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718e3744 | 1 | /* |
508e53e2 | 2 | * Copyright (C) 2003 Yasuhiro Ohara |
718e3744 | 3 | * |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | * Boston, MA 02111-1307, USA. | |
20 | */ | |
21 | ||
508e53e2 | 22 | #include <zebra.h> |
23 | ||
3b4cd3a9 | 24 | #include "memory.h" |
508e53e2 | 25 | #include "log.h" |
26 | #include "vty.h" | |
27 | #include "command.h" | |
28 | #include "thread.h" | |
29 | #include "linklist.h" | |
30 | ||
508e53e2 | 31 | #include "ospf6_proto.h" |
32 | #include "ospf6_lsa.h" | |
33 | #include "ospf6_lsdb.h" | |
34 | #include "ospf6_network.h" | |
35 | #include "ospf6_message.h" | |
718e3744 | 36 | |
508e53e2 | 37 | #include "ospf6_top.h" |
38 | #include "ospf6_area.h" | |
39 | #include "ospf6_neighbor.h" | |
40 | #include "ospf6_interface.h" | |
718e3744 | 41 | |
508e53e2 | 42 | #include "ospf6_flood.h" |
049207c3 | 43 | #include "ospf6d.h" |
718e3744 | 44 | |
508e53e2 | 45 | unsigned char conf_debug_ospf6_message[6] = {0x03, 0, 0, 0, 0, 0}; |
0c083ee9 | 46 | const char *ospf6_message_type_str[] = |
508e53e2 | 47 | { "Unknown", "Hello", "DbDesc", "LSReq", "LSUpdate", "LSAck" }; |
718e3744 | 48 | |
508e53e2 | 49 | /* print functions */ |
718e3744 | 50 | |
51 | static void | |
508e53e2 | 52 | ospf6_header_print (struct ospf6_header *oh) |
718e3744 | 53 | { |
508e53e2 | 54 | char router_id[16], area_id[16]; |
55 | inet_ntop (AF_INET, &oh->router_id, router_id, sizeof (router_id)); | |
56 | inet_ntop (AF_INET, &oh->area_id, area_id, sizeof (area_id)); | |
57 | ||
c6487d61 | 58 | zlog_debug (" OSPFv%d Type:%d Len:%hu Router-ID:%s", |
508e53e2 | 59 | oh->version, oh->type, ntohs (oh->length), router_id); |
c6487d61 | 60 | zlog_debug (" Area-ID:%s Cksum:%hx Instance-ID:%d", |
508e53e2 | 61 | area_id, ntohs (oh->checksum), oh->instance_id); |
718e3744 | 62 | } |
63 | ||
508e53e2 | 64 | void |
65 | ospf6_hello_print (struct ospf6_header *oh) | |
718e3744 | 66 | { |
718e3744 | 67 | struct ospf6_hello *hello; |
508e53e2 | 68 | char options[16]; |
69 | char drouter[16], bdrouter[16], neighbor[16]; | |
70 | char *p; | |
718e3744 | 71 | |
508e53e2 | 72 | ospf6_header_print (oh); |
73 | assert (oh->type == OSPF6_MESSAGE_TYPE_HELLO); | |
718e3744 | 74 | |
508e53e2 | 75 | hello = (struct ospf6_hello *) |
76 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 77 | |
508e53e2 | 78 | inet_ntop (AF_INET, &hello->drouter, drouter, sizeof (drouter)); |
79 | inet_ntop (AF_INET, &hello->bdrouter, bdrouter, sizeof (bdrouter)); | |
80 | ospf6_options_printbuf (hello->options, options, sizeof (options)); | |
718e3744 | 81 | |
c6487d61 | 82 | zlog_debug (" I/F-Id:%ld Priority:%d Option:%s", |
508e53e2 | 83 | (u_long) ntohl (hello->interface_id), hello->priority, options); |
c6487d61 | 84 | zlog_debug (" HelloInterval:%hu DeadInterval:%hu", |
508e53e2 | 85 | ntohs (hello->hello_interval), ntohs (hello->dead_interval)); |
c6487d61 | 86 | zlog_debug (" DR:%s BDR:%s", drouter, bdrouter); |
718e3744 | 87 | |
508e53e2 | 88 | for (p = (char *) ((caddr_t) hello + sizeof (struct ospf6_hello)); |
89 | p + sizeof (u_int32_t) <= OSPF6_MESSAGE_END (oh); | |
90 | p += sizeof (u_int32_t)) | |
718e3744 | 91 | { |
508e53e2 | 92 | inet_ntop (AF_INET, (void *) p, neighbor, sizeof (neighbor)); |
c6487d61 | 93 | zlog_debug (" Neighbor: %s", neighbor); |
718e3744 | 94 | } |
508e53e2 | 95 | |
96 | if (p != OSPF6_MESSAGE_END (oh)) | |
c6487d61 | 97 | zlog_debug ("Trailing garbage exists"); |
718e3744 | 98 | } |
99 | ||
508e53e2 | 100 | void |
101 | ospf6_dbdesc_print (struct ospf6_header *oh) | |
718e3744 | 102 | { |
718e3744 | 103 | struct ospf6_dbdesc *dbdesc; |
508e53e2 | 104 | char options[16]; |
105 | char *p; | |
106 | ||
107 | ospf6_header_print (oh); | |
108 | assert (oh->type == OSPF6_MESSAGE_TYPE_DBDESC); | |
109 | ||
110 | dbdesc = (struct ospf6_dbdesc *) | |
111 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
112 | ||
113 | ospf6_options_printbuf (dbdesc->options, options, sizeof (options)); | |
114 | ||
c6487d61 | 115 | zlog_debug (" MBZ: %#x Option: %s IfMTU: %hu", |
508e53e2 | 116 | dbdesc->reserved1, options, ntohs (dbdesc->ifmtu)); |
c6487d61 | 117 | zlog_debug (" MBZ: %#x Bits: %s%s%s SeqNum: %#lx", |
508e53e2 | 118 | dbdesc->reserved2, |
119 | (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT) ? "I" : "-"), | |
120 | (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MBIT) ? "M" : "-"), | |
121 | (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT) ? "m" : "s"), | |
122 | (u_long) ntohl (dbdesc->seqnum)); | |
123 | ||
124 | for (p = (char *) ((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc)); | |
125 | p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh); | |
126 | p += sizeof (struct ospf6_lsa_header)) | |
127 | ospf6_lsa_header_print_raw ((struct ospf6_lsa_header *) p); | |
128 | ||
129 | if (p != OSPF6_MESSAGE_END (oh)) | |
c6487d61 | 130 | zlog_debug ("Trailing garbage exists"); |
718e3744 | 131 | } |
132 | ||
508e53e2 | 133 | void |
134 | ospf6_lsreq_print (struct ospf6_header *oh) | |
718e3744 | 135 | { |
508e53e2 | 136 | char id[16], adv_router[16]; |
137 | char *p; | |
718e3744 | 138 | |
508e53e2 | 139 | ospf6_header_print (oh); |
140 | assert (oh->type == OSPF6_MESSAGE_TYPE_LSREQ); | |
718e3744 | 141 | |
508e53e2 | 142 | for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header)); |
143 | p + sizeof (struct ospf6_lsreq_entry) <= OSPF6_MESSAGE_END (oh); | |
144 | p += sizeof (struct ospf6_lsreq_entry)) | |
718e3744 | 145 | { |
508e53e2 | 146 | struct ospf6_lsreq_entry *e = (struct ospf6_lsreq_entry *) p; |
147 | inet_ntop (AF_INET, &e->adv_router, adv_router, sizeof (adv_router)); | |
148 | inet_ntop (AF_INET, &e->id, id, sizeof (id)); | |
c6487d61 | 149 | zlog_debug (" [%s Id:%s Adv:%s]", |
1e05838a | 150 | ospf6_lstype_name (e->type), id, adv_router); |
718e3744 | 151 | } |
508e53e2 | 152 | |
153 | if (p != OSPF6_MESSAGE_END (oh)) | |
c6487d61 | 154 | zlog_debug ("Trailing garbage exists"); |
718e3744 | 155 | } |
156 | ||
508e53e2 | 157 | void |
158 | ospf6_lsupdate_print (struct ospf6_header *oh) | |
718e3744 | 159 | { |
718e3744 | 160 | struct ospf6_lsupdate *lsupdate; |
508e53e2 | 161 | u_long num; |
162 | char *p; | |
718e3744 | 163 | |
508e53e2 | 164 | ospf6_header_print (oh); |
165 | assert (oh->type == OSPF6_MESSAGE_TYPE_LSUPDATE); | |
718e3744 | 166 | |
508e53e2 | 167 | lsupdate = (struct ospf6_lsupdate *) |
168 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 169 | |
508e53e2 | 170 | num = ntohl (lsupdate->lsa_number); |
c6487d61 | 171 | zlog_debug (" Number of LSA: %ld", num); |
718e3744 | 172 | |
508e53e2 | 173 | for (p = (char *) ((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate)); |
174 | p < OSPF6_MESSAGE_END (oh) && | |
175 | p + OSPF6_LSA_SIZE (p) <= OSPF6_MESSAGE_END (oh); | |
176 | p += OSPF6_LSA_SIZE (p)) | |
177 | { | |
178 | ospf6_lsa_header_print_raw ((struct ospf6_lsa_header *) p); | |
179 | if (OSPF6_LSA_SIZE (p) < sizeof (struct ospf6_lsa_header)) | |
180 | { | |
c6487d61 | 181 | zlog_debug (" Malformed LSA length, quit printing"); |
508e53e2 | 182 | break; |
183 | } | |
184 | } | |
718e3744 | 185 | |
508e53e2 | 186 | if (p != OSPF6_MESSAGE_END (oh)) |
718e3744 | 187 | { |
508e53e2 | 188 | char buf[32]; |
189 | ||
190 | int num = 0; | |
191 | memset (buf, 0, sizeof (buf)); | |
718e3744 | 192 | |
c6487d61 | 193 | zlog_debug (" Trailing garbage exists"); |
508e53e2 | 194 | while (p < OSPF6_MESSAGE_END (oh)) |
195 | { | |
196 | snprintf (buf, sizeof (buf), "%s %2x", buf, *p++); | |
197 | num++; | |
198 | if (num == 8) | |
199 | { | |
c6487d61 | 200 | zlog_debug (" %s", buf); |
508e53e2 | 201 | memset (buf, 0, sizeof (buf)); |
202 | num = 0; | |
203 | } | |
204 | } | |
205 | if (num) | |
c6487d61 | 206 | zlog_debug (" %s", buf); |
718e3744 | 207 | } |
208 | } | |
209 | ||
508e53e2 | 210 | void |
211 | ospf6_lsack_print (struct ospf6_header *oh) | |
718e3744 | 212 | { |
508e53e2 | 213 | char *p; |
718e3744 | 214 | |
508e53e2 | 215 | ospf6_header_print (oh); |
216 | assert (oh->type == OSPF6_MESSAGE_TYPE_LSACK); | |
718e3744 | 217 | |
508e53e2 | 218 | for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header)); |
219 | p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh); | |
220 | p += sizeof (struct ospf6_lsa_header)) | |
221 | ospf6_lsa_header_print_raw ((struct ospf6_lsa_header *) p); | |
222 | ||
223 | if (p != OSPF6_MESSAGE_END (oh)) | |
c6487d61 | 224 | zlog_debug ("Trailing garbage exists"); |
718e3744 | 225 | } |
226 | ||
508e53e2 | 227 | /* Receive function */ |
228 | #define MSG_OK 0 | |
229 | #define MSG_NG 1 | |
230 | static int | |
231 | ospf6_header_examin (struct in6_addr *src, struct in6_addr *dst, | |
232 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 233 | { |
718e3744 | 234 | u_char type; |
508e53e2 | 235 | type = OSPF6_MESSAGE_TYPE_CANONICAL (oh->type); |
718e3744 | 236 | |
508e53e2 | 237 | /* version check */ |
238 | if (oh->version != OSPFV3_VERSION) | |
239 | { | |
240 | if (IS_OSPF6_DEBUG_MESSAGE (type, RECV)) | |
c6487d61 | 241 | zlog_debug ("Message with unknown version"); |
508e53e2 | 242 | return MSG_NG; |
243 | } | |
718e3744 | 244 | |
508e53e2 | 245 | /* Area-ID check */ |
246 | if (oh->area_id != oi->area->area_id) | |
247 | { | |
6452df09 | 248 | if (oh->area_id == BACKBONE_AREA_ID) |
508e53e2 | 249 | { |
250 | if (IS_OSPF6_DEBUG_MESSAGE (type, RECV)) | |
c6487d61 | 251 | zlog_debug ("Message may be via Virtual Link: not supported"); |
508e53e2 | 252 | return MSG_NG; |
253 | } | |
718e3744 | 254 | |
508e53e2 | 255 | if (IS_OSPF6_DEBUG_MESSAGE (type, RECV)) |
c6487d61 | 256 | zlog_debug ("Area-ID mismatch"); |
508e53e2 | 257 | return MSG_NG; |
258 | } | |
718e3744 | 259 | |
508e53e2 | 260 | /* Instance-ID check */ |
261 | if (oh->instance_id != oi->instance_id) | |
262 | { | |
263 | if (IS_OSPF6_DEBUG_MESSAGE (type, RECV)) | |
c6487d61 | 264 | zlog_debug ("Instance-ID mismatch"); |
508e53e2 | 265 | return MSG_NG; |
266 | } | |
718e3744 | 267 | |
508e53e2 | 268 | /* Router-ID check */ |
269 | if (oh->router_id == oi->area->ospf6->router_id) | |
270 | zlog_warn ("Detect duplicate Router-ID"); | |
718e3744 | 271 | |
508e53e2 | 272 | return MSG_OK; |
718e3744 | 273 | } |
274 | ||
275 | void | |
508e53e2 | 276 | ospf6_hello_recv (struct in6_addr *src, struct in6_addr *dst, |
277 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 278 | { |
718e3744 | 279 | struct ospf6_hello *hello; |
508e53e2 | 280 | struct ospf6_neighbor *on; |
281 | char *p; | |
282 | int twoway = 0; | |
283 | int neighborchange = 0; | |
284 | int backupseen = 0; | |
285 | ||
286 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) | |
287 | return; | |
288 | ||
289 | hello = (struct ospf6_hello *) | |
290 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 291 | |
292 | /* HelloInterval check */ | |
508e53e2 | 293 | if (ntohs (hello->hello_interval) != oi->hello_interval) |
718e3744 | 294 | { |
508e53e2 | 295 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 296 | zlog_debug ("HelloInterval mismatch"); |
718e3744 | 297 | return; |
298 | } | |
299 | ||
300 | /* RouterDeadInterval check */ | |
508e53e2 | 301 | if (ntohs (hello->dead_interval) != oi->dead_interval) |
718e3744 | 302 | { |
508e53e2 | 303 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 304 | zlog_debug ("RouterDeadInterval mismatch"); |
718e3744 | 305 | return; |
306 | } | |
307 | ||
508e53e2 | 308 | /* E-bit check */ |
309 | if (OSPF6_OPT_ISSET (hello->options, OSPF6_OPT_E) != | |
310 | OSPF6_OPT_ISSET (oi->area->options, OSPF6_OPT_E)) | |
718e3744 | 311 | { |
508e53e2 | 312 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 313 | zlog_debug ("E-bit mismatch"); |
718e3744 | 314 | return; |
315 | } | |
316 | ||
508e53e2 | 317 | /* Find neighbor, create if not exist */ |
318 | on = ospf6_neighbor_lookup (oh->router_id, oi); | |
319 | if (on == NULL) | |
718e3744 | 320 | { |
508e53e2 | 321 | on = ospf6_neighbor_create (oh->router_id, oi); |
322 | on->prev_drouter = on->drouter = hello->drouter; | |
323 | on->prev_bdrouter = on->bdrouter = hello->bdrouter; | |
324 | on->priority = hello->priority; | |
325 | on->ifindex = ntohl (hello->interface_id); | |
326 | memcpy (&on->linklocal_addr, src, sizeof (struct in6_addr)); | |
718e3744 | 327 | } |
328 | ||
508e53e2 | 329 | /* TwoWay check */ |
330 | for (p = (char *) ((caddr_t) hello + sizeof (struct ospf6_hello)); | |
331 | p + sizeof (u_int32_t) <= OSPF6_MESSAGE_END (oh); | |
332 | p += sizeof (u_int32_t)) | |
718e3744 | 333 | { |
508e53e2 | 334 | u_int32_t *router_id = (u_int32_t *) p; |
335 | ||
336 | if (*router_id == oi->area->ospf6->router_id) | |
337 | twoway++; | |
718e3744 | 338 | } |
339 | ||
508e53e2 | 340 | if (p != OSPF6_MESSAGE_END (oh)) |
718e3744 | 341 | { |
508e53e2 | 342 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 343 | zlog_debug ("Trailing garbage ignored"); |
718e3744 | 344 | } |
345 | ||
508e53e2 | 346 | /* RouterPriority check */ |
347 | if (on->priority != hello->priority) | |
718e3744 | 348 | { |
508e53e2 | 349 | on->priority = hello->priority; |
350 | neighborchange++; | |
718e3744 | 351 | } |
352 | ||
508e53e2 | 353 | /* DR check */ |
354 | if (on->drouter != hello->drouter) | |
355 | { | |
356 | on->prev_drouter = on->drouter; | |
357 | on->drouter = hello->drouter; | |
358 | if (on->prev_drouter == on->router_id || on->drouter == on->router_id) | |
359 | neighborchange++; | |
360 | } | |
718e3744 | 361 | |
508e53e2 | 362 | /* BDR check */ |
363 | if (on->bdrouter != hello->bdrouter) | |
718e3744 | 364 | { |
508e53e2 | 365 | on->prev_bdrouter = on->bdrouter; |
366 | on->bdrouter = hello->bdrouter; | |
367 | if (on->prev_bdrouter == on->router_id || on->bdrouter == on->router_id) | |
368 | neighborchange++; | |
369 | } | |
718e3744 | 370 | |
508e53e2 | 371 | /* BackupSeen check */ |
372 | if (oi->state == OSPF6_INTERFACE_WAITING) | |
373 | { | |
374 | if (hello->bdrouter == on->router_id) | |
718e3744 | 375 | backupseen++; |
508e53e2 | 376 | else if (hello->drouter == on->router_id && hello->bdrouter == htonl (0)) |
718e3744 | 377 | backupseen++; |
378 | } | |
379 | ||
508e53e2 | 380 | /* Execute neighbor events */ |
381 | thread_execute (master, hello_received, on, 0); | |
382 | if (twoway) | |
383 | thread_execute (master, twoway_received, on, 0); | |
384 | else | |
385 | thread_execute (master, oneway_received, on, 0); | |
718e3744 | 386 | |
508e53e2 | 387 | /* Schedule interface events */ |
718e3744 | 388 | if (backupseen) |
508e53e2 | 389 | thread_add_event (master, backup_seen, oi, 0); |
390 | if (neighborchange) | |
391 | thread_add_event (master, neighbor_change, oi, 0); | |
718e3744 | 392 | } |
393 | ||
508e53e2 | 394 | static void |
395 | ospf6_dbdesc_recv_master (struct ospf6_header *oh, | |
396 | struct ospf6_neighbor *on) | |
718e3744 | 397 | { |
508e53e2 | 398 | struct ospf6_dbdesc *dbdesc; |
399 | char *p; | |
718e3744 | 400 | |
508e53e2 | 401 | dbdesc = (struct ospf6_dbdesc *) |
402 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
403 | ||
404 | if (on->state < OSPF6_NEIGHBOR_INIT) | |
718e3744 | 405 | { |
508e53e2 | 406 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 407 | zlog_debug ("Neighbor state less than Init, ignore"); |
508e53e2 | 408 | return; |
718e3744 | 409 | } |
718e3744 | 410 | |
508e53e2 | 411 | switch (on->state) |
412 | { | |
413 | case OSPF6_NEIGHBOR_TWOWAY: | |
414 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 415 | zlog_debug ("Neighbor state is 2-Way, ignore"); |
508e53e2 | 416 | return; |
718e3744 | 417 | |
508e53e2 | 418 | case OSPF6_NEIGHBOR_INIT: |
419 | thread_execute (master, twoway_received, on, 0); | |
420 | if (on->state != OSPF6_NEIGHBOR_EXSTART) | |
421 | { | |
422 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 423 | zlog_debug ("Neighbor state is not ExStart, ignore"); |
508e53e2 | 424 | return; |
425 | } | |
426 | /* else fall through to ExStart */ | |
427 | ||
428 | case OSPF6_NEIGHBOR_EXSTART: | |
429 | /* if neighbor obeys us as our slave, schedule negotiation_done | |
430 | and process LSA Headers. Otherwise, ignore this message */ | |
431 | if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT) && | |
432 | ! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT) && | |
433 | ntohl (dbdesc->seqnum) == on->dbdesc_seqnum) | |
434 | { | |
435 | /* execute NegotiationDone */ | |
436 | thread_execute (master, negotiation_done, on, 0); | |
718e3744 | 437 | |
508e53e2 | 438 | /* Record neighbor options */ |
439 | memcpy (on->options, dbdesc->options, sizeof (on->options)); | |
440 | } | |
441 | else | |
442 | { | |
443 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 444 | zlog_debug ("Negotiation failed"); |
508e53e2 | 445 | return; |
446 | } | |
447 | /* fall through to exchange */ | |
718e3744 | 448 | |
508e53e2 | 449 | case OSPF6_NEIGHBOR_EXCHANGE: |
450 | if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc))) | |
451 | { | |
452 | /* Duplicated DatabaseDescription is dropped by master */ | |
453 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 454 | zlog_debug ("Duplicated dbdesc discarded by Master, ignore"); |
508e53e2 | 455 | return; |
456 | } | |
718e3744 | 457 | |
508e53e2 | 458 | if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT)) |
459 | { | |
460 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 461 | zlog_debug ("Master/Slave bit mismatch"); |
508e53e2 | 462 | thread_add_event (master, seqnumber_mismatch, on, 0); |
463 | return; | |
464 | } | |
465 | ||
466 | if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT)) | |
467 | { | |
468 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 469 | zlog_debug ("Initialize bit mismatch"); |
508e53e2 | 470 | thread_add_event (master, seqnumber_mismatch, on, 0); |
471 | return; | |
472 | } | |
473 | ||
474 | if (memcmp (on->options, dbdesc->options, sizeof (on->options))) | |
475 | { | |
476 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 477 | zlog_debug ("Option field mismatch"); |
508e53e2 | 478 | thread_add_event (master, seqnumber_mismatch, on, 0); |
479 | return; | |
480 | } | |
481 | ||
482 | if (ntohl (dbdesc->seqnum) != on->dbdesc_seqnum) | |
483 | { | |
484 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 485 | zlog_debug ("Sequence number mismatch (%#lx expected)", |
508e53e2 | 486 | (u_long) on->dbdesc_seqnum); |
487 | thread_add_event (master, seqnumber_mismatch, on, 0); | |
488 | return; | |
489 | } | |
490 | break; | |
491 | ||
492 | case OSPF6_NEIGHBOR_LOADING: | |
493 | case OSPF6_NEIGHBOR_FULL: | |
494 | if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc))) | |
495 | { | |
496 | /* Duplicated DatabaseDescription is dropped by master */ | |
497 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 498 | zlog_debug ("Duplicated dbdesc discarded by Master, ignore"); |
508e53e2 | 499 | return; |
500 | } | |
501 | ||
502 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 503 | zlog_debug ("Not duplicate dbdesc in state %s", |
504 | ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 505 | thread_add_event (master, seqnumber_mismatch, on, 0); |
506 | return; | |
507 | ||
508 | default: | |
509 | assert (0); | |
510 | break; | |
718e3744 | 511 | } |
512 | ||
508e53e2 | 513 | /* Process LSA headers */ |
514 | for (p = (char *) ((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc)); | |
515 | p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh); | |
516 | p += sizeof (struct ospf6_lsa_header)) | |
718e3744 | 517 | { |
508e53e2 | 518 | struct ospf6_lsa *his, *mine; |
519 | struct ospf6_lsdb *lsdb = NULL; | |
520 | ||
521 | his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p); | |
6452df09 | 522 | |
523 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 524 | zlog_debug ("%s", his->name); |
6452df09 | 525 | |
526 | switch (OSPF6_LSA_SCOPE (his->header->type)) | |
508e53e2 | 527 | { |
6452df09 | 528 | case OSPF6_SCOPE_LINKLOCAL: |
529 | lsdb = on->ospf6_if->lsdb; | |
530 | break; | |
531 | case OSPF6_SCOPE_AREA: | |
532 | lsdb = on->ospf6_if->area->lsdb; | |
533 | break; | |
534 | case OSPF6_SCOPE_AS: | |
535 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
536 | break; | |
537 | case OSPF6_SCOPE_RESERVED: | |
538 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 539 | zlog_debug ("Ignoring LSA of reserved scope"); |
508e53e2 | 540 | ospf6_lsa_delete (his); |
6452df09 | 541 | continue; |
542 | break; | |
508e53e2 | 543 | } |
544 | ||
545 | if (ntohs (his->header->type) == OSPF6_LSTYPE_AS_EXTERNAL && | |
6452df09 | 546 | IS_AREA_STUB (on->ospf6_if->area)) |
718e3744 | 547 | { |
508e53e2 | 548 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 549 | zlog_debug ("SeqNumMismatch (E-bit mismatch), discard"); |
508e53e2 | 550 | ospf6_lsa_delete (his); |
551 | thread_add_event (master, seqnumber_mismatch, on, 0); | |
718e3744 | 552 | return; |
553 | } | |
508e53e2 | 554 | |
555 | mine = ospf6_lsdb_lookup (his->header->type, his->header->id, | |
556 | his->header->adv_router, lsdb); | |
6452df09 | 557 | if (mine == NULL) |
508e53e2 | 558 | { |
6452df09 | 559 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 560 | zlog_debug ("Add request (No database copy)"); |
6452df09 | 561 | ospf6_lsdb_add (his, on->request_list); |
562 | } | |
563 | else if (ospf6_lsa_compare (his, mine) < 0) | |
564 | { | |
565 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 566 | zlog_debug ("Add request (Received MoreRecent)"); |
508e53e2 | 567 | ospf6_lsdb_add (his, on->request_list); |
568 | } | |
569 | else | |
6452df09 | 570 | { |
571 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 572 | zlog_debug ("Discard (Existing MoreRecent)"); |
6452df09 | 573 | ospf6_lsa_delete (his); |
574 | } | |
718e3744 | 575 | } |
576 | ||
508e53e2 | 577 | if (p != OSPF6_MESSAGE_END (oh)) |
578 | { | |
579 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 580 | zlog_debug ("Trailing garbage ignored"); |
508e53e2 | 581 | } |
718e3744 | 582 | |
508e53e2 | 583 | /* Increment sequence number */ |
584 | on->dbdesc_seqnum ++; | |
718e3744 | 585 | |
508e53e2 | 586 | /* schedule send lsreq */ |
587 | if (on->thread_send_lsreq == NULL) | |
588 | on->thread_send_lsreq = | |
589 | thread_add_event (master, ospf6_lsreq_send, on, 0); | |
718e3744 | 590 | |
508e53e2 | 591 | THREAD_OFF (on->thread_send_dbdesc); |
718e3744 | 592 | |
508e53e2 | 593 | /* More bit check */ |
594 | if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MBIT) && | |
595 | ! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT)) | |
596 | thread_add_event (master, exchange_done, on, 0); | |
597 | else | |
598 | on->thread_send_dbdesc = | |
599 | thread_add_event (master, ospf6_dbdesc_send_newone, on, 0); | |
718e3744 | 600 | |
508e53e2 | 601 | /* save last received dbdesc */ |
602 | memcpy (&on->dbdesc_last, dbdesc, sizeof (struct ospf6_dbdesc)); | |
718e3744 | 603 | } |
604 | ||
508e53e2 | 605 | static void |
606 | ospf6_dbdesc_recv_slave (struct ospf6_header *oh, | |
607 | struct ospf6_neighbor *on) | |
718e3744 | 608 | { |
718e3744 | 609 | struct ospf6_dbdesc *dbdesc; |
508e53e2 | 610 | char *p; |
718e3744 | 611 | |
508e53e2 | 612 | dbdesc = (struct ospf6_dbdesc *) |
613 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
614 | ||
615 | if (on->state < OSPF6_NEIGHBOR_INIT) | |
616 | { | |
617 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 618 | zlog_debug ("Neighbor state less than Init, ignore"); |
508e53e2 | 619 | return; |
620 | } | |
718e3744 | 621 | |
508e53e2 | 622 | switch (on->state) |
623 | { | |
624 | case OSPF6_NEIGHBOR_TWOWAY: | |
625 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 626 | zlog_debug ("Neighbor state is 2-Way, ignore"); |
508e53e2 | 627 | return; |
718e3744 | 628 | |
508e53e2 | 629 | case OSPF6_NEIGHBOR_INIT: |
630 | thread_execute (master, twoway_received, on, 0); | |
631 | if (on->state != OSPF6_NEIGHBOR_EXSTART) | |
632 | { | |
633 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 634 | zlog_debug ("Neighbor state is not ExStart, ignore"); |
508e53e2 | 635 | return; |
636 | } | |
637 | /* else fall through to ExStart */ | |
638 | ||
639 | case OSPF6_NEIGHBOR_EXSTART: | |
640 | /* If the neighbor is Master, act as Slave. Schedule negotiation_done | |
641 | and process LSA Headers. Otherwise, ignore this message */ | |
642 | if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT) && | |
643 | CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MBIT) && | |
644 | CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT) && | |
645 | ntohs (oh->length) == sizeof (struct ospf6_header) + | |
646 | sizeof (struct ospf6_dbdesc)) | |
647 | { | |
648 | /* set the master/slave bit to slave */ | |
649 | UNSET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT); | |
650 | ||
651 | /* set the DD sequence number to one specified by master */ | |
652 | on->dbdesc_seqnum = ntohl (dbdesc->seqnum); | |
653 | ||
654 | /* schedule NegotiationDone */ | |
655 | thread_execute (master, negotiation_done, on, 0); | |
656 | ||
657 | /* Record neighbor options */ | |
658 | memcpy (on->options, dbdesc->options, sizeof (on->options)); | |
659 | } | |
660 | else | |
661 | { | |
662 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 663 | zlog_debug ("Negotiation failed"); |
508e53e2 | 664 | return; |
665 | } | |
666 | break; | |
667 | ||
668 | case OSPF6_NEIGHBOR_EXCHANGE: | |
669 | if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc))) | |
670 | { | |
671 | /* Duplicated DatabaseDescription causes slave to retransmit */ | |
672 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 673 | zlog_debug ("Duplicated dbdesc causes retransmit"); |
508e53e2 | 674 | THREAD_OFF (on->thread_send_dbdesc); |
675 | on->thread_send_dbdesc = | |
676 | thread_add_event (master, ospf6_dbdesc_send, on, 0); | |
677 | return; | |
678 | } | |
679 | ||
680 | if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT)) | |
681 | { | |
682 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 683 | zlog_debug ("Master/Slave bit mismatch"); |
508e53e2 | 684 | thread_add_event (master, seqnumber_mismatch, on, 0); |
685 | return; | |
686 | } | |
687 | ||
688 | if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT)) | |
689 | { | |
690 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 691 | zlog_debug ("Initialize bit mismatch"); |
508e53e2 | 692 | thread_add_event (master, seqnumber_mismatch, on, 0); |
693 | return; | |
694 | } | |
695 | ||
696 | if (memcmp (on->options, dbdesc->options, sizeof (on->options))) | |
697 | { | |
698 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 699 | zlog_debug ("Option field mismatch"); |
508e53e2 | 700 | thread_add_event (master, seqnumber_mismatch, on, 0); |
701 | return; | |
702 | } | |
703 | ||
704 | if (ntohl (dbdesc->seqnum) != on->dbdesc_seqnum + 1) | |
705 | { | |
706 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 707 | zlog_debug ("Sequence number mismatch (%#lx expected)", |
708 | (u_long) on->dbdesc_seqnum + 1); | |
508e53e2 | 709 | thread_add_event (master, seqnumber_mismatch, on, 0); |
710 | return; | |
711 | } | |
712 | break; | |
713 | ||
714 | case OSPF6_NEIGHBOR_LOADING: | |
715 | case OSPF6_NEIGHBOR_FULL: | |
716 | if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc))) | |
717 | { | |
718 | /* Duplicated DatabaseDescription causes slave to retransmit */ | |
719 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 720 | zlog_debug ("Duplicated dbdesc causes retransmit"); |
508e53e2 | 721 | THREAD_OFF (on->thread_send_dbdesc); |
722 | on->thread_send_dbdesc = | |
723 | thread_add_event (master, ospf6_dbdesc_send, on, 0); | |
724 | return; | |
725 | } | |
726 | ||
727 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 728 | zlog_debug ("Not duplicate dbdesc in state %s", |
729 | ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 730 | thread_add_event (master, seqnumber_mismatch, on, 0); |
731 | return; | |
732 | ||
733 | default: | |
734 | assert (0); | |
735 | break; | |
718e3744 | 736 | } |
737 | ||
508e53e2 | 738 | /* Process LSA headers */ |
739 | for (p = (char *) ((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc)); | |
740 | p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh); | |
741 | p += sizeof (struct ospf6_lsa_header)) | |
718e3744 | 742 | { |
508e53e2 | 743 | struct ospf6_lsa *his, *mine; |
744 | struct ospf6_lsdb *lsdb = NULL; | |
745 | ||
746 | his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p); | |
6452df09 | 747 | |
748 | switch (OSPF6_LSA_SCOPE (his->header->type)) | |
508e53e2 | 749 | { |
6452df09 | 750 | case OSPF6_SCOPE_LINKLOCAL: |
751 | lsdb = on->ospf6_if->lsdb; | |
752 | break; | |
753 | case OSPF6_SCOPE_AREA: | |
754 | lsdb = on->ospf6_if->area->lsdb; | |
755 | break; | |
756 | case OSPF6_SCOPE_AS: | |
757 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
758 | break; | |
759 | case OSPF6_SCOPE_RESERVED: | |
760 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 761 | zlog_debug ("Ignoring LSA of reserved scope"); |
508e53e2 | 762 | ospf6_lsa_delete (his); |
6452df09 | 763 | continue; |
764 | break; | |
508e53e2 | 765 | } |
766 | ||
6452df09 | 767 | if (OSPF6_LSA_SCOPE (his->header->type) == OSPF6_SCOPE_AS && |
768 | IS_AREA_STUB (on->ospf6_if->area)) | |
718e3744 | 769 | { |
508e53e2 | 770 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 771 | zlog_debug ("E-bit mismatch with LSA Headers"); |
508e53e2 | 772 | ospf6_lsa_delete (his); |
773 | thread_add_event (master, seqnumber_mismatch, on, 0); | |
718e3744 | 774 | return; |
775 | } | |
508e53e2 | 776 | |
777 | mine = ospf6_lsdb_lookup (his->header->type, his->header->id, | |
778 | his->header->adv_router, lsdb); | |
779 | if (mine == NULL || ospf6_lsa_compare (his, mine) < 0) | |
780 | { | |
6452df09 | 781 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 782 | zlog_debug ("Add request-list: %s", his->name); |
508e53e2 | 783 | ospf6_lsdb_add (his, on->request_list); |
784 | } | |
785 | else | |
786 | ospf6_lsa_delete (his); | |
718e3744 | 787 | } |
788 | ||
508e53e2 | 789 | if (p != OSPF6_MESSAGE_END (oh)) |
790 | { | |
791 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 792 | zlog_debug ("Trailing garbage ignored"); |
508e53e2 | 793 | } |
718e3744 | 794 | |
508e53e2 | 795 | /* Set sequence number to Master's */ |
796 | on->dbdesc_seqnum = ntohl (dbdesc->seqnum); | |
718e3744 | 797 | |
508e53e2 | 798 | /* schedule send lsreq */ |
799 | if (on->thread_send_lsreq == NULL) | |
800 | on->thread_send_lsreq = | |
801 | thread_add_event (master, ospf6_lsreq_send, on, 0); | |
718e3744 | 802 | |
508e53e2 | 803 | THREAD_OFF (on->thread_send_dbdesc); |
804 | on->thread_send_dbdesc = | |
805 | thread_add_event (master, ospf6_dbdesc_send_newone, on, 0); | |
718e3744 | 806 | |
508e53e2 | 807 | /* save last received dbdesc */ |
808 | memcpy (&on->dbdesc_last, dbdesc, sizeof (struct ospf6_dbdesc)); | |
718e3744 | 809 | } |
810 | ||
811 | void | |
508e53e2 | 812 | ospf6_dbdesc_recv (struct in6_addr *src, struct in6_addr *dst, |
813 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 814 | { |
508e53e2 | 815 | struct ospf6_neighbor *on; |
718e3744 | 816 | struct ospf6_dbdesc *dbdesc; |
718e3744 | 817 | |
508e53e2 | 818 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) |
819 | return; | |
718e3744 | 820 | |
508e53e2 | 821 | on = ospf6_neighbor_lookup (oh->router_id, oi); |
822 | if (on == NULL) | |
718e3744 | 823 | { |
508e53e2 | 824 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 825 | zlog_debug ("Neighbor not found, ignore"); |
718e3744 | 826 | return; |
827 | } | |
828 | ||
508e53e2 | 829 | if (memcmp (src, &on->linklocal_addr, sizeof (struct in6_addr))) |
718e3744 | 830 | { |
508e53e2 | 831 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 832 | zlog_debug ("Seems to be from Secondary I/F of the neighbor, ignore"); |
718e3744 | 833 | return; |
834 | } | |
835 | ||
508e53e2 | 836 | dbdesc = (struct ospf6_dbdesc *) |
837 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 838 | |
508e53e2 | 839 | /* Interface MTU check */ |
840 | if (ntohs (dbdesc->ifmtu) != oi->ifmtu) | |
718e3744 | 841 | { |
508e53e2 | 842 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 843 | zlog_debug ("I/F MTU mismatch"); |
508e53e2 | 844 | return; |
718e3744 | 845 | } |
846 | ||
508e53e2 | 847 | if (dbdesc->reserved1 || dbdesc->reserved2) |
848 | { | |
849 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 850 | zlog_debug ("Non-0 reserved field in %s's DbDesc, correct", |
851 | on->name); | |
508e53e2 | 852 | dbdesc->reserved1 = 0; |
853 | dbdesc->reserved2 = 0; | |
854 | } | |
718e3744 | 855 | |
508e53e2 | 856 | if (ntohl (oh->router_id) < ntohl (ospf6->router_id)) |
857 | ospf6_dbdesc_recv_master (oh, on); | |
858 | else if (ntohl (ospf6->router_id) < ntohl (oh->router_id)) | |
859 | ospf6_dbdesc_recv_slave (oh, on); | |
860 | else | |
861 | { | |
862 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 863 | zlog_debug ("Can't decide which is master, ignore"); |
508e53e2 | 864 | } |
718e3744 | 865 | } |
866 | ||
867 | void | |
508e53e2 | 868 | ospf6_lsreq_recv (struct in6_addr *src, struct in6_addr *dst, |
869 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 870 | { |
508e53e2 | 871 | struct ospf6_neighbor *on; |
872 | char *p; | |
873 | struct ospf6_lsreq_entry *e; | |
508e53e2 | 874 | struct ospf6_lsdb *lsdb = NULL; |
718e3744 | 875 | struct ospf6_lsa *lsa; |
718e3744 | 876 | |
508e53e2 | 877 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) |
878 | return; | |
718e3744 | 879 | |
508e53e2 | 880 | on = ospf6_neighbor_lookup (oh->router_id, oi); |
881 | if (on == NULL) | |
718e3744 | 882 | { |
508e53e2 | 883 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 884 | zlog_debug ("Neighbor not found, ignore"); |
718e3744 | 885 | return; |
886 | } | |
887 | ||
508e53e2 | 888 | if (memcmp (src, &on->linklocal_addr, sizeof (struct in6_addr))) |
718e3744 | 889 | { |
508e53e2 | 890 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 891 | zlog_debug ("Seems to be from Secondary I/F of the neighbor, ignore"); |
718e3744 | 892 | return; |
893 | } | |
894 | ||
508e53e2 | 895 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE && |
896 | on->state != OSPF6_NEIGHBOR_LOADING && | |
897 | on->state != OSPF6_NEIGHBOR_FULL) | |
718e3744 | 898 | { |
508e53e2 | 899 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 900 | zlog_debug ("Neighbor state less than Exchange, ignore"); |
718e3744 | 901 | return; |
902 | } | |
903 | ||
508e53e2 | 904 | /* Process each request */ |
905 | for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header)); | |
906 | p + sizeof (struct ospf6_lsreq_entry) <= OSPF6_MESSAGE_END (oh); | |
907 | p += sizeof (struct ospf6_lsreq_entry)) | |
718e3744 | 908 | { |
508e53e2 | 909 | e = (struct ospf6_lsreq_entry *) p; |
6452df09 | 910 | |
911 | switch (OSPF6_LSA_SCOPE (e->type)) | |
912 | { | |
913 | case OSPF6_SCOPE_LINKLOCAL: | |
914 | lsdb = on->ospf6_if->lsdb; | |
915 | break; | |
916 | case OSPF6_SCOPE_AREA: | |
917 | lsdb = on->ospf6_if->area->lsdb; | |
918 | break; | |
919 | case OSPF6_SCOPE_AS: | |
920 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
921 | break; | |
922 | default: | |
923 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 924 | zlog_debug ("Ignoring LSA of reserved scope"); |
6452df09 | 925 | continue; |
926 | break; | |
927 | } | |
718e3744 | 928 | |
508e53e2 | 929 | /* Find database copy */ |
930 | lsa = ospf6_lsdb_lookup (e->type, e->id, e->adv_router, lsdb); | |
931 | if (lsa == NULL) | |
718e3744 | 932 | { |
508e53e2 | 933 | char id[16], adv_router[16]; |
934 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
935 | { | |
936 | inet_ntop (AF_INET, &e->id, id, sizeof (id)); | |
937 | inet_ntop (AF_INET, &e->adv_router, adv_router, | |
938 | sizeof (adv_router)); | |
c6487d61 | 939 | zlog_debug ("Can't find requested [%s Id:%s Adv:%s]", |
940 | ospf6_lstype_name (e->type), id, adv_router); | |
508e53e2 | 941 | } |
942 | thread_add_event (master, bad_lsreq, on, 0); | |
718e3744 | 943 | return; |
944 | } | |
945 | ||
508e53e2 | 946 | ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->lsupdate_list); |
718e3744 | 947 | } |
948 | ||
508e53e2 | 949 | if (p != OSPF6_MESSAGE_END (oh)) |
718e3744 | 950 | { |
508e53e2 | 951 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 952 | zlog_debug ("Trailing garbage ignored"); |
718e3744 | 953 | } |
954 | ||
508e53e2 | 955 | /* schedule send lsupdate */ |
956 | THREAD_OFF (on->thread_send_lsupdate); | |
957 | on->thread_send_lsupdate = | |
958 | thread_add_event (master, ospf6_lsupdate_send_neighbor, on, 0); | |
718e3744 | 959 | } |
960 | ||
961 | void | |
508e53e2 | 962 | ospf6_lsupdate_recv (struct in6_addr *src, struct in6_addr *dst, |
963 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 964 | { |
508e53e2 | 965 | struct ospf6_neighbor *on; |
718e3744 | 966 | struct ospf6_lsupdate *lsupdate; |
508e53e2 | 967 | unsigned long num; |
968 | char *p; | |
718e3744 | 969 | |
508e53e2 | 970 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) |
971 | return; | |
718e3744 | 972 | |
508e53e2 | 973 | on = ospf6_neighbor_lookup (oh->router_id, oi); |
974 | if (on == NULL) | |
718e3744 | 975 | { |
508e53e2 | 976 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 977 | zlog_debug ("Neighbor not found, ignore"); |
718e3744 | 978 | return; |
979 | } | |
980 | ||
508e53e2 | 981 | if (memcmp (src, &on->linklocal_addr, sizeof (struct in6_addr))) |
718e3744 | 982 | { |
508e53e2 | 983 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 984 | zlog_debug ("Seems to be from Secondary I/F of the neighbor, ignore"); |
718e3744 | 985 | return; |
986 | } | |
987 | ||
508e53e2 | 988 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE && |
989 | on->state != OSPF6_NEIGHBOR_LOADING && | |
990 | on->state != OSPF6_NEIGHBOR_FULL) | |
718e3744 | 991 | { |
508e53e2 | 992 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 993 | zlog_debug ("Neighbor state less than Exchange, ignore"); |
718e3744 | 994 | return; |
995 | } | |
996 | ||
508e53e2 | 997 | lsupdate = (struct ospf6_lsupdate *) |
998 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 999 | |
508e53e2 | 1000 | num = ntohl (lsupdate->lsa_number); |
718e3744 | 1001 | |
508e53e2 | 1002 | /* Process LSAs */ |
1003 | for (p = (char *) ((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate)); | |
1004 | p < OSPF6_MESSAGE_END (oh) && | |
1005 | p + OSPF6_LSA_SIZE (p) <= OSPF6_MESSAGE_END (oh); | |
1006 | p += OSPF6_LSA_SIZE (p)) | |
1007 | { | |
1008 | if (num == 0) | |
1009 | break; | |
1010 | if (OSPF6_LSA_SIZE (p) < sizeof (struct ospf6_lsa_header)) | |
1011 | { | |
1012 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1013 | zlog_debug ("Malformed LSA length, quit processing"); |
508e53e2 | 1014 | break; |
1015 | } | |
1016 | ||
6452df09 | 1017 | ospf6_receive_lsa (on, (struct ospf6_lsa_header *) p); |
508e53e2 | 1018 | num--; |
1019 | } | |
1020 | ||
1021 | if (num != 0) | |
1022 | { | |
1023 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1024 | zlog_debug ("Malformed LSA number or LSA length"); |
508e53e2 | 1025 | } |
1026 | if (p != OSPF6_MESSAGE_END (oh)) | |
1027 | { | |
1028 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1029 | zlog_debug ("Trailing garbage ignored"); |
508e53e2 | 1030 | } |
718e3744 | 1031 | |
1032 | /* RFC2328 Section 10.9: When the neighbor responds to these requests | |
1033 | with the proper Link State Update packet(s), the Link state request | |
1034 | list is truncated and a new Link State Request packet is sent. */ | |
508e53e2 | 1035 | /* send new Link State Request packet if this LS Update packet |
1036 | can be recognized as a response to our previous LS Request */ | |
1037 | if (! IN6_IS_ADDR_MULTICAST (dst) && | |
1038 | (on->state == OSPF6_NEIGHBOR_EXCHANGE || | |
1039 | on->state == OSPF6_NEIGHBOR_LOADING)) | |
1040 | { | |
1041 | THREAD_OFF (on->thread_send_lsreq); | |
1042 | on->thread_send_lsreq = | |
1043 | thread_add_event (master, ospf6_lsreq_send, on, 0); | |
1044 | } | |
1045 | } | |
1046 | ||
1047 | void | |
1048 | ospf6_lsack_recv (struct in6_addr *src, struct in6_addr *dst, | |
1049 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
1050 | { | |
1051 | struct ospf6_neighbor *on; | |
1052 | char *p; | |
1053 | struct ospf6_lsa *his, *mine; | |
1054 | struct ospf6_lsdb *lsdb = NULL; | |
1055 | ||
1056 | assert (oh->type == OSPF6_MESSAGE_TYPE_LSACK); | |
1057 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) | |
1058 | return; | |
1059 | ||
1060 | on = ospf6_neighbor_lookup (oh->router_id, oi); | |
1061 | if (on == NULL) | |
1062 | { | |
1063 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1064 | zlog_debug ("Neighbor not found, ignore"); |
508e53e2 | 1065 | return; |
1066 | } | |
1067 | ||
1068 | if (memcmp (src, &on->linklocal_addr, sizeof (struct in6_addr))) | |
1069 | { | |
1070 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1071 | zlog_debug ("Seems to be from Secondary I/F of the neighbor, ignore"); |
508e53e2 | 1072 | return; |
1073 | } | |
718e3744 | 1074 | |
508e53e2 | 1075 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE && |
1076 | on->state != OSPF6_NEIGHBOR_LOADING && | |
1077 | on->state != OSPF6_NEIGHBOR_FULL) | |
718e3744 | 1078 | { |
508e53e2 | 1079 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 1080 | zlog_debug ("Neighbor state less than Exchange, ignore"); |
508e53e2 | 1081 | return; |
718e3744 | 1082 | } |
1083 | ||
508e53e2 | 1084 | for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header)); |
1085 | p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh); | |
1086 | p += sizeof (struct ospf6_lsa_header)) | |
1087 | { | |
1088 | his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p); | |
508e53e2 | 1089 | |
6452df09 | 1090 | switch (OSPF6_LSA_SCOPE (his->header->type)) |
1091 | { | |
1092 | case OSPF6_SCOPE_LINKLOCAL: | |
1093 | lsdb = on->ospf6_if->lsdb; | |
1094 | break; | |
1095 | case OSPF6_SCOPE_AREA: | |
1096 | lsdb = on->ospf6_if->area->lsdb; | |
1097 | break; | |
1098 | case OSPF6_SCOPE_AS: | |
1099 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
1100 | break; | |
1101 | case OSPF6_SCOPE_RESERVED: | |
1102 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1103 | zlog_debug ("Ignoring LSA of reserved scope"); |
6452df09 | 1104 | ospf6_lsa_delete (his); |
1105 | continue; | |
1106 | break; | |
1107 | } | |
1108 | ||
1109 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1110 | zlog_debug ("%s acknowledged by %s", his->name, on->name); |
508e53e2 | 1111 | |
1112 | /* Find database copy */ | |
1113 | mine = ospf6_lsdb_lookup (his->header->type, his->header->id, | |
1114 | his->header->adv_router, lsdb); | |
1115 | if (mine == NULL) | |
1116 | { | |
1117 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1118 | zlog_debug ("No database copy"); |
508e53e2 | 1119 | ospf6_lsa_delete (his); |
1120 | continue; | |
1121 | } | |
1122 | ||
1123 | /* Check if the LSA is on his retrans-list */ | |
1124 | mine = ospf6_lsdb_lookup (his->header->type, his->header->id, | |
1125 | his->header->adv_router, on->retrans_list); | |
1126 | if (mine == NULL) | |
1127 | { | |
1128 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1129 | zlog_debug ("Not on %s's retrans-list", on->name); |
508e53e2 | 1130 | ospf6_lsa_delete (his); |
1131 | continue; | |
1132 | } | |
1133 | ||
1134 | if (ospf6_lsa_compare (his, mine) != 0) | |
1135 | { | |
1136 | /* Log this questionable acknowledgement, | |
1137 | and examine the next one. */ | |
1138 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1139 | zlog_debug ("Questionable acknowledgement"); |
508e53e2 | 1140 | ospf6_lsa_delete (his); |
1141 | continue; | |
1142 | } | |
1143 | ||
6452df09 | 1144 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 1145 | zlog_debug ("Acknowledged, remove from %s's retrans-list", |
1146 | on->name); | |
508e53e2 | 1147 | |
1148 | if (OSPF6_LSA_IS_MAXAGE (mine)) | |
1149 | ospf6_maxage_remove (on->ospf6_if->area->ospf6); | |
1150 | ||
6452df09 | 1151 | ospf6_decrement_retrans_count (mine); |
508e53e2 | 1152 | ospf6_lsdb_remove (mine, on->retrans_list); |
1153 | ospf6_lsa_delete (his); | |
1154 | } | |
1155 | ||
1156 | if (p != OSPF6_MESSAGE_END (oh)) | |
1157 | { | |
1158 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1159 | zlog_debug ("Trailing garbage ignored"); |
508e53e2 | 1160 | } |
1161 | } | |
1162 | ||
0c083ee9 | 1163 | u_char *recvbuf = NULL; |
1164 | u_char *sendbuf = NULL; | |
1165 | unsigned int iobuflen = 0; | |
3b4cd3a9 | 1166 | |
1167 | int | |
0c083ee9 | 1168 | ospf6_iobuf_size (unsigned int size) |
3b4cd3a9 | 1169 | { |
1170 | char *recvnew, *sendnew; | |
1171 | ||
1172 | if (size <= iobuflen) | |
1173 | return iobuflen; | |
1174 | ||
1175 | recvnew = XMALLOC (MTYPE_OSPF6_MESSAGE, size); | |
1176 | sendnew = XMALLOC (MTYPE_OSPF6_MESSAGE, size); | |
1177 | if (recvnew == NULL || sendnew == NULL) | |
1178 | { | |
b596c71e | 1179 | if (recvnew) |
1180 | XFREE (MTYPE_OSPF6_MESSAGE, recvnew); | |
1181 | if (sendnew) | |
1182 | XFREE (MTYPE_OSPF6_MESSAGE, sendnew); | |
c6487d61 | 1183 | zlog_debug ("Could not allocate I/O buffer of size %d.", size); |
3b4cd3a9 | 1184 | return iobuflen; |
1185 | } | |
1186 | ||
1187 | if (recvbuf) | |
1188 | XFREE (MTYPE_OSPF6_MESSAGE, recvbuf); | |
1189 | if (sendbuf) | |
1190 | XFREE (MTYPE_OSPF6_MESSAGE, sendbuf); | |
1191 | recvbuf = recvnew; | |
1192 | sendbuf = sendnew; | |
1193 | iobuflen = size; | |
1194 | ||
1195 | return iobuflen; | |
1196 | } | |
508e53e2 | 1197 | |
1198 | int | |
1199 | ospf6_receive (struct thread *thread) | |
1200 | { | |
0c083ee9 | 1201 | int sockfd; |
1202 | unsigned int len; | |
508e53e2 | 1203 | char srcname[64], dstname[64]; |
1204 | struct in6_addr src, dst; | |
1205 | unsigned int ifindex; | |
1206 | struct iovec iovector[2]; | |
1207 | struct ospf6_interface *oi; | |
1208 | struct ospf6_header *oh; | |
1209 | ||
1210 | /* add next read thread */ | |
1211 | sockfd = THREAD_FD (thread); | |
1212 | thread_add_read (master, ospf6_receive, NULL, sockfd); | |
1213 | ||
1214 | /* initialize */ | |
3b4cd3a9 | 1215 | memset (recvbuf, 0, iobuflen); |
508e53e2 | 1216 | iovector[0].iov_base = recvbuf; |
3b4cd3a9 | 1217 | iovector[0].iov_len = iobuflen; |
508e53e2 | 1218 | iovector[1].iov_base = NULL; |
1219 | iovector[1].iov_len = 0; | |
1220 | ||
1221 | /* receive message */ | |
1222 | len = ospf6_recvmsg (&src, &dst, &ifindex, iovector); | |
3b4cd3a9 | 1223 | if (len > iobuflen) |
508e53e2 | 1224 | { |
1225 | zlog_err ("Excess message read"); | |
1226 | return 0; | |
1227 | } | |
1228 | else if (len < sizeof (struct ospf6_header)) | |
1229 | { | |
1230 | zlog_err ("Deficient message read"); | |
1231 | return 0; | |
1232 | } | |
1233 | ||
1234 | oi = ospf6_interface_lookup_by_ifindex (ifindex); | |
1235 | if (oi == NULL || oi->area == NULL) | |
1236 | { | |
c6487d61 | 1237 | zlog_debug ("Message received on disabled interface"); |
508e53e2 | 1238 | return 0; |
1239 | } | |
1240 | ||
1241 | oh = (struct ospf6_header *) recvbuf; | |
1242 | ||
1243 | /* Log */ | |
1244 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
1245 | { | |
1246 | inet_ntop (AF_INET6, &src, srcname, sizeof (srcname)); | |
1247 | inet_ntop (AF_INET6, &dst, dstname, sizeof (dstname)); | |
c6487d61 | 1248 | zlog_debug ("%s received on %s", |
508e53e2 | 1249 | OSPF6_MESSAGE_TYPE_NAME (oh->type), oi->interface->name); |
c6487d61 | 1250 | zlog_debug (" src: %s", srcname); |
1251 | zlog_debug (" dst: %s", dstname); | |
508e53e2 | 1252 | if (len != ntohs (oh->length)) |
c6487d61 | 1253 | zlog_debug ("Message length does not match actually received: %d", len); |
508e53e2 | 1254 | |
1255 | switch (oh->type) | |
1256 | { | |
1257 | case OSPF6_MESSAGE_TYPE_HELLO: | |
1258 | ospf6_hello_print (oh); | |
1259 | break; | |
1260 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1261 | ospf6_dbdesc_print (oh); | |
1262 | break; | |
1263 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1264 | ospf6_lsreq_print (oh); | |
1265 | break; | |
1266 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1267 | ospf6_lsupdate_print (oh); | |
1268 | break; | |
1269 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1270 | ospf6_lsack_print (oh); | |
1271 | break; | |
1272 | default: | |
c6487d61 | 1273 | zlog_debug ("Unknown message"); |
508e53e2 | 1274 | break; |
1275 | } | |
1276 | } | |
1277 | ||
1278 | if (CHECK_FLAG (oi->flag, OSPF6_INTERFACE_PASSIVE)) | |
1279 | { | |
1280 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1281 | zlog_debug ("Ignore message on passive interface %s", |
508e53e2 | 1282 | oi->interface->name); |
1283 | return 0; | |
1284 | } | |
1285 | ||
1286 | switch (oh->type) | |
1287 | { | |
1288 | case OSPF6_MESSAGE_TYPE_HELLO: | |
1289 | ospf6_hello_recv (&src, &dst, oi, oh); | |
1290 | break; | |
1291 | ||
1292 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1293 | ospf6_dbdesc_recv (&src, &dst, oi, oh); | |
1294 | break; | |
1295 | ||
1296 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1297 | ospf6_lsreq_recv (&src, &dst, oi, oh); | |
1298 | break; | |
1299 | ||
1300 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1301 | ospf6_lsupdate_recv (&src, &dst, oi, oh); | |
1302 | break; | |
1303 | ||
1304 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1305 | ospf6_lsack_recv (&src, &dst, oi, oh); | |
1306 | break; | |
1307 | ||
1308 | default: | |
1309 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) | |
c6487d61 | 1310 | zlog_debug ("Unknown message"); |
508e53e2 | 1311 | break; |
1312 | } | |
718e3744 | 1313 | |
508e53e2 | 1314 | return 0; |
718e3744 | 1315 | } |
1316 | ||
1317 | void | |
508e53e2 | 1318 | ospf6_send (struct in6_addr *src, struct in6_addr *dst, |
1319 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 1320 | { |
508e53e2 | 1321 | int len; |
1322 | char srcname[64], dstname[64]; | |
1323 | struct iovec iovector[2]; | |
718e3744 | 1324 | |
508e53e2 | 1325 | /* initialize */ |
1326 | iovector[0].iov_base = (caddr_t) oh; | |
1327 | iovector[0].iov_len = ntohs (oh->length); | |
1328 | iovector[1].iov_base = NULL; | |
1329 | iovector[1].iov_len = 0; | |
1330 | ||
1331 | /* fill OSPF header */ | |
1332 | oh->version = OSPFV3_VERSION; | |
1333 | /* message type must be set before */ | |
1334 | /* message length must be set before */ | |
1335 | oh->router_id = oi->area->ospf6->router_id; | |
1336 | oh->area_id = oi->area->area_id; | |
1337 | /* checksum is calculated by kernel */ | |
1338 | oh->instance_id = oi->instance_id; | |
1339 | oh->reserved = 0; | |
718e3744 | 1340 | |
508e53e2 | 1341 | /* Log */ |
1342 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, SEND)) | |
718e3744 | 1343 | { |
508e53e2 | 1344 | inet_ntop (AF_INET6, dst, dstname, sizeof (dstname)); |
1345 | if (src) | |
1346 | inet_ntop (AF_INET6, src, srcname, sizeof (srcname)); | |
718e3744 | 1347 | else |
508e53e2 | 1348 | memset (srcname, 0, sizeof (srcname)); |
c6487d61 | 1349 | zlog_debug ("%s send on %s", |
508e53e2 | 1350 | OSPF6_MESSAGE_TYPE_NAME (oh->type), oi->interface->name); |
c6487d61 | 1351 | zlog_debug (" src: %s", srcname); |
1352 | zlog_debug (" dst: %s", dstname); | |
508e53e2 | 1353 | |
1354 | switch (oh->type) | |
718e3744 | 1355 | { |
508e53e2 | 1356 | case OSPF6_MESSAGE_TYPE_HELLO: |
1357 | ospf6_hello_print (oh); | |
1358 | break; | |
1359 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1360 | ospf6_dbdesc_print (oh); | |
1361 | break; | |
1362 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1363 | ospf6_lsreq_print (oh); | |
1364 | break; | |
1365 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1366 | ospf6_lsupdate_print (oh); | |
1367 | break; | |
1368 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1369 | ospf6_lsack_print (oh); | |
1370 | break; | |
1371 | default: | |
c6487d61 | 1372 | zlog_debug ("Unknown message"); |
508e53e2 | 1373 | assert (0); |
1374 | break; | |
718e3744 | 1375 | } |
718e3744 | 1376 | } |
1377 | ||
508e53e2 | 1378 | /* send message */ |
1379 | len = ospf6_sendmsg (src, dst, &oi->interface->ifindex, iovector); | |
1380 | if (len != ntohs (oh->length)) | |
1381 | zlog_err ("Could not send entire message"); | |
718e3744 | 1382 | } |
1383 | ||
508e53e2 | 1384 | int |
1385 | ospf6_hello_send (struct thread *thread) | |
718e3744 | 1386 | { |
508e53e2 | 1387 | struct ospf6_interface *oi; |
1388 | struct ospf6_header *oh; | |
1389 | struct ospf6_hello *hello; | |
0c083ee9 | 1390 | u_char *p; |
1eb8ef25 | 1391 | struct listnode *node, *nnode; |
508e53e2 | 1392 | struct ospf6_neighbor *on; |
718e3744 | 1393 | |
508e53e2 | 1394 | oi = (struct ospf6_interface *) THREAD_ARG (thread); |
1395 | oi->thread_send_hello = (struct thread *) NULL; | |
718e3744 | 1396 | |
508e53e2 | 1397 | if (oi->state <= OSPF6_INTERFACE_DOWN) |
718e3744 | 1398 | { |
508e53e2 | 1399 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_HELLO, SEND)) |
c6487d61 | 1400 | zlog_debug ("Unable to send Hello on down interface %s", |
508e53e2 | 1401 | oi->interface->name); |
1402 | return 0; | |
718e3744 | 1403 | } |
1404 | ||
508e53e2 | 1405 | /* set next thread */ |
1406 | oi->thread_send_hello = thread_add_timer (master, ospf6_hello_send, | |
1407 | oi, oi->hello_interval); | |
718e3744 | 1408 | |
3b4cd3a9 | 1409 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1410 | oh = (struct ospf6_header *) sendbuf; |
1411 | hello = (struct ospf6_hello *)((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 1412 | |
508e53e2 | 1413 | hello->interface_id = htonl (oi->interface->ifindex); |
1414 | hello->priority = oi->priority; | |
1415 | hello->options[0] = oi->area->options[0]; | |
1416 | hello->options[1] = oi->area->options[1]; | |
1417 | hello->options[2] = oi->area->options[2]; | |
1418 | hello->hello_interval = htons (oi->hello_interval); | |
1419 | hello->dead_interval = htons (oi->dead_interval); | |
1420 | hello->drouter = oi->drouter; | |
1421 | hello->bdrouter = oi->bdrouter; | |
718e3744 | 1422 | |
508e53e2 | 1423 | p = (char *)((caddr_t) hello + sizeof (struct ospf6_hello)); |
718e3744 | 1424 | |
1eb8ef25 | 1425 | for (ALL_LIST_ELEMENTS (oi->neighbor_list, node, nnode, on)) |
718e3744 | 1426 | { |
508e53e2 | 1427 | if (on->state < OSPF6_NEIGHBOR_INIT) |
1428 | continue; | |
1429 | ||
1430 | if (p - sendbuf + sizeof (u_int32_t) > oi->ifmtu) | |
1431 | { | |
1432 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_HELLO, SEND)) | |
c6487d61 | 1433 | zlog_debug ("sending Hello message: exceeds I/F MTU"); |
508e53e2 | 1434 | break; |
1435 | } | |
718e3744 | 1436 | |
508e53e2 | 1437 | memcpy (p, &on->router_id, sizeof (u_int32_t)); |
1438 | p += sizeof (u_int32_t); | |
1439 | } | |
718e3744 | 1440 | |
508e53e2 | 1441 | oh->type = OSPF6_MESSAGE_TYPE_HELLO; |
1442 | oh->length = htons (p - sendbuf); | |
718e3744 | 1443 | |
508e53e2 | 1444 | ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh); |
1445 | return 0; | |
718e3744 | 1446 | } |
1447 | ||
1448 | int | |
508e53e2 | 1449 | ospf6_dbdesc_send (struct thread *thread) |
718e3744 | 1450 | { |
508e53e2 | 1451 | struct ospf6_neighbor *on; |
1452 | struct ospf6_header *oh; | |
1453 | struct ospf6_dbdesc *dbdesc; | |
0c083ee9 | 1454 | u_char *p; |
508e53e2 | 1455 | struct ospf6_lsa *lsa; |
718e3744 | 1456 | |
508e53e2 | 1457 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); |
1458 | on->thread_send_dbdesc = (struct thread *) NULL; | |
718e3744 | 1459 | |
508e53e2 | 1460 | if (on->state < OSPF6_NEIGHBOR_EXSTART) |
1461 | { | |
1462 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_DBDESC, SEND)) | |
c6487d61 | 1463 | zlog_debug ("Quit to send DbDesc to neighbor %s state %s", |
1464 | on->name, ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 1465 | return 0; |
1466 | } | |
718e3744 | 1467 | |
508e53e2 | 1468 | /* set next thread if master */ |
1469 | if (CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT)) | |
1470 | on->thread_send_dbdesc = | |
1471 | thread_add_timer (master, ospf6_dbdesc_send, on, | |
1472 | on->ospf6_if->rxmt_interval); | |
718e3744 | 1473 | |
3b4cd3a9 | 1474 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1475 | oh = (struct ospf6_header *) sendbuf; |
1476 | dbdesc = (struct ospf6_dbdesc *)((caddr_t) oh + | |
1477 | sizeof (struct ospf6_header)); | |
718e3744 | 1478 | |
508e53e2 | 1479 | /* if this is initial one, initialize sequence number for DbDesc */ |
1480 | if (CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT)) | |
1481 | { | |
1482 | struct timeval tv; | |
1483 | if (gettimeofday (&tv, (struct timezone *) NULL) < 0) | |
1484 | tv.tv_sec = 1; | |
1485 | on->dbdesc_seqnum = tv.tv_sec; | |
1486 | } | |
1487 | ||
1488 | dbdesc->options[0] = on->ospf6_if->area->options[0]; | |
1489 | dbdesc->options[1] = on->ospf6_if->area->options[1]; | |
1490 | dbdesc->options[2] = on->ospf6_if->area->options[2]; | |
1491 | dbdesc->ifmtu = htons (on->ospf6_if->ifmtu); | |
1492 | dbdesc->bits = on->dbdesc_bits; | |
1493 | dbdesc->seqnum = htonl (on->dbdesc_seqnum); | |
718e3744 | 1494 | |
508e53e2 | 1495 | /* if this is not initial one, set LSA headers in dbdesc */ |
1496 | p = (char *)((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc)); | |
1497 | if (! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT)) | |
718e3744 | 1498 | { |
508e53e2 | 1499 | for (lsa = ospf6_lsdb_head (on->dbdesc_list); lsa; |
1500 | lsa = ospf6_lsdb_next (lsa)) | |
1501 | { | |
1502 | ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay); | |
1503 | ||
1504 | /* MTU check */ | |
1505 | if (p - sendbuf + sizeof (struct ospf6_lsa_header) > | |
1506 | on->ospf6_if->ifmtu) | |
1507 | { | |
1508 | ospf6_lsa_unlock (lsa); | |
1509 | break; | |
1510 | } | |
1511 | memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header)); | |
1512 | p += sizeof (struct ospf6_lsa_header); | |
1513 | } | |
718e3744 | 1514 | } |
1515 | ||
508e53e2 | 1516 | oh->type = OSPF6_MESSAGE_TYPE_DBDESC; |
1517 | oh->length = htons (p - sendbuf); | |
718e3744 | 1518 | |
508e53e2 | 1519 | ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
1520 | on->ospf6_if, oh); | |
718e3744 | 1521 | return 0; |
1522 | } | |
1523 | ||
718e3744 | 1524 | int |
508e53e2 | 1525 | ospf6_dbdesc_send_newone (struct thread *thread) |
718e3744 | 1526 | { |
508e53e2 | 1527 | struct ospf6_neighbor *on; |
1528 | struct ospf6_lsa *lsa; | |
1529 | unsigned int size = 0; | |
1530 | ||
1531 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); | |
508e53e2 | 1532 | ospf6_lsdb_remove_all (on->dbdesc_list); |
1533 | ||
1534 | /* move LSAs from summary_list to dbdesc_list (within neighbor structure) | |
1535 | so that ospf6_send_dbdesc () can send those LSAs */ | |
1536 | size = sizeof (struct ospf6_lsa_header) + sizeof (struct ospf6_dbdesc); | |
1537 | for (lsa = ospf6_lsdb_head (on->summary_list); lsa; | |
1538 | lsa = ospf6_lsdb_next (lsa)) | |
718e3744 | 1539 | { |
508e53e2 | 1540 | if (size + sizeof (struct ospf6_lsa_header) > on->ospf6_if->ifmtu) |
718e3744 | 1541 | { |
508e53e2 | 1542 | ospf6_lsa_unlock (lsa); |
1543 | break; | |
718e3744 | 1544 | } |
508e53e2 | 1545 | |
508e53e2 | 1546 | ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->dbdesc_list); |
1547 | ospf6_lsdb_remove (lsa, on->summary_list); | |
1548 | size += sizeof (struct ospf6_lsa_header); | |
718e3744 | 1549 | } |
1550 | ||
508e53e2 | 1551 | if (on->summary_list->count == 0) |
1552 | UNSET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT); | |
718e3744 | 1553 | |
508e53e2 | 1554 | /* If slave, More bit check must be done here */ |
1555 | if (! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT) && /* Slave */ | |
1556 | ! CHECK_FLAG (on->dbdesc_last.bits, OSPF6_DBDESC_MBIT) && | |
1557 | ! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT)) | |
1558 | thread_add_event (master, exchange_done, on, 0); | |
718e3744 | 1559 | |
508e53e2 | 1560 | thread_execute (master, ospf6_dbdesc_send, on, 0); |
1561 | return 0; | |
1562 | } | |
718e3744 | 1563 | |
508e53e2 | 1564 | int |
1565 | ospf6_lsreq_send (struct thread *thread) | |
1566 | { | |
1567 | struct ospf6_neighbor *on; | |
1568 | struct ospf6_header *oh; | |
1569 | struct ospf6_lsreq_entry *e; | |
0c083ee9 | 1570 | u_char *p; |
508e53e2 | 1571 | struct ospf6_lsa *lsa; |
718e3744 | 1572 | |
508e53e2 | 1573 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); |
1574 | on->thread_send_lsreq = (struct thread *) NULL; | |
1575 | ||
1576 | /* LSReq will be sent only in ExStart or Loading */ | |
1577 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE && | |
1578 | on->state != OSPF6_NEIGHBOR_LOADING) | |
718e3744 | 1579 | { |
508e53e2 | 1580 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSREQ, SEND)) |
c6487d61 | 1581 | zlog_debug ("Quit to send LSReq to neighbor %s state %s", |
1582 | on->name, ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 1583 | return 0; |
718e3744 | 1584 | } |
1585 | ||
508e53e2 | 1586 | /* schedule loading_done if request list is empty */ |
1587 | if (on->request_list->count == 0) | |
1588 | { | |
1589 | thread_add_event (master, loading_done, on, 0); | |
718e3744 | 1590 | return 0; |
1591 | } | |
1592 | ||
508e53e2 | 1593 | /* set next thread */ |
1594 | on->thread_send_lsreq = | |
1595 | thread_add_timer (master, ospf6_lsreq_send, on, | |
1596 | on->ospf6_if->rxmt_interval); | |
718e3744 | 1597 | |
3b4cd3a9 | 1598 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1599 | oh = (struct ospf6_header *) sendbuf; |
718e3744 | 1600 | |
508e53e2 | 1601 | /* set Request entries in lsreq */ |
1602 | p = (char *)((caddr_t) oh + sizeof (struct ospf6_header)); | |
1603 | for (lsa = ospf6_lsdb_head (on->request_list); lsa; | |
1604 | lsa = ospf6_lsdb_next (lsa)) | |
718e3744 | 1605 | { |
508e53e2 | 1606 | /* MTU check */ |
1607 | if (p - sendbuf + sizeof (struct ospf6_lsreq_entry) > on->ospf6_if->ifmtu) | |
718e3744 | 1608 | { |
508e53e2 | 1609 | ospf6_lsa_unlock (lsa); |
718e3744 | 1610 | break; |
1611 | } | |
1612 | ||
508e53e2 | 1613 | e = (struct ospf6_lsreq_entry *) p; |
1614 | e->type = lsa->header->type; | |
1615 | e->id = lsa->header->id; | |
1616 | e->adv_router = lsa->header->adv_router; | |
1617 | p += sizeof (struct ospf6_lsreq_entry); | |
718e3744 | 1618 | } |
718e3744 | 1619 | |
508e53e2 | 1620 | oh->type = OSPF6_MESSAGE_TYPE_LSREQ; |
1621 | oh->length = htons (p - sendbuf); | |
718e3744 | 1622 | |
508e53e2 | 1623 | ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
1624 | on->ospf6_if, oh); | |
718e3744 | 1625 | return 0; |
1626 | } | |
1627 | ||
718e3744 | 1628 | int |
508e53e2 | 1629 | ospf6_lsupdate_send_neighbor (struct thread *thread) |
718e3744 | 1630 | { |
508e53e2 | 1631 | struct ospf6_neighbor *on; |
1632 | struct ospf6_header *oh; | |
1633 | struct ospf6_lsupdate *lsupdate; | |
0c083ee9 | 1634 | u_char *p; |
508e53e2 | 1635 | int num; |
718e3744 | 1636 | struct ospf6_lsa *lsa; |
718e3744 | 1637 | |
508e53e2 | 1638 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); |
1639 | on->thread_send_lsupdate = (struct thread *) NULL; | |
718e3744 | 1640 | |
6452df09 | 1641 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) |
c6487d61 | 1642 | zlog_debug ("LSUpdate to neighbor %s", on->name); |
6452df09 | 1643 | |
508e53e2 | 1644 | if (on->state < OSPF6_NEIGHBOR_EXCHANGE) |
1645 | { | |
1646 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) | |
c6487d61 | 1647 | zlog_debug ("Quit to send (neighbor state %s)", |
1648 | ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 1649 | return 0; |
1650 | } | |
718e3744 | 1651 | |
508e53e2 | 1652 | /* if we have nothing to send, return */ |
1653 | if (on->lsupdate_list->count == 0 && | |
1654 | on->retrans_list->count == 0) | |
6452df09 | 1655 | { |
1656 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) | |
c6487d61 | 1657 | zlog_debug ("Quit to send (nothing to send)"); |
6452df09 | 1658 | return 0; |
1659 | } | |
508e53e2 | 1660 | |
3b4cd3a9 | 1661 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1662 | oh = (struct ospf6_header *) sendbuf; |
1663 | lsupdate = (struct ospf6_lsupdate *) | |
1664 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 1665 | |
508e53e2 | 1666 | p = (char *)((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate)); |
1667 | num = 0; | |
718e3744 | 1668 | |
508e53e2 | 1669 | /* lsupdate_list lists those LSA which doesn't need to be |
1670 | retransmitted. remove those from the list */ | |
1671 | for (lsa = ospf6_lsdb_head (on->lsupdate_list); lsa; | |
1672 | lsa = ospf6_lsdb_next (lsa)) | |
718e3744 | 1673 | { |
508e53e2 | 1674 | /* MTU check */ |
0c083ee9 | 1675 | if ( (p - sendbuf + (unsigned int)OSPF6_LSA_SIZE (lsa->header)) |
1676 | > on->ospf6_if->ifmtu) | |
718e3744 | 1677 | { |
508e53e2 | 1678 | ospf6_lsa_unlock (lsa); |
1679 | break; | |
1680 | } | |
718e3744 | 1681 | |
508e53e2 | 1682 | ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay); |
1683 | memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header)); | |
1684 | p += OSPF6_LSA_SIZE (lsa->header); | |
1685 | num++; | |
718e3744 | 1686 | |
508e53e2 | 1687 | assert (lsa->lock == 2); |
1688 | ospf6_lsdb_remove (lsa, on->lsupdate_list); | |
1689 | } | |
1690 | ||
1691 | for (lsa = ospf6_lsdb_head (on->retrans_list); lsa; | |
1692 | lsa = ospf6_lsdb_next (lsa)) | |
1693 | { | |
1694 | /* MTU check */ | |
0c083ee9 | 1695 | if ( (p - sendbuf + (unsigned int)OSPF6_LSA_SIZE (lsa->header)) |
1696 | > on->ospf6_if->ifmtu) | |
508e53e2 | 1697 | { |
1698 | ospf6_lsa_unlock (lsa); | |
1699 | break; | |
718e3744 | 1700 | } |
508e53e2 | 1701 | |
508e53e2 | 1702 | ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay); |
1703 | memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header)); | |
1704 | p += OSPF6_LSA_SIZE (lsa->header); | |
1705 | num++; | |
718e3744 | 1706 | } |
1707 | ||
508e53e2 | 1708 | lsupdate->lsa_number = htonl (num); |
1709 | ||
1710 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
1711 | oh->length = htons (p - sendbuf); | |
718e3744 | 1712 | |
508e53e2 | 1713 | ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
1714 | on->ospf6_if, oh); | |
718e3744 | 1715 | |
508e53e2 | 1716 | if (on->lsupdate_list->count != 0 || |
1717 | on->retrans_list->count != 0) | |
1718 | { | |
1719 | if (on->lsupdate_list->count != 0) | |
1720 | on->thread_send_lsupdate = | |
1721 | thread_add_event (master, ospf6_lsupdate_send_neighbor, on, 0); | |
1722 | else | |
1723 | on->thread_send_lsupdate = | |
1724 | thread_add_timer (master, ospf6_lsupdate_send_neighbor, on, | |
1725 | on->ospf6_if->rxmt_interval); | |
1726 | } | |
718e3744 | 1727 | |
1728 | return 0; | |
1729 | } | |
1730 | ||
1731 | int | |
508e53e2 | 1732 | ospf6_lsupdate_send_interface (struct thread *thread) |
718e3744 | 1733 | { |
508e53e2 | 1734 | struct ospf6_interface *oi; |
1735 | struct ospf6_header *oh; | |
1736 | struct ospf6_lsupdate *lsupdate; | |
0c083ee9 | 1737 | u_char *p; |
508e53e2 | 1738 | int num; |
718e3744 | 1739 | struct ospf6_lsa *lsa; |
718e3744 | 1740 | |
508e53e2 | 1741 | oi = (struct ospf6_interface *) THREAD_ARG (thread); |
1742 | oi->thread_send_lsupdate = (struct thread *) NULL; | |
718e3744 | 1743 | |
508e53e2 | 1744 | if (oi->state <= OSPF6_INTERFACE_WAITING) |
718e3744 | 1745 | { |
508e53e2 | 1746 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) |
c6487d61 | 1747 | zlog_debug ("Quit to send LSUpdate to interface %s state %s", |
1748 | oi->interface->name, ospf6_interface_state_str[oi->state]); | |
508e53e2 | 1749 | return 0; |
1750 | } | |
718e3744 | 1751 | |
508e53e2 | 1752 | /* if we have nothing to send, return */ |
1753 | if (oi->lsupdate_list->count == 0) | |
1754 | return 0; | |
718e3744 | 1755 | |
3b4cd3a9 | 1756 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1757 | oh = (struct ospf6_header *) sendbuf; |
1758 | lsupdate = (struct ospf6_lsupdate *)((caddr_t) oh + | |
1759 | sizeof (struct ospf6_header)); | |
718e3744 | 1760 | |
508e53e2 | 1761 | p = (char *)((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate)); |
1762 | num = 0; | |
718e3744 | 1763 | |
508e53e2 | 1764 | for (lsa = ospf6_lsdb_head (oi->lsupdate_list); lsa; |
1765 | lsa = ospf6_lsdb_next (lsa)) | |
1766 | { | |
1767 | /* MTU check */ | |
0c083ee9 | 1768 | if ( (p - sendbuf + ((unsigned int)OSPF6_LSA_SIZE (lsa->header))) |
1769 | > oi->ifmtu) | |
718e3744 | 1770 | { |
508e53e2 | 1771 | ospf6_lsa_unlock (lsa); |
1772 | break; | |
718e3744 | 1773 | } |
718e3744 | 1774 | |
508e53e2 | 1775 | ospf6_lsa_age_update_to_send (lsa, oi->transdelay); |
1776 | memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header)); | |
1777 | p += OSPF6_LSA_SIZE (lsa->header); | |
1778 | num++; | |
718e3744 | 1779 | |
508e53e2 | 1780 | assert (lsa->lock == 2); |
1781 | ospf6_lsdb_remove (lsa, oi->lsupdate_list); | |
1782 | } | |
718e3744 | 1783 | |
508e53e2 | 1784 | lsupdate->lsa_number = htonl (num); |
718e3744 | 1785 | |
508e53e2 | 1786 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; |
1787 | oh->length = htons (p - sendbuf); | |
718e3744 | 1788 | |
508e53e2 | 1789 | if (oi->state == OSPF6_INTERFACE_DR || |
1790 | oi->state == OSPF6_INTERFACE_BDR) | |
1791 | ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh); | |
1792 | else | |
1793 | ospf6_send (oi->linklocal_addr, &alldrouters6, oi, oh); | |
718e3744 | 1794 | |
508e53e2 | 1795 | if (oi->lsupdate_list->count > 0) |
1796 | { | |
1797 | oi->thread_send_lsupdate = | |
1798 | thread_add_event (master, ospf6_lsupdate_send_interface, oi, 0); | |
1799 | } | |
718e3744 | 1800 | |
718e3744 | 1801 | return 0; |
1802 | } | |
1803 | ||
1804 | int | |
508e53e2 | 1805 | ospf6_lsack_send_neighbor (struct thread *thread) |
718e3744 | 1806 | { |
508e53e2 | 1807 | struct ospf6_neighbor *on; |
1808 | struct ospf6_header *oh; | |
0c083ee9 | 1809 | u_char *p; |
718e3744 | 1810 | struct ospf6_lsa *lsa; |
718e3744 | 1811 | |
508e53e2 | 1812 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); |
1813 | on->thread_send_lsack = (struct thread *) NULL; | |
718e3744 | 1814 | |
508e53e2 | 1815 | if (on->state < OSPF6_NEIGHBOR_EXCHANGE) |
718e3744 | 1816 | { |
508e53e2 | 1817 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSACK, SEND)) |
c6487d61 | 1818 | zlog_debug ("Quit to send LSAck to neighbor %s state %s", |
1819 | on->name, ospf6_neighbor_state_str[on->state]); | |
718e3744 | 1820 | return 0; |
1821 | } | |
1822 | ||
508e53e2 | 1823 | /* if we have nothing to send, return */ |
1824 | if (on->lsack_list->count == 0) | |
1825 | return 0; | |
718e3744 | 1826 | |
3b4cd3a9 | 1827 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1828 | oh = (struct ospf6_header *) sendbuf; |
718e3744 | 1829 | |
508e53e2 | 1830 | p = (char *)((caddr_t) oh + sizeof (struct ospf6_header)); |
718e3744 | 1831 | |
508e53e2 | 1832 | for (lsa = ospf6_lsdb_head (on->lsack_list); lsa; |
1833 | lsa = ospf6_lsdb_next (lsa)) | |
1834 | { | |
1835 | /* MTU check */ | |
1836 | if (p - sendbuf + sizeof (struct ospf6_lsa_header) > on->ospf6_if->ifmtu) | |
1837 | { | |
1838 | /* if we run out of packet size/space here, | |
1839 | better to try again soon. */ | |
1840 | THREAD_OFF (on->thread_send_lsack); | |
1841 | on->thread_send_lsack = | |
1842 | thread_add_event (master, ospf6_lsack_send_neighbor, on, 0); | |
718e3744 | 1843 | |
508e53e2 | 1844 | ospf6_lsa_unlock (lsa); |
1845 | break; | |
1846 | } | |
718e3744 | 1847 | |
508e53e2 | 1848 | ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay); |
1849 | memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header)); | |
1850 | p += sizeof (struct ospf6_lsa_header); | |
718e3744 | 1851 | |
508e53e2 | 1852 | assert (lsa->lock == 2); |
1853 | ospf6_lsdb_remove (lsa, on->lsack_list); | |
1854 | } | |
718e3744 | 1855 | |
508e53e2 | 1856 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; |
1857 | oh->length = htons (p - sendbuf); | |
718e3744 | 1858 | |
508e53e2 | 1859 | ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
1860 | on->ospf6_if, oh); | |
718e3744 | 1861 | return 0; |
1862 | } | |
1863 | ||
718e3744 | 1864 | int |
508e53e2 | 1865 | ospf6_lsack_send_interface (struct thread *thread) |
718e3744 | 1866 | { |
508e53e2 | 1867 | struct ospf6_interface *oi; |
1868 | struct ospf6_header *oh; | |
0c083ee9 | 1869 | u_char *p; |
718e3744 | 1870 | struct ospf6_lsa *lsa; |
718e3744 | 1871 | |
508e53e2 | 1872 | oi = (struct ospf6_interface *) THREAD_ARG (thread); |
1873 | oi->thread_send_lsack = (struct thread *) NULL; | |
718e3744 | 1874 | |
508e53e2 | 1875 | if (oi->state <= OSPF6_INTERFACE_WAITING) |
1876 | { | |
1877 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSACK, SEND)) | |
c6487d61 | 1878 | zlog_debug ("Quit to send LSAck to interface %s state %s", |
1879 | oi->interface->name, ospf6_interface_state_str[oi->state]); | |
508e53e2 | 1880 | return 0; |
1881 | } | |
718e3744 | 1882 | |
508e53e2 | 1883 | /* if we have nothing to send, return */ |
1884 | if (oi->lsack_list->count == 0) | |
1885 | return 0; | |
718e3744 | 1886 | |
3b4cd3a9 | 1887 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1888 | oh = (struct ospf6_header *) sendbuf; |
718e3744 | 1889 | |
508e53e2 | 1890 | p = (char *)((caddr_t) oh + sizeof (struct ospf6_header)); |
718e3744 | 1891 | |
508e53e2 | 1892 | for (lsa = ospf6_lsdb_head (oi->lsack_list); lsa; |
1893 | lsa = ospf6_lsdb_next (lsa)) | |
718e3744 | 1894 | { |
508e53e2 | 1895 | /* MTU check */ |
1896 | if (p - sendbuf + sizeof (struct ospf6_lsa_header) > oi->ifmtu) | |
1897 | { | |
1898 | /* if we run out of packet size/space here, | |
1899 | better to try again soon. */ | |
1900 | THREAD_OFF (oi->thread_send_lsack); | |
1901 | oi->thread_send_lsack = | |
1902 | thread_add_event (master, ospf6_lsack_send_interface, oi, 0); | |
718e3744 | 1903 | |
508e53e2 | 1904 | ospf6_lsa_unlock (lsa); |
1905 | break; | |
1906 | } | |
718e3744 | 1907 | |
508e53e2 | 1908 | ospf6_lsa_age_update_to_send (lsa, oi->transdelay); |
1909 | memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header)); | |
1910 | p += sizeof (struct ospf6_lsa_header); | |
718e3744 | 1911 | |
508e53e2 | 1912 | assert (lsa->lock == 2); |
1913 | ospf6_lsdb_remove (lsa, oi->lsack_list); | |
1914 | } | |
718e3744 | 1915 | |
508e53e2 | 1916 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; |
1917 | oh->length = htons (p - sendbuf); | |
718e3744 | 1918 | |
508e53e2 | 1919 | if (oi->state == OSPF6_INTERFACE_DR || |
1920 | oi->state == OSPF6_INTERFACE_BDR) | |
1921 | ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh); | |
1922 | else | |
1923 | ospf6_send (oi->linklocal_addr, &alldrouters6, oi, oh); | |
718e3744 | 1924 | |
508e53e2 | 1925 | if (oi->thread_send_lsack == NULL && oi->lsack_list->count > 0) |
1926 | { | |
1927 | oi->thread_send_lsack = | |
1928 | thread_add_event (master, ospf6_lsack_send_interface, oi, 0); | |
1929 | } | |
718e3744 | 1930 | |
718e3744 | 1931 | return 0; |
1932 | } | |
1933 | ||
508e53e2 | 1934 | \f |
1935 | /* Commands */ | |
1936 | DEFUN (debug_ospf6_message, | |
1937 | debug_ospf6_message_cmd, | |
1938 | "debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all)", | |
1939 | DEBUG_STR | |
1940 | OSPF6_STR | |
1941 | "Debug OSPFv3 message\n" | |
1942 | "Debug Unknown message\n" | |
1943 | "Debug Hello message\n" | |
1944 | "Debug Database Description message\n" | |
1945 | "Debug Link State Request message\n" | |
1946 | "Debug Link State Update message\n" | |
1947 | "Debug Link State Acknowledgement message\n" | |
1948 | "Debug All message\n" | |
1949 | ) | |
718e3744 | 1950 | { |
508e53e2 | 1951 | unsigned char level = 0; |
1952 | int type = 0; | |
1953 | int i; | |
718e3744 | 1954 | |
508e53e2 | 1955 | assert (argc > 0); |
718e3744 | 1956 | |
508e53e2 | 1957 | /* check type */ |
1958 | if (! strncmp (argv[0], "u", 1)) | |
1959 | type = OSPF6_MESSAGE_TYPE_UNKNOWN; | |
1960 | else if (! strncmp (argv[0], "h", 1)) | |
1961 | type = OSPF6_MESSAGE_TYPE_HELLO; | |
1962 | else if (! strncmp (argv[0], "d", 1)) | |
1963 | type = OSPF6_MESSAGE_TYPE_DBDESC; | |
1964 | else if (! strncmp (argv[0], "lsr", 3)) | |
1965 | type = OSPF6_MESSAGE_TYPE_LSREQ; | |
1966 | else if (! strncmp (argv[0], "lsu", 3)) | |
1967 | type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
1968 | else if (! strncmp (argv[0], "lsa", 3)) | |
1969 | type = OSPF6_MESSAGE_TYPE_LSACK; | |
1970 | else if (! strncmp (argv[0], "a", 1)) | |
1971 | type = OSPF6_MESSAGE_TYPE_ALL; | |
1972 | ||
1973 | if (argc == 1) | |
1974 | level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV; | |
1975 | else if (! strncmp (argv[1], "s", 1)) | |
1976 | level = OSPF6_DEBUG_MESSAGE_SEND; | |
1977 | else if (! strncmp (argv[1], "r", 1)) | |
1978 | level = OSPF6_DEBUG_MESSAGE_RECV; | |
1979 | ||
1980 | if (type == OSPF6_MESSAGE_TYPE_ALL) | |
1981 | { | |
1982 | for (i = 0; i < 6; i++) | |
1983 | OSPF6_DEBUG_MESSAGE_ON (i, level); | |
1984 | } | |
1985 | else | |
1986 | OSPF6_DEBUG_MESSAGE_ON (type, level); | |
718e3744 | 1987 | |
508e53e2 | 1988 | return CMD_SUCCESS; |
718e3744 | 1989 | } |
1990 | ||
508e53e2 | 1991 | ALIAS (debug_ospf6_message, |
1992 | debug_ospf6_message_sendrecv_cmd, | |
1993 | "debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all) (send|recv)", | |
1994 | DEBUG_STR | |
1995 | OSPF6_STR | |
1996 | "Debug OSPFv3 message\n" | |
1997 | "Debug Unknown message\n" | |
1998 | "Debug Hello message\n" | |
1999 | "Debug Database Description message\n" | |
2000 | "Debug Link State Request message\n" | |
2001 | "Debug Link State Update message\n" | |
2002 | "Debug Link State Acknowledgement message\n" | |
2003 | "Debug All message\n" | |
2004 | "Debug only sending message\n" | |
2005 | "Debug only receiving message\n" | |
2006 | ); | |
718e3744 | 2007 | |
508e53e2 | 2008 | \f |
2009 | DEFUN (no_debug_ospf6_message, | |
2010 | no_debug_ospf6_message_cmd, | |
2011 | "no debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all)", | |
2012 | NO_STR | |
2013 | DEBUG_STR | |
2014 | OSPF6_STR | |
2015 | "Debug OSPFv3 message\n" | |
2016 | "Debug Unknown message\n" | |
2017 | "Debug Hello message\n" | |
2018 | "Debug Database Description message\n" | |
2019 | "Debug Link State Request message\n" | |
2020 | "Debug Link State Update message\n" | |
2021 | "Debug Link State Acknowledgement message\n" | |
2022 | "Debug All message\n" | |
2023 | ) | |
2024 | { | |
2025 | unsigned char level = 0; | |
2026 | int type = 0; | |
2027 | int i; | |
718e3744 | 2028 | |
508e53e2 | 2029 | assert (argc > 0); |
718e3744 | 2030 | |
508e53e2 | 2031 | /* check type */ |
2032 | if (! strncmp (argv[0], "u", 1)) | |
2033 | type = OSPF6_MESSAGE_TYPE_UNKNOWN; | |
2034 | else if (! strncmp (argv[0], "h", 1)) | |
2035 | type = OSPF6_MESSAGE_TYPE_HELLO; | |
2036 | else if (! strncmp (argv[0], "d", 1)) | |
2037 | type = OSPF6_MESSAGE_TYPE_DBDESC; | |
2038 | else if (! strncmp (argv[0], "lsr", 3)) | |
2039 | type = OSPF6_MESSAGE_TYPE_LSREQ; | |
2040 | else if (! strncmp (argv[0], "lsu", 3)) | |
2041 | type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2042 | else if (! strncmp (argv[0], "lsa", 3)) | |
2043 | type = OSPF6_MESSAGE_TYPE_LSACK; | |
2044 | else if (! strncmp (argv[0], "a", 1)) | |
2045 | type = OSPF6_MESSAGE_TYPE_ALL; | |
2046 | ||
2047 | if (argc == 1) | |
2048 | level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV; | |
2049 | else if (! strncmp (argv[1], "s", 1)) | |
2050 | level = OSPF6_DEBUG_MESSAGE_SEND; | |
2051 | else if (! strncmp (argv[1], "r", 1)) | |
2052 | level = OSPF6_DEBUG_MESSAGE_RECV; | |
2053 | ||
2054 | if (type == OSPF6_MESSAGE_TYPE_ALL) | |
718e3744 | 2055 | { |
508e53e2 | 2056 | for (i = 0; i < 6; i++) |
2057 | OSPF6_DEBUG_MESSAGE_OFF (i, level); | |
718e3744 | 2058 | } |
2059 | else | |
508e53e2 | 2060 | OSPF6_DEBUG_MESSAGE_OFF (type, level); |
718e3744 | 2061 | |
508e53e2 | 2062 | return CMD_SUCCESS; |
718e3744 | 2063 | } |
2064 | ||
508e53e2 | 2065 | ALIAS (no_debug_ospf6_message, |
2066 | no_debug_ospf6_message_sendrecv_cmd, | |
049207c3 | 2067 | "no debug ospf6 message " |
2068 | "(unknown|hello|dbdesc|lsreq|lsupdate|lsack|all) (send|recv)", | |
508e53e2 | 2069 | NO_STR |
2070 | DEBUG_STR | |
2071 | OSPF6_STR | |
2072 | "Debug OSPFv3 message\n" | |
2073 | "Debug Unknown message\n" | |
2074 | "Debug Hello message\n" | |
2075 | "Debug Database Description message\n" | |
2076 | "Debug Link State Request message\n" | |
2077 | "Debug Link State Update message\n" | |
2078 | "Debug Link State Acknowledgement message\n" | |
2079 | "Debug All message\n" | |
2080 | "Debug only sending message\n" | |
2081 | "Debug only receiving message\n" | |
2082 | ); | |
2083 | ||
718e3744 | 2084 | int |
508e53e2 | 2085 | config_write_ospf6_debug_message (struct vty *vty) |
718e3744 | 2086 | { |
0c083ee9 | 2087 | const char *type_str[] = {"unknown", "hello", "dbdesc", |
508e53e2 | 2088 | "lsreq", "lsupdate", "lsack"}; |
2089 | unsigned char s = 0, r = 0; | |
2090 | int i; | |
718e3744 | 2091 | |
508e53e2 | 2092 | for (i = 0; i < 6; i++) |
2093 | { | |
2094 | if (IS_OSPF6_DEBUG_MESSAGE (i, SEND)) | |
2095 | s |= 1 << i; | |
2096 | if (IS_OSPF6_DEBUG_MESSAGE (i, RECV)) | |
2097 | r |= 1 << i; | |
2098 | } | |
718e3744 | 2099 | |
508e53e2 | 2100 | if (s == 0x3f && r == 0x3f) |
718e3744 | 2101 | { |
049207c3 | 2102 | vty_out (vty, "debug ospf6 message all%s", VNL); |
508e53e2 | 2103 | return 0; |
2104 | } | |
718e3744 | 2105 | |
508e53e2 | 2106 | if (s == 0x3f && r == 0) |
2107 | { | |
049207c3 | 2108 | vty_out (vty, "debug ospf6 message all send%s", VNL); |
508e53e2 | 2109 | return 0; |
2110 | } | |
2111 | else if (s == 0 && r == 0x3f) | |
2112 | { | |
049207c3 | 2113 | vty_out (vty, "debug ospf6 message all recv%s", VNL); |
508e53e2 | 2114 | return 0; |
718e3744 | 2115 | } |
2116 | ||
508e53e2 | 2117 | /* Unknown message is logged by default */ |
2118 | if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, SEND) && | |
2119 | ! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) | |
049207c3 | 2120 | vty_out (vty, "no debug ospf6 message unknown%s", VNL); |
508e53e2 | 2121 | else if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, SEND)) |
049207c3 | 2122 | vty_out (vty, "no debug ospf6 message unknown send%s", VNL); |
508e53e2 | 2123 | else if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) |
049207c3 | 2124 | vty_out (vty, "no debug ospf6 message unknown recv%s", VNL); |
718e3744 | 2125 | |
508e53e2 | 2126 | for (i = 1; i < 6; i++) |
718e3744 | 2127 | { |
508e53e2 | 2128 | if (IS_OSPF6_DEBUG_MESSAGE (i, SEND) && |
2129 | IS_OSPF6_DEBUG_MESSAGE (i, RECV)) | |
049207c3 | 2130 | vty_out (vty, "debug ospf6 message %s%s", type_str[i], VNL); |
508e53e2 | 2131 | else if (IS_OSPF6_DEBUG_MESSAGE (i, SEND)) |
2132 | vty_out (vty, "debug ospf6 message %s send%s", type_str[i], | |
049207c3 | 2133 | VNL); |
508e53e2 | 2134 | else if (IS_OSPF6_DEBUG_MESSAGE (i, RECV)) |
2135 | vty_out (vty, "debug ospf6 message %s recv%s", type_str[i], | |
049207c3 | 2136 | VNL); |
718e3744 | 2137 | } |
2138 | ||
718e3744 | 2139 | return 0; |
2140 | } | |
2141 | ||
508e53e2 | 2142 | void |
2143 | install_element_ospf6_debug_message () | |
2144 | { | |
2145 | install_element (ENABLE_NODE, &debug_ospf6_message_cmd); | |
2146 | install_element (ENABLE_NODE, &no_debug_ospf6_message_cmd); | |
2147 | install_element (ENABLE_NODE, &debug_ospf6_message_sendrecv_cmd); | |
2148 | install_element (ENABLE_NODE, &no_debug_ospf6_message_sendrecv_cmd); | |
2149 | install_element (CONFIG_NODE, &debug_ospf6_message_cmd); | |
2150 | install_element (CONFIG_NODE, &no_debug_ospf6_message_cmd); | |
2151 | install_element (CONFIG_NODE, &debug_ospf6_message_sendrecv_cmd); | |
2152 | install_element (CONFIG_NODE, &no_debug_ospf6_message_sendrecv_cmd); | |
2153 | } | |
2154 | ||
2155 |