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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 */ | |
8db278b5 | 61 | void api_opaque_lsa_print(struct ospf_lsa *lsa) |
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 | |
8db278b5 | 72 | ospf_lsa_header_dump(lsa->data); |
2d33f157 | 73 | |
8db278b5 | 74 | olsa = (struct opaque_lsa *)lsa->data; |
2d33f157 | 75 | |
8db278b5 | 76 | opaquelen = lsa->size - 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; |
8db278b5 | 114 | size_t size; |
2d33f157 | 115 | |
d62a17ae | 116 | assert(msg); |
2d33f157 | 117 | |
8db278b5 OD |
118 | size = ntohs(msg->hdr.msglen); |
119 | if (size > OSPF_MAX_LSA_SIZE) | |
120 | return NULL; | |
121 | ||
d62a17ae | 122 | new = msg_new(msg->hdr.msgtype, STREAM_DATA(msg->s), |
8db278b5 | 123 | ntohl(msg->hdr.msgseq), size); |
d62a17ae | 124 | return new; |
2d33f157 | 125 | } |
126 | ||
127 | ||
128 | /* XXX only for testing, will be removed */ | |
129 | ||
130 | struct nametab { | |
d62a17ae | 131 | int value; |
132 | const char *name; | |
2d33f157 | 133 | }; |
134 | ||
d62a17ae | 135 | const char *ospf_api_typename(int msgtype) |
2d33f157 | 136 | { |
d62a17ae | 137 | struct nametab NameTab[] = { |
138 | { | |
9d303b37 | 139 | MSG_REGISTER_OPAQUETYPE, "Register opaque-type", |
d62a17ae | 140 | }, |
141 | { | |
9d303b37 | 142 | MSG_UNREGISTER_OPAQUETYPE, "Unregister opaque-type", |
d62a17ae | 143 | }, |
144 | { | |
9d303b37 | 145 | MSG_REGISTER_EVENT, "Register event", |
d62a17ae | 146 | }, |
147 | { | |
9d303b37 | 148 | MSG_SYNC_LSDB, "Sync LSDB", |
d62a17ae | 149 | }, |
150 | { | |
9d303b37 | 151 | MSG_ORIGINATE_REQUEST, "Originate request", |
d62a17ae | 152 | }, |
153 | { | |
9d303b37 | 154 | MSG_DELETE_REQUEST, "Delete request", |
d62a17ae | 155 | }, |
156 | { | |
9d303b37 | 157 | MSG_REPLY, "Reply", |
d62a17ae | 158 | }, |
159 | { | |
9d303b37 | 160 | MSG_READY_NOTIFY, "Ready notify", |
d62a17ae | 161 | }, |
162 | { | |
9d303b37 | 163 | MSG_LSA_UPDATE_NOTIFY, "LSA update notify", |
d62a17ae | 164 | }, |
165 | { | |
9d303b37 | 166 | MSG_LSA_DELETE_NOTIFY, "LSA delete notify", |
d62a17ae | 167 | }, |
168 | { | |
9d303b37 | 169 | MSG_NEW_IF, "New interface", |
d62a17ae | 170 | }, |
171 | { | |
9d303b37 | 172 | MSG_DEL_IF, "Del interface", |
d62a17ae | 173 | }, |
174 | { | |
9d303b37 | 175 | MSG_ISM_CHANGE, "ISM change", |
d62a17ae | 176 | }, |
177 | { | |
9d303b37 | 178 | MSG_NSM_CHANGE, "NSM change", |
d62a17ae | 179 | }, |
180 | }; | |
181 | ||
182 | int i, n = array_size(NameTab); | |
183 | const char *name = NULL; | |
184 | ||
185 | for (i = 0; i < n; i++) { | |
186 | if (NameTab[i].value == msgtype) { | |
187 | name = NameTab[i].name; | |
188 | break; | |
189 | } | |
190 | } | |
191 | ||
192 | return name ? name : "?"; | |
2d33f157 | 193 | } |
194 | ||
d62a17ae | 195 | const char *ospf_api_errname(int errcode) |
2d33f157 | 196 | { |
d62a17ae | 197 | struct nametab NameTab[] = { |
198 | { | |
9d303b37 | 199 | OSPF_API_OK, "OK", |
d62a17ae | 200 | }, |
201 | { | |
9d303b37 | 202 | OSPF_API_NOSUCHINTERFACE, "No such interface", |
d62a17ae | 203 | }, |
204 | { | |
9d303b37 | 205 | OSPF_API_NOSUCHAREA, "No such area", |
d62a17ae | 206 | }, |
207 | { | |
9d303b37 | 208 | OSPF_API_NOSUCHLSA, "No such LSA", |
d62a17ae | 209 | }, |
210 | { | |
9d303b37 | 211 | OSPF_API_ILLEGALLSATYPE, "Illegal LSA type", |
d62a17ae | 212 | }, |
213 | { | |
9d303b37 | 214 | OSPF_API_OPAQUETYPEINUSE, "Opaque type in use", |
d62a17ae | 215 | }, |
216 | { | |
217 | OSPF_API_OPAQUETYPENOTREGISTERED, | |
218 | "Opaque type not registered", | |
219 | }, | |
220 | { | |
9d303b37 | 221 | OSPF_API_NOTREADY, "Not ready", |
d62a17ae | 222 | }, |
223 | { | |
9d303b37 | 224 | OSPF_API_NOMEMORY, "No memory", |
d62a17ae | 225 | }, |
226 | { | |
9d303b37 | 227 | OSPF_API_ERROR, "Other error", |
d62a17ae | 228 | }, |
229 | { | |
9d303b37 | 230 | OSPF_API_UNDEF, "Undefined", |
d62a17ae | 231 | }, |
232 | }; | |
233 | ||
234 | int i, n = array_size(NameTab); | |
235 | const char *name = NULL; | |
236 | ||
237 | for (i = 0; i < n; i++) { | |
238 | if (NameTab[i].value == errcode) { | |
239 | name = NameTab[i].name; | |
240 | break; | |
241 | } | |
242 | } | |
243 | ||
244 | return name ? name : "?"; | |
2d33f157 | 245 | } |
246 | ||
d62a17ae | 247 | void msg_print(struct msg *msg) |
2d33f157 | 248 | { |
d62a17ae | 249 | if (!msg) { |
9165c5f5 | 250 | zlog_debug("msg_print msg=NULL!"); |
d62a17ae | 251 | return; |
252 | } | |
2d33f157 | 253 | |
d62a17ae | 254 | /* API message common header part. */ |
255 | zlog_debug("API-msg [%s]: type(%d),len(%d),seq(%lu),data(%p),size(%zd)", | |
256 | ospf_api_typename(msg->hdr.msgtype), msg->hdr.msgtype, | |
257 | ntohs(msg->hdr.msglen), | |
258 | (unsigned long)ntohl(msg->hdr.msgseq), STREAM_DATA(msg->s), | |
259 | STREAM_SIZE(msg->s)); | |
260 | ||
d62a17ae | 261 | return; |
2d33f157 | 262 | } |
263 | ||
d62a17ae | 264 | void msg_free(struct msg *msg) |
2d33f157 | 265 | { |
d62a17ae | 266 | if (msg->s) |
267 | stream_free(msg->s); | |
2d33f157 | 268 | |
d62a17ae | 269 | XFREE(MTYPE_OSPF_API_MSG, msg); |
2d33f157 | 270 | } |
271 | ||
272 | ||
273 | /* Set sequence number of message */ | |
d7c0a89a | 274 | void msg_set_seq(struct msg *msg, uint32_t seqnr) |
2d33f157 | 275 | { |
d62a17ae | 276 | assert(msg); |
277 | msg->hdr.msgseq = htonl(seqnr); | |
2d33f157 | 278 | } |
279 | ||
280 | /* Get sequence number of message */ | |
d7c0a89a | 281 | uint32_t msg_get_seq(struct msg *msg) |
2d33f157 | 282 | { |
d62a17ae | 283 | assert(msg); |
284 | return ntohl(msg->hdr.msgseq); | |
2d33f157 | 285 | } |
286 | ||
287 | /* ----------------------------------------------------------- | |
288 | * Message fifo queues | |
289 | * ----------------------------------------------------------- | |
290 | */ | |
291 | ||
4d762f26 | 292 | struct msg_fifo *msg_fifo_new(void) |
2d33f157 | 293 | { |
d62a17ae | 294 | return XCALLOC(MTYPE_OSPF_API_FIFO, sizeof(struct msg_fifo)); |
2d33f157 | 295 | } |
296 | ||
297 | /* Add new message to fifo. */ | |
d62a17ae | 298 | void msg_fifo_push(struct msg_fifo *fifo, struct msg *msg) |
2d33f157 | 299 | { |
d62a17ae | 300 | if (fifo->tail) |
301 | fifo->tail->next = msg; | |
302 | else | |
303 | fifo->head = msg; | |
2d33f157 | 304 | |
d62a17ae | 305 | fifo->tail = msg; |
306 | fifo->count++; | |
2d33f157 | 307 | } |
308 | ||
309 | ||
310 | /* Remove first message from fifo. */ | |
d62a17ae | 311 | struct msg *msg_fifo_pop(struct msg_fifo *fifo) |
2d33f157 | 312 | { |
d62a17ae | 313 | struct msg *msg; |
2d33f157 | 314 | |
d62a17ae | 315 | msg = fifo->head; |
316 | if (msg) { | |
317 | fifo->head = msg->next; | |
2d33f157 | 318 | |
d62a17ae | 319 | if (fifo->head == NULL) |
320 | fifo->tail = NULL; | |
2d33f157 | 321 | |
d62a17ae | 322 | fifo->count--; |
323 | } | |
324 | return msg; | |
2d33f157 | 325 | } |
326 | ||
327 | /* Return first fifo entry but do not remove it. */ | |
d62a17ae | 328 | struct msg *msg_fifo_head(struct msg_fifo *fifo) |
2d33f157 | 329 | { |
d62a17ae | 330 | return fifo->head; |
2d33f157 | 331 | } |
332 | ||
333 | /* Flush message fifo. */ | |
d62a17ae | 334 | void msg_fifo_flush(struct msg_fifo *fifo) |
2d33f157 | 335 | { |
d62a17ae | 336 | struct msg *op; |
337 | struct msg *next; | |
2d33f157 | 338 | |
d62a17ae | 339 | for (op = fifo->head; op; op = next) { |
340 | next = op->next; | |
341 | msg_free(op); | |
342 | } | |
2d33f157 | 343 | |
d62a17ae | 344 | fifo->head = fifo->tail = NULL; |
345 | fifo->count = 0; | |
2d33f157 | 346 | } |
347 | ||
348 | /* Free API message fifo. */ | |
d62a17ae | 349 | void msg_fifo_free(struct msg_fifo *fifo) |
2d33f157 | 350 | { |
d62a17ae | 351 | msg_fifo_flush(fifo); |
2d33f157 | 352 | |
d62a17ae | 353 | XFREE(MTYPE_OSPF_API_FIFO, fifo); |
2d33f157 | 354 | } |
355 | ||
d62a17ae | 356 | struct msg *msg_read(int fd) |
2d33f157 | 357 | { |
d62a17ae | 358 | struct msg *msg; |
359 | struct apimsghdr hdr; | |
d7c0a89a | 360 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
e1c511c6 DS |
361 | ssize_t bodylen; |
362 | ssize_t rlen; | |
d62a17ae | 363 | |
364 | /* Read message header */ | |
d7c0a89a | 365 | rlen = readn(fd, (uint8_t *)&hdr, sizeof(struct apimsghdr)); |
d62a17ae | 366 | |
367 | if (rlen < 0) { | |
368 | zlog_warn("msg_read: readn %s", safe_strerror(errno)); | |
369 | return NULL; | |
370 | } else if (rlen == 0) { | |
371 | zlog_warn("msg_read: Connection closed by peer"); | |
372 | return NULL; | |
373 | } else if (rlen != sizeof(struct apimsghdr)) { | |
374 | zlog_warn("msg_read: Cannot read message header!"); | |
375 | return NULL; | |
2d33f157 | 376 | } |
d62a17ae | 377 | |
378 | /* Check version of API protocol */ | |
379 | if (hdr.version != OSPF_API_VERSION) { | |
380 | zlog_warn("msg_read: OSPF API protocol version mismatch"); | |
381 | return NULL; | |
2d33f157 | 382 | } |
d62a17ae | 383 | |
384 | /* Determine body length. */ | |
385 | bodylen = ntohs(hdr.msglen); | |
e1c511c6 DS |
386 | if (bodylen > (ssize_t)sizeof(buf)) { |
387 | zlog_warn("%s: Body Length of message greater than what we can read", | |
388 | __func__); | |
389 | return NULL; | |
390 | } | |
d62a17ae | 391 | |
e1c511c6 | 392 | if (bodylen > 0) { |
d62a17ae | 393 | /* Read message body */ |
394 | rlen = readn(fd, buf, bodylen); | |
395 | if (rlen < 0) { | |
396 | zlog_warn("msg_read: readn %s", safe_strerror(errno)); | |
397 | return NULL; | |
398 | } else if (rlen == 0) { | |
399 | zlog_warn("msg_read: Connection closed by peer"); | |
400 | return NULL; | |
401 | } else if (rlen != bodylen) { | |
402 | zlog_warn("msg_read: Cannot read message body!"); | |
403 | return NULL; | |
404 | } | |
2d33f157 | 405 | } |
2d33f157 | 406 | |
d62a17ae | 407 | /* Allocate new message */ |
8db278b5 | 408 | msg = msg_new(hdr.msgtype, buf, ntohl(hdr.msgseq), bodylen); |
2d33f157 | 409 | |
d62a17ae | 410 | return msg; |
2d33f157 | 411 | } |
412 | ||
d62a17ae | 413 | int msg_write(int fd, struct msg *msg) |
2d33f157 | 414 | { |
d7c0a89a | 415 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
8db278b5 | 416 | uint16_t l; |
d62a17ae | 417 | int wlen; |
418 | ||
419 | assert(msg); | |
420 | assert(msg->s); | |
421 | ||
8db278b5 OD |
422 | /* Length of OSPF LSA payload */ |
423 | l = ntohs(msg->hdr.msglen); | |
424 | if (l > OSPF_MAX_LSA_SIZE) { | |
425 | zlog_warn("%s: wrong LSA size %d", __func__, l); | |
426 | return -1; | |
427 | } | |
d62a17ae | 428 | |
429 | /* Make contiguous memory buffer for message */ | |
430 | memcpy(buf, &msg->hdr, sizeof(struct apimsghdr)); | |
8db278b5 | 431 | memcpy(buf + sizeof(struct apimsghdr), STREAM_DATA(msg->s), l); |
d62a17ae | 432 | |
8db278b5 OD |
433 | /* Total length of OSPF API Message */ |
434 | l += sizeof(struct apimsghdr); | |
d62a17ae | 435 | wlen = writen(fd, buf, l); |
436 | if (wlen < 0) { | |
8db278b5 | 437 | zlog_warn("%s: writen %s", __func__, safe_strerror(errno)); |
d62a17ae | 438 | return -1; |
439 | } else if (wlen == 0) { | |
8db278b5 | 440 | zlog_warn("%s: Connection closed by peer", __func__); |
d62a17ae | 441 | return -1; |
442 | } else if (wlen != l) { | |
8db278b5 | 443 | zlog_warn("%s: Cannot write API message", __func__); |
d62a17ae | 444 | return -1; |
445 | } | |
446 | return 0; | |
2d33f157 | 447 | } |
448 | ||
449 | /* ----------------------------------------------------------- | |
450 | * Specific messages | |
451 | * ----------------------------------------------------------- | |
452 | */ | |
453 | ||
d7c0a89a QY |
454 | struct msg *new_msg_register_opaque_type(uint32_t seqnum, uint8_t ltype, |
455 | uint8_t otype) | |
2d33f157 | 456 | { |
d62a17ae | 457 | struct msg_register_opaque_type rmsg; |
2d33f157 | 458 | |
d62a17ae | 459 | rmsg.lsatype = ltype; |
460 | rmsg.opaquetype = otype; | |
461 | memset(&rmsg.pad, 0, sizeof(rmsg.pad)); | |
2d33f157 | 462 | |
d62a17ae | 463 | return msg_new(MSG_REGISTER_OPAQUETYPE, &rmsg, seqnum, |
464 | sizeof(struct msg_register_opaque_type)); | |
2d33f157 | 465 | } |
466 | ||
d7c0a89a | 467 | struct msg *new_msg_register_event(uint32_t seqnum, |
d62a17ae | 468 | struct lsa_filter_type *filter) |
2d33f157 | 469 | { |
d7c0a89a | 470 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
d62a17ae | 471 | struct msg_register_event *emsg; |
472 | unsigned int len; | |
473 | ||
474 | emsg = (struct msg_register_event *)buf; | |
475 | len = sizeof(struct msg_register_event) | |
476 | + filter->num_areas * sizeof(struct in_addr); | |
477 | emsg->filter.typemask = htons(filter->typemask); | |
478 | emsg->filter.origin = filter->origin; | |
479 | emsg->filter.num_areas = filter->num_areas; | |
480 | if (len > sizeof(buf)) | |
481 | len = sizeof(buf); | |
482 | /* API broken - missing memcpy to fill data */ | |
483 | return msg_new(MSG_REGISTER_EVENT, emsg, seqnum, len); | |
2d33f157 | 484 | } |
485 | ||
d7c0a89a | 486 | struct msg *new_msg_sync_lsdb(uint32_t seqnum, struct lsa_filter_type *filter) |
2d33f157 | 487 | { |
d7c0a89a | 488 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
d62a17ae | 489 | struct msg_sync_lsdb *smsg; |
490 | unsigned int len; | |
491 | ||
492 | smsg = (struct msg_sync_lsdb *)buf; | |
493 | len = sizeof(struct msg_sync_lsdb) | |
494 | + filter->num_areas * sizeof(struct in_addr); | |
495 | smsg->filter.typemask = htons(filter->typemask); | |
496 | smsg->filter.origin = filter->origin; | |
497 | smsg->filter.num_areas = filter->num_areas; | |
498 | if (len > sizeof(buf)) | |
499 | len = sizeof(buf); | |
500 | /* API broken - missing memcpy to fill data */ | |
501 | return msg_new(MSG_SYNC_LSDB, smsg, seqnum, len); | |
2d33f157 | 502 | } |
503 | ||
504 | ||
d7c0a89a | 505 | struct msg *new_msg_originate_request(uint32_t seqnum, struct in_addr ifaddr, |
d62a17ae | 506 | struct in_addr area_id, |
507 | struct lsa_header *data) | |
2d33f157 | 508 | { |
d62a17ae | 509 | struct msg_originate_request *omsg; |
510 | unsigned int omsglen; | |
511 | char buf[OSPF_API_MAX_MSG_SIZE]; | |
c23bc38a | 512 | size_t off_data = offsetof(struct msg_originate_request, data); |
513 | size_t data_maxs = sizeof(buf) - off_data; | |
514 | struct lsa_header *omsg_data = (struct lsa_header *)&buf[off_data]; | |
d62a17ae | 515 | |
516 | omsg = (struct msg_originate_request *)buf; | |
517 | omsg->ifaddr = ifaddr; | |
518 | omsg->area_id = area_id; | |
519 | ||
520 | omsglen = ntohs(data->length); | |
c23bc38a | 521 | if (omsglen > data_maxs) |
522 | omsglen = data_maxs; | |
523 | memcpy(omsg_data, data, omsglen); | |
d62a17ae | 524 | omsglen += sizeof(struct msg_originate_request) |
525 | - sizeof(struct lsa_header); | |
526 | ||
527 | return msg_new(MSG_ORIGINATE_REQUEST, omsg, seqnum, omsglen); | |
2d33f157 | 528 | } |
529 | ||
d7c0a89a QY |
530 | struct msg *new_msg_delete_request(uint32_t seqnum, struct in_addr area_id, |
531 | uint8_t lsa_type, uint8_t opaque_type, | |
532 | uint32_t opaque_id) | |
2d33f157 | 533 | { |
d62a17ae | 534 | struct msg_delete_request dmsg; |
535 | dmsg.area_id = area_id; | |
536 | dmsg.lsa_type = lsa_type; | |
537 | dmsg.opaque_type = opaque_type; | |
538 | dmsg.opaque_id = htonl(opaque_id); | |
539 | memset(&dmsg.pad, 0, sizeof(dmsg.pad)); | |
540 | ||
541 | return msg_new(MSG_DELETE_REQUEST, &dmsg, seqnum, | |
542 | sizeof(struct msg_delete_request)); | |
2d33f157 | 543 | } |
544 | ||
545 | ||
d7c0a89a | 546 | struct msg *new_msg_reply(uint32_t seqnr, uint8_t rc) |
2d33f157 | 547 | { |
d62a17ae | 548 | struct msg *msg; |
549 | struct msg_reply rmsg; | |
2d33f157 | 550 | |
d62a17ae | 551 | /* Set return code */ |
552 | rmsg.errcode = rc; | |
553 | memset(&rmsg.pad, 0, sizeof(rmsg.pad)); | |
2d33f157 | 554 | |
d62a17ae | 555 | msg = msg_new(MSG_REPLY, &rmsg, seqnr, sizeof(struct msg_reply)); |
2d33f157 | 556 | |
d62a17ae | 557 | return msg; |
2d33f157 | 558 | } |
559 | ||
d7c0a89a QY |
560 | struct msg *new_msg_ready_notify(uint32_t seqnr, uint8_t lsa_type, |
561 | uint8_t opaque_type, struct in_addr addr) | |
2d33f157 | 562 | { |
d62a17ae | 563 | struct msg_ready_notify rmsg; |
2d33f157 | 564 | |
d62a17ae | 565 | rmsg.lsa_type = lsa_type; |
566 | rmsg.opaque_type = opaque_type; | |
567 | memset(&rmsg.pad, 0, sizeof(rmsg.pad)); | |
568 | rmsg.addr = addr; | |
2d33f157 | 569 | |
d62a17ae | 570 | return msg_new(MSG_READY_NOTIFY, &rmsg, seqnr, |
571 | sizeof(struct msg_ready_notify)); | |
2d33f157 | 572 | } |
573 | ||
d7c0a89a | 574 | struct msg *new_msg_new_if(uint32_t seqnr, struct in_addr ifaddr, |
d62a17ae | 575 | struct in_addr area_id) |
2d33f157 | 576 | { |
d62a17ae | 577 | struct msg_new_if nmsg; |
2d33f157 | 578 | |
d62a17ae | 579 | nmsg.ifaddr = ifaddr; |
580 | nmsg.area_id = area_id; | |
2d33f157 | 581 | |
d62a17ae | 582 | return msg_new(MSG_NEW_IF, &nmsg, seqnr, sizeof(struct msg_new_if)); |
2d33f157 | 583 | } |
584 | ||
d7c0a89a | 585 | struct msg *new_msg_del_if(uint32_t seqnr, struct in_addr ifaddr) |
2d33f157 | 586 | { |
d62a17ae | 587 | struct msg_del_if dmsg; |
2d33f157 | 588 | |
d62a17ae | 589 | dmsg.ifaddr = ifaddr; |
2d33f157 | 590 | |
d62a17ae | 591 | return msg_new(MSG_DEL_IF, &dmsg, seqnr, sizeof(struct msg_del_if)); |
2d33f157 | 592 | } |
593 | ||
d7c0a89a QY |
594 | struct msg *new_msg_ism_change(uint32_t seqnr, struct in_addr ifaddr, |
595 | struct in_addr area_id, uint8_t status) | |
2d33f157 | 596 | { |
d62a17ae | 597 | struct msg_ism_change imsg; |
2d33f157 | 598 | |
d62a17ae | 599 | imsg.ifaddr = ifaddr; |
600 | imsg.area_id = area_id; | |
601 | imsg.status = status; | |
602 | memset(&imsg.pad, 0, sizeof(imsg.pad)); | |
2d33f157 | 603 | |
d62a17ae | 604 | return msg_new(MSG_ISM_CHANGE, &imsg, seqnr, |
605 | sizeof(struct msg_ism_change)); | |
2d33f157 | 606 | } |
607 | ||
d7c0a89a | 608 | struct msg *new_msg_nsm_change(uint32_t seqnr, struct in_addr ifaddr, |
d62a17ae | 609 | struct in_addr nbraddr, struct in_addr router_id, |
d7c0a89a | 610 | uint8_t status) |
2d33f157 | 611 | { |
d62a17ae | 612 | struct msg_nsm_change nmsg; |
2d33f157 | 613 | |
d62a17ae | 614 | nmsg.ifaddr = ifaddr; |
615 | nmsg.nbraddr = nbraddr; | |
616 | nmsg.router_id = router_id; | |
617 | nmsg.status = status; | |
618 | memset(&nmsg.pad, 0, sizeof(nmsg.pad)); | |
2d33f157 | 619 | |
d62a17ae | 620 | return msg_new(MSG_NSM_CHANGE, &nmsg, seqnr, |
621 | sizeof(struct msg_nsm_change)); | |
2d33f157 | 622 | } |
623 | ||
d7c0a89a | 624 | struct msg *new_msg_lsa_change_notify(uint8_t msgtype, uint32_t seqnum, |
d62a17ae | 625 | struct in_addr ifaddr, |
626 | struct in_addr area_id, | |
d7c0a89a | 627 | uint8_t is_self_originated, |
d62a17ae | 628 | struct lsa_header *data) |
2d33f157 | 629 | { |
d7c0a89a | 630 | uint8_t buf[OSPF_API_MAX_MSG_SIZE]; |
d62a17ae | 631 | struct msg_lsa_change_notify *nmsg; |
632 | unsigned int len; | |
c23bc38a | 633 | size_t off_data = offsetof(struct msg_lsa_change_notify, data); |
634 | size_t data_maxs = sizeof(buf) - off_data; | |
635 | struct lsa_header *nmsg_data = (struct lsa_header *)&buf[off_data]; | |
d62a17ae | 636 | |
637 | assert(data); | |
638 | ||
639 | nmsg = (struct msg_lsa_change_notify *)buf; | |
640 | nmsg->ifaddr = ifaddr; | |
641 | nmsg->area_id = area_id; | |
642 | nmsg->is_self_originated = is_self_originated; | |
643 | memset(&nmsg->pad, 0, sizeof(nmsg->pad)); | |
644 | ||
645 | len = ntohs(data->length); | |
c23bc38a | 646 | if (len > data_maxs) |
647 | len = data_maxs; | |
648 | memcpy(nmsg_data, data, len); | |
d62a17ae | 649 | len += sizeof(struct msg_lsa_change_notify) - sizeof(struct lsa_header); |
650 | ||
651 | return msg_new(msgtype, nmsg, seqnum, len); | |
2d33f157 | 652 | } |
653 | ||
654 | #endif /* SUPPORT_OSPF_API */ |