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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" |
dfacea4a | 40 | #include "tc.h" |
98cbbaea | 41 | #include "nexthop_group.h" |
1ca3850c | 42 | #include "lib_errors.h" |
31f937fb | 43 | #include "srte.h" |
61e6de9d | 44 | #include "printfrr.h" |
f2867068 | 45 | #include "srv6.h" |
6b0655a2 | 46 | |
bf8d3d6a DL |
47 | DEFINE_MTYPE_STATIC(LIB, ZCLIENT, "Zclient"); |
48 | DEFINE_MTYPE_STATIC(LIB, REDIST_INST, "Redistribution instance IDs"); | |
4a1ab8e4 | 49 | |
718e3744 | 50 | /* Zebra client events. */ |
91f2045d | 51 | enum zclient_event { ZCLIENT_SCHEDULE, ZCLIENT_READ, ZCLIENT_CONNECT }; |
718e3744 | 52 | |
53 | /* Prototype for event manager. */ | |
91f2045d | 54 | static void zclient_event(enum zclient_event, struct zclient *); |
718e3744 | 55 | |
41ce5384 QY |
56 | static void zebra_interface_if_set_value(struct stream *s, |
57 | struct interface *ifp); | |
26f8f6fe | 58 | |
17da84a4 KS |
59 | struct zclient_options zclient_options_default = {.receive_notify = false, |
60 | .synchronous = false}; | |
c17faa4b | 61 | |
689f5a8c DL |
62 | struct sockaddr_storage zclient_addr; |
63 | socklen_t zclient_addr_len; | |
b5114685 | 64 | |
718e3744 | 65 | /* This file local debug flag. */ |
c17faa4b | 66 | static int zclient_debug; |
e1a1880d | 67 | |
718e3744 | 68 | /* Allocate zclient structure. */ |
26f63a1e | 69 | struct zclient *zclient_new(struct thread_master *master, |
a243d1db DL |
70 | struct zclient_options *opt, |
71 | zclient_handler *const *handlers, size_t n_handlers) | |
718e3744 | 72 | { |
d62a17ae | 73 | struct zclient *zclient; |
f3f45626 DS |
74 | size_t stream_size = |
75 | MAX(ZEBRA_MAX_PACKET_SIZ, sizeof(struct zapi_route)); | |
76 | ||
d62a17ae | 77 | zclient = XCALLOC(MTYPE_ZCLIENT, sizeof(struct zclient)); |
718e3744 | 78 | |
f3f45626 DS |
79 | zclient->ibuf = stream_new(stream_size); |
80 | zclient->obuf = stream_new(stream_size); | |
d62a17ae | 81 | zclient->wb = buffer_new(0); |
82 | zclient->master = master; | |
718e3744 | 83 | |
a243d1db DL |
84 | zclient->handlers = handlers; |
85 | zclient->n_handlers = n_handlers; | |
86 | ||
e1a1880d | 87 | zclient->receive_notify = opt->receive_notify; |
17da84a4 | 88 | zclient->synchronous = opt->synchronous; |
e1a1880d | 89 | |
d62a17ae | 90 | return zclient; |
718e3744 | 91 | } |
92 | ||
228da428 | 93 | /* This function is only called when exiting, because |
634f9ea2 | 94 | many parts of the code do not check for I/O errors, so they could |
95 | reference an invalid pointer if the structure was ever freed. | |
634f9ea2 | 96 | |
228da428 | 97 | Free zclient structure. */ |
d62a17ae | 98 | void zclient_free(struct zclient *zclient) |
718e3744 | 99 | { |
d62a17ae | 100 | if (zclient->ibuf) |
101 | stream_free(zclient->ibuf); | |
102 | if (zclient->obuf) | |
103 | stream_free(zclient->obuf); | |
104 | if (zclient->wb) | |
105 | buffer_free(zclient->wb); | |
106 | ||
107 | XFREE(MTYPE_ZCLIENT, zclient); | |
718e3744 | 108 | } |
109 | ||
d7c0a89a QY |
110 | unsigned short *redist_check_instance(struct redist_proto *red, |
111 | unsigned short instance) | |
7c8ff89e | 112 | { |
d62a17ae | 113 | struct listnode *node; |
d7c0a89a | 114 | unsigned short *id; |
7c8ff89e | 115 | |
d62a17ae | 116 | if (!red->instances) |
117 | return NULL; | |
7c8ff89e | 118 | |
d62a17ae | 119 | for (ALL_LIST_ELEMENTS_RO(red->instances, node, id)) |
120 | if (*id == instance) | |
121 | return id; | |
7c8ff89e | 122 | |
d62a17ae | 123 | return NULL; |
7c8ff89e DS |
124 | } |
125 | ||
d7c0a89a | 126 | void redist_add_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 127 | { |
d7c0a89a | 128 | unsigned short *in; |
7c8ff89e | 129 | |
d62a17ae | 130 | red->enabled = 1; |
7c8ff89e | 131 | |
d62a17ae | 132 | if (!red->instances) |
133 | red->instances = list_new(); | |
7c8ff89e | 134 | |
d7c0a89a | 135 | in = XMALLOC(MTYPE_REDIST_INST, sizeof(unsigned short)); |
d62a17ae | 136 | *in = instance; |
137 | listnode_add(red->instances, in); | |
7c8ff89e DS |
138 | } |
139 | ||
d7c0a89a | 140 | void redist_del_instance(struct redist_proto *red, unsigned short instance) |
7c8ff89e | 141 | { |
d7c0a89a | 142 | unsigned short *id; |
d62a17ae | 143 | |
144 | id = redist_check_instance(red, instance); | |
145 | if (!id) | |
146 | return; | |
147 | ||
148 | listnode_delete(red->instances, id); | |
149 | XFREE(MTYPE_REDIST_INST, id); | |
150 | if (!red->instances->count) { | |
151 | red->enabled = 0; | |
6a154c88 | 152 | list_delete(&red->instances); |
d62a17ae | 153 | } |
7c8ff89e DS |
154 | } |
155 | ||
24c370dd QY |
156 | void redist_del_all_instances(struct redist_proto *red) |
157 | { | |
158 | struct listnode *ln, *nn; | |
159 | unsigned short *id; | |
160 | ||
161 | if (!red->instances) | |
162 | return; | |
163 | ||
164 | for (ALL_LIST_ELEMENTS(red->instances, ln, nn, id)) | |
165 | redist_del_instance(red, *id); | |
166 | } | |
167 | ||
718e3744 | 168 | /* Stop zebra client services. */ |
d62a17ae | 169 | void zclient_stop(struct zclient *zclient) |
718e3744 | 170 | { |
d62a17ae | 171 | afi_t afi; |
172 | int i; | |
173 | ||
174 | if (zclient_debug) | |
2be4d61a | 175 | zlog_debug("zclient %p stopped", zclient); |
d62a17ae | 176 | |
177 | /* Stop threads. */ | |
178 | THREAD_OFF(zclient->t_read); | |
179 | THREAD_OFF(zclient->t_connect); | |
180 | THREAD_OFF(zclient->t_write); | |
181 | ||
182 | /* Reset streams. */ | |
183 | stream_reset(zclient->ibuf); | |
184 | stream_reset(zclient->obuf); | |
185 | ||
186 | /* Empty the write buffer. */ | |
187 | buffer_reset(zclient->wb); | |
188 | ||
189 | /* Close socket. */ | |
190 | if (zclient->sock >= 0) { | |
191 | close(zclient->sock); | |
192 | zclient->sock = -1; | |
193 | } | |
194 | zclient->fail = 0; | |
195 | ||
196 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
197 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
198 | vrf_bitmap_free(zclient->redist[afi][i]); | |
199 | zclient->redist[afi][i] = VRF_BITMAP_NULL; | |
200 | } | |
201 | redist_del_instance( | |
202 | &zclient->mi_redist[afi][zclient->redist_default], | |
203 | zclient->instance); | |
41246cb6 | 204 | |
49db7a7b RW |
205 | vrf_bitmap_free(zclient->default_information[afi]); |
206 | zclient->default_information[afi] = VRF_BITMAP_NULL; | |
207 | } | |
718e3744 | 208 | } |
209 | ||
d62a17ae | 210 | void zclient_reset(struct zclient *zclient) |
718e3744 | 211 | { |
d62a17ae | 212 | afi_t afi; |
3d68677e | 213 | |
d62a17ae | 214 | zclient_stop(zclient); |
3d68677e | 215 | |
d62a17ae | 216 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
217 | redist_del_instance( | |
218 | &zclient->mi_redist[afi][zclient->redist_default], | |
219 | zclient->instance); | |
3d68677e | 220 | |
996c9314 LB |
221 | zclient_init(zclient, zclient->redist_default, zclient->instance, |
222 | zclient->privs); | |
718e3744 | 223 | } |
224 | ||
689f5a8c DL |
225 | /** |
226 | * Connect to zebra daemon. | |
227 | * @param zclient a pointer to zclient structure | |
228 | * @return socket fd just to make sure that connection established | |
229 | * @see zclient_init | |
26f63a1e | 230 | * @see zclient_new |
689f5a8c DL |
231 | */ |
232 | int zclient_socket_connect(struct zclient *zclient) | |
718e3744 | 233 | { |
d62a17ae | 234 | int sock; |
235 | int ret; | |
d62a17ae | 236 | |
237 | /* We should think about IPv6 connection. */ | |
689f5a8c | 238 | sock = socket(zclient_addr.ss_family, SOCK_STREAM, 0); |
d62a17ae | 239 | if (sock < 0) |
240 | return -1; | |
241 | ||
689f5a8c | 242 | set_cloexec(sock); |
338b8e91 | 243 | setsockopt_so_sendbuf(sock, 1048576); |
342213ea | 244 | |
d62a17ae | 245 | /* Connect to zebra. */ |
996c9314 | 246 | ret = connect(sock, (struct sockaddr *)&zclient_addr, zclient_addr_len); |
d62a17ae | 247 | if (ret < 0) { |
248 | if (zclient_debug) | |
15569c58 DA |
249 | zlog_debug("%s connect failure: %d(%s)", __func__, |
250 | errno, safe_strerror(errno)); | |
d62a17ae | 251 | close(sock); |
252 | return -1; | |
253 | } | |
718e3744 | 254 | |
689f5a8c | 255 | zclient->sock = sock; |
d62a17ae | 256 | return sock; |
718e3744 | 257 | } |
258 | ||
8a3f8f2e | 259 | static enum zclient_send_status zclient_failed(struct zclient *zclient) |
634f9ea2 | 260 | { |
d62a17ae | 261 | zclient->fail++; |
262 | zclient_stop(zclient); | |
263 | zclient_event(ZCLIENT_CONNECT, zclient); | |
8a3f8f2e | 264 | return ZCLIENT_SEND_FAILURE; |
634f9ea2 | 265 | } |
266 | ||
cc9f21da | 267 | static void zclient_flush_data(struct thread *thread) |
634f9ea2 | 268 | { |
d62a17ae | 269 | struct zclient *zclient = THREAD_ARG(thread); |
270 | ||
271 | zclient->t_write = NULL; | |
272 | if (zclient->sock < 0) | |
cc9f21da | 273 | return; |
d62a17ae | 274 | switch (buffer_flush_available(zclient->wb, zclient->sock)) { |
275 | case BUFFER_ERROR: | |
ade6974d | 276 | flog_err( |
450971aa | 277 | EC_LIB_ZAPI_SOCKET, |
ade6974d QY |
278 | "%s: buffer_flush_available failed on zclient fd %d, closing", |
279 | __func__, zclient->sock); | |
cc9f21da DS |
280 | zclient_failed(zclient); |
281 | return; | |
d62a17ae | 282 | case BUFFER_PENDING: |
283 | zclient->t_write = NULL; | |
284 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
285 | zclient->sock, &zclient->t_write); | |
286 | break; | |
287 | case BUFFER_EMPTY: | |
db71415b DS |
288 | if (zclient->zebra_buffer_write_ready) |
289 | (*zclient->zebra_buffer_write_ready)(); | |
d62a17ae | 290 | break; |
291 | } | |
634f9ea2 | 292 | } |
293 | ||
db71415b | 294 | /* |
8a3f8f2e DS |
295 | * Returns: |
296 | * ZCLIENT_SEND_FAILED - is a failure | |
297 | * ZCLIENT_SEND_SUCCESS - means we sent data to zebra | |
298 | * ZCLIENT_SEND_BUFFERED - means we are buffering | |
db71415b | 299 | */ |
8a3f8f2e | 300 | enum zclient_send_status zclient_send_message(struct zclient *zclient) |
634f9ea2 | 301 | { |
d62a17ae | 302 | if (zclient->sock < 0) |
8a3f8f2e | 303 | return ZCLIENT_SEND_FAILURE; |
d62a17ae | 304 | switch (buffer_write(zclient->wb, zclient->sock, |
305 | STREAM_DATA(zclient->obuf), | |
306 | stream_get_endp(zclient->obuf))) { | |
307 | case BUFFER_ERROR: | |
450971aa | 308 | flog_err(EC_LIB_ZAPI_SOCKET, |
decbd929 DS |
309 | "%s: buffer_write failed to zclient fd %d, closing", |
310 | __func__, zclient->sock); | |
d62a17ae | 311 | return zclient_failed(zclient); |
d62a17ae | 312 | case BUFFER_EMPTY: |
313 | THREAD_OFF(zclient->t_write); | |
8a3f8f2e | 314 | return ZCLIENT_SEND_SUCCESS; |
d62a17ae | 315 | case BUFFER_PENDING: |
316 | thread_add_write(zclient->master, zclient_flush_data, zclient, | |
317 | zclient->sock, &zclient->t_write); | |
8a3f8f2e | 318 | return ZCLIENT_SEND_BUFFERED; |
d62a17ae | 319 | } |
db71415b DS |
320 | |
321 | /* should not get here */ | |
8a3f8f2e | 322 | return ZCLIENT_SEND_SUCCESS; |
634f9ea2 | 323 | } |
324 | ||
6e8e0925 DS |
325 | /* |
326 | * If we add more data to this structure please ensure that | |
327 | * struct zmsghdr in lib/zclient.h is updated as appropriate. | |
328 | */ | |
d62a17ae | 329 | void zclient_create_header(struct stream *s, uint16_t command, vrf_id_t vrf_id) |
c1b9800a | 330 | { |
d62a17ae | 331 | /* length placeholder, caller can update */ |
332 | stream_putw(s, ZEBRA_HEADER_SIZE); | |
333 | stream_putc(s, ZEBRA_HEADER_MARKER); | |
334 | stream_putc(s, ZSERV_VERSION); | |
a9ff90c4 | 335 | stream_putl(s, vrf_id); |
d62a17ae | 336 | stream_putw(s, command); |
c1b9800a | 337 | } |
338 | ||
d7c0a89a QY |
339 | int zclient_read_header(struct stream *s, int sock, uint16_t *size, |
340 | uint8_t *marker, uint8_t *version, vrf_id_t *vrf_id, | |
341 | uint16_t *cmd) | |
55119089 | 342 | { |
d62a17ae | 343 | if (stream_read(s, sock, ZEBRA_HEADER_SIZE) != ZEBRA_HEADER_SIZE) |
344 | return -1; | |
345 | ||
ec93aa12 DS |
346 | STREAM_GETW(s, *size); |
347 | *size -= ZEBRA_HEADER_SIZE; | |
348 | STREAM_GETC(s, *marker); | |
349 | STREAM_GETC(s, *version); | |
a9ff90c4 | 350 | STREAM_GETL(s, *vrf_id); |
ec93aa12 | 351 | STREAM_GETW(s, *cmd); |
d62a17ae | 352 | |
353 | if (*version != ZSERV_VERSION || *marker != ZEBRA_HEADER_MARKER) { | |
1c50c1c0 QY |
354 | flog_err( |
355 | EC_LIB_ZAPI_MISSMATCH, | |
356 | "%s: socket %d version mismatch, marker %d, version %d", | |
357 | __func__, sock, *marker, *version); | |
d62a17ae | 358 | return -1; |
359 | } | |
360 | ||
361 | if (*size && stream_read(s, sock, *size) != *size) | |
362 | return -1; | |
363 | ||
364 | return 0; | |
6a2b0d9a RW |
365 | stream_failure: |
366 | return -1; | |
55119089 ND |
367 | } |
368 | ||
124ead27 QY |
369 | bool zapi_parse_header(struct stream *zmsg, struct zmsghdr *hdr) |
370 | { | |
371 | STREAM_GETW(zmsg, hdr->length); | |
372 | STREAM_GETC(zmsg, hdr->marker); | |
373 | STREAM_GETC(zmsg, hdr->version); | |
107afcd1 | 374 | STREAM_GETL(zmsg, hdr->vrf_id); |
124ead27 QY |
375 | STREAM_GETW(zmsg, hdr->command); |
376 | return true; | |
377 | stream_failure: | |
378 | return false; | |
379 | } | |
380 | ||
634f9ea2 | 381 | /* Send simple Zebra message. */ |
7cfdb485 DS |
382 | static enum zclient_send_status zebra_message_send(struct zclient *zclient, |
383 | int command, vrf_id_t vrf_id) | |
718e3744 | 384 | { |
d62a17ae | 385 | struct stream *s; |
718e3744 | 386 | |
d62a17ae | 387 | /* Get zclient output buffer. */ |
388 | s = zclient->obuf; | |
389 | stream_reset(s); | |
718e3744 | 390 | |
d62a17ae | 391 | /* Send very simple command only Zebra message. */ |
392 | zclient_create_header(s, command, vrf_id); | |
393 | ||
394 | return zclient_send_message(zclient); | |
718e3744 | 395 | } |
396 | ||
7cfdb485 | 397 | enum zclient_send_status zclient_send_hello(struct zclient *zclient) |
2ea1ab1c | 398 | { |
d62a17ae | 399 | struct stream *s; |
400 | ||
17da84a4 | 401 | if (zclient->redist_default || zclient->synchronous) { |
d62a17ae | 402 | s = zclient->obuf; |
403 | stream_reset(s); | |
404 | ||
405 | /* The VRF ID in the HELLO message is always 0. */ | |
406 | zclient_create_header(s, ZEBRA_HELLO, VRF_DEFAULT); | |
407 | stream_putc(s, zclient->redist_default); | |
408 | stream_putw(s, zclient->instance); | |
4e0b5b31 | 409 | stream_putl(s, zclient->session_id); |
e1a1880d DS |
410 | if (zclient->receive_notify) |
411 | stream_putc(s, 1); | |
412 | else | |
413 | stream_putc(s, 0); | |
17da84a4 KS |
414 | if (zclient->synchronous) |
415 | stream_putc(s, 1); | |
416 | else | |
417 | stream_putc(s, 0); | |
e1a1880d | 418 | |
d62a17ae | 419 | stream_putw_at(s, 0, stream_get_endp(s)); |
420 | return zclient_send_message(zclient); | |
421 | } | |
422 | ||
7cfdb485 | 423 | return ZCLIENT_SEND_SUCCESS; |
2ea1ab1c VT |
424 | } |
425 | ||
7cfdb485 DS |
426 | enum zclient_send_status zclient_send_vrf_label(struct zclient *zclient, |
427 | vrf_id_t vrf_id, afi_t afi, | |
428 | mpls_label_t label, | |
429 | enum lsp_types_t ltype) | |
c83c5e44 DS |
430 | { |
431 | struct stream *s; | |
432 | ||
433 | s = zclient->obuf; | |
434 | stream_reset(s); | |
435 | ||
436 | zclient_create_header(s, ZEBRA_VRF_LABEL, vrf_id); | |
437 | stream_putl(s, label); | |
7d061b3c | 438 | stream_putc(s, afi); |
339e36d2 | 439 | stream_putc(s, ltype); |
c83c5e44 | 440 | stream_putw_at(s, 0, stream_get_endp(s)); |
db71415b | 441 | return zclient_send_message(zclient); |
c83c5e44 DS |
442 | } |
443 | ||
618538f8 HS |
444 | enum zclient_send_status zclient_send_localsid(struct zclient *zclient, |
445 | const struct in6_addr *sid, ifindex_t oif, | |
446 | enum seg6local_action_t action, | |
447 | const struct seg6local_context *context) | |
448 | { | |
1bda3e62 HS |
449 | struct prefix_ipv6 p = {}; |
450 | struct zapi_route api = {}; | |
d0c775e3 | 451 | struct zapi_nexthop *znh; |
618538f8 | 452 | |
618538f8 | 453 | p.family = AF_INET6; |
13ccce6e | 454 | p.prefixlen = IPV6_MAX_BITLEN; |
618538f8 HS |
455 | p.prefix = *sid; |
456 | ||
618538f8 | 457 | api.vrf_id = VRF_DEFAULT; |
8563b972 | 458 | api.type = zclient->redist_default; |
618538f8 HS |
459 | api.instance = 0; |
460 | api.safi = SAFI_UNICAST; | |
461 | memcpy(&api.prefix, &p, sizeof(p)); | |
462 | ||
463 | if (action == ZEBRA_SEG6_LOCAL_ACTION_UNSPEC) | |
464 | return zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); | |
465 | ||
466 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); | |
618538f8 HS |
467 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); |
468 | ||
d0c775e3 CS |
469 | znh = &api.nexthops[0]; |
470 | ||
471 | memset(znh, 0, sizeof(*znh)); | |
472 | ||
473 | znh->type = NEXTHOP_TYPE_IFINDEX; | |
474 | znh->ifindex = oif; | |
475 | SET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_SEG6LOCAL); | |
476 | znh->seg6local_action = action; | |
477 | memcpy(&znh->seg6local_ctx, context, sizeof(struct seg6local_context)); | |
618538f8 | 478 | |
618538f8 HS |
479 | api.nexthop_num = 1; |
480 | ||
481 | return zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api); | |
482 | } | |
483 | ||
0e5223e7 | 484 | /* Send register requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 485 | void zclient_send_reg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
7076bb2f | 486 | { |
d62a17ae | 487 | int i; |
488 | afi_t afi; | |
489 | ||
d62a17ae | 490 | /* If not connected to the zebra yet. */ |
491 | if (zclient->sock < 0) | |
492 | return; | |
493 | ||
494 | if (zclient_debug) | |
495 | zlog_debug("%s: send register messages for VRF %u", __func__, | |
496 | vrf_id); | |
497 | ||
498 | /* We need router-id information. */ | |
98a3fb0a SM |
499 | zclient_send_router_id_update(zclient, ZEBRA_ROUTER_ID_ADD, AFI_IP, |
500 | vrf_id); | |
d62a17ae | 501 | |
eeb2dfa3 DS |
502 | /* We need interface information. */ |
503 | zebra_message_send(zclient, ZEBRA_INTERFACE_ADD, vrf_id); | |
504 | ||
d62a17ae | 505 | /* Set unwanted redistribute route. */ |
506 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
507 | vrf_bitmap_set(zclient->redist[afi][zclient->redist_default], | |
508 | vrf_id); | |
509 | ||
510 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
511 | if (vrf_id == VRF_DEFAULT) { |
512 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
513 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
514 | if (!zclient->mi_redist[afi][i].enabled) | |
515 | continue; | |
516 | ||
517 | struct listnode *node; | |
d7c0a89a | 518 | unsigned short *id; |
0d9e7f45 DS |
519 | |
520 | for (ALL_LIST_ELEMENTS_RO( | |
521 | zclient->mi_redist[afi][i] | |
996c9314 LB |
522 | .instances, |
523 | node, id)) | |
0d9e7f45 DS |
524 | if (!(i == zclient->redist_default |
525 | && *id == zclient->instance)) | |
526 | zebra_redistribute_send( | |
527 | ZEBRA_REDISTRIBUTE_ADD, | |
996c9314 | 528 | zclient, afi, i, *id, |
0d9e7f45 DS |
529 | VRF_DEFAULT); |
530 | } | |
531 | } | |
532 | } | |
d62a17ae | 533 | |
70172b1c | 534 | /* Resend all redistribute request. */ |
49db7a7b | 535 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
d62a17ae | 536 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
537 | if (i != zclient->redist_default | |
538 | && vrf_bitmap_check(zclient->redist[afi][i], | |
539 | vrf_id)) | |
540 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, | |
541 | zclient, afi, i, 0, | |
542 | vrf_id); | |
543 | ||
49db7a7b | 544 | /* If default information is needed. */ |
d7637898 | 545 | if (vrf_bitmap_check(zclient->default_information[afi], vrf_id)) |
49db7a7b RW |
546 | zebra_redistribute_default_send( |
547 | ZEBRA_REDISTRIBUTE_DEFAULT_ADD, zclient, afi, | |
548 | vrf_id); | |
549 | } | |
7076bb2f FL |
550 | } |
551 | ||
0e5223e7 | 552 | /* Send unregister requests to zebra daemon for the information in a VRF. */ |
d62a17ae | 553 | void zclient_send_dereg_requests(struct zclient *zclient, vrf_id_t vrf_id) |
0e5223e7 | 554 | { |
d62a17ae | 555 | int i; |
556 | afi_t afi; | |
557 | ||
d62a17ae | 558 | /* If not connected to the zebra yet. */ |
559 | if (zclient->sock < 0) | |
560 | return; | |
561 | ||
562 | if (zclient_debug) | |
563 | zlog_debug("%s: send deregister messages for VRF %u", __func__, | |
564 | vrf_id); | |
565 | ||
566 | /* We need router-id information. */ | |
98a3fb0a SM |
567 | zclient_send_router_id_update(zclient, ZEBRA_ROUTER_ID_DELETE, AFI_IP, |
568 | vrf_id); | |
d62a17ae | 569 | |
eeb2dfa3 | 570 | zebra_message_send(zclient, ZEBRA_INTERFACE_DELETE, vrf_id); |
d62a17ae | 571 | |
d62a17ae | 572 | /* Set unwanted redistribute route. */ |
573 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
09eef679 DS |
574 | vrf_bitmap_unset(zclient->redist[afi][zclient->redist_default], |
575 | vrf_id); | |
d62a17ae | 576 | |
577 | /* Flush all redistribute request. */ | |
0d9e7f45 DS |
578 | if (vrf_id == VRF_DEFAULT) { |
579 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
580 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
581 | if (!zclient->mi_redist[afi][i].enabled) | |
582 | continue; | |
583 | ||
584 | struct listnode *node; | |
d7c0a89a | 585 | unsigned short *id; |
0d9e7f45 DS |
586 | |
587 | for (ALL_LIST_ELEMENTS_RO( | |
588 | zclient->mi_redist[afi][i] | |
996c9314 LB |
589 | .instances, |
590 | node, id)) | |
0d9e7f45 DS |
591 | if (!(i == zclient->redist_default |
592 | && *id == zclient->instance)) | |
593 | zebra_redistribute_send( | |
594 | ZEBRA_REDISTRIBUTE_DELETE, | |
996c9314 | 595 | zclient, afi, i, *id, |
0d9e7f45 DS |
596 | VRF_DEFAULT); |
597 | } | |
598 | } | |
599 | } | |
d62a17ae | 600 | |
601 | /* Flush all redistribute request. */ | |
49db7a7b | 602 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
d62a17ae | 603 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
604 | if (i != zclient->redist_default | |
605 | && vrf_bitmap_check(zclient->redist[afi][i], | |
606 | vrf_id)) | |
607 | zebra_redistribute_send( | |
608 | ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
609 | i, 0, vrf_id); | |
610 | ||
49db7a7b | 611 | /* If default information is needed. */ |
d7637898 | 612 | if (vrf_bitmap_check(zclient->default_information[afi], vrf_id)) |
49db7a7b RW |
613 | zebra_redistribute_default_send( |
614 | ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, zclient, afi, | |
615 | vrf_id); | |
616 | } | |
0e5223e7 | 617 | } |
618 | ||
7cfdb485 DS |
619 | enum zclient_send_status |
620 | zclient_send_router_id_update(struct zclient *zclient, | |
621 | zebra_message_types_t type, afi_t afi, | |
622 | vrf_id_t vrf_id) | |
98a3fb0a SM |
623 | { |
624 | struct stream *s = zclient->obuf; | |
625 | stream_reset(s); | |
626 | zclient_create_header(s, type, vrf_id); | |
627 | stream_putw(s, afi); | |
628 | stream_putw_at(s, 0, stream_get_endp(s)); | |
629 | return zclient_send_message(zclient); | |
630 | } | |
631 | ||
4a04e5f7 | 632 | /* Send request to zebra daemon to start or stop RA. */ |
7cfdb485 DS |
633 | enum zclient_send_status |
634 | zclient_send_interface_radv_req(struct zclient *zclient, vrf_id_t vrf_id, | |
635 | struct interface *ifp, int enable, | |
bbad0276 | 636 | uint32_t ra_interval) |
4a04e5f7 | 637 | { |
d62a17ae | 638 | struct stream *s; |
4a04e5f7 | 639 | |
d62a17ae | 640 | /* If not connected to the zebra yet. */ |
641 | if (zclient->sock < 0) | |
7cfdb485 | 642 | return ZCLIENT_SEND_FAILURE; |
4a04e5f7 | 643 | |
d62a17ae | 644 | /* Form and send message. */ |
645 | s = zclient->obuf; | |
646 | stream_reset(s); | |
4a04e5f7 | 647 | |
d62a17ae | 648 | if (enable) |
649 | zclient_create_header(s, ZEBRA_INTERFACE_ENABLE_RADV, vrf_id); | |
650 | else | |
651 | zclient_create_header(s, ZEBRA_INTERFACE_DISABLE_RADV, vrf_id); | |
4a04e5f7 | 652 | |
d62a17ae | 653 | stream_putl(s, ifp->ifindex); |
654 | stream_putl(s, ra_interval); | |
4a04e5f7 | 655 | |
d62a17ae | 656 | stream_putw_at(s, 0, stream_get_endp(s)); |
4a04e5f7 | 657 | |
db71415b | 658 | return zclient_send_message(zclient); |
4a04e5f7 | 659 | } |
660 | ||
7cfdb485 DS |
661 | enum zclient_send_status |
662 | zclient_send_interface_protodown(struct zclient *zclient, vrf_id_t vrf_id, | |
663 | struct interface *ifp, bool down) | |
c3bd894e QY |
664 | { |
665 | struct stream *s; | |
666 | ||
667 | if (zclient->sock < 0) | |
7cfdb485 | 668 | return ZCLIENT_SEND_FAILURE; |
c3bd894e QY |
669 | |
670 | s = zclient->obuf; | |
671 | stream_reset(s); | |
672 | zclient_create_header(s, ZEBRA_INTERFACE_SET_PROTODOWN, vrf_id); | |
673 | stream_putl(s, ifp->ifindex); | |
674 | stream_putc(s, !!down); | |
675 | stream_putw_at(s, 0, stream_get_endp(s)); | |
db71415b | 676 | return zclient_send_message(zclient); |
c3bd894e QY |
677 | } |
678 | ||
718e3744 | 679 | /* Make connection to zebra daemon. */ |
d62a17ae | 680 | int zclient_start(struct zclient *zclient) |
718e3744 | 681 | { |
d62a17ae | 682 | if (zclient_debug) |
683 | zlog_info("zclient_start is called"); | |
684 | ||
d62a17ae | 685 | /* If already connected to the zebra. */ |
686 | if (zclient->sock >= 0) | |
687 | return 0; | |
688 | ||
689 | /* Check connect thread. */ | |
690 | if (zclient->t_connect) | |
691 | return 0; | |
692 | ||
693 | if (zclient_socket_connect(zclient) < 0) { | |
694 | if (zclient_debug) | |
695 | zlog_debug("zclient connection fail"); | |
696 | zclient->fail++; | |
697 | zclient_event(ZCLIENT_CONNECT, zclient); | |
698 | return -1; | |
699 | } | |
718e3744 | 700 | |
d62a17ae | 701 | if (set_nonblocking(zclient->sock) < 0) |
450971aa | 702 | flog_err(EC_LIB_ZAPI_SOCKET, "%s: set_nonblocking(%d) failed", |
ade6974d | 703 | __func__, zclient->sock); |
718e3744 | 704 | |
d62a17ae | 705 | /* Clear fail count. */ |
706 | zclient->fail = 0; | |
707 | if (zclient_debug) | |
708 | zlog_debug("zclient connect success with socket [%d]", | |
709 | zclient->sock); | |
718e3744 | 710 | |
d62a17ae | 711 | /* Create read thread. */ |
712 | zclient_event(ZCLIENT_READ, zclient); | |
718e3744 | 713 | |
17da84a4 | 714 | zclient_send_hello(zclient); |
718e3744 | 715 | |
22761baa DS |
716 | zebra_message_send(zclient, ZEBRA_INTERFACE_ADD, VRF_DEFAULT); |
717 | ||
d62a17ae | 718 | /* Inform the successful connection. */ |
719 | if (zclient->zebra_connected) | |
720 | (*zclient->zebra_connected)(zclient); | |
718e3744 | 721 | |
d62a17ae | 722 | return 0; |
718e3744 | 723 | } |
6b0655a2 | 724 | |
078430f6 DS |
725 | /* Initialize zebra client. Argument redist_default is unwanted |
726 | redistribute route type. */ | |
d7c0a89a QY |
727 | void zclient_init(struct zclient *zclient, int redist_default, |
728 | unsigned short instance, struct zebra_privs_t *privs) | |
078430f6 | 729 | { |
d62a17ae | 730 | int afi, i; |
731 | ||
d62a17ae | 732 | /* Set -1 to the default socket value. */ |
733 | zclient->sock = -1; | |
342213ea | 734 | zclient->privs = privs; |
d62a17ae | 735 | |
736 | /* Clear redistribution flags. */ | |
737 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
738 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
739 | zclient->redist[afi][i] = vrf_bitmap_init(); | |
740 | ||
741 | /* Set unwanted redistribute route. bgpd does not need BGP route | |
742 | redistribution. */ | |
743 | zclient->redist_default = redist_default; | |
744 | zclient->instance = instance; | |
745 | /* Pending: make afi(s) an arg. */ | |
49db7a7b | 746 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
d62a17ae | 747 | redist_add_instance(&zclient->mi_redist[afi][redist_default], |
748 | instance); | |
749 | ||
49db7a7b RW |
750 | /* Set default-information redistribute to zero. */ |
751 | zclient->default_information[afi] = vrf_bitmap_init(); | |
752 | } | |
d62a17ae | 753 | |
754 | if (zclient_debug) | |
cdc6ed90 | 755 | zlog_debug("scheduling zclient connection"); |
d62a17ae | 756 | |
757 | zclient_event(ZCLIENT_SCHEDULE, zclient); | |
7076bb2f | 758 | } |
078430f6 | 759 | |
7076bb2f FL |
760 | /* This function is a wrapper function for calling zclient_start from |
761 | timer or event thread. */ | |
cc9f21da | 762 | static void zclient_connect(struct thread *t) |
7076bb2f | 763 | { |
d62a17ae | 764 | struct zclient *zclient; |
078430f6 | 765 | |
d62a17ae | 766 | zclient = THREAD_ARG(t); |
767 | zclient->t_connect = NULL; | |
078430f6 | 768 | |
d62a17ae | 769 | if (zclient_debug) |
770 | zlog_debug("zclient_connect is called"); | |
078430f6 | 771 | |
cc9f21da | 772 | zclient_start(zclient); |
078430f6 DS |
773 | } |
774 | ||
7cfdb485 | 775 | enum zclient_send_status zclient_send_rnh(struct zclient *zclient, int command, |
eb3c9d97 DL |
776 | const struct prefix *p, safi_t safi, |
777 | bool connected, bool resolve_via_def, | |
778 | vrf_id_t vrf_id) | |
3c192540 DS |
779 | { |
780 | struct stream *s; | |
781 | ||
782 | s = zclient->obuf; | |
783 | stream_reset(s); | |
784 | zclient_create_header(s, command, vrf_id); | |
6cd9a93d | 785 | stream_putc(s, (connected) ? 1 : 0); |
ed6cec97 | 786 | stream_putc(s, (resolve_via_def) ? 1 : 0); |
eb3c9d97 | 787 | stream_putw(s, safi); |
3c192540 DS |
788 | stream_putw(s, PREFIX_FAMILY(p)); |
789 | stream_putc(s, p->prefixlen); | |
790 | switch (PREFIX_FAMILY(p)) { | |
791 | case AF_INET: | |
792 | stream_put_in_addr(s, &p->u.prefix4); | |
793 | break; | |
794 | case AF_INET6: | |
795 | stream_put(s, &(p->u.prefix6), 16); | |
796 | break; | |
797 | default: | |
798 | break; | |
799 | } | |
800 | stream_putw_at(s, 0, stream_get_endp(s)); | |
801 | ||
802 | return zclient_send_message(zclient); | |
803 | } | |
804 | ||
d62a17ae | 805 | /* |
806 | * "xdr_encode"-like interface that allows daemon (client) to send | |
807 | * a message to zebra server for a route that needs to be | |
808 | * added/deleted to the kernel. Info about the route is specified | |
04772760 | 809 | * by the caller in a struct zapi_route. zapi_route_encode() then writes |
d62a17ae | 810 | * the info down the zclient socket using the stream_* functions. |
811 | * | |
812 | * The corresponding read ("xdr_decode") function on the server | |
04772760 | 813 | * side is zapi_route_decode(). |
d62a17ae | 814 | * |
d62a17ae | 815 | * If ZAPI_MESSAGE_DISTANCE is set, the distance value is written as a 1 |
816 | * byte value. | |
817 | * | |
32f7e999 | 818 | * If ZAPI_MESSAGE_METRIC is set, the metric value is written as a 4 |
d62a17ae | 819 | * byte value. |
820 | * | |
821 | * If ZAPI_MESSAGE_TAG is set, the tag value is written as a 4 byte value | |
822 | * | |
823 | * If ZAPI_MESSAGE_MTU is set, the mtu value is written as a 4 byte value | |
824 | * | |
825 | * XXX: No attention paid to alignment. | |
826 | */ | |
8a3f8f2e DS |
827 | enum zclient_send_status |
828 | zclient_route_send(uint8_t cmd, struct zclient *zclient, struct zapi_route *api) | |
657cde12 | 829 | { |
0e51b4a3 | 830 | if (zapi_route_encode(cmd, zclient->obuf, api) < 0) |
8a3f8f2e | 831 | return ZCLIENT_SEND_FAILURE; |
0e51b4a3 RW |
832 | return zclient_send_message(zclient); |
833 | } | |
834 | ||
3c6e0bd4 SW |
835 | static int zapi_nexthop_labels_cmp(const struct zapi_nexthop *next1, |
836 | const struct zapi_nexthop *next2) | |
837 | { | |
838 | if (next1->label_num > next2->label_num) | |
839 | return 1; | |
840 | ||
841 | if (next1->label_num < next2->label_num) | |
842 | return -1; | |
843 | ||
844 | return memcmp(next1->labels, next2->labels, next1->label_num); | |
845 | } | |
846 | ||
fbaa42f7 HS |
847 | static int zapi_nexthop_srv6_cmp(const struct zapi_nexthop *next1, |
848 | const struct zapi_nexthop *next2) | |
cb7775a9 | 849 | { |
fbaa42f7 HS |
850 | int ret = 0; |
851 | ||
852 | ret = memcmp(&next1->seg6_segs, &next2->seg6_segs, | |
853 | sizeof(struct in6_addr)); | |
854 | if (ret != 0) | |
855 | return ret; | |
856 | ||
cb7775a9 HS |
857 | if (next1->seg6local_action > next2->seg6local_action) |
858 | return 1; | |
859 | ||
860 | if (next1->seg6local_action < next2->seg6local_action) | |
861 | return -1; | |
862 | ||
863 | return memcmp(&next1->seg6local_ctx, &next2->seg6local_ctx, | |
864 | sizeof(struct seg6local_context)); | |
865 | } | |
866 | ||
3c6e0bd4 SW |
867 | static int zapi_nexthop_cmp_no_labels(const struct zapi_nexthop *next1, |
868 | const struct zapi_nexthop *next2) | |
869 | { | |
870 | int ret = 0; | |
871 | ||
872 | if (next1->vrf_id < next2->vrf_id) | |
873 | return -1; | |
874 | ||
875 | if (next1->vrf_id > next2->vrf_id) | |
876 | return 1; | |
877 | ||
878 | if (next1->type < next2->type) | |
879 | return -1; | |
880 | ||
881 | if (next1->type > next2->type) | |
882 | return 1; | |
883 | ||
bd054c1a DS |
884 | if (next1->weight < next2->weight) |
885 | return -1; | |
886 | ||
887 | if (next1->weight > next2->weight) | |
888 | return 1; | |
889 | ||
3c6e0bd4 SW |
890 | switch (next1->type) { |
891 | case NEXTHOP_TYPE_IPV4: | |
892 | case NEXTHOP_TYPE_IPV6: | |
893 | ret = nexthop_g_addr_cmp(next1->type, &next1->gate, | |
894 | &next2->gate); | |
895 | if (ret != 0) | |
896 | return ret; | |
897 | break; | |
898 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
899 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
900 | ret = nexthop_g_addr_cmp(next1->type, &next1->gate, | |
901 | &next2->gate); | |
902 | if (ret != 0) | |
903 | return ret; | |
904 | /* Intentional Fall-Through */ | |
905 | case NEXTHOP_TYPE_IFINDEX: | |
906 | if (next1->ifindex < next2->ifindex) | |
907 | return -1; | |
908 | ||
909 | if (next1->ifindex > next2->ifindex) | |
910 | return 1; | |
911 | break; | |
912 | case NEXTHOP_TYPE_BLACKHOLE: | |
913 | if (next1->bh_type < next2->bh_type) | |
914 | return -1; | |
915 | ||
916 | if (next1->bh_type > next2->bh_type) | |
917 | return 1; | |
918 | break; | |
919 | } | |
920 | ||
38fd3eda MS |
921 | if (next1->srte_color < next2->srte_color) |
922 | return -1; | |
923 | if (next1->srte_color > next2->srte_color) | |
924 | return 1; | |
925 | ||
926 | if (CHECK_FLAG(next1->flags, NEXTHOP_FLAG_HAS_BACKUP) || | |
927 | CHECK_FLAG(next2->flags, NEXTHOP_FLAG_HAS_BACKUP)) { | |
928 | ||
929 | if (!CHECK_FLAG(next1->flags, NEXTHOP_FLAG_HAS_BACKUP) && | |
930 | CHECK_FLAG(next2->flags, NEXTHOP_FLAG_HAS_BACKUP)) | |
931 | return -1; | |
932 | ||
933 | if (CHECK_FLAG(next1->flags, NEXTHOP_FLAG_HAS_BACKUP) && | |
934 | !CHECK_FLAG(next2->flags, NEXTHOP_FLAG_HAS_BACKUP)) | |
935 | return 1; | |
936 | ||
937 | if (next1->backup_num > 0 || next2->backup_num > 0) { | |
938 | ||
939 | if (next1->backup_num < next2->backup_num) | |
940 | return -1; | |
941 | ||
942 | if (next1->backup_num > next2->backup_num) | |
943 | return 1; | |
944 | ||
945 | ret = memcmp(next1->backup_idx, | |
946 | next2->backup_idx, next1->backup_num); | |
947 | if (ret != 0) | |
948 | return ret; | |
949 | } | |
950 | } | |
951 | ||
3c6e0bd4 SW |
952 | return 0; |
953 | } | |
954 | ||
955 | static int zapi_nexthop_cmp(const void *item1, const void *item2) | |
956 | { | |
957 | int ret = 0; | |
958 | ||
959 | const struct zapi_nexthop *next1 = item1; | |
960 | const struct zapi_nexthop *next2 = item2; | |
961 | ||
962 | ret = zapi_nexthop_cmp_no_labels(next1, next2); | |
963 | if (ret != 0) | |
964 | return ret; | |
965 | ||
966 | ret = zapi_nexthop_labels_cmp(next1, next2); | |
cb7775a9 HS |
967 | if (ret != 0) |
968 | return ret; | |
969 | ||
fbaa42f7 | 970 | ret = zapi_nexthop_srv6_cmp(next1, next2); |
3c6e0bd4 SW |
971 | |
972 | return ret; | |
973 | } | |
974 | ||
975 | static void zapi_nexthop_group_sort(struct zapi_nexthop *nh_grp, | |
976 | uint16_t nexthop_num) | |
977 | { | |
978 | qsort(nh_grp, nexthop_num, sizeof(struct zapi_nexthop), | |
979 | &zapi_nexthop_cmp); | |
980 | } | |
981 | ||
68a02e06 MS |
982 | /* |
983 | * Encode a single zapi nexthop | |
984 | */ | |
985 | int zapi_nexthop_encode(struct stream *s, const struct zapi_nexthop *api_nh, | |
31f937fb | 986 | uint32_t api_flags, uint32_t api_message) |
68a02e06 | 987 | { |
474aebd9 | 988 | int i, ret = 0; |
68a02e06 MS |
989 | int nh_flags = api_nh->flags; |
990 | ||
991 | stream_putl(s, api_nh->vrf_id); | |
992 | stream_putc(s, api_nh->type); | |
993 | ||
994 | /* If needed, set 'labelled nexthop' flag */ | |
995 | if (api_nh->label_num > 0) { | |
996 | SET_FLAG(nh_flags, ZAPI_NEXTHOP_FLAG_LABEL); | |
997 | ||
998 | /* Validate label count */ | |
999 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
1000 | ret = -1; | |
1001 | goto done; | |
1002 | } | |
1003 | } | |
1004 | ||
0a8881b4 | 1005 | /* If present, set 'weight' flag before encoding flags */ |
bd054c1a DS |
1006 | if (api_nh->weight) |
1007 | SET_FLAG(nh_flags, ZAPI_NEXTHOP_FLAG_WEIGHT); | |
1008 | ||
68a02e06 MS |
1009 | /* Note that we're only encoding a single octet */ |
1010 | stream_putc(s, nh_flags); | |
1011 | ||
1012 | switch (api_nh->type) { | |
1013 | case NEXTHOP_TYPE_BLACKHOLE: | |
1014 | stream_putc(s, api_nh->bh_type); | |
1015 | break; | |
1016 | case NEXTHOP_TYPE_IPV4: | |
68a02e06 MS |
1017 | case NEXTHOP_TYPE_IPV4_IFINDEX: |
1018 | stream_put_in_addr(s, &api_nh->gate.ipv4); | |
1019 | stream_putl(s, api_nh->ifindex); | |
1020 | break; | |
1021 | case NEXTHOP_TYPE_IFINDEX: | |
1022 | stream_putl(s, api_nh->ifindex); | |
1023 | break; | |
1024 | case NEXTHOP_TYPE_IPV6: | |
68a02e06 MS |
1025 | case NEXTHOP_TYPE_IPV6_IFINDEX: |
1026 | stream_write(s, (uint8_t *)&api_nh->gate.ipv6, | |
1027 | 16); | |
1028 | stream_putl(s, api_nh->ifindex); | |
1029 | break; | |
1030 | } | |
1031 | ||
1032 | /* We only encode labels if we have >0 - we use | |
1033 | * the per-nexthop flag above to signal that the count | |
1034 | * is present in the payload. | |
1035 | */ | |
1036 | if (api_nh->label_num > 0) { | |
1037 | stream_putc(s, api_nh->label_num); | |
d5ea1185 | 1038 | stream_putc(s, api_nh->label_type); |
68a02e06 MS |
1039 | stream_put(s, &api_nh->labels[0], |
1040 | api_nh->label_num * sizeof(mpls_label_t)); | |
1041 | } | |
1042 | ||
bd054c1a DS |
1043 | if (api_nh->weight) |
1044 | stream_putl(s, api_nh->weight); | |
1045 | ||
68a02e06 | 1046 | /* Router MAC for EVPN routes. */ |
5609e70f | 1047 | if (CHECK_FLAG(nh_flags, ZAPI_NEXTHOP_FLAG_EVPN)) |
68a02e06 MS |
1048 | stream_put(s, &(api_nh->rmac), |
1049 | sizeof(struct ethaddr)); | |
1050 | ||
31f937fb SM |
1051 | /* Color for Segment Routing TE. */ |
1052 | if (CHECK_FLAG(api_message, ZAPI_MESSAGE_SRTE)) | |
1053 | stream_putl(s, api_nh->srte_color); | |
1054 | ||
018c6488 | 1055 | /* Index of backup nexthop */ |
474aebd9 MS |
1056 | if (CHECK_FLAG(nh_flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP)) { |
1057 | /* Validate backup count */ | |
1058 | if (api_nh->backup_num > NEXTHOP_MAX_BACKUPS) { | |
1059 | ret = -1; | |
1060 | goto done; | |
1061 | } | |
1062 | ||
1063 | stream_putc(s, api_nh->backup_num); | |
1064 | for (i = 0; i < api_nh->backup_num; i++) | |
1065 | stream_putc(s, api_nh->backup_idx[i]); | |
1066 | } | |
018c6488 | 1067 | |
c60c1ade | 1068 | if (CHECK_FLAG(nh_flags, ZAPI_NEXTHOP_FLAG_SEG6LOCAL)) { |
cb7775a9 HS |
1069 | stream_putl(s, api_nh->seg6local_action); |
1070 | stream_write(s, &api_nh->seg6local_ctx, | |
1071 | sizeof(struct seg6local_context)); | |
1072 | } | |
1073 | ||
c60c1ade | 1074 | if (CHECK_FLAG(nh_flags, ZAPI_NEXTHOP_FLAG_SEG6)) |
2aa01034 HS |
1075 | stream_write(s, &api_nh->seg6_segs, |
1076 | sizeof(struct in6_addr)); | |
1077 | ||
68a02e06 MS |
1078 | done: |
1079 | return ret; | |
1080 | } | |
1081 | ||
ac6a9479 HS |
1082 | int zapi_srv6_locator_chunk_encode(struct stream *s, |
1083 | const struct srv6_locator_chunk *c) | |
1084 | { | |
ac6a9479 HS |
1085 | stream_putw(s, strlen(c->locator_name)); |
1086 | stream_put(s, c->locator_name, strlen(c->locator_name)); | |
1087 | stream_putw(s, c->prefix.prefixlen); | |
1088 | stream_put(s, &c->prefix.prefix, sizeof(c->prefix.prefix)); | |
1089 | stream_putc(s, c->block_bits_length); | |
1090 | stream_putc(s, c->node_bits_length); | |
1091 | stream_putc(s, c->function_bits_length); | |
1092 | stream_putc(s, c->argument_bits_length); | |
d537287a | 1093 | stream_putc(s, c->flags); |
ac6a9479 HS |
1094 | return 0; |
1095 | } | |
1096 | ||
1097 | int zapi_srv6_locator_chunk_decode(struct stream *s, | |
1098 | struct srv6_locator_chunk *c) | |
1099 | { | |
1100 | uint16_t len = 0; | |
1101 | ||
05485926 HS |
1102 | c->prefix.family = AF_INET6; |
1103 | ||
ac6a9479 HS |
1104 | STREAM_GETW(s, len); |
1105 | if (len > SRV6_LOCNAME_SIZE) | |
1106 | goto stream_failure; | |
1107 | ||
1108 | STREAM_GET(c->locator_name, s, len); | |
1109 | STREAM_GETW(s, c->prefix.prefixlen); | |
1110 | STREAM_GET(&c->prefix.prefix, s, sizeof(c->prefix.prefix)); | |
1111 | STREAM_GETC(s, c->block_bits_length); | |
1112 | STREAM_GETC(s, c->node_bits_length); | |
1113 | STREAM_GETC(s, c->function_bits_length); | |
1114 | STREAM_GETC(s, c->argument_bits_length); | |
d537287a | 1115 | STREAM_GETC(s, c->flags); |
ac6a9479 HS |
1116 | return 0; |
1117 | ||
1118 | stream_failure: | |
1119 | return -1; | |
1120 | } | |
1121 | ||
15588d7b HS |
1122 | int zapi_srv6_locator_encode(struct stream *s, const struct srv6_locator *l) |
1123 | { | |
1124 | stream_putw(s, strlen(l->name)); | |
1125 | stream_put(s, l->name, strlen(l->name)); | |
1126 | stream_putw(s, l->prefix.prefixlen); | |
1127 | stream_put(s, &l->prefix.prefix, sizeof(l->prefix.prefix)); | |
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | int zapi_srv6_locator_decode(struct stream *s, struct srv6_locator *l) | |
1132 | { | |
1133 | uint16_t len = 0; | |
1134 | ||
1135 | STREAM_GETW(s, len); | |
1136 | if (len > SRV6_LOCNAME_SIZE) | |
1137 | goto stream_failure; | |
1138 | ||
1139 | STREAM_GET(l->name, s, len); | |
1140 | STREAM_GETW(s, l->prefix.prefixlen); | |
1141 | STREAM_GET(&l->prefix.prefix, s, sizeof(l->prefix.prefix)); | |
1142 | l->prefix.family = AF_INET6; | |
1143 | return 0; | |
1144 | ||
1145 | stream_failure: | |
1146 | return -1; | |
1147 | } | |
1148 | ||
5898ce6f | 1149 | static int zapi_nhg_encode(struct stream *s, int cmd, struct zapi_nhg *api_nhg) |
2f35a820 | 1150 | { |
21735352 SW |
1151 | int i; |
1152 | ||
c6ce9334 SW |
1153 | if (cmd != ZEBRA_NHG_DEL && cmd != ZEBRA_NHG_ADD) { |
1154 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1d5453d6 | 1155 | "%s: Specified zapi NHG command (%d) doesn't exist", |
c6ce9334 SW |
1156 | __func__, cmd); |
1157 | return -1; | |
1158 | } | |
2f35a820 | 1159 | |
5898ce6f MS |
1160 | if (api_nhg->nexthop_num >= MULTIPATH_NUM || |
1161 | api_nhg->backup_nexthop_num >= MULTIPATH_NUM) { | |
1162 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1d5453d6 | 1163 | "%s: zapi NHG encode with invalid input", __func__); |
5898ce6f MS |
1164 | return -1; |
1165 | } | |
1166 | ||
2f35a820 | 1167 | stream_reset(s); |
c6ce9334 | 1168 | zclient_create_header(s, cmd, VRF_DEFAULT); |
2f35a820 | 1169 | |
21735352 | 1170 | stream_putw(s, api_nhg->proto); |
c6ce9334 | 1171 | stream_putl(s, api_nhg->id); |
2f35a820 | 1172 | |
ca2b3467 DS |
1173 | stream_putw(s, api_nhg->resilience.buckets); |
1174 | stream_putl(s, api_nhg->resilience.idle_timer); | |
1175 | stream_putl(s, api_nhg->resilience.unbalanced_timer); | |
1176 | ||
c6ce9334 | 1177 | if (cmd == ZEBRA_NHG_ADD) { |
21735352 | 1178 | /* Nexthops */ |
c6ce9334 SW |
1179 | zapi_nexthop_group_sort(api_nhg->nexthops, |
1180 | api_nhg->nexthop_num); | |
2f35a820 | 1181 | |
c6ce9334 | 1182 | stream_putw(s, api_nhg->nexthop_num); |
2f35a820 | 1183 | |
21735352 | 1184 | for (i = 0; i < api_nhg->nexthop_num; i++) |
c6ce9334 | 1185 | zapi_nexthop_encode(s, &api_nhg->nexthops[i], 0, 0); |
21735352 SW |
1186 | |
1187 | /* Backup nexthops */ | |
21735352 SW |
1188 | stream_putw(s, api_nhg->backup_nexthop_num); |
1189 | ||
1190 | for (i = 0; i < api_nhg->backup_nexthop_num; i++) | |
1191 | zapi_nexthop_encode(s, &api_nhg->backup_nexthops[i], 0, | |
1192 | 0); | |
2f35a820 DS |
1193 | } |
1194 | ||
1195 | stream_putw_at(s, 0, stream_get_endp(s)); | |
c6ce9334 SW |
1196 | |
1197 | return 0; | |
2f35a820 DS |
1198 | } |
1199 | ||
7cfdb485 DS |
1200 | enum zclient_send_status zclient_nhg_send(struct zclient *zclient, int cmd, |
1201 | struct zapi_nhg *api_nhg) | |
2f35a820 | 1202 | { |
21735352 SW |
1203 | api_nhg->proto = zclient->redist_default; |
1204 | ||
1205 | if (zapi_nhg_encode(zclient->obuf, cmd, api_nhg)) | |
c6ce9334 | 1206 | return -1; |
2f35a820 | 1207 | |
c6ce9334 | 1208 | return zclient_send_message(zclient); |
2f35a820 DS |
1209 | } |
1210 | ||
d7c0a89a | 1211 | int zapi_route_encode(uint8_t cmd, struct stream *s, struct zapi_route *api) |
0e51b4a3 RW |
1212 | { |
1213 | struct zapi_nexthop *api_nh; | |
d62a17ae | 1214 | int i; |
1215 | int psize; | |
d62a17ae | 1216 | |
d62a17ae | 1217 | stream_reset(s); |
d62a17ae | 1218 | zclient_create_header(s, cmd, api->vrf_id); |
1219 | ||
e4081c0e RW |
1220 | if (api->type >= ZEBRA_ROUTE_MAX) { |
1221 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1d5453d6 | 1222 | "%s: Specified route type (%u) is not a legal value", |
15569c58 | 1223 | __func__, api->type); |
e4081c0e RW |
1224 | return -1; |
1225 | } | |
d62a17ae | 1226 | stream_putc(s, api->type); |
e4081c0e | 1227 | |
d62a17ae | 1228 | stream_putw(s, api->instance); |
1229 | stream_putl(s, api->flags); | |
31f937fb | 1230 | stream_putl(s, api->message); |
e4081c0e RW |
1231 | |
1232 | if (api->safi < SAFI_UNICAST || api->safi >= SAFI_MAX) { | |
1233 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1d5453d6 | 1234 | "%s: Specified route SAFI (%u) is not a legal value", |
15569c58 | 1235 | __func__, api->safi); |
e4081c0e RW |
1236 | return -1; |
1237 | } | |
832d0f56 | 1238 | stream_putc(s, api->safi); |
d62a17ae | 1239 | |
1240 | /* Put prefix information. */ | |
0e51b4a3 | 1241 | stream_putc(s, api->prefix.family); |
bb1b9c47 RW |
1242 | psize = PSIZE(api->prefix.prefixlen); |
1243 | stream_putc(s, api->prefix.prefixlen); | |
c4efd0f4 | 1244 | stream_write(s, &api->prefix.u.prefix, psize); |
d62a17ae | 1245 | |
1246 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { | |
bb1b9c47 RW |
1247 | psize = PSIZE(api->src_prefix.prefixlen); |
1248 | stream_putc(s, api->src_prefix.prefixlen); | |
d7c0a89a | 1249 | stream_write(s, (uint8_t *)&api->src_prefix.prefix, psize); |
d62a17ae | 1250 | } |
1251 | ||
27141ea9 DS |
1252 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NHG)) |
1253 | stream_putl(s, api->nhgid); | |
1254 | ||
0e51b4a3 | 1255 | /* Nexthops. */ |
d62a17ae | 1256 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { |
bb1b9c47 RW |
1257 | /* limit the number of nexthops if necessary */ |
1258 | if (api->nexthop_num > MULTIPATH_NUM) { | |
ade6974d | 1259 | flog_err( |
450971aa | 1260 | EC_LIB_ZAPI_ENCODE, |
2dbe669b DA |
1261 | "%s: prefix %pFX: can't encode %u nexthops (maximum is %u)", |
1262 | __func__, &api->prefix, api->nexthop_num, | |
1263 | MULTIPATH_NUM); | |
a74e593b | 1264 | return -1; |
bb1b9c47 RW |
1265 | } |
1266 | ||
018c6488 MS |
1267 | /* We canonicalize the nexthops by sorting them; this allows |
1268 | * zebra to resolve the list of nexthops to a nexthop-group | |
1269 | * more efficiently. | |
1270 | */ | |
3c6e0bd4 SW |
1271 | zapi_nexthop_group_sort(api->nexthops, api->nexthop_num); |
1272 | ||
b5f79651 | 1273 | stream_putw(s, api->nexthop_num); |
d62a17ae | 1274 | |
1275 | for (i = 0; i < api->nexthop_num; i++) { | |
bb1b9c47 RW |
1276 | api_nh = &api->nexthops[i]; |
1277 | ||
52dd3aa4 | 1278 | /* MPLS labels for BGP-LU or Segment Routing */ |
68a02e06 | 1279 | if (api_nh->label_num > MPLS_MAX_LABELS) { |
2dbe669b DA |
1280 | flog_err( |
1281 | EC_LIB_ZAPI_ENCODE, | |
1282 | "%s: prefix %pFX: can't encode %u labels (maximum is %u)", | |
1283 | __func__, &api->prefix, | |
1284 | api_nh->label_num, MPLS_MAX_LABELS); | |
68a02e06 | 1285 | return -1; |
52dd3aa4 | 1286 | } |
a317a9b9 | 1287 | |
31f937fb SM |
1288 | if (zapi_nexthop_encode(s, api_nh, api->flags, |
1289 | api->message) | |
1290 | != 0) | |
68a02e06 | 1291 | return -1; |
d62a17ae | 1292 | } |
1293 | } | |
1294 | ||
018c6488 MS |
1295 | /* Backup nexthops */ |
1296 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_BACKUP_NEXTHOPS)) { | |
1297 | /* limit the number of nexthops if necessary */ | |
1298 | if (api->backup_nexthop_num > MULTIPATH_NUM) { | |
018c6488 MS |
1299 | flog_err( |
1300 | EC_LIB_ZAPI_ENCODE, | |
2dbe669b DA |
1301 | "%s: prefix %pFX: can't encode %u backup nexthops (maximum is %u)", |
1302 | __func__, &api->prefix, api->backup_nexthop_num, | |
018c6488 MS |
1303 | MULTIPATH_NUM); |
1304 | return -1; | |
1305 | } | |
1306 | ||
1307 | /* Note that we do not sort the list of backup nexthops - | |
1308 | * this list is treated as an array and indexed by each | |
1309 | * primary nexthop that is associated with a backup. | |
1310 | */ | |
1311 | ||
1312 | stream_putw(s, api->backup_nexthop_num); | |
1313 | ||
1314 | for (i = 0; i < api->backup_nexthop_num; i++) { | |
1315 | api_nh = &api->backup_nexthops[i]; | |
1316 | ||
1317 | /* MPLS labels for BGP-LU or Segment Routing */ | |
1318 | if (api_nh->label_num > MPLS_MAX_LABELS) { | |
2dbe669b DA |
1319 | flog_err( |
1320 | EC_LIB_ZAPI_ENCODE, | |
1321 | "%s: prefix %pFX: backup: can't encode %u labels (maximum is %u)", | |
1322 | __func__, &api->prefix, | |
1323 | api_nh->label_num, MPLS_MAX_LABELS); | |
018c6488 MS |
1324 | return -1; |
1325 | } | |
1326 | ||
31f937fb SM |
1327 | if (zapi_nexthop_encode(s, api_nh, api->flags, |
1328 | api->message) | |
1329 | != 0) | |
018c6488 MS |
1330 | return -1; |
1331 | } | |
1332 | } | |
1333 | ||
0e51b4a3 | 1334 | /* Attributes. */ |
d62a17ae | 1335 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) |
1336 | stream_putc(s, api->distance); | |
1337 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) | |
1338 | stream_putl(s, api->metric); | |
1339 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) | |
1340 | stream_putl(s, api->tag); | |
1341 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) | |
1342 | stream_putl(s, api->mtu); | |
ba1849ef DS |
1343 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1344 | stream_putl(s, api->tableid); | |
d62a17ae | 1345 | |
71c4870b | 1346 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_OPAQUE)) { |
1ae0e1b3 DS |
1347 | if (api->opaque.length > ZAPI_MESSAGE_OPAQUE_LENGTH) { |
1348 | flog_err( | |
1349 | EC_LIB_ZAPI_ENCODE, | |
1350 | "%s: opaque length %u is greater than allowed value", | |
1351 | __func__, api->opaque.length); | |
1352 | return -1; | |
1353 | } | |
71c4870b DS |
1354 | |
1355 | stream_putw(s, api->opaque.length); | |
1356 | stream_write(s, api->opaque.data, api->opaque.length); | |
1357 | } | |
d62a17ae | 1358 | /* Put length at the first point of the stream. */ |
1359 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1360 | ||
0e51b4a3 RW |
1361 | return 0; |
1362 | } | |
1363 | ||
68a02e06 MS |
1364 | /* |
1365 | * Decode a single zapi nexthop object | |
1366 | */ | |
2f35a820 DS |
1367 | int zapi_nexthop_decode(struct stream *s, struct zapi_nexthop *api_nh, |
1368 | uint32_t api_flags, uint32_t api_message) | |
68a02e06 | 1369 | { |
474aebd9 | 1370 | int i, ret = -1; |
68a02e06 MS |
1371 | |
1372 | STREAM_GETL(s, api_nh->vrf_id); | |
1373 | STREAM_GETC(s, api_nh->type); | |
1374 | ||
1375 | /* Note that we're only using a single octet of flags */ | |
1376 | STREAM_GETC(s, api_nh->flags); | |
1377 | ||
1378 | switch (api_nh->type) { | |
1379 | case NEXTHOP_TYPE_BLACKHOLE: | |
1380 | STREAM_GETC(s, api_nh->bh_type); | |
1381 | break; | |
1382 | case NEXTHOP_TYPE_IPV4: | |
68a02e06 MS |
1383 | case NEXTHOP_TYPE_IPV4_IFINDEX: |
1384 | STREAM_GET(&api_nh->gate.ipv4.s_addr, s, | |
1385 | IPV4_MAX_BYTELEN); | |
1386 | STREAM_GETL(s, api_nh->ifindex); | |
1387 | break; | |
1388 | case NEXTHOP_TYPE_IFINDEX: | |
1389 | STREAM_GETL(s, api_nh->ifindex); | |
1390 | break; | |
1391 | case NEXTHOP_TYPE_IPV6: | |
68a02e06 MS |
1392 | case NEXTHOP_TYPE_IPV6_IFINDEX: |
1393 | STREAM_GET(&api_nh->gate.ipv6, s, 16); | |
1394 | STREAM_GETL(s, api_nh->ifindex); | |
1395 | break; | |
1396 | } | |
1397 | ||
1398 | /* MPLS labels for BGP-LU or Segment Routing */ | |
1399 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL)) { | |
1400 | STREAM_GETC(s, api_nh->label_num); | |
d5ea1185 | 1401 | STREAM_GETC(s, api_nh->label_type); |
68a02e06 MS |
1402 | if (api_nh->label_num > MPLS_MAX_LABELS) { |
1403 | flog_err( | |
1404 | EC_LIB_ZAPI_ENCODE, | |
1405 | "%s: invalid number of MPLS labels (%u)", | |
1406 | __func__, api_nh->label_num); | |
1407 | return -1; | |
1408 | } | |
1409 | ||
1410 | STREAM_GET(&api_nh->labels[0], s, | |
1411 | api_nh->label_num * sizeof(mpls_label_t)); | |
1412 | } | |
1413 | ||
bd054c1a DS |
1414 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_WEIGHT)) |
1415 | STREAM_GETL(s, api_nh->weight); | |
1416 | ||
68a02e06 | 1417 | /* Router MAC for EVPN routes. */ |
5609e70f | 1418 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) |
68a02e06 MS |
1419 | STREAM_GET(&(api_nh->rmac), s, |
1420 | sizeof(struct ethaddr)); | |
1421 | ||
31f937fb SM |
1422 | /* Color for Segment Routing TE. */ |
1423 | if (CHECK_FLAG(api_message, ZAPI_MESSAGE_SRTE)) | |
1424 | STREAM_GETL(s, api_nh->srte_color); | |
1425 | ||
018c6488 | 1426 | /* Backup nexthop index */ |
474aebd9 MS |
1427 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP)) { |
1428 | STREAM_GETC(s, api_nh->backup_num); | |
1429 | ||
1430 | if (api_nh->backup_num > NEXTHOP_MAX_BACKUPS) | |
1431 | return -1; | |
1432 | ||
1433 | for (i = 0; i < api_nh->backup_num; i++) | |
1434 | STREAM_GETC(s, api_nh->backup_idx[i]); | |
1435 | } | |
018c6488 | 1436 | |
c60c1ade | 1437 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6LOCAL)) { |
cb7775a9 HS |
1438 | STREAM_GETL(s, api_nh->seg6local_action); |
1439 | STREAM_GET(&api_nh->seg6local_ctx, s, | |
1440 | sizeof(struct seg6local_context)); | |
1441 | } | |
1442 | ||
c60c1ade | 1443 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6)) |
2aa01034 HS |
1444 | STREAM_GET(&api_nh->seg6_segs, s, |
1445 | sizeof(struct in6_addr)); | |
1446 | ||
68a02e06 MS |
1447 | /* Success */ |
1448 | ret = 0; | |
1449 | ||
1450 | stream_failure: | |
1451 | ||
1452 | return ret; | |
1453 | } | |
1454 | ||
0e51b4a3 RW |
1455 | int zapi_route_decode(struct stream *s, struct zapi_route *api) |
1456 | { | |
1457 | struct zapi_nexthop *api_nh; | |
1458 | int i; | |
1459 | ||
1460 | memset(api, 0, sizeof(*api)); | |
1461 | ||
1462 | /* Type, flags, message. */ | |
ec93aa12 | 1463 | STREAM_GETC(s, api->type); |
e4081c0e | 1464 | if (api->type >= ZEBRA_ROUTE_MAX) { |
450971aa | 1465 | flog_err(EC_LIB_ZAPI_ENCODE, |
1d5453d6 | 1466 | "%s: Specified route type: %d is not a legal value", |
15569c58 | 1467 | __func__, api->type); |
ec93aa12 DS |
1468 | return -1; |
1469 | } | |
1470 | ||
1471 | STREAM_GETW(s, api->instance); | |
1472 | STREAM_GETL(s, api->flags); | |
31f937fb | 1473 | STREAM_GETL(s, api->message); |
832d0f56 | 1474 | STREAM_GETC(s, api->safi); |
e4081c0e RW |
1475 | if (api->safi < SAFI_UNICAST || api->safi >= SAFI_MAX) { |
1476 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1d5453d6 | 1477 | "%s: Specified route SAFI (%u) is not a legal value", |
15569c58 | 1478 | __func__, api->safi); |
e4081c0e RW |
1479 | return -1; |
1480 | } | |
0e51b4a3 RW |
1481 | |
1482 | /* Prefix. */ | |
ec93aa12 DS |
1483 | STREAM_GETC(s, api->prefix.family); |
1484 | STREAM_GETC(s, api->prefix.prefixlen); | |
0e51b4a3 RW |
1485 | switch (api->prefix.family) { |
1486 | case AF_INET: | |
936fbaef | 1487 | if (api->prefix.prefixlen > IPV4_MAX_BITLEN) { |
ade6974d | 1488 | flog_err( |
450971aa | 1489 | EC_LIB_ZAPI_ENCODE, |
ade6974d | 1490 | "%s: V4 prefixlen is %d which should not be more than 32", |
15569c58 | 1491 | __func__, api->prefix.prefixlen); |
ec93aa12 DS |
1492 | return -1; |
1493 | } | |
0e51b4a3 RW |
1494 | break; |
1495 | case AF_INET6: | |
f4d81e55 | 1496 | if (api->prefix.prefixlen > IPV6_MAX_BITLEN) { |
ade6974d | 1497 | flog_err( |
450971aa | 1498 | EC_LIB_ZAPI_ENCODE, |
ade6974d | 1499 | "%s: v6 prefixlen is %d which should not be more than 128", |
15569c58 | 1500 | __func__, api->prefix.prefixlen); |
ec93aa12 DS |
1501 | return -1; |
1502 | } | |
0e51b4a3 | 1503 | break; |
ec93aa12 | 1504 | default: |
450971aa | 1505 | flog_err(EC_LIB_ZAPI_ENCODE, |
15569c58 DA |
1506 | "%s: Specified family %d is not v4 or v6", __func__, |
1507 | api->prefix.family); | |
ec93aa12 | 1508 | return -1; |
0e51b4a3 | 1509 | } |
ec93aa12 DS |
1510 | STREAM_GET(&api->prefix.u.prefix, s, PSIZE(api->prefix.prefixlen)); |
1511 | ||
0e51b4a3 RW |
1512 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_SRCPFX)) { |
1513 | api->src_prefix.family = AF_INET6; | |
ec93aa12 | 1514 | STREAM_GETC(s, api->src_prefix.prefixlen); |
f4d81e55 | 1515 | if (api->src_prefix.prefixlen > IPV6_MAX_BITLEN) { |
ade6974d | 1516 | flog_err( |
450971aa | 1517 | EC_LIB_ZAPI_ENCODE, |
ade6974d | 1518 | "%s: SRC Prefix prefixlen received: %d is too large", |
15569c58 | 1519 | __func__, api->src_prefix.prefixlen); |
ec93aa12 DS |
1520 | return -1; |
1521 | } | |
1522 | STREAM_GET(&api->src_prefix.prefix, s, | |
0e51b4a3 RW |
1523 | PSIZE(api->src_prefix.prefixlen)); |
1524 | ||
1525 | if (api->prefix.family != AF_INET6 | |
ec93aa12 | 1526 | || api->src_prefix.prefixlen == 0) { |
ade6974d | 1527 | flog_err( |
450971aa | 1528 | EC_LIB_ZAPI_ENCODE, |
ade6974d | 1529 | "%s: SRC prefix specified in some manner that makes no sense", |
15569c58 | 1530 | __func__); |
ec93aa12 DS |
1531 | return -1; |
1532 | } | |
0e51b4a3 RW |
1533 | } |
1534 | ||
27141ea9 DS |
1535 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NHG)) |
1536 | STREAM_GETL(s, api->nhgid); | |
1537 | ||
0e51b4a3 RW |
1538 | /* Nexthops. */ |
1539 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP)) { | |
ec93aa12 | 1540 | STREAM_GETW(s, api->nexthop_num); |
0e51b4a3 | 1541 | if (api->nexthop_num > MULTIPATH_NUM) { |
450971aa | 1542 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
1543 | "%s: invalid number of nexthops (%u)", |
1544 | __func__, api->nexthop_num); | |
0e51b4a3 RW |
1545 | return -1; |
1546 | } | |
1547 | ||
1548 | for (i = 0; i < api->nexthop_num; i++) { | |
1549 | api_nh = &api->nexthops[i]; | |
1550 | ||
31f937fb SM |
1551 | if (zapi_nexthop_decode(s, api_nh, api->flags, |
1552 | api->message) | |
1553 | != 0) | |
68a02e06 | 1554 | return -1; |
0e51b4a3 RW |
1555 | } |
1556 | } | |
1557 | ||
018c6488 MS |
1558 | /* Backup nexthops. */ |
1559 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_BACKUP_NEXTHOPS)) { | |
1560 | STREAM_GETW(s, api->backup_nexthop_num); | |
1561 | if (api->backup_nexthop_num > MULTIPATH_NUM) { | |
1562 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1563 | "%s: invalid number of backup nexthops (%u)", | |
1564 | __func__, api->backup_nexthop_num); | |
1565 | return -1; | |
1566 | } | |
1567 | ||
1568 | for (i = 0; i < api->backup_nexthop_num; i++) { | |
1569 | api_nh = &api->backup_nexthops[i]; | |
1570 | ||
31f937fb SM |
1571 | if (zapi_nexthop_decode(s, api_nh, api->flags, |
1572 | api->message) | |
1573 | != 0) | |
018c6488 MS |
1574 | return -1; |
1575 | } | |
1576 | } | |
1577 | ||
0e51b4a3 RW |
1578 | /* Attributes. */ |
1579 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_DISTANCE)) | |
ec93aa12 | 1580 | STREAM_GETC(s, api->distance); |
0e51b4a3 | 1581 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_METRIC)) |
ec93aa12 | 1582 | STREAM_GETL(s, api->metric); |
0e51b4a3 | 1583 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TAG)) |
ec93aa12 | 1584 | STREAM_GETL(s, api->tag); |
0e51b4a3 | 1585 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_MTU)) |
ec93aa12 | 1586 | STREAM_GETL(s, api->mtu); |
ba1849ef DS |
1587 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_TABLEID)) |
1588 | STREAM_GETL(s, api->tableid); | |
0e51b4a3 | 1589 | |
71c4870b DS |
1590 | if (CHECK_FLAG(api->message, ZAPI_MESSAGE_OPAQUE)) { |
1591 | STREAM_GETW(s, api->opaque.length); | |
1ae0e1b3 DS |
1592 | if (api->opaque.length > ZAPI_MESSAGE_OPAQUE_LENGTH) { |
1593 | flog_err( | |
1594 | EC_LIB_ZAPI_ENCODE, | |
1595 | "%s: opaque length %u is greater than allowed value", | |
1596 | __func__, api->opaque.length); | |
1597 | return -1; | |
1598 | } | |
71c4870b DS |
1599 | |
1600 | STREAM_GET(api->opaque.data, s, api->opaque.length); | |
1601 | } | |
1602 | ||
0e51b4a3 | 1603 | return 0; |
6a2b0d9a RW |
1604 | stream_failure: |
1605 | return -1; | |
657cde12 DS |
1606 | } |
1607 | ||
0313523d FR |
1608 | static void zapi_encode_prefix(struct stream *s, struct prefix *p, |
1609 | uint8_t family) | |
0031a6bb PG |
1610 | { |
1611 | struct prefix any; | |
1612 | ||
1613 | if (!p) { | |
1614 | memset(&any, 0, sizeof(any)); | |
1615 | any.family = family; | |
1616 | p = &any; | |
1617 | } | |
1618 | ||
1619 | stream_putc(s, p->family); | |
1620 | stream_putc(s, p->prefixlen); | |
1621 | stream_put(s, &p->u.prefix, prefix_blen(p)); | |
1622 | } | |
1623 | ||
0313523d | 1624 | int zapi_pbr_rule_encode(uint8_t cmd, struct stream *s, struct pbr_rule *zrule) |
0031a6bb PG |
1625 | { |
1626 | stream_reset(s); | |
1627 | zclient_create_header(s, cmd, zrule->vrf_id); | |
1628 | ||
1629 | /* | |
1630 | * We are sending one item at a time at the moment | |
1631 | */ | |
1632 | stream_putl(s, 1); | |
1633 | ||
1634 | stream_putl(s, zrule->seq); | |
1635 | stream_putl(s, zrule->priority); | |
1636 | stream_putl(s, zrule->unique); | |
1637 | ||
1638 | zapi_encode_prefix(s, &(zrule->filter.src_ip), | |
1639 | zrule->filter.src_ip.family); | |
0313523d | 1640 | stream_putw(s, zrule->filter.src_port); /* src port */ |
0031a6bb PG |
1641 | zapi_encode_prefix(s, &(zrule->filter.dst_ip), |
1642 | zrule->filter.src_ip.family); | |
0313523d FR |
1643 | stream_putw(s, zrule->filter.dst_port); /* dst port */ |
1644 | stream_putw(s, zrule->filter.fwmark); /* fwmark */ | |
0031a6bb PG |
1645 | |
1646 | stream_putl(s, zrule->action.table); | |
58a1d249 | 1647 | stream_put(s, zrule->ifname, INTERFACE_NAMSIZ); |
0031a6bb PG |
1648 | |
1649 | /* Put length at the first point of the stream. */ | |
1650 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1651 | ||
1652 | return 0; | |
1653 | } | |
1654 | ||
dfacea4a SY |
1655 | int zapi_tc_qdisc_encode(uint8_t cmd, struct stream *s, struct tc_qdisc *qdisc) |
1656 | { | |
1657 | stream_reset(s); | |
1658 | zclient_create_header(s, cmd, VRF_DEFAULT); | |
1659 | ||
1660 | ||
1661 | stream_putl(s, 1); | |
1662 | ||
1663 | stream_putl(s, qdisc->ifindex); | |
1664 | stream_putl(s, qdisc->kind); | |
1665 | ||
1666 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1667 | ||
1668 | return 0; | |
1669 | } | |
1670 | ||
1671 | int zapi_tc_class_encode(uint8_t cmd, struct stream *s, struct tc_class *class) | |
1672 | { | |
1673 | stream_reset(s); | |
1674 | zclient_create_header(s, cmd, VRF_DEFAULT); | |
1675 | ||
1676 | stream_putl(s, 1); | |
1677 | ||
1678 | stream_putl(s, class->ifindex); | |
1679 | stream_putl(s, class->handle); | |
1680 | stream_putl(s, class->kind); | |
1681 | ||
1682 | switch (class->kind) { | |
1683 | case TC_QDISC_HTB: | |
1684 | stream_putq(s, class->u.htb.rate); | |
1685 | stream_putq(s, class->u.htb.ceil); | |
1686 | break; | |
bde30e78 DS |
1687 | case TC_QDISC_UNSPEC: |
1688 | case TC_QDISC_NOQUEUE: | |
dfacea4a SY |
1689 | /* not implemented */ |
1690 | break; | |
1691 | } | |
1692 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1693 | ||
1694 | return 0; | |
1695 | } | |
1696 | ||
1697 | int zapi_tc_filter_encode(uint8_t cmd, struct stream *s, | |
1698 | struct tc_filter *filter) | |
1699 | { | |
1700 | stream_reset(s); | |
1701 | zclient_create_header(s, cmd, VRF_DEFAULT); | |
1702 | ||
1703 | stream_putl(s, 1); | |
1704 | ||
1705 | stream_putl(s, filter->ifindex); | |
1706 | stream_putl(s, filter->handle); | |
1707 | stream_putl(s, filter->priority); | |
1708 | stream_putl(s, filter->protocol); | |
1709 | stream_putl(s, filter->kind); | |
1710 | ||
1711 | switch (filter->kind) { | |
1712 | case TC_FILTER_FLOWER: | |
1713 | stream_putl(s, filter->u.flower.filter_bm); | |
1714 | if (filter->u.flower.filter_bm & TC_FLOWER_IP_PROTOCOL) | |
1715 | stream_putc(s, filter->u.flower.ip_proto); | |
1716 | if (filter->u.flower.filter_bm & TC_FLOWER_SRC_IP) | |
1717 | zapi_encode_prefix(s, &filter->u.flower.src_ip, | |
1718 | filter->u.flower.src_ip.family); | |
1719 | if (filter->u.flower.filter_bm & TC_FLOWER_SRC_PORT) { | |
1720 | stream_putw(s, filter->u.flower.src_port_min); | |
1721 | stream_putw(s, filter->u.flower.src_port_max); | |
1722 | } | |
1723 | if (filter->u.flower.filter_bm & TC_FLOWER_DST_IP) | |
1724 | zapi_encode_prefix(s, &filter->u.flower.dst_ip, | |
1725 | filter->u.flower.dst_ip.family); | |
1726 | if (filter->u.flower.filter_bm & TC_FLOWER_DST_PORT) { | |
1727 | stream_putw(s, filter->u.flower.dst_port_min); | |
1728 | stream_putw(s, filter->u.flower.dst_port_max); | |
1729 | } | |
1730 | if (filter->u.flower.filter_bm & TC_FLOWER_DSFIELD) { | |
1731 | stream_putc(s, filter->u.flower.dsfield); | |
1732 | stream_putc(s, filter->u.flower.dsfield_mask); | |
1733 | } | |
1734 | stream_putl(s, filter->u.flower.classid); | |
1735 | break; | |
bde30e78 DS |
1736 | case TC_FILTER_UNSPEC: |
1737 | case TC_FILTER_BPF: | |
1738 | case TC_FILTER_FLOW: | |
1739 | case TC_FILTER_U32: | |
dfacea4a SY |
1740 | /* not implemented */ |
1741 | break; | |
1742 | } | |
1743 | ||
1744 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1745 | ||
1746 | return 0; | |
1747 | } | |
1748 | ||
2f35a820 DS |
1749 | bool zapi_nhg_notify_decode(struct stream *s, uint32_t *id, |
1750 | enum zapi_nhg_notify_owner *note) | |
1751 | { | |
2c7819b9 | 1752 | uint32_t read_id; |
2f35a820 | 1753 | |
2f35a820 | 1754 | STREAM_GET(note, s, sizeof(*note)); |
2c7819b9 | 1755 | STREAM_GETL(s, read_id); |
2f35a820 DS |
1756 | |
1757 | *id = read_id; | |
1758 | ||
1759 | return true; | |
1760 | ||
1761 | stream_failure: | |
1762 | return false; | |
1763 | } | |
1764 | ||
7ea7b86e | 1765 | bool zapi_route_notify_decode(struct stream *s, struct prefix *p, |
28610f7e | 1766 | uint32_t *tableid, |
77b38a4a S |
1767 | enum zapi_route_notify_owner *note, |
1768 | afi_t *afi, safi_t *safi) | |
7ea7b86e | 1769 | { |
7a1eb44b | 1770 | uint32_t t; |
77b38a4a S |
1771 | afi_t afi_val; |
1772 | safi_t safi_val; | |
7a1eb44b | 1773 | |
7ea7b86e DS |
1774 | STREAM_GET(note, s, sizeof(*note)); |
1775 | ||
1776 | STREAM_GETC(s, p->family); | |
1777 | STREAM_GETC(s, p->prefixlen); | |
996c9314 | 1778 | STREAM_GET(&p->u.prefix, s, prefix_blen(p)); |
7a1eb44b | 1779 | STREAM_GETL(s, t); |
77b38a4a S |
1780 | STREAM_GETC(s, afi_val); |
1781 | STREAM_GETC(s, safi_val); | |
7a1eb44b DS |
1782 | |
1783 | *tableid = t; | |
7ea7b86e | 1784 | |
77b38a4a S |
1785 | if (afi) |
1786 | *afi = afi_val; | |
1787 | if (safi) | |
1788 | *safi = safi_val; | |
1789 | ||
7ea7b86e DS |
1790 | return true; |
1791 | ||
1792 | stream_failure: | |
1793 | return false; | |
1794 | } | |
1795 | ||
b6c5d343 | 1796 | bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno, |
58a1d249 | 1797 | uint32_t *priority, uint32_t *unique, char *ifname, |
b6c5d343 DS |
1798 | enum zapi_rule_notify_owner *note) |
1799 | { | |
1800 | uint32_t prio, seq, uni; | |
b6c5d343 DS |
1801 | |
1802 | STREAM_GET(note, s, sizeof(*note)); | |
1803 | ||
1804 | STREAM_GETL(s, seq); | |
1805 | STREAM_GETL(s, prio); | |
1806 | STREAM_GETL(s, uni); | |
58a1d249 | 1807 | STREAM_GET(ifname, s, INTERFACE_NAMSIZ); |
b6c5d343 DS |
1808 | |
1809 | if (zclient_debug) | |
58a1d249 | 1810 | zlog_debug("%s: %u %u %u %s", __func__, seq, prio, uni, ifname); |
b6c5d343 DS |
1811 | *seqno = seq; |
1812 | *priority = prio; | |
1813 | *unique = uni; | |
b6c5d343 DS |
1814 | |
1815 | return true; | |
1816 | ||
1817 | stream_failure: | |
1818 | return false; | |
1819 | } | |
1820 | ||
0313523d FR |
1821 | bool zapi_ipset_notify_decode(struct stream *s, uint32_t *unique, |
1822 | enum zapi_ipset_notify_owner *note) | |
425bdd6b PG |
1823 | { |
1824 | uint32_t uni; | |
ef524230 | 1825 | uint16_t notew; |
425bdd6b | 1826 | |
ef524230 | 1827 | STREAM_GETW(s, notew); |
425bdd6b PG |
1828 | |
1829 | STREAM_GETL(s, uni); | |
1830 | ||
1831 | if (zclient_debug) | |
15569c58 | 1832 | zlog_debug("%s: %u", __func__, uni); |
425bdd6b | 1833 | *unique = uni; |
ef524230 | 1834 | *note = (enum zapi_ipset_notify_owner)notew; |
425bdd6b PG |
1835 | return true; |
1836 | ||
1837 | stream_failure: | |
1838 | return false; | |
1839 | } | |
1840 | ||
0313523d FR |
1841 | bool zapi_ipset_entry_notify_decode(struct stream *s, uint32_t *unique, |
1842 | char *ipset_name, | |
1843 | enum zapi_ipset_entry_notify_owner *note) | |
425bdd6b PG |
1844 | { |
1845 | uint32_t uni; | |
ef524230 | 1846 | uint16_t notew; |
425bdd6b | 1847 | |
ef524230 | 1848 | STREAM_GETW(s, notew); |
425bdd6b PG |
1849 | |
1850 | STREAM_GETL(s, uni); | |
1851 | ||
0313523d | 1852 | STREAM_GET(ipset_name, s, ZEBRA_IPSET_NAME_SIZE); |
425bdd6b PG |
1853 | |
1854 | if (zclient_debug) | |
15569c58 | 1855 | zlog_debug("%s: %u", __func__, uni); |
425bdd6b | 1856 | *unique = uni; |
ef524230 | 1857 | *note = (enum zapi_ipset_entry_notify_owner)notew; |
425bdd6b PG |
1858 | |
1859 | return true; | |
1860 | ||
1861 | stream_failure: | |
1862 | return false; | |
1863 | } | |
1864 | ||
c16a0a62 PG |
1865 | bool zapi_iptable_notify_decode(struct stream *s, |
1866 | uint32_t *unique, | |
1867 | enum zapi_iptable_notify_owner *note) | |
1868 | { | |
1869 | uint32_t uni; | |
ef524230 | 1870 | uint16_t notew; |
c16a0a62 | 1871 | |
ef524230 | 1872 | STREAM_GETW(s, notew); |
c16a0a62 PG |
1873 | |
1874 | STREAM_GETL(s, uni); | |
1875 | ||
1876 | if (zclient_debug) | |
15569c58 | 1877 | zlog_debug("%s: %u", __func__, uni); |
c16a0a62 | 1878 | *unique = uni; |
ef524230 | 1879 | *note = (enum zapi_iptable_notify_owner)notew; |
c16a0a62 PG |
1880 | |
1881 | return true; | |
1882 | ||
1883 | stream_failure: | |
1884 | return false; | |
1885 | } | |
1886 | ||
e4a1ec74 | 1887 | struct nexthop *nexthop_from_zapi_nexthop(const struct zapi_nexthop *znh) |
4a749e2c DS |
1888 | { |
1889 | struct nexthop *n = nexthop_new(); | |
1890 | ||
1891 | n->type = znh->type; | |
4a7371e9 | 1892 | n->vrf_id = znh->vrf_id; |
4a749e2c DS |
1893 | n->ifindex = znh->ifindex; |
1894 | n->gate = znh->gate; | |
31f937fb | 1895 | n->srte_color = znh->srte_color; |
4a749e2c DS |
1896 | |
1897 | /* | |
960035b2 | 1898 | * This function currently handles labels |
4a749e2c | 1899 | */ |
960035b2 PZ |
1900 | if (znh->label_num) { |
1901 | nexthop_add_labels(n, ZEBRA_LSP_NONE, znh->label_num, | |
0313523d | 1902 | znh->labels); |
960035b2 | 1903 | } |
4a749e2c | 1904 | |
0a8881b4 MS |
1905 | if (CHECK_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP)) { |
1906 | SET_FLAG(n->flags, NEXTHOP_FLAG_HAS_BACKUP); | |
474aebd9 MS |
1907 | n->backup_num = znh->backup_num; |
1908 | memcpy(n->backup_idx, znh->backup_idx, n->backup_num); | |
0a8881b4 MS |
1909 | } |
1910 | ||
eab0f8f0 HS |
1911 | if (znh->seg6local_action != ZEBRA_SEG6_LOCAL_ACTION_UNSPEC) |
1912 | nexthop_add_srv6_seg6local(n, znh->seg6local_action, | |
1913 | &znh->seg6local_ctx); | |
cb7775a9 | 1914 | |
eab0f8f0 HS |
1915 | if (!sid_zero(&znh->seg6_segs)) |
1916 | nexthop_add_srv6_seg6(n, &znh->seg6_segs); | |
2aa01034 | 1917 | |
4a749e2c DS |
1918 | return n; |
1919 | } | |
1920 | ||
68a02e06 MS |
1921 | /* |
1922 | * Convert nexthop to zapi nexthop | |
1923 | */ | |
1924 | int zapi_nexthop_from_nexthop(struct zapi_nexthop *znh, | |
1925 | const struct nexthop *nh) | |
1926 | { | |
1927 | int i; | |
1928 | ||
1929 | memset(znh, 0, sizeof(*znh)); | |
1930 | ||
1931 | znh->type = nh->type; | |
1932 | znh->vrf_id = nh->vrf_id; | |
1df3b1dc | 1933 | znh->weight = nh->weight; |
68a02e06 MS |
1934 | znh->ifindex = nh->ifindex; |
1935 | znh->gate = nh->gate; | |
1936 | ||
e90284d7 SW |
1937 | if (CHECK_FLAG(nh->flags, NEXTHOP_FLAG_ONLINK)) |
1938 | SET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); | |
1939 | ||
5609e70f XL |
1940 | if (CHECK_FLAG(nh->flags, NEXTHOP_FLAG_EVPN)) |
1941 | SET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_EVPN); | |
1942 | ||
68a02e06 | 1943 | if (nh->nh_label && (nh->nh_label->num_labels > 0)) { |
018c6488 MS |
1944 | |
1945 | /* Validate */ | |
1946 | if (nh->nh_label->num_labels > MPLS_MAX_LABELS) | |
1947 | return -1; | |
1948 | ||
68a02e06 MS |
1949 | for (i = 0; i < nh->nh_label->num_labels; i++) |
1950 | znh->labels[i] = nh->nh_label->label[i]; | |
1951 | ||
1952 | znh->label_num = i; | |
d5ea1185 | 1953 | znh->label_type = nh->nh_label_type; |
68a02e06 MS |
1954 | SET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
1955 | } | |
1956 | ||
0a8881b4 | 1957 | if (CHECK_FLAG(nh->flags, NEXTHOP_FLAG_HAS_BACKUP)) { |
474aebd9 MS |
1958 | if (nh->backup_num > NEXTHOP_MAX_BACKUPS) |
1959 | return -1; | |
1960 | ||
0a8881b4 | 1961 | SET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP); |
474aebd9 MS |
1962 | znh->backup_num = nh->backup_num; |
1963 | memcpy(znh->backup_idx, nh->backup_idx, znh->backup_num); | |
0a8881b4 MS |
1964 | } |
1965 | ||
eab0f8f0 HS |
1966 | if (nh->nh_srv6) { |
1967 | if (nh->nh_srv6->seg6local_action != | |
1968 | ZEBRA_SEG6_LOCAL_ACTION_UNSPEC) { | |
c60c1ade | 1969 | SET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_SEG6LOCAL); |
eab0f8f0 HS |
1970 | znh->seg6local_action = nh->nh_srv6->seg6local_action; |
1971 | memcpy(&znh->seg6local_ctx, | |
1972 | &nh->nh_srv6->seg6local_ctx, | |
1973 | sizeof(struct seg6local_context)); | |
1974 | } | |
cb7775a9 | 1975 | |
c60c1ade HS |
1976 | if (!sid_zero(&nh->nh_srv6->seg6_segs)) { |
1977 | SET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_SEG6); | |
eab0f8f0 HS |
1978 | memcpy(&znh->seg6_segs, &nh->nh_srv6->seg6_segs, |
1979 | sizeof(struct in6_addr)); | |
c60c1ade | 1980 | } |
eab0f8f0 | 1981 | } |
2aa01034 | 1982 | |
68a02e06 MS |
1983 | return 0; |
1984 | } | |
1985 | ||
0a8881b4 MS |
1986 | /* |
1987 | * Wrapper that converts backup nexthop | |
1988 | */ | |
1989 | int zapi_backup_nexthop_from_nexthop(struct zapi_nexthop *znh, | |
1990 | const struct nexthop *nh) | |
1991 | { | |
1992 | int ret; | |
1993 | ||
1994 | /* Ensure that zapi flags are correct: backups don't have backups */ | |
1995 | ret = zapi_nexthop_from_nexthop(znh, nh); | |
1996 | if (ret == 0) | |
1997 | UNSET_FLAG(znh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP); | |
1998 | ||
1999 | return ret; | |
2000 | } | |
2001 | ||
ae076fc2 MS |
2002 | /* |
2003 | * Format some info about a zapi nexthop, for debug or logging. | |
2004 | */ | |
2005 | const char *zapi_nexthop2str(const struct zapi_nexthop *znh, char *buf, | |
2006 | int bufsize) | |
2007 | { | |
2008 | char tmp[INET6_ADDRSTRLEN]; | |
2009 | ||
2010 | switch (znh->type) { | |
2011 | case NEXTHOP_TYPE_IFINDEX: | |
2012 | snprintf(buf, bufsize, "if %u", znh->ifindex); | |
2013 | break; | |
2014 | case NEXTHOP_TYPE_IPV4: | |
2015 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
2016 | inet_ntop(AF_INET, &znh->gate.ipv4, tmp, sizeof(tmp)); | |
2017 | snprintf(buf, bufsize, "%s if %u", tmp, znh->ifindex); | |
2018 | break; | |
2019 | case NEXTHOP_TYPE_IPV6: | |
2020 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
2021 | inet_ntop(AF_INET6, &znh->gate.ipv6, tmp, sizeof(tmp)); | |
2022 | snprintf(buf, bufsize, "%s if %u", tmp, znh->ifindex); | |
2023 | break; | |
2024 | case NEXTHOP_TYPE_BLACKHOLE: | |
2025 | snprintf(buf, bufsize, "blackhole"); | |
2026 | break; | |
2027 | default: | |
2028 | snprintf(buf, bufsize, "unknown"); | |
2029 | break; | |
2030 | } | |
2031 | ||
2032 | return buf; | |
2033 | } | |
2034 | ||
68a02e06 MS |
2035 | /* |
2036 | * Decode the nexthop-tracking update message | |
2037 | */ | |
06e4e901 DS |
2038 | bool zapi_nexthop_update_decode(struct stream *s, struct prefix *match, |
2039 | struct zapi_route *nhr) | |
4a749e2c DS |
2040 | { |
2041 | uint32_t i; | |
2042 | ||
2043 | memset(nhr, 0, sizeof(*nhr)); | |
2044 | ||
31f937fb | 2045 | STREAM_GETL(s, nhr->message); |
027db469 | 2046 | STREAM_GETW(s, nhr->safi); |
06e4e901 DS |
2047 | STREAM_GETW(s, match->family); |
2048 | STREAM_GETC(s, match->prefixlen); | |
2049 | /* | |
2050 | * What we got told to match against | |
2051 | */ | |
2052 | switch (match->family) { | |
2053 | case AF_INET: | |
2054 | STREAM_GET(&match->u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
2055 | break; | |
2056 | case AF_INET6: | |
2057 | STREAM_GET(&match->u.prefix6, s, IPV6_MAX_BYTELEN); | |
2058 | break; | |
2059 | } | |
2060 | /* | |
2061 | * What we matched against | |
2062 | */ | |
4a749e2c DS |
2063 | STREAM_GETW(s, nhr->prefix.family); |
2064 | STREAM_GETC(s, nhr->prefix.prefixlen); | |
996c9314 | 2065 | switch (nhr->prefix.family) { |
4a749e2c DS |
2066 | case AF_INET: |
2067 | STREAM_GET(&nhr->prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); | |
2068 | break; | |
2069 | case AF_INET6: | |
2070 | STREAM_GET(&nhr->prefix.u.prefix6, s, IPV6_MAX_BYTELEN); | |
2071 | break; | |
2072 | default: | |
2073 | break; | |
2074 | } | |
31f937fb SM |
2075 | if (CHECK_FLAG(nhr->message, ZAPI_MESSAGE_SRTE)) |
2076 | STREAM_GETL(s, nhr->srte_color); | |
4a749e2c | 2077 | |
05dd5aaf DS |
2078 | STREAM_GETC(s, nhr->type); |
2079 | STREAM_GETW(s, nhr->instance); | |
4a749e2c DS |
2080 | STREAM_GETC(s, nhr->distance); |
2081 | STREAM_GETL(s, nhr->metric); | |
2082 | STREAM_GETC(s, nhr->nexthop_num); | |
2083 | ||
996c9314 | 2084 | for (i = 0; i < nhr->nexthop_num; i++) { |
31f937fb | 2085 | if (zapi_nexthop_decode(s, &(nhr->nexthops[i]), 0, 0) != 0) |
2fec17cd | 2086 | return false; |
4a749e2c DS |
2087 | } |
2088 | ||
2089 | return true; | |
2090 | stream_failure: | |
2091 | return false; | |
2092 | } | |
2093 | ||
9ab0b2a3 SW |
2094 | bool zapi_error_decode(struct stream *s, enum zebra_error_types *error) |
2095 | { | |
2096 | memset(error, 0, sizeof(*error)); | |
2097 | ||
2098 | STREAM_GET(error, s, sizeof(*error)); | |
2099 | ||
2100 | if (zclient_debug) | |
2101 | zlog_debug("%s: type: %s", __func__, | |
2102 | zebra_error_type2str(*error)); | |
2103 | ||
2104 | return true; | |
2105 | stream_failure: | |
2106 | return false; | |
2107 | } | |
2108 | ||
d62a17ae | 2109 | /* |
0a589359 | 2110 | * send a ZEBRA_REDISTRIBUTE_ADD or ZEBRA_REDISTRIBUTE_DELETE |
2111 | * for the route type (ZEBRA_ROUTE_KERNEL etc.). The zebra server will | |
d62a17ae | 2112 | * then set/unset redist[type] in the client handle (a struct zserv) for the |
0a589359 | 2113 | * sending client |
2114 | */ | |
7cfdb485 DS |
2115 | enum zclient_send_status |
2116 | zebra_redistribute_send(int command, struct zclient *zclient, afi_t afi, | |
2117 | int type, unsigned short instance, vrf_id_t vrf_id) | |
718e3744 | 2118 | { |
d62a17ae | 2119 | struct stream *s; |
2120 | ||
2121 | s = zclient->obuf; | |
2122 | stream_reset(s); | |
2123 | ||
2124 | zclient_create_header(s, command, vrf_id); | |
2125 | stream_putc(s, afi); | |
2126 | stream_putc(s, type); | |
2127 | stream_putw(s, instance); | |
2128 | ||
2129 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2130 | ||
2131 | return zclient_send_message(zclient); | |
718e3744 | 2132 | } |
2133 | ||
7cfdb485 DS |
2134 | enum zclient_send_status |
2135 | zebra_redistribute_default_send(int command, struct zclient *zclient, afi_t afi, | |
2136 | vrf_id_t vrf_id) | |
49db7a7b RW |
2137 | { |
2138 | struct stream *s; | |
2139 | ||
2140 | s = zclient->obuf; | |
2141 | stream_reset(s); | |
2142 | ||
2143 | zclient_create_header(s, command, vrf_id); | |
2144 | stream_putc(s, afi); | |
2145 | ||
2146 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2147 | ||
2148 | return zclient_send_message(zclient); | |
2149 | } | |
2150 | ||
77b38a4a S |
2151 | /* Send route notify request to zebra */ |
2152 | int zebra_route_notify_send(int command, struct zclient *zclient, bool set) | |
2153 | { | |
2154 | struct stream *s; | |
2155 | ||
2156 | s = zclient->obuf; | |
2157 | stream_reset(s); | |
2158 | ||
2159 | zclient_create_header(s, command, 0); | |
2160 | stream_putc(s, !!set); | |
2161 | ||
2162 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2163 | ||
2164 | return zclient_send_message(zclient); | |
2165 | } | |
2166 | ||
d9178828 | 2167 | /* Get prefix in ZServ format; family should be filled in on prefix */ |
efc7191b | 2168 | static int zclient_stream_get_prefix(struct stream *s, struct prefix *p) |
d9178828 | 2169 | { |
d62a17ae | 2170 | size_t plen = prefix_blen(p); |
d7c0a89a | 2171 | uint8_t c; |
d62a17ae | 2172 | p->prefixlen = 0; |
2173 | ||
2174 | if (plen == 0) | |
efc7191b | 2175 | return -1; |
d62a17ae | 2176 | |
efc7191b | 2177 | STREAM_GET(&p->u.prefix, s, plen); |
ec93aa12 | 2178 | STREAM_GETC(s, c); |
d62a17ae | 2179 | p->prefixlen = MIN(plen * 8, c); |
ec93aa12 | 2180 | |
efc7191b | 2181 | return 0; |
ec93aa12 | 2182 | stream_failure: |
efc7191b | 2183 | return -1; |
d9178828 PJ |
2184 | } |
2185 | ||
18a6dce6 | 2186 | /* Router-id update from zebra daemon. */ |
efc7191b | 2187 | int zebra_router_id_update_read(struct stream *s, struct prefix *rid) |
18a6dce6 | 2188 | { |
d62a17ae | 2189 | /* Fetch interface address. */ |
ec93aa12 | 2190 | STREAM_GETC(s, rid->family); |
d62a17ae | 2191 | |
efc7191b | 2192 | return zclient_stream_get_prefix(s, rid); |
ec93aa12 DS |
2193 | |
2194 | stream_failure: | |
efc7191b | 2195 | return -1; |
18a6dce6 | 2196 | } |
2197 | ||
718e3744 | 2198 | /* Interface addition from zebra daemon. */ |
d62a17ae | 2199 | /* |
0a589359 | 2200 | * The format of the message sent with type ZEBRA_INTERFACE_ADD or |
2201 | * ZEBRA_INTERFACE_DELETE from zebra to the client is: | |
2202 | * 0 1 2 3 | |
2203 | * 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 | 2204 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2205 | * | ifname | | |
2206 | * | | | |
2207 | * | | | |
2208 | * | | | |
2209 | * | | | |
2210 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
2211 | * | ifindex | |
2212 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2213 | * | status | | |
0a589359 | 2214 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 2215 | * | if_flags | |
c77d4546 | 2216 | * | | |
0a589359 | 2217 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
2218 | * | metric | |
2219 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2d7f0d76 DS |
2220 | * | speed | |
2221 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee OD |
2222 | * | ifmtu | |
2223 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2224 | * | ifmtu6 | | |
2225 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
2226 | * | bandwidth | | |
2227 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
53e60e5c QY |
2228 | * | parent ifindex | |
2229 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
16f1b9ee | 2230 | * | Link Layer Type | |
0a589359 | 2231 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 2232 | * | Harware Address Length | |
0a589359 | 2233 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
03bad95a | 2234 | * | Hardware Address if HW length different from 0 | |
16f1b9ee | 2235 | * | ... max INTERFACE_HWADDR_MAX | |
0a589359 | 2236 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee | 2237 | * | Link_params? | Whether a link-params follows: 1 or 0. |
0a589359 | 2238 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
16f1b9ee OD |
2239 | * | Link_params 0 or 1 INTERFACE_LINK_PARAMS_SIZE sized | |
2240 | * | .... (struct if_link_params). | | |
0a589359 | 2241 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2242 | */ | |
2243 | ||
a243d1db | 2244 | static int zclient_vrf_add(ZAPI_CALLBACK_ARGS) |
1892f15e | 2245 | { |
d62a17ae | 2246 | struct vrf *vrf; |
f17a9d0a | 2247 | char vrfname_tmp[VRF_NAMSIZ + 1] = {}; |
d62a17ae | 2248 | struct vrf_data data; |
1892f15e | 2249 | |
efc7191b | 2250 | STREAM_GET(&data, zclient->ibuf, sizeof(struct vrf_data)); |
d62a17ae | 2251 | /* Read interface name. */ |
efc7191b | 2252 | STREAM_GET(vrfname_tmp, zclient->ibuf, VRF_NAMSIZ); |
1892f15e | 2253 | |
f17a9d0a QY |
2254 | if (strlen(vrfname_tmp) == 0) |
2255 | goto stream_failure; | |
2256 | ||
cff0de12 | 2257 | /* Lookup/create vrf by name, then vrf_id. */ |
d62a17ae | 2258 | vrf = vrf_get(vrf_id, vrfname_tmp); |
f17a9d0a | 2259 | |
cff0de12 QY |
2260 | /* If there's already a VRF with this name, don't create vrf */ |
2261 | if (!vrf) | |
f17a9d0a QY |
2262 | return 0; |
2263 | ||
4691b65a PG |
2264 | vrf->data.l.table_id = data.l.table_id; |
2265 | memcpy(vrf->data.l.netns_name, data.l.netns_name, NS_NAMSIZ); | |
d62a17ae | 2266 | vrf_enable(vrf); |
efc7191b QY |
2267 | |
2268 | return 0; | |
2269 | stream_failure: | |
2270 | return -1; | |
1892f15e DS |
2271 | } |
2272 | ||
a243d1db | 2273 | static int zclient_vrf_delete(ZAPI_CALLBACK_ARGS) |
1892f15e | 2274 | { |
d62a17ae | 2275 | struct vrf *vrf; |
1892f15e | 2276 | |
d62a17ae | 2277 | /* Lookup vrf by vrf_id. */ |
2278 | vrf = vrf_lookup_by_id(vrf_id); | |
1892f15e | 2279 | |
d62a17ae | 2280 | /* |
2281 | * If a routing protocol doesn't know about a | |
2282 | * vrf that is about to be deleted. There is | |
2283 | * no point in attempting to delete it. | |
2284 | */ | |
2285 | if (!vrf) | |
a243d1db | 2286 | return 0; |
beef1990 | 2287 | |
d62a17ae | 2288 | vrf_delete(vrf); |
a243d1db | 2289 | return 0; |
1892f15e DS |
2290 | } |
2291 | ||
a243d1db | 2292 | static int zclient_interface_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 2293 | { |
d62a17ae | 2294 | struct interface *ifp; |
b98edbcc | 2295 | char ifname_tmp[INTERFACE_NAMSIZ + 1] = {}; |
ef7bd2a3 | 2296 | struct stream *s = zclient->ibuf; |
f60a1188 | 2297 | struct vrf *vrf; |
718e3744 | 2298 | |
d62a17ae | 2299 | /* Read interface name. */ |
efc7191b | 2300 | STREAM_GET(ifname_tmp, s, INTERFACE_NAMSIZ); |
718e3744 | 2301 | |
d62a17ae | 2302 | /* Lookup/create interface by name. */ |
f60a1188 IR |
2303 | vrf = vrf_lookup_by_id(vrf_id); |
2304 | if (!vrf) { | |
229d0d4e QY |
2305 | zlog_debug( |
2306 | "Rx'd interface add from Zebra, but VRF %u does not exist", | |
2307 | vrf_id); | |
2308 | return -1; | |
2309 | } | |
2310 | ||
f60a1188 | 2311 | ifp = if_get_by_name(ifname_tmp, vrf_id, vrf->name); |
a41c4e1b | 2312 | |
d62a17ae | 2313 | zebra_interface_if_set_value(s, ifp); |
718e3744 | 2314 | |
ef7bd2a3 | 2315 | if_new_via_zapi(ifp); |
efc7191b QY |
2316 | |
2317 | return 0; | |
2318 | stream_failure: | |
2319 | return -1; | |
718e3744 | 2320 | } |
2321 | ||
d62a17ae | 2322 | /* |
0a589359 | 2323 | * Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN) |
2324 | * from zebra server. The format of this message is the same as | |
ef7bd2a3 DS |
2325 | * that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE, |
2326 | * except that no sockaddr_dl is sent at the tail of the message. | |
0a589359 | 2327 | */ |
d62a17ae | 2328 | struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t vrf_id) |
718e3744 | 2329 | { |
d62a17ae | 2330 | struct interface *ifp; |
f17a9d0a | 2331 | char ifname_tmp[INTERFACE_NAMSIZ + 1] = {}; |
d62a17ae | 2332 | |
2333 | /* Read interface name. */ | |
efc7191b | 2334 | STREAM_GET(ifname_tmp, s, INTERFACE_NAMSIZ); |
d62a17ae | 2335 | |
2336 | /* Lookup this by interface index. */ | |
a36898e7 | 2337 | ifp = if_lookup_by_name(ifname_tmp, vrf_id); |
d62a17ae | 2338 | if (ifp == NULL) { |
450971aa | 2339 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
2340 | "INTERFACE_STATE: Cannot find IF %s in VRF %d", |
2341 | ifname_tmp, vrf_id); | |
d62a17ae | 2342 | return NULL; |
2343 | } | |
2344 | ||
2345 | zebra_interface_if_set_value(s, ifp); | |
2346 | ||
2347 | return ifp; | |
efc7191b QY |
2348 | stream_failure: |
2349 | return NULL; | |
718e3744 | 2350 | } |
2351 | ||
a243d1db | 2352 | static int zclient_interface_delete(ZAPI_CALLBACK_ARGS) |
3c3c3252 DS |
2353 | { |
2354 | struct interface *ifp; | |
2355 | struct stream *s = zclient->ibuf; | |
2356 | ||
2357 | ifp = zebra_interface_state_read(s, vrf_id); | |
2358 | ||
2359 | if (ifp == NULL) | |
a243d1db | 2360 | return 0; |
3c3c3252 DS |
2361 | |
2362 | if_destroy_via_zapi(ifp); | |
a243d1db | 2363 | return 0; |
3c3c3252 DS |
2364 | } |
2365 | ||
a243d1db | 2366 | static int zclient_interface_up(ZAPI_CALLBACK_ARGS) |
ddbf3e60 DS |
2367 | { |
2368 | struct interface *ifp; | |
2369 | struct stream *s = zclient->ibuf; | |
2370 | ||
2371 | ifp = zebra_interface_state_read(s, vrf_id); | |
2372 | ||
2373 | if (!ifp) | |
a243d1db | 2374 | return 0; |
ddbf3e60 DS |
2375 | |
2376 | if_up_via_zapi(ifp); | |
a243d1db | 2377 | return 0; |
ddbf3e60 DS |
2378 | } |
2379 | ||
a243d1db | 2380 | static int zclient_interface_down(ZAPI_CALLBACK_ARGS) |
b0b69e59 DS |
2381 | { |
2382 | struct interface *ifp; | |
2383 | struct stream *s = zclient->ibuf; | |
2384 | ||
2385 | ifp = zebra_interface_state_read(s, vrf_id); | |
2386 | ||
2387 | if (!ifp) | |
a243d1db | 2388 | return 0; |
b0b69e59 DS |
2389 | |
2390 | if_down_via_zapi(ifp); | |
a243d1db | 2391 | return 0; |
b0b69e59 DS |
2392 | } |
2393 | ||
a243d1db | 2394 | static int zclient_handle_error(ZAPI_CALLBACK_ARGS) |
9ab0b2a3 SW |
2395 | { |
2396 | enum zebra_error_types error; | |
2397 | struct stream *s = zclient->ibuf; | |
2398 | ||
2399 | zapi_error_decode(s, &error); | |
2400 | ||
2401 | if (zclient->handle_error) | |
2402 | (*zclient->handle_error)(error); | |
a243d1db | 2403 | return 0; |
9ab0b2a3 SW |
2404 | } |
2405 | ||
fe0a1296 | 2406 | static int link_params_set_value(struct stream *s, struct interface *ifp) |
16f1b9ee | 2407 | { |
15833261 | 2408 | uint8_t link_params_enabled, nb_ext_adm_grp; |
fe0a1296 | 2409 | struct if_link_params *iflp; |
15833261 | 2410 | uint32_t bwclassnum, bitmap_data; |
fe0a1296 LS |
2411 | |
2412 | iflp = if_link_params_get(ifp); | |
16f1b9ee | 2413 | |
d62a17ae | 2414 | if (iflp == NULL) |
fe0a1296 | 2415 | iflp = if_link_params_init(ifp); |
d62a17ae | 2416 | |
fe0a1296 LS |
2417 | STREAM_GETC(s, link_params_enabled); |
2418 | if (!link_params_enabled) { | |
2419 | if_link_params_free(ifp); | |
2420 | return 0; | |
2421 | } | |
efc7191b QY |
2422 | |
2423 | STREAM_GETL(s, iflp->lp_status); | |
2424 | STREAM_GETL(s, iflp->te_metric); | |
2425 | STREAM_GETF(s, iflp->max_bw); | |
2426 | STREAM_GETF(s, iflp->max_rsv_bw); | |
2427 | STREAM_GETL(s, bwclassnum); | |
d62a17ae | 2428 | { |
2429 | unsigned int i; | |
2430 | for (i = 0; i < bwclassnum && i < MAX_CLASS_TYPE; i++) | |
efc7191b | 2431 | STREAM_GETF(s, iflp->unrsv_bw[i]); |
d62a17ae | 2432 | if (i < bwclassnum) |
1c50c1c0 QY |
2433 | flog_err( |
2434 | EC_LIB_ZAPI_MISSMATCH, | |
3efd0893 | 2435 | "%s: received %d > %d (MAX_CLASS_TYPE) bw entries - outdated library?", |
1c50c1c0 | 2436 | __func__, bwclassnum, MAX_CLASS_TYPE); |
d62a17ae | 2437 | } |
efc7191b | 2438 | STREAM_GETL(s, iflp->admin_grp); |
15833261 LS |
2439 | |
2440 | /* Extended Administrative Group */ | |
2441 | admin_group_clear(&iflp->ext_admin_grp); | |
2442 | STREAM_GETC(s, nb_ext_adm_grp); | |
2443 | for (size_t i = 0; i < nb_ext_adm_grp; i++) { | |
2444 | STREAM_GETL(s, bitmap_data); | |
2445 | admin_group_bulk_set(&iflp->ext_admin_grp, bitmap_data, i); | |
2446 | } | |
2447 | ||
efc7191b | 2448 | STREAM_GETL(s, iflp->rmt_as); |
d62a17ae | 2449 | iflp->rmt_ip.s_addr = stream_get_ipv4(s); |
2450 | ||
efc7191b QY |
2451 | STREAM_GETL(s, iflp->av_delay); |
2452 | STREAM_GETL(s, iflp->min_delay); | |
2453 | STREAM_GETL(s, iflp->max_delay); | |
2454 | STREAM_GETL(s, iflp->delay_var); | |
2455 | ||
2456 | STREAM_GETF(s, iflp->pkt_loss); | |
2457 | STREAM_GETF(s, iflp->res_bw); | |
2458 | STREAM_GETF(s, iflp->ava_bw); | |
2459 | STREAM_GETF(s, iflp->use_bw); | |
d62a17ae | 2460 | |
efc7191b QY |
2461 | return 0; |
2462 | stream_failure: | |
2463 | return -1; | |
16f1b9ee OD |
2464 | } |
2465 | ||
edc12762 | 2466 | struct interface *zebra_interface_link_params_read(struct stream *s, |
0b4124c1 KS |
2467 | vrf_id_t vrf_id, |
2468 | bool *changed) | |
16f1b9ee | 2469 | { |
d62a17ae | 2470 | struct if_link_params *iflp; |
15833261 | 2471 | struct if_link_params iflp_prev = {0}; |
d62a17ae | 2472 | ifindex_t ifindex; |
15833261 | 2473 | bool iflp_prev_set = false; |
c28e5b2a | 2474 | |
efc7191b | 2475 | STREAM_GETL(s, ifindex); |
16f1b9ee | 2476 | |
a36898e7 | 2477 | struct interface *ifp = if_lookup_by_index(ifindex, vrf_id); |
16f1b9ee | 2478 | |
d62a17ae | 2479 | if (ifp == NULL) { |
450971aa | 2480 | flog_err(EC_LIB_ZAPI_ENCODE, |
1c50c1c0 QY |
2481 | "%s: unknown ifindex %u, shouldn't happen", __func__, |
2482 | ifindex); | |
d62a17ae | 2483 | return NULL; |
2484 | } | |
16f1b9ee | 2485 | |
15833261 LS |
2486 | iflp = if_link_params_get(ifp); |
2487 | ||
2488 | if (iflp) { | |
fe0a1296 | 2489 | iflp_prev_set = true; |
15833261 LS |
2490 | admin_group_init(&iflp_prev.ext_admin_grp); |
2491 | if_link_params_copy(&iflp_prev, iflp); | |
2492 | } | |
0b4124c1 | 2493 | |
fe0a1296 LS |
2494 | /* read the link_params from stream |
2495 | * Free ifp->link_params if the stream has no params | |
2496 | * to means that link-params are not enabled on links. | |
2497 | */ | |
2498 | if (link_params_set_value(s, ifp) != 0) | |
efc7191b | 2499 | goto stream_failure; |
16f1b9ee | 2500 | |
15833261 LS |
2501 | if (changed != NULL) { |
2502 | iflp = if_link_params_get(ifp); | |
0b4124c1 | 2503 | |
15833261 LS |
2504 | if (iflp_prev_set && iflp) { |
2505 | if (if_link_params_cmp(&iflp_prev, iflp)) | |
2506 | *changed = false; | |
2507 | else | |
2508 | *changed = true; | |
2509 | } else if (!iflp_prev_set && !iflp) | |
fe0a1296 | 2510 | *changed = false; |
15833261 LS |
2511 | else |
2512 | *changed = true; | |
2513 | } | |
2514 | ||
2515 | if (iflp_prev_set) | |
2516 | admin_group_term(&iflp_prev.ext_admin_grp); | |
0b4124c1 | 2517 | |
d62a17ae | 2518 | return ifp; |
efc7191b QY |
2519 | |
2520 | stream_failure: | |
15833261 LS |
2521 | if (iflp_prev_set) |
2522 | admin_group_term(&iflp_prev.ext_admin_grp); | |
efc7191b | 2523 | return NULL; |
16f1b9ee OD |
2524 | } |
2525 | ||
41ce5384 QY |
2526 | static void zebra_interface_if_set_value(struct stream *s, |
2527 | struct interface *ifp) | |
16f1b9ee | 2528 | { |
d7c0a89a | 2529 | uint8_t link_params_status = 0; |
41ce5384 | 2530 | ifindex_t old_ifindex, new_ifindex; |
efc7191b | 2531 | |
e7ff0253 | 2532 | old_ifindex = ifp->oldifindex; |
d62a17ae | 2533 | /* Read interface's index. */ |
41ce5384 QY |
2534 | STREAM_GETL(s, new_ifindex); |
2535 | if_set_index(ifp, new_ifindex); | |
2536 | STREAM_GETC(s, ifp->status); | |
d62a17ae | 2537 | |
2538 | /* Read interface's value. */ | |
41ce5384 QY |
2539 | STREAM_GETQ(s, ifp->flags); |
2540 | STREAM_GETC(s, ifp->ptm_enable); | |
2541 | STREAM_GETC(s, ifp->ptm_status); | |
2542 | STREAM_GETL(s, ifp->metric); | |
2543 | STREAM_GETL(s, ifp->speed); | |
2544 | STREAM_GETL(s, ifp->mtu); | |
2545 | STREAM_GETL(s, ifp->mtu6); | |
2546 | STREAM_GETL(s, ifp->bandwidth); | |
2547 | STREAM_GETL(s, ifp->link_ifindex); | |
2548 | STREAM_GETL(s, ifp->ll_type); | |
2549 | STREAM_GETL(s, ifp->hw_addr_len); | |
2550 | if (ifp->hw_addr_len) | |
2551 | STREAM_GET(ifp->hw_addr, s, | |
2552 | MIN(ifp->hw_addr_len, INTERFACE_HWADDR_MAX)); | |
d62a17ae | 2553 | |
2554 | /* Read Traffic Engineering status */ | |
41ce5384 | 2555 | link_params_status = stream_getc(s); |
d62a17ae | 2556 | /* Then, Traffic Engineering parameters if any */ |
fe0a1296 LS |
2557 | if (link_params_status) |
2558 | link_params_set_value(s, ifp); | |
98cbbaea DS |
2559 | |
2560 | nexthop_group_interface_state_change(ifp, old_ifindex); | |
efc7191b | 2561 | |
41ce5384 | 2562 | return; |
efc7191b | 2563 | stream_failure: |
41ce5384 QY |
2564 | zlog_err("Could not parse interface values; aborting"); |
2565 | assert(!"Failed to parse interface values"); | |
16f1b9ee OD |
2566 | } |
2567 | ||
d62a17ae | 2568 | size_t zebra_interface_link_params_write(struct stream *s, |
2569 | struct interface *ifp) | |
16f1b9ee | 2570 | { |
15833261 | 2571 | size_t w, nb_ext_adm_grp; |
d62a17ae | 2572 | struct if_link_params *iflp; |
2573 | int i; | |
16f1b9ee | 2574 | |
15833261 | 2575 | |
fe0a1296 | 2576 | if (s == NULL || ifp == NULL) |
d62a17ae | 2577 | return 0; |
16f1b9ee | 2578 | |
d62a17ae | 2579 | iflp = ifp->link_params; |
2580 | w = 0; | |
16f1b9ee | 2581 | |
fe0a1296 LS |
2582 | /* encode if link_params is enabled */ |
2583 | if (iflp) { | |
2584 | w += stream_putc(s, true); | |
2585 | } else { | |
2586 | w += stream_putc(s, false); | |
2587 | return w; | |
2588 | } | |
2589 | ||
d62a17ae | 2590 | w += stream_putl(s, iflp->lp_status); |
16f1b9ee | 2591 | |
d62a17ae | 2592 | w += stream_putl(s, iflp->te_metric); |
2593 | w += stream_putf(s, iflp->max_bw); | |
2594 | w += stream_putf(s, iflp->max_rsv_bw); | |
16f1b9ee | 2595 | |
d62a17ae | 2596 | w += stream_putl(s, MAX_CLASS_TYPE); |
2597 | for (i = 0; i < MAX_CLASS_TYPE; i++) | |
2598 | w += stream_putf(s, iflp->unrsv_bw[i]); | |
16f1b9ee | 2599 | |
d62a17ae | 2600 | w += stream_putl(s, iflp->admin_grp); |
15833261 LS |
2601 | |
2602 | /* Extended Administrative Group */ | |
2603 | nb_ext_adm_grp = admin_group_nb_words(&iflp->ext_admin_grp); | |
2604 | w += stream_putc(s, nb_ext_adm_grp); | |
2605 | for (size_t i = 0; i < nb_ext_adm_grp; i++) | |
2606 | stream_putl(s, admin_group_get_offset(&iflp->ext_admin_grp, i)); | |
2607 | ||
d62a17ae | 2608 | w += stream_putl(s, iflp->rmt_as); |
2609 | w += stream_put_in_addr(s, &iflp->rmt_ip); | |
16f1b9ee | 2610 | |
d62a17ae | 2611 | w += stream_putl(s, iflp->av_delay); |
2612 | w += stream_putl(s, iflp->min_delay); | |
2613 | w += stream_putl(s, iflp->max_delay); | |
2614 | w += stream_putl(s, iflp->delay_var); | |
16f1b9ee | 2615 | |
d62a17ae | 2616 | w += stream_putf(s, iflp->pkt_loss); |
2617 | w += stream_putf(s, iflp->res_bw); | |
2618 | w += stream_putf(s, iflp->ava_bw); | |
2619 | w += stream_putf(s, iflp->use_bw); | |
16f1b9ee | 2620 | |
d62a17ae | 2621 | return w; |
16f1b9ee OD |
2622 | } |
2623 | ||
2624 | /* | |
03bad95a | 2625 | * format of message for address addition is: |
0a589359 | 2626 | * 0 |
2627 | * 0 1 2 3 4 5 6 7 | |
2628 | * +-+-+-+-+-+-+-+-+ | |
2629 | * | type | ZEBRA_INTERFACE_ADDRESS_ADD or | |
2630 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_ADDRES_DELETE | |
2631 | * | | | |
2632 | * + + | |
2633 | * | ifindex | | |
2634 | * + + | |
2635 | * | | | |
2636 | * + + | |
2637 | * | | | |
2638 | * +-+-+-+-+-+-+-+-+ | |
2639 | * | ifc_flags | flags for connected address | |
2640 | * +-+-+-+-+-+-+-+-+ | |
2641 | * | addr_family | | |
2642 | * +-+-+-+-+-+-+-+-+ | |
2643 | * | addr... | | |
2644 | * : : | |
2645 | * | | | |
2646 | * +-+-+-+-+-+-+-+-+ | |
2647 | * | addr_len | len of addr. E.g., addr_len = 4 for ipv4 addrs. | |
2648 | * +-+-+-+-+-+-+-+-+ | |
2649 | * | daddr.. | | |
2650 | * : : | |
2651 | * | | | |
2652 | * +-+-+-+-+-+-+-+-+ | |
0a589359 | 2653 | */ |
2654 | ||
d62a17ae | 2655 | static int memconstant(const void *s, int c, size_t n) |
3fb9cd6e | 2656 | { |
d7c0a89a | 2657 | const uint8_t *p = s; |
3fb9cd6e | 2658 | |
d62a17ae | 2659 | while (n-- > 0) |
2660 | if (*p++ != c) | |
2661 | return 0; | |
2662 | return 1; | |
3fb9cd6e | 2663 | } |
2664 | ||
d5a5c8f0 | 2665 | |
d62a17ae | 2666 | struct connected *zebra_interface_address_read(int type, struct stream *s, |
2667 | vrf_id_t vrf_id) | |
718e3744 | 2668 | { |
d62a17ae | 2669 | ifindex_t ifindex; |
2670 | struct interface *ifp; | |
2671 | struct connected *ifc; | |
2672 | struct prefix p, d, *dp; | |
2673 | int plen; | |
d7c0a89a | 2674 | uint8_t ifc_flags; |
d62a17ae | 2675 | |
2676 | memset(&p, 0, sizeof(p)); | |
2677 | memset(&d, 0, sizeof(d)); | |
2678 | ||
2679 | /* Get interface index. */ | |
efc7191b | 2680 | STREAM_GETL(s, ifindex); |
d62a17ae | 2681 | |
2682 | /* Lookup index. */ | |
2683 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
2684 | if (ifp == NULL) { | |
450971aa | 2685 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
2686 | "INTERFACE_ADDRESS_%s: Cannot find IF %u in VRF %d", |
2687 | (type == ZEBRA_INTERFACE_ADDRESS_ADD) ? "ADD" : "DEL", | |
2688 | ifindex, vrf_id); | |
d62a17ae | 2689 | return NULL; |
2690 | } | |
2691 | ||
2692 | /* Fetch flag. */ | |
efc7191b | 2693 | STREAM_GETC(s, ifc_flags); |
d62a17ae | 2694 | |
2695 | /* Fetch interface address. */ | |
efc7191b | 2696 | STREAM_GETC(s, d.family); |
e4f5680d | 2697 | p.family = d.family; |
d62a17ae | 2698 | plen = prefix_blen(&d); |
2699 | ||
efc7191b QY |
2700 | if (zclient_stream_get_prefix(s, &p) != 0) |
2701 | goto stream_failure; | |
d62a17ae | 2702 | |
2703 | /* Fetch destination address. */ | |
efc7191b | 2704 | STREAM_GET(&d.u.prefix, s, plen); |
d62a17ae | 2705 | |
2706 | /* N.B. NULL destination pointers are encoded as all zeroes */ | |
2707 | dp = memconstant(&d.u.prefix, 0, plen) ? NULL : &d; | |
2708 | ||
2709 | if (type == ZEBRA_INTERFACE_ADDRESS_ADD) { | |
2710 | ifc = connected_lookup_prefix_exact(ifp, &p); | |
2711 | if (!ifc) { | |
2712 | /* N.B. NULL destination pointers are encoded as all | |
2713 | * zeroes */ | |
2714 | ifc = connected_add_by_prefix(ifp, &p, dp); | |
2715 | } | |
2716 | if (ifc) { | |
2717 | ifc->flags = ifc_flags; | |
2718 | if (ifc->destination) | |
2719 | ifc->destination->prefixlen = | |
2720 | ifc->address->prefixlen; | |
2721 | else if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { | |
2722 | /* carp interfaces on OpenBSD with 0.0.0.0/0 as | |
2723 | * "peer" */ | |
ade6974d | 2724 | flog_err( |
450971aa | 2725 | EC_LIB_ZAPI_ENCODE, |
a0ee6f32 | 2726 | "interface %s address %pFX with peer flag set, but no peer address!", |
2dbe669b | 2727 | ifp->name, ifc->address); |
d62a17ae | 2728 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); |
2729 | } | |
2730 | } | |
2731 | } else { | |
2732 | assert(type == ZEBRA_INTERFACE_ADDRESS_DELETE); | |
2733 | ifc = connected_delete_by_prefix(ifp, &p); | |
2734 | } | |
2735 | ||
2736 | return ifc; | |
efc7191b QY |
2737 | |
2738 | stream_failure: | |
2739 | return NULL; | |
718e3744 | 2740 | } |
0a589359 | 2741 | |
a80beece DS |
2742 | /* |
2743 | * format of message for neighbor connected address is: | |
2744 | * 0 | |
2745 | * 0 1 2 3 4 5 6 7 | |
2746 | * +-+-+-+-+-+-+-+-+ | |
2747 | * | type | ZEBRA_INTERFACE_NBR_ADDRESS_ADD or | |
2748 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_NBR_ADDRES_DELETE | |
2749 | * | | | |
2750 | * + + | |
2751 | * | ifindex | | |
2752 | * + + | |
2753 | * | | | |
2754 | * + + | |
2755 | * | | | |
2756 | * +-+-+-+-+-+-+-+-+ | |
2757 | * | addr_family | | |
2758 | * +-+-+-+-+-+-+-+-+ | |
2759 | * | addr... | | |
2760 | * : : | |
2761 | * | | | |
2762 | * +-+-+-+-+-+-+-+-+ | |
2763 | * | addr_len | len of addr. | |
2764 | * +-+-+-+-+-+-+-+-+ | |
2765 | */ | |
2766 | struct nbr_connected * | |
d62a17ae | 2767 | zebra_interface_nbr_address_read(int type, struct stream *s, vrf_id_t vrf_id) |
a80beece | 2768 | { |
d62a17ae | 2769 | unsigned int ifindex; |
2770 | struct interface *ifp; | |
2771 | struct prefix p; | |
2772 | struct nbr_connected *ifc; | |
2773 | ||
2774 | /* Get interface index. */ | |
efc7191b | 2775 | STREAM_GETL(s, ifindex); |
d62a17ae | 2776 | |
2777 | /* Lookup index. */ | |
2778 | ifp = if_lookup_by_index(ifindex, vrf_id); | |
2779 | if (ifp == NULL) { | |
450971aa | 2780 | flog_err(EC_LIB_ZAPI_ENCODE, |
decbd929 DS |
2781 | "INTERFACE_NBR_%s: Cannot find IF %u in VRF %d", |
2782 | (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) ? "ADD" | |
ade6974d QY |
2783 | : "DELETE", |
2784 | ifindex, vrf_id); | |
d62a17ae | 2785 | return NULL; |
2786 | } | |
2787 | ||
efc7191b QY |
2788 | STREAM_GETC(s, p.family); |
2789 | STREAM_GET(&p.u.prefix, s, prefix_blen(&p)); | |
2790 | STREAM_GETC(s, p.prefixlen); | |
d62a17ae | 2791 | |
2792 | if (type == ZEBRA_INTERFACE_NBR_ADDRESS_ADD) { | |
2793 | /* Currently only supporting P2P links, so any new RA source | |
2794 | address is | |
2795 | considered as the replacement of the previously learnt | |
2796 | Link-Local address. */ | |
2797 | if (!(ifc = listnode_head(ifp->nbr_connected))) { | |
2798 | ifc = nbr_connected_new(); | |
2799 | ifc->address = prefix_new(); | |
2800 | ifc->ifp = ifp; | |
2801 | listnode_add(ifp->nbr_connected, ifc); | |
2802 | } | |
2803 | ||
2804 | prefix_copy(ifc->address, &p); | |
2805 | } else { | |
2806 | assert(type == ZEBRA_INTERFACE_NBR_ADDRESS_DELETE); | |
2807 | ||
2808 | ifc = nbr_connected_check(ifp, &p); | |
2809 | if (ifc) | |
2810 | listnode_delete(ifp->nbr_connected, ifc); | |
2811 | } | |
2812 | ||
2813 | return ifc; | |
efc7191b QY |
2814 | |
2815 | stream_failure: | |
2816 | return NULL; | |
a80beece | 2817 | } |
6b0655a2 | 2818 | |
d62a17ae | 2819 | struct interface *zebra_interface_vrf_update_read(struct stream *s, |
2820 | vrf_id_t vrf_id, | |
2821 | vrf_id_t *new_vrf_id) | |
c8e264b6 | 2822 | { |
f17a9d0a | 2823 | char ifname[INTERFACE_NAMSIZ + 1] = {}; |
d62a17ae | 2824 | struct interface *ifp; |
a9ff90c4 | 2825 | vrf_id_t new_id; |
d62a17ae | 2826 | |
91d227b7 | 2827 | /* Read interface name. */ |
efc7191b | 2828 | STREAM_GET(ifname, s, INTERFACE_NAMSIZ); |
d62a17ae | 2829 | |
2830 | /* Lookup interface. */ | |
a36898e7 | 2831 | ifp = if_lookup_by_name(ifname, vrf_id); |
d62a17ae | 2832 | if (ifp == NULL) { |
450971aa | 2833 | flog_err(EC_LIB_ZAPI_ENCODE, |
91d227b7 RW |
2834 | "INTERFACE_VRF_UPDATE: Cannot find IF %s in VRF %d", |
2835 | ifname, vrf_id); | |
d62a17ae | 2836 | return NULL; |
2837 | } | |
2838 | ||
2839 | /* Fetch new VRF Id. */ | |
efc7191b | 2840 | STREAM_GETL(s, new_id); |
d62a17ae | 2841 | |
2842 | *new_vrf_id = new_id; | |
2843 | return ifp; | |
efc7191b QY |
2844 | |
2845 | stream_failure: | |
2846 | return NULL; | |
c8e264b6 | 2847 | } |
5c7ef8dc | 2848 | |
2849 | /* filter unwanted messages until the expected one arrives */ | |
d62a17ae | 2850 | static int zclient_read_sync_response(struct zclient *zclient, |
d7c0a89a | 2851 | uint16_t expected_cmd) |
5c7ef8dc | 2852 | { |
d62a17ae | 2853 | struct stream *s; |
d7c0a89a QY |
2854 | uint16_t size = -1; |
2855 | uint8_t marker; | |
2856 | uint8_t version; | |
d62a17ae | 2857 | vrf_id_t vrf_id; |
d7c0a89a | 2858 | uint16_t cmd; |
d62a17ae | 2859 | fd_set readfds; |
2860 | int ret; | |
2861 | ||
2862 | ret = 0; | |
2863 | cmd = expected_cmd + 1; | |
2864 | while (ret == 0 && cmd != expected_cmd) { | |
2865 | s = zclient->ibuf; | |
2866 | stream_reset(s); | |
2867 | ||
2868 | /* wait until response arrives */ | |
2869 | FD_ZERO(&readfds); | |
2870 | FD_SET(zclient->sock, &readfds); | |
2871 | select(zclient->sock + 1, &readfds, NULL, NULL, NULL); | |
2872 | if (!FD_ISSET(zclient->sock, &readfds)) | |
2873 | continue; | |
2874 | /* read response */ | |
2875 | ret = zclient_read_header(s, zclient->sock, &size, &marker, | |
2876 | &version, &vrf_id, &cmd); | |
2877 | if (zclient_debug) | |
2878 | zlog_debug("%s: Response (%d bytes) received", __func__, | |
2879 | size); | |
2880 | } | |
2881 | if (ret != 0) { | |
1c50c1c0 QY |
2882 | flog_err(EC_LIB_ZAPI_ENCODE, "%s: Invalid Sync Message Reply", |
2883 | __func__); | |
d62a17ae | 2884 | return -1; |
2885 | } | |
2886 | ||
2887 | return 0; | |
5c7ef8dc | 2888 | } |
fea12efb | 2889 | /** |
03bad95a | 2890 | * Connect to label manager in a synchronous way |
fea12efb | 2891 | * |
03bad95a | 2892 | * It first writes the request to zclient output buffer and then |
fea12efb | 2893 | * immediately reads the answer from the input buffer. |
2894 | * | |
2895 | * @param zclient Zclient used to connect to label manager (zebra) | |
f533be73 | 2896 | * @param async Synchronous (0) or asynchronous (1) operation |
fea12efb | 2897 | * @result Result of response |
2898 | */ | |
f533be73 | 2899 | int lm_label_manager_connect(struct zclient *zclient, int async) |
fea12efb | 2900 | { |
d62a17ae | 2901 | int ret; |
2902 | struct stream *s; | |
d7c0a89a | 2903 | uint8_t result; |
f533be73 | 2904 | uint16_t cmd = async ? ZEBRA_LABEL_MANAGER_CONNECT_ASYNC : |
2905 | ZEBRA_LABEL_MANAGER_CONNECT; | |
d62a17ae | 2906 | |
2907 | if (zclient_debug) | |
35cbe02a | 2908 | zlog_debug("Connecting to Label Manager (LM)"); |
d62a17ae | 2909 | |
f533be73 | 2910 | if (zclient->sock < 0) { |
2911 | zlog_debug("%s: invalid zclient socket", __func__); | |
d62a17ae | 2912 | return -1; |
f533be73 | 2913 | } |
d62a17ae | 2914 | |
2915 | /* send request */ | |
2916 | s = zclient->obuf; | |
2917 | stream_reset(s); | |
f533be73 | 2918 | zclient_create_header(s, cmd, VRF_DEFAULT); |
d62a17ae | 2919 | |
2920 | /* proto */ | |
2921 | stream_putc(s, zclient->redist_default); | |
2922 | /* instance */ | |
2923 | stream_putw(s, zclient->instance); | |
2924 | ||
2925 | /* Put length at the first point of the stream. */ | |
2926 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2927 | ||
2928 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
2929 | if (ret < 0) { | |
450971aa | 2930 | flog_err(EC_LIB_ZAPI_SOCKET, "Can't write to zclient sock"); |
d62a17ae | 2931 | close(zclient->sock); |
2932 | zclient->sock = -1; | |
2933 | return -1; | |
2934 | } | |
2935 | if (ret == 0) { | |
450971aa | 2936 | flog_err(EC_LIB_ZAPI_SOCKET, "Zclient sock closed"); |
d62a17ae | 2937 | close(zclient->sock); |
2938 | zclient->sock = -1; | |
2939 | return -1; | |
2940 | } | |
2941 | if (zclient_debug) | |
35cbe02a | 2942 | zlog_debug("LM connect request sent (%d bytes)", ret); |
d62a17ae | 2943 | |
f533be73 | 2944 | if (async) |
2945 | return 0; | |
2946 | ||
d62a17ae | 2947 | /* read response */ |
f533be73 | 2948 | if (zclient_read_sync_response(zclient, cmd) |
d62a17ae | 2949 | != 0) |
2950 | return -1; | |
2951 | ||
d62a17ae | 2952 | s = zclient->ibuf; |
5dffb0e9 FR |
2953 | |
2954 | /* read instance and proto */ | |
efc7191b QY |
2955 | uint8_t proto; |
2956 | uint16_t instance; | |
2957 | ||
2958 | STREAM_GETC(s, proto); | |
2959 | STREAM_GETW(s, instance); | |
5dffb0e9 FR |
2960 | |
2961 | /* sanity */ | |
2962 | if (proto != zclient->redist_default) | |
1c50c1c0 QY |
2963 | flog_err( |
2964 | EC_LIB_ZAPI_ENCODE, | |
2965 | "Wrong proto (%u) in LM connect response. Should be %u", | |
2966 | proto, zclient->redist_default); | |
5dffb0e9 | 2967 | if (instance != zclient->instance) |
1c50c1c0 QY |
2968 | flog_err( |
2969 | EC_LIB_ZAPI_ENCODE, | |
2970 | "Wrong instId (%u) in LM connect response. Should be %u", | |
2971 | instance, zclient->instance); | |
5dffb0e9 FR |
2972 | |
2973 | /* result code */ | |
efc7191b | 2974 | STREAM_GETC(s, result); |
d62a17ae | 2975 | if (zclient_debug) |
0313523d | 2976 | zlog_debug("LM connect-response received, result %u", result); |
f2867068 HS |
2977 | |
2978 | return (int)result; | |
2979 | ||
2980 | stream_failure: | |
2981 | return -1; | |
2982 | } | |
2983 | ||
2984 | /** | |
03bad95a | 2985 | * Function to request a srv6-locator chunk in an asynchronous way |
f2867068 | 2986 | * |
f2867068 HS |
2987 | * @param zclient Zclient used to connect to table manager (zebra) |
2988 | * @param locator_name Name of SRv6-locator | |
2989 | * @result 0 on success, -1 otherwise | |
2990 | */ | |
2991 | int srv6_manager_get_locator_chunk(struct zclient *zclient, | |
2992 | const char *locator_name) | |
2993 | { | |
2994 | struct stream *s; | |
2995 | const size_t len = strlen(locator_name); | |
2996 | ||
2997 | if (zclient_debug) | |
2998 | zlog_debug("Getting SRv6-Locator Chunk %s", locator_name); | |
2999 | ||
3000 | if (zclient->sock < 0) | |
3001 | return -1; | |
3002 | ||
3003 | /* send request */ | |
3004 | s = zclient->obuf; | |
3005 | stream_reset(s); | |
4df9d859 HS |
3006 | zclient_create_header(s, ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK, |
3007 | VRF_DEFAULT); | |
f2867068 | 3008 | |
f2867068 HS |
3009 | /* locator_name */ |
3010 | stream_putw(s, len); | |
3011 | stream_put(s, locator_name, len); | |
3012 | ||
3013 | /* Put length at the first point of the stream. */ | |
3014 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3015 | ||
3016 | return zclient_send_message(zclient); | |
3017 | } | |
3018 | ||
3019 | /** | |
3020 | * Function to release a srv6-locator chunk | |
3021 | * | |
3022 | * @param zclient Zclient used to connect to table manager (zebra) | |
3023 | * @param locator_name Name of SRv6-locator | |
3024 | * @result 0 on success, -1 otherwise | |
3025 | */ | |
3026 | int srv6_manager_release_locator_chunk(struct zclient *zclient, | |
3027 | const char *locator_name) | |
3028 | { | |
3029 | struct stream *s; | |
3030 | const size_t len = strlen(locator_name); | |
3031 | ||
3032 | if (zclient_debug) | |
3033 | zlog_debug("Releasing SRv6-Locator Chunk %s", locator_name); | |
3034 | ||
3035 | if (zclient->sock < 0) | |
3036 | return -1; | |
3037 | ||
3038 | /* send request */ | |
3039 | s = zclient->obuf; | |
3040 | stream_reset(s); | |
3041 | zclient_create_header(s, ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK, | |
3042 | VRF_DEFAULT); | |
3043 | ||
f2867068 HS |
3044 | /* locator_name */ |
3045 | stream_putw(s, len); | |
3046 | stream_put(s, locator_name, len); | |
3047 | ||
3048 | /* Put length at the first point of the stream. */ | |
3049 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3050 | ||
3051 | return zclient_send_message(zclient); | |
3052 | } | |
3053 | ||
955bfd98 PZ |
3054 | /* |
3055 | * Asynchronous label chunk request | |
3056 | * | |
3057 | * @param zclient Zclient used to connect to label manager (zebra) | |
3058 | * @param keep Avoid garbage collection | |
3059 | * @param chunk_size Amount of labels requested | |
0e3b6a92 | 3060 | * @param base Base for the label chunk. if MPLS_LABEL_BASE_ANY we do not care |
955bfd98 PZ |
3061 | * @result 0 on success, -1 otherwise |
3062 | */ | |
7cfdb485 DS |
3063 | enum zclient_send_status zclient_send_get_label_chunk(struct zclient *zclient, |
3064 | uint8_t keep, | |
3065 | uint32_t chunk_size, | |
3066 | uint32_t base) | |
955bfd98 PZ |
3067 | { |
3068 | struct stream *s; | |
3069 | ||
3070 | if (zclient_debug) | |
3071 | zlog_debug("Getting Label Chunk"); | |
3072 | ||
3073 | if (zclient->sock < 0) | |
7cfdb485 | 3074 | return ZCLIENT_SEND_FAILURE; |
955bfd98 PZ |
3075 | |
3076 | s = zclient->obuf; | |
3077 | stream_reset(s); | |
3078 | ||
3079 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
5dffb0e9 FR |
3080 | /* proto */ |
3081 | stream_putc(s, zclient->redist_default); | |
3082 | /* instance */ | |
3083 | stream_putw(s, zclient->instance); | |
955bfd98 PZ |
3084 | stream_putc(s, keep); |
3085 | stream_putl(s, chunk_size); | |
0e3b6a92 | 3086 | stream_putl(s, base); |
955bfd98 PZ |
3087 | |
3088 | /* Put length at the first point of the stream. */ | |
3089 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3090 | ||
3091 | return zclient_send_message(zclient); | |
3092 | } | |
3093 | ||
fea12efb | 3094 | /** |
03bad95a | 3095 | * Function to request a label chunk in a synchronous way |
fea12efb | 3096 | * |
03bad95a | 3097 | * It first writes the request to zclient output buffer and then |
fea12efb | 3098 | * immediately reads the answer from the input buffer. |
3099 | * | |
3100 | * @param zclient Zclient used to connect to label manager (zebra) | |
3101 | * @param keep Avoid garbage collection | |
3102 | * @param chunk_size Amount of labels requested | |
3103 | * @param start To write first assigned chunk label to | |
3104 | * @param end To write last assigned chunk label to | |
3105 | * @result 0 on success, -1 otherwise | |
3106 | */ | |
0e3b6a92 | 3107 | int lm_get_label_chunk(struct zclient *zclient, uint8_t keep, uint32_t base, |
d62a17ae | 3108 | uint32_t chunk_size, uint32_t *start, uint32_t *end) |
fea12efb | 3109 | { |
d62a17ae | 3110 | int ret; |
3111 | struct stream *s; | |
d7c0a89a | 3112 | uint8_t response_keep; |
d62a17ae | 3113 | |
3114 | if (zclient_debug) | |
3115 | zlog_debug("Getting Label Chunk"); | |
3116 | ||
3117 | if (zclient->sock < 0) | |
3118 | return -1; | |
3119 | ||
3120 | /* send request */ | |
3121 | s = zclient->obuf; | |
3122 | stream_reset(s); | |
3123 | zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, VRF_DEFAULT); | |
5dffb0e9 FR |
3124 | /* proto */ |
3125 | stream_putc(s, zclient->redist_default); | |
3126 | /* instance */ | |
3127 | stream_putw(s, zclient->instance); | |
d62a17ae | 3128 | /* keep */ |
3129 | stream_putc(s, keep); | |
3130 | /* chunk size */ | |
3131 | stream_putl(s, chunk_size); | |
0e3b6a92 EDP |
3132 | /* requested chunk base */ |
3133 | stream_putl(s, base); | |
d62a17ae | 3134 | /* Put length at the first point of the stream. */ |
3135 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3136 | ||
3137 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
3138 | if (ret < 0) { | |
1c50c1c0 | 3139 | flog_err(EC_LIB_ZAPI_SOCKET, "Can't write to zclient sock"); |
d62a17ae | 3140 | close(zclient->sock); |
3141 | zclient->sock = -1; | |
3142 | return -1; | |
3143 | } | |
3144 | if (ret == 0) { | |
1c50c1c0 | 3145 | flog_err(EC_LIB_ZAPI_SOCKET, "Zclient sock closed"); |
d62a17ae | 3146 | close(zclient->sock); |
3147 | zclient->sock = -1; | |
3148 | return -1; | |
3149 | } | |
3150 | if (zclient_debug) | |
35cbe02a | 3151 | zlog_debug("Label chunk request (%d bytes) sent", ret); |
d62a17ae | 3152 | |
3153 | /* read response */ | |
3154 | if (zclient_read_sync_response(zclient, ZEBRA_GET_LABEL_CHUNK) != 0) | |
3155 | return -1; | |
3156 | ||
5dffb0e9 | 3157 | /* parse response */ |
d62a17ae | 3158 | s = zclient->ibuf; |
5dffb0e9 FR |
3159 | |
3160 | /* read proto and instance */ | |
efc7191b QY |
3161 | uint8_t proto; |
3162 | uint8_t instance; | |
3163 | ||
3164 | STREAM_GETC(s, proto); | |
3165 | STREAM_GETW(s, instance); | |
5dffb0e9 FR |
3166 | |
3167 | /* sanities */ | |
3168 | if (proto != zclient->redist_default) | |
450971aa | 3169 | flog_err(EC_LIB_ZAPI_ENCODE, |
1c50c1c0 QY |
3170 | "Wrong proto (%u) in get chunk response. Should be %u", |
3171 | proto, zclient->redist_default); | |
5dffb0e9 | 3172 | if (instance != zclient->instance) |
450971aa | 3173 | flog_err(EC_LIB_ZAPI_ENCODE, |
1c50c1c0 QY |
3174 | "Wrong instId (%u) in get chunk response Should be %u", |
3175 | instance, zclient->instance); | |
5dffb0e9 | 3176 | |
f004f7c3 EDP |
3177 | /* if we requested a specific chunk and it could not be allocated, the |
3178 | * response message will end here | |
3179 | */ | |
3180 | if (!STREAM_READABLE(s)) { | |
3181 | zlog_info("Unable to assign Label Chunk to %s instance %u", | |
3182 | zebra_route_string(proto), instance); | |
3183 | return -1; | |
3184 | } | |
3185 | ||
d62a17ae | 3186 | /* keep */ |
efc7191b | 3187 | STREAM_GETC(s, response_keep); |
d62a17ae | 3188 | /* start and end labels */ |
efc7191b QY |
3189 | STREAM_GETL(s, *start); |
3190 | STREAM_GETL(s, *end); | |
d62a17ae | 3191 | |
3192 | /* not owning this response */ | |
3193 | if (keep != response_keep) { | |
1c50c1c0 QY |
3194 | flog_err( |
3195 | EC_LIB_ZAPI_ENCODE, | |
3196 | "Invalid Label chunk: %u - %u, keeps mismatch %u != %u", | |
3197 | *start, *end, keep, response_keep); | |
d62a17ae | 3198 | } |
3199 | /* sanity */ | |
70e98a7f DS |
3200 | if (*start > *end || *start < MPLS_LABEL_UNRESERVED_MIN |
3201 | || *end > MPLS_LABEL_UNRESERVED_MAX) { | |
1c50c1c0 QY |
3202 | flog_err(EC_LIB_ZAPI_ENCODE, "Invalid Label chunk: %u - %u", |
3203 | *start, *end); | |
d62a17ae | 3204 | return -1; |
3205 | } | |
3206 | ||
3207 | if (zclient_debug) | |
35cbe02a | 3208 | zlog_debug("Label Chunk assign: %u - %u (%u)", *start, *end, |
d62a17ae | 3209 | response_keep); |
3210 | ||
3211 | return 0; | |
efc7191b QY |
3212 | |
3213 | stream_failure: | |
3214 | return -1; | |
fea12efb | 3215 | } |
3216 | ||
3217 | /** | |
3218 | * Function to release a label chunk | |
3219 | * | |
3220 | * @param zclient Zclient used to connect to label manager (zebra) | |
3221 | * @param start First label of chunk | |
3222 | * @param end Last label of chunk | |
3223 | * @result 0 on success, -1 otherwise | |
3224 | */ | |
d62a17ae | 3225 | int lm_release_label_chunk(struct zclient *zclient, uint32_t start, |
3226 | uint32_t end) | |
fea12efb | 3227 | { |
d62a17ae | 3228 | int ret; |
3229 | struct stream *s; | |
3230 | ||
3231 | if (zclient_debug) | |
35cbe02a | 3232 | zlog_debug("Releasing Label Chunk %u - %u", start, end); |
d62a17ae | 3233 | |
3234 | if (zclient->sock < 0) | |
3235 | return -1; | |
3236 | ||
3237 | /* send request */ | |
3238 | s = zclient->obuf; | |
3239 | stream_reset(s); | |
3240 | zclient_create_header(s, ZEBRA_RELEASE_LABEL_CHUNK, VRF_DEFAULT); | |
3241 | ||
5dffb0e9 FR |
3242 | /* proto */ |
3243 | stream_putc(s, zclient->redist_default); | |
3244 | /* instance */ | |
3245 | stream_putw(s, zclient->instance); | |
d62a17ae | 3246 | /* start */ |
3247 | stream_putl(s, start); | |
3248 | /* end */ | |
3249 | stream_putl(s, end); | |
3250 | ||
3251 | /* Put length at the first point of the stream. */ | |
3252 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3253 | ||
3254 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
3255 | if (ret < 0) { | |
450971aa | 3256 | flog_err(EC_LIB_ZAPI_SOCKET, "Can't write to zclient sock"); |
d62a17ae | 3257 | close(zclient->sock); |
3258 | zclient->sock = -1; | |
3259 | return -1; | |
3260 | } | |
3261 | if (ret == 0) { | |
1c50c1c0 | 3262 | flog_err(EC_LIB_ZAPI_SOCKET, "Zclient sock connection closed"); |
d62a17ae | 3263 | close(zclient->sock); |
3264 | zclient->sock = -1; | |
3265 | return -1; | |
3266 | } | |
3267 | ||
3268 | return 0; | |
fea12efb | 3269 | } |
c8e264b6 | 3270 | |
75fb51c1 | 3271 | /** |
03bad95a | 3272 | * Connect to table manager in a synchronous way |
75fb51c1 | 3273 | * |
03bad95a | 3274 | * It first writes the request to zclient output buffer and then |
75fb51c1 PG |
3275 | * immediately reads the answer from the input buffer. |
3276 | * | |
3277 | * @param zclient Zclient used to connect to table manager (zebra) | |
3278 | * @result Result of response | |
3279 | */ | |
3280 | int tm_table_manager_connect(struct zclient *zclient) | |
3281 | { | |
3282 | int ret; | |
3283 | struct stream *s; | |
3284 | uint8_t result; | |
3285 | ||
3286 | if (zclient_debug) | |
3287 | zlog_debug("Connecting to Table Manager"); | |
3288 | ||
3289 | if (zclient->sock < 0) | |
7cfdb485 | 3290 | return ZCLIENT_SEND_FAILURE; |
75fb51c1 PG |
3291 | |
3292 | /* send request */ | |
3293 | s = zclient->obuf; | |
3294 | stream_reset(s); | |
3295 | zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, VRF_DEFAULT); | |
3296 | ||
3297 | /* proto */ | |
3298 | stream_putc(s, zclient->redist_default); | |
3299 | /* instance */ | |
3300 | stream_putw(s, zclient->instance); | |
3301 | ||
3302 | /* Put length at the first point of the stream. */ | |
3303 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3304 | ||
3305 | ret = zclient_send_message(zclient); | |
7cfdb485 | 3306 | if (ret == ZCLIENT_SEND_FAILURE) |
75fb51c1 PG |
3307 | return -1; |
3308 | ||
3309 | if (zclient_debug) | |
0313523d | 3310 | zlog_debug("%s: Table manager connect request sent", __func__); |
75fb51c1 PG |
3311 | |
3312 | /* read response */ | |
3313 | if (zclient_read_sync_response(zclient, ZEBRA_TABLE_MANAGER_CONNECT) | |
3314 | != 0) | |
3315 | return -1; | |
3316 | ||
3317 | /* result */ | |
3318 | s = zclient->ibuf; | |
3319 | STREAM_GETC(s, result); | |
3320 | if (zclient_debug) | |
3321 | zlog_debug( | |
3322 | "%s: Table Manager connect response received, result %u", | |
3323 | __func__, result); | |
3324 | ||
3325 | return (int)result; | |
3326 | stream_failure: | |
6a2b0d9a | 3327 | return -1; |
75fb51c1 PG |
3328 | } |
3329 | ||
3330 | /** | |
03bad95a | 3331 | * Function to request a table chunk in a synchronous way |
75fb51c1 PG |
3332 | * |
3333 | * It first writes the request to zclient output buffer and then | |
3334 | * immediately reads the answer from the input buffer. | |
3335 | * | |
3336 | * @param zclient Zclient used to connect to table manager (zebra) | |
3337 | * @param chunk_size Amount of table requested | |
3338 | * @param start to write first assigned chunk table RT ID to | |
3339 | * @param end To write last assigned chunk table RT ID to | |
3340 | * @result 0 on success, -1 otherwise | |
3341 | */ | |
3342 | int tm_get_table_chunk(struct zclient *zclient, uint32_t chunk_size, | |
3343 | uint32_t *start, uint32_t *end) | |
3344 | { | |
3345 | int ret; | |
3346 | struct stream *s; | |
3347 | ||
3348 | if (zclient_debug) | |
3349 | zlog_debug("Getting Table Chunk"); | |
3350 | ||
3351 | if (zclient->sock < 0) | |
3352 | return -1; | |
3353 | ||
3354 | /* send request */ | |
3355 | s = zclient->obuf; | |
3356 | stream_reset(s); | |
3357 | zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, VRF_DEFAULT); | |
3358 | /* chunk size */ | |
3359 | stream_putl(s, chunk_size); | |
3360 | /* Put length at the first point of the stream. */ | |
3361 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3362 | ||
3363 | ret = writen(zclient->sock, s->data, stream_get_endp(s)); | |
3364 | if (ret < 0) { | |
1c50c1c0 QY |
3365 | flog_err(EC_LIB_ZAPI_SOCKET, "%s: can't write to zclient->sock", |
3366 | __func__); | |
75fb51c1 PG |
3367 | close(zclient->sock); |
3368 | zclient->sock = -1; | |
3369 | return -1; | |
3370 | } | |
3371 | if (ret == 0) { | |
450971aa | 3372 | flog_err(EC_LIB_ZAPI_SOCKET, |
1c50c1c0 | 3373 | "%s: zclient->sock connection closed", __func__); |
75fb51c1 PG |
3374 | close(zclient->sock); |
3375 | zclient->sock = -1; | |
3376 | return -1; | |
3377 | } | |
3378 | if (zclient_debug) | |
3379 | zlog_debug("%s: Table chunk request (%d bytes) sent", __func__, | |
3380 | ret); | |
3381 | ||
3382 | /* read response */ | |
3383 | if (zclient_read_sync_response(zclient, ZEBRA_GET_TABLE_CHUNK) != 0) | |
3384 | return -1; | |
3385 | ||
3386 | s = zclient->ibuf; | |
3387 | /* start and end table IDs */ | |
3388 | STREAM_GETL(s, *start); | |
3389 | STREAM_GETL(s, *end); | |
3390 | ||
3391 | if (zclient_debug) | |
3392 | zlog_debug("Table Chunk assign: %u - %u ", *start, *end); | |
3393 | ||
75fb51c1 | 3394 | return 0; |
6a2b0d9a RW |
3395 | stream_failure: |
3396 | return -1; | |
75fb51c1 PG |
3397 | } |
3398 | ||
3399 | /** | |
3400 | * Function to release a table chunk | |
3401 | * | |
3402 | * @param zclient Zclient used to connect to table manager (zebra) | |
3403 | * @param start First label of table | |
3404 | * @param end Last label of chunk | |
3405 | * @result 0 on success, -1 otherwise | |
3406 | */ | |
3407 | int tm_release_table_chunk(struct zclient *zclient, uint32_t start, | |
3408 | uint32_t end) | |
3409 | { | |
3410 | struct stream *s; | |
3411 | ||
3412 | if (zclient_debug) | |
3413 | zlog_debug("Releasing Table Chunk"); | |
3414 | ||
3415 | if (zclient->sock < 0) | |
3416 | return -1; | |
3417 | ||
3418 | /* send request */ | |
3419 | s = zclient->obuf; | |
3420 | stream_reset(s); | |
3421 | zclient_create_header(s, ZEBRA_RELEASE_TABLE_CHUNK, VRF_DEFAULT); | |
3422 | ||
3423 | /* start */ | |
3424 | stream_putl(s, start); | |
3425 | /* end */ | |
3426 | stream_putl(s, end); | |
3427 | ||
3428 | /* Put length at the first point of the stream. */ | |
3429 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3430 | ||
7cfdb485 DS |
3431 | if (zclient_send_message(zclient) == ZCLIENT_SEND_FAILURE) |
3432 | return -1; | |
3433 | ||
3434 | return 0; | |
75fb51c1 PG |
3435 | } |
3436 | ||
7cfdb485 DS |
3437 | enum zclient_send_status zebra_send_sr_policy(struct zclient *zclient, int cmd, |
3438 | struct zapi_sr_policy *zp) | |
31f937fb SM |
3439 | { |
3440 | if (zapi_sr_policy_encode(zclient->obuf, cmd, zp) < 0) | |
7cfdb485 | 3441 | return ZCLIENT_SEND_FAILURE; |
31f937fb SM |
3442 | return zclient_send_message(zclient); |
3443 | } | |
3444 | ||
3445 | int zapi_sr_policy_encode(struct stream *s, int cmd, struct zapi_sr_policy *zp) | |
3446 | { | |
3447 | struct zapi_srte_tunnel *zt = &zp->segment_list; | |
3448 | ||
3449 | stream_reset(s); | |
3450 | ||
3451 | zclient_create_header(s, cmd, VRF_DEFAULT); | |
3452 | stream_putl(s, zp->color); | |
3453 | stream_put_ipaddr(s, &zp->endpoint); | |
3454 | stream_write(s, &zp->name, SRTE_POLICY_NAME_MAX_LENGTH); | |
3455 | ||
3456 | stream_putc(s, zt->type); | |
3457 | stream_putl(s, zt->local_label); | |
3458 | ||
3459 | if (zt->label_num > MPLS_MAX_LABELS) { | |
3460 | flog_err(EC_LIB_ZAPI_ENCODE, | |
3461 | "%s: label %u: can't encode %u labels (maximum is %u)", | |
3462 | __func__, zt->local_label, zt->label_num, | |
3463 | MPLS_MAX_LABELS); | |
3464 | return -1; | |
3465 | } | |
3466 | stream_putw(s, zt->label_num); | |
3467 | ||
3468 | for (int i = 0; i < zt->label_num; i++) | |
3469 | stream_putl(s, zt->labels[i]); | |
3470 | ||
3471 | /* Put length at the first point of the stream. */ | |
3472 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3473 | ||
3474 | return 0; | |
3475 | } | |
3476 | ||
3477 | int zapi_sr_policy_decode(struct stream *s, struct zapi_sr_policy *zp) | |
3478 | { | |
3479 | memset(zp, 0, sizeof(*zp)); | |
3480 | ||
3481 | struct zapi_srte_tunnel *zt = &zp->segment_list; | |
3482 | ||
3483 | STREAM_GETL(s, zp->color); | |
3484 | STREAM_GET_IPADDR(s, &zp->endpoint); | |
3485 | STREAM_GET(&zp->name, s, SRTE_POLICY_NAME_MAX_LENGTH); | |
3486 | ||
3487 | /* segment list of active candidate path */ | |
3488 | STREAM_GETC(s, zt->type); | |
3489 | STREAM_GETL(s, zt->local_label); | |
3490 | STREAM_GETW(s, zt->label_num); | |
3491 | if (zt->label_num > MPLS_MAX_LABELS) { | |
3492 | flog_err(EC_LIB_ZAPI_ENCODE, | |
3493 | "%s: label %u: can't decode %u labels (maximum is %u)", | |
3494 | __func__, zt->local_label, zt->label_num, | |
3495 | MPLS_MAX_LABELS); | |
3496 | return -1; | |
3497 | } | |
3498 | for (int i = 0; i < zt->label_num; i++) | |
3499 | STREAM_GETL(s, zt->labels[i]); | |
3500 | ||
3501 | return 0; | |
3502 | ||
3503 | stream_failure: | |
3504 | return -1; | |
3505 | } | |
3506 | ||
3507 | int zapi_sr_policy_notify_status_decode(struct stream *s, | |
3508 | struct zapi_sr_policy *zp) | |
3509 | { | |
3510 | memset(zp, 0, sizeof(*zp)); | |
3511 | ||
3512 | STREAM_GETL(s, zp->color); | |
3513 | STREAM_GET_IPADDR(s, &zp->endpoint); | |
3514 | STREAM_GET(&zp->name, s, SRTE_POLICY_NAME_MAX_LENGTH); | |
3515 | STREAM_GETL(s, zp->status); | |
3516 | ||
3517 | return 0; | |
3518 | ||
3519 | stream_failure: | |
3520 | return -1; | |
3521 | } | |
3522 | ||
7cfdb485 DS |
3523 | enum zclient_send_status zebra_send_mpls_labels(struct zclient *zclient, |
3524 | int cmd, struct zapi_labels *zl) | |
bad6b0e7 RW |
3525 | { |
3526 | if (zapi_labels_encode(zclient->obuf, cmd, zl) < 0) | |
7cfdb485 | 3527 | return ZCLIENT_SEND_FAILURE; |
bad6b0e7 RW |
3528 | return zclient_send_message(zclient); |
3529 | } | |
3530 | ||
3531 | int zapi_labels_encode(struct stream *s, int cmd, struct zapi_labels *zl) | |
3532 | { | |
4945002d | 3533 | struct zapi_nexthop *znh; |
ea6b290b | 3534 | |
bad6b0e7 RW |
3535 | stream_reset(s); |
3536 | ||
3537 | zclient_create_header(s, cmd, VRF_DEFAULT); | |
b3c49d0e | 3538 | stream_putc(s, zl->message); |
bad6b0e7 | 3539 | stream_putc(s, zl->type); |
b3c49d0e RW |
3540 | stream_putl(s, zl->local_label); |
3541 | ||
3542 | if (CHECK_FLAG(zl->message, ZAPI_LABELS_FTN)) { | |
3543 | stream_putw(s, zl->route.prefix.family); | |
3544 | stream_put_prefix(s, &zl->route.prefix); | |
3545 | stream_putc(s, zl->route.type); | |
3546 | stream_putw(s, zl->route.instance); | |
3547 | } | |
3548 | ||
ea6b290b RW |
3549 | if (zl->nexthop_num > MULTIPATH_NUM) { |
3550 | flog_err( | |
3551 | EC_LIB_ZAPI_ENCODE, | |
3552 | "%s: label %u: can't encode %u nexthops (maximum is %u)", | |
3553 | __func__, zl->local_label, zl->nexthop_num, | |
3554 | MULTIPATH_NUM); | |
3555 | return -1; | |
3556 | } | |
3557 | stream_putw(s, zl->nexthop_num); | |
3558 | ||
3559 | for (int i = 0; i < zl->nexthop_num; i++) { | |
3560 | znh = &zl->nexthops[i]; | |
3561 | ||
31f937fb | 3562 | if (zapi_nexthop_encode(s, znh, 0, 0) < 0) |
4945002d | 3563 | return -1; |
bad6b0e7 | 3564 | } |
bad6b0e7 | 3565 | |
34f86754 MS |
3566 | if (CHECK_FLAG(zl->message, ZAPI_LABELS_HAS_BACKUPS)) { |
3567 | ||
3568 | if (zl->backup_nexthop_num > MULTIPATH_NUM) { | |
3569 | flog_err( | |
3570 | EC_LIB_ZAPI_ENCODE, | |
3571 | "%s: label %u: can't encode %u nexthops (maximum is %u)", | |
3572 | __func__, zl->local_label, zl->nexthop_num, | |
3573 | MULTIPATH_NUM); | |
3574 | return -1; | |
3575 | } | |
3576 | stream_putw(s, zl->backup_nexthop_num); | |
3577 | ||
3578 | for (int i = 0; i < zl->backup_nexthop_num; i++) { | |
3579 | znh = &zl->backup_nexthops[i]; | |
3580 | ||
31f937fb | 3581 | if (zapi_nexthop_encode(s, znh, 0, 0) < 0) |
34f86754 MS |
3582 | return -1; |
3583 | } | |
3584 | ||
3585 | } | |
3586 | ||
bad6b0e7 RW |
3587 | /* Put length at the first point of the stream. */ |
3588 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3589 | ||
3590 | return 0; | |
3591 | } | |
3592 | ||
3593 | int zapi_labels_decode(struct stream *s, struct zapi_labels *zl) | |
3594 | { | |
4945002d | 3595 | struct zapi_nexthop *znh; |
ea6b290b | 3596 | |
bad6b0e7 RW |
3597 | memset(zl, 0, sizeof(*zl)); |
3598 | ||
3599 | /* Get data. */ | |
b3c49d0e | 3600 | STREAM_GETC(s, zl->message); |
bad6b0e7 | 3601 | STREAM_GETC(s, zl->type); |
b3c49d0e | 3602 | STREAM_GETL(s, zl->local_label); |
bad6b0e7 | 3603 | |
b3c49d0e RW |
3604 | if (CHECK_FLAG(zl->message, ZAPI_LABELS_FTN)) { |
3605 | size_t psize; | |
3606 | ||
3607 | STREAM_GETW(s, zl->route.prefix.family); | |
3608 | STREAM_GETC(s, zl->route.prefix.prefixlen); | |
3609 | ||
3610 | psize = PSIZE(zl->route.prefix.prefixlen); | |
3611 | switch (zl->route.prefix.family) { | |
3612 | case AF_INET: | |
3613 | if (zl->route.prefix.prefixlen > IPV4_MAX_BITLEN) { | |
3614 | zlog_debug( | |
3615 | "%s: Specified prefix length %d is greater than a v4 address can support", | |
15569c58 | 3616 | __func__, zl->route.prefix.prefixlen); |
b3c49d0e RW |
3617 | return -1; |
3618 | } | |
3619 | STREAM_GET(&zl->route.prefix.u.prefix4.s_addr, s, | |
3620 | psize); | |
3621 | break; | |
3622 | case AF_INET6: | |
3623 | if (zl->route.prefix.prefixlen > IPV6_MAX_BITLEN) { | |
3624 | zlog_debug( | |
3625 | "%s: Specified prefix length %d is greater than a v6 address can support", | |
15569c58 | 3626 | __func__, zl->route.prefix.prefixlen); |
b3c49d0e RW |
3627 | return -1; |
3628 | } | |
3629 | STREAM_GET(&zl->route.prefix.u.prefix6, s, psize); | |
3630 | break; | |
3631 | default: | |
3632 | flog_err(EC_LIB_ZAPI_ENCODE, | |
3633 | "%s: Specified family %u is not v4 or v6", | |
15569c58 | 3634 | __func__, zl->route.prefix.family); |
bad6b0e7 RW |
3635 | return -1; |
3636 | } | |
b3c49d0e RW |
3637 | |
3638 | STREAM_GETC(s, zl->route.type); | |
3639 | STREAM_GETW(s, zl->route.instance); | |
3640 | } | |
3641 | ||
ea6b290b | 3642 | STREAM_GETW(s, zl->nexthop_num); |
b900b3c6 QY |
3643 | |
3644 | if (zl->nexthop_num > MULTIPATH_NUM) { | |
3645 | flog_warn( | |
3646 | EC_LIB_ZAPI_ENCODE, | |
3647 | "%s: Prefix %pFX has %d nexthops, but we can only use the first %d", | |
3648 | __func__, &zl->route.prefix, zl->nexthop_num, | |
3649 | MULTIPATH_NUM); | |
3650 | } | |
3651 | ||
3652 | zl->nexthop_num = MIN(MULTIPATH_NUM, zl->nexthop_num); | |
3653 | ||
ea6b290b RW |
3654 | for (int i = 0; i < zl->nexthop_num; i++) { |
3655 | znh = &zl->nexthops[i]; | |
3656 | ||
31f937fb | 3657 | if (zapi_nexthop_decode(s, znh, 0, 0) < 0) |
4945002d | 3658 | return -1; |
b7457b40 DS |
3659 | |
3660 | if (znh->type == NEXTHOP_TYPE_BLACKHOLE) { | |
3661 | flog_warn( | |
3662 | EC_LIB_ZAPI_ENCODE, | |
3663 | "%s: Prefix %pFX has a blackhole nexthop which we cannot use for a label", | |
3664 | __func__, &zl->route.prefix); | |
3665 | return -1; | |
3666 | } | |
bad6b0e7 | 3667 | } |
bad6b0e7 | 3668 | |
34f86754 MS |
3669 | if (CHECK_FLAG(zl->message, ZAPI_LABELS_HAS_BACKUPS)) { |
3670 | STREAM_GETW(s, zl->backup_nexthop_num); | |
3671 | ||
3672 | if (zl->backup_nexthop_num > MULTIPATH_NUM) { | |
3673 | flog_warn( | |
3674 | EC_LIB_ZAPI_ENCODE, | |
3675 | "%s: Prefix %pFX has %d backup nexthops, but we can only use the first %d", | |
3676 | __func__, &zl->route.prefix, | |
3677 | zl->backup_nexthop_num, MULTIPATH_NUM); | |
3678 | } | |
3679 | ||
3680 | zl->backup_nexthop_num = MIN(MULTIPATH_NUM, | |
3681 | zl->backup_nexthop_num); | |
3682 | ||
3683 | for (int i = 0; i < zl->backup_nexthop_num; i++) { | |
3684 | znh = &zl->backup_nexthops[i]; | |
3685 | ||
31f937fb | 3686 | if (zapi_nexthop_decode(s, znh, 0, 0) < 0) |
34f86754 | 3687 | return -1; |
b7457b40 DS |
3688 | |
3689 | if (znh->type == NEXTHOP_TYPE_BLACKHOLE) { | |
3690 | flog_warn( | |
3691 | EC_LIB_ZAPI_ENCODE, | |
3692 | "%s: Prefix %pFX has a backup blackhole nexthop which we cannot use for a label", | |
3693 | __func__, &zl->route.prefix); | |
3694 | return -1; | |
3695 | } | |
34f86754 MS |
3696 | } |
3697 | } | |
3698 | ||
bad6b0e7 RW |
3699 | return 0; |
3700 | stream_failure: | |
3701 | return -1; | |
3702 | } | |
75fb51c1 | 3703 | |
7cfdb485 DS |
3704 | enum zclient_send_status zebra_send_pw(struct zclient *zclient, int command, |
3705 | struct zapi_pw *pw) | |
6833ae01 | 3706 | { |
3707 | struct stream *s; | |
3708 | ||
3709 | /* Reset stream. */ | |
3710 | s = zclient->obuf; | |
3711 | stream_reset(s); | |
3712 | ||
3713 | zclient_create_header(s, command, VRF_DEFAULT); | |
3682bd90 | 3714 | stream_write(s, pw->ifname, INTERFACE_NAMSIZ); |
6833ae01 | 3715 | stream_putl(s, pw->ifindex); |
3716 | ||
3717 | /* Put type */ | |
3718 | stream_putl(s, pw->type); | |
3719 | ||
3720 | /* Put nexthop */ | |
3721 | stream_putl(s, pw->af); | |
3722 | switch (pw->af) { | |
3723 | case AF_INET: | |
3724 | stream_put_in_addr(s, &pw->nexthop.ipv4); | |
3725 | break; | |
3726 | case AF_INET6: | |
d7c0a89a | 3727 | stream_write(s, (uint8_t *)&pw->nexthop.ipv6, 16); |
6833ae01 | 3728 | break; |
3729 | default: | |
1c50c1c0 | 3730 | flog_err(EC_LIB_ZAPI_ENCODE, "%s: unknown af", __func__); |
7cfdb485 | 3731 | return ZCLIENT_SEND_FAILURE; |
6833ae01 | 3732 | } |
3733 | ||
3734 | /* Put labels */ | |
3735 | stream_putl(s, pw->local_label); | |
3736 | stream_putl(s, pw->remote_label); | |
3737 | ||
3738 | /* Put flags */ | |
3739 | stream_putc(s, pw->flags); | |
3740 | ||
3741 | /* Protocol specific fields */ | |
3742 | stream_write(s, &pw->data, sizeof(union pw_protocol_fields)); | |
3743 | ||
3744 | /* Put length at the first point of the stream. */ | |
3745 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3746 | ||
3747 | return zclient_send_message(zclient); | |
3748 | } | |
3749 | ||
3750 | /* | |
3751 | * Receive PW status update from Zebra and send it to LDE process. | |
3752 | */ | |
efc7191b | 3753 | int zebra_read_pw_status_update(ZAPI_CALLBACK_ARGS, struct zapi_pw_status *pw) |
6833ae01 | 3754 | { |
3755 | struct stream *s; | |
3756 | ||
3757 | memset(pw, 0, sizeof(struct zapi_pw_status)); | |
3758 | s = zclient->ibuf; | |
3759 | ||
3760 | /* Get data. */ | |
3682bd90 | 3761 | stream_get(pw->ifname, s, INTERFACE_NAMSIZ); |
efc7191b QY |
3762 | STREAM_GETL(s, pw->ifindex); |
3763 | STREAM_GETL(s, pw->status); | |
3764 | ||
3765 | return 0; | |
3766 | stream_failure: | |
3767 | return -1; | |
6833ae01 | 3768 | } |
3769 | ||
a243d1db | 3770 | static int zclient_capability_decode(ZAPI_CALLBACK_ARGS) |
09924cff DS |
3771 | { |
3772 | struct zclient_capabilities cap; | |
3773 | struct stream *s = zclient->ibuf; | |
bb6b7f79 | 3774 | int vrf_backend; |
09924cff DS |
3775 | uint8_t mpls_enabled; |
3776 | ||
bb6b7f79 | 3777 | STREAM_GETL(s, vrf_backend); |
7239d3d9 QY |
3778 | |
3779 | if (vrf_backend < 0 || vrf_configure_backend(vrf_backend)) { | |
3780 | flog_err(EC_LIB_ZAPI_ENCODE, | |
1d5453d6 | 3781 | "%s: Garbage VRF backend type: %d", __func__, |
7239d3d9 QY |
3782 | vrf_backend); |
3783 | goto stream_failure; | |
3784 | } | |
3785 | ||
bb6b7f79 | 3786 | |
09924cff DS |
3787 | memset(&cap, 0, sizeof(cap)); |
3788 | STREAM_GETC(s, mpls_enabled); | |
3789 | cap.mpls_enabled = !!mpls_enabled; | |
3790 | STREAM_GETL(s, cap.ecmp); | |
02c0866d | 3791 | STREAM_GETC(s, cap.role); |
09924cff DS |
3792 | |
3793 | if (zclient->zebra_capabilities) | |
3794 | (*zclient->zebra_capabilities)(&cap); | |
3795 | ||
3796 | stream_failure: | |
a243d1db | 3797 | return 0; |
09924cff DS |
3798 | } |
3799 | ||
7cfdb485 DS |
3800 | enum zclient_send_status zclient_send_mlag_register(struct zclient *client, |
3801 | uint32_t bit_map) | |
36b5b98f SK |
3802 | { |
3803 | struct stream *s; | |
3804 | ||
3805 | s = client->obuf; | |
3806 | stream_reset(s); | |
3807 | ||
3808 | zclient_create_header(s, ZEBRA_MLAG_CLIENT_REGISTER, VRF_DEFAULT); | |
3809 | stream_putl(s, bit_map); | |
3810 | ||
3811 | stream_putw_at(s, 0, stream_get_endp(s)); | |
db71415b | 3812 | return zclient_send_message(client); |
36b5b98f SK |
3813 | } |
3814 | ||
7cfdb485 | 3815 | enum zclient_send_status zclient_send_mlag_deregister(struct zclient *client) |
36b5b98f | 3816 | { |
4df9d859 HS |
3817 | return zebra_message_send(client, ZEBRA_MLAG_CLIENT_UNREGISTER, |
3818 | VRF_DEFAULT); | |
36b5b98f SK |
3819 | } |
3820 | ||
7cfdb485 DS |
3821 | enum zclient_send_status zclient_send_mlag_data(struct zclient *client, |
3822 | struct stream *client_s) | |
36b5b98f SK |
3823 | { |
3824 | struct stream *s; | |
3825 | ||
3826 | s = client->obuf; | |
3827 | stream_reset(s); | |
3828 | ||
3829 | zclient_create_header(s, ZEBRA_MLAG_FORWARD_MSG, VRF_DEFAULT); | |
3830 | stream_put(s, client_s->data, client_s->endp); | |
3831 | ||
3832 | stream_putw_at(s, 0, stream_get_endp(s)); | |
db71415b | 3833 | return zclient_send_message(client); |
36b5b98f SK |
3834 | } |
3835 | ||
ff491140 MS |
3836 | /* |
3837 | * Send an OPAQUE message, contents opaque to zebra. The message header | |
3838 | * is a message subtype. | |
3839 | */ | |
7cfdb485 DS |
3840 | enum zclient_send_status zclient_send_opaque(struct zclient *zclient, |
3841 | uint32_t type, const uint8_t *data, | |
3842 | size_t datasize) | |
ff491140 | 3843 | { |
ff491140 | 3844 | struct stream *s; |
387831ff | 3845 | uint16_t flags = 0; |
ff491140 MS |
3846 | |
3847 | /* Check buffer size */ | |
3848 | if (STREAM_SIZE(zclient->obuf) < | |
3849 | (ZEBRA_HEADER_SIZE + sizeof(type) + datasize)) | |
7cfdb485 | 3850 | return ZCLIENT_SEND_FAILURE; |
ff491140 MS |
3851 | |
3852 | s = zclient->obuf; | |
3853 | stream_reset(s); | |
3854 | ||
3855 | zclient_create_header(s, ZEBRA_OPAQUE_MESSAGE, VRF_DEFAULT); | |
3856 | ||
387831ff | 3857 | /* Send sub-type and flags */ |
ff491140 | 3858 | stream_putl(s, type); |
387831ff | 3859 | stream_putw(s, flags); |
ff491140 MS |
3860 | |
3861 | /* Send opaque data */ | |
3862 | stream_write(s, data, datasize); | |
3863 | ||
3864 | /* Put length into the header at the start of the stream. */ | |
3865 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3866 | ||
db71415b | 3867 | return zclient_send_message(zclient); |
ff491140 MS |
3868 | } |
3869 | ||
387831ff MS |
3870 | /* |
3871 | * Send an OPAQUE message to a specific zclient. The contents are opaque | |
3872 | * to zebra. | |
3873 | */ | |
7cfdb485 DS |
3874 | enum zclient_send_status |
3875 | zclient_send_opaque_unicast(struct zclient *zclient, uint32_t type, | |
3876 | uint8_t proto, uint16_t instance, | |
3877 | uint32_t session_id, const uint8_t *data, | |
3878 | size_t datasize) | |
387831ff | 3879 | { |
387831ff MS |
3880 | struct stream *s; |
3881 | uint16_t flags = 0; | |
3882 | ||
3883 | /* Check buffer size */ | |
3884 | if (STREAM_SIZE(zclient->obuf) < | |
3885 | (ZEBRA_HEADER_SIZE + sizeof(struct zapi_opaque_msg) + datasize)) | |
7cfdb485 | 3886 | return ZCLIENT_SEND_FAILURE; |
387831ff MS |
3887 | |
3888 | s = zclient->obuf; | |
3889 | stream_reset(s); | |
3890 | ||
3891 | zclient_create_header(s, ZEBRA_OPAQUE_MESSAGE, VRF_DEFAULT); | |
3892 | ||
3893 | /* Send sub-type and flags */ | |
3894 | SET_FLAG(flags, ZAPI_OPAQUE_FLAG_UNICAST); | |
3895 | stream_putl(s, type); | |
3896 | stream_putw(s, flags); | |
3897 | ||
3898 | /* Send destination client info */ | |
3899 | stream_putc(s, proto); | |
3900 | stream_putw(s, instance); | |
3901 | stream_putl(s, session_id); | |
3902 | ||
3903 | /* Send opaque data */ | |
3904 | stream_write(s, data, datasize); | |
3905 | ||
3906 | /* Put length into the header at the start of the stream. */ | |
3907 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3908 | ||
db71415b | 3909 | return zclient_send_message(zclient); |
387831ff MS |
3910 | } |
3911 | ||
3912 | /* | |
3913 | * Decode incoming opaque message into info struct | |
3914 | */ | |
3915 | int zclient_opaque_decode(struct stream *s, struct zapi_opaque_msg *info) | |
3916 | { | |
3917 | memset(info, 0, sizeof(*info)); | |
3918 | ||
3919 | /* Decode subtype and flags */ | |
3920 | STREAM_GETL(s, info->type); | |
3921 | STREAM_GETW(s, info->flags); | |
3922 | ||
3923 | /* Decode unicast client info if present */ | |
3924 | if (CHECK_FLAG(info->flags, ZAPI_OPAQUE_FLAG_UNICAST)) { | |
3925 | STREAM_GETC(s, info->proto); | |
3926 | STREAM_GETW(s, info->instance); | |
3927 | STREAM_GETL(s, info->session_id); | |
3928 | } | |
3929 | ||
3930 | info->len = STREAM_READABLE(s); | |
3931 | ||
3932 | return 0; | |
3933 | ||
3934 | stream_failure: | |
3935 | ||
3936 | return -1; | |
3937 | } | |
3938 | ||
ff491140 MS |
3939 | /* |
3940 | * Send a registration request for opaque messages with a specified subtype. | |
3941 | */ | |
7cfdb485 DS |
3942 | enum zclient_send_status zclient_register_opaque(struct zclient *zclient, |
3943 | uint32_t type) | |
ff491140 | 3944 | { |
ff491140 MS |
3945 | struct stream *s; |
3946 | ||
3947 | s = zclient->obuf; | |
3948 | stream_reset(s); | |
3949 | ||
3950 | zclient_create_header(s, ZEBRA_OPAQUE_REGISTER, VRF_DEFAULT); | |
3951 | ||
3952 | /* Send sub-type */ | |
3953 | stream_putl(s, type); | |
3954 | ||
3955 | /* Add zclient info */ | |
3956 | stream_putc(s, zclient->redist_default); | |
3957 | stream_putw(s, zclient->instance); | |
3958 | stream_putl(s, zclient->session_id); | |
3959 | ||
3960 | /* Put length at the first point of the stream. */ | |
3961 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3962 | ||
db71415b | 3963 | return zclient_send_message(zclient); |
ff491140 MS |
3964 | } |
3965 | ||
3966 | /* | |
3967 | * Send an un-registration request for a specified opaque subtype. | |
3968 | */ | |
7cfdb485 DS |
3969 | enum zclient_send_status zclient_unregister_opaque(struct zclient *zclient, |
3970 | uint32_t type) | |
ff491140 | 3971 | { |
ff491140 MS |
3972 | struct stream *s; |
3973 | ||
3974 | s = zclient->obuf; | |
3975 | stream_reset(s); | |
3976 | ||
3977 | zclient_create_header(s, ZEBRA_OPAQUE_UNREGISTER, VRF_DEFAULT); | |
3978 | ||
3979 | /* Send sub-type */ | |
3980 | stream_putl(s, type); | |
3981 | ||
3982 | /* Add zclient info */ | |
3983 | stream_putc(s, zclient->redist_default); | |
3984 | stream_putw(s, zclient->instance); | |
3985 | stream_putl(s, zclient->session_id); | |
3986 | ||
3987 | /* Put length at the first point of the stream. */ | |
3988 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3989 | ||
db71415b | 3990 | return zclient_send_message(zclient); |
ff491140 MS |
3991 | } |
3992 | ||
d2ddc141 | 3993 | /* Utility to decode opaque registration info */ |
387831ff | 3994 | int zapi_opaque_reg_decode(struct stream *s, struct zapi_opaque_reg_info *info) |
ff491140 MS |
3995 | { |
3996 | STREAM_GETL(s, info->type); | |
3997 | STREAM_GETC(s, info->proto); | |
3998 | STREAM_GETW(s, info->instance); | |
3999 | STREAM_GETL(s, info->session_id); | |
4000 | ||
4001 | return 0; | |
4002 | ||
4003 | stream_failure: | |
4004 | ||
4005 | return -1; | |
4006 | } | |
4007 | ||
581e797e KS |
4008 | /* Utility to decode client close notify info */ |
4009 | int zapi_client_close_notify_decode(struct stream *s, | |
4010 | struct zapi_client_close_info *info) | |
4011 | { | |
4012 | memset(info, 0, sizeof(*info)); | |
4013 | ||
4014 | STREAM_GETC(s, info->proto); | |
4015 | STREAM_GETW(s, info->instance); | |
4016 | STREAM_GETL(s, info->session_id); | |
4017 | ||
4018 | return 0; | |
4019 | ||
4020 | stream_failure: | |
4021 | ||
4022 | return -1; | |
4023 | } | |
4024 | ||
a243d1db DL |
4025 | static zclient_handler *const lib_handlers[] = { |
4026 | /* fundamentals */ | |
4027 | [ZEBRA_CAPABILITIES] = zclient_capability_decode, | |
4028 | [ZEBRA_ERROR] = zclient_handle_error, | |
4029 | ||
4030 | /* VRF & interface code is shared in lib */ | |
4031 | [ZEBRA_VRF_ADD] = zclient_vrf_add, | |
4032 | [ZEBRA_VRF_DELETE] = zclient_vrf_delete, | |
4033 | [ZEBRA_INTERFACE_ADD] = zclient_interface_add, | |
4034 | [ZEBRA_INTERFACE_DELETE] = zclient_interface_delete, | |
4035 | [ZEBRA_INTERFACE_UP] = zclient_interface_up, | |
4036 | [ZEBRA_INTERFACE_DOWN] = zclient_interface_down, | |
4037 | ||
4038 | /* BFD */ | |
3e51a84a | 4039 | [ZEBRA_BFD_DEST_REPLAY] = zclient_bfd_session_replay, |
a243d1db DL |
4040 | [ZEBRA_INTERFACE_BFD_DEST_UPDATE] = zclient_bfd_session_update, |
4041 | }; | |
4042 | ||
718e3744 | 4043 | /* Zebra client message read function. */ |
cc9f21da | 4044 | static void zclient_read(struct thread *thread) |
718e3744 | 4045 | { |
d62a17ae | 4046 | size_t already; |
4047 | uint16_t length, command; | |
4048 | uint8_t marker, version; | |
4049 | vrf_id_t vrf_id; | |
4050 | struct zclient *zclient; | |
4051 | ||
4052 | /* Get socket to zebra. */ | |
4053 | zclient = THREAD_ARG(thread); | |
4054 | zclient->t_read = NULL; | |
4055 | ||
4056 | /* Read zebra header (if we don't have it already). */ | |
0e2d7076 DA |
4057 | already = stream_get_endp(zclient->ibuf); |
4058 | if (already < ZEBRA_HEADER_SIZE) { | |
d62a17ae | 4059 | ssize_t nbyte; |
4060 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
4061 | ZEBRA_HEADER_SIZE - already)) | |
4062 | == 0) | |
4063 | || (nbyte == -1)) { | |
4064 | if (zclient_debug) | |
4065 | zlog_debug( | |
4066 | "zclient connection closed socket [%d].", | |
4067 | zclient->sock); | |
cc9f21da DS |
4068 | zclient_failed(zclient); |
4069 | return; | |
d62a17ae | 4070 | } |
4071 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE - already)) { | |
d62a17ae | 4072 | zclient_event(ZCLIENT_READ, zclient); |
cc9f21da | 4073 | return; |
d62a17ae | 4074 | } |
4075 | already = ZEBRA_HEADER_SIZE; | |
634f9ea2 | 4076 | } |
d62a17ae | 4077 | |
4078 | /* Reset to read from the beginning of the incoming packet. */ | |
4079 | stream_set_getp(zclient->ibuf, 0); | |
4080 | ||
4081 | /* Fetch header values. */ | |
4082 | length = stream_getw(zclient->ibuf); | |
4083 | marker = stream_getc(zclient->ibuf); | |
4084 | version = stream_getc(zclient->ibuf); | |
a9ff90c4 | 4085 | vrf_id = stream_getl(zclient->ibuf); |
d62a17ae | 4086 | command = stream_getw(zclient->ibuf); |
4087 | ||
4088 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) { | |
1c50c1c0 QY |
4089 | flog_err( |
4090 | EC_LIB_ZAPI_MISSMATCH, | |
4091 | "%s: socket %d version mismatch, marker %d, version %d", | |
4092 | __func__, zclient->sock, marker, version); | |
cc9f21da DS |
4093 | zclient_failed(zclient); |
4094 | return; | |
634f9ea2 | 4095 | } |
d62a17ae | 4096 | |
4097 | if (length < ZEBRA_HEADER_SIZE) { | |
450971aa | 4098 | flog_err(EC_LIB_ZAPI_MISSMATCH, |
1c50c1c0 QY |
4099 | "%s: socket %d message length %u is less than %d ", |
4100 | __func__, zclient->sock, length, ZEBRA_HEADER_SIZE); | |
cc9f21da DS |
4101 | zclient_failed(zclient); |
4102 | return; | |
634f9ea2 | 4103 | } |
d62a17ae | 4104 | |
4105 | /* Length check. */ | |
4106 | if (length > STREAM_SIZE(zclient->ibuf)) { | |
4107 | struct stream *ns; | |
ade6974d | 4108 | flog_err( |
450971aa | 4109 | EC_LIB_ZAPI_ENCODE, |
ade6974d QY |
4110 | "%s: message size %u exceeds buffer size %lu, expanding...", |
4111 | __func__, length, | |
4112 | (unsigned long)STREAM_SIZE(zclient->ibuf)); | |
d62a17ae | 4113 | ns = stream_new(length); |
4114 | stream_copy(ns, zclient->ibuf); | |
4115 | stream_free(zclient->ibuf); | |
4116 | zclient->ibuf = ns; | |
4117 | } | |
4118 | ||
4119 | /* Read rest of zebra packet. */ | |
4120 | if (already < length) { | |
4121 | ssize_t nbyte; | |
4122 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
4123 | length - already)) | |
4124 | == 0) | |
4125 | || (nbyte == -1)) { | |
4126 | if (zclient_debug) | |
4127 | zlog_debug( | |
4128 | "zclient connection closed socket [%d].", | |
4129 | zclient->sock); | |
cc9f21da DS |
4130 | zclient_failed(zclient); |
4131 | return; | |
d62a17ae | 4132 | } |
4133 | if (nbyte != (ssize_t)(length - already)) { | |
4134 | /* Try again later. */ | |
4135 | zclient_event(ZCLIENT_READ, zclient); | |
cc9f21da | 4136 | return; |
d62a17ae | 4137 | } |
4138 | } | |
4139 | ||
4140 | length -= ZEBRA_HEADER_SIZE; | |
4141 | ||
4142 | if (zclient_debug) | |
461d106d RW |
4143 | zlog_debug("zclient %p command %s VRF %u", zclient, |
4144 | zserv_command_string(command), vrf_id); | |
d62a17ae | 4145 | |
a243d1db DL |
4146 | if (command < array_size(lib_handlers) && lib_handlers[command]) |
4147 | lib_handlers[command](command, zclient, length, vrf_id); | |
4148 | if (command < zclient->n_handlers && zclient->handlers[command]) | |
4149 | zclient->handlers[command](command, zclient, length, vrf_id); | |
d62a17ae | 4150 | |
4151 | if (zclient->sock < 0) | |
4152 | /* Connection was closed during packet processing. */ | |
cc9f21da | 4153 | return; |
d62a17ae | 4154 | |
4155 | /* Register read thread. */ | |
4156 | stream_reset(zclient->ibuf); | |
4157 | zclient_event(ZCLIENT_READ, zclient); | |
718e3744 | 4158 | } |
4159 | ||
d62a17ae | 4160 | void zclient_redistribute(int command, struct zclient *zclient, afi_t afi, |
d7c0a89a | 4161 | int type, unsigned short instance, vrf_id_t vrf_id) |
718e3744 | 4162 | { |
718e3744 | 4163 | |
d62a17ae | 4164 | if (instance) { |
4165 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
4166 | if (redist_check_instance( | |
4167 | &zclient->mi_redist[afi][type], instance)) | |
4168 | return; | |
4169 | redist_add_instance(&zclient->mi_redist[afi][type], | |
4170 | instance); | |
4171 | } else { | |
4172 | if (!redist_check_instance( | |
4173 | &zclient->mi_redist[afi][type], instance)) | |
4174 | return; | |
4175 | redist_del_instance(&zclient->mi_redist[afi][type], | |
4176 | instance); | |
4177 | } | |
4178 | ||
4179 | } else { | |
4180 | if (command == ZEBRA_REDISTRIBUTE_ADD) { | |
4181 | if (vrf_bitmap_check(zclient->redist[afi][type], | |
4182 | vrf_id)) | |
4183 | return; | |
4184 | vrf_bitmap_set(zclient->redist[afi][type], vrf_id); | |
4185 | } else { | |
4186 | if (!vrf_bitmap_check(zclient->redist[afi][type], | |
4187 | vrf_id)) | |
4188 | return; | |
4189 | vrf_bitmap_unset(zclient->redist[afi][type], vrf_id); | |
4190 | } | |
4191 | } | |
4192 | ||
4193 | if (zclient->sock > 0) | |
4194 | zebra_redistribute_send(command, zclient, afi, type, instance, | |
4195 | vrf_id); | |
718e3744 | 4196 | } |
4197 | ||
718e3744 | 4198 | |
d62a17ae | 4199 | void zclient_redistribute_default(int command, struct zclient *zclient, |
49db7a7b | 4200 | afi_t afi, vrf_id_t vrf_id) |
718e3744 | 4201 | { |
718e3744 | 4202 | |
d62a17ae | 4203 | if (command == ZEBRA_REDISTRIBUTE_DEFAULT_ADD) { |
49db7a7b | 4204 | if (vrf_bitmap_check(zclient->default_information[afi], vrf_id)) |
d62a17ae | 4205 | return; |
49db7a7b | 4206 | vrf_bitmap_set(zclient->default_information[afi], vrf_id); |
d62a17ae | 4207 | } else { |
49db7a7b RW |
4208 | if (!vrf_bitmap_check(zclient->default_information[afi], |
4209 | vrf_id)) | |
d62a17ae | 4210 | return; |
49db7a7b | 4211 | vrf_bitmap_unset(zclient->default_information[afi], vrf_id); |
d62a17ae | 4212 | } |
4213 | ||
4214 | if (zclient->sock > 0) | |
49db7a7b | 4215 | zebra_redistribute_default_send(command, zclient, afi, vrf_id); |
718e3744 | 4216 | } |
4217 | ||
91f2045d | 4218 | static void zclient_event(enum zclient_event event, struct zclient *zclient) |
718e3744 | 4219 | { |
d62a17ae | 4220 | switch (event) { |
4221 | case ZCLIENT_SCHEDULE: | |
4222 | thread_add_event(zclient->master, zclient_connect, zclient, 0, | |
4223 | &zclient->t_connect); | |
4224 | break; | |
4225 | case ZCLIENT_CONNECT: | |
4226 | if (zclient_debug) | |
4227 | zlog_debug( | |
4228 | "zclient connect failures: %d schedule interval is now %d", | |
4229 | zclient->fail, zclient->fail < 3 ? 10 : 60); | |
4230 | thread_add_timer(zclient->master, zclient_connect, zclient, | |
4231 | zclient->fail < 3 ? 10 : 60, | |
4232 | &zclient->t_connect); | |
4233 | break; | |
4234 | case ZCLIENT_READ: | |
4235 | zclient->t_read = NULL; | |
4236 | thread_add_read(zclient->master, zclient_read, zclient, | |
4237 | zclient->sock, &zclient->t_read); | |
4238 | break; | |
4239 | } | |
718e3744 | 4240 | } |
b5114685 | 4241 | |
7cfdb485 DS |
4242 | enum zclient_send_status zclient_interface_set_master(struct zclient *client, |
4243 | struct interface *master, | |
4244 | struct interface *slave) | |
e0ae31b8 DS |
4245 | { |
4246 | struct stream *s; | |
4247 | ||
4248 | s = client->obuf; | |
4249 | stream_reset(s); | |
4250 | ||
096f7609 IR |
4251 | zclient_create_header(s, ZEBRA_INTERFACE_SET_MASTER, |
4252 | master->vrf->vrf_id); | |
e0ae31b8 | 4253 | |
096f7609 | 4254 | stream_putl(s, master->vrf->vrf_id); |
e0ae31b8 | 4255 | stream_putl(s, master->ifindex); |
096f7609 | 4256 | stream_putl(s, slave->vrf->vrf_id); |
e0ae31b8 DS |
4257 | stream_putl(s, slave->ifindex); |
4258 | ||
4259 | stream_putw_at(s, 0, stream_get_endp(s)); | |
db71415b | 4260 | return zclient_send_message(client); |
e0ae31b8 | 4261 | } |
eb451ee5 | 4262 | |
be7bbe52 S |
4263 | /* |
4264 | * Send capabilities message to zebra | |
4265 | */ | |
7cfdb485 DS |
4266 | enum zclient_send_status zclient_capabilities_send(uint32_t cmd, |
4267 | struct zclient *zclient, | |
4268 | struct zapi_cap *api) | |
eb451ee5 | 4269 | { |
be7bbe52 S |
4270 | |
4271 | struct stream *s; | |
4272 | ||
4273 | if (zclient == NULL) | |
7cfdb485 | 4274 | return ZCLIENT_SEND_FAILURE; |
be7bbe52 S |
4275 | |
4276 | s = zclient->obuf; | |
4277 | stream_reset(s); | |
4278 | zclient_create_header(s, cmd, 0); | |
4279 | stream_putl(s, api->cap); | |
4280 | ||
4281 | switch (api->cap) { | |
4282 | case ZEBRA_CLIENT_GR_CAPABILITIES: | |
4283 | case ZEBRA_CLIENT_RIB_STALE_TIME: | |
4284 | stream_putl(s, api->stale_removal_time); | |
4285 | stream_putl(s, api->vrf_id); | |
4286 | break; | |
4287 | case ZEBRA_CLIENT_ROUTE_UPDATE_COMPLETE: | |
4288 | case ZEBRA_CLIENT_ROUTE_UPDATE_PENDING: | |
4289 | stream_putl(s, api->afi); | |
4290 | stream_putl(s, api->safi); | |
4291 | stream_putl(s, api->vrf_id); | |
4292 | break; | |
4293 | case ZEBRA_CLIENT_GR_DISABLE: | |
4294 | stream_putl(s, api->vrf_id); | |
4295 | break; | |
4296 | } | |
4297 | ||
4298 | /* Put length at the first point of the stream */ | |
4299 | stream_putw_at(s, 0, stream_get_endp(s)); | |
4300 | ||
4301 | return zclient_send_message(zclient); | |
4302 | } | |
4303 | ||
4304 | /* | |
4305 | * Process capabilities message from zebra | |
4306 | */ | |
4307 | int32_t zapi_capabilities_decode(struct stream *s, struct zapi_cap *api) | |
4308 | { | |
4309 | ||
eb451ee5 | 4310 | memset(api, 0, sizeof(*api)); |
4311 | ||
4312 | STREAM_GETL(s, api->cap); | |
4313 | switch (api->cap) { | |
4314 | case ZEBRA_CLIENT_GR_CAPABILITIES: | |
4315 | case ZEBRA_CLIENT_RIB_STALE_TIME: | |
be7bbe52 S |
4316 | STREAM_GETL(s, api->stale_removal_time); |
4317 | STREAM_GETL(s, api->vrf_id); | |
4318 | break; | |
eb451ee5 | 4319 | case ZEBRA_CLIENT_ROUTE_UPDATE_COMPLETE: |
4320 | case ZEBRA_CLIENT_ROUTE_UPDATE_PENDING: | |
be7bbe52 S |
4321 | STREAM_GETL(s, api->afi); |
4322 | STREAM_GETL(s, api->safi); | |
4323 | STREAM_GETL(s, api->vrf_id); | |
4324 | break; | |
eb451ee5 | 4325 | case ZEBRA_CLIENT_GR_DISABLE: |
be7bbe52 S |
4326 | STREAM_GETL(s, api->vrf_id); |
4327 | break; | |
eb451ee5 | 4328 | } |
4329 | stream_failure: | |
4330 | return 0; | |
4331 | } | |
d68e74b4 | 4332 | |
7cfdb485 DS |
4333 | enum zclient_send_status |
4334 | zclient_send_neigh_discovery_req(struct zclient *zclient, | |
4335 | const struct interface *ifp, | |
4336 | const struct prefix *p) | |
d68e74b4 JU |
4337 | { |
4338 | struct stream *s; | |
4339 | ||
4340 | s = zclient->obuf; | |
4341 | stream_reset(s); | |
4342 | ||
096f7609 | 4343 | zclient_create_header(s, ZEBRA_NEIGH_DISCOVER, ifp->vrf->vrf_id); |
d68e74b4 JU |
4344 | stream_putl(s, ifp->ifindex); |
4345 | ||
4346 | stream_putc(s, p->family); | |
4347 | stream_putc(s, p->prefixlen); | |
4348 | stream_put(s, &p->u.prefix, prefix_blen(p)); | |
4349 | ||
4350 | stream_putw_at(s, 0, stream_get_endp(s)); | |
4351 | return zclient_send_message(zclient); | |
4352 | } | |
224b3c8a DS |
4353 | |
4354 | /* | |
4355 | * Get a starting nhg point for a routing protocol | |
4356 | */ | |
4357 | uint32_t zclient_get_nhg_start(uint32_t proto) | |
4358 | { | |
4359 | assert(proto < ZEBRA_ROUTE_MAX); | |
4360 | ||
54c89c93 | 4361 | return ZEBRA_NHG_PROTO_SPACING * proto; |
6c67f41f | 4362 | } |
61e6de9d DS |
4363 | |
4364 | char *zclient_dump_route_flags(uint32_t flags, char *buf, size_t len) | |
4365 | { | |
4366 | if (flags == 0) { | |
4367 | snprintfrr(buf, len, "None "); | |
4368 | return buf; | |
4369 | } | |
4370 | ||
4371 | snprintfrr( | |
4372 | buf, len, "%s%s%s%s%s%s%s%s%s%s", | |
4373 | CHECK_FLAG(flags, ZEBRA_FLAG_ALLOW_RECURSION) ? "Recursion " | |
4374 | : "", | |
4375 | CHECK_FLAG(flags, ZEBRA_FLAG_SELFROUTE) ? "Self " : "", | |
4376 | CHECK_FLAG(flags, ZEBRA_FLAG_IBGP) ? "iBGP " : "", | |
4377 | CHECK_FLAG(flags, ZEBRA_FLAG_SELECTED) ? "Selected " : "", | |
4378 | CHECK_FLAG(flags, ZEBRA_FLAG_FIB_OVERRIDE) ? "Override " : "", | |
4379 | CHECK_FLAG(flags, ZEBRA_FLAG_EVPN_ROUTE) ? "Evpn " : "", | |
4380 | CHECK_FLAG(flags, ZEBRA_FLAG_RR_USE_DISTANCE) ? "RR Distance " | |
4381 | : "", | |
4382 | CHECK_FLAG(flags, ZEBRA_FLAG_TRAPPED) ? "Trapped " : "", | |
4383 | CHECK_FLAG(flags, ZEBRA_FLAG_OFFLOADED) ? "Offloaded " : "", | |
4384 | CHECK_FLAG(flags, ZEBRA_FLAG_OFFLOAD_FAILED) ? "Offload Failed " | |
4385 | : ""); | |
4386 | return buf; | |
4387 | } | |
bf902d4c DS |
4388 | |
4389 | char *zclient_evpn_dump_macip_flags(uint8_t flags, char *buf, size_t len) | |
4390 | { | |
4391 | if (flags == 0) { | |
4392 | snprintfrr(buf, len, "None "); | |
4393 | return buf; | |
4394 | } | |
4395 | ||
4396 | snprintfrr( | |
4397 | buf, len, "%s%s%s%s%s%s%s", | |
4398 | CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY) ? "Sticky MAC " : "", | |
4399 | CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW) ? "Gateway MAC " : "", | |
4400 | CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_ROUTER_FLAG) ? "Router " | |
4401 | : "", | |
4402 | CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_OVERRIDE_FLAG) ? "Override " | |
4403 | : "", | |
4404 | CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_SVI_IP) ? "SVI MAC " : "", | |
4405 | CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT) ? "Proxy " | |
4406 | : "", | |
4407 | CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_SYNC_PATH) ? "Sync " : ""); | |
4408 | ||
4409 | return buf; | |
4410 | } | |
d603c077 PG |
4411 | |
4412 | static int zclient_neigh_ip_read_entry(struct stream *s, struct ipaddr *add) | |
4413 | { | |
4414 | uint8_t family; | |
4415 | ||
4416 | STREAM_GETC(s, family); | |
4417 | if (family != AF_INET && family != AF_INET6) | |
4418 | return -1; | |
4419 | ||
4420 | STREAM_GET(&add->ip.addr, s, family2addrsize(family)); | |
4421 | add->ipa_type = family; | |
4422 | return 0; | |
4423 | stream_failure: | |
4424 | return -1; | |
4425 | } | |
4426 | ||
c4e1fd52 PG |
4427 | int zclient_neigh_ip_encode(struct stream *s, uint16_t cmd, union sockunion *in, |
4428 | union sockunion *out, struct interface *ifp, | |
4429 | int ndm_state) | |
d603c077 PG |
4430 | { |
4431 | int ret = 0; | |
4432 | ||
096f7609 | 4433 | zclient_create_header(s, cmd, ifp->vrf->vrf_id); |
d603c077 PG |
4434 | stream_putc(s, sockunion_family(in)); |
4435 | stream_write(s, sockunion_get_addr(in), sockunion_get_addrlen(in)); | |
4436 | if (out && sockunion_family(out) != AF_UNSPEC) { | |
4437 | stream_putc(s, sockunion_family(out)); | |
4438 | stream_write(s, sockunion_get_addr(out), | |
4439 | sockunion_get_addrlen(out)); | |
4440 | } else | |
4441 | stream_putc(s, AF_UNSPEC); | |
4442 | stream_putl(s, ifp->ifindex); | |
4443 | if (out) | |
c4e1fd52 | 4444 | stream_putl(s, ndm_state); |
d603c077 PG |
4445 | else |
4446 | stream_putl(s, ZEBRA_NEIGH_STATE_FAILED); | |
4447 | return ret; | |
4448 | } | |
4449 | ||
4450 | int zclient_neigh_ip_decode(struct stream *s, struct zapi_neigh_ip *api) | |
4451 | { | |
4452 | int ret; | |
4453 | ||
4454 | ret = zclient_neigh_ip_read_entry(s, &api->ip_in); | |
4455 | if (ret < 0) | |
4456 | return -1; | |
4457 | zclient_neigh_ip_read_entry(s, &api->ip_out); | |
4458 | ||
4459 | STREAM_GETL(s, api->index); | |
4460 | STREAM_GETL(s, api->ndm_state); | |
4461 | return 0; | |
4462 | stream_failure: | |
4463 | return -1; | |
4464 | } | |
d17af8dd PG |
4465 | |
4466 | int zclient_send_zebra_gre_request(struct zclient *client, | |
4467 | struct interface *ifp) | |
4468 | { | |
4469 | struct stream *s; | |
d17af8dd PG |
4470 | |
4471 | if (!client || client->sock < 0) { | |
4472 | zlog_err("%s : zclient not ready", __func__); | |
4473 | return -1; | |
4474 | } | |
4475 | s = client->obuf; | |
4476 | stream_reset(s); | |
096f7609 | 4477 | zclient_create_header(s, ZEBRA_GRE_GET, ifp->vrf->vrf_id); |
d17af8dd PG |
4478 | stream_putl(s, ifp->ifindex); |
4479 | stream_putw_at(s, 0, stream_get_endp(s)); | |
4480 | zclient_send_message(client); | |
4481 | return 0; | |
d17af8dd | 4482 | } |