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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 | ||
21 | #include <zebra.h> | |
22 | ||
23 | /* Include other stuffs */ | |
718e3744 | 24 | #include "log.h" |
718e3744 | 25 | #include "linklist.h" |
1e05838a | 26 | #include "vector.h" |
27 | #include "vty.h" | |
718e3744 | 28 | #include "command.h" |
29 | #include "memory.h" | |
718e3744 | 30 | #include "thread.h" |
d8a4e42b | 31 | #include "checksum.h" |
718e3744 | 32 | |
33 | #include "ospf6_proto.h" | |
718e3744 | 34 | #include "ospf6_lsa.h" |
35 | #include "ospf6_lsdb.h" | |
36 | #include "ospf6_message.h" | |
c4122b55 YR |
37 | #include "ospf6_asbr.h" |
38 | #include "ospf6_zebra.h" | |
718e3744 | 39 | |
40 | #include "ospf6_top.h" | |
41 | #include "ospf6_area.h" | |
42 | #include "ospf6_interface.h" | |
43 | #include "ospf6_neighbor.h" | |
718e3744 | 44 | |
508e53e2 | 45 | #include "ospf6_flood.h" |
049207c3 | 46 | #include "ospf6d.h" |
718e3744 | 47 | |
4dc43886 MR |
48 | #ifndef VTYSH_EXTRACT_PL |
49 | #include "ospf6d/ospf6_lsa_clippy.c" | |
50 | #endif | |
51 | ||
30043e4c DL |
52 | DEFINE_MTYPE_STATIC(OSPF6D, OSPF6_LSA, "OSPF6 LSA"); |
53 | DEFINE_MTYPE_STATIC(OSPF6D, OSPF6_LSA_HEADER, "OSPF6 LSA header"); | |
54 | DEFINE_MTYPE_STATIC(OSPF6D, OSPF6_LSA_SUMMARY, "OSPF6 LSA summary"); | |
55 | ||
1e05838a | 56 | vector ospf6_lsa_handler_vector; |
718e3744 | 57 | |
beadc736 | 58 | struct ospf6 *ospf6_get_by_lsdb(struct ospf6_lsa *lsa) |
59 | { | |
60 | struct ospf6 *ospf6 = NULL; | |
61 | ||
62 | switch (OSPF6_LSA_SCOPE(lsa->header->type)) { | |
63 | case OSPF6_SCOPE_LINKLOCAL: | |
64 | ospf6 = OSPF6_INTERFACE(lsa->lsdb->data)->area->ospf6; | |
65 | break; | |
66 | case OSPF6_SCOPE_AREA: | |
67 | ospf6 = OSPF6_AREA(lsa->lsdb->data)->ospf6; | |
68 | break; | |
69 | case OSPF6_SCOPE_AS: | |
70 | ospf6 = OSPF6_PROCESS(lsa->lsdb->data); | |
71 | break; | |
72 | default: | |
73 | assert(0); | |
74 | break; | |
75 | } | |
76 | return ospf6; | |
77 | } | |
78 | ||
e4bacbaa YR |
79 | static int ospf6_unknown_lsa_show(struct vty *vty, struct ospf6_lsa *lsa, |
80 | json_object *json_obj, bool use_json) | |
1e05838a | 81 | { |
d7c0a89a | 82 | uint8_t *start, *end, *current; |
d62a17ae | 83 | char byte[4]; |
1e05838a | 84 | |
d7c0a89a QY |
85 | start = (uint8_t *)lsa->header + sizeof(struct ospf6_lsa_header); |
86 | end = (uint8_t *)lsa->header + ntohs(lsa->header->length); | |
1e05838a | 87 | |
e4bacbaa YR |
88 | if (use_json) |
89 | json_object_string_add(json_obj, "LsaType", "unknown"); | |
90 | else { | |
91 | vty_out(vty, " Unknown contents:\n"); | |
92 | for (current = start; current < end; current++) { | |
93 | if ((current - start) % 16 == 0) | |
94 | vty_out(vty, "\n "); | |
95 | else if ((current - start) % 4 == 0) | |
96 | vty_out(vty, " "); | |
97 | ||
98 | snprintf(byte, sizeof(byte), "%02x", *current); | |
99 | vty_out(vty, "%s", byte); | |
100 | } | |
718e3744 | 101 | |
e4bacbaa | 102 | vty_out(vty, "\n\n"); |
d62a17ae | 103 | } |
d62a17ae | 104 | return 0; |
1e05838a | 105 | } |
106 | ||
3981b5c7 VJ |
107 | static struct ospf6_lsa_handler unknown_handler = { |
108 | .lh_type = OSPF6_LSTYPE_UNKNOWN, | |
109 | .lh_name = "Unknown", | |
110 | .lh_short_name = "Unk", | |
111 | .lh_show = ospf6_unknown_lsa_show, | |
112 | .lh_get_prefix_str = NULL, | |
113 | .lh_debug = 0 /* No default debug */ | |
114 | }; | |
1e05838a | 115 | |
4062abfa | 116 | void ospf6_install_lsa_handler(struct ospf6_lsa_handler *handler) |
1e05838a | 117 | { |
d62a17ae | 118 | /* type in handler is host byte order */ |
3981b5c7 VJ |
119 | int index = handler->lh_type & OSPF6_LSTYPE_FCODE_MASK; |
120 | vector_set_index(ospf6_lsa_handler_vector, index, (void *)handler); | |
1e05838a | 121 | } |
122 | ||
4062abfa | 123 | struct ospf6_lsa_handler *ospf6_get_lsa_handler(uint16_t type) |
1e05838a | 124 | { |
4062abfa | 125 | struct ospf6_lsa_handler *handler = NULL; |
d62a17ae | 126 | unsigned int index = ntohs(type) & OSPF6_LSTYPE_FCODE_MASK; |
1e05838a | 127 | |
d62a17ae | 128 | if (index >= vector_active(ospf6_lsa_handler_vector)) |
129 | handler = &unknown_handler; | |
130 | else | |
131 | handler = vector_slot(ospf6_lsa_handler_vector, index); | |
1e05838a | 132 | |
d62a17ae | 133 | if (handler == NULL) |
134 | handler = &unknown_handler; | |
2680aa2b | 135 | |
d62a17ae | 136 | return handler; |
1e05838a | 137 | } |
718e3744 | 138 | |
d7c0a89a | 139 | const char *ospf6_lstype_name(uint16_t type) |
508e53e2 | 140 | { |
d62a17ae | 141 | static char buf[8]; |
3981b5c7 | 142 | const struct ospf6_lsa_handler *handler; |
508e53e2 | 143 | |
d62a17ae | 144 | handler = ospf6_get_lsa_handler(type); |
145 | if (handler && handler != &unknown_handler) | |
3981b5c7 | 146 | return handler->lh_name; |
718e3744 | 147 | |
d62a17ae | 148 | snprintf(buf, sizeof(buf), "0x%04hx", ntohs(type)); |
149 | return buf; | |
718e3744 | 150 | } |
151 | ||
d7c0a89a | 152 | const char *ospf6_lstype_short_name(uint16_t type) |
e68a6767 | 153 | { |
d62a17ae | 154 | static char buf[8]; |
3981b5c7 | 155 | const struct ospf6_lsa_handler *handler; |
e68a6767 | 156 | |
d62a17ae | 157 | handler = ospf6_get_lsa_handler(type); |
3e67830c | 158 | if (handler) |
3981b5c7 | 159 | return handler->lh_short_name; |
e68a6767 | 160 | |
d62a17ae | 161 | snprintf(buf, sizeof(buf), "0x%04hx", ntohs(type)); |
162 | return buf; | |
e68a6767 DD |
163 | } |
164 | ||
d7c0a89a | 165 | uint8_t ospf6_lstype_debug(uint16_t type) |
1e05838a | 166 | { |
3981b5c7 | 167 | const struct ospf6_lsa_handler *handler; |
d62a17ae | 168 | handler = ospf6_get_lsa_handler(type); |
01db90cd | 169 | return handler->lh_debug; |
1e05838a | 170 | } |
171 | ||
c4122b55 YR |
172 | int metric_type(struct ospf6 *ospf6, int type, uint8_t instance) |
173 | { | |
174 | struct ospf6_redist *red; | |
175 | ||
176 | red = ospf6_redist_lookup(ospf6, type, instance); | |
177 | ||
178 | return ((!red || red->dmetric.type < 0) ? DEFAULT_METRIC_TYPE | |
179 | : red->dmetric.type); | |
180 | } | |
181 | ||
182 | int metric_value(struct ospf6 *ospf6, int type, uint8_t instance) | |
183 | { | |
184 | struct ospf6_redist *red; | |
185 | ||
186 | red = ospf6_redist_lookup(ospf6, type, instance); | |
187 | if (!red || red->dmetric.value < 0) { | |
188 | if (type == DEFAULT_ROUTE) { | |
189 | if (ospf6->default_originate == DEFAULT_ORIGINATE_ZEBRA) | |
190 | return DEFAULT_DEFAULT_ORIGINATE_METRIC; | |
191 | else | |
192 | return DEFAULT_DEFAULT_ALWAYS_METRIC; | |
193 | } else | |
194 | return DEFAULT_DEFAULT_METRIC; | |
195 | } | |
196 | ||
197 | return red->dmetric.value; | |
198 | } | |
199 | ||
718e3744 | 200 | /* RFC2328: Section 13.2 */ |
d62a17ae | 201 | int ospf6_lsa_is_differ(struct ospf6_lsa *lsa1, struct ospf6_lsa *lsa2) |
718e3744 | 202 | { |
d62a17ae | 203 | int len; |
718e3744 | 204 | |
d62a17ae | 205 | assert(OSPF6_LSA_IS_SAME(lsa1, lsa2)); |
718e3744 | 206 | |
d62a17ae | 207 | /* XXX, Options ??? */ |
718e3744 | 208 | |
d62a17ae | 209 | ospf6_lsa_age_current(lsa1); |
210 | ospf6_lsa_age_current(lsa2); | |
211 | if (ntohs(lsa1->header->age) == OSPF_LSA_MAXAGE | |
212 | && ntohs(lsa2->header->age) != OSPF_LSA_MAXAGE) | |
213 | return 1; | |
214 | if (ntohs(lsa1->header->age) != OSPF_LSA_MAXAGE | |
215 | && ntohs(lsa2->header->age) == OSPF_LSA_MAXAGE) | |
216 | return 1; | |
718e3744 | 217 | |
d62a17ae | 218 | /* compare body */ |
219 | if (ntohs(lsa1->header->length) != ntohs(lsa2->header->length)) | |
220 | return 1; | |
718e3744 | 221 | |
d62a17ae | 222 | len = ntohs(lsa1->header->length) - sizeof(struct ospf6_lsa_header); |
223 | return memcmp(lsa1->header + 1, lsa2->header + 1, len); | |
718e3744 | 224 | } |
225 | ||
d62a17ae | 226 | int ospf6_lsa_is_changed(struct ospf6_lsa *lsa1, struct ospf6_lsa *lsa2) |
718e3744 | 227 | { |
d62a17ae | 228 | int length; |
718e3744 | 229 | |
d62a17ae | 230 | if (OSPF6_LSA_IS_MAXAGE(lsa1) ^ OSPF6_LSA_IS_MAXAGE(lsa2)) |
231 | return 1; | |
232 | if (ntohs(lsa1->header->length) != ntohs(lsa2->header->length)) | |
233 | return 1; | |
234 | /* Going beyond LSA headers to compare the payload only makes sense, | |
235 | * when both LSAs aren't header-only. */ | |
236 | if (CHECK_FLAG(lsa1->flag, OSPF6_LSA_HEADERONLY) | |
237 | != CHECK_FLAG(lsa2->flag, OSPF6_LSA_HEADERONLY)) { | |
238 | zlog_warn( | |
239 | "%s: only one of two (%s, %s) LSAs compared is header-only", | |
240 | __func__, lsa1->name, lsa2->name); | |
241 | return 1; | |
242 | } | |
243 | if (CHECK_FLAG(lsa1->flag, OSPF6_LSA_HEADERONLY)) | |
244 | return 0; | |
718e3744 | 245 | |
d62a17ae | 246 | length = OSPF6_LSA_SIZE(lsa1->header) - sizeof(struct ospf6_lsa_header); |
247 | /* Once upper layer verifies LSAs received, length underrun should | |
248 | * become a warning. */ | |
249 | if (length <= 0) | |
250 | return 0; | |
718e3744 | 251 | |
d62a17ae | 252 | return memcmp(OSPF6_LSA_HEADER_END(lsa1->header), |
253 | OSPF6_LSA_HEADER_END(lsa2->header), length); | |
718e3744 | 254 | } |
255 | ||
256 | /* ospf6 age functions */ | |
3b68735f | 257 | /* calculate birth */ |
da086a3b | 258 | void ospf6_lsa_age_set(struct ospf6_lsa *lsa) |
718e3744 | 259 | { |
d62a17ae | 260 | struct timeval now; |
718e3744 | 261 | |
d62a17ae | 262 | assert(lsa && lsa->header); |
718e3744 | 263 | |
d62a17ae | 264 | monotime(&now); |
718e3744 | 265 | |
d62a17ae | 266 | lsa->birth.tv_sec = now.tv_sec - ntohs(lsa->header->age); |
267 | lsa->birth.tv_usec = now.tv_usec; | |
3b68735f | 268 | |
d62a17ae | 269 | return; |
718e3744 | 270 | } |
271 | ||
272 | /* this function calculates current age from its birth, | |
273 | then update age field of LSA header. return value is current age */ | |
d7c0a89a | 274 | uint16_t ospf6_lsa_age_current(struct ospf6_lsa *lsa) |
718e3744 | 275 | { |
d62a17ae | 276 | struct timeval now; |
d7c0a89a QY |
277 | uint32_t ulage; |
278 | uint16_t age; | |
718e3744 | 279 | |
d62a17ae | 280 | assert(lsa); |
281 | assert(lsa->header); | |
718e3744 | 282 | |
d62a17ae | 283 | /* current time */ |
284 | monotime(&now); | |
718e3744 | 285 | |
d62a17ae | 286 | if (ntohs(lsa->header->age) >= OSPF_LSA_MAXAGE) { |
287 | /* ospf6_lsa_premature_aging () sets age to MAXAGE; when using | |
288 | relative time, we cannot compare against lsa birth time, so | |
289 | we catch this special case here. */ | |
290 | lsa->header->age = htons(OSPF_LSA_MAXAGE); | |
291 | return OSPF_LSA_MAXAGE; | |
292 | } | |
293 | /* calculate age */ | |
294 | ulage = now.tv_sec - lsa->birth.tv_sec; | |
718e3744 | 295 | |
d62a17ae | 296 | /* if over MAXAGE, set to it */ |
297 | age = (ulage > OSPF_LSA_MAXAGE ? OSPF_LSA_MAXAGE : ulage); | |
718e3744 | 298 | |
d62a17ae | 299 | lsa->header->age = htons(age); |
300 | return age; | |
718e3744 | 301 | } |
302 | ||
303 | /* update age field of LSA header with adding InfTransDelay */ | |
d7c0a89a | 304 | void ospf6_lsa_age_update_to_send(struct ospf6_lsa *lsa, uint32_t transdelay) |
d62a17ae | 305 | { |
306 | unsigned short age; | |
307 | ||
308 | age = ospf6_lsa_age_current(lsa) + transdelay; | |
309 | if (age > OSPF_LSA_MAXAGE) | |
310 | age = OSPF_LSA_MAXAGE; | |
311 | lsa->header->age = htons(age); | |
312 | } | |
313 | ||
314 | void ospf6_lsa_premature_aging(struct ospf6_lsa *lsa) | |
315 | { | |
316 | /* log */ | |
317 | if (IS_OSPF6_DEBUG_LSA_TYPE(lsa->header->type)) | |
318 | zlog_debug("LSA: Premature aging: %s", lsa->name); | |
319 | ||
320 | THREAD_OFF(lsa->expire); | |
321 | THREAD_OFF(lsa->refresh); | |
322 | ||
323 | /* | |
324 | * We clear the LSA from the neighbor retx lists now because it | |
325 | * will not get deleted later. Essentially, changing the age to | |
326 | * MaxAge will prevent this LSA from being matched with its | |
327 | * existing entries in the retx list thereby causing those entries | |
328 | * to be silently replaced with its MaxAged version, but with ever | |
329 | * increasing retx count causing this LSA to remain forever and | |
330 | * for the MaxAge remover thread to be called forever too. | |
331 | * | |
332 | * The reason the previous entry silently disappears is that when | |
333 | * entry is added to a neighbor's retx list, it replaces the existing | |
334 | * entry. But since the ospf6_lsdb_add() routine is generic and not | |
335 | * aware | |
336 | * of the special semantics of retx count, the retx count is not | |
337 | * decremented when its replaced. Attempting to add the incr and decr | |
338 | * retx count routines as the hook_add and hook_remove for the retx | |
339 | * lists | |
340 | * have a problem because the hook_remove routine is called for MaxAge | |
341 | * entries (as will be the case in a traditional LSDB, unlike in this | |
342 | * case | |
343 | * where an LSDB is used as an efficient tree structure to store all | |
344 | * kinds | |
345 | * of data) that are added instead of calling the hook_add routine. | |
346 | */ | |
347 | ||
348 | ospf6_flood_clear(lsa); | |
349 | ||
350 | lsa->header->age = htons(OSPF_LSA_MAXAGE); | |
351 | thread_execute(master, ospf6_lsa_expire, lsa, 0); | |
718e3744 | 352 | } |
353 | ||
354 | /* check which is more recent. if a is more recent, return -1; | |
355 | if the same, return 0; otherwise(b is more recent), return 1 */ | |
d62a17ae | 356 | int ospf6_lsa_compare(struct ospf6_lsa *a, struct ospf6_lsa *b) |
718e3744 | 357 | { |
d62a17ae | 358 | int32_t seqnuma, seqnumb; |
d7c0a89a QY |
359 | uint16_t cksuma, cksumb; |
360 | uint16_t agea, ageb; | |
d62a17ae | 361 | |
362 | assert(a && a->header); | |
363 | assert(b && b->header); | |
364 | assert(OSPF6_LSA_IS_SAME(a, b)); | |
718e3744 | 365 | |
d62a17ae | 366 | seqnuma = (int32_t)ntohl(a->header->seqnum); |
367 | seqnumb = (int32_t)ntohl(b->header->seqnum); | |
718e3744 | 368 | |
d62a17ae | 369 | /* compare by sequence number */ |
370 | if (seqnuma > seqnumb) | |
371 | return -1; | |
372 | if (seqnuma < seqnumb) | |
373 | return 1; | |
374 | ||
375 | /* Checksum */ | |
376 | cksuma = ntohs(a->header->checksum); | |
377 | cksumb = ntohs(b->header->checksum); | |
378 | if (cksuma > cksumb) | |
379 | return -1; | |
380 | if (cksuma < cksumb) | |
381 | return 0; | |
382 | ||
383 | /* Update Age */ | |
384 | agea = ospf6_lsa_age_current(a); | |
385 | ageb = ospf6_lsa_age_current(b); | |
386 | ||
387 | /* MaxAge check */ | |
388 | if (agea == OSPF_LSA_MAXAGE && ageb != OSPF_LSA_MAXAGE) | |
389 | return -1; | |
390 | else if (agea != OSPF_LSA_MAXAGE && ageb == OSPF_LSA_MAXAGE) | |
391 | return 1; | |
392 | ||
393 | /* Age check */ | |
394 | if (agea > ageb && agea - ageb >= OSPF_LSA_MAXAGE_DIFF) | |
395 | return 1; | |
396 | else if (agea < ageb && ageb - agea >= OSPF_LSA_MAXAGE_DIFF) | |
397 | return -1; | |
398 | ||
399 | /* neither recent */ | |
400 | return 0; | |
401 | } | |
402 | ||
403 | char *ospf6_lsa_printbuf(struct ospf6_lsa *lsa, char *buf, int size) | |
404 | { | |
405 | char id[16], adv_router[16]; | |
406 | inet_ntop(AF_INET, &lsa->header->id, id, sizeof(id)); | |
407 | inet_ntop(AF_INET, &lsa->header->adv_router, adv_router, | |
408 | sizeof(adv_router)); | |
409 | snprintf(buf, size, "[%s Id:%s Adv:%s]", | |
410 | ospf6_lstype_name(lsa->header->type), id, adv_router); | |
411 | return buf; | |
412 | } | |
413 | ||
414 | void ospf6_lsa_header_print_raw(struct ospf6_lsa_header *header) | |
415 | { | |
416 | char id[16], adv_router[16]; | |
417 | inet_ntop(AF_INET, &header->id, id, sizeof(id)); | |
418 | inet_ntop(AF_INET, &header->adv_router, adv_router, sizeof(adv_router)); | |
419 | zlog_debug(" [%s Id:%s Adv:%s]", ospf6_lstype_name(header->type), id, | |
420 | adv_router); | |
421 | zlog_debug(" Age: %4hu SeqNum: %#08lx Cksum: %04hx Len: %d", | |
d7c0a89a | 422 | ntohs(header->age), (unsigned long)ntohl(header->seqnum), |
d62a17ae | 423 | ntohs(header->checksum), ntohs(header->length)); |
424 | } | |
425 | ||
426 | void ospf6_lsa_header_print(struct ospf6_lsa *lsa) | |
427 | { | |
428 | ospf6_lsa_age_current(lsa); | |
429 | ospf6_lsa_header_print_raw(lsa->header); | |
430 | } | |
431 | ||
432 | void ospf6_lsa_show_summary_header(struct vty *vty) | |
433 | { | |
434 | vty_out(vty, "%-4s %-15s%-15s%4s %8s %30s\n", "Type", "LSId", | |
435 | "AdvRouter", "Age", "SeqNum", "Payload"); | |
436 | } | |
437 | ||
e4bacbaa YR |
438 | void ospf6_lsa_show_summary(struct vty *vty, struct ospf6_lsa *lsa, |
439 | json_object *json_array, bool use_json) | |
d62a17ae | 440 | { |
441 | char adv_router[16], id[16]; | |
442 | int type; | |
3981b5c7 | 443 | const struct ospf6_lsa_handler *handler; |
e4bacbaa | 444 | char buf[64]; |
d62a17ae | 445 | int cnt = 0; |
e4bacbaa | 446 | json_object *json_obj = NULL; |
d62a17ae | 447 | |
448 | assert(lsa); | |
449 | assert(lsa->header); | |
450 | ||
451 | inet_ntop(AF_INET, &lsa->header->id, id, sizeof(id)); | |
452 | inet_ntop(AF_INET, &lsa->header->adv_router, adv_router, | |
453 | sizeof(adv_router)); | |
454 | ||
455 | type = ntohs(lsa->header->type); | |
456 | handler = ospf6_get_lsa_handler(lsa->header->type); | |
e4bacbaa YR |
457 | |
458 | if (use_json) | |
459 | json_obj = json_object_new_object(); | |
460 | ||
3e67830c | 461 | switch (type) { |
462 | case OSPF6_LSTYPE_INTER_PREFIX: | |
463 | case OSPF6_LSTYPE_INTER_ROUTER: | |
464 | case OSPF6_LSTYPE_AS_EXTERNAL: | |
ad500b22 | 465 | case OSPF6_LSTYPE_TYPE_7: |
e4bacbaa YR |
466 | if (use_json) { |
467 | json_object_string_add( | |
468 | json_obj, "type", | |
469 | ospf6_lstype_short_name(lsa->header->type)); | |
470 | json_object_string_add(json_obj, "lsId", id); | |
471 | json_object_string_add(json_obj, "advRouter", | |
472 | adv_router); | |
473 | json_object_int_add(json_obj, "age", | |
474 | ospf6_lsa_age_current(lsa)); | |
475 | json_object_int_add( | |
476 | json_obj, "seqNum", | |
477 | (unsigned long)ntohl(lsa->header->seqnum)); | |
478 | json_object_string_add( | |
479 | json_obj, "payload", | |
480 | handler->lh_get_prefix_str(lsa, buf, | |
481 | sizeof(buf), 0)); | |
482 | json_object_array_add(json_array, json_obj); | |
483 | } else | |
484 | vty_out(vty, "%-4s %-15s%-15s%4hu %8lx %30s\n", | |
485 | ospf6_lstype_short_name(lsa->header->type), id, | |
486 | adv_router, ospf6_lsa_age_current(lsa), | |
487 | (unsigned long)ntohl(lsa->header->seqnum), | |
488 | handler->lh_get_prefix_str(lsa, buf, | |
489 | sizeof(buf), 0)); | |
3e67830c | 490 | break; |
491 | case OSPF6_LSTYPE_ROUTER: | |
492 | case OSPF6_LSTYPE_NETWORK: | |
493 | case OSPF6_LSTYPE_GROUP_MEMBERSHIP: | |
3e67830c | 494 | case OSPF6_LSTYPE_LINK: |
495 | case OSPF6_LSTYPE_INTRA_PREFIX: | |
3981b5c7 | 496 | while (handler->lh_get_prefix_str(lsa, buf, sizeof(buf), cnt) |
d62a17ae | 497 | != NULL) { |
e4bacbaa YR |
498 | if (use_json) { |
499 | json_object_string_add( | |
500 | json_obj, "type", | |
501 | ospf6_lstype_short_name( | |
502 | lsa->header->type)); | |
503 | json_object_string_add(json_obj, "lsId", id); | |
504 | json_object_string_add(json_obj, "advRouter", | |
505 | adv_router); | |
506 | json_object_int_add(json_obj, "age", | |
507 | ospf6_lsa_age_current(lsa)); | |
508 | json_object_int_add( | |
509 | json_obj, "seqNum", | |
510 | (unsigned long)ntohl( | |
511 | lsa->header->seqnum)); | |
512 | json_object_string_add(json_obj, "payload", | |
513 | buf); | |
514 | json_object_array_add(json_array, json_obj); | |
515 | json_obj = json_object_new_object(); | |
516 | } else | |
517 | vty_out(vty, "%-4s %-15s%-15s%4hu %8lx %30s\n", | |
518 | ospf6_lstype_short_name( | |
519 | lsa->header->type), | |
520 | id, adv_router, | |
521 | ospf6_lsa_age_current(lsa), | |
522 | (unsigned long)ntohl( | |
523 | lsa->header->seqnum), | |
524 | buf); | |
d62a17ae | 525 | cnt++; |
526 | } | |
e4bacbaa YR |
527 | if (use_json) |
528 | json_object_free(json_obj); | |
3e67830c | 529 | break; |
530 | default: | |
e4bacbaa YR |
531 | if (use_json) { |
532 | json_object_string_add( | |
533 | json_obj, "type", | |
534 | ospf6_lstype_short_name(lsa->header->type)); | |
535 | json_object_string_add(json_obj, "lsId", id); | |
536 | json_object_string_add(json_obj, "advRouter", | |
537 | adv_router); | |
538 | json_object_int_add(json_obj, "age", | |
539 | ospf6_lsa_age_current(lsa)); | |
540 | json_object_int_add( | |
541 | json_obj, "seqNum", | |
542 | (unsigned long)ntohl(lsa->header->seqnum)); | |
543 | json_object_array_add(json_array, json_obj); | |
544 | } else | |
545 | vty_out(vty, "%-4s %-15s%-15s%4hu %8lx\n", | |
546 | ospf6_lstype_short_name(lsa->header->type), id, | |
547 | adv_router, ospf6_lsa_age_current(lsa), | |
548 | (unsigned long)ntohl(lsa->header->seqnum)); | |
3e67830c | 549 | break; |
e68a6767 | 550 | } |
d62a17ae | 551 | } |
552 | ||
e4bacbaa YR |
553 | void ospf6_lsa_show_dump(struct vty *vty, struct ospf6_lsa *lsa, |
554 | json_object *json_array, bool use_json) | |
d62a17ae | 555 | { |
d7c0a89a | 556 | uint8_t *start, *end, *current; |
d62a17ae | 557 | char byte[4]; |
558 | ||
d7c0a89a QY |
559 | start = (uint8_t *)lsa->header; |
560 | end = (uint8_t *)lsa->header + ntohs(lsa->header->length); | |
d62a17ae | 561 | |
e4bacbaa YR |
562 | if (use_json) |
563 | return; | |
564 | ||
d62a17ae | 565 | vty_out(vty, "\n"); |
566 | vty_out(vty, "%s:\n", lsa->name); | |
567 | ||
568 | for (current = start; current < end; current++) { | |
569 | if ((current - start) % 16 == 0) | |
570 | vty_out(vty, "\n "); | |
571 | else if ((current - start) % 4 == 0) | |
572 | vty_out(vty, " "); | |
573 | ||
574 | snprintf(byte, sizeof(byte), "%02x", *current); | |
575 | vty_out(vty, "%s", byte); | |
576 | } | |
577 | ||
578 | vty_out(vty, "\n\n"); | |
e4bacbaa | 579 | |
d62a17ae | 580 | return; |
581 | } | |
582 | ||
e4bacbaa YR |
583 | void ospf6_lsa_show_internal(struct vty *vty, struct ospf6_lsa *lsa, |
584 | json_object *json_array, bool use_json) | |
d62a17ae | 585 | { |
586 | char adv_router[64], id[64]; | |
e4bacbaa | 587 | json_object *json_obj; |
d62a17ae | 588 | |
589 | assert(lsa && lsa->header); | |
590 | ||
591 | inet_ntop(AF_INET, &lsa->header->id, id, sizeof(id)); | |
592 | inet_ntop(AF_INET, &lsa->header->adv_router, adv_router, | |
593 | sizeof(adv_router)); | |
594 | ||
e4bacbaa YR |
595 | if (use_json) { |
596 | json_obj = json_object_new_object(); | |
597 | json_object_int_add(json_obj, "age", | |
598 | ospf6_lsa_age_current(lsa)); | |
599 | json_object_string_add(json_obj, "type", | |
600 | ospf6_lstype_name(lsa->header->type)); | |
601 | json_object_string_add(json_obj, "linkStateId", id); | |
602 | json_object_string_add(json_obj, "advertisingRouter", | |
603 | adv_router); | |
604 | json_object_int_add(json_obj, "lsSequenceNumber", | |
605 | (unsigned long)ntohl(lsa->header->seqnum)); | |
606 | json_object_int_add(json_obj, "checksum", | |
607 | ntohs(lsa->header->checksum)); | |
608 | json_object_int_add(json_obj, "length", | |
609 | ntohs(lsa->header->length)); | |
610 | json_object_int_add(json_obj, "flag", lsa->flag); | |
611 | json_object_int_add(json_obj, "lock", lsa->lock); | |
612 | json_object_int_add(json_obj, "reTxCount", lsa->retrans_count); | |
613 | ||
614 | /* Threads Data not added */ | |
615 | json_object_array_add(json_array, json_obj); | |
616 | } else { | |
617 | vty_out(vty, "\n"); | |
618 | vty_out(vty, "Age: %4hu Type: %s\n", ospf6_lsa_age_current(lsa), | |
619 | ospf6_lstype_name(lsa->header->type)); | |
620 | vty_out(vty, "Link State ID: %s\n", id); | |
621 | vty_out(vty, "Advertising Router: %s\n", adv_router); | |
622 | vty_out(vty, "LS Sequence Number: %#010lx\n", | |
623 | (unsigned long)ntohl(lsa->header->seqnum)); | |
624 | vty_out(vty, "CheckSum: %#06hx Length: %hu\n", | |
625 | ntohs(lsa->header->checksum), | |
626 | ntohs(lsa->header->length)); | |
627 | vty_out(vty, "Flag: %x \n", lsa->flag); | |
628 | vty_out(vty, "Lock: %d \n", lsa->lock); | |
629 | vty_out(vty, "ReTx Count: %d\n", lsa->retrans_count); | |
461d106d RW |
630 | vty_out(vty, "Threads: Expire: %p, Refresh: %p\n", lsa->expire, |
631 | lsa->refresh); | |
e4bacbaa YR |
632 | vty_out(vty, "\n"); |
633 | } | |
d62a17ae | 634 | return; |
635 | } | |
636 | ||
e4bacbaa YR |
637 | void ospf6_lsa_show(struct vty *vty, struct ospf6_lsa *lsa, |
638 | json_object *json_array, bool use_json) | |
d62a17ae | 639 | { |
640 | char adv_router[64], id[64]; | |
3981b5c7 | 641 | const struct ospf6_lsa_handler *handler; |
d62a17ae | 642 | struct timeval now, res; |
68bfcc05 | 643 | char duration[64]; |
e4bacbaa | 644 | json_object *json_obj = NULL; |
d62a17ae | 645 | |
646 | assert(lsa && lsa->header); | |
647 | ||
648 | inet_ntop(AF_INET, &lsa->header->id, id, sizeof(id)); | |
649 | inet_ntop(AF_INET, &lsa->header->adv_router, adv_router, | |
650 | sizeof(adv_router)); | |
651 | ||
652 | monotime(&now); | |
653 | timersub(&now, &lsa->installed, &res); | |
654 | timerstring(&res, duration, sizeof(duration)); | |
e4bacbaa YR |
655 | if (use_json) { |
656 | json_obj = json_object_new_object(); | |
657 | json_object_int_add(json_obj, "age", | |
658 | ospf6_lsa_age_current(lsa)); | |
659 | json_object_string_add(json_obj, "type", | |
660 | ospf6_lstype_name(lsa->header->type)); | |
2804f2d2 | 661 | json_object_string_add(json_obj, "linkStateId", id); |
e4bacbaa YR |
662 | json_object_string_add(json_obj, "advertisingRouter", |
663 | adv_router); | |
664 | json_object_int_add(json_obj, "lsSequenceNumber", | |
665 | (unsigned long)ntohl(lsa->header->seqnum)); | |
d6265808 | 666 | json_object_int_add(json_obj, "checksum", |
e4bacbaa YR |
667 | ntohs(lsa->header->checksum)); |
668 | json_object_int_add(json_obj, "length", | |
669 | ntohs(lsa->header->length)); | |
670 | json_object_string_add(json_obj, "duration", duration); | |
671 | } else { | |
672 | vty_out(vty, "Age: %4hu Type: %s\n", ospf6_lsa_age_current(lsa), | |
673 | ospf6_lstype_name(lsa->header->type)); | |
674 | vty_out(vty, "Link State ID: %s\n", id); | |
675 | vty_out(vty, "Advertising Router: %s\n", adv_router); | |
676 | vty_out(vty, "LS Sequence Number: %#010lx\n", | |
677 | (unsigned long)ntohl(lsa->header->seqnum)); | |
678 | vty_out(vty, "CheckSum: %#06hx Length: %hu\n", | |
679 | ntohs(lsa->header->checksum), | |
680 | ntohs(lsa->header->length)); | |
681 | vty_out(vty, "Duration: %s\n", duration); | |
682 | } | |
d62a17ae | 683 | |
684 | handler = ospf6_get_lsa_handler(lsa->header->type); | |
3981b5c7 VJ |
685 | |
686 | if (handler->lh_show != NULL) | |
e4bacbaa | 687 | handler->lh_show(vty, lsa, json_obj, use_json); |
3981b5c7 VJ |
688 | else { |
689 | assert(unknown_handler.lh_show != NULL); | |
e4bacbaa | 690 | unknown_handler.lh_show(vty, lsa, json_obj, use_json); |
3981b5c7 | 691 | } |
d62a17ae | 692 | |
e4bacbaa YR |
693 | if (use_json) |
694 | json_object_array_add(json_array, json_obj); | |
695 | else | |
696 | vty_out(vty, "\n"); | |
6452df09 | 697 | } |
698 | ||
771e1fbe DL |
699 | struct ospf6_lsa *ospf6_lsa_alloc(size_t lsa_length) |
700 | { | |
30043e4c DL |
701 | struct ospf6_lsa *lsa; |
702 | ||
771e1fbe DL |
703 | lsa = XCALLOC(MTYPE_OSPF6_LSA, sizeof(struct ospf6_lsa)); |
704 | lsa->header = XMALLOC(MTYPE_OSPF6_LSA_HEADER, lsa_length); | |
705 | ||
706 | return lsa; | |
707 | } | |
708 | ||
6452df09 | 709 | /* OSPFv3 LSA creation/deletion function */ |
d62a17ae | 710 | struct ospf6_lsa *ospf6_lsa_create(struct ospf6_lsa_header *header) |
718e3744 | 711 | { |
d62a17ae | 712 | struct ospf6_lsa *lsa = NULL; |
d7c0a89a | 713 | uint16_t lsa_size = 0; |
718e3744 | 714 | |
d62a17ae | 715 | /* size of the entire LSA */ |
716 | lsa_size = ntohs(header->length); /* XXX vulnerable */ | |
718e3744 | 717 | |
771e1fbe | 718 | lsa = ospf6_lsa_alloc(lsa_size); |
718e3744 | 719 | |
d62a17ae | 720 | /* copy LSA from original header */ |
771e1fbe | 721 | memcpy(lsa->header, header, lsa_size); |
718e3744 | 722 | |
d62a17ae | 723 | /* dump string */ |
724 | ospf6_lsa_printbuf(lsa, lsa->name, sizeof(lsa->name)); | |
718e3744 | 725 | |
d62a17ae | 726 | /* calculate birth of this lsa */ |
727 | ospf6_lsa_age_set(lsa); | |
718e3744 | 728 | |
d62a17ae | 729 | return lsa; |
718e3744 | 730 | } |
731 | ||
d62a17ae | 732 | struct ospf6_lsa *ospf6_lsa_create_headeronly(struct ospf6_lsa_header *header) |
718e3744 | 733 | { |
d62a17ae | 734 | struct ospf6_lsa *lsa = NULL; |
718e3744 | 735 | |
771e1fbe | 736 | lsa = ospf6_lsa_alloc(sizeof(struct ospf6_lsa_header)); |
718e3744 | 737 | |
771e1fbe | 738 | memcpy(lsa->header, header, sizeof(struct ospf6_lsa_header)); |
718e3744 | 739 | |
d62a17ae | 740 | SET_FLAG(lsa->flag, OSPF6_LSA_HEADERONLY); |
718e3744 | 741 | |
d62a17ae | 742 | /* dump string */ |
743 | ospf6_lsa_printbuf(lsa, lsa->name, sizeof(lsa->name)); | |
718e3744 | 744 | |
d62a17ae | 745 | /* calculate birth of this lsa */ |
746 | ospf6_lsa_age_set(lsa); | |
718e3744 | 747 | |
d62a17ae | 748 | return lsa; |
718e3744 | 749 | } |
750 | ||
d62a17ae | 751 | void ospf6_lsa_delete(struct ospf6_lsa *lsa) |
718e3744 | 752 | { |
d62a17ae | 753 | assert(lsa->lock == 0); |
718e3744 | 754 | |
d62a17ae | 755 | /* cancel threads */ |
756 | THREAD_OFF(lsa->expire); | |
757 | THREAD_OFF(lsa->refresh); | |
718e3744 | 758 | |
d62a17ae | 759 | /* do free */ |
d107621d | 760 | XFREE(MTYPE_OSPF6_LSA_HEADER, lsa->header); |
d62a17ae | 761 | XFREE(MTYPE_OSPF6_LSA, lsa); |
508e53e2 | 762 | } |
718e3744 | 763 | |
d62a17ae | 764 | struct ospf6_lsa *ospf6_lsa_copy(struct ospf6_lsa *lsa) |
508e53e2 | 765 | { |
d62a17ae | 766 | struct ospf6_lsa *copy = NULL; |
508e53e2 | 767 | |
d62a17ae | 768 | ospf6_lsa_age_current(lsa); |
769 | if (CHECK_FLAG(lsa->flag, OSPF6_LSA_HEADERONLY)) | |
770 | copy = ospf6_lsa_create_headeronly(lsa->header); | |
771 | else | |
772 | copy = ospf6_lsa_create(lsa->header); | |
773 | assert(copy->lock == 0); | |
508e53e2 | 774 | |
d62a17ae | 775 | copy->birth = lsa->birth; |
776 | copy->originated = lsa->originated; | |
777 | copy->received = lsa->received; | |
778 | copy->installed = lsa->installed; | |
779 | copy->lsdb = lsa->lsdb; | |
780 | copy->rn = NULL; | |
508e53e2 | 781 | |
d62a17ae | 782 | return copy; |
718e3744 | 783 | } |
784 | ||
508e53e2 | 785 | /* increment reference counter of struct ospf6_lsa */ |
62270cc3 | 786 | struct ospf6_lsa *ospf6_lsa_lock(struct ospf6_lsa *lsa) |
718e3744 | 787 | { |
d62a17ae | 788 | lsa->lock++; |
62270cc3 | 789 | return lsa; |
718e3744 | 790 | } |
791 | ||
508e53e2 | 792 | /* decrement reference counter of struct ospf6_lsa */ |
744ba569 | 793 | struct ospf6_lsa *ospf6_lsa_unlock(struct ospf6_lsa *lsa) |
718e3744 | 794 | { |
d62a17ae | 795 | /* decrement reference counter */ |
796 | assert(lsa->lock > 0); | |
797 | lsa->lock--; | |
718e3744 | 798 | |
d62a17ae | 799 | if (lsa->lock != 0) |
744ba569 | 800 | return lsa; |
508e53e2 | 801 | |
d62a17ae | 802 | ospf6_lsa_delete(lsa); |
744ba569 | 803 | return NULL; |
718e3744 | 804 | } |
805 | ||
6b0655a2 | 806 | |
508e53e2 | 807 | /* ospf6 lsa expiry */ |
d62a17ae | 808 | int ospf6_lsa_expire(struct thread *thread) |
718e3744 | 809 | { |
d62a17ae | 810 | struct ospf6_lsa *lsa; |
beadc736 | 811 | struct ospf6 *ospf6; |
718e3744 | 812 | |
d62a17ae | 813 | lsa = (struct ospf6_lsa *)THREAD_ARG(thread); |
718e3744 | 814 | |
d62a17ae | 815 | assert(lsa && lsa->header); |
816 | assert(OSPF6_LSA_IS_MAXAGE(lsa)); | |
817 | assert(!lsa->refresh); | |
718e3744 | 818 | |
d62a17ae | 819 | lsa->expire = (struct thread *)NULL; |
718e3744 | 820 | |
d62a17ae | 821 | if (IS_OSPF6_DEBUG_LSA_TYPE(lsa->header->type)) { |
822 | zlog_debug("LSA Expire:"); | |
823 | ospf6_lsa_header_print(lsa); | |
824 | } | |
718e3744 | 825 | |
d62a17ae | 826 | if (CHECK_FLAG(lsa->flag, OSPF6_LSA_HEADERONLY)) |
827 | return 0; /* dbexchange will do something ... */ | |
beadc736 | 828 | ospf6 = ospf6_get_by_lsdb(lsa); |
4dc43886 MR |
829 | assert(ospf6); |
830 | ||
d62a17ae | 831 | /* reinstall lsa */ |
832 | ospf6_install_lsa(lsa); | |
508e53e2 | 833 | |
d62a17ae | 834 | /* reflood lsa */ |
835 | ospf6_flood(NULL, lsa); | |
bf986da7 | 836 | |
d62a17ae | 837 | /* schedule maxage remover */ |
838 | ospf6_maxage_remove(ospf6); | |
718e3744 | 839 | |
d62a17ae | 840 | return 0; |
718e3744 | 841 | } |
842 | ||
d62a17ae | 843 | int ospf6_lsa_refresh(struct thread *thread) |
718e3744 | 844 | { |
d62a17ae | 845 | struct ospf6_lsa *old, *self, *new; |
846 | struct ospf6_lsdb *lsdb_self; | |
6452df09 | 847 | |
d62a17ae | 848 | old = (struct ospf6_lsa *)THREAD_ARG(thread); |
849 | assert(old && old->header); | |
6452df09 | 850 | |
d62a17ae | 851 | old->refresh = (struct thread *)NULL; |
6452df09 | 852 | |
d62a17ae | 853 | lsdb_self = ospf6_get_scoped_lsdb_self(old); |
854 | self = ospf6_lsdb_lookup(old->header->type, old->header->id, | |
855 | old->header->adv_router, lsdb_self); | |
856 | if (self == NULL) { | |
857 | if (IS_OSPF6_DEBUG_LSA_TYPE(old->header->type)) | |
858 | zlog_debug("Refresh: could not find self LSA, flush %s", | |
859 | old->name); | |
860 | ospf6_lsa_premature_aging(old); | |
861 | return 0; | |
862 | } | |
718e3744 | 863 | |
d62a17ae | 864 | /* Reset age, increment LS sequence number. */ |
865 | self->header->age = htons(0); | |
866 | self->header->seqnum = | |
867 | ospf6_new_ls_seqnum(self->header->type, self->header->id, | |
868 | self->header->adv_router, old->lsdb); | |
869 | ospf6_lsa_checksum(self->header); | |
870 | ||
871 | new = ospf6_lsa_create(self->header); | |
872 | new->lsdb = old->lsdb; | |
873 | new->refresh = NULL; | |
874 | thread_add_timer(master, ospf6_lsa_refresh, new, OSPF_LS_REFRESH_TIME, | |
875 | &new->refresh); | |
876 | ||
877 | /* store it in the LSDB for self-originated LSAs */ | |
878 | ospf6_lsdb_add(ospf6_lsa_copy(new), lsdb_self); | |
879 | ||
880 | if (IS_OSPF6_DEBUG_LSA_TYPE(new->header->type)) { | |
881 | zlog_debug("LSA Refresh:"); | |
882 | ospf6_lsa_header_print(new); | |
883 | } | |
718e3744 | 884 | |
d62a17ae | 885 | ospf6_install_lsa(new); |
886 | ospf6_flood(NULL, new); | |
6452df09 | 887 | |
d62a17ae | 888 | return 0; |
718e3744 | 889 | } |
890 | ||
beadc736 | 891 | void ospf6_flush_self_originated_lsas_now(struct ospf6 *ospf6) |
76249532 | 892 | { |
e161c2dc | 893 | struct listnode *node, *nnode; |
76249532 CS |
894 | struct ospf6_area *oa; |
895 | struct ospf6_lsa *lsa; | |
896 | const struct route_node *end = NULL; | |
897 | uint32_t type, adv_router; | |
e161c2dc | 898 | struct ospf6_interface *oi; |
76249532 CS |
899 | |
900 | ospf6->inst_shutdown = 1; | |
901 | ||
902 | for (ALL_LIST_ELEMENTS_RO(ospf6->area_list, node, oa)) { | |
996c9314 LB |
903 | end = ospf6_lsdb_head(oa->lsdb_self, 0, 0, ospf6->router_id, |
904 | &lsa); | |
76249532 CS |
905 | while (lsa) { |
906 | /* RFC 2328 (14.1): Set MAXAGE */ | |
907 | lsa->header->age = htons(OSPF_LSA_MAXAGE); | |
908 | /* Flood MAXAGE LSA*/ | |
909 | ospf6_flood(NULL, lsa); | |
910 | ||
911 | lsa = ospf6_lsdb_next(end, lsa); | |
912 | } | |
e161c2dc YR |
913 | |
914 | for (ALL_LIST_ELEMENTS(oa->if_list, node, nnode, oi)) { | |
915 | end = ospf6_lsdb_head(oi->lsdb_self, 0, 0, | |
916 | ospf6->router_id, &lsa); | |
917 | while (lsa) { | |
918 | /* RFC 2328 (14.1): Set MAXAGE */ | |
919 | lsa->header->age = htons(OSPF_LSA_MAXAGE); | |
920 | /* Flood MAXAGE LSA*/ | |
921 | ospf6_flood(NULL, lsa); | |
922 | ||
923 | lsa = ospf6_lsdb_next(end, lsa); | |
924 | } | |
925 | } | |
76249532 CS |
926 | } |
927 | ||
928 | type = htons(OSPF6_LSTYPE_AS_EXTERNAL); | |
929 | adv_router = ospf6->router_id; | |
930 | for (ALL_LSDB_TYPED_ADVRTR(ospf6->lsdb, type, adv_router, lsa)) { | |
931 | /* RFC 2328 (14.1): Set MAXAGE */ | |
932 | lsa->header->age = htons(OSPF_LSA_MAXAGE); | |
933 | ospf6_flood(NULL, lsa); | |
934 | } | |
935 | } | |
6b0655a2 | 936 | |
d8a4e42b | 937 | /* Fletcher Checksum -- Refer to RFC1008. */ |
718e3744 | 938 | |
d8a4e42b JR |
939 | /* All the offsets are zero-based. The offsets in the RFC1008 are |
940 | one-based. */ | |
d62a17ae | 941 | unsigned short ospf6_lsa_checksum(struct ospf6_lsa_header *lsa_header) |
718e3744 | 942 | { |
d7c0a89a QY |
943 | uint8_t *buffer = (uint8_t *)&lsa_header->type; |
944 | int type_offset = | |
945 | buffer - (uint8_t *)&lsa_header->age; /* should be 2 */ | |
718e3744 | 946 | |
d62a17ae | 947 | /* Skip the AGE field */ |
d7c0a89a | 948 | uint16_t len = ntohs(lsa_header->length) - type_offset; |
718e3744 | 949 | |
d62a17ae | 950 | /* Checksum offset starts from "type" field, not the beginning of the |
951 | lsa_header struct. The offset is 14, rather than 16. */ | |
d7c0a89a | 952 | int checksum_offset = (uint8_t *)&lsa_header->checksum - buffer; |
d8a4e42b | 953 | |
d62a17ae | 954 | return (unsigned short)fletcher_checksum(buffer, len, checksum_offset); |
d8a4e42b | 955 | } |
718e3744 | 956 | |
d62a17ae | 957 | int ospf6_lsa_checksum_valid(struct ospf6_lsa_header *lsa_header) |
d8a4e42b | 958 | { |
d7c0a89a QY |
959 | uint8_t *buffer = (uint8_t *)&lsa_header->type; |
960 | int type_offset = | |
961 | buffer - (uint8_t *)&lsa_header->age; /* should be 2 */ | |
718e3744 | 962 | |
d62a17ae | 963 | /* Skip the AGE field */ |
d7c0a89a | 964 | uint16_t len = ntohs(lsa_header->length) - type_offset; |
718e3744 | 965 | |
d62a17ae | 966 | return (fletcher_checksum(buffer, len, FLETCHER_CHECKSUM_VALIDATE) |
967 | == 0); | |
718e3744 | 968 | } |
969 | ||
d62a17ae | 970 | void ospf6_lsa_init(void) |
6452df09 | 971 | { |
d62a17ae | 972 | ospf6_lsa_handler_vector = vector_init(0); |
973 | ospf6_install_lsa_handler(&unknown_handler); | |
718e3744 | 974 | } |
975 | ||
d62a17ae | 976 | void ospf6_lsa_terminate(void) |
ae2254aa | 977 | { |
d62a17ae | 978 | vector_free(ospf6_lsa_handler_vector); |
ae2254aa | 979 | } |
6b0655a2 | 980 | |
3981b5c7 | 981 | static char *ospf6_lsa_handler_name(const struct ospf6_lsa_handler *h) |
1e05838a | 982 | { |
d62a17ae | 983 | static char buf[64]; |
984 | unsigned int i; | |
3981b5c7 | 985 | unsigned int size = strlen(h->lh_name); |
1e05838a | 986 | |
996c9314 LB |
987 | if (!strcmp(h->lh_name, "unknown") |
988 | && h->lh_type != OSPF6_LSTYPE_UNKNOWN) { | |
3981b5c7 | 989 | snprintf(buf, sizeof(buf), "%#04hx", h->lh_type); |
d62a17ae | 990 | return buf; |
991 | } | |
1e05838a | 992 | |
d62a17ae | 993 | for (i = 0; i < MIN(size, sizeof(buf)); i++) { |
3981b5c7 VJ |
994 | if (!islower((unsigned char)h->lh_name[i])) |
995 | buf[i] = tolower((unsigned char)h->lh_name[i]); | |
d62a17ae | 996 | else |
3981b5c7 | 997 | buf[i] = h->lh_name[i]; |
d62a17ae | 998 | } |
999 | buf[size] = '\0'; | |
1000 | return buf; | |
1e05838a | 1001 | } |
718e3744 | 1002 | |
4dc43886 MR |
1003 | DEFPY (debug_ospf6_lsa_aggregation, |
1004 | debug_ospf6_lsa_aggregation_cmd, | |
1005 | "[no] debug ospf6 lsa aggregation", | |
1006 | NO_STR | |
1007 | DEBUG_STR | |
1008 | OSPF6_STR | |
1009 | "Debug Link State Advertisements (LSAs)\n" | |
1010 | "External LSA Aggregation\n") | |
1011 | { | |
1012 | ||
1013 | struct ospf6_lsa_handler *handler; | |
1014 | ||
1015 | handler = ospf6_get_lsa_handler(OSPF6_LSTYPE_AS_EXTERNAL); | |
1016 | if (handler == NULL) | |
1017 | return CMD_WARNING_CONFIG_FAILED; | |
1018 | ||
1019 | if (no) | |
1020 | UNSET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_AGGR); | |
1021 | else | |
1022 | SET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_AGGR); | |
1023 | ||
1024 | return CMD_SUCCESS; | |
1025 | } | |
1026 | ||
1e05838a | 1027 | DEFUN (debug_ospf6_lsa_type, |
1028 | debug_ospf6_lsa_hex_cmd, | |
6de69f83 | 1029 | "debug ospf6 lsa <router|network|inter-prefix|inter-router|as-external|link|intra-prefix|unknown> [<originate|examine|flooding>]", |
508e53e2 | 1030 | DEBUG_STR |
1031 | OSPF6_STR | |
1032 | "Debug Link State Advertisements (LSAs)\n" | |
3a2d747c QY |
1033 | "Display Router LSAs\n" |
1034 | "Display Network LSAs\n" | |
1035 | "Display Inter-Area-Prefix LSAs\n" | |
1036 | "Display Inter-Router LSAs\n" | |
1037 | "Display As-External LSAs\n" | |
1038 | "Display Link LSAs\n" | |
1039 | "Display Intra-Area-Prefix LSAs\n" | |
1040 | "Display LSAs of unknown origin\n" | |
1041 | "Display details of LSAs\n" | |
1042 | "Dump LSAs\n" | |
1043 | "Display LSA's internal information\n") | |
508e53e2 | 1044 | { |
d62a17ae | 1045 | int idx_lsa = 3; |
1046 | int idx_type = 4; | |
1047 | unsigned int i; | |
1048 | struct ospf6_lsa_handler *handler = NULL; | |
1049 | ||
1050 | for (i = 0; i < vector_active(ospf6_lsa_handler_vector); i++) { | |
1051 | handler = vector_slot(ospf6_lsa_handler_vector, i); | |
1052 | if (handler == NULL) | |
1053 | continue; | |
1054 | if (strncmp(argv[idx_lsa]->arg, ospf6_lsa_handler_name(handler), | |
1055 | strlen(argv[idx_lsa]->arg)) | |
1056 | == 0) | |
1057 | break; | |
3981b5c7 | 1058 | if (!strcasecmp(argv[idx_lsa]->arg, handler->lh_name)) |
d62a17ae | 1059 | break; |
1060 | handler = NULL; | |
1061 | } | |
1062 | ||
1063 | if (handler == NULL) | |
1064 | handler = &unknown_handler; | |
1065 | ||
1066 | if (argc == 5) { | |
1067 | if (strmatch(argv[idx_type]->text, "originate")) | |
01db90cd | 1068 | SET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_ORIGINATE); |
d62a17ae | 1069 | else if (strmatch(argv[idx_type]->text, "examine")) |
01db90cd | 1070 | SET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_EXAMIN); |
d62a17ae | 1071 | else if (strmatch(argv[idx_type]->text, "flooding")) |
01db90cd | 1072 | SET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_FLOOD); |
d62a17ae | 1073 | } else |
01db90cd | 1074 | SET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG); |
d62a17ae | 1075 | |
1076 | return CMD_SUCCESS; | |
508e53e2 | 1077 | } |
1078 | ||
1e05838a | 1079 | DEFUN (no_debug_ospf6_lsa_type, |
1080 | no_debug_ospf6_lsa_hex_cmd, | |
6de69f83 | 1081 | "no debug ospf6 lsa <router|network|inter-prefix|inter-router|as-external|link|intra-prefix|unknown> [<originate|examine|flooding>]", |
508e53e2 | 1082 | NO_STR |
1083 | DEBUG_STR | |
1084 | OSPF6_STR | |
1085 | "Debug Link State Advertisements (LSAs)\n" | |
16cedbb0 QY |
1086 | "Display Router LSAs\n" |
1087 | "Display Network LSAs\n" | |
1088 | "Display Inter-Area-Prefix LSAs\n" | |
3a2d747c | 1089 | "Display Inter-Router LSAs\n" |
16cedbb0 QY |
1090 | "Display As-External LSAs\n" |
1091 | "Display Link LSAs\n" | |
1092 | "Display Intra-Area-Prefix LSAs\n" | |
3a2d747c | 1093 | "Display LSAs of unknown origin\n" |
16cedbb0 QY |
1094 | "Display details of LSAs\n" |
1095 | "Dump LSAs\n" | |
1096 | "Display LSA's internal information\n") | |
508e53e2 | 1097 | { |
d62a17ae | 1098 | int idx_lsa = 4; |
1099 | int idx_type = 5; | |
d7c0a89a | 1100 | unsigned int i; |
d62a17ae | 1101 | struct ospf6_lsa_handler *handler = NULL; |
1102 | ||
1103 | for (i = 0; i < vector_active(ospf6_lsa_handler_vector); i++) { | |
1104 | handler = vector_slot(ospf6_lsa_handler_vector, i); | |
1105 | if (handler == NULL) | |
1106 | continue; | |
1107 | if (strncmp(argv[idx_lsa]->arg, ospf6_lsa_handler_name(handler), | |
1108 | strlen(argv[idx_lsa]->arg)) | |
1109 | == 0) | |
1110 | break; | |
3981b5c7 | 1111 | if (!strcasecmp(argv[idx_lsa]->arg, handler->lh_name)) |
d62a17ae | 1112 | break; |
1113 | } | |
718e3744 | 1114 | |
d62a17ae | 1115 | if (handler == NULL) |
1116 | return CMD_SUCCESS; | |
1117 | ||
1118 | if (argc == 6) { | |
1119 | if (strmatch(argv[idx_type]->text, "originate")) | |
01db90cd DL |
1120 | UNSET_FLAG(handler->lh_debug, |
1121 | OSPF6_LSA_DEBUG_ORIGINATE); | |
d62a17ae | 1122 | if (strmatch(argv[idx_type]->text, "examine")) |
01db90cd | 1123 | UNSET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_EXAMIN); |
d62a17ae | 1124 | if (strmatch(argv[idx_type]->text, "flooding")) |
01db90cd | 1125 | UNSET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_FLOOD); |
d62a17ae | 1126 | } else |
01db90cd | 1127 | UNSET_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG); |
d62a17ae | 1128 | |
1129 | return CMD_SUCCESS; | |
1130 | } | |
1131 | ||
1132 | void install_element_ospf6_debug_lsa(void) | |
1133 | { | |
1134 | install_element(ENABLE_NODE, &debug_ospf6_lsa_hex_cmd); | |
1135 | install_element(ENABLE_NODE, &no_debug_ospf6_lsa_hex_cmd); | |
1136 | install_element(CONFIG_NODE, &debug_ospf6_lsa_hex_cmd); | |
1137 | install_element(CONFIG_NODE, &no_debug_ospf6_lsa_hex_cmd); | |
4dc43886 MR |
1138 | |
1139 | install_element(ENABLE_NODE, &debug_ospf6_lsa_aggregation_cmd); | |
1140 | install_element(CONFIG_NODE, &debug_ospf6_lsa_aggregation_cmd); | |
d62a17ae | 1141 | } |
1142 | ||
1143 | int config_write_ospf6_debug_lsa(struct vty *vty) | |
1144 | { | |
d7c0a89a | 1145 | unsigned int i; |
3981b5c7 | 1146 | const struct ospf6_lsa_handler *handler; |
d62a17ae | 1147 | |
1148 | for (i = 0; i < vector_active(ospf6_lsa_handler_vector); i++) { | |
1149 | handler = vector_slot(ospf6_lsa_handler_vector, i); | |
1150 | if (handler == NULL) | |
1151 | continue; | |
01db90cd | 1152 | if (CHECK_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG)) |
d62a17ae | 1153 | vty_out(vty, "debug ospf6 lsa %s\n", |
1154 | ospf6_lsa_handler_name(handler)); | |
01db90cd | 1155 | if (CHECK_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_ORIGINATE)) |
d62a17ae | 1156 | vty_out(vty, "debug ospf6 lsa %s originate\n", |
1157 | ospf6_lsa_handler_name(handler)); | |
01db90cd | 1158 | if (CHECK_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_EXAMIN)) |
d62a17ae | 1159 | vty_out(vty, "debug ospf6 lsa %s examine\n", |
1160 | ospf6_lsa_handler_name(handler)); | |
01db90cd | 1161 | if (CHECK_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_FLOOD)) |
d62a17ae | 1162 | vty_out(vty, "debug ospf6 lsa %s flooding\n", |
1163 | ospf6_lsa_handler_name(handler)); | |
4dc43886 MR |
1164 | if (CHECK_FLAG(handler->lh_debug, OSPF6_LSA_DEBUG_AGGR)) |
1165 | vty_out(vty, "debug ospf6 lsa aggregation\n"); | |
d62a17ae | 1166 | } |
718e3744 | 1167 | |
d62a17ae | 1168 | return 0; |
1169 | } |