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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 | * | |
896014f4 DL |
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 | |
718e3744 | 19 | */ |
20 | ||
508e53e2 | 21 | #include <zebra.h> |
22 | ||
3b4cd3a9 | 23 | #include "memory.h" |
508e53e2 | 24 | #include "log.h" |
25 | #include "vty.h" | |
26 | #include "command.h" | |
27 | #include "thread.h" | |
28 | #include "linklist.h" | |
4ba03be5 | 29 | #include "lib_errors.h" |
508e53e2 | 30 | |
508e53e2 | 31 | #include "ospf6_proto.h" |
32 | #include "ospf6_lsa.h" | |
33 | #include "ospf6_lsdb.h" | |
c527acf1 | 34 | #include "ospf6_top.h" |
508e53e2 | 35 | #include "ospf6_network.h" |
36 | #include "ospf6_message.h" | |
718e3744 | 37 | |
508e53e2 | 38 | #include "ospf6_area.h" |
39 | #include "ospf6_neighbor.h" | |
40 | #include "ospf6_interface.h" | |
718e3744 | 41 | |
abc7ef44 DO |
42 | /* for structures and macros ospf6_lsa_examin() needs */ |
43 | #include "ospf6_abr.h" | |
44 | #include "ospf6_asbr.h" | |
45 | #include "ospf6_intra.h" | |
46 | ||
508e53e2 | 47 | #include "ospf6_flood.h" |
049207c3 | 48 | #include "ospf6d.h" |
718e3744 | 49 | |
681b84e8 DT |
50 | #include <netinet/ip6.h> |
51 | ||
30043e4c DL |
52 | DEFINE_MTYPE_STATIC(OSPF6D, OSPF6_MESSAGE, "OSPF6 message"); |
53 | ||
508e53e2 | 54 | unsigned char conf_debug_ospf6_message[6] = {0x03, 0, 0, 0, 0, 0}; |
d62a17ae | 55 | static const struct message ospf6_message_type_str[] = { |
56 | {OSPF6_MESSAGE_TYPE_HELLO, "Hello"}, | |
57 | {OSPF6_MESSAGE_TYPE_DBDESC, "DbDesc"}, | |
58 | {OSPF6_MESSAGE_TYPE_LSREQ, "LSReq"}, | |
59 | {OSPF6_MESSAGE_TYPE_LSUPDATE, "LSUpdate"}, | |
60 | {OSPF6_MESSAGE_TYPE_LSACK, "LSAck"}, | |
61 | {0}}; | |
718e3744 | 62 | |
abc7ef44 DO |
63 | /* Minimum (besides the standard OSPF packet header) lengths for OSPF |
64 | packets of particular types, offset is the "type" field. */ | |
d7c0a89a | 65 | const uint16_t ospf6_packet_minlen[OSPF6_MESSAGE_TYPE_ALL] = { |
d62a17ae | 66 | 0, |
67 | OSPF6_HELLO_MIN_SIZE, | |
68 | OSPF6_DB_DESC_MIN_SIZE, | |
69 | OSPF6_LS_REQ_MIN_SIZE, | |
70 | OSPF6_LS_UPD_MIN_SIZE, | |
71 | OSPF6_LS_ACK_MIN_SIZE}; | |
abc7ef44 DO |
72 | |
73 | /* Minimum (besides the standard LSA header) lengths for LSAs of particular | |
74 | types, offset is the "LSA function code" portion of "LSA type" field. */ | |
d7c0a89a | 75 | const uint16_t ospf6_lsa_minlen[OSPF6_LSTYPE_SIZE] = { |
d62a17ae | 76 | 0, |
77 | /* 0x2001 */ OSPF6_ROUTER_LSA_MIN_SIZE, | |
78 | /* 0x2002 */ OSPF6_NETWORK_LSA_MIN_SIZE, | |
79 | /* 0x2003 */ OSPF6_INTER_PREFIX_LSA_MIN_SIZE, | |
80 | /* 0x2004 */ OSPF6_INTER_ROUTER_LSA_FIX_SIZE, | |
81 | /* 0x4005 */ OSPF6_AS_EXTERNAL_LSA_MIN_SIZE, | |
82 | /* 0x2006 */ 0, | |
83 | /* 0x2007 */ OSPF6_AS_EXTERNAL_LSA_MIN_SIZE, | |
84 | /* 0x0008 */ OSPF6_LINK_LSA_MIN_SIZE, | |
85 | /* 0x2009 */ OSPF6_INTRA_PREFIX_LSA_MIN_SIZE}; | |
abc7ef44 | 86 | |
508e53e2 | 87 | /* print functions */ |
718e3744 | 88 | |
d62a17ae | 89 | static void ospf6_header_print(struct ospf6_header *oh) |
718e3744 | 90 | { |
d47b448d DS |
91 | zlog_debug(" OSPFv%d Type:%d Len:%hu Router-ID:%pI4", oh->version, |
92 | oh->type, ntohs(oh->length), &oh->router_id); | |
93 | zlog_debug(" Area-ID:%pI4 Cksum:%hx Instance-ID:%d", &oh->area_id, | |
d62a17ae | 94 | ntohs(oh->checksum), oh->instance_id); |
718e3744 | 95 | } |
96 | ||
f44d0f5e | 97 | void ospf6_hello_print(struct ospf6_header *oh, int action) |
718e3744 | 98 | { |
d62a17ae | 99 | struct ospf6_hello *hello; |
100 | char options[16]; | |
d62a17ae | 101 | char *p; |
102 | ||
103 | ospf6_header_print(oh); | |
104 | assert(oh->type == OSPF6_MESSAGE_TYPE_HELLO); | |
105 | ||
106 | hello = (struct ospf6_hello *)((caddr_t)oh | |
107 | + sizeof(struct ospf6_header)); | |
108 | ||
d62a17ae | 109 | ospf6_options_printbuf(hello->options, options, sizeof(options)); |
110 | ||
111 | zlog_debug(" I/F-Id:%ld Priority:%d Option:%s", | |
d7c0a89a | 112 | (unsigned long)ntohl(hello->interface_id), hello->priority, |
d62a17ae | 113 | options); |
114 | zlog_debug(" HelloInterval:%hu DeadInterval:%hu", | |
115 | ntohs(hello->hello_interval), ntohs(hello->dead_interval)); | |
d47b448d | 116 | zlog_debug(" DR:%pI4 BDR:%pI4", &hello->drouter, &hello->bdrouter); |
d62a17ae | 117 | |
f44d0f5e | 118 | if ((IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV) |
119 | && action == OSPF6_ACTION_RECV) | |
120 | || (IS_OSPF6_DEBUG_MESSAGE(oh->type, SEND) | |
121 | && action == OSPF6_ACTION_SEND)) { | |
d62a17ae | 122 | |
f44d0f5e | 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 | zlog_debug(" Neighbor: %pI4", (in_addr_t *)p); | |
127 | ||
128 | assert(p == OSPF6_MESSAGE_END(oh)); | |
129 | } | |
718e3744 | 130 | } |
131 | ||
f44d0f5e | 132 | void ospf6_dbdesc_print(struct ospf6_header *oh, int action) |
718e3744 | 133 | { |
d62a17ae | 134 | struct ospf6_dbdesc *dbdesc; |
135 | char options[16]; | |
136 | char *p; | |
508e53e2 | 137 | |
d62a17ae | 138 | ospf6_header_print(oh); |
139 | assert(oh->type == OSPF6_MESSAGE_TYPE_DBDESC); | |
508e53e2 | 140 | |
d62a17ae | 141 | dbdesc = (struct ospf6_dbdesc *)((caddr_t)oh |
142 | + sizeof(struct ospf6_header)); | |
508e53e2 | 143 | |
d62a17ae | 144 | ospf6_options_printbuf(dbdesc->options, options, sizeof(options)); |
508e53e2 | 145 | |
d62a17ae | 146 | zlog_debug(" MBZ: %#x Option: %s IfMTU: %hu", dbdesc->reserved1, |
147 | options, ntohs(dbdesc->ifmtu)); | |
148 | zlog_debug(" MBZ: %#x Bits: %s%s%s SeqNum: %#lx", dbdesc->reserved2, | |
149 | (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT) ? "I" : "-"), | |
150 | (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MBIT) ? "M" : "-"), | |
151 | (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT) ? "m" : "s"), | |
d7c0a89a | 152 | (unsigned long)ntohl(dbdesc->seqnum)); |
508e53e2 | 153 | |
f44d0f5e | 154 | if ((IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV) |
155 | && action == OSPF6_ACTION_RECV) | |
156 | || (IS_OSPF6_DEBUG_MESSAGE(oh->type, SEND) | |
157 | && action == OSPF6_ACTION_SEND)) { | |
508e53e2 | 158 | |
f44d0f5e | 159 | for (p = (char *)((caddr_t)dbdesc |
160 | + sizeof(struct ospf6_dbdesc)); | |
161 | p + sizeof(struct ospf6_lsa_header) | |
162 | <= OSPF6_MESSAGE_END(oh); | |
163 | p += sizeof(struct ospf6_lsa_header)) | |
164 | ospf6_lsa_header_print_raw( | |
165 | (struct ospf6_lsa_header *)p); | |
166 | ||
167 | assert(p == OSPF6_MESSAGE_END(oh)); | |
168 | } | |
718e3744 | 169 | } |
170 | ||
f44d0f5e | 171 | void ospf6_lsreq_print(struct ospf6_header *oh, int action) |
718e3744 | 172 | { |
d62a17ae | 173 | char *p; |
174 | ||
175 | ospf6_header_print(oh); | |
176 | assert(oh->type == OSPF6_MESSAGE_TYPE_LSREQ); | |
177 | ||
f44d0f5e | 178 | if ((IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV) |
179 | && action == OSPF6_ACTION_RECV) | |
180 | || (IS_OSPF6_DEBUG_MESSAGE(oh->type, SEND) | |
181 | && action == OSPF6_ACTION_SEND)) { | |
182 | ||
183 | for (p = (char *)((caddr_t)oh + sizeof(struct ospf6_header)); | |
184 | p + sizeof(struct ospf6_lsreq_entry) | |
185 | <= OSPF6_MESSAGE_END(oh); | |
186 | p += sizeof(struct ospf6_lsreq_entry)) { | |
187 | struct ospf6_lsreq_entry *e = | |
188 | (struct ospf6_lsreq_entry *)p; | |
189 | ||
190 | zlog_debug(" [%s Id:%pI4 Adv:%pI4]", | |
191 | ospf6_lstype_name(e->type), &e->id, | |
192 | &e->adv_router); | |
193 | } | |
d47b448d | 194 | |
f44d0f5e | 195 | assert(p == OSPF6_MESSAGE_END(oh)); |
d62a17ae | 196 | } |
718e3744 | 197 | } |
198 | ||
f44d0f5e | 199 | void ospf6_lsupdate_print(struct ospf6_header *oh, int action) |
718e3744 | 200 | { |
d62a17ae | 201 | struct ospf6_lsupdate *lsupdate; |
d7c0a89a | 202 | unsigned long num; |
d62a17ae | 203 | char *p; |
718e3744 | 204 | |
d62a17ae | 205 | ospf6_header_print(oh); |
206 | assert(oh->type == OSPF6_MESSAGE_TYPE_LSUPDATE); | |
718e3744 | 207 | |
d62a17ae | 208 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh |
209 | + sizeof(struct ospf6_header)); | |
718e3744 | 210 | |
d62a17ae | 211 | num = ntohl(lsupdate->lsa_number); |
212 | zlog_debug(" Number of LSA: %ld", num); | |
718e3744 | 213 | |
f44d0f5e | 214 | if ((IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV) |
215 | && action == OSPF6_ACTION_RECV) | |
216 | || (IS_OSPF6_DEBUG_MESSAGE(oh->type, SEND) | |
217 | && action == OSPF6_ACTION_SEND)) { | |
218 | ||
219 | for (p = (char *)((caddr_t)lsupdate | |
220 | + sizeof(struct ospf6_lsupdate)); | |
221 | p < OSPF6_MESSAGE_END(oh) | |
222 | && p + OSPF6_LSA_SIZE(p) <= OSPF6_MESSAGE_END(oh); | |
223 | p += OSPF6_LSA_SIZE(p)) { | |
224 | ospf6_lsa_header_print_raw( | |
225 | (struct ospf6_lsa_header *)p); | |
226 | } | |
718e3744 | 227 | |
f44d0f5e | 228 | assert(p == OSPF6_MESSAGE_END(oh)); |
229 | } | |
718e3744 | 230 | } |
231 | ||
f44d0f5e | 232 | void ospf6_lsack_print(struct ospf6_header *oh, int action) |
718e3744 | 233 | { |
d62a17ae | 234 | char *p; |
718e3744 | 235 | |
d62a17ae | 236 | ospf6_header_print(oh); |
237 | assert(oh->type == OSPF6_MESSAGE_TYPE_LSACK); | |
718e3744 | 238 | |
f44d0f5e | 239 | if ((IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV) |
240 | && action == OSPF6_ACTION_RECV) | |
241 | || (IS_OSPF6_DEBUG_MESSAGE(oh->type, SEND) | |
242 | && action == OSPF6_ACTION_SEND)) { | |
508e53e2 | 243 | |
f44d0f5e | 244 | for (p = (char *)((caddr_t)oh + sizeof(struct ospf6_header)); |
245 | p + sizeof(struct ospf6_lsa_header) | |
246 | <= OSPF6_MESSAGE_END(oh); | |
247 | p += sizeof(struct ospf6_lsa_header)) | |
248 | ospf6_lsa_header_print_raw( | |
249 | (struct ospf6_lsa_header *)p); | |
250 | ||
251 | assert(p == OSPF6_MESSAGE_END(oh)); | |
252 | } | |
718e3744 | 253 | } |
254 | ||
d62a17ae | 255 | static void ospf6_hello_recv(struct in6_addr *src, struct in6_addr *dst, |
256 | struct ospf6_interface *oi, | |
257 | struct ospf6_header *oh) | |
718e3744 | 258 | { |
d62a17ae | 259 | struct ospf6_hello *hello; |
260 | struct ospf6_neighbor *on; | |
261 | char *p; | |
262 | int twoway = 0; | |
263 | int neighborchange = 0; | |
264 | int neighbor_ifindex_change = 0; | |
265 | int backupseen = 0; | |
266 | ||
267 | hello = (struct ospf6_hello *)((caddr_t)oh | |
268 | + sizeof(struct ospf6_header)); | |
269 | ||
270 | /* HelloInterval check */ | |
271 | if (ntohs(hello->hello_interval) != oi->hello_interval) { | |
ff99e5b6 | 272 | zlog_warn( |
273 | "VRF %s: I/F %s HelloInterval mismatch: (my %d, rcvd %d)", | |
274 | vrf_id_to_name(oi->interface->vrf_id), | |
275 | oi->interface->name, oi->hello_interval, | |
276 | ntohs(hello->hello_interval)); | |
d62a17ae | 277 | return; |
278 | } | |
279 | ||
280 | /* RouterDeadInterval check */ | |
281 | if (ntohs(hello->dead_interval) != oi->dead_interval) { | |
ff99e5b6 | 282 | zlog_warn( |
283 | "VRF %s: I/F %s DeadInterval mismatch: (my %d, rcvd %d)", | |
284 | vrf_id_to_name(oi->interface->vrf_id), | |
285 | oi->interface->name, oi->dead_interval, | |
286 | ntohs(hello->dead_interval)); | |
d62a17ae | 287 | return; |
288 | } | |
289 | ||
290 | /* E-bit check */ | |
291 | if (OSPF6_OPT_ISSET(hello->options, OSPF6_OPT_E) | |
292 | != OSPF6_OPT_ISSET(oi->area->options, OSPF6_OPT_E)) { | |
ff99e5b6 | 293 | zlog_warn("VRF %s: IF %s E-bit mismatch", |
294 | vrf_id_to_name(oi->interface->vrf_id), | |
295 | oi->interface->name); | |
d62a17ae | 296 | return; |
297 | } | |
298 | ||
299 | /* Find neighbor, create if not exist */ | |
300 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
301 | if (on == NULL) { | |
302 | on = ospf6_neighbor_create(oh->router_id, oi); | |
303 | on->prev_drouter = on->drouter = hello->drouter; | |
304 | on->prev_bdrouter = on->bdrouter = hello->bdrouter; | |
305 | on->priority = hello->priority; | |
306 | } | |
307 | ||
308 | /* Always override neighbor's source address */ | |
309 | memcpy(&on->linklocal_addr, src, sizeof(struct in6_addr)); | |
310 | ||
311 | /* Neighbor ifindex check */ | |
312 | if (on->ifindex != (ifindex_t)ntohl(hello->interface_id)) { | |
313 | on->ifindex = ntohl(hello->interface_id); | |
314 | neighbor_ifindex_change++; | |
315 | } | |
316 | ||
317 | /* TwoWay check */ | |
318 | for (p = (char *)((caddr_t)hello + sizeof(struct ospf6_hello)); | |
d7c0a89a QY |
319 | p + sizeof(uint32_t) <= OSPF6_MESSAGE_END(oh); |
320 | p += sizeof(uint32_t)) { | |
321 | uint32_t *router_id = (uint32_t *)p; | |
d62a17ae | 322 | |
323 | if (*router_id == oi->area->ospf6->router_id) | |
324 | twoway++; | |
325 | } | |
326 | ||
327 | assert(p == OSPF6_MESSAGE_END(oh)); | |
328 | ||
329 | /* RouterPriority check */ | |
330 | if (on->priority != hello->priority) { | |
331 | on->priority = hello->priority; | |
332 | neighborchange++; | |
333 | } | |
334 | ||
335 | /* DR check */ | |
336 | if (on->drouter != hello->drouter) { | |
337 | on->prev_drouter = on->drouter; | |
338 | on->drouter = hello->drouter; | |
339 | if (on->prev_drouter == on->router_id | |
340 | || on->drouter == on->router_id) | |
341 | neighborchange++; | |
342 | } | |
343 | ||
344 | /* BDR check */ | |
345 | if (on->bdrouter != hello->bdrouter) { | |
346 | on->prev_bdrouter = on->bdrouter; | |
347 | on->bdrouter = hello->bdrouter; | |
348 | if (on->prev_bdrouter == on->router_id | |
349 | || on->bdrouter == on->router_id) | |
350 | neighborchange++; | |
351 | } | |
352 | ||
353 | /* BackupSeen check */ | |
354 | if (oi->state == OSPF6_INTERFACE_WAITING) { | |
355 | if (hello->bdrouter == on->router_id) | |
356 | backupseen++; | |
357 | else if (hello->drouter == on->router_id | |
358 | && hello->bdrouter == htonl(0)) | |
359 | backupseen++; | |
360 | } | |
361 | ||
43855e3d CS |
362 | oi->hello_in++; |
363 | ||
d62a17ae | 364 | /* Execute neighbor events */ |
365 | thread_execute(master, hello_received, on, 0); | |
366 | if (twoway) | |
367 | thread_execute(master, twoway_received, on, 0); | |
368 | else | |
369 | thread_execute(master, oneway_received, on, 0); | |
370 | ||
371 | /* Schedule interface events */ | |
372 | if (backupseen) | |
373 | thread_add_event(master, backup_seen, oi, 0, NULL); | |
374 | if (neighborchange) | |
375 | thread_add_event(master, neighbor_change, oi, 0, NULL); | |
376 | ||
377 | if (neighbor_ifindex_change && on->state == OSPF6_NEIGHBOR_FULL) | |
378 | OSPF6_ROUTER_LSA_SCHEDULE(oi->area); | |
718e3744 | 379 | } |
380 | ||
d62a17ae | 381 | static void ospf6_dbdesc_recv_master(struct ospf6_header *oh, |
382 | struct ospf6_neighbor *on) | |
718e3744 | 383 | { |
d62a17ae | 384 | struct ospf6_dbdesc *dbdesc; |
385 | char *p; | |
386 | ||
387 | dbdesc = (struct ospf6_dbdesc *)((caddr_t)oh | |
388 | + sizeof(struct ospf6_header)); | |
389 | ||
390 | if (on->state < OSPF6_NEIGHBOR_INIT) { | |
f44d0f5e | 391 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 392 | zlog_debug("Neighbor state less than Init, ignore"); |
393 | return; | |
394 | } | |
395 | ||
396 | switch (on->state) { | |
397 | case OSPF6_NEIGHBOR_TWOWAY: | |
f44d0f5e | 398 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 399 | zlog_debug("Neighbor state is 2-Way, ignore"); |
400 | return; | |
401 | ||
402 | case OSPF6_NEIGHBOR_INIT: | |
403 | thread_execute(master, twoway_received, on, 0); | |
404 | if (on->state != OSPF6_NEIGHBOR_EXSTART) { | |
f44d0f5e | 405 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 406 | zlog_debug( |
407 | "Neighbor state is not ExStart, ignore"); | |
408 | return; | |
409 | } | |
410 | /* else fall through to ExStart */ | |
411 | /* fallthru */ | |
412 | case OSPF6_NEIGHBOR_EXSTART: | |
413 | /* if neighbor obeys us as our slave, schedule negotiation_done | |
414 | and process LSA Headers. Otherwise, ignore this message */ | |
415 | if (!CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT) | |
416 | && !CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT) | |
417 | && ntohl(dbdesc->seqnum) == on->dbdesc_seqnum) { | |
418 | /* execute NegotiationDone */ | |
419 | thread_execute(master, negotiation_done, on, 0); | |
420 | ||
421 | /* Record neighbor options */ | |
422 | memcpy(on->options, dbdesc->options, | |
423 | sizeof(on->options)); | |
424 | } else { | |
ff99e5b6 | 425 | zlog_warn( |
426 | "VRF %s: Nbr %s: Negotiation failed", | |
427 | vrf_id_to_name(on->ospf6_if->interface->vrf_id), | |
428 | on->name); | |
d62a17ae | 429 | return; |
430 | } | |
431 | /* fall through to exchange */ | |
432 | ||
433 | case OSPF6_NEIGHBOR_EXCHANGE: | |
434 | if (!memcmp(dbdesc, &on->dbdesc_last, | |
435 | sizeof(struct ospf6_dbdesc))) { | |
436 | /* Duplicated DatabaseDescription is dropped by master | |
437 | */ | |
f44d0f5e | 438 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 439 | zlog_debug( |
440 | "Duplicated dbdesc discarded by Master, ignore"); | |
441 | return; | |
442 | } | |
443 | ||
444 | if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT)) { | |
f44d0f5e | 445 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 446 | zlog_debug("Master/Slave bit mismatch"); |
447 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
448 | NULL); | |
449 | return; | |
450 | } | |
451 | ||
452 | if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT)) { | |
f44d0f5e | 453 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 454 | zlog_debug("Initialize bit mismatch"); |
455 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
456 | NULL); | |
457 | return; | |
458 | } | |
459 | ||
460 | if (memcmp(on->options, dbdesc->options, sizeof(on->options))) { | |
f44d0f5e | 461 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 462 | zlog_debug("Option field mismatch"); |
463 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
464 | NULL); | |
465 | return; | |
466 | } | |
467 | ||
468 | if (ntohl(dbdesc->seqnum) != on->dbdesc_seqnum) { | |
f44d0f5e | 469 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 470 | zlog_debug( |
471 | "Sequence number mismatch (%#lx expected)", | |
d7c0a89a | 472 | (unsigned long)on->dbdesc_seqnum); |
d62a17ae | 473 | thread_add_event(master, seqnumber_mismatch, on, 0, |
474 | NULL); | |
475 | return; | |
476 | } | |
477 | break; | |
478 | ||
479 | case OSPF6_NEIGHBOR_LOADING: | |
480 | case OSPF6_NEIGHBOR_FULL: | |
481 | if (!memcmp(dbdesc, &on->dbdesc_last, | |
482 | sizeof(struct ospf6_dbdesc))) { | |
483 | /* Duplicated DatabaseDescription is dropped by master | |
484 | */ | |
f44d0f5e | 485 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 486 | zlog_debug( |
487 | "Duplicated dbdesc discarded by Master, ignore"); | |
488 | return; | |
489 | } | |
490 | ||
f44d0f5e | 491 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 492 | zlog_debug("Not duplicate dbdesc in state %s", |
493 | ospf6_neighbor_state_str[on->state]); | |
494 | thread_add_event(master, seqnumber_mismatch, on, 0, NULL); | |
495 | return; | |
496 | ||
497 | default: | |
498 | assert(0); | |
499 | break; | |
500 | } | |
501 | ||
502 | /* Process LSA headers */ | |
503 | for (p = (char *)((caddr_t)dbdesc + sizeof(struct ospf6_dbdesc)); | |
504 | p + sizeof(struct ospf6_lsa_header) <= OSPF6_MESSAGE_END(oh); | |
505 | p += sizeof(struct ospf6_lsa_header)) { | |
506 | struct ospf6_lsa *his, *mine; | |
507 | struct ospf6_lsdb *lsdb = NULL; | |
508 | ||
509 | his = ospf6_lsa_create_headeronly((struct ospf6_lsa_header *)p); | |
510 | ||
511 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
512 | zlog_debug("%s", his->name); | |
513 | ||
514 | switch (OSPF6_LSA_SCOPE(his->header->type)) { | |
515 | case OSPF6_SCOPE_LINKLOCAL: | |
516 | lsdb = on->ospf6_if->lsdb; | |
517 | break; | |
518 | case OSPF6_SCOPE_AREA: | |
519 | lsdb = on->ospf6_if->area->lsdb; | |
520 | break; | |
521 | case OSPF6_SCOPE_AS: | |
522 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
523 | break; | |
524 | case OSPF6_SCOPE_RESERVED: | |
525 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
526 | zlog_debug("Ignoring LSA of reserved scope"); | |
527 | ospf6_lsa_delete(his); | |
528 | continue; | |
529 | break; | |
530 | } | |
531 | ||
532 | if (ntohs(his->header->type) == OSPF6_LSTYPE_AS_EXTERNAL | |
533 | && IS_AREA_STUB(on->ospf6_if->area)) { | |
534 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
535 | zlog_debug( | |
536 | "SeqNumMismatch (E-bit mismatch), discard"); | |
537 | ospf6_lsa_delete(his); | |
538 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
539 | NULL); | |
540 | return; | |
541 | } | |
542 | ||
543 | mine = ospf6_lsdb_lookup(his->header->type, his->header->id, | |
544 | his->header->adv_router, lsdb); | |
545 | if (mine == NULL) { | |
546 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
547 | zlog_debug("Add request (No database copy)"); | |
548 | ospf6_lsdb_add(ospf6_lsa_copy(his), on->request_list); | |
549 | } else if (ospf6_lsa_compare(his, mine) < 0) { | |
550 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
551 | zlog_debug("Add request (Received MoreRecent)"); | |
552 | ospf6_lsdb_add(ospf6_lsa_copy(his), on->request_list); | |
553 | } else { | |
554 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
555 | zlog_debug("Discard (Existing MoreRecent)"); | |
556 | } | |
557 | ospf6_lsa_delete(his); | |
558 | } | |
559 | ||
560 | assert(p == OSPF6_MESSAGE_END(oh)); | |
561 | ||
562 | /* Increment sequence number */ | |
563 | on->dbdesc_seqnum++; | |
564 | ||
565 | /* schedule send lsreq */ | |
566 | if (on->request_list->count) | |
567 | thread_add_event(master, ospf6_lsreq_send, on, 0, | |
568 | &on->thread_send_lsreq); | |
569 | ||
570 | THREAD_OFF(on->thread_send_dbdesc); | |
571 | ||
572 | /* More bit check */ | |
573 | if (!CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MBIT) | |
574 | && !CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MBIT)) | |
575 | thread_add_event(master, exchange_done, on, 0, NULL); | |
576 | else { | |
577 | on->thread_send_dbdesc = NULL; | |
578 | thread_add_event(master, ospf6_dbdesc_send_newone, on, 0, | |
579 | &on->thread_send_dbdesc); | |
580 | } | |
581 | ||
582 | /* save last received dbdesc */ | |
583 | memcpy(&on->dbdesc_last, dbdesc, sizeof(struct ospf6_dbdesc)); | |
718e3744 | 584 | } |
585 | ||
d62a17ae | 586 | static void ospf6_dbdesc_recv_slave(struct ospf6_header *oh, |
587 | struct ospf6_neighbor *on) | |
718e3744 | 588 | { |
d62a17ae | 589 | struct ospf6_dbdesc *dbdesc; |
590 | char *p; | |
591 | ||
592 | dbdesc = (struct ospf6_dbdesc *)((caddr_t)oh | |
593 | + sizeof(struct ospf6_header)); | |
594 | ||
595 | if (on->state < OSPF6_NEIGHBOR_INIT) { | |
f44d0f5e | 596 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 597 | zlog_debug("Neighbor state less than Init, ignore"); |
598 | return; | |
599 | } | |
600 | ||
601 | switch (on->state) { | |
602 | case OSPF6_NEIGHBOR_TWOWAY: | |
f44d0f5e | 603 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 604 | zlog_debug("Neighbor state is 2-Way, ignore"); |
605 | return; | |
606 | ||
607 | case OSPF6_NEIGHBOR_INIT: | |
608 | thread_execute(master, twoway_received, on, 0); | |
609 | if (on->state != OSPF6_NEIGHBOR_EXSTART) { | |
f44d0f5e | 610 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 611 | zlog_debug( |
612 | "Neighbor state is not ExStart, ignore"); | |
613 | return; | |
614 | } | |
615 | /* else fall through to ExStart */ | |
616 | /* fallthru */ | |
617 | case OSPF6_NEIGHBOR_EXSTART: | |
618 | /* If the neighbor is Master, act as Slave. Schedule | |
619 | negotiation_done | |
620 | and process LSA Headers. Otherwise, ignore this message */ | |
621 | if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT) | |
622 | && CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MBIT) | |
623 | && CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT) | |
624 | && ntohs(oh->length) | |
625 | == sizeof(struct ospf6_header) | |
626 | + sizeof(struct ospf6_dbdesc)) { | |
627 | /* set the master/slave bit to slave */ | |
628 | UNSET_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MSBIT); | |
629 | ||
630 | /* set the DD sequence number to one specified by master | |
631 | */ | |
632 | on->dbdesc_seqnum = ntohl(dbdesc->seqnum); | |
633 | ||
634 | /* schedule NegotiationDone */ | |
635 | thread_execute(master, negotiation_done, on, 0); | |
636 | ||
637 | /* Record neighbor options */ | |
638 | memcpy(on->options, dbdesc->options, | |
639 | sizeof(on->options)); | |
640 | } else { | |
ff99e5b6 | 641 | zlog_warn( |
642 | "VRF %s: Nbr %s Negotiation failed", | |
643 | vrf_id_to_name(on->ospf6_if->interface->vrf_id), | |
644 | on->name); | |
d62a17ae | 645 | return; |
646 | } | |
647 | break; | |
648 | ||
649 | case OSPF6_NEIGHBOR_EXCHANGE: | |
650 | if (!memcmp(dbdesc, &on->dbdesc_last, | |
651 | sizeof(struct ospf6_dbdesc))) { | |
652 | /* Duplicated DatabaseDescription causes slave to | |
653 | * retransmit */ | |
f44d0f5e | 654 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 655 | zlog_debug( |
656 | "Duplicated dbdesc causes retransmit"); | |
657 | THREAD_OFF(on->thread_send_dbdesc); | |
658 | on->thread_send_dbdesc = NULL; | |
659 | thread_add_event(master, ospf6_dbdesc_send, on, 0, | |
660 | &on->thread_send_dbdesc); | |
661 | return; | |
662 | } | |
663 | ||
664 | if (!CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT)) { | |
f44d0f5e | 665 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 666 | zlog_debug("Master/Slave bit mismatch"); |
667 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
668 | NULL); | |
669 | return; | |
670 | } | |
671 | ||
672 | if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT)) { | |
f44d0f5e | 673 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 674 | zlog_debug("Initialize bit mismatch"); |
675 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
676 | NULL); | |
677 | return; | |
678 | } | |
679 | ||
680 | if (memcmp(on->options, dbdesc->options, sizeof(on->options))) { | |
f44d0f5e | 681 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 682 | zlog_debug("Option field mismatch"); |
683 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
684 | NULL); | |
685 | return; | |
686 | } | |
687 | ||
688 | if (ntohl(dbdesc->seqnum) != on->dbdesc_seqnum + 1) { | |
f44d0f5e | 689 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 690 | zlog_debug( |
691 | "Sequence number mismatch (%#lx expected)", | |
d7c0a89a | 692 | (unsigned long)on->dbdesc_seqnum + 1); |
d62a17ae | 693 | thread_add_event(master, seqnumber_mismatch, on, 0, |
694 | NULL); | |
695 | return; | |
696 | } | |
697 | break; | |
698 | ||
699 | case OSPF6_NEIGHBOR_LOADING: | |
700 | case OSPF6_NEIGHBOR_FULL: | |
701 | if (!memcmp(dbdesc, &on->dbdesc_last, | |
702 | sizeof(struct ospf6_dbdesc))) { | |
703 | /* Duplicated DatabaseDescription causes slave to | |
704 | * retransmit */ | |
f44d0f5e | 705 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 706 | zlog_debug( |
707 | "Duplicated dbdesc causes retransmit"); | |
708 | THREAD_OFF(on->thread_send_dbdesc); | |
709 | thread_add_event(master, ospf6_dbdesc_send, on, 0, | |
710 | &on->thread_send_dbdesc); | |
711 | return; | |
712 | } | |
713 | ||
f44d0f5e | 714 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 715 | zlog_debug("Not duplicate dbdesc in state %s", |
716 | ospf6_neighbor_state_str[on->state]); | |
717 | thread_add_event(master, seqnumber_mismatch, on, 0, NULL); | |
718 | return; | |
719 | ||
720 | default: | |
721 | assert(0); | |
722 | break; | |
723 | } | |
724 | ||
725 | /* Process LSA headers */ | |
726 | for (p = (char *)((caddr_t)dbdesc + sizeof(struct ospf6_dbdesc)); | |
727 | p + sizeof(struct ospf6_lsa_header) <= OSPF6_MESSAGE_END(oh); | |
728 | p += sizeof(struct ospf6_lsa_header)) { | |
729 | struct ospf6_lsa *his, *mine; | |
730 | struct ospf6_lsdb *lsdb = NULL; | |
731 | ||
732 | his = ospf6_lsa_create_headeronly((struct ospf6_lsa_header *)p); | |
733 | ||
734 | switch (OSPF6_LSA_SCOPE(his->header->type)) { | |
735 | case OSPF6_SCOPE_LINKLOCAL: | |
736 | lsdb = on->ospf6_if->lsdb; | |
737 | break; | |
738 | case OSPF6_SCOPE_AREA: | |
739 | lsdb = on->ospf6_if->area->lsdb; | |
740 | break; | |
741 | case OSPF6_SCOPE_AS: | |
742 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
743 | break; | |
744 | case OSPF6_SCOPE_RESERVED: | |
745 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
746 | zlog_debug("Ignoring LSA of reserved scope"); | |
747 | ospf6_lsa_delete(his); | |
748 | continue; | |
749 | break; | |
750 | } | |
751 | ||
752 | if (OSPF6_LSA_SCOPE(his->header->type) == OSPF6_SCOPE_AS | |
753 | && IS_AREA_STUB(on->ospf6_if->area)) { | |
754 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
755 | zlog_debug("E-bit mismatch with LSA Headers"); | |
756 | ospf6_lsa_delete(his); | |
757 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
758 | NULL); | |
759 | return; | |
760 | } | |
761 | ||
762 | mine = ospf6_lsdb_lookup(his->header->type, his->header->id, | |
763 | his->header->adv_router, lsdb); | |
764 | if (mine == NULL || ospf6_lsa_compare(his, mine) < 0) { | |
765 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
766 | zlog_debug("Add request-list: %s", his->name); | |
767 | ospf6_lsdb_add(ospf6_lsa_copy(his), on->request_list); | |
768 | } | |
769 | ospf6_lsa_delete(his); | |
770 | } | |
771 | ||
772 | assert(p == OSPF6_MESSAGE_END(oh)); | |
773 | ||
774 | /* Set sequence number to Master's */ | |
775 | on->dbdesc_seqnum = ntohl(dbdesc->seqnum); | |
776 | ||
777 | /* schedule send lsreq */ | |
778 | if (on->request_list->count) | |
779 | thread_add_event(master, ospf6_lsreq_send, on, 0, | |
780 | &on->thread_send_lsreq); | |
781 | ||
782 | THREAD_OFF(on->thread_send_dbdesc); | |
783 | thread_add_event(master, ospf6_dbdesc_send_newone, on, 0, | |
784 | &on->thread_send_dbdesc); | |
785 | ||
786 | /* save last received dbdesc */ | |
787 | memcpy(&on->dbdesc_last, dbdesc, sizeof(struct ospf6_dbdesc)); | |
718e3744 | 788 | } |
789 | ||
d62a17ae | 790 | static void ospf6_dbdesc_recv(struct in6_addr *src, struct in6_addr *dst, |
791 | struct ospf6_interface *oi, | |
792 | struct ospf6_header *oh) | |
718e3744 | 793 | { |
d62a17ae | 794 | struct ospf6_neighbor *on; |
795 | struct ospf6_dbdesc *dbdesc; | |
796 | ||
797 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
798 | if (on == NULL) { | |
f44d0f5e | 799 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 800 | zlog_debug("Neighbor not found, ignore"); |
801 | return; | |
802 | } | |
803 | ||
804 | dbdesc = (struct ospf6_dbdesc *)((caddr_t)oh | |
805 | + sizeof(struct ospf6_header)); | |
806 | ||
807 | /* Interface MTU check */ | |
808 | if (!oi->mtu_ignore && ntohs(dbdesc->ifmtu) != oi->ifmtu) { | |
ff99e5b6 | 809 | zlog_warn("VRF %s: I/F %s MTU mismatch (my %d rcvd %d)", |
810 | vrf_id_to_name(oi->interface->vrf_id), | |
811 | oi->interface->name, oi->ifmtu, ntohs(dbdesc->ifmtu)); | |
d62a17ae | 812 | return; |
813 | } | |
814 | ||
815 | if (dbdesc->reserved1 || dbdesc->reserved2) { | |
f44d0f5e | 816 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 817 | zlog_debug( |
818 | "Non-0 reserved field in %s's DbDesc, correct", | |
819 | on->name); | |
820 | dbdesc->reserved1 = 0; | |
821 | dbdesc->reserved2 = 0; | |
822 | } | |
823 | ||
43855e3d CS |
824 | oi->db_desc_in++; |
825 | ||
beadc736 | 826 | if (ntohl(oh->router_id) < ntohl(oi->area->ospf6->router_id)) |
d62a17ae | 827 | ospf6_dbdesc_recv_master(oh, on); |
beadc736 | 828 | else if (ntohl(oi->area->ospf6->router_id) < ntohl(oh->router_id)) |
d62a17ae | 829 | ospf6_dbdesc_recv_slave(oh, on); |
830 | else { | |
f44d0f5e | 831 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 832 | zlog_debug("Can't decide which is master, ignore"); |
833 | } | |
718e3744 | 834 | } |
835 | ||
d62a17ae | 836 | static void ospf6_lsreq_recv(struct in6_addr *src, struct in6_addr *dst, |
837 | struct ospf6_interface *oi, | |
838 | struct ospf6_header *oh) | |
718e3744 | 839 | { |
d62a17ae | 840 | struct ospf6_neighbor *on; |
841 | char *p; | |
842 | struct ospf6_lsreq_entry *e; | |
843 | struct ospf6_lsdb *lsdb = NULL; | |
844 | struct ospf6_lsa *lsa; | |
845 | ||
846 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
847 | if (on == NULL) { | |
f44d0f5e | 848 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 849 | zlog_debug("Neighbor not found, ignore"); |
850 | return; | |
851 | } | |
852 | ||
853 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE | |
854 | && on->state != OSPF6_NEIGHBOR_LOADING | |
855 | && on->state != OSPF6_NEIGHBOR_FULL) { | |
f44d0f5e | 856 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 857 | zlog_debug("Neighbor state less than Exchange, ignore"); |
858 | return; | |
859 | } | |
860 | ||
43855e3d CS |
861 | oi->ls_req_in++; |
862 | ||
d62a17ae | 863 | /* Process each request */ |
864 | for (p = (char *)((caddr_t)oh + sizeof(struct ospf6_header)); | |
865 | p + sizeof(struct ospf6_lsreq_entry) <= OSPF6_MESSAGE_END(oh); | |
866 | p += sizeof(struct ospf6_lsreq_entry)) { | |
867 | e = (struct ospf6_lsreq_entry *)p; | |
868 | ||
869 | switch (OSPF6_LSA_SCOPE(e->type)) { | |
870 | case OSPF6_SCOPE_LINKLOCAL: | |
871 | lsdb = on->ospf6_if->lsdb; | |
872 | break; | |
873 | case OSPF6_SCOPE_AREA: | |
874 | lsdb = on->ospf6_if->area->lsdb; | |
875 | break; | |
876 | case OSPF6_SCOPE_AS: | |
877 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
878 | break; | |
879 | default: | |
880 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
881 | zlog_debug("Ignoring LSA of reserved scope"); | |
882 | continue; | |
883 | break; | |
884 | } | |
885 | ||
886 | /* Find database copy */ | |
887 | lsa = ospf6_lsdb_lookup(e->type, e->id, e->adv_router, lsdb); | |
888 | if (lsa == NULL) { | |
d62a17ae | 889 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) { |
d62a17ae | 890 | zlog_debug( |
d47b448d DS |
891 | "Can't find requested [%s Id:%pI4 Adv:%pI4]", |
892 | ospf6_lstype_name(e->type), &e->id, | |
893 | &e->adv_router); | |
d62a17ae | 894 | } |
895 | thread_add_event(master, bad_lsreq, on, 0, NULL); | |
896 | return; | |
897 | } | |
898 | ||
899 | ospf6_lsdb_add(ospf6_lsa_copy(lsa), on->lsupdate_list); | |
900 | } | |
901 | ||
902 | assert(p == OSPF6_MESSAGE_END(oh)); | |
903 | ||
904 | /* schedule send lsupdate */ | |
905 | THREAD_OFF(on->thread_send_lsupdate); | |
906 | thread_add_event(master, ospf6_lsupdate_send_neighbor, on, 0, | |
907 | &on->thread_send_lsupdate); | |
718e3744 | 908 | } |
909 | ||
abc7ef44 DO |
910 | /* Verify, that the specified memory area contains exactly N valid IPv6 |
911 | prefixes as specified by RFC5340, A.4.1. */ | |
d62a17ae | 912 | static unsigned ospf6_prefixes_examin( |
913 | struct ospf6_prefix *current, /* start of buffer */ | |
914 | unsigned length, | |
d7c0a89a | 915 | const uint32_t req_num_pfxs /* always compared with the actual number |
d62a17ae | 916 | of prefixes */ |
d7c0a89a | 917 | ) |
abc7ef44 | 918 | { |
d7c0a89a QY |
919 | uint8_t requested_pfx_bytes; |
920 | uint32_t real_num_pfxs = 0; | |
d62a17ae | 921 | |
922 | while (length) { | |
923 | if (length < OSPF6_PREFIX_MIN_SIZE) { | |
924 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 925 | RECV_HDR)) |
d62a17ae | 926 | zlog_debug("%s: undersized IPv6 prefix header", |
927 | __func__); | |
928 | return MSG_NG; | |
929 | } | |
930 | /* safe to look deeper */ | |
931 | if (current->prefix_length > IPV6_MAX_BITLEN) { | |
932 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 933 | RECV_HDR)) |
d62a17ae | 934 | zlog_debug("%s: invalid PrefixLength (%u bits)", |
935 | __func__, current->prefix_length); | |
936 | return MSG_NG; | |
937 | } | |
938 | /* covers both fixed- and variable-sized fields */ | |
939 | requested_pfx_bytes = | |
940 | OSPF6_PREFIX_MIN_SIZE | |
941 | + OSPF6_PREFIX_SPACE(current->prefix_length); | |
942 | if (requested_pfx_bytes > length) { | |
943 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 944 | RECV_HDR)) |
d62a17ae | 945 | zlog_debug("%s: undersized IPv6 prefix", |
946 | __func__); | |
947 | return MSG_NG; | |
948 | } | |
949 | /* next prefix */ | |
950 | length -= requested_pfx_bytes; | |
951 | current = (struct ospf6_prefix *)((caddr_t)current | |
952 | + requested_pfx_bytes); | |
953 | real_num_pfxs++; | |
954 | } | |
955 | if (real_num_pfxs != req_num_pfxs) { | |
f44d0f5e | 956 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
957 | RECV_HDR)) | |
d62a17ae | 958 | zlog_debug( |
959 | "%s: IPv6 prefix number mismatch (%u required, %u real)", | |
960 | __func__, req_num_pfxs, real_num_pfxs); | |
961 | return MSG_NG; | |
962 | } | |
963 | return MSG_OK; | |
abc7ef44 DO |
964 | } |
965 | ||
966 | /* Verify an LSA to have a valid length and dispatch further (where | |
967 | appropriate) to check if the contents, including nested IPv6 prefixes, | |
968 | is properly sized/aligned within the LSA. Note that this function gets | |
969 | LSA type in network byte order, uses in host byte order and passes to | |
970 | ospf6_lstype_name() in network byte order again. */ | |
d62a17ae | 971 | static unsigned ospf6_lsa_examin(struct ospf6_lsa_header *lsah, |
d7c0a89a QY |
972 | const uint16_t lsalen, |
973 | const uint8_t headeronly) | |
abc7ef44 | 974 | { |
d62a17ae | 975 | struct ospf6_intra_prefix_lsa *intra_prefix_lsa; |
976 | struct ospf6_as_external_lsa *as_external_lsa; | |
977 | struct ospf6_link_lsa *link_lsa; | |
978 | unsigned exp_length; | |
d7c0a89a QY |
979 | uint8_t ltindex; |
980 | uint16_t lsatype; | |
d62a17ae | 981 | |
982 | /* In case an additional minimum length constraint is defined for | |
983 | current | |
984 | LSA type, make sure that this constraint is met. */ | |
985 | lsatype = ntohs(lsah->type); | |
986 | ltindex = lsatype & OSPF6_LSTYPE_FCODE_MASK; | |
987 | if (ltindex < OSPF6_LSTYPE_SIZE && ospf6_lsa_minlen[ltindex] | |
988 | && lsalen < ospf6_lsa_minlen[ltindex] + OSPF6_LSA_HEADER_SIZE) { | |
f44d0f5e | 989 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
990 | RECV_HDR)) | |
d62a17ae | 991 | zlog_debug("%s: undersized (%u B) LSA", __func__, |
992 | lsalen); | |
993 | return MSG_NG; | |
994 | } | |
995 | switch (lsatype) { | |
996 | case OSPF6_LSTYPE_ROUTER: | |
997 | /* RFC5340 A.4.3, LSA header + OSPF6_ROUTER_LSA_MIN_SIZE bytes | |
998 | followed | |
999 | by N>=0 interface descriptions. */ | |
1000 | if ((lsalen - OSPF6_LSA_HEADER_SIZE - OSPF6_ROUTER_LSA_MIN_SIZE) | |
1001 | % OSPF6_ROUTER_LSDESC_FIX_SIZE) { | |
1002 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1003 | RECV_HDR)) |
d62a17ae | 1004 | zlog_debug( |
1005 | "%s: interface description alignment error", | |
1006 | __func__); | |
1007 | return MSG_NG; | |
1008 | } | |
1009 | break; | |
1010 | case OSPF6_LSTYPE_NETWORK: | |
1011 | /* RFC5340 A.4.4, LSA header + OSPF6_NETWORK_LSA_MIN_SIZE bytes | |
1012 | followed by N>=0 attached router descriptions. */ | |
1013 | if ((lsalen - OSPF6_LSA_HEADER_SIZE | |
1014 | - OSPF6_NETWORK_LSA_MIN_SIZE) | |
1015 | % OSPF6_NETWORK_LSDESC_FIX_SIZE) { | |
1016 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1017 | RECV_HDR)) |
d62a17ae | 1018 | zlog_debug( |
1019 | "%s: router description alignment error", | |
1020 | __func__); | |
1021 | return MSG_NG; | |
1022 | } | |
1023 | break; | |
1024 | case OSPF6_LSTYPE_INTER_PREFIX: | |
1025 | /* RFC5340 A.4.5, LSA header + OSPF6_INTER_PREFIX_LSA_MIN_SIZE | |
1026 | bytes | |
1027 | followed by 3-4 fields of a single IPv6 prefix. */ | |
1028 | if (headeronly) | |
1029 | break; | |
1030 | return ospf6_prefixes_examin( | |
1031 | (struct ospf6_prefix | |
1032 | *)((caddr_t)lsah + OSPF6_LSA_HEADER_SIZE | |
1033 | + OSPF6_INTER_PREFIX_LSA_MIN_SIZE), | |
1034 | lsalen - OSPF6_LSA_HEADER_SIZE | |
1035 | - OSPF6_INTER_PREFIX_LSA_MIN_SIZE, | |
1036 | 1); | |
1037 | case OSPF6_LSTYPE_INTER_ROUTER: | |
1038 | /* RFC5340 A.4.6, fixed-size LSA. */ | |
1039 | if (lsalen | |
1040 | > OSPF6_LSA_HEADER_SIZE + OSPF6_INTER_ROUTER_LSA_FIX_SIZE) { | |
1041 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1042 | RECV_HDR)) |
d62a17ae | 1043 | zlog_debug("%s: oversized (%u B) LSA", __func__, |
1044 | lsalen); | |
1045 | return MSG_NG; | |
1046 | } | |
1047 | break; | |
1048 | case OSPF6_LSTYPE_AS_EXTERNAL: /* RFC5340 A.4.7, same as A.4.8. */ | |
1049 | case OSPF6_LSTYPE_TYPE_7: | |
1050 | /* RFC5340 A.4.8, LSA header + OSPF6_AS_EXTERNAL_LSA_MIN_SIZE | |
1051 | bytes | |
1052 | followed by 3-4 fields of IPv6 prefix and 3 conditional LSA | |
1053 | fields: | |
1054 | 16 bytes of forwarding address, 4 bytes of external route | |
1055 | tag, | |
1056 | 4 bytes of referenced link state ID. */ | |
1057 | if (headeronly) | |
1058 | break; | |
1059 | as_external_lsa = | |
1060 | (struct ospf6_as_external_lsa | |
1061 | *)((caddr_t)lsah + OSPF6_LSA_HEADER_SIZE); | |
1062 | exp_length = | |
1063 | OSPF6_LSA_HEADER_SIZE + OSPF6_AS_EXTERNAL_LSA_MIN_SIZE; | |
1064 | /* To find out if the last optional field (Referenced Link State | |
1065 | ID) is | |
1066 | assumed in this LSA, we need to access fixed fields of the | |
1067 | IPv6 | |
1068 | prefix before ospf6_prefix_examin() confirms its sizing. */ | |
1069 | if (exp_length + OSPF6_PREFIX_MIN_SIZE > lsalen) { | |
1070 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1071 | RECV_HDR)) |
d62a17ae | 1072 | zlog_debug("%s: undersized (%u B) LSA header", |
1073 | __func__, lsalen); | |
1074 | return MSG_NG; | |
1075 | } | |
1076 | /* forwarding address */ | |
1077 | if (CHECK_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_F)) | |
1078 | exp_length += 16; | |
1079 | /* external route tag */ | |
1080 | if (CHECK_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_T)) | |
1081 | exp_length += 4; | |
1082 | /* referenced link state ID */ | |
1083 | if (as_external_lsa->prefix.u._prefix_referenced_lstype) | |
1084 | exp_length += 4; | |
1085 | /* All the fixed-size fields (mandatory and optional) must fit. | |
1086 | I.e., | |
1087 | this check does not include any IPv6 prefix fields. */ | |
1088 | if (exp_length > lsalen) { | |
1089 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1090 | RECV_HDR)) |
d62a17ae | 1091 | zlog_debug("%s: undersized (%u B) LSA header", |
1092 | __func__, lsalen); | |
1093 | return MSG_NG; | |
1094 | } | |
1095 | /* The last call completely covers the remainder (IPv6 prefix). | |
1096 | */ | |
1097 | return ospf6_prefixes_examin( | |
1098 | (struct ospf6_prefix | |
1099 | *)((caddr_t)as_external_lsa | |
1100 | + OSPF6_AS_EXTERNAL_LSA_MIN_SIZE), | |
1101 | lsalen - exp_length, 1); | |
1102 | case OSPF6_LSTYPE_LINK: | |
1103 | /* RFC5340 A.4.9, LSA header + OSPF6_LINK_LSA_MIN_SIZE bytes | |
1104 | followed | |
1105 | by N>=0 IPv6 prefix blocks (with N declared beforehand). */ | |
1106 | if (headeronly) | |
1107 | break; | |
1108 | link_lsa = (struct ospf6_link_lsa *)((caddr_t)lsah | |
1109 | + OSPF6_LSA_HEADER_SIZE); | |
1110 | return ospf6_prefixes_examin( | |
1111 | (struct ospf6_prefix *)((caddr_t)link_lsa | |
1112 | + OSPF6_LINK_LSA_MIN_SIZE), | |
1113 | lsalen - OSPF6_LSA_HEADER_SIZE | |
1114 | - OSPF6_LINK_LSA_MIN_SIZE, | |
1115 | ntohl(link_lsa->prefix_num) /* 32 bits */ | |
9d303b37 | 1116 | ); |
d62a17ae | 1117 | case OSPF6_LSTYPE_INTRA_PREFIX: |
1118 | /* RFC5340 A.4.10, LSA header + OSPF6_INTRA_PREFIX_LSA_MIN_SIZE | |
1119 | bytes | |
1120 | followed by N>=0 IPv6 prefixes (with N declared beforehand). | |
1121 | */ | |
1122 | if (headeronly) | |
1123 | break; | |
1124 | intra_prefix_lsa = | |
1125 | (struct ospf6_intra_prefix_lsa | |
1126 | *)((caddr_t)lsah + OSPF6_LSA_HEADER_SIZE); | |
1127 | return ospf6_prefixes_examin( | |
1128 | (struct ospf6_prefix | |
1129 | *)((caddr_t)intra_prefix_lsa | |
1130 | + OSPF6_INTRA_PREFIX_LSA_MIN_SIZE), | |
1131 | lsalen - OSPF6_LSA_HEADER_SIZE | |
1132 | - OSPF6_INTRA_PREFIX_LSA_MIN_SIZE, | |
1133 | ntohs(intra_prefix_lsa->prefix_num) /* 16 bits */ | |
9d303b37 | 1134 | ); |
d62a17ae | 1135 | } |
1136 | /* No additional validation is possible for unknown LSA types, which are | |
1137 | themselves valid in OPSFv3, hence the default decision is to accept. | |
1138 | */ | |
1139 | return MSG_OK; | |
abc7ef44 DO |
1140 | } |
1141 | ||
1142 | /* Verify if the provided input buffer is a valid sequence of LSAs. This | |
1143 | includes verification of LSA blocks length/alignment and dispatching | |
1144 | of deeper-level checks. */ | |
1145 | static unsigned | |
d62a17ae | 1146 | ospf6_lsaseq_examin(struct ospf6_lsa_header *lsah, /* start of buffered data */ |
d7c0a89a | 1147 | size_t length, const uint8_t headeronly, |
d62a17ae | 1148 | /* When declared_num_lsas is not 0, compare it to the real |
1149 | number of LSAs | |
1150 | and treat the difference as an error. */ | |
d7c0a89a | 1151 | const uint32_t declared_num_lsas) |
abc7ef44 | 1152 | { |
d7c0a89a | 1153 | uint32_t counted_lsas = 0; |
d62a17ae | 1154 | |
1155 | while (length) { | |
d7c0a89a | 1156 | uint16_t lsalen; |
d62a17ae | 1157 | if (length < OSPF6_LSA_HEADER_SIZE) { |
1158 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1159 | RECV_HDR)) |
d62a17ae | 1160 | zlog_debug( |
1161 | "%s: undersized (%zu B) trailing (#%u) LSA header", | |
1162 | __func__, length, counted_lsas); | |
1163 | return MSG_NG; | |
1164 | } | |
1165 | /* save on ntohs() calls here and in the LSA validator */ | |
1166 | lsalen = OSPF6_LSA_SIZE(lsah); | |
1167 | if (lsalen < OSPF6_LSA_HEADER_SIZE) { | |
1168 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1169 | RECV_HDR)) |
d62a17ae | 1170 | zlog_debug( |
1171 | "%s: malformed LSA header #%u, declared length is %u B", | |
1172 | __func__, counted_lsas, lsalen); | |
1173 | return MSG_NG; | |
1174 | } | |
1175 | if (headeronly) { | |
1176 | /* less checks here and in ospf6_lsa_examin() */ | |
1177 | if (MSG_OK != ospf6_lsa_examin(lsah, lsalen, 1)) { | |
1178 | if (IS_OSPF6_DEBUG_MESSAGE( | |
f44d0f5e | 1179 | OSPF6_MESSAGE_TYPE_UNKNOWN, |
1180 | RECV_HDR)) | |
d62a17ae | 1181 | zlog_debug( |
1182 | "%s: anomaly in header-only %s LSA #%u", | |
1183 | __func__, | |
1184 | ospf6_lstype_name(lsah->type), | |
1185 | counted_lsas); | |
1186 | return MSG_NG; | |
1187 | } | |
1188 | lsah = (struct ospf6_lsa_header | |
1189 | *)((caddr_t)lsah | |
1190 | + OSPF6_LSA_HEADER_SIZE); | |
1191 | length -= OSPF6_LSA_HEADER_SIZE; | |
1192 | } else { | |
1193 | /* make sure the input buffer is deep enough before | |
1194 | * further checks */ | |
1195 | if (lsalen > length) { | |
1196 | if (IS_OSPF6_DEBUG_MESSAGE( | |
f44d0f5e | 1197 | OSPF6_MESSAGE_TYPE_UNKNOWN, |
1198 | RECV_HDR)) | |
d62a17ae | 1199 | zlog_debug( |
1200 | "%s: anomaly in %s LSA #%u: declared length is %u B, buffered length is %zu B", | |
1201 | __func__, | |
1202 | ospf6_lstype_name(lsah->type), | |
1203 | counted_lsas, lsalen, length); | |
1204 | return MSG_NG; | |
1205 | } | |
1206 | if (MSG_OK != ospf6_lsa_examin(lsah, lsalen, 0)) { | |
1207 | if (IS_OSPF6_DEBUG_MESSAGE( | |
f44d0f5e | 1208 | OSPF6_MESSAGE_TYPE_UNKNOWN, |
1209 | RECV_HDR)) | |
d62a17ae | 1210 | zlog_debug( |
1211 | "%s: anomaly in %s LSA #%u", | |
1212 | __func__, | |
1213 | ospf6_lstype_name(lsah->type), | |
1214 | counted_lsas); | |
1215 | return MSG_NG; | |
1216 | } | |
1217 | lsah = (struct ospf6_lsa_header *)((caddr_t)lsah | |
1218 | + lsalen); | |
1219 | length -= lsalen; | |
1220 | } | |
1221 | counted_lsas++; | |
1222 | } | |
1223 | ||
1224 | if (declared_num_lsas && counted_lsas != declared_num_lsas) { | |
f44d0f5e | 1225 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1226 | RECV_HDR)) | |
d62a17ae | 1227 | zlog_debug( |
1228 | "%s: #LSAs declared (%u) does not match actual (%u)", | |
1229 | __func__, declared_num_lsas, counted_lsas); | |
1230 | return MSG_NG; | |
1231 | } | |
1232 | return MSG_OK; | |
abc7ef44 DO |
1233 | } |
1234 | ||
1235 | /* Verify a complete OSPF packet for proper sizing/alignment. */ | |
d62a17ae | 1236 | static unsigned ospf6_packet_examin(struct ospf6_header *oh, |
1237 | const unsigned bytesonwire) | |
abc7ef44 | 1238 | { |
d62a17ae | 1239 | struct ospf6_lsupdate *lsupd; |
1240 | unsigned test; | |
1241 | ||
1242 | /* length, 1st approximation */ | |
1243 | if (bytesonwire < OSPF6_HEADER_SIZE) { | |
f44d0f5e | 1244 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1245 | RECV_HDR)) | |
d62a17ae | 1246 | zlog_debug("%s: undersized (%u B) packet", __func__, |
1247 | bytesonwire); | |
1248 | return MSG_NG; | |
1249 | } | |
1250 | /* Now it is safe to access header fields. */ | |
1251 | if (bytesonwire != ntohs(oh->length)) { | |
f44d0f5e | 1252 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1253 | RECV_HDR)) | |
d62a17ae | 1254 | zlog_debug( |
1ba43456 CS |
1255 | "%s: %s packet length error (%u real, %u declared)", |
1256 | __func__, lookup_msg(ospf6_message_type_str, | |
1257 | oh->type, NULL), | |
1258 | bytesonwire, ntohs(oh->length)); | |
d62a17ae | 1259 | return MSG_NG; |
1260 | } | |
1261 | /* version check */ | |
1262 | if (oh->version != OSPFV3_VERSION) { | |
f44d0f5e | 1263 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1264 | RECV_HDR)) | |
d62a17ae | 1265 | zlog_debug("%s: invalid (%u) protocol version", |
1266 | __func__, oh->version); | |
1267 | return MSG_NG; | |
1268 | } | |
1269 | /* length, 2nd approximation */ | |
1270 | if (oh->type < OSPF6_MESSAGE_TYPE_ALL && ospf6_packet_minlen[oh->type] | |
1271 | && bytesonwire | |
1272 | < OSPF6_HEADER_SIZE + ospf6_packet_minlen[oh->type]) { | |
f44d0f5e | 1273 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1274 | RECV_HDR)) | |
d62a17ae | 1275 | zlog_debug("%s: undersized (%u B) %s packet", __func__, |
1276 | bytesonwire, | |
1277 | lookup_msg(ospf6_message_type_str, oh->type, | |
1278 | NULL)); | |
1279 | return MSG_NG; | |
1280 | } | |
1281 | /* type-specific deeper validation */ | |
1282 | switch (oh->type) { | |
1283 | case OSPF6_MESSAGE_TYPE_HELLO: | |
1284 | /* RFC5340 A.3.2, packet header + OSPF6_HELLO_MIN_SIZE bytes | |
1285 | followed | |
1286 | by N>=0 router-IDs. */ | |
1287 | if (0 | |
1288 | == (bytesonwire - OSPF6_HEADER_SIZE - OSPF6_HELLO_MIN_SIZE) | |
1289 | % 4) | |
1290 | return MSG_OK; | |
f44d0f5e | 1291 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1292 | RECV_HDR)) | |
d62a17ae | 1293 | zlog_debug("%s: alignment error in %s packet", __func__, |
1294 | lookup_msg(ospf6_message_type_str, oh->type, | |
1295 | NULL)); | |
1296 | return MSG_NG; | |
1297 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1298 | /* RFC5340 A.3.3, packet header + OSPF6_DB_DESC_MIN_SIZE bytes | |
1299 | followed | |
1300 | by N>=0 header-only LSAs. */ | |
1301 | test = ospf6_lsaseq_examin( | |
1302 | (struct ospf6_lsa_header *)((caddr_t)oh | |
1303 | + OSPF6_HEADER_SIZE | |
1304 | + OSPF6_DB_DESC_MIN_SIZE), | |
1305 | bytesonwire - OSPF6_HEADER_SIZE | |
1306 | - OSPF6_DB_DESC_MIN_SIZE, | |
1307 | 1, 0); | |
1308 | break; | |
1309 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1310 | /* RFC5340 A.3.4, packet header + N>=0 LS description blocks. */ | |
1311 | if (0 | |
1312 | == (bytesonwire - OSPF6_HEADER_SIZE - OSPF6_LS_REQ_MIN_SIZE) | |
1313 | % OSPF6_LSREQ_LSDESC_FIX_SIZE) | |
1314 | return MSG_OK; | |
f44d0f5e | 1315 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1316 | RECV_HDR)) | |
d62a17ae | 1317 | zlog_debug("%s: alignment error in %s packet", __func__, |
1318 | lookup_msg(ospf6_message_type_str, oh->type, | |
1319 | NULL)); | |
1320 | return MSG_NG; | |
1321 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1322 | /* RFC5340 A.3.5, packet header + OSPF6_LS_UPD_MIN_SIZE bytes | |
1323 | followed | |
1324 | by N>=0 full LSAs (with N declared beforehand). */ | |
1325 | lsupd = (struct ospf6_lsupdate *)((caddr_t)oh | |
1326 | + OSPF6_HEADER_SIZE); | |
1327 | test = ospf6_lsaseq_examin( | |
1328 | (struct ospf6_lsa_header *)((caddr_t)lsupd | |
1329 | + OSPF6_LS_UPD_MIN_SIZE), | |
1330 | bytesonwire - OSPF6_HEADER_SIZE - OSPF6_LS_UPD_MIN_SIZE, | |
1331 | 0, ntohl(lsupd->lsa_number) /* 32 bits */ | |
9d303b37 | 1332 | ); |
d62a17ae | 1333 | break; |
1334 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1335 | /* RFC5340 A.3.6, packet header + N>=0 header-only LSAs. */ | |
1336 | test = ospf6_lsaseq_examin( | |
1337 | (struct ospf6_lsa_header *)((caddr_t)oh | |
1338 | + OSPF6_HEADER_SIZE | |
1339 | + OSPF6_LS_ACK_MIN_SIZE), | |
1340 | bytesonwire - OSPF6_HEADER_SIZE - OSPF6_LS_ACK_MIN_SIZE, | |
1341 | 1, 0); | |
1342 | break; | |
1343 | default: | |
f44d0f5e | 1344 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1345 | RECV_HDR)) | |
d62a17ae | 1346 | zlog_debug("%s: invalid (%u) message type", __func__, |
1347 | oh->type); | |
1348 | return MSG_NG; | |
1349 | } | |
1350 | if (test != MSG_OK | |
f44d0f5e | 1351 | && IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, RECV_HDR)) |
d62a17ae | 1352 | zlog_debug("%s: anomaly in %s packet", __func__, |
1353 | lookup_msg(ospf6_message_type_str, oh->type, NULL)); | |
1354 | return test; | |
abc7ef44 DO |
1355 | } |
1356 | ||
1357 | /* Verify particular fields of otherwise correct received OSPF packet to | |
1358 | meet the requirements of RFC. */ | |
d62a17ae | 1359 | static int ospf6_rxpacket_examin(struct ospf6_interface *oi, |
1360 | struct ospf6_header *oh, | |
1361 | const unsigned bytesonwire) | |
abc7ef44 | 1362 | { |
d62a17ae | 1363 | |
1364 | if (MSG_OK != ospf6_packet_examin(oh, bytesonwire)) | |
1365 | return MSG_NG; | |
1366 | ||
1367 | /* Area-ID check */ | |
1368 | if (oh->area_id != oi->area->area_id) { | |
ff99e5b6 | 1369 | if (oh->area_id == OSPF_AREA_BACKBONE) |
1370 | zlog_warn( | |
1371 | "VRF %s: I/F %s Message may be via Virtual Link: not supported", | |
1372 | vrf_id_to_name(oi->interface->vrf_id), | |
1373 | oi->interface->name); | |
1374 | else | |
1375 | zlog_warn( | |
d47b448d | 1376 | "VRF %s: I/F %s Area-ID mismatch (my %pI4, rcvd %pI4)", |
ff99e5b6 | 1377 | vrf_id_to_name(oi->interface->vrf_id), |
d47b448d DS |
1378 | oi->interface->name, &oi->area->area_id, |
1379 | &oh->area_id); | |
d62a17ae | 1380 | return MSG_NG; |
1381 | } | |
1382 | ||
1383 | /* Instance-ID check */ | |
1384 | if (oh->instance_id != oi->instance_id) { | |
ff99e5b6 | 1385 | zlog_warn( |
1386 | "VRF %s: I/F %s Instance-ID mismatch (my %u, rcvd %u)", | |
1387 | vrf_id_to_name(oi->interface->vrf_id), | |
1388 | oi->interface->name, oi->instance_id, oh->instance_id); | |
d62a17ae | 1389 | return MSG_NG; |
1390 | } | |
1391 | ||
1392 | /* Router-ID check */ | |
1393 | if (oh->router_id == oi->area->ospf6->router_id) { | |
d47b448d | 1394 | zlog_warn("VRF %s: I/F %s Duplicate Router-ID (%pI4)", |
ff99e5b6 | 1395 | vrf_id_to_name(oi->interface->vrf_id), |
d47b448d | 1396 | oi->interface->name, &oh->router_id); |
d62a17ae | 1397 | return MSG_NG; |
1398 | } | |
1399 | return MSG_OK; | |
abc7ef44 DO |
1400 | } |
1401 | ||
d62a17ae | 1402 | static void ospf6_lsupdate_recv(struct in6_addr *src, struct in6_addr *dst, |
1403 | struct ospf6_interface *oi, | |
1404 | struct ospf6_header *oh) | |
718e3744 | 1405 | { |
d62a17ae | 1406 | struct ospf6_neighbor *on; |
1407 | struct ospf6_lsupdate *lsupdate; | |
1408 | char *p; | |
1409 | ||
1410 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
1411 | if (on == NULL) { | |
f44d0f5e | 1412 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 1413 | zlog_debug("Neighbor not found, ignore"); |
1414 | return; | |
1415 | } | |
1416 | ||
1417 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE | |
1418 | && on->state != OSPF6_NEIGHBOR_LOADING | |
1419 | && on->state != OSPF6_NEIGHBOR_FULL) { | |
f44d0f5e | 1420 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 1421 | zlog_debug("Neighbor state less than Exchange, ignore"); |
1422 | return; | |
1423 | } | |
1424 | ||
1425 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
1426 | + sizeof(struct ospf6_header)); | |
718e3744 | 1427 | |
43855e3d CS |
1428 | oi->ls_upd_in++; |
1429 | ||
d62a17ae | 1430 | /* Process LSAs */ |
1431 | for (p = (char *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); | |
1432 | p < OSPF6_MESSAGE_END(oh) | |
1433 | && p + OSPF6_LSA_SIZE(p) <= OSPF6_MESSAGE_END(oh); | |
1434 | p += OSPF6_LSA_SIZE(p)) { | |
1435 | ospf6_receive_lsa(on, (struct ospf6_lsa_header *)p); | |
1436 | } | |
1437 | ||
1438 | assert(p == OSPF6_MESSAGE_END(oh)); | |
508e53e2 | 1439 | } |
1440 | ||
d62a17ae | 1441 | static void ospf6_lsack_recv(struct in6_addr *src, struct in6_addr *dst, |
1442 | struct ospf6_interface *oi, | |
1443 | struct ospf6_header *oh) | |
508e53e2 | 1444 | { |
d62a17ae | 1445 | struct ospf6_neighbor *on; |
1446 | char *p; | |
1447 | struct ospf6_lsa *his, *mine; | |
1448 | struct ospf6_lsdb *lsdb = NULL; | |
1449 | ||
1450 | assert(oh->type == OSPF6_MESSAGE_TYPE_LSACK); | |
1451 | ||
1452 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
1453 | if (on == NULL) { | |
f44d0f5e | 1454 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 1455 | zlog_debug("Neighbor not found, ignore"); |
1456 | return; | |
1457 | } | |
1458 | ||
1459 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE | |
1460 | && on->state != OSPF6_NEIGHBOR_LOADING | |
1461 | && on->state != OSPF6_NEIGHBOR_FULL) { | |
f44d0f5e | 1462 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 1463 | zlog_debug("Neighbor state less than Exchange, ignore"); |
1464 | return; | |
1465 | } | |
1466 | ||
43855e3d CS |
1467 | oi->ls_ack_in++; |
1468 | ||
d62a17ae | 1469 | for (p = (char *)((caddr_t)oh + sizeof(struct ospf6_header)); |
1470 | p + sizeof(struct ospf6_lsa_header) <= OSPF6_MESSAGE_END(oh); | |
1471 | p += sizeof(struct ospf6_lsa_header)) { | |
1472 | his = ospf6_lsa_create_headeronly((struct ospf6_lsa_header *)p); | |
1473 | ||
1474 | switch (OSPF6_LSA_SCOPE(his->header->type)) { | |
1475 | case OSPF6_SCOPE_LINKLOCAL: | |
1476 | lsdb = on->ospf6_if->lsdb; | |
1477 | break; | |
1478 | case OSPF6_SCOPE_AREA: | |
1479 | lsdb = on->ospf6_if->area->lsdb; | |
1480 | break; | |
1481 | case OSPF6_SCOPE_AS: | |
1482 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
1483 | break; | |
1484 | case OSPF6_SCOPE_RESERVED: | |
1485 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1486 | zlog_debug("Ignoring LSA of reserved scope"); | |
1487 | ospf6_lsa_delete(his); | |
1488 | continue; | |
1489 | break; | |
1490 | } | |
1491 | ||
1492 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1493 | zlog_debug("%s acknowledged by %s", his->name, | |
1494 | on->name); | |
1495 | ||
1496 | /* Find database copy */ | |
1497 | mine = ospf6_lsdb_lookup(his->header->type, his->header->id, | |
1498 | his->header->adv_router, lsdb); | |
1499 | if (mine == NULL) { | |
1500 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1501 | zlog_debug("No database copy"); | |
1502 | ospf6_lsa_delete(his); | |
1503 | continue; | |
1504 | } | |
1505 | ||
1506 | /* Check if the LSA is on his retrans-list */ | |
1507 | mine = ospf6_lsdb_lookup(his->header->type, his->header->id, | |
1508 | his->header->adv_router, | |
1509 | on->retrans_list); | |
1510 | if (mine == NULL) { | |
1511 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1512 | zlog_debug("Not on %s's retrans-list", | |
1513 | on->name); | |
1514 | ospf6_lsa_delete(his); | |
1515 | continue; | |
1516 | } | |
1517 | ||
1518 | if (ospf6_lsa_compare(his, mine) != 0) { | |
1519 | /* Log this questionable acknowledgement, | |
1520 | and examine the next one. */ | |
1521 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1522 | zlog_debug("Questionable acknowledgement"); | |
1523 | ospf6_lsa_delete(his); | |
1524 | continue; | |
1525 | } | |
1526 | ||
1527 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1528 | zlog_debug( | |
1529 | "Acknowledged, remove from %s's retrans-list", | |
1530 | on->name); | |
1531 | ||
1532 | ospf6_decrement_retrans_count(mine); | |
1533 | if (OSPF6_LSA_IS_MAXAGE(mine)) | |
1534 | ospf6_maxage_remove(on->ospf6_if->area->ospf6); | |
1535 | ospf6_lsdb_remove(mine, on->retrans_list); | |
1536 | ospf6_lsa_delete(his); | |
1537 | } | |
1538 | ||
1539 | assert(p == OSPF6_MESSAGE_END(oh)); | |
508e53e2 | 1540 | } |
1541 | ||
d7c0a89a QY |
1542 | static uint8_t *recvbuf = NULL; |
1543 | static uint8_t *sendbuf = NULL; | |
6ac29a51 | 1544 | static unsigned int iobuflen = 0; |
3b4cd3a9 | 1545 | |
d62a17ae | 1546 | int ospf6_iobuf_size(unsigned int size) |
3b4cd3a9 | 1547 | { |
d7c0a89a | 1548 | uint8_t *recvnew, *sendnew; |
d62a17ae | 1549 | |
1550 | if (size <= iobuflen) | |
1551 | return iobuflen; | |
1552 | ||
1553 | recvnew = XMALLOC(MTYPE_OSPF6_MESSAGE, size); | |
1554 | sendnew = XMALLOC(MTYPE_OSPF6_MESSAGE, size); | |
d62a17ae | 1555 | |
0a22ddfb QY |
1556 | XFREE(MTYPE_OSPF6_MESSAGE, recvbuf); |
1557 | XFREE(MTYPE_OSPF6_MESSAGE, sendbuf); | |
d62a17ae | 1558 | recvbuf = recvnew; |
1559 | sendbuf = sendnew; | |
1560 | iobuflen = size; | |
1561 | ||
1562 | return iobuflen; | |
3b4cd3a9 | 1563 | } |
508e53e2 | 1564 | |
d62a17ae | 1565 | void ospf6_message_terminate(void) |
ae2254aa | 1566 | { |
e1b36e13 QY |
1567 | XFREE(MTYPE_OSPF6_MESSAGE, recvbuf); |
1568 | XFREE(MTYPE_OSPF6_MESSAGE, sendbuf); | |
d62a17ae | 1569 | |
1570 | iobuflen = 0; | |
ae2254aa TG |
1571 | } |
1572 | ||
d62a17ae | 1573 | int ospf6_receive(struct thread *thread) |
508e53e2 | 1574 | { |
d62a17ae | 1575 | int sockfd; |
1576 | unsigned int len; | |
d62a17ae | 1577 | struct in6_addr src, dst; |
1578 | ifindex_t ifindex; | |
1579 | struct iovec iovector[2]; | |
1580 | struct ospf6_interface *oi; | |
1581 | struct ospf6_header *oh; | |
7df1f362 | 1582 | struct ospf6 *ospf6; |
d62a17ae | 1583 | |
1584 | /* add next read thread */ | |
7df1f362 | 1585 | ospf6 = THREAD_ARG(thread); |
d62a17ae | 1586 | sockfd = THREAD_FD(thread); |
7df1f362 K |
1587 | |
1588 | thread_add_read(master, ospf6_receive, ospf6, ospf6->fd, | |
1589 | &ospf6->t_ospf6_receive); | |
d62a17ae | 1590 | |
1591 | /* initialize */ | |
1592 | memset(&src, 0, sizeof(src)); | |
1593 | memset(&dst, 0, sizeof(dst)); | |
1594 | ifindex = 0; | |
1595 | memset(recvbuf, 0, iobuflen); | |
1596 | iovector[0].iov_base = recvbuf; | |
1597 | iovector[0].iov_len = iobuflen; | |
1598 | iovector[1].iov_base = NULL; | |
1599 | iovector[1].iov_len = 0; | |
1600 | ||
1601 | /* receive message */ | |
7df1f362 | 1602 | len = ospf6_recvmsg(&src, &dst, &ifindex, iovector, sockfd); |
d62a17ae | 1603 | if (len > iobuflen) { |
1c50c1c0 | 1604 | flog_err(EC_LIB_DEVELOPMENT, "Excess message read"); |
d62a17ae | 1605 | return 0; |
1606 | } | |
1607 | ||
c5d28568 | 1608 | oi = ospf6_interface_lookup_by_ifindex(ifindex, ospf6->vrf_id); |
d62a17ae | 1609 | if (oi == NULL || oi->area == NULL |
1610 | || CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE)) { | |
f44d0f5e | 1611 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1612 | RECV_HDR)) | |
e4c42d65 | 1613 | zlog_debug("Message received on disabled interface"); |
d62a17ae | 1614 | return 0; |
1615 | } | |
1616 | if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE)) { | |
f44d0f5e | 1617 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1618 | RECV_HDR)) | |
d62a17ae | 1619 | zlog_debug("%s: Ignore message on passive interface %s", |
1620 | __func__, oi->interface->name); | |
1621 | return 0; | |
1622 | } | |
1623 | ||
1624 | oh = (struct ospf6_header *)recvbuf; | |
1625 | if (ospf6_rxpacket_examin(oi, oh, len) != MSG_OK) | |
1626 | return 0; | |
1627 | ||
1628 | /* Being here means, that no sizing/alignment issues were detected in | |
1629 | the input packet. This renders the additional checks performed below | |
1630 | and also in the type-specific dispatching functions a dead code, | |
1631 | which can be dismissed in a cleanup-focused review round later. */ | |
1632 | ||
1633 | /* Log */ | |
f44d0f5e | 1634 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) { |
d62a17ae | 1635 | zlog_debug("%s received on %s", |
1636 | lookup_msg(ospf6_message_type_str, oh->type, NULL), | |
1637 | oi->interface->name); | |
5145a172 DL |
1638 | zlog_debug(" src: %pI6", &src); |
1639 | zlog_debug(" dst: %pI6", &dst); | |
d62a17ae | 1640 | |
1641 | switch (oh->type) { | |
1642 | case OSPF6_MESSAGE_TYPE_HELLO: | |
f44d0f5e | 1643 | ospf6_hello_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1644 | break; |
1645 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
f44d0f5e | 1646 | ospf6_dbdesc_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1647 | break; |
1648 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
f44d0f5e | 1649 | ospf6_lsreq_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1650 | break; |
1651 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
f44d0f5e | 1652 | ospf6_lsupdate_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1653 | break; |
1654 | case OSPF6_MESSAGE_TYPE_LSACK: | |
f44d0f5e | 1655 | ospf6_lsack_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1656 | break; |
1657 | default: | |
1658 | assert(0); | |
1659 | } | |
1660 | } | |
1661 | ||
1662 | switch (oh->type) { | |
1663 | case OSPF6_MESSAGE_TYPE_HELLO: | |
1664 | ospf6_hello_recv(&src, &dst, oi, oh); | |
1665 | break; | |
1666 | ||
1667 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1668 | ospf6_dbdesc_recv(&src, &dst, oi, oh); | |
1669 | break; | |
1670 | ||
1671 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1672 | ospf6_lsreq_recv(&src, &dst, oi, oh); | |
1673 | break; | |
1674 | ||
1675 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1676 | ospf6_lsupdate_recv(&src, &dst, oi, oh); | |
1677 | break; | |
1678 | ||
1679 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1680 | ospf6_lsack_recv(&src, &dst, oi, oh); | |
1681 | break; | |
1682 | ||
1683 | default: | |
1684 | assert(0); | |
1685 | } | |
1686 | ||
1687 | return 0; | |
718e3744 | 1688 | } |
1689 | ||
d62a17ae | 1690 | static void ospf6_send(struct in6_addr *src, struct in6_addr *dst, |
1691 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 1692 | { |
d62a17ae | 1693 | unsigned int len; |
d47b448d | 1694 | char srcname[64]; |
d62a17ae | 1695 | struct iovec iovector[2]; |
1696 | ||
1697 | /* initialize */ | |
1698 | iovector[0].iov_base = (caddr_t)oh; | |
1699 | iovector[0].iov_len = ntohs(oh->length); | |
1700 | iovector[1].iov_base = NULL; | |
1701 | iovector[1].iov_len = 0; | |
1702 | ||
1703 | /* fill OSPF header */ | |
1704 | oh->version = OSPFV3_VERSION; | |
1705 | /* message type must be set before */ | |
1706 | /* message length must be set before */ | |
1707 | oh->router_id = oi->area->ospf6->router_id; | |
1708 | oh->area_id = oi->area->area_id; | |
1709 | /* checksum is calculated by kernel */ | |
1710 | oh->instance_id = oi->instance_id; | |
1711 | oh->reserved = 0; | |
1712 | ||
1713 | /* Log */ | |
f44d0f5e | 1714 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, SEND_HDR)) { |
d62a17ae | 1715 | if (src) |
1716 | inet_ntop(AF_INET6, src, srcname, sizeof(srcname)); | |
1717 | else | |
1718 | memset(srcname, 0, sizeof(srcname)); | |
1719 | zlog_debug("%s send on %s", | |
1720 | lookup_msg(ospf6_message_type_str, oh->type, NULL), | |
1721 | oi->interface->name); | |
1722 | zlog_debug(" src: %s", srcname); | |
5145a172 | 1723 | zlog_debug(" dst: %pI6", dst); |
d62a17ae | 1724 | |
1725 | switch (oh->type) { | |
1726 | case OSPF6_MESSAGE_TYPE_HELLO: | |
f44d0f5e | 1727 | ospf6_hello_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1728 | break; |
1729 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
f44d0f5e | 1730 | ospf6_dbdesc_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1731 | break; |
1732 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
f44d0f5e | 1733 | ospf6_lsreq_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1734 | break; |
1735 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
f44d0f5e | 1736 | ospf6_lsupdate_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1737 | break; |
1738 | case OSPF6_MESSAGE_TYPE_LSACK: | |
f44d0f5e | 1739 | ospf6_lsack_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1740 | break; |
1741 | default: | |
1742 | zlog_debug("Unknown message"); | |
1743 | assert(0); | |
1744 | break; | |
1745 | } | |
1746 | } | |
1747 | ||
1748 | /* send message */ | |
7df1f362 | 1749 | if (oi->area->ospf6->fd != -1) { |
b66ec22c | 1750 | len = ospf6_sendmsg(src, dst, oi->interface->ifindex, iovector, |
7df1f362 K |
1751 | oi->area->ospf6->fd); |
1752 | if (len != ntohs(oh->length)) | |
1753 | flog_err(EC_LIB_DEVELOPMENT, | |
1754 | "Could not send entire message"); | |
1755 | } | |
718e3744 | 1756 | } |
1757 | ||
d62a17ae | 1758 | static uint32_t ospf6_packet_max(struct ospf6_interface *oi) |
681b84e8 | 1759 | { |
d62a17ae | 1760 | assert(oi->ifmtu > sizeof(struct ip6_hdr)); |
1761 | return oi->ifmtu - (sizeof(struct ip6_hdr)); | |
681b84e8 DT |
1762 | } |
1763 | ||
d62a17ae | 1764 | int ospf6_hello_send(struct thread *thread) |
718e3744 | 1765 | { |
d62a17ae | 1766 | struct ospf6_interface *oi; |
1767 | struct ospf6_header *oh; | |
1768 | struct ospf6_hello *hello; | |
d7c0a89a | 1769 | uint8_t *p; |
d62a17ae | 1770 | struct listnode *node, *nnode; |
1771 | struct ospf6_neighbor *on; | |
1772 | ||
1773 | oi = (struct ospf6_interface *)THREAD_ARG(thread); | |
1774 | oi->thread_send_hello = (struct thread *)NULL; | |
1775 | ||
1776 | if (oi->state <= OSPF6_INTERFACE_DOWN) { | |
f44d0f5e | 1777 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_HELLO, SEND_HDR)) |
d62a17ae | 1778 | zlog_debug("Unable to send Hello on down interface %s", |
1779 | oi->interface->name); | |
1780 | return 0; | |
1781 | } | |
1782 | ||
1783 | if (iobuflen == 0) { | |
1784 | zlog_debug("Unable to send Hello on interface %s iobuflen is 0", | |
1785 | oi->interface->name); | |
1786 | return 0; | |
1787 | } | |
1788 | ||
1789 | /* set next thread */ | |
1790 | thread_add_timer(master, ospf6_hello_send, oi, oi->hello_interval, | |
1791 | &oi->thread_send_hello); | |
1792 | ||
1793 | memset(sendbuf, 0, iobuflen); | |
1794 | oh = (struct ospf6_header *)sendbuf; | |
1795 | hello = (struct ospf6_hello *)((caddr_t)oh | |
1796 | + sizeof(struct ospf6_header)); | |
1797 | ||
1798 | hello->interface_id = htonl(oi->interface->ifindex); | |
1799 | hello->priority = oi->priority; | |
1800 | hello->options[0] = oi->area->options[0]; | |
1801 | hello->options[1] = oi->area->options[1]; | |
1802 | hello->options[2] = oi->area->options[2]; | |
1803 | hello->hello_interval = htons(oi->hello_interval); | |
1804 | hello->dead_interval = htons(oi->dead_interval); | |
1805 | hello->drouter = oi->drouter; | |
1806 | hello->bdrouter = oi->bdrouter; | |
1807 | ||
d7c0a89a | 1808 | p = (uint8_t *)((caddr_t)hello + sizeof(struct ospf6_hello)); |
d62a17ae | 1809 | |
1810 | for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) { | |
1811 | if (on->state < OSPF6_NEIGHBOR_INIT) | |
1812 | continue; | |
1813 | ||
d7c0a89a | 1814 | if (p - sendbuf + sizeof(uint32_t) > ospf6_packet_max(oi)) { |
d62a17ae | 1815 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_HELLO, |
f44d0f5e | 1816 | SEND_HDR)) |
d62a17ae | 1817 | zlog_debug( |
1818 | "sending Hello message: exceeds I/F MTU"); | |
1819 | break; | |
1820 | } | |
1821 | ||
d7c0a89a QY |
1822 | memcpy(p, &on->router_id, sizeof(uint32_t)); |
1823 | p += sizeof(uint32_t); | |
d62a17ae | 1824 | } |
1825 | ||
1826 | oh->type = OSPF6_MESSAGE_TYPE_HELLO; | |
1827 | oh->length = htons(p - sendbuf); | |
1828 | ||
43855e3d CS |
1829 | oi->hello_out++; |
1830 | ||
d62a17ae | 1831 | ospf6_send(oi->linklocal_addr, &allspfrouters6, oi, oh); |
1832 | return 0; | |
718e3744 | 1833 | } |
1834 | ||
d62a17ae | 1835 | int ospf6_dbdesc_send(struct thread *thread) |
718e3744 | 1836 | { |
d62a17ae | 1837 | struct ospf6_neighbor *on; |
1838 | struct ospf6_header *oh; | |
1839 | struct ospf6_dbdesc *dbdesc; | |
d7c0a89a | 1840 | uint8_t *p; |
2e37407f | 1841 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 1842 | struct in6_addr *dst; |
1843 | ||
1844 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
1845 | on->thread_send_dbdesc = (struct thread *)NULL; | |
1846 | ||
1847 | if (on->state < OSPF6_NEIGHBOR_EXSTART) { | |
f44d0f5e | 1848 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_DBDESC, SEND_HDR)) |
d62a17ae | 1849 | zlog_debug( |
1850 | "Quit to send DbDesc to neighbor %s state %s", | |
1851 | on->name, ospf6_neighbor_state_str[on->state]); | |
1852 | return 0; | |
1853 | } | |
1854 | ||
1855 | /* set next thread if master */ | |
1856 | if (CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MSBIT)) | |
1857 | thread_add_timer(master, ospf6_dbdesc_send, on, | |
1858 | on->ospf6_if->rxmt_interval, | |
1859 | &on->thread_send_dbdesc); | |
1860 | ||
1861 | memset(sendbuf, 0, iobuflen); | |
1862 | oh = (struct ospf6_header *)sendbuf; | |
1863 | dbdesc = (struct ospf6_dbdesc *)((caddr_t)oh | |
1864 | + sizeof(struct ospf6_header)); | |
1865 | ||
1866 | /* if this is initial one, initialize sequence number for DbDesc */ | |
1867 | if (CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_IBIT) | |
1868 | && (on->dbdesc_seqnum == 0)) { | |
1869 | on->dbdesc_seqnum = monotime(NULL); | |
1870 | } | |
1871 | ||
1872 | dbdesc->options[0] = on->ospf6_if->area->options[0]; | |
1873 | dbdesc->options[1] = on->ospf6_if->area->options[1]; | |
1874 | dbdesc->options[2] = on->ospf6_if->area->options[2]; | |
1875 | dbdesc->ifmtu = htons(on->ospf6_if->ifmtu); | |
1876 | dbdesc->bits = on->dbdesc_bits; | |
1877 | dbdesc->seqnum = htonl(on->dbdesc_seqnum); | |
1878 | ||
1879 | /* if this is not initial one, set LSA headers in dbdesc */ | |
d7c0a89a | 1880 | p = (uint8_t *)((caddr_t)dbdesc + sizeof(struct ospf6_dbdesc)); |
d62a17ae | 1881 | if (!CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_IBIT)) { |
2e37407f | 1882 | for (ALL_LSDB(on->dbdesc_list, lsa, lsanext)) { |
d62a17ae | 1883 | ospf6_lsa_age_update_to_send(lsa, |
1884 | on->ospf6_if->transdelay); | |
1885 | ||
1886 | /* MTU check */ | |
1887 | if (p - sendbuf + sizeof(struct ospf6_lsa_header) | |
1888 | > ospf6_packet_max(on->ospf6_if)) { | |
ccf260c4 | 1889 | ospf6_lsa_unlock(lsa); |
1890 | if (lsanext) | |
1891 | ospf6_lsa_unlock(lsanext); | |
d62a17ae | 1892 | break; |
1893 | } | |
1894 | memcpy(p, lsa->header, sizeof(struct ospf6_lsa_header)); | |
1895 | p += sizeof(struct ospf6_lsa_header); | |
1896 | } | |
1897 | } | |
1898 | ||
1899 | oh->type = OSPF6_MESSAGE_TYPE_DBDESC; | |
1900 | oh->length = htons(p - sendbuf); | |
1901 | ||
1902 | ||
1903 | if (on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) | |
1904 | dst = &allspfrouters6; | |
1905 | else | |
1906 | dst = &on->linklocal_addr; | |
1907 | ||
43855e3d CS |
1908 | on->ospf6_if->db_desc_out++; |
1909 | ||
d62a17ae | 1910 | ospf6_send(on->ospf6_if->linklocal_addr, dst, on->ospf6_if, oh); |
1911 | ||
1912 | return 0; | |
718e3744 | 1913 | } |
1914 | ||
d62a17ae | 1915 | int ospf6_dbdesc_send_newone(struct thread *thread) |
718e3744 | 1916 | { |
d62a17ae | 1917 | struct ospf6_neighbor *on; |
2e37407f | 1918 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 1919 | unsigned int size = 0; |
1920 | ||
1921 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
1922 | ospf6_lsdb_remove_all(on->dbdesc_list); | |
1923 | ||
1924 | /* move LSAs from summary_list to dbdesc_list (within neighbor | |
1925 | structure) | |
1926 | so that ospf6_send_dbdesc () can send those LSAs */ | |
1927 | size = sizeof(struct ospf6_lsa_header) + sizeof(struct ospf6_dbdesc); | |
2e37407f | 1928 | for (ALL_LSDB(on->summary_list, lsa, lsanext)) { |
bac66c5c | 1929 | /* if stub area then don't advertise AS-External LSAs */ |
1930 | if (IS_AREA_STUB(on->ospf6_if->area) | |
1931 | && ntohs(lsa->header->type) == OSPF6_LSTYPE_AS_EXTERNAL) { | |
1932 | ospf6_lsdb_remove(lsa, on->summary_list); | |
1933 | continue; | |
1934 | } | |
1935 | ||
d62a17ae | 1936 | if (size + sizeof(struct ospf6_lsa_header) |
1937 | > ospf6_packet_max(on->ospf6_if)) { | |
ccf260c4 | 1938 | ospf6_lsa_unlock(lsa); |
1939 | if (lsanext) | |
1940 | ospf6_lsa_unlock(lsanext); | |
d62a17ae | 1941 | break; |
1942 | } | |
1943 | ||
1944 | ospf6_lsdb_add(ospf6_lsa_copy(lsa), on->dbdesc_list); | |
1945 | ospf6_lsdb_remove(lsa, on->summary_list); | |
1946 | size += sizeof(struct ospf6_lsa_header); | |
1947 | } | |
1948 | ||
1949 | if (on->summary_list->count == 0) | |
1950 | UNSET_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MBIT); | |
1951 | ||
1952 | /* If slave, More bit check must be done here */ | |
1953 | if (!CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MSBIT) && /* Slave */ | |
1954 | !CHECK_FLAG(on->dbdesc_last.bits, OSPF6_DBDESC_MBIT) | |
1955 | && !CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MBIT)) | |
1956 | thread_add_event(master, exchange_done, on, 0, NULL); | |
1957 | ||
1958 | thread_execute(master, ospf6_dbdesc_send, on, 0); | |
1959 | return 0; | |
508e53e2 | 1960 | } |
718e3744 | 1961 | |
d62a17ae | 1962 | int ospf6_lsreq_send(struct thread *thread) |
508e53e2 | 1963 | { |
d62a17ae | 1964 | struct ospf6_neighbor *on; |
1965 | struct ospf6_header *oh; | |
1966 | struct ospf6_lsreq_entry *e; | |
d7c0a89a | 1967 | uint8_t *p; |
2e37407f | 1968 | struct ospf6_lsa *lsa, *lsanext, *last_req; |
d62a17ae | 1969 | |
1970 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
1971 | on->thread_send_lsreq = (struct thread *)NULL; | |
1972 | ||
1973 | /* LSReq will be sent only in ExStart or Loading */ | |
1974 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE | |
1975 | && on->state != OSPF6_NEIGHBOR_LOADING) { | |
f44d0f5e | 1976 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSREQ, SEND_HDR)) |
d62a17ae | 1977 | zlog_debug("Quit to send LSReq to neighbor %s state %s", |
1978 | on->name, | |
1979 | ospf6_neighbor_state_str[on->state]); | |
1980 | return 0; | |
1981 | } | |
1982 | ||
1983 | /* schedule loading_done if request list is empty */ | |
1984 | if (on->request_list->count == 0) { | |
1985 | thread_add_event(master, loading_done, on, 0, NULL); | |
1986 | return 0; | |
1987 | } | |
1988 | ||
1989 | memset(sendbuf, 0, iobuflen); | |
1990 | oh = (struct ospf6_header *)sendbuf; | |
1991 | last_req = NULL; | |
1992 | ||
1993 | /* set Request entries in lsreq */ | |
d7c0a89a | 1994 | p = (uint8_t *)((caddr_t)oh + sizeof(struct ospf6_header)); |
2e37407f | 1995 | for (ALL_LSDB(on->request_list, lsa, lsanext)) { |
d62a17ae | 1996 | /* MTU check */ |
1997 | if (p - sendbuf + sizeof(struct ospf6_lsreq_entry) | |
1998 | > ospf6_packet_max(on->ospf6_if)) { | |
ccf260c4 | 1999 | ospf6_lsa_unlock(lsa); |
2000 | if (lsanext) | |
2001 | ospf6_lsa_unlock(lsanext); | |
d62a17ae | 2002 | break; |
2003 | } | |
2004 | ||
2005 | e = (struct ospf6_lsreq_entry *)p; | |
2006 | e->type = lsa->header->type; | |
2007 | e->id = lsa->header->id; | |
2008 | e->adv_router = lsa->header->adv_router; | |
2009 | p += sizeof(struct ospf6_lsreq_entry); | |
2010 | last_req = lsa; | |
2011 | } | |
2012 | ||
2013 | if (last_req != NULL) { | |
744ba569 DS |
2014 | if (on->last_ls_req != NULL) |
2015 | on->last_ls_req = ospf6_lsa_unlock(on->last_ls_req); | |
2016 | ||
d62a17ae | 2017 | ospf6_lsa_lock(last_req); |
2018 | on->last_ls_req = last_req; | |
2019 | } | |
2020 | ||
2021 | oh->type = OSPF6_MESSAGE_TYPE_LSREQ; | |
2022 | oh->length = htons(p - sendbuf); | |
2023 | ||
43855e3d CS |
2024 | on->ospf6_if->ls_req_out++; |
2025 | ||
d62a17ae | 2026 | if (on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) |
2027 | ospf6_send(on->ospf6_if->linklocal_addr, &allspfrouters6, | |
2028 | on->ospf6_if, oh); | |
2029 | else | |
2030 | ospf6_send(on->ospf6_if->linklocal_addr, &on->linklocal_addr, | |
2031 | on->ospf6_if, oh); | |
2032 | ||
2033 | /* set next thread */ | |
2034 | if (on->request_list->count != 0) { | |
2035 | on->thread_send_lsreq = NULL; | |
2036 | thread_add_timer(master, ospf6_lsreq_send, on, | |
2037 | on->ospf6_if->rxmt_interval, | |
2038 | &on->thread_send_lsreq); | |
2039 | } | |
2040 | ||
2041 | return 0; | |
718e3744 | 2042 | } |
2043 | ||
1ba43456 CS |
2044 | static void ospf6_send_lsupdate(struct ospf6_neighbor *on, |
2045 | struct ospf6_interface *oi, | |
2046 | struct ospf6_header *oh) | |
2047 | { | |
2048 | ||
2049 | if (on) { | |
43855e3d CS |
2050 | on->ospf6_if->ls_upd_out++; |
2051 | ||
996c9314 LB |
2052 | if ((on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) |
2053 | || (on->ospf6_if->state == OSPF6_INTERFACE_DR) | |
2054 | || (on->ospf6_if->state == OSPF6_INTERFACE_BDR)) { | |
1ba43456 CS |
2055 | ospf6_send(on->ospf6_if->linklocal_addr, |
2056 | &allspfrouters6, on->ospf6_if, oh); | |
2057 | } else { | |
2058 | ospf6_send(on->ospf6_if->linklocal_addr, | |
2059 | &on->linklocal_addr, on->ospf6_if, oh); | |
2060 | } | |
2061 | } else if (oi) { | |
43855e3d CS |
2062 | |
2063 | oi->ls_upd_out++; | |
2064 | ||
996c9314 LB |
2065 | if ((oi->state == OSPF6_INTERFACE_POINTTOPOINT) |
2066 | || (oi->state == OSPF6_INTERFACE_DR) | |
2067 | || (oi->state == OSPF6_INTERFACE_BDR)) { | |
1ba43456 CS |
2068 | ospf6_send(oi->linklocal_addr, &allspfrouters6, oi, oh); |
2069 | } else { | |
2070 | ospf6_send(oi->linklocal_addr, &alldrouters6, oi, oh); | |
2071 | } | |
2072 | } | |
2073 | } | |
2074 | ||
d62a17ae | 2075 | int ospf6_lsupdate_send_neighbor(struct thread *thread) |
718e3744 | 2076 | { |
d62a17ae | 2077 | struct ospf6_neighbor *on; |
2078 | struct ospf6_header *oh; | |
2079 | struct ospf6_lsupdate *lsupdate; | |
d7c0a89a | 2080 | uint8_t *p; |
d62a17ae | 2081 | int lsa_cnt; |
2e37407f | 2082 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 2083 | |
2084 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
2085 | on->thread_send_lsupdate = (struct thread *)NULL; | |
2086 | ||
f44d0f5e | 2087 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE, SEND_HDR)) |
d62a17ae | 2088 | zlog_debug("LSUpdate to neighbor %s", on->name); |
2089 | ||
2090 | if (on->state < OSPF6_NEIGHBOR_EXCHANGE) { | |
f44d0f5e | 2091 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE, |
2092 | SEND_HDR)) | |
d62a17ae | 2093 | zlog_debug("Quit to send (neighbor state %s)", |
2094 | ospf6_neighbor_state_str[on->state]); | |
2095 | return 0; | |
2096 | } | |
2097 | ||
2098 | memset(sendbuf, 0, iobuflen); | |
2099 | oh = (struct ospf6_header *)sendbuf; | |
2100 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
2101 | + sizeof(struct ospf6_header)); | |
2102 | ||
d7c0a89a | 2103 | p = (uint8_t *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); |
d62a17ae | 2104 | lsa_cnt = 0; |
2105 | ||
2106 | /* lsupdate_list lists those LSA which doesn't need to be | |
2107 | retransmitted. remove those from the list */ | |
2e37407f | 2108 | for (ALL_LSDB(on->lsupdate_list, lsa, lsanext)) { |
d62a17ae | 2109 | /* MTU check */ |
2110 | if ((p - sendbuf + (unsigned int)OSPF6_LSA_SIZE(lsa->header)) | |
2111 | > ospf6_packet_max(on->ospf6_if)) { | |
1ba43456 CS |
2112 | if (lsa_cnt) { |
2113 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2114 | oh->length = htons(p - sendbuf); | |
2115 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2116 | ||
2117 | ospf6_send_lsupdate(on, NULL, oh); | |
2118 | ||
2119 | memset(sendbuf, 0, iobuflen); | |
2120 | oh = (struct ospf6_header *)sendbuf; | |
996c9314 LB |
2121 | lsupdate = (struct ospf6_lsupdate |
2122 | *)((caddr_t)oh | |
2123 | + sizeof(struct | |
2124 | ospf6_header)); | |
1ba43456 | 2125 | |
d7c0a89a QY |
2126 | p = (uint8_t *)((caddr_t)lsupdate |
2127 | + sizeof(struct | |
2128 | ospf6_lsupdate)); | |
1ba43456 CS |
2129 | lsa_cnt = 0; |
2130 | } | |
d62a17ae | 2131 | } |
2132 | ||
2133 | ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay); | |
2134 | memcpy(p, lsa->header, OSPF6_LSA_SIZE(lsa->header)); | |
2135 | p += OSPF6_LSA_SIZE(lsa->header); | |
2136 | lsa_cnt++; | |
2137 | ||
e2e60c48 | 2138 | assert(lsa->lock == 2); |
d62a17ae | 2139 | ospf6_lsdb_remove(lsa, on->lsupdate_list); |
2140 | } | |
2141 | ||
2142 | if (lsa_cnt) { | |
2143 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2144 | oh->length = htons(p - sendbuf); | |
2145 | lsupdate->lsa_number = htonl(lsa_cnt); | |
1ba43456 | 2146 | ospf6_send_lsupdate(on, NULL, oh); |
d62a17ae | 2147 | } |
2148 | ||
2149 | /* The addresses used for retransmissions are different from those sent | |
2150 | the | |
2151 | first time and so we need to separate them here. | |
2152 | */ | |
2153 | memset(sendbuf, 0, iobuflen); | |
2154 | oh = (struct ospf6_header *)sendbuf; | |
2155 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
2156 | + sizeof(struct ospf6_header)); | |
d7c0a89a | 2157 | p = (uint8_t *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); |
d62a17ae | 2158 | lsa_cnt = 0; |
2159 | ||
2e37407f | 2160 | for (ALL_LSDB(on->retrans_list, lsa, lsanext)) { |
d62a17ae | 2161 | /* MTU check */ |
2162 | if ((p - sendbuf + (unsigned int)OSPF6_LSA_SIZE(lsa->header)) | |
2163 | > ospf6_packet_max(on->ospf6_if)) { | |
1ba43456 CS |
2164 | if (lsa_cnt) { |
2165 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2166 | oh->length = htons(p - sendbuf); | |
2167 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2168 | ||
996c9314 LB |
2169 | if (on->ospf6_if->state |
2170 | == OSPF6_INTERFACE_POINTTOPOINT) { | |
1ba43456 CS |
2171 | ospf6_send(on->ospf6_if->linklocal_addr, |
2172 | &allspfrouters6, | |
2173 | on->ospf6_if, oh); | |
2174 | } else { | |
2175 | ospf6_send(on->ospf6_if->linklocal_addr, | |
2176 | &on->linklocal_addr, | |
2177 | on->ospf6_if, oh); | |
2178 | } | |
2179 | ||
2180 | memset(sendbuf, 0, iobuflen); | |
2181 | oh = (struct ospf6_header *)sendbuf; | |
996c9314 LB |
2182 | lsupdate = (struct ospf6_lsupdate |
2183 | *)((caddr_t)oh | |
2184 | + sizeof(struct | |
2185 | ospf6_header)); | |
d7c0a89a QY |
2186 | p = (uint8_t *)((caddr_t)lsupdate |
2187 | + sizeof(struct | |
2188 | ospf6_lsupdate)); | |
1ba43456 CS |
2189 | lsa_cnt = 0; |
2190 | } | |
d62a17ae | 2191 | } |
2192 | ||
2193 | ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay); | |
2194 | memcpy(p, lsa->header, OSPF6_LSA_SIZE(lsa->header)); | |
2195 | p += OSPF6_LSA_SIZE(lsa->header); | |
2196 | lsa_cnt++; | |
2197 | } | |
2198 | ||
2199 | if (lsa_cnt) { | |
2200 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2201 | oh->length = htons(p - sendbuf); | |
2202 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2203 | ||
2204 | if (on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) | |
2205 | ospf6_send(on->ospf6_if->linklocal_addr, | |
2206 | &allspfrouters6, on->ospf6_if, oh); | |
2207 | else | |
2208 | ospf6_send(on->ospf6_if->linklocal_addr, | |
2209 | &on->linklocal_addr, on->ospf6_if, oh); | |
2210 | } | |
2211 | ||
2212 | if (on->lsupdate_list->count != 0) { | |
2213 | on->thread_send_lsupdate = NULL; | |
2214 | thread_add_event(master, ospf6_lsupdate_send_neighbor, on, 0, | |
2215 | &on->thread_send_lsupdate); | |
2216 | } else if (on->retrans_list->count != 0) { | |
2217 | on->thread_send_lsupdate = NULL; | |
2218 | thread_add_timer(master, ospf6_lsupdate_send_neighbor, on, | |
2219 | on->ospf6_if->rxmt_interval, | |
2220 | &on->thread_send_lsupdate); | |
2221 | } | |
2222 | return 0; | |
718e3744 | 2223 | } |
2224 | ||
76249532 CS |
2225 | int ospf6_lsupdate_send_neighbor_now(struct ospf6_neighbor *on, |
2226 | struct ospf6_lsa *lsa) | |
2227 | { | |
2228 | struct ospf6_header *oh; | |
2229 | struct ospf6_lsupdate *lsupdate; | |
d7c0a89a | 2230 | uint8_t *p; |
76249532 CS |
2231 | int lsa_cnt = 0; |
2232 | ||
2233 | memset(sendbuf, 0, iobuflen); | |
2234 | oh = (struct ospf6_header *)sendbuf; | |
2235 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
2236 | + sizeof(struct ospf6_header)); | |
2237 | ||
d7c0a89a | 2238 | p = (uint8_t *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); |
76249532 CS |
2239 | ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay); |
2240 | memcpy(p, lsa->header, OSPF6_LSA_SIZE(lsa->header)); | |
2241 | p += OSPF6_LSA_SIZE(lsa->header); | |
2242 | lsa_cnt++; | |
2243 | ||
2244 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2245 | oh->length = htons(p - sendbuf); | |
2246 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2247 | ||
996c9314 | 2248 | if (IS_OSPF6_DEBUG_FLOODING |
f44d0f5e | 2249 | || IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE, SEND_HDR)) |
15569c58 DA |
2250 | zlog_debug("%s: Send lsupdate with lsa %s (age %u)", __func__, |
2251 | lsa->name, ntohs(lsa->header->age)); | |
76249532 CS |
2252 | |
2253 | ospf6_send_lsupdate(on, NULL, oh); | |
2254 | ||
2255 | return 0; | |
2256 | } | |
2257 | ||
d62a17ae | 2258 | int ospf6_lsupdate_send_interface(struct thread *thread) |
718e3744 | 2259 | { |
d62a17ae | 2260 | struct ospf6_interface *oi; |
2261 | struct ospf6_header *oh; | |
2262 | struct ospf6_lsupdate *lsupdate; | |
d7c0a89a | 2263 | uint8_t *p; |
d62a17ae | 2264 | int lsa_cnt; |
2e37407f | 2265 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 2266 | |
2267 | oi = (struct ospf6_interface *)THREAD_ARG(thread); | |
2268 | oi->thread_send_lsupdate = (struct thread *)NULL; | |
2269 | ||
2270 | if (oi->state <= OSPF6_INTERFACE_WAITING) { | |
f44d0f5e | 2271 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE, |
2272 | SEND_HDR)) | |
d62a17ae | 2273 | zlog_debug( |
2274 | "Quit to send LSUpdate to interface %s state %s", | |
2275 | oi->interface->name, | |
2276 | ospf6_interface_state_str[oi->state]); | |
2277 | return 0; | |
2278 | } | |
2279 | ||
2280 | /* if we have nothing to send, return */ | |
2281 | if (oi->lsupdate_list->count == 0) | |
2282 | return 0; | |
2283 | ||
2284 | memset(sendbuf, 0, iobuflen); | |
2285 | oh = (struct ospf6_header *)sendbuf; | |
2286 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
2287 | + sizeof(struct ospf6_header)); | |
2288 | ||
d7c0a89a | 2289 | p = (uint8_t *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); |
d62a17ae | 2290 | lsa_cnt = 0; |
2291 | ||
2e37407f | 2292 | for (ALL_LSDB(oi->lsupdate_list, lsa, lsanext)) { |
d62a17ae | 2293 | /* MTU check */ |
2294 | if ((p - sendbuf + ((unsigned int)OSPF6_LSA_SIZE(lsa->header))) | |
2295 | > ospf6_packet_max(oi)) { | |
1ba43456 CS |
2296 | if (lsa_cnt) { |
2297 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2298 | oh->length = htons(p - sendbuf); | |
2299 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2300 | ||
2301 | ospf6_send_lsupdate(NULL, oi, oh); | |
43855e3d | 2302 | if (IS_OSPF6_DEBUG_MESSAGE( |
996c9314 | 2303 | OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) |
43855e3d | 2304 | zlog_debug("%s: LSUpdate length %d", |
15569c58 | 2305 | __func__, ntohs(oh->length)); |
1ba43456 CS |
2306 | |
2307 | memset(sendbuf, 0, iobuflen); | |
2308 | oh = (struct ospf6_header *)sendbuf; | |
996c9314 LB |
2309 | lsupdate = (struct ospf6_lsupdate |
2310 | *)((caddr_t)oh | |
2311 | + sizeof(struct | |
2312 | ospf6_header)); | |
1ba43456 | 2313 | |
d7c0a89a QY |
2314 | p = (uint8_t *)((caddr_t)lsupdate |
2315 | + sizeof(struct | |
2316 | ospf6_lsupdate)); | |
1ba43456 CS |
2317 | lsa_cnt = 0; |
2318 | } | |
d62a17ae | 2319 | } |
2320 | ||
2321 | ospf6_lsa_age_update_to_send(lsa, oi->transdelay); | |
2322 | memcpy(p, lsa->header, OSPF6_LSA_SIZE(lsa->header)); | |
2323 | p += OSPF6_LSA_SIZE(lsa->header); | |
2324 | lsa_cnt++; | |
2325 | ||
e2e60c48 | 2326 | assert(lsa->lock == 2); |
d62a17ae | 2327 | ospf6_lsdb_remove(lsa, oi->lsupdate_list); |
2328 | } | |
2329 | ||
2330 | if (lsa_cnt) { | |
d62a17ae | 2331 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; |
2332 | oh->length = htons(p - sendbuf); | |
1ba43456 | 2333 | lsupdate->lsa_number = htonl(lsa_cnt); |
d62a17ae | 2334 | |
1ba43456 | 2335 | ospf6_send_lsupdate(NULL, oi, oh); |
d62a17ae | 2336 | } |
2337 | ||
2338 | if (oi->lsupdate_list->count > 0) { | |
2339 | oi->thread_send_lsupdate = NULL; | |
2340 | thread_add_event(master, ospf6_lsupdate_send_interface, oi, 0, | |
2341 | &oi->thread_send_lsupdate); | |
2342 | } | |
2343 | ||
2344 | return 0; | |
718e3744 | 2345 | } |
2346 | ||
d62a17ae | 2347 | int ospf6_lsack_send_neighbor(struct thread *thread) |
718e3744 | 2348 | { |
d62a17ae | 2349 | struct ospf6_neighbor *on; |
2350 | struct ospf6_header *oh; | |
d7c0a89a | 2351 | uint8_t *p; |
2e37407f | 2352 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 2353 | int lsa_cnt = 0; |
2354 | ||
2355 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
2356 | on->thread_send_lsack = (struct thread *)NULL; | |
2357 | ||
2358 | if (on->state < OSPF6_NEIGHBOR_EXCHANGE) { | |
f44d0f5e | 2359 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSACK, SEND_HDR)) |
d62a17ae | 2360 | zlog_debug("Quit to send LSAck to neighbor %s state %s", |
2361 | on->name, | |
2362 | ospf6_neighbor_state_str[on->state]); | |
2363 | return 0; | |
2364 | } | |
2365 | ||
2366 | /* if we have nothing to send, return */ | |
2367 | if (on->lsack_list->count == 0) | |
2368 | return 0; | |
2369 | ||
2370 | memset(sendbuf, 0, iobuflen); | |
2371 | oh = (struct ospf6_header *)sendbuf; | |
2372 | ||
d7c0a89a | 2373 | p = (uint8_t *)((caddr_t)oh + sizeof(struct ospf6_header)); |
d62a17ae | 2374 | |
2e37407f | 2375 | for (ALL_LSDB(on->lsack_list, lsa, lsanext)) { |
d62a17ae | 2376 | /* MTU check */ |
2377 | if (p - sendbuf + sizeof(struct ospf6_lsa_header) | |
2378 | > ospf6_packet_max(on->ospf6_if)) { | |
2379 | /* if we run out of packet size/space here, | |
2380 | better to try again soon. */ | |
1ba43456 CS |
2381 | if (lsa_cnt) { |
2382 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; | |
2383 | oh->length = htons(p - sendbuf); | |
2384 | ||
43855e3d CS |
2385 | on->ospf6_if->ls_ack_out++; |
2386 | ||
1ba43456 | 2387 | ospf6_send(on->ospf6_if->linklocal_addr, |
996c9314 LB |
2388 | &on->linklocal_addr, on->ospf6_if, |
2389 | oh); | |
1ba43456 CS |
2390 | |
2391 | memset(sendbuf, 0, iobuflen); | |
2392 | oh = (struct ospf6_header *)sendbuf; | |
d7c0a89a QY |
2393 | p = (uint8_t *)((caddr_t)oh |
2394 | + sizeof(struct ospf6_header)); | |
1ba43456 CS |
2395 | lsa_cnt = 0; |
2396 | } | |
d62a17ae | 2397 | } |
2398 | ||
2399 | ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay); | |
2400 | memcpy(p, lsa->header, sizeof(struct ospf6_lsa_header)); | |
2401 | p += sizeof(struct ospf6_lsa_header); | |
2402 | ||
e2e60c48 | 2403 | assert(lsa->lock == 2); |
d62a17ae | 2404 | ospf6_lsdb_remove(lsa, on->lsack_list); |
2405 | lsa_cnt++; | |
2406 | } | |
2407 | ||
2408 | if (lsa_cnt) { | |
2409 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; | |
2410 | oh->length = htons(p - sendbuf); | |
2411 | ||
43855e3d CS |
2412 | on->ospf6_if->ls_ack_out++; |
2413 | ||
d62a17ae | 2414 | ospf6_send(on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
2415 | on->ospf6_if, oh); | |
2416 | } | |
2417 | ||
2418 | if (on->lsack_list->count > 0) | |
2419 | thread_add_event(master, ospf6_lsack_send_neighbor, on, 0, | |
2420 | &on->thread_send_lsack); | |
2421 | ||
2422 | return 0; | |
718e3744 | 2423 | } |
2424 | ||
d62a17ae | 2425 | int ospf6_lsack_send_interface(struct thread *thread) |
718e3744 | 2426 | { |
d62a17ae | 2427 | struct ospf6_interface *oi; |
2428 | struct ospf6_header *oh; | |
d7c0a89a | 2429 | uint8_t *p; |
2e37407f | 2430 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 2431 | int lsa_cnt = 0; |
2432 | ||
2433 | oi = (struct ospf6_interface *)THREAD_ARG(thread); | |
2434 | oi->thread_send_lsack = (struct thread *)NULL; | |
2435 | ||
2436 | if (oi->state <= OSPF6_INTERFACE_WAITING) { | |
f44d0f5e | 2437 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSACK, SEND_HDR)) |
d62a17ae | 2438 | zlog_debug( |
2439 | "Quit to send LSAck to interface %s state %s", | |
2440 | oi->interface->name, | |
2441 | ospf6_interface_state_str[oi->state]); | |
2442 | return 0; | |
2443 | } | |
2444 | ||
2445 | /* if we have nothing to send, return */ | |
2446 | if (oi->lsack_list->count == 0) | |
2447 | return 0; | |
2448 | ||
2449 | memset(sendbuf, 0, iobuflen); | |
2450 | oh = (struct ospf6_header *)sendbuf; | |
2451 | ||
d7c0a89a | 2452 | p = (uint8_t *)((caddr_t)oh + sizeof(struct ospf6_header)); |
d62a17ae | 2453 | |
2e37407f | 2454 | for (ALL_LSDB(oi->lsack_list, lsa, lsanext)) { |
d62a17ae | 2455 | /* MTU check */ |
2456 | if (p - sendbuf + sizeof(struct ospf6_lsa_header) | |
2457 | > ospf6_packet_max(oi)) { | |
2458 | /* if we run out of packet size/space here, | |
2459 | better to try again soon. */ | |
2460 | THREAD_OFF(oi->thread_send_lsack); | |
2461 | thread_add_event(master, ospf6_lsack_send_interface, oi, | |
2462 | 0, &oi->thread_send_lsack); | |
2463 | ||
ccf260c4 | 2464 | ospf6_lsa_unlock(lsa); |
2465 | if (lsanext) | |
2466 | ospf6_lsa_unlock(lsanext); | |
d62a17ae | 2467 | break; |
2468 | } | |
2469 | ||
2470 | ospf6_lsa_age_update_to_send(lsa, oi->transdelay); | |
2471 | memcpy(p, lsa->header, sizeof(struct ospf6_lsa_header)); | |
2472 | p += sizeof(struct ospf6_lsa_header); | |
2473 | ||
e2e60c48 | 2474 | assert(lsa->lock == 2); |
d62a17ae | 2475 | ospf6_lsdb_remove(lsa, oi->lsack_list); |
2476 | lsa_cnt++; | |
2477 | } | |
2478 | ||
2479 | if (lsa_cnt) { | |
2480 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; | |
2481 | oh->length = htons(p - sendbuf); | |
2482 | ||
2483 | if ((oi->state == OSPF6_INTERFACE_POINTTOPOINT) | |
2484 | || (oi->state == OSPF6_INTERFACE_DR) | |
2485 | || (oi->state == OSPF6_INTERFACE_BDR)) | |
2486 | ospf6_send(oi->linklocal_addr, &allspfrouters6, oi, oh); | |
2487 | else | |
2488 | ospf6_send(oi->linklocal_addr, &alldrouters6, oi, oh); | |
2489 | } | |
2490 | ||
2491 | if (oi->lsack_list->count > 0) | |
2492 | thread_add_event(master, ospf6_lsack_send_interface, oi, 0, | |
2493 | &oi->thread_send_lsack); | |
2494 | ||
2495 | return 0; | |
718e3744 | 2496 | } |
2497 | ||
6b0655a2 | 2498 | |
508e53e2 | 2499 | /* Commands */ |
f44d0f5e | 2500 | DEFUN(debug_ospf6_message, debug_ospf6_message_cmd, |
2501 | "debug ospf6 message <unknown|hello|dbdesc|lsreq|lsupdate|lsack|all> [<send|recv|send-hdr|recv-hdr>]", | |
2502 | DEBUG_STR OSPF6_STR | |
2503 | "Debug OSPFv3 message\n" | |
2504 | "Debug Unknown message\n" | |
2505 | "Debug Hello message\n" | |
2506 | "Debug Database Description message\n" | |
2507 | "Debug Link State Request message\n" | |
2508 | "Debug Link State Update message\n" | |
2509 | "Debug Link State Acknowledgement message\n" | |
2510 | "Debug All message\n" | |
2511 | "Debug only sending message, entire packet\n" | |
2512 | "Debug only receiving message, entire packet\n" | |
2513 | "Debug only sending message, header only\n" | |
2514 | "Debug only receiving message, header only\n") | |
718e3744 | 2515 | { |
d62a17ae | 2516 | int idx_packet = 3; |
2517 | int idx_send_recv = 4; | |
2518 | unsigned char level = 0; | |
2519 | int type = 0; | |
2520 | int i; | |
2521 | ||
2522 | /* check type */ | |
2523 | if (!strncmp(argv[idx_packet]->arg, "u", 1)) | |
2524 | type = OSPF6_MESSAGE_TYPE_UNKNOWN; | |
2525 | else if (!strncmp(argv[idx_packet]->arg, "h", 1)) | |
2526 | type = OSPF6_MESSAGE_TYPE_HELLO; | |
2527 | else if (!strncmp(argv[idx_packet]->arg, "d", 1)) | |
2528 | type = OSPF6_MESSAGE_TYPE_DBDESC; | |
2529 | else if (!strncmp(argv[idx_packet]->arg, "lsr", 3)) | |
2530 | type = OSPF6_MESSAGE_TYPE_LSREQ; | |
2531 | else if (!strncmp(argv[idx_packet]->arg, "lsu", 3)) | |
2532 | type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2533 | else if (!strncmp(argv[idx_packet]->arg, "lsa", 3)) | |
2534 | type = OSPF6_MESSAGE_TYPE_LSACK; | |
2535 | else if (!strncmp(argv[idx_packet]->arg, "a", 1)) | |
2536 | type = OSPF6_MESSAGE_TYPE_ALL; | |
2537 | ||
2538 | if (argc == 4) | |
2539 | level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV; | |
f44d0f5e | 2540 | else if (!strncmp(argv[idx_send_recv]->arg, "send-h", 6)) |
2541 | level = OSPF6_DEBUG_MESSAGE_SEND_HDR; | |
d62a17ae | 2542 | else if (!strncmp(argv[idx_send_recv]->arg, "s", 1)) |
2543 | level = OSPF6_DEBUG_MESSAGE_SEND; | |
f44d0f5e | 2544 | else if (!strncmp(argv[idx_send_recv]->arg, "recv-h", 6)) |
2545 | level = OSPF6_DEBUG_MESSAGE_RECV_HDR; | |
d62a17ae | 2546 | else if (!strncmp(argv[idx_send_recv]->arg, "r", 1)) |
2547 | level = OSPF6_DEBUG_MESSAGE_RECV; | |
2548 | ||
2549 | if (type == OSPF6_MESSAGE_TYPE_ALL) { | |
2550 | for (i = 0; i < 6; i++) | |
2551 | OSPF6_DEBUG_MESSAGE_ON(i, level); | |
2552 | } else | |
2553 | OSPF6_DEBUG_MESSAGE_ON(type, level); | |
2554 | ||
2555 | return CMD_SUCCESS; | |
718e3744 | 2556 | } |
2557 | ||
f44d0f5e | 2558 | DEFUN(no_debug_ospf6_message, no_debug_ospf6_message_cmd, |
2559 | "no debug ospf6 message <unknown|hello|dbdesc|lsreq|lsupdate|lsack|all> [<send|recv|send-hdr|recv-hdr>]", | |
2560 | NO_STR DEBUG_STR OSPF6_STR | |
2561 | "Debug OSPFv3 message\n" | |
2562 | "Debug Unknown message\n" | |
2563 | "Debug Hello message\n" | |
2564 | "Debug Database Description message\n" | |
2565 | "Debug Link State Request message\n" | |
2566 | "Debug Link State Update message\n" | |
2567 | "Debug Link State Acknowledgement message\n" | |
2568 | "Debug All message\n" | |
2569 | "Debug only sending message, entire pkt\n" | |
2570 | "Debug only receiving message, entire pkt\n" | |
2571 | "Debug only sending message, header only\n" | |
2572 | "Debug only receiving message, header only\n") | |
508e53e2 | 2573 | { |
d62a17ae | 2574 | int idx_packet = 4; |
2575 | int idx_send_recv = 5; | |
2576 | unsigned char level = 0; | |
2577 | int type = 0; | |
2578 | int i; | |
2579 | ||
2580 | /* check type */ | |
2581 | if (!strncmp(argv[idx_packet]->arg, "u", 1)) | |
2582 | type = OSPF6_MESSAGE_TYPE_UNKNOWN; | |
2583 | else if (!strncmp(argv[idx_packet]->arg, "h", 1)) | |
2584 | type = OSPF6_MESSAGE_TYPE_HELLO; | |
2585 | else if (!strncmp(argv[idx_packet]->arg, "d", 1)) | |
2586 | type = OSPF6_MESSAGE_TYPE_DBDESC; | |
2587 | else if (!strncmp(argv[idx_packet]->arg, "lsr", 3)) | |
2588 | type = OSPF6_MESSAGE_TYPE_LSREQ; | |
2589 | else if (!strncmp(argv[idx_packet]->arg, "lsu", 3)) | |
2590 | type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2591 | else if (!strncmp(argv[idx_packet]->arg, "lsa", 3)) | |
2592 | type = OSPF6_MESSAGE_TYPE_LSACK; | |
2593 | else if (!strncmp(argv[idx_packet]->arg, "a", 1)) | |
2594 | type = OSPF6_MESSAGE_TYPE_ALL; | |
2595 | ||
2596 | if (argc == 5) | |
f44d0f5e | 2597 | level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV |
2598 | | OSPF6_DEBUG_MESSAGE_SEND_HDR | |
2599 | | OSPF6_DEBUG_MESSAGE_RECV_HDR; | |
2600 | else if (!strncmp(argv[idx_send_recv]->arg, "send-h", 6)) | |
2601 | level = OSPF6_DEBUG_MESSAGE_SEND_HDR; | |
d62a17ae | 2602 | else if (!strncmp(argv[idx_send_recv]->arg, "s", 1)) |
2603 | level = OSPF6_DEBUG_MESSAGE_SEND; | |
f44d0f5e | 2604 | else if (!strncmp(argv[idx_send_recv]->arg, "recv-h", 6)) |
2605 | level = OSPF6_DEBUG_MESSAGE_RECV_HDR; | |
d62a17ae | 2606 | else if (!strncmp(argv[idx_send_recv]->arg, "r", 1)) |
2607 | level = OSPF6_DEBUG_MESSAGE_RECV; | |
2608 | ||
2609 | if (type == OSPF6_MESSAGE_TYPE_ALL) { | |
2610 | for (i = 0; i < 6; i++) | |
2611 | OSPF6_DEBUG_MESSAGE_OFF(i, level); | |
2612 | } else | |
2613 | OSPF6_DEBUG_MESSAGE_OFF(type, level); | |
2614 | ||
2615 | return CMD_SUCCESS; | |
718e3744 | 2616 | } |
2617 | ||
508e53e2 | 2618 | |
d62a17ae | 2619 | int config_write_ospf6_debug_message(struct vty *vty) |
718e3744 | 2620 | { |
d62a17ae | 2621 | const char *type_str[] = {"unknown", "hello", "dbdesc", |
2622 | "lsreq", "lsupdate", "lsack"}; | |
f44d0f5e | 2623 | unsigned char s = 0, r = 0, sh = 0, rh = 0; |
d62a17ae | 2624 | int i; |
2625 | ||
2626 | for (i = 0; i < 6; i++) { | |
f44d0f5e | 2627 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND)) |
d62a17ae | 2628 | s |= 1 << i; |
f44d0f5e | 2629 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV)) |
d62a17ae | 2630 | r |= 1 << i; |
2631 | } | |
2632 | ||
f44d0f5e | 2633 | for (i = 0; i < 6; i++) { |
2634 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND_HDR)) | |
2635 | sh |= 1 << i; | |
2636 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV_HDR)) | |
2637 | rh |= 1 << i; | |
2638 | } | |
2639 | ||
d62a17ae | 2640 | if (s == 0x3f && r == 0x3f) { |
2641 | vty_out(vty, "debug ospf6 message all\n"); | |
2642 | return 0; | |
2643 | } | |
2644 | ||
2645 | if (s == 0x3f && r == 0) { | |
2646 | vty_out(vty, "debug ospf6 message all send\n"); | |
2647 | return 0; | |
2648 | } else if (s == 0 && r == 0x3f) { | |
2649 | vty_out(vty, "debug ospf6 message all recv\n"); | |
2650 | return 0; | |
2651 | } | |
2652 | ||
f44d0f5e | 2653 | if (sh == 0x3f && rh == 0) { |
2654 | vty_out(vty, "debug ospf6 message all send-hdr\n"); | |
2655 | return 0; | |
2656 | } else if (sh == 0 && rh == 0x3f) { | |
2657 | vty_out(vty, "debug ospf6 message all recv-hdr\n"); | |
2658 | return 0; | |
2659 | } | |
2660 | ||
d62a17ae | 2661 | /* Unknown message is logged by default */ |
2662 | if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, SEND) | |
2663 | && !IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) | |
2664 | vty_out(vty, "no debug ospf6 message unknown\n"); | |
2665 | else if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, SEND)) | |
2666 | vty_out(vty, "no debug ospf6 message unknown send\n"); | |
2667 | else if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) | |
2668 | vty_out(vty, "no debug ospf6 message unknown recv\n"); | |
2669 | ||
2670 | for (i = 1; i < 6; i++) { | |
f44d0f5e | 2671 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND) |
2672 | && IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV)) | |
d62a17ae | 2673 | vty_out(vty, "debug ospf6 message %s\n", type_str[i]); |
f44d0f5e | 2674 | else if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND)) |
d62a17ae | 2675 | vty_out(vty, "debug ospf6 message %s send\n", |
2676 | type_str[i]); | |
f44d0f5e | 2677 | else if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV)) |
d62a17ae | 2678 | vty_out(vty, "debug ospf6 message %s recv\n", |
2679 | type_str[i]); | |
f44d0f5e | 2680 | else if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND_HDR) |
2681 | && IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV_HDR)) | |
2682 | vty_out(vty, "debug ospf6 message %s; header only\n", | |
2683 | type_str[i]); | |
2684 | else if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV_HDR)) | |
2685 | vty_out(vty, "debug ospf6 message %s recv-hdr\n", | |
2686 | type_str[i]); | |
2687 | else if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND_HDR)) | |
2688 | vty_out(vty, "debug ospf6 message %s send-hdr\n", | |
2689 | type_str[i]); | |
d62a17ae | 2690 | } |
2691 | ||
2692 | return 0; | |
718e3744 | 2693 | } |
2694 | ||
d62a17ae | 2695 | void install_element_ospf6_debug_message(void) |
508e53e2 | 2696 | { |
d62a17ae | 2697 | install_element(ENABLE_NODE, &debug_ospf6_message_cmd); |
2698 | install_element(ENABLE_NODE, &no_debug_ospf6_message_cmd); | |
2699 | install_element(CONFIG_NODE, &debug_ospf6_message_cmd); | |
2700 | install_element(CONFIG_NODE, &no_debug_ospf6_message_cmd); | |
508e53e2 | 2701 | } |