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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; | |
718e3744 | 325 | } |
326 | ||
7b6ae028 | 327 | /* always override neighbor's source address and ifindex */ |
328 | on->ifindex = ntohl (hello->interface_id); | |
329 | memcpy (&on->linklocal_addr, src, sizeof (struct in6_addr)); | |
330 | ||
508e53e2 | 331 | /* TwoWay check */ |
332 | for (p = (char *) ((caddr_t) hello + sizeof (struct ospf6_hello)); | |
333 | p + sizeof (u_int32_t) <= OSPF6_MESSAGE_END (oh); | |
334 | p += sizeof (u_int32_t)) | |
718e3744 | 335 | { |
508e53e2 | 336 | u_int32_t *router_id = (u_int32_t *) p; |
337 | ||
338 | if (*router_id == oi->area->ospf6->router_id) | |
339 | twoway++; | |
718e3744 | 340 | } |
341 | ||
508e53e2 | 342 | if (p != OSPF6_MESSAGE_END (oh)) |
718e3744 | 343 | { |
508e53e2 | 344 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 345 | zlog_debug ("Trailing garbage ignored"); |
718e3744 | 346 | } |
347 | ||
508e53e2 | 348 | /* RouterPriority check */ |
349 | if (on->priority != hello->priority) | |
718e3744 | 350 | { |
508e53e2 | 351 | on->priority = hello->priority; |
352 | neighborchange++; | |
718e3744 | 353 | } |
354 | ||
508e53e2 | 355 | /* DR check */ |
356 | if (on->drouter != hello->drouter) | |
357 | { | |
358 | on->prev_drouter = on->drouter; | |
359 | on->drouter = hello->drouter; | |
360 | if (on->prev_drouter == on->router_id || on->drouter == on->router_id) | |
361 | neighborchange++; | |
362 | } | |
718e3744 | 363 | |
508e53e2 | 364 | /* BDR check */ |
365 | if (on->bdrouter != hello->bdrouter) | |
718e3744 | 366 | { |
508e53e2 | 367 | on->prev_bdrouter = on->bdrouter; |
368 | on->bdrouter = hello->bdrouter; | |
369 | if (on->prev_bdrouter == on->router_id || on->bdrouter == on->router_id) | |
370 | neighborchange++; | |
371 | } | |
718e3744 | 372 | |
508e53e2 | 373 | /* BackupSeen check */ |
374 | if (oi->state == OSPF6_INTERFACE_WAITING) | |
375 | { | |
376 | if (hello->bdrouter == on->router_id) | |
718e3744 | 377 | backupseen++; |
508e53e2 | 378 | else if (hello->drouter == on->router_id && hello->bdrouter == htonl (0)) |
718e3744 | 379 | backupseen++; |
380 | } | |
381 | ||
508e53e2 | 382 | /* Execute neighbor events */ |
383 | thread_execute (master, hello_received, on, 0); | |
384 | if (twoway) | |
385 | thread_execute (master, twoway_received, on, 0); | |
386 | else | |
387 | thread_execute (master, oneway_received, on, 0); | |
718e3744 | 388 | |
508e53e2 | 389 | /* Schedule interface events */ |
718e3744 | 390 | if (backupseen) |
508e53e2 | 391 | thread_add_event (master, backup_seen, oi, 0); |
392 | if (neighborchange) | |
393 | thread_add_event (master, neighbor_change, oi, 0); | |
718e3744 | 394 | } |
395 | ||
508e53e2 | 396 | static void |
397 | ospf6_dbdesc_recv_master (struct ospf6_header *oh, | |
398 | struct ospf6_neighbor *on) | |
718e3744 | 399 | { |
508e53e2 | 400 | struct ospf6_dbdesc *dbdesc; |
401 | char *p; | |
718e3744 | 402 | |
508e53e2 | 403 | dbdesc = (struct ospf6_dbdesc *) |
404 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
405 | ||
406 | if (on->state < OSPF6_NEIGHBOR_INIT) | |
718e3744 | 407 | { |
508e53e2 | 408 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 409 | zlog_debug ("Neighbor state less than Init, ignore"); |
508e53e2 | 410 | return; |
718e3744 | 411 | } |
718e3744 | 412 | |
508e53e2 | 413 | switch (on->state) |
414 | { | |
415 | case OSPF6_NEIGHBOR_TWOWAY: | |
416 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 417 | zlog_debug ("Neighbor state is 2-Way, ignore"); |
508e53e2 | 418 | return; |
718e3744 | 419 | |
508e53e2 | 420 | case OSPF6_NEIGHBOR_INIT: |
421 | thread_execute (master, twoway_received, on, 0); | |
422 | if (on->state != OSPF6_NEIGHBOR_EXSTART) | |
423 | { | |
424 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 425 | zlog_debug ("Neighbor state is not ExStart, ignore"); |
508e53e2 | 426 | return; |
427 | } | |
428 | /* else fall through to ExStart */ | |
429 | ||
430 | case OSPF6_NEIGHBOR_EXSTART: | |
431 | /* if neighbor obeys us as our slave, schedule negotiation_done | |
432 | and process LSA Headers. Otherwise, ignore this message */ | |
433 | if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT) && | |
434 | ! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT) && | |
435 | ntohl (dbdesc->seqnum) == on->dbdesc_seqnum) | |
436 | { | |
437 | /* execute NegotiationDone */ | |
438 | thread_execute (master, negotiation_done, on, 0); | |
718e3744 | 439 | |
508e53e2 | 440 | /* Record neighbor options */ |
441 | memcpy (on->options, dbdesc->options, sizeof (on->options)); | |
442 | } | |
443 | else | |
444 | { | |
445 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 446 | zlog_debug ("Negotiation failed"); |
508e53e2 | 447 | return; |
448 | } | |
449 | /* fall through to exchange */ | |
718e3744 | 450 | |
508e53e2 | 451 | case OSPF6_NEIGHBOR_EXCHANGE: |
452 | if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc))) | |
453 | { | |
454 | /* Duplicated DatabaseDescription is dropped by master */ | |
455 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 456 | zlog_debug ("Duplicated dbdesc discarded by Master, ignore"); |
508e53e2 | 457 | return; |
458 | } | |
718e3744 | 459 | |
508e53e2 | 460 | if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT)) |
461 | { | |
462 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 463 | zlog_debug ("Master/Slave bit mismatch"); |
508e53e2 | 464 | thread_add_event (master, seqnumber_mismatch, on, 0); |
465 | return; | |
466 | } | |
467 | ||
468 | if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT)) | |
469 | { | |
470 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 471 | zlog_debug ("Initialize bit mismatch"); |
508e53e2 | 472 | thread_add_event (master, seqnumber_mismatch, on, 0); |
473 | return; | |
474 | } | |
475 | ||
476 | if (memcmp (on->options, dbdesc->options, sizeof (on->options))) | |
477 | { | |
478 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 479 | zlog_debug ("Option field mismatch"); |
508e53e2 | 480 | thread_add_event (master, seqnumber_mismatch, on, 0); |
481 | return; | |
482 | } | |
483 | ||
484 | if (ntohl (dbdesc->seqnum) != on->dbdesc_seqnum) | |
485 | { | |
486 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 487 | zlog_debug ("Sequence number mismatch (%#lx expected)", |
508e53e2 | 488 | (u_long) on->dbdesc_seqnum); |
489 | thread_add_event (master, seqnumber_mismatch, on, 0); | |
490 | return; | |
491 | } | |
492 | break; | |
493 | ||
494 | case OSPF6_NEIGHBOR_LOADING: | |
495 | case OSPF6_NEIGHBOR_FULL: | |
496 | if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc))) | |
497 | { | |
498 | /* Duplicated DatabaseDescription is dropped by master */ | |
499 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 500 | zlog_debug ("Duplicated dbdesc discarded by Master, ignore"); |
508e53e2 | 501 | return; |
502 | } | |
503 | ||
504 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 505 | zlog_debug ("Not duplicate dbdesc in state %s", |
506 | ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 507 | thread_add_event (master, seqnumber_mismatch, on, 0); |
508 | return; | |
509 | ||
510 | default: | |
511 | assert (0); | |
512 | break; | |
718e3744 | 513 | } |
514 | ||
508e53e2 | 515 | /* Process LSA headers */ |
516 | for (p = (char *) ((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc)); | |
517 | p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh); | |
518 | p += sizeof (struct ospf6_lsa_header)) | |
718e3744 | 519 | { |
508e53e2 | 520 | struct ospf6_lsa *his, *mine; |
521 | struct ospf6_lsdb *lsdb = NULL; | |
522 | ||
523 | his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p); | |
6452df09 | 524 | |
525 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 526 | zlog_debug ("%s", his->name); |
6452df09 | 527 | |
528 | switch (OSPF6_LSA_SCOPE (his->header->type)) | |
508e53e2 | 529 | { |
6452df09 | 530 | case OSPF6_SCOPE_LINKLOCAL: |
531 | lsdb = on->ospf6_if->lsdb; | |
532 | break; | |
533 | case OSPF6_SCOPE_AREA: | |
534 | lsdb = on->ospf6_if->area->lsdb; | |
535 | break; | |
536 | case OSPF6_SCOPE_AS: | |
537 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
538 | break; | |
539 | case OSPF6_SCOPE_RESERVED: | |
540 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 541 | zlog_debug ("Ignoring LSA of reserved scope"); |
508e53e2 | 542 | ospf6_lsa_delete (his); |
6452df09 | 543 | continue; |
544 | break; | |
508e53e2 | 545 | } |
546 | ||
547 | if (ntohs (his->header->type) == OSPF6_LSTYPE_AS_EXTERNAL && | |
6452df09 | 548 | IS_AREA_STUB (on->ospf6_if->area)) |
718e3744 | 549 | { |
508e53e2 | 550 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 551 | zlog_debug ("SeqNumMismatch (E-bit mismatch), discard"); |
508e53e2 | 552 | ospf6_lsa_delete (his); |
553 | thread_add_event (master, seqnumber_mismatch, on, 0); | |
718e3744 | 554 | return; |
555 | } | |
508e53e2 | 556 | |
557 | mine = ospf6_lsdb_lookup (his->header->type, his->header->id, | |
558 | his->header->adv_router, lsdb); | |
6452df09 | 559 | if (mine == NULL) |
508e53e2 | 560 | { |
6452df09 | 561 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 562 | zlog_debug ("Add request (No database copy)"); |
6452df09 | 563 | ospf6_lsdb_add (his, on->request_list); |
564 | } | |
565 | else if (ospf6_lsa_compare (his, mine) < 0) | |
566 | { | |
567 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 568 | zlog_debug ("Add request (Received MoreRecent)"); |
508e53e2 | 569 | ospf6_lsdb_add (his, on->request_list); |
570 | } | |
571 | else | |
6452df09 | 572 | { |
573 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 574 | zlog_debug ("Discard (Existing MoreRecent)"); |
6452df09 | 575 | ospf6_lsa_delete (his); |
576 | } | |
718e3744 | 577 | } |
578 | ||
508e53e2 | 579 | if (p != OSPF6_MESSAGE_END (oh)) |
580 | { | |
581 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 582 | zlog_debug ("Trailing garbage ignored"); |
508e53e2 | 583 | } |
718e3744 | 584 | |
508e53e2 | 585 | /* Increment sequence number */ |
586 | on->dbdesc_seqnum ++; | |
718e3744 | 587 | |
508e53e2 | 588 | /* schedule send lsreq */ |
589 | if (on->thread_send_lsreq == NULL) | |
590 | on->thread_send_lsreq = | |
591 | thread_add_event (master, ospf6_lsreq_send, on, 0); | |
718e3744 | 592 | |
508e53e2 | 593 | THREAD_OFF (on->thread_send_dbdesc); |
718e3744 | 594 | |
508e53e2 | 595 | /* More bit check */ |
596 | if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MBIT) && | |
597 | ! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT)) | |
598 | thread_add_event (master, exchange_done, on, 0); | |
599 | else | |
600 | on->thread_send_dbdesc = | |
601 | thread_add_event (master, ospf6_dbdesc_send_newone, on, 0); | |
718e3744 | 602 | |
508e53e2 | 603 | /* save last received dbdesc */ |
604 | memcpy (&on->dbdesc_last, dbdesc, sizeof (struct ospf6_dbdesc)); | |
718e3744 | 605 | } |
606 | ||
508e53e2 | 607 | static void |
608 | ospf6_dbdesc_recv_slave (struct ospf6_header *oh, | |
609 | struct ospf6_neighbor *on) | |
718e3744 | 610 | { |
718e3744 | 611 | struct ospf6_dbdesc *dbdesc; |
508e53e2 | 612 | char *p; |
718e3744 | 613 | |
508e53e2 | 614 | dbdesc = (struct ospf6_dbdesc *) |
615 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
616 | ||
617 | if (on->state < OSPF6_NEIGHBOR_INIT) | |
618 | { | |
619 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 620 | zlog_debug ("Neighbor state less than Init, ignore"); |
508e53e2 | 621 | return; |
622 | } | |
718e3744 | 623 | |
508e53e2 | 624 | switch (on->state) |
625 | { | |
626 | case OSPF6_NEIGHBOR_TWOWAY: | |
627 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 628 | zlog_debug ("Neighbor state is 2-Way, ignore"); |
508e53e2 | 629 | return; |
718e3744 | 630 | |
508e53e2 | 631 | case OSPF6_NEIGHBOR_INIT: |
632 | thread_execute (master, twoway_received, on, 0); | |
633 | if (on->state != OSPF6_NEIGHBOR_EXSTART) | |
634 | { | |
635 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 636 | zlog_debug ("Neighbor state is not ExStart, ignore"); |
508e53e2 | 637 | return; |
638 | } | |
639 | /* else fall through to ExStart */ | |
640 | ||
641 | case OSPF6_NEIGHBOR_EXSTART: | |
642 | /* If the neighbor is Master, act as Slave. Schedule negotiation_done | |
643 | and process LSA Headers. Otherwise, ignore this message */ | |
644 | if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT) && | |
645 | CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MBIT) && | |
646 | CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT) && | |
647 | ntohs (oh->length) == sizeof (struct ospf6_header) + | |
648 | sizeof (struct ospf6_dbdesc)) | |
649 | { | |
650 | /* set the master/slave bit to slave */ | |
651 | UNSET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT); | |
652 | ||
653 | /* set the DD sequence number to one specified by master */ | |
654 | on->dbdesc_seqnum = ntohl (dbdesc->seqnum); | |
655 | ||
656 | /* schedule NegotiationDone */ | |
657 | thread_execute (master, negotiation_done, on, 0); | |
658 | ||
659 | /* Record neighbor options */ | |
660 | memcpy (on->options, dbdesc->options, sizeof (on->options)); | |
661 | } | |
662 | else | |
663 | { | |
664 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 665 | zlog_debug ("Negotiation failed"); |
508e53e2 | 666 | return; |
667 | } | |
668 | break; | |
669 | ||
670 | case OSPF6_NEIGHBOR_EXCHANGE: | |
671 | if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc))) | |
672 | { | |
673 | /* Duplicated DatabaseDescription causes slave to retransmit */ | |
674 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 675 | zlog_debug ("Duplicated dbdesc causes retransmit"); |
508e53e2 | 676 | THREAD_OFF (on->thread_send_dbdesc); |
677 | on->thread_send_dbdesc = | |
678 | thread_add_event (master, ospf6_dbdesc_send, on, 0); | |
679 | return; | |
680 | } | |
681 | ||
682 | if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT)) | |
683 | { | |
684 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 685 | zlog_debug ("Master/Slave bit mismatch"); |
508e53e2 | 686 | thread_add_event (master, seqnumber_mismatch, on, 0); |
687 | return; | |
688 | } | |
689 | ||
690 | if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT)) | |
691 | { | |
692 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 693 | zlog_debug ("Initialize bit mismatch"); |
508e53e2 | 694 | thread_add_event (master, seqnumber_mismatch, on, 0); |
695 | return; | |
696 | } | |
697 | ||
698 | if (memcmp (on->options, dbdesc->options, sizeof (on->options))) | |
699 | { | |
700 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 701 | zlog_debug ("Option field mismatch"); |
508e53e2 | 702 | thread_add_event (master, seqnumber_mismatch, on, 0); |
703 | return; | |
704 | } | |
705 | ||
706 | if (ntohl (dbdesc->seqnum) != on->dbdesc_seqnum + 1) | |
707 | { | |
708 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 709 | zlog_debug ("Sequence number mismatch (%#lx expected)", |
710 | (u_long) on->dbdesc_seqnum + 1); | |
508e53e2 | 711 | thread_add_event (master, seqnumber_mismatch, on, 0); |
712 | return; | |
713 | } | |
714 | break; | |
715 | ||
716 | case OSPF6_NEIGHBOR_LOADING: | |
717 | case OSPF6_NEIGHBOR_FULL: | |
718 | if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc))) | |
719 | { | |
720 | /* Duplicated DatabaseDescription causes slave to retransmit */ | |
721 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 722 | zlog_debug ("Duplicated dbdesc causes retransmit"); |
508e53e2 | 723 | THREAD_OFF (on->thread_send_dbdesc); |
724 | on->thread_send_dbdesc = | |
725 | thread_add_event (master, ospf6_dbdesc_send, on, 0); | |
726 | return; | |
727 | } | |
728 | ||
729 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 730 | zlog_debug ("Not duplicate dbdesc in state %s", |
731 | ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 732 | thread_add_event (master, seqnumber_mismatch, on, 0); |
733 | return; | |
734 | ||
735 | default: | |
736 | assert (0); | |
737 | break; | |
718e3744 | 738 | } |
739 | ||
508e53e2 | 740 | /* Process LSA headers */ |
741 | for (p = (char *) ((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc)); | |
742 | p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh); | |
743 | p += sizeof (struct ospf6_lsa_header)) | |
718e3744 | 744 | { |
508e53e2 | 745 | struct ospf6_lsa *his, *mine; |
746 | struct ospf6_lsdb *lsdb = NULL; | |
747 | ||
748 | his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p); | |
6452df09 | 749 | |
750 | switch (OSPF6_LSA_SCOPE (his->header->type)) | |
508e53e2 | 751 | { |
6452df09 | 752 | case OSPF6_SCOPE_LINKLOCAL: |
753 | lsdb = on->ospf6_if->lsdb; | |
754 | break; | |
755 | case OSPF6_SCOPE_AREA: | |
756 | lsdb = on->ospf6_if->area->lsdb; | |
757 | break; | |
758 | case OSPF6_SCOPE_AS: | |
759 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
760 | break; | |
761 | case OSPF6_SCOPE_RESERVED: | |
762 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 763 | zlog_debug ("Ignoring LSA of reserved scope"); |
508e53e2 | 764 | ospf6_lsa_delete (his); |
6452df09 | 765 | continue; |
766 | break; | |
508e53e2 | 767 | } |
768 | ||
6452df09 | 769 | if (OSPF6_LSA_SCOPE (his->header->type) == OSPF6_SCOPE_AS && |
770 | IS_AREA_STUB (on->ospf6_if->area)) | |
718e3744 | 771 | { |
508e53e2 | 772 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 773 | zlog_debug ("E-bit mismatch with LSA Headers"); |
508e53e2 | 774 | ospf6_lsa_delete (his); |
775 | thread_add_event (master, seqnumber_mismatch, on, 0); | |
718e3744 | 776 | return; |
777 | } | |
508e53e2 | 778 | |
779 | mine = ospf6_lsdb_lookup (his->header->type, his->header->id, | |
780 | his->header->adv_router, lsdb); | |
781 | if (mine == NULL || ospf6_lsa_compare (his, mine) < 0) | |
782 | { | |
6452df09 | 783 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 784 | zlog_debug ("Add request-list: %s", his->name); |
508e53e2 | 785 | ospf6_lsdb_add (his, on->request_list); |
786 | } | |
787 | else | |
788 | ospf6_lsa_delete (his); | |
718e3744 | 789 | } |
790 | ||
508e53e2 | 791 | if (p != OSPF6_MESSAGE_END (oh)) |
792 | { | |
793 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 794 | zlog_debug ("Trailing garbage ignored"); |
508e53e2 | 795 | } |
718e3744 | 796 | |
508e53e2 | 797 | /* Set sequence number to Master's */ |
798 | on->dbdesc_seqnum = ntohl (dbdesc->seqnum); | |
718e3744 | 799 | |
508e53e2 | 800 | /* schedule send lsreq */ |
801 | if (on->thread_send_lsreq == NULL) | |
802 | on->thread_send_lsreq = | |
803 | thread_add_event (master, ospf6_lsreq_send, on, 0); | |
718e3744 | 804 | |
508e53e2 | 805 | THREAD_OFF (on->thread_send_dbdesc); |
806 | on->thread_send_dbdesc = | |
807 | thread_add_event (master, ospf6_dbdesc_send_newone, on, 0); | |
718e3744 | 808 | |
508e53e2 | 809 | /* save last received dbdesc */ |
810 | memcpy (&on->dbdesc_last, dbdesc, sizeof (struct ospf6_dbdesc)); | |
718e3744 | 811 | } |
812 | ||
813 | void | |
508e53e2 | 814 | ospf6_dbdesc_recv (struct in6_addr *src, struct in6_addr *dst, |
815 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 816 | { |
508e53e2 | 817 | struct ospf6_neighbor *on; |
718e3744 | 818 | struct ospf6_dbdesc *dbdesc; |
718e3744 | 819 | |
508e53e2 | 820 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) |
821 | return; | |
718e3744 | 822 | |
508e53e2 | 823 | on = ospf6_neighbor_lookup (oh->router_id, oi); |
824 | if (on == NULL) | |
718e3744 | 825 | { |
508e53e2 | 826 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 827 | zlog_debug ("Neighbor not found, ignore"); |
718e3744 | 828 | return; |
829 | } | |
830 | ||
508e53e2 | 831 | dbdesc = (struct ospf6_dbdesc *) |
832 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 833 | |
508e53e2 | 834 | /* Interface MTU check */ |
835 | if (ntohs (dbdesc->ifmtu) != oi->ifmtu) | |
718e3744 | 836 | { |
508e53e2 | 837 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 838 | zlog_debug ("I/F MTU mismatch"); |
508e53e2 | 839 | return; |
718e3744 | 840 | } |
841 | ||
508e53e2 | 842 | if (dbdesc->reserved1 || dbdesc->reserved2) |
843 | { | |
844 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 845 | zlog_debug ("Non-0 reserved field in %s's DbDesc, correct", |
846 | on->name); | |
508e53e2 | 847 | dbdesc->reserved1 = 0; |
848 | dbdesc->reserved2 = 0; | |
849 | } | |
718e3744 | 850 | |
508e53e2 | 851 | if (ntohl (oh->router_id) < ntohl (ospf6->router_id)) |
852 | ospf6_dbdesc_recv_master (oh, on); | |
853 | else if (ntohl (ospf6->router_id) < ntohl (oh->router_id)) | |
854 | ospf6_dbdesc_recv_slave (oh, on); | |
855 | else | |
856 | { | |
857 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 858 | zlog_debug ("Can't decide which is master, ignore"); |
508e53e2 | 859 | } |
718e3744 | 860 | } |
861 | ||
862 | void | |
508e53e2 | 863 | ospf6_lsreq_recv (struct in6_addr *src, struct in6_addr *dst, |
864 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 865 | { |
508e53e2 | 866 | struct ospf6_neighbor *on; |
867 | char *p; | |
868 | struct ospf6_lsreq_entry *e; | |
508e53e2 | 869 | struct ospf6_lsdb *lsdb = NULL; |
718e3744 | 870 | struct ospf6_lsa *lsa; |
718e3744 | 871 | |
508e53e2 | 872 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) |
873 | return; | |
718e3744 | 874 | |
508e53e2 | 875 | on = ospf6_neighbor_lookup (oh->router_id, oi); |
876 | if (on == NULL) | |
718e3744 | 877 | { |
508e53e2 | 878 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 879 | zlog_debug ("Neighbor not found, ignore"); |
718e3744 | 880 | return; |
881 | } | |
882 | ||
508e53e2 | 883 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE && |
884 | on->state != OSPF6_NEIGHBOR_LOADING && | |
885 | on->state != OSPF6_NEIGHBOR_FULL) | |
718e3744 | 886 | { |
508e53e2 | 887 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 888 | zlog_debug ("Neighbor state less than Exchange, ignore"); |
718e3744 | 889 | return; |
890 | } | |
891 | ||
508e53e2 | 892 | /* Process each request */ |
893 | for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header)); | |
894 | p + sizeof (struct ospf6_lsreq_entry) <= OSPF6_MESSAGE_END (oh); | |
895 | p += sizeof (struct ospf6_lsreq_entry)) | |
718e3744 | 896 | { |
508e53e2 | 897 | e = (struct ospf6_lsreq_entry *) p; |
6452df09 | 898 | |
899 | switch (OSPF6_LSA_SCOPE (e->type)) | |
900 | { | |
901 | case OSPF6_SCOPE_LINKLOCAL: | |
902 | lsdb = on->ospf6_if->lsdb; | |
903 | break; | |
904 | case OSPF6_SCOPE_AREA: | |
905 | lsdb = on->ospf6_if->area->lsdb; | |
906 | break; | |
907 | case OSPF6_SCOPE_AS: | |
908 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
909 | break; | |
910 | default: | |
911 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 912 | zlog_debug ("Ignoring LSA of reserved scope"); |
6452df09 | 913 | continue; |
914 | break; | |
915 | } | |
718e3744 | 916 | |
508e53e2 | 917 | /* Find database copy */ |
918 | lsa = ospf6_lsdb_lookup (e->type, e->id, e->adv_router, lsdb); | |
919 | if (lsa == NULL) | |
718e3744 | 920 | { |
508e53e2 | 921 | char id[16], adv_router[16]; |
922 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
923 | { | |
924 | inet_ntop (AF_INET, &e->id, id, sizeof (id)); | |
925 | inet_ntop (AF_INET, &e->adv_router, adv_router, | |
926 | sizeof (adv_router)); | |
c6487d61 | 927 | zlog_debug ("Can't find requested [%s Id:%s Adv:%s]", |
928 | ospf6_lstype_name (e->type), id, adv_router); | |
508e53e2 | 929 | } |
930 | thread_add_event (master, bad_lsreq, on, 0); | |
718e3744 | 931 | return; |
932 | } | |
933 | ||
508e53e2 | 934 | ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->lsupdate_list); |
718e3744 | 935 | } |
936 | ||
508e53e2 | 937 | if (p != OSPF6_MESSAGE_END (oh)) |
718e3744 | 938 | { |
508e53e2 | 939 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 940 | zlog_debug ("Trailing garbage ignored"); |
718e3744 | 941 | } |
942 | ||
508e53e2 | 943 | /* schedule send lsupdate */ |
944 | THREAD_OFF (on->thread_send_lsupdate); | |
945 | on->thread_send_lsupdate = | |
946 | thread_add_event (master, ospf6_lsupdate_send_neighbor, on, 0); | |
718e3744 | 947 | } |
948 | ||
949 | void | |
508e53e2 | 950 | ospf6_lsupdate_recv (struct in6_addr *src, struct in6_addr *dst, |
951 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 952 | { |
508e53e2 | 953 | struct ospf6_neighbor *on; |
718e3744 | 954 | struct ospf6_lsupdate *lsupdate; |
508e53e2 | 955 | unsigned long num; |
956 | char *p; | |
718e3744 | 957 | |
508e53e2 | 958 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) |
959 | return; | |
718e3744 | 960 | |
508e53e2 | 961 | on = ospf6_neighbor_lookup (oh->router_id, oi); |
962 | if (on == NULL) | |
718e3744 | 963 | { |
508e53e2 | 964 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 965 | zlog_debug ("Neighbor not found, ignore"); |
718e3744 | 966 | return; |
967 | } | |
968 | ||
508e53e2 | 969 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE && |
970 | on->state != OSPF6_NEIGHBOR_LOADING && | |
971 | on->state != OSPF6_NEIGHBOR_FULL) | |
718e3744 | 972 | { |
508e53e2 | 973 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 974 | zlog_debug ("Neighbor state less than Exchange, ignore"); |
718e3744 | 975 | return; |
976 | } | |
977 | ||
508e53e2 | 978 | lsupdate = (struct ospf6_lsupdate *) |
979 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 980 | |
508e53e2 | 981 | num = ntohl (lsupdate->lsa_number); |
718e3744 | 982 | |
508e53e2 | 983 | /* Process LSAs */ |
984 | for (p = (char *) ((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate)); | |
985 | p < OSPF6_MESSAGE_END (oh) && | |
986 | p + OSPF6_LSA_SIZE (p) <= OSPF6_MESSAGE_END (oh); | |
987 | p += OSPF6_LSA_SIZE (p)) | |
988 | { | |
989 | if (num == 0) | |
990 | break; | |
991 | if (OSPF6_LSA_SIZE (p) < sizeof (struct ospf6_lsa_header)) | |
992 | { | |
993 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 994 | zlog_debug ("Malformed LSA length, quit processing"); |
508e53e2 | 995 | break; |
996 | } | |
997 | ||
6452df09 | 998 | ospf6_receive_lsa (on, (struct ospf6_lsa_header *) p); |
508e53e2 | 999 | num--; |
1000 | } | |
1001 | ||
1002 | if (num != 0) | |
1003 | { | |
1004 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1005 | zlog_debug ("Malformed LSA number or LSA length"); |
508e53e2 | 1006 | } |
1007 | if (p != OSPF6_MESSAGE_END (oh)) | |
1008 | { | |
1009 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1010 | zlog_debug ("Trailing garbage ignored"); |
508e53e2 | 1011 | } |
718e3744 | 1012 | |
1013 | /* RFC2328 Section 10.9: When the neighbor responds to these requests | |
1014 | with the proper Link State Update packet(s), the Link state request | |
1015 | list is truncated and a new Link State Request packet is sent. */ | |
508e53e2 | 1016 | /* send new Link State Request packet if this LS Update packet |
1017 | can be recognized as a response to our previous LS Request */ | |
1018 | if (! IN6_IS_ADDR_MULTICAST (dst) && | |
1019 | (on->state == OSPF6_NEIGHBOR_EXCHANGE || | |
1020 | on->state == OSPF6_NEIGHBOR_LOADING)) | |
1021 | { | |
1022 | THREAD_OFF (on->thread_send_lsreq); | |
1023 | on->thread_send_lsreq = | |
1024 | thread_add_event (master, ospf6_lsreq_send, on, 0); | |
1025 | } | |
1026 | } | |
1027 | ||
1028 | void | |
1029 | ospf6_lsack_recv (struct in6_addr *src, struct in6_addr *dst, | |
1030 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
1031 | { | |
1032 | struct ospf6_neighbor *on; | |
1033 | char *p; | |
1034 | struct ospf6_lsa *his, *mine; | |
1035 | struct ospf6_lsdb *lsdb = NULL; | |
1036 | ||
1037 | assert (oh->type == OSPF6_MESSAGE_TYPE_LSACK); | |
1038 | if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK) | |
1039 | return; | |
1040 | ||
1041 | on = ospf6_neighbor_lookup (oh->router_id, oi); | |
1042 | if (on == NULL) | |
1043 | { | |
1044 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1045 | zlog_debug ("Neighbor not found, ignore"); |
508e53e2 | 1046 | return; |
1047 | } | |
1048 | ||
508e53e2 | 1049 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE && |
1050 | on->state != OSPF6_NEIGHBOR_LOADING && | |
1051 | on->state != OSPF6_NEIGHBOR_FULL) | |
718e3744 | 1052 | { |
508e53e2 | 1053 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 1054 | zlog_debug ("Neighbor state less than Exchange, ignore"); |
508e53e2 | 1055 | return; |
718e3744 | 1056 | } |
1057 | ||
508e53e2 | 1058 | for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header)); |
1059 | p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh); | |
1060 | p += sizeof (struct ospf6_lsa_header)) | |
1061 | { | |
1062 | his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p); | |
508e53e2 | 1063 | |
6452df09 | 1064 | switch (OSPF6_LSA_SCOPE (his->header->type)) |
1065 | { | |
1066 | case OSPF6_SCOPE_LINKLOCAL: | |
1067 | lsdb = on->ospf6_if->lsdb; | |
1068 | break; | |
1069 | case OSPF6_SCOPE_AREA: | |
1070 | lsdb = on->ospf6_if->area->lsdb; | |
1071 | break; | |
1072 | case OSPF6_SCOPE_AS: | |
1073 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
1074 | break; | |
1075 | case OSPF6_SCOPE_RESERVED: | |
1076 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1077 | zlog_debug ("Ignoring LSA of reserved scope"); |
6452df09 | 1078 | ospf6_lsa_delete (his); |
1079 | continue; | |
1080 | break; | |
1081 | } | |
1082 | ||
1083 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1084 | zlog_debug ("%s acknowledged by %s", his->name, on->name); |
508e53e2 | 1085 | |
1086 | /* Find database copy */ | |
1087 | mine = ospf6_lsdb_lookup (his->header->type, his->header->id, | |
1088 | his->header->adv_router, lsdb); | |
1089 | if (mine == NULL) | |
1090 | { | |
1091 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1092 | zlog_debug ("No database copy"); |
508e53e2 | 1093 | ospf6_lsa_delete (his); |
1094 | continue; | |
1095 | } | |
1096 | ||
1097 | /* Check if the LSA is on his retrans-list */ | |
1098 | mine = ospf6_lsdb_lookup (his->header->type, his->header->id, | |
1099 | his->header->adv_router, on->retrans_list); | |
1100 | if (mine == NULL) | |
1101 | { | |
1102 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1103 | zlog_debug ("Not on %s's retrans-list", on->name); |
508e53e2 | 1104 | ospf6_lsa_delete (his); |
1105 | continue; | |
1106 | } | |
1107 | ||
1108 | if (ospf6_lsa_compare (his, mine) != 0) | |
1109 | { | |
1110 | /* Log this questionable acknowledgement, | |
1111 | and examine the next one. */ | |
1112 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1113 | zlog_debug ("Questionable acknowledgement"); |
508e53e2 | 1114 | ospf6_lsa_delete (his); |
1115 | continue; | |
1116 | } | |
1117 | ||
6452df09 | 1118 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) |
c6487d61 | 1119 | zlog_debug ("Acknowledged, remove from %s's retrans-list", |
1120 | on->name); | |
508e53e2 | 1121 | |
1122 | if (OSPF6_LSA_IS_MAXAGE (mine)) | |
1123 | ospf6_maxage_remove (on->ospf6_if->area->ospf6); | |
1124 | ||
6452df09 | 1125 | ospf6_decrement_retrans_count (mine); |
508e53e2 | 1126 | ospf6_lsdb_remove (mine, on->retrans_list); |
1127 | ospf6_lsa_delete (his); | |
1128 | } | |
1129 | ||
1130 | if (p != OSPF6_MESSAGE_END (oh)) | |
1131 | { | |
1132 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1133 | zlog_debug ("Trailing garbage ignored"); |
508e53e2 | 1134 | } |
1135 | } | |
1136 | ||
0c083ee9 | 1137 | u_char *recvbuf = NULL; |
1138 | u_char *sendbuf = NULL; | |
1139 | unsigned int iobuflen = 0; | |
3b4cd3a9 | 1140 | |
1141 | int | |
0c083ee9 | 1142 | ospf6_iobuf_size (unsigned int size) |
3b4cd3a9 | 1143 | { |
1144 | char *recvnew, *sendnew; | |
1145 | ||
1146 | if (size <= iobuflen) | |
1147 | return iobuflen; | |
1148 | ||
1149 | recvnew = XMALLOC (MTYPE_OSPF6_MESSAGE, size); | |
1150 | sendnew = XMALLOC (MTYPE_OSPF6_MESSAGE, size); | |
1151 | if (recvnew == NULL || sendnew == NULL) | |
1152 | { | |
b596c71e | 1153 | if (recvnew) |
1154 | XFREE (MTYPE_OSPF6_MESSAGE, recvnew); | |
1155 | if (sendnew) | |
1156 | XFREE (MTYPE_OSPF6_MESSAGE, sendnew); | |
c6487d61 | 1157 | zlog_debug ("Could not allocate I/O buffer of size %d.", size); |
3b4cd3a9 | 1158 | return iobuflen; |
1159 | } | |
1160 | ||
1161 | if (recvbuf) | |
1162 | XFREE (MTYPE_OSPF6_MESSAGE, recvbuf); | |
1163 | if (sendbuf) | |
1164 | XFREE (MTYPE_OSPF6_MESSAGE, sendbuf); | |
1165 | recvbuf = recvnew; | |
1166 | sendbuf = sendnew; | |
1167 | iobuflen = size; | |
1168 | ||
1169 | return iobuflen; | |
1170 | } | |
508e53e2 | 1171 | |
1172 | int | |
1173 | ospf6_receive (struct thread *thread) | |
1174 | { | |
0c083ee9 | 1175 | int sockfd; |
1176 | unsigned int len; | |
508e53e2 | 1177 | char srcname[64], dstname[64]; |
1178 | struct in6_addr src, dst; | |
1179 | unsigned int ifindex; | |
1180 | struct iovec iovector[2]; | |
1181 | struct ospf6_interface *oi; | |
1182 | struct ospf6_header *oh; | |
1183 | ||
1184 | /* add next read thread */ | |
1185 | sockfd = THREAD_FD (thread); | |
1186 | thread_add_read (master, ospf6_receive, NULL, sockfd); | |
1187 | ||
1188 | /* initialize */ | |
3b4cd3a9 | 1189 | memset (recvbuf, 0, iobuflen); |
508e53e2 | 1190 | iovector[0].iov_base = recvbuf; |
3b4cd3a9 | 1191 | iovector[0].iov_len = iobuflen; |
508e53e2 | 1192 | iovector[1].iov_base = NULL; |
1193 | iovector[1].iov_len = 0; | |
1194 | ||
1195 | /* receive message */ | |
1196 | len = ospf6_recvmsg (&src, &dst, &ifindex, iovector); | |
3b4cd3a9 | 1197 | if (len > iobuflen) |
508e53e2 | 1198 | { |
1199 | zlog_err ("Excess message read"); | |
1200 | return 0; | |
1201 | } | |
1202 | else if (len < sizeof (struct ospf6_header)) | |
1203 | { | |
1204 | zlog_err ("Deficient message read"); | |
1205 | return 0; | |
1206 | } | |
1207 | ||
1208 | oi = ospf6_interface_lookup_by_ifindex (ifindex); | |
1209 | if (oi == NULL || oi->area == NULL) | |
1210 | { | |
c6487d61 | 1211 | zlog_debug ("Message received on disabled interface"); |
508e53e2 | 1212 | return 0; |
1213 | } | |
1214 | ||
1215 | oh = (struct ospf6_header *) recvbuf; | |
1216 | ||
1217 | /* Log */ | |
1218 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
1219 | { | |
1220 | inet_ntop (AF_INET6, &src, srcname, sizeof (srcname)); | |
1221 | inet_ntop (AF_INET6, &dst, dstname, sizeof (dstname)); | |
c6487d61 | 1222 | zlog_debug ("%s received on %s", |
508e53e2 | 1223 | OSPF6_MESSAGE_TYPE_NAME (oh->type), oi->interface->name); |
c6487d61 | 1224 | zlog_debug (" src: %s", srcname); |
1225 | zlog_debug (" dst: %s", dstname); | |
508e53e2 | 1226 | if (len != ntohs (oh->length)) |
c6487d61 | 1227 | zlog_debug ("Message length does not match actually received: %d", len); |
508e53e2 | 1228 | |
1229 | switch (oh->type) | |
1230 | { | |
1231 | case OSPF6_MESSAGE_TYPE_HELLO: | |
1232 | ospf6_hello_print (oh); | |
1233 | break; | |
1234 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1235 | ospf6_dbdesc_print (oh); | |
1236 | break; | |
1237 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1238 | ospf6_lsreq_print (oh); | |
1239 | break; | |
1240 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1241 | ospf6_lsupdate_print (oh); | |
1242 | break; | |
1243 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1244 | ospf6_lsack_print (oh); | |
1245 | break; | |
1246 | default: | |
c6487d61 | 1247 | zlog_debug ("Unknown message"); |
508e53e2 | 1248 | break; |
1249 | } | |
1250 | } | |
1251 | ||
1252 | if (CHECK_FLAG (oi->flag, OSPF6_INTERFACE_PASSIVE)) | |
1253 | { | |
1254 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) | |
c6487d61 | 1255 | zlog_debug ("Ignore message on passive interface %s", |
508e53e2 | 1256 | oi->interface->name); |
1257 | return 0; | |
1258 | } | |
1259 | ||
1260 | switch (oh->type) | |
1261 | { | |
1262 | case OSPF6_MESSAGE_TYPE_HELLO: | |
1263 | ospf6_hello_recv (&src, &dst, oi, oh); | |
1264 | break; | |
1265 | ||
1266 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1267 | ospf6_dbdesc_recv (&src, &dst, oi, oh); | |
1268 | break; | |
1269 | ||
1270 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1271 | ospf6_lsreq_recv (&src, &dst, oi, oh); | |
1272 | break; | |
1273 | ||
1274 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1275 | ospf6_lsupdate_recv (&src, &dst, oi, oh); | |
1276 | break; | |
1277 | ||
1278 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1279 | ospf6_lsack_recv (&src, &dst, oi, oh); | |
1280 | break; | |
1281 | ||
1282 | default: | |
1283 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) | |
c6487d61 | 1284 | zlog_debug ("Unknown message"); |
508e53e2 | 1285 | break; |
1286 | } | |
718e3744 | 1287 | |
508e53e2 | 1288 | return 0; |
718e3744 | 1289 | } |
1290 | ||
1291 | void | |
508e53e2 | 1292 | ospf6_send (struct in6_addr *src, struct in6_addr *dst, |
1293 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 1294 | { |
508e53e2 | 1295 | int len; |
1296 | char srcname[64], dstname[64]; | |
1297 | struct iovec iovector[2]; | |
718e3744 | 1298 | |
508e53e2 | 1299 | /* initialize */ |
1300 | iovector[0].iov_base = (caddr_t) oh; | |
1301 | iovector[0].iov_len = ntohs (oh->length); | |
1302 | iovector[1].iov_base = NULL; | |
1303 | iovector[1].iov_len = 0; | |
1304 | ||
1305 | /* fill OSPF header */ | |
1306 | oh->version = OSPFV3_VERSION; | |
1307 | /* message type must be set before */ | |
1308 | /* message length must be set before */ | |
1309 | oh->router_id = oi->area->ospf6->router_id; | |
1310 | oh->area_id = oi->area->area_id; | |
1311 | /* checksum is calculated by kernel */ | |
1312 | oh->instance_id = oi->instance_id; | |
1313 | oh->reserved = 0; | |
718e3744 | 1314 | |
508e53e2 | 1315 | /* Log */ |
1316 | if (IS_OSPF6_DEBUG_MESSAGE (oh->type, SEND)) | |
718e3744 | 1317 | { |
508e53e2 | 1318 | inet_ntop (AF_INET6, dst, dstname, sizeof (dstname)); |
1319 | if (src) | |
1320 | inet_ntop (AF_INET6, src, srcname, sizeof (srcname)); | |
718e3744 | 1321 | else |
508e53e2 | 1322 | memset (srcname, 0, sizeof (srcname)); |
c6487d61 | 1323 | zlog_debug ("%s send on %s", |
508e53e2 | 1324 | OSPF6_MESSAGE_TYPE_NAME (oh->type), oi->interface->name); |
c6487d61 | 1325 | zlog_debug (" src: %s", srcname); |
1326 | zlog_debug (" dst: %s", dstname); | |
508e53e2 | 1327 | |
1328 | switch (oh->type) | |
718e3744 | 1329 | { |
508e53e2 | 1330 | case OSPF6_MESSAGE_TYPE_HELLO: |
1331 | ospf6_hello_print (oh); | |
1332 | break; | |
1333 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1334 | ospf6_dbdesc_print (oh); | |
1335 | break; | |
1336 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1337 | ospf6_lsreq_print (oh); | |
1338 | break; | |
1339 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1340 | ospf6_lsupdate_print (oh); | |
1341 | break; | |
1342 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1343 | ospf6_lsack_print (oh); | |
1344 | break; | |
1345 | default: | |
c6487d61 | 1346 | zlog_debug ("Unknown message"); |
508e53e2 | 1347 | assert (0); |
1348 | break; | |
718e3744 | 1349 | } |
718e3744 | 1350 | } |
1351 | ||
508e53e2 | 1352 | /* send message */ |
1353 | len = ospf6_sendmsg (src, dst, &oi->interface->ifindex, iovector); | |
1354 | if (len != ntohs (oh->length)) | |
1355 | zlog_err ("Could not send entire message"); | |
718e3744 | 1356 | } |
1357 | ||
508e53e2 | 1358 | int |
1359 | ospf6_hello_send (struct thread *thread) | |
718e3744 | 1360 | { |
508e53e2 | 1361 | struct ospf6_interface *oi; |
1362 | struct ospf6_header *oh; | |
1363 | struct ospf6_hello *hello; | |
0c083ee9 | 1364 | u_char *p; |
1eb8ef25 | 1365 | struct listnode *node, *nnode; |
508e53e2 | 1366 | struct ospf6_neighbor *on; |
718e3744 | 1367 | |
508e53e2 | 1368 | oi = (struct ospf6_interface *) THREAD_ARG (thread); |
1369 | oi->thread_send_hello = (struct thread *) NULL; | |
718e3744 | 1370 | |
508e53e2 | 1371 | if (oi->state <= OSPF6_INTERFACE_DOWN) |
718e3744 | 1372 | { |
508e53e2 | 1373 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_HELLO, SEND)) |
c6487d61 | 1374 | zlog_debug ("Unable to send Hello on down interface %s", |
508e53e2 | 1375 | oi->interface->name); |
1376 | return 0; | |
718e3744 | 1377 | } |
1378 | ||
508e53e2 | 1379 | /* set next thread */ |
1380 | oi->thread_send_hello = thread_add_timer (master, ospf6_hello_send, | |
1381 | oi, oi->hello_interval); | |
718e3744 | 1382 | |
3b4cd3a9 | 1383 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1384 | oh = (struct ospf6_header *) sendbuf; |
1385 | hello = (struct ospf6_hello *)((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 1386 | |
508e53e2 | 1387 | hello->interface_id = htonl (oi->interface->ifindex); |
1388 | hello->priority = oi->priority; | |
1389 | hello->options[0] = oi->area->options[0]; | |
1390 | hello->options[1] = oi->area->options[1]; | |
1391 | hello->options[2] = oi->area->options[2]; | |
1392 | hello->hello_interval = htons (oi->hello_interval); | |
1393 | hello->dead_interval = htons (oi->dead_interval); | |
1394 | hello->drouter = oi->drouter; | |
1395 | hello->bdrouter = oi->bdrouter; | |
718e3744 | 1396 | |
508e53e2 | 1397 | p = (char *)((caddr_t) hello + sizeof (struct ospf6_hello)); |
718e3744 | 1398 | |
1eb8ef25 | 1399 | for (ALL_LIST_ELEMENTS (oi->neighbor_list, node, nnode, on)) |
718e3744 | 1400 | { |
508e53e2 | 1401 | if (on->state < OSPF6_NEIGHBOR_INIT) |
1402 | continue; | |
1403 | ||
1404 | if (p - sendbuf + sizeof (u_int32_t) > oi->ifmtu) | |
1405 | { | |
1406 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_HELLO, SEND)) | |
c6487d61 | 1407 | zlog_debug ("sending Hello message: exceeds I/F MTU"); |
508e53e2 | 1408 | break; |
1409 | } | |
718e3744 | 1410 | |
508e53e2 | 1411 | memcpy (p, &on->router_id, sizeof (u_int32_t)); |
1412 | p += sizeof (u_int32_t); | |
1413 | } | |
718e3744 | 1414 | |
508e53e2 | 1415 | oh->type = OSPF6_MESSAGE_TYPE_HELLO; |
1416 | oh->length = htons (p - sendbuf); | |
718e3744 | 1417 | |
508e53e2 | 1418 | ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh); |
1419 | return 0; | |
718e3744 | 1420 | } |
1421 | ||
1422 | int | |
508e53e2 | 1423 | ospf6_dbdesc_send (struct thread *thread) |
718e3744 | 1424 | { |
508e53e2 | 1425 | struct ospf6_neighbor *on; |
1426 | struct ospf6_header *oh; | |
1427 | struct ospf6_dbdesc *dbdesc; | |
0c083ee9 | 1428 | u_char *p; |
508e53e2 | 1429 | struct ospf6_lsa *lsa; |
718e3744 | 1430 | |
508e53e2 | 1431 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); |
1432 | on->thread_send_dbdesc = (struct thread *) NULL; | |
718e3744 | 1433 | |
508e53e2 | 1434 | if (on->state < OSPF6_NEIGHBOR_EXSTART) |
1435 | { | |
1436 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_DBDESC, SEND)) | |
c6487d61 | 1437 | zlog_debug ("Quit to send DbDesc to neighbor %s state %s", |
1438 | on->name, ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 1439 | return 0; |
1440 | } | |
718e3744 | 1441 | |
508e53e2 | 1442 | /* set next thread if master */ |
1443 | if (CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT)) | |
1444 | on->thread_send_dbdesc = | |
1445 | thread_add_timer (master, ospf6_dbdesc_send, on, | |
1446 | on->ospf6_if->rxmt_interval); | |
718e3744 | 1447 | |
3b4cd3a9 | 1448 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1449 | oh = (struct ospf6_header *) sendbuf; |
1450 | dbdesc = (struct ospf6_dbdesc *)((caddr_t) oh + | |
1451 | sizeof (struct ospf6_header)); | |
718e3744 | 1452 | |
508e53e2 | 1453 | /* if this is initial one, initialize sequence number for DbDesc */ |
1454 | if (CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT)) | |
1455 | { | |
1456 | struct timeval tv; | |
1457 | if (gettimeofday (&tv, (struct timezone *) NULL) < 0) | |
1458 | tv.tv_sec = 1; | |
1459 | on->dbdesc_seqnum = tv.tv_sec; | |
1460 | } | |
1461 | ||
1462 | dbdesc->options[0] = on->ospf6_if->area->options[0]; | |
1463 | dbdesc->options[1] = on->ospf6_if->area->options[1]; | |
1464 | dbdesc->options[2] = on->ospf6_if->area->options[2]; | |
1465 | dbdesc->ifmtu = htons (on->ospf6_if->ifmtu); | |
1466 | dbdesc->bits = on->dbdesc_bits; | |
1467 | dbdesc->seqnum = htonl (on->dbdesc_seqnum); | |
718e3744 | 1468 | |
508e53e2 | 1469 | /* if this is not initial one, set LSA headers in dbdesc */ |
1470 | p = (char *)((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc)); | |
1471 | if (! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT)) | |
718e3744 | 1472 | { |
508e53e2 | 1473 | for (lsa = ospf6_lsdb_head (on->dbdesc_list); lsa; |
1474 | lsa = ospf6_lsdb_next (lsa)) | |
1475 | { | |
1476 | ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay); | |
1477 | ||
1478 | /* MTU check */ | |
1479 | if (p - sendbuf + sizeof (struct ospf6_lsa_header) > | |
1480 | on->ospf6_if->ifmtu) | |
1481 | { | |
1482 | ospf6_lsa_unlock (lsa); | |
1483 | break; | |
1484 | } | |
1485 | memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header)); | |
1486 | p += sizeof (struct ospf6_lsa_header); | |
1487 | } | |
718e3744 | 1488 | } |
1489 | ||
508e53e2 | 1490 | oh->type = OSPF6_MESSAGE_TYPE_DBDESC; |
1491 | oh->length = htons (p - sendbuf); | |
718e3744 | 1492 | |
508e53e2 | 1493 | ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
1494 | on->ospf6_if, oh); | |
718e3744 | 1495 | return 0; |
1496 | } | |
1497 | ||
718e3744 | 1498 | int |
508e53e2 | 1499 | ospf6_dbdesc_send_newone (struct thread *thread) |
718e3744 | 1500 | { |
508e53e2 | 1501 | struct ospf6_neighbor *on; |
1502 | struct ospf6_lsa *lsa; | |
1503 | unsigned int size = 0; | |
1504 | ||
1505 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); | |
508e53e2 | 1506 | ospf6_lsdb_remove_all (on->dbdesc_list); |
1507 | ||
1508 | /* move LSAs from summary_list to dbdesc_list (within neighbor structure) | |
1509 | so that ospf6_send_dbdesc () can send those LSAs */ | |
1510 | size = sizeof (struct ospf6_lsa_header) + sizeof (struct ospf6_dbdesc); | |
1511 | for (lsa = ospf6_lsdb_head (on->summary_list); lsa; | |
1512 | lsa = ospf6_lsdb_next (lsa)) | |
718e3744 | 1513 | { |
508e53e2 | 1514 | if (size + sizeof (struct ospf6_lsa_header) > on->ospf6_if->ifmtu) |
718e3744 | 1515 | { |
508e53e2 | 1516 | ospf6_lsa_unlock (lsa); |
1517 | break; | |
718e3744 | 1518 | } |
508e53e2 | 1519 | |
508e53e2 | 1520 | ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->dbdesc_list); |
1521 | ospf6_lsdb_remove (lsa, on->summary_list); | |
1522 | size += sizeof (struct ospf6_lsa_header); | |
718e3744 | 1523 | } |
1524 | ||
508e53e2 | 1525 | if (on->summary_list->count == 0) |
1526 | UNSET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT); | |
718e3744 | 1527 | |
508e53e2 | 1528 | /* If slave, More bit check must be done here */ |
1529 | if (! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT) && /* Slave */ | |
1530 | ! CHECK_FLAG (on->dbdesc_last.bits, OSPF6_DBDESC_MBIT) && | |
1531 | ! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT)) | |
1532 | thread_add_event (master, exchange_done, on, 0); | |
718e3744 | 1533 | |
508e53e2 | 1534 | thread_execute (master, ospf6_dbdesc_send, on, 0); |
1535 | return 0; | |
1536 | } | |
718e3744 | 1537 | |
508e53e2 | 1538 | int |
1539 | ospf6_lsreq_send (struct thread *thread) | |
1540 | { | |
1541 | struct ospf6_neighbor *on; | |
1542 | struct ospf6_header *oh; | |
1543 | struct ospf6_lsreq_entry *e; | |
0c083ee9 | 1544 | u_char *p; |
508e53e2 | 1545 | struct ospf6_lsa *lsa; |
718e3744 | 1546 | |
508e53e2 | 1547 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); |
1548 | on->thread_send_lsreq = (struct thread *) NULL; | |
1549 | ||
1550 | /* LSReq will be sent only in ExStart or Loading */ | |
1551 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE && | |
1552 | on->state != OSPF6_NEIGHBOR_LOADING) | |
718e3744 | 1553 | { |
508e53e2 | 1554 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSREQ, SEND)) |
c6487d61 | 1555 | zlog_debug ("Quit to send LSReq to neighbor %s state %s", |
1556 | on->name, ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 1557 | return 0; |
718e3744 | 1558 | } |
1559 | ||
508e53e2 | 1560 | /* schedule loading_done if request list is empty */ |
1561 | if (on->request_list->count == 0) | |
1562 | { | |
1563 | thread_add_event (master, loading_done, on, 0); | |
718e3744 | 1564 | return 0; |
1565 | } | |
1566 | ||
508e53e2 | 1567 | /* set next thread */ |
1568 | on->thread_send_lsreq = | |
1569 | thread_add_timer (master, ospf6_lsreq_send, on, | |
1570 | on->ospf6_if->rxmt_interval); | |
718e3744 | 1571 | |
3b4cd3a9 | 1572 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1573 | oh = (struct ospf6_header *) sendbuf; |
718e3744 | 1574 | |
508e53e2 | 1575 | /* set Request entries in lsreq */ |
1576 | p = (char *)((caddr_t) oh + sizeof (struct ospf6_header)); | |
1577 | for (lsa = ospf6_lsdb_head (on->request_list); lsa; | |
1578 | lsa = ospf6_lsdb_next (lsa)) | |
718e3744 | 1579 | { |
508e53e2 | 1580 | /* MTU check */ |
1581 | if (p - sendbuf + sizeof (struct ospf6_lsreq_entry) > on->ospf6_if->ifmtu) | |
718e3744 | 1582 | { |
508e53e2 | 1583 | ospf6_lsa_unlock (lsa); |
718e3744 | 1584 | break; |
1585 | } | |
1586 | ||
508e53e2 | 1587 | e = (struct ospf6_lsreq_entry *) p; |
1588 | e->type = lsa->header->type; | |
1589 | e->id = lsa->header->id; | |
1590 | e->adv_router = lsa->header->adv_router; | |
1591 | p += sizeof (struct ospf6_lsreq_entry); | |
718e3744 | 1592 | } |
718e3744 | 1593 | |
508e53e2 | 1594 | oh->type = OSPF6_MESSAGE_TYPE_LSREQ; |
1595 | oh->length = htons (p - sendbuf); | |
718e3744 | 1596 | |
508e53e2 | 1597 | ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
1598 | on->ospf6_if, oh); | |
718e3744 | 1599 | return 0; |
1600 | } | |
1601 | ||
718e3744 | 1602 | int |
508e53e2 | 1603 | ospf6_lsupdate_send_neighbor (struct thread *thread) |
718e3744 | 1604 | { |
508e53e2 | 1605 | struct ospf6_neighbor *on; |
1606 | struct ospf6_header *oh; | |
1607 | struct ospf6_lsupdate *lsupdate; | |
0c083ee9 | 1608 | u_char *p; |
508e53e2 | 1609 | int num; |
718e3744 | 1610 | struct ospf6_lsa *lsa; |
718e3744 | 1611 | |
508e53e2 | 1612 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); |
1613 | on->thread_send_lsupdate = (struct thread *) NULL; | |
718e3744 | 1614 | |
6452df09 | 1615 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) |
c6487d61 | 1616 | zlog_debug ("LSUpdate to neighbor %s", on->name); |
6452df09 | 1617 | |
508e53e2 | 1618 | if (on->state < OSPF6_NEIGHBOR_EXCHANGE) |
1619 | { | |
1620 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) | |
c6487d61 | 1621 | zlog_debug ("Quit to send (neighbor state %s)", |
1622 | ospf6_neighbor_state_str[on->state]); | |
508e53e2 | 1623 | return 0; |
1624 | } | |
718e3744 | 1625 | |
508e53e2 | 1626 | /* if we have nothing to send, return */ |
1627 | if (on->lsupdate_list->count == 0 && | |
1628 | on->retrans_list->count == 0) | |
6452df09 | 1629 | { |
1630 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) | |
c6487d61 | 1631 | zlog_debug ("Quit to send (nothing to send)"); |
6452df09 | 1632 | return 0; |
1633 | } | |
508e53e2 | 1634 | |
3b4cd3a9 | 1635 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1636 | oh = (struct ospf6_header *) sendbuf; |
1637 | lsupdate = (struct ospf6_lsupdate *) | |
1638 | ((caddr_t) oh + sizeof (struct ospf6_header)); | |
718e3744 | 1639 | |
508e53e2 | 1640 | p = (char *)((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate)); |
1641 | num = 0; | |
718e3744 | 1642 | |
508e53e2 | 1643 | /* lsupdate_list lists those LSA which doesn't need to be |
1644 | retransmitted. remove those from the list */ | |
1645 | for (lsa = ospf6_lsdb_head (on->lsupdate_list); lsa; | |
1646 | lsa = ospf6_lsdb_next (lsa)) | |
718e3744 | 1647 | { |
508e53e2 | 1648 | /* MTU check */ |
0c083ee9 | 1649 | if ( (p - sendbuf + (unsigned int)OSPF6_LSA_SIZE (lsa->header)) |
1650 | > on->ospf6_if->ifmtu) | |
718e3744 | 1651 | { |
508e53e2 | 1652 | ospf6_lsa_unlock (lsa); |
1653 | break; | |
1654 | } | |
718e3744 | 1655 | |
508e53e2 | 1656 | ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay); |
1657 | memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header)); | |
1658 | p += OSPF6_LSA_SIZE (lsa->header); | |
1659 | num++; | |
718e3744 | 1660 | |
508e53e2 | 1661 | assert (lsa->lock == 2); |
1662 | ospf6_lsdb_remove (lsa, on->lsupdate_list); | |
1663 | } | |
1664 | ||
1665 | for (lsa = ospf6_lsdb_head (on->retrans_list); lsa; | |
1666 | lsa = ospf6_lsdb_next (lsa)) | |
1667 | { | |
1668 | /* MTU check */ | |
0c083ee9 | 1669 | if ( (p - sendbuf + (unsigned int)OSPF6_LSA_SIZE (lsa->header)) |
1670 | > on->ospf6_if->ifmtu) | |
508e53e2 | 1671 | { |
1672 | ospf6_lsa_unlock (lsa); | |
1673 | break; | |
718e3744 | 1674 | } |
508e53e2 | 1675 | |
508e53e2 | 1676 | ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay); |
1677 | memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header)); | |
1678 | p += OSPF6_LSA_SIZE (lsa->header); | |
1679 | num++; | |
718e3744 | 1680 | } |
1681 | ||
508e53e2 | 1682 | lsupdate->lsa_number = htonl (num); |
1683 | ||
1684 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
1685 | oh->length = htons (p - sendbuf); | |
718e3744 | 1686 | |
508e53e2 | 1687 | ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
1688 | on->ospf6_if, oh); | |
718e3744 | 1689 | |
508e53e2 | 1690 | if (on->lsupdate_list->count != 0 || |
1691 | on->retrans_list->count != 0) | |
1692 | { | |
1693 | if (on->lsupdate_list->count != 0) | |
1694 | on->thread_send_lsupdate = | |
1695 | thread_add_event (master, ospf6_lsupdate_send_neighbor, on, 0); | |
1696 | else | |
1697 | on->thread_send_lsupdate = | |
1698 | thread_add_timer (master, ospf6_lsupdate_send_neighbor, on, | |
1699 | on->ospf6_if->rxmt_interval); | |
1700 | } | |
718e3744 | 1701 | |
1702 | return 0; | |
1703 | } | |
1704 | ||
1705 | int | |
508e53e2 | 1706 | ospf6_lsupdate_send_interface (struct thread *thread) |
718e3744 | 1707 | { |
508e53e2 | 1708 | struct ospf6_interface *oi; |
1709 | struct ospf6_header *oh; | |
1710 | struct ospf6_lsupdate *lsupdate; | |
0c083ee9 | 1711 | u_char *p; |
508e53e2 | 1712 | int num; |
718e3744 | 1713 | struct ospf6_lsa *lsa; |
718e3744 | 1714 | |
508e53e2 | 1715 | oi = (struct ospf6_interface *) THREAD_ARG (thread); |
1716 | oi->thread_send_lsupdate = (struct thread *) NULL; | |
718e3744 | 1717 | |
508e53e2 | 1718 | if (oi->state <= OSPF6_INTERFACE_WAITING) |
718e3744 | 1719 | { |
508e53e2 | 1720 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) |
c6487d61 | 1721 | zlog_debug ("Quit to send LSUpdate to interface %s state %s", |
1722 | oi->interface->name, ospf6_interface_state_str[oi->state]); | |
508e53e2 | 1723 | return 0; |
1724 | } | |
718e3744 | 1725 | |
508e53e2 | 1726 | /* if we have nothing to send, return */ |
1727 | if (oi->lsupdate_list->count == 0) | |
1728 | return 0; | |
718e3744 | 1729 | |
3b4cd3a9 | 1730 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1731 | oh = (struct ospf6_header *) sendbuf; |
1732 | lsupdate = (struct ospf6_lsupdate *)((caddr_t) oh + | |
1733 | sizeof (struct ospf6_header)); | |
718e3744 | 1734 | |
508e53e2 | 1735 | p = (char *)((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate)); |
1736 | num = 0; | |
718e3744 | 1737 | |
508e53e2 | 1738 | for (lsa = ospf6_lsdb_head (oi->lsupdate_list); lsa; |
1739 | lsa = ospf6_lsdb_next (lsa)) | |
1740 | { | |
1741 | /* MTU check */ | |
0c083ee9 | 1742 | if ( (p - sendbuf + ((unsigned int)OSPF6_LSA_SIZE (lsa->header))) |
1743 | > oi->ifmtu) | |
718e3744 | 1744 | { |
508e53e2 | 1745 | ospf6_lsa_unlock (lsa); |
1746 | break; | |
718e3744 | 1747 | } |
718e3744 | 1748 | |
508e53e2 | 1749 | ospf6_lsa_age_update_to_send (lsa, oi->transdelay); |
1750 | memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header)); | |
1751 | p += OSPF6_LSA_SIZE (lsa->header); | |
1752 | num++; | |
718e3744 | 1753 | |
508e53e2 | 1754 | assert (lsa->lock == 2); |
1755 | ospf6_lsdb_remove (lsa, oi->lsupdate_list); | |
1756 | } | |
718e3744 | 1757 | |
508e53e2 | 1758 | lsupdate->lsa_number = htonl (num); |
718e3744 | 1759 | |
508e53e2 | 1760 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; |
1761 | oh->length = htons (p - sendbuf); | |
718e3744 | 1762 | |
508e53e2 | 1763 | if (oi->state == OSPF6_INTERFACE_DR || |
1764 | oi->state == OSPF6_INTERFACE_BDR) | |
1765 | ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh); | |
1766 | else | |
1767 | ospf6_send (oi->linklocal_addr, &alldrouters6, oi, oh); | |
718e3744 | 1768 | |
508e53e2 | 1769 | if (oi->lsupdate_list->count > 0) |
1770 | { | |
1771 | oi->thread_send_lsupdate = | |
1772 | thread_add_event (master, ospf6_lsupdate_send_interface, oi, 0); | |
1773 | } | |
718e3744 | 1774 | |
718e3744 | 1775 | return 0; |
1776 | } | |
1777 | ||
1778 | int | |
508e53e2 | 1779 | ospf6_lsack_send_neighbor (struct thread *thread) |
718e3744 | 1780 | { |
508e53e2 | 1781 | struct ospf6_neighbor *on; |
1782 | struct ospf6_header *oh; | |
0c083ee9 | 1783 | u_char *p; |
718e3744 | 1784 | struct ospf6_lsa *lsa; |
718e3744 | 1785 | |
508e53e2 | 1786 | on = (struct ospf6_neighbor *) THREAD_ARG (thread); |
1787 | on->thread_send_lsack = (struct thread *) NULL; | |
718e3744 | 1788 | |
508e53e2 | 1789 | if (on->state < OSPF6_NEIGHBOR_EXCHANGE) |
718e3744 | 1790 | { |
508e53e2 | 1791 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSACK, SEND)) |
c6487d61 | 1792 | zlog_debug ("Quit to send LSAck to neighbor %s state %s", |
1793 | on->name, ospf6_neighbor_state_str[on->state]); | |
718e3744 | 1794 | return 0; |
1795 | } | |
1796 | ||
508e53e2 | 1797 | /* if we have nothing to send, return */ |
1798 | if (on->lsack_list->count == 0) | |
1799 | return 0; | |
718e3744 | 1800 | |
3b4cd3a9 | 1801 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1802 | oh = (struct ospf6_header *) sendbuf; |
718e3744 | 1803 | |
508e53e2 | 1804 | p = (char *)((caddr_t) oh + sizeof (struct ospf6_header)); |
718e3744 | 1805 | |
508e53e2 | 1806 | for (lsa = ospf6_lsdb_head (on->lsack_list); lsa; |
1807 | lsa = ospf6_lsdb_next (lsa)) | |
1808 | { | |
1809 | /* MTU check */ | |
1810 | if (p - sendbuf + sizeof (struct ospf6_lsa_header) > on->ospf6_if->ifmtu) | |
1811 | { | |
1812 | /* if we run out of packet size/space here, | |
1813 | better to try again soon. */ | |
1814 | THREAD_OFF (on->thread_send_lsack); | |
1815 | on->thread_send_lsack = | |
1816 | thread_add_event (master, ospf6_lsack_send_neighbor, on, 0); | |
718e3744 | 1817 | |
508e53e2 | 1818 | ospf6_lsa_unlock (lsa); |
1819 | break; | |
1820 | } | |
718e3744 | 1821 | |
508e53e2 | 1822 | ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay); |
1823 | memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header)); | |
1824 | p += sizeof (struct ospf6_lsa_header); | |
718e3744 | 1825 | |
508e53e2 | 1826 | assert (lsa->lock == 2); |
1827 | ospf6_lsdb_remove (lsa, on->lsack_list); | |
1828 | } | |
718e3744 | 1829 | |
508e53e2 | 1830 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; |
1831 | oh->length = htons (p - sendbuf); | |
718e3744 | 1832 | |
508e53e2 | 1833 | ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
1834 | on->ospf6_if, oh); | |
718e3744 | 1835 | return 0; |
1836 | } | |
1837 | ||
718e3744 | 1838 | int |
508e53e2 | 1839 | ospf6_lsack_send_interface (struct thread *thread) |
718e3744 | 1840 | { |
508e53e2 | 1841 | struct ospf6_interface *oi; |
1842 | struct ospf6_header *oh; | |
0c083ee9 | 1843 | u_char *p; |
718e3744 | 1844 | struct ospf6_lsa *lsa; |
718e3744 | 1845 | |
508e53e2 | 1846 | oi = (struct ospf6_interface *) THREAD_ARG (thread); |
1847 | oi->thread_send_lsack = (struct thread *) NULL; | |
718e3744 | 1848 | |
508e53e2 | 1849 | if (oi->state <= OSPF6_INTERFACE_WAITING) |
1850 | { | |
1851 | if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSACK, SEND)) | |
c6487d61 | 1852 | zlog_debug ("Quit to send LSAck to interface %s state %s", |
1853 | oi->interface->name, ospf6_interface_state_str[oi->state]); | |
508e53e2 | 1854 | return 0; |
1855 | } | |
718e3744 | 1856 | |
508e53e2 | 1857 | /* if we have nothing to send, return */ |
1858 | if (oi->lsack_list->count == 0) | |
1859 | return 0; | |
718e3744 | 1860 | |
3b4cd3a9 | 1861 | memset (sendbuf, 0, iobuflen); |
508e53e2 | 1862 | oh = (struct ospf6_header *) sendbuf; |
718e3744 | 1863 | |
508e53e2 | 1864 | p = (char *)((caddr_t) oh + sizeof (struct ospf6_header)); |
718e3744 | 1865 | |
508e53e2 | 1866 | for (lsa = ospf6_lsdb_head (oi->lsack_list); lsa; |
1867 | lsa = ospf6_lsdb_next (lsa)) | |
718e3744 | 1868 | { |
508e53e2 | 1869 | /* MTU check */ |
1870 | if (p - sendbuf + sizeof (struct ospf6_lsa_header) > oi->ifmtu) | |
1871 | { | |
1872 | /* if we run out of packet size/space here, | |
1873 | better to try again soon. */ | |
1874 | THREAD_OFF (oi->thread_send_lsack); | |
1875 | oi->thread_send_lsack = | |
1876 | thread_add_event (master, ospf6_lsack_send_interface, oi, 0); | |
718e3744 | 1877 | |
508e53e2 | 1878 | ospf6_lsa_unlock (lsa); |
1879 | break; | |
1880 | } | |
718e3744 | 1881 | |
508e53e2 | 1882 | ospf6_lsa_age_update_to_send (lsa, oi->transdelay); |
1883 | memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header)); | |
1884 | p += sizeof (struct ospf6_lsa_header); | |
718e3744 | 1885 | |
508e53e2 | 1886 | assert (lsa->lock == 2); |
1887 | ospf6_lsdb_remove (lsa, oi->lsack_list); | |
1888 | } | |
718e3744 | 1889 | |
508e53e2 | 1890 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; |
1891 | oh->length = htons (p - sendbuf); | |
718e3744 | 1892 | |
508e53e2 | 1893 | if (oi->state == OSPF6_INTERFACE_DR || |
1894 | oi->state == OSPF6_INTERFACE_BDR) | |
1895 | ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh); | |
1896 | else | |
1897 | ospf6_send (oi->linklocal_addr, &alldrouters6, oi, oh); | |
718e3744 | 1898 | |
508e53e2 | 1899 | if (oi->thread_send_lsack == NULL && oi->lsack_list->count > 0) |
1900 | { | |
1901 | oi->thread_send_lsack = | |
1902 | thread_add_event (master, ospf6_lsack_send_interface, oi, 0); | |
1903 | } | |
718e3744 | 1904 | |
718e3744 | 1905 | return 0; |
1906 | } | |
1907 | ||
508e53e2 | 1908 | \f |
1909 | /* Commands */ | |
1910 | DEFUN (debug_ospf6_message, | |
1911 | debug_ospf6_message_cmd, | |
1912 | "debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all)", | |
1913 | DEBUG_STR | |
1914 | OSPF6_STR | |
1915 | "Debug OSPFv3 message\n" | |
1916 | "Debug Unknown message\n" | |
1917 | "Debug Hello message\n" | |
1918 | "Debug Database Description message\n" | |
1919 | "Debug Link State Request message\n" | |
1920 | "Debug Link State Update message\n" | |
1921 | "Debug Link State Acknowledgement message\n" | |
1922 | "Debug All message\n" | |
1923 | ) | |
718e3744 | 1924 | { |
508e53e2 | 1925 | unsigned char level = 0; |
1926 | int type = 0; | |
1927 | int i; | |
718e3744 | 1928 | |
508e53e2 | 1929 | assert (argc > 0); |
718e3744 | 1930 | |
508e53e2 | 1931 | /* check type */ |
1932 | if (! strncmp (argv[0], "u", 1)) | |
1933 | type = OSPF6_MESSAGE_TYPE_UNKNOWN; | |
1934 | else if (! strncmp (argv[0], "h", 1)) | |
1935 | type = OSPF6_MESSAGE_TYPE_HELLO; | |
1936 | else if (! strncmp (argv[0], "d", 1)) | |
1937 | type = OSPF6_MESSAGE_TYPE_DBDESC; | |
1938 | else if (! strncmp (argv[0], "lsr", 3)) | |
1939 | type = OSPF6_MESSAGE_TYPE_LSREQ; | |
1940 | else if (! strncmp (argv[0], "lsu", 3)) | |
1941 | type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
1942 | else if (! strncmp (argv[0], "lsa", 3)) | |
1943 | type = OSPF6_MESSAGE_TYPE_LSACK; | |
1944 | else if (! strncmp (argv[0], "a", 1)) | |
1945 | type = OSPF6_MESSAGE_TYPE_ALL; | |
1946 | ||
1947 | if (argc == 1) | |
1948 | level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV; | |
1949 | else if (! strncmp (argv[1], "s", 1)) | |
1950 | level = OSPF6_DEBUG_MESSAGE_SEND; | |
1951 | else if (! strncmp (argv[1], "r", 1)) | |
1952 | level = OSPF6_DEBUG_MESSAGE_RECV; | |
1953 | ||
1954 | if (type == OSPF6_MESSAGE_TYPE_ALL) | |
1955 | { | |
1956 | for (i = 0; i < 6; i++) | |
1957 | OSPF6_DEBUG_MESSAGE_ON (i, level); | |
1958 | } | |
1959 | else | |
1960 | OSPF6_DEBUG_MESSAGE_ON (type, level); | |
718e3744 | 1961 | |
508e53e2 | 1962 | return CMD_SUCCESS; |
718e3744 | 1963 | } |
1964 | ||
508e53e2 | 1965 | ALIAS (debug_ospf6_message, |
1966 | debug_ospf6_message_sendrecv_cmd, | |
1967 | "debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all) (send|recv)", | |
1968 | DEBUG_STR | |
1969 | OSPF6_STR | |
1970 | "Debug OSPFv3 message\n" | |
1971 | "Debug Unknown message\n" | |
1972 | "Debug Hello message\n" | |
1973 | "Debug Database Description message\n" | |
1974 | "Debug Link State Request message\n" | |
1975 | "Debug Link State Update message\n" | |
1976 | "Debug Link State Acknowledgement message\n" | |
1977 | "Debug All message\n" | |
1978 | "Debug only sending message\n" | |
1979 | "Debug only receiving message\n" | |
1980 | ); | |
718e3744 | 1981 | |
508e53e2 | 1982 | \f |
1983 | DEFUN (no_debug_ospf6_message, | |
1984 | no_debug_ospf6_message_cmd, | |
1985 | "no debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all)", | |
1986 | NO_STR | |
1987 | DEBUG_STR | |
1988 | OSPF6_STR | |
1989 | "Debug OSPFv3 message\n" | |
1990 | "Debug Unknown message\n" | |
1991 | "Debug Hello message\n" | |
1992 | "Debug Database Description message\n" | |
1993 | "Debug Link State Request message\n" | |
1994 | "Debug Link State Update message\n" | |
1995 | "Debug Link State Acknowledgement message\n" | |
1996 | "Debug All message\n" | |
1997 | ) | |
1998 | { | |
1999 | unsigned char level = 0; | |
2000 | int type = 0; | |
2001 | int i; | |
718e3744 | 2002 | |
508e53e2 | 2003 | assert (argc > 0); |
718e3744 | 2004 | |
508e53e2 | 2005 | /* check type */ |
2006 | if (! strncmp (argv[0], "u", 1)) | |
2007 | type = OSPF6_MESSAGE_TYPE_UNKNOWN; | |
2008 | else if (! strncmp (argv[0], "h", 1)) | |
2009 | type = OSPF6_MESSAGE_TYPE_HELLO; | |
2010 | else if (! strncmp (argv[0], "d", 1)) | |
2011 | type = OSPF6_MESSAGE_TYPE_DBDESC; | |
2012 | else if (! strncmp (argv[0], "lsr", 3)) | |
2013 | type = OSPF6_MESSAGE_TYPE_LSREQ; | |
2014 | else if (! strncmp (argv[0], "lsu", 3)) | |
2015 | type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2016 | else if (! strncmp (argv[0], "lsa", 3)) | |
2017 | type = OSPF6_MESSAGE_TYPE_LSACK; | |
2018 | else if (! strncmp (argv[0], "a", 1)) | |
2019 | type = OSPF6_MESSAGE_TYPE_ALL; | |
2020 | ||
2021 | if (argc == 1) | |
2022 | level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV; | |
2023 | else if (! strncmp (argv[1], "s", 1)) | |
2024 | level = OSPF6_DEBUG_MESSAGE_SEND; | |
2025 | else if (! strncmp (argv[1], "r", 1)) | |
2026 | level = OSPF6_DEBUG_MESSAGE_RECV; | |
2027 | ||
2028 | if (type == OSPF6_MESSAGE_TYPE_ALL) | |
718e3744 | 2029 | { |
508e53e2 | 2030 | for (i = 0; i < 6; i++) |
2031 | OSPF6_DEBUG_MESSAGE_OFF (i, level); | |
718e3744 | 2032 | } |
2033 | else | |
508e53e2 | 2034 | OSPF6_DEBUG_MESSAGE_OFF (type, level); |
718e3744 | 2035 | |
508e53e2 | 2036 | return CMD_SUCCESS; |
718e3744 | 2037 | } |
2038 | ||
508e53e2 | 2039 | ALIAS (no_debug_ospf6_message, |
2040 | no_debug_ospf6_message_sendrecv_cmd, | |
049207c3 | 2041 | "no debug ospf6 message " |
2042 | "(unknown|hello|dbdesc|lsreq|lsupdate|lsack|all) (send|recv)", | |
508e53e2 | 2043 | NO_STR |
2044 | DEBUG_STR | |
2045 | OSPF6_STR | |
2046 | "Debug OSPFv3 message\n" | |
2047 | "Debug Unknown message\n" | |
2048 | "Debug Hello message\n" | |
2049 | "Debug Database Description message\n" | |
2050 | "Debug Link State Request message\n" | |
2051 | "Debug Link State Update message\n" | |
2052 | "Debug Link State Acknowledgement message\n" | |
2053 | "Debug All message\n" | |
2054 | "Debug only sending message\n" | |
2055 | "Debug only receiving message\n" | |
2056 | ); | |
2057 | ||
718e3744 | 2058 | int |
508e53e2 | 2059 | config_write_ospf6_debug_message (struct vty *vty) |
718e3744 | 2060 | { |
0c083ee9 | 2061 | const char *type_str[] = {"unknown", "hello", "dbdesc", |
508e53e2 | 2062 | "lsreq", "lsupdate", "lsack"}; |
2063 | unsigned char s = 0, r = 0; | |
2064 | int i; | |
718e3744 | 2065 | |
508e53e2 | 2066 | for (i = 0; i < 6; i++) |
2067 | { | |
2068 | if (IS_OSPF6_DEBUG_MESSAGE (i, SEND)) | |
2069 | s |= 1 << i; | |
2070 | if (IS_OSPF6_DEBUG_MESSAGE (i, RECV)) | |
2071 | r |= 1 << i; | |
2072 | } | |
718e3744 | 2073 | |
508e53e2 | 2074 | if (s == 0x3f && r == 0x3f) |
718e3744 | 2075 | { |
049207c3 | 2076 | vty_out (vty, "debug ospf6 message all%s", VNL); |
508e53e2 | 2077 | return 0; |
2078 | } | |
718e3744 | 2079 | |
508e53e2 | 2080 | if (s == 0x3f && r == 0) |
2081 | { | |
049207c3 | 2082 | vty_out (vty, "debug ospf6 message all send%s", VNL); |
508e53e2 | 2083 | return 0; |
2084 | } | |
2085 | else if (s == 0 && r == 0x3f) | |
2086 | { | |
049207c3 | 2087 | vty_out (vty, "debug ospf6 message all recv%s", VNL); |
508e53e2 | 2088 | return 0; |
718e3744 | 2089 | } |
2090 | ||
508e53e2 | 2091 | /* Unknown message is logged by default */ |
2092 | if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, SEND) && | |
2093 | ! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) | |
049207c3 | 2094 | vty_out (vty, "no debug ospf6 message unknown%s", VNL); |
508e53e2 | 2095 | else if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, SEND)) |
049207c3 | 2096 | vty_out (vty, "no debug ospf6 message unknown send%s", VNL); |
508e53e2 | 2097 | else if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) |
049207c3 | 2098 | vty_out (vty, "no debug ospf6 message unknown recv%s", VNL); |
718e3744 | 2099 | |
508e53e2 | 2100 | for (i = 1; i < 6; i++) |
718e3744 | 2101 | { |
508e53e2 | 2102 | if (IS_OSPF6_DEBUG_MESSAGE (i, SEND) && |
2103 | IS_OSPF6_DEBUG_MESSAGE (i, RECV)) | |
049207c3 | 2104 | vty_out (vty, "debug ospf6 message %s%s", type_str[i], VNL); |
508e53e2 | 2105 | else if (IS_OSPF6_DEBUG_MESSAGE (i, SEND)) |
2106 | vty_out (vty, "debug ospf6 message %s send%s", type_str[i], | |
049207c3 | 2107 | VNL); |
508e53e2 | 2108 | else if (IS_OSPF6_DEBUG_MESSAGE (i, RECV)) |
2109 | vty_out (vty, "debug ospf6 message %s recv%s", type_str[i], | |
049207c3 | 2110 | VNL); |
718e3744 | 2111 | } |
2112 | ||
718e3744 | 2113 | return 0; |
2114 | } | |
2115 | ||
508e53e2 | 2116 | void |
2117 | install_element_ospf6_debug_message () | |
2118 | { | |
2119 | install_element (ENABLE_NODE, &debug_ospf6_message_cmd); | |
2120 | install_element (ENABLE_NODE, &no_debug_ospf6_message_cmd); | |
2121 | install_element (ENABLE_NODE, &debug_ospf6_message_sendrecv_cmd); | |
2122 | install_element (ENABLE_NODE, &no_debug_ospf6_message_sendrecv_cmd); | |
2123 | install_element (CONFIG_NODE, &debug_ospf6_message_cmd); | |
2124 | install_element (CONFIG_NODE, &no_debug_ospf6_message_cmd); | |
2125 | install_element (CONFIG_NODE, &debug_ospf6_message_sendrecv_cmd); | |
2126 | install_element (CONFIG_NODE, &no_debug_ospf6_message_sendrecv_cmd); | |
2127 | } | |
2128 | ||
2129 |