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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" |
6b0655a2 | 40 | |
4a1ab8e4 | 41 | DEFINE_MTYPE_STATIC(LIB, ZCLIENT, "Zclient") |
14878121 | 42 | DEFINE_MTYPE_STATIC(LIB, REDIST_INST, "Redistribution instance IDs") |
4a1ab8e4 | 43 | |
718e3744 | 44 | /* Zebra client events. */ |
d62a17ae | 45 | enum event { ZCLIENT_SCHEDULE, ZCLIENT_READ, ZCLIENT_CONNECT }; |
718e3744 | 46 | |
47 | /* Prototype for event manager. */ | |
d62a17ae | 48 | static void zclient_event(enum event, struct zclient *); |
718e3744 | 49 | |
689f5a8c DL |
50 | struct sockaddr_storage zclient_addr; |
51 | socklen_t zclient_addr_len; | |
b5114685 | 52 | |
718e3744 | 53 | /* This file local debug flag. */ |
54 | int zclient_debug = 0; | |
6b0655a2 | 55 | |
996c9314 | 56 | struct zclient_options zclient_options_default = {.receive_notify = false}; |
e1a1880d | 57 | |
718e3744 | 58 | /* Allocate zclient structure. */ |
e1a1880d DS |
59 | struct zclient *zclient_new_notify(struct thread_master *master, |
60 | struct zclient_options *opt) | |
718e3744 | 61 | { |
d62a17ae | 62 | struct zclient *zclient; |
63 | zclient = XCALLOC(MTYPE_ZCLIENT, sizeof(struct zclient)); | |
718e3744 | 64 | |
d62a17ae | 65 | zclient->ibuf = stream_new(ZEBRA_MAX_PACKET_SIZ); |
66 | zclient->obuf = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
67 | zclient->wb = buffer_new(0); | |
68 | zclient->master = master; | |
718e3744 | 69 | |
e1a1880d DS |
70 | zclient->receive_notify = opt->receive_notify; |
71 | ||
d62a17ae | 72 | return zclient; |
718e3744 | 73 | } |
74 | ||
228da428 | 75 | /* This function is only called when exiting, because |
634f9ea2 | 76 | many parts of the code do not check for I/O errors, so they could |
77 | reference an invalid pointer if the structure was ever freed. | |
634f9ea2 | 78 | |
228da428 | 79 | Free zclient structure. */ |
d62a17ae | 80 | void zclient_free(struct zclient *zclient) |
718e3744 | 81 | { |
d62a17ae | 82 | if (zclient->ibuf) |
83 | stream_free(zclient->ibuf); | |
84 | if (zclient->obuf) | |
85 | stream_free(zclient->obuf); | |
86 | if (zclient->wb) | |
87 | buffer_free(zclient->wb); | |
88 | ||
89 | XFREE(MTYPE_ZCLIENT, zclient); | |
718e3744 | 90 | } |
91 | ||
d7c0a89a QY |
92 | unsigned short *redist_check_instance(struct redist_proto *red, |
93 | unsigned short instance) | |
7c8ff89e | 94 | { |
d62a17ae | 95 | struct listnode *node; |
d7c0a89a | 96 | unsigned short *id; |
7c8ff89e | 97 | |
d62a17ae | 98 | if (!red->instances) |
99 | return NULL; | |
7c8ff89e | 100 | |
d62a17ae | 101 | for (ALL_LIST_ELEMENTS_RO(red->instances, node, id)) |
102 | if (*id == instance) | |
103 | return id; | |
7c8ff89e | 104 | |
d62a17ae | 105 | return NULL; |
7c8ff89e DS |
106 | } |
107 | ||
d7c0a89a | 108 | void redist_add_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 109 | { |
d7c0a89a | 110 | unsigned short *in; |
7c8ff89e | 111 | |
d62a17ae | 112 | red->enabled = 1; |
7c8ff89e | 113 | |
d62a17ae | 114 | if (!red->instances) |
115 | red->instances = list_new(); | |
7c8ff89e | 116 | |
d7c0a89a | 117 | in = XMALLOC(MTYPE_REDIST_INST, sizeof(unsigned short)); |
d62a17ae | 118 | *in = instance; |
119 | listnode_add(red->instances, in); | |
7c8ff89e DS |
120 | } |
121 | ||
d7c0a89a | 122 | void redist_del_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 123 | { |
d7c0a89a | 124 | unsigned short *id; |
d62a17ae | 125 | |
126 | id = redist_check_instance(red, instance); | |
127 | if (!id) | |
128 | return; | |
129 | ||
130 | listnode_delete(red->instances, id); | |
131 | XFREE(MTYPE_REDIST_INST, id); | |
132 | if (!red->instances->count) { | |
133 | red->enabled = 0; | |
acdf5e25 | 134 | list_delete_and_null(&red->instances); |
d62a17ae | 135 | } |
7c8ff89e DS |
136 | } |
137 | ||
718e3744 | 138 | /* Stop zebra client services. */ |
d62a17ae | 139 | void zclient_stop(struct zclient *zclient) |
718e3744 | 140 | { |
d62a17ae | 141 | afi_t afi; |
142 | int i; | |
143 | ||
144 | if (zclient_debug) | |
145 | zlog_debug("zclient stopped"); | |
146 | ||
147 | /* Stop threads. */ | |
148 | THREAD_OFF(zclient->t_read); | |
149 | THREAD_OFF(zclient->t_connect); | |
150 | THREAD_OFF(zclient->t_write); | |
151 | ||
152 | /* Reset streams. */ | |
153 | stream_reset(zclient->ibuf); | |
154 | stream_reset(zclient->obuf); | |
155 | ||
156 | /* Empty the write buffer. */ | |
157 | buffer_reset(zclient->wb); | |
158 | ||
159 | /* Close socket. */ | |
160 | if (zclient->sock >= 0) { | |
161 | close(zclient->sock); | |
162 | zclient->sock = -1; | |
163 | } | |
164 | zclient->fail = 0; | |
165 | ||
166 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
167 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
168 | vrf_bitmap_free(zclient->redist[afi][i]); | |
169 | zclient->redist[afi][i] = VRF_BITMAP_NULL; | |
170 | } | |
171 | redist_del_instance( | |
172 | &zclient->mi_redist[afi][zclient->redist_default], | |
173 | zclient->instance); | |
41246cb6 | 174 | } |
41246cb6 | 175 | |
d62a17ae | 176 | vrf_bitmap_free(zclient->default_information); |
177 | zclient->default_information = VRF_BITMAP_NULL; | |
718e3744 | 178 | } |
179 | ||
d62a17ae | 180 | void zclient_reset(struct zclient *zclient) |
718e3744 | 181 | { |
d62a17ae | 182 | afi_t afi; |
3d68677e | 183 | |
d62a17ae | 184 | zclient_stop(zclient); |
3d68677e | 185 | |
d62a17ae | 186 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
187 | redist_del_instance( | |
188 | &zclient->mi_redist[afi][zclient->redist_default], | |
189 | zclient->instance); | |
3d68677e | 190 | |
996c9314 LB |
191 | zclient_init(zclient, zclient->redist_default, zclient->instance, |
192 | zclient->privs); | |
718e3744 | 193 | } |
194 | ||
689f5a8c DL |
195 | /** |
196 | * Connect to zebra daemon. | |
197 | * @param zclient a pointer to zclient structure | |
198 | * @return socket fd just to make sure that connection established | |
199 | * @see zclient_init | |
e1a1880d | 200 | * @see zclient_new_notify |
689f5a8c DL |
201 | */ |
202 | int zclient_socket_connect(struct zclient *zclient) | |
718e3744 | 203 | { |
d62a17ae | 204 | int sock; |
205 | int ret; | |
d62a17ae | 206 | |
207 | /* We should think about IPv6 connection. */ | |
689f5a8c | 208 | sock = socket(zclient_addr.ss_family, SOCK_STREAM, 0); |
d62a17ae | 209 | if (sock < 0) |
210 | return -1; | |
211 | ||
689f5a8c | 212 | set_cloexec(sock); |
d62a17ae | 213 | |
342213ea DS |
214 | zclient->privs->change(ZPRIVS_RAISE); |
215 | setsockopt_so_sendbuf(sock, 1048576); | |
216 | zclient->privs->change(ZPRIVS_LOWER); | |
217 | ||
d62a17ae | 218 | /* Connect to zebra. */ |
996c9314 | 219 | ret = connect(sock, (struct sockaddr *)&zclient_addr, zclient_addr_len); |
d62a17ae | 220 | if (ret < 0) { |
221 | if (zclient_debug) | |
222 | zlog_warn("%s connect failure: %d(%s)", | |
223 | __PRETTY_FUNCTION__, errno, | |
224 | safe_strerror(errno)); | |
225 | close(sock); | |
226 | return -1; | |
227 | } | |
718e3744 | 228 | |
689f5a8c | 229 | zclient->sock = sock; |
d62a17ae | 230 | return sock; |
718e3744 | 231 | } |
232 | ||
d62a17ae | 233 | static int zclient_failed(struct zclient *zclient) |
634f9ea2 | 234 | { |
d62a17ae | 235 | zclient->fail++; |
236 | zclient_stop(zclient); | |
237 | zclient_event(ZCLIENT_CONNECT, zclient); | |
238 | return -1; | |
634f9ea2 | 239 | } |
240 | ||
d62a17ae | 241 | static int zclient_flush_data(struct thread *thread) |
634f9ea2 | 242 | { |
d62a17ae | 243 | struct zclient *zclient = THREAD_ARG(thread); |
244 | ||
245 | zclient->t_write = NULL; | |
246 | if (zclient->sock < 0) | |
247 | return -1; | |
248 | switch (buffer_flush_available(zclient->wb, zclient->sock)) { | |
249 | case BUFFER_ERROR: | |
250 | zlog_warn( | |
251 | "%s: buffer_flush_available failed on zclient fd %d, closing", | |
252 | __func__, zclient->sock); | |
253 | return zclient_failed(zclient); | |
254 | break; | |
255 | case BUFFER_PENDING: | |
256 | zclient->t_write = NULL; | |
257 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
258 | zclient->sock, &zclient->t_write); | |
259 | break; | |
260 | case BUFFER_EMPTY: | |
261 | break; | |
262 | } | |
263 | return 0; | |
634f9ea2 | 264 | } |
265 | ||
d62a17ae | 266 | int zclient_send_message(struct zclient *zclient) |
634f9ea2 | 267 | { |
d62a17ae | 268 | if (zclient->sock < 0) |
269 | return -1; | |
270 | switch (buffer_write(zclient->wb, zclient->sock, | |
271 | STREAM_DATA(zclient->obuf), | |
272 | stream_get_endp(zclient->obuf))) { | |
273 | case BUFFER_ERROR: | |
274 | zlog_warn("%s: buffer_write failed to zclient fd %d, closing", | |
275 | __func__, zclient->sock); | |
276 | return zclient_failed(zclient); | |
277 | break; | |
278 | case BUFFER_EMPTY: | |
279 | THREAD_OFF(zclient->t_write); | |
280 | break; | |
281 | case BUFFER_PENDING: | |
282 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
283 | zclient->sock, &zclient->t_write); | |
284 | break; | |
285 | } | |
286 | return 0; | |
634f9ea2 | 287 | } |
288 | ||
d62a17ae | 289 | void zclient_create_header(struct stream *s, uint16_t command, vrf_id_t vrf_id) |
c1b9800a | 290 | { |
d62a17ae | 291 | /* length placeholder, caller can update */ |
292 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
293 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
294 | stream_putc(s, ZSERV_VERSION); | |
a9ff90c4 | 295 | stream_putl(s, vrf_id); |
d62a17ae | 296 | stream_putw(s, command); |
c1b9800a | 297 | } |
298 | ||
d7c0a89a QY |
299 | int zclient_read_header(struct stream *s, int sock, uint16_t *size, |
300 | uint8_t *marker, uint8_t *version, vrf_id_t *vrf_id, | |
301 | uint16_t *cmd) | |
55119089 | 302 | { |
d62a17ae | 303 | if (stream_read(s, sock, ZEBRA_HEADER_SIZE) != ZEBRA_HEADER_SIZE) |
304 | return -1; | |
305 | ||
ec93aa12 DS |
306 | STREAM_GETW(s, *size); |
307 | *size -= ZEBRA_HEADER_SIZE; | |
308 | STREAM_GETC(s, *marker); | |
309 | STREAM_GETC(s, *version); | |
a9ff90c4 | 310 | STREAM_GETL(s, *vrf_id); |
ec93aa12 | 311 | STREAM_GETW(s, *cmd); |
d62a17ae | 312 | |
313 | if (*version != ZSERV_VERSION || *marker != ZEBRA_HEADER_MARKER) { | |
314 | zlog_err( | |
315 | "%s: socket %d version mismatch, marker %d, version %d", | |
316 | __func__, sock, *marker, *version); | |
317 | return -1; | |
318 | } | |
319 | ||
320 | if (*size && stream_read(s, sock, *size) != *size) | |
321 | return -1; | |
322 | ||
ec93aa12 | 323 | stream_failure: |
d62a17ae | 324 | return 0; |
55119089 ND |
325 | } |
326 | ||
124ead27 QY |
327 | bool zapi_parse_header(struct stream *zmsg, struct zmsghdr *hdr) |
328 | { | |
329 | STREAM_GETW(zmsg, hdr->length); | |
330 | STREAM_GETC(zmsg, hdr->marker); | |
331 | STREAM_GETC(zmsg, hdr->version); | |
107afcd1 | 332 | STREAM_GETL(zmsg, hdr->vrf_id); |
124ead27 QY |
333 | STREAM_GETW(zmsg, hdr->command); |
334 | return true; | |
335 | stream_failure: | |
336 | return false; | |
337 | } | |
338 | ||
634f9ea2 | 339 | /* Send simple Zebra message. */ |
d62a17ae | 340 | static int zebra_message_send(struct zclient *zclient, int command, |
341 | vrf_id_t vrf_id) | |
718e3744 | 342 | { |
d62a17ae | 343 | struct stream *s; |
718e3744 | 344 | |
d62a17ae | 345 | /* Get zclient output buffer. */ |
346 | s = zclient->obuf; | |
347 | stream_reset(s); | |
718e3744 | 348 | |
d62a17ae | 349 | /* Send very simple command only Zebra message. */ |
350 | zclient_create_header(s, command, vrf_id); | |
351 | ||
352 | return zclient_send_message(zclient); | |
718e3744 | 353 | } |
354 | ||
d62a17ae | 355 | static int zebra_hello_send(struct zclient *zclient) |
2ea1ab1c | 356 | { |
d62a17ae | 357 | struct stream *s; |
358 | ||
359 | if (zclient->redist_default) { | |
360 | s = zclient->obuf; | |
361 | stream_reset(s); | |
362 | ||
363 | /* The VRF ID in the HELLO message is always 0. */ | |
364 | zclient_create_header(s, ZEBRA_HELLO, VRF_DEFAULT); | |
365 | stream_putc(s, zclient->redist_default); | |
366 | stream_putw(s, zclient->instance); | |
e1a1880d DS |
367 | if (zclient->receive_notify) |
368 | stream_putc(s, 1); | |
369 | else | |
370 | stream_putc(s, 0); | |
371 | ||
d62a17ae | 372 | stream_putw_at(s, 0, stream_get_endp(s)); |
373 | return zclient_send_message(zclient); | |
374 | } | |
375 | ||
376 | return 0; | |
2ea1ab1c VT |
377 | } |
378 | ||
7d061b3c | 379 | void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id, afi_t afi, |
339e36d2 | 380 | mpls_label_t label, enum lsp_types_t ltype) |
c83c5e44 DS |
381 | { |
382 | struct stream *s; | |
383 | ||
384 | s = zclient->obuf; | |
385 | stream_reset(s); | |
386 | ||
387 | zclient_create_header(s, ZEBRA_VRF_LABEL, vrf_id); | |
388 | stream_putl(s, label); | |
7d061b3c | 389 | stream_putc(s, afi); |
339e36d2 | 390 | stream_putc(s, ltype); |
c83c5e44 DS |
391 | stream_putw_at(s, 0, stream_get_endp(s)); |
392 | zclient_send_message(zclient); | |
393 | } | |
394 | ||
0e5223e7 | 395 | /* Send register requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 396 | void zclient_send_reg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
7076bb2f | 397 | { |
d62a17ae | 398 | int i; |
399 | afi_t afi; | |
400 | ||
d62a17ae | 401 | /* If not connected to the zebra yet. */ |
402 | if (zclient->sock < 0) | |
403 | return; | |
404 | ||
405 | if (zclient_debug) | |
406 | zlog_debug("%s: send register messages for VRF %u", __func__, | |
407 | vrf_id); | |
408 | ||
409 | /* We need router-id information. */ | |
410 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_ADD, vrf_id); | |
411 | ||
412 | /* We need interface information. */ | |
413 | zebra_message_send(zclient, ZEBRA_INTERFACE_ADD, vrf_id); | |
414 | ||
415 | /* Set unwanted redistribute route. */ | |
416 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
417 | vrf_bitmap_set(zclient->redist[afi][zclient->redist_default], | |
418 | vrf_id); | |
419 | ||
420 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
421 | if (vrf_id == VRF_DEFAULT) { |
422 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
423 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
424 | if (!zclient->mi_redist[afi][i].enabled) | |
425 | continue; | |
426 | ||
427 | struct listnode *node; | |
d7c0a89a | 428 | unsigned short *id; |
0d9e7f45 DS |
429 | |
430 | for (ALL_LIST_ELEMENTS_RO( | |
431 | zclient->mi_redist[afi][i] | |
996c9314 LB |
432 | .instances, |
433 | node, id)) | |
0d9e7f45 DS |
434 | if (!(i == zclient->redist_default |
435 | && *id == zclient->instance)) | |
436 | zebra_redistribute_send( | |
437 | ZEBRA_REDISTRIBUTE_ADD, | |
996c9314 | 438 | zclient, afi, i, *id, |
0d9e7f45 DS |
439 | VRF_DEFAULT); |
440 | } | |
441 | } | |
442 | } | |
d62a17ae | 443 | |
70172b1c | 444 | /* Resend all redistribute request. */ |
d62a17ae | 445 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
446 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
447 | if (i != zclient->redist_default | |
448 | && vrf_bitmap_check(zclient->redist[afi][i], | |
449 | vrf_id)) | |
450 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, | |
451 | zclient, afi, i, 0, | |
452 | vrf_id); | |
453 | ||
454 | /* If default information is needed. */ | |
455 | if (vrf_bitmap_check(zclient->default_information, VRF_DEFAULT)) | |
456 | zebra_message_send(zclient, ZEBRA_REDISTRIBUTE_DEFAULT_ADD, | |
457 | vrf_id); | |
7076bb2f FL |
458 | } |
459 | ||
0e5223e7 | 460 | /* Send unregister requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 461 | void zclient_send_dereg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
0e5223e7 | 462 | { |
d62a17ae | 463 | int i; |
464 | afi_t afi; | |
465 | ||
d62a17ae | 466 | /* If not connected to the zebra yet. */ |
467 | if (zclient->sock < 0) | |
468 | return; | |
469 | ||
470 | if (zclient_debug) | |
471 | zlog_debug("%s: send deregister messages for VRF %u", __func__, | |
472 | vrf_id); | |
473 | ||
474 | /* We need router-id information. */ | |
475 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_DELETE, vrf_id); | |
476 | ||
477 | /* We need interface information. */ | |
478 | zebra_message_send(zclient, ZEBRA_INTERFACE_DELETE, vrf_id); | |
479 | ||
480 | /* Set unwanted redistribute route. */ | |
481 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
09eef679 DS |
482 | vrf_bitmap_unset(zclient->redist[afi][zclient->redist_default], |
483 | vrf_id); | |
d62a17ae | 484 | |
485 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
486 | if (vrf_id == VRF_DEFAULT) { |
487 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
488 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
489 | if (!zclient->mi_redist[afi][i].enabled) | |
490 | continue; | |
491 | ||
492 | struct listnode *node; | |
d7c0a89a | 493 | unsigned short *id; |
0d9e7f45 DS |
494 | |
495 | for (ALL_LIST_ELEMENTS_RO( | |
496 | zclient->mi_redist[afi][i] | |
996c9314 LB |
497 | .instances, |
498 | node, id)) | |
0d9e7f45 DS |
499 | if (!(i == zclient->redist_default |
500 | && *id == zclient->instance)) | |
501 | zebra_redistribute_send( | |
502 | ZEBRA_REDISTRIBUTE_DELETE, | |
996c9314 | 503 | zclient, afi, i, *id, |
0d9e7f45 DS |
504 | VRF_DEFAULT); |
505 | } | |
506 | } | |
507 | } | |
d62a17ae | 508 | |
509 | /* Flush all redistribute request. */ | |
510 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
511 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
512 | if (i != zclient->redist_default | |
513 | && vrf_bitmap_check(zclient->redist[afi][i], | |
514 | vrf_id)) | |
515 | zebra_redistribute_send( | |
516 | ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
517 | i, 0, vrf_id); | |
518 | ||
519 | /* If default information is needed. */ | |
520 | if (vrf_bitmap_check(zclient->default_information, VRF_DEFAULT)) | |
521 | zebra_message_send(zclient, ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, | |
522 | vrf_id); | |
0e5223e7 | 523 | } |
524 | ||
4a04e5f7 | 525 | /* Send request to zebra daemon to start or stop RA. */ |
d62a17ae | 526 | void zclient_send_interface_radv_req(struct zclient *zclient, vrf_id_t vrf_id, |
527 | struct interface *ifp, int enable, | |
528 | int ra_interval) | |
4a04e5f7 | 529 | { |
d62a17ae | 530 | struct stream *s; |
4a04e5f7 | 531 | |
d62a17ae | 532 | /* If not connected to the zebra yet. */ |
533 | if (zclient->sock < 0) | |
534 | return; | |
4a04e5f7 | 535 | |
d62a17ae | 536 | /* Form and send message. */ |
537 | s = zclient->obuf; | |
538 | stream_reset(s); | |
4a04e5f7 | 539 | |
d62a17ae | 540 | if (enable) |
541 | zclient_create_header(s, ZEBRA_INTERFACE_ENABLE_RADV, vrf_id); | |
542 | else | |
543 | zclient_create_header(s, ZEBRA_INTERFACE_DISABLE_RADV, vrf_id); | |
4a04e5f7 | 544 | |
d62a17ae | 545 | stream_putl(s, ifp->ifindex); |
546 | stream_putl(s, ra_interval); | |
4a04e5f7 | 547 | |
d62a17ae | 548 | stream_putw_at(s, 0, stream_get_endp(s)); |
4a04e5f7 | 549 | |
d62a17ae | 550 | zclient_send_message(zclient); |
4a04e5f7 | 551 | } |
552 | ||
718e3744 | 553 | /* Make connection to zebra daemon. */ |
d62a17ae | 554 | int zclient_start(struct zclient *zclient) |
718e3744 | 555 | { |
d62a17ae | 556 | if (zclient_debug) |
557 | zlog_info("zclient_start is called"); | |
558 | ||
d62a17ae | 559 | /* If already connected to the zebra. */ |
560 | if (zclient->sock >= 0) | |
561 | return 0; | |
562 | ||
563 | /* Check connect thread. */ | |
564 | if (zclient->t_connect) | |
565 | return 0; | |
566 | ||
567 | if (zclient_socket_connect(zclient) < 0) { | |
568 | if (zclient_debug) | |
569 | zlog_debug("zclient connection fail"); | |
570 | zclient->fail++; | |
571 | zclient_event(ZCLIENT_CONNECT, zclient); | |
572 | return -1; | |
573 | } | |
718e3744 | 574 | |
d62a17ae | 575 | if (set_nonblocking(zclient->sock) < 0) |
576 | zlog_warn("%s: set_nonblocking(%d) failed", __func__, | |
577 | zclient->sock); | |
718e3744 | 578 | |
d62a17ae | 579 | /* Clear fail count. */ |
580 | zclient->fail = 0; | |
581 | if (zclient_debug) | |
582 | zlog_debug("zclient connect success with socket [%d]", | |
583 | zclient->sock); | |
718e3744 | 584 | |
d62a17ae | 585 | /* Create read thread. */ |
586 | zclient_event(ZCLIENT_READ, zclient); | |
718e3744 | 587 | |
d62a17ae | 588 | zebra_hello_send(zclient); |
718e3744 | 589 | |
d62a17ae | 590 | /* Inform the successful connection. */ |
591 | if (zclient->zebra_connected) | |
592 | (*zclient->zebra_connected)(zclient); | |
718e3744 | 593 | |
d62a17ae | 594 | return 0; |
718e3744 | 595 | } |
6b0655a2 | 596 | |
078430f6 DS |
597 | /* Initialize zebra client. Argument redist_default is unwanted |
598 | redistribute route type. */ | |
d7c0a89a QY |
599 | void zclient_init(struct zclient *zclient, int redist_default, |
600 | unsigned short instance, struct zebra_privs_t *privs) | |
078430f6 | 601 | { |
d62a17ae | 602 | int afi, i; |
603 | ||
d62a17ae | 604 | /* Set -1 to the default socket value. */ |
605 | zclient->sock = -1; | |
342213ea | 606 | zclient->privs = privs; |
d62a17ae | 607 | |
608 | /* Clear redistribution flags. */ | |
609 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
610 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
611 | zclient->redist[afi][i] = vrf_bitmap_init(); | |
612 | ||
613 | /* Set unwanted redistribute route. bgpd does not need BGP route | |
614 | redistribution. */ | |
615 | zclient->redist_default = redist_default; | |
616 | zclient->instance = instance; | |
617 | /* Pending: make afi(s) an arg. */ | |
618 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
619 | redist_add_instance(&zclient->mi_redist[afi][redist_default], | |
620 | instance); | |
621 | ||
622 | /* Set default-information redistribute to zero. */ | |
623 | zclient->default_information = vrf_bitmap_init(); | |
d62a17ae | 624 | |
625 | if (zclient_debug) | |
626 | zlog_debug("zclient_start is called"); | |
627 | ||
628 | zclient_event(ZCLIENT_SCHEDULE, zclient); | |
7076bb2f | 629 | } |
078430f6 | 630 | |
7076bb2f FL |
631 | /* This function is a wrapper function for calling zclient_start from |
632 | timer or event thread. */ | |
d62a17ae | 633 | static int zclient_connect(struct thread *t) |
7076bb2f | 634 | { |
d62a17ae | 635 | struct zclient *zclient; |
078430f6 | 636 | |
d62a17ae | 637 | zclient = THREAD_ARG(t); |
638 | zclient->t_connect = NULL; | |
078430f6 | 639 | |
d62a17ae | 640 | if (zclient_debug) |
641 | zlog_debug("zclient_connect is called"); | |
078430f6 | 642 | |
d62a17ae | 643 | return zclient_start(zclient); |
078430f6 DS |
644 | } |
645 | ||
3c192540 DS |
646 | int zclient_send_rnh(struct zclient *zclient, int command, struct prefix *p, |
647 | bool exact_match, vrf_id_t vrf_id) | |
648 | { | |
649 | struct stream *s; | |
650 | ||
651 | s = zclient->obuf; | |
652 | stream_reset(s); | |
653 | zclient_create_header(s, command, vrf_id); | |
654 | stream_putc(s, (exact_match) ? 1 : 0); | |
655 | ||
656 | stream_putw(s, PREFIX_FAMILY(p)); | |
657 | stream_putc(s, p->prefixlen); | |
658 | switch (PREFIX_FAMILY(p)) { | |
659 | case AF_INET: | |
660 | stream_put_in_addr(s, &p->u.prefix4); | |
661 | break; | |
662 | case AF_INET6: | |
663 | stream_put(s, &(p->u.prefix6), 16); | |
664 | break; | |
665 | default: | |
666 | break; | |
667 | } | |
668 | stream_putw_at(s, 0, stream_get_endp(s)); | |
669 | ||
670 | return zclient_send_message(zclient); | |
671 | } | |
672 | ||
d62a17ae | 673 | /* |
674 | * "xdr_encode"-like interface that allows daemon (client) to send | |
675 | * a message to zebra server for a route that needs to be | |
676 | * added/deleted to the kernel. Info about the route is specified | |
677 | * by the caller in a struct zapi_ipv4. zapi_ipv4_read() then writes | |
678 | * the info down the zclient socket using the stream_* functions. | |
679 | * | |
680 | * The corresponding read ("xdr_decode") function on the server | |
681 | * side is zread_ipv4_add()/zread_ipv4_delete(). | |
682 | * | |
683 | * 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 | |
684 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
685 | * | Length (2) | Command | Route Type | | |
686 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
687 | * | ZEBRA Flags | Message Flags | Prefix length | | |
688 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
689 | * | Destination IPv4 Prefix for route | | |
690 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
691 | * | Nexthop count | | |
692 | * +-+-+-+-+-+-+-+-+ | |
693 | * | |
694 | * | |
695 | * A number of IPv4 nexthop(s) or nexthop interface index(es) are then | |
696 | * described, as per the Nexthop count. Each nexthop described as: | |
697 | * | |
698 | * +-+-+-+-+-+-+-+-+ | |
699 | * | Nexthop Type | Set to one of ZEBRA_NEXTHOP_* | |
700 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
701 | * | IPv4 Nexthop address or Interface Index number | | |
702 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
703 | * | |
09a484dd DL |
704 | * Alternatively, if the route is a blackhole route, then Nexthop count |
705 | * is set to 1 and a nexthop of type NEXTHOP_TYPE_BLACKHOLE is the sole | |
706 | * nexthop. | |
d62a17ae | 707 | * |
708 | * The original struct zapi_ipv4, zapi_ipv4_route() and zread_ipv4_*() | |
709 | * infrastructure was built around the traditional (32-bit "gate OR | |
710 | * ifindex") nexthop data unit. A special encoding can be used to feed | |
711 | * onlink (64-bit "gate AND ifindex") nexthops into zapi_ipv4_route() | |
712 | * using the same zapi_ipv4 structure. This is done by setting zapi_ipv4 | |
713 | * fields as follows: | |
714 | * - .message |= ZAPI_MESSAGE_NEXTHOP | ZAPI_MESSAGE_ONLINK | |
715 | * - .nexthop_num == .ifindex_num | |
716 | * - .nexthop and .ifindex are filled with gate and ifindex parts of | |
717 | * each compound nexthop, both in the same order | |
718 | * | |
719 | * zapi_ipv4_route() will produce two nexthop data units for each such | |
720 | * interleaved 64-bit nexthop. On the zserv side of the socket it will be | |
721 | * mapped to a singlle NEXTHOP_TYPE_IPV4_IFINDEX_OL RIB nexthop structure. | |
722 | * | |
723 | * If ZAPI_MESSAGE_DISTANCE is set, the distance value is written as a 1 | |
724 | * byte value. | |
725 | * | |
726 | * If ZAPI_MESSAGE_METRIC is set, the metric value is written as an 8 | |
727 | * byte value. | |
728 | * | |
729 | * If ZAPI_MESSAGE_TAG is set, the tag value is written as a 4 byte value | |
730 | * | |
731 | * If ZAPI_MESSAGE_MTU is set, the mtu value is written as a 4 byte value | |
732 | * | |
733 | * XXX: No attention paid to alignment. | |
734 | */ | |
d7c0a89a | 735 | int zapi_ipv4_route(uint8_t cmd, struct zclient *zclient, struct prefix_ipv4 *p, |
d62a17ae | 736 | struct zapi_ipv4 *api) |
718e3744 | 737 | { |
d62a17ae | 738 | int i; |
739 | int psize; | |
740 | struct stream *s; | |
741 | ||
742 | /* Reset stream. */ | |
743 | s = zclient->obuf; | |
744 | stream_reset(s); | |
745 | ||
746 | /* Some checks for labeled-unicast. The current expectation is that each | |
747 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
748 | */ | |
749 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
750 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
751 | /* We expect prefixes installed with labels and the number to | |
752 | * match | |
753 | * the number of nexthops. | |
754 | */ | |
755 | assert(api->label_num == api->nexthop_num); | |
756 | } | |
757 | ||
758 | zclient_create_header(s, cmd, api->vrf_id); | |
759 | ||
760 | /* Put type and nexthop. */ | |
761 | stream_putc(s, api->type); | |
762 | stream_putw(s, api->instance); | |
763 | stream_putl(s, api->flags); | |
764 | stream_putc(s, api->message); | |
765 | stream_putw(s, api->safi); | |
766 | ||
767 | /* Put prefix information. */ | |
768 | psize = PSIZE(p->prefixlen); | |
769 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 770 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 771 | |
772 | /* Nexthop, ifindex, distance and metric information. */ | |
773 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 774 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 775 | |
776 | for (i = 0; i < api->nexthop_num; i++) { | |
777 | stream_putc(s, NEXTHOP_TYPE_IPV4); | |
778 | stream_put_in_addr(s, api->nexthop[i]); | |
779 | /* For labeled-unicast, each nexthop is followed by | |
780 | * label. */ | |
781 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
782 | stream_putl(s, api->label[i]); | |
783 | } | |
784 | for (i = 0; i < api->ifindex_num; i++) { | |
785 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
786 | stream_putl(s, api->ifindex[i]); | |
787 | } | |
788 | } | |
789 | ||
790 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
791 | stream_putc(s, api->distance); | |
792 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
793 | stream_putl(s, api->metric); | |
794 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
795 | stream_putl(s, api->tag); | |
796 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
797 | stream_putl(s, api->mtu); | |
798 | ||
799 | /* Put length at the first point of the stream. */ | |
800 | stream_putw_at(s, 0, stream_get_endp(s)); | |
801 | ||
802 | return zclient_send_message(zclient); | |
718e3744 | 803 | } |
804 | ||
d7c0a89a | 805 | int zapi_ipv4_route_ipv6_nexthop(uint8_t cmd, struct zclient *zclient, |
d62a17ae | 806 | struct prefix_ipv4 *p, struct zapi_ipv6 *api) |
8a92a8a0 | 807 | { |
d62a17ae | 808 | int i; |
809 | int psize; | |
810 | struct stream *s; | |
811 | ||
812 | /* Reset stream. */ | |
813 | s = zclient->obuf; | |
814 | stream_reset(s); | |
815 | ||
816 | /* Some checks for labeled-unicast. The current expectation is that each | |
817 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
818 | */ | |
819 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
820 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
821 | /* We expect prefixes installed with labels and the number to | |
822 | * match | |
823 | * the number of nexthops. | |
824 | */ | |
825 | assert(api->label_num == api->nexthop_num); | |
8a92a8a0 | 826 | } |
d62a17ae | 827 | |
828 | zclient_create_header(s, cmd, api->vrf_id); | |
829 | ||
830 | /* Put type and nexthop. */ | |
831 | stream_putc(s, api->type); | |
832 | stream_putw(s, api->instance); | |
833 | stream_putl(s, api->flags); | |
834 | stream_putc(s, api->message); | |
835 | stream_putw(s, api->safi); | |
836 | ||
837 | /* Put prefix information. */ | |
838 | psize = PSIZE(p->prefixlen); | |
839 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 840 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 841 | |
842 | /* Nexthop, ifindex, distance and metric information. */ | |
843 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 844 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 845 | |
846 | for (i = 0; i < api->nexthop_num; i++) { | |
847 | stream_putc(s, NEXTHOP_TYPE_IPV6); | |
d7c0a89a | 848 | stream_write(s, (uint8_t *)api->nexthop[i], 16); |
d62a17ae | 849 | /* For labeled-unicast, each nexthop is followed by |
850 | * label. */ | |
851 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
852 | stream_putl(s, api->label[i]); | |
853 | } | |
854 | for (i = 0; i < api->ifindex_num; i++) { | |
855 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
856 | stream_putl(s, api->ifindex[i]); | |
857 | } | |
8a92a8a0 | 858 | } |
8a92a8a0 | 859 | |
d62a17ae | 860 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
861 | stream_putc(s, api->distance); | |
862 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
863 | stream_putl(s, api->metric); | |
864 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
865 | stream_putl(s, api->tag); | |
866 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
867 | stream_putl(s, api->mtu); | |
8a92a8a0 | 868 | |
d62a17ae | 869 | /* Put length at the first point of the stream. */ |
870 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a92a8a0 | 871 | |
d62a17ae | 872 | return zclient_send_message(zclient); |
8a92a8a0 DS |
873 | } |
874 | ||
d7c0a89a | 875 | int zapi_ipv6_route(uint8_t cmd, struct zclient *zclient, struct prefix_ipv6 *p, |
d62a17ae | 876 | struct prefix_ipv6 *src_p, struct zapi_ipv6 *api) |
718e3744 | 877 | { |
d62a17ae | 878 | int i; |
879 | int psize; | |
880 | struct stream *s; | |
881 | ||
882 | /* either we have !SRCPFX && src_p == NULL, or SRCPFX && src_p != NULL | |
883 | */ | |
884 | assert(!(api->message & ZAPI_MESSAGE_SRCPFX) == !src_p); | |
885 | ||
886 | /* Reset stream. */ | |
887 | s = zclient->obuf; | |
888 | stream_reset(s); | |
889 | ||
890 | /* Some checks for labeled-unicast. The current expectation is that each | |
891 | * nexthop is accompanied by a label in the case of labeled-unicast. | |
892 | */ | |
893 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL) | |
894 | && CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
895 | /* We expect prefixes installed with labels and the number to | |
896 | * match | |
897 | * the number of nexthops. | |
898 | */ | |
899 | assert(api->label_num == api->nexthop_num); | |
718e3744 | 900 | } |
d62a17ae | 901 | |
902 | zclient_create_header(s, cmd, api->vrf_id); | |
903 | ||
904 | /* Put type and nexthop. */ | |
905 | stream_putc(s, api->type); | |
906 | stream_putw(s, api->instance); | |
907 | stream_putl(s, api->flags); | |
908 | stream_putc(s, api->message); | |
909 | stream_putw(s, api->safi); | |
910 | ||
911 | /* Put prefix information. */ | |
912 | psize = PSIZE(p->prefixlen); | |
913 | stream_putc(s, p->prefixlen); | |
d7c0a89a | 914 | stream_write(s, (uint8_t *)&p->prefix, psize); |
d62a17ae | 915 | |
916 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
917 | psize = PSIZE(src_p->prefixlen); | |
918 | stream_putc(s, src_p->prefixlen); | |
d7c0a89a | 919 | stream_write(s, (uint8_t *)&src_p->prefix, psize); |
718e3744 | 920 | } |
718e3744 | 921 | |
d62a17ae | 922 | /* Nexthop, ifindex, distance and metric information. */ |
923 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
09a484dd | 924 | stream_putc(s, api->nexthop_num + api->ifindex_num); |
d62a17ae | 925 | |
926 | for (i = 0; i < api->nexthop_num; i++) { | |
927 | stream_putc(s, NEXTHOP_TYPE_IPV6); | |
d7c0a89a | 928 | stream_write(s, (uint8_t *)api->nexthop[i], 16); |
d62a17ae | 929 | /* For labeled-unicast, each nexthop is followed by |
930 | * label. */ | |
931 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) | |
932 | stream_putl(s, api->label[i]); | |
933 | } | |
934 | for (i = 0; i < api->ifindex_num; i++) { | |
935 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
936 | stream_putl(s, api->ifindex[i]); | |
937 | } | |
938 | } | |
718e3744 | 939 | |
d62a17ae | 940 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
941 | stream_putc(s, api->distance); | |
942 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
943 | stream_putl(s, api->metric); | |
944 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
945 | stream_putl(s, api->tag); | |
946 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
947 | stream_putl(s, api->mtu); | |
718e3744 | 948 | |
d62a17ae | 949 | /* Put length at the first point of the stream. */ |
950 | stream_putw_at(s, 0, stream_get_endp(s)); | |
951 | ||
952 | return zclient_send_message(zclient); | |
718e3744 | 953 | } |
718e3744 | 954 | |
d7c0a89a | 955 | int zclient_route_send(uint8_t cmd, struct zclient *zclient, |
0e51b4a3 | 956 | struct zapi_route *api) |
657cde12 | 957 | { |
0e51b4a3 RW |
958 | if (zapi_route_encode(cmd, zclient->obuf, api) < 0) |
959 | return -1; | |
960 | return zclient_send_message(zclient); | |
961 | } | |
962 | ||
d7c0a89a | 963 | int zapi_route_encode(uint8_t cmd, struct stream *s, struct zapi_route *api) |
0e51b4a3 RW |
964 | { |
965 | struct zapi_nexthop *api_nh; | |
d62a17ae | 966 | int i; |
967 | int psize; | |
d62a17ae | 968 | |
d62a17ae | 969 | stream_reset(s); |
d62a17ae | 970 | zclient_create_header(s, cmd, api->vrf_id); |
971 | ||
d62a17ae | 972 | stream_putc(s, api->type); |
973 | stream_putw(s, api->instance); | |
974 | stream_putl(s, api->flags); | |
975 | stream_putc(s, api->message); | |
832d0f56 | 976 | stream_putc(s, api->safi); |
90264d64 | 977 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) |
2dbad57f | 978 | stream_put(s, &(api->rmac), sizeof(struct ethaddr)); |
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)); | |
1049 | zlog_err( | |
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); | |
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 | } | |
d62a17ae | 1063 | } |
1064 | } | |
1065 | ||
0e51b4a3 | 1066 | /* Attributes. */ |
d62a17ae | 1067 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
1068 | stream_putc(s, api->distance); | |
1069 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
1070 | stream_putl(s, api->metric); | |
1071 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
1072 | stream_putl(s, api->tag); | |
1073 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
1074 | stream_putl(s, api->mtu); | |
ba1849ef DS |
1075 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1076 | stream_putl(s, api->tableid); | |
d62a17ae | 1077 | |
1078 | /* Put length at the first point of the stream. */ | |
1079 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1080 | ||
0e51b4a3 RW |
1081 | return 0; |
1082 | } | |
1083 | ||
1084 | int zapi_route_decode(struct stream *s, struct zapi_route *api) | |
1085 | { | |
1086 | struct zapi_nexthop *api_nh; | |
1087 | int i; | |
1088 | ||
1089 | memset(api, 0, sizeof(*api)); | |
1090 | ||
1091 | /* Type, flags, message. */ | |
ec93aa12 DS |
1092 | STREAM_GETC(s, api->type); |
1093 | if (api->type > ZEBRA_ROUTE_MAX) { | |
1094 | zlog_warn("%s: Specified route type: %d is not a legal value\n", | |
996c9314 | 1095 | __PRETTY_FUNCTION__, api->type); |
ec93aa12 DS |
1096 | return -1; |
1097 | } | |
1098 | ||
1099 | STREAM_GETW(s, api->instance); | |
1100 | STREAM_GETL(s, api->flags); | |
1101 | STREAM_GETC(s, api->message); | |
832d0f56 | 1102 | STREAM_GETC(s, api->safi); |
90264d64 | 1103 | if (CHECK_FLAG(api->flags, ZEBRA_FLAG_EVPN_ROUTE)) |
4ca997a8 | 1104 | STREAM_GET(&(api->rmac), s, sizeof(struct ethaddr)); |
0e51b4a3 RW |
1105 | |
1106 | /* Prefix. */ | |
ec93aa12 DS |
1107 | STREAM_GETC(s, api->prefix.family); |
1108 | STREAM_GETC(s, api->prefix.prefixlen); | |
0e51b4a3 RW |
1109 | switch (api->prefix.family) { |
1110 | case AF_INET: | |
ec93aa12 | 1111 | if (api->prefix.prefixlen > IPV4_MAX_PREFIXLEN) { |
996c9314 LB |
1112 | zlog_warn( |
1113 | "%s: V4 prefixlen is %d which should not be more than 32", | |
1114 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1115 | return -1; |
1116 | } | |
0e51b4a3 RW |
1117 | break; |
1118 | case AF_INET6: | |
ec93aa12 | 1119 | if (api->prefix.prefixlen > IPV6_MAX_PREFIXLEN) { |
996c9314 LB |
1120 | zlog_warn( |
1121 | "%s: v6 prefixlen is %d which should not be more than 128", | |
1122 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1123 | return -1; |
1124 | } | |
0e51b4a3 | 1125 | break; |
ec93aa12 DS |
1126 | default: |
1127 | zlog_warn("%s: Specified family %d is not v4 or v6", | |
1128 | __PRETTY_FUNCTION__, api->prefix.family); | |
1129 | return -1; | |
0e51b4a3 | 1130 | } |
ec93aa12 DS |
1131 | STREAM_GET(&api->prefix.u.prefix, s, PSIZE(api->prefix.prefixlen)); |
1132 | ||
0e51b4a3 RW |
1133 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { |
1134 | api->src_prefix.family = AF_INET6; | |
ec93aa12 DS |
1135 | STREAM_GETC(s, api->src_prefix.prefixlen); |
1136 | if (api->src_prefix.prefixlen > IPV6_MAX_PREFIXLEN) { | |
996c9314 LB |
1137 | zlog_warn( |
1138 | "%s: SRC Prefix prefixlen received: %d is too large", | |
1139 | __PRETTY_FUNCTION__, api->src_prefix.prefixlen); | |
ec93aa12 DS |
1140 | return -1; |
1141 | } | |
1142 | STREAM_GET(&api->src_prefix.prefix, s, | |
0e51b4a3 RW |
1143 | PSIZE(api->src_prefix.prefixlen)); |
1144 | ||
1145 | if (api->prefix.family != AF_INET6 | |
ec93aa12 | 1146 | || api->src_prefix.prefixlen == 0) { |
996c9314 LB |
1147 | zlog_warn( |
1148 | "%s: SRC prefix specified in some manner that makes no sense", | |
1149 | __PRETTY_FUNCTION__); | |
ec93aa12 DS |
1150 | return -1; |
1151 | } | |
0e51b4a3 RW |
1152 | } |
1153 | ||
1154 | /* Nexthops. */ | |
1155 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
ec93aa12 | 1156 | STREAM_GETW(s, api->nexthop_num); |
0e51b4a3 RW |
1157 | if (api->nexthop_num > MULTIPATH_NUM) { |
1158 | zlog_warn("%s: invalid number of nexthops (%u)", | |
1159 | __func__, api->nexthop_num); | |
1160 | return -1; | |
1161 | } | |
1162 | ||
1163 | for (i = 0; i < api->nexthop_num; i++) { | |
1164 | api_nh = &api->nexthops[i]; | |
1165 | ||
4a7371e9 | 1166 | STREAM_GETL(s, api_nh->vrf_id); |
ec93aa12 | 1167 | STREAM_GETC(s, api_nh->type); |
0e51b4a3 RW |
1168 | switch (api_nh->type) { |
1169 | case NEXTHOP_TYPE_BLACKHOLE: | |
ec93aa12 | 1170 | STREAM_GETC(s, api_nh->bh_type); |
0e51b4a3 RW |
1171 | break; |
1172 | case NEXTHOP_TYPE_IPV4: | |
ec93aa12 DS |
1173 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, |
1174 | IPV4_MAX_BYTELEN); | |
0e51b4a3 RW |
1175 | break; |
1176 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
ec93aa12 DS |
1177 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, |
1178 | IPV4_MAX_BYTELEN); | |
1179 | STREAM_GETL(s, api_nh->ifindex); | |
0e51b4a3 RW |
1180 | break; |
1181 | case NEXTHOP_TYPE_IFINDEX: | |
ec93aa12 | 1182 | STREAM_GETL(s, api_nh->ifindex); |
0e51b4a3 RW |
1183 | break; |
1184 | case NEXTHOP_TYPE_IPV6: | |
ec93aa12 | 1185 | STREAM_GET(&api_nh->gate.ipv6, s, 16); |
0e51b4a3 RW |
1186 | break; |
1187 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
ec93aa12 DS |
1188 | STREAM_GET(&api_nh->gate.ipv6, s, 16); |
1189 | STREAM_GETL(s, api_nh->ifindex); | |
0e51b4a3 | 1190 | break; |
ec93aa12 | 1191 | default: |
996c9314 LB |
1192 | zlog_warn( |
1193 | "%s: Specified nexthop type %d does not exist", | |
1194 | __PRETTY_FUNCTION__, api_nh->type); | |
ec93aa12 | 1195 | return -1; |
0e51b4a3 RW |
1196 | } |
1197 | ||
52dd3aa4 | 1198 | /* MPLS labels for BGP-LU or Segment Routing */ |
0e51b4a3 | 1199 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_LABEL)) { |
ec93aa12 | 1200 | STREAM_GETC(s, api_nh->label_num); |
52dd3aa4 RW |
1201 | |
1202 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1203 | zlog_warn( | |
1204 | "%s: invalid number of MPLS " | |
1205 | "labels (%u)", | |
1206 | __func__, api_nh->label_num); | |
1207 | return -1; | |
1208 | } | |
1209 | ||
ec93aa12 | 1210 | STREAM_GET(&api_nh->labels[0], s, |
52dd3aa4 RW |
1211 | api_nh->label_num |
1212 | * sizeof(mpls_label_t)); | |
0e51b4a3 RW |
1213 | } |
1214 | } | |
1215 | } | |
1216 | ||
1217 | /* Attributes. */ | |
1218 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
ec93aa12 | 1219 | STREAM_GETC(s, api->distance); |
0e51b4a3 | 1220 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) |
ec93aa12 | 1221 | STREAM_GETL(s, api->metric); |
0e51b4a3 | 1222 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) |
ec93aa12 | 1223 | STREAM_GETL(s, api->tag); |
0e51b4a3 | 1224 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) |
ec93aa12 | 1225 | STREAM_GETL(s, api->mtu); |
ba1849ef DS |
1226 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1227 | STREAM_GETL(s, api->tableid); | |
0e51b4a3 | 1228 | |
ec93aa12 | 1229 | stream_failure: |
0e51b4a3 | 1230 | return 0; |
657cde12 DS |
1231 | } |
1232 | ||
0031a6bb PG |
1233 | static void zapi_encode_prefix(struct stream *s, |
1234 | struct prefix *p, | |
1235 | uint8_t family) | |
1236 | { | |
1237 | struct prefix any; | |
1238 | ||
1239 | if (!p) { | |
1240 | memset(&any, 0, sizeof(any)); | |
1241 | any.family = family; | |
1242 | p = &any; | |
1243 | } | |
1244 | ||
1245 | stream_putc(s, p->family); | |
1246 | stream_putc(s, p->prefixlen); | |
1247 | stream_put(s, &p->u.prefix, prefix_blen(p)); | |
1248 | } | |
1249 | ||
1250 | int zapi_pbr_rule_encode(uint8_t cmd, struct stream *s, | |
1251 | struct pbr_rule *zrule) | |
1252 | { | |
1253 | stream_reset(s); | |
1254 | zclient_create_header(s, cmd, zrule->vrf_id); | |
1255 | ||
1256 | /* | |
1257 | * We are sending one item at a time at the moment | |
1258 | */ | |
1259 | stream_putl(s, 1); | |
1260 | ||
1261 | stream_putl(s, zrule->seq); | |
1262 | stream_putl(s, zrule->priority); | |
1263 | stream_putl(s, zrule->unique); | |
1264 | ||
1265 | zapi_encode_prefix(s, &(zrule->filter.src_ip), | |
1266 | zrule->filter.src_ip.family); | |
1267 | stream_putw(s, zrule->filter.src_port); /* src port */ | |
1268 | zapi_encode_prefix(s, &(zrule->filter.dst_ip), | |
1269 | zrule->filter.src_ip.family); | |
1270 | stream_putw(s, zrule->filter.dst_port); /* dst port */ | |
1271 | stream_putw(s, zrule->filter.fwmark); /* fwmark */ | |
1272 | ||
1273 | stream_putl(s, zrule->action.table); | |
1274 | stream_putl(s, zrule->ifindex); | |
1275 | ||
1276 | /* Put length at the first point of the stream. */ | |
1277 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1278 | ||
1279 | return 0; | |
1280 | } | |
1281 | ||
7ea7b86e | 1282 | bool zapi_route_notify_decode(struct stream *s, struct prefix *p, |
28610f7e | 1283 | uint32_t *tableid, |
7ea7b86e DS |
1284 | enum zapi_route_notify_owner *note) |
1285 | { | |
7a1eb44b DS |
1286 | uint32_t t; |
1287 | ||
7ea7b86e DS |
1288 | STREAM_GET(note, s, sizeof(*note)); |
1289 | ||
1290 | STREAM_GETC(s, p->family); | |
1291 | STREAM_GETC(s, p->prefixlen); | |
996c9314 | 1292 | STREAM_GET(&p->u.prefix, s, prefix_blen(p)); |
7a1eb44b DS |
1293 | STREAM_GETL(s, t); |
1294 | ||
1295 | *tableid = t; | |
7ea7b86e DS |
1296 | |
1297 | return true; | |
1298 | ||
1299 | stream_failure: | |
1300 | return false; | |
1301 | } | |
1302 | ||
b6c5d343 DS |
1303 | bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno, |
1304 | uint32_t *priority, uint32_t *unique, | |
1305 | ifindex_t *ifindex, | |
1306 | enum zapi_rule_notify_owner *note) | |
1307 | { | |
1308 | uint32_t prio, seq, uni; | |
1309 | ifindex_t ifi; | |
1310 | ||
1311 | STREAM_GET(note, s, sizeof(*note)); | |
1312 | ||
1313 | STREAM_GETL(s, seq); | |
1314 | STREAM_GETL(s, prio); | |
1315 | STREAM_GETL(s, uni); | |
1316 | STREAM_GETL(s, ifi); | |
1317 | ||
1318 | if (zclient_debug) | |
1319 | zlog_debug("%s: %u %u %u %u", __PRETTY_FUNCTION__, | |
1320 | seq, prio, uni, ifi); | |
1321 | *seqno = seq; | |
1322 | *priority = prio; | |
1323 | *unique = uni; | |
1324 | *ifindex = ifi; | |
1325 | ||
1326 | return true; | |
1327 | ||
1328 | stream_failure: | |
1329 | return false; | |
1330 | } | |
1331 | ||
425bdd6b PG |
1332 | bool zapi_ipset_notify_decode(struct stream *s, |
1333 | uint32_t *unique, | |
1334 | enum zapi_ipset_notify_owner *note) | |
1335 | { | |
1336 | uint32_t uni; | |
1337 | ||
1338 | STREAM_GET(note, s, sizeof(*note)); | |
1339 | ||
1340 | STREAM_GETL(s, uni); | |
1341 | ||
1342 | if (zclient_debug) | |
1343 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1344 | *unique = uni; | |
1345 | ||
1346 | return true; | |
1347 | ||
1348 | stream_failure: | |
1349 | return false; | |
1350 | } | |
1351 | ||
1352 | bool zapi_ipset_entry_notify_decode(struct stream *s, | |
1353 | uint32_t *unique, | |
1354 | char *ipset_name, | |
1355 | enum zapi_ipset_entry_notify_owner *note) | |
1356 | { | |
1357 | uint32_t uni; | |
1358 | ||
1359 | STREAM_GET(note, s, sizeof(*note)); | |
1360 | ||
1361 | STREAM_GETL(s, uni); | |
1362 | ||
1363 | STREAM_GET(ipset_name, s, | |
1364 | ZEBRA_IPSET_NAME_SIZE); | |
1365 | ||
1366 | if (zclient_debug) | |
1367 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1368 | *unique = uni; | |
1369 | ||
1370 | return true; | |
1371 | ||
1372 | stream_failure: | |
1373 | return false; | |
1374 | } | |
1375 | ||
4a749e2c DS |
1376 | struct nexthop *nexthop_from_zapi_nexthop(struct zapi_nexthop *znh) |
1377 | { | |
1378 | struct nexthop *n = nexthop_new(); | |
1379 | ||
1380 | n->type = znh->type; | |
4a7371e9 | 1381 | n->vrf_id = znh->vrf_id; |
4a749e2c DS |
1382 | n->ifindex = znh->ifindex; |
1383 | n->gate = znh->gate; | |
1384 | ||
1385 | /* | |
960035b2 | 1386 | * This function currently handles labels |
4a749e2c | 1387 | */ |
960035b2 PZ |
1388 | if (znh->label_num) { |
1389 | nexthop_add_labels(n, ZEBRA_LSP_NONE, znh->label_num, | |
1390 | znh->labels); | |
1391 | } | |
4a749e2c DS |
1392 | |
1393 | return n; | |
1394 | } | |
1395 | ||
1396 | bool zapi_nexthop_update_decode(struct stream *s, struct zapi_route *nhr) | |
1397 | { | |
1398 | uint32_t i; | |
1399 | ||
1400 | memset(nhr, 0, sizeof(*nhr)); | |
1401 | ||
1402 | STREAM_GETW(s, nhr->prefix.family); | |
1403 | STREAM_GETC(s, nhr->prefix.prefixlen); | |
996c9314 | 1404 | switch (nhr->prefix.family) { |
4a749e2c DS |
1405 | case AF_INET: |
1406 | STREAM_GET(&nhr->prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1407 | break; | |
1408 | case AF_INET6: | |
1409 | STREAM_GET(&nhr->prefix.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1410 | break; | |
1411 | default: | |
1412 | break; | |
1413 | } | |
1414 | ||
05dd5aaf DS |
1415 | STREAM_GETC(s, nhr->type); |
1416 | STREAM_GETW(s, nhr->instance); | |
4a749e2c DS |
1417 | STREAM_GETC(s, nhr->distance); |
1418 | STREAM_GETL(s, nhr->metric); | |
1419 | STREAM_GETC(s, nhr->nexthop_num); | |
1420 | ||
996c9314 | 1421 | for (i = 0; i < nhr->nexthop_num; i++) { |
4a749e2c DS |
1422 | STREAM_GETC(s, nhr->nexthops[i].type); |
1423 | switch (nhr->nexthops[i].type) { | |
1424 | case NEXTHOP_TYPE_IPV4: | |
1425 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
996c9314 LB |
1426 | STREAM_GET(&nhr->nexthops[i].gate.ipv4.s_addr, s, |
1427 | IPV4_MAX_BYTELEN); | |
4a749e2c DS |
1428 | STREAM_GETL(s, nhr->nexthops[i].ifindex); |
1429 | break; | |
1430 | case NEXTHOP_TYPE_IFINDEX: | |
1431 | STREAM_GETL(s, nhr->nexthops[i].ifindex); | |
1432 | break; | |
1433 | case NEXTHOP_TYPE_IPV6: | |
1434 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
996c9314 LB |
1435 | STREAM_GET(&nhr->nexthops[i].gate.ipv6, s, |
1436 | IPV6_MAX_BYTELEN); | |
4a749e2c DS |
1437 | STREAM_GETL(s, nhr->nexthops[i].ifindex); |
1438 | break; | |
1439 | case NEXTHOP_TYPE_BLACKHOLE: | |
1440 | break; | |
1441 | } | |
0acf4df0 DS |
1442 | STREAM_GETC(s, nhr->nexthops[i].label_num); |
1443 | if (nhr->nexthops[i].label_num > MPLS_MAX_LABELS) { | |
1444 | zlog_warn("%s: invalid number of MPLS labels (%u)", | |
1445 | __func__, nhr->nexthops[i].label_num); | |
1446 | return false; | |
1447 | } | |
1448 | if (nhr->nexthops[i].label_num) | |
1449 | STREAM_GET(&nhr->nexthops[i].labels[0], s, | |
1450 | nhr->nexthops[i].label_num | |
1451 | * sizeof(mpls_label_t)); | |
4a749e2c DS |
1452 | } |
1453 | ||
1454 | return true; | |
1455 | stream_failure: | |
1456 | return false; | |
1457 | } | |
1458 | ||
d62a17ae | 1459 | /* |
0a589359 | 1460 | * send a ZEBRA_REDISTRIBUTE_ADD or ZEBRA_REDISTRIBUTE_DELETE |
1461 | * for the route type (ZEBRA_ROUTE_KERNEL etc.). The zebra server will | |
d62a17ae | 1462 | * then set/unset redist[type] in the client handle (a struct zserv) for the |
0a589359 | 1463 | * sending client |
1464 | */ | |
d62a17ae | 1465 | int zebra_redistribute_send(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 1466 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 1467 | { |
d62a17ae | 1468 | struct stream *s; |
1469 | ||
1470 | s = zclient->obuf; | |
1471 | stream_reset(s); | |
1472 | ||
1473 | zclient_create_header(s, command, vrf_id); | |
1474 | stream_putc(s, afi); | |
1475 | stream_putc(s, type); | |
1476 | stream_putw(s, instance); | |
1477 | ||
1478 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1479 | ||
1480 | return zclient_send_message(zclient); | |
718e3744 | 1481 | } |
1482 | ||
d9178828 | 1483 | /* Get prefix in ZServ format; family should be filled in on prefix */ |
d62a17ae | 1484 | static void zclient_stream_get_prefix(struct stream *s, struct prefix *p) |
d9178828 | 1485 | { |
d62a17ae | 1486 | size_t plen = prefix_blen(p); |
d7c0a89a | 1487 | uint8_t c; |
d62a17ae | 1488 | p->prefixlen = 0; |
1489 | ||
1490 | if (plen == 0) | |
1491 | return; | |
1492 | ||
1493 | stream_get(&p->u.prefix, s, plen); | |
ec93aa12 | 1494 | STREAM_GETC(s, c); |
d62a17ae | 1495 | p->prefixlen = MIN(plen * 8, c); |
ec93aa12 DS |
1496 | |
1497 | stream_failure: | |
1498 | return; | |
d9178828 PJ |
1499 | } |
1500 | ||
18a6dce6 | 1501 | /* Router-id update from zebra daemon. */ |
d62a17ae | 1502 | void zebra_router_id_update_read(struct stream *s, struct prefix *rid) |
18a6dce6 | 1503 | { |
d62a17ae | 1504 | /* Fetch interface address. */ |
ec93aa12 | 1505 | STREAM_GETC(s, rid->family); |
d62a17ae | 1506 | |
1507 | zclient_stream_get_prefix(s, rid); | |
ec93aa12 DS |
1508 | |
1509 | stream_failure: | |
1510 | return; | |
18a6dce6 | 1511 | } |
1512 | ||
718e3744 | 1513 | /* Interface addition from zebra daemon. */ |
d62a17ae | 1514 | /* |
0a589359 | 1515 | * The format of the message sent with type ZEBRA_INTERFACE_ADD or |
1516 | * ZEBRA_INTERFACE_DELETE from zebra to the client is: | |
1517 | * 0 1 2 3 | |
1518 | * 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 | 1519 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1520 | * | ifname | | |
1521 | * | | | |
1522 | * | | | |
1523 | * | | | |
1524 | * | | | |
1525 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1526 | * | ifindex | |
1527 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1528 | * | status | | |
0a589359 | 1529 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1530 | * | if_flags | |
c77d4546 | 1531 | * | | |
0a589359 | 1532 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1533 | * | metric | |
1534 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2d7f0d76 DS |
1535 | * | speed | |
1536 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1537 | * | ifmtu | |
1538 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1539 | * | ifmtu6 | | |
1540 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1541 | * | bandwidth | | |
1542 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1543 | * | Link Layer Type | | |
0a589359 | 1544 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1545 | * | Harware Address Length | |
0a589359 | 1546 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1547 | * | Hardware Address if HW lenght different from 0 | |
1548 | * | ... max INTERFACE_HWADDR_MAX | | |
0a589359 | 1549 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1550 | * | Link_params? | Whether a link-params follows: 1 or 0. |
0a589359 | 1551 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1552 | * | Link_params 0 or 1 INTERFACE_LINK_PARAMS_SIZE sized | |
1553 | * | .... (struct if_link_params). | | |
0a589359 | 1554 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1555 | */ | |
1556 | ||
d62a17ae | 1557 | static void zclient_vrf_add(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1558 | { |
d62a17ae | 1559 | struct vrf *vrf; |
1560 | char vrfname_tmp[VRF_NAMSIZ]; | |
1561 | struct vrf_data data; | |
1892f15e | 1562 | |
d62a17ae | 1563 | stream_get(&data, zclient->ibuf, sizeof(struct vrf_data)); |
1564 | /* Read interface name. */ | |
1565 | stream_get(vrfname_tmp, zclient->ibuf, VRF_NAMSIZ); | |
1892f15e | 1566 | |
d62a17ae | 1567 | /* Lookup/create vrf by vrf_id. */ |
1568 | vrf = vrf_get(vrf_id, vrfname_tmp); | |
4691b65a PG |
1569 | vrf->data.l.table_id = data.l.table_id; |
1570 | memcpy(vrf->data.l.netns_name, data.l.netns_name, NS_NAMSIZ); | |
d62a17ae | 1571 | vrf_enable(vrf); |
1892f15e DS |
1572 | } |
1573 | ||
d62a17ae | 1574 | static void zclient_vrf_delete(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1575 | { |
d62a17ae | 1576 | struct vrf *vrf; |
1892f15e | 1577 | |
d62a17ae | 1578 | /* Lookup vrf by vrf_id. */ |
1579 | vrf = vrf_lookup_by_id(vrf_id); | |
1892f15e | 1580 | |
d62a17ae | 1581 | /* |
1582 | * If a routing protocol doesn't know about a | |
1583 | * vrf that is about to be deleted. There is | |
1584 | * no point in attempting to delete it. | |
1585 | */ | |
1586 | if (!vrf) | |
1587 | return; | |
beef1990 | 1588 | |
d62a17ae | 1589 | vrf_delete(vrf); |
1892f15e DS |
1590 | } |
1591 | ||
d62a17ae | 1592 | struct interface *zebra_interface_add_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1593 | { |
d62a17ae | 1594 | struct interface *ifp; |
1595 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
718e3744 | 1596 | |
d62a17ae | 1597 | /* Read interface name. */ |
1598 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
718e3744 | 1599 | |
d62a17ae | 1600 | /* Lookup/create interface by name. */ |
bcc24579 | 1601 | ifp = if_get_by_name(ifname_tmp, vrf_id, 0); |
718e3744 | 1602 | |
d62a17ae | 1603 | zebra_interface_if_set_value(s, ifp); |
718e3744 | 1604 | |
d62a17ae | 1605 | return ifp; |
718e3744 | 1606 | } |
1607 | ||
d62a17ae | 1608 | /* |
0a589359 | 1609 | * Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN) |
1610 | * from zebra server. The format of this message is the same as | |
1611 | * that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE (see | |
1612 | * comments for zebra_interface_add_read), except that no sockaddr_dl | |
1613 | * is sent at the tail of the message. | |
1614 | */ | |
d62a17ae | 1615 | struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1616 | { |
d62a17ae | 1617 | struct interface *ifp; |
1618 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
1619 | ||
1620 | /* Read interface name. */ | |
1621 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
1622 | ||
1623 | /* Lookup this by interface index. */ | |
bcc24579 | 1624 | ifp = if_lookup_by_name(ifname_tmp, vrf_id); |
d62a17ae | 1625 | if (ifp == NULL) { |
1626 | zlog_warn("INTERFACE_STATE: Cannot find IF %s in VRF %d", | |
1627 | ifname_tmp, vrf_id); | |
1628 | return NULL; | |
1629 | } | |
1630 | ||
1631 | zebra_interface_if_set_value(s, ifp); | |
1632 | ||
1633 | return ifp; | |
718e3744 | 1634 | } |
1635 | ||
d62a17ae | 1636 | static void link_params_set_value(struct stream *s, struct if_link_params *iflp) |
16f1b9ee OD |
1637 | { |
1638 | ||
d62a17ae | 1639 | if (iflp == NULL) |
1640 | return; | |
1641 | ||
1642 | iflp->lp_status = stream_getl(s); | |
1643 | iflp->te_metric = stream_getl(s); | |
1644 | iflp->max_bw = stream_getf(s); | |
1645 | iflp->max_rsv_bw = stream_getf(s); | |
1646 | uint32_t bwclassnum = stream_getl(s); | |
1647 | { | |
1648 | unsigned int i; | |
1649 | for (i = 0; i < bwclassnum && i < MAX_CLASS_TYPE; i++) | |
1650 | iflp->unrsv_bw[i] = stream_getf(s); | |
1651 | if (i < bwclassnum) | |
1652 | zlog_err( | |
1653 | "%s: received %d > %d (MAX_CLASS_TYPE) bw entries" | |
1654 | " - outdated library?", | |
1655 | __func__, bwclassnum, MAX_CLASS_TYPE); | |
1656 | } | |
1657 | iflp->admin_grp = stream_getl(s); | |
1658 | iflp->rmt_as = stream_getl(s); | |
1659 | iflp->rmt_ip.s_addr = stream_get_ipv4(s); | |
1660 | ||
1661 | iflp->av_delay = stream_getl(s); | |
1662 | iflp->min_delay = stream_getl(s); | |
1663 | iflp->max_delay = stream_getl(s); | |
1664 | iflp->delay_var = stream_getl(s); | |
1665 | ||
1666 | iflp->pkt_loss = stream_getf(s); | |
1667 | iflp->res_bw = stream_getf(s); | |
1668 | iflp->ava_bw = stream_getf(s); | |
1669 | iflp->use_bw = stream_getf(s); | |
16f1b9ee OD |
1670 | } |
1671 | ||
d62a17ae | 1672 | struct interface *zebra_interface_link_params_read(struct stream *s) |
16f1b9ee | 1673 | { |
d62a17ae | 1674 | struct if_link_params *iflp; |
1675 | ifindex_t ifindex; | |
c28e5b2a | 1676 | |
d62a17ae | 1677 | assert(s); |
c28e5b2a | 1678 | |
d62a17ae | 1679 | ifindex = stream_getl(s); |
16f1b9ee | 1680 | |
d62a17ae | 1681 | struct interface *ifp = if_lookup_by_index(ifindex, VRF_DEFAULT); |
16f1b9ee | 1682 | |
d62a17ae | 1683 | if (ifp == NULL) { |
1684 | zlog_err("%s: unknown ifindex %u, shouldn't happen", __func__, | |
1685 | ifindex); | |
1686 | return NULL; | |
1687 | } | |
16f1b9ee | 1688 | |
d62a17ae | 1689 | if ((iflp = if_link_params_get(ifp)) == NULL) |
1690 | return NULL; | |
16f1b9ee | 1691 | |
d62a17ae | 1692 | link_params_set_value(s, iflp); |
16f1b9ee | 1693 | |
d62a17ae | 1694 | return ifp; |
16f1b9ee OD |
1695 | } |
1696 | ||
d62a17ae | 1697 | void zebra_interface_if_set_value(struct stream *s, struct interface *ifp) |
16f1b9ee | 1698 | { |
d7c0a89a | 1699 | uint8_t link_params_status = 0; |
d62a17ae | 1700 | |
1701 | /* Read interface's index. */ | |
ff880b78 | 1702 | if_set_index(ifp, stream_getl(s)); |
d62a17ae | 1703 | ifp->status = stream_getc(s); |
1704 | ||
1705 | /* Read interface's value. */ | |
1706 | ifp->flags = stream_getq(s); | |
1707 | ifp->ptm_enable = stream_getc(s); | |
1708 | ifp->ptm_status = stream_getc(s); | |
1709 | ifp->metric = stream_getl(s); | |
1710 | ifp->speed = stream_getl(s); | |
1711 | ifp->mtu = stream_getl(s); | |
1712 | ifp->mtu6 = stream_getl(s); | |
1713 | ifp->bandwidth = stream_getl(s); | |
1714 | ifp->ll_type = stream_getl(s); | |
1715 | ifp->hw_addr_len = stream_getl(s); | |
1716 | if (ifp->hw_addr_len) | |
1717 | stream_get(ifp->hw_addr, s, | |
1718 | MIN(ifp->hw_addr_len, INTERFACE_HWADDR_MAX)); | |
1719 | ||
1720 | /* Read Traffic Engineering status */ | |
1721 | link_params_status = stream_getc(s); | |
1722 | /* Then, Traffic Engineering parameters if any */ | |
1723 | if (link_params_status) { | |
1724 | struct if_link_params *iflp = if_link_params_get(ifp); | |
1725 | link_params_set_value(s, iflp); | |
1726 | } | |
16f1b9ee OD |
1727 | } |
1728 | ||
d62a17ae | 1729 | size_t zebra_interface_link_params_write(struct stream *s, |
1730 | struct interface *ifp) | |
16f1b9ee | 1731 | { |
d62a17ae | 1732 | size_t w; |
1733 | struct if_link_params *iflp; | |
1734 | int i; | |
16f1b9ee | 1735 | |
d62a17ae | 1736 | if (s == NULL || ifp == NULL || ifp->link_params == NULL) |
1737 | return 0; | |
16f1b9ee | 1738 | |
d62a17ae | 1739 | iflp = ifp->link_params; |
1740 | w = 0; | |
16f1b9ee | 1741 | |
d62a17ae | 1742 | w += stream_putl(s, iflp->lp_status); |
16f1b9ee | 1743 | |
d62a17ae | 1744 | w += stream_putl(s, iflp->te_metric); |
1745 | w += stream_putf(s, iflp->max_bw); | |
1746 | w += stream_putf(s, iflp->max_rsv_bw); | |
16f1b9ee | 1747 | |
d62a17ae | 1748 | w += stream_putl(s, MAX_CLASS_TYPE); |
1749 | for (i = 0; i < MAX_CLASS_TYPE; i++) | |
1750 | w += stream_putf(s, iflp->unrsv_bw[i]); | |
16f1b9ee | 1751 | |
d62a17ae | 1752 | w += stream_putl(s, iflp->admin_grp); |
1753 | w += stream_putl(s, iflp->rmt_as); | |
1754 | w += stream_put_in_addr(s, &iflp->rmt_ip); | |
16f1b9ee | 1755 | |
d62a17ae | 1756 | w += stream_putl(s, iflp->av_delay); |
1757 | w += stream_putl(s, iflp->min_delay); | |
1758 | w += stream_putl(s, iflp->max_delay); | |
1759 | w += stream_putl(s, iflp->delay_var); | |
16f1b9ee | 1760 | |
d62a17ae | 1761 | w += stream_putf(s, iflp->pkt_loss); |
1762 | w += stream_putf(s, iflp->res_bw); | |
1763 | w += stream_putf(s, iflp->ava_bw); | |
1764 | w += stream_putf(s, iflp->use_bw); | |
16f1b9ee | 1765 | |
d62a17ae | 1766 | return w; |
16f1b9ee OD |
1767 | } |
1768 | ||
1769 | /* | |
0a589359 | 1770 | * format of message for address additon is: |
1771 | * 0 | |
1772 | * 0 1 2 3 4 5 6 7 | |
1773 | * +-+-+-+-+-+-+-+-+ | |
1774 | * | type | ZEBRA_INTERFACE_ADDRESS_ADD or | |
1775 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_ADDRES_DELETE | |
1776 | * | | | |
1777 | * + + | |
1778 | * | ifindex | | |
1779 | * + + | |
1780 | * | | | |
1781 | * + + | |
1782 | * | | | |
1783 | * +-+-+-+-+-+-+-+-+ | |
1784 | * | ifc_flags | flags for connected address | |
1785 | * +-+-+-+-+-+-+-+-+ | |
1786 | * | addr_family | | |
1787 | * +-+-+-+-+-+-+-+-+ | |
1788 | * | addr... | | |
1789 | * : : | |
1790 | * | | | |
1791 | * +-+-+-+-+-+-+-+-+ | |
1792 | * | addr_len | len of addr. E.g., addr_len = 4 for ipv4 addrs. | |
1793 | * +-+-+-+-+-+-+-+-+ | |
1794 | * | daddr.. | | |
1795 | * : : | |
1796 | * | | | |
1797 | * +-+-+-+-+-+-+-+-+ | |
0a589359 | 1798 | */ |
1799 | ||
d62a17ae | 1800 | static int memconstant(const void *s, int c, size_t n) |
3fb9cd6e | 1801 | { |
d7c0a89a | 1802 | const uint8_t *p = s; |
3fb9cd6e | 1803 | |
d62a17ae | 1804 | while (n-- > 0) |
1805 | if (*p++ != c) | |
1806 | return 0; | |
1807 | return 1; | |
3fb9cd6e | 1808 | } |
1809 | ||
d5a5c8f0 | 1810 | |
d62a17ae | 1811 | struct connected *zebra_interface_address_read(int type, struct stream *s, |
1812 | vrf_id_t vrf_id) | |
718e3744 | 1813 | { |
d62a17ae | 1814 | ifindex_t ifindex; |
1815 | struct interface *ifp; | |
1816 | struct connected *ifc; | |
1817 | struct prefix p, d, *dp; | |
1818 | int plen; | |
d7c0a89a | 1819 | uint8_t ifc_flags; |
d62a17ae | 1820 | |
1821 | memset(&p, 0, sizeof(p)); | |
1822 | memset(&d, 0, sizeof(d)); | |
1823 | ||
1824 | /* Get interface index. */ | |
1825 | ifindex = stream_getl(s); | |
1826 | ||
1827 | /* Lookup index. */ | |
1828 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1829 | if (ifp == NULL) { | |
1830 | zlog_warn("INTERFACE_ADDRESS_%s: Cannot find IF %u in VRF %d", | |
1831 | (type == ZEBRA_INTERFACE_ADDRESS_ADD) ? "ADD" : "DEL", | |
1832 | ifindex, vrf_id); | |
1833 | return NULL; | |
1834 | } | |
1835 | ||
1836 | /* Fetch flag. */ | |
1837 | ifc_flags = stream_getc(s); | |
1838 | ||
1839 | /* Fetch interface address. */ | |
1840 | d.family = p.family = stream_getc(s); | |
1841 | plen = prefix_blen(&d); | |
1842 | ||
1843 | zclient_stream_get_prefix(s, &p); | |
1844 | ||
1845 | /* Fetch destination address. */ | |
1846 | stream_get(&d.u.prefix, s, plen); | |
1847 | ||
1848 | /* N.B. NULL destination pointers are encoded as all zeroes */ | |
1849 | dp = memconstant(&d.u.prefix, 0, plen) ? NULL : &d; | |
1850 | ||
1851 | if (type == ZEBRA_INTERFACE_ADDRESS_ADD) { | |
1852 | ifc = connected_lookup_prefix_exact(ifp, &p); | |
1853 | if (!ifc) { | |
1854 | /* N.B. NULL destination pointers are encoded as all | |
1855 | * zeroes */ | |
1856 | ifc = connected_add_by_prefix(ifp, &p, dp); | |
1857 | } | |
1858 | if (ifc) { | |
1859 | ifc->flags = ifc_flags; | |
1860 | if (ifc->destination) | |
1861 | ifc->destination->prefixlen = | |
1862 | ifc->address->prefixlen; | |
1863 | else if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { | |
1864 | /* carp interfaces on OpenBSD with 0.0.0.0/0 as | |
1865 | * "peer" */ | |
1866 | char buf[PREFIX_STRLEN]; | |
1867 | zlog_warn( | |
1868 | "warning: interface %s address %s " | |
1869 | "with peer flag set, but no peer address!", | |
9d303b37 DL |
1870 | ifp->name, prefix2str(ifc->address, buf, |
1871 | sizeof buf)); | |
d62a17ae | 1872 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); |
1873 | } | |
1874 | } | |
1875 | } else { | |
1876 | assert(type == ZEBRA_INTERFACE_ADDRESS_DELETE); | |
1877 | ifc = connected_delete_by_prefix(ifp, &p); | |
1878 | } | |
1879 | ||
1880 | return ifc; | |
718e3744 | 1881 | } |
0a589359 | 1882 | |
a80beece DS |
1883 | /* |
1884 | * format of message for neighbor connected address is: | |
1885 | * 0 | |
1886 | * 0 1 2 3 4 5 6 7 | |
1887 | * +-+-+-+-+-+-+-+-+ | |
1888 | * | type | ZEBRA_INTERFACE_NBR_ADDRESS_ADD or | |
1889 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_NBR_ADDRES_DELETE | |
1890 | * | | | |
1891 | * + + | |
1892 | * | ifindex | | |
1893 | * + + | |
1894 | * | | | |
1895 | * + + | |
1896 | * | | | |
1897 | * +-+-+-+-+-+-+-+-+ | |
1898 | * | addr_family | | |
1899 | * +-+-+-+-+-+-+-+-+ | |
1900 | * | addr... | | |
1901 | * : : | |
1902 | * | | | |
1903 | * +-+-+-+-+-+-+-+-+ | |
1904 | * | addr_len | len of addr. | |
1905 | * +-+-+-+-+-+-+-+-+ | |
1906 | */ | |
1907 | struct nbr_connected * | |
d62a17ae | 1908 | zebra_interface_nbr_address_read(int type, struct stream *s, vrf_id_t vrf_id) |
a80beece | 1909 | { |
d62a17ae | 1910 | unsigned int ifindex; |
1911 | struct interface *ifp; | |
1912 | struct prefix p; | |
1913 | struct nbr_connected *ifc; | |
1914 | ||
1915 | /* Get interface index. */ | |
1916 | ifindex = stream_getl(s); | |
1917 | ||
1918 | /* Lookup index. */ | |
1919 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1920 | if (ifp == NULL) { | |
1921 | zlog_warn("INTERFACE_NBR_%s: Cannot find IF %u in VRF %d", | |
1922 | (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) ? "ADD" | |
1923 | : "DELETE", | |
1924 | ifindex, vrf_id); | |
1925 | return NULL; | |
1926 | } | |
1927 | ||
1928 | p.family = stream_getc(s); | |
1929 | stream_get(&p.u.prefix, s, prefix_blen(&p)); | |
1930 | p.prefixlen = stream_getc(s); | |
1931 | ||
1932 | if (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) { | |
1933 | /* Currently only supporting P2P links, so any new RA source | |
1934 | address is | |
1935 | considered as the replacement of the previously learnt | |
1936 | Link-Local address. */ | |
1937 | if (!(ifc = listnode_head(ifp->nbr_connected))) { | |
1938 | ifc = nbr_connected_new(); | |
1939 | ifc->address = prefix_new(); | |
1940 | ifc->ifp = ifp; | |
1941 | listnode_add(ifp->nbr_connected, ifc); | |
1942 | } | |
1943 | ||
1944 | prefix_copy(ifc->address, &p); | |
1945 | } else { | |
1946 | assert(type == ZEBRA_INTERFACE_NBR_ADDRESS_DELETE); | |
1947 | ||
1948 | ifc = nbr_connected_check(ifp, &p); | |
1949 | if (ifc) | |
1950 | listnode_delete(ifp->nbr_connected, ifc); | |
1951 | } | |
1952 | ||
1953 | return ifc; | |
a80beece | 1954 | } |
6b0655a2 | 1955 | |
d62a17ae | 1956 | struct interface *zebra_interface_vrf_update_read(struct stream *s, |
1957 | vrf_id_t vrf_id, | |
1958 | vrf_id_t *new_vrf_id) | |
c8e264b6 | 1959 | { |
d62a17ae | 1960 | unsigned int ifindex; |
1961 | struct interface *ifp; | |
a9ff90c4 | 1962 | vrf_id_t new_id; |
d62a17ae | 1963 | |
1964 | /* Get interface index. */ | |
1965 | ifindex = stream_getl(s); | |
1966 | ||
1967 | /* Lookup interface. */ | |
1968 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1969 | if (ifp == NULL) { | |
1970 | zlog_warn("INTERFACE_VRF_UPDATE: Cannot find IF %u in VRF %d", | |
1971 | ifindex, vrf_id); | |
1972 | return NULL; | |
1973 | } | |
1974 | ||
1975 | /* Fetch new VRF Id. */ | |
1976 | new_id = stream_getw(s); | |
1977 | ||
1978 | *new_vrf_id = new_id; | |
1979 | return ifp; | |
c8e264b6 | 1980 | } |
5c7ef8dc | 1981 | |
1982 | /* filter unwanted messages until the expected one arrives */ | |
d62a17ae | 1983 | static int zclient_read_sync_response(struct zclient *zclient, |
d7c0a89a | 1984 | uint16_t expected_cmd) |
5c7ef8dc | 1985 | { |
d62a17ae | 1986 | struct stream *s; |
d7c0a89a QY |
1987 | uint16_t size = -1; |
1988 | uint8_t marker; | |
1989 | uint8_t version; | |
d62a17ae | 1990 | vrf_id_t vrf_id; |
d7c0a89a | 1991 | uint16_t cmd; |
d62a17ae | 1992 | fd_set readfds; |
1993 | int ret; | |
1994 | ||
1995 | ret = 0; | |
1996 | cmd = expected_cmd + 1; | |
1997 | while (ret == 0 && cmd != expected_cmd) { | |
1998 | s = zclient->ibuf; | |
1999 | stream_reset(s); | |
2000 | ||
2001 | /* wait until response arrives */ | |
2002 | FD_ZERO(&readfds); | |
2003 | FD_SET(zclient->sock, &readfds); | |
2004 | select(zclient->sock + 1, &readfds, NULL, NULL, NULL); | |
2005 | if (!FD_ISSET(zclient->sock, &readfds)) | |
2006 | continue; | |
2007 | /* read response */ | |
2008 | ret = zclient_read_header(s, zclient->sock, &size, &marker, | |
2009 | &version, &vrf_id, &cmd); | |
2010 | if (zclient_debug) | |
2011 | zlog_debug("%s: Response (%d bytes) received", __func__, | |
2012 | size); | |
2013 | } | |
2014 | if (ret != 0) { | |
2015 | zlog_err("%s: Invalid Sync Message Reply", __func__); | |
2016 | return -1; | |
2017 | } | |
2018 | ||
2019 | return 0; | |
5c7ef8dc | 2020 | } |
fea12efb | 2021 | /** |
2022 | * Connect to label manager in a syncronous way | |
2023 | * | |
2024 | * It first writes the request to zcient output buffer and then | |
2025 | * immediately reads the answer from the input buffer. | |
2026 | * | |
2027 | * @param zclient Zclient used to connect to label manager (zebra) | |
2028 | * @result Result of response | |
2029 | */ | |
d62a17ae | 2030 | int lm_label_manager_connect(struct zclient *zclient) |
fea12efb | 2031 | { |
d62a17ae | 2032 | int ret; |
2033 | struct stream *s; | |
d7c0a89a | 2034 | uint8_t result; |
d62a17ae | 2035 | |
2036 | if (zclient_debug) | |
2037 | zlog_debug("Connecting to Label Manager"); | |
2038 | ||
2039 | if (zclient->sock < 0) | |
2040 | return -1; | |
2041 | ||
2042 | /* send request */ | |
2043 | s = zclient->obuf; | |
2044 | stream_reset(s); | |
2045 | zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, VRF_DEFAULT); | |
2046 | ||
2047 | /* proto */ | |
2048 | stream_putc(s, zclient->redist_default); | |
2049 | /* instance */ | |
2050 | stream_putw(s, zclient->instance); | |
2051 | ||
2052 | /* Put length at the first point of the stream. */ | |
2053 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2054 | ||
2055 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2056 | if (ret < 0) { | |
2057 | zlog_err("%s: can't write to zclient->sock", __func__); | |
2058 | close(zclient->sock); | |
2059 | zclient->sock = -1; | |
2060 | return -1; | |
2061 | } | |
2062 | if (ret == 0) { | |
2063 | zlog_err("%s: zclient->sock connection closed", __func__); | |
2064 | close(zclient->sock); | |
2065 | zclient->sock = -1; | |
2066 | return -1; | |
2067 | } | |
2068 | if (zclient_debug) | |
2069 | zlog_debug("%s: Label manager connect request (%d bytes) sent", | |
2070 | __func__, ret); | |
2071 | ||
2072 | /* read response */ | |
2073 | if (zclient_read_sync_response(zclient, ZEBRA_LABEL_MANAGER_CONNECT) | |
2074 | != 0) | |
2075 | return -1; | |
2076 | ||
2077 | /* result */ | |
2078 | s = zclient->ibuf; | |
2079 | result = stream_getc(s); | |
2080 | if (zclient_debug) | |
2081 | zlog_debug( | |
2082 | "%s: Label Manager connect response received, result %u", | |
2083 | __func__, result); | |
2084 | ||
2085 | return (int)result; | |
fea12efb | 2086 | } |
2087 | ||
955bfd98 PZ |
2088 | /* |
2089 | * Asynchronous label chunk request | |
2090 | * | |
2091 | * @param zclient Zclient used to connect to label manager (zebra) | |
2092 | * @param keep Avoid garbage collection | |
2093 | * @param chunk_size Amount of labels requested | |
2094 | * @result 0 on success, -1 otherwise | |
2095 | */ | |
2096 | int zclient_send_get_label_chunk( | |
2097 | struct zclient *zclient, | |
2098 | uint8_t keep, | |
2099 | uint32_t chunk_size) | |
2100 | { | |
2101 | struct stream *s; | |
2102 | ||
2103 | if (zclient_debug) | |
2104 | zlog_debug("Getting Label Chunk"); | |
2105 | ||
2106 | if (zclient->sock < 0) | |
2107 | return -1; | |
2108 | ||
2109 | s = zclient->obuf; | |
2110 | stream_reset(s); | |
2111 | ||
2112 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
2113 | stream_putc(s, keep); | |
2114 | stream_putl(s, chunk_size); | |
2115 | ||
2116 | /* Put length at the first point of the stream. */ | |
2117 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2118 | ||
2119 | return zclient_send_message(zclient); | |
2120 | } | |
2121 | ||
fea12efb | 2122 | /** |
2123 | * Function to request a label chunk in a syncronous way | |
2124 | * | |
2125 | * It first writes the request to zlcient output buffer and then | |
2126 | * immediately reads the answer from the input buffer. | |
2127 | * | |
2128 | * @param zclient Zclient used to connect to label manager (zebra) | |
2129 | * @param keep Avoid garbage collection | |
2130 | * @param chunk_size Amount of labels requested | |
2131 | * @param start To write first assigned chunk label to | |
2132 | * @param end To write last assigned chunk label to | |
2133 | * @result 0 on success, -1 otherwise | |
2134 | */ | |
d7c0a89a | 2135 | int lm_get_label_chunk(struct zclient *zclient, uint8_t keep, |
d62a17ae | 2136 | uint32_t chunk_size, uint32_t *start, uint32_t *end) |
fea12efb | 2137 | { |
d62a17ae | 2138 | int ret; |
2139 | struct stream *s; | |
d7c0a89a | 2140 | uint8_t response_keep; |
d62a17ae | 2141 | |
2142 | if (zclient_debug) | |
2143 | zlog_debug("Getting Label Chunk"); | |
2144 | ||
2145 | if (zclient->sock < 0) | |
2146 | return -1; | |
2147 | ||
2148 | /* send request */ | |
2149 | s = zclient->obuf; | |
2150 | stream_reset(s); | |
2151 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
2152 | /* keep */ | |
2153 | stream_putc(s, keep); | |
2154 | /* chunk size */ | |
2155 | stream_putl(s, chunk_size); | |
2156 | /* Put length at the first point of the stream. */ | |
2157 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2158 | ||
2159 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2160 | if (ret < 0) { | |
2161 | zlog_err("%s: can't write to zclient->sock", __func__); | |
2162 | close(zclient->sock); | |
2163 | zclient->sock = -1; | |
2164 | return -1; | |
2165 | } | |
2166 | if (ret == 0) { | |
2167 | zlog_err("%s: zclient->sock connection closed", __func__); | |
2168 | close(zclient->sock); | |
2169 | zclient->sock = -1; | |
2170 | return -1; | |
2171 | } | |
2172 | if (zclient_debug) | |
2173 | zlog_debug("%s: Label chunk request (%d bytes) sent", __func__, | |
2174 | ret); | |
2175 | ||
2176 | /* read response */ | |
2177 | if (zclient_read_sync_response(zclient, ZEBRA_GET_LABEL_CHUNK) != 0) | |
2178 | return -1; | |
2179 | ||
2180 | s = zclient->ibuf; | |
2181 | /* keep */ | |
2182 | response_keep = stream_getc(s); | |
2183 | /* start and end labels */ | |
2184 | *start = stream_getl(s); | |
2185 | *end = stream_getl(s); | |
2186 | ||
2187 | /* not owning this response */ | |
2188 | if (keep != response_keep) { | |
2189 | zlog_err( | |
2190 | "%s: Invalid Label chunk: %u - %u, keeps mismatch %u != %u", | |
2191 | __func__, *start, *end, keep, response_keep); | |
2192 | } | |
2193 | /* sanity */ | |
70e98a7f DS |
2194 | if (*start > *end || *start < MPLS_LABEL_UNRESERVED_MIN |
2195 | || *end > MPLS_LABEL_UNRESERVED_MAX) { | |
d62a17ae | 2196 | zlog_err("%s: Invalid Label chunk: %u - %u", __func__, *start, |
2197 | *end); | |
2198 | return -1; | |
2199 | } | |
2200 | ||
2201 | if (zclient_debug) | |
2202 | zlog_debug("Label Chunk assign: %u - %u (%u) ", *start, *end, | |
2203 | response_keep); | |
2204 | ||
2205 | return 0; | |
fea12efb | 2206 | } |
2207 | ||
2208 | /** | |
2209 | * Function to release a label chunk | |
2210 | * | |
2211 | * @param zclient Zclient used to connect to label manager (zebra) | |
2212 | * @param start First label of chunk | |
2213 | * @param end Last label of chunk | |
2214 | * @result 0 on success, -1 otherwise | |
2215 | */ | |
d62a17ae | 2216 | int lm_release_label_chunk(struct zclient *zclient, uint32_t start, |
2217 | uint32_t end) | |
fea12efb | 2218 | { |
d62a17ae | 2219 | int ret; |
2220 | struct stream *s; | |
2221 | ||
2222 | if (zclient_debug) | |
2223 | zlog_debug("Releasing Label Chunk"); | |
2224 | ||
2225 | if (zclient->sock < 0) | |
2226 | return -1; | |
2227 | ||
2228 | /* send request */ | |
2229 | s = zclient->obuf; | |
2230 | stream_reset(s); | |
2231 | zclient_create_header(s, ZEBRA_RELEASE_LABEL_CHUNK, VRF_DEFAULT); | |
2232 | ||
2233 | /* start */ | |
2234 | stream_putl(s, start); | |
2235 | /* end */ | |
2236 | stream_putl(s, end); | |
2237 | ||
2238 | /* Put length at the first point of the stream. */ | |
2239 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2240 | ||
2241 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2242 | if (ret < 0) { | |
2243 | zlog_err("%s: can't write to zclient->sock", __func__); | |
2244 | close(zclient->sock); | |
2245 | zclient->sock = -1; | |
2246 | return -1; | |
2247 | } | |
2248 | if (ret == 0) { | |
2249 | zlog_err("%s: zclient->sock connection closed", __func__); | |
2250 | close(zclient->sock); | |
2251 | zclient->sock = -1; | |
2252 | return -1; | |
2253 | } | |
2254 | ||
2255 | return 0; | |
fea12efb | 2256 | } |
c8e264b6 | 2257 | |
75fb51c1 PG |
2258 | /** |
2259 | * Connect to table manager in a syncronous way | |
2260 | * | |
2261 | * It first writes the request to zcient output buffer and then | |
2262 | * immediately reads the answer from the input buffer. | |
2263 | * | |
2264 | * @param zclient Zclient used to connect to table manager (zebra) | |
2265 | * @result Result of response | |
2266 | */ | |
2267 | int tm_table_manager_connect(struct zclient *zclient) | |
2268 | { | |
2269 | int ret; | |
2270 | struct stream *s; | |
2271 | uint8_t result; | |
2272 | ||
2273 | if (zclient_debug) | |
2274 | zlog_debug("Connecting to Table Manager"); | |
2275 | ||
2276 | if (zclient->sock < 0) | |
2277 | return -1; | |
2278 | ||
2279 | /* send request */ | |
2280 | s = zclient->obuf; | |
2281 | stream_reset(s); | |
2282 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, VRF_DEFAULT); | |
2283 | ||
2284 | /* proto */ | |
2285 | stream_putc(s, zclient->redist_default); | |
2286 | /* instance */ | |
2287 | stream_putw(s, zclient->instance); | |
2288 | ||
2289 | /* Put length at the first point of the stream. */ | |
2290 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2291 | ||
2292 | ret = zclient_send_message(zclient); | |
2293 | if (ret < 0) | |
2294 | return -1; | |
2295 | ||
2296 | if (zclient_debug) | |
2297 | zlog_debug("%s: Table manager connect request sent", | |
2298 | __func__); | |
2299 | ||
2300 | /* read response */ | |
2301 | if (zclient_read_sync_response(zclient, ZEBRA_TABLE_MANAGER_CONNECT) | |
2302 | != 0) | |
2303 | return -1; | |
2304 | ||
2305 | /* result */ | |
2306 | s = zclient->ibuf; | |
2307 | STREAM_GETC(s, result); | |
2308 | if (zclient_debug) | |
2309 | zlog_debug( | |
2310 | "%s: Table Manager connect response received, result %u", | |
2311 | __func__, result); | |
2312 | ||
2313 | return (int)result; | |
2314 | stream_failure: | |
2315 | return 0; | |
2316 | } | |
2317 | ||
2318 | /** | |
2319 | * Function to request a table chunk in a syncronous way | |
2320 | * | |
2321 | * It first writes the request to zclient output buffer and then | |
2322 | * immediately reads the answer from the input buffer. | |
2323 | * | |
2324 | * @param zclient Zclient used to connect to table manager (zebra) | |
2325 | * @param chunk_size Amount of table requested | |
2326 | * @param start to write first assigned chunk table RT ID to | |
2327 | * @param end To write last assigned chunk table RT ID to | |
2328 | * @result 0 on success, -1 otherwise | |
2329 | */ | |
2330 | int tm_get_table_chunk(struct zclient *zclient, uint32_t chunk_size, | |
2331 | uint32_t *start, uint32_t *end) | |
2332 | { | |
2333 | int ret; | |
2334 | struct stream *s; | |
2335 | ||
2336 | if (zclient_debug) | |
2337 | zlog_debug("Getting Table Chunk"); | |
2338 | ||
2339 | if (zclient->sock < 0) | |
2340 | return -1; | |
2341 | ||
2342 | /* send request */ | |
2343 | s = zclient->obuf; | |
2344 | stream_reset(s); | |
2345 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, VRF_DEFAULT); | |
2346 | /* chunk size */ | |
2347 | stream_putl(s, chunk_size); | |
2348 | /* Put length at the first point of the stream. */ | |
2349 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2350 | ||
2351 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2352 | if (ret < 0) { | |
2353 | zlog_err("%s: can't write to zclient->sock", __func__); | |
2354 | close(zclient->sock); | |
2355 | zclient->sock = -1; | |
2356 | return -1; | |
2357 | } | |
2358 | if (ret == 0) { | |
2359 | zlog_err("%s: zclient->sock connection closed", __func__); | |
2360 | close(zclient->sock); | |
2361 | zclient->sock = -1; | |
2362 | return -1; | |
2363 | } | |
2364 | if (zclient_debug) | |
2365 | zlog_debug("%s: Table chunk request (%d bytes) sent", __func__, | |
2366 | ret); | |
2367 | ||
2368 | /* read response */ | |
2369 | if (zclient_read_sync_response(zclient, ZEBRA_GET_TABLE_CHUNK) != 0) | |
2370 | return -1; | |
2371 | ||
2372 | s = zclient->ibuf; | |
2373 | /* start and end table IDs */ | |
2374 | STREAM_GETL(s, *start); | |
2375 | STREAM_GETL(s, *end); | |
2376 | ||
2377 | if (zclient_debug) | |
2378 | zlog_debug("Table Chunk assign: %u - %u ", *start, *end); | |
2379 | ||
2380 | stream_failure: | |
2381 | return 0; | |
2382 | } | |
2383 | ||
2384 | /** | |
2385 | * Function to release a table chunk | |
2386 | * | |
2387 | * @param zclient Zclient used to connect to table manager (zebra) | |
2388 | * @param start First label of table | |
2389 | * @param end Last label of chunk | |
2390 | * @result 0 on success, -1 otherwise | |
2391 | */ | |
2392 | int tm_release_table_chunk(struct zclient *zclient, uint32_t start, | |
2393 | uint32_t end) | |
2394 | { | |
2395 | struct stream *s; | |
2396 | ||
2397 | if (zclient_debug) | |
2398 | zlog_debug("Releasing Table Chunk"); | |
2399 | ||
2400 | if (zclient->sock < 0) | |
2401 | return -1; | |
2402 | ||
2403 | /* send request */ | |
2404 | s = zclient->obuf; | |
2405 | stream_reset(s); | |
2406 | zclient_create_header(s, ZEBRA_RELEASE_TABLE_CHUNK, VRF_DEFAULT); | |
2407 | ||
2408 | /* start */ | |
2409 | stream_putl(s, start); | |
2410 | /* end */ | |
2411 | stream_putl(s, end); | |
2412 | ||
2413 | /* Put length at the first point of the stream. */ | |
2414 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2415 | ||
2416 | return zclient_send_message(zclient); | |
2417 | } | |
2418 | ||
2419 | ||
6833ae01 | 2420 | int zebra_send_pw(struct zclient *zclient, int command, struct zapi_pw *pw) |
2421 | { | |
2422 | struct stream *s; | |
2423 | ||
2424 | /* Reset stream. */ | |
2425 | s = zclient->obuf; | |
2426 | stream_reset(s); | |
2427 | ||
2428 | zclient_create_header(s, command, VRF_DEFAULT); | |
2429 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
2430 | stream_putl(s, pw->ifindex); | |
2431 | ||
2432 | /* Put type */ | |
2433 | stream_putl(s, pw->type); | |
2434 | ||
2435 | /* Put nexthop */ | |
2436 | stream_putl(s, pw->af); | |
2437 | switch (pw->af) { | |
2438 | case AF_INET: | |
2439 | stream_put_in_addr(s, &pw->nexthop.ipv4); | |
2440 | break; | |
2441 | case AF_INET6: | |
d7c0a89a | 2442 | stream_write(s, (uint8_t *)&pw->nexthop.ipv6, 16); |
6833ae01 | 2443 | break; |
2444 | default: | |
2445 | zlog_err("%s: unknown af", __func__); | |
2446 | return -1; | |
2447 | } | |
2448 | ||
2449 | /* Put labels */ | |
2450 | stream_putl(s, pw->local_label); | |
2451 | stream_putl(s, pw->remote_label); | |
2452 | ||
2453 | /* Put flags */ | |
2454 | stream_putc(s, pw->flags); | |
2455 | ||
2456 | /* Protocol specific fields */ | |
2457 | stream_write(s, &pw->data, sizeof(union pw_protocol_fields)); | |
2458 | ||
2459 | /* Put length at the first point of the stream. */ | |
2460 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2461 | ||
2462 | return zclient_send_message(zclient); | |
2463 | } | |
2464 | ||
2465 | /* | |
2466 | * Receive PW status update from Zebra and send it to LDE process. | |
2467 | */ | |
2468 | void zebra_read_pw_status_update(int command, struct zclient *zclient, | |
2469 | zebra_size_t length, vrf_id_t vrf_id, | |
2470 | struct zapi_pw_status *pw) | |
2471 | { | |
2472 | struct stream *s; | |
2473 | ||
2474 | memset(pw, 0, sizeof(struct zapi_pw_status)); | |
2475 | s = zclient->ibuf; | |
2476 | ||
2477 | /* Get data. */ | |
2478 | stream_get(pw->ifname, s, IF_NAMESIZE); | |
2479 | pw->ifindex = stream_getl(s); | |
2480 | pw->status = stream_getl(s); | |
2481 | } | |
2482 | ||
718e3744 | 2483 | /* Zebra client message read function. */ |
d62a17ae | 2484 | static int zclient_read(struct thread *thread) |
718e3744 | 2485 | { |
d62a17ae | 2486 | size_t already; |
2487 | uint16_t length, command; | |
2488 | uint8_t marker, version; | |
2489 | vrf_id_t vrf_id; | |
2490 | struct zclient *zclient; | |
2491 | ||
2492 | /* Get socket to zebra. */ | |
2493 | zclient = THREAD_ARG(thread); | |
2494 | zclient->t_read = NULL; | |
2495 | ||
2496 | /* Read zebra header (if we don't have it already). */ | |
2497 | if ((already = stream_get_endp(zclient->ibuf)) < ZEBRA_HEADER_SIZE) { | |
2498 | ssize_t nbyte; | |
2499 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2500 | ZEBRA_HEADER_SIZE - already)) | |
2501 | == 0) | |
2502 | || (nbyte == -1)) { | |
2503 | if (zclient_debug) | |
2504 | zlog_debug( | |
2505 | "zclient connection closed socket [%d].", | |
2506 | zclient->sock); | |
2507 | return zclient_failed(zclient); | |
2508 | } | |
2509 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
2510 | /* Try again later. */ | |
2511 | zclient_event(ZCLIENT_READ, zclient); | |
2512 | return 0; | |
2513 | } | |
2514 | already = ZEBRA_HEADER_SIZE; | |
634f9ea2 | 2515 | } |
d62a17ae | 2516 | |
2517 | /* Reset to read from the beginning of the incoming packet. */ | |
2518 | stream_set_getp(zclient->ibuf, 0); | |
2519 | ||
2520 | /* Fetch header values. */ | |
2521 | length = stream_getw(zclient->ibuf); | |
2522 | marker = stream_getc(zclient->ibuf); | |
2523 | version = stream_getc(zclient->ibuf); | |
a9ff90c4 | 2524 | vrf_id = stream_getl(zclient->ibuf); |
d62a17ae | 2525 | command = stream_getw(zclient->ibuf); |
2526 | ||
2527 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
2528 | zlog_err( | |
2529 | "%s: socket %d version mismatch, marker %d, version %d", | |
2530 | __func__, zclient->sock, marker, version); | |
2531 | return zclient_failed(zclient); | |
634f9ea2 | 2532 | } |
d62a17ae | 2533 | |
2534 | if (length < ZEBRA_HEADER_SIZE) { | |
2535 | zlog_err("%s: socket %d message length %u is less than %d ", | |
2536 | __func__, zclient->sock, length, ZEBRA_HEADER_SIZE); | |
2537 | return zclient_failed(zclient); | |
634f9ea2 | 2538 | } |
d62a17ae | 2539 | |
2540 | /* Length check. */ | |
2541 | if (length > STREAM_SIZE(zclient->ibuf)) { | |
2542 | struct stream *ns; | |
2543 | zlog_warn( | |
2544 | "%s: message size %u exceeds buffer size %lu, expanding...", | |
d7c0a89a QY |
2545 | __func__, length, |
2546 | (unsigned long)STREAM_SIZE(zclient->ibuf)); | |
d62a17ae | 2547 | ns = stream_new(length); |
2548 | stream_copy(ns, zclient->ibuf); | |
2549 | stream_free(zclient->ibuf); | |
2550 | zclient->ibuf = ns; | |
2551 | } | |
2552 | ||
2553 | /* Read rest of zebra packet. */ | |
2554 | if (already < length) { | |
2555 | ssize_t nbyte; | |
2556 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2557 | length - already)) | |
2558 | == 0) | |
2559 | || (nbyte == -1)) { | |
2560 | if (zclient_debug) | |
2561 | zlog_debug( | |
2562 | "zclient connection closed socket [%d].", | |
2563 | zclient->sock); | |
2564 | return zclient_failed(zclient); | |
2565 | } | |
2566 | if (nbyte != (ssize_t)(length - already)) { | |
2567 | /* Try again later. */ | |
2568 | zclient_event(ZCLIENT_READ, zclient); | |
2569 | return 0; | |
2570 | } | |
2571 | } | |
2572 | ||
2573 | length -= ZEBRA_HEADER_SIZE; | |
2574 | ||
2575 | if (zclient_debug) | |
2576 | zlog_debug("zclient 0x%p command 0x%x VRF %u\n", | |
2577 | (void *)zclient, command, vrf_id); | |
2578 | ||
2579 | switch (command) { | |
2580 | case ZEBRA_ROUTER_ID_UPDATE: | |
2581 | if (zclient->router_id_update) | |
2582 | (*zclient->router_id_update)(command, zclient, length, | |
2583 | vrf_id); | |
2584 | break; | |
2585 | case ZEBRA_VRF_ADD: | |
2586 | zclient_vrf_add(zclient, vrf_id); | |
2587 | break; | |
2588 | case ZEBRA_VRF_DELETE: | |
2589 | zclient_vrf_delete(zclient, vrf_id); | |
2590 | break; | |
2591 | case ZEBRA_INTERFACE_ADD: | |
2592 | if (zclient->interface_add) | |
2593 | (*zclient->interface_add)(command, zclient, length, | |
2594 | vrf_id); | |
2595 | break; | |
2596 | case ZEBRA_INTERFACE_DELETE: | |
2597 | if (zclient->interface_delete) | |
2598 | (*zclient->interface_delete)(command, zclient, length, | |
2599 | vrf_id); | |
2600 | break; | |
2601 | case ZEBRA_INTERFACE_ADDRESS_ADD: | |
2602 | if (zclient->interface_address_add) | |
2603 | (*zclient->interface_address_add)(command, zclient, | |
2604 | length, vrf_id); | |
2605 | break; | |
2606 | case ZEBRA_INTERFACE_ADDRESS_DELETE: | |
2607 | if (zclient->interface_address_delete) | |
2608 | (*zclient->interface_address_delete)(command, zclient, | |
2609 | length, vrf_id); | |
2610 | break; | |
2611 | case ZEBRA_INTERFACE_BFD_DEST_UPDATE: | |
2612 | if (zclient->interface_bfd_dest_update) | |
2613 | (*zclient->interface_bfd_dest_update)(command, zclient, | |
2614 | length, vrf_id); | |
2615 | break; | |
2616 | case ZEBRA_INTERFACE_NBR_ADDRESS_ADD: | |
2617 | if (zclient->interface_nbr_address_add) | |
2618 | (*zclient->interface_nbr_address_add)(command, zclient, | |
2619 | length, vrf_id); | |
2620 | break; | |
2621 | case ZEBRA_INTERFACE_NBR_ADDRESS_DELETE: | |
2622 | if (zclient->interface_nbr_address_delete) | |
2623 | (*zclient->interface_nbr_address_delete)( | |
2624 | command, zclient, length, vrf_id); | |
2625 | break; | |
2626 | case ZEBRA_INTERFACE_UP: | |
2627 | if (zclient->interface_up) | |
2628 | (*zclient->interface_up)(command, zclient, length, | |
2629 | vrf_id); | |
2630 | break; | |
2631 | case ZEBRA_INTERFACE_DOWN: | |
2632 | if (zclient->interface_down) | |
2633 | (*zclient->interface_down)(command, zclient, length, | |
2634 | vrf_id); | |
2635 | break; | |
2636 | case ZEBRA_INTERFACE_VRF_UPDATE: | |
2637 | if (zclient->interface_vrf_update) | |
2638 | (*zclient->interface_vrf_update)(command, zclient, | |
2639 | length, vrf_id); | |
2640 | break; | |
2641 | case ZEBRA_NEXTHOP_UPDATE: | |
2642 | if (zclient_debug) | |
2643 | zlog_debug("zclient rcvd nexthop update\n"); | |
2644 | if (zclient->nexthop_update) | |
2645 | (*zclient->nexthop_update)(command, zclient, length, | |
2646 | vrf_id); | |
2647 | break; | |
2648 | case ZEBRA_IMPORT_CHECK_UPDATE: | |
2649 | if (zclient_debug) | |
2650 | zlog_debug("zclient rcvd import check update\n"); | |
2651 | if (zclient->import_check_update) | |
2652 | (*zclient->import_check_update)(command, zclient, | |
2653 | length, vrf_id); | |
2654 | break; | |
2655 | case ZEBRA_BFD_DEST_REPLAY: | |
2656 | if (zclient->bfd_dest_replay) | |
2657 | (*zclient->bfd_dest_replay)(command, zclient, length, | |
2658 | vrf_id); | |
2659 | break; | |
74489921 RW |
2660 | case ZEBRA_REDISTRIBUTE_ROUTE_ADD: |
2661 | if (zclient->redistribute_route_add) | |
2662 | (*zclient->redistribute_route_add)(command, zclient, | |
2663 | length, vrf_id); | |
d62a17ae | 2664 | break; |
74489921 RW |
2665 | case ZEBRA_REDISTRIBUTE_ROUTE_DEL: |
2666 | if (zclient->redistribute_route_del) | |
2667 | (*zclient->redistribute_route_del)(command, zclient, | |
2668 | length, vrf_id); | |
d62a17ae | 2669 | break; |
2670 | case ZEBRA_INTERFACE_LINK_PARAMS: | |
2671 | if (zclient->interface_link_params) | |
2672 | (*zclient->interface_link_params)(command, zclient, | |
2673 | length); | |
2674 | break; | |
2675 | case ZEBRA_FEC_UPDATE: | |
2676 | if (zclient_debug) | |
2677 | zlog_debug("zclient rcvd fec update\n"); | |
2678 | if (zclient->fec_update) | |
2679 | (*zclient->fec_update)(command, zclient, length); | |
2680 | break; | |
2681 | case ZEBRA_VNI_ADD: | |
2682 | if (zclient->local_vni_add) | |
2683 | (*zclient->local_vni_add)(command, zclient, length, | |
2684 | vrf_id); | |
2685 | break; | |
2686 | case ZEBRA_VNI_DEL: | |
2687 | if (zclient->local_vni_del) | |
2688 | (*zclient->local_vni_del)(command, zclient, length, | |
2689 | vrf_id); | |
2690 | break; | |
b7cfce93 MK |
2691 | case ZEBRA_L3VNI_ADD: |
2692 | if (zclient->local_l3vni_add) | |
2693 | (*zclient->local_l3vni_add)(command, zclient, length, | |
2694 | vrf_id); | |
2695 | break; | |
2696 | case ZEBRA_L3VNI_DEL: | |
2697 | if (zclient->local_l3vni_del) | |
2698 | (*zclient->local_l3vni_del)(command, zclient, length, | |
2699 | vrf_id); | |
2700 | break; | |
d62a17ae | 2701 | case ZEBRA_MACIP_ADD: |
2702 | if (zclient->local_macip_add) | |
2703 | (*zclient->local_macip_add)(command, zclient, length, | |
2704 | vrf_id); | |
2705 | break; | |
2706 | case ZEBRA_MACIP_DEL: | |
2707 | if (zclient->local_macip_del) | |
2708 | (*zclient->local_macip_del)(command, zclient, length, | |
2709 | vrf_id); | |
2710 | break; | |
31310b25 MK |
2711 | case ZEBRA_IP_PREFIX_ROUTE_ADD: |
2712 | if (zclient->local_ip_prefix_add) | |
2713 | (*zclient->local_ip_prefix_add)(command, zclient, | |
2714 | length, vrf_id); | |
2715 | break; | |
2716 | case ZEBRA_IP_PREFIX_ROUTE_DEL: | |
2717 | if (zclient->local_ip_prefix_del) | |
2718 | (*zclient->local_ip_prefix_del)(command, zclient, | |
2719 | length, vrf_id); | |
2720 | break; | |
6833ae01 | 2721 | case ZEBRA_PW_STATUS_UPDATE: |
2722 | if (zclient->pw_status_update) | |
2723 | (*zclient->pw_status_update)(command, zclient, length, | |
2724 | vrf_id); | |
2725 | break; | |
7ea7b86e | 2726 | case ZEBRA_ROUTE_NOTIFY_OWNER: |
28b11f81 DS |
2727 | if (zclient->route_notify_owner) |
2728 | (*zclient->route_notify_owner)(command, zclient, length, | |
2729 | vrf_id); | |
7ea7b86e | 2730 | break; |
b6c5d343 DS |
2731 | case ZEBRA_RULE_NOTIFY_OWNER: |
2732 | if (zclient->rule_notify_owner) | |
2733 | (*zclient->rule_notify_owner)(command, zclient, length, | |
2734 | vrf_id); | |
955bfd98 PZ |
2735 | break; |
2736 | case ZEBRA_GET_LABEL_CHUNK: | |
2737 | if (zclient->label_chunk) | |
2738 | (*zclient->label_chunk)(command, zclient, length, | |
2739 | vrf_id); | |
2740 | break; | |
d62a17ae | 2741 | default: |
2742 | break; | |
634f9ea2 | 2743 | } |
d62a17ae | 2744 | |
2745 | if (zclient->sock < 0) | |
2746 | /* Connection was closed during packet processing. */ | |
2747 | return -1; | |
2748 | ||
2749 | /* Register read thread. */ | |
2750 | stream_reset(zclient->ibuf); | |
2751 | zclient_event(ZCLIENT_READ, zclient); | |
2752 | ||
2753 | return 0; | |
718e3744 | 2754 | } |
2755 | ||
d62a17ae | 2756 | void zclient_redistribute(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 2757 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 2758 | { |
718e3744 | 2759 | |
d62a17ae | 2760 | if (instance) { |
2761 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
2762 | if (redist_check_instance( | |
2763 | &zclient->mi_redist[afi][type], instance)) | |
2764 | return; | |
2765 | redist_add_instance(&zclient->mi_redist[afi][type], | |
2766 | instance); | |
2767 | } else { | |
2768 | if (!redist_check_instance( | |
2769 | &zclient->mi_redist[afi][type], instance)) | |
2770 | return; | |
2771 | redist_del_instance(&zclient->mi_redist[afi][type], | |
2772 | instance); | |
2773 | } | |
2774 | ||
2775 | } else { | |
2776 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
2777 | if (vrf_bitmap_check(zclient->redist[afi][type], | |
2778 | vrf_id)) | |
2779 | return; | |
2780 | vrf_bitmap_set(zclient->redist[afi][type], vrf_id); | |
2781 | } else { | |
2782 | if (!vrf_bitmap_check(zclient->redist[afi][type], | |
2783 | vrf_id)) | |
2784 | return; | |
2785 | vrf_bitmap_unset(zclient->redist[afi][type], vrf_id); | |
2786 | } | |
2787 | } | |
2788 | ||
2789 | if (zclient->sock > 0) | |
2790 | zebra_redistribute_send(command, zclient, afi, type, instance, | |
2791 | vrf_id); | |
718e3744 | 2792 | } |
2793 | ||
718e3744 | 2794 | |
d62a17ae | 2795 | void zclient_redistribute_default(int command, struct zclient *zclient, |
2796 | vrf_id_t vrf_id) | |
718e3744 | 2797 | { |
718e3744 | 2798 | |
d62a17ae | 2799 | if (command == ZEBRA_REDISTRIBUTE_DEFAULT_ADD) { |
2800 | if (vrf_bitmap_check(zclient->default_information, vrf_id)) | |
2801 | return; | |
2802 | vrf_bitmap_set(zclient->default_information, vrf_id); | |
2803 | } else { | |
2804 | if (!vrf_bitmap_check(zclient->default_information, vrf_id)) | |
2805 | return; | |
2806 | vrf_bitmap_unset(zclient->default_information, vrf_id); | |
2807 | } | |
2808 | ||
2809 | if (zclient->sock > 0) | |
2810 | zebra_message_send(zclient, command, vrf_id); | |
718e3744 | 2811 | } |
2812 | ||
d62a17ae | 2813 | static void zclient_event(enum event event, struct zclient *zclient) |
718e3744 | 2814 | { |
d62a17ae | 2815 | switch (event) { |
2816 | case ZCLIENT_SCHEDULE: | |
2817 | thread_add_event(zclient->master, zclient_connect, zclient, 0, | |
2818 | &zclient->t_connect); | |
2819 | break; | |
2820 | case ZCLIENT_CONNECT: | |
2821 | if (zclient_debug) | |
2822 | zlog_debug( | |
2823 | "zclient connect failures: %d schedule interval is now %d", | |
2824 | zclient->fail, zclient->fail < 3 ? 10 : 60); | |
2825 | thread_add_timer(zclient->master, zclient_connect, zclient, | |
2826 | zclient->fail < 3 ? 10 : 60, | |
2827 | &zclient->t_connect); | |
2828 | break; | |
2829 | case ZCLIENT_READ: | |
2830 | zclient->t_read = NULL; | |
2831 | thread_add_read(zclient->master, zclient_read, zclient, | |
2832 | zclient->sock, &zclient->t_read); | |
2833 | break; | |
2834 | } | |
718e3744 | 2835 | } |
b5114685 | 2836 | |
e0ae31b8 DS |
2837 | void zclient_interface_set_master(struct zclient *client, |
2838 | struct interface *master, | |
2839 | struct interface *slave) | |
2840 | { | |
2841 | struct stream *s; | |
2842 | ||
2843 | s = client->obuf; | |
2844 | stream_reset(s); | |
2845 | ||
2846 | zclient_create_header(s, ZEBRA_INTERFACE_SET_MASTER, master->vrf_id); | |
2847 | ||
a9ff90c4 | 2848 | stream_putl(s, master->vrf_id); |
e0ae31b8 | 2849 | stream_putl(s, master->ifindex); |
a9ff90c4 | 2850 | stream_putl(s, slave->vrf_id); |
e0ae31b8 DS |
2851 | stream_putl(s, slave->ifindex); |
2852 | ||
2853 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2854 | zclient_send_message(client); | |
2855 | } |