return 0; | |
1835 | return 1; | |
3fb9cd6e | 1836 | } |
1837 | ||
d5a5c8f0 | 1838 | |
d62a17ae | 1839 | struct connected *zebra_interface_address_read(int type, struct stream *s, |
1840 | vrf_id_t vrf_id) | |
718e3744 | 1841 | { |
d62a17ae | 1842 | ifindex_t ifindex; |
1843 | struct interface *ifp; | |
1844 | struct connected *ifc; | |
1845 | struct prefix p, d, *dp; | |
1846 | int plen; | |
d7c0a89a | 1847 | uint8_t ifc_flags; |
d62a17ae | 1848 | |
1849 | memset(&p, 0, sizeof(p)); | |
1850 | memset(&d, 0, sizeof(d)); | |
1851 | ||
1852 | /* Get interface index. */ | |
1853 | ifindex = stream_getl(s); | |
1854 | ||
1855 | /* Lookup index. */ | |
1856 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1857 | if (ifp == NULL) { | |
1858 | zlog_warn("INTERFACE_ADDRESS_%s: Cannot find IF %u in VRF %d", | |
1859 | (type == ZEBRA_INTERFACE_ADDRESS_ADD) ? "ADD" : "DEL", | |
1860 | ifindex, vrf_id); | |
1861 | return NULL; | |
1862 | } | |
1863 | ||
1864 | /* Fetch flag. */ | |
1865 | ifc_flags = stream_getc(s); | |
1866 | ||
1867 | /* Fetch interface address. */ | |
1868 | d.family = p.family = stream_getc(s); | |
1869 | plen = prefix_blen(&d); | |
1870 | ||
1871 | zclient_stream_get_prefix(s, &p); | |
1872 | ||
1873 | /* Fetch destination address. */ | |
1874 | stream_get(&d.u.prefix, s, plen); | |
1875 | ||
1876 | /* N.B. NULL destination pointers are encoded as all zeroes */ | |
1877 | dp = memconstant(&d.u.prefix, 0, plen) ? NULL : &d; | |
1878 | ||
1879 | if (type == ZEBRA_INTERFACE_ADDRESS_ADD) { | |
1880 | ifc = connected_lookup_prefix_exact(ifp, &p); | |
1881 | if (!ifc) { | |
1882 | /* N.B. NULL destination pointers are encoded as all | |
1883 | * zeroes */ | |
1884 | ifc = connected_add_by_prefix(ifp, &p, dp); | |
1885 | } | |
1886 | if (ifc) { | |
1887 | ifc->flags = ifc_flags; | |
1888 | if (ifc->destination) | |
1889 | ifc->destination->prefixlen = | |
1890 | ifc->address->prefixlen; | |
1891 | else if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { | |
1892 | /* carp interfaces on OpenBSD with 0.0.0.0/0 as | |
1893 | * "peer" */ | |
1894 | char buf[PREFIX_STRLEN]; | |
1895 | zlog_warn( | |
1896 | "warning: interface %s address %s " | |
1897 | "with peer flag set, but no peer address!", | |
0313523d FR |
1898 | ifp->name, |
1899 | prefix2str(ifc->address, buf, | |
1900 | sizeof buf)); | |
d62a17ae | 1901 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); |
1902 | } | |
1903 | } | |
1904 | } else { | |
1905 | assert(type == ZEBRA_INTERFACE_ADDRESS_DELETE); | |
1906 | ifc = connected_delete_by_prefix(ifp, &p); | |
1907 | } | |
1908 | ||
1909 | return ifc; | |
718e3744 | 1910 | } |
0a589359 | 1911 | |
a80beece DS |
1912 | /* |
1913 | * format of message for neighbor connected address is: | |
1914 | * 0 | |
1915 | * 0 1 2 3 4 5 6 7 | |
1916 | * +-+-+-+-+-+-+-+-+ | |
1917 | * | type | ZEBRA_INTERFACE_NBR_ADDRESS_ADD or | |
1918 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_NBR_ADDRES_DELETE | |
1919 | * | | | |
1920 | * + + | |
1921 | * | ifindex | | |
1922 | * + + | |
1923 | * | | | |
1924 | * + + | |
1925 | * | | | |
1926 | * +-+-+-+-+-+-+-+-+ | |
1927 | * | addr_family | | |
1928 | * +-+-+-+-+-+-+-+-+ | |
1929 | * | addr... | | |
1930 | * : : | |
1931 | * | | | |
1932 | * +-+-+-+-+-+-+-+-+ | |
1933 | * | addr_len | len of addr. | |
1934 | * +-+-+-+-+-+-+-+-+ | |
1935 | */ | |
1936 | struct nbr_connected * | |
d62a17ae | 1937 | zebra_interface_nbr_address_read(int type, struct stream *s, vrf_id_t vrf_id) |
a80beece | 1938 | { |
d62a17ae | 1939 | unsigned int ifindex; |
1940 | struct interface *ifp; | |
1941 | struct prefix p; | |
1942 | struct nbr_connected *ifc; | |
1943 | ||
1944 | /* Get interface index. */ | |
1945 | ifindex = stream_getl(s); | |
1946 | ||
1947 | /* Lookup index. */ | |
1948 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1949 | if (ifp == NULL) { | |
1950 | zlog_warn("INTERFACE_NBR_%s: Cannot find IF %u in VRF %d", | |
1951 | (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) ? "ADD" | |
1952 | : "DELETE", | |
1953 | ifindex, vrf_id); | |
1954 | return NULL; | |
1955 | } | |
1956 | ||
1957 | p.family = stream_getc(s); | |
1958 | stream_get(&p.u.prefix, s, prefix_blen(&p)); | |
1959 | p.prefixlen = stream_getc(s); | |
1960 | ||
1961 | if (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) { | |
1962 | /* Currently only supporting P2P links, so any new RA source | |
1963 | address is | |
1964 | considered as the replacement of the previously learnt | |
1965 | Link-Local address. */ | |
1966 | if (!(ifc = listnode_head(ifp->nbr_connected))) { | |
1967 | ifc = nbr_connected_new(); | |
1968 | ifc->address = prefix_new(); | |
1969 | ifc->ifp = ifp; | |
1970 | listnode_add(ifp->nbr_connected, ifc); | |
1971 | } | |
1972 | ||
1973 | prefix_copy(ifc->address, &p); | |
1974 | } else { | |
1975 | assert(type == ZEBRA_INTERFACE_NBR_ADDRESS_DELETE); | |
1976 | ||
1977 | ifc = nbr_connected_check(ifp, &p); | |
1978 | if (ifc) | |
1979 | listnode_delete(ifp->nbr_connected, ifc); | |
1980 | } | |
1981 | ||
1982 | return ifc; | |
a80beece | 1983 | } |
6b0655a2 | 1984 | |
d62a17ae | 1985 | struct interface *zebra_interface_vrf_update_read(struct stream *s, |
1986 | vrf_id_t vrf_id, | |
1987 | vrf_id_t *new_vrf_id) | |
c8e264b6 | 1988 | { |
d62a17ae | 1989 | unsigned int ifindex; |
1990 | struct interface *ifp; | |
a9ff90c4 | 1991 | vrf_id_t new_id; |
d62a17ae | 1992 | |
1993 | /* Get interface index. */ | |
1994 | ifindex = stream_getl(s); | |
1995 | ||
1996 | /* Lookup interface. */ | |
1997 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1998 | if (ifp == NULL) { | |
1999 | zlog_warn("INTERFACE_VRF_UPDATE: Cannot find IF %u in VRF %d", | |
2000 | ifindex, vrf_id); | |
2001 | return NULL; | |
2002 | } | |
2003 | ||
2004 | /* Fetch new VRF Id. */ | |
2005 | new_id = stream_getw(s); | |
2006 | ||
2007 | *new_vrf_id = new_id; | |
2008 | return ifp; | |
c8e264b6 | 2009 | } |
5c7ef8dc | 2010 | |
2011 | /* filter unwanted messages until the expected one arrives */ | |
d62a17ae | 2012 | static int zclient_read_sync_response(struct zclient *zclient, |
d7c0a89a | 2013 | uint16_t expected_cmd) |
5c7ef8dc | 2014 | { |
d62a17ae | 2015 | struct stream *s; |
d7c0a89a QY |
2016 | uint16_t size = -1; |
2017 | uint8_t marker; | |
2018 | uint8_t version; | |
d62a17ae | 2019 | vrf_id_t vrf_id; |
d7c0a89a | 2020 | uint16_t cmd; |
d62a17ae | 2021 | fd_set readfds; |
2022 | int ret; | |
2023 | ||
2024 | ret = 0; | |
2025 | cmd = expected_cmd + 1; | |
2026 | while (ret == 0 && cmd != expected_cmd) { | |
2027 | s = zclient->ibuf; | |
2028 | stream_reset(s); | |
2029 | ||
2030 | /* wait until response arrives */ | |
2031 | FD_ZERO(&readfds); | |
2032 | FD_SET(zclient->sock, &readfds); | |
2033 | select(zclient->sock + 1, &readfds, NULL, NULL, NULL); | |
2034 | if (!FD_ISSET(zclient->sock, &readfds)) | |
2035 | continue; | |
2036 | /* read response */ | |
2037 | ret = zclient_read_header(s, zclient->sock, &size, &marker, | |
2038 | &version, &vrf_id, &cmd); | |
2039 | if (zclient_debug) | |
2040 | zlog_debug("%s: Response (%d bytes) received", __func__, | |
2041 | size); | |
2042 | } | |
2043 | if (ret != 0) { | |
1ca3850c DS |
2044 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
2045 | "%s: Invalid Sync Message Reply", __func__); | |
d62a17ae | 2046 | return -1; |
2047 | } | |
2048 | ||
2049 | return 0; | |
5c7ef8dc | 2050 | } |
fea12efb | 2051 | /** |
2052 | * Connect to label manager in a syncronous way | |
2053 | * | |
2054 | * It first writes the request to zcient output buffer and then | |
2055 | * immediately reads the answer from the input buffer. | |
2056 | * | |
2057 | * @param zclient Zclient used to connect to label manager (zebra) | |
2058 | * @result Result of response | |
2059 | */ | |
d62a17ae | 2060 | int lm_label_manager_connect(struct zclient *zclient) |
fea12efb | 2061 | { |
d62a17ae | 2062 | int ret; |
2063 | struct stream *s; | |
d7c0a89a | 2064 | uint8_t result; |
d62a17ae | 2065 | |
2066 | if (zclient_debug) | |
35cbe02a | 2067 | zlog_debug("Connecting to Label Manager (LM)"); |
d62a17ae | 2068 | |
2069 | if (zclient->sock < 0) | |
2070 | return -1; | |
2071 | ||
2072 | /* send request */ | |
2073 | s = zclient->obuf; | |
2074 | stream_reset(s); | |
2075 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, VRF_DEFAULT); | |
2076 | ||
2077 | /* proto */ | |
2078 | stream_putc(s, zclient->redist_default); | |
2079 | /* instance */ | |
2080 | stream_putw(s, zclient->instance); | |
2081 | ||
2082 | /* Put length at the first point of the stream. */ | |
2083 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2084 | ||
2085 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2086 | if (ret < 0) { | |
1ca3850c | 2087 | zlog_ferr(LIB_ERR_ZAPI_SOCKET, "Can't write to zclient sock"); |
d62a17ae | 2088 | close(zclient->sock); |
2089 | zclient->sock = -1; | |
2090 | return -1; | |
2091 | } | |
2092 | if (ret == 0) { | |
1ca3850c | 2093 | zlog_ferr(LIB_ERR_ZAPI_SOCKET, "Zclient sock closed"); |
d62a17ae | 2094 | close(zclient->sock); |
2095 | zclient->sock = -1; | |
2096 | return -1; | |
2097 | } | |
2098 | if (zclient_debug) | |
35cbe02a | 2099 | zlog_debug("LM connect request sent (%d bytes)", ret); |
d62a17ae | 2100 | |
2101 | /* read response */ | |
2102 | if (zclient_read_sync_response(zclient, ZEBRA_LABEL_MANAGER_CONNECT) | |
2103 | != 0) | |
2104 | return -1; | |
2105 | ||
d62a17ae | 2106 | s = zclient->ibuf; |
5dffb0e9 FR |
2107 | |
2108 | /* read instance and proto */ | |
2109 | uint8_t proto = stream_getc(s); | |
2110 | uint16_t instance = stream_getw(s); | |
2111 | ||
2112 | /* sanity */ | |
2113 | if (proto != zclient->redist_default) | |
1ca3850c DS |
2114 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
2115 | "Wrong proto (%u) in LM connect response. Should be %u", | |
2116 | proto, zclient->redist_default); | |
5dffb0e9 | 2117 | if (instance != zclient->instance) |
1ca3850c DS |
2118 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
2119 | "Wrong instId (%u) in LM connect response. Should be %u", | |
2120 | instance, zclient->instance); | |
5dffb0e9 FR |
2121 | |
2122 | /* result code */ | |
d62a17ae | 2123 | result = stream_getc(s); |
2124 | if (zclient_debug) | |
0313523d | 2125 | zlog_debug("LM connect-response received, result %u", result); |
d62a17ae | 2126 | |
2127 | return (int)result; | |
fea12efb | 2128 | } |
2129 | ||
955bfd98 PZ |
2130 | /* |
2131 | * Asynchronous label chunk request | |
2132 | * | |
2133 | * @param zclient Zclient used to connect to label manager (zebra) | |
2134 | * @param keep Avoid garbage collection | |
2135 | * @param chunk_size Amount of labels requested | |
2136 | * @result 0 on success, -1 otherwise | |
2137 | */ | |
0313523d FR |
2138 | int zclient_send_get_label_chunk(struct zclient *zclient, uint8_t keep, |
2139 | uint32_t chunk_size) | |
955bfd98 PZ |
2140 | { |
2141 | struct stream *s; | |
2142 | ||
2143 | if (zclient_debug) | |
2144 | zlog_debug("Getting Label Chunk"); | |
2145 | ||
2146 | if (zclient->sock < 0) | |
2147 | return -1; | |
2148 | ||
2149 | s = zclient->obuf; | |
2150 | stream_reset(s); | |
2151 | ||
2152 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
5dffb0e9 FR |
2153 | /* proto */ |
2154 | stream_putc(s, zclient->redist_default); | |
2155 | /* instance */ | |
2156 | stream_putw(s, zclient->instance); | |
955bfd98 PZ |
2157 | stream_putc(s, keep); |
2158 | stream_putl(s, chunk_size); | |
2159 | ||
2160 | /* Put length at the first point of the stream. */ | |
2161 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2162 | ||
2163 | return zclient_send_message(zclient); | |
2164 | } | |
2165 | ||
fea12efb | 2166 | /** |
2167 | * Function to request a label chunk in a syncronous way | |
2168 | * | |
2169 | * It first writes the request to zlcient output buffer and then | |
2170 | * immediately reads the answer from the input buffer. | |
2171 | * | |
2172 | * @param zclient Zclient used to connect to label manager (zebra) | |
2173 | * @param keep Avoid garbage collection | |
2174 | * @param chunk_size Amount of labels requested | |
2175 | * @param start To write first assigned chunk label to | |
2176 | * @param end To write last assigned chunk label to | |
2177 | * @result 0 on success, -1 otherwise | |
2178 | */ | |
d7c0a89a | 2179 | int lm_get_label_chunk(struct zclient *zclient, uint8_t keep, |
d62a17ae | 2180 | uint32_t chunk_size, uint32_t *start, uint32_t *end) |
fea12efb | 2181 | { |
d62a17ae | 2182 | int ret; |
2183 | struct stream *s; | |
d7c0a89a | 2184 | uint8_t response_keep; |
d62a17ae | 2185 | |
2186 | if (zclient_debug) | |
2187 | zlog_debug("Getting Label Chunk"); | |
2188 | ||
2189 | if (zclient->sock < 0) | |
2190 | return -1; | |
2191 | ||
2192 | /* send request */ | |
2193 | s = zclient->obuf; | |
2194 | stream_reset(s); | |
2195 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
5dffb0e9 FR |
2196 | /* proto */ |
2197 | stream_putc(s, zclient->redist_default); | |
2198 | /* instance */ | |
2199 | stream_putw(s, zclient->instance); | |
d62a17ae | 2200 | /* keep */ |
2201 | stream_putc(s, keep); | |
2202 | /* chunk size */ | |
2203 | stream_putl(s, chunk_size); | |
2204 | /* Put length at the first point of the stream. */ | |
2205 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2206 | ||
2207 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2208 | if (ret < 0) { | |
1ca3850c DS |
2209 | zlog_ferr(LIB_ERR_ZAPI_SOCKET, |
2210 | "Can't write to zclient sock"); | |
d62a17ae | 2211 | close(zclient->sock); |
2212 | zclient->sock = -1; | |
2213 | return -1; | |
2214 | } | |
2215 | if (ret == 0) { | |
1ca3850c DS |
2216 | zlog_ferr(LIB_ERR_ZAPI_SOCKET, |
2217 | "Zclient sock closed"); | |
d62a17ae | 2218 | close(zclient->sock); |
2219 | zclient->sock = -1; | |
2220 | return -1; | |
2221 | } | |
2222 | if (zclient_debug) | |
35cbe02a | 2223 | zlog_debug("Label chunk request (%d bytes) sent", ret); |
d62a17ae | 2224 | |
2225 | /* read response */ | |
2226 | if (zclient_read_sync_response(zclient, ZEBRA_GET_LABEL_CHUNK) != 0) | |
2227 | return -1; | |
2228 | ||
5dffb0e9 | 2229 | /* parse response */ |
d62a17ae | 2230 | s = zclient->ibuf; |
5dffb0e9 FR |
2231 | |
2232 | /* read proto and instance */ | |
2233 | uint8_t proto = stream_getc(s); | |
2234 | uint16_t instance = stream_getw(s); | |
2235 | ||
2236 | /* sanities */ | |
2237 | if (proto != zclient->redist_default) | |
1ca3850c DS |
2238 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
2239 | "Wrong proto (%u) in get chunk response. Should be %u", | |
2240 | proto, zclient->redist_default); | |
5dffb0e9 | 2241 | if (instance != zclient->instance) |
1ca3850c DS |
2242 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
2243 | "Wrong instId (%u) in get chunk response Should be %u", | |
2244 | instance, zclient->instance); | |
5dffb0e9 | 2245 | |
d62a17ae | 2246 | /* keep */ |
2247 | response_keep = stream_getc(s); | |
2248 | /* start and end labels */ | |
2249 | *start = stream_getl(s); | |
2250 | *end = stream_getl(s); | |
2251 | ||
2252 | /* not owning this response */ | |
2253 | if (keep != response_keep) { | |
1ca3850c DS |
2254 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
2255 | "Invalid Label chunk: %u - %u, keeps mismatch %u != %u", | |
2256 | *start, *end, keep, response_keep); | |
d62a17ae | 2257 | } |
2258 | /* sanity */ | |
70e98a7f DS |
2259 | if (*start > *end || *start < MPLS_LABEL_UNRESERVED_MIN |
2260 | || *end > MPLS_LABEL_UNRESERVED_MAX) { | |
1ca3850c DS |
2261 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
2262 | "Invalid Label chunk: %u - %u", *start, *end); | |
d62a17ae | 2263 | return -1; |
2264 | } | |
2265 | ||
2266 | if (zclient_debug) | |
35cbe02a | 2267 | zlog_debug("Label Chunk assign: %u - %u (%u)", *start, *end, |
d62a17ae | 2268 | response_keep); |
2269 | ||
2270 | return 0; | |
fea12efb | 2271 | } |
2272 | ||
2273 | /** | |
2274 | * Function to release a label chunk | |
2275 | * | |
2276 | * @param zclient Zclient used to connect to label manager (zebra) | |
2277 | * @param start First label of chunk | |
2278 | * @param end Last label of chunk | |
2279 | * @result 0 on success, -1 otherwise | |
2280 | */ | |
d62a17ae | 2281 | int lm_release_label_chunk(struct zclient *zclient, uint32_t start, |
2282 | uint32_t end) | |
fea12efb | 2283 | { |
d62a17ae | 2284 | int ret; |
2285 | struct stream *s; | |
2286 | ||
2287 | if (zclient_debug) | |
35cbe02a | 2288 | zlog_debug("Releasing Label Chunk %u - %u", start, end); |
d62a17ae | 2289 | |
2290 | if (zclient->sock < 0) | |
2291 | return -1; | |
2292 | ||
2293 | /* send request */ | |
2294 | s = zclient->obuf; | |
2295 | stream_reset(s); | |
2296 | zclient_create_header(s, ZEBRA_RELEASE_LABEL_CHUNK, VRF_DEFAULT); | |
2297 | ||
5dffb0e9 FR |
2298 | /* proto */ |
2299 | stream_putc(s, zclient->redist_default); | |
2300 | /* instance */ | |
2301 | stream_putw(s, zclient->instance); | |
d62a17ae | 2302 | /* start */ |
2303 | stream_putl(s, start); | |
2304 | /* end */ | |
2305 | stream_putl(s, end); | |
2306 | ||
2307 | /* Put length at the first point of the stream. */ | |
2308 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2309 | ||
2310 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2311 | if (ret < 0) { | |
1ca3850c | 2312 | zlog_ferr(LIB_ERR_ZAPI_SOCKET, "Can't write to zclient sock"); |
d62a17ae | 2313 | close(zclient->sock); |
2314 | zclient->sock = -1; | |
2315 | return -1; | |
2316 | } | |
2317 | if (ret == 0) { | |
1ca3850c DS |
2318 | zlog_ferr(LIB_ERR_ZAPI_SOCKET, |
2319 | "Zclient sock connection closed"); | |
d62a17ae | 2320 | close(zclient->sock); |
2321 | zclient->sock = -1; | |
2322 | return -1; | |
2323 | } | |
2324 | ||
2325 | return 0; | |
fea12efb | 2326 | } |
c8e264b6 | 2327 | |
75fb51c1 PG |
2328 | /** |
2329 | * Connect to table manager in a syncronous way | |
2330 | * | |
2331 | * It first writes the request to zcient output buffer and then | |
2332 | * immediately reads the answer from the input buffer. | |
2333 | * | |
2334 | * @param zclient Zclient used to connect to table manager (zebra) | |
2335 | * @result Result of response | |
2336 | */ | |
2337 | int tm_table_manager_connect(struct zclient *zclient) | |
2338 | { | |
2339 | int ret; | |
2340 | struct stream *s; | |
2341 | uint8_t result; | |
2342 | ||
2343 | if (zclient_debug) | |
2344 | zlog_debug("Connecting to Table Manager"); | |
2345 | ||
2346 | if (zclient->sock < 0) | |
2347 | return -1; | |
2348 | ||
2349 | /* send request */ | |
2350 | s = zclient->obuf; | |
2351 | stream_reset(s); | |
2352 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, VRF_DEFAULT); | |
2353 | ||
2354 | /* proto */ | |
2355 | stream_putc(s, zclient->redist_default); | |
2356 | /* instance */ | |
2357 | stream_putw(s, zclient->instance); | |
2358 | ||
2359 | /* Put length at the first point of the stream. */ | |
2360 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2361 | ||
2362 | ret = zclient_send_message(zclient); | |
2363 | if (ret < 0) | |
2364 | return -1; | |
2365 | ||
2366 | if (zclient_debug) | |
0313523d | 2367 | zlog_debug("%s: Table manager connect request sent", __func__); |
75fb51c1 PG |
2368 | |
2369 | /* read response */ | |
2370 | if (zclient_read_sync_response(zclient, ZEBRA_TABLE_MANAGER_CONNECT) | |
2371 | != 0) | |
2372 | return -1; | |
2373 | ||
2374 | /* result */ | |
2375 | s = zclient->ibuf; | |
2376 | STREAM_GETC(s, result); | |
2377 | if (zclient_debug) | |
2378 | zlog_debug( | |
2379 | "%s: Table Manager connect response received, result %u", | |
2380 | __func__, result); | |
2381 | ||
2382 | return (int)result; | |
2383 | stream_failure: | |
2384 | return 0; | |
2385 | } | |
2386 | ||
2387 | /** | |
2388 | * Function to request a table chunk in a syncronous way | |
2389 | * | |
2390 | * It first writes the request to zclient output buffer and then | |
2391 | * immediately reads the answer from the input buffer. | |
2392 | * | |
2393 | * @param zclient Zclient used to connect to table manager (zebra) | |
2394 | * @param chunk_size Amount of table requested | |
2395 | * @param start to write first assigned chunk table RT ID to | |
2396 | * @param end To write last assigned chunk table RT ID to | |
2397 | * @result 0 on success, -1 otherwise | |
2398 | */ | |
2399 | int tm_get_table_chunk(struct zclient *zclient, uint32_t chunk_size, | |
2400 | uint32_t *start, uint32_t *end) | |
2401 | { | |
2402 | int ret; | |
2403 | struct stream *s; | |
2404 | ||
2405 | if (zclient_debug) | |
2406 | zlog_debug("Getting Table Chunk"); | |
2407 | ||
2408 | if (zclient->sock < 0) | |
2409 | return -1; | |
2410 | ||
2411 | /* send request */ | |
2412 | s = zclient->obuf; | |
2413 | stream_reset(s); | |
2414 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, VRF_DEFAULT); | |
2415 | /* chunk size */ | |
2416 | stream_putl(s, chunk_size); | |
2417 | /* Put length at the first point of the stream. */ | |
2418 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2419 | ||
2420 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2421 | if (ret < 0) { | |
1ca3850c DS |
2422 | zlog_ferr(LIB_ERR_ZAPI_SOCKET, |
2423 | "%s: can't write to zclient->sock", __func__); | |
75fb51c1 PG |
2424 | close(zclient->sock); |
2425 | zclient->sock = -1; | |
2426 | return -1; | |
2427 | } | |
2428 | if (ret == 0) { | |
1ca3850c DS |
2429 | zlog_ferr(LIB_ERR_ZAPI_SOCKET, |
2430 | "%s: zclient->sock connection closed", __func__); | |
75fb51c1 PG |
2431 | close(zclient->sock); |
2432 | zclient->sock = -1; | |
2433 | return -1; | |
2434 | } | |
2435 | if (zclient_debug) | |
2436 | zlog_debug("%s: Table chunk request (%d bytes) sent", __func__, | |
2437 | ret); | |
2438 | ||
2439 | /* read response */ | |
2440 | if (zclient_read_sync_response(zclient, ZEBRA_GET_TABLE_CHUNK) != 0) | |
2441 | return -1; | |
2442 | ||
2443 | s = zclient->ibuf; | |
2444 | /* start and end table IDs */ | |
2445 | STREAM_GETL(s, *start); | |
2446 | STREAM_GETL(s, *end); | |
2447 | ||
2448 | if (zclient_debug) | |
2449 | zlog_debug("Table Chunk assign: %u - %u ", *start, *end); | |
2450 | ||
2451 | stream_failure: | |
2452 | return 0; | |
2453 | } | |
2454 | ||
2455 | /** | |
2456 | * Function to release a table chunk | |
2457 | * | |
2458 | * @param zclient Zclient used to connect to table manager (zebra) | |
2459 | * @param start First label of table | |
2460 | * @param end Last label of chunk | |
2461 | * @result 0 on success, -1 otherwise | |
2462 | */ | |
2463 | int tm_release_table_chunk(struct zclient *zclient, uint32_t start, | |
2464 | uint32_t end) | |
2465 | { | |
2466 | struct stream *s; | |
2467 | ||
2468 | if (zclient_debug) | |
2469 | zlog_debug("Releasing Table Chunk"); | |
2470 | ||
2471 | if (zclient->sock < 0) | |
2472 | return -1; | |
2473 | ||
2474 | /* send request */ | |
2475 | s = zclient->obuf; | |
2476 | stream_reset(s); | |
2477 | zclient_create_header(s, ZEBRA_RELEASE_TABLE_CHUNK, VRF_DEFAULT); | |
2478 | ||
2479 | /* start */ | |
2480 | stream_putl(s, start); | |
2481 | /* end */ | |
2482 | stream_putl(s, end); | |
2483 | ||
2484 | /* Put length at the first point of the stream. */ | |
2485 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2486 | ||
2487 | return zclient_send_message(zclient); | |
2488 | } | |
2489 | ||
2490 | ||
6833ae01 | 2491 | int zebra_send_pw(struct zclient *zclient, int command, struct zapi_pw *pw) |
2492 | { | |
2493 | struct stream *s; | |
2494 | ||
2495 | /* Reset stream. */ | |
2496 | s = zclient->obuf; | |
2497 | stream_reset(s); | |
2498 | ||
2499 | zclient_create_header(s, command, VRF_DEFAULT); | |
2500 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
2501 | stream_putl(s, pw->ifindex); | |
2502 | ||
2503 | /* Put type */ | |
2504 | stream_putl(s, pw->type); | |
2505 | ||
2506 | /* Put nexthop */ | |
2507 | stream_putl(s, pw->af); | |
2508 | switch (pw->af) { | |
2509 | case AF_INET: | |
2510 | stream_put_in_addr(s, &pw->nexthop.ipv4); | |
2511 | break; | |
2512 | case AF_INET6: | |
d7c0a89a | 2513 | stream_write(s, (uint8_t *)&pw->nexthop.ipv6, 16); |
6833ae01 | 2514 | break; |
2515 | default: | |
1ca3850c DS |
2516 | zlog_ferr(LIB_ERR_ZAPI_ENCODE, |
2517 | "%s: unknown af", __func__); | |
6833ae01 | 2518 | return -1; |
2519 | } | |
2520 | ||
2521 | /* Put labels */ | |
2522 | stream_putl(s, pw->local_label); | |
2523 | stream_putl(s, pw->remote_label); | |
2524 | ||
2525 | /* Put flags */ | |
2526 | stream_putc(s, pw->flags); | |
2527 | ||
2528 | /* Protocol specific fields */ | |
2529 | stream_write(s, &pw->data, sizeof(union pw_protocol_fields)); | |
2530 | ||
2531 | /* Put length at the first point of the stream. */ | |
2532 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2533 | ||
2534 | return zclient_send_message(zclient); | |
2535 | } | |
2536 | ||
2537 | /* | |
2538 | * Receive PW status update from Zebra and send it to LDE process. | |
2539 | */ | |
2540 | void zebra_read_pw_status_update(int command, struct zclient *zclient, | |
2541 | zebra_size_t length, vrf_id_t vrf_id, | |
2542 | struct zapi_pw_status *pw) | |
2543 | { | |
2544 | struct stream *s; | |
2545 | ||
2546 | memset(pw, 0, sizeof(struct zapi_pw_status)); | |
2547 | s = zclient->ibuf; | |
2548 | ||
2549 | /* Get data. */ | |
2550 | stream_get(pw->ifname, s, IF_NAMESIZE); | |
2551 | pw->ifindex = stream_getl(s); | |
2552 | pw->status = stream_getl(s); | |
2553 | } | |
2554 | ||
09924cff DS |
2555 | static void zclient_capability_decode(int command, struct zclient *zclient, |
2556 | zebra_size_t length, vrf_id_t vrf_id) | |
2557 | { | |
2558 | struct zclient_capabilities cap; | |
2559 | struct stream *s = zclient->ibuf; | |
2560 | uint8_t mpls_enabled; | |
2561 | ||
2562 | memset(&cap, 0, sizeof(cap)); | |
2563 | STREAM_GETC(s, mpls_enabled); | |
2564 | cap.mpls_enabled = !!mpls_enabled; | |
2565 | STREAM_GETL(s, cap.ecmp); | |
2566 | ||
2567 | if (zclient->zebra_capabilities) | |
2568 | (*zclient->zebra_capabilities)(&cap); | |
2569 | ||
2570 | stream_failure: | |
2571 | return; | |
2572 | } | |
2573 | ||
718e3744 | 2574 | /* Zebra client message read function. */ |
d62a17ae | 2575 | static int zclient_read(struct thread *thread) |
718e3744 | 2576 | { |
d62a17ae | 2577 | size_t already; |
2578 | uint16_t length, command; | |
2579 | uint8_t marker, version; | |
2580 | vrf_id_t vrf_id; | |
2581 | struct zclient *zclient; | |
2582 | ||
2583 | /* Get socket to zebra. */ | |
2584 | zclient = THREAD_ARG(thread); | |
2585 | zclient->t_read = NULL; | |
2586 | ||
2587 | /* Read zebra header (if we don't have it already). */ | |
2588 | if ((already = stream_get_endp(zclient->ibuf)) < ZEBRA_HEADER_SIZE) { | |
2589 | ssize_t nbyte; | |
2590 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2591 | ZEBRA_HEADER_SIZE - already)) | |
2592 | == 0) | |
2593 | || (nbyte == -1)) { | |
2594 | if (zclient_debug) | |
2595 | zlog_debug( | |
2596 | "zclient connection closed socket [%d].", | |
2597 | zclient->sock); | |
2598 | return zclient_failed(zclient); | |
2599 | } | |
2600 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
2601 | /* Try again later. */ | |
2602 | zclient_event(ZCLIENT_READ, zclient); | |
2603 | return 0; | |
2604 | } | |
2605 | already = ZEBRA_HEADER_SIZE; | |
634f9ea2 | 2606 | } |
d62a17ae | 2607 | |
2608 | /* Reset to read from the beginning of the incoming packet. */ | |
2609 | stream_set_getp(zclient->ibuf, 0); | |
2610 | ||
2611 | /* Fetch header values. */ | |
2612 | length = stream_getw(zclient->ibuf); | |
2613 | marker = stream_getc(zclient->ibuf); | |
2614 | version = stream_getc(zclient->ibuf); | |
a9ff90c4 | 2615 | vrf_id = stream_getl(zclient->ibuf); |
d62a17ae | 2616 | command = stream_getw(zclient->ibuf); |
2617 | ||
2618 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
1ca3850c DS |
2619 | zlog_ferr(LIB_ERR_ZAPI_MISSMATCH, |
2620 | "%s: socket %d version mismatch, marker %d, version %d", | |
2621 | __func__, zclient->sock, marker, version); | |
d62a17ae | 2622 | return zclient_failed(zclient); |
634f9ea2 | 2623 | } |
d62a17ae | 2624 | |
2625 | if (length < ZEBRA_HEADER_SIZE) { | |
1ca3850c DS |
2626 | zlog_ferr(LIB_ERR_ZAPI_MISSMATCH, |
2627 | "%s: socket %d message length %u is less than %d ", | |
2628 | __func__, zclient->sock, length, ZEBRA_HEADER_SIZE); | |
d62a17ae | 2629 | return zclient_failed(zclient); |
634f9ea2 | 2630 | } |
d62a17ae | 2631 | |
2632 | /* Length check. */ | |
2633 | if (length > STREAM_SIZE(zclient->ibuf)) { | |
2634 | struct stream *ns; | |
2635 | zlog_warn( | |
2636 | "%s: message size %u exceeds buffer size %lu, expanding...", | |
d7c0a89a QY |
2637 | __func__, length, |
2638 | (unsigned long)STREAM_SIZE(zclient->ibuf)); | |
d62a17ae | 2639 | ns = stream_new(length); |
2640 | stream_copy(ns, zclient->ibuf); | |
2641 | stream_free(zclient->ibuf); | |
2642 | zclient->ibuf = ns; | |
2643 | } | |
2644 | ||
2645 | /* Read rest of zebra packet. */ | |
2646 | if (already < length) { | |
2647 | ssize_t nbyte; | |
2648 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2649 | length - already)) | |
2650 | == 0) | |
2651 | || (nbyte == -1)) { | |
2652 | if (zclient_debug) | |
2653 | zlog_debug( | |
2654 | "zclient connection closed socket [%d].", | |
2655 | zclient->sock); | |
2656 | return zclient_failed(zclient); | |
2657 | } | |
2658 | if (nbyte != (ssize_t)(length - already)) { | |
2659 | /* Try again later. */ | |
2660 | zclient_event(ZCLIENT_READ, zclient); | |
2661 | return 0; | |
2662 | } | |
2663 | } | |
2664 | ||
2665 | length -= ZEBRA_HEADER_SIZE; | |
2666 | ||
2667 | if (zclient_debug) | |
2668 | zlog_debug("zclient 0x%p command 0x%x VRF %u\n", | |
2669 | (void *)zclient, command, vrf_id); | |
2670 | ||
2671 | switch (command) { | |
09924cff DS |
2672 | case ZEBRA_CAPABILITIES: |
2673 | zclient_capability_decode(command, zclient, length, vrf_id); | |
2674 | break; | |
d62a17ae | 2675 | case ZEBRA_ROUTER_ID_UPDATE: |
2676 | if (zclient->router_id_update) | |
2677 | (*zclient->router_id_update)(command, zclient, length, | |
2678 | vrf_id); | |
2679 | break; | |
2680 | case ZEBRA_VRF_ADD: | |
2681 | zclient_vrf_add(zclient, vrf_id); | |
2682 | break; | |
2683 | case ZEBRA_VRF_DELETE: | |
2684 | zclient_vrf_delete(zclient, vrf_id); | |
2685 | break; | |
2686 | case ZEBRA_INTERFACE_ADD: | |
2687 | if (zclient->interface_add) | |
2688 | (*zclient->interface_add)(command, zclient, length, | |
2689 | vrf_id); | |
2690 | break; | |
2691 | case ZEBRA_INTERFACE_DELETE: | |
2692 | if (zclient->interface_delete) | |
2693 | (*zclient->interface_delete)(command, zclient, length, | |
2694 | vrf_id); | |
2695 | break; | |
2696 | case ZEBRA_INTERFACE_ADDRESS_ADD: | |
2697 | if (zclient->interface_address_add) | |
2698 | (*zclient->interface_address_add)(command, zclient, | |
2699 | length, vrf_id); | |
2700 | break; | |
2701 | case ZEBRA_INTERFACE_ADDRESS_DELETE: | |
2702 | if (zclient->interface_address_delete) | |
2703 | (*zclient->interface_address_delete)(command, zclient, | |
2704 | length, vrf_id); | |
2705 | break; | |
2706 | case ZEBRA_INTERFACE_BFD_DEST_UPDATE: | |
2707 | if (zclient->interface_bfd_dest_update) | |
2708 | (*zclient->interface_bfd_dest_update)(command, zclient, | |
2709 | length, vrf_id); | |
2710 | break; | |
2711 | case ZEBRA_INTERFACE_NBR_ADDRESS_ADD: | |
2712 | if (zclient->interface_nbr_address_add) | |
2713 | (*zclient->interface_nbr_address_add)(command, zclient, | |
2714 | length, vrf_id); | |
2715 | break; | |
2716 | case ZEBRA_INTERFACE_NBR_ADDRESS_DELETE: | |
2717 | if (zclient->interface_nbr_address_delete) | |
2718 | (*zclient->interface_nbr_address_delete)( | |
2719 | command, zclient, length, vrf_id); | |
2720 | break; | |
2721 | case ZEBRA_INTERFACE_UP: | |
2722 | if (zclient->interface_up) | |
2723 | (*zclient->interface_up)(command, zclient, length, | |
2724 | vrf_id); | |
2725 | break; | |
2726 | case ZEBRA_INTERFACE_DOWN: | |
2727 | if (zclient->interface_down) | |
2728 | (*zclient->interface_down)(command, zclient, length, | |
2729 | vrf_id); | |
2730 | break; | |
2731 | case ZEBRA_INTERFACE_VRF_UPDATE: | |
2732 | if (zclient->interface_vrf_update) | |
2733 | (*zclient->interface_vrf_update)(command, zclient, | |
2734 | length, vrf_id); | |
2735 | break; | |
2736 | case ZEBRA_NEXTHOP_UPDATE: | |
2737 | if (zclient_debug) | |
2738 | zlog_debug("zclient rcvd nexthop update\n"); | |
2739 | if (zclient->nexthop_update) | |
2740 | (*zclient->nexthop_update)(command, zclient, length, | |
2741 | vrf_id); | |
2742 | break; | |
2743 | case ZEBRA_IMPORT_CHECK_UPDATE: | |
2744 | if (zclient_debug) | |
2745 | zlog_debug("zclient rcvd import check update\n"); | |
2746 | if (zclient->import_check_update) | |
2747 | (*zclient->import_check_update)(command, zclient, | |
2748 | length, vrf_id); | |
2749 | break; | |
2750 | case ZEBRA_BFD_DEST_REPLAY: | |
2751 | if (zclient->bfd_dest_replay) | |
2752 | (*zclient->bfd_dest_replay)(command, zclient, length, | |
2753 | vrf_id); | |
2754 | break; | |
74489921 RW |
2755 | case ZEBRA_REDISTRIBUTE_ROUTE_ADD: |
2756 | if (zclient->redistribute_route_add) | |
2757 | (*zclient->redistribute_route_add)(command, zclient, | |
2758 | length, vrf_id); | |
d62a17ae | 2759 | break; |
74489921 RW |
2760 | case ZEBRA_REDISTRIBUTE_ROUTE_DEL: |
2761 | if (zclient->redistribute_route_del) | |
2762 | (*zclient->redistribute_route_del)(command, zclient, | |
2763 | length, vrf_id); | |
d62a17ae | 2764 | break; |
2765 | case ZEBRA_INTERFACE_LINK_PARAMS: | |
2766 | if (zclient->interface_link_params) | |
2767 | (*zclient->interface_link_params)(command, zclient, | |
2768 | length); | |
2769 | break; | |
2770 | case ZEBRA_FEC_UPDATE: | |
2771 | if (zclient_debug) | |
2772 | zlog_debug("zclient rcvd fec update\n"); | |
2773 | if (zclient->fec_update) | |
2774 | (*zclient->fec_update)(command, zclient, length); | |
2775 | break; | |
50f74cf1 | 2776 | case ZEBRA_LOCAL_ES_ADD: |
2777 | if (zclient->local_es_add) | |
2778 | (*zclient->local_es_add)(command, zclient, length, | |
2779 | vrf_id); | |
2780 | break; | |
2781 | case ZEBRA_LOCAL_ES_DEL: | |
2782 | if (zclient->local_es_del) | |
2783 | (*zclient->local_es_del)(command, zclient, length, | |
2784 | vrf_id); | |
2785 | break; | |
d62a17ae | 2786 | case ZEBRA_VNI_ADD: |
2787 | if (zclient->local_vni_add) | |
2788 | (*zclient->local_vni_add)(command, zclient, length, | |
2789 | vrf_id); | |
2790 | break; | |
2791 | case ZEBRA_VNI_DEL: | |
2792 | if (zclient->local_vni_del) | |
2793 | (*zclient->local_vni_del)(command, zclient, length, | |
2794 | vrf_id); | |
2795 | break; | |
b7cfce93 MK |
2796 | case ZEBRA_L3VNI_ADD: |
2797 | if (zclient->local_l3vni_add) | |
2798 | (*zclient->local_l3vni_add)(command, zclient, length, | |
2799 | vrf_id); | |
2800 | break; | |
2801 | case ZEBRA_L3VNI_DEL: | |
2802 | if (zclient->local_l3vni_del) | |
2803 | (*zclient->local_l3vni_del)(command, zclient, length, | |
2804 | vrf_id); | |
2805 | break; | |
d62a17ae | 2806 | case ZEBRA_MACIP_ADD: |
2807 | if (zclient->local_macip_add) | |
2808 | (*zclient->local_macip_add)(command, zclient, length, | |
2809 | vrf_id); | |
2810 | break; | |
2811 | case ZEBRA_MACIP_DEL: | |
2812 | if (zclient->local_macip_del) | |
2813 | (*zclient->local_macip_del)(command, zclient, length, | |
2814 | vrf_id); | |
2815 | break; | |
31310b25 MK |
2816 | case ZEBRA_IP_PREFIX_ROUTE_ADD: |
2817 | if (zclient->local_ip_prefix_add) | |
2818 | (*zclient->local_ip_prefix_add)(command, zclient, | |
2819 | length, vrf_id); | |
2820 | break; | |
2821 | case ZEBRA_IP_PREFIX_ROUTE_DEL: | |
2822 | if (zclient->local_ip_prefix_del) | |
2823 | (*zclient->local_ip_prefix_del)(command, zclient, | |
2824 | length, vrf_id); | |
2825 | break; | |
6833ae01 | 2826 | case ZEBRA_PW_STATUS_UPDATE: |
2827 | if (zclient->pw_status_update) | |
2828 | (*zclient->pw_status_update)(command, zclient, length, | |
2829 | vrf_id); | |
2830 | break; | |
7ea7b86e | 2831 | case ZEBRA_ROUTE_NOTIFY_OWNER: |
28b11f81 DS |
2832 | if (zclient->route_notify_owner) |
2833 | (*zclient->route_notify_owner)(command, zclient, length, | |
2834 | vrf_id); | |
7ea7b86e | 2835 | break; |
b6c5d343 DS |
2836 | case ZEBRA_RULE_NOTIFY_OWNER: |
2837 | if (zclient->rule_notify_owner) | |
2838 | (*zclient->rule_notify_owner)(command, zclient, length, | |
2839 | vrf_id); | |
955bfd98 PZ |
2840 | break; |
2841 | case ZEBRA_GET_LABEL_CHUNK: | |
2842 | if (zclient->label_chunk) | |
2843 | (*zclient->label_chunk)(command, zclient, length, | |
0313523d | 2844 | vrf_id); |
955bfd98 | 2845 | break; |
c16a0a62 PG |
2846 | case ZEBRA_IPSET_NOTIFY_OWNER: |
2847 | if (zclient->ipset_notify_owner) | |
2848 | (*zclient->ipset_notify_owner)(command, zclient, length, | |
2849 | vrf_id); | |
2850 | break; | |
2851 | case ZEBRA_IPSET_ENTRY_NOTIFY_OWNER: | |
2852 | if (zclient->ipset_entry_notify_owner) | |
2853 | (*zclient->ipset_entry_notify_owner)(command, | |
2854 | zclient, length, | |
2855 | vrf_id); | |
2856 | break; | |
2857 | case ZEBRA_IPTABLE_NOTIFY_OWNER: | |
2858 | if (zclient->iptable_notify_owner) | |
2859 | (*zclient->iptable_notify_owner)(command, | |
2860 | zclient, length, | |
2861 | vrf_id); | |
d62a17ae | 2862 | default: |
2863 | break; | |
634f9ea2 | 2864 | } |
d62a17ae | 2865 | |
2866 | if (zclient->sock < 0) | |
2867 | /* Connection was closed during packet processing. */ | |
2868 | return -1; | |
2869 | ||
2870 | /* Register read thread. */ | |
2871 | stream_reset(zclient->ibuf); | |
2872 | zclient_event(ZCLIENT_READ, zclient); | |
2873 | ||
2874 | return 0; | |
718e3744 | 2875 | } |
2876 | ||
d62a17ae | 2877 | void zclient_redistribute(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 2878 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 2879 | { |
718e3744 | 2880 | |
d62a17ae | 2881 | if (instance) { |
2882 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
2883 | if (redist_check_instance( | |
2884 | &zclient->mi_redist[afi][type], instance)) | |
2885 | return; | |
2886 | redist_add_instance(&zclient->mi_redist[afi][type], | |
2887 | instance); | |
2888 | } else { | |
2889 | if (!redist_check_instance( | |
2890 | &zclient->mi_redist[afi][type], instance)) | |
2891 | return; | |
2892 | redist_del_instance(&zclient->mi_redist[afi][type], | |
2893 | instance); | |
2894 | } | |
2895 | ||
2896 | } else { | |
2897 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
2898 | if (vrf_bitmap_check(zclient->redist[afi][type], | |
2899 | vrf_id)) | |
2900 | return; | |
2901 | vrf_bitmap_set(zclient->redist[afi][type], vrf_id); | |
2902 | } else { | |
2903 | if (!vrf_bitmap_check(zclient->redist[afi][type], | |
2904 | vrf_id)) | |
2905 | return; | |
2906 | vrf_bitmap_unset(zclient->redist[afi][type], vrf_id); | |
2907 | } | |
2908 | } | |
2909 | ||
2910 | if (zclient->sock > 0) | |
2911 | zebra_redistribute_send(command, zclient, afi, type, instance, | |
2912 | vrf_id); | |
718e3744 | 2913 | } |
2914 | ||
718e3744 | 2915 | |
d62a17ae | 2916 | void zclient_redistribute_default(int command, struct zclient *zclient, |
2917 | vrf_id_t vrf_id) | |
718e3744 | 2918 | { |
718e3744 | 2919 | |
d62a17ae | 2920 | if (command == ZEBRA_REDISTRIBUTE_DEFAULT_ADD) { |
2921 | if (vrf_bitmap_check(zclient->default_information, vrf_id)) | |
2922 | return; | |
2923 | vrf_bitmap_set(zclient->default_information, vrf_id); | |
2924 | } else { | |
2925 | if (!vrf_bitmap_check(zclient->default_information, vrf_id)) | |
2926 | return; | |
2927 | vrf_bitmap_unset(zclient->default_information, vrf_id); | |
2928 | } | |
2929 | ||
2930 | if (zclient->sock > 0) | |
2931 | zebra_message_send(zclient, command, vrf_id); | |
718e3744 | 2932 | } |
2933 | ||
d62a17ae | 2934 | static void zclient_event(enum event event, struct zclient *zclient) |
718e3744 | 2935 | { |
d62a17ae | 2936 | switch (event) { |
2937 | case ZCLIENT_SCHEDULE: | |
2938 | thread_add_event(zclient->master, zclient_connect, zclient, 0, | |
2939 | &zclient->t_connect); | |
2940 | break; | |
2941 | case ZCLIENT_CONNECT: | |
2942 | if (zclient_debug) | |
2943 | zlog_debug( | |
2944 | "zclient connect failures: %d schedule interval is now %d", | |
2945 | zclient->fail, zclient->fail < 3 ? 10 : 60); | |
2946 | thread_add_timer(zclient->master, zclient_connect, zclient, | |
2947 | zclient->fail < 3 ? 10 : 60, | |
2948 | &zclient->t_connect); | |
2949 | break; | |
2950 | case ZCLIENT_READ: | |
2951 | zclient->t_read = NULL; | |
2952 | thread_add_read(zclient->master, zclient_read, zclient, | |
2953 | zclient->sock, &zclient->t_read); | |
2954 | break; | |
2955 | } | |
718e3744 | 2956 | } |
b5114685 | 2957 | |
e0ae31b8 DS |
2958 | void zclient_interface_set_master(struct zclient *client, |
2959 | struct interface *master, | |
2960 | struct interface *slave) | |
2961 | { | |
2962 | struct stream *s; | |
2963 | ||
2964 | s = client->obuf; | |
2965 | stream_reset(s); | |
2966 | ||
2967 | zclient_create_header(s, ZEBRA_INTERFACE_SET_MASTER, master->vrf_id); | |
2968 | ||
a9ff90c4 | 2969 | stream_putl(s, master->vrf_id); |
e0ae31b8 | 2970 | stream_putl(s, master->ifindex); |
a9ff90c4 | 2971 | stream_putl(s, slave->vrf_id); |
e0ae31b8 DS |
2972 | stream_putl(s, slave->ifindex); |
2973 | ||
2974 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2975 | zclient_send_message(client); | |
2976 | } |