2 * Copyright (C) 2003 Yasuhiro Ohara
4 * This file is part of GNU Zebra.
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
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.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "lib_errors.h"
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"
37 #include "ospf6_top.h"
38 #include "ospf6_area.h"
39 #include "ospf6_neighbor.h"
40 #include "ospf6_interface.h"
42 /* for structures and macros ospf6_lsa_examin() needs */
43 #include "ospf6_abr.h"
44 #include "ospf6_asbr.h"
45 #include "ospf6_intra.h"
47 #include "ospf6_flood.h"
50 #include <netinet/ip6.h>
52 unsigned char conf_debug_ospf6_message
[6] = {0x03, 0, 0, 0, 0, 0};
53 static const struct message ospf6_message_type_str
[] = {
54 {OSPF6_MESSAGE_TYPE_HELLO
, "Hello"},
55 {OSPF6_MESSAGE_TYPE_DBDESC
, "DbDesc"},
56 {OSPF6_MESSAGE_TYPE_LSREQ
, "LSReq"},
57 {OSPF6_MESSAGE_TYPE_LSUPDATE
, "LSUpdate"},
58 {OSPF6_MESSAGE_TYPE_LSACK
, "LSAck"},
61 /* Minimum (besides the standard OSPF packet header) lengths for OSPF
62 packets of particular types, offset is the "type" field. */
63 const uint16_t ospf6_packet_minlen
[OSPF6_MESSAGE_TYPE_ALL
] = {
66 OSPF6_DB_DESC_MIN_SIZE
,
67 OSPF6_LS_REQ_MIN_SIZE
,
68 OSPF6_LS_UPD_MIN_SIZE
,
69 OSPF6_LS_ACK_MIN_SIZE
};
71 /* Minimum (besides the standard LSA header) lengths for LSAs of particular
72 types, offset is the "LSA function code" portion of "LSA type" field. */
73 const uint16_t ospf6_lsa_minlen
[OSPF6_LSTYPE_SIZE
] = {
75 /* 0x2001 */ OSPF6_ROUTER_LSA_MIN_SIZE
,
76 /* 0x2002 */ OSPF6_NETWORK_LSA_MIN_SIZE
,
77 /* 0x2003 */ OSPF6_INTER_PREFIX_LSA_MIN_SIZE
,
78 /* 0x2004 */ OSPF6_INTER_ROUTER_LSA_FIX_SIZE
,
79 /* 0x4005 */ OSPF6_AS_EXTERNAL_LSA_MIN_SIZE
,
81 /* 0x2007 */ OSPF6_AS_EXTERNAL_LSA_MIN_SIZE
,
82 /* 0x0008 */ OSPF6_LINK_LSA_MIN_SIZE
,
83 /* 0x2009 */ OSPF6_INTRA_PREFIX_LSA_MIN_SIZE
};
87 static void ospf6_header_print(struct ospf6_header
*oh
)
89 char router_id
[16], area_id
[16];
90 inet_ntop(AF_INET
, &oh
->router_id
, router_id
, sizeof(router_id
));
91 inet_ntop(AF_INET
, &oh
->area_id
, area_id
, sizeof(area_id
));
93 zlog_debug(" OSPFv%d Type:%d Len:%hu Router-ID:%s", oh
->version
,
94 oh
->type
, ntohs(oh
->length
), router_id
);
95 zlog_debug(" Area-ID:%s Cksum:%hx Instance-ID:%d", area_id
,
96 ntohs(oh
->checksum
), oh
->instance_id
);
99 void ospf6_hello_print(struct ospf6_header
*oh
)
101 struct ospf6_hello
*hello
;
103 char drouter
[16], bdrouter
[16], neighbor
[16];
106 ospf6_header_print(oh
);
107 assert(oh
->type
== OSPF6_MESSAGE_TYPE_HELLO
);
109 hello
= (struct ospf6_hello
*)((caddr_t
)oh
110 + sizeof(struct ospf6_header
));
112 inet_ntop(AF_INET
, &hello
->drouter
, drouter
, sizeof(drouter
));
113 inet_ntop(AF_INET
, &hello
->bdrouter
, bdrouter
, sizeof(bdrouter
));
114 ospf6_options_printbuf(hello
->options
, options
, sizeof(options
));
116 zlog_debug(" I/F-Id:%ld Priority:%d Option:%s",
117 (unsigned long)ntohl(hello
->interface_id
), hello
->priority
,
119 zlog_debug(" HelloInterval:%hu DeadInterval:%hu",
120 ntohs(hello
->hello_interval
), ntohs(hello
->dead_interval
));
121 zlog_debug(" DR:%s BDR:%s", drouter
, bdrouter
);
123 for (p
= (char *)((caddr_t
)hello
+ sizeof(struct ospf6_hello
));
124 p
+ sizeof(uint32_t) <= OSPF6_MESSAGE_END(oh
);
125 p
+= sizeof(uint32_t)) {
126 inet_ntop(AF_INET
, (void *)p
, neighbor
, sizeof(neighbor
));
127 zlog_debug(" Neighbor: %s", neighbor
);
130 assert(p
== OSPF6_MESSAGE_END(oh
));
133 void ospf6_dbdesc_print(struct ospf6_header
*oh
)
135 struct ospf6_dbdesc
*dbdesc
;
139 ospf6_header_print(oh
);
140 assert(oh
->type
== OSPF6_MESSAGE_TYPE_DBDESC
);
142 dbdesc
= (struct ospf6_dbdesc
*)((caddr_t
)oh
143 + sizeof(struct ospf6_header
));
145 ospf6_options_printbuf(dbdesc
->options
, options
, sizeof(options
));
147 zlog_debug(" MBZ: %#x Option: %s IfMTU: %hu", dbdesc
->reserved1
,
148 options
, ntohs(dbdesc
->ifmtu
));
149 zlog_debug(" MBZ: %#x Bits: %s%s%s SeqNum: %#lx", dbdesc
->reserved2
,
150 (CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_IBIT
) ? "I" : "-"),
151 (CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_MBIT
) ? "M" : "-"),
152 (CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_MSBIT
) ? "m" : "s"),
153 (unsigned long)ntohl(dbdesc
->seqnum
));
155 for (p
= (char *)((caddr_t
)dbdesc
+ sizeof(struct ospf6_dbdesc
));
156 p
+ sizeof(struct ospf6_lsa_header
) <= OSPF6_MESSAGE_END(oh
);
157 p
+= sizeof(struct ospf6_lsa_header
))
158 ospf6_lsa_header_print_raw((struct ospf6_lsa_header
*)p
);
160 assert(p
== OSPF6_MESSAGE_END(oh
));
163 void ospf6_lsreq_print(struct ospf6_header
*oh
)
165 char id
[16], adv_router
[16];
168 ospf6_header_print(oh
);
169 assert(oh
->type
== OSPF6_MESSAGE_TYPE_LSREQ
);
171 for (p
= (char *)((caddr_t
)oh
+ sizeof(struct ospf6_header
));
172 p
+ sizeof(struct ospf6_lsreq_entry
) <= OSPF6_MESSAGE_END(oh
);
173 p
+= sizeof(struct ospf6_lsreq_entry
)) {
174 struct ospf6_lsreq_entry
*e
= (struct ospf6_lsreq_entry
*)p
;
175 inet_ntop(AF_INET
, &e
->adv_router
, adv_router
,
177 inet_ntop(AF_INET
, &e
->id
, id
, sizeof(id
));
178 zlog_debug(" [%s Id:%s Adv:%s]", ospf6_lstype_name(e
->type
),
182 assert(p
== OSPF6_MESSAGE_END(oh
));
185 void ospf6_lsupdate_print(struct ospf6_header
*oh
)
187 struct ospf6_lsupdate
*lsupdate
;
191 ospf6_header_print(oh
);
192 assert(oh
->type
== OSPF6_MESSAGE_TYPE_LSUPDATE
);
194 lsupdate
= (struct ospf6_lsupdate
*)((caddr_t
)oh
195 + sizeof(struct ospf6_header
));
197 num
= ntohl(lsupdate
->lsa_number
);
198 zlog_debug(" Number of LSA: %ld", num
);
200 for (p
= (char *)((caddr_t
)lsupdate
+ sizeof(struct ospf6_lsupdate
));
201 p
< OSPF6_MESSAGE_END(oh
)
202 && p
+ OSPF6_LSA_SIZE(p
) <= OSPF6_MESSAGE_END(oh
);
203 p
+= OSPF6_LSA_SIZE(p
)) {
204 ospf6_lsa_header_print_raw((struct ospf6_lsa_header
*)p
);
207 assert(p
== OSPF6_MESSAGE_END(oh
));
210 void ospf6_lsack_print(struct ospf6_header
*oh
)
214 ospf6_header_print(oh
);
215 assert(oh
->type
== OSPF6_MESSAGE_TYPE_LSACK
);
217 for (p
= (char *)((caddr_t
)oh
+ sizeof(struct ospf6_header
));
218 p
+ sizeof(struct ospf6_lsa_header
) <= OSPF6_MESSAGE_END(oh
);
219 p
+= sizeof(struct ospf6_lsa_header
))
220 ospf6_lsa_header_print_raw((struct ospf6_lsa_header
*)p
);
222 assert(p
== OSPF6_MESSAGE_END(oh
));
225 static void ospf6_hello_recv(struct in6_addr
*src
, struct in6_addr
*dst
,
226 struct ospf6_interface
*oi
,
227 struct ospf6_header
*oh
)
229 struct ospf6_hello
*hello
;
230 struct ospf6_neighbor
*on
;
233 int neighborchange
= 0;
234 int neighbor_ifindex_change
= 0;
237 hello
= (struct ospf6_hello
*)((caddr_t
)oh
238 + sizeof(struct ospf6_header
));
240 /* HelloInterval check */
241 if (ntohs(hello
->hello_interval
) != oi
->hello_interval
) {
242 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
243 zlog_debug("HelloInterval mismatch");
247 /* RouterDeadInterval check */
248 if (ntohs(hello
->dead_interval
) != oi
->dead_interval
) {
249 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
250 zlog_debug("RouterDeadInterval mismatch");
255 if (OSPF6_OPT_ISSET(hello
->options
, OSPF6_OPT_E
)
256 != OSPF6_OPT_ISSET(oi
->area
->options
, OSPF6_OPT_E
)) {
257 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
258 zlog_debug("E-bit mismatch");
262 /* Find neighbor, create if not exist */
263 on
= ospf6_neighbor_lookup(oh
->router_id
, oi
);
265 on
= ospf6_neighbor_create(oh
->router_id
, oi
);
266 on
->prev_drouter
= on
->drouter
= hello
->drouter
;
267 on
->prev_bdrouter
= on
->bdrouter
= hello
->bdrouter
;
268 on
->priority
= hello
->priority
;
271 /* Always override neighbor's source address */
272 memcpy(&on
->linklocal_addr
, src
, sizeof(struct in6_addr
));
274 /* Neighbor ifindex check */
275 if (on
->ifindex
!= (ifindex_t
)ntohl(hello
->interface_id
)) {
276 on
->ifindex
= ntohl(hello
->interface_id
);
277 neighbor_ifindex_change
++;
281 for (p
= (char *)((caddr_t
)hello
+ sizeof(struct ospf6_hello
));
282 p
+ sizeof(uint32_t) <= OSPF6_MESSAGE_END(oh
);
283 p
+= sizeof(uint32_t)) {
284 uint32_t *router_id
= (uint32_t *)p
;
286 if (*router_id
== oi
->area
->ospf6
->router_id
)
290 assert(p
== OSPF6_MESSAGE_END(oh
));
292 /* RouterPriority check */
293 if (on
->priority
!= hello
->priority
) {
294 on
->priority
= hello
->priority
;
299 if (on
->drouter
!= hello
->drouter
) {
300 on
->prev_drouter
= on
->drouter
;
301 on
->drouter
= hello
->drouter
;
302 if (on
->prev_drouter
== on
->router_id
303 || on
->drouter
== on
->router_id
)
308 if (on
->bdrouter
!= hello
->bdrouter
) {
309 on
->prev_bdrouter
= on
->bdrouter
;
310 on
->bdrouter
= hello
->bdrouter
;
311 if (on
->prev_bdrouter
== on
->router_id
312 || on
->bdrouter
== on
->router_id
)
316 /* BackupSeen check */
317 if (oi
->state
== OSPF6_INTERFACE_WAITING
) {
318 if (hello
->bdrouter
== on
->router_id
)
320 else if (hello
->drouter
== on
->router_id
321 && hello
->bdrouter
== htonl(0))
327 /* Execute neighbor events */
328 thread_execute(master
, hello_received
, on
, 0);
330 thread_execute(master
, twoway_received
, on
, 0);
332 thread_execute(master
, oneway_received
, on
, 0);
334 /* Schedule interface events */
336 thread_add_event(master
, backup_seen
, oi
, 0, NULL
);
338 thread_add_event(master
, neighbor_change
, oi
, 0, NULL
);
340 if (neighbor_ifindex_change
&& on
->state
== OSPF6_NEIGHBOR_FULL
)
341 OSPF6_ROUTER_LSA_SCHEDULE(oi
->area
);
344 static void ospf6_dbdesc_recv_master(struct ospf6_header
*oh
,
345 struct ospf6_neighbor
*on
)
347 struct ospf6_dbdesc
*dbdesc
;
350 dbdesc
= (struct ospf6_dbdesc
*)((caddr_t
)oh
351 + sizeof(struct ospf6_header
));
353 if (on
->state
< OSPF6_NEIGHBOR_INIT
) {
354 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
355 zlog_debug("Neighbor state less than Init, ignore");
360 case OSPF6_NEIGHBOR_TWOWAY
:
361 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
362 zlog_debug("Neighbor state is 2-Way, ignore");
365 case OSPF6_NEIGHBOR_INIT
:
366 thread_execute(master
, twoway_received
, on
, 0);
367 if (on
->state
!= OSPF6_NEIGHBOR_EXSTART
) {
368 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
370 "Neighbor state is not ExStart, ignore");
373 /* else fall through to ExStart */
375 case OSPF6_NEIGHBOR_EXSTART
:
376 /* if neighbor obeys us as our slave, schedule negotiation_done
377 and process LSA Headers. Otherwise, ignore this message */
378 if (!CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_MSBIT
)
379 && !CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_IBIT
)
380 && ntohl(dbdesc
->seqnum
) == on
->dbdesc_seqnum
) {
381 /* execute NegotiationDone */
382 thread_execute(master
, negotiation_done
, on
, 0);
384 /* Record neighbor options */
385 memcpy(on
->options
, dbdesc
->options
,
386 sizeof(on
->options
));
388 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
389 zlog_debug("Negotiation failed");
392 /* fall through to exchange */
394 case OSPF6_NEIGHBOR_EXCHANGE
:
395 if (!memcmp(dbdesc
, &on
->dbdesc_last
,
396 sizeof(struct ospf6_dbdesc
))) {
397 /* Duplicated DatabaseDescription is dropped by master
399 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
401 "Duplicated dbdesc discarded by Master, ignore");
405 if (CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_MSBIT
)) {
406 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
407 zlog_debug("Master/Slave bit mismatch");
408 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
413 if (CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_IBIT
)) {
414 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
415 zlog_debug("Initialize bit mismatch");
416 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
421 if (memcmp(on
->options
, dbdesc
->options
, sizeof(on
->options
))) {
422 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
423 zlog_debug("Option field mismatch");
424 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
429 if (ntohl(dbdesc
->seqnum
) != on
->dbdesc_seqnum
) {
430 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
432 "Sequence number mismatch (%#lx expected)",
433 (unsigned long)on
->dbdesc_seqnum
);
434 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
440 case OSPF6_NEIGHBOR_LOADING
:
441 case OSPF6_NEIGHBOR_FULL
:
442 if (!memcmp(dbdesc
, &on
->dbdesc_last
,
443 sizeof(struct ospf6_dbdesc
))) {
444 /* Duplicated DatabaseDescription is dropped by master
446 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
448 "Duplicated dbdesc discarded by Master, ignore");
452 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
453 zlog_debug("Not duplicate dbdesc in state %s",
454 ospf6_neighbor_state_str
[on
->state
]);
455 thread_add_event(master
, seqnumber_mismatch
, on
, 0, NULL
);
463 /* Process LSA headers */
464 for (p
= (char *)((caddr_t
)dbdesc
+ sizeof(struct ospf6_dbdesc
));
465 p
+ sizeof(struct ospf6_lsa_header
) <= OSPF6_MESSAGE_END(oh
);
466 p
+= sizeof(struct ospf6_lsa_header
)) {
467 struct ospf6_lsa
*his
, *mine
;
468 struct ospf6_lsdb
*lsdb
= NULL
;
470 his
= ospf6_lsa_create_headeronly((struct ospf6_lsa_header
*)p
);
472 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
473 zlog_debug("%s", his
->name
);
475 switch (OSPF6_LSA_SCOPE(his
->header
->type
)) {
476 case OSPF6_SCOPE_LINKLOCAL
:
477 lsdb
= on
->ospf6_if
->lsdb
;
479 case OSPF6_SCOPE_AREA
:
480 lsdb
= on
->ospf6_if
->area
->lsdb
;
483 lsdb
= on
->ospf6_if
->area
->ospf6
->lsdb
;
485 case OSPF6_SCOPE_RESERVED
:
486 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
487 zlog_debug("Ignoring LSA of reserved scope");
488 ospf6_lsa_delete(his
);
493 if (ntohs(his
->header
->type
) == OSPF6_LSTYPE_AS_EXTERNAL
494 && IS_AREA_STUB(on
->ospf6_if
->area
)) {
495 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
497 "SeqNumMismatch (E-bit mismatch), discard");
498 ospf6_lsa_delete(his
);
499 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
504 mine
= ospf6_lsdb_lookup(his
->header
->type
, his
->header
->id
,
505 his
->header
->adv_router
, lsdb
);
507 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
508 zlog_debug("Add request (No database copy)");
509 ospf6_lsdb_add(ospf6_lsa_copy(his
), on
->request_list
);
510 } else if (ospf6_lsa_compare(his
, mine
) < 0) {
511 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
512 zlog_debug("Add request (Received MoreRecent)");
513 ospf6_lsdb_add(ospf6_lsa_copy(his
), on
->request_list
);
515 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
516 zlog_debug("Discard (Existing MoreRecent)");
518 ospf6_lsa_delete(his
);
521 assert(p
== OSPF6_MESSAGE_END(oh
));
523 /* Increment sequence number */
526 /* schedule send lsreq */
527 if (on
->request_list
->count
)
528 thread_add_event(master
, ospf6_lsreq_send
, on
, 0,
529 &on
->thread_send_lsreq
);
531 THREAD_OFF(on
->thread_send_dbdesc
);
534 if (!CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_MBIT
)
535 && !CHECK_FLAG(on
->dbdesc_bits
, OSPF6_DBDESC_MBIT
))
536 thread_add_event(master
, exchange_done
, on
, 0, NULL
);
538 on
->thread_send_dbdesc
= NULL
;
539 thread_add_event(master
, ospf6_dbdesc_send_newone
, on
, 0,
540 &on
->thread_send_dbdesc
);
543 /* save last received dbdesc */
544 memcpy(&on
->dbdesc_last
, dbdesc
, sizeof(struct ospf6_dbdesc
));
547 static void ospf6_dbdesc_recv_slave(struct ospf6_header
*oh
,
548 struct ospf6_neighbor
*on
)
550 struct ospf6_dbdesc
*dbdesc
;
553 dbdesc
= (struct ospf6_dbdesc
*)((caddr_t
)oh
554 + sizeof(struct ospf6_header
));
556 if (on
->state
< OSPF6_NEIGHBOR_INIT
) {
557 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
558 zlog_debug("Neighbor state less than Init, ignore");
563 case OSPF6_NEIGHBOR_TWOWAY
:
564 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
565 zlog_debug("Neighbor state is 2-Way, ignore");
568 case OSPF6_NEIGHBOR_INIT
:
569 thread_execute(master
, twoway_received
, on
, 0);
570 if (on
->state
!= OSPF6_NEIGHBOR_EXSTART
) {
571 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
573 "Neighbor state is not ExStart, ignore");
576 /* else fall through to ExStart */
578 case OSPF6_NEIGHBOR_EXSTART
:
579 /* If the neighbor is Master, act as Slave. Schedule
581 and process LSA Headers. Otherwise, ignore this message */
582 if (CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_IBIT
)
583 && CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_MBIT
)
584 && CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_MSBIT
)
586 == sizeof(struct ospf6_header
)
587 + sizeof(struct ospf6_dbdesc
)) {
588 /* set the master/slave bit to slave */
589 UNSET_FLAG(on
->dbdesc_bits
, OSPF6_DBDESC_MSBIT
);
591 /* set the DD sequence number to one specified by master
593 on
->dbdesc_seqnum
= ntohl(dbdesc
->seqnum
);
595 /* schedule NegotiationDone */
596 thread_execute(master
, negotiation_done
, on
, 0);
598 /* Record neighbor options */
599 memcpy(on
->options
, dbdesc
->options
,
600 sizeof(on
->options
));
602 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
603 zlog_debug("Negotiation failed");
608 case OSPF6_NEIGHBOR_EXCHANGE
:
609 if (!memcmp(dbdesc
, &on
->dbdesc_last
,
610 sizeof(struct ospf6_dbdesc
))) {
611 /* Duplicated DatabaseDescription causes slave to
613 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
615 "Duplicated dbdesc causes retransmit");
616 THREAD_OFF(on
->thread_send_dbdesc
);
617 on
->thread_send_dbdesc
= NULL
;
618 thread_add_event(master
, ospf6_dbdesc_send
, on
, 0,
619 &on
->thread_send_dbdesc
);
623 if (!CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_MSBIT
)) {
624 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
625 zlog_debug("Master/Slave bit mismatch");
626 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
631 if (CHECK_FLAG(dbdesc
->bits
, OSPF6_DBDESC_IBIT
)) {
632 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
633 zlog_debug("Initialize bit mismatch");
634 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
639 if (memcmp(on
->options
, dbdesc
->options
, sizeof(on
->options
))) {
640 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
641 zlog_debug("Option field mismatch");
642 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
647 if (ntohl(dbdesc
->seqnum
) != on
->dbdesc_seqnum
+ 1) {
648 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
650 "Sequence number mismatch (%#lx expected)",
651 (unsigned long)on
->dbdesc_seqnum
+ 1);
652 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
658 case OSPF6_NEIGHBOR_LOADING
:
659 case OSPF6_NEIGHBOR_FULL
:
660 if (!memcmp(dbdesc
, &on
->dbdesc_last
,
661 sizeof(struct ospf6_dbdesc
))) {
662 /* Duplicated DatabaseDescription causes slave to
664 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
666 "Duplicated dbdesc causes retransmit");
667 THREAD_OFF(on
->thread_send_dbdesc
);
668 thread_add_event(master
, ospf6_dbdesc_send
, on
, 0,
669 &on
->thread_send_dbdesc
);
673 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
674 zlog_debug("Not duplicate dbdesc in state %s",
675 ospf6_neighbor_state_str
[on
->state
]);
676 thread_add_event(master
, seqnumber_mismatch
, on
, 0, NULL
);
684 /* Process LSA headers */
685 for (p
= (char *)((caddr_t
)dbdesc
+ sizeof(struct ospf6_dbdesc
));
686 p
+ sizeof(struct ospf6_lsa_header
) <= OSPF6_MESSAGE_END(oh
);
687 p
+= sizeof(struct ospf6_lsa_header
)) {
688 struct ospf6_lsa
*his
, *mine
;
689 struct ospf6_lsdb
*lsdb
= NULL
;
691 his
= ospf6_lsa_create_headeronly((struct ospf6_lsa_header
*)p
);
693 switch (OSPF6_LSA_SCOPE(his
->header
->type
)) {
694 case OSPF6_SCOPE_LINKLOCAL
:
695 lsdb
= on
->ospf6_if
->lsdb
;
697 case OSPF6_SCOPE_AREA
:
698 lsdb
= on
->ospf6_if
->area
->lsdb
;
701 lsdb
= on
->ospf6_if
->area
->ospf6
->lsdb
;
703 case OSPF6_SCOPE_RESERVED
:
704 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
705 zlog_debug("Ignoring LSA of reserved scope");
706 ospf6_lsa_delete(his
);
711 if (OSPF6_LSA_SCOPE(his
->header
->type
) == OSPF6_SCOPE_AS
712 && IS_AREA_STUB(on
->ospf6_if
->area
)) {
713 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
714 zlog_debug("E-bit mismatch with LSA Headers");
715 ospf6_lsa_delete(his
);
716 thread_add_event(master
, seqnumber_mismatch
, on
, 0,
721 mine
= ospf6_lsdb_lookup(his
->header
->type
, his
->header
->id
,
722 his
->header
->adv_router
, lsdb
);
723 if (mine
== NULL
|| ospf6_lsa_compare(his
, mine
) < 0) {
724 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
725 zlog_debug("Add request-list: %s", his
->name
);
726 ospf6_lsdb_add(ospf6_lsa_copy(his
), on
->request_list
);
728 ospf6_lsa_delete(his
);
731 assert(p
== OSPF6_MESSAGE_END(oh
));
733 /* Set sequence number to Master's */
734 on
->dbdesc_seqnum
= ntohl(dbdesc
->seqnum
);
736 /* schedule send lsreq */
737 if (on
->request_list
->count
)
738 thread_add_event(master
, ospf6_lsreq_send
, on
, 0,
739 &on
->thread_send_lsreq
);
741 THREAD_OFF(on
->thread_send_dbdesc
);
742 thread_add_event(master
, ospf6_dbdesc_send_newone
, on
, 0,
743 &on
->thread_send_dbdesc
);
745 /* save last received dbdesc */
746 memcpy(&on
->dbdesc_last
, dbdesc
, sizeof(struct ospf6_dbdesc
));
749 static void ospf6_dbdesc_recv(struct in6_addr
*src
, struct in6_addr
*dst
,
750 struct ospf6_interface
*oi
,
751 struct ospf6_header
*oh
)
753 struct ospf6_neighbor
*on
;
754 struct ospf6_dbdesc
*dbdesc
;
756 on
= ospf6_neighbor_lookup(oh
->router_id
, oi
);
758 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
759 zlog_debug("Neighbor not found, ignore");
763 dbdesc
= (struct ospf6_dbdesc
*)((caddr_t
)oh
764 + sizeof(struct ospf6_header
));
766 /* Interface MTU check */
767 if (!oi
->mtu_ignore
&& ntohs(dbdesc
->ifmtu
) != oi
->ifmtu
) {
768 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
769 zlog_debug("I/F MTU mismatch");
773 if (dbdesc
->reserved1
|| dbdesc
->reserved2
) {
774 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
776 "Non-0 reserved field in %s's DbDesc, correct",
778 dbdesc
->reserved1
= 0;
779 dbdesc
->reserved2
= 0;
784 if (ntohl(oh
->router_id
) < ntohl(ospf6
->router_id
))
785 ospf6_dbdesc_recv_master(oh
, on
);
786 else if (ntohl(ospf6
->router_id
) < ntohl(oh
->router_id
))
787 ospf6_dbdesc_recv_slave(oh
, on
);
789 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
790 zlog_debug("Can't decide which is master, ignore");
794 static void ospf6_lsreq_recv(struct in6_addr
*src
, struct in6_addr
*dst
,
795 struct ospf6_interface
*oi
,
796 struct ospf6_header
*oh
)
798 struct ospf6_neighbor
*on
;
800 struct ospf6_lsreq_entry
*e
;
801 struct ospf6_lsdb
*lsdb
= NULL
;
802 struct ospf6_lsa
*lsa
;
804 on
= ospf6_neighbor_lookup(oh
->router_id
, oi
);
806 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
807 zlog_debug("Neighbor not found, ignore");
811 if (on
->state
!= OSPF6_NEIGHBOR_EXCHANGE
812 && on
->state
!= OSPF6_NEIGHBOR_LOADING
813 && on
->state
!= OSPF6_NEIGHBOR_FULL
) {
814 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
815 zlog_debug("Neighbor state less than Exchange, ignore");
821 /* Process each request */
822 for (p
= (char *)((caddr_t
)oh
+ sizeof(struct ospf6_header
));
823 p
+ sizeof(struct ospf6_lsreq_entry
) <= OSPF6_MESSAGE_END(oh
);
824 p
+= sizeof(struct ospf6_lsreq_entry
)) {
825 e
= (struct ospf6_lsreq_entry
*)p
;
827 switch (OSPF6_LSA_SCOPE(e
->type
)) {
828 case OSPF6_SCOPE_LINKLOCAL
:
829 lsdb
= on
->ospf6_if
->lsdb
;
831 case OSPF6_SCOPE_AREA
:
832 lsdb
= on
->ospf6_if
->area
->lsdb
;
835 lsdb
= on
->ospf6_if
->area
->ospf6
->lsdb
;
838 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
839 zlog_debug("Ignoring LSA of reserved scope");
844 /* Find database copy */
845 lsa
= ospf6_lsdb_lookup(e
->type
, e
->id
, e
->adv_router
, lsdb
);
847 char id
[16], adv_router
[16];
848 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
)) {
849 inet_ntop(AF_INET
, &e
->id
, id
, sizeof(id
));
850 inet_ntop(AF_INET
, &e
->adv_router
, adv_router
,
853 "Can't find requested [%s Id:%s Adv:%s]",
854 ospf6_lstype_name(e
->type
), id
,
857 thread_add_event(master
, bad_lsreq
, on
, 0, NULL
);
861 ospf6_lsdb_add(ospf6_lsa_copy(lsa
), on
->lsupdate_list
);
864 assert(p
== OSPF6_MESSAGE_END(oh
));
866 /* schedule send lsupdate */
867 THREAD_OFF(on
->thread_send_lsupdate
);
868 thread_add_event(master
, ospf6_lsupdate_send_neighbor
, on
, 0,
869 &on
->thread_send_lsupdate
);
872 /* Verify, that the specified memory area contains exactly N valid IPv6
873 prefixes as specified by RFC5340, A.4.1. */
874 static unsigned ospf6_prefixes_examin(
875 struct ospf6_prefix
*current
, /* start of buffer */
877 const uint32_t req_num_pfxs
/* always compared with the actual number
881 uint8_t requested_pfx_bytes
;
882 uint32_t real_num_pfxs
= 0;
885 if (length
< OSPF6_PREFIX_MIN_SIZE
) {
886 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
888 zlog_debug("%s: undersized IPv6 prefix header",
892 /* safe to look deeper */
893 if (current
->prefix_length
> IPV6_MAX_BITLEN
) {
894 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
896 zlog_debug("%s: invalid PrefixLength (%u bits)",
897 __func__
, current
->prefix_length
);
900 /* covers both fixed- and variable-sized fields */
901 requested_pfx_bytes
=
902 OSPF6_PREFIX_MIN_SIZE
903 + OSPF6_PREFIX_SPACE(current
->prefix_length
);
904 if (requested_pfx_bytes
> length
) {
905 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
907 zlog_debug("%s: undersized IPv6 prefix",
912 length
-= requested_pfx_bytes
;
913 current
= (struct ospf6_prefix
*)((caddr_t
)current
914 + requested_pfx_bytes
);
917 if (real_num_pfxs
!= req_num_pfxs
) {
918 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
920 "%s: IPv6 prefix number mismatch (%u required, %u real)",
921 __func__
, req_num_pfxs
, real_num_pfxs
);
927 /* Verify an LSA to have a valid length and dispatch further (where
928 appropriate) to check if the contents, including nested IPv6 prefixes,
929 is properly sized/aligned within the LSA. Note that this function gets
930 LSA type in network byte order, uses in host byte order and passes to
931 ospf6_lstype_name() in network byte order again. */
932 static unsigned ospf6_lsa_examin(struct ospf6_lsa_header
*lsah
,
933 const uint16_t lsalen
,
934 const uint8_t headeronly
)
936 struct ospf6_intra_prefix_lsa
*intra_prefix_lsa
;
937 struct ospf6_as_external_lsa
*as_external_lsa
;
938 struct ospf6_link_lsa
*link_lsa
;
943 /* In case an additional minimum length constraint is defined for
945 LSA type, make sure that this constraint is met. */
946 lsatype
= ntohs(lsah
->type
);
947 ltindex
= lsatype
& OSPF6_LSTYPE_FCODE_MASK
;
948 if (ltindex
< OSPF6_LSTYPE_SIZE
&& ospf6_lsa_minlen
[ltindex
]
949 && lsalen
< ospf6_lsa_minlen
[ltindex
] + OSPF6_LSA_HEADER_SIZE
) {
950 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
951 zlog_debug("%s: undersized (%u B) LSA", __func__
,
956 case OSPF6_LSTYPE_ROUTER
:
957 /* RFC5340 A.4.3, LSA header + OSPF6_ROUTER_LSA_MIN_SIZE bytes
959 by N>=0 interface descriptions. */
960 if ((lsalen
- OSPF6_LSA_HEADER_SIZE
- OSPF6_ROUTER_LSA_MIN_SIZE
)
961 % OSPF6_ROUTER_LSDESC_FIX_SIZE
) {
962 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
965 "%s: interface description alignment error",
970 case OSPF6_LSTYPE_NETWORK
:
971 /* RFC5340 A.4.4, LSA header + OSPF6_NETWORK_LSA_MIN_SIZE bytes
972 followed by N>=0 attached router descriptions. */
973 if ((lsalen
- OSPF6_LSA_HEADER_SIZE
974 - OSPF6_NETWORK_LSA_MIN_SIZE
)
975 % OSPF6_NETWORK_LSDESC_FIX_SIZE
) {
976 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
979 "%s: router description alignment error",
984 case OSPF6_LSTYPE_INTER_PREFIX
:
985 /* RFC5340 A.4.5, LSA header + OSPF6_INTER_PREFIX_LSA_MIN_SIZE
987 followed by 3-4 fields of a single IPv6 prefix. */
990 return ospf6_prefixes_examin(
992 *)((caddr_t
)lsah
+ OSPF6_LSA_HEADER_SIZE
993 + OSPF6_INTER_PREFIX_LSA_MIN_SIZE
),
994 lsalen
- OSPF6_LSA_HEADER_SIZE
995 - OSPF6_INTER_PREFIX_LSA_MIN_SIZE
,
997 case OSPF6_LSTYPE_INTER_ROUTER
:
998 /* RFC5340 A.4.6, fixed-size LSA. */
1000 > OSPF6_LSA_HEADER_SIZE
+ OSPF6_INTER_ROUTER_LSA_FIX_SIZE
) {
1001 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
1003 zlog_debug("%s: oversized (%u B) LSA", __func__
,
1008 case OSPF6_LSTYPE_AS_EXTERNAL
: /* RFC5340 A.4.7, same as A.4.8. */
1009 case OSPF6_LSTYPE_TYPE_7
:
1010 /* RFC5340 A.4.8, LSA header + OSPF6_AS_EXTERNAL_LSA_MIN_SIZE
1012 followed by 3-4 fields of IPv6 prefix and 3 conditional LSA
1014 16 bytes of forwarding address, 4 bytes of external route
1016 4 bytes of referenced link state ID. */
1020 (struct ospf6_as_external_lsa
1021 *)((caddr_t
)lsah
+ OSPF6_LSA_HEADER_SIZE
);
1023 OSPF6_LSA_HEADER_SIZE
+ OSPF6_AS_EXTERNAL_LSA_MIN_SIZE
;
1024 /* To find out if the last optional field (Referenced Link State
1026 assumed in this LSA, we need to access fixed fields of the
1028 prefix before ospf6_prefix_examin() confirms its sizing. */
1029 if (exp_length
+ OSPF6_PREFIX_MIN_SIZE
> lsalen
) {
1030 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
1032 zlog_debug("%s: undersized (%u B) LSA header",
1036 /* forwarding address */
1037 if (CHECK_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_F
))
1039 /* external route tag */
1040 if (CHECK_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_T
))
1042 /* referenced link state ID */
1043 if (as_external_lsa
->prefix
.u
._prefix_referenced_lstype
)
1045 /* All the fixed-size fields (mandatory and optional) must fit.
1047 this check does not include any IPv6 prefix fields. */
1048 if (exp_length
> lsalen
) {
1049 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
1051 zlog_debug("%s: undersized (%u B) LSA header",
1055 /* The last call completely covers the remainder (IPv6 prefix).
1057 return ospf6_prefixes_examin(
1058 (struct ospf6_prefix
1059 *)((caddr_t
)as_external_lsa
1060 + OSPF6_AS_EXTERNAL_LSA_MIN_SIZE
),
1061 lsalen
- exp_length
, 1);
1062 case OSPF6_LSTYPE_LINK
:
1063 /* RFC5340 A.4.9, LSA header + OSPF6_LINK_LSA_MIN_SIZE bytes
1065 by N>=0 IPv6 prefix blocks (with N declared beforehand). */
1068 link_lsa
= (struct ospf6_link_lsa
*)((caddr_t
)lsah
1069 + OSPF6_LSA_HEADER_SIZE
);
1070 return ospf6_prefixes_examin(
1071 (struct ospf6_prefix
*)((caddr_t
)link_lsa
1072 + OSPF6_LINK_LSA_MIN_SIZE
),
1073 lsalen
- OSPF6_LSA_HEADER_SIZE
1074 - OSPF6_LINK_LSA_MIN_SIZE
,
1075 ntohl(link_lsa
->prefix_num
) /* 32 bits */
1077 case OSPF6_LSTYPE_INTRA_PREFIX
:
1078 /* RFC5340 A.4.10, LSA header + OSPF6_INTRA_PREFIX_LSA_MIN_SIZE
1080 followed by N>=0 IPv6 prefixes (with N declared beforehand).
1085 (struct ospf6_intra_prefix_lsa
1086 *)((caddr_t
)lsah
+ OSPF6_LSA_HEADER_SIZE
);
1087 return ospf6_prefixes_examin(
1088 (struct ospf6_prefix
1089 *)((caddr_t
)intra_prefix_lsa
1090 + OSPF6_INTRA_PREFIX_LSA_MIN_SIZE
),
1091 lsalen
- OSPF6_LSA_HEADER_SIZE
1092 - OSPF6_INTRA_PREFIX_LSA_MIN_SIZE
,
1093 ntohs(intra_prefix_lsa
->prefix_num
) /* 16 bits */
1096 /* No additional validation is possible for unknown LSA types, which are
1097 themselves valid in OPSFv3, hence the default decision is to accept.
1102 /* Verify if the provided input buffer is a valid sequence of LSAs. This
1103 includes verification of LSA blocks length/alignment and dispatching
1104 of deeper-level checks. */
1106 ospf6_lsaseq_examin(struct ospf6_lsa_header
*lsah
, /* start of buffered data */
1107 size_t length
, const uint8_t headeronly
,
1108 /* When declared_num_lsas is not 0, compare it to the real
1110 and treat the difference as an error. */
1111 const uint32_t declared_num_lsas
)
1113 uint32_t counted_lsas
= 0;
1117 if (length
< OSPF6_LSA_HEADER_SIZE
) {
1118 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
1121 "%s: undersized (%zu B) trailing (#%u) LSA header",
1122 __func__
, length
, counted_lsas
);
1125 /* save on ntohs() calls here and in the LSA validator */
1126 lsalen
= OSPF6_LSA_SIZE(lsah
);
1127 if (lsalen
< OSPF6_LSA_HEADER_SIZE
) {
1128 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
,
1131 "%s: malformed LSA header #%u, declared length is %u B",
1132 __func__
, counted_lsas
, lsalen
);
1136 /* less checks here and in ospf6_lsa_examin() */
1137 if (MSG_OK
!= ospf6_lsa_examin(lsah
, lsalen
, 1)) {
1138 if (IS_OSPF6_DEBUG_MESSAGE(
1139 OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1141 "%s: anomaly in header-only %s LSA #%u",
1143 ospf6_lstype_name(lsah
->type
),
1147 lsah
= (struct ospf6_lsa_header
1149 + OSPF6_LSA_HEADER_SIZE
);
1150 length
-= OSPF6_LSA_HEADER_SIZE
;
1152 /* make sure the input buffer is deep enough before
1154 if (lsalen
> length
) {
1155 if (IS_OSPF6_DEBUG_MESSAGE(
1156 OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1158 "%s: anomaly in %s LSA #%u: declared length is %u B, buffered length is %zu B",
1160 ospf6_lstype_name(lsah
->type
),
1161 counted_lsas
, lsalen
, length
);
1164 if (MSG_OK
!= ospf6_lsa_examin(lsah
, lsalen
, 0)) {
1165 if (IS_OSPF6_DEBUG_MESSAGE(
1166 OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1168 "%s: anomaly in %s LSA #%u",
1170 ospf6_lstype_name(lsah
->type
),
1174 lsah
= (struct ospf6_lsa_header
*)((caddr_t
)lsah
1181 if (declared_num_lsas
&& counted_lsas
!= declared_num_lsas
) {
1182 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1184 "%s: #LSAs declared (%u) does not match actual (%u)",
1185 __func__
, declared_num_lsas
, counted_lsas
);
1191 /* Verify a complete OSPF packet for proper sizing/alignment. */
1192 static unsigned ospf6_packet_examin(struct ospf6_header
*oh
,
1193 const unsigned bytesonwire
)
1195 struct ospf6_lsupdate
*lsupd
;
1198 /* length, 1st approximation */
1199 if (bytesonwire
< OSPF6_HEADER_SIZE
) {
1200 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1201 zlog_debug("%s: undersized (%u B) packet", __func__
,
1205 /* Now it is safe to access header fields. */
1206 if (bytesonwire
!= ntohs(oh
->length
)) {
1207 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1209 "%s: %s packet length error (%u real, %u declared)",
1210 __func__
, lookup_msg(ospf6_message_type_str
,
1212 bytesonwire
, ntohs(oh
->length
));
1216 if (oh
->version
!= OSPFV3_VERSION
) {
1217 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1218 zlog_debug("%s: invalid (%u) protocol version",
1219 __func__
, oh
->version
);
1222 /* length, 2nd approximation */
1223 if (oh
->type
< OSPF6_MESSAGE_TYPE_ALL
&& ospf6_packet_minlen
[oh
->type
]
1225 < OSPF6_HEADER_SIZE
+ ospf6_packet_minlen
[oh
->type
]) {
1226 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1227 zlog_debug("%s: undersized (%u B) %s packet", __func__
,
1229 lookup_msg(ospf6_message_type_str
, oh
->type
,
1233 /* type-specific deeper validation */
1235 case OSPF6_MESSAGE_TYPE_HELLO
:
1236 /* RFC5340 A.3.2, packet header + OSPF6_HELLO_MIN_SIZE bytes
1238 by N>=0 router-IDs. */
1240 == (bytesonwire
- OSPF6_HEADER_SIZE
- OSPF6_HELLO_MIN_SIZE
)
1243 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1244 zlog_debug("%s: alignment error in %s packet", __func__
,
1245 lookup_msg(ospf6_message_type_str
, oh
->type
,
1248 case OSPF6_MESSAGE_TYPE_DBDESC
:
1249 /* RFC5340 A.3.3, packet header + OSPF6_DB_DESC_MIN_SIZE bytes
1251 by N>=0 header-only LSAs. */
1252 test
= ospf6_lsaseq_examin(
1253 (struct ospf6_lsa_header
*)((caddr_t
)oh
1255 + OSPF6_DB_DESC_MIN_SIZE
),
1256 bytesonwire
- OSPF6_HEADER_SIZE
1257 - OSPF6_DB_DESC_MIN_SIZE
,
1260 case OSPF6_MESSAGE_TYPE_LSREQ
:
1261 /* RFC5340 A.3.4, packet header + N>=0 LS description blocks. */
1263 == (bytesonwire
- OSPF6_HEADER_SIZE
- OSPF6_LS_REQ_MIN_SIZE
)
1264 % OSPF6_LSREQ_LSDESC_FIX_SIZE
)
1266 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1267 zlog_debug("%s: alignment error in %s packet", __func__
,
1268 lookup_msg(ospf6_message_type_str
, oh
->type
,
1271 case OSPF6_MESSAGE_TYPE_LSUPDATE
:
1272 /* RFC5340 A.3.5, packet header + OSPF6_LS_UPD_MIN_SIZE bytes
1274 by N>=0 full LSAs (with N declared beforehand). */
1275 lsupd
= (struct ospf6_lsupdate
*)((caddr_t
)oh
1276 + OSPF6_HEADER_SIZE
);
1277 test
= ospf6_lsaseq_examin(
1278 (struct ospf6_lsa_header
*)((caddr_t
)lsupd
1279 + OSPF6_LS_UPD_MIN_SIZE
),
1280 bytesonwire
- OSPF6_HEADER_SIZE
- OSPF6_LS_UPD_MIN_SIZE
,
1281 0, ntohl(lsupd
->lsa_number
) /* 32 bits */
1284 case OSPF6_MESSAGE_TYPE_LSACK
:
1285 /* RFC5340 A.3.6, packet header + N>=0 header-only LSAs. */
1286 test
= ospf6_lsaseq_examin(
1287 (struct ospf6_lsa_header
*)((caddr_t
)oh
1289 + OSPF6_LS_ACK_MIN_SIZE
),
1290 bytesonwire
- OSPF6_HEADER_SIZE
- OSPF6_LS_ACK_MIN_SIZE
,
1294 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1295 zlog_debug("%s: invalid (%u) message type", __func__
,
1300 && IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1301 zlog_debug("%s: anomaly in %s packet", __func__
,
1302 lookup_msg(ospf6_message_type_str
, oh
->type
, NULL
));
1306 /* Verify particular fields of otherwise correct received OSPF packet to
1307 meet the requirements of RFC. */
1308 static int ospf6_rxpacket_examin(struct ospf6_interface
*oi
,
1309 struct ospf6_header
*oh
,
1310 const unsigned bytesonwire
)
1312 char buf
[2][INET_ADDRSTRLEN
];
1314 if (MSG_OK
!= ospf6_packet_examin(oh
, bytesonwire
))
1318 if (oh
->area_id
!= oi
->area
->area_id
) {
1319 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
)) {
1320 if (oh
->area_id
== OSPF_AREA_BACKBONE
)
1322 "%s: Message may be via Virtual Link: not supported",
1326 "%s: Area-ID mismatch (my %s, rcvd %s)",
1328 inet_ntop(AF_INET
, &oi
->area
->area_id
,
1329 buf
[0], INET_ADDRSTRLEN
),
1330 inet_ntop(AF_INET
, &oh
->area_id
, buf
[1],
1336 /* Instance-ID check */
1337 if (oh
->instance_id
!= oi
->instance_id
) {
1338 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1339 zlog_debug("%s: Instance-ID mismatch (my %u, rcvd %u)",
1340 __func__
, oi
->instance_id
, oh
->instance_id
);
1344 /* Router-ID check */
1345 if (oh
->router_id
== oi
->area
->ospf6
->router_id
) {
1346 zlog_warn("%s: Duplicate Router-ID (%s)", __func__
,
1347 inet_ntop(AF_INET
, &oh
->router_id
, buf
[0],
1354 static void ospf6_lsupdate_recv(struct in6_addr
*src
, struct in6_addr
*dst
,
1355 struct ospf6_interface
*oi
,
1356 struct ospf6_header
*oh
)
1358 struct ospf6_neighbor
*on
;
1359 struct ospf6_lsupdate
*lsupdate
;
1362 on
= ospf6_neighbor_lookup(oh
->router_id
, oi
);
1364 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1365 zlog_debug("Neighbor not found, ignore");
1369 if (on
->state
!= OSPF6_NEIGHBOR_EXCHANGE
1370 && on
->state
!= OSPF6_NEIGHBOR_LOADING
1371 && on
->state
!= OSPF6_NEIGHBOR_FULL
) {
1372 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1373 zlog_debug("Neighbor state less than Exchange, ignore");
1377 lsupdate
= (struct ospf6_lsupdate
*)((caddr_t
)oh
1378 + sizeof(struct ospf6_header
));
1383 for (p
= (char *)((caddr_t
)lsupdate
+ sizeof(struct ospf6_lsupdate
));
1384 p
< OSPF6_MESSAGE_END(oh
)
1385 && p
+ OSPF6_LSA_SIZE(p
) <= OSPF6_MESSAGE_END(oh
);
1386 p
+= OSPF6_LSA_SIZE(p
)) {
1387 ospf6_receive_lsa(on
, (struct ospf6_lsa_header
*)p
);
1390 assert(p
== OSPF6_MESSAGE_END(oh
));
1393 static void ospf6_lsack_recv(struct in6_addr
*src
, struct in6_addr
*dst
,
1394 struct ospf6_interface
*oi
,
1395 struct ospf6_header
*oh
)
1397 struct ospf6_neighbor
*on
;
1399 struct ospf6_lsa
*his
, *mine
;
1400 struct ospf6_lsdb
*lsdb
= NULL
;
1402 assert(oh
->type
== OSPF6_MESSAGE_TYPE_LSACK
);
1404 on
= ospf6_neighbor_lookup(oh
->router_id
, oi
);
1406 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1407 zlog_debug("Neighbor not found, ignore");
1411 if (on
->state
!= OSPF6_NEIGHBOR_EXCHANGE
1412 && on
->state
!= OSPF6_NEIGHBOR_LOADING
1413 && on
->state
!= OSPF6_NEIGHBOR_FULL
) {
1414 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1415 zlog_debug("Neighbor state less than Exchange, ignore");
1421 for (p
= (char *)((caddr_t
)oh
+ sizeof(struct ospf6_header
));
1422 p
+ sizeof(struct ospf6_lsa_header
) <= OSPF6_MESSAGE_END(oh
);
1423 p
+= sizeof(struct ospf6_lsa_header
)) {
1424 his
= ospf6_lsa_create_headeronly((struct ospf6_lsa_header
*)p
);
1426 switch (OSPF6_LSA_SCOPE(his
->header
->type
)) {
1427 case OSPF6_SCOPE_LINKLOCAL
:
1428 lsdb
= on
->ospf6_if
->lsdb
;
1430 case OSPF6_SCOPE_AREA
:
1431 lsdb
= on
->ospf6_if
->area
->lsdb
;
1433 case OSPF6_SCOPE_AS
:
1434 lsdb
= on
->ospf6_if
->area
->ospf6
->lsdb
;
1436 case OSPF6_SCOPE_RESERVED
:
1437 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1438 zlog_debug("Ignoring LSA of reserved scope");
1439 ospf6_lsa_delete(his
);
1444 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1445 zlog_debug("%s acknowledged by %s", his
->name
,
1448 /* Find database copy */
1449 mine
= ospf6_lsdb_lookup(his
->header
->type
, his
->header
->id
,
1450 his
->header
->adv_router
, lsdb
);
1452 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1453 zlog_debug("No database copy");
1454 ospf6_lsa_delete(his
);
1458 /* Check if the LSA is on his retrans-list */
1459 mine
= ospf6_lsdb_lookup(his
->header
->type
, his
->header
->id
,
1460 his
->header
->adv_router
,
1463 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1464 zlog_debug("Not on %s's retrans-list",
1466 ospf6_lsa_delete(his
);
1470 if (ospf6_lsa_compare(his
, mine
) != 0) {
1471 /* Log this questionable acknowledgement,
1472 and examine the next one. */
1473 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1474 zlog_debug("Questionable acknowledgement");
1475 ospf6_lsa_delete(his
);
1479 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
))
1481 "Acknowledged, remove from %s's retrans-list",
1484 ospf6_decrement_retrans_count(mine
);
1485 if (OSPF6_LSA_IS_MAXAGE(mine
))
1486 ospf6_maxage_remove(on
->ospf6_if
->area
->ospf6
);
1487 ospf6_lsdb_remove(mine
, on
->retrans_list
);
1488 ospf6_lsa_delete(his
);
1491 assert(p
== OSPF6_MESSAGE_END(oh
));
1494 static uint8_t *recvbuf
= NULL
;
1495 static uint8_t *sendbuf
= NULL
;
1496 static unsigned int iobuflen
= 0;
1498 int ospf6_iobuf_size(unsigned int size
)
1500 uint8_t *recvnew
, *sendnew
;
1502 if (size
<= iobuflen
)
1505 recvnew
= XMALLOC(MTYPE_OSPF6_MESSAGE
, size
);
1506 sendnew
= XMALLOC(MTYPE_OSPF6_MESSAGE
, size
);
1509 XFREE(MTYPE_OSPF6_MESSAGE
, recvbuf
);
1511 XFREE(MTYPE_OSPF6_MESSAGE
, sendbuf
);
1519 void ospf6_message_terminate(void)
1522 XFREE(MTYPE_OSPF6_MESSAGE
, recvbuf
);
1527 XFREE(MTYPE_OSPF6_MESSAGE
, sendbuf
);
1534 int ospf6_receive(struct thread
*thread
)
1538 char srcname
[64], dstname
[64];
1539 struct in6_addr src
, dst
;
1541 struct iovec iovector
[2];
1542 struct ospf6_interface
*oi
;
1543 struct ospf6_header
*oh
;
1545 /* add next read thread */
1546 sockfd
= THREAD_FD(thread
);
1547 thread_add_read(master
, ospf6_receive
, NULL
, sockfd
, NULL
);
1550 memset(&src
, 0, sizeof(src
));
1551 memset(&dst
, 0, sizeof(dst
));
1553 memset(recvbuf
, 0, iobuflen
);
1554 iovector
[0].iov_base
= recvbuf
;
1555 iovector
[0].iov_len
= iobuflen
;
1556 iovector
[1].iov_base
= NULL
;
1557 iovector
[1].iov_len
= 0;
1559 /* receive message */
1560 len
= ospf6_recvmsg(&src
, &dst
, &ifindex
, iovector
);
1561 if (len
> iobuflen
) {
1562 flog_err(LIB_ERR_DEVELOPMENT
,
1563 "Excess message read");
1567 oi
= ospf6_interface_lookup_by_ifindex(ifindex
);
1568 if (oi
== NULL
|| oi
->area
== NULL
1569 || CHECK_FLAG(oi
->flag
, OSPF6_INTERFACE_DISABLE
)) {
1570 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1571 zlog_debug("Message received on disabled interface");
1574 if (CHECK_FLAG(oi
->flag
, OSPF6_INTERFACE_PASSIVE
)) {
1575 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
1576 zlog_debug("%s: Ignore message on passive interface %s",
1577 __func__
, oi
->interface
->name
);
1581 oh
= (struct ospf6_header
*)recvbuf
;
1582 if (ospf6_rxpacket_examin(oi
, oh
, len
) != MSG_OK
)
1585 /* Being here means, that no sizing/alignment issues were detected in
1586 the input packet. This renders the additional checks performed below
1587 and also in the type-specific dispatching functions a dead code,
1588 which can be dismissed in a cleanup-focused review round later. */
1591 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, RECV
)) {
1592 inet_ntop(AF_INET6
, &src
, srcname
, sizeof(srcname
));
1593 inet_ntop(AF_INET6
, &dst
, dstname
, sizeof(dstname
));
1594 zlog_debug("%s received on %s",
1595 lookup_msg(ospf6_message_type_str
, oh
->type
, NULL
),
1596 oi
->interface
->name
);
1597 zlog_debug(" src: %s", srcname
);
1598 zlog_debug(" dst: %s", dstname
);
1601 case OSPF6_MESSAGE_TYPE_HELLO
:
1602 ospf6_hello_print(oh
);
1604 case OSPF6_MESSAGE_TYPE_DBDESC
:
1605 ospf6_dbdesc_print(oh
);
1607 case OSPF6_MESSAGE_TYPE_LSREQ
:
1608 ospf6_lsreq_print(oh
);
1610 case OSPF6_MESSAGE_TYPE_LSUPDATE
:
1611 ospf6_lsupdate_print(oh
);
1613 case OSPF6_MESSAGE_TYPE_LSACK
:
1614 ospf6_lsack_print(oh
);
1622 case OSPF6_MESSAGE_TYPE_HELLO
:
1623 ospf6_hello_recv(&src
, &dst
, oi
, oh
);
1626 case OSPF6_MESSAGE_TYPE_DBDESC
:
1627 ospf6_dbdesc_recv(&src
, &dst
, oi
, oh
);
1630 case OSPF6_MESSAGE_TYPE_LSREQ
:
1631 ospf6_lsreq_recv(&src
, &dst
, oi
, oh
);
1634 case OSPF6_MESSAGE_TYPE_LSUPDATE
:
1635 ospf6_lsupdate_recv(&src
, &dst
, oi
, oh
);
1638 case OSPF6_MESSAGE_TYPE_LSACK
:
1639 ospf6_lsack_recv(&src
, &dst
, oi
, oh
);
1649 static void ospf6_send(struct in6_addr
*src
, struct in6_addr
*dst
,
1650 struct ospf6_interface
*oi
, struct ospf6_header
*oh
)
1653 char srcname
[64], dstname
[64];
1654 struct iovec iovector
[2];
1657 iovector
[0].iov_base
= (caddr_t
)oh
;
1658 iovector
[0].iov_len
= ntohs(oh
->length
);
1659 iovector
[1].iov_base
= NULL
;
1660 iovector
[1].iov_len
= 0;
1662 /* fill OSPF header */
1663 oh
->version
= OSPFV3_VERSION
;
1664 /* message type must be set before */
1665 /* message length must be set before */
1666 oh
->router_id
= oi
->area
->ospf6
->router_id
;
1667 oh
->area_id
= oi
->area
->area_id
;
1668 /* checksum is calculated by kernel */
1669 oh
->instance_id
= oi
->instance_id
;
1673 if (IS_OSPF6_DEBUG_MESSAGE(oh
->type
, SEND
)) {
1674 inet_ntop(AF_INET6
, dst
, dstname
, sizeof(dstname
));
1676 inet_ntop(AF_INET6
, src
, srcname
, sizeof(srcname
));
1678 memset(srcname
, 0, sizeof(srcname
));
1679 zlog_debug("%s send on %s",
1680 lookup_msg(ospf6_message_type_str
, oh
->type
, NULL
),
1681 oi
->interface
->name
);
1682 zlog_debug(" src: %s", srcname
);
1683 zlog_debug(" dst: %s", dstname
);
1686 case OSPF6_MESSAGE_TYPE_HELLO
:
1687 ospf6_hello_print(oh
);
1689 case OSPF6_MESSAGE_TYPE_DBDESC
:
1690 ospf6_dbdesc_print(oh
);
1692 case OSPF6_MESSAGE_TYPE_LSREQ
:
1693 ospf6_lsreq_print(oh
);
1695 case OSPF6_MESSAGE_TYPE_LSUPDATE
:
1696 ospf6_lsupdate_print(oh
);
1698 case OSPF6_MESSAGE_TYPE_LSACK
:
1699 ospf6_lsack_print(oh
);
1702 zlog_debug("Unknown message");
1709 len
= ospf6_sendmsg(src
, dst
, &oi
->interface
->ifindex
, iovector
);
1710 if (len
!= ntohs(oh
->length
))
1711 flog_err(LIB_ERR_DEVELOPMENT
, "Could not send entire message");
1714 static uint32_t ospf6_packet_max(struct ospf6_interface
*oi
)
1716 assert(oi
->ifmtu
> sizeof(struct ip6_hdr
));
1717 return oi
->ifmtu
- (sizeof(struct ip6_hdr
));
1720 int ospf6_hello_send(struct thread
*thread
)
1722 struct ospf6_interface
*oi
;
1723 struct ospf6_header
*oh
;
1724 struct ospf6_hello
*hello
;
1726 struct listnode
*node
, *nnode
;
1727 struct ospf6_neighbor
*on
;
1729 oi
= (struct ospf6_interface
*)THREAD_ARG(thread
);
1730 oi
->thread_send_hello
= (struct thread
*)NULL
;
1732 if (oi
->state
<= OSPF6_INTERFACE_DOWN
) {
1733 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_HELLO
, SEND
))
1734 zlog_debug("Unable to send Hello on down interface %s",
1735 oi
->interface
->name
);
1739 if (iobuflen
== 0) {
1740 zlog_debug("Unable to send Hello on interface %s iobuflen is 0",
1741 oi
->interface
->name
);
1745 /* set next thread */
1746 thread_add_timer(master
, ospf6_hello_send
, oi
, oi
->hello_interval
,
1747 &oi
->thread_send_hello
);
1749 memset(sendbuf
, 0, iobuflen
);
1750 oh
= (struct ospf6_header
*)sendbuf
;
1751 hello
= (struct ospf6_hello
*)((caddr_t
)oh
1752 + sizeof(struct ospf6_header
));
1754 hello
->interface_id
= htonl(oi
->interface
->ifindex
);
1755 hello
->priority
= oi
->priority
;
1756 hello
->options
[0] = oi
->area
->options
[0];
1757 hello
->options
[1] = oi
->area
->options
[1];
1758 hello
->options
[2] = oi
->area
->options
[2];
1759 hello
->hello_interval
= htons(oi
->hello_interval
);
1760 hello
->dead_interval
= htons(oi
->dead_interval
);
1761 hello
->drouter
= oi
->drouter
;
1762 hello
->bdrouter
= oi
->bdrouter
;
1764 p
= (uint8_t *)((caddr_t
)hello
+ sizeof(struct ospf6_hello
));
1766 for (ALL_LIST_ELEMENTS(oi
->neighbor_list
, node
, nnode
, on
)) {
1767 if (on
->state
< OSPF6_NEIGHBOR_INIT
)
1770 if (p
- sendbuf
+ sizeof(uint32_t) > ospf6_packet_max(oi
)) {
1771 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_HELLO
,
1774 "sending Hello message: exceeds I/F MTU");
1778 memcpy(p
, &on
->router_id
, sizeof(uint32_t));
1779 p
+= sizeof(uint32_t);
1782 oh
->type
= OSPF6_MESSAGE_TYPE_HELLO
;
1783 oh
->length
= htons(p
- sendbuf
);
1787 ospf6_send(oi
->linklocal_addr
, &allspfrouters6
, oi
, oh
);
1791 int ospf6_dbdesc_send(struct thread
*thread
)
1793 struct ospf6_neighbor
*on
;
1794 struct ospf6_header
*oh
;
1795 struct ospf6_dbdesc
*dbdesc
;
1797 struct ospf6_lsa
*lsa
;
1798 struct in6_addr
*dst
;
1800 on
= (struct ospf6_neighbor
*)THREAD_ARG(thread
);
1801 on
->thread_send_dbdesc
= (struct thread
*)NULL
;
1803 if (on
->state
< OSPF6_NEIGHBOR_EXSTART
) {
1804 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_DBDESC
, SEND
))
1806 "Quit to send DbDesc to neighbor %s state %s",
1807 on
->name
, ospf6_neighbor_state_str
[on
->state
]);
1811 /* set next thread if master */
1812 if (CHECK_FLAG(on
->dbdesc_bits
, OSPF6_DBDESC_MSBIT
))
1813 thread_add_timer(master
, ospf6_dbdesc_send
, on
,
1814 on
->ospf6_if
->rxmt_interval
,
1815 &on
->thread_send_dbdesc
);
1817 memset(sendbuf
, 0, iobuflen
);
1818 oh
= (struct ospf6_header
*)sendbuf
;
1819 dbdesc
= (struct ospf6_dbdesc
*)((caddr_t
)oh
1820 + sizeof(struct ospf6_header
));
1822 /* if this is initial one, initialize sequence number for DbDesc */
1823 if (CHECK_FLAG(on
->dbdesc_bits
, OSPF6_DBDESC_IBIT
)
1824 && (on
->dbdesc_seqnum
== 0)) {
1825 on
->dbdesc_seqnum
= monotime(NULL
);
1828 dbdesc
->options
[0] = on
->ospf6_if
->area
->options
[0];
1829 dbdesc
->options
[1] = on
->ospf6_if
->area
->options
[1];
1830 dbdesc
->options
[2] = on
->ospf6_if
->area
->options
[2];
1831 dbdesc
->ifmtu
= htons(on
->ospf6_if
->ifmtu
);
1832 dbdesc
->bits
= on
->dbdesc_bits
;
1833 dbdesc
->seqnum
= htonl(on
->dbdesc_seqnum
);
1835 /* if this is not initial one, set LSA headers in dbdesc */
1836 p
= (uint8_t *)((caddr_t
)dbdesc
+ sizeof(struct ospf6_dbdesc
));
1837 if (!CHECK_FLAG(on
->dbdesc_bits
, OSPF6_DBDESC_IBIT
)) {
1838 for (ALL_LSDB(on
->dbdesc_list
, lsa
)) {
1839 ospf6_lsa_age_update_to_send(lsa
,
1840 on
->ospf6_if
->transdelay
);
1843 if (p
- sendbuf
+ sizeof(struct ospf6_lsa_header
)
1844 > ospf6_packet_max(on
->ospf6_if
)) {
1845 ospf6_lsdb_lsa_unlock(lsa
);
1848 memcpy(p
, lsa
->header
, sizeof(struct ospf6_lsa_header
));
1849 p
+= sizeof(struct ospf6_lsa_header
);
1853 oh
->type
= OSPF6_MESSAGE_TYPE_DBDESC
;
1854 oh
->length
= htons(p
- sendbuf
);
1857 if (on
->ospf6_if
->state
== OSPF6_INTERFACE_POINTTOPOINT
)
1858 dst
= &allspfrouters6
;
1860 dst
= &on
->linklocal_addr
;
1862 on
->ospf6_if
->db_desc_out
++;
1864 ospf6_send(on
->ospf6_if
->linklocal_addr
, dst
, on
->ospf6_if
, oh
);
1869 int ospf6_dbdesc_send_newone(struct thread
*thread
)
1871 struct ospf6_neighbor
*on
;
1872 struct ospf6_lsa
*lsa
;
1873 unsigned int size
= 0;
1875 on
= (struct ospf6_neighbor
*)THREAD_ARG(thread
);
1876 ospf6_lsdb_remove_all(on
->dbdesc_list
);
1878 /* move LSAs from summary_list to dbdesc_list (within neighbor
1880 so that ospf6_send_dbdesc () can send those LSAs */
1881 size
= sizeof(struct ospf6_lsa_header
) + sizeof(struct ospf6_dbdesc
);
1882 for (ALL_LSDB(on
->summary_list
, lsa
)) {
1883 if (size
+ sizeof(struct ospf6_lsa_header
)
1884 > ospf6_packet_max(on
->ospf6_if
)) {
1885 ospf6_lsdb_lsa_unlock(lsa
);
1889 ospf6_lsdb_add(ospf6_lsa_copy(lsa
), on
->dbdesc_list
);
1890 ospf6_lsdb_remove(lsa
, on
->summary_list
);
1891 size
+= sizeof(struct ospf6_lsa_header
);
1894 if (on
->summary_list
->count
== 0)
1895 UNSET_FLAG(on
->dbdesc_bits
, OSPF6_DBDESC_MBIT
);
1897 /* If slave, More bit check must be done here */
1898 if (!CHECK_FLAG(on
->dbdesc_bits
, OSPF6_DBDESC_MSBIT
) && /* Slave */
1899 !CHECK_FLAG(on
->dbdesc_last
.bits
, OSPF6_DBDESC_MBIT
)
1900 && !CHECK_FLAG(on
->dbdesc_bits
, OSPF6_DBDESC_MBIT
))
1901 thread_add_event(master
, exchange_done
, on
, 0, NULL
);
1903 thread_execute(master
, ospf6_dbdesc_send
, on
, 0);
1907 int ospf6_lsreq_send(struct thread
*thread
)
1909 struct ospf6_neighbor
*on
;
1910 struct ospf6_header
*oh
;
1911 struct ospf6_lsreq_entry
*e
;
1913 struct ospf6_lsa
*lsa
, *last_req
;
1915 on
= (struct ospf6_neighbor
*)THREAD_ARG(thread
);
1916 on
->thread_send_lsreq
= (struct thread
*)NULL
;
1918 /* LSReq will be sent only in ExStart or Loading */
1919 if (on
->state
!= OSPF6_NEIGHBOR_EXCHANGE
1920 && on
->state
!= OSPF6_NEIGHBOR_LOADING
) {
1921 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSREQ
, SEND
))
1922 zlog_debug("Quit to send LSReq to neighbor %s state %s",
1924 ospf6_neighbor_state_str
[on
->state
]);
1928 /* schedule loading_done if request list is empty */
1929 if (on
->request_list
->count
== 0) {
1930 thread_add_event(master
, loading_done
, on
, 0, NULL
);
1934 memset(sendbuf
, 0, iobuflen
);
1935 oh
= (struct ospf6_header
*)sendbuf
;
1938 /* set Request entries in lsreq */
1939 p
= (uint8_t *)((caddr_t
)oh
+ sizeof(struct ospf6_header
));
1940 for (ALL_LSDB(on
->request_list
, lsa
)) {
1942 if (p
- sendbuf
+ sizeof(struct ospf6_lsreq_entry
)
1943 > ospf6_packet_max(on
->ospf6_if
)) {
1944 ospf6_lsdb_lsa_unlock(lsa
);
1948 e
= (struct ospf6_lsreq_entry
*)p
;
1949 e
->type
= lsa
->header
->type
;
1950 e
->id
= lsa
->header
->id
;
1951 e
->adv_router
= lsa
->header
->adv_router
;
1952 p
+= sizeof(struct ospf6_lsreq_entry
);
1956 if (last_req
!= NULL
) {
1957 if (on
->last_ls_req
!= NULL
) {
1958 ospf6_lsa_unlock(on
->last_ls_req
);
1960 ospf6_lsa_lock(last_req
);
1961 on
->last_ls_req
= last_req
;
1964 oh
->type
= OSPF6_MESSAGE_TYPE_LSREQ
;
1965 oh
->length
= htons(p
- sendbuf
);
1967 on
->ospf6_if
->ls_req_out
++;
1969 if (on
->ospf6_if
->state
== OSPF6_INTERFACE_POINTTOPOINT
)
1970 ospf6_send(on
->ospf6_if
->linklocal_addr
, &allspfrouters6
,
1973 ospf6_send(on
->ospf6_if
->linklocal_addr
, &on
->linklocal_addr
,
1976 /* set next thread */
1977 if (on
->request_list
->count
!= 0) {
1978 on
->thread_send_lsreq
= NULL
;
1979 thread_add_timer(master
, ospf6_lsreq_send
, on
,
1980 on
->ospf6_if
->rxmt_interval
,
1981 &on
->thread_send_lsreq
);
1987 static void ospf6_send_lsupdate(struct ospf6_neighbor
*on
,
1988 struct ospf6_interface
*oi
,
1989 struct ospf6_header
*oh
)
1993 on
->ospf6_if
->ls_upd_out
++;
1995 if ((on
->ospf6_if
->state
== OSPF6_INTERFACE_POINTTOPOINT
)
1996 || (on
->ospf6_if
->state
== OSPF6_INTERFACE_DR
)
1997 || (on
->ospf6_if
->state
== OSPF6_INTERFACE_BDR
)) {
1998 ospf6_send(on
->ospf6_if
->linklocal_addr
,
1999 &allspfrouters6
, on
->ospf6_if
, oh
);
2001 ospf6_send(on
->ospf6_if
->linklocal_addr
,
2002 &on
->linklocal_addr
, on
->ospf6_if
, oh
);
2008 if ((oi
->state
== OSPF6_INTERFACE_POINTTOPOINT
)
2009 || (oi
->state
== OSPF6_INTERFACE_DR
)
2010 || (oi
->state
== OSPF6_INTERFACE_BDR
)) {
2011 ospf6_send(oi
->linklocal_addr
, &allspfrouters6
, oi
, oh
);
2013 ospf6_send(oi
->linklocal_addr
, &alldrouters6
, oi
, oh
);
2018 int ospf6_lsupdate_send_neighbor(struct thread
*thread
)
2020 struct ospf6_neighbor
*on
;
2021 struct ospf6_header
*oh
;
2022 struct ospf6_lsupdate
*lsupdate
;
2025 struct ospf6_lsa
*lsa
;
2027 on
= (struct ospf6_neighbor
*)THREAD_ARG(thread
);
2028 on
->thread_send_lsupdate
= (struct thread
*)NULL
;
2030 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE
, SEND
))
2031 zlog_debug("LSUpdate to neighbor %s", on
->name
);
2033 if (on
->state
< OSPF6_NEIGHBOR_EXCHANGE
) {
2034 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE
, SEND
))
2035 zlog_debug("Quit to send (neighbor state %s)",
2036 ospf6_neighbor_state_str
[on
->state
]);
2040 memset(sendbuf
, 0, iobuflen
);
2041 oh
= (struct ospf6_header
*)sendbuf
;
2042 lsupdate
= (struct ospf6_lsupdate
*)((caddr_t
)oh
2043 + sizeof(struct ospf6_header
));
2045 p
= (uint8_t *)((caddr_t
)lsupdate
+ sizeof(struct ospf6_lsupdate
));
2048 /* lsupdate_list lists those LSA which doesn't need to be
2049 retransmitted. remove those from the list */
2050 for (ALL_LSDB(on
->lsupdate_list
, lsa
)) {
2052 if ((p
- sendbuf
+ (unsigned int)OSPF6_LSA_SIZE(lsa
->header
))
2053 > ospf6_packet_max(on
->ospf6_if
)) {
2055 oh
->type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2056 oh
->length
= htons(p
- sendbuf
);
2057 lsupdate
->lsa_number
= htonl(lsa_cnt
);
2059 ospf6_send_lsupdate(on
, NULL
, oh
);
2061 memset(sendbuf
, 0, iobuflen
);
2062 oh
= (struct ospf6_header
*)sendbuf
;
2063 lsupdate
= (struct ospf6_lsupdate
2068 p
= (uint8_t *)((caddr_t
)lsupdate
2075 ospf6_lsa_age_update_to_send(lsa
, on
->ospf6_if
->transdelay
);
2076 memcpy(p
, lsa
->header
, OSPF6_LSA_SIZE(lsa
->header
));
2077 p
+= OSPF6_LSA_SIZE(lsa
->header
);
2080 assert(lsa
->lock
== 2);
2081 ospf6_lsdb_remove(lsa
, on
->lsupdate_list
);
2085 oh
->type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2086 oh
->length
= htons(p
- sendbuf
);
2087 lsupdate
->lsa_number
= htonl(lsa_cnt
);
2088 ospf6_send_lsupdate(on
, NULL
, oh
);
2091 /* The addresses used for retransmissions are different from those sent
2093 first time and so we need to separate them here.
2095 memset(sendbuf
, 0, iobuflen
);
2096 oh
= (struct ospf6_header
*)sendbuf
;
2097 lsupdate
= (struct ospf6_lsupdate
*)((caddr_t
)oh
2098 + sizeof(struct ospf6_header
));
2099 p
= (uint8_t *)((caddr_t
)lsupdate
+ sizeof(struct ospf6_lsupdate
));
2102 for (ALL_LSDB(on
->retrans_list
, lsa
)) {
2104 if ((p
- sendbuf
+ (unsigned int)OSPF6_LSA_SIZE(lsa
->header
))
2105 > ospf6_packet_max(on
->ospf6_if
)) {
2107 oh
->type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2108 oh
->length
= htons(p
- sendbuf
);
2109 lsupdate
->lsa_number
= htonl(lsa_cnt
);
2111 if (on
->ospf6_if
->state
2112 == OSPF6_INTERFACE_POINTTOPOINT
) {
2113 ospf6_send(on
->ospf6_if
->linklocal_addr
,
2117 ospf6_send(on
->ospf6_if
->linklocal_addr
,
2118 &on
->linklocal_addr
,
2122 memset(sendbuf
, 0, iobuflen
);
2123 oh
= (struct ospf6_header
*)sendbuf
;
2124 lsupdate
= (struct ospf6_lsupdate
2128 p
= (uint8_t *)((caddr_t
)lsupdate
2135 ospf6_lsa_age_update_to_send(lsa
, on
->ospf6_if
->transdelay
);
2136 memcpy(p
, lsa
->header
, OSPF6_LSA_SIZE(lsa
->header
));
2137 p
+= OSPF6_LSA_SIZE(lsa
->header
);
2142 oh
->type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2143 oh
->length
= htons(p
- sendbuf
);
2144 lsupdate
->lsa_number
= htonl(lsa_cnt
);
2146 if (on
->ospf6_if
->state
== OSPF6_INTERFACE_POINTTOPOINT
)
2147 ospf6_send(on
->ospf6_if
->linklocal_addr
,
2148 &allspfrouters6
, on
->ospf6_if
, oh
);
2150 ospf6_send(on
->ospf6_if
->linklocal_addr
,
2151 &on
->linklocal_addr
, on
->ospf6_if
, oh
);
2154 if (on
->lsupdate_list
->count
!= 0) {
2155 on
->thread_send_lsupdate
= NULL
;
2156 thread_add_event(master
, ospf6_lsupdate_send_neighbor
, on
, 0,
2157 &on
->thread_send_lsupdate
);
2158 } else if (on
->retrans_list
->count
!= 0) {
2159 on
->thread_send_lsupdate
= NULL
;
2160 thread_add_timer(master
, ospf6_lsupdate_send_neighbor
, on
,
2161 on
->ospf6_if
->rxmt_interval
,
2162 &on
->thread_send_lsupdate
);
2167 int ospf6_lsupdate_send_neighbor_now(struct ospf6_neighbor
*on
,
2168 struct ospf6_lsa
*lsa
)
2170 struct ospf6_header
*oh
;
2171 struct ospf6_lsupdate
*lsupdate
;
2175 memset(sendbuf
, 0, iobuflen
);
2176 oh
= (struct ospf6_header
*)sendbuf
;
2177 lsupdate
= (struct ospf6_lsupdate
*)((caddr_t
)oh
2178 + sizeof(struct ospf6_header
));
2180 p
= (uint8_t *)((caddr_t
)lsupdate
+ sizeof(struct ospf6_lsupdate
));
2181 ospf6_lsa_age_update_to_send(lsa
, on
->ospf6_if
->transdelay
);
2182 memcpy(p
, lsa
->header
, OSPF6_LSA_SIZE(lsa
->header
));
2183 p
+= OSPF6_LSA_SIZE(lsa
->header
);
2186 oh
->type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2187 oh
->length
= htons(p
- sendbuf
);
2188 lsupdate
->lsa_number
= htonl(lsa_cnt
);
2190 if (IS_OSPF6_DEBUG_FLOODING
2191 || IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE
, SEND
))
2192 zlog_debug("%s: Send lsupdate with lsa %s (age %u)",
2193 __PRETTY_FUNCTION__
, lsa
->name
,
2194 ntohs(lsa
->header
->age
));
2196 ospf6_send_lsupdate(on
, NULL
, oh
);
2201 int ospf6_lsupdate_send_interface(struct thread
*thread
)
2203 struct ospf6_interface
*oi
;
2204 struct ospf6_header
*oh
;
2205 struct ospf6_lsupdate
*lsupdate
;
2208 struct ospf6_lsa
*lsa
;
2210 oi
= (struct ospf6_interface
*)THREAD_ARG(thread
);
2211 oi
->thread_send_lsupdate
= (struct thread
*)NULL
;
2213 if (oi
->state
<= OSPF6_INTERFACE_WAITING
) {
2214 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE
, SEND
))
2216 "Quit to send LSUpdate to interface %s state %s",
2217 oi
->interface
->name
,
2218 ospf6_interface_state_str
[oi
->state
]);
2222 /* if we have nothing to send, return */
2223 if (oi
->lsupdate_list
->count
== 0)
2226 memset(sendbuf
, 0, iobuflen
);
2227 oh
= (struct ospf6_header
*)sendbuf
;
2228 lsupdate
= (struct ospf6_lsupdate
*)((caddr_t
)oh
2229 + sizeof(struct ospf6_header
));
2231 p
= (uint8_t *)((caddr_t
)lsupdate
+ sizeof(struct ospf6_lsupdate
));
2234 for (ALL_LSDB(oi
->lsupdate_list
, lsa
)) {
2236 if ((p
- sendbuf
+ ((unsigned int)OSPF6_LSA_SIZE(lsa
->header
)))
2237 > ospf6_packet_max(oi
)) {
2239 oh
->type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2240 oh
->length
= htons(p
- sendbuf
);
2241 lsupdate
->lsa_number
= htonl(lsa_cnt
);
2243 ospf6_send_lsupdate(NULL
, oi
, oh
);
2244 if (IS_OSPF6_DEBUG_MESSAGE(
2245 OSPF6_MESSAGE_TYPE_LSUPDATE
, SEND
))
2246 zlog_debug("%s: LSUpdate length %d",
2247 __PRETTY_FUNCTION__
,
2250 memset(sendbuf
, 0, iobuflen
);
2251 oh
= (struct ospf6_header
*)sendbuf
;
2252 lsupdate
= (struct ospf6_lsupdate
2257 p
= (uint8_t *)((caddr_t
)lsupdate
2264 ospf6_lsa_age_update_to_send(lsa
, oi
->transdelay
);
2265 memcpy(p
, lsa
->header
, OSPF6_LSA_SIZE(lsa
->header
));
2266 p
+= OSPF6_LSA_SIZE(lsa
->header
);
2269 assert(lsa
->lock
== 2);
2270 ospf6_lsdb_remove(lsa
, oi
->lsupdate_list
);
2274 oh
->type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2275 oh
->length
= htons(p
- sendbuf
);
2276 lsupdate
->lsa_number
= htonl(lsa_cnt
);
2278 ospf6_send_lsupdate(NULL
, oi
, oh
);
2281 if (oi
->lsupdate_list
->count
> 0) {
2282 oi
->thread_send_lsupdate
= NULL
;
2283 thread_add_event(master
, ospf6_lsupdate_send_interface
, oi
, 0,
2284 &oi
->thread_send_lsupdate
);
2290 int ospf6_lsack_send_neighbor(struct thread
*thread
)
2292 struct ospf6_neighbor
*on
;
2293 struct ospf6_header
*oh
;
2295 struct ospf6_lsa
*lsa
;
2298 on
= (struct ospf6_neighbor
*)THREAD_ARG(thread
);
2299 on
->thread_send_lsack
= (struct thread
*)NULL
;
2301 if (on
->state
< OSPF6_NEIGHBOR_EXCHANGE
) {
2302 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSACK
, SEND
))
2303 zlog_debug("Quit to send LSAck to neighbor %s state %s",
2305 ospf6_neighbor_state_str
[on
->state
]);
2309 /* if we have nothing to send, return */
2310 if (on
->lsack_list
->count
== 0)
2313 memset(sendbuf
, 0, iobuflen
);
2314 oh
= (struct ospf6_header
*)sendbuf
;
2316 p
= (uint8_t *)((caddr_t
)oh
+ sizeof(struct ospf6_header
));
2318 for (ALL_LSDB(on
->lsack_list
, lsa
)) {
2320 if (p
- sendbuf
+ sizeof(struct ospf6_lsa_header
)
2321 > ospf6_packet_max(on
->ospf6_if
)) {
2322 /* if we run out of packet size/space here,
2323 better to try again soon. */
2325 oh
->type
= OSPF6_MESSAGE_TYPE_LSACK
;
2326 oh
->length
= htons(p
- sendbuf
);
2328 on
->ospf6_if
->ls_ack_out
++;
2330 ospf6_send(on
->ospf6_if
->linklocal_addr
,
2331 &on
->linklocal_addr
, on
->ospf6_if
,
2334 memset(sendbuf
, 0, iobuflen
);
2335 oh
= (struct ospf6_header
*)sendbuf
;
2336 p
= (uint8_t *)((caddr_t
)oh
2337 + sizeof(struct ospf6_header
));
2342 ospf6_lsa_age_update_to_send(lsa
, on
->ospf6_if
->transdelay
);
2343 memcpy(p
, lsa
->header
, sizeof(struct ospf6_lsa_header
));
2344 p
+= sizeof(struct ospf6_lsa_header
);
2346 assert(lsa
->lock
== 2);
2347 ospf6_lsdb_remove(lsa
, on
->lsack_list
);
2352 oh
->type
= OSPF6_MESSAGE_TYPE_LSACK
;
2353 oh
->length
= htons(p
- sendbuf
);
2355 on
->ospf6_if
->ls_ack_out
++;
2357 ospf6_send(on
->ospf6_if
->linklocal_addr
, &on
->linklocal_addr
,
2361 if (on
->lsack_list
->count
> 0)
2362 thread_add_event(master
, ospf6_lsack_send_neighbor
, on
, 0,
2363 &on
->thread_send_lsack
);
2368 int ospf6_lsack_send_interface(struct thread
*thread
)
2370 struct ospf6_interface
*oi
;
2371 struct ospf6_header
*oh
;
2373 struct ospf6_lsa
*lsa
;
2376 oi
= (struct ospf6_interface
*)THREAD_ARG(thread
);
2377 oi
->thread_send_lsack
= (struct thread
*)NULL
;
2379 if (oi
->state
<= OSPF6_INTERFACE_WAITING
) {
2380 if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSACK
, SEND
))
2382 "Quit to send LSAck to interface %s state %s",
2383 oi
->interface
->name
,
2384 ospf6_interface_state_str
[oi
->state
]);
2388 /* if we have nothing to send, return */
2389 if (oi
->lsack_list
->count
== 0)
2392 memset(sendbuf
, 0, iobuflen
);
2393 oh
= (struct ospf6_header
*)sendbuf
;
2395 p
= (uint8_t *)((caddr_t
)oh
+ sizeof(struct ospf6_header
));
2397 for (ALL_LSDB(oi
->lsack_list
, lsa
)) {
2399 if (p
- sendbuf
+ sizeof(struct ospf6_lsa_header
)
2400 > ospf6_packet_max(oi
)) {
2401 /* if we run out of packet size/space here,
2402 better to try again soon. */
2403 THREAD_OFF(oi
->thread_send_lsack
);
2404 thread_add_event(master
, ospf6_lsack_send_interface
, oi
,
2405 0, &oi
->thread_send_lsack
);
2407 ospf6_lsdb_lsa_unlock(lsa
);
2411 ospf6_lsa_age_update_to_send(lsa
, oi
->transdelay
);
2412 memcpy(p
, lsa
->header
, sizeof(struct ospf6_lsa_header
));
2413 p
+= sizeof(struct ospf6_lsa_header
);
2415 assert(lsa
->lock
== 2);
2416 ospf6_lsdb_remove(lsa
, oi
->lsack_list
);
2421 oh
->type
= OSPF6_MESSAGE_TYPE_LSACK
;
2422 oh
->length
= htons(p
- sendbuf
);
2424 if ((oi
->state
== OSPF6_INTERFACE_POINTTOPOINT
)
2425 || (oi
->state
== OSPF6_INTERFACE_DR
)
2426 || (oi
->state
== OSPF6_INTERFACE_BDR
))
2427 ospf6_send(oi
->linklocal_addr
, &allspfrouters6
, oi
, oh
);
2429 ospf6_send(oi
->linklocal_addr
, &alldrouters6
, oi
, oh
);
2432 if (oi
->lsack_list
->count
> 0)
2433 thread_add_event(master
, ospf6_lsack_send_interface
, oi
, 0,
2434 &oi
->thread_send_lsack
);
2441 DEFUN (debug_ospf6_message
,
2442 debug_ospf6_message_cmd
,
2443 "debug ospf6 message <unknown|hello|dbdesc|lsreq|lsupdate|lsack|all> [<send|recv>]",
2446 "Debug OSPFv3 message\n"
2447 "Debug Unknown message\n"
2448 "Debug Hello message\n"
2449 "Debug Database Description message\n"
2450 "Debug Link State Request message\n"
2451 "Debug Link State Update message\n"
2452 "Debug Link State Acknowledgement message\n"
2453 "Debug All message\n"
2454 "Debug only sending message\n"
2455 "Debug only receiving message\n")
2458 int idx_send_recv
= 4;
2459 unsigned char level
= 0;
2464 if (!strncmp(argv
[idx_packet
]->arg
, "u", 1))
2465 type
= OSPF6_MESSAGE_TYPE_UNKNOWN
;
2466 else if (!strncmp(argv
[idx_packet
]->arg
, "h", 1))
2467 type
= OSPF6_MESSAGE_TYPE_HELLO
;
2468 else if (!strncmp(argv
[idx_packet
]->arg
, "d", 1))
2469 type
= OSPF6_MESSAGE_TYPE_DBDESC
;
2470 else if (!strncmp(argv
[idx_packet
]->arg
, "lsr", 3))
2471 type
= OSPF6_MESSAGE_TYPE_LSREQ
;
2472 else if (!strncmp(argv
[idx_packet
]->arg
, "lsu", 3))
2473 type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2474 else if (!strncmp(argv
[idx_packet
]->arg
, "lsa", 3))
2475 type
= OSPF6_MESSAGE_TYPE_LSACK
;
2476 else if (!strncmp(argv
[idx_packet
]->arg
, "a", 1))
2477 type
= OSPF6_MESSAGE_TYPE_ALL
;
2480 level
= OSPF6_DEBUG_MESSAGE_SEND
| OSPF6_DEBUG_MESSAGE_RECV
;
2481 else if (!strncmp(argv
[idx_send_recv
]->arg
, "s", 1))
2482 level
= OSPF6_DEBUG_MESSAGE_SEND
;
2483 else if (!strncmp(argv
[idx_send_recv
]->arg
, "r", 1))
2484 level
= OSPF6_DEBUG_MESSAGE_RECV
;
2486 if (type
== OSPF6_MESSAGE_TYPE_ALL
) {
2487 for (i
= 0; i
< 6; i
++)
2488 OSPF6_DEBUG_MESSAGE_ON(i
, level
);
2490 OSPF6_DEBUG_MESSAGE_ON(type
, level
);
2495 DEFUN (no_debug_ospf6_message
,
2496 no_debug_ospf6_message_cmd
,
2497 "no debug ospf6 message <unknown|hello|dbdesc|lsreq|lsupdate|lsack|all> [<send|recv>]",
2501 "Debug OSPFv3 message\n"
2502 "Debug Unknown message\n"
2503 "Debug Hello message\n"
2504 "Debug Database Description message\n"
2505 "Debug Link State Request message\n"
2506 "Debug Link State Update message\n"
2507 "Debug Link State Acknowledgement message\n"
2508 "Debug All message\n"
2509 "Debug only sending message\n"
2510 "Debug only receiving message\n")
2513 int idx_send_recv
= 5;
2514 unsigned char level
= 0;
2519 if (!strncmp(argv
[idx_packet
]->arg
, "u", 1))
2520 type
= OSPF6_MESSAGE_TYPE_UNKNOWN
;
2521 else if (!strncmp(argv
[idx_packet
]->arg
, "h", 1))
2522 type
= OSPF6_MESSAGE_TYPE_HELLO
;
2523 else if (!strncmp(argv
[idx_packet
]->arg
, "d", 1))
2524 type
= OSPF6_MESSAGE_TYPE_DBDESC
;
2525 else if (!strncmp(argv
[idx_packet
]->arg
, "lsr", 3))
2526 type
= OSPF6_MESSAGE_TYPE_LSREQ
;
2527 else if (!strncmp(argv
[idx_packet
]->arg
, "lsu", 3))
2528 type
= OSPF6_MESSAGE_TYPE_LSUPDATE
;
2529 else if (!strncmp(argv
[idx_packet
]->arg
, "lsa", 3))
2530 type
= OSPF6_MESSAGE_TYPE_LSACK
;
2531 else if (!strncmp(argv
[idx_packet
]->arg
, "a", 1))
2532 type
= OSPF6_MESSAGE_TYPE_ALL
;
2535 level
= OSPF6_DEBUG_MESSAGE_SEND
| OSPF6_DEBUG_MESSAGE_RECV
;
2536 else if (!strncmp(argv
[idx_send_recv
]->arg
, "s", 1))
2537 level
= OSPF6_DEBUG_MESSAGE_SEND
;
2538 else if (!strncmp(argv
[idx_send_recv
]->arg
, "r", 1))
2539 level
= OSPF6_DEBUG_MESSAGE_RECV
;
2541 if (type
== OSPF6_MESSAGE_TYPE_ALL
) {
2542 for (i
= 0; i
< 6; i
++)
2543 OSPF6_DEBUG_MESSAGE_OFF(i
, level
);
2545 OSPF6_DEBUG_MESSAGE_OFF(type
, level
);
2551 int config_write_ospf6_debug_message(struct vty
*vty
)
2553 const char *type_str
[] = {"unknown", "hello", "dbdesc",
2554 "lsreq", "lsupdate", "lsack"};
2555 unsigned char s
= 0, r
= 0;
2558 for (i
= 0; i
< 6; i
++) {
2559 if (IS_OSPF6_DEBUG_MESSAGE(i
, SEND
))
2561 if (IS_OSPF6_DEBUG_MESSAGE(i
, RECV
))
2565 if (s
== 0x3f && r
== 0x3f) {
2566 vty_out(vty
, "debug ospf6 message all\n");
2570 if (s
== 0x3f && r
== 0) {
2571 vty_out(vty
, "debug ospf6 message all send\n");
2573 } else if (s
== 0 && r
== 0x3f) {
2574 vty_out(vty
, "debug ospf6 message all recv\n");
2578 /* Unknown message is logged by default */
2579 if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, SEND
)
2580 && !IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
2581 vty_out(vty
, "no debug ospf6 message unknown\n");
2582 else if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, SEND
))
2583 vty_out(vty
, "no debug ospf6 message unknown send\n");
2584 else if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN
, RECV
))
2585 vty_out(vty
, "no debug ospf6 message unknown recv\n");
2587 for (i
= 1; i
< 6; i
++) {
2588 if (IS_OSPF6_DEBUG_MESSAGE(i
, SEND
)
2589 && IS_OSPF6_DEBUG_MESSAGE(i
, RECV
))
2590 vty_out(vty
, "debug ospf6 message %s\n", type_str
[i
]);
2591 else if (IS_OSPF6_DEBUG_MESSAGE(i
, SEND
))
2592 vty_out(vty
, "debug ospf6 message %s send\n",
2594 else if (IS_OSPF6_DEBUG_MESSAGE(i
, RECV
))
2595 vty_out(vty
, "debug ospf6 message %s recv\n",
2602 void install_element_ospf6_debug_message(void)
2604 install_element(ENABLE_NODE
, &debug_ospf6_message_cmd
);
2605 install_element(ENABLE_NODE
, &no_debug_ospf6_message_cmd
);
2606 install_element(CONFIG_NODE
, &debug_ospf6_message_cmd
);
2607 install_element(CONFIG_NODE
, &no_debug_ospf6_message_cmd
);