]>
Commit | Line | Data |
---|---|---|
2d33f157 | 1 | /* |
2 | * API message handling module for OSPF daemon and client. | |
3 | * Copyright (C) 2001, 2002 Ralph Keller | |
44038c7a | 4 | * Copyright (c) 2022, LabN Consulting, L.L.C. |
2d33f157 | 5 | * |
6 | * This file is part of GNU Zebra. | |
896014f4 | 7 | * |
2d33f157 | 8 | * GNU Zebra is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published | |
10 | * by the Free Software Foundation; either version 2, or (at your | |
11 | * option) any later version. | |
12 | * | |
13 | * GNU Zebra is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
896014f4 DL |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
2d33f157 | 21 | */ |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #ifdef SUPPORT_OSPF_API | |
2d33f157 | 26 | |
27 | #include "linklist.h" | |
28 | #include "prefix.h" | |
29 | #include "if.h" | |
30 | #include "table.h" | |
31 | #include "memory.h" | |
32 | #include "command.h" | |
33 | #include "vty.h" | |
34 | #include "stream.h" | |
35 | #include "log.h" | |
36 | #include "thread.h" | |
37 | #include "hash.h" | |
d62a17ae | 38 | #include "sockunion.h" /* for inet_aton() */ |
2d33f157 | 39 | #include "buffer.h" |
40 | #include "network.h" | |
41 | ||
42 | #include "ospfd/ospfd.h" | |
43 | #include "ospfd/ospf_interface.h" | |
44 | #include "ospfd/ospf_ism.h" | |
45 | #include "ospfd/ospf_asbr.h" | |
46 | #include "ospfd/ospf_lsa.h" | |
47 | #include "ospfd/ospf_lsdb.h" | |
48 | #include "ospfd/ospf_neighbor.h" | |
49 | #include "ospfd/ospf_nsm.h" | |
50 | #include "ospfd/ospf_flood.h" | |
51 | #include "ospfd/ospf_packet.h" | |
52 | #include "ospfd/ospf_spf.h" | |
53 | #include "ospfd/ospf_dump.h" | |
54 | #include "ospfd/ospf_route.h" | |
55 | #include "ospfd/ospf_ase.h" | |
56 | #include "ospfd/ospf_zebra.h" | |
57 | ||
58 | #include "ospfd/ospf_api.h" | |
59 | ||
60 | ||
61 | /* For debugging only, will be removed */ | |
8db278b5 | 62 | void api_opaque_lsa_print(struct ospf_lsa *lsa) |
2d33f157 | 63 | { |
d62a17ae | 64 | struct opaque_lsa { |
65 | struct lsa_header header; | |
d7c0a89a | 66 | uint8_t mydata[]; |
d62a17ae | 67 | }; |
2d33f157 | 68 | |
d62a17ae | 69 | struct opaque_lsa *olsa; |
70 | int opaquelen; | |
71 | int i; | |
2d33f157 | 72 | |
8db278b5 | 73 | ospf_lsa_header_dump(lsa->data); |
2d33f157 | 74 | |
8db278b5 | 75 | olsa = (struct opaque_lsa *)lsa->data; |
2d33f157 | 76 | |
8db278b5 | 77 | opaquelen = lsa->size - OSPF_LSA_HEADER_SIZE; |
9165c5f5 | 78 | zlog_debug("apiserver_lsa_print: opaquelen=%d", opaquelen); |
2d33f157 | 79 | |
d62a17ae | 80 | for (i = 0; i < opaquelen; i++) { |
81 | zlog_debug("0x%x ", olsa->mydata[i]); | |
82 | } | |
9165c5f5 | 83 | zlog_debug(" "); |
2d33f157 | 84 | } |
85 | ||
86 | /* ----------------------------------------------------------- | |
87 | * Generic messages | |
88 | * ----------------------------------------------------------- | |
89 | */ | |
90 | ||
d7c0a89a QY |
91 | struct msg *msg_new(uint8_t msgtype, void *msgbody, uint32_t seqnum, |
92 | uint16_t msglen) | |
2d33f157 | 93 | { |
d62a17ae | 94 | struct msg *new; |
2d33f157 | 95 | |
d62a17ae | 96 | new = XCALLOC(MTYPE_OSPF_API_MSG, sizeof(struct msg)); |
2d33f157 | 97 | |
d62a17ae | 98 | new->hdr.version = OSPF_API_VERSION; |
99 | new->hdr.msgtype = msgtype; | |
100 | new->hdr.msglen = htons(msglen); | |
101 | new->hdr.msgseq = htonl(seqnum); | |
2d33f157 | 102 | |
d62a17ae | 103 | new->s = stream_new(msglen); |
104 | assert(new->s); | |
105 | stream_put(new->s, msgbody, msglen); | |
2d33f157 | 106 | |
d62a17ae | 107 | return new; |
2d33f157 | 108 | } |
109 | ||
110 | ||
111 | /* Duplicate a message by copying content. */ | |
d62a17ae | 112 | struct msg *msg_dup(struct msg *msg) |
2d33f157 | 113 | { |
d62a17ae | 114 | struct msg *new; |
8db278b5 | 115 | size_t size; |
2d33f157 | 116 | |
d62a17ae | 117 | assert(msg); |
2d33f157 | 118 | |
8db278b5 OD |
119 | size = ntohs(msg->hdr.msglen); |
120 | if (size > OSPF_MAX_LSA_SIZE) | |
121 | return NULL; | |
122 | ||
d62a17ae | 123 | new = msg_new(msg->hdr.msgtype, STREAM_DATA(msg->s), |
8db278b5 | 124 | ntohl(msg->hdr.msgseq), size); |
d62a17ae | 125 | return new; |
2d33f157 | 126 | } |
127 | ||
128 | ||
129 | /* XXX only for testing, will be removed */ | |
130 | ||
131 | struct nametab { | |
d62a17ae | 132 | int value; |
133 | const char *name; | |
2d33f157 | 134 | }; |
135 | ||
d62a17ae | 136 | const char *ospf_api_typename(int msgtype) |
2d33f157 | 137 | { |
d62a17ae | 138 | struct nametab NameTab[] = { |
139 | { | |
9d303b37 | 140 | MSG_REGISTER_OPAQUETYPE, "Register opaque-type", |
d62a17ae | 141 | }, |
142 | { | |
9d303b37 | 143 | MSG_UNREGISTER_OPAQUETYPE, "Unregister opaque-type", |
d62a17ae | 144 | }, |
145 | { | |
9d303b37 | 146 | MSG_REGISTER_EVENT, "Register event", |
d62a17ae | 147 | }, |
148 | { | |
9d303b37 | 149 | MSG_SYNC_LSDB, "Sync LSDB", |
d62a17ae | 150 | }, |
151 | { | |
9d303b37 | 152 | MSG_ORIGINATE_REQUEST, "Originate request", |
d62a17ae | 153 | }, |
154 | { | |
9d303b37 | 155 | MSG_DELETE_REQUEST, "Delete request", |
d62a17ae | 156 | }, |
157 | { | |
9d303b37 | 158 | MSG_REPLY, "Reply", |
d62a17ae | 159 | }, |
160 | { | |
9d303b37 | 161 | MSG_READY_NOTIFY, "Ready notify", |
d62a17ae | 162 | }, |
163 | { | |
9d303b37 | 164 | MSG_LSA_UPDATE_NOTIFY, "LSA update notify", |
d62a17ae | 165 | }, |
166 | { | |
9d303b37 | 167 | MSG_LSA_DELETE_NOTIFY, "LSA delete notify", |
d62a17ae | 168 | }, |
169 | { | |
9d303b37 | 170 | MSG_NEW_IF, "New interface", |
d62a17ae | 171 | }, |
172 | { | |
9d303b37 | 173 | MSG_DEL_IF, "Del interface", |
d62a17ae | 174 | }, |
175 | { | |
9d303b37 | 176 | MSG_ISM_CHANGE, "ISM change", |
d62a17ae | 177 | }, |
178 | { | |
9d303b37 | 179 | MSG_NSM_CHANGE, "NSM change", |
d62a17ae | 180 | }, |
149491af CH |
181 | { |
182 | MSG_REACHABLE_CHANGE, | |
183 | "Reachable change", | |
184 | }, | |
d62a17ae | 185 | }; |
186 | ||
187 | int i, n = array_size(NameTab); | |
188 | const char *name = NULL; | |
189 | ||
190 | for (i = 0; i < n; i++) { | |
191 | if (NameTab[i].value == msgtype) { | |
192 | name = NameTab[i].name; | |
193 | break; | |
194 | } | |
195 | } | |
196 | ||
197 | return name ? name : "?"; | |
2d33f157 | 198 | } |
199 | ||
d62a17ae | 200 | const char *ospf_api_errname(int errcode) |
2d33f157 | 201 | { |
d62a17ae | 202 | struct nametab NameTab[] = { |
203 | { | |
9d303b37 | 204 | OSPF_API_OK, "OK", |
d62a17ae | 205 | }, |
206 | { | |
9d303b37 | 207 | OSPF_API_NOSUCHINTERFACE, "No such interface", |
d62a17ae | 208 | }, |
209 | { | |
9d303b37 | 210 | OSPF_API_NOSUCHAREA, "No such area", |
d62a17ae | 211 | }, |
212 | { | |
9d303b37 | 213 | OSPF_API_NOSUCHLSA, "No such LSA", |
d62a17ae | 214 | }, |
215 | { | |
9d303b37 | 216 | OSPF_API_ILLEGALLSATYPE, "Illegal LSA type", |
d62a17ae | 217 | }, |
218 | { | |
9d303b37 | 219 | OSPF_API_OPAQUETYPEINUSE, "Opaque type in use", |
d62a17ae | 220 | }, |
221 | { | |
222 | OSPF_API_OPAQUETYPENOTREGISTERED, | |
223 | "Opaque type not registered", | |
224 | }, | |
225 | { | |
9d303b37 | 226 | OSPF_API_NOTREADY, "Not ready", |
d62a17ae | 227 | }, |
228 | { | |
9d303b37 | 229 | OSPF_API_NOMEMORY, "No memory", |
d62a17ae | 230 | }, |
231 | { | |
9d303b37 | 232 | OSPF_API_ERROR, "Other error", |
d62a17ae | 233 | }, |
234 | { | |
9d303b37 | 235 | OSPF_API_UNDEF, "Undefined", |
d62a17ae | 236 | }, |
237 | }; | |
238 | ||
239 | int i, n = array_size(NameTab); | |
240 | const char *name = NULL; | |
241 | ||
242 | for (i = 0; i < n; i++) { | |
243 | if (NameTab[i].value == errcode) { | |
244 | name = NameTab[i].name; | |
245 | break; | |
246 | } | |
247 | } | |
248 | ||
249 | return name ? name : "?"; | |
2d33f157 | 250 | } |
251 | ||
d62a17ae | 252 | void msg_print(struct msg *msg) |
2d33f157 | 253 | { |
d62a17ae | 254 | if (!msg) { |
9165c5f5 | 255 | zlog_debug("msg_print msg=NULL!"); |
d62a17ae | 256 | return; |
257 | } | |
2d33f157 | 258 | |
d62a17ae | 259 | /* API message common header part. */ |
260 | zlog_debug("API-msg [%s]: type(%d),len(%d),seq(%lu),data(%p),size(%zd)", | |
261 | ospf_api_typename(msg->hdr.msgtype), msg->hdr.msgtype, | |
262 | ntohs(msg->hdr.msglen), | |
263 | (unsigned long)ntohl(msg->hdr.msgseq), STREAM_DATA(msg->s), | |
264 | STREAM_SIZE(msg->s)); | |
265 | ||
d62a17ae | 266 | return; |
2d33f157 | 267 | } |
268 | ||
d62a17ae | 269 | void msg_free(struct msg *msg) |
2d33f157 | 270 | { |
d62a17ae | 271 | if (msg->s) |
272 | stream_free(msg->s); | |
2d33f157 | 273 | |
d62a17ae | 274 | XFREE(MTYPE_OSPF_API_MSG, msg); |
2d33f157 | 275 | } |
276 | ||
277 | ||
278 | /* Set sequence number of message */ | |
d7c0a89a | 279 | void msg_set_seq(struct msg *msg, uint32_t seqnr) |
2d33f157 | 280 | { |
d62a17ae | 281 | assert(msg); |
282 | msg->hdr.msgseq = htonl(seqnr); | |
2d33f157 | 283 | } |
284 | ||
285 | /* Get sequence number of message */ | |
d7c0a89a | 286 | uint32_t msg_get_seq(struct msg *msg) |
2d33f157 | 287 | { |
d62a17ae | 288 | assert(msg); |
289 | return ntohl(msg->hdr.msgseq); | |
2d33f157 | 290 | } |
291 | ||
292 | /* ----------------------------------------------------------- | |
293 | * Message fifo queues | |
294 | * ----------------------------------------------------------- | |
295 | */ | |
296 | ||
4d762f26 | 297 | struct msg_fifo *msg_fifo_new(void) |
2d33f157 | 298 | { |
d62a17ae | 299 | return XCALLOC(MTYPE_OSPF_API_FIFO, sizeof(struct msg_fifo)); |
2d33f157 | 300 | } |
301 | ||
302 | /* Add new message to fifo. */ | |
d62a17ae | 303 | void msg_fifo_push(struct msg_fifo *fifo, struct msg *msg) |
2d33f157 | 304 | { |
d62a17ae | 305 | if (fifo->tail) |
306 | fifo->tail->next = msg; | |
307 | else | |
308 | fifo->head = msg; | |
2d33f157 | 309 | |
d62a17ae | 310 | fifo->tail = msg; |
311 | fifo->count++; | |
2d33f157 | 312 | } |
313 | ||
314 | ||
315 | /* Remove first message from fifo. */ | |
d62a17ae | 316 | struct msg *msg_fifo_pop(struct msg_fifo *fifo) |
2d33f157 | 317 | { |
d62a17ae | 318 | struct msg *msg; |
2d33f157 | 319 | |
d62a17ae | 320 | msg = fifo->head; |
321 | if (msg) { | |
322 | fifo->head = msg->next; | |
2d33f157 | 323 | |
d62a17ae | 324 | if (fifo->head == NULL) |
325 | fifo->tail = NULL; | |
2d33f157 | 326 | |
d62a17ae | 327 | fifo->count--; |
328 | } | |
329 | return msg; | |
2d33f157 | 330 | } |
331 | ||
332 | /* Return first fifo entry but do not remove it. */ | |
d62a17ae | 333 | struct msg *msg_fifo_head(struct msg_fifo *fifo) |
2d33f157 | 334 | { |
d62a17ae | 335 | return fifo->head; |
2d33f157 | 336 | } |
337 | ||
338 | /* Flush message fifo. */ | |
d62a17ae | 339 | void msg_fifo_flush(struct msg_fifo *fifo) |
2d33f157 | 340 | { |
d62a17ae | 341 | struct msg *op; |
342 | struct msg *next; | |
2d33f157 | 343 | |
d62a17ae | 344 | for (op = fifo->head; op; op = next) { |
345 | next = op->next; | |
346 | msg_free(op); | |
347 | } | |
2d33f157 | 348 | |
d62a17ae | 349 | fifo->head = fifo->tail = NULL; |
350 | fifo->count = 0; | |
2d33f157 | 351 | } |
352 | ||
353 | /* Free API message fifo. */ | |
d62a17ae | 354 | void msg_fifo_free(struct msg_fifo *fifo) |
2d33f157 | 355 | { |
d62a17ae | 356 | msg_fifo_flush(fifo); |
2d33f157 | 357 | |
d62a17ae | 358 | XFREE(MTYPE_OSPF_API_FIFO, fifo); |
2d33f157 | 359 | } |
360 | ||
d62a17ae | 361 | struct msg *msg_read(int fd) |
2d33f157 | 362 | { |
d62a17ae | 363 | struct msg *msg; |
364 | struct apimsghdr hdr; | |
d7c0a89a | 365 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
e1c511c6 DS |
366 | ssize_t bodylen; |
367 | ssize_t rlen; | |
d62a17ae | 368 | |
369 | /* Read message header */ | |
d7c0a89a | 370 | rlen = readn(fd, (uint8_t *)&hdr, sizeof(struct apimsghdr)); |
d62a17ae | 371 | |
372 | if (rlen < 0) { | |
373 | zlog_warn("msg_read: readn %s", safe_strerror(errno)); | |
374 | return NULL; | |
375 | } else if (rlen == 0) { | |
376 | zlog_warn("msg_read: Connection closed by peer"); | |
377 | return NULL; | |
378 | } else if (rlen != sizeof(struct apimsghdr)) { | |
379 | zlog_warn("msg_read: Cannot read message header!"); | |
380 | return NULL; | |
2d33f157 | 381 | } |
d62a17ae | 382 | |
383 | /* Check version of API protocol */ | |
384 | if (hdr.version != OSPF_API_VERSION) { | |
385 | zlog_warn("msg_read: OSPF API protocol version mismatch"); | |
386 | return NULL; | |
2d33f157 | 387 | } |
d62a17ae | 388 | |
389 | /* Determine body length. */ | |
390 | bodylen = ntohs(hdr.msglen); | |
e1c511c6 DS |
391 | if (bodylen > (ssize_t)sizeof(buf)) { |
392 | zlog_warn("%s: Body Length of message greater than what we can read", | |
393 | __func__); | |
394 | return NULL; | |
395 | } | |
d62a17ae | 396 | |
e1c511c6 | 397 | if (bodylen > 0) { |
d62a17ae | 398 | /* Read message body */ |
399 | rlen = readn(fd, buf, bodylen); | |
400 | if (rlen < 0) { | |
401 | zlog_warn("msg_read: readn %s", safe_strerror(errno)); | |
402 | return NULL; | |
403 | } else if (rlen == 0) { | |
404 | zlog_warn("msg_read: Connection closed by peer"); | |
405 | return NULL; | |
406 | } else if (rlen != bodylen) { | |
407 | zlog_warn("msg_read: Cannot read message body!"); | |
408 | return NULL; | |
409 | } | |
2d33f157 | 410 | } |
2d33f157 | 411 | |
d62a17ae | 412 | /* Allocate new message */ |
8db278b5 | 413 | msg = msg_new(hdr.msgtype, buf, ntohl(hdr.msgseq), bodylen); |
2d33f157 | 414 | |
d62a17ae | 415 | return msg; |
2d33f157 | 416 | } |
417 | ||
d62a17ae | 418 | int msg_write(int fd, struct msg *msg) |
2d33f157 | 419 | { |
d7c0a89a | 420 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
8db278b5 | 421 | uint16_t l; |
d62a17ae | 422 | int wlen; |
423 | ||
424 | assert(msg); | |
425 | assert(msg->s); | |
426 | ||
8db278b5 OD |
427 | /* Length of OSPF LSA payload */ |
428 | l = ntohs(msg->hdr.msglen); | |
429 | if (l > OSPF_MAX_LSA_SIZE) { | |
430 | zlog_warn("%s: wrong LSA size %d", __func__, l); | |
431 | return -1; | |
432 | } | |
d62a17ae | 433 | |
434 | /* Make contiguous memory buffer for message */ | |
435 | memcpy(buf, &msg->hdr, sizeof(struct apimsghdr)); | |
8db278b5 | 436 | memcpy(buf + sizeof(struct apimsghdr), STREAM_DATA(msg->s), l); |
d62a17ae | 437 | |
8db278b5 OD |
438 | /* Total length of OSPF API Message */ |
439 | l += sizeof(struct apimsghdr); | |
d62a17ae | 440 | wlen = writen(fd, buf, l); |
441 | if (wlen < 0) { | |
8db278b5 | 442 | zlog_warn("%s: writen %s", __func__, safe_strerror(errno)); |
d62a17ae | 443 | return -1; |
444 | } else if (wlen == 0) { | |
8db278b5 | 445 | zlog_warn("%s: Connection closed by peer", __func__); |
d62a17ae | 446 | return -1; |
447 | } else if (wlen != l) { | |
8db278b5 | 448 | zlog_warn("%s: Cannot write API message", __func__); |
d62a17ae | 449 | return -1; |
450 | } | |
451 | return 0; | |
2d33f157 | 452 | } |
453 | ||
454 | /* ----------------------------------------------------------- | |
455 | * Specific messages | |
456 | * ----------------------------------------------------------- | |
457 | */ | |
458 | ||
d7c0a89a QY |
459 | struct msg *new_msg_register_opaque_type(uint32_t seqnum, uint8_t ltype, |
460 | uint8_t otype) | |
2d33f157 | 461 | { |
d62a17ae | 462 | struct msg_register_opaque_type rmsg; |
2d33f157 | 463 | |
d62a17ae | 464 | rmsg.lsatype = ltype; |
465 | rmsg.opaquetype = otype; | |
466 | memset(&rmsg.pad, 0, sizeof(rmsg.pad)); | |
2d33f157 | 467 | |
d62a17ae | 468 | return msg_new(MSG_REGISTER_OPAQUETYPE, &rmsg, seqnum, |
469 | sizeof(struct msg_register_opaque_type)); | |
2d33f157 | 470 | } |
471 | ||
d7c0a89a | 472 | struct msg *new_msg_register_event(uint32_t seqnum, |
d62a17ae | 473 | struct lsa_filter_type *filter) |
2d33f157 | 474 | { |
d7c0a89a | 475 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
d62a17ae | 476 | struct msg_register_event *emsg; |
477 | unsigned int len; | |
478 | ||
479 | emsg = (struct msg_register_event *)buf; | |
480 | len = sizeof(struct msg_register_event) | |
481 | + filter->num_areas * sizeof(struct in_addr); | |
482 | emsg->filter.typemask = htons(filter->typemask); | |
483 | emsg->filter.origin = filter->origin; | |
484 | emsg->filter.num_areas = filter->num_areas; | |
485 | if (len > sizeof(buf)) | |
486 | len = sizeof(buf); | |
487 | /* API broken - missing memcpy to fill data */ | |
488 | return msg_new(MSG_REGISTER_EVENT, emsg, seqnum, len); | |
2d33f157 | 489 | } |
490 | ||
d7c0a89a | 491 | struct msg *new_msg_sync_lsdb(uint32_t seqnum, struct lsa_filter_type *filter) |
2d33f157 | 492 | { |
d7c0a89a | 493 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
d62a17ae | 494 | struct msg_sync_lsdb *smsg; |
495 | unsigned int len; | |
496 | ||
497 | smsg = (struct msg_sync_lsdb *)buf; | |
498 | len = sizeof(struct msg_sync_lsdb) | |
499 | + filter->num_areas * sizeof(struct in_addr); | |
500 | smsg->filter.typemask = htons(filter->typemask); | |
501 | smsg->filter.origin = filter->origin; | |
502 | smsg->filter.num_areas = filter->num_areas; | |
503 | if (len > sizeof(buf)) | |
504 | len = sizeof(buf); | |
505 | /* API broken - missing memcpy to fill data */ | |
506 | return msg_new(MSG_SYNC_LSDB, smsg, seqnum, len); | |
2d33f157 | 507 | } |
508 | ||
509 | ||
d7c0a89a | 510 | struct msg *new_msg_originate_request(uint32_t seqnum, struct in_addr ifaddr, |
d62a17ae | 511 | struct in_addr area_id, |
512 | struct lsa_header *data) | |
2d33f157 | 513 | { |
d62a17ae | 514 | struct msg_originate_request *omsg; |
515 | unsigned int omsglen; | |
516 | char buf[OSPF_API_MAX_MSG_SIZE]; | |
c23bc38a | 517 | size_t off_data = offsetof(struct msg_originate_request, data); |
518 | size_t data_maxs = sizeof(buf) - off_data; | |
519 | struct lsa_header *omsg_data = (struct lsa_header *)&buf[off_data]; | |
d62a17ae | 520 | |
521 | omsg = (struct msg_originate_request *)buf; | |
522 | omsg->ifaddr = ifaddr; | |
523 | omsg->area_id = area_id; | |
524 | ||
525 | omsglen = ntohs(data->length); | |
c23bc38a | 526 | if (omsglen > data_maxs) |
527 | omsglen = data_maxs; | |
528 | memcpy(omsg_data, data, omsglen); | |
d62a17ae | 529 | omsglen += sizeof(struct msg_originate_request) |
530 | - sizeof(struct lsa_header); | |
531 | ||
532 | return msg_new(MSG_ORIGINATE_REQUEST, omsg, seqnum, omsglen); | |
2d33f157 | 533 | } |
534 | ||
d7c0a89a QY |
535 | struct msg *new_msg_delete_request(uint32_t seqnum, struct in_addr area_id, |
536 | uint8_t lsa_type, uint8_t opaque_type, | |
537 | uint32_t opaque_id) | |
2d33f157 | 538 | { |
d62a17ae | 539 | struct msg_delete_request dmsg; |
540 | dmsg.area_id = area_id; | |
541 | dmsg.lsa_type = lsa_type; | |
542 | dmsg.opaque_type = opaque_type; | |
543 | dmsg.opaque_id = htonl(opaque_id); | |
544 | memset(&dmsg.pad, 0, sizeof(dmsg.pad)); | |
545 | ||
546 | return msg_new(MSG_DELETE_REQUEST, &dmsg, seqnum, | |
547 | sizeof(struct msg_delete_request)); | |
2d33f157 | 548 | } |
549 | ||
550 | ||
d7c0a89a | 551 | struct msg *new_msg_reply(uint32_t seqnr, uint8_t rc) |
2d33f157 | 552 | { |
d62a17ae | 553 | struct msg *msg; |
554 | struct msg_reply rmsg; | |
2d33f157 | 555 | |
d62a17ae | 556 | /* Set return code */ |
557 | rmsg.errcode = rc; | |
558 | memset(&rmsg.pad, 0, sizeof(rmsg.pad)); | |
2d33f157 | 559 | |
d62a17ae | 560 | msg = msg_new(MSG_REPLY, &rmsg, seqnr, sizeof(struct msg_reply)); |
2d33f157 | 561 | |
d62a17ae | 562 | return msg; |
2d33f157 | 563 | } |
564 | ||
d7c0a89a QY |
565 | struct msg *new_msg_ready_notify(uint32_t seqnr, uint8_t lsa_type, |
566 | uint8_t opaque_type, struct in_addr addr) | |
2d33f157 | 567 | { |
d62a17ae | 568 | struct msg_ready_notify rmsg; |
2d33f157 | 569 | |
d62a17ae | 570 | rmsg.lsa_type = lsa_type; |
571 | rmsg.opaque_type = opaque_type; | |
572 | memset(&rmsg.pad, 0, sizeof(rmsg.pad)); | |
573 | rmsg.addr = addr; | |
2d33f157 | 574 | |
d62a17ae | 575 | return msg_new(MSG_READY_NOTIFY, &rmsg, seqnr, |
576 | sizeof(struct msg_ready_notify)); | |
2d33f157 | 577 | } |
578 | ||
d7c0a89a | 579 | struct msg *new_msg_new_if(uint32_t seqnr, struct in_addr ifaddr, |
d62a17ae | 580 | struct in_addr area_id) |
2d33f157 | 581 | { |
d62a17ae | 582 | struct msg_new_if nmsg; |
2d33f157 | 583 | |
d62a17ae | 584 | nmsg.ifaddr = ifaddr; |
585 | nmsg.area_id = area_id; | |
2d33f157 | 586 | |
d62a17ae | 587 | return msg_new(MSG_NEW_IF, &nmsg, seqnr, sizeof(struct msg_new_if)); |
2d33f157 | 588 | } |
589 | ||
d7c0a89a | 590 | struct msg *new_msg_del_if(uint32_t seqnr, struct in_addr ifaddr) |
2d33f157 | 591 | { |
d62a17ae | 592 | struct msg_del_if dmsg; |
2d33f157 | 593 | |
d62a17ae | 594 | dmsg.ifaddr = ifaddr; |
2d33f157 | 595 | |
d62a17ae | 596 | return msg_new(MSG_DEL_IF, &dmsg, seqnr, sizeof(struct msg_del_if)); |
2d33f157 | 597 | } |
598 | ||
d7c0a89a QY |
599 | struct msg *new_msg_ism_change(uint32_t seqnr, struct in_addr ifaddr, |
600 | struct in_addr area_id, uint8_t status) | |
2d33f157 | 601 | { |
d62a17ae | 602 | struct msg_ism_change imsg; |
2d33f157 | 603 | |
d62a17ae | 604 | imsg.ifaddr = ifaddr; |
605 | imsg.area_id = area_id; | |
606 | imsg.status = status; | |
607 | memset(&imsg.pad, 0, sizeof(imsg.pad)); | |
2d33f157 | 608 | |
d62a17ae | 609 | return msg_new(MSG_ISM_CHANGE, &imsg, seqnr, |
610 | sizeof(struct msg_ism_change)); | |
2d33f157 | 611 | } |
612 | ||
d7c0a89a | 613 | struct msg *new_msg_nsm_change(uint32_t seqnr, struct in_addr ifaddr, |
d62a17ae | 614 | struct in_addr nbraddr, struct in_addr router_id, |
d7c0a89a | 615 | uint8_t status) |
2d33f157 | 616 | { |
d62a17ae | 617 | struct msg_nsm_change nmsg; |
2d33f157 | 618 | |
d62a17ae | 619 | nmsg.ifaddr = ifaddr; |
620 | nmsg.nbraddr = nbraddr; | |
621 | nmsg.router_id = router_id; | |
622 | nmsg.status = status; | |
623 | memset(&nmsg.pad, 0, sizeof(nmsg.pad)); | |
2d33f157 | 624 | |
d62a17ae | 625 | return msg_new(MSG_NSM_CHANGE, &nmsg, seqnr, |
626 | sizeof(struct msg_nsm_change)); | |
2d33f157 | 627 | } |
628 | ||
d7c0a89a | 629 | struct msg *new_msg_lsa_change_notify(uint8_t msgtype, uint32_t seqnum, |
d62a17ae | 630 | struct in_addr ifaddr, |
631 | struct in_addr area_id, | |
d7c0a89a | 632 | uint8_t is_self_originated, |
d62a17ae | 633 | struct lsa_header *data) |
2d33f157 | 634 | { |
d7c0a89a | 635 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
d62a17ae | 636 | struct msg_lsa_change_notify *nmsg; |
637 | unsigned int len; | |
c23bc38a | 638 | size_t off_data = offsetof(struct msg_lsa_change_notify, data); |
639 | size_t data_maxs = sizeof(buf) - off_data; | |
640 | struct lsa_header *nmsg_data = (struct lsa_header *)&buf[off_data]; | |
d62a17ae | 641 | |
642 | assert(data); | |
643 | ||
644 | nmsg = (struct msg_lsa_change_notify *)buf; | |
645 | nmsg->ifaddr = ifaddr; | |
646 | nmsg->area_id = area_id; | |
647 | nmsg->is_self_originated = is_self_originated; | |
648 | memset(&nmsg->pad, 0, sizeof(nmsg->pad)); | |
649 | ||
650 | len = ntohs(data->length); | |
c23bc38a | 651 | if (len > data_maxs) |
652 | len = data_maxs; | |
653 | memcpy(nmsg_data, data, len); | |
d62a17ae | 654 | len += sizeof(struct msg_lsa_change_notify) - sizeof(struct lsa_header); |
655 | ||
656 | return msg_new(msgtype, nmsg, seqnum, len); | |
2d33f157 | 657 | } |
658 | ||
149491af CH |
659 | struct msg *new_msg_reachable_change(uint32_t seqnum, uint16_t nadd, |
660 | struct in_addr *add, uint16_t nremove, | |
661 | struct in_addr *remove) | |
662 | { | |
663 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; | |
664 | struct msg_reachable_change *nmsg = (void *)buf; | |
665 | const uint insz = sizeof(*nmsg->router_ids); | |
666 | const uint nmax = (sizeof(buf) - sizeof(*nmsg)) / insz; | |
667 | uint len; | |
668 | ||
669 | if (nadd > nmax) | |
670 | nadd = nmax; | |
671 | if (nremove > (nmax - nadd)) | |
672 | nremove = (nmax - nadd); | |
673 | ||
674 | if (nadd) | |
675 | memcpy(nmsg->router_ids, add, nadd * insz); | |
676 | if (nremove) | |
677 | memcpy(&nmsg->router_ids[nadd], remove, nremove * insz); | |
678 | ||
679 | nmsg->nadd = htons(nadd); | |
680 | nmsg->nremove = htons(nremove); | |
681 | len = sizeof(*nmsg) + insz * (nadd + nremove); | |
682 | ||
683 | return msg_new(MSG_REACHABLE_CHANGE, nmsg, seqnum, len); | |
684 | } | |
685 | ||
44038c7a CH |
686 | struct msg *new_msg_router_id_change(uint32_t seqnum, struct in_addr router_id) |
687 | { | |
688 | struct msg_router_id_change rmsg = {.router_id = router_id}; | |
689 | ||
690 | return msg_new(MSG_ROUTER_ID_CHANGE, &rmsg, seqnum, | |
691 | sizeof(struct msg_router_id_change)); | |
692 | } | |
693 | ||
2d33f157 | 694 | #endif /* SUPPORT_OSPF_API */ |