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