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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 | |
4f785c07 RZ |
533 | && (IS_AREA_STUB(on->ospf6_if->area) |
534 | || IS_AREA_NSSA(on->ospf6_if->area))) { | |
d62a17ae | 535 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) |
536 | zlog_debug( | |
537 | "SeqNumMismatch (E-bit mismatch), discard"); | |
538 | ospf6_lsa_delete(his); | |
539 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
540 | NULL); | |
541 | return; | |
542 | } | |
543 | ||
544 | mine = ospf6_lsdb_lookup(his->header->type, his->header->id, | |
545 | his->header->adv_router, lsdb); | |
546 | if (mine == NULL) { | |
547 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
548 | zlog_debug("Add request (No database copy)"); | |
549 | ospf6_lsdb_add(ospf6_lsa_copy(his), on->request_list); | |
550 | } else if (ospf6_lsa_compare(his, mine) < 0) { | |
551 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
552 | zlog_debug("Add request (Received MoreRecent)"); | |
553 | ospf6_lsdb_add(ospf6_lsa_copy(his), on->request_list); | |
554 | } else { | |
555 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
556 | zlog_debug("Discard (Existing MoreRecent)"); | |
557 | } | |
558 | ospf6_lsa_delete(his); | |
559 | } | |
560 | ||
561 | assert(p == OSPF6_MESSAGE_END(oh)); | |
562 | ||
563 | /* Increment sequence number */ | |
564 | on->dbdesc_seqnum++; | |
565 | ||
566 | /* schedule send lsreq */ | |
567 | if (on->request_list->count) | |
568 | thread_add_event(master, ospf6_lsreq_send, on, 0, | |
569 | &on->thread_send_lsreq); | |
570 | ||
571 | THREAD_OFF(on->thread_send_dbdesc); | |
572 | ||
573 | /* More bit check */ | |
574 | if (!CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MBIT) | |
575 | && !CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MBIT)) | |
576 | thread_add_event(master, exchange_done, on, 0, NULL); | |
577 | else { | |
578 | on->thread_send_dbdesc = NULL; | |
579 | thread_add_event(master, ospf6_dbdesc_send_newone, on, 0, | |
580 | &on->thread_send_dbdesc); | |
581 | } | |
582 | ||
583 | /* save last received dbdesc */ | |
584 | memcpy(&on->dbdesc_last, dbdesc, sizeof(struct ospf6_dbdesc)); | |
718e3744 | 585 | } |
586 | ||
d62a17ae | 587 | static void ospf6_dbdesc_recv_slave(struct ospf6_header *oh, |
588 | struct ospf6_neighbor *on) | |
718e3744 | 589 | { |
d62a17ae | 590 | struct ospf6_dbdesc *dbdesc; |
591 | char *p; | |
592 | ||
593 | dbdesc = (struct ospf6_dbdesc *)((caddr_t)oh | |
594 | + sizeof(struct ospf6_header)); | |
595 | ||
596 | if (on->state < OSPF6_NEIGHBOR_INIT) { | |
f44d0f5e | 597 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 598 | zlog_debug("Neighbor state less than Init, ignore"); |
599 | return; | |
600 | } | |
601 | ||
602 | switch (on->state) { | |
603 | case OSPF6_NEIGHBOR_TWOWAY: | |
f44d0f5e | 604 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 605 | zlog_debug("Neighbor state is 2-Way, ignore"); |
606 | return; | |
607 | ||
608 | case OSPF6_NEIGHBOR_INIT: | |
609 | thread_execute(master, twoway_received, on, 0); | |
610 | if (on->state != OSPF6_NEIGHBOR_EXSTART) { | |
f44d0f5e | 611 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 612 | zlog_debug( |
613 | "Neighbor state is not ExStart, ignore"); | |
614 | return; | |
615 | } | |
616 | /* else fall through to ExStart */ | |
617 | /* fallthru */ | |
618 | case OSPF6_NEIGHBOR_EXSTART: | |
619 | /* If the neighbor is Master, act as Slave. Schedule | |
620 | negotiation_done | |
621 | and process LSA Headers. Otherwise, ignore this message */ | |
622 | if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT) | |
623 | && CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MBIT) | |
624 | && CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT) | |
625 | && ntohs(oh->length) | |
626 | == sizeof(struct ospf6_header) | |
627 | + sizeof(struct ospf6_dbdesc)) { | |
628 | /* set the master/slave bit to slave */ | |
629 | UNSET_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MSBIT); | |
630 | ||
631 | /* set the DD sequence number to one specified by master | |
632 | */ | |
633 | on->dbdesc_seqnum = ntohl(dbdesc->seqnum); | |
634 | ||
635 | /* schedule NegotiationDone */ | |
636 | thread_execute(master, negotiation_done, on, 0); | |
637 | ||
638 | /* Record neighbor options */ | |
639 | memcpy(on->options, dbdesc->options, | |
640 | sizeof(on->options)); | |
641 | } else { | |
ff99e5b6 | 642 | zlog_warn( |
643 | "VRF %s: Nbr %s Negotiation failed", | |
644 | vrf_id_to_name(on->ospf6_if->interface->vrf_id), | |
645 | on->name); | |
d62a17ae | 646 | return; |
647 | } | |
648 | break; | |
649 | ||
650 | case OSPF6_NEIGHBOR_EXCHANGE: | |
651 | if (!memcmp(dbdesc, &on->dbdesc_last, | |
652 | sizeof(struct ospf6_dbdesc))) { | |
653 | /* Duplicated DatabaseDescription causes slave to | |
654 | * retransmit */ | |
f44d0f5e | 655 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 656 | zlog_debug( |
657 | "Duplicated dbdesc causes retransmit"); | |
658 | THREAD_OFF(on->thread_send_dbdesc); | |
659 | on->thread_send_dbdesc = NULL; | |
660 | thread_add_event(master, ospf6_dbdesc_send, on, 0, | |
661 | &on->thread_send_dbdesc); | |
662 | return; | |
663 | } | |
664 | ||
665 | if (!CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT)) { | |
f44d0f5e | 666 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 667 | zlog_debug("Master/Slave bit mismatch"); |
668 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
669 | NULL); | |
670 | return; | |
671 | } | |
672 | ||
673 | if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT)) { | |
f44d0f5e | 674 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 675 | zlog_debug("Initialize bit mismatch"); |
676 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
677 | NULL); | |
678 | return; | |
679 | } | |
680 | ||
681 | if (memcmp(on->options, dbdesc->options, sizeof(on->options))) { | |
f44d0f5e | 682 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 683 | zlog_debug("Option field mismatch"); |
684 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
685 | NULL); | |
686 | return; | |
687 | } | |
688 | ||
689 | if (ntohl(dbdesc->seqnum) != on->dbdesc_seqnum + 1) { | |
f44d0f5e | 690 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 691 | zlog_debug( |
692 | "Sequence number mismatch (%#lx expected)", | |
d7c0a89a | 693 | (unsigned long)on->dbdesc_seqnum + 1); |
d62a17ae | 694 | thread_add_event(master, seqnumber_mismatch, on, 0, |
695 | NULL); | |
696 | return; | |
697 | } | |
698 | break; | |
699 | ||
700 | case OSPF6_NEIGHBOR_LOADING: | |
701 | case OSPF6_NEIGHBOR_FULL: | |
702 | if (!memcmp(dbdesc, &on->dbdesc_last, | |
703 | sizeof(struct ospf6_dbdesc))) { | |
704 | /* Duplicated DatabaseDescription causes slave to | |
705 | * retransmit */ | |
f44d0f5e | 706 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 707 | zlog_debug( |
708 | "Duplicated dbdesc causes retransmit"); | |
709 | THREAD_OFF(on->thread_send_dbdesc); | |
710 | thread_add_event(master, ospf6_dbdesc_send, on, 0, | |
711 | &on->thread_send_dbdesc); | |
712 | return; | |
713 | } | |
714 | ||
f44d0f5e | 715 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 716 | zlog_debug("Not duplicate dbdesc in state %s", |
717 | ospf6_neighbor_state_str[on->state]); | |
718 | thread_add_event(master, seqnumber_mismatch, on, 0, NULL); | |
719 | return; | |
720 | ||
721 | default: | |
722 | assert(0); | |
723 | break; | |
724 | } | |
725 | ||
726 | /* Process LSA headers */ | |
727 | for (p = (char *)((caddr_t)dbdesc + sizeof(struct ospf6_dbdesc)); | |
728 | p + sizeof(struct ospf6_lsa_header) <= OSPF6_MESSAGE_END(oh); | |
729 | p += sizeof(struct ospf6_lsa_header)) { | |
730 | struct ospf6_lsa *his, *mine; | |
731 | struct ospf6_lsdb *lsdb = NULL; | |
732 | ||
733 | his = ospf6_lsa_create_headeronly((struct ospf6_lsa_header *)p); | |
734 | ||
735 | switch (OSPF6_LSA_SCOPE(his->header->type)) { | |
736 | case OSPF6_SCOPE_LINKLOCAL: | |
737 | lsdb = on->ospf6_if->lsdb; | |
738 | break; | |
739 | case OSPF6_SCOPE_AREA: | |
740 | lsdb = on->ospf6_if->area->lsdb; | |
741 | break; | |
742 | case OSPF6_SCOPE_AS: | |
743 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
744 | break; | |
745 | case OSPF6_SCOPE_RESERVED: | |
746 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
747 | zlog_debug("Ignoring LSA of reserved scope"); | |
748 | ospf6_lsa_delete(his); | |
749 | continue; | |
750 | break; | |
751 | } | |
752 | ||
753 | if (OSPF6_LSA_SCOPE(his->header->type) == OSPF6_SCOPE_AS | |
4f785c07 RZ |
754 | && (IS_AREA_STUB(on->ospf6_if->area) |
755 | || IS_AREA_NSSA(on->ospf6_if->area))) { | |
d62a17ae | 756 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) |
757 | zlog_debug("E-bit mismatch with LSA Headers"); | |
758 | ospf6_lsa_delete(his); | |
759 | thread_add_event(master, seqnumber_mismatch, on, 0, | |
760 | NULL); | |
761 | return; | |
762 | } | |
763 | ||
764 | mine = ospf6_lsdb_lookup(his->header->type, his->header->id, | |
765 | his->header->adv_router, lsdb); | |
766 | if (mine == NULL || ospf6_lsa_compare(his, mine) < 0) { | |
767 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
768 | zlog_debug("Add request-list: %s", his->name); | |
769 | ospf6_lsdb_add(ospf6_lsa_copy(his), on->request_list); | |
770 | } | |
771 | ospf6_lsa_delete(his); | |
772 | } | |
773 | ||
774 | assert(p == OSPF6_MESSAGE_END(oh)); | |
775 | ||
776 | /* Set sequence number to Master's */ | |
777 | on->dbdesc_seqnum = ntohl(dbdesc->seqnum); | |
778 | ||
779 | /* schedule send lsreq */ | |
780 | if (on->request_list->count) | |
781 | thread_add_event(master, ospf6_lsreq_send, on, 0, | |
782 | &on->thread_send_lsreq); | |
783 | ||
784 | THREAD_OFF(on->thread_send_dbdesc); | |
785 | thread_add_event(master, ospf6_dbdesc_send_newone, on, 0, | |
786 | &on->thread_send_dbdesc); | |
787 | ||
788 | /* save last received dbdesc */ | |
789 | memcpy(&on->dbdesc_last, dbdesc, sizeof(struct ospf6_dbdesc)); | |
718e3744 | 790 | } |
791 | ||
d62a17ae | 792 | static void ospf6_dbdesc_recv(struct in6_addr *src, struct in6_addr *dst, |
793 | struct ospf6_interface *oi, | |
794 | struct ospf6_header *oh) | |
718e3744 | 795 | { |
d62a17ae | 796 | struct ospf6_neighbor *on; |
797 | struct ospf6_dbdesc *dbdesc; | |
798 | ||
799 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
800 | if (on == NULL) { | |
f44d0f5e | 801 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 802 | zlog_debug("Neighbor not found, ignore"); |
803 | return; | |
804 | } | |
805 | ||
806 | dbdesc = (struct ospf6_dbdesc *)((caddr_t)oh | |
807 | + sizeof(struct ospf6_header)); | |
808 | ||
809 | /* Interface MTU check */ | |
810 | if (!oi->mtu_ignore && ntohs(dbdesc->ifmtu) != oi->ifmtu) { | |
ff99e5b6 | 811 | zlog_warn("VRF %s: I/F %s MTU mismatch (my %d rcvd %d)", |
812 | vrf_id_to_name(oi->interface->vrf_id), | |
813 | oi->interface->name, oi->ifmtu, ntohs(dbdesc->ifmtu)); | |
d62a17ae | 814 | return; |
815 | } | |
816 | ||
817 | if (dbdesc->reserved1 || dbdesc->reserved2) { | |
f44d0f5e | 818 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 819 | zlog_debug( |
820 | "Non-0 reserved field in %s's DbDesc, correct", | |
821 | on->name); | |
822 | dbdesc->reserved1 = 0; | |
823 | dbdesc->reserved2 = 0; | |
824 | } | |
825 | ||
43855e3d CS |
826 | oi->db_desc_in++; |
827 | ||
beadc736 | 828 | if (ntohl(oh->router_id) < ntohl(oi->area->ospf6->router_id)) |
d62a17ae | 829 | ospf6_dbdesc_recv_master(oh, on); |
beadc736 | 830 | else if (ntohl(oi->area->ospf6->router_id) < ntohl(oh->router_id)) |
d62a17ae | 831 | ospf6_dbdesc_recv_slave(oh, on); |
832 | else { | |
f44d0f5e | 833 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 834 | zlog_debug("Can't decide which is master, ignore"); |
835 | } | |
718e3744 | 836 | } |
837 | ||
d62a17ae | 838 | static void ospf6_lsreq_recv(struct in6_addr *src, struct in6_addr *dst, |
839 | struct ospf6_interface *oi, | |
840 | struct ospf6_header *oh) | |
718e3744 | 841 | { |
d62a17ae | 842 | struct ospf6_neighbor *on; |
843 | char *p; | |
844 | struct ospf6_lsreq_entry *e; | |
845 | struct ospf6_lsdb *lsdb = NULL; | |
846 | struct ospf6_lsa *lsa; | |
847 | ||
848 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
849 | if (on == NULL) { | |
f44d0f5e | 850 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 851 | zlog_debug("Neighbor not found, ignore"); |
852 | return; | |
853 | } | |
854 | ||
855 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE | |
856 | && on->state != OSPF6_NEIGHBOR_LOADING | |
857 | && on->state != OSPF6_NEIGHBOR_FULL) { | |
f44d0f5e | 858 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 859 | zlog_debug("Neighbor state less than Exchange, ignore"); |
860 | return; | |
861 | } | |
862 | ||
43855e3d CS |
863 | oi->ls_req_in++; |
864 | ||
d62a17ae | 865 | /* Process each request */ |
866 | for (p = (char *)((caddr_t)oh + sizeof(struct ospf6_header)); | |
867 | p + sizeof(struct ospf6_lsreq_entry) <= OSPF6_MESSAGE_END(oh); | |
868 | p += sizeof(struct ospf6_lsreq_entry)) { | |
869 | e = (struct ospf6_lsreq_entry *)p; | |
870 | ||
871 | switch (OSPF6_LSA_SCOPE(e->type)) { | |
872 | case OSPF6_SCOPE_LINKLOCAL: | |
873 | lsdb = on->ospf6_if->lsdb; | |
874 | break; | |
875 | case OSPF6_SCOPE_AREA: | |
876 | lsdb = on->ospf6_if->area->lsdb; | |
877 | break; | |
878 | case OSPF6_SCOPE_AS: | |
879 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
880 | break; | |
881 | default: | |
882 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
883 | zlog_debug("Ignoring LSA of reserved scope"); | |
884 | continue; | |
885 | break; | |
886 | } | |
887 | ||
888 | /* Find database copy */ | |
889 | lsa = ospf6_lsdb_lookup(e->type, e->id, e->adv_router, lsdb); | |
890 | if (lsa == NULL) { | |
d62a17ae | 891 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) { |
d62a17ae | 892 | zlog_debug( |
d47b448d DS |
893 | "Can't find requested [%s Id:%pI4 Adv:%pI4]", |
894 | ospf6_lstype_name(e->type), &e->id, | |
895 | &e->adv_router); | |
d62a17ae | 896 | } |
897 | thread_add_event(master, bad_lsreq, on, 0, NULL); | |
898 | return; | |
899 | } | |
900 | ||
901 | ospf6_lsdb_add(ospf6_lsa_copy(lsa), on->lsupdate_list); | |
902 | } | |
903 | ||
904 | assert(p == OSPF6_MESSAGE_END(oh)); | |
905 | ||
906 | /* schedule send lsupdate */ | |
907 | THREAD_OFF(on->thread_send_lsupdate); | |
908 | thread_add_event(master, ospf6_lsupdate_send_neighbor, on, 0, | |
909 | &on->thread_send_lsupdate); | |
718e3744 | 910 | } |
911 | ||
abc7ef44 DO |
912 | /* Verify, that the specified memory area contains exactly N valid IPv6 |
913 | prefixes as specified by RFC5340, A.4.1. */ | |
d62a17ae | 914 | static unsigned ospf6_prefixes_examin( |
915 | struct ospf6_prefix *current, /* start of buffer */ | |
916 | unsigned length, | |
d7c0a89a | 917 | const uint32_t req_num_pfxs /* always compared with the actual number |
d62a17ae | 918 | of prefixes */ |
d7c0a89a | 919 | ) |
abc7ef44 | 920 | { |
d7c0a89a QY |
921 | uint8_t requested_pfx_bytes; |
922 | uint32_t real_num_pfxs = 0; | |
d62a17ae | 923 | |
924 | while (length) { | |
925 | if (length < OSPF6_PREFIX_MIN_SIZE) { | |
926 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 927 | RECV_HDR)) |
d62a17ae | 928 | zlog_debug("%s: undersized IPv6 prefix header", |
929 | __func__); | |
930 | return MSG_NG; | |
931 | } | |
932 | /* safe to look deeper */ | |
933 | if (current->prefix_length > IPV6_MAX_BITLEN) { | |
934 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 935 | RECV_HDR)) |
d62a17ae | 936 | zlog_debug("%s: invalid PrefixLength (%u bits)", |
937 | __func__, current->prefix_length); | |
938 | return MSG_NG; | |
939 | } | |
940 | /* covers both fixed- and variable-sized fields */ | |
941 | requested_pfx_bytes = | |
942 | OSPF6_PREFIX_MIN_SIZE | |
943 | + OSPF6_PREFIX_SPACE(current->prefix_length); | |
944 | if (requested_pfx_bytes > length) { | |
945 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 946 | RECV_HDR)) |
d62a17ae | 947 | zlog_debug("%s: undersized IPv6 prefix", |
948 | __func__); | |
949 | return MSG_NG; | |
950 | } | |
951 | /* next prefix */ | |
952 | length -= requested_pfx_bytes; | |
953 | current = (struct ospf6_prefix *)((caddr_t)current | |
954 | + requested_pfx_bytes); | |
955 | real_num_pfxs++; | |
956 | } | |
957 | if (real_num_pfxs != req_num_pfxs) { | |
f44d0f5e | 958 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
959 | RECV_HDR)) | |
d62a17ae | 960 | zlog_debug( |
961 | "%s: IPv6 prefix number mismatch (%u required, %u real)", | |
962 | __func__, req_num_pfxs, real_num_pfxs); | |
963 | return MSG_NG; | |
964 | } | |
965 | return MSG_OK; | |
abc7ef44 DO |
966 | } |
967 | ||
968 | /* Verify an LSA to have a valid length and dispatch further (where | |
969 | appropriate) to check if the contents, including nested IPv6 prefixes, | |
970 | is properly sized/aligned within the LSA. Note that this function gets | |
971 | LSA type in network byte order, uses in host byte order and passes to | |
972 | ospf6_lstype_name() in network byte order again. */ | |
d62a17ae | 973 | static unsigned ospf6_lsa_examin(struct ospf6_lsa_header *lsah, |
d7c0a89a QY |
974 | const uint16_t lsalen, |
975 | const uint8_t headeronly) | |
abc7ef44 | 976 | { |
d62a17ae | 977 | struct ospf6_intra_prefix_lsa *intra_prefix_lsa; |
978 | struct ospf6_as_external_lsa *as_external_lsa; | |
979 | struct ospf6_link_lsa *link_lsa; | |
980 | unsigned exp_length; | |
d7c0a89a QY |
981 | uint8_t ltindex; |
982 | uint16_t lsatype; | |
d62a17ae | 983 | |
984 | /* In case an additional minimum length constraint is defined for | |
985 | current | |
986 | LSA type, make sure that this constraint is met. */ | |
987 | lsatype = ntohs(lsah->type); | |
988 | ltindex = lsatype & OSPF6_LSTYPE_FCODE_MASK; | |
989 | if (ltindex < OSPF6_LSTYPE_SIZE && ospf6_lsa_minlen[ltindex] | |
990 | && lsalen < ospf6_lsa_minlen[ltindex] + OSPF6_LSA_HEADER_SIZE) { | |
f44d0f5e | 991 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
992 | RECV_HDR)) | |
d62a17ae | 993 | zlog_debug("%s: undersized (%u B) LSA", __func__, |
994 | lsalen); | |
995 | return MSG_NG; | |
996 | } | |
997 | switch (lsatype) { | |
998 | case OSPF6_LSTYPE_ROUTER: | |
999 | /* RFC5340 A.4.3, LSA header + OSPF6_ROUTER_LSA_MIN_SIZE bytes | |
1000 | followed | |
1001 | by N>=0 interface descriptions. */ | |
1002 | if ((lsalen - OSPF6_LSA_HEADER_SIZE - OSPF6_ROUTER_LSA_MIN_SIZE) | |
1003 | % OSPF6_ROUTER_LSDESC_FIX_SIZE) { | |
1004 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1005 | RECV_HDR)) |
d62a17ae | 1006 | zlog_debug( |
1007 | "%s: interface description alignment error", | |
1008 | __func__); | |
1009 | return MSG_NG; | |
1010 | } | |
1011 | break; | |
1012 | case OSPF6_LSTYPE_NETWORK: | |
1013 | /* RFC5340 A.4.4, LSA header + OSPF6_NETWORK_LSA_MIN_SIZE bytes | |
1014 | followed by N>=0 attached router descriptions. */ | |
1015 | if ((lsalen - OSPF6_LSA_HEADER_SIZE | |
1016 | - OSPF6_NETWORK_LSA_MIN_SIZE) | |
1017 | % OSPF6_NETWORK_LSDESC_FIX_SIZE) { | |
1018 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1019 | RECV_HDR)) |
d62a17ae | 1020 | zlog_debug( |
1021 | "%s: router description alignment error", | |
1022 | __func__); | |
1023 | return MSG_NG; | |
1024 | } | |
1025 | break; | |
1026 | case OSPF6_LSTYPE_INTER_PREFIX: | |
1027 | /* RFC5340 A.4.5, LSA header + OSPF6_INTER_PREFIX_LSA_MIN_SIZE | |
1028 | bytes | |
1029 | followed by 3-4 fields of a single IPv6 prefix. */ | |
1030 | if (headeronly) | |
1031 | break; | |
1032 | return ospf6_prefixes_examin( | |
1033 | (struct ospf6_prefix | |
1034 | *)((caddr_t)lsah + OSPF6_LSA_HEADER_SIZE | |
1035 | + OSPF6_INTER_PREFIX_LSA_MIN_SIZE), | |
1036 | lsalen - OSPF6_LSA_HEADER_SIZE | |
1037 | - OSPF6_INTER_PREFIX_LSA_MIN_SIZE, | |
1038 | 1); | |
1039 | case OSPF6_LSTYPE_INTER_ROUTER: | |
1040 | /* RFC5340 A.4.6, fixed-size LSA. */ | |
1041 | if (lsalen | |
1042 | > OSPF6_LSA_HEADER_SIZE + OSPF6_INTER_ROUTER_LSA_FIX_SIZE) { | |
1043 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1044 | RECV_HDR)) |
d62a17ae | 1045 | zlog_debug("%s: oversized (%u B) LSA", __func__, |
1046 | lsalen); | |
1047 | return MSG_NG; | |
1048 | } | |
1049 | break; | |
1050 | case OSPF6_LSTYPE_AS_EXTERNAL: /* RFC5340 A.4.7, same as A.4.8. */ | |
1051 | case OSPF6_LSTYPE_TYPE_7: | |
1052 | /* RFC5340 A.4.8, LSA header + OSPF6_AS_EXTERNAL_LSA_MIN_SIZE | |
1053 | bytes | |
1054 | followed by 3-4 fields of IPv6 prefix and 3 conditional LSA | |
1055 | fields: | |
1056 | 16 bytes of forwarding address, 4 bytes of external route | |
1057 | tag, | |
1058 | 4 bytes of referenced link state ID. */ | |
1059 | if (headeronly) | |
1060 | break; | |
1061 | as_external_lsa = | |
1062 | (struct ospf6_as_external_lsa | |
1063 | *)((caddr_t)lsah + OSPF6_LSA_HEADER_SIZE); | |
1064 | exp_length = | |
1065 | OSPF6_LSA_HEADER_SIZE + OSPF6_AS_EXTERNAL_LSA_MIN_SIZE; | |
1066 | /* To find out if the last optional field (Referenced Link State | |
1067 | ID) is | |
1068 | assumed in this LSA, we need to access fixed fields of the | |
1069 | IPv6 | |
1070 | prefix before ospf6_prefix_examin() confirms its sizing. */ | |
1071 | if (exp_length + OSPF6_PREFIX_MIN_SIZE > lsalen) { | |
1072 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1073 | RECV_HDR)) |
d62a17ae | 1074 | zlog_debug("%s: undersized (%u B) LSA header", |
1075 | __func__, lsalen); | |
1076 | return MSG_NG; | |
1077 | } | |
1078 | /* forwarding address */ | |
1079 | if (CHECK_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_F)) | |
1080 | exp_length += 16; | |
1081 | /* external route tag */ | |
1082 | if (CHECK_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_T)) | |
1083 | exp_length += 4; | |
1084 | /* referenced link state ID */ | |
1085 | if (as_external_lsa->prefix.u._prefix_referenced_lstype) | |
1086 | exp_length += 4; | |
1087 | /* All the fixed-size fields (mandatory and optional) must fit. | |
1088 | I.e., | |
1089 | this check does not include any IPv6 prefix fields. */ | |
1090 | if (exp_length > lsalen) { | |
1091 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1092 | RECV_HDR)) |
d62a17ae | 1093 | zlog_debug("%s: undersized (%u B) LSA header", |
1094 | __func__, lsalen); | |
1095 | return MSG_NG; | |
1096 | } | |
1097 | /* The last call completely covers the remainder (IPv6 prefix). | |
1098 | */ | |
1099 | return ospf6_prefixes_examin( | |
1100 | (struct ospf6_prefix | |
1101 | *)((caddr_t)as_external_lsa | |
1102 | + OSPF6_AS_EXTERNAL_LSA_MIN_SIZE), | |
1103 | lsalen - exp_length, 1); | |
1104 | case OSPF6_LSTYPE_LINK: | |
1105 | /* RFC5340 A.4.9, LSA header + OSPF6_LINK_LSA_MIN_SIZE bytes | |
1106 | followed | |
1107 | by N>=0 IPv6 prefix blocks (with N declared beforehand). */ | |
1108 | if (headeronly) | |
1109 | break; | |
1110 | link_lsa = (struct ospf6_link_lsa *)((caddr_t)lsah | |
1111 | + OSPF6_LSA_HEADER_SIZE); | |
1112 | return ospf6_prefixes_examin( | |
1113 | (struct ospf6_prefix *)((caddr_t)link_lsa | |
1114 | + OSPF6_LINK_LSA_MIN_SIZE), | |
1115 | lsalen - OSPF6_LSA_HEADER_SIZE | |
1116 | - OSPF6_LINK_LSA_MIN_SIZE, | |
1117 | ntohl(link_lsa->prefix_num) /* 32 bits */ | |
9d303b37 | 1118 | ); |
d62a17ae | 1119 | case OSPF6_LSTYPE_INTRA_PREFIX: |
1120 | /* RFC5340 A.4.10, LSA header + OSPF6_INTRA_PREFIX_LSA_MIN_SIZE | |
1121 | bytes | |
1122 | followed by N>=0 IPv6 prefixes (with N declared beforehand). | |
1123 | */ | |
1124 | if (headeronly) | |
1125 | break; | |
1126 | intra_prefix_lsa = | |
1127 | (struct ospf6_intra_prefix_lsa | |
1128 | *)((caddr_t)lsah + OSPF6_LSA_HEADER_SIZE); | |
1129 | return ospf6_prefixes_examin( | |
1130 | (struct ospf6_prefix | |
1131 | *)((caddr_t)intra_prefix_lsa | |
1132 | + OSPF6_INTRA_PREFIX_LSA_MIN_SIZE), | |
1133 | lsalen - OSPF6_LSA_HEADER_SIZE | |
1134 | - OSPF6_INTRA_PREFIX_LSA_MIN_SIZE, | |
1135 | ntohs(intra_prefix_lsa->prefix_num) /* 16 bits */ | |
9d303b37 | 1136 | ); |
d62a17ae | 1137 | } |
1138 | /* No additional validation is possible for unknown LSA types, which are | |
1139 | themselves valid in OPSFv3, hence the default decision is to accept. | |
1140 | */ | |
1141 | return MSG_OK; | |
abc7ef44 DO |
1142 | } |
1143 | ||
1144 | /* Verify if the provided input buffer is a valid sequence of LSAs. This | |
1145 | includes verification of LSA blocks length/alignment and dispatching | |
1146 | of deeper-level checks. */ | |
1147 | static unsigned | |
d62a17ae | 1148 | ospf6_lsaseq_examin(struct ospf6_lsa_header *lsah, /* start of buffered data */ |
d7c0a89a | 1149 | size_t length, const uint8_t headeronly, |
d62a17ae | 1150 | /* When declared_num_lsas is not 0, compare it to the real |
1151 | number of LSAs | |
1152 | and treat the difference as an error. */ | |
d7c0a89a | 1153 | const uint32_t declared_num_lsas) |
abc7ef44 | 1154 | { |
d7c0a89a | 1155 | uint32_t counted_lsas = 0; |
d62a17ae | 1156 | |
1157 | while (length) { | |
d7c0a89a | 1158 | uint16_t lsalen; |
d62a17ae | 1159 | if (length < OSPF6_LSA_HEADER_SIZE) { |
1160 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1161 | RECV_HDR)) |
d62a17ae | 1162 | zlog_debug( |
1163 | "%s: undersized (%zu B) trailing (#%u) LSA header", | |
1164 | __func__, length, counted_lsas); | |
1165 | return MSG_NG; | |
1166 | } | |
1167 | /* save on ntohs() calls here and in the LSA validator */ | |
1168 | lsalen = OSPF6_LSA_SIZE(lsah); | |
1169 | if (lsalen < OSPF6_LSA_HEADER_SIZE) { | |
1170 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, | |
f44d0f5e | 1171 | RECV_HDR)) |
d62a17ae | 1172 | zlog_debug( |
1173 | "%s: malformed LSA header #%u, declared length is %u B", | |
1174 | __func__, counted_lsas, lsalen); | |
1175 | return MSG_NG; | |
1176 | } | |
1177 | if (headeronly) { | |
1178 | /* less checks here and in ospf6_lsa_examin() */ | |
1179 | if (MSG_OK != ospf6_lsa_examin(lsah, lsalen, 1)) { | |
1180 | if (IS_OSPF6_DEBUG_MESSAGE( | |
f44d0f5e | 1181 | OSPF6_MESSAGE_TYPE_UNKNOWN, |
1182 | RECV_HDR)) | |
d62a17ae | 1183 | zlog_debug( |
1184 | "%s: anomaly in header-only %s LSA #%u", | |
1185 | __func__, | |
1186 | ospf6_lstype_name(lsah->type), | |
1187 | counted_lsas); | |
1188 | return MSG_NG; | |
1189 | } | |
1190 | lsah = (struct ospf6_lsa_header | |
1191 | *)((caddr_t)lsah | |
1192 | + OSPF6_LSA_HEADER_SIZE); | |
1193 | length -= OSPF6_LSA_HEADER_SIZE; | |
1194 | } else { | |
1195 | /* make sure the input buffer is deep enough before | |
1196 | * further checks */ | |
1197 | if (lsalen > length) { | |
1198 | if (IS_OSPF6_DEBUG_MESSAGE( | |
f44d0f5e | 1199 | OSPF6_MESSAGE_TYPE_UNKNOWN, |
1200 | RECV_HDR)) | |
d62a17ae | 1201 | zlog_debug( |
1202 | "%s: anomaly in %s LSA #%u: declared length is %u B, buffered length is %zu B", | |
1203 | __func__, | |
1204 | ospf6_lstype_name(lsah->type), | |
1205 | counted_lsas, lsalen, length); | |
1206 | return MSG_NG; | |
1207 | } | |
1208 | if (MSG_OK != ospf6_lsa_examin(lsah, lsalen, 0)) { | |
1209 | if (IS_OSPF6_DEBUG_MESSAGE( | |
f44d0f5e | 1210 | OSPF6_MESSAGE_TYPE_UNKNOWN, |
1211 | RECV_HDR)) | |
d62a17ae | 1212 | zlog_debug( |
1213 | "%s: anomaly in %s LSA #%u", | |
1214 | __func__, | |
1215 | ospf6_lstype_name(lsah->type), | |
1216 | counted_lsas); | |
1217 | return MSG_NG; | |
1218 | } | |
1219 | lsah = (struct ospf6_lsa_header *)((caddr_t)lsah | |
1220 | + lsalen); | |
1221 | length -= lsalen; | |
1222 | } | |
1223 | counted_lsas++; | |
1224 | } | |
1225 | ||
1226 | if (declared_num_lsas && counted_lsas != declared_num_lsas) { | |
f44d0f5e | 1227 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1228 | RECV_HDR)) | |
d62a17ae | 1229 | zlog_debug( |
1230 | "%s: #LSAs declared (%u) does not match actual (%u)", | |
1231 | __func__, declared_num_lsas, counted_lsas); | |
1232 | return MSG_NG; | |
1233 | } | |
1234 | return MSG_OK; | |
abc7ef44 DO |
1235 | } |
1236 | ||
1237 | /* Verify a complete OSPF packet for proper sizing/alignment. */ | |
d62a17ae | 1238 | static unsigned ospf6_packet_examin(struct ospf6_header *oh, |
1239 | const unsigned bytesonwire) | |
abc7ef44 | 1240 | { |
d62a17ae | 1241 | struct ospf6_lsupdate *lsupd; |
1242 | unsigned test; | |
1243 | ||
1244 | /* length, 1st approximation */ | |
1245 | if (bytesonwire < OSPF6_HEADER_SIZE) { | |
f44d0f5e | 1246 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1247 | RECV_HDR)) | |
d62a17ae | 1248 | zlog_debug("%s: undersized (%u B) packet", __func__, |
1249 | bytesonwire); | |
1250 | return MSG_NG; | |
1251 | } | |
1252 | /* Now it is safe to access header fields. */ | |
1253 | if (bytesonwire != ntohs(oh->length)) { | |
f44d0f5e | 1254 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1255 | RECV_HDR)) | |
d62a17ae | 1256 | zlog_debug( |
1ba43456 CS |
1257 | "%s: %s packet length error (%u real, %u declared)", |
1258 | __func__, lookup_msg(ospf6_message_type_str, | |
1259 | oh->type, NULL), | |
1260 | bytesonwire, ntohs(oh->length)); | |
d62a17ae | 1261 | return MSG_NG; |
1262 | } | |
1263 | /* version check */ | |
1264 | if (oh->version != OSPFV3_VERSION) { | |
f44d0f5e | 1265 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1266 | RECV_HDR)) | |
d62a17ae | 1267 | zlog_debug("%s: invalid (%u) protocol version", |
1268 | __func__, oh->version); | |
1269 | return MSG_NG; | |
1270 | } | |
1271 | /* length, 2nd approximation */ | |
1272 | if (oh->type < OSPF6_MESSAGE_TYPE_ALL && ospf6_packet_minlen[oh->type] | |
1273 | && bytesonwire | |
1274 | < OSPF6_HEADER_SIZE + ospf6_packet_minlen[oh->type]) { | |
f44d0f5e | 1275 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1276 | RECV_HDR)) | |
d62a17ae | 1277 | zlog_debug("%s: undersized (%u B) %s packet", __func__, |
1278 | bytesonwire, | |
1279 | lookup_msg(ospf6_message_type_str, oh->type, | |
1280 | NULL)); | |
1281 | return MSG_NG; | |
1282 | } | |
1283 | /* type-specific deeper validation */ | |
1284 | switch (oh->type) { | |
1285 | case OSPF6_MESSAGE_TYPE_HELLO: | |
1286 | /* RFC5340 A.3.2, packet header + OSPF6_HELLO_MIN_SIZE bytes | |
1287 | followed | |
1288 | by N>=0 router-IDs. */ | |
1289 | if (0 | |
1290 | == (bytesonwire - OSPF6_HEADER_SIZE - OSPF6_HELLO_MIN_SIZE) | |
1291 | % 4) | |
1292 | return MSG_OK; | |
f44d0f5e | 1293 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1294 | RECV_HDR)) | |
d62a17ae | 1295 | zlog_debug("%s: alignment error in %s packet", __func__, |
1296 | lookup_msg(ospf6_message_type_str, oh->type, | |
1297 | NULL)); | |
1298 | return MSG_NG; | |
1299 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1300 | /* RFC5340 A.3.3, packet header + OSPF6_DB_DESC_MIN_SIZE bytes | |
1301 | followed | |
1302 | by N>=0 header-only LSAs. */ | |
1303 | test = ospf6_lsaseq_examin( | |
1304 | (struct ospf6_lsa_header *)((caddr_t)oh | |
1305 | + OSPF6_HEADER_SIZE | |
1306 | + OSPF6_DB_DESC_MIN_SIZE), | |
1307 | bytesonwire - OSPF6_HEADER_SIZE | |
1308 | - OSPF6_DB_DESC_MIN_SIZE, | |
1309 | 1, 0); | |
1310 | break; | |
1311 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1312 | /* RFC5340 A.3.4, packet header + N>=0 LS description blocks. */ | |
1313 | if (0 | |
1314 | == (bytesonwire - OSPF6_HEADER_SIZE - OSPF6_LS_REQ_MIN_SIZE) | |
1315 | % OSPF6_LSREQ_LSDESC_FIX_SIZE) | |
1316 | return MSG_OK; | |
f44d0f5e | 1317 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1318 | RECV_HDR)) | |
d62a17ae | 1319 | zlog_debug("%s: alignment error in %s packet", __func__, |
1320 | lookup_msg(ospf6_message_type_str, oh->type, | |
1321 | NULL)); | |
1322 | return MSG_NG; | |
1323 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1324 | /* RFC5340 A.3.5, packet header + OSPF6_LS_UPD_MIN_SIZE bytes | |
1325 | followed | |
1326 | by N>=0 full LSAs (with N declared beforehand). */ | |
1327 | lsupd = (struct ospf6_lsupdate *)((caddr_t)oh | |
1328 | + OSPF6_HEADER_SIZE); | |
1329 | test = ospf6_lsaseq_examin( | |
1330 | (struct ospf6_lsa_header *)((caddr_t)lsupd | |
1331 | + OSPF6_LS_UPD_MIN_SIZE), | |
1332 | bytesonwire - OSPF6_HEADER_SIZE - OSPF6_LS_UPD_MIN_SIZE, | |
1333 | 0, ntohl(lsupd->lsa_number) /* 32 bits */ | |
9d303b37 | 1334 | ); |
d62a17ae | 1335 | break; |
1336 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1337 | /* RFC5340 A.3.6, packet header + N>=0 header-only LSAs. */ | |
1338 | test = ospf6_lsaseq_examin( | |
1339 | (struct ospf6_lsa_header *)((caddr_t)oh | |
1340 | + OSPF6_HEADER_SIZE | |
1341 | + OSPF6_LS_ACK_MIN_SIZE), | |
1342 | bytesonwire - OSPF6_HEADER_SIZE - OSPF6_LS_ACK_MIN_SIZE, | |
1343 | 1, 0); | |
1344 | break; | |
1345 | default: | |
f44d0f5e | 1346 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1347 | RECV_HDR)) | |
d62a17ae | 1348 | zlog_debug("%s: invalid (%u) message type", __func__, |
1349 | oh->type); | |
1350 | return MSG_NG; | |
1351 | } | |
1352 | if (test != MSG_OK | |
f44d0f5e | 1353 | && IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, RECV_HDR)) |
d62a17ae | 1354 | zlog_debug("%s: anomaly in %s packet", __func__, |
1355 | lookup_msg(ospf6_message_type_str, oh->type, NULL)); | |
1356 | return test; | |
abc7ef44 DO |
1357 | } |
1358 | ||
1359 | /* Verify particular fields of otherwise correct received OSPF packet to | |
1360 | meet the requirements of RFC. */ | |
d62a17ae | 1361 | static int ospf6_rxpacket_examin(struct ospf6_interface *oi, |
1362 | struct ospf6_header *oh, | |
1363 | const unsigned bytesonwire) | |
abc7ef44 | 1364 | { |
d62a17ae | 1365 | |
1366 | if (MSG_OK != ospf6_packet_examin(oh, bytesonwire)) | |
1367 | return MSG_NG; | |
1368 | ||
1369 | /* Area-ID check */ | |
1370 | if (oh->area_id != oi->area->area_id) { | |
ff99e5b6 | 1371 | if (oh->area_id == OSPF_AREA_BACKBONE) |
1372 | zlog_warn( | |
1373 | "VRF %s: I/F %s Message may be via Virtual Link: not supported", | |
1374 | vrf_id_to_name(oi->interface->vrf_id), | |
1375 | oi->interface->name); | |
1376 | else | |
1377 | zlog_warn( | |
d47b448d | 1378 | "VRF %s: I/F %s Area-ID mismatch (my %pI4, rcvd %pI4)", |
ff99e5b6 | 1379 | vrf_id_to_name(oi->interface->vrf_id), |
d47b448d DS |
1380 | oi->interface->name, &oi->area->area_id, |
1381 | &oh->area_id); | |
d62a17ae | 1382 | return MSG_NG; |
1383 | } | |
1384 | ||
1385 | /* Instance-ID check */ | |
1386 | if (oh->instance_id != oi->instance_id) { | |
ff99e5b6 | 1387 | zlog_warn( |
1388 | "VRF %s: I/F %s Instance-ID mismatch (my %u, rcvd %u)", | |
1389 | vrf_id_to_name(oi->interface->vrf_id), | |
1390 | oi->interface->name, oi->instance_id, oh->instance_id); | |
d62a17ae | 1391 | return MSG_NG; |
1392 | } | |
1393 | ||
1394 | /* Router-ID check */ | |
1395 | if (oh->router_id == oi->area->ospf6->router_id) { | |
d47b448d | 1396 | zlog_warn("VRF %s: I/F %s Duplicate Router-ID (%pI4)", |
ff99e5b6 | 1397 | vrf_id_to_name(oi->interface->vrf_id), |
d47b448d | 1398 | oi->interface->name, &oh->router_id); |
d62a17ae | 1399 | return MSG_NG; |
1400 | } | |
1401 | return MSG_OK; | |
abc7ef44 DO |
1402 | } |
1403 | ||
d62a17ae | 1404 | static void ospf6_lsupdate_recv(struct in6_addr *src, struct in6_addr *dst, |
1405 | struct ospf6_interface *oi, | |
1406 | struct ospf6_header *oh) | |
718e3744 | 1407 | { |
d62a17ae | 1408 | struct ospf6_neighbor *on; |
1409 | struct ospf6_lsupdate *lsupdate; | |
1410 | char *p; | |
1411 | ||
1412 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
1413 | if (on == NULL) { | |
f44d0f5e | 1414 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 1415 | zlog_debug("Neighbor not found, ignore"); |
1416 | return; | |
1417 | } | |
1418 | ||
1419 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE | |
1420 | && on->state != OSPF6_NEIGHBOR_LOADING | |
1421 | && on->state != OSPF6_NEIGHBOR_FULL) { | |
f44d0f5e | 1422 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 1423 | zlog_debug("Neighbor state less than Exchange, ignore"); |
1424 | return; | |
1425 | } | |
1426 | ||
1427 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
1428 | + sizeof(struct ospf6_header)); | |
718e3744 | 1429 | |
43855e3d CS |
1430 | oi->ls_upd_in++; |
1431 | ||
d62a17ae | 1432 | /* Process LSAs */ |
1433 | for (p = (char *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); | |
1434 | p < OSPF6_MESSAGE_END(oh) | |
1435 | && p + OSPF6_LSA_SIZE(p) <= OSPF6_MESSAGE_END(oh); | |
1436 | p += OSPF6_LSA_SIZE(p)) { | |
1437 | ospf6_receive_lsa(on, (struct ospf6_lsa_header *)p); | |
1438 | } | |
1439 | ||
1440 | assert(p == OSPF6_MESSAGE_END(oh)); | |
508e53e2 | 1441 | } |
1442 | ||
d62a17ae | 1443 | static void ospf6_lsack_recv(struct in6_addr *src, struct in6_addr *dst, |
1444 | struct ospf6_interface *oi, | |
1445 | struct ospf6_header *oh) | |
508e53e2 | 1446 | { |
d62a17ae | 1447 | struct ospf6_neighbor *on; |
1448 | char *p; | |
1449 | struct ospf6_lsa *his, *mine; | |
1450 | struct ospf6_lsdb *lsdb = NULL; | |
1451 | ||
1452 | assert(oh->type == OSPF6_MESSAGE_TYPE_LSACK); | |
1453 | ||
1454 | on = ospf6_neighbor_lookup(oh->router_id, oi); | |
1455 | if (on == NULL) { | |
f44d0f5e | 1456 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 1457 | zlog_debug("Neighbor not found, ignore"); |
1458 | return; | |
1459 | } | |
1460 | ||
1461 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE | |
1462 | && on->state != OSPF6_NEIGHBOR_LOADING | |
1463 | && on->state != OSPF6_NEIGHBOR_FULL) { | |
f44d0f5e | 1464 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) |
d62a17ae | 1465 | zlog_debug("Neighbor state less than Exchange, ignore"); |
1466 | return; | |
1467 | } | |
1468 | ||
43855e3d CS |
1469 | oi->ls_ack_in++; |
1470 | ||
d62a17ae | 1471 | for (p = (char *)((caddr_t)oh + sizeof(struct ospf6_header)); |
1472 | p + sizeof(struct ospf6_lsa_header) <= OSPF6_MESSAGE_END(oh); | |
1473 | p += sizeof(struct ospf6_lsa_header)) { | |
1474 | his = ospf6_lsa_create_headeronly((struct ospf6_lsa_header *)p); | |
1475 | ||
1476 | switch (OSPF6_LSA_SCOPE(his->header->type)) { | |
1477 | case OSPF6_SCOPE_LINKLOCAL: | |
1478 | lsdb = on->ospf6_if->lsdb; | |
1479 | break; | |
1480 | case OSPF6_SCOPE_AREA: | |
1481 | lsdb = on->ospf6_if->area->lsdb; | |
1482 | break; | |
1483 | case OSPF6_SCOPE_AS: | |
1484 | lsdb = on->ospf6_if->area->ospf6->lsdb; | |
1485 | break; | |
1486 | case OSPF6_SCOPE_RESERVED: | |
1487 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1488 | zlog_debug("Ignoring LSA of reserved scope"); | |
1489 | ospf6_lsa_delete(his); | |
1490 | continue; | |
1491 | break; | |
1492 | } | |
1493 | ||
1494 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1495 | zlog_debug("%s acknowledged by %s", his->name, | |
1496 | on->name); | |
1497 | ||
1498 | /* Find database copy */ | |
1499 | mine = ospf6_lsdb_lookup(his->header->type, his->header->id, | |
1500 | his->header->adv_router, lsdb); | |
1501 | if (mine == NULL) { | |
1502 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1503 | zlog_debug("No database copy"); | |
1504 | ospf6_lsa_delete(his); | |
1505 | continue; | |
1506 | } | |
1507 | ||
1508 | /* Check if the LSA is on his retrans-list */ | |
1509 | mine = ospf6_lsdb_lookup(his->header->type, his->header->id, | |
1510 | his->header->adv_router, | |
1511 | on->retrans_list); | |
1512 | if (mine == NULL) { | |
1513 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1514 | zlog_debug("Not on %s's retrans-list", | |
1515 | on->name); | |
1516 | ospf6_lsa_delete(his); | |
1517 | continue; | |
1518 | } | |
1519 | ||
1520 | if (ospf6_lsa_compare(his, mine) != 0) { | |
1521 | /* Log this questionable acknowledgement, | |
1522 | and examine the next one. */ | |
1523 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1524 | zlog_debug("Questionable acknowledgement"); | |
1525 | ospf6_lsa_delete(his); | |
1526 | continue; | |
1527 | } | |
1528 | ||
1529 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) | |
1530 | zlog_debug( | |
1531 | "Acknowledged, remove from %s's retrans-list", | |
1532 | on->name); | |
1533 | ||
1534 | ospf6_decrement_retrans_count(mine); | |
1535 | if (OSPF6_LSA_IS_MAXAGE(mine)) | |
1536 | ospf6_maxage_remove(on->ospf6_if->area->ospf6); | |
1537 | ospf6_lsdb_remove(mine, on->retrans_list); | |
1538 | ospf6_lsa_delete(his); | |
1539 | } | |
1540 | ||
1541 | assert(p == OSPF6_MESSAGE_END(oh)); | |
508e53e2 | 1542 | } |
1543 | ||
d7c0a89a QY |
1544 | static uint8_t *recvbuf = NULL; |
1545 | static uint8_t *sendbuf = NULL; | |
6ac29a51 | 1546 | static unsigned int iobuflen = 0; |
3b4cd3a9 | 1547 | |
d62a17ae | 1548 | int ospf6_iobuf_size(unsigned int size) |
3b4cd3a9 | 1549 | { |
d7c0a89a | 1550 | uint8_t *recvnew, *sendnew; |
d62a17ae | 1551 | |
1552 | if (size <= iobuflen) | |
1553 | return iobuflen; | |
1554 | ||
1555 | recvnew = XMALLOC(MTYPE_OSPF6_MESSAGE, size); | |
1556 | sendnew = XMALLOC(MTYPE_OSPF6_MESSAGE, size); | |
d62a17ae | 1557 | |
0a22ddfb QY |
1558 | XFREE(MTYPE_OSPF6_MESSAGE, recvbuf); |
1559 | XFREE(MTYPE_OSPF6_MESSAGE, sendbuf); | |
d62a17ae | 1560 | recvbuf = recvnew; |
1561 | sendbuf = sendnew; | |
1562 | iobuflen = size; | |
1563 | ||
1564 | return iobuflen; | |
3b4cd3a9 | 1565 | } |
508e53e2 | 1566 | |
d62a17ae | 1567 | void ospf6_message_terminate(void) |
ae2254aa | 1568 | { |
e1b36e13 QY |
1569 | XFREE(MTYPE_OSPF6_MESSAGE, recvbuf); |
1570 | XFREE(MTYPE_OSPF6_MESSAGE, sendbuf); | |
d62a17ae | 1571 | |
1572 | iobuflen = 0; | |
ae2254aa TG |
1573 | } |
1574 | ||
d62a17ae | 1575 | int ospf6_receive(struct thread *thread) |
508e53e2 | 1576 | { |
d62a17ae | 1577 | int sockfd; |
1578 | unsigned int len; | |
d62a17ae | 1579 | struct in6_addr src, dst; |
1580 | ifindex_t ifindex; | |
1581 | struct iovec iovector[2]; | |
1582 | struct ospf6_interface *oi; | |
1583 | struct ospf6_header *oh; | |
7df1f362 | 1584 | struct ospf6 *ospf6; |
d62a17ae | 1585 | |
1586 | /* add next read thread */ | |
7df1f362 | 1587 | ospf6 = THREAD_ARG(thread); |
d62a17ae | 1588 | sockfd = THREAD_FD(thread); |
7df1f362 K |
1589 | |
1590 | thread_add_read(master, ospf6_receive, ospf6, ospf6->fd, | |
1591 | &ospf6->t_ospf6_receive); | |
d62a17ae | 1592 | |
1593 | /* initialize */ | |
1594 | memset(&src, 0, sizeof(src)); | |
1595 | memset(&dst, 0, sizeof(dst)); | |
1596 | ifindex = 0; | |
1597 | memset(recvbuf, 0, iobuflen); | |
1598 | iovector[0].iov_base = recvbuf; | |
1599 | iovector[0].iov_len = iobuflen; | |
1600 | iovector[1].iov_base = NULL; | |
1601 | iovector[1].iov_len = 0; | |
1602 | ||
1603 | /* receive message */ | |
7df1f362 | 1604 | len = ospf6_recvmsg(&src, &dst, &ifindex, iovector, sockfd); |
d62a17ae | 1605 | if (len > iobuflen) { |
1c50c1c0 | 1606 | flog_err(EC_LIB_DEVELOPMENT, "Excess message read"); |
d62a17ae | 1607 | return 0; |
1608 | } | |
1609 | ||
c5d28568 | 1610 | oi = ospf6_interface_lookup_by_ifindex(ifindex, ospf6->vrf_id); |
d62a17ae | 1611 | if (oi == NULL || oi->area == NULL |
1612 | || CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE)) { | |
f44d0f5e | 1613 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1614 | RECV_HDR)) | |
e4c42d65 | 1615 | zlog_debug("Message received on disabled interface"); |
d62a17ae | 1616 | return 0; |
1617 | } | |
1618 | if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE)) { | |
f44d0f5e | 1619 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, |
1620 | RECV_HDR)) | |
d62a17ae | 1621 | zlog_debug("%s: Ignore message on passive interface %s", |
1622 | __func__, oi->interface->name); | |
1623 | return 0; | |
1624 | } | |
1625 | ||
1626 | oh = (struct ospf6_header *)recvbuf; | |
1627 | if (ospf6_rxpacket_examin(oi, oh, len) != MSG_OK) | |
1628 | return 0; | |
1629 | ||
1630 | /* Being here means, that no sizing/alignment issues were detected in | |
1631 | the input packet. This renders the additional checks performed below | |
1632 | and also in the type-specific dispatching functions a dead code, | |
1633 | which can be dismissed in a cleanup-focused review round later. */ | |
1634 | ||
1635 | /* Log */ | |
f44d0f5e | 1636 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR)) { |
d62a17ae | 1637 | zlog_debug("%s received on %s", |
1638 | lookup_msg(ospf6_message_type_str, oh->type, NULL), | |
1639 | oi->interface->name); | |
5145a172 DL |
1640 | zlog_debug(" src: %pI6", &src); |
1641 | zlog_debug(" dst: %pI6", &dst); | |
d62a17ae | 1642 | |
1643 | switch (oh->type) { | |
1644 | case OSPF6_MESSAGE_TYPE_HELLO: | |
f44d0f5e | 1645 | ospf6_hello_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1646 | break; |
1647 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
f44d0f5e | 1648 | ospf6_dbdesc_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1649 | break; |
1650 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
f44d0f5e | 1651 | ospf6_lsreq_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1652 | break; |
1653 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
f44d0f5e | 1654 | ospf6_lsupdate_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1655 | break; |
1656 | case OSPF6_MESSAGE_TYPE_LSACK: | |
f44d0f5e | 1657 | ospf6_lsack_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1658 | break; |
1659 | default: | |
1660 | assert(0); | |
1661 | } | |
1662 | } | |
1663 | ||
1664 | switch (oh->type) { | |
1665 | case OSPF6_MESSAGE_TYPE_HELLO: | |
1666 | ospf6_hello_recv(&src, &dst, oi, oh); | |
1667 | break; | |
1668 | ||
1669 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
1670 | ospf6_dbdesc_recv(&src, &dst, oi, oh); | |
1671 | break; | |
1672 | ||
1673 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
1674 | ospf6_lsreq_recv(&src, &dst, oi, oh); | |
1675 | break; | |
1676 | ||
1677 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
1678 | ospf6_lsupdate_recv(&src, &dst, oi, oh); | |
1679 | break; | |
1680 | ||
1681 | case OSPF6_MESSAGE_TYPE_LSACK: | |
1682 | ospf6_lsack_recv(&src, &dst, oi, oh); | |
1683 | break; | |
1684 | ||
1685 | default: | |
1686 | assert(0); | |
1687 | } | |
1688 | ||
1689 | return 0; | |
718e3744 | 1690 | } |
1691 | ||
d62a17ae | 1692 | static void ospf6_send(struct in6_addr *src, struct in6_addr *dst, |
1693 | struct ospf6_interface *oi, struct ospf6_header *oh) | |
718e3744 | 1694 | { |
d62a17ae | 1695 | unsigned int len; |
d47b448d | 1696 | char srcname[64]; |
d62a17ae | 1697 | struct iovec iovector[2]; |
1698 | ||
1699 | /* initialize */ | |
1700 | iovector[0].iov_base = (caddr_t)oh; | |
1701 | iovector[0].iov_len = ntohs(oh->length); | |
1702 | iovector[1].iov_base = NULL; | |
1703 | iovector[1].iov_len = 0; | |
1704 | ||
1705 | /* fill OSPF header */ | |
1706 | oh->version = OSPFV3_VERSION; | |
1707 | /* message type must be set before */ | |
1708 | /* message length must be set before */ | |
1709 | oh->router_id = oi->area->ospf6->router_id; | |
1710 | oh->area_id = oi->area->area_id; | |
1711 | /* checksum is calculated by kernel */ | |
1712 | oh->instance_id = oi->instance_id; | |
1713 | oh->reserved = 0; | |
1714 | ||
1715 | /* Log */ | |
f44d0f5e | 1716 | if (IS_OSPF6_DEBUG_MESSAGE(oh->type, SEND_HDR)) { |
d62a17ae | 1717 | if (src) |
1718 | inet_ntop(AF_INET6, src, srcname, sizeof(srcname)); | |
1719 | else | |
1720 | memset(srcname, 0, sizeof(srcname)); | |
1721 | zlog_debug("%s send on %s", | |
1722 | lookup_msg(ospf6_message_type_str, oh->type, NULL), | |
1723 | oi->interface->name); | |
1724 | zlog_debug(" src: %s", srcname); | |
5145a172 | 1725 | zlog_debug(" dst: %pI6", dst); |
d62a17ae | 1726 | |
1727 | switch (oh->type) { | |
1728 | case OSPF6_MESSAGE_TYPE_HELLO: | |
f44d0f5e | 1729 | ospf6_hello_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1730 | break; |
1731 | case OSPF6_MESSAGE_TYPE_DBDESC: | |
f44d0f5e | 1732 | ospf6_dbdesc_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1733 | break; |
1734 | case OSPF6_MESSAGE_TYPE_LSREQ: | |
f44d0f5e | 1735 | ospf6_lsreq_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1736 | break; |
1737 | case OSPF6_MESSAGE_TYPE_LSUPDATE: | |
f44d0f5e | 1738 | ospf6_lsupdate_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1739 | break; |
1740 | case OSPF6_MESSAGE_TYPE_LSACK: | |
f44d0f5e | 1741 | ospf6_lsack_print(oh, OSPF6_ACTION_RECV); |
d62a17ae | 1742 | break; |
1743 | default: | |
1744 | zlog_debug("Unknown message"); | |
1745 | assert(0); | |
1746 | break; | |
1747 | } | |
1748 | } | |
1749 | ||
1750 | /* send message */ | |
7df1f362 | 1751 | if (oi->area->ospf6->fd != -1) { |
b66ec22c | 1752 | len = ospf6_sendmsg(src, dst, oi->interface->ifindex, iovector, |
7df1f362 K |
1753 | oi->area->ospf6->fd); |
1754 | if (len != ntohs(oh->length)) | |
1755 | flog_err(EC_LIB_DEVELOPMENT, | |
1756 | "Could not send entire message"); | |
1757 | } | |
718e3744 | 1758 | } |
1759 | ||
d62a17ae | 1760 | static uint32_t ospf6_packet_max(struct ospf6_interface *oi) |
681b84e8 | 1761 | { |
d62a17ae | 1762 | assert(oi->ifmtu > sizeof(struct ip6_hdr)); |
1763 | return oi->ifmtu - (sizeof(struct ip6_hdr)); | |
681b84e8 DT |
1764 | } |
1765 | ||
d62a17ae | 1766 | int ospf6_hello_send(struct thread *thread) |
718e3744 | 1767 | { |
d62a17ae | 1768 | struct ospf6_interface *oi; |
1769 | struct ospf6_header *oh; | |
1770 | struct ospf6_hello *hello; | |
d7c0a89a | 1771 | uint8_t *p; |
d62a17ae | 1772 | struct listnode *node, *nnode; |
1773 | struct ospf6_neighbor *on; | |
1774 | ||
1775 | oi = (struct ospf6_interface *)THREAD_ARG(thread); | |
1776 | oi->thread_send_hello = (struct thread *)NULL; | |
1777 | ||
1778 | if (oi->state <= OSPF6_INTERFACE_DOWN) { | |
f44d0f5e | 1779 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_HELLO, SEND_HDR)) |
d62a17ae | 1780 | zlog_debug("Unable to send Hello on down interface %s", |
1781 | oi->interface->name); | |
1782 | return 0; | |
1783 | } | |
1784 | ||
1785 | if (iobuflen == 0) { | |
1786 | zlog_debug("Unable to send Hello on interface %s iobuflen is 0", | |
1787 | oi->interface->name); | |
1788 | return 0; | |
1789 | } | |
1790 | ||
1791 | /* set next thread */ | |
1792 | thread_add_timer(master, ospf6_hello_send, oi, oi->hello_interval, | |
1793 | &oi->thread_send_hello); | |
1794 | ||
1795 | memset(sendbuf, 0, iobuflen); | |
1796 | oh = (struct ospf6_header *)sendbuf; | |
1797 | hello = (struct ospf6_hello *)((caddr_t)oh | |
1798 | + sizeof(struct ospf6_header)); | |
1799 | ||
1800 | hello->interface_id = htonl(oi->interface->ifindex); | |
1801 | hello->priority = oi->priority; | |
1802 | hello->options[0] = oi->area->options[0]; | |
1803 | hello->options[1] = oi->area->options[1]; | |
1804 | hello->options[2] = oi->area->options[2]; | |
1805 | hello->hello_interval = htons(oi->hello_interval); | |
1806 | hello->dead_interval = htons(oi->dead_interval); | |
1807 | hello->drouter = oi->drouter; | |
1808 | hello->bdrouter = oi->bdrouter; | |
1809 | ||
d7c0a89a | 1810 | p = (uint8_t *)((caddr_t)hello + sizeof(struct ospf6_hello)); |
d62a17ae | 1811 | |
1812 | for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) { | |
1813 | if (on->state < OSPF6_NEIGHBOR_INIT) | |
1814 | continue; | |
1815 | ||
d7c0a89a | 1816 | if (p - sendbuf + sizeof(uint32_t) > ospf6_packet_max(oi)) { |
d62a17ae | 1817 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_HELLO, |
f44d0f5e | 1818 | SEND_HDR)) |
d62a17ae | 1819 | zlog_debug( |
1820 | "sending Hello message: exceeds I/F MTU"); | |
1821 | break; | |
1822 | } | |
1823 | ||
d7c0a89a QY |
1824 | memcpy(p, &on->router_id, sizeof(uint32_t)); |
1825 | p += sizeof(uint32_t); | |
d62a17ae | 1826 | } |
1827 | ||
1828 | oh->type = OSPF6_MESSAGE_TYPE_HELLO; | |
1829 | oh->length = htons(p - sendbuf); | |
1830 | ||
43855e3d CS |
1831 | oi->hello_out++; |
1832 | ||
d62a17ae | 1833 | ospf6_send(oi->linklocal_addr, &allspfrouters6, oi, oh); |
1834 | return 0; | |
718e3744 | 1835 | } |
1836 | ||
d62a17ae | 1837 | int ospf6_dbdesc_send(struct thread *thread) |
718e3744 | 1838 | { |
d62a17ae | 1839 | struct ospf6_neighbor *on; |
1840 | struct ospf6_header *oh; | |
1841 | struct ospf6_dbdesc *dbdesc; | |
d7c0a89a | 1842 | uint8_t *p; |
2e37407f | 1843 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 1844 | struct in6_addr *dst; |
1845 | ||
1846 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
1847 | on->thread_send_dbdesc = (struct thread *)NULL; | |
1848 | ||
1849 | if (on->state < OSPF6_NEIGHBOR_EXSTART) { | |
f44d0f5e | 1850 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_DBDESC, SEND_HDR)) |
d62a17ae | 1851 | zlog_debug( |
1852 | "Quit to send DbDesc to neighbor %s state %s", | |
1853 | on->name, ospf6_neighbor_state_str[on->state]); | |
1854 | return 0; | |
1855 | } | |
1856 | ||
1857 | /* set next thread if master */ | |
1858 | if (CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MSBIT)) | |
1859 | thread_add_timer(master, ospf6_dbdesc_send, on, | |
1860 | on->ospf6_if->rxmt_interval, | |
1861 | &on->thread_send_dbdesc); | |
1862 | ||
1863 | memset(sendbuf, 0, iobuflen); | |
1864 | oh = (struct ospf6_header *)sendbuf; | |
1865 | dbdesc = (struct ospf6_dbdesc *)((caddr_t)oh | |
1866 | + sizeof(struct ospf6_header)); | |
1867 | ||
1868 | /* if this is initial one, initialize sequence number for DbDesc */ | |
1869 | if (CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_IBIT) | |
1870 | && (on->dbdesc_seqnum == 0)) { | |
1871 | on->dbdesc_seqnum = monotime(NULL); | |
1872 | } | |
1873 | ||
1874 | dbdesc->options[0] = on->ospf6_if->area->options[0]; | |
1875 | dbdesc->options[1] = on->ospf6_if->area->options[1]; | |
1876 | dbdesc->options[2] = on->ospf6_if->area->options[2]; | |
1877 | dbdesc->ifmtu = htons(on->ospf6_if->ifmtu); | |
1878 | dbdesc->bits = on->dbdesc_bits; | |
1879 | dbdesc->seqnum = htonl(on->dbdesc_seqnum); | |
1880 | ||
1881 | /* if this is not initial one, set LSA headers in dbdesc */ | |
d7c0a89a | 1882 | p = (uint8_t *)((caddr_t)dbdesc + sizeof(struct ospf6_dbdesc)); |
d62a17ae | 1883 | if (!CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_IBIT)) { |
2e37407f | 1884 | for (ALL_LSDB(on->dbdesc_list, lsa, lsanext)) { |
d62a17ae | 1885 | ospf6_lsa_age_update_to_send(lsa, |
1886 | on->ospf6_if->transdelay); | |
1887 | ||
1888 | /* MTU check */ | |
1889 | if (p - sendbuf + sizeof(struct ospf6_lsa_header) | |
1890 | > ospf6_packet_max(on->ospf6_if)) { | |
ccf260c4 | 1891 | ospf6_lsa_unlock(lsa); |
1892 | if (lsanext) | |
1893 | ospf6_lsa_unlock(lsanext); | |
d62a17ae | 1894 | break; |
1895 | } | |
1896 | memcpy(p, lsa->header, sizeof(struct ospf6_lsa_header)); | |
1897 | p += sizeof(struct ospf6_lsa_header); | |
1898 | } | |
1899 | } | |
1900 | ||
1901 | oh->type = OSPF6_MESSAGE_TYPE_DBDESC; | |
1902 | oh->length = htons(p - sendbuf); | |
1903 | ||
1904 | ||
1905 | if (on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) | |
1906 | dst = &allspfrouters6; | |
1907 | else | |
1908 | dst = &on->linklocal_addr; | |
1909 | ||
43855e3d CS |
1910 | on->ospf6_if->db_desc_out++; |
1911 | ||
d62a17ae | 1912 | ospf6_send(on->ospf6_if->linklocal_addr, dst, on->ospf6_if, oh); |
1913 | ||
1914 | return 0; | |
718e3744 | 1915 | } |
1916 | ||
d62a17ae | 1917 | int ospf6_dbdesc_send_newone(struct thread *thread) |
718e3744 | 1918 | { |
d62a17ae | 1919 | struct ospf6_neighbor *on; |
2e37407f | 1920 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 1921 | unsigned int size = 0; |
1922 | ||
1923 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
1924 | ospf6_lsdb_remove_all(on->dbdesc_list); | |
1925 | ||
1926 | /* move LSAs from summary_list to dbdesc_list (within neighbor | |
1927 | structure) | |
1928 | so that ospf6_send_dbdesc () can send those LSAs */ | |
1929 | size = sizeof(struct ospf6_lsa_header) + sizeof(struct ospf6_dbdesc); | |
2e37407f | 1930 | for (ALL_LSDB(on->summary_list, lsa, lsanext)) { |
bac66c5c | 1931 | /* if stub area then don't advertise AS-External LSAs */ |
4f785c07 RZ |
1932 | if ((IS_AREA_STUB(on->ospf6_if->area) |
1933 | || IS_AREA_NSSA(on->ospf6_if->area)) | |
bac66c5c | 1934 | && ntohs(lsa->header->type) == OSPF6_LSTYPE_AS_EXTERNAL) { |
1935 | ospf6_lsdb_remove(lsa, on->summary_list); | |
1936 | continue; | |
1937 | } | |
1938 | ||
d62a17ae | 1939 | if (size + sizeof(struct ospf6_lsa_header) |
1940 | > ospf6_packet_max(on->ospf6_if)) { | |
ccf260c4 | 1941 | ospf6_lsa_unlock(lsa); |
1942 | if (lsanext) | |
1943 | ospf6_lsa_unlock(lsanext); | |
d62a17ae | 1944 | break; |
1945 | } | |
1946 | ||
1947 | ospf6_lsdb_add(ospf6_lsa_copy(lsa), on->dbdesc_list); | |
1948 | ospf6_lsdb_remove(lsa, on->summary_list); | |
1949 | size += sizeof(struct ospf6_lsa_header); | |
1950 | } | |
1951 | ||
1952 | if (on->summary_list->count == 0) | |
1953 | UNSET_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MBIT); | |
1954 | ||
1955 | /* If slave, More bit check must be done here */ | |
1956 | if (!CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MSBIT) && /* Slave */ | |
1957 | !CHECK_FLAG(on->dbdesc_last.bits, OSPF6_DBDESC_MBIT) | |
1958 | && !CHECK_FLAG(on->dbdesc_bits, OSPF6_DBDESC_MBIT)) | |
1959 | thread_add_event(master, exchange_done, on, 0, NULL); | |
1960 | ||
1961 | thread_execute(master, ospf6_dbdesc_send, on, 0); | |
1962 | return 0; | |
508e53e2 | 1963 | } |
718e3744 | 1964 | |
d62a17ae | 1965 | int ospf6_lsreq_send(struct thread *thread) |
508e53e2 | 1966 | { |
d62a17ae | 1967 | struct ospf6_neighbor *on; |
1968 | struct ospf6_header *oh; | |
1969 | struct ospf6_lsreq_entry *e; | |
d7c0a89a | 1970 | uint8_t *p; |
2e37407f | 1971 | struct ospf6_lsa *lsa, *lsanext, *last_req; |
d62a17ae | 1972 | |
1973 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
1974 | on->thread_send_lsreq = (struct thread *)NULL; | |
1975 | ||
1976 | /* LSReq will be sent only in ExStart or Loading */ | |
1977 | if (on->state != OSPF6_NEIGHBOR_EXCHANGE | |
1978 | && on->state != OSPF6_NEIGHBOR_LOADING) { | |
f44d0f5e | 1979 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSREQ, SEND_HDR)) |
d62a17ae | 1980 | zlog_debug("Quit to send LSReq to neighbor %s state %s", |
1981 | on->name, | |
1982 | ospf6_neighbor_state_str[on->state]); | |
1983 | return 0; | |
1984 | } | |
1985 | ||
1986 | /* schedule loading_done if request list is empty */ | |
1987 | if (on->request_list->count == 0) { | |
1988 | thread_add_event(master, loading_done, on, 0, NULL); | |
1989 | return 0; | |
1990 | } | |
1991 | ||
1992 | memset(sendbuf, 0, iobuflen); | |
1993 | oh = (struct ospf6_header *)sendbuf; | |
1994 | last_req = NULL; | |
1995 | ||
1996 | /* set Request entries in lsreq */ | |
d7c0a89a | 1997 | p = (uint8_t *)((caddr_t)oh + sizeof(struct ospf6_header)); |
2e37407f | 1998 | for (ALL_LSDB(on->request_list, lsa, lsanext)) { |
d62a17ae | 1999 | /* MTU check */ |
2000 | if (p - sendbuf + sizeof(struct ospf6_lsreq_entry) | |
2001 | > ospf6_packet_max(on->ospf6_if)) { | |
ccf260c4 | 2002 | ospf6_lsa_unlock(lsa); |
2003 | if (lsanext) | |
2004 | ospf6_lsa_unlock(lsanext); | |
d62a17ae | 2005 | break; |
2006 | } | |
2007 | ||
2008 | e = (struct ospf6_lsreq_entry *)p; | |
2009 | e->type = lsa->header->type; | |
2010 | e->id = lsa->header->id; | |
2011 | e->adv_router = lsa->header->adv_router; | |
2012 | p += sizeof(struct ospf6_lsreq_entry); | |
2013 | last_req = lsa; | |
2014 | } | |
2015 | ||
2016 | if (last_req != NULL) { | |
744ba569 DS |
2017 | if (on->last_ls_req != NULL) |
2018 | on->last_ls_req = ospf6_lsa_unlock(on->last_ls_req); | |
2019 | ||
d62a17ae | 2020 | ospf6_lsa_lock(last_req); |
2021 | on->last_ls_req = last_req; | |
2022 | } | |
2023 | ||
2024 | oh->type = OSPF6_MESSAGE_TYPE_LSREQ; | |
2025 | oh->length = htons(p - sendbuf); | |
2026 | ||
43855e3d CS |
2027 | on->ospf6_if->ls_req_out++; |
2028 | ||
d62a17ae | 2029 | if (on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) |
2030 | ospf6_send(on->ospf6_if->linklocal_addr, &allspfrouters6, | |
2031 | on->ospf6_if, oh); | |
2032 | else | |
2033 | ospf6_send(on->ospf6_if->linklocal_addr, &on->linklocal_addr, | |
2034 | on->ospf6_if, oh); | |
2035 | ||
2036 | /* set next thread */ | |
2037 | if (on->request_list->count != 0) { | |
2038 | on->thread_send_lsreq = NULL; | |
2039 | thread_add_timer(master, ospf6_lsreq_send, on, | |
2040 | on->ospf6_if->rxmt_interval, | |
2041 | &on->thread_send_lsreq); | |
2042 | } | |
2043 | ||
2044 | return 0; | |
718e3744 | 2045 | } |
2046 | ||
1ba43456 CS |
2047 | static void ospf6_send_lsupdate(struct ospf6_neighbor *on, |
2048 | struct ospf6_interface *oi, | |
2049 | struct ospf6_header *oh) | |
2050 | { | |
2051 | ||
2052 | if (on) { | |
43855e3d CS |
2053 | on->ospf6_if->ls_upd_out++; |
2054 | ||
996c9314 LB |
2055 | if ((on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) |
2056 | || (on->ospf6_if->state == OSPF6_INTERFACE_DR) | |
2057 | || (on->ospf6_if->state == OSPF6_INTERFACE_BDR)) { | |
1ba43456 CS |
2058 | ospf6_send(on->ospf6_if->linklocal_addr, |
2059 | &allspfrouters6, on->ospf6_if, oh); | |
2060 | } else { | |
2061 | ospf6_send(on->ospf6_if->linklocal_addr, | |
2062 | &on->linklocal_addr, on->ospf6_if, oh); | |
2063 | } | |
2064 | } else if (oi) { | |
43855e3d CS |
2065 | |
2066 | oi->ls_upd_out++; | |
2067 | ||
996c9314 LB |
2068 | if ((oi->state == OSPF6_INTERFACE_POINTTOPOINT) |
2069 | || (oi->state == OSPF6_INTERFACE_DR) | |
2070 | || (oi->state == OSPF6_INTERFACE_BDR)) { | |
1ba43456 CS |
2071 | ospf6_send(oi->linklocal_addr, &allspfrouters6, oi, oh); |
2072 | } else { | |
2073 | ospf6_send(oi->linklocal_addr, &alldrouters6, oi, oh); | |
2074 | } | |
2075 | } | |
2076 | } | |
2077 | ||
d62a17ae | 2078 | int ospf6_lsupdate_send_neighbor(struct thread *thread) |
718e3744 | 2079 | { |
d62a17ae | 2080 | struct ospf6_neighbor *on; |
2081 | struct ospf6_header *oh; | |
2082 | struct ospf6_lsupdate *lsupdate; | |
d7c0a89a | 2083 | uint8_t *p; |
d62a17ae | 2084 | int lsa_cnt; |
2e37407f | 2085 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 2086 | |
2087 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
2088 | on->thread_send_lsupdate = (struct thread *)NULL; | |
2089 | ||
f44d0f5e | 2090 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE, SEND_HDR)) |
d62a17ae | 2091 | zlog_debug("LSUpdate to neighbor %s", on->name); |
2092 | ||
2093 | if (on->state < OSPF6_NEIGHBOR_EXCHANGE) { | |
f44d0f5e | 2094 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE, |
2095 | SEND_HDR)) | |
d62a17ae | 2096 | zlog_debug("Quit to send (neighbor state %s)", |
2097 | ospf6_neighbor_state_str[on->state]); | |
2098 | return 0; | |
2099 | } | |
2100 | ||
2101 | memset(sendbuf, 0, iobuflen); | |
2102 | oh = (struct ospf6_header *)sendbuf; | |
2103 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
2104 | + sizeof(struct ospf6_header)); | |
2105 | ||
d7c0a89a | 2106 | p = (uint8_t *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); |
d62a17ae | 2107 | lsa_cnt = 0; |
2108 | ||
2109 | /* lsupdate_list lists those LSA which doesn't need to be | |
2110 | retransmitted. remove those from the list */ | |
2e37407f | 2111 | for (ALL_LSDB(on->lsupdate_list, lsa, lsanext)) { |
d62a17ae | 2112 | /* MTU check */ |
2113 | if ((p - sendbuf + (unsigned int)OSPF6_LSA_SIZE(lsa->header)) | |
2114 | > ospf6_packet_max(on->ospf6_if)) { | |
1ba43456 CS |
2115 | if (lsa_cnt) { |
2116 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2117 | oh->length = htons(p - sendbuf); | |
2118 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2119 | ||
2120 | ospf6_send_lsupdate(on, NULL, oh); | |
2121 | ||
2122 | memset(sendbuf, 0, iobuflen); | |
2123 | oh = (struct ospf6_header *)sendbuf; | |
996c9314 LB |
2124 | lsupdate = (struct ospf6_lsupdate |
2125 | *)((caddr_t)oh | |
2126 | + sizeof(struct | |
2127 | ospf6_header)); | |
1ba43456 | 2128 | |
d7c0a89a QY |
2129 | p = (uint8_t *)((caddr_t)lsupdate |
2130 | + sizeof(struct | |
2131 | ospf6_lsupdate)); | |
1ba43456 CS |
2132 | lsa_cnt = 0; |
2133 | } | |
d62a17ae | 2134 | } |
2135 | ||
2136 | ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay); | |
2137 | memcpy(p, lsa->header, OSPF6_LSA_SIZE(lsa->header)); | |
2138 | p += OSPF6_LSA_SIZE(lsa->header); | |
2139 | lsa_cnt++; | |
2140 | ||
e2e60c48 | 2141 | assert(lsa->lock == 2); |
d62a17ae | 2142 | ospf6_lsdb_remove(lsa, on->lsupdate_list); |
2143 | } | |
2144 | ||
2145 | if (lsa_cnt) { | |
2146 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2147 | oh->length = htons(p - sendbuf); | |
2148 | lsupdate->lsa_number = htonl(lsa_cnt); | |
1ba43456 | 2149 | ospf6_send_lsupdate(on, NULL, oh); |
d62a17ae | 2150 | } |
2151 | ||
2152 | /* The addresses used for retransmissions are different from those sent | |
2153 | the | |
2154 | first time and so we need to separate them here. | |
2155 | */ | |
2156 | memset(sendbuf, 0, iobuflen); | |
2157 | oh = (struct ospf6_header *)sendbuf; | |
2158 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
2159 | + sizeof(struct ospf6_header)); | |
d7c0a89a | 2160 | p = (uint8_t *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); |
d62a17ae | 2161 | lsa_cnt = 0; |
2162 | ||
2e37407f | 2163 | for (ALL_LSDB(on->retrans_list, lsa, lsanext)) { |
d62a17ae | 2164 | /* MTU check */ |
2165 | if ((p - sendbuf + (unsigned int)OSPF6_LSA_SIZE(lsa->header)) | |
2166 | > ospf6_packet_max(on->ospf6_if)) { | |
1ba43456 CS |
2167 | if (lsa_cnt) { |
2168 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2169 | oh->length = htons(p - sendbuf); | |
2170 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2171 | ||
996c9314 LB |
2172 | if (on->ospf6_if->state |
2173 | == OSPF6_INTERFACE_POINTTOPOINT) { | |
1ba43456 CS |
2174 | ospf6_send(on->ospf6_if->linklocal_addr, |
2175 | &allspfrouters6, | |
2176 | on->ospf6_if, oh); | |
2177 | } else { | |
2178 | ospf6_send(on->ospf6_if->linklocal_addr, | |
2179 | &on->linklocal_addr, | |
2180 | on->ospf6_if, oh); | |
2181 | } | |
2182 | ||
2183 | memset(sendbuf, 0, iobuflen); | |
2184 | oh = (struct ospf6_header *)sendbuf; | |
996c9314 LB |
2185 | lsupdate = (struct ospf6_lsupdate |
2186 | *)((caddr_t)oh | |
2187 | + sizeof(struct | |
2188 | ospf6_header)); | |
d7c0a89a QY |
2189 | p = (uint8_t *)((caddr_t)lsupdate |
2190 | + sizeof(struct | |
2191 | ospf6_lsupdate)); | |
1ba43456 CS |
2192 | lsa_cnt = 0; |
2193 | } | |
d62a17ae | 2194 | } |
2195 | ||
2196 | ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay); | |
2197 | memcpy(p, lsa->header, OSPF6_LSA_SIZE(lsa->header)); | |
2198 | p += OSPF6_LSA_SIZE(lsa->header); | |
2199 | lsa_cnt++; | |
2200 | } | |
2201 | ||
2202 | if (lsa_cnt) { | |
2203 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2204 | oh->length = htons(p - sendbuf); | |
2205 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2206 | ||
2207 | if (on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) | |
2208 | ospf6_send(on->ospf6_if->linklocal_addr, | |
2209 | &allspfrouters6, on->ospf6_if, oh); | |
2210 | else | |
2211 | ospf6_send(on->ospf6_if->linklocal_addr, | |
2212 | &on->linklocal_addr, on->ospf6_if, oh); | |
2213 | } | |
2214 | ||
2215 | if (on->lsupdate_list->count != 0) { | |
2216 | on->thread_send_lsupdate = NULL; | |
2217 | thread_add_event(master, ospf6_lsupdate_send_neighbor, on, 0, | |
2218 | &on->thread_send_lsupdate); | |
2219 | } else if (on->retrans_list->count != 0) { | |
2220 | on->thread_send_lsupdate = NULL; | |
2221 | thread_add_timer(master, ospf6_lsupdate_send_neighbor, on, | |
2222 | on->ospf6_if->rxmt_interval, | |
2223 | &on->thread_send_lsupdate); | |
2224 | } | |
2225 | return 0; | |
718e3744 | 2226 | } |
2227 | ||
76249532 CS |
2228 | int ospf6_lsupdate_send_neighbor_now(struct ospf6_neighbor *on, |
2229 | struct ospf6_lsa *lsa) | |
2230 | { | |
2231 | struct ospf6_header *oh; | |
2232 | struct ospf6_lsupdate *lsupdate; | |
d7c0a89a | 2233 | uint8_t *p; |
76249532 CS |
2234 | int lsa_cnt = 0; |
2235 | ||
2236 | memset(sendbuf, 0, iobuflen); | |
2237 | oh = (struct ospf6_header *)sendbuf; | |
2238 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
2239 | + sizeof(struct ospf6_header)); | |
2240 | ||
d7c0a89a | 2241 | p = (uint8_t *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); |
76249532 CS |
2242 | ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay); |
2243 | memcpy(p, lsa->header, OSPF6_LSA_SIZE(lsa->header)); | |
2244 | p += OSPF6_LSA_SIZE(lsa->header); | |
2245 | lsa_cnt++; | |
2246 | ||
2247 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2248 | oh->length = htons(p - sendbuf); | |
2249 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2250 | ||
996c9314 | 2251 | if (IS_OSPF6_DEBUG_FLOODING |
f44d0f5e | 2252 | || IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE, SEND_HDR)) |
15569c58 DA |
2253 | zlog_debug("%s: Send lsupdate with lsa %s (age %u)", __func__, |
2254 | lsa->name, ntohs(lsa->header->age)); | |
76249532 CS |
2255 | |
2256 | ospf6_send_lsupdate(on, NULL, oh); | |
2257 | ||
2258 | return 0; | |
2259 | } | |
2260 | ||
d62a17ae | 2261 | int ospf6_lsupdate_send_interface(struct thread *thread) |
718e3744 | 2262 | { |
d62a17ae | 2263 | struct ospf6_interface *oi; |
2264 | struct ospf6_header *oh; | |
2265 | struct ospf6_lsupdate *lsupdate; | |
d7c0a89a | 2266 | uint8_t *p; |
d62a17ae | 2267 | int lsa_cnt; |
2e37407f | 2268 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 2269 | |
2270 | oi = (struct ospf6_interface *)THREAD_ARG(thread); | |
2271 | oi->thread_send_lsupdate = (struct thread *)NULL; | |
2272 | ||
2273 | if (oi->state <= OSPF6_INTERFACE_WAITING) { | |
f44d0f5e | 2274 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSUPDATE, |
2275 | SEND_HDR)) | |
d62a17ae | 2276 | zlog_debug( |
2277 | "Quit to send LSUpdate to interface %s state %s", | |
2278 | oi->interface->name, | |
2279 | ospf6_interface_state_str[oi->state]); | |
2280 | return 0; | |
2281 | } | |
2282 | ||
2283 | /* if we have nothing to send, return */ | |
2284 | if (oi->lsupdate_list->count == 0) | |
2285 | return 0; | |
2286 | ||
2287 | memset(sendbuf, 0, iobuflen); | |
2288 | oh = (struct ospf6_header *)sendbuf; | |
2289 | lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh | |
2290 | + sizeof(struct ospf6_header)); | |
2291 | ||
d7c0a89a | 2292 | p = (uint8_t *)((caddr_t)lsupdate + sizeof(struct ospf6_lsupdate)); |
d62a17ae | 2293 | lsa_cnt = 0; |
2294 | ||
2e37407f | 2295 | for (ALL_LSDB(oi->lsupdate_list, lsa, lsanext)) { |
d62a17ae | 2296 | /* MTU check */ |
2297 | if ((p - sendbuf + ((unsigned int)OSPF6_LSA_SIZE(lsa->header))) | |
2298 | > ospf6_packet_max(oi)) { | |
1ba43456 CS |
2299 | if (lsa_cnt) { |
2300 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2301 | oh->length = htons(p - sendbuf); | |
2302 | lsupdate->lsa_number = htonl(lsa_cnt); | |
2303 | ||
2304 | ospf6_send_lsupdate(NULL, oi, oh); | |
43855e3d | 2305 | if (IS_OSPF6_DEBUG_MESSAGE( |
996c9314 | 2306 | OSPF6_MESSAGE_TYPE_LSUPDATE, SEND)) |
43855e3d | 2307 | zlog_debug("%s: LSUpdate length %d", |
15569c58 | 2308 | __func__, ntohs(oh->length)); |
1ba43456 CS |
2309 | |
2310 | memset(sendbuf, 0, iobuflen); | |
2311 | oh = (struct ospf6_header *)sendbuf; | |
996c9314 LB |
2312 | lsupdate = (struct ospf6_lsupdate |
2313 | *)((caddr_t)oh | |
2314 | + sizeof(struct | |
2315 | ospf6_header)); | |
1ba43456 | 2316 | |
d7c0a89a QY |
2317 | p = (uint8_t *)((caddr_t)lsupdate |
2318 | + sizeof(struct | |
2319 | ospf6_lsupdate)); | |
1ba43456 CS |
2320 | lsa_cnt = 0; |
2321 | } | |
d62a17ae | 2322 | } |
2323 | ||
2324 | ospf6_lsa_age_update_to_send(lsa, oi->transdelay); | |
2325 | memcpy(p, lsa->header, OSPF6_LSA_SIZE(lsa->header)); | |
2326 | p += OSPF6_LSA_SIZE(lsa->header); | |
2327 | lsa_cnt++; | |
2328 | ||
e2e60c48 | 2329 | assert(lsa->lock == 2); |
d62a17ae | 2330 | ospf6_lsdb_remove(lsa, oi->lsupdate_list); |
2331 | } | |
2332 | ||
2333 | if (lsa_cnt) { | |
d62a17ae | 2334 | oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE; |
2335 | oh->length = htons(p - sendbuf); | |
1ba43456 | 2336 | lsupdate->lsa_number = htonl(lsa_cnt); |
d62a17ae | 2337 | |
1ba43456 | 2338 | ospf6_send_lsupdate(NULL, oi, oh); |
d62a17ae | 2339 | } |
2340 | ||
2341 | if (oi->lsupdate_list->count > 0) { | |
2342 | oi->thread_send_lsupdate = NULL; | |
2343 | thread_add_event(master, ospf6_lsupdate_send_interface, oi, 0, | |
2344 | &oi->thread_send_lsupdate); | |
2345 | } | |
2346 | ||
2347 | return 0; | |
718e3744 | 2348 | } |
2349 | ||
d62a17ae | 2350 | int ospf6_lsack_send_neighbor(struct thread *thread) |
718e3744 | 2351 | { |
d62a17ae | 2352 | struct ospf6_neighbor *on; |
2353 | struct ospf6_header *oh; | |
d7c0a89a | 2354 | uint8_t *p; |
2e37407f | 2355 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 2356 | int lsa_cnt = 0; |
2357 | ||
2358 | on = (struct ospf6_neighbor *)THREAD_ARG(thread); | |
2359 | on->thread_send_lsack = (struct thread *)NULL; | |
2360 | ||
2361 | if (on->state < OSPF6_NEIGHBOR_EXCHANGE) { | |
f44d0f5e | 2362 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSACK, SEND_HDR)) |
d62a17ae | 2363 | zlog_debug("Quit to send LSAck to neighbor %s state %s", |
2364 | on->name, | |
2365 | ospf6_neighbor_state_str[on->state]); | |
2366 | return 0; | |
2367 | } | |
2368 | ||
2369 | /* if we have nothing to send, return */ | |
2370 | if (on->lsack_list->count == 0) | |
2371 | return 0; | |
2372 | ||
2373 | memset(sendbuf, 0, iobuflen); | |
2374 | oh = (struct ospf6_header *)sendbuf; | |
2375 | ||
d7c0a89a | 2376 | p = (uint8_t *)((caddr_t)oh + sizeof(struct ospf6_header)); |
d62a17ae | 2377 | |
2e37407f | 2378 | for (ALL_LSDB(on->lsack_list, lsa, lsanext)) { |
d62a17ae | 2379 | /* MTU check */ |
2380 | if (p - sendbuf + sizeof(struct ospf6_lsa_header) | |
2381 | > ospf6_packet_max(on->ospf6_if)) { | |
2382 | /* if we run out of packet size/space here, | |
2383 | better to try again soon. */ | |
1ba43456 CS |
2384 | if (lsa_cnt) { |
2385 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; | |
2386 | oh->length = htons(p - sendbuf); | |
2387 | ||
43855e3d CS |
2388 | on->ospf6_if->ls_ack_out++; |
2389 | ||
1ba43456 | 2390 | ospf6_send(on->ospf6_if->linklocal_addr, |
996c9314 LB |
2391 | &on->linklocal_addr, on->ospf6_if, |
2392 | oh); | |
1ba43456 CS |
2393 | |
2394 | memset(sendbuf, 0, iobuflen); | |
2395 | oh = (struct ospf6_header *)sendbuf; | |
d7c0a89a QY |
2396 | p = (uint8_t *)((caddr_t)oh |
2397 | + sizeof(struct ospf6_header)); | |
1ba43456 CS |
2398 | lsa_cnt = 0; |
2399 | } | |
d62a17ae | 2400 | } |
2401 | ||
2402 | ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay); | |
2403 | memcpy(p, lsa->header, sizeof(struct ospf6_lsa_header)); | |
2404 | p += sizeof(struct ospf6_lsa_header); | |
2405 | ||
e2e60c48 | 2406 | assert(lsa->lock == 2); |
d62a17ae | 2407 | ospf6_lsdb_remove(lsa, on->lsack_list); |
2408 | lsa_cnt++; | |
2409 | } | |
2410 | ||
2411 | if (lsa_cnt) { | |
2412 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; | |
2413 | oh->length = htons(p - sendbuf); | |
2414 | ||
43855e3d CS |
2415 | on->ospf6_if->ls_ack_out++; |
2416 | ||
d62a17ae | 2417 | ospf6_send(on->ospf6_if->linklocal_addr, &on->linklocal_addr, |
2418 | on->ospf6_if, oh); | |
2419 | } | |
2420 | ||
2421 | if (on->lsack_list->count > 0) | |
2422 | thread_add_event(master, ospf6_lsack_send_neighbor, on, 0, | |
2423 | &on->thread_send_lsack); | |
2424 | ||
2425 | return 0; | |
718e3744 | 2426 | } |
2427 | ||
d62a17ae | 2428 | int ospf6_lsack_send_interface(struct thread *thread) |
718e3744 | 2429 | { |
d62a17ae | 2430 | struct ospf6_interface *oi; |
2431 | struct ospf6_header *oh; | |
d7c0a89a | 2432 | uint8_t *p; |
2e37407f | 2433 | struct ospf6_lsa *lsa, *lsanext; |
d62a17ae | 2434 | int lsa_cnt = 0; |
2435 | ||
2436 | oi = (struct ospf6_interface *)THREAD_ARG(thread); | |
2437 | oi->thread_send_lsack = (struct thread *)NULL; | |
2438 | ||
2439 | if (oi->state <= OSPF6_INTERFACE_WAITING) { | |
f44d0f5e | 2440 | if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_LSACK, SEND_HDR)) |
d62a17ae | 2441 | zlog_debug( |
2442 | "Quit to send LSAck to interface %s state %s", | |
2443 | oi->interface->name, | |
2444 | ospf6_interface_state_str[oi->state]); | |
2445 | return 0; | |
2446 | } | |
2447 | ||
2448 | /* if we have nothing to send, return */ | |
2449 | if (oi->lsack_list->count == 0) | |
2450 | return 0; | |
2451 | ||
2452 | memset(sendbuf, 0, iobuflen); | |
2453 | oh = (struct ospf6_header *)sendbuf; | |
2454 | ||
d7c0a89a | 2455 | p = (uint8_t *)((caddr_t)oh + sizeof(struct ospf6_header)); |
d62a17ae | 2456 | |
2e37407f | 2457 | for (ALL_LSDB(oi->lsack_list, lsa, lsanext)) { |
d62a17ae | 2458 | /* MTU check */ |
2459 | if (p - sendbuf + sizeof(struct ospf6_lsa_header) | |
2460 | > ospf6_packet_max(oi)) { | |
2461 | /* if we run out of packet size/space here, | |
2462 | better to try again soon. */ | |
2463 | THREAD_OFF(oi->thread_send_lsack); | |
2464 | thread_add_event(master, ospf6_lsack_send_interface, oi, | |
2465 | 0, &oi->thread_send_lsack); | |
2466 | ||
ccf260c4 | 2467 | ospf6_lsa_unlock(lsa); |
2468 | if (lsanext) | |
2469 | ospf6_lsa_unlock(lsanext); | |
d62a17ae | 2470 | break; |
2471 | } | |
2472 | ||
2473 | ospf6_lsa_age_update_to_send(lsa, oi->transdelay); | |
2474 | memcpy(p, lsa->header, sizeof(struct ospf6_lsa_header)); | |
2475 | p += sizeof(struct ospf6_lsa_header); | |
2476 | ||
e2e60c48 | 2477 | assert(lsa->lock == 2); |
d62a17ae | 2478 | ospf6_lsdb_remove(lsa, oi->lsack_list); |
2479 | lsa_cnt++; | |
2480 | } | |
2481 | ||
2482 | if (lsa_cnt) { | |
2483 | oh->type = OSPF6_MESSAGE_TYPE_LSACK; | |
2484 | oh->length = htons(p - sendbuf); | |
2485 | ||
2486 | if ((oi->state == OSPF6_INTERFACE_POINTTOPOINT) | |
2487 | || (oi->state == OSPF6_INTERFACE_DR) | |
2488 | || (oi->state == OSPF6_INTERFACE_BDR)) | |
2489 | ospf6_send(oi->linklocal_addr, &allspfrouters6, oi, oh); | |
2490 | else | |
2491 | ospf6_send(oi->linklocal_addr, &alldrouters6, oi, oh); | |
2492 | } | |
2493 | ||
2494 | if (oi->lsack_list->count > 0) | |
2495 | thread_add_event(master, ospf6_lsack_send_interface, oi, 0, | |
2496 | &oi->thread_send_lsack); | |
2497 | ||
2498 | return 0; | |
718e3744 | 2499 | } |
2500 | ||
6b0655a2 | 2501 | |
508e53e2 | 2502 | /* Commands */ |
f44d0f5e | 2503 | DEFUN(debug_ospf6_message, debug_ospf6_message_cmd, |
2504 | "debug ospf6 message <unknown|hello|dbdesc|lsreq|lsupdate|lsack|all> [<send|recv|send-hdr|recv-hdr>]", | |
2505 | DEBUG_STR OSPF6_STR | |
2506 | "Debug OSPFv3 message\n" | |
2507 | "Debug Unknown message\n" | |
2508 | "Debug Hello message\n" | |
2509 | "Debug Database Description message\n" | |
2510 | "Debug Link State Request message\n" | |
2511 | "Debug Link State Update message\n" | |
2512 | "Debug Link State Acknowledgement message\n" | |
2513 | "Debug All message\n" | |
2514 | "Debug only sending message, entire packet\n" | |
2515 | "Debug only receiving message, entire packet\n" | |
2516 | "Debug only sending message, header only\n" | |
2517 | "Debug only receiving message, header only\n") | |
718e3744 | 2518 | { |
d62a17ae | 2519 | int idx_packet = 3; |
2520 | int idx_send_recv = 4; | |
2521 | unsigned char level = 0; | |
2522 | int type = 0; | |
2523 | int i; | |
2524 | ||
2525 | /* check type */ | |
2526 | if (!strncmp(argv[idx_packet]->arg, "u", 1)) | |
2527 | type = OSPF6_MESSAGE_TYPE_UNKNOWN; | |
2528 | else if (!strncmp(argv[idx_packet]->arg, "h", 1)) | |
2529 | type = OSPF6_MESSAGE_TYPE_HELLO; | |
2530 | else if (!strncmp(argv[idx_packet]->arg, "d", 1)) | |
2531 | type = OSPF6_MESSAGE_TYPE_DBDESC; | |
2532 | else if (!strncmp(argv[idx_packet]->arg, "lsr", 3)) | |
2533 | type = OSPF6_MESSAGE_TYPE_LSREQ; | |
2534 | else if (!strncmp(argv[idx_packet]->arg, "lsu", 3)) | |
2535 | type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2536 | else if (!strncmp(argv[idx_packet]->arg, "lsa", 3)) | |
2537 | type = OSPF6_MESSAGE_TYPE_LSACK; | |
2538 | else if (!strncmp(argv[idx_packet]->arg, "a", 1)) | |
2539 | type = OSPF6_MESSAGE_TYPE_ALL; | |
2540 | ||
2541 | if (argc == 4) | |
2542 | level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV; | |
f44d0f5e | 2543 | else if (!strncmp(argv[idx_send_recv]->arg, "send-h", 6)) |
2544 | level = OSPF6_DEBUG_MESSAGE_SEND_HDR; | |
d62a17ae | 2545 | else if (!strncmp(argv[idx_send_recv]->arg, "s", 1)) |
2546 | level = OSPF6_DEBUG_MESSAGE_SEND; | |
f44d0f5e | 2547 | else if (!strncmp(argv[idx_send_recv]->arg, "recv-h", 6)) |
2548 | level = OSPF6_DEBUG_MESSAGE_RECV_HDR; | |
d62a17ae | 2549 | else if (!strncmp(argv[idx_send_recv]->arg, "r", 1)) |
2550 | level = OSPF6_DEBUG_MESSAGE_RECV; | |
2551 | ||
2552 | if (type == OSPF6_MESSAGE_TYPE_ALL) { | |
2553 | for (i = 0; i < 6; i++) | |
2554 | OSPF6_DEBUG_MESSAGE_ON(i, level); | |
2555 | } else | |
2556 | OSPF6_DEBUG_MESSAGE_ON(type, level); | |
2557 | ||
2558 | return CMD_SUCCESS; | |
718e3744 | 2559 | } |
2560 | ||
f44d0f5e | 2561 | DEFUN(no_debug_ospf6_message, no_debug_ospf6_message_cmd, |
2562 | "no debug ospf6 message <unknown|hello|dbdesc|lsreq|lsupdate|lsack|all> [<send|recv|send-hdr|recv-hdr>]", | |
2563 | NO_STR DEBUG_STR OSPF6_STR | |
2564 | "Debug OSPFv3 message\n" | |
2565 | "Debug Unknown message\n" | |
2566 | "Debug Hello message\n" | |
2567 | "Debug Database Description message\n" | |
2568 | "Debug Link State Request message\n" | |
2569 | "Debug Link State Update message\n" | |
2570 | "Debug Link State Acknowledgement message\n" | |
2571 | "Debug All message\n" | |
2572 | "Debug only sending message, entire pkt\n" | |
2573 | "Debug only receiving message, entire pkt\n" | |
2574 | "Debug only sending message, header only\n" | |
2575 | "Debug only receiving message, header only\n") | |
508e53e2 | 2576 | { |
d62a17ae | 2577 | int idx_packet = 4; |
2578 | int idx_send_recv = 5; | |
2579 | unsigned char level = 0; | |
2580 | int type = 0; | |
2581 | int i; | |
2582 | ||
2583 | /* check type */ | |
2584 | if (!strncmp(argv[idx_packet]->arg, "u", 1)) | |
2585 | type = OSPF6_MESSAGE_TYPE_UNKNOWN; | |
2586 | else if (!strncmp(argv[idx_packet]->arg, "h", 1)) | |
2587 | type = OSPF6_MESSAGE_TYPE_HELLO; | |
2588 | else if (!strncmp(argv[idx_packet]->arg, "d", 1)) | |
2589 | type = OSPF6_MESSAGE_TYPE_DBDESC; | |
2590 | else if (!strncmp(argv[idx_packet]->arg, "lsr", 3)) | |
2591 | type = OSPF6_MESSAGE_TYPE_LSREQ; | |
2592 | else if (!strncmp(argv[idx_packet]->arg, "lsu", 3)) | |
2593 | type = OSPF6_MESSAGE_TYPE_LSUPDATE; | |
2594 | else if (!strncmp(argv[idx_packet]->arg, "lsa", 3)) | |
2595 | type = OSPF6_MESSAGE_TYPE_LSACK; | |
2596 | else if (!strncmp(argv[idx_packet]->arg, "a", 1)) | |
2597 | type = OSPF6_MESSAGE_TYPE_ALL; | |
2598 | ||
2599 | if (argc == 5) | |
f44d0f5e | 2600 | level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV |
2601 | | OSPF6_DEBUG_MESSAGE_SEND_HDR | |
2602 | | OSPF6_DEBUG_MESSAGE_RECV_HDR; | |
2603 | else if (!strncmp(argv[idx_send_recv]->arg, "send-h", 6)) | |
2604 | level = OSPF6_DEBUG_MESSAGE_SEND_HDR; | |
d62a17ae | 2605 | else if (!strncmp(argv[idx_send_recv]->arg, "s", 1)) |
2606 | level = OSPF6_DEBUG_MESSAGE_SEND; | |
f44d0f5e | 2607 | else if (!strncmp(argv[idx_send_recv]->arg, "recv-h", 6)) |
2608 | level = OSPF6_DEBUG_MESSAGE_RECV_HDR; | |
d62a17ae | 2609 | else if (!strncmp(argv[idx_send_recv]->arg, "r", 1)) |
2610 | level = OSPF6_DEBUG_MESSAGE_RECV; | |
2611 | ||
2612 | if (type == OSPF6_MESSAGE_TYPE_ALL) { | |
2613 | for (i = 0; i < 6; i++) | |
2614 | OSPF6_DEBUG_MESSAGE_OFF(i, level); | |
2615 | } else | |
2616 | OSPF6_DEBUG_MESSAGE_OFF(type, level); | |
2617 | ||
2618 | return CMD_SUCCESS; | |
718e3744 | 2619 | } |
2620 | ||
508e53e2 | 2621 | |
d62a17ae | 2622 | int config_write_ospf6_debug_message(struct vty *vty) |
718e3744 | 2623 | { |
d62a17ae | 2624 | const char *type_str[] = {"unknown", "hello", "dbdesc", |
2625 | "lsreq", "lsupdate", "lsack"}; | |
f44d0f5e | 2626 | unsigned char s = 0, r = 0, sh = 0, rh = 0; |
d62a17ae | 2627 | int i; |
2628 | ||
2629 | for (i = 0; i < 6; i++) { | |
f44d0f5e | 2630 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND)) |
d62a17ae | 2631 | s |= 1 << i; |
f44d0f5e | 2632 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV)) |
d62a17ae | 2633 | r |= 1 << i; |
2634 | } | |
2635 | ||
f44d0f5e | 2636 | for (i = 0; i < 6; i++) { |
2637 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND_HDR)) | |
2638 | sh |= 1 << i; | |
2639 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV_HDR)) | |
2640 | rh |= 1 << i; | |
2641 | } | |
2642 | ||
d62a17ae | 2643 | if (s == 0x3f && r == 0x3f) { |
2644 | vty_out(vty, "debug ospf6 message all\n"); | |
2645 | return 0; | |
2646 | } | |
2647 | ||
2648 | if (s == 0x3f && r == 0) { | |
2649 | vty_out(vty, "debug ospf6 message all send\n"); | |
2650 | return 0; | |
2651 | } else if (s == 0 && r == 0x3f) { | |
2652 | vty_out(vty, "debug ospf6 message all recv\n"); | |
2653 | return 0; | |
2654 | } | |
2655 | ||
f44d0f5e | 2656 | if (sh == 0x3f && rh == 0) { |
2657 | vty_out(vty, "debug ospf6 message all send-hdr\n"); | |
2658 | return 0; | |
2659 | } else if (sh == 0 && rh == 0x3f) { | |
2660 | vty_out(vty, "debug ospf6 message all recv-hdr\n"); | |
2661 | return 0; | |
2662 | } | |
2663 | ||
d62a17ae | 2664 | /* Unknown message is logged by default */ |
2665 | if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, SEND) | |
2666 | && !IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) | |
2667 | vty_out(vty, "no debug ospf6 message unknown\n"); | |
2668 | else if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, SEND)) | |
2669 | vty_out(vty, "no debug ospf6 message unknown send\n"); | |
2670 | else if (!IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, RECV)) | |
2671 | vty_out(vty, "no debug ospf6 message unknown recv\n"); | |
2672 | ||
2673 | for (i = 1; i < 6; i++) { | |
f44d0f5e | 2674 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND) |
c9ac777a | 2675 | && IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV)) { |
d62a17ae | 2676 | vty_out(vty, "debug ospf6 message %s\n", type_str[i]); |
c9ac777a IR |
2677 | continue; |
2678 | } | |
2679 | ||
2680 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND)) | |
d62a17ae | 2681 | vty_out(vty, "debug ospf6 message %s send\n", |
2682 | type_str[i]); | |
c9ac777a IR |
2683 | else if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, SEND_HDR)) |
2684 | vty_out(vty, "debug ospf6 message %s send-hdr\n", | |
d62a17ae | 2685 | type_str[i]); |
c9ac777a IR |
2686 | |
2687 | if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV)) | |
2688 | vty_out(vty, "debug ospf6 message %s recv\n", | |
f44d0f5e | 2689 | type_str[i]); |
2690 | else if (IS_OSPF6_DEBUG_MESSAGE_ENABLED(i, RECV_HDR)) | |
2691 | vty_out(vty, "debug ospf6 message %s recv-hdr\n", | |
2692 | type_str[i]); | |
d62a17ae | 2693 | } |
2694 | ||
2695 | return 0; | |
718e3744 | 2696 | } |
2697 | ||
d62a17ae | 2698 | void install_element_ospf6_debug_message(void) |
508e53e2 | 2699 | { |
d62a17ae | 2700 | install_element(ENABLE_NODE, &debug_ospf6_message_cmd); |
2701 | install_element(ENABLE_NODE, &no_debug_ospf6_message_cmd); | |
2702 | install_element(CONFIG_NODE, &debug_ospf6_message_cmd); | |
2703 | install_element(CONFIG_NODE, &no_debug_ospf6_message_cmd); | |
508e53e2 | 2704 | } |