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718e3744 | 1 | /* Zebra's client library. |
2 | * Copyright (C) 1999 Kunihiro Ishiguro | |
634f9ea2 | 3 | * Copyright (C) 2005 Andrew J. Schorr |
718e3744 | 4 | * |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation; either version 2, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "prefix.h" | |
25 | #include "stream.h" | |
634f9ea2 | 26 | #include "buffer.h" |
718e3744 | 27 | #include "network.h" |
7922fc65 DS |
28 | #include "vrf.h" |
29 | #include "vrf_int.h" | |
718e3744 | 30 | #include "if.h" |
31 | #include "log.h" | |
32 | #include "thread.h" | |
33 | #include "zclient.h" | |
34 | #include "memory.h" | |
35 | #include "table.h" | |
5b30316e | 36 | #include "nexthop.h" |
fea12efb | 37 | #include "mpls.h" |
342213ea | 38 | #include "sockopt.h" |
0031a6bb | 39 | #include "pbr.h" |
98cbbaea | 40 | #include "nexthop_group.h" |
1ca3850c | 41 | #include "lib_errors.h" |
6b0655a2 | 42 | |
4a1ab8e4 | 43 | DEFINE_MTYPE_STATIC(LIB, ZCLIENT, "Zclient") |
14878121 | 44 | DEFINE_MTYPE_STATIC(LIB, REDIST_INST, "Redistribution instance IDs") |
4a1ab8e4 | 45 | |
718e3744 | 46 | /* Zebra client events. */ |
d62a17ae | 47 | enum event { ZCLIENT_SCHEDULE, ZCLIENT_READ, ZCLIENT_CONNECT }; |
718e3744 | 48 | |
49 | /* Prototype for event manager. */ | |
d62a17ae | 50 | static void zclient_event(enum event, struct zclient *); |
718e3744 | 51 | |
26f8f6fe DS |
52 | static void zebra_interface_if_set_value(struct stream *s, |
53 | struct interface *ifp); | |
54 | ||
c17faa4b QY |
55 | struct zclient_options zclient_options_default = {.receive_notify = false}; |
56 | ||
689f5a8c DL |
57 | struct sockaddr_storage zclient_addr; |
58 | socklen_t zclient_addr_len; | |
b5114685 | 59 | |
718e3744 | 60 | /* This file local debug flag. */ |
c17faa4b | 61 | static int zclient_debug; |
e1a1880d | 62 | |
718e3744 | 63 | /* Allocate zclient structure. */ |
26f63a1e DS |
64 | struct zclient *zclient_new(struct thread_master *master, |
65 | struct zclient_options *opt) | |
718e3744 | 66 | { |
d62a17ae | 67 | struct zclient *zclient; |
f3f45626 DS |
68 | size_t stream_size = |
69 | MAX(ZEBRA_MAX_PACKET_SIZ, sizeof(struct zapi_route)); | |
70 | ||
d62a17ae | 71 | zclient = XCALLOC(MTYPE_ZCLIENT, sizeof(struct zclient)); |
718e3744 | 72 | |
f3f45626 DS |
73 | zclient->ibuf = stream_new(stream_size); |
74 | zclient->obuf = stream_new(stream_size); | |
d62a17ae | 75 | zclient->wb = buffer_new(0); |
76 | zclient->master = master; | |
718e3744 | 77 | |
e1a1880d DS |
78 | zclient->receive_notify = opt->receive_notify; |
79 | ||
d62a17ae | 80 | return zclient; |
718e3744 | 81 | } |
82 | ||
228da428 | 83 | /* This function is only called when exiting, because |
634f9ea2 | 84 | many parts of the code do not check for I/O errors, so they could |
85 | reference an invalid pointer if the structure was ever freed. | |
634f9ea2 | 86 | |
228da428 | 87 | Free zclient structure. */ |
d62a17ae | 88 | void zclient_free(struct zclient *zclient) |
718e3744 | 89 | { |
d62a17ae | 90 | if (zclient->ibuf) |
91 | stream_free(zclient->ibuf); | |
92 | if (zclient->obuf) | |
93 | stream_free(zclient->obuf); | |
94 | if (zclient->wb) | |
95 | buffer_free(zclient->wb); | |
96 | ||
97 | XFREE(MTYPE_ZCLIENT, zclient); | |
718e3744 | 98 | } |
99 | ||
d7c0a89a QY |
100 | unsigned short *redist_check_instance(struct redist_proto *red, |
101 | unsigned short instance) | |
7c8ff89e | 102 | { |
d62a17ae | 103 | struct listnode *node; |
d7c0a89a | 104 | unsigned short *id; |
7c8ff89e | 105 | |
d62a17ae | 106 | if (!red->instances) |
107 | return NULL; | |
7c8ff89e | 108 | |
d62a17ae | 109 | for (ALL_LIST_ELEMENTS_RO(red->instances, node, id)) |
110 | if (*id == instance) | |
111 | return id; | |
7c8ff89e | 112 | |
d62a17ae | 113 | return NULL; |
7c8ff89e DS |
114 | } |
115 | ||
d7c0a89a | 116 | void redist_add_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 117 | { |
d7c0a89a | 118 | unsigned short *in; |
7c8ff89e | 119 | |
d62a17ae | 120 | red->enabled = 1; |
7c8ff89e | 121 | |
d62a17ae | 122 | if (!red->instances) |
123 | red->instances = list_new(); | |
7c8ff89e | 124 | |
d7c0a89a | 125 | in = XMALLOC(MTYPE_REDIST_INST, sizeof(unsigned short)); |
d62a17ae | 126 | *in = instance; |
127 | listnode_add(red->instances, in); | |
7c8ff89e DS |
128 | } |
129 | ||
d7c0a89a | 130 | void redist_del_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 131 | { |
d7c0a89a | 132 | unsigned short *id; |
d62a17ae | 133 | |
134 | id = redist_check_instance(red, instance); | |
135 | if (!id) | |
136 | return; | |
137 | ||
138 | listnode_delete(red->instances, id); | |
139 | XFREE(MTYPE_REDIST_INST, id); | |
140 | if (!red->instances->count) { | |
141 | red->enabled = 0; | |
6a154c88 | 142 | list_delete(&red->instances); |
d62a17ae | 143 | } |
7c8ff89e DS |
144 | } |
145 | ||
718e3744 | 146 | /* Stop zebra client services. */ |
d62a17ae | 147 | void zclient_stop(struct zclient *zclient) |
718e3744 | 148 | { |
d62a17ae | 149 | afi_t afi; |
150 | int i; | |
151 | ||
152 | if (zclient_debug) | |
153 | zlog_debug("zclient stopped"); | |
154 | ||
155 | /* Stop threads. */ | |
156 | THREAD_OFF(zclient->t_read); | |
157 | THREAD_OFF(zclient->t_connect); | |
158 | THREAD_OFF(zclient->t_write); | |
159 | ||
160 | /* Reset streams. */ | |
161 | stream_reset(zclient->ibuf); | |
162 | stream_reset(zclient->obuf); | |
163 | ||
164 | /* Empty the write buffer. */ | |
165 | buffer_reset(zclient->wb); | |
166 | ||
167 | /* Close socket. */ | |
168 | if (zclient->sock >= 0) { | |
169 | close(zclient->sock); | |
170 | zclient->sock = -1; | |
171 | } | |
172 | zclient->fail = 0; | |
173 | ||
174 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
175 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
176 | vrf_bitmap_free(zclient->redist[afi][i]); | |
177 | zclient->redist[afi][i] = VRF_BITMAP_NULL; | |
178 | } | |
179 | redist_del_instance( | |
180 | &zclient->mi_redist[afi][zclient->redist_default], | |
181 | zclient->instance); | |
41246cb6 | 182 | |
49db7a7b RW |
183 | vrf_bitmap_free(zclient->default_information[afi]); |
184 | zclient->default_information[afi] = VRF_BITMAP_NULL; | |
185 | } | |
718e3744 | 186 | } |
187 | ||
d62a17ae | 188 | void zclient_reset(struct zclient *zclient) |
718e3744 | 189 | { |
d62a17ae | 190 | afi_t afi; |
3d68677e | 191 | |
d62a17ae | 192 | zclient_stop(zclient); |
3d68677e | 193 | |
d62a17ae | 194 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
195 | redist_del_instance( | |
196 | &zclient->mi_redist[afi][zclient->redist_default], | |
197 | zclient->instance); | |
3d68677e | 198 | |
996c9314 LB |
199 | zclient_init(zclient, zclient->redist_default, zclient->instance, |
200 | zclient->privs); | |
718e3744 | 201 | } |
202 | ||
689f5a8c DL |
203 | /** |
204 | * Connect to zebra daemon. | |
205 | * @param zclient a pointer to zclient structure | |
206 | * @return socket fd just to make sure that connection established | |
207 | * @see zclient_init | |
26f63a1e | 208 | * @see zclient_new |
689f5a8c DL |
209 | */ |
210 | int zclient_socket_connect(struct zclient *zclient) | |
718e3744 | 211 | { |
d62a17ae | 212 | int sock; |
213 | int ret; | |
d62a17ae | 214 | |
215 | /* We should think about IPv6 connection. */ | |
689f5a8c | 216 | sock = socket(zclient_addr.ss_family, SOCK_STREAM, 0); |
d62a17ae | 217 | if (sock < 0) |
218 | return -1; | |
219 | ||
689f5a8c | 220 | set_cloexec(sock); |
338b8e91 | 221 | setsockopt_so_sendbuf(sock, 1048576); |
342213ea | 222 | |
d62a17ae | 223 | /* Connect to zebra. */ |
996c9314 | 224 | ret = connect(sock, (struct sockaddr *)&zclient_addr, zclient_addr_len); |
d62a17ae | 225 | if (ret < 0) { |
226 | if (zclient_debug) | |
decbd929 DS |
227 | zlog_debug("%s connect failure: %d(%s)", |
228 | __PRETTY_FUNCTION__, errno, | |
229 | safe_strerror(errno)); | |
d62a17ae | 230 | close(sock); |
231 | return -1; | |
232 | } | |
718e3744 | 233 | |
689f5a8c | 234 | zclient->sock = sock; |
d62a17ae | 235 | return sock; |
718e3744 | 236 | } |
237 | ||
d62a17ae | 238 | static int zclient_failed(struct zclient *zclient) |
634f9ea2 | 239 | { |
d62a17ae | 240 | zclient->fail++; |
241 | zclient_stop(zclient); | |
242 | zclient_event(ZCLIENT_CONNECT, zclient); | |
243 | return -1; | |
634f9ea2 | 244 | } |
245 | ||
d62a17ae | 246 | static int zclient_flush_data(struct thread *thread) |
634f9ea2 | 247 | { |
d62a17ae | 248 | struct zclient *zclient = THREAD_ARG(thread); |
249 | ||
250 | zclient->t_write = NULL; | |
251 | if (zclient->sock < 0) | |
252 | return -1; | |
253 | switch (buffer_flush_available(zclient->wb, zclient->sock)) { | |
254 | case BUFFER_ERROR: | |
ade6974d | 255 | flog_err( |
450971aa | 256 | EC_LIB_ZAPI_SOCKET, |
ade6974d QY |
257 | "%s: buffer_flush_available failed on zclient fd %d, closing", |
258 | __func__, zclient->sock); | |
d62a17ae | 259 | return zclient_failed(zclient); |
260 | break; | |
261 | case BUFFER_PENDING: | |
262 | zclient->t_write = NULL; | |
263 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
264 | zclient->sock, &zclient->t_write); | |
265 | break; | |
266 | case BUFFER_EMPTY: | |
267 | break; | |
268 | } | |
269 | return 0; | |
634f9ea2 | 270 | } |
271 | ||
d62a17ae | 272 | int zclient_send_message(struct zclient *zclient) |
634f9ea2 | 273 | { |
d62a17ae | 274 | if (zclient->sock < 0) |
275 | return -1; | |
276 | switch (buffer_write(zclient->wb, zclient->sock, | |
277 | STREAM_DATA(zclient->obuf), | |
278 | stream_get_endp(zclient->obuf))) { | |
279 | case BUFFER_ERROR: | |
450971aa | 280 | flog_err(EC_LIB_ZAPI_SOCKET, |
decbd929 DS |
281 | "%s: buffer_write failed to zclient fd %d, closing", |
282 | __func__, zclient->sock); | |
d62a17ae | 283 | return zclient_failed(zclient); |
284 | break; | |
285 | case BUFFER_EMPTY: | |
286 | THREAD_OFF(zclient->t_write); | |
287 | break; | |
288 | case BUFFER_PENDING: | |
289 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
290 | zclient->sock, &zclient->t_write); | |
291 | break; | |
292 | } | |
293 | return 0; | |
634f9ea2 | 294 | } |
295 | ||
6e8e0925 DS |
296 | /* |
297 | * If we add more data to this structure please ensure that | |
298 | * struct zmsghdr in lib/zclient.h is updated as appropriate. | |
299 | */ | |
d62a17ae | 300 | void zclient_create_header(struct stream *s, uint16_t command, vrf_id_t vrf_id) |
c1b9800a | 301 | { |
d62a17ae | 302 | /* length placeholder, caller can update */ |
303 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
304 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
305 | stream_putc(s, ZSERV_VERSION); | |
a9ff90c4 | 306 | stream_putl(s, vrf_id); |
d62a17ae | 307 | stream_putw(s, command); |
c1b9800a | 308 | } |
309 | ||
d7c0a89a QY |
310 | int zclient_read_header(struct stream *s, int sock, uint16_t *size, |
311 | uint8_t *marker, uint8_t *version, vrf_id_t *vrf_id, | |
312 | uint16_t *cmd) | |
55119089 | 313 | { |
d62a17ae | 314 | if (stream_read(s, sock, ZEBRA_HEADER_SIZE) != ZEBRA_HEADER_SIZE) |
315 | return -1; | |
316 | ||
ec93aa12 DS |
317 | STREAM_GETW(s, *size); |
318 | *size -= ZEBRA_HEADER_SIZE; | |
319 | STREAM_GETC(s, *marker); | |
320 | STREAM_GETC(s, *version); | |
a9ff90c4 | 321 | STREAM_GETL(s, *vrf_id); |
ec93aa12 | 322 | STREAM_GETW(s, *cmd); |
d62a17ae | 323 | |
324 | if (*version != ZSERV_VERSION || *marker != ZEBRA_HEADER_MARKER) { | |
1c50c1c0 QY |
325 | flog_err( |
326 | EC_LIB_ZAPI_MISSMATCH, | |
327 | "%s: socket %d version mismatch, marker %d, version %d", | |
328 | __func__, sock, *marker, *version); | |
d62a17ae | 329 | return -1; |
330 | } | |
331 | ||
332 | if (*size && stream_read(s, sock, *size) != *size) | |
333 | return -1; | |
334 | ||
335 | return 0; | |
6a2b0d9a RW |
336 | stream_failure: |
337 | return -1; | |
55119089 ND |
338 | } |
339 | ||
124ead27 QY |
340 | bool zapi_parse_header(struct stream *zmsg, struct zmsghdr *hdr) |
341 | { | |
342 | STREAM_GETW(zmsg, hdr->length); | |
343 | STREAM_GETC(zmsg, hdr->marker); | |
344 | STREAM_GETC(zmsg, hdr->version); | |
107afcd1 | 345 | STREAM_GETL(zmsg, hdr->vrf_id); |
124ead27 QY |
346 | STREAM_GETW(zmsg, hdr->command); |
347 | return true; | |
348 | stream_failure: | |
349 | return false; | |
350 | } | |
351 | ||
634f9ea2 | 352 | /* Send simple Zebra message. */ |
d62a17ae | 353 | static int zebra_message_send(struct zclient *zclient, int command, |
354 | vrf_id_t vrf_id) | |
718e3744 | 355 | { |
d62a17ae | 356 | struct stream *s; |
718e3744 | 357 | |
d62a17ae | 358 | /* Get zclient output buffer. */ |
359 | s = zclient->obuf; | |
360 | stream_reset(s); | |
718e3744 | 361 | |
d62a17ae | 362 | /* Send very simple command only Zebra message. */ |
363 | zclient_create_header(s, command, vrf_id); | |
364 | ||
365 | return zclient_send_message(zclient); | |
718e3744 | 366 | } |
367 | ||
d62a17ae | 368 | static int zebra_hello_send(struct zclient *zclient) |
2ea1ab1c | 369 | { |
d62a17ae | 370 | struct stream *s; |
371 | ||
372 | if (zclient->redist_default) { | |
373 | s = zclient->obuf; | |
374 | stream_reset(s); | |
375 | ||
376 | /* The VRF ID in the HELLO message is always 0. */ | |
377 | zclient_create_header(s, ZEBRA_HELLO, VRF_DEFAULT); | |
378 | stream_putc(s, zclient->redist_default); | |
379 | stream_putw(s, zclient->instance); | |
e1a1880d DS |
380 | if (zclient->receive_notify) |
381 | stream_putc(s, 1); | |
382 | else | |
383 | stream_putc(s, 0); | |
384 | ||
d62a17ae | 385 | stream_putw_at(s, 0, stream_get_endp(s)); |
386 | return zclient_send_message(zclient); | |
387 | } | |
388 | ||
389 | return 0; | |
2ea1ab1c VT |
390 | } |
391 | ||
7d061b3c | 392 | void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id, afi_t afi, |
339e36d2 | 393 | mpls_label_t label, enum lsp_types_t ltype) |
c83c5e44 DS |
394 | { |
395 | struct stream *s; | |
396 | ||
397 | s = zclient->obuf; | |
398 | stream_reset(s); | |
399 | ||
400 | zclient_create_header(s, ZEBRA_VRF_LABEL, vrf_id); | |
401 | stream_putl(s, label); | |
7d061b3c | 402 | stream_putc(s, afi); |
339e36d2 | 403 | stream_putc(s, ltype); |
c83c5e44 DS |
404 | stream_putw_at(s, 0, stream_get_endp(s)); |
405 | zclient_send_message(zclient); | |
406 | } | |
407 | ||
0e5223e7 | 408 | /* Send register requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 409 | void zclient_send_reg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
7076bb2f | 410 | { |
d62a17ae | 411 | int i; |
412 | afi_t afi; | |
413 | ||
d62a17ae | 414 | /* If not connected to the zebra yet. */ |
415 | if (zclient->sock < 0) | |
416 | return; | |
417 | ||
418 | if (zclient_debug) | |
419 | zlog_debug("%s: send register messages for VRF %u", __func__, | |
420 | vrf_id); | |
421 | ||
422 | /* We need router-id information. */ | |
423 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_ADD, vrf_id); | |
424 | ||
eeb2dfa3 DS |
425 | /* We need interface information. */ |
426 | zebra_message_send(zclient, ZEBRA_INTERFACE_ADD, vrf_id); | |
427 | ||
d62a17ae | 428 | /* Set unwanted redistribute route. */ |
429 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
430 | vrf_bitmap_set(zclient->redist[afi][zclient->redist_default], | |
431 | vrf_id); | |
432 | ||
433 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
434 | if (vrf_id == VRF_DEFAULT) { |
435 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
436 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
437 | if (!zclient->mi_redist[afi][i].enabled) | |
438 | continue; | |
439 | ||
440 | struct listnode *node; | |
d7c0a89a | 441 | unsigned short *id; |
0d9e7f45 DS |
442 | |
443 | for (ALL_LIST_ELEMENTS_RO( | |
444 | zclient->mi_redist[afi][i] | |
996c9314 LB |
445 | .instances, |
446 | node, id)) | |
0d9e7f45 DS |
447 | if (!(i == zclient->redist_default |
448 | && *id == zclient->instance)) | |
449 | zebra_redistribute_send( | |
450 | ZEBRA_REDISTRIBUTE_ADD, | |
996c9314 | 451 | zclient, afi, i, *id, |
0d9e7f45 DS |
452 | VRF_DEFAULT); |
453 | } | |
454 | } | |
455 | } | |
d62a17ae | 456 | |
70172b1c | 457 | /* Resend all redistribute request. */ |
49db7a7b | 458 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
d62a17ae | 459 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
460 | if (i != zclient->redist_default | |
461 | && vrf_bitmap_check(zclient->redist[afi][i], | |
462 | vrf_id)) | |
463 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, | |
464 | zclient, afi, i, 0, | |
465 | vrf_id); | |
466 | ||
49db7a7b | 467 | /* If default information is needed. */ |
d7637898 | 468 | if (vrf_bitmap_check(zclient->default_information[afi], vrf_id)) |
49db7a7b RW |
469 | zebra_redistribute_default_send( |
470 | ZEBRA_REDISTRIBUTE_DEFAULT_ADD, zclient, afi, | |
471 | vrf_id); | |
472 | } | |
7076bb2f FL |
473 | } |
474 | ||
0e5223e7 | 475 | /* Send unregister requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 476 | void zclient_send_dereg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
0e5223e7 | 477 | { |
d62a17ae | 478 | int i; |
479 | afi_t afi; | |
480 | ||
d62a17ae | 481 | /* If not connected to the zebra yet. */ |
482 | if (zclient->sock < 0) | |
483 | return; | |
484 | ||
485 | if (zclient_debug) | |
486 | zlog_debug("%s: send deregister messages for VRF %u", __func__, | |
487 | vrf_id); | |
488 | ||
489 | /* We need router-id information. */ | |
490 | zebra_message_send(zclient, ZEBRA_ROUTER_ID_DELETE, vrf_id); | |
491 | ||
eeb2dfa3 | 492 | zebra_message_send(zclient, ZEBRA_INTERFACE_DELETE, vrf_id); |
d62a17ae | 493 | |
d62a17ae | 494 | /* Set unwanted redistribute route. */ |
495 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
09eef679 DS |
496 | vrf_bitmap_unset(zclient->redist[afi][zclient->redist_default], |
497 | vrf_id); | |
d62a17ae | 498 | |
499 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
500 | if (vrf_id == VRF_DEFAULT) { |
501 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
502 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
503 | if (!zclient->mi_redist[afi][i].enabled) | |
504 | continue; | |
505 | ||
506 | struct listnode *node; | |
d7c0a89a | 507 | unsigned short *id; |
0d9e7f45 DS |
508 | |
509 | for (ALL_LIST_ELEMENTS_RO( | |
510 | zclient->mi_redist[afi][i] | |
996c9314 LB |
511 | .instances, |
512 | node, id)) | |
0d9e7f45 DS |
513 | if (!(i == zclient->redist_default |
514 | && *id == zclient->instance)) | |
515 | zebra_redistribute_send( | |
516 | ZEBRA_REDISTRIBUTE_DELETE, | |
996c9314 | 517 | zclient, afi, i, *id, |
0d9e7f45 DS |
518 | VRF_DEFAULT); |
519 | } | |
520 | } | |
521 | } | |
d62a17ae | 522 | |
523 | /* Flush all redistribute request. */ | |
49db7a7b | 524 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
d62a17ae | 525 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
526 | if (i != zclient->redist_default | |
527 | && vrf_bitmap_check(zclient->redist[afi][i], | |
528 | vrf_id)) | |
529 | zebra_redistribute_send( | |
530 | ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
531 | i, 0, vrf_id); | |
532 | ||
49db7a7b | 533 | /* If default information is needed. */ |
d7637898 | 534 | if (vrf_bitmap_check(zclient->default_information[afi], vrf_id)) |
49db7a7b RW |
535 | zebra_redistribute_default_send( |
536 | ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, zclient, afi, | |
537 | vrf_id); | |
538 | } | |
0e5223e7 | 539 | } |
540 | ||
4a04e5f7 | 541 | /* Send request to zebra daemon to start or stop RA. */ |
d62a17ae | 542 | void zclient_send_interface_radv_req(struct zclient *zclient, vrf_id_t vrf_id, |
543 | struct interface *ifp, int enable, | |
544 | int ra_interval) | |
4a04e5f7 | 545 | { |
d62a17ae | 546 | struct stream *s; |
4a04e5f7 | 547 | |
d62a17ae | 548 | /* If not connected to the zebra yet. */ |
549 | if (zclient->sock < 0) | |
550 | return; | |
4a04e5f7 | 551 | |
d62a17ae | 552 | /* Form and send message. */ |
553 | s = zclient->obuf; | |
554 | stream_reset(s); | |
4a04e5f7 | 555 | |
d62a17ae | 556 | if (enable) |
557 | zclient_create_header(s, ZEBRA_INTERFACE_ENABLE_RADV, vrf_id); | |
558 | else | |
559 | zclient_create_header(s, ZEBRA_INTERFACE_DISABLE_RADV, vrf_id); | |
4a04e5f7 | 560 | |
d62a17ae | 561 | stream_putl(s, ifp->ifindex); |
562 | stream_putl(s, ra_interval); | |
4a04e5f7 | 563 | |
d62a17ae | 564 | stream_putw_at(s, 0, stream_get_endp(s)); |
4a04e5f7 | 565 | |
d62a17ae | 566 | zclient_send_message(zclient); |
4a04e5f7 | 567 | } |
568 | ||
c3bd894e QY |
569 | int zclient_send_interface_protodown(struct zclient *zclient, vrf_id_t vrf_id, |
570 | struct interface *ifp, bool down) | |
571 | { | |
572 | struct stream *s; | |
573 | ||
574 | if (zclient->sock < 0) | |
575 | return -1; | |
576 | ||
577 | s = zclient->obuf; | |
578 | stream_reset(s); | |
579 | zclient_create_header(s, ZEBRA_INTERFACE_SET_PROTODOWN, vrf_id); | |
580 | stream_putl(s, ifp->ifindex); | |
581 | stream_putc(s, !!down); | |
582 | stream_putw_at(s, 0, stream_get_endp(s)); | |
583 | zclient_send_message(zclient); | |
584 | ||
585 | return 0; | |
586 | } | |
587 | ||
718e3744 | 588 | /* Make connection to zebra daemon. */ |
d62a17ae | 589 | int zclient_start(struct zclient *zclient) |
718e3744 | 590 | { |
d62a17ae | 591 | if (zclient_debug) |
592 | zlog_info("zclient_start is called"); | |
593 | ||
d62a17ae | 594 | /* If already connected to the zebra. */ |
595 | if (zclient->sock >= 0) | |
596 | return 0; | |
597 | ||
598 | /* Check connect thread. */ | |
599 | if (zclient->t_connect) | |
600 | return 0; | |
601 | ||
602 | if (zclient_socket_connect(zclient) < 0) { | |
603 | if (zclient_debug) | |
604 | zlog_debug("zclient connection fail"); | |
605 | zclient->fail++; | |
606 | zclient_event(ZCLIENT_CONNECT, zclient); | |
607 | return -1; | |
608 | } | |
718e3744 | 609 | |
d62a17ae | 610 | if (set_nonblocking(zclient->sock) < 0) |
450971aa | 611 | flog_err(EC_LIB_ZAPI_SOCKET, "%s: set_nonblocking(%d) failed", |
ade6974d | 612 | __func__, zclient->sock); |
718e3744 | 613 | |
d62a17ae | 614 | /* Clear fail count. */ |
615 | zclient->fail = 0; | |
616 | if (zclient_debug) | |
617 | zlog_debug("zclient connect success with socket [%d]", | |
618 | zclient->sock); | |
718e3744 | 619 | |
d62a17ae | 620 | /* Create read thread. */ |
621 | zclient_event(ZCLIENT_READ, zclient); | |
718e3744 | 622 | |
d62a17ae | 623 | zebra_hello_send(zclient); |
718e3744 | 624 | |
22761baa DS |
625 | zebra_message_send(zclient, ZEBRA_INTERFACE_ADD, VRF_DEFAULT); |
626 | ||
d62a17ae | 627 | /* Inform the successful connection. */ |
628 | if (zclient->zebra_connected) | |
629 | (*zclient->zebra_connected)(zclient); | |
718e3744 | 630 | |
d62a17ae | 631 | return 0; |
718e3744 | 632 | } |
6b0655a2 | 633 | |
078430f6 DS |
634 | /* Initialize zebra client. Argument redist_default is unwanted |
635 | redistribute route type. */ | |
d7c0a89a QY |
636 | void zclient_init(struct zclient *zclient, int redist_default, |
637 | unsigned short instance, struct zebra_privs_t *privs) | |
078430f6 | 638 | { |
d62a17ae | 639 | int afi, i; |
640 | ||
d62a17ae | 641 | /* Set -1 to the default socket value. */ |
642 | zclient->sock = -1; | |
342213ea | 643 | zclient->privs = privs; |
d62a17ae | 644 | |
645 | /* Clear redistribution flags. */ | |
646 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
647 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
648 | zclient->redist[afi][i] = vrf_bitmap_init(); | |
649 | ||
650 | /* Set unwanted redistribute route. bgpd does not need BGP route | |
651 | redistribution. */ | |
652 | zclient->redist_default = redist_default; | |
653 | zclient->instance = instance; | |
654 | /* Pending: make afi(s) an arg. */ | |
49db7a7b | 655 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
d62a17ae | 656 | redist_add_instance(&zclient->mi_redist[afi][redist_default], |
657 | instance); | |
658 | ||
49db7a7b RW |
659 | /* Set default-information redistribute to zero. */ |
660 | zclient->default_information[afi] = vrf_bitmap_init(); | |
661 | } | |
d62a17ae | 662 | |
663 | if (zclient_debug) | |
cdc6ed90 | 664 | zlog_debug("scheduling zclient connection"); |
d62a17ae | 665 | |
666 | zclient_event(ZCLIENT_SCHEDULE, zclient); | |
7076bb2f | 667 | } |
078430f6 | 668 | |
7076bb2f FL |
669 | /* This function is a wrapper function for calling zclient_start from |
670 | timer or event thread. */ | |
d62a17ae | 671 | static int zclient_connect(struct thread *t) |
7076bb2f | 672 | { |
d62a17ae | 673 | struct zclient *zclient; |
078430f6 | 674 | |
d62a17ae | 675 | zclient = THREAD_ARG(t); |
676 | zclient->t_connect = NULL; | |
078430f6 | 677 | |
d62a17ae | 678 | if (zclient_debug) |
679 | zlog_debug("zclient_connect is called"); | |
078430f6 | 680 | |
d62a17ae | 681 | return zclient_start(zclient); |
078430f6 DS |
682 | } |
683 | ||
3c192540 DS |
684 | int zclient_send_rnh(struct zclient *zclient, int command, struct prefix *p, |
685 | bool exact_match, vrf_id_t vrf_id) | |
686 | { | |
687 | struct stream *s; | |
688 | ||
689 | s = zclient->obuf; | |
690 | stream_reset(s); | |
691 | zclient_create_header(s, command, vrf_id); | |
692 | stream_putc(s, (exact_match) ? 1 : 0); | |
693 | ||
694 | stream_putw(s, PREFIX_FAMILY(p)); | |
695 | stream_putc(s, p->prefixlen); | |
696 | switch (PREFIX_FAMILY(p)) { | |
697 | case AF_INET: | |
698 | stream_put_in_addr(s, &p->u.prefix4); | |
699 | break; | |
700 | case AF_INET6: | |
701 | stream_put(s, &(p->u.prefix6), 16); | |
702 | break; | |
703 | default: | |
704 | break; | |
705 | } | |
706 | stream_putw_at(s, 0, stream_get_endp(s)); | |
707 | ||
708 | return zclient_send_message(zclient); | |
709 | } | |
710 | ||
d62a17ae | 711 | /* |
712 | * "xdr_encode"-like interface that allows daemon (client) to send | |
713 | * a message to zebra server for a route that needs to be | |
714 | * added/deleted to the kernel. Info about the route is specified | |
04772760 | 715 | * by the caller in a struct zapi_route. zapi_route_encode() then writes |
d62a17ae | 716 | * the info down the zclient socket using the stream_* functions. |
717 | * | |
718 | * The corresponding read ("xdr_decode") function on the server | |
04772760 | 719 | * side is zapi_route_decode(). |
d62a17ae | 720 | * |
721 | * 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 | |
722 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
723 | * | Length (2) | Command | Route Type | | |
724 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
725 | * | ZEBRA Flags | Message Flags | Prefix length | | |
726 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
727 | * | Destination IPv4 Prefix for route | | |
728 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
729 | * | Nexthop count | | |
730 | * +-+-+-+-+-+-+-+-+ | |
731 | * | |
732 | * | |
733 | * A number of IPv4 nexthop(s) or nexthop interface index(es) are then | |
734 | * described, as per the Nexthop count. Each nexthop described as: | |
735 | * | |
736 | * +-+-+-+-+-+-+-+-+ | |
737 | * | Nexthop Type | Set to one of ZEBRA_NEXTHOP_* | |
738 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
739 | * | IPv4 Nexthop address or Interface Index number | | |
740 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
741 | * | |
09a484dd DL |
742 | * Alternatively, if the route is a blackhole route, then Nexthop count |
743 | * is set to 1 and a nexthop of type NEXTHOP_TYPE_BLACKHOLE is the sole | |
744 | * nexthop. | |
d62a17ae | 745 | * |
04772760 DS |
746 | * The original struct zapi_route_*() infrastructure was built around |
747 | * the traditional (32-bit "gate OR ifindex") nexthop data unit. | |
748 | * A special encoding can be used to feed onlink (64-bit "gate AND ifindex") | |
749 | * nexthops into zapi_route_encode() using the same zapi_route structure. | |
750 | * This is done by setting zapi_route fields as follows: | |
d62a17ae | 751 | * - .message |= ZAPI_MESSAGE_NEXTHOP | ZAPI_MESSAGE_ONLINK |
752 | * - .nexthop_num == .ifindex_num | |
753 | * - .nexthop and .ifindex are filled with gate and ifindex parts of | |
754 | * each compound nexthop, both in the same order | |
755 | * | |
d62a17ae | 756 | * If ZAPI_MESSAGE_DISTANCE is set, the distance value is written as a 1 |
757 | * byte value. | |
758 | * | |
759 | * If ZAPI_MESSAGE_METRIC is set, the metric value is written as an 8 | |
760 | * byte value. | |
761 | * | |
762 | * If ZAPI_MESSAGE_TAG is set, the tag value is written as a 4 byte value | |
763 | * | |
764 | * If ZAPI_MESSAGE_MTU is set, the mtu value is written as a 4 byte value | |
765 | * | |
766 | * XXX: No attention paid to alignment. | |
767 | */ | |
d7c0a89a | 768 | int zclient_route_send(uint8_t cmd, struct zclient *zclient, |
0e51b4a3 | 769 | struct zapi_route *api) |
657cde12 | 770 | { |
0e51b4a3 RW |
771 | if (zapi_route_encode(cmd, zclient->obuf, api) < 0) |
772 | return -1; | |
773 | return zclient_send_message(zclient); | |
774 | } | |
775 | ||
3c6e0bd4 SW |
776 | static int zapi_nexthop_labels_cmp(const struct zapi_nexthop *next1, |
777 | const struct zapi_nexthop *next2) | |
778 | { | |
779 | if (next1->label_num > next2->label_num) | |
780 | return 1; | |
781 | ||
782 | if (next1->label_num < next2->label_num) | |
783 | return -1; | |
784 | ||
785 | return memcmp(next1->labels, next2->labels, next1->label_num); | |
786 | } | |
787 | ||
788 | static int zapi_nexthop_cmp_no_labels(const struct zapi_nexthop *next1, | |
789 | const struct zapi_nexthop *next2) | |
790 | { | |
791 | int ret = 0; | |
792 | ||
793 | if (next1->vrf_id < next2->vrf_id) | |
794 | return -1; | |
795 | ||
796 | if (next1->vrf_id > next2->vrf_id) | |
797 | return 1; | |
798 | ||
799 | if (next1->type < next2->type) | |
800 | return -1; | |
801 | ||
802 | if (next1->type > next2->type) | |
803 | return 1; | |
804 | ||
bd054c1a DS |
805 | if (next1->weight < next2->weight) |
806 | return -1; | |
807 | ||
808 | if (next1->weight > next2->weight) | |
809 | return 1; | |
810 | ||
3c6e0bd4 SW |
811 | switch (next1->type) { |
812 | case NEXTHOP_TYPE_IPV4: | |
813 | case NEXTHOP_TYPE_IPV6: | |
814 | ret = nexthop_g_addr_cmp(next1->type, &next1->gate, | |
815 | &next2->gate); | |
816 | if (ret != 0) | |
817 | return ret; | |
818 | break; | |
819 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
820 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
821 | ret = nexthop_g_addr_cmp(next1->type, &next1->gate, | |
822 | &next2->gate); | |
823 | if (ret != 0) | |
824 | return ret; | |
825 | /* Intentional Fall-Through */ | |
826 | case NEXTHOP_TYPE_IFINDEX: | |
827 | if (next1->ifindex < next2->ifindex) | |
828 | return -1; | |
829 | ||
830 | if (next1->ifindex > next2->ifindex) | |
831 | return 1; | |
832 | break; | |
833 | case NEXTHOP_TYPE_BLACKHOLE: | |
834 | if (next1->bh_type < next2->bh_type) | |
835 | return -1; | |
836 | ||
837 | if (next1->bh_type > next2->bh_type) | |
838 | return 1; | |
839 | break; | |
840 | } | |
841 | ||
842 | return 0; | |
843 | } | |
844 | ||
845 | static int zapi_nexthop_cmp(const void *item1, const void *item2) | |
846 | { | |
847 | int ret = 0; | |
848 | ||
849 | const struct zapi_nexthop *next1 = item1; | |
850 | const struct zapi_nexthop *next2 = item2; | |
851 | ||
852 | ret = zapi_nexthop_cmp_no_labels(next1, next2); | |
853 | if (ret != 0) | |
854 | return ret; | |
855 | ||
856 | ret = zapi_nexthop_labels_cmp(next1, next2); | |
857 | ||
858 | return ret; | |
859 | } | |
860 | ||
861 | static void zapi_nexthop_group_sort(struct zapi_nexthop *nh_grp, | |
862 | uint16_t nexthop_num) | |
863 | { | |
864 | qsort(nh_grp, nexthop_num, sizeof(struct zapi_nexthop), | |
865 | &zapi_nexthop_cmp); | |
866 | } | |
867 | ||
68a02e06 MS |
868 | /* |
869 | * Encode a single zapi nexthop | |
870 | */ | |
871 | int zapi_nexthop_encode(struct stream *s, const struct zapi_nexthop *api_nh, | |
872 | uint32_t api_flags) | |
873 | { | |
874 | int ret = 0; | |
875 | int nh_flags = api_nh->flags; | |
876 | ||
877 | stream_putl(s, api_nh->vrf_id); | |
878 | stream_putc(s, api_nh->type); | |
879 | ||
880 | /* If needed, set 'labelled nexthop' flag */ | |
881 | if (api_nh->label_num > 0) { | |
882 | SET_FLAG(nh_flags, ZAPI_NEXTHOP_FLAG_LABEL); | |
883 | ||
884 | /* Validate label count */ | |
885 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
886 | ret = -1; | |
887 | goto done; | |
888 | } | |
889 | } | |
890 | ||
bd054c1a DS |
891 | if (api_nh->weight) |
892 | SET_FLAG(nh_flags, ZAPI_NEXTHOP_FLAG_WEIGHT); | |
893 | ||
68a02e06 MS |
894 | /* Note that we're only encoding a single octet */ |
895 | stream_putc(s, nh_flags); | |
896 | ||
897 | switch (api_nh->type) { | |
898 | case NEXTHOP_TYPE_BLACKHOLE: | |
899 | stream_putc(s, api_nh->bh_type); | |
900 | break; | |
901 | case NEXTHOP_TYPE_IPV4: | |
902 | stream_put_in_addr(s, &api_nh->gate.ipv4); | |
903 | break; | |
904 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
905 | stream_put_in_addr(s, &api_nh->gate.ipv4); | |
906 | stream_putl(s, api_nh->ifindex); | |
907 | break; | |
908 | case NEXTHOP_TYPE_IFINDEX: | |
909 | stream_putl(s, api_nh->ifindex); | |
910 | break; | |
911 | case NEXTHOP_TYPE_IPV6: | |
912 | stream_write(s, (uint8_t *)&api_nh->gate.ipv6, | |
913 | 16); | |
914 | break; | |
915 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
916 | stream_write(s, (uint8_t *)&api_nh->gate.ipv6, | |
917 | 16); | |
918 | stream_putl(s, api_nh->ifindex); | |
919 | break; | |
920 | } | |
921 | ||
922 | /* We only encode labels if we have >0 - we use | |
923 | * the per-nexthop flag above to signal that the count | |
924 | * is present in the payload. | |
925 | */ | |
926 | if (api_nh->label_num > 0) { | |
927 | stream_putc(s, api_nh->label_num); | |
928 | stream_put(s, &api_nh->labels[0], | |
929 | api_nh->label_num * sizeof(mpls_label_t)); | |
930 | } | |
931 | ||
bd054c1a DS |
932 | if (api_nh->weight) |
933 | stream_putl(s, api_nh->weight); | |
934 | ||
68a02e06 MS |
935 | /* Router MAC for EVPN routes. */ |
936 | if (CHECK_FLAG(api_flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
937 | stream_put(s, &(api_nh->rmac), | |
938 | sizeof(struct ethaddr)); | |
939 | ||
940 | done: | |
941 | return ret; | |
942 | } | |
943 | ||
d7c0a89a | 944 | int zapi_route_encode(uint8_t cmd, struct stream *s, struct zapi_route *api) |
0e51b4a3 RW |
945 | { |
946 | struct zapi_nexthop *api_nh; | |
d62a17ae | 947 | int i; |
948 | int psize; | |
d62a17ae | 949 | |
d62a17ae | 950 | stream_reset(s); |
d62a17ae | 951 | zclient_create_header(s, cmd, api->vrf_id); |
952 | ||
e4081c0e RW |
953 | if (api->type >= ZEBRA_ROUTE_MAX) { |
954 | flog_err(EC_LIB_ZAPI_ENCODE, | |
955 | "%s: Specified route type (%u) is not a legal value\n", | |
956 | __PRETTY_FUNCTION__, api->type); | |
957 | return -1; | |
958 | } | |
d62a17ae | 959 | stream_putc(s, api->type); |
e4081c0e | 960 | |
d62a17ae | 961 | stream_putw(s, api->instance); |
962 | stream_putl(s, api->flags); | |
963 | stream_putc(s, api->message); | |
e4081c0e RW |
964 | |
965 | if (api->safi < SAFI_UNICAST || api->safi >= SAFI_MAX) { | |
966 | flog_err(EC_LIB_ZAPI_ENCODE, | |
967 | "%s: Specified route SAFI (%u) is not a legal value\n", | |
968 | __PRETTY_FUNCTION__, api->safi); | |
969 | return -1; | |
970 | } | |
832d0f56 | 971 | stream_putc(s, api->safi); |
d62a17ae | 972 | |
973 | /* Put prefix information. */ | |
0e51b4a3 | 974 | stream_putc(s, api->prefix.family); |
bb1b9c47 RW |
975 | psize = PSIZE(api->prefix.prefixlen); |
976 | stream_putc(s, api->prefix.prefixlen); | |
d7c0a89a | 977 | stream_write(s, (uint8_t *)&api->prefix.u.prefix, psize); |
d62a17ae | 978 | |
979 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
bb1b9c47 RW |
980 | psize = PSIZE(api->src_prefix.prefixlen); |
981 | stream_putc(s, api->src_prefix.prefixlen); | |
d7c0a89a | 982 | stream_write(s, (uint8_t *)&api->src_prefix.prefix, psize); |
d62a17ae | 983 | } |
984 | ||
0e51b4a3 | 985 | /* Nexthops. */ |
d62a17ae | 986 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { |
bb1b9c47 RW |
987 | /* limit the number of nexthops if necessary */ |
988 | if (api->nexthop_num > MULTIPATH_NUM) { | |
989 | char buf[PREFIX2STR_BUFFER]; | |
990 | ||
991 | prefix2str(&api->prefix, buf, sizeof(buf)); | |
ade6974d | 992 | flog_err( |
450971aa | 993 | EC_LIB_ZAPI_ENCODE, |
ade6974d QY |
994 | "%s: prefix %s: can't encode %u nexthops (maximum is %u)", |
995 | __func__, buf, api->nexthop_num, MULTIPATH_NUM); | |
a74e593b | 996 | return -1; |
bb1b9c47 RW |
997 | } |
998 | ||
3c6e0bd4 SW |
999 | zapi_nexthop_group_sort(api->nexthops, api->nexthop_num); |
1000 | ||
b5f79651 | 1001 | stream_putw(s, api->nexthop_num); |
d62a17ae | 1002 | |
1003 | for (i = 0; i < api->nexthop_num; i++) { | |
bb1b9c47 RW |
1004 | api_nh = &api->nexthops[i]; |
1005 | ||
52dd3aa4 | 1006 | /* MPLS labels for BGP-LU or Segment Routing */ |
68a02e06 MS |
1007 | if (api_nh->label_num > MPLS_MAX_LABELS) { |
1008 | char buf[PREFIX2STR_BUFFER]; | |
1009 | ||
1010 | prefix2str(&api->prefix, buf, sizeof(buf)); | |
1011 | ||
1012 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1013 | "%s: prefix %s: can't encode %u labels (maximum is %u)", | |
1014 | __func__, buf, | |
1015 | api_nh->label_num, | |
1016 | MPLS_MAX_LABELS); | |
1017 | return -1; | |
52dd3aa4 | 1018 | } |
a317a9b9 | 1019 | |
68a02e06 MS |
1020 | if (zapi_nexthop_encode(s, api_nh, api->flags) != 0) |
1021 | return -1; | |
d62a17ae | 1022 | } |
1023 | } | |
1024 | ||
0e51b4a3 | 1025 | /* Attributes. */ |
d62a17ae | 1026 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
1027 | stream_putc(s, api->distance); | |
1028 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
1029 | stream_putl(s, api->metric); | |
1030 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
1031 | stream_putl(s, api->tag); | |
1032 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
1033 | stream_putl(s, api->mtu); | |
ba1849ef DS |
1034 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1035 | stream_putl(s, api->tableid); | |
d62a17ae | 1036 | |
1037 | /* Put length at the first point of the stream. */ | |
1038 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1039 | ||
0e51b4a3 RW |
1040 | return 0; |
1041 | } | |
1042 | ||
68a02e06 MS |
1043 | /* |
1044 | * Decode a single zapi nexthop object | |
1045 | */ | |
1046 | static int zapi_nexthop_decode(struct stream *s, struct zapi_nexthop *api_nh, | |
1047 | uint32_t api_flags) | |
1048 | { | |
1049 | int ret = -1; | |
1050 | ||
1051 | STREAM_GETL(s, api_nh->vrf_id); | |
1052 | STREAM_GETC(s, api_nh->type); | |
1053 | ||
1054 | /* Note that we're only using a single octet of flags */ | |
1055 | STREAM_GETC(s, api_nh->flags); | |
1056 | ||
1057 | switch (api_nh->type) { | |
1058 | case NEXTHOP_TYPE_BLACKHOLE: | |
1059 | STREAM_GETC(s, api_nh->bh_type); | |
1060 | break; | |
1061 | case NEXTHOP_TYPE_IPV4: | |
1062 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, | |
1063 | IPV4_MAX_BYTELEN); | |
1064 | break; | |
1065 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1066 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, | |
1067 | IPV4_MAX_BYTELEN); | |
1068 | STREAM_GETL(s, api_nh->ifindex); | |
1069 | break; | |
1070 | case NEXTHOP_TYPE_IFINDEX: | |
1071 | STREAM_GETL(s, api_nh->ifindex); | |
1072 | break; | |
1073 | case NEXTHOP_TYPE_IPV6: | |
1074 | STREAM_GET(&api_nh->gate.ipv6, s, 16); | |
1075 | break; | |
1076 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1077 | STREAM_GET(&api_nh->gate.ipv6, s, 16); | |
1078 | STREAM_GETL(s, api_nh->ifindex); | |
1079 | break; | |
1080 | } | |
1081 | ||
1082 | /* MPLS labels for BGP-LU or Segment Routing */ | |
1083 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL)) { | |
1084 | STREAM_GETC(s, api_nh->label_num); | |
1085 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1086 | flog_err( | |
1087 | EC_LIB_ZAPI_ENCODE, | |
1088 | "%s: invalid number of MPLS labels (%u)", | |
1089 | __func__, api_nh->label_num); | |
1090 | return -1; | |
1091 | } | |
1092 | ||
1093 | STREAM_GET(&api_nh->labels[0], s, | |
1094 | api_nh->label_num * sizeof(mpls_label_t)); | |
1095 | } | |
1096 | ||
bd054c1a DS |
1097 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_WEIGHT)) |
1098 | STREAM_GETL(s, api_nh->weight); | |
1099 | ||
68a02e06 MS |
1100 | /* Router MAC for EVPN routes. */ |
1101 | if (CHECK_FLAG(api_flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
1102 | STREAM_GET(&(api_nh->rmac), s, | |
1103 | sizeof(struct ethaddr)); | |
1104 | ||
1105 | /* Success */ | |
1106 | ret = 0; | |
1107 | ||
1108 | stream_failure: | |
1109 | ||
1110 | return ret; | |
1111 | } | |
1112 | ||
0e51b4a3 RW |
1113 | int zapi_route_decode(struct stream *s, struct zapi_route *api) |
1114 | { | |
1115 | struct zapi_nexthop *api_nh; | |
1116 | int i; | |
1117 | ||
1118 | memset(api, 0, sizeof(*api)); | |
1119 | ||
1120 | /* Type, flags, message. */ | |
ec93aa12 | 1121 | STREAM_GETC(s, api->type); |
e4081c0e | 1122 | if (api->type >= ZEBRA_ROUTE_MAX) { |
450971aa | 1123 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
1124 | "%s: Specified route type: %d is not a legal value\n", |
1125 | __PRETTY_FUNCTION__, api->type); | |
ec93aa12 DS |
1126 | return -1; |
1127 | } | |
1128 | ||
1129 | STREAM_GETW(s, api->instance); | |
1130 | STREAM_GETL(s, api->flags); | |
1131 | STREAM_GETC(s, api->message); | |
832d0f56 | 1132 | STREAM_GETC(s, api->safi); |
e4081c0e RW |
1133 | if (api->safi < SAFI_UNICAST || api->safi >= SAFI_MAX) { |
1134 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1135 | "%s: Specified route SAFI (%u) is not a legal value\n", | |
1136 | __PRETTY_FUNCTION__, api->safi); | |
1137 | return -1; | |
1138 | } | |
0e51b4a3 RW |
1139 | |
1140 | /* Prefix. */ | |
ec93aa12 DS |
1141 | STREAM_GETC(s, api->prefix.family); |
1142 | STREAM_GETC(s, api->prefix.prefixlen); | |
0e51b4a3 RW |
1143 | switch (api->prefix.family) { |
1144 | case AF_INET: | |
ec93aa12 | 1145 | if (api->prefix.prefixlen > IPV4_MAX_PREFIXLEN) { |
ade6974d | 1146 | flog_err( |
450971aa | 1147 | EC_LIB_ZAPI_ENCODE, |
ade6974d QY |
1148 | "%s: V4 prefixlen is %d which should not be more than 32", |
1149 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1150 | return -1; |
1151 | } | |
0e51b4a3 RW |
1152 | break; |
1153 | case AF_INET6: | |
ec93aa12 | 1154 | if (api->prefix.prefixlen > IPV6_MAX_PREFIXLEN) { |
ade6974d | 1155 | flog_err( |
450971aa | 1156 | EC_LIB_ZAPI_ENCODE, |
ade6974d QY |
1157 | "%s: v6 prefixlen is %d which should not be more than 128", |
1158 | __PRETTY_FUNCTION__, api->prefix.prefixlen); | |
ec93aa12 DS |
1159 | return -1; |
1160 | } | |
0e51b4a3 | 1161 | break; |
ec93aa12 | 1162 | default: |
450971aa | 1163 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
1164 | "%s: Specified family %d is not v4 or v6", |
1165 | __PRETTY_FUNCTION__, api->prefix.family); | |
ec93aa12 | 1166 | return -1; |
0e51b4a3 | 1167 | } |
ec93aa12 DS |
1168 | STREAM_GET(&api->prefix.u.prefix, s, PSIZE(api->prefix.prefixlen)); |
1169 | ||
0e51b4a3 RW |
1170 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { |
1171 | api->src_prefix.family = AF_INET6; | |
ec93aa12 DS |
1172 | STREAM_GETC(s, api->src_prefix.prefixlen); |
1173 | if (api->src_prefix.prefixlen > IPV6_MAX_PREFIXLEN) { | |
ade6974d | 1174 | flog_err( |
450971aa | 1175 | EC_LIB_ZAPI_ENCODE, |
ade6974d QY |
1176 | "%s: SRC Prefix prefixlen received: %d is too large", |
1177 | __PRETTY_FUNCTION__, api->src_prefix.prefixlen); | |
ec93aa12 DS |
1178 | return -1; |
1179 | } | |
1180 | STREAM_GET(&api->src_prefix.prefix, s, | |
0e51b4a3 RW |
1181 | PSIZE(api->src_prefix.prefixlen)); |
1182 | ||
1183 | if (api->prefix.family != AF_INET6 | |
ec93aa12 | 1184 | || api->src_prefix.prefixlen == 0) { |
ade6974d | 1185 | flog_err( |
450971aa | 1186 | EC_LIB_ZAPI_ENCODE, |
ade6974d QY |
1187 | "%s: SRC prefix specified in some manner that makes no sense", |
1188 | __PRETTY_FUNCTION__); | |
ec93aa12 DS |
1189 | return -1; |
1190 | } | |
0e51b4a3 RW |
1191 | } |
1192 | ||
1193 | /* Nexthops. */ | |
1194 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
ec93aa12 | 1195 | STREAM_GETW(s, api->nexthop_num); |
0e51b4a3 | 1196 | if (api->nexthop_num > MULTIPATH_NUM) { |
450971aa | 1197 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
1198 | "%s: invalid number of nexthops (%u)", |
1199 | __func__, api->nexthop_num); | |
0e51b4a3 RW |
1200 | return -1; |
1201 | } | |
1202 | ||
1203 | for (i = 0; i < api->nexthop_num; i++) { | |
1204 | api_nh = &api->nexthops[i]; | |
1205 | ||
68a02e06 MS |
1206 | if (zapi_nexthop_decode(s, api_nh, api->flags) != 0) |
1207 | return -1; | |
0e51b4a3 RW |
1208 | } |
1209 | } | |
1210 | ||
1211 | /* Attributes. */ | |
1212 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
ec93aa12 | 1213 | STREAM_GETC(s, api->distance); |
0e51b4a3 | 1214 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) |
ec93aa12 | 1215 | STREAM_GETL(s, api->metric); |
0e51b4a3 | 1216 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) |
ec93aa12 | 1217 | STREAM_GETL(s, api->tag); |
0e51b4a3 | 1218 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) |
ec93aa12 | 1219 | STREAM_GETL(s, api->mtu); |
ba1849ef DS |
1220 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1221 | STREAM_GETL(s, api->tableid); | |
0e51b4a3 RW |
1222 | |
1223 | return 0; | |
6a2b0d9a RW |
1224 | stream_failure: |
1225 | return -1; | |
657cde12 DS |
1226 | } |
1227 | ||
0313523d FR |
1228 | static void zapi_encode_prefix(struct stream *s, struct prefix *p, |
1229 | uint8_t family) | |
0031a6bb PG |
1230 | { |
1231 | struct prefix any; | |
1232 | ||
1233 | if (!p) { | |
1234 | memset(&any, 0, sizeof(any)); | |
1235 | any.family = family; | |
1236 | p = &any; | |
1237 | } | |
1238 | ||
1239 | stream_putc(s, p->family); | |
1240 | stream_putc(s, p->prefixlen); | |
1241 | stream_put(s, &p->u.prefix, prefix_blen(p)); | |
1242 | } | |
1243 | ||
0313523d | 1244 | int zapi_pbr_rule_encode(uint8_t cmd, struct stream *s, struct pbr_rule *zrule) |
0031a6bb PG |
1245 | { |
1246 | stream_reset(s); | |
1247 | zclient_create_header(s, cmd, zrule->vrf_id); | |
1248 | ||
1249 | /* | |
1250 | * We are sending one item at a time at the moment | |
1251 | */ | |
1252 | stream_putl(s, 1); | |
1253 | ||
1254 | stream_putl(s, zrule->seq); | |
1255 | stream_putl(s, zrule->priority); | |
1256 | stream_putl(s, zrule->unique); | |
1257 | ||
1258 | zapi_encode_prefix(s, &(zrule->filter.src_ip), | |
1259 | zrule->filter.src_ip.family); | |
0313523d | 1260 | stream_putw(s, zrule->filter.src_port); /* src port */ |
0031a6bb PG |
1261 | zapi_encode_prefix(s, &(zrule->filter.dst_ip), |
1262 | zrule->filter.src_ip.family); | |
0313523d FR |
1263 | stream_putw(s, zrule->filter.dst_port); /* dst port */ |
1264 | stream_putw(s, zrule->filter.fwmark); /* fwmark */ | |
0031a6bb PG |
1265 | |
1266 | stream_putl(s, zrule->action.table); | |
1267 | stream_putl(s, zrule->ifindex); | |
1268 | ||
1269 | /* Put length at the first point of the stream. */ | |
1270 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1271 | ||
1272 | return 0; | |
1273 | } | |
1274 | ||
7ea7b86e | 1275 | bool zapi_route_notify_decode(struct stream *s, struct prefix *p, |
28610f7e | 1276 | uint32_t *tableid, |
7ea7b86e DS |
1277 | enum zapi_route_notify_owner *note) |
1278 | { | |
7a1eb44b DS |
1279 | uint32_t t; |
1280 | ||
7ea7b86e DS |
1281 | STREAM_GET(note, s, sizeof(*note)); |
1282 | ||
1283 | STREAM_GETC(s, p->family); | |
1284 | STREAM_GETC(s, p->prefixlen); | |
996c9314 | 1285 | STREAM_GET(&p->u.prefix, s, prefix_blen(p)); |
7a1eb44b DS |
1286 | STREAM_GETL(s, t); |
1287 | ||
1288 | *tableid = t; | |
7ea7b86e DS |
1289 | |
1290 | return true; | |
1291 | ||
1292 | stream_failure: | |
1293 | return false; | |
1294 | } | |
1295 | ||
b6c5d343 DS |
1296 | bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno, |
1297 | uint32_t *priority, uint32_t *unique, | |
1298 | ifindex_t *ifindex, | |
1299 | enum zapi_rule_notify_owner *note) | |
1300 | { | |
1301 | uint32_t prio, seq, uni; | |
1302 | ifindex_t ifi; | |
1303 | ||
1304 | STREAM_GET(note, s, sizeof(*note)); | |
1305 | ||
1306 | STREAM_GETL(s, seq); | |
1307 | STREAM_GETL(s, prio); | |
1308 | STREAM_GETL(s, uni); | |
1309 | STREAM_GETL(s, ifi); | |
1310 | ||
1311 | if (zclient_debug) | |
0313523d FR |
1312 | zlog_debug("%s: %u %u %u %u", __PRETTY_FUNCTION__, seq, prio, |
1313 | uni, ifi); | |
b6c5d343 DS |
1314 | *seqno = seq; |
1315 | *priority = prio; | |
1316 | *unique = uni; | |
1317 | *ifindex = ifi; | |
1318 | ||
1319 | return true; | |
1320 | ||
1321 | stream_failure: | |
1322 | return false; | |
1323 | } | |
1324 | ||
0313523d FR |
1325 | bool zapi_ipset_notify_decode(struct stream *s, uint32_t *unique, |
1326 | enum zapi_ipset_notify_owner *note) | |
425bdd6b PG |
1327 | { |
1328 | uint32_t uni; | |
1329 | ||
1330 | STREAM_GET(note, s, sizeof(*note)); | |
1331 | ||
1332 | STREAM_GETL(s, uni); | |
1333 | ||
1334 | if (zclient_debug) | |
1335 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1336 | *unique = uni; | |
1337 | ||
1338 | return true; | |
1339 | ||
1340 | stream_failure: | |
1341 | return false; | |
1342 | } | |
1343 | ||
0313523d FR |
1344 | bool zapi_ipset_entry_notify_decode(struct stream *s, uint32_t *unique, |
1345 | char *ipset_name, | |
1346 | enum zapi_ipset_entry_notify_owner *note) | |
425bdd6b PG |
1347 | { |
1348 | uint32_t uni; | |
1349 | ||
1350 | STREAM_GET(note, s, sizeof(*note)); | |
1351 | ||
1352 | STREAM_GETL(s, uni); | |
1353 | ||
0313523d | 1354 | STREAM_GET(ipset_name, s, ZEBRA_IPSET_NAME_SIZE); |
425bdd6b PG |
1355 | |
1356 | if (zclient_debug) | |
1357 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1358 | *unique = uni; | |
1359 | ||
1360 | return true; | |
1361 | ||
1362 | stream_failure: | |
1363 | return false; | |
1364 | } | |
1365 | ||
c16a0a62 PG |
1366 | bool zapi_iptable_notify_decode(struct stream *s, |
1367 | uint32_t *unique, | |
1368 | enum zapi_iptable_notify_owner *note) | |
1369 | { | |
1370 | uint32_t uni; | |
1371 | ||
1372 | STREAM_GET(note, s, sizeof(*note)); | |
1373 | ||
1374 | STREAM_GETL(s, uni); | |
1375 | ||
1376 | if (zclient_debug) | |
1377 | zlog_debug("%s: %u", __PRETTY_FUNCTION__, uni); | |
1378 | *unique = uni; | |
1379 | ||
1380 | return true; | |
1381 | ||
1382 | stream_failure: | |
1383 | return false; | |
1384 | } | |
1385 | ||
4a749e2c DS |
1386 | struct nexthop *nexthop_from_zapi_nexthop(struct zapi_nexthop *znh) |
1387 | { | |
1388 | struct nexthop *n = nexthop_new(); | |
1389 | ||
1390 | n->type = znh->type; | |
4a7371e9 | 1391 | n->vrf_id = znh->vrf_id; |
4a749e2c DS |
1392 | n->ifindex = znh->ifindex; |
1393 | n->gate = znh->gate; | |
1394 | ||
1395 | /* | |
960035b2 | 1396 | * This function currently handles labels |
4a749e2c | 1397 | */ |
960035b2 PZ |
1398 | if (znh->label_num) { |
1399 | nexthop_add_labels(n, ZEBRA_LSP_NONE, znh->label_num, | |
0313523d | 1400 | znh->labels); |
960035b2 | 1401 | } |
4a749e2c DS |
1402 | |
1403 | return n; | |
1404 | } | |
1405 | ||
68a02e06 MS |
1406 | /* |
1407 | * Convert nexthop to zapi nexthop | |
1408 | */ | |
1409 | int zapi_nexthop_from_nexthop(struct zapi_nexthop *znh, | |
1410 | const struct nexthop *nh) | |
1411 | { | |
1412 | int i; | |
1413 | ||
1414 | memset(znh, 0, sizeof(*znh)); | |
1415 | ||
1416 | znh->type = nh->type; | |
1417 | znh->vrf_id = nh->vrf_id; | |
1418 | znh->ifindex = nh->ifindex; | |
1419 | znh->gate = nh->gate; | |
1420 | ||
1421 | if (nh->nh_label && (nh->nh_label->num_labels > 0)) { | |
1422 | for (i = 0; i < nh->nh_label->num_labels; i++) | |
1423 | znh->labels[i] = nh->nh_label->label[i]; | |
1424 | ||
1425 | znh->label_num = i; | |
1426 | SET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_LABEL); | |
1427 | } | |
1428 | ||
1429 | return 0; | |
1430 | } | |
1431 | ||
1432 | /* | |
1433 | * Decode the nexthop-tracking update message | |
1434 | */ | |
4a749e2c DS |
1435 | bool zapi_nexthop_update_decode(struct stream *s, struct zapi_route *nhr) |
1436 | { | |
1437 | uint32_t i; | |
1438 | ||
1439 | memset(nhr, 0, sizeof(*nhr)); | |
1440 | ||
1441 | STREAM_GETW(s, nhr->prefix.family); | |
1442 | STREAM_GETC(s, nhr->prefix.prefixlen); | |
996c9314 | 1443 | switch (nhr->prefix.family) { |
4a749e2c DS |
1444 | case AF_INET: |
1445 | STREAM_GET(&nhr->prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
1446 | break; | |
1447 | case AF_INET6: | |
1448 | STREAM_GET(&nhr->prefix.u.prefix6, s, IPV6_MAX_BYTELEN); | |
1449 | break; | |
1450 | default: | |
1451 | break; | |
1452 | } | |
1453 | ||
05dd5aaf DS |
1454 | STREAM_GETC(s, nhr->type); |
1455 | STREAM_GETW(s, nhr->instance); | |
4a749e2c DS |
1456 | STREAM_GETC(s, nhr->distance); |
1457 | STREAM_GETL(s, nhr->metric); | |
1458 | STREAM_GETC(s, nhr->nexthop_num); | |
1459 | ||
996c9314 | 1460 | for (i = 0; i < nhr->nexthop_num; i++) { |
68a02e06 MS |
1461 | if (zapi_nexthop_decode(s, &(nhr->nexthops[i]), 0) != 0) |
1462 | return -1; | |
4a749e2c DS |
1463 | } |
1464 | ||
1465 | return true; | |
1466 | stream_failure: | |
1467 | return false; | |
1468 | } | |
1469 | ||
9ab0b2a3 SW |
1470 | bool zapi_error_decode(struct stream *s, enum zebra_error_types *error) |
1471 | { | |
1472 | memset(error, 0, sizeof(*error)); | |
1473 | ||
1474 | STREAM_GET(error, s, sizeof(*error)); | |
1475 | ||
1476 | if (zclient_debug) | |
1477 | zlog_debug("%s: type: %s", __func__, | |
1478 | zebra_error_type2str(*error)); | |
1479 | ||
1480 | return true; | |
1481 | stream_failure: | |
1482 | return false; | |
1483 | } | |
1484 | ||
d62a17ae | 1485 | /* |
0a589359 | 1486 | * send a ZEBRA_REDISTRIBUTE_ADD or ZEBRA_REDISTRIBUTE_DELETE |
1487 | * for the route type (ZEBRA_ROUTE_KERNEL etc.). The zebra server will | |
d62a17ae | 1488 | * then set/unset redist[type] in the client handle (a struct zserv) for the |
0a589359 | 1489 | * sending client |
1490 | */ | |
d62a17ae | 1491 | int zebra_redistribute_send(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 1492 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 1493 | { |
d62a17ae | 1494 | struct stream *s; |
1495 | ||
1496 | s = zclient->obuf; | |
1497 | stream_reset(s); | |
1498 | ||
1499 | zclient_create_header(s, command, vrf_id); | |
1500 | stream_putc(s, afi); | |
1501 | stream_putc(s, type); | |
1502 | stream_putw(s, instance); | |
1503 | ||
1504 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1505 | ||
1506 | return zclient_send_message(zclient); | |
718e3744 | 1507 | } |
1508 | ||
49db7a7b RW |
1509 | int zebra_redistribute_default_send(int command, struct zclient *zclient, |
1510 | afi_t afi, vrf_id_t vrf_id) | |
1511 | { | |
1512 | struct stream *s; | |
1513 | ||
1514 | s = zclient->obuf; | |
1515 | stream_reset(s); | |
1516 | ||
1517 | zclient_create_header(s, command, vrf_id); | |
1518 | stream_putc(s, afi); | |
1519 | ||
1520 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1521 | ||
1522 | return zclient_send_message(zclient); | |
1523 | } | |
1524 | ||
d9178828 | 1525 | /* Get prefix in ZServ format; family should be filled in on prefix */ |
d62a17ae | 1526 | static void zclient_stream_get_prefix(struct stream *s, struct prefix *p) |
d9178828 | 1527 | { |
d62a17ae | 1528 | size_t plen = prefix_blen(p); |
d7c0a89a | 1529 | uint8_t c; |
d62a17ae | 1530 | p->prefixlen = 0; |
1531 | ||
1532 | if (plen == 0) | |
1533 | return; | |
1534 | ||
1535 | stream_get(&p->u.prefix, s, plen); | |
ec93aa12 | 1536 | STREAM_GETC(s, c); |
d62a17ae | 1537 | p->prefixlen = MIN(plen * 8, c); |
ec93aa12 DS |
1538 | |
1539 | stream_failure: | |
1540 | return; | |
d9178828 PJ |
1541 | } |
1542 | ||
18a6dce6 | 1543 | /* Router-id update from zebra daemon. */ |
d62a17ae | 1544 | void zebra_router_id_update_read(struct stream *s, struct prefix *rid) |
18a6dce6 | 1545 | { |
d62a17ae | 1546 | /* Fetch interface address. */ |
ec93aa12 | 1547 | STREAM_GETC(s, rid->family); |
d62a17ae | 1548 | |
1549 | zclient_stream_get_prefix(s, rid); | |
ec93aa12 DS |
1550 | |
1551 | stream_failure: | |
1552 | return; | |
18a6dce6 | 1553 | } |
1554 | ||
718e3744 | 1555 | /* Interface addition from zebra daemon. */ |
d62a17ae | 1556 | /* |
0a589359 | 1557 | * The format of the message sent with type ZEBRA_INTERFACE_ADD or |
1558 | * ZEBRA_INTERFACE_DELETE from zebra to the client is: | |
1559 | * 0 1 2 3 | |
1560 | * 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 | 1561 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1562 | * | ifname | | |
1563 | * | | | |
1564 | * | | | |
1565 | * | | | |
1566 | * | | | |
1567 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1568 | * | ifindex | |
1569 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1570 | * | status | | |
0a589359 | 1571 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1572 | * | if_flags | |
c77d4546 | 1573 | * | | |
0a589359 | 1574 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1575 | * | metric | |
1576 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2d7f0d76 DS |
1577 | * | speed | |
1578 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
1579 | * | ifmtu | |
1580 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1581 | * | ifmtu6 | | |
1582 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
1583 | * | bandwidth | | |
1584 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
53e60e5c QY |
1585 | * | parent ifindex | |
1586 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee | 1587 | * | Link Layer Type | |
0a589359 | 1588 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1589 | * | Harware Address Length | |
0a589359 | 1590 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1591 | * | Hardware Address if HW lenght different from 0 | |
1592 | * | ... max INTERFACE_HWADDR_MAX | | |
0a589359 | 1593 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 1594 | * | Link_params? | Whether a link-params follows: 1 or 0. |
0a589359 | 1595 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
1596 | * | Link_params 0 or 1 INTERFACE_LINK_PARAMS_SIZE sized | |
1597 | * | .... (struct if_link_params). | | |
0a589359 | 1598 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1599 | */ | |
1600 | ||
d62a17ae | 1601 | static void zclient_vrf_add(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1602 | { |
d62a17ae | 1603 | struct vrf *vrf; |
1604 | char vrfname_tmp[VRF_NAMSIZ]; | |
1605 | struct vrf_data data; | |
1892f15e | 1606 | |
d62a17ae | 1607 | stream_get(&data, zclient->ibuf, sizeof(struct vrf_data)); |
1608 | /* Read interface name. */ | |
1609 | stream_get(vrfname_tmp, zclient->ibuf, VRF_NAMSIZ); | |
1892f15e | 1610 | |
d62a17ae | 1611 | /* Lookup/create vrf by vrf_id. */ |
1612 | vrf = vrf_get(vrf_id, vrfname_tmp); | |
4691b65a PG |
1613 | vrf->data.l.table_id = data.l.table_id; |
1614 | memcpy(vrf->data.l.netns_name, data.l.netns_name, NS_NAMSIZ); | |
4931a365 PG |
1615 | /* overwrite default vrf */ |
1616 | if (vrf_id == VRF_DEFAULT) | |
4fe52e76 | 1617 | vrf_set_default_name(vrfname_tmp, false); |
d62a17ae | 1618 | vrf_enable(vrf); |
1892f15e DS |
1619 | } |
1620 | ||
d62a17ae | 1621 | static void zclient_vrf_delete(struct zclient *zclient, vrf_id_t vrf_id) |
1892f15e | 1622 | { |
d62a17ae | 1623 | struct vrf *vrf; |
1892f15e | 1624 | |
d62a17ae | 1625 | /* Lookup vrf by vrf_id. */ |
1626 | vrf = vrf_lookup_by_id(vrf_id); | |
1892f15e | 1627 | |
d62a17ae | 1628 | /* |
1629 | * If a routing protocol doesn't know about a | |
1630 | * vrf that is about to be deleted. There is | |
1631 | * no point in attempting to delete it. | |
1632 | */ | |
1633 | if (!vrf) | |
1634 | return; | |
beef1990 | 1635 | |
d62a17ae | 1636 | vrf_delete(vrf); |
1892f15e DS |
1637 | } |
1638 | ||
ef7bd2a3 | 1639 | static void zclient_interface_add(struct zclient *zclient, vrf_id_t vrf_id) |
718e3744 | 1640 | { |
d62a17ae | 1641 | struct interface *ifp; |
1642 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
ef7bd2a3 | 1643 | struct stream *s = zclient->ibuf; |
718e3744 | 1644 | |
d62a17ae | 1645 | /* Read interface name. */ |
1646 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
718e3744 | 1647 | |
d62a17ae | 1648 | /* Lookup/create interface by name. */ |
a36898e7 | 1649 | ifp = if_get_by_name(ifname_tmp, vrf_id); |
a41c4e1b | 1650 | |
d62a17ae | 1651 | zebra_interface_if_set_value(s, ifp); |
718e3744 | 1652 | |
ef7bd2a3 | 1653 | if_new_via_zapi(ifp); |
718e3744 | 1654 | } |
1655 | ||
d62a17ae | 1656 | /* |
0a589359 | 1657 | * Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN) |
1658 | * from zebra server. The format of this message is the same as | |
ef7bd2a3 DS |
1659 | * that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE, |
1660 | * except that no sockaddr_dl is sent at the tail of the message. | |
0a589359 | 1661 | */ |
d62a17ae | 1662 | struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 1663 | { |
d62a17ae | 1664 | struct interface *ifp; |
1665 | char ifname_tmp[INTERFACE_NAMSIZ]; | |
1666 | ||
1667 | /* Read interface name. */ | |
1668 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
1669 | ||
1670 | /* Lookup this by interface index. */ | |
a36898e7 | 1671 | ifp = if_lookup_by_name(ifname_tmp, vrf_id); |
d62a17ae | 1672 | if (ifp == NULL) { |
450971aa | 1673 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
1674 | "INTERFACE_STATE: Cannot find IF %s in VRF %d", |
1675 | ifname_tmp, vrf_id); | |
d62a17ae | 1676 | return NULL; |
1677 | } | |
1678 | ||
1679 | zebra_interface_if_set_value(s, ifp); | |
1680 | ||
1681 | return ifp; | |
718e3744 | 1682 | } |
1683 | ||
3c3c3252 DS |
1684 | static void zclient_interface_delete(struct zclient *zclient, vrf_id_t vrf_id) |
1685 | { | |
1686 | struct interface *ifp; | |
1687 | struct stream *s = zclient->ibuf; | |
1688 | ||
1689 | ifp = zebra_interface_state_read(s, vrf_id); | |
1690 | ||
1691 | if (ifp == NULL) | |
1692 | return; | |
1693 | ||
1694 | if_destroy_via_zapi(ifp); | |
1695 | return; | |
1696 | } | |
1697 | ||
ddbf3e60 DS |
1698 | static void zclient_interface_up(struct zclient *zclient, vrf_id_t vrf_id) |
1699 | { | |
1700 | struct interface *ifp; | |
1701 | struct stream *s = zclient->ibuf; | |
1702 | ||
1703 | ifp = zebra_interface_state_read(s, vrf_id); | |
1704 | ||
1705 | if (!ifp) | |
1706 | return; | |
1707 | ||
1708 | if_up_via_zapi(ifp); | |
1709 | } | |
1710 | ||
b0b69e59 DS |
1711 | static void zclient_interface_down(struct zclient *zclient, vrf_id_t vrf_id) |
1712 | { | |
1713 | struct interface *ifp; | |
1714 | struct stream *s = zclient->ibuf; | |
1715 | ||
1716 | ifp = zebra_interface_state_read(s, vrf_id); | |
1717 | ||
1718 | if (!ifp) | |
1719 | return; | |
1720 | ||
1721 | if_down_via_zapi(ifp); | |
1722 | } | |
1723 | ||
9ab0b2a3 SW |
1724 | static void zclient_handle_error(ZAPI_CALLBACK_ARGS) |
1725 | { | |
1726 | enum zebra_error_types error; | |
1727 | struct stream *s = zclient->ibuf; | |
1728 | ||
1729 | zapi_error_decode(s, &error); | |
1730 | ||
1731 | if (zclient->handle_error) | |
1732 | (*zclient->handle_error)(error); | |
1733 | } | |
1734 | ||
d62a17ae | 1735 | static void link_params_set_value(struct stream *s, struct if_link_params *iflp) |
16f1b9ee OD |
1736 | { |
1737 | ||
d62a17ae | 1738 | if (iflp == NULL) |
1739 | return; | |
1740 | ||
1741 | iflp->lp_status = stream_getl(s); | |
1742 | iflp->te_metric = stream_getl(s); | |
1743 | iflp->max_bw = stream_getf(s); | |
1744 | iflp->max_rsv_bw = stream_getf(s); | |
1745 | uint32_t bwclassnum = stream_getl(s); | |
1746 | { | |
1747 | unsigned int i; | |
1748 | for (i = 0; i < bwclassnum && i < MAX_CLASS_TYPE; i++) | |
1749 | iflp->unrsv_bw[i] = stream_getf(s); | |
1750 | if (i < bwclassnum) | |
1c50c1c0 QY |
1751 | flog_err( |
1752 | EC_LIB_ZAPI_MISSMATCH, | |
1753 | "%s: received %d > %d (MAX_CLASS_TYPE) bw entries" | |
1754 | " - outdated library?", | |
1755 | __func__, bwclassnum, MAX_CLASS_TYPE); | |
d62a17ae | 1756 | } |
1757 | iflp->admin_grp = stream_getl(s); | |
1758 | iflp->rmt_as = stream_getl(s); | |
1759 | iflp->rmt_ip.s_addr = stream_get_ipv4(s); | |
1760 | ||
1761 | iflp->av_delay = stream_getl(s); | |
1762 | iflp->min_delay = stream_getl(s); | |
1763 | iflp->max_delay = stream_getl(s); | |
1764 | iflp->delay_var = stream_getl(s); | |
1765 | ||
1766 | iflp->pkt_loss = stream_getf(s); | |
1767 | iflp->res_bw = stream_getf(s); | |
1768 | iflp->ava_bw = stream_getf(s); | |
1769 | iflp->use_bw = stream_getf(s); | |
16f1b9ee OD |
1770 | } |
1771 | ||
edc12762 RW |
1772 | struct interface *zebra_interface_link_params_read(struct stream *s, |
1773 | vrf_id_t vrf_id) | |
16f1b9ee | 1774 | { |
d62a17ae | 1775 | struct if_link_params *iflp; |
1776 | ifindex_t ifindex; | |
c28e5b2a | 1777 | |
d62a17ae | 1778 | assert(s); |
c28e5b2a | 1779 | |
d62a17ae | 1780 | ifindex = stream_getl(s); |
16f1b9ee | 1781 | |
a36898e7 | 1782 | struct interface *ifp = if_lookup_by_index(ifindex, vrf_id); |
16f1b9ee | 1783 | |
d62a17ae | 1784 | if (ifp == NULL) { |
450971aa | 1785 | flog_err(EC_LIB_ZAPI_ENCODE, |
1c50c1c0 QY |
1786 | "%s: unknown ifindex %u, shouldn't happen", __func__, |
1787 | ifindex); | |
d62a17ae | 1788 | return NULL; |
1789 | } | |
16f1b9ee | 1790 | |
d62a17ae | 1791 | if ((iflp = if_link_params_get(ifp)) == NULL) |
1792 | return NULL; | |
16f1b9ee | 1793 | |
d62a17ae | 1794 | link_params_set_value(s, iflp); |
16f1b9ee | 1795 | |
d62a17ae | 1796 | return ifp; |
16f1b9ee OD |
1797 | } |
1798 | ||
26f8f6fe DS |
1799 | static void zebra_interface_if_set_value(struct stream *s, |
1800 | struct interface *ifp) | |
16f1b9ee | 1801 | { |
d7c0a89a | 1802 | uint8_t link_params_status = 0; |
98cbbaea | 1803 | ifindex_t old_ifindex; |
d62a17ae | 1804 | |
98cbbaea | 1805 | old_ifindex = ifp->ifindex; |
d62a17ae | 1806 | /* Read interface's index. */ |
ff880b78 | 1807 | if_set_index(ifp, stream_getl(s)); |
d62a17ae | 1808 | ifp->status = stream_getc(s); |
1809 | ||
1810 | /* Read interface's value. */ | |
1811 | ifp->flags = stream_getq(s); | |
1812 | ifp->ptm_enable = stream_getc(s); | |
1813 | ifp->ptm_status = stream_getc(s); | |
1814 | ifp->metric = stream_getl(s); | |
1815 | ifp->speed = stream_getl(s); | |
1816 | ifp->mtu = stream_getl(s); | |
1817 | ifp->mtu6 = stream_getl(s); | |
1818 | ifp->bandwidth = stream_getl(s); | |
53e60e5c | 1819 | ifp->link_ifindex = stream_getl(s); |
d62a17ae | 1820 | ifp->ll_type = stream_getl(s); |
1821 | ifp->hw_addr_len = stream_getl(s); | |
1822 | if (ifp->hw_addr_len) | |
1823 | stream_get(ifp->hw_addr, s, | |
1824 | MIN(ifp->hw_addr_len, INTERFACE_HWADDR_MAX)); | |
1825 | ||
1826 | /* Read Traffic Engineering status */ | |
1827 | link_params_status = stream_getc(s); | |
1828 | /* Then, Traffic Engineering parameters if any */ | |
1829 | if (link_params_status) { | |
1830 | struct if_link_params *iflp = if_link_params_get(ifp); | |
1831 | link_params_set_value(s, iflp); | |
1832 | } | |
98cbbaea DS |
1833 | |
1834 | nexthop_group_interface_state_change(ifp, old_ifindex); | |
16f1b9ee OD |
1835 | } |
1836 | ||
d62a17ae | 1837 | size_t zebra_interface_link_params_write(struct stream *s, |
1838 | struct interface *ifp) | |
16f1b9ee | 1839 | { |
d62a17ae | 1840 | size_t w; |
1841 | struct if_link_params *iflp; | |
1842 | int i; | |
16f1b9ee | 1843 | |
d62a17ae | 1844 | if (s == NULL || ifp == NULL || ifp->link_params == NULL) |
1845 | return 0; | |
16f1b9ee | 1846 | |
d62a17ae | 1847 | iflp = ifp->link_params; |
1848 | w = 0; | |
16f1b9ee | 1849 | |
d62a17ae | 1850 | w += stream_putl(s, iflp->lp_status); |
16f1b9ee | 1851 | |
d62a17ae | 1852 | w += stream_putl(s, iflp->te_metric); |
1853 | w += stream_putf(s, iflp->max_bw); | |
1854 | w += stream_putf(s, iflp->max_rsv_bw); | |
16f1b9ee | 1855 | |
d62a17ae | 1856 | w += stream_putl(s, MAX_CLASS_TYPE); |
1857 | for (i = 0; i < MAX_CLASS_TYPE; i++) | |
1858 | w += stream_putf(s, iflp->unrsv_bw[i]); | |
16f1b9ee | 1859 | |
d62a17ae | 1860 | w += stream_putl(s, iflp->admin_grp); |
1861 | w += stream_putl(s, iflp->rmt_as); | |
1862 | w += stream_put_in_addr(s, &iflp->rmt_ip); | |
16f1b9ee | 1863 | |
d62a17ae | 1864 | w += stream_putl(s, iflp->av_delay); |
1865 | w += stream_putl(s, iflp->min_delay); | |
1866 | w += stream_putl(s, iflp->max_delay); | |
1867 | w += stream_putl(s, iflp->delay_var); | |
16f1b9ee | 1868 | |
d62a17ae | 1869 | w += stream_putf(s, iflp->pkt_loss); |
1870 | w += stream_putf(s, iflp->res_bw); | |
1871 | w += stream_putf(s, iflp->ava_bw); | |
1872 | w += stream_putf(s, iflp->use_bw); | |
16f1b9ee | 1873 | |
d62a17ae | 1874 | return w; |
16f1b9ee OD |
1875 | } |
1876 | ||
1877 | /* | |
0a589359 | 1878 | * format of message for address additon is: |
1879 | * 0 | |
1880 | * 0 1 2 3 4 5 6 7 | |
1881 | * +-+-+-+-+-+-+-+-+ | |
1882 | * | type | ZEBRA_INTERFACE_ADDRESS_ADD or | |
1883 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_ADDRES_DELETE | |
1884 | * | | | |
1885 | * + + | |
1886 | * | ifindex | | |
1887 | * + + | |
1888 | * | | | |
1889 | * + + | |
1890 | * | | | |
1891 | * +-+-+-+-+-+-+-+-+ | |
1892 | * | ifc_flags | flags for connected address | |
1893 | * +-+-+-+-+-+-+-+-+ | |
1894 | * | addr_family | | |
1895 | * +-+-+-+-+-+-+-+-+ | |
1896 | * | addr... | | |
1897 | * : : | |
1898 | * | | | |
1899 | * +-+-+-+-+-+-+-+-+ | |
1900 | * | addr_len | len of addr. E.g., addr_len = 4 for ipv4 addrs. | |
1901 | * +-+-+-+-+-+-+-+-+ | |
1902 | * | daddr.. | | |
1903 | * : : | |
1904 | * | | | |
1905 | * +-+-+-+-+-+-+-+-+ | |
0a589359 | 1906 | */ |
1907 | ||
d62a17ae | 1908 | static int memconstant(const void *s, int c, size_t n) |
3fb9cd6e | 1909 | { |
d7c0a89a | 1910 | const uint8_t *p = s; |
3fb9cd6e | 1911 | |
d62a17ae | 1912 | while (n-- > 0) |
1913 | if (*p++ != c) | |
1914 | return 0; | |
1915 | return 1; | |
3fb9cd6e | 1916 | } |
1917 | ||
d5a5c8f0 | 1918 | |
d62a17ae | 1919 | struct connected *zebra_interface_address_read(int type, struct stream *s, |
1920 | vrf_id_t vrf_id) | |
718e3744 | 1921 | { |
d62a17ae | 1922 | ifindex_t ifindex; |
1923 | struct interface *ifp; | |
1924 | struct connected *ifc; | |
1925 | struct prefix p, d, *dp; | |
1926 | int plen; | |
d7c0a89a | 1927 | uint8_t ifc_flags; |
d62a17ae | 1928 | |
1929 | memset(&p, 0, sizeof(p)); | |
1930 | memset(&d, 0, sizeof(d)); | |
1931 | ||
1932 | /* Get interface index. */ | |
1933 | ifindex = stream_getl(s); | |
1934 | ||
1935 | /* Lookup index. */ | |
1936 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
1937 | if (ifp == NULL) { | |
450971aa | 1938 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
1939 | "INTERFACE_ADDRESS_%s: Cannot find IF %u in VRF %d", |
1940 | (type == ZEBRA_INTERFACE_ADDRESS_ADD) ? "ADD" : "DEL", | |
1941 | ifindex, vrf_id); | |
d62a17ae | 1942 | return NULL; |
1943 | } | |
1944 | ||
1945 | /* Fetch flag. */ | |
1946 | ifc_flags = stream_getc(s); | |
1947 | ||
1948 | /* Fetch interface address. */ | |
1949 | d.family = p.family = stream_getc(s); | |
1950 | plen = prefix_blen(&d); | |
1951 | ||
1952 | zclient_stream_get_prefix(s, &p); | |
1953 | ||
1954 | /* Fetch destination address. */ | |
1955 | stream_get(&d.u.prefix, s, plen); | |
1956 | ||
1957 | /* N.B. NULL destination pointers are encoded as all zeroes */ | |
1958 | dp = memconstant(&d.u.prefix, 0, plen) ? NULL : &d; | |
1959 | ||
1960 | if (type == ZEBRA_INTERFACE_ADDRESS_ADD) { | |
1961 | ifc = connected_lookup_prefix_exact(ifp, &p); | |
1962 | if (!ifc) { | |
1963 | /* N.B. NULL destination pointers are encoded as all | |
1964 | * zeroes */ | |
1965 | ifc = connected_add_by_prefix(ifp, &p, dp); | |
1966 | } | |
1967 | if (ifc) { | |
1968 | ifc->flags = ifc_flags; | |
1969 | if (ifc->destination) | |
1970 | ifc->destination->prefixlen = | |
1971 | ifc->address->prefixlen; | |
1972 | else if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { | |
1973 | /* carp interfaces on OpenBSD with 0.0.0.0/0 as | |
1974 | * "peer" */ | |
1975 | char buf[PREFIX_STRLEN]; | |
ade6974d | 1976 | flog_err( |
450971aa | 1977 | EC_LIB_ZAPI_ENCODE, |
ade6974d QY |
1978 | "warning: interface %s address %s with peer flag set, but no peer address!", |
1979 | ifp->name, | |
1980 | prefix2str(ifc->address, buf, | |
1981 | sizeof buf)); | |
d62a17ae | 1982 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); |
1983 | } | |
1984 | } | |
1985 | } else { | |
1986 | assert(type == ZEBRA_INTERFACE_ADDRESS_DELETE); | |
1987 | ifc = connected_delete_by_prefix(ifp, &p); | |
1988 | } | |
1989 | ||
1990 | return ifc; | |
718e3744 | 1991 | } |
0a589359 | 1992 | |
a80beece DS |
1993 | /* |
1994 | * format of message for neighbor connected address is: | |
1995 | * 0 | |
1996 | * 0 1 2 3 4 5 6 7 | |
1997 | * +-+-+-+-+-+-+-+-+ | |
1998 | * | type | ZEBRA_INTERFACE_NBR_ADDRESS_ADD or | |
1999 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_NBR_ADDRES_DELETE | |
2000 | * | | | |
2001 | * + + | |
2002 | * | ifindex | | |
2003 | * + + | |
2004 | * | | | |
2005 | * + + | |
2006 | * | | | |
2007 | * +-+-+-+-+-+-+-+-+ | |
2008 | * | addr_family | | |
2009 | * +-+-+-+-+-+-+-+-+ | |
2010 | * | addr... | | |
2011 | * : : | |
2012 | * | | | |
2013 | * +-+-+-+-+-+-+-+-+ | |
2014 | * | addr_len | len of addr. | |
2015 | * +-+-+-+-+-+-+-+-+ | |
2016 | */ | |
2017 | struct nbr_connected * | |
d62a17ae | 2018 | zebra_interface_nbr_address_read(int type, struct stream *s, vrf_id_t vrf_id) |
a80beece | 2019 | { |
d62a17ae | 2020 | unsigned int ifindex; |
2021 | struct interface *ifp; | |
2022 | struct prefix p; | |
2023 | struct nbr_connected *ifc; | |
2024 | ||
2025 | /* Get interface index. */ | |
2026 | ifindex = stream_getl(s); | |
2027 | ||
2028 | /* Lookup index. */ | |
2029 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
2030 | if (ifp == NULL) { | |
450971aa | 2031 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
2032 | "INTERFACE_NBR_%s: Cannot find IF %u in VRF %d", |
2033 | (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) ? "ADD" | |
ade6974d QY |
2034 | : "DELETE", |
2035 | ifindex, vrf_id); | |
d62a17ae | 2036 | return NULL; |
2037 | } | |
2038 | ||
2039 | p.family = stream_getc(s); | |
2040 | stream_get(&p.u.prefix, s, prefix_blen(&p)); | |
2041 | p.prefixlen = stream_getc(s); | |
2042 | ||
2043 | if (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) { | |
2044 | /* Currently only supporting P2P links, so any new RA source | |
2045 | address is | |
2046 | considered as the replacement of the previously learnt | |
2047 | Link-Local address. */ | |
2048 | if (!(ifc = listnode_head(ifp->nbr_connected))) { | |
2049 | ifc = nbr_connected_new(); | |
2050 | ifc->address = prefix_new(); | |
2051 | ifc->ifp = ifp; | |
2052 | listnode_add(ifp->nbr_connected, ifc); | |
2053 | } | |
2054 | ||
2055 | prefix_copy(ifc->address, &p); | |
2056 | } else { | |
2057 | assert(type == ZEBRA_INTERFACE_NBR_ADDRESS_DELETE); | |
2058 | ||
2059 | ifc = nbr_connected_check(ifp, &p); | |
2060 | if (ifc) | |
2061 | listnode_delete(ifp->nbr_connected, ifc); | |
2062 | } | |
2063 | ||
2064 | return ifc; | |
a80beece | 2065 | } |
6b0655a2 | 2066 | |
d62a17ae | 2067 | struct interface *zebra_interface_vrf_update_read(struct stream *s, |
2068 | vrf_id_t vrf_id, | |
2069 | vrf_id_t *new_vrf_id) | |
c8e264b6 | 2070 | { |
91d227b7 | 2071 | char ifname[INTERFACE_NAMSIZ]; |
d62a17ae | 2072 | struct interface *ifp; |
a9ff90c4 | 2073 | vrf_id_t new_id; |
d62a17ae | 2074 | |
91d227b7 RW |
2075 | /* Read interface name. */ |
2076 | stream_get(ifname, s, INTERFACE_NAMSIZ); | |
d62a17ae | 2077 | |
2078 | /* Lookup interface. */ | |
a36898e7 | 2079 | ifp = if_lookup_by_name(ifname, vrf_id); |
d62a17ae | 2080 | if (ifp == NULL) { |
450971aa | 2081 | flog_err(EC_LIB_ZAPI_ENCODE, |
91d227b7 RW |
2082 | "INTERFACE_VRF_UPDATE: Cannot find IF %s in VRF %d", |
2083 | ifname, vrf_id); | |
d62a17ae | 2084 | return NULL; |
2085 | } | |
2086 | ||
2087 | /* Fetch new VRF Id. */ | |
66cd1bb3 | 2088 | new_id = stream_getl(s); |
d62a17ae | 2089 | |
2090 | *new_vrf_id = new_id; | |
2091 | return ifp; | |
c8e264b6 | 2092 | } |
5c7ef8dc | 2093 | |
2094 | /* filter unwanted messages until the expected one arrives */ | |
d62a17ae | 2095 | static int zclient_read_sync_response(struct zclient *zclient, |
d7c0a89a | 2096 | uint16_t expected_cmd) |
5c7ef8dc | 2097 | { |
d62a17ae | 2098 | struct stream *s; |
d7c0a89a QY |
2099 | uint16_t size = -1; |
2100 | uint8_t marker; | |
2101 | uint8_t version; | |
d62a17ae | 2102 | vrf_id_t vrf_id; |
d7c0a89a | 2103 | uint16_t cmd; |
d62a17ae | 2104 | fd_set readfds; |
2105 | int ret; | |
2106 | ||
2107 | ret = 0; | |
2108 | cmd = expected_cmd + 1; | |
2109 | while (ret == 0 && cmd != expected_cmd) { | |
2110 | s = zclient->ibuf; | |
2111 | stream_reset(s); | |
2112 | ||
2113 | /* wait until response arrives */ | |
2114 | FD_ZERO(&readfds); | |
2115 | FD_SET(zclient->sock, &readfds); | |
2116 | select(zclient->sock + 1, &readfds, NULL, NULL, NULL); | |
2117 | if (!FD_ISSET(zclient->sock, &readfds)) | |
2118 | continue; | |
2119 | /* read response */ | |
2120 | ret = zclient_read_header(s, zclient->sock, &size, &marker, | |
2121 | &version, &vrf_id, &cmd); | |
2122 | if (zclient_debug) | |
2123 | zlog_debug("%s: Response (%d bytes) received", __func__, | |
2124 | size); | |
2125 | } | |
2126 | if (ret != 0) { | |
1c50c1c0 QY |
2127 | flog_err(EC_LIB_ZAPI_ENCODE, "%s: Invalid Sync Message Reply", |
2128 | __func__); | |
d62a17ae | 2129 | return -1; |
2130 | } | |
2131 | ||
2132 | return 0; | |
5c7ef8dc | 2133 | } |
fea12efb | 2134 | /** |
2135 | * Connect to label manager in a syncronous way | |
2136 | * | |
2137 | * It first writes the request to zcient output buffer and then | |
2138 | * immediately reads the answer from the input buffer. | |
2139 | * | |
2140 | * @param zclient Zclient used to connect to label manager (zebra) | |
f533be73 | 2141 | * @param async Synchronous (0) or asynchronous (1) operation |
fea12efb | 2142 | * @result Result of response |
2143 | */ | |
f533be73 | 2144 | int lm_label_manager_connect(struct zclient *zclient, int async) |
fea12efb | 2145 | { |
d62a17ae | 2146 | int ret; |
2147 | struct stream *s; | |
d7c0a89a | 2148 | uint8_t result; |
f533be73 | 2149 | uint16_t cmd = async ? ZEBRA_LABEL_MANAGER_CONNECT_ASYNC : |
2150 | ZEBRA_LABEL_MANAGER_CONNECT; | |
d62a17ae | 2151 | |
2152 | if (zclient_debug) | |
35cbe02a | 2153 | zlog_debug("Connecting to Label Manager (LM)"); |
d62a17ae | 2154 | |
f533be73 | 2155 | if (zclient->sock < 0) { |
2156 | zlog_debug("%s: invalid zclient socket", __func__); | |
d62a17ae | 2157 | return -1; |
f533be73 | 2158 | } |
d62a17ae | 2159 | |
2160 | /* send request */ | |
2161 | s = zclient->obuf; | |
2162 | stream_reset(s); | |
f533be73 | 2163 | zclient_create_header(s, cmd, VRF_DEFAULT); |
d62a17ae | 2164 | |
2165 | /* proto */ | |
2166 | stream_putc(s, zclient->redist_default); | |
2167 | /* instance */ | |
2168 | stream_putw(s, zclient->instance); | |
2169 | ||
2170 | /* Put length at the first point of the stream. */ | |
2171 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2172 | ||
2173 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2174 | if (ret < 0) { | |
450971aa | 2175 | flog_err(EC_LIB_ZAPI_SOCKET, "Can't write to zclient sock"); |
d62a17ae | 2176 | close(zclient->sock); |
2177 | zclient->sock = -1; | |
2178 | return -1; | |
2179 | } | |
2180 | if (ret == 0) { | |
450971aa | 2181 | flog_err(EC_LIB_ZAPI_SOCKET, "Zclient sock closed"); |
d62a17ae | 2182 | close(zclient->sock); |
2183 | zclient->sock = -1; | |
2184 | return -1; | |
2185 | } | |
2186 | if (zclient_debug) | |
35cbe02a | 2187 | zlog_debug("LM connect request sent (%d bytes)", ret); |
d62a17ae | 2188 | |
f533be73 | 2189 | if (async) |
2190 | return 0; | |
2191 | ||
d62a17ae | 2192 | /* read response */ |
f533be73 | 2193 | if (zclient_read_sync_response(zclient, cmd) |
d62a17ae | 2194 | != 0) |
2195 | return -1; | |
2196 | ||
d62a17ae | 2197 | s = zclient->ibuf; |
5dffb0e9 FR |
2198 | |
2199 | /* read instance and proto */ | |
2200 | uint8_t proto = stream_getc(s); | |
2201 | uint16_t instance = stream_getw(s); | |
2202 | ||
2203 | /* sanity */ | |
2204 | if (proto != zclient->redist_default) | |
1c50c1c0 QY |
2205 | flog_err( |
2206 | EC_LIB_ZAPI_ENCODE, | |
2207 | "Wrong proto (%u) in LM connect response. Should be %u", | |
2208 | proto, zclient->redist_default); | |
5dffb0e9 | 2209 | if (instance != zclient->instance) |
1c50c1c0 QY |
2210 | flog_err( |
2211 | EC_LIB_ZAPI_ENCODE, | |
2212 | "Wrong instId (%u) in LM connect response. Should be %u", | |
2213 | instance, zclient->instance); | |
5dffb0e9 FR |
2214 | |
2215 | /* result code */ | |
d62a17ae | 2216 | result = stream_getc(s); |
2217 | if (zclient_debug) | |
0313523d | 2218 | zlog_debug("LM connect-response received, result %u", result); |
d62a17ae | 2219 | |
2220 | return (int)result; | |
fea12efb | 2221 | } |
2222 | ||
955bfd98 PZ |
2223 | /* |
2224 | * Asynchronous label chunk request | |
2225 | * | |
2226 | * @param zclient Zclient used to connect to label manager (zebra) | |
2227 | * @param keep Avoid garbage collection | |
2228 | * @param chunk_size Amount of labels requested | |
0e3b6a92 | 2229 | * @param base Base for the label chunk. if MPLS_LABEL_BASE_ANY we do not care |
955bfd98 PZ |
2230 | * @result 0 on success, -1 otherwise |
2231 | */ | |
0313523d | 2232 | int zclient_send_get_label_chunk(struct zclient *zclient, uint8_t keep, |
0e3b6a92 | 2233 | uint32_t chunk_size, uint32_t base) |
955bfd98 PZ |
2234 | { |
2235 | struct stream *s; | |
2236 | ||
2237 | if (zclient_debug) | |
2238 | zlog_debug("Getting Label Chunk"); | |
2239 | ||
2240 | if (zclient->sock < 0) | |
2241 | return -1; | |
2242 | ||
2243 | s = zclient->obuf; | |
2244 | stream_reset(s); | |
2245 | ||
2246 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
5dffb0e9 FR |
2247 | /* proto */ |
2248 | stream_putc(s, zclient->redist_default); | |
2249 | /* instance */ | |
2250 | stream_putw(s, zclient->instance); | |
955bfd98 PZ |
2251 | stream_putc(s, keep); |
2252 | stream_putl(s, chunk_size); | |
0e3b6a92 | 2253 | stream_putl(s, base); |
955bfd98 PZ |
2254 | |
2255 | /* Put length at the first point of the stream. */ | |
2256 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2257 | ||
2258 | return zclient_send_message(zclient); | |
2259 | } | |
2260 | ||
fea12efb | 2261 | /** |
2262 | * Function to request a label chunk in a syncronous way | |
2263 | * | |
2264 | * It first writes the request to zlcient output buffer and then | |
2265 | * immediately reads the answer from the input buffer. | |
2266 | * | |
2267 | * @param zclient Zclient used to connect to label manager (zebra) | |
2268 | * @param keep Avoid garbage collection | |
2269 | * @param chunk_size Amount of labels requested | |
2270 | * @param start To write first assigned chunk label to | |
2271 | * @param end To write last assigned chunk label to | |
2272 | * @result 0 on success, -1 otherwise | |
2273 | */ | |
0e3b6a92 | 2274 | int lm_get_label_chunk(struct zclient *zclient, uint8_t keep, uint32_t base, |
d62a17ae | 2275 | uint32_t chunk_size, uint32_t *start, uint32_t *end) |
fea12efb | 2276 | { |
d62a17ae | 2277 | int ret; |
2278 | struct stream *s; | |
d7c0a89a | 2279 | uint8_t response_keep; |
d62a17ae | 2280 | |
2281 | if (zclient_debug) | |
2282 | zlog_debug("Getting Label Chunk"); | |
2283 | ||
2284 | if (zclient->sock < 0) | |
2285 | return -1; | |
2286 | ||
2287 | /* send request */ | |
2288 | s = zclient->obuf; | |
2289 | stream_reset(s); | |
2290 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
5dffb0e9 FR |
2291 | /* proto */ |
2292 | stream_putc(s, zclient->redist_default); | |
2293 | /* instance */ | |
2294 | stream_putw(s, zclient->instance); | |
d62a17ae | 2295 | /* keep */ |
2296 | stream_putc(s, keep); | |
2297 | /* chunk size */ | |
2298 | stream_putl(s, chunk_size); | |
0e3b6a92 EDP |
2299 | /* requested chunk base */ |
2300 | stream_putl(s, base); | |
d62a17ae | 2301 | /* Put length at the first point of the stream. */ |
2302 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2303 | ||
2304 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2305 | if (ret < 0) { | |
1c50c1c0 | 2306 | flog_err(EC_LIB_ZAPI_SOCKET, "Can't write to zclient sock"); |
d62a17ae | 2307 | close(zclient->sock); |
2308 | zclient->sock = -1; | |
2309 | return -1; | |
2310 | } | |
2311 | if (ret == 0) { | |
1c50c1c0 | 2312 | flog_err(EC_LIB_ZAPI_SOCKET, "Zclient sock closed"); |
d62a17ae | 2313 | close(zclient->sock); |
2314 | zclient->sock = -1; | |
2315 | return -1; | |
2316 | } | |
2317 | if (zclient_debug) | |
35cbe02a | 2318 | zlog_debug("Label chunk request (%d bytes) sent", ret); |
d62a17ae | 2319 | |
2320 | /* read response */ | |
2321 | if (zclient_read_sync_response(zclient, ZEBRA_GET_LABEL_CHUNK) != 0) | |
2322 | return -1; | |
2323 | ||
5dffb0e9 | 2324 | /* parse response */ |
d62a17ae | 2325 | s = zclient->ibuf; |
5dffb0e9 FR |
2326 | |
2327 | /* read proto and instance */ | |
2328 | uint8_t proto = stream_getc(s); | |
2329 | uint16_t instance = stream_getw(s); | |
2330 | ||
2331 | /* sanities */ | |
2332 | if (proto != zclient->redist_default) | |
450971aa | 2333 | flog_err(EC_LIB_ZAPI_ENCODE, |
1c50c1c0 QY |
2334 | "Wrong proto (%u) in get chunk response. Should be %u", |
2335 | proto, zclient->redist_default); | |
5dffb0e9 | 2336 | if (instance != zclient->instance) |
450971aa | 2337 | flog_err(EC_LIB_ZAPI_ENCODE, |
1c50c1c0 QY |
2338 | "Wrong instId (%u) in get chunk response Should be %u", |
2339 | instance, zclient->instance); | |
5dffb0e9 | 2340 | |
f004f7c3 EDP |
2341 | /* if we requested a specific chunk and it could not be allocated, the |
2342 | * response message will end here | |
2343 | */ | |
2344 | if (!STREAM_READABLE(s)) { | |
2345 | zlog_info("Unable to assign Label Chunk to %s instance %u", | |
2346 | zebra_route_string(proto), instance); | |
2347 | return -1; | |
2348 | } | |
2349 | ||
d62a17ae | 2350 | /* keep */ |
2351 | response_keep = stream_getc(s); | |
2352 | /* start and end labels */ | |
2353 | *start = stream_getl(s); | |
2354 | *end = stream_getl(s); | |
2355 | ||
2356 | /* not owning this response */ | |
2357 | if (keep != response_keep) { | |
1c50c1c0 QY |
2358 | flog_err( |
2359 | EC_LIB_ZAPI_ENCODE, | |
2360 | "Invalid Label chunk: %u - %u, keeps mismatch %u != %u", | |
2361 | *start, *end, keep, response_keep); | |
d62a17ae | 2362 | } |
2363 | /* sanity */ | |
70e98a7f DS |
2364 | if (*start > *end || *start < MPLS_LABEL_UNRESERVED_MIN |
2365 | || *end > MPLS_LABEL_UNRESERVED_MAX) { | |
1c50c1c0 QY |
2366 | flog_err(EC_LIB_ZAPI_ENCODE, "Invalid Label chunk: %u - %u", |
2367 | *start, *end); | |
d62a17ae | 2368 | return -1; |
2369 | } | |
2370 | ||
2371 | if (zclient_debug) | |
35cbe02a | 2372 | zlog_debug("Label Chunk assign: %u - %u (%u)", *start, *end, |
d62a17ae | 2373 | response_keep); |
2374 | ||
2375 | return 0; | |
fea12efb | 2376 | } |
2377 | ||
2378 | /** | |
2379 | * Function to release a label chunk | |
2380 | * | |
2381 | * @param zclient Zclient used to connect to label manager (zebra) | |
2382 | * @param start First label of chunk | |
2383 | * @param end Last label of chunk | |
2384 | * @result 0 on success, -1 otherwise | |
2385 | */ | |
d62a17ae | 2386 | int lm_release_label_chunk(struct zclient *zclient, uint32_t start, |
2387 | uint32_t end) | |
fea12efb | 2388 | { |
d62a17ae | 2389 | int ret; |
2390 | struct stream *s; | |
2391 | ||
2392 | if (zclient_debug) | |
35cbe02a | 2393 | zlog_debug("Releasing Label Chunk %u - %u", start, end); |
d62a17ae | 2394 | |
2395 | if (zclient->sock < 0) | |
2396 | return -1; | |
2397 | ||
2398 | /* send request */ | |
2399 | s = zclient->obuf; | |
2400 | stream_reset(s); | |
2401 | zclient_create_header(s, ZEBRA_RELEASE_LABEL_CHUNK, VRF_DEFAULT); | |
2402 | ||
5dffb0e9 FR |
2403 | /* proto */ |
2404 | stream_putc(s, zclient->redist_default); | |
2405 | /* instance */ | |
2406 | stream_putw(s, zclient->instance); | |
d62a17ae | 2407 | /* start */ |
2408 | stream_putl(s, start); | |
2409 | /* end */ | |
2410 | stream_putl(s, end); | |
2411 | ||
2412 | /* Put length at the first point of the stream. */ | |
2413 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2414 | ||
2415 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2416 | if (ret < 0) { | |
450971aa | 2417 | flog_err(EC_LIB_ZAPI_SOCKET, "Can't write to zclient sock"); |
d62a17ae | 2418 | close(zclient->sock); |
2419 | zclient->sock = -1; | |
2420 | return -1; | |
2421 | } | |
2422 | if (ret == 0) { | |
1c50c1c0 | 2423 | flog_err(EC_LIB_ZAPI_SOCKET, "Zclient sock connection closed"); |
d62a17ae | 2424 | close(zclient->sock); |
2425 | zclient->sock = -1; | |
2426 | return -1; | |
2427 | } | |
2428 | ||
2429 | return 0; | |
fea12efb | 2430 | } |
c8e264b6 | 2431 | |
75fb51c1 PG |
2432 | /** |
2433 | * Connect to table manager in a syncronous way | |
2434 | * | |
2435 | * It first writes the request to zcient output buffer and then | |
2436 | * immediately reads the answer from the input buffer. | |
2437 | * | |
2438 | * @param zclient Zclient used to connect to table manager (zebra) | |
2439 | * @result Result of response | |
2440 | */ | |
2441 | int tm_table_manager_connect(struct zclient *zclient) | |
2442 | { | |
2443 | int ret; | |
2444 | struct stream *s; | |
2445 | uint8_t result; | |
2446 | ||
2447 | if (zclient_debug) | |
2448 | zlog_debug("Connecting to Table Manager"); | |
2449 | ||
2450 | if (zclient->sock < 0) | |
2451 | return -1; | |
2452 | ||
2453 | /* send request */ | |
2454 | s = zclient->obuf; | |
2455 | stream_reset(s); | |
2456 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, VRF_DEFAULT); | |
2457 | ||
2458 | /* proto */ | |
2459 | stream_putc(s, zclient->redist_default); | |
2460 | /* instance */ | |
2461 | stream_putw(s, zclient->instance); | |
2462 | ||
2463 | /* Put length at the first point of the stream. */ | |
2464 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2465 | ||
2466 | ret = zclient_send_message(zclient); | |
2467 | if (ret < 0) | |
2468 | return -1; | |
2469 | ||
2470 | if (zclient_debug) | |
0313523d | 2471 | zlog_debug("%s: Table manager connect request sent", __func__); |
75fb51c1 PG |
2472 | |
2473 | /* read response */ | |
2474 | if (zclient_read_sync_response(zclient, ZEBRA_TABLE_MANAGER_CONNECT) | |
2475 | != 0) | |
2476 | return -1; | |
2477 | ||
2478 | /* result */ | |
2479 | s = zclient->ibuf; | |
2480 | STREAM_GETC(s, result); | |
2481 | if (zclient_debug) | |
2482 | zlog_debug( | |
2483 | "%s: Table Manager connect response received, result %u", | |
2484 | __func__, result); | |
2485 | ||
2486 | return (int)result; | |
2487 | stream_failure: | |
6a2b0d9a | 2488 | return -1; |
75fb51c1 PG |
2489 | } |
2490 | ||
2491 | /** | |
2492 | * Function to request a table chunk in a syncronous way | |
2493 | * | |
2494 | * It first writes the request to zclient output buffer and then | |
2495 | * immediately reads the answer from the input buffer. | |
2496 | * | |
2497 | * @param zclient Zclient used to connect to table manager (zebra) | |
2498 | * @param chunk_size Amount of table requested | |
2499 | * @param start to write first assigned chunk table RT ID to | |
2500 | * @param end To write last assigned chunk table RT ID to | |
2501 | * @result 0 on success, -1 otherwise | |
2502 | */ | |
2503 | int tm_get_table_chunk(struct zclient *zclient, uint32_t chunk_size, | |
2504 | uint32_t *start, uint32_t *end) | |
2505 | { | |
2506 | int ret; | |
2507 | struct stream *s; | |
2508 | ||
2509 | if (zclient_debug) | |
2510 | zlog_debug("Getting Table Chunk"); | |
2511 | ||
2512 | if (zclient->sock < 0) | |
2513 | return -1; | |
2514 | ||
2515 | /* send request */ | |
2516 | s = zclient->obuf; | |
2517 | stream_reset(s); | |
2518 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, VRF_DEFAULT); | |
2519 | /* chunk size */ | |
2520 | stream_putl(s, chunk_size); | |
2521 | /* Put length at the first point of the stream. */ | |
2522 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2523 | ||
2524 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2525 | if (ret < 0) { | |
1c50c1c0 QY |
2526 | flog_err(EC_LIB_ZAPI_SOCKET, "%s: can't write to zclient->sock", |
2527 | __func__); | |
75fb51c1 PG |
2528 | close(zclient->sock); |
2529 | zclient->sock = -1; | |
2530 | return -1; | |
2531 | } | |
2532 | if (ret == 0) { | |
450971aa | 2533 | flog_err(EC_LIB_ZAPI_SOCKET, |
1c50c1c0 | 2534 | "%s: zclient->sock connection closed", __func__); |
75fb51c1 PG |
2535 | close(zclient->sock); |
2536 | zclient->sock = -1; | |
2537 | return -1; | |
2538 | } | |
2539 | if (zclient_debug) | |
2540 | zlog_debug("%s: Table chunk request (%d bytes) sent", __func__, | |
2541 | ret); | |
2542 | ||
2543 | /* read response */ | |
2544 | if (zclient_read_sync_response(zclient, ZEBRA_GET_TABLE_CHUNK) != 0) | |
2545 | return -1; | |
2546 | ||
2547 | s = zclient->ibuf; | |
2548 | /* start and end table IDs */ | |
2549 | STREAM_GETL(s, *start); | |
2550 | STREAM_GETL(s, *end); | |
2551 | ||
2552 | if (zclient_debug) | |
2553 | zlog_debug("Table Chunk assign: %u - %u ", *start, *end); | |
2554 | ||
75fb51c1 | 2555 | return 0; |
6a2b0d9a RW |
2556 | stream_failure: |
2557 | return -1; | |
75fb51c1 PG |
2558 | } |
2559 | ||
2560 | /** | |
2561 | * Function to release a table chunk | |
2562 | * | |
2563 | * @param zclient Zclient used to connect to table manager (zebra) | |
2564 | * @param start First label of table | |
2565 | * @param end Last label of chunk | |
2566 | * @result 0 on success, -1 otherwise | |
2567 | */ | |
2568 | int tm_release_table_chunk(struct zclient *zclient, uint32_t start, | |
2569 | uint32_t end) | |
2570 | { | |
2571 | struct stream *s; | |
2572 | ||
2573 | if (zclient_debug) | |
2574 | zlog_debug("Releasing Table Chunk"); | |
2575 | ||
2576 | if (zclient->sock < 0) | |
2577 | return -1; | |
2578 | ||
2579 | /* send request */ | |
2580 | s = zclient->obuf; | |
2581 | stream_reset(s); | |
2582 | zclient_create_header(s, ZEBRA_RELEASE_TABLE_CHUNK, VRF_DEFAULT); | |
2583 | ||
2584 | /* start */ | |
2585 | stream_putl(s, start); | |
2586 | /* end */ | |
2587 | stream_putl(s, end); | |
2588 | ||
2589 | /* Put length at the first point of the stream. */ | |
2590 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2591 | ||
2592 | return zclient_send_message(zclient); | |
2593 | } | |
2594 | ||
bad6b0e7 RW |
2595 | int zebra_send_mpls_labels(struct zclient *zclient, int cmd, |
2596 | struct zapi_labels *zl) | |
2597 | { | |
2598 | if (zapi_labels_encode(zclient->obuf, cmd, zl) < 0) | |
2599 | return -1; | |
2600 | return zclient_send_message(zclient); | |
2601 | } | |
2602 | ||
2603 | int zapi_labels_encode(struct stream *s, int cmd, struct zapi_labels *zl) | |
2604 | { | |
ea6b290b RW |
2605 | struct zapi_nexthop_label *znh; |
2606 | ||
bad6b0e7 RW |
2607 | stream_reset(s); |
2608 | ||
2609 | zclient_create_header(s, cmd, VRF_DEFAULT); | |
b3c49d0e | 2610 | stream_putc(s, zl->message); |
bad6b0e7 | 2611 | stream_putc(s, zl->type); |
b3c49d0e RW |
2612 | stream_putl(s, zl->local_label); |
2613 | ||
2614 | if (CHECK_FLAG(zl->message, ZAPI_LABELS_FTN)) { | |
2615 | stream_putw(s, zl->route.prefix.family); | |
2616 | stream_put_prefix(s, &zl->route.prefix); | |
2617 | stream_putc(s, zl->route.type); | |
2618 | stream_putw(s, zl->route.instance); | |
2619 | } | |
2620 | ||
ea6b290b RW |
2621 | if (zl->nexthop_num > MULTIPATH_NUM) { |
2622 | flog_err( | |
2623 | EC_LIB_ZAPI_ENCODE, | |
2624 | "%s: label %u: can't encode %u nexthops (maximum is %u)", | |
2625 | __func__, zl->local_label, zl->nexthop_num, | |
2626 | MULTIPATH_NUM); | |
2627 | return -1; | |
2628 | } | |
2629 | stream_putw(s, zl->nexthop_num); | |
2630 | ||
2631 | for (int i = 0; i < zl->nexthop_num; i++) { | |
2632 | znh = &zl->nexthops[i]; | |
2633 | ||
2634 | stream_putc(s, znh->type); | |
2635 | stream_putw(s, znh->family); | |
2636 | switch (znh->family) { | |
2637 | case AF_INET: | |
2638 | stream_put_in_addr(s, &znh->address.ipv4); | |
2639 | break; | |
2640 | case AF_INET6: | |
2641 | stream_write(s, (uint8_t *)&znh->address.ipv6, 16); | |
2642 | break; | |
2643 | default: | |
2644 | break; | |
2645 | } | |
2646 | stream_putl(s, znh->ifindex); | |
2647 | stream_putl(s, znh->label); | |
bad6b0e7 | 2648 | } |
bad6b0e7 RW |
2649 | |
2650 | /* Put length at the first point of the stream. */ | |
2651 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2652 | ||
2653 | return 0; | |
2654 | } | |
2655 | ||
2656 | int zapi_labels_decode(struct stream *s, struct zapi_labels *zl) | |
2657 | { | |
ea6b290b RW |
2658 | struct zapi_nexthop_label *znh; |
2659 | ||
bad6b0e7 RW |
2660 | memset(zl, 0, sizeof(*zl)); |
2661 | ||
2662 | /* Get data. */ | |
b3c49d0e | 2663 | STREAM_GETC(s, zl->message); |
bad6b0e7 | 2664 | STREAM_GETC(s, zl->type); |
b3c49d0e | 2665 | STREAM_GETL(s, zl->local_label); |
bad6b0e7 | 2666 | |
b3c49d0e RW |
2667 | if (CHECK_FLAG(zl->message, ZAPI_LABELS_FTN)) { |
2668 | size_t psize; | |
2669 | ||
2670 | STREAM_GETW(s, zl->route.prefix.family); | |
2671 | STREAM_GETC(s, zl->route.prefix.prefixlen); | |
2672 | ||
2673 | psize = PSIZE(zl->route.prefix.prefixlen); | |
2674 | switch (zl->route.prefix.family) { | |
2675 | case AF_INET: | |
2676 | if (zl->route.prefix.prefixlen > IPV4_MAX_BITLEN) { | |
2677 | zlog_debug( | |
2678 | "%s: Specified prefix length %d is greater than a v4 address can support", | |
2679 | __PRETTY_FUNCTION__, | |
2680 | zl->route.prefix.prefixlen); | |
2681 | return -1; | |
2682 | } | |
2683 | STREAM_GET(&zl->route.prefix.u.prefix4.s_addr, s, | |
2684 | psize); | |
2685 | break; | |
2686 | case AF_INET6: | |
2687 | if (zl->route.prefix.prefixlen > IPV6_MAX_BITLEN) { | |
2688 | zlog_debug( | |
2689 | "%s: Specified prefix length %d is greater than a v6 address can support", | |
2690 | __PRETTY_FUNCTION__, | |
2691 | zl->route.prefix.prefixlen); | |
2692 | return -1; | |
2693 | } | |
2694 | STREAM_GET(&zl->route.prefix.u.prefix6, s, psize); | |
2695 | break; | |
2696 | default: | |
2697 | flog_err(EC_LIB_ZAPI_ENCODE, | |
2698 | "%s: Specified family %u is not v4 or v6", | |
2699 | __PRETTY_FUNCTION__, zl->route.prefix.family); | |
bad6b0e7 RW |
2700 | return -1; |
2701 | } | |
b3c49d0e RW |
2702 | |
2703 | STREAM_GETC(s, zl->route.type); | |
2704 | STREAM_GETW(s, zl->route.instance); | |
2705 | } | |
2706 | ||
ea6b290b | 2707 | STREAM_GETW(s, zl->nexthop_num); |
b900b3c6 QY |
2708 | |
2709 | if (zl->nexthop_num > MULTIPATH_NUM) { | |
2710 | flog_warn( | |
2711 | EC_LIB_ZAPI_ENCODE, | |
2712 | "%s: Prefix %pFX has %d nexthops, but we can only use the first %d", | |
2713 | __func__, &zl->route.prefix, zl->nexthop_num, | |
2714 | MULTIPATH_NUM); | |
2715 | } | |
2716 | ||
2717 | zl->nexthop_num = MIN(MULTIPATH_NUM, zl->nexthop_num); | |
2718 | ||
ea6b290b RW |
2719 | for (int i = 0; i < zl->nexthop_num; i++) { |
2720 | znh = &zl->nexthops[i]; | |
2721 | ||
2722 | STREAM_GETC(s, znh->type); | |
2723 | STREAM_GETW(s, znh->family); | |
2724 | switch (znh->family) { | |
2725 | case AF_INET: | |
2726 | STREAM_GET(&znh->address.ipv4.s_addr, s, | |
2727 | IPV4_MAX_BYTELEN); | |
2728 | break; | |
2729 | case AF_INET6: | |
2730 | STREAM_GET(&znh->address.ipv6, s, 16); | |
2731 | break; | |
2732 | default: | |
2733 | break; | |
2734 | } | |
2735 | STREAM_GETL(s, znh->ifindex); | |
2736 | STREAM_GETL(s, znh->label); | |
bad6b0e7 | 2737 | } |
bad6b0e7 RW |
2738 | |
2739 | return 0; | |
2740 | stream_failure: | |
2741 | return -1; | |
2742 | } | |
75fb51c1 | 2743 | |
6833ae01 | 2744 | int zebra_send_pw(struct zclient *zclient, int command, struct zapi_pw *pw) |
2745 | { | |
2746 | struct stream *s; | |
2747 | ||
2748 | /* Reset stream. */ | |
2749 | s = zclient->obuf; | |
2750 | stream_reset(s); | |
2751 | ||
2752 | zclient_create_header(s, command, VRF_DEFAULT); | |
2753 | stream_write(s, pw->ifname, IF_NAMESIZE); | |
2754 | stream_putl(s, pw->ifindex); | |
2755 | ||
2756 | /* Put type */ | |
2757 | stream_putl(s, pw->type); | |
2758 | ||
2759 | /* Put nexthop */ | |
2760 | stream_putl(s, pw->af); | |
2761 | switch (pw->af) { | |
2762 | case AF_INET: | |
2763 | stream_put_in_addr(s, &pw->nexthop.ipv4); | |
2764 | break; | |
2765 | case AF_INET6: | |
d7c0a89a | 2766 | stream_write(s, (uint8_t *)&pw->nexthop.ipv6, 16); |
6833ae01 | 2767 | break; |
2768 | default: | |
1c50c1c0 | 2769 | flog_err(EC_LIB_ZAPI_ENCODE, "%s: unknown af", __func__); |
6833ae01 | 2770 | return -1; |
2771 | } | |
2772 | ||
2773 | /* Put labels */ | |
2774 | stream_putl(s, pw->local_label); | |
2775 | stream_putl(s, pw->remote_label); | |
2776 | ||
2777 | /* Put flags */ | |
2778 | stream_putc(s, pw->flags); | |
2779 | ||
2780 | /* Protocol specific fields */ | |
2781 | stream_write(s, &pw->data, sizeof(union pw_protocol_fields)); | |
2782 | ||
2783 | /* Put length at the first point of the stream. */ | |
2784 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2785 | ||
2786 | return zclient_send_message(zclient); | |
2787 | } | |
2788 | ||
2789 | /* | |
2790 | * Receive PW status update from Zebra and send it to LDE process. | |
2791 | */ | |
121f9dee | 2792 | void zebra_read_pw_status_update(ZAPI_CALLBACK_ARGS, struct zapi_pw_status *pw) |
6833ae01 | 2793 | { |
2794 | struct stream *s; | |
2795 | ||
2796 | memset(pw, 0, sizeof(struct zapi_pw_status)); | |
2797 | s = zclient->ibuf; | |
2798 | ||
2799 | /* Get data. */ | |
2800 | stream_get(pw->ifname, s, IF_NAMESIZE); | |
2801 | pw->ifindex = stream_getl(s); | |
2802 | pw->status = stream_getl(s); | |
2803 | } | |
2804 | ||
121f9dee | 2805 | static void zclient_capability_decode(ZAPI_CALLBACK_ARGS) |
09924cff DS |
2806 | { |
2807 | struct zclient_capabilities cap; | |
2808 | struct stream *s = zclient->ibuf; | |
bb6b7f79 | 2809 | int vrf_backend; |
09924cff DS |
2810 | uint8_t mpls_enabled; |
2811 | ||
bb6b7f79 RW |
2812 | STREAM_GETL(s, vrf_backend); |
2813 | vrf_configure_backend(vrf_backend); | |
2814 | ||
09924cff DS |
2815 | memset(&cap, 0, sizeof(cap)); |
2816 | STREAM_GETC(s, mpls_enabled); | |
2817 | cap.mpls_enabled = !!mpls_enabled; | |
2818 | STREAM_GETL(s, cap.ecmp); | |
02c0866d | 2819 | STREAM_GETC(s, cap.role); |
09924cff DS |
2820 | |
2821 | if (zclient->zebra_capabilities) | |
2822 | (*zclient->zebra_capabilities)(&cap); | |
2823 | ||
2824 | stream_failure: | |
2825 | return; | |
2826 | } | |
2827 | ||
36b5b98f SK |
2828 | void zclient_send_mlag_register(struct zclient *client, uint32_t bit_map) |
2829 | { | |
2830 | struct stream *s; | |
2831 | ||
2832 | s = client->obuf; | |
2833 | stream_reset(s); | |
2834 | ||
2835 | zclient_create_header(s, ZEBRA_MLAG_CLIENT_REGISTER, VRF_DEFAULT); | |
2836 | stream_putl(s, bit_map); | |
2837 | ||
2838 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2839 | zclient_send_message(client); | |
2840 | } | |
2841 | ||
2842 | void zclient_send_mlag_deregister(struct zclient *client) | |
2843 | { | |
2844 | zebra_message_send(client, ZEBRA_MLAG_CLIENT_UNREGISTER, VRF_DEFAULT); | |
2845 | } | |
2846 | ||
2847 | void zclient_send_mlag_data(struct zclient *client, struct stream *client_s) | |
2848 | { | |
2849 | struct stream *s; | |
2850 | ||
2851 | s = client->obuf; | |
2852 | stream_reset(s); | |
2853 | ||
2854 | zclient_create_header(s, ZEBRA_MLAG_FORWARD_MSG, VRF_DEFAULT); | |
2855 | stream_put(s, client_s->data, client_s->endp); | |
2856 | ||
2857 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2858 | zclient_send_message(client); | |
2859 | } | |
2860 | ||
46c2687c SK |
2861 | static void zclient_mlag_process_up(ZAPI_CALLBACK_ARGS) |
2862 | { | |
2863 | if (zclient->mlag_process_up) | |
2864 | (*zclient->mlag_process_up)(); | |
2865 | } | |
2866 | ||
2867 | static void zclient_mlag_process_down(ZAPI_CALLBACK_ARGS) | |
2868 | { | |
2869 | if (zclient->mlag_process_down) | |
2870 | (*zclient->mlag_process_down)(); | |
2871 | } | |
2872 | ||
2873 | static void zclient_mlag_handle_msg(ZAPI_CALLBACK_ARGS) | |
2874 | { | |
2875 | if (zclient->mlag_handle_msg) | |
2876 | (*zclient->mlag_handle_msg)(zclient->ibuf, length); | |
2877 | } | |
2878 | ||
718e3744 | 2879 | /* Zebra client message read function. */ |
d62a17ae | 2880 | static int zclient_read(struct thread *thread) |
718e3744 | 2881 | { |
d62a17ae | 2882 | size_t already; |
2883 | uint16_t length, command; | |
2884 | uint8_t marker, version; | |
2885 | vrf_id_t vrf_id; | |
2886 | struct zclient *zclient; | |
2887 | ||
2888 | /* Get socket to zebra. */ | |
2889 | zclient = THREAD_ARG(thread); | |
2890 | zclient->t_read = NULL; | |
2891 | ||
2892 | /* Read zebra header (if we don't have it already). */ | |
2893 | if ((already = stream_get_endp(zclient->ibuf)) < ZEBRA_HEADER_SIZE) { | |
2894 | ssize_t nbyte; | |
2895 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2896 | ZEBRA_HEADER_SIZE - already)) | |
2897 | == 0) | |
2898 | || (nbyte == -1)) { | |
2899 | if (zclient_debug) | |
2900 | zlog_debug( | |
2901 | "zclient connection closed socket [%d].", | |
2902 | zclient->sock); | |
2903 | return zclient_failed(zclient); | |
2904 | } | |
2905 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
2906 | /* Try again later. */ | |
2907 | zclient_event(ZCLIENT_READ, zclient); | |
2908 | return 0; | |
2909 | } | |
2910 | already = ZEBRA_HEADER_SIZE; | |
634f9ea2 | 2911 | } |
d62a17ae | 2912 | |
2913 | /* Reset to read from the beginning of the incoming packet. */ | |
2914 | stream_set_getp(zclient->ibuf, 0); | |
2915 | ||
2916 | /* Fetch header values. */ | |
2917 | length = stream_getw(zclient->ibuf); | |
2918 | marker = stream_getc(zclient->ibuf); | |
2919 | version = stream_getc(zclient->ibuf); | |
a9ff90c4 | 2920 | vrf_id = stream_getl(zclient->ibuf); |
d62a17ae | 2921 | command = stream_getw(zclient->ibuf); |
2922 | ||
2923 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
1c50c1c0 QY |
2924 | flog_err( |
2925 | EC_LIB_ZAPI_MISSMATCH, | |
2926 | "%s: socket %d version mismatch, marker %d, version %d", | |
2927 | __func__, zclient->sock, marker, version); | |
d62a17ae | 2928 | return zclient_failed(zclient); |
634f9ea2 | 2929 | } |
d62a17ae | 2930 | |
2931 | if (length < ZEBRA_HEADER_SIZE) { | |
450971aa | 2932 | flog_err(EC_LIB_ZAPI_MISSMATCH, |
1c50c1c0 QY |
2933 | "%s: socket %d message length %u is less than %d ", |
2934 | __func__, zclient->sock, length, ZEBRA_HEADER_SIZE); | |
d62a17ae | 2935 | return zclient_failed(zclient); |
634f9ea2 | 2936 | } |
d62a17ae | 2937 | |
2938 | /* Length check. */ | |
2939 | if (length > STREAM_SIZE(zclient->ibuf)) { | |
2940 | struct stream *ns; | |
ade6974d | 2941 | flog_err( |
450971aa | 2942 | EC_LIB_ZAPI_ENCODE, |
ade6974d QY |
2943 | "%s: message size %u exceeds buffer size %lu, expanding...", |
2944 | __func__, length, | |
2945 | (unsigned long)STREAM_SIZE(zclient->ibuf)); | |
d62a17ae | 2946 | ns = stream_new(length); |
2947 | stream_copy(ns, zclient->ibuf); | |
2948 | stream_free(zclient->ibuf); | |
2949 | zclient->ibuf = ns; | |
2950 | } | |
2951 | ||
2952 | /* Read rest of zebra packet. */ | |
2953 | if (already < length) { | |
2954 | ssize_t nbyte; | |
2955 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
2956 | length - already)) | |
2957 | == 0) | |
2958 | || (nbyte == -1)) { | |
2959 | if (zclient_debug) | |
2960 | zlog_debug( | |
2961 | "zclient connection closed socket [%d].", | |
2962 | zclient->sock); | |
2963 | return zclient_failed(zclient); | |
2964 | } | |
2965 | if (nbyte != (ssize_t)(length - already)) { | |
2966 | /* Try again later. */ | |
2967 | zclient_event(ZCLIENT_READ, zclient); | |
2968 | return 0; | |
2969 | } | |
2970 | } | |
2971 | ||
2972 | length -= ZEBRA_HEADER_SIZE; | |
2973 | ||
2974 | if (zclient_debug) | |
cdc6ed90 DS |
2975 | zlog_debug("zclient 0x%p command %s VRF %u", |
2976 | (void *)zclient, zserv_command_string(command), | |
2977 | vrf_id); | |
d62a17ae | 2978 | |
2979 | switch (command) { | |
09924cff DS |
2980 | case ZEBRA_CAPABILITIES: |
2981 | zclient_capability_decode(command, zclient, length, vrf_id); | |
2982 | break; | |
d62a17ae | 2983 | case ZEBRA_ROUTER_ID_UPDATE: |
2984 | if (zclient->router_id_update) | |
2985 | (*zclient->router_id_update)(command, zclient, length, | |
2986 | vrf_id); | |
2987 | break; | |
2988 | case ZEBRA_VRF_ADD: | |
2989 | zclient_vrf_add(zclient, vrf_id); | |
2990 | break; | |
2991 | case ZEBRA_VRF_DELETE: | |
2992 | zclient_vrf_delete(zclient, vrf_id); | |
2993 | break; | |
2994 | case ZEBRA_INTERFACE_ADD: | |
ef7bd2a3 | 2995 | zclient_interface_add(zclient, vrf_id); |
d62a17ae | 2996 | break; |
2997 | case ZEBRA_INTERFACE_DELETE: | |
3c3c3252 | 2998 | zclient_interface_delete(zclient, vrf_id); |
d62a17ae | 2999 | break; |
3000 | case ZEBRA_INTERFACE_ADDRESS_ADD: | |
3001 | if (zclient->interface_address_add) | |
3002 | (*zclient->interface_address_add)(command, zclient, | |
3003 | length, vrf_id); | |
3004 | break; | |
3005 | case ZEBRA_INTERFACE_ADDRESS_DELETE: | |
3006 | if (zclient->interface_address_delete) | |
3007 | (*zclient->interface_address_delete)(command, zclient, | |
3008 | length, vrf_id); | |
3009 | break; | |
3010 | case ZEBRA_INTERFACE_BFD_DEST_UPDATE: | |
3011 | if (zclient->interface_bfd_dest_update) | |
3012 | (*zclient->interface_bfd_dest_update)(command, zclient, | |
3013 | length, vrf_id); | |
3014 | break; | |
3015 | case ZEBRA_INTERFACE_NBR_ADDRESS_ADD: | |
3016 | if (zclient->interface_nbr_address_add) | |
3017 | (*zclient->interface_nbr_address_add)(command, zclient, | |
3018 | length, vrf_id); | |
3019 | break; | |
3020 | case ZEBRA_INTERFACE_NBR_ADDRESS_DELETE: | |
3021 | if (zclient->interface_nbr_address_delete) | |
3022 | (*zclient->interface_nbr_address_delete)( | |
3023 | command, zclient, length, vrf_id); | |
3024 | break; | |
3025 | case ZEBRA_INTERFACE_UP: | |
ddbf3e60 | 3026 | zclient_interface_up(zclient, vrf_id); |
d62a17ae | 3027 | break; |
3028 | case ZEBRA_INTERFACE_DOWN: | |
b0b69e59 | 3029 | zclient_interface_down(zclient, vrf_id); |
d62a17ae | 3030 | break; |
3031 | case ZEBRA_INTERFACE_VRF_UPDATE: | |
3032 | if (zclient->interface_vrf_update) | |
3033 | (*zclient->interface_vrf_update)(command, zclient, | |
3034 | length, vrf_id); | |
3035 | break; | |
3036 | case ZEBRA_NEXTHOP_UPDATE: | |
3037 | if (zclient_debug) | |
9165c5f5 | 3038 | zlog_debug("zclient rcvd nexthop update"); |
d62a17ae | 3039 | if (zclient->nexthop_update) |
3040 | (*zclient->nexthop_update)(command, zclient, length, | |
3041 | vrf_id); | |
3042 | break; | |
3043 | case ZEBRA_IMPORT_CHECK_UPDATE: | |
3044 | if (zclient_debug) | |
9165c5f5 | 3045 | zlog_debug("zclient rcvd import check update"); |
d62a17ae | 3046 | if (zclient->import_check_update) |
3047 | (*zclient->import_check_update)(command, zclient, | |
3048 | length, vrf_id); | |
3049 | break; | |
3050 | case ZEBRA_BFD_DEST_REPLAY: | |
3051 | if (zclient->bfd_dest_replay) | |
3052 | (*zclient->bfd_dest_replay)(command, zclient, length, | |
3053 | vrf_id); | |
3054 | break; | |
74489921 RW |
3055 | case ZEBRA_REDISTRIBUTE_ROUTE_ADD: |
3056 | if (zclient->redistribute_route_add) | |
3057 | (*zclient->redistribute_route_add)(command, zclient, | |
3058 | length, vrf_id); | |
d62a17ae | 3059 | break; |
74489921 RW |
3060 | case ZEBRA_REDISTRIBUTE_ROUTE_DEL: |
3061 | if (zclient->redistribute_route_del) | |
3062 | (*zclient->redistribute_route_del)(command, zclient, | |
3063 | length, vrf_id); | |
d62a17ae | 3064 | break; |
3065 | case ZEBRA_INTERFACE_LINK_PARAMS: | |
3066 | if (zclient->interface_link_params) | |
3067 | (*zclient->interface_link_params)(command, zclient, | |
edc12762 | 3068 | length, vrf_id); |
d62a17ae | 3069 | break; |
3070 | case ZEBRA_FEC_UPDATE: | |
3071 | if (zclient_debug) | |
9165c5f5 | 3072 | zlog_debug("zclient rcvd fec update"); |
d62a17ae | 3073 | if (zclient->fec_update) |
3074 | (*zclient->fec_update)(command, zclient, length); | |
3075 | break; | |
50f74cf1 | 3076 | case ZEBRA_LOCAL_ES_ADD: |
3077 | if (zclient->local_es_add) | |
3078 | (*zclient->local_es_add)(command, zclient, length, | |
3079 | vrf_id); | |
3080 | break; | |
3081 | case ZEBRA_LOCAL_ES_DEL: | |
3082 | if (zclient->local_es_del) | |
3083 | (*zclient->local_es_del)(command, zclient, length, | |
3084 | vrf_id); | |
3085 | break; | |
d62a17ae | 3086 | case ZEBRA_VNI_ADD: |
3087 | if (zclient->local_vni_add) | |
3088 | (*zclient->local_vni_add)(command, zclient, length, | |
3089 | vrf_id); | |
3090 | break; | |
3091 | case ZEBRA_VNI_DEL: | |
3092 | if (zclient->local_vni_del) | |
3093 | (*zclient->local_vni_del)(command, zclient, length, | |
3094 | vrf_id); | |
3095 | break; | |
b7cfce93 MK |
3096 | case ZEBRA_L3VNI_ADD: |
3097 | if (zclient->local_l3vni_add) | |
3098 | (*zclient->local_l3vni_add)(command, zclient, length, | |
3099 | vrf_id); | |
3100 | break; | |
3101 | case ZEBRA_L3VNI_DEL: | |
3102 | if (zclient->local_l3vni_del) | |
3103 | (*zclient->local_l3vni_del)(command, zclient, length, | |
3104 | vrf_id); | |
3105 | break; | |
d62a17ae | 3106 | case ZEBRA_MACIP_ADD: |
3107 | if (zclient->local_macip_add) | |
3108 | (*zclient->local_macip_add)(command, zclient, length, | |
3109 | vrf_id); | |
3110 | break; | |
3111 | case ZEBRA_MACIP_DEL: | |
3112 | if (zclient->local_macip_del) | |
3113 | (*zclient->local_macip_del)(command, zclient, length, | |
3114 | vrf_id); | |
3115 | break; | |
31310b25 MK |
3116 | case ZEBRA_IP_PREFIX_ROUTE_ADD: |
3117 | if (zclient->local_ip_prefix_add) | |
3118 | (*zclient->local_ip_prefix_add)(command, zclient, | |
3119 | length, vrf_id); | |
3120 | break; | |
3121 | case ZEBRA_IP_PREFIX_ROUTE_DEL: | |
3122 | if (zclient->local_ip_prefix_del) | |
3123 | (*zclient->local_ip_prefix_del)(command, zclient, | |
3124 | length, vrf_id); | |
3125 | break; | |
6833ae01 | 3126 | case ZEBRA_PW_STATUS_UPDATE: |
3127 | if (zclient->pw_status_update) | |
3128 | (*zclient->pw_status_update)(command, zclient, length, | |
3129 | vrf_id); | |
3130 | break; | |
7ea7b86e | 3131 | case ZEBRA_ROUTE_NOTIFY_OWNER: |
28b11f81 DS |
3132 | if (zclient->route_notify_owner) |
3133 | (*zclient->route_notify_owner)(command, zclient, length, | |
3134 | vrf_id); | |
7ea7b86e | 3135 | break; |
b6c5d343 DS |
3136 | case ZEBRA_RULE_NOTIFY_OWNER: |
3137 | if (zclient->rule_notify_owner) | |
3138 | (*zclient->rule_notify_owner)(command, zclient, length, | |
3139 | vrf_id); | |
955bfd98 PZ |
3140 | break; |
3141 | case ZEBRA_GET_LABEL_CHUNK: | |
3142 | if (zclient->label_chunk) | |
3143 | (*zclient->label_chunk)(command, zclient, length, | |
0313523d | 3144 | vrf_id); |
955bfd98 | 3145 | break; |
c16a0a62 PG |
3146 | case ZEBRA_IPSET_NOTIFY_OWNER: |
3147 | if (zclient->ipset_notify_owner) | |
3148 | (*zclient->ipset_notify_owner)(command, zclient, length, | |
3149 | vrf_id); | |
3150 | break; | |
3151 | case ZEBRA_IPSET_ENTRY_NOTIFY_OWNER: | |
3152 | if (zclient->ipset_entry_notify_owner) | |
3153 | (*zclient->ipset_entry_notify_owner)(command, | |
3154 | zclient, length, | |
3155 | vrf_id); | |
3156 | break; | |
3157 | case ZEBRA_IPTABLE_NOTIFY_OWNER: | |
3158 | if (zclient->iptable_notify_owner) | |
3159 | (*zclient->iptable_notify_owner)(command, | |
3160 | zclient, length, | |
3161 | vrf_id); | |
4ab3321f AK |
3162 | break; |
3163 | case ZEBRA_VXLAN_SG_ADD: | |
3164 | if (zclient->vxlan_sg_add) | |
3165 | (*zclient->vxlan_sg_add)(command, zclient, length, | |
3166 | vrf_id); | |
3167 | break; | |
3168 | case ZEBRA_VXLAN_SG_DEL: | |
3169 | if (zclient->vxlan_sg_del) | |
3170 | (*zclient->vxlan_sg_del)(command, zclient, length, | |
3171 | vrf_id); | |
3172 | break; | |
46c2687c SK |
3173 | case ZEBRA_MLAG_PROCESS_UP: |
3174 | zclient_mlag_process_up(command, zclient, length, vrf_id); | |
3175 | break; | |
3176 | case ZEBRA_MLAG_PROCESS_DOWN: | |
3177 | zclient_mlag_process_down(command, zclient, length, vrf_id); | |
3178 | break; | |
3179 | case ZEBRA_MLAG_FORWARD_MSG: | |
3180 | zclient_mlag_handle_msg(command, zclient, length, vrf_id); | |
3181 | break; | |
9ab0b2a3 SW |
3182 | case ZEBRA_ERROR: |
3183 | zclient_handle_error(command, zclient, length, vrf_id); | |
d62a17ae | 3184 | default: |
3185 | break; | |
634f9ea2 | 3186 | } |
d62a17ae | 3187 | |
3188 | if (zclient->sock < 0) | |
3189 | /* Connection was closed during packet processing. */ | |
3190 | return -1; | |
3191 | ||
3192 | /* Register read thread. */ | |
3193 | stream_reset(zclient->ibuf); | |
3194 | zclient_event(ZCLIENT_READ, zclient); | |
3195 | ||
3196 | return 0; | |
718e3744 | 3197 | } |
3198 | ||
d62a17ae | 3199 | void zclient_redistribute(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 3200 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 3201 | { |
718e3744 | 3202 | |
d62a17ae | 3203 | if (instance) { |
3204 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
3205 | if (redist_check_instance( | |
3206 | &zclient->mi_redist[afi][type], instance)) | |
3207 | return; | |
3208 | redist_add_instance(&zclient->mi_redist[afi][type], | |
3209 | instance); | |
3210 | } else { | |
3211 | if (!redist_check_instance( | |
3212 | &zclient->mi_redist[afi][type], instance)) | |
3213 | return; | |
3214 | redist_del_instance(&zclient->mi_redist[afi][type], | |
3215 | instance); | |
3216 | } | |
3217 | ||
3218 | } else { | |
3219 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
3220 | if (vrf_bitmap_check(zclient->redist[afi][type], | |
3221 | vrf_id)) | |
3222 | return; | |
3223 | vrf_bitmap_set(zclient->redist[afi][type], vrf_id); | |
3224 | } else { | |
3225 | if (!vrf_bitmap_check(zclient->redist[afi][type], | |
3226 | vrf_id)) | |
3227 | return; | |
3228 | vrf_bitmap_unset(zclient->redist[afi][type], vrf_id); | |
3229 | } | |
3230 | } | |
3231 | ||
3232 | if (zclient->sock > 0) | |
3233 | zebra_redistribute_send(command, zclient, afi, type, instance, | |
3234 | vrf_id); | |
718e3744 | 3235 | } |
3236 | ||
718e3744 | 3237 | |
d62a17ae | 3238 | void zclient_redistribute_default(int command, struct zclient *zclient, |
49db7a7b | 3239 | afi_t afi, vrf_id_t vrf_id) |
718e3744 | 3240 | { |
718e3744 | 3241 | |
d62a17ae | 3242 | if (command == ZEBRA_REDISTRIBUTE_DEFAULT_ADD) { |
49db7a7b | 3243 | if (vrf_bitmap_check(zclient->default_information[afi], vrf_id)) |
d62a17ae | 3244 | return; |
49db7a7b | 3245 | vrf_bitmap_set(zclient->default_information[afi], vrf_id); |
d62a17ae | 3246 | } else { |
49db7a7b RW |
3247 | if (!vrf_bitmap_check(zclient->default_information[afi], |
3248 | vrf_id)) | |
d62a17ae | 3249 | return; |
49db7a7b | 3250 | vrf_bitmap_unset(zclient->default_information[afi], vrf_id); |
d62a17ae | 3251 | } |
3252 | ||
3253 | if (zclient->sock > 0) | |
49db7a7b | 3254 | zebra_redistribute_default_send(command, zclient, afi, vrf_id); |
718e3744 | 3255 | } |
3256 | ||
d62a17ae | 3257 | static void zclient_event(enum event event, struct zclient *zclient) |
718e3744 | 3258 | { |
d62a17ae | 3259 | switch (event) { |
3260 | case ZCLIENT_SCHEDULE: | |
3261 | thread_add_event(zclient->master, zclient_connect, zclient, 0, | |
3262 | &zclient->t_connect); | |
3263 | break; | |
3264 | case ZCLIENT_CONNECT: | |
3265 | if (zclient_debug) | |
3266 | zlog_debug( | |
3267 | "zclient connect failures: %d schedule interval is now %d", | |
3268 | zclient->fail, zclient->fail < 3 ? 10 : 60); | |
3269 | thread_add_timer(zclient->master, zclient_connect, zclient, | |
3270 | zclient->fail < 3 ? 10 : 60, | |
3271 | &zclient->t_connect); | |
3272 | break; | |
3273 | case ZCLIENT_READ: | |
3274 | zclient->t_read = NULL; | |
3275 | thread_add_read(zclient->master, zclient_read, zclient, | |
3276 | zclient->sock, &zclient->t_read); | |
3277 | break; | |
3278 | } | |
718e3744 | 3279 | } |
b5114685 | 3280 | |
e0ae31b8 DS |
3281 | void zclient_interface_set_master(struct zclient *client, |
3282 | struct interface *master, | |
3283 | struct interface *slave) | |
3284 | { | |
3285 | struct stream *s; | |
3286 | ||
3287 | s = client->obuf; | |
3288 | stream_reset(s); | |
3289 | ||
a36898e7 | 3290 | zclient_create_header(s, ZEBRA_INTERFACE_SET_MASTER, master->vrf_id); |
e0ae31b8 | 3291 | |
a36898e7 | 3292 | stream_putl(s, master->vrf_id); |
e0ae31b8 | 3293 | stream_putl(s, master->ifindex); |
a36898e7 | 3294 | stream_putl(s, slave->vrf_id); |
e0ae31b8 DS |
3295 | stream_putl(s, slave->ifindex); |
3296 | ||
3297 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3298 | zclient_send_message(client); | |
3299 | } |